CN114576895B - Sliding rail assembly and refrigerator - Google Patents

Sliding rail assembly and refrigerator Download PDF

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Publication number
CN114576895B
CN114576895B CN202011389888.4A CN202011389888A CN114576895B CN 114576895 B CN114576895 B CN 114576895B CN 202011389888 A CN202011389888 A CN 202011389888A CN 114576895 B CN114576895 B CN 114576895B
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CN
China
Prior art keywords
rail
rack
sliding
sliding rail
slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011389888.4A
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Chinese (zh)
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CN114576895A (en
Inventor
崔金良
吴光瑞
付伟健
李鸿亮
韩甲栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN202011389888.4A priority Critical patent/CN114576895B/en
Priority to PCT/CN2021/132820 priority patent/WO2022116878A1/en
Publication of CN114576895A publication Critical patent/CN114576895A/en
Application granted granted Critical
Publication of CN114576895B publication Critical patent/CN114576895B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/49—Sliding drawers; Slides or guides therefor with double extensible guides or parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Drawers Of Furniture (AREA)

Abstract

The invention provides a sliding rail assembly and a refrigerator. The slide rail assembly includes: a lower rail of the sliding rail is provided with a lower rail rack; the middle rail of the sliding rail is positioned above the lower rail of the sliding rail and is connected with the lower rail of the sliding rail in a sliding manner; the upper rail is arranged above the middle rail of the sliding rail and is slidably connected with the middle rail of the sliding rail; the gear is rotatably arranged on the middle rail of the sliding rail and is respectively meshed with the upper rail rack and the lower rail rack; the upper rail of the sliding rail is configured to slide along the middle rail of the sliding rail under the action of external force, and the upper rail rack drives the gear to rotate, so that the middle rail of the sliding rail is driven to slide along the lower rail of the sliding rail under the rotation of the gear. The lower rail rack and the upper rail rack are respectively connected with the gear in a meshed mode, so that the movement of the upper rail and the middle rail of the sliding rail is more controllable, the friction and collision between the middle rail and the lower rail of the sliding rail and between the middle rail and the upper rail of the sliding rail are reduced, and noise is reduced.

Description

Sliding rail assembly and refrigerator
Technical Field
The invention relates to the technical field of sliding rails, in particular to a sliding rail assembly and a refrigerator.
Background
Currently, it is common to push and pull objects through a slide assembly, for example, by pushing and pulling a drawer through a slide assembly to close or open the drawer. However, during the pushing and pulling of objects through the slide rail assembly, friction between the slides in the slide rail assembly and friction between the slides and the drawer can create loud noise. In addition, in the process of pushing and pulling an object through the sliding rail assembly, the upper rail in the sliding rail assembly is easy to shake left and right, and inconvenience is brought to a user.
Disclosure of Invention
The present invention has been made in view of the above problems, and has as its object to provide a slide rail assembly and a refrigerator which overcome or at least partially solve the above problems.
It is an object of the present invention to reduce the noise and sloshing range of a slide rail assembly.
It is a further object of the present invention to reduce the cost of the slide rail assembly.
In particular, the present invention provides a slide rail assembly comprising:
a lower rail of the sliding rail is provided with a lower rail rack;
the middle rail of the sliding rail is positioned above the lower rail of the sliding rail and is connected with the lower rail of the sliding rail in a sliding manner;
the upper rail is arranged above the middle rail of the sliding rail and is slidably connected with the middle rail of the sliding rail;
the gear is rotatably arranged on the middle rail of the sliding rail and is respectively meshed with the upper rail rack and the lower rail rack;
the upper rail of the sliding rail is configured to slide along the middle rail of the sliding rail under the action of external force, and the upper rail rack drives the gear to rotate, so that the middle rail of the sliding rail is driven to slide along the lower rail of the sliding rail under the rotation of the gear.
