CN112471855B

CN112471855B - Anti-falling vacuum cup

Info

Publication number: CN112471855B
Application number: CN202011476279.2A
Authority: CN
Inventors: 马佳吟
Original assignee: Hangzhou Jiafen Trading Co ltd
Current assignee: Yirui Product Design Ningbo Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2022-10-18
Anticipated expiration: 2040-12-15
Also published as: CN112471855A

Abstract

The invention belongs to the technical field of vacuum cups, and particularly relates to an anti-falling vacuum cup which comprises a cup body and a cup cover; the bottom end of the cup body is fixedly connected with a base, the bottom end of the base is connected with a sucker, a pressure cavity is formed in the base, a first electromagnet is mounted at the top end of the interior of the pressure cavity, a pressure plate is connected in the pressure cavity, a pressure relief groove communicated with the outside is formed in the top end of the pressure cavity, a first current conducting plate is connected to the bottom surface of the base at the position of the cavity, a second current conducting plate is arranged at the bottom end of the first current conducting plate, the second current conducting plate is connected with the base through a first spring, and a first button switch capable of controlling the first electromagnet to be powered off is arranged on the side wall of the cup body; according to the invention, by arranging the structure in the vacuum cup, the vacuum cup can be automatically fixed on the desktop when being placed on the desktop, so that the intelligence and convenience of the vacuum cup in use are greatly improved.

Description

Anti-falling vacuum cup

Technical Field

The invention belongs to the technical field of vacuum cups, and particularly relates to an anti-falling vacuum cup.

Background

In daily life, people often use cups to contain water, beverages and other liquids. However, when the conventional cup is placed on a table, the cup is prone to rollover when external force is applied, so that water is sprinkled on the table.

The invention provides an anti-falling vacuum cup, which comprises a cup body, a cup cover arranged on the cup body and a fixed seat arranged at the bottom of the cup body, wherein the cup cover is arranged on the cup body; an air-closing valve is arranged in the fixed seat, and a sucking disc is arranged at the bottom of the fixed seat; the cup body comprises a shell, an inner cavity connected in the shell and used for containing liquid, and an air closing valve control piece which is arranged below the inner cavity and used for controlling the air closing valve to move up and down relative to the fixed seat so as to enable the suction disc to enter or exhaust air. The utility model discloses an air-lock valve and sucking disc that set up on the fixing base, and through air-lock valve control air-lock valve for the air-lock valve reciprocates for the fixing base so that get into in the sucking disc or exhaust air, thereby makes to form the firm absorption of vacuum environment on the desktop in the sucking disc, and the thermos cup is taken up easily.

However, the vacuum cup in the technology needs the manual control switch to be effectively adsorbed on the desktop after being placed on the desktop, and when a user forgets to turn on the switch for control, the adsorption function of the vacuum cup is often invalid, so that an effective fixing effect cannot be achieved.

