U-shaped through type wiring terminal structure for distribution box
By designing the fixing and connecting components of the U-shaped terminal block structure, the problem of unstable wiring is solved, and a firm connection of wires and a stable connection of multiple sets of terminals are achieved, which is suitable for complex wiring in distribution boxes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ANTONG ELEC & TECH
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-01
AI Technical Summary
The U-shaped through-type terminal blocks used in distribution boxes have the problem of loose wiring and easy wire detachment.
A U-shaped terminal block structure was designed, comprising a fixing component and a connecting component. The combination of a pull rod, pressure plate, handle, limit rod, spring, limit block and threaded post achieves initial and secondary fixing of the wires. The combination of a locking block, round rod, connecting block and screw ensures that multiple sets of terminal blocks are firmly connected.
It effectively prevents wires from coming loose during connection, ensures a secure connection of multiple sets of terminals, and is suitable for complex wiring needs.
Smart Images

Figure CN224191343U_ABST
Abstract
Description
A U-shaped through-type terminal block structure for a distribution box Technical Field
[0001] This utility model relates to the field of terminal block technology, specifically a U-shaped through-type terminal block structure for a distribution box. Background Technology
[0002] Terminal blocks are accessories used to achieve electrical connections, and in industry, they fall under the category of connectors. They are metal pieces encased in insulating plastic, with holes at both ends for inserting wires, and screws for tightening or loosening. This facilitates wire connection and disconnection, avoiding the hassle of soldering or winding wires, and is suitable for interconnecting large numbers of wires. They are widely used in power, electronics, and other fields, ensuring reliable contact and sufficient current flow.
[0003] A U-shaped through-type terminal block structure for distribution boxes has terminals that are interconnected from one end to the other, allowing multiple wires to be connected and transitioned inside the terminal block. This facilitates electrical connections between different lines and can meet the complex wiring requirements within the distribution box. However, terminal blocks often suffer from loose connections and wires that are prone to coming loose during connection.
[0004] In view of this, we propose a U-shaped through-type terminal block structure for distribution boxes. Summary of the Invention
[0005] The purpose of this utility model is to provide a U-shaped through-type terminal block structure for distribution boxes to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A U-shaped through-type terminal block structure for a distribution box includes a U-shaped connector, the top of which has a threaded opening, and a threaded post is threadedly connected inside the threaded opening. A fixing component is provided on the U-shaped connector, the fixing component including:
[0008] A rectangular frame is fixedly installed on the top side wall of the U-shaped connecting block. A tie rod is slidably installed in the center of the rectangular frame, the tie rod passes through the interior of the rectangular frame, and a pressure plate is fixedly installed at one end of the tie rod.
[0009] A handle is fixedly installed at the other end of the pull rod, a limit rod is fixedly installed in the middle of the pull rod, and a spring is fixedly installed on the lower surface of the top of the rectangular frame. The spring is sleeved on the outside of the pull rod, and the bottom of the spring slides against the top of the limit rod.
[0010] A limiting block is fixedly installed on the inner side wall of the rectangular frame, and a limiting groove is formed on the limiting block.
[0011] In a further embodiment, two sets of threaded openings and threaded posts are provided, and the two sets of threaded openings and threaded posts are mirror images of the two ends of the U-shaped connector with the vertical center line of the U-shaped connector as the mirror axis.
[0012] In a further embodiment, the rectangular frame, pull rod, pressure plate, handle, limit rod, spring, limit block, and limit groove are provided in two sets, thereby making the wiring more secure.
[0013] In a further embodiment, the pressure plate is located inside the U-shaped connector.
[0014] In a further embodiment, the U-shaped connector is provided with a connecting component, the connecting component including a locking block, a locking block is fixedly installed at one end of the side wall of the U-shaped connector, a round rod is fixedly installed on the upper surface of the bottom end of the locking block, a connecting block is fixedly installed at the other end of the side wall of the U-shaped connector, a screw is threadedly connected inside the connecting block, and a connecting groove is opened at the bottom of the connecting block.
[0015] In a further embodiment, the round rod and the connecting groove are identical in shape and size.
[0016] In a further embodiment, the round rod and the connecting groove are provided in two sets, thereby making the connection of the wiring terminals more secure.
[0017] Compared with the prior art, this utility model provides a U-shaped through-type terminal block structure for distribution boxes, which has the following advantages:
[0018] 1. The U-shaped through-type terminal block structure used in this distribution box is equipped with a fixing component to prevent wires from falling off during connection. When it is necessary to fix the connected wires, pulling the handle drives the pull rod, which, together with the pressure plate, handle, limit rod, spring, limit block, and limit groove, limits the pull rod, allowing the pressure plate to fix the wires. In addition, the threaded cylinder and threaded post on the U-shaped terminal block further fix the wires, making the wire connection more secure and effectively preventing the wires from falling off during connection.
