CN205479821U - Improved generation fluid pipeline quick -operation joint - Google Patents

Abstract

An improved fluid pipeline quick connector, comprising a connector body and a gland sleeved on the connector body, the connector body and the gland are threaded, and the inner wall of the connector body is provided with a ring Groove, a sealing ring is provided in the annular groove, a first protruding ring is provided at the rear end of the gland, the port of the joint body and the first protruding ring of the gland sleeved on the corresponding port A first accommodating space for accommodating the raised lines on the pipe is formed between the front ends of the pipes. Therefore, the utility model has the advantages of simpler structure, fewer components used, more convenient installation, can prevent the pipeline from withdrawing, can be more firmly fixed with the pipeline, and is safer to use.

Description

Improved fluid pipe quick connector

technical field

The utility model relates to the field of pipeline joints, in particular to an improved fluid pipeline quick joint.

Background technique

Pipe joints are parts that connect pipelines or install pipelines on hydraulic components in hydraulic systems. They play an indispensable role in pipe fittings and are one of the two main components of hydraulic pipelines. According to the different fluids in the pipeline, the requirements for pipe joints are also different. For this reason, people have produced various pipe joints; for example, someone has come up with such a pipe joint, whose structure is as follows, including the connector And the gland, the gland and the connector are detachably connected by threads, the end of the connector is provided with a snap ring seat; the inner end of the snap ring seat extends into the interior of the connector, and a sealing ring is provided against the snap ring seat , the outer end surface of the snap ring seat is provided with an elastic snap ring, the elastic snap ring includes a ring body and teeth arranged along the inner ring of the ring; the outer end of the elastic snap ring is provided with a pusher with a funnel-shaped inner wall, the two ends of the pusher are respectively Against the elastic snap ring and the boss. When in use, screw the gland tightly, the boss on the gland presses the push piece, and the push piece presses the elastic snap ring so that the teeth bite the pipe, so as to fix the pipe joint on the pipe.

However, the materials of the pipes used in different fluids are usually different, and because the materials of the pipes are different, the hardness of the pipes will also be different. When the hardness of the teeth on the ring is high, the teeth can tightly bite the pipe and achieve a good fixing effect; but when the hardness of the pipe is greater than the hardness of the teeth on the elastic snap ring, at this time, the teeth Compared with the pipe, it is soft, so it cannot bite the pipe firmly, and because the fluid pressure between the pipe and the pipe is relatively large, this kind of pipe joint can easily make the pipe withdraw from the pipe joint , so that the interface will burst open, resulting in fluid leakage, which will not only waste resources, but also the impact force of the sudden burst of the oil pipe is very large, which poses a safety hazard to the surrounding environment, and it is easy to damage people or things, and more importantly Yes, when the fluid is toxic, harmful, flammable or explosive, it will seriously affect people's normal life, and even endanger people's life, health and property safety; another aspect is that the pipe joint structure of the above-mentioned scheme is very It is complicated and has many parts, so it is very troublesome to install, and the cost is relatively high, so it is not suitable for popularization and application.

Utility model content

In order to overcome the above problems, the utility model provides the society with a simpler structure, fewer parts used, more convenient installation, can prevent the pipeline from exiting, and can be more firmly fixed with the pipeline, and can be used. Safer improved fluid line quick connectors.

The technical solution of the utility model is to provide an improved fluid pipeline quick joint, including a joint main body and a gland sleeved on the joint main body, the joint main body and the gland are threadedly connected, the An annular groove is provided on the inner wall of the joint main body, a sealing ring is provided in the annular groove, a first protruding ring is provided at the rear end of the gland, and the port of the joint main body is sleeved on the corresponding port. A first accommodating space for accommodating the raised strip on the pipeline is formed between the front ends of the first protruding ring of the upper gland.

As an improvement to the present utility model, the outer surface of the sealing ring protrudes from the inner wall of the joint main body.

As an improvement to the present utility model, the gland is provided with an internal thread, and the joint body is provided with an external thread. When the gland is rotated, the internal thread and the external thread bite each other so that the gland and the The joint main body is fixed as a whole.

As an improvement to the present invention, the joint body is a single-head joint body, a double-head joint body, a double-head elbow joint body or a three-way joint body.

As an improvement to the utility model, the inner wall of the joint main body is provided with a second protruding ring for positioning.

