Hinge device and refrigeration appliance

Abstract

This application provides a hinge device and a refrigeration device. The hinge device includes two hinge seats, a connecting rod assembly, and an adjusting assembly. The connecting rod assembly is connected between the two hinge seats. The adjusting assembly includes: an adjusting plate, which is fixed to a door and is located on the side of the hinge seat fixed to the door facing the door; or, the adjusting plate is fixed to a cabinet and is located on the side of the hinge seat fixed to the cabinet facing the cabinet; a first adjusting member rotatably connected to the corresponding hinge seat and a second adjusting member disposed on the adjusting plate. One of the first adjusting member and the second adjusting member has a spiral protrusion, and the other has at least two limiting protrusions spaced apart along the width direction of the spiral protrusion. Adjacent two limiting protrusions form a limiting groove. The preset direction is parallel to the plane of the spiral protrusion; a guiding structure; capable of wide-range adjustment and real-time self-locking.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and more particularly to a hinge device and a refrigeration device having the hinge device. Background Technology

[0002] With the development of built-in refrigerators, users are increasingly valuing the embedding effect and aesthetics of these refrigerators. Therefore, to ensure uniform gaps after the refrigerator is embedded in the cabinet, the hinge mechanism is generally required to have an adjustment function, allowing adjustment of the door's position relative to the cabinet. Existing hinge mechanisms typically use an eccentric wheel structure for adjustment. However, the limited thickness of existing hinges restricts the size of the eccentric wheel, and the adjustment range is also limited by the eccentricity of the wheel. Furthermore, the eccentric wheel structure cannot achieve a self-locking function after adjustment, and may shift due to door weight or subsequent vibrations, resulting in unstable adjustment. Utility Model Content

[0003] This application provides a hinge device and a refrigeration device having the hinge device.

[0004] To achieve the above objectives, the technical solution provided in this application is as follows: A hinge device includes two hinge seats, a connecting rod assembly, and an adjusting assembly. The two hinge seats are respectively connected to a housing and a door. The connecting rod assembly is connected between the two hinge seats. The adjusting assembly is used to adjust the position of the door relative to the housing in a preset direction. The adjusting assembly includes: An adjusting plate, wherein the adjusting plate is fixed to the door body and the adjusting plate is located on the side of the hinge seat used to fix it to the door body facing the door body; or, the adjusting plate is fixed to the box body and the adjusting plate is located on the side of the hinge seat used to fix it to the box body facing the box body. A first adjusting member is rotatably connected to the corresponding hinge seat, and a second adjusting member is disposed on the adjusting plate. One of the first adjusting member and the second adjusting member is provided with a spiral protrusion, and the other is provided with at least two limiting protrusions spaced apart along the width direction of the spiral protrusion. Adjacent two limiting protrusions form a limiting groove for limiting the spiral protrusion. The preset direction is parallel to the plane where the spiral protrusion is located. The rotation axis of the first adjusting member is perpendicular to the plane where the spiral protrusion is located. The first adjusting member has an operating end exposed toward the space where the connecting rod assembly is located. The guiding structure includes a guide post disposed on one of the adjusting plate and the hinge seat, and a guide groove on the other, wherein the extending direction of the guide groove is the preset direction.

[0005] As a further improvement of this application, the guide groove is disposed on the hinge seat, the adjusting plate is provided with a threaded hole corresponding to the guide groove, the guide post is a bolt that passes through the guide groove and is threaded to the threaded hole, and the outer diameter of the head of the bolt is larger than the groove width of the guide groove.

[0006] To achieve the above objectives, this application also provides a hinge device, including two hinge seats, a connecting rod assembly, and an adjusting assembly. The two hinge seats are respectively connected to a housing and a door. The connecting rod assembly is connected between the two hinge seats. The adjusting assembly is used to adjust the position of the door relative to the housing in a preset direction. The adjusting assembly includes: An adjusting plate, wherein the adjusting plate is fixed to the door body and the adjusting plate is located on the side of the hinge seat used to fix to the door body facing the link assembly; or, the adjusting plate is fixed to the box body and the adjusting plate is located on the side of the hinge seat used to fix to the box body facing the link assembly. A first adjusting member is rotatably connected to an adjusting plate, and a second adjusting member is disposed on a hinge seat corresponding to the adjusting plate. One of the first adjusting member and the second adjusting member is provided with a spiral protrusion, and the other is provided with at least two limiting protrusions spaced apart along the width direction of the spiral protrusion. Adjacent two limiting protrusions form a limiting groove for limiting the spiral protrusion. The preset direction is parallel to the plane where the spiral protrusion is located. The rotation axis of the first adjusting member is perpendicular to the plane where the spiral protrusion is located. The first adjusting member has an operating end exposed toward the space where the connecting rod assembly is located. The guiding structure includes a guide post disposed on one of the adjusting plate and the hinge seat, and a guide groove on the other, wherein the extending direction of the guide groove is the preset direction.

