CN220688353U - Connection assembly - Google Patents

Abstract

The utility model discloses a connecting assembly which can be used for communicating a first pipe body and a second pipe body. The connection assembly includes a first connector and a second connector. The first connector comprises a first plug-in connection part and a first butt joint pipe, wherein the first plug-in connection part is connected with the first butt joint pipe, and the first butt joint pipe is used for connecting the first pipe body and communicated with each other. The second joint comprises a second plug-in connection part and a second butt joint pipe, the second plug-in connection part is connected with the second butt joint pipe, and the second butt joint pipe is used for connecting the second pipe body and communicated with each other. The first plug-in connection part is plugged with the second plug-in connection part, so that the first butt joint pipe is in butt joint with the second butt joint pipe and is communicated with the second butt joint pipe, and the quick connection of the first pipe body and the second pipe body is realized. Meanwhile, the first plug-in connection part is plugged with the second plug-in connection part along the radial direction of the first butt joint pipe, so that the connection stability of the first pipe body and the second pipe body is effectively improved.

Description

Connection assembly

Technical Field

The utility model relates to the technical field of pipe joints, in particular to a connecting component.

Background

The existing pipeline connecting mode mostly adopts threaded connection and riveting connection, wherein the threaded connection mode only connects two parts, namely the two parts cannot move after connection, and the connecting mode is complex in operation and low in connecting efficiency. The parts connected in the riveting connection mode are movable, but the connection mode is generally irreversible, namely, the parts are not detached after riveting, and the connection mode needs other external auxiliary connection equipment, is difficult to operate and has low connection efficiency. Besides, the connection of the pipeline generally adopts a connection mode of combining a circular tube sleeve and a steel ball or a claw spring, but the connection mode has a complex structure and high manufacturing cost.

Disclosure of Invention

The utility model mainly aims to provide a connecting assembly which can realize quick connection of a first pipe body and a second pipe body and can provide higher connection stability.

In order to achieve the above object, the present utility model provides a connection assembly for connecting a first pipe body and a second pipe body, the connection assembly comprising:

the first connector comprises a first plug-in connection part and a first butt joint pipe, the first plug-in connection part is connected with the first butt joint pipe, and the first butt joint pipe is suitable for being connected with the first pipe body and communicated with the first pipe body; and

the second connector comprises a second plug-in connection part and a second butt joint pipe, the second plug-in connection part is connected with the second butt joint pipe, and the second butt joint pipe is suitable for being connected with the second pipe body and communicated with each other;

the first plug-in connection part is suitable for being plugged with the second plug-in connection part along the radial direction of the first plug-in connection pipe, so that one end of the first plug-in connection pipe is in butt joint with one end of the second plug-in connection pipe and communicated with one another.

In some embodiments, the first plug portion has a radially extending receiving cavity adapted to receive the second plug portion;

the first plug-in part is also provided with a plug-in port communicated with the accommodating cavity, and the plug-in port deviates from the axis of the first butt joint pipe;

the second plug-in part penetrates through the plug-in port and is plugged in the accommodating cavity, so that one end of the first plug-in pipe is in butt joint with one end of the second plug-in pipe.

In some embodiments, the first plug portion is connected to an end of the first butt joint pipe near the second joint along an axial direction of the first butt joint pipe, and the first butt joint pipe is communicated with the accommodating cavity;

the second plug-in part is connected to one end of the second butt joint pipe close to the first joint along the axial direction of the second butt joint pipe, and is provided with a through hole which is communicated with the second butt joint pipe;

one side of the accommodating cavity, which is close to the second plug-in part, is provided with an avoidance part, and the avoidance part is suitable for accommodating the second plug-in pipe, so that the second plug-in part penetrates through the plug-in port and is plugged in the accommodating cavity, and one end of the first plug-in pipe is in butt joint with one end of the second plug-in pipe and is communicated with one end of the second plug-in pipe.

In some embodiments, a sealing groove is arranged on one side of the second plug-in part, which is close to the first plug-in part, and the sealing groove is arranged around the periphery of the through hole;

the connection assembly also has a seal disposed around the perimeter of the through-hole, and the seal is receivable in the seal groove.

In some embodiments, the groove wall of the seal groove has a recess that is recessed in a direction away from the seal groove, and the recess extends with an extension direction of the seal groove;

the wall surface that sealing member and the cell wall that is equipped with the depressed part contacted has the bellying, and the bellying is protruding towards the direction that deviates from the sealing member, and the bellying along with the extending direction of sealing member extends, bellying interference fit in the depressed part.

In some embodiments, along the extending direction of the axis, the second plug portion has a first surface and a second surface that are disposed opposite to each other, where the first surface and the second surface together define an included angle α, and an open end of the included angle α faces the plug interface;

wherein, contained angle alpha and equivalent friction angle beta that the first face had satisfy: alpha < beta.

In some embodiments, the first face is perpendicular to the axis of the first nipple.

