WO2018053900A1 - 可升降搁架和具有其的冰箱 - Google Patents

可升降搁架和具有其的冰箱 Download PDF

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Publication number
WO2018053900A1
WO2018053900A1 PCT/CN2016/103805 CN2016103805W WO2018053900A1 WO 2018053900 A1 WO2018053900 A1 WO 2018053900A1 CN 2016103805 W CN2016103805 W CN 2016103805W WO 2018053900 A1 WO2018053900 A1 WO 2018053900A1
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WO
WIPO (PCT)
Prior art keywords
rack
ratchet
gear
transmission rod
pawl
Prior art date
Application number
PCT/CN2016/103805
Other languages
English (en)
French (fr)
Inventor
姚君
江明波
Original Assignee
合肥华凌股份有限公司
合肥美的电冰箱有限公司
美的集团股份有限公司
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 合肥华凌股份有限公司, 合肥美的电冰箱有限公司, 美的集团股份有限公司 filed Critical 合肥华凌股份有限公司
Priority to BR112019002854-4A priority Critical patent/BR112019002854B1/pt
Priority to EP16916639.4A priority patent/EP3477231B1/en
Priority to JP2019512887A priority patent/JP6709881B2/ja
Publication of WO2018053900A1 publication Critical patent/WO2018053900A1/zh
Priority to US16/351,544 priority patent/US10578350B2/en

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    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • 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
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details

Definitions

  • the present invention relates to the field of home appliance technology, and in particular, to a liftable shelf and a refrigerator having the same.
  • the shelf of most refrigerators is a single rectangular flat glass shelf or a flat plastic shelf, and the glass shelf is placed on the ribs in the box by the structure itself and the box.
  • the ribs are fixed on top. Since the shelf is fixedly placed in the upper, middle and lower positions of the cabinet, the height and position of the shelf cannot be adjusted arbitrarily. For high and deep large-volume refrigerators, it is inconvenient to store and remove food on the uppermost shelf. .
  • Patent No. 201510149798.0 the patent name is a shelf assembly and a refrigerator, by providing a card slot on the side wall of the refrigerator, a plurality of rotary knobs are arranged in the card slot to support the shelf.
  • this design exists. It is not possible to adjust any height as needed. The height adjusted can only be the distance between the two rotary knobs.
  • the patent number is 201120239738.5, and the patent name is a patent for a refrigerator and a shelf lifting device thereof.
  • the card is arranged on the refrigerator by a plurality of card slots matching the support blocks on both sides of the shelf.
  • the shelf is fixed in the slot.
  • This design also has the disadvantage of not being able to adjust any height as needed. Moreover, when adjusting the height of the shelf, it is necessary to manually drag the shelf, which is inconvenient to operate.
  • Another example is a liftable shelf described in the patent CN01112021.5, which can be moved up and down by adjusting the shelf. The advantage of such a shelf is that the height of the shelf can be effectively adjusted to save the placement of the articles below. Space, and can effectively use the role of the shelf, however, this structure also has the disadvantages of insufficient lifting height, and the risk of screw tripping when the shelf is placed with heavy objects.
  • an object of the present invention is to provide a liftable shelf that can adjust the height of the shelf as needed, can effectively adjust the height of the movable shelf, and is convenient to adjust and has good stability.
  • a liftable shelf includes: a first rack, the first rack is vertically disposed; a second rack, the second rack is parallel to the first rack, and a tooth surface of the second rack is disposed opposite to a tooth surface of the first rack; a first gear and a second gear meshing with each other, the first gear and the second gear are disposed at the first Between the rack and the second rack, and the first gear meshes with the first rack, the second gear meshes with the second rack; a fixing plate, the fixing plate is disposed at a first side of the first rack and the second rack in a width direction, and the fixing plate is movable along a length direction of the first rack and the second rack, wherein the first a second gear is rotatably coupled to the fixed plate by a first rotating shaft; a first transmission rod, one end of the first transmission rod passes through the fixing plate and is fixedly connected to the first gear, the first a transmission rod is rotatable about a central axis of the first transmission rod
  • the first transmission rod is rotated, and the axial rotation of the first transmission rod drives the rotation of the first gear, thereby driving the rotation of the second gear that meshes with the first gear, so that the first gear and The second gear can be moved up and down along the length direction of the first rack and the second rack, and then the first transmission rod is locked by the locking device, and the height of the liftable rack is positioned to effectively adjust the activity as needed.
  • the height of the shelf is easy to adjust and the stability of the gear connection is good.
  • the locking device is a first ratchet mechanism
  • the first ratchet mechanism includes: a first ratchet, the first ratchet sleeve is disposed on the first transmission rod; a pawl, the first pawl being disposed on the fixed plate by a second rotating shaft, the first pawl being detachably engaged with the first ratchet to lock and release the first transmission rod.
  • the liftable shelf further includes: a second transmission rod, one end of the second transmission rod is rotatably coupled to the fixed plate; a ratchet stop block, the ratchet stop a stopper fixed to the second transmission rod, the ratchet stopper for adjusting the first pawl to be detachably engaged with the first ratchet, and adapted to be driven when the second transmission lever is rotated
  • the ratchet stop abuts the first pawl to separate the first pawl from the first ratchet.
  • the fixing plate is provided with a first tension spring, and the first tension spring is disposed between the first ratchet and the first pawl, the first tension spring One end is fixed to the fixing plate, the other end of the first tension spring is fixedly connected with a middle portion of the first pawl, and the first tension spring is used for pulling the first pawl and the first The ratchet abuts.
  • an end of the first transmission rod remote from the first gear is provided with a first rotating handle.
