Embedded hinge device and refrigeration equipment

Abstract

The present invention discloses an embedded hinge device and refrigeration equipment, the hinge device includes a hinge seat, a rotating part, a linkage part and a limit part, the hinge seat includes a first guide part, the rotating part includes a first gear and a rotating body fixedly connected to the axis of the first gear; the linkage part includes a second gear meshing with the first gear, and a second guide part cooperating with the first guide part; the limit part includes a first limit member and a second limit member, the first limit member is simultaneously rotatably connected to the axis of the first gear and the axis of the second gear, and the second limit member limits the linkage part and / or the rotating part to reciprocate along a second preset trajectory; the embedded hinge device realizes that the door body of the refrigeration equipment with an embedded structure does not collide with the box body and the cabinet body on the side when it is opened, and the size is smaller, which reduces the space reserved for installing the hinge and improves the volume utilization rate of the refrigeration equipment.

Description

Technical Field

[0001] The present invention relates to an embedded hinge device, in particular to a refrigeration device having the embedded hinge device. Background Art

[0002] Embedded hinge devices generally have complex structures and occupy a large space, which increases the thickness of the beam. They are also inconvenient to install, have poor user experience, are not aesthetically pleasing, and have low volume utilization rates. Many problems restrict the application of embedded hinges and also make refrigeration equipment with embedded hinges generally expensive, affecting the sales of refrigeration equipment.

[0003] In view of this, it is necessary to improve the existing embedded hinge device to solve the above problems. Summary of the Invention

[0004] In order to solve the problems in the prior art, an object of the present invention is to provide an embedded hinge device and a refrigeration device having the embedded hinge device.

[0005] To achieve the above-mentioned object of the invention, one embodiment of the present invention provides an embedded hinge device, which includes:

[0006] a hinge base comprising a first guide portion;

[0007] The rotating part includes a first gear and a rotating body fixedly connected to the axis of the first gear;

[0008] a linkage portion comprising a second guide portion and a second gear, wherein the first guide portion guides the second guide portion to reciprocate along a first preset trajectory, the second guide portion is connected to the second gear, and the second gear is meshed with the first gear;

[0009] The limiting part includes a first limiting member and a second limiting member, wherein the first limiting member is simultaneously rotatably connected to the axis of the first gear and the axis of the second gear, and the second limiting member limits the linkage part and / or the rotating part to reciprocate along a second preset trajectory.

[0010] As a further improvement of the present invention, the hinge seat includes a support member, the limiting portion includes a sleeve member slidably connected to the support member, and the rotating portion is rotatably connected to the sleeve member at the axis of the first gear.

[0011] As a further improvement of the present invention, one of the second limiting member or the supporting member includes a limiting slider and the other includes a limiting groove, the limiting groove is arranged along a second preset track, and the limiting slider is inserted into the limiting groove.

[0012] As a further improvement of the present invention, the support member includes a support body and a first limit groove arranged on the support body, the second limit member includes a second limit groove and a plurality of limit rods arranged in the second limit groove, the first gear has a first limit position and a second limit position, and when the first gear rotates between the first limit position and the second limit position, the support body is always at least partially located in the second limit groove, and at least part of the limit rod is always located in the first limit groove.

[0013] As a further improvement of the present invention, the first limiting member, the second limiting member, and the sleeve member are integrally formed.

[0014] As a further improvement of the present invention, the limiting portion includes a socket plate, a sliding groove surrounded by the socket plate, and a plurality of openings passing through the socket plate. The socket plate is socketed on the outside of the support member through the sliding groove. A coaxial first rotating shaft is set at the axis center of the first gear, and a coaxial second rotating shaft is set at the axis center of the second gear. The first rotating shaft and the second rotating shaft respectively pass through different openings.

[0015] As a further improvement of the present invention, the first guide part includes a guide groove, the groove direction of the guide groove is set along the first preset trajectory, and the second guide part includes a guide rod, the guide rod is fixedly connected to the second gear, and the guide rod is inserted into the guide groove.

[0016] As a further improvement of the present invention, the second preset track extends linearly in a direction away from the hinge seat.

[0017] As a further improvement of the present invention, the first gear has a first extreme position and a second extreme position, and the guide groove has a first end and a second end;

[0018] At the first extreme position, in a direction parallel to the second preset trajectory, the distance between the first gear and the guide groove is shorter than that at the second extreme position, and the guide rod is located at the first end;

[0019] In the second extreme position, the guide rod is located at the second end;

[0020] In a direction parallel to the second preset trajectory, relative to the first gear, the first end is farther than the second end.

[0021] To achieve one of the above-mentioned objectives of the invention, an embodiment of the present invention provides a refrigeration device, which includes the above-mentioned embedded hinge device.

[0022] As a further improvement of the present invention, it includes a box body and a door body for opening and closing the box body, the hinge seat is fixedly connected to the box body, the rotating body is fixedly connected to the door body, the box body includes a side wall, and a preset gap is set on the side of the side wall away from the box body. The door body includes a corner away from the box body, and the corner is set on the side of the door body close to the side wall. The distance from the axis of the first gear to the corner is less than the sum of the distance from the axis of the first gear to the side wall and the thickness of the preset gap.

