WO2018090551A1 - 一种防滴漏吸引管连接接头 - Google Patents

一种防滴漏吸引管连接接头 Download PDF

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Publication number
WO2018090551A1
WO2018090551A1 PCT/CN2017/080344 CN2017080344W WO2018090551A1 WO 2018090551 A1 WO2018090551 A1 WO 2018090551A1 CN 2017080344 W CN2017080344 W CN 2017080344W WO 2018090551 A1 WO2018090551 A1 WO 2018090551A1
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spring
fixed end
elastic sealing
guide
ring
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PCT/CN2017/080344
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English (en)
French (fr)
Inventor
张柱华
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常州帝斯博医疗用品有限公司
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Publication of WO2018090551A1 publication Critical patent/WO2018090551A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L29/00—Joints with fluid cut-off means
    • F16L29/02—Joints with fluid cut-off means with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied

Definitions

  • the invention relates to the technical field of suction pipe joint joint equipment, in particular to an anti-drip suction pipe joint.
  • the suction pipe joint is widely used in daily life and industrial production. It can be said that it is ubiquitous.
  • the traditional suction pipe joints generally adopt the in-line structure, and the in-line structure is fixed by the interference fit, but if the interference is excessive If it is too large, it will easily cause installation difficulties. If the interference is too small, the fixing will be unreliable. Especially when changing the suction pipe connection joint, the water in the pipe will cause great trouble to the installation.
  • the joints are normally open. When the joint is removed after the work is finished, the liquid remaining in the pipeline is likely to be leaky and inconvenient; the joint fixed on the collecting device also needs to be plugged to ensure that the liquid in the device does not leak, and the installation appears Especially troublesome.
  • the object of the present invention is to provide an anti-drip suction pipe connecting joint, which has the advantages of quick installation and reliable connection, and has a self-locking function of positioning and positioning, and can effectively avoid dripping of residual liquid in the pipeline, so as to solve the above-mentioned background art installation. Difficulties, the fixing of the installation is unreliable, and the liquid in the catheter is liable to leak, causing inconvenience.
  • the present invention provides the following technical solutions:
  • An anti-drip suction pipe connecting joint comprises a joint body, a fixed end, a 90° interface end, an elastic sealing body, a valve core and a spring; the joint body is sealed and fixedly connected at a fixed end, and the 90° interface end and the fixed end are rotated and sealed
  • the lower end of the fixed end is provided with a guiding groove.
  • the valve core comprises a plunger and a guiding wing edge having the same number as the guiding groove.
  • the guiding wing edge of the valve core is slidably engaged with the guiding groove, and one end of the spring is opposite to the fixed end.
  • the elastic sealing body comprises an annular body, the lower end of the annular body has an upwardly extending tapered ring; the tapered ring is provided with a fluid through hole, the elastic sealing body The lower end is opposite to the step in the body, and a wing-shaped liquid-retaining groove is formed between the annular body on the elastic sealing body and the tapered ring, and the plunger is sealed against the fluid through-hole of the elastic sealing body by a spring.
  • the central fluid passage hole of the wing-shaped container shaft of the present invention is driven by the spring to be in a closed state when in the non-operating state.
  • the 90° interface end outer diameter has an annular boss
  • the fixed end inner diameter also has an annular limiting boss
  • the interface end having the annular boss section is inserted in the fixed end.
  • Such a 90° interface end has a rotation about the axis 360 degrees of freedom. It can guarantee that the joint can be connected at any position.
  • the outer side of the joint body is provided with a guiding groove and a positioning groove, and the guiding groove is in communication with the positioning groove. This makes it easy to connect to the interface.
  • the present invention has the beneficial effects that the anti-drip suction pipe connecting joint can be connected to the interface conveniently through the guiding groove and the positioning groove when connecting, and has a wing-shaped liquid after pumping the fluid.
  • the trough allows the remaining liquid in the joint to be returned to the wing-shaped liquid tank, so that no leakage is caused after the joint is taken out, which is very practical for recycling, especially for medically infectious fluids, and does not cause secondary pollution.
  • Figure 1 is a schematic view of the overall structure of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is a perspective view of the explosion of the present invention.
  • Figure 4 is a schematic view showing the structure of the fixed end of the present invention.
  • an anti-drip suction pipe connecting joint is characterized in that it comprises a joint body 1, a fixed end 2, a 90° interface end 3, an elastic sealing body 4, a valve core 5, and a spring 6; the joint body 1 is sealingly and fixedly connected to the fixed end 2, and the 90° interface end 3 is connected to the fixed end 2 in a rotationally sealed manner.
  • the lower end of the fixed end 2 is provided with a guiding groove 2-1
  • the valve core 5 includes a plunger 5-1 and the same number of guide hem 5-2 as the guide groove 2-1, the guide hem 5-2 of the spool 5 is slidably engaged with the guide groove 2-1, and one end of the spring 6 is offset from the fixed end 2 The other end of the spring 6 abuts against the spring card slot 5-3 on the guiding wing 5-2.
  • the elastic sealing body 4 includes an annular body 4-1, and the lower end of the annular body 4-1 has an upwardly extending tapered ring.
  • the tapered ring 4-2 is provided with a fluid through hole 4-3, the lower end of the elastic sealing body 4 is abutted against the step 1-1 in the body 1, and the annular body 4-1 on the elastic sealing body 4 is Forming a wing between the tapered rings 4-2 In the liquid reservoir 4-4, the plunger 5-1 is sealed against the fluid through hole 4-3 of the elastic sealing body 4 by the spring 6.
  • the outer end of the 90° interface end 3 has an annular boss 3-1
  • the inner end of the fixed end 2 also has an annular limiting boss 2-2
  • the interface end 3 having an annular boss 3-1 is inserted in the Inside the fixed end 2.
  • the lowermost annular boss 3-1 on the outer diameter of the 90° interface end 3 and the lowermost annular limit boss 2-2 on the inner diameter of the fixed end 2 are in close contact with each other, thereby preventing The 90° interface end 3 is strung up and down.
  • the outer side of the joint body 1 is provided with a guiding groove 1-2 and a positioning groove 1-3, and the guiding groove 1-2 is in communication with the positioning groove 1-3.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

