Silent jacking device based on electromagnetic force
The silent top device, designed with like poles repelling each other, utilizes neodymium magnets and nylon materials to achieve movement without hard collisions, reducing noise and solving the problem of high noise in traditional top devices, thus achieving a low-noise effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 陈锐
- Filing Date
- 2026-03-23
- Publication Date
- 2026-05-08
AI Technical Summary
The existing top-mounting device generates significant noise when using electromagnets, cylinders, and electric push rods, which cannot meet the requirements for a low-noise environment.
The silent top device is designed based on the principle of like poles repulsion of magnets. It uses a combination of neodymium magnets and nylon materials to achieve movement without hard collisions through the repulsive force of the magnets, thereby reducing noise.
The noise level was controlled to below 40 decibels, far lower than the 70 decibels of traditional devices, achieving a silent effect.
Smart Images
Figure CN121990486A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of equipment, and more particularly to a silent top-mounted device based on electromagnetic force. Background Technology
[0002] Lifting devices are frequently used in automated equipment. Conventional lifting devices, such as electromagnets, cylinders, and electric actuators, generate around 70 decibels of noise. In some specialized fields (such as sanatoriums and Buddhist ceremonies), low-noise operation is required. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a silent top-mounted device based on electromagnetic force.
[0004] To address the aforementioned technical problems, the present invention provides the following technical solution.
[0005] The present invention discloses a silent top-mounting device based on electromagnetic force, comprising: a base plate (1), a first magnet (2), a DC suction cup type annular electromagnet (3), a second magnet (4), a top rod (5), and a guide tube (6); The base plate (1) is provided with a through hole (11), which is fixed with a bolt to the toothed hole (32) provided with the DC suction cup type annular electromagnet (3); One end of the conduit (6) is empty, and the other end is a semi-empty structure with a hole (61). The outer wall of the empty end of the conduit (6) is adapted to the inner wall of the central hole (31) of the DC suction cup type annular electromagnet (3) and fixed with glue. The second magnet (4) has a through hole (41), which is adapted to one end of the top rod (5) and fixed with glue, and is placed in the conduit (6). The other end of the top rod (5) protrudes from the end of the conduit (6) with the hole (61). The first magnet (2) is placed in the middle of the central hole (31) of the DC chuck type annular electromagnet (3) and glued to the base plate (1). The first magnet (2) is below the second magnet (4) and in a repulsive state. The height at which the first magnet (2) is fixed must satisfy that the second magnet (4) is higher than the upper plane of the DC chuck type annular electromagnet (3) when the DC chuck type annular electromagnet (3) is not energized.
[0006] Furthermore, the first magnet (2) and the second magnet (4) are neodymium magnets.
[0007] Furthermore, the push rod (5) and the conduit (6) are made of nylon material.
[0008] The advantage of this invention is that it solves the noise source of traditional electromagnets colliding with each other by using the principle of like poles repelling each other. The actual noise can be controlled below 40 decibels, which is far lower than the 70 decibel noise of existing top-mounted devices. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of the present invention.
[0010] Figure 2 This is an exploded view of the structural components of the present invention.
[0011] Figure 3 This is a schematic diagram of the base plate (1) of the present invention.
[0012] Figure 4 This is a schematic diagram of the second magnet (4) of the present invention.
[0013] Figure 5 This is a schematic diagram of the DC chuck-type ring electromagnet (3) of the present invention.
[0014] Figure 6 This is a schematic diagram showing the fixed connection between the second magnet (4) and the top rod (5) of the present invention.
[0015] Figure 7 This is a schematic diagram of the hollow end of the catheter (6) of the present invention. Detailed Implementation
[0016] In the description of a silent top device based on electromagnetic force that relates to the present invention, the terms "upper" and "lower" refer to the positional relationship when the base plate (1) is placed horizontally and the conduit (6) is placed vertically.