In view of this, the invention provides the anti-falling vacuum cup, and the structure in the vacuum cup is arranged, so that the vacuum cup can be automatically fixed on a desktop when being placed on the desktop, and the intelligence and convenience of the vacuum cup in use are greatly improved.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides the anti-falling vacuum cup, and the vacuum cup can be automatically fixed on a desktop when being placed on the desktop through the arrangement of the structure in the vacuum cup, so that the intelligence and convenience of the vacuum cup in use are greatly improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the anti-falling vacuum cup comprises a cup body and a cup cover positioned at the top end of the cup body; the bottom end of the cup body is fixedly connected with a base, the bottom end of the base is connected with a sucker, a pressure cavity is formed in the base, a cavity opening communicated with the inside of the sucker is formed in the bottom end of the pressure cavity, a first electromagnet is installed at the top end of the inside of the pressure cavity, a pressure plate is connected in the pressure cavity in a sliding mode and consists of an inner metal plate and an elastic layer wrapping the outer surface of the metal plate, the elastic layer is in interference fit with the side wall of the pressure cavity, the first electromagnet can attract the metal plate when working, an elastic body is arranged between the pressure plate and the inner end of the pressure cavity, a pressure relief groove communicated with the outside is formed in the top end of the pressure cavity, a storage battery is arranged in the base, a charging opening is formed in one side of the storage battery, a first current conducting plate is connected to the bottom surface of the base at the cavity opening, a second current conducting plate is arranged at the bottom end of the first current conducting plate, the second current conducting plate is connected with the base through a first spring, when the first current conducting plate is in contact with the first current conducting plate, the first electromagnet can be powered on and work, and a first button switch capable of controlling the first electromagnet is arranged on the side wall of the cup body; when the vacuum cup works, the vacuum cup in the prior art can be effectively adsorbed on a table top only by manually controlling a switch after being placed on the table top, and when a user forgets to turn on the switch for control, the adsorption function of the vacuum cup is often invalid, so that an effective fixing effect cannot be achieved; when the anti-falling vacuum cup is used, when the vacuum cup is placed on a table top, the table top can press a second current conducting plate at a sucker, the second current conducting plate moves towards the first current conducting plate under the action of the table top until the second current conducting plate is attached to the first current conducting plate, a circuit in the vacuum cup is electrified under the condition that the two current conducting plates are connected, a first electromagnet can attract a pressure plate after being electrified, the pressure plate slides towards the top end of the pressure cavity and extrudes gas at the top end of the pressure cavity through a pressure relief groove, meanwhile, a cavity between the pressure cavity at the bottom end of the pressure cavity and the sucker is expanded when the pressure plate moves upwards, the pressure in the cavity is smaller than external atmospheric pressure and is in a negative pressure state, the sucker can be firmly adsorbed on the table top under the action of the internal and external atmospheric pressures, when the vacuum cup needs to be taken down from the table top, the current of the first electromagnet is disconnected and does not work any more by pressing a first button switch, and the bottom end of the sucker is reset downwards at this time until the internal negative pressure of the sucker is in a normal pressure state, and the vacuum cup can be taken down from the table top conveniently and the pressure plate; by arranging the structure in the vacuum cup, when the vacuum cup is placed on a desktop, the cup body can be driven to be automatically fixed on the desktop by utilizing the contact of the two current-conducting plates in the vacuum cup, and the fixation of the cup body is not required to be controlled manually, so that the intelligence and the convenience of the vacuum cup in use are greatly improved; meanwhile, the pressure difference inside and outside the sucker is controlled by controlling the movement of the pressure plate, so that the sucker is more stable when being adsorbed and separated on a desktop, and the effectiveness of the vacuum cup in use is greatly improved.

Preferentially, sliding cavities are symmetrically formed in the side wall of the pressure cavity, two electromagnets are respectively mounted at the inner ends of the sliding cavities, a fixture block capable of being attracted by the two electromagnets is slidably connected to the outer end of the sliding cavity, an inclined extrusion surface is arranged on the bottom side of the outer end of the fixture block and extends out of the outer end of the sliding cavity, a second spring is connected between the fixture block and the inner end of the sliding cavity, clamping grooves matched with the fixture block are respectively formed in the side wall of the pressure plate, a second button switch capable of controlling the second electromagnet to work is arranged on the side wall of the cup body, a limiting block is arranged on the side wall of the inner end of the pressure cavity, and when the top end of the pressure plate moves to be attached to the limiting block, the clamping grooves are aligned with and communicated with the corresponding sliding cavities; when the vacuum cup is required to be separated from a fixed position, the second electromagnet is pressed to drive the second electromagnet to work, so that the second electromagnet attracts the clamping block, the clamping block retracts into the sliding cavity again and does not attract the pressure plate, and the first button switch is pressed to control the first electromagnet to do work again, so that the vacuum cup is restored downwards and the sucker is driven to be separated from the fixed position.