Optionally, the length of the lower rail rack is smaller than the length of the lower rail of the slide rail;
the length of the upper rail rack is smaller than that of the upper rail of the sliding rail.
Optionally, the lower rail rack is arranged at one end of the sliding rail lower rail facing the pulling-out direction;
the upper rail rack is arranged at one end of the upper rail of the sliding rail, which faces the push-back direction.
Optionally, the lower rail rack, the gear and the upper rail rack are disposed on the same side of the lower rail, the middle rail and the upper rail.
Optionally, a first protrusion is arranged on the side surface of the upper rail of the sliding rail, which is provided with the upper rail rack;
the upper rail rack is provided with a first clamping groove matched with the first bulge;
the side surface of the lower rail of the sliding rail, which is provided with the lower rail rack, is provided with a second bulge;
the lower rail rack is provided with a second clamping groove matched with the second bulge;
the first bulge is positioned in the first clamping groove and is configured to enable the upper rail rack to be fixed on the upper rail of the sliding rail;
the second protrusion is positioned in the second clamping groove and is configured to fix the lower rail rack on the lower rail of the sliding rail.
Optionally, the first protrusion is bent in a hook-shaped structure towards the pulling-out direction;
the second bulge is bent towards the pushing-back direction to form a hook-shaped structure.
Optionally, a third clamping groove is formed at one end, facing the pushing-back direction, of the side surface, provided with the upper rail rack, of the upper rail of the sliding rail;
the upper rail rack is provided with a third bulge matched with the third clamping groove;
one end of the side surface of the lower rail of the sliding rail, which is provided with the lower rail rack, facing the pulling-out direction is provided with a fourth clamping groove;
the lower rail rack is provided with a fourth bulge matched with the fourth clamping groove;
the third bulge is positioned in the third clamping groove and is configured to enable the upper rail rack to be fixed on the upper rail of the sliding rail;
the fourth protrusion is located in the fourth clamping groove, and the fourth protrusion is configured to fix the lower rail rack on the lower rail of the sliding rail.
Optionally, the slide rail assembly further comprises:
an upper ball nest member and a lower ball nest member slidably disposed on an upper surface and a lower surface of the rail in the slide rail, respectively;
the upper ball nest component is provided with a plurality of upper ball grooves which penetrate through the upper ball nest component;
the lower ball nest component is provided with a plurality of lower ball grooves penetrating through the lower ball nest component;
the upper ball groove is rotationally fixed with balls which are respectively connected with the middle rail of the sliding rail and the upper rail of the sliding rail;
and the lower ball groove is rotationally fixed with balls which are respectively connected with the middle rail of the sliding rail and the lower rail of the sliding rail.
Optionally, the slide rail assembly further comprises:
and the base is fixedly connected with the lower surface of the lower rail of the sliding rail and is used for being connected with a support of the sliding rail assembly.
According to another aspect of the present invention, there is also provided a refrigerator including:
a storage compartment;
two slide rail components according to any one of the above, the two slide rail components are respectively fixed at two sides of the storage compartment;
the storage container is fixedly connected with the upper surfaces of the upper rail racks of the two sliding rail assemblies respectively.
In the sliding rail assembly, the lower rail rack and the upper rail rack are respectively in meshed connection with the gear. Under the action of external force, the upper rail of the sliding rail drives the upper rail rack to slide, so that the gear is driven to rotate through the upper rail rack, and then the middle rail of the sliding rail is driven to slide along the lower rail of the sliding rail under the rotation of the gear. The lower rail rack and the upper rail rack are respectively connected with the gear in a meshed mode, so that the movement of the upper rail and the middle rail of the sliding rail is more controllable, the friction and collision between the middle rail and the lower rail of the sliding rail and between the middle rail and the upper rail of the sliding rail are reduced, and noise is reduced. And the gear is contacted with the upper rail surface and the lower rail surface of the sliding rail respectively, so that the relative positions of the upper rail and the lower rail surface of the sliding rail can be maintained, the left-right shaking amount of the upper rail of the sliding rail is reduced, the occurrence of noise generated by collision between the upper rail of the sliding rail and surrounding objects is avoided, and the upper rail of the sliding rail is pulled out and pushed back more easily under the action of external force.
