IO terminal block locking mechanism

Abstract

The utility model discloses an IO terminal block lock catch mechanism, which comprises a socket and a plug, the plug can be plugged and conducted with the socket, the socket is provided with a first buckle, the side wall of the plug is provided with a second buckle capable of elastically moving, and when the plug is plugged into the socket, the second buckle on the side wall of the plug can be buckled and connected with the first buckle. An unlocking handle is further arranged on the side wall of the plug in a sliding mode by a set distance, the unlocking handle is in close contact with the second buckle through an inclined face, and the unlocking handle slides to force the second buckle to overcome the elastic force of the second buckle to move towards the releasing direction of the first buckle. When the first buckle and the second buckle are automatically locked and unlocked, the first buckle and the second buckle can be released and unlocked only by lifting the unlocking handle, so that the unlocking mechanism can complete unlocking in a narrow space, the operation is convenient, after unlocking is completed, the unlocking handle and the second buckle can be automatically reset, and automatic locking is ensured when the plug and the socket are plugged again.

Description

Technical Field

[0001] This utility model relates to an I / O terminal block, and more particularly to an I / O terminal block locking mechanism. Background Technology

[0002] The existing I / O terminal block's latching structure consists of a hook on the socket and a cantilevered plastic handle on the plug. The plug and socket are locked by the hook on the plastic handle engaging with the step on the socket. To unlock, the plug is pulled out by pressing the head of the plastic handle with a finger to release the hook.

[0003] When the socket housing size is limited and there is not enough space to accommodate a finger, the plug of the terminal block is difficult to pull out, which will cause inconvenience to the user. Summary of the Invention

[0004] To overcome the above-mentioned defects, this utility model provides an IO terminal block locking mechanism, which enables normal insertion and removal of the terminal block in scenarios where the space of the socket housing is small.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: an IO terminal block locking mechanism, including a socket and a plug, wherein the plug can be inserted into the socket for conduction, the socket is provided with a first buckle, and the side wall of the plug is provided with a second buckle that can move elastically. When the plug is inserted into the socket, the second buckle on the side wall of the plug can be engaged with the first buckle. The side wall of the plug is also provided with an unlocking handle that can slide a set distance. The unlocking handle and the second buckle are in close contact through an inclined surface. The sliding of the unlocking handle can force the second buckle to overcome its own elastic force and move in the direction of disengaging from the first buckle.

[0006] As a further improvement of this utility model, the second buckle includes an elastic cantilever structure integrally formed on the side wall of the plug and a hook provided at the free end of the elastic cantilever structure. The first buckle is a stepped surface provided on the inner side wall of the socket. The elastic cantilever structure and the hook at its end can be inserted into the socket, and the elastic restoring force of the elastic cantilever structure enables the hook to hook onto the stepped surface on the inner side wall of the socket. The side wall of the elastic cantilever structure is provided with an unlocking protrusion, and a first contact slope is formed on the unlocking protrusion. The unlocking handle is provided with a second contact slope that has an angle with its sliding direction, and the second contact slope is in close contact with the first contact slope.

[0007] As a further improvement of this utility model, the unlocking handle includes a sliding body, an unlocking collar, and a lifting piece. The sliding body is installed on the side wall of the plug and can slide a set distance. The unlocking collar is fixedly mounted on the sliding body and is sleeved on the outside of the elastic cantilever structure. The second contact inclined surface is located on the inner side wall of the unlocking collar. The lifting piece is fixedly connected to the sliding body and is always exposed on the outside of the plug facing away from the socket.

[0008] As a further improvement of this utility model, the plug sidewall is provided with a straight track extending in the same direction as the elastic cantilever structure. The sliding body of the unlocking handle can be slidably sleeved on the straight track. A stop step is provided on one end of the straight track near the root of the elastic cantilever structure. The sliding body is stopped on the stop step, so that the sliding body cannot continue to slide from the free end of the elastic cantilever structure toward the root. The unlocking collar of the unlocking handle is stopped on the step structure formed between the hook and the elastic cantilever structure in the direction of the free end of the cantilever structure.