[0019] 2. The U-shaped through-type terminal block structure used in this distribution box is equipped with a connecting component to better connect multiple sets of terminals together. When multiple sets of terminals need to be connected, the component works with a locking block, a round rod, a connecting block, a screw, and a connecting groove. The round rod is inserted into the connecting groove and then the screw is tightened, which makes the connection between multiple sets of terminals more secure. Attached Figure Description
[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 is a schematic diagram of the overall structure of this utility model from another perspective;
[0022] Figure 3 is a schematic diagram of part of the structure of this utility model;
[0023] Figure 4 is a schematic diagram of the fixing component structure of this utility model.
[0024] Explanation of icon numbers:
[0025] 1. U-shaped connector; 2. Threaded opening; 3. Threaded post;
[0026] 4. Fixing components; 41. Rectangular frame; 42. Tie rod; 43. Pressure plate; 44. Handle; 45. Limiting rod; 46. Spring; 47. Limiting block; 48. Limiting groove;
[0027] 5. Connecting component; 51. Locking block; 52. Round rod; 53. Connecting block; 54. Screw; 55. Connecting groove. Detailed Implementation
[0028] 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.
[0029] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.
[0030] Please refer to Figures 1-4. This utility model provides a technical solution:
[0031] A U-shaped through-type terminal block structure for a distribution box includes a U-shaped connector 1, a threaded opening 2 on the top of the U-shaped connector 1, and a threaded post 3 threadedly connected inside the threaded opening 2.
[0032] In one embodiment of this utility model, a fixing component 4 is provided on the U-shaped connector 1. The fixing component 4 includes a rectangular frame 41. The rectangular frame 41 is fixedly installed on the top side wall of the U-shaped connector 1. A pull rod 42 is slidably installed in the center of the rectangular frame 41, and the pull rod 42 passes through the interior of the rectangular frame 41. A pressure plate 43 is fixedly installed at one end of the pull rod 42, and a handle 44 is fixedly installed at the other end of the pull rod 42. A limit rod 45 is fixedly installed in the middle of the pull rod 42. A spring 46 is fixedly installed on the lower surface of the top of the rectangular frame 41. Spring 46 is sleeved on the outside of pull rod 42. Limit block 47 is fixedly installed on the inner side wall of rectangular frame 41. Limit block 47 has limit groove 48. There are two sets of threaded port 2 and threaded post 3. The two sets of threaded port 2 and threaded post 3 are mirrored at both ends of U-shaped connector 1 with the vertical center line of U-shaped connector 1 as the mirror axis. There are two sets of rectangular frame 41, pull rod 42, pressure plate 43, handle 44, limit rod 45, spring 46, limit block 47 and limit groove 48. Pressure plate 43 is located inside U-shaped connector 1.
[0033] In this embodiment, when it is necessary to connect and fix the wires, the operator holds the handle 44 and pulls it away from the U-shaped connector 1. The movement of the handle 44 will cause the pull rod 42 to slide along its central axis inside the rectangular frame 41. As the pull rod 42 moves, the pressure plate 43 will also move with the pull rod 42, gradually moving away from the U-shaped connector 1, thereby freeing up enough space inside the U-shaped connector 1 for the operator to place the wires to be connected in a suitable position inside the U-shaped connector 1. At the same time, the limiting rod 45 moves with the pull rod 42 to compress the spring 46. The spring 46 generates elastic potential energy. When the horizontal height of the limiting rod 45 is higher than the limiting groove 48, the operator rotates the handle 44, causing the limiting rod 45 to rotate 90 degrees, and the limiting rod 45 enters the limiting groove 48. 6. Releasing elastic potential energy fixes the limiting rod 45 inside the limiting block 47. At this time, the operator places the wire in the U-shaped connector 1. After the wire enters the arc-shaped outer wall of the pressure plate 43, the operator pulls and rotates the handle 44 again, causing the limiting rod 45 to leave the limiting groove 48. The spring 46 releases elastic potential energy, causing the limiting rod 45 to adhere to the bottom inner wall of the rectangular frame 41. The pressure plate 43 presses on the wire, applying a certain pressure to the wire and completing the initial fixation of the wire. After the pressure plate 43 initially fixes the wire, the operator can rotate the threaded column 3 to move it inward along the thread direction of the threaded opening 2. As the threaded column 3 rotates, it gradually extends into the U-shaped connector 1, further squeezing and fixing the wire, thereby making the wire connection more secure and effectively preventing the wire from falling off during connection.
