Terminal block structure with terminal connection function

Abstract

The application discloses a terminal block structure with a wire connection function. A conductive contact surface at one end of a conductive terminal is fixed in a wire connection cavity of an insulating body. One end of an elastic sheet is fixed in the wire connection cavity. The other end of the elastic sheet and the conductive contact surface jointly form a wire conduction clamping structure. A cam locking mechanism in the wire connection cavity comprises a locking cam rotatably installed in the wire connection cavity and a trigger unlocking arm. A cam surface of the locking cam can tightly abut against a side wall of the elastic sheet to make the elastic sheet elastically deform. When the cam surface of the locking cam is positively rotated to a set angle, the locking cam can be self-locked. When the locking cam is self-locked, the other end of the trigger unlocking arm fixed to the locking cam is located on a wire inlet path. The end of a wire inserted into the wire connection cavity from a wire inlet hole can tightly abut against the other end of the trigger unlocking arm to make the other end of the trigger unlocking arm drive the cam to reversely rotate and get out of the self-locked state. A handle can unidirectionally drive the locking cam to positively rotate to the set angle. The application can realize one-hand operation of the terminal block, can guarantee wire insertion depth and effective conduction.

Description

TECHNICAL FIELD

[0001] The present application relates to a connector, in particular to a terminal block structure with a wire connection function. BACKGROUND

[0002] The conventional terminal block structure with a wire connection function is that one end of the elastic sheet is fixed and positioned with the conductive terminal or the insulating body, the other end of the elastic sheet forms a cantilever structure, which cooperates with the conductive contact surface of the conductive terminal to realize clamping and conducting of the wire inserted from the wire insertion hole, when connecting and disconnecting the wire, an external tool or handle is needed to press the elastic sheet to deform and release the wire, since the elastic sheet has the automatic elastic reset ability, when connecting and disconnecting the wire, the external tool or handle needs to be pressed while the wire is inserted, which leads to inconvenience in connecting and disconnecting the wire, time consumption and difficulty in improving the construction efficiency. SUMMARY

[0003] In order to overcome the above defects, the present application provides a terminal block structure with a wire connection function, which can realize one-handed wire connection and disconnection, has a simple structure and is convenient to operate.

[0004] The technical scheme adopted by the present application to solve the technical problems is as follows: a terminal block structure with a wire connection function, comprising an insulating body, a conductive terminal, an elastic sheet and a handle, the insulating body is internally formed with a wire cavity, the side wall of the insulating body is provided with a wire insertion hole communicating with the wire cavity, the conductive contact surface of one end of the conductive terminal is fixedly inserted into the wire cavity, one end of the elastic sheet is stoppered in the wire cavity, the other end of the elastic sheet and the conductive contact surface of the conductive terminal jointly form a conducting and clamping structure capable of clamping the wire inserted from the wire insertion hole, the elastic sheet can be elastically deformed to move the other end thereof towards the direction away from the conductive contact surface of the conductive terminal, the handle can be installed on the insulating body within a set range, one end of the handle extends outside the insulating body to form a manual operation part, the other end of the handle is located in the wire cavity, a cam locking mechanism is further provided in the wire cavity, the cam locking mechanism comprises a locking cam and a trigger unlocking arm, the locking cam can be installed in the wire cavity to rotate by a set angle, the cam surface of the locking cam can abut against the side wall of the elastic sheet to elastically deform the elastic sheet when the locking cam rotates, when the cam surface of the locking cam is positively rotated to the set angle, the elastic pressure of the elastic sheet acting on the locking cam is in the radial direction of the locking cam axis, so that the locking cam is self-locked, one end of the trigger unlocking arm is fixedly connected with the locking cam, the other end of the trigger unlocking arm rotates synchronously with the cam, when the cam is rotated to the self-locked state, the other end of the trigger unlocking arm is just located on the wire insertion path in the wire cavity inserted from the wire insertion hole, the end of the wire inserted into the wire cavity from the wire insertion hole can abut against the other end of the trigger unlocking arm to drive the cam to reversely rotate and escape from the self-locked state, when the handle moves on the insulating body, the other end of the handle can unidirectionally drive the locking cam to positively rotate to the set angle.

