An auxiliary device for installing and moving home appliances

Abstract

This invention relates to the field of refrigeration equipment technology and discloses an auxiliary device for the installation and movement of home appliances. It includes a base body for fixing to the bottom of the home appliance, an mounting plate fixedly installed on the inner side of the base body, a main housing fixedly installed inside the center of the mounting plate, a main airbag disposed inside the main housing, and a T-shaped plate slidably connected to the upper top wall of the main housing in the vertical direction. The T-shaped plate is located above the main airbag, and its top end extends out of the main housing and is fixedly connected to a top plate. This invention has the following advantages and effects: Under the combined action of the main airbag and the secondary airbag, this device provides auxiliary adjustment and support for the home appliance during movement, ensuring stable movement and reducing the risk of damage to the home appliance and other furniture due to collisions. It effectively solves the problem of unstable movement caused by unstable center of gravity and uneven force when transporting large-volume home appliances.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to an auxiliary device for the installation and relocation of household appliances. Background Technology

[0002] In today's era, the home appliance industry is booming at an unprecedented pace. Continuous technological advancements and the ever-evolving demands of consumers are jointly driving various home appliances towards greater functionality and superior performance. Among them, household appliances, as indispensable appliances in family life, are experiencing particularly significant growth. With the increasing demand for food storage, the capacity requirements of household appliances are constantly expanding. Major manufacturers are increasing their R&D efforts, continuously launching large-capacity, multi-functional home appliances. This trend has directly led to a significant increase in the overall size of home appliances, evolving from relatively compact designs to today's tall and robust forms.

[0003] In the sales and delivery of home appliances, handling is a crucial step. To effectively save labor costs and improve delivery efficiency, home appliance delivery personnel typically operate in a single-person mode to complete the handling tasks. This mode is sufficient for smaller and lighter appliances, but as the size of home appliances continues to increase, the limitations of single-person operation are becoming increasingly apparent.

[0004] During the delivery of large home appliances, they often pass through obstacles such as sliding door tracks or door frames. These obstacles may protrude from the ground or be recessed. Large appliances (such as double-door refrigerators, upright air conditioner indoor units, and front-loading washing machines) are prone to collisions during transport because it is difficult for a single person to precisely control the relative position of the appliance and the obstacle. Traditional methods rely on manual observation and adjustment by the mover, which not only results in instability but also uneven force distribution. The sharp edges or side panels of the appliance are easily subjected to rigid collisions with other furniture, causing deformation and scratches to the obstacle or other furniture. In severe cases, this can lead to additional repair costs and customer complaints. Therefore, an auxiliary device for the installation and movement of home appliances is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary device for the installation and movement of home appliances, which provides auxiliary adjustment and support for large-volume home appliances during the movement process, ensuring smooth movement and avoiding collisions between large-volume home appliances and other decorative furniture during transport.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an auxiliary device for installing and moving home appliances, comprising a base body for fixing to the bottom of the home appliance, an installation plate fixedly installed on the inner side of the base body, a main housing fixedly installed inside the center of the installation plate, a main airbag disposed inside the main housing, a T-shaped plate slidably connected to the upper top wall of the main housing in the vertical direction, the T-shaped plate being above the main airbag, the top end of the T-shaped plate extending out of the main housing and fixedly connected to a top plate; a plurality of cylinders fixedly installed inside the edge of the installation plate, a secondary housing fixedly connected to the top of the cylinders, a secondary airbag disposed inside the secondary housing, an air tube fixedly connected between the main airbag and the secondary airbag to connect the two, a support rod slidably connected to the lower bottom wall of the secondary housing in a vertical manner, the top end of the support rod extending into the secondary housing and fixedly connected to a compression plate, the compression plate being below the secondary airbag, and a moving mechanism disposed at the bottom end of the support rod.

