CN116733324A

CN116733324A - Hinge assembly and drawer

Info

Publication number: CN116733324A
Application number: CN202310156174.6A
Authority: CN
Inventors: 徐志国; 杨发林
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2023-09-12
Also published as: CN113404395A; CN113404395B

Abstract

The invention provides a hinge assembly and a drawer, wherein the hinge assembly comprises a hinge fixing seat, a hinge plate and a pivot connecting part arranged between the hinge fixing seat and the hinge plate, and the hinge fixing seat and a hinge matching seat form an accommodating space for accommodating the hinge plate; the hinge plate comprises an arc-shaped arm, a supporting arm and a connecting arm, wherein the supporting arm and the connecting arm are respectively connected with the two ends of the arc-shaped arm, the free end of the connecting arm is rotationally connected with the hinge fixing seat through the pivot connecting part, and the pivot connecting part is positioned at the center of the arc-shaped arm. Through the structure, the area of the hinge plate which is scratched in the rotating process and the opening through which the hinge plate passes are smaller, so that the appearance of the whole hinge assembly is simpler and more attractive.

Description

Hinge assembly and drawer

Technical Field

The invention relates to the technical field of hinges, in particular to a hinge assembly and a drawer with a cover.

Background

In order to meet the diversified and personalized storage requirements of users, a fresh-keeping sealing drawer is arranged in refrigeration equipment, and the sealing drawer applied to the refrigerator generally needs to rely on the weight of an upper cover to ensure the sealing effect between the upper cover and the sealing drawer, however, the existing hinge structure cannot meet the appearance requirements of the fresh-keeping sealing drawer and the strength requirements for supporting a cover body.

Disclosure of Invention

The present invention provides a new hinge assembly, drawer, to address one of the above problems.

In order to achieve the above purpose, the technical scheme provided by the invention is as follows:

the present invention provides a hinge assembly comprising:

the hinge fixing seat and the hinge matching seat form an accommodating space for accommodating the hinge plate;

the hinge plate comprises an arc-shaped arm, a supporting arm and a connecting arm, wherein the supporting arm and the connecting arm are respectively connected with the two ends of the arc-shaped arm, the free end of the connecting arm is rotationally connected with the hinge fixing seat through the pivot connecting part, and the pivot connecting part is positioned at the center of the arc-shaped arm.

Further, the pivot connecting portion comprises a rotating shaft arranged on the hinge fixing seat and a shaft hole arranged at the free end of the connecting arm and matched with the rotating shaft, and the shaft hole is located at the circle center of the arc-shaped arm.

Further, the hinge plate has at least an initial state in which the arc-shaped arm is overlapped with the hinge fixing seat and a use state in which the arc-shaped arm extends out of the hinge fixing seat, and in the initial state, the support arm and the connection part of the arc-shaped arm and the connection arm are respectively positioned at two sides of the circle center of the arc-shaped arm.

Further, the total length of the arc arm and the support arm is greater than the length of the connecting arm, the support arm is provided with an inner side surface adjacent to the pivot connecting portion, the arc arm is provided with an inner side surface respectively close to the pivot connecting portion, and in a use state, the linear distance from the inner side surface of the support arm to the pivot connecting portion is smaller than the linear distance from the inner side surface farthest from the linear distance between the arc arm and the pivot connecting portion to the pivot connecting portion.

Further, the hinge fixing seat comprises a fixing plate and a limiting plate, wherein the fixing plate is arranged in parallel with the plane where the arc-shaped arm is located, the limiting plate is connected to one end of the fixing plate, an opening for the hinge plate to pass through is formed in the limiting plate, the pivot connecting portion is close to the limiting plate and is arranged at a certain distance from the opening, a limiting groove is formed in the connecting portion of the connecting arm and the arc-shaped arm, and the limiting plate is located in the limiting groove when the arc-shaped arm stretches out of the hinge fixing seat in a use state.

Further, the hinge fixing base further comprises a left side plate used for connecting the limiting plate and the fixing plate, the left side plate is arranged in an adjacent opening, a limiting part is arranged on the inner side wall of the left side plate, and a plurality of limiting blocks matched with the limiting part are arranged on the outer side of the arc-shaped arm.

Further, the hinge matching seat comprises a matching plate parallel to the plane where the fixing plate is located, a matching part protruding into the accommodating cavity from the matching plate and matched with the pivot connection part, and an extension plate matched with the hinge plate, wherein the shape of the extension plate is consistent with that of the hinge plate.

