A mounting bracket for a light fixture switch

Abstract

The utility model discloses a mounting support for lamp switch, be equipped with a plurality of mounting hole on the mounting support, be suitable for screw, its characterized in that, the mounting hole includes top opening section, middle main body section, internal transition section and bottom through -hole section from top to bottom along its axial direction, when the screw is installed in the mounting hole, the screw rod of screw passes bottom through -hole section, the screw head of screw is contained in middle main body section, and the screw rod can move along the length direction of long -slotted inner cavity in the long -slotted inner cavity of middle main body section and bottom through -hole section's long -slotted inner cavity.

Description

Technical Field

[0001] This utility model relates to the field of fixing components technology, specifically to a mounting bracket for a lamp switch. Background Technology

[0002] In the installation and fixing of electrical switches and other devices, screws are typically used for fastening. To achieve accurate positioning of components, adjustment of installation tolerances, or ease of assembly, various types of mounting holes are often used.

[0003] In existing technologies, common screw holes include ordinary round holes, countersunk holes, or oblong holes. Ordinary round holes have a simple structure, but once the hole position is determined, the installation position cannot be adjusted, and high precision is required in the machining of the component. Countersunk holes can hide the head of the countersunk screw under the surface of the component, keeping the surface flat, but they are only suitable for screws with specific head shapes and usually do not have a position adjustment function. In addition, if there is a deviation in the angle of the screw head or the taper angle of the countersunk hole, the screw head may not fit completely with the hole wall, affecting the reliability of the connection.

[0004] Oblong holes and slotted holes (also known as elongated holes or grooved holes) allow screws to move laterally within a certain range, providing convenience for component installation and compensating for certain manufacturing and assembly tolerances. However, simple oblong holes are usually just through holes. When used with countersunk screws, the contact area between the screw head and the hole wall may be insufficient, especially after position adjustment. The fit between the screw head and the oblong hole may not be ideal, potentially leading to problems such as insecure tightening, uneven force distribution, or screw loosening. When the screw is not fully centered in the oblong or slotted hole and is tightened (i.e., offset), the interaction between the screw head and the hole wall may be unsatisfactory, resulting in poor torque transmission, easy jamming or uneven loading, difficulty in obtaining uniform and reliable clamping force, and the hole structure itself cannot effectively dissipate or redistribute the resulting torque stress. Furthermore, simple oblong holes cannot meet the requirements for applications that require the screw head to be recessed into the panel. Utility Model Content

[0005] In order to overcome the technical defects of existing technology where torque transmission is not smooth when screws are screwed into holes, which can easily cause jamming or uneven load, this utility model provides a mounting bracket for lamp switches.

[0006] To solve the above problems, this utility model is implemented according to the following technical solution:

[0007] The present invention relates to a mounting bracket for a lamp switch, wherein the mounting bracket has a plurality of mounting holes adapted for screws, characterized in that the mounting holes, along their axial direction from top to bottom, sequentially include:

[0008] The top opening section has an inner wall that extends along the axial direction to form a groove for the mounting hole;

[0009] The intermediate main body section is located below the top opening section and has a long groove-shaped inner cavity extending along the axial direction;

[0010] An internal transition section is located below the intermediate main body section. The internal transition section includes at least two stepped surfaces arranged sequentially along the axial direction and connects the inner cavity of the intermediate main body section with the inner cavity of the lower hole section.

[0011] The bottom through-hole section is located below the inner transition section and has a long groove-shaped inner cavity, forming a channel that penetrates the bottom of the mounting hole;

[0012] When the screw is installed in the mounting hole, the screw shank passes through the bottom through hole section, the screw head is accommodated in the middle main body section, and the screw shank can move along the length of the long groove-shaped inner cavity in the middle main body section and the long groove-shaped inner cavity in the bottom through hole section.

[0013] Preferably, the elongated groove of the intermediate main body section is composed of two opposing semi-circular ends and two parallel side edges connecting the semi-circular ends.

[0014] Preferably, the stepped surface is inclined relative to the axis.

