An oil-proof LED lamp with adjustable light range

Abstract

The utility model discloses a kind of oil-proof LED lamps of convenient adjustment illumination range, including sealed lamp body, further including frame, its inner profile matches the outer periphery of cladding sealed lamp body, axial slot is opened symmetrically in the both ends of frame, the inner wall of slot is provided with bearing seat one and bearing seat two, bearing seat one is rotatably connected with rotating shaft one and extends to the outside of frame axially, bearing seat two is rotatably connected with rotating shaft two and extends to the outside of frame axially, transmission mechanism is arranged between rotating shaft one and rotating shaft two, the outer wall of rotating shaft one and rotating shaft two is fixedly connected with receiving plate, the surface of receiving plate is detachably connected with light shield, manually operated component is provided on the side of frame, its transmission end is connected with transmission mechanism, manually operated component is driven by external operating force, rotating shaft one and rotating shaft two are synchronously driven to rotate around its own axis by transmission mechanism, and then link receiving plate and the light shield installed to deflect.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting technology, specifically to an oil-resistant LED lamp with easily adjustable illumination range. Background Technology

[0002] Oil-resistant LED lights utilize special sealing technology and oil-resistant materials to effectively prevent grease and liquid from seeping into the lamp body. They are suitable for oily environments such as food processing and machine tool manufacturing. Their high-efficiency LED chips provide uniform illumination and reduce visual fatigue. Combined with explosion-proof design, they can withstand high temperatures and vibrations, extending service life and reducing maintenance costs. With both energy-saving and safety features, they are an ideal lighting solution for harsh industrial scenarios.

[0003] In the existing technology, most traditional LED lighting equipment has a fixed structure, and the illumination angle of its LED lights cannot be adjusted. Even if some use a simple hinge structure to achieve angle adjustment, it is very easy to shift due to vibration or external force, which cannot meet diverse needs such as precise focusing on the work surface or wide-area diffused lighting. At the same time, the light shield of traditional lighting equipment is mostly fixed by screws. This fixing method is cumbersome to disassemble, thus reducing the convenience of operation. Utility Model Content

[0004] The purpose of this utility model is to provide an oil-resistant LED lamp that is easy to adjust the illumination range, so as to solve the problems mentioned in the background art that traditional LED lighting equipment is mostly fixed, the illumination angle is difficult to adjust, and the screw fixing method of the light shield is cumbersome to disassemble and has low operation convenience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil-resistant LED lamp with adjustable illumination range, comprising a sealed lamp body and a frame, the inner contour of which matches and covers the outer periphery of the sealed lamp body. Symmetrical axial slots are opened at both ends of the frame. Bearing seat one and bearing seat two are provided on the inner wall of the slots. A rotating shaft one is rotatably connected to bearing seat one and extends axially to the outside of the frame. A rotating shaft two is rotatably connected to bearing seat two and extends axially to the outside of the frame. A transmission mechanism is provided between rotating shaft one and rotating shaft two. A receiving plate is fixedly connected to the outer wall of rotating shaft one and rotating shaft two. A light-shielding plate is detachably connected to the surface of the receiving plate. A manual operation component is provided on the side of the frame, its transmission end connected to the transmission mechanism. The manual operation component is driven by external operating force, which synchronously drives rotating shaft one and rotating shaft two to rotate around their own axes via the transmission mechanism. This, in turn, causes the receiving plate and its installed light-shielding plate to deflect. By changing the relative angle between the light-shielding plate and the sealed lamp body, the beam coverage area is adjusted.

[0006] According to the preferred embodiment of this technical solution, the transmission mechanism includes a mounting base disposed on the side end of the frame, a bearing disposed inside the mounting base, a transmission rod rotatably connected inside the bearing, a first driving bevel gear fixed to the outer wall of one end of the transmission rod, and a second driving bevel gear fixed to the outer wall of the other end of the transmission rod.