  • the first rotating handle is provided with a second ratchet mechanism
  • the second ratchet mechanism includes: a second ratchet, the second ratchet sleeve is disposed on the first transmission rod; a second pawl, one end of the second pawl being rotatably coupled to the first rotating handle via a third rotating shaft; a second tension spring disposed on the second ratchet and Between the second pawls, one end of the second tension spring is fixedly connected to the first rotating handle, and the other end of the second tension spring is connected to a middle portion of the second pawl, the second The tension spring drives the second pawl to abut the second ratchet.
  • the first rack and the second rack are respectively provided with vertically extending guide grooves on opposite sides of the second rack, and both sides of the fixing plate are movable Provided in the guide grooves of the first rack and the second rack.
  • an end of the second transmission rod remote from the ratchet stop block is provided with a second rotation handle.
  • a refrigerator according to a second aspect of the present invention comprising: a refrigerator body; the liftable shelf according to the above first aspect of the present invention, wherein the liftable shelf is disposed in the refrigerator body, and the liftable shelf is provided with a shelf board.
  • the refrigerator body is provided with a vertically disposed guide post that passes through and protrudes from the shelf.
  • FIG. 1 is a schematic perspective view showing the structure of a liftable shelf according to an embodiment of the present invention
  • FIG. 2 is another perspective structural view of a liftable shelf according to an embodiment of the present invention, showing the internal structure of the first rotating handle;
  • FIG. 3 is still another perspective structural view of a liftable shelf according to an embodiment of the present invention, in which a first rack and a fixed plate are not shown;
  • FIG. 4 is still another perspective structural view of a liftable shelf according to an embodiment of the present invention, in which the first rack A and the fixed plate are not shown;
  • Figure 5 is a top plan view of a liftable shelf in accordance with an embodiment of the present invention.
  • Figure 6 is a cross-sectional view taken along line A-A of Figure 5;
  • Figure 7 is a rear elevational view of a liftable shelf in accordance with an embodiment of the present invention.
  • FIG. 8 is a schematic view showing the installation of a first ratchet mechanism in a liftable shelf according to an embodiment of the present invention, wherein the first pawl locks the first ratchet;
  • FIG. 9 is another schematic view of the mounting of the first ratchet mechanism in the liftable shelf according to an embodiment of the present invention, wherein the first pawl is disengaged from the first ratchet;
  • FIG. 10 is a schematic structural view of a refrigerator according to an embodiment of the present invention.
  • Figure 11 is a schematic view of a partition in a refrigerator mounted on a liftable shelf according to an embodiment of the present invention
  • Figure 12 is a schematic view showing the structure of a refrigerator in accordance with another embodiment of the present invention.
  • first and second are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may include one or more of the features either explicitly or implicitly. Further, in the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specified.
  • a liftable shelf according to an embodiment of the first aspect of the present invention will now be described with reference to Figs.
  • a liftable shelf according to an embodiment of the first aspect of the present invention includes a first rack 1, a second rack 2, a first gear, a second gear 4, a fixed plate 5, and a first A transmission rod 7 and a locking device.
  • the first rack 1 is vertically disposed, and the second rack 2 is parallel to the first rack 1, and the second rack 2 is also vertically disposed, and the second rack 2 is provided.
  • the tooth flanks are disposed opposite to the tooth flanks of the first rack 1.
  • the first gear 3 and the second gear 4 are disposed between the first rack and the second rack 2, and the first gear 3 meshes with the first rack 1, and the second gear 4 meshes with the second rack 2, and The first gear 3 and the second gear 4 mesh with each other.
  • the fixing plate 5 is disposed on the same side in the width direction of the first rack 1 and the second rack 2, and the fixing plate 5 is movable along the longitudinal direction of the first rack and the second rack 2, wherein the second gear 4
  • the fixing plate 5 is rotatably connected by the first rotating shaft 6.
  • One end of the first transmission rod 7 passes through the fixing plate 5 and is fixedly connected to the first gear 3, and the first transmission rod 7 is rotatable around the central axis of the first transmission rod 7.
  • a locking device is provided on the fixed plate 5 for locking and releasing the first transmission rod 7.
  • the first gear 3 is meshed with the first rack 1 and the second gear 4, respectively, and the second gear 4 and the second rack 2 are meshed; the first rack 1 and the second rack 2 slide sideways.
  • the fixing plate 5 is provided with a first transmission rod 7 having one end passing through and extending the fixing plate 5, the first transmission rod 7 is axially rotatable, one end of the first transmission rod 7 is fixedly connected with the center of the first gear 3; the fixing plate 5 is provided with locking means for locking and releasing the first transmission rod 7.
  • the first transmission rod 7 is rotated, and the axial rotation of the first transmission rod 7 drives the rotation of the first gear 3, thereby driving the second gear 4 that meshes with the first gear 3.
  • Rotating so that the first gear 3 and the second gear 4 can move up and down along the length direction of the first rack 1 and the second rack 2, and then lock the first transmission rod 7 by the locking device, and can be lifted and lowered.
  • the height of the frame is positioned to effectively adjust the height of the movable shelf as needed, the adjustment is convenient, and the gear connection is used for stability.
  • the locking device is a first ratchet mechanism 8, the first ratchet mechanism 8 comprising: a first ratchet 8-1 and a first pawl 8-2, the first ratchet 8-1 being sleeved On a transmission rod 7, the first pawl 8-2 is disposed on the fixed plate 5 through the second rotating shaft 6, and the first pawl 8-2 is detachably engaged with the first ratchet 8-1 to lock and release The first transmission rod 7.
  • the locking device is a first ratchet mechanism 8, and the first ratchet mechanism 8 includes a first ratchet 8-1 and a lock for locking the first ratchet 8-1.