[0015] Preferably, the top opening section, the middle main body section, the internal transition section, and the bottom through-hole section are all arranged along the same axis.

[0016] Preferably, the connection points of the top opening section, the middle main body section, the internal transition section and the bottom through hole section are all provided with arc transitions.

[0017] Preferably, the inner cavity length and width of the intermediate main body section are adapted to the screw head diameter.

[0018] Preferably, the mounting hole is machined on the mounting bracket, and the mounting bracket includes one or more of the following: a fixing component for the lamp switch, a housing, and an inner housing.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The mounting hole has a top opening section extending along the axial direction on the inner wall, forming a countersunk groove at the top of the hole to provide space for the screw head. The middle body section has an elongated groove-shaped inner cavity extending along the axial direction to provide a receiving area for the screw head.

[0021] Through the long groove-shaped inner cavity of the middle main body section and the long groove-shaped inner cavity of the bottom through hole section, the screw rod can move along the length of the long groove-shaped inner cavity in the mounting hole, thereby realizing the adjustment of the installation position, improving the flexibility of component installation and the tolerance to deviations in the mounting hole position.

[0022] The internal transition section comprises at least two stepped surfaces arranged sequentially along the axial direction, connecting the inner cavity of the intermediate main body section to the inner cavity of the lower through-hole section. These stepped surfaces provide a segmented inner cavity transition. When the screw passes through this area and is tightened, these stepped surfaces can contact the area below the screw shank or head, providing multi-layered support points and helping to distribute the load applied by the screw to some extent. The stepped surfaces mate with the elongated groove-shaped inner cavities of the intermediate main body section and the bottom through-hole section, helping to distribute some of the applied torque during tightening, thereby improving the torsional resistance of the mounting hole and enabling it to withstand greater screw torque under the provided support method. This provides an inner cavity structure for screw passage and positioning that differs from simple round holes or traditional oblong holes.

[0023] When tightening is performed with the screw not fully centered (i.e., screw misalignment), the elongated groove-shaped inner cavity of the middle main body section provides lateral adjustment margin, allowing the screw to shift within a certain range. This helps to better dissipate some torque when the screw is misaligned. The internal transition section contacts the misaligned screw, providing additional support points and assisting in handling the interaction between the screw and the hole wall in the misaligned state. The sidewall contact of the elongated groove-shaped inner cavity also helps to disperse lateral forces when misaligned. Attached Figure Description

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 This is a perspective view of a switch mounting hole according to the present invention;

[0026] Figure 2 This is a top view of a switch mounting hole according to this utility model;

[0027] Figure 3 This is a partial enlarged view of the present invention;

[0028] Figure 4 This is a cross-sectional view of the mounting hole of this utility model;

[0029] Figure 5 This is a cross-sectional view of the mounting hole and screw of this utility model;

[0030] In the diagram: 100 - switch, 10 - mounting hole, 20 - mounting bracket; 11 - top opening section, 12 - middle main body section, 13 - internal transition section, 14 - bottom through hole section. Detailed Implementation

[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0032] like Figures 1-5 As shown, the present invention provides a mounting bracket for a light switch. The mounting bracket 20 has a plurality of mounting holes 10 for screws. The mounting holes 10, along their axial direction from top to bottom, include:

[0033] The inner wall of the top opening section 11 extends along the axial direction to form a groove for the mounting hole;

[0034] The middle main body section 12 is located below the top opening section 11 and has a long groove-shaped inner cavity extending along the axial direction;

[0035] The internal transition section 13 is located below the middle main body section 12. The internal transition section 13 includes at least two stepped surfaces 15 arranged sequentially along the axial direction and connects the inner cavity of the middle main body section 12 with the inner cavity of the lower hole section.

[0036] The bottom through-hole section 14 is located below the inner transition section 13. The bottom through-hole section 14 has a long groove-shaped inner cavity, forming a channel that penetrates the bottom of the mounting hole 10.

[0037] When the screw is installed in the mounting hole 10, the screw shank passes through the bottom through hole section 14, the screw head is accommodated in the middle main body section 12, and the screw shank can move along the length of the long groove-shaped inner cavity in the middle main body section 12 and the long groove-shaped inner cavity in the bottom through hole section 14.

[0038] In this embodiment, when the fitting screw is installed in the mounting hole 10 and tightened, the screw shank passes through the bottom through-hole section 14 and typically engages with a threaded hole on the mounting surface or a nut on another mating component. Figure 5 As shown, the screw head is housed within the elongated slotted cavity of the intermediate body section 12. Since both the elongated slotted cavity of the intermediate body section 12 and the elongated slotted cavity of the bottom through-hole section 14 provide space along their length, the screw shaft can move within both the elongated slotted cavities of the intermediate body section 12 and the bottom through-hole section 14, along the length of the slotted cavity.

[0039] In this embodiment, the structure is typically formed within the solid substrate of a component (e.g., the housing, inner shell, or fastener of the light switch 100) for securing the component with a suitable screw. The switch 100 has a mounting hole that accommodates a screw head.

[0040] The top opening section 11 is located on the top surface of the mounting hole (i.e., the mounting surface), such as... Figure 1 , Figure 3 and Figure 4 As shown, specifically, in this embodiment, there is an optional implementation where the inner wall of the top opening section 11 can have an inwardly converging tapered shape. This tapered inner wall is adapted to the taper angle of the corresponding screw head. This is an optional implementation in this embodiment and will not be described in detail here. The top opening section 11 is used to receive the screw head, so that the screw head can be flush with or slightly recessed from the mounting surface after tightening.

[0041] The middle main body segment 12 is located below the top opening segment 11 and is connected to the bottom of the top opening segment 11. For example... Figure 2 As shown, it can be understood that the intermediate main body segment 12 has a long groove-shaped (or waist-shaped) profile in a plane perpendicular to the axis, which extends downward along the axial direction to form a long groove-shaped inner cavity. The width of this long groove-shaped inner cavity is greater than the diameter of the adapting screw rod, and its length provides space to accommodate the screw rod and allow for lateral movement (i.e., position adjustment) within a certain range. Figure 4 As shown, the sidewalls of the long groove-shaped inner cavity of the middle main body section 12 can be basically parallel to the axis, or slightly angled according to design requirements.

[0042] The internal transition section 13 is located below the intermediate main body section 12 and connects the elongated groove-shaped inner cavity of the intermediate main body section 12 with the elongated groove-shaped inner cavity of the bottom through-hole section 14 below. For example... Figure 1 and 4 As shown, the stepped surfaces 15 can be connected by inclined surfaces. This design creates a transition with a decreasing diameter (or width) from the elongated groove-shaped cavity of the middle main body section 12 to the elongated groove-shaped cavity of the bottom through-hole section 14. Its structural shape can interact with the transition area below the screw shank or head to guide and support the screw.

[0043] The bottom through-hole section 14 is located below and connected to the inner transition section 13. The bottom through-hole section 14 has an elongated slotted cavity that forms a channel extending through the bottom of the mounting hole. The dimensions of this elongated slotted cavity are adapted to the shank of the screw, allowing the screw shank to pass through and connect with a threaded portion (e.g., a threaded hole or nut).

[0044] The top opening section 11, the middle main body section 12, the internal transition section 13, and the bottom through-hole section 14 are all arranged basically along the same central axis. In this embodiment, the entire mounting hole is formed on a solid substrate through processes such as drilling, milling, stamping, molding, or injection molding. The solid substrate can be a metallic material or an environmentally friendly plastic, such as aluminum alloy, titanium alloy, or high-strength steel. To enhance the wear resistance and pull-out resistance of the mounting hole, the inner wall surface of the mounting hole can be hardened during or after manufacturing as needed to form a hardened layer.

