A lighting device for a power tool

Abstract

The utility model relates to lighting equipment technical field, concretely relates to a lighting device for electric tool. The present scheme includes casing and light source, the casing is cylindrical and has assembly hole in the middle, the elastic fitting part is arranged in the assembly hole, and the fitting clearance with at least two midpoints on the axis of assembly hole is arranged on the fitting part, the light source is arranged on the casing. The utility model can be stably sleeved on the output shaft of electric tool such as electric drill through the elastic fitting part and the fitting clearance thereon, and has strong versatility and convenient installation. The light source can directly illuminate the tool work point, and solves the problem of obstructed vision under insufficient light environment. The utility model has compact structure, good practicality and protection performance.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, and specifically to a lighting device for power tools. Background Technology

[0002] When using power tools (such as electric drills), especially in dimly lit environments, the user's vision can be easily obstructed by the tool itself or the operator's hands, making it difficult to clearly observe the work point and affecting the accuracy and safety of the operation.

[0003] Currently, some power tools on the market have built-in lighting functions, but their light sources are mostly fixed, with insufficient brightness or non-adjustable illumination angles. Furthermore, they are often integrated by the manufacturer and cannot be compatible with older tools that lack lighting functionality. In addition, there are also independent lights that are fixed by clamping or other methods, but these lights are prone to loosening, shifting, or even falling off in the high-speed rotation and vibration environment of power tools, exhibiting poor stability.

[0004] Therefore, there is an urgent need for a dedicated lighting device for power tools that is universal, securely installed, and provides good illumination. Utility Model Content

[0005] In view of the above, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a lighting device for power tools.

[0006] A lighting device for power tools includes a light source and a housing. The housing is cylindrical with a through mounting hole along its central axis. An elastic fitting is provided at the mounting hole, and the fitting has a plurality of fitting gaps, the midpoint of which is located on the axis of the mounting hole. The light source is disposed on the housing.

[0007] Preferably, there are two fitting gaps, which are arranged in a cross shape.

[0008] Preferably, four fitting gaps are provided, and the four fitting gaps are distributed in a star-shaped pattern.

[0009] Preferably, the light source is a plurality of LED point light sources, which are arranged circumferentially around the housing.

[0010] Preferably, the light source is a C-shaped LED line light source, and the center of the C-shaped LED line light source is located on the axis of the mounting hole.

[0011] Preferably, a switch is provided at the notch position of the C-shaped LED line light source.

[0012] Preferably, the fitting element is a semi-enclosed structure and covers the outer periphery of the housing.

[0013] Preferably, the fitting member has a light-transmitting hole and a switching part; the light source is arranged corresponding to the light-transmitting hole.

[0014] Beneficial effects: Firstly, the lighting device can be tightly fitted onto the output shaft of various power tools of different diameters through elastic deformation by the elastic fitting at the mounting hole and the fitting gap on its central axis. It has a wide range of adaptability and is not easy to loosen or fall off under high-speed rotation and vibration.

[0015] Secondly, the light source shines directly onto the working end of the tool, effectively illuminating the work point and avoiding shadows. In particular, the C-shaped linear light source design not only provides a wider illumination range, but its center being located on the axis also ensures stability during rotation.

[0016] Thirdly, the fitting parts adopt a semi-enclosed structure to cover the shell, which enhances the overall structure's sealing and impact resistance, and has a certain degree of waterproof, dustproof and drop-resistant capabilities. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a lighting device for power tools; Figure 2 A schematic diagram showing the disassembled structure of a lighting device for power tools; Figure 3 One method for setting the fitting gap in lighting devices used for power tools; Figure 4 Method two for setting the fitting gap in the lighting device for power tools; Figure 5 Method three for setting the fitting gap in lighting devices used for power tools.

[0018] Reference numerals: light source 1, housing 2, mounting hole 21, fitting part 3, fitting gap 31, switch part 32, light-transmitting hole 33. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1 to 5The illustration shows a lighting device for power tools, such as electric drills and electric screwdrivers. The lighting device includes a cylindrical housing 2. A through mounting hole 21 is provided in the middle of the housing 2 along its axis for fitting onto the chuck or output shaft of the power tool, such as an electric drill.

[0021] A fitting 3 is provided within the assembly hole 21. This fitting 3 is preferably made of a material with elasticity and wear resistance, and can be made of rubber, silicone, or engineering plastics. In this embodiment, as... Figure 4 As shown, the fitting member 3 is provided with two fitting gaps 31, which are arranged in a cross shape and their midpoints overlap each other, with the overlap point located on the axis of the mounting hole 21. By providing this elastic fitting member 3 with gaps, the mounting hole 21 has a certain ability to expand and deform, and can be firmly fitted onto power tool parts of different diameters to achieve tight fixation.

