A quick wiring terminal of an intelligent control device
The lever-type clamping mechanism enables rapid clamping and loosening of multiple circuits, solving the problem of cumbersome operation of traditional terminal blocks and improving the installation efficiency and connection reliability of intelligent control equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 长城电气股份有限公司
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional terminal blocks are cumbersome to operate, inefficient, require external tools, are difficult to clamp and release quickly for multiple lines, and are inconvenient to disassemble.
The lever-type pressing clamping mechanism uses a drive shaft, connecting rod and clamping frame to simultaneously clamp and fix multiple wires, and uses spring and limit frame to lock and ensure connection reliability.
It enables rapid and synchronous clamping and releasing of multiple lines, improving ease of operation and work efficiency, ensuring the reliability and stability of the connection, and eliminating the need for external tools.
Smart Images

Figure CN224554726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of terminal block technology, specifically a quick-connect terminal block for intelligent control equipment. Background Technology
[0002] Terminal blocks, as an important component in electrical connections, are widely used in various intelligent control devices. The reliability and ease of operation of their connections directly affect the installation efficiency and maintenance costs of the equipment. Traditional terminal blocks mostly use bolt fastening methods, such as the "multi-functional terminal block with anti-loosening function" disclosed in the prior art (authorization announcement number CN217036042U). While it uses screws to tighten and fix the wires, it still has the following shortcomings: bolt fastening requires tightening each screw individually, which is cumbersome and inefficient, especially in multi-wire wiring situations. Moreover, disassembly also requires loosening each screw individually, making it inconvenient to quickly replace or adjust the wires. In addition, the operation requires the use of external tools such as screwdrivers, increasing the complexity and time cost of operation. Utility Model Content
[0003] The purpose of this invention is to provide a quick-connect terminal for intelligent control devices to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect terminal for an intelligent control device, comprising a base, with locking blocks fixedly connected to both sides of the base, and a mounting shell fixedly connected to the top of the base. The mounting shell has multiple sets of interfaces inside, and a locking mechanism is installed on the mounting shell. The locking mechanism includes a horizontal plate, a vertical rod, and a guide rod. The horizontal plate has vertical rods fixedly connected to both ends, and multiple sets of guide rods are fixedly connected at equal intervals to the bottom of the horizontal plate. Clamping plates are fixedly connected to the bottom end of the guide rods and inside the interfaces, and a locking device is connected to the vertical rod.
[0005] As a preferred embodiment of this utility model, the locking device includes a mounting frame, a fastening frame, and a bracket. The mounting frame is fixedly connected to the outer side wall of the base. The fastening frame is fixedly connected to the mounting frame. The bracket is movably connected to the fastening frame. A drive shaft passes through the inside of the bracket. A connecting rod is fixedly connected to the drive shaft. A locking frame is fixedly connected to the outer side wall of the vertical rod. A handle is fixedly connected to one end of the bracket. A telescopic rod is slidably connected to the bottom of the handle. A spring is fixedly connected inside the handle. A fixing block is fixedly connected to the bottom end of the telescopic rod. An L-shaped limiting frame is fixedly connected to the fixing block.
[0006] As a preferred embodiment of this utility model, one end of the spring is fixedly connected to the telescopic rod, and the other end of the spring is fixedly connected to the inside of the handle.
[0007] As a preferred embodiment of this utility model, the limiting frame and the locking block are adapted to each other, and the limiting frame is engaged inside the locking block.
[0008] As a preferred technical solution of this utility model, the bracket and the transmission shaft are rotatably connected by bearings, and the inside of the snap-fit bracket is provided with a snap-fit groove, and the connecting rod is fastened in the snap-fit groove.
[0009] As a preferred embodiment of this utility model, the guide rod passes through the top of the mounting shell and extends into the interior of the interface. The guide rod and the mounting shell are slidably connected, and the clamping plate has a semi-circular structure.
[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a latching mechanism with a lever-type pressing operation. During wiring, simply insert the wire into the interface and press the handle. This, through the cooperation of the drive shaft, connecting rod, and latching frame, simultaneously moves the horizontal plate, vertical rod, and multiple sets of guide rods downwards, thereby driving the clamping plates within all interfaces to move synchronously. This clamps and secures multiple wires at once, effectively preventing wire loosening. Compared to traditional bolt-fastening methods, which suffer from cumbersome operation, low efficiency, reliance on external tools, and inconvenient disassembly, this invention offers the following significant advantages: 1. It enables rapid and synchronous clamping and loosening of multiple lines, significantly improving wiring and disconnection efficiency, and is especially suitable for intelligent control equipment with multiple wiring lines.
[0011] 2. No external tools such as screwdrivers are needed during operation. All operations can be completed by manually pressing and pulling, which greatly improves the convenience of operation and work efficiency.