  • the first pawl 8-2 is rotated, and the first ratchet 8-1 is sleeved on the first transmission rod 7.
  • the axial rotation of the first transmission rod 7 drives the first ratchet 8-1 to rotate along the central axis thereof.
  • the pawl 8-2 is provided on the fixed plate 5 via the second rotating shaft 6.
  • the locking device adopts the first ratchet mechanism 8 so that the first transmission rod 7 can be unidirectionally rotated. For example, as shown in FIG.
  • the first transmission rod 7 is rotatable in reverse so that the first gear 3 and the second gear 4 can move upward; when it is required to move downward, the first pawl 8-2 is adjusted such that the first pawl 8 -2 is disengaged from the first ratchet 8-1, and under the action of gravity, the first gear 3 and the second gear 4 can drive the first transmission rod 7 to move downward, and adjust the first pawl 8-2 lock when the required position is reached.
  • the first ratchet 8-1 is tightened to achieve positioning.
  • the liftable shelf further comprises: a second drive rod 9 and a ratchet stop block 10, one end of the second drive rod 9 being rotatably coupled to the fixed plate 5, the ratchet stop block 10 being fixed
  • the ratchet stop block 10 is for adjusting the first pawl 8-2 to be detachably engaged with the first ratchet 8-1, and is adapted to drive the ratchet stop when the second transmission rod 9 is rotated.
  • the first pawl is pressed against the first pawl 8-2 from the first ratchet 8-1. For example, as shown in FIGS.
  • the liftable shelf further includes a second transmission rod 9 and a ratchet for adjusting the first pawl 8-2 to approach and away from the first ratchet 8-1.
  • the stop block 10 one end of the second transmission rod 9 is movably connected to the fixed plate 5, the ratchet stop block 10 is fixed on the second transmission rod 9, and the axial rotation of the second transmission rod 9 drives the ratchet stop block 10 to The first pawl 8-2 is pressed such that the first pawl 8-2 is away from the first ratchet 8-1.
  • the second pawl 9 is rotated to drive the ratchet stop 10 against the first pawl 8-2, so that the first pawl 8-2 is separated from the first ratchet 8-1, and the operation is convenient.
  • the fixing plate 5 is provided with a first tension spring 11 which is disposed between the first ratchet 8-1 and the first pawl 8-2.
  • One end of the first tension spring 11 is fixed on the fixing plate 5, and the other end of the first tension spring 11 is fixedly connected with the middle of the first pawl 8-2, and the first tension spring 11 is used for pulling the first pawl 8- 2 abuts the first ratchet 8-1.
  • the first tension spring 11 is arranged to facilitate the resetting of the first pawl 8-2 to the locking first ratchet 8-1, and the first pawl 8-2 is disengaged from the first ratchet 8-1 such that the first gear 3
  • the second transmission rod 9 is released, and under the action of the first tension spring 11, the first pawl 8-2 is reset, and the first ratchet 8-1 is re-locked to achieve positioning. .
  • an end of the first transmission rod 7 remote from the first gear 3 may be provided with a first rotating handle 13.
  • the setting of the first turning handle 13 facilitates the rotation of the first transmission lever 7.
  • the first rotating handle 13 is provided with a second ratchet mechanism 14, and the second ratchet mechanism 14 includes a second ratchet 14-1, a second pawl 14-2 and a The second tension spring 14-3, the second ratchet 14-1 is sleeved on the first transmission rod 7, the axial rotation of the first transmission rod 7 drives the second ratchet 14-1 to rotate axially, and the second pawl 14-2
  • One end of the second pawl 14 is rotatably connected to the first rotating handle 13 via the third rotating shaft 6, that is, one end of the second pawl 14-2 is movably connected to the first rotating handle 13 via the third rotating shaft 6, and the second tension spring 14 is connected.
  • the second tension spring 14-3 is disposed between the second ratchet 14-1 and the second pawl 14-2, one end of the second tension spring 14-3 is fixedly coupled to the first rotating handle 13, and the other end of the second tension spring 14-3 is connected In the middle of the second pawl 14-2, the second tension spring 14-3 drives the second pawl 14-2 to abut the second ratchet 14-1.
  • the second ratchet mechanism 14 is disposed in the first rotating handle 13, so that the first rotating handle 13 can be rotated to be reset after the rotation.
  • a second rotating handle 12 may be disposed at one end of the second transmission rod 9 away from the ratchet stop 10. Thereby, the arrangement of the second rotary handle 12 facilitates the rotation of the second transmission lever 9.
  • the first rack 1 and the second rack 2 are vertically disposed on opposite sides of each other.
  • the extending guide grooves 15 and the side edges of the fixing plate 5 are movably disposed in the guide grooves 15 of the first rack 1 and the second rack 2. That is, the opposite sides of the first rack 1 and the second rack 2 are provided with vertically disposed guiding grooves 15 , and both sides of the fixing plate 5 are slidably disposed in the guiding grooves 15 .
  • the arrangement of the guiding groove 15 can guide the movement of the fixing plate 5, improve the stability of the fixing plate 5, and the baffle 19 can be arranged to protect the first ratchet mechanism 8 from water falling into the first On the ratchet mechanism 8.
  • the periphery of the fixing plate 5 is provided with a shutter 19 for protecting the first ratchet mechanism 8.
  • the baffle 19 is arranged to protect the first ratchet mechanism 8 from water falling into the first ratchet mechanism 8.
