Shock-absorbing adjustment device and refrigerator having the same

Abstract

The present invention provides a shock-absorbing adjustment device and a refrigerator having the shock-absorbing adjustment device, wherein the shock-absorbing adjustment device includes a shock-absorbing layer, an adjustment foot shaft, and an adjustment foot mechanism that can move up and down along the adjustment foot shaft to make the shock-absorbing layer contact or separate from the ground. The shock-absorbing adjustment device and the refrigerator having the shock-absorbing adjustment device provided by the present invention are provided with a shock-absorbing layer at the bottom of the adjustment foot, thereby reducing vibration and suppressing the noise of the compressor transmitted from the bottom to the front of the refrigerator; the natural frequency of the whole machine is changed to prevent abnormal noise caused by resonance of the whole machine; the shock-absorbing layer and the adjustment foot are reasonably assembled, the adjustment foot is slightly modified, and the function of adjusting the height and fixing the position of the adjustment foot is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerator vibration reduction and noise reduction, and more specifically, to a vibration reduction adjustment device and a refrigerator having the vibration reduction adjustment device. Background Art

[0002] Refrigerators are indispensable in the homes of many consumers. As daily household appliances, in addition to the basic functions of refrigeration, freezing and preservation, the noise generated during operation is also receiving more and more attention.

[0003] In order to facilitate transportation and short-distance movement during installation, rollers are installed at the bottom of the refrigerator; in order to place it stably in a fixed position, adjustment feet are used at the bottom of the refrigerator to ensure that the refrigerator remains level and prevent movement. At present, refrigerator products on the market basically use rollers and adjustment feet to solve the above two problems, or only use adjustment feet to reduce costs.

[0004] However, sound will be transmitted through vibration, that is, the compressor and the base will resonate, and this resonance will be transmitted to the box through the ground, causing the non-fixed parts such as drawers and shelves in the box to vibrate. The vibration noise generation and transmission path are as follows: compressor working vibration - compressor base - box roller - ground - box adjustment foot - box - non-fixed parts in the box. The general adjustment foot cannot block or reduce the vibration, and transmits the working noise of the refrigerator compressor to the front of the refrigerator, which makes the user have a bad experience. For the noise of compression itself, flame-retardant foaming materials, shock-absorbing glue and other materials can be placed around the compressor, or sound-absorbing materials can be glued to the compressor cover to reduce the spread of noise. The resonance sound caused by the contact between the compressor and the return air pipe and the exhaust pipe can be eliminated by bending and shaping the pipe or installing a counterweight rubber on the pipe. There is no satisfactory way to improve the resonance between the compressor and the compressor base. The current common practice is to improve the rubber ring installed on the compressor, but the effect is unsatisfactory. Summary of the invention

[0005] In order to solve the technical problem that the adjustment feet of the existing refrigerator cannot block or reduce vibration and transmit the working noise of the refrigerator compressor to the front of the refrigerator, the present invention provides a shock-absorbing adjustment device and a refrigerator with the shock-absorbing adjustment device.

[0006] To solve the problem, the technical solution adopted by the present invention is: to provide a shock absorbing adjustment device, including: a shock absorbing layer, an adjustment foot axis, and an adjustment foot mechanism that can move up and down along the adjustment foot axis to make the shock absorbing layer contact or separate from the ground.

[0007] Furthermore, the adjusting foot shaft is a screw, the shock absorbing layer is arranged at the lower end of the adjusting foot shaft, the adjusting foot mechanism includes a nut cooperating with the adjusting foot shaft and an adjusting foot arranged on the outer circle of the nut, and the adjusting foot shaft and the shock absorbing layer can extend or retract the adjusting foot.

[0008] Furthermore, the adjustment foot mechanism is replaced by an inner adjustment foot made of wear-resistant material fixedly connected to the adjustment foot shaft and an outer sleeve threadedly connected to the inner adjustment foot, and the shock-absorbing layer is a vibration-absorbing ring arranged at the lower end of the outer sleeve.

[0009] Preferably, the adjusting foot is made of wear-resistant material.

[0010] Preferably, the adjusting foot is made of hard plastic.

[0011] Preferably, the shock-absorbing layer is made of silicone.

[0012] The present invention also provides a refrigerator, comprising a box body, a door body, a roller arranged on one side of the bottom of the box body, and the above-mentioned shock-absorbing adjustment device arranged on the other side of the bottom of the box body.

[0013] Preferably, the adjusting foot shaft is arranged at the bottom of the hinge plate connected between the box body and the door body.

