An appliance handling device

Abstract

This invention provides a home appliance handling device, including a support base with a support surface on its top for placing the home appliance; and a plurality of rolling ball assemblies, each assembly including a first rolling ball and a plurality of second rolling balls. The first and second rolling balls protrude from the support surface to make rolling contact with the home appliance. The plurality of second rolling balls are arranged around the first rolling ball, and the protrusion height of the first rolling ball is greater than that of the second rolling balls. This handling device allows the home appliance to be easily moved in various directions, improving handling efficiency and helping to avoid collisions. Furthermore, by setting the first and second rolling balls, excessive contact between the foam protective material of the home appliance packaging and the flat portion of the support surface is avoided due to deformation, thus preventing excessive friction between the deformed foam protective material and the support surface, which could cause the rolling balls to malfunction.

Description

Technical Field

[0001] This invention relates to the field of home appliance transportation technology, and in particular to a home appliance handling device. Background Technology

[0002] With the improvement of people's living standards, the market demand for various home appliances is constantly increasing. For home appliance manufacturers, the warehousing and shipping processes often require staff to move appliances using handling equipment. However, because the outer packaging of home appliances is generally covered with foam, the friction between the appliance and the handling equipment is relatively high. This makes it time-consuming and laborious for staff to place or remove appliances from the handling equipment. Sometimes, because staff exert too much force to overcome the friction, they cannot stop in time, resulting in a significant impact when the appliance is removed from the handling equipment. Summary of the Invention

[0003] One object of the present invention is to provide a household appliance handling device that can solve any of the above-mentioned problems.

[0004] A further objective of this invention is to improve the ease of maintenance of the handling device and extend its service life.

[0005] Another further object of the present invention is to enable the appliance handling device to be used for cushioning various appliances of different weights.

[0006] In particular, the present invention provides a home appliance handling device, including a support base with a support surface on top for placing the home appliance; a plurality of ball groups, the ball groups including a first ball and a plurality of second balls, the first ball and the second balls protruding from the support surface to make rolling contact with the home appliance, the plurality of second balls being arranged around the first ball, and the protrusion height of the first ball being greater than the protrusion height of the second balls.

[0007] Optionally, the support base includes: a support plate, the support surface being formed on the support plate; a bracket, the bracket being disposed at the bottom of the support plate; and the support plate being detachably mounted on the bracket.

[0008] Optionally, the diameter of the first rolling ball is larger than the diameter of the second rolling ball, and the center of the first rolling ball and the centers of the plurality of second rolling balls are located in the same plane parallel to the support surface.

[0009] Optionally, the support plate includes an upper support plate and a lower support plate, with a gap between the upper support plate and the lower support plate; both the upper support plate and the lower support plate are provided with through holes corresponding to the ball assembly, so that the ball assembly is clamped by the upper support plate and the lower support plate and the ball assembly is exposed to the outside of the upper support plate and the lower support plate.

[0010] Optionally, the bracket includes: a top bracket for mounting the support plate; a bottom bracket disposed at the bottom of the top bracket; an elastic buffer member disposed between the top bracket and the bottom bracket to allow the top bracket to move up and down relative to the bottom bracket; a pressure sensor disposed corresponding to the elastic buffer member in the vertical direction for detecting the pressure on the elastic buffer member; a magnetic buffer assembly including an electromagnet and a magnet disposed on the upper and lower sides of the elastic buffer member, respectively; and a control module for receiving the signal from the pressure sensor and controlling the electromagnet to activate when the signal from the pressure sensor exceeds a preset value, so as to generate a repulsive force between the electromagnet and the magnet.

[0011] Optionally, the control module is used to control the current intensity supplied to the electromagnet so as to increase the current supplied to the electromagnet as the pressure detected by the pressure sensor increases.

[0012] Optionally, the pressure sensor, the electromagnet, and the control module are all mounted on the bottom bracket, and the magnet is mounted on the top bracket.

[0013] Optionally, the elastic buffer member is a spring, and the magnet and the electromagnet are coaxially arranged with the spring.

