In-wall fixing device of wall switch

Abstract

The utility model discloses an in-wall fixing device of a wall switch. The in-wall fixing device comprises a middle plate, a claw piece, a fixing bolt and a pressing plate. The free hook ends of the claw pieces are hooked with the inner wall of the mounting cassette, and the upper surfaces of the supporting bosses on the two sides of the middle plate abut against the bottom faces of the claw pieces in the buckled state and are provided with first through holes matched with the fixing bolts; positioning plates at two ends of a positioning vertical plate on the middle plate form a limiting chute for the claw piece to move up and down; a warping plate protruding part of the positioning vertical plate in the limiting sliding groove comprises a transition inclined face and an unlocking positioning face, one end of a pressing plate abuts against the warping plate protruding part, the other end of the pressing plate is connected with the claw piece through a pressing protruding foot, and a fixing bolt is in threaded connection with a pressing plate screw hole. The device is convenient to mount and dismount, simple to operate, free of complex tools and capable of reducing operation difficulty; the stability of the claw piece can be enhanced, shaking is avoided, and the use safety and reliability are improved; in addition, the claw piece can be kept stable in an unlocking state, unlocking failure is prevented, and the service life of the wall switch and the installation cassette is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of wall switch technology, specifically to a wall-mounted fixing device for a wall switch. Background Technology

[0002] Traditional wall switch installation methods have several shortcomings. Common screw connections require tools for both installation and removal, making the process cumbersome, time-consuming, and difficult for non-professionals. Furthermore, repeated screw tightening can strip the screws, affecting the switch's fixation and lifespan. While using metal claws on the switch body to hook into the inner wall of the mounting box is relatively convenient and quick, it also has serious flaws (the existing structure can be found in the wall switch mounting connection structure disclosed in patent application CN201920478982.3). Existing structures lack a positioning mechanism for the claws during certain processes—in the unlocked and locked states—leading to wobbling of the claws during use, resulting in an unstable connection between the switch and the mounting box.

[0003] To solve the above technical problems, this application proposes a wall-mounted fixing device for a wall switch. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a wall-mounted fixing device for a wall switch.

[0005] The technical solution adopted by this utility model is: a wall-mounted fixing device for a wall switch, including a middle plate, claws, fixing bolts and pressure plates. The free hook end of the claws hooks into the inner wall of the mounting box pre-set in the wall. The middle plate has supporting bosses on both sides. The upper surface of the supporting bosses can abut against the bottom surface of the claws in the fastened state. The supporting bosses are provided with a through hole that rotates with the fixing bolt.

[0006] A positioning plate is provided on the middle plate located inside the supporting boss. Positioning plates are provided at both ends of the positioning plate. A limiting groove for the claw to move up and down is formed between the positioning plates.

[0007] The positioning plate inside the limiting slide groove is provided with a rocker protrusion that protrudes towards the claw side. The rocker protrusion includes a transition slope and an unlocking positioning surface.

[0008] The fixing bolt is threadedly connected to the screw hole of the pressure plate. One end of the pressure plate abuts against the protrusion of the rocker plate, and the other end has a pressure protrusion connected to the claw.

[0009] Furthermore, the supporting boss has an arched structure and is integrally formed with the middle plate.

[0010] Furthermore, the bottom surface of the claw is provided with a long slot for fixing bolts to pass through the connection.

[0011] Furthermore, the upper end of the positioning plate is provided with a through hole for rotating and engaging a fixing bolt.

[0012] Furthermore, weight-reduction holes are provided on both sides of the positioning plate.

[0013] Furthermore, the rocker protrusion is integrally formed with the middle plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. Easy Installation and Disassembly: Compared to traditional screw connections, this device eliminates the need for complex tools and cumbersome operations. During installation, simply operate the fixing bolts to quickly hook and fix the claw to the mounting box; during disassembly, reverse the operation of the fixing bolts to easily separate them, greatly saving time and effort, reducing operational difficulty, and making it easy for even non-professionals to complete, effectively improving the convenience of installation and maintenance.

[0016] 2. Enhanced claw stability: By setting support bosses on both sides of the middle plate, with the upper surface of the support bosses parallel to the bottom surface of the claw, the two overlap each other when locked, effectively distributing the pressure on the claw and preventing relative wobbling, thus stabilizing the claw. Simultaneously, the positioning plates at both ends of the positioning plate form limiting grooves, within which the claw moves up and down, preventing wobbling during movement and improving the safety and reliability of the wall switch.

[0017] 3. Stable position in unlocked state: During the process of the claw moving from the locked state to the unlocked state, the pressure plate moves from the transition slope to the unlocking positioning surface under the action of the fixing bolts. In the unlocked state, the unlocking positioning surface abuts against the pressure plate (e.g., Figure 1 As shown in the figure, during this process, due to the rocker's convex part, one end of the pressure plate will be lifted up, raising the claw while being pressed by the pressure plate's protruding foot, forcing the claw to remain in the unlocked state. This prevents the claw from shaking during unlocking and causing unlocking failure, thus avoiding additional damage to the wall switch caused by the claw shaking and extending the service life of the wall switch and the mounting box.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the claw component in the unlocked state.

[0020] Figure 2 This is a schematic diagram of the claw component in the clamped state.

[0021] Figure 3 A schematic diagram of an explosion.

[0022] Figure 1-3 Components: 1. Middle plate; 2. Claw; 3. Fixing bolt; 4. Pressure plate; 5. Support boss; 6. Upper surface; 7. Claw bottom surface; 8. Through hole one; 9. Positioning plate; 10. Positioning plate; 11. Limiting groove; 12. Rocker protrusion; 13. Transition slope; 14. Unlocking positioning surface; 15. Screw hole; 16. Pressure protrusion; 17. Long slot; 18. Through hole two; 19. Weight reduction hole. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] This utility model provides a wall-mounted fixing device for a wall switch.

