Split type connector

Abstract

The embodiment of the invention provides a split type connector which comprises a pipe body, a first connecting end and a second connecting end. A first convex part is arranged on the inner side wall of the first connecting end; the connecting ring is connected with the first connecting end and the first pipeline in a sleeving manner; a second convex part is arranged on the inner side wall of the connecting ring; when the connecting ring is connected with the first connecting end in a sleeving manner, the second convex part extends into the pipe body, and a limiting space is formed between the second convex part and the first convex part; and the first sealing ring is arranged in the limiting space. Due to the fact that the first sealing ring is installed at the position where the limiting space is formed in advance, when the connecting ring is connected with the first connecting end in a sleeving mode, the position and the state of the first sealing ring cannot be changed; due to the fact that the first sealing ring is installed in the first connecting end in advance and limited in the limiting space, when the first pipeline stretches into the first connecting end, the position and the state of the first sealing ring can be kept stable, and then the sealing effect after the first pipeline and the pipe body are connected is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline connection, and in particular to a split joint. Background Art

[0002] Automobile systems usually include a large number of pipes, and during assembly, multiple pipes need to be connected to achieve corresponding functions such as air supply or liquid supply.

[0003] To ensure the normal and safe operation of the vehicle system, sealing measures must be taken between the interconnected first and second pipes. Typically, the connection is achieved by respectively sleeve-joining the first and second pipes with a connecting pipe. For example, when the connecting pipe sleeves the first pipe, a groove is typically formed on the outer wall of the first pipe. Before the first pipe is inserted into the connecting pipe, a sealing ring is first snapped into place and fixed in the groove. Then, when the connecting pipe sleeves the first pipe, the sealing ring moves with the first pipe to a designated position within the connecting pipe, thereby achieving a seal between the connecting pipe and the first pipe.

[0004] However, during the process of the first pipe extending into the connecting pipe, the sealing ring will move with the first pipe, and the sealing ring will squeeze the connecting pipe and the first pipe respectively, making the sealing ring prone to twisting and deformation under stress. In severe cases, the sealing ring may be disengaged from the groove and displaced, resulting in at least a portion of the sealing ring being unable to move to the designated position in the connecting pipe, affecting the sealing effect of the sealing ring. Summary of the Invention

[0005] An embodiment of the present application provides a split joint, which pre-installs a first sealing ring and limits the first sealing ring so that the position and state of the first sealing ring can remain stable during the process of the first pipe extending into the connecting ring, thereby improving the sealing effect after the first pipe is connected to the pipe body.

[0006] The embodiment of the present application provides a split joint, comprising:

[0007] The pipe body has at least one first connecting end sleeved with the first pipe; the inner side wall of the first connecting end is provided with a first protrusion, and the first protrusion extends along the circumference of the first connecting end;

[0008] a connecting ring, sleeve-connecting the first connecting end and the first pipe; a second protrusion is provided on the inner side wall of the connecting ring, and the second protrusion extends along the circumference of the connecting ring; when the connecting ring is sleeve-connected to the first connecting end, the second protrusion extends into the pipe body and forms a limited space between the second protrusion and the first protrusion;

[0009] The first sealing ring is placed in the limiting space; when the first connecting end is sleeved on the first pipe, the first sealing ring can seal the gap between the pipe body and the first pipe.

[0010] In a possible implementation manner, the first connecting end and the connecting ring are fixed via a clamping structure.

[0011] In a possible embodiment, the clamping structure includes a clamping groove and a clamping block; when the connecting ring is sleeve-connected to the first connecting end, the clamping block extends into the clamping groove and abuts against a side wall of the clamping groove;

[0012] The clamping groove is provided on the circumferential inner side wall of the connecting ring, and the clamping block is provided on the circumferential outer side wall of the first connecting end;

[0013] And / or, the clamping groove is provided on the circumferential outer side wall of the first connecting end, and the clamping block is provided on the circumferential inner side wall of the connecting ring.

[0014] In a possible embodiment, when the connecting ring is sleeve-connected to the first connecting end, at least one end of the clamping block has a guide surface in the axial direction of the tube body; the guide surface faces the gap between the connecting ring and the first connecting end.

[0015] In a possible embodiment, when the connecting ring is sleeve-connected to the first connecting end, a spring piece is provided at the clamping groove, and the spring piece has a first end connected to the clamping groove and a bent second end;

[0016] The second end of the elastic sheet is bent toward the gap between the connecting ring and the first connecting end.

[0017] In a possible implementation manner, a limit block and a limit groove are respectively provided at the connecting ring and the first connecting end;

[0018] When the connecting ring is sleeved on the first connecting end, the limiting block extends into the limiting groove and realizes circumferential limiting between the connecting ring and the first connecting end.

[0019] In a possible embodiment, the pipe body has at least one second connecting end for sleeve connection with a second pipe;

[0020] A fixing groove is provided on the outer side wall of the second connecting end. The fixing groove extends in a ring shape along the circumference of the second connecting end. A second sealing ring is sleeved in the fixing groove.

[0021] In a possible embodiment, at least one connecting groove is formed on the circumferential side wall of the connecting ring, and the connecting groove passes through the side wall of the connecting ring;

[0022] A clamping ring is sleeved on the circumferential outer side wall of the connecting ring, and a portion of the clamping ring extends into the interior of the connecting ring through the connecting groove.