In some embodiments, the connecting assembly further has a buckling assembly, the buckling assembly includes a fixing member and a buckling tooth member, one side of the fixing member is connected with one side of the first plug-in portion, the buckling tooth member includes a connecting portion and a clamping portion, one end of the connecting portion is connected with one end of the fixing member away from the first plug-in portion, and the other end of the connecting portion is connected with the clamping portion;

the clamping claw part is buckled and pressed on the second plug-in connection part, so that the second plug-in connection part is fixedly plugged in the first plug-in connection part.

In some embodiments, the plugging action path of the first plugging portion plugged into the second plugging portion is a first direction, the direction of the first butt joint pipe pointing to the second butt joint pipe is a second direction, and the direction perpendicular to the first direction and the second direction is a third direction;

the connecting assembly is provided with two buckling position assemblies, and the two buckling position assemblies are respectively arranged at two ends of the first plug-in connection part along the third direction.

In some embodiments, a first limiting hole is formed in one side, close to the first plug-in portion, of the connecting portion, a second limiting hole is formed in one side, close to the buckling component, of the first plug-in portion, and the second limiting hole is coaxial with the first limiting hole;

the buckling component further comprises an elastic piece, one end, close to the buckling tooth piece, of the elastic piece is contained in the first limiting hole, and one end, close to the first plugging portion, of the elastic piece is contained in the second limiting hole.

Compared with the prior art, the utility model has the beneficial effects that:

in the technical scheme of the utility model, the connecting component is used for connecting the first pipe body and the second pipe body and comprises a first joint and a second joint. The first connector comprises a first plug-in connection part and a first butt joint pipe, wherein the first plug-in connection part is connected with the first butt joint pipe, and the first butt joint pipe is used for connecting the first pipe body and communicated with each other. The second connector comprises a second plug-in connection part and a second butt joint pipe, the second plug-in connection part is connected with the second butt joint pipe, and the second butt joint pipe is used for connecting the second pipe body and communicated with each other. The first plug-in connection part is plugged with the second plug-in connection part, so that the first butt joint pipe is in butt joint with the second butt joint pipe and is communicated with the second butt joint pipe, and the quick connection of the first pipe body and the second pipe body is realized. Meanwhile, the first plug-in connection part is plugged with the second plug-in connection part along the radial direction of the first butt joint pipe, so that the connection stability of the first pipe body and the second pipe body is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a first perspective view of a connection assembly plugging process according to an embodiment of the present utility model; the first plug-in connection part is arranged at one end of the first butt joint pipe, and the second plug-in connection part is arranged at one end of the second butt joint pipe;

FIG. 2 is a second perspective view of the plugging process of the connection assembly according to one embodiment of the present utility model;

FIG. 3 is a third perspective view of a connection assembly plugging process according to an embodiment of the present utility model;

FIG. 4 is a first view of the connection assembly according to one embodiment of the present utility model after plugging;

FIG. 5 is a second view of the connection assembly according to one embodiment of the present utility model after plugging; the first butt joint pipe is used for connecting the first pipe body, and the second butt joint pipe is used for connecting the second pipe body;

FIG. 6 is a third view of the connection assembly according to an embodiment of the present utility model after plugging;

FIG. 7 is a cross-sectional view of the connection assembly of FIG. 6 taken along the direction A-A; wherein the first surface and the second surface have an included angle alpha;

FIG. 8 is a cross-sectional view of the connection assembly of FIG. 6 taken along the direction B-B;

FIG. 9 is an enlarged schematic view of a portion D of the connection assembly of FIG. 8;

FIG. 10 is an enlarged schematic view of a portion C of FIG. 7 of a connection assembly according to an embodiment of the present utility model;

FIG. 11 is an enlarged schematic view of a portion C of FIG. 7 of a connection assembly according to another embodiment of the present utility model; the concave part is positioned on the radial wall surface of the sealing groove, which is close to the through hole;

FIG. 12 is an enlarged schematic view of a portion C of FIG. 7 of a connection assembly according to yet another embodiment of the present utility model; the concave part is positioned on the wall surface of one side of the sealing groove, which is away from the first plug-in part.

Reference numerals illustrate:

10-a connection assembly;

11-a first linker;

111-a first plug-in part; 1111-receiving chamber; 11111-avoidance; 1112-an interface; 1113-a second limiting aperture;

112-a first docking tube;

12-a second linker;

121-a second plug-in part; 1211-a through hole; 1212-seal groove; 12121-a depression; 1213-a first side; 1214-a second side;

122-a second docking tube;

13-a seal; 131-a boss;

14-buckling component;

141-a fixing member; 142-tooth fastener; 1421-a connection; 14211-first limiting aperture; 1422-detent portions; 143-elastic members;

20-a first tube body;

30-a second tube;

x-a first direction; y-a second direction; z-third direction. The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The existing pipeline connecting mode mostly adopts threaded connection and riveting connection, wherein the threaded connection mode only connects two pipe bodies, namely, the two pipe bodies cannot move after connection, in the connecting mode, other equipment is needed to be used for screwing threads, especially when the pipe body diameter is larger, the operation space occupied by the external equipment is larger, the pipe body connecting mode is complex in operation, and the connecting efficiency is low. The pipe body connected by the riveting connection mode is movable, but the connection mode is generally irreversible, namely, the pipe body is not detached after riveting, so that the maintenance and the reutilization of the pipe body are not facilitated, other external auxiliary connection equipment is needed in the connection mode, the connection operation of the pipe body in a narrow space is very difficult, and the connection efficiency is low.

