CN110367779B

CN110367779B - Deformable water cup

Info

Publication number: CN110367779B
Application number: CN201910721586.3A
Authority: CN
Inventors: 金圣桃; 应伟军
Original assignee: Jiyang College of Zhejiang A&F University
Current assignee: Jiyang College of Zhejiang A&F University
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-11-10
Anticipated expiration: 2039-08-06
Also published as: CN110367779A

Abstract

The invention discloses a deformable water cup, which is characterized by comprising a water cup body and a rubber membrane sleeved on the inner wall of the water cup body and used for containing food, wherein the water cup body comprises a cup bottom and a cup wall, the cup wall consists of four sub-cup walls, the four sub-cup walls are uniformly distributed on the cup bottom in an annular shape by taking the circle center of the cup bottom as the center, one ends of the four sub-cup walls are hinged with the cup bottom, the four sub-cup walls and the cup bottom form a containing cavity for opening the rubber membrane and containing the rubber membrane, the deformable water cup is further provided with a fixing assembly, the fixing assembly is used for keeping the upper edges of the rubber membrane fixed at the upper ends of the four sub-cup walls and keeping the center of the rubber membrane fixed at the cup bottom, a control mechanism for unfolding or folding the four sub-cup walls relative to the cup bottom is arranged on the water cup body, the deformable water cup can be used as the water cup, and can be unfolded to be used as a bowl for containing some light-weight foods.

Description

Deformable water cup

Technical Field

The invention relates to a water cup, in particular to a deformable water cup.

Background

The drinking cup and the bowl on the existing market are basically two independent products, and both can be used for household perhaps, but for some outdoor sport enthusiasts, the two can be combined into one to reduce the space, and in addition, in the prior art, the shape of the cup is often fixed, and the cup is lack of flexibility in application.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a deformable water cup which can be used as a water cup and can be unfolded to be used as a bowl to contain light-weight foods.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a deformable water cup, locates the rubber membrane of water cup inner wall and be used for holding food including water cup body and cover, water cup body includes bottom of cup and wall of cup, the wall of cup comprises four sub-walls of cup, four sub-wall of cup uses the centre of a circle of bottom of cup as the center, is annular evenly distributed on the bottom of cup, four the one end of sub-wall of cup all is articulated with the bottom of cup, four sub-wall of cup forms the chamber that holds that struts the rubber membrane and hold the rubber membrane with the bottom of cup, still is provided with fixed subassembly, fixed subassembly is used for keeping the center that the border was fixed at the upper end position of four sub-walls of cup and was kept the rubber membrane to fix at the bottom of cup, be provided with the control mechanism that makes four sub-walls of cup expand or draw in relative bottom of cup on the.

As a further improvement of the invention, the control mechanism comprises a placing base plate, a mounting column, a rotary plate, a guide plate, four sliding blocks and four driving rods, wherein one end of the mounting column is connected to one surface of the cup bottom, which is back to the accommodating cavity, the other end of the mounting column extends back to the cup bottom, the placing base plate is connected to one end of the mounting column, which is far away from the cup bottom, the guide plate is fixedly sleeved on the mounting column, the rotary plate is positioned between the guide plate and the placing base plate and rotatably sleeved on the mounting column, the guide plate is provided with four guide grooves which are through in the thickness direction, the four guide grooves are uniformly distributed by taking the circle center of the guide plate as the center, the guide grooves extend along the radial direction of the guide plate, the four sliding blocks are respectively arranged in the four guide grooves in a sliding manner, one ends of the four driving rods are respectively hinged, the other ends are respectively hinged on one surfaces of the four sliding blocks back to the rotating disc, the driving rod is obliquely arranged relative to the guide disc, the turntable is provided with four arc-shaped guide grooves which are through in the thickness direction, the four arc-shaped guide grooves are uniformly distributed by taking the circle center of the turntable as the center, one end of each arc-shaped guide groove is close to the peripheral wall of the rotary table, the other end of each arc-shaped guide groove is bent towards the axis of the rotary table, one ends of the four sliding blocks, which are far away from the driving rod, respectively extend into the four arc-shaped guide grooves and are abutted against the inner walls of the arc-shaped guide grooves, when the turntable rotates forwards, the four arc-shaped guide grooves drive the four sliding blocks to respectively move towards the mounting column along the guide grooves, the driving rod drives the four sub-cup walls to be closed close to the containing cavity relative to the cup bottom, when the turntable rotates reversely, the four arc-shaped guide grooves drive the four sliding blocks to respectively move away from the mounting column along the guide grooves, and the driving rod drives the four sub-cup walls to be unfolded oppositely to the cup bottom accommodating cavity.