[0005] As a further improvement of the present application, the trigger unlocking arm is further provided with an avoiding gap structure opposite to the elastic sheet, and the other end of the elastic sheet can extend into the wire inlet path to form a conduction clamping structure together with the conductive contact surface.

[0006] As a further improvement of the present application, the trigger unlocking arm is in L-shaped structure, one section of which is fixedly connected with the cam surface at the axial one end of the locking cam to form an integrated structure, and the other section can extend into the wire inlet path to form the trigger part of the self-locking unlocking of the locking cam, and the space surrounded between the two sections of the trigger unlocking arm forms the avoiding gap structure opposite to the elastic sheet.

[0007] As a further improvement of the present application, two limiting stop structures are provided in the wire connection cavity along the rotation direction of the locking cam, and the two side walls of the locking cam along the rotation direction are respectively stopped on the two limiting stop blocks to limit the rotation angle of the locking cam, and when the locking cam is rotated to the set angle, the side wall thereof is just in contact with one limiting stop block to prevent the further forward movement, and when the other side wall of the locking cam is just in contact with the other limiting stop block to prevent the further reverse rotation, the other end of the trigger unlocking arm is completely separated from the wire inlet path.

[0008] As a further improvement of the present application, a limiting block and an arc-shaped limiting slot are provided on the other side wall of the locking cam, and the limiting stop structure on the inner side wall of the wire connection cavity at one side of the locking cam includes a limiting slot and an arc-shaped limiting protrusion, the limiting block on the other side wall of the locking cam can be inserted into the limiting slot on the inner side wall of the wire connection cavity, and the arc-shaped limiting protrusion on the inner side wall of the wire connection cavity can be inserted into the arc-shaped limiting slot on the other side wall of the locking cam to limit the reverse rotation angle of the locking cam.

[0009] As a further improvement of the present application, the handle can be rotated by a set angle and is mounted on the insulating body, an axial protruding knob is provided on the axial one end surface of the locking cam, and the side wall of the handle is stopped on the front side wall of the knob to prevent the reverse rotation, and the forward rotation of the handle can push the knob of the locking cam to rotate forward synchronously.

[0010] As a further improvement of the present application, the locking cam has a convex shaft structure formed on one end face, and a shaft groove structure formed on the other end face. The other end of the handle has an end portion with a shaft hole. The convex shaft structure on the one end face of the locking cam can be inserted into the shaft hole of the end portion of the other end of the handle. The length of the convex shaft structure on the locking cam is less than the length of the shaft hole of the end portion of the other end of the handle. The wiring cavity of the insulating body has positioning convex shafts on the two opposite side walls, respectively. The positioning convex shafts are inserted into the shaft groove structure on the other end face of the locking cam and the shaft hole of the end portion of the other end of the handle, respectively, to achieve coaxial connection of the locking cam and the handle that can rotate relative to each other.

[0011] As a further improvement of the present application, the wiring cavity of the insulating body has concave arc-shaped slides and convex arc-shaped slides concentric with the handle rotating shaft on the two opposite side walls on the inner side. The handle has guide protrusions and guide grooves on the two opposite side walls, respectively. The guide protrusions are slidably inserted into the concave arc-shaped slides, and the guide grooves are slidably sleeved on the outer side of the convex arc-shaped slides.

[0012] As a further improvement of the present application, the concave arc-shaped slide has an interference protrusion on one end side wall. The interference protrusion can provide friction resistance for the guide protrusion to move away from the limit position of the forward rotation and the reverse rotation.