一种防滴漏吸引管连接接头，包括接头本体（1）、固定端（2）、90°接口端（3）、弹性密封体（4）、阀芯（5）和弹簧（6）；所述接头本体与固定端密封固定连接，90°接口端与固定端旋转密封连接，所述固定端的下端设置有导向槽（2-1），阀芯包括柱塞（5-1）和与导向槽数量相同的导向翼边（5-2），阀芯的导向翼边与导向槽滑动配合，所述弹簧的一端与固定端相抵，弹簧的另一端与导向翼边上的弹簧卡槽（5-3）相抵，弹性密封体包括环状本体（4-1），环状本体的下端具有向上延伸的锥形环（4-2）；锥形环上开有流体通孔（4-3），弹性密封体的下端与本体内的台阶（1-1）相抵，弹性密封体上的环状本体与锥形环之间形成翼状容液槽（4-4），所述柱塞通过弹簧与弹性密封体的流体通孔密封相抵。接头依靠自身的结构能在就位时自动打开，脱离工作***后能自动关闭，能有效地避免工作管路中残液在脱离工作***后滴漏，提高了***的安全性。

Description

一种防滴漏吸引管连接接头 技术领域
本发明涉及吸引管连接接头设备技术领域，尤其是一种防滴漏吸引管连接接头。
背景技术
吸引管连接接头广泛应用于日常生活和工业生产中，可以说无处不在，传统的吸引管连接接头普遍采用直插式结构，直插式结构依靠过盈配合来固定，但是，如果过盈量过大则容易造成安装困难，过盈量太小则造成固定不可靠，特别是在换装吸引管连接接头时，管中的水对安装造成了很大的麻烦，引管连接接头的两端接头都是常开状态，工作结束后拔除接头时，导管中残留的液体容易会有泄露造成不便；固定在收集装置上的接头也需要塞上塞子才能保证装置中的液体不会泄露，安装显得特别麻烦。
发明内容
本发明的目的在于提供一种防滴漏吸引管连接接头，具有安装快捷并且连接可靠，具有定位就位自锁功能，能有效的避免管路中残液的滴漏，以解决上述背景技术中提出安装困难，安装的固定性不可靠，导管中的液体容易泄露造成不便的问题。
为实现上述目的，本发明提供如下技术方案：
一种防滴漏吸引管连接接头，包括接头本体、固定端、90°接口端、弹性密封体、阀芯和弹簧；所述接头本体于固定端密封固定连接，90°接口端与固定端旋转密封连接，所述固定端的下端设置有导向槽，阀芯包括柱塞和与导向槽数量相同的导向翼边，阀芯的导向翼边与导向槽滑动配合，所述弹簧的一端与固定端相抵，弹簧的另一端与导向翼边上的弹簧卡槽相抵，弹性密封体包括环状本体，环状本体的下端具有向上延伸的锥形环；锥形环上开有流体通孔，弹性密封体的下端与本体内的台阶相抵，弹性密封体上的环状本体与锥形环之间形成翼状容液槽，所述柱塞通过弹簧与弹性密封体的流体通孔密封相抵。
本发明的翼状容液槽轴中心流体通孔在非工作状态时由弹簧驱动阀芯呈关闭状态。
作为本发明进一步的方案：所述90°接口端外径具有环状凸台，固定端内径也具有环状限位凸台，具有环状凸台段的接口端插装在固定端内。这样90°接口端具有绕轴线转动 360°的自由度。能保证任一位置都能连接接头。
作为本发明进一步的方案：所述接头本体外侧开有导向槽与定位槽，且导向槽与定位槽相通。这样能方便与接口进行连接。
与现有技术相比，本发明有益效果：本防滴漏吸引管连接接头，在连接时只需要通过导向槽和定位槽能很方便的对接口进行连接，在抽吸流体后由于具有翼状容液槽使得接头内剩余的液体可以回流到翼状容液槽内，这样拿出接头后不会造成滴漏，对于有污染特别是医用上具有传染性体液的回收非常实用，不会造成二次污染的问题。
附图说明
图1为本发明的整体结构示意图；
图2是图1的A-A方向剖视示意图；
[根据细则91更正 19.06.2017]　
图3本发明的***立体示意图；
