A high-reliability sealed water outlet device

Abstract

The novel high-reliability sealed water outlet device comprises a water distribution plate, a water distribution plate lower cover and a water outlet body; an annular welding groove is arranged on the water distribution plate, the welding groove comprises a groove bottom, a first blocking wall and a second blocking wall located on both sides of the groove bottom; the water distribution plate lower cover and the water outlet body are respectively provided with annular first and second welding ends, the first and second welding ends are adapted to be inserted into the welding groove, the first blocking wall limits the first welding end in the radial direction, and the second blocking wall limits the second welding end in the radial direction; the first welding end and the groove bottom are ultrasonically welded to form an annular first welding sealing interface, and the second welding end and the groove bottom are ultrasonically welded to form an annular second welding sealing interface. The novel water outlet device has the characteristics of simplified structure and high-reliability sealing.

Description

Technical Field

[0001] This invention relates to the field of sealing technology for fluid transport devices, specifically to a highly reliable sealing water outlet device. Background Technology

[0002] A water dispensing device (taking a common aerator as an example) is typically a small, integrated module with a complex internal structure, containing multiple components that integrate various water dispensing functions. There are assembly gaps between these components, and the device needs to operate under certain water pressure. Therefore, preventing water leakage from these gaps is crucial to ensuring product performance and safe use. The traditional solution is to place sealing rings (usually O-rings) at the mating interfaces of the components. These O-rings are compressed to create elastic deformation, filling the gaps and achieving a seal. A single water dispensing device may require multiple (e.g., 3-5 or more) sealing rings.

[0003] Although the use of sealing rings is the mainstream practice in the industry, existing technologies propose the use of welded seals to achieve more permanent and reliable seals or to simplify the assembly process. For example, see Chinese Patent Document 202021492117.3, which discloses a rotary switching water outlet device, including a water distribution plate upper cover, a water distribution plate lower cover, and a water distribution plate partition, which uses a welded seal to isolate the diversion channel.

[0004] However, those skilled in the art have found in actual research and development and application that due to defects in the structural design of existing water outlet devices, welding seals are difficult to achieve ideal results in actual production, which easily leads to unreliable sealing, low product qualification rate, and difficulty in achieving large-scale reliable production.

[0005] In view of this, the applicant conducted in-depth research on the above-mentioned problems and proposed a highly reliable sealed water outlet device that can solve the aforementioned technical problems, thus giving rise to this case. Summary of the Invention

[0006] The purpose of this invention is to provide a highly reliable and sealed water outlet device, which features a simplified structure and highly reliable sealing.

[0007] To achieve the above objectives, the novel solution is as follows:

[0008] A highly reliable sealed water outlet device includes a water distribution plate partition, a water distribution plate lower cover, and a water outlet body. The water distribution plate partition is provided with an annular welding groove, which includes a groove bottom, a first baffle wall on each side of the groove bottom, and a second baffle wall. The water distribution plate lower cover and the water outlet body are respectively provided with an annular first welding end and a second welding end, which are adapted to be inserted into the welding groove. The first baffle wall radially limits the first welding end, and the second baffle wall radially limits the second welding end. The first welding end and the groove bottom are ultrasonically welded to form an annular first welded sealing interface, and the second welding end and the groove bottom are ultrasonically welded to form an annular second welded sealing interface.

[0009] The first welding sealing interface extends to the area where the first welding end mates with the first baffle; the second welding sealing interface extends to the area where the second welding end mates with the second baffle.

[0010] The second welding end and the first welding end are nested together, with the end face of the second welding end being flush with the end face of the first welding end; the first welding sealing interface and the second welding sealing interface are integrated.

[0011] The first weld sealing interface and / or the second weld sealing interface include a melting zone formed by in-situ melting of the raw material and a fusion zone formed by the overflow of the raw material to the periphery.

[0012] The lower cover of the water distribution plate is nested inside the water outlet body, and a stepped surface is provided between the water outlet body and the lower cover of the water distribution plate to provide axial support.

[0013] A first positioning groove and a first positioning block are provided between the first welding end and the second welding end to prevent mutual circumferential rotation.

[0014] The outer side of the second welding end is provided with a second positioning block, the height of which is lower than the end face of the second welding end; the side wall of the welding groove is provided with a second positioning groove that cooperates with the second positioning block, and the bottom of the second positioning groove does not extend to the bottom of the welding groove.