[0023] In a possible embodiment, a baffle is provided on the circumferential outer side wall of the connecting ring. When the clamping ring is sleeved on the connecting ring, the baffle can cover the portion of the clamping ring outside the connecting groove in the axial direction and / or radial direction of the connecting ring.

[0024] In a possible embodiment, a side wall of the connecting ring is provided with a groove, and the groove extends along the axial direction of the connecting ring;

[0025] And / or, a side wall of the connecting ring is provided with a protrusion, and the protrusion extends along the axial direction of the connecting ring.

[0026] The split joint provided in the embodiment of the present application provides a first protrusion in the first connecting end of the pipe body, so that the first sealing ring can be pre-installed in the first connecting end and at a position close to the first protrusion, and then the connecting ring is sleeved on the outside of the first connecting end, so that the second protrusion can form a limiting space with the first protrusion and the inner side wall of the first connecting end, thereby limiting the first sealing ring in the limiting space; because the first sealing ring has been pre-installed at the position where the limiting space is formed before the first connecting end and the connecting ring are connected, the position and state of the first sealing ring will not change when the connecting ring is sleeved on the first connecting end; and because the first sealing ring has been pre-installed in the first connecting end and is limited in the limiting space, when the first pipe is extended into the first connecting end, the position and state of the first sealing ring can remain stable, thereby improving the sealing effect after the first pipe is connected to the pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0028] Figure 1 A schematic diagram of the split joint provided in some embodiments of the present application being connected to the first pipe;

[0029] Figure 2 A cross-sectional view of a split joint provided in some embodiments of the present application when connected to a first pipe;

[0030] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0031] Figure 4 A schematic diagram of a tube body provided in some embodiments of the present application;

[0032] Figure 5 A first schematic diagram of a connecting ring provided in some embodiments of the present application;

[0033] Figure 6 A second schematic diagram of a connecting ring provided in some embodiments of the present application;

[0034] Figure 7 A schematic diagram showing a portion of a clamping ring provided in some embodiments of the present application being inserted into a matching groove of a first pipe;

[0035] Figure 8 A schematic diagram of a first pipeline provided in some embodiments of the present application;

[0036] Figure 9 A schematic diagram of a retaining ring provided in some embodiments of the present application.

[0037] Reference numerals:

[0038] 100, first pipe; 110, matching groove; 120, protrusion; 200, tube body; 210, first connecting end; 211, first protrusion; 211a, first accommodating groove; 212, first clamping block; 212a, first guide surface; 213, limiting block; 220, second connecting end; 221, fixing groove; 221a, second sealing ring; 300, connecting ring; 310, second protrusion; 320, first clamping groove; 321, spring piece; 330, limiting groove; 340, connecting groove; 350, baffle; 360, groove; 400, limiting space; 410, first sealing ring; 500, clamping ring.

[0039] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0040] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0041] In an automobile system, a large number of pipes are usually included. During assembly, multiple pipes need to be connected, for example, two pipes or three pipes are connected, so as to realize the flow of gas or liquid between at least two pipes, thereby realizing the corresponding gas or liquid supply function.

[0042] To ensure the normal and safe operation of automotive systems, sealing measures must be implemented between at least two interconnected pipes. Generally, a connecting pipe is used to connect the at least two pipes, thereby achieving a connection between the at least two pipes. For example, when a connecting pipe is connected to one of the pipes, a groove is typically formed on the outer wall of the pipe. Before the pipe is inserted into the connecting pipe, a sealing ring is first clamped and fixed in the groove. Then, when the connecting pipe is connected to the pipe, the sealing ring moves with the pipe to a designated position within the connecting pipe, thus achieving a seal between the connecting pipe and the pipe.

[0043] However, in the process of the pipe extending into the connecting pipe, the sealing ring will move with the pipe, and the sealing ring will squeeze the connecting pipe and the pipe respectively, which makes the sealing ring prone to twisting and deformation under stress. In severe cases, it may cause the sealing ring to detach from the groove and shift, resulting in at least part of the sealing ring being unable to move to the designated position in the connecting pipe, thereby affecting the sealing effect of the sealing ring.

[0044] The split joint provided by the present application provides a first protrusion in the first connecting end of the pipe body, so that the first sealing ring can be pre-installed in the first connecting end and at a position close to the first protrusion, and then the connecting ring is sleeved on the outside of the first connecting end, so that the second protrusion can form a limiting space with the first protrusion and the inner side wall of the first connecting end, thereby limiting the first sealing ring in the limiting space; because the first sealing ring has been pre-installed at the position where the limiting space is formed before the first connecting end and the connecting ring are connected, the position and state of the first sealing ring will not change when the connecting ring is sleeved on the first connecting end; and because the first sealing ring has been pre-installed in the first connecting end and is limited in the limiting space, when the first pipe is extended into the first connecting end, the position and state of the first sealing ring can remain stable, thereby improving the sealing effect after the first pipe is connected to the pipe body.

