Water feeding mechanism for gush kettle

Abstract

The water feeding mechanism for the gushing kettle comprises a water outlet inner pipe with a water outlet hole, an upper water inlet cover and a cap type deformable cover cap installed between the water outlet inner pipe and the upper water inlet cover, the cap type deformable cover cap comprises a cap body and an annular cap brim, and a positioning protruding column matched with the cap body is arranged in the center of the upper top of the water outlet inner pipe. The cap type deformable cap is positioned in the center of the upper top of the water outlet inner pipe through the positioning protruding column, the water outlet holes are distributed in the coverage range of the annular cap brim, and after water injection is stopped, the annular cap brim of the cap type deformable cap seals the water outlet holes and seals the hollow cavity at the same time. And the water outlet hole is controllably opened and closed by adopting a cap-type deformable cap. The cap type deformable cap is fixed in the center of the upper top of the water outlet inner pipe through matching of the cap body and the positioning protruding column, and the stability of the center of the cap type deformable cap is guaranteed. And the problems of untight sealing and leakage caused by deflection and offset of the sealing plug are effectively avoided.

Description

Technical Field

[0001] The utility model relates to an electric kettle, in particular to a water supply mechanism of a spring-type electric kettle. Background Art

[0002] In daily life, electric kettles are essential household appliances in modern kitchens and living rooms because they boil water quickly and conveniently. They are suitable for brewing tea, coffee, beverages, etc. The automatic water-filling kettle is more popular with consumers due to its unique water outlet method. The thermostat is an important component of the spring-type electric kettle. The thermostat used in the spring-type electric kettle currently has a poor sealing effect on the connection of the water inlet pipe and the water outlet pipe, which is easy to cause leakage. The thermostat is currently installed with a water outlet pipe. An umbrella-shaped sealing plug is generally used to seal the water outlet hole and the water outlet pipe at the top of the water outlet pipe. The umbrella-shaped sealing plug is inserted on the top wall of the water outlet inner pipe. The umbrella-shaped sealing plug can be limited and slidable along the axial direction of the hollow chamber of the water outlet pipe through the umbrella handle. In order to achieve smooth sliding, there must be a certain diameter difference between the umbrella handle and the hollow chamber of the water outlet pipe. In actual applications, there is a problem of skewed and offset umbrella-shaped sealing plugs, which has the hidden dangers of sliding jamming and the umbrella surface cannot completely cover the water outlet hole after skewness and poor sealing. Summary of the invention

[0003] The utility model provides a water supply mechanism for a spring water kettle which has good sealing effect, safety and high stability.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a water supply mechanism for a spring water kettle, which includes a lower water inlet assembly installed in the central channel of the lower electrical connector and connected to a water pumping device, and an upper water inlet assembly installed in the central channel of the upper electrical connector, wherein the upper water inlet assembly includes an inner water outlet tube with a hollow chamber and an upper top opening with a water outlet hole connected to the inner cavity of the kettle body, a hollow rubber sealing sleeve fixed at the lower port of the inner water outlet tube and receiving the inner water outlet tube and the lower water inlet pipe of the lower water inlet assembly respectively, an upper water inlet cover fixed on the top of the inner water outlet tube by a sealing pressure ring, and a cap-type deformable cover cap installed between the inner water outlet tube and the upper water inlet cover. , a valve core that can be sealably matched with the hollow rubber sealing sleeve in the hollow chamber, and a spring that abuts between the top wall in the hollow chamber and the valve core. The hat-type deformable cap includes a cap body and an annular brim. The top center of the water outlet inner tube is provided with a positioning boss that matches the cap body. The hat-type deformable cap is positioned at the top center of the water outlet inner tube by the positioning boss. The water outlet hole is opened on the top of the water outlet inner tube close to the positioning boss. The water outlet holes are distributed within the coverage range of the annular brim, that is, the coverage area of ​​the annular brim is larger than the distribution area of ​​the water outlet holes. After the water injection is stopped, the annular brim of the hat-type deformable cap covers the water outlet hole and seals the hollow chamber at the same time.

