Push-down rotary connector

Abstract

The utility model discloses a kind of down-pressing type rotary connectors, the connector includes main body, main body is equipped with non fast port and at least one fast port, non fast port is movably connected with shell by rotating connection structure, the inner wall of shell close to rotating connection part and the inner wall of main body close to fast port are respectively equipped with first sealing groove and second sealing groove, first sealing groove and second sealing groove are all matched with sealing element, the fast port space of main body close to second sealing groove is equipped with inner ring cover, outer ring cover is sleeved in the fast port outside shell port in the outer side of inner ring cover, snap ring is equipped between inner ring cover and outer ring cover, the end portion of shell away from rotating connection structure is equipped with screw portion, based on shell can rotate in the port of main body, when screwing into external threaded interface, main body does not need to deflect, swing, and fast port does not need to remove external pipeline, can easily realize threaded connection, and the space required for operation is small, and easily simple.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, specifically a pressure-type rotary connector. Background Technology

[0002] Connectors are commonly used pipe connection devices, and are generally used in heating pipes, tap water pipes, gas pipes and other fields. They are usually installed in spacious locations.

[0003] However, when connectors are used for pipe connections inside equipment such as air compressors and hydraulic equipment, especially when the pipe structure needs to be reversed when entering the equipment from the outside, if a connector with a one-piece shell is used, after the connector is installed in the equipment and tightened, the direction of the connector port may not correspond to the position of the pipe entering the equipment from the outside. On the other hand, if the pipe is connected to the connector first and then installed on the equipment, the pipe cannot move freely inside the equipment due to the limited space inside the equipment, making it difficult to connect the pipe with the connector inside the equipment. Moreover, the limited space inside the equipment places high demands on the size and sealing performance of the connector, so the connector structure used in equipment still needs improvement. Utility Model Content

[0004] To address the technical deficiencies in the background technology, this utility model proposes a pressure-type rotary connector, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0005] A push-down rotary connector includes a body with a non-quick-connect port and at least one quick-connect port. The non-quick-connect port is movably connected to a housing via a rotary connection structure. The inner wall of the housing near the rotary connection and the inner wall of the body near the quick-connect port are respectively provided with a first sealing groove and a second sealing groove. Both the first and second sealing grooves are fitted with sealing elements. An inner ring cover is provided in the quick-connect port space near the second sealing groove of the body. An outer ring cover is provided in the quick-connect port outside the inner ring cover and sleeved on the outer port of the housing. A claw ring is provided between the inner ring cover and the outer ring cover. The claw ring has several claws in the middle. An unlocking element is fitted inside the outer ring cover. A threaded portion is provided at the end of the housing away from the rotary connection structure.

[0006] As a further embodiment of this utility model, the rotary connection structure includes a first protruding edge and a first groove. The outer wall of the non-quick-connect port is provided with a first protruding edge with a wedge-shaped cross-section. The port of the housing away from the threaded part is provided with a first groove with the same cross-sectional shape as the first protruding edge. The first groove is located in the housing in the direction from the first sealing groove to the end where the threaded part is located. The main body is movably connected to the housing through the cooperation of the first protruding edge and the first groove. The first protruding edge and the inner wall of the housing outside the first groove form a snap-fit ​​structure. The outer wall of the main body outside the first protruding edge is provided with a first limiting groove. The first limiting groove is located outside the seal and together with the first sealing groove, it surrounds the seal.

[0007] As a further embodiment of the present invention, the inner wall of the housing between the first groove and the first sealing groove is provided with a first chamfer, the first chamfer being located outside the first sealing groove, the inner wall of the housing near the port of the first sealing groove is provided with a second chamfer, and the outer wall of the main body located outside the first limiting groove is provided with a second groove, the second chamfer being located inside the second groove.

[0008] As a further embodiment of this utility model, the rotary connection structure includes a second protruding edge and a third groove. The outer wall of the non-quick-connect port is provided with a second protruding edge with a wedge-shaped cross-section. The port of the housing away from the threaded part is provided with a third groove with the same cross-sectional shape as the second protruding edge. The third groove is located in the housing in the direction from the first sealing groove to the end of the housing where the non-threaded part is located. The second protruding edge is engaged with the third groove to form a snap-fit ​​engagement. The main body is movably connected to the housing through the engagement of the second protruding edge and the third groove. The main body end outside the second protruding edge is located inside the first sealing groove and forms an enclosure with the first sealing groove for the sealing element.

