Wiring terminal

Abstract

The invention discloses a wiring terminal, which comprises a shell seat, a first swinging piece, a second swinging piece, an elastic bridging piece and a guide connecting piece, a clamping part is arranged on the second swing piece; the elastic bridging piece is provided with a first connecting part and a second connecting part; the first swinging piece, the elastic bridging piece and the second swinging piece are linked to enable the clamping part to be close to the guide connecting piece to form a pre-clamping state; in the pre-clamping state, the first swing piece continues to be overturned till the rotating axis of the first connecting part relative to the first swing piece, the rotating axis of the second connecting part relative to the second swing piece and the rotating axis of the first swing piece relative to the shell base are coplanar, and a critical state is formed. In the critical state, the first swing piece continues to be overturned until the first swing piece or the elastic bridging piece moves and is positioned, and a clamping state is formed. By adopting the scheme, the wiring terminal provided by the invention has the advantages that the cable is clamped by the clamping part through linkage overturning, and then the first swinging part is continuously overturned to enable the first connecting part to cross a critical state, so that the elastic bridging part is actively reset to keep the clamping part clamping the cable.

Description

Technical Field

[0001] The invention belongs to the field of cable connection, and in particular relates to a wiring terminal. Background Art

[0002] Terminal blocks are products used to quickly connect cables.

[0003] The existing terminal blocks can refer to the terminal blocks and terminal block assemblies disclosed in Chinese Patent No. CN202222052840.5. The elastic clamping member is driven to deform by flipping the control button so that the cable can be inserted. Then, the control button is flipped in the opposite direction to reset the elastic clamping member to clamp the cable and complete the wiring.

[0004] The shortcomings of the existing terminal blocks are: 1. Before the cable is inserted, the clamping member needs to be stretched out and in a state of maximum deformation, so that the clamping member may be out of control of the operating button and automatically reset, so that the cable is clamped by the clamping member that is out of control before it is inserted into place, and there may be a situation where the clamping is not in place; 2. When there is no need to clamp the cable, the clamping member is also in a deformed state, so that the reset force generated by the deformation is used to clamp the cable with a smaller width / thickness, resulting in the clamping member being in a deformed state for a long time, which may easily cause the clamping member to be unable to be completely reset to its original natural state, so that the clamping force becomes smaller and the clamping strength is insufficient. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a terminal block that can clamp the cable by the clamping part through linkage flipping, and then continue to flip the first pendulum so that the first connecting part passes the critical state and actively realizes the resetting of the elastic bridge part to maintain the clamping part clamping the cable.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A terminal block, characterized in that it comprises: a shell base; a first pendulum, the first pendulum being rotatably mounted on the shell base; a second pendulum, the second pendulum being rotatably mounted on the shell base, the second pendulum being provided with a clamping portion; an elastic bridging member, the elastic bridging member being provided with a first connecting portion hinged to the first pendulum and a second connecting portion hinged to the second pendulum; and a conductive member, the conductive member being provided on the shell base; the first pendulum or the elastic bridging member is driven to realize the linkage movement of the first pendulum, the elastic bridging member and the second pendulum, so that the clamping portion approaches the conductive member as the second pendulum flips over to clamp the cable to be connected between the clamping portion and the conductive member to form a pre-clamping state; in the pre-clamping state, the first pendulum A pendulum continues to flip and the distance between the first connection part and the second connection part is gradually increased through the deformation of the elastic bridge member, and a critical state is formed when the first connection part relative to the first pendulum, the second connection part relative to the second pendulum, and the first pendulum relative to the shell seat are coplanar; in the critical state, the first pendulum continues to flip and the distance between the first connection part and the second connection part is gradually reduced through the deformation of the elastic bridge member, and a clamping state is formed when the first pendulum or the elastic bridge member moves to position; in the clamping state, the elastic bridge member is in a deformed state, and the restoring force of the elastic bridge member drives the clamping part to flip toward the conductive member to clamp the cable.

[0008] The present invention is further configured as follows: the elastic bridging member is U-shaped, and the elastic bridging member includes a main part and a first connecting arm and a second connecting arm located at both ends of the main part, one end of the first connecting arm is connected to the main part, the first connecting part is arranged at the other end of the first connecting arm, one end of the second connecting arm is connected to the main part, and the second connecting part is arranged at the other end of the second connecting arm; from the pre-clamping state to the clamping state, the first connecting arm and / or the second connecting arm are in a state of bending deformation to open the U-shaped opening of the elastic bridging member.

[0009] The present invention is further configured as follows: it also includes an inner assembly; the inner assembly is located on the inner side of the U-shaped elastic bridging member and is against the main part; a first assembly cavity is provided on the first connecting part, and a first movable opening is provided on the side of the first assembly cavity facing the main part, and the inner assembly is provided with a first assembly part extending from the first movable opening into the first assembly cavity; and / or a second assembly cavity is provided on the second connecting part, and a second movable opening is provided on the side of the second assembly cavity facing the main part, and the inner assembly is provided with a second assembly part extending from the second movable opening into the second assembly cavity.

