WO2018195846A1 - 一种输液软袋的密封结构 - Google Patents

一种输液软袋的密封结构 Download PDF

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Publication number
WO2018195846A1
WO2018195846A1 PCT/CN2017/082160 CN2017082160W WO2018195846A1 WO 2018195846 A1 WO2018195846 A1 WO 2018195846A1 CN 2017082160 W CN2017082160 W CN 2017082160W WO 2018195846 A1 WO2018195846 A1 WO 2018195846A1
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Prior art keywords
connecting tube
sealing cover
blocking surface
axis
protrusion
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PCT/CN2017/082160
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English (en)
French (fr)
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刘大
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刘大
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Priority to PCT/CN2017/082160 priority Critical patent/WO2018195846A1/zh
Publication of WO2018195846A1 publication Critical patent/WO2018195846A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor

Definitions

  • the invention belongs to the technical field of machinery and, more particularly, relates to a sealing structure of an infusion soft bag.
  • the technical problem to be solved by the present invention is to provide a sealing structure for an infusion soft bag which is easy to process.
  • a sealing structure for an infusion soft bag comprising: a connecting tube and a sealing cover matched with the connecting tube; a protrusion is arranged along an inner wall of the connecting tube, and the protruding portion is provided along the outer circumference of the sealing cover
  • the mating ring groove can be embedded in the ring groove to limit the movement of the sealing cover.
  • the protrusion has a first blocking surface that prevents the sealing cover from moving to the outside of the connecting tube
  • the annular groove has a second blocking surface that cooperates with the first blocking surface
  • the first blocking surface is a slope
  • the second blocking surface is a sloped surface.
  • an angle between the first blocking surface and the axis of the connecting tube is between thirty-five degrees and fifty degrees
  • an angle between the second blocking surface and the axis of the connecting tube is fifty-two to sixty-two. degree.
  • an angle between the first blocking surface and the axis of the connecting tube is fifty degrees, and an angle between the second blocking surface and the axis of the connecting tube is fifty-seven degrees.
  • solder joint is provided at a portion where the connecting pipe and the sealing cover are in contact with each other.
  • the solder joint is provided at a portion where the connecting pipe and the sealing cover are in contact with each other, and the connection strength between the sealing cover and the connecting pipe can be further strengthened to make the connection more secure.
  • solder joint is disposed on a port surface of the connecting pipe.
  • the soldering at the port of the connecting tube is convenient for operation.
  • the sealing cover is provided with a guiding pin hole
  • the guiding pin hole is provided with a buckle for closing the guiding pin hole.
  • the direction of the buckle is parallel to the axial direction of the connecting tube.
  • the direction of the buckle is parallel to the axial direction of the connecting tube, and it is better to be pulled apart during use.
  • the direction of the buckle is perpendicular to the axial direction of the connecting tube.
  • the direction of the buckle is perpendicular to the axial direction of the connecting tube, so as to avoid accidentally touching the buckle and damaging the buckle.
  • the protrusion has a first blocking surface for preventing the sealing cover from moving to the outside of the connecting tube
  • the ring groove has a second blocking surface having a matching with the first blocking surface, the first blocking surface
  • the second blocking surface is a sloped surface
  • the acute angle between the first blocking surface and the connecting tube axis is fifty degrees
  • the angle between the second blocking surface and the connecting tube axis is fifty-seven degrees
  • the sealing The cover is provided with a guide pin hole
  • the guide pin hole is provided with a pull buckle for closing the guide pin hole, and the direction of the pull buckle is parallel or perpendicular to the axial direction of the connecting pipe.
  • the surface that is in contact with each other is set as a bevel, which facilitates the cooperation of the sealing cover and the connecting tube, and is convenient for installation or removal.
  • the angle described above is set, the force of the cooperation between the sealing cover and the connecting tube can be maximized, and the test is obtained.
  • the data is more than 270 Newtons.
  • the invention is provided with a protrusion in the connecting pipe, and is arranged on the sealing cover in the ring groove of the convex fitting.
  • the sealing cover When installing, the sealing cover is inserted into the connecting pipe, so that the protrusion in the connecting pipe is caught in the ring groove of the sealing cover. , The sealing cover can be closed, the welding step is omitted, the operation is convenient, and only the corresponding parts of the mold are required to be matched; and in the production, the connection is welded compared to the plastic.
  • the connection between the tube and the sealing cover is stronger, more stable, and the yield is higher.
  • the mechanical connection is used to connect, no welding is needed, energy is saved, not only environmental protection, but also healthier for the operator.
  • FIG. 1 is a schematic structural view of a flap according to an embodiment of the present invention.
  • FIG. 2 is a partial structural schematic view of a connecting pipe according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view showing a second blocking surface of the sealing cover of the second embodiment of the present invention.