In view of this, and referring to fig. 1-12, the present utility model provides a connection assembly 10, the connection assembly 10 being capable of being used to communicate a first tube 20 with a second tube 30. The connection assembly 10 includes a first joint 11 and a second joint 12, the first joint 11 has a first socket 111 and a first butt joint pipe 112, the first socket 111 is connected to the first butt joint pipe 112, and the first socket 111 may be connected to one end of the first butt joint pipe 112 or may be connected to any position on the circumferential side of the first butt joint pipe 112. One end of the first docking tube 112 is used to connect the first tube body 20 and the first docking tube 112 and the first tube body 20 communicate with each other. The second connector 12 has a second plugging portion 121 and a second butt joint pipe 122, the second plugging portion 121 is connected to the second butt joint pipe 122, and the setting position of the second plugging portion 121 on the second butt joint pipe 122 is similar to the setting position of the first plugging portion 111 on the first butt joint pipe 112, that is, the second plugging portion 121 may be connected to one end of the second butt joint pipe 122 or may be connected to any position on the peripheral side of the second butt joint pipe 122. One end of the second interfacing tube 122 is used to connect the second tube body 30 and the second interfacing tube 122 and the second tube body 30 communicate with each other.

Referring to fig. 1, the first socket 111 is capable of being socket-coupled with the second socket 121 in a radial direction of the first socket 112 or the second socket 122, so that one end of the first socket 112 can be docked with and communicate with one end of the second socket 122. In some embodiments, to facilitate plugging of the first plug portion 111 with the second plug portion 121, the second plug portion 121 may be disposed at the same location on the second docking tube 122 as the first plug portion 111 is disposed at the first docking tube 112.

In the present utility model, the first plug-in portion 111 and the second plug-in portion 121 are plugged along the radial direction of the first butt-joint pipe 112, so that the plug-in connection of the first plug-in portion 111 and the second plug-in portion 121 can be prevented from being separated due to the external force, and the butt joint failure of the first butt-joint pipe 112 and the second butt-joint pipe 122 is caused, thereby effectively improving the connection stability of the first butt-joint pipe 112 and the second butt-joint pipe 122. The externally applied force may be an impact force generated during the fluid flow process in the first docking tube 112 and the second docking tube 122, or may be a vibration force generated by the first tube body 20 and the second tube body 30 due to external environmental factors. These external forces may be conducted along the junction of the first body 20 and the first docking tube 112 to the first mating portion 111 and may also be conducted along the junction of the second body 30 and the second docking tube 122 to the second mating portion 121. Since these external forces are concentrated on the first plugging portion 111 and the second plugging portion 121, the direction of the force on the first plugging portion 111 may be opposite to the direction of the force on the second plugging portion 121, and when the direction of the force on the first plugging portion 111 or the second plugging portion 121 is opposite to the plugging direction of the second plugging portion 121 onto the first plugging portion 111, the second plugging portion 121 may be separated from the first plugging portion 111, thereby resulting in failure of the connection between the first docking tube 112 and the second docking tube 122. The insertion operation of the first insertion portion 111 and the second insertion portion 121 is provided along the radial direction of the first butt joint pipe 112, so that the occurrence of the above-described phenomenon can be effectively avoided.

In some embodiments, referring to fig. 2, along the radial direction of the first docking tube 112, the first docking tube 111 has a receiving cavity 1111 extending along the radial direction of the first docking tube 112, and the receiving cavity 1111 is capable of receiving and fixing the second docking portion 121 when the second docking portion 121 is docked to the first docking portion 111. The first plugging portion 111 further has a plugging port 1112, the plugging port 1112 is communicated with the accommodating cavity 1111, and the second plugging portion 121 can be plugged into the accommodating cavity 1111 through the plugging port 1112, so that one end of the second plugging tube 122 connected to the second plugging portion 121 is in butt joint with one end of the first plugging tube 112 connected to the first plugging portion 111, and the first plugging tube 112 is communicated with the second plugging tube 122, and further, the first tube 20 connected to the other end of the first plugging tube 112 is communicated with the second tube 30 connected to the other end of the second plugging tube 122. Wherein the socket 1112 is located at a side of the first socket 111 facing away from the axis of the first docking tube 112. In other embodiments, the mating interface 1112 may also be located on a side of the first mating portion 111 that is proximate to the axis of the first mating tube 112.

