CN103786966B - Liquid device - Google Patents

Abstract

The invention provides a liquid device which is used for containing liquid substances. The liquid device comprises an upper cap, a lower cap and a bottle body. The lower cap is located between the upper cap and the bottle body. When the upper cap and the lower cap are buckled, force needs to be exerted on two mutually perpendicular faces so that the upper cap and the lower cap can be released. The liquid device is stable in clamping, good in sealing effect and free of potential safety hazards.

Description

A kind of liquid device

【Technical field】

The present invention relates to a kind of device for containing liquid, more particularly to a kind of good sealing effect, easy to use, carrying side Just, it is easy to the liquid device of processing.

【Background technology】

The storage of fluid product is always the major issue considered required for fluid product manufacturers with transport, especially Some dangerous liquids are easy to the storage of volatilization liquid and transport, and good seal performance is easy to use, simple structure Liquid device is always the pursuit of each big liquid form product manufacturer and fluid product user.

Liquid device for containing liquid object is seen everywhere, common mineral water bottle, balsam bottle, perfume in such as living Bottle etc..Conventional liquid device includes three parts, and one is body portion, and two is mouth portion, and three is covering part.It is common Liquid device bottle neck and bottle cap between generally using simple fastening structure or screw thread twist-on structure, the simple bottle for fastening Lid structure very easily comes off in use and causes liquid outflow in bottle, especially the more crowded liquid of storage environment Device, without tight interface arrangment, liquid device somewhat receptor site extruding is easy for liquid outflow occur.Additionally, simple button Close structure poor to the sealing effectiveness of bottle neck, once liquid device is squeezed, be just easy to pour out the liquid in liquid device, especially It is dangerous materials or precious liquid that it is equipped with needing carrying with the liquid that the liquid substance that uses or liquid device contained, The liquid device of this simple fastening structure then can not be used.If adopting twist-on structure between bottle neck and bottle cap, not only hold Easily there is above-mentioned screw thread twist-on structure to be easily damaged in use and aging problem, and do not use also very not It is convenient.

For existing simple fastening structure and screw thread twist-on structure, its most important is the liquid of both structures The open method of body device is extremely simple, when liquid device is placed on the exposed to contact environment of child, it is easy to beaten by child Open, cause liquid substance to leak, or even be susceptible to situation about eating by mistake, therefore, existing liquid device is especially seated in child It is capable of the liquid device of contact position, it is a kind of potential potential safety hazard.

【The content of the invention】

Unstable to overcome current liquid device to there is clamping, it is easy to leak, the problem of potential potential safety hazard, the present invention is carried Gone out a kind of clamping stablize, good seal performance, without potential safety hazard and simple structure liquid device.

The present invention provides a kind of liquid device, and for containing liquid substance, the liquid device includes being covered on one, a lower cover with One bottle, lower cover is located between upper lid and bottle, and under upper lid with lower cover buckling state, upper lid is needed in phase with the releasing of lower cover Mutually exert a force in two vertical planes, the force direction in the first plane is tangent with upper lid side, and the force in the second plane is Two opposing forces being parallel to each other and force direction is towards inside upper lid, between the upper lid and lower cover at least one pair of phase is provided with After mutually coordinating the card article and bayonet socket of clamping, card article to include that an overhead structure, upper lid are fastened with lower cover, the overhead structure enters card inlet It is interior that lower cover is connected together with upper lid, cover upward in second plane it is internal apply it is described two be parallel to each other it is contrary Power, the clamping between the overhead structure and bayonet socket is released.

Preferably, lower cover is provided with a depressed area with upper lid side, and two depressed area matches, and connects to be formed One is easy to open the concave curvature of operation.

Preferably, upper lid is fixedly connected with open-close type between lower cover.

Preferably, lower cover includes a taper bottle neck, and upper lid inside includes being provided with bottle neck groove, when upper lid is fastened with lower cover, Opposing seal between bottle mouth and bottle groove.

