Hinge assembly and refrigeration equipment

By setting a double-axis and double-trough structure shrinkage section in the refrigerator door hinge assembly, the object squeeze and collision problems caused by the self-locking and return of the refrigerator door body is solved, and the hovering function of the door body is realized, improving the convenience and safety of use.

CN223164396UActive Publication Date: 2025-07-29HEFEI HUALING CO LTD +2
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Patent Information

Application Number
CN202422175162.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-07-29
Estimated Expiration
2034-09-04

AI Technical Summary

Technical Problem

When the refrigerator door body is locked back into position without external force, it is easy to cause the items to be squeezed and collided, affecting the convenience and safety of use.

Method used

A double-axis and double-groove hinge assembly is adopted. By setting a shrinking section in the groove body, the first and second shafts of sliding fit are parked in the shrinking section and moved out under the action of external force, thereby realizing the hovering function of the door body.

Benefits of technology

The door body hovered at a preset angle, meeting the need to maintain opening for a long time, reducing the risk of items being squeezed and collision caused by self-locking return, and improving the convenience and safety of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hinge assembly which comprises a first hinge piece provided with a first shaft and a second shaft; the second hinge piece is provided with a first groove and a second groove, the first shaft is in sliding fit with the first groove, the second shaft is in sliding fit with the second groove, and a hole shrinkage section is arranged in the first groove and / or the second groove so that the first shaft can stop in the hole shrinkage section when moving to the hole shrinkage section along the first groove, and the second shaft can stop in the hole shrinkage section when moving to the hole shrinkage section along the second groove. And under the action of external force, the first shaft can move out of the reducing section, and / or the second shaft stops in the reducing section when moving to the reducing section along the second groove, and under the action of external force, the second shaft can move out of the reducing section. According to the hinge assembly and the refrigeration equipment, hovering of the door body can be achieved, and convenience and safety of opening and closing operation of the door body are improved.
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Description

Technical Field

[0001] This application belongs to the technical field of refrigeration equipment, and particularly relates to a hinge assembly and a refrigeration equipment. Background Art

[0002] As a commonly used household refrigeration equipment, a refrigerator mainly consists of a main body, a door body, and a hinge assembly. The hinge assembly is connected between the main body and the door body to achieve the function of deflecting and opening / closing the door body relative to the main body.

[0003] When using a refrigerator, it is often necessary to keep the door body in an open state for a long time to load or unload items, or to clean the inside of the main body. However, the door body is often configured with a self-locking ability, and under the influence of the self-weight of the door body, it will move in the direction of closing the main body, causing inconvenience in using the refrigerator. Especially in an embedded refrigerator, the unconstrained self-locking movement of the door body will increase the risk of squeezing and colliding with the items inside the main body and the operator to a certain extent. Summary of the Invention

[0004] This application provides a hinge assembly and a refrigeration equipment, aiming to at least solve the technical problem of high safety risk of unconstrained self-locking movement of the door body to a certain extent. For this reason,

[0005] On the one hand, an embodiment of this application provides a hinge assembly, including:

[0006] A first hinge member, provided with a first shaft and a second shaft;

[0007] A second hinge member, provided with a first groove and a second groove, the first shaft is slidably matched with the first groove, the second shaft is slidably matched with the second groove, and a reduced-diameter section is provided in the first groove and / or the second groove, so that when the first shaft moves along the first groove to the reduced-diameter section, it stops in the reduced-diameter section, and under the action of an external force, the first shaft can move out of the reduced-diameter section, and / or when the second shaft moves along the second groove to the reduced-diameter section, it stops in the reduced-diameter section, and under the action of an external force, the second shaft can move out of the reduced-diameter section.

[0008] In some embodiments, when the reduced-diameter section is located in the first groove, the reduced-diameter section includes a first boss and a second boss spaced apart along the length direction of the first groove on the side wall of the groove body, and in the width direction of the first groove, the distances from the first boss and the second boss to the opposite side wall of the groove body are less than the diameter of the first shaft.

[0009] In some embodiments, the first boss has a first pointed top, and in the width direction of the first groove, the distance from the first pointed top to the opposite side wall of the groove body is less than the diameter of the first shaft.