[0005] As an improvement: the cap body of the hat-type deformable cap is in a hollow top shape, that is, the cap body is an annular cap crown, and a plurality of limiting bosses are integrally formed on the peripheral wall of the positioning boss, and the lower bottom surface of the limiting boss presses against the upper top of the opening of the annular cap crown of the hollow top-shaped cap body, so that the hollow top-shaped cap body is restricted in the upper position on the positioning boss.

[0006] As an improvement: the cap body of the hat-type deformable cap is in a hollow top shape, that is, the cap body is an annular cap crown, and the column wall of the positioning boss is provided with an inwardly concave annular groove, and the annular groove cooperates with the annular cap crown to achieve the limitation of the cap body on the positioning boss.

[0007] As an improvement: the cap body of the hat-type deformable cap is a cap body with a top, and the cap body with a top is covered on the top of the positioning boss, and the inner cavity formed by the cap body with a top partially or completely accommodates the positioning boss, and the inner top surface of the upper water inlet cover is pressed on the upper top surface of the cap body with a top, so as to limit the cap body of the hat-type deformable cap on the top center of the water outlet inner pipe.

[0008] As an improvement: the peripheral wall of the cap body with a top is provided with a ring or a plurality of rings which are folded outwards and protruded and have elasticity.

[0009] As an improvement: a plurality of ridges are distributed on the peripheral wall of the positioning boss, and the cap body is positioned on the positioning boss by the interference fit of the ridges with the cap body.

[0010] As an improvement, the thickness of the outermost edge of the annular brim is smaller than the thickness of the inner lining of the brim.

[0011] As an improvement: the rubber sealing sleeve includes an outer wall that seals with the inner wall of the water outlet inner pipe, and an inner ring wall that extends upward from the bottom of the outer wall inside the outer wall. The outer wall of the inner ring wall and the inner wall of the outer wall have a gap in the free state, and the lower part of the inner ring wall forms a lower socket channel that is adapted to the lower water pipe and for the lower water pipe to be inserted. Under the action of the spring, the valve core has a sealed state and an open state. In the sealed state, the valve core forms a sealed partition with the upper part of the inner ring wall through the spring. In the open state, the valve core is separated from the upper part of the inner ring wall to form a water outlet gap.

[0012] The beneficial effects provided by the utility model are as follows: the water outlet hole on the water outlet inner tube of the upper water injection assembly is controllably opened and closed by a hat-type deformable cap. When injecting water, the water flow in the water outlet inner tube pushes up the annular brim, causing the annular brim to lift up and deform away from the distribution area of ​​the water outlet hole, that is, the water outlet hole is opened to form a spring water injection port; after stopping the water injection, the annular brim of the hat-type deformable cap is deformed and reset, sealing the water outlet hole and the hollow chamber at the same time. The hat-type deformable cap is fixed at the top center position of the water outlet inner tube by the cooperation of the cap body and the positioning boss, ensuring the center stability of the hat-type deformable cap. This makes the annular brim move smoothly, quickly and accurately during the deformation process, and the seal is tight. It effectively avoids the problems of poor sealing and leakage caused by the skewed offset of the sealing plug.

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a first embodiment of a water supply mechanism for a spring kettle of the utility model.

[0015] Figure 2 yes Figure 1 Schematic diagram of the explosion structure.

[0016] Figure 3 It is a structural schematic diagram of a second embodiment of the water supply mechanism for a spring kettle of the utility model.

[0017] Figure 4 yes Figure 3 Schematic diagram of the explosion structure.

[0018] Figure 5 It is a structural schematic diagram of a third embodiment of the water supply mechanism for a spring kettle of the utility model.

[0019] Figure 6 yes Figure 5 Schematic diagram of the explosion structure.

