CN209427326U

CN209427326U - A kind of plug-bouncing freeze-dried powder rubber plug

Info

Publication number: CN209427326U
Application number: CN201920127236.XU
Authority: CN
Inventors: 蓝锡伟
Original assignee: Hangzhou Sange Biotechnology Co Ltd
Current assignee: Hangzhou Sange Biotechnology Co Ltd
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2019-09-24
Anticipated expiration: 2029-01-25

Abstract

The utility model discloses a kind of plug-bouncing freeze-dried powder rubber plugs, including a cock body, the upper end injection molding of the cock body is formed with a bizet, a gas vent is machined at the bottom shaft core position of the cock body, exhaust notch cruciferous is processed at the top of the bizet, the gas vent is communicated with the exhaust notch, it is closed under the exhaust notch and the gas vent normality, after pressure in the bottle increase, inner and outer air pressure etc., notch is vented by spreading final vacuum, an annular groove is machined at the top position of the bizet, the annular groove extends downward into the cock body, first annular slot is machined at the inner ring of the annular groove, gluing is fixed with the inner ring of a plastic material at the first annular slot, the external process of the inner ring has screw thread, the annular groove has a tapered surface, the diameter of the tapered surface is downwards gradually It reduces, an expanded support pipe is threaded with by the inner ring；This product can also avoid influencing to be vented it is possible to prevente effectively from plug jumping.

Description

A kind of plug-bouncing freeze-dried powder rubber plug

Technical field

The utility model relates to a kind of plug-bouncing freeze-dried powder rubber plugs.

Background technique

The production of existing freeze drying powder injection is usually that will carry out sterile vacuum after the medical fluid freeze-drying containing effective ingredient Packaging, production process is long, and medicine bottle should be jumped a queue in freeze-drying process, keep sterile, and bottle stopper sealing cannot be made too tight.

Existing bottle stopper in design, rubber plug and bottleneck are " interference " cooperation, in this way due to rubber stopper " neck " The elasticity of gradient and rubber plug, rubber plug easily jump out bottleneck, " interference " amount it is bigger, " neck " gradient is bigger, " neck " elasticity it is more big more It is also easy to produce plug jumping, such as " interference " amount leads to rubber plug " neck " generation " inclination ", and such bottleneck can generate with one rubber plug Component, rubber plug elasticity is bigger, and component with it is bigger, rubber plug easier " jumping out " (i.e. plug jumping).

In order to avoid the probability of plug jumping, usually allow the cooperation between bottle stopper and bottleneck more close so that bottle stopper by Biggish oppressive force causes the internal gas vent for exhaust to be blocked, cannot achieve exhaust.

Based on the above issues, we devise a kind of it is possible to prevente effectively from plug jumping, while can also avoid influencing to be vented Plug-bouncing freeze-dried powder rubber plug.

Utility model content

The technical problem to be solved by the utility model is to provide one kind it is possible to prevente effectively from plug jumping, while can also avoid Influence the plug-bouncing freeze-dried powder rubber plug of exhaust.

The utility model is achieved through the following technical solutions:

The upper end injection molding of a kind of plug-bouncing freeze-dried powder rubber plug, including a cock body, the cock body is formed with a bizet, the bizet Diameter be greater than the cock body diameter, a gas vent is machined at the bottom shaft core position of the cock body, in the bizet Top process exhaust notch cruciferous, the gas vent is communicated with the exhaust notch, the exhaust notch with it is described It is closed under gas vent normality, after pressure in the bottle increase, inner and outer air pressure etc. is vented notch by spreading final vacuum, in the hat An annular groove is machined at the top position in portion, the annular groove extends downward into the cock body, the inner ring of the annular groove Place is machined with first annular slot, and gluing is fixed with the inner ring of a plastic material at the first annular slot, the inner ring it is outer Portion is threaded, and the annular groove has a tapered surface, and the diameter of the tapered surface is gradually reduced downwards, by described interior Circle is threaded with an expanded support pipe, and the expanded support pipe acts on the tapered surface along supination under the inner ring screw thread, and The tapered surface is squeezed, so that tapered surface expands outwardly, injection molding is formed with sealing ring, the sealing at the outer wall of the cock body The corresponding tapered surface of circle, when tapered surface expands outwardly, the diameter of the sealing ring is gradually increased.

Preferably, the second annular groove of an insertion bottleneck, the second annular are machined in the bottom position of the bizet The depth of slot is 4mm~8mm, and the second annular groove avoids generating at bottleneck and annular groove location primarily to guarantee leakproofness The gap that bacterium can enter.

Preferably, the expanded support pipe of a plastic material, the expanded support pipe and the gas vent are assigned in the gas vent Between be interference fitted, the purpose of design of expanded support pipe is supported to gas vent, it is ensured that the normal work of gas vent.

Preferably, the section of the sealing ring is arc, and radian is 1 π.

Preferably, the wall thickness of the expanded support pipe is 1mm~2mm.

The mounting means of this product is as follows:

Cock body is inserted into bottleneck first, transition fit between cock body and bottleneck, convenient for cock body is inserted into, cock body After insertion, then rotating dress matches expanded support pipe, and after expanded support pipe moves downward, stepless action is on tapered surface, so that the outer diameter of cock body is equal Even is increased by expanded support, increases and is formed between bottleneck and seals, and sealing ring is inserted into bottleneck, close since cock body is by expanded support Seal limits the lower position in bottleneck, so that cock body can not be jumped out outward, while the power expanded is only to act on taper It on face, and does not stress on the inside of cock body, avoids squeezing gas vent, it is ensured that can normal exhaust.