  • the working principle of the lifting and lowering shelf is: rotating the first rotating handle 13 counterclockwise, the first rotating handle 13 drives the first ratchet 8-1 and the first gear 3 to rotate counterclockwise, and the first gear 3 drives The second gear 4 rotates clockwise, so that the first gear 3 and the second gear 4 roll upward along the first rack 1 and the second rack 2, thereby driving the fixed plate 5 and the first transmission rod 7 and the second transmission rod 9 Move up to achieve the rise of the liftable shelf. Due to the one-way rotation characteristic of the first ratchet mechanism 8, the first pawl 8-2 locks the first ratchet 8-1 when the liftable shelf is raised to the designated position, as shown in FIG.
  • the first ratchet 8-1 cannot be rotated clockwise, so that the first gear 3 cannot be rotated, and the liftable shelf does not fall.
  • the second ratchet mechanism 14 is configured such that the second ratchet 14-1 does not rotate the first transmission rod 7 when rotated clockwise in FIG. 6, so that when the first rotating handle 13 drives the first After the driving rod 7 rotates counterclockwise, the first rotating handle 13 can be returned, and the first transmission rod 7 does not rotate during the returning process.
  • the second rotating handle 12 When the lifting shelf is required to be lowered, the second rotating handle 12 is rotated clockwise to drive the second transmission lever 9 to rotate clockwise, thereby driving the ratchet stopper 10 against the first pawl 8-2, so that the first pawl 8-2 is disengaged from the first ratchet 8-1, as shown in FIG. 9, at this time, the locking of the first ratchet 8-1 by the first pawl 8-2 is disabled, and under the action of gravity, the first gear 3 is clockwise. Rotating, the second gear 4 rotates counterclockwise to drive the first transmission rod 7 and the second transmission rod 9 to move downward. When moving to the required position, the second rotation handle 12 is released, under the action of the first tension spring 11. The first pawl 8-2 is pressed against the first ratchet 8-1 to achieve re-locking of the first ratchet 8-1, and functions as an automatic emergency brake.
  • a refrigerator according to an embodiment of the second aspect of the present invention includes a refrigerator body 16 and a liftable shelf according to the above-described first aspect of the present invention.
  • the liftable shelf is disposed in the refrigerator body 16, and the shelf 17 is provided on the liftable shelf.
  • the first drive rod 7 can be rotated first, and the axial rotation of the first drive rod 7 drives the rotation of the first gear 3, thereby driving the rotation of the second gear 4 that meshes with the first gear 3.