As a further improvement of the invention, the invention is further provided with a locking assembly for locking the rotary table, the locking assembly comprises a first slide bar, a second slide bar, a first spring and a second spring, a first slide groove is arranged on one surface of the placing base plate facing the rotary table, the first slide groove extends back to the direction of the rotary table, a second slide groove communicated with the inner wall of the first slide groove is arranged on the outer peripheral wall of the placing base plate, the second slide groove extends perpendicularly to the direction of the first slide groove, the first slide bar is arranged in the first slide groove in a sliding manner, one end of the first slide bar extends out of the first slide groove, one end of the first spring is connected to the first slide bar, the other end of the first spring is connected to the inner wall of the first slide groove, a plurality of limiting grooves are arranged on one surface of the rotary table facing away from the guide plate, the plurality of limiting grooves are distributed in an arc shape by taking the center of the rotary table as the center, the second slide bar slides and sets up in the second spout, and the second spout is stretched out to its one end, the one end that first slide bar is located first spout is provided with first inclined plane, the one end that the second slide bar is close to first slide bar is provided with the second inclined plane, the second inclined plane is contradicted with first inclined plane, second spring one end is connected on the second slide bar, and the other end is connected on the second spout is inside, the second spring is arranged in when communicating with each other from top to bottom with first spout when one of them spacing groove, orders about the one end that first slide bar stretches out first spout and stretches into in the spacing groove.

As a further improvement of the invention, the fixing component comprises a first fixing part for fixing the rubber membrane on the cup bottom and a second fixing part for fixing the rubber membrane on the walls of the four sub-cups, the second fixing part comprises a mounting block, a pressure rod, a pressure plate and a third spring, the mounting block is arranged on one surface of the wall of the sub-cup, which is back to the containing cavity, a cavity is arranged in the mounting block, through grooves for communicating the cavity with the containing cavity are respectively arranged on the walls of the four sub-cups, the rubber membrane comprises four clamping membranes arranged on the edge of the rubber membrane, the four clamping membranes respectively penetrate through the four through grooves to enter the mounting block, a slide hole positioned above the clamping membranes is arranged on one surface of the mounting block, which is back to the cup bottom, the pressure rod is in sliding connection with the slide hole, one end of the pressure rod extends out of the slide hole, the pressure plate is arranged on one end of the pressure rod extending into the cavity, the other end of the third spring is connected to the pressing plate, the third spring keeps the pressing plate to move towards the placing base plate, and the film clamping is locked on the inner wall of the mounting block by the pressing plate.

As a further improvement of the invention, the first fixing piece comprises a pressing piece and a screw rod, the pressing piece is connected to one end of the screw rod, a threaded hole is formed in one surface of the cup bottom, which is opposite to the mounting column, a through hole is formed in the center of the rubber film, one end of the screw rod, which is far away from the pressing piece, penetrates through the through hole and is in threaded connection with the threaded hole, and the rubber film is clamped between the cup bottom and the pressing piece.

As a further improvement of the invention, the surface of the pressure plate facing the placing chassis is provided with anti-skid grains.

The invention has the beneficial effects that: the four sub-cup walls can be unfolded or folded relative to the cup bottom through the control mechanism, and the rubber film sleeved on the inner walls of the sub-cup walls and used for containing food is driven to be unfolded or folded, namely the cup can be used as a water cup or a bowl, so that the water cup and the bowl which are two independent products can be combined into a whole, the occupied space is reduced, and the use flexibility of the cup is improved.

