Connector and fluid supply assembly

Abstract

The connector comprises a connector male end and a connector female end, the connector male end comprises a first butt-joint pipe and an outer threaded sleeve, the connector female end comprises a second butt-joint pipe and a valve arranged in the second butt-joint pipe, the valve is used for conducting or cutting off the interior of the second butt-joint pipe, and the first butt-joint pipe is connected with the outer threaded sleeve. A first internal thread and a first external thread are arranged at one end of the first butt-joint pipe, a second internal thread matched with the first external thread is arranged on the inner wall of the external thread sleeve, the external thread sleeve is installed on the first butt-joint pipe in a threaded mode, and a second external thread matched with the first internal thread is arranged at one end of the second butt-joint pipe. The pipe wall of the second butt-joint pipe is provided with a sliding hole allowing a trigger rod of the valve to penetrate out in a sealed mode, the first butt-joint pipe and the second butt-joint pipe are in threaded connection, and the valve is adjusted to be in an open or closed state by screwing or unscrewing the outer thread sleeve relative to the first butt-joint pipe. In this way, after the connector male end and the connector female end are in butt joint, the opening and closing states of the valve can be flexibly adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of pipe joint technology, and in particular relates to a connector and fluid supply assembly. Background Technology

[0002] Currently, most pipeline connectors do not have valve functionality. Connectors consist of a male and a female end. After fluid supply is completed and the male and female ends are disconnected, residual fluid upstream of the connector will still flow out. If the fluid is a flammable gas or a polluting liquid, this can lead to safety accidents or pollution incidents. Taking natural gas transportation as an example, document CN219654851U, "A Compressor Gas Replenishment Device," discloses a gas replenishment tank. The outer wall of the gas replenishment tank is fixedly connected to a gas pipeline, and the end of the gas pipeline is fixedly connected to a connector. During installation, the connector at the end of the gas pipeline is first inserted into the gas replenishment port on the outer wall of the compressor. As the connector is inserted, a limiting block exposed on the outer wall of the connector... During the insertion process, the connector is squeezed against the air inlet. The inclined surface of the limiting block is subjected to force, causing the limiting block to squeeze the return spring and retract into the groove. When the connector is fully inserted into the air inlet, the return spring rebounds, taking the limiting block into the groove to limit the position of the connector. The connection is then complete. When disassembly is required, press the pressing plate inward. The pressing plate, along with the lever, presses the return spring downward, causing the limiting block to enter the groove. At this point, the connector can be pulled out for disassembly. Although this structure can ensure that the sealing ring is tightly sealed against the gap of the air inlet to prevent refrigerant backflow, when the air supply is completed and the air inlet pipe is separated from the air inlet pipe, the gas inside the compressor may overflow. This may lead to a decrease in internal pressure, resulting in some gas waste and being detrimental to subsequent use. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a connector with a simple structure that can be switched to an open state after docking, and one end is in a closed state when disconnected.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A connector includes a male end and a female end. The male end includes a first pair of connecting pipes and an external threaded sleeve. The female end includes a second pair of connecting pipes and a valve disposed within the second pair of connecting pipes. The valve is used to open or close the interior of the second pair of connecting pipes. One end of the first pair of connecting pipes is respectively provided with a first internal thread and a first external thread. The inner wall of the external threaded sleeve is provided with a second internal thread that mates with the first external thread. The external threaded sleeve is threadedly installed on the first pair of connecting pipes. One end of the second pair of connecting pipes is provided with a second external thread that mates with the first internal thread. The wall of the second pair of connecting pipes has a sliding hole through which the trigger rod of the valve passes for sealing. The first pair of connecting pipes and the second pair of connecting pipes are threadedly connected by the second external thread and the first internal thread. Loosening the external threaded sleeve relative to the first pair of connecting pipes will compress the trigger rod to move away from the first pair of connecting pipes, thereby opening the valve. Alternatively, tightening the external threaded sleeve relative to the first pair of connecting pipes will release the compression on the trigger rod and close the valve.

