A nickel electroplating solution ultrafiltration system

Abstract

The present invention discloses a nickel plating solution ultrafiltration system, which includes a filter cartridge housing, a pressure filtration mechanism and a disassembly and replacement mechanism. The upper port of the filter cartridge housing is hermetically fixed with a top cover by bolts, and the lower port of the filter cartridge housing is hermetically fixed with a bottom cover by bolts. The pressure filtration mechanism is arranged in the housing cavity of the filter cartridge housing. It assists in the high-efficiency ultrafiltration operation of the nickel plating solution through the way of reciprocating extrusion, and through the way of automatic extraction, it conducts the recovery treatment of the nickel plating solution accumulated in the narrow part of the lower chamber of the middle cavity of the bottom cover, ensuring that the filter element body can be disassembled and replaced without accumulated nickel plating solution. The disassembly and replacement mechanism is arranged in the wide part of the lower chamber of the middle cavity of the bottom cover. This nickel plating solution ultrafiltration system realizes the recovery treatment of the accumulated nickel plating solution, ensures that the filter element is disassembled and replaced in an operating environment without accumulated nickel plating solution, avoids causing harm during the disassembly and replacement process, and realizes the automatic switching between the nickel plating solution pressure filtration function and the accumulated nickel plating solution recovery function.

Description

Technical Field

[0001] The present invention relates to the technical field related to nickel solution treatment, and specifically to a nickel solution ultrafiltration system. Background Art

[0002] The quality and performance of the base in electronic products are directly related to the reliability and stability of the entire electronic product. To ensure its quality and performance, surface plating treatment is required. According to different design requirements, the plating methods and plating materials involved are different. For the nickel plating layer, the nickel layer has excellent corrosion resistance and electrical conductivity, which is crucial for ensuring the service life and performance of the base of electronic products;

[0003] In electroless nickel plating, nickel ions in an aqueous solution are reduced by a reducing agent under certain conditions and deposited on the surface of a solid substrate. The components in the electroless nickel solution and their interactions, especially the co-deposition phenomenon of nickel ions and carbon-containing organic substances, are likely to cause black spots in the plating layer. To avoid this phenomenon, ultrafiltration treatment of the electroless nickel solution is required.

[0004] After searching for the invention patent with the patent number CN116040748B, an ultrafiltration device for industrial water recovery is disclosed. The ultrafiltration device includes an outer cylinder and a filter membrane inner cylinder. The filter membrane inner cylinder is arranged inside the outer cylinder, and the outer cylinder includes an upper cylinder, a lower cylinder, and an intermediate connecting part. The intermediate connecting part includes an annular seat and two groups of top rods. Both end faces of the annular seat have installation grooves. The two groups of top rods are respectively arranged in the two installation grooves, and the two groups of top rods respectively extend into the inner sides of the upper cylinder and the lower cylinder. A group of elastic lateral clamping members are arranged on the inner walls of the upper cylinder and the lower cylinder. The end of the top rod away from the intermediate connecting part has a pressing block. The structure of the present invention is simple, convenient for disassembling and replacing the filter membrane inner cylinder. When installing the outer cylinder, the filter membrane inner cylinder can be automatically clamped by the elastic lateral clamping members, improving the ability of the clamped filter membrane inner cylinder to resist the impact of industrial water and extending the service life of the ultrafiltration device, with strong practicability.

[0005] Based on the above patent, combined with the existing solutions and the actual use process, there are still some problems with the current nickel solution ultrafiltration device. For example:

[0006] 1. The existing ultrafiltration devices are mainly composed of two parts: a filter cylinder and a filter element. Similar to the above patent, the above patent mainly includes an outer cylinder and a filter membrane inner cylinder. When disassembling and replacing the filter membrane inner cylinder, since the outer cylinder is likely to accumulate the liquid to be filtered, disassembling the filter membrane inner cylinder will be accompanied by the leakage of the liquid to be filtered. When the liquid to be filtered is a toxic chemical liquid, such as nickel solution, etc., it is likely to affect the disassembly process or the disassembling personnel. However, neither the above patent nor the existing ultrafiltration devices can realize the recovery treatment of the liquid accumulated in the filter cylinder and cannot ensure that the filter element is disassembled in a situation without accumulated liquid;

[0007] 2. When replacing the filter element of the existing ultrafiltration device, manual operation is required. In the above patent, when replacing the filter element, elastic lateral clamping parts on the inner walls of the upper cylinder and the lower cylinder are needed to assist in manual operation. Both operations are relatively cumbersome, affecting the convenience of disassembly and replacement;

[0008] Therefore, we propose a nickel solution ultrafiltration system to solve the problems raised above. Summary of the Invention

[0009] The purpose of the present invention is to provide a nickel solution ultrafiltration system to solve the problems in the above background technology, namely, the inability to recover and process the accumulated liquid in the filter cartridge, and the inability to ensure that the filter element is disassembled under the condition of no accumulated liquid, which affects the convenience of disassembly and replacement.

[0010] To achieve the above purpose, the present invention provides the following technical solution: A nickel solution ultrafiltration system, comprising:

[0011] A filter cartridge housing, the upper port of the filter cartridge housing is hermetically fixed with a top cover by bolts, and the liquid inlet pipe in the top cover is hermetically fixed together with a nickel solution storage tank. The lower port of the filter cartridge housing is hermetically fixed with a bottom cover by bolts, and the liquid outlet pipe in the bottom cover is hermetically fixed together with a nickel plating bath. And a filter element body is hermetically inserted into the narrow part of the lower chamber in the middle of the bottom cover;

[0012] It further includes:

[0013] A pressure filtration mechanism, which is arranged in the cavity of the filter cartridge housing. It assists in the high-efficiency ultrafiltration operation of nickel solution by means of reciprocating extrusion, and recovers the accumulated nickel solution in the narrow part of the lower chamber in the middle of the bottom cover by means of automatic extraction, ensuring that the filter element body is disassembled and replaced without accumulated nickel solution;

[0014] A disassembly and replacement mechanism, which is arranged in the wide part of the lower chamber in the middle of the bottom cover and is used for the automatic disassembly and replacement of the filter element body.