[0020] Figure 7 It is a structural schematic diagram of a fourth embodiment of the water supply mechanism for a spring kettle of the utility model.

[0021] Figure 8 yes Figure 7 Schematic diagram of the explosion structure.

[0022] Fig. 9 It is a structural schematic diagram of a fifth embodiment of the water supply mechanism for a spring kettle of the utility model.

[0023] Fig.10 yes Fig. 9 Schematic diagram of the explosion structure.

[0024] Fig.11It is a structural schematic diagram of a sixth embodiment of the water supply mechanism for a spring kettle of the utility model.

[0025] Fig.12 yes Fig.11 Schematic diagram of the explosion structure. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present invention. In the description of the present invention, it should be understood that the terms "connected", "connected", "fixed" and the like used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a welding connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in the field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1 , Figure 2 As shown, the first embodiment of the water supply mechanism for a spring water kettle of the utility model, the spring water kettle comprises a kettle body and a power socket, the bottom of the kettle body is connected to a base, a pumping device connected to a water source is installed in the power socket, a central mounting hole is opened at the bottom of the base, an upper electrical connector is installed in the base inside the central mounting hole, a lower electrical connector which is plugged and matched with the upper electrical connector and forms an electrical connection is fixed on the power socket, the water supply mechanism for a spring water kettle of the utility model comprises a lower water inlet assembly and an upper water inlet assembly, the lower water inlet assembly is installed in the central channel of the lower electrical connector, the lower water inlet assembly comprises a lower water inlet pipe whose one end is connected to the pumping device, the upper water inlet assembly is installed in the central channel of the upper electrical connector, and water is supplied to the inner cavity of the kettle body through the pumping device, the lower water inlet assembly and the upper water inlet assembly.

[0028] The upper water inlet assembly comprises an inner water outlet tube 1 with a hollow chamber and an upper top opening for a water outlet hole communicating with the inner cavity of the kettle body, a hollow rubber sealing sleeve 5 fixedly arranged at the lower port of the inner water outlet tube and receiving the inner water outlet tube 1 and the lower water inlet pipe of the lower water inlet assembly respectively, an upper water inlet cover 9 fixed on the top of the inner water outlet tube 1 by a sealing pressure ring 8, a hat-type deformable cover 3 installed between the inner water outlet tube 1 and the upper water inlet cover 9, a valve core 4 which can be sealably matched with the hollow rubber sealing sleeve 5 in the hollow chamber, and a spring 2 which abuts between the top wall of the hollow chamber and the valve core 4. The valve core in this embodiment is a steel ball. Of course, other forms of valve cores can also be matched with the hollow rubber sealing sleeve as needed.

[0029] The hat-type deformable cap 3 includes a cap body 31 and an annular brim 32. The top center of the water outlet inner tube 1 is provided with a positioning boss 11 adapted to the cap body 31. The hat-type deformable cap 3 is positioned at the top center of the water outlet inner tube 1 through the positioning boss 11. The water outlet hole 12 is opened on the top of the water outlet inner tube 1 close to the positioning boss 11. The water outlet holes are distributed within the coverage range of the annular brim 32, that is, the coverage area of ​​the annular brim 32 is larger than the distribution area of ​​the water outlet holes. After the water injection is stopped, the annular brim 32 of the hat-type deformable cap 3 covers the water outlet holes and seals the hollow chamber at the same time. The hat-type deformable cap 3 is made of soft material.

