Universal magnetic suspension damping foot pad

Abstract

The utility model relates to the technical field of damping foot pads, in particular to a universal magnetic suspension damping foot pad which comprises a fixing seat, a first permanent magnet is fixedly connected to the top of the fixing seat, a buffering piece is fixedly connected to the interior of the fixing seat, and a supporting seat is slidably connected to the outer side of the top of a guide sliding rod. And the inner side of the bottom of the supporting seat is fixedly connected with a second permanent magnet. According to the general magnetic suspension damping foot pad, the fixing base is placed on the ground, the supporting base is clamped and fixed to the bottom of high-frequency working equipment, based on the principle that like poles of magnets repel, a gap always exists between the fixing base and the supporting base, and the equipment is supported by the supporting base in a suspended mode and is actively isolated from the ground so that the damping effect can be achieved; as the equipment is supported by the magnetic suspension effect and is in a balanced suspension state, the amplitude frequency generated by high-frequency work of the equipment cannot be transmitted to the ground through contact, and the noise problem generated by vibration contact transmission is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shock-absorbing foot pads, in particular to a universal magnetic suspension shock-absorbing foot pad. Background Art

[0002] As the name suggests, foot pads can be installed on the bottom or outside of equipment with a certain volume and shape to provide support or anti-fall protection. They are generally round or square gasket structures. The most common foot pads are composed of rubber or damping spring structures and have a certain buffering elasticity. Especially for equipment such as refrigerators, air conditioners and washing machines, the foot pad structure can provide vibration reduction and anti-fall protection when they fall or are working at high frequency.

[0003] After searching, a utility model patent with Chinese patent publication number CN220706312U discloses a shock-absorbing silicone foot pad. The shock-absorbing silicone foot pad in the utility model patent is to set a silicone layer on the outer layer as the first buffer protection structure, and then set a damping rubber pad, a spring and a shock-absorbing rod structure inside the silicone layer. At this time, the spring and the shock-absorbing rod will rise upward due to the elastic effect, which plays a shock-absorbing role on the force of the silicone layer.

[0004] However, the damping rubber pad and the silicone layer used in the shock-absorbing silicone foot pad are both contact-type shock-absorbing structures, which suppress vibration by increasing the stiffness and damping of the shock-absorbing system, or adding a passive dynamic vibration absorption structure to absorb vibration. This is a passive vibration reduction method, and most of the passive vibration reduction structures in the prior art have the following disadvantages:

[0005] 1) Passive vibration reduction through structures such as vibration-damping pads does not produce ideal vibration reduction effects; 2) The use of damping materials for contact vibration reduction is relatively expensive, and there is still contact vibration transmission, which results in certain noise problems when the vibration is transmitted to the ground through the vibration source.

[0006] Therefore, in order to solve the technical problem that the passive vibration reduction structure has a poor vibration reduction effect and contact vibration transmission generates certain noise, a universal magnetic suspension shock-absorbing foot pad is proposed. Utility Model Content

[0007] In view of the shortcomings of the prior art, the utility model provides a universal magnetic levitation shock-absorbing foot pad, which adopts passive magnetic levitation technology to separate the vibrating body from the ground to improve the vibration reduction effect and reduce vibration noise. It solves the problem that the shock-absorbing silicone foot pad in the above-mentioned background technology uses damping rubber pads and silicone layers as passive vibration reduction materials, which is prone to poor vibration reduction effect and noise during contact vibration transmission.

[0008] To achieve the above object, the utility model provides the following technical solution: a general magnetic levitation shock-absorbing foot pad, including a fixed seat, and a magnetic levitation shock-absorbing structure is arranged on the top of the fixed seat;

[0009] The magnetic levitation shock-absorbing structure includes a guiding slide bar fixed to the top of the fixed seat, a first permanent magnet fixedly connected to the top of the fixed seat, a buffer member fixedly connected to the inside of the fixed seat, a support seat slidably connected to the outer side of the top of the guiding slide bar, a guiding slide sleeve fixedly connected to the inside of the support seat, and a second permanent magnet fixedly connected to the inner side of the bottom of the support seat.