[0007] As a further improvement of this application, the guide groove is disposed on the hinge seat, the guide post is a column integrally formed with the adjustment plate, and the guide post has a fastening hole.

[0008] As a further improvement of this application, the preset direction is the width direction of the door body; or, the preset direction is the height direction of the door body; or, the preset direction is the thickness direction of the door body.

[0009] As a further improvement of this application, the rotation center of the spiral protrusion is on the rotation axis of the first adjusting member.

[0010] As a further improvement of this application, the spiral protrusion has a starting end near its rotation center and an ending end away from its rotation center; the hinge seat or adjusting plate on which the limiting protrusion is provided is provided with a stop protrusion that limits the rotation range of the spiral protrusion. When the spiral protrusion rotates along the winding direction of the spiral protrusion, the stop protrusion (46) is located on the movement path of the terminal; or, when the spiral protrusion rotates in the opposite direction to the winding direction of the spiral protrusion, the stop protrusion is located on the movement path of the starting end.

[0011] As a further improvement of this application, the operating end has a polygonal groove.

[0012] As a further improvement of this application, the hinge seat or adjusting plate of the first adjusting member is provided with a through hole, the center of the hole being located on the rotation axis of the first adjusting member, and the first adjusting member being rotatably installed in the hole. The circular hole includes a first circular hole and a second circular hole located at the end of the first circular hole away from the second adjusting member. The diameter of the first circular hole is larger than the diameter of the second circular hole, and the shape of the first adjusting member is adapted to the shape of the circular hole.

[0013] As a further improvement of this application, the two hinge seats include a fixed hinge seat for connecting to the box body and a movable hinge seat for connecting to the door body; the adjustment assembly includes a first adjustment assembly acting between the movable hinge seat and the door body and a second adjustment assembly acting between the fixed hinge seat and the box body, wherein the extension direction of the guide groove in the first adjustment assembly is different from the extension direction of the guide groove in the second adjustment assembly.

[0014] To achieve the above-mentioned purpose, this application also provides a refrigeration device, including a housing, a door, and the aforementioned hinge device connecting the door to the housing.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The hinge device in this application adjusts the position of the door relative to the box body by setting a spiral protrusion adjustment mechanism instead of the existing eccentric wheel adjustment mechanism. On the one hand, the spiral protrusion is a radially gradually changing protrusion, and the space occupied by the adjustment stroke is much smaller than that of the eccentric wheel adjustment mechanism, which can achieve a wide range of adjustment and stepless continuous adjustment with high adjustment accuracy. On the other hand, the spiral protrusion and the limiting protrusion can be self-locked by inclined friction, that is, real-time self-locking can be achieved to prevent loosening under the weight of the door or vibration, and the adjustment effect is stable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the refrigeration device in the first embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the hinge mechanism in the diagram; Figure 3 yes Figure 2Partial exploded view; Figure 4 yes Figure 2 A disassembled structural diagram of the adjusting plate and movable hinge seat; Figure 5 yes Figure 4 Another structural diagram; Figure 6 yes Figure 2 The hinge device in the figure is a front view from the side where the movable hinge seat is located, wherein the front view is a perspective view; Figure 7 yes Figure 6 Enlarged view of point A in the middle; Figure 8 yes Figure 2 Exploded view of the movable hinge seat and the first adjusting member in the middle; Figure 9 yes Figure 8 A structural diagram from another angle; Figure 10 This is a partially exploded view of the hinge device in the second embodiment of this application; Figure 11 This is a schematic diagram of the hinge device in the third embodiment of this application; Figure 12 yes Figure 11 Exploded view of the fixed hinge seat and adjusting plate in the middle; Figure 13 yes Figure 12 A structural diagram from another angle; Figure 14 This is a schematic diagram of the hinge device in the fourth embodiment of this application; The components are as follows: 100, refrigeration equipment; 20, cabinet; 30, door; 10, hinge device; 1, fixed hinge seat; 2, movable hinge seat; 21, round hole; 211, first round hole; 212, second round hole; 3, connecting rod assembly; 31, first connecting rod; 32, second connecting rod; 33, third connecting rod; 34, fourth connecting rod; 4, adjusting assembly; 41, adjusting plate; 411, threaded hole; 412, through hole; 42 421. First adjusting component; 421a. Helical protrusion; 421b. Terminal; 422. Operating end; 4221. Polygonal groove; 43. Limiting protrusion; 431. Limiting groove; 44. Guide post; 441. Fastening hole; 45. Guide groove; 46. Stop protrusion; F1: Width direction; F2: Height direction; F3: Thickness direction; 4a. First adjusting component; 4b. Second adjusting component. Detailed Implementation

[0017] The following will be combined with the appendix Figure 1-14The specific embodiments shown herein provide a detailed description of this application. However, these embodiments do not limit this application, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of this application.