[0012] 3. Through the cooperation of the spring, telescopic rod, and limit bracket in the locking device with the locking block, the handle can be locked after pressing to prevent accidental release and ensure reliable connection. At the same time, the unlocking operation is simple and quick.
[0013] 4. The structure is reasonably designed. The clamp adopts a semi-circular structure, which has a large contact area with the wire and uniform pressure, further enhancing the anti-loosening performance and the stability of the electrical connection. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a quick-connect terminal block for an intelligent control device according to this utility model. Figure 2 This is a schematic diagram of the snap-fit mechanism in the quick-connect terminal of an intelligent control device according to the present invention; Figure 3 This is a schematic diagram of the locking mechanism in a quick-connect terminal block of an intelligent control device according to this utility model; Figure 4 This is a cross-sectional view of the handle in the quick-connect terminal of an intelligent control device according to this utility model.
[0015] In the diagram: 1. Base; 11. Locking block; 2. Mounting shell; 21. Interface; 3. Locking mechanism; 31. Horizontal plate; 32. Vertical rod; 33. Guide rod; 34. Clamping plate; 35. Locking device; 351. Mounting bracket; 352. Fastening bracket; 353. Bracket; 354. Drive shaft; 355. Connecting rod; 356. Locking bracket; 357. Handle; 3571. Spring; 358. Telescopic rod; 359. Fixing block; 3591. Limiting bracket. Detailed Implementation
[0016] 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.
[0017] Please see Figures 1 to 4 This utility model provides a quick-connect terminal for an intelligent control device, including a base 1, with locking blocks 11 fixedly connected to both sides of the base 1, and a mounting shell 2 fixedly connected to the top of the base 1. The mounting shell 2 has multiple sets of interfaces 21 inside, and a locking mechanism 3 is installed on the mounting shell 2. The locking mechanism 3 includes a horizontal plate 31, a vertical rod 32 and a guide rod 33. The vertical rod 32 is fixedly connected to both ends of the horizontal plate 31, and multiple sets of guide rods 33 are fixedly connected at equal intervals to the bottom of the horizontal plate 31. Clamping plates 34 are fixedly connected to the bottom end of the guide rods 33 and inside the interfaces 21. A locking device 35 is connected to the vertical rod 32.
[0018] Furthermore, the locking device 35 includes a mounting frame 351, a fastening frame 352, and a bracket 353. The mounting frame 351 is fixed to the outer side wall of the base 1. The fastening frame 352 is fixed to the mounting frame 351. The bracket 353 is movably connected to the fastening frame 352. A drive shaft 354 passes through the inside of the bracket 353. A connecting rod 355 is fixed to the drive shaft 354. A locking frame 356 is fixed to the outer side wall of the vertical rod 32. A handle 357 is fixed to one end of the bracket 353. A telescopic rod 358 is slidably connected to the bottom of the handle 357. A spring 3571 is fixed to the inside of the handle 357. A fixing block 359 is fixed to the bottom end of the telescopic rod 358. An L-shaped limiting frame 3591 is fixed to the fixing block 359.
[0019] Furthermore, one end of the spring 3571 is fixed to the telescopic rod 358, and the other end of the spring 3571 is fixed inside the handle 357. This arrangement ensures that the spring 3571 always provides an upward restoring force to the telescopic rod 358. When unlocking is required, this force assists the telescopic rod 358 in resetting. In the locked state, the force helps maintain the engagement tightness between the limit bracket 3591 and the locking block 11, enhancing the locking reliability.
[0020] Furthermore, the limiting bracket 3591 and the locking block 11 are compatible. The limiting bracket 3591 is locked inside the locking block 11. The L-shaped structure of the limiting bracket 3591 can be firmly locked into the locking block 11 to form a mechanical interlock. This effectively prevents the handle 357 from being accidentally lifted under vibration or external force interference, thereby avoiding the loosening of the clamp 34 and ensuring the long-term reliability of the wire connection.
[0021] Furthermore, the bracket 353 and the drive shaft 354 are rotatably connected by bearings. The snap-fit bracket 356 has a snap-fit groove inside, and the connecting rod 355 is snapped into the snap-fit groove. The bearing connection ensures the flexibility and low wear of the bracket 353 rotation. The snap-fit connection between the connecting rod 355 and the snap-fit groove on the snap-fit bracket 356 effectively converts the rotational motion into the linear motion of the vertical rod 32, ensuring the accuracy and efficiency of force transmission.
[0022] Furthermore, the guide rod 33 passes through the top of the mounting shell 2 and extends into the interior of the interface 21. The guide rod 33 and the mounting shell 2 are slidably connected. The clamping plate 34 has a semi-circular structure. The sliding connection between the guide rod 33 and the mounting shell 2 provides precise vertical guidance, ensuring that its movement trajectory is stable and will not deviate. The design of extending into the interior of the interface 21 allows the force to be applied directly to the clamping point. The semi-circular structure of the clamping plate 34 increases the contact area with the circular wire, making the clamping force distribution more uniform. This can effectively prevent wire damage and provide a more secure clamping effect, avoiding wire loosening.