  • the first gear 3 and the second gear 4 are moved up and down along the longitudinal direction of the first rack 1 and the second rack 2, and then the first transmission rod 7 is locked by the locking device to position the height to realize It is necessary to effectively adjust the height of the movable shelf, the adjustment is convenient, and the gear connection is stable.
  • the second rotating handle 12 on the right side is loosened, the first ratchet 8-1 is braked and reset by the elastic force of the first tension spring 11 being stretched, so that the brake can be lifted and lowered to prevent lifting and lowering.
  • the accidental decline was smooth.
  • a liftable shelf is arranged in the refrigerator body 16, and the height and position of the liftable shelf can be adjusted at will. For the high and deep large-volume refrigerator, it is convenient to store and take out the food on the uppermost shelf.
  • a liftable shelf is arranged in the refrigerator body 16, and the height and position of the liftable shelf can be adjusted at will.
  • the uppermost layer can be conveniently stored and taken out. Lifting shelf Things.
  • a vertically disposed guide post 18 is provided in the refrigerator body 16, and the guide post 18 passes through and protrudes from the shelf 17.
  • the arrangement of the guide post 18 can guide the movement of the shelf 17, ensuring the stability of the movement of the partition 17.
  • the first transmission rod 7 and the second transmission rod 9 are on the same horizontal plane, and the partition plate 17 is placed on the first transmission rod 7 and the second transmission rod 9, and is disposed on the partition plate 17. There is a hole through which the guide post 18 passes.
  • the liftable shelf according to the present invention may be disposed in the middle of the interior of the refrigerator body 16, and a fixed partition 17 is respectively disposed above and below the liftable shelf.
  • a fixed partition 17 is respectively disposed above and below the liftable shelf.

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  • 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)
  • Refrigerator Housings (AREA)
  • Display Racks (AREA)

Abstract

一种可升降搁架和冰箱，搁架包括竖直设置且平行的第一齿条（1）和第二齿条（2），两者的齿面相对设置，第一齿条（1）和第二齿条（2）之间设有相互啮合的第一齿轮（3）和第二齿轮（4），且第一齿轮（3）与第一齿条（1）啮合，第二齿轮（4）与第二齿条（2）啮合；第二齿轮（4）通过第一转动轴（6）可转动地连接在可移动固定板（5）上，第一传动杆（7）一端穿过固定板（5）且与第一齿轮（3）固定连接，且第一传动杆（7）绕其中心轴线可转动，锁紧装置设置在固定板（5）上用于锁紧和放开第一传动杆（7）。

Description

可升降搁架和具有其的冰箱 技术领域
本发明涉及家电技术领域，尤其涉及一种可升降搁架和具有其的冰箱。
背景技术
相关技术中，大部分冰箱的搁架为单一的长方形平板玻璃搁架或者是平板状的塑料搁架，玻璃搁架通过本身和箱胆配合的结构放在箱胆内的筋条上或卡在筋条上面固定起来。由于搁架是固定的放置在箱体的上中下位置，不能随意调节搁架的高度和位置，对于高、深的大容积冰箱来说，最上层的搁架上存放和取出食物很不方便。
