A terminal having elasticity

Abstract

The utility model relates to wiring terminal technical field especially a kind of elastic wiring terminal, including terminal shell and conducting strip, the side surface of terminal shell is equipped with wire through-hole, the top of terminal shell is equipped with two through-holes, two the through-hole is communicated with wire through-hole, two the through-hole is inserted with mounting rod, the one end of two the mounting rod extends into wire through-hole, the one end of two the mounting rod is connected with spring piece, the other end of two the mounting rod extends to the outside of terminal shell, the other end of two the mounting rod is all equipped with threaded tube, the threaded tube is connected with terminal shell, the other end of two the mounting rod is all movably installed with threaded rod, the threaded rod and threaded tube are screw connection. The scheme is equipped with two groups of threaded rod and threaded tube, and spring piece is continued to press in the surface of wire after being loosened, and the stability of spring piece and wire contact is improved.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and in particular to a flexible terminal block. Background Technology

[0002] Terminal blocks are accessories used to achieve electrical connections. Industrially, they fall under the category of connectors. With increasing industrial automation and more stringent and precise industrial control requirements, the use of terminal blocks is gradually rising. As the electronics industry develops, the application range and types of terminal blocks are expanding. Currently, the methods for fixing wires in terminal blocks are typically either screw fixing or fixing via elastic clips. Elastic clip fixing, compared to screw fixing, eliminates the need for rotation; the wire is simply pressed down, making it more convenient. However, in the existing technology, although the elastic sheet facilitates the installation of wires, it is easy to accelerate the stress relaxation of the spring material when it is exposed to high temperature environment or subjected to high current for a long time. This causes the contact pressure to slowly decrease over time, resulting in poor contact between the wire and the terminal. Since the elastic stroke of the existing elastic sheet is fixed, it can only be replaced after the elastic sheet relaxes. It is not possible to fix the installation position of the elastic sheet by external tightening, which reduces the installation stability of the elastic sheet. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flexible terminal block.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a flexible terminal block, comprising a terminal housing and a conductive sheet, wherein a wire through hole is provided on the side of the terminal housing, and two through holes are provided on the top of the terminal housing, the two through holes communicating with the wire through hole, and a mounting rod is inserted into each of the two through holes, one end of the two mounting rods extending into the wire through hole, a spring piece connecting the two ends of the two mounting rods, the other end of the two mounting rods extending to the outside of the terminal housing, and a threaded tube sleeved on the other end of each of the two mounting rods, the threaded tube being connected to the terminal housing, and a threaded rod movably mounted on the other end of each of the two mounting rods, the threaded rod and the threaded tube being threadedly connected.

[0005] Preferably, the conductive sheet penetrates the bottom of the terminal housing and extends into the wire through-hole, and the positions of the conductive sheet and the spring sheet correspond.

[0006] Preferably, a mounting block is fixedly sleeved on the surface of the mounting rod, the mounting block is located in the through hole, a fixing block is installed at the bottom end of the through hole, a mounting rod through hole is opened on the surface of the fixing block, the mounting rod is inserted into the mounting rod through hole, and a compression spring is movably sleeved on the surface of the mounting rod, the two ends of the compression spring are respectively connected to the surfaces of the mounting block and the fixing block.

[0007] Preferably, two retaining rings are installed on the top of the terminal housing, the inner holes of the two retaining rings are arranged coaxially with the two through holes, and the bottom of the threaded tube is installed on the top of the retaining rings.

[0008] Preferably, the threaded rod and threaded tube are made of uniform flame-retardant polypropylene plastic.

[0009] Preferably, the top of the mounting rod is provided with a mounting groove, and two parallel limiting rings are installed inside the mounting groove. A connecting block is inserted between the inner holes of the two limiting rings. One end of the connecting block is installed at the bottom end of the threaded rod. A limiting block is fixedly sleeved on the surface of the connecting block. The top and bottom of the limiting block are in contact with the surface of the limiting rings, respectively. Multiple connecting rods are connected between the two limiting rings.

