CN115040011A

CN115040011A - Stable electric kettle based on negative pressure adsorption

Info

Publication number: CN115040011A
Application number: CN202210689861.XA
Authority: CN
Inventors: 马超群
Original assignee: Homeart Shunde Electrical Mfg Co ltd
Current assignee: Homeart Shunde Electrical Mfg Co ltd
Priority date: 2022-06-18
Filing date: 2022-06-18
Publication date: 2022-09-13
Anticipated expiration: 2042-06-18
Also published as: CN115040011B

Abstract

The invention discloses a stable electric kettle based on negative pressure adsorption, which comprises a base, wherein a connecting seat is inserted at the upper end of the base, a kettle body is installed at the upper end of the connecting seat, a sealing box is hermetically installed in the base, an adsorption mechanism is arranged on the sealing box and connected with the connecting seat, four connecting boxes are hermetically connected at equal intervals around the sealing box, a power mechanism is installed on each connecting box and connected with the connecting seat, a rotating rod is connected to each power mechanism, and a first gear is fixed on each rotating rod. According to the invention, the gravity of the kettle and the water in the kettle is taken as a power source, and the corresponding parts can be well operated through the conversion of the gravity, so that the connection mode of negative pressure adsorption is realized by regulating and controlling the pressure intensity, the stability of the kettle body, the connecting seat and the base is ensured, the use safety is improved, and meanwhile, the kettle is convenient to take, place and separate quickly, and is convenient to use.

Description

Stable form electric kettle based on negative pressure is adsorbed

Technical Field

The invention relates to the technical field of electric kettles, in particular to a stable electric kettle based on negative pressure adsorption.

Background

The electric kettle adopts intelligent steam induction temperature control and has the functions of automatic power off after water is boiled and dry heating power off. Along with the needs of life, the existing electric kettle is developing towards multifunctional directions, such as leakage prevention, scald prevention, water locking and the like, and the electric kettle works according to the working principle that a bimetallic strip of a steam temperature sensing element is deformed by utilizing water vapor generated when water is boiled, and a power switch is pushed by utilizing the deformation through a lever principle, so that the electric kettle is automatically powered off after the water is boiled.

Current electric kettle generally installs electric connector on its base, the lower extreme at the base and the kettle body is supporting installs power connection equipment, thereby convenient to use, conveniently heat up the water operation, and for the ease of use, the connection of electric kettle and base is not fixed connection, thereby conveniently get the kettle body of putting, simultaneously electric kettle base is also firm with the connection of placing the seat, when meetting and rocking or external force striking, it produces danger to make the kettle body empty easily or the base shifts, be unfavorable for guaranteeing the security of using, be not convenient for use, so need improve.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, an electric kettle is not fixedly connected with a base for convenient use, so that a kettle body is convenient to take and place, meanwhile, the connection between the base of the electric kettle and a placing seat is not stable, when shaking or external force impact occurs, the kettle body is easy to topple or the base is easy to shift to cause danger, the use safety is not guaranteed, and the use is inconvenient.

In order to achieve the purpose, the invention adopts the following technical scheme:

a stable electric kettle based on negative pressure adsorption comprises a base, wherein a connecting seat is inserted into the upper end of the base, a kettle body is installed at the upper end of the connecting seat, a sealing box is installed in the base in a sealing mode, an adsorption mechanism is arranged on the sealing box and is connected with the connecting seat, four connecting boxes are connected in a sealing mode in a circle of the sealing box at equal intervals, a power mechanism is installed on each connecting box and is connected with the connecting seat, a rotating rod is connected onto the power mechanism, a first gear is fixed onto the rotating rod, a connecting frame is connected onto the first gear in a rotating mode, a second gear is connected onto the lower end of the connecting frame in a rotating mode, a swing rod is fixed onto the second gear, the first gear is meshed with the second gear, an installation box is installed in the connecting box in a sealing mode, a moving block is installed in the installation box in a sealing mode, the improved rubber buffer sealing device is characterized in that a sliding opening is formed in the mounting box, a sliding piece is slidably mounted in the sliding opening, the upper end and the lower end of the sliding piece are respectively rotatably connected with a push rod and an inclined rod, the push rod and the oscillating rod are rotatably connected, the lower end of the inclined rod is rotatably connected onto a movable block, the mounting box and the movable block both extend into the sealing box, a regulating mechanism is mounted on the connecting seat, four rubber cushions are arranged on the regulating mechanism, and the four rubber cushions are connected with an adsorption mechanism.