[0018] The terms "first," "second," "third," "fourth," etc., used in this application are only used to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. Additionally, it should be noted that unless otherwise expressly specified and limited, the terms "set," "connected," and "fixed" should be interpreted broadly. For example, a connection can be a direct connection or an indirect connection through an intermediate medium; it can be a fixed connection, a movable connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] It should be noted that, unless otherwise specified, the specific embodiments and features disclosed in this application can be combined with each other.

[0020] Combination Figures 1-14 As shown, this application provides a hinge device 10 and a refrigeration device 100 having the hinge device 10. The refrigeration device 100 includes a housing 20 with an opening, a door 30 for opening or closing the opening, and the hinge device 10 connecting the housing 20 and the door 30. The door 30 has a pivot end and an open end, and the hinge device 10 is used to movably connect the pivot end to the housing 20, so that the door 30 can switch between a closed state (closing the opening) and an open state (opening the opening).

[0021] Specifically, the hinge device 10 is provided at both opposite ends of the pivot end. In this embodiment, the refrigeration device 100 is a vertical refrigerator, meaning that either the left or right end of the door 30 can serve as the pivot end, and the other end as the opening end. In this case, the hinge device 10 is provided at the upper and lower ends of the pivot end of the door 30. The hinge device 10 includes two hinge seats, a connecting rod assembly 3, and an adjustment assembly 4.

[0022] The two hinge seats are respectively connected to the housing 20 and the door 30, and the linkage assembly 3 is connected between the two hinge seats. Specifically, the two hinge seats include a fixed hinge seat 1 for connecting to the housing 20 and a movable hinge seat 2 for fixing to the door 30. The linkage assembly 3 is connected between the fixed hinge seat 1 and the movable hinge seat 2 to drive the movable hinge seat 2 to rotate while translating along a preset trajectory, that is, to drive the door 30 to rotate while translating along a preset trajectory, so as to avoid interference between the door 30 and external environmental components and to make the door 30 have a large opening degree, making it convenient for users to take out and put in items.

[0023] Combination Figure 3 As shown, in one specific embodiment, the linkage assembly 3 includes a first link 31 and a second link 32 hinged to one of the two hinge seats, and a third link 33 and a fourth link 34 hinged to the other. The first link 31, the second link 32, the third link 33, and the fourth link 34 are hinged together through three hinge points. That is, the first link 31, the second link 32, the third link 33, the fourth link 34, and the two hinge seats together form a six-link structure. The hinge device 10 is a six-link hinge, which can provide more stable and smoother door body 30 trajectory movement, avoid interference between the door body 30 and external environmental components, and the six-link hinge has a strong load-bearing capacity and saves space. Of course, this is not a limitation; in other embodiments, the linkage assembly 3 can also be other linkage structures, etc.

[0024] In a preferred embodiment, the hinge device 10 has a first end corresponding to the pivot end. The fixed hinge member includes a first hinge point and a second hinge point, the second hinge point being closer to the first end than the first hinge point, and the first hinge point being closer to the housing 20 than the second hinge point. The movable hinge member includes a third hinge point and a fourth hinge point, the third hinge point being closer to the first end than the fourth hinge point. One end of the first connecting rod 31 is hinged to the first hinge point, and the first connecting rod 31 has a fifth hinge point located at an end away from the first hinge point and a sixth hinge point located between the first hinge point and the fifth hinge point. One end of the second connecting rod 32 is hinged to the second hinge point. One end of the third connecting rod 33 is hinged to the fourth hinge point, and the other end of the third connecting rod 33 is hinged to the fifth hinge point. One end of the fourth connecting rod 34 is hinged to the third hinge point, and the other end is hinged to the sixth hinge point. The fourth link 34 has a seventh hinge point located between the third hinge point and the sixth hinge point, and the end of the second link 32 away from the second hinge point is hinged to the seventh hinge point.

[0025] The adjustment component 4 is used to adjust the position of the door 30 relative to the housing 20 in a preset direction to ensure the sealing of the door 30, compensate for assembly tolerances, and adjust the gap between the door 30 and the external environmental components to ensure that the gap between the door 30 and the external environmental components is uniform, thereby improving the installation effect of the refrigeration equipment 100.

