High-sealing-performance top cover structure

Abstract

The utility model discloses a top cover structure with high sealing performance, which belongs to the technical field of electric kettles and comprises a top cover, a hollow rubber ring is arranged on the outer side of the top cover in a surrounding manner, and an air cavity is vertically formed in the middle of the inside of the top cover. The hollow rubber ring is arranged on the outer side of the top cover, the suction mechanism composed of the air cavity, the piston, the spring, the through hole, the pull rod and the pull block is arranged on the inner top of the top cover, and the hollow rubber ring is communicated with the interior of the air cavity through the guide hole, so that in the process that the pull block is held by hand to lift the top cover, the top cover can be conveniently sucked. Due to the gravity influence of the top cover, upward movement of a piston can be controlled, air in a hollow rubber ring is sucked into an air cavity, the hollow rubber ring is in a compressed state, the top cover can be conveniently taken out, after the top cover is placed, the air in the air cavity can be injected into the hollow rubber ring through the reset effect of a spring, and the air in the air cavity can be conveniently taken out. The hollow rubber ring is expanded to be attached to the inner wall of the kettle opening, and the sealing effect in the using process is improved.

Description

Technical Field

[0001] The utility model relates to a top cover structure, in particular to a high-sealability top cover structure, belonging to the technical field of electric kettles. Background Art

[0002] In the prior art, for example, a utility model with publication number 202123263775.2 discloses a high-sealing pot mouth sealing cover for an electric kettle. The high-sealing pot mouth sealing cover for the electric kettle can be equipped with an exhaust assembly. When high-temperature water vapor is generated in the kettle body, the top plate moves upward, driving the two sets of exhaust boxes to move, and then the high-temperature water vapor in the kettle body is discharged through the connecting holes, the conveying holes and the exhaust holes, effectively preventing the water from spraying from the spout due to excessive pressure inside the kettle body when pouring water at an angle; when there is no high-temperature water vapor in the kettle body, the inside of the kettle body is sealed by the top plate and the exhaust box, so that the water in the kettle body can be kept warm for a longer time, which is more convenient.

[0003] Similar to the above application, there are still some shortcomings:

[0004] The threaded outer side of the top cover improves the sealing effect of the top cover, but it is very inconvenient to disassemble and assemble the top cover for water filling during use. In order to facilitate the removal and water filling, the top cover currently does not have a threaded side, but is directly connected to the kettle in a plug-in manner. The sealing ring on the outer side of the top cover creates a certain resistance to the downward movement of the top cover, and the top cover needs to be pressed down after being placed on the kettle mouth, which is inconvenient to operate.

[0005] Therefore, a high sealing top cover structure is designed to optimize the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a top cover structure with high sealing performance, by arranging a hollow rubber ring on the outer side of the top cover, and arranging a suction mechanism composed of an air cavity, a piston, a spring, a through hole, a pull rod and a pull block on the inner top of the top cover, the hollow rubber ring is connected to the inside of the air cavity by using the guide hole, so that when the top cover is lifted by holding the pull block, the upward movement of the piston is controlled due to the influence of the gravity of the top cover, and the gas inside the hollow rubber ring is sucked into the inside of the air cavity, and the hollow rubber ring is in a compressed state, which is convenient for taking out the top cover, and after the top cover is placed, the gas inside the air cavity can be reset by the spring. Air is injected into the interior of the hollow rubber ring, which expands the hollow rubber ring and fits it against the inner wall of the pot mouth, thereby improving the sealing effect during use. Through the setting of the extrusion mechanism composed of the arc cover, the external screw, the pressure plate and the sealing ring, when the spring becomes elastically fatigued after a long period of use, the spring can be squeezed to ensure the reset effect of the piston during use, which is more practical. The setting of the pressure relief mechanism composed of the air holes on the side of the top cover, the limit ring, the sliding rod, the blocking block and the anti-slip block can relieve pressure when the water is boiling. After the pressure is stable, the top cover is sealed to reduce the heat dissipation rate and save more energy.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] A high-sealing top cover structure comprises a top cover, a hollow rubber ring is arranged around the outer side of the top cover, an air cavity is vertically opened at the middle position inside the top cover, a guide hole is arranged inside the top cover, two ends of the guide hole are respectively connected with the air cavity and the hollow rubber ring, a piston is vertically slidably arranged inside the air cavity, a pull rod connected with the outside of the top cover is arranged at the top of the air cavity, a spring is arranged between the top of the piston and the inner top of the air cavity, an extrusion mechanism is arranged at the top of the spring, a through hole is fixed on the top of the piston, the through hole passes through the spring and the pull rod, a pull block is fixed on the top of the through hole, and a pressure relief mechanism is arranged on the outer side of the top cover.