目前市场上有少量品牌的冰箱推出了可升降搁架的冰箱，以满足客户对不同高度食物及其他用品的存放需求。如专利号201510149798.0，专利名称为搁架组件及冰箱的专利中，通过在冰箱的侧壁上设置卡槽，在卡槽内间隔设置多个旋转旋钮以支撑搁板，然而，这种设计存在着无法按照需要调节任意高度，所调节的高度只能是两个旋转旋钮之间的间距。类似地，专利号为201120239738.5，专利名称为冰箱及其搁架升降装置的专利中，通过在冰箱上设置多个与搁架两侧的支撑块相匹配的卡槽，通过支撑块卡设在卡槽内对搁架进行固定，这种设计同样存在着无法按照需要调节任意高度的不足，而且，在调节搁架的高度时，需要手动拖住搁架，操作不方便。又如，专利CN01112021.5中描述的一种可升降式搁架，通过调节可整体上下移动搁架，此类搁架的优点是能有效地调节搁架的高度，为下方的物品摆放节省空间，并且能有效地利用搁架的作用，然而，这种结构也存在着升降高度不足，以及搁架放置重物时，会出现丝杠脱扣的危险等缺点。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明的一个目的在于提出一种可升降搁架，能根据需要调节搁架的高度，可以有效调节活动搁架的高度，且调节方便，稳定性好。
本发明的一个目的在于提出一种具有上述可升降搁架的冰箱。
根据本发明第一方面的可升降搁架，包括：第一齿条，所述第一齿条竖直设置；第二齿条，所述第二齿条与所述第一齿条平行，且所述第二齿条的齿面与所述第一齿条的齿面相对设置；相互啮合的第一齿轮和第二齿轮，所述第一齿轮和所述第二齿轮设在所述第一齿条和所述第二齿条之间，且所述第一齿轮与所述第一齿条啮合，所述第二齿轮与所述第二齿条啮合；固定板，所述固定板设在所述第一齿条和所述第二齿条的宽度方向上的同一侧，且所述固定板沿所述第一齿条和所述第二齿条的长度方向可移动，其中所述第二齿轮通过第一转动轴可转动地连接在所述固定板上；第一传动杆，所述第一传动杆的一端穿过所述固定板且与所述第一齿轮固定连接，所述第一传动杆绕所述第一传动杆的中心轴线可转动；锁紧装置，所述锁紧装置设在所述固定板上以用于锁紧和放开所述第一传动杆。
根据本发明的可升降搁架，转动第一传动杆，第一传动杆的轴向转动带动第一齿轮的转动，从而带动与第一齿轮齿合的第二齿轮的转动，使得第一齿轮以及第二齿轮可以沿第一齿条和第二齿条的长度方向上下移动，然后通过锁紧装置对第一传动杆进行锁紧，对可升降搁架的高度进行定位，实现根据需要有效调节活动搁架的高度，调节方便，并且采用齿轮连接的方式稳定性好。
根据本发明的其中一个示例，所述锁紧装置为第一棘轮机构，所述第一棘轮机构包括：第一棘轮，所述第一棘轮套设在所述第一传动杆上；第一棘爪，所述第一棘爪通过第二转动轴设在所述固定板上，所述第一棘爪与所述第一棘轮可分离地配合以锁紧和放开所述第一传动杆。
根据本发明的其中一个示例，所述可升降搁架还包括：第二传动杆，所述第二传动杆的一端可转动地连接在所述固定板上；棘轮止挡块，所述棘轮止挡块固定在所述第二传动杆上，所述棘轮止挡块用于调节所述第一棘爪与所述第一棘轮可分离地配合，当所述第二传动杆转动时适于带动所述棘轮止挡块抵压所述第一棘爪以使所述第一棘爪与所述第一棘轮分离。
根据本发明的其中一个示例，所述固定板上设有第一拉簧，所述第一拉簧设在所述第一棘轮和所述第一棘爪之间，所述第一拉簧的一端固定在所述固定板上，所述第一拉簧的另一端与所述第一棘爪的中部固定连接，所述第一拉簧用于拉动所述第一棘爪与所述第一棘轮抵接。
根据本发明的其中一个示例，所述第一传动杆的远离所述第一齿轮的一端设有第一转动手柄。
根据本发明的其中一个示例，所述第一转动手柄上设有第二棘轮机构，所述第二棘轮机构包括：第二棘轮，所述第二棘轮套设在所述第一传动杆上；第二棘爪，所述第二棘爪的一端通过第三转动轴可转动地连接在所述第一转动手柄上；第二拉簧，所述第二拉簧设在所述第二棘轮和所述第二棘爪之间，所述第二拉簧的一端与所述第一转动手柄固定连接，所述第二拉簧的另一端连接所述第二棘爪的中部，所述第二拉簧带动所述第二棘爪与所述第二棘轮抵接。
根据本发明的其中一个示例，所述第一齿条和所述第二齿条的彼此相对的一侧上均设有竖直延伸的导向槽，所述固定板的两侧边均可移动地设在所述第一齿条和所述第二齿条的所述导向槽内。
根据本发明的其中一个示例，所述第二传动杆的远离所述棘轮止挡块的一端设有第二转动手柄。
根据本发明第二方面的冰箱，包括：冰箱本体；根据本发明上述第一方面的可升降搁架，所述可升降搁架设在所述冰箱本体内，所述可升降搁架上设有搁板。
根据本发明的其中一个示例，所述冰箱本体内设有竖直设置的导向柱，所述导向柱穿过并伸出所述搁板。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得 明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本发明实施例的可升降搁架的立体结构示意图；
图2是根据本发明实施例的可升降搁架的另一个立体结构示意图，其中示出了第一转动手柄的内部结构；
图3是根据本发明实施例的可升降搁架的再一个立体结构示意图，其中未示出第一齿条和固定板；
图4是根据本发明实施例的可升降搁架的又一个立体结构示意图，其中未示出第一齿条A和固定板；
图5是根据本发明实施例的可升降搁架的俯视图；
图6是沿图5中A-A线的剖面图；
图7是根据本发明实施例的可升降搁架的后视图；
图8是根据本发明实施例的可升降搁架中第一棘轮机构的安装示意图，其中第一棘爪锁紧第一棘轮；
图9是根据本发明实施例的可升降搁架中第一棘轮机构的另一个安装示意图，其中第一棘爪脱离第一棘轮；
图10是根据本发明实施例的冰箱的结构示意图；
图11是根据本发明实施例的冰箱中隔板安装在可升降搁架上的示意图；
图12是根据本发明另一个实施例的冰箱的结构示意图。
附图标记：
1、第一齿条，2、第二齿条，3、第一齿轮，4、第二齿轮，5、固定板，6、第一转动轴，6、第三转动轴，7、第一传动杆，8、第一棘轮机构，8-1、第一棘轮，8-2、第一棘爪，9、第二传动杆，10、棘轮止挡块，11、第一拉簧，12、第二转动手柄，13、第一转动手柄，14、第二棘轮机构，14-1、第二棘轮，14-2、第二棘爪，14-3、第二拉簧，15、导向槽，16、冰箱本体，17、搁板，18、导向柱，19、挡板。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述， 而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
需要说明的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。进一步地，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
下面参考图1-图9描述根据本发明第一方面实施例的可升降搁架。
如图1-图9所示，根据本发明第一方面实施例的可升降搁架，包括第一齿条1、第二齿条2、第一齿轮、第二齿轮4、固定板5、第一传动杆7以及锁紧装置。