[0007] This device is fixed to the bottom of large-volume appliances via a base. The main airbag in the main housing is connected to multiple secondary airbags in the secondary housings via air tubes. A certain amount of air is inflated into the main airbag (the user can adjust this). During appliance installation, if the obstacle is higher than the ground, the secondary airbags are compressed by the moving mechanism, and the air from the secondary airbags enters the main airbag, causing the support rod to move upwards, ensuring the large refrigerator moves smoothly during installation. If the obstacle is lower than the ground, the secondary airbags expand by the moving mechanism, and the air from the main airbags enters the secondary airbags, causing the support rod to move downwards. When using this device to move a double-door large-volume refrigerator, the user places the base on the ground and places the large refrigerator on the base, so that the large refrigerator presses against the T-shaped plate and top plate on the main airbag. Under the weight of the large refrigerator, the shape and internal air pressure of the main airbag are changed. Because the main airbag and secondary airbags are connected... The air duct connects the main airbag, and changes in air pressure inside the main airbag are transmitted to the secondary airbag, altering its internal pressure and shape. This change in the secondary airbag's shape pushes the support rod and compression plate up and down. When passing obstacles of varying heights, the extension length of the support rod is adjusted in real time, ensuring smooth movement of large refrigerators during appliance transport. Therefore, the combined action of the main and secondary airbags provides auxiliary adjustment support for large refrigerators during transport. Users can simply straighten the refrigerator and then push it, ensuring smooth movement during the transport of large appliances. In summary, this device, through the combined action of the main and secondary airbags, provides auxiliary adjustment support for large appliances during transport. Users only need to straighten the appliance and then push it, ensuring smooth movement and effectively solving the problem of unstable movement caused by unstable center of gravity and uneven force when transporting large appliances.

[0008] A further feature of the present invention is that a return spring is sleeved on the outer wall of the support rod, and the two ends of the return spring are fixedly connected to the bottom surface of the secondary housing and the outer surface of the support rod, respectively.

[0009] By adopting the above technical solution, when the support rod moves downward under the push of the secondary airbag, the return spring is stretched; when the pressure of the secondary airbag decreases or loses pressure, the elastic force of the return spring will cause the support rod to return upward. The return spring can help the support rod to return quickly, so that the device can quickly return to the initial state after passing through obstacles of different heights, thus improving the adaptability and stability of the device.

[0010] A further configuration of the present invention is as follows: the moving mechanism includes a spherical shell, a cross-shaped retainer is fixedly connected to the inner side of the spherical shell, a plurality of steel balls are rotatably connected inside the cross-shaped retainer, and rolling balls are arranged between the plurality of steel balls.

[0011] By adopting the above technical solution, when the device moves, the rolling ball contacts the ground, and the steel ball rotates in the cross-shaped cage, assisting the rolling ball to roll flexibly. This structure allows the moving mechanism to rotate flexibly in any direction, reducing the friction when moving large-volume refrigerators, enabling large-volume refrigerators to move easily in all directions, and improving the convenience and flexibility of handling.

[0012] A further feature of the present invention is that the number of steel balls is at least nine, the nine steel balls are evenly distributed around the circumference of the cross-shaped retainer, the diameter of the steel balls is 4-5 mm, and the diameter of the rolling ball is 8-12 cm.

[0013] By adopting the above technical solution, the evenly distributed steel balls can stably support the rolling ball. The design of different diameters ensures that the steel balls and the rolling ball cooperate effectively in their respective positions to achieve flexible rolling. The reasonable design of the number and size of the steel balls ensures the stability and flexibility of the moving mechanism, making the large-volume refrigerator more stable during movement and reducing shaking and jamming.

[0014] A further feature of the present invention is that an elastic layer is fixedly connected to the outer surface of the ball, and the material of the elastic layer is rubber.

[0015] By adopting the above technical solution, the rubber elastic layer has shock-absorbing and buffering properties. On the one hand, it protects the door from obstacles, and on the other hand, it can absorb the vibration generated during the movement of a large refrigerator, further increasing the stability during the movement. At the same time, it can also reduce the noise between the rolling ball and the ground.