Drawings

FIG. 1 is a front view of the present invention in a state where the sub-cup walls are unfolded;

FIG. 2 is a front cross-sectional view of the present invention with the sub-cup walls in a collapsed condition;

FIG. 3 is a schematic view of a guide slot of the guide plate;

FIG. 4 is a schematic view of an arc-shaped guide groove of a turntable

FIG. 5 is an enlarged schematic view of the locking assembly of FIG. 2;

FIG. 6 is a schematic view of a limiting groove of the turntable;

FIG. 7 is a plan view of the present invention with the rubber film removed

FIG. 8 is a top view of the present invention with the first attachment member rotated out of the threaded hole;

fig. 9 is a cross-sectional view of the insertion film extending into the mounting block in the horizontal direction.

Reference numerals: 1. a cup body; 10. an accommodating chamber; 11. a cup bottom; 12. a sub-cup wall; 120. a through groove; 2. a rubber film; 21. film clamping; 31. a first fixing member; 32. a second fixing member; 311. tabletting; 312. a screw; 313. a threaded hole; 321. mounting blocks; 3210. a cavity; 3211. a slide hole; 322. a pressure lever; 323. pressing a plate; 324. a third spring; 4. a control mechanism; 41. mounting a column; 42. a turntable; 421. an arc-shaped guide groove; 422. a limiting groove; 43. a guide plate; 431. a guide groove; 44. a drive rod; 45. placing a chassis; 451. a first chute; 452. a second chute; 46. a slider; 5. a locking assembly; 51. a first slide bar; 511. a first inclined plane; 52. a second slide bar; 521. a second inclined plane; 53. a first spring; 54. a second spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals.

Referring to fig. 1 to 9, the deformable cup of the present embodiment includes a cup body 1 and a rubber membrane 2 covering an inner wall of the cup body 1 and used for containing food, the cup body 1 comprises a cup bottom 11 and cup walls, the cup walls are composed of four sub-cup walls 12, the four sub-cup walls 12 are uniformly distributed on the cup bottom 11 in an annular shape by taking the circle center of the cup bottom 11 as the center, one ends of the four sub-cup walls 12 are hinged with the cup bottom 11, the four sub-cup walls 12 and the cup bottom 11 form a containing cavity 10 for expanding the rubber film 2 and containing the rubber film 2, and a fixing component is further arranged, the fixing component is used for keeping the upper edge of the rubber membrane 2 fixed at the upper end positions of the four sub-cup walls 12 and keeping the center of the rubber membrane 2 fixed at the cup bottom 11, the cup body 1 is provided with a control mechanism 4 which enables the four sub-cup walls 12 to be unfolded or folded relative to the cup bottom 11.

Four sub-cup walls 12 in this embodiment are articulated in the front and back both sides and the left and right sides of bottom of cup 11 two bisymmetry respectively, this embodiment is under initial condition, four sub-cup walls 12 expand with bottom of cup 11 relatively, four cup walls and bottom of cup 11 form one and hold chamber 10, through fixed subassembly, can make rubber membrane 2 fix on sub-cup wall 12 and bottom of cup 11, and this rubber membrane 2 and a plurality of sub-cup wall 12 towards the one side that holds chamber 10 and bottom of cup 11 towards the one side laminating that holds chamber 10, fixed subassembly can be for setting up at sub-cup wall 12 towards the one side that holds chamber 10 and bottom of cup 11 towards the draw-in groove that holds chamber 10 one side, 2 edge of rubber membrane and center can be provided with the fixture block that has elastic deformation ability, can realize fixedly through fixture block embedding draw-in groove, the theory of operation of this embodiment is as follows: when the water cup needs to be used, the water cup can be used through the control mechanism 4, the four sub-cup walls 12 are folded in relative to the cup bottom 11, namely, one end, far away from the cup bottom 11, of each sub-cup wall 12 rotates towards the containing cavity 10, the rubber film 2 is driven to deform, the water cup with a similar cylindrical appearance is obtained, when the water cup needs to be changed into a bowl, the control mechanism 4 is used again, the four sub-cup walls 12 are unfolded relative to the cup bottom 11, namely, one end, far away from the cup bottom 11, of each sub-cup wall 12 rotates back to the containing cavity 10, the rubber film 2 is driven to deform, the bowl with a similar inverted cone appearance is obtained, the rubber film 2 has elasticity, the rubber film 2 can be unfolded by the four sub-cup walls 12, and under the supporting effect of the four sub-cup walls 12, the rubber film 2.