Preferentially, the side wall of the inner end of the clamping groove is rotatably connected with a rotating plate through a torsion spring, the top end of the rotating plate is inclined towards one end close to the clamping block, connecting grooves communicated with the cavity openings are formed in the pressure plates at the inner end of the clamping groove respectively, the bottom end of the rotating plate is connected with a traction rope, the other end of the traction rope penetrates through the connecting grooves to be connected with the top surface of a first current-conducting plate, and the first current-conducting plate is connected with the base through an elastic block; the during operation, at fixture block and draw-in groove matched with in-process, the fixture block can exert pressure to the rotor plate top, make the rotor plate pass through the current conducting plate upward movement of haulage rope pulling in the pivoted, thereby make current conducting plate and No. two current conducting plates take place to separate and make the circuit no longer communicate, an electro-magnet is no longer worked after the pressure plate is fixed this moment, no longer need manual press a button switch's form to close an electro-magnet, prevent that the user from forgetting to close an electro-magnet through a button switch after, lead to the extravagant condition of thermos cup electric quantity, the intelligence and the convenience of thermos cup when using have further been improved.

Preferentially, the bottom surface of the second conducting plate is positioned 0.2-1mm above the bottom surface of the sucker; the during operation, bottom surface position through setting up the current conducting plate No. two, make No. two current conducting plates be located the inside cavity of sucking disc completely, place when the desktop when the cup, the sucking disc bottom is laminated completely with the desktop at this moment foremost, the sucking disc bottom is outside expansion under the effect of cup self pressure simultaneously, make the sucking disc drive No. two current conducting plates and desktop contact pressfitting after taking place to deform, thereby make the desktop drive No. two current conducting plates and a current conducting plate contact and intercommunication, prevent that the bottom outward flange of sucking disc and desktop from laminating the absorption not completely and just making two current conducting plate contact intercommunication, thereby make the not good condition of adsorption effect of sucking disc, the stability and the validity of thermos cup when using have further been improved.

Preferentially, the first button switch and the second button switch are positioned on the same vertical line, the outer end of the first button switch is connected with a pressing plate, and the other end of the pressing plate extends to the outer end of the second button switch; the during operation, when the cup needs to break away from mutually with the fixed department, need press two button switch this moment simultaneously, it is comparatively loaded down with trivial details, through set up the clamp plate on a button switch this moment, when pressing the clamp plate, the clamp plate can drive two button switch and press simultaneously this moment to the convenience of thermos cup when using has been improved greatly.

Preferentially, the outer end of the pressure relief groove is connected with an annular cover, the inner end of the annular cover is connected with a third spring, and the other end of the third spring is connected with a piston matched with the pressure relief groove; the during operation, when the pressure plate upward movement and when compressing the top cavity of pressure chamber, gas in this cavity can carry out the pressure release through the slip that drives the piston in the pressure release inslot portion this moment, the piston that sets up simultaneously can effectually be isolated with the inside of external environment and base, prevent that external dust impurity from flowing into the pressure chamber with rivers through the pressure release inslot, thereby to the condition of its inside structure production damage, the result of use and the life of thermos cup have been improved greatly.

Preferentially, the base is symmetrically provided with limiting grooves, limiting rods are connected to the insides of the limiting grooves in a sliding manner, elastic pieces are connected between the top ends of the limiting rods and the inner ends of the limiting grooves, and the first conducting plate and the second conducting plate are respectively connected with the limiting rods in a sliding manner; when the device works, when the two current-conducting plates move under the action of the outside, the two current-conducting plates can vertically slide on the limiting rod and position the self positions at the same time, so that the situation that the two current-conducting plates are inclined or shaken to cause poor connection is prevented; set the gag lever post to the form that can slide from top to bottom in the spacing inslot portion simultaneously for the gag lever post can the retraction spacing inslot portion when contacting the pressure with the desktop, prevent that the sucking disc from leading to the gag lever post to take place the condition of interfering with the desktop when adsorbing with the desktop, further improved the stability and the validity of thermos cup when using.