[0014] Preferably, there is a pair of rollers and a pair of shock absorbing adjustment devices.

[0015] Preferably, the adjusting foot shaft is fastened to the hinge plate by riveting, welding or screwing.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The shock-absorbing layer is installed on the bottom of the adjustment foot to reduce vibration and suppress the noise of the compressor transmitted from the bottom to the front of the refrigerator;

[0018] 2. Changed the natural frequency of the whole machine to prevent abnormal noise caused by resonance of the whole machine;

[0019] 3. The shock-absorbing layer and the adjustment foot are assembled reasonably, and the adjustment foot is slightly modified, which does not affect the function of adjusting the height and fixing the position of the adjustment foot. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A side view of an embodiment of a refrigerator with a shock absorbing adjustment device provided by the present invention;

[0021] Figure 2 A schematic diagram of a state in which the shock-absorbing layer of the shock-absorbing adjustment device provided by the present invention is separated from the ground in the first embodiment;

[0022] Figure 3 for Figure 2 A cross-sectional view of the shock absorbing adjustment device in FIG.

[0023] Figure 4 A schematic diagram of the contact state between the shock absorbing layer and the ground of the first embodiment of the shock absorbing adjustment device provided by the present invention;

[0024] Figure 5for Figure 4 A cross-sectional view of the shock absorbing adjustment device in FIG.

[0025] Figure 6 It is a schematic assembly diagram of the second embodiment of the shock absorbing adjustment device provided by the present invention;

[0026] Figure 7 for Figure 6 A cross-sectional view of the shock absorbing adjustment device in FIG.

[0027] Among them, the main marks of the drawings in the figure are:

[0028] 1-box body; 2-roller; 3-door body; 4-shock-absorbing adjustment device; 5-hinge plate; 6-adjustment foot shaft; 7-adjustment foot mechanism; 71-nut; 72-adjustment foot; 8-shock-absorbing layer; 91-outer cover; 92-inner layer of adjustment foot. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] Please also read Figure 1-7 In order to solve the problem, the technical solution adopted by the present invention is: to provide a shock-absorbing adjustment device, including: a shock-absorbing layer 8, an adjustment foot shaft 6, the shock-absorbing layer 8 is preferably made of silicone or rubber with a high damping coefficient; and also includes an adjustment foot mechanism 7 that can move up and down along the adjustment foot shaft 6 to make the shock-absorbing layer 8 contact or separate from the ground.

[0031] Please also read Figure 1-5 , as the first embodiment of the shock absorbing adjustment device 4 provided by the present invention:

[0032] The adjusting foot shaft 6 is a screw rod, and the shock absorbing layer 8 is arranged at the lower end of the adjusting foot shaft 6. The adjusting foot mechanism 7 includes a nut 71 matched with the adjusting foot shaft 6 and an adjusting foot 72 arranged on the outer circle of the nut 71. The adjusting foot 72 is made of wear-resistant material, preferably hard plastic, such as PP (polypropylene) material; the adjusting foot 72 is provided with a through hole running through its axial direction, and a groove for accommodating the nut 71 is provided in the through hole. The outer circle of the nut 71 is fixed as a whole with the through hole of the adjusting foot 72 in the groove by injection molding or other methods. The through hole forms a channel and an opening in the axial direction of the adjusting foot shaft 6, so that when the adjusting foot 72 moves up and down with the nut 71 on the adjusting foot shaft 6, the adjusting foot shaft 6 and the shock absorbing layer 8 can extend from the above opening or retract into the inside of the adjusting foot 72.

[0033] After the user determines the location of the refrigerator, the nut 71 and the adjusting foot 72 are rotated upward to a certain position, and the shock absorbing layer 8 is exposed. Figure 2-3As shown, the roller 2 and the nut 71 serve as supporting points together to ensure that the refrigerator is placed stably. When the refrigerator is transported or needs to be moved a short distance by the user, the nut 71 and the adjusting foot 72 are rotated downward, and the shock absorbing layer 8 is retracted to prevent the shock absorbing layer 8 from being damaged by friction during movement. Figure 4-5 When moving, the bottom of the roller 2 and the adjusting foot 72 are in contact with the ground.

[0034] Please also read Figure 1 , 6 -7, as the second embodiment of the shock absorbing adjustment device 4 provided by the present invention:

[0035] The adjusting foot shaft 6 is a screw rod, and the adjusting foot mechanism 7 is replaced by an inner adjusting foot which is fastened to the adjusting foot shaft 6 by threads, hot melt, injection molding, etc. The inner adjusting foot is preferably made of wear-resistant material, such as hard plastics such as PP (polypropylene); a sleeve 91 is threadedly connected to the inner adjusting foot, and the shock-absorbing layer 8 is a shock-absorbing ring arranged at the lower end of the sleeve.

[0036] like Figure 6-7 As shown, after the user determines the placement of the refrigerator, the cover 91 is rotated downward to a certain position, and the shock absorbing layer 8 (shock absorbing ring) contacts the ground and acts as a support point together with the roller 2 to place the refrigerator stably. Figure 4 When the user needs to move the device over a short distance during transportation or when the device is being carried by the user, the outer cover 91 is rotated upward, the shock absorbing layer 8 (shock absorbing ring) is retracted, and the inner adjustment foot is exposed. When the device is moved, the roller 2 and the inner adjustment foot are in contact with the ground to prevent the shock absorbing layer 8 (shock absorbing ring) from being damaged by friction during movement.

[0037] The present invention also provides a refrigerator, comprising a box body 1, a door body 3 arranged on the box body 1, a roller 2 arranged on one side of the bottom of the box body 1, and the roller 2 is preferably made of hard plastic, such as POM plastic; and also includes the above-mentioned shock-absorbing adjustment device 4 arranged on the other side of the bottom of the box body 1. As a preferred embodiment provided by the present invention, the roller 2 and the shock-absorbing adjustment device 4 each have a pair, and the adjustment foot shaft 6 is vertically fastened to the bottom of the hinge plate 5 connected between the box body 1 and the door body 3 by riveting, welding or threading; the adjustment foot shaft 6 can also be directly installed at the bottom of the box body 1.

[0038] The shock-absorbing adjustment device 4 provided by the present invention mainly cuts off the longitudinal vibration propagation in the vibration propagation path of the refrigerator compressor, that is, the transmission from the roller 2 to the ground to the adjustment foot, and maintains the materials of the existing roller 2 and the adjustment foot. By arranging a shock-absorbing layer 8 made of rubber, silicone and other materials with a high damping coefficient at the bottom of the device, the shock-absorbing layer 8 is in contact with the ground, thereby reducing vibration, suppressing the noise of the compressor transmitted from the bottom to the front of the refrigerator, and blocking the propagation of the working vibration of the compressor; the shock-absorbing layer 8 and the adjustment foot are reasonably assembled, and the adjustment foot is slightly modified, avoiding the assembly difficulties caused by using rubber, silicone and other materials with a high damping coefficient for the roller 2, the adjustment foot and other components, and does not affect the height adjustment and fixed position adjustment functions of the adjustment foot. The shock-absorbing and noise reduction effect of the refrigerator compressor is achieved through local improvements; at the same time, the natural frequency of the whole machine is changed to prevent abnormal noise caused by resonance of the whole machine.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigerator, comprising a box body, a door body, a roller arranged on one side of the bottom of the box body, and a shock-absorbing adjustment device arranged on the other side of the bottom of the box body, comprising: Shock-absorbing layer, adjustment foot axis, characterized in that the shock-absorbing adjustment device also includes an adjustment foot mechanism that can move up and down along the adjustment foot axis to make the shock-absorbing layer contact or separate from the ground; The adjusting foot shaft is a screw rod, the shock absorbing layer is arranged at the lower end of the adjusting foot shaft, the adjusting foot mechanism includes a nut matched with the adjusting foot shaft and an adjusting foot arranged on the outer circle of the nut, and the adjusting foot shaft and the shock absorbing layer can extend out or retract into the adjusting foot.

2. The refrigerator according to claim 1, characterized in that: The adjustment foot mechanism is replaced by an inner adjustment foot made of wear-resistant material fixedly connected to the adjustment foot shaft and an outer sleeve threadedly connected to the inner adjustment foot, and the shock-absorbing layer is a vibration-absorbing ring arranged at the lower end of the outer sleeve.

3. The refrigerator according to claim 1, characterized in that: The adjusting foot is made of wear-resistant material.

4. The refrigerator according to claim 2 or 3, characterized in that: The adjusting foot is made of hard plastic.

5. The refrigerator according to any one of claims 1 to 3, characterized in that: The shock-absorbing layer is made of silica gel.

6. The refrigerator according to claim 1, characterized in that: The adjusting foot shaft is arranged at the bottom of the hinge plate connected between the box body and the door body.

7. The refrigerator according to claim 1, characterized in that: The rollers and the shock absorbing adjustment device are each provided with a pair.

8. The refrigerator according to claim 6, characterized in that: The adjusting foot shaft is fastened to the hinge plate by riveting, welding or threading.

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