Sealing structure of water inlet valve

Abstract

The utility model relates to the technical field of water inlet valves, in particular to a water inlet valve sealing structure which comprises a valve body, a connecting portion is arranged on one side of the valve body, a water inlet pipe connector is connected to the connecting portion, a connecting plug is arranged at the end, connected with the connecting portion, of the water inlet pipe connector, the connecting plug extends into the connecting portion and is provided with an inner sealing ring in a surrounding mode, and the inner sealing ring is connected with the water inlet pipe connector. An annular notch is formed in the edge opening of the connecting part, an outer sealing ring is arranged in the annular notch in the edge opening of the connecting part, balance rings are symmetrically arranged outside the edge opening of the connecting part, and the inner walls of the balance rings are attached to the upper side and the lower side of the outer end of the connecting plug respectively. According to the water inlet valve sealing structure, through the innovative double-layer sealing structure design, the sealing effect when the water inlet valve is connected with the water pipe is enhanced, water leakage is effectively prevented, and the service life of the washing machine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water inlet valves, in particular to a water inlet valve sealing structure. Background Art

[0002] With the continuous advancement of home appliance technology, consumers have higher and higher requirements for the performance of washing machines, especially the durability, water-saving efficiency and maintenance convenience of washing machines. Among the core components of washing machines, the water inlet valve plays a vital role, which is responsible for controlling the inlet and outlet of water and directly affects the efficiency and reliability of the washing process.

[0003] Currently, the sealing structure of the washing machine water inlet valve on the market mostly relies on a single sealing ring. Although this design is simple in structure and easy to install, it is easy to cause water leakage during long-term use due to factors such as water pressure fluctuations, scale accumulation and aging of the sealing ring material. This not only affects the normal operation of the washing machine, but may also cause damage to electrical components and increase users' maintenance costs. Utility Model Content

[0004] The purpose of the utility model is to provide a water inlet valve sealing structure to solve the problem that the sealing structure of the current washing machine water inlet valve mostly relies on a single sealing ring, which can meet short-term use needs, but is prone to water leakage due to factors such as water pressure fluctuations, scale accumulation and aging of the sealing ring material.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water inlet valve sealing structure, comprising a valve body, a connecting portion is provided on one side of the valve body, a water inlet pipe joint is connected to the connecting portion, a plug joint is provided at one end of the water inlet pipe joint connected to the connecting portion, the plug joint extends into the interior of the connecting portion and is surrounded by an inner sealing ring, and an annular recess is provided at the edge of the connecting portion, an outer sealing ring is provided in the annular recess at the edge of the connecting portion, and a balancing ring is symmetrically provided on the outside of the edge of the connecting portion, and the inner walls of the balancing ring are respectively fitted to the upper and lower sides of the outer end of the plug joint.

[0006] Preferably, fixed sleeves are provided on both upper and lower sides of the outer end of the connecting portion, a transverse axis is inserted into the interior of the fixed sleeve, and the outer end of the transverse axis is fixedly connected to the middle of the balance ring through a connecting block.

[0007] Preferably, the balance rings are all arc-shaped structures, and elastic silicone pads are provided on the inner walls of the balance rings.

[0008] Preferably, a plurality of protrusions are arranged around the annular recess at the edge of the connecting portion, and a plurality of clamping grooves matching the protrusion structure are arranged around the inner side of the outer sealing ring.

[0009] Preferably, connecting sleeves are provided on both sides of the balancing ring, and connecting shafts are interspersed between the connecting sleeves in the same group, and elastic rings are provided on the outer sides of the upper and lower ends of the connecting shafts.

[0010] Preferably, both upper and lower sides of the inner end of the connecting part are connected with fixing screws through a threaded structure, and a pressure block is fixed to one end of the fixing screw located inside the connecting part, and both upper and lower sides of the inner end of the plug connector are provided with grooves matching the pressure block structure.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the water inlet valve sealing structure enhances the sealing effect when the water inlet valve is connected to the water pipe through the innovative double-layer sealing structure design, effectively prevents water leakage, and increases the service life of the washing machine. The water inlet valve sealing structure significantly enhances the sealing performance of the valve body through the double-layer design of the inner sealing ring and the outer sealing ring, and the innovative balance ring design. The inner ring adopts a durable material for basic sealing, and the outer ring adopts a high elastic material for auxiliary sealing. Even if the inner ring is damaged, the outer ring can still effectively block the leak and maintain the seal, and the balance ring can automatically adjust to the water pressure change, protect the sealing ring from pressure shock, and effectively and stably seal against water pressure fluctuations, significantly reducing the risk of water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a water inlet valve sealing structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the connection structure of the balance ring and the plug connector of a water inlet valve sealing structure of the utility model;

[0014] Figure 3 This is a schematic structural diagram of the outer end side view of the connection portion of a water inlet valve sealing structure of the utility model;

[0015] Figure 4 The utility model is a schematic diagram of the inner structure of an outer sealing ring of a water inlet valve sealing structure.

