Hinge and refrigeration equipment having the same

Abstract

The present invention provides a hinge and a refrigeration device having the same, wherein the hinge comprises a cabinet hinge seat and a door hinge seat rotatably connected thereto, the cabinet hinge seat is provided with a long groove extending along its longitudinal direction, the hinge further comprises a connecting piece, a movable shaft and an elastic piece, one end of the elastic piece is connected to the movable shaft and moves synchronously with the movable shaft, the other end of the elastic piece abuts against the cabinet hinge seat, the movable shaft is fitted in the long groove and can move along the long groove, the connecting piece rotatably connects the door hinge seat and the movable shaft and drives the movable shaft to move, at least one of the connecting piece and the elastic piece has an inner arc surface at one end connected to the movable shaft, the inner arc surface covers the movable shaft and abuts against the movable shaft, and the connecting piece and the elastic piece jointly abut against the movable shaft to limit the movable shaft from separating from the inner arc surface. The matching mode of the inner arc surface covering the movable shaft and abutting against the movable shaft simplifies the processing and assembly processes, and saves material and labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to a hinge and refrigeration equipment having the same. Background Art

[0002] Refrigeration equipment such as refrigerators, freezers, wine cabinets, etc. usually use hinges to connect the door body and the cabinet body to open or close the door body. The hinges are often connected to different components through shafts to achieve force transmission.

[0003] The hinges in existing refrigeration equipment are usually made by drilling holes in the components, and the shafts are passed through the holes to achieve the connection between different components. This requires strict assembly sequence. Once the assembly is wrong, all the subsequent components need to be disassembled and reassembled, which greatly affects the assembly efficiency. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a hinge and a refrigeration device having the same, so as to solve the problem that the existing hinge is inconvenient to assemble because the shaft needs to pass through the holes on different components in sequence.

[0005] To achieve one of the above-mentioned purposes of the invention, one embodiment of the present invention provides a hinge, including a cabinet hinge seat and a door hinge seat rotatably connected to the cabinet hinge seat, the cabinet hinge seat is provided with a long groove extending along its longitudinal direction, the hinge also includes a connecting piece, a movable shaft and an elastic piece, one end of the elastic piece is connected to the movable shaft and moves synchronously with the movable shaft, the other end of the elastic piece abuts the cabinet hinge seat, the movable shaft is fitted in the long groove and can move along the long groove, the connecting piece rotatably connects the door hinge seat and the movable shaft and drives the movable shaft to move, at least one of the connecting piece and the elastic piece has an inner arc surface at one end connected to the movable shaft, the inner arc surface covers the movable shaft and abuts the movable shaft, and the connecting piece and the elastic piece jointly abut the movable shaft to limit the movable shaft from separating from the inner arc surface.

[0006] As a further improvement of an embodiment of the present invention, the inner arc surface is recessed in a direction away from the movable axis, and the inner arc surface is coaxially arranged with the movable axis.

[0007] As a further improvement of an embodiment of the present invention, the central angle of the inner arc surface is 175-185°.

[0008] As a further improvement of an embodiment of the present invention, the hinge further includes a sleeve sleeved on the outer periphery of the movable shaft.

[0009] As a further improvement of an embodiment of the present invention, the connecting member includes a pair of connecting ends connected to the movable shaft, and the movable shaft includes a pair of fixing parts, and the pair of fixing parts are located between the pair of connecting ends and respectively abut against the pair of connecting ends.

[0010] As a further improvement of one embodiment of the present invention, the door hinge seat includes a pair of side edges arranged opposite to each other, the cabinet hinge seat includes a pair of side panels arranged opposite to each other, the pair of side edges are located between the pair of side panels, and the hinge also includes a swing shaft, which is connected to the pair of side edges and is located between the pair of side panels.

[0011] As a further improvement of one embodiment of the present invention, the cabinet hinge seat also includes a bottom plate connected to the pair of side plates, the pair of side plates are located on the same side of the bottom plate, and the axis of the swing shaft can swing back and forth on both sides of the plane where the bottom plate is located.

[0012] As a further improvement of one embodiment of the present invention, the cabinet hinge seat is installed on the cabinet of the refrigeration equipment, and the door hinge seat is installed on the door of the refrigeration equipment. The cabinet hinge seat includes a bottom plate attached to the cabinet, and the door hinge seat has an open position for opening the refrigeration equipment and a closed position for closing the door of the refrigeration equipment. During the process of the door hinge seat rotating from the closed position to the open position, the connecting member and the bottom plate do not interfere with each other.

[0013] As a further improvement of one embodiment of the present invention, the connecting member includes a first connecting end, a second connecting end and a main body connecting the first connecting end and the second connecting end, the first connecting end is rotatably connected to the movable shaft, the second connecting end is rotatably connected to the door body hinge seat, and the main body is recessed in a direction away from the base plate.

[0014] As a further improvement of one embodiment of the present invention, the cabinet hinge seat includes a base plate, which is parallel to the extension direction of the long groove. The hinge also includes a pivot shaft, and the door hinge seat and the cabinet hinge seat are pivotally connected via the pivot shaft. The movable shaft is parallel to the pivot shaft and the plane formed by their axes is parallel to the base plate.

[0015] As a further improvement of one embodiment of the present invention, the hinge also includes a swing shaft, the connecting member is pivotally connected to the door hinge seat via the swing shaft, the cabinet hinge seat is mounted on a cabinet of a refrigeration device, the door hinge seat is mounted on a door of the refrigeration device, the door hinge seat has a closed position for closing the door body, and when the door hinge seat is in the closed position, the axis of the swing shaft is located on a plane formed by the axis of the movable shaft and the axis of the pivot shaft.