[0013] As a further improvement of the present application, the side wall of the elastic sheet has an arc-shaped bending portion formed by bending. The convex arc surface of the arc-shaped bending portion faces the side of the locking cam. The cam surface of the locking cam includes an arc-shaped guide surface and a convex arc-shaped locking surface. The distance between the one end of the arc-shaped guide surface and the center of the locking cam is greater than the distance between the other end of the arc-shaped guide surface and the center of the locking cam. The convex arc-shaped locking surface is located at the one end of the arc-shaped guide surface.

[0014] The beneficial effects of the present application are: the present application sets the locking cam mechanism in the insulating body, drives the locking cam to rotate through the handle, extrudes the side wall of the spring sheet through the cam surface of the locking cam, deforms the spring sheet, and then opens the other end of the spring sheet and the conductive contact surface of the conductive terminal to realize wiring or wire removal. When wiring or wire removal, the locking cam and the spring sheet side wall are in close contact to form self-locking, which can keep the stable position unchanged, and then the spring sheet keeps the open conduction wire clamping structure state, the worker can insert and pull out the wire in the open state of the spring sheet, and the construction does not need any tool, and the single-handed operation can be realized. After the wire is inserted into the wiring cavity of the insulating body, the wire end gradually moves against the other end of the trigger unlocking arm, and then drives the locking cam to reverse a certain angle, breaks the self-locking state, and makes the locking cam reverse rotation and reset under the action of the spring force of the spring sheet, and then the other end of the spring sheet can be automatically reset to clamp the wire, without manually pulling the handle, and the situation that the worker forgets to reset the spring sheet after wiring, resulting in that the wire is not clamped and the wiring fails, is avoided. The present application has the advantages of simple structure, convenient operation, one-handed wiring and wire removal operation of the terminal block, low overall manufacturing cost of the terminal block, easy assembly, and the like. Meanwhile, the present application can also ensure the wire insertion depth and ensure effective clamping and conduction. The handle of the present application can only drive the locking cam to rotate in one direction, preventing the spring sheet from being reset after being opened, and preventing the handle from being misoperated to cause the spring sheet to reset and fail to be successfully wired or wired. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the locking cam of the present application in the initial state.

[0016] Figure 2 It is a front view of the locking cam of the present application in the self-locking state.

[0017] Figure 3 It is a reset state diagram of the handle of the present application after the self-locking of the locking cam.

[0018] Figure 4 It is a diagram of the present application in the wire insertion state.

[0019] Figure 5 It is a diagram of the present application in the wire complete insertion state.

[0020] Figure 6 It is a first structure perspective view of the present application.

[0021] Figure 7 It is a first structure perspective exploded view of the present application.

[0022] Figure 8 It is a second structure perspective view of the present application.

[0023] Figure 9 It is a second structure perspective exploded view of the present application.

[0024] Figure 10 Figure 6 is a perspective view of the spring and conductive electronic assembly structure of the present application;

[0025] Figure 11 Figure 7 is a perspective view of the handle and locking cam mechanism assembly structure of the present application;

[0026] Figure 12 Figure 8 is a perspective view of the locking cam mechanism of the present application;

[0027] Figure 13 Figure 9 is a front view of the locking cam mechanism of the present application. DETAILED DESCRIPTION