  • FIG. 4 is a schematic structural view showing a second blocking surface of the sealing cover of the second embodiment of the present invention.
  • Fig. 5 is a structural schematic view showing the first blocking surface of the connecting pipe of the third embodiment of the present invention at thirty-five degrees.
  • a sealing structure for an infusion soft bag comprising: a connecting tube and a sealing cover matched with the connecting tube; a protrusion is arranged along an inner wall of the connecting tube, and the protruding portion is provided along the outer circumference of the sealing cover
  • the mating ring groove can be embedded in the ring groove to limit the movement of the sealing cover.
  • the invention is provided with a protrusion in the connecting pipe, and is arranged on the sealing cover in the ring groove of the convex fitting.
  • the sealing cover When installing, the sealing cover is inserted into the connecting pipe, so that the protrusion in the connecting pipe is caught in the ring groove of the sealing cover. , the sealing cover can be closed, the welding step is omitted, the operation and processing are convenient, and only the corresponding parts of the mold are required to be matched; and in production, the connection method is compared with plastic
  • the welding of the material, the connection between the connecting pipe and the sealing cover is stronger, more stable, and the yield is higher.
  • the mechanical connection is used to connect, no welding is needed, energy is saved, not only environmental protection, but also more for the operator. health.
  • a sealing structure for an infusion soft bag includes a connecting tube 2 and a sealing cover 3, and the connecting tube 2 includes a connecting tube, and the connecting tube 2 is cylindrical and has an axis 1.
  • the closure cap 3 can be inserted into the connecting tube 2 along the axis 1 to close the connecting nozzle.
  • a protrusion 20 is disposed in the connecting nozzle.
  • the protrusion 20 is disposed along the circumference of the inner wall of the connecting tube 2.
  • the sealing cover 3 is provided with a ring groove 30 which cooperates with the protrusion 20, and the annular groove 30 is disposed on the outer circumference of the sealing cover 3.
  • the protrusion 20 cooperates with the ring groove 30, and the protrusion 20 has a first blocking surface 21, the first blocking surface 21 is inclined, and the inclined side faces the axis 1 of the connecting tube 2.
  • the ring groove 30 has a second blocking surface 32.
  • connection methods are not only environmentally friendly, but also have low requirements on the production environment, which is conducive to improving the working environment of production workers and protecting workers' health.
  • the central axis of the sealing cover 3 coincides with the axis 1 of the connecting pipe 2, thereby ensuring the precision of the fitting, and also facilitating mass production.
  • the problem of clinical closure of the closure 3 has become an important factor affecting the quality of the product.
  • the solution is contaminated, and the infusion will not continue to be used;
  • the liquid spills onto the bed or the patient, pollutes the environment and injures personal safety. Therefore, the force of the cooperation between the sealing cover 3 and the connecting tube 2 should be appropriately increased to enhance the safety of use of the infusion soft bag.
  • the tensile strength of the connecting pipe and the sealing cap in the existing infusion soft bag is less than one hundred and fifty Newtons, so that the tensile force is too small, which is likely to cause an accident between the connecting pipe 2 and the sealing cover 3. Get rid of.
  • the present invention is further improved in that the acute angle between the first blocking surface 21 and the axis 1 of the connecting tube 2 is set at thirty-five to fifty degrees, and the angle between the second blocking surface 32 and the axis 1 of the connecting tube 2 is acute. At fifty-two to sixty-two degrees, through mechanical analysis and experiments, such an angle setting can make the tensile force between the connecting pipe 2 and the sealing cover 3 more than one hundred and fifty Newtons, thereby more effectively preventing the When the infusion soft bag is in the unused state, the sealing cover 3 is detached from the connecting tube 2 to avoid the occurrence of an accident, and the safety of the infusion soft bag is greatly improved.
  • the acute angle between the first blocking surface 21 and the axis 1 of the connecting tube 2 is set to fifty degrees, and the acute angle between the second blocking surface 32 and the axis 1 of the connecting tube 2 is fifty-seven degrees.
  • the tension between the connecting pipe 2 and the sealing cover 3 is relatively large, reaching more than 270 Newtons, which effectively avoids the connection between the connecting pipe 2 and the sealing cover 3.
  • the accidental disengagement ensures the stability of the connection between the connecting tube 2 and the sealing cover 3, and further improves the safety of the infusion soft bag.
  • the protrusion 20 also has an introduction surface 23 for facilitating the insertion of the sealing cover 3 into the connecting tube 2.
  • the intermediate surface 22 is connected between the introduction surface 23 and the first blocking surface 21, and the first blocking surface is provided.