如图1-图9所示，第一齿条1竖直设置，第二齿条2与第一齿条1平行，此时第二齿条2也是竖直设置的，且第二齿条2的齿面与第一齿条1的齿面相对设置。第一齿轮3和第二齿轮4设在第一齿条和第二齿条2之间，且第一齿轮3与第一齿条1啮合，第二齿轮4与第二齿条2啮合，且第一齿轮3和第二齿轮4相互啮合。固定板5设在第一齿条1和第二齿条2的宽度方向上的同一侧，且固定板5沿第一齿条和第二齿条2的长度方向可移动，其中第二齿轮4通过第一转动轴6可转动地连接在固定板5上。第一传动杆7的一端穿过固定板5且与第一齿轮3固定连接，第一传动杆7绕第一传动杆7的中心轴线可转动。锁紧装置设在固定板5上以用于锁紧和放开第一传动杆7。
也就是说，第一齿轮3分别与第一齿条1和第二齿轮4齿合，第二齿轮4和第二齿条2齿合；第一齿条1和第二齿条2一侧滑动连接一固定板5，第二齿轮4通过第一转动轴6活动连接在固定板5上，固定板5上设有一端穿过并伸出固定板5的第一传动杆7，第一传动杆7可轴向转动，第一传动杆7的一端与第一齿轮3的中心固定连接；固定板5上设有用于锁紧和放开第一传动杆7的锁紧装置。
根据本发明实施例的可升降搁架，转动第一传动杆7，第一传动杆7的轴向转动带动第一齿轮3的转动，从而带动与第一齿轮3齿合的第二齿轮4的转动，使得第一齿轮3以及第二齿轮4可以沿第一齿条1和第二齿条2的长度方向上下移动，然后通过锁紧装置对第一传动杆7进行锁紧，对可升降搁架的高度进行定位，实现根据需要有效调节活动搁架的高度，调节方便，并且采用齿轮连接的方式稳定性好。
根据本发明的一个实施例，锁紧装置为第一棘轮机构8，第一棘轮机构8包括：第一棘轮8-1和第一棘爪8-2，第一棘轮8-1套设在第一传动杆7上，第一棘爪8-2通过第二转动轴6设在固定板5上，第一棘爪8-2与第一棘轮8-1可分离地配合以锁紧和放开第一传动杆7。例如，如图2、图3、图4、图5所示，锁紧装置为第一棘轮机构8，第一棘轮机构8包括第一棘轮8-1和用于锁止第一棘轮8-1转动的第一棘爪8-2，第一棘轮8-1套设在第一传动杆7上，第一传动杆7的轴向转动带动第一棘轮8-1沿其中心轴线转动，第一棘爪8-2通过第二转动轴6设在固定板5上。由此，锁紧装置采用第一棘轮机构8，使得第一传动杆7能够单向转动，例如，如图3所示，当第一棘爪8-2与第一棘轮8-1配合时可以锁紧第一传动杆7，使得第一传动杆7不能顺时针转动，而当第一棘爪8-2与第一棘轮8-1分 离时，此时第一棘轮8-1被释放，第一传动杆7可以顺时针转动。在本申请中，第一传动杆7能够逆向转动，使得第一齿轮3和第二齿轮4能够向上移动；当需要向下移动时，调节第一棘爪8-2，使得第一棘爪8-2脱离第一棘轮8-1，在重力的作用下，第一齿轮3和第二齿轮4可以带动第一传动杆7向下移动，当到达需要位置后调节第一棘爪8-2锁紧第一棘轮8-1，实现定位。
根据本发明的进一步实施例，可升降搁架还包括：第二传动杆9和棘轮止挡块10，第二传动杆9的一端可转动地连接在固定板5上，棘轮止挡块10固定在第二传动杆9上，棘轮止挡块10用于调节第一棘爪8-2与第一棘轮8-1可分离地配合，当第二传动杆9转动时适于带动棘轮止挡块10抵压第一棘爪以使第一棘爪8-2与第一棘轮8-1分离。例如，如图5、图7、图8、图9所示，可升降搁架还包括第二传动杆9和用于调节第一棘爪8-2靠近和远离第一棘轮8-1的棘轮止挡块10，第二传动杆9的一端活动连接在固定板5上，棘轮止挡块10固定在第二传动杆9上，第二传动杆9的轴向转动带动棘轮止挡块10抵压第一棘爪8-2，从而使得第一棘爪8-2远离第一棘轮8-1。由此，当需要第一棘爪8-2脱离第一棘轮8-1时，通过转动第二传动杆9，带动棘轮止挡块10抵压第一棘爪8-2，使得第一棘爪8-2脱离第一棘轮8-1，操作方便。
进一步地，如图3、图4和图8所示，固定板5上设有第一拉簧11，第一拉簧11设在第一棘轮8-1和第一棘爪8-2之间，第一拉簧11的一端固定在固定板5上，第一拉簧11的另一端与第一棘爪8-2的中部固定连接，第一拉簧11用于拉动第一棘爪8-2与第一棘轮8-1抵接。由此，第一拉簧11的设置能方便第一棘爪8-2复位至锁紧第一棘轮8-1，在第一棘爪8-2脱离第一棘轮8-1使得第一齿轮3和第二齿轮4下降到需要位置后，松开第二传动杆9，在第一拉簧11的作用下，第一棘爪8-2复位，重新锁紧第一棘轮8-1，实现定位。
如图1-图4所示，第一传动杆7的远离第一齿轮3的一端可以设有第一转动手柄13。由此，第一转动手柄13的设置方便转动第一传动杆7。
根据本发明的进一步实施例，如图6所示，第一转动手柄13上设有第二棘轮机构14，第二棘轮机构14包括第二棘轮14-1、第二棘爪14-2和第二拉簧14-3，第二棘轮14-1套设在第一传动杆7上，第一传动杆7的轴向转动带动第二棘轮14-1轴向转动，第二棘爪14-2的一端通过第三转动轴6可转动地连接在第一转动手柄13上，即第二棘爪14-2的一端通过第三转动轴6与第一转动手柄13活动连接，第二拉簧14-3设在第二棘轮14-1和第二棘爪14-2之间，第二拉簧14-3的一端与第一转动手柄13固定连接，第二拉簧14-3的另一端连接第二棘爪14-2的中部，第二拉簧14-3带动第二棘爪14-2与第二棘轮14-1抵接。由此，在第一转动手柄13内设置第二棘轮机构14，方便转动第一转动手柄13在转动后能够复位。
如图1-图4所示，第二传动杆9远离棘轮止挡块10的一端可以设有第二转动手柄12。由此，第二转动手柄12的设置方便转动第二传动杆9。
可选地，如图1-图3所示，第一齿条1和第二齿条2的彼此相对的一侧上均设有竖直 延伸的导向槽15，固定板5的两侧边均可移动地设在第一齿条1和第二齿条2的导向槽15内。也就是说，第一齿条1和第二齿条2相对的一侧上均设有竖直设置的导向槽15，固定板5的两侧边均滑动设在导向槽15内。由此，导向槽15的设置能对固定板5的移动进行导向，提高固定板5的稳定性，挡板19的设置能对第一棘轮机构8进行保护，避免有水进入滴落到第一棘轮机构8上。
进一步地，如图1和图3所示，固定板5的周边设有保护第一棘轮机构8的挡板19。由此，挡板19的设置能对第一棘轮机构8进行保护，避免有水进入滴落到第一棘轮机构8上。