Preferably, be convenient for carry on electric power's transmission, conveniently heat the water in the electric kettle, install the connector in the sealing box, the upper end of connector extends to the upper end of base, the connector is connected with the connecting seat.

Preferably, in order to convert the gravity of the electric kettle and the water therein into a tensile force and provide power for the operation of corresponding parts, the power mechanism comprises a shaft sleeve fixed on the side wall of one end in the connecting box, a screw nut is rotatably sleeved on the shaft sleeve, a screw is screwed in the screw nut, the upper end of the screw penetrates through the base and extends to the upper end of the base, the upper end of the screw corresponds to the connecting seat, the lower end of the screw is connected with a reset assembly, and the reset assembly is connected with the connecting box.

Preferably, in order to facilitate the resetting of the components, the air pressure is conveniently recovered to be normal, the electric kettle is convenient to take down, the resetting component comprises a vertical rod which is sleeved in the screw rod in a sliding mode, the lower end of the vertical rod is fixed to the bottom in the connecting box, a second spring is sleeved on the vertical rod, and the two ends of the second spring are respectively fixed to the lower end of the screw rod and the bottom in the connecting box.

Preferably, for the realization negative pressure that can be fine adsorbs, guarantees the fastness of connection, adsorption apparatus constructs including seting up four connecting holes on the base, four recesses have been seted up on the base, four connecting holes set up respectively in four recesses, and four rubber cushions are corresponding with four recesses respectively, and the lower extreme of four connecting holes extends to in the seal box, install four sucking discs in the base, the lower extreme parallel and level setting of four sucking discs and the lower extreme of base, four sucking discs all with seal box through connection.

Preferably, in order to guarantee effectively that the leakproofness, avoid appearing leaking and lead to the condition that the adsorption affinity is not enough to appear, the equidistant cover of a week of mounting box is equipped with three first sealing washer, and three first sealing washer all offsets with the inner wall of connecting box, the equidistant cover of a week of movable block is equipped with three second sealing washer, and three second sealing washer all offsets with a week lateral wall in the mounting box.

Preferably, get for further direction and put, regulation and control mechanism is including setting up four perforating holes in the connecting seat, and four perforating holes run through the setting respectively on four rubber cushions, run through jointly between four perforating holes and be equipped with the annular pore, and the shifting chute has been seted up to the upper end of one of them perforating hole, the opening has been seted up to one side of shifting chute, slidable mounting has the cork in the shifting chute, the lower extreme of cork runs through the setting in one of them perforating hole, the top in cork and the shifting chute is fixed with first spring jointly, the shift key is installed to one side of cork, the shift key runs through the setting in the opening. Preferably, in order to facilitate the effective absorption and ensure the firmness of connection, the diameter of the rubber soft cushion is larger than that of the groove.

The invention has the beneficial effects that:

1. when the kettle is used, the kettle body can drive the connecting seat to move together, so that the kettle is convenient to connect with the connector, the lead screw can be extruded through the self weight of the kettle body, when water is contained in the kettle body, the gravity of the kettle body is higher, the lead screw can be extruded better, and the operation of the kettle body and the gravity control equipment of the water in the kettle body is convenient to adopt;

2. when the screw is extruded, the screw nut can be descended to rotate forwards, and the screw can be quickly reset under the action of the second spring when the external force disappears, so that the screw nut can be conveniently rotated reversely, the adjustment is convenient and quick, and the use safety is improved;

3. when the screw nut rotates forwards, the rotating rod can be driven to rotate clockwise, so that a first gear connected with the rotating rod can drive a second gear to rotate conveniently, the swing rod can rotate anticlockwise conveniently, the parts can operate automatically through the self weight of the kettle body and the weight of added water, the mounting box can be pulled to move conveniently, when the swing rod operates, the push rod can push the sliding part to move in the sliding port, meanwhile, the inclined rod can drive the moving block to move conveniently, the connection tightness is guaranteed through the action of the first sealing ring and the second sealing ring, the occupied volume of air in the sealing box is enlarged, the air pressure in the sealing box is reduced, the air pressure in the sucker and the groove is reduced, and the negative-pressure adsorption connection and fixation are facilitated;