  • the angle between the 21 and the intermediate surface 22 is an obtuse angle, and the angle between the introduction surface 23 and the intermediate surface 22 is also an obtuse angle, and the angles of the two obtuse angles may be the same or different.
  • the first blocking surface 21, the intermediate surface 22 and the introduction surface 23 constitute a projection 20 which is a cylindrical surface formed around the axis 1 and whose axis 1 is parallel to the intermediate surface 22.
  • a transition surface 27 is provided at the other end of the introduction surface 23 of the projection 20, the transition surface 27 being a cylindrical surface formed around the axis 1, and the axis 1 being parallel to the transition surface 27.
  • the open end of the connecting tube 2 is provided with a port surface 24, and the port surface 24 is perpendicular to the axis 1, so that the sealing cover 3 and the connecting tube 2 can be mounted and welded on the port surface 24, further stabilizing the sealing cover 3 and the connecting tube 2 Connection.
  • the connecting pipe 2 is provided with a stepped surface 26, the stepped surface 26 is disposed perpendicular to the axis 1, and one end of the stepped surface 26 is connected with the transition surface 27, The other end is provided with a stepped circular surface 25 which is also connected to the port surface 24, the stepped circular surface 25 being a cylindrical surface formed around the axis 1, and the stepped circular surface 25 being parallel to the axis 1.
  • the sealing cover 3 is provided with a cylindrical accommodating space 42.
  • the accommodating space 42 is for mounting a rubber plug, so that the sealing cap 3 is connected with the connecting pipe 2, and the rubber plug can close the nozzle of the connecting pipe 2.
  • a rubber plug is installed.
  • One end of the accommodating space 42 is connected to the outside, and the other end is provided with a pull tab 41 to close the accommodating space 42.
  • a pinhole 31 is provided between the buckle 41 and the accommodating space 42. The pin hole 31 is used. To facilitate the infusion soft bag, the needle is easily inserted into the connecting tube 2 through the needle hole 31 for infusion or infusion of liquid.
  • the pull button 41 can protect the guide pin hole 31, and the pull button 41 can be pulled apart, so that the needle head can enter the guide pin hole 31, and the pull button 41 can be disposed in parallel with the axis 1, so that the pulling operation is convenient; the pull button 41 can also be connected with the axis. 1 is set vertically so that the pull tab 41 is not easily pulled open accidentally, thereby improving safety.
  • the accommodating space 42 has a hole wall 43.
  • the hole wall 43 is adjacent to the outer side, and the outer side is provided with a second blocking surface 32 that cooperates with the first blocking surface 21, and the second blocking surface 32 is connected with a guide for facilitating the mounting of the sealing cover 3 into the connecting tube 2.
  • Face 39 the guide surface 39 cooperates with the introduction surface 23 to facilitate the entry of the closure cap 3 into the connecting tube 2 at a suitable angle of inclination.
  • the other end of the second blocking surface 32 is provided with an intermediate mating surface 33 connected to the second blocking surface 32, the intermediate mating surface 33 is engaged with the intermediate surface 22, and the other end of the intermediate mating surface 33 is connected with an introduction mating surface 34, and the sealing cover 3 is mounted.
  • the introduction mating surface 34 cooperates with the introduction surface 23, and the second blocking surface 32, the intermediate mating surface 33 and the introduction mating surface 34 form a ring groove 30 which is open and flared outward.
  • the other end of the introduction mating surface 34 is connected with a transition mating surface 38 and a transition surface 27.
  • the other end of the transition mating surface 38 is connected with a step mating surface 37 that cooperates with the step surface 26.
  • the other end of the step mating surface 37 is connected with a step fit.
  • the circular surface 36 cooperates with the stepped circular surface 25, and the other end of the stepped circular surface 25 is connected to the port fitting surface 35 to engage the port surface 24.
  • the structure is formed such that the protrusion 20 and the annular groove 30 are engaged with each other, and the first blocking surface 21 and the second blocking surface 32 prevent the sealing cover 3 from being detached from the connecting tube 2, and the multi-layered structure not only strengthens the connection.
  • the stability can also prevent liquid from oozing out of the connecting tube 2, reducing the probability of liquid seeping and ensuring safety.
  • a solder joint may be disposed between the port surface 24 and the port mating surface 35, and the sealing cover 3 and the connecting tube 2 may be welded. This further strengthens the connection between the sealing cover 3 and the connecting tube 2, thereby improving the safety of the infusion soft bag.
  • connecting tube 2 and the sealing cover 3 can also be reversed, and a ring groove can be provided in the connecting tube, and correspondingly, a protrusion is provided in the sealing cover.
  • the second embodiment is different from the first embodiment in that the angle between the second blocking surface 32 of the sealing cover 3 and the axis 1 of the connecting tube 2 is fifty-two to sixty. Second degree.
