Wire-locking terminal block of the coil spring type

Abstract

Wire-locking terminal block of the coil spring type, comprising several insulating seats (1) arranged in succession, each insulating seat (1) having an installation groove (11), a wire passage hole (12) for the passage of the wire (8) being provided on the side wall on one side of the installation groove (11), a terminal block (2) being installed on the bottom of the installation groove (11), one end of the terminal block (2) being arranged to penetrate the bottom of the installation groove (11), and a first through hole (23) for the passage of the wire (8) being provided on one side of the terminal block (2);and wherein a wire-locking frame (3) is slidably connected to the inside of the installation groove (11), and wherein a compressive elastic element is arranged in the wire-locking frame (3), and wherein one end of the compressive elastic element is installed on the inside of the top part of the wire-locking frame (3) and the other end is installed on the top part of the terminal block (2); and wherein a second through-hole (31) for passing the wire (8) is provided on a side wall of the wire-locking frame (3), and wherein the wire through-hole (12), the first through-hole (23) and the second through-hole (31) are each provided accordingly;and wherein the upper plate of the terminal (2) is arranged such that it penetrates the second through-hole (31), and wherein a drive component (5) for driving the wire-locking frame (3) to move towards the terminal (2) is installed on the upper part of the insulating seat (1), wherein a first connecting component (6) is arranged between two adjacent insulating seats (1), comprising several mushroom heads (61) installed on one side of an insulating seat (1), and wherein installation holes (16) for installing the mushroom heads (61) are provided in the insulating seat (1), and wherein several mushroom holes (62) are provided on one side of another insulating seat (1), and wherein the mushroom heads (61) are clamped in a one-to-one correspondence in the mushroom holes (62).

Description

TECHNICAL FIELD

[0001] The present invention relates to the technical field of terminal block, particularly to a coil spring type wire locking terminal block. STATE OF THE ART

[0002] At present, the terminal block is an electronic component used for circuit connection, and the terminal block is also called a terminal block, electrical connector, etc. The electrical connector includes a rectangular electrical connector and a circular electrical connector, and due to the simple structure, the rectangular electrical connector is more widely used on the circuit boards of electronic devices.

[0003] From the document JP H05 - 129 039 A, a wire-locking terminal block of the coil spring type is known, comprising a plurality of insulating seats arranged one after the other, wherein an installation groove is provided in each insulating seat, and wherein a wire through-hole for passing the wire is provided on the side wall on one side of the installation groove, and wherein a connection terminal is installed on the bottom of the installation groove, and wherein one end of the connection terminal penetrates a wall of the installation groove, and wherein a first through-hole for passing the wire is provided on one side of the connection terminal;and wherein a wire-locking frame is slidably connected inside the installation groove, and wherein a compressive elastic member is arranged in the wire-locking frame, and wherein one end of the compressive elastic member is installed on the inside of the upper part of the wire-locking frame and the other end is installed on the upper part of the terminal; and wherein a second through-hole for passing the wire is provided on a side wall of the wire-locking frame, and wherein the wire through-hole, the first through-hole, and the second through-hole are axially aligned with each other; and wherein a drive component for driving the wire-locking frame to move toward the terminal is installed in the upper part of the installation groove.

[0004] DE 10 2005 060 410 A1 proposes an electrical terminal comprising a compression spring that must be compressed to open and insert an electrical conductor. The electrical terminal has an eccentrically mounted actuating cam that can be pivoted using a tool to open the terminal.

[0005] DE 25 50 943 A1 discloses a screwless electrical terminal comprising a spring-loaded clamping slide. The terminal can be opened by means of a lever against the spring force.

[0006] Similar electrical connection terminals are described in the following prior art documents: DE 10 2019 111 159 A1, DE 10 2013 109 640 A1, DE 196 11 762 A1, US 6 341 989 B1, US 2012 / 0 064 780 A1 and DE 201 00 939 U1.

