WO2016106991A1 - 快插结构及采用所述快插结构的发动机 - Google Patents

快插结构及采用所述快插结构的发动机 Download PDF

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Publication number
WO2016106991A1
WO2016106991A1 PCT/CN2015/075706 CN2015075706W WO2016106991A1 WO 2016106991 A1 WO2016106991 A1 WO 2016106991A1 CN 2015075706 W CN2015075706 W CN 2015075706W WO 2016106991 A1 WO2016106991 A1 WO 2016106991A1
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WIPO (PCT)
Prior art keywords
quick
plug
joint
slot
claw
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PCT/CN2015/075706
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English (en)
French (fr)
Inventor
朱东升
李龙超
杜鹏
滕建耐
张增光
许涛
王锦艳
张良超
阮仁宇
杨冰
张辰
侯亦波
Original Assignee
安徽江淮汽车股份有限公司
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Application filed by 安徽江淮汽车股份有限公司 filed Critical 安徽江淮汽车股份有限公司
Priority to BR212017014222-3U priority Critical patent/BR212017014222Y1/pt
Publication of WO2016106991A1 publication Critical patent/WO2016106991A1/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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • 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
    • F16L43/00—Bends; Siphons
    • F16L43/02—Bends; Siphons adapted to make use of special securing means

Definitions

  • the utility model relates to the field of pipeline connection, in particular to a quick insertion structure and an engine using the quick insertion structure.
  • the quick-release structure is widely used for pipe connection because of its convenient operation.
  • the prior art quick-insertion structure is as shown in FIG. 1.
  • a jaw 3 is mounted on the joint 1
  • a claw 4 is formed in the claw 3
  • a tongue 5 is provided on the plug 2
  • the plug 2 is inserted into the joint 1
  • the tongue 5 is completely engaged with the card slot 4 by the tongue 5, and the sealing ring 6 pushes the tab 5 into the card slot 4 in the radial direction in addition to the sealing action.
  • the prior art quick-release structure has the following disadvantages when applied to an engine:
  • the O-ring 6 is used between the plug 2 and the joint 1 to seal the gas or liquid, and the sealing ring 6 is subjected to the shearing force of the mating surface of the mating position, so that it is relatively slipped and deformed, and the seal ring is easily damaged. Sealing results in leakage at the joint.
  • the purpose of the present invention is to overcome the above problems and to provide a quick-connect structure with a more stable connection.
  • an embodiment of the present invention provides the following technical solutions:
  • a quick insertion structure comprising a plug having a flat cut surface extending axially from an insertion end thereof, a slope extending from an end of the flat cut surface, and a card extending radially from an end of the inclined surface a joint having a claw, the claw having a card slot and a slot, the slot having a limiting surface; the flat cutting surface being inserted into the slot when the plug is inserted into the connector
  • the engaging surface cooperates with the limiting surface, and the starting end of the flat cutting surface to the engaging surface
  • the axial length is greater than the axial length of the starting end of the slot to the limiting surface.
  • the quick-release structure further comprises a sealing ring, and a position of the joint surrounded by the claw is provided with a sealing ring groove, and the sealing ring is located in the sealing ring groove.
  • the sealing ring is provided with a plurality of bumps along its circumferential interval.
  • the seal ring slots are at least two, wherein one seal ring groove is opposite to the card slot, and the other seal ring groove is offset from the card slot and away from the slot.
  • the claw is an elliptical ring shape
  • the card slot is located on the short axis of the elliptical ring
  • both ends of the long axis of the elliptical ring are the engaging portions of the claw, when the meshing portion is The card slot expands in the short axis direction when kneading.
  • the flat cutting surface since the axial length of the starting end of the flat cutting surface to the engaging surface is greater than the axial length of the starting end of the slot to the limiting surface, the flat cutting surface will face the limit after the plug is inserted into the joint.
  • the top surface is tight, so that the plug and the joint are not easily rotated relative to each other under vibration conditions, so that the connection between the two is more stable.
  • the bump on the sealing ring can make the sealing ring fit in the sealing groove, the bumps on both sides of the sealing ring are in contact with the two sides of the sealing ring groove, and the position of the sealing ring is fixed, and the quick insertion structure is sealed during assembly.
  • the position of the ring does not cause relative sliding, and the influence of the bump on the compression ratio and the filling rate of the sealing ring is very small, which improves the life of the sealing ring and makes the matching more reliable.
