CN216438947U

CN216438947U - Safe and reliable vacuum thermos cup

Info

Publication number: CN216438947U
Application number: CN202120224503.2U
Authority: CN
Inventors: 顾永洪
Original assignee: Zhongshan Mester Industry Co Ltd
Current assignee: Zhongshan Mester Industry Co Ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2022-05-06
Anticipated expiration: 2031-01-26

Abstract

The invention relates to a safe and reliable vacuum thermos cup, which comprises a vacuum cup body heating cup cover, wherein a heating water storage cavity is formed when the heating cup cover and the vacuum cup body are covered, a heating device and a sealing and exhausting mechanism are arranged on the heating cup cover, the heating device comprises a heating head which can extend into the heating water storage cavity of the vacuum cup body, and the sealing and exhausting mechanism comprises a pressure relief channel and a sealing switch valve which is arranged in the pressure relief channel and is used for controlling the communication or the sealing of the pressure relief channel and the heating water storage cavity; the heating cup cover is also provided with a control piece which can act relative to the heating cup cover and has an open state and a closed state, a heating control system for controlling the heating device to heat is arranged in the control piece or the heating cup cover, and the control piece can be used for controlling the heating device and the sealing switch valve to synchronously switch working states when the control piece is switched between the closed state and the open state; the linkage of the heating function and the exhaust function is effectively realized, manual exhaust of a user is not needed, and the safety performance is high.

Description

Safe and reliable vacuum thermos cup

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of daily necessities, in particular to a safe and reliable vacuum thermos cup.

[ background of the invention ]

Most of vacuum cups on the market at present only have a heat preservation function, users often need to firstly use an electric kettle to heat water and then pour the water into a vacuum cup for preservation, but the bottom of the electric kettle is easy to generate scale after the electric kettle is used for a long time at present, and the electric kettle has large noise when being used for boiling water and poor user experience; therefore, a vacuum cup with a heating function is available in the market, wherein a heating device is arranged at the cup bottom, but the heating device is arranged at the cup bottom, so that the heat preservation effect of the vacuum cup is poor, and the heating heat efficiency is greatly lost; therefore a thermos cup with heating device setting on the bowl cover has appeared in the market, like the controllable outdoor heatable drinking cup of the cell-phone of publication No. CN107361594A, its technical scheme who adopts is provided with the heating rod that can stretch into the aquatic and heat at the lower extreme of bowl cover for the bottom of cup can exert good heat preservation effect, but it need manually open the end cap when heating just can exhaust, if the user forgets to open the end cap when heating then incident such as easy explosion, the security performance is relatively poor.

[ summary of the invention ]

In order to solve the problems, the invention provides a vacuum thermos cup which is good in heat preservation effect, safe and reliable.

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

a safe and reliable vacuum heat-insulating cup comprises a vacuum cup body 1 and a heating cup cover 2 covered on the vacuum cup body 1, wherein a heating water storage cavity 10 is formed when the heating cup cover 2 is covered with the vacuum cup body 1, a heating device 3 and a sealing and exhausting mechanism 5 are arranged on the heating cup cover 2, the heating device 3 comprises a heating head 30 which can extend into the heating water storage cavity 10 of the vacuum cup body 1, and the sealing and exhausting mechanism 5 comprises a pressure relief channel 51 and a sealing switch valve 52 which is arranged in the pressure relief channel 51 and used for controlling the communication or the sealing of the pressure relief channel 51 and the heating water storage cavity 10; the heating cup cover 2 is also provided with a control part 4 which can move relative to the heating cup cover 2 and has an opening state and a closing state, the control part 4 or the heating cup cover 2 is internally provided with a heating control system 6 for controlling the heating device 3 to heat, and the control part 4 can control the heating device 3 and the sealing switch valve 52 to synchronously switch working states when switching between the closing state and the opening state;

when the control element 4 is in a closed state, the heating device 3 is communicated with the heating control system 6, and meanwhile, the sealing switch valve 52 is triggered to be opened by the control element 4 to communicate the pressure relief channel 51 with the heating water storage cavity 10;

when the control member 4 is in an open state, the heating device 3 is disconnected from the heating control system 6, and simultaneously the sealing switch valve 52 is triggered to be closed by the control member 4 to close the pressure relief channel 51, so that the heating water storage cavity 10 is in a sealing and heat-preserving state.