[0016] A further feature of the present invention is that the ball is made of iron, the bottom end of the support rod has a groove, and a magnetic block is disposed inside the groove.

[0017] By adopting the above technical solution, the cooperation between the magnetic block and the iron ball allows the ball to maintain a better relative position with the support rod during movement, preventing the ball from rolling off or shifting, and improving the reliability and stability of the moving mechanism.

[0018] A further feature of the present invention is that a guide groove is provided between the vertical portion of the T-shaped plate and the upper top wall of the main box body, the extension direction of the guide groove is consistent with the sliding direction of the T-shaped plate, and the width of the guide groove matches the width of the vertical portion of the T-shaped plate.

[0019] By adopting the above technical solution, the T-shaped plate can only move in a straight line along the direction set by the guide groove when sliding on the top wall of the main body. The guide groove provides precise guidance for the sliding of the T-shaped plate, ensuring that the T-shaped plate will not deviate during the up and down movement, so that the pressure on the main airbag can be transmitted evenly and stably, ensuring the working stability of the main airbag and the entire device, and improving the reliability of the device.

[0020] A further feature of the present invention is that the plurality of cylinders are evenly spaced along the edge of the mounting plate, the center distance between two adjacent cylinders is 50mm-100mm, and the axis of the cylinder is perpendicular to the plane of the mounting plate.

[0021] By adopting the above technical solution, the evenly spaced cylinders and secondary housings can make the device support the home appliances more uniformly, enhance the stability of the device, and ensure the uniformity of support by a suitable center distance range (50mm-100mm). This also avoids affecting the overall performance and structural strength of the device due to the cylinders being too dense or sparse. The cylinder axis is perpendicular to the plane of the mounting plate, ensuring that the secondary housing is set vertically. This allows the support rod to move vertically up and down when the secondary airbag is pushed by changes in air pressure, thus improving the adaptability of the device.

[0022] A further feature of the present invention is that the cross-section of the support rod is circular, and a linear bearing is provided between the support rod and the lower bottom wall of the secondary housing. The inner ring of the linear bearing is interference-fitted with the support rod, and the outer ring is fixedly connected to the lower bottom wall of the secondary housing.

[0023] By adopting the above technical solution, the linear bearing is a linear motion system used in conjunction with a cylindrical shaft for linear travel. It ensures the linear movement of the support rod on the bottom wall of the secondary housing. The use of the linear bearing greatly reduces the friction of the support rod during its up-and-down movement, allowing it to move more smoothly and flexibly, improving the response speed and adjustment accuracy of the device. At the same time, the interference fit ensures a tight connection between the inner ring of the linear bearing and the support rod, preventing the support rod from loosening or wobbling during movement, thus improving the stability and reliability of the device. This ensures that the device can accurately and stably adjust the extension length of the support rod according to the air pressure changes of the secondary airbag, providing effective auxiliary support for the movement of home appliances.

[0024] The beneficial effects of this invention are: 1. The main airbag in the main housing and multiple secondary airbags in the secondary housings are connected by air tubes to form an integrated buffer and support system. When a large refrigerator is placed on this auxiliary device, if the obstacle is higher than the ground, the moving mechanism in contact with the obstacle will push the support rod upward, reducing the space occupied by the secondary airbags and compressing them. The gas in the secondary airbags will then enter the main airbag, maintaining the force on the moving mechanism and keeping the large refrigerator stable during movement. If the obstacle is lower than the ground, the moving mechanism in contact with the obstacle will drive the support rod downward, expanding the space occupied by the secondary airbags and causing them to expand. The gas entering the secondary airbag from the main airbag keeps the moving mechanism under force, ensuring the large refrigerator remains stable during movement. This design allows the device to automatically adjust the extension length of the support rod according to real-time changes in ground height, ensuring a constant distance between the bottom of the large refrigerator and the ground. This guarantees smooth movement of large appliances during home transport, greatly improving the stability and safety of large appliance handling, reducing the risk of damage to large appliances and other furniture due to collisions, and effectively solving the problem of unstable movement caused by unstable center of gravity and uneven force during the transport of large appliances.