  • the expansion of the slot in the direction of the short axis of the elliptical ring enables the limiting piece and the engaging surface to be easily disengaged, thereby disassembling the quick-release structure and being convenient to operate.
  • FIG. 1 is a schematic structural view of a prior art quick insertion structure
  • Figure 2 is a front elevational view of the joint of the embodiment of the present invention.
  • Figure 3 is a left side view of the joint of Figure 2;
  • Figure 4 is a cross-sectional view taken along line A-A of 3;
  • Figure 5 is a cross-sectional view of the plug of the embodiment of the present invention.
  • Figure 6 is a perspective view of a seal ring of an embodiment of the present invention.
  • Figure 7 is a cross-sectional view of the quick insertion structure of the embodiment of the present invention.
  • Figure 8 is a schematic view showing the structure of a secondary air injection system employing the quick insertion structure of Figure 7 in an embodiment of the present invention.
  • the joint 100 has a jaw 110, and the jaw 110 is an elliptical ring whose center coincides with the center of the joint body 0100 of the joint 100.
  • the slot 112 of the claw 110 is located at a position where the elliptical ring is closest to the joint pipe body 0100 (ie, both ends of the elliptical annular short axis S), and the elliptical ring is farthest from the joint pipe body 0100 (ie, the long axis L of the elliptical ring shape) Both ends) are the engaging portions 111 of the claws 110.
  • the claw 110 is made of a material having a certain elasticity such as plastic.
  • the claw 110 of the joint 100 has a card slot 112 and a slot 113, and the card slot 112 has a limiting surface 115.
  • the axial length of the starting end 114 of the slot 113 to the limiting surface 115 is w1.
  • a position where the claw 110 is surrounded is opened with a first seal groove 130 and a second seal groove 140.
  • the first seal ring groove 130 is opposite to the card slot 112
  • the second seal ring groove 140 is offset from the card slot 112
  • the second seal ring groove 140 is farther from the slot 113 than the card slot 112, or the second seal
  • the ring groove 140 is closer to the interface end 120 of the joint 100.
  • the plug 200 has a flat cut surface 220 that extends axially from its insertion end 210, so the insertion end 210 is also the starting end of the flat cut surface 220.
  • the ramp 230 extends from the end of the flat cut surface 220, that is, the ramp start end 231.
  • the engagement surface 240 extends radially from the end 232 of the ramp 230.
  • the axial length of the starting end 210 to the engaging surface 240 of the flat cut surface 220 is w2.
  • the seal ring 300 is provided with a plurality of bumps 310 spaced apart in the circumferential direction thereof.
  • the plug 200 is inserted into the connector 100 to form a quick-release structure, and the hose 400 is coupled to the connector 100.
  • the flat cut surface 220 is inserted into the slot 113, and the engaging surface 240 is engaged with the limiting surface 115 so that the plug 200 does not come out of the joint 100.
  • the flat-cut surface 220 will tighten the engaging surface 240 toward the limiting surface 115, so that the plug 200 and the joint 100 are not easily rotated relative to each other under vibration conditions, and the connection is more stable.
  • Two seal rings 300 are located within the first seal ring groove 130 and the second seal ring groove 140, respectively.
  • the sealing ring 300 in the first sealing ring groove 130 also faces the bevel surface 230 radially toward the card slot 112, so that the plug 200 and the joint 100 are less likely to fall off.
  • the bumps 310 on the sealing ring 300 are in contact with the two sides of the first sealing ring groove 130 and the second sealing ring groove 140 to fix the position of the sealing ring 300, and the position of the sealing ring 300 during the quick insertion structure is not assembled.
  • the relative sliding is generated to make the fit more reliable, and the life of the sealing ring is improved, and the influence of the bump on the compression ratio and the filling rate of the sealing ring is very small.
  • the kneading force F shown in FIG. 3 is applied to the engaging portion 111, and the elliptical ring groove 112 is expanded in the short-axis direction, that is, in the radial direction in FIG. 7, the engaging surface 240 and the limit.
  • the face 115 is disengaged, and the plug 200 can be easily pulled out for easy operation.
  • the figure illustrates the application of the above-described quick insertion structure in an engine pipeline by taking a secondary air injection system as an example, but the quick insertion structure can also be applied to other pipeline connections of the engine.
  • the secondary air injection system includes a secondary air injection pump 500 and a secondary air combination valve 600, which are connected by a hose 400 therebetween. Among them, a quick insertion structure as shown in FIG. 7 is adopted between the hose 400 and the secondary air combination valve 600.

