Pipeline connector

Abstract

The utility model discloses a pipeline connector. The pipeline connector comprises a plug and a socket, the plug comprises a plug shell, a movable sealing plug and a first spring, a first channel is formed in the plug shell, the movable sealing plug can slide into a first plugging section of the first channel to realize plugging, and the first spring drives the movable sealing plug to press the first plugging section; the socket comprises a socket shell, a movable sealing ring, a core rod and a second spring, a through second channel is formed in the socket shell, the core rod is installed in the second channel, the movable sealing ring slides in the second channel and can slide into the second plugging section to achieve plugging, and the second spring drives the movable sealing ring to press the second plugging section. The movable sealing plug is compressed by the first spring, and the movable sealing ring is compressed by the second spring, so that the plug and the socket can prevent fluid from flowing out; after the plug shell is inserted into the socket shell, the movable sealing plug is jacked open by the core rod, and the movable sealing ring is jacked open by the plug shell, so that fluid can flow through smoothly, and the structure is simple and reliable.

Description

Technical Field

[0001] The present application relates to the field of fluid connectors, and in particular to a pipeline connector. Background Art

[0002] A fluid pipeline connector is a device installed at the end of a pipe and used to connect originally separated pipe sections to each other. It can extend the pipeline and is often used in daily life or industrial production. There are many specific structures of pipeline connectors, among which threaded connection is the most common.

[0003] In some application scenarios, pipelines need to be frequently switched on and off, and it is required that the flow of fluid can be cut off at the same time when the pipeline connector is separated to prevent the fluid from flowing out of the pipe section. Therefore, this type of pipeline connector also needs to be equipped with a valve body. When the fluid connector is separated, the valve body closes to block the fluid in the pipeline from flowing out; when the fluid connector is reconnected, the valve body opens, and the fluid can flow normally in the pipeline.

[0004] This type of pipe connector requires a simple and compact structure to reduce the risk of valve body structure errors and reduce the occupation of surrounding space. At the same time, the resistance of the fluid in the fluid pipeline is relatively large, and the valve body is also required to be able to withstand a large force and continue to work. Summary of the invention

[0005] The purpose of the present application is to solve at least one of the technical problems existing in the prior art, and to provide a pipeline connector that can prevent fluid from flowing out when separating pipe sections and has stable structural characteristics.

[0006] According to an embodiment of the present application, a pipeline connector is provided, comprising a plug and a socket, wherein:

[0007] The plug comprises a plug housing, a dynamic sealing plug and a first spring. The plug housing is tubular and has a first through passage therein. A first blocking section with a narrowed inner diameter is provided at a first end of the first passage. The second end of the first passage is connected to an external pipeline. The dynamic sealing plug slides in the first passage. The dynamic sealing plug can slide into the first blocking section and abut against the inner wall of the first blocking section to achieve blocking. Both ends of the first spring are respectively connected to the dynamic sealing plug and the plug housing. The first spring drives the dynamic sealing plug to approach the first end of the first passage.

[0008] The socket comprises a socket housing, a dynamic sealing ring, a core rod and a second spring. The socket housing is tubular and has a second through passage therein. A second blocking section is provided at the first end of the second passage, and the second end of the second passage is connected to an external pipe. The core rod is installed in the second passage and is coaxial with the central axis of the second passage. The first end of the core rod has a larger outer diameter and is provided in the second blocking section. The dynamic sealing ring slides in the second passage and can slide between the first end of the core rod and the second blocking section to achieve blocking. The two ends of the second spring are respectively connected to the dynamic sealing ring and the socket housing, and the second spring drives the dynamic sealing ring to approach the first end of the second passage.

[0009] The plug housing can be inserted into the second channel of the socket housing, the dynamic sealing plug can abut against the end of the core rod, and the first end of the plug housing can abut against the dynamic sealing ring.

[0010] According to an embodiment of the present application, further, one end of the dynamic sealing plug facing the second end of the first channel is in a truncated cone shape.

[0011] According to an embodiment of the present application, further, a first sealing ring is sleeved on the outer side surface of the dynamic sealing plug, and the first sealing ring is in contact with the inner wall of the first sealing section.

[0012] According to an embodiment of the present application, further, an outer diameter of the first end of the core rod gradually increases compared to an outer diameter of a middle portion of the core rod.

[0013] According to an embodiment of the present application, further, the second end of the core rod is fixedly connected to the second channel, and the second end of the core rod is provided with a through hole through which a fluid can pass.