[0023] Working principle: Insert the wires to be connected into the corresponding interfaces 21, then place the connecting rod 355 into the slot in the snap-fit bracket 356, and then press down on the handle 357. At this time, the handle 357 drives the bracket 353 to rotate around the hinge point between the fastening bracket 352 and the bracket 353. The rotation of the bracket 353 drives the connecting rod 355 to move through its internal transmission shaft 354. Since the connecting rod 355 is engaged in the slot of the snap-fit bracket 356, the movement of the connecting rod 355... The clamping bracket 356 and the vertical rod 32 fixed to it move downwards. The vertical rod 32 drives the horizontal plate 31 to move downwards simultaneously. The horizontal plate 31 then pushes all the equidistantly fixed guide rods 33 to move vertically downwards along the mounting shell 2. The clamping plates 34 at the bottom of the guide rods 33 move downwards accordingly, cooperating with the existing clamping plates 34 in the interface 21 to clamp the wires together. Since all the guide rods 33 are linked through the horizontal plate 31, multiple wires can be clamped simultaneously and quickly. After clamping is completed, the telescopic mechanism is pulled downwards. When the lever 358 is released, the spring 3571 is in a stretched state, which in turn drives the fixing block 359 and the limiting bracket 3591 to move downward, so that the L-shaped limiting bracket 3591 is locked into the locking block 11 on the side of the base 1. After the telescopic lever 358 is released, the rebound force of the spring 3571 makes the telescopic lever 358 tend to return to its original position, but at this time the limiting bracket 3591 is restricted by the locking block 11, thereby locking the entire handle 357 in the pressed position, preventing it from rebounding and causing the clamp 34 to loosen. To ensure reliable connection, when it is necessary to disassemble the wire, pull the telescopic rod 358 down again to disengage the limit bracket 3591 from the locking block 11. Then, the elastic force of the spring 3571 will push the telescopic rod 358 back to its original position. Then, hold the handle 357 and pull it up until the connecting rod 355 disengages from the slot. Next, hold the horizontal plate 31 and pull it up to move the guide rod 33 and the clamping plate 34 upward, so that the clamping plate 34 releases the wire. The wire can then be removed from the interface 21, completing the quick disassembly.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-connect terminal block for an intelligent control device, comprising a base (1), characterized in that, Both sides of the base (1) are fixed with locking blocks (11), and the top of the base (1) is fixed with a mounting shell (2). Multiple sets of interfaces (21) are opened inside the mounting shell (2), and a locking mechanism (3) is installed on the mounting shell (2). The locking mechanism (3) includes a horizontal plate (31), a vertical rod (32) and a guide rod (33). Both ends of the horizontal plate (31) are fixed with vertical rods (32), and multiple sets of guide rods (33) are fixed at equal intervals at the bottom of the horizontal plate (31). The bottom end of the guide rod (33) and the inside of the interface (21) are fixed with clamps (34), and a locking device (35) is connected to the vertical rod (32).
2. The quick-connect terminal block for an intelligent control device according to claim 1, characterized in that, The locking device (35) includes a mounting frame (351), a fastening frame (352), and a bracket (353). The mounting frame (351) is fixed to the outer wall of the base (1). The fastening frame (352) is fixed to the mounting frame (351). The bracket (353) is movably connected to the fastening frame (352). A drive shaft (354) passes through the inside of the bracket (353). A connecting rod (355) is fixed to the drive shaft (354). A locking frame (356) is fixed to the outer wall of the vertical rod (32). A handle (357) is fixed to one end of the bracket (353). A telescopic rod (358) is slidably connected to the bottom of the handle (357). A spring (3571) is fixed to the inside of the handle (357). A fixing block (359) is fixed to the bottom of the telescopic rod (358). An L-shaped limiting frame (3591) is fixed to the fixing block (359).
3. The quick-connect terminal block for an intelligent control device according to claim 2, characterized in that, One end of the spring (3571) is fixed to the telescopic rod (358), and the other end of the spring (3571) is fixed inside the handle (357).
4. The quick-connect terminal block for an intelligent control device according to claim 3, characterized in that, The limiting frame (3591) and the locking block (11) are adapted to each other, and the limiting frame (3591) is engaged inside the locking block (11).
5. The quick-connect terminal block for an intelligent control device according to claim 4, characterized in that, The bracket (353) and the drive shaft (354) are rotatably connected by bearings. The inside of the snap-fit bracket (356) is provided with a snap-fit groove, and the connecting rod (355) is fastened in the snap-fit groove.
6. The quick-connect terminal block for an intelligent control device according to claim 5, characterized in that, The guide rod (33) passes through the top of the mounting shell (2) and extends into the interior of the interface (21). The guide rod (33) and the mounting shell (2) are slidably connected. The clamping plate (34) has a semi-circular structure.