CN103148661B - Refrigerator door opening device and refrigerator comprising same - Google Patents

Abstract

The invention discloses a refrigerator door opening device and a refrigerator with the same. The refrigerator door opening device includes a handle body and a base fixed on the opening and closing side of the refrigerator door body; the refrigerator door opening device also includes two sets of booster mechanisms, The two sets of booster mechanisms are respectively installed on the upper end and the lower end of the handle body, and the two sets of booster mechanisms both include a rotating cam and a push assembly; the handle body is fixedly connected to one end of the rotating cam, and is passed through The rotating shaft at the other end of the rotating cam is hinged to the above-mentioned base; the pushing assembly is fastened on the above-mentioned base and can slide along the chute provided on the above-mentioned base; the pushing assembly includes a pushing part , one end of the pushing part is equipped with a pushing head, and the other end fits with the above-mentioned rotating cam; the pushing head is against the side wall of the refrigerator box; the refrigerator includes a box body, a door body and the above-mentioned door opening device. The invention has simple structure, low cost and convenient installation and maintenance.

Description

Refrigerator door opening device and refrigerator having the same

technical field

The invention relates to a refrigerator, in particular to a refrigerator door opening device and a refrigerator with the same.

Background technique

With the development of science and technology, the progress of society and the continuous improvement of people's living standards, the application of refrigerators has spread throughout all aspects of production and life. Especially in recent years, the development of refrigerators is more rapid. From refrigeration and freezing, it has developed to the present multiple functions, which can meet the needs of people's various work and life. The popularity and application of refrigerators has greatly improved people's quality of life.

With the further improvement of people's living standards, consumers' demand for refrigerators has gradually developed from only focusing on whether the refrigerator can extend the shelf life of food to large capacity, freshness preservation, nutrition, health, environmental protection and other aspects. Large-capacity refrigerators are a major trend in future development. Large capacity and multiple partitions are more in line with consumers' living habits. However, the increase of the volume of the refrigerator will inevitably lead to the increase of the volume of the refrigerator. Recently, the area of the refrigerator door body also increases accordingly, and the weight of the door body also increases. Therefore, in order to ensure the insulation performance of the refrigerator, the magnetic force of the refrigerator door must also It is constantly increasing, and finally causes the user to be more laborious when opening the refrigerator door.

In order to solve the problem of excessive door-opening force, existing refrigerators mostly adopt the principle of leverage to reduce the door-opening force, which has a complex structure, takes up a lot of space, and is inconvenient for installation and maintenance. This shows that the prior art needs to be further improved and improved.

Contents of the invention

In order to avoid the disadvantages of the above-mentioned prior art, the present invention provides a door-opening device which can greatly reduce the door-opening force of a refrigerator and a refrigerator with the device.

The technical scheme adopted in the present invention is:

A refrigerator door opening device, comprising a handle body and a base fixed on the opening and closing side of the refrigerator door body; the refrigerator door opening device also includes two sets of booster mechanisms, and the two sets of booster mechanisms are respectively installed on the upper ends of the handle body The two sets of booster mechanisms include a rotating cam and a push assembly; the handle body is fixedly connected to one end of the rotating cam, and is connected to the above-mentioned base through a shaft passing through the other end of the rotating cam. Hinged; the pushing assembly is fastened on the base and can slide along the chute provided on the base; the pushing assembly includes a pushing part, and one end of the pushing part is equipped with a pushing head, The other end fits with the above-mentioned rotary cam; the pushing head is against the side wall of the refrigerator box.

The rotary cam includes a first positioning plate and a base plate fixed to the first positioning plate, and first side plates are fixed on both sides of the bottom plate, and the first side plate is fixedly connected to the first positioning plate; The front end of the first side plate is provided with a push angle; the relative positions of the two push angles are provided with first through holes; the rotating cam is fixedly connected with the handle body through the first positioning plate.

The base includes a second positioning plate and a bent third positioning plate, the second positioning plate and the third positioning plate are integrally connected; both sides of the free end of the third positioning plate are respectively fixed with Ear plates, second through holes are respectively opened at the relative positions of the two ear plates; the above-mentioned rotating shaft passes through the first through hole and the second through hole; the handle body is hinged to the base through the rotating shaft.

Both sides of the second positioning plate are respectively fixed with baffles, and the above-mentioned chute is formed between the two baffles and the second positioning plate; the lower end surface of the baffle and the side surface of the second positioning plate form the first One card slot.