[0007] In a preferred embodiment of this technical solution, the transmission mechanism further includes a driven bevel gear one disposed on the outer wall of the rotating shaft one, a driven bevel gear two disposed on the outer wall of the rotating shaft two, a driving bevel gear one meshing with the driven bevel gear one, and a driving bevel gear two meshing with the driven bevel gear two.

[0008] According to the preferred embodiment of this technical solution, the manual operation component includes a bracket and a bearing seat three disposed on the side end of the frame. A worm gear that passes through the bracket is rotatably connected inside the bearing seat three. A knob is fixedly installed at the end of the worm gear. A worm wheel is provided on the outer wall of the transmission rod, and the worm wheel is meshed with the worm gear.

[0009] Based on the preferred embodiment of this technical solution, the back of the light-shielding plate is integrally provided with a plug rod, and the surface of the receiving plate is provided with a plug hole that matches the plug rod, and the plug rod is inserted into the plug hole.

[0010] In a preferred embodiment of this technical solution, a permanent magnet is provided on the contact surface between the insertion rod and the insertion hole, and the contact surfaces of the insertion rod and the insertion hole are magnetically connected.

[0011] In the preferred embodiment of this technical solution, the end of the insertion rod is provided with a radial expansion member, and the inner wall of the insertion hole is provided with an annular groove at the corresponding position. When the insertion rod is inserted, the expansion member elastically deforms and engages with the groove.

[0012] Based on the preferred embodiment of this technical solution, a support plate and an electromechanical frame are fixedly connected to the surface of the top of the wall. A bearing seat four is installed on the surface of the support plate, and a drive motor is installed on the surface of the electromechanical frame. A lead screw connected to the output shaft of the drive motor is rotatably connected inside the bearing seat four. A drive plate is provided on the threaded section of the lead screw. The lower end face of the drive plate is fixedly connected to the upper end face of the frame. A reinforcing rib plate connected to the top of the wall is fixedly connected to the side wall of the support plate.

[0013] In a preferred embodiment of this technical solution, a guide rail is also installed on the surface of the top of the wall, and a slider is slidably connected to the guide rail, with the lower end face of the slider being fixedly connected to the upper end face of the drive plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The transmission mechanism is driven by the manual operation component to rotate the light shield, thereby achieving precise control of the beam angle. The self-locking characteristic of the worm gear prevents angle deviation due to vibration or external force, ensuring stability after adjustment. 2. The light-shielding plate and the receiving plate adopt a dual fixing method of magnetic connection of plug-in hole and radial expansion buckle, which not only ensures the installation is firm (prevents vibration and falling off), but also supports quick disassembly and replacement by hand to meet the lighting needs of different scenarios. 3. The rotational motion of the lead screw is converted into the linear displacement of the frame through threaded transmission, thereby adjusting the position of the sealed lamp body and thus adjusting the illumination range. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first structure of one embodiment of the oil-resistant LED lamp with adjustable illumination range according to the present invention; Figure 2 This is a second structural schematic diagram of one embodiment of an oil-resistant LED lamp with easily adjustable illumination range according to the present invention; Figure 3 This is a schematic diagram of the transmission mechanism of this utility model; Figure 4 This is a schematic diagram of the structure of the manual operation component of this utility model; Figure 5 This is a schematic diagram of the structure of the insertion rod and insertion hole of this utility model.