[0028] Embodiment: A terminal block structure with a wire connection function, comprising an insulating body 1, a conductive terminal 2, a spring 3, and a handle 4, the insulating body 1 has a wire connection cavity 11 formed inside, the insulating body 1 has a wire inlet hole 12 on the side wall that is in communication with the wire connection cavity 11, the conductive terminal 2 has a conductive contact surface 21 at one end that is fixedly inserted into the wire connection cavity 11, the spring 3 has one end that is fixedly arranged in the wire connection cavity 11, the other end of the spring 3 and the conductive contact surface 21 of the conductive terminal 2 together form a conductive clamping structure that can clamp a wire 7 that is inserted from the wire inlet hole 12, the spring 3 can elastically deform so that the other end moves away from the conductive contact surface 21 of the conductive terminal 2, the handle 4 can move within a set range and is mounted on the insulating body 1, one end of the handle 4 extends outside the insulating body 1 to form a manual operation portion 41, the other end of the handle 4 is located in the wire connection cavity 11, the wire connection cavity 11 also has a cam locking mechanism, the cam locking mechanism comprises a locking cam 5 and a trigger unlocking arm 6, the locking cam 5 can rotate by a set angle and is arranged in the wire connection cavity 11, the cam surface of the locking cam 5 can abut against the side wall of the spring 3 to make it elastically deform when the locking cam 5 rotates, when the cam surface of the locking cam 5 rotates to the set angle, the elastic pressure of the spring 3 on the locking cam 5 is in the radial direction of the axis of the locking cam 5, so the locking cam 5 is in a self-locking position, one end of the trigger unlocking arm 6 is fixedly connected to the locking cam 5, the other end of the trigger unlocking arm 6 rotates synchronously with the cam, when the cam rotates to the self-locking position, the other end of the trigger unlocking arm 6 is just located on the wire insertion path of the wire 7 that is inserted into the wire connection cavity 11 from the wire inlet hole 12, the end of the wire 7 that is inserted into the wire connection cavity 11 from the wire inlet hole 12 can abut against the other end of the trigger unlocking arm 6 to make it drive the cam to rotate in the opposite direction and escape from the self-locking state, when the handle 4 moves on the insulating body 1, the other end of the handle 4 can drive the locking cam 5 to rotate in the forward direction to the set angle in one direction.

[0029] In the initial state, the other end of the elastic sheet 3 is close to the conductive contact surface 21 of the conductive terminal 2 under the action of its own elastic force, at this time, the other end of the elastic sheet 3 and the conductive contact surface 21 together form a wire conduction clamping structure, and the cam surface of the locking cam 5 is pressed by the elastic sheet 3, and the other end of the trigger unlocking arm 6 on the locking cam 5 just escapes from the wire insertion path of the wire 7 inserted into the wire cavity 11 through the wire insertion hole 12;

[0030] When the wire needs to be connected, the handle 4 drives the locking cam 5 to rotate first, the cam surface of the locking cam 5 drives the side wall of the elastic sheet 3 to deform, and then the other end of the elastic sheet 3 is displaced, when the locking cam 5 rotates to a set angle, the gap between the other end of the elastic sheet 3 and the conductive contact surface 21 of the conductive terminal 2 is greater than the diameter of the wire 7, at this time, the handle 4 can be reset to the original state to avoid the handle 4 being accidentally touched to collide with the locking cam 5 to cause the self-locking failure of the locking cam 5, at this time, the elastic sheet 3 is positioned by the locking cam 5 and cannot be reset, the wire 7 can be smoothly inserted into the wire cavity 11 through the wire insertion hole 12, when the wire 7 is inserted into the wire cavity 11 to a certain depth, the end of the wire 7 triggers the other end of the trigger unlocking arm 6 on the locking cam 5, the other end of the trigger unlocking arm 6 is reversed by the end of the wire 7, and then the locking cam 5 is synchronously reversed by a certain angle, the self-locking state of the locking cam 5 is broken, the cam surface of the locking cam 5 is pressed by the side wall of the elastic sheet 3 and automatically reverses to reset to the initial state, at this time, the other end of the elastic sheet 3 also gradually reaches the initial state, and the other end of the elastic sheet 3 and the conductive contact surface 21 again form a wire conduction clamping structure to tightly clamp the wire 7, and the wire 7 is electrically connected with the conductive terminal 2 to realize signal transmission;

[0031] When the wire needs to be disconnected, similarly, the handle 4 drives the locking cam 5 to rotate first to open the other end of the elastic sheet 3 and the conductive contact surface 21, and then the locking cam 5 is self-locked and positioned after rotating to a set angle, the other end of the elastic sheet 3 remains in the state of releasing the wire 7 and does not move, and the wire 7 can be pulled out;

[0032] The above terminal table wire connection structure is simple, can keep the other end of the elastic sheet 3 in the open state during wire connection and wire disconnection, can realize single-handed wire connection and wire disconnection operation, is convenient for wire connection and wire disconnection construction, and greatly improves the construction efficiency.

