Wire terminal flip cover structure

By introducing a fixing frame, protection mechanism, and drive mechanism into the terminal block flip cover structure, and utilizing the snap-lock and observation window feedback, the problems of easy opening and unreliable locking of the flip cover are solved, thus achieving stable closing of the flip cover and accurate operation.

CN224384616UActive Publication Date: 2026-06-19BEIJING ACCUENERGY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING ACCUENERGY TECH CO LTD
Filing Date
2025-06-28
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing terminal block flip-top structure is prone to accidental opening due to vibration or external impact. When closed, the locking is not secure, making it difficult for users to visually determine whether it is fully closed, thus affecting the normal use of the protective function.

Method used

A terminal block flip cover structure was designed, including a fixing frame, a protection mechanism, and a drive mechanism. The flip cover assembly is locked by a buckle and a slot, and is equipped with an observation window and a display screen to provide clear operation feedback. The circuit board controls the drive operation to ensure that the flip cover closes securely.

Benefits of technology

It improves the locking reliability of the flip cover, provides clear operational feedback, reduces disassembly steps during maintenance, and enhances the protective effect and operational accuracy of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of electrical connection device technology, and discloses a terminal block flip-top structure, including a fixing frame. A protective mechanism is fixedly connected to the outer wall of the fixing frame around its perimeter, protecting internal components. A driving mechanism is fixedly connected to the bottom of the inner wall of the fixing frame, providing convenient operation. The protective mechanism includes a protective shell, fixedly connected to the top of the outer wall of the fixing frame. Multiple fixing blocks are fixedly connected to the left and right sides of the bottom of the protective shell, and a base is fixedly connected to the bottom of the outer wall of each fixing block. In this utility model, during operation, the operator applies force to rotate the cover plate around the pivot to open the flip-top. The latches separate from the slots, allowing the cover plate to be freely disassembled for easy inspection of internal components. The protective cover is securely locked when closed, providing clear tactile feedback during operation. Maintenance does not require complete disassembly of the protective cover.
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Description

Technical Field

[0001] This utility model relates to the field of electrical connection device technology, and in particular to a terminal block flip-top structure. Background Technology

[0002] The flip-top structure of a terminal block is a mechanical design component used to protect internal electrical connections and improve operational convenience and safety. It is commonly found in terminal block modules in various electrical equipment, circuit boards, and distribution boxes. It is a key protective component in electrical connection systems that combines functionality and safety. While protecting internal circuits, it provides users with a convenient operating interface and is widely used in electrical scenarios that require both protection and maintenance.

[0003] A search revealed Chinese Patent Publication No. CN111697381A, which discloses a flip-type electrical terminal block with a protective cover, comprising a terminal block and a protective cover. The terminal block is a rectangular terminal block with a certain height, a recessed opening at one end of its width, and symmetrically arranged pin insertion holes on both sides of the other end. The protective cover is a transparent plastic protective cover that fits the rectangular terminal block. A protruding locking buckle is located at the center of one end of the plastic protective cover, and symmetrically arranged pins on both sides of the other end. The pins of the protective cover are inserted into the pin insertion holes of the terminal block, so that when the locking buckle end of the protective cover is flipped up, the pin insertion holes rotate around the pins. This invention provides a flip-type electrical terminal block with a protective cover. With its simple structure, convenient operation, and easy switching, the terminal block wiring nodes in the cover structure are kept under constant protection, providing significant advantages such as waterproofing, dustproofing, and prevention of electric shock hazards. During maintenance, the cover can be completely removed without losing small fasteners, reducing maintenance costs. The positioning mechanism prevents accidental activation. However, existing terminal cover structures are prone to accidental opening due to vibration or external impact, leading to protection failure. The terminal cover structure also suffers from unreliable locking when closed; a lack of clear tactile feedback during operation makes it difficult for users to visually determine whether the cover is fully closed or locked; and the need for complete disassembly during maintenance, which not only increases operational complexity but also leads to cover loss or damage, affecting the normal use of subsequent protective functions. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a terminal block flip cover structure, which aims to improve the problems in the prior art where the cover is accidentally opened by external force collisions, the locking is not reliable when closed, and users have difficulty intuitively judging whether the protective cover is fully closed and locked, thus affecting the normal use of subsequent protective functions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a terminal block flip-cover structure, including a fixing frame, a protective mechanism fixedly connected to the outer wall of the fixing frame, the protective mechanism being used to protect internal components, a driving mechanism fixedly connected to the bottom of the inner wall of the fixing frame, the driving mechanism being used to provide convenient operation; the protective mechanism includes a protective shell, the protective shell being fixedly connected to the top of the outer wall of the fixing frame, multiple fixing blocks being fixedly connected to the bottom left and right sides of the protective shell, a base being fixedly connected to the bottom of the outer wall of the fixing blocks, fixing strips being fixedly connected to the inner walls of the protective shell and the base, and flip-cover assemblies being rotatably connected to the front and rear sides of the inner wall of the protective shell.