[0026] Specifically, in combination Figure 1 As shown, the aforementioned preset directions include, but are not limited to, horizontal directions parallel to the plane of the door 30 (left-right direction, width direction F1 of the door 30), vertical directions of the plane of the door 30 (up-down direction, height direction F2 of the door 30), and horizontal directions perpendicular to the plane of the door 30 (front-back direction, thickness direction F3 of the door 30). It is understood that the preset directions can also be oblique directions to the plane of the door 30, such as upper right, lower right, etc.

[0027] In this application, the adjusting component 4 can be configured to directly adjust the position of the door body 30 relative to the movable hinge seat 2 in a preset direction to adjust the position of the door body 30 relative to the housing 20 in a preset direction. In this case, the adjusting component 4 acts between the movable hinge seat 2 and the door body 30, and a portion of the structure of the adjusting component 4 is disposed on the door body 30. Alternatively, the adjusting component 4 can be configured to adjust the position of the fixed hinge seat 1 relative to the housing 20 in a preset direction to adjust the position of the door body 30 relative to the housing 20 in a preset direction. In this case, the adjusting component 4 acts between the fixed hinge seat 1 and the housing 20, and a portion of the structure of the adjusting component 4 is disposed on the housing 20.

[0028] Combination Figures 2-9 As shown, this is the first embodiment of the present application. In this embodiment, the adjusting component 4 acts between the movable hinge seat 2 and the door body 30. Below, the structure of the adjusting component 4 and its connection structure / method with the movable hinge seat 2 will be specifically described using the example of the adjusting component 4 acting between the movable hinge seat 2 and the door body 30 in the first embodiment of the present application. It can be understood that a similar structure of the adjusting component 4 and its connection structure / method with the hinge seat are also applicable to the embodiment where the adjusting component 4 acts between the fixed hinge seat 1 and the housing 20.

[0029] The adjustment assembly 4 includes an adjustment plate 41, an adjustment element disposed between the adjustment plate 41 and the corresponding hinge seat, and a guide structure. It is understood that when the adjustment assembly 4 acts between the door body 30 and the movable hinge seat, the aforementioned corresponding hinge seat refers to the movable hinge seat; when the adjustment assembly 4 acts between the housing 20 and the fixed hinge seat, the aforementioned corresponding hinge seat refers to the fixed hinge seat.

[0030] The adjusting plate 41 is fixed to the door body 30 or the housing 20 to which the adjusting component 4 is to be installed, and the adjusting plate 41 is movably connected to the corresponding hinge seat through the guide structure. In the embodiment where the adjusting component 4 acts between the movable hinge seat 2 and the door body 30, the adjusting plate 41 is fixed to the door body 30, that is, the relative position of the adjusting plate 41 and the door body 30 remains unchanged. The adjusting plate 41 is movably connected to the movable hinge seat 2, and the relative position of the adjusting plate 41 and the movable hinge seat 2 in the preset direction is adjusted by adjusting the adjusting member, thereby adjusting the position of the door body 30 relative to the housing 20 in the preset direction. In the embodiment where the adjusting component 4 acts between the fixed hinge seat 1 and the housing 20, the adjusting plate 41 is fixed to the housing 20, and the adjusting plate 41 is movably connected to the fixed hinge seat 1 through the guide structure. That is, the relative position of the adjusting plate 41 and the box 20 remains unchanged. The adjusting plate 41 is movably connected to the fixed hinge seat 1. The relative position of the adjusting plate 41 and the fixed hinge seat 1 in the preset direction is adjusted by the adjusting component, thereby adjusting the position of the door 30 relative to the box 20 in the preset direction.

[0031] The adjusting components include a first adjusting component 42 rotatably connected to one of the hinge seat and the adjusting plate 41, and a second adjusting component disposed on the other. One of the first adjusting component 42 and the second adjusting component has a helical protrusion 421, and the other has at least two limiting protrusions 43 spaced apart along the width direction of the helical protrusion 421. Adjacent limiting protrusions 43 form a limiting groove 431 that limits the helical protrusion 421 along its width direction. The preset direction is parallel to the plane containing the helical protrusion 421, and the rotation axis of the first adjusting component 42 is perpendicular to the plane containing the helical protrusion 421. The guiding structure includes a guide post 44 disposed on one of the adjusting plate 41 and the hinge seat, and a guide groove 45 disposed on the other. The extending direction of the guide groove 45 is the preset direction. When the first adjusting member 42 is rotated, the spiral protrusion 421 moves along the limiting groove 431. Since each point on the spiral protrusion 421 is at a different distance from the rotation center of the spiral protrusion 421, and with the guidance of the guiding structure in the preset direction, the hinge seat and the adjusting plate 41 can be driven to move relative to each other only in the preset direction, so as to adjust the position of the door 30 relative to the box 20 in the preset direction.

[0032] The second adjusting member can be understood as the hinge seat or the adjusting plate 41 on which the limiting protrusion 43 is set.

