Anti-loose wiring device for low-voltage electrical apparatus

Abstract

The utility model discloses a low -voltage electric appliance anti -loosening wiring device relates to low -voltage electric appliance technical field, the utility model discloses a low -voltage electric appliance body is provided with wiring slot on low -voltage electric appliance body, installs the protective cover on wiring slot, and the bottom of wiring slot is equipped with the conducting board, and the bolt hole is provided on the conducting board, still include slip and fastening screw, and fastening screw is worn and is established on the slip, the slip bottom both sides are equipped with the wedge -shaped block, and the slip is adapted to install in wiring slot, and the slip bottom is installed wiring terminal with the conducting board, and after fastening screw and bolt hole cooperation are tightened, the wedge -shaped block of slip bottom is crimped on wiring terminal, and the slip is positioned to wiring terminal, after fastening screw and bolt hole cooperation are tightened, when the slip lower part is completely pasted with wiring terminal, the wedge -shaped block of both sides is formed to wiring terminal and forms the pulling force, and the wedge -shaped block of both sides hinders wiring terminal loosening and exits, solves the unstable connection of present wiring terminal, and the problem of unfirm fixation.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical technology, and in particular to a low-voltage electrical anti-loosening wiring device. Background Technology

[0002] In the field of low-voltage electrical appliances, flat washer type terminal screws are often used as fasteners for electrical components. However, during the wiring process, due to the limited contact area between the flat washer type terminal screw and the terminal, the tightness of the wiring is low when subjected to external factors such as vibration, and it is very easy for the wiring to come loose. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a low-voltage electrical appliance anti-loosening wiring device, which solves the problem that the fasteners on the terminals of existing electrical components are not secure and are prone to falling off.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A low-voltage electrical appliance anti-loosening wiring device includes a low-voltage electrical appliance body with a wiring groove on the body. A protective cover is installed on the wiring groove, and a conductive plate is provided at the bottom of the wiring groove. Bolt holes are provided on the conductive plate. The device also includes a clamp and a fastening screw. The fastening screw passes through the clamp. Wedge-shaped blocks are provided at the front and rear positions of the bottom of the clamp. The clamp is adapted to be installed in the wiring groove. A terminal is installed between the bottom of the clamp and the conductive plate. After the fastening screw is tightened by engaging the bolt holes, the wedge-shaped blocks at the bottom of the clamp press against the terminal, limiting the position of the terminal.

[0006] Furthermore, the bottom ends of the clapper are symmetrical arc panels.

[0007] Furthermore, the slip has guide protrusions at both ends, and the slip is slidably connected to the wiring groove through the guide protrusions. A self-resetting elastic element is provided between the bottom of the guide protrusion and the bottom of the wiring groove.

[0008] Furthermore, an anti-loosening washer is provided between the fastening screw and the locking clip.

[0009] Furthermore, the protective cover is provided with a limiting block, which is located above the guide protrusion to limit the guide protrusion.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. Install the terminal block between the bottom of the clamp and the conductive plate. After the fastening screw is tightened in the bolt hole, when the lower part of the clamp is completely in contact with the terminal block, the wedge blocks set at the front and back exert a pulling force on the terminal block, preventing the terminal block from loosening and coming out, thus solving the problem of unstable connection and unreliable fixation of the existing terminal block.

[0012] 2. When the clamp is installed in the wiring trough, the arc design at the bottom of the clamp provides a guiding function, ensuring the accuracy of the clamp's installation in conjunction with the wiring trough.

[0013] 3. Through the design of the self-resetting elastic element, the chuck is lifted up under the action of the self-resetting elastic element, without the need to disassemble the protective cover and fastening screws, so that "OT" type terminal, "U" type terminal and tubular terminal can be universally used. This solves the limitations of terminal selection and the single wiring form, improves the reliability of wiring of low voltage electrical components, and broadens the application industries of low voltage electrical components. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the chuck in this utility model;

[0016] Figure 3 This is an assembly diagram of the present invention;

[0017] Figure 4 This is a cross-sectional view of the present invention.

[0018] In the picture:

[0019] 1. Low-voltage electrical appliance body; 2. Wiring groove; 3. Protective cover; 4. Conductive plate; 5. Bolt hole; 6. Clip; 7. Fastening screw; 8. Wedge block; 9. Guide protrusion; 10. Self-resetting elastic element; 11. Anti-loosening washer; 12. Limit block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0021] A low-voltage electrical appliance anti-loosening wiring device includes a low-voltage electrical appliance body 1, a wiring groove 2 on the low-voltage electrical appliance body 1, a protective cover 3 installed on the wiring groove 2, a conductive plate 4 at the bottom of the wiring groove 2, and bolt holes 5 on the conductive plate 4. It also includes a retainer 6 and a fastening screw 7, with the fastening screw 7 passing through the retainer 6. The retainer 6 has wedge-shaped blocks 8 at both the front and rear positions of its bottom. The retainer 6 is fitted into the wiring groove 2, and a terminal is installed between the bottom of the retainer 6 and the conductive plate 4. After the fastening screw 7 is tightened into the bolt holes 5, the wedge-shaped blocks 8 at the bottom of the retainer 6 press against the terminal, limiting the terminal's position. The wedge-shaped blocks 8 are inclined, with the outer side higher than the inner side. When the retainer 6 is installed between the bottom of the retainer 6 and the conductive plate 4, and the fastening screw 7 is tightened into the bolt holes 5, and the lower part of the retainer 6 is fully in contact with the terminal, the wedge-shaped blocks 8 at the front and rear exert a pulling force on the terminal, preventing it from loosening and retracting. This solves the problem of unstable and unreliable connection of existing terminal blocks.