[0010] The present invention is further configured as follows: a positioning section arched toward the inner assembly is provided on the main part, and the inner assembly is provided with a positioning groove cooperating with the positioning section; when the first connecting arm and / or the second connecting arm are bent to open the U-shaped opening of the elastic bridging member, the positioning section is bent to increase the arching amplitude to push the inner assembly so that the first assembly part penetrates into the first assembly cavity and / or the second assembly part penetrates into the second assembly cavity.

[0011] The present invention is further configured as follows: it also includes an external assembly; the external assembly is located on the outside of the U-shaped elastic bridging member, and the external assembly is connected to the internal assembly; the external assembly is located on the side of the main part away from the internal assembly and a limiting plate is provided to limit the main part through the limiting plate and the internal assembly.

[0012] The present invention is further configured as follows: the outer assembly is provided with mounting side plates on both sides of the elastic bridging member; the mounting side plates are provided with mounting slots, and the inner assembly is provided with mounting card portions that fit into the mounting slots.

[0013] The present invention is further configured as follows: a third connecting arm is provided on the inner assembly, the third connecting arm connects the inner assembly and the first assembly part, and the third connecting arm is used to deform synchronously when the first connecting arm is bent and deformed; and / or a fourth connecting arm is provided on the inner assembly, the fourth connecting arm connects the inner assembly and the second assembly part, and the fourth connecting arm is used to deform synchronously when the second connecting arm is bent and deformed.

[0014] The present invention is further configured as follows: a first socket is provided on the first connecting arm, and a second socket is provided on the inner assembly component to be aligned with the first socket; the first socket and the second socket are used for inserting and flipping a rod-shaped tool to drive the first ornament to flip.

[0015] The present invention is further configured as follows: in the pre-clamping state, the spacing between the first connection part relative to the rotation axis of the first pendulum member and the rotation axis of the second connection part relative to the second pendulum member is s1, in the critical state, the spacing between the first connection part relative to the rotation axis of the first pendulum member and the rotation axis of the second connection part relative to the second pendulum member is s2, in the clamping state, the spacing between the first connection part relative to the rotation axis of the first pendulum member and the rotation axis of the second connection part relative to the second pendulum member is s3, wherein, 10*(s2-s3)≤s2-s1≤30*(s2-s3); and / or, the angle at which the first connection part flips from the pre-clamping state to the critical state with the rotation axis of the first pendulum member relative to the shell seat is α1, and the angle at which the first connection part flips from the critical state to the clamping state with the rotation axis of the first pendulum member relative to the shell seat is α2, wherein, 3*α2≤α1≤10*α2.

[0016] The present invention is further configured as follows: the spacing between the second connecting part relative to the rotation axis of the second pendulum member and the rotation axis of the second pendulum member relative to the shell seat is k1, and in the clamped state, the spacing between the first connecting part relative to the first pendulum member and the rotation axis of the second pendulum member relative to the shell seat is k2, wherein 3*k1≤k2≤5*k1; and / or, in the clamped state, the angle between the plane where the rotation axis of the second connecting part relative to the second pendulum member and the rotation axis of the second pendulum member relative to the shell seat are located and the angle between the plane where the rotation axis of the first connecting part relative to the first pendulum member and the rotation axis of the second pendulum member relative to the shell seat are located is β, wherein 50°≤β≤100°.

[0017] By adopting the above technical solution, no matter how large the thickness / diameter of the cable to be clamped is, as long as the cable can be extended between the clamping part and the conductive connector, the clamping part can be driven to flip to the pre-clamping state to ensure the clamping of the cable, and the elastic bridge member basically does not deform during this process, so there is no problem of the elastic bridge member clamping the cable in advance before the cable is extended into place, thereby ensuring the effective coordination of the cable and the terminal block. In addition, before the cable is clamped, the elastic bridge member will not be in a deformed state for a long time, resulting in the inability to completely reset, thereby ensuring the accurate and high-strength clamping of the cable when it needs to be clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is an assembly diagram of the first embodiment of the present invention;

[0020] Figure 2 It is an exploded view of the first embodiment of the present invention;

[0021] Figure 3 is a cross-sectional view of the first embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of a state where the cable is not clamped in the first embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the pre-clamping state in the first embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of a critical state in the first embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of a clamping state in the first embodiment of the present invention;

[0026] Figure 8 is a schematic diagram of the first ornament in the first embodiment of the present invention;

[0027] Fig. 9 is a schematic diagram of the second ornament in the first embodiment of the present invention;

[0028] Fig.10 is a schematic diagram of an elastic bridge member in Embodiment 1 of the present invention;

[0029] Fig.11 is a schematic diagram of an inner assembly in Embodiment 1 of the present invention;

[0030] Fig.12 is a schematic diagram of an external assembly in Embodiment 1 of the present invention;

[0031] Fig.13 is a schematic diagram of a mounting base in Embodiment 1 of the present invention;

[0032] Fig.14 for Figure 3 A partial enlarged view of .

