The drink bottle bottle cap
Technical field
The utility model relates to through sealing plug and carries out leak free drink bottle bottle cap, more specifically, relates to the drink bottle bottle cap assembly of leak tightness with improvement and safety in utilization and leakproof, anti-pollution characteristic.
Background technology
Carry out leak free drink bottle bottle cap through sealing plug and be widely used in the various drink bottles, a kind of representative type example of these drink bottles comprises Sports water container.This type of drink bottle bottle cap often seals through the sealing plug of two kinds of forms.A kind of sealing plug comprises sealing plug cock body and flexible check valve (shown in Figure 1 like accompanying drawing), and another kind of sealing plug comprises sealing plug cock body and central seal post (shown in Figure 2 like accompanying drawing).
First kind of structure forms the one-way sealing to receiving fluids in the bottle through flexible check valve (it is processed by silica gel usually).Be positioned at the sealing plug cock body under the situation of open position, when internal pressure during greater than external pressure, the liquid that holds flows out through check valve.Because the material such as silica gel is very soft; For flexible check valve is fixed on the sealing plug cock body; Common way is to be pressed into a bracing ring through the opening above the sealing plug cock body; Form interference fit between this bracing ring and the sealing plug cock body, and flexible check valve is pressed in the sealing plug cock body.A defective of this class formation is, as time goes by, cooperating and can fluff gradually between bracing ring and the sealing plug cock body, thus might come off in use.For the such application of for example Sports water container, bracing ring that comes off and flexible check valve can fall into user's throat, thereby cause the danger that suffocates.In addition, because bracing ring, flexible check valve and sealing plug cock body three are separated structures, after long-time the use,, also there is the possibility of leak of liquid along with to each other cooperation fluffs.
Second kind of structure realizes the sealing to internal flow through the cooperation between sealing plug cock body and the central seal post.When placing the open position to the sealing plug cock body, only need topple over body, the in-to-in fluid will flow out through the fluid passage between sealing plug cock body and the central seal post.Clearly, this can make the in-to-in escape of liquid under the situation that causes passage to open owing to maloperation.And also cause exterior foreign matter to get in the drink bottle easily through the passage of opening.
Thereby, exist lasting demand for the safety with improvement, leak tightness and the drink bottle bottle cap that under opening, possesses the leakproof anti-pollution function.
The utility model content
According to the one side of the utility model, a kind of drink bottle bottle cap assembly is provided, it comprises cage and sealing plug, and cage and sealing plug form and closely cooperate, and sealing plug comprises cock body, flexible check valve and bracing ring.Wherein, cock body, flexible check valve and bracing ring form.Sealing plug has open position and make position with respect to cage.In the open position, form the fluid passage that fluid can pass through between sealing plug and the cage; In make position, this passage is closed.Sealing plug comprises: cock body; Flexible check valve; Flexible check valve is remained on the bracing ring on the cock body; Wherein, said cock body, flexible check valve and bracing ring form.The cock body that forms, flexible check valve and seal ring provide good sealing property and safety in utilization.
According to the utility model on the other hand, between cage and sealing plug, have several O V-shaped rings, the upside of the passage of some of them seal ring between sealing plug and cage, and the downside of the passage of other seal ring between sealing plug and cage.For reaching the better seal characteristic, preferably adopt the even number seal ring, and wherein half seal ring is positioned at the upside of fluid passage, and second half seal ring is positioned at the downside of fluid passage.Seal ring has further improved the leak tightness of bottle cap assembly.
According to the utility model on the other hand; On cage, be formed with dredging flow groove; Be used for sealing plug from the open position when make position moves, make a spot of liquid accumulate in cage flow back to drink bottle and can from flexible check valve, outwards not extrude from this dredging flow groove.This has prevented the leakage of not expecting of institute's receiving fluids in the drink bottle.
According to the utility model on the other hand, cage and sealing plug form through buckle on the sealing plug and the draw-in groove on the cage and cooperate.Form corresponding chamfering on buckle and the draw-in groove; So that in the time of need cleaning the bottle cap assembly; Can be with respect to cage rotary seal plug cock body; The cock body of sealing plug or cage can be out of shape under the effect of power and make buckle-draw-in groove cooperate separation, thereby through the elastic deformation of buckle sealing plug are disassembled from cage, and then can realize the independent cleaning to cage and sealing plug.
The further feature of the utility model, aspect and advantage will describe in further detail in the following specific embodiment.
Description of drawings
When with reference to the following specific embodiment of advantages, understandings that will improve of these of the utility model and further feature, aspect and advantage wherein runs through accompanying drawing, and similar label is represented similar parts, wherein:
Fig. 1 is the scheme drawing of a kind of drink bottle bottle cap of prior art;
Fig. 2 is the scheme drawing of the another kind of drink bottle bottle cap of prior art;
Fig. 3 is the scheme drawing according to the drink bottle bottle cap of an embodiment of the utility model;
Fig. 4 is the cutaway view of the drink bottle bottle cap shown in Fig. 3, and this moment, sealing plug was in the open position;
Fig. 5 is the cutaway view of the drink bottle bottle cap shown in Fig. 3, and this moment, sealing plug was in the close position;
Fig. 6 has shown that the buckle-draw-in groove between cage and the sealing plug cooperates;
Fig. 7 has shown the details of the dredging flow groove on the cage.