[0026] In this embodiment, refer to Figure 1-3 The wall switch mounting device includes a middle plate 1, a claw 2, a fixing bolt 3, and a pressure plate 4. The free hook end of the claw hooks and the inner wall of the mounting box pre-installed in the wall are hooked together. The middle plate has support bosses 5 on both sides. The upper surface 6 of the support bosses 5 can abut against the bottom surface 7 of the claw in the fastened state. The support bosses are provided with through holes 8 that rotate with the fixing bolt.

[0027] A positioning plate 9 is provided on the middle plate located inside the supporting boss. Positioning plates 10 are provided at both ends of the positioning plate 9. A limiting groove 11 for the claw to move up and down is formed between the positioning plates 10 and the positioning plates 10.

[0028] The positioning plate inside the limiting slide groove 11 is provided with a rocker protrusion 12 that protrudes towards the claw side. The rocker protrusion 12 includes a transition slope 13 and an unlocking positioning surface 14.

[0029] The fixing bolt is threadedly connected to the screw hole 15 of the pressure plate. One end of the pressure plate abuts against the protrusion of the rocker plate, and the other end has a pressure protrusion 16 connected to the claw.

[0030] In the above technical solution, the support bosses on both sides of the middle plate provide an installation base for the fixing bolts. The upper surface of the support boss abuts against the bottom surface of the claw when it is fastened, providing support and stability. The limiting grooves formed by the positioning plate and the positioning plates at both ends restrict the movement trajectory of the claw, allowing it to move only up and down and preventing it from swaying left and right. The transition slope of the rocker plate protrusion and the unlocking positioning surface cooperate with the pressure plate. When the fixing bolt rotates, the pressure plate displaces, with one end moving along the rocker plate protrusion and the pressure-applying protrusion at the other end acting on the claw to realize the opening and closing action of the claw.

[0031] The coordinated action of the supporting boss, limiting groove, rocker protrusion, and pressure plate ensures stable movement of the claw during installation and disassembly, preventing wobbling. It precisely engages with the junction box during installation and reliably separates during disassembly, improving the stability and ease of operation of wall switches.

[0032] The upper surface of the support boss is set parallel to the bottom surface of the claw, so that when the two are in contact, they can form a stable support and ensure the stability of the claw in the clamped state.

[0033] Specifically, the supporting boss has an arched structure and is integrally formed with the middle plate.

[0034] In this embodiment, the support boss adopts an arched structure and is integrally formed with the middle plate, which improves the support capacity of the support boss for the claw, making it less prone to deformation when subjected to large external forces and ensuring the stability of the connection between the claw and the mounting box. At the same time, the integral forming reduces the number of parts and assembly steps, lowers production costs, and improves production efficiency.

[0035] Specifically, the bottom surface of the claw is provided with a long slot 17 for fixing bolts to pass through the connection.

[0036] In this embodiment, the long slot on the bottom surface of the claw allows the fixing bolt to pass through, and the long slot provides a certain amount of movement space for the claw in the axial direction of the fixing bolt. Combined with the pressure action of the pressure plate on the claw, the claw can open and close more flexibly.

[0037] Specifically, the upper end of the positioning plate is provided with a through hole 18 for rotating and engaging with a fixing bolt.

[0038] In this embodiment, the second through hole is used to position and fix the bolt.

[0039] Specifically, the positioning plate is provided with weight reduction holes 19 on both sides.

[0040] In this embodiment, weight-reducing holes are provided on both sides of the positioning plate, which reduces the weight of the positioning plate without affecting its structural strength and function, and also saves materials.

[0041] Specifically, the convex portion of the rocker plate is integrally formed with the middle plate.

[0042] In this embodiment, the rocker protrusion and the middle plate are integrally formed. This integral forming reduces the number of parts and assembly steps, lowers production costs, and improves production efficiency.

[0043] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A wall-mounted fixing device for a wall switch, comprising a middle plate, claws, fixing bolts, and a pressure plate, wherein the free hook end of the claws engages with the inner wall of a pre-installed mounting box in the wall, characterized in that: The middle plate has support bosses on both sides. The upper surface of the support bosses can abut against the bottom surface of the claw in the fastened state. The support bosses are provided with a through hole that rotates with the fixing bolt. A positioning plate is provided on the middle plate located inside the supporting boss. Positioning plates are provided at both ends of the positioning plate. A limiting groove for the claw to move up and down is formed between the positioning plates. The positioning plate inside the limiting slide groove is provided with a rocker protrusion that protrudes towards the claw side. The rocker protrusion includes a transition slope and an unlocking positioning surface. The fixing bolt is threadedly connected to the screw hole of the pressure plate. One end of the pressure plate abuts against the protrusion of the rocker plate, and the other end has a pressure protrusion connected to the claw.

2. The wall-mounted fixing device for a wall switch according to claim 1, characterized in that: The supporting boss has an arched structure and is integrally formed with the middle plate.

3. The wall-mounted fixing device for a wall switch according to claim 1, characterized in that: The bottom surface of the claw is provided with a long slot for fixing bolts to pass through the connection.

4. The wall-mounted fixing device for a wall switch according to claim 1, characterized in that: The upper end of the positioning plate is provided with a through hole for a fixed bolt to rotate and engage.

5. The wall-mounted fixing device for a wall switch according to claim 1, characterized in that: The positioning plate has weight-reducing holes on both sides.

6. The wall-mounted fixing device for a wall switch according to claim 1, characterized in that: The rocker protrusion is integrally formed with the middle plate.

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