[0009] Preferably, the pull block is spherical in shape, and both sides of the pull block are provided with anti-slip grooves.

[0010] Preferably: the pressure relief mechanism includes an air hole, a limiting ring, a sliding rod, a blocking block and an anti-slip block, the air hole is opened on the side of the top cover, a limiting ring is horizontally fixed on the inner side of the air hole, a sliding rod is slidingly provided inside the limiting ring, a blocking block is fixed on the top end of the sliding rod, the inner side of the blocking block is in contact with the inner wall of the air hole, and an anti-slip block with a length greater than the inner diameter of the limiting ring is fixed on the bottom end of the sliding rod.

[0011] Preferably: a rubber ring is provided on the outer side of the blocking block, and the outer side of the rubber ring is in contact with the inner wall of the pore.

[0012] Preferably: the extrusion mechanism includes an arc cover, an external screw and a pressure plate, the arc cover is located on the top of the top cover, the through hole passes through the center of the arc cover, the bottom end of the arc cover is fixed with an external screw, the external screw is threadedly connected to the inner wall of the pull rod, the bottom end of the external screw is fixed with a pressure plate, and the bottom of the pressure plate fits with the top of the spring.

[0013] Preferably: a sealing ring is provided at the bottom of the arc-shaped cover, and the bottom of the sealing ring is in contact with the surface of the top cover.

[0014] Preferably, the outer side of the arc-shaped cover is provided with anti-slip grooves, and the outer side of the arc-shaped cover is provided with indicating arrows along the circumferential direction.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a high-sealing top cover structure, in which a hollow rubber ring is provided on the outer side of the top cover, and a suction mechanism composed of an air cavity, a piston, a spring, a through hole, a pull rod and a pull block is provided on the inner top of the top cover, and the hollow rubber ring is connected to the inside of the air cavity by using the guide hole, so that when the top cover is lifted by holding the pull block, the piston is controlled to move upward due to the gravity of the top cover, and the gas inside the hollow rubber ring is sucked into the inside of the air cavity, and the hollow rubber ring is in a compressed state, which is convenient for taking out the top cover, and after the top cover is placed, the air inside the air cavity can be injected into the inside of the hollow rubber ring through the resetting action of the spring, so that the hollow rubber ring is expanded to fit the inner wall of the pot mouth, thereby improving the sealing effect during use;

[0017] The arrangement of the extrusion mechanism consisting of the arc cover, the outer screw, the pressure plate and the sealing ring can ensure the reset effect of the piston during use by squeezing the spring when the spring is elastically fatigued after long-term use, which is more practical.

[0018] The pressure relief mechanism composed of the air holes on the side of the top cover, the limit ring, the sliding rod, the blocking block and the anti-falling block can relieve the pressure when the water is boiling. After the pressure stabilizes, the top cover will be sealed to reduce the heat dissipation rate and save more energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front cross-sectional view of the utility model;

[0020] Figure 2 For the utility model Figure 1 A magnified view of the structure at center;

[0021] Figure 3 For the utility model Figure 1 A magnified view of the structure at B in the middle;

[0022] Figure 4 It is a bottom view of the extrusion mechanism of the utility model.

