Connector and connector plug and connector socket thereof

Abstract

The connector comprises the connector socket and the matched connector plug, the connector socket comprises a socket shell, the plugging end of the socket shell comprises a threaded head and a clamping groove section which are axially connected, the threaded head is arranged at the front end of the clamping groove section, and the clamping groove section is arranged at the rear end of the threaded head. Wherein an external thread is formed on the outer cylindrical surface of the thread head, an outer wall clamping groove is formed in the outer cylindrical surface of the clamping groove section, and the outer wall clamping groove is formed in the insertion direction of the head seat. Through structural improvement, the device can be compatible with a quick locking mode connection and a threaded connection mode at the same time, the quick locking mode connection can facilitate insertion, the time consumed by insertion and separation of the headstock is effectively shortened, and quick locking and unlocking separation of the headstock joint are achieved.

Description

Technical Field

[0001] This invention belongs to the field of connector technology, specifically relating to a connector and its connector plug and connector socket. Background Technology

[0002] Industrial robotic arms are primarily used in automated assembly lines in electronics, logistics, and automotive industries to perform multi-joint manipulators and multi-degree-of-freedom mechanical devices. Existing robotic arms have complex motion trajectories and application scenarios, and with the continuous development of the industry, higher demands are placed on space and operation. Head-mount engagement mainly relies on threaded connections for locking. This method requires a large operating space and is time-consuming to achieve engagement. Existing threaded connection locking technology is inconvenient to operate, and the threaded structure leads to lengthy engagement and disengagement processes, making operation less convenient. Therefore, quick-locking connectors have emerged. The shortcomings of existing technology are: 1. Existing connector structures cannot simultaneously meet the needs of quick-locking connections and threaded connections. 2. The structure of quick-locking connectors in the industry is still not ideal; some products require manual rotation for locking, which remains inconvenient. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and to provide a connector and its connector plug and connector socket. Through structural improvements, this device can simultaneously accommodate both quick-lock and threaded connection methods. The quick-lock connection facilitates insertion and effectively reduces the time spent on head-and-seat insertion and separation, achieving rapid locking and unlocking at the head-and-seat connection.

[0004] One objective of this invention is to provide a connector, including a connector socket and a matching connector plug. The socket interface of the connector socket includes a threaded head and a slotted section, which are axially connected. The threaded head is located at the front end of the slotted section, wherein the outer cylindrical surface of the threaded head has an external thread, and the outer cylindrical surface of the slotted section has an outer wall slot, which is arranged along the head-base mating direction.

[0005] As a preferred embodiment, the outer wall of the threaded head is formed with a clearance groove along the mating direction, the clearance groove corresponding to the opening of the outer wall slot, and the clearance groove is used to make the external thread discontinuous.

[0006] As a preferred embodiment, the outer wall slot includes a sliding groove and a locking groove provided at the tail end of the sliding groove. An inclined protrusion is provided between the sliding groove and the locking groove. The inclined protrusion is used to guide the cap of the adapter quick-lock connector plug to rotate relative to its plug housing I during the head-seat insertion process.

[0007] As a preferred embodiment, the inclined protrusion has an insertion inclined surface located in the slide groove and a stop surface located in the locking groove.

[0008] As a preferred embodiment, the connector plug includes a plug housing II and a nut. The nut is rotatably disposed at the head end of the plug housing II and has an internal thread. The nut is used to mate with the threaded head for connection.

[0009] As a preferred embodiment, the connector plug includes a plug housing I and a connecting cap. The connecting cap is rotatably disposed at the head end of the plug housing I. A locking block is provided inside the connecting cap, and the connecting cap is used to achieve a snap-fit ​​connection with the outer wall slot.

[0010] As a preferred embodiment, the connector has a cavity formed along the axial direction, and an elastic element is provided in the gap between the plug housing I and the connector, with both ends of the elastic element contacting the plug housing I and the connector respectively.

[0011] As a preferred embodiment, a key is provided on the inner wall of the cavity, and a groove-shaped space is provided on the outer wall of the plug housing I at the insertion end. The groove-shaped space is used to accommodate the key and is arranged along the rotation direction of the connector.