The pushing part includes a sliding plate and a bent pushing plate; the front end of the sliding plate is provided with a pushing head connector, and the tail end of the sliding plate is fixedly connected to the front end of the pushing plate; The length of the sliding plate is greater than the length of the second positioning plate, and the width of the sliding plate is smaller than the width of the pushing plate; the rear end of the pushing plate is provided with a gap, and the width of the gap is wider than the third positioning plate. The width of the positioning plate is slightly larger; one end of the pushing head is closed, and the other end is provided with a groove matching the above-mentioned pushing head connector.

A first through slot is opened in the middle of the second positioning plate, and a first thrust block is fixed at the front end of the first through slot; a second thrust block is fixed on the front end of the first through slot; Two through slots, a second thrust block is fixed at the end of the second through slot; an elastic reset member is arranged between the first thrust block and the second thrust block.

The elastic return member is a return spring.

A cam cover is installed on the rotating cam; the cam cover includes an upper top plate and a second side plate fixed on both sides of the upper top plate and matched with the above-mentioned first side plate, the inner side of the second side plate A second slot is provided, and a hook is provided on the outside of the first side plate, and the cam cover is fastened on the rotating cam through the hook.

A top cover is installed on the top of the base, and the top cover includes a cover plate that is compatible with the above-mentioned push portion, and a third side plate is fixed on both sides of the cover plate, and the third side plate The bottom end is fixed with a clamping plate matching the above-mentioned first clamping groove; the lower end surface of the cover plate is provided with a guide groove for the above-mentioned second thrust block to move.

A refrigerator, comprising a box body, a door body for opening and closing the front opening of the box body, a door seal provided on the door body, and a door opening device arranged on the opening and closing side of the door body; the door opening device is used for To assist in opening the above-mentioned door body, the door-opening device is the aforementioned door-opening device.

Owing to adopting above-mentioned technical scheme, the beneficial effect that the present invention obtains is:

1. The present invention utilizes the principle of the cam mechanism to turn the handle body so that the push head pushes against the side wall of the refrigerator box, and the reverse thrust of the box to the push head becomes the power to open the door, reducing the difficulty of opening the refrigerator door .

2. The present invention has simple structure, low cost, and convenient installation and maintenance.

Description of drawings

Fig. 1 is a schematic diagram of the installation structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic diagram of the state of the present invention when the door of the refrigerator is closed.

Fig. 4 is a schematic diagram of the state of the present invention when the door of the refrigerator is opened.

Fig. 5 is a structural schematic diagram of the rotary cam in the present invention.

Fig. 6 is a structural schematic diagram of the base in the present invention.

Fig. 7 is a structural schematic diagram of the pushing part in the present invention.

Fig. 8 is an A-A sectional view of the present invention.

Fig. 9 is a structural schematic diagram of the push head in the present invention.

Fig. 10 is a schematic structural view of the cam cover in the present invention.

Fig. 11 is a structural schematic diagram of the top cover in the present invention.

in,

1. Door body 2. Box body 3. Door seal 4. Handle body 5. Base 6. Rotating cam 7. Rotating shaft 8. Chute 9. Push head 10. First positioning plate 11. Bottom plate 12. First side plate 13. Push angle 14. First through hole 15. Second positioning plate 16. Third positioning plate 17. Ear plate 18. Second through hole 19. Third positioning hole 20. Baffle plate 21. First card slot 22 , sliding plate 23, push plate 24, push head connector 25, notch 26, groove 27, first slot 28, first thrust block 29, second slot 30, second thrust block 31 , return spring 32, upper top plate 33, second side plate 34, hook 35, cam cover 36, top cover 37, cover plate 38, third side plate 39, clamping plate 40, guide groove 41, first positioning hole 42. The second positioning hole

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to these embodiments.

As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 6, a refrigerator door opening device includes a handle body 4 and a base 5 fixed on the opening and closing side of the refrigerator door body 1, and the handle body 4 is cylindrical Rod handle; the refrigerator door opening device also includes two sets of booster mechanisms, the two sets of booster mechanisms are respectively installed on the upper end and lower end of the handle body 4, and the two sets of booster mechanisms include a rotating cam 6 and a push Assembly; the handle body 4 is fixedly connected to one end of the rotating cam 6, and is hinged to the above-mentioned base 5 through the rotating shaft 7 passing through the other end of the rotating cam 6; the pushing assembly is fastened to the above-mentioned base 5 and can slide along the chute 8 provided on the above-mentioned base 5; the pushing assembly includes a pushing part, one end of the pushing part is equipped with a pushing head 9, and the other end is attached to the above-mentioned rotating cam 6 close; the push head 9 is against the side wall of the refrigerator casing 2.

