Fully-sealed floating ball device
By designing fully sealed magnetron assembly and sealing ring in the float device, the problem of magnetic ring corrosion failure in the prior art is solved, and a higher sealing and service life is achieved.
Patent Information
- Application Number
- CN202420903741.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The existing float devices are prone to magnetic ring corrosion failure during use, because laundry detergent seeps into the gap between the joint between the magnetic ring and the float, resulting in magnetic ring corrosion.
A fully sealed float device is designed. By setting a sealing ring and a receptacle cavity in the magnetron assembly, the strong magnetic ring is in a fully sealed environment, and the magnetron assembly and float are integrally injection molded to prevent laundry detergent from infiltration.
The sealing effect between the float and the magnetron assembly is achieved, which avoids the invasion of laundry detergent, extends the service life of the magnetic ring, and improves the stability and use effect of the device.
Smart Images
Figure CN222666326U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of floating balls, in particular to a fully sealed floating ball device used in a washing machine. Background Art
[0002] The water level switch in the washing machine monitors the water level by working with a foam float with a magnet. However, customers have reported that the automatic detergent dispensing function of the washing machine fails during use. The reason is that the existing float device consists of a magnetic ring, a magnetic ring bracket and a float. The magnetic ring set is fixed on the magnetic ring bracket and injection molded as an integral part with the float in the form of an insert. During the injection molding process, there may be a certain gap at the junction of the magnetic ring bracket and the float. Therefore, detergent will invade from the gap, causing the magnetic ring to be soaked in detergent for a long time, corroded and finally dissolved and failed. The structural design is unreasonable. Utility Model Content
[0003] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a fully sealed float device with reasonable structural design and capable of ensuring the sealing performance between the float and the magnetic ring.
[0004] The utility model adopts a technical solution to solve its technical problems, which is a fully sealed float device, the float device includes a float and a magnetic control component, the magnetic control component is injection-molded as an insert with the float, the magnetic control component includes a strong magnetic ring and a mounting bracket, the strong magnetic ring is fixed on the mounting bracket, the magnetic control component also includes a sealing ring that is sealed with the outer wall of the mounting bracket, a containing cavity is provided in the sealing ring, and the strong magnetic ring is arranged in the containing cavity.
[0005] The advantages of adopting the above technical solution are as follows: by providing a sealing ring with an accommodating cavity, and the sealing ring after being installed in place forms a sealing fit with the outer wall of the mounting bracket, the strong magnetic ring arranged in the accommodating cavity can achieve the purpose of being in a fully sealed environment, and then by adopting the overall method of being an insert and integrally injection-molded with the float, the stability of the full seal is made higher. Therefore, even if there is a gap between the float and the magnetic control component, the laundry detergent will be blocked by the sealing ring and will not flow into the accommodating cavity to cause corrosion to the strong magnetic ring. The overall structure is reasonable, and the use effect and service life of the product are also better.
[0006] Furthermore, the mounting bracket includes a shaft portion for fitting and fixing the strong magnetic ring, and a limiting ring portion surrounding the bottom wall of the shaft portion and limiting the strong magnetic ring. The shaft portion is provided with a shaft hole and a fastening boss is circumferentially provided on the outer wall surface.
[0007] The advantages of adopting the above technical solution are as follows: the position of the strong magnetic ring relative to the float is limited by the cooperation of the shaft, the limiting ring, the fastening boss and the strong magnetic ring. The position limitation effect is good during the process of injection molding the strong magnetic ring and the float. The setting of the shaft hole on the shaft reduces the weight of the mounting bracket, and the strong magnetic ring can be magnetized after being injection molded into one piece, so the magnetic effect of the strong magnetic ring will be better.
[0008] Furthermore, the sealing ring is provided with an upper ring opening and a lower ring opening which cooperate with the accommodating cavity, the lower side wall surface of the upper ring opening is tightly matched with the top end of the shaft portion, and the ring wall surface of the lower ring opening is tightly matched with the ring wall surface of the limiting ring portion.