As a preferred embodiment, further defined is: the control piece 4 and the heating cup cover 2 are arranged in a split mode, the heating control system 6 is arranged in the control piece 4, a heating control output end 42 connected with the heating control system 6 is further arranged on the control piece 4, and a heating control input end 21 connected with the heating device 3 is arranged on the heating cup cover 2;

the control member 4 is further provided with a trigger part 43, and the sealing switch valve 52 is provided with a triggered part 520 which is triggered by the trigger part 43 to enable the sealing switch valve 52 to open the pressure relief channel 51;

when the control element 4 is combined with the heating cup cover 2, the control element 4 is in a closed state, the heating control output end 42 and the heating control input end 21 are in a conducting state, and meanwhile, the triggering part 43 and the triggered part 520 are in a matching state;

when the control element 4 is separated from the heating cup cover 2, the control element 4 is in an open state, the heating control output end 42 and the heating control input end 21 are in a disconnected state, and meanwhile, the triggering part 43 and the triggered part 520 are in a disengaged state.

As a preferred embodiment, further defined is: the pressure relief channel 51 comprises an exhaust port 50, a pressure relief valve port 53 capable of communicating the exhaust port 50 with the heating water storage cavity 10, and an exhaust channel 23 communicating the exhaust port 50 with the pressure relief valve port 53, the sealing switch valve 52 is arranged in the exhaust channel 23, and the sealing switch valve 52 is used for controlling the pressure relief valve port 53 to be closed or opened.

As a preferred embodiment, further defined is: the control piece 4 is covered on the heating cup cover 2 from top to bottom or is transversely inserted into the heating cup cover 2 to be connected with the heating cup cover 2.

As a preferred embodiment, further defined is: the exhaust passage 23 is an annular cavity channel arranged on the heating cup cover 2, the heating cup cover 2 is further provided with a wire placing cavity 22 surrounded by the annular cavity channel, and the wire placing cavity 22 is not communicated with the annular cavity channel.

As a preferred embodiment, further defined is: the heating head 30 is a heating rod, a heating cavity 31 communicated with the wire placing cavity 22 is arranged in the heating rod, and a heater connected with a heating control input end 21 is arranged in the heating cavity 31.

As a preferred embodiment, further defined is: the heater comprises a ceramic tube 32, a fuse link 33 arranged in the ceramic tube 32, a temperature controller 34 arranged in the ceramic tube 32, and a temperature sensor 35 arranged at the lower end of the ceramic tube 32.

As a preferred embodiment, further defined is: the heater is one of a thermistor, a heating wire, an electromagnetic heater, an infrared heater or a silicon nitride heater.

As a preferred embodiment, further defined is: the heating control output end 42 is in wired connection with the heating control input end 21, the heating control output end 42 is a plug or a socket, the heating control input end 21 is a socket or a plug, and the plug and the socket are electrically connected when the control element is in a closed state.

As a preferred embodiment, further defined is: be wireless connection between heating control output 42 and the heating control input 21, heating control output 42 is electromagnetic output coil, heating control input 21 is electromagnetic input coil, heating control device still include with the power supply battery that electromagnetic input coil is connected.

As a preferred embodiment, further defined is: the sealing switch valve 52 comprises a valve rod 521 passing through the pressure relief valve port 53, a sealing head 522 matched with the pressure relief valve port 53 and a return spring 523 arranged on the valve rod 521 in a penetrating manner, wherein the lower end of the valve rod 521 is provided with the sealing head, and the upper end of the valve rod 521 is connected with the triggered part 520; the valve rod 521 moves down when the triggered part 520 is triggered by the trigger part 43 so that the sealing head 522 is separated from the pressure relief valve port 53, and the valve rod 521 moves up when the triggered part 520 is mismatched with the trigger part 43 so that the sealing head 522 seals the pressure relief valve port 53.

As a preferred embodiment, further defined is: the heating cup cover 2 is provided with a guide groove 24 with a downward opening, the sealing head 522 comprises a guide head 5221 and a sealing piece 5222, and the outer wall of the guide head 5221 is matched with the guide groove 24.