Further, the hinge matching seat further comprises a right side plate and a bottom plate, wherein the right side plate and the bottom plate are used for respectively connecting the fixing plate and the limiting plate, the right side plate comprises a vertical part arranged adjacent to the matching part and an inclined part below the vertical part, and the connecting arm is lapped on the inclined part in an initial state of matching the hinge assembly and the drawer; the bottom plate is located the lower extreme of tilting part, and wholly take the form of cambered surface shape to be located the below of arc arm.

Further, the fixing plate and the matching plate are fixed by bolts, a pair of screw holes are formed in opposite corners of the fixing plate and the matching wall, one screw hole penetrates through the pivot connecting portion and the matching portion along the length direction of the pivot connecting portion, and the other screw hole is located below one end of the bottom plate away from the inclined portion.

The invention also provides a drawer, which comprises an upward opening drawer body, a cover body for covering the drawer body and the hinge assembly used for connecting the cover body and the same side of the drawer body, wherein the drawer body is provided with a side wall, the side wall is provided with a containing cavity for containing the hinge assembly, the hinge matching seat is arranged against the inner wall of the side wall, and one end of the supporting arm, which is far away from the hinge fixing seat, is fixed on the cover body.

Compared with the prior art, the invention has the beneficial effects that: the hinge component of the invention ensures that the area of the hinge plate which is scratched in the rotating process of the hinge plate and the opening through which the hinge plate passes are smaller by coaxially arranging the arc-shaped arm and the pivot connecting part of the hinge plate, so that the appearance of the whole hinge component is simpler and more attractive.

Drawings

FIG. 1 is a schematic perspective view of a hinge assembly according to an embodiment of the present invention in an initial state.

Fig. 2 is a schematic perspective view of the hinge assembly of the embodiment of fig. 1 in use.

Fig. 3 is a front view of the hinge assembly of the embodiment of fig. 2 in use.

Fig. 4 is an exploded view of the components of the hinge assembly of the embodiment of fig. 1 at another angle.

Fig. 5 is a front view of a hinge mating receptacle in another embodiment of the hinge assembly of the present invention.

Fig. 6 is a front view of the hinge plate and hinge mating receptacle mated in the embodiment of fig. 5.

Fig. 7 is a perspective view schematically showing an opened state of a cover in one embodiment of the drawer of the present invention.

FIG. 8 is a partial schematic view of a drawer side panel in cooperation with the hinge assembly of the embodiment of FIG. 1.

Fig. 9 is an enlarged view of a partial structure at a in fig. 8.

FIG. 10 is a partial schematic view of a drawer side panel in cooperation with the hinge assembly of the embodiment of FIG. 5.

Fig. 11 is a schematic perspective view of the evacuation device and pressure relief assembly of the embodiment of fig. 7.

Fig. 12 is a schematic perspective view of the pressure relief assembly of fig. 11 in an open pressure relief state.

Fig. 13 is a schematic perspective view of the pressure relief assembly of fig. 11 in a closed state.

Fig. 14 is a front view of the handle of fig. 11.

Fig. 15 is a schematic perspective view of the plastic package assembly in the drawer in the embodiment of fig. 7.

Fig. 16 is a cross-sectional view of the plastic package assembly of fig. 15 taken along A-A.

Detailed Description

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that, the directions or positional relationships indicated by the terms "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, and are merely for simplifying the description of the present invention, and are not meant to indicate or imply that the apparatus must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the scope of the present invention. Specifically, in the present invention, the description of other directions is defined with reference to "up" and "down" with the operation surface of the user as the front surface and the direction toward the ground as the down, and conversely, the direction away from the ground as the up.

In the various illustrations of the invention, some dimensions of structures or portions may be exaggerated relative to other structural portions for convenience of illustration, and thus serve only to illustrate the basic structure of the inventive subject matter.

A hinge assembly 10, as shown in fig. 1-6, comprising: a hinge fixing seat 11, a hinge plate 12, and a pivot connection part 13 arranged between the hinge fixing seat 11 and the hinge plate 12; the hinge plate 12 comprises an arc arm 121, a supporting arm 123 and a connecting arm 122 which are respectively connected with two ends of the arc arm 121, the free end of the connecting arm 122 is rotationally connected with the hinge fixing seat 11 through the pivot connecting part 13, and the pivot connecting part 13 is positioned at the center of the arc arm 121, so that the area of the hinge plate 12 scratched in the rotating process of the hinge plate 12 and the opening through which the hinge plate 12 passes are smaller, the appearance of the whole hinge assembly 10 is simpler and more attractive, the whole structure of the hinge plate 12 is more compact, and the whole strength of the hinge assembly 10 is further enhanced.