[0033] It is understood that the spiral protrusion 421 in this application has a spiral structure similar to that of a disc-shaped mosquito coil, such as an Archimedean spiral. The first adjusting member 42 or the second adjusting member on which the spiral protrusion 421 is provided has an end plane on which the spiral is provided. The plane on which the spiral protrusion 421 is located refers to the end plane.

[0034] The hinge device 10 in this application adjusts the position of the door 30 relative to the housing 20 by using a spiral protrusion adjustment mechanism instead of the existing eccentric wheel adjustment mechanism. On the one hand, the spiral protrusion 421 is a radially gradually changing protrusion, and the space occupied by the adjustment stroke is much smaller than that of the eccentric wheel adjustment mechanism, which can achieve a wide range of adjustment and stepless continuous adjustment with high adjustment accuracy. On the other hand, the spiral protrusion 421 and the limiting protrusion 43 can be self-locked by inclined friction, which can achieve real-time self-locking and prevent loosening under the weight of the door 30 or vibration, so that the adjustment effect is stable.

[0035] Combination Figure 4 As shown, in the first embodiment of this application, the refrigeration device 100 is a vertical refrigerator, and the preset direction is the height direction of the door 30, that is, the extension direction of the guide groove 45 is the height direction of the door 30. The hinge device 10 in the first embodiment of this application is used to adjust the position of the door 30 relative to the cabinet 20 in the height direction of the door 30. Of course, this is not a limitation; other methods can be combined with... Figure 10 As shown, in the second embodiment of this application, the preset direction is the width direction of the door body 30, that is, the extension direction of the guide groove 45 is the width direction of the door body 30. The hinge device 10 in the second embodiment of this application is used to adjust the position of the door body 30 relative to the box body 20 in the width direction of the door body 30. Of course, it is understood that the preset direction / extension direction of the guide groove 45 is not limited to this, and the extension direction of the guide groove 45 can be adaptively adjusted according to the required preset direction.

[0036] In a preferred embodiment, the rotation center of the helical protrusion 421 is on the rotation axis of the first adjusting member 42. The rotation center of the helical protrusion 421 refers to the pole (origin) of the polar coordinate system of the helix corresponding to the helix 421. This ensures that the rate of change of the polar diameter of the helical protrusion 421 strictly corresponds to the displacement of the door body 30, enabling linear proportional adjustment of the door body 30's position, controllable adjustment of the door body 30's position, and avoiding additional oscillations caused by the offset of the rotation center, thus improving the accuracy of the door body 30's position adjustment.

[0037] Specifically, the number of limiting protrusions 43 spaced apart along the width direction of the spiral protrusion 421 can be adaptively set according to the number of turns of the spiral protrusion 421. In this embodiment, the number of turns of the spiral protrusion 421 is 1.2 to 1.8, therefore, only two limiting protrusions 43 are needed to limit one segment of the spiral protrusion 421. In other embodiments, if the number of turns of the spiral protrusion 421 is large, the spiral protrusion 421 is long, and more limiting protrusions 43 can be adaptively designed to limit the spiral protrusion 421 in segments, thereby improving the stability of the adjustment of the spiral protrusion 421.

[0038] In a preferred embodiment, the hinge seat or adjusting plate 41 on which the limiting protrusion 43 is provided is equipped with a stop protrusion 46 to limit the rotation range of the spiral protrusion 421. This limits the adjustment amount of the door body 30 in a preset direction, preventing over-adjustment.

[0039] In one specific implementation method, combined with Figure 7 As shown, the spiral protrusion 421 has a starting end 421a near its rotation center and an ending end 421b away from its rotation center. When the spiral protrusion 421 rotates along its winding direction, the stop protrusion 46 is located on the movement path of the ending end 421b. That is, the adjustment amount is limited by restricting the position of the ending end 421b. In this embodiment, where the spiral protrusion 421 has 1.2 to 1.8 turns, and only two limiting protrusions 43 are provided to limit one segment of the spiral protrusion 421, the limiting protrusions 43 can be provided on opposite sides near the starting end 421a. At the same time, the stop protrusion 46 and the limiting protrusion 43 away from the rotation center are integrally provided, which can increase the adjustment range while simplifying the structure of the adjustment assembly 4. Of course, this is not a limitation. In other embodiments, when the spiral protrusion 421 rotates in the opposite direction to the winding direction of the spiral protrusion 421, the stop protrusion 46 is located on the movement path of the starting end 421a, that is, the adjustment amount is limited by restricting the position of the starting end 421a. In this embodiment, where the spiral protrusion 421 has 1.2 to 1.8 turns and only two limiting protrusions 43 are provided to limit one section of the spiral protrusion 421, the limiting protrusions 43 can be set on opposite sides near the end 421b. At the same time, the stop protrusion 46 and the limiting protrusion 43 near the center of rotation are integrally set, which can both increase the adjustment range and limit the adjustment amount, and at the same time simplify the structure of the adjustment component 4.