[0016] In the figure: 1. valve body; 2. connecting part; 21. convex block; 3. water inlet pipe joint; 4. plug joint; 5. balance ring; 6. outer sealing ring; 61. clamping groove; 7. inner sealing ring; 8. fixed sleeve; 9. horizontal axis; 10. fixing screw; 11. pressure block; 12. elastic silicone pad; 13. connecting sleeve; 14. connecting shaft; 15. elastic ring. DETAILED DESCRIPTION

[0017] 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 without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4The utility model provides a technical solution: a water inlet valve sealing structure, including a valve body 1, a connecting part 2 is provided on one side of the valve body 1, a water inlet pipe joint 3 is connected to the connecting part 2, a plug joint 4 is provided at one end of the water inlet pipe joint 3 connected to the connecting part 2, the plug joint 4 extends into the interior of the connecting part 2 and is surrounded by an inner sealing ring 7, and an annular recess is provided at the edge of the connecting part 2, an outer sealing ring 6 is provided in the annular recess at the edge of the connecting part 2, and a balancing ring 5 is symmetrically provided on the outside of the edge of the connecting part 2, and the inner walls of the balancing ring 5 are respectively attached to the upper and lower sides of the outer end of the plug joint 4. This structure significantly improves the sealing reliability of the valve body 1 through the double-layer sealing design of the inner sealing ring 7 and the outer sealing ring 6, wherein the inner sealing ring 7 serves as a primary seal and is tightly attached to the plug joint 4 The interface with the connecting part 2 is made of high-performance materials that are resistant to high temperatures and aging, ensuring that moisture penetration is effectively isolated at the basic level and meeting the basic sealing requirements in daily use. The outer sealing ring 6 is arranged on the outside of the inner sealing ring 7 and is made of highly elastic material with excellent compensation ability. Even if the inner sealing ring 7 has tiny cracks or wear over time, the outer sealing ring 6 can immediately play a role to block potential gaps and ensure the long-term effectiveness of the seal. At the same time, the two balance rings 5 ​​can be close to the outer end of the plug connector 4, dynamically respond to changes in water pressure, and adjust their own shape in time to balance the pressure difference between the inlet and outlet of the water, effectively alleviating the impact and deformation of the sealing ring caused by sudden changes in water pressure, further consolidating the stability of the sealing structure, and greatly reducing the sealing failure caused by external pressure fluctuations. The risk of efficiency is eliminated. A fixed sleeve 8 is welded and fixed on both the upper and lower sides of the outer end of the connecting part 2. A horizontal axis 9 is inserted inside the fixed sleeve 8, and the outer end of the horizontal axis 9 is welded and fixed to the middle of the balancing ring 5 through a connecting block. The connection between the fixed sleeve 8 and the horizontal axis 9 can be fixed by screws. The horizontal axis 9 of this structure can be inserted and moved inside the fixed sleeve 8 and fixed by screws to achieve the effect of fine adjustment of the position of the balancing ring 5, so as to ensure that the balancing ring 5 fits accurately and maintains a good pressure balance effect regardless of how the water pressure changes. The balancing ring 5 is an arc-shaped structure, and an elastic silicone pad 12 is bonded and fixed to the inner wall of the balancing ring 5. The elastic silicone pad 12 of this structure, with its excellent resilience and durability, not only strengthens the sealing and filling of the fine gap around the plug connector 4, but also can In various working conditions, good sealing contact is continuously maintained, vibration is effectively absorbed, and the impact caused by sudden changes in water pressure is buffered. A plurality of protrusions 21 are arranged around the annular recess at the edge of the connecting portion 2, and a plurality of snap-in grooves 61 that match the structure of the protrusions 21 are arranged around the inner side of the outer sealing ring 6. When the outer sealing ring 6 of this structure is installed at the edge of the connecting portion 2, the snap-in grooves 61 can be precisely docked with the protrusions 21 to achieve stable installation and positioning, prevent displacement or sliding, and enhance the anti-displacement ability of the outer sealing ring 6 when subjected to water pressure changes, thereby maintaining the continuity and reliability of the seal. Connecting sleeves 13 are arranged on both sides of the balance ring 5, and connecting shafts 14 are interspersed between the same group of connecting sleeves 13, and elastic rings 15 are arranged on the upper and lower ends of the connecting shaft 14.In addition, both upper and lower ends of the connecting shaft 14 are connected to the limit block through a threaded structure. The balance ring 5 of this structure can be connected to each other through the connecting sleeve 13 and the connecting shaft 14 to achieve synchronous and coordinated movement in the horizontal direction. The elastic ring 15 not only plays a role in buffering and shock absorption, but also ensures the flexibility and stability of the connection between the connecting shaft 14 and the limit block, that is, it limits the movement range of the balance ring 5 within the allowed range, which not only ensures that the balance ring 5 can be flexibly adjusted with the change of water pressure, but also prevents structural damage caused by excessive displacement. The upper and lower sides of the inner end of the connecting part 2 are interlaced with fixed screws 10 through a threaded structure, and a pressure block 11 is fixed at one end of the fixed screw 10 located inside the connecting part 2, and the upper and lower sides of the inner end of the plug connector 4 are provided with grooves that match the pressure block 11 structure. The fixed screw 10 of this structure can adjust the position of the pressure block 11 through the threaded structure until it is embedded in the groove at the inner end of the plug connector 4. This not only ensures the precise alignment between the plug connector 4 and the connecting part 2, but also further enhances the sealing and stability of the plug connector 4.