Abstract

一种快插结构，包括插头（200）和接头（100），插头（200）具有从其插入端开始轴向延伸的平切面（220）、从平切面（220）的末端开始延伸的斜面（230）、从斜面（230）的末端径向延伸的卡合面（240）；接头（100）具有卡爪（110），卡爪（110）具有卡槽（112）和插槽（113），卡槽（112）具有限位面（115）；当插头（200）插入所述接头（100）时，平切面（220）插入插槽（113）内，卡合面（240）与限位面（115）配合，平切面（220）的起始端至卡合面（240）的轴向长度大于插槽（113）的起始端至限位面（115）的轴向长度。还提供了采用上述快插结构的发动机。本发明具有连接稳固的优点。

Description

快插结构及采用所述快插结构的发动机 技术领域
本实用新型涉及管路连接领域，具体涉及一种快插结构及采用所述快插结构的发动机。
背景技术
快插结构由于具有操作便捷的优点而被广泛应用于管路连接。现有技术的快插结构如图1所示，在接头1上安装有卡爪3，卡爪3上开有卡槽4，在插头2上设有卡舌5，插头2插入接头1后，在轴向方向上两者之间完全依靠卡舌5与卡槽4配合定位，密封圈6除了起到密封作用外还在径向上推动卡舌5伸入卡槽4。现有技术中的快插结构应用于发动机时存在以下缺点：
1、发动机工作时会在插头2与接头1的配合处产生频繁的振动，由于卡舌5在卡槽4内具有一定的轴向运动自由度，使插头2与接头1之间绕着配合接口的中心线发生旋转，使配合接口脱离啮合，导致失去装配关系，连接失效；
2、插头2与接头1之间采用O型密封圈6来密封气体或液体，密封圈6受到配合位置的配合面的剪切力，使其产生相对滑动并变形，非常容易使密封圈损坏失去密封性导致配合处发生泄露。
实用新型内容
本实用新型的目的是克服上述问题，提供一种连接更稳固的快插结构。
为实现上述目的，本实用新型的实施例提供了如下技术方案：
一种快插结构，包括插头和接头，所述插头具有从其插入端开始轴向延伸的平切面、从所述平切面的末端开始延伸的斜面、从所述斜面的末端径向延伸的卡合面；所述接头具有卡爪，所述卡爪具有卡槽和插槽，所述卡槽具有限位面；当所述插头插入所述接头时，所述平切面插入所述插槽内，所述卡合面与所述限位面配合，所述平切面的起始端至所述卡合面的 轴向长度大于所述插槽的起始端至所述限位面的轴向长度。
优选地，所述快插结构还包括密封圈，所述接头上被所述卡爪环绕的位置开有密封圈槽，所述密封圈位于所述密封圈槽内。
优选地，所述密封圈沿其周向间隔设置有多个凸点。
优选地，所述密封圈槽至少为两个，其中一个密封圈槽与所述卡槽相对，另一个密封圈槽与所述卡槽偏离并且远离所述插槽。
优选地，所述卡爪为椭圆环形，所述卡槽位于所述椭圆环形的短轴上，所述椭圆环形的长轴的两端为所述卡爪的啮合部，当所述啮合部被捏合时所述卡槽在所述短轴方向上扩张。
一种发动机，所述发动机的管路采用如上所述的快插结构进行连接。
在本实用新型中，由于平切面的起始端至卡合面的轴向长度大于插槽的起始端至限位面的轴向长度，因此插头插入接头后，平切面会将卡合面向着限位面顶紧，使得插头与接头在振动条件下不容易发生相对旋转，使两者的连接更加稳固。
进一步地，密封圈上的凸点能够使得密封圈装配在密封圈槽内后，密封圈两侧的凸点与密封圈槽两侧面接触，固定住密封圈的位置，快插结构在装配时密封圈的位置不会产生相对滑动，且凸点对密封圈的压缩率和填充率影响非常小，提升了密封圈的寿命，使配合更加可靠。
进一步地，啮合部被捏合时卡槽在椭圆环形的短轴方向上扩张能够使限位片与卡合面很容易地脱离配合，从而将快插结构拆开，操作方便。
附图说明
接下来将结合附图对本实用新型的具体实施例作进一步详细说明，其中：
图1是现有技术的快插结构的结构示意图；
图2是本实用新型的实施例的接头的主视图；
图3是图2中的接头的左视图；
图4是沿3中的A-A线的剖视图；