[0025] 2. This device automatically adjusts the support height and provides stable support, allowing a single person to easily move large-volume home appliances, reducing the difficulty and labor intensity of handling. It eliminates the need for complex handling operations and multiple people to cooperate, enabling the quick and efficient handling of large-volume home appliances. It is suitable for scenarios involving the in-home handling of large-volume home appliances. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a cross-sectional view of the base body and mounting plate of the present invention; Figure 2 This is a cross-sectional view of the main housing of the present invention; Figure 3 This is a schematic cross-sectional view of the secondary box and cylindrical structure of the present invention; Figure 4 This is a schematic diagram of the structure of the moving mechanism of the present invention; Figure 5 This is a top view of the mounting plate and base body of the present invention. Figure 6This is a front structural diagram of the present invention.

[0028] In the diagram: 1. Appliance; 2. Base body; 3. Groove; 4. Mounting plate; 401. Mounting plate body; 402. First mounting hole; 403. Second mounting hole; 5. Magnetic block; 6. Main housing; 7. Main airbag; 8. T-shaped plate; 9. Top plate; 10. Air pipe; 11. Air inlet; 12. Secondary housing; 13. Secondary airbag; 14. Extrusion plate; 15. Cylinder; 16. Return spring; 17. Support rod; 18. Moving mechanism; 1801. Spherical shell; 1802. Cross-shaped retainer; 1803. Steel ball; 1804. Rolling ball; 19. Elastic layer. Detailed Implementation

[0029] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] Reference Figures 1-6 An auxiliary device for installing and moving a home appliance includes a base body 2 for fixing to the bottom of the home appliance 1. A mounting plate 4 is fixedly installed on the inner side of the base body 2. A main housing 6 is fixedly installed inside the center of the mounting plate 4. A main airbag 7 is disposed inside the main housing 6. A T-shaped plate 8 is slidably connected to the upper top wall of the main housing 6 in the vertical direction. The T-shaped plate 8 is located above the main airbag 7, and its top end extends outside the main housing 6 and is fixedly connected to a top plate 9. The inner edge of the mounting plate 4 is also fixedly connected to the main housing 1. Multiple cylinders 15 are fixedly installed. A secondary box 12 is fixedly connected to the top of the cylinder 15. A secondary airbag 13 is set inside the secondary box 12. An air tube 10 is fixedly connected between the main airbag 7 and the secondary airbag 13 to connect the two. A support rod 17 is slidably connected to the bottom wall of the secondary box 12 in a vertical manner. The top of the support rod 17 extends into the secondary box 12 and is fixedly connected to a compression plate 14. The compression plate 14 is located below the secondary airbag 13. A moving mechanism 18 is set at the bottom of the support rod 17. This device is fixed to the bottom of large-volume appliances via a base body. The main airbag 7 in the main housing 6 is connected to the secondary airbags 13 in multiple secondary housings 12 via air pipes 10. A certain amount of air is filled into the main airbag 7 (the user can adjust this amount). During appliance installation, if the obstacle is higher than the ground, the secondary airbags 13 are compressed under the action of the moving mechanism 18, and the gas in the secondary airbags 13 enters the main airbag 7, causing the support rod 17 to move upward, ensuring the large-volume refrigerator moves smoothly during installation. If the obstacle is lower than the ground, the secondary airbags 13 expand under the action of the moving mechanism 18, and the gas in the main airbag 7 enters the secondary airbags 13, causing the support rod 17 to move downward. When using this device to move a double-door large-volume refrigerator, the user places the base body 2 on the ground and places the large-volume refrigerator on the base body 2, so that the large-volume refrigerator presses against the T-shaped plate 8 and top plate 9 on the main airbag 7. Under the gravity of the large-volume refrigerator, the shape and internal air pressure of the main airbag 7 are changed. The main airbag 7 is connected to the secondary airbag 13 via an air tube 10. Changes in the air pressure inside the main airbag 7 are transmitted to the secondary airbag 13 through the air tube 10, altering the air pressure and shape inside the secondary airbag 13. This change in shape pushes the support rod 17 and the compression plate 14 to move up and down. When passing obstacles of different heights, the extension length of the support rod 17 is adjusted in real time, ensuring the smooth movement of the large refrigerator during the delivery of the appliance. Therefore, under the combined action of the main airbag 7 and the secondary airbag 13, auxiliary adjustment support is provided for the large refrigerator during its movement. Users can simply straighten the large refrigerator and then push it, ensuring smooth movement during the delivery of large appliances. In summary, this device, under the combined action of the main airbag 7 and the secondary airbag 13, provides auxiliary adjustment support for the large appliance during its movement. Users only need to straighten the large appliance and then push it, ensuring smooth movement and effectively solving the problem of unstable movement caused by unstable center of gravity and uneven force when transporting large appliances.