4. when the air pressure in the sucker and the groove is reduced, the base and the placing seat can be firmly connected through the extrusion of the external atmospheric pressure, and meanwhile, the base and the connecting seat are convenient to be firmly connected, so that the stability of the kettle body and the connecting seat is convenient to ensure;

5. when the kettle is taken, the kettle body can be driven to rise through external force, so that the kettle body is conveniently separated from the base, the soft plug can be pushed to rise through the moving key, gas conveniently enters the groove and the sealing box through the through hole, the internal pressure of the gas is recovered, the kettle body is conveniently and quickly taken and placed, and the use of a user is facilitated;

in conclusion, the water kettle and the gravity of water in the water kettle are used as power sources, and corresponding parts can be well operated through the conversion of the gravity, so that the pressure is regulated and controlled to realize a negative pressure adsorption connection mode, the stability of the kettle body, the connecting seat and the base is ensured, the use safety is improved, and meanwhile, the water kettle is convenient to take, place and separate quickly and is convenient to use.

Drawings

Fig. 1 is a structural diagram of a stable electric kettle based on negative pressure adsorption.

Fig. 2 is a sectional view of a connecting box and a sealing box of a stable electric kettle based on negative pressure adsorption.

Fig. 3 is a top view of a base of the stable electric kettle based on negative pressure adsorption.

Fig. 4 is an enlarged view of a position a of the stable electric kettle based on negative pressure adsorption.

Fig. 5 is an enlarged view of a position B of the stable electric kettle based on negative pressure adsorption provided by the invention.

Fig. 6 is an enlarged view of a position B of the stable electric kettle based on negative pressure adsorption provided by the invention.

Fig. 7 is a structural diagram of a reset assembly of the stable electric kettle based on negative pressure adsorption.

Fig. 8 is a structural diagram of a stable electric kettle based on negative pressure adsorption.

In the figure: 1 kettle body, 2 connecting seats, 3 connectors, 4 bases, 5 rubber cushions, 6 connecting boxes, 7 suckers, 8 first sealing rings, 9 moving blocks, 10 shaft sets, 11 lead screws, 12 inclined rods, 13 second sealing rings, 14 mounting boxes, 15 grooves, 16 connecting holes, 17 first springs, 18 soft plugs, 19 annular hole channels, 20 through holes, 21 moving grooves, 22 openings, 23 moving keys, 24 rotating rods, 25 first gears, 26 connecting frames, 27 second gears, 28 push rods, 29 swing rods, 30 sliding openings, 31 sliding parts, 32 lead screw nuts, 33 vertical rods, 34 second springs and 35 sealing boxes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, 8, a stable form electric kettle based on negative pressure is adsorbed, including base 4, base 4's upper end is pegged graft and is had connecting seat 2, the kettle body 1 is installed to the upper end of connecting seat 2, install connector 3 in the seal box 35, connector 3's upper end extends to base 4's upper end, connector 3 is connected with connecting seat 2, connector 3 can be connected with external power source, be convenient for can the heat with electric power conversion, be convenient for heat the water in the kettle body 1, the supporting part of being convenient for to control simultaneously with electric power conversion heat that sets up jointly on the kettle body 1 and the connecting seat 2 with connector 3, the person of facilitating the use uses, be convenient for accomplish the heating to water.

Referring to fig. 1, sealed box 35 is installed to 4 interior seal of base, is equipped with adsorption apparatus on the sealed box 35, and adsorption apparatus constructs and is connected with connecting seat 2, can be convenient for accomplish to connect fixedly, and the fastness of connection is promoted through the absorbent mode of negative pressure to the convenience.