  • the sealing cover 3 can be at an acute angle with the first blocking surface 21 and the axis 1.
  • the connecting pipe 2 with an angle of 50 degrees is fitted, and the tensile force of the sealing cover 3 and the connecting pipe 2 is more than one hundred and fifty Newtons; the sealing cover 3 can also be at an acute angle with the first blocking surface 21 and the axis 1.
  • the connecting pipe 2 having an angle of thirty-five degrees is fitted, and the tensile force of the sealing cover 3 and the connecting pipe 2 is more than one hundred and fifty Newtons.
  • the sealing cover 3 can be combined with the first blocking surface 21 and the axis 1
  • the connecting pipe 2 with an acute angle of 50 degrees is fitted, and the sealing force of the sealing cover 3 and the connecting pipe 2 is more than one hundred and fifty Newtons; the sealing cover 3 can also be combined with the first blocking surface 21 and the axis 1
  • the connecting angle of the acute angle is 35 degrees, and the sealing force of the sealing cover 3 and the connecting pipe 2 is more than one hundred and fifty Newtons.
  • Such an arrangement can ensure the strength of the installation and connection of the sealing cover 3 and the connecting pipe 2 even in the case of small-volume production, and at the same time, the production efficiency can be improved, the output can be increased, and greater economic benefits can be created.
  • the third embodiment is different from the first embodiment in that the acute angle between the first blocking surface 21 of the connecting pipe 2 and the axis 1 is set to be thirty-five to fifty degrees.
  • the angle between the first blocking surface 21 of the connecting tube 2 and the axis 1 is thirty-five degrees
  • the angle between the connecting tube 2 and the second blocking surface 32 and the acute angle of the axis 1 is The fifty-two degree sealing cover 3 is fitted together, and the tensile force of the connecting tube 2 and the sealing cover 3 is more than one hundred and fifty Newtons; the connecting tube 2 can also be at an acute angle with the second blocking surface 32 and the axis 1
  • the sealing cover 3 is fitted for a sixty-two degree, and the tensile force of the connecting tube 2 and the sealing cover 3 is more than one hundred and fifty Newtons.