[0015] The water outlet device also includes a water distribution plate cover, which has a water distribution hole and an annular groove surrounding the water distribution hole. The water distribution plate is provided with an annular insertion end protruding towards the water distribution plate cover. The annular insertion end is adapted to be inserted into the annular groove and together with the annular groove forms a water distribution path. The end face of the annular insertion end and the bottom of the annular groove are ultrasonically welded to form an annular third welded sealing interface.

[0016] After adopting the above solution, the advantages of this new high-reliability sealed water outlet device compared to the prior art are as follows:

[0017] I. This novel water outlet device uses a welded groove structure to simultaneously cooperate with the first welded end and the second welded end to form two annular welded sealing interfaces, which is equivalent to achieving double sealing on a single physical structure, greatly improving the overall sealing reliability and stability.

[0018] Second, this new type integrates two seals into one welding groove, which has a compact structure, high integration, simplifies the overall structural design, reduces the number of parts and assembly complexity, and optimizes space utilization.

[0019] Third, this new type of seal achieves high reliability through an integrated structure. Compared with the existing schemes that use multiple independent sealing rings or design multiple complex sealing structures, it eliminates the need for sealing rings and has good sealing performance and stability. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the water outlet device;

[0021] Figure 2 This is a cross-sectional exploded view of the water outlet device;

[0022] Figure 3 The structure of the water distribution plate cover Figure 1 ;

[0023] Figure 4 The structure of the water distribution plate cover Figure 2 ;

[0024] Figure 5 Partial cross-sectional view of this novel water outlet device Figure 1 ;

[0025] Figure 6 This is a partial exploded view of the structure of this novel water outlet device;

[0026] Figure 7 This is a schematic diagram of the structure of the partition in the water distribution plate of this novel invention;

[0027] Figure 8 Partial cross-sectional view of this novel water outlet device Figure 2 .

[0028] Label Explanation

[0029] Fluid flow assembly 100, water outlet 101, water distribution plate assembly 200, water outlet body assembly 300;

[0030] Water distribution plate upper cover 1, water distribution hole 1A, water distribution hole 1B, water distribution hole 1C, water distribution hole 1D, annular groove 11, groove bottom 110, first side wall 111, second side wall 112; water distribution plate partition 2, welding groove 21, groove bottom 210, first baffle wall 211, second baffle wall 212, second positioning groove 213, annular plug end 22, end face 220; water distribution plate lower cover 3, first welding end 31, end face 310, stepped surface 311, first positioning groove 312; water outlet 4, inner flow channel 401, outer flow channel 402, second welding end 41, end face 410, stepped surface 411, first positioning block 412, second positioning block 413; rectifier 5; first welded sealing interface H1, second welded sealing interface H2, third welded sealing interface H3. Detailed Implementation

[0031] The following detailed explanation of the specific implementation method will be provided.

[0032] The structure and working principle of the relevant water outlet device (specifically the aerator) involved in this case are as follows.

[0033] like Figure 1-4 As shown, the water outlet device mainly consists of a fluid flow assembly 100, a water distribution plate assembly 200, and a water outlet assembly 300 connected sequentially along the water flow direction. Among them, the water distribution plate assembly 200 and the water outlet assembly 300 are fixedly assembled and can rotate together relative to the fluid flow assembly 100, thereby realizing the switching of different water spray patterns.

[0034] The fluid flow assembly 100 is provided with a water outlet 101. The water distribution plate assembly 200 includes a water distribution plate upper cover 1, a water distribution plate middle partition 2, and a water distribution plate lower cover 3 arranged sequentially along the axial direction. The water distribution plate upper cover 1 is provided with four independent water distribution holes (water distribution hole 1A, water distribution hole 1B, water distribution hole 1C, and water distribution hole 1D), which correspond to four independent water outlet channels. The water outlet body assembly 300 mainly includes a water outlet body 4 and a rectifier 5; the water outlet body 4 is provided with an inner flow channel 401 and an outer flow channel 402, and the rectifier 5 is installed in the inner flow channel 51.

[0035] By rotating the water distribution plate assembly 200 and the water outlet assembly 300, the water outlet 101 of the fluid flow assembly 100 can be aligned and connected with any designated water distribution hole on the upper cover 1 of the water distribution plate, thereby guiding the water flow into the corresponding water outlet path and realizing four different water outlet modes:

[0036] (1) When the water outlet 101 is aligned with the water distribution hole 1A, the first water outlet mode is formed (see Figure 1 (Water flow route A), the water flows sequentially through the first water distribution hole 1A, the water distribution plate partition 2, the water distribution plate lower cover 3, and the rectifier 5 in the inner flow channel 401 before flowing out.