[0009] As a further embodiment of the present invention, the outer wall of the main body on the outer side of the second convex edge is provided with a second limiting groove, and the inner wall of the port of the shell near the third groove is provided with a third chamfer, and the shell part where the third chamfer is located fits into the second limiting groove.

[0010] As a further embodiment of this utility model, the outer ring cover has an n-shaped cross-section, and the portion between the outer and inner edges is a groove. The groove has several wedge-shaped protrusions circumferentially arranged on the wall surface near the outer edge of the outer ring cover. The outer wall of the main body near the quick-connect port has a third protruding edge, and a fourth groove is provided in the third protruding edge. The outer ring cover is sleeved on the outer end of the main body near the quick-connect port through the cooperation of the protrusions and the fourth groove. The protrusions cooperate with the fourth groove to form a snap-fit ​​cooperation. The end of the third protruding edge outside the fourth groove has a fourth chamfer. The inner ring cover is located outside the second sealing groove and has a fifth groove on its outer wall. The inner edge of the outer ring cover is fitted into the fifth groove and presses the inner ring cover tightly against the inner wall of the main body outside the second sealing groove. The outer ring cover has several first through holes circumferentially arranged on the end away from the inner ring cover. The unlocking member is fitted on the inner side of the inner edge of the outer ring cover.

[0011] As a further embodiment of this utility model, the outer wall of the unlocking member is provided with a fourth protruding edge with a wedge-shaped cross-section, and the inner wall of the outer ring cover is provided with a sixth groove. The unlocking member is movably connected to the second groove through the fourth protruding edge to achieve cooperation with the outer ring cover. One end of the unlocking member is provided with a fifth protruding edge extending radially along the unlocking member. The end of the unlocking member away from the fifth protruding edge abuts against the claw ring. The surfaces of the second through hole ports in the middle of the unlocking member and the outer ring cover are respectively provided with a first rounded corner and a second rounded corner.

[0012] As a further embodiment of this utility model, the claw is inclined relative to the central axis of the claw ring, the outer edge of the claw ring is provided with several notches in the circumferential direction, the cross-sectional shape of the unlocking member at the end away from the fourth convex edge is wedge-shaped, the end face of the outer edge of the claw ring and the inner wall surface of the outer ring cover pressed against the clamping ring are parallel to each other, and the end face of the outer edge of the claw ring and the end face of the inner ring cover pressed against the clamping ring are not parallel to each other.

[0013] As a further embodiment of this utility model, the projection of the portion of the housing other than the threaded portion onto a plane perpendicular to the housing axis is a polygon.

[0014] As a further embodiment of this utility model, the threaded portion is an external thread provided at the end of the housing away from the rotating connection structure or an internal thread provided at the end of the housing away from the rotating connection structure.

[0015] The beneficial effects of this utility model are as follows: Based on the connection between the main body and the shell in the connector through a rotary connection structure, the shell can rotate freely about the axis of the port of the main body. When the connector is screwed into the external threaded interface with its threaded part, the main body does not need to deflect or swing. The quick-connect port of the connector does not need to be removed from the external pipeline, and the threaded connection can be easily achieved. This makes the shell part have a connection effect similar to a swivel nut. The operation requires little space and is easy and simple, making it suitable for pipeline connection in narrow spaces inside equipment. At the same time, the part of the connector that is not in the shell can be quickly connected to the external pipeline through different shapes and quick-connect ports of the main body, which can meet the needs of different scenarios. Moreover, the installation and removal of pipelines and quick-connect ports is simple. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the connector near the quick-connect port.

[0017] Figure 2 This is a schematic diagram of the external structure of the connector near the threaded part.

[0018] Figure 3 This is a schematic diagram of the internal structure of the connector in Embodiment 1.

[0019] Figure 4 This is a schematic diagram of the structure of the housing near the threaded end in Embodiment 1.

[0020] Figure 5 This is a schematic diagram of the main structure in Example 1.

[0021] Figure 6 This is a schematic diagram of the structure of the end of the housing away from the threaded part.

[0022] Figure 7 This is a schematic diagram of the outer ring cover.

[0023] Figure 8 This is a schematic diagram of the inner ring cover.

[0024] Figure 9 This is a structural diagram of the unlocking component.

[0025] Figure 10 This is a schematic diagram of the chuck ring structure.

