A connector for connecting pipelines

Abstract

The present invention discloses a connector for connecting pipelines, which includes a female end connector and a male end connector both in tubular shape. One end of the female end connector is used to connect to a pipeline. The male end connector includes a plug for inserting into the other end of the female end connector and a joint for connecting to another pipeline. A circumferentially arranged limiting portion is provided on the plug of the male end connector. An arc-shaped through groove is provided on the tube wall of the female end connector opposite to the limiting portion. A snap ring for clamping to the limiting portion is provided on the through groove. Snap openings are provided at both ends of the through groove. Hook-shaped portions for clamping to the snap openings are provided at both ends of the snap ring. By inserting and removing the snap ring to change the clamping degree between the snap ring and the limiting portion on the male end connector, the connection relationship between the female end connector and the male end connector can be quickly adjusted, with simple assembly and convenient adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle pipeline parts, and specifically relates to a connector for connecting pipelines. Background Art

[0002] Currently, in the automotive intake system, most of the connections of the intake pipelines are made by directly locking with clamps. Since the intake pipelines on vehicles have high requirements for airtightness and shock resistance, the assembly precision requirements for connecting the pipelines with clamps are relatively high, resulting in problems such as long assembly time and cumbersome disassembly and assembly processes, and increasing the labor cost of assembly. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a connector for connecting pipelines that is convenient for disassembly and assembly and has good airtightness and shock resistance.

[0004] The technical solution of the present invention is to provide a connector for connecting pipelines, including a female end connector and a male end connector both in tubular shape. One end of the female end connector is used to connect to a pipeline. The male end connector includes a plug for inserting into the other end of the female end connector and a joint for connecting to another pipeline. The plug of the male end connector is provided with a circumferentially arranged limiting portion. The tube wall of the female end connector is provided with through slots distributed circumferentially and arranged opposite to the limiting portion. A snap ring for clamping to the limiting portion is provided on the through slots. Both ends of the through slots are provided with bayonets. Both ends of the snap ring are provided with hooks for clamping to the bayonets.

[0005] Compared with the prior art, the beneficial effects of the above solution are as follows: By providing through slots on the female end connector and a snap ring on the through slots, the clamping degree between the snap ring and the limiting portion on the male end connector can be changed by inserting and removing the snap ring, so that the connection relationship between the female end connector and the male end connector can be quickly adjusted, with simple assembly and convenient adjustment. In addition, since the plug of the male end connector is inserted inside the female end connector, it will not easily come out or shift, and the airtightness and shock resistance of their connection are both good.

[0006] Preferably, the limiting portion is a limiting groove, and the limiting groove is circular, so that the male end connector can be inserted into the female end connector at any angle, effectively reducing the assembly difficulty.

[0007] Preferably, the plug of the male end connector is further provided with a circumferentially arranged annular boss. The boss is located at a position on the plug that is inserted into the female end connector before the limiting portion. The height of the boss gradually decreases along the direction in which the plug is inserted into the female end connector to form an inclined surface. The boss is used to play a guiding role when the male end connector is inserted into the female end connector, further reducing the assembly difficulty.

[0008] Preferably, the through groove is semi-circular, and the bayonet sockets are symmetrically distributed at the leftmost and rightmost ends of the female terminal connector, so that the hooks of the snap spring can be more firmly snapped into the bayonet sockets, increasing the connection stability between the snap spring and the limiting part.

[0009] Preferably, the bayonet socket includes an independent clamping groove and an origin groove. The distance between the middle part of the through groove and the clamping groove is greater than the distance between the middle part of the through groove and the origin groove. When the hook is snapped into the origin groove, the snap spring is separated from the limiting part. When the hook is snapped into the clamping groove, the snap spring is snapped into the limiting part, thus further facilitating the disassembly and assembly of the snap spring.

[0010] Preferably, a sealing ring is further provided between the plug of the male terminal connector and the female terminal connector, thereby improving the airtightness between the two.

[0011] Preferably, the material of the snap spring is spring steel, so as to ensure that the snap spring can elastically deform and improve the seismic resistance when the snap spring is connected to the limiting part.

[0012] Preferably, a rotatable lock button is further provided on the female terminal connector. The lock button is located between the clamping groove and the origin groove of the bayonet socket. The lock button is used to close the notch of the clamping groove, so as to prevent the snap spring from coming out of the locking groove and improve the seismic resistance of the connection between the male terminal connector and the female terminal connector.

