CN116608339A - A leak-proof clamping structure and sealing ring for clamping pipe fittings - Google Patents
A leak-proof clamping structure and sealing ring for clamping pipe fittings Download PDFInfo
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Abstract
本申请公开了一种防漏卡管件卡压结构及密封圈，涉及管道供水系统技术领域，其管件卡压结构包括内管、外管以及密封圈，外管套设于内管外周，外管内周壁设有环槽，外管对应环槽处设有环形鼓包，密封圈用于套设于内管外壁并位于环槽内，密封圈包括密封圈本体，密封圈本体用于贴合环槽相对的内壁并与环槽槽底之间形成环形导流腔，密封圈本体沿轴向的一端设有第一导槽，第一导槽用于连通对应侧内管和外管间隙与环形导流腔；密封圈本体沿轴向的另一端设有第二导槽，第二导槽用于连通对应侧内管和外管间隙与环形导流腔。当没有经过卡压时在测试中实现漏水功能，方便检测是否经过卡压，减少了覆膜工序，使得实际实施起来更加方便。
The application discloses a leak-proof clamping pipe fitting compression structure and sealing ring, which relates to the technical field of pipeline water supply systems. The pipe fitting compression structure includes an inner pipe, an outer pipe and a sealing ring. The surrounding wall is provided with a ring groove, and the outer tube is provided with an annular bulge corresponding to the ring groove. The seal ring is used to be sleeved on the outer wall of the inner tube and located in the ring groove. The seal ring includes a seal ring body, which is used to fit the ring groove opposite An annular guide cavity is formed between the inner wall of the ring groove and the bottom of the ring groove. One end of the seal ring body in the axial direction is provided with a first guide groove. The first guide groove is used to communicate with the gap between the inner tube and the outer tube on the corresponding side and the ring guide Cavity; the other end of the sealing ring body along the axial direction is provided with a second guide groove, and the second guide groove is used to communicate with the gap between the inner tube and the outer tube on the corresponding side and the annular guide cavity. When it is not pressed, the water leakage function is realized in the test, which is convenient to detect whether it has been pressed, reduces the film covering process, and makes the actual implementation more convenient.
Description
技术领域technical field
本申请涉及管道供水系统的领域，更具体地说，它涉及一种防漏卡管件卡压结构及密封圈。The present application relates to the field of pipeline water supply system, more specifically, it relates to a leak-proof clamping structure and sealing ring of clamping pipe fittings.
背景技术Background technique
民用管道供水系统中，目前紫铜卡压管件带来易安装，节约安装时间，安全，易维护的优点，已经呈现出普及之势。In the civil pipeline water supply system, the current copper compression fittings bring the advantages of easy installation, saving installation time, safety, and easy maintenance, and have shown a trend of popularity.
在安装施工过程中，由于卡压前后外观差异很小，其他紫铜卡压管件没有卡压时也可能会在测试时密封不漏水，但后期使用过程中会泄漏，造成重大经济损失。现有的防漏卡措施中，采用凹槽外侧鼓包面覆有色膜，以卡压后膜损坏来判定是否经过卡压。During the installation and construction process, due to the small difference in appearance before and after pressing, other copper pressing pipe fittings may be sealed and leak-free during the test when they are not pressed, but they will leak during later use, causing major economic losses. In the existing anti-leakage card measures, the outside of the groove is covered with a colored film, and the film is damaged after pressing to determine whether it has been pressed.
但是，采用覆有色膜的方案就需要多一道覆膜工序，使得实际实施起来较为繁琐，有待改进。However, adopting the solution covered with a colored film requires an additional film covering process, which makes the actual implementation more cumbersome and needs to be improved.
发明内容Contents of the invention
为了改善覆有色膜导致实施繁琐，本申请提供一种防漏卡管件卡压结构及密封圈。In order to improve the cumbersome implementation caused by the colored film, the present application provides a leak-proof clamping structure and sealing ring.