[0012] As a preferred embodiment, the slotted space has an arc-shaped protrusion arranged circumferentially on the side near the insertion end, and the first side of the arc-shaped protrusion forms a stop fit with the key in the first axial direction; the inner wall of the cavity is provided with an annular groove in the circumferential direction, and a retaining ring is installed in the annular groove, and the retaining ring forms a stop fit with the second side of the arc-shaped protrusion in the second axial direction.

[0013] As a preferred embodiment, the plug housing I has at least two slotted spaces distributed circumferentially at the insertion end, the connector is provided with a key that matches the slotted space, one end of the elastic member contacts the key, and the other end contacts the tail end of the adjacent slotted space.

[0014] A second objective of this invention is to provide a connector socket, which is a connector socket of any of the connectors mentioned above.

[0015] A third objective of this invention is to provide a connector plug, which is a connector plug of any of the connectors mentioned above.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: Firstly, this solution improves the structure of the connector socket, making it include both a threaded head for mating with existing threaded connector plugs and a retaining groove for mating with improved quick-lock connector plugs. To prevent the threaded head from obstructing the quick-locking connection of the quick-lock connector plug, this solution also provides a clearance groove on the outer wall of the threaded section along the mating direction. Through the connector socket design, this solution can simultaneously accommodate connector plugs with two different connection methods, improving the compatibility of the connector in this solution.

[0017] Secondly, the connector plug of this invention has a locking block on the inner wall of the plug end of the connector cap. This locking block engages with the outer wall slot of the compatible connector socket. The interlocking of the locking block and the outer wall slot, along with the automatic return mechanism formed by the inner key and the elastic element of the connector cap, allows the connector cap to rotate and automatically reset when the connector head is inserted. Simultaneously, the connector cap automatically locks to the outer wall slot of the connector socket. When the connector head is unlocked, rotating the connector cap quickly separates the connector socket from the connector cap, allowing the plug to be removed and the unlocking process to be completed quickly. This quick-lock connection simplifies the insertion process, saves operation time, and effectively improves operational convenience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the threaded connector plug and the compatible connector socket before they are plugged in according to the present invention; Figure 2 This is a schematic diagram of the quick-lock connector plug and the compatible connector socket before they are plugged in according to the present invention; Figure 3 This is a schematic diagram showing the disassembly of the cap of the quick-lock connector plug in this invention; Figure 4 This is a schematic diagram illustrating the fit between the key and the grooved space in this invention; Figure 5 This is an exploded view of the connector plug in this invention; Figure 6 The three-dimensional hooded structure in this invention Figure 1 ; Figure 7 The three-dimensional hooded structure in this invention Figure 2 ; Figure 8 This is a longitudinal sectional view of the cap in this invention; Figure 9 This is a schematic diagram of the installation of the elastic element in this invention; Figure 10 This is a radial cross-sectional view of the cap in this invention; Figure 11 This is a diagram showing the internal structure of the cap in this invention; Marked in the image: 1. Plug housing I; 11. Plug-in end; 12. Arc-shaped protrusion; 13. Groove space; 131. Opening; 132. Stop plate; 133. Groove space I; 134. Groove space II; 14. Receiving cavity; 16. Circumferential step. 2. Hooded; 21. Key; 211. Key I; 212. Key II; 213. Key III; 22. Locking block; 23. Annular groove; 25. Insertion twist indicator arrow; 26. Unlocking twist indicator arrow; 27. Cavity; 3. Elastic components, 31. Spring I, 32. Spring II; 4. Retaining ring; 5. Flat pad; 6. Plug and connector; 8. Insulators; 10. Connector socket; 101. Socket interface; 102. Threaded head; 103. Slot section; 104. External thread; 105. Outer wall slot; 1051. Sliding groove; 1052. Locking groove; 1053. Angled protrusion; 1053-1. Insertion bevel; 1053-2. Stop surface; 106. Clearance groove. 20. Quick-lock connector plug; 30. Threaded connector plug; 301. Plug housing II; 302. Nut. Detailed Implementation

[0020] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "a," "an," or "the," and similar words used in the specification and claims of this patent application do not express a limitation of quantity, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0022] Example 1 like Figure 1 , 2As shown, this embodiment provides a connector socket 10; the connector socket 10 has a threaded head 102 at the socket interface 101, and an external thread 104 is provided on the outer cylindrical surface of the threaded head 102. The tail end of the threaded head 102 (with the insertion end of the connector socket 10 as the front end) is axially connected to a slot section 103. The outer cylindrical surface of the slot section 103 is provided with an outer wall slot 105 along the head-seat insertion direction. An avoidance groove 106 is formed on the outer cylindrical surface of the threaded head 102. The avoidance groove 106 is provided along the insertion direction and corresponds to the opening of the outer wall slot 105 and has the same number. The function of the avoidance groove 106 is to ensure that the quick-lock connector plug 20 is not obstructed by the external thread 104 when it is inserted into the connector socket 10.