[0033] The trigger unlocking arm 6 is further provided with an avoidance gap structure opposite to the elastic sheet 3, and the other end of the elastic sheet 3 can extend into the wire insertion path of the wire 7 through the avoidance gap structure to form a wire conduction clamping structure with the conductive contact surface 21.

[0034] The trigger unlocking arm 6 is in L-shaped structure, one section of which is fixedly connected with the cam surface of one end of the locking cam 5 to form an integral structure, and the other section of which can extend into the wire 7 inlet path to form the trigger part 61 of the self-locking unlocking of the locking cam 5, and the space surrounded between the two sections of the trigger unlocking arm 6 forms the avoiding gap structure opposite to the elastic sheet 3. In addition, the trigger unlocking arm 6 can also be in U-shaped structure or other structures, as long as it can avoid the elastic sheet 3.

[0035] Two limiting stop structures are provided in the wire cavity 11 along the rotation direction of the locking cam 5, and the two side walls of the locking cam 5 are respectively stopped on the two limiting stop blocks to limit the rotation angle of the locking cam 5. When the locking cam 5 rotates to the set angle, the side wall thereof is in contact with one limiting stop block and cannot continue to move forward. When the locking cam 5 rotates to the other side wall thereof is in contact with the other limiting stop block and cannot continue to rotate reversely, the other end of the trigger unlocking arm 6 is completely separated from the wire 7 inlet path.

[0036] The two limiting stop blocks and the two side walls of the locking cam 5 are matched to block, so as to limit the rotation angle of the locking cam 5, prevent the locking cam 5 from rotating too large to cause the opening control failure of the elastic sheet 3. In addition to the limiting stop block blocking the two side walls of the locking cam 5 to limit the rotation angle of the locking cam 5, other ways can also be used to limit the rotation angle of the locking cam 5, such as an arc-shaped slide is formed on the side wall of the locking cam 5, or an arc-shaped slide is formed on the side wall of the wire cavity 11, and a convex column is arranged on the side wall of the wire cavity 11 or on the side wall of the locking cam 5, so as to limit the rotation angle of the locking cam 5 by the convex column sliding in the arc-shaped slide. This is an equivalent replacement structure easily thought by those skilled in the art according to the present application, and belongs to the protection range of the present application.

[0037] The other side wall of the locking cam 5 is provided with a limiting protrusion 51 and an arc-shaped limiting slot 52, and the limiting stop structure on the inner side wall of the wiring cavity 11 on one side of the locking cam 5 includes a limiting slot 13 and an arc-shaped limiting protrusion 14. The limiting protrusion 51 on the other side wall of the locking cam 5 can be inserted into the limiting slot 13 on the inner side wall of the wiring cavity 11, and the arc-shaped limiting protrusion 14 on the inner side wall of the wiring cavity 11 can be inserted into the arc-shaped limiting slot 52 on the other side wall of the locking cam 5 to limit the reverse rotation angle of the locking cam 5. During the rotation of the locking cam 5, when the side wall of the elastic sheet 3 is released, the limiting protrusion 51 on the other side wall of the locking cam 5 is just accommodated in the limiting slot 13 on the inner side wall of the wiring cavity 11 of the insulating body 1, and at the same time, the arc-shaped limiting protrusion 14 on the inner side wall of the wiring cavity 11 of the insulating body 1 is just inserted into the arc-shaped limiting slot 52 on the other side wall of the locking cam 5, thereby limiting the rotation angle of the locking cam 5 and preventing the locking cam 5 from shaking.