[0005] The beneficial effect of the above technical solution is that the first internal thread of the first pair of connecting pipes and the second external thread of the second pair of connecting pipes are threadedly connected. At this time, the valve in the second pair of connecting pipes is still in the closed state. Then, the external thread sleeve is loosened, so that the external thread sleeve moves close to the trigger rod and squeezes the trigger rod to slide away from the first pair of connecting pipes. At this time, the valve in the second pair of connecting pipes is opened. To separate the first pair of connecting pipes and the second pair of connecting pipes, the external thread sleeve must be tightened first. At this time, the valve in the second pair of connecting pipes gradually closes. After the valve is completely closed, the first pair of connecting pipes and the second pair of connecting pipes can be screwed to separate them.

[0006] The valve in the above technical solution has multiple circumferentially spaced trigger rods, and the second pair of connecting pipes has multiple circumferentially spaced sliding holes, with each trigger rod corresponding to one of the multiple sliding holes, and each trigger rod extending out of the second pair of connecting pipes through the corresponding sliding hole.

[0007] The beneficial effect of the above technical solution is that it makes the squeezing force of the external threaded sleeve on multiple valve components relatively balanced in the circumferential direction.

[0008] The valve component described in the above technical solution also includes a trigger ring. The trigger ring is coaxially disposed outside the second pair of connecting pipes, and multiple trigger rods are connected to the trigger ring. When the first pair of connecting pipes and the second pair of connecting pipes are threadedly connected, the outer threaded sleeve is loosened relative to the first pair of connecting pipes to squeeze the trigger ring to move away from the first pair of connecting pipes and open the valve component.

[0009] The beneficial effect of the above technical solution is that it enables multiple trigger rods to be connected to the trigger ring, and the trigger rods are radially distributed relative to the trigger ring, which makes the synchronization of multiple trigger rods during movement better.

[0010] The valve component described in the above technical solution includes a valve plate, a retaining ring, a movable valve core, and multiple elastic elements. The valve plate is coaxially disposed within the second pair of connecting pipes at one end near the second external thread, and a valve hole is provided in the middle of the valve plate. The retaining ring is coaxially disposed within the second pair of connecting pipes at one end away from the second external thread. The movable valve core is coaxially and slidably disposed within the second pair of connecting pipes, and is located between the valve plate and the retaining ring. The trigger rod is disposed on the outside of the movable valve core, and the movable valve core has a flow channel in the middle. Multiple elastic elements are disposed between the retaining ring and the movable valve core. The elastic force of the elastic elements is used to drive the movable valve core to move closer to the valve plate and block the valve hole. When the first pair of connecting pipes and the second pair of connecting pipes are connected, the external thread sleeve is loosened relative to the first pair of connecting pipes to squeeze the trigger rod and drive the movable valve core to move away from the valve plate to open the valve component.

[0011] The beneficial effects of the above technical solution are as follows: its structure is simple, so that when the outer threaded sleeve squeezes multiple trigger rods and drives the movable valve core to move away from the valve plate, the valve is opened. When the outer threaded sleeve is tightened, the outer threaded sleeve gradually releases the squeeze on the trigger rods, and finally causes the movable valve core to seal the valve hole of the valve plate, at which point the valve is closed.

[0012] The movable valve core in the above technical solution includes a sliding sleeve, a partition, a valve stem, and a valve head. The sliding sleeve is coaxially slidably disposed within the second pair of connecting pipes, and the outer wall of the sliding sleeve is in sealing sliding contact with the inner wall of the second pair of connecting pipes, thus sealing the sliding hole. The trigger rod is connected to the outer wall of the sliding sleeve. The partition is a hollow plate and is coaxially disposed at the end of the sliding sleeve away from the valve plate. The valve stem is coaxially disposed within the sliding sleeve, and one end of the stem is fixedly connected to the middle of the partition. The valve head is disposed at the other end of the valve stem and extends out of the sliding sleeve. A plurality of elastic elements are circumferentially spaced between the valve plate and the abutment ring. The movable valve core moves axially within the second pair of connecting pipes to the valve head to seal or open the valve hole.