根据本发明实施例的可升降搁架的工作原理为：逆时针转动第一转动手柄13，第一转动手柄13带动第一棘轮8-1和第一齿轮3逆时针转动，第一齿轮3带动第二齿轮4顺时针转动，使得第一齿轮3和第二齿轮4沿着第一齿条1和第二齿条2向上滚动，从而带动固定板5以及第一传动杆7和第二传动杆9向上移动，实现可升降搁架的上升。由于第一棘轮机构8的单向旋转特点，当可升降搁架上升到指定位置后，第一棘爪8-2对第一棘轮8-1进行锁止，如图8所示，被锁止的第一棘轮8-1无法顺时针转动，从而第一齿轮3无法转动，可升降搁架就不会下降。如图6所示，第二棘轮机构14的结构设置使得第二棘轮14-1沿图6中的顺时针转动时不会带动第一传动杆7转动，所以，当第一转动手柄13带动第一传动杆7逆时针转动后，可以对第一转动手柄13进行回位，在回位的过程中第一传动杆7不会转动。当需要可升降搁架下降时，顺时针转动第二转动手柄12，带动第二传动杆9顺时针转动，从而带动棘轮止挡块10抵压第一棘爪8-2，使得第一棘爪8-2脱离第一棘轮8-1，如图9所示，此时第一棘爪8-2对第一棘轮8-1的锁止失效，在重力的作用下，第一齿轮3顺时针转动，第二齿轮4逆时针转动，带动第一传动杆7和第二传动杆9向下移动，当移动到需要位置后，松开第二转动手柄12，在第一拉簧11的作用下，第一棘爪8-2复位与第一棘轮8-1抵压，实现对第一棘轮8-1的重新锁止，起到自动紧急刹车的作用。
如图10-图12所示，根据本发明第二方面实施例的冰箱，包括冰箱本体16和根据本发明上述第一方面实施例的可升降搁架。其中，可升降搁架设在冰箱本体16内，可升降搁架上设有搁板17。
调整可升降搁架时，可以首先转动第一传动杆7，第一传动杆7的轴向转动带动第一齿轮3的转动，从而带动与第一齿轮3齿合的第二齿轮4的转动，使得第一齿轮3以及第二齿轮4沿第一齿条1和第二齿条2的长度方向上下移动，然后通过锁紧装置对第一传动杆7进行锁紧，对高度进行定位，实现根据需要有效调节活动搁架的高度，调节方便，并且采用齿轮连接的方式稳定性好。当松开右侧的第二转动手柄12后，由于受拉伸的第一拉簧11自身弹力的作用，实现第一棘轮8-1刹车复位，实现可升降搁架刹车，以防可升降搁架意外下滑顺坏。在冰箱本体16内设置可升降搁架，能随意调节可升降搁架的高度和位置，对于高、深的大容积冰箱，方便存放和取出最上层的可升降搁架上的食物。
根据本发明实施例的冰箱，在冰箱本体16内设置可升降搁架，能随意调节可升降搁架的高度和位置，对于高、深的大容积冰箱来说，方便存放和取出最上层的可升降搁架上食 物。
进一步地，如图10和图12所示，冰箱本体16内设有竖直设置的导向柱18，导向柱18穿过并伸出搁板17。由此，导向柱18的设置能对搁板17进行的移动进行导向，确保隔板17移动的稳定性。更进一步地，如图11所示，第一传动杆7和第二传动杆9处于同一水平面上，隔板17放置在第一传动杆7和第二传动杆9上，在隔板17上设置有容导向柱18穿过的孔。
如图12所示，在本发明的实施例中，可以将根据本发明的可升降搁架设置在冰箱本体16内部的中部，在可升降搁架上方和下方分别设置一个固定的隔板17，通过调节可升降搁架的升降，从而可以实现按照需要调节可升降搁架的置物空间以及可升降搁架下方的隔板17的置物空间。
以上仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种可升降搁架，其特征在于，包括：
    第一齿条，所述第一齿条竖直设置；
    第二齿条，所述第二齿条与所述第一齿条平行，且所述第二齿条的齿面与所述第一齿条的齿面相对设置；
    相互啮合的第一齿轮和第二齿轮，所述第一齿轮和所述第二齿轮设在所述第一齿条和所述第二齿条之间，且所述第一齿轮与所述第一齿条啮合，所述第二齿轮与所述第二齿条啮合；
    固定板，所述固定板设在所述第一齿条和所述第二齿条的宽度方向上的同一侧，且所述固定板沿所述第一齿条和所述第二齿条的长度方向可移动，其中所述第二齿轮通过第一转动轴可转动地连接在所述固定板上；
    第一传动杆，所述第一传动杆的一端穿过所述固定板且与所述第一齿轮固定连接，所述第一传动杆绕所述第一传动杆的中心轴线可转动；
    锁紧装置，所述锁紧装置设在所述固定板上以用于锁紧和放开所述第一传动杆。
  2. 根据权利要求1所述的可升降搁架，其特征在于，所述锁紧装置为第一棘轮机构，所述第一棘轮机构包括：
    第一棘轮，所述第一棘轮套设在所述第一传动杆上；
    第一棘爪，所述第一棘爪通过第二转动轴设在所述固定板上，所述第一棘爪与所述第一棘轮可分离地配合以锁紧和放开所述第一传动杆。
  3. 根据权利要求2所述的一种可升降搁架，其特征在于，还包括：
    第二传动杆，所述第二传动杆的一端可转动地连接在所述固定板上；
    棘轮止挡块，所述棘轮止挡块固定在所述第二传动杆上，所述棘轮止挡块用于调节所述第一棘爪与所述第一棘轮可分离地配合，当所述第二传动杆转动时适于带动所述棘轮止挡块抵压所述第一棘爪以使所述第一棘爪与所述第一棘轮分离。
  4. 根据权利要求3所述的可升降搁架，其特征在于，所述固定板上设有第一拉簧，所述第一拉簧设在所述第一棘轮和所述第一棘爪之间，所述第一拉簧的一端固定在所述固定板上，所述第一拉簧的另一端与所述第一棘爪的中部固定连接，所述第一拉簧用于拉动所述第一棘爪与所述第一棘轮抵接。
  5. 根据权利要求1-4中任一项所述的可升降搁架，其特征在于，所述第一传动杆的远离所述第一齿轮的一端设有第一转动手柄。
  6. 根据权利要求5所述的一种可升降搁架，其特征在于，所述第一转动手柄上设有第二棘轮机构，所述第二棘轮机构包括：
    第二棘轮，所述第二棘轮套设在所述第一传动杆上；
    第二棘爪，所述第二棘爪的一端通过第三转动轴可转动地连接在所述第一转动手柄上；
    第二拉簧，所述第二拉簧设在所述第二棘轮和所述第二棘爪之间，所述第二拉簧的一端与所述第一转动手柄固定连接，所述第二拉簧的另一端连接所述第二棘爪的中部，所述第二拉簧带动所述第二棘爪与所述第二棘轮抵接。
  7. 根据权利要求1-6中任一项所述的可升降搁架，其特征在于，所述第一齿条和所述第二齿条的彼此相对的一侧上均设有竖直延伸的导向槽，所述固定板的两侧边均可移动地设在所述第一齿条和所述第二齿条的所述导向槽内。
  8. 根据权利要求3-7中任一项所述的可升降搁架，其特征在于，所述第二传动杆的远离所述棘轮止挡块的一端设有第二转动手柄。
  9. 一种冰箱，其特征在于，包括：
    冰箱本体；
    根据权利要求1-8中任一项所述的可升降搁架，所述可升降搁架设在所述冰箱本体内，所述可升降搁架上设有搁板。
  10. 根据权利要求9所述的冰箱，其特征在于，所述冰箱本体内设有竖直设置的导向柱，所述导向柱穿过并伸出所述搁板。
PCT/CN2016/103805 2016-09-21 2016-10-28 可升降搁架和具有其的冰箱 WO2018053900A1 (zh)

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