[0014] Optionally, the magnet is cylindrical, its outer diameter is adapted to the inner diameter of the spring, and the magnet extends into the spring; the electromagnet includes: a pressure-bearing portion for supporting the end of the spring; and a protrusion, which is cylindrical and disposed on one side of the pressure-bearing portion, the outer diameter of the protrusion being adapted to the inner diameter of the spring and extending into the spring; the pressure sensor is stacked with the electromagnet and disposed on the side of the electromagnet away from the spring.

[0015] Optionally, the appliance handling device further includes a plurality of rollers disposed at the bottom of the support base.

[0016] The appliance handling device of the present invention arranges multiple roller groups on a support surface, with the protrusion height of the first roller on the support surface being greater than that of the second roller. During the handling of the appliance, since the appliance contacts the support surface using the foam covering its exterior, the foam of the appliance packaging first contacts the first roller with the larger protrusion. Under pressure, the foam in contact with the first roller deforms, causing the portion of the foam not in contact with the first roller to sink relative to it, thus allowing the foam to contact the second roller with the smaller protrusion. Therefore, during the handling process of the appliance, it can roll in contact with both the first and second rollers, making it easy to move the appliance in all directions, improving handling efficiency and helping to avoid collisions. Furthermore, by arranging the first and second rollers, excessive contact between the foam protective component of the appliance packaging and the flat portion of the support surface due to deformation is avoided, thus preventing excessive friction between the deformed foam protective component and the support surface, which could cause the rollers to lose their function.

[0017] Furthermore, the appliance handling device of the present invention uses an upper support plate and a lower support plate to clamp the ball assembly, exposing the ball assembly to the outer sides of the upper and lower support plates. This allows the ball assembly to rotate in multiple directions, while the outer surfaces of both the upper and lower support plates can serve as support surfaces. In other words, when one side of the support plate has been used for an extended period, workers can remove the support plate and place it upside down for continued use. This not only facilitates maintenance of the support plate but also helps extend its service life.

[0018] Furthermore, the appliance handling device of the present invention, by providing an elastic buffer member, a pressure sensor, and a magnetic buffer assembly between the upper and lower support portions, allows the appliance to be placed on the handling device during the process of placing it on the upper support portion. The appliance, when placed on the upper support portion, compresses the elastic buffer member, thus cushioning the appliance. Specifically, if the appliance is lightweight, the spring compression alone is sufficient to buffer the impact force during placement. That is, the pressure detected by the pressure sensor does not exceed a preset value. If the appliance is heavy, the spring first compresses to initially buffer the impact force. As the spring is continuously compressed, the pressure detected by the pressure sensor increases. When the pressure detected by the pressure sensor exceeds the preset value, the control module activates the electromagnet, generating a repulsive force between the electromagnet and the magnet, further buffering the impact force. Therefore, the handling device can buffer the impact force according to the weight of the appliance, making it suitable for various appliances of different weights, thereby protecting both the appliance and the handling device.

[0019] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0020] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0021] Figure 1 This is a schematic structural diagram of a conveying device according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic structural diagram of a support in a transport device according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic cross-sectional view of a support plate in a conveying device according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of a portion of the support plate of a conveying device according to an embodiment of the present invention after the ball assembly has been removed;

[0025] Figure 5 This is a schematic structural diagram of a portion of the support structure in a conveying device according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic block diagram of a conveying device according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic structural diagram of an electromagnet in a conveying device according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic structural diagram of a portion of the support structure in a conveying device according to yet another embodiment of the present invention. Detailed Implementation

[0029] Those skilled in the art should understand that the embodiments described below are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. These partial embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0030] It should be noted that in the description of this invention, terms such as "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "center," and "circumferential" that indicate direction or positional relationship are based on the direction or positional relationship shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0031] like Figure 1 As shown, in one embodiment, the handling device 1 includes a support base 10 and a plurality of ball assemblies 20. The support base 10 has a support surface 101 on its top for placing household appliances. The ball assembly 20 includes a first ball 201 and four second balls 202. The first ball 201 and the second ball 202 protrude from the support surface 101 to make rolling contact with the household appliances. The four second balls 202 are arranged around the first ball 201, and the protrusion height of the first ball 201 is greater than the protrusion height of the second balls 202.