[0037] (2) When the water outlet 101 is aligned with the water distribution hole 1B, a second water outlet mode is formed (see Figure 1 (B water flow route), after the water flows through the water distribution hole 1B, it enters the channel formed by the water distribution plate cover 1 and the water distribution plate partition 2, and finally flows out from the outer flow channel 402 of the water outlet body 4.

[0038] (3) When the water outlet 101 is aligned with the water distribution hole 1C, a third water outlet mode is formed. After the water flows through the water distribution hole 1C, it passes through the water distribution path formed by the water distribution hole 1C extending directly downward (see Figure 1 (C label) flowed out.

[0039] (4) When the water outlet 101 is aligned with the water distribution hole 1D, a fourth water outlet mode is formed. After the water flows through the water distribution hole 1D, it passes through the water distribution path formed by the water distribution hole 1D extending directly downward (see Figure 1 (The D label) was leaked.

[0040] This case involves a highly reliable, sealed water outlet device, such as... Figure 5-8 As shown, it includes a water distribution plate partition 2, a water distribution plate lower cover 3, and a water outlet body 4.

[0041] The water distribution plate 2 is provided with an annular welding groove 21, which includes a groove bottom 210, a first baffle wall 211 and a second baffle wall 212 located on both sides of the groove bottom 210. The lower cover 3 of the water distribution plate is provided with an annular first welding end 31, and the water outlet 4 is provided with an annular second welding end 41. The first welding end 31 and the second welding end 41 are adapted to be inserted into the welding groove 21. The first baffle wall 211 radially limits the first welding end 31, and the second baffle wall 212 radially limits the second welding end 41. The end face of the first welding end 31 and the groove bottom 210 are ultrasonically welded to form an annular first welding sealing interface H1, and the end face of the second welding end 41 and the groove bottom 210 are ultrasonically welded to form an annular second welding sealing interface H2.

[0042] This novel design forms a first welded sealing interface H1 and a second welded sealing interface H2 between the water distribution plate partition 2, the water distribution plate lower cover 3, and the water outlet body 4, thereby achieving an effective sealing effect among the three components and ensuring that the A water flow path and the B water flow path are mutually sealed and independent.

[0043] This novel water outlet device utilizes a welding groove 21 structure to simultaneously engage with both the first welding end 31 and the second welding end 41. The welding groove 21, composed of a bottom 210, a first baffle 211, and a second baffle 212, forms a robust whole. During ultrasonic welding, the welding groove 21 concentrates and precisely guides the welding energy to the welding area at the bottom 210, ensuring efficient energy utilization and more evenly distributing residual welding stress, reducing the risk of seal failure due to stress concentration. Therefore, ultrasonic welding using this structure can simultaneously form two high-quality annular welded sealing interfaces (H1, H2), effectively achieving a double seal on a single physical structure. This avoids insufficient or over-welded welding caused by energy dispersion, significantly improving the welding yield and greatly enhancing the overall sealing reliability and stability.

[0044] The welding groove 21 is a U-shaped groove formed by the groove bottom 210, the first baffle 211 and the second baffle 212. During assembly, it plays a natural guiding and preliminary positioning role for the insertion of the first welding end 31 and the second welding end 41, thus simplifying the assembly process and making the assembly and welding operations faster and more reliable.

[0045] This novel design integrates two seals into a single welding groove 21, resulting in a compact structure with high integration. This simplifies the overall structural design, reduces the number of parts and assembly complexity, and optimizes space utilization. Compared to existing solutions that use multiple independent sealing rings or design multiple complex sealing structures, this novel design achieves dual sealing through an integrated structure, eliminating the need for multiple sealing rings.

[0046] In a preferred embodiment, the first welding sealing interface H1 extends to the area where the first welding end 31 mates with the first baffle 211; the second welding sealing interface H2 extends to the area where the second welding end 41 mates with the second baffle 212.

[0047] The welded sealing interface is formed not only between the welded end (first welded end 31 / second welded end 41) and the bottom of the tank 210, but also extends to the mating area between the welded end (first welded end 31 / second welded end 41) and the baffle (first baffle 211 / second baffle 212). Specifically, it forms an axial seal by the mating of the bottom of the tank 210 and the end face of the welded end, and a radial seal by the mating of the baffle and the side of the welded end, with the axial and radial seals together constituting a composite sealing interface. This achieves a three-dimensional seal from the end face to the side, effectively blocking more potential leakage paths and improving the reliability and stability of the seal.