图5是本实用新型的实施例的插头的剖视图；
图6是本实用新型的实施例的密封圈的立体图；
图7是本实用新型的实施例的快插结构的剖视图；
图8是本实用新型的实施例中采用图7中的快插结构的二次空气喷射系统结构示意图。
图中标记说明：100、接头，0100、接头管体，110、卡爪，111、啮合部，112、卡槽，113、插槽，114、起始端，115、限位面，120、接口端，130、第一密封圈槽，140、第二密封圈槽，200、插头，210、插入端，220、平切面，230、斜面，231、斜面起始端，232、斜面的末端，240、卡合面，300、密封圈，310、凸点，400、软管，500、二次空气喷射泵，600、二次空气组合阀。
具体实施方式
结合图2和图3，接头100具有卡爪110，并且卡爪110为椭圆环形，该椭圆环形的中心与接头100的接头管体0100的中心重合。卡爪110的卡槽112位于椭圆环形最靠近接头管体0100的位置(即椭圆环形的短轴S两端)，而该椭圆环形最远离接头管体0100的位置(即椭圆环形的长轴L两端)为卡爪110的啮合部111。卡爪110由塑料等具有一定弹性的材料制造，由于卡爪110的椭圆环形结构，因此当啮合部111被图3所示的捏合力F捏合时，椭圆环形倾向于变成圆环形，卡槽112在短轴方向上扩张。
参考图4，接头100的卡爪110具有卡槽112和插槽113，并且卡槽112具有限位面115。插槽113的起始端114至限位面115的轴向长度为w1。在接头100上，被卡爪110环绕的位置，开有第一密封圈槽130和第二密封圈槽140。其中，第一密封圈槽130与卡槽112相对，第二密封圈槽140与卡槽112偏离，并且第二密封圈槽140与卡槽112相比更加远离插槽113，或者说第二密封圈槽140更加靠近接头100的接口端120。
参考图5，插头200具有从其插入端210开始轴向延伸的平切面220，因此插入端210也是平切面220的起始端。斜面230从平切面220的末端，也就是斜面起始端231开始延伸。卡合面240从斜面230的末端232开始径向延伸。平切面220的起始端210至卡合面240的轴向长度为w2。
参考图6，密封圈300沿其周向方向间隔设置有多个凸点310。
参考图7，插头200插入接头100形成快插结构，软管400与接头100连接。此时，平切面220插入插槽113内，卡合面240与限位面115配合，使得插头200不会从接头100内脱出。并且在该快插结构中w2＞w1，因此平切面220会将卡合面240向着限位面115顶紧，使得插头200与接头100在振动条件下不容易发生相对旋转，连接更加稳固。两个密封圈300分别位于第一密封圈槽130和第二密封圈槽140内。第一密封圈槽130内的密封圈300除了起到密封作用外，还将斜面230径向顶向卡槽112，使得插头200与接头100更不容易脱落。同时，密封圈300上的凸点310与第一密封圈槽130和第二密封圈槽140的两侧面接触，固定住密封圈300的位置，快插结构在装配时密封圈300的位置不会产生相对滑动，使配合更加可靠，提升了密封圈的寿命，并且凸点对密封圈的压缩率和填充率影响非常的小。
当需要拆开连接时，对啮合部111施加图3所示的捏合力F，椭圆环卡槽112在短轴方向上，即图7中的径向方向上扩张，卡合面240与限位面115脱离接触，插头200能够很轻易地拔出，操作方便。
参考图8，该图以二次空气喷射系统为例描述了上述快插结构在发动机管路中的应用，但该快插结构还能够应用于发动机的其它管路连接。二次空气喷射系统包括二次空气喷射泵500和二次空气组合阀600，两者之间以软管400连接。其中，软管400与二次空气组合阀600之间采用了如图7所示的快插结构。
虽然本实用新型是结合以上实施例进行描述的，但本实用新型并不限定于上述实施例，而只受权利要求的限定，本领域普通技术人员能够容易地对其进行修改和变化，但并不离开本实用新型的实质构思和范围。