The hinge assembly 10 of the present invention can be applied to the cooperation between a case and a cover or between a case and a door, including the case of opening and closing up and down or opening and closing right and left or opening and back and forth, and the present invention also relates to a drawer with a cover thereon, the drawer including a drawer body 2 and a cover 20 covering the drawer body 2, and the present invention will be described in detail taking the hinge assembly 10 disposed on the same side of the cover 20 and the drawer body 2 as an example.

In the present invention, the hinge plate 12 has at least an initial state where the arc arm 121 is overlapped with the hinge fixing base 11 and a use state where the arc arm 121 extends out of the hinge fixing base 11, and when the arc arm 121 extends out of the hinge fixing base 11, the maximum limit is the fully opened state of the hinge plate 12.

Specifically, the connecting arm 122 is used to connect the arc arm 121 and the hinge fixing base 11, that is, one end of the connecting arm 122 is connected to the arc arm 121, and the other end is fixed to the hinge fixing base 11 through the pivot connection portion 13. In this embodiment, in the fully opened state of the hinge plate 12, the length of the connecting arm 122 is enough not to extend out of the hinge fixing seat 11, so as to further strengthen the overall strength of the hinge plate 12.

Further, the length of the arc arm 121 is not greater than one fourth of the circumference of the circle where the arc arm 121 is located, that is, the maximum rotation angle of the hinge plate 12 is 90 degrees, and at this time, the cover 20 engaged with the hinge plate 12 is turned from the horizontal state to the vertical state, so as to ensure that the hinge plate 12 just can support the cover 20.

In this embodiment, a plurality of limiting blocks 1211 matched with the hinge fixing base 11 are disposed on the outer side of the arc arm 121, so that the hinge plate 12 is limited to a desired position without being completely opened in a use state, and preferably, the limiting blocks 1211 are preferably set to positions 40 °, 50 °, 60 ° relative to the horizontal, so as to increase the use experience of the user.

Further, the support arm 123 is connected to the end of the arc arm 121 away from the connecting arm 122, and the support arm 123 is used to fix the hinge plate 12 on the cover 20, preferably, the outer edge of the support arm 123 extends in the vertical direction, and when the hinge plate 12 is in the fully opened state, the outer edge of the support arm 123 is just in the horizontal state, so as to facilitate the cooperation with the cover 20 and keep the cover 20 in the vertical state.

Further, in the initial state, the connection parts of the supporting arm 123 and the arc arm 121 and the connecting arm 122 are respectively located at two sides of the center of the arc arm 121, so that the overall structure of the hinge plate 12 is compact, and the strength of the hinge plate 12 is further enhanced.

Further, the total length of the arc arm 121 and the support arm 123 is greater than the length of the connecting arm 122, the support arm 123 has an inner side surface 1231 adjacent to the pivot connecting portion 13, the arc arm 121 has an inner side surface 1212 adjacent to the pivot connecting portion 13, and in the use state, the linear distance from the inner side surface 1231 of the support arm 123 to the pivot connecting portion 13 is smaller than the linear distance from the inner side surface 1212 furthest from the arc arm 121 and the pivot connecting portion 13 to the pivot connecting portion 13, that is, the support arm 123 is in the horizontal position, and the center of gravity of the support arm 123 is lower than the center of gravity of the arc arm 121, so as to lower the center of gravity of the whole hinge plate 12, and the cover 20 is kept in the vertical state by the cooperation of the cover 20 and the hinge plate 12 and by the gravity of the cover 20 itself.

Preferably, the angle between the straight line of the outer wall surface of the supporting arm 123 and the tangent line of the connection between the arc arm 121 and the connecting arm 122 is between 60 ° and 70 °, so that when the arc arm 121 extends out of the hinge fixing base 11, the connecting arm 122 is still located in the hinge fixing base 11, so as to ensure the stability of the overall structure of the hinge assembly 10.

The connection part of the connecting arm 122 and the arc-shaped arm 121 forms a limiting groove 124, and in the use state, the limiting groove 124 and the hinge fixing seat 11 are mutually matched so that the hinge plate 12 is in a stable state.

Preferably, the connecting arm 122, the arc-shaped arm 121 and the supporting arm 123 are integrally formed, so that the strength of the hinge plate 12 is further enhanced, and the hinge plate 12 can support the heavy cover 20.

As a preferred embodiment of the present invention, the hinge fixing base 11 includes a fixing plate 111 disposed parallel to the plane of the arc arm 121, and a limiting plate 112 connected to one end of the fixing plate 111, the limiting plate 112 is provided with an opening 114 through which the hinge plate 12 passes, and the hinge fixing base 11 is used for fixing the hinge plate 12 and implementing rotation of the hinge plate 12 along with the cover 20 on the plane of the fixing plate 111.