Further, in the sliding rail assembly, the sliding rail upper rail slides along the sliding rail middle rail under the action of external force, and the upper rail rack drives the gear to rotate, so that in the process of driving the sliding rail middle rail to slide along the sliding rail lower rail under the rotation of the gear, the sliding distance of the sliding rail upper rail relative to the sliding rail lower rail is longer than the sliding distance of the gear relative to the sliding rail lower rail because the lower rail rack is always in a static state. Therefore, when the upper rail of the sliding rail slides a large distance, the gear does not need to pass through the whole lower rail of the sliding rail, so the length of the lower rail rack can be smaller than that of the lower rail of the sliding rail. Similarly, the length of the upper rail rack can be smaller than that of the upper rail of the sliding rail. The length of the lower rail rack is smaller than that of the lower rail of the sliding rail, and the length of the upper rail rack is smaller than that of the upper rail of the sliding rail, so that materials can be saved, and further the cost is saved.
Further, in the slide rail assembly of the present invention, when the length of the lower rail rack is smaller than the length of the lower rail of the slide rail and the length of the upper rail rack is smaller than the length of the upper rail of the slide rail, the lower rail rack is disposed at one end of the lower rail of the slide rail facing in the pull-out direction, and the upper rail rack is disposed at one end of the upper rail of the slide rail facing in the push-back direction, so that the upper rail of the slide rail can slide for a greater distance.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic view of a slide assembly according to one embodiment of the present invention;
FIG. 2 is a schematic view of a right side view of a slide assembly according to another embodiment of the invention;
FIG. 3 is a schematic structural view of a left side view of a slide rail assembly according to another embodiment of the present invention;
FIG. 4 is an exploded view of a slide assembly according to another embodiment of the present invention;
fig. 5 is a schematic view of a structure of a refrigerator according to another embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of a slide rail assembly 100 according to an embodiment of the present invention, see fig. 1. The track assembly 100 may include a track lower track 101, a track middle track 103, a track upper track 104, and a gear 106. The slide rail lower rail 101 is provided with a lower rail rack 102. The middle rail 103 is located above the lower rail 101 and slidably connected to the lower rail 101. The upper rail 104 is provided with an upper rail rack 105, and the upper rail 104 is positioned above the middle rail 103 and slidably connected with the middle rail 103. The gear 106 is rotatably disposed on the slide rail middle rail 103, and the gear 106 is engaged with the upper rail rack 105 and the lower rail rack 102, respectively. The upper rail 104 is suitable for sliding along the middle rail 103 under the action of external force, and drives the gear 106 to rotate through the upper rail rack 105, so that the middle rail 103 is driven to slide along the lower rail 101 under the rotation of the gear 106.
In the slide rail assembly 100 of the present embodiment, the lower rail rack 102 is in a stationary state (fixed state). The lower rail rack 102 and the upper rail rack 105 are respectively connected with the gear 106 in a meshed manner. Under the action of external force, the upper rail 104 of the sliding rail drives the upper rail rack 105 to slide, so that the upper rail rack 105 drives the gear 106 to rotate, and the middle rail 103 of the sliding rail is driven to slide along the lower rail 101 of the sliding rail under the rotation of the gear 106. Through the meshing connection of the lower rail rack 102 and the upper rail rack 105 with the gear 106 respectively, the movement of the upper rail 104 and the middle rail 103 is more controllable, the friction and collision between the middle rail 103 and the lower rail 101 and the upper rail 104 are reduced, and the noise is reduced. In addition, the gear 106 is in surface-to-surface contact with the upper rail 104 and the lower rail 101, so that the relative positions of the upper rail 104 and the lower rail 101 can be maintained, the left-right shaking amount of the upper rail 104 is reduced, noise generated by collision between the upper rail 104 and surrounding objects is avoided, and the upper rail 104 is pulled out and pushed back more easily under the action of external force.