[0019] Working principle: When using the water inlet valve sealing structure, firstly connect the water inlet pipe joint 3 with the connecting part 2 through the plug joint 4, ensure that the inner sealing ring 7 is tightly attached to the contact interface between the plug joint 4 and the connecting part 2, and use its high temperature resistance and anti-aging properties to achieve the initial sealing, then accurately connect the outer sealing ring 6 with the protrusion 21 through the clamping groove 61 and place it in the annular recess of the connecting part 2 to form a double-layer sealing barrier, and then fix it to the outer end of the connecting part 2 through the fixed sleeve 8 and insert the horizontal axis 9, the outer end of the horizontal axis 9 is welded and fixed to the balance ring 5 through the connecting block, and the connection between the fixed sleeve 8 and the horizontal axis 9 is adjusted with screws. The fine-tuning positioning of the balance ring 5 is realized, so that the balance ring 5 is symmetrically installed on the upper and lower sides of the outer end of the plug connector 4. Through its arc structure and the internal elastic silicone pad 12, the adaptability to water pressure changes and the sealing effect are enhanced. Then the balance ring 5 can be connected with the connecting shaft 14 through the connecting sleeve 13 to maintain synchronization and coordination in the horizontal direction. The elastic rings 15 at both ends of the connecting shaft 14 provide necessary buffering. Finally, the fixing screw 10 is screwed into the position of the adjustment block 11 through the threaded structure until the block 11 corresponds to the groove at the inner end of the plug connector 4, further enhancing the tightness and stability of the seal, thereby completing a series of tasks.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water inlet valve sealing structure, comprising a valve body (1), a connecting portion (2) being provided on one side of the valve body (1), a water inlet pipe joint (3) being connected to the connecting portion (2), characterized in that: A plug connector (4) is provided at one end of the water inlet pipe joint (3) connected to the connecting portion (2); the plug connector (4) extends into the interior of the connecting portion (2) and is surrounded by an inner sealing ring (7); an annular recess is provided at the edge of the connecting portion (2); an outer sealing ring (6) is provided in the annular recess at the edge of the connecting portion (2); and a balancing ring (5) is symmetrically provided outside the edge of the connecting portion (2); the inner wall of the balancing ring (5) is respectively fitted to the upper and lower sides of the outer end of the plug connector (4).

2. The water inlet valve sealing structure according to claim 1, characterized in that: A fixed sleeve (8) is provided on both upper and lower sides of the outer end of the connecting portion (2), a transverse axis (9) is inserted into the interior of the fixed sleeve (8), and the outer end of the transverse axis (9) is fixedly connected to the middle of the balance ring (5) through a connecting block.

3. The water inlet valve sealing structure according to claim 1, characterized in that: The balance rings (5) are all arc-shaped structures, and an elastic silicone pad (12) is provided on the inner wall of the balance ring (5).

4. The water inlet valve sealing structure according to claim 1, characterized in that: A plurality of protrusions (21) are arranged around the annular recess at the edge of the connecting portion (2), and a plurality of clamping grooves (61) that match the structure of the protrusions (21) are arranged around the inner side of the outer sealing ring (6).

5. The water inlet valve sealing structure according to claim 1, characterized in that: Both sides of the balancing ring (5) are provided with connecting sleeves (13), and connecting shafts (14) are inserted between the connecting sleeves (13) in the same group, and elastic rings (15) are sleeved on the upper and lower ends of the connecting shaft (14).

6. The water inlet valve sealing structure according to claim 1, characterized in that: The upper and lower sides of the inner end of the connecting portion (2) are both connected with fixing screws (10) through a threaded structure, and a pressure block (11) is fixed to one end of the fixing screw (10) located inside the connecting portion (2), and the upper and lower sides of the inner end of the plug connector (4) are both provided with grooves that match the structure of the pressure block (11).

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