[0006] Through the above technical solution: in the terminal block flip-cover structure, each component works together to achieve protection and operation functions. The mounting frame supports the core components, the drive mechanism at the bottom of its inner wall assists in operation, and the protective mechanism around the outer wall is responsible for protection. The protective shell is connected to the base through the fixing block and is fixed to the top of the mounting frame to form a basic support structure. It can limit and fix the internal equipment or components. The flip-cover components on the front and rear sides of the inner wall of the protective shell can be opened and closed by rotation, which is used for convenient installation, maintenance and access to the internal structure, and realizes the protection function of the internal components.

[0007] As a further description of the above technical solution:

[0008] The flip-top assembly includes two cover plates, which are rotatably connected to the front and rear sides of the inner wall of the protective shell. A buckle is provided on one side of the outer wall of the two cover plates. The left and right sides of the inner wall of the protective shell are fixedly connected to the slots, which engage with the cover plates. A fixing plate is fixedly connected to the top of the inner wall of the protective shell, and an observation window is fixedly connected to the front side of the outer wall of the fixing plate.

[0009] Through the above technical solution: In the flip-top assembly, two cover plates are rotatably connected to the front and rear sides of the inner wall of the protective shell, making the opening and closing operation convenient. The buckles of the cover plates engage with the slots of the inner wall of the protective shell to achieve a stable lock. The observation window on the front side of the fixed plate on the top of the inner wall of the protective shell facilitates observation of the internal situation when the shell is closed.

[0010] As a further description of the above technical solution:

[0011] The driving mechanism includes a circuit board, which is fixedly connected to the left and right sides of the outer wall of the fixed frame. A display screen is fixedly connected to the top of the outer wall of the circuit board. A data interface hole is opened on one side of the outer wall of the display screen. An insulating plate is fixedly connected to one side of the outer wall of the circuit board. A base plate is fixedly connected to the bottom adjacent side of the circuit board. A connecting component is fixedly connected to the top of the outer wall of the base plate.

[0012] The above technical solution involves a circuit board serving as the main control component, mounted on both sides of a mounting frame. This board connects electronic components, provides power and signal transmission to the display screen, and displays device information. Data ports are used for data interaction and program input. An insulating board isolates the circuit from the external structure to ensure safety, while the base plate supports the circuit board and connecting components.

[0013] As a further description of the above technical solution:

[0014] The connection assembly includes a power supply, which is fixedly connected to the middle of the top wall of the base plate. Multiple sockets are fixedly connected to the front and rear sides of the top of the base plate. The middle of the inner wall of the multiple sockets is provided with a socket hole, and a pressure plate is rotatably connected to the top of the outer wall of the socket hole.

[0015] The above technical solution provides power supply, connects external devices via sockets, secures interfaces with pressure plates, coordinates components on circuit boards, and enables data interaction via data ports, ensuring device operation, data and power transmission.

[0016] As a further description of the above technical solution:

[0017] A second fixing plate is fixedly connected to the bottom front side of the protective shell, and a spring strip is fixedly connected to the middle of the inner wall of the second fixing plate.