[0048] The radial upper baffle (first baffle 211 / second baffle 212) is matched with the side of the welding end. The structural design itself has a certain gap tolerance, which is conducive to the initial assembly of the two and the welding process after assembly. The melting and flow of the material can fill the small dimensional tolerances, thus ensuring that the sealing quality can still be maintained in mass production.

[0049] In a preferred embodiment, the second welding end 41 and the first welding end 31 are nested together, with the end face of the second welding end 41 being flush with the end face of the first welding end 31; the first welding sealing interface H1 and the second welding sealing interface H2 are integrated.

[0050] The design of the second welding end 41 nesting with the first welding end 31 and having flush end faces allows the molten plastic material to be connected into a whole in the bottom 210 area of ​​the groove during ultrasonic welding, thus forming a seamless and integrated sealing interface. This improves the mechanical connection strength and sealing integrity. In use, the integrated sealing interface can also make the internal stress distribution more uniform, thereby further improving the stability and reliability of long-term sealing.

[0051] In a preferred embodiment, the first welding sealing interface H1 and / or the second welding sealing interface H2 include a melting zone (the middle region in the radial direction of the bottom of the tank 210) formed by the in-situ melting of the raw material, and a fusion zone (the two sides of the bottom of the tank 210 in the radial direction near the first baffle 211 / second baffle 212) formed by the overflow of the raw material to the periphery.

[0052] The melting zone and the fusion zone work together to ensure sealing strength while adapting to dimensional tolerances and deformations, filling all microscopic unevenness, especially the corner position between the bottom of the groove 210 and the baffle (first baffle 211 / second baffle 212), achieving true all-round, dead-angle-free microscopic sealing and maintaining an effective and long-term sealing effect.

[0053] In a preferred embodiment, the lower cover 3 of the water distribution plate is nested within the water outlet body 4, and the water outlet body 4 and the lower cover 3 of the water distribution plate are provided with mutually cooperating stepped surfaces (step 311 and step 411) to provide axial support. This stepped surface cooperation structure provides robust axial support for the welding process, preventing the lower cover 3 of the water distribution plate from shifting or deforming under welding pressure, ensuring a uniform welding gap, and thus ensuring the formation of a high-quality, defect-free welded sealing interface.

[0054] Preferred solutions, such as Figure 6As shown, a first positioning groove 312 and a first positioning block 412 are provided between the first welding end 31 and the second welding end 41 to prevent mutual circumferential rotation. The structure of the first positioning groove 312 and the first positioning block 412 prevents circumferential rotation between the first welding end 31 and the second welding end 41, eliminates the risk of damage to the welding sealing interface due to relative movement of internal parts, and improves product stability.

[0055] Preferred solutions, such as Figure 6 As shown, a second positioning block 413 protrudes from the outer side of the second welding end 41, and the height of the second positioning block 413 is lower than the end face of the second welding end 41. A second positioning groove 213, which mates with the second positioning block 413, is provided on the side wall of the welding groove 21. The bottom of the second positioning groove 213 does not extend to the bottom 211 of the welding groove 21. The mating of the second positioning block 413 and the second positioning groove 213 ensures the correct relative position of the water outlet 4 and the water distribution plate partition 2 in the circumferential direction, achieving error-proof assembly and avoiding welding failure due to assembly errors.

[0056] The design of the second positioning block 213 being lower than the second welding end 41 and the second positioning groove 213 not extending to the bottom 210 cleverly separates the positioning function from the sealing function. This prevents the positioning structure from damaging the complete annular welding groove 21, ensuring the continuity of the welding sealing interface and thus guaranteeing the ultimate sealing effect.

[0057] For the preferred solution, please refer to [link / reference]. Figure 4 and Figure 8 As shown, the water outlet device also includes a water distribution plate cover 1, which has a water distribution hole 1A and an annular groove 11 surrounding the water distribution hole 1A. The annular groove 11 includes a groove bottom 110, a first sidewall 111 located on both sides of the groove bottom 110, and a second sidewall 112. The water distribution plate partition 2 has an annular insertion end 22 protruding towards the water distribution plate cover 1; the annular insertion end 22 is adapted to be inserted into the annular groove 11 and together with the annular groove 11 forms a water distribution path (the water outlet path corresponding to the A water flow path). The end face 220 of the annular insertion end 22 and the groove bottom 110 of the annular groove 11 are ultrasonically welded to form an annular third welded sealing interface H3.

[0058] This new type of water outlet device adopts a sealing structure of welding groove and welding end, and is also applied to the connection with the upper cover 1 of water distribution plate. This realizes the unification of the sealing technology solution of water outlet device, simplifies production and mold design, and ensures the same high sealing stability of all connection points of the entire product.