[0030] The hat-type deformable cap 3 of this embodiment adopts a cap body with a top. That is, the cap body 31 of the hat-type deformable cap 3 is a cap body with a top, and the cap body with a top is covered on the top of the positioning protrusion 11. The inner cavity formed by the cap body with a top completely accommodates the positioning protrusion 11. The inner top surface of the upper water inlet cover 9 is pressed on the upper top surface of the cap body with a top. The top surface of the cap body of this embodiment is respectively pressed by the upper water inlet cover and supported by the top of the positioning protrusion 11. The cap body 31 of the hat-type deformable cap 3 is stably positioned on the top center of the water outlet inner tube 1. Of course, in order to ensure the stable position during the assembly process and the consistency of mass-produced products, the diameter of the top of the positioning protrusion 11 can also be slightly larger than or equal to the inner cavity diameter of the cap body with a top. The hat-type deformable cap 3 of this embodiment does not have the stroke problem of the existing umbrella-shaped seal, and does not have the problem that the existing umbrella-shaped seal is difficult to assemble due to the anti-detachment part of the umbrella handle. This embodiment is easy to assemble, accurate in position, and highly stable.

[0031] The utility model uses the cap body to limit the position of the cap-shaped deformable cap 3 installed on the top center of the water outlet inner tube 1. The annular brim 32 can be generally in the shape of an open bowl, and the coverage area of ​​the annular brim 32 is larger than the distribution area of ​​the water outlet holes. After the water injection is completed, the cap-shaped deformable cap 3 is deformed to cover the water outlet holes and seal the hollow chamber at the same time under the influence of the upper water pressure; when the water is injected, the water flow in the water outlet inner tube pushes up the annular brim, so that the annular brim is lifted and deformed away from the distribution area of ​​the water outlet holes, that is, the water outlet holes are opened to form a spring water injection port. For the tightness of the sealing under the coverage of the annular brim 32, the outermost edge thickness of the annular brim 32 is less than the inner thickness of the brim, and the edge thickness can be gradually changed to adapt to the coverage surface to increase the width of the sealing contact surface, and at the same time, it is conducive to deformation and improves sensitivity. The deformation of the annular brim 32 can be an edge lifting deformation or an upward deformation.

[0032] The rubber sealing sleeve 5 of this embodiment includes an outer wall 51 that is sealed with the inner wall of the water outlet inner pipe 1, and an inner ring wall 52 that extends upward from the bottom of the outer wall. The outer wall of the inner ring wall 52 and the inner wall of the outer wall 51 have a gap in the free state. The lower part of the inner ring wall 52 forms a lower socket channel that is adapted to the lower water pipe (not shown in the figure) and for the lower water pipe to be inserted. The upper part of the inner ring wall 52 is a bowl-shaped supporting ring. The upper free inner surface of the supporting ring is a spherical arc surface that is adapted to the surface of the steel ball valve core 4. The supporting ring is partially or completely arranged higher than the outer wall 51. Under the action of the spring 2, the valve core 4 has a sealing state and an open state. In the sealing state, the valve core 4 forms a sealed partition with the upper part of the inner ring wall 52 through the spring 2. In the open state, the valve core 4 is separated from the upper part of the inner ring wall 52 to form a water outlet gap. The center of the lower water inlet pipe orifice is provided with a top column that protrudes from the lower water inlet pipe and does not close the pipe orifice. The height of the top column protruding from the lower water inlet pipe orifice is less than the length of the lower socket channel. When the lower electrical connector and the upper electrical connector are fully coupled, that is, the lower water inlet pipe orifice is deeply inserted into the lower socket channel of the inner ring wall 52, the inner wall of the lower socket channel forms a sealed connection with the outer wall of the lower water inlet pipe, and the top column pushes up the valve core 4, so that the valve core 4 overcomes the elastic force of the spring 2 and separates from the upper part of the inner ring wall 52 to form a water outlet gap, and the valve core enters the open state in the hollow chamber of the water outlet inner tube 1.