Referring to fig. 1 and 3, the adsorption mechanism includes four connection holes 16 formed in the base 4, four grooves 15 are formed in the base 4, the four connection holes 16 are respectively formed in the four grooves 15, the four rubber cushions 5 respectively correspond to the four grooves 15 and can be abutted well to ensure the connection tightness, the rubber cushions 5 are extruded under the action of gravity to deform and fill gaps, so as to avoid leakage, meanwhile, rubber rings can be arranged on the side wall of the periphery in the grooves 15 to correspond to the rubber cushions 5, so as to further ensure the sealing effect, the diameter of the rubber cushions 5 is larger than that of the grooves 15, so as to effectively cover and further ensure the sealing effect, the lower ends of the four connection holes 16 extend into the sealing box 35, the four suckers 7 are installed in the base 4, and the lower ends of the four suckers 7 are flush with the lower end of the base 4, four sucking discs 7 all with seal box 35 through connection, be convenient for place the plane with base 4 and adsorb, sucking disc 7 can adopt hard plastic to add the soft circle of bottom and prepare jointly, guarantee and place the plane sealed effect after supporting to can effective sucking disc 7 avoid taking place deformation, lead to can not realizing the absorbent effect of negative pressure.

Referring to fig. 1-3, a circle of the sealing box 35 is equidistantly and hermetically connected with four connecting boxes 6, the connecting boxes 6 are provided with power mechanisms, and the power mechanisms are connected with the connecting seats 2, so that gravity can be well converted into power, power can be conveniently provided for the operation of parts, and the effect of negative pressure adsorption and fixation can be realized. Referring to fig. 2, 3, 7, power unit is including fixing the axle external member 10 on the one end lateral wall in the connecting box 6, it has screw nut 32 to rotate the cover on the axle external member 10, screw 11 has been screwed in screw nut 32, base 4 is run through and extends to the upper end of base 4 to the upper end of screw 11, the upper end and the connecting seat 2 of screw 11 are corresponding, the lower extreme of screw 11 is connected with reset assembly, reset assembly and connecting box 6 are connected, when the screw 11 atress can the external force disappear, under reset assembly's cooperation, the fine decline or the rising of going on of ability resets, this just can make screw nut 32 carry out forward rotation or reverse rotation, be convenient for convert gravity into power. Referring to fig. 7, the subassembly that resets includes that the slip cup joints montant 33 in lead screw 11, the bottom in connecting box 6 is fixed to the lower extreme of montant 33, the cover is equipped with second spring 34 on montant 33, the bottom in the lower extreme of lead screw 11 and connecting box 6 is fixed respectively to the both ends of second spring 34, when external force applys or disappears, second spring 34 can be the atress shrink or the reconversion to enable lead screw 11 decline or rise and reset.

Referring to fig. 2, 5 and 6, a power mechanism is connected with a rotating rod 24, the rotating rod 24 is fixed with a first gear 25, the first gear 25 is connected with a connecting frame 26 in a rotating manner, the lower end of the connecting frame 26 is connected with a second gear 27 in a rotating manner, a swing rod 29 is fixed on the second gear 27, the first gear 25 is engaged with the second gear 27, a mounting box 14 is hermetically mounted in the connecting box 6, a moving block 9 is hermetically mounted in the mounting box 14, a sliding opening 30 is formed in the mounting box 14, a sliding member 31 is slidably mounted in the sliding opening 30, the upper end and the lower end of the sliding member 31 are respectively connected with a push rod 28 and an inclined rod 12 in a rotating manner, the push rod 28 is rotatably connected with the swing rod 29, the lower end of the inclined rod 12 is rotatably connected with the moving block 9, the mounting box 14 and the moving block 9 both extend into a sealing box 35, a lead screw nut 32 is rotated to rotate the rotating rod 24, so that the first gear 25 is moved and drives the second gear 27 engaged with the first gear to rotate the swing rod 29, when the swing rod 29 rotates, the mounting box 14 can move towards the inner wall of the base 4, when the swing rod 29 operates, the sliding piece 31 is pushed through the push rod 28 and moves in the sliding opening 30, the sliding piece 31 can move towards the sliding opening 30 through the inclined rod 12, the sliding piece 31 can drive the moving block 9 to move towards the sliding opening 30, the sealing is performed through the extrusion of the inner walls of the first sealing ring 8 and the connecting box 6 and the extrusion of the inner walls of the second sealing ring 13 and the mounting box 14, air leakage is avoided, the space occupied by gas in the sealing box 35 is enlarged, the internal pressure is reduced, the rubber cushion 5 is abutted against the groove 15, effective sealing can also be achieved, gas leakage is avoided, the space occupied by the gas in the sealing box 35 is further enlarged, negative pressure is formed in the sealing box 35, the base 4 and the connecting seat 2 are fixedly connected, the base 4 and the placing seat are fixedly connected, and the overall stability is guaranteed.

