Freezer bottom caster

Abstract

The utility model discloses a freezer bottom caster which comprises a U-shaped support, the U-shaped support comprises an installation plate and two side plates arranged on the inner side face of the installation plate, a roller assembly is installed between the two side plates, a rotating shaft is vertically installed on the outer side face of the installation plate, and a rotating disc is vertically installed on the rotating shaft. At least three mounting through holes are formed in the rotary disc in the circumferential direction at equal intervals, a buffer assembly is arranged in each mounting through hole, each buffer assembly comprises a hollow shaft, a spring and a bolt, the hollow shafts are made of soft materials, penetrate through the mounting through holes and can axially move, and annular limiting protrusions are integrally formed on the outer walls of the two ends of each hollow shaft respectively; a screw of the bolt penetrates through the hollow shaft, the head of the bolt is located on the inner side of the rotary disc, and the outer diameter of the head of the bolt is larger than the inner diameter of the hollow shaft. In addition, the buffer assemblies are arranged between the cabinet body and the rigid trundles, vibration conduction can be absorbed and reduced, the noise reduction effect is achieved, and then the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casters, in particular to a bottom caster for a refrigerator. Background Art

[0002] Horizontal freezers are widely used because of their large storage space. Casters are usually installed at the four corners of the bottom of the freezer to facilitate movement during daily use. At present, the casters used in freezers are mostly rigid assembly structures. When the freezer encounters an uneven road surface during movement, the freezer will be bumpy, and the user experience is poor. In addition, the compressor of the freezer will vibrate during operation, and the vibration is transmitted to the box body. The vibration of the box body is transmitted to the room through the rigid casters, and the noise problem caused by this is also particularly prominent.

[0003] In view of this, it is necessary to improve the existing technology. Utility Model Content

[0004] The purpose of the utility model is to provide a refrigerator bottom caster, aiming to solve at least one of the technical problems existing in the above-mentioned prior art. To achieve the above-mentioned purpose, the technical solution adopted is as follows:

[0005] A refrigerator bottom caster comprises a U-shaped bracket, the U-shaped bracket comprises a mounting plate and two side plates arranged on the inner side of the mounting plate, a roller assembly is installed between the two side plates, a rotating shaft is vertically installed on the outer side of the mounting plate, a turntable is vertically installed on the rotating shaft, at least three mounting through holes are evenly spaced along the circumference of the turntable, each mounting through hole is respectively provided with a buffer assembly, the buffer assembly comprises a hollow shaft, a spring and a bolt, the hollow shaft is made of soft material, the hollow shaft passes through the mounting through hole and can move axially, the outer walls of both ends of the hollow shaft are respectively integrally formed with annular limiting protrusions, and the outer diameter of the annular limiting protrusion is larger than the inner diameter of the mounting through hole, the spring is located on the outer side of the turntable and is sleeved on the outer wall of the hollow shaft, the screw of the bolt passes through the hollow shaft, the head of the bolt is located on the inner side of the turntable, and the outer diameter is larger than the inner diameter of the hollow shaft.

[0006] Preferably, a plurality of reinforcing ribs are provided on the side panel.

[0007] Preferably, the roller assembly comprises a wheel axle and a roller, the roller is rotatably mounted on the wheel axle via a bearing, and both ends of the wheel axle are respectively vertically fixedly connected to corresponding side plates.

[0008] Preferably, the mounting plate and the rotating shaft are rotatably connected via a bearing.

[0009] Preferably, the rotating shaft and the rotating disk are rotatably connected via a bearing.

[0010] Preferably, there are four mounting through holes.

[0011] Preferably, the spring is in a compressed state.

[0012] Preferably, the hollow shaft is made of rubber.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses a refrigerator bottom caster, wherein four sets of buffer components are arranged between the cabinet body and the rigid caster, which can absorb and reduce vibration transmission, play a noise reduction effect, and thus improve user experience. In addition, the bottom caster has a simple structure, low manufacturing cost, strong practicality, and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the bottom caster of the utility model.

[0017] Figure 2 It is a schematic diagram of the hollow shaft structure of the utility model.

[0018] In the figure: 1. mounting plate; 2. side plate; 3. roller; 4. rotating shaft; 5. turntable; 6. hollow shaft; 7. spring; 8. bolt; 9. annular limit protrusion. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figure 1 As shown, a preferred embodiment of the utility model provides a refrigerator bottom caster, including a U-shaped bracket, the U-shaped bracket includes a mounting plate 1 and two side plates 2 arranged on the inner side of the mounting plate 1, the two side plates 2 are parallel and both are vertically fixedly connected to the mounting plate 1, in order to ensure the strength of the side plates, each side plate 2 is provided with a plurality of reinforcing ribs.

[0022] A roller assembly is installed between the two side panels 2. The roller assembly includes a wheel axle and a roller 3. The roller 3 is rotatably installed on the wheel axle through a bearing. Both ends of the wheel axle are respectively vertically fixedly connected to the corresponding side panels 2.

[0023] A rotating shaft 4 is vertically mounted on the outer side surface of the mounting plate 1. Specifically, the mounting plate 1 and the rotating shaft 4 are connected via a bearing, that is, the rotating shaft 4 can rotate freely. A turntable 5 is vertically mounted on the rotating shaft 4. Specifically, the rotating shaft 4 and the turntable 5 are connected via a bearing, that is, the turntable 5 can rotate freely.

[0024] At least three mounting through holes are provided on the turntable 5 at equal intervals along the circumferential direction. The utility model is preferably provided with four mounting through holes, and a buffer assembly is provided in each mounting through hole.

[0025] Specifically, the buffer assembly includes a hollow shaft 6, a spring 7 and a bolt 8. Figure 2 As shown, the hollow shaft 6 is made of a soft material. The utility model preferably uses a rubber material. The hollow shaft 6 passes through the installation through hole and can move axially. The outer walls of both ends of the hollow shaft 6 are respectively integrally formed with annular limiting protrusions 9, and the outer diameter of the annular limiting protrusion 9 is larger than the inner diameter of the installation through hole. The annular limiting protrusion 9 plays a role in limiting the axial movement of the hollow shaft 6. The spring 7 is located on the outside of the turntable 5 and is sleeved on the outer wall of the hollow shaft 6. At the same time, the spring 7 is in a compressed state. The screw of the bolt 8 passes through the hollow shaft 6 and is fixedly connected to the corresponding position of the bottom of the refrigerator. The head of the bolt 8 is located on the inner side of the turntable 5, and the outer diameter is larger than the inner diameter of the hollow shaft 6, which plays a role in limiting the bolt.

[0026] When the refrigerator is moved, the refrigerator is bumpy, or the compressor vibrates when the refrigerator is running. Since there are four sets of buffer components between the cabinet body and the rigid casters, they can absorb and reduce the vibration transmission, play a noise reduction effect, and thus improve the user experience. In addition, the bottom caster has a simple structure, low manufacturing cost, strong practicality, and good use effect.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A refrigerator caster, characterized in that: The invention comprises a U-shaped bracket, which comprises a mounting plate and two side plates arranged on the inner side of the mounting plate, a roller assembly is installed between the two side plates, a rotating shaft is vertically installed on the outer side of the mounting plate, a turntable is vertically installed on the rotating shaft, at least three mounting through holes are evenly spaced along the circumference of the turntable, and a buffer assembly is respectively provided in each mounting through hole, the buffer assembly comprises a hollow shaft, a spring and a bolt, the hollow shaft is made of soft material, the hollow shaft passes through the mounting through hole and can move axially, the outer walls of both ends of the hollow shaft are respectively integrally formed with annular limiting protrusions, and the outer diameter of the annular limiting protrusions is larger than the inner diameter of the mounting through hole, the spring is located on the outer side of the turntable and is sleeved on the outer wall of the hollow shaft, the screw of the bolt passes through the hollow shaft, the head of the bolt is located on the inner side of the turntable, and the outer diameter is larger than the inner diameter of the hollow shaft.

2. The refrigerator caster according to claim 1, characterized in that: The side plate is provided with a plurality of reinforcing ribs.

3. The refrigerator caster according to claim 1, characterized in that: The roller assembly comprises a wheel axle and a roller. The roller is rotatably mounted on the wheel axle via a bearing. Both ends of the wheel axle are respectively and vertically fixedly connected to corresponding side plates.

4. The refrigerator caster according to claim 1, characterized in that: The mounting plate and the rotating shaft are rotatably connected via a bearing.

5. The refrigerator caster according to claim 1, characterized in that: The rotating shaft and the rotating disk are rotatably connected via a bearing.

6. The refrigerator caster according to claim 1, characterized in that: There are four mounting through holes.

7. The refrigerator caster according to claim 1, characterized in that: The spring is in a compressed state.

8. The refrigerator caster according to claim 1, characterized in that: The hollow shaft is made of rubber.

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