  • the angle between the first blocking surface 21 of the connecting tube 2 and the acute angle of the axis 1 is fifty degrees
  • the angle between the connecting tube 2 and the second blocking surface 32 and the acute angle of the axis 1 is The fifty-two degree sealing cover 3 is fitted together, and the tensile force of the connecting tube 2 and the sealing cover 3 is more than one hundred and fifty Newtons; the connecting tube 2 can also be at an acute angle with the second blocking surface 32 and the axis 1
  • the sealing cover 3 is fitted for a sixty-two degree, and the tensile force of the connecting tube 2 and the sealing cover 3 is more than one hundred and fifty Newtons.
  • Such an arrangement can ensure the strength of the installation and connection of the sealing cover 3 and the connecting pipe 2 even in the case of small-volume production, and at the same time, the production efficiency can be improved, the output can be increased, and greater economic benefits can be created.

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Abstract

一种输液软袋的密封结构，包括连接管（2）和与连接管（2）配合的封口盖（3），沿所述连接管（2）的内壁上设有凸起（20），沿所述封口盖（3）外圆周上设有与所述凸起（20）相配合的环槽（30），所述凸起（20）可嵌入所述环槽（30）内，限制所述封口盖（3）的运动，由于在连接管（2）内设置凸起（20），在封口盖（3）上设置与凸起（20）配合的环槽（30），安装时将封口盖（3）向连接管（2）内塞入，使连接管（2）内的凸起（20）卡入到封口盖（3）的环槽（30）内，就可以使得封口盖（3）将连接管（2）封闭，省去了焊接的步骤，方便操作加工；而且在生产中，这种连接方式相比塑料的焊接，连接管（2）与封口盖（3）之间的连接强度更大，更加稳定，良品率更高；同时利用机械配合的方式连接，不需要焊接，节省能源，不仅环保，而且对于操作者来说更加健康。

Description

一种输液软袋的密封结构 【技术领域】
本发明属于机械技术领域，更具体的说，涉及一种输液软袋的密封结构。
【背景技术】
生产输液软袋时，需要使用封口盖将连接管的管口进行密封，在使用输液软袋时，需要解除密封使用。通常生产中使用焊接的方式将管口密封，在制造和使用中，发现焊接操作比较复杂，焊接点必须足够多，不然连接管与封口盖之间的连接强度可能不够大，而塑料材质的连接管与封口盖又不易检测焊接点。
【发明内容】
本发明所要解决的技术问题是提供一种方便加工的输液软袋的密封结构。
本发明的目的是通过以下技术方案来实现的：
一种输液软袋的密封结构，包括连接管和与连接管配合的封口盖，沿所述连接管的内壁上设有凸起，沿所述封口盖外圆周上设有与所述凸起相配合的环槽，所述凸起可嵌入所述环槽内，限制所述封口盖的运动。
进一步的，所述凸起具有阻止封口盖向连接管外部运动的第一阻挡面，所述环槽具有具有与所述第一阻挡面配合的第二阻挡面，所述第一阻挡面为斜面，所述第二阻挡面为斜面。相互接触配合的面设为斜面，这样便于封口盖与连接管的配合，方便安装或者取出。
进一步的，所述第一阻挡面与连接管轴线的锐角夹角为三十五度至五十度，所述第二阻挡面与连接管轴线的锐角夹角为五十二度至六十二度。经过多次试验发现，当设置以上角度时，封口盖与连接管之间的配合的力均在一百五十牛顿以上，实际使用中，封口盖与连接管之间的配合的力在一百五十牛顿以上时，可以有效防止封口盖在未使用状态时的打开。
进一步的，所述第一阻挡面与连接管轴线的锐角夹角为五十度，所述第二阻挡面与连接管轴线的锐角夹角为五十七度。当设置以上所述的角度时，可以使封口盖与连接管之间的配合的力最大，试验得出的数据二百七十牛顿以上。
进一步的，所述连接管与封口盖相互接触的部位设有焊点。在连接管与封口盖相互接触的部位设置焊点，可以进一步强化封口盖与连接管之间的连接强度，使连接更加牢靠。