[0016] In the diagram: 1. Sealed lamp body; 2. Frame; 3. Groove; 4. Bearing seat one; 5. Bearing seat two; 6. Rotating shaft one; 7. Rotating shaft two; 8. Support plate; 9. Light shield; 10. Mounting base; 11. Transmission rod; 12. Driving bevel gear one; 13. Driving bevel gear two; 14. Driven bevel gear one; 15. Driven bevel gear two; 16. Bracket; 17. Bearing seat three; 18. Worm gear; 19. Knob; 20. Worm wheel; 21. Insert rod; 22. Insertion hole; 23. Expansion piece; 24. Annular groove; 25. Support plate; 26. Electromechanical frame; 27. Bearing seat four; 28. Drive motor; 29. ​​Lead screw; 30. Drive plate; 31. Reinforcing rib; 32. Guide rail; 33. Slider. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1 - Figure 5This utility model provides an embodiment of an oil-resistant LED lamp with adjustable illumination range, comprising a sealed lamp body 1 and a frame 2, the inner contour of which matches and covers the outer periphery of the sealed lamp body 1. Symmetrical axial slots 3 are formed at both ends of the frame 2. Bearing seat 1 4 and bearing seat 2 5 are provided on the inner wall of the slots 3. A rotating shaft 1 6 is rotatably connected to bearing seat 1 4 and extends axially to the outside of the frame 2. A rotating shaft 2 7 is rotatably connected to bearing seat 2 5 and extends axially to the outside of the frame 2. A transmission mechanism is provided between rotating shaft 1 6 and rotating shaft 2 7. A receiving plate 8 is fixedly connected to the outer wall of rotating shaft 1 6 and rotating shaft 2 7. A light-shielding plate 9 is detachably connected to the surface of the receiving plate 8. A manual operation component is provided on the side of the frame 2, and its transmission end is connected to the transmission mechanism. The manual operation component is driven by external operating force, which synchronously drives rotating shaft 6 and rotating shaft 7 to rotate around their own axes via a transmission mechanism. This, in turn, causes the receiving plate 8 and its installed light-shielding plate 9 to deflect. By changing the relative angle between the light-shielding plate 9 and the sealed lamp body 1, the beam coverage area is adjusted. The sealed lamp body 1, as the light-emitting component of the LED lamp, uses a high-strength, corrosion-resistant engineering plastic (such as polycarbonate PC) or aluminum alloy shell. Internally, it integrates LED chips, circuit boards, and heat dissipation structures. Its sealing design is achieved through rubber O-rings or silicone gaskets, which can effectively prevent oil, dust, and moisture from entering, ensuring that the internal electronic components work stably in harsh environments (such as kitchens and industrial workshops). The frame 2 is made of gold... Made of materials such as aluminum alloy 6061-T6 or high-strength plastics such as ABS, its inner contour is precisely machined to match the outer dimensions of the sealed lamp body 1, forming a covering structure. The frame 2 not only provides physical protection for the lamp body but also serves as a mounting base for other components. The surface of the frame 2 is treated with an oil-resistant coating (such as Teflon coating), which can effectively resist oil stains and facilitate cleaning and maintenance. Bearing housing 1 4 and bearing housing 2 5 are made of copper alloy or stainless steel. Bearing housing 1 4 supports rotating shaft 1 6, and bearing housing 2 5 supports rotating shaft 2 7. Rotating shaft 1 6 and rotating shaft 2 7 are made of stainless steel (such as 304 stainless steel) or high-strength aluminum alloy. The surfaces of rotating shaft 1 6 and rotating shaft 2 7 are blackened or chrome-plated to improve corrosion resistance. Transmission mechanism The manual operation components ensure synchronous drive of rotating shaft 6 and rotating shaft 7. The receiving plate 8 is made of aluminum alloy or engineering plastic, and the light shield 9 is made of opaque material (such as black PC board or aluminum alloy) with a matte finish to reduce reflection. By changing the relative angle between the light shield 9 and the sealed lamp body 1, the projection range of the beam can be precisely controlled, such as focusing the beam on the work surface or spreading it throughout the room. In addition to the oil-proof coating on the surface of the frame 2, the connection between the sealed lamp body 1 and the frame 2 also adopts a double-layer sealing structure, with an inner silicone sealing ring and an outer waterproof gasket to prevent oil stains from entering through the gaps. The bearing housing 4 and bearing housing 5 are filled with oil-resistant grease (such as lithium-based grease) to reduce friction and prevent oil stains from corroding the bearings.