Preferentially, barrier strips made of insulating and hard materials are symmetrically connected to the inner wall of the corresponding sucker between the first conducting plate and the second conducting plate, and the free ends of the barrier strips are located in the projection area of the first conducting plate and the second conducting plate in the vertical direction; the during operation, because two current conducting plates link to each other through elastic element respectively, when the heat preservation cup breaks away from the desktop and no longer fixes, two current conducting plates rock and contact the intercommunication about taking place easily under external interference this moment, can carry out the blend stop that completely cuts off two current conducting plates through setting up between the two this moment, prevent that two current conducting plates from taking place the condition of contact and intercommunication circuit under external interference, simultaneously when the sucking disc is placed on the desktop and when adsorbing with the desktop, the sucking disc of outside expansion this moment can drive the blend stop to the direction motion of keeping away from two current conducting plates, and no longer carry out the separation to two current conducting plates, thereby make the fixed work of thermos cup effectually go on smoothly.

The invention has the following beneficial effects:

1. according to the invention, by arranging the structure in the vacuum cup, when the vacuum cup is placed on a desktop, the cup body can be driven to be automatically fixed on the desktop by utilizing the contact of the two current-conducting plates in the vacuum cup, and the fixation of the cup body is not required to be controlled manually, so that the intelligence and convenience of the vacuum cup in use are greatly improved; meanwhile, the pressure difference inside and outside the sucker is controlled by controlling the movement of the pressure plate, so that the sucker is more stable when being adsorbed and separated on a desktop, and the effectiveness of the vacuum cup in use is greatly improved.

2. The baffle strip capable of isolating and blocking the two current-conducting plates is arranged between the two current-conducting plates, so that the two current-conducting plates are prevented from contacting and connecting a circuit under external interference, and meanwhile, when the sucker is placed on a desktop and adsorbed to the desktop, the sucker expanded outwards can drive the baffle strip to move in a direction away from the two current-conducting plates and does not isolate the two current-conducting plates, so that the fixing work of the vacuum cup can be smoothly and effectively carried out.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

in the figure: the cup comprises a cup body 1, a cup cover 2, a base 3, a sucker 4, a pressure cavity 5, a cavity opening 6, a first electromagnet 7, a pressure plate 8, a metal plate 9, an elastic layer 10, an elastic body 11, a pressure relief groove 12, a storage battery 13, a charging opening 14, a first conducting plate 15, a second conducting plate 16, a first spring 17, a second electromagnet 18, a clamping block 19, an extrusion surface 20, a second spring 21, a clamping groove 22, a second button switch 23, a limiting block 24, a rotating plate 25, a connecting groove 26, a traction rope 27, an elastic block 28, a pressure plate 29, an annular cover 30, a third spring 31, a piston 32, a limiting groove 33, a limiting rod 34, an elastic piece 35, a blocking strip 36, a first button switch 37 and a sliding cavity 38.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.