[0023] The connector socket 10 in this embodiment is compatible with connection. Figure 1 The threaded connector plug 30 shown is also compatible. Figure 2 The quick-lock connector plug 20 shown is described. The threaded head 102 is used to mate with the threaded connector plug 30, and the slot section 103 is used to mate with the quick-lock connector plug 20. In this embodiment, the head and seat can be locked together by pushing the tail of the quick-lock connector plug 20 directly. One solution can be compatible with two types of connector plugs.

[0024] In this embodiment, the outer wall slot 105 can adopt the following structure: including a sliding groove 1051 and a locking groove 1052 provided at the tail of the sliding groove 1051. A sloping protrusion 1053 is provided on one side between the sliding groove 1051 and the locking groove 1052. The sloping protrusion 1053 has an insertion sloping surface 1053-1 located in the sliding groove 1051 and a stop surface 1053-2 located in the locking groove 1052. The insertion sloping surface 1053-1 forms a certain angle with the insertion direction. The insertion sloping surface 1053-1 is mainly used to guide the adapter block 22 when the head seat is inserted. The stop surface 1053-1 is mainly used to stop the adapter block 22 when the head seat is locked. Preferably, the stop surface 1053-2 faces the locking groove 203 and is provided along the rotation direction of the connecting cap 2.

[0025] Example 2 like Figure 3-11As shown, this embodiment provides a quick-lock connector plug, including a plug housing I1 and a connecting cap 2 disposed at the insertion end 11 of the plug housing I1. The connecting cap 2 is rotatable relative to the plug housing I1. A receiving cavity 14 for installing an elastic element 3 is provided in the gap between the connecting cap 2 and the plug housing I1. One end of the elastic element 3 contacts the plug housing I1, and the other end contacts the connecting cap 2. The connecting cap 2 can squeeze the elastic element 3, causing the connecting cap 2 to rotate relative to the plug housing I1 in a first rotation direction. At the same time, after being squeezed, the elastic element 3 generates a rebound force to realize the resetting of the connecting cap 2 in a second rotation direction (opposite to the first rotation direction). Therefore, the connecting cap 2 can achieve rapid resetting under the action of the rebound force of the elastic element 3. This solution, through the cooperation of the plug housing I1, the connecting cap 2, and the elastic element 3, realizes the quick-lock connector plug 20 and the adapter connector socket 10 for quick insertion and locking or quick unlocking, improving the convenience of insertion locking and unlocking, saving operation time, and reducing the difficulty of locking and unlocking separation during the insertion process.

[0026] In this embodiment, the plug housing I1 has an internal cavity for accommodating the plug core and the insulator 8, and the insulator 8 has a cavity along the axial direction for accommodating the pins of the plug core. The plug housing I1 has a plug tail seat 6 at its tail end. The plug tail seat 6 can be connected to the tail end of the plug housing I1 by means of thread, snap-fit ​​or adhesive. The plug housing I1 has a groove-shaped space 13 arranged around the outer wall near the plug end 11. The head end of the groove-shaped space 13 forms an opening 131 for the key 21 to be assembled into, and the opening 131 corresponds to one end of the elastic member 3. The tail end of the groove-shaped space 13 is provided with a stop plate 132 (with the opening 131 of the groove-shaped space 13 as the front end and the stop plate 132 of the groove-shaped space 13 as the tail end). The tail end of the elastic member 3 can contact one side of the key 21, and the head end of the elastic member 3 can abut against the stop plate 132 of the tail end of the adjacent groove-shaped space 13. The elastic member 3 can be a common compression spring. In other embodiments of this solution, other types of elastic members can also be used. The elastic member 3 can provide circumferential force for the rotation of the connector 2.