[0010] In some embodiments, the first boss further includes a first guide surface and a second guide surface spaced apart on the side wall of the groove body along the length direction of the first groove, and the first guide surface and the second guide surface intersect at the first pointed top.

[0011] In some embodiments, the first pointed top portion includes a convex arc surface, and the convex arc surface is respectively connected to the first guide surface and the second guide surface.

[0012] In some embodiments, in the length direction of the diameter-reduced section, the first boss and the second boss are located at two ends of the diameter-reduced section.

[0013] In some embodiments, the first boss and the second boss are respectively located on the side walls of the groove body on both sides of the reduced diameter section.

[0014] In some embodiments, a clearance gap is further provided on the second hinge member. In the width direction of the first groove, the clearance gap is located next to the reduced diameter section, so that when the first shaft moves out of or into the retracted section, the side wall of the groove body on the reduced diameter section is deformed toward the clearance gap.

[0015] Another aspect of the embodiments of the present application provides a refrigeration device, including a main body, a door body and the hinge assembly, wherein the first hinge member and the second hinge member are respectively arranged on one of the main body and the door body.

[0016] In some embodiments, when the opening angle of the door body relative to the main body is 88 degrees to 92 degrees, the first shaft is located in the reduced diameter section, and / or the second shaft is located in the reduced diameter section.

[0017] The embodiments of the present application have at least the following beneficial effects:

[0018] The hinge assembly and refrigeration equipment provided in the embodiments of the present application adopt a double-axis double-slot hinge configured with a first axis and a first slot and a second axis and a second slot that are slidably fitted, and a section of the first slot and / or the second slot on the double-axis double-slot hinge is set as a reduced diameter section, so that when the first axis and / or the second axis moves to the reduced diameter section, it stays in the reduced diameter section and can only move out of the reduced diameter section under the action of external force. Therefore, when operating the door body of the refrigeration equipment equipped with the above-mentioned hinge assembly, the state of the first axis and / or the second axis staying in the reduced diameter section can be utilized to make the door body hover at a preset angle and maintain it for a certain period of time, thereby meeting various needs that require keeping the door body open for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0020] Figure 1 Shows a schematic structural diagram of a refrigeration device in an embodiment of the present application;

[0021] Figure 2 Shows Figure 1 a schematic structural diagram of a hinge assembly in the refrigeration device in;

[0022] Figure 3 Shows Figure 2 a schematic structural diagram of a first hinge member in the hinge assembly in;

[0023] Figure 4 Shows Figure 2 a schematic structural diagram of a first structure of a second hinge member in the hinge assembly in;

[0024] Figure 5 Shows Figure 4 a three-dimensional structural diagram of a first groove and a second groove in the second hinge member in;

[0025] Figure 6 Shows Figure 2 a schematic structural diagram of a reduced-diameter section in the first groove in;

[0026] Figure 7 Shows Figure 6 a schematic diagram of the parked state of the reduced-diameter section and a first shaft in;

[0027] Figure 8 Shows Figure 2 a schematic structural diagram of a second structure of a second hinge member in the hinge assembly in;

[0028] Figure 9 Shows Figure 8 a three-dimensional structural diagram of a first groove and a second groove in the second hinge member in;

[0029] Figure 10 Shows Figure 8 a schematic structural diagram of a reduced-diameter section in the first groove in;

[0030] Figure 11 Shows Figure 10 a schematic diagram of the parked state of the reduced-diameter section and a first shaft in.

[0031] Reference numerals:

[0032] 11 - Main body, 12 - Door body;

[0033] 2 - Hinge assembly, 21 - First hinge member, 211 - First shaft, 212 - Second shaft, 22 - Second hinge member, 221 - First groove, 221a - Reduced - diameter section, 221a1 - First side wall of the groove body, 221a2 - Second side wall of the groove body, 221b - First boss, 221b1 - First pointed top, 221b11 - Convex arc surface, 221b2 - First guiding surface, 221b3 - Second guiding surface, 221c - Second boss, 221c1 - Second pointed top, 221c11 - Convex arc surface, 221c2 - Third guiding surface, 221c3 - Fourth guiding surface, 222 - Second groove, 223 - Relief gap. Detailed implementation manners