As shown in figures 1-4, the anti-falling vacuum cup comprises a cup body 1 and a cup cover 2 positioned at the top end of the cup body 1; the bottom end of the cup body 1 is fixedly connected with a base 3, the bottom end of the base 3 is connected with a sucker 4, a pressure cavity 5 is formed in the base 3, a cavity opening 6 communicated with the inside of the sucker 4 is formed in the bottom end of the pressure cavity 5, a first electromagnet 7 is installed at the top end of the inside of the pressure cavity 5, a pressure plate 8 is connected to the inside of the pressure cavity 5 in a sliding mode, the pressure plate 8 is composed of an inner metal plate 9 and an elastic layer 10 wrapping the outer surface of the metal plate 9, the elastic layer 10 is in interference fit with the side wall of the pressure cavity 5, the first electromagnet 7 can attract the metal plate 9 when working, an elastic body 11 is arranged between the pressure plate 8 and the inner end of the pressure cavity 5, a pressure relief groove 12 communicated with the outside is formed in the top end of the pressure cavity 5, a storage battery 13 is arranged in the base 3, a charging opening 14 is formed in one side of the storage battery 13, a first current-conducting plate 15 is connected to the bottom surface of the base 3 at the cavity opening 6, a second current-conducting plate 16 is arranged at the bottom end of the first electromagnet 15, the second current-conducting plate 16 is connected with the base 3 through a first spring 17, when the first current-conducting plate 15 is in contact with the second electromagnet 16, the first current-conducting plate, the first electromagnet 7 can be electrified to control button 37, and the switch of the first electromagnet 7 can be controlled by the first electromagnet; when the vacuum cup works, the vacuum cup in the prior art can be effectively adsorbed on a desktop only by manually controlling a switch after being placed on the desktop, and when a user forgets to turn on the switch for control, the adsorption function of the vacuum cup is often invalid, so that an effective fixing effect cannot be achieved; when the anti-falling vacuum cup is used, when the vacuum cup is placed on a table top, the table top can press the second conductive plate 16 at the sucker 4, so that the second conductive plate 16 moves towards the first conductive plate 15 under the action of the table top until the second conductive plate is attached to the first conductive plate, at the moment, a circuit in the vacuum cup is electrified under the condition that the two conductive plates are connected, so that the first electromagnet 7 can attract the pressure plate 8 after being electrified, the pressure plate 8 slides towards the top end of the pressure cavity 5 and presses out gas at the top end of the pressure cavity through the pressure relief groove 12, meanwhile, when the pressure plate 8 moves upwards, a cavity between the pressure cavity 5 at the bottom end of the pressure cavity and the sucker 4 can be expanded, so that the pressure in the cavity is smaller than the external atmospheric pressure and is in a negative pressure state, the sucker 4 can be firmly adsorbed on the vacuum cup under the action of the internal and external atmospheric pressures, when the vacuum cup needs to be taken off from the table top, the vacuum cup is conveniently and the sucker can be taken off from the table top quickly by pressing the first button switch 37; by arranging the structure in the vacuum cup, when the vacuum cup is placed on a table top, the cup body 1 can be driven to be automatically fixed on the table top by utilizing the contact of the two current-conducting plates in the vacuum cup, and the fixation of the cup body 1 is not required to be controlled manually, so that the intelligence and the convenience of the vacuum cup in use are greatly improved; meanwhile, the pressure difference inside and outside the sucker 4 is controlled by controlling the movement of the pressure plate 8, so that the sucker 4 is more stable when being adsorbed and separated on a desktop, and the effectiveness of the vacuum cup in use is greatly improved.

As an embodiment of the invention, sliding cavities 38 are symmetrically formed in the side wall of the pressure cavity 5, two electromagnets 18 are respectively mounted at the inner ends of the sliding cavities 38, a fixture block 19 capable of being attracted by the two electromagnets 18 is slidably connected to the outer end of the sliding cavity 38, an inclined extrusion surface 20 is arranged at the bottom side of the outer end of the fixture block 19, the extrusion surface 20 extends out of the outer end of the sliding cavity 38, a two-spring 21 is connected between the fixture block 19 and the inner end of the sliding cavity 38, clamping grooves 22 matched with the fixture block 19 are respectively formed in the side wall of the pressure plate 8, a two-button switch 23 capable of controlling the two electromagnets 18 to work is arranged on the side wall of the cup body 1, a limiting block 24 is arranged on the side wall of the inner end of the pressure cavity 5, and when the top end of the pressure plate 8 moves to be attached to the limiting block 24, the clamping grooves 22 are aligned with and communicated with the corresponding sliding cavities 38; when the vacuum cup fixing device works, when the pressure plate 8 moves upwards under the action of the electromagnet 7, the top end of the pressure plate 8 can apply pressure to the extrusion surface 20, so that the extrusion surface 20 is stressed to drive the fixture block 19 to be completely retracted into the sliding cavity 38, when the pressure plate 8 is attached to the limiting block 24, namely the fixture groove 22 is aligned with and communicated with the sliding cavity 38, the outer end of the fixture block 19 slides into the fixture groove 22 under the action of the second spring 21, so that the fixture block 19 clamped between the sliding cavity 38 and the fixture groove 22 can fix the pressure plate 8, at the moment, a circuit inside the vacuum cup can be disconnected by pressing the first button switch 37, the first electromagnet 7 does not need to continuously work to fix the pressure plate 8, so that the electrical energy is greatly saved, when the vacuum cup needs to be separated from a fixed position, the second button switch 23 is pressed to drive the second electromagnet 18 to work, so that the second electromagnet 18 attracts the fixture block 19 is retracted into the sliding cavity 38 again and does not attract the vacuum cup 8, and the first button switch 37 is pressed to control the first electromagnet 7 to work, so that the pressure plate 8 does not work smoothly and the pressure plate 4 can be separated from the pressure plate, and the effective sucker can be separated from the vacuum cup.