进一步的，所述焊点设置在连接管的端口面上。在连接管的端口出焊接，这样方便操作。
进一步的，其特征在于，所述封口盖上设有导针孔，所述导针孔上设有将导针孔封闭的拉扣。使用拉扣封闭导针孔，这样在使用时拉开拉扣就可以露出导针孔，方便使用。
进一步的，所述拉扣的方向与连接管轴向平行。拉扣的方向与连接管轴向平行，在使用时更好拉开。
进一步的，所述拉扣的方向与连接管轴向垂直。拉扣的方向与连接管轴向垂直，可以避免意外碰触到拉扣，损坏拉扣。
进一步的，所述凸起具有阻止封口盖向连接管外部运动的第一阻挡面，所述环槽上具有具有与所述第一阻挡面配合的第二阻挡面，所述第一阻挡面与第二阻挡面都是斜面，所述第一阻挡面与连接管轴线的锐角夹角为五十度，所述第二阻挡面与连接管轴线的锐角夹角为五十七度，所述封口盖上设有导针孔，所述导针孔上设有将导针孔封闭的拉扣，所述拉扣的方向与连接管轴向平行或者垂直。相互接触配合的面设为斜面，这样便于封口盖与连接管的配合，方便安装或者取出，当设置以上所述的角度时，可以使封口盖与连接管之间的配合的力最大，试验得出的数据二百七十牛顿以上，使用拉扣封闭导针孔，这样在使用时拉开拉扣就可以露出导针孔，方便使用。
本发明由于在连接管内设置凸起，在封口盖上设置于凸起配合的环槽，安装时，将封口盖向连接管内塞入，使连接管内的凸起卡入到封口盖的环槽内， 就可以使得封口盖将连接管封闭，省去了焊接的步骤，方便操作加工，只需要模具制造出来相应的零件进行配合即可；而且在生产中，这种连接方式相比塑料的焊接，连接管与封口盖之间的连接强度更大，更加稳定，良品率更高；同时利用机械配合的方式连接，不需要焊接，节省能源，不仅环保，而且对于操作者来说更加健康。
【附图说明】
图1是本发明实施例一封口盖的结构示意图；
图2是本发明实施例一连接管的局部结构示意图；
图3是本发明实施例二封口盖的第二阻挡面为五十二度的结构示意图；
图4是本发明实施例二封口盖的第二阻挡面为六十二度的结构示意图；
图5是本发明实施例三连接管的第一阻挡面为三十五度的结构示意图。
其中：1、轴线，2、连接管，3、封口盖，20、凸起，21、第一阻挡面，22、中间面，23、导入面，24、端口面，25、台阶圆面，26、台阶面，27、过渡面，30、环槽，31、导针孔，32、第二阻挡面，33、中间配合面，34、导入配合面，35、端口配合面，36、台阶配合圆面，37、台阶配合面，38、过渡配合面，39、导向面，41、拉扣，42、容置空间，43、孔壁。
【具体实施方式】
一种输液软袋的密封结构，包括连接管和与连接管配合的封口盖，沿所述连接管的内壁上设有凸起，沿所述封口盖外圆周上设有与所述凸起相配合的环槽，所述凸起可嵌入所述环槽内，限制所述封口盖的运动。
本发明由于在连接管内设置凸起，在封口盖上设置于凸起配合的环槽，安装时，将封口盖向连接管内塞入，使连接管内的凸起卡入到封口盖的环槽内，就可以使得封口盖将连接管封闭，省去了焊接的步骤，方便操作加工，只需要模具制造出来相应的零件进行配合即可；而且在生产中，这种连接方式相比塑 料的焊接，连接管与封口盖之间的连接强度更大，更加稳定，良品率更高；同时利用机械配合的方式连接，不需要焊接，节省能源，不仅环保，而且对于操作者来说更加健康。
下面结合附图和较佳的实施例对本发明作进一步说明。
实施例一
如图1和图2所示，一种输液软袋的密封结构，包括连接管2和封口盖3，连接管2包括连接管口，连接管2是圆柱状的，具有轴线1。封口盖3可以沿轴线1塞入连接管2内，封闭连接管口。连接管口内设有凸起20，凸起20沿连接管2的内壁圆周设置，在封口盖3上设有与凸20起配合的环槽30，环槽30封口盖3的外圆周设置。将封口盖3安装在连接管2内后，凸起20与环槽30配合，凸起20具有第一阻挡面21，第一阻挡面21是倾斜的，倾斜的一面朝向连接管2的轴线1，环槽30具有第二阻挡面32，封口盖3安装在连接管2内后，第一阻挡面21与第二阻挡面32可以接触配合，凸起20就卡入在环槽30内，阻挡封口盖3与连接管2脱开。这样形成了卡合的结构，将连接管2与封口盖3连接，这样连接方式简便，而且牢固，省去了焊接的步骤，提高了加工的效率，按照这种方式生产效应的模具，可以简化输液软袋的生产步骤，便于工业化大规模生产，另外，这样连接方式不仅环保，而且对生产环境的要求也不高，有利于改善生产工人的工作环境，保护工人的健康。
封口盖3安装在连接管2上后，封口盖3的中心轴线与连接管2的轴线1重合，从而保证配合的精度，而且也可以方便批量生产。
随着输液软袋应用的日益广泛，临床上的封口盖3脱落问题已成为影响产品质量的重要因素，塞盖脱落后，对药液造成污染，输液将无法继续使用；塞盖脱落后，药液洒落到病床或病人身上，污染环境和伤及人身安全。所以封口盖3与连接管2之间配合的力应该适当的增大，增强输液软袋的使用安全性。经研究发现，现有的输液软袋中的连接管与封口盖连接的抗拉力在一百五十牛顿以下，这样抗拉力过小，容易造成连接管2与封口盖3之间的意外脱离。
本发明作出进一步改进，其中，第一阻挡面21与连接管2的轴线1的锐角夹角设置在三十五到五十度，第二阻挡面32与连接管2的轴线1的锐角夹角在五十二到六十二度，经过力学分析和实验发现，这样的角度设置可以使连接管2与封口盖3之间的抗拉力在一百五十牛顿以上，从而更加有效的防止了输液软袋在未使用状态时封口盖3从连接管2内的脱离，避免意外情况的发生，大大提高了输液软袋的安全性。