[0032] like Figure 1 As shown, multiple sets of rolling balls 20 are arranged in an array on the support surface 101, with equal distances between any two adjacent first rolling balls 201. In each set of rolling balls 20, four second rolling balls 202 are evenly arranged around the first rolling balls 201, meaning that the distance between the center of the first rolling ball 201 and the center of the four second rolling balls 202 is equal, and the line connecting the center of the first rolling ball 201 and the center of the four second rolling balls 202 forms a cross shape.

[0033] Continue to refer to Figure 1 As shown, both the first rolling ball 201 and the second rolling ball 202 are embedded in the support base 10, ensuring that the first rolling ball 201 and the second rolling ball 202 cannot detach from the support base 10 during use, while both can roll in multiple directions on the support base 10. Furthermore, the height of the portion of the first rolling ball 201 protruding from the support surface 101 is greater than the height of the portion of the second rolling ball 202 protruding from the support surface 101, and all four second rolling balls 202 protrude from the support surface 101 at the same height.

[0034] Specifically, because the appliance packaging is covered with foam protective material, during the handling process using the handling device 1, the appliance contacts the support surface 101 through the foam protective material covering its exterior. That is, the foam protective material of the appliance packaging placed on the support surface 101 first contacts the first ball 201 with a larger protrusion. Under pressure, the foam protective material in contact with the first ball 201 deforms, causing the portion of the foam protective material not in contact with the first ball 201 to sink relative to it. This sinking portion of the foam protective material then contacts the second ball 202 with a smaller protrusion.

[0035] Therefore, in this embodiment, during the process of picking up and placing the home appliance on the handling device 1, it can roll into contact with the first rolling ball 201 and the second rolling ball 202. That is, when the home appliance moves on the support surface 101, it can drive the first rolling ball 201 and the second rolling ball 202 to roll, thereby making it easy for the home appliance to move in all directions, improving handling efficiency and helping to avoid collisions between the home appliance and the appliance.

[0036] Furthermore, by setting a first ball 201 and a second ball 202 with different protrusion heights, multi-level support can be achieved for the foam protective component of the appliance packaging. Specifically, the first ball 201 can provide primary support for the foam protective component, and the second ball 202 can provide secondary support for the deformed foam protective component. This effectively avoids excessive contact between the foam protective component of the appliance packaging and the flat part of the support surface 101 due to deformation, thereby preventing excessive friction between the deformed foam protective component and the support surface 101, which could cause the ball to lose its function.

[0037] It should be noted that in some other embodiments of this application, multiple sets of rolling balls 20 may also be irregularly distributed on the support surface 101. Furthermore, the diameters of the first rolling ball 201 and the second rolling ball 202 may be the same or different, as long as the protrusion height of the second rolling ball 202 is less than the protrusion height of the first rolling ball 201.

[0038] It should also be noted that the number of second balls 202 in each group of rolling balls 20 can be two, three, five or more. Multiple second balls 202 can also be unevenly distributed around the first ball 201. Furthermore, the distribution of the second balls 202 in each group of rolling balls 20 can also be different.

[0039] It should also be noted that adjacent rolling ball groups 20 can share the same or several second rolling balls.

[0040] like Figures 1 to 2As shown, the support base 10 further includes a support plate 110 and a bracket 120. A support surface 101 is formed on the support plate 110. The bracket 120 is disposed at the bottom of the support plate 110, and the support plate 110 is detachably mounted on the bracket 120.

[0041] Specifically, the top of the bracket 120 is provided with a placement groove 121 whose size is similar to that of the support plate 110. The support plate 110 can be placed in the placement groove 121. The placement groove 121 provides support for the support plate 110 at its bottom and limits its movement in the circumferential direction. This allows the support plate 110 to be assembled with the bracket 120. The ball assembly 20 is mounted on the support plate 110.

[0042] In this embodiment, by detachably mounting the support plate 110 on the bracket 120, it is convenient for staff to repair and replace the support plate 110.

[0043] It should be noted that in some other embodiments of this application, the detachable connection between the support plate 110 and the bracket 120 can also be a snap-fit ​​connection, a bolt connection, or a pin connection, or other methods.