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0035] In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0036] The present application will be described below with reference to the accompanying drawings and specific embodiments:

[0037] In refrigeration equipment such as built - in refrigerators, a double - shaft double - groove hinge is often configured between the main body and the door body to balance the deflection and translation of the door body. At the same time, for safety considerations, the door body is often provided with a self - locking mechanism based on the self - weight of the door body, which can naturally close the door body without external force, maintaining the functional reliability and safety of the refrigeration equipment. Among them, when the refrigeration equipment is in use, in some cases, it is necessary to keep the door body at a certain opening degree and for a certain period of time, such as when a large amount of items need to be stored or retrieved, or when the main body needs to be cleaned. However, in actual use, affected by the self - locking function of the door body, operators and items are easily squeezed and collided by the door body, increasing the safety risk to a certain extent and making the use convenience not ideal.

[0038] Therefore, in view of the above requirements, the embodiments of the present application provide a hinge assembly and a refrigeration equipment, aiming to balance the hovering function of the double - shaft double - groove hinge and the existing rotational connection function, and to solve the problem that the use safety and convenience of refrigeration equipment such as refrigerators are not ideal to a certain extent.

[0039] Figure 1 The structural schematic diagram of the refrigeration device in the embodiment of the present application is shown; Figure 2 Shows Figure 1 The structural schematic diagram of the hinge assembly in the refrigeration device in; Figure 3 Shows Figure 2 The structural schematic diagram of the first hinge member in the hinge assembly in;

[0040] Figure 4 Shows Figure 2 The first structural schematic diagram of the second hinge member in the hinge assembly in; Figure 8 Shows Figure 2 The second structural schematic diagram of the second hinge member in the hinge assembly in.

[0041] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 8 In some embodiments, the hinge assembly 2 can adopt a double-axis double-slot hinge, and can include a first hinge member 21 and a second hinge member 22. A first shaft 211 and a second shaft 222 are provided on the first hinge member 21, and a first slot 221 and a second slot 222 are formed on the second hinge member 22; the first shaft 211 is movably embedded in the first slot 221 and can slide along the first slot 221; the second shaft 212 is movably embedded in the second slot 222 and can slide along the first slot 222.

[0042] When the hinge assembly 2 is installed on the main body 11 and the door body 12, during the opening and closing process of the door body, the first hinge member 21 and the second hinge member 22 can relatively deflect and translate; correspondingly, the first shaft 211 and the second shaft 212 also slide relative to the first slot 221 and the second slot 222 respectively.

[0043] In order to achieve hovering, through the design of the limit function structure, the relative sliding between the first shaft 211 and the first slot 221 and / or between the second shaft 212 and the second slot 222 can be restricted and maintained at the current position; at the same time, the smoothness of the sliding of the first shaft 211 in the first slot 221 and the smoothness of the sliding of the second shaft 212 in the second slot 222 also need to be considered.

[0044] Next, the structural form in which a limit function structure is formed between the first shaft 211 and the first slot 221 to restrict the relative sliding of the first shaft 211 and the first slot 221 will be taken as an example for illustration. It does not exclude the structural form in which a limit function structure is formed between the second shaft 212 and the second slot 222 to restrict the relative sliding of the second shaft 212 and the second slot 222.

[0045] A section of the slot of the first slot 221 can be set as a reduced-diameter section 221a. When the first shaft 211 slides along the first slot 221 into the reduced-diameter section 221a, the reduced-diameter section 221a can apply a moving resistance to the first shaft 211, causing the first shaft 211 to stop in the reduced-diameter section 221a; moreover, under the action of an external force, the first shaft 211 can only move out of the reduced-diameter section 221a.

[0046] When the hinge assembly 2 is installed on the door body 12 and the main body 11, during the process of the operator pushing and pulling the door body 12 to open and close, the first shaft 211 can slide relative to the first slot 221; when the first shaft 211 moves to the reduced-diameter section 221a, the first shaft 211 is subjected to the resistance applied by the reduced-diameter section 221a. After the operator feels the resistance, the operator can stop pushing and pulling the door body 12, so that the first shaft 211 can stop in the reduced-diameter section 221a, and the door body 12 hovers at the current position accordingly. When it is necessary to further open or close the door body 12, the operator can continue to push and pull the door body 12, driving the first hinge member 21 and the second hinge member 22 to move relative to each other, so that the first shaft 211 moves relative to the reduced-diameter section 221a and gradually moves out of the reduced-diameter section 221a.