According to the invention, through the control mechanism 4, the four sub-cup walls 12 can be unfolded or folded relative to the cup bottom 11, and the rubber film 2 which is sleeved on the inner walls of the sub-cup walls 12 and used for containing food is driven to be unfolded or folded, namely, the cup can be used as a water cup or a bowl, so that the water cup and the bowl which are two independent products can be combined into a whole, the occupied space is reduced, and the use flexibility of the cup is increased.

As a modified specific embodiment, the control mechanism 4 includes a placement chassis 45, a mounting column 41, a rotation disc 42, a guiding disc 43, four sliding blocks 46 and four driving rods 44, one end of the mounting column 41 is connected to a surface of the cup bottom 11 facing away from the accommodating cavity 10, the other end extends facing away from the cup bottom 11, the placement chassis 45 is connected to an end of the mounting column 41 away from the cup bottom 11, the guiding disc 43 is fixedly sleeved on the mounting column 41, the rotation disc 42 is located between the guiding disc 43 and the placement chassis 45, and is rotatably sleeved on the mounting column 41, four guiding grooves 431 penetrating in the thickness direction are provided on the guiding disc 43, the four guiding grooves 431 are uniformly distributed with the center of the guiding disc 43 as the center, the guiding grooves 431 are arranged to extend in the radial direction of the guiding disc 43, the four sliding blocks 46 are respectively slidably arranged in the four guiding grooves 43, one end of each of the four driving rods 44 is hinged to one surface of the four sub-cup walls 12, which faces away from the accommodating cavity 10, while the other end is hinged to one surface of each of the four sliding blocks 46, which faces away from the rotating disc 42, while the other end is obliquely arranged relative to the guiding disc 43, the rotating disc 42 is provided with four arc-shaped guide slots 421 through in the thickness direction, the four arc-shaped guide slots 421 are uniformly distributed around the center of the rotating disc 42, one end of each of the arc-shaped guide slots 421 is close to the outer peripheral wall of the rotating disc 42, while the other end is bent towards the axis of the rotating disc 42, while the ends of the four sliding blocks 46, which are far away from the driving rods 44, extend into the four arc-shaped guide slots 421 and abut against the inner walls of the arc-shaped guide slots 421, when the rotating disc 42 rotates forwards, the four arc-shaped guide slots 421 drive, when the rotating disc 42 rotates reversely, the four arc-shaped guide slots 421 drive the four sliding blocks 46 to move away from the mounting column 41 along the guide slots 431, and the four sub-cup walls 12 are unfolded back to the accommodating cavity 10 relative to the cup bottom 11.