Claims (6)

  1. 一种快插结构，包括插头和接头，其特征在于，所述插头具有从其插入端开始轴向延伸的平切面、从所述平切面的末端开始延伸的斜面、从所述斜面的末端径向延伸的卡合面；所述接头具有卡爪，所述卡爪具有卡槽和插槽，所述卡槽具有限位面；当所述插头插入所述接头时，所述平切面插入所述插槽内，所述卡合面与所述限位面配合，所述平切面的起始端至所述卡合面的轴向长度大于所述插槽的起始端至所述限位面的轴向长度。
  2. 根据权利要求1所述的快插结构，其特征在于，还包括密封圈，所述接头上被所述卡爪环绕的位置开有密封圈槽，所述密封圈位于所述密封圈槽内。
  3. 根据权利要求2所述的快插结构，其特征在于，所述密封圈沿其周向间隔设置有多个凸点。
  4. 根据权利要求2所述的快插结构，其特征在于，所述密封圈槽至少为两个，其中一个密封圈槽与所述卡槽相对，另一个密封圈槽与所述卡槽偏离并且远离所述插槽。
  5. 根据权利要求1所述的快插结构，其特征在于，所述卡爪为椭圆环形，所述卡槽位于所述椭圆环形的短轴上，所述椭圆环形的长轴的两端为所述卡爪的啮合部，所述啮合部被捏合时所述卡槽在所述短轴方向上扩张。
  6. 一种发动机，其特征在于，所述发动机的管路采用如权利要求1至5中的任一项所述的快插结构进行连接。
PCT/CN2015/075706 2014-12-31 2015-04-01 快插结构及采用所述快插结构的发动机 WO2016106991A1 (zh)

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CN113309791A (zh) * 2021-05-25 2021-08-27 厦门永成信机械制品有限公司 一种转轴结构
CN113970026A (zh) * 2020-07-22 2022-01-25 讯凯国际股份有限公司 转接头组件
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CN109253332B (zh) * 2018-11-08 2020-07-21 湖南新业态智慧消防科技有限公司 新型消防水带管接头
CN109538865B (zh) * 2018-12-29 2020-11-24 佛山市顺德区美的洗涤电器制造有限公司 管道连接结构和洗碗机
CN113623095A (zh) * 2021-08-04 2021-11-09 安徽江淮汽车集团股份有限公司 一种空滤器出气管结构及汽车

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CN113309791B (zh) * 2021-05-25 2022-08-16 厦门永成信机械制品有限公司 一种转轴结构

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