[0026] Figure 11 This is a schematic diagram of the threaded portion when an external thread is used.

[0027] Figure 12 This is a schematic diagram of the threaded portion when internal threads are used.

[0028] Figure 13 This is a schematic diagram of the internal structure of the connector in Embodiment 2.

[0029] Figure 14 This is a schematic diagram of the structure of the shell near the threaded end in Embodiment 2.

[0030] Figure 15 This is a schematic diagram of the main structure in Example 2.

[0031] In the diagram, 1. Main body; 11. Quick-connect port; 12. Second sealing groove; 13. First protruding edge; 14. First limiting groove; 15. Second recessed groove; 16. Second protruding edge; 17. Second limiting groove; 18. Third protruding edge; 181. Fourth recessed groove; 182. Fourth chamfer; 19. Non-quick-connect port; 2. Housing; 21. First sealing groove; 22. First recessed groove; 23. First chamfer; 24. Second chamfer; 25. Third recessed groove; 26. Third chamfer; 3. Seal; 4. Inner ring cover; 41. Fifth recessed groove; 5. Outer ring cover; 51. Groove; 52. Protrusion; 53. First through hole; 54. Sixth recessed groove; 55. Second rounded corner; 6. Claw ring; 61. Claw; 62. Notch; 7. Unlocking component; 71. Fourth protruding edge; 72. Fifth protruding edge; 73. First rounded corner; 8. Threaded part; 81. External thread; 82. Internal thread. Detailed Implementation

[0032] Example 1:

[0033] This embodiment discloses a pressure-type rotary connector, such as... Figure 1 , Figure 2 , Figure 3 and Figure 12 As shown, the main body 1 has a non-quick-connect port 19 and at least one quick-connect port 11. The non-quick-connect port 19 is movably connected to the housing 2 via a rotary connection structure. The inner wall of the housing 2 near the rotary connection and the inner wall of the main body 1 near the quick-connect port 11 are respectively provided with a first sealing groove 21 and a second sealing groove 12. Both the first sealing groove 21 and the second sealing groove 12 are fitted with sealing elements 3. An inner ring cover 4 is provided in the space of the quick-connect port 11 near the second sealing groove 12 of the main body 1. An outer ring cover 5 is provided in the quick-connect port 11 outside the inner ring cover 4 and sleeved on the outside of the port of the housing 2. A claw ring 6 is provided between the inner ring cover 4 and the outer ring cover 5. The claw ring 6 has several claws 61 in the middle. An unlocking element 7 is fitted inside the outer ring cover 5. A threaded part 8 is provided at the end of the housing 2 away from the rotary connection structure.

[0034] It should be noted that when using this connector, first insert the pipe into the quick-connect port 11, then use the claw ring 6 to fix the pipe to the quick-connect port 11 of the connector, and then connect it to the external device through the threaded part 8. The connection is achieved through a rotary connection structure, allowing the housing 2 to rotate freely around the axis of the port of the main body 1. When the connector is screwed into the external threaded interface through the threaded part 8, the connector body 1 does not need to deflect or swing, and the quick-connect port 11 of the connector does not need to remove the external pipe, thus easily achieving a threaded connection. The external part of the connector has a connection effect similar to a swivel nut, requiring little space for operation and being easy and convenient, making it suitable for pipe connections in narrow spaces within equipment; the connector connects through the first... The sealing groove 21 and the second sealing groove 12, together with the sealing structure of the sealing element 3, can seal and protect the connection position of the component where the quick-connect port 11 is located and the connection position of the rotary connection structure, thereby enhancing the sealing performance of the connector. The main body 1 connected to the housing 2 can be shaped like an elbow, straight, tee, or other angles, used to reverse the direction of the fluid medium transmitted to or from the housing 2. When it is necessary to remove the pipe in the connector, the claw 61 on the claw ring 6 can be squeezed by directly pressing the unlocking element 7, so that the claw 61 is no longer stuck on the outer wall of the pipe, thereby unlocking the pipe in the connector and pulling the pipe out of the quick-connect port 11. The installation and removal of the pipe on the connector is simple.