[0045] In this invention, it is understood that the mounting hole 10 has a central axis running through it along its length. That is, a vertically downward axis. All components of the mounting hole 10, including the top opening section 11, the middle main body section 12, the inner transition section 13, and the bottom through-hole section 14, are designed and machined around this central axis and arranged sequentially along this axis. In a preferred embodiment, the top opening section 11, the middle main body section 12, the inner transition section 13, and the bottom through-hole section 14 are machined to be aligned along the same central axis. This coaxiality ensures that the adapter screw can smoothly pass through different areas of the mounting hole 10, reducing jamming.

[0046] When using the mounting hole of the switch 100 of this invention to fix components, align the component with the screw with the top opening section 11 of the screw hole and pass the screw shank through it. The lateral movement allowance provided by the elongated groove-shaped inner cavity of the middle body section 12 allows for easy adjustment of the component's mounting position. Subsequently, the screw shank passes through the inner transition section 13 and the bottom through-hole section 14, and engages with the pre-set threaded hole or nut for tightening. During tightening, the inner transition section 13 of the mounting hole, along with the elongated groove-shaped inner cavity of the middle body section 12 and the bottom through-hole section 14, work together to effectively guide the screw, distribute stress, and manage torque. This improves the stability of the tightening, especially in cases of screw misalignment, and allows it to withstand greater torque. The top opening section 11 ensures proper screw head penetration, keeping the mounting surface clean.

[0047] This specific embodiment describes one implementation of the present invention. The specific dimensions of the mounting hole, the length ratio of each part, the number and angle of the steps in the transition section, and the specific dimensions of the elongated groove can be specifically designed and adjusted according to the actual screw specifications and application requirements. For example, the length and width of the elongated groove inner cavity of the middle main body section 12 and the bottom through hole section 14 can be determined according to the required adjustment range and the diameter of the screw to be used; the steps or inclination angle of the internal transition section 13 can be optimized according to the requirements of torque transmission and guidance. These variations and modifications are all within the protection scope of the present invention.

[0048] Preferably, the elongated groove of the middle main body segment 12 consists of two opposing semicircular ends and two parallel side edges connecting the semicircular ends.

[0049] The middle main body segment 12 is located below the top opening segment 11 and is connected to the bottom of the top opening segment 11. For example... Figure 2As shown, the intermediate main body segment 12 has an elongated groove-shaped inner cavity in a plane perpendicular to the axis. Specifically, the elongated groove-shaped inner cavity of the intermediate main body segment 12 is composed of two opposing semi-circular ends and two substantially parallel sidewalls connecting the semi-circular ends. This elongated groove-shaped inner cavity extends downward along the axial direction. The width of the elongated groove-shaped inner cavity is typically designed to be greater than the diameter of the fitting screw shank, while its length direction (i.e., the direction connecting the two semi-circular ends) provides space to accommodate the screw shank and allow for lateral movement (i.e., position adjustment) within a certain range. Figure 4 As shown, the sidewalls of the long groove-shaped inner cavity of the middle main body section 12 can be basically parallel to the axis, or designed with a slight angle according to the overall structure and process requirements.

[0050] Preferably, the internal transition section 13 includes at least two stepped surfaces 15 arranged sequentially along the axial direction.

[0051] The internal transition section 13 is located below the intermediate main body section 12 and connects the elongated groove-shaped inner cavity of the intermediate main body section 12 with the elongated groove-shaped inner cavity of the bottom through-hole section 14 below. For example... Figure 1 and 4 As shown, the internal transition section 13 forms a transition structure where the inner cavity diameter gradually decreases along the axial direction. Specifically, these stepped surfaces 15 are located on different diameter levels, and these stepped surfaces 15 can be connected by inclined or vertical surfaces, collectively forming a diameter-decreasing transition region from the inner cavity of the middle main body section 12 to the inner cavity of the lower bottom through-hole section 14. For example, in Figure 4 In the illustrated embodiment, at least two distinct diameter variation layers can be seen, forming a multi-level transition. This stepped design helps to provide graded support and contact to specific areas below the screw shank or head as the screw passes through this region, thereby better guiding the screw and distributing stress.

[0052] Preferably, the stepped surface 15 is inclined relative to the axis.