[0018] Through the above technical solution, the fixing plate 2 on the front bottom of the protective shell provides elastic support through the spring strip on the inner wall in the middle, so as to achieve quick fixing and locking.

[0019] As a further description of the above technical solution:

[0020] A data connector is installed on the rear side of the outer wall of the base, and a data cable is fixedly connected to the rear side of the outer wall of the data connector.

[0021] The above technical solution involves a data connector located on the rear side of the outer wall of the base, which transmits data via a data cable.

[0022] As a further description of the above technical solution:

[0023] The base has a sliding groove at the bottom of its outer wall, and connecting columns are fixedly connected to the four corners of the base's inner wall.

[0024] Through the above technical solution: the bottom slide can slide on the track, and the connecting posts at the four corners of its inner wall are used for fixed connection with the protective shell and other components.

[0025] As a further description of the above technical solution:

[0026] A movable plate is rotatably connected to the top rear side of the protective shell, and a movable groove is provided on one side of the outer wall of the movable plate.

[0027] The above technical solution involves a rotatable movable plate on the top rear side, equipped with a movable slot that enables opening and closing, allowing for quick fixing and connection of individual components.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, during operation, the operator applies force to rotate the cover plate around the pivot to open the flip cover. The buckle and the slot separate, and the cover plate can be freely disassembled for easy inspection of internal components. The drive mechanism synchronously assists the operation. After the operation is completed, the flip cover is locked to ensure the safety of the lead seal. The flip cover opening and closing states are all set by the positioning mechanism, which provides tactile feedback when opening and closing, improving the accuracy of operation. The fixing strip strengthens the connection and limits the components. The observation window facilitates daily inspection. The protective cover is securely locked when closed, improving the clear tactile feedback during operation. Maintenance does not require complete disassembly of the protective cover.

[0030] 2. In this utility model, the circuit board is fixed on both sides of the mounting frame and connects various electronic components. The display screen is powered by the circuit board and transmits signals, making it easy to observe the status of the display device. The data interface on its side enables data interaction. The insulating plate prevents short circuits. The base plate supports the assembly and is equipped with a power supply. The socket connects to external devices. The pressure plate on the top of the socket fixes the plug to prevent loosening. All components work together. The circuit board coordinates power supply, data transmission and device connection, drives the device to run, and improves work efficiency. Attached Figure Description

[0031] Figure 1 This is a perspective view of the terminal block flip-cover structure proposed in this utility model;

[0032] Figure 2 This is a front view of the terminal block flip-top structure proposed in this utility model;

[0033] Figure 3 This is a rear view of the terminal block flip-top structure proposed in this utility model.

[0034] Figure 4 This is a structural exploded view of the terminal block flip-cover structure proposed in this utility model;

[0035] Figure 5 This is a partial structural exploded view of the terminal block flip-cover structure proposed in this utility model;

[0036] Figure 6 This is a partial structural diagram of the terminal cover structure proposed in this utility model.

[0037] Legend:

[0038] 1. Fixing frame; 2. Protective mechanism; 201. Protective shell; 202. Fixing block; 203. Base; 204. Fixing strip; 205. Flip-top assembly; 2051. Cover plate; 2052. Buckle; 2053. Fixing plate one; 2054. Slot; 2055. Observation window; 3. Drive mechanism; 301. Circuit board; 302. Display screen; 303. Data interface; 304. Insulating plate; 305. Base plate; 306. Connecting assembly; 3061. Power supply; 3062. Socket; 3063. Socket; 3064. Pressure plate; 4. Movable groove; 5. Fixing plate two; 6. Spring strip; 7. Data connector; 8. Data cable; 9. Slide groove; 10. Connecting post; 11. Movable plate. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0040] Reference Figure 1 , Figure 4 and Figure 5 This utility model provides an embodiment of a terminal block flip-top structure, including a fixing frame 1. A protective mechanism 2 is fixedly connected to the outer wall of the fixing frame 1 around its perimeter. The protective mechanism 2 protects internal components. A driving mechanism 3 is fixedly connected to the bottom of the inner wall of the fixing frame 1, providing convenient operation. The protective mechanism 2 includes a protective shell 201, which is fixedly connected to the top of the outer wall of the fixing frame 1. Multiple fixing blocks 202 are fixedly connected to the left and right sides of the bottom of the protective shell 201. A base 203 is fixedly connected to the bottom of the outer wall of each fixing block 202. The inner walls of the protective shell 201 and the base 203 are connected... The protective shell 201 is fixedly connected to the four sides by fixing strips 204. The front and rear sides of the inner wall of the protective shell 201 are rotatably connected to the flip cover assembly 205. The flip cover assembly 205 includes two cover plates 2051, which are rotatably connected to the front and rear sides of the inner wall of the protective shell 201. A buckle 2052 is provided on one side of the outer wall of the two cover plates 2051. The left and right sides of the inner wall of the protective shell 201 are fixedly connected to the slots 2054, which engage with the cover plates 2051. The top of the inner wall of the protective shell 201 is fixedly connected to a fixing plate 2053, and the front side of the outer wall of the fixing plate 2053 is fixedly connected to an observation window 2055.

[0041] Specifically, the operator applies external force to open the flip-top assembly 205 of the terminal block. The cover plate 2051 rotates around the pivot, and the buckle 2052 separates from the slot 2054, facilitating the installation and maintenance of internal components. The drive mechanism 3 provides auxiliary positioning during operation. After completion, the cover plate 2051 rotates to close, and the buckle 2052 engages with the slot 2054 to ensure the flip-top is locked, preventing unauthorized operation and ensuring the safety of the electrical system. The flip-top assembly 205 is equipped with a positioning mechanism to provide tactile feedback and ensure that the flip-top closes correctly. All components of the protection mechanism 2 work together to protect the internal components from damage by dust and moisture, while fixing the components to prevent shaking. The fixing plate 2053 and the observation window 2055 allow the inspection of the internal component status without opening the flip-top.

[0042] Reference Figure 2 , Figure 3 and Figure 6 The drive mechanism 3 includes a circuit board 301, which is fixedly connected to the left and right sides of the outer wall of the fixed frame 1. A display screen 302 is fixedly connected to the top of the outer wall of the circuit board 301. A data interface hole 303 is opened on one side of the outer wall of the display screen 302. An insulating plate 304 is fixedly connected to one side of the outer wall of the circuit board 301. A base plate 305 is fixedly connected to the bottom adjacent side of the circuit board 301. A connecting component 306 is fixedly connected to the top of the outer wall of the base plate 305. The connecting component 306 includes a power supply 3061, which is fixedly connected to the middle of the top wall of the base plate 305. Multiple sockets 3062 are fixedly connected to the front and rear sides of the top of the base plate 305. A socket hole 3063 is opened in the middle of the inner wall of the multiple sockets 3062. A pressure plate 3064 is rotatably connected to the top of the outer wall of the socket hole 3063.

[0043] Specifically, circuit board 301 is the main control component, fixed on both sides of the mounting bracket 1, connecting electronic components. Display screen 302 is powered and transmits signals through circuit board 301, displaying device information. Data interface 303 is used for data interaction and program input. Insulating plate 304 isolates the circuit and external structure to ensure safety. Base plate 305 supports circuit board 301 and connecting component 306. Power supply 3061 provides power. Socket 3062 connects to external power cord or device plug. Pressure plate 3064 fixes the plug to prevent interface loosening. Circuit board 301 coordinates various components, realizes data interaction through data interface 303, is powered by power supply 3061, connects external devices through socket 3062, and pressure plate 3064 ensures interface stability, drives device operation, and completes data connection and power transmission.

[0044] Reference Figure 1 , Figure 2 and Figure 3A fixing plate 5 is fixedly connected to the bottom front side of the protective shell 201. A spring strip 6 is fixedly connected to the middle of the inner wall of the fixing plate 5. A data connector 7 is installed on the outer rear side of the base 203. A data cable 8 is fixedly connected to the outer rear side of the data connector 7. A sliding groove 9 is opened at the bottom of the outer wall of the base 203. Connecting posts 10 are fixedly connected at the four corners of the inner wall of the base 203. A movable plate 11 is rotatably connected to the top rear side of the protective shell 201. A movable groove 4 is opened on one side of the outer wall of the movable plate 11.

[0045] Specifically, the fixing plate 25 on the front bottom of the protective shell 201 is provided with elastic support by the spring strip 6 in the middle of the inner wall, which enables quick fixing and locking. The movable plate 11 on the rear top has a movable groove 4, which can realize the opening and closing function, and realize the quick fixing and connection of a single component. The data connector 7 on the rear outer wall of the base 203 is connected to the data cable 8 for data transmission. The bottom slide groove 9 can slide along the track. The connecting posts 10 at the four corners of the inner wall are used for fixed connection with the protective shell 201 and other components. The whole system realizes the functional combination through the elastic connection of the spring strip 6 and the sliding positioning of the slide groove 9 to transmit data.

[0046] Working principle: When it is necessary to operate the internal components of the terminal block, the operator applies external force to the cover plate 2051 of the flip cover assembly 205. Since the cover plate 2051 is rotatably connected to the front and rear sides of the inner wall of the protective shell 201 via a rotating shaft, the external force causes the cover plate 2051 to rotate around the rotating shaft, thereby opening the flip cover. During the opening process, the latch 2052 on one side of the outer wall of the cover plate 2051 separates from the slots 2054 on the left and right sides of the inner wall of the protective shell 201. At this time, the flip cover is not constrained by the main body, and the operator can disassemble the cover plate 2051 according to actual needs. This allows for convenient installation and maintenance of internal components in the terminal block. Simultaneously, the drive mechanism 3 at the bottom of the inner wall of the mounting bracket 1 provides convenient operational assistance. After operation, the flip cover needs to be closed; the latch 2052 engages with the slot 2054, securing the side of the flip cover to the protective shell 201, preventing it from opening and ensuring the reliability of the lead seal. This guarantees the safety and stability of the electrical system. Furthermore, the flip cover assembly 205 has positioning mechanisms in both the open and closed states, allowing operators to easily access the flip cover. The flip cover provides clear tactile feedback when both opening and closing. When closing the flip cover, the positioning mechanism also produces a corresponding tactile change the moment the latch 2052 engages with the slot 2054, allowing the operator to clearly know that the flip cover has been correctly closed and locked, thereby improving the accuracy and reliability of the operation. In the protection mechanism 2, the internal components are protected in all directions. The protective shell 201, as the main protective component, can prevent external dust, moisture, foreign objects, etc. from entering the inside of the terminal block, avoiding damage to the internal components of the terminal block. The fixing block 202 and the base 203 play a role in stabilizing the protective shell 201, ensuring that the protection mechanism 2 remains stable in various environments. The fixing strip 204 further strengthens the connection strength between the protective shell 201 and the base 203, and can also limit and fix the internal components to a certain extent, preventing the components from shaking inside the terminal block. The fixing plate 2053 and the observation window 2055 on the top of the inner wall of the protective shell 201 allow the operator to observe the working status of the internal components of the terminal block without opening the flip cover, facilitating daily inspection and maintenance.

[0047] The circuit board 301, as the main control component, is fixed on both sides of the mounting bracket 1, supporting and connecting various electronic components. The display screen 302 is powered and transmits signals through the circuit board 301, used to display device status, data, or operating interface. Its side data port 303 can connect to an external device data cable 8 to achieve data interaction or program input. The insulating plate 304 is fixed to one side of the circuit board 301, isolating the circuit from the external structure, preventing short circuits, and ensuring safety. The base plate 305 supports the circuit board 301 and connecting components 306. The power supply 3061 on its top provides power to the entire drive mechanism 3, and is connected to the circuit board 301 and socket 306 via wires. The circuit board 301 connects components such as the display screen 302, the power supply 3061, and the socket 3062. The socket 3062 is distributed on the front and rear sides of the base plate 305. The internal socket 3063 is used to insert an external power cord or device plug. The pressure plate 3064 is rotatably connected to the top of the socket 3063. After the plug is inserted, it can be fixed by the pressure plate 3064 to prevent the interface from loosening and ensure stable current transmission. The circuit board 301 coordinates the display screen 302, the power supply 3061, and the socket 3062. Data interaction is realized through the data interface 303. The power supply 3061 provides power, the socket 3062 connects to external devices, and the pressure plate 3064 ensures that the interface is stable, thereby driving the device to operate and completing the functions of data connection and power transmission.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A terminal cover structure comprising a fixed frame (1), characterized in that: The outer wall of the fixed frame (1) is fixedly connected with a protective mechanism (2), which is used to protect the internal components. The bottom of the inner wall of the fixed frame (1) is fixedly connected with a driving mechanism (3), which is used to provide convenient operation. The protective mechanism (2) includes a protective shell (201), which is fixedly connected to the top of the outer wall of the fixing frame (1). Multiple fixing blocks (202) are fixedly connected to the bottom left and right sides of the protective shell (201). A base (203) is fixedly connected to the bottom of the outer wall of the fixing block (202). Fixing strips (204) are fixedly connected to the inner walls of the protective shell (201) and the base (203). A flip cover assembly (205) is rotatably connected to the front and rear sides of the inner wall of the protective shell (201).

2. The terminal flip cover structure of claim 1, wherein: The flip-top assembly (205) includes two cover plates (2051), which are rotatably connected to the front and rear sides of the inner wall of the protective shell (201). A buckle (2052) is provided on one side of the outer wall of the two cover plates (2051). The left and right sides of the inner wall of the protective shell (201) are fixedly connected to the slots (2054), which engage with the cover plates (2051). A fixing plate (2053) is fixedly connected to the top of the inner wall of the protective shell (201), and an observation window (2055) is fixedly connected to the front side of the outer wall of the fixing plate (2053).

3. The terminal flip cover structure of claim 1, wherein: The driving mechanism (3) includes a circuit board (301), which is fixedly connected to the left and right sides of the outer wall of the fixing frame (1). A display screen (302) is fixedly connected to the top of the outer wall of the circuit board (301). A data interface hole (303) is opened on one side of the outer wall of the display screen (302). An insulating plate (304) is fixedly connected to one side of the outer wall of the circuit board (301). A base plate (305) is fixedly connected to the bottom adjacent side of the circuit board (301). A connecting component (306) is fixedly connected to the top of the outer wall of the base plate (305).

4. The terminal flip cover structure of claim 3, wherein: The connection assembly (306) includes a power distribution unit (3061), which is fixedly connected to the middle of the top wall of the base plate (305). Multiple sockets (3062) are fixedly connected to the front and rear sides of the top of the base plate (305). The middle of the inner wall of the multiple sockets (3062) is provided with a socket hole (3063), and a pressure plate (3064) is rotatably connected to the top of the outer wall of the socket hole (3063).

5. The terminal block flip-top structure according to claim 1, characterized in that: A fixing plate 2 (5) is fixedly connected to the bottom front side of the protective shell (201), and a spring strip (6) is fixedly connected to the middle of the inner wall of the fixing plate 2 (5).

6. The terminal block flip-top structure according to claim 1, characterized in that: A data connector (7) is installed on the rear side of the outer wall of the base (203), and a data cable (8) is fixedly connected to the rear side of the outer wall of the data connector (7).

7. The terminal block flip-cover structure according to claim 1, characterized in that: The bottom of the outer wall of the base (203) is provided with a sliding groove (9), and the four corners of the inner wall of the base (203) are fixedly connected with connecting columns (10).

8. The terminal block flip-top structure according to claim 1, characterized in that: The protective shell (201) is rotatably connected to the top rear side of a movable plate (11), and a movable groove (4) is provided on one side of the outer wall of the movable plate (11).