As shown in Fig. 2 and Fig. 5, described rotating cam 6 comprises first positioning plate 10 and the bottom plate 11 that is connected with this first positioning plate 10, and the two sides of described bottom plate 11 are fixed with first side plate 12, so The first side plate 12 is fixedly connected with the first positioning plate 10; the front end of the first side plate 12 is provided with a push angle 13; the relative positions of the two push angles are provided with a first through hole 14 ; The first positioning plate is provided with a first positioning hole 41, and there are two first positioning holes 41, and the rotating cam 6 connects with the handle body through the screw set in the first positioning hole 41 4 threaded connections.

As shown in Figure 2, Figure 6 and Figure 8, the base 5 includes a second positioning plate 15 and a bent third positioning plate 16, the second positioning plate 15 and the third positioning plate 16 are integrally fixed Connect; the second positioning plate 15 is provided with a second positioning hole 42, and the third positioning plate 16 is provided with a third positioning hole 19, and the base 5 passes through the second positioning hole 42 and The screws in the third positioning hole 19 are threadedly connected with the door body 1; the two sides of the free end of the third positioning plate 16 are respectively fixed with lugs 17, and the relative positions of the two lugs are respectively provided with The second through hole 18; the above-mentioned rotating shaft 7 runs through the first through hole 14 and the second through hole 18; the handle body 4 is hinged with the base 5 through the rotating shaft 7; Sides are respectively fixed with baffles 20, the above-mentioned chute 8 is formed between the two baffles and the second positioning plate 15; twenty one.

As shown in Figure 7, the push portion includes a slide plate 22 and a bent push plate 23; end is fixedly connected with the front end of the above-mentioned push plate 23; the length of the slide plate 22 is greater than the length of the above-mentioned second positioning plate 15, and the width of the slide plate 22 is smaller than the width of the above-mentioned push plate 23; The rear end of 23 is provided with gap 25, and the width of described gap 25 is slightly larger than the width of above-mentioned third positioning plate 16; Fitting groove 26 .

As shown in Figures 6 and 7, a first through groove 27 is provided in the middle of the second positioning plate 15, and the front end of the first through groove 27 is fixed with a first thrust block 28; the sliding plate 22 A second through-slot 29 is provided at a position opposite to the above-mentioned first through-slot 27, and the end of the second through-slot 29 is fixed with a second thrust block 30; the first thrust block 28 and the second An elastic return member is arranged between the thrust blocks 30 ; the elastic return member is a return spring 31 .

As shown in Figures 1 and 10, a cam cover 35 is installed on the rotating cam 6; The second side plate 33 is provided, the inner side of the second side plate 33 is provided with a second card slot (not shown), the outer side of the first side plate 12 is provided with a hook 34, and the cam cover 35 passes through the The hook 34 is fastened on the rotating cam 6 .

As shown in Fig. 1, Fig. 8 and Fig. 11, a top cover 36 is installed on the top of the base 5, and the top cover 36 includes a cover plate 37 compatible with the above-mentioned pushing part, and the two sides of the cover plate 37 are A third side plate 38 is fixed on each side, and the bottom end of the third side plate 38 is fixed with a clamping plate 39 that is compatible with the first slot 21; the lower end surface of the cover plate 37 is provided with A guide slot 40 for the movement of the second thrust block 30 .

A refrigerator, comprising a box body 2, a door body 1 for opening and closing the front side opening of the box body, a door seal 3 arranged on the door body 1, and a door opening device arranged on the opening and closing side of the door body 1; The door-opening device is used to assist in opening the above-mentioned door body 1, and the door-opening device is the aforementioned door-opening device.

As shown in FIG. 2 , when the door body 1 of the refrigerator is in the closed state, the return spring 31 is in the longest state, and at this moment, the rotary cam 6 has a larger contact area with the push plate 23 . As shown in Figure 3, when the door body 1 of the refrigerator needs to be opened, the handle body 4 is pulled to make it rotate around the rotating shaft 7 along the C direction. Move towards the direction of the box body 2 under the action of this thrust, and drive the slide plate 22 to move toward the direction of the box body 2 along the chute 8. At the same time, because the first thrust block 28 is fixed on the base 5 (the base 5 is installed On the door body 1, the base 5 is motionless), the second thrust block 30 is fixed on the sliding plate 22, so the return spring 31 will push against the thrust of the second thrust block 30 and the resistance of the first thrust block Under the action, the pressure becomes shorter. When the push part moves to the front end of the push plate 23 and contacts the end surface of the first slot 21, the handle body 4 rotates to the limit position of the C direction. At this time, the push head 9 also Arriving on the box body 2 of the refrigerator, under the reaction force of the box body 2 and the pulling force of the handle body 4, a small gap will appear between the door seal 3 and the side wall of the box body 2, thereby reducing the size of the box body 2. The pressure difference inside and outside reduces the magnetic force between the door seal 3 and the box body 2 at the same time, reducing the difficulty of opening the refrigerator door.