[0009] As a further improvement of this utility model, the cross-section of the straight track on the side wall of the plug is a T-shaped structure, and the cross-section of the sliding body of the unlocking handle is a matching C-shaped structure.

[0010] As a further improvement of this utility model, the sliding body is provided with an elastic arm that can elastically swing along the sliding direction of the sliding body. The free end of the elastic arm is provided with a protrusion or groove, and the side wall of the plug is provided with a groove or protrusion. The protrusion or groove on the free end of the elastic arm is inserted into the groove or protrusion on the side wall of the plug. The sliding body can force the elastic arm to elastically swing when it slides on the side wall of the plug. After the unlocking handle loses external force, the elastic arm can automatically elastically reset and drive the sliding body to reset to the initial position of the locked state.

[0011] As a further improvement of this utility model, a convex post guide groove with a sloping bottom surface is provided on one end edge of the plug sidewall near the free end of the elastic cantilever structure. The convex post on the free end of the elastic arm can be inserted into the convex post guide groove, and the end face of the convex post can slide along the bottom surface of the convex post guide groove and force the elastic arm to produce elastic deformation along the convex post axis.

[0012] As a further improvement of this utility model, the lifting piece of the unlocking handle is provided with a hollow part, and hardware tools can be inserted into the hollow part to lift the lifting piece of the unlocking handle.

[0013] As a further improvement of this utility model, the lifting plate of the unlocking handle is hinged with a handle that can rotate at a set angle. Rotating the handle to the set angle can easily pull the unlocking handle to the unlocking position.

[0014] As a further improvement of this utility model, the elastic cantilever structure consists of two spaced-apart structures on the side wall of the plug. The elastic cantilever structure is an L-shaped structure. The sliding body of the unlocking handle is accommodated in the gap between the elastic cantilever structure and the side wall of the plug. The lifting piece of the unlocking handle extends out through the gap between the two elastic cantilever structures to the outside of the plug's back socket end.

[0015] The beneficial effects of this utility model are as follows: This utility model slidably installs an unlocking handle on the side wall of the plug. The unlocking handle contacts the second latch on the side wall of the plug via an inclined surface. Sliding the unlocking handle can cause the second latch to overcome its own elastic force and disengage from the first latch. The second latch of this utility model adopts an elastic cantilever structure. An unlocking collar is provided on the unlocking handle, which is sleeved on the outside of the elastic cantilever structure. By lifting the lifting piece extending from the outside of the plug, the unlocking collar slides along the elastic cantilever structure, thereby causing the elastic cantilever structure, which serves as the second latch, to elastically swing and disengage. This utility model also... The lifting plate has a hollowed-out section for inserting hardware tools to pry it open and unlock. Alternatively, a handle can be hinged to the lifting plate, allowing unlocking by rotating the handle to a suitable angle and pulling it. After the plug and socket are connected, the first and second latches automatically lock. To unlock, there is no need to press the elastic cantilever structure; simply pull the unlocking handle to disengage the first and second latches. This allows the unlocking mechanism to be used even in confined spaces, making it convenient to operate. After unlocking, the unlocking handle and second latches automatically reset, ensuring automatic locking when the plug and socket are connected again. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the first structure of this utility model;

[0017] Figure 2 This is a three-dimensional view of the first type of unlocking handle of this utility model;

[0018] Figure 3 This is the first front view of the unlocking handle of this utility model;

[0019] Figure 4 for Figure 3 Sectional view along line AA;

[0020] Figure 5 This is a perspective view of the plug of this utility model without the unlocking handle installed;

[0021] Figure 6 This is a front view of the plug of this utility model without the unlocking handle installed;

[0022] Figure 7 This is a left view of the plug of this utility model without the unlocking handle installed;

