Terminal base lock release and extraction structure

Abstract

The utility model discloses a terminal platform retreats lock and helps to pull out structure, including socket and plug, and the plug -in column on plug can be closely inserted in the plug -in slot on socket and realizes electric connection conduction, and the socket is equipped with the clamping groove on at least one side wall along its length direction, and the plug is hinged with a lock body on at least one side wall along its length direction, be equipped with the lock hook on the lock body, the lock hook can with the clamping groove on socket disengage and unlock along with lock body positive rotation, and the lock hook can be caught and locked with the clamping groove on socket along with lock body reverse rotation, and be equipped with an eccentric fulcrum on the lock body, the eccentric fulcrum can gradually contact socket end surface and pry up plug along with lock body positive rotation, the eccentric fulcrum can gradually away from socket end surface and make plug and socket end can keep stable plug -in conduction state along with lock body reverse rotation, the utility model discloses improved the operation convenience of retreat lock and pulls out plug, and can realize the plug quick plug -in of terminal platform in narrow space, and the whole structure is simple.

Description

Technical Field

[0001] This utility model relates to a vertical pluggable terminal block, and more particularly to a terminal block unlocking and pull-out assist structure. Background Technology

[0002] The upright pluggable terminal block achieves terminal contact and conduction by interlocking the plug pins on the plug with the socket slots on the socket. When the plug pins of the terminal block are long, the plugging and unplugging force between the plug and the socket is very large, making it very difficult to pull the plug directly out of the socket. Even with a rotating handle for unlocking, the effect is not ideal. Moreover, the rotating handle structure requires a large space in the width direction of the terminal block when the handle is turned, which is not conducive to use in narrow spaces.

[0003] Therefore, when using traditional upright plug-in terminal blocks with long plug pins or a large number of plug pins, the large pull-out force and narrow space make it very difficult to separate the plug from the socket. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a terminal block unlocking and pull-out assist structure, which can easily and quickly unplug the plug from the socket in a confined space.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a terminal block unlocking and pull-out assist structure, including a socket and a plug. The plug pins can be tightly inserted into the socket slots to achieve electrical connection. The socket has a slot on at least one side wall along its length. The plug has a lock body hinged to at least one side wall along its length. The lock body has a locking hook. The locking hook can disengage from the slot on the socket and unlock when the lock body rotates forward. The locking hook can engage with the slot on the socket and lock when the lock body rotates in the opposite direction. The lock body has an eccentric fulcrum. The eccentric fulcrum can gradually contact the socket end face and pry up the plug when the lock body rotates forward. The eccentric fulcrum can gradually move away from the socket end face when the lock body rotates in the opposite direction, so that the plug and socket end can maintain a stable plug-in and conductive state.

[0006] As a further improvement of this utility model, the lock body is a triangular plate structure. The side facing the socket is formed by removing the material to create an arc-shaped guide contact edge that can roll into contact with the end face of the socket. One end of the arc-shaped guide contact edge forms a locking hook structure at a sharp corner of the triangular plate structure near the socket. The other end of the arc-shaped guide contact edge smoothly transitions to the other sharp corner of the triangular plate structure near the socket to form an eccentric fulcrum.

[0007] As a further improvement of this utility model, a push-pull piece is installed on at least one side wall of the plug along its length direction, which can slide up and down by a set distance. The side wall of the push-pull piece is provided with a sliding pin or a long strip-shaped groove that forms an angle with the vertical direction. The side wall of the lock body is provided with a long strip-shaped groove or a sliding pin that is eccentric to the hinge axis. The sliding pin can be slidably inserted into the long strip-shaped groove. Sliding the push-pull piece up and down can make the sliding pin slide along the long strip-shaped groove, thereby forcing the lock body to rotate in both directions.

[0008] As a further improvement of this utility model, the push-pull piece is provided with a guide groove or guide protrusion extending vertically, and the plug is provided with a guide protrusion or a guide groove extending vertically along its length sidewall. The guide protrusion can slide vertically along the guide groove to limit and guide the vertical sliding of the push-pull piece.