As shown in Figure 4, when the door body 1 is opened, the return spring 31 is in the shortest state, storing deformation energy. At this time, the handle body 4 is released, and the return spring 31 releases energy, pushing the push assembly away from the box body 2 The direction of the side wall moves, thereby pushing the rotating cam 6 to rotate, and driving the handle body 4 to return to the original position along the D direction.

In the description of the present invention, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

It should be further explained that the specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Claims (5)

1. A refrigerator door opening device, comprising a handle body and a base fixed on the opening and closing side of the refrigerator door body, characterized in that: the refrigerator door opening device also includes two sets of booster mechanisms, and the two sets of booster mechanisms are respectively installed At the upper end and the lower end of the handle body, the two sets of booster mechanisms include a rotating cam and a push assembly; the handle body is fixedly connected to one end of the rotating cam, and the The rotating shaft is hinged with the above-mentioned base; the pushing assembly is fastened on the above-mentioned base and can slide along the chute provided on the above-mentioned base; the pushing assembly includes a pushing part, and one end of the pushing part A push head is installed, and the other end fits with the above-mentioned rotating cam; the push head is against the side wall of the refrigerator box; the rotating cam includes a first positioning plate and a bottom plate fixedly connected with the first positioning plate , the two sides of the bottom plate are fixed with the first side plate, and the first side plate is fixedly connected with the above-mentioned first positioning plate; the front end of the first side plate is provided with a push angle; the above-mentioned two push angles The first through holes are opened at the relative positions; the rotating cam is fixedly connected with the handle body through the first positioning plate; the base includes a second positioning plate and a bent third positioning plate. The second positioning plate and the third positioning plate are integrally connected; ear plates are respectively fixed on both sides of the free end of the third positioning plate, and second through holes are respectively opened at the relative positions of the two ear plates; The above-mentioned rotating shaft runs through the first through hole and the second through hole; the handle body is hinged to the base through the rotating shaft; baffle plates are respectively fixed on both sides of the second positioning plate, and the two baffles The above-mentioned chute is formed between the plate and the second positioning plate; the lower end surface of the baffle plate and the side surface of the second positioning plate form a first slot; the pushing part includes a sliding plate and a bent pushing plate The front end of the sliding plate is provided with a push head connector, and the tail end of the sliding plate is fixedly connected with the front end of the above-mentioned pushing plate; the length of the sliding plate is greater than the length of the second positioning plate, and the The width of the sliding plate is smaller than the width of the above-mentioned push plate; the rear end of the push plate is provided with a gap, and the width of the gap is slightly larger than the width of the above-mentioned third positioning plate; one end of the push head is closed, and the other end is closed. There is a groove matching the above-mentioned push head connector; a first through slot is opened in the middle of the second positioning plate, and a first thrust block is fixed at the front end of the first through slot; The sliding plate is provided with a second through groove at a position opposite to the first through groove, and a second thrust block is fixed at the end of the second through groove; the first thrust block and the second thrust block Elastic restoring parts are arranged between the blocks. 2. The refrigerator door opening device according to claim 1, characterized in that: the elastic return member is a return spring. 3. A refrigerator door opening device according to claim 2, characterized in that: a cam cover is installed on the rotating cam; the cam cover includes an upper top plate and is fixed on both sides of the upper top plate, The second side plate that the side plate is compatible with, the inner side of the second side plate is provided with a second card slot, the outer side of the first side plate is provided with a hook, and the cam cover is fastened on the side plate through the hook. above the rotating cam. 4. A refrigerator door opening device according to claim 3, characterized in that: a top cover is installed on the top of the base, and the top cover includes a cover plate matched with the pushing part, and the cover plate The two sides of the cover plate are respectively fixed with a third side plate, and the bottom end of the third side plate is fixed with a clamping plate suitable for the above-mentioned first slot; the lower end of the cover plate is provided with a Two guide slots for the movement of the thrust block. 5. A refrigerator, comprising a box body, a door body for opening and closing the front side opening of the box body, a door seal arranged on the door body and a door opening device arranged on the opening and closing side of the door body, characterized in that: The door opening device is used to assist in opening the above-mentioned door body, and the door opening device is the door opening device according to any one of claims 1-4.