图4是本发明的固定端结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1-4，本发明实施例中，一种防滴漏吸引管连接接头，其特征在于：包括接头本体1、固定端2、90°接口端3、弹性密封体4、阀芯5和弹簧6；所述接头本体1于固定端2密封固定连接，90°接口端3与固定端2旋转密封连接，所述固定端2的下端设置有导向槽2-1，阀芯5包括柱塞5-1和与导向槽2-1数量相同的导向翼边5-2，阀芯5的导向翼边5-2与导向槽2-1滑动配合，所述弹簧6的一端与固定端2相抵，弹簧6的另一端与导向翼边5-2上的弹簧卡槽5-3相抵，弹性密封体4包括环状本体4-1，环状本体4-1的下端具有向上延伸的锥形环4-2；锥形环4-2上开有流体通孔4-3，弹性密封体4的下端与本体1内的台阶1-1相抵，弹性密封体4上的环状本体4-1与锥形环4-2之间形成翼状 容液槽4-4，所述柱塞5-1通过弹簧6与弹性密封体4的流体通孔4-3密封相抵。
所述90°接口端3外径具有环状凸台3-1，固定端2内径也具有环状限位凸台2-2，具有环状凸台3-1段的接口端3插装在固定端2内。本发明中，90°接口端3外径上最下端的环状凸台3-1与固定端2内径上最下端的环状限位凸台2-2是紧靠在一起的，这样可以防止90°接口端3的上下串动。
所述接头本体1外侧开有导向槽1-2与定位槽1-3，且导向槽1-2与定位槽1-3相通。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (3)

  1. 一种防滴漏吸引管连接接头，其特征在于：包括接头本体(1)、固定端(2)、90°接口端(3)、弹性密封体(4)、阀芯(5)和弹簧(6)；所述接头本体(1)于固定端(2)密封固定连接，90°接口端(3)与固定端(2)旋转密封连接，所述固定端(2)的下端设置有导向槽(2-1)，阀芯(5)包括柱塞(5-1)和与导向槽(2-1)数量相同的导向翼边(5-2)，阀芯(5)的导向翼边(5-2)与导向槽(2-1)滑动配合，所述弹簧(6)的一端与固定端(2)相抵，弹簧(6)的另一端与导向翼边(5-2)上的弹簧卡槽(5-3)相抵，弹性密封体(4)包括环状本体(4-1)，环状本体(4-1)的下端具有向上延伸的锥形环(4-2)；锥形环(4-2)上开有流体通孔(4-3)，弹性密封体(4)的下端与本体(1)内的台阶(1-1)相抵，弹性密封体(4)上的环状本体(4-1)与锥形环(4-2)之间形成翼状容液槽(4-4)，所述柱塞(5-1)通过弹簧(6)与弹性密封体(4)的流体通孔(4-3)密封相抵。
  2. 根据权利要求1所述的一种防滴漏吸引管连接接头，其特征在于：所述90°接口端(3)外径具有环状凸台(3-1)，固定端(2)内径也具有环状限位凸台(2-2)，具有环状凸台(3-1)段的接口端(3)插装在固定端(2)内。
  3. 根据权利要求1所述的一种防滴漏吸引管连接接头，其特征在于：所述接头本体(1)外侧开有导向槽(1-2)与定位槽(1-3)，且导向槽(1-2)与定位槽(1-3)相通。
PCT/CN2017/080344 2016-11-21 2017-04-13 一种防滴漏吸引管连接接头 WO2018090551A1 (zh)

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CN201611039080.7A CN106382427B (zh) 2016-11-21 2016-11-21 一种防滴漏吸引管连接接头

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