[0010] Furthermore, the fixed seat is of a frustum of a pyramid structure, and a first annular groove is opened at the top of the fixed seat. A first sealing spacer made of plastic is clamped at the top of the first annular groove. The first permanent magnet is located inside the first annular groove, and a first moisture-absorbing cotton layer is laid on the inner side of the first annular groove.

[0011] Furthermore, through holes are opened at the four corners of the outer side of the fixed seat. The buffer member includes telescopic rods respectively fixedly connected to the inside of the four through holes, and the outer sides of the four telescopic rods are all slidably connected with cylinder barrels.

[0012] Furthermore, buffer springs are fixedly connected to the inner bottom walls of the four cylinder barrels, the tops of the four buffer springs are all fixed to the bottoms of the telescopic rods, a vertical groove is opened inside the support seat, and the top of the guiding slide bar penetrates through the vertical groove and extends to the outer side of the top of the support seat.

[0013] Furthermore, a second annular groove is opened at the bottom of the support seat. A second sealing spacer made of plastic is clamped at the bottom of the second annular groove. The second permanent magnet is located inside the second annular groove, and a second moisture-absorbing cotton layer is laid on the inner side of the second annular groove. The opposite sides of the first permanent magnet and the second permanent magnet are of the same-sex magnetic pole structure.

[0014] Furthermore, the guiding slide sleeve and the vertical groove are of a through structure, and a number of four ball layers distributed in an annular array are rotatably connected to the inside of the guiding slide sleeve. Each ball layer is in rolling contact with the outer side of the guiding slide bar.

[0015] Advantageous Effects

[0016] Compared with the prior art, the technical solution of the present application has the following advantageous effects:

[0017] 1. The general magnetic levitation shock-absorbing foot pad is placed on the ground through the fixed seat and the buffer structure. The support seat is clamped and fixed at the bottom of high-frequency working equipment such as washing machines or air conditioners. At this time, a first permanent magnet and a second permanent magnet with the same magnetic poles are arranged between the fixed seat and the support seat. Based on the principle of repulsion between like magnetic poles and attraction between opposite magnetic poles, there is always a gap between the fixed seat and the support seat, so that the equipment is supported by the support seat in a suspended state, and the equipment is actively isolated from the ground to achieve the shock-absorbing effect.

[0018] 2. For the general magnetic levitation shock-absorbing foot pad, since the support seat is clamped and supported at the bottom of the equipment and is supported by the magnetic levitation effect at this time, the equipment is in a balanced suspended state between the equipment and the ground. At this time, the amplitude frequency generated by the high-frequency operation of the equipment cannot be transmitted to the ground through contact, thus greatly reducing the noise problem caused by vibration contact transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional perspective view of the shock-absorbing foot pad structure of the present utility model;

[0020] Figure 2 is Figure 1 a cross-sectional view from a perspective;

[0021] Figure 3 is Figure 1 a top view of the fixed seat structure in a perspective;

[0022] Figure 4 is Figure 1 a bottom view of the support seat structure in a perspective;

[0023] Figure 5 is Figure 2 a top view of the guiding sliding sleeve structure in a perspective.

[0024] In the figure: 1. Fixed seat; 2. Suspension shock-absorbing structure; 201. Guiding sliding rod; 202. First permanent magnet; 203. Buffer member; 2031. Telescopic rod; 2032. Cylindrical barrel; 2033. Buffer spring; 204. Support seat; 205. Guiding sliding sleeve; 206. Second permanent magnet; 3. First sealing spacer; 4. First moisture-absorbing cotton layer; 5. Second sealing spacer; 6. Second moisture-absorbing cotton layer; 7. Ball layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer toFigures 1 - 5 , a general magnetic levitation shock-absorbing foot pad, including a fixed seat 1. A suspension shock-absorbing structure 2 is arranged on the top of the fixed seat 1. A first annular groove is opened on the top of the fixed seat 1. A first sealing spacer 3 made of plastic structure is clamped on the top of the first annular groove. A first moisture-absorbing cotton layer 4 is laid on the inner side of the first annular groove. The first sealing spacer 3 and the first moisture-absorbing cotton layer 4 protect the first permanent magnet 202 from moisture. A second annular groove is opened at the bottom of the support seat 204. A second sealing spacer 5 made of plastic structure is clamped at the bottom of the second annular groove. A second moisture-absorbing cotton layer 6 is laid on the inner side of the second annular groove. The second sealing spacer 5 and the second moisture-absorbing cotton layer 6 protect the second permanent magnet 206 from moisture. Four ball layers 7 distributed in an annular array are rotatably connected inside the guiding sliding sleeve 205. The ball layers 7 can reduce the friction between the support seat 204 and the guiding slide bar 201.

[0027] The suspension shock-absorbing structure 2 includes a guiding slide bar 201 fixed to the top of the fixed seat 1. A first permanent magnet 202 is fixedly connected to the top of the fixed seat 1. A buffer member 203 is fixedly connected inside the fixed seat 1. The buffer spring 2033 and the telescopic rod 2031 buffer and support the fixed seat 1 and the ground. The top outer side of the guiding slide bar 201 is slidably connected with a support seat 204. Due to the mutual repulsion suspension effect between the first permanent magnet 202 and the second permanent magnet 206, the support seat 204 and the fixed seat 1 are in a balanced suspended state. A guiding sliding sleeve 205 is fixedly connected inside the support seat 204. A second permanent magnet 206 is fixedly connected to the inner bottom of the support seat 204.

[0028] During implementation, the following steps are carried out for operation:

[0029] 1) First, connect the fixed seat 1 to the ground through the column cylinder 2032, and then clamp and fix the support seat 204 to the bottom of equipment such as refrigerators, air conditioners, and washing machines;

[0030] 2) Then, driven by the gravity of the equipment, the support seat 204 moves closer to the fixed seat 1. Due to the principle of like-sex mutual repulsion between the first permanent magnet 202 and the second permanent magnet 206, the repulsive force gradually increases as the gap becomes smaller, so that there is always a gap between the support seat 204 and the fixed seat 1;

[0031] 3) Then, keep the upper equipment in a suspended state from the ground all the time, so that the upper equipment floats and cannot generate vibration;

[0032] 4) Finally, since there is no contact with the ground, no contact vibration transmission will occur, thus reducing the generation of vibration noise.

[0033] According to Figure 1 and Figure 2 as well as Figure 3As shown, the fixed seat 1 is a frustum of a pyramid structure, which is convenient for standing stably on the ground. The first permanent magnet 202 is hermetically isolated inside the first annular groove through the first moisture-absorbing cotton layer 4 and the first sealing spacer 3. On the one hand, the first sealing spacer 3 made of plastic will not affect the generated magnetic field. On the other hand, it isolates the external water vapor to prevent the magnet structure from being oxidized and affecting the magnetism.

[0034] According to Figure 2 As shown, when the upper support seat 204 is pressed down by the gravity of equipment such as washing machines and air conditioners, as the gap between the support seat 204 and the fixed seat 1 decreases, the repulsive force gradually increases. To prevent the fixed seat 1 from moving downward due to the reaction of the repulsive force, resulting in an increase in the moving distance of the support seat 204 and generating a certain amplitude;

[0035] Therefore, the fixed seat 1 is supported by the telescopic rod 2031, the buffer spring 2033 and the cylinder 2032. When the fixed seat 1 moves downward due to the reaction of the repulsive force, it will drive the telescopic rod 2031 to compress the buffer spring 2033. After the buffer spring 2033 undergoes elastic deformation until it is compressed to the minimum value, it will reactively support the fixed seat 1 and reduce the vibration of the fixed seat 1.

[0036] According to Figure 2 and Figure 4 as well as Figure 5 As shown, the second permanent magnet 206 is hermetically isolated inside the second annular groove through the second moisture-absorbing cotton layer 6 and the second sealing spacer 5, thereby isolating the external water vapor to prevent the magnet structure from being oxidized. The guiding slide rod 201 contacts the inner side of the guiding slide sleeve 205 through the ball layer 7. When the support seat 204 moves up and down along the guiding slide rod 201, the friction coefficient can be reduced through the ball structure;

[0037] The annular diameters of the first permanent magnet 202 and the second permanent magnet 206 can be selected from 2 cm to 50 cm, ensuring that the single-group load-bearing is in the range of 5 kg to 500 kg, so as to achieve the vibration reduction effect for different load-bearing objects.