Preferably, lower cover further includes a box body, and a boss, lower cover transits to taper bottle neck by box body from boss, on Cover inside and an interface arrangment being engaged with concave curvature is provided between boss.

The present invention also provides a kind of liquid device, and for containing liquid substance, the liquid device includes being covered on one, a lower cover With a bottle, lower cover is located between upper lid and bottle, upper to cover the open-close type connection and lower cover between, is provided between upper lid and lower cover Three interface arrangments, wherein two interface arrangments are oppositely arranged, another interface arrangment is located between two relative interface arrangments, Under upper lid and lower cover buckling state, lid needs to impose three power simultaneously in orthogonal two planes with lower cover in releasing, The force application location of three power corresponds to three interface arrangments, and the power being applied in the second plane is tied to act on two relative clampings Two power at structure, two power force directions apply power force side on the first plane on the contrary and towards inside upper lid It is described to be oppositely arranged to tangent with upper lid side and perpendicular to the force direction of two power being applied in second plane Two interface arrangments are the card article and bayonet socket of a pair clampings that cooperate, after card article includes that an overhead structure, upper lid are fastened with lower cover, The overhead structure enters in card inlet lower cover is connected together with upper lid, covers inside upward at described two relative interface arrangments and applies Plus described two opposing forces, the clamping releasing between the overhead structure and bayonet socket.

Preferably, upper lid is made with bottle using PET or PE or PP or PVC or PS.

Compared with prior art, the section of fluid present invention device point three design, the liquid device of arbitrary shape can be using this Realizing, due to structure matching between lid and bottleneck, this two for structure described by the variant embodiment of invention and the present invention By connector between person, the card article and bayonet socket of cooperation, the arc strip being engaged is realized with arcuate groove and bottle neck with bottle neck groove Omnibearing positioning clamping, liquid device will not easily because cause bottleneck to come off with other articles extruding, it is to avoid existing Liquid device lid easily come off and cause the problem that liquid flows out, and bottle neck matches with bottle neck slot structure, and bottle neck can be just It is brought into close contact in bottle neck groove, it ensure that when lid and bottleneck are fastened, between the two opposing seal.Above all beat Opening the liquid device under buckling state must have orthogonal power while acting on lid, i.e., three power act on lid simultaneously Body, the direction of one of power, perpendicular to the direction of two other power, is exactly specifically that two of which power is corresponded at card article, Towards lid portion inside, another power is acted at the fingerprint groove between lid and bottleneck force direction, and example direction is towards on lid Side, under normal circumstances, user needs two handss to act on lid simultaneously, and imposing the power in three directions can beat lid Open, so in carrying process, liquid device will not easily be extruded unlatching, and liquid device is placed on the ground that child can contact Liquid device can not be opened easily, liquid substance is poured out or eaten by mistake, be solved well existing for liquid device by side, child Potential safety hazard.Fluid present invention device uses square structure, and its is easy to carry, and space availability ratio is high, and its outside is adopted With rounding or chamfering structure, comfortable feel while making the good looking appearance of liquid device generous.There is its side to be provided with again Fingerprint groove, the recess employs ergonomic designs, operates comfort and convenient.In sum, disclosed liquid dress Put not only clamping to stablize, good sealing effect, while also there is no potential safety hazard etc..

【Description of the drawings】

Fig. 1 is the dimensional structure diagram of fluid present invention device, and the liquid device includes a lid, a bottleneck and one bottle Body.

Fig. 2 is the structural blast schematic diagram of fluid present invention device.

Fig. 3 is the structural representation of fluid present invention device open mode.

Fig. 4 be liquid device shown in Fig. 1 bottleneck and bottle between coordinate dimensional structure diagram.

Fig. 5 is the bottleneck dimensional structure diagram shown in Fig. 1.

Fig. 6 is the cross section structure diagram at the bottleneck A-A shown in Fig. 4.