[0016] To achieve one of the above-mentioned purposes of the invention, an embodiment of the present invention further provides a refrigeration device, comprising a cabinet body and a door body assembled on the cabinet body, and also comprising the hinge as described above, wherein the cabinet hinge seat is fixedly connected to the cabinet body, and the door hinge seat is fixedly connected to the door body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the hinge of the present invention and the refrigeration equipment having the same, cover the movable shaft and support the movable shaft through the inner arc surface, and the elastic part is always in a compressed state, and under the action of the elastic restoring force of the elastic part and external force, door weight, etc., the connecting part and the elastic part jointly support the movable shaft to limit the movable shaft from separating from the inner arc surface. The matching method of covering the movable shaft and supporting the movable shaft through the inner arc surface simplifies the processing and assembly processes, and saves material and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a refrigeration device according to an embodiment of the present invention;

[0019] Figure 2 A longitudinal sectional view of a refrigeration device according to an embodiment of the present invention;

[0020] Figure 3 for Figure 2 The enlarged schematic diagram of the middle A part;

[0021] Figure 4 The three-dimensional structure diagram of the hinge of an embodiment of the present invention illustrates the state of the door hinge seat in the closed position.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of a hinge of another embodiment of the present invention, which illustrates a state where the door hinge seat is in a door closing position;

[0023] Figure 6 for Figure 5 Right view of;

[0024] Figure 7 for Figure 6 The enlarged schematic diagram of the middle part B;

[0025] Figure 8 A schematic diagram of a partial structure of a hinge according to a modified embodiment of the present invention;

[0026] Fig. 9 for Figure 5 A three-dimensional structural diagram from another angle, which illustrates the state of the door hinge seat in the door open position;

[0027] Fig.10 for Fig. 9 Left view of

[0028] Fig.11 A schematic diagram of a three-dimensional structure of a hinge according to another embodiment of the present invention;

[0029] Fig.12 for Fig.11 The enlarged schematic diagram of the middle C part;

[0030] Fig.13 It is a schematic diagram of the three-dimensional structure of a movable shaft according to an embodiment of the present invention;

[0031] Fig.14 It is a schematic diagram of the three-dimensional structure of an elastic member according to an embodiment of the present invention;

[0032] Fig.15 This is a front view of a hinge according to another embodiment of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings.

[0034] In various drawings of the present invention, for the sake of convenience of illustration, some sizes of structures or parts are exaggerated relative to other structures or parts, and thus, only the basic structure of the subject matter of the present invention is illustrated.

[0035] It should be understood that although the terms first, second, etc. may be used in this document to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from each other.

[0036] See also Figures 1 to 3 A refrigeration device provided by an embodiment of the present invention comprises a hinge 1, a cabinet 2 and a door 3. The cabinet 2 has a refrigeration compartment for storing and refrigerating items. The door 3 is assembled to the cabinet 2 and can rotate relative to the cabinet 2 to open or close the refrigeration compartment. The refrigeration device can be specifically configured as a refrigerator, a freezer, a wine cabinet, etc., especially a large-volume or ultra-thin refrigeration device.

[0037] The hinge 1 includes a cabinet hinge seat 11 and a door hinge seat 12 rotatably connected to the cabinet hinge seat 11 through a pivot shaft 13, wherein the cabinet hinge seat 11 is fixedly connected to the cabinet 2, and the door hinge seat 12 is fixedly connected to the door 3, and the door hinge seat 12 rotates relative to the cabinet hinge seat 11 to drive the door 3 to rotate relative to the cabinet 2 to open or close the refrigeration compartment.

[0038] For ease of description, in this embodiment, the refrigeration equipment is placed horizontally on the ground as an example for description. When the door body 3 is closed, the direction from the door body 3 to the cabinet 2 is defined as the top-to-bottom direction. Correspondingly, the door hinge seat 12 is located above the cabinet hinge seat 11. The side of the hinge 1 facing the refrigeration equipment is defined as the inside, and the side of the hinge 1 away from the refrigeration equipment is defined as the outside. When the user faces the hinge 1 from the outside, the two sides of the hinge 1 are respectively defined as left and right.

[0039] The cabinet hinge seat 11 includes a bottom plate 111 against the outer wall of the cabinet 2 and a pair of side plates 112 arranged opposite to each other on the left and right sides. The pair of side plates 112 are respectively connected to the left and right ends of the bottom plate 111 and extend in the same direction. Specifically, in this embodiment, the pair of side plates 112 extend outward from the bottom plate 111 respectively.

[0040] See also Figure 4 In one embodiment, the hinge 1 further comprises an elastic member 17, one end of which is rotatably connected to the door hinge seat 12, and the other end of the elastic member 17 abuts against the cabinet hinge seat 11. By setting the elastic member 17 and controlling various parameters such as its deformation amount, the angle of rotation of the door hinge seat 12 relative to the cabinet hinge seat 11 is controlled, thereby controlling the opening angle of the door 3 relative to the cabinet 2, and the arc groove set on the solid hinge 1 seat is eliminated, thereby avoiding the hinge 1 being limited by the size and pressure bearing strength of the arc groove, thereby making the thickness of the hinge 1 thinner. In addition, the elastic restoring force of the elastic member 17 can provide an upward supporting force to the door hinge seat 12, and the tangential component of the supporting force along the swinging direction of the door hinge seat 12 can save effort in opening the door, thereby solving the problem of difficulty in opening the door due to the heavy door 3 of the refrigeration equipment.

[0041] See also Figure 5 to Figure 6 Furthermore, the cabinet hinge seat 11 has a pair of long grooves 113 arranged opposite to each other, and the pair of long grooves 113 extend along the longitudinal direction of the cabinet hinge seat 11. In this example, the pair of long grooves 113 are arranged on a pair of side panels 112 respectively and extend up and down.

