A coupler structure for a terminal

Abstract

The utility model relates to the technical field of coupler, and disclose a kind of coupler structure of terminal, including plastic shell, the inside one end of plastic shell is equipped with fixed elastic sheet, fixed plate is slidably installed in the inside lower of plastic shell, the inside upper of plastic shell is threadedly connected with compression bolt, and one end of plastic shell is inserted and is equipped with terminal, when coupler is needed to use, terminal is inserted into insertion hole, so that terminal is contacted with conducting plate, the preliminary fixing of terminal is completed, it is simple and quick to operate, the fixation of terminal is convenient, whether rotation rotating bolt is selected according to the stability of use scene simultaneously, reinforce terminal, prevent terminal loosening and falling off under the vibration environment, improve stability, increase the scope of application.

Description

Technical Field

[0001] This utility model relates to the field of coupler technology, specifically to a coupler structure with a terminal block. Background Technology

[0002] Because wiring is cumbersome to connect and difficult to replace, it is not conducive to circuit testing. Therefore, wiring terminals are generally used to connect and fix the wiring, making it easy to connect and replace the wiring and enabling it to meet complex connection requirements before being applied to actual circuit systems. Couplers are devices that assist wiring terminals in achieving reliable connections, and they are indispensable, especially in multi-line connection scenarios such as industrial automation and power distribution.

[0003] In existing technologies, terminal couplers require the terminals to be connected to the coupler's connection point during use. When the line is being repaired or replaced, the wires are then removed from the coupler. However, due to the different connection methods of the couplers, they cannot be adapted to different scenarios. This is why operators need to select different types of couplers according to the usage scenario, which is very troublesome. In addition, improper selection can easily cause the line to become loose and inconvenient to use.

[0004] Therefore, we propose a terminal block coupler structure to address the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a coupler structure for a terminal block, so as to solve the problem mentioned in the background art that when using a coupler, the operator needs to select different types of couplers according to the usage scenario, which is very troublesome to operate, and at the same time, improper selection can easily cause the circuit to become loose and inconvenient to use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a coupler structure for a terminal block, comprising a plastic housing, a fixing spring piece installed at one end inside the plastic housing, a fixing plate slidably installed through the lower part of the plastic housing, a clamping bolt threadedly connected to the upper part of the plastic housing, and a terminal block inserted into one end of the plastic housing. A pressure plate is fixedly installed at the lower end of the fixing spring, and the pressure plate has an inverted U-shaped design.

[0007] Preferably, the interior of the plastic shell is provided with a hollow groove, the lower end of which is provided with multiple sets of fixing grooves, the lower end of which is provided with sliding grooves, and sliding holes are provided through both sides of the lower end of the hollow groove. A fixing hole is provided through the center of the sliding groove, and an annular groove is provided on the outer periphery of the middle end of the fixing hole. A rotating hole is provided through the lower end of the fixing hole. A fixing block is fixedly installed on the inner side of one end of the hollow groove. A support wheel is movably installed on the inner side of the fixing block via a rotating shaft. A fixing frame is fixedly installed on the inner side of the upper part of the hollow groove. Three fixing rings are installed on the inner side of the fixing frame via a rotating shaft. A switch is provided through one end of the plastic shell, and an insertion hole is also provided through the same end of the plastic shell. A guide post is fixedly installed in the middle of the upper part of the plastic shell.

[0008] Preferably, a conductive plate is fixedly installed inside the fixing groove, and the width of the two sides of the conductive plate is slightly smaller than that of the fixing groove.

[0009] Preferably, the switch includes a button and a mounting hole that extends through the button. A spring is fixedly installed at one end of the mounting hole, and a limit plate is fixedly connected to the other end of the spring.

[0010] Preferably, the upper end of the guide post is provided with a protective hole, the middle part of the guide post is provided with a threaded hole, and the lower end of the guide post is provided with a movable hole.

[0011] Preferably, a rotating bolt is threadedly connected to the center of the fixing plate.

[0012] Preferably, a pressure block is movably mounted below the clamping bolt via a rotating shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. When the coupler is needed, insert the terminal block into the insertion hole so that the terminal block contacts the conductive plate to complete the initial fixation of the terminal block. The operation is simple and quick, and it is convenient to fix the terminal block. At the same time, depending on the stability of the usage scenario, you can choose whether to rotate the rotating bolt to reinforce the terminal block, prevent the terminal block from loosening and falling off in the vibration environment, improve stability, and increase the scope of application.

[0014] 2. By using the interlocking mechanism between the pressure plate and the conductive plate, it is possible to use different specifications of the same type of terminal block. At the same time, it can increase the contact area between the terminal block and the conductive plate, reduce the probability of poor contact, and improve the reliability of the connection.