[0027] In this embodiment, the function of the slotted space 13 is to accommodate the key 21 inside the cap 2. The key 21 can enter the slotted space 13 through the opening 131 and can move in the slotted space 13 along the rotation direction of the cap 2. One end of the key 21 contacts one end of the elastic member 3. Preferably, in the extended state of the elastic member 3, the end of the elastic member 3 can enter the slotted space 13 through the opening 131 and abut against one end of the key 21. The slotted space 13 is surrounded by the arc-shaped protrusions 12 located on opposite sides, the circumferential steps 16 on the outer wall of the plug housing I1, and the stop plate 132 located at the tail. The width of the slotted space 13 gradually narrows from the opening 131 towards the tail. The purpose of this design is to ensure that the opening 131 has a large opening angle to facilitate the assembly of the key 21, while avoiding obstruction to the extension and retraction of the elastic member 3, and facilitating the smooth entry of the end of the elastic member 3 into the slotted space 13 to contact and fit with one end of the key 21.

[0028] In this invention, the connector 2 adopts the following structure: the connector 2 is an annular sleeve with a cavity 27 arranged along its axial direction. The function of the cavity 27 is to allow the connector plug 20 and the adapter connector socket 10 to be inserted and locked inside it. A key 21 is arranged circumferentially on the inner wall of the cavity 27 near the tail end of the connector 2. The function of the key 21 is to contact one end of the elastic element 3, and the connector 2 is engaged with the elastic element 3 through the key 21. Locking blocks 22 are evenly distributed on the inner wall of the cavity 27 near the front end of the connector 2.

[0029] In this design, to ensure the axial assembly effect between the connector 2 and the plug housing 1, an annular groove 23 is provided circumferentially on the inner wall of the cavity 27 of the connector 2. The annular groove 23 is used to install the retaining ring 4. The retaining ring 4 is fixedly snapped into the annular groove 23 by its own elasticity. Preferably, the retaining ring 4 can adopt the following structure: the retaining ring 4 is a ring with a break at one end. The two ends of the retaining ring 4 are pressed inward so that the retaining ring 4 can be easily snapped into the annular groove 23. Then, it is reset and fixed in the annular groove 23 by its own elasticity. In other embodiments, the retaining ring 4 can also be snapped into the annular groove 23 by other types of assembly methods. The function of the retaining ring 4 is to effectively ensure the axial position of the connector 2 after installation. When the connector 2 is installed, its key 21 is inserted into the slotted space 13 through the opening 131. At the same time, due to the elastic force of the elastic element 3, the key 21 is prevented from coming out of the slotted space 13 through the opening 131. In addition, since the key 21 is assembled in the slotted space 13, the key 21 will form an axial engagement with the first side of the arc-shaped protrusion 12, thereby limiting the movement of the connector 2 relative to the plug housing 1 in the first axial direction (towards the insertion direction). The retaining ring 4 and the second side of the arc-shaped protrusion 12... This forms a fit, thereby limiting and stopping the cap 2 relative to the plug housing 1 in the second axial direction (towards the tail end of the plug housing 1). In this design, the first side of the arc-shaped protrusion 12 faces the tail end of the plug housing 11, and the second side of the arc-shaped protrusion 12 faces the insertion end 11 of the plug housing 11. Preferably, a gasket 5 is also provided between the retaining ring 4 and the arc-shaped protrusion 12. The gasket 5 is used to compensate for the assembly clearance allowance between the retaining ring 4 and the arc-shaped protrusion 12, and at the same time reduce the wear of the contact surfaces of the retaining ring 4 and the arc-shaped protrusion 12.

