Swivel joint for conveying special electroplating liquid
By using removable swivel joints made of ultra-high molecular weight polyethylene materials, the existing swivel joints are solved for contamination and complex structure when dealing with special electroplating solutions, achieving efficient corrosion protection and convenient use.
Patent Information
- Application Number
- CN202421611784.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-09
AI Technical Summary
Existing rotary joints are prone to contamination when dealing with electroplating solution with special pH and alkalinity and metal sensitive, and are large in weight, complex in structure, and difficult to disassemble and clean; while rotary joints made of ordinary plastic materials have poor strength and are prone to chemical reactions with electroplating solution.
The swivel joint made of ultra-high molecular weight polyethylene material includes an input joint, a first joint, a rotary joint rotor, a second joint and a fixture. It can be detachably connected in the conveying direction of the electroplating solution in turn, improving the convenience of assembly and cleaning, and improving sealing performance through a sealing ring.
It realizes effective corrosion prevention for special electroplating solutions, extends service life, ensures the quality of electroplating solutions, and improves the strength and convenience of use of joints.
Smart Images
Figure CN222687576U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electroplating equipment accessories, in particular to a rotary joint for conveying special electroplating liquid. Background Art
[0002] Plating solution refers to a liquid that can expand the cathode current density range of metals, improve the appearance of the coating, and increase the anti-oxidation stability of the solution. Currently, the commercially available rotary joints or swivel joints are divided into two types: metal and ordinary plastic. Although the rotary joints made of metal materials are high in strength and can withstand high pressure, they are not suitable for use in some special pH and metal-sensitive plating solutions, which can easily cause contamination to the plating solution. In addition, they are heavy and not suitable for handheld use. They also have a complex structure and are difficult to disassemble and clean. Although the rotary joints made of ordinary plastic materials are light in weight, they have poor strength and poor pressure bearing capacity. In addition, some plastics will also react chemically with special plating solutions, causing pollution. Utility Model Content
[0003] In order to solve the technical defects mentioned in the above background technology, the purpose of the utility model is to provide a rotary joint for conveying special electroplating liquid.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A rotary joint for conveying special electroplating liquid, comprising an input joint connected to an input pipe, a first joint connected to one end of the input joint, a rotary joint rotor, a second joint threadedly connected to one end of the rotary joint rotor, a joint shell arranged on the outer circumference of the first joint and the rotary joint rotor, and a fixing piece connected to the second joint; the input joint, the first joint, the joint shell, the rotary joint rotor, and the second joint are all made of ultra-high molecular weight polyethylene material and are internally connected; the end of the fixing piece away from the second joint is fixedly connected to an output pipe of the electroplating liquid; the joint shell is rotatably connected to the rotary joint rotor.
[0006] By adopting the above technical solution, the input joint, the first joint, the rotary joint rotor, the second joint, and the fixing part are detachably connected in the conveying direction of the electroplating solution, which is convenient for assembly and disassembly, has higher strength, and is more convenient to use and clean. In addition, the input joint, the first joint, the joint shell, the rotary joint rotor, and the second joint are made of ultra-high molecular weight polyethylene material, which can effectively prevent corrosion from special electroplating solutions, extend the service life, and ensure the quality of the electroplating solution.
[0007] Furthermore, one end of the first joint connected to the joint shell is provided with a slot, and one end of the joint shell is snapped into the slot. The other end of the joint shell is connected to a gland nut by a screw, and the inner side wall of the gland nut is threadedly connected to the outer peripheral side of the rotary joint rotor, which is convenient for installation and removal.
[0008] Furthermore, at least one first sealing ring is provided between the rotary joint rotor and the joint shell, and the first sealing ring is interference-connected between the outer peripheral side wall of the rotary joint rotor and the inner side wall of the joint shell to improve the sealing performance and prevent leakage of the electroplating solution.
[0009] Furthermore, a convex ring is provided at one end of the first joint and the input joint, and a joint nut is provided on the outer peripheral side of the convex ring and the outer peripheral side of the input joint. The convex ring is clamped inside one end of the joint nut, and the other end of the joint nut is threadedly connected to the input joint, so that the connection is more stable and easy to disassemble and assemble.
[0010] Furthermore, the inner diameter of the input connector is larger than the inner diameter of the first connector, so as to facilitate installation of the input pipe of the electroplating solution.
[0011] Furthermore, an annular second sealing ring is provided between the rotary joint rotor and the second joint, and between the joint housing and the first joint, to improve the sealing performance and prevent leakage of the electroplating solution.
[0012] Furthermore, the fixing piece is configured as a polyvinyl chloride resin structure to prevent corrosion and improve durability.