Specifically, the limiting plate 112 is vertically disposed at the upper end of the fixing plate 111 and extends toward the side where the hinge plate 12 is located, when the hinge plate 12 rotates 90 ° to be in a completely opened use state, the limiting plate 112 is located in a limiting groove 124 at a connection position between the connecting arm 122 and the arc-shaped arm 121, the connecting arm 122 is attached to the lower portion of the limiting plate 112, the limiting plate 112 is used for limiting the maximum opening angle of the hinge plate 12, and at this time, the supporting arm 123 is just in a horizontal state which is beneficial to supporting the cover 20.

Further, the hinge fixing base 11 further includes a left side plate 113 for connecting the limiting plate 112 and the fixing plate 111, and the left side plate 113 is disposed adjacent to the opening 114, that is, the left side plate 113 is disposed adjacent to the hinge plate 12.

In this embodiment, as shown in fig. 4, a limiting portion 1121 is disposed on the inner side wall of the left side plate 113, and the limiting portion 1121 is used to cooperate with a limiting block 1211 on the arc arm 121, so as to meet the requirement that the hinge plate 12 can be stopped at a desired position. Preferably, the limiting portion 1121 is made of an elastic material, so as to facilitate deformation when pressed against the limiting block 1211 on the arc-shaped arm 121, so that the hinge plate 12 can be freely switched between the initial state and the use state.

The shape of the limiting portion 1121 includes, but is not limited to, triangle, circle, rectangle, trapezoid, etc.

As a preferred embodiment of the present invention, the pivot connection portion 13 is disposed close to the limiting plate 112 and spaced apart from the opening 114 by a certain distance, specifically, the pivot connection portion 13 includes a rotation shaft 131 disposed on the hinge fixing base 11, and a shaft hole 132 disposed at a free end of the connection arm 122 and matched with the rotation shaft 131, and the shaft hole 132 is located at a center of the arc arm 121, that is, the hinge plate 12 is sleeved on an outer side of the rotation shaft 131 through the shaft hole 132 so that the hinge plate 12 can rotate relative to the rotation shaft 131.

It will be appreciated that the shaft 131 may be disposed at a free end of the connecting arm 122, and the shaft hole 132 may be disposed on the fixing plate 111, so as to achieve the purpose of rotating the hinge plate 12 relative to the fixing plate 111.

As a preferred embodiment of the present invention, as shown in fig. 5 to 6, the hinge assembly 10 further includes a hinge fitting seat 15 that mates with the hinge fixing seat 11, the hinge fixing seat 11 and the hinge fitting seat 15 form a receiving space (not shown) for receiving the hinge plate 12, specifically, the hinge fitting seat 15 includes a fitting plate 151 parallel to a plane where the fixing plate 111 is located, and a right side plate 155 and a bottom plate 156 for respectively connecting the fixing plate 111 and the limiting plate 112, so that the hinge plate 12 is located in the receiving space, and the hinge assembly 10 forms a complete structure, thereby improving the applicability of the hinge assembly 10.

Further, the engaging plate 151 is provided with an engaging portion 153 protruding from the engaging plate 151 into the accommodating space and engaged with the pivot connecting portion 13, in this embodiment, the engaging portion 153 is provided with an engaging groove opening toward the direction of the rotating shaft 131, in the assembled state of the hinge assembly 10, the connecting arm 122 is sleeved on the rotating shaft 131, and one end of the rotating shaft 131 away from the fixing plate 111 is inserted into the engaging groove, so as to realize the rotation of the hinge plate 12 in the accommodating space.

Of course, when the rotating shaft 131 of the pivot connection portion 13 is disposed on the connection arm 122, the engaging portion 153 is an engaging groove (not shown) capable of accommodating an end of the rotating shaft 131 away from the fixing plate 111, so that the hinge plate 12 can rotate between the fixing plate 111 and the engaging plate 151, which is within the scope of the present invention.

Further, the hinge mating seat 15 further includes an extension plate 154 protruding from the mating plate 151 into the accommodating space 152 and mating with the hinge plate 12, where the shape of the extension plate 154 is consistent with the shape of the hinge plate 12, so as to limit the space in the thickness direction of the hinge plate 12 in the accommodating space, thereby effectively preventing the hinge plate 12 from being shifted in the thickness direction.