As an embodiment of the invention, the side wall of the inner end of the slot 22 is rotatably connected with a rotating plate 25 through a torsion spring, the top end of the rotating plate 25 is respectively inclined towards one end close to the clamping block 19, the inside of the pressure plate 8 at the inner end of the slot 22 is respectively provided with a connecting groove 26 communicated with the cavity opening 6, the bottom end of the rotating plate 25 is connected with a traction rope 27, the other end of the traction rope 27 respectively penetrates through the connecting groove 26 to be connected with the top surface of the first conducting plate 15, and the first conducting plate 15 is connected with the base 3 through an elastic block 28; during operation, at fixture block 19 and draw-in groove 22 matched with in-process, fixture block 19 can exert pressure to changeing board 25 top, make changeing board 25 pass through a haulage rope 27 pulling current conducting plate 15 upward movement in the pivoted, thereby make current conducting plate 15 take place to separate and make the circuit no longer communicate with No. two current conducting plates 16, this moment electro-magnet 7 no longer works after pressure plate 8 is fixed, no longer need manual pressing a form of button switch 37 to close electro-magnet 7, prevent that the user from forgetting to close an electro-magnet 7 back through button switch 37, lead to the extravagant condition of thermos cup electric quantity, the intelligence and the convenience of thermos cup when using have further been improved.

As an embodiment of the invention, the bottom surface of the second conducting plate 16 is 0.2-1mm above the bottom surface of the sucker 4; the during operation, bottom surface position through setting up No. two current conducting plates 16, make No. two current conducting plates 16 be located the inside cavity of sucking disc 4 completely, place when the desktop when

cup

1, 4 bottoms of sucking disc are come first and are laminated with the desktop completely this moment, 4 bottoms of sucking disc outwards expand under the effect of cup 1 self pressure simultaneously, make sucking disc 4 take place to drive No. two current conducting plates 16 and desktop contact pressfitting after deformation, thereby make the desktop drive No. two current conducting plates 16 and current conducting plate 15 contact and intercommunication, prevent that the bottom outward flange of sucking disc 4 from not laminating completely with the desktop and adsorbing and just make two current conducting plate contact intercommunication, thereby make the not good condition of suction effect of sucking disc 4, further improved the stability and the validity of thermos cup when using.

As an embodiment of the present invention, the first button switch 37 and the second button switch 23 are located on the same vertical line, and the outer end of the first button switch 37 is connected with the pressing plate 29, and the other end of the pressing plate 29 extends to the outer end of the second button switch 23; the during operation, when cup 1 need break away from with the fixed department mutually, need press two button switch simultaneously this moment, it is comparatively loaded down with trivial details, through set up clamp plate 29 on button switch 37 this moment, when pressing clamp plate 29, clamp plate 29 can drive two button switch and press simultaneously this moment to the convenience of thermos cup when using has been improved greatly.

As an embodiment of the present invention, an annular cover 30 is connected to the outer end of the pressure relief groove 12, a third spring 31 is connected to the inner end of the annular cover 30, and a piston 32 matched with the pressure relief groove 12 is connected to the other end of the third spring 31; the during operation, when pressure plate 8 upward movement and compress the top cavity of pressure chamber 5, gas in this cavity can carry out the pressure release through driving piston 32 in the inside slip of pressure release groove 12 this moment, the piston 32 that sets up simultaneously can effectually be isolated with external environment and base 3's inside, prevent that external dust impurity and rivers from flowing into pressure chamber 5 inside through pressure release groove 12, thereby to the condition of its inside structure production damage, the result of use and the life of thermos cup have been improved greatly.