[0033] Since the rubber sealing sleeve and the steel ball valve core 4 are used in coordination to achieve stable water supply and outstanding sealing effect, the upper socket of the rubber sealing sleeve and the steel ball form a single seal, and the lifting part of the lifting ring contacts the surface of the steel ball to achieve a double seal. When the rubber sealing sleeve is used for a long time or the single seal is damaged, the lifting part of the lifting ring can effectively ensure the sealing. At the same time, the lifting part of the lifting ring also plays a role in preventing the steel ball from falling excessively. Furthermore, the rubber sealing sleeve has high processing precision, simple structure, no need for secondary processing and demoulding, convenient processing, and better sealing stability. In order to enable the sealing sleeve to accurately limit the position, facilitate assembly, and effectively improve the matching performance with the water outlet pipe, the outer periphery of the outer wall 51 is also provided with an upturned ring wall 54 that turns up from the bottom of the outer wall 51 to the outside, and the lower end of the pipe wall of the water outlet inner pipe 1 is provided with a limiting step adapted to the upturned ring wall 54.

[0034] like Figure 3 , Figure 4 The second embodiment of the water supply mechanism for the spring kettle of the utility model is shown. On the basis of the first embodiment, a plurality of ridges 14 are integrally formed on the peripheral wall of the positioning boss 11. The plurality of ridges 14 of this embodiment are evenly distributed along the circumference at vertical intervals. The cap body is positioned on the positioning boss 11 through the interference fit of the ridges 14 on the cap body 31, and the cap-type deformable cover 3 can be conveniently assembled on the pre-positioning boss 11, which is beneficial to the discharge of air in the inner cavity of the cap body during assembly, and the connection is tighter. At the same time, the axial deformation of the cap body during assembly is reduced to ensure consistency in mass production.

[0035] like Figure 5 , Figure 6 The third embodiment of the water supply mechanism for the spring kettle of the utility model is shown, and its difference from the second embodiment is that the inner cavity formed by the top hat body of the hat-type deformable cap 3 of this embodiment partially accommodates the positioning boss 11, and the cap peripheral wall in the middle section of the top hat body is provided with a ring or a plurality of rings folded outwardly and protruding and having elastic raised ring 33, the inner top surface of the upper water inlet cover 9 is pressed on the upper top surface of the top hat body, so that the hat-type deformable cap 3 is limited in position, because the inner top surface of the upper water inlet cover 9 and the upper top surface of the top hat body are plane abutment limit, so that the center of the hat-type deformable cap 3 is maintained, and the elastic raised ring 33 and the partially contained structural setting not only leave space for the upward deformation of the annular brim, but also make the annular brim as a whole movable up and down, which can meet the water outlet requirements of large-flow equipment.

[0036] Of course, the hat-type deformable cap 3 with a top cap body can also be provided with a convex core (not shown in the figure) at the top center of the cap body, and a depression adapted to the convex core can be provided at the center of the top surface of the positioning boss 11 to facilitate center alignment, thereby doubly ensuring the alignment and balanced connectivity of the hat-type deformable cap 3.

[0037] like Figure 7 , Figure 8The fourth embodiment of the water supply mechanism for the spring kettle of the utility model is shown; Fig. 9 , Fig.10 The fifth embodiment of the water supply mechanism for the spring kettle of the utility model is shown as well as Fig.11 , Fig.12 The sixth embodiment of the water supply mechanism for the spring water kettle of the utility model shown in the figure adopts a cap-type deformable cap 3 with a hollow top-shaped cap body 31, that is, the cap body is an annular cap crown, and a plurality of limiting bosses 15 are integrally formed on the peripheral wall of the positioning boss 11, and the plurality of limiting bosses 15 are protrudingly arranged on the peripheral wall of the positioning boss 11 and evenly distributed along the periphery, and the lower bottom surface of the limiting boss 15 presses against the upper top of the opening of the annular cap crown of the hollow top-shaped cap body 31, so that the hollow top-shaped cap body 31 is restricted in the upper position on the positioning boss, and the slipping of the cap-type deformable cap 3 is effectively avoided. Compared with the cap-type deformable cap with a top cap body, the cap-type deformable cap with a hollow top-shaped cap body 31 has no strict requirements on the distance between the upper top of the positioning boss 11 and the lower bottom surface of the upper water inlet cover, has low requirements on structural compactness, and the hollow top design can save costs. The fourth, fifth and sixth embodiments adopt the structure in the hollow chamber of the water outlet inner tube 1 of the upper water inlet assembly as described in the first embodiment and other component designs, which will not be described repeatedly.