[0053] The stepped surface 15 of the inner transition section 13 is inclined relative to the axis of the mounting hole. This inclined design helps to guide the screw as it passes through the inner transition section 13, allowing torque to be effectively transferred between different contact surfaces, thereby improving the stability of the fastening.

[0054] Preferably, the top opening section 11, the middle main body section 12, the internal transition section 13, and the bottom through-hole section 14 are all arranged along the same axis.

[0055] Preferably, the connection points of the top opening section 11, the middle main body section 12, the internal transition section 13 and the bottom through hole section 14 are all provided with arc transitions.

[0056] In a preferred embodiment, to optimize stress distribution, reduce stress concentration, and improve processing feasibility, the connections between the top opening section 11 and the middle main body section 12, the middle main body section 12 and the inner transition section 13, and the inner transition section 13 and the bottom through-hole section 14 are all provided with rounded transitions (rounded corners). Figure 1 and Figure 4 As shown, these circular arc transitions make the transitions inside the hole structure smoother and more fluid.

[0057] Preferably, the inner cavity length and width of the middle main body section 12 are adapted to the screw head diameter.

[0058] The length and width of the elongated slotted inner cavity of the intermediate main body section 12 are designed to match the specifications of the screw being fitted, and are specifically adapted to the screw head diameter. This adaptability ensures that the screw shank has sufficient space for movement and adjustment within the elongated slotted inner cavity. Specific numerical settings will not be elaborated upon here.

[0059] Preferably, the mounting hole 10 is machined on the mounting bracket 20, which includes one or more of the following: a fixing component of the lamp switch 100, a housing, and an inner housing.

[0060] In this embodiment, a preferred embodiment is provided, where the mounting hole is directly machined into a specific fixing component of the lighting switch 100. For example... Figures 1-4 As shown, the mounting bracket 20 is a component of the lighting switch 100, and may include one or more of the following: a fixing component, a housing, and an inner housing of the lighting switch 100. The mounting holes 10 may be directly integrated into the housing of the lighting switch 100, machined into the fixing component inside the lighting switch, or onto its inner housing, as part of the mounting bracket 20. The mounting holes 10 on the mounting bracket 20 serve as the mounting interface for the entire lighting switch 100, used to fix the lighting switch 100 to a wall, panel, or other mounting surface using compatible screws, or for fixing internal components of the lighting switch 100. This robust fixing method not only makes the installation process more convenient and reliable, but also provides more effective protection for the lighting switch 100. Specifically, stable installation can reduce the impact of external forces (such as pressing or accidental collisions) or environmental vibrations on the switch 100 during use, and prevent these external forces from being directly transmitted to the delicate electrical connection points and mechanical transmission mechanism inside the switch 100. This more effectively protects the internal components of the switch 100 from stress, deformation or damage, and improves the overall service life of the lighting switch 100.

[0061] In summary, this utility model provides a mounting bracket for a lighting switch, comprising a top open section 11, a middle main body section 12 with an elongated groove-shaped inner cavity, an internal transition section 13, and a bottom through-hole section 14. The elongated groove design of the middle main body section 12 provides space for position adjustment during component installation, while the cooperation of the internal transition section 13 (preferably stepped with an inclined stepped surface) and the bottom through-hole section 14 facilitates precise screw guidance, stress dispersion, and torque management, maintaining a tight fit even when the screw is misaligned. When this structure is applied to the fixing parts, housing, or inner shell of a lighting switch, it not only ensures a secure and reliable installation of the switch but also effectively protects the precision components inside the switch from external stress and vibration, extending the service life of the lighting switch.