[0033] Description of reference numerals:

[0034] 1. Shell seat;

[0035] 11. first protruding column; 12. mounting seat;

[0036] 121, third through hole; 122, positioning portion;

[0037] 2. The first ornament;

[0038] 21. First flip plate; 22. First rotating plate;

[0039] 211, first perforation; 212, fourth perforation;

[0040] 3. The second ornament;

[0041] 31. second flip plate; 32. clamping portion;

[0042] 311, second perforation; 312, fifth perforation;

[0043] 4. Elastic bridge;

[0044] 41. first connecting part; 42. second connecting part; 43. main part; 44. first connecting arm; 45. second connecting arm;

[0045] 411, first assembly cavity; 412, first movable opening; 421, second assembly cavity; 422, second movable opening; 431, positioning section; 441, first plug hole;

[0046] 5. Connectors;

[0047] 6. Internal assembly parts;

[0048] 61. first assembly part; 62. second assembly part; 63. positioning groove; 64. mounting clamp; 65. fourth connecting arm; 66. second plug hole;

[0049] 7. External assembly parts;

[0050] 71. Limiting plate; 72. Installing side plate; 73. Installing card slot;

[0051] 8. Cables. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the present invention, and thus to more clearly define the scope of the present invention, the present invention is described in detail with respect to some specific embodiments of the present invention. It should be noted that the following are only some specific implementation methods of the present invention, which are only part of the embodiments of the present invention, wherein the specific and direct description of the relevant structure is only for the convenience of understanding the present invention, and each specific feature does not naturally and directly limit the scope of implementation of the present invention. The conventional selection and replacement made by those skilled in the art under the guidance of the present invention should be regarded as within the scope of the present invention.

[0053] Embodiment 1:

[0054] like Figure 1-Figure 14 As shown, the present invention discloses a terminal block, comprising:

[0055] The housing 1 is one or more plastic parts formed by injection molding;

[0056] The first swing piece 2 is an integrated metal piece formed by punching and bending, and includes first flip plates 21 on left and right sides and a first rotating plate 22 for connecting the first flip plates 21 on the left and right sides. The thickness direction of the first flip plates 21 is along the left and right direction without bending deformation. A first through hole 211 is provided at the lower position of the first flip plate 21, and a first convex column 11 is integrally formed on the shell seat 1, so that the first swing seat can be rotated relative to the shell seat 1 through the cooperation of the first convex column 11 and the first through hole 211;

[0057] The second swing piece 3 is an integrated metal piece formed by punching and bending, and includes second flip plates 31 on the left and right sides and a clamping portion 32 for connecting the two second flip plates 31 on the left and right sides. The thickness direction of the second flip plates 31 is along the left and right directions without bending deformation. The mounting seat 12 is fixedly mounted on the shell seat 1 by means of a clamping connection. A second through hole 311 is provided at the lower position of the second flip plate 31, and a third through hole 121 is provided on the mounting seat 12 accordingly, so that the second through hole 311 and the third through hole 121 are provided by means of a hinged rod to realize the rotational mounting of the second swing seat relative to the shell seat 1;

[0058] The elastic bridge member 4 is provided with a first connection part 41 hinged to the first swing member 2 and a second connection part 42 hinged to the second swing member 3. Specifically, the first flip plate 21 is provided with a fourth through hole 212 at an upper position, and a hinge rod is provided so that the first connection part 41 is installed on the hinge rod for hinge connection. Similarly, the second flip plate 31 is provided with a fifth through hole 312 at an upper position, and a hinge rod is provided so that the second connection part 42 is installed on the hinge rod for hinge connection; and,

[0059] The conductive connection member 5 is fixedly disposed in the housing seat 1 by a clamping method, and the clamping portion 32 is moved closer to or away from the conductive connection member 5 by flipping.