[0045] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0046] like Figure 1-Figure 3As shown, an embodiment of the present application provides a split joint, which is used to connect two external pipes, such as a first pipe 100 and a second pipe (not shown in the figure), to achieve connectivity between the first pipe 100 and the second pipe, and meet the flow of gas and / or liquid between the first pipe 100 and the second pipe.

[0047] The following takes the connection between the first pipe 100 and the second pipe as an example to introduce the split joint of an embodiment of the present application. The split joint includes a pipe body 200, which has multiple connection ends for connecting external pipes, wherein the pipe body 200 has at least one first connection end 210, and the pipe body 200 can be sleeved with the first pipe 100 through the first connection end 210, thereby realizing communication between the pipe body 200 and the first pipe 100 to meet the flow of gas and / or liquid between the first pipe 100 and the pipe body 200; the pipe body 200 also has at least one second connection end 220, and the pipe body 200 can be sleeved with the second pipe through the second connection end 220, thereby realizing communication between the pipe body 200 and the second pipe to meet the flow of gas and / or liquid between the second pipe and the pipe body 200; through the connection between the pipe body 200 and the first pipe 100 and the second pipe, the flow of gas and / or liquid between the first pipe 100 and the second pipe can be further achieved.

[0048] Furthermore, in the embodiment of the present application, a first protrusion 211 is provided on the inner side wall of the first connection end 210 of the tube body 200. The first protrusion 211 protrudes from the inner side wall of the first connection end 210 and extends along the circumferential direction of the first connection end 210, so that the first protrusion 211 has an annular structure. The split joint of the embodiment of the present application also includes a connecting ring 300, which is sleeved on the outside of the first connection end 210. When the first connection end 210 is sleeved on the first pipe 100, the connecting ring 300 is also sleeved on the outside of the first pipe 100. A second protrusion 310 is provided on the inner side wall of the connecting ring 300. The second protrusion 310 protrudes from the inner side wall of the connecting ring 300 and extends along the circumferential direction of the connecting ring 300, so that the second protrusion 310 has an annular structure. During the process of socketing the connecting ring 300 with the first connecting end 210, the second protrusion 310 can extend into the first connecting end 210, so that the second protrusion 310 moves toward the direction of the first protrusion 211. When the connecting ring 300 and the first connecting end 210 are socketed and fixed, there is a certain distance between the first protrusion 211 and the second protrusion 310, so that the inner side walls of the first protrusion 211, the second protrusion 310 and the first connecting end 210 can cooperate to form a limiting space 400. In the embodiment of the present application, a first sealing ring 410 is placed in the limited space 400; when the first connection end 210 is sleeve-connected to the first pipe 100, the circumferential outer wall of the first sealing ring 410 can abut against the inner wall of the first connection end 210, and the circumferential inner wall of the first sealing ring 410 can abut against the circumferential outer wall of the first pipe 100, thereby sealing the gap between the first connection end 210 and the first pipe 100 and achieving a sealing effect.

[0049] It can be understood that, in the embodiment of the present application, when the tube body 200 and the first pipe 100 are connected, the following operations are specifically performed: first, the first sealing ring 410 is pre-placed in the tube body 200 through the first connecting end 210 of the tube body 200, so that the first sealing ring 410 is as close to the first convex portion 211 as possible. Preferably, the first sealing ring 410 is pre-placed at a position corresponding to the limit space 400 to be formed. Of course, the first sealing ring 410 can also be directly brought into contact with the first convex portion 211; then, the first connecting end 210 of the tube body 200 is pre-placed in the tube body 200, so that the first sealing ring 410 is as close to the first convex portion 211 as possible. A connecting end 210 is sleeved with the connecting ring 300, so that the second protrusion 310 extends into the first connecting end 210, and then the first protrusion 211, the second protrusion 310 and the inner side wall of the first connecting end 210 cooperate to form a limiting space 400, and at this time, the first sealing member is naturally in the limiting space 400; finally, the first pipe 100 is sleeved into the first connecting end 210, so that the first sealing member can be sleeved outside the first pipe 100 through extrusion deformation, thereby realizing the sealing between the pipe body 200 and the first pipe 100 by the first sealing member.

[0050] It is worth mentioning that the tube body 200 of the embodiment of the present application can pre-install the first sealing ring 410 in the first connecting end 210 before being sleeve-connected with the first pipe 100. The first protrusion 211 set in the first connecting end 210 can play a positioning effect for the pre-installation of the first sealing ring 410, so that the first sealing ring 410 can be pre-installed in advance to the position corresponding to the limit space 400. Since the first connecting end 210 of the tube body 200 is directly exposed to the outside during this process, the staff can directly observe the interior of the first connecting end 210, and then adjust the position, twisting deformation, etc. of the first sealing ring 410 through observation, so that the first sealing ring 410 maintains the best state after pre-installation. Furthermore, the connecting ring 300 of the embodiment of the present application can limit the first sealing ring 410 before the tube body 200 and the first connecting end 210 are sleeved; after the first sealing ring 410 is pre-installed into the first connecting end 210, the first protrusion 211, the second protrusion 310 and the inner side wall of the first connecting end 210 are sleeved on the connecting ring 300. In this state, along the axial direction of the first connecting end 210, the first protrusion 211 and the second protrusion 310 can be respectively located on both sides of the first sealing ring 410, so that the first sealing ring 410 can be limited in the axial direction of the first connecting end 210 to improve the position of the first sealing ring 410 and the stability of the twisted state. Preferably, when the connecting ring 300 is sleeved and fixed on the first connecting end 210, the first sealing ring 410 can respectively abut against the first protrusion 211 and the second protrusion 310. Furthermore, when the first pipe 100 is inserted into the first connecting end 210, the circumferential inner wall of the first sealing ring 410 will generate friction with the circumferential outer wall of the first pipe 100. During this process, the first protrusion 211 and the second protrusion 310 can abut and support the first sealing ring 410, thereby avoiding the position deviation of the first sealing ring 410 and avoiding the distortion caused by the position deviation.