[0042] The hinge 1 further comprises a swing shaft 14, a connecting member 15, a movable shaft 16 and an elastic member 17, and the swing shaft 14, the movable shaft 16 and the pivot shaft 13 are arranged parallel to each other in the left-right direction. The connecting member 15 is pivotally connected to the door hinge seat 12 through the swing shaft 14, and the movable shaft 16 is matched in a pair of long grooves 113; the upper end of the connecting member 15 is connected to the swing shaft 14, and the lower end of the connecting member 15 is connected to the movable shaft 16, so that the connecting member 15 is rotated to connect the door hinge seat 12 and the movable shaft 16, and drives the movable shaft 16 to move linearly along the length direction of the long groove 113, that is, the connecting member 15 drives the movable shaft 16 to move up and down in the long groove 113; one end of the elastic member 17 is connected to the movable shaft 16, and the elastic member 17 moves synchronously with the movable shaft 16, and the other end of the elastic member 17 abuts against the cabinet hinge seat 11. In this way, when the door hinge seat 12 rotates around the pivot shaft 13 relative to the cabinet hinge seat 11, the swing shaft 14 swings accordingly and pulls the connecting member 15 to drive the movable shaft 16 to move together, and during the movement process, under the mutual restriction of each component, the swing shaft 14, the movable shaft 16 and the pivot shaft 13 are always in a parallel state, and the door hinge seat 12, the pivot shaft 13, the swing shaft 14, the connecting member 15, the movable shaft 16, the elastic member 17 and the cabinet hinge seat 11 together constitute a crank slider mechanism, which converts the pivoting motion of the door hinge seat 12 into a linear motion of the movable shaft 16 and the elastic member 17. Compared with the arc motion of the movable shaft 16 and the elastic member 17, the movable space required for the movement of the elastic member 17 is greatly reduced, especially in the inward and outward directions, so the thickness of the hinge 1 can be made thinner.

[0043] See also Figure 6 as well as Figures 9 and 10 The long groove 113 has an extreme proximal end 1131 close to the door hinge seat 12 and an extreme distal end 1132 far away from the door hinge seat 12. In the present embodiment, the extreme proximal end 1131 is located above the extreme distal end 1132.

[0044] The door hinge seat 12 has a door closing position for closing the door 3 and a door opening position for opening the door 3. Figures 3 to 6 The door hinge seat 12 is shown in the state of the door closing position. Figures 9 and 10 The state of the door hinge seat 12 in the door opening position is shown. The door opening position here is defined as the position of the door hinge seat 12 relative to the cabinet hinge seat 11 when the door 3 is opened to a set maximum angle, and the maximum angle is usually set to an angle between the door 3 and the horizontal direction of 81° to 88°.

[0045] Furthermore, the hinge 1 further includes a limiting mechanism, and when the door hinge seat 12 is in the door opening position, the limiting mechanism limits the door hinge seat 12 from rotating outward relative to the cabinet hinge seat 11, and the limiting mechanism is provided on at least one of the door hinge seat 12, the cabinet hinge seat 11, the door 3 and the cabinet 2. The limiting mechanism can limit the maximum angle of the door hinge seat 12 rotating outward relative to the cabinet hinge seat 11, and make the door hinge seat 12 hover at the maximum angle, that is, the maximum door opening angle of the door 3 is limited, and the door 3 is hovered after opening, so that the user can store and retrieve items.

[0046] Specifically, the limiting mechanism includes a limiting portion and a stopping portion 123 , and the stopping portion 123 abuts against the limiting portion to limit the door hinge seat 12 from rotating outward relative to the cabinet hinge seat 11 .

[0047] See also Figures 4 to 7 In this embodiment, for the sake of easy distinction, the limiting portion here is represented by the first limiting portion 114, the door hinge seat 12 is provided with a stop portion 123, and the cabinet hinge seat 11 is provided with a first limiting portion 114 at one end close to the door hinge seat 12, that is, the first limiting portion 114 is arranged at the upper end of the cabinet hinge seat 11.

[0048] See also Figures 4 to 7 Furthermore, the door hinge seat 12 includes a base plate 121 and a pair of side edges 122 arranged opposite to each other, the pair of side edges 122 are respectively connected to the opposite ends of the base plate 121 and extend in the same direction, the stop portion 123 is a flange provided at one end of the side edge 122 away from the base plate 121, and the flange extends from the side edge 122 where it is located away from the other side edge 122. When the door hinge seat 12 is in the door opening position, the flange abuts against the first limiting portion 114 to limit the door hinge seat 12 from rotating outward relative to the cabinet hinge seat 11.

[0049] Specifically, in this embodiment, the base plate 121 is close to the door body 3, a pair of side edges 122 are respectively connected to the left and right ends of the base plate 121 and extend outward from the base plate 121, the pair of side edges 122 are both located between the pair of side panels 112 and correspond one-to-one to the pair of side panels 112, the axial ends of the swing shaft 14 are respectively connected to the pair of side edges 122, and the swing shaft 14 is located between the pair of side panels 112, that is, the swing shaft 14 is not connected to the pair of side panels 112. Such a setting eliminates the arc groove provided on the cabinet hinge seat 11 in the prior art, avoids the hinge 1 being limited by the size and pressure-bearing strength of the arc groove, can reduce the thickness of the hinge 1, increase the packing volume of the refrigeration equipment during storage and transportation, and reduce the occupied space during use.

[0050] Furthermore, the flange extends from the side edge 122 where the flange is located toward the side plate 112 corresponding to the side edge 122 .

[0051] Preferably, in this embodiment, the stopper 123 includes a pair of flanges, each flange is correspondingly provided on a side edge 122, the pair of flanges extend away from each other and respectively extend toward the side plate 112 corresponding to the side edge 122 where they are located, and the pair of flanges jointly bear the gravity of the door body 3, which can reduce the load-bearing capacity of each flange and extend its service life. In other embodiments, only one flange may be provided.