[0013] Preferably, the lock button includes a rotating shaft threadedly connected to the female terminal connector and an elastic locking rod connected to the rotating shaft. A locking groove for the locking rod to be snapped into is provided on the groove wall of the clamping groove away from the origin groove. When it is necessary to lock the snap spring in the clamping groove, rotate the rotating shaft in the direction of screwing into the female terminal connector. At this time, the vertical distance between the locking rod and the female terminal connector will continuously decrease until the locking rod abuts against the outer pipe wall of the female terminal connector and elastically deforms. When the locking rod further rotates to the position of the locking groove, the locking rod will be elastically embedded in the locking groove due to elasticity, and the snap spring is completely locked, which is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an exploded schematic view of a connector for connecting pipelines according to the present invention;

[0015] Figure 2 is a schematic view of another embodiment of the female terminal connector of a connector for connecting pipelines according to the present invention;

[0016] In the drawings: 1 - female terminal connector; 1.1 - through groove; 1.2 - clamping groove; 1.3 - origin groove; 2 - male terminal connector; 2.1 - plug; 2.2 - joint; 2.3 - limiting groove; 2.4 - boss; 3 - snap spring; 3.1 - hook; 4 - sealing ring; 5 - lock button; 5.1 - locking groove; 6 - pipeline. Detailed implementation manners

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1

[0019] Please refer to Figure 1 , a connector for connecting pipelines provided by an embodiment of the present invention includes a female end connector 1 and a male end connector 2 that are both tubular. One end of the female end connector 1 is used to connect to a pipeline 6. The male end connector 2 includes a plug 2.1 for inserting into the other end of the female end connector 1 and a joint 2.2 for connecting to another pipeline 6. A limiting portion is provided on the plug 2.1 of the male end connector 2 along the circumferential direction. A through groove 1.1 is provided on the pipe wall of the female end connector 1 along the circumferential direction and is disposed opposite to the limiting portion. A snap spring 3 is provided on the through groove 1.1 for engaging with the limiting portion. Both ends of the through groove 1.1 are provided with bayonets, and both ends of the snap spring 3 are provided with hooks 3.1 for engaging with the bayonets.

[0020] When the above basic solution is used, first install the female end connector 1 and the male end connector 2 to two pipelines 6 to be connected respectively. Then insert the plug 2.1 of the male end connector 2 into the female end connector 1 until the through groove 1.1 is opposite to the limiting portion, and insert the snap spring 3 into the through groove 1.1 until the hooks 3.1 are engaged with the bayonets. At this time, the body of the snap spring 3 will be engaged with the limiting portion, and the male end connector 2 and the female end connector 1 are fixed to each other. At the same time, since the plug 2.1 of the male end connector 2 is inserted inside the female end connector 1, it will not easily come out or shift, and the airtightness and shock resistance of their connection are both good. When it is necessary to separate the two pipelines 6, only need to pull out the snap spring 3 from the through groove 1.1, and the male end connector 2 can be freely detached from the female end connector 1, and the disassembly is simple and convenient.

[0021] In this embodiment, the limiting part is a limiting groove 2.3, and the limiting groove 2.3 is annular, so that the male connector 2 can be inserted into the female connector 1 at any angle, effectively reducing the assembly difficulty. As an optimization of the male connector 2, an annular boss 2.4 is further provided on the plug 2.1 along the circumferential direction. The boss 2.4 is located at a position on the plug 2.1 that is inserted into the female connector 1 prior to the limiting part. The height of the boss 2.4 gradually decreases along the direction in which the plug 2.1 is inserted into the female connector 1 to form an inclined surface. The boss 2.4 is used to play a guiding role when the male connector 2 is inserted into the female connector 1, further reducing the assembly difficulty. A sealing ring 4 can also be provided between the plug 2.1 of the male connector 2 and the female connector 1 to improve the airtightness between the two.

[0022] The through groove 1.1 is preferably semi-circular, and the bayonets are symmetrically distributed at the leftmost and rightmost ends of the female connector 1, so that the hooks 3.1 of the snap ring 3 can be more firmly snapped into the bayonets, increasing the connection stability between the snap ring 3 and the limiting part. The material of the snap ring 3 is spring steel, so as to ensure that the snap ring 3 can elastically deform and improve the seismic resistance when the snap ring 3 is connected to the limiting part.

[0023] The bayonet can be a groove with a 90° angle with the through groove 1.1. At the same time, there is also the same 90° angle between the hook 3.1 and the snap ring 3. So that when the snap ring 3 is completely inserted into the through groove 1.1, the hook 3.1 just fits into the groove. At this time, the body of the snap ring 3 is clamped with the limiting part on the male connector 2 to achieve fixation.