[0031] A return spring 16 is fitted on the outer wall of the support rod 17. The two ends of the return spring 16 are fixedly connected to the bottom surface of the secondary housing 12 and the outer surface of the support rod 17, respectively. When the support rod 17 moves downward under the push of the secondary airbag 13, the return spring 16 is stretched. When the pressure of the secondary airbag 13 decreases or loses pressure, the elastic force of the return spring 16 will cause the support rod 17 to return upward. The return spring 16 can help the support rod 17 to return quickly, so that the device can quickly return to the initial state after passing obstacles of different heights, thus improving the adaptability and stability of the device.

[0032] The moving mechanism 18 includes a spherical shell 1801, with a cross-shaped retainer 1802 fixedly connected to the inner side of the spherical shell 1801. Multiple steel balls 1803 are rotatably connected inside the cross-shaped retainer 1802, and rolling balls 1804 are arranged between the multiple steel balls 1803. When the device moves, the rolling balls 1804 contact the ground, and the steel balls 1803 rotate within the cross-shaped retainer 1802, assisting the rolling balls 1804 to roll flexibly. This structure allows the moving mechanism 18 to rotate flexibly in any direction, reducing the friction when moving a large refrigerator, enabling the large refrigerator to move easily in all directions, and improving the convenience and flexibility of handling.

[0033] The number of steel balls 1803 is at least 9, and the 9 steel balls 1803 are evenly distributed around the circumference of the cross-shaped retainer 1802. The diameter of the steel balls 1803 is 4-5mm, and the diameter of the rolling balls 1804 is 8-12cm. The evenly distributed steel balls 1803 can stably support the rolling balls 1804. The design of different diameters ensures that the steel balls 1803 and rolling balls 1804 cooperate effectively in their respective positions to achieve flexible rolling. The reasonable number and size design of the steel balls 1803 ensures the stability and flexibility of the moving mechanism. While ensuring the smooth delivery of home appliances, it makes the large-volume refrigerator more stable during the movement process and reduces shaking and jamming.

[0034] An elastic layer 19 is fixedly connected to the outer surface of the ball 1804. The elastic layer 19 is made of rubber. The rubber elastic layer has shock-absorbing and buffering properties. On the one hand, it protects the obstacles of the door. On the other hand, it can absorb the vibration generated during the movement of the appliance 1, further increasing the stability during the movement. At the same time, it can also reduce the noise between the ball 1804 and the ground.

[0035] The ball 1804 is made of iron. The bottom end of the support rod 17 has a groove 3. A magnetic block 5 is installed inside the groove 3. The cooperation between the magnetic block 5 and the iron ball 1804 allows the ball 1804 to maintain a better relative position with the support rod 17 during movement, preventing the ball 1804 from rolling off or shifting, thus improving the reliability and stability of the moving mechanism.