本申请提供的一种防漏卡管件卡压结构及密封圈，采用如下的技术方案：The present application provides a leak-proof clamping pipe fitting clamping structure and sealing ring, which adopts the following technical scheme:
一种防漏卡管件卡压结构的密封圈，管件卡压结构包括内管、外管以及密封圈，外管套设于内管外周，外管内周壁设有环槽，外管对应环槽处设有环形鼓包，密封圈用于套设于内管外壁并位于环槽内，所述密封圈包括密封圈本体，所述密封圈本体用于贴合所述环槽相对的内壁并与环槽槽底之间形成环形导流腔，所述密封圈本体沿轴向的一端设有第一导槽，所述第一导槽用于连通对应侧内管和外管间隙与所述环形导流腔；所述密封圈本体沿轴向的另一端设有第二导槽，所述第二导槽用于连通对应侧内管和外管间隙与环形导流腔。A sealing ring with a leak-proof clamping structure for pipe fittings. The pipe fitting compression structure includes an inner pipe, an outer pipe and a sealing ring. The outer pipe is sleeved on the outer periphery of the inner pipe. The inner peripheral wall of the outer pipe is provided with a ring groove, and the outer pipe corresponds to the ring groove. There is an annular bulge, the sealing ring is used to be sleeved on the outer wall of the inner pipe and located in the ring groove, the sealing ring includes a sealing ring body, and the sealing ring body is used to fit the inner wall opposite to the ring groove An annular guide cavity is formed between the groove bottoms, and one end of the sealing ring body in the axial direction is provided with a first guide groove, which is used to communicate with the gap between the inner tube and the outer tube on the corresponding side and the annular guide groove. cavity; the other end of the sealing ring body along the axial direction is provided with a second guide groove, and the second guide groove is used to communicate with the gap between the inner tube and the outer tube on the corresponding side and the annular guide cavity.
通过上述技术方案，在环形鼓包没有经过卡压时，基于第一导槽、第二导槽和环形导流腔使得密封圈轴向两端的间隙形成连通，故而在测试时实现漏水。当采用卡钳夹紧外管的环形鼓包使得压缩，环槽通过压缩紧贴密封圈保证密封效果，实现密封。设置第一导槽和第二导槽，密封圈可以一体成型，方便检测是否经过卡压，减少了覆膜工序，使得实际实施起来更加方便。Through the above technical solution, when the annular bulge is not crimped, the gaps between the axial ends of the sealing ring are connected based on the first guide groove, the second guide groove and the annular guide cavity, so that water leakage is realized during the test. When the annular bulge of the outer tube is clamped by the caliper to make it compressed, the ring groove is pressed against the sealing ring to ensure the sealing effect and realize the sealing. The first guide groove and the second guide groove are provided, and the sealing ring can be integrally formed, which is convenient for detecting whether it has been pressed, reduces the film covering process, and makes the actual implementation more convenient.
可选的，所述第一导槽和第二导槽沿轴向的投影不重叠。Optionally, projections along the axial direction of the first guide groove and the second guide groove do not overlap.
通过上述技术方案，环形鼓包被夹紧压缩后密封圈本体会形变，通过将第一导槽和第二导槽沿轴向的投影不重叠的设置，减少了形变后导致第一导槽和第一导槽导通的可能性，使得实际使用更加稳定。Through the above technical solution, the sealing ring body will be deformed after the annular bulge is clamped and compressed. By setting the projections of the first guide groove and the second guide groove in the axial direction without overlapping, the deformation caused by the first guide groove and the second guide groove is reduced. The possibility of conducting a guide groove makes the actual use more stable.
可选的，所述第一导槽绕轴线均匀分布有多个，所述第二导槽的数量与第一导槽的数量相同，各个所述第一导槽和与其对应相邻的第二导槽形成的圆心角均相等。Optionally, there are a plurality of the first guide grooves evenly distributed around the axis, the number of the second guide grooves is the same as that of the first guide grooves, each of the first guide grooves and its corresponding adjacent second guide grooves The central angles formed by the guide grooves are all equal.