[0035] It needs to be further explained that, such as Figures 3-5 As shown, the rotary connection structure includes a first protruding edge 13 and a first groove 22. The outer wall of the non-quick-connect port 19 is provided with a first protruding edge 13 with a wedge-shaped cross-section. The port of the housing 2 away from the threaded part 8 is provided with a first groove 22 with the same cross-sectional shape as the first protruding edge 13. The first groove 22 is located in the housing 2 in the direction from the first sealing groove 21 to the end where the threaded part 8 is located. The main body 1 is movably connected to the housing 2 through the cooperation of the first protruding edge 13 and the first groove 22. The first protruding edge 13 and the inner wall of the housing 2 outside the first groove 22 form a snap-fit ​​structure. The outer wall of the main body 1 outside the first protruding edge 13 is provided with a first limiting groove 14. The first limiting groove 14 is located outside the sealing member 3 and together with the first sealing groove 21 surrounds the sealing member 3.

[0036] When assembling the housing 2 to the main body 1, the housing 2 is inserted along the axial direction of the port of the main body 1. During the insertion process, the first protruding edge 13 guides the main body 1 to enter the housing 2 more easily. The assembly operation of the housing 2 is simple. Moreover, the housing 2 rotates with the central axis of the port of the main body 1 it is connected to as the rotation center, and performs a rotational action relative to the housing 2. This allows the connector to achieve the effect of operating only the housing 2 to make it move while keeping the position of the main body 1 unchanged. When the position of the rotating connection structure is under pressure during the use of the connector, the flat end face of one end of the first protruding edge 13 and the first groove 22 will abut together, so that the main body 1 and the housing 2 form a snap-fit ​​fit. The connection between the main body 1 and the housing 2 is tight during use. After the main body 1 is assembled to the housing 2, the first limiting groove 14 and the first sealing groove 21 together form a surround for the sealing element 3, thereby fixing the position of the sealing element 3 in the first sealing groove 21, which helps to maintain the seal of the sealing element 3 at the connection position between the main body 1 and the housing 2.

[0037] Specifically, such as Figures 3-5 As shown, the inner wall of the housing 2 between the first groove 22 and the first sealing groove 21 is provided with a first chamfer 23, which is located outside the first sealing groove 21. The inner wall of the housing 2 near the port of the first sealing groove 21 is provided with a second chamfer 24. The outer wall of the main body 1 located outside the first limiting groove 14 is provided with a second groove 15, and the second chamfer 24 is located inside the second groove 15.

[0038] When the housing 2 is assembled to the main body 1, the oblique movement of the first chamfer 23 and the first protruding edge 13 guides the housing 2 to enter from the port of the main body 1, thereby making the housing 2 fit better into the port of the main body 1 near the first protruding edge 13 and form a connection with the main body 1; while the setting of the second chamfer 24 makes it easier to align the seal 3 with the port of the housing 2 when it is installed into the first sealing groove 21, thereby making it easier to install the seal 3 into the first sealing groove 21.

[0039] It needs to be further explained that, such as Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the outer ring cover 5 has an n-shaped cross-section, with the portion between the outer and inner edges forming a groove 51. The groove 51 has several wedge-shaped protrusions 52 circumferentially arranged on its wall surface near the outer edge of the outer ring cover 5. The outer wall of the main body 1 near the quick-connect port 11 has a third protruding edge 18, within which a fourth groove 181 is formed. The outer ring cover 5 is fitted onto the outer end of the main body 1 near the quick-connect port 11 through the engagement of the protrusions 52 and the fourth groove 181. The outer ring cover 5 is fitted into the fourth groove 181 to form a snap-fit. The third protruding edge 18 on the outer side of the fourth groove 181 is provided with a fourth chamfer 182. The inner ring cover 4 is located outside the second sealing groove 12 and has a fifth groove 41 on its outer wall. The inner edge of the outer ring cover 5 fits into the fifth groove 41 and presses the inner ring cover 4 against the inner wall of the main body 1 outside the second sealing groove 12. The outer ring cover 5 has several first through holes 53 circumferentially provided on the end away from the inner ring cover 4. The unlocking member 7 fits into the inner side of the inner edge of the outer ring cover 5.