Fig. 7 is the lid portion inside dimensional structure diagram shown in Fig. 1.

Fig. 8 is the cross section structure diagram at the lid B-B shown in Fig. 6.

Fig. 9 is the bottleneck and lid fit structure schematic diagram of liquid device.

Figure 10 is the operation chart that liquid device opens lid.

【Specific embodiment】

In order that the purpose of the present invention, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and embodiment, The present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only to explain the present invention, It is not intended to limit the present invention.

Fig. 1 to Fig. 3 is referred to, being rectangle the liquid device 10 of box body shape is used to contain various liquid substances, the liquid Device 10 includes lid 11, a lower cover 15 and a bottle 17 on, upper lid 11, mutual of structure between lower cover 15 and bottle 17 Match somebody with somebody, lower cover 15 is located between upper lid 11 and bottle 17, a connection piece 13, the connector 13 are included between upper lid 11 and lower cover 15 In upper lid 11 and the edge of lower cover 15, upper lid 11 realizes that opening and closing type is connected with lower cover 15 by the connector 13, and upper lid 11 can It is fastened on lower cover 15.Separate manufacture between lower cover 15 and bottle 17 is formed, in liquid device 10 in a state of use, Both are fixedly connected.Between upper lid 11 and lower cover 15, the structure for cooperating is provided between lower cover 15 and bottle 17, makes bottle 17, lower cover 15 and upper lid 11 can synthesize the receiving space of a sealing to contain various liquid, make the liquid in liquid device 10 Will not flow out from lower cover 15 or upper lid 11.

Liquid device 10 is made using plastic material, and the distance at the supreme top of lid 11 in the bottom of 10 bottle of liquid device 17 is determined Justice is the height of liquid device 10, and the length of liquid device 10 is more than the width of liquid device 10, its length and width indication side Do not set, the length, width and height of liquid device 10 are (1-5) than scope：1：(0.5-10), it is preferably 2:1:4.Liquid device 10 Corner be provided with chamfering, the dimensional parameters of the chamfering can choose at random.The surface of liquid device 10 is airflow design, attractive in appearance It is generous, comfortable feel.The height of bottle 17 accounts for the 50%-95% of the height of liquid device 10, and preferably 80%.The height of lower cover 15 accounts for liquid The 10%-50% of the height of device 10, preferably 35%.The height of upper lid 11 accounts for the 5%-45% of the height of liquid device 10, and preferably 20%.

The shape of liquid device 10 is not restricted to the shape of quadrangle box 151, its can be cylinder, flat tube shape, triangular prism, no The other shapes such as regular cube.Connector 13 between upper lid 11 and lower cover 15 can be hinge-type etc. other around fixing axle revolve Turn the attachment structure opened, it is also possible to be separately independently arranged.The outside of liquid device 10 can design various patterns, also can be in its table Face attaches upper various patterned layer.Bottle 17 can also be integrally formed making with lower cover 15.

Refer to Fig. 4, bottle 17 for hollow structure square container, its as liquid device 10 liquid storing part, for holding Receive liquid substance.Structure is corresponding between the top of bottle 17 and the bottom of lower cover 15, is provided with what is be mutually matched between the two Interface arrangment and sealing structure, bottle 17 can robust seal be connected in lower cover 15.

The material of bottle 17 is not limited, and can select different type material according to the property of contained liquid.Such as PET (Polyethylene terephthalate polyethylene terephthalate) or PE (Polyethylene polyethylene) or PP (Polypropylene polypropylene) or PVC (polyvinyl chloride polrvinyl chloride) or PS (Polystyrene polyphenyl second Alkene) etc., it is preferably PET material, and bottle 17 is transparent, and it is easy to user to be immediately seen the surpluses of liquid.Bottle 17 Shape also do not limit, it can be cylinder, bullet, irregular cube etc..