[0023] Figure 8 This is a front view of the unlocking handle reset structure principle of this utility model;

[0024] Figure 9 This is a left view of the principle of the unlocking handle reset structure of this utility model;

[0025] Figure 10 This is a schematic diagram of the unlocking handle of this utility model in its initial state;

[0026] Figure 11 This is a schematic diagram of the unlocking handle of this utility model in the unlocked state;

[0027] Figure 12 This is a front view of the plug and socket in the locked state of the first structure of this utility model;

[0028] Figure 13 This is a front view of the plug and socket in the unlocked state of the first structure of this utility model;

[0029] Figure 14 This is a front view of the plug and socket in the locked state of the second structure of this utility model;

[0030] Figure 15 This is a front view of the plug and socket in the unlocked state of the second structure of this utility model;

[0031] Figure 16 This is a perspective view of the second structure of this utility model;

[0032] Figure 17 This is an exploded view of the second structure of this utility model. Detailed Implementation

[0033] Example: An IO terminal block locking mechanism includes a socket and a plug 1. The plug 1 can be inserted into the socket for communication. The socket is provided with a first latch 2. The side wall of the plug 1 is provided with a second latch that can move elastically. When the plug 1 is inserted into the socket, the second latch on the side wall of the plug 1 can be engaged with the first latch 2. The side wall of the plug 1 is also provided with an unlocking handle 3 that can slide a set distance. The unlocking handle 3 is in close contact with the second latch through an inclined surface. The sliding of the unlocking handle 3 can force the second latch to overcome its own elastic force and move in the direction of disengaging from the first latch 2.

[0034] When plug 1 is inserted into the socket, the second latch on the side wall of plug 1 automatically engages and locks with the first latch 2 on the socket. At this time, plug 1 will not detach from the socket even under pulling force. To unplug plug 1 from the socket, first slide the unlocking handle 3. The inclined surface on the unlocking handle 3 contacts the inclined surface on the second latch, forcing the second latch to overcome the elastic holding force and move, thereby disengaging the second latch from the first latch 2, thus unlocking plug 1 from the socket. After unlocking, plug 1 can be easily unplugged from the socket. This solution avoids pressing the second latch to make it retract from the first latch 2 during unlocking. Unlocking can be achieved simply by sliding the unlocking handle 3, which is convenient and can be used in situations where the space between the socket and plug 1 is small.

[0035] The second buckle includes an elastic cantilever structure 4 integrally formed on the side wall of the plug 1 and a hook 5 provided at the free end of the elastic cantilever structure 4. The first buckle 2 is a stepped surface provided on the inner side wall of the socket. The elastic cantilever structure 4 and the hook 5 at its end can be inserted into the socket, and the elastic restoring force of the elastic cantilever structure 4 enables the hook 5 to hook onto the stepped surface on the inner side wall of the socket. The side wall of the elastic cantilever structure 4 is provided with an unlocking protrusion 6, on which a first contact slope 61 is formed. The unlocking handle 3 is provided with a second contact slope 7 at an angle to its sliding direction. The second contact slope 7 is in close contact with the first contact slope 61.

[0036] By sliding the unlocking handle 3, the second contact slope 7 on the unlocking handle 3 slides relative to the first contact slope 61 on the elastic cantilever structure 4, thereby forcing the elastic cantilever structure 4 to swing elastically, causing the hook 5 at its free end to disengage from the stepped surface on the inner wall of the socket, thus unlocking the plug 1 from the socket.

[0037] The unlocking handle 3 includes a sliding body 31, an unlocking collar 32, and a lifting piece 33. The sliding body 31 is installed on the side wall of the plug 1 and can slide a set distance. The unlocking collar 32 is fixedly mounted on the sliding body 31 and is sleeved on the outside of the elastic cantilever structure 4. The second contact inclined surface 7 is located on the inner side wall of the unlocking collar 32. The lifting piece 33 is fixedly connected to the sliding body 31 and is always exposed on the outside of the plug 1 facing away from the socket.

