A quick-plug terminal block

Abstract

This invention provides a quick-plugging terminal block, comprising a terminal plate, slots, conductive heads, wire one, wire two, limiting holes, countersunk holes, compression posts, and compression springs. The terminal plate has several sets of slots positioned mirror-imagely at its top and bottom. Each slot has a limiting hole at its upper part and a countersunk hole at its lower part. Each limiting hole is elastically connected to one end of a compression post via a compression spring, and the other end of each compression post is slidably connected to the corresponding slot. Wire one and wire two are each secured in their corresponding countersunk holes by conductive heads, with each conductive head making contact with a corresponding compression post. This invention facilitates quick plugging and unplugging of the wires and conductive heads. The conductive heads and terminal blocks are stably fixed without bolts, making the overall design more convenient and flexible.

Description

Technical Field

[0001] This invention relates to the field of terminal blocks, and more particularly to a terminal block that can be quickly plugged in and unplugged. Background Technology

[0002] As is well known, terminal blocks are frequently used in the electrical field. Common examples include terminal blocks, which are suitable for interconnecting a large number of wires. For instance, when controlling electrical equipment using a PLC, terminal blocks are needed for wiring.

[0003] However, existing terminal blocks require the first fixing of a conductive plug to one end of the wire during use. This requires the use of external terminal crimping pliers before the plug can be inserted into the terminal. Finally, the conductive plug is secured with bolts, which is very cumbersome. Furthermore, in electrical wiring training and teaching scenarios, the bolts are prone to stripping due to the need for repeated disassembly and reassembly.

[0004] Therefore, it is essential to invent a terminal block that can be quickly plugged in and unplugged. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a quick-plugging terminal block with the following technical solution: a quick-plugging terminal block includes a terminal plate, slots, conductive heads, wire one, wire two, limiting holes, countersunk holes, pressing posts, and compression springs, wherein: a plurality of slots are provided at mirror positions on the upper and lower sides of the front of the terminal plate, and each slot has a limiting hole at the upper part and a countersunk hole at the lower part; each limiting hole is elastically connected to one end of the pressing post through a compression spring, and the other end of each pressing post is in the corresponding slot and slidably connected to the slot; wire one and wire two are each secured in the corresponding countersunk holes by conductive heads, and each conductive head is in contact with each pressing post.

[0006] Preferably, the back of the terminal board is provided with a U-shaped groove, and the two sides of the front of the terminal board are provided with notches at symmetrical positions, and each notch is provided with a through hole.

[0007] Preferably, each of the limiting holes has a limiting groove on its outer side; each of the countersunk holes has a wire inlet groove on its outer side, and an annular electrode plate matching the top of the countersunk hole is fixedly installed inside the top of each countersunk hole; an electrode plate is fixedly installed between each countersunk hole inside each set of slots, and each electrode plate is fixedly connected to each annular electrode plate; the first wire and the second wire pass through each wire inlet groove into their respective countersunk holes and are movably connected to each countersunk hole.

[0008] Preferably, each of the extrusion columns is fixedly mounted with an extrusion disc at its bottom end, and each extrusion disc is in contact with a corresponding conductive head; a handle is fixedly mounted on the upper side of each of the extrusion columns, and each handle is slidably connected to each of the limiting grooves.

[0009] Preferably, the conductive head includes an insulating platform, a conductive platform, an elastic limiting cylinder, a second elastic limiting cylinder, a slot, a second compression spring, and a compression ring. The bottom surface of the insulating platform is fixedly connected to the bottom surface of the conductive platform, and the bottom surface of the conductive platform is fixedly connected to the top surface of the elastic limiting cylinder. The bottom end of the elastic limiting cylinder is fixedly connected to the top end of the second elastic limiting cylinder. Three identical slots are symmetrically arranged on the surfaces of the elastic limiting cylinder and the second elastic limiting cylinder, and the diameter of the elastic limiting cylinder is smaller than the diameter of the second elastic limiting cylinder. The second compression spring is sleeved on the outside of the elastic limiting cylinder, and one end of the second compression spring is fixedly connected to the bottom surface of the conductive platform, while the other end is fixedly connected to one end of the compression ring. The compression ring is sleeved on the elastic limiting cylinder and the second elastic limiting cylinder. The outer side of the second limiting cylinder is slidably connected to the elastic limiting cylinder and the second elastic limiting cylinder; electrode plates are fixedly installed on the inner surfaces of the elastic limiting cylinder and the second elastic limiting cylinder, and the electrode plates inside the elastic limiting cylinder and the second elastic limiting cylinder are fixedly connected to the conductive platform; the inner diameter of the compression ring is larger than the diameter of the elastic limiting cylinder, and the inner diameter of the compression ring matches the diameter of the second elastic limiting cylinder; each of the first and second wires is fixed in the respective elastic limiting cylinder and the second elastic limiting cylinder; the insulating platform is located at the top of the countersunk hole and contacts the compression plate; the conductive platform is located inside the top of the countersunk hole and contacts the annular electrode plate inside the countersunk hole; the elastic limiting cylinder, the second elastic limiting cylinder, the second compression spring, and the compression ring are movably connected to the inside of the countersunk hole.