[0017] Reference Figures 1-7 The present invention provides a silent top-mounting device based on electromagnetic force, comprising: a base plate (1), a first magnet (2), a DC suction cup type annular electromagnet (3), a second magnet (4), a top rod (5), and a guide tube (6); The base plate (1) is provided with a through hole (11), which is fixed with the threaded hole (32) of the DC suction cup type annular electromagnet (3) by bolts. The base plate (1) serves as the bottom sealing and fixing function for the present invention. One end of the conduit (6) is empty, and the other end is a semi-empty structure with a hole (61). The outer wall of the empty end of the conduit (6) is adapted to the inner wall of the central hole (31) of the DC suction cup type annular electromagnet (3) and fixed with glue. The conduit (6) restricts the movement of the second magnet (4), allowing only the second magnet (4) to move up and down. The second magnet (4) has a through hole (41), which is adapted to one end of the top rod (5) and fixed with glue. It is placed in the conduit (6), and the other end of the top rod (5) protrudes from the end of the conduit (6) with a hole (61). The second magnet (4) provides power to the top rod (5). The first magnet (2) is placed in the middle of the central hole (31) of the DC chuck type annular electromagnet (3) and glued to the base plate (1). The first magnet (2) is below the second magnet (4) and in a repulsive state. The height at which the first magnet (2) is fixed must satisfy that the second magnet (4) is higher than the upper plane of the DC chuck type annular electromagnet (3) when the DC chuck type annular electromagnet (3) is not energized.
[0018] Preferably, the first magnet (2) and the second magnet (4) are neodymium magnets.
[0019] Preferably, the push rod (5) and the guide tube (6) are made of nylon.
[0020] When the DC chuck-type annular electromagnet (3) is de-energized, the downward gravity of the second magnet (4) and the top rod (5) and the downward attraction of the second magnet (4) on the DC chuck-type annular electromagnet (3) are balanced by the upward repulsion of the second magnet (4) by the first magnet (2), so that the bottom of the second magnet (4) is higher than the upper plane of the DC chuck-type annular electromagnet (3); When the DC chuck-type ring electromagnet (3) is energized, the combined magnetic force of the DC chuck-type ring electromagnet (3) exerts an upward repulsive force on the second magnet (4) (if the attraction force increases when energized, simply reverse the power cord of the DC ring electromagnet), instantly changing from a downward attraction force to an upward repulsive force, pushing the second magnet (4) upward, and exerting an upward pushing effect through the push rod (5); When the power is cut off again, the second magnet (4) and the top rod (5) move downward due to gravity. Even if the second magnet (4) moves downward and exceeds the power-off stationary position, the repulsive force of the magnet increases significantly as the distance shortens, so the second magnet (4) does not touch the first magnet (2). There were no hard collisions during the entire process, thus achieving the silent effect of the top device.
[0021] The embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. All equivalent modifications made to the invention by those skilled in the art fall within the scope of the claims of this application.
Claims
1. A silent top-mounted device based on electromagnetic force, characterized in that... include: Base plate (1), first magnet (2), DC chuck type ring electromagnet (3), second magnet (4), push rod (5), guide tube (6); The base plate (1) is provided with a through hole (11), which is fixed with a bolt to the toothed hole (32) provided with the DC suction cup type annular electromagnet (3); One end of the conduit (6) is empty, and the other end is a semi-empty structure with a hole (61). The outer wall of the empty end of the conduit (6) is adapted to the inner wall of the central hole (31) of the DC suction cup type annular electromagnet (3) and fixed with glue. The second magnet (4) has a through hole (41), which is adapted to one end of the top rod (5) and fixed with glue, and is placed in the conduit (6). The other end of the top rod (5) protrudes from the end of the conduit (6) with the hole (61). The first magnet (2) is placed in the middle of the central hole (31) of the DC chuck type annular electromagnet (3) and glued to the base plate (1). The first magnet (2) is below the second magnet (4) and in a repulsive state. The height at which the first magnet (2) is fixed must satisfy that the second magnet (4) is higher than the upper plane of the DC chuck type annular electromagnet (3) when the DC chuck type annular electromagnet (3) is not energized.
2. The silent top-mounted device based on electromagnetic force as described in claim 1, characterized in that... The first magnet (2) and the second magnet (4) are neodymium magnets.
3. The silent top-mounted device based on electromagnetic force as described in claim 1, characterized in that... The top rod (5) and the conduit (6) are made of nylon.