[0038] The unlocking handle 3 is slidably mounted on the side wall of the plug 1 via the sliding body 31. The unlocking collar 32 is fitted onto the outside of the elastic cantilever structure 4 to achieve contact between the second contact slope 7 and the first contact slope 61. The lifting operation is performed by the lifting plate 33. The operation is convenient and ensures that the second contact slope 7 and the first contact slope 61 always maintain a tight contact state, avoiding the failure of unlocking by sliding the unlocking handle 3.

[0039] The plug 1 has a straight track 8 extending in the same direction as the elastic cantilever structure 4 on its side wall. The sliding body 31 of the unlocking handle 3 is slidably fitted onto the straight track 8. The straight track 8 has a stop step 81 at one end near the root of the elastic cantilever structure 4. The sliding body 31 stops on the stop step 81, preventing the sliding body 31 from continuing to slide from the free end of the elastic cantilever structure 4 toward the root. The unlocking collar 32 of the unlocking handle 3 stops on the step structure formed between the hook 5 and the elastic cantilever structure 4 toward the free end of the cantilever structure.

[0040] The sliding body 31 of the unlocking handle 3 slides linearly along the straight track 8 on the side wall of the plug 1. The second contact slope 7 and the first contact slope 61 slide relative to each other along the direction of extension of the elastic cantilever structure 4, forcing the elastic cantilever structure 4 to swing elastically. Of course, the first contact slope 61 and the second contact slope 7 can also be designed to extend in a direction perpendicular to the direction of extension of the elastic cantilever structure 4, and the unlocking handle 3 slides in a direction perpendicular to the elastic cantilever structure 4. In addition, the unlocking handle 3 can also be installed on the plug 1 by sliding or rotating along a curve, and contacting the second contact slope 7 extending along a curve or arc route with the first contact slope 61 extending along the same curve or arc route. These are equivalent replacement structures that can be easily conceived by those skilled in the art based on this application, and all fall within the protection scope of this application.

[0041] The linear track 8 on the side wall of the plug 1 has a T-shaped cross-section, and the sliding body 31 of the unlocking handle 3 has a matching C-shaped cross-section. The linear guide rail can also be a T-shaped groove on the side wall of the plug 1, and the sliding body 31 is provided with a T-shaped slider, which slides in the T-shaped groove to achieve guidance.

[0042] The sliding body 31 is provided with an elastic arm 9 that can elastically swing along the sliding direction of the sliding body 31. The free end of the elastic arm 9 is provided with a protrusion 10 or a groove 11, and the side wall of the plug 1 is provided with a groove 11 or a protrusion 10. The protrusion 10 or groove 11 on the free end of the elastic arm 9 is inserted into the groove 11 or protrusion 10 on the side wall of the plug 1. The sliding body 31 slides on the side wall of the plug 1, which can force the elastic arm 9 to swing elastically. After the unlocking handle 3 loses external force, the elastic arm 9 can automatically elastically reset and drive the sliding body 31 to reset to the initial position of the locked state. When the unlocking handle 3 is pulled up, the protrusion 10 on the free end of the elastic arm 9 on the sliding body 31 is restricted by the groove 11 on the side wall of the plug 1, causing the elastic arm 9 on the sliding body 31 to deform. After the plug 1 is unlocked and pulled out of the socket, after the unlocking handle 3 is released, the elastic arm 9 will elastically return to its initial state, which will cause the unlocking handle 3 to automatically reset to the initial position for easy use next time.