Fig. 5 and Fig. 6 is referred to, lower cover 15 includes a box body 151, a boss 153 and a bottle neck 155, and boss 153 is located at box Between body 151 and bottle neck 155, box body 151, boss 153 is integrally formed with bottle neck 155 and makes.Box body 151 is that rectangle is hollow Box-like, the side wall of box body 151 is slightly convex towards the outside of lower cover 15 in the short transverse of liquid device 10, makes the side of box body 151 Wall is arc-shaped curved surface.The upper face center of box body 151 projects upwards and to form an OBL boss 153 (position name adopts Fig. 7 Relative definition under view, non-absolute position), the shape of boss 153 is identical with the shape of box body 151, except relative with connector 13 Side to the inside of lower cover 15 into outside certain radian depression, it is also slightly convex towards the outside of lower cover 15 in side wall.Boss 153 is central The bottle neck 155 of a raised taper, liquid device 10 changes the flow of liquid in bottle 17 by the bottle neck 155, in bottle 17 Liquid is poured out by bottle neck 155 in a drop-wise.The bottom size of boss 153 is less than the top dimension of box body 151, in the top surface of box body 151 Between the bottom of boss 153 include a box body edge 1513, the box body edge 1513 around boss 153 surrounding, box body 151 It is connected by the transition of box body side 1513 with boss 153.The box body edge 1513 is provided with two on the both sides of connector 13 Bayonet socket 1511, two bayonet sockets 1511 are symmetricly set on the both sides of boss 153, minimum of the position corresponding to the lateral projections of box body 151 Curvature.Bayonet socket 1511 is rectangle strip hole, and it runs through box body 151 and forms blocked hole.The opposite joints 13 on box body 151 A lower concave part 1515 is formed at the side of place side, the lower concave part 1515 is located at the edge of the side of box body 151 into lower cover 15 Portion is recessed.An arcuate groove 1531 is formed on the face of boss 153 with the same side of lower concave part 1515, the arcuate groove 1531 is located at convex The middle part of the side of platform 153, its to the inner recess of boss 153, therefore, the edge of the side of boss 153 is relative to the arcuate groove 1531 Outwardly convex forms a convex eaves (non-label), and upper lid on 11 arranges the structure matched with arcuate groove 1531 and may extend across convex eaves card Enter in wherein arcuate groove 1531, so as to play a part of the upper lid 11 of engaging and lower cover 15.Lower cover 15 is internally provided with and bottle 17 The interface arrangment for matching and sealing structure, it is used to seal clamping bottle 17

The material of lower cover 15 is not limited, and can select different type material according to the property of contained liquid.Such as PET (Polyethylene terephthalate polyethylene terephthalate) or PE (Polyethylene polyethylene) or PP (Polypropylene polypropylene) or PVC (polyvinyl chloride polrvinyl chloride) or PS (Polystyrene polyphenyl second Alkene) etc., it is preferably PP materials, and lower cover 15 is fabricated to translucent.The external shape of lower cover 15 is not also limited, and it can be with It is cylindrical, taper, it is irregular etc..

Fig. 7 and Fig. 8 is referred to, upper lid 11 is a downward opening rectangle cavity, and it is integrally formed making and is formed, upper lid 11 match with the geomery of lower cover 15, and the side wall of upper lid 11 is arc-shaped curved surface, and it is equally in the height side of liquid device 10 Upwardly towards the outside direction of lid 11 is raised in certain radian, the box body 151 and the projected side wall of boss 153 of the radian and lower cover 15 Arc be consistent.The side of upper lid 11 is provided with the lower concave part 1515 of a upper recess 117, upper recess 117 and the side of lower cover 15 This two depressed area is engaged and to form that surface is smooth, the concave curvature of shape such as finger pulp --- fingerprint groove (non-label), the fingerprint groove Position is corresponding with the position of arcuate groove 1531, and its form fit is in the thumb of people or the finger pulp shape of other fingers, this enforcement Operating instruction is carried out in example by taking thumb as an example.Fingerprint groove adopts ergonomic designs, fastens with lower cover 15 in upper lid 11 When under state, thumb can be placed at fingerprint groove and carry out the action for opening upper lid 11 by user.