本实施例中，第一阻挡面21与连接管2的轴线1的锐角夹角设置为五十度，第二阻挡面32与连接管2的轴线1的锐角夹角为五十七度，通过多次实验发现，这样的角度设置，连接管2与封口盖3连接的抗拉力是较大的，达到二百七十牛顿以上，更有效的避免了连接管2与封口盖3之间的意外脱离，保证了连接管2与封口盖3卡合连接的稳定性，进一步提高了输液软袋的安全性。
凸起20还具有导入面23，导入面23是用来方便封口盖3塞入到连接管2内的，导入面23与第一阻挡面21之间设有中间面22连接，第一阻挡面21与中间面22之间的夹角是钝角，导入面23与中间面22之间的夹角也是钝角，上述两个钝角的角度可以是相同的，也可以不同。第一阻挡面21、中间面22和导入面23组成凸起20，中间面22是绕轴线1形成的圆柱面，轴线1与中间面22平行。为方便封口盖3塞入到连接管2内，在凸起20的导入面23的另一端设有过渡面27，过渡面27是绕轴线1形成的圆柱面，轴线1与过渡面27平行。连接管2的开口端设有端口面24，端口面24与轴线1垂直，可以让封口盖3与连接管2安装后，在端口面24上焊接，更进一步的稳定封口盖3与连接管2的连接。为方便封口盖3塞入连接管2内时，在连接管2的定位，连接管2内设有台阶面26，台阶面26与轴线1垂直设置，台阶面26一端与过渡面27相连接，另一端设有台阶圆面25连接，台阶圆面25还与端口面24连接，台阶圆面25是绕轴线1形成的圆柱面，台阶圆面25与轴线1平行。
封口盖3内设有圆柱形的容置空间42，容置空间42内是用于安装橡胶塞的，这样在封口盖3与连接管2连接是，橡胶塞可以封闭连接管2的管口，为方便 安装橡胶塞，容置空间42的一端连接外部，另一端设有拉扣41封闭容置空间42，在拉扣41与容置空间42之间设有导针孔31，导针孔31是用来方便输液软袋在使用时，针头容易通过导针孔31插入到连接管2内，用以输液或者注入液体。拉扣41可以保护导针孔31，拉扣41可以拉开，方便针头进入导针孔31，拉扣41可以与轴线1平行设置，这样进行拉开操作比较方便；拉扣41也可以与轴线1垂直设置，这样拉扣41不容易被意外拉开，从而提高安全性。
容置空间42具有孔壁43。孔壁43相邻的是外侧，外侧上设有与第一阻挡面21配合的第二阻挡面32，与第二阻挡面32相连接的设有方便封口盖3安装到连接管2内的导向面39，导向面39与导入面23配合，以合适的倾斜角度方便封口盖3进入到连接管2内。第二阻挡面32的另一端设有中间配合面33与第二阻挡面32连接，中间配合面33与中间面22配合，中间配合面33的另一端连接有导入配合面34，封口盖3安装到连接管2内后，导入配合面34与导入面23相配合，第二阻挡面32、中间配合面33和导入配合面34形成环槽30，环槽30成开口状，向外张开。导入配合面34的另一端连接有过渡配合面38与过渡面27配合，过渡配合面38的另一端连接有与台阶面26配合的台阶配合面37，台阶配合面37的另一端连接有台阶配合圆面36与台阶圆面25配合，台阶圆面25的另一端连接有端口配合面35与端口面24配合。
这样形成结构，凸起20与环槽30之间是形成卡合的，通过第一阻挡面21和第二阻挡面32阻止封口盖3与连接管2的脱离，同时多层配合结构不仅强化连接的稳定性，还可以防止液体从连接管2中渗出，减小液体渗出的几率，保证安全性。
在端口面24和端口配合面35之间可以设置焊点，焊接封口盖3与连接管2，这样可以进一步加强封口盖3与连接管2之间的连接，提高输液软袋的安全性。
另外，连接管2与封口盖3的结构也可以对调，可以在连接管内设置环槽，相应的在封口盖中设置凸起。
实施例二
如图3和图4所示，实施例二与实施例一的不同之处在于，封口盖3的第二阻挡面32与连接管2的轴线1的锐角夹角为五十二度到六十二度。经过力学分析和实验测试发现，当封口盖3的第二阻挡面32与连接管2的轴线1的锐角夹角为五十二时，封口盖3可以与第一阻挡面21与轴线1的锐角夹角为五十度的连接管2配合安装，并且封口盖3与连接管2连接的抗拉力在一百五十牛顿以上；封口盖3也可以与第一阻挡面21与轴线1的锐角夹角为三十五度的连接管2配合安装，并且封口盖3与连接管2连接的抗拉力在一百五十牛顿以上。
同样经过力学分析和实验测试发现，当封口盖3的第二阻挡面32与连接管2的轴线1的锐角夹角为六十二度时，封口盖3可以与第一阻挡面21与轴线1的锐角夹角为五十度的连接管2配合安装，并且封口盖3与连接管2连接的抗拉力在一百五十牛顿以上；封口盖3也可以与第一阻挡面21与轴线1的锐角夹角为三十五度的连接管2配合安装，并且封口盖3与连接管2连接的抗拉力在一百五十牛顿以上。
这样的设置可以使得在大批量生产中，即使出现小的误差，也可以保证封口盖3与连接管2安装连接的强度，同时也可以提高生产效率，提高产量，创造更大的经济效益。
实施例三
如图5所示，实施例三与实施例一的不同之处在于，连接管2的第一阻挡面21与轴线1的锐角夹角设置为三十五度到五十度。经过力学分析和实验测试发现，当连接管2的第一阻挡面21与轴线1的锐角夹角为三十五度时，连接管2可以与第二阻挡面32与轴线1的锐角夹角为五十二度的封口盖3配合安装，并且连接管2与封口盖3连接的抗拉力在一百五十牛顿以上；连接管2也可以与第二阻挡面32与轴线1的锐角夹角为六十二度的封口盖3配合安装，并且连接管2与封口盖3连接的抗拉力在一百五十牛顿以上。