[0010] Compared with the prior art, the present invention has the following beneficial effects: This solution uses two sets of threaded rods and threaded tubes. As the two threaded rods move through the two threaded tubes, they push two mounting rods to move in two through holes. This allows the two mounting rods to simultaneously push the spring sheet to press against the wire. As the elasticity of the spring sheet decreases, the two threaded rods can continue to rotate, allowing them to continue pushing the spring sheet and shortening the distance between the spring sheet fixing point and the wire. With the distance shortened, the relaxed spring sheet can continue to press against the surface of the wire, improving the stability of the contact between the spring sheet and the wire. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the terminal housing of this utility model; Figure 4 This is a sectional view of the connection structure between the threaded rod and the mounting rod of this utility model; Figure 5 This is a schematic diagram of the structure of a flexible terminal block according to the present invention.

[0012] In the diagram: 1. Spring piece; 2. Conductive piece; 3. Wire through hole; 4. Mounting rod; 5. Fixing ring; 6. Threaded rod; 7. Threaded tube; 8. Spring piece mounting piece; 9. Terminal housing; 10. Fixing block; 11. Through hole; 12. Compression spring; 13. Mounting block; 14. Connecting rod; 15. Limiting block; 16. Limiting ring; 17. Connecting block; 18. Mounting groove. Detailed Implementation

[0013] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0014] like Figure 1-5 The diagram shows a flexible terminal block, including a terminal housing 9 and a conductive sheet 2. A wire through hole 3 is provided on the side of the terminal housing 9. The conductive sheet 2 passes through the bottom of the terminal housing 9 and extends into the wire through hole 3. The conductive sheet 2 and the spring sheet 1 are positioned correspondingly. The wire through hole 3 allows wires to be inserted, facilitating contact between the conductive end of the wire, the conductive sheet 2, and the spring sheet 1.

[0015] Two through holes 11 are formed on the top of the terminal housing 9, which communicate with the wire through holes 3. A mounting rod 4 is inserted into each of the two through holes 11. One end of each mounting rod 4 extends into the wire through hole 3, and a spring clip mounting member 8 is connected between the two ends of the mounting rod 4. A spring clip 1 is mounted on the bottom of the spring clip mounting member 8. The other ends of each mounting rod 4 extend to the outside of the terminal housing 9, and a threaded tube 7 is fitted onto the other end of each mounting rod 4. The threaded tube 7 is connected to the terminal housing 9, and a threaded rod 6 is movably mounted on the other end of each mounting rod 4. The threaded rod 6 and the threaded tube 7 are connected to the terminal housing 9. The threaded tube 7 is connected by threads. As the two threaded rods 6 move in the two threaded tubes 7, the two threaded rods 6 push the two mounting rods 4 to move in the two through holes 11. This allows the two mounting rods 4 to simultaneously push the spring piece 1 to press the conductive end of the wire onto the conductive sheet 2. As the elasticity of the spring piece 1 decreases, the two threaded rods 6 can continue to rotate, allowing them to continue pushing the spring piece 1 and shortening the distance between the fixing point of the spring piece 1 and the wire. After the distance is shortened, the relaxed spring piece 1 can continue to press on the surface of the wire, improving the stability of the contact between the spring piece 1 and the wire.

[0016] Mounting rod 4 is fixedly fitted with mounting block 13, which is located in through hole 11. Fixing block 10 is installed at the bottom of through hole 11. Mounting rod 4 is inserted through mounting rod through hole on surface of fixing block 10. Compression spring 12 is movably fitted on surface of mounting rod 4. Both ends of compression spring 12 are connected to the surfaces of mounting block 13 and fixing block 10 respectively. After mounting rod 4 moves downward, mounting rod 4 pushes mounting block 13 to move downward synchronously. After mounting block 13 pushes compression spring 12 to contract under force, compression spring 12 is in energy storage state. After threaded rod 6 separates from threaded tube 7, compression spring 12 releases energy and pushes mounting rod 4 in the opposite direction. Mounting rod 4 moves upward, driving spring piece mounting 8 to move upward. Spring piece mounting 8 drives spring piece 1 to move upward synchronously.

[0017] Two retaining rings 5 ​​are installed on the top of the terminal housing 9. The inner holes of the two retaining rings 5 ​​are arranged coaxially with the two through holes 11. The bottom of the threaded tube 7 is installed on the top of the retaining rings 5. The retaining rings 5 ​​are used to seal the gap between the through holes 11 and the mounting rod 4, so as to prevent dust from accumulating in the through holes 11 and protect the elasticity of the compression spring 12.

[0018] The threaded rod 6 and the threaded tube 7 are made of uniform flame-retardant polypropylene plastic. Polypropylene has the characteristics of high temperature resistance, flame retardancy, good insulation and high rigidity, which makes it convenient for workers to touch the threaded rod 6 for operation. At the same time, the high rigidity of polypropylene improves the stability of the threaded connection between the threaded rod 6 and the threaded tube 7.