In some embodiments, referring to fig. 2, along the axial extension of the first nipple 112, the first socket 111 is connected to an end of the first nipple 112 facing away from the first tube body 20, the first socket 111 has a receiving cavity 1111 extending along the radial direction of the first nipple 112, and the first nipple 112 communicates with the receiving cavity 1111. Similarly, along the axial extension direction of the second butt joint pipe 122, the second plug-in portion 121 is connected to an end of the second butt joint pipe 122 facing away from the second pipe body 30, and a side of the second plug-in portion 121 facing the first joint 11 has a through hole 1211, and the through hole 1211 communicates with the second butt joint pipe 122. Specifically, when the second insertion portion 121 is inserted into the accommodation chamber 1111, the through hole 1211 is accommodated in the accommodation chamber 1111 along with the second insertion portion 121, so that the through hole 1211 and the accommodation chamber 1111 are also in a state of communication with each other. In addition, since the receiving chamber 1111 communicates with the first docking tube 112 and the through hole 1211 communicates with the second docking tube 122, the first docking tube 112 and the second docking tube 122 are also in a communicating state. The shape of the through hole 1211 may be a regular circle, an ellipse, a rectangle, or the like, but may be other irregular shape. Preferably, the through hole 1211 has the same shape as the first docking tube 112 in the axial direction thereof.

In some embodiments, referring to fig. 2, a side of the accommodating cavity 1111, which is close to the second plugging portion 121, has an avoiding portion 11111, and during the plugging process of the second plugging portion 121 in the accommodating cavity 1111, the avoiding portion 11111 can reserve a plugging space for the second docking tube 122 connected to the second plugging portion 121 and facing away from the first connector 11, so that the second plugging portion 121 is plugged in the accommodating cavity 1111.

In some embodiments, referring to fig. 1, the second socket 121 is provided with a sealing groove 1212 at a side near the first joint 11, the sealing groove 1212 being disposed around a circumferential side of the through hole 1211. In other embodiments, a sealing groove 1212 may also be provided on a side of the receiving cavity 1111 proximate to the first nipple 112, the sealing groove 1212 being disposed about the axis of the first nipple 112 and the minimum diameter of the sealing groove 1212 being greater than the diameter of the inner wall of the first nipple 112. For convenience of description, taking the shape of the through hole 1211 as a circle as an example, the edge of the seal groove 1212 and the edge of the through hole 1211 are concentric circles, and the minimum diameter of the edge of the seal groove 1212 is larger than the maximum diameter of the edge of the through hole 1211. The seal groove 1212 may have a rectangular cross-sectional shape, a circular cross-sectional shape, a boss shape, or the like along the radial direction of the through hole 1211. The connection assembly 10 also has a seal 13, the seal 13 being receivable within the seal slot 1212. Similarly, the seal 13 is disposed around the through hole 1211, and the shape of the seal 13 may be the same as the seal groove 1212 along the axial direction of the through hole 1211 so that the seal groove 1212 can accommodate the seal 13. The cross-sectional shape of the seal member 13 may be rectangular, circular, boss-shaped, or the like along the radial direction of the through hole 1211. Seal 13 is interference fit with seal groove 1212 to enable seal 13 to be tightly coupled with seal groove 1212, ensuring the sealing performance of connection assembly 10. The sealing member 13 can seal the communication part between the through hole 1211 and the accommodating cavity 1111, so that fluid in the first pipe body 20 and the second pipe body 30 is prevented from leaking at the connection part between the first plug-in part 111 and the second plug-in part 121, and the connection stability of the connection assembly 10 is improved.

In some embodiments, the groove wall of the sealing groove 1212 is provided with a recess 12121, which may be a wall surface perpendicular to the axis of the second docking tube 122, a wall surface of the sealing groove 1212 near the through hole 1211, or a wall surface of the sealing groove 1212 facing away from the through hole 1211. The recess 12121 is recessed in a direction away from the seal groove 1212, and the recess 12121 extends along with the extending direction of the seal groove 1212. Correspondingly, the wall surface of the sealing element 13, which is in contact with the groove wall provided with the concave portion 12121, is provided with a convex portion 131, the convex portion 131 protrudes towards the direction away from the sealing element 13, the convex portion 131 extends along with the extending direction of the sealing element 13, and the convex portion 131 is in interference fit in the concave portion 12121, so that the connection firmness of the sealing element 13 and the sealing groove 1212 is improved. The provision of the recess 12121 and the protrusion 131 can prevent the seal 13 from being separated from the seal groove 1212 due to friction force generated when the second insertion portion 121 is inserted into the receiving chamber 1111. The provision of the recess 12121 and the boss 131 improves the sealing performance of the connection assembly 10.