[0059] In a preferred embodiment, the third welded sealing interface H3 extends to the area where the two sides of the annular insertion end 22 mate with the two side walls (first side wall 111 and second side wall 112) of the annular groove 11. Similarly, an axial seal formed by end face mating and a radial seal formed by side mating are created, with the axial and radial seals together constituting a composite sealing interface. This achieves a three-dimensional seal from the end face to the side, effectively blocking more potential leakage paths and improving sealing reliability and stability. The radial upper side wall mates with the side, and the structural design itself has a certain clearance tolerance, which facilitates the initial assembly of the two and the welding process after assembly. The melting and flow of the material can fill small dimensional tolerances, thus ensuring a high degree of consistent sealing quality even in mass production.

[0060] In a preferred embodiment, the third welded sealing interface H3 includes a melting zone (the central region radially in the bottom of the tank 110) formed by the in-situ melting of the raw material, and a fusion zone (the two radially adjacent regions of the bottom of the tank 110 near the first sidewall 111 / second sidewall 112) formed by the overflow of the raw material to the periphery. Similarly, the melting zone and the fusion zone work together to ensure sealing strength while adapting to dimensional tolerances and deformations, filling all microscopic unevenness, especially the corner positions between the bottom of the tank 110 and the sidewalls (first sidewall 111 / second sidewall 112), achieving true all-round, dead-angle-free microscopic sealing and maintaining an effective and long-term sealing effect.

[0061] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

1. A highly reliable, sealed water outlet device, characterized in that: The device includes a water distribution plate partition, a water distribution plate lower cover, and a water outlet. The water distribution plate partition has an annular welding groove, which includes a groove bottom, a first baffle wall on each side of the groove bottom, and a second baffle wall. The water distribution plate lower cover and the water outlet are respectively provided with an annular first welding end and a second welding end, which are adapted to be inserted into the welding groove. The first baffle wall radially limits the first welding end, and the second baffle wall radially limits the second welding end. The first welding end and the groove bottom are ultrasonically welded to form an annular first welding sealing interface, and the second welding end and the groove bottom are ultrasonically welded to form an annular second welding sealing interface.

2. The highly reliable sealed water outlet device as described in claim 1, characterized in that: The first welding sealing interface extends to the area where the first welding end mates with the first baffle; the second welding sealing interface extends to the area where the second welding end mates with the second baffle.

3. The highly reliable sealed water outlet device as described in claim 1, characterized in that: The second welding end and the first welding end are nested together, with the end face of the second welding end being flush with the end face of the first welding end; the first welding sealing interface and the second welding sealing interface are integrated.

4. The highly reliable sealed water outlet device as described in claim 1, characterized in that: The first weld sealing interface and / or the second weld sealing interface include a melting zone formed by in-situ melting of the raw material and a fusion zone formed by the overflow of the raw material to the periphery.

5. The highly reliable sealed water outlet device as described in claim 1, characterized in that: The lower cover of the water distribution plate is nested inside the water outlet body, and a stepped surface is provided between the water outlet body and the lower cover of the water distribution plate to provide axial support.

6. The highly reliable sealed water outlet device as described in claim 1, characterized in that: A first positioning groove and a first positioning block are provided between the first welding end and the second welding end to prevent mutual circumferential rotation.

7. The highly reliable sealed water outlet device as described in claim 1, characterized in that: The outer side of the second welding end is provided with a second positioning block, the height of which is lower than the end face of the second welding end; the side wall of the welding groove is provided with a second positioning groove that cooperates with the second positioning block, and the bottom of the second positioning groove does not extend to the bottom of the welding groove.

8. The highly reliable sealed water outlet device as described in claim 1, characterized in that: The water outlet device also includes a water distribution plate cover, which has a water distribution hole and an annular groove surrounding the water distribution hole. The water distribution plate is provided with an annular insertion end protruding towards the water distribution plate cover. The annular insertion end is adapted to be inserted into the annular groove and together with the annular groove forms a water distribution path. The end face of the annular insertion end and the bottom of the annular groove are ultrasonically welded to form an annular third welded sealing interface.

9. A highly reliable sealed water outlet device as described in claim 8, characterized in that: The third welding sealing interface extends to the area where the annular insertion end mates with the side walls of the annular groove.

10. A highly reliable sealed water outlet device as described in claim 8, characterized in that: The third welding sealing interface includes a melting zone formed by in-situ melting of the raw material and a fusion zone formed by the overflow of the raw material to the periphery.

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