通过上述技术方案，第一导槽和第二导槽绕密封圈本体轴线均匀分布，在未卡压时使得通液的效果更好，使得防漏卡检测更加精准，在环形鼓包被压缩后也可以形成密封，减少环形鼓包被夹紧压缩后漏液的情况。Through the above technical solution, the first guide groove and the second guide groove are evenly distributed around the axis of the sealing ring body, which makes the effect of liquid passage better when it is not pressed, and makes the detection of the leak-proof card more accurate. A seal can be formed to reduce the situation of liquid leakage after the annular bulge is clamped and compressed.
可选的，所述密封圈本体的截面呈椭圆状，且椭圆状的长轴方向平行于密封圈本体的轴线方向。Optionally, the cross section of the sealing ring body is elliptical, and the major axis direction of the ellipse is parallel to the axial direction of the sealing ring body.
通过上述技术方案，长轴方向平行于密封圈本体的轴线，使得密封圈沿轴向的跨度更大，此时当环形鼓包被夹紧压缩后环槽内壁与密封圈本体的贴合面更大，使得连接后的密封效果更好。Through the above technical solution, the long axis direction is parallel to the axis of the sealing ring body, so that the span of the sealing ring in the axial direction is larger. At this time, when the annular bulge is clamped and compressed, the bonding surface between the inner wall of the ring groove and the sealing ring body is larger. , so that the sealing effect after connection is better.
可选的，所述密封圈本体内周壁设有第一圆柱面，所述第一圆柱面用于贴合内管外壁。Optionally, the inner peripheral wall of the sealing ring body is provided with a first cylindrical surface, and the first cylindrical surface is used to fit the outer wall of the inner pipe.
通过上述技术方案，通过第一圆柱面贴合内管的外壁，使得密封圈本体与内管外周壁的贴合面更大，使得密封效果更好。Through the above technical solution, the first cylindrical surface fits the outer wall of the inner tube, so that the bonding surface between the sealing ring body and the outer peripheral wall of the inner tube is larger, so that the sealing effect is better.
可选的，所述密封圈本体的外周壁设有缺口形成第二圆柱面。Optionally, the outer peripheral wall of the sealing ring body is provided with a notch to form a second cylindrical surface.
通过上述技术方案，通过缺口形成第二圆柱面，使得环形导流腔的空间更大，进而使得导流效果更好，使得防漏卡检测更加精准。Through the above technical solution, the second cylindrical surface is formed through the notch, so that the space of the annular diversion cavity is larger, thereby making the diversion effect better, and making the detection of the leak-proof card more accurate.
可选的，所述第一导槽和所述第二导槽均为圆弧槽，所述圆弧槽的轴线均垂直于所述密封圈本体的轴线，所述圆弧槽绕其轴线的两端一一对应延伸至第一圆柱面和第二圆柱面。Optionally, both the first guide groove and the second guide groove are arc grooves, the axes of the arc grooves are both perpendicular to the axis of the sealing ring body, and the arc grooves around their axes The two ends extend to the first cylindrical surface and the second cylindrical surface correspondingly.
通过上述技术方案，通过圆弧槽的两端导通塔第一圆柱面和第二圆柱面，使得第一导槽和第二导槽的导液效果更加稳定，进而使得防漏卡检测更加精准。Through the above technical solution, the first cylindrical surface and the second cylindrical surface of the tower are connected through the two ends of the circular arc groove, so that the liquid guiding effect of the first guide groove and the second guide groove is more stable, and the leak-proof card detection is made more accurate. .
可选的，每个所述圆弧槽的槽深沿所述密封圈本体的径向呈从中间向两端逐渐变浅。Optionally, the groove depth of each arc groove gradually becomes shallower from the middle to both ends along the radial direction of the sealing ring body.
通过上述技术方案，逐渐变浅的过渡，密封圈的挤压形变更加有规则可寻，进而使得环形鼓包被夹紧压缩后密封效果更稳定。Through the above technical solution, the gradually shallower transition makes the extrusion deformation of the sealing ring more regular and predictable, thereby making the sealing effect of the annular bulge more stable after being clamped and compressed.
可选的，所述圆弧槽的槽深小于或等于所述密封圈本体沿轴向厚度的5%。Optionally, the groove depth of the arc groove is less than or equal to 5% of the axial thickness of the sealing ring body.