[0034] In one embodiment of this utility model, a connecting component 5 is provided on the U-shaped connector 1. The connecting component 5 includes a locking block 51. The locking block 51 is fixedly installed on one end of the side wall of the U-shaped connector 1. A round rod 52 is fixedly installed on the upper surface of the bottom end of the locking block 51. A connecting block 53 is fixedly installed on the other end of the side wall of the U-shaped connector 1. A screw 54 is threadedly connected inside the connecting block 53. A connecting groove 55 is opened at the bottom of the connecting block 53. The round rod 52 and the connecting groove 55 are the same in shape and size. Two sets of round rods 52 and connecting grooves 55 are provided.
[0035] In this embodiment, when multiple sets of U-shaped connectors 1 need to be connected, the U-shaped connectors 1 are arranged according to the connection requirements. During the connection operation, the two sets of round rods 52 on a single set of U-shaped connectors 1 are aligned and inserted into the connecting grooves 55 on another set of U-shaped connectors 1, ensuring that the connected U-shaped connectors 1 remain aligned in both the horizontal and vertical directions. This reduces misalignment and shaking during the connection process, achieving initial fixation and positioning of the U-shaped connectors 1. Then, the screw 54 is rotated, and the screw 54 will move axially along the thread direction. As the screw 54 rotates continuously, the connection is further strengthened. It gradually moves downward and presses the round rod 52 inserted into the connecting groove 55. By repeating the above steps of inserting the round rod 52 into the connecting groove 55 and tightening the screw 54, multiple sets of U-shaped connectors 1 are connected in sequence, thereby achieving a stable connection of multiple sets of U-shaped connectors 1. When it is necessary to disassemble the terminal block, the screw 54 is rotated in the opposite direction to move it upward along the thread direction, releasing the pressure on the round rod 52. At this time, the friction between the round rod 52 and the connecting groove 55 is reduced, and the round rod 52 is pulled out from the connecting groove 55, completing the separation operation of the U-shaped connector 1.
[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A U-shaped through-type terminal block structure for a distribution box, comprising a U-shaped connector (1), wherein the top of the U-shaped connector (1) is provided with a threaded opening (2), and a threaded post (3) is threadedly connected inside the threaded opening (2), characterized in that: A fixing component (4) is provided on the U-shaped connector (1). The fixing component (4) includes: a rectangular frame (41), which is fixedly installed on the top side wall of the U-shaped connector (1). A pull rod (42) is slidably installed in the center of the rectangular frame (41). The pull rod (42) passes through the interior of the rectangular frame (41). A pressure plate (43) is fixedly installed at one end of the pull rod (42); and a handle (44), which is fixedly installed at the other end of the pull rod (42). The pull rod (42) has a handle (44), a limiting rod (45) is fixedly installed in the middle of the pull rod (42), a spring (46) is fixedly installed on the lower top surface of the rectangular frame (41), the spring (46) is sleeved on the outside of the pull rod (42), and the bottom of the spring (46) slides against the top of the limiting rod (45); a limiting block (47) is fixedly installed on the inner side wall of the rectangular frame (41), and a limiting groove (48) is opened on the limiting block (47).
2. The U-shaped through-type terminal block structure for a distribution box according to claim 1, characterized in that: The threaded opening (2) and threaded post (3) are provided in two sets, and the two sets of threaded opening (2) and threaded post (3) are mirrored at both ends of the U-shaped connector (1) with the vertical center line of the U-shaped connector (1) as the mirror axis.
3. The U-shaped through-type terminal block structure for a distribution box according to claim 1, characterized in that: The rectangular frame (41), pull rod (42), pressure plate (43), handle (44), limit rod (45), spring (46), limit block (47) and limit groove (48) are provided in two sets.
4. The U-shaped through-type terminal block structure for a distribution box according to claim 3, characterized in that: The pressure plate (43) is located inside the U-shaped connector (1).
5. The U-shaped through-type terminal block structure for a distribution box according to claim 1, characterized in that: The U-shaped connector (1) is provided with a connecting component (5), the connecting component (5) includes a locking block (51), the locking block (51) is fixedly installed at one end of the side wall of the U-shaped connector (1), a round rod (52) is fixedly installed on the upper surface of the bottom end of the locking block (51), a connecting block (53) is fixedly installed at the other end of the side wall of the U-shaped connector (1), a screw (54) is threaded inside the connecting block (53), and a connecting groove (55) is opened at the bottom of the connecting block (53).
6. The U-shaped through-type terminal block structure for a distribution box according to claim 5, characterized in that: The round rod (52) and the connecting groove (55) are identical in shape and size.
7. The U-shaped through-type terminal block structure for a distribution box according to claim 6, characterized in that: The round rod (52) and the connecting groove (55) are provided in two sets.