[0009] As a further improvement of this utility model, the guide groove on the push-pull tab is an L-shaped stepped groove with a width smaller than that away from the plug direction in the direction of plug direction, and two guide grooves are symmetrically provided on the push-pull tab along the width direction of the plug. The guide protrusions on the two side walls of the plug along its length direction are two symmetrically provided along the width direction of the plug. The guide protrusions form a cantilever structure, and the guide protrusions have inverted protrusions on the side walls of the free end of the cantilever structure. The inverted protrusions of the guide protrusions can slide from the narrow side of the L-shaped stepped groove on the push-pull tab to the wide side, and the inverted protrusions on the guide protrusions can stop on the stepped surface of the L-shaped stepped groove on the push-pull tab.

[0010] As a further improvement of this utility model, the plastic shell of the plug has protruding hinge shafts integrally formed on both sides along its length direction, and the lock body is provided with hinge holes, in which the hinge shafts are inserted.

[0011] As a further improvement of this utility model, the push-pull tab covers one side surface of the lock body opposite the plug along its length direction, and the outer surface of the push-pull tab opposite the plug along its length direction is provided with an undulating pattern, and the pattern extension direction is perpendicular to the push-pull direction.

[0012] As a further improvement of this utility model, a rib is formed on one side surface of the push-pull tab facing the plug along its length direction. The rib is flat against the side surface of the plug along its length direction, so that the push-pull tab and the side surface of the plug along its length direction together form a lock body receiving cavity that opens towards the socket side, and the lock body can be accommodated in the lock body receiving cavity.

[0013] As a further improvement of this utility model, the length of the plastic shell of the socket is greater than the length of the plastic shell of the plug, and the slots are symmetrically arranged on one side wall at both ends of the length direction of the socket plastic shell, and the end faces of the plug plastic shell extending outward from both ends of the socket plastic shell in the length direction are directly opposite each other.

[0014] The beneficial effects of this utility model are as follows: This utility model hinges a lock body to both sides of the plug along its length, and sets a lock hook and an eccentric fulcrum on the lock body. When the lock body is rotated in the forward direction, the lock hook gradually disengages from the socket's slot, and at the same time, the eccentric fulcrum of the lock body gradually contacts the socket end face. The plug is pried off the socket by rotating the lock body, thus making it easy to pull out the plug, improving the convenience of operation. This utility model also installs push-pull tabs that can slide up and down a set distance on both sides of the plug along its length. The push-pull tabs are connected to the lock body by a sliding pin and a long strip-shaped sliding groove. By pressing down or pulling up the push-pull tabs, the lock body can be rotated in both directions. When inserting or removing the plug, this utility model only requires two fingers to pinch the push-pull tabs located on both sides of the plug along its length to easily insert, lock, unlock, and remove the plug. Its operation does not occupy the space in the width direction of the terminal block, enabling quick insertion and removal of plugs in narrow spaces. Moreover, the overall structure is simple and does not significantly change the overall size of the terminal block. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the plug-out process of this utility model;

[0016] Figure 2 A schematic diagram of the plug and socket insertion and locking process of this utility model.

[0017] Figure 3 This is a front view illustrating the structural principle of this utility model applied to a long terminal block;

[0018] Figure 4 The left view shows the structural principle of this utility model applied to a long terminal block;

[0019] Figure 5 The right view shows the structural principle of this utility model applied to a long terminal block;

[0020] Figure 6 Front view of the plug's plastic housing with long terminal block;

[0021] Figure 7 Top view of the plug's plastic housing with a long terminal block;

[0022] Figure 8 Right view of the plastic housing of the plug with long terminal block;

[0023] Figure 9 This is a front view illustrating the structural principle of this utility model applied to a short terminal block;

[0024] Figure 10 The left view shows the structural principle of this utility model applied to a short terminal block;

[0025] Figure 11 The right view shows the structural principle of this utility model applied to a short terminal block;

[0026] Figure 12 Front view of the plug's plastic housing for the short terminal block;

[0027] Figure 13 Top view of the plug's plastic housing on the short terminal block;

[0028] Figure 14 Right view of the plug's plastic housing for the short terminal block;

[0029] Figure 15 Front view of the lock body used for the long terminal block;

[0030] Figure 16 Right view of the lock body used for the long terminal block;

[0031] Figure 17 Front view of the lock body used for the short terminal block;

[0032] Figure 18 Right view of the lock body used for the short terminal block;

[0033] Figure 19 This is a front view of the push-pull tab of this utility model;

[0034] Figure 20 This is a right view of the push-pull tab of this utility model;

[0035] Figure 21 This is a rear view of the push-pull tab of this utility model. Detailed Implementation

[0036] Example: A terminal block unlocking and pull-out assist structure includes a socket 1 and a plug 2. The plug 2 has a plug pin 21 that can be tightly inserted into the plug slot on the socket 1 to achieve electrical connection. The socket 1 has a slot 11 on at least one side wall along its length. The plug 2 has a lock body 3 hinged to at least one side wall along its length. The lock body 3 has a locking hook 31. The locking hook 31 can disengage from the slot 11 on the socket 1 and unlock when the lock body 3 rotates forward. The locking hook 31 can hook into the slot 11 on the socket 1 and lock when the lock body 3 rotates in the opposite direction. The lock body 3 has an eccentric fulcrum 32. The eccentric fulcrum 32 can gradually contact the end face of the socket 1 and pry up the plug 2 when the lock body 3 rotates forward. The eccentric fulcrum 32 can gradually move away from the end face of the socket 1 when the lock body 3 rotates in the opposite direction, so that the plug 2 and the end of the socket 1 can maintain a stable plug-in and conductive state.

[0037] After inserting the plug 2 into the socket 1, rotate the lock body 3 in the reverse direction so that the locking hook 31 on it hooks into the slot 11 on the socket 1 to lock the plug 2 to the socket 1. At this time, the plug 2 cannot be pulled out directly. When you need to pull out the plug 2, rotate the lock body 3 in the forward direction so that the locking hook 31 on it disengages from the slot 11 on the socket 1. Continue to rotate the lock body 3 so that the eccentric fulcrum 32 on the lock body 3 gradually presses against the upper surface of the socket 1, prying the plug 2 off the socket 1 a distance. At this time, you can easily pull out the plug 2 by lifting it upwards. This utility model has a simple structure. The lock body 3 does not need to extend out of the side wall in the width direction of the terminal block during rotation. It can be used in narrow spaces. By rotating the lock body 3, the plug 2 can be easily pried up using the lever principle, making it easy and convenient to pull out the plug 2.

[0038] The lock body 3 has a triangular plate-like structure. One side of the lock body facing the socket 1 is formed by removing excess material to create an arc-shaped guide contact edge 33 that allows it to roll and contact the end face of the socket 1. One end of the arc-shaped guide contact edge 33 forms a hook 31 at a pointed corner of the triangular plate-like structure near the socket 1. The other end of the arc-shaped guide contact edge 33 smoothly transitions to the other pointed corner of the triangular plate-like structure near the socket 1, forming an eccentric fulcrum 32. The lock body 3 is designed with a triangular structure, making full use of the space inside the triangle. This design is simple and occupies little space. During rotation, the lock body 3 contacts the end face of the socket 1 through the arc-shaped guide contact edge 33, making rotation easy and effortless and preventing interference.

[0039] The plug 2 has a push-pull piece 4 installed on at least one side wall along its length direction, which can slide up and down by a set distance. The side wall of the push-pull piece 4 is provided with a sliding pin 41 or a long strip groove 34 that makes an angle with the vertical direction. The side wall of the lock body 3 is provided with a long strip groove 34 or a sliding pin 41 that is eccentric to the hinge shaft 23. The sliding pin 41 can be slidably inserted into the long strip groove 34. Sliding the push-pull piece 4 up and down can make the sliding pin 41 slide along the long strip groove 34, thereby forcing the lock body 3 to rotate in both directions.

[0040] By installing a sliding push-pull piece 4 on the plug 2, the sliding pin 41 slides along the elongated groove 34 when the push-pull piece 4 is pressed down and pulled up, causing the lock body 3 to rotate in the reverse and forward directions. This allows the operation to be completed simply by pushing and pulling in a narrow space. In addition to using the push-pull piece 4 to drive the lock body 3 to rotate, the plug 2 can also be pulled out and inserted by setting an eccentric protrusion and a hook on the lock body 3. Pushing and pulling the eccentric protrusion or hook can drive the lock body 3 to rotate. This is an equivalent replacement structure that can be easily conceived by those skilled in the art based on this application, and all of them are within the protection scope of this application.

[0041] The push-pull tab 4 is provided with a vertically extending guide groove 42 or a guide protrusion 22. The plug 2 is provided with a guide protrusion 22 or a vertically extending guide groove 42 on its side wall along its length. The guide protrusion 22 can slide up and down along the guide groove 42, thereby limiting and guiding the vertical sliding of the push-pull tab 4. The vertical sliding of the push-pull tab 4 is guided and limited by the vertical sliding of the guide protrusion 22 within the guide groove 42.

[0042] The guide groove 42 on the push-pull plate 4 is an L-shaped stepped groove with a width smaller than that in the direction away from the plug 2. Two guide grooves 42 are symmetrically provided on the push-pull plate 4 along the width direction of the plug 2. Two guide protrusions 22 on the two side walls of the plug 2 along its length direction are symmetrically provided along the width direction of the plug 2. The guide protrusions 22 form a cantilever structure, and the guide protrusions 22 have inverted protrusions 221 on the side wall of the free end of the cantilever structure. The inverted protrusions 221 of the guide protrusions 22 can slide from the narrow side of the L-shaped stepped groove on the push-pull plate 4 to the wide side, and the inverted protrusions 221 on the guide protrusions 22 can stop on the stepped surface of the L-shaped stepped groove on the push-pull plate 4. When installing the push-pull tab 4, simply align the guide protrusion 22 with the guide groove 42, and then press the push-pull tab 4. The inverted protrusion 221 on the guide protrusion 22 passes through the guide groove 42 through the elastic deformation of the guide protrusion 22. Then, while the guide protrusion 22 is reset, the inverted protrusion 221 blocks the step surface of the guide groove 42, realizing the quick installation and positioning of the push-pull tab 4. The above structure makes it convenient for the push-pull tab 4 to be installed on the side wall of the plug 2, and it will not fall off after installation.

[0043] The plug 2 has protruding hinge shafts 23 integrally formed on both sides of its plastic outer shell along its length. The lock body 3 has hinge holes 35, and the hinge shafts 23 are inserted into the hinge holes 35. During installation, simply fit the hinge holes 35 of the lock body 3 onto the hinge shafts 23 on the side walls of the plastic outer shell, then install the push-pull piece 4. The sliding pin 41 on the push-pull piece 4 is inserted into the elongated sliding groove 34 on the lock body 3 to complete the assembly. The assembly is convenient.

[0044] The push-pull tab 4 covers one side of the lock body 3 facing away from the plug 2 along its length. The outer surface of the push-pull tab 4 facing away from the plug 2 along its length is provided with an undulating pattern 43, and the extension direction of the pattern 43 is perpendicular to the push-pull direction. The undulating pattern 43 can increase the friction, and steps can also be provided on the push-pull tab 4 for pushing and pulling.

[0045] A raised rib 44 is formed on one side surface of the push-pull tab 4 facing the plug 2 along its length. The raised rib 44 is flat against the side surface of the plug 2 along its length, so that the push-pull tab 4 and the side surface of the plug 2 together form a locking body 3 receiving cavity that opens towards the socket 1. The locking body 3 can be accommodated in the locking body 3 receiving cavity. The above structure allows the locking body 3 to be hidden in the locking body 3 receiving cavity between the push-pull tab 4 and the side surface of the plug 2, so that it will not fall off or interfere with the push-pull tab 4.

[0046] The length of the plastic shell of the socket 1 is greater than the length of the plastic shell of the plug 2. The slots 11 are symmetrically arranged on one side wall at both ends of the length direction of the plastic shell of the socket 1. The lock bodies 3 are directly opposite the end faces of the portions of the plug 2's plastic shell that extend beyond its outer side. By installing lock bodies 3 at both ends of the length direction of the plastic shell of the socket 1, the plug 2 can be pried up simultaneously from both ends when it is pulled out, preventing damage to the terminals of the plug 2 and the socket 1.

Claims

1. A terminal block unlocking and pull-out assist structure, comprising a socket (1) and a plug (2), wherein the plug pin (21) can be tightly inserted into the socket slot to achieve electrical connection, characterized in that: The socket has a slot (11) on at least one side wall along its length, and the plug has a lock body (3) hinged to at least one side wall along its length. The lock body has a lock hook (31). The lock hook can disengage from the slot on the socket and unlock as the lock body rotates forward. The lock hook can hook into the slot on the socket and lock as the lock body rotates in the opposite direction. The lock body has an eccentric fulcrum (32). The eccentric fulcrum can gradually contact the end face of the socket and pry up the plug as the lock body rotates forward. The eccentric fulcrum can gradually move away from the end face of the socket as the lock body rotates in the opposite direction, so that the plug and the socket end can maintain a stable plug-in and conduction state.

2. The terminal block unlocking and pull-out assist structure according to claim 1, characterized in that: The lock body has a triangular plate structure. One side of the lock facing the socket is formed by removing the material to create an arc-shaped guide contact edge (33) that can roll into contact with the end face of the socket. One end of the arc-shaped guide contact edge forms a hook structure at a sharp corner of the triangular plate structure near the socket. The other end of the arc-shaped guide contact edge smoothly transitions to another sharp corner of the triangular plate structure near the socket to form an eccentric fulcrum.

3. The terminal block unlocking and pull-out assist structure according to claim 1 or 2, characterized in that: The plug is also equipped with a push-pull piece (4) that can slide up and down a set distance on at least one side wall along its length direction. The push-pull piece has a sliding pin (41) or a long strip groove with an angle to the vertical direction on its side wall. The lock body has a long strip groove (34) or a sliding pin that is eccentric to the hinge axis on its side wall. The sliding pin can be slidably inserted into the long strip groove. Sliding the push-pull piece up and down can make the sliding pin slide along the long strip groove, thereby forcing the lock body to rotate in both directions.

4. The terminal block unlocking and pull-out assist structure according to claim 3, characterized in that: The push-pull tab is provided with a guide groove (42) extending vertically or a guide protrusion. The plug is provided with a guide protrusion (22) or a guide groove extending vertically on its side wall along its length direction. The guide protrusion can slide up and down along the guide groove to limit and guide the push-pull tab to slide up and down.

5. The terminal block unlocking and pull-out assist structure according to claim 4, characterized in that: The guide groove on the push-pull tab is an L-shaped stepped groove with a width smaller than that away from the plug direction. Two guide grooves are symmetrically arranged on the push-pull tab along the width direction of the plug. Two guide protrusions are symmetrically arranged on the two side walls of the plug along its length direction. The guide protrusions form a cantilever structure. An inverted protrusion (221) is formed on the side wall of the free end of the cantilever structure. The inverted protrusion of the guide protrusion can slide from the narrow side of the L-shaped stepped groove on the push-pull tab to the wide side. The inverted protrusion on the guide protrusion can stop on the stepped surface of the L-shaped stepped groove on the push-pull tab.

6. The terminal block unlocking and pull-out assist structure according to claim 5, characterized in that: The plug has protruding hinge shafts (23) integrally formed on both sides of its plastic shell along its length direction. The lock body is provided with hinge holes (35), and the hinge shafts are inserted into the hinge holes.

7. The terminal block unlocking and pull-out assist structure according to claim 3, characterized in that: The push-pull tab covers one side surface of the lock body opposite the plug along its length direction. The outer surface of the push-pull tab opposite the plug along its length direction is provided with a textured pattern (43), and the pattern extends perpendicular to the push-pull direction.

8. The terminal block unlocking and pull-out assist structure according to claim 7, characterized in that: A rib (44) is formed on one side surface of the push-pull tab facing the plug along its length direction. The rib is flat against the side surface of the plug along its length direction, so that the push-pull tab and the side surface of the plug along its length direction together form a lock body receiving cavity that opens towards the socket side, and the lock body can be accommodated in the lock body receiving cavity.

9. The terminal block unlocking and pull-out assist structure according to claim 1, characterized in that: The length of the plastic shell of the socket is greater than the length of the plastic shell of the plug. The slots are symmetrically arranged on one side wall at both ends of the length direction of the socket plastic shell. The lock body is directly opposite the end face of the part of the plug plastic shell that extends outward from the end face of the socket plastic shell at both ends of the length direction.

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