As an embodiment of the invention, the base 3 is symmetrically provided with limiting grooves 33, the limiting grooves 33 are connected with limiting rods 34 in a sliding manner, an elastic piece 35 is connected between the top end of each limiting rod 34 and the inner end of each limiting groove 33, and the first conducting plate 15 and the second conducting plate 16 are respectively connected with the limiting rods 34 in a sliding manner; when the two current-conducting plates move under the action of the outside, the two current-conducting plates can vertically slide on the limiting rod 34 and position the current-conducting plates, so that the situation that the two current-conducting plates are inclined or shaken to cause poor connection is prevented; set the gag lever post 34 to the form that can slide from top to bottom in spacing groove 33 inside simultaneously for gag lever post 34 can the retraction spacing groove 33 inside when contacting the pressfitting with the desktop, prevent that sucking disc 4 from leading to the condition that gag lever post 34 and desktop take place to interfere when adsorbing, further improved the stability and the validity of thermos cup when using.

As an embodiment of the present invention, barrier strips 36 made of insulating and hard materials are symmetrically connected to the inner walls of the corresponding suckers 4 between the first conductive plate 15 and the second conductive plate 16, and the free ends of the barrier strips 36 are located in the projection areas of the first conductive plate 15 and the second conductive plate 16 in the vertical direction; the during operation, because two current conducting plates link to each other through elastic element respectively, when the heat preservation cup breaks away from the desktop and no longer fixes, two current conducting plates were rocked and are contacted the intercommunication about taking place easily under external interference this moment, can carry out isolated blend stop 36 that blocks with two current conducting plates through setting up between the two this moment, prevent that two current conducting plates from taking place the condition of contact and feed through circuit under external interference, simultaneously when sucking disc 4 places on the desktop and adsorb with the desktop, outside expanded sucking disc 4 can drive blend stop 36 to the direction motion of keeping away from two current conducting plates this moment, and no longer carry out the separation to two current conducting plates, thereby make the fixed work of thermos cup effectually going on smoothly.

When the vacuum cup is in work, when the vacuum cup is placed on a table top, the table top can press the second conducting plate 16 at the sucker 4, the second conducting plate 16 moves towards the first conducting plate 15 under the action of the table top until the second conducting plate is attached to the first conducting plate, at the moment, a circuit in the vacuum cup is electrified under the condition that the two conducting plates are connected, the first electromagnet 7 can attract the pressure plate 8 after being electrified, the pressure plate 8 slides towards the top end of the pressure cavity 5 and extrudes gas at the top end of the pressure cavity through the pressure release groove 12, meanwhile, a cavity between the bottom end of the pressure cavity and the pressure cavity 5 can be expanded when the pressure plate 8 moves upwards, the pressure in the cavity can be smaller than external atmospheric pressure and is in a negative pressure state, the sucker 4 can be firmly adsorbed on the table top under the action of the internal and external atmospheric pressure, when the vacuum cup needs to be taken off the table top, the current of the electromagnet is disconnected and does not work any more by pressing the first button switch 37, at the moment, the sucker 8 can be reset downwards under the negative pressure in the cavity at the bottom end of the sucker 4 until the internal pressure of the sucker is in a normal pressure state, and the vacuum cup can be taken off the table top conveniently and quickly; by arranging the structure in the vacuum cup, when the vacuum cup is placed on a table top, the cup body 1 can be driven to be automatically fixed on the table top by utilizing the contact of the two current-conducting plates in the vacuum cup, and the fixation of the cup body 1 is not required to be controlled manually, so that the intelligence and the convenience of the vacuum cup in use are greatly improved; meanwhile, the pressure difference inside and outside the sucker 4 is controlled by controlling the movement of the pressure plate 8, so that the sucker 4 is more stable when being adsorbed and separated on a table top, and the effectiveness of the vacuum cup in use is greatly improved.