[0038] In summary, the general magnetic levitation shock-absorbing foot pad is placed on the ground through the fixed seat 1 and the buffer member 203. The support seat 204 is clamped and fixed at the bottom of high-frequency working equipment such as washing machines or air conditioners. At this time, a first permanent magnet 202 and a second permanent magnet 206 with the same magnetic poles are arranged between the fixed seat 1 and the support seat 204. Based on the principle of like poles repelling and opposite poles attracting between magnets, there is always a gap between the fixed seat 1 and the support seat 204, achieving the purpose of the equipment being suspended and supported by the support seat 204, actively isolating the equipment from the ground to achieve a shock-absorbing effect. For this general magnetic levitation shock-absorbing foot pad, since the support seat 204 is clamped and supported at the bottom of the equipment and is supported by the magnetic levitation effect at this time, the equipment is in a balanced suspended state with the ground. At this time, the amplitude frequency generated by the high-frequency operation of the equipment cannot be transmitted to the ground through contact, thus greatly reducing the noise problem caused by vibration contact transmission, and solving the problems of poor shock-absorbing effect and noise during contact vibration transmission of the shock-absorbing silicone foot pad in the above background technology, which uses a damping rubber pad and a silicone layer as passive shock-absorbing materials.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A general magnetic levitation shock-absorbing foot pad, comprising a fixed seat (1), characterized in that: A suspension damping structure (2) is provided at the top of the fixed seat (1); The suspension damping structure (2) includes a guiding slide rod (201) fixed to the top of the fixed seat (1). A first permanent magnet (202) is fixedly connected to the top of the fixed seat (1). A buffer member (203) is fixedly connected to the inside of the fixed seat (1). The outer side of the top of the guiding slide rod (201) is slidably connected to a support seat (204). A guiding slide sleeve (205) is fixedly connected to the inside of the support seat (204). A second permanent magnet (206) is fixedly connected to the inner side of the bottom of the support seat (204).

2. The general magnetic levitation damping foot pad according to claim 1, characterized in that: The fixed seat (1) is a frustum of a pyramid structure, and a first annular groove is provided at the top of the fixed seat (1). A first sealing spacer (3) made of plastic is clamped at the top of the first annular groove. The first permanent magnet (202) is located inside the first annular groove. A first moisture-absorbing cotton layer (4) is laid on the inner side of the first annular groove.

3. The general magnetic levitation damping foot pad according to claim 1, characterized in that: Column holes with a through structure are provided at the four corners of the outer side of the fixed seat (1). The buffer member (203) includes telescopic rods (2031) respectively fixedly connected to the inside of the four column holes. Column cylinders (2032) are slidably connected to the outside of the four telescopic rods (2031).

4. The general magnetic levitation damping foot pad according to claim 3, wherein: Buffer springs (2033) are fixedly connected to the inner bottom walls of the four column cylinders (2032). The tops of the four buffer springs (2033) are fixed to the bottoms of the telescopic rods (2031). A vertical groove is provided inside the support seat (204). The top of the guiding slide rod (201) penetrates through the vertical groove and extends to the outside of the top of the support seat (204).

5. A general magnetic levitation damping foot pad according to claim 1, characterized in that: A second annular groove is provided at the bottom of the support seat (204). A second sealing spacer (5) made of plastic is clamped at the bottom of the second annular groove. The second permanent magnet (206) is located inside the second annular groove. A second moisture-absorbing cotton layer (6) is laid on the inner side of the second annular groove. The opposite sides of the first permanent magnet (202) and the second permanent magnet (206) are of the same-sex magnetic pole structure.

6. The general magnetic levitation damping foot pad according to claim 1, wherein: The guiding slide sleeve (205) and the vertical groove are of a through structure, and a number of four ball layers (7) distributed in an annular array are rotatably connected to the inside of the guiding slide sleeve (205). Each ball layer (7) is in rolling contact with the outside of the guiding slide rod (201).

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