[0052] See also Figure 6 to Figure 7 as well as Figures 9 and 10 Further, the side edge 122 is close to one end of the door hinge seat 12, that is, the upper end has an arc surface 115, and the first limiting portion 114 is connected to the arc surface 115 and extends from the arc surface 115 along the tangent direction of the arc surface 115 away from the door hinge seat 12, that is, the first limiting portion 114 extends downward from the arc surface 115 along the tangent direction of the arc surface 115, that is, the first limiting portion 114 is arranged at one end of the side plate 112 away from the bottom plate 111; the door hinge seat When 12 is in the door closing position, the stop portion 123 is separated from the arc surface 115, and the door hinge seat 12 can rotate relative to the cabinet hinge seat 11 without hindrance. When the door hinge seat 12 rotates to the set door opening angle, that is, when the door hinge seat 12 is in the door opening position, the first limiting portion 114 abuts against the stop portion 123 to limit the door hinge seat 12 from continuing to rotate relative to the cabinet hinge seat 11, thereby limiting the door body 3 to open to the set maximum angle, at which time the door body 3 can hover.

[0053] Specifically, see Figure 7 In this embodiment, the upper end of the side plate 112 has an arc surface 115. When the door hinge seat 12 is in the door closing position, the flange is separated from the arc surface 115; when the door hinge seat 12 is in the door opening position, the flange abuts against the first limiting portion 114. In other embodiments, the first limiting portion 114 may also be a convex block protruding from the arc surface 115.

[0054] See also Figure 8 Preferably, in a variant embodiment, the thickness of the end of the flange close to the first limiting portion 114 in the inner-outer direction is greater than the thickness of the end of the flange away from the first limiting portion 114 in the inner-outer direction, which can prevent the end of the flange close to the first limiting portion 114 from being damaged as the main force-bearing part.

[0055] Furthermore, one end of the flange facing the first limiting portion 114 is arc-shaped, so as to reduce damage to the first limiting portion 114 when the first limiting portion 114 is abutted.

[0056] Specifically, one end of the flange close to the first limiting portion 114 is first bent inward and then in a direction away from the first limiting portion 114 , which can increase the strength of the flange, reduce processing difficulty, and improve processing efficiency.

[0057] In the prior art, when an external force is applied to rotate the door body 3 to the door opening position, the movable shaft 16 drives the elastic member 17 to move to the extreme proximal end 1131 of the long slot 113, and the downward force of the extreme proximal end 1131 of the long slot 113 acting on the movable shaft 16 is transmitted to the swing shaft 14 to form a downward and outward pulling force of the connecting member 15 on the swing shaft 14, and a balance is reached among the external force, the gravity of the door body 3, the friction force of the hinge 1, and the pulling force of the connecting member 15 on the swing shaft 14, the contact point between the pivot shaft 13 and the side plate 112 of the cabinet hinge seat 11 is located on the upper inner side of the pivot shaft 13, the contact point between the swing shaft 14 and the door hinge seat 12 is located on the lower outer side of the swing shaft 14, and the contact point between the swing shaft 14 and the connecting member 15 is located on the upper inner side of the swing shaft 14; at this time, the external force is removed, and due to the pivot shaft 13, the swing shaft 14 and its There is inevitably a fitting gap between the various components that are rotatably connected, especially there is a gap at the lower and outer part of the swing shaft 14 where the connecting piece 15 and the swing shaft 14 are connected. The gap provides displacement space for the swing shaft 14 to move downward and outward. Under the influence of the gravity of the door body 3, the door body 3 will drive the door hinge seat 12 to rebound. Specifically, the contact point between the pivot shaft 13 and the side plate 112 of the cabinet hinge seat 11 is transferred downward along the inner side of the pivot shaft 13, and the contact point between the swing shaft 14 and the door hinge seat 12 is transferred upward along the outer side of the swing shaft 14 until the contact point between the swing shaft 14 and the connecting piece 15 is transferred to the lower and outer part of the swing shaft 14. At this time, the swing shaft 14 resists the connecting piece 15 to stop moving, and the door hinge seat 12 stops rebounding, and the door body 3 can hover. In other words, the door body 3 cannot hover at the set maximum angle.

[0058] In order to solve the above technical problems, further, when the door hinge seat 12 rotates outward relative to the cabinet hinge seat 11 to the door opening position, the stopper 123 abuts against the first limit portion 114, and at this time, a first gap can be formed between the movable shaft 16 and the extreme proximal end 1131 of the long slot 113, and the elastic member 17 has a first compression deformation amount. In this way, when an external force is applied to rotate the door body 3 to the door opening position, due to the existence of the first gap, the elastic member 17 applies an upward thrust to the connecting member 15 under the action of its elastic restoring force, and transmits it to the swing shaft 14 to form an upward and inward thrust of the connecting member 15 on the swing shaft 14, and the contact point between the swing shaft 14 and the connecting member 15 is located on the lower side of the swing shaft 14. When the external force is removed, since the elastic member 17 has the first compression deformation amount, the elastic member 17 applies an upward thrust to the connecting member 15 under the action of its elastic restoring force. The force is transmitted to the swing shaft 14 to form a thrust of the connecting part 15 on the swing shaft 14 upward and inward, so that the contact point between the swing shaft 14 and the door hinge seat 12 is located on the upper inner side of the swing shaft 14. Even under the action of the gravity of the door body 3, there is no displacement space for the swing shaft 14 to move upward along the inner side relative to the door hinge seat 12. Therefore, the problem of the door body 3 rebounding after the external force is removed is solved, and the door body 3 is suspended in the door opening position. That is to say, when the stop portion 123 abuts against the first limiting portion 114, the door body 3 is located in the door opening position.