In one embodiment, referring to fig. 12, for convenience of description, the first and second recesses 12121 and 12121 are hereinafter described to distinguish the recesses 12121 provided at different positions of the sealing groove 1212. Similarly, the first boss 131 and the second boss 131 are described below to distinguish the bosses 131 provided at different positions of the seal 13. The wall surface of the sealing groove 1212 facing away from the first plug portion 111 has a first recess 12121, the first recess 12121 is recessed in a direction facing away from the first plug portion 111, and the first recess 12121 is disposed at intervals along an extending direction of the sealing groove 1212. Correspondingly, the sealing member 13 has first protrusions 131 on a wall surface on a side close to the second insertion portion 121, the first protrusions 131 are protruded toward a direction close to the second insertion portion 121, the first protrusions 131 are disposed at intervals along an extending direction of the sealing member 13, and the first protrusions 131 are in one-to-one correspondence with the first concave portions 12121, that is, the first protrusions 131 can be accommodated in the first concave portions 12121 opposite thereto. During the process of inserting the second inserting portion 121 into the accommodating cavity 1111, a wall surface of the accommodating cavity 1111 facing the side of the seal member 13 may generate a friction force on the seal member 13, so as to urge the seal member 13 to be separated from the sealing groove 1212. The connection between the first concave portion 12121 and the first convex portion 131 greatly increases the contact area between the sealing element 13 and the sealing groove 1212, so that the connection stability between the sealing element 13 and the sealing groove 1212 is higher, and the sealing element 13 can be effectively prevented from being separated from the sealing groove 1212.

In one embodiment, referring to fig. 11, seal groove 1212 also has a second recess 12121. The second recess 12121 is located on a radial wall surface of the seal groove 1212 near the through hole 1211, and correspondingly, a radial wall surface of the seal 13 near the through hole 1211 is provided with the second protrusion 131. In another embodiment, the second recess 12121 is located on a radial wall surface of the seal groove 1212 remote from the through hole 1211, and correspondingly, the second protrusion 131 is provided on a radial wall surface of the seal 13 remote from the through hole 1211. In yet another embodiment, the second concave portion 12121 is formed on the radial wall surface of the seal groove 1212 close to the through hole 1211 and the radial wall surface of the seal groove 1212 far from the through hole 1211, and correspondingly, the second convex portion 131 is formed on the radial wall surface of the seal 13 close to the through hole 1211 and the radial wall surface of the seal 13 far from the through hole 1211. The second recess 12121 is recessed toward a direction away from the seal groove 1212, and the second recess 12121 extends along an extending direction of the seal groove 1212. The second boss 131 is projected in a direction away from the seal member 13, and the second boss 131 extends along an extending direction of the seal member 13. The second boss 131 can be received within the second recess 12121. The contact area between the sealing element 13 and the sealing groove 1212 can be increased by the arrangement of the second concave portion 12121 at the second convex portion 131, so that the connection stability of the sealing element 13 and the sealing groove 1212 is effectively improved, and the sealing element 13 is prevented from being separated from the sealing groove 1212 in the process of inserting the second inserting portion 121 into the accommodating cavity 1111, thereby affecting the sealing performance of the connecting assembly 10.

In another embodiment, a wall surface of the sealing groove 1212 facing away from the first plug portion 111 has a first recess 12121, and a wall surface of the sealing groove 1212 facing radially toward the through hole 1211 also has a second recess 12121, wherein the first recess 12121 and the second recess 12121 are recessed in a direction facing away from the sealing groove 1212. Correspondingly, the sealing element 13 has a first bulge 131 on the wall surface on the side close to the second plug-in part 121, while the sealing element 13 is provided with a second bulge 131 on the radial wall surface close to the through hole 1211, and the first bulge 131 and the second bulge 131 bulge in the direction away from the sealing element 13.

Similarly, in another embodiment, a wall surface of the sealing groove 1212 facing away from the first plug portion 111 has a first recess 12121, and a wall surface of the sealing groove 1212 facing away from the through hole 1211 in a radial direction also has a second recess 12121, and the first recess 12121 and the second recess 12121 are recessed in a direction facing away from the sealing groove 1212. The sealing member 13 has a first protrusion 131 on a wall surface on a side close to the second insertion portion 121, while the sealing member 13 is provided with a second protrusion 131 on a wall surface in a radial direction away from the through hole 1211, the first protrusion 131 and the second protrusion 131 protruding in a direction away from the sealing member 13.