[0023] In the figure: 1. top cover; 2. hollow rubber ring; 3. air cavity; 4. guide hole; 5. piston; 6. spring; 7. through hole; 8. pull rod; 9. pull block; 10. pressure relief mechanism; 11. air hole; 12. limit ring; 13. slide rod; 14. blocking block; 15. anti-slip block; 16. arc cover; 17. external screw; 18. pressure plate; 19. sealing ring. DETAILED DESCRIPTION

[0024] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0025] like Figure 1-Figure 4 As shown, this embodiment provides a high-sealing top cover structure, including a top cover 1, a hollow rubber ring 2 is arranged around the outer side of the top cover 1, an air cavity 3 is vertically opened at the middle position inside the top cover 1, a guide hole 4 is opened inside the top cover 1, two ends of the guide hole 4 are respectively connected with the air cavity 3 and the hollow rubber ring 2, a piston 5 is vertically slidably arranged inside the air cavity 3, a pull rod 8 connected with the outside of the top cover 1 is opened at the top of the air cavity 3, a spring 6 is arranged between the top of the piston 5 and the inner top of the air cavity 3, an extrusion mechanism is arranged on the top of the spring 6, a through hole 7 is fixed on the top of the piston 5, the through hole 7 passes through the spring 6 and the pull rod 8, a pull block 9 is fixed on the top of the through hole 7, and a pressure relief mechanism 10 is arranged on the outer side of the top cover 1.

[0026] The overall working principle is as follows: when the top cover 1 is opened, the handle block 9 moves upward. Since the top cover 1 has a certain weight, the piston 5 will move toward the top of the air cavity 3 during the lifting process, and the gas inside the hollow rubber ring 2 will be drawn into the air cavity 3. The outer diameter of the hollow rubber ring 2 will be reduced, so it will be convenient to lift it from the inside of the pot mouth. When the top cover 1 is put into the pot mouth, due to the loss of the upward pulling force on the piston 5, the spring 6 will control the piston 5 to move down and reset, and the gas inside the air cavity 3 will be injected into the inside of the hollow rubber ring 2. The hollow rubber ring 2 will expand and fit tightly on the inner wall of the pot mouth to ensure the sealing effect of the kettle. In addition, during the process of boiling water, the pressure relief mechanism 10 is used to stabilize the pressure inside and outside the kettle to avoid excessive pressure inside the kettle. After the pressure relief, the sealing inside the kettle can be well guaranteed.

[0027] In this embodiment, the pull block 9 is spherical in shape, and both sides of the pull block 9 are provided with anti-slip grooves.

[0028] Partial working principle: When the pull block 9 is carried, the fingers will come into contact with the anti-slip grooves, which increases the carrying stability of the pull block 9.

[0029] In this embodiment, the pressure relief mechanism 10 includes an air hole 11, a limiting ring 12, a sliding rod 13, a blocking block 14 and an anti-slip block 15. The air hole 11 is opened on the side of the top cover 1, and a limiting ring 12 is horizontally fixed on the inner side of the air hole 11. A sliding rod 13 is slidingly provided inside the limiting ring 12. A blocking block 14 is fixed to the top end of the sliding rod 13. The inner side of the blocking block 14 is in contact with the inner wall of the air hole 11, and an anti-slip block 15 whose length is greater than the inner diameter of the limiting ring 12 is fixed to the bottom end of the sliding rod 13.

[0030] Partial working principle: After the water boils, the internal pressure of the kettle increases, which will control the block 14 to move upward, connecting the air hole 11 to the outside, and the high-pressure gas passes through the limit ring 12 and is discharged from the inside of the air hole 11, stabilizing the pressure inside and outside the kettle.

[0031] In this embodiment, a rubber ring is provided on the outer side of the blocking block 14 , and the outer side of the rubber ring is in contact with the inner wall of the air hole 11 .

[0032] Partial working principle: After the pressure is stabilized, the block 14 will move down to the inside of the pore 11, and the rubber ring is used to ensure the fit between the block 14 and the inner wall of the pore 11, so that the sealing is higher.

[0033] In this embodiment, the extrusion mechanism includes an arc cover 16, an external screw 17 and a pressure plate 18. The arc cover 16 is located at the top of the top cover 1. The through hole 7 passes through the center of the arc cover 16. The bottom end of the arc cover 16 is fixed with an external screw 17. The external screw 17 is threadedly connected to the inner wall of the pull rod 8. The bottom end of the external screw 17 is fixed with a pressure plate 18. The bottom of the pressure plate 18 is in contact with the top of the spring 6.

