CN204920602U - To automatic door opener of refrigerator that opens door based on cam mechanism - Google Patents
To automatic door opener of refrigerator that opens door based on cam mechanism Download PDFInfo
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- CN204920602U CN204920602U CN201520696816.2U CN201520696816U CN204920602U CN 204920602 U CN204920602 U CN 204920602U CN 201520696816 U CN201520696816 U CN 201520696816U CN 204920602 U CN204920602 U CN 204920602U
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- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
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- 241000239290 Araneae Species 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
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- 238000013461 design Methods 0.000 abstract description 2
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
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Abstract
本实用新型属于家用电器领域，具体是一种基于凸轮机构的对开门冰箱自动开关门装置，包括上端盖、底板、电机、电机座、联轴器、蜗杆、轴承支座、棘轮单向传动机构、凸轮机构、连杆、滚子、倍速机构。电机通过电机座安置在底板上，电机轴通过联轴器与蜗杆相连接，蜗杆采用轴承支座固定。轴承支座固定在底板上。安装时，底板固定在冰箱上。棘轮单向传动机构和凸轮机构通过固定轴安置在底板上。连杆由导轨方式安置在底板上，分别与凸轮机构与倍速机构相连接。本实用新型使用倍速机构，在能满足推开速度的前提下使结构更加简单紧凑，维修方便；推杆推开门的速度可以通过设计来调节，能实现开始速度低、力度大，后来速度高、力度小，使开门过程稳定，功耗低。
The utility model belongs to the field of household appliances, in particular to an automatic door opening and closing device for side-by-side refrigerators based on a cam mechanism, comprising an upper end cover, a bottom plate, a motor, a motor seat, a shaft coupling, a worm, a bearing support, and a ratchet one-way transmission mechanism , Cam mechanism, connecting rod, roller, double speed mechanism. The motor is placed on the bottom plate through the motor seat, the motor shaft is connected with the worm through the coupling, and the worm is fixed by the bearing support. The bearing support is fixed on the base plate. During installation, the bottom plate is fixed on the refrigerator. The ratchet one-way transmission mechanism and the cam mechanism are arranged on the base plate through the fixed shaft. The connecting rod is arranged on the bottom plate by way of guide rails, and is connected with the cam mechanism and the double speed mechanism respectively. The utility model uses a double-speed mechanism, which makes the structure simpler and more compact under the premise of meeting the pushing speed, and is convenient for maintenance; the speed of the push rod to push the door can be adjusted by design, which can realize low initial speed, high strength, and high speed later. , The force is small, so that the process of opening the door is stable and the power consumption is low.
Description
Technical field
The utility model belongs to household appliance technical field, specifically a kind of side by side combination refrigerator automatic door operator based on cam mechanism.
Background technology
Along with the continuous change in market, and the fast development of side by side combination refrigerator enterprise, side by side combination refrigerator has entered into our visual field.The no matter height of the price of family population how many, floor space size, product, side by side combination refrigerator sales growth is swift and violent.But current side by side combination refrigerator, door mostly is hand pulling type, because side-by-side refrigerator door is too heavy and the magneticaction of side by side combination refrigerator door seal magnetic stripe during enabling, make to open Door by Hand and compare effort, especially, when user's both hands take thing, open the door very inconvenient, especially for old man and the child of family.In order to solve the drawback of hand pulling type refrigerator doors, Authorization Notice No. is that the Chinese patent of CN2443126Y discloses one " automatic electromagnetic door opener ", this device controls the iron core of a pure iron making by using electromagnet and then drives push rod to be opened by door body, and cost is higher, not easy-maintaining.Authorization Notice No. be the Chinese patent of CN203964526U disclose one " for refrigerator automatic door operator and there is its refrigerator ", this device have employed a series of gear & rack structure and drives push rod to push the door open body.Refrigerator resistance in door opening process is constantly change, and this device gear is as actuated element, and the speed of the body process that makes to push the door open is constant, adds the waste of the energy and is unfavorable for the stability that device operates.Application publication number is the open hurdle of patent of invention " a kind of automatic door operator and use the side by side combination refrigerator of this device " of CN102278033A, and it is not open completely that this device refrigerator doors can only open very little angle two, and automaticity is low.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of side by side combination refrigerator automatic door operator based on cam mechanism, and side-by-side refrigerator door can be opened 70 ° ~ 90 ° by this device automatically.