Further, the right side plate 155 includes a vertical portion 1551 disposed adjacent to the mating portion 153, and an inclined portion 1552 disposed below the vertical portion 1551, in an initial state, the connecting arm 122 is mounted on the inclined portion 1552, that is, the inclined portion 1552 is used for supporting the connecting arm 122 to balance the gravity applied to the hinge plate 12, when the hinge plate 12 is switched from the initial state to the working state, the force for lifting the cover 20 can be effectively reduced, and meanwhile, the overall stability of the hinge assembly 10 can be ensured.

The bottom plate 156 is located at the lower end of the inclined portion 1552 and is integrally in a cambered surface shape, and is located below the arc-shaped arm 121 when the hinge plate 12 is in an initial state, so as to support and guide the movement of the arc-shaped arm 121.

It will be appreciated that the right side plate 155 and the bottom plate 156 of the hinge assembly seat 15 may be disposed at corresponding positions on the hinge assembly seat 11, and may also be engaged with the hinge plate 12.

Further, the fixing plate 111 and the matching plate 151 are fixed by bolts, and a pair of screw holes 14 are formed at opposite corners of the fixing plate 111 and the matching plate 151, so that stress between the fixing plate 111 and the matching plate 151 can be balanced, and strength of the whole hinge assembly 10 can be enhanced. In this embodiment, one of the screw holes 14 is disposed at the corner of the pivot connection portion 13, and the other screw hole 14 is disposed below the end of the bottom plate 156 away from the inclined portion 1552, specifically, the screw hole 14 penetrates through the pivot connection portion 13 and the mating plate 151 along the length direction of the pivot connection portion 13, that is, the screw bolt penetrates through the rotating shaft 131 and the mating portion 153 in sequence, so that the number of mating fixing points between the two can be reduced, and the appearance of the hinge assembly 10 is more concise.

The present invention also provides a drawer, as shown in fig. 7 to 10, which includes a drawer body 2 opened upward, a cover 20 for covering the drawer body 2, and a hinge assembly 10 for connecting the cover 20 to the same side of the drawer body 2, wherein the hinge fixing base 11 is fixed to a side wall 21 of the drawer body 2, one end of the support arm 123 remote from the hinge fixing base 11 is fixed to the cover 20, and in particular, the hinge assembly 10 is fixed to rear ends of the drawer body 2 and the cover 20, so as to facilitate the operation of a user at the front of the drawer.

As a preferred embodiment of the present invention, as shown in fig. 7, the side wall 21 is provided with a receiving cavity 211 for receiving the hinge assembly 10, it is understood that when the hinge assembly 10 does not have the hinge fitting seat 15, a side surface of the side wall 21 corresponding to the hinge fixing seat 11 serves as a fitting plate 151, and as shown in fig. 9, correspondingly, the fitting plate 151 is provided with a fitting portion 153 for fitting with the pivot connection portion 13 and an extension plate 154 for fitting with the hinge plate 12, and structures and functions of the vertical portion 1551, the inclined portion 1552 and the bottom plate 156, which are all the same as those of the hinge fitting seat 15, are not repeated.

When the hinge assembly 10 has the components of the hinge mating seat 15, the hinge assembly 10 is directly fixed in the receiving cavity, as shown in connection with fig. 10, to promote applicability of the entire hinge assembly.

As a preferred embodiment of the present invention, the drawer further includes a control module 70, where the control module includes a control unit (not shown) located in the accommodating space, and an operation display board 71 communicatively connected to the control unit, and specifically, the control unit is communicatively connected to the vacuum pumping device 30, and is configured to receive, process, and send signals to implement precise control over specific operations of the drawer.

In a preferred embodiment of the present invention, the drawer is a vacuum drawer, the drawer has a cavity 23 for accommodating articles, and the drawer further includes a vacuum pumping device 30, in order to increase the tightness of the drawer, in this embodiment, the cover 20 is provided with a sealing ring 21 matched with the drawer body 2, so as to meet the diversified demands of users.

Further, as shown in fig. 11, the vacuum apparatus 30 includes a vacuum pump 31, a vacuum tube 32 communicating the vacuum pump 31 with the cavity 23, an exhaust pipe 33 communicating the vacuum pump 31 with the outside, and a pressure sensor 34 communicating the vacuum tube 32, so as to implement a vacuum pumping operation before the plastic packaging operation.

In this embodiment, the vacuum pumping device 30 is located at the front portion of the accommodating space, and is disposed adjacent to the control module 70, so as to optimize the communication mode of each pipeline communicating with the vacuum pump 31, and further includes a four-way connecting member 35 communicating with the vacuum pump 31, where the exhaust pipe 33 and the four-way connecting member 35 are disposed on the vacuum pump 31 at intervals.

