Quick release structure for plug-in connector

Abstract

The application discloses a kind of plug-in connector quick unlocking structure, including socket and plug, and the plug-in end of plug can be inserted in the socket mouth to realize electric connection conduction, first buckle is equipped on the outer side wall of socket, second buckle is movably equipped on the side wall of plug, the second buckle reciprocating motion can be buckled with first buckle and be disconnected, a plurality of passive transmission teeth are equipped on the second buckle, and unlocking handle and handle reset elastic element are further equipped, the unlocking handle can be reciprocating motion and be installed on plug, active transmission tooth is equipped on the unlocking handle, active transmission tooth is engaged with passive transmission tooth and is driven, handle reset elasticity is installed on plug, handle reset elasticity provides the elastic reset force of the unlocking handle to the direction of making second buckle and first buckle buckle, the application can be unlocked while plugging in plug, it is favorable to improve construction efficiency, unlocking transmission mechanism is high in strength, and is not easy to be clamped and damaged.

Description

Technical Field

[0001] This invention relates to a connector, and more particularly to a quick-unlocking structure for a plug-in connector. Background Technology

[0002] Plug-in connectors connect by inserting the plug's prongs into the socket's pins, allowing the metal clips on the plug's prongs to elastically clamp and conduct electrical signals. However, since plug-in connectors may be used in vibrating environments, traditional plug-in connectors often experience plug-socket detachment, leading to unstable signal transmission. To ensure a tight connection and stable signal transmission, some designs incorporate lugs on the sidewalls of both the plug and socket, with through holes and threaded holes. After insertion, screws are used to secure the lugs to the plug and socket, fixing them together. This design increases the overall size of the plug and socket, and the locking method is inconvenient, requiring a screwdriver to tighten and loosen the screws after insertion and before removal, significantly reducing efficiency. Furthermore, it is highly dependent on the screwdriver; lacking a suitable screwdriver can prevent tightening or loosening. Summary of the Invention

[0003] To overcome the above-mentioned defects, the present invention provides a quick-unlocking structure for plug-in connectors. This quick-unlocking structure enables rapid unlocking of the socket and plug, is easy to operate, and helps to improve construction efficiency.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: a quick-unlocking structure for a plug-in connector, including a socket and a plug. The plug's insertion end can be inserted into the socket's socket to achieve electrical connection. A first latch is provided on the outer wall of the socket, and a second latch is movably provided on the side wall of the plug. The second latch reciprocates to engage and disengage with the first latch. The second latch has several passive transmission teeth. An unlocking handle and a handle reset elastic element are also provided. The unlocking handle is reciprocally mounted on the plug and has active transmission teeth that mesh with the passive transmission teeth. The handle reset elastic element is movably mounted on the plug and provides an elastic reset force to the unlocking handle in the direction that causes the second latch to engage with the first latch.

[0005] As a further improvement of the present invention, the second buckle is axially stopped and circumferentially rotatable and is mounted on the plug. A plurality of the passive transmission teeth are arranged in a gear structure on the outer circumferential wall of one end of the second buckle. The unlocking handle is mounted on the plug in a linear sliding manner. One end of the unlocking handle forms an operating end that is always located outside the plug. The active transmission teeth are arranged in a rack structure along the sliding direction of the unlocking handle at the other end of the unlocking handle.

[0006] As a further improvement of the present invention, the first buckle is a recessed structure provided on the side wall surface of the socket, and the other end of the second buckle is formed with an eccentric protrusion. The eccentric protrusion can be inserted into the recessed structure along with the rotation axis of the second buckle, and the eccentric protrusion stops on the side wall surface of the recessed structure facing the plug direction.