[0043] The plug 1 has a convex guide groove 12 with a sloping bottom surface on one end edge of its side wall near the free end of the elastic cantilever structure 4. The convex post 10 on the free end of the elastic arm 9 can be inserted into the convex guide groove 12, and the end face of the convex post 10 can slide along the bottom surface of the convex guide groove 12 and force the elastic arm 9 to produce elastic deformation along the axial direction of the convex post 10. When the elastic arm 9 is provided with a protruding post 10, in order to avoid interference between the plug 1 and the protruding post 10 when assembling the unlocking handle 3, a protruding post guide groove 12 with a sloping bottom surface is provided at the end edge of the plug 1. When assembling the unlocking handle 3, first align the protruding post 10 on it with this protruding post 10 guide groove, and then push the sliding body 31 upward. As the sliding body 31 moves upward, the unlocking collar 32 connected to the sliding body 31 is fitted on the outside of the elastic cantilever structure 4 and slides upward synchronously. The hook 5 on the elastic cantilever structure 4 is an inverted structure. It is squeezed back by the side wall of the unlocking collar 32, so that the elastic cantilever structure 4 elastically deforms to avoid it. When the unlocking handle 3 moves up to a certain height, the protruding post 10 is automatically inserted into the groove 11 on the plug 1 by the elastic action of the elastic arm 9 to achieve the positioning of the unlocking handle 3.

[0044] The lifting plate 33 of the unlocking handle 3 has a hollow part 13, into which a hardware tool can be inserted to pull the lifting plate 33 of the unlocking handle 3. When unlocking, the hardware tool can be inserted into the hollow part 13 of the lifting plate 33 and the lifting plate 33 can be pried upward, allowing the lifting plate 33 to slide upward smoothly. As the lifting plate 33 moves upward, the second buckle and the first buckle 2 unlock simultaneously, and the lifting plate 33 applies an upward pulling force to the plug 1, automatically pulling the plug 1 out of the socket. Using a hardware tool inserted into the hollow part 13 of the lifting plate 33 for operation utilizes the lever principle, making the operation labor-saving and not occupying the space between the socket and the plug 1, allowing operation in confined spaces.

[0045] The lifting plate 33 of the unlocking handle 3 is hinged to a handle 14 that can rotate at a set angle. Rotating the handle 14 to the set angle can easily pull the unlocking handle 3 to the unlocking position.

[0046] When unlocking, first rotate the handle 14 to a suitable angle, then pull the handle 14 upward. After the handle 14 is subjected to an upward pulling force F, it moves upward, which in turn drives the unlocking handle 3 to move upward in sync, thereby unlocking the plug 1 from the socket. After unlocking, as the handle 14 continues to pull upward, the plug 1 is pulled out of the socket.

[0047] The elastic cantilever structure 4 consists of two L-shaped structures spaced apart on the side wall of the plug 1. The sliding body 31 of the unlocking handle 3 is accommodated in the gap between the elastic cantilever structure 4 and the side wall of the plug 1. The lifting tab 33 of the unlocking handle 3 extends out through the gap between the two elastic cantilever structures 4 from the outside of the plug 1 facing away from the socket. The two cantilever structures are used to lock the plug 1 and the socket. After locking, the plug 1 and the socket are firmly connected and not easily detached. Even under large pulling force, the plug 1 will not be pulled out. The overall locking structure has high strength and good stability. The lifting tab 33 extends from the gap between the two cantilever structures. When the lifting tab 33 is pulled upwards, the two elastic cantilever structures 4 are symmetrically stressed, preventing the unlocking handle 3 from tilting and ensuring smooth unlocking.

Claims

1. An I / O terminal block locking mechanism, comprising a socket and a plug (1), wherein the plug is capable of being inserted into the socket for electrical connection, characterized in that: The socket is provided with a first buckle (2), and the plug sidewall is provided with a second buckle that can move elastically. When the plug is inserted into the socket, the second buckle on the plug sidewall can be engaged with the first buckle. The plug sidewall is also provided with an unlocking handle (3) that can slide a set distance. The unlocking handle and the second buckle are in close contact through an inclined surface. The sliding of the unlocking handle can force the second buckle to overcome its own elastic force and move in the direction of disengaging from the first buckle.