In a further embodiment, the wall of the sealing groove 1212 facing away from the first plug portion 111 has a first recess 12121, while the radial wall of the sealing groove 1212 facing away from the through hole 1211 and the radial wall of the sealing groove 1212 facing away from the through hole 1211 have a second recess 12121, the first recess 12121 and the second recess 12121 being recessed in a direction facing away from the sealing groove 1212. Correspondingly, the sealing element 13 has a first projection 131 on the wall surface on the side close to the second plug-in portion 121, while the radial wall surface of the sealing element 13 close to the through hole 1211 and the radial wall surface of the sealing element 13 remote from the through hole 1211 are simultaneously provided with a second projection 131, and the first projection 131 and the second projection 131 project in a direction away from the sealing element 13. The first protruding portion 131 can be accommodated in the first recessed portion 12121, and the second protruding portion 131 can be accommodated in the second recessed portion 12121. The seal groove 1212 is simultaneously provided with the first concave portion 12121 and the second concave portion 12121, and the seal piece 13 is simultaneously provided with the first convex portion 131 and the second convex portion 131, so that the contact area of the seal piece 13 in the seal groove 1212 can be greatly increased, the connection stability of the seal piece 13 and the seal groove 1212 is effectively improved, and the seal piece 13 is prevented from being separated from the seal groove 1212 in the process of inserting the second inserting portion 121 into the accommodating cavity 1111, so that the sealing performance of the connection assembly 10 is affected.

In some embodiments, referring to fig. 7, along the axis extending direction of the second docking tube 122, the second plugging portion 121 has a first surface 1213 and a second surface 1214 disposed opposite to the first surface 1213, the first surface 1213 and the second surface 1214 are not parallel, and an included angle α is formed therebetween, and an open end of the included angle α faces the plugging port 1112. The included angle α is smaller than the equivalent friction angle β of the first surface 1213, so that the second plugging portion 121 can be smoothly plugged into the accommodating cavity 1111, and the connection between the second plugging portion 121 and the first plugging portion 111 can be more stable. Specifically, along the direction of the plugging path in which the second plugging portion 121 is plugged into the first plugging portion 111, the distance between the first surface 1213 and the second surface 1214 becomes gradually smaller. In other embodiments, the first mating portion 111 has a receiving cavity 1111 with an included angle α between two walls contacting the first surface 1213 and the second surface 1214, and similarly, the distance between the receiving cavity 1111 and the two walls contacting the first surface 1213 and the second surface 1214 gradually decreases along the direction of the mating path of the second mating portion 121 to the first mating portion 111.

In other embodiments, along the extending direction of the axis of the second docking tube 122, the second plugging portion 121 has a first surface 1213 and a second surface 1214 disposed opposite to the first surface 1213, wherein the first surface 1213 is perpendicular to the axis of the second docking tube 122, the second surface 1214 is inclined with respect to the first surface 1213, that is, an included angle α is formed between the second surface 1214 and the first surface 1213, and the distance between the first surface 1213 and the second surface 1214 is gradually reduced along the plugging path of the second plugging portion 121 to the first plugging portion 111. Correspondingly, the wall surface of the receiving chamber 1111 in contact with the first surface 1213 may also be perpendicular to the axis of the second docking tube 122. In this embodiment, the machining of the seal slot 1212 is easier and simpler because the first face 1213 is perpendicular to the axis of the second interface tube 122.

Referring to fig. 3 and 4, in some embodiments, the connection assembly 10 further has a latch assembly 14, and the latch assembly 14 includes a fixing member 141 and a latch member 142, where the fixing member 141 and the latch member 142 may be an integrally formed structure. The fixing member 141 is connected to one side of the first socket 111 at a side close to the first socket 111. The tooth fastening member 142 has a connecting portion 1421 and a claw portion 1422, where the connecting portion 1421 and the claw portion 1422 may be an integrally formed structure, one end of the connecting portion 1421, which is close to the first inserting portion 111, is connected to one end of the fixing member 141, which is away from the first inserting portion 111, and one end of the connecting portion 1421, which is away from the first inserting portion 111, is connected to the claw portion 1422. After the second plugging portion 121 is plugged into the accommodating cavity 1111, the claw portion 1422 can be buckled on the surface of the second plugging portion 121. The buckling component 14 can play a role in fixing the second plug-in part 121 inserted into the accommodating cavity 1111, prevent the second plug-in part 121 from being separated from the accommodating cavity 1111, and improve the connection stability of the connection component 10.

In some embodiments, the button assembly 14 is disposed on a circumferential side of the socket 1112. Specifically, in one embodiment, one or more latch assemblies 14 are disposed on a side of the plug 1112 near the first docking tube 112, and the number of the latch assemblies 14 is determined according to the practical application. The latch assembly 14 may be disposed at any position on a side of the socket 1112 adjacent to the first docking tube 112, in the middle of the side, or at both ends of the side. In another embodiment, one or more latch assemblies 14 are disposed on a side of the plug 1112 facing away from the first docking tube 112, and the specific number of the latch assemblies 14 is determined according to the practical application. In this embodiment, the side of the socket 1112 facing away from the first docking tube 112 generally has a relief portion 11111, and the relief portion 11111 communicates with the socket 1112, so in this embodiment, the latch assembly 14 may be preferably disposed at two ends of the socket 1112 at the relief portion 11111. In yet another embodiment, if the plugging action path of the first plugging portion 111 plugged into the second plugging portion 121 is taken as the first direction X, the direction of the first plugging tube 112 pointing to the second plugging tube 122 is taken as the second direction Y, and the direction perpendicular to the first direction X and the second direction Y is taken as the third direction Z. The latch assembly 14 is disposed on opposite sides of the socket 1112 in the third direction Z.