[0059] See also Figures 4 to 10 Furthermore, a second limiting portion 116 is provided at one end of the cabinet hinge seat 11 close to the door hinge seat 12. The second limiting portion 116 is located on the path of the door hinge seat 12 rotating inward from the door closing position relative to the cabinet hinge seat 11. The stop portion 123 can abut against the second limiting portion 116 to limit the door hinge seat 12 from rotating inward from the door closing position relative to the cabinet hinge seat 11, thereby avoiding the door hinge seat 12 rotating back and forth relative to the cabinet hinge seat 11 and causing wear or even damage to it, reducing the required loading and transportation space. At the same time, this position is relatively close to the door closing position of the door hinge seat 12. When workers assemble, they do not need to use their hands or other tools to support the door hinge seat 12 to fix it, which greatly improves the assembly efficiency.

[0060] Furthermore, when the door hinge seat 12 rotates inwardly by a preset angle from the door closing position relative to the cabinet hinge seat 11, the stop portion 123 abuts against the second limiting portion 116. At this time, there is a second gap between the movable shaft 16 and the extreme distal end 1132 of the long slot 113, and the elastic member 17 has a second compression deformation, which is greater than the first compression deformation. Under the elastic restoring force of the elastic member 17, the connecting member 15 provides an upward and inward thrust to the swing shaft 14, thereby pushing the door hinge seat 12 to continue to rotate inward, and the force applied by the second limiting portion 116 to the door hinge seat 12 prevents the door hinge seat 12 from rotating inward, and the movable shaft 16 is close to the extreme distal end 1132 of the long slot 113. The elastic member 17 has a large compression deformation, and therefore can provide a large elastic restoring force. Under the joint action of the elastic member 17 and the second limiting portion 116, the door hinge seat 12 can be maintained in this position without rotating inward or outward. The preset angle is no greater than 10°, so that the door hinge seat 12 can maintain the preset angle relative to the cabinet hinge seat 11, which is convenient for packaging, transportation and assembly, and avoids the door hinge seat 12 rotating back and forth relative to the cabinet hinge seat 11 to cause wear or even damage to the cabinet hinge seat 11, reducing the required loading and transportation space. At the same time, this position is relatively close to the door closing position of the door hinge seat 12. When assembling, workers do not need to use their hands or other tools to support the door hinge seat 12 to fix it, which greatly improves the assembly efficiency.

[0061] Specifically, in this embodiment, the second limiting portion 116 is arranged on the arc surface 115 at the upper end of the cabinet hinge seat 11, and when the door hinge seat 12 is in the closed door position, the base plate 121 and the bottom plate 111 are roughly located in the same plane; when the door hinge seat 12 rotates inwardly by a certain angle relative to the cabinet hinge seat 11 from the closed door position, the flange resists the second limiting portion 116, and the swing shaft 14 drives the connecting member 15 to swing outward.

[0062] Furthermore, the second limiting portion 116 is a protrusion provided on the upper end of the cabinet hinge seat 11 , and the protrusion is provided on the arc surface 115 .

[0063] Preferably, one end of the flange close to the side plate 112 is first folded toward the protrusion and then toward a direction away from the side plate 112, so as to improve the strength of the flange and extend its service life.

[0064] Each side panel 112 includes a first section 1121 and a second section 1122 which are arranged in sequence from bottom to top and connected to each other, the first section 1121 is connected to the bottom plate 111, the second section 1122 protrudes out of the bottom plate 111 and is rotatably connected to the door hinge seat 12, a pair of side edges 122 corresponds to a pair of side panels 112 one by one, and the second section 1122 of each side panel 112 is rotatably connected to the corresponding side edge 122.

[0065] See also Figure 11 to Figure 12 In a variation of the embodiment, the stop portion 123 may also be disposed at one end of the side edge 122 close to the substrate 121 , or the stop portion 123 may be disposed on the substrate 121 , and accordingly, the second limiting portion 116 may be disposed at one end of the second section 1122 facing the substrate 121 .

[0066] Specifically, the stopper 123 is a folded edge disposed at one end of the side edge 122 close to the base plate 121 , and the folded edge protrudes from the side edge 122 where the folded edge is located toward the side plate 112 corresponding to the side edge 122 .

[0067] The upper ends of a pair of side panels 112 of the cabinet hinge seat 11 protrude from the bottom plate 111, and the lower end of the door hinge seat 12 is connected to the upper ends of the pair of side panels 112 through a pivot shaft 13, that is, there is a certain distance between the bottom plate 111 and the base plate 121, thereby providing space for the swinging of the swing shaft 14 and the connecting member 15; when the door body 3 is in a closed state, that is, when the door hinge seat 12 is in the said closed position, the swing shaft 14 is located below the pivot shaft 13.

[0068] See also Figure 3 There is a cavity 4 between the cabinet body 2 and the door body 3, and the cavity 4 is located on the side of the plane where the bottom plate 111 is located facing the cabinet body 2. During the rotation of the door hinge seat 12 from the closed position to the open position, the swing shaft 14 swings from the side of the plane where the bottom plate 111 is located away from the cabinet body 2 toward the cabinet body 2 to the cavity 4, that is, the swing shaft 14 swings from the outside to the inside to the cavity 4, and in this process, the swing shaft 14 does not interfere with other structures of the refrigeration equipment, so that the swing of the swing shaft 14 is not affected by the cabinet hinge seat 11. The swing of the hinge 14 can be limited by the cavity 4 between the cabinet body 2 and the door body 3, so that when the door hinge seat 12 is rotated to the door opening position, the swing shaft 14 swings to the point where its axis is located on the plane where the bottom plate 111 is located, or the swing shaft 14 swings to the point where its axis is located on the side of the plane where the bottom plate 111 is located away from the side plate 112, that is, toward the side of the cabinet body 2. In other words, the swing shaft 14 can swing back and forth on both sides of the plane where the bottom plate 111 is located, thereby further reducing the thickness of the hinge 1 without affecting the strength of the hinge 1.