Four arc guide slot 421 on the carousel 42 and four guide groove 431 one-to-one settings on the guide dish 43 in this implementation, the one end that arc guide slot 421 are close to carousel 42 periphery wall is located the guide groove 431 below that corresponds, four actuating levers 44 set up with four sliders 46 one-to-one on four guide groove 431 respectively, the one end that ion cup wall 12 was kept away from to actuating lever 44 articulates in slider 46 one side of carousel 42 dorsad to one side, the other end is to holding chamber 10 one side slope, and connect in sub-cup wall 12 one side of holding chamber 10 dorsad, the one end that actuating lever 44 was kept away from to slider 46 stretches into in four arc guide slot 421 respectively, control mechanism 4 theory of operation in this embodiment is as follows: when the turntable 42 rotates in the forward direction, the inner wall of the arc-shaped guide groove 421 abuts against the sliding block 46, the sliding block 46 moves along the arc-shaped guide groove 421 relative to the turntable 42 and approaches to the axis of the turntable 42, because the guide plate 43 is provided with the guide groove 431 extending in the radial direction of the guide plate 43, because of the limitation of the guide groove 431, the sliding block 46 moves towards the mounting column 41 along the guide groove 431, the driving rod 44 hinged on the sliding block 46 drives the sub-cup walls 12 to close to the accommodating cavity 10 relative to the cup bottom 11, the four sub-cup walls 12 rotate to be vertical to the cup bottom 11, the four sub-cup walls 12 and the cup bottom 11 form a cup shape, at the moment, the sliding block 46 is positioned at one end of the arc-shaped guide groove 421, which is close to the axis of; when the turntable 42 starts to rotate reversely, the inner wall of the arc-shaped guide groove 421 abuts against the sliding block 46, the sliding block 46 moves reversely along the arc-shaped guide groove 421 relative to the turntable 42 and approaches to the outer peripheral wall of the turntable 42, similarly, the sliding block 46 moves away from the mounting column 41 along the guide groove 431, the driving rod 44 hinged on the sliding block 46 drives the rotor cup wall 12 to unfold relative to the cup bottom 11 and away from the accommodating cavity 10 until the sliding block 46 moves to one end of the arc-shaped guide groove 421 which is close to the outer peripheral wall of the turntable 42, at the moment, the turntable 42 can not rotate in the same direction any more, and the four rotor cup walls 12 and the cup bottom 11 form a bowl shape.

As an improved specific embodiment, a locking assembly 5 for locking the rotary disc 42 is further provided, the locking assembly 5 includes a first sliding rod 51, a second sliding rod 52, a first spring 53 and a second spring 54, a first sliding groove 451 is provided on a surface of the placing chassis 45 facing the rotary disc 42, the first sliding groove 451 extends in a direction away from the rotary disc 42, a second sliding groove 452 communicated with an inner wall of the first sliding groove 451 is provided on an outer peripheral wall of the placing chassis 45, the second sliding groove 452 extends in a direction perpendicular to the first sliding groove 451, the first sliding rod 51 is slidably disposed in the first sliding groove 451, one end of the first sliding rod 51 extends out of the first sliding groove 451, one end of the first spring 53 is connected to the first sliding rod 51, the other end is connected to the inner wall of the first sliding groove 451, a plurality of limiting grooves 422 are provided on a surface of the rotary disc 42 facing away from the guide disc 43, the plurality of limiting grooves 422 are distributed in an arc shape with a center of the rotary disc 42 as a center, the first spring 53 is used for keeping the first slide bar 51 moving towards the first sliding groove 451, the second slide bar 52 is slidably disposed in the second sliding groove 452, one end of the second slide bar 52 extends out of the second sliding groove 452, one end of the first slide bar 51, which is located at the first sliding groove 451, is provided with a first inclined surface 511, one end of the second slide bar 52, which is close to the first slide bar 51, is provided with a second inclined surface 521, the second inclined surface 521 abuts against the first inclined surface 511, one end of the second spring 54 is connected to the second slide bar 52, the other end of the second spring is connected to the inside of the second sliding groove 452, and the second spring 54 is used for driving one end of the first slide bar 51, which extends out of the first sliding groove 451, to extend into the limiting groove 422 when one of the limiting grooves 422 is vertically.