[0007] The prior art may refer to Chinese Utility Model Patent Publication No. CN 208209144 U, which discloses a terminal block with an integrated horn connector, comprising a PCB mounted on the lower case and a side cover mounted on both sides of the PCB; wherein a plurality of terminal block socket holes are provided on the PCB, into which the terminal block can be inserted, and wherein the terminal block forms an electrical connection with the PCB through the terminal block socket holes; and wherein a horn connector is arranged on the PCB, and wherein each connection end of the external power supply on the terminal block forms a one-to-one connection with each control signal input and output end on the horn connector through the engraved circuit on the PCB;By integrating a horn connector and a terminal block on the PCB board, it is realized that the input end adopts a horn connector and is quickly connected to the PLC input end or output end through a cable.

[0008] The prior art can refer to the application document of the Chinese invention patent with the publication number CN 112003095 A, which discloses a terminal block comprising an insulating seat, a screw, a resistance strain gauge, a first detection circuit, and a main control chip, wherein a plurality of interfaces wound with the metal frame are provided on a surface of the insulating seat, and wherein a first electrode and a second electrode are arranged at intervals on the inner surface of a side wall of the interface, and wherein one end of each wire is inserted into each interface and comes into contact with the first electrode and the second electrode, and wherein a plurality of resistance strain gauges are embedded in the insulating seat, and wherein each resistance strain gauge faces a side wall of each interface and is spaced apart from a side wall of the interface,and wherein one end of each screw passes through the insulating seat and is inserted into each interface from a different side wall of each interface, and wherein the screw can rotate so that the screw moves toward the wire and presses the wire tightly. Each resistance strain gauge is electrically connected to the first detection circuit, and the first detection circuit is electrically connected to the main control chip. The terminal block can detect the fastening state of the screw and the state of the wire to troubleshoot the faults.

[0009] However, the insulating seat can fix the wire through the screw, as is well known, the screw is easy to slip, and after the screw slips, it may be inconvenient to disassemble and assemble the wire. CONTENT OF THE PRESENT INVENTION

[0010] The present application provides a coil spring type wire locking terminal block to facilitate wire disassembly and assembly.

[0011] The invention is based on the object of providing a wire-locking terminal block of the coil spring type which facilitates the assembly and disassembly of the wire.

[0012] To solve this problem, a wire-locking terminal block having the features of claim 1 is provided.

[0013] The coil spring type wire locking terminal block according to the invention comprises: a plurality of insulating seats arranged one after the other, wherein an installation groove is provided in each insulating seat, and wherein a wire through-hole for passing the wire is provided on the side wall on one side of the installation groove, and wherein a connection terminal is installed on the bottom of the installation groove, and wherein one end of the connection terminal is arranged to penetrate the bottom of the installation groove, and wherein a first through-hole for passing the wire is provided on one side of the connection terminal;and wherein a wire-locking frame is slidably connected to the inside of the installation groove, and wherein a compressive elastic member is arranged in the wire-locking frame, and wherein one end of the compressive elastic member is installed on the inside of the upper part of the wire-locking frame and the other end is installed on the upper part of the terminal; and wherein a second through-hole for passing the wire is provided on a side wall of the wire-locking frame, and wherein the wire through-hole, the first through-hole, and the second through-hole are provided respectively;and wherein the top plate of the terminal is arranged to penetrate the second through-hole, and wherein a drive component for driving the wire-locking frame to move toward the terminal is installed on the top of the insulating seat, wherein a first connecting component is arranged between two adjacent insulating seats, the first connecting component comprising a plurality of mushroom heads installed on one side of one insulating seat, and wherein installation holes for installing the mushroom heads are provided in the insulating seat, and wherein a plurality of mushroom holes are provided on one side of another insulating seat, and wherein the mushroom heads are clamped in a one-to-one correspondence in the mushroom holes.;

[0014] Using the above technical solution, at the initial position, the wire locking frame is pushed to the highest position under the action of the tension force of the upward compressing elastic element, now the wire through hole is blocked and is in the closed state;When the wire is to be installed, the wire locking frame is pushed downward by the driving component. After the wire through-hole, the first through-hole, and the second through-hole are aligned by pushing the wire locking frame downward, the movement of the wire causes one end of the wire to penetrate through the wire through-hole, the first through-hole, and the second through-hole in succession. Then, the support for the wire locking frame is removed by the driving component. Now, the wire locking frame is restored upward under the action of the compressing elastic member. Now, the wire is clamped between the clamp and the wire locking frame under the action of the second through-hole of the wire locking frame, so that the wire can be installed;When the wire is to be removed, the wire locking frame is driven downward by the drive component until the wire through-hole, the first through-hole, and the second through-hole are aligned, and then the wire is removed. In summary, with the arrangement of the above structure, the disassembly and assembly of the wire are facilitated.