[0030] In a typical embodiment of the present invention, the insertion end of the connector plug 20 is provided with two or more slot-shaped spaces 13, so as to... Figure 4 , 9 As shown in Figure 11, the structure is described using two slotted spaces 13 as an example. The two slotted spaces 13 are slotted space I 133 and slotted space II 134. The two slotted spaces 13 are evenly distributed on the plug end 11 of the plug housing 1, and the openings 131 of the two slotted spaces 13 are both set in the same direction of rotation of the connecting cap 2. A key 21 is provided at the tail end of the inner wall of the cavity 27 of the connecting cap 2. In order to cooperate with slotted spaces I 133 and slotted spaces II 134, the key 21 includes two sets of key blocks. One set of key blocks is key I 211, which is set in the circumferential direction of the inner wall of the cavity 27 as shown in the figure. One end of key I 211 can contact the tail end of spring I 31, and the head end of spring I 31 contacts the stop plate 132 at the tail end of the adjacent slotted space 13. The other set of key blocks includes... Figure 11The keys II 212 and III 213 shown here function in the same way as key I 211. The difference is that there is a gap between keys II 212 and III 213. The purpose of this gap is to facilitate the demolding of the protruding design structure on the inner wall of the cap 2. Key I 211 is inserted into the opening 131 of the groove space I 133 and can be movably disposed within the groove space I 133. Keys II 212 and III 213 are inserted into the opening 131 of the groove space II 134 and can be movably disposed within the groove space II 134. After assembly, key II 212 is located in the groove space 13 and can contact the stop plate 132. Key III 213 contacts the tail end of spring II 32. The head end of spring II 32 engages with the stop plate 132 (tail end of the groove space 13) of the adjacent groove space 13.

[0031] In this invention, vertical anti-slip stripes are provided on the outer cylindrical surface of the cap 2 along the axial direction to increase the friction between the cap 2 and its outer surface when the operator twists it. Simultaneously, the outer cylindrical surface of the cap 2 is provided with an insertion twist indicator arrow 25 and an unlocking twist indicator arrow 26.

[0032] As shown in the figure, in this scheme, an installation gap for the key 21 of the connector 2 is formed between the two slotted spaces 13. When the connector 2 is assembled with the plug housing I1, the key 21 of the connector 2 will be inserted axially through the installation gap. Then, the connector 2 is rotated so that the key 21 further enters the slotted space 13 through the opening 131. The elastic element 3 is installed so that one end of the elastic element 3 contacts the key 21 and the other end of the elastic element 3 contacts the tail end of the adjacent slotted space 13. At this time, the key 21, the stop plate 132 of the slotted space 13 and the circumferential step 16 form a receiving cavity 14 for installing the elastic element 3 in the installation gap. The elastic element 3 can shrink or expand in the receiving cavity 14 with the squeezing action of the key 21.

[0033] Example 3 like Figure 2As shown, this embodiment provides a connector, including a connector socket 10 of embodiment 1 and a quick-lock connector plug 20 of embodiment 2. The connector socket 10 and the quick-lock connector plug 20 achieve a quick-lock insertion and engagement of the head and seat. Through the concave-convex engagement structure formed by the inclined protrusion 1053 of the connector socket 10 and the locking block 22 on the quick-lock connector plug 20, and the automatic spring-loaded structure formed by the key 21 of the cap 2 and the elastic element 3, the cap 2 rotates and automatically locks through the above-mentioned automatic spring-loaded structure. The specific locking and unlocking process is as follows: When the head and seat are inserted, the tail of the connector plug 20 is pushed in the axial direction. The locking block 22 of the cap 2 will enter the inner cavity of the outer wall slot 13 along the slide groove 1051. During the sliding process, the elastic element 3 is compressed, and the elastic force of the elastic element 3 increases. After passing the inclined protrusion 1053, the locking block 22 will automatically slide into the locking groove 1052. At this time, the elastic element 3 automatically extends back to its original position, and the head and seat locking process is completed. When the head seat is unlocked, the locking block 22 is dislodged from the locking groove 1052 by manually rotating the connecting cap 2 in the reverse direction. After passing over the inclined protrusion 1053, the quick-lock connector plug 20 is pulled out axially, realizing the rapid separation of the head seat and completing the head seat unlocking process.

[0034] In order to achieve the cooperation between the outer wall slot 105 and the locking block 22 in the inner cavity of the cap 2, when the head seat is inserted, after the locking block 22 contacts the insertion inclined surface 1053-1, the insertion inclined surface 1053-1 will guide the locking block 22 to one side along the slide groove 1051 in the torsion direction, thereby driving the cap 2 to rotate. At this time, the key 21 at the tail end of the cap 2 also gradually squeezes the elastic element 3. When the locking block 22 reaches the most protruding position of the inclined surface protrusion 1053, the elastic element 3 accumulates a certain amount of restoring force. As the locking block 22 passes the inclined surface protrusion 1053, the elastic element 3 uses the accumulated restoring force to push the cap 2 to rotate in the locking direction, so that the locking block 22 can smoothly enter and lock in the locking groove 1052. At the same time, the locking block 22 and the stop surface 1053-2 form a stop. When the head unit is unlocked, the operator twists the connecting cap 2 in the unlocking direction. At the same time, the locking block 22 disengages from the locking groove 1052, and the key 21 squeezes the elastic element 3. After the locking block 22 passes the inclined protrusion 1053, the quick-lock connector plug 20 can be pulled out in the separation direction along the axial direction.