[0007] As a further improvement of the present invention, the second buckle includes a rotating shaft, a cantilever, and a drive shaft. The drive shaft is coaxially fixed at one end of the rotating shaft, and the diameter of the drive shaft is smaller than the diameter of the rotating shaft. The cantilever is fixed at the other end of the rotating shaft and extends toward the socket. An eccentric protrusion is fixed on the end surface of the cantilever. The passive transmission teeth are distributed on the outer circumferential wall of the drive shaft. The plug is provided with a rotating shaft hole and a handle hole perpendicularly intersecting each other. The diameter of one end of the rotating shaft hole is larger than the diameter of the other end. The rotating shaft can be rotatably inserted into the rotating shaft hole. The drive shaft at one end of the rotating shaft extends into the handle hole through the rotating shaft hole. The cantilever extends out of the other end of the rotating shaft hole to the outside of the plug. The unlocking handle is circumferentially stopped and axially can slide linearly a set distance and is inserted into the handle hole. The side wall of the unlocking handle stops on the end face of one end of the rotating shaft.

[0008] As a further improvement of the present invention, the cantilever is an inclined extension structure with its free end further away from the axis of rotation than its root, and the eccentric protrusion is provided on the surface of the free end of the cantilever away from the axis of rotation.

[0009] As a further improvement of the present invention, the side wall of the unlocking handle is provided with a limiting groove extending along its sliding direction, or the side wall of the unlocking handle is provided with a limiting boss in a raised state, and the inner side wall of the handle hole is provided with a corresponding limiting boss or a limiting groove extending along the sliding direction of the unlocking handle, and the limiting boss can be slidably inserted into the limiting groove.

[0010] As a further improvement of the present invention, the plug includes a first housing and a second housing. A cavity structure is formed inside the first housing. A cavity opening communicating with the cavity structure is formed on one side wall of the first housing. A pivot hole is located on the bottom surface of the cavity structure, and a handle hole is located on the side wall of the cavity structure. The pivot hole and the handle hole are intersecting and communicating within the cavity structure. The second housing can be inserted into the cavity opening of the first housing. The outer side wall of the second housing can be fastened to the inner side wall of the cavity opening of the first housing. The limiting boss is fixedly disposed on the second housing.

[0011] As a further improvement of the present invention, the handle hole is a blind hole, and the handle reset elastic element is a compression spring inserted into the handle hole or an elastic support arm integrally formed on the other end of the unlocking handle. The compression spring is tightly clamped between the bottom surface of the handle hole and the end face of the other end of the unlocking handle. The elastic support arm is an arc-shaped cantilever structure or an inclined cantilever structure with an angle to the sliding direction of the unlocking handle. The free end of the elastic support arm that can elastically deform is tightly pressed against the bottom surface of the handle hole.

[0012] As a further improvement of the present invention, the bottom surface of the handle hole and the other end surface of the unlocking handle are respectively provided with spring limiting holes for the two ends of the compression spring to be inserted and positioned, and the end of the free end of the elastic support arm contacts the bottom surface of the handle hole through the arc surface.

[0013] As a further improvement of the present invention, the operating end of the unlocking handle is formed with a pressing arc surface that matches the fingertip of a person, and the operating end is also fixedly provided with a guide post extending along the sliding direction of the unlocking handle. The side wall of the plug is provided with a guide slot extending along the sliding direction of the unlocking handle, and the guide post can be inserted into the guide slot in a straight line.

[0014] The beneficial effects of this invention are as follows: A first latch is provided on the side wall of the socket, and a second latch is provided inside the plug. By pressing the unlocking handle, the second latch is driven to move through the transmission mechanism of the active and passive teeth, thereby disengaging from the first latch. This avoids the need for screw-locking and screw-loosening operations, allowing the unlocking operation to be performed simultaneously with plugging and unplugging, without taking up extra time, thus improving construction efficiency. The unlocking handle and the second latch are transmitted through a gear and rack structure, resulting in high transmission strength and preventing jamming or damage. The first latch adopts a concave structure, which does not form an outward protrusion on the socket and does not increase the external dimensions of the plug and socket. Attached Figure Description

[0015] Figure 1 This is an exploded perspective view of the plug and socket of the present invention;

[0016] Figure 2 This is a schematic diagram of the plug and socket connection state of the present invention;

[0017] Figure 3 This is a schematic diagram of the plug and socket locking state according to the present invention;

[0018] Figure 4 This is a schematic diagram of the unlocked state of the plug and socket according to the present invention;

[0019] Figure 5 This is a schematic diagram illustrating the transmission principle between the active transmission gear on the unlocking handle and the passive transmission gear on the second buckle of the present invention.