[0015] 3. When repeated plugging and unplugging of the terminals causes fatigue of the pressure plate and loosening, rotating the clamping bolts causes the fixing spring to undergo elastic deformation, increasing the elastic force, thereby increasing the contact pressure, improving transmission stability, and extending the service life of the device. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the coupler of this utility model; Figure 3 This is a cross-sectional view of the coupler of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the coupler of this utility model; Figure 5 This is a cross-sectional view of the plastic shell of this utility model; Figure 6 This is a schematic diagram of the disassembled structure of the fixing component of this utility model.

[0017] In the diagram: 1. Plastic outer shell; 11. Empty groove; 12. Fixing groove; 121. Conductive plate; 13. Sliding groove; 131. Sliding hole; 14. Fixing hole; 141. Annular groove; 142. Rotating hole; 15. Fixing block; 151. Support wheel; 16. Fixing frame; 161. Fixing ring; 17. Switch component; 171. Limiting plate; 172. Mounting hole; 173. Spring; 174. Button; 18. Guide post; 181. Threaded hole; 182. Protective hole; 183. Moving hole; 19. Insertion hole; 2. Fixing spring; 21. Pressure plate; 3. Fixing plate; 31. Rotating bolt; 32. Snap ring; 4. Tightening bolt; 41. Pressure block; 5. Wiring terminal. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-6 A coupler structure for a terminal block includes a plastic housing 1. A fixing spring 2 is installed at one end inside the plastic housing 1. A fixing plate 3 is slidably installed through the lower part of the plastic housing 1. The fixing plate 3 is engaged at the lower end of the fixing spring 2. The fixing plate 3 is used to clamp the fixing spring 2 to improve the fixing ability. A clamping bolt 4 is threadedly connected to the upper part of the plastic housing 1. The fixing spring 2 is provided below the clamping bolt 4. The clamping bolt 4 is used to clamp the fixing spring 2 to increase the pressure of the fixing spring 2. A terminal block 5 is inserted and installed at one end of the plastic housing 1. The fixing spring 2 is provided above the inner end of the terminal block 5 to fix the terminal block 5.

[0020] A pressure plate 21 is fixedly installed at the lower end of the fixed spring 2, and the pressure plate 21 is designed in an inverted U-shape.

[0021] The interior of the plastic shell 1 has a hollow groove 11. Multiple sets of fixing grooves 12 are provided at the lower end of the hollow groove 11. Sliding grooves 13 are provided at the lower ends of the fixing grooves 12. Sliding holes 131 are provided through the lower ends of both sides of the hollow groove 11, communicating with the sliding grooves 13. Fixing holes 14 are provided through the center of the sliding grooves 13, communicating with them. An annular groove 141 is provided around the outer periphery of the center of the fixing hole 14. A rotating hole 142 is provided through the lower part of the fixing hole 14. The fixing hole 14 and the rotating hole 142... The two parts are connected. A fixing block 15 is fixedly installed on the inner side of one end of the slot 11. A support wheel 151 is movably installed on the inner side of the fixing block 15 via a rotating shaft. A fixing frame 16 is fixedly installed on the inner side of the upper part of the slot 11. Three fixing rings 161 are installed on the inner side of the fixing frame 16 via a rotating shaft. A switch 17 is provided through one end of the plastic shell 1. An insertion hole 19 is also provided through the same end of the plastic shell 1, and the insertion hole 19 is located below the switch 17. A guide post 18 is fixedly installed in the middle of the upper part of the plastic shell 1, and the guide post 18 is closer to the upper center of the plastic shell 1 than the fixing frame 16.

[0022] A conductive plate 121 is fixedly installed inside the fixing groove 12. The width of the two sides of the conductive plate 121 is slightly smaller than that of the fixing groove 12. Fixing springs 2 are engaged on both sides of the conductive plate 121 to facilitate the fixing of the wiring terminal 5. The two sides of the pressure plate 21 protrude and are engaged into the two sides of the fixing groove 12. A support wheel 151 is installed at the upper arc of the fixing spring 2, and a fixing ring 161 is attached to the upper end of the fixing spring 2 to prevent the fixing spring 2 from sliding.

[0023] The switch 17 includes a button 174 and a mounting hole 172 that passes through the button 174. A spring 173 is fixedly installed at one end of the mounting hole 172, and a limit plate 171 is fixedly connected to the other end of the spring 173. The limit plate 171 is fixedly installed at one end of the slot 11. By pressing the button 174, the fixing spring 2 is deformed, and the terminal 5 is released.

[0024] The upper end of the guide post 18 is provided with a protective hole 182, the middle part of the guide post 18 is provided with a threaded hole 181, the lower end of the guide post 18 is provided with a movable hole 183, and the threaded hole 181 is connected to the protective hole 182 and the movable hole 183.