通过上述技术方案，圆弧槽过神容易影响密封圈本体的结构强度，使得整体使用更加稳定。Through the above technical solution, excessive arc grooves are likely to affect the structural strength of the sealing ring body, making the overall use more stable.
本申请还提供了一种防漏卡管件卡压结构，包括上述任一所述的一种防漏卡管件卡压结构的密封圈。The present application also provides a leak-proof clamping structure for clamping pipe fittings, including a sealing ring of any one of the above-mentioned clamping structures for leak-proof clamping pipe fittings.
综上所述，本申请包括以下至少一种有益技术效果：In summary, the present application includes at least one of the following beneficial technical effects:
(1)通过设置第一导槽和第二导槽，当没有经过卡压时在测试中实现漏水功能；当经过卡压将环形鼓包压缩后环槽通过压缩紧贴密封圈保证密封效果，实现密封；方便检测是否经过卡压，减少了覆膜工序，使得实际实施起来更加方便。(1) By setting the first guide groove and the second guide groove, the water leakage function can be realized in the test when there is no pressing; when the annular bulge is compressed by pressing, the ring groove can be compressed and pressed against the sealing ring to ensure the sealing effect, and realize Sealing; it is convenient to detect whether it has been pressed, which reduces the lamination process and makes the actual implementation more convenient.
(2)通过第一导槽和第二导槽绕密封圈本体轴线均匀分布，在未卡压时使得通液的效果更好，使得防漏卡检测更加精准，在环形鼓包被压缩后也可以形成密封，减少环形鼓包被夹紧压缩后漏液的情况；(2) The first guide groove and the second guide groove are evenly distributed around the axis of the sealing ring body, so that the effect of liquid passage is better when it is not pressed, making the detection of the leak-proof card more accurate, and it can also be used after the annular bulge is compressed Form a seal to reduce the leakage of the annular bulge after being clamped and compressed;
(3)通过第一圆柱面使得密封圈本体与内管的贴合度更好，通过第二圆柱面使得环形导流腔导流效果更好，使得防漏卡检测更加精准。(3) Through the first cylindrical surface, the sealing ring body and the inner tube fit better, and through the second cylindrical surface, the flow diversion effect of the annular diversion cavity is better, so that the detection of the leak-proof card is more accurate.
附图说明Description of drawings
图1为实施例的未经卡压状态的剖视示意图；Fig. 1 is a schematic cross-sectional view of an unpressed state of an embodiment;
图2为图1中A部放大示意图；Figure 2 is an enlarged schematic view of part A in Figure 1;
图3为实施例的密封圈结构示意图；Fig. 3 is the structural representation of the sealing ring of the embodiment;
图4为实施例的经过卡压状态的剖视示意图。FIG. 4 is a schematic cross-sectional view of the pressed state of the embodiment.
附图标记：1、内管；2、外管；3、密封圈本体；4、环槽；5、环形鼓包；6、第一圆柱面；7、第二圆柱面；8、圆弧槽；81、第一导槽；82、第二导槽；9、环形导流腔。Reference signs: 1. Inner tube; 2. Outer tube; 3. Seal ring body; 4. Ring groove; 5. Annular bulge; 6. First cylindrical surface; 7. Second cylindrical surface; 8. Arc groove; 81. The first guide groove; 82. The second guide groove; 9. The annular guide cavity.
具体实施方式Detailed ways
以下结合附图对本申请作进一步详细说明。The application will be described in further detail below in conjunction with the accompanying drawings.