The pressure sensor 34 is in communication connection with the control unit to transmit the pressure condition in the cavity 23 to the control unit, so that the control unit can conveniently perform subsequent operations.

As a preferred embodiment of the present invention, the drawer further includes a pressure relief assembly 40 in communication with the vacuum apparatus 30, as shown in fig. 11 to 14, the pressure relief assembly 40 includes a vent pipe 41 in communication with the vacuum apparatus 30, a movable structure 42 for sealing an end of the vent pipe 41 away from the vacuum apparatus 30, a handle 43 located at a side of the movable structure 42, and a transmission structure 44 cooperatively disposed between the movable structure 42 and the handle 43, wherein the transmission structure 44 is configured to: the handle 43 may drive the movable structure 42 to move toward or away from the opening of the air leakage pipe 41 through the transmission structure 44. In this embodiment, the pressure relief assembly 40 is located longitudinally outside the drawer. Wherein, the air release pipe 41 is communicated with the vacuum pump 31 through the four-way connecting piece 35, and the pressure release assembly 40 of the embodiment is matched with the vacuumizing device 30, so that the number of the openings of the cavity 23 communicated with the outside is reduced, and the vacuum degree in the drawer in the plastic packaging process is maintained.

Specifically, the transmission structure 44 includes a sliding block 441 disposed on the movable structure 42, a sliding groove 442 disposed on one side of the handle 43 near the movable structure 42, a through hole (not shown) is disposed on the outer wall 13 and at a position corresponding to the sliding block 441, the sliding block 441 passes through the through hole to be matched with the sliding groove 442, a rotating shaft portion 433 is disposed on the handle 43, the handle 43 is fixed on the outer side of the outer wall through the rotating shaft portion 433, that is, the handle 43 rotates to move the sliding block 441 through the guiding of the sliding groove 442, so as to drive the movable structure 42 to move along the length direction of the through hole.

Further, the handle 43 includes a handle seat 431 and a handle 431, the rotating shaft portion 433 is disposed on the handle seat 431, the chute 442 is integrally located between the rotating shaft portion 433 and the handle 431 in an arc shape, the chute 442 has a first end 4421 close to the handle 431 and a second end 4422 far away from the first end 4421, a distance between the first end 4421 and the rotating shaft portion 433 is greater than a distance between the second end 4422 and the rotating shaft portion 433, when the pressure release assembly 40 is in an open state, the slider 441 is located at the second end, at this time, the slider 441 is located above the rotating shaft portion 433, when the pressure release assembly 40 is in a closed state, the chute 442 rotates to a position above the rotating shaft portion 433, at this time, the slider 441 is located at the first end 4421, and because the distances from the first end 4421 and the second end 4422 to the rotating shaft portion 433 are not equal, so that the chute 442 drives the slider 441 to move up and down relative to the rotating shaft portion 433, and further drives the movable structure 42 to move up and down to switch between the closed state and the open state 41.

Further, the pressure relief assembly 40 further includes a connector 45 located between the air relief pipe 41 and the movable structure 42, for changing the opening direction of the air relief pipe 41, and in this embodiment, the connector 45 is in an L-shape and is connected between the air relief pipe 41 and the movable structure 42.

Further, the pressure relief assembly 40 further includes a support plate 46 protruding into the accommodating space from the outer wall for supporting the movable structure 42, and an elastic member 47 located between the movable structure 42 and the support plate 46, when the movable structure 42 approaches the connecting head 45, the elastic member 47 is in a compressed state, and an upward abutment force is applied to the movable structure 42 by using the elastic force of the elastic member 47, so as to promote the fit between the movable structure 42 and the connecting head 45.

Further, the movable structure 42 includes a sealing block 421 adjacent to the connector 45, and a movable block 422 for fixing the sealing block 421, that is, the sliding block 441 is located at a side portion of the movable block 422, and one end of the movable block 422 away from the connector 45 is matched with the elastic member 47, preferably, the sealing block 421 is made of a rubber material, so as to further enhance the matching between the sealing block 421 and the connector 45.

As a preferred embodiment of the present invention, as shown in fig. 15 to 16, the drawer is provided with the plastic package assembly 60, which can satisfy that the plastic package assembly 60 has a certain distance with at least the inner wall or the cover 20 at low temperature of food, that is, when the plastic package assembly 60 is disposed close to the inner wall, the plastic package assembly 60 has a certain distance with the cover 20, and when the plastic package assembly 60 is disposed close to the cover 20, the plastic package assembly 60 has a certain distance with the inner wall, so that when the plastic package assembly is used for using the plastic package function, the plastic package bag for containing food is communicated with the cavity, and air in the plastic package bag is conveniently evacuated.