[0015] Preferably, the pressure filtration mechanism includes a main pressure member, a sub-pressure member and a first electric telescopic rod. The main pressure member forms a lifting and sliding structure in the cavity of the filter cartridge housing, and the sliding connection between the pressure liquid chamber in the main pressure member and the bottom cover is sealed by a sealing ring. A sub-pressure member is slidably connected in the liquid extraction chamber of the main pressure member, and the connection between the wide part of the sub-pressure member and the liquid extraction chamber of the main pressure member is sealed by a sealing ring. And the sliding connection between the sleeve part of the sub-pressure member and the linkage column part of the main pressure member is sealed by a sealing ring. Moreover, the sliding connection between the sleeve part of the sub-pressure member and the pipe shell part of the top cover is sealed by a sealing ring;

[0016] Wherein, pin column parts with an integrated structure are arranged on both the left and right sides of the outer side wall at the lower end of the main pressing part;

[0017] Wherein, a spring reset part is arranged at the connection between the sleeve part in the secondary pressing part and the linkage column part in the main pressing part, and the connection disk in the spring reset part is fixedly connected to the upper side wall of the upper tube cavity of the sleeve part in the secondary pressing part through a bolt, and the connection ring in the spring reset part is fixedly connected to the upper end of the linkage column part in the main pressing part through a bolt;

[0018] Wherein, the upper end of the sleeve part in the secondary pressing part is fixedly connected to the output end of the first electric telescopic rod through a bolt, and the first electric telescopic rod is fixedly installed on the upper cover body of the top end cover through a bolt.

[0019] Preferably, "L"-shaped locking grooves are formed on the left and right side cavity walls of the filter cartridge shell, and the "L"-shaped locking grooves are connected to the pin column parts in a sliding manner, and the transverse groove in the "L"-shaped locking groove is connected to the pin column parts in a limiting and engaging manner.

[0020] Preferably, the plug column part in the main pressing part is connected to the upper chamber of the middle cavity of the bottom end cover in a sealed plugging manner through an auxiliary sealing ring, a circulation channel is formed on the plug column part in the main pressing part, and the bottom through hole in the circulation channel is correspondingly communicated with the communication port between the upper chamber and the lower chamber of the middle cavity of the bottom end cover;

[0021] Wherein, a backflow channel for communicating between the upper chamber and the lower chamber of its middle cavity is formed on the cover cavity wall of the bottom end cover, and the upper port of the backflow channel is correspondingly communicated with the side through hole in the circulation channel.

[0022] Preferably, return-shaped grooves are formed on both the front and back sides of the linkage column part in the main pressing part, the return-shaped groove includes a first vertical groove, a spiral groove, a second vertical groove and an arc groove, the head end of the first vertical groove is communicated with the tail end of the spiral groove, the head end of the spiral groove is communicated with the tail end of the second vertical groove, the head end of the second vertical groove is communicated with the tail end of the arc groove, and the head end of the arc groove is communicated with the tail end of the first vertical groove;

[0023] Wherein, the return-shaped groove is connected to the pin bolt part in a sliding manner, and the pin bolt part is fixedly connected to the sleeve part in the secondary pressing part through a bolt.

[0024] Preferably, liquid supply channels are formed in a circular array with the center of the secondary pressing part as the center, the upper ports of the liquid supply channels are correspondingly communicated with the gap between the narrow part in the secondary pressing part and the cavity wall of the liquid extraction cavity in the main pressing part, and the lower ports of the liquid supply channels are correspondingly communicated with the upper end opening of the circulation channel;

[0025] Wherein, a valve rod member for controlling its connection or closure is provided on the liquid supply channel, and the valve rod member forms a telescopic sliding structure on the auxiliary pressure member, and a return spring is installed at the connection between the valve rod member and the auxiliary pressure member.

[0026] Preferably, a first sealing ring, a second sealing ring and a third sealing ring are fixedly clamped in sequence from top to bottom on the wide part of the valve rod member, and a communication hole is formed between the first sealing ring and the second sealing ring in the valve rod member, and the communication hole is connected to the liquid supply channel in a corresponding communication manner;

[0027] Wherein, the narrow part of the valve rod member is connected to the lower side wall of the tube shell part in the top end cover in a pressing and fitting manner.

[0028] Preferably, the disassembly and replacement mechanism includes an assembly seat and a second electric telescopic rod. The assembly seat is inserted into the wide part of the lower chamber of the middle cavity of the bottom end cover through the auxiliary sealing of the sealing ring, and the center position of the lower end of the assembly seat is fixedly connected to the output end of the second electric telescopic rod by bolts, and the second electric telescopic rod is fixedly installed on the connecting frame of the bottom end cover by bolts.

[0029] Preferably, a liquid outlet channel is formed in the middle of the assembly seat, and the upper port of the liquid outlet channel is hermetically inserted into the filter element body, and the side port of the liquid outlet channel is correspondingly communicated with the liquid outlet pipe in the bottom end cover.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows: The nickel medicine ultrafiltration system realizes the recycling treatment of the accumulated nickel medicine, ensures that the filter element is disassembled and replaced in an operating environment without accumulated nickel medicine, avoids the harmful effects caused during the disassembly and replacement process, and realizes the automatic switching between the nickel medicine pressure filtration function and the accumulated nickel medicine recycling function through the linkage setting;

[0031] 1. There are a main pressure member and an auxiliary pressure member. After the auxiliary pressure member drives the main pressure member to slide down synchronously, the spring reset member is elastically deformed by screwing and reset, so that the pin column part slides into the horizontal groove of the "L" - shaped locking groove to limit the main pressure member. After the auxiliary pressure member is driven to slide in the liquid extraction cavity of the main pressure member, a negative pressure vacuum space is formed. The accumulated nickel medicine in the narrow part of the lower chamber of the middle cavity of the bottom end cover is extracted by using the back - extraction channel and the bottom through - hole in the circulation channel, realizing the recycling treatment of the accumulated nickel medicine, ensuring that the filter element is disassembled and replaced in an operating environment without accumulated nickel medicine, that is, ensuring the safe disassembly and replacement operation of the filter element, and avoiding the harmful effects caused by the leakage of the accumulated nickel medicine to the operators during the disassembly and replacement process;