It is as follows that the utility model solves the technical scheme that its technical problem adopts: a kind of side by side combination refrigerator automatic door operator based on cam mechanism, comprises upper end cover, base plate, motor, motor cabinet, shaft coupling, worm screw; Motor is arranged on base plate by motor cabinet; Motor shaft is connected with the axle that worm screw is housed by shaft coupling, and axle adopts bearing spider to fix; Bearing spider is fixed on base plate; Base plate is fixed on refrigerator upper surface; It is characterized in that also comprising ratchet one-way transmission mechanism, cam mechanism, connecting rod, roller, duplication acceleration mechanism; Ratchet one-way transmission mechanism and cam mechanism are arranged on base plate by fixed axis; Connecting rod adopts guide rail mode to be arranged on base plate, and there is fixed axis at connecting rod two ends; Duplication acceleration mechanism comprises gear, tooth bar, push rod; Tooth bar in duplication acceleration mechanism is fixed on base plate, and the push rod in duplication acceleration mechanism on base plate, has relative sliding with base plate by guide rails assembling; The center of the gear in duplication acceleration mechanism is cast with bearing support, and gear is connected with the fixed axis on connecting rod by bearing, is meshed with the section of rack on tooth bar and push rod simultaneously; On connecting rod, the top of fixed axis is threaded, and the bottom of fixed axis is connected by interference and is connected with the bearing in the gear centre seat in duplication acceleration mechanism with roller respectively, and the top nut check of fixed axis, can prevent roller or gear from coming off.
Above-mentioned a kind of side by side combination refrigerator automatic door operator based on cam mechanism, is characterized in that: cam realizes release and the rollback of connecting rod by rotating 360 degrees, and then realizes release and the rollback of push rod; 0 °-30 ° of cam is basic circle profile, and roller is when section contacts therewith, connecting rod non-displacement; 30 °-180 ° of cam is rise, roller therewith section contact time, push rod has release displacement; 180 °-210 ° of cam is far angle of repose, and roller is when section contacts therewith, and push rod is motionless, i.e. non-displacement; 210 °-360 ° of cam is backhaul, roller therewith section contact time, push rod has rollback displacement; In order to better push refrigerator doors open, designing the rise profile of cam herein, making the speed to introduce of push rod be simple harmonic motion.
Above-mentioned a kind of side by side combination refrigerator automatic door operator based on cam mechanism, is characterized in that: push rod one end is cast as rack shapes, and the other end is cast as rectangular block shape.
During work, drive worm screw to rotate by motor by shaft coupling, and then drive worm gear, thus drive the motion of ratchet one-way transmission mechanism.Ratchet one-way transmission mechanism drives cam mechanism motion by gears meshing.Cam mechanism drives duplication acceleration mechanism motion by connecting rod again.Duplication acceleration mechanism output is side by side combination refrigerator push rod, thus realizes the automatic door opening motion of side by side combination refrigerator.In addition, this device can also be used to realize pushing open the refrigerator only having a door, i.e. non-side by side combination refrigerator, only need adopt a part for original structure.
This automatic door operator tool has the following advantages: 1, use duplication acceleration mechanism, under meeting the prerequisite of speed of pushing open, make structure more simply compact, easy to maintenance; 2, the speed that push rod pushes the door open can regulate by designing, and can realize that commencing speed is low, great efforts, and speed was high afterwards, dynamics is little, and door opening process is stablized, low in energy consumption.At present, also do not go on the market in market there is the side by side combination refrigerator of automatic door-opening mechanism.
Accompanying drawing illustrates:
Fig. 1 is exterior contour schematic diagram of the present utility model;
Structural representation when Fig. 2 is utility model works;
Fig. 3 is overall structure schematic diagram of the present utility model;
Fig. 4 is the internal construction schematic diagram of the utility model ratchet one-way transmission mechanism;
Fig. 5 is the inner body structure chart of the utility model ratchet one-way transmission mechanism.
In figure: 1-upper end cover, 2-base plate, 3-motor, 4-motor cabinet, 5-shaft coupling, 6-worm screw I, 7-axle, 8-worm screw II, 9-bearing support, 10-worm gear I, 11-gear I, 12-cam, 13-gear II, 14-connecting rod, 15-bearing, 16-tooth bar, 17-fixed axis I, 18-fixed axis II, 19-fixed axis III, 20-upper rail I, 21-gear III, 22-upper rail II, 23-push rod, 24-lower guideway, 25-roller, 26-ratchet, 27-ratchet slot, 28-worm gear II, 29-gear IV.