[0044] It should be noted that in some other embodiments of this application, the connection between the support plate 110 and the bracket 120 can also be a non-detachable connection, including the support base 10 being an integrally formed whole and the support plate 110 and the bracket 120 being welded together.

[0045] Combination Figure 3 As shown, the diameter of the first rolling ball 201 is larger than the diameter of the second rolling ball 202, and the center of the first rolling ball 201 and the center of the second rolling ball 202 are in the same plane parallel to the support surface 101.

[0046] In this embodiment, by making the center of the first rolling ball 201 and the center of the second rolling ball 202 in the same plane, that is, by making the rotation centers of the first rolling ball 201 and the second rolling ball 202 in the same plane, it helps to make the rolling of the first rolling ball 201 and the second rolling ball 202 smoother and more stable.

[0047] Preferably, the first rolling ball 201 and the plurality of second rolling balls 202 are tangent, so that the second rolling balls 202 are close to the first rolling ball 201, which can provide support for the deformed foam protective component more promptly and improve the support effect.

[0048] like Figure 3 and Figure 4As shown, the support plate 110 further includes an upper support plate 111 and a lower support plate 112, with a gap between them. Both the upper support plate 111 and the lower support plate 112 are provided with through holes 113 corresponding to the ball assembly 20, so that the ball assembly 20 is held between the upper support plate 111 and the lower support plate 112 and exposed to the outside of the upper support plate 111 and the lower support plate 112.

[0049] like Figure 3 and Figure 4 As shown, specifically, the support plate 110 includes an upper support plate 111, a lower support plate 112, and side plates surrounding the upper support plate 111 and the lower support plate 112. The upper support plate 111, the lower support plate 112, and the side plates together form a hollow cavity. Both the upper support plate 111 and the lower support plate 112 are provided with through holes 113 corresponding to the ball assembly 20, wherein the diameter of the through hole corresponding to the first ball 201 is larger than the diameter of the through hole corresponding to the second ball 202.

[0050] Continue to refer to Figure 3 and Figure 4 As shown, the diameter of the through hole 113 corresponding to the first ball 201 is smaller than the diameter of the first ball 201. Therefore, when the first ball 201 is clamped by the upper support plate 111 and the lower support plate 112, the first ball 201 can be exposed to the outside of the upper support plate 111 and the lower support plate 112 through the through hole 113. Furthermore, the upper support plate 111 and the lower support plate 112 limit the first ball 201 using the through hole 113, so that the first ball 201 cannot move in the vertical and horizontal directions, but can rotate.

[0051] Similarly, the diameter of the through hole 113 corresponding to the second ball 202 is smaller than the diameter of the second ball 202. Therefore, when the second ball 202 is clamped by the upper support plate 111 and the lower support plate 112, the second ball 202 can be exposed to the outside of the upper support plate 111 and the lower support plate 112 through the through hole 113. Furthermore, the upper support plate 111 and the lower support plate 112 limit the second ball 202 using the through hole 113, so that the second ball 202 cannot move in the vertical and horizontal directions, but can rotate.

[0052] Therefore, the height by which the first ball 201 and the second ball 202 protrude from the outer side of the upper support plate 111 is equal to the height by which the first ball 201 and the second ball 202 protrude from the outer side of the lower support plate 112. In other words, both the outer surface of the upper support plate 111 and the outer surface of the lower support plate 112 can serve as support surfaces.

[0053] In this embodiment, the ball assembly 20 is held between the upper support plate 111 and the lower support plate 112, with the ball assembly 20 having the same mechanism on the outer sides of both the upper and lower support plates 111 and 112. Therefore, while the first ball 201 and the second ball 202 can rotate in multiple directions, the outer surfaces of both the upper and lower support plates 111 and 112 can serve as support surfaces. In other words, if one side of the support plate 110 has been used for an extended period, the operator can remove the support plate 110 and place it upside down for continued use, thus helping to extend the service life of the support plate 110.

[0054] It should be noted that in some other embodiments of this application, the upper support plate 111 and the lower support plate 112 may also be tightly joined together. In this case, the upper support plate 111 and the lower support plate 112 need to be thicker.

[0055] Alternatively, the support plate 110 can also clamp the rolling ball by splicing it along the horizontal direction, which can achieve the same effect. However, in this way, the support plate 110 needs to be divided into more parts.

[0056] It should also be noted that in some other embodiments of this application, the ball assembly 20 may be exposed only on one side of the support plate 110.

[0057] Go back to reference Figure 2 As shown, in one embodiment, the bracket 120 includes a top bracket 122 and a bottom bracket 123. The top bracket 122 is used to hold the support plate 110. The bottom bracket 123 is disposed at the bottom of the top bracket 122. An elastic buffer member 124 is provided between the top bracket 122 and the bottom bracket 123 to allow the top bracket 122 to move up and down relative to the bottom bracket 123.

[0058] Combination Figure 5 and Figure 6 As shown, the conveying device 1 also includes a pressure sensor 125, which is disposed vertically opposite to the elastic buffer member 124 to detect the pressure on the elastic buffer member 124. A magnetic buffer assembly 126 includes an electromagnet 1261 and a magnet 1262, which are respectively disposed on the upper and lower sides of the elastic buffer member 124. A control module 127 receives the signal from the pressure sensor 125 and controls the electromagnet 1261 to activate when the signal exceeds a preset value, thereby generating a repulsive force between the electromagnet 1261 and the magnet 1262.

[0059] Reference Figure 2 , Figure 5 and Figure 6As shown, specifically, both the top support 122 and the bottom support 123 are rectangular structures, which helps reduce costs. The elastic buffer member 124 is a spring, and the support 120 has four elastic buffer members 124, distributed at the four corners of the support 120. Correspondingly, each spring is equipped with a pressure sensor 125 and a magnetic buffer assembly 126. When the appliance is placed on the support plate 110, the spring is compressed. Because the pressure sensor 125 and the elastic buffer member 124 are correspondingly arranged in the vertical direction, the pressure sensor 125 can detect the pressure on the spring.

[0060] Continue to refer to Figure 2 , Figure 5 and Figure 6 As shown, the control module 127 can receive signals transmitted by the pressure sensor 125, and the program of the control module 127 stores preset values. When the signal received by the control module 127 from the pressure sensor 125 is greater than the preset value (that is, when the pressure on the pressure sensor 125 exceeds a certain value), the control module 127 controls the electromagnet 1261 to start, that is, controls the energization of the electromagnet 1261, so that the electromagnet 1261 generates a magnetic force, and the magnetic force generated by the electromagnet 1261 repels the magnetic force of the magnet 1262.

[0061] Specifically, during the use of the handling device 1, when the worker places the appliance on the support plate 110, the elastic buffer member 124 is compressed under the weight of the appliance, and the elastic buffer member 124 uses its own elasticity to cushion the appliance. If the appliance is relatively light, the elastic force generated by the spring compression is sufficient to cushion the impact force when the appliance is placed. In other words, the signal received by the pressure sensor 125 from the control module 127 does not exceed the preset value. At this time, the electromagnet 1261 does not activate.

[0062] If the appliance is heavy, the spring will first compress to initially cushion the impact. As the spring is continuously compressed, the pressure detected by the pressure sensor 125 increases, meaning the signal received by the control module 127 becomes stronger. When the signal received by the control module 127 exceeds a preset value, the control module 127 activates the electromagnet 1261, causing a repulsive force to be generated between the electromagnet 1261 and the magnet 1262. This repulsive force further cushions the impact.

[0063] Therefore, in this embodiment, the handling device 1 can use springs to cushion lighter appliances, while using springs and the repulsive force between electromagnets 1261 and magnets 1262 to cushion heavier appliances. This allows the handling device 1 to provide varying degrees of cushioning based on the weight of the appliance, preventing excessive descent and discomfort for workers when the appliance is too heavy, and avoiding significant weight differences that could negatively impact the user experience. This makes it suitable for various appliances of different weights and helps protect both the appliances and the handling device.

[0064] In addition, by setting multiple elastic buffer components 124, pressure sensors 125, and magnetic buffer components 126, multiple buffer points can be formed between the top support 122 and the bottom support 123. Furthermore, each magnetic buffer component 126 can be activated independently. When the weight distribution of the appliance on the support plate 110 is uneven, the magnetic buffer component 126 at the buffer point with greater force may be activated independently, thereby making the whole system more stable.

