Electromagnet with internal buffering function
By designing a buffer device and a guide device inside the electromagnet, the problem of insufficient buffering performance of the electromagnet push rod module was solved, thereby improving the protective performance of the electromagnet and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YOUTECH ELECTROMAGNETIC TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-26
AI Technical Summary
When using existing electromagnets, the buffering performance of the push rod module is insufficient, which leads to damage to the push rod or electromagnet and reduces its service life.
An electromagnet with internal buffering function was designed, including a support base, an electromagnet housing, a buffer device, and a guide device. The buffer device provides elastic buffering and combines it with rigid limiting to prevent rigid collisions and improve protection performance.
It effectively prevents rigid collisions between the electromagnet and the push rod, extends the service life of the electromagnet, and improves the buffer protection performance.
Smart Images

Figure CN224287904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnet equipment technology, specifically to an electromagnet with an internal buffer function. Background Technology
[0002] An electromagnet is a device that generates a magnetic field through an electric current. Its functions and applications are widely used in industry, science and technology and daily life. An electromagnet push rod is an actuator that uses the working characteristics of an electromagnet to realize the linear reciprocating motion of a push rod. The electromagnet can provide sufficient magnetic force to drive the push rod to perform guided displacement.
[0003] However, existing electromagnets, such as the aforementioned push rod module, have insufficient buffering performance for both the electromagnet and the push rod, which can easily cause damage to the push rod or the electromagnet, thereby reducing the electromagnet's service life. Therefore, there is an urgent need for an electromagnet with internal buffering function to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of this invention is to provide an electromagnet with an internal buffer function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an electromagnet with an internal buffer function, comprising a support guide, wherein a limit slot is formed on the inner end face of the support guide near the front, and positioning plates are symmetrically arranged at the bottom of the side end face of the support guide.
[0006] An electromagnet housing is fixedly fastened to the inner end face of the support guide via the limiting slot, and a coil is wound around the outside of the limiting slot.
[0007] The buffer device consists of two sets, which are respectively located at the front and rear of the support guide. The buffer device is used for buffering and protection.
[0008] A guiding device is slidably disposed on the inner end face of the support guide seat via the buffer device; the guiding device is used for support and guidance.
[0009] Preferably, the guiding device includes a guide push rod, a protective chuck is provided at the front end of the guide push rod, and a return spring is provided at the rear end face of the protective chuck. An iron core is provided at the rear end face of the guide push rod, and a threaded guide shaft is fixedly provided at the center of the rear end face of the iron core. A threaded rotating plate is threadedly connected to the outer end face of the threaded guide shaft.
[0010] Preferably, the buffer device includes a sealing plate, and four sets of support brackets are equidistantly arranged on the inner end face of the sealing plate. Buffer guide shafts are symmetrically arranged on the front of the side end face of the support brackets, and buffer spring shafts are symmetrically arranged on the rear of the side end face of the support brackets.
[0011] Preferably, the protective chuck and the threaded rotating plate are both connected to the outside of the buffer spring shaft. The buffer spring shaft can provide sufficient buffer protection when the protective chuck and the threaded rotating plate are subjected to force, preventing the protective chuck and the threaded rotating plate from rigidly colliding with the sealing plate. At the same time, it can also provide buffer protection for the iron core, improving the overall protection performance of the electromagnet.
[0012] Preferably, the length of the buffer guide shaft is greater than the limit contraction length of the buffer spring shaft, and the length of the buffer guide shaft is less than the extension length of the buffer spring shaft. The buffer guide shaft can rigidly limit the protective chuck and the threaded rotating plate, thereby improving the stability of the secondary limiting of the protective chuck and the threaded rotating plate.