[0060] When the cable 8 needs to be clamped, the first swing member 2, the elastic bridge member 4 and the second swing member 3 move in conjunction, so that the clamping portion 32 is turned over with the second swing member 3 and approaches the connecting member 5, so as to clamp the cable 8 to be connected between the clamping portion 32 and the connecting member 5 to form a pre-clamping state, that is, Figure 4 Transformed into Figure 5 In the state shown, it should be noted that the elastic bridge member 4 does not deform or only slightly deforms during this process, so as to ensure that the elastic bridge member 4 can achieve the clamping of the cable 8 by the clamping portion 32 before the deformation;

[0061] In the pre-clamping state, the first pendulum 2 continues to flip and the distance between the first connection part 41 and the second connection part 42 is gradually increased through the deformation of the elastic bridge 4, and a critical state is formed when the rotation axis of the first connection part 41 relative to the first pendulum 2, the rotation axis of the second connection part 42 relative to the second pendulum 3, and the rotation axis of the first pendulum 2 relative to the housing 1 are coplanar. Figure 5 Transformed into Figure 6 It should be noted that in this process, the first connecting portion 41 and the second connecting portion 42 gradually increase the distance between them, so that the elastic deformation amplitude and the elastic potential energy gradually increase, so that the elastic reset force of the elastic bridge member 4 drives the first pendulum member 2 to reset to the pre-clamping state. In addition, Figure 6 In the state shown, the first connecting portion 41 is located at the maximum position that the distance between the first connecting portion 41 and the second connecting portion 42 can reach. At this time, the elastic potential energy of the elastic bridge member 4 reaches the maximum value, and the elastic reset member can maintain balance at this position. However, the balance state is easily destroyed by a slight deflection of the elastic bridge member 4.

[0062] In the critical state, the first pendulum 2 continues to flip and the distance between the first connection part 41 and the second connection part 42 is gradually reduced through the deformation of the elastic bridge 4, and a clamping state is formed when the first pendulum 2 or the elastic bridge 4 moves to a position, that is, Figure 6 Transformed into Figure 7 In the state shown, it should be noted that in this process, the first connecting portion 41 has already transitioned through the critical state, so that the movement direction of the first pendulum member 2 is the same as the reset direction of the elastic bridge member 4, so that even if the external force is removed, the elastic bridge member 4 will drive the first pendulum member 2 to flip and move to the positioning position to form a clamping state;

[0063] In the clamping state, the elastic bridge member 4 is in a deformed state, and the restoring force of the elastic bridge member 4 drives the clamping portion 32 to flip toward the conductive member 5 to clamp the cable 8 .

[0064] Therefore, no matter how large the thickness / diameter of the cable 8 to be clamped is, as long as the cable 8 can extend between the clamping portion 32 and the conductive member 5, the clamping portion 32 can be driven to flip to the pre-clamping state to ensure the clamping of the cable 8, and the elastic bridge member 4 basically does not deform during this process, so there is no problem of the elastic bridge member 4 clamping the cable 8 in advance before the cable 8 is extended into place, thereby ensuring the effective coordination of the cable 8 and the terminal block. In addition, before the cable 8 is clamped, the elastic bridge member 4 will not be in a deformed state for a long time, resulting in an inability to fully reset, thereby ensuring that the cable 8 is clamped accurately and with high strength when it needs to be clamped.

[0065] Specifically, a positioning portion 122 is provided on the upper front side of the mounting seat 12 in this embodiment, and the first ornament 2 is flipped forward and abuts against the positioning portion 122 to achieve a clamping state.

[0066] Among them, the elastic bridging member 4 is an integral metal part formed by punching and bending, and is U-shaped, and the width direction is deformable along the left and right direction. Specifically, the elastic bridging member 4 includes a main part 43 and a first connecting arm 44 and a second connecting arm 45 located at both ends of the main part 43, one end of the first connecting arm 44 is connected to the main part 43, the first connecting part 41 is arranged at the other end of the first connecting arm 44, one end of the second connecting arm 45 is connected to the main part 43, and the second connecting part 42 is arranged at the other end of the second connecting arm 45; wherein, from the pre-clamping state to the clamping state, the second connecting arm 45 is in a state of bending deformation to open the U-shaped opening of the elastic bridging member 4.

[0067] Therefore, the elastic bridging member 4 is connected to the first pendulum member 2 and the second pendulum member 3 through the first connecting arm 44 and the second connecting arm 45 on the main part 43, and the second connecting arm 45 bends and deforms when the first connecting part 41 and the second connecting part 42 move away from each other, and accumulates elastic potential energy, which is used to reset the second connecting arm 45 and reduce the U-shaped opening of the elastic bridging member 4.

[0068] Preferably, the length direction of the first connecting arm 44 and the second connecting arm 45 is close to 90° relative to the length direction of the main part 43. Compared with the case where the length direction of the first connecting arm 44 and the second connecting arm 45 is much greater than 90° relative to the length direction of the main part 43, the first connecting arm 44 and / or the second connecting arm 45 generates sufficient bending moment for reset and provides sufficient deformation space for deformation when the first connecting part 41 and the second connecting part 42 are separated. Compared with the case where the length direction of the first connecting arm 44 and the second connecting arm 45 is much less than 90° relative to the length direction of the main part 43, during the separation process of the first connecting part 41 and the second connecting part 42, the main part 43 will only approach the U-shaped opening of the elastic bridge 4 to make the elastic bridge 4 flat, and will not unfold from a smaller state to a larger state, which may easily cause interference with other structures in space.