[0009] The advantages of adopting the above technical solution are as follows: by setting corresponding upper ring openings and lower ring openings, the sealing cooperation between the sealing ring and the mounting bracket is more reasonable and stable, and it is also convenient to install and has a reasonable structural design.
[0010] Furthermore, an outwardly protruding upper ring edge portion is provided on the upper side wall surface of the sealing ring, and an outwardly protruding lower ring edge portion is provided on the lower side wall surface of the sealing ring.
[0011] The advantages of adopting the above technical solution are as follows: by providing corresponding upper ring edge parts and lower ring edge parts, the contact area between the sealing ring and the float is increased, so that the injection molding effect is better.
[0012] Furthermore, the float is configured to be cylindrical, and a first shoulder is provided at the outer periphery of the top of the float, the outer side surface of the first shoulder is configured to be an inclined surface inclined upward, and a plurality of limiting protrusions are provided on the bottom of the float.
[0013] The advantages of adopting the above technical solution are as follows: the setting of the first ring shoulder improves the floating effect of the float device, and the float is set to be cylindrical, and the outer side surface of the first ring shoulder is set to be an inclined surface inclined upward. This setting method makes the product appearance more beautiful, and a limiting protrusion is set at the bottom of the float to avoid strong adsorption with the carrier surface.
[0014] Furthermore, the upper part and the lower part of the float are respectively configured to be truncated cone-shaped and spherical, and the diameter of the upper part of the float is greater than the diameter of the lower part of the float.
[0015] The advantages of adopting the above technical solution are: without affecting the use effect of the product, the shape is relatively beautiful, and the spherical lower part makes the floating effect of the float device better, and there is no need to set additional limiting protrusions, and the structural design is reasonable.
[0016] Furthermore, a second shoulder is provided at the connection between the upper part and the lower part of the float, and the diameter of the second shoulder is between the diameters of the upper part and the lower part of the float.
[0017] The advantage of adopting the above technical solution is that the floating effect of the float device is better by providing a second ring shoulder with a diameter between the diameters of the upper part and the lower part of the float.
[0018] Furthermore, the strong magnetic ring is made of neodymium iron boron material, and the float, the mounting bracket, and the sealing ring are all made of polypropylene material.
[0019] Advantages of the above technical solution: The strong magnetic ring is made of neodymium iron boron material. After magnetization, its surface magnetism is 10 times that of weak magnetism. Polypropylene has good properties such as chemical resistance, heat resistance, and electrical insulation. After being made, it is a colorless, translucent thermoplastic lightweight general-purpose plastic with a beautiful shape. The overall shape is more conducive to working in special scenes and environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0021] Figure 2 Another schematic diagram of the overall structure of the utility model;
[0022] Figure 3 Another schematic diagram of the overall structure of the utility model;
[0023] Figure 4 It is a structural schematic diagram of the mounting bracket of the utility model;
[0024] Figure 5 It is a structural schematic diagram of the sealing ring of the utility model.
[0025] In the figure: 1-float, 2-strong magnetic ring, 3-mounting bracket, 4-sealing ring, 5-accommodating chamber, 6-shaft portion, 7-limiting ring portion, 8-shaft hole, 9-fastening boss, 10-upper ring mouth, 11-lower ring mouth, 12-upper ring edge portion, 13-lower ring edge portion, 14-first ring shoulder, 15-limiting protrusion, 16-second ring shoulder. DETAILED DESCRIPTION
[0026] In order to more clearly illustrate the embodiments of the utility model and / or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the orientation only represents the relative position relationship between the components, not the absolute position relationship.