In the utility model, since the inner wall of the joint main body is provided with an annular groove, a sealing ring is arranged in the annular groove, a first protruding ring is provided at the rear end of the gland, and the port of the joint main body is connected to the Between the front end of the first protruding ring of the gland that is sleeved on the corresponding port, the first accommodating space for accommodating the convex strip on the pipeline is formed; The strip is just located in the first accommodating space, and the protruding strip is tightly restricted in the first accommodating space, so that the pipeline is restricted in the axial direction and is difficult to move, so the pipeline is not easy to slip or withdraw, and the connection of the pipeline is also It is not easy to burst, and it is safer to use; the utility model needs fewer parts, the disassembly and assembly are faster, and the maintenance and repair are more convenient. Therefore, the utility model can prevent the pipeline from withdrawing, and can It has the advantages of more firmly fixed, simpler structure, fewer parts used, and lower cost.

Description of drawings

Fig. 1 is a schematic diagram of the exploded structure of the first embodiment of the utility model.

Fig. 2 is a structural schematic diagram of the first embodiment of the utility model in use state.

FIG. 3 is a schematic diagram of the axial sectional structure of FIG. 2 .

Fig. 4 is a schematic diagram of the structure of the second embodiment of the utility model in use.

FIG. 5 is a schematic diagram of the axial sectional structure of FIG. 4 .

Fig. 6 is a schematic diagram of the structure of the third embodiment of the utility model in use.

FIG. 7 is a schematic diagram of the axial sectional structure of FIG. 6 .

detailed description

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by "center", "upper", "lower", "front", "rear", "left", "right" etc. in terms is Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot It should be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a disassembly Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations. In addition, in the description of the present utility model, unless otherwise specified, the meanings of "plurality" and "several" are two or more.

Please refer to Fig. 1 to Fig. 3 first. Fig. 1 to Fig. 3 reveal the first embodiment of the improved quick connector of fluid pipeline, an improved quick connector of fluid pipeline, including a joint main body 1 and sleeved on the joint The gland 2 on the main body 1 is threadedly connected between the joint main body 1 and the gland 2, an annular groove 11 is provided on the inner wall of the joint main body 1, and an annular groove 11 is provided in the annular groove 11 Sealing ring 3. In this embodiment, the joint main body 1 is a double-headed joint main body and is straight-through. Therefore, the two ends of the joint main body 1 are respectively provided with glands 2, and the inner wall of the joint main body 1 There are two annular grooves 11, each of which is provided with a sealing ring 3; the rear end 20 of each of the glands 2 is provided with a first protruding ring 21, and the joint body 1 Between the port 11 on the top and the front end 211 of the first protruding ring 21 of the gland 2 sleeved on the corresponding port 11, the first accommodating space 5 for accommodating the convex strip 40 on the pipeline 4 is formed; the utility model When in use, the sealing ring 3 is first fixed in the annular groove 11 of the joint main body 1. In the present invention, the inner wall of the joint main body 1 is provided with a second protruding ring 12 for positioning. Insert the pipe 4 into the joint main body 1, push the pipe 4 until the pipe 4 reaches the second protruding ring 12, then stop pushing, put the glands 2 on the two ends of the joint main body 1 respectively. When the gland 2 is screwed on, there is a large distance between the port 11 of the joint body 1 and the front end 211 of the first protruding ring 21 of the gland 2 sleeved on the corresponding port 11, and the pipe 4 The convex strip 40 is just between the port 11 of the joint body 1 and the front end 211 of the first convex ring 21 of the gland 2 sleeved on the corresponding port 11, and the gland 2 is rotated, and the gland 2 Moving towards the direction of the joint main body 1, the distance between the port 11 of the joint main body 1 and the front end 211 of the first protruding ring 21 of the gland 2 sleeved on the corresponding port 11 is gradually decreasing. The gland 2 moves until the front end 211 of the first protruding ring 21 abuts against the protruding strip 40 , and at this time, the protruding strip 40 is limited to the port 11 of the joint body 1 and sleeved on the corresponding port 11 In the first accommodating space 5 formed between the front ends 211 of the first protruding ring 21 of the gland 2 (in this embodiment, the details here are the screwing process of one gland 2, and the other gland The same is also tightened), so that the joint body 1 and the gland 2 are tightly integrated, and the utility model achieves the purpose of sealingly connecting the two pipelines 4 by using fewer parts, so The structure of the utility model is simpler, more convenient for disassembly and maintenance, and the cost is lower, which is more suitable for popularization and application; in the utility model, the convex strip 40 on the pipeline 4 is limited in the first accommodation space 5, the pipeline is limited in the axial direction, so it is difficult to move, so the pipeline 4 is not easy to slip off or withdraw at will, and the joint of the pipeline is not easy to burst. The outer wall of the pipeline 4 selected in the utility model is provided with a convex strip 40, and the convex strip 40 is extended by the pipe 4 itself Protruding, compared with the teeth in the prior art, the utility model has reached the purpose of selecting any material for the pipeline 4, and the phenomenon that the pipeline 4 is pressed and damaged by the teeth will not occur.