[0051] Combine Figure 2 and Figure 3 As shown, in some embodiments, when the connecting ring 300, the first sealing ring 410 and the first connecting end 210 are in an assembled state, along the axial direction of the first connecting end 210, the first protrusion 211 is recessed inward toward the side wall of the first sealing ring 410 to form a first accommodating groove 211a, and the portion of the first sealing ring 410 in the limiting space 400 can extend into the first accommodating groove 211a.

[0052] It can be understood that when the first sealing ring 410 is pre-installed in the first connecting end 210, the first sealing ring 410 can be operated to contact the first protrusion 211, so that the second protrusion 310 will not push the first sealing ring 410 when following the movement of the connecting ring 300, thereby avoiding the first sealing ring 410 from shifting or twisting and deforming; since a first accommodating groove 211a is formed on the first protrusion 211, when the first sealing ring 410 contacts the first protrusion 211, part of the first sealing ring 410 will extend into the first accommodating groove 211a, so that the first accommodating groove 211a can limit the first sealing ring 410 in the radial direction of the first sealing ring 410, thereby avoiding the first sealing ring 410 from twisting and deforming in the radial direction, causing the first sealing ring 410 to separate from the inner wall of the first connecting end 210.

[0053] It is worth mentioning that since the first accommodating groove 211a can limit the first sealing ring 410 in the radial direction of the first sealing ring 410, the limiting space 400 can simultaneously limit the first sealing ring 410 in the axial direction and radial direction of the first sealing ring 410, which can improve the limiting effect. In particular, when the first pipe 100 is extended into the first connecting end 210, even if friction occurs between the outer wall of the first pipe 100 and the first sealing ring 410, it will not drive the first sealing ring 410 to displace or twist in the axial direction and / or radial direction, thereby improving the stability of the position and state of the first sealing ring 410.

[0054] Of course, in some cases, a corresponding second accommodating groove (not shown in the figure) can also be formed on the second protrusion 310 of the embodiment of the present application. When the second accommodating groove is formed on the second protrusion 310, the second accommodating groove faces the first sealing ring 410, so that part of the first sealing ring 410 can extend into the second accommodating groove. Furthermore, since the first sealing ring 410 partially extends into the first accommodating groove 211a and the second accommodating groove respectively, the cooperation between the first accommodating groove 211a and the second accommodating groove can improve the limiting effect of the first sealing ring 410.

[0055] In some embodiments, the first connecting end 210 of the tube body 200 and the connecting ring 300 are fixedly connected by a snap-fit structure. Specifically, a snap-fit structure is provided on the first connecting end 210 and / or the connecting ring 300. After the first sealing ring 410 is pre-installed into the first connecting end 210, the connecting ring 300 is sleeved on the outside of the first connecting end 210 so that the second protrusion 310 moves toward the direction of the first sealing ring 410. When the distance between the second protrusion 310 and the first protrusion 211 reaches a pre-designed size, the first connecting end 210 and the connecting ring 300 are fixedly connected by the snap-fit structure.

[0056] It can be understood that the pre-designed size between the first protrusion 211 and the second protrusion 310 can be larger than the size of the first sealing ring 410 in the axial direction, or equal to or smaller than the size of the first sealing ring 410 in the axial direction. As long as the limiting space 400 formed by the inner wall of the first protrusion 211, the second protrusion 310 and the first connecting end 210 can accommodate the first sealing ring 410, there is no special limitation on this, and it can be adjusted according to actual needs during use.

[0057] It is worth mentioning that by snap-connecting the connecting ring 300 to the first connecting end 210, the relative positions of the connecting ring 300 and the first connecting end 210 in the axial direction of the first connecting end 210 remain fixed, that is, the position of the second protrusion 310 in the axial direction of the first connecting end 210 remains fixed, so that the size of the limiting space 400 formed by the second protrusion 310 and the first protrusion 211 and the inner side wall of the first connecting end 210 remains stable, thereby providing a stable limiting effect on the first sealing ring 410.

[0058] Combine Figure 4-Figure 6 As shown, in some embodiments, the snap-fit structure includes a snap-fit groove and a snap-fit block, wherein the snap-fit groove and the snap-fit block are respectively provided on the first connecting end 210 and the connecting ring 300, so that the first connecting end 210 and the connecting ring 300 can be snap-fitted together through the snap-fit groove and the snap-fit block. Specifically, the snap-fit groove can be divided into a first snap-fit groove 320 provided on the connecting ring 300, and a second snap-fit groove (not shown in the figure) provided on the first connecting end 210; the snap-fit block can be divided into a first snap-fit block 212 provided on the first connecting end 210, and a second snap-fit block (not shown in the figure) provided on the connecting ring 300. When the connecting ring 300 is sleeved on the first connecting end 210, a snap-fitting effect is formed between the first snap-fit groove 320 and the first snap-fit block 212, and a snap-fitting effect is formed between the second snap-fit groove and the second snap-fit block.