[0036] A guide groove is provided between the vertical part of the T-shaped plate 8 and the upper top wall of the main housing 6. The extension direction of the guide groove is consistent with the sliding direction of the T-shaped plate 8, and the width of the guide groove matches the width of the vertical part of the T-shaped plate 8. This ensures that when the T-shaped plate 8 slides on the upper top wall of the main housing 6, it can only move in a straight line along the direction set by the guide groove. The guide groove provides precise guidance for the sliding of the T-shaped plate 8, ensuring that the T-shaped plate 8 will not deviate during the up and down movement, so that the pressure on the main airbag 7 can be transmitted evenly and stably, ensuring the working stability of the main airbag 7 and the entire device, and improving the reliability of the device.

[0037] Multiple cylinders 15 are evenly spaced along the edge of the mounting plate 4, with a center distance of 50mm-100mm between adjacent cylinders 15. The axis of the cylinder 15 is perpendicular to the plane of the mounting plate 4. The evenly spaced cylinders 15 and the secondary housing 12 enable the device to provide more uniform support for the appliance 1, enhancing the stability of the device. The appropriate center distance range of 50mm-100mm ensures the uniformity of support and avoids affecting the overall performance and structural strength of the device due to the cylinders 15 being too dense or sparse. The axis of the cylinder 15 is perpendicular to the plane of the mounting plate 4, ensuring that the secondary housing 12 is set vertically. This allows the support rod 17 to move vertically up and down when the secondary airbag 13 is pushed by changes in air pressure, improving the adaptability of the device.

[0038] The support rod 17 has a circular cross-section, and a linear bearing is installed between the support rod 17 and the lower bottom wall of the secondary housing 12. The inner ring of the linear bearing is interference-fitted with the support rod 17, and the outer ring is fixedly connected to the lower bottom wall of the secondary housing 12. The linear bearing is a linear motion system used for linear travel in conjunction with a cylindrical shaft. It ensures the linear movement of the support rod 17 on the lower bottom wall of the secondary housing 12. The use of the linear bearing greatly reduces the friction of the support rod 17 during its up-and-down movement, allowing the support rod 17 to move more smoothly and flexibly, improving the response speed and adjustment accuracy of the device. At the same time, the interference fit ensures a tight connection between the inner ring of the linear bearing and the support rod 17, preventing the support rod 17 from loosening or shaking during movement, improving the stability and reliability of the device, and ensuring that the device can accurately and stably adjust the extension length of the support rod 17 according to the air pressure changes of the secondary airbag 13, providing effective auxiliary support for the movement of large-volume refrigerators.

[0039] The number of secondary cabinets 12 is at least six, and the six secondary cabinets 12 are arranged in a circular array with the axis of the mounting plate 4 as the center. The circular array of secondary cabinets 12 can make the device support the appliance 1 more evenly, enhance the overall stability of the device, and prevent the large refrigerator from tilting or shaking due to uneven force during movement.

[0040] The number of secondary chambers 12 corresponds one-to-one with the number of cylinders 15. Each secondary chamber 12 is equipped with an independent secondary airbag 13. The independent secondary airbag 13 design allows each support rod 17 to independently adjust its extension length according to the actual situation, improving the adaptability and adjustment accuracy of the device.

[0041] The trachea 10 is a flexible silicone tube, and its length matches the distance between the main airbag 7 and the secondary airbag 13. The inner diameter of the trachea 10 is 4-6mm. Both ends of the trachea 10 are sealed to the side walls of the main airbag 7 and the secondary airbag 13 by snap-fit. The flexible silicone tube has a certain degree of flexibility and elasticity. The two ends are sealed to the side walls of the main airbag 7 and the secondary airbag 13 by snap-fit ​​to ensure that the gas does not leak. The flexible tube is easy to install and arrange, and can adapt to the layout of various components of the device. The sealed connection ensures the normal operation of the airbag system and realizes the effective transmission of gas.

[0042] The upper surface of the top plate 9 is provided with anti-slip texture, which is either raised or recessed. The height of the raised texture is 0.5mm-2mm, and the depth of the recessed texture is 0.5mm-2mm. When the appliance 1 is placed on the top plate 9, the anti-slip texture increases the friction between the bottom of the large refrigerator and the top plate 9, preventing the large refrigerator from sliding during movement and further increasing the stability during movement.