As a preferred embodiment, further defined is: the triggering part 43 is a part of the bottom surface of the control member 4, the triggered part 520 is a protrusion, and the surface of the triggered part 520 is higher than the upper surface of the heating cup cover 2.

As a preferred embodiment, further defined is: heating bowl cover 2 includes bowl cover body 25 and lid and closes the upper cover body 26 of bowl cover body 25 upper end, upper cover body 26 is provided with the confession triggered the portion 520 up end protrusion in the trigger breach 261 of heating bowl cover 2 upper surface, the lateral wall of bowl cover body 25 is provided with stirs the breach 251 the same with exhaust passage 23, the outside that is triggered the portion 520 is provided with and is located stir the step 524 in the breach 251.

As a preferred embodiment, further defined is: the lower extreme of heating bowl cover 2 be provided with micro-gap switch 27 that vacuum cup 1 upper end contact is connected, micro-gap switch 27 is connected with heating control input 21 electricity, micro-gap switch 27's upper end is located put the line chamber 22 in, bowl cover body 25 still is provided with to encircle and is located the sealed chamber 28 in the guide way 24 outside, micro-gap switch 27's lower extreme is located in sealed chamber 28, vacuum cup 1's bottleneck with the chamber wall threaded connection of sealed chamber 28, the assembly back the bottleneck of cup 1 supports on micro-gap switch 27's lower extreme contact.

As a preferred embodiment, further defined is: the lower end of the heating cup cover 2 is also provided with an induction temperature controller 29 which is positioned in the cup mouth of the vacuum cup body 1 after assembly, and the induction temperature controller 29 is electrically connected with the heating control input end 21.

The beneficial effects of the invention are as follows:

1. when the heating cup cover is connected with the control piece, the exhaust mechanism is linked to open exhaust, the control circuit board is in contact with the heating rod to work, the linkage of the heating function and the exhaust function is effectively realized, manual exhaust of a user is not needed, and the safety performance is high. After the water is boiled, the control piece is separated from the heating cup cover, and the exhaust mechanism is closed by virtue of pulling force.

2. The invention is provided with the microswitch for detecting whether the cup body is tightly twisted with the heating cup cover or not, so that the heating rod is prevented from being heated in an empty state, and the safety is high.

3. The induction temperature controller is arranged for realizing automatic power-off and preventing overheating, and the safety is high.

[ description of the drawings ]

FIG. 1 is a schematic structural diagram of the invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an exploded view of the lid and the heating device;

FIG. 4 is one of schematic structural views of the lid body;

FIG. 5 is a second schematic structural view of the lid body;

FIG. 6 is an exploded view of the control member;

FIG. 7 is an exploded view of the venting mechanism;

FIG. 8 is a longitudinal structural section view of the invention;

fig. 9 is a cross-sectional view of the inventive transverse structure.

[ detailed description ] embodiments

The invention is described in further detail below with reference to the following figures and detailed description:

as shown in fig. 1 to 9, a safe and reliable vacuum thermos cup comprises a vacuum cup body 1 and a heating cup cover 2 covering the vacuum cup body 1, wherein a heating water storage cavity 10 is formed when the heating cup cover 2 and the vacuum cup body 1 are covered, a heating device 3 and a sealing and exhausting mechanism 5 are arranged on the heating cup cover 2, the heating device 3 comprises a heating head 30 which can extend into the heating water storage cavity 10 of the vacuum cup body 1, and the sealing and exhausting mechanism 5 comprises a pressure relief channel 51 and a sealing switch valve 52 which is arranged in the pressure relief channel 51 and used for controlling the communication or the sealing of the pressure relief channel 51 and the heating water storage cavity 10; the heating cup cover 2 is also provided with a control part 4 which can act relative to the heating cup cover 2 and has an open state and a closed state, the control part 4 or the heating cup cover 2 is internally provided with a heating control system 6 for controlling the heating device 3 to heat, and the control part 4 can control the heating device 3 and the sealing switch valve 52 to synchronously switch working states when switching between the closed state and the open state;

when the control part 4 is in a closed state, the heating device 3 is communicated with the heating control system 6, and meanwhile, the sealing switch valve 52 is triggered and opened by the control part 4 to communicate the pressure relief channel 51 with the heating water storage cavity 10; the linkage of the heating function and the exhaust function is effectively realized, manual exhaust of a user is not needed, and the safety performance is high.