[0013] The beneficial effects of the above technical solution are that the sliding sleeve and the partition plate together serve as the carriers of the valve stem and valve head, and the sliding sleeve always blocks the sliding hole when it moves in the second pair of pipes to prevent fluid from leaking out through the sliding hole.

[0014] The elastic element described in the above technical solution is a spring.

[0015] The advantages of the above technical solution are that it has a simple structure and good durability.

[0016] In the above technical solution, the abutment ring is recessed on the side near the movable valve core, providing a limiting groove for the corresponding end of the elastic element to be inserted.

[0017] The beneficial effect of the above technical solution is that it can prevent the elastic element from shifting between the abutment ring and the movable valve core.

[0018] In the above technical solution, a flexible pad is provided on the side of the valve plate near the movable valve core.

[0019] The beneficial effect of the above technical solution is that it makes the valve head on the valve plate better at sealing the valve hole.

[0020] In the above technical solution, the inner hole of the flexible pad is funnel-shaped, and its thick end faces the abutment ring. The valve head is frustoconical and it matches the inner hole of the flexible pad.

[0021] The beneficial effects of the above technical solution are that it allows for a better fit between the valve head and the inner hole of the flexible pad, and enables the valve head to better seal the valve hole.

[0022] To achieve the above objectives, another technical solution of this utility model is as follows: a fluid supply assembly, comprising two pipes and a connector as described above, wherein the two pipes are connected through the connector.

[0023] The beneficial effects of the above technical solution are as follows: when fluid is transported, after the male and female ends of the connector are connected, the valve can be flexibly adjusted to be in the open or closed state by moving the outer threaded sleeve. When the male and female ends of the connector need to be separated, the valve can be pre-closed. Attached Figure Description

[0024] Figure 1 This is an elevation view of the male and female ends of the connector when they are detached in Embodiment 1 of this utility model.

[0025] Figure 2 This is an elevation view of the valve in Embodiment 1 of this utility model when the male end of the connector is connected to the female end of the connector and the valve is in the closed state.

[0026] Figure 3 This is an elevation view of the valve in the open state when the male end of the connector is connected to the female end of the connector in Embodiment 1 of this utility model.

[0027] Figure 4 This is a cross-sectional view of the male end of the connector and the female end of the connector when they are separated in Embodiment 1 of this utility model;

[0028] Figure 5 This is a front view of the abutment ring described in Embodiment 1 of this utility model;

[0029] Figure 6 This is a schematic diagram of the fluid supply assembly described in Embodiment 2 of this utility model.

[0030] In the diagram: 100, connector; 1, male connector end; 11, first connecting pipe; 111, first internal thread; 112, first external thread; 12, external thread sleeve; 121, second internal thread; 2, female connector end; 21, second connecting pipe; 211, second external thread; 212, sliding hole; 22, valve component; 221, valve plate; 2211, valve hole; 2212, flexible gasket; 222, abutment ring; 2221, limiting groove; 223, movable valve core; 2231, sliding sleeve; 2232, partition plate; 2233, valve stem; 2234, valve head; 224, elastic element; 225, trigger rod; 226, trigger ring; 200, pipe. Detailed Implementation

[0031] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0032] like Figures 1-5As shown, this embodiment provides a connector, including a male connector 1 and a female connector 2. The male connector 1 includes a first connecting tube 11 and an external threaded sleeve 12. The female connector 2 includes a second connecting tube 21 and a valve 22 disposed within the second connecting tube 21. The valve 22 is used to open or close the interior of the second connecting tube 21. One end of the first connecting tube 11 is respectively provided with a first internal thread 111 and a first external thread 112. The inner wall of the external threaded sleeve 12 is provided with a second internal thread 121 that mates with the first external thread 112. The external threaded sleeve 12 is threadedly installed on the first connecting tube 11. One end of the second connecting tube 21 is provided with a second external thread 211 that mates with the first internal thread 111. The tube wall of the second connecting tube 21 has a sliding hole 212 through which the trigger rod 225 of the valve 22 passes. The first connecting tube 11 and the second connecting tube 21 are connected by the first internal thread 111 and the external thread 22. The two external threads 211 and the first internal thread 111 are threaded together. The external thread sleeve 12 is loosened relative to the first connecting pipe 11 to squeeze the trigger rod 225 away from the first connecting pipe 11, thereby opening the valve 22. Alternatively, the external thread sleeve 12 is tightened relative to the first connecting pipe 11 to release the squeeze on the trigger rod 225 and close the valve 22. This makes the first internal thread of the first connecting pipe and the second external thread on the second connecting pipe threaded together. At this time, the valve in the second connecting pipe is still in the closed state. Then, the external thread sleeve is loosened to move the external thread sleeve close to the trigger rod and squeeze the trigger rod to slide away from the first connecting pipe. At this time, the valve in the second connecting pipe is opened. To separate the first connecting pipe and the second connecting pipe, the external thread sleeve must be tightened first. At this time, the valve in the second connecting pipe gradually closes. After the valve is completely closed, the first connecting pipe and the second connecting pipe can be screwed to separate them.