[0059] The following description will be made by taking the example of providing a first snap-fit groove 320 on the connecting ring 300 and providing a first snap-fit block 212 on the first connecting end 210. In the embodiment of the present application, the first snap-fit groove 320 is provided on the circumferential side wall of the connecting ring 300, and the first snap-fit groove 320 passes through the circumferential side wall of the connecting ring 300, while the first snap-fit block 212 is provided on the circumferential outer side wall of the first connecting end 210. When the connecting ring 300 is sleeved on the outside of the first connecting end 210, the connecting ring 300 is first aligned with the first connecting end 210, and then external force is applied to squeeze the circumferential inner side wall of the connecting ring 300 and / or the circumferential outer side wall of the first connecting end 210 to a certain extent, so that the first connecting end 210 and the first snap-fit block 212 can extend into the connecting ring 300, and then external force is applied to make the first connecting end 210 and the connecting ring 300 relatively close to each other, so that the first protrusion 211 and the second protrusion 212 are relatively close to each other. The parts 310 approach each other until the first clamping block 212 enters the first clamping groove 320. In this state, the circumferential inner side wall of the deformed connecting ring 300 and / or the circumferential outer side wall of the first connecting end 210 are restored to their original state, that is, they are no longer deformed, and the side wall of the first clamping block 212 will abut against the side wall of the first clamping groove 320, so that the first clamping block 212 is clamped and fixed in the first clamping groove 320, thereby realizing the clamping fixation between the connecting ring 300 and the first connecting end 210.

[0060] It is worth mentioning that when the first clamping block 212 is clamped and fixed in the first clamping groove 320, the first clamping groove 320 can limit the first clamping block 212 in the axial direction and the circumferential direction of the first connecting end 210. Therefore, the connecting ring 300 and the first connecting end 210 remain relatively stationary in the axial direction and the circumferential direction, and the first protrusion 211 and the second protrusion 310 remain relatively stationary in the axial direction and the circumferential direction, thereby making the first protrusion 211 and the second protrusion 310 better able to limit and retain the first sealing ring 410.

[0061] Furthermore, in actual application, a plurality of first engaging grooves 320 can be provided on the connecting ring 300, and correspondingly, a plurality of first engaging blocks 212 can also be provided on the first connecting end 210, and the number of first engaging grooves 320 and first engaging blocks 212 remains consistent. For example, in the embodiment of the present application, the number of first engaging grooves 320 and first engaging blocks 212 are both four, and the four first engaging grooves 320 are evenly distributed along the circumferential direction of the connecting ring 300, and the four first engaging blocks 212 are evenly distributed along the circumferential direction of the first connecting end 210.

[0062] In some embodiments, when the connecting ring 300 is sleeved on the outside of the first connecting end 210, the first clamping block 212 has a first end and a second end along the axial direction of the first connecting end 210, wherein the first end of the first clamping block 212 is closer to the opening of the first connecting end 210 on the tube body 200 than the second end of the first clamping block 212. The first end and / or the second end of the first clamping block 212 are provided with a guide surface.

[0063] In the embodiment of the present application, when the connecting ring 300 is sleeved on the outside of the first connecting end 210, the first end of the first clamping block 212 is provided with a first guide surface 212a, such as Figure 2 and Figure 3 As shown, the first guide surface 212 a faces the gap between the connecting ring 300 and the first connecting end 210 . Furthermore, in the process of sleeve-fitting the connecting ring 300 onto the outside of the first connecting end 210, first align the connecting ring 300 with the first connecting end 210, and then operate the connecting ring 300 and the first connecting end 210 to approach each other until the first clamping block 212 contacts the connecting ring 300. In this state, the first clamping block 212 contacts the edge of the inner wall of the connecting ring 300 through the first guide surface 212a, and then applies pressure to the connecting ring 300 and the first connecting end 210, so that the first guide surface 212a is squeezed against the edge of the inner wall of the connecting ring 300. Since the first guide surface 212a can guide the movement of the connecting ring 300, the connecting ring 300 can be sleeved onto the outside of the first connecting end 210 and the first clamping block 212 along the first guide surface 212a through the deformation of the connecting ring 300 and / or the first connecting end 210, thereby realizing the connection between the connecting ring 300 and the first connecting end 210.

[0064] It can be understood that the radial dimension of the first connecting end 210 is smaller than the radial dimension inside the connecting ring 300, and a first clamping block 212 is set on the circumferential outer wall of the first connecting end 210, so that the radial dimension of the first connecting end 210 plus the dimension of the first clamping block 212 is larger than the radial dimension inside the connecting ring 300, and a first guide surface 212a is set at the first end of the first clamping block 212, so that when the connecting ring 300 is docked with the first connecting end 210, part of the first clamping block 212 can be extended into the connecting ring 300, and then a force is applied to the connecting ring 300 and the first connecting end 210, and the guiding effect of the first guide surface 212a can facilitate the first connecting end 210 and the first clamping block 212 to extend into the connecting ring 300, and then facilitate the first clamping block 212 to move into the first clamping groove 320, thereby realizing the clamping fixation between the connecting ring 300 and the first connecting end 210.