[0065] It should be noted that the top support 122 and the bottom support 123 can also be complete plate structures, allowing the elastic buffer member 124 to be positioned at the center of the support 120. Alternatively, only one elastic buffer member 124 can be provided, but it is necessary for the elastic buffer member 124 to be positioned at the center of the support 120 and to have a large cross-sectional area, while also ensuring that the appliance is placed more accurately.

[0066] It should also be noted that the number of elastic buffer members 124 can be three, five, or other quantities. In addition, the elastic buffer member 124 can also be a hydraulic mechanism, an airbag mechanism, or other elastic buffer members.

[0067] In addition, magnet 1262 can be an electromagnet that is always energized, or it can be a natural permanent magnet.

[0068] Preferably, the control module 127 can control the current intensity supplied to the electromagnet 1261, that is, control the magnitude of the magnetic force generated by the electromagnet 1261. As the signal received by the control module 127 increases, the control module 127 can increase the current supplied to the electromagnet 1261.

[0069] In one embodiment, when the signal received by the control module 127 exceeds a preset value, the control module 127 controls the current supplied to the electromagnet 1261 to increase linearly as the signal continues to increase.

[0070] In another approach, when the signal received by the control module 127 exceeds a preset value, as the signal increases, when the signal is within the first interval, the control module 127 controls the current supplied to the electromagnet 1261 to a certain intensity; when the signal is within the second interval, the control module 127 controls the current supplied to the electromagnet 1261 to a stronger intensity. In other words, the current intensity is adjusted by dividing the signal into intervals.

[0071] In this embodiment, by controlling the current intensity delivered to the electromagnet 1261 according to the received signal magnitude, the difference in descent height caused by the weight difference of the home appliances can be further reduced, thereby making the buffering effect of the handling device 1 better and the user experience better.

[0072] like Figure 2 and Figure 5 As shown, the pressure sensor 125, electromagnet 1261, and control module 127 are all mounted on the bottom bracket 123, while the magnet 1262 is mounted on the top bracket 122. The bottom bracket 123 has a hollow cavity, allowing the wiring to be concealed within it.

[0073] Those skilled in the art will understand that, since the pressure sensor 125, electromagnet 1261 and control module 127 need to be connected by wiring, by placing the pressure sensor 125, electromagnet 1261 and control module 127 on the bottom bracket 123, it is not only convenient to connect the wiring between the three, but also better protects the wiring because the bottom bracket 123 does not move relative to the overall structure during use.

[0074] Continue to refer to Figure 2 and Figure 5 As shown, the magnet 1262 and electromagnet 1261 are further arranged coaxially with the spring. Specifically, the magnet 1262 is cylindrical, the outer diameter of the magnet 1262 is adapted to the inner diameter of the spring, and the magnet 1262 extends into the spring.

[0075] Combination Figure 5 and Figure 7 As shown, the electromagnet 1261 includes a pressure-bearing portion 1263 and a protrusion 1264. The pressure-bearing portion 1263 is used to support the end of the spring. The protrusion 1264 is cylindrical and is disposed on one side of the pressure-bearing portion 1263. The outer diameter of the protrusion 1264 is adapted to the inner diameter of the spring and extends into the spring. The pressure sensor 125 is stacked on top of the electromagnet 1261 and is disposed on the side of the electromagnet 1261 away from the spring.

[0076] Specifically, magnet 1262 is fixed to top bracket 122, pressure sensor 125 is fixed to bottom bracket 123, and electromagnet 1261 is placed on top of pressure sensor 125. The bottom end of spring contacts the top of pressure-bearing portion 1263 of electromagnet 1261, and spring is sleeved on the outer periphery of protrusion 1264 of electromagnet 1261. The top end of spring is sleeved on the outer periphery of magnet 1262.

[0077] In this embodiment, by inserting the electromagnet 1261 and the magnet 1262 into the spring, the spring can be supported to a certain extent, thereby improving the stability of the spring's extension and contraction. Furthermore, the repulsive force between the electromagnet 1261 and the magnet 1262 is more closely distributed with the spring's elastic force, which is beneficial for improving the buffering effect.