[0069] Furthermore, during the process of the door hinge seat 12 rotating from the door closing position to the door opening position, the connecting member 15 and the bottom plate 111 do not interfere with each other. Preferably, the connecting member 15 and the cabinet hinge seat 11 do not interfere with each other. Specifically, this can be achieved by setting the distance between the bottom plate 111 and the base plate 121, so that the swing shaft 14 can smoothly swing from the side of the plane where the bottom plate 111 is located away from the cabinet 2 to the cavity 4, so that the thickness of the hinge 1 can be further made thinner.

[0070] See also Figure 3 , Figure 5,as well as Fig. 9 Further, the connecting member 15 further includes a first connecting end 151, a second connecting end 152, and a main body 153 connecting the first connecting end 151 and the second connecting end 152, the first connecting end 151 is connected to the movable shaft 16, the second connecting end 152 is connected to the swing shaft 14, and the main body 153 is recessed in a direction away from the bottom plate 111. Preferably, the main body 153 is recessed away from the bottom plate 111 at one end facing the cabinet 2, that is, recessed in a direction away from the cabinet 2, so as to avoid interference between the connecting member 15 and the bottom plate 111, so that the swing shaft 14 can be smoothly swung into the cavity 4, and even the swing amplitude of the swing shaft 14 into the cavity 4 can be larger.

[0071] See also Figure 3 as well as Fig.10 Furthermore, the plane formed by the axis of the pivot shaft 13 and the movable shaft 16 is parallel to the bottom plate 111, which can also reduce the thickness of the hinge 1.

[0072] See also Figure 3 as well as Figure 6 Furthermore, when the door hinge seat 12 is in the closed position, the axis of the swing shaft 14 is located on the plane formed by the axis of the movable shaft 16 and the axis of the pivot shaft 13. This arrangement can not only make the thickness of the hinge 1 thinner, further increasing the packing volume during transportation of the refrigeration equipment, but also maximize the supporting effect of the elastic member 17 on the connecting member 15, thereby achieving the effect of saving effort when opening the door.

[0073] See also Figure 5 Furthermore, one end of the elastic member 17 connected to the movable shaft 16 is located between a pair of first connecting ends 151, which limits the range of axial movement of the connecting member 15 along the movable shaft 16, and the pair of first connecting ends 151 can share the force, so that the movable shaft 16 drives the elastic member 17 to move smoothly.

[0074] See also Figure 5 Furthermore, the movable shaft 16 includes a pair of fixing portions 161 spaced apart along its axial direction, and the elastic member 17 is clamped between the pair of fixing portions 161 .

[0075] Preferably, the pair of fixing portions 161 respectively abut against the elastic member 17 to limit the axial movement of the elastic member 17 along the movable shaft 16 .

[0076] Preferably, a pair of fixing portions 161 are both located between a pair of connecting ends and respectively abut against a pair of first connecting ends 151 to limit the axial movement of the connecting member 15 along the movable shaft 16. That is to say, a pair of first connecting ends 151 are respectively located on the left and right sides of a pair of fixing portions 161, and the elastic member 17 is located between the pair of fixing portions 161. In the present embodiment, a pair of fixing portions 161 are respectively located on the left and right sides of the elastic member 17, and one of the first connecting ends 151 is located on the left side of the left fixing portion 161 and abuts against the left fixing portion 161, and the other first connecting end 151 is located on the right side of the right fixing portion 161 and abuts against the right fixing portion 161. In this way, the connecting member 15 can be limited to be fixed relative to the movable shaft 16 and will not move left and right along the movable shaft 16, so that the force is more stable.

[0077] See also Fig.13 Specifically, the movable shaft 16 includes a main body 162 , and the fixing portion 161 is disposed on the outside of the main body 162 and is integrally provided with the main body 162 , which is beneficial to improving the connection strength of the fixing portion 161 .

[0078] Preferably, the fixing portion 161 is cylindrical and is coaxially disposed with the body 162 .

[0079] See also Figure 5 Furthermore, the first connecting end 151 has an inner arc surface, and the inner arc surface covers the movable shaft 16 and resists the movable shaft 16. Since the elastic member 17 is always in a compressed state and always has compressive elastic deformation, under the action of the elastic restoring force of the elastic member 17 and external force, the gravity of the door body 3, etc., the connecting member 15 and the elastic member 17 jointly resist the movable shaft 16 to limit the movable shaft 16 from separating from the inner arc surface. By means of the inner arc surface of the first connecting end 151 covering the movable shaft 16 and resisting the movable shaft 16, it is possible to ensure that the connecting member 15 is always rotatably coupled with the movable shaft 16, thereby simplifying the processing procedure and the assembly procedure of the connecting member 15 and the movable shaft 16, and saving material and labor costs.

[0080] See also Figure 5 and Fig.14 Similarly, an inner arc surface 1731 may also be provided at one end of the elastic member 17 connected to the movable shaft 16. By means of the inner arc surface 1731 covering the movable shaft 16 and supporting the movable shaft 16, the elastic restoring force of the elastic member 17 can ensure that the elastic member 17 is always rotationally connected with the movable shaft 16, thereby simplifying the processing and assembly processes and saving material and labor costs.

[0081] Specifically, the inner arc surface is recessed in a direction away from the movable shaft 16 , and the inner arc surface is coaxially arranged with the movable shaft 16 .

[0082] Preferably, the central angle of the inner arc surface is 175-185°, which can facilitate the assembly of the inner arc surface and the movable shaft 16, simplify the assembly process, save material and labor costs, and prevent the movable shaft 16 from escaping from the inner arc surface and causing assembly failure.