[0065] Furthermore, when the connecting ring 300 is sleeved onto the outside of the first connecting end 210, the second end of the first engaging block 212 may be provided with a second guide surface (not shown), with the second guide surface facing the gap between the connecting ring 300 and the first connecting end 210. It is understood that the second guide surface can serve as a guide when the first connecting end 210 exits the connecting ring 300. In particular, in some cases, when the first connecting end 210 and the connecting ring 300 are connected and do not need to be disassembled, the second end of the first engaging block 212 does not need to be provided with a second guide surface, thereby increasing the resistance to separation between the first connecting end 210 and the connecting ring 300 and improving the stability of the connection between the connecting ring 300 and the first connecting end 210.

[0066] Combine Figure 1-Figure 3 and Figure 5 As shown, in some embodiments, a spring clip 321 is provided at the first engaging groove 320 of the connecting ring 300. The first end of the spring clip 321 is fixedly connected within the first engaging groove 320, and the second end of the spring clip 321 is free. When the connecting ring 300 is sleeved and connected to the outside of the first connecting end 210, the second end of the spring clip 321 is bent and bends toward the gap between the connecting ring 300 and the first connecting end 210. Furthermore, the bending angle of the second end of the spring clip 321 is less than 90 degrees, and the second end of the spring clip 321 may be bent or curved in an arc-shaped transition.

[0067] It can be understood that when the connecting ring 300 and / or the first connecting end 210 are deformed, so that the first clamping block 212 follows the first connecting end 210 to extend into the connecting ring 300, the force is continued to be applied so that the connecting ring 300 and the first connecting end 210 are close to each other. During this process, the first clamping block 212 will contact the second end of the spring piece 321. Since the first clamping block 212 has a first guide surface 212a in the direction of the spring piece 321, and the second end of the spring piece 321 is bent toward the first clamping block 212, as the connecting ring 300 and the first connecting end 210 move, the first clamping block 212 can squeeze the second end of the spring piece 321 through the first guide surface 212a, so that the spring piece The second end of 321 moves toward the outer circumference of the connecting ring 300, so that the second end of the spring piece 321 avoids the movement of the first clamping block 212 until the first clamping block 212 is completely moved into the first clamping groove 320. At this time, the first clamping block 212 no longer squeezes the second end of the spring piece 321, so that the second end of the spring piece 321 moves toward the inner circumference of the connecting ring 300 until it returns to its initial state. At this time, the second end of the spring piece 321 is at the second end of the first clamping block 212, and the second end of the spring piece 321 can abut the second end of the first clamping block 212 to achieve the limitation of the first clamping block 212, thereby improving the stability of the connection between the connecting ring 300 and the first connecting end 210.

[0068] It is worth mentioning that, by disposing the spring piece 321 in the first engaging groove 320 , a feedback that the first connecting end 210 and the connecting ring 300 are about to be installed can be provided to the staff during the process of connecting the first connecting end 210 and the connecting ring 300 . When the locking cam 320 is in the unlocked position, the locking cam 320 is in the unlocked position, and the first and second locking cams 321 are in the unlocked position, so that the first and second locking cams 320 are unlocked.

[0069] In particular, during the process of connecting the first connecting end 210 and the connecting ring 300, when the first clamping block 212 does not contact the spring piece 321, the resistance of the first connecting end 210 further extending into the connecting ring 300 remains unchanged, and when the first clamping block 212 contacts the spring piece 321 through the first guide surface 212a, the resistance of the first connecting end 210 further extending into the connecting ring 300 will gradually increase to alert the staff.

[0070] Combine Figure 4-Figure 6 As shown, in some embodiments, a limiting block 213 is provided on the circumferential outer wall of the first connecting end 210, and a limiting groove 330 is opened on the circumferential inner wall of the connecting ring 300. When installing the connecting ring 300 and the first connecting end 210, the connecting ring 300 and the first connecting end 210 are first aligned so that the position of the limiting block 213 corresponds to the position of the limiting groove 330. In this state, the position of the first clamping block 212 corresponds to the position of the first clamping groove 320. Then, the first connecting end 210 is extended into the connecting ring 300, so that the limiting block 213 is also extended into the limiting groove 330. Through the mutual clamping of the limiting block 213 and the limiting groove 330, the connecting ring 300 and the first connecting end 210 can be limited in the circumferential direction to improve the stability between the connecting ring 300 and the first connecting end 210.

[0071] Furthermore, the limit block 213 extends in the axial direction of the first connecting end 210 in the shape of a long strip, and the limit groove 330 extends in the axial direction of the connecting ring 300 in the shape of a long strip, so that the cooperation between the limit block 213 and the limit groove 330 can guide the process of the first connecting end 210 extending into the connecting ring 300, so as to improve the stability of the connection between the connecting ring 300 and the first connecting end 210, so that the first clamping block 212 can keep moving toward the first clamping groove 320 to avoid offset.