[0062] The working principle of the mounting bracket for a light switch described in this utility model is as follows: When fixing a component, first align the mounting hole on the component to be fixed (e.g., a light switch) with the mounting point (e.g., a threaded hole or nut position) on the mounting surface or another mating component. Screw the appropriate screw into or through the mounting hole from the top opening section. The inner wall of the top opening section provides initial guidance for the screw head, facilitating smooth entry into the hole. The screw shank passes through the top opening section and enters the elongated slotted cavity of the middle main body section. The elongated slotted cavity of the middle main body section provides lateral space along the slot direction on a plane perpendicular to the axis. The installer can utilize the movement allowance of the screw shank within this elongated slotted cavity to flexibly adjust the installation position of the component to be fixed within a certain range to achieve precise alignment. After adjusting and initially positioning the installation position, continue tightening the screw. The transition area below the screw shank or screw head will enter the internal transition section located below the middle main body section. The internal transition section features a gradually decreasing diameter transition structure (e.g., including stepped or inclined surfaces) that interacts with the screw surface (such as the conical or cylindrical surface below the shank or head) as the screw moves downwards. This interaction guides the screw toward the central axis of the mounting hole while simultaneously distributing the torque and axial pressure applied by the screw rotation to the hole structure material. Particularly when the screw is not fully centered during tightening (i.e., screw misalignment), the internal transition section effectively guides the misaligned screw and distributes the torque acting on it to the hole wall through multiple contact surfaces, preventing unidirectional stress overload and thus facilitating the screw's passage and entry into the lower hole section.

[0063] After passing through the internal transition section, the screw shank enters the elongated groove of the bottom through-hole section and eventually engages with the threaded hole or nut on the mounting surface or mating component. The elongated groove of the bottom through-hole section extends through the bottom of the hole structure, providing a passage for the screw shank to exit.

[0064] During the final tightening of the screw, the screw head fits tightly against the inner wall of the top opening section, providing axial support and allowing the screw head to sink into place. Simultaneously, the screw shank is laterally constrained within the elongated groove-shaped cavities of the middle body section and the bottom through-hole section. The internal transition section, along with the elongated groove-shaped middle body section and bottom through-hole section, work together to effectively distribute the torque, axial force, and lateral force generated by tightening the screw into the solid substrate containing the mounting hole. This segmented structure optimizes the stress transmission path and improves the hole structure's ability to withstand torque and shear forces. Even with some deviation during installation or vibration during use, this structure maintains a secure screw tightening, effectively preventing loosening and ensuring stable component fixation.

[0065] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A mounting bracket for a light switch, the mounting bracket having a plurality of mounting holes for fitting screws, characterized in that, The mounting holes, along their axial direction from top to bottom, include the following: The top opening section has an inner wall that extends along the axial direction to form a groove for the mounting hole; The intermediate main body section is located below the top opening section and has a long groove-shaped inner cavity extending along the axial direction; An internal transition section is located below the intermediate main body section. The internal transition section includes at least two stepped surfaces arranged sequentially along the axial direction and connects the inner cavity of the intermediate main body section with the inner cavity of the lower hole section. The bottom through-hole section is located below the inner transition section and has a long groove-shaped inner cavity, forming a channel that penetrates the bottom of the mounting hole; When the screw is installed in the mounting hole, the screw shank passes through the bottom through hole section, the screw head is accommodated in the middle main body section, and the screw shank can move along the length of the long groove-shaped inner cavity in the middle main body section and the long groove-shaped inner cavity in the bottom through hole section.

2. The mounting bracket for a lamp switch according to claim 1, characterized in that, The elongated groove shape of the middle main body section is composed of two opposing semi-circular ends and two parallel side edges connecting the semi-circular ends.

3. The mounting bracket for a lamp switch according to claim 1, characterized in that, The stepped surface is inclined relative to the axis.

4. The mounting bracket for a lamp switch according to claim 1, characterized in that, The top opening section, the middle main body section, the internal transition section, and the bottom through-hole section are all arranged along the same axis.

5. A mounting bracket for a lighting switch according to claim 1, characterized in that, The connection points of the top opening section, the middle main body section, the internal transition section, and the bottom through-hole section are all provided with arc transitions.

6. A mounting bracket for a lamp switch according to claim 1, characterized in that, The inner cavity length and width of the intermediate main body section are adapted to the screw head diameter.

7. A mounting bracket for a lighting switch according to any one of claims 1-6, characterized in that, The mounting hole is machined on the mounting bracket, which includes one or more of the following: a fixing component for the light switch, a housing, and an inner housing.

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