[0047] The hinge assembly provided by the embodiment of the present application adopts a double-shaft double-slot hinge configured with a first shaft and a first slot and a second shaft and a second slot in sliding fit, and a section of the slot of the first slot and / or the second slot on the double-shaft double-slot hinge is set as a reduced-diameter section, so that when the first shaft and / or the second shaft moves to the reduced-diameter section, it stops in the reduced-diameter section and can only move out of the reduced-diameter section under the action of an external force. Therefore, when operating the door body of a refrigeration device equipped with the above hinge assembly, the state in which the first shaft and / or the second shaft stops in the reduced-diameter section can be utilized to make the door body hover at a preset angle and maintain it for a certain period of time, meeting various requirements for keeping the door body open for a long time, improving the use convenience; and also reducing the risk of personnel and item collision and extrusion caused by the self-locking and returning of the door body to a certain extent, improving the use safety.

[0048] Figure 5 Shows Figure 4 The three-dimensional structural schematic diagram of the first slot and the second slot in the second hinge member in Figure 6 Shows Figure 2 The structural schematic diagram of the reduced-diameter section in the first slot in Figure 7 Shows Figure 6 The schematic diagram of the stopping state of the reduced-diameter section and the first shaft in

[0049] See Figure 4 、 Figure 5 、 Figure 6 And Figure 7, in some embodiments, to maintain the smoothness and stability of the attitude when the first shaft 211 slides in cooperation with the first groove 221, the width of the first groove 221 is slightly larger than the diameter of the first shaft 211; to apply a sliding resistance to the first shaft 211, the reduced-diameter section 221a can be set in a reduced-diameter form, that is, the width of the reduced-diameter section 221a can be smaller than the width of the first groove 221 and the diameter of the first shaft 211, so that when the first shaft 211 moves into the indentation section 221a, the side wall of the reduced-diameter section 221a can tightly hold and limit the first shaft 211 by pressing against it.

[0050] When further opening or closing the door is required, the operator can continue to push or pull the door body 12, driving the relative movement of the first hinge member 21 and the second hinge member 22, so that the first shaft 211 breaks through the limiting resistance of the reduced-diameter section 221a and slides relative to the side wall of the reduced-diameter section 221a, gradually moving out of the reduced-diameter section 221a.

[0051] It should be noted that the width direction of the first groove 221 refers to the direction indicating the distance between the two opposite groove side walls of the first groove 221. It can also be understood that the width of the first groove 221 refers to the distance between the two side walls of the first groove 221, and this distance determines the maximum diameter of the first shaft 211 that can be accommodated, so as to ensure that the first shaft 211 can slide smoothly in the first groove 221.

[0052] In some embodiments, to reduce the friction area and extend the service life of the reduced-diameter section 221a, the width of only two local grooves of the reduced-diameter section 221a can also be set to be smaller than the width of the first groove 221 and the diameter of the first shaft 211; that is, the reduced-diameter section 221a can include a first boss 221b and a second boss 221c arranged along the length direction of the first groove 221, and the first boss 221b and the second boss 221c can be spaced apart and protrude from one side groove wall of the first groove 221, that is, on the first groove side wall 221a1.

[0053] Correspondingly, in the width direction of the first groove 221, the other side groove wall opposite to the first groove side wall 221a1 is the second groove side wall 221a2, and the distance from the first boss 221b and the second boss 221c to the second groove side wall 221a2 is smaller than the diameter of the first shaft 211.

[0054] During the process of the first shaft 211 moving into the reduced-diameter section 221a, it first squeezes through the groove section where the first boss 221b or the second boss 221c is located and enters the groove area between the first boss 221b and the second boss 221c, and then stops between the first boss 221b and the second boss 221c.

[0055] When the first shaft 211 needs to move out of the reduced-diameter section 221a, it is necessary to provide a certain degree of external force to drive the relative movement of the first shaft 211 and the first groove 221, so that the first shaft 211 squeezes through the obstruction of the first boss 221b or the second boss 221c and enters other areas of the first groove 221.