[0072] It is understandable that the limiting block 213 may also be provided on the connecting ring 300 , and the limiting groove 330 may also be provided on the first connecting end 210 , and this is not particularly limited.

[0073] Combine Figure 1-Figure 2 and Figure 4As shown, in some embodiments, a fixing groove 221 is provided on the circumferential outer wall of the second connecting end 220 of the tube body 200. The fixing groove 221 extends in an annular shape along the circumferential direction of the second connecting end 220. A second sealing ring 221a is sleeved in the fixing groove 221. When the second connecting end 220 is sleeved with the second pipe, the second connecting end 220 is inserted into the second pipe so that the circumferential outer wall of the second sealing ring 221a abuts against the inner wall of the second pipe. At the same time, the circumferential inner wall of the second sealing ring 221a abuts against the fixing groove 221, thereby achieving a seal between the second connecting end 220 and the second pipe.

[0074] Combine Figure 1-Figure 2 、 Figure 5-Figure 6 and Figure 9 As shown, in some embodiments, at least one connecting groove 340 is defined on the circumferential sidewall of the connecting ring 300, and the connecting groove 340 penetrates the sidewall of the connecting ring 300, so that the connecting groove 340 can connect the interior and exterior of the connecting ring 300. A snap ring 500 is further disposed outside the connecting ring 300. The snap ring 500 is in an incomplete ring shape, that is, the snap ring 500 has two free ends. Specifically, the snap ring 500 can be sleeved on the outer sidewall of the connecting ring 300.

[0075] After the connecting ring 300 is sleeved and connected to the first connecting end 210, the first pipe 100 is inserted into the first connecting end 210, so that the first sealing ring 410 can seal the gap between the first pipe 100 and the first connecting end 210. At this time, the first pipe 100 is also in the connecting ring 300. Thereafter, the clamping ring 500 is sleeved on the outer wall of the connecting ring 300, so that part of the clamping ring 500 can extend into the connecting ring 300 through the connecting groove 340. Since the clamping ring 500 itself has a certain clamping force, the part of the clamping ring 500 extending into the connecting ring 300 through the connecting groove 340 can clamp the first pipe 100, thereby enabling the clamping ring 500 to limit the first pipe 100 in the axial direction of the connecting ring 300, thereby realizing the connection and installation between the first pipe 100 and the connecting ring 300, and thereby realizing the connection between the first pipe 100 and the first connecting end 210 through the connecting ring 300.

[0076] Further, combined with Figure 7-Figure 8As shown, the first pipe 100 of the embodiment of the present application is provided with a mating groove 110, which is provided on the circumferential outer wall of the first pipe 100 and is not connected to the interior of the first pipe 100. After the connecting ring 300 is sleeved and connected to the first connecting end 210, the first pipe 100 is inserted into the first connecting end 210. During this process, when the position of the mating groove 110 on the first pipe 100 corresponds to the position of the connecting groove 340, the clamping ring 500 is sleeved onto the connecting ring 300, so that a portion of the clamping ring 500 extends into the mating groove 110 through the connecting groove 340, thereby limiting the first pipe 100 in the axial direction of the connecting ring 300. At this time, the first sealing ring 410 seals the gap between the first pipe 100 and the first connecting end 210.

[0077] Furthermore, the mating groove 110 extends along the circumferential direction of the first pipe 100, but is not a complete ring. Therefore, when part of the clamping ring 500 extends into the mating groove 110, under the action of the clamping ring 500 and the mating groove 110, the first pipe 100 can be limited in the circumferential direction, thereby improving the stability of the connection between the connecting ring 300 and the first pipe 100.

[0078] Combine Figure 1 、 Figure 5 and Figure 6 As shown, in some embodiments, a baffle 350 is provided on the circumferential outer wall of the connecting ring 300. Specifically, the baffle 350 protrudes from the circumferential outer wall of the connecting ring 300. When the snap ring 500 is sleeved on the connecting ring 300, a portion of the snap ring 500 extends into the connecting ring 300 through the connecting groove 340, while another portion of the snap ring 500 protrudes from the circumferential outer wall of the connecting ring 300. In the axial direction of the connecting ring 300, the baffle 350 of the embodiment of the present application is provided on at least one side of the snap ring 500 that protrudes from the circumferential outer wall of the connecting ring 300, thereby enabling the baffle 350 to cover the snap ring 500 in the axial direction of the connecting ring 300.

[0079] Furthermore, by designing the shape of the baffle 350 , such as bending, the baffle 350 can cover the clamping ring 500 in the radial direction of the connecting ring 300 .

[0080] It can be understood that the baffle 350 covers the clamping ring 500, which can better improve the appearance of the split joint in the embodiment of the present application. At the same time, the baffle 350 can protect the clamping ring 500 to avoid contact with the external environment or misoperation by personnel, so as to improve the stability of the clamping ring 500 connecting the first pipe 100 and the connecting ring 300.