[0034] Local working principle: After the top cover 1 is used for a long time, the internal spring 6 will have elastic fatigue, resulting in a decrease in its elasticity, and the reset effect of the piston 5 will be reduced. Therefore, in order to ensure the reset effect of the piston 5, the arc cover 16 is rotated, and the pressure plate 18 is adjusted downward to compress the spring 6 downward to ensure the elastic force of the spring 6 when it is reset, thereby ensuring the sealing effect.

[0035] In this embodiment, a sealing ring 19 is provided at the bottom of the arc-shaped cover 16 , and the bottom of the sealing ring 19 is in contact with the surface of the top cover 1 .

[0036] Partial working principle: The use of the sealing ring 19 can prevent dirt from entering the bottom of the arc cover 16, making it convenient to adjust during use.

[0037] In this embodiment, the outer side of the arc-shaped cover 16 is provided with anti-slip grooves, and the outer side of the arc-shaped cover 16 is provided with indicating arrows along the circumferential direction.

[0038] Partial working principle: The anti-skid pattern is used to avoid hand slipping when adjusting the arc cover 16, making the adjustment more convenient, and the indicator arrow can ensure the correct adjustment direction.

[0039] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A high sealing top cover structure, characterized in that: The invention comprises a top cover (1), the outer side of the top cover (1) is surrounded by a hollow rubber ring (2), an air cavity (3) is vertically opened at the middle position inside the top cover (1), a guide hole (4) is opened inside the top cover (1), the two ends of the guide hole (4) are respectively connected to the air cavity (3) and the hollow rubber ring (2), a piston (5) is vertically slidably arranged inside the air cavity (3), a pull rod (8) connected to the outside of the top cover (1) is opened at the top of the air cavity (3), a spring (6) is arranged between the top of the piston (5) and the inner top of the air cavity (3), the top of the spring (6) is provided with an extrusion mechanism, a through hole (7) is fixed on the top of the piston (5), the through hole (7) passes through the spring (6) and the pull rod (8), a pull block (9) is fixed on the top of the through hole (7), and a pressure relief mechanism (10) is arranged on the outer side of the top cover (1).

2. A high sealing top cover structure according to claim 1, characterized in that: The pull block (9) is spherical in shape, and both sides of the pull block (9) are provided with anti-slip grooves.

3. The high sealing top cover structure according to claim 1, characterized in that: The pressure relief mechanism (10) comprises an air hole (11), a limiting ring (12), a sliding rod (13), a blocking block (14) and an anti-slip block (15); the air hole (11) is provided on the side of the top cover (1); a limiting ring (12) is horizontally fixed on the inner side of the air hole (11); a sliding rod (13) is slidably provided inside the limiting ring (12); a blocking block (14) is fixed on the top end of the sliding rod (13); the inner side of the blocking block (14) is in contact with the inner wall of the air hole (11); and an anti-slip block (15) having a length greater than the inner diameter of the limiting ring (12) is fixed on the bottom end of the sliding rod (13).

4. A high sealing top cover structure according to claim 3, characterized in that: A rubber ring is arranged on the outer side of the blocking block (14), and the outer side of the rubber ring is in contact with the inner wall of the air hole (11).

5. The high sealing top cover structure according to claim 1, characterized in that: The extrusion mechanism includes an arc-shaped cover (16), an external screw (17) and a pressure plate (18). The arc-shaped cover (16) is located at the top of the top cover (1). The through hole (7) passes through the center of the arc-shaped cover (16). The bottom end of the arc-shaped cover (16) is fixed with an external screw (17). The external screw (17) is threadedly connected to the inner wall of the pull rod (8). The bottom end of the external screw (17) is fixed with a pressure plate (18). The bottom of the pressure plate (18) is in contact with the top of the spring (6).

6. A high sealing top cover structure according to claim 5, characterized in that: A sealing ring (19) is provided at the bottom of the arc-shaped cover (16), and the bottom of the sealing ring (19) is attached to the surface of the top cover (1).

7. A high sealing top cover structure according to claim 5 or 6, characterized in that: The outer side of the arc-shaped cover (16) is provided with anti-slip grooves, and the outer side of the arc-shaped cover (16) is provided with indicating arrows along the circumferential direction.

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