[0033] like Figures 1-4As shown, the valve 22 in the above technical solution has multiple circumferentially spaced trigger rods 225, and the second connecting pipe 21 has multiple circumferentially spaced sliding holes 212. Each trigger rod 225 corresponds one-to-one with a sliding hole 212, and each trigger rod 225 extends out of the second connecting pipe 21 through the corresponding sliding hole 212. This ensures that the multiple valve components are subjected to a relatively balanced circumferential squeezing force from the outer threaded sleeve. Preferably, the valve 22 further includes a trigger ring 226, which is coaxially disposed outside the second connecting pipe 21. All trigger rods 225 are connected to the trigger ring 226. When the first connecting pipe 11 and the second connecting pipe 21 are threaded together, the outer threaded sleeve 12 is loosened relative to the first connecting pipe 11 to compress the trigger ring 226, moving it away from the first connecting pipe 11 and opening the valve 22. This ensures that all trigger rods are connected to the trigger ring, and that the trigger rods are radially distributed relative to the trigger ring, resulting in better synchronization during movement.

[0034] like Figure 4 and Figure 5 As shown, the valve component 22 in the above technical solution includes a valve plate 221, an abutment ring 222, a movable valve core 223, and multiple elastic elements 224. The valve plate 221 is coaxially disposed within the second connecting pipe 21 at one end near the second external thread 211. A valve hole 2211 is provided in the middle of the valve plate 221. The abutment ring 222 is coaxially disposed within the second connecting pipe 21 at one end away from the second external thread 211. The movable valve core 223 is coaxially and slidably disposed within the second connecting pipe 21 and located between the valve plate 221 and the abutment ring 222. The trigger rod 225 is disposed on the outside of the movable valve core 223. The movable valve core 223 has a flow channel in the middle. The multiple elastic elements 224 are disposed on... Between the abutment ring 222 and the movable valve core 223, the elastic force of the elastic element 224 drives the movable valve core 223 to move closer to the valve plate 221 and block the valve hole 2211. When the first connecting pipe 11 and the second connecting pipe 21 are connected, the outer threaded sleeve 12 is loosened relative to the first connecting pipe 11 to squeeze the trigger rod 225 and drive the movable valve core 223 to move away from the valve plate 221 to open the valve 22. Its structure is simple. In this way, when the outer threaded sleeve squeezes multiple trigger rods and drives the movable valve core to move away from the valve plate, the valve is opened. When the outer threaded sleeve is tightened, the outer threaded sleeve gradually releases the squeeze on the trigger rod and finally causes the movable valve core to block the valve hole of the valve plate, at which point the valve is closed.