[0014] According to an embodiment of the present application, further, an outer diameter of the second end of the core rod gradually increases compared to an outer diameter of a middle portion of the core rod.

[0015] According to an embodiment of the present application, further, an end of the dynamic sealing ring close to the second end of the second channel is provided with an inner chamfer.

[0016] According to an embodiment of the present application, further, a second sealing ring is sleeved on the outer side surface of the end portion of the core rod, and the second sealing ring is in contact with the inner wall of the dynamic sealing ring.

[0017] According to an embodiment of the present application, further, the inner wall of the second blocking section is sleeved with a third sealing ring, and the third sealing ring is in contact with the outer wall of the dynamic sealing ring.

[0018] According to an embodiment of the present application, further, a convex ball is arranged inside the second channel, and a fixing groove is opened on the outer side of the plug housing, and the convex ball can be inserted into the fixing groove to limit and fix the plug housing.

[0019] The beneficial effects of the embodiments of the present application include at least: the present application compresses the dynamic sealing plug by the first spring and compresses the dynamic sealing ring by the second spring, so that both the plug and the socket can prevent the fluid from flowing out; after the plug housing is inserted into the socket housing, the dynamic sealing plug is pushed open by the core rod, and the dynamic sealing ring is pushed open by the plug housing, so that the fluid can flow through smoothly, and the structure is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief description of the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present application, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0021] Figure 1 is a three-dimensional diagram of a pipe connector according to an embodiment of the present application;

[0022] Figure 2 is a cross-sectional view of a plug 100 in a pipe connector according to an embodiment of the present application;

[0023] Figure 3 is a cross-sectional view of a socket 200 in a pipe connector according to an embodiment of the present application;

[0024] Figure 4 is a three-dimensional diagram of the core rod 230 in the pipe connector according to the embodiment of the present application;

[0025] Figure 5 It is a cross-sectional view of the plug 100 and the socket 200 in the pipe connector of the embodiment of the present application after being plugged into each other.

[0026] Figure markings: 100-plug, 110-plug housing, 111-first channel, 112-first sealing section, 113-fixing groove, 120-dynamic sealing plug, 121-first sealing ring, 130-first spring, 200-socket, 210-socket housing, 211-second channel, 212-second sealing section, 213-third sealing ring, 220-dynamic sealing ring, 230-core rod, 231-second sealing ring, 240-second spring, 250-convex ball. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0031] A fluid pipeline connector is a device installed at the end of a pipe and used to connect originally separated pipe sections to each other. It can extend the pipeline and is often used in daily life or industrial production. There are many specific structures of pipeline connectors, among which threaded connection is the most common.

[0032] In some application scenarios, pipelines need to be frequently switched on and off, and it is required that the flow of fluid can be cut off at the same time when the pipeline connector is separated to prevent the fluid from flowing out of the pipe section. Therefore, this type of pipeline connector also needs to be equipped with a valve body. When the fluid connector is separated, the valve body closes to block the fluid in the pipeline from flowing out; when the fluid connector is reconnected, the valve body opens, and the fluid can flow normally in the pipeline.

[0033] This type of pipe connector requires a simple and compact structure to reduce the risk of valve body structure errors and reduce the occupation of surrounding space. At the same time, the resistance of the fluid in the fluid pipeline is relatively large, and the valve body is also required to be able to withstand a large force and continue to work.

[0034] In this regard, the present application proposes a pipe connector, which compresses the dynamic sealing plug 120 by a first spring 130 and compresses the dynamic sealing ring 220 by a second spring 240, so that both the plug 100 and the socket 200 can prevent the fluid from flowing out; after the plug housing 110 is inserted into the socket housing 210, the dynamic sealing plug 120 is pushed open by the core rod 230, and the dynamic sealing ring 220 is pushed open by the plug housing 110, so that the fluid can flow through smoothly, and the structure is simple and reliable.

[0035] Reference Figure 1 The pipe connector in the embodiment of the present application includes a plug 100 and a socket 200, both of which are connected to external pipes respectively. When the plug 100 and the socket 200 are plugged into each other, the pipe connection can be achieved.