In the utility model, in order to enable the sealing ring 3 to achieve a better sealing effect and enhance the sealing performance of the utility model, the cross section of the sealing ring 3 protrudes from the inner wall of the joint body 1; further , in order to prevent the sealing ring 3 from being pushed out of the annular groove 11 during the insertion process of the pipe 4, in the present utility model, preferably, one-third of the cross-sectional area of the sealing ring 3 protrudes from the inner wall of the joint body 1; in the present utility model, preferably, the cross-sectional shape of the sealing ring 3 can be circular (as shown in Figure 3 in this embodiment), or can be "V" shape, can also be "W" shape.

In the present utility model, preferably, the gland 2 is provided with an internal thread 22, and the joint body 1 is provided with an external thread 12. When the gland 2 is rotated, the internal thread 22 and the external thread 12 bite each other. tight so that the gland 2 and the joint body 1 are fixed together; further, in the present utility model, the internal thread 22 on the gland 2 and the external thread 12 on the joint body 1 are commercially available Generally speaking, the advantage of this is that when the gland 2 or the joint body 1 is damaged, the user can configure the corresponding joint body 1 or gland 2 by himself, instead of looking for a special store or manufacturer to buy it. More convenient.

The utility model can also be set as a second embodiment (as shown in Figure 4 to Figure 5), the second embodiment is substantially the same as the first embodiment, the difference is that the joint body 1 is three Correspondingly, the main body of the three-way joint is equipped with three glands 2 , and three annular grooves 11 for accommodating the sealing ring 3 are provided in the main body of the three-way joint.

The utility model can also be set as a third embodiment (as shown in Figure 6 to Figure 7), the third embodiment is substantially the same as the first embodiment, the difference is that the joint body 1 is a double Correspondingly, the main body of the double-ended elbow joint is equipped with two glands 2, and the main body of the double-ended elbow joint is provided with two sealing rings. 3 of the annular groove 11.

Claims (6)

1. an improved fluid Quick joinker for pipeline, including adapter body (1) and the gland (2) that is set in described adapter body (1), it is to threaded between described adapter body (1) with described gland (2), it is characterized in that, the inwall of described adapter body (1) is provided with annular groove (10), sealing ring (3) it is provided with in described annular groove (10), the rear end (20) of described gland (2) is provided with the first bulge loop (21), constitute, between the port (11) of described adapter body (1) and the front end (211) of first bulge loop (21) of gland (2) being set on corresponding ports (11), the first accommodation space (5) being used for housing the raised line (40) on pipeline (4).

Improved fluid Quick joinker for pipeline the most according to claim 1, it is characterised in that: the outer surface of described sealing ring (3) protrudes from the inwall of described adapter body (1).

Improved fluid Quick joinker for pipeline the most according to claim 1 and 2, it is characterized in that: described gland (2) is provided with female thread (22), described adapter body (1) is provided with external screw thread (12), rotating described gland (2), described female thread (22) and external screw thread (12) are stung mutually tight so that described gland (2) is integrally fixed with described adapter body (1).

Improved fluid Quick joinker for pipeline the most according to claim 1 and 2, it is characterised in that: described adapter body (1) is single head adapter body, double end adapter body, double end union elbow main body or three way cock's main body.

Improved fluid Quick joinker for pipeline the most according to claim 1 and 2, it is characterised in that: the inwall of described adapter body (1) is provided with for spacing the second bulge loop (13).

Improved fluid Quick joinker for pipeline the most according to claim 3, it is characterised in that: the inwall of described adapter body (1) is provided with for spacing the second bulge loop (13).