[0035] like Figure 4 and Figure 5As shown, the movable valve core 223 in the above technical solution includes a sliding sleeve 2231, a partition plate 2232, a valve stem 2233, and a valve head 2234. The sliding sleeve 2231 is coaxially slidably disposed within the second connecting pipe 21, and the outer wall of the sliding sleeve 2231 is in sealing sliding contact with the inner wall of the second connecting pipe 21, sealing the sliding hole 212. The trigger rod 225 is connected to the outer wall of the sliding sleeve 2231. The partition plate 2232 is a hollow plate and is coaxially disposed at the end of the sliding sleeve 2231 away from the valve plate 221. The valve stem 2233 is coaxially disposed within the sliding sleeve 2231. The valve head 2234 is located at the other end of the valve stem 2233 and extends out of the sliding sleeve 2231. A plurality of elastic elements 224 are arranged circumferentially between the valve plate 221 and the abutment ring 222. The movable valve core 223 moves axially within the second pair of connecting pipes 21 to the valve head 2234 to block or open the valve hole 2211. In this way, the sliding sleeve and the partition plate together serve as the carriers of the valve stem and the valve head. The sliding sleeve always blocks the sliding hole when it moves within the second pair of connecting pipes to prevent fluid from leaking out through the sliding hole.

[0036] The elastic element 224 in the above technical solution is a spring, which has a simple structure and good durability.

[0037] In the above technical solution, the abutment ring 222 is recessed on the side near the movable valve core 223, and a limiting groove 2221 is provided for the corresponding end of the elastic element 224 to be inserted. This can prevent the elastic element from shifting between the abutment ring and the movable valve core (the number of limiting grooves 2221 is consistent with the number of elastic elements and corresponds one-to-one).

[0038] In the above technical solution, a flexible pad 2212 is provided on the side of the valve plate 221 near the movable valve core 223. This makes the valve head on the valve plate better at sealing the valve hole. Preferably, the inner hole of the flexible pad 2212 is funnel-shaped, and its thick end faces the abutment ring 222. The valve head is frustoconical and matches the inner hole of the flexible pad 2212. This makes the valve head and the inner hole of the flexible pad fit better and allows the valve head to better seal the valve hole.

[0039] In this embodiment, the sliding sleeve inside the second pair of connecting pipes is similar to a piston with a flow channel in the middle. When it slides along the axial direction of the second pair of connecting pipes, it can always cover the multiple sliding holes to a sealed state.

[0040] In this embodiment, the partition, sliding sleeve, valve stem, and valve head can be integrally formed. The partition is a perforated plate, and the holes on it and the area inside the sliding sleeve together form a flow channel.

[0041] In this embodiment, both the valve plate and the abutment ring can be integrally formed with the second connecting pipe.

[0042] Example 2

[0043] like Figure 6 As shown, this embodiment provides a fluid supply assembly, including two pipes 200 and a connector 100 as described in Embodiment 1. The two pipes 200 are connected via the connector 100. This allows for flexible adjustment of the valve to an open or closed state by moving the external threaded sleeve after the male and female ends of the connector are connected during fluid transport. Conversely, the valve can be pre-closed when the male and female ends of the connector need to be separated. The fluid in this embodiment can be gas or liquid. The flow direction of the fluid within the fluid supply assembly can be from the male end to the female end of the connector, or from the female end to the male end, depending on the specific needs.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A connector, comprising a male connector end (1) and a female connector end (2), characterized in that, The male end (1) of the connector includes a first connecting pipe (11) and an external threaded sleeve (12). The female end (2) of the connector includes a second connecting pipe (21) and a valve (22) disposed within the second connecting pipe (21). The valve (22) is used to open or close the interior of the second connecting pipe (21). One end of the first connecting pipe (11) is respectively provided with a first internal thread (111) and a first external thread (112). The inner wall of the external threaded sleeve (12) is provided with a second internal thread (121) that mates with the first external thread (112). The external threaded sleeve (12) is threadedly installed on the first connecting pipe (11). One end of the second connecting pipe (21) is provided with a second internal thread (121) that mates with the first internal thread (111). 11) A matching second external thread (211) The second connecting pipe (21) has a sliding hole (212) on its wall for the trigger rod (225) of the valve (22) to pass through in a sealed manner. The first connecting pipe (11) and the second connecting pipe (21) are threadedly connected by the second external thread (211) and the first internal thread (111). Loosening the external thread sleeve (12) relative to the first connecting pipe (11) can squeeze the trigger rod (225) to move away from the first connecting pipe (11) to open the valve (22), or tightening the external thread sleeve (12) relative to the first connecting pipe (11) can release the squeeze on the trigger rod (225) and close the valve (22).