[0035] Example 4 like Figure 1As shown, this embodiment provides a connector, including a connector socket 10 and a threaded connector plug 30 as in Embodiment 1. The connector socket 10 and the threaded connector plug 30 achieve a head-and-base threaded connection. A threaded head 102 is provided at the socket interface 101 of the connector socket 10. An external thread 104 is provided on the outer cylindrical surface of the threaded head 102. A slot section is axially connected to the tail end of the threaded head 102. An outer wall slot 105 is provided on the outer cylindrical surface of the slot section 103 along the head-and-base insertion direction. An avoidance groove 106 is formed on the outer cylindrical surface of the threaded head 102. The avoidance groove 106 is provided along the insertion direction and corresponds to the opening of the outer wall slot 105 and has the same number. The function of the avoidance groove 106 is that when the quick-lock connector plug 20 and the connector socket 10 in Embodiment 2 are connected by insertion, the quick-lock connector plug 20 will not be obstructed by the external thread 104.

[0036] In this embodiment, the threaded connector plug 30 includes a plug housing II 301 and a nut 302 disposed at the head end of the plug housing II 301. The nut 302 is rotatable relative to the plug housing II 301, and both are provided with an axial stop structure to prevent them from separating axially. An internal thread is provided on the inner wall of the nut 302 cavity to mate with the external thread 104 of the threaded head 102. When the threaded connector plug 30 is inserted into the connector socket 10, the threaded connector plug 30 and the connector socket 10 are locked together by rotating the nut 2 in the locking direction. When the head needs to be unlocked, the threaded connector plug 30 and the connector socket 10 are unlocked by rotating the nut 2 in the unlocking direction. The main purpose of this design is to make the connector socket 10 compatible with existing threaded connector plugs 30.

[0037] Example 5 like Figure 1 and 2 As shown, this embodiment provides a connector, including a connector socket 10 and a connector plug. The connector socket 10 has a threaded head 102 at its socket interface 101. An external thread 104 is provided on the outer cylindrical surface of the threaded head 102. A retaining groove section 103 is axially connected to the tail end of the threaded head 102. An outer wall retaining groove 105 is provided on the outer cylindrical surface of the retaining groove section 103 along the head-seat mating direction. A clearance groove 106 is formed on the outer cylindrical surface of the threaded head 102, along the mating direction, and corresponds to and is the same in number as the opening of the outer wall retaining groove 105. This embodiment, through the specific structural design of the connector socket 10, can simultaneously accommodate two different connector plugs, improving the compatibility of the connector socket 10 in this solution.

[0038] In this embodiment, the connector plug 20 includes a threaded connector plug 30 and a quick-lock connector plug 20. When the nut 302 is matched with the threaded connector plug 30, the threaded connector plug 30 includes a plug housing II 301 and a nut 302 disposed at the head end of the plug housing II 301. The nut 302 can rotate relative to the plug housing II 301, and both are provided with a stop structure in the axial direction to prevent them from separating relative to each other in the axial direction. An internal thread that mates with the threaded head 102 is provided on the inner wall of the cavity of the nut 302. When the threaded connector plug 30 and the connector socket 10 are connected by threads, the threaded connector plug 30 and the connector socket 10 can be locked by rotating the nut 2 in the locking direction. When the head needs to be unlocked, the threaded connector plug 30 and the connector socket 10 can be unlocked by rotating the nut 302 in the unlocking direction.

[0039] When the connector socket 10 mates with the quick-lock connector plug 20, pushing the tail of the quick-lock connector plug 20 axially causes the locking block 22 of the cap 2 to first pass through the clearance groove 106 and slide into the outer wall groove 105 of the connector socket 10. During this sliding process, the elastic element 3 is compressed, increasing the elastic force. When the locking block 22 slides into the locking groove 1052, the locking process of the head seat is completed. To unlock, manually twist the cap 2 in the reverse direction. When the locking block 22 in the cap 2 exits from the outer wall groove 105 of the connector socket 10, an axial separation force is applied, pulling out the quick-lock connector plug 20 axially. The locking block 22 exits from the outer wall groove 105 and comes out of the clearance groove 106, thus completing the unlocking process.