[0013] Preferably, the reset spring is fixedly connected to the sealing plate, and the guide push rod is slidably connected to the sealing plate. The reset spring can provide sufficient elastic force for the reset of the guide push rod, thereby improving the stability of the reset after the guide push rod is extended. At the same time, the sealing plate can provide axial limiting stability for the guide push rod, thereby improving the stability of the guide push rod operation.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. By setting up a buffer device, this utility model provides buffer protection for the electromagnet. The two sets of buffer spring shafts at the front and rear can first provide elastic buffering for the protective chuck, threaded rotating plate and iron core, preventing the protective chuck, threaded rotating plate and iron core from rigidly contacting the sealing plate or electromagnet housing, thereby improving the overall buffer protection performance of the electromagnet. At the same time, the buffer guide shaft can rigidly limit the protective chuck, threaded rotating plate and iron core after the buffer spring shaft provides elastic buffering, preventing the protective chuck, threaded rotating plate and iron core from displacing beyond the limit. The dual protection structure can effectively improve the internal and external buffer protection performance of the electromagnet. Attached Figure Description
[0016] Figure 1 This is an exploded view of the main body of this utility model;
[0017] Figure 2 This is a schematic diagram of the main structure of the present utility model;
[0018] Figure 3 This is a schematic diagram of the guiding device of this utility model;
[0019] Figure 4This is a schematic diagram of the buffer device of this utility model.
[0020] In the diagram: 1-Electromagnet housing, 2-Guide device, 3-Buffer device, 4-Limiting slot, 5-Support guide seat, 6-Positioning plate, 7-Coil, 21-Protective chuck, 22-Reset spring, 23-Guide push rod, 24-Threaded rotating plate, 25-Threaded guide shaft, 26-Iron core, 31-Sealing plate, 32-Support seat, 33-Buffer guide shaft, 34-Buffer spring shaft. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 One embodiment of this utility model provides an electromagnet with an internal buffer function, including a support guide 5. A limit slot 4 is formed on the inner end face of the support guide 5 near the front, and positioning plates 6 are symmetrically arranged at the bottom of the side end face of the support guide 5.
[0023] Electromagnet housing 1 is fixedly attached to the inner end face of support guide 5 through limiting slot 4, and a coil 7 is wound around the outside of limiting slot 4.
[0024] The buffer device 3 has two sets, and the two sets of buffer devices 3 are respectively set at the front and rear of the support guide 5. The buffer device 3 is used for buffering and protection.
[0025] The guide device 2 is slidably disposed on the inner end face of the support guide seat 5 via the buffer device 3; the guide device 2 is used for support and guidance.
[0026] The guide device 2 includes a guide push rod 23. A protective chuck 21 is provided at the front end of the guide push rod 23, and a return spring 22 is provided at the rear end face of the protective chuck 21. An iron core 26 is provided at the rear end face of the guide push rod 23, and a threaded guide shaft 25 is fixedly provided at the center of the rear end face of the iron core 26. A threaded rotating plate 24 is threadedly connected to the outer end face of the threaded guide shaft 25.
[0027] The buffer device 3 includes a sealing plate 31. Four sets of support seats 32 are equidistantly arranged on the inner end face of the sealing plate 31. Buffer guide shafts 33 are symmetrically arranged on the front side end face of the support seats 32, and buffer spring shafts 34 are symmetrically arranged on the rear side end face of the support seats 32.
[0028] The protective chuck 21 and the threaded rotating plate 24 are both fitted to the outside of the buffer spring shaft 34. The buffer spring shaft 34 can provide sufficient buffer protection when the protective chuck 21 and the threaded rotating plate 24 are subjected to force, preventing the protective chuck 21 and the threaded rotating plate 24 from rigidly colliding with the sealing plate 31. At the same time, it can also provide buffer protection for the iron core 26, improving the overall protection performance of the electromagnet.
[0029] The length of the buffer guide shaft 33 is greater than the limit contraction length of the buffer spring shaft 34, and the length of the buffer guide shaft 33 is less than the extension length of the buffer spring shaft 34. The buffer guide shaft 33 can rigidly limit the protective chuck 21 and the threaded rotating plate 24, which can improve the stability of the secondary limit of the protective chuck 21 and the threaded rotating plate 24.