The inside of upper lid 11 includes a bottle neck groove 111, and the bottle neck groove 111 is a hollow column, and it is located in lid 11 Central authorities of portion, internal structure and the bottle neck 155 structure phase of bottle neck groove 111 corresponding with the position of bottle neck 155 on lower cover 15, size Matching, when upper lid 11 and lower cover 15 are fastened, bottle neck 155 is just contained in bottle neck groove 111, between the two palette.On Integrally formed with two symmetrical arrangement identical card articles 113 on the inwall of lid 11, the card article 113 is arranged on the side wall of lid 11 At raised minimum curvature.Card article 113 is rectangle laminated structure, and the end of its lateral surface carries the barb of a wedge-shaped protrusion 1131 structures, upward the outside direction of lid 11 is arranged barb 1131, and the hypotenuse of its wedge-shaped protrusion is arranged towards the direction of lower cover 15, card article 113 are higher by the edge of lid 11, and its position is corresponding with the position of bayonet socket 1511 on lower cover 15, and the thickness of card article 113 is less than bayonet socket 1511 width, the size being smaller in size than equal to bayonet socket 1511 of barb 1131, the position of barb 1131 corresponds to bayonet socket 1511 Side outside upper lid 11.The recess of the inside upper recess 117 of upper lid 11 is provided with an arc strip 115, the arc strip 115 Physical dimension is corresponding to the arcuate groove 1531 on the boss 153 of lower cover 15, when lower cover 15 is fastened with upper lid 11, arc strip 115 Snap in arcuate groove 1531 and play snap action.

In sum, when upper lid 11 and lower cover 15 are fastened, it is simultaneously fixedly connected by connector 13, face corresponding thereto Then fastened with arc strip 115 by arcuate groove 1531, in addition two sides is by the bayonet socket on the card article 113 and lower cover 15 on upper lid 11 1511 phase clampings, the bottle neck 155 on lower cover 15 is contained in bottle neck groove 111, one is formed between lower cover 15 and upper lid 11 comprehensive Engaging pattern.

The material of upper lid 11 is not limited, and can select different type material according to the property of contained liquid.Such as PET (Polyethylene terephthalate polyethylene terephthalate) or PE (Polyethylene polyethylene) or PP (Polypropylene polypropylene) or PVC (polyvinyl chloride polrvinyl chloride) or PS (Polystyrene polyphenyl second Alkene) etc., it is preferably PP materials, and upper lid 11 is fabricated to translucent.The external shape of upper lid 11 is not also limited, and it can be with It is cylindrical, taper, it is irregular etc..The structure of bottle neck groove 111 can be designed according to the structure of bottle neck 155.Card article 113 and card The quantity of mouth 1511, arc strip 115 and arcuate groove 1531, shape is not also limited with size, and it can be other any matchings One or more interface arrangments for closing, the protrusion direction of the barb 1131 of card article 113 also do not limit, and it can be lid 11 upward Internal direction is arranged, and edge placement of the position with bayonet socket 1511 inside lower cover 15 is corresponding etc..The inside of bottle neck groove 111 can set Put packing ring or arrange to the raised structure in the liquid outlet direction of bottle neck 155 in the bottom of bottle neck groove 111, strengthen bottle neck 155 and bottle neck groove Sealing effectiveness between 111.Seal washer is may also set up on box body edge 1513.