[0019] Please see Figure 2 - Figure 3 A further solution based on this embodiment is as follows: The transmission mechanism includes a mounting base 10 disposed on the side end of the frame 2. A bearing is disposed inside the mounting base 10, and a transmission rod 11 is rotatably connected inside the bearing. One end of the transmission rod 11 is fixedly connected to the outer wall of a first active bevel gear 12, and the other end of the transmission rod 11 is fixedly connected to the outer wall of a second active bevel gear 13. The mounting base 10 is made of aluminum alloy and is connected to the frame 2 by bolts. A bearing is embedded inside the mounting base, and the inner diameter of the bearing is clearance-fitted with the outer diameter of the transmission rod 11 to ensure low-friction rotation of the transmission rod 11. The transmission rod 11 is made of stainless steel and its surface is blackened for corrosion resistance.

[0020] Please see Figure 2 - Figure 3 A further embodiment of this solution is as follows: the transmission mechanism further includes a driven bevel gear 14 disposed on the outer wall of the rotating shaft 1 6, a driven bevel gear 2 15 disposed on the outer wall of the rotating shaft 2 7, a driving bevel gear 12 meshing with the driven bevel gear 14, and a driving bevel gear 2 13 meshing with the driven bevel gear 2 15. Through the steering transmission of the transmission mechanism, the rotational torque of the manual operation component is transmitted to the rotating shaft 1 6 and the rotating shaft 2 7.

[0021] Please see Figure 2 and Figure 4 A further solution based on this embodiment is as follows: The manual operation component includes a bracket 16 and a bearing seat 17 disposed on the side end of the frame 2. A worm gear 18, which passes through the bracket 16, is rotatably connected inside the bearing seat 17. A knob 19 is fixedly installed at the end of the worm gear 18. A worm wheel 20 is provided on the outer wall of the transmission rod 11. The worm wheel 20 is meshed with the worm gear 18. The bracket 16 is an aluminum alloy structure and is fixed to the side end of the frame 2 by bolts. The surface is anodized. The bearing seat 17 is fitted with a bearing to bear the axial and radial loads of the worm gear 18. The transmission between the worm wheel 20 and the worm gear 18 has self-locking properties, which can ensure that the transmission rod 11 will not rotate arbitrarily.

[0022] Please see Figure 1 and Figure 5 A further solution based on this embodiment is as follows: the back of the light-shielding plate 9 is integrally provided with a plug rod 21, and the surface of the receiving plate 8 is provided with a plug hole 22 that is adapted to the plug rod 21. The plug rod 21 is inserted into the plug hole 22. After the plug rod 21 is inserted into the plug hole 22, the two form a mechanical connection, providing initial positioning and support for the light-shielding plate 9. This design allows the light-shielding plate 9 to be quickly disassembled and installed, and is convenient for cleaning or replacing light-shielding plates 9 of different specifications.

[0023] Please see Figure 1 and Figure 5A further solution based on this embodiment is as follows: a permanent magnet is provided on the contact surface between the insertion rod 21 and the insertion hole 22, and the contact surfaces of the insertion rod 21 and the insertion hole 22 are magnetically connected. The connection stability is enhanced by magnetic attraction force. The attraction force of the permanent magnet can prevent the light shield 9 from falling off under vibration or slight external force. At the same time, it allows the operator to overcome the magnetic attraction force by applying a certain external force to realize the manual disassembly of the light shield 9. This connection method does not require additional tools and is easy to operate.

[0024] Please see Figure 1 and Figure 5 A further solution based on this embodiment is as follows: the end of the insertion rod 21 is provided with a radial expansion member 23, and the inner wall of the insertion hole 22 is provided with an annular groove 24 at the corresponding position. When the insertion rod 21 is inserted, the expansion member 23 elastically deforms and engages with the groove. The radial expansion member 23 at the end of the insertion rod 21 is squeezed and elastically deformed when inserted into the insertion hole 22. After entering the annular groove 24 on the inner wall of the insertion hole 22, it recovers its deformation and forms a mechanical engagement with the groove. This design further enhances the connection strength between the insertion rod 21 and the insertion hole 22, preventing the light shield 9 from loosening under long-term use or large external force. At the same time, the elastic characteristics of the radial expansion member 23 allow the insertion rod 21 to self-adjust within a certain range, reducing the assembly accuracy requirements.