[0056] It should be noted that the length direction of the first groove 221 refers to the extension direction of the first groove 221, that is, the direction of the movement trajectory line of the first shaft 211 between the two end portions of the first groove 221.

[0057] In some embodiments, the first boss 221b and the second boss 221c can be arranged at both end portions of the reduced-diameter section 221a, and the groove body area between the first boss 221b and the second boss 221c is the parking area of the first shaft 211.

[0058] In some embodiments, in the length direction of the first groove 221, the length between the first boss 221b and the second boss 221c can be greater than or equal to the diameter of the first shaft 211, so that the first shaft 211 can be stably parked between the first boss 221b and the second boss 221c.

[0059] In some embodiments, the width of the groove body section between the first boss 221b and the second boss 221c can be equivalent to the width of the first groove 221, or the width of the groove body section between the first boss 221b and the second boss 221c can be other values greater than the diameter of the first shaft 211, so as to reduce the contact pressure between the first shaft 211 and the first groove 221 in the parked state, thereby reducing the sliding wear during the movement of the first shaft 211 to a certain extent and appropriately extending the service life.

[0060] In some embodiments, the first boss 221b and the second boss 221c can be respectively located on the first groove body side wall 221a1 and the second groove body side wall 221a2, that is, the first boss 221b and the second boss 221c are located on the side groove body side walls of different sides of the reduced-diameter section 221a, so as to avoid the first shaft 211 continuously abutting against the side groove body side wall of the same side of the reduced-diameter section 221a to a certain extent, appropriately reducing the unilateral wear degree of the first groove body 221 and extending the service life.

[0061] In some embodiments, in order to limit the sliding extrusion stroke of the first boss 221b and the first shaft 211 and reduce the wear area, the first boss 221b has a first pointed top 221b1, and the distance from the first pointed top 221b1 to the second groove body side wall 221a2 is less than the diameter of the first shaft 211, so that the first pointed top 221b1 can hinder the first shaft 211 from passing to a certain extent; but when the external force pushing the first shaft 211 reaches a certain degree, the first shaft 211 can squeeze the first pointed top 221b1 and thus pass through the first boss 221b.

[0062] In some examples, in order to maintain the smooth movement of the first shaft 211, the first boss 221b may include a first guiding surface 221b2 and a second guiding surface 221b3, and the first guiding surface 221b2 and the second guiding surface 221b3 may be spaced along the length direction of the first groove 221 and intersect at a first pointed top 221b1.

[0063] During the process that the first shaft 211 passes through the first boss 221b, the first shaft 211 may first be guided by the first guiding surface 221b2 to move towards the first pointed top 221b1, and gradually squeeze the first boss 221b to deform until it passes through the first pointed top 221b1, and then leave the first boss 221b along the second guiding surface 221b3, and slowly release the extrusion on the first boss 221b.

[0064] During the process that the first shaft 211 passes through the second boss 221b in the reverse direction, the first shaft 211 may first be guided by the second guiding surface 221b3 to move towards the first pointed top 221b1, and gradually squeeze the first boss 221b to deform until it passes through the first pointed top 221b1, and then leave the first boss 221b along the first guiding surface 221b2, and slowly release the extrusion on the first boss 221b.

[0065] That is to say, when the first shaft 211 passes through the first boss 221b, the first shaft 211 is a process of gradually squeezing the first boss 221b to deform and then slowly releasing, so as to be able to limit the impact on the first boss 221b in the length direction of the first groove 221 and maintain the stability of the shape of the first boss 221b; it can also make the first shaft 211 always in a stable radial support state, limit the occurrence of jamming, vibration and other situations of the first shaft 211, maintain smooth movement, so as to maintain the smooth movement during the opening process of the door body 12 and maintain the operation comfort.

[0066] In some embodiments, the first pointed top 221b1 may include a first convex arc surface 221b11, and the minimum distance from the first convex arc surface 221b11 to the side wall 221a2 of the second groove body is less than the diameter of the first shaft 211. The first convex arc surface 221b11 is connected with the first guiding surface 221b2 and the second guiding surface 221b3 to form the surface of the first boss 221b.