[0019] The top of the mounting rod 4 has a mounting groove 18. Inside the mounting groove 18, two parallel limiting rings 16 are installed. A connecting block 17 is inserted between the inner holes of the two limiting rings 16. One end of the connecting block 17 is installed at the bottom end of the threaded rod 6. A limiting block 15 is fixedly sleeved on the surface of the connecting block 17. The top and bottom of the limiting block 15 are in contact with the surface of the limiting rings 16, respectively. Multiple connecting rods 14 are connected between the two limiting rings 16. The mounting groove 18 allows the limiting block 15 and the connecting block 17 to be installed in a concealed manner, saving installation space. With the setting of the two limiting rings 16 and the limiting block 15, when the connecting block 17 is subjected to force and rotates, it drives the limiting block 15 to rotate synchronously. The limiting block 15 rotates between the two limiting rings 16, which facilitates the connection block 17 to move along the axial direction of the threaded rod 6 and push the limiting rings 16 through the limiting block 15. When the limiting rings 16 are subjected to force, they push the mounting rod 4 to move along the axial direction, which facilitates the threaded rod 6 to push the mounting rod 4 to move synchronously during the helical motion.

[0020] Working principle: When using this terminal block, simply insert the conductive end of the wire into the wire through hole 3, then press down on the two threaded rods 6. After the threaded rods 6 contact the threaded tube 7, rotate the two threaded rods 6 simultaneously. As the threaded rods 6 spiral within the threaded tube 7, they push the two mounting rods 4 to move downwards synchronously. The two mounting rods 4 push the spring piece 1 to press on the conductive end of the wire, and the conductive end presses on the conductive sheet 2. The conductive sheet is connected to other equipment or switches through the wire.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible terminal block, comprising a terminal housing (9) and a conductive sheet (2), characterized in that, The terminal housing (9) has a wire through hole (3) on its side and two through holes (11) on its top. The two through holes (11) are connected to the wire through hole (3). An installation rod (4) is inserted into each of the two through holes (11). One end of the two installation rods (4) extends into the wire through hole (3). A spring piece (1) is connected between the two ends of the two installation rods (4). The other end of the two installation rods (4) extends to the outside of the terminal housing (9). A threaded tube (7) is fitted onto the other end of the two installation rods (4). The threaded tube (7) is connected to the terminal housing (9). A threaded rod (6) is movably installed on the other end of the two installation rods (4). The threaded rod (6) and the threaded tube (7) are threadedly connected.

2. The flexible terminal block according to claim 1, characterized in that, The conductive sheet (2) penetrates the bottom of the terminal housing (9) and extends into the wire through hole (3), and the conductive sheet (2) and the spring sheet (1) are positioned correspondingly.

3. A flexible terminal block according to claim 1, characterized in that, The mounting rod (4) is fixedly fitted with a mounting block (13), which is located in the through hole (11). A fixing block (10) is installed at the bottom of the through hole (11). The surface of the fixing block (10) is provided with a mounting rod through hole. The mounting rod (4) is inserted into the mounting rod through hole. A compression spring (12) is movably fitted on the surface of the mounting rod (4). The two ends of the compression spring (12) are respectively connected to the surfaces of the mounting block (13) and the fixing block (10).

4. A flexible terminal block according to claim 1, characterized in that, Two fixing rings (5) are installed on the top of the terminal housing (9). The inner holes of the two fixing rings (5) are arranged coaxially with the two through holes (11). The bottom of the threaded tube (7) is installed on the top of the fixing rings (5).

5. A flexible terminal block according to claim 1, characterized in that, The threaded rod (6) and threaded tube (7) are made of uniform polypropylene flame-retardant plastic.

6. A flexible terminal block according to claim 1, characterized in that, The top of the mounting rod (4) is provided with a mounting groove (18), and two parallel limiting rings (16) are installed inside the mounting groove (18). A connecting block (17) is inserted between the inner holes of the two limiting rings (16). One end of the connecting block (17) is installed at the bottom end of the threaded rod (6). A limiting block (15) is fixedly sleeved on the surface of the connecting block (17). The top and bottom of the limiting block (15) are in contact with the surface of the limiting ring (16) respectively. Multiple connecting rods (14) are connected between the two limiting rings (16).

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