In other embodiments, the latch assembly 14 is disposed circumferentially about the relief 11111. Specifically, the claw portion 1422 extends toward the receiving chamber 1111, and the claw portion 1422 is at least partially received within the receiving chamber 1111. The second plugging portion 121 has a groove on a side near the latch assembly 14, and the groove is located at a projection position of the claw portion 1422 on the second plugging portion 121. When the second plugging portion 121 is plugged into the accommodating cavity 1111, the groove can just accommodate the portion of the claw portion 1422 located in the accommodating cavity 1111, so as to fix the second plugging portion 121 and prevent the second plugging portion 121 from being separated from the accommodating cavity 1111.

In still other embodiments, referring to fig. 4, the latch assembly 14 is disposed within the receiving chamber 1111 on a side thereof facing away from the first docking tube 112, and preferably the latch assembly 14 is disposed within the receiving chamber 1111 at an end thereof adjacent to the mating port 1112. In this embodiment, the latch assembly 14 is a tooth-shaped protrusion on an inner wall of the accommodating cavity 1111, and a groove is disposed on a side of the second plugging portion 121 near the latch assembly 14, where the groove is located at a projection position of the claw portion 1422 on the second plugging portion 121. When the second plugging portion 121 is plugged into the accommodating cavity 1111, the groove can just accommodate and define the tooth-like protrusion buckling component 14, so as to fix the second plugging portion 121 and prevent the second plugging portion 121 from being separated from the accommodating cavity 1111.

Referring to fig. 3, 8 and 9, in some embodiments, the latch assembly 14 further has a resilient member 143, the resilient member 143 being located between the latch member 142 and the first plug portion 111. Along the direction that the tooth 142 points to the first plugging portion 111, one side of the elastic member 143 close to the first plugging portion 111 is connected with one side of the first plugging portion 111 close to the buckling component 14, one side of the elastic member 143 close to the tooth 142 is connected with one side of the connecting portion 1421 close to the first plugging portion 111, and the connection position of the elastic member 143 and the connecting portion 1421 is far away from the connection position of the fixing member 141 and the connecting portion 1421, in other words, the connection position of the fixing member 141 and the connecting portion 1421 is located between the connection position of the elastic member 143 and the connecting portion 1421 and the connection position of the claw portion 1422 and the connecting portion 1421.

In some embodiments, the attachment portion 1421 is rotatable about its attachment to the anchor 141. Before the second inserting portion 121 is inserted into the accommodating cavity 1111, a pressure is applied to the connection portion 1421 at the connection portion with the elastic member 143, so that the elastic member 143 is changed from an initial state to a compressed state, and the tooth-fastening member 142 rotates around the connection portion 1421 and the fixing member 141, and further the claw portion 1422 is far away from the second inserting portion 121, so that the second inserting portion 121 is inserted into the accommodating cavity 1111. After the second plugging portion 121 is plugged into the accommodating cavity 1111, the pressure applied to the connecting portion 1421 is removed, and the claw portion 1422 is pressed against the surface of the second plugging portion 121. At this time, the elastic force of the elastic member 143 urges itself to return to the original state, but since the claw portion 1422 is already buckled to the second socket portion 121, the second socket portion 121 applies a force opposite to the direction of the elastic force to the claw portion 1422, preventing the elastic member 143 from returning to the original state, so that the buckling component 14 can play a role in fixing the second socket portion 121.

In some embodiments, the elastic member 143 may be a spring structure, rubber with elasticity, a pneumatic cylinder, a hydraulic cylinder, or other structure or material capable of storing energy. For convenience of description, the elastic member 143 is hereinafter exemplified as a spring structure.

In some embodiments, referring to fig. 9, a first limiting hole 14211 is formed on a side of the connection portion 1421 near the first plug portion 111, a second limiting hole 1113 is formed on a side of the first plug portion 111 near the latch assembly 14, and the second limiting hole 1113 is coaxial with the first limiting hole 14211. Along the direction that the tooth-fastening member 142 points to the first inserting portion 111, one end of the elastic member 143, which is close to the tooth-fastening member 142, is accommodated in the first limiting hole 14211, and one end of the elastic member 143, which is close to the first inserting portion 111, is accommodated in the second limiting hole 1113. The first limiting hole 14211 and the second limiting hole 1113 can perform a guiding and limiting function on the elastic member 143, so as to prevent the elastic member 143 from being separated from the first inserting portion 111 or the elastic member 143 from being separated from the connecting portion 1421.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is included in the embodiment of the present utility model, the directional indication is merely used to explain a relative positional relationship, a movement condition, and the like between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or", "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B ", including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (10)