[0067] And the first convex arc surface 221b11 can also avoid scratching the first shaft 211 to a certain extent, and further evenly disperse the extrusion deformation, ensure the stability of the functional shape of the first boss 221b, and extend the service life.

[0068] In some embodiments, the first guiding surface 221b2 and the second guiding surface 221b3 may be arranged as concave arc surfaces, so as to reduce the amplitude of the initial extrusion stage of the first shaft 211 to a certain extent, buffer the impact vibration of the first shaft 211, and thus appropriately weaken the vibration amplitude of the door body 12, which helps to improve the convenience and comfort of using the door for opening and closing.

[0069] In some embodiments, the number of the first bosses 221b may be multiple, and the multiple first bosses 221b may be arranged at intervals along the groove depth direction of the first groove 221, so as to disperse the force to a certain extent, reduce the influence on the shape of the first groove 221, maintain the reliability of its function, and extend the service life.

[0070] In some embodiments, in order to limit the sliding extrusion stroke between the second boss 221c and the first shaft 211 and reduce the wear area, the second boss 221c is provided with a second pointed top 221c1, and the distance from the second pointed top 221c1 to the side wall 221a2 of the second groove body is less than the diameter of the first shaft 211, so that the second pointed top 221c1 can hinder the passage of the first shaft 211 to a certain extent; however, when the external force pushing the first shaft 211 reaches a certain level, the first shaft 211 can squeeze the second pointed top 221c1, and thus pass through the second boss 221c.

[0071] In some examples, in order to maintain the smooth movement of the first shaft 211, the second boss 221c may include a third guiding surface 221c and a fourth guiding surface 221c3, and the third guiding surface 221c2 and the fourth guiding surface 221c3 may be arranged at intervals along the length direction of the first groove 221 and intersect at the second pointed top 221c1.

[0072] During the process of the first shaft 211 passing through the second boss 221c, the first shaft 211 may first be guided by the third guiding surface 221c2 to move towards the second pointed top 221c1, and gradually squeeze the second boss 221c to deform until it passes through the second pointed top 221c1, and then leave the second boss 221c along the fourth guiding surface 221c3, and slowly release the extrusion on the second boss 221c.

[0073] During the process of the first shaft 211 passing through the second boss 221b in the reverse direction, the first shaft 211 may first be guided by the fourth guiding surface 221c3 to move towards the second pointed top 221c1, and gradually squeeze the second boss 221c to deform until it passes through the second pointed top 221c1, and then leave the second boss 221c along the third guiding surface 221c2, and slowly release the extrusion on the second boss 221c.

[0074] That is to say, when the first shaft 211 passes through the second boss 221c, the first shaft 211 gradually squeezes the second boss 221c to deform and then slowly releases it, so as to limit the impact on the second boss 221c in the length direction of the first groove 221 and maintain the stability of the shape of the second boss 221c; it can also keep the first shaft 211 in a stable radial support state, limit the occurrence of jamming, vibration, etc. of the first shaft 211, maintain smooth movement, so as to maintain the smoothness of the movement of the door body 12 during the opening process and maintain the operation comfort.

[0075] In some embodiments, the second tip 221c1 may also include a second convex arc surface 221c11, and the minimum distance from the second convex arc surface 21c11 to the side wall 221a2 of the second groove body is less than the diameter of the first shaft 211. Wherein, the second convex arc surface 221c11 is connected to the third guiding surface 221c2 and the fourth guiding surface 221c3 to form the surface of the second boss 221c.

[0076] And the second convex arc surface 221c11 can also avoid scratching the first shaft 211 to a certain extent, and further evenly disperse the extrusion deformation, ensure the stability of the functional shape of the second boss 221c, and extend the service life.

[0077] In some embodiments, the third guiding surface 221c2 and the fourth guiding surface 221c3 may be set as concave arc surfaces, so as to reduce the amplitude of the initial extrusion stage of the first shaft 211 to a certain extent, buffer the impact vibration of the first shaft 211, and thus appropriately weaken the vibration amplitude of the door body 12, which helps to improve the convenience and comfort of using the door.

[0078] In some embodiments, the number of the second bosses 221c may be multiple, and the multiple second bosses 221c may be arranged at intervals along the groove depth direction of the first groove 221, so as to disperse the force to a certain extent, reduce the influence on the shape of the first groove 221, maintain the reliability of its function, and extend the service life.

[0079] Figure 9 Shows Figure 8 The three-dimensional structure schematic diagram of the first groove and the second groove in the second hinge member in; Figure 10 Shows Figure 8 The structural schematic diagram of the reduced diameter section in the first groove in; Figure 11 Shows Figure 10 The schematic diagram of the parked state of the reduced diameter section and the first shaft in;

[0080] See Figure 8 、 Figure 9 、 Figure 10 And Figure 11, in some embodiments, considering that the reduced-diameter section 221a will deform to a certain extent when the first shaft 211 passes through, which will to some extent affect the overall shape of the second hinge member 22, and will also increase the contact pressure between the reduced-diameter section 221a and the first shaft 211, thereby increasing the wear amount and shortening the service life of the second hinge member 22. A relief gap 223 can be opened on the second hinge member 22, and the relief gap 223 can be arranged beside the reduced-diameter section 221a to absorb the deformation of the reduced-diameter section 221a and reduce the influence on the deformation of the reduced-diameter section 221a.

[0081] The relief gap 223 can be opened beside the reduced-diameter section 221a in the direction of the extrusion deformation. When the first shaft 211 passes through the reduced-diameter section 221a, the side wall of the groove body of the reduced-diameter section 221a will deform towards the relief gap 223, so as to control the deformation influence within the range of the relief gap 223, and to a certain extent reduce the extrusion deformation influence on the first groove 221 and maintain the reliability of its shape and function.

[0082] It should be noted that the relief gap 223 can be a through hole opened on the second hinge member 22, and the first groove body side wall 221a1 left between the relief gap 223 and the first groove 221 can be set as a thin wall, which helps to absorb the extrusion of the first shaft 211.

[0083] The length of the relief gap 223 can be greater than the length of the reduced-diameter section 221a, so as to fully absorb the deformation of the reduced-diameter section 221a.

[0084] In some embodiments, a section of the groove body of the second groove 222 can also be set as a reduced-diameter section. When the second shaft 212 slides along the second groove 222 into the reduced-diameter section, the reduced-diameter section can apply a moving resistance to the second shaft 212 to make the second shaft 212 stop in the reduced-diameter section; and, under the action of an external force, the second shaft 212 can be moved out of the reduced-diameter section in the second groove 222.

[0085] When the hinge assembly 2 is installed on the door body 12 and the main body 11, during the process of the operator pushing and pulling the door body 12 to open and close, the second shaft 212 can slide relative to the second groove 222. When moving to the reduced-diameter section, the second shaft 212 is subjected to the resistance applied by the reduced-diameter section. After the operator feels the resistance, the operator can stop pushing and pulling the door body 12, so that the second shaft 212 can stop in the reduced-diameter section, and the door body 12 hovers at the current position accordingly. When it is necessary to further open or close the door body 12, the operator can continue to push and pull the door body 12, driving the first hinge member 21 and the second hinge member 22 to move relative to each other, so that the second shaft 212 moves relative to the reduced-diameter section and gradually moves out of the reduced-diameter section.

[0086] In some embodiments, reduced-diameter segments may also be respectively provided in the first slot 221 and the second slot 222. When the first shaft 211 slides along the first slot 221 into the reduced-diameter segment, the reduced-diameter segment may apply a moving resistance to the first shaft 211, causing the first shaft 211 to stop at the reduced-diameter segment 221a; and, under the action of an external force, the first shaft 211 can only be moved out of the reduced-diameter segment 221a. When the second shaft 212 slides along the second slot 222 into the reduced-diameter segment, the reduced-diameter segment may apply a moving resistance to the second shaft 212, causing the second shaft 212 to stop at the reduced-diameter segment; and, under the action of an external force, the second shaft 212 can only be moved out of the reduced-diameter segment.

[0087] In some embodiments, the number of the reduced-diameter segments 221a may be multiple, and the multiple reduced-diameter segments 221a may be arranged along the length direction of the first slot 221, so as to be able to form multiple stopping positions. When the hinge assembly 2 is installed between the main body 11 and the door body 12, the door body 12 can also hover at multiple opening positions, improving the use convenience to a certain extent.