Specific embodiments:
Provide three most preferred embodiments of the present utility model below in conjunction with accompanying drawing, but the utility model is not limited to described embodiment.
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 shows, based on an automatic door operator for the side by side combination refrigerator of cam mechanism, comprise motor 3, motor cabinet 4, shaft coupling 5, worm screw I 6 and worm screw II 8, axle 7, bearing spider 9, ratchet one-way transmission mechanism, cam mechanism, connecting rod 14, roller 25, duplication acceleration mechanism; Motor 3 is installed on a base plate 2 by motor cabinet 4, motor output shaft by shaft coupling 5 with worm screw I 6 be housed be connected with the axle 7 of worm screw II 8; Worm screw I 6 rotation direction contrary to worm screw II 8 is installed; Axle 7 adopts bearing spider 9 to fix.
Ratchet one-way transmission mechanism comprises worm gear and gear, as shown in Figure 4; Worm gear I 10 is arranged on the fixed axis I 17 of base plate 2, can rotate around the axis, and is driven by worm screw II 8, and gear I 11 is coaxially installed with it; Worm gear II 28 is arranged on base plate fixed axis I 17, can rotate around the axis, and is driven by worm screw 6 I, and gear IV 29 is coaxially installed with it; When worm gear II 28 (worm gear I 10) rotates clockwise, the ratchet slot of its inside blocks ratchet, thus gear IV 29 (gear I 11) is rotated; And when worm gear II 28 (worm gear I 10) rotates counterclockwise, due to ratchet slot and the angle of inclination on ratchet top and the elasticity of ratchet, ratchet slips over ratchet slot, thus gear IV 29 (gear I 11) does not rotate; Be installed as contrary rotation direction due to worm screw I 6 and worm screw II 8, so motor is when rotating, worm gear II 28 and worm gear I 10 always one do clockwise movement, another does counterclockwise movement; Thus realize the motion in turn of upper and lower mechanism, and then realize opening in turn of side-by-side refrigerator door.
As shown in Figure 5, two ratchets on gear I 11 (gear IV 29) are cast and are formed together with gear; Worm gear I 10 (worm gear II 28) center casts out a projection, contacts, can reduce contact area with gear I 11 (gear IV 29), reduces friction; Ratchet slot 27 is cast and is formed together with worm gear I 10 (worm gear II 28).
Cam mechanism is made up of, as shown in Fig. 3, Fig. 4, Fig. 5 gear and cam; Gear II 13 is arranged on the fixed axis III 19 of base plate, and cam 12 relative to gear II 13 setoff installation, and is fixedly mounted with the fixed axis II 18 on gear by the fixed axis III 19 on base plate, and realization is synchronized with the movement with gear II 13; The output of cam mechanism is connected with connecting rod 14 by roller 25; The speed that connecting rod 14 moves is decided by the design profile of cam 12; The profile that thus can change cam 12 carrys out the speed to introduce requirement of satisfied last push rod 23, reaches beginning hourly velocity little, great efforts, the movement characteristic that then speed great dynamics is little, and then the more stable automation realizing side-by-side refrigerator door enabling.
Duplication acceleration mechanism bag expands tooth bar, gear and push rod, as shown in Figure 3, Figure 4; Tooth bar 16 is fixed on the bearing 15 of base plate, and the slideway that push rod 23 is formed by upper rail II 22 and lower guideway 24 is installed, and has relative sliding with base plate 2; Gear III 21 is connected with the fixed axis on connecting rod on 14 by bearing, and fixed axis top using nuts is locked; Gear III 21 is meshed with the section of rack on stationary rack 16 and push rod 23, realizes times effect; By duplication acceleration mechanism, make the speed to introduce of push rod be the twice of connecting rod speed, contribute to the miniaturization of front structure.
Embodiment two:
The cam 12 of cam mechanism have employed the method with the concentric mount scheme of gear II 13, and namely without setoff installation, other are with embodiment one.
Embodiment three:
The push rod 23 of duplication acceleration mechanism adopts and is all cast as rack form, and other are with embodiment one.