[0036] Specifically, refer to Figure 2 , the plug 100 includes a plug housing 110, a dynamic sealing plug 120 and a first spring 130. The plug housing 110 is tubular and has a first through passage 111 therein. A first blocking section 112 with a narrowed inner diameter is provided at the first end of the first passage 111, and the second end of the first passage 111 is connected to an external pipe. The dynamic sealing plug 120 slides in the first passage 111, and can slide into the first blocking section 112 and abut against the inner wall of the first blocking section 112 to achieve blocking. The two ends of the first spring 130 are respectively connected to the dynamic sealing plug 120 and the plug housing 110, and the first spring 130 drives the dynamic sealing plug 120 to approach the first end of the first passage 111. Moreover, a step is provided on the outer side of the dynamic sealing plug 120 for preventing the dynamic sealing plug 120 from falling out. When the first spring 130 presses the dynamic sealing plug 120 toward the first end of the first passage 111, the step abuts against the first blocking section 112, thereby limiting the dynamic sealing plug 120 from popping out.

[0037] Reference Figure 3 The socket 200 includes a socket housing 210, a dynamic sealing ring 220, a core rod 230 and a second spring 240. The socket housing 210 is tubular and has a second through passage 211 formed therein. A second blocking section 212 is disposed at a first end of the second passage 211, and a second end of the second passage 211 is connected to an external pipeline. Figure 4The core rod 230 is installed in the second channel 211 and is coaxial with the central axis of the second channel 211. The first end of the core rod 230 has a larger outer diameter and is arranged in the second blocking section 212. The dynamic seal ring 220 slides in the second channel 211. The dynamic seal ring 220 can slide between the first end of the core rod 230 and the second blocking section 212 to achieve blocking. The two ends of the second spring 240 are respectively connected to the dynamic seal ring 220 and the socket housing 210. The second spring 240 drives the dynamic seal ring 220 to approach the first end of the second channel 211. In addition, the outer side surface of the dynamic seal ring 220 is provided with a step for preventing the dynamic seal ring 220 from falling out. When the second spring 240 presses the dynamic seal ring 220 toward the first end of the second channel 211, the step abuts against the second blocking section 212, thereby limiting the dynamic seal ring 220 from popping out.

[0038] When the plug 100 and the socket 200 are not plugged into each other, the dynamic seal plug 120 in the plug 100 is pressed by the first spring 130 and the fluid pressure to the first end of the first channel 111 to prevent the fluid from flowing out, and the dynamic seal ring 220 in the socket 200 is pressed by the second spring 240 and the fluid pressure to the first end of the second channel 211 to prevent the fluid from flowing out. Figure 5 , the plug housing 110 can be inserted into the second channel 211 of the socket housing 210, the dynamic sealing plug 120 can abut against the end of the core rod 230, and the first end of the plug housing 110 can abut against the dynamic sealing ring 220. During the further insertion of the plug 100, the dynamic sealing plug 120 is pushed open by the core rod 230, and the dynamic sealing ring is pushed open by the plug housing 110, so that the fluid can flow between the plug 100 and the socket 200.

[0039] Furthermore, one end of the dynamic sealing plug 120 facing the second end of the first channel 111 is truncated cone-shaped, so that after the plug 100 and the socket 200 are connected, the impact of water flow power on the dynamic sealing plug 120 can be reduced when the fluid flows through the dynamic sealing plug 120 .

[0040] Furthermore, a first sealing ring 121 is sleeved on the outer side surface of the dynamic sealing plug 120, and the first sealing ring 121 is in contact with the inner wall of the first blocking section 112, thereby improving the sealing performance of the dynamic sealing plug 120 when blocking the first blocking section 112 and reducing the risk of fluid leakage.

[0041] Furthermore, the outer diameter of the first end of the core rod 230 is gradually increased compared to the outer diameter of the middle portion of the core rod 230 , so that after the plug 100 and the socket 200 are connected, the impact of water flow power on the core rod 230 can be reduced when the fluid flows through the core rod 230 .

[0042] Furthermore, the second end of the core rod 230 is fixedly connected to the second channel 211 , and a through hole is provided at the second end of the core rod 230 for allowing fluid to pass through, thereby reducing the impact on the fluid circulation.

[0043] Furthermore, the outer diameter of the second end of the core rod 230 is gradually increased compared to the outer diameter of the middle portion of the core rod 230, so as to be fully connected to the second channel 211. At the same time, after the plug 100 is connected to the socket 200, the impact of the water flow on the core rod 230 can be reduced when the fluid flows through the core rod 230.

[0044] Furthermore, an end of the dynamic sealing ring 220 close to the second end of the second channel 211 is provided with an inner chamfer for guiding the fluid to flow into the gap between the dynamic sealing ring 220 and the core rod 230 .

[0045] Furthermore, a second sealing ring 231 is sleeved on the outer side surface of the end of the core rod 230 , and the second sealing ring 231 is in contact with the inner wall of the dynamic sealing ring 220 , thereby improving the sealing performance and reducing the risk of fluid leakage in the gap between the core rod 230 and the dynamic sealing ring 220 .

[0046] Furthermore, a third sealing ring 213 is sleeved on the inner wall of the second sealing section 212 , and the third sealing ring 213 is in contact with the outer wall of the dynamic sealing ring 220 , thereby improving the sealing performance and reducing the risk of fluid leakage in the gap between the dynamic sealing ring 220 and the inner wall of the second sealing section 212 .

[0047] Furthermore, a convex ball 250 is disposed inside the second channel 211 , and a fixing groove 113 is provided on the outer side of the plug housing 110 . The convex ball 250 can be inserted into the fixing groove 113 to limit and fix the plug housing 110 .

[0048] The above is a specific description of the preferred implementation methods of the present application, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present application, and these equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A pipe connector, characterized in that: It comprises a plug (100) and a socket (200), wherein: The plug (100) comprises a plug housing (110), a dynamic sealing plug (120) and a first spring (130); the plug housing (110) is tubular and has a first through passage (111) therein; a first blocking section (112) with a narrowed inner diameter is provided at the first end of the first passage (111); the second end of the first passage (111) is connected to an external pipeline; the dynamic sealing plug (120) slides in the first passage (111); the dynamic sealing plug (120) can slide into the first blocking section (112) and abut against the inner wall of the first blocking section (112) to achieve blocking; two ends of the first spring (130) are respectively connected to the dynamic sealing plug (120) and the plug housing (110); the first spring (130) drives the dynamic sealing plug (120) to approach the first end of the first passage (111); The socket (200) comprises a socket housing (210), a dynamic sealing ring (220), a core rod (230) and a second spring (240); the socket housing (210) is tubular and has a second through passage (211) therein; a second blocking section (212) is provided at a first end of the second passage (211); and a second end of the second passage (211) is connected to an external pipeline; the core rod (230) is installed in the second passage (211) and is coaxial with the central axis of the second passage (211); the core rod (230) ) has a first end with an outer diameter that becomes larger and is disposed in the second blocking section (212), the dynamic sealing ring (220) slides in the second channel (211), and the dynamic sealing ring (220) can slide between the first end of the core rod (230) and the second blocking section (212) to achieve blocking, the two ends of the second spring (240) are respectively connected to the dynamic sealing ring (220) and the socket housing (210), and the second spring (240) drives the dynamic sealing ring (220) to approach the first end of the second channel (211); The plug housing (110) can be inserted into the second channel (211) of the socket housing (210), the dynamic sealing plug (120) can abut against the end of the core rod (230), and the first end of the plug housing (110) can abut against the dynamic sealing ring (220).

2. The pipe connector according to claim 1, characterized in that: One end of the dynamic sealing plug (120) facing the second end of the first channel (111) is in a truncated cone shape.

3. The pipe connector according to claim 1, characterized in that: A first sealing ring (121) is sleeved on the outer side surface of the dynamic sealing plug (120), and the first sealing ring (121) is in contact with the inner wall of the first blocking section (112).

4. The pipe connector according to claim 1, characterized in that: The outer diameter of the first end of the core rod (230) gradually increases compared to the outer diameter of the middle portion of the core rod (230).

5. The pipe connector according to claim 1, characterized in that: The second end of the core rod (230) is fixedly connected to the second channel (211), and the second end of the core rod (230) is provided with a through hole through which a fluid can pass.

6. The pipe connector according to claim 5, characterized in that: The outer diameter of the second end of the core rod (230) gradually increases compared to the outer diameter of the middle portion of the core rod (230).

7. The pipe connector according to claim 1, characterized in that: An end of the dynamic sealing ring (220) close to the second end of the second channel (211) is provided with an inner chamfer.

8. The pipe connector according to claim 1, characterized in that: A second sealing ring (231) is sleeved on the outer side surface of the end of the core rod (230), and the second sealing ring (231) is in contact with the inner wall of the dynamic sealing ring (220).

9. The pipe connector according to claim 1, characterized in that: The inner wall of the second blocking section (212) is sleeved with a third sealing ring (213), and the third sealing ring (213) is in contact with the outer wall of the dynamic sealing ring (220).

10. The pipe connector according to any one of claims 1 to 9, characterized in that: A convex ball (250) is arranged inside the second channel (211), and a fixing groove (113) is provided on the outside of the plug housing (110), and the convex ball (250) can be inserted into the fixing groove (113) to limit and fix the plug housing (110).

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