[0013] Furthermore, at least one set of screw holes is provided on the circumferential side of one end where the joint shell is connected to the first joint, and the joint shell and the first joint are fixedly connected to the screw holes by screw threads, thereby improving the stability and accuracy of installation.
[0014] In summary, the beneficial effects of the utility model are:
[0015] The utility model is detachably connected in the conveying direction of the electroplating solution through the input joint, the first joint, the rotary joint rotor, the second joint, and the fixing part, which is convenient to assemble and disassemble, has higher strength, and is more convenient to use and clean. In addition, the input joint, the first joint, the joint shell, the rotary joint rotor, and the second joint are made of ultra-high molecular weight polyethylene material, which can effectively prevent corrosion from special electroplating solutions, extend the service life, and ensure the quality of the electroplating solution. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The utility model is a schematic structural diagram of an embodiment of a rotary joint for conveying special electroplating liquid.
[0017] Figure 2 The utility model is a schematic cross-sectional structure diagram of an embodiment of a rotary joint for conveying special electroplating liquid.
[0018] Description of reference numerals in the figures:
[0019] 1. Rotary joint for conveying special electroplating solution; 2. Input joint; 3. First joint; 31. Convex ring; 4. Joint housing; 5. Rotary joint rotor; 6. Second joint; 7. Fixing piece; 8. Gland nut; 9. Joint nut; 10. First sealing ring; 11. Second sealing ring. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.
[0021] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.
[0022] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0023] The following is combined with Figure 1-2 , the embodiments of the utility model are further described in detail.
[0024] A rotary joint 1 for conveying special electroplating liquid, such as Figure 1 , Figure 2As shown, it includes an input joint 2 connected to an input pipe, a first joint 3 connected to one end of the input joint 2, a rotary joint rotor 5, a second joint 6 threadedly connected to one end of the rotary joint rotor 5, a joint shell 4 arranged on the outer circumference of the first joint 3 and the rotary joint rotor 5, and a fixing member 7 connected to the second joint 6. The input joint 2, the first joint 3, the joint shell 4, the rotary joint rotor 5, and the second joint 6 are all set to ultra-high molecular weight polyethylene materials and are connected inside. The end of the fixing member 7 away from the second joint 6 is fixedly connected to the output pipe of the electroplating solution. The joint shell 4 is rotatably connected to the rotary joint rotor 5.
[0025] Among them, the input joint 2, the first joint 3, the rotary joint rotor 5, the second joint 6, and the fixing part 7 are detachably connected in sequence along the conveying direction of the electroplating solution, and are convenient to assemble and disassemble, have higher strength, and are more convenient to use and clean. Moreover, the input joint 2, the first joint 3, the joint shell 4, the rotary joint rotor 5, and the second joint 6 are made of ultra-high molecular weight polyethylene material, which can effectively prevent corrosion from special electroplating solutions, extend the service life, and ensure the quality of the electroplating solution.
[0026] In this embodiment, please refer to Figure 2 One end of the first joint 3 connected to the joint housing 4 is provided with a slot, and one end of the joint housing 4 is snapped into the slot. The other end of the joint housing 4 is connected to the gland nut 8 by screws, and the inner side wall of the gland nut 8 is threadedly connected to the outer peripheral side of the rotary joint rotor 5, which is convenient for installation and removal.
[0027] The first joint 3 and one end of the input joint 2 are provided with a convex ring 31, and the outer peripheral side of the convex ring 31 and the outer peripheral side of the input joint 2 are provided with a joint nut 9, the convex ring 31 is clamped inside one end of the joint nut 9, and the end of the joint nut 9 is sealed and connected to the side of the convex ring 31. The other end of the joint nut 9 is threadedly connected to the input joint 2, and the connection is more stable and easy to disassemble and assemble.
[0028] The inner diameter of the input joint 2 is larger than the inner diameter of the first joint 3, so as to facilitate the installation of the input pipe of the electroplating solution. The inner diameters of the first joint 3, the rotary joint rotor 5 and the second joint 6 are set to be the same.
[0029] To improve sealing performance, please refer to Figure 2 At least one first sealing ring 10 is provided between the rotary joint rotor 5 and the joint housing 4. The first sealing ring 10 is interference-connected between the outer peripheral side wall of the rotary joint rotor 5 and the inner side wall of the joint housing 4 to improve the sealing performance and prevent leakage of the electroplating solution.
[0030] An annular second sealing ring 11 is provided between the rotary joint rotor 5 and the second joint 6 and between the joint housing 4 and the first joint 3 to improve the sealing performance and prevent leakage of the electroplating solution.