2. The IO terminal block locking mechanism according to claim 1, characterized in that: The second buckle includes an elastic cantilever structure (4) integrally formed on the side wall of the plug and a hook (5) provided at the free end of the elastic cantilever structure. The first buckle is a stepped surface provided on the inner side wall of the socket. The elastic cantilever structure and the hook at its end can be inserted into the socket. The elastic restoring force of the elastic cantilever structure enables the hook to hook onto the stepped surface on the inner side wall of the socket. The side wall of the elastic cantilever structure is provided with an unlocking protrusion (6). A first contact slope (61) is formed on the unlocking protrusion. The unlocking handle is provided with a second contact slope (7) that has an angle with its sliding direction. The second contact slope is in close contact with the first contact slope.

3. The IO terminal block locking mechanism according to claim 2, characterized in that: The unlocking handle includes a sliding body (31), an unlocking collar (32), and a lifting piece (33). The sliding body is installed on the side wall of the plug and can slide a set distance. The unlocking collar is fixedly installed on the sliding body and is sleeved on the outside of the elastic cantilever structure. The second contact slope is located on the inner side wall of the unlocking collar. The lifting piece is fixedly connected to the sliding body and is always exposed on the outside of the plug facing away from the socket.

4. The IO terminal block locking mechanism according to claim 3, characterized in that: The plug sidewall is provided with a straight track (8) extending in the same direction as the elastic cantilever structure. The sliding body of the unlocking handle can be slidably fitted onto the straight track. A stop step (81) is provided on one end of the straight track near the root of the elastic cantilever structure. The sliding body is stopped on the stop step, so that the sliding body cannot continue to slide from the free end of the elastic cantilever structure toward the root. The unlocking collar of the unlocking handle is stopped on the step structure formed between the hook and the elastic cantilever structure in the direction of the free end of the cantilever structure.

5. The IO terminal block locking mechanism according to claim 4, characterized in that: The straight track on the side wall of the plug has a T-shaped cross-section, and the sliding body of the unlocking handle has a matching C-shaped cross-section.

6. The IO terminal block locking mechanism according to claim 3, characterized in that: The sliding body is provided with an elastic arm (9) that can swing elastically along the sliding direction of the sliding body. The free end of the elastic arm is provided with a protrusion (10) or a groove. The side wall of the plug is provided with a groove (11) or a protrusion. The protrusion or groove on the free end of the elastic arm is inserted into the groove or protrusion on the side wall of the plug. The sliding body can force the elastic arm to swing elastically when it slides on the side wall of the plug. After the unlocking handle loses external force, the elastic arm can automatically and elastically reset and drive the sliding body to reset to the initial position of the locked state.

7. The IO terminal block locking mechanism according to claim 6, characterized in that: The plug sidewall has a convex guide groove (12) with a sloping bottom surface on one end edge near the free end of the elastic cantilever structure. The convex on the free end of the elastic arm can be inserted into the convex guide groove, and the end face of the convex can slide along the bottom surface of the convex guide groove and force the elastic arm to produce elastic deformation along the convex axis.

8. The IO terminal block locking mechanism according to claim 3, characterized in that: The pull tab of the unlocking handle has a hollow part (13), and hardware tools can be inserted into the hollow part to pull the pull tab of the unlocking handle.

9. The IO terminal block locking mechanism according to claim 3, characterized in that: The lifting plate of the unlocking handle is hinged with a handle (14) that can rotate at a set angle. Rotating the handle to the set angle can easily pull the unlocking handle to the unlocking position.

10. The I / O terminal block locking mechanism according to claim 3, characterized in that: The elastic cantilever structure consists of two spaced-apart structures on the side wall of the plug. The elastic cantilever structure is L-shaped. The sliding body of the unlocking handle is accommodated in the gap between the elastic cantilever structure and the side wall of the plug. The lifting tab of the unlocking handle extends out through the gap between the two elastic cantilever structures to the outside of the plug's back socket end.

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