[0010] Compared with the prior art, the advantages of the present invention are as follows:

[0011] This invention, through the structural design between the terminal block and the conductive head, enables the connection and disassembly of the conductive head and the terminal block to be completed quickly without bolts. Therefore, during repeated disassembly and assembly of the conductive head and the terminal block, the stripping phenomenon that occurs with screws will not occur, making the overall use more convenient and flexible.

[0012] Furthermore, thanks to the design of the structure between the conductive tip and the wire, the conductive tip can be quickly inserted into or removed from the wire without the need for external crimping pliers, making it very convenient and flexible. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2This is a partially enlarged cross-sectional structural diagram of the present invention.

[0015] Figure 3 This is a schematic diagram of the conductor and conductive head structure of the present invention.

[0016] Figure 4 This is a schematic diagram of the conductive head structure of the present invention.

[0017] In the picture:

[0018] Terminal plate 1, slot 2, conductive head 3, insulating platform 31, conductive platform 32, elastic limiting cylinder 33, elastic limiting cylinder II 34, slot 35, compression spring II 36, extrusion ring 37, wire I 4, wire II 5, limiting hole 6, countersunk hole 7, limiting groove 8, wire inlet groove 9, electrode plate 10, extrusion column 11, extrusion disc 12, handle 13, compression spring 14, U-shaped groove 15, notch 16, through hole 17. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0020] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Example 1

[0023] Reference Figure 1-4 A quick-plug terminal block includes a terminal plate 1, slots 2, conductive heads 3, wire 1 4, wire 2 5, limiting holes 6, countersunk holes 7, pressing posts 11, and compression springs 14. The terminal plate 1 has several sets of slots 2 at mirror-image positions on its upper and lower sides. Each slot 2 has a limiting hole 6 at its upper part and a countersunk hole 7 at its lower part. Each limiting hole 6 is elastically connected to one end of a pressing post 11 via a compression spring 14, and the other end of each pressing post 11 is in and slidably connected to the corresponding slot 2. Wire 1 4 and wire 2 5 are each secured in their corresponding countersunk holes 7 via conductive heads 3, and each conductive head 3 is in contact with a corresponding pressing post 11.

[0024] It should be noted that a U-shaped groove 15 is provided on the back of the terminal board 1, and notches 16 are provided on both sides of the front of the terminal board 1 in symmetrical positions, and each notch 16 has a through hole 17 through it.

[0025] The U-shaped groove 15 allows for quick assembly and disassembly of the terminal block 1 with the corresponding guide rail. If there is no guide rail, the terminal block 1 can be fixed in the required position by bolts passing through the through holes 17. Therefore, there are multiple fixing methods, which allows the operator to select the appropriate fixing method according to the actual situation.

[0026] Each limiting hole 6 has a limiting groove 8 on its outer side; each countersunk hole 7 has a wire inlet groove 9 on its outer side, and each countersunk hole 7 has an annular electrode plate that matches the top of the countersunk hole 7 fixedly installed inside its top; each countersunk hole 7 in each set of slots 2 has an electrode plate 10 fixedly installed between each countersunk hole 7, and each electrode plate 10 is fixedly connected to each annular electrode plate; wire 1 4 and wire 2 5 pass through each wire inlet groove 9 into each corresponding countersunk hole 7, and are movably connected to each countersunk hole 7.

[0027] By using the limiting hole 6 in conjunction with the compression spring 14, the extrusion column 11 can move up and down along the limiting hole 6, which facilitates the conductive head 3 entering into and exiting the countersunk hole 7. At the same time, the countersunk hole 7 allows the conductive head 3 to be stably fixed in the countersunk hole 7 and to contact the annular electrode plate in the countersunk hole 7.

[0028] Each extrusion column 11 has an extrusion plate 12 fixedly installed at its bottom end, and each extrusion plate 12 is in contact with the corresponding conductive head 3; each extrusion column 11 has a handle 13 fixedly installed on its upper outer side, and each handle 13 is slidably connected to each limiting groove 8.

[0029] With the compression spring 14 and the compression column 11 and compression plate 12 working together, the compression plate 12 can automatically press the insulating platform 31, thereby preventing the conductive head 3 from coming out of the countersunk hole 7 and ensuring stable contact between the conductive platform 32 and the annular electrode plate. At the same time, with the handle 13, when it is necessary to remove the conductive head 3 from the countersunk hole 7, simply push the compression column 11 upward with the handle 13 to separate the compression plate 12 from the insulating platform 31, and the conductive head 3 can be removed from the countersunk hole 7.

[0030] The conductive head 3 includes an insulating platform 31, a conductive platform 32, an elastic limiting cylinder 33, an elastic limiting cylinder 2 34, a slot 35, a compression spring 2 36, and a compression ring 37. The bottom surface of the insulating platform 31 is fixedly connected to the bottom surface of the conductive platform 32, and the bottom surface of the conductive platform 32 is fixedly connected to the top surface of the elastic limiting cylinder 33. The bottom end of the elastic limiting cylinder 33 is fixedly connected to the top end of the elastic limiting cylinder 2 34. Three identical slots 35 are symmetrically opened on the surfaces of the elastic limiting cylinder 33 and the elastic limiting cylinder 2 34, and the diameter of the elastic limiting cylinder 33 is smaller than the diameter of the elastic limiting cylinder 2 34. The compression spring 2 36 is sleeved on the outside of the elastic limiting cylinder 33, and one end of the compression spring 2 36 is fixedly connected to the bottom surface of the conductive platform 32, and the other end of the compression spring 2 36 is fixedly connected to one end of the compression ring 37. The compression ring 37 is sleeved on the elastic limiting cylinder 33 and the elastic limiting cylinder 2 34. The outer side of the head 3 is slidably connected to the elastic limiting cylinder 33 and the second elastic limiting cylinder 34; electrode plates are fixedly installed on the inner surfaces of the elastic limiting cylinder 33 and the second elastic limiting cylinder 34, and the electrode plates inside the elastic limiting cylinder 33 and the second elastic limiting cylinder 34 are fixedly connected to the conductive platform 32; the inner diameter of the compression ring 37 is larger than the diameter of the elastic limiting cylinder 33, and the inner diameter of the compression ring 37 matches the diameter of the second elastic limiting cylinder 34; each of the first wires 4 and the second wires 5 are fixed in the respective elastic limiting cylinders 33 and the second elastic limiting cylinder 34; the insulating platform 31 is located at the top of the countersunk hole 7 and contacts the compression plate 12; the conductive platform 32 is located inside the top of the countersunk hole 7 and contacts the annular electrode plate inside the countersunk hole 7; the elastic limiting cylinder 33, the second elastic limiting cylinder 34, the second compression spring 36 and the compression ring 37 are movably connected to the inside of the countersunk hole 7; the size of the slot 2 is larger than the size of the conductive head 3;

[0031] The elastic limiting cylinder 33 and the second elastic limiting cylinder 34 allow the conductor core to pass through them. Simultaneously, the compression ring 37, through the slot 35 and the compression spring 36, compresses the elastic limiting cylinder 33 and the second elastic limiting cylinder 34, causing them to contract towards the center, thus enclosing and clamping the conductor core and preventing it from detaching from the conductive head 3.

[0032] In this embodiment, when connecting the wires via the terminal block, firstly, take out a conductive head 3, pinch the compression ring 37 with one hand to compress the second spring 36, exposing the second elastic limiting cylinder 34. Then, hold the first wire 4 with the other hand, allowing the core of the first wire 4 to pass through the second elastic limiting cylinder 34 into the second elastic limiting cylinder 33. At this time, release the compression ring 37. Under the action of the second spring 36, the compression ring 37 will return to its original position, thereby compressing the second elastic limiting cylinder 34. The second elastic limiting cylinder 34 will then contract and clamp the core of the first wire 4, thus completing the fixing work between the conductive head 3 and the first wire 4. Then, take out another conductive head 3 and fix it to the second wire 5 in the same way as described above. Then, push the handle 13 upwards. Press the compression post 11 to move the compression plate 12 away from the top of the countersunk hole 7. At this time, the conductive head 3 on the first wire 4 can be placed into the corresponding countersunk hole 7 through the slot 2, and the first wire 4 can be passed from the inlet slot 9 into the countersunk hole 7. Then release the handle 13. Due to the setting of the compression spring 14, the compression post 11 will return to its original position, so that the compression plate 12 contacts the insulating platform 31 and presses the insulating platform 31, thereby completing the connection with the first wire 4. Then, in the same way, fix the conductive head 3 on the second wire 5 into the countersunk hole 7 corresponding to the first wire 4. When disassembly is required later, simply push the compression post 11 up again through the handle 13 to move the compression plate 12 away from the insulating platform 31, and the conductive head 3 can be removed from the countersunk hole 7.

[0033] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A quick-plug terminal block, characterized in that: The device includes a terminal plate (1), slots (2), conductive heads (3), wire one (4), wire two (5), limiting holes (6), countersunk holes (7), extrusion pillars (11), and compression springs (14). The terminal plate (1) has several sets of slots (2) at mirror-image positions on its upper and lower sides. Each slot (2) has a limiting hole (6) at its upper side and a countersunk hole (7) at its lower side. Each limiting hole (6) is elastically connected to one end of the extrusion pillar (11) via a compression spring (14), and the other end of each extrusion pillar (11) is located in its corresponding slot (2) and slidably connected to it. Wire one (4) and wire two (5) are each secured in their corresponding countersunk holes (7) via conductive heads (3), and each conductive head (3) is in contact with each extrusion pillar (11). Each of the limiting holes (6) has a limiting groove (8) on its outer side; each of the countersunk holes (7) has a wire inlet groove (9) on its outer side, and each of the countersunk holes (7) has an annular electrode plate that matches the top of the countersunk hole (7) fixedly installed inside its top; each of the countersunk holes (7) in each set of slots (2) has an electrode plate (10) fixedly installed between them, and each electrode plate (10) is fixedly connected to each annular electrode plate; the first wire (4) and the second wire (5) pass through the wire inlet groove (9) into the corresponding countersunk hole (7) and are movably connected to each countersunk hole (7); Each of the extrusion columns (11) has an extrusion plate (12) fixedly installed at its bottom end, and each extrusion plate (12) is in contact with the corresponding conductive head (3); each of the extrusion columns (11) has a handle (13) fixedly installed on its upper outer side, and each handle (13) is slidably connected to each of the limiting grooves (8).

2. A quick-plug terminal block as described in claim 1, characterized in that: The terminal board (1) has a U-shaped groove (15) on its back side, and notches (16) are provided on both sides of the front side of the terminal board (1) in symmetrical positions, and each notch (16) has a through hole (17) inside.

3. A quick-plug terminal block as described in claim 1, characterized in that: The conductive head (3) includes an insulating platform (31), a conductive platform (32), an elastic limiting cylinder (33), an elastic limiting cylinder II (34), a slot (35), a compression spring II (36), and a compression ring (37). The bottom surface of the insulating platform (31) is fixedly connected to the bottom surface of the conductive platform (32), and the bottom surface of the conductive platform (32) is fixedly connected to the top surface of the elastic limiting cylinder (33). The bottom end of the elastic limiting cylinder (33) is fixedly connected to the top end of the elastic limiting cylinder II (34). Three identical slots (35) are symmetrically positioned on the surface of the elastic limiting cylinder (33), and the diameter of the elastic limiting cylinder (33) is smaller than the diameter of the elastic limiting cylinder (34). The compression spring (36) is sleeved on the outside of the elastic limiting cylinder (33), and one end of the compression spring (36) is fixedly connected to the bottom surface of the conductive platform (32), while the other end of the compression spring (36) is fixedly connected to one end of the compression ring (37). The compression ring (37) is sleeved on the elastic limiting cylinder (33) and the elastic limiting cylinder (34). The outer side of the second elastic limiting cylinder (34) is slidably connected to the elastic limiting cylinder (33) and the second elastic limiting cylinder (34); the inner surfaces of the elastic limiting cylinder (33) and the second elastic limiting cylinder (34) are fixedly installed with electrode plates, and the electrode plates inside the elastic limiting cylinder (33) and the second elastic limiting cylinder (34) are fixedly connected to the conductive platform (32); the inner diameter of the extrusion ring (37) is larger than the diameter of the elastic limiting cylinder (33), and the inner diameter of the extrusion ring (37) matches the diameter of the second elastic limiting cylinder (34); The first wire (4) and each second wire (5) are respectively fixed in the elastic limiting cylinder (33) and the second elastic limiting cylinder (34); the insulating platform (31) is located at the top of the countersunk hole (7) and is in contact with the extrusion plate (12); the conductive platform (32) is located inside the top of the countersunk hole (7) and is in contact with the annular electrode plate inside the countersunk hole (7); the elastic limiting cylinder (33), the second elastic limiting cylinder (34), the second compression spring (36) and the extrusion ring (37) are movably connected to the inside of the countersunk hole (7).

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