In one embodiment of the present invention, the length of the lower track rack 102 is less than the length of the slide rail lower track 101. The length of the upper rail rack 105 is smaller than the length of the slide rail upper rail 104.
In this embodiment, the sliding rail upper rail 104 slides along the sliding rail middle rail 103 under the action of an external force, and drives the gear 106 to rotate through the upper rail rack 105, so that in the process of driving the sliding rail middle rail 103 to slide along the sliding rail lower rail 101 under the rotation of the gear 106, since the lower rail rack 102 is always in a static state, the sliding distance of the sliding rail upper rail 104 relative to the sliding rail lower rail 101 is longer than the sliding distance of the gear 106 relative to the sliding rail lower rail 101. Specifically, for example, the sliding distance of the slide rail upper rail 104 with respect to the slide rail lower rail 101 may be 2 times the sliding distance of the gear 106 with respect to the slide rail lower rail 101, i.e., the sliding distance of the slide rail upper rail 104 with respect to the slide rail lower rail 101 may be 2 times the sliding distance of the slide rail middle rail 103 with respect to the slide rail lower rail 101. Therefore, when the slide rail upper rail 104 slides a large distance, the gear 106 does not necessarily pass through the entire slide rail lower rail 101, so the length of the lower rail rack 102 may be smaller than the length of the slide rail lower rail 101. Similarly, the length of the upper rail rack 105 may be less than the length of the sliding rail upper rail 104. The length of the lower rail rack 102 is smaller than that of the lower rail 101, and the length of the upper rail rack 105 is smaller than that of the upper rail 104, so that materials and cost can be saved.
In one embodiment of the present invention, the lower rail rack 102 may be provided at one end of the slide rail lower rail 101 toward the pull-out direction. The upper rail rack 105 may be provided at one end of the slide rail upper rail 104 facing in the push-back direction.
In this embodiment, as shown in fig. 1, the schematic structural diagram of the sliding rail assembly 100 in fig. 1 is a schematic structural diagram of the sliding rail upper rail 104 after being pushed back, and the pushed back state can be understood as a reset state. When the length of the lower rail rack 102 is smaller than the length of the slide rail lower rail 101 and the length of the upper rail rack 105 is smaller than the length of the slide rail upper rail 104, the lower rail rack 102 is provided at one end of the slide rail lower rail 101 in the pull-out direction, and the upper rail rack 105 is provided at one end of the slide rail upper rail 104 in the push-back direction, so that the slide rail upper rail 104 can slide by a larger distance. In this embodiment, the sum of the lengths of the lower rail rack 102 and the upper rail rack 105 may be greater than or equal to the length of the slide rail lower rail 101. The gear 106 may be disposed at a position of the rail 103 in the slide rail corresponding to a portion where the lower rail rack 102 and the upper rail rack 105 are staggered. The lengths of the lower rail rack 102 and the upper rail rack 105 may be the same, but may be different, which is not particularly limited in the embodiment of the present invention.
In one embodiment of the present invention, the lower rail rack 102, the gear 106, and the upper rail rack 105 are provided on the same side surfaces of the slide lower rail 101, the slide middle rail 103, and the slide upper rail 104. The individual teeth of the lower track rack 102 are located on the upper surface of the lower track rack 102. The respective teeth of the upper rail rack 105 are located on the lower surface of the upper rail rack 105.