[0015] Preferably, a third through-hole is provided on the upper part of the installation groove, wherein the drive component comprises a rotary shaft rotatably connected to the side wall on one side of the third through-hole, and wherein the rotary shaft is located on a side of the wire-locking frame facing away from the connection terminal, and wherein a pressure plate is fixedly connected to the rotary shaft, and wherein one end of the pressure plate can abut against the upper part of the wire-locking frame.

[0016] Using the above technical solution, with the arrangement of the pressure plate, the wire locking frame can be driven to move downward.

[0017] Preferably, the pressure plate comprises a pressing part and a pushing part, wherein a side of the pressing part facing the wire-locking frame is arc-shaped, and wherein the pressing part is eccentrically connected to the rotary shaft.

[0018] Using the above technical solution, the wire locking frame is driven to move downwards, Preferably, a hole is provided at the bottom of the installation groove for passing through an end of the terminal remote from the wire-locking frame, one end of the hole being arranged to penetrate one side of the insulating seat.

[0019] Using the above technical solution, the terminal block can be conveniently installed.

[0020] Preferably, the second through-holes are provided in a number of 2, wherein the two second through-holes are provided respectively on the two sides of the wire-locking frame, and wherein two notches are provided respectively on the two sides of the upper part of the terminal, and wherein the two side walls of the two second through-holes are slidably connected to the four notches in a one-to-one correspondence.

[0021] Using the above technical solution, the wire locking frame can move more stably to facilitate the installation of the wire.

[0022] According to the invention, the first connecting component is arranged between two adjacent insulating seats, which first connecting component comprises a plurality of mushroom heads installed on one side of an insulating seat, and a plurality of mushroom holes are provided on one side of another insulating seat, and the mushroom heads are clamped in a one-to-one correspondence in the mushroom holes.

[0023] Using the above technical solution, with the arrangement of the mushroom heads and mushroom holes, two adjacent insulating seats can be conveniently connected to each other.

[0024] Preferably, the mushroom head comprises a root portion and a head portion, wherein the diameter of the head portion is larger than the diameter of the root portion, and wherein the head portion is elastic; and wherein the shape of the mushroom hole is the same as the shape of the mushroom head.

[0025] Using the above technical solution, the mushroom head can be clamped in the mushroom hole.

[0026] Preferably, a side cover is installed on one side of an insulating seat located at the row head, which side cover is detachably connected to one side of the insulating seat by a second connecting component, and the structure of the second connecting component is the same as that of the first connecting component.

[0027] Using the above technical solution, with the arrangement of the side cover, the installation groove can be locked on the insulating seat on the row head to reduce the possibility of electric shock to the operating personnel; with the arrangement of the second connection arrangement, the side cover can be conveniently installed.

[0028] In summary, the present application has the following advantages: 1. At the initial position, the wire locking frame is pushed to the highest position under the action of the tension force of the upward compressing elastic element, now the wire through hole is blocked and is in the closed state;When the wire is to be installed, the wire locking frame is pushed downward by the driving component. After the wire through-hole, the first through-hole, and the second through-hole are aligned by pushing the wire locking frame downward, the movement of the wire causes one end of the wire to penetrate through the wire through-hole, the first through-hole, and the second through-hole in succession. Then, the support for the wire locking frame is removed by the driving component. Now, the wire locking frame is restored upward under the action of the compressing elastic member. Now, the wire is clamped between the clamp and the wire locking frame under the action of the second through-hole of the wire locking frame, so that the wire can be installed;When the wire is to be removed, the wire locking frame is driven downward by the drive component until the wire through-hole, the first through-hole, and the second through-hole are aligned, and then the wire is removed. In summary, with the arrangement of the above structure, the disassembly and assembly of the wire are facilitated. 2. With the arrangement of the side cover, the installation groove can be locked on the insulating seat at the row head to reduce the possibility of electric shock to the operating personnel; with the arrangement of the second connection arrangement, the side cover can be conveniently installed. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a schematic overall structural view in an embodiment of the present application. Fig. 2 shows a schematic structural view in an embodiment of the present application, showing a wire locking frame and a spring. Fig. 3 shows a schematic structural view in an embodiment of the present application, showing a connection terminal. Fig. 4 shows a schematic structural view in an embodiment of the present application, showing a cutting section. Fig. 5 shows a partial sectional view in an embodiment of the present application, showing a cutting portion. Fig. 6 shows a schematic structural view in an embodiment of the present application, showing an arcuate groove and an inclined surface. DETAILED DESCRIPTION