In this embodiment, the inner diameter of the limiting groove 422 is slightly larger than the outer diameter of the first sliding rod 51, so as to ensure that the first sliding rod 51 can extend into the limiting groove 422 to lock the rotating disc 42, and the rotating disc 42 is not easy to rotate in the locked state, in this embodiment, in the initial state, the locking assembly 5 has locked the rotating disc 42, when the rotating disc 42 needs to be rotated, the end of the second sliding rod 52 extending out of the second sliding groove 452 is manually grasped, the second sliding rod 52 is slid back to the direction of the second sliding groove 452, the second spring 54 is deformed, since the ends of the first sliding rod 51 and the second sliding rod 52 close to each other are respectively provided with the first inclined surface 511 and the second inclined surface 521 which are mutually abutted, and the second spring 54 has an elastic force driving the first sliding rod 51 to move towards the first sliding groove 451, under the elastic force, the first sliding rod 51 moves towards the first sliding groove 451 and is separated from the limiting groove 422, at this time, the rotating disc 42 is rotated, the first inclined surface 511 and, when the rotating disc 42 is rotated to a position desired by a user and the rotating disc 42 needs to be locked again, when the upper portion of the first sliding groove 451 is ensured to have the limiting groove 422 communicated with the upper portion, the holding of the second sliding rod 52 is cancelled, the second spring 54 is restored, the restored elastic force of the second spring 54 is larger than the elastic force of the first spring 53, the second sliding rod 52 is driven to move towards the second sliding groove 452, and the first sliding rod 51 extends into the limiting groove 422 under the interference of the first inclined surface 511 and the second inclined surface 521, so that the rotating disc 42 is locked again. The second sliding rod 52 is arranged on the outer peripheral wall of the placing chassis 45, so that when the placing chassis 45 is placed on a plane, a user can conveniently slide the second sliding rod 52 to release the locking state of the rotating disc 42.

As a modified specific embodiment, the fixing assembly includes a first fixing member 31 for fixing the rubber membrane 2 on the cup bottom 11 and a second fixing member 32 for fixing the rubber membrane 2 on the four sub-cup walls 12, the second fixing member 32 includes a mounting block 321, a pressure lever 322, a pressure plate 323 and a third spring 324, the mounting block 321 is disposed on a side of the sub-cup wall 12 facing away from the accommodating cavity 10, a cavity 3210 is disposed in the mounting block 321, through slots 120 for communicating the cavity 3210 with the accommodating cavity 10 are respectively disposed on the four sub-cup walls 12, the rubber membrane 2 includes four clamping membranes 21 disposed on an edge of the rubber membrane 2, the four clamping membranes 21 respectively pass through the four through slots 120 into the mounting block 321, a sliding hole 3211 located above the clamping membranes 21 is disposed on a side of the mounting block 321 facing away from the cup bottom 11, the pressure lever 322 is slidably connected with the sliding hole 3211, one end of which extends out of the sliding hole 3211, the pressing plate 323 is arranged at one end of the pressing rod 322 extending into the cavity 3210, one end of the third spring 324 is connected to the cavity 3210, the other end is connected to the pressing plate 323, the third spring 324 keeps the pressing plate 323 moving towards the placing chassis 45, and the film clamp 21 is locked on the inner wall of the mounting block 321 by the pressing plate 323.

In the embodiment, in an initial state, the second fixing member 32 fixes the rubber film 2, that is, the film 21 enters the cavity 3210 of the mounting block 321 through the through slot 120 and is located between the inner wall of the cavity 3210 and the pressing block, the film 21 is locked on the inner wall of the mounting block 321 by the pressing plate 323 under the elastic force of the third spring 324, when the fixing action of the second fixing member 32 on the rubber film 2 needs to be released, the pressing plate 323 stretches out of one end of the sliding hole 3211 by moving the pressing rod 322, the third spring 324 compresses, and the pressing plate 323 releases the abutting state with the film 21, so that the film 21 can be taken out from the cavity 3210, and after all the film 21 are taken out, the first fixing member 31 releases the fixing state of the rubber film 2, so as to take out the whole rubber film 2 for cleaning or replacement, thereby increasing the practicability of the invention.

As a modified specific embodiment, the first fixing member 31 includes a pressing piece 311 and a screw 312, the pressing piece 311 is connected to one end of the screw 312, a threaded hole 313 is formed on a surface of the cup bottom 11 facing away from the mounting post 41, a through hole is formed in the center of the rubber film 2, one end of the screw 312, which is far away from the pressing piece 311, passes through the through hole and is in threaded connection with the threaded hole 313, and the rubber film 2 is clamped between the cup bottom 11 and the pressing piece 311.