[0025] Please see Figure 1 and Figure 5A further solution based on this embodiment is as follows: A support plate 25 and an electromechanical frame 26 are fixedly connected to the surface of the top of the wall. A bearing seat 27 is installed on the surface of the support plate 25, and a drive motor 28 is installed on the surface of the electromechanical frame 26. A lead screw 29 connected to the output shaft of the drive motor 28 is rotatably connected inside the bearing seat 27. A drive plate 30 is provided on the threaded section of the lead screw 29. The lower end face of the drive plate 30 is fixedly connected to the upper end face of the frame 2. A reinforcing rib 31 connected to the top of the wall is fixedly connected to the side wall of the support plate 25. The support plate 25 is vertically fixed to the surface of the top of the wall by bolts, serving as a support base for the transmission of the lead screw 29. The bearing seat 27 is installed on the surface of the support plate 25, with bearings embedded inside, providing radial and axial dual support for the lead screw 29. The bearing seat 27 ensures that the lead screw 29 maintains low friction and low vibration when rotating, while also bearing the load of the drive plate. The axial load transmitted by 30 is fixed to the top surface of the wall by bolts to the electromechanical frame 26. The drive motor 28 is installed on its upper surface. The output shaft of the drive motor 28 is rigidly connected to the lead screw 29 through a coupling, which converts the rotational motion of the motor into the linear motion of the lead screw 29. The reinforcing ribs 31 are triangularly distributed. By increasing the contact area and rigid connection, the bending and torsional resistance of the support plate 25 is improved. The lead screw 29 is rotatably connected through the bearing seat 27. Its threaded section meshes with the nut pair embedded in the drive plate 30. When the drive motor 28 starts, the lead screw 29 rotates and drives the drive plate 30 to move axially. The lower end face of the drive plate 30 is fixed to the upper end face of the frame 2 by bolts, which converts the rotational motion of the lead screw 29 into the linear displacement of the frame 2, thereby realizing the adjustment of the position of the sealed lamp body 1 and thus the adjustment of the illumination range.

[0026] Please see Figure 1 and Figure 5 A further solution based on this embodiment is as follows: a guide rail 32 is also installed on the surface of the top of the wall, and a slider 33 is slidably connected to the guide rail 32. The lower end face of the slider 33 is fixed to the upper end face of the drive plate 30. The guide rail 32 is fixed to the surface of the top of the wall in parallel by bolts. Its length direction is consistent with the axial direction of the lead screw 29. The function of the guide rail 32 is to provide linear motion guidance for the drive plate 30 and eliminate the horizontal offset generated by the transmission of the lead screw 29. When the drive plate 30 moves, the slider 33 slides synchronously along the guide rail 32 to ensure that the drive plate 30 can only move along the axial direction of the lead screw 29 and ensure the smoothness of the movement.

[0027] In another embodiment based on the lead screw 29 transmission, other structures in the prior art can also be used, such as a linear motor. The advantage of a linear motor is that it is an electromagnetic drive device that directly converts electrical energy into linear motion. Its working principle is similar to an expanded version of a rotary motor. It consists of a stator (primary part) and a mover (secondary part). The interaction of electromagnetic fields generates thrust, causing the mover to move linearly along the guide rail 32. Since there is no intermediate transmission mechanism (such as lead screw 29, belt, etc.), the linear motor can achieve extremely high dynamic performance. In addition, the linear motor has no mechanical contact, avoiding the backlash, friction and wear problems in traditional transmissions, resulting in a longer lifespan and lower maintenance costs.

[0028] In another embodiment based on magnetic fixation, other structures in the prior art can also be used, such as spring pin buckles, which achieve one-way locking through elastic deformation, such as the "click" fixing design of mobile phone cases. The advantage is that disassembly and assembly do not require tools and are inexpensive.

[0029] Working principle: First, the installation operation of the light shield 9 is carried out. The insertion rod 21 on the back of the light shield 9 is aligned with the insertion hole 22 on the surface of the receiving plate 8 and inserted. During the insertion process, the radial expansion member 23 at its end is squeezed by the inner wall of the insertion hole 22 and undergoes elastic deformation. After entering the corresponding annular groove 24 on the inner wall of the insertion hole 22, it recovers its deformation and forms a mechanical engagement with the groove. At the same time, the permanent magnet set on the contact surface between the insertion rod 21 and the insertion hole 22 generates magnetic attraction force, which further enhances the connection stability and makes the light shield 9 firmly installed on the receiving plate 8. After the installation of the light-shielding plate 9 is completed, when it is necessary to adjust the lighting range, the operator rotates the knob 19 on the manual operation component on the side of the frame 2. The knob 19 drives the worm gear 18 fixed thereto to rotate in the bearing seat 17. Since the worm wheel 20 is meshed with the worm gear 18, the rotation of the worm gear 18 drives the worm wheel 20 on the transmission rod 11 to rotate, which in turn causes the transmission rod 11 to rotate in the bearing of the mounting seat 10. The active bevel gear 12 and the active bevel gear 23 fixed to the outer walls of both ends of the transmission rod 11 rotate accordingly. The active bevel gear 12 meshes with the driven bevel gear 14 on the outer wall of the rotating shaft 6, and the active bevel gear 23 meshes with the driven bevel gear 25 on the outer wall of the rotating shaft 7. Through this steering transmission, the rotational torque of the knob 19 is synchronously transmitted to the rotating shaft 6 and the rotating shaft 7, so that the two rotate around their own axes. When rotating shaft 6 and rotating shaft 7 rotate, they cause the receiving plate 8 fixed to their outer wall and the installed light shield 9 to deflect. By changing the relative angle between the light shield 9 and the sealed lamp body 1, the projection range of the beam can be precisely controlled. For example, by adjusting the light shield 9 to a suitable angle, the beam can be focused on the work surface to meet the local high-brightness lighting needs. Alternatively, the light shield 9 can be adjusted to another angle to diffuse the beam to the entire room and achieve large-area uniform lighting. Furthermore, when the position of the frame 2 needs to be adjusted, the drive motor 28 is started. The drive motor 28 drives the lead screw 29 to rotate within the bearing housing 27. Through threaded transmission, the drive plate 30 drives the frame 2 to move linearly, thereby realizing the adjustment of the position of the sealed lamp body 1 and thus the adjustment of the illumination range. In addition, when the drive plate 30 moves, the slider 33 slides synchronously along the guide rail 32 to ensure that the drive plate 30 can only move along the axial direction of the lead screw 29, thus ensuring the smoothness of the movement.

[0030] When it is necessary to remove the light shield 9 for cleaning or replacement, the operator applies a certain external force to overcome the magnetic attraction of the permanent magnet and pulls the plug 21 out of the socket 22.

[0031] 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. An oil-resistant LED lamp with easily adjustable illumination range, comprising a sealed lamp body (1), characterized in that: It also includes a frame (2), the inner contour of which matches and covers the outer periphery of the sealed lamp body (1). The frame (2) has symmetrical axial slots (3) at both ends. The inner wall of the slot (3) is provided with a bearing seat 1 (4) and a bearing seat 2 (5). A rotating shaft 1 (6) is rotatably connected inside the bearing seat 1 (4) and extends axially to the outside of the frame (2). A rotating shaft 2 (7) is rotatably connected inside the bearing seat 2 (5) and extends axially to the outside of the frame (2). A transmission mechanism is provided between the rotating shaft 1 (6) and the rotating shaft 2 (7). (7) has a support plate (8) fixed to its outer wall. The surface of the support plate (8) is detachably connected to a light shield (9). The side of the frame (2) is provided with a manual operation component. Its transmission end is connected to the transmission mechanism. The manual operation component is driven by external operating force. The transmission mechanism synchronously drives the first rotating shaft (6) and the second rotating shaft (7) to rotate around their own axis, thereby linking the support plate (8) and the light shield (9) installed thereon to deflect. The beam coverage area is adjusted by changing the relative angle between the light shield (9) and the sealed lamp body (1).