In this embodiment, the plastic package assembly 60 is located at the front portion of the cavity 23 and has a certain distance from the inner wall, and when the plastic package function is not used, the conventional storage function of the drawer is not affected.

Specifically, as shown in fig. 15 to 16, the plastic package assembly 60 includes a fixing seat 61 provided in the cavity 23, a heating plate 62 provided on the fixing seat 61, and a molding bar 22 provided on the cover 20 at a position corresponding to the heating plate 62, at least one of the fixing seat 61 and the molding bar 22 being controllably moved close to the other during the plastic package operation.

In this embodiment, the fixing base 61 is in communication connection with the control module, when the vacuum in the cavity 23 reaches the set requirement, the plastic package assembly 60 starts to work, at this time, the control module controls the fixing base 61 to move up to the position of the pressing bar 22, and after the plastic package operation is completed, the control module controls the fixing base 61 to reset. It will be appreciated that the movement of the holder 61 is a fine adjustment, which facilitates operation.

Further, the heating plate 62 includes a heating plate main body 621 for heating, vertical plates 622 bent downward from both ends of the heating plate main body 621, and connection plates 623 bent in opposite directions from the ends of the vertical plates 622, and the connection plates 623 are connected with cables of the refrigerating apparatus, so that the distance between the heating plate main body 621 and the connection plates 623 meets the requirement of an electrical gap of the electrical appliance, and the electrical safety is improved.

Further, the fixing base 61 has a fixing base body 611 for supporting the heating plate 62, the fixing base body 611 is provided with a groove 612 for accommodating the heating plate 62, the heating plate body 621 is located in the groove 612, and the heating plate 62 is located in the groove 612, so that on one hand, the safety of electricity consumption is increased, and on the other hand, the heat conduction of the heating plate 62 in the cavity 23 is reduced.

Further, the fixing base 61 further includes side plates 613 extending from the same side of the four end edges of the fixing base body 611, a cavity (not shown) is formed between the fixing base body 611 and the side plates 613, and a connecting hole 614 for communicating the groove 612 and the cavity is formed in the fixing base body 611; the vertical plate 622 passes through the connecting hole 614, and the connecting plate 623 and the vertical plate 622 are both positioned in the cavity, that is, the heating plate main body 621, the vertical plate 622 and the connecting plate 623 are respectively positioned at two sides of the fixing seat main body 611, thereby improving the electricity safety.

In this embodiment, the fixing base 61 further includes a support post 616 protruding into the cavity from the surface of the fixing base body 611 facing away from the groove 612 and used for fixing the heating plate 62, where the support post 616 is located between the fixing base body 611 and the connecting plate 623, on one hand, for fixing the heating wire 62, and on the other hand, for ensuring a certain distance between the connecting plate 623 and the heating plate body 621, so as to meet the electrical gap distance of the electrical appliance, preferably, an insulating layer is disposed on the outer side of the support post 616, preventing short circuit, and improving electrical safety.

Further, the length of the pressing strip 22 is not greater than the length of the groove 612, and the thickness of the pressing strip 22 is not less than the linear distance from the heating plate 62 to the cover 20, so that the pressing strip 22 can apply a downward pressure to the heating plate main body 621 in the groove 612 in the plastic packaging process, and the completion of the plastic packaging operation is accelerated.

It can be understood that the fixing base body 611 may not have the groove 612, so long as the heating plate 62 is fixed to the support column 616 through the connecting plate 623, the heating plate is not affected to heat when being electrified, and the purpose of plastic packaging is further achieved.

Further, the plastic package assembly 60 further includes a pressing tongue 63 disposed at two ends of the fixing base body 611, specifically, the pressing tongue 63 includes a connection portion 631 fixed on the fixing base body 611, and a pressing portion 631 extending from an end of the connection portion 631 toward a middle direction of the fixing base body 611, where the pressing portion 631 is higher than the heating plate 62, so as to effectively avoid position deviation of the plastic package bag in a vacuumizing process, and realize precise plastic package.

It can be appreciated that the positioning of the plastic package bag can be achieved by the bag pressing tongue 63 being located at the front side and the rear side of the groove 612, in this embodiment, the bag pressing tongue 63 is located at the rear side of the groove 612, so that the plastic package bag located under the bag pressing tongue 63 is a certain distance from the bag mouth, the vacuum pumping from the plastic package bag mouth is not affected, and the position of the plastic package bag for heating and plastic packaging is far away from the position of the plastic package bag mouth, so that the accurate plastic package of the plastic package bag is achieved.