[0029] The present invention discloses a coil spring type wire locking terminal block as shown in Fig. 1 and Fig. 2, comprising a plurality of insulating seats 1 arranged one after the other, wherein in each insulating seat 1 there is provided a longitudinally arranged installation groove 11 which is arranged so as to penetrate one side of the insulating seat 1, and wherein on the side wall on one side of the installation groove 11 there is provided a wire through-hole 12 for passing the wire 8, and wherein the wire through-hole 12 extends along the length direction of the insulating seat 1, see Fig. 3, a terminal 2 is installed on the bottom of the installation groove 11, which terminal comprises a connecting portion 21 fixedly connected to the bottom of the installation groove 11 and an inserting portion 22 fixedly connected to the bottom of the connecting portion 21, and wherein a hole 13 for passing the inserting portion 22 is provided on the bottom of the installation groove 11, and wherein one end of the hole 13 is arranged to penetrate one side of the insulating seat 1.

[0030] As in Fig. 2 and Fig. 3, a first through-hole 23 is provided on one side of the terminal 2 for passing the wire; a wire-locking frame 3 is connected to the inside of the installation groove 11 so as to be longitudinally displaceable, and the wire-locking frame 3 is U-shaped, and a compressive elastic element, which is a spring 4, is arranged in the wire-locking frame 3, and one end of the spring 4 is connected to the inside of the upper part of the wire-locking frame 3 and the other end is connected to the upper part of the connecting portion 21; a second through-hole 31 is provided on a side wall of the wire-locking frame 3 for passing the wire 8 through, and the wire through-hole 12, the first through-hole 23, and the second through-hole 31 are provided respectively; and the top plate of the connecting portion 21 is arranged so thatthat it penetrates the second through-hole 31, and wherein a drive component 5 for driving the wire-locking frame 3 to move toward the terminal 2 is installed on the upper part of the insulating seat 1. In order to reduce the possibility of the wire-locking frame 3 being moved under the action of an external force, a first abutting portion 32 and a second abutting portion 33 are arranged on both sides of the bottom of the wire-locking frame 3, wherein the first abutting portion 32 is arranged vertically, and a stop block 111 is firmly connected to the bottom of the installation groove 11, and wherein the first abutting portion 32 abuts a side of the stop block 11 facing the insertion portion 22, and wherein the second abutting portion 33 is V-shaped.and wherein the second abutting portion 33 can abut the inner wall of an end of the connecting portion 21 facing away from the insertion portion 22. In the initial position, the wire-locking frame 3 is pushed to the highest position under the action of the tensioning force of the upwardly directed spring 4; now, the wire through-hole 12 is blocked and is in the closed state. When the wire 8 is to be installed, the wire-locking frame 3 is pushed downward by the drive component 5. After the wire through-hole 12, the first through-hole 23, and the second through-hole 31 have been aligned by pushing the wire-locking frame 3 downward, one end of the wire 8 is forced to successively penetrate the wire through-hole 12, the first through-hole 23, and the second through-hole 31 by the movement of the wire 8.Then, the drive component 5 removes the support for the wire-locking frame 3. The wire-locking frame 3 is then returned upward under the action of the spring 4. The wire 8 is then clamped between the clamp and the wire-locking frame 3 under the action of the second through-hole 31 of the wire-locking frame 3, so that the wire 8 can be installed. When the wire 8 is to be removed, the drive component 5 drives the wire-locking frame 3 to move downward until the wire through-hole 12, the first through-hole 23, and the second through-hole 31 are aligned, and then the wire 8 is removed. In summary, with the arrangement of the above structure, the disassembly and assembly of the wire 8 are facilitated.