[0040] When assembling the outer ring cover 5 to the quick-connect port 11 of the main body 1, the outer ring cover 5 is inserted along the axial direction of the quick-connect port 11. During the insertion process, the third protruding edge 18 of the fourth chamfer 182 guides the movement of the outer ring cover 5 in the quick-connect port 11 more smoothly. After the third protruding edge 18 enters the fourth groove 181, the outer ring cover 5 is assembled on the main body 1, and the assembly operation is simple. Moreover, after the outer ring cover 5 is assembled to the main body 1, the end of the outer ring cover 5 that fits into the fifth groove 41 pushes the inner ring cover 4 against the inner wall of the main body 1 outside the second sealing groove 12, thereby positioning the inner ring cover 4 and also positioning the sealing element 3 in the second sealing groove 12. In addition, the setting of the first through hole 53 ensures that the deformation generated when the outer ring cover 5 is assembled into the quick-connect port 11 will not affect the stability of the outer ring cover 5 structure, and avoids cracking of the outer ring cover 5.

[0041] Specifically, such as Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the outer wall of the unlocking member 7 is provided with a fourth protruding edge 71 with a wedge-shaped cross-section, and the inner wall of the outer ring cover 5 is provided with a sixth groove 54. The unlocking member 7 is movably connected to the second groove 15 through the fourth protruding edge 71 to achieve cooperation with the outer ring cover 5. One end of the unlocking member 7 is provided with a fifth protruding edge 72 extending radially along the unlocking member 7. The end of the unlocking member 7 away from the fifth protruding edge 72 abuts against the claw ring 6. The surfaces of the second through hole ports in the middle of the unlocking member 7 and the outer ring cover 5 are respectively provided with a first rounded corner 73 and a second rounded corner 55.

[0042] When the unlocking component 7 is assembled into the outer ring cover 5, it is inserted along the axial direction of the outer ring cover 5. During the insertion process, the shape of the fourth protrusion 71 acts as a guide, making it easier for the unlocking component 7 to enter the outer ring cover 5. After the fourth protrusion 71 enters the sixth groove 54, one end of the unlocking component 7 engages with the space inside the sixth groove 54 of the outer ring cover 5, and one end of the unlocking component 7 abuts against the claw ring 6. Combined with the limiting effect of the sixth groove 54 on the fourth protrusion 71, the movement of the unlocking component 7 within the outer ring cover 5 is restricted, thereby achieving the assembly of the unlocking component 7. The assembly of the unlocking component 7 also involves operation. Simple; the fifth protruding edge 72 can extend the end of the unlocking member 7, so that the end of the unlocking member 7 has a larger contact area for people to push the unlocking member 7 to move along the axis of the outer ring cover 5; when the unlocking member 7 is installed into the outer ring cover 5 along the axis of the outer ring cover 5, the fourth protruding edge 71 obliquely slides on the second rounded corner 55 to form a guide, so that the alignment of the unlocking member 7 at the port of the outer ring cover 5 is more accurate, and the operation of the unlocking member 7 entering the outer ring cover 5 is smoother; while the setting of the first rounded corner 73 can make the alignment operation of the pipe when entering the unlocking member 7 from the port of the unlocking member 7 easier, making it easier for the pipe to enter the unlocking member 7.

[0043] More specifically, such as Figure 3 and Figure 10 As shown, the claw 61 is inclined relative to the central axis of the claw ring 6, and the outer edge of the claw ring 66 is provided with several notches 62 in the circumferential direction. The cross-sectional shape of the end of the unlocking member 7 away from the fourth protrusion 71 is wedge-shaped. The end face of the outer edge of the claw ring 66 and the inner wall surface of the outer ring cover 5 pressed against the clamping ring are parallel to each other. The end face of the outer edge of the claw ring 6 and the end face of the inner ring cover 4 pressed against the clamping ring are not parallel to each other.

[0044] When the unlocking component 7 moves along the axial direction of the embedded positioning end cap, the end of the unlocking component 7 away from the fourth protrusion 71 contacts the claw 61. The shape of this end allows the claw 61 to swing outward better, so that it is no longer squeezed against the outer wall of the pipe, thereby unlocking the pipe. The notch 62 can make the claw ring 6 itself more resilient, avoiding the situation of the outer edge of the claw ring 6 breaking. After the outer edge of the claw ring 6 is pressed by the inner wall of the outer ring cap 5, the middle part of the claw ring 6 will form a raised state in the direction of the connector axis, so that the inner position of the claw ring 6 clamping the pipe can be closed as much as possible in the natural state, thereby strengthening the clamping effect on the pipe and improving the fixing effect of the pipe.

[0045] It needs to be further explained that, such as Figure 1 and Figure 2 As shown, the projection of the portion of the housing 2, excluding the threaded portion 8, onto a plane perpendicular to the axis of the housing 21 is a polygon.

[0046] The shape of the housing 2, excluding the threaded portion 8, facilitates tool fitting, allowing for easy connection of the connector by pulling it with a tool during installation.

[0047] Specifically, such as Figure 11 and Figure 12 As shown, the threaded portion 8 is an external thread 81 provided at the end of the housing 2 away from the rotary connection structure or an internal thread 82 provided at the end of the housing 2 away from the rotary connection structure.

[0048] The connector is attached to the housing 2 except for the threaded part 8 using a tool, and then the entire connector is rotated by pulling the tool. The threaded part 8 is then used to connect to other pipe connectors or pipes, so that the external end of the connector can be adapted to different thread structures to facilitate the external connection operation of the connector.

[0049] Example 2:

[0050] The difference between this embodiment and Embodiment 1 is that, as Figures 13-15 As shown, the rotary connection structure includes a second protruding edge 16 and a third groove 25. The outer wall of the non-quick-connect port 19 is provided with a second protruding edge 16 with a wedge-shaped cross-section. The port of the housing 2 away from the threaded part 8 is provided with a third groove 25 with the same cross-sectional shape as the second protruding edge 16. The third groove 25 is located in the housing 2 in the direction from the first sealing groove 21 to the end of the housing 2 where the non-threaded part 8 is located. The second protruding edge 16 is engaged with the third groove 25 to form a snap-fit ​​fit. The main body 1 is movably connected to the housing 2 through the engagement of the second protruding edge 16 and the third groove 25. The end of the main body 1 outside the second protruding edge 16 is located inside the first sealing groove 21 and forms an enclosure with the first sealing groove 21 around the sealing element 3.

[0051] It should be noted that when assembling the housing 2 to the main body 1, the housing 2 is inserted along the axial direction of the port of the main body 1. During the insertion process, the second protruding edge 16 guides the housing 2 to more easily fit into the port of the main body 1, making the assembly operation of the housing 2 simple. After the second protruding edge 16 enters the third groove 25, in addition to the snap-fit ​​engagement between the main body 1 and the housing 2, the housing 2 can also rotate relative to the housing 2 with the central axis of the port of the main body 1 to which it is connected as the rotation center. When the connector is screwed into the external threaded interface with the threaded part 8, the connection effect between the connector and the external device is formed as in Embodiment 1. Moreover, after the main body 1 is assembled to the housing 2, the main body 1 and the first sealing groove 21 together surround the sealing element 3, thereby fixing the position of the sealing element 3 in the first sealing groove 21, which is beneficial to maintaining the seal of the sealing element 3 at the connection position between the main body 1 and the housing 2.

[0052] It needs to be further explained that, such as Figures 13-15 As shown, the outer wall of the main body 1 outside the second protruding edge 16 is provided with a second limiting groove 17, and the inner wall of the shell 2 near the port of the third groove 25 is provided with a third chamfer 26. The part of the shell 2 where the third chamfer 26 is located fits into the second limiting groove 17.

[0053] When the second protruding edge 16 enters the third groove 25, the end of the housing 2 away from the threaded part 8 will fit into the second limiting groove 17, further strengthening the connection between the main body 1 and the housing 2. When the housing 2 is assembled into the main body 1, the oblique movement of the third chamfer 26 and the second protruding edge 16 guides the housing 2 to enter from the port of the main body 1, making it easier for the housing 2 to enter the end of the main body 1 near the first protruding edge 13 and form a connection with the main body 1.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pressure-type rotary connector, comprising a body, characterized in that, The main body has a non-quick-connect port and at least one quick-connect port. The non-quick-connect port is movably connected to the housing via a rotary connection structure. The inner wall of the housing near the rotary connection part and the inner wall of the main body near the quick-connect port are respectively provided with a first sealing groove and a second sealing groove. Both the first sealing groove and the second sealing groove are fitted with sealing elements. An inner ring cover is provided in the quick-connect port space near the second sealing groove of the main body. An outer ring cover is provided in the quick-connect port outside the inner ring cover and sleeved on the outer port of the housing. A claw ring is provided between the inner ring cover and the outer ring cover. The claw ring has several claws in the middle. An unlocking element is fitted inside the outer ring cover. The end of the housing away from the rotary connection structure is provided with a threaded part.

2. The connector according to claim 1, characterized in that, The rotary connection structure includes a first protruding edge and a first groove. The outer wall of the non-quick-connect port is provided with a first protruding edge with a wedge-shaped cross-section. The port of the housing away from the threaded part is provided with a first groove with the same cross-sectional shape as the first protruding edge. The first groove is located in the housing in the direction from the first sealing groove to the end where the threaded part is located. The main body is movably connected to the housing through the cooperation of the first protruding edge and the first groove. The first protruding edge and the inner wall of the housing outside the first groove form a snap-fit ​​structure. The outer wall of the main body outside the first protruding edge is provided with a first limiting groove. The first limiting groove is located outside the seal and together with the first sealing groove, it surrounds the seal.

3. The connector according to claim 2, characterized in that, The inner wall of the housing between the first groove and the first sealing groove is provided with a first chamfer, the first chamfer is located outside the first sealing groove, the inner wall of the housing near the port of the first sealing groove is provided with a second chamfer, and the outer wall of the main body located outside the first limiting groove is provided with a second groove, the second chamfer is located in the second groove.

4. The connector according to claim 1, characterized in that, The rotary connection structure includes a second protruding edge and a third groove. The outer wall of the non-quick-connect port is provided with a second protruding edge with a wedge-shaped cross-section. The port of the housing away from the threaded part is provided with a third groove with the same cross-sectional shape as the second protruding edge. The third groove is located in the housing in the direction from the first sealing groove to the end of the housing where the non-threaded part is located. The second protruding edge is engaged with the third groove to form a snap-fit ​​engagement. The main body is movably connected to the housing through the engagement of the second protruding edge and the third groove. The main body end outside the second protruding edge is located inside the first sealing groove and forms an enclosure with the first sealing groove for the sealing element.

5. The connector according to claim 4, characterized in that, The outer wall of the main body on the outer side of the second convex edge is provided with a second limiting groove, and the inner wall of the port of the housing near the third groove is provided with a third chamfer, and the part of the housing where the third chamfer is located fits into the second limiting groove.

6. The connector according to claim 1, characterized in that, The outer ring cover has an n-shaped cross-section, with a groove between the outer and inner edges. The groove has several wedge-shaped protrusions circumferentially arranged on the wall near the outer edge of the outer ring cover. The outer wall of the main body near the quick-connect port has a third protruding edge, with a fourth groove within the third protruding edge. The outer ring cover is fitted onto the outer end of the main body near the quick-connect port through the engagement of the protrusions and the fourth groove. The protrusions engage with the fourth groove to form a snap-fit ​​connection. The end of the third protruding edge outside the fourth groove has a fourth chamfer. The inner ring cover is located outside the second sealing groove, with a fifth groove on its outer wall. The inner edge of the outer ring cover engages with the fifth groove, pressing the inner ring cover tightly against the inner wall of the main body outside the second sealing groove. The end of the outer ring cover away from the inner ring cover has several first through holes circumferentially arranged. The unlocking element engages with the inner side of the inner edge of the outer ring cover.

7. The connector according to claim 6, characterized in that, The outer wall of the unlocking component is provided with a fourth protruding edge with a wedge-shaped cross-section. The inner wall of the outer ring cover is provided with a sixth groove. The unlocking component is movably connected to the second groove through the fourth protruding edge to achieve cooperation with the outer ring cover. One end of the unlocking component is provided with a fifth protruding edge extending radially along the unlocking component. The end of the unlocking component away from the fifth protruding edge abuts against the claw ring. The surfaces of the second through hole ports in the middle of the unlocking component and the outer ring cover are respectively provided with a first rounded corner and a second rounded corner.

8. The connector according to claim 7, characterized in that, The claw is inclined relative to the central axis of the claw ring. The outer edge of the claw ring has several notches circumferentially. The cross-sectional shape of the unlocking member at the end away from the fourth convex edge is wedge-shaped. The end face of the outer edge of the claw ring and the inner wall surface of the outer ring cover pressed against the clamping ring are parallel to each other. The end face of the outer edge of the claw ring and the end face of the inner ring cover pressed against the clamping ring are not parallel to each other.

9. The connector according to claim 1, characterized in that, The projection of the portion of the housing other than the threaded portion onto a plane perpendicular to the housing axis is a polygon.

10. The connector according to claim 9, characterized in that, The threaded portion is either an external thread located at the end of the housing away from the rotary connection structure or an internal thread located at the end of the housing away from the rotary connection structure.

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