The beneficial effects of the utility model are: this product can form reliable cooperation between bottleneck, pass through sealing ring Inner side limiting-position is formed, internal support is formed by expanded support pipe, so that cock body avoids jumping out, while not influencing to be vented, this product Structure is relatively simple, and cost is more cheap, is suitble to promote the use of.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the cross-sectional view of the utility model；

Fig. 2 is the top view of bizet；

Fig. 3 is cross-sectional view at A-A.

Specific embodiment

All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive Feature and/or step other than, can combine in any way.

Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only It is an example in a series of equivalent or similar characteristics.

In the description of the present invention, it should be understood that term " one end ", " other end ", " outside ", "upper", " interior The orientation or positional relationship of the instructions such as side ", "horizontal", " coaxial ", " center ", " end ", " length ", " outer end " is based on attached drawing Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this reality With novel limitation.

In addition, in the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless Separately there is clearly specific restriction.

In the present invention unless specifically defined or limited otherwise, term " setting ", " connection ", " passes through at " socket " Wear ", the terms such as " grafting " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

A kind of plug-bouncing freeze-dried powder rubber plug as shown in Figure 1, Figure 2 and Figure 3, including a cock body 1, the upper end of the cock body 1 Injection molding is formed with a bizet 2, and the diameter of the bizet 2 is greater than the diameter of the cock body 1, in the bottom shaft core position of the cock body 1 Place is machined with a gas vent 101, processes exhaust notch 201 cruciferous, the gas vent 101 at the top of the bizet 2 It communicates with the exhaust notch 201, is closed under the exhaust notch 201 and 101 normality of gas vent, increased in the pressure in the bottle Afterwards, inner and outer air pressures etc. are vented notch 201 by spreading final vacuum, are machined with an annular groove at the top position of the bizet 2 211, the annular groove 211 extends downward into the cock body 1, is machined with first annular slot at the inner ring of the annular groove 211 212, gluing is fixed with the inner ring 213 of a plastic material, the external process of the inner ring 213 at the first annular slot 212 Have screw thread (not shown), the annular groove 211 has a tapered surface 221, and the diameter of the tapered surface 221 gradually contracts downwards It is small, an expanded support pipe 3 is threaded with by the inner ring 213, the expanded support pipe 3 is made along supination under 213 screw thread of inner ring With on the tapered surface 221, and the tapered surface 221 is squeezed, so that tapered surface 221 expands outwardly, in the cock body 1 Injection molding is formed with sealing ring 121, the corresponding tapered surface 221 of the sealing ring 121, when tapered surface 221 expands outwardly at outer wall When, the diameter of the sealing ring 121 is gradually increased.

A preferred embodiment in the utility model is machined with an insertion bottleneck in the bottom position of the bizet 2 Second annular groove 232, the depth of the second annular groove are 4mm~8mm, the second annular groove primarily to guarantee leakproofness, It avoids generating the gap that bacterium can enter at bottleneck and annular groove location.

A preferred embodiment in the utility model assigns the expanded support of a plastic material in the gas vent 101 Pipe 122 is interference fitted between the expanded support pipe 122 and the gas vent 101, and the purpose of design of expanded support pipe is carried out to gas vent Support, it is ensured that the normal work of gas vent.

A preferred embodiment in the utility model, the section of the sealing ring 121 are arc, and radian is 1 π.

A preferred embodiment in the utility model, the wall thickness of the expanded support pipe 122 are 1.6mm.

The mounting means of this product is as follows:

Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to In this, any change or replacement expected without creative work be should be covered within the scope of the utility model. Therefore, the protection scope of the utility model should be determined by the scope of protection defined in the claims.

Claims

1. a kind of plug-bouncing freeze-dried powder rubber plug, it is characterised in that: including a cock body, the upper end injection molding of the cock body is formed with a hat Portion, the diameter of the bizet are greater than the diameter of the cock body, are machined with a gas vent at the bottom shaft core position of the cock body, The top of the bizet processes exhaust notch cruciferous, and the gas vent is communicated with the exhaust notch, and the exhaust is cut Mouthful with closed under the gas vent normality, after pressure in the bottle increase, inner and outer air pressure etc. is vented notch by spreading final vacuum, An annular groove is machined at the top position of the bizet, the annular groove extends downward into the cock body, the annular First annular slot is machined at the inner ring of slot, gluing is fixed with the inner ring of a plastic material at the first annular slot, described The external process of inner ring has screw thread, and the annular groove has a tapered surface, and the diameter of the tapered surface is gradually reduced downwards, leads to It crosses the inner ring and is threaded with an expanded support pipe, the expanded support pipe acts on the tapered surface along supination under the inner ring screw thread On, and the tapered surface is squeezed, so that tapered surface expands outwardly, injection molding is formed with sealing ring at the outer wall of the cock body, The sealing ring corresponds to the tapered surface, and when tapered surface expands outwardly, the diameter of the sealing ring is gradually increased.

2. plug-bouncing freeze-dried powder rubber plug according to claim 1, it is characterised in that: add in the bottom position of the bizet Work has the second annular groove of an insertion bottleneck, and the depth of the second annular groove is 4mm~8mm.

3. plug-bouncing freeze-dried powder rubber plug according to claim 1, it is characterised in that: assigned a modeling in the gas vent The expanded support pipe for expecting material, is interference fitted between the expanded support pipe and the gas vent.

4. plug-bouncing freeze-dried powder rubber plug according to claim 1, it is characterised in that: the section of the sealing ring is arc, Radian is 1 π.

5. plug-bouncing freeze-dried powder rubber plug according to claim 3, it is characterised in that: the wall thickness of the expanded support pipe be 1mm~ 2mm。