[0038] The handle 4 is rotatably arranged on the insulating body 1 at a set angle, and the axial protruding actuating part 53 is arranged on one end surface of the locking cam 5. The side wall of the handle 4 is stopped on the front side wall of the actuating part 53 against reverse rotation, and the forward rotation of the handle 4 can push the actuating part 53 of the locking cam 5 to rotate forward synchronously. The rotation of the handle 4 can drive the actuating part 53 on the locking cam 5 to rotate synchronously, and the handle 4 can also slide linearly to drive the actuating part 53 on the locking cam 5 to rotate synchronously. This is an equivalent replacement structure that can be easily thought of by those skilled in the art according to the present application, and belongs to the protection scope of the present application.

[0039] The locking cam 5 is provided with a convex shaft structure 54 on one end surface in the axial direction, and is provided with a shaft slot structure on the other end surface in the axial direction. The other end of the handle 4 is provided with a shaft hole 42. The convex shaft structure 54 on one end surface of the locking cam 5 can be inserted into the shaft hole 42 of the other end of the handle 4, and the length of the convex shaft structure 54 on the locking cam 5 is less than the length of the shaft hole 42 of the other end of the handle 4. The wiring cavity 11 of the insulating body 1 is provided with a positioning convex shaft on each of the two opposite side walls. The positioning convex shafts are respectively inserted into the shaft slot structure on the other end surface of the locking cam 5 and the shaft hole 42 of the other end of the handle 4 to realize the coaxial connection of the locking cam 5 and the handle 4 that can rotate relative to each other. The above structure realizes the coaxial hinged connection of the handle 4 and the locking cam 5, and simultaneously realizes the hinged connection of the handle 4 and the locking cam 5 with the inner side wall of the wiring cavity 11 of the insulating body 1, which is simple in structure and small in space occupation.

[0040] The two opposite side walls of the inside of the wiring cavity 11 of the insulating body 1 are respectively provided with a concave arc-shaped slide 15 and a convex arc-shaped slide concentric with the rotating shaft of the handle 4. The two opposite side walls of the handle 4 are respectively provided with a guide protrusion 43 and a guide groove 44. The guide protrusion 43 is slidably inserted into the concave arc-shaped slide 15, and the guide groove 44 is slidably sleeved outside the convex arc-shaped slide. During the rotation of the handle 4, the guide protrusion 43 slides in the concave arc-shaped slide 15 to achieve guidance, and at the same time, the guide groove 44 slides along the convex arc-shaped slide to also achieve guidance, thereby ensuring the stable rotation of the handle 4.

[0041] One end side wall of the concave arc-shaped slide 15 is formed with an interference protrusion 151, which can provide friction resistance for the guide protrusion 43 to rotate forward and away from the reverse rotation limit position. When the product is in the waiting wiring state, the handle 4 can be reset. After the handle 4 is reset, the guide protrusion 43 on the handle 4 reaches one end of the concave arc-shaped slide 15, which is blocked by the interference protrusion 151 on the one end side wall of the concave arc-shaped slide 15. Without external force, it cannot slide towards the other end of the concave arc-shaped slide 15, which can avoid accidental contact and cause the "waiting wiring" technology to fail.

[0042] The side wall of the elastic sheet 3 is formed with an arc-shaped bending part 31 by bending. The convex arc surface of the arc-shaped bending part 31 faces the side of the locking cam 5. The cam surface of the locking cam 5 includes an arc-shaped guide surface 55 and a convex arc-shaped locking surface 56. The distance between one end of the arc-shaped guide surface 55 and the axis of the locking cam 5 is greater than the distance between the other end of the arc-shaped guide surface 55 and the axis of the locking cam 5. The convex arc-shaped locking surface 56 is located at one end of the arc-shaped guide surface 55.