[0020] Figure 6 This is a schematic diagram illustrating the elastic reset principle of the unlocking handle of the present invention;

[0021] Figure 7 This is a perspective view of the first housing of the present invention;

[0022] Figure 8 This is a perspective view of the second snap fastener of the present invention;

[0023] Figure 9 This is a first perspective view of the first type of operating handle of the present invention;

[0024] Figure 10 This is a second perspective view of the first type of operating handle of the present invention;

[0025] Figure 11 This is a front view of the second type of operating handle of the present invention;

[0026] Figure 12 This is a right view of the second type of operating handle of the present invention. Detailed Implementation

[0027] Example: A quick-unlocking structure for a plug-in connector includes a socket 1 and a plug 2. The plug end 3 of the plug 2 can be inserted into the socket 4 of the socket 1 to achieve electrical connection. A first latch is provided on the outer wall of the socket 1, and a second latch is provided on the side wall of the plug 2. The second latch can reciprocate to engage and disengage with the first latch. The second latch is provided with several passive transmission teeth 5. An unlocking handle 6 and a handle reset elastic element are also provided. The unlocking handle 6 is reciprocally mounted on the plug 2. The unlocking handle 6 is provided with active transmission teeth 8, which mesh with the passive transmission teeth 5. The handle reset elastic element is installed on the plug 2 and provides an elastic reset force to the unlocking handle 6 in the direction that causes the second latch to engage with the first latch.

[0028] When plug 2 is inserted into socket 1, the second latch automatically engages with the first latch on socket 1 under the action of the handle's reset elastic element, thus automatically locking plug 2 and socket 1 in place. This prevents unstable electrical connection between plug 2 and socket 1 due to vibration or accidental contact. To remove plug 2 from socket 1, simply grasp plug 2 while operating the unlocking handle 6. The movement of unlocking handle 6 engages the active transmission gear 8 and the passive transmission gear 5, causing the second latch to disengage from the first latch. Then, plug 2 can be pulled out. This structure enables quick locking and unlocking of plug 2 and socket 1 during insertion and removal, eliminating the need for additional hardware tools. It is convenient to use and does not rely on hardware tools.

[0029] The second buckle is axially stopped and circumferentially rotatable and is mounted on the plug 2. Several passive transmission teeth 5 are arranged in a gear structure on the outer circumferential wall of one end of the second buckle. The unlocking handle 6 is mounted on the plug 2 and can slide linearly. One end of the unlocking handle 6 forms an operating end that is always located outside the plug 2. The active transmission teeth 8 are arranged in a rack structure along the sliding direction of the unlocking handle 6 at the other end of the unlocking handle 6. The unlocking handle 6 slides linearly on the plug 2, thereby driving the gear to rotate via the rack, which in turn causes the second latch to rotate and engage or disengage with the first latch. This structure allows the plug 2 to be unlocked from the socket 1 simply by pressing the unlocking handle 6 while holding the plug 2. This operation is extremely convenient and fast. Alternatively, the second latch can be positioned by moving linearly up and down within the plug 2, with the unlocking handle 6 rotating on the plug 2. The active transmission gear 8 forms a gear structure on the unlocking handle 6, and the passive transmission gear 5 forms a rack structure on the second latch. When the gear rotates with the unlocking handle 6, the second latch slides up and down under the action of the rack, thereby disengaging the second latch from the first latch. Alternatively, both the active transmission gear 8 and the passive transmission gear 5 can form gear structures, and the unlocking handle 6 can rotate to drive the second latch to rotate, thus unlocking the plug. These are all equivalent alternative structures that are easily conceived by those skilled in the art based on this application, and all fall within the scope of protection of this application.