[0083] In this embodiment, one elastic member 17 is provided; in other embodiments, different numbers of elastic members 17 may be provided according to actual needs, for example Fig.15 As shown, a pair of elastic members 17 are arranged at intervals, and the pair of elastic members 17 are respectively arranged on the left and right sides of the connecting member 15. The pair of elastic members 17 can share the force, so that the size of the elastic member 17 can be reduced. If the elastic member 17 includes a spring 172, the outer diameter and wire diameter of the spring 172 can be reduced, so that the thickness of the hinge 1 can be further reduced.

[0084] See also Figure 5 Furthermore, in this embodiment, the elastic member 17 includes a support rod 171 connected to the movable shaft 16 and a spring 172 sleeved on the outer circumference of the support rod 171. One end of the support rod 171 away from the movable shaft 16 is inserted into the cabinet hinge seat 11 and is loosely connected to the cabinet hinge seat 11. That is to say, the support rod 171 can move up and down relative to the cabinet hinge seat 11. The support rod 171 is provided with a flange 1711, one end of the spring 172 abuts against the flange 1711, and the other end of the spring 172 abuts against the cabinet hinge seat 11.

[0085] See also Figure 5 Furthermore, in this embodiment, the hinge 1 also includes a sleeve 18 sleeved on the outer periphery of the movable shaft 16. The sleeve 18 is arranged between the connecting member 15 and the long groove 113. On the one hand, it further limits the left and right movement of the connecting member 15 relative to the movable shaft 16. On the other hand, lubricating oil can be added to the sleeve 18. The lubricating oil can slowly seep out from the sleeve 18 to the part of the movable shaft 16 located in the long groove 113, so that the hinge 1 can rotate smoothly.

[0086] See also Figure 5 Furthermore, the cabinet hinge seat 11 includes an end block 117, and the end block 117 has a slot. The end of the elastic member 17 away from the movable shaft 16 is inserted into the slot, thereby limiting the elastic member 17 to move only parallel to the bottom plate 111, that is, up and down movement, and avoiding increasing the thickness of the hinge 1; in this embodiment, the lower end of the spring 172 abuts against the end block 117, and the lower end of the support rod 171 of the elastic member 17 is inserted into the slot. The inner diameter of the slot is larger than the outer diameter of the support rod 171, that is, the support rod 171 is loosely connected with the end block 117, and when the elastic member 17 moves up and down synchronously with the movable shaft 16, the lower end of the support rod 171 always protrudes out of the end block 117, which can prevent the elastic member 17 from escaping from the end block 117 and causing the elastic member 17 to fail.

[0087] See also Figure 5 In one embodiment, the end stop 117 is a U-shaped plate, and the cabinet hinge seat 11 also includes a pair of protrusions 118, which are respectively provided on a pair of side panels 112 and protrude toward each other. The opening of the U-shaped plate faces the pair of protrusions 118, and the pair of protrusions 118 are both clamped in the opening of the U-shaped plate. The combined action of the spring 172 and the protrusion 118 limits the movement of the U-shaped plate relative to the side panels 112, especially limits the up and down movement of the U-shaped plate.

[0088] See also Figure 4 and Fig.15 In another embodiment, the end stop 117 is a baffle embedded in a pair of side plates 112, and the baffle is perpendicular to the side plates 112, and the movement of the baffle relative to the side plates 112 is limited by the side plates 112, especially the up and down movement of the baffle is limited.

[0089] Compared with the prior art, the hinge 1 provided by the present invention and the refrigeration equipment having the same have the beneficial effect that when the door hinge seat 12 rotates around the pivot shaft 13 relative to the cabinet hinge seat 11, the swing shaft 14 swings accordingly and pulls the connecting member 15 to drive the movable shaft 16 to move together, and during the movement, under the mutual restriction of various components, the swing shaft 14, the movable shaft 16 and the pivot shaft 13 are always in a parallel state, and the door hinge seat 12, the pivot shaft 13, the swing shaft 14, the connecting member 15, the movable shaft 16, the elastic member 17 and the cabinet hinge seat 11 together constitute a crank slider mechanism, which converts the pivoting motion of the door hinge seat 12 into the linear motion of the movable shaft 16 and the elastic member 17. 16 and the elastic member 17 make an arc movement, which greatly reduces the activity space required for the movement of the elastic member 17, especially in the inward and outward directions, so the thickness of the hinge 1 can be made thinner; when an external force is applied to rotate the door body 3 to the door opening position, due to the existence of the first gap, the elastic member 17 applies an upward thrust to the connecting member 15 under the action of its elastic restoring force, which is transmitted to the swing shaft 14 to form an upward inward thrust of the connecting member 15 on the swing shaft 14, and the contact point between the swing shaft 14 and the connecting member 15 is located on the outside of the lower side of the swing shaft 14; the maximum outward rotation angle of the door body hinge seat 12 relative to the cabinet body hinge seat 11 can be limited by the limiting mechanism, and the door body hinge seat 12 can be suspended at the maximum angle; this Similarly, when the external force is removed, due to the first compression deformation of the elastic member 17, under the action of its elastic restoring force, the elastic member 17 applies an upward thrust to the connecting member 15, which is transmitted to the swing shaft 14 to form an upward thrust of the connecting member 15 on the swing shaft 14, so that the contact point between the swing shaft 14 and the door hinge seat 12 is located at the upper inner side of the swing shaft 14. Even under the action of the gravity of the door body 3, there is no displacement space for the swing shaft 14 to move upward along the inner side relative to the door hinge seat 12. Therefore, the problem of the door body 3 rebounding after the external force is removed is solved, so that the door body 3 is suspended in the door opening position, that is, when the stopper 123 abuts against the first limiting portion 114, the door body 3 is located in the door opening position; the movable shaft 16 It includes a pair of fixing parts 161 spaced apart along the axial direction thereof, and the elastic member 17 is clamped between the pair of fixing parts 161, which can limit the axial movement of the elastic member 17 along the movable shaft 16, and is easy to install; when the door hinge seat 12 rotates inwardly by a preset angle relative to the cabinet hinge seat 11 from the door closing position, the stopper 123 abuts against the second limiting part 116, thereby preventing the door hinge seat 12 from rotating back and forth relative to the cabinet hinge seat 11 and causing wear or even damage to the door hinge seat 12, reducing the required loading and transportation space, and at the same time, this position is relatively close to the door closing position of the door hinge seat 12, so that the worker can fix the door hinge seat 12 without using hands or other tools to support it during assembly, thereby greatly improving the assembly efficiency;At least one of the ends of the connecting member 15 and the elastic member 17 connected to the movable shaft 16 has an inner arc surface, and the inner arc surface covers the movable shaft 16 and abuts against the movable shaft 16. This matching mode can ensure that the connecting member 15 is always rotatably matched with the movable shaft 16, simplifying the processing process and the assembly process of the connecting member 15 and the movable shaft 16, saving material and labor costs. ;