Referring to fig. 1 to 4, in one embodiment of the present invention, the side of the slide rail upper rail 104 on which the upper rail rack 105 is provided has a first protrusion 107. The upper rail 105 has a first clamping groove 108 which is adapted to the first protrusion 107. The side of the slide rail lower rail 101 on which the lower rail rack 102 is provided has a second projection 109. The lower rail rack 102 has a second clamping groove 110 which is adapted to the second projection 109. The first protrusion 107 is located in the first card slot 108. The first protrusion 107 is used to fix the upper rail rack 105 to the slide upper rail 104. The second protrusion 109 is located in the second card slot 110. The second protrusion 109 is used to fix the lower rail rack 102 to the slide rail lower rail 101.
In one embodiment of the present invention, the first protrusion 107 may be bent in a hook-like structure in the pull-out direction. The second protrusion 109 may be bent in a hook-like structure in a push-back direction. The first protrusion 107 and the second protrusion 109 of the hook structure can make the upper rail rack 105 and the lower rail rack 102 more stably fixed on the slide rail upper rail 104 and the slide rail lower rail 101.
In one embodiment of the present invention, the side surface of the slide rail upper rail 104 provided with the upper rail rack 105 has a third clamping groove 111 at one end facing in the pushing-back direction. The upper rail 105 has a third projection 112 that mates with the third detent 111. The side surface of the slide rail lower rail 101 on which the lower rail rack 102 is provided has a fourth engaging groove 113 at one end in the pull-out direction. The lower rail rack 102 has a fourth protrusion 114 that mates with the fourth detent 113. The third protrusion 112 is located in the third card slot 111. The third protrusion 112 is used to fix the upper rail rack 105 to the slide upper rail 104. The fourth protrusion 114 is located in the fourth card slot 113. The fourth protrusion 114 is used to fix the lower rail rack 102 to the slide rail lower rail 101.
In one embodiment of the present invention, the slide rail assembly 100 may further include upper and lower bead nest members 115 and 116 slidably disposed on the upper and lower surfaces of the slide rail middle rail 103, respectively. The upper ball nest member 115 has a plurality of upper ball grooves 117 therethrough. The lower ball nest member 116 has a plurality of lower ball grooves 118 therethrough. Balls (not shown) respectively connected to the slide rail middle rail 103 and the slide rail upper rail 104 are rotatably fixed in the upper ball groove 117. Balls connected to the slide rail middle rail 103 and the slide rail lower rail 101 are rotatably fixed in the lower ball groove 118.
In this embodiment, the balls on the upper ball nest 115 can be driven to rotate during the sliding process of the upper rail 104 along the middle rail 103 under the action of external force, so that the friction resistance between the upper rail 104 and the middle rail 103 is reduced, the noise is reduced, and the movement of the upper rail 104 is more stable. In the sliding process of the middle rail 103 along the lower rail 101, the balls on the lower ball nest component 116 can be driven to rotate, so that the friction resistance between the middle rail 103 and the lower rail 101 is reduced, the noise is reduced, and the movement of the middle rail 103 is more stable.
In one embodiment of the present invention, the slide rail assembly 100 may further include a base 119. The base 119 is fixedly connected to the lower surface of the lower rail 101 and is used for connecting to a support of the rail assembly 100.
Referring to fig. 5, the present invention also provides a refrigerator 200 based on the same concept. The refrigerator 200 may include a storage compartment 201, a storage container 202, and two slide rail assemblies 100 according to any of the above embodiments. Two slide rail assemblies 100 are respectively fixed at both sides of the storage compartment 201. The storage containers 202 are fixedly connected with the upper surfaces of the upper rail racks 105 of the two slide rail assemblies 100, respectively.