Through the technical scheme, the rubber film 2 is clamped between the cup bottom 11 and the pressing sheet 311, the rubber film 2 is fixed, a rubber ring for preventing water leakage can be sleeved in the through hole of the rubber film 2, when the fixation needs to be removed, the pressing sheet 311 can be rotated to enable the screw 312 to be separated from the threaded hole 313, the first fixing piece 31 is separated from the cup bottom 11, and the rubber film 2 can be taken out for cleaning or replacement under the condition that the second fixing piece 32 removes the fixation state of the rubber film 2, so that the practicability of the invention is improved.

As a modified specific embodiment, the surface of the pressing plate 323 facing the placing bottom plate 45 is provided with anti-skid lines.

Through the technical scheme, the anti-skid lines increase the friction force between the pressing plate 323 and the clamping film 21, and the upper limit of the weight of the rubber film 2 for containing food is improved.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A deformable water cup is characterized in that: comprises a water cup body (1) and a rubber membrane (2) which is sleeved on the inner wall of the water cup body (1) and is used for containing food, wherein the water cup body (1) comprises a cup bottom (11) and a cup wall, the cup wall is composed of four sub-cup walls (12), the four sub-cup walls (12) are annularly and uniformly distributed on the cup bottom (11) by taking the circle center of the cup bottom (11) as the center, one ends of the four sub-cup walls (12) are hinged with the cup bottom (11), the four sub-cup walls (12) and the cup bottom (11) form a containing cavity (10) for opening the rubber membrane (2) and containing the rubber membrane (2), a fixing component is further arranged and used for keeping the upper edge of the rubber membrane (2) fixed at the upper end positions of the four sub-cup walls (12) and keeping the center of the rubber membrane (2) fixed at the cup bottom (11), a control mechanism (4) for enabling the four sub-cup walls (12) to be unfolded or folded relative to the cup bottom (11) is arranged on the water cup body (1),

the control mechanism (4) comprises a placing chassis (45), an installing column (41), a turntable (42), a guiding disc (43), four sliders (46) and four driving rods (44), one end of the installing column (41) is connected to one face, back to the containing cavity (10), of the cup bottom (11), the other end of the installing column (41) extends back to the cup bottom (11), the placing chassis (45) is connected to one end, far away from the cup bottom (11), of the installing column (41), the guiding disc (43) is fixedly sleeved on the installing column (41), the turntable (42) is located between the guiding disc (43) and the placing chassis (45), the rotating disc is sleeved on the installing column (41), four guiding grooves (431) are arranged on the guiding disc (43) in a thickness direction penetrating mode, the four guiding grooves (431) are evenly distributed by taking the circle center of the guiding disc (43) as the center, and the guiding grooves (431) extend and are arranged along the radial direction of the guiding disc (43), four sliding blocks (46) are respectively arranged in four guide grooves (431) in a sliding manner, one ends of four driving rods (44) are respectively hinged on one surface of four sub-cup walls (12) which are back to the accommodating cavity (10), the other ends of the four driving rods (44) are respectively hinged on one surface of four sliding blocks (46) which are back to a rotary table (42), the driving rods (44) are obliquely arranged relative to a guide disc (43), four arc guide grooves (421) which are through in the thickness direction are arranged on the rotary table (42), the four arc guide grooves (421) are uniformly distributed by taking the circle center of the rotary table (42) as the center, one ends of the arc guide grooves (421) are close to the peripheral wall of the rotary table (42), the other ends of the arc guide grooves are arranged in a bent manner towards the axis center of the rotary table (42), and four ends, far away from the driving rods (44), of the sliding blocks (46) are respectively extended into, when the turntable (42) rotates forwards, the four arc-shaped guide grooves (421) drive the four sliding blocks (46) to move towards the mounting column (41) along the guide grooves (431), the driving rod (44) drives the four sub-cup walls (12) to be close to the containing cavity (10) relative to the cup bottom (11) and to be folded, when the turntable (42) rotates backwards, the four arc-shaped guide grooves (421) drive the four sliding blocks (46) to move away from the mounting column (41) along the guide grooves (431), and the driving rod (44) drives the four sub-cup walls (12) to be unfolded back to the containing cavity (10) relative to the cup bottom (11).