2. The connector according to claim 1, characterized in that, The valve (22) has a plurality of circumferentially spaced trigger rods (225), and the second pair of connecting pipes (21) has a plurality of circumferentially spaced sliding holes (212), and the plurality of trigger rods (225) correspond one-to-one with the plurality of sliding holes (212), and each trigger rod (225) extends out of the second pair of connecting pipes (21) through the corresponding sliding hole (212).

3. The connector according to claim 2, characterized in that, The valve (22) also includes a trigger ring (226), which is coaxially disposed outside the second connecting pipe (21), and a plurality of trigger rods (225) are connected to the trigger ring (226). When the first connecting pipe (11) and the second connecting pipe (21) are threadedly connected, the outer threaded sleeve (12) is loosened relative to the first connecting pipe (11) to squeeze the trigger ring (226) to move away from the first connecting pipe (11) and open the valve (22).

4. The connector according to claim 1, characterized in that, The valve component (22) includes a valve plate (221), an abutment ring (222), a movable valve core (223), and multiple elastic elements (224). The valve plate (221) is coaxially disposed within the second connecting pipe (21) at one end near the second external thread (211). A valve hole (2211) is provided in the middle of the valve plate (221). The abutment ring (222) is coaxially disposed within the second connecting pipe (21) at one end away from the second external thread (211). The movable valve core (223) is coaxially and slidably disposed within the second connecting pipe (21) and located between the valve plate (221) and the abutment ring (222). The trigger rod (225) is disposed within the movable valve core. On the outside of the movable valve core (223), the middle part of the movable valve core (223) has a flow passage. A plurality of elastic elements (224) are disposed between the abutment ring (222) and the movable valve core (223). The elastic force of the elastic elements (224) is used to drive the movable valve core (223) to move closer to the valve plate (221) and block the valve hole (2211). When the first connecting pipe (11) and the second connecting pipe (21) are connected, the outer threaded sleeve (12) is loosened relative to the first connecting pipe (11) to squeeze the trigger rod (225) and drive the movable valve core (223) to move away from the valve plate (221) to open the valve (22).

5. The connector according to claim 4, characterized in that, The movable valve core (223) includes a sliding sleeve (2231), a partition plate (2232), a valve stem (2233), and a valve head (2234). The sliding sleeve (2231) is coaxially slidably disposed within the second pair of connecting pipes (21), and the outer wall of the sliding sleeve (2231) is in sealing sliding contact with the inner wall of the second pair of connecting pipes (21) and blocks the sliding hole (212). The trigger rod (225) is connected to the outer wall of the sliding sleeve (2231). The partition plate (2232) is a hollow plate and is coaxially disposed on the sliding sleeve (2231) away from the valve plate (2234). 1) At one end, the valve stem (2233) is coaxially placed inside the sliding sleeve (2231), and one end of it is fixedly connected to the middle of the partition plate (2232). The valve head (2234) is disposed at the other end of the valve stem (2233) and extends out of the sliding sleeve (2231). A plurality of elastic elements (224) are arranged circumferentially between the valve plate (221) and the abutment ring (222). The movable valve core (223) moves axially within the second connecting pipe (21) to the valve head (2234) to block or open the valve hole (2211).

6. The connector according to claim 5, characterized in that, The elastic element (224) is a spring.

7. The connector according to claim 5, characterized in that, The abutment ring (222) has a recessed limiting groove (2221) on the side near the movable valve core (223) for the corresponding end of the elastic element (224) to be inserted.

8. The connector according to claim 5, characterized in that, A flexible pad (2212) is provided on the side of the valve plate (221) near the movable valve core (223).

9. The connector according to claim 8, characterized in that, The inner hole of the flexible pad (2212) is funnel-shaped, and its thick end faces the abutment ring (222). The valve head is frustoconical and it mates with the inner hole of the flexible pad (2212).

10. A fluid delivery assembly, characterized in that, It includes two pipes (200) and a connector (100) as described in any one of claims 1-9, the two pipes (200) being connected via the connector (100).

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