[0040] In some optional implementations, combined with Figure 8As shown, the hinge seat or adjusting plate 41 of the first adjusting member 42 has a through hole 21. The center of the hole 21 is located on the rotation axis of the first adjusting member 42, and the first adjusting member 42 is rotatably mounted in the hole 21. The side of the first adjusting member 42 away from the second adjusting member has an operating end 422 exposed outward from the hole 21. Thus, the user can operate the first adjusting member 42 to rotate it from the operating end 422 to adjust the position of the door 30 relative to the housing 20.

[0041] In one specific embodiment, the operating end 422 has a polygonal groove 4221, such as a cross-shaped groove, so that the first adjusting member 42 can be rotated directly by inserting a Phillips screwdriver into the cross-shaped groove to adjust the position of the door 30 relative to the box 20. The adjustment is simple.

[0042] In this embodiment, the adjusting plate 41 is located between the hinge seat and the corresponding door body 30 or box body 20, and the first adjusting member 42 is rotatably connected to the corresponding hinge seat. Specifically, when the adjusting plate 41 is fixed to the door body 30, the adjusting plate 41 is located on the side of the movable hinge seat facing the door body 30, and the first adjusting member 42 is rotatably connected to the movable hinge seat; when the adjusting plate 41 is fixed to the box body 20, the adjusting plate 41 is located on the side of the fixed hinge seat facing the box body 20, and the first adjusting member 42 is rotatably connected to the fixed hinge seat. Thus, the operating end 422 of the first adjusting member 42 is exposed outward toward the space where the linkage assembly 3 is located, facilitating user operation of the operation and driving the first adjusting member 42 to rotate, thereby adjusting the position of the door body 30 relative to the box body 20. Specifically, in the embodiment where the adjusting component 4 acts between the movable hinge seat 2 and the door body 30, the adjusting plate 41 is fixed on the door body 30, the movable hinge seat 2 is movably connected to the side of the adjusting plate 41 away from the door body 30, and the first adjusting member 42 is rotatably connected to the movable hinge seat 2.

[0043] In one specific embodiment, the guide groove 45 is disposed on the hinge seat, and the adjusting plate 41 is provided with a threaded hole 411 corresponding to the guide groove 45. The guide post 44 is a bolt that passes through the guide groove 45 and is threaded to the threaded hole 411. The outer diameter of the head of the bolt is larger than the groove width of the guide groove 45. Thus, the movable connection between the hinge seat and the adjusting plate 41 is realized by the bolt. At the same time, after the adjustment is completed, the relative fixation between the adjusting plate 41 and the corresponding hinge seat can be realized by tightening the bolt. Of course, this is not a limitation. In other embodiments, corresponding guide grooves 45 and through holes 412 can be provided on the hinge seat and the adjusting plate 41. The guide post 44 is a rivet that passes through the guide groove 45 and the through hole 412. After assembly, the rivet forms a first end located at the end of the guide groove 45 away from the through hole 412 and a second end located at the end of the through hole 412 away from the guide groove 45. The outer diameter of the first end is larger than the groove width of the guide groove 45, and the outer diameter of the second end is larger than the hole diameter of the through hole 412. The movable connection between the hinge seat and the adjusting plate 41 is achieved by the rivet passing through the through hole and the guide groove 45. Figure 4 As shown, in this embodiment, some of the guide posts 44 are bolts, and the other part of the guide posts 44 are rivets.

[0044] Of course, this is not a limitation. In other embodiments, the hinge seat can also be located between the adjusting plate 41 and the corresponding housing 20 or door 30. In this case, the adjusting plate 41 is located on the side of the hinge seat facing the linkage assembly 3, and the first adjusting member 42 is rotatably connected to the adjusting plate 41. Specifically: when the adjusting plate 41 is fixed to the door 30, the adjusting plate 41 is located on the side of the movable hinge seat facing the linkage assembly 3, and the first adjusting member 42 is rotatably connected to the adjusting plate 41; when the adjusting plate 41 is fixed to the housing 20, the adjusting plate 41 is located on the side of the fixed hinge seat facing the linkage assembly 3, and the first adjusting member 42 is rotatably connected to the adjusting plate 41. This exposes the operating end 422 of the first adjusting member 42 from the space where the adjusting plate 41 faces the linkage assembly 3, facilitating user operation and driving the first adjusting member 42 to rotate, thereby adjusting the position of the door 30 relative to the housing 20.