When the control member 4 is in an open state, the heating device 3 is disconnected from the heating control system 6, and simultaneously the sealing switch valve 52 is triggered to be closed by the control member 4 to close the pressure relief channel 51, so that the heating water storage cavity 10 is in a sealing and heat-preserving state. Namely, after the water boiling is finished, the control piece 4 is separated from the heating cup cover 2, and the exhaust mechanism is closed by virtue of pulling force.

In this embodiment, the control member 4 and the heating cup cover 2 are separately arranged, the heating control system 6 is arranged in the control member 4, the control member 4 is further provided with a heating control output end 42 connected with the heating control system 6, and the heating cup cover 2 is provided with a heating control input end 21 connected with the heating device 3; the control member 4 is further provided with a trigger part 43, and the sealing switch valve 52 is provided with a triggered part 520 which is triggered by the trigger part 43 to enable the sealing switch valve 52 to open the pressure relief channel 51;

when the control element 4 is combined with the heating cup cover 2, the control element 4 is in a closed state, the heating control output end 42 and the heating control input end 21 are in a conducting state, and meanwhile, the triggering part 43 and the triggered part 520 are in a matching state, so that the structure is simple, and linkage is skillfully realized;

when the control element 4 is separated from the heating cup cover 2, the control element 4 is in an open state, the heating control output end 42 and the heating control input end 21 are in a disconnected state, and meanwhile, the triggering part 43 and the triggered part 520 are in a disengaging state, so that the structure is simple, and the linkage is skillfully realized.

In this embodiment, the pressure relief passage 51 includes an exhaust port 50, a pressure relief valve port 53 capable of communicating the exhaust port 50 with the heating water storage cavity 10, and an exhaust passage 23 communicating the exhaust port 50 with the pressure relief valve port 53, the sealing switch valve 52 is disposed in the exhaust passage 23, and the sealing switch valve 52 is used for controlling the closing or opening of the pressure relief valve port 53, and has a simple structure and a smart design.

In this embodiment, there are two connection directions between the control member 4 and the heating cup cover 2, the control member 4 is covered on the heating cup cover 2 from top to bottom or is transversely inserted into the heating cup cover 2 to be connected with the heating cup cover 2, furthermore, a schematic structural diagram of the control member 4 in the preferred mode is shown in the figure, the heating cup cover 2 is connected with the control member 4 through a coupler. The preferred scheme is from last down to close, and the user uses more conveniently, and the structure is simpler.

In this embodiment, the exhaust passage 23 is an annular channel arranged on the heating cup cover 2, the heating cup cover 2 is further provided with a wire placing cavity 22 surrounded by the annular channel, the wire placing cavity 22 is not communicated with the annular channel, so that water vapor can be prevented from entering the wire placing cavity 22, and electronic devices are protected.

In this embodiment, the heating head 30 is a heating rod, a heating cavity 31 is disposed in the heating rod and is communicated with the wire placing cavity 22, and a heater connected to the heating control input end 21 is disposed in the heating cavity 31. Further, as shown in fig. 8 and 9, the heater includes a ceramic tube 32, a fuse 33 disposed in the ceramic tube 32, a thermostat 34 disposed in the ceramic tube 32, and a temperature sensor 35 disposed at a lower end of the ceramic tube 32. The ceramic tube 32 can generate heat, the fuse link 33 plays a role in protection, the temperature controller 34 is used for controlling the heating temperature, and the temperature sensor 35 is used for detecting the water level and feeding back the temperature. In addition, the heater may also be one of a thermistor, a heating wire, an electromagnetic heater, an infrared heater, or a silicon nitride heater.

In this embodiment, the heating control output end 42 is connected to the heating control input end 21 by a wire, the heating control output end 42 is a plug or a socket, the heating control input end 21 is a socket or a plug, and the plug and the socket are electrically connected when the control element is in a closed state, so that the structure is simple. In addition, be wireless connection between heating control output 42 and the heating control input 21, heating control output 42 is electromagnetic output coil, heating control input 21 is electromagnetic input coil, heating controlling means still include with the power supply battery that electromagnetic input coil connects, wireless contact connects wide application in wireless charging technical field, adopts the wireless connection mode, can prevent to touch the water leakage, and the security is high.