2. A deformable cup as claimed in claim 1, wherein: the locking assembly (5) for locking the rotary table (42) is further arranged, the locking assembly (5) comprises a first sliding rod (51), a second sliding rod (52), a first spring (53) and a second spring (54), a first sliding groove (451) is formed in one face, facing the rotary table (42), of the placement chassis (45), the first sliding groove (451) extends in the direction opposite to the rotary table (42), a second sliding groove (452) communicated with the inner wall of the first sliding groove (451) is formed in the peripheral wall of the placement chassis (45), the second sliding groove (452) extends in the direction perpendicular to the first sliding groove (451), the first sliding rod (51) is arranged in the first sliding groove (451) in a sliding mode, one end of the first sliding rod extends out of the first sliding groove (451), one end of the first spring (53) is connected to the first sliding rod (51), and the other end of the first spring is connected to the inner wall of the first sliding groove (451), the side, back to the guide disc (43), of the rotary disc (42) is provided with a plurality of limiting grooves (422), the limiting grooves (422) are distributed in an arc shape with the center of a circle of the rotary disc (42) as the center, the first spring (53) is used for keeping the first sliding rod (51) moving towards the first sliding groove (451), the second sliding rod (52) is arranged in the second sliding groove (452) in a sliding manner, one end of the second sliding rod (52) extends out of the second sliding groove (452), one end, located at the first sliding groove (451), of the first sliding rod (51) is provided with a first inclined surface (511), one end, close to the first sliding rod (51), of the second sliding rod (52) is provided with a second inclined surface (521), the second inclined surface (521) abuts against the first inclined surface (511), one end of the second spring (54) is connected to the second sliding rod (52), the other end of the second spring is connected to the inside of the second sliding groove (452), and the second spring (54) is used for enabling one limiting groove (422) to be communicated with the, one end of the first sliding rod (51) extending out of the first sliding chute (451) is driven to extend into the limiting groove (422).

3. A deformable cup as claimed in claim 1, wherein: the fixing assembly comprises a first fixing piece (31) for fixing the rubber membrane (2) on the cup bottom (11) and a second fixing piece (32) for fixing the rubber membrane (2) on four sub-cup walls (12), the second fixing piece (32) comprises an installation block (321), a pressure rod (322), a pressure plate (323) and a third spring (324), the installation block (321) is arranged on one surface of each sub-cup wall (12) facing away from the accommodating cavity (10), a cavity (3210) is arranged in each installation block (321), through grooves (120) for communicating the cavity (3210) with the accommodating cavity (10) are respectively arranged on the four sub-cup walls (12), the rubber membrane (2) comprises four clamping membranes (21) arranged on the edges of the rubber membrane (2), the four clamping membranes (21) respectively penetrate through the four through grooves (120) to enter the installation block (321), and sliding holes (3211) located above the clamping membranes (21) are arranged on one surface of the installation block (321) facing away from the cup bottom (11), the pressing rod (322) is connected with the sliding hole (3211) in a sliding mode, one end of the pressing rod extends out of the sliding hole (3211), the pressing plate (323) is arranged at one end, extending into the cavity (3210), of the pressing rod (322), one end of the third spring (324) is connected to the cavity (3210), the other end of the third spring is connected to the pressing plate (323), the third spring (324) keeps the pressing plate (323) to move towards the placement base, and the film clamping film (21) is locked on the inner wall of the installation block (321) through the pressing plate (323).

4. A deformable cup as claimed in claim 3, wherein: the first fixing piece (31) comprises a pressing piece (311) and a screw rod (312), the pressing piece (311) is connected to one end of the screw rod (312), a threaded hole (313) is formed in the surface, back to the mounting column (41), of the cup bottom (11), a through hole is formed in the center of the rubber film (2), one end, far away from the pressing piece (311), of the screw rod (312) penetrates through the through hole to be in threaded connection with the threaded hole (313), and the rubber film (2) is clamped between the cup bottom (11) and the pressing piece (311).

5. A deformable cup as claimed in claim 3, wherein: and anti-skid grains are arranged on one surface of the pressing plate (323) facing the placing base plate (45).