[0078] It should be noted that the electromagnet 1261 and the magnet 1262 can also be sleeved on the outside of the spring, thus being coaxially arranged with the spring.

[0079] It should also be noted that in some other embodiments of this application, the electromagnet 1261, the magnet 1262 and the spring may not be coaxially arranged, but rather arranged next to and close to the spring.

[0080] Go back to reference Figure 1 As shown, in one embodiment, the conveying device 1 further includes a plurality of rollers 30 disposed at the bottom of the support base 10, thereby enabling the conveying device 1 to move using the rollers 30.

[0081] It should be noted that the transport device 1 may not have rollers 30. Instead, a transport device 1 of a suitable size may be customized for carts and other equipment, and the transport device 1 may be installed on the cart.

[0082] like Figure 8 As shown, in one embodiment, the elastic buffer member 124 includes a pressure rod 1241 and a spring 1242. The pressure rod 1241 is disposed between the spring 1242 and the top support 122, and the magnet 1262 is disposed between the top of the spring 1242 and the pressure rod 1241.

[0083] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A household appliance handling device, comprising: A support base, the top of which has a support surface for placing home appliances; Multiple ball groups, the ball groups including a first ball and multiple second balls, the first ball and the second balls protruding from the support surface to make rolling contact with the appliance, the multiple second balls being arranged around the first ball, and the protrusion height of the first ball being greater than the protrusion height of the second balls; The support base includes: Support plate, wherein the support surface is formed on the support plate; The bracket is disposed at the bottom of the support plate; The support plate is detachably mounted on the bracket; The diameter of the first rolling ball is larger than the diameter of the second rolling ball, and the center of the first rolling ball and the centers of the plurality of second rolling balls are in the same plane parallel to the support surface; The support plate includes an upper support plate and a lower support plate, and there is a gap between the upper support plate and the lower support plate; Both the upper support plate and the lower support plate are provided with through holes corresponding to the ball assembly, so that the ball assembly is clamped by the upper support plate and the lower support plate and the ball assembly is exposed to the outside of the upper support plate and the lower support plate.

2. The appliance handling device according to claim 1, wherein, The support includes: A top bracket for mounting the support plate; A bottom bracket is disposed at the bottom of the top bracket; An elastic cushioning member is disposed between the top support and the bottom support to allow the top support to move up and down relative to the bottom support; A pressure sensor is provided, which is disposed in the vertical direction corresponding to the elastic buffer member, so as to detect the pressure on the elastic buffer member; A magnetic buffer assembly, comprising an electromagnet and a magnet, wherein the electromagnet and the magnet are respectively disposed on the upper and lower sides of the elastic buffer member; The control module is used to receive the signal from the pressure sensor and control the electromagnet to start when the signal from the pressure sensor exceeds a preset value, so as to generate a repulsive force between the electromagnet and the magnet.

3. The appliance handling device according to claim 2, wherein, The control module is used to control the current intensity supplied to the electromagnet, so as to increase the current supplied to the electromagnet as the pressure detected by the pressure sensor increases.

4. The appliance handling device according to claim 2, wherein, The pressure sensor, the electromagnet, and the control module are all mounted on the bottom bracket, while the magnet is mounted on the top bracket.

5. The appliance handling device according to claim 4, wherein, The elastic buffer component is a spring, and the magnet and the electromagnet are coaxially arranged with the spring.

6. The appliance handling device according to claim 5, wherein, The magnet is cylindrical, and its outer diameter is adapted to the inner diameter of the spring, with the magnet extending into the spring. The electromagnet includes: A pressure-bearing portion, which supports the end of the spring; and A protrusion, which is cylindrical and is disposed on one side of the pressure-bearing part, wherein the outer diameter of the protrusion is adapted to the inner diameter of the spring and extends into the spring; The pressure sensor is stacked on top of the electromagnet and is located on the side of the electromagnet away from the spring.

7. The appliance handling device according to claim 1, further comprising: Multiple rollers are disposed at the bottom of the support base.

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