[0030] The first latch is a recessed structure 9 located on the side wall surface of the socket 1. The other end of the second latch has an eccentric protrusion 10. The eccentric protrusion 10 can be inserted into the recessed structure 9 along with the second latch's rotating shaft 11, and it stops against the side wall surface of the recessed structure 9 facing the plug 2. By engaging the eccentric protrusion 10 with the recessed structure 9, the plug 2 and socket 1 are locked together. The recessed structure 9 can be a slot, a socket, or a stepped structure, and the eccentric protrusion 10 can be any shape of protrusion, pin, etc. These are structures that can be freely chosen by those skilled in the art according to actual needs and are all within the scope of protection of this application.

[0031] The second buckle includes a rotating shaft 11, a cantilever 12, and a drive shaft 13. The drive shaft 13 is coaxially fixed to one axial end of the rotating shaft 11, and the diameter of the drive shaft 13 is smaller than the diameter of the rotating shaft 11. The cantilever 12 is fixed to the other axial end of the rotating shaft 11 and extends toward the socket 1. An eccentric protrusion 10 is fixed to the end surface of the cantilever 12. The passive transmission teeth 5 are distributed on the outer circumferential wall of the drive shaft 13. The plug 2 has a rotating shaft hole 14 and a hand gripping hole arranged perpendicularly. The handle hole 15 has a diameter at one end of the pivot hole 14 that is larger than the diameter at the other end. The pivot 11 is rotatably inserted into the pivot hole 14. The drive shaft 13 at one end of the pivot 11 extends into the handle hole 15 through the pivot hole 14. The cantilever 12 extends out of the other end of the pivot hole 14 to the outside of the plug 2. The unlocking handle 6 is circumferentially stopped and axially able to slide linearly a set distance, inserted into the handle hole 15. The side wall of the unlocking handle 6 is stopped on the end face of one axial end of the pivot 11. The passive transmission gear 5 on the drive shaft 13 meshes with the active transmission gear 8 on the unlocking handle 6, thereby driving the rotating shaft 11 to rotate within the rotating shaft hole 14. This causes the cantilever 12 to rotate synchronously, allowing the eccentric protrusion 10 at the free end of the cantilever 12 to insert into or exit the recessed structure 9 on the side wall of the socket 1, thus achieving locking and unlocking. The two ends of the rotating shaft 11 are clamped by the stepped surface at one end of the rotating shaft hole 14 and the unlocking handle 6, and are thus axially stopped and positioned within the plug 2, preventing it from coming out. The above assembly structure is simple, and the second buckle and operating handle can be quickly assembled and positioned with the plug 2.

[0032] The cantilever 12 is an inclined extension structure with its free end further away from the axis of the rotating shaft 11 than its root. The eccentric protrusion 10 is located on the surface of the free end of the cantilever 12 away from the axis of the rotating shaft 11. By designing the cantilever 12 as an inclined extension structure, when it is in the locked state as it rotates with the rotating shaft 11, it can ensure that the eccentric protrusion 10 is tightly inserted and positioned with the recessed structure 9 on the side wall of the socket 1. When it is in the unlocked state, a large gap is formed between the free end of the cantilever 12 and the side wall of the socket 1, which avoids affecting the plug 2 from being pulled out of the socket 1, and at the same time, avoids friction damage to the cantilever 12 when the plug 2 is pulled out.

[0033] The unlocking handle 6 has a limiting groove 16 extending along its sliding direction on its side wall, or a limiting boss 17 protruding from its side wall. The inner side wall of the handle hole 15 has a corresponding limiting boss 17 or a limiting groove extending along the sliding direction of the unlocking handle 6. The limiting boss 17 can be slidably inserted into the limiting groove 16. By inserting the limiting boss into the limiting groove 16, the reciprocating sliding distance of the unlocking handle 6 is achieved, preventing the unlocking handle 6 from dislodging from the outside of the plug 2. Alternatively, the portion of the unlocking handle 6 inside the plug 2 can be enlarged, and the upper handle hole 15 of the plug 2 can form a T-shaped hole with an opening smaller than the inner cavity. This also limits the sliding range of the unlocking handle 6. These are equivalent replacement structures that are easily conceived by those skilled in the art based on this patent and fall within the scope of protection of this patent.

[0034] The plug 2 includes a first housing 18 and a second housing 19. A cavity structure 20 is formed inside the first housing 18. A cavity opening communicating with the cavity structure 20 is formed on one side wall of the first housing 18. A pivot hole 14 is located on the bottom surface of the cavity structure 20, and a handle hole 15 is located on the side wall of the cavity structure 20. The pivot hole 14 and the handle hole 15 intersect and communicate within the cavity structure. The second housing 19 can be inserted into the cavity opening of the first housing 18, and the outer wall of the second housing 19 can be fastened to the inner wall of the cavity opening of the first housing 18. The limiting boss 17 is fixedly mounted on the second housing 19. The plug 2 housing is designed as a split structure consisting of the first housing 18 and the second housing 19 fastened together. This structure facilitates the assembly and positioning of the second latch and the unlocking handle 6.

[0035] The handle hole 15 is a blind hole. The handle reset elastic element is a compression spring 7 inserted into the handle hole 15 or an elastic support arm 21 integrally formed on the other end of the unlocking handle 6. The compression spring 7 is tightly clamped between the bottom surface of the handle hole 15 and the end face of the other end of the unlocking handle 6. The elastic support arm 21 is an arc-shaped cantilever 12 structure or an inclined cantilever 12 structure with an angle to the sliding direction of the unlocking handle 6. The free end of the elastic support arm 21 that can elastically deform is tightly pressed against the bottom surface of the handle hole 15. When the unlocking handle 6 is pressed into the unlocked state, it will compress the compression spring 7 or the elastic support arm 21, causing it to elastically deform. When the plug 2 is pulled out, or when the plug 2 is plugged into the socket 1, the unlocking handle 6 loses the pressing force, and the compression spring 7 or the elastic support arm 21 elastically resets, causing the unlocking handle 6 to reset, so that the second buckle is then engaged. In addition to the above structure, the handle Dewey elastic element can be other elastic structures, such as a spring, tension spring, etc.

[0036] The bottom surface of the handle hole 15 and the other end face of the unlocking handle 6 are respectively provided with spring limiting holes 22 for the two ends of the compression spring 7 to be inserted and positioned. The free end of the elastic support arm 21 contacts the bottom surface of the handle hole 15 through the arc surface. The spring limiting holes 22 limit the two ends of the compression spring 7 to be inserted and positioned, so as to prevent the compression spring 7 from deforming and being damaged in the radial direction.

[0037] The operating end of the unlocking handle 6 has a pressing arc surface 23 that matches the fingertip of a user, and a guide post 24 extending along the sliding direction of the unlocking handle 6 is fixedly provided on the operating end. The side wall of the plug 2 has a guide slot 25 extending along the sliding direction of the unlocking handle 6, and the guide post 24 can slide linearly into the guide slot 25. When the unlocking handle 6 is pressed and slids, the guide post 24 and the guide slot 25 on the plug 2 slide to guide it, while increasing the strength of the unlocking handle 6 and preventing damage from long-term pressing.