[0025] A rotating bolt 31 is threadedly connected to the center of the fixed plate 3. The fixed plate 3 is slidably installed in the sliding groove 13 and the sliding hole 131. The rotating bolt 31 is movably installed in the fixed hole 14 and the rotating hole 142. A retaining ring 32 is fixed to the outer periphery of the middle part of the rotating bolt 31, and the retaining ring 32 is rotatably installed in the annular retaining groove 141. The fixed plate 3 is moved up and down by rotating the rotating bolt 31, thereby strengthening or loosening the fixing spring 2.

[0026] Specifically, when the coupler is needed, the terminal 5 is inserted into the insertion hole 19, and then the fixing spring 2 deforms to press the terminal 5, so that the terminal 5 contacts the conductive plate 121, completing the initial fixation of the terminal 5. The operation is simple and quick, and it is convenient to fix the terminal 5. At the same time, depending on the stability of the usage scenario, it is possible to choose whether to rotate the rotating bolt 31 to drive the fixing plate 3 to move down in the sliding groove 13, clamp the fixing spring 2, strengthen the terminal 5, prevent the terminal 5 from loosening and falling off in the vibration environment, improve stability, and increase the scope of application.

[0027] Furthermore, by engaging the pressure plate 21 with the conductive plate 121, different specifications of the same type of terminal block 5 can be used. At the same time, the contact area between the terminal block 5 and the conductive plate 121 can be increased, reducing the probability of poor contact and improving connection reliability.

[0028] Please see Figures 3-6 A pressure block 41 is movably installed below the clamping bolt 4 via a rotating shaft. The clamping bolt 4 is installed inside the guide post 18, and the clamping bolt 4 is threadedly connected to the threaded hole 181. The pressure block 41 is slidably installed inside the moving hole 183, and the lower end of the pressure block 41 is in contact with one end above the fixed spring 2. By rotating the clamping bolt 4, the fixed spring 2 is deformed, and the elastic force is changed.

[0029] Specifically, when repeated plugging and unplugging of the terminal block 5 causes metal fatigue of the pressure plate 21 and loosening, the pressure block 41 is moved down by rotating the clamping bolt 4, pressing the upper end of the fixing spring 2, causing the fixing spring 2 to undergo elastic deformation, enhancing the elastic force, thereby increasing the contact pressure, improving the transmission stability, and extending the service life of the device.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coupler structure for a terminal block, comprising a plastic housing (1), characterized in that: A fixing spring (2) is installed at one end of the interior of the plastic shell (1), a fixing plate (3) is slidably installed through the lower part of the interior of the plastic shell (1), a clamping bolt (4) is threadedly connected to the upper part of the interior of the plastic shell (1), and a terminal block (5) is inserted into one end of the plastic shell (1). A pressure plate (21) is fixedly installed at the lower end of the fixed spring (2), and the pressure plate (21) is arranged in an inverted U-shape.

2. The coupler structure for a terminal block according to claim 1, characterized in that: The plastic shell (1) has an internal slot (11). Multiple sets of fixing slots (12) are provided at the lower end of the slot (11). Sliding slots (13) are provided at the lower ends of the fixing slots (12). Sliding holes (131) are provided through both sides of the lower end of the slot (11). A fixing hole (14) is provided through below the center of the sliding slot (13). An annular groove (141) is provided around the outer periphery of the middle end of the fixing hole (14). A rotating hole (142) is provided through below the fixing hole (14). The slot (11) has a... A fixing block (15) is fixedly installed on the inner side of the end. A support wheel (151) is movably installed on the inner side of the fixing block (15) via a rotating shaft. A fixing frame (16) is fixedly installed on one end of the upper inner side of the empty groove (11). Three fixing rings (161) are installed on the inner side of the fixing frame (16) via a rotating shaft. A switch (17) is provided through one end of the plastic shell (1). An insertion hole (19) is also provided through the same end of the plastic shell (1). A guide post (18) is fixedly installed in the middle of the upper part of the plastic shell (1).

3. The coupler structure for a terminal block according to claim 2, characterized in that: A conductive plate (121) is fixedly installed inside the fixing groove (12), and the width of the two sides of the conductive plate (121) is slightly smaller than that of the fixing groove (12).

4. The coupler structure for a terminal block according to claim 2, characterized in that: The switch (17) includes a button (174) and a mounting hole (172) that passes through the inside of the button (174). A spring (173) is fixedly installed at one end of the mounting hole (172), and a limit plate (171) is fixedly connected to the other end of the spring (173).

5. The coupler structure for a terminal block according to claim 2, characterized in that: The upper end of the guide post (18) is provided with a protective hole (182), the middle part of the guide post (18) is provided with a threaded hole (181), and the lower end of the guide post (18) is provided with a moving hole (183).

6. The coupler structure for a terminal block according to claim 1, characterized in that: A rotating bolt (31) is threadedly connected to the center of the fixing plate (3).

7. The coupler structure for a terminal block according to claim 1, characterized in that: A pressure block (41) is movably mounted below the clamping bolt (4) via a rotating shaft.

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