[0069] In other embodiments, the second connecting arm 45 may be bent and deformed, or the first connecting arm 44 and the second connecting arm 45 may be bent and deformed in combination to achieve the expansion of the U-shaped opening of the elastic bridge member 4 .

[0070] In addition, it also includes an inner assembly 6; the inner assembly 6 is located on the inner side of the U-shaped elastic bridge 4 and is against the main part 43; wherein the first connecting part 41 is formed by a U-shaped bend at the end of the first connecting arm 44 to form a first assembly cavity 411, and the first assembly cavity 411 is formed with a first movable opening 412 on the side facing the main part 43, and correspondingly, the inner assembly 6 is provided with a first assembly part 61 extending from the first movable opening 412 into the first assembly cavity 411, so that the hinge rod for hingedly connecting the first connecting part 41 and the first pendulum 2 is arranged in the first assembly cavity 411 and passes through the first assembly cavity 411 The inner wall of the second connecting part 42 and the clamping of the first assembling part 61 are used to maintain stability; similarly, the second connecting part 42 is formed with a second assembling cavity 421 by making a U-shape bend at the end of the second connecting arm 45, and the second assembling cavity 421 is formed with a second movable opening 422 on the side facing the main part 43. Correspondingly, the inner assembly part 6 is provided with a second assembling part 62 extending from the second movable opening 422 into the second assembling cavity 421, so that the hinge rod for hingedly connecting the second connecting part 42 and the second pendulum 3 is passed through the second assembling cavity 421 and is clamped by the inner wall of the second assembling cavity 421 and the clamping of the second assembling part 62 to maintain stability.

[0071] Therefore, 1. elastic clamping of the hinged rod is achieved through the cooperation between the first connecting part 41 and the first assembling part 61, and between the second connecting part 42 and the second assembling part 62. When an elastic bridge member 4 with an elastic coefficient that is too large is selected and the first connecting part 41 and the second connecting part 42 are excessively separated, the hinged rod can be forcibly disengaged from the first assembling cavity 411 or the second assembling cavity 421 to prevent the elastic bridge member 4 from continuing to be opened to accumulate elastic potential energy and cause danger. 2. The first connecting part 41 and the second connecting part 42 are formed into a U-shaped structure by stamping, and the overall structure is simpler and the processing is more convenient.

[0072] In other embodiments, the above-mentioned arrangement is only performed at the first connecting portion 41 or the second connecting portion 42, and the other end adopts traditional metal bending to form a closed or nearly closed annular cavity for the hinged rod to pass through, so that the hinged rod has a high-strength anti-slip restriction in the annular cavity. Since one end has the coordination of the assembly cavity and the assembly portion, the first connecting portion 41 and the first assembling portion 61 can be disengaged, or the second connecting portion 42 and the second assembling portion 62 can be disengaged to play a protective role when the elastic bridge 4 is stretched open and the elastic potential energy reaches a critical state.

[0073] Preferably, in this embodiment, a positioning section 431 arched toward the inner assembly 6 is provided on the main part 43, and the inner assembly 6 is provided with a positioning groove 63 that cooperates with the positioning section 431; when the first connecting arm 44 and / or the second connecting arm 45 are bent to open the U-shaped opening of the elastic bridge 4, the warped first connecting arm 44 and / or the second connecting arm 45 will drive the end of the main part 43 to warp away from the inner assembly 6, so that the positioning section 431 located in the middle of the main part 43 will bend toward the inner assembly 6 and increase the arching amplitude to push the inner assembly 6 so that the first assembly The assembly part 61 penetrates into the first assembly cavity 411 and / or the second assembly part 62 penetrates into the second assembly cavity 421, so that the first assembly part 61 and the second assembly part 62 are more tightly clamped toward the hinge rod to ensure the stability of the hinge; in addition, when the bending moment inside the first connecting arm 44 and the second connecting arm 45 is too large and the first connecting part 41 and the second connecting part 42 cannot bear the bending moment, the first connecting part 41 and the second connecting part 42 bend and deform to increase the first movable opening 412 and the second movable opening 422, causing the first assembly part 61 and the second assembly part 62 to fall out.

[0074] In addition, it also includes an external assembly part 7; the external assembly part 7 is located on the outside of the U-shaped elastic bridge part 4, and the external assembly part 7 and the internal assembly part 6 are fixedly connected; the external assembly part 7 is located on the side of the main part 43 away from the internal assembly part 6, and a limiting plate 71 is provided to limit the main part 43 through the limiting plate 71 and the internal assembly part 6, so that the external assembly part 7 and the internal assembly part 6 clamp and limit the main part 43 on both the inside and outside sides to improve the stability of the installation of the elastic bridge part 4, and prevent the elastic bridge part 4 from becoming unstable and flying out to cause danger.