[0032] Further, after the auxiliary pressing member is continuously driven to slide in the liquid extraction cavity of the main pressing member, the bolt member sequentially slides along the second vertical groove path and the spiral groove path and then slides into the first vertical groove path. Through the sliding fit between the bolt member and the spiral groove path, the main pressing member is driven to perform a reset rotation on the auxiliary pressing member, cooperate with the pulling elastic deformation reset of the spring reset member, and make the pin column part slide along the transverse groove path in the "L"-shaped locking groove into the longitudinal groove path, realizing the automatic unlocking and reset of the main pressing member, optimizing the overall mechanism. Through the linkage setting, the automatic switching between the nickel electroplating solution pressure filtration function and the recycling function of the accumulated nickel electroplating solution is realized, enriching the functionality of the nickel electroplating solution ultrafiltration system;

[0033] 2. There are a main pressing member and an assembly seat. The lower end of the filter element body is fixedly inserted into the upper port of the liquid outlet flow channel, that is, the filter element body is fixedly arranged on the assembly seat. The lower end of the assembly seat is fixedly connected to the output end of the second electric telescopic rod through bolts. Driven by the second electric telescopic rod, the assembly seat drives the filter element body to form a disassembly structure on the bottom end cover, which is different from the traditional manual screwing of bolts for disassembly operation, realizes the automatic disassembly of the filter element, simplifies the disassembly operation steps, and facilitates the subsequent convenient replacement;

[0034] Further, after the main pressing member is limited on the auxiliary pressing member, when the auxiliary pressing member drives the main pressing member to move upward synchronously, the narrow part of the valve rod member presses and fits against the lower side wall of the shell part in the top end cover, making the communication hole correspond to the liquid supply flow channel and setting the liquid supply flow channel in a communicating state. The nickel electroplating solution enters the liquid pressure cavity in the main pressing member through the liquid supply flow channel. After the auxiliary pressing member drives the main pressing member to move downward synchronously, the narrow part of the valve rod member loses the pressing fit against the lower side wall of the shell part in the top end cover, closing the communication hole to the liquid supply flow channel, and pressing the nickel electroplating solution in the liquid pressure cavity of the main pressing member. Through the automatic reciprocating extrusion, it assists in the high-efficiency pressure filtration operation of the nickel electroplating solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a front view three-dimensional structure schematic diagram of the present invention;

[0036] Figure 2 is a front view sectional three-dimensional structure schematic diagram of the present invention;

[0037] Figure 3 is a front view sectional three-dimensional structure schematic diagram of the connection between the top end cover and the auxiliary pressing member of the present invention;

[0038] Figure 4 is a front view sectional three-dimensional structure schematic diagram of the connection between the main pressing member and the auxiliary pressing member of the present invention;

[0039] Figure 5 is a side view sectional three-dimensional structure schematic diagram of the main pressing member of the present invention;

[0040] Figure 6This is the front view cross-sectional three-dimensional structure schematic diagram of the connection between the "L"-shaped lock groove and the pin column part of the present invention;

[0041] Figure 7 This is the side view three-dimensional structure schematic diagram of the auxiliary pressure part of the present invention;

[0042] Figure 8 This is the side view cross-sectional three-dimensional structure schematic diagram of the connection between the bolt part and the first vertical groove path of the present invention;

[0043] Figure 9 This is the front view cross-sectional three-dimensional structure schematic diagram of the connection between the auxiliary pressure part and the valve rod part of the present invention;

[0044] Figure 10 This is the front view cross-sectional three-dimensional structure schematic diagram of the disassembly of the bottom end cover and the assembly seat of the present invention.

[0045] In the figure: 1. Filter cartridge shell; 101. "L"-shaped lock groove; 2. Top end cover; 3. Bottom end cover; 301. Backflow channel; 4. Filter element body; 5. Pressure filtration mechanism; 6. Disassembly and replacement mechanism; 7. Main pressure part; 701. Pin column part; 702. Circulation channel; 8. Auxiliary pressure part; 801. Liquid supply channel; 9. Spring return part; 10. First electric telescopic rod; 11. Return groove; 1101. First vertical groove path; 1102. Spiral groove path; 1103. Second vertical groove path; 1104. Arc groove path; 12. Bolt part; 13. Valve rod part; 1301. Communication hole; 14. Return spring; 15. Assembly seat; 1501. Liquid outlet channel; 16. Second electric telescopic rod. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a nickel electroplating solution ultrafiltration system, including a filter cartridge shell 1, and further including a pressure filtration mechanism 5 and a disassembly and replacement mechanism 6.

[0048] When the nickel electroplating solution ultrafiltration system is in use, the pressure filtration mechanism 5 is arranged in the shell cavity of the filter cartridge shell 1, and it is on the same vertical central axis as the filter cartridge shell 1. The pressure filtration mechanism 5 assists in the high-efficiency ultrafiltration operation of the nickel electroplating solution by means of reciprocating extrusion;

[0049] Specifically, according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 andFigure 9 As shown, an integrated liquid inlet pipe is connected to the right cover of the top cover 2. The liquid inlet pipe is hermetically fixed to the nickel medicine storage tank, which is a prior art and not described in the accompanying drawings of the specification. Since the filter cartridge shell 1 is arranged in a cylindrical structure with an open upper port, a tubular part of an integrated structure is vertically downwardly arranged in the middle of the cover cavity of the top cover 2. A sealing ring is fixedly clamped at the connection between the tubular part and the filter cartridge shell 1. After the top cover 2 is installed, its lower end is clamped at the upper port of the filter cartridge shell 1, and the tubular part is inserted into the upper shell cavity of the filter cartridge shell 1 and is hermetically fixed to the upper port of the filter cartridge shell 1 by bolts. Also, since there is an annular gap reserved between the tubular part of the top cover 2 and the cover cavity opening for the communication between the cover cavity of the top cover 2 and the shell cavity of the filter cartridge shell 1, the nickel medicine enters the cover cavity of the top cover 2 through the liquid inlet pipe in the top cover 2 and then enters the shell cavity of the filter cartridge shell 1 through the annular gap in the top cover 2;