[0031] As in Fig. 3 and Fig. 4, the second through-holes 31 are provided in a number of two, wherein the two second through-holes 31 are respectively provided on the two sides of the wire-locking frame 3; in order to ensure the robustness of the fastening of the wire 8, a cutting portion 311 is integrally formed on the lower wall of the second through-hole 31, wherein the tip of the cutting portion 311 can abut against the side wall of the wire 8 so that, under the action of the elastic force of the spring 4, the tip of the cutting portion 311 can be embedded in the side wall of the wire 8; and wherein two notches 211 are respectively provided on the two sides of the upper part of the connecting portion 21, and wherein the two side walls of the two second through-holes 31 are slidably connected to the four notches 211 in a one-to-one correspondence in the longitudinal direction.With the arrangement of the notches 211, the wire locking frame 3 can move more stably to facilitate the installation of the wire 8.

[0032] As in Fig. 2 and Fig. 5, a third through-hole 14 is provided at the top of the installation groove 11, wherein the drive component 5 comprises a rotary shaft 51 rotatably connected to the side wall on one side of the third through-hole 14, and wherein a columnar groove 15 is provided on one side of the third through-hole 14 to improve the stability of the rotation of the rotary shaft 51, a columnar groove 15 for rotating the rotary shaft 51 is also provided on an adjacent insulating seat 1, wherein the columnar groove 15 extends along the width direction of the insulating seat 1, and wherein the rotary shaft forms a clearance fit with the columnar groove 15, and wherein the rotary shaft 51 is located above the wire-locking frame 3, and wherein a pressure plate 52 is fixedly connected to the rotary shaft 51, and wherein the pressure plate 52 comprises a pressing part 521 and a pushing part 522 includes,and wherein a side of the pressing part 521 facing the wire-locking frame 3 is arcuate, and wherein the pressing part 521 is eccentrically connected to the rotary shaft 51, and wherein one end of the pressing part 521 can abut the upper part of the wire-locking frame 3; and wherein the height of a side of the third through-hole 14 facing away from the wire through-hole 12 is greater than the height of a side of the third through-hole 14 facing the wire through-hole 12, in order to conveniently place the pushing part 522 on the one hand and conveniently limit the pushing part 522 on the other. See , Fig. 6, in order to reduce the possibility of the pressure plate 52 turning over under the action of the elastic force of the spring 4, an arcuate groove 17 is provided on a side wall of the installation groove 11, into which the pressing part is inserted, and an inclined surface 18 is arranged on a side of the third through hole 14 facing away from the arcuate groove 17, against which the pushing part 522 abuts.

[0033] As in Fig. 1 and Fig. 5, a first connecting component 6 is arranged between two adjacent insulating seats 1, which comprises a plurality of mushroom heads 61 installed on one side of an insulating seat 1, and wherein installation holes 16 for installing the mushroom heads 61 are provided in the insulating seat 1, and wherein the mushroom head 61 comprises a root portion 611 and a head portion 612, and wherein the diameter of the head portion 612 is larger than the diameter of the root portion 611, and wherein the head portion 612 is elastic, and wherein the material of the head portion 612 is PA66 plastic without glass fiber; and wherein a plurality of mushroom holes 62 are provided on one side of another insulating seat 1, and wherein the shape of the mushroom hole 62 is the same as the shape of the mushroom head 61; and wherein the mushroom heads 61 are clamped in the mushroom holes 62 in a one-to-one correspondence.With the arrangement of the mushroom heads 61 and the mushroom holes 62, two adjacent insulating seats 1 can be conveniently connected to each other.

[0034] As in Fig. 1 and Fig. As shown in Fig. 5, a side cover 7 is installed on one side of an insulating seat 1 located at the row head, and is detachably connected to one side of the insulating seat 1 by a second connecting component. The structure of the second connecting component is the same as that of the first connecting component 6; the structure of the second connecting component is omitted here. With the arrangement of the side cover 7, the installation groove 11 on the insulating seat 1 at the row head can be blocked to reduce the possibility of electric shock to the operator; with the arrangement of the second connecting assembly, the side cover 7 can be conveniently installed.