[0088] In some embodiments, a refrigeration device is further provided, including a main body 11, a door body 12, and the above hinge assembly 2, and the first hinge member 21 and the second hinge member 22 are respectively provided on one of the main body 11 and the door body 12.

[0089] The refrigeration device may be a refrigerator.

[0090] Based on the above hinge assembly 2, the door body 12 can be hovered at a set angle, improving the use convenience and safety.

[0091] In some embodiments, according to the usage habit, the hovering angle of the door body may be set to 88 degrees to 92 degrees.

[0092] When the reduced-diameter segment 221a is provided in the first slot 221, when the door body 12 rotates relative to the main body 11 to an opening degree of 88 degrees to 92 degrees, the first shaft 211 is located in the reduced-diameter segment 221a. Exemplarily, the hovering opening degree may be 88 degrees, 89 degrees, 90 degrees, 91 degrees, 92 degrees, or other values within 88 degrees to 92 degrees, and no specific limitation is made here.

[0093] When the second slot 222 is also provided with a reduced-diameter segment, the second shaft 212 is also located in the reduced-diameter segment of the second slot 22.

[0094] In this application, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0095] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0096] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0097] In this application, unless otherwise clearly defined or limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0098] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of this application, "a plurality of" means two or more, unless otherwise clearly and specifically defined.

[0099] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0100] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0101] Although the embodiments of this application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of this application. The scope of this application is defined by the claims and their equivalents.

Claims

1. A hinge assembly, characterized in that, include: A first hinge member is provided with a first axis and a second axis; The second hinge member is provided with a first groove and a second groove, the first shaft is slidably engaged with the first groove, and the second shaft is slidably engaged with the second groove, and a reduced diameter section is provided in the first groove and / or the second groove, so that when the first shaft moves along the first groove to the reduced diameter section, it stops in the reduced diameter section, and under the action of an external force, the first shaft can move out of the reduced diameter section, and / or when the second shaft moves along the second groove to the reduced diameter section, it stops in the reduced diameter section, and under the action of an external force, the second shaft can move out of the reduced diameter section.

2. The hinge assembly according to claim 1, wherein When the reduced diameter section is located in the first groove, the reduced diameter section includes a first boss and a second boss arranged on the side wall of the groove body at intervals along the length direction of the first groove, and in the width direction of the first groove, the distance between the first boss and the second boss and the opposite side wall of the groove body is less than the diameter of the first axis.

3. The hinge assembly according to claim 2, wherein, The first boss has a first pointed top, and in the width direction of the first groove, the distance from the first pointed top to the opposite side wall of the groove body is smaller than the diameter of the first shaft.

4. The hinge assembly according to claim 3, characterized in that, The first boss further includes a first guide surface and a second guide surface spaced apart on the side wall of the groove body along the length direction of the first groove, and the first guide surface and the second guide surface intersect at the first pointed top.

5. The hinge assembly according to claim 4, wherein The first pointed top portion includes a convex arc surface, and the convex arc surface is respectively connected with the first guide surface and the second guide surface.

6. The hinge assembly according to any one of claims 2 to 5, characterized in that, In the length direction of the diameter-reducing section, the first boss and the second boss are located at two ends of the diameter-reducing section.

7. The hinge assembly according to any one of claims 2-5, characterized in that, The first boss and the second boss are respectively located on the side walls of the groove body on both sides of the diameter-reducing section.

8. The hinge assembly according to any one of claims 1-5, characterized in that, The second hinge member is also provided with a clearance gap, which is located beside the reduced diameter section in the width direction of the first groove, so that when the first shaft moves out of or into the reduced diameter section, the side wall of the groove body of the reduced diameter section is deformed toward the clearance gap.

9. A refrigeration device, characterized in that, The hinge assembly comprises a main body, a door body, and the hinge assembly according to any one of claims 1 to 8, wherein the first hinge member and the second hinge member are respectively arranged on one of the main body and the door body.

10. The refrigeration device according to claim 9, characterized in that, When the opening angle of the door body relative to the main body is 88 degrees to 92 degrees, the first shaft is located in the reduced diameter section, and / or the second shaft is located in the reduced diameter section.