1. A connection assembly for communicating a first tubular body and a second tubular body, the connection assembly comprising:

the first connector comprises a first plug-in connection part and a first butt joint pipe, the first plug-in connection part is connected with the first butt joint pipe, and the first butt joint pipe is suitable for being connected with the first pipe body and communicated with each other; and

the second connector comprises a second plug-in connection part and a second butt joint pipe, the second plug-in connection part is connected with the second butt joint pipe, and the second butt joint pipe is suitable for being connected with the second pipe body and communicated with each other;

the first plug-in connection part is suitable for being plugged with the second plug-in connection part along the radial direction of the first plug-in connection pipe, so that one end of the first plug-in connection pipe is in butt joint with one end of the second plug-in connection pipe and communicated with one another.

2. The connection assembly of claim 1, wherein,

the first plug-in part is provided with a containing cavity extending along the radial direction, and the containing cavity is suitable for containing the second plug-in part;

the first plug-in part is also provided with a plug-in port communicated with the accommodating cavity, and the plug-in port deviates from the axis of the first butt joint pipe;

the second plug-in part penetrates through the plug-in port and is plugged in the accommodating cavity, so that one end of the first plug-in pipe is in butt joint with one end of the second plug-in pipe.

3. The connection assembly of claim 2, wherein,

the first plug-in connection part is connected to one end, close to the second joint, of the first butt-joint pipe along the axial direction of the first butt-joint pipe, and the first butt-joint pipe is communicated with the accommodating cavity;

the second plug-in part is connected to one end of the second butt joint pipe, which is close to the first joint, along the axial direction of the second butt joint pipe, and is provided with a through hole which is communicated with the second butt joint pipe;

the holding chamber is close to one side of second grafting portion has dodges the portion, dodge the portion and be suitable for holding the second is to take over, so that second grafting portion pass the interface and peg graft in hold the intracavity, and then make the one end of first is to taking over with the one end butt joint of second is to taking over and communicate each other.

4. The connection assembly of claim 3, wherein,

a sealing groove is formed in one side, close to the first plug-in part, of the second plug-in part, and the sealing groove is arranged around the periphery of the through hole;

the connection assembly also has a seal disposed about a perimeter of the through-hole, and the seal is interference fit within the seal groove.

5. The connection assembly of claim 4, wherein,

the groove wall of the sealing groove is provided with a concave part, the concave part is concave towards the direction deviating from the sealing groove, and the concave part extends along with the extending direction of the sealing groove;

the sealing element is provided with a protruding portion on the wall surface, which is in contact with the groove wall provided with the concave portion, the protruding portion protrudes towards the direction away from the sealing element, the protruding portion extends along with the extending direction of the sealing element, and the protruding portion is in interference fit in the concave portion.

6. The connection assembly of claim 2, wherein,

the second plug-in part is provided with a first surface and a second surface which are oppositely arranged along the extending direction of the axis, the first surface and the second surface jointly define an included angle alpha, and the opening end of the included angle alpha faces the plug-in port;

wherein, the contained angle alpha and the equivalent friction angle beta that the first face has satisfy: alpha < beta.

7. The connection assembly of claim 6, wherein,

the first face is perpendicular to an axis of the first nipple.

8. The connection assembly of claim 1, wherein,

the connecting assembly is further provided with a buckling assembly, the buckling assembly comprises a fixing piece and a buckling tooth piece, one side of the fixing piece is connected with one side of the first plug-in connection portion, the buckling tooth piece comprises a connecting portion and a claw portion, one end of the connecting portion is connected with one end, deviating from the first plug-in connection portion, of the fixing piece, and the other end of the connecting portion is connected with the claw portion;

the clamping claw parts are buckled and pressed on the second inserting part, so that the second inserting part is inserted and fixed in the first inserting part.

9. The connection assembly of claim 8, wherein,

the plugging action path of the first plugging part plugged in the second plugging part is a first direction, the direction of the first butt joint pipe pointing to the second butt joint pipe is a second direction, and the direction perpendicular to the first direction and the second direction is a third direction;

the connecting component is provided with two buckling component parts, and the two buckling component parts are respectively arranged at two ends of the first plug-in connection part along the third direction.

10. The connection assembly of claim 8, wherein,

a first limiting hole is formed in one side, close to the first inserting part, of the connecting part, a second limiting hole is formed in one side, close to the buckling component, of the first inserting part, and the second limiting hole is coaxial with the first limiting hole;

the buckling component further comprises an elastic piece, the elastic piece is located along the direction of the buckling tooth piece pointing to the first inserting portion, one end, close to the buckling tooth piece, of the elastic piece is contained in the first limiting hole, and one end, close to the first inserting portion, of the elastic piece is contained in the second limiting hole.