[0035] The working principle is as follows: at the initial position, the wire locking frame 3 is pushed to the highest position under the action of the tension force of the upward spring 4, now the wire through hole 12 is blocked and is in the closed state;When the wire 8 is to be installed, the wire locking frame 3 is pushed downward by the drive component 5. After the wire through-hole 12, the first through-hole 23, and the second through-hole 31 are aligned by pushing the wire locking frame 3 downward, the movement of the wire 8 causes one end of the wire 8 to successively penetrate the wire through-hole 12, the first through-hole 23, and the second through-hole 31. Then, the support for the wire locking frame 3 is removed by the drive component 5. Now, the wire locking frame 3 is returned upward under the action of the spring 4. Now, the wire 8 is clamped between the clamp and the wire locking frame 3 under the action of the second through-hole 31 of the wire locking frame 3, so that the wire 8 can be installed;When the wire 8 is to be removed, the wire locking frame 3 is driven downward by the drive component 5 until the wire through-hole 12, the first through-hole 23, and the second through-hole 31 are aligned, and then the wire 8 is removed. In summary, with the arrangement of the above structure, the disassembly and assembly of the wire 8 are facilitated. List of reference symbols 1 insulating seat 11 Installation groove 111 Stop block 12 wire through hole 13 Hole 14 third through hole 15 columnar groove 16 Installation hole 17 arched groove 18 inclined surface 2 connection terminals 21 connecting section 211 notch 22 Insert section 23 first through hole 3 wire locking frame 31 second through hole 311 Cutting section 32 first adjacent section 33 second adjacent section 4 springs 5 Drive components 51 Rotating shaft 52 printing plate 521 Pressed part 522 Push part 6 first connection component 61 Mushroom Head 611 root section 612 head section 62 Mushroom hole 7 Side cover 8 wire

Claims

[1] A coil spring type wire locking terminal block comprising a plurality of insulating seats (1) arranged one after the other, an installation groove (11) being provided in each insulating seat (1), a wire through-hole (12) for passing the wire (8) being provided on the side wall on one side of the installation groove (11), a connection terminal (2) being installed on the bottom of the installation groove (11), one end of the connection terminal (2) being arranged to penetrate the bottom of the installation groove (11), and a first through-hole (23) for passing the wire (8) being provided on one side of the connection terminal (2);and wherein a wire-locking frame (3) is slidably connected to the inside of the installation groove (11), and wherein a compressive elastic member is arranged in the wire-locking frame (3), and wherein one end of the compressive elastic member is installed on the inside of the upper part of the wire-locking frame (3) and the other end is installed on the upper part of the connection terminal (2); and wherein a second through-hole (31) for passing the wire (8) is provided on a side wall of the wire-locking frame (3), and wherein the wire through-hole (12), the first through-hole (23), and the second through-hole (31) are provided correspondingly, respectively;and wherein the top plate of the terminal (2) is arranged so as to penetrate the second through-hole (31), and wherein a drive component (5) for driving the wire-locking frame (3) to move toward the terminal (2) is installed on the top part of the insulating seat (1), wherein a first connecting component (6) is arranged between two adjacent insulating seats (1), said first connecting component comprising a plurality of mushroom heads (61) installed on one side of an insulating seat (1), and wherein installation holes (16) for installing the mushroom heads (61) are provided in the insulating seat (1), and wherein a plurality of mushroom holes (62) are provided on one side of another insulating seat (1), and wherein the mushroom heads (61) are clamped in a one-to-one correspondence in the mushroom holes (62). [2] The coil spring type wire locking terminal block according to claim 1, wherein the mushroom head (61) comprises a root portion (611) and a head portion (612), the diameter of the head portion (612) being larger than the diameter of the root portion (611), and the head portion (612) being elastic; and the shape of the mushroom hole (62) being the same as the shape of the mushroom head (61). [3] A coil spring type wire locking terminal block according to claim 2, wherein a side cover (7) is installed on one side of an insulating seat (1) provided on the row head, which side cover is detachably connected to one side of the insulating seat (1) by a second connecting component, and the structure of the second connecting component is the same as that of the first connecting component (6).

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