[0043] Mounting plate 4 includes mounting plate body 401. A first mounting hole 402 is provided at the geometric center of mounting plate body 401. The main housing 6 is fixedly installed in the first mounting hole 402. Multiple second mounting holes 403 are provided at the edge of mounting plate body 401. The second mounting holes 403 are evenly distributed in a ring along the edge of mounting plate 4. The cylinder 15 is fixedly installed in the second mounting holes 403. This achieves a reasonable layout of the main housing 6 and the cylinder 15 on mounting plate 4, making the installation of each component of the device orderly, facilitating assembly and maintenance, and ensuring the accurate relative position between each component.

[0044] The thickness of the mounting plate body 401 is 4-5mm. The diameter of the first mounting hole 402 is adapted to the outer diameter of the main housing 6, and the depth of the first mounting hole 402 is 10mm. The diameter of the second mounting hole 403 is adapted to the outer diameter of the cylinder 15, and the depth of the second mounting hole 403 is 8mm. This allows the main housing 6 and the cylinder 15 to be accurately and stably installed on the mounting plate 4, ensuring the installation accuracy and connection strength of the mounting plate 4 with the main housing 6 and the cylinder 15, making the entire device structure stable, and allowing all components to work together normally.

[0045] The main airbag 7 has an air inlet 11 extending to the base body 2 on its side wall. The end of the air inlet 11 is provided with a dustproof sealing cover. The dustproof sealing cover is threadedly connected to the port of the air inlet 11. The air inlet 11 facilitates the inflation and deflation of the main airbag 7. The dustproof sealing cover can prevent dust and other impurities from entering the main airbag 7, ensuring the cleanliness of the inside of the main airbag 7 and extending its service life.

[0046] The air inlet 11 is equipped with a valve. By opening and closing the valve, the air in and out of the main airbag 7 can be controlled. This allows for control of the inflation and deflation of the main airbag 7, thereby more accurately adjusting the height of the appliance and preventing accidental gas leakage, thus ensuring the stability of the airbag system.

[0047] The support rod 17 is a stainless steel cylindrical rod with a diameter of 8-12mm. A polytetrafluoroethylene guide sleeve is provided between the support rod 17 and the inner wall of the secondary housing 12. The guide sleeve between the support rod 17 and the secondary housing 12 reduces the friction when the support rod 17 moves, ensuring the strength and durability of the support rod 17. The guide sleeve makes the support rod move smoothly, reduces wear, and improves the service life and reliability of the device.

[0048] Both the main airbag 7 and the secondary airbag 13 are made of elastic rubber. The thickness of the main airbag 7 is 2-3mm, and the thickness of the secondary airbag 13 is 1.5-2.4mm. The elastic rubber material allows the main airbag 7 and the secondary airbag 13 to deform well during inflation and deflation, realizing the height adjustment function. The appropriate thickness ensures that the airbags can withstand a certain pressure without being damaged.

[0049] The present invention has the following effects: 1. The main airbag 7 in the main housing 6 and the secondary airbags 13 in multiple secondary housings 12 are connected by air pipes 10 to form an integrated buffer support system. When the large-volume refrigerator is placed on this auxiliary device and moved, if the obstacle is higher than the ground, the moving mechanism 18 in contact with the obstacle will push the support rod 17 to move upward, reducing the space occupied by the secondary airbags 13, compressing the secondary airbags 13, and allowing the gas in the secondary airbags 13 to enter the main airbag 7, keeping the moving mechanism 18 under force and ensuring the large-volume refrigerator remains stable during movement. If the obstacle is lower than the ground, the moving mechanism 18 in contact with the obstacle will drive the support rod 17 to move downward, reducing the space occupied by the secondary airbags 13. The secondary airbag 13 expands as the space between the main airbag 7 and the secondary airbag 13 expands, allowing gas to enter the secondary airbag 13 and maintain the force on the moving mechanism 18. This ensures that the large refrigerator remains stable during movement. This design allows the device to automatically adjust the extension length of the support rod 17 according to real-time changes in ground height, ensuring that the bottom of the large refrigerator maintains a fixed distance from the ground. This guarantees smooth movement of large appliances during home delivery, greatly improving the stability and safety of large appliance handling. It also reduces the risk of damage to large appliances and other furniture due to collisions, effectively solving the problem of unstable movement caused by unstable center of gravity and uneven force during the handling of large appliances.