[0031] At least one set of screw holes is provided on the circumference of one end of the joint shell 4 connected to the first joint 3, and the joint shell 4 and the first joint 3 are fixedly connected to the screw holes by screw threads, thereby improving the stability and accuracy of installation. Specifically, two sets of screw holes are provided on the circumference of one end of the joint shell 4 connected to the first joint 3, and the connection is tighter.
[0032] In this embodiment, the fixing member 7 is configured as a cap-like structure to form a sealing structure with the second joint 6. An end of the fixing member 7 away from the second joint 6 is provided with an internal thread for connecting the output pipe of the electroplating solution. The fixing member 7 is configured as a polyvinyl chloride resin structure to prevent corrosion and improve durability. Specifically, UPVC plastic material can be used.
[0033] The input pipe of the electroplating solution is fixed to the input joint 2 and the joint nut 9, and the end face is sealed. The first joint 3 is threadedly connected to the joint housing 4, sealed with an O-type second sealing ring 11, and fixed with screws. The joint housing 4 and the rotary joint rotor 5 rotate relative to each other, and the two O-type first sealing rings 10 are sealed. The axial positioning of the joint housing 4 is limited by the gland nut 8. The second joint 6 is threadedly connected to the rotary joint rotor 5, sealed with an O-type second sealing ring 11, and screws are driven in to fix the second joint 6 and the rotary joint rotor 5. The fixing part 7 is used to fix the output pipe of the electroplating solution, and is sealed by the end face to prevent leakage.
[0034] In actual operation, the rotary joint rotor 5 can be easily rotated by holding the joint housing 4 with one hand and the second joint 6 with the other hand. The rotary joint as a whole can be manually disassembled and cleaned without the aid of tools. The pollution test, pressure test and height drop test all meet the requirements.
[0035] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A rotary joint (1) for conveying a special electroplating solution, characterized in that: The invention comprises an input joint (2) connected to an input pipe, a first joint (3) connected to one end of the input joint (2), a rotary joint rotor (5), a second joint (6) threadedly connected to one end of the rotary joint rotor (5), a joint shell (4) arranged on the outer circumference of the first joint (3) and the rotary joint rotor (5), and a fixing member (7) connected to the second joint (6); the input joint (2), the first joint (3), the joint shell (4), the rotary joint rotor (5), and the second joint (6) are all made of ultra-high molecular weight polyethylene material and are internally connected; the fixing member (7) is fixedly connected to the output pipe of the electroplating solution at one end away from the second joint (6); and the joint shell (4) is rotatably connected to the rotary joint rotor (5).
2. The rotary joint (1) for conveying special electroplating liquid according to claim 1, characterized in that: One end of the first joint (3) connected to the joint housing (4) is provided with a slot, and one end of the joint housing (4) is snapped into the slot; the other end of the joint housing (4) is connected to a gland nut (8) by means of screws, and the inner side wall of the gland nut (8) is threadedly connected to the outer peripheral side of the rotary joint rotor (5).
3. The rotary joint (1) for conveying special electroplating liquid according to claim 1, characterized in that: At least one first sealing ring (10) is provided between the rotary joint rotor (5) and the joint housing (4), and the first sealing ring (10) is interference-connected between the outer peripheral side wall of the rotary joint rotor (5) and the inner side wall of the joint housing (4).
4. The rotary joint (1) for conveying special electroplating liquid according to claim 1, characterized in that: A convex ring (31) is provided at one end of the first joint (3) and the input joint (2); a joint nut (9) is provided at the outer peripheral side of the convex ring (31) and the outer peripheral side of the input joint (2); the convex ring (31) is clamped inside one end of the joint nut (9); and the other end of the joint nut (9) is threadedly connected to the input joint (2).
5. The rotary joint (1) for conveying special electroplating liquid according to claim 4, characterized in that: The inner diameter of the input connector (2) is greater than the inner diameter of the first connector (3).
6. The rotary joint (1) for conveying special electroplating liquid according to claim 1, characterized in that: An annular second sealing ring (11) is provided between the rotary joint rotor (5) and the second joint (6), and between the joint housing (4) and the first joint (3).
7. The rotary joint (1) for conveying special electroplating liquid according to claim 1, characterized in that: The fixing member (7) is configured as a polyvinyl chloride resin structure.
8. The rotary joint (1) for conveying special electroplating liquid according to claim 1, characterized in that: At least one group of screw holes is provided on the circumferential side of one end of the joint shell (4) connected to the first joint (3); the joint shell (4) and the first joint (3) are fixedly connected to the screw holes by screw threads.