[0022] The bottom ends of the clamp 6 are symmetrical arc surfaces. When the clamp 6 is installed in the wiring groove 2, it provides a guiding function for the clamp 6 and ensures the accuracy of the clamp 6 and the wiring groove 2 during installation.

[0023] The slip 6 has guide protrusions 9 at both ends, and the slip 6 is slidably connected to the wiring groove 2 through the guide protrusions 9. The bottom of the guide protrusion 9 has a self-resetting elastic element 10. The self-resetting elastic element 10 is compressed after the fastening screw 7 is tightened, and resets after the fastening screw 7 is loosened. When wiring, loosening the fastening screw 7 causes the slip 6 to reset under the action of the self-resetting elastic element 10, causing the slip 6 to slide upward in the wiring groove 2. The fastening screw 7 on the slip 6 is kept at a certain distance from the conductive plate 4. Then, an "OT" type terminal, "tubular" type terminal, or "U" type terminal that meets the usage requirements is inserted between the head of the fastening screw 7 and the conductive plate 4. The terminal is then inserted. Once in place, external tools are used to shorten the distance between the fastening screw 7 and the conductive plate 4. The self-resetting elastic element 10 begins to compress until the head of the fastening screw 7 is inserted into the bolt hole 5 of the conductive plate 4 and fully engaged, thus achieving the fastening of the terminal. Through the design of the self-resetting elastic element 10, the latch 6 is lifted up under the action of the self-resetting elastic element 10. Without disassembling the protective cover 3 and the fastening screw 7, it can achieve universality of "OT" type terminal, "U" type terminal and tubular terminal, solving the limitations of terminal selection and the single wiring form, improving the reliability of low-voltage electrical component wiring, and broadening the application industries of low-voltage electrical components.

[0024] An anti-loosening washer 11 is provided between the fastening screw 7 and the slip 6. It can achieve the function of vibration resistance and anti-loosening under external impact and vibration conditions.

[0025] The protective cover 3 is provided with a limiting block 12, which is located above the guide protrusion 9 and limits the guide protrusion 9. The limiting block 12 can limit the guide protrusion 9 and prevent the slip 6 from disengaging from the wiring groove 2 under the action of the self-resetting elastic element 10.

[0026] When using:

[0027] Loosen the fastening screw 7. Subsequently, the locking slip 6 resets under the action of the self-resetting elastic element 10, causing the locking slip 6 to slide upward in the wiring groove 2. Keep the fastening screw 7 on the locking slip 6 at a certain distance from the conductive plate 4. Then, insert the “OT” type terminal, “tubular” type terminal, or “U” type terminal that meets the usage requirements between the head of the fastening screw 7 and the conductive plate 4. After the terminal is inserted into place, use an external tool to shorten the distance between the fastening screw 7 and the conductive plate 4. The self-resetting elastic element 10 begins to compress until the head of the fastening screw 7 is inserted into the bolt hole 5 of the conductive plate 4 and fully engages and locks in place, thus achieving the fastening of the terminal.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 low-voltage electrical appliance anti-loosening wiring device, comprising a low-voltage electrical appliance body (1), a wiring groove (2) formed on the low-voltage electrical appliance body (1), a protective cover (3) installed on the wiring groove (2), a conductive plate (4) provided at the bottom of the wiring groove (2), and bolt holes (5) formed on the conductive plate (4), characterized in that: It also includes a locking plate (6) and a fastening screw (7). The fastening screw (7) is inserted through the locking plate (6). The locking plate (6) has wedge blocks (8) at both the front and rear positions of its bottom. The locking plate (6) is fitted into the wiring groove (2). A wiring terminal is installed between the bottom of the locking plate (6) and the conductive plate (4). After the fastening screw (7) is tightened in conjunction with the bolt hole (5), the wedge block (8) at the bottom of the locking plate (6) presses against the wiring terminal to limit the wiring terminal.

2. The low-voltage electrical appliance anti-loosening wiring device according to claim 1, characterized in that: The bottom two ends of the card (6) are symmetrical arc panels.

3. The low-voltage electrical appliance anti-loosening wiring device according to claim 2, characterized in that: The slip (6) has guide protrusions (9) at both ends. The slip (6) is slidably connected to the wiring groove (2) through the guide protrusions (9). A self-resetting elastic element (10) is provided between the bottom of the guide protrusions (9) and the bottom of the wiring groove (2).

4. A low-voltage electrical appliance anti-loosening wiring device according to claim 3, characterized in that: An anti-loosening washer (11) is provided between the fastening screw (7) and the slip (6).

5. A low-voltage electrical appliance anti-loosening wiring device according to claim 4, characterized in that: The protective cover (3) is provided with a limiting block (12), which is located above the guide protrusion (9) and limits the guide protrusion (9).

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