[0040] In this design, the quick-lock connector plug 20 has a connecting cap 2 at the insertion end of the plug housing I1, and the structure of the plug housing I1 and the connecting cap 2 is improved. An elastic element 3 is provided in the gap between the plug housing I1 and the connecting cap 2. When the head seat is locked, the connecting cap 2 can compress the elastic element 3 and accumulate a restoring force. Under the action of the elastic element 3, the connecting cap 2 is pushed to achieve the head seat locking connection. When the head seat is unlocked, after the connecting cap 2 compresses the elastic element 3 and pulls out the quick-lock connector plug 20, the elastic element 3 will further push the connecting cap 2 to achieve rotational reset. The snap-fit ​​structure, consisting of the inclined protrusion 1053 in the outer wall slot 103 of the socket interface 101, the snap-fit ​​block 22 in the cap 2, and the automatic spring-back structure consisting of the elastic element 3 and the key 21, enables the head seat to automatically lock when inserted axially. When unlocking, the snap-fit ​​structure and the automatic spring-back structure work together to allow the snap-fit ​​block 22 to rotate out of the outer wall slot 105 by rotating the cap 2, thereby achieving axial pull-out and quick separation.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A connector, comprising a connector socket and a mating connector plug, characterized in that: The connector socket interface includes a threaded head and a slotted section, which are axially connected. The threaded head is located at the front end of the slotted section, and the outer cylindrical surface of the threaded head has an external thread. The outer cylindrical surface of the slotted section has an outer wall slot, which is located along the head-base insertion direction.

2. The connector according to claim 1, characterized in that: The outer wall of the threaded head is formed with a clearance groove along the mating direction. The clearance groove corresponds to the opening of the outer wall slot. The clearance groove is used to make the external thread discontinuous.

3. The connector according to claim 2, characterized in that: The outer wall slot includes a sliding groove and a locking groove at the end of the sliding groove. A sloping protrusion is provided between the sliding groove and the locking groove. The sloping protrusion is used to guide the cap of the adapter quick-lock connector plug to rotate relative to its plug housing I during the head-seat insertion process.

4. The connector according to claim 3, characterized in that: The inclined protrusion has an insertion inclined surface located in the slide groove and a stop surface located in the lock groove.

5. The connector according to any one of claims 1-4, characterized in that: The connector plug includes a plug housing II and a nut. The nut is rotatably disposed at the head end of the plug housing II. The nut has an internal thread and is used to mate with the threaded head for connection.

6. The connector according to any one of claims 1-4, characterized in that: The connector plug includes a plug housing I and a connecting cap. The connecting cap is rotatably disposed at the head end of the plug housing I. A locking block is provided inside the connecting cap. The connecting cap is used to achieve a snap-fit ​​connection with the outer wall slot.

7. The connector according to claim 6, characterized in that: The connector has a cavity formed along the axial direction, and an elastic element is provided in the gap between the plug housing I and the connector, with both ends of the elastic element contacting the plug housing I and the connector respectively.

8. The connector according to claim 7, characterized in that: A key is provided on the inner wall of the cavity, and a groove-shaped space is provided on the outer wall of the plug housing I, which is used to accommodate the key and is arranged along the rotation direction of the connector.

9. The connector according to claim 8, characterized in that: The groove-shaped space has an arc-shaped protrusion arranged circumferentially on the side near the insertion end. The first side of the arc-shaped protrusion forms a stop fit with the key in the first axial direction. The inner wall of the cavity is provided with an annular groove in the circumferential direction. A retaining ring is installed in the annular groove. The retaining ring forms a stop fit with the second side of the arc-shaped protrusion in the second axial direction.

10. The connector according to claim 8 or 9, characterized in that: The plug housing I has at least two slotted spaces distributed circumferentially at the insertion end. The connector is provided with a key that matches the slotted space. One end of the elastic element contacts the key, and the other end contacts the tail end of the adjacent slotted space.

11. A connector socket, characterized in that: It is the connector socket in any one of the connectors in claims 1-10.

12. A connector plug, characterized in that: It is the connector plug in any one of the connectors in claims 1-10.

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