同样经过力学分析和实验测试发现，当连接管2的第一阻挡面21与轴线1的锐角夹角为五十度时，连接管2可以与第二阻挡面32与轴线1的锐角夹角为五十二度的封口盖3配合安装，并且连接管2与封口盖3连接的抗拉力在一百五十牛顿以上；连接管2也可以与第二阻挡面32与轴线1的锐角夹角为六十二度的封口盖3配合安装，并且连接管2与封口盖3连接的抗拉力在一百五十牛顿以上。
这样的设置可以使得在大批量生产中，即使出现小的误差，也可以保证封口盖3与连接管2安装连接的强度，同时也可以提高生产效率，提高产量，创造更大的经济效益。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (10)

  1. 一种输液软袋的密封结构，包括连接管和与连接管配合的封口盖，其特征在于，沿所述连接管的内壁上设有凸起，沿所述封口盖外圆周上设有与所述凸起相配合的环槽，所述凸起可嵌入所述环槽内，限制所述封口盖的运动。
  2. 如权利要求1所述的一种输液软袋的密封结构，其特征在于，所述凸起具有阻止封口盖向连接管外部运动的第一阻挡面，所述环槽具有具有与所述第一阻挡面配合的第二阻挡面，所述第一阻挡面为斜面，所述第二阻挡面为斜面。
  3. 如权利要求2所述的一种输液软袋的密封结构，其特征在于，所述第一阻挡面与连接管轴线的锐角夹角为三十五度至五十度，所述第二阻挡面与连接管轴线的锐角夹角为五十二度至六十二度。
  4. 如权利要求2所述的一种输液软袋的密封结构，其特征在于，所述第一阻挡面与连接管轴线的锐角夹角为五十度，所述第二阻挡面与连接管轴线的锐角夹角为五十七度。
  5. 如权利要求1所述的一种输液软袋的密封结构，其特征在于，所述连接管与封口盖相互接触的部位设有焊点。
  6. 如权利要求5所述的一种输液软袋的密封结构，其特征在于，所述焊点设置在连接管的端口面上。
  7. 如权利要求1至6任一所述的一种输液软袋的密封结构，其特征在于，所述封口盖上设有导针孔，所述导针孔上设有将导针孔封闭的拉扣。
  8. 如权利要求7所述的一种输液软袋的密封结构，其特征在于，所述拉扣的方向与连接管轴向平行。
  9. 如权利要求7所述的一种输液软袋的密封结构，其特征在于，所述拉扣的方向与连接管轴向垂直。
  10. 如权利要求1所述的一种输液软袋的密封结构，其特征在于，所述凸起具有阻止封口盖向连接管外部运动的第一阻挡面，所述环槽上具有具有与所 述第一阻挡面配合的第二阻挡面，所述第一阻挡面与第二阻挡面都是斜面，所述第一阻挡面与连接管轴线的锐角夹角为五十度，所述第二阻挡面与连接管轴线的锐角夹角为五十七度，所述封口盖上设有导针孔，所述导针孔上设有将导针孔封闭的拉扣，所述拉扣的方向与连接管轴向平行或者垂直。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10030474C1 (de) * 2000-06-21 2002-02-21 Fresenius Kabi De Gmbh Konnektor für medizinische Flüssigkeiten enthaltende Verpackungen sowie Verpackung für medizinische Flüssigkeiten
CN2812919Y (zh) * 2005-08-03 2006-09-06 青岛华仁药业股份有限公司 非pvc软袋输液加药连接管口盖
CN201026297Y (zh) * 2007-04-15 2008-02-27 江门市新兴业包装材料有限公司 一种用于输液软袋包装用接口组合盖
CN201079560Y (zh) * 2007-10-23 2008-07-02 岳滨 输液软袋接口密封装置
CN201157545Y (zh) * 2008-01-29 2008-12-03 青岛华仁药业股份有限公司 非pvc软袋输液连接管口盖
CN205019419U (zh) * 2015-09-02 2016-02-10 青岛华仁医疗用品有限公司 一种塑料输液软袋组合接口

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10030474C1 (de) * 2000-06-21 2002-02-21 Fresenius Kabi De Gmbh Konnektor für medizinische Flüssigkeiten enthaltende Verpackungen sowie Verpackung für medizinische Flüssigkeiten
CN2812919Y (zh) * 2005-08-03 2006-09-06 青岛华仁药业股份有限公司 非pvc软袋输液加药连接管口盖
CN201026297Y (zh) * 2007-04-15 2008-02-27 江门市新兴业包装材料有限公司 一种用于输液软袋包装用接口组合盖
CN201079560Y (zh) * 2007-10-23 2008-07-02 岳滨 输液软袋接口密封装置
CN201157545Y (zh) * 2008-01-29 2008-12-03 青岛华仁药业股份有限公司 非pvc软袋输液连接管口盖
CN205019419U (zh) * 2015-09-02 2016-02-10 青岛华仁医疗用品有限公司 一种塑料输液软袋组合接口

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