[0038] Of course, in addition to the upper limiting method of the limiting boss 15, the fixation of the hollow-top deformable cap on the positioning boss can also adopt an embedded limiting connection structure (not shown in the figure), such as the following scheme: the column wall of the positioning boss 11 is provided with a concave annular groove, and the annular crown is embedded in the annular groove. The upper and lower walls formed by the concave annular groove respectively press against the upper and lower outer edges of the annular crown to form a limit, thereby realizing the limit connection of the cap body on the positioning boss. The embedded matching structure can limit the movement of the annular crown up and down. Compared with the deformable cap with only upper limit, it has slightly lower flexibility, but higher stability.

[0039] The difference between the fourth, fifth and sixth embodiments is that the fifth embodiment increases the length of the annular crown on the basis of the fourth embodiment, thereby strengthening the support of the cap body, enlarging the connection surface between the annular crown and the positioning boss 11, and stabilizing the connection, thereby improving the impact resistance of the entire cap-type deformable cap 3.

[0040] The sixth embodiment is based on the fifth embodiment, and a plurality of ridges 14 are integrally formed on the peripheral wall of the positioning boss 11 below the limiting boss 15. The plurality of ridges 14 are vertically spaced and evenly distributed along the circumference. The ridges 14 can prevent air from entering between the connecting surface of the annular crown and the positioning boss 11, enhance the close fit between the annular crown and the positioning boss 11, and ensure consistency in mass production.

[0041] Although the utility model has been disclosed as above in terms of specific embodiments, it is not intended to limit the utility model. Any technician in this field can make slight changes and modifications without departing from the spirit and scope of the utility model. Therefore, the scope of protection of the utility model should be determined by the scope of the attached claims.

Claims

1. A water supply mechanism for a spring kettle, comprising a lower water supply assembly installed in the central channel of a lower electrical connector and connected to a water pumping device, and an upper water supply assembly installed in the central channel of an upper electrical connector, characterized in that: The upper water inlet assembly comprises an inner water outlet tube (1) with a hollow chamber and an upper top opening for a water outlet hole communicating with the inner cavity of the kettle body, a hollow rubber sealing sleeve (5) fixedly arranged at the lower end of the inner water outlet tube and receiving the inner water outlet tube (1) and the lower water inlet tube (10) of the lower water inlet assembly respectively at the upper and lower ends, an upper water inlet cover (9) fixed to the top of the inner water outlet tube (1) via a sealing pressure ring (8), a cap-type deformable cap (3) installed between the inner water outlet tube (1) and the upper water inlet cover (9), a valve core (4) in the hollow chamber that can sealably cooperate with the hollow rubber sealing sleeve (5), and a spring (2) abutting between the top wall of the hollow chamber and the valve core (4). The cap (3) comprises a cap body (31) and an annular brim (32); the center of the upper top of the water outlet inner tube (1) is provided with a positioning convex column (11) adapted to the cap body (31); the cap-type deformable cap (3) is positioned at the center of the upper top of the water outlet inner tube (1) by means of the positioning convex column (11); the water outlet hole (12) is opened on the upper top of the water outlet inner tube (1) close to the positioning convex column (11); the water outlet holes are distributed within the coverage range of the annular brim (32), that is, the coverage area of ​​the annular brim (32) is larger than the distribution area of ​​the water outlet holes; after water injection is stopped, the annular brim (32) of the cap-type deformable cap (3) covers the water outlet holes and seals the hollow chamber at the same time.