As shown in fig. 7, the sealing switch valve 52 includes a valve rod 521 passing through the pressure relief valve port 53, a sealing head 522 arranged at the lower end of the valve rod 521 and engaged with the pressure relief valve port 53, and a return spring 523 arranged on the valve rod 521 in a penetrating manner, wherein the upper end of the valve rod 521 is connected with the triggered part 520; when the triggered part 520 is triggered by the trigger part 43, the valve rod 521 moves downwards to separate the sealing head 522 from the pressure relief valve port 53, and at the same time, the return spring 523 is compressed. When the triggered part 520 is mismatched with the triggering part 43, the return spring 523 drives the valve rod 521 to move upwards so that the sealing head 522 seals the pressure relief valve port 53, and the structure is simple.

As shown in fig. 5, the heating cup cover 2 is provided with a guide groove 24 with a downward opening, the sealing head 522 comprises a guide head 5221 and a sealing sheet 5222, and the outer wall of the guide head 5221 is matched with the guide groove 24, so that the sealing performance is effectively improved. In this embodiment, as shown in fig. 6, the triggering portion 43 is a part of the bottom surface of the control member 4, the triggered portion 520 is a protrusion, and the surface of the triggered portion 520 is higher than the upper surface of the heating cup lid 2. When in use, the triggered part 520 is pushed down by the pushing force, so that the sealing head 522 is separated from the pressure relief valve port 53 to open the exhaust.

As shown in fig. 3 and fig. 4, the heating cup cover 2 includes a cup cover body 25 and an upper cover body 26 covering the upper end of the cup cover body 25, the upper cover body 26 is provided with a triggering gap 261 for the upper end surface of the triggered portion 520 to protrude from the upper surface of the heating cup cover 2, the side wall of the cup cover body 25 is provided with a toggle gap 251 identical to the exhaust channel 23, and the outer side of the triggered portion 520 is provided with a toggle step 524 located in the toggle gap 251. The triggered part 520 or the step 524 can be manually pressed to open the air outlet, and water can be poured or drunk through the air outlet 50 by manually pressing the triggered part 520 or the step 524 when drinking water, wherein the shape of the air outlet 50 is the same as that of a water outlet spout of a kettle.

In this embodiment, the lower end of the heating cup cover 2 is provided with a micro switch 27 in contact connection with the upper end of the vacuum cup body 1, the micro switch 27 is electrically connected with the heating control input end 21, the upper end of the micro switch 27 is located in the wire placing cavity 22, the cup cover body 25 is further provided with a sealing cavity 28 located around the outer side of the guide groove 24, the lower end of the micro switch 27 is located in the sealing cavity 28, the bottle opening of the vacuum cup body 1 is in threaded connection with the cavity wall of the sealing cavity 28, and the bottle opening of the cup body 1 abuts against a lower end contact of the micro switch 27 after assembly. The micro switch 24 is used for detecting whether the vacuum cup body 1 is tightly twisted with the heating cup cover 2 or not, so that the heating head 30 is prevented from being heated in an empty state, and the safety is high.

The lower end of the heating cup cover 2 is also provided with an induction temperature controller 29 which is positioned in the cup mouth of the vacuum cup body 1 after assembly, and the induction temperature controller 29 is electrically connected with the heating control input end 21. More specifically, the upper end of the induction temperature controller 29 is located in the wire placing cavity 22, and the lower end of the induction temperature controller 29 is located in the heating water storage cavity 10. The induction temperature controller 29 is used for realizing automatic power-off, preventing overheating and having high safety.

Claims

1. A safe and reliable vacuum thermos cup comprises a vacuum cup body (1) and a heating cup cover (2) covered on the vacuum cup body (1), wherein the heating cup cover (2) and the vacuum cup body (1) form a heating water storage cavity (10) when covered, and the vacuum thermos cup is characterized in that a heating device (3) and a sealing and exhausting mechanism (5) are arranged on the heating cup cover (2), the heating device (3) comprises a heating head (30) which can extend into the heating water storage cavity (10) of the vacuum cup body (1), and the sealing and exhausting mechanism (5) comprises a pressure relief channel (51) and a sealing switch valve (52) which is arranged in the pressure relief channel (51) and is used for controlling the communication or the sealing of the pressure relief channel (51) and the heating water storage cavity (10); the heating cup cover (2) is further provided with a control piece (4) which can act relative to the heating cup cover (2) and has an open state and a closed state, a heating control system (6) used for controlling the heating device (3) to heat is arranged in the control piece (4) or the heating cup cover (2), and the control piece (4) can control the heating device (3) and the sealing switch valve (52) to synchronously switch working states when the closed state and the open state are switched;