[0050] Since the main pressing part 7 is arranged in a circular tubular structure, its cavity is divided into a liquid extraction cavity and a liquid pressing cavity from top to bottom by the intermediate cavity wall. A sealing ring is fixedly clamped on the outer side of the upper end of the bottom cover 3, and there is a gap reserved between its upper section and the cavity wall of the filter cartridge shell 1. Also, since the maximum sliding distance dimension of the main pressing part 7 is less than the depth dimension of the gap between the bottom cover 3 and the filter cartridge shell 1, after the main pressing part 7 is installed, the cavity wall of its liquid pressing cavity is movably inserted into the gap between the bottom cover 3 and the filter cartridge shell 1, and the sliding connection between the liquid pressing cavity and the bottom cover 3 is sealed by a sealing ring. After the nickel medicine enters the shell cavity of the filter cartridge shell 1, it then falls into the liquid extraction cavity of the main pressing part 7;

[0051] Since a tubular part of an integrated structure is vertically upwardly arranged at the central position of the auxiliary pressing part 8, after the auxiliary pressing part 8 is installed, it is placed in the liquid extraction cavity of the main pressing part 7, and the tubular part is movably inserted into the shell cavity of the tubular part in the top cover 2. Also, since the first electric telescopic rod 10 is fixedly installed on the upper side cover of the top cover 2 by bolts after installation and is in a downward state and on the same vertical central axis as the pressure filtration mechanism 5, its output end movably penetrates through the upper side cover of the top cover 2 and is inserted into the tubular part in the top cover 2, and the output end is fixedly connected to the upper end of the tubular part of the auxiliary pressing part 8 by bolts. When the first electric telescopic rod 10 is started to contract and operate, the tubular part of the auxiliary pressing part 8 forms a sliding structure upward in the tubular part of the top cover 2;

[0052] Since sealing rings are fixedly clamped at equal intervals on the outer side of the sleeve part in the auxiliary pressure member 8 and are in contact with the pipe shell part in the top end cover 2, the sliding connection between the sleeve part in the auxiliary pressure member 8 and the pipe shell part in the top end cover 2 is sealed by the sealing rings. Also, since the pin column part 701 is movably inserted into the "L"-shaped locking groove 101 after being placed, and the pin bolt member 12 is movably inserted into the loop groove 11 after being placed, through the sliding fit between the pin column part 701 and the "L"-shaped locking groove 101, and through the fit between the pin bolt member 12 and the loop groove 11, the main pressure member 7 is limited on the auxiliary pressure member 8. When the auxiliary pressure member 8 is driven to slide upward, it drives the main pressure member 7 to move synchronously, so that the main pressure member 7 slides upward in the shell cavity of the filter cartridge shell 1. Among them, the cavity wall of the pressure liquid cavity slides along the upper section of the bottom end cover 3, and the pin column part 701 slides along the longitudinal groove in the "L"-shaped locking groove 101;

[0053] Since a valve rod member 13 for controlling its connection or disconnection is provided on the liquid supply flow channel 801, the longitudinal section of the valve rod member 13 is in a "convex" shape structure, which is divided into two parts: a wide part and a narrow part. After being placed, it is in a vertical state. Among them, the wide part is movably inserted into the cavity in the auxiliary pressure member 8, and the narrow part movably penetrates through the cavity wall and extends upward, so that the valve rod member 13 is movably positioned on the auxiliary pressure member 8. Also, since a spring chamber is opened at the lower section of the wide part in the valve rod member 13, a return spring 14 is installed at its connection with the auxiliary pressure member 8. The return spring 14 is movably inserted into the spring chamber in the valve rod member 13 after being placed. One end of it abuts against the chamber wall of the spring chamber, and the other end abuts against the cavity wall of the auxiliary pressure member 8. After the auxiliary pressure member 8 drives the valve rod member 13 to slide upward, the narrow part in the valve rod member 13 is connected to the lower side wall of the pipe shell part in the top end cover 2 in a pressing and fitting manner, and the valve rod member 13 slides and contracts on the auxiliary pressure member 8. After the valve rod member 13 slides, the return spring 14 is compressed and undergoes elastic deformation;

[0054] Since the liquid supply flow channels 801 are arranged in an annular array with the center of the auxiliary pressure member 8 as the center of the circle, and the valve rod members 13 are arranged in an annular array with the center of the auxiliary pressure member 8 as the center of the circle. After being placed, they penetrate through the liquid supply flow channels 801. Each valve rod member 13 and each liquid supply flow channel 801 are arranged in a one-to-one correspondence. Also, since the first sealing ring, the second sealing ring, and the third sealing ring are fixedly clamped on the wide part of the valve rod member 13 in sequence from top to bottom, and a communication hole 1301 is opened between the first sealing ring and the second sealing ring in the valve rod member 13. When the valve rod member 13 is driven to slide and contract, after the communication hole 1301 corresponds to and communicates with the liquid supply flow channel 801, the connection between the two is sealed by the assistance of the first sealing ring and the second sealing ring in the valve rod member 13, that is, through the corresponding connection between the communication hole 1301 and the liquid supply flow channel 801, the liquid supply flow channel 801 is set in a connected state;

[0055] Since the longitudinal section of the auxiliary pressure member 8 is arranged in a "convex" shape, it is divided into two parts, a narrow part and a wide part, from top to bottom. After being installed, it is movably inserted into the liquid extraction cavity in the main pressure member 7, and the sleeve part thereof is movably sleeved on the linkage column part in the main pressure member 7. A sealing ring is fixedly clamped on the outer side of the wide part of the auxiliary pressure member 8 and is fitted with the liquid extraction cavity in the main pressure member 7. Through the sealing ring, the connection between the wide part of the auxiliary pressure member 8 and the liquid extraction cavity in the main pressure member 7 is sealed. A sealing ring is fixedly clamped at the lower end pipe orifice of the sleeve part of the auxiliary pressure member 8 and is fitted with the linkage column part in the main pressure member 7. Through the sealing ring, the sliding connection between the sleeve part of the auxiliary pressure member 8 and the linkage column part in the main pressure member 7 is sealed;