[0081] Combine Figure 1-Figure 2 and Figure 6-Figure 8As shown, in some embodiments, a protrusion 120 and a groove 360 are respectively provided on the connecting ring 300 and the first pipe 100. Specifically, the protrusion 120 can be provided on the connecting ring 300 and the groove 360 can be provided on the first pipe 100, or the protrusion 120 can be provided on the first pipe 100 and the groove 360 can be provided on the connecting ring 300, without particular limitation. For example, in an embodiment of the present application, the groove 360 is provided on the circumferential inner sidewall of the connecting ring 300, and the groove 360 extends in the axial direction of the connecting ring 300 in the shape of an elongated strip, and the protrusion 120 is provided on the circumferential outer sidewall of the first pipe 100, and the protrusion 120 extends in the axial direction of the first pipe 100 in the shape of an elongated strip. After the connecting ring 300 is sleeved and connected to the first connecting end 210, when the first pipe 100 is extended into the first connecting end 210, the protrusion 120 of the first pipe 100 can be extended into the groove 360 of the connecting ring 300, thereby realizing circumferential limitation between the first pipe 100 and the connecting ring 300, so as to improve the stability between the first pipe 100, the connecting ring 300 and the first connecting end 210. At the same time, the cooperation between the protrusion 120 and the groove 360 can provide guidance for the process of the first pipe 100 extending into the first connecting end 210.

[0082] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. A split joint, characterized in that: include, The pipe body (200) has at least one first connecting end (210) sleeved with the first pipe (100); the inner side wall of the first connecting end (210) is provided with a first convex portion (211), and the first convex portion (211) extends along the circumference of the first connecting end (210); A connecting ring (300) is sleeve-connected to the first connecting end (210) and the first pipe (100); a second convex portion (310) is provided on the inner side wall of the connecting ring (300), and the second convex portion (310) extends along the circumference of the connecting ring (300); when the connecting ring (300) is sleeve-connected to the first connecting end (210), the second convex portion (310) extends into the pipe body (200) and forms a limiting space (400) between the second convex portion (310) and the first convex portion (211); The first sealing ring (410) is placed in the limiting space (400); when the first connecting end (210) is sleeved on the first pipe (100), the first sealing ring (410) can seal the gap between the pipe body (200) and the first pipe (100).

2. The split joint according to claim 1, characterized in that: The first connecting end (210) and the connecting ring (300) are fixed via a clamping structure.

3. The split joint according to claim 2, characterized in that: The clamping structure comprises a clamping groove and a clamping block; when the connecting ring (300) is sleeve-connected to the first connecting end (210), the clamping block extends into the clamping groove and abuts against a side wall of the clamping groove; The clamping groove is provided on the circumferential inner side wall of the connecting ring (300), and the clamping block is provided on the circumferential outer side wall of the first connecting end (210); And / or, the clamping groove is provided on the circumferential outer side wall of the first connecting end (210), and the clamping block is provided on the circumferential inner side wall of the connecting ring (300).

4. The split joint according to claim 3, characterized in that: When the connecting ring (300) is sleeve-connected to the first connecting end (210), at least one end of the clamping block has a guide surface in the axial direction of the tube body (200); the guide surface faces the gap between the connecting ring (300) and the first connecting end (210).

5. The split joint according to claim 3, characterized in that: When the connecting ring (300) is sleeve-connected to the first connecting end (210), a spring piece (321) is provided at the clamping groove, and the spring piece (321) has a first end connected to the clamping groove and a bent second end; The second end of the elastic sheet (321) is bent toward the gap between the connecting ring (300) and the first connecting end (210).

6. The split joint according to any one of claims 1 to 5, characterized in that: The connecting ring (300) and the first connecting end (210) are respectively provided with a limiting block (213) and a limiting groove (330); When the connecting ring (300) is sleeved on the first connecting end (210), the limiting block (213) extends into the limiting groove (330) and realizes circumferential limiting between the connecting ring (300) and the first connecting end (210).

7. The split joint according to any one of claims 1 to 5, characterized in that: The pipe body (200) has at least one second connecting end (220) for sleeve connection with a second pipe; A fixing groove (221) is provided on the outer side wall of the second connecting end (220), the fixing groove (221) extending in a ring shape along the circumference of the second connecting end (220), and a second sealing ring (221a) is sleeved in the fixing groove (221).

8. The split joint according to any one of claims 1 to 5, characterized in that: At least one connecting groove (340) is formed on the circumferential side wall of the connecting ring (300), and the connecting groove (340) penetrates the side wall of the connecting ring (300); A snap ring (500) is sleeved on the circumferential outer side wall of the connecting ring (300), and a portion of the snap ring (500) extends into the interior of the connecting ring (300) through the connecting groove (340).

9. The split joint according to claim 8, characterized in that: A baffle (350) is provided on the circumferential outer side wall of the connecting ring (300); when the snap ring (500) is sleeved on the connecting ring (300), the baffle (350) can cover the portion of the snap ring (500) outside the connecting groove (340) in the axial direction and / or radial direction of the connecting ring (300).

10. The split joint according to any one of claims 1 to 5, characterized in that: A groove (360) is provided on the side wall of the connecting ring (300), and the groove (360) extends along the axial direction of the connecting ring (300); And / or, a side wall of the connecting ring (300) is provided with a protrusion (120), and the protrusion (120) extends along the axial direction of the connecting ring (300).

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