[0024] As Figure 1 shown, in this embodiment, the bayonet includes an independent clamping groove 1.2 and an origin groove 1.3. The distance between the middle of the through groove 1.1 and the clamping groove 1.2 is greater than the distance between the middle of the through groove 1.1 and the origin groove 1.3. When the hook 3.1 is clamped into the origin groove 1.3, the snap ring 3 is separated from the limiting part. When the hook 3.1 is clamped into the clamping groove 1.2, the snap ring 3 is clamped with the limiting part, thus further facilitating the disassembly and assembly of the snap ring 3.

[0025] As Figure 2As shown, in another embodiment, a rotatable locking button 5 is further provided on the female terminal connector 1. The locking button 5 is located between the clamping groove 1.2 and the origin groove 1.3 of the same bayonet. The locking button 5 includes a rotating shaft threadedly connected to the female terminal connector 1 and an elastic locking rod connected to the rotating shaft. A locking groove 5.1 communicating with the outer tube wall of the female terminal connector 1 is provided on the groove wall of the clamping groove 1.2 away from the origin groove 1.3. When it is necessary to lock the circlip 3 in the clamping groove 1.2, the rotating shaft is rotated in the direction of screwing into the female terminal connector 1. At this time, the vertical distance between the locking rod and the female terminal connector 1 will continuously decrease until the locking rod abuts against the outer tube wall of the female terminal connector 1 and deforms elastically. When the locking rod further rotates to the position of the locking groove 5.1, the locking rod will be elastically embedded in the locking groove 5.1, and the circlip 3 will be completely locked. The setting of the locking button 5 can prevent the circlip 3 from disengaging from the locking groove and improve the shock resistance of the connection between the male terminal connector 2 and the female terminal connector 1.

[0026] Compared with the prior art, by inserting and removing the circlip 3 to change the clamping degree between the circlip 3 and the limiting part on the male terminal connector 2, the connection relationship between the female terminal connector 1 and the male terminal connector 2 can be quickly adjusted, with simple assembly and convenient adjustment.

[0027] The present invention has been introduced in detail above. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A connector for connecting pipelines, characterized in that, it includes a female end connector (1) and a male end connector (2) both in tubular shape. One end of the female end connector (1) is used to connect to a pipeline (6). The male end connector (2) includes a plug (2.1) for inserting into the other end of the female end connector (1) and a joint (2.2) for connecting to another pipeline (6). A limiting part is arranged circumferentially on the plug (2.1) of the male end connector (2). Through grooves (1.1) distributed circumferentially and arranged opposite to the limiting part are provided on the pipe wall of the female end connector (1). A snap ring (3) for clamping onto the limiting part is provided on the through grooves (1.1). Snap openings are provided at both ends of the through grooves (1.1). Clamping hooks (3.1) for clamping into the snap openings are provided at both ends of the snap ring (3); the through grooves (1.1) are semi-circular, and the snap openings are symmetrically distributed at the leftmost and rightmost ends of the female end connector (1); the snap openings include independent clamping grooves (1.2) and origin grooves (1.3). The distance between the middle of the through grooves (1.1) and the clamping grooves (1.2) is greater than the distance between the middle of the through grooves (1.1) and the origin grooves (1.3). When the clamping hooks (3.1) are clamped into the origin grooves (1.3), the snap ring (3) is separated from the limiting part. When the clamping hooks (3.1) are clamped into the clamping grooves (1.2), the snap ring (3) is clamped with the limiting part; the limiting part is a limiting groove (2.3), and the limiting groove (2.3) is annular; a rotatable lock button (5) is further provided on the female end connector (1). The lock button (5) is located between the clamping groove (1.2) and the origin groove (1.3) of the snap opening, and the lock button (5) is used to close the notch of the clamping groove (1.2).

2. A connector for connecting pipelines according to claim 1, characterized in that, an annular boss (2.4) arranged circumferentially is further provided on the plug (2.1) of the male end connector (2). The boss (2.4) is located at a position on the plug (2.1) that is inserted into the female end connector (1) prior to the limiting part. The height of the boss (2.4) gradually decreases along the direction in which the plug (2.1) is inserted into the female end connector (1) to form an inclined surface.

3. A connector for connecting pipelines according to claim 1, characterized in that, the material of the snap ring (3) is spring steel.

4. A connector for connecting pipelines according to claim 1, characterized in that, a sealing ring (4) is further provided between the plug (2.1) of the male end connector (2) and the female end connector (1).

5. A connector for connecting pipelines according to claim 1, characterized in that, the lock button (5) includes a rotating shaft threadedly connected to the female end connector (1) and an elastic locking rod connected to the rotating shaft. A locking groove (5.1) for the locking rod to be clamped is provided on the groove wall of the clamping groove (1.2) away from the origin groove (1.3).

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