[0056] Since a gap for liquid supply is reserved between the narrow part of the auxiliary pressure member 8 and the cavity wall of the liquid extraction cavity in the main pressure member 7, and since the liquid supply flow channel 801 is arranged in an "L" shape, the upper orifice thereof is in an open state, and the upper orifice thereof is correspondingly communicated with the gap between the narrow part of the auxiliary pressure member 8 and the cavity wall of the liquid extraction cavity in the main pressure member 7. After the nickel-based liquid enters the liquid extraction cavity in the main pressure member 7, it fills the gap between the narrow part of the auxiliary pressure member 8 and the cavity wall of the liquid extraction cavity in the main pressure member 7. When the valve rod member 13 loses the blockage of the liquid supply flow channel 801 and the liquid supply flow channel 801 remains in a communicating state, the nickel-based liquid enters it through the upper orifice of the liquid supply flow channel 801;

[0057] Since a plug column part with an integrated structure is vertically arranged downward at the central position of the liquid pressure cavity in the main pressure member 7, a circulation channel 702 is opened on the plug column part. The longitudinal section of the circulation channel 702 is arranged in a tee state, the center of the ring thereof coincides with the rotation center of the main pressure member 7, and the upper end thereof is in an open state. Moreover, bottom through holes are equally angledly opened on the bottom cavity wall at the lower end, and side through holes are equally angledly opened on the side cavity wall in the middle. The circulation channel 702 is used for the connection between the liquid extraction cavity and the liquid pressure cavity in the main pressure member 7. Since the lower orifice of the liquid supply flow channel 801 is in an open state and the lower orifice thereof is correspondingly communicated with the upper end opening of the circulation channel 702, the nickel-based liquid passes through the lower orifice of the liquid supply flow channel 801 and flows out through the side through holes and the bottom through holes in the circulation channel 702 and flows into the liquid pressure cavity in the main pressure member 7;

[0058] According to the above, start the first electric telescopic rod 10 to extend and operate, so that the sleeve part in the auxiliary pressing member 8 forms a sliding structure downward in the tube shell part of the top end cover 2, driving the main pressing member 7 to move synchronously, and making the main pressing member 7 slide downward in the shell cavity of the filter cartridge housing 1. At this time, the pin column part 701 is still in the longitudinal groove of the "L"-shaped locking groove 101. When the auxiliary pressing member 8 drives the valve rod member 13 to slide downward, the narrow part of the valve rod member 13 loses the pressing fit with the lower side wall of the tube shell part of the top end cover 2. Utilizing the elastic deformation reset of the return spring 14, the valve rod member 13 slides out on the auxiliary pressing member 8. After the communication hole 1301 and the liquid supply flow channel 801 lose corresponding communication, the sealing treatment of the closing part between the two is assisted by the second sealing ring and the third sealing ring in the valve rod member 13, so that the liquid supply flow channel 801 is set in a closed state, that is, the pressure liquid cavity in the main pressing member 7 is in a sealed state. After the auxiliary pressing member 8 drives the main pressing member 7 to slide downward, the nickel medicine water in the pressure liquid cavity of the main pressing member 7 is pressed;

[0059] Since the lower port of the filter cartridge housing 1 is in an open state, a sealing ring is fixedly clamped at the connection between the bottom end cover 3 and the filter cartridge housing 1. After the bottom end cover 3 is installed, its upper section is inserted into the lower shell cavity of the filter cartridge housing 1, and its middle part is clamped at the lower port of the filter cartridge housing 1, and it is fixedly sealed to the lower port of the filter cartridge housing 1 by bolts. Also, since the cover cavity of the bottom end cover 3 is provided with two parts, namely an upper cavity and a lower cavity, from top to bottom, the partition cavity wall between the upper cavity and the lower cavity of the bottom end cover 3 is provided with through openings at equal angles. The through openings are used for the communication between the upper cavity and the lower cavity. After the nickel medicine water in the pressure liquid cavity of the main pressing member 7 is pressed, it enters the lower cavity through the through openings between the upper cavity and the lower cavity of the bottom end cover 3;

[0060] Since the longitudinal section of the lower cavity of the bottom end cover 3 is in a "convex" shape structure, divided into a wide part and a narrow part, a filter element body 4 is hermetically inserted in the narrow part of the lower cavity of the bottom end cover 3. A sealing ring is fixedly clamped at the upper end of the filter element body 4. After it is installed, its upper end is inserted into the narrow part of the lower cavity of the bottom end cover 3, and is fixedly inserted together with the sealing ring on the partition cavity wall between the upper cavity and the lower cavity of the bottom end cover 3, and its lower end extends into the wide part of the lower cavity of the bottom end cover 3. Also, since there is a gap space reserved for the nickel medicine water to pass through between the filter element body 4 and the narrow cavity wall of the lower cavity of the bottom end cover 3, after the nickel medicine water enters the lower cavity of the bottom end cover 3 and is placed in the gap between the filter element body 4 and the narrow cavity wall of the lower cavity of the bottom end cover 3, through pressing, the nickel medicine water passes through the filter element body 4 after filtration and enters the tube cavity of the filter element body 4;

[0061] Since sealing rings are fixedly clamped at both the upper and lower ends of the assembly seat 15, after being installed, it is inserted and sealed in the wide part of the lower chamber of the bottom end cover 3 with the assistance of the sealing rings. The upper sealing ring and the lower sealing ring above and below it are used for sealing the connection between the liquid outlet channel 1501 and the liquid outlet pipe in the bottom end cover 3. Also, since a liquid outlet channel 1501 is provided in the middle of the assembly seat 15, the liquid outlet channel 1501 is divided into two parts: an upper port and a side port. The upper port is opened in the middle of the upper wall of the assembly seat 15 in an open state, and the side port is opened in the middle of the side wall of the assembly seat 15 in an open state. A sealing ring is fixedly clamped at the lower end of the filter element body 4. After being installed, the lower end together with the sealing ring is fixedly inserted into the upper port of the liquid outlet channel 1501, and the two are sealed and inserted together. Moreover, since the left cover body at the lower end of the bottom end cover 3 is provided with an integrated liquid outlet pipe, the liquid outlet pipe is communicated with the wide part of the lower chamber therein, and the liquid outlet pipe is hermetically fixed to the nickel plating bath (the nickel plating bath is a prior art and is not described in the specification drawings). The side port of the liquid outlet channel 1501 is correspondingly communicated with the liquid outlet pipe in the bottom end cover 3. The filtered nickel plating solution passes through the liquid outlet channel 1501 and enters the nickel plating bath through the liquid outlet pipe in the bottom end cover 3. Based on the above, through the reciprocating telescopic operation of the first electric telescopic rod 10, the reciprocating lifting and sliding of the auxiliary pressure member 8 and the main pressure member 7 are operated and controlled to complete the pressure filtration operation of the nickel plating solution.