The specific embodiment
The various aspects and the details of the application's bottle cap assembly have been described through specific embodiment below in conjunction with accompanying drawing.It should be noted that the specific detail that provides in the specific embodiment is also nonrestrictive, and be merely explanation the application's characteristics.In a kind of specific embodiment, not necessarily comprise combining the described whole characteristics of accompanying drawing, and combine a described characteristic of accompanying drawing or aspect can with combine described characteristic of another accompanying drawing or aspect combine and produce new embodiment.
Fig. 3 is the scheme drawing according to the drink bottle bottle cap assembly 1 of an embodiment of the utility model.Shown in figure, this assembly 1 is divided into cage 2 and sealing plug 3 two parts.Form between cage 2 and the sealing plug 3 and closely cooperate, thereby the liquid that holds in the drink bottle is formed sealing.Sealing plug 3 can move up and down with respect to cage 2, thus be formed on the top the open position and below make position (it is respectively shown in Fig. 4 and Fig. 5).On the open position, the liquid that holds in the drink bottle can be drunk for drinking person flowing out the bottle cap assembly through fluid passage between sealing plug and the cage and flexible check valve under the effect of internal pressure.On make position, the fluid passage is cut off, thereby forms the sealing to drink bottle in-to-in liquid.
Fig. 4 has further described the opening of bottle cap assembly 1 with the form of section-drawing.Under this state, sealing plug 3 is pulled to higher open position, makes the cock body 4 exterior depressions of sealing plug 3 be communicated with cage 2 interior annular channel fluid ground, thereby forms the fluid passage.Under this state, if the drink bottle pressure inside greater than exterior pressure, the liquid in the drink bottle will be through the fluid passage and through this flexibility check valve 5 outflow bottle cap assemblies.This flexibility check valve 5 can be processed by flexible materials such as silica gel.For flexible check valve 5 is remained on the cock body 4, bracing ring 6 is provided.This bracing ring 6 can adopt the thermoplastic elastomer TPE that is preferably shore hardness 50A~70D to process, and includes but not limited to a kind of in the following material: TPO TPO; Thermoplastic polyurethane TPU; Sulfuration thermoplastic elastomer TPV; Copolyester elastomer COPE; Thermoplastic rubber TPR.According to a preferred embodiment, this bracing ring 6 is processed by the thermoplastic rubber TPR of shore hardness 95A.Cock body 4, flexible check valve 5 and bracing ring 6 form through suitable Shooting Technique.According to a preferred embodiment, can cock body 4, flexible check valve 5 and bracing ring 6 be formed through Shooting Technique.The risk that the sealing plug that forms through this type of technology does not have parts to get loose.
According to a preferred embodiment, seal ring 7 also is provided in the both sides, fluid passage.The number of seal ring 7 can be two or more, and is arranged in both sides up and down, fluid passage.In order to obtain preferable sealing characteristics, the number of seal ring 7 can be even number, for example is two in this example, but from the concrete needs of using, also can adopt four, six, eight even more a plurality of seal ring 7.Wherein the seal ring 7 of half number is positioned at the top of fluid passage, and the seal ring 7 of second half number is positioned at the below of fluid passage.
Fig. 5 has further described the closure state of bottle cap assembly 1 with the form of section-drawing.Under this state, sealing plug 3 is pushed into lower make position, makes the cock body 4 exterior depressions of sealing plug 3 and the annular channel in the cage 2 stagger, thereby has cut off the fluid passage.Even if the drink bottle pressure inside is greater than external pressure at this moment, the liquid in the drink bottle can not outwards flow out through check valve 5.
Fig. 6 shows cage and cooperates with buckle-draw-in groove between the sealing plug.The cock body 4 of sealing plug 3 is processed by the thermoplastic elastomer TPE of shore hardness 30A~70D, and it engages with draw-in groove 9 on the cage of being processed by harder material 2 through buckle 8, thereby avoids during use cock body 4 with respect to the rotation of not expecting of cage 2.For the ease of independent cleaning, on buckle 8 and draw-in groove 9, formed cooresponding chamfering to cage 2 and sealing plug 3.Because the material of cock body 4 is an elastomeric material; When needs carry out independent cleaning to cage 2 and sealing plug 3; Make cock body 4 with respect to the direction rotation of cage 2 along chamfering, elastic deformation will take place in buckle 8 under the extruding of draw-in groove 9, and then is disengaged with draw-in groove 9; Thereby can sealing plug 3 be removed from cage 2, so that carry out independent cleaning.After cleaning completion, cock body 4 is pushed entering cage 2 again, make buckle 8 form to engage again and get final product with draw-in groove 9.Certainly, those skilled in the art can understand easily, break away from the purpose that cooperates in order to reach through distortion, also can cage processed with softer material and the sealing plug cock body is processed with harder material.
Fig. 7 shows the dredging flow groove 10 on the cage 2.When the cock body 4 of sealing plug 3 is in the open position, can accumulate a spot of liquid in the cage 2.With cock body 4 from the open position during make position promotes, dredging flow groove 10 can guarantee that the liquid that accumulates in the cage 2 flows back to drink bottle inside through dredging flow groove 10, and can not flow out drink bottles through flexible check valve 5.
Although this paper only explains and has described some characteristic of the present invention that those skilled in the art will expect many remodeling and change.Therefore it should be understood that the covering of appended claims intention falls into all this type of remodeling and the changes within the true spirit of the present invention.