[0075] Preferably, the outer assembly 7 in the present embodiment is provided with mounting side plates 72 on both sides of the width of the elastic bridge member 4; the mounting side plates 72 are provided with mounting slots 73, and the inner assembly 6 is provided with mounting clips 64 that cooperate with the mounting slots 73, so that the mounting side plates 72 not only limit the width sides of the elastic bridge member 4 to further improve the stability, but are also used to fix the inner assembly 6 through the cooperation of the mounting clips 64 and the mounting slots 73, and the structure is simpler and more compact.

[0076] In this embodiment, a fourth connecting arm 65 is provided on the inner assembly 6, and the fourth connecting arm 65 connects the inner assembly 6 and the second assembly part 62, and the fourth connecting arm 65 is L-shaped so that when the second connecting arm 45 is bent and deformed, the fourth connecting arm 65 can also be deformed synchronously.

[0077] In this method, the fourth connecting arm 65 is deformed synchronously with the deformation of the second connecting arm 45, so that the second assembly part 62 is always located in the second assembly cavity 421, and the first assembly part 61 is directly arranged on the inner assembly part 6 and has less elasticity, so that the first connecting arm 44 is basically not bent under the cooperation of the first assembly part 61 and the first assembly cavity 411.

[0078] In other embodiments, when the fourth connecting arm 65 is provided or the second assembly part 62 is directly provided on the inner assembly part 6, a third connecting arm is provided on the inner assembly part 6, the third connecting arm connects the inner assembly part 6 and the first assembly part 61, and the third connecting arm is L-shaped so that when the first connecting arm 44 is bent and deformed, the third connecting arm can also be deformed synchronously.

[0079] In addition, in the present embodiment, a first socket 441 is provided on the first connecting arm 44, and a second socket 66 which is aligned with the first socket 441 is provided on the inner assembly 6; the first socket 441 and the second socket 66 are used for inserting and flipping rod-shaped tools such as screwdrivers to drive the first pendulum 2 to flip, so that it is necessary to increase the force arm with the help of rod-shaped tools to flip, so that an elastic bridge member 4 with a larger elastic coefficient can be used to provide a larger elastic force in the clamping state to ensure the stability of the clamping, and it is not easy to be opened manually. In addition, since the first assembly part 61 is directly connected to the inner assembly 6 and has less elasticity, the first assembly part 61 is fitted under the first assembly cavity 411, and since the first connecting arm 44 is not easy to deform, the first socket 441 and the second socket 66 are accurately aligned in any state of the elastic bridge member 4, which is convenient for inserting or removing the rod-shaped tool.

[0080] Preferably, in the pre-clamping state, the distance between the first connecting part 41 and the rotation axis of the first pendulum member 2 and the distance between the second connecting part 42 and the rotation axis of the second pendulum member 3 is s1, in the critical state, the distance between the first connecting part 41 and the rotation axis of the first pendulum member 2 and the distance between the second connecting part 42 and the rotation axis of the second pendulum member 3 is s2, and in the clamping state, the distance between the first connecting part 41 and the rotation axis of the first pendulum member 2 and the distance between the second connecting part 42 and the rotation axis of the second pendulum member 3 is s3, wherein 10*(s2-s3)≤s2-s1≤30*(s2-s3).

[0081] Therefore, for the wiring of cables 8 of different thicknesses, the change in the distance between the first connection part 41 and the second connection part 42 caused by the elastic bridge 4 from the pre-clamping state to the critical state is much greater than the change in the distance between the first connection part 41 and the second connection part 42 caused by the elastic bridge 4 from the critical state to the clamping state, so as to ensure that the elastic bridge 4 has high-intensity elastic potential energy in the clamping state to drive the second pendulum 3 to clamp the cable 8. Under the above-mentioned setting, even if the elastic bridge 4 undergoes a certain irreversible deformation due to long-term use, it can also be ensured that in the clamping state, the elastic bridge 4 can undergo a larger deformation to ensure the elastic potential energy.

[0082] Similarly, the angle at which the first connecting portion 41 flips from the pre-clamping state to the critical state with the rotation axis of the first pendulum 2 relative to the shell seat 1 is α1, and the angle at which the first connecting portion 41 flips from the critical state to the clamping state with the rotation axis of the first pendulum 2 relative to the shell seat 1 is α2, wherein 3*α2≤α1≤10*α2.

[0083] Therefore, for the wiring of cables 8 of different thicknesses, the change in the flipping angle caused by the first connecting part 41 from the pre-clamping state to the critical state is much greater than the change in the flipping angle caused by the first connecting part 41 from the critical state to the clamping state, so as to ensure that the elastic bridge 4 has high-intensity elastic potential energy in the clamping state to drive the second pendulum 3 to clamp the cable 8. Under the above-mentioned setting, even if the elastic bridge 4 undergoes certain irreversible deformation due to long-term use, it can also be ensured that in the clamping state, the elastic bridge 4 can undergo a larger deformation to ensure the elastic potential energy.