[0062] After the nickel plating solution ultrafiltration system is used, the pressure filtration mechanism 5 recovers the nickel plating solution accumulated in the narrow part of the lower chamber of the bottom end cover 3 by automatic extraction, ensuring that the filter element body 4 can be disassembled and replaced without accumulated nickel plating solution.

[0063] Specifically, according to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 9 shown, since sealing rings are fixedly clamped above and below the side through holes in the circulation channel 702, when the first electric telescopic rod 10 is started to continuously extend and operate, the auxiliary pressure member 8 drives the main pressure member 7 to slide completely downward, and the plugging column part in the main pressure member 7 is connected to the upper chamber of the bottom end cover 3 in a sealed plugging manner with the assistance of the sealing ring. That is, after the plugging column part in the main pressure member 7 is plugged into the upper chamber of the bottom end cover 3, the lower sealing ring of the side through hole is attached to the upper chamber of the bottom end cover 3 for sealing treatment, and the upper sealing ring of the side through hole is attached to the upper end of the bottom end cover 3 for sealing treatment.

[0064] Since "L"-shaped locking grooves 101 are provided on the cavity walls of the left and right sides of the filter cartridge housing 1, and the orientations of the left and right "L"-shaped locking grooves 101 are set in opposite states. The "L"-shaped locking groove 101 is divided into a longitudinal groove in a vertical state and a transverse groove in an arc state. Also, since pin column parts 701 with an integrated structure are provided on the left and right sides of the outer side wall of the lower end of the main pressing part 7, and after being installed, they are vertically inserted into the "L"-shaped locking groove 101 in a movable manner, and the two are connected by a sliding method. The left and right pin column parts 701 are respectively arranged corresponding to the left and right "L"-shaped locking grooves 101. When the main pressing part 7 is completely lowered and slides, the pin column part 701 slides along the longitudinal groove in the "L"-shaped locking groove 101 to the connection point between the longitudinal groove and the transverse groove;

[0065] Since a linkage column part with an integrated structure is vertically arranged at the central position of the liquid extraction cavity in the main pressing part 7, and the lower end pipe orifice of the sleeve part in the auxiliary pressing part 8 is in an open state. After the auxiliary pressing part 8 is installed, it is movably inserted into the liquid extraction cavity in the main pressing part 7, and the sleeve part is movably sleeved on the linkage column part in the main pressing part 7. Also, since a spring reset part 9 is provided at the connection between the sleeve part in the auxiliary pressing part 8 and the linkage column part in the main pressing part 7, the spring reset part 9 is composed of a connection disk, a spring body, and a connection ring from top to bottom. The connection disk is fixedly connected to the upper end of the spring body, and the lower end of the spring body is fixedly connected to the connection ring. After the spring reset part 9 is installed, it is movably inserted into the lumen of the sleeve part in the auxiliary pressing part 8. The connection disk is inserted and fixedly connected to the upper lumen wall of the sleeve part in the auxiliary pressing part 8 by bolts, and the connection ring is sleeved and fixedly connected to the upper end of the linkage column part in the main pressing part 7 by bolts. Through the rotational elastic deformation and reset of the spring reset part 9, the linkage column part in the main pressing part 7 rotates in the sleeve part of the auxiliary pressing part 8;

[0066] Since the main pressing part 7 is movably inserted into the cavity of the filter cartridge housing 1 after being installed, and the cavity wall of the liquid pressing cavity is movably inserted into the gap between the bottom end cover 3 and the filter cartridge housing 1, that is, the liquid pressing cavity in the main pressing part 7 is movably sleeved on the upper section of the bottom end cover 3. Also, since the arc dimension of the transverse groove in the "L"-shaped locking groove 101 is 90 degrees, and the center of the arc of the transverse groove coincides with the rotation center of the main pressing part 7. After the main pressing part 7 is driven, a rotating structure is formed in the cavity of the filter cartridge housing 1, so that the pin column part 701 slides into the transverse groove in the "L"-shaped locking groove 101, and the transverse groove in the "L"-shaped locking groove 101 and the pin column part 701 are connected by a limiting clamping method, that is, the main pressing part 7 is limited;

[0067] Since return grooves 11 are formed on both the front and rear sides of the linkage column part in the main pressing part 7, and the front and rear return grooves 11 are arranged in opposite orientations, the bolt parts 12 are symmetrically arranged front and rear with respect to the vertical central axis of the sleeve part in the auxiliary pressing part 8. After being installed, the bolt parts 12 are in a vertical state, penetrate through the tube wall of the sleeve part in the auxiliary pressing part 8, extend into the lumen of the sleeve part, and are fixedly connected to the sleeve part in the auxiliary pressing part 8 through bolts. Moreover, they are movably inserted into the return grooves 11. The front and rear bolt parts 12 are respectively arranged corresponding to the front and rear return grooves 11, and the two are connected in a sliding manner. Also, since the return groove 11 includes a first vertical groove path 1101, a spiral groove path 1102, a second vertical groove path 1103, and an arc groove path 1104, the head end of the second vertical groove path 1103 is connected to the tail end of the arc groove path 1104, and the head end of the arc groove path 1104 is connected to the tail end of the first vertical groove path 1101. The center of the arc of the arc groove path 1104 coincides with the center of the circle of the linkage column part in the main pressing part 7, and its radian size is 90 degrees. When the linkage column part in the main pressing part 7 rotates within the sleeve part in the auxiliary pressing part 8, the bolt part 12 slides from the tail end of the first vertical groove path 1101 along the arc groove path 1104 and slides to the head end of the second vertical groove path 1103;