The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The anti-falling vacuum cup comprises a cup body (1) and a cup cover (2) positioned at the top end of the cup body (1); the method is characterized in that: cup (1) bottom has linked firmly base (3), base (3) bottom is connected with sucking disc (4), base (3) inside pressure chamber (5) have been seted up, pressure chamber (5) bottom is provided with accent (6) that are linked together with sucking disc (4) inside, electro-magnet (7) are installed on the inside top of pressure chamber (5), the inside sliding connection of pressure chamber (5) has pressure plate (8), pressure plate (8) comprise at elastic layer (10) of metal sheet (9) surface with parcel, elastic layer (10) and pressure chamber (5) lateral wall interference fit, just electro-magnet (7) during operation can attract metal sheet (9), be equipped with elastomer (11) between pressure plate (8) and pressure chamber (5) the inner, pressure chamber (5) top is seted up and is linked together with the external world and is let out pressure groove (12), base (3) inside is equipped with battery (13), battery (13) one side is equipped with charge mouth (14), base (3) of base (6) department are gone up and are connected with one number two (15) and base (16) are through number one (17) between base (16) the current conducting plate (6) the current conducting plate (17), one (16) the bottom surface is equipped with the current conducting plate (17) ) When the first conducting plate (15) is in contact with the second conducting plate (16), the first electromagnet (7) can be electrified and work, and a first button switch (37) capable of controlling the first electromagnet (7) to be powered off is arranged on the side wall of the cup body (1); sliding cavities (38) are symmetrically formed in the side wall of the pressure cavity (5), two electromagnets (18) are respectively installed at the inner ends of the sliding cavities (38), clamping blocks (19) capable of being attracted by the two electromagnets (18) are connected to the outer ends of the sliding cavities (38) in a sliding mode, inclined extrusion surfaces (20) are arranged on the bottom sides of the outer ends of the clamping blocks (19), the extrusion surfaces (20) extend out of the outer ends of the sliding cavities (38), two springs (21) are connected between the clamping blocks (19) and the inner ends of the sliding cavities (38), clamping grooves (22) matched with the clamping blocks (19) are respectively formed in the side wall of the pressure plate (8), two button switches (23) capable of controlling the two electromagnets (18) to work are arranged on the side wall of the inner end of the pressure cavity (5), when the top end of the pressure plate (8) moves to be attached to the limiting blocks (24), the clamping grooves (22) are aligned to and communicated with the corresponding sliding cavities (38); the side wall of the inner end of the clamping groove (22) is rotatably connected with a rotating plate (25) through a torsion spring, the top end of the rotating plate (25) is inclined towards one end close to the clamping block (19), a connecting groove (26) communicated with the cavity opening (6) is formed in a pressure plate (8) of the inner end of the clamping groove (22), the bottom end of the rotating plate (25) is connected with a traction rope (27), the other end of the traction rope (27) penetrates through the connecting groove (26) to be connected with the top surface of the first current conducting plate (15), and the first current conducting plate (15) is connected with the base (3) through an elastic block (28); the bottom surface of the second conducting plate (16) is positioned 0.2-1mm above the bottom surface of the sucker (4); the first button switch (37) and the second button switch (23) are located on the same vertical line, the outer end of the first button switch (37) is connected with a pressing plate (29), and the other end of the pressing plate (29) extends to the outer end of the second button switch (23); the outer end of the pressure relief groove (12) is connected with an annular cover (30), the inner end of the annular cover (30) is connected with a third spring (31), and the other end of the third spring (31) is connected with a piston (32) matched with the pressure relief groove (12); the base (3) is symmetrically provided with limiting grooves (33), limiting rods (34) are connected inside the limiting grooves (33) in a sliding mode, elastic pieces (35) are connected between the top ends of the limiting rods (34) and the inner ends of the limiting grooves (33), and the first conducting plate (15) and the second conducting plate (16) are connected with the limiting rods (34) in a sliding mode respectively; the utility model discloses a current-conducting plate (15) and No. two current-conducting plates (16) between correspond sucking disc (4) inner wall on symmetrical connection have insulating and hard material to make blend stop (36), the free end of blend stop (36) is located current-conducting plate (15) and No. two current-conducting plates (16) in the projection region of vertical side.