本申请实施例公开一种防漏卡管件卡压结构，参见图1和图2，包括内管1、外管2以及密封圈。内管1呈圆管状，外管2为紫铜管或者不锈钢管，外管2套设于内管1外周并与内管1呈间隙配合。外管2内周壁设有环槽4，环槽4从槽口至槽底呈渐缩设置，环槽4的槽底的截面呈圆弧状，环槽4槽口处于外观内壁呈圆弧过渡，外管2对应环槽4处形成有环形鼓包5。密封圈套设于内管1外壁并位于环槽4内，密封圈是O型圈且为橡胶材质，密封圈包括密封圈本体3，密封圈本体3贴合环槽4沿密封圈轴向分布的相对内壁并与环槽4槽底之间形成环形导流腔9。The embodiment of the present application discloses a leak-proof clamping structure for clamping pipe fittings, as shown in FIG. 1 and FIG. 2 , which includes an inner tube 1 , an outer tube 2 and a sealing ring. The inner tube 1 is in the shape of a round tube, the outer tube 2 is a copper tube or a stainless steel tube, and the outer tube 2 is sheathed on the outer periphery of the inner tube 1 and fits with the inner tube 1 in a gap. The inner peripheral wall of the outer tube 2 is provided with an annular groove 4, and the annular groove 4 is tapered from the notch to the bottom of the groove. , the outer tube 2 is formed with an annular bulge 5 corresponding to the annular groove 4 . The sealing ring is sleeved on the outer wall of the inner tube 1 and is located in the ring groove 4. The sealing ring is an O-ring made of rubber material. The sealing ring includes a sealing ring body 3. The sealing ring body 3 fits the ring groove 4 and is distributed along the axial direction of the sealing ring. An annular guide cavity 9 is formed between the opposite inner wall and the bottom of the ring groove 4 .
参见图2和图3，密封圈本体3的截面呈椭圆状，且椭圆状的长轴方向平行于密封圈本体3的轴线方向。密封圈本体3内周壁形成有第一圆柱面6，第一圆柱面6的轴线与密封圈本体3的轴线重合，第一圆柱面6贴合内管1外壁。密封圈本体3的外周壁设有缺口形成第二圆柱面7，第二圆柱面7的轴线与密封圈本体3的轴线重合，通过缺口形成第二圆柱面7，使得环形导流腔9的空间更大，进而使得环形导流腔9的导流效果更好。Referring to FIG. 2 and FIG. 3 , the cross section of the sealing ring body 3 is elliptical, and the major axis of the ellipse is parallel to the axial direction of the sealing ring body 3 . The inner peripheral wall of the sealing ring body 3 is formed with a first cylindrical surface 6 , the axis of the first cylindrical surface 6 coincides with the axis of the sealing ring body 3 , and the first cylindrical surface 6 is attached to the outer wall of the inner tube 1 . The outer peripheral wall of the sealing ring body 3 is provided with a gap to form a second cylindrical surface 7, the axis of the second cylindrical surface 7 coincides with the axis of the sealing ring body 3, and the second cylindrical surface 7 is formed by the gap, so that the space of the annular guide cavity 9 Larger, which in turn makes the diversion effect of the annular diversion cavity 9 better.
参见图2和图3，密封圈本体3沿轴向的两端均设有圆弧槽8，圆弧槽8的轴线均垂直于密封圈本体3的轴线，圆弧槽8绕其轴线的两端一一对应延伸至第一圆柱面6和第二圆柱面7。每个圆弧槽8的槽深沿密封圈本体3的径向呈从中间向两端逐渐变浅，且圆弧槽8的槽深均小于第一圆柱面6和第二圆柱面7沿轴向的高度。每个圆弧槽8的最大槽深值小于或等于密封圈本体3沿轴向厚度的5%。本示例中圆弧槽8槽深最大值为0.2mm，第一圆柱面6和第二圆柱面7沿轴向的高度均为0.4mm，密封圈本体3沿轴向的厚度为4.3mm。Referring to Fig. 2 and Fig. 3, the sealing ring body 3 is provided with circular arc grooves 8 at both axial ends, the axes of the circular arc grooves 8 are perpendicular to the axis of the sealing ring body 3, and the two sides of the circular arc grooves 8 around the axis are The ends extend to the first cylindrical surface 6 and the second cylindrical surface 7 in one-to-one correspondence. The groove depth of each arc groove 8 gradually becomes shallower from the middle to both ends along the radial direction of the sealing ring body 3, and the groove depth of each arc groove 8 is smaller than that of the first cylindrical surface 6 and the second cylindrical surface 7 along the axis. to the height. The maximum groove depth of each arc groove 8 is less than or equal to 5% of the axial thickness of the sealing ring body 3 . In this example, the maximum depth of the arc groove 8 is 0.2 mm, the axial heights of the first cylindrical surface 6 and the second cylindrical surface 7 are both 0.4 mm, and the axial thickness of the sealing ring body 3 is 4.3 mm.