when the control piece (4) is in a closed state, the heating device (3) is communicated with the heating control system (6), and meanwhile, the sealing switch valve (52) is triggered to be opened by the control piece (4) to communicate the pressure relief channel (51) with the heating water storage cavity (10);

when the control piece (4) is in an open state, the heating device (3) is disconnected from the heating control system (6), and meanwhile, the sealing switch valve (52) is triggered and closed by the control piece (4) to close the pressure relief channel (51) so that the heating water storage cavity (10) is in a sealing and heat-preserving state.

2. A safe and reliable vacuum thermos cup according to claim 1, characterized in that the control member (4) is provided separately from the heating cup cover (2), the heating control system (6) is provided in the control member (4), the control member (4) is further provided with a heating control output (42) connected with the heating control system (6), the heating cup cover (2) is provided with a heating control input (21) connected with the heating device (3);

the control piece (4) is also provided with a trigger part (43), and the sealing switch valve (52) is provided with a triggered part (520) which is triggered by the trigger part (43) to enable the sealing switch valve (52) to open the pressure relief channel (51);

when the control element (4) is combined with the heating cup cover (2), the control element (4) is in a closed state, the heating control output end (42) and the heating control input end (21) are in a conducting state, and meanwhile, the triggering part (43) and the triggered part (520) are in a matching state;

when the control piece (4) is separated from the heating cup cover (2), the control piece (4) is in an open state, the heating control output end (42) and the heating control input end (21) are in a disconnected state, and meanwhile the triggering portion (43) and the triggered portion (520) are in a disengaged state.

3. A safe and reliable vacuum insulation cup according to claim 2, characterized in that the pressure relief passage (51) comprises an exhaust port (50), a pressure relief valve port (53) capable of communicating the exhaust port (50) with the heating water storage chamber (10), and an exhaust passage (23) communicating the exhaust port (50) with the pressure relief valve port (53), the sealing on-off valve (52) is disposed in the exhaust passage (23), and the sealing on-off valve (52) is used for controlling the pressure relief valve port (53) to be closed or opened.

4. A safe and reliable vacuum thermos cup according to claim 3, characterized in that the control member (4) is covered on the lid (2) from top to bottom or inserted into the lid (2) laterally to connect with the lid (2).

5. A safe and reliable vacuum thermos cup according to claim 3, characterized in that the exhaust passage (23) is an annular channel provided on the cup cover (2), the cup cover (2) is further provided with a wire placing cavity (22) surrounded by the annular channel, the wire placing cavity (22) and the annular channel are not communicated with each other.

6. A safe and reliable vacuum thermos cup according to claim 5, characterized in that the heating head (30) is a heating rod, a heating cavity (31) communicated with the wire placing cavity (22) is arranged in the heating rod, and a heater connected with the heating control input end (21) is arranged in the heating cavity (31).

7. A safe and reliable vacuum thermos cup according to claim 6, characterized in that the heater comprises a ceramic tube (32), a fuse link (33) provided in the ceramic tube (32), a thermostat (34) provided in the ceramic tube (32), and a temperature sensor (35) provided at a lower end of the ceramic tube (32).

8. A safe and reliable vacuum thermos cup according to claim 6, characterized in that the heater is one of a thermistor, a heating wire, an electromagnetic heater, an infrared heater or a silicon nitride heater.

9. A safe and reliable vacuum insulation cup according to claim 2, characterized in that the heating control output (42) and the heating control input (21) are connected by wire, the heating control output (42) is a plug or a socket, the heating control input (21) is a socket or a plug, and the plug and the socket are electrically connected when the control member is in the closed state.

10. A safe and reliable vacuum thermos cup according to claim 2, characterized in that the heating control output (42) is wirelessly connected to the heating control input (21), the heating control output (42) is an electromagnetic output coil, the heating control input (21) is an electromagnetic input coil, and the heating control device further comprises a power supply battery connected to the electromagnetic input coil.