[0043] By bending the side wall of the elastic sheet 3 to form the arc-shaped bending part 31, the arc-shaped bending part 31 itself has a certain elasticity, and the overall strength of the elastic sheet 3 is increased. When the locking cam 5 rotates, the other end of the arc-shaped guide surface 55 of the locking cam 5 first contacts the convex arc surface of the arc-shaped bending part 31. As the locking cam 5 continues to rotate, the arc-shaped guide surface 55 of the locking cam 5 gradually transitions to one end contacting the convex arc surface of the arc-shaped bending part 31. Finally, the convex arc-shaped locking surface 56 of the locking cam 5 contacts the convex arc surface of the arc-shaped bending part 31. The elastic sheet 3 is gradually deformed, causing the other end to swing away from the conductive contact surface 21 of the conductive terminal 2, thereby releasing the wire 7. At the same time, the arc-shaped bending part 31 does not plastically deform due to the pressing force of the locking cam 5 during the deformation of the elastic sheet 3. When the top end of the convex arc-shaped locking surface 56 of the locking cam 5 is in direct contact with the top end of the convex arc surface of the arc-shaped bending part 31, the contact point, the center of the convex arc-shaped locking surface 56, and the axis of the locking cam 5 are located on the same straight line. At this time, the locking cam 5 is self-locking. During the entire rotation of the locking cam 5, the convex arc surface contacts the convex arc surface, the contact friction is small, the locking cam 5 rotates smoothly, and it is not easy to be damaged.

Claims

1. A terminal block structure with a terminal connection function, comprising an insulating body (1), a conductive terminal (2), a spring piece (3) and a handle (4), a terminal connection cavity (11) is formed inside the insulating body, a wire inlet hole (12) is provided on the side wall of the insulating body and communicates with the terminal connection cavity, a conductive contact surface (21) of one end of the conductive terminal is fixedly inserted into the terminal connection cavity, one end of the spring piece is fixedly arranged in the terminal connection cavity, and the other end of the spring piece and the conductive contact surface of the conductive terminal jointly form a conductive clamping wire structure capable of clamping a wire inserted from the wire inlet hole, the spring piece can be elastically deformed to move the other end thereof towards a direction away from the conductive contact surface of the conductive terminal, the handle is mounted on the insulating body and can move within a set range, one end of the handle extends outside the insulating body to form a manual operation part (41), and the other end of the handle is located in the terminal connection cavity, characterized in that: The cam locking mechanism comprises a locking cam (5) and a trigger unlocking arm (6), the locking cam is rotatably arranged in the terminal cavity and is set at a certain angle, the cam surface of the locking cam is capable of abutting against the side wall of the spring sheet to cause elastic deformation of the spring sheet when the locking cam rotates, the locking cam is self-locked when the cam surface is positively rotated to the set angle due to the elastic pressure of the spring sheet in the radial direction of the locking cam axis, one end of the trigger unlocking arm is fixedly connected with the locking cam, the other end of the trigger unlocking arm is synchronously rotated with the cam, the other end of the trigger unlocking arm is just located on the wire (7) insertion path of the wire inserted into the terminal cavity from the wire insertion hole when the cam is rotated to the self-locked state, the end of the wire inserted into the terminal cavity from the wire insertion hole is capable of abutting against the other end of the trigger unlocking arm to drive the cam to reversely rotate and escape from the self-locked state, the other end of the handle is capable of driving the locking cam to positively rotate to the set angle in one direction when the handle moves on the insulating body, the other end of the trigger unlocking arm is further provided with an avoiding notch structure opposite to the spring sheet, the other end of the spring sheet is capable of extending into the wire insertion path through the avoiding notch structure to form a conduction clamping structure together with the conductive contact surface, the trigger unlocking arm is in L-shaped structure, one section of the trigger unlocking arm is fixedly connected with the cam surface of the axial one end of the locking cam to form an integrated structure, the other section of the trigger unlocking arm is capable of extending into the wire insertion path to form a trigger part (61) for unlocking and locking the locking cam, the space surrounded between the two sections of the trigger unlocking arm forms the avoiding notch structure opposite to the spring sheet.