[0045] Combination Figures 11-13As shown, in the third embodiment of this application, when the hinge seat is located between the adjusting plate 41 and the corresponding housing 20 or door 30, the guide groove 45 is disposed on the hinge seat, and the guide post 44 is a post integrally formed on the adjusting plate 41. The guide post 44 has a fastening hole 441, and the guide post 44 is fastened to the corresponding housing 20 or door 30 by fasteners passing through the fastening hole 441, thereby realizing the movable connection between the adjusting plate 41 and the hinge seat, and the fixed connection between the adjusting plate 41, the hinge seat and the housing 20 or door 30. In the third embodiment of this application, the adjusting component 4 is disposed between the fixed hinge seat 1 and the housing, that is, the adjusting plate 41 is located on the side of the fixed hinge seat 1 away from the housing. It can be seen that the same guiding structure and connecting structure are also applicable to the embodiment where the adjusting component 4 is disposed between the movable hinge seat and the door, and the movable hinge seat is located between the adjusting plate 41 and the door 30.

[0046] In some optional embodiments, the circular hole 21 includes a first circular hole 211 and a second circular hole 212 located at the end of the first circular hole 211 away from the second adjusting member. The diameter of the first circular hole 211 is larger than the diameter of the second circular hole 212, and the shape of the first adjusting member 42 is adapted to the shape of the circular hole 21. Through the concave-convex fitting structure between the circular hole 21 and the first adjusting member 42, and in conjunction with the second adjusting member, the first adjusting member 42 can be limited from its opposite ends, preventing it from dislodging from the circular hole 21 and improving the stability of the adjusting assembly 4.

[0047] Combination Figure 14The diagram illustrates the fourth embodiment of this application. The difference between the third embodiment and the first and second embodiments lies in that the adjustment component 4 in this embodiment includes a first adjustment component 4a acting between the movable hinge seat 2 and the door body 30, and a second adjustment component 4b acting between the fixed hinge seat 1 and the housing 20. Specifically, in this embodiment, the adjustment direction of the first adjustment component 4a differs from that of the second adjustment component 4b; that is, the extension direction of the guide groove 45 in the first adjustment component 4a differs from that in the second adjustment component 4b. In a specific embodiment, the extension direction of the guide groove 45 in the first adjustment component 4a is the height direction of the door body 30, meaning the first adjustment component 4a is used to adjust the position of the door body 30 relative to the housing 20 in the height direction. The extension direction of the guide groove 45 in the second adjustment component 4b is the width direction F1, meaning the second adjustment component 4b is used to adjust the position of the door body 30 relative to the housing 20 in the width direction. Therefore, by setting the first adjustment component 4a and the second adjustment component 4b with different adjustment directions, the position of the door 30 relative to the box 20 can be adjusted in multiple directions, which can comprehensively optimize the sealing performance, installation error tolerance and service life, especially solve the problem of uneven door gaps caused by tilting or deformation, and significantly improve energy efficiency and user experience.

[0048] The structure of the first adjustment component 4a and the second adjustment component 4b, as well as the connection structure / method between them and the corresponding hinge seats, can adopt the structure of the adjustment component 4 and the connection structure / method between them and the corresponding hinge seats in the first and third embodiments described above. Therefore, they will not be described again here.

[0049] In summary, the hinge device 10 in this application adjusts the position of the door 30 relative to the housing 20 by using a spiral protrusion adjustment mechanism instead of the existing eccentric wheel adjustment mechanism. On the one hand, the spiral protrusion 421 is a radially gradually changing protrusion, and the space occupied by the adjustment stroke is much smaller than that of the eccentric wheel adjustment mechanism, which can achieve a wide range of adjustment and stepless continuous adjustment with high adjustment accuracy. On the other hand, the spiral protrusion 421 and the limiting protrusion 43 can be self-locked by inclined friction, which can achieve real-time self-locking and prevent loosening under the weight of the door 30 or vibration, thus ensuring stable adjustment.

[0050] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, for example, if the technologies in different embodiments can be used in combination to achieve the corresponding effects simultaneously, the solutions are also within the protection scope of this application. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A hinge device, comprising two hinge seats, a connecting rod assembly, and an adjusting assembly, wherein the two hinge seats are respectively connected to a housing and a door, the connecting rod assembly is connected between the two hinge seats, and the adjusting assembly is used to adjust the position of the door relative to the housing in a preset direction; characterized in that, The adjustment component includes: An adjusting plate, wherein the adjusting plate is fixed to the door body and the adjusting plate is located on the side of the hinge seat used to fix it to the door body facing the door body; or, the adjusting plate is fixed to the box body and the adjusting plate is located on the side of the hinge seat used to fix it to the box body facing the box body. A first adjusting member is rotatably connected to the corresponding hinge seat, and a second adjusting member is disposed on the adjusting plate. One of the first adjusting member and the second adjusting member is provided with a spiral protrusion, and the other is provided with at least two limiting protrusions spaced apart along the width direction of the spiral protrusion. Adjacent two limiting protrusions form a limiting groove for limiting the spiral protrusion. The preset direction is parallel to the plane where the spiral protrusion is located. The rotation axis of the first adjusting member is perpendicular to the plane where the spiral protrusion is located. The first adjusting member has an operating end exposed toward the space where the connecting rod assembly is located. The guiding structure includes a guide post disposed on one of the adjusting plate and the hinge seat, and a guide groove on the other, wherein the extending direction of the guide groove is the preset direction.