11. A safe and reliable vacuum thermos cup according to any of the claims 1-10, characterized in that the sealing switch valve (52) comprises a valve rod (521) passing through the pressure relief valve port (53), a sealing head (522) fitted with the pressure relief valve port (53) is arranged at the lower end of the valve rod (521), and a return spring (523) arranged on the valve rod (521) in a penetrating manner, the upper end of the valve rod (521) is connected with the triggered part (520); the valve rod (521) moves downwards when the triggered part (520) is triggered by the trigger part (43) to enable the sealing head (522) to be separated from the pressure relief valve port (53), and the valve rod (521) moves upwards when the triggered part (520) is mismatched with the trigger part (43) to enable the sealing head (522) to seal the pressure relief valve port (53).

12. A safe and reliable vacuum insulation cup according to claim 11, characterized in that the heating cup cover (2) is provided with a guide groove (24) with a downward opening, the sealing head (522) comprises a guide head (5221) and a sealing sheet (5222), and the outer wall of the guide head (5221) is engaged with the guide groove (24).

13. A safe and reliable vacuum insulation cup according to claim 11, characterized in that the triggering portion (43) is a part of the bottom surface of the control member (4), the triggered portion (520) is a protrusion, and the surface of the triggered portion (520) is higher than the upper surface of the heating cup cover (2).

14. A safe and reliable vacuum thermos cup according to claim 11, characterized in that the heating cup cover (2) comprises a cup cover body (25) and an upper cover body (26) covering the upper end of the cup cover body (25), the upper cover body (26) is provided with a triggering gap (261) for the upper end surface of the triggered portion (520) to protrude out of the upper surface of the heating cup cover (2), the side wall of the cup cover body (25) is provided with a shifting gap (251) which is the same as the exhaust passage (23), and the outer side of the triggered portion (520) is provided with a shifting step (524) which is positioned in the shifting gap (251).

15. A safe and reliable vacuum thermos cup according to any of the claims 5-8, characterized in that the sealing switch valve (52) comprises a valve rod (521) passing through the pressure relief valve port (53), a sealing head (522) matched with the pressure relief valve port (53) is arranged at the lower end of the valve rod (521), and a return spring (523) arranged on the valve rod (521) in a penetrating way, the upper end of the valve rod (521) is connected with the triggered part (520); the valve rod (521) moves downwards when the triggered part (520) is triggered by the trigger part (43) to enable the sealing head (522) to be separated from the pressure relief valve port (53), and the valve rod (521) moves upwards when the triggered part (520) is mismatched with the trigger part (43) to enable the sealing head (522) to seal the pressure relief valve port (53);

the heating cup cover (2) is provided with a guide groove (24) with a downward opening, the sealing head (522) comprises a guide head (5221) and a sealing piece (5222), and the outer wall of the guide head (5221) is matched with the guide groove (24);

the heating cup cover (2) comprises a cup cover body (25) and an upper cover body (26) covering the upper end of the cup cover body (25), the upper cover body (26) is provided with a triggering notch (261) for the upper end surface of the triggered part (520) to protrude out of the upper surface of the heating cup cover (2), the side wall of the cup cover body (25) is provided with a shifting notch (251) which is the same as the exhaust channel (23), and the outer side of the triggered part (520) is provided with a shifting step (524) located in the shifting notch (251);

the lower extreme of heating bowl cover (2) be provided with microswitch (27) that vacuum cup (1) upper end contact is connected, microswitch (27) are connected with heating control input (21) electricity, the upper end of microswitch (27) is located put in line chamber (22), bowl cover body (25) still are provided with to encircle and are located sealed chamber (28) in guide way (24) outside, the lower extreme of microswitch (27) is located in sealed chamber (28), the bottleneck of vacuum cup (1) with the chamber wall threaded connection of sealed chamber (28), the assembly back the bottleneck of cup (1) is supported on the lower extreme contact of microswitch (27).

16. A safe and reliable vacuum thermos cup according to any of the claims 1-10, characterized in that the lower end of the heating cup cover (2) is further provided with an induction temperature controller (29) which is positioned in the mouth of the vacuum cup body (1) after assembly, and the induction temperature controller (29) is electrically connected with the heating control input terminal (21).