[0022] A light source 1 is disposed on the housing 2. In this embodiment, the light source 1 uses multiple LED point light sources, which are evenly arranged around the circumference of the housing 2. A battery, a control circuit board, and a switch for controlling the light source 1 to turn on and off are disposed inside the housing 2. These electronic components can all be implemented using existing technologies known in the art.

[0023] Furthermore, the fitting 3 has a semi-enclosed structure, which tightly covers the outer peripheral wall of the housing 2. This structure not only enhances the bonding strength between the fitting 3 and the housing 2 and prevents it from falling off, but also gives the entire lighting device a certain degree of waterproof performance and impact and drop resistance.

[0024] Correspondingly, the fitting 3 has a light-transmitting hole 33 and a switch part 32. The light source 1 is positioned directly opposite the light-transmitting hole 33 to ensure that light can be effectively transmitted. The button part of the switch is fitted with the switch part 32, allowing the user to press the switch part 32 to trigger the internal switch and conveniently control the lighting.

[0025] In use, the housing 2 of this lighting device is fitted onto the back of the drill chuck of the electric drill through the mounting hole 21. Due to the elasticity of the fitting 3, the two cross-shaped fitting gaps 31 will deform under pressure, thus tightly gripping the tool and preventing it from falling off when the tool rotates at high speed. During installation, ensure that the light source 1 faces the working direction of the drill bit. After turning on the switch, the light emitted by the light source 1 will illuminate the working area in front of the drill bit, greatly facilitating the user to accurately observe the drilling point in low-light environments.

[0026] Among them, such as Figure 3 As shown, the fitting component 3 is provided with a fitting gap 31.

[0027] Example 2 This embodiment is a further improvement on Embodiment 1. Its basic structure is the same as that of Embodiment 1, and the main difference lies in the number and arrangement of the fitting gaps 31.

[0028] In this embodiment, as Figure 5 As shown, the fitting component 3 is provided with four fitting gaps 31. These four fitting gaps 31 are distributed in a star shape, that is, they intersect in pairs, and the midpoints of all gaps overlap and are located on the axis of the mounting hole 21.

[0029] This cross-shaped gap design provides more and more uniform deformation support points, enabling the lighting device to adapt to more power tool parts of different sizes and shapes, and to be fixed more stably and reliably, especially suitable for working conditions with large vibrations.

[0030] Example 3 This embodiment is another optimization of the above embodiment. Its basic structure is still similar to that of embodiment one or two. The main difference lies in the shape of the light source 1 and the layout of the switch.

[0031] In this embodiment, the light source 1 is a C-shaped LED line light source. The center of the C-shaped line light source 1 is located on the axis of the mounting hole 21. This design has two significant advantages: Stability: When the power tool rotates, because the light source 1 is axially symmetrical C-shaped, the mass distribution of its light-emitting part is more balanced relative to the axis, which helps to reduce vibration caused by high-speed rotation and improve lighting stability.

[0032] Ease of use: The switch is cleverly positioned at the notch of the C-shaped linear light source 1. This notch forms a natural indicator area, allowing users to easily locate the switch by feel even in the dark, thus improving the convenience of human-computer interaction.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lighting device for power tools, comprising a light source (1), characterized in that, It also includes a housing (2), which is cylindrical with a through-hole (21) along its axis in the middle; a flexible fitting (3) is provided at the fitting hole (21), and a plurality of fitting gaps (31) are provided on the fitting (3), with the midpoint of the plurality of fitting gaps (31) located on the axis of the fitting hole (21); the light source (1) is provided on the housing (2).

2. A lighting device for power tools according to claim 1, characterized in that, There are two fitting gaps (31), and the two fitting gaps (31) are arranged in a cross shape.

3. A lighting device for power tools according to claim 1, characterized in that, There are four fitting gaps (31), and the four fitting gaps (31) are distributed in a cross shape.

4. A lighting device for power tools according to any one of claims 1 to 3, characterized in that, The light source (1) is a plurality of LED point light sources, which are arranged circumferentially around the housing (2).

5. A lighting device for power tools according to any one of claims 1 to 3, characterized in that, The light source (1) is a C-shaped LED line light source, and the center of the C-shaped LED line light source is located on the axis of the mounting hole (21).

6. A lighting device for power tools according to claim 5, characterized in that, The notch of the C-shaped LED line light source is provided with a switch (32).

7. A lighting device for power tools according to claim 1, characterized in that, The fitting element (3) is a semi-enclosed structure and covers the outer periphery of the shell (2).

8. A lighting device for power tools according to claim 7, characterized in that, The fitting part (3) is provided with a light-transmitting hole (33) and a switch part (32); the light source (1) is provided corresponding to the light-transmitting hole (33).

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