Referring to fig. 2, 5 and 6, a week equidistant cover of mounting box 14 is equipped with three first sealing washer 8, and three first sealing washer 8 all offsets with the inner wall of connecting box 6, and a week equidistant cover of movable block 9 is equipped with three second sealing washer 13, and three second sealing washer 13 all offsets with a week lateral wall in the mounting box 14, guarantees sealed effect, avoids appearing the condition of leaking. Referring to fig. 1 and 4, a regulating mechanism is installed on a connecting seat 2, the regulating mechanism is provided with four rubber cushions 5, the four rubber cushions 5 are connected with an adsorption mechanism, the regulating mechanism comprises four through holes 20 arranged in the connecting seat 2, the four through holes 20 are respectively arranged on the four rubber cushions 5 in a penetrating manner, annular ducts 19 are arranged between the four through holes 20 in a penetrating manner, a moving groove 21 is arranged at the upper end of one through hole 20, an opening 22 is arranged at one side of the moving groove 21, a soft plug 18 is slidably installed in the moving groove 21, the lower end of the soft plug 18 is arranged in one through hole 20 in a penetrating manner, a first spring 17 is jointly fixed at the top of the soft plug 18 and the moving groove 21, and the first spring 17 can well push the soft plug 18 to descend to block the through hole 20 corresponding to prevent gas from flowing when no external force exists, thereby ensuring the sealing effect and stable operation of negative pressure adsorption, the movable key 23 is arranged on one side of the soft plug 18, the movable key 23 penetrates through the opening 22, when the kettle body 1 is taken and placed, the air pressure can be recovered stably through directly moving out of the kettle body 1, the disassembly is convenient, the through hole 20 can be communicated through adjusting the movable key 23, the air flow is convenient, and the air pressure can be recovered stably and the disassembly is convenient.

In the invention, when the kettle body 1 is filled with water, a user correspondingly inserts the connecting seat 2 under the kettle body 1 and the connector 3 on the base 4, so that the connecting seat 2 can extrude the lead screw 11 to lead the lead screw 11 to descend and drive the lead screw nut 32 to rotate, the lead screw nut 32 can rotate to drive the rotating rod 24 to rotate, the first gear 25 can move and drive the second gear 27 meshed with the first gear to drive the oscillating rod 29 to rotate, when the oscillating rod 29 rotates, the mounting box 14 can move towards the inner wall of the base 4, when the oscillating rod 29 operates, the sliding piece 31 is pushed by the push rod 28 to move in the sliding opening 30, the sliding piece 31 can move by driving the moving block 9 to move towards the sliding opening 30 through the inclined rod 12, and the air leakage can be avoided by the extrusion of the inner walls of the first sealing ring 8 and the connecting box 6 and the second sealing ring 13 and the inner wall of the mounting box 14, enlarge the space that the gas in the seal box 35 occupied, reduce inside pressure, and rubber cushion 5 contradicts with recess 15, also can effectively seal, avoid gaseous revealing, further enlarge the shared space of gas in the seal box 35, make and form the negative pressure in the seal box 35, it is fixed to make base 4 and connecting seat 2 connect, base 4 is fixed with placing the seat connection, guarantee holistic stability, when getting to put, can make atmospheric pressure resume steadily through directly shifting out the kettle body 1, convenient dismantlement, also can make perforating hole 20 link up through adjusting shift key 23, the gas flow of being convenient for, conveniently make atmospheric pressure resume steady convenient dismantlement.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a stable form electric kettle based on negative pressure is adsorbed, includes base (4), its characterized in that: the upper end of the base (4) is inserted with the connecting seat (2), and the upper end of the connecting seat (2) is provided with the kettle body (1); the sealing box (35) is installed in the base (4) in a sealing manner, an adsorption mechanism is arranged on the sealing box (35), the adsorption mechanism is connected with the connecting seat (2), four connecting boxes (6) are connected to the sealing box (35) in an equidistant manner, a power mechanism is installed on the connecting box (6), the power mechanism is connected with the connecting seat (2), a rotating rod (24) is connected to the power mechanism, a first gear (25) is fixed on the rotating rod (24), a connecting frame (26) is connected to the first gear (25) in a rotating manner, a second gear (27) is connected to the lower end of the connecting frame (26) in a rotating manner, a swinging rod (29) is fixed on the second gear (27), the first gear (25) is meshed with the second gear (27), and a mounting box (14) is installed in the connecting box (6) in a sealing manner, the mounting box is characterized in that a movable block (9) is installed in the mounting box (14) in a sealing mode, a sliding opening (30) is formed in the mounting box (14), a sliding piece (31) is installed in the sliding opening (30), the upper end and the lower end of the sliding piece (31) are respectively connected with a push rod (28) and an inclined rod (12) in a rotating mode, the push rod (28) and the swing rod (29) are connected in a rotating mode, the lower end of the inclined rod (12) is connected to the movable block (9) in a rotating mode, the mounting box (14) and the movable block (9) both extend into a sealing box (35), a regulating mechanism is installed on the connecting seat (2), four rubber cushions (5) are arranged on the regulating mechanism, and the four rubber cushions (5) are connected with an adsorption mechanism.