The invention also provides a refrigeration device (not shown), which comprises a storage compartment and the drawer arranged in the storage compartment, wherein the drawer can move back and forth in the storage compartment.

In summary, in the hinge assembly 10 according to the present invention, the pivot connection portion 13 is located at the center of the arc-shaped arm 121 of the hinge plate 12, so that the area of the hinge plate 12 and the opening through which the hinge plate 12 passes in the rotation process of the hinge plate 12 are smaller, and the appearance of the whole hinge assembly 10 is simpler and more attractive.

It should be understood that although the present disclosure describes embodiments in terms of examples, not every embodiment is provided with a single embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and is not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims

1. A hinge assembly, characterized in that: comprising the following steps:

2. The hinge assembly of claim 1, wherein: the pivot connecting portion comprises a rotating shaft arranged on the hinge fixing seat and a shaft hole arranged at the free end of the connecting arm and matched with the rotating shaft, and the shaft hole is positioned at the circle center of the arc-shaped arm.

3. The hinge assembly of claim 1, wherein: the hinge plate is provided with an initial state that at least the arc-shaped arm is overlapped with the hinge fixing seat and a use state that the arc-shaped arm extends out of the hinge fixing seat, and in the initial state, the support arm and the connection positions of the arc-shaped arm and the connection arm are respectively positioned at two sides of the circle center of the arc-shaped arm.

4. The hinge assembly of claim 1, wherein: the total length of the arc-shaped arm and the supporting arm is larger than the length of the connecting arm, the supporting arm is provided with inner side surfaces adjacent to the pivoting connecting part, the arc-shaped arm is provided with inner side surfaces respectively close to the pivoting connecting part, and the linear distance from the inner side surfaces of the supporting arm to the pivoting connecting part is smaller than the linear distance from the inner side surfaces furthest from the linear distances from the arc-shaped arm and the pivoting connecting part to the pivoting connecting part in a use state.

5. The hinge assembly of any one of claims 1 to 4, wherein: the hinge fixing seat comprises a fixing plate and a limiting plate, wherein the fixing plate is parallel to the plane where the arc-shaped arm is located, the limiting plate is connected to one end of the fixing plate, an opening for the hinge plate to pass through is formed in the limiting plate, the pivoting connecting portion is close to the limiting plate and is arranged at a certain distance from the opening, a limiting groove is formed at the joint of the connecting arm and the arc-shaped arm, and the limiting plate is located in the limiting groove when the arc-shaped arm stretches out of the hinge fixing seat in a use state.

6. The hinge assembly of claim 5, wherein: the hinge fixing seat is characterized by further comprising a left side plate used for connecting the limiting plate and the fixing plate, wherein the left side plate is arranged in an adjacent opening, a limiting part is arranged on the inner side wall of the left side plate, and a plurality of limiting blocks matched with the limiting part are arranged on the outer side of the arc-shaped arm.

7. The hinge assembly of claim 5, wherein: the hinge matching seat comprises a matching plate parallel to the plane where the fixing plate is located, a matching part protruding from the matching plate to the accommodating cavity and matched with the pivot connecting part, and an extension plate matched with the hinge plate, wherein the shape of the extension plate is consistent with that of the hinge plate.

8. The hinge assembly of claim 7, wherein: the hinge matching seat also comprises a right side plate and a bottom plate, wherein the right side plate and the bottom plate are used for respectively connecting the fixed plate and the limiting plate, the right side plate comprises a vertical part arranged adjacent to the matching part and an inclined part below the vertical part, and the connecting arm is lapped on the inclined part in the initial state of matching the hinge assembly and the drawer; the bottom plate is located the lower extreme of tilting part, and wholly take the form of cambered surface shape to be located the below of arc arm.

9. The hinge assembly of claim 8, wherein: the fixed plate and the matching plate are fixed by bolts, a pair of screw holes are formed in opposite corner portions of the fixed plate and the matching wall, one screw hole penetrates through the pivot connecting portion and the matching portion along the length direction of the pivot connecting portion, and the other screw hole is located below one end of the bottom plate away from the inclined portion.

10. A drawer, characterized in that: the drawer comprises an upward opening drawer body, a cover body for covering the drawer body, and a hinge assembly according to any one of claims 1 to 9, wherein the hinge assembly is used for connecting the cover body and the same side of the drawer body, the drawer body is provided with a side wall, the side wall is provided with a containing cavity for containing the hinge assembly, the hinge matching seat is arranged against the inner wall of the side wall, and one end, away from the hinge fixing seat, of the supporting arm is fixed on the cover body.