[0030] The reset spring 22 is fixedly connected to the sealing plate 31, and the guide push rod 23 is slidably connected to the sealing plate 31. The reset spring 22 can provide sufficient elastic force for the reset of the guide push rod 23, thereby improving the stability of the reset after the guide push rod 23 is pushed out. At the same time, the sealing plate 31 can provide axial limiting stability for the guide push rod 23, thereby improving the stability of the guide push rod 23 operation.
[0031] Working principle: During use, the operator can fix the support guide 5 in a suitable location using the positioning plate 6. Then, during operation, the coil 7 can be energized. At this time, the coil 7 can generate magnetic force to attract the iron core 26. Subsequently, the iron core 26 can drive the guide push rod 23 to move forward, thereby pushing external materials or workpieces. When the iron core 26 moves forward, the four sets of buffer spring shafts 34 can initially limit the movement of the threaded rotating plate 24 at the rear. At the same time, the four sets of buffer guide shafts 33 can provide secondary limit for the threaded rotating plate 24 to prevent the iron core 26 from colliding with the electromagnet housing 1 and the coil 7. When the power is cut off, the reset spring 22 can drive the guide push rod 23 to reset. At this time, the buffer spring shaft 34 and the buffer guide shaft 33 can synchronously buffer and limit the protective chuck 21 and the iron core 26, improving the protective function of the equipment. The user can also adjust the guide length of the guide push rod 23 by rotating the threaded rotating plate 24.
[0032] 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 electromagnet with an internal buffer function, comprising a support guide (5), wherein a limiting groove (4) is formed on the inner end face of the support guide (5) near the front, and positioning plates (6) are symmetrically arranged at the bottom of the side end face of the support guide (5), characterized in that: Electromagnet housing (1), the electromagnet housing (1) is fixedly attached to the inner end face of the support guide (5) through the limiting slot (4), and a coil (7) is wound around the outside of the limiting slot (4). The buffer device (3) is provided in two sets, and the two sets of the buffer device (3) are respectively located at the front and rear of the support guide (5). The buffer device (3) is used for buffering and protection. The guide device (2) is slidably disposed on the inner end face of the support guide seat (5) through the buffer device (3); the guide device (2) is used for support and guidance.
2. The electromagnet having a buffer function inside according to claim 1, characterized in that: The guiding device (2) includes a guide push rod (23), a protective chuck (21) is provided at the front end of the guide push rod (23), and a return spring (22) is provided at the rear end face of the protective chuck (21). An iron core (26) is provided at the rear end face of the guide push rod (23), and a threaded guide shaft (25) is fixedly provided at the center of the rear end face of the iron core (26). A threaded rotating plate (24) is threadedly connected to the outer end face of the threaded guide shaft (25).
3. The electromagnet having a buffer function inside according to claim 2, characterized in that: The buffer device (3) includes a sealing plate (31), and four sets of support seats (32) are equidistantly arranged on the inner end face of the sealing plate (31). Buffer guide shafts (33) are symmetrically arranged on the front side end face of the support seats (32), and buffer spring shafts (34) are symmetrically arranged on the rear side end face of the support seats (32).
4. The electromagnet having a buffer function inside according to claim 3, characterized in that: Both the protective chuck (21) and the threaded rotating plate (24) are fitted and connected to the outside of the buffer spring shaft (34).
5. The electromagnet having a buffer function inside according to claim 3, characterized in that: The length of the buffer guide shaft (33) is greater than the maximum contraction length of the buffer spring shaft (34), and the length of the buffer guide shaft (33) is less than the extension length of the buffer spring shaft (34).
6. An electromagnet with an internal buffer function according to claim 3, characterized in that: The reset spring (22) is fixedly connected to the sealing plate (31), and the guide push rod (23) is slidably connected to the sealing plate (31).