Claims (3)
1., based on a side by side combination refrigerator automatic door operator for cam mechanism, comprise upper end cover (1), base plate (2), motor (3), motor cabinet (4), shaft coupling (5), worm screw I (6) and worm screw II (8); Motor (3) is arranged on base plate (2) by motor cabinet (4); Motor shaft by shaft coupling (5) with worm screw I (6) be housed be connected with the axle (7) of worm screw II (8), axle (7) employing bearing spider (9) is fixing; Bearing spider (9) is fixed on base plate (2); Base plate (2) is fixed on refrigerator upper surface; It is characterized in that also comprising ratchet one-way transmission mechanism, cam mechanism, connecting rod (14), roller (25), duplication acceleration mechanism; Ratchet one-way transmission mechanism and cam mechanism are arranged on base plate by fixed axis; Connecting rod (14) adopts guide rail mode to be arranged on base plate, and there is fixed axis at the two ends of connecting rod (14), and there is screw thread on the top of fixed axis; Duplication acceleration mechanism comprises gear III (21), tooth bar (16), push rod (23); Tooth bar (16) is fixed on the bearing (15) of base plate, and the slideway that push rod (23) is formed by guide rail II (22) and guide rail (24) is installed, and has relative sliding with base plate (2); Gear III (21) is connected with the fixed axis on (14) on connecting rod by bearing, and fixed axis top using nuts is locked; Gear III (21) is meshed with the section of rack on stationary rack (16) and push rod (23).
2. a kind of side by side combination refrigerator automatic door operator based on cam mechanism according to claim 1, it is characterized in that: the cam in cam mechanism realizes release and the rollback of connecting rod (14) by rotating 360 degrees, and then realize release and the rollback of push rod (23); 0 °-30 ° of cam is basic circle profile, and roller is when section contacts therewith, connecting rod non-displacement; 30 °-180 ° of cam is rise, roller therewith section contact time, push rod has release displacement; 180 °-210 ° of cam is far angle of repose, and roller is when section contacts therewith, and push rod is motionless, i.e. non-displacement; 210 °-360 ° of cam is backhaul, roller therewith section contact time, push rod has rollback displacement.
3. a kind of side by side combination refrigerator automatic door operator based on cam mechanism according to claim 1 and 2, is characterized in that: push rod (23) one end is cast as rack shapes, and the other end is cast as rectangular block shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520696816.2U CN204920602U (en) | 2015-09-09 | 2015-09-09 | To automatic door opener of refrigerator that opens door based on cam mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520696816.2U CN204920602U (en) | 2015-09-09 | 2015-09-09 | To automatic door opener of refrigerator that opens door based on cam mechanism |
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| Publication Number | Publication Date |
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| CN204920602U true CN204920602U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520696816.2U Withdrawn - After Issue CN204920602U (en) | 2015-09-09 | 2015-09-09 | To automatic door opener of refrigerator that opens door based on cam mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113905A (en) * | 2015-09-09 | 2015-12-02 | 山东大学 | Opposite-door refrigerator automatic door operator based on cam mechanism |
| CN111411862A (en) * | 2017-12-29 | 2020-07-14 | 金俊磊 | Multi-opening safe |
| CN111425106A (en) * | 2017-12-29 | 2020-07-17 | 金俊磊 | Safe with cavity capable of being opened selectively |
| CN111765707A (en) * | 2020-07-10 | 2020-10-13 | 马鞍山学院 | Automatic double-door refrigerator and double-door device thereof |
-
2015
- 2015-09-09 CN CN201520696816.2U patent/CN204920602U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113905A (en) * | 2015-09-09 | 2015-12-02 | 山东大学 | Opposite-door refrigerator automatic door operator based on cam mechanism |
| CN111411862A (en) * | 2017-12-29 | 2020-07-14 | 金俊磊 | Multi-opening safe |
| CN111425106A (en) * | 2017-12-29 | 2020-07-17 | 金俊磊 | Safe with cavity capable of being opened selectively |
| CN111411862B (en) * | 2017-12-29 | 2021-08-06 | 江西金虎保险设备集团有限公司 | Multi-opening safe |
| CN111765707A (en) * | 2020-07-10 | 2020-10-13 | 马鞍山学院 | Automatic double-door refrigerator and double-door device thereof |
| CN111765707B (en) * | 2020-07-10 | 2022-01-25 | 马鞍山学院 | Automatic double-door refrigerator and double-door device thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20160907 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |