CN113250567B

CN113250567B - Refrigerator

Info

Publication number: CN113250567B
Application number: CN202110485347.XA
Authority: CN
Inventors: 郭凯; 王岩松; 杨洪光; 王凯
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2023-07-07
Anticipated expiration: 2039-12-30
Also published as: CN113250562A; CN113250563B; CN113250568A; CN113124592B; CN113250564B; CN113250567A; CN113250563A; CN113250566B; CN113250566A; CN113124592A; CN113250565B; CN113250565A; CN113250564A

Abstract

The invention provides a refrigerator, which comprises a box body connecting seat and a door body connecting seat rotatably connected to the box body connecting seat, wherein the box body connecting seat comprises a pair of first side walls which are oppositely arranged in parallel, the door body connecting seat comprises a pair of second side walls which are oppositely arranged, the pair of second side walls are positioned between the pair of first side walls, the hinge also comprises a swinging shaft, a sliding shaft and a connecting piece, the two axial ends of the swinging shaft are respectively connected with the pair of second side walls, the sliding shaft is slidably connected to the box body connecting seat, and the connecting piece is rotatably connected with the swinging shaft and the sliding shaft. The hinge and the refrigerator of the invention cancel the arc-shaped groove of the traditional hinge, so that the hinge can be made thin, and the packing amount of the refrigerator is increased.

Description

Refrigerator

The present divisional application is the divisional application of patent CN201911398873.1, the filing date of the original application is 12 months 30 days in 2019, and the patent application names are hinge and refrigerator.

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator.

Background

The hinge of freezer realizes the upset of freezer door body, and the hinge of current freezer is general all to be protruded in the freezer box outside, and receives structure and motion mode's restriction hardly to adjust, this makes whole thickness increase, and the vanning volume of freezer reduces.

The hinge of current freezer includes an arc groove, and the in-process of door body upset, the axle of the hinge of connecting the door body is reciprocal rotation in the arc groove, so the lateral wall of arc groove needs to occupy certain thickness, has restricted the thickness of hinge and can't make thinly.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide a hinge and a refrigerator.

In order to achieve one of the above objects, an embodiment of the present invention provides a refrigerator, including a door body, a box body, and a hinge, where the hinge includes a box body connecting seat and a door body connecting seat rotatably connected to the box body connecting seat, the door body connecting seat is fixedly connected to the door body, the box body connecting seat is fixedly connected to the box body, and the box body connecting seat further includes a box body connecting plate; the box connecting seat comprises a rotating shaft and a pair of first side walls which are oppositely arranged in parallel, the door connecting seat is rotationally connected to the rotating shaft, the door connecting seat comprises a pair of second side walls which are oppositely arranged, the pair of second side walls are positioned between the pair of first side walls, the hinge further comprises a swinging shaft, a sliding shaft, a limiting part, an elastic supporting part and a connecting piece, the swinging shaft is fixedly connected to the door connecting seat and parallel to the rotating shaft, the sliding shaft is parallel to the swinging shaft, the limiting part limits the movement direction of the sliding shaft to be parallel to the box connecting plate, the elastic supporting part comprises a fixed end fixedly connected with the box connecting seat and a sliding end connected with the sliding shaft, the two axial ends of the swinging shaft are respectively connected with the pair of second side walls, the sliding shaft is slidably connected with the box connecting seat, the connecting piece is rotationally connected with the swinging shaft and the sliding shaft, a first space is formed between the door body and the box, and the door body is switched to a full-open state from the closed state to the open state.

As a further improvement of an embodiment of the present invention, the elastic supporting portion includes a supporting beam, a supporting rod, and an elastic member sleeved outside the supporting rod, where the supporting beam is fixedly connected with the box body connecting seat; one end of the supporting rod penetrates through the supporting cross beam, and the other end of the supporting rod is connected with the sliding shaft; one end of the elastic piece is propped against the supporting rod.

As a further improvement of an embodiment of the present invention, the box connecting seat further includes a box connecting plate connected to the pair of first side walls, and the sliding shaft drives the elastic supporting portion to slide linearly along a direction parallel to the box connecting plate.

As a further improvement of an embodiment of the present invention, the elastic member is a spring.

As a further improvement of an embodiment of the present invention, the limiting portion includes a sliding groove, the sliding shaft is coupled in the sliding groove and slides along the sliding groove, and two ends of the sliding groove limit the movement amplitude of the sliding shaft relative to the box body connecting seat.

As a further improvement of an embodiment of the present invention, the sliding groove includes a pair of limiting surfaces parallel to each other, and the sliding shaft is disposed between the pair of limiting surfaces and slides along the sliding groove.

As a further improvement of an embodiment of the present invention, two sliding grooves are provided, the two sliding grooves are relatively parallel and are respectively provided on the pair of first side walls, and two axial ends of the sliding shaft are respectively coupled in the two sliding grooves.

As a further improvement of an embodiment of the invention, the box connecting seat further comprises a cover plate, the box connecting seat further comprises a box connecting plate, the limiting part comprises a first limiting part and a second limiting part, the first limiting part is arranged on the cover plate or the box connecting plate, the second limiting part is arranged on the sliding shaft, and the first limiting part and the second limiting part are matched to limit the movement amplitude of the sliding shaft relative to the box connecting seat.

As a further improvement of an embodiment of the present invention, one of the first limiting member and the second limiting member is configured as a limiting block, and the other of the first limiting member and the second limiting member is configured as a limiting groove, and the limiting block moves in the limiting groove.

As a further improvement of an embodiment of the present invention, when the door body is in the fully opened state, the swing shaft is located at a side of the plane where the box body connecting plate is located, which faces the box body.

Compared with the prior art, the invention has the following beneficial effects: according to the hinge and the refrigerator, the two axial ends of the swinging shaft are connected with the pair of second side walls of the door body connecting seat, so that the problem that the thickness of the hinge is large due to the fact that the traditional hinge is provided with the arc-shaped groove and the swinging shaft moves in the arc-shaped groove is solved, the arc-shaped groove of the traditional hinge is omitted, the hinge can be made to be very thin, the strength of the hinge structure is not affected, the space required by the refrigerator during storage and transportation is further reduced, and the loading capacity of the refrigerator is increased.

Drawings

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

fig. 2 is a side view of a refrigerator according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of a hinge in a closed state according to an embodiment of the present invention;

FIG. 5 is a schematic view of a hinge in an open state according to an embodiment of the present invention;

FIG. 6 is a side view of a hinge in a closed state according to an embodiment of the present invention;

FIG. 7 is a side view of a hinge in an open state according to an embodiment of the present invention;

wherein, 1, a hinge; 11. a box body connecting seat; 111. a rotating shaft; 112. a first sidewall; 113. a box body connecting plate; 12. a door body connecting seat; 121. a second sidewall; 13. a swing shaft; 14. a sliding shaft; 15. a connecting piece; 16. a limiting piece; 161. a sliding groove; 17. an elastic support part; 171. a support rod; 1711. a sliding end; 172. an elastic member; 173. a support beam; 1731. a fixed end; 1732. an opening; 18. a first sleeve; 19. a second sleeve; 100. a first space; 2. a case; 3. a door body; 4. and (5) door sealing.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the invention.

An embodiment of the present invention provides a hinge 1 and a refrigerator having the hinge 1, in which the size of the hinge 1 is made thinner in a state where normal operation is maintained by redesigning the structure of the hinge 1, so that the packing amount of the refrigerator is increased.

The embodiment of the application provides a freezer, including door body 3 and box 2, the inside refrigeration space that encloses of box 2, door body 3 seal refrigeration space, connect through hinge 1 between door body 3 and the box 2, hinge 1 supports opening and closing of door body 3.

The hinge 1 of this embodiment, including box connecting seat 11 and door body connecting seat 12, box connecting seat 11 includes box connecting plate 113 and pivot 111, and door body connecting seat 12 rotates to be connected in pivot 111, and door body connecting seat 12 includes door body connecting plate, and door body connecting seat 12 and door body 3 fixed connection, box connecting seat 11 and box 2 fixed connection specifically, box connecting plate 113 paste and lean on box 2 to set up, and door body connecting plate pastes and lean on door body 3 to set up.

The door body 3 of this embodiment is turned over from the side of the case 2, and the hinge 1 is correspondingly disposed on the side of the case 2 and the door body 3. For the sake of clarity of the connection positional relationship, in this embodiment, the direction of the hinge 1 toward the case 2 is defined as front, the opposite direction is defined as rear, the direction of the door 3 with respect to the case 2 is defined as up, the opposite direction is defined as down, and both sides facing the hinge 1 from the front are defined as left and right, respectively.

The hinge 1 further comprises a limiting mechanism which limits the angle of rotation of the door body connecting seat 12 relative to the box body connecting seat 11, thereby limiting the angle of opening of the door body 3 of the refrigerator relative to the box body 2.

The limiting mechanism comprises a swinging shaft 13 fixedly connected to the door body connecting seat 12, a sliding shaft 14 slidingly connected to the box body connecting seat 11, a connecting piece 15 simultaneously connected to the swinging shaft 13 and the sliding shaft 14 in a rotating mode, and a limiting part, wherein the door body connecting seat 12 rotates around a rotating shaft 111 of the box body connecting seat 11, meanwhile, the swinging shaft 13 fixed on the door body connecting seat 12 performs swinging motion together, the swinging shaft 13 pulls the connecting piece 15 to drive the sliding shaft 14 to move together, the swinging shaft 13 is parallel to the rotating shaft 111, the sliding shaft 14 is parallel to the swinging shaft 13, namely, three shafts are parallel to each other, and when the door body connecting seat 12 rotates around the rotating shaft 111, the sliding shaft 14 is driven to move, and the sliding shaft 14 is always parallel to the rotating shaft 111 under the limitation of each part.

Two through holes can be respectively arranged on the connecting piece 15, the swinging shaft 13 and the sliding shaft 14 respectively penetrate through the through holes of the connecting piece 15, the connecting piece 15 is always in pivot connection with the swinging shaft 13 and the sliding shaft 14, and when the swinging shaft 13, the connecting piece 15 and the sliding shaft 14 move, relative rotation can occur among the three.

The limiting part limits the movement direction of the sliding shaft 14 to be parallel to the box connecting plate 113, the limiting part can be arranged on the box connecting seat 11, can be arranged on the packaging cover plate of the hinge 1, and can be simultaneously arranged in a plurality of places, so that the limiting part limits the movement mode of the sliding shaft 14 to enable the sliding shaft 14 to move only linearly under the traction of the connecting piece 15, and the rotating shaft 111, the door connecting seat 12, the swinging shaft 13, the connecting piece 15, the sliding shaft 14 and the limiting part jointly form a crank sliding block mechanism to convert the swinging movement of the door connecting seat 12 into the linear movement of the sliding shaft 14.

The hinge 1 further comprises an elastic supporting portion 17, one end of the elastic supporting portion 17 is fixedly connected with the box connecting seat 11, the other end of the elastic supporting portion 17 is connected with the sliding shaft and drives the door connecting seat 12 to rotate around the box connecting seat 11 through the limiting mechanism, and the limiting mechanism limits the elastic supporting portion 17 to do linear motion along the direction parallel to the box connecting plate 113. Specifically, the elastic supporting portion 17 includes a fixed end 1731 fixedly connected to the box connecting seat 11, and a sliding end 1711 connected to the sliding shaft 14, where the limiting mechanism limits the sliding shaft 14 to move linearly parallel to the box connecting plate 113, so as to drive the sliding end 1711 to move linearly parallel to the box connecting plate 113. Specifically, the sliding end 1711 is connected to the sliding shaft 14, the elastic supporting portion 17 is supported by the fixed end 1731, the sliding end 1711 moves parallel to the case connecting plate 113 along with the movement of the sliding shaft 14, that is, the movement in the direction perpendicular to the case connecting plate 113 is avoided, the movable space required in the inside is reduced, and the thickness of the hinge 1 can be made thin.

The linear motion of the elastic supporting portion 17 in this embodiment is different from the swinging motion of the conventional hinge 1, the moving direction of the sliding shaft 14 is parallel to the box connecting plate 113 and makes linear motion under the limitation of the limiting portion, and the sliding end 1711 of the elastic supporting portion 17 is further pulled to make linear motion parallel to the box connecting plate 113, so that the motion of the elastic supporting portion 17 is limited on the plane parallel to the box connecting plate 113, the movable space required inside the hinge 1 is greatly reduced, and the sliding shaft 14 does not need to be provided with an arc-shaped groove of the conventional hinge 1 because of the sliding shaft 14 moves on the plane parallel to the box connecting plate 113, so that the problem that a large amount of space is occupied due to the fact that the conventional hinge 1 is provided with the arc-shaped groove and the elastic supporting portion 17 swings back and forth is avoided, and therefore the hinge 1 can be made to be very thin and the strength of the structure of the hinge 1 is not affected, and the use effect of the hinge 1 is better.

Further, the limiting part includes a sliding groove 161, the sliding shaft 14 is coupled in the sliding groove 161 and slides along the sliding groove 161, and two ends of the sliding groove 161 limit the movement range of the sliding shaft 14, so as to limit the rotation angle of the door connecting seat 12 relative to the box connecting seat 11, thereby limiting the opening angle of the door 3 of the refrigerator relative to the box 2.

The sliding groove 161 extends along a direction perpendicular to the sliding shaft 14 and parallel to the case connecting plate 113, the sliding groove 161 includes a pair of mutually parallel limiting surfaces, the limiting surfaces also extend along a direction perpendicular to the sliding shaft 14 and parallel to the case connecting plate 113, and the sliding shaft 14 is coupled between the pair of limiting surfaces, so that the sliding shaft 14 slides along the sliding groove 161, and the sliding shaft 14 can be ensured to be always parallel to the case connecting plate 113 and the rotating shaft 111 in the moving process. The sliding groove 161 may be a through hole or a blind hole, the longitudinal section of the sliding groove 161 may be a waist shape, and the width between the pair of limiting surfaces is equal to or slightly larger than the diameter of the shaft of the sliding groove 161, and the sliding shaft 14 slides between the pair of limiting surfaces.

Further, the box connecting seat 11 includes a pair of first side walls 112, the first side walls 112 are provided with sliding grooves 161, the first side walls 112 are respectively disposed at two sides of the box connecting seat 113, the pair of first side walls 112 are relatively parallel, and correspondingly, the sliding grooves 161 on each first side wall 112 are correspondingly parallel to each other, that is, the sliding grooves 161 are also provided with two sliding grooves 161, two axial ends of the sliding shaft 14 are respectively coupled in the two sliding grooves 161, the sliding shaft 14 moves in the sliding grooves 161 of the first side walls 112 which are parallel to each other, that is, the sliding shaft 14 is slidingly connected to the box connecting seat 11, so that the situation that the sliding shaft 14 is always parallel to the box connecting seat 113 and the rotating shaft 111 in the moving process is ensured.

Further, the elastic supporting portion 17 includes a supporting beam 173, a supporting rod 171, and an elastic member 172 sleeved outside the supporting rod 171, the supporting beam 173 is fixedly connected with the box connecting seat 11, specifically, the supporting beam 173 includes a fixed end 1731 connected with the box connecting seat 11, one end of the elastic member 172 is fixed with the supporting beam 173, the other end abuts against the supporting rod 171, the supporting rod 171 is connected with the sliding shaft, specifically, one end of the supporting rod 171 far away from the supporting beam 173 is connected with the sliding shaft 14, and the supporting rod 171 includes a sliding end 1711 connected with the sliding shaft 14.

The support beam 173 is provided with an opening 1732, the support rod 171 passes through the opening 1732, the elastic member 172 may be provided as a spring, and the support rod 171 may move along with the extension and contraction of the spring under the elastic action of the spring, and since the sliding end 1711 may only move along a plane parallel to the case connecting plate 113 and the sliding shaft 14 is parallel to the rotating shaft 111, the movement mode of the sliding shaft 14 is limited in an up-and-down movement direction parallel to the linear movement of the case connecting plate 113, and the support rod 171 may move up-and-down linearly on a plane parallel to the case connecting plate 113. The sliding end 1711 of the supporting rod 171 may be fixedly disposed with the sliding shaft 14, but the supporting rod 171 may be rotatably connected with the sliding shaft 14 based on the requirements of convenience in production and assembly tolerance, and a circular or circular arc-shaped through hole is disposed on the supporting rod 171, and the sliding shaft 14 passes through the through hole.

Further, the hinge 1 further comprises a first shaft sleeve 18 sleeved on the outer side of the sliding shaft 14, so that the sliding shaft 14 is protected. The first shaft sleeve 18 is arranged between the support rod 171 and the connecting piece 15, the first shaft sleeve 18 limits the left-right movement of the support rod 171, so that the support rod 171 cannot touch the connecting piece 15, as shown in fig. 4, the connecting piece 15 can extend out to form two support legs which are respectively connected with the sliding shaft 14, the two support legs are respectively arranged on two sides of the support rod 171, the sliding shaft 14 is provided with the two first shaft sleeves 18, and the support rod 171 is limited to be in false touch with any support leg of the connecting piece 15.

Referring to fig. 4 to 5, further, the hinge 1 further includes a second sleeve 19 sleeved on the outer side of the swing shaft 13, so as to protect the swing shaft 13, reduce noise in the use process and abrasion of the swing shaft 13, prolong the service lives of the hinge 1 and the refrigerator, and improve the use experience of users. The door body connecting seat 12 includes a pair of second side walls 121 that set up relatively, and when the door body connecting seat 12 rotates relative to the box connecting seat 11, second side walls 121 rotate relative to first side walls 112 simultaneously, and oscillating axle 13 fixed connection is between a pair of second side walls 121, and with reference to fig. 7, the axial both ends of oscillating axle 13 are connected with a pair of second side walls 121 respectively. The second sleeves 19 are disposed between the connecting member 15 and the second side walls 121, in fig. 3, the two second side walls 121 are disposed opposite to each other, the connecting member 15 is disposed between the two second side walls 121, the swinging shaft 13 passes through the through hole of the connecting member 15 and then is fixedly connected with the second side walls 121 on both sides, the second sleeves 19 are disposed on both sides of the connecting member 15, that is, the second sleeves 19 are disposed on both sides of the connecting member 15, and the second sleeves 19 are disposed on both sides of the connecting member 15 to avoid the left-right movement of the connecting member 15 on the swinging shaft 13.

In other embodiments, the hinge 1 comprises a cover plate which permanently encapsulates the hinge 1 and forms the outer surface of the hinge 1, and the limiting portion comprises a first limiting member 16 provided on the cover plate or the case connecting plate 113, and a second limiting member 16 provided on the sliding shaft 14. One of the first limiting piece 16 and the second limiting piece 16 is provided with a limiting block, the other limiting piece is provided with a limiting groove, when the limiting piece moves in the limiting groove, the limiting piece and the limiting piece are mutually limited, on one hand, the limiting piece can only slide along a certain direction, and the limiting groove and the limiting piece are parallel to the box connecting plate 113, so that the movement direction of the elastic supporting portion 17 is limited and can only be parallel to the box connecting plate 113 and fixed.

Further, as shown in fig. 2 or 3, a first space 100 is formed between the door 3 and the case 2, the door 3 includes a closed state for closing the case 2 and an open state for opening the case 2, and the door connecting seat 12 has a door opening position and a door closing position, respectively; when the door body connecting seat 12 is at the door opening position, the door body 3 is in the opening state, and an included angle is formed between the door body connecting plate and the box body connecting plate 113; when the door connecting seat 12 is at the door closing position, the door 3 is in the closing state, and the door connecting plate is coplanar with the box connecting plate 113.

Referring to fig. 5 and 7, when the door 3 is switched from the closed state to the fully opened state, the swing shaft 13 moves to the first space 100, a distance is always kept between the swing shaft 13 and the door 3 and the box 2, a door seal 4 is generally required to be arranged between the door 3 and the box 2, and when the first space 100 exists between the door 3 and the box 2 and between the door seal 4, the swing shaft 13 moves from the inside of the hinge 1 to the position of the first space 100, that is, when the door 3 is fully opened, the swing shaft 13 is positioned on the side of the box 2 facing the plane where the box connecting plate 113 is positioned; by adjusting the height of the hinge 1 according to the position of the first space 100, the swing shaft 13 can not interfere with other structures of the refrigerator, so that the swing of the swing shaft 13 does not excessively swing due to the limitation of the sliding groove 161 on the sliding shaft 14, the arc-shaped groove of the conventional hinge 1 does not need to be arranged, and the swing of the swing shaft 13 does not occupy the space inside the hinge 1, but the first space 100 of the refrigerator itself is utilized, so that the thickness of the hinge 1 can be further made thinner.

Compared with the prior art, the hinge 1 and the refrigerator with the hinge have the following beneficial effects: the limiting mechanism limits the rotation angle of the door body connecting seat 12 relative to the box body connecting seat 11, so as to limit the opening angle of the door body 3 of the refrigerator relative to the box body 2; in the process that the door body connecting seat 12 rotates around the box body connecting seat 11, the hinge 1 limits the elastic supporting part 17 to do linear motion along the direction parallel to the box body connecting plate 113 through the limiting mechanism, so that the problem that the elastic supporting part swings back and forth to occupy a large amount of space in the traditional hinge is avoided, the hinge 1 can be made to be very thin, the strength of the hinge structure is not influenced, the requirement and damage to the elastic supporting part are reduced, the elastic supporting part 17 does not need to swing back and forth and also plays a supporting role, the thinning of the hinge 1 can reduce the storage space of a refrigerator, and the boxing amount in transportation can be made to be larger; the sliding shaft 14 is matched and connected in the sliding groove 161, and the sliding shaft 14 is connected with the swinging shaft 13 through the connecting piece 15, so that the door connecting seat 12 is driven to rotate relative to the box connecting seat 11; the swing shaft 13 and the sliding shaft 14 are sleeved with the shaft sleeves, so that the swing shaft 13 and the sliding shaft 14 can be protected; the problem that the thickness of the hinge is large due to the fact that the arc-shaped groove is formed in the traditional hinge and the swinging shaft moves in the arc-shaped groove is avoided, the arc-shaped groove of the traditional hinge is omitted, so that the hinge 1 can be made to be very thin, the strength of the structure of the hinge 1 is not affected, the space required by storage and transportation of the refrigerator is reduced, and the boxing amount of the refrigerator is increased; in the process of rotating the door body connecting seat 12 around the box body connecting seat 11, the swinging shaft 13 can swing to the plane of the box body connecting plate 113 towards one side of the box body 2, and the swinging of the swinging shaft 13 can use the space between the door body 3 and the box body 2, so that the thickness of the hinge 1 is reduced, and the loading amount of the refrigerator during storage and transportation is improved; in the process of overturning the door body connecting seat 12 around the rotating shaft 111 of the box body connecting seat 11, the swinging shaft 13 is driven to do swinging motion, the swinging shaft 13 pulls the connecting piece 15 to drive the sliding shaft 14 to move, the sliding shaft 14 does linear motion under the limit of the limiting part, the sliding end 1711 of the supporting part is further pulled to do linear motion, the problem that a large amount of space is occupied due to the fact that the traditional hinge 1 is provided with an arc-shaped groove and the supporting part swings back and forth is avoided, the hinge 1 can be made to be very thin, the strength of the structure of the hinge 1 is not affected, the supporting part cannot swing back and forth and simultaneously has the supporting effect, the structure inside the hinge 1 is not easy to break away from and damage, the structure of the limiting part can be simpler, the width of a refrigerator can be reduced due to thinning of the hinge 1, and the box loading amount during transportation can be made to be larger.

The above detailed description is merely illustrative of possible embodiments of the present invention, which should not be construed as limiting the scope of the invention, and all equivalent embodiments or modifications that do not depart from the spirit of the invention are intended to be included in the scope of the invention.

Claims

1. The refrigerator comprises a door body, a box body and a hinge, wherein the hinge comprises a box body connecting seat and a door body connecting seat rotationally connected with the box body connecting seat, the door body connecting seat is fixedly connected with the door body, the box body connecting seat is fixedly connected with the box body, and the box body connecting seat further comprises a box body connecting plate; the door body connecting seat comprises a rotating shaft and a pair of first side walls which are oppositely arranged in parallel, the door body connecting seat is rotationally connected to the rotating shaft, the door body connecting seat comprises a pair of second side walls which are oppositely arranged, the pair of second side walls are positioned between the pair of first side walls, the hinge further comprises a swinging shaft, a sliding shaft, a limiting part, an elastic supporting part and a connecting piece, the swinging shaft is fixedly connected to the door body connecting seat and is parallel to the rotating shaft, the sliding shaft is parallel to the swinging shaft, the limiting part limits the moving direction of the sliding shaft to be parallel to the box connecting plate, the elastic supporting part comprises a fixed end fixedly connected with the box connecting seat and a sliding end connected with the sliding shaft, the two axial ends of the swinging shaft are respectively connected with the pair of second side walls, the sliding shaft is slidingly connected with the box connecting seat, the connecting piece is rotationally connected with the swinging shaft and the sliding shaft, and the first space is formed between the door body and the box, and the first space is switched to be in a completely opened state when the first space is switched to be in a completely opened state.

2. The refrigerator according to claim 1, wherein the elastic supporting portion comprises a supporting beam, a supporting rod and an elastic piece sleeved outside the supporting rod, and the supporting beam is fixedly connected with the box body connecting seat; one end of the supporting rod penetrates through the supporting cross beam, and the other end of the supporting rod is connected with the sliding shaft; one end of the elastic piece is propped against the supporting rod.

3. The refrigerator of claim 2, wherein the case connecting base further comprises a case connecting plate connecting the pair of first side walls, and the sliding shaft drives the elastic supporting portion to linearly slide in a direction parallel to the case connecting plate.

4. The cooler of claim 2, wherein said resilient member is a spring.

5. The refrigerator according to claim 1, wherein the limiting portion includes a sliding groove, the sliding shaft is coupled in the sliding groove and slides along the sliding groove, and two ends of the sliding groove limit the movement amplitude of the sliding shaft relative to the box body connecting seat.

6. The refrigerator according to claim 5, wherein the sliding groove includes a pair of limiting surfaces parallel to each other, and the sliding shaft is disposed between the pair of limiting surfaces and slides along the sliding groove.

7. The refrigerator according to claim 5, wherein two sliding grooves are provided, the two sliding grooves are relatively parallel and are respectively arranged on the pair of first side walls, and two axial ends of the sliding shaft are respectively matched and connected in the two sliding grooves.

8. The refrigerator of claim 1, further comprising a cover plate, wherein the case connection base further comprises a case connection plate, the limiting portion comprises a first limiting member and a second limiting member, the first limiting member is disposed on the cover plate or the case connection plate, the second limiting member is disposed on the sliding shaft, and the first limiting member and the second limiting member cooperate to limit the movement amplitude of the sliding shaft relative to the case connection base.

9. The cooler of claim 8, wherein one of said first stop and said second stop is configured as a stop block and the other of said first stop and said second stop is configured as a stop slot, said stop moving within said stop slot.

10. The cooler of claim 8, wherein said swing shaft is located on a side of a plane of said cabinet connecting plate facing said cabinet when said door is in a fully opened state.