In the present embodiment, the storage compartment 201 may be a freezing compartment, a refrigerating compartment, or the like. The storage container 202 may be a drawer. Under the action of external force, the upper rail 104 of the sliding rail drives the upper rail rack 105 to slide, so that the upper rail rack 105 drives the gear 106 to rotate, and then the middle rail 103 of the sliding rail is driven to slide along the lower rail 101 of the sliding rail under the rotation of the gear 106, and the storage container 202 is pulled out or pushed back from the storage compartment 201. Through the meshing connection of the lower rail rack 102 and the upper rail rack 105 with the gear 106 respectively, the movement of the upper rail 104 and the middle rail 103 is more controllable, the friction and collision between the middle rail 103 and the lower rail 101 and the upper rail 104 are reduced, and the noise is reduced. In addition, the gear 106 is in surface-to-surface contact with the upper rail 104 and the lower rail 101, so that the relative positions of the upper rail 104 and the lower rail 101 can be maintained, the left-right shaking amount of the upper rail 104 is reduced, the occurrence of noise generated by collision between the upper rail 104 and the storage compartment 201 is avoided, and the storage container 202 is pulled out and pushed back more easily. In addition, in the process of pushing and pulling the storage container 202, the two sliding rail assemblies 100 adopting the gear-rack structure can synchronously move, so that the problems of distortion, left-right shaking and the like caused by inconsistent movement of the two sliding rail assemblies 100 are avoided.
In some other embodiments, the sliding rail assembly 100 may also be applied to articles such as a wardrobe, a desk, etc., which is not particularly limited in the embodiments of the present invention.
The above embodiments may be combined arbitrarily, and according to any one of the above preferred embodiments or a combination of a plurality of preferred embodiments, the following beneficial effects can be achieved according to the embodiments of the present invention:
in the slide rail assembly 100 of the present embodiment, the lower rail rack 102 and the upper rail rack 105 are respectively engaged with the gear 106. Under the action of external force, the upper rail 104 of the sliding rail drives the upper rail rack 105 to slide, so that the upper rail rack 105 drives the gear 106 to rotate, and the middle rail 103 of the sliding rail is driven to slide along the lower rail 101 of the sliding rail under the rotation of the gear 106. Through the meshing connection of the lower rail rack 102 and the upper rail rack 105 with the gear 106 respectively, the movement of the upper rail 104 and the middle rail 103 is more controllable, the friction and collision between the middle rail 103 and the lower rail 101 and the upper rail 104 are reduced, and the noise is reduced. In addition, the gear 106 is in surface-to-surface contact with the upper rail 104 and the lower rail 101, so that the relative positions of the upper rail 104 and the lower rail 101 can be maintained, the left-right shaking amount of the upper rail 104 is reduced, noise generated by collision between the upper rail 104 and surrounding objects is avoided, and the upper rail 104 is pulled out and pushed back more easily under the action of external force.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (7)

1. A slide rail assembly, comprising:
a lower rail of the sliding rail is provided with a lower rail rack;
the middle rail of the sliding rail is positioned above the lower rail of the sliding rail and is connected with the lower rail of the sliding rail in a sliding manner;
the upper rail of the sliding rail is provided with an upper rail rack, is positioned above the middle rail of the sliding rail and is slidably connected with the middle rail of the sliding rail;
the gear is rotatably arranged on the middle rail of the sliding rail and is respectively meshed with the upper rail rack and the lower rail rack;
the upper rail of the sliding rail is configured to slide along the middle rail of the sliding rail under the action of external force, and the gear is driven to rotate through the upper rail rack, so that the middle rail of the sliding rail is driven to slide along the lower rail of the sliding rail under the rotation of the gear;
the sliding distance of the upper rail of the sliding rail relative to the lower rail of the sliding rail is 2 times that of the middle rail of the sliding rail relative to the lower rail of the sliding rail;
the lower rail rack, the gear and the upper rail rack are arranged on the same side surfaces of the lower rail, the middle rail and the upper rail of the sliding rail;
the side surface of the upper rail of the sliding rail, on which the upper rail rack is arranged, is provided with a first bulge;
the upper rail rack is provided with a first clamping groove matched with the first bulge;
the side surface of the lower rail of the sliding rail, provided with the lower rail rack, is provided with a second bulge;
the lower rail rack is provided with a second clamping groove matched with the second bulge;
the first bulge is positioned in the first clamping groove and is configured to enable the upper rail rack to be fixed on the upper rail of the sliding rail;
the second bulge is positioned in the second clamping groove and is configured to enable the lower rail rack to be fixed on the lower rail of the sliding rail;
the slide rail assembly further comprises:
an upper ball nest member and a lower ball nest member slidably disposed on an upper surface and a lower surface of the slide rail, respectively;
the upper ball nest component is provided with a plurality of upper ball grooves which penetrate through the upper ball nest component;
the lower ball nest component is provided with a plurality of lower ball grooves penetrating through the lower ball nest component;
the upper ball groove is rotationally fixed with balls which are respectively connected with the middle rail of the sliding rail and the upper rail of the sliding rail;
and the lower ball groove is rotationally fixed with balls which are respectively connected with the middle rail of the sliding rail and the lower rail of the sliding rail.
2. The slide assembly of claim 1 wherein
The length of the lower rail rack is smaller than that of the lower rail of the sliding rail;
the length of the upper rail rack is smaller than that of the upper rail of the sliding rail.
3. The slide rail assembly of claim 2 wherein
The lower rail rack is arranged at one end of the lower rail of the sliding rail, which faces to the pulling-out direction;
the upper rail rack is arranged at one end of the upper rail of the sliding rail, which faces to the pushing-back direction.
4. The slide assembly of claim 1 wherein
The first bulge is bent towards the pulling-out direction to form a hook-shaped structure;
the second bulge is bent in a hook-shaped structure towards the pushing-back direction.
5. The slide assembly of claim 1 wherein
A third clamping groove is formed in one end, facing the pushing-back direction, of the side surface, provided with the upper rail rack, of the upper rail of the sliding rail;
the upper rail rack is provided with a third bulge matched with the third clamping groove;
a fourth clamping groove is formed in one end, facing the pulling-out direction, of the side surface, provided with the lower rail rack, of the sliding rail lower rail;
the lower rail rack is provided with a fourth bulge matched with the fourth clamping groove;
the third bulge is positioned in the third clamping groove and is configured to enable the upper rail rack to be fixed on the upper rail of the sliding rail;
the fourth protrusion is located in the fourth clamping groove, and the fourth protrusion is configured to enable the lower rail rack to be fixed on the lower rail of the sliding rail.
6. The slide assembly of claim 1 wherein
The slide rail assembly further comprises:
and the base is fixedly connected with the lower surface of the lower rail of the sliding rail and is used for being connected with a support of the sliding rail assembly.
7. A refrigerator, comprising:
a storage compartment;
the storage compartments are positioned at two sides of the storage compartment;
and the storage container is fixedly connected with the upper surfaces of the upper rail racks of the two sliding rail assemblies respectively.
CN202011389888.4A 2020-12-02 2020-12-02 Sliding rail assembly and refrigerator Active CN114576895B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
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CN103829618A (en) * 2012-11-23 2014-06-04 胡旭东 Gear-type transmission sliding rail
DE202014006378U1 (en) * 2014-08-01 2015-11-03 Grass Gmbh Guide device for guiding a relative to a furniture body movable furniture part
CN205994010U (en) * 2016-07-06 2017-03-08 金华纳加利厨配有限公司 A kind of Damping sliding rail with gear structure
CN206079743U (en) * 2016-07-23 2017-04-12 广东星徽精密制造股份有限公司 Balanced lazytongs of slide rail
CN208355002U (en) * 2017-11-21 2019-01-11 广州市诺米家居五金有限公司 A kind of three section sliding rails
CN210611558U (en) * 2019-07-18 2020-05-26 广东顺德梅普拉精密五金制造有限公司 Sliding rail
CN110326913A (en) * 2019-07-25 2019-10-15 佛山市顺德区澳德里金属制品有限公司 A kind of three section interlock slide rail devices of drawer
CN110973873A (en) * 2019-11-21 2020-04-10 江苏星徽精密科技有限公司 Synchronous slide rail

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