[0068] Since the second vertical groove path 1103 and the first vertical groove path 1101 are arranged in a parallel state, its length dimension is equal to the maximum distance dimension of the sliding of the auxiliary pressing part 8 on the main pressing part 7, and the maximum distance dimension of the sliding of the auxiliary pressing part 8 on the main pressing part 7 is less than the depth dimension of the liquid extraction cavity in the main pressing part 7. Start the first electric telescopic rod 10 to contract and operate. At this time, the main pressing part 7 is restricted and cannot move synchronously with the auxiliary pressing part 8, so that the sleeve part in the auxiliary pressing part 8 forms a sliding structure on the linkage column part in the main pressing part 7, and the auxiliary pressing part 8 slides within the liquid extraction cavity in the main pressing part 7, making the liquid extraction cavity in the main pressing part 7 a negative pressure vacuum space;

[0069] Since the cover cavity wall of the bottom end cover 3 is provided with a backflow channel 301 for communicating between the upper chamber and the lower chamber of its middle cavity, the backflow channel 301 is arranged in an annular array with the center of the bottom end cover 3 as the center of the circle. The upper port of the backflow channel 301 is correspondingly communicated with the upper chamber of the middle cavity of the bottom end cover 3, and the lower port of the backflow channel 301 is correspondingly communicated with the bottom end of the narrow part of the lower chamber of the middle cavity of the bottom end cover 3. After the plugging column part in the main pressing part 7 is inserted into the upper chamber of the middle cavity of the bottom end cover 3, with the assistance of the upper and lower sealing rings above and below the circulation channel 702, the sealing treatment is carried out at the connection between the circulation channel 702 and the backflow channel 301, so that the bottom through hole in the circulation channel 702 is correspondingly communicated with the communication port between the upper chamber and the lower chamber of the middle cavity of the bottom end cover 3, and the upper port of the backflow channel 301 is correspondingly communicated with the side through hole in the circulation channel 702. After the negative pressure vacuum in the liquid extraction cavity of the main pressing part 7, through the bottom through hole in the circulation channel 702 and the backflow channel 301, the accumulated nickel medicament in the narrow part of the lower chamber of the middle cavity of the bottom end cover 3 is recovered and extracted, and is recovered into the liquid extraction cavity of the main pressing part 7, ensuring that the filter element body 4 can be replaced and disassembled without accumulated nickel medicament;

[0070] According to the above, when performing the unlocking and reset operation of the main pressing part 7, since the head end of the spiral groove 1102 is connected to the tail end of the second vertical groove 1103, and the head end of the first vertical groove 1101 is connected to the tail end of the spiral groove 1102, and since the spiral angle of the spiral groove 1102 is 90 degrees, start the first electric telescopic rod 10 to continuously contract and operate, so that the auxiliary pressing part 8 continuously slides upward in the liquid extraction cavity of the main pressing part 7, and the spring reset part 9 is pulled to generate elastic deformation. After the auxiliary pressing part 8 slides upward in the liquid extraction cavity of the main pressing part 7, the bolt part 12 slides from the tail end of the second vertical groove 1103 along the spiral groove 1102 and slides to the head end of the first vertical groove 1101. Through the sliding cooperation between the bolt part 12 and the spiral groove 1102, the linkage column part in the main pressing part 7 rotates and resets in the sleeve part of the auxiliary pressing part 8, and the spring reset part 9 is twisted to generate elastic deformation. When the main pressing part 7 rotates and resets, the pin column part 701 slides along the horizontal groove in the "L" - shaped locking groove 101 to the connection between the horizontal groove and the vertical groove, and the main pressing part 7 loses its limit. Using the pulling elastic deformation reset of the spring reset part 9, the main pressing part 7 slides and resets on the auxiliary pressing part 8, and the bolt part 12 slides and resets along the first vertical groove 1101, and the pin column part 701 slides and resets along the vertical groove of the "L" - shaped locking groove 101 to complete the automatic unlocking and reset of the main pressing part 7.

[0071] After the nickel medicament ultra - filtration system is used, the disassembly and replacement mechanism 6 is arranged in the wide part of the lower chamber of the middle cavity of the bottom end cover 3, on the same vertical central axis as the pressure filtration mechanism 5, and is used for the automatic disassembly and replacement treatment of the filter element body 4;

[0072] Specifically, according to Figure 1 、 Figure 2and Figure 10 As shown, a connecting frame with an integrated structure is vertically and downwardly provided at the lower end of the bottom end cover 3. Since the second electric telescopic rod 16 is fixedly installed on the connecting frame in the bottom end cover 3 by bolts after being installed, and is in an upward state, and is on the same vertical central axis as the filter cartridge housing 1, wherein the output end movably penetrates through the connecting frame in the bottom end cover 3 and is inserted to the lower end of the assembly seat 15, and the output end is fixedly connected to the central position of the lower end of the assembly seat 15 by bolts. Also, since the lower end of the filter element body 4 is fixedly inserted into the upper port of the liquid outlet flow channel 1501, when the second electric telescopic rod 16 is started to contract and operate, the assembly seat 15 drives the filter element body 4 to move synchronously, and the filter element body 4 is moved out of the lower chamber in the bottom end cover 3 to complete automatic disassembly and assist in the replacement process;