2. The terminal block structure having a wiring function according to claim 1, characterized by: Two limiting stop structures are arranged in the terminal cavity along the rotation direction of the locking cam, the two side walls of the locking cam along the rotation direction are respectively stopped on the two limiting stop blocks to limit the rotation angle of the locking cam, the side wall of the locking cam is just in contact with one limiting stop block when the locking cam is positively rotated to the set angle and cannot continue to positively move, the other end of the trigger unlocking arm is completely separated from the wire insertion path when the other side wall of the locking cam is just in contact with the other limiting stop block and cannot continue to reversely rotate.

3. The terminal block structure having a wiring function according to claim 2, characterized in that: A limiting block (51) and an arc-shaped limiting groove (52) are arranged on the other side wall of the locking cam, the limiting stop structure of the side wall of the terminal cavity located on one side of the locking cam comprises a limiting slot (13) and an arc-shaped limiting protrusion (14), the limiting block on the other side wall of the locking cam is capable of being inserted into the limiting slot on the side wall of the terminal cavity, and the arc-shaped limiting protrusion on the side wall of the terminal cavity is capable of being inserted into the arc-shaped limiting groove on the other side wall of the locking cam to limit the reverse rotation angle of the locking cam.

4. The terminal block structure having a wiring function according to claim 1, characterized in that: The handle is rotatably arranged on the insulating body, an axial protruding knob (53) is arranged on the axial one end surface of the locking cam, the side wall of the handle is stopped on the front side wall of the knob reversely rotating, and the handle is capable of driving the knob to synchronously positively rotate when the handle is positively rotated.

5. The terminal block structure having a wiring function according to claim 4, characterized in that: The locking cam is provided with a convex shaft structure (54) on one end surface, and is provided with a shaft groove structure on the other end surface. The other end of the handle is provided with a shaft hole (42). The convex shaft structure on the one end surface of the locking cam can be inserted into the shaft hole of the other end of the handle. The length of the convex shaft structure on the locking cam is less than the length of the shaft hole of the other end of the handle. The two opposite side walls of the wiring cavity of the insulating body are respectively provided with positioning convex shafts. The positioning convex shafts are respectively inserted into the shaft groove structure on the other end surface of the locking cam and the shaft hole of the other end of the handle to realize coaxial connection of the locking cam and the handle.

6. The terminal block structure having a wiring function according to claim 4, characterized by: The two opposite side walls of the wiring cavity of the insulating body are respectively provided with a concave arc-shaped slide (15) and a convex arc-shaped slide concentric with the handle rotating shaft. The two opposite side walls of the handle are respectively provided with a guide protrusion (43) and a guide groove (44). The guide protrusion can be slidably inserted into the concave arc-shaped slide. The guide groove can be slidably sleeved outside the convex arc-shaped slide.

7. The terminal block structure having a wiring function according to claim 6, characterized in that: One end side wall of the concave arc-shaped slide is provided with an interference protrusion (151). The interference protrusion can provide friction resistance for the guide protrusion to move away from the limit position of forward rotation and reverse rotation.

8. The terminal block structure having a wiring function according to claim 1, characterized by: The side wall of the elastic sheet is provided with an arc-shaped bending part (31) formed by bending. The convex arc surface of the arc-shaped bending part faces the side of the locking cam. The cam surface of the locking cam includes an arc-shaped guide surface (55) and a convex arc-shaped locking surface (56). The distance between one end of the arc-shaped guide surface and the center of the locking cam is greater than the distance between the other end of the arc-shaped guide surface and the center of the locking cam. The convex arc-shaped locking surface is located at one end of the arc-shaped guide surface.

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