电动升降灯
By adopting a multi-level limit structure in the electric lifting lamp, the problem of inaccurate limit switching caused by a single limit switch assembly is solved, ensuring that the lifting lamp body stops accurately at different positions, thus improving safety and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU XIDUN OPTOELECTRONICS CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional electric lifting lights rely on a single limit switch assembly. Wear and tear on the mechanical structure or oxidation of the electrical contacts can lead to inaccurate limit positions, posing a safety hazard.
At least three limiting structures are used to form a multi-level protection mechanism. Each limiting structure is evenly distributed in the upper annular shell to ensure that the lifting lamp body is restricted at different positions, avoiding loss of control caused by the failure of a single limiting structure.
This effectively avoids loss of control of the lifting lamp body due to failure of a single limit structure, thus improving the safety and reliability of electric lifting lamps.
Smart Images
Figure CN224516690U_ABST
Abstract
Claims
1. An electric lift lamp characterized by comprising: It includes a lighting fixture structure, a rope winding structure, and at least three limiting structures. The limiting structures include limit switch assemblies and suspension wire drive assemblies, with the limit switch assemblies connected to the suspension wire drive assemblies. The lamp structure includes a base, a fixed lamp body, a lifting lamp body, and a lamp body connector. One end of the lamp body connector is connected to the base, and the other end is connected to the fixed lamp body. The fixed lamp body includes an upper annular shell and a lower disc shell. The upper annular shell is connected to the lower disc shell. The rope winding structure is located at the geometric center of the lower disc shell. The cross-section of the upper annular shell is larger than the cross-section of the lower disc shell. The limiting structure is fixed to the upper annular shell. The upper annular shell has a suspension wire through hole and a switch through hole. The rope winding structure includes a rope winding assembly and a suspension rope. The first end of the suspension rope is connected to the interior of the rope winding assembly. The suspension rope passes through the interior of the suspension wire transmission assembly. The second end of the suspension rope passes through the suspension wire through hole and is connected to the lifting lamp body. The limit switch assembly passes through the switch through hole. The limit switch assembly is used to control the rope winding assembly to stop working when it contacts the lifting lamp body. A portion of the limit switch assembly abuts against the lifting lamp body. Each of the limit structures is connected to the rope winding structure via a suspension rope.
2. The motorized lift light of claim 1, wherein, The suspension cable transmission assembly includes a winding shaft, a winding pulley, and a transmission base body. The transmission base body is fixed to the upper annular shell. The transmission base body has a suspension cable through groove, a limiting through hole, and a pulley receiving cavity. The pulley receiving cavity is connected to the suspension cable through hole and the suspension cable through groove. The limiting through hole is located on the side wall of the transmission base body. The winding pulley is located in the pulley receiving cavity and has a rotation through hole. The winding shaft passes through the rotation through hole and the limiting through hole. The suspension cable is slidably connected to the winding pulley.
3. The motorized lift light of claim 2, wherein, The suspension wire transmission assembly further includes a first support platform and a second support platform. The first support platform has a first U-shaped rotating through groove, and the second support platform has a second U-shaped rotating through groove. The winding shaft is rotatably connected in the first U-shaped rotating through groove and the second U-shaped rotating through groove, respectively. The first support platform and the second support platform are respectively connected to both sides of the transmission base body.
4. The motorized lift light of claim 3, wherein, The winding shaft has a first limiting boss and a second limiting boss, which are respectively disposed at both ends of the winding shaft. The first limiting boss is disposed adjacent to the outer side of the first support platform, and the second limiting boss is disposed adjacent to the outer side of the second support platform.
5. The motorized lift light of claim 2, wherein, The winding pulley has a rotating groove, and the suspension rope is wound around the rotating groove.
6. The motorized lift light of claim 1, wherein, The limit switch assembly includes a switch housing subassembly and a travel switch subassembly. The switch housing subassembly includes a housing base and a switch limiting member. The switch limiting member has a first receiving groove, and the housing base has a second receiving groove. The first receiving groove is connected to the second receiving groove, and a portion of the travel switch subassembly is housed in the second receiving groove.
7. The motorized lift light of claim 6, wherein, The switch housing subassembly further includes a first snap-fit component and a second snap-fit component. The housing base has a first snap-fit groove and a second snap-fit groove. The first snap-fit component and the second snap-fit component are symmetrically connected to both sides of the switch limiting component. The first snap-fit component snaps into the first snap-fit groove, and the second snap-fit component snaps into the second snap-fit groove.
8. The motorized lift light of claim 6, wherein, The limit switch sub-assembly includes a sensor and a contact. The sensor is connected to the contact and is disposed in the first receiving groove. One end of the contact abuts against the inner wall of the second receiving groove, and the other end of the contact passes through the second receiving groove.
9. The motorized lift light of claim 2, wherein, The transmission seat body has a first fixed through hole and a second fixed through hole. The fixed lamp body has a first fixed boss and a second fixed boss. The first fixed boss has a third fixed through hole, and the second fixed boss has a fourth fixed through hole. The first fixed through hole is connected to the third fixed through hole, and the second fixed through hole is connected to the fourth fixed through hole. The first fixed through hole and the third fixed through hole are used to pass through fasteners. The second fixed through hole and the fourth fixed through hole are used to pass through fasteners.
10. The motorized lift light of claim 1, wherein, The limiting structure also includes a positioning component, which includes a positioning base and a positioning transmission wheel. The positioning base has a transmission groove, and the positioning transmission wheel is rotatably connected to the transmission groove. The suspension rope passes through the transmission groove and is slidably connected to the positioning transmission wheel.