2. The stable electric kettle based on negative pressure adsorption of claim 1, characterized in that: install connector (3) in seal box (35), the upper end of connector (3) extends to the upper end of base (4), connector (3) are connected with connecting seat (2).

3. The stable electric kettle based on negative pressure adsorption of claim 1, characterized in that: the power mechanism comprises a shaft sleeve (10) fixed on the side wall of one end in the connecting box (6), a screw nut (32) is sleeved on the shaft sleeve (10) in a rotating mode, a screw (11) is screwed in the screw nut (32), the upper end of the screw (11) penetrates through the base (4) and extends to the upper end of the base (4), the upper end of the screw (11) corresponds to the connecting seat (2), a reset assembly is connected to the lower end of the screw (11), and the reset assembly is connected with the connecting box (6).

4. The stable electric kettle based on negative pressure adsorption of claim 3, characterized in that: the reset assembly comprises a vertical rod (33) which is sleeved in the lead screw (11) in a sliding mode, the lower end of the vertical rod (33) is fixed to the bottom of the connecting box (6), a second spring (34) is sleeved on the vertical rod (33), and the two ends of the second spring (34) are fixed to the lower end of the lead screw (11) and the bottom of the connecting box (6) respectively.

5. The stable electric kettle based on negative pressure adsorption of claim 1, characterized in that: adsorption equipment constructs including seting up four connecting hole (16) on base (4), four recess (15) have been seted up on base (4), and four connecting hole (16) set up respectively in four recess (15), and four rubber cushion (5) are corresponding with four recess (15) respectively, and the lower extreme of four connecting hole (16) extends to in seal box (35), install four sucking disc (7) in base (4), the lower extreme parallel and level setting of the lower extreme of four sucking disc (7) and base (4), four sucking disc (7) all with seal box (35) through connection.

6. The stable electric kettle based on negative pressure adsorption of claim 1, characterized in that: the mounting box is characterized in that three first sealing rings (8) are sleeved on a circle of the mounting box (14) at equal intervals, the three first sealing rings (8) are all abutted to the inner wall of the connecting box (6), three second sealing rings (13) are sleeved on a circle of the moving block (9) at equal intervals, and the three second sealing rings (13) are all abutted to a circle of side walls in the mounting box (14).

7. The stable electric kettle based on negative pressure adsorption of claim 1, characterized in that: regulation and control mechanism is including setting up four perforating hole (20) in connecting seat (2), and four perforating hole (20) run through the setting respectively on four rubber cushion (5), run through jointly between four perforating hole (20) and be equipped with annular duct (19), and shifting chute (21) have been seted up to the upper end of one of them perforating hole (20), opening (22) have been seted up to one side of shifting chute (21), slidable mounting has soft stopper (18) in shifting chute (21), the lower extreme of soft stopper (18) runs through the setting in one of them perforating hole (20), top in soft stopper (18) and shifting chute (21) is fixed with first spring (17) jointly, shift key (23) are installed to one side of soft stopper (18), shift key (23) run through the setting in opening (22).

8. The stable electric kettle based on negative pressure adsorption of claim 5, characterized in that: the diameter of the rubber cushion (5) is larger than that of the groove (15).