2. The water supply mechanism for a spring kettle according to claim 1, characterized in that: The cap body (31) of the cap-shaped deformable cap (3) is in the shape of a hollow top, that is, the cap body is an annular cap crown, and a plurality of limiting bosses (15) are integrally formed on the peripheral wall of the positioning boss (11), and the lower bottom surface of the limiting boss (15) presses against the upper top of the annular cap crown opening of the hollow top-shaped cap body (31), so that the hollow top-shaped cap body (31) is restrained in the upper position on the positioning boss.

3. The water supply mechanism for a spring kettle according to claim 1, characterized in that: The cap body (31) of the cap-shaped deformable cap (3) is in the shape of a hollow top, that is, the cap body is an annular cap crown, and the column wall of the positioning boss (11) is provided with an inwardly concave annular groove, and the annular groove is engaged with the annular cap crown to achieve the limiting of the cap body on the positioning boss (11).

4. The water supply mechanism for a spring kettle according to claim 1, characterized in that: The cap body (31) of the hat-type deformable cap (3) is a cap body with a top, and the cap body with a top is arranged on the top of the positioning convex column (11). The inner cavity formed by the cap body with a top partially or completely accommodates the positioning convex column (11). The inner top surface of the upper water inlet cover (9) is pressed onto the upper top surface of the cap body with a top, so that the cap body (31) of the hat-type deformable cap (3) is limited on the top center of the water outlet inner pipe (1).

5. The water supply mechanism for a spring kettle according to claim 4, characterized in that: The peripheral wall of the cap body with a top is provided with a ring or a plurality of rings which are folded outwards and protruded and have elasticity.

6. The water supply mechanism for a spring water kettle according to claim 1, 2, 3 or 4, characterized in that: A plurality of ridges (14) are distributed on the peripheral wall of the positioning convex column (11), and the cap body is positioned on the positioning convex column (11) by means of interference fit of the ridges (14) on the cap body (31).

7. The water supply mechanism for a spring water kettle according to claim 1, 2, 3, 4 or 5, characterized in that: The thickness of the outermost edge of the annular brim (32) is smaller than the thickness of the inner lining of the brim.

8. The water supply mechanism for a spring kettle according to claim 6, characterized in that: The thickness of the outermost edge of the annular brim (32) is smaller than the thickness of the inner lining of the brim.

9. The water supply mechanism for a spring water kettle according to claim 1, 2, 3, 4 or 5, characterized in that: The rubber sealing sleeve comprises an outer wall (51) which is sealed with the inner wall of the water outlet inner pipe (1), and an inner ring wall (52) which extends upward from the bottom of the outer wall. The outer wall of the inner ring wall (52) and the inner wall of the outer wall (51) have a gap in a free state. The lower part of the inner ring wall (52) forms a lower socket channel which is adapted to the lower water inlet pipe and for the lower water inlet pipe to be inserted. Under the action of the spring (2), the valve core (4) has a sealing state and an open state. In the sealing state, the valve core (4) forms a sealing partition with the upper part of the inner ring wall (52) through the spring (2). In the open state, the valve core (4) is separated from the upper part of the inner ring wall (52) to form a water outlet gap.

10. The water supply mechanism for a spring kettle according to claim 6, characterized in that: The rubber sealing sleeve comprises an outer wall (51) which is sealed with the inner wall of the water outlet inner pipe (1), and an inner ring wall (52) which extends upward from the bottom of the outer wall. The outer wall of the inner ring wall (52) and the inner wall of the outer wall (51) have a gap in a free state. The lower part of the inner ring wall (52) forms a lower socket channel which is adapted to the lower water inlet pipe and for the lower water inlet pipe to be inserted. Under the action of the spring (2), the valve core (4) has a sealing state and an open state. In the sealing state, the valve core (4) forms a sealing partition with the upper part of the inner ring wall (52) through the spring (2). In the open state, the valve core (4) is separated from the upper part of the inner ring wall (52) to form a water outlet gap.

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