[0084] Preferably, the spacing between the second connecting portion 42 and the rotation axis of the second pendulum member 3 and the rotation axis of the second pendulum member 3 and the shell seat 1 is k1, and in the clamped state, the spacing between the first connecting portion 41 and the rotation axis of the first pendulum member 2 and the rotation axis of the second pendulum member 3 and the shell seat 1 is k2, wherein 3*k1≤k2≤5*k1.

[0085] Therefore, by reducing the length of k1 and increasing the length of k2, the length of the first connection part 41 and the second connection part 42 in the clamping state is made closer to the constant k2, so that when clamping cables 8 of different widths / thicknesses, although the second connection part 42 is angularly deflected, the lengths of the first connection part 41 and the second connection part 42 in the clamping state are closer, so that the clamping force generated is closer, that is, when changing to clamp cables 8 of different widths / thicknesses, the elastic bridging member 4 will not have a large difference in deformation amplitude in the two clampings, and will not be unable to clamp the cable 8 of a smaller width / thickness due to a certain irreversible deformation after clamping the cable 8 of a larger width / thickness.

[0086] Preferably, in the clamping state, the angle between the plane where the rotation axis of the second connecting part 42 relative to the second pendulum member 3 and the rotation axis of the second pendulum member 3 relative to the shell seat 1 are located and the plane where the rotation axis of the first connecting part 41 relative to the first pendulum member 2 and the rotation axis of the second pendulum member 3 relative to the shell seat 1 are located is β, wherein 50°≤β≤100°, so that when clamping a cable 8 with a larger width / thickness, β is greater than 90°, and when clamping a cable 8 with a smaller width / thickness, β is less than 90°, and is arranged within an interval close to 90°, so that in the clamping state, the difference between the spacing between the first connecting part 41 and the second connecting part 42 when clamping a cable 8 with the maximum width / thickness and the spacing between the first connecting part 41 and the second connecting part 42 when clamping a cable 8 with the minimum width / thickness is smaller.

[0087] Embodiment 2:

[0088] A wiring terminal, whose main structure is the same as that of the first embodiment, except that the first jack 441 and the second jack 66 are not provided, and a driving structure such as a handle is provided on the first pendulum 2, so that the second pendulum 3 and the elastic bridge 4 can be linked by driving the first pendulum 2 to move.

[0089] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A terminal block, characterized in that: include: Shell seat (1); A first swing member (2), the first swing member (2) being rotatably mounted on the housing seat (1); a second rocker member (3), the second rocker member (3) being rotatably mounted on the housing seat (1), and a clamping portion (32) being provided on the second rocker member (3); an elastic bridge member (4), the elastic bridge member (4) being provided with a first connection portion (41) hingedly connected to the first pendulum member (2) and a second connection portion (42) hingedly connected to the second pendulum member (3); and, A connecting member (5), wherein the connecting member (5) is arranged on the housing seat (1); The first swing member (2) or the elastic bridge member (4) is driven to realize the linkage movement of the first swing member (2), the elastic bridge member (4) and the second swing member (3), so that the clamping portion (32) is turned over with the second swing member (3) and approaches the conductive member (5) so as to clamp the cable (8) to be connected between the clamping portion (32) and the conductive member (5) to form a pre-clamping state; In the pre-clamping state, the first pendulum member (2) continues to turn over and the distance between the first connecting portion (41) and the second connecting portion (42) gradually increases through the deformation of the elastic bridge member (4), and a critical state is formed when the first connecting portion (41) is coplanar with the rotation axis of the first pendulum member (2), the second connecting portion (42) is coplanar with the rotation axis of the second pendulum member (3), and the first pendulum member (2) is coplanar with the rotation axis of the housing seat (1); In a critical state, the first rocking member (2) continues to flip over, and the distance between the first connecting portion (41) and the second connecting portion (42) is gradually reduced through the deformation of the elastic bridge member (4), and a clamping state is formed when the first rocking member (2) or the elastic bridge member (4) moves to a certain position; In the clamping state, the elastic bridge member (4) is in a deformed state, and the restoring force of the elastic bridge member (4) drives the clamping portion (32) to flip toward the guiding member (5) to clamp the cable (8).

2. The terminal block according to claim 1, characterized in that: The elastic bridge member (4) is U-shaped, and comprises a main portion (43) and a first connecting arm (44) and a second connecting arm (45) located at two ends of the main portion (43); one end of the first connecting arm (44) is connected to the main portion (43); the first connecting portion (41) is arranged at the other end of the first connecting arm (44); one end of the second connecting arm (45) is connected to the main portion (43); and the second connecting portion (42) is arranged at the other end of the second connecting arm (45); From the pre-clamping state to the clamping state, the first connecting arm (44) and / or the second connecting arm (45) are in a bent and deformed state to open the U-shaped opening of the elastic bridge member (4).