Fig. 9 is referred to, manufacturer independently makes to form bottle 17, the upper lid 11 and lower cover 15 of the connection of connector 13, Then in injecting liquid into bottle 17, then the fixation of bottle 17 is connected in lower cover 15.Upper lid 11 is with the one side of lower cover 15 by connecting Fitting 13 is connected to a fixed, and upper lid 11 is directly detained, and the bottle neck 155 on lower cover 15 snaps in the bottle neck groove 111 inside lid 11 In, in the corresponding bayonet socket 1511 on lower cover 15 of card article 113 of the both sides of upper lid 11, meanwhile, because the end of card article 113 carries The structure of barb 1131, the position of barb 1131 is corresponding with the position of the edge in the outside of bayonet socket 1511, also, the section of barb 1131 For wedge shape, towards the setting of the direction of lower cover 15, after card article 113 is gently slipped in bayonet socket 1511, barb 1131 catches on box to the wedge shape plate The inwall of body 151, upper lid 11 is connected together with lower cover 15.Meanwhile, the arc strip of the inwall of upper recess 117 setting of upper lid 11 In 115 arcuate grooves 1531 slipped on lower cover 15, it is achieved thereby that the comprehensive clamping between lower cover 15 and upper lid 11.Whole liquid The assembling of body device 10 is completed.

Figure 10 is referred to, when in use, the thumb of a handss is pressed at fingerprint groove 199 and makes one gently upwards user Power, the thumb of another handss and forefinger pinch the both sides of liquid device 10 and make a power upward inside lid 11, due to upper lid 11 Upward the outside direction of lid 11 is raised in certain radian for side wall, and card article 113 and bayonet socket 1511 are separately positioned on lid 11 with At the minimum curvature of the side wall outwardly convex of lid 15, therefore, when external force acts on its side wall, upper lid 11 produces one towards its internal direction Small elastic deformation, now, the barb 1131 of card article 113 is produced in the presence of miniature deformation, up inside lid 11 in external force Direction offsets, and when barb 1131 is right against bayonet socket 1511, card article 113 can exit bayonet socket 1511, at the same time, arc strip 115 Arcuate groove 1531 can be departed from the presence of external force, the unlatching of lid 11 is completed, user is inverted liquid device 10, and gently uses Power extrusion bottle 17, liquid can be oozed in a drop-wise.

Above-mentioned liquid device 10 and embodiment can be a kind of ree-oil bottle, and it is used to contain the ree-oil of liquid, due to The unstability and ree-oil of the ree-oil physical property of liquid belongs to personal effects, its sealing to liquid device 10 with And the clamping stability between upper lid 11 and lower cover 15 proposes very high requirement, liquid device of the present invention 10 and its Embodiment then just meets the requirements of ree-oil bottle.

Compared with prior art, 10 point of three section design of fluid present invention device, the liquid device 10 of arbitrary shape can be adopted Realized with the structure described by the variant embodiment of the present invention and the present invention, due to structure between upper lid 11 and lower cover 15 Match somebody with somebody, by connector 13 between the rwo, card article 113 and bayonet socket 1511, the arc strip 115 being engaged and the arcuate groove of cooperation 1531 and bottle neck 155 and bottle neck groove 111 realize omnibearing positioning clamping, liquid device 10 will not easily because and other Article extruding causes the lower cover 15 to come off, it is to avoid lid 11 easily comes off and causes what liquid flowed out to ask on existing liquid device 10 Topic, and bottle neck 155 and the structure matching of bottle neck groove 111, bottle neck 155 can be just brought into close contact in bottle neck groove 111, and it ensure that When upper lid 11 and lower cover 15 are fastened, opposing seal between the two.Above all open the liquid device 10 under buckling state There must be orthogonal power while acting on the power of lid 11, i.e., three while acting on lid 11, the direction of one of power Perpendicular to the direction of two other power, that is, need to exert a force in orthogonal two planes simultaneously, be exactly specifically wherein Two power are the opposing force being parallel to each other, and corresponding at card article 113, force direction is upward inside lid 11 for its force application location, in addition One power is acted at the fingerprint groove between lid 11 and lower cover 15, and force direction is tangent with the side of upper lid 11, i.e., cover upward 11 tops, under normal circumstances, user needs two handss to act on lid 11 simultaneously, and the power for imposing three directions can be by Upper lid 11 is opened, and so in carrying process, liquid device 10 will not easily be extruded unlatching, and liquid device 10 is placed on child Where contacting, child easily can not open liquid device 10, and liquid substance is poured out or eaten by mistake, and liquid is solved well Potential safety hazard existing for body device 10.Fluid present invention device 10 uses square structure, and its is easy to carry, space utilization Rate is high, and its outside employs rounding or chamfering structure, comfortable feel while making the good looking appearance of liquid device 10 generous. There is its side to be provided with fingerprint groove again, the recess employs ergonomic designs, operate comfort and convenient.In sum, this Bright disclosed liquid device 10 not only stablize by clamping, good sealing effect, while also there is no potential safety hazard etc..

Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all originals in the present invention Any modification made within then, equivalent and improvement etc. all should be comprising within protection scope of the present invention.

Claims (7)

1. a kind of liquid device, for containing liquid substance, it is characterised in that：The liquid device include one on cover, a lower cover with One bottle, lower cover is located between upper lid and bottle, and under upper lid with lower cover buckling state, upper lid is needed in phase with the releasing of lower cover Mutually exert a force in two vertical planes, the force direction in the first plane is tangent with upper lid side, and the force in the second plane is Two opposing forces being parallel to each other and force direction is towards inside upper lid, between the upper lid and lower cover at least one pair of phase is provided with After mutually coordinating the card article and bayonet socket of clamping, card article to include that an overhead structure, upper lid are fastened with lower cover, the overhead structure enters card inlet It is interior that lower cover is connected together with upper lid, cover upward in second plane it is internal apply it is described two be parallel to each other it is contrary Power, the clamping between the overhead structure and bayonet socket is released.

2. liquid device as claimed in claim 1, it is characterised in that：Lower cover is provided with a depressed area with upper lid side, Two depressed area matches, and connects to form a concave curvature for being easy to unlatching operation.

3. liquid device as claimed in claim 1, it is characterised in that：Upper lid is fixedly connected with open-close type between lower cover.

4. liquid device as claimed in claim 2, it is characterised in that：Lower cover includes a taper bottle neck, and upper lid inside includes setting Bottle neck groove is equipped with, when upper lid is fastened with lower cover, opposing seal between bottle mouth and bottle groove.

5. liquid device as claimed in claim 4, it is characterised in that：Lower cover further includes a box body, a boss, lower cover by Box body transits to taper bottle neck from boss, and upper lid inside is tied with a clamping being engaged with concave curvature is provided between boss Structure.

6. a kind of liquid device, for containing liquid substance, it is characterised in that：The liquid device include one on cover, a lower cover with One bottle, lower cover is located between upper lid and bottle, open-close type connection between upper lid and lower cover, and between upper lid and lower cover three are provided with Individual interface arrangment, wherein two interface arrangments are oppositely arranged, another interface arrangment is located between two relative interface arrangments, upper Under lid and lower cover buckling state, lid needs to impose three power simultaneously in orthogonal two planes with lower cover in releasing, is somebody's turn to do The force application location of three power corresponds to three interface arrangments, and the power being applied in the second plane is to act on two relative interface arrangments Two power at place, two power force directions apply power force direction on the first plane on the contrary and towards inside upper lid It is tangent with upper lid side and perpendicular to the force direction of two power being applied in second plane, it is described be oppositely arranged two Interface arrangment is the card article and bayonet socket of a pair clampings that cooperate, after card article includes that an overhead structure, upper lid are fastened with lower cover, should Overhead structure enters in card inlet lower cover is connected together with upper lid, and at described two relative interface arrangments internal applying is covered upward Described two opposing forces, the clamping between the overhead structure and bayonet socket is released.

7. liquid device as claimed in claim 6, it is characterised in that：Upper lid adopts P E T or P E or P P or P V with bottle C or P S make.