2. The hinge device as claimed in claim 1, characterized in that, The guide groove is provided on the hinge seat, and the adjusting plate is provided with a threaded hole corresponding to the guide groove. The guide post is a bolt that passes through the guide groove and is threaded to the threaded hole. The outer diameter of the head of the bolt is larger than the groove width of the guide groove.

3. A hinge device, comprising two hinge seats, a connecting rod assembly, and an adjusting assembly, wherein the two hinge seats are respectively connected to a housing and a door, the connecting rod assembly is connected between the two hinge seats, and the adjusting assembly is used to adjust the position of the door relative to the housing in a preset direction; characterized in that, The adjustment component includes: An adjusting plate, wherein the adjusting plate is fixed to the door body and the adjusting plate is located on the side of the hinge seat used to fix to the door body facing the link assembly; or, the adjusting plate is fixed to the box body and the adjusting plate is located on the side of the hinge seat used to fix to the box body facing the link assembly. A first adjusting member is rotatably connected to an adjusting plate, and a second adjusting member is disposed on a hinge seat corresponding to the adjusting plate. One of the first adjusting member and the second adjusting member is provided with a spiral protrusion, and the other is provided with at least two limiting protrusions spaced apart along the width direction of the spiral protrusion. Adjacent two limiting protrusions form a limiting groove for limiting the spiral protrusion. The preset direction is parallel to the plane where the spiral protrusion is located. The rotation axis of the first adjusting member is perpendicular to the plane where the spiral protrusion is located. The first adjusting member has an operating end exposed toward the space where the connecting rod assembly is located. The guiding structure includes a guide post disposed on one of the adjusting plate and the hinge seat, and a guide groove on the other, wherein the extending direction of the guide groove is the preset direction.

4. The hinge device as described in claim 3, characterized in that, The guide groove is disposed on the hinge seat, the guide post is a column integrally formed with the adjustment plate, and the guide post has a fastening hole.

5. The hinge device as described in claim 1 or 3, characterized in that, The preset direction is the width direction of the door; or, the preset direction is the height direction of the door; or, the preset direction is the thickness direction of the door.

6. The hinge device as described in claim 1 or 3, characterized in that, The rotation center of the spiral protrusion is on the rotation axis of the first adjusting member.

7. The hinge device as described in claim 1 or 3, characterized in that, The spiral protrusion has a starting end near its rotation center and an ending end away from its rotation center; the hinge seat or adjusting plate on which the limiting protrusion is provided has a stop protrusion that limits the rotation range of the spiral protrusion. When the spiral protrusion rotates along the winding direction of the spiral protrusion, the stop protrusion is located on the movement path of the terminal; or, when the spiral protrusion rotates in the opposite direction to the winding direction of the spiral protrusion, the stop protrusion is located on the movement path of the starting end.

8. The hinge device as described in claim 1 or 3, characterized in that, The operating end has a polygonal groove.

9. The hinge device as described in claim 1 or 3, characterized in that, The hinge seat or adjusting plate of the first adjusting member is provided with a through hole, the center of the hole is located on the rotation axis of the first adjusting member, and the first adjusting member is rotatably installed in the hole. The circular hole includes a first circular hole and a second circular hole located at the end of the first circular hole away from the second adjusting member. The diameter of the first circular hole is larger than the diameter of the second circular hole, and the shape of the first adjusting member is adapted to the shape of the circular hole.

10. The hinge device as claimed in claim 1 or 3, characterized in that, The two hinge seats include a fixed hinge seat for connecting to the housing and a movable hinge seat for connecting to the door; the adjustment assembly includes a first adjustment assembly acting between the movable hinge seat and the door and a second adjustment assembly acting between the fixed hinge seat and the housing, wherein the extension direction of the guide groove in the first adjustment assembly is different from the extension direction of the guide groove in the second adjustment assembly.

11. A refrigeration device, characterized in that, The refrigeration equipment includes a housing, a door, and a hinge device connecting the door to the housing, wherein the hinge device is the hinge device described in any one of claims 1 to 10.

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