3. The terminal block according to claim 2, characterized in that: Also included is an inner assembly (6); The inner assembly component (6) is located inside the U-shaped elastic bridge component (4) and abuts against the main portion (43); The first connecting portion (41) is provided with a first assembly cavity (411), and a first movable opening (412) is provided on a side of the first assembly cavity (411) facing the main portion (43), and the inner assembly component (6) is provided with a first assembly portion (61) extending from the first movable opening (412) into the first assembly cavity (411); and / or, The second connecting portion (42) is provided with a second assembly cavity (421), and a second movable opening (422) is provided on a side of the second assembly cavity (421) facing the main portion (43), and the inner assembly component (6) is provided with a second assembly portion (62) extending from the second movable opening (422) into the second assembly cavity (421).

4. The connection terminal according to claim 3, characterized in that: The main part (43) is provided with a positioning section (431) which is arched toward the inner assembly part (6), and the inner assembly part (6) is provided with a positioning groove (63) which cooperates with the positioning section (431); when the first connecting arm (44) and / or the second connecting arm (45) are bent to open the U-shaped opening of the elastic bridge part (4), the positioning section (431) is bent to increase the amplitude of the arch to push the inner assembly part (6) so that the first assembly part (61) penetrates into the first assembly cavity (411) and / or the second assembly part (62) penetrates into the second assembly cavity (421).

5. The connection terminal according to claim 3, characterized in that: Also included is an outer assembly (7); The outer assembly (7) is located outside the U-shaped elastic bridge (4), and the outer assembly (7) is connected to the inner assembly (6); The outer assembly (7) is provided with a limiting plate (71) on a side of the main part (43) away from the inner assembly (6), so as to limit the main part (43) through the limiting plate (71) and the inner assembly (6).

6. The connection terminal according to claim 5, characterized in that: The outer assembly component (7) is provided with mounting side plates (72) on both sides of the width of the elastic bridge component (4); The mounting side plate (72) is provided with a mounting slot (73), and the inner assembly (6) is provided with a mounting clip portion (64) that fits into the mounting slot (73).

7. The connection terminal according to claim 3, characterized in that: The inner assembly (6) is provided with a third connecting arm, the third connecting arm connects the inner assembly (6) and the first assembly part (61), and the third connecting arm is used to deform synchronously when the first connecting arm (44) is bent and deformed; and / or, The inner assembly (6) is provided with a fourth connecting arm (65), the fourth connecting arm (65) connecting the inner assembly (6) and the second assembly part (62), and the fourth connecting arm (65) is used to deform synchronously when the second connecting arm (45) is bent and deformed.

8. The connection terminal according to claim 7, characterized in that: The first connecting arm (44) is provided with a first plug hole (441), and the inner assembly (6) is provided with a second plug hole (66) aligned with the first plug hole (441); The first insertion hole (441) and the second insertion hole (66) are used for inserting and flipping a rod-shaped tool to drive the first pendulum (2) to flip.

9. The connection terminal according to claim 1, characterized in that: In the pre-clamping state, the distance between the first connecting part (41) and the rotation axis of the first pendulum (2) and the distance between the second connecting part (42) and the rotation axis of the second pendulum (3) is s1; in the critical state, the distance between the first connecting part (41) and the rotation axis of the first pendulum (2) and the rotation axis of the second connecting part (42) and the second pendulum (3) is s2; in the clamping state, the distance between the first connecting part (41) and the rotation axis of the first pendulum (2) and the rotation axis of the second connecting part (42) and the second pendulum (3) is s3, wherein 10*(s2-s3)≤s2-s1≤30*(s2-s3); and / or, The angle at which the first connecting portion (41) flips from the pre-clamping state to the critical state with respect to the rotation axis of the first pendulum (2) relative to the shell seat (1) is α1, and the angle at which the first connecting portion (41) flips from the critical state to the clamping state with respect to the rotation axis of the first pendulum (2) relative to the shell seat (1) is α2, wherein 3*α2≤α1≤10*α2.

10. The connection terminal according to claim 1, characterized in that: The spacing between the second connecting portion (42) and the rotation axis of the second pendulum member (3) and the rotation axis of the second pendulum member (3) and the housing seat (1) is k1, and in the clamped state, the spacing between the first connecting portion (41) and the rotation axis of the first pendulum member (2) and the rotation axis of the second pendulum member (3) and the housing seat (1) is k2, wherein 3*k1≤k2≤5*k1; and / or, In the clamped state, an angle β is formed between a plane where the rotation axis of the second connecting portion (42) relative to the second pendulum member (3) and the rotation axis of the second pendulum member (3) relative to the shell seat (1) are located, and a plane where the rotation axis of the first connecting portion (41) relative to the first pendulum member (2) and the rotation axis of the second pendulum member (3) relative to the shell seat (1) are located, wherein 50°≤β≤100°.

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