各个圆弧槽8中，位于密封圈本体3轴向一端的为第一导槽81，第一导槽81连通对应侧内管1和外管2间隙与环形导流腔9。位于密封圈本体3轴向另一端的为第一导槽81，第二导槽82连通对应侧内管1和外管2间隙与环形导流腔9。第一导槽81和第二导槽82沿密封圈本体3轴向的投影不重叠，第一导槽81绕轴线均匀分布有多个，第二导槽82的数量与第一导槽81的数量相同，各个第一导槽81和与其对应相邻的第二导槽82形成的圆心角均相等，使得第一导槽81和第二导槽82呈错位间隔并均匀分布。Among the circular arc grooves 8 , the first guide groove 81 is located at one axial end of the sealing ring body 3 , and the first guide groove 81 communicates with the gap between the inner tube 1 and the outer tube 2 on the corresponding side and the annular guide cavity 9 . Located at the other axial end of the seal ring body 3 is a first guide groove 81 , and a second guide groove 82 communicates with the gap between the inner tube 1 and the outer tube 2 on the corresponding side and the annular guide cavity 9 . The projections of the first guide groove 81 and the second guide groove 82 along the axial direction of the sealing ring body 3 do not overlap, and there are a plurality of first guide grooves 81 evenly distributed around the axis, and the number of the second guide grooves 82 is the same as that of the first guide grooves 81 The numbers are the same, and the central angles formed by each first guide groove 81 and its corresponding adjacent second guide groove 82 are equal, so that the first guide groove 81 and the second guide groove 82 are spaced apart and evenly distributed.
通过第一导槽81、第二导槽82和环形导流腔9，使得密封圈轴向两端的间隙形成连通，在环形鼓包5没有经过卡压时，在测试时实现漏水功能，方便检测是否经过卡压。当采用卡钳夹紧外管2的环形鼓包5使得压缩，此时环槽4通过压缩紧贴密封圈保证密封效果，实现密封。Through the first guide groove 81, the second guide groove 82 and the annular guide cavity 9, the gaps at both ends of the sealing ring in the axial direction are connected. Pressed. When the ring-shaped bulge 5 of the outer tube 2 is clamped by the caliper to make it compressed, the ring groove 4 is pressed against the sealing ring to ensure the sealing effect and realize the sealing.
本实施例的工作原理是：The working principle of this embodiment is:
参见图1和图4，采用上述防漏卡关键卡压结构时，在环形鼓包5没有经过卡压时，第一导槽81、第二导槽82和环形导流腔9使得密封圈轴向两端的间隙形成连通，故而在测试时实现漏水功能。当采用卡钳夹紧外管2的环形鼓包5使得压缩，环槽4通过压缩后环形导流腔9消失，环槽4槽底紧贴密封圈本体3保证密封效果，实现密封，此时测试时不漏水。故而方便检测是否经过卡压，使得实际安装中检测更加精准方便。Referring to Fig. 1 and Fig. 4, when adopting the above key crimping structure of the leak-proof card, when the annular bulge 5 is not crimped, the first guide groove 81, the second guide groove 82 and the annular guide cavity 9 make the sealing ring axially The gaps at both ends form a connection, so the water leakage function is realized during the test. When the annular bulge 5 of the outer tube 2 is clamped by the caliper to make the compression, the annular guide cavity 9 disappears after the annular groove 4 passes through the compression, and the bottom of the annular groove 4 is close to the sealing ring body 3 to ensure the sealing effect and realize the sealing. At this time, when testing Watertight. Therefore, it is convenient to detect whether it has been pressed, making the detection more accurate and convenient in actual installation.
以上均为本申请的较佳实施例，并非依此限制本申请的保护范围，故：凡依本申请的结构、形状、原理所做的等效变化，均应涵盖于本申请的保护范围之内。All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.
Claims (10)
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|---|---|
| CN116608339B (en) | 2025-09-26 |
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