[0050] 2. This device automatically adjusts the support height and provides stable support, allowing a single person to easily move large-volume home appliances, reducing the difficulty and labor intensity of handling. It eliminates the need for complex handling operations and multiple people to cooperate, enabling the quick and efficient handling of large-volume home appliances. It is suitable for scenarios involving the in-home handling of large-volume home appliances.

Claims

1. An auxiliary device for installing and moving home appliances, comprising a base body for fixing to the bottom of the home appliance, characterized in that: An installation plate is fixedly installed on the inner side of the base body. A main housing is fixedly installed inside the center of the installation plate. A main airbag is installed inside the main housing. A T-shaped plate is slidably connected to the upper top wall of the main housing in the vertical direction. The T-shaped plate is located above the main airbag. The top of the T-shaped plate extends out of the main housing and is fixedly connected to a top plate. Multiple cylinders are fixedly installed inside the edge of the installation plate. A secondary housing is fixedly connected to the top of the cylinder. A secondary airbag is installed inside the secondary housing. An air tube is fixedly connected between the main airbag and the secondary airbag to connect them. A support rod is slidably connected to the lower bottom wall of the secondary housing in a vertical manner. The top of the support rod extends into the secondary housing and is fixedly connected to a compression plate. The compression plate is located below the secondary airbag. A moving mechanism is provided at the bottom end of the support rod.

2. The auxiliary device for installing and moving household appliances according to claim 1, characterized in that: A return spring is fitted on the outer wall of the support rod, and the two ends of the return spring are fixedly connected to the bottom surface of the secondary housing and the outer surface of the support rod, respectively.

3. The auxiliary device for installing and moving household appliances according to claim 1, characterized in that: The moving mechanism includes a spherical shell, on the inner side of which a cross-shaped retainer is fixedly connected. Multiple steel balls are rotatably connected inside the cross-shaped retainer, and rolling balls are arranged between the multiple steel balls.

4. The auxiliary device for installing and moving household appliances according to claim 3, characterized in that: The number of steel balls is at least 9, and the 9 steel balls are evenly distributed around the circumference of the cross-shaped cage. The diameter of the steel balls is 4-5 mm, and the diameter of the rolling ball is 8-12 cm.

5. The auxiliary device for installing and moving household appliances according to claim 4, characterized in that: An elastic layer is fixedly connected to the outer surface of the ball, and the material of the elastic layer is rubber.

6. The auxiliary device for installing and moving household appliances according to claim 5, characterized in that: The ball is made of iron, and the bottom end of the support rod has a groove with a magnetic block inside the groove.

7. The auxiliary device for installing and moving household appliances according to claim 1, characterized in that: A guide groove is provided between the vertical portion of the T-shaped plate and the upper top wall of the main box. The extension direction of the guide groove is consistent with the sliding direction of the T-shaped plate, and the width of the guide groove matches the width of the vertical portion of the T-shaped plate.

8. The auxiliary device for installing and moving household appliances according to claim 1, characterized in that: The plurality of cylinders are evenly spaced along the edge of the mounting plate, with a center distance of 50mm-100mm between adjacent cylinders, and the axis of the cylinders is perpendicular to the plane of the mounting plate.

9. The auxiliary device for installing and moving household appliances according to claim 1, characterized in that: The support rod has a circular cross-section, and a linear bearing is provided between the support rod and the bottom wall of the secondary housing. The inner ring of the linear bearing is interference-fitted with the support rod, and the outer ring is fixedly connected to the bottom wall of the secondary housing.

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