[0090] In the description of the present invention, it should be understood that the words "up", "down", "inside", "outside", "left", "right", etc. indicating directions or positional relationships in the present invention are all with reference to the directions defined in the text, and these words indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0091] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0092] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hinge, comprising a cabinet hinge seat and a door hinge seat rotatably connected to the cabinet hinge seat, It is characterized in that The cabinet hinge seat is provided with a long groove extending along its longitudinal direction, and the hinge also includes a connecting piece, a swing shaft, a movable shaft, an elastic piece and a limiting mechanism, one end of the elastic piece is connected to the movable shaft and moves synchronously with the movable shaft, the other end of the elastic piece abuts against the cabinet hinge seat, the movable shaft is fitted in the long groove and can move along the long groove, the connecting piece is rotatably connected to the door hinge seat and the movable shaft and drives the movable shaft to move, the connecting piece is pivotally connected to the door hinge seat through the swing shaft, and at least one of the connecting piece and the elastic piece is connected to the movable shaft One end of the shaft connection has an inner arc surface, the inner arc surface covers the movable shaft and resists the movable shaft, and the connecting member and the elastic member jointly resist the movable shaft to limit the movable shaft from separating from the inner arc surface; the long groove has an extreme proximal end close to the door hinge seat, and the door hinge seat has an opening position for opening the door body, and when the door hinge seat is in the opening position, the limiting mechanism limits the door hinge seat from rotating outward relative to the cabinet hinge seat, and there is a first gap between the movable shaft and the extreme proximal end of the long groove, and the elastic member has a first compression deformation amount.

2. The hinge according to claim 1, It is characterized in that The inner arc surface is recessed in a direction away from the movable axis, and the inner arc surface is coaxially arranged with the movable axis.

3. The hinge according to claim 2, It is characterized in that The central angle of the inner arc surface is 175-185°.

4. The hinge according to claim 1, It is characterized in that It also includes a shaft sleeve which is sleeved on the outer periphery of the movable shaft.

5. The hinge according to claim 1, It is characterized in that The connecting member includes a pair of connecting ends connected to the movable shaft, and the movable shaft includes a pair of fixing portions, wherein the pair of fixing portions are located between the pair of connecting ends and respectively abut against the pair of connecting ends.

6. The hinge according to claim 1, It is characterized in that The door hinge seat includes a pair of side edges arranged opposite to each other, the cabinet hinge seat includes a pair of side plates arranged opposite to each other, the pair of side edges are located between the pair of side plates, and the swing shaft is connected to the pair of side edges and is located between the pair of side plates.

7. The hinge according to claim 6, It is characterized in that The cabinet hinge seat also includes a bottom plate connected to the pair of side plates, the pair of side plates are located on the same side of the bottom plate, and the axis of the swing shaft can swing back and forth on both sides of the plane where the bottom plate is located.

8. The hinge according to claim 1, It is characterized in that The cabinet hinge seat is mounted on the cabinet of the refrigeration equipment, and the door hinge seat is mounted on the door of the refrigeration equipment. The cabinet hinge seat includes a bottom plate abutting against the cabinet. The door hinge seat has an open position for opening the refrigeration equipment and a closed position for closing the door of the refrigeration equipment. During the process of the door hinge seat rotating from the closed position to the open position, the connecting member and the bottom plate do not interfere with each other.

9. The hinge according to claim 8, It is characterized in that The connecting member includes a first connecting end, a second connecting end and a main body connecting the first connecting end and the second connecting end, the first connecting end is rotationally connected to the movable shaft, the second connecting end is rotationally connected to the door body hinge seat, and the main body is recessed in a direction away from the base plate.

10. The hinge according to claim 1, It is characterized in that The cabinet hinge seat includes a bottom plate, which is parallel to the extension direction of the long groove. The hinge also includes a pivot shaft, and the door hinge seat is pivotally connected to the cabinet hinge seat through the pivot shaft. The movable shaft is parallel to the pivot shaft and the plane formed by the axes of the two is parallel to the bottom plate.

11. The hinge according to claim 10, It is characterized in that The cabinet hinge seat is mounted on the cabinet of the refrigeration equipment, and the door hinge seat is mounted on the door of the refrigeration equipment. The door hinge seat has a closed position for closing the door body. When the door hinge seat is in the closed position, the axis of the swing shaft is located on the plane formed by the axis of the movable shaft and the axis of the pivot shaft.

12. A refrigeration device, comprising a cabinet and a door assembled on the cabinet, It is characterized in that It also includes the hinge according to any one of claims 1 to 11, wherein the cabinet hinge seat is mounted on the cabinet, and the door hinge seat is mounted on the door.

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