[0027] See also Figures 1 to 5As shown, a fully sealed float device comprises a float 1 and a magnetic control component. The magnetic control component is integrally molded with the float 1 as an insert. The magnetic control component comprises a strong magnetic ring 2 and a mounting bracket 3. The strong magnetic ring 2 is sleeved on the mounting bracket 3. The magnetic control component further comprises a sealing ring 4 which is sealed with the outer wall of the mounting bracket 3. A receiving cavity 5 is arranged in the sealing ring 4. The strong magnetic ring 2 is arranged in the receiving cavity 5. By providing the sealing ring 4 with the receiving cavity 5 and the sealing ring 4 after being installed in place forms a sealing match with the outer wall of the mounting bracket 1, the strong magnetic ring 2 arranged in the receiving cavity 5 can achieve the purpose of being in a fully sealed environment. By adopting the method of integrally molding the float 1 as an insert, the stability of the full seal is higher. Therefore, even if there is a gap between the float 1 and the magnetic control component, the laundry detergent will be blocked by the sealing ring 4 and will not flow into the receiving cavity 5 to cause corrosion to the strong magnetic ring 2. The overall structure is reasonable, and the use effect and service life of the product are also better.
[0028] In this embodiment, the mounting bracket 3 includes a shaft portion 6 for fitting and fixing the strong magnetic ring 2, and a limiting ring portion 7 surrounding the bottom wall of the shaft portion 6 and limiting the strong magnetic ring 2. The shaft portion 6 is provided with an shaft hole 8 and a fastening boss 9 is circumferentially provided on the outer wall. The position of the strong magnetic ring 2 relative to the float 1 is limited by the cooperation of the shaft portion 6, the limiting ring portion 7, and the fastening boss 9 with the strong magnetic ring 2. The position limiting effect of the strong magnetic ring 2 is good during the process of injection molding the strong magnetic ring 2 and the float 1 into one piece. The setting of the shaft hole 8 on the shaft portion 6 reduces the weight of the mounting bracket 3, and also enables the strong magnetic ring 2 to be injected into one piece and then magnetized, so that the magnetic effect of the strong magnetic ring 2 will be better.
[0029] In this embodiment, the sealing ring 4 is provided with an upper ring opening 10 and a lower ring opening 11 which cooperate with the accommodating cavity 5. The lower side wall surface of the upper ring opening 10 is tightly matched with the top end of the shaft portion 6, and the ring wall surface of the lower ring opening 11 is tightly matched with the ring wall surface of the limiting ring portion 7. That is to say, the diameter of the upper ring opening 10 will be smaller than the diameter of the lower ring opening 11. With this arrangement, during installation, the strong magnetic ring 2 and the mounting bracket 3 can be matched with the sealing ring 4 from one side of the lower ring opening 11. At the same time, the sealing matching mode between the sealing ring 4 and the mounting bracket 1 is more reasonable and stable, and it is also convenient to install, and the structural design is reasonable.
[0030] In this embodiment, an outwardly protruding upper ring edge portion 12 is further provided on the upper side wall surface of the sealing ring 4, and an outwardly protruding lower ring edge portion 13 is further provided on the lower side wall surface of the sealing ring 4. By providing the corresponding upper ring edge portion 12 and lower ring edge portion 13, the contact area between the sealing ring 4 and the float 1 is increased, so that the injection molding effect is better.
[0031] In one of the embodiments, the float 1 is set to be cylindrical, and a first shoulder 14 is provided at the outer periphery of the top of the float 1, the outer side surface of the first shoulder 14 is set to be an inclined surface inclined upward, and a plurality of limiting protrusions 15 are provided on the bottom of the float 1. The setting of the first shoulder 14 improves the floating effect of the float device. The float 1 is set to be cylindrical, and the outer side surface of the first shoulder 14 is set to be an inclined surface inclined upward. This arrangement makes the product appearance more beautiful. By setting the limiting protrusion 15 at the bottom of the float 1, strong adsorption with the carrier surface can be avoided.
[0032] In one of the embodiments, the upper and lower parts of the float 1 are respectively configured to be truncated cone-shaped and spherical, and the upper diameter of the float 1 is larger than the lower diameter of the float. With this configuration, the shape is relatively beautiful without affecting the use effect of the product. At the same time, the spherical lower part makes the floating effect of the float device better, and there is no need to set an additional limiting protrusion, and the structural design is reasonable.
[0033] In the above embodiment, a second shoulder 16 is further provided at the connection between the upper and lower parts of the float 1, and the diameter of the second shoulder 16 is between the diameters of the upper and lower parts of the float 1. By providing the second shoulder 16 with a diameter between the diameters of the upper and lower parts of the float 1, the floating effect of the float device is improved.
[0034] In the above embodiments, the strong magnetic ring 2 is made of neodymium iron boron material. The strong magnetic ring 2 is made of neodymium iron boron material. After magnetization, its surface magnetism is 10 times that of weak magnetism. The float 1, the mounting bracket 3, and the sealing ring 3 are all made of polypropylene material. Polypropylene has good properties such as chemical resistance, heat resistance, and electrical insulation. After being made, it is a colorless, translucent thermoplastic lightweight general-purpose plastic with a beautiful shape. The overall structure is more conducive to working in special scenes and environments.
[0035] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.
Claims
1. A fully sealed float device, comprising a float (1) and a magnetic control component, wherein the magnetic control component is an insert and is integrally formed by injection molding with the float (1), wherein the magnetic control component comprises a strong magnetic ring (2) and a mounting bracket (3), wherein the strong magnetic ring (2) is sleeved on the mounting bracket (3), and wherein: The magnetron assembly further comprises a sealing ring (4) which is in sealing cooperation with the outer wall surface of the mounting bracket (3); a receiving cavity (5) is provided in the sealing ring (4); and the strong magnetic ring (2) is arranged in the receiving cavity (5).
2. A fully sealed float device according to claim 1, characterized in that: The mounting bracket (3) comprises a shaft portion (6) for fittingly fixing the strong magnetic ring (2), and a limiting ring portion (7) surrounding the bottom wall surface of the shaft portion (6) and limiting the position of the strong magnetic ring (2); the shaft portion (6) is provided with a shaft hole (8) and a fastening boss (9) is circumferentially provided on the outer wall surface.
3. A fully sealed float device according to claim 2, characterized in that: The sealing ring (4) is provided with an upper ring opening (10) and a lower ring opening (11) which cooperate with the accommodating cavity (5); the lower side wall surface of the upper ring opening (10) is tightly matched with the top end of the shaft portion (6); and the ring wall surface of the lower ring opening (11) is tightly matched with the ring wall surface of the limiting ring portion (7).
4. A fully sealed float device according to claim 3, characterized in that: An outwardly protruding upper ring edge portion (12) is also provided on the upper side wall surface of the sealing ring (4), and an outwardly protruding lower ring edge portion (13) is also provided on the lower side wall surface of the sealing ring (4).
5. A fully sealed float device according to claim 1, characterized in that: The float (1) is cylindrical, and a first shoulder (14) is provided at the outer periphery of the top of the float (1). The outer side surface of the first shoulder (14) is provided as an inclined surface inclined upward. The bottom of the float (1) is also provided with a plurality of limiting protrusions (15).
6. A fully sealed float device according to claim 1, characterized in that: The upper part and the lower part of the float (1) are respectively configured in a truncated cone shape and a spherical shape, and the diameter of the upper part of the float (1) is greater than the diameter of the lower part of the float (1).
7. A fully sealed float device according to claim 6, characterized in that: A second annular shoulder (16) is also provided at the connection between the upper part and the lower part of the float (1), and the diameter of the second annular shoulder (16) is between the diameters of the upper part and the lower part of the float (1).
8. A fully sealed float device according to claim 1, characterized in that: The strong magnetic ring (2) is made of neodymium iron boron material, and the float (1), the mounting bracket (3), and the sealing ring (4) are all made of polypropylene material.