2. The oil-resistant LED lamp with easily adjustable illumination range according to claim 1, characterized in that: The transmission mechanism includes a mounting base (10) set on the side end of the frame (2), a bearing is provided in the mounting base (10), a transmission rod (11) is rotatably connected in the bearing, a first active bevel gear (12) is fixed to the outer wall of one end of the transmission rod (11), and a second active bevel gear (13) is fixed to the outer wall of the other end of the transmission rod (11).

3. An oil-resistant LED lamp with easily adjustable illumination range according to claim 2, characterized in that: The transmission mechanism also includes a driven bevel gear 1 (14) disposed on the outer wall of the rotating shaft 1 (6), a driven bevel gear 2 (15) disposed on the outer wall of the rotating shaft 2 (7), a driving bevel gear 1 (12) meshing with the driven bevel gear 1 (14), and a driving bevel gear 2 (13) meshing with the driven bevel gear 2 (15).

4. An oil-resistant LED lamp with easily adjustable illumination range according to claim 3, characterized in that: The manual operation component includes a bracket (16) and a bearing seat three (17) set on the side end of the frame (2). A worm (18) that passes through the bracket (16) is rotatably connected inside the bearing seat three (17). A knob (19) is fixed at the end of the worm (18). A worm wheel (20) is provided on the outer wall of the transmission rod (11). The worm wheel (20) meshes with the worm (18).

5. An oil-resistant LED lamp with easily adjustable illumination range according to claim 4, characterized in that: The back of the light shield (9) is integrally provided with a plug (21), and the surface of the receiving plate (8) is provided with a plug hole (22) that is compatible with the plug (21). The plug (21) is inserted into the plug hole (22).

6. An oil-resistant LED lamp with easily adjustable illumination range according to claim 5, characterized in that: The contact surfaces of the insertion rod (21) and the insertion hole (22) are provided with permanent magnets, and the contact surfaces of the insertion rod (21) and the insertion hole (22) are magnetically connected.

7. An oil-resistant LED lamp with easily adjustable illumination range according to claim 6, characterized in that: The end of the insertion rod (21) is provided with a radial expansion member (23), and the inner wall of the insertion hole (22) is provided with an annular groove (24) at the corresponding position. When the insertion rod (21) is inserted, the expansion member (23) elastically deforms and engages with the groove.

8. An oil-resistant LED lamp with easily adjustable illumination range according to claim 7, characterized in that: A support plate (25) and an electromechanical frame (26) are fixedly connected to the surface of the top of the wall. A bearing seat four (27) is installed on the surface of the support plate (25). A drive motor (28) is installed on the surface of the electromechanical frame (26). A lead screw (29) connected to the output shaft of the drive motor (28) is rotatably connected inside the bearing seat four (27). A drive plate (30) is provided on the threaded section of the lead screw (29). The lower end face of the drive plate (30) is fixedly connected to the upper end face of the frame (2). A reinforcing rib plate (31) connected to the top of the wall is fixedly connected to the side wall of the support plate (25).

9. An oil-resistant LED lamp with easily adjustable illumination range according to claim 8, characterized in that: A guide rail (32) is also installed on the surface of the top of the wall. A slider (33) is slidably connected on the guide rail (32). The lower end face of the slider (33) is fixedly connected to the upper end face of the drive plate (30).

Images