[0073] This is the entire working process of the nickel plating solution ultrafiltration system. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0074] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0075] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A nickel electroplating solution ultrafiltration system, comprising: A filter cartridge housing (1), the upper port of the filter cartridge housing (1) is hermetically fixed with a top cover (2) by bolts, and the liquid inlet pipe in the top cover (2) is hermetically fixed to the nickel electroplating solution storage tank. The lower port of the filter cartridge housing (1) is hermetically fixed with a bottom cover (3) by bolts, and the liquid outlet pipe in the bottom cover (3) is hermetically fixed to the nickel plating bath. And a filter element body (4) is hermetically inserted into the narrow part of the lower chamber of the bottom cover (3); It is characterized in that it further comprises: A pressure filtration mechanism (5), the pressure filtration mechanism (5) is arranged in the housing cavity of the filter cartridge housing (1), and it assists in the high-efficiency ultrafiltration operation of the nickel electroplating solution by means of reciprocating extrusion, and it recovers the accumulated nickel electroplating solution in the narrow part of the lower chamber of the bottom cover (3) by means of automatic extraction, ensuring that the filter element body (4) can be disassembled and replaced without accumulated nickel electroplating solution; Among them, the pressure filtration mechanism (5) includes a main pressure member (7), a secondary pressure member (8) and a first electric telescopic rod (10). The main pressure member (7) forms a lifting and sliding structure in the housing cavity of the filter cartridge housing (1), and a secondary pressure member (8) is slidably connected in the liquid extraction cavity of the main pressure member (7); Among them, the upper end of the sleeve part of the secondary pressure member (8) is fixedly connected to the output end of the first electric telescopic rod (10) by bolts, and the first electric telescopic rod (10) is fixedly installed on the upper side cover of the top cover (2) by bolts; Among them, a circulation channel (702) is opened on the plug column part of the main pressure member (7), and a back extraction channel (301) for communicating the upper chamber and the lower chamber of the bottom cover (3) is opened on the cover cavity wall of the bottom cover (3); A disassembly and replacement mechanism (6), the disassembly and replacement mechanism (6) is arranged in the wide part of the lower chamber of the bottom cover (3), and it is used for the automatic disassembly and replacement treatment of the filter element body (4); Among them, the disassembly and replacement mechanism (6) includes an assembly seat (15) and a second electric telescopic rod (16). The assembly seat (15) is hermetically inserted into the wide part of the lower chamber of the bottom cover (3) with the assistance of a sealing ring, and the center position of the lower end of the assembly seat (15) is fixedly connected to the output end of the second electric telescopic rod (16) by bolts, and the second electric telescopic rod (16) is fixedly installed on the connecting frame in the bottom cover (3) by bolts.

2. The nickel electroplating solution ultrafiltration system according to claim 1, wherein: The sliding connection between the liquid pressure chamber of the main pressure member (7) and the bottom cover (3) is sealed by a sealing ring. The connection between the wide part of the secondary pressure member (8) and the liquid extraction cavity of the main pressure member (7) is sealed by a sealing ring, and the sliding connection between the sleeve part of the secondary pressure member (8) and the linkage column part of the main pressure member (7) is sealed by a sealing ring, and the sliding connection between the sleeve part of the secondary pressure member (8) and the pipe shell part of the top cover (2) is sealed by a sealing ring; Among them, integrated pin column parts (701) are arranged on both the left and right sides of the outer side wall of the lower end of the main pressure member (7); Among them, a spring return member (9) is provided at the connection between the sleeve portion of the auxiliary pressing member (8) and the linkage column portion of the main pressing member (7). The connecting disk in the spring return member (9) is fixedly connected to the upper side wall of the tube cavity of the sleeve portion in the auxiliary pressing member (8) by bolts, and the connecting ring in the spring return member (9) is fixedly connected to the upper end of the linkage column portion in the main pressing member (7) by bolts.

3. The nickel electroplating solution ultrafiltration system according to claim 1, wherein: "L"-shaped locking grooves (101) are formed on the left and right side cavity walls of the filter cartridge housing (1), and the "L"-shaped locking grooves (101) are connected to the pin column portion (701) in a sliding manner, and the horizontal groove in the "L"-shaped locking groove (101) is connected to the pin column portion (701) in a limiting and engaging manner.

4. A nickel electroplating solution ultrafiltration system according to claim 1, characterized in that: The plugging column portion in the main pressing member (7) is connected to the upper chamber of the bottom end cover (3) in a sealed plugging manner with the assistance of a sealing ring. The bottom through hole in the circulation channel (702) is correspondingly communicated with the communication port between the upper chamber and the lower chamber of the bottom end cover (3), and the upper port of the back-drawing channel (301) is correspondingly communicated with the side through hole in the circulation channel (702).

5. The nickel electroplating solution ultrafiltration system according to claim 2, characterized in that: Circular grooves (11) are formed on the front and rear sides of the linkage column portion in the main pressing member (7). The circular groove (11) includes a first vertical groove (1101), a spiral groove (1102), a second vertical groove (1103) and an arc groove (1104). The head end of the first vertical groove (1101) is communicated with the tail end of the spiral groove (1102), the head end of the spiral groove (1102) is communicated with the tail end of the second vertical groove (1103), the head end of the second vertical groove (1103) is communicated with the tail end of the arc groove (1104), and the head end of the arc groove (1104) is communicated with the tail end of the first vertical groove (1101); Among them, the circular groove (11) is connected to the pin bolt member (12) in a sliding manner, and the pin bolt member (12) is fixedly connected to the sleeve portion of the auxiliary pressing member (8) by bolts.

6. The nickel electroplating solution ultrafiltration system according to claim 2, characterized in that: Liquid supply channels (801) are formed in the auxiliary pressing member (8) in an annular array with its center as the center of the circle. The upper ports of the liquid supply channels (801) are correspondingly communicated with the gap between the narrow portion of the auxiliary pressing member (8) and the cavity wall of the liquid extraction cavity in the main pressing member (7), and the lower ports of the liquid supply channels (801) are correspondingly communicated with the upper opening of the circulation channel (702); Among them, a valve rod member (13) for controlling its communication or closing is provided on the liquid supply channel (801). The valve rod member (13) forms a telescopic sliding structure on the auxiliary pressing member (8), and a return spring (14) is installed at the connection between the valve rod member (13) and the auxiliary pressing member (8).

7. The nickel electroplating solution ultrafiltration system according to claim 6, wherein: First, second and third sealing rings are fixedly clamped on the wide portion of the valve rod member (13) from top to bottom. A communication hole (1301) is formed between the first and second sealing rings in the valve rod member (13), and the communication hole (1301) is connected to the liquid supply channel (801) in a corresponding communication manner; Among them, the narrow portion of the valve rod member (13) is connected to the lower side wall of the tube shell portion in the top end cover (2) in a pressing and fitting manner.

8. A nickel electroplating solution ultrafiltration system according to claim 1, characterized in that: A liquid outlet channel (1501) is formed in the middle of the assembly seat (15). The upper port of the liquid outlet channel (1501) is hermetically inserted into the filter element body (4), and the side port of the liquid outlet channel (1501) is correspondingly communicated with the liquid outlet pipe in the bottom end cover (3).

Images