Claims

1. A quick-unlocking structure for a plug-in connector, comprising a socket (1) and a plug (2), wherein the plug's insertion end (3) can be inserted into the socket's insertion port (4) to achieve electrical connection, characterized in that: A first latch is provided on the outer wall of the socket, and a second latch is provided on the side wall of the plug. The second latch reciprocates and can engage and disengage with the first latch. The second latch is provided with several passive transmission teeth (5). An unlocking handle (6) and a handle reset elastic element are also provided. The unlocking handle is reciprocating and mounted on the plug. The unlocking handle is provided with active transmission teeth (8). The active transmission teeth mesh with the passive transmission teeth. The handle reset elastic element is mounted on the plug. The handle reset elastic element provides the unlocking handle with an elastic reset force in the direction that causes the second latch to engage with the first latch. The second latch is axially stopped and circumferentially rotatable, mounted on the plug. A plurality of the passive transmission teeth are arranged in a gear structure on the outer circumferential wall of one end of the second latch. The unlocking handle is linearly slidable and mounted on the plug. One end of the unlocking handle forms an operating end that is always located outside the plug. The active transmission teeth are arranged in a rack structure along the sliding direction of the unlocking handle at the other end. The first latch is a recessed structure (9) on the side wall surface of the socket. The other end of the second latch has an eccentric protrusion (10). The eccentric protrusion can be inserted into the recessed structure along with the rotation axis of the second latch, and the eccentric protrusion stops at... The recessed structure faces the side wall surface towards the plug. The second buckle includes a rotating shaft (11), a cantilever (12), and a drive shaft (13). The drive shaft is coaxially fixed at one end of the rotating shaft, and the diameter of the drive shaft is smaller than the diameter of the rotating shaft. The cantilever is fixed at the other end of the rotating shaft and extends towards the socket. An eccentric protrusion is fixed on the end surface of the cantilever. The passive transmission teeth are distributed on the outer circumferential side wall of the drive shaft. The plug is provided with a rotating shaft hole (14) and a handle hole (15) perpendicularly intersecting each other. The diameter of one end of the rotating shaft hole is larger than the diameter of the other end. The rotating shaft is rotatably inserted into the rotating shaft hole. The drive shaft extends from one end of the shaft hole into the handle hole, and the cantilever extends from the other end of the shaft hole to the outside of the plug. The unlocking handle is inserted into the handle hole with circumferential stop and axial linear sliding distance. The side wall of the unlocking handle stops on the end face of one end of the shaft axis. The cantilever is an inclined extension structure with the free end further away from the shaft axis than the root. The eccentric protrusion is provided on the surface of the free end of the cantilever away from the shaft axis. When it is in the locked state, it can ensure that the eccentric protrusion is tightly inserted and positioned with the recessed structure on the side wall of the socket. When it is in the unlocked state, a large gap is formed between the free end of the cantilever and the side wall of the socket.

2. The quick-unlocking structure for the plug-in connector according to claim 1, characterized in that: The side wall of the unlocking handle is also provided with a limiting groove (16) extending along its sliding direction, or the side wall of the unlocking handle is provided with a limiting boss in a raised state, and the inner side wall of the handle hole is provided with a corresponding limiting boss (17) or a limiting groove extending along the sliding direction of the unlocking handle, and the limiting boss can be slidably inserted into the limiting groove.

3. The quick-unlocking structure for the plug-in connector according to claim 2, characterized in that: The plug includes a first housing (18) and a second housing (19). A cavity structure (20) is formed inside the first housing. A cavity opening communicating with the cavity structure is formed on one side wall of the first housing. A pivot hole is located on the bottom surface of the cavity structure, and a handle hole is located on the side wall of the cavity structure. The pivot hole and the handle hole are intersected and connected within the cavity structure. The second housing can be inserted into the cavity opening of the first housing. The outer side wall of the second housing can be fastened to the inner side wall of the cavity opening of the first housing. The limiting boss is fixedly provided on the second housing.

4. The quick-unlocking structure for the plug-in connector according to claim 1, characterized in that: The handle hole is a blind hole. The handle reset elastic element is a compression spring (7) inserted into the handle hole or an elastic support arm (21) integrally formed on the other end of the unlocking handle. The compression spring is tightly clamped between the bottom surface of the handle hole and the end face of the other end of the unlocking handle. The elastic support arm is an arc-shaped cantilever structure or an inclined cantilever structure with an angle to the sliding direction of the unlocking handle. The free end of the elastic support arm that can elastically deform is tightly against the bottom surface of the handle hole.

5. The quick-unlocking structure for the plug-in connector according to claim 4, characterized in that: The bottom surface of the handle hole and the other end surface of the unlocking handle are respectively provided with spring limiting holes (22) for the two ends of the compression spring to be inserted and positioned. The end of the free end of the elastic support arm contacts the bottom surface of the handle hole through the arc surface.

6. The quick-unlocking structure for the plug-in connector according to claim 1, characterized in that: The operating end of the unlocking handle has a pressing arc surface (23) that matches the fingertip of the user, and the operating end is also fixedly provided with a guide post (24) extending along the sliding direction of the unlocking handle. The side wall of the plug is provided with a guide slot (25) extending along the sliding direction of the unlocking handle, and the guide post can be inserted into the guide slot in a straight line.

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