[0023] Compared with the prior art, the present invention has the following beneficial effects: the cooperation between the linkage part and the limiting part of the embedded hinge device enables the rotating part to rotate while moving along the second preset trajectory, so that the door body of the refrigeration equipment with an embedded structure does not collide with the box body and the side cabinet when it is opened. The embedded hinge device can be flatter and smaller in size than the existing hinge, occupies less space, has a beautiful appearance, and reduces the space reserved for installing the hinge, thereby improving the volume utilization rate of the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a refrigeration device with its door closed according to an embodiment of the present invention;

[0025] Figure 2 1 is a schematic structural diagram of a hinge device when the door of a refrigeration appliance is closed according to an embodiment of the present invention;

[0026] Figure 3 is an exploded view of a hinge device according to an embodiment of the present invention;

[0027] Figure 4 is a cross-sectional view of the second gear position of the hinge device when the door body is closed according to one embodiment of the present invention;

[0028] Figure 5 is a cross-sectional view showing the position of a guide rod of a hinge device when a door body is closed according to an embodiment of the present invention;

[0029] Figure 6 This is a top view of a refrigeration appliance with its door partially open according to an embodiment of the present invention;

[0030] Figure 7 yes Figure 6 A partial enlarged view of point A in the middle;

[0031] Figure 8 This is a schematic structural diagram of a refrigeration device according to an embodiment of the present invention when the door is fully opened;

[0032] Figure 9 is a cross-sectional view of a hinge device when the door of a refrigeration appliance according to an embodiment of the present invention is fully opened;

[0033] Among them, 100, hinge device; 200, box body; 201, side wall; 202, preset gap; 300, door body; 301, corner; 400, cabinet body; 10, hinge seat; 11, supporting body; 12, first limiting groove; 20, rotating part; 21, first gear; 22, rotating body; 23, first rotating shaft; 30, second gear; 31, second rotating shaft; 40, first guide part; 41, guide groove; 411, first end; 412, second end; 50, limiting part; 51, socket plate; 52, sliding groove; 521, second limiting groove; 522, limiting rod; 53, opening. DETAILED DESCRIPTION

[0034] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0035] It should be understood that the terms used herein, such as "upper," "above," "lower," and "below," etc., indicating spatial relative positions, are used for ease of explanation to describe the relationship of one element or feature relative to another element or feature as shown in the accompanying drawings. Spatially relative terms may be intended to encompass different orientations of the device in use or operation other than the orientation shown in the drawings.

[0036] An embodiment of the present invention provides an embedded hinge device and a refrigeration device having the embedded hinge device. The embedded hinge device is used to realize embedded installation of equipment, especially embedded installation of refrigeration equipment, and achieves the technical effects of easy installation and beautiful appearance.

[0037] The refrigeration device of this embodiment can be configured as a refrigerator, wine cabinet, freezer, or other refrigeration device, and is particularly suitable for refrigerators, and more specifically for built-in refrigerators. The sides of the refrigerator can be closely attached to a wall or cabinet 400. The refrigerator includes a housing 200, a door 300, and the embedded hinge device 100 of this embodiment. The door 300 of the built-in refrigerator can be flush with the outer surface of the cabinet 400 on the side, forming an aesthetically pleasing whole. The door 300 is rotatably connected to the housing 200 via the embedded hinge device 100 for opening and closing the housing 200.

[0038] In addition, the embedded hinge device 100 can also be used in other devices, as long as the device has a main body and a door 300 that can be opened or closed relative to the main body. The embedded hinge device 100 is used to connect the main body and the door 300 of the device, and realize that the door 300 can be opened or closed at a certain angle relative to the main body, while making it possible to install the device in an embedded form, such as an embedded microwave oven, embedded dishwasher, embedded oven, etc.

[0039] In order to clearly express the position and direction described in this embodiment, in this embodiment, the direction in which the door 300 opens is defined as the front, and the opposite direction is defined as the back. The direction of gravity can be defined as the bottom, and the opposite direction is defined as the top. The user stands in front of the refrigerator, and the two sides facing the refrigerator are the left and right sides respectively. Figure 1 、 Figure 6 、 Figure 8 In the embodiment, the process of opening the door 300 on the right side of the refrigerator is taken as an example for explanation.

[0040] The embedded hinge device 100 includes an upper embedded hinge device 100 and a lower embedded hinge device 100. The upper embedded hinge device 100 is arranged above the door body 300 and the box body 200, and the lower embedded hinge device 100 is arranged below the door body 300. Among them, the connection structures of the upper embedded hinge device 100 and the lower embedded hinge device 100 with the door body 300 and the box body 200 are symmetrically arranged. The other difference between the upper embedded hinge device 100 and the lower embedded hinge device 100 is that in terms of force, the lower embedded hinge device 100 also plays the role of supporting the gravity of the door body 300, but its structure is the same as that of the upper embedded hinge device 100. The following is a detailed description using the upper embedded hinge device 100 as an example, and reference can be made to Figure 1 、 Figure 6 、 Figure 8 The installation position of the hinge device 100 and the corresponding relationship between the hinge state and the rotation angle of the door body 300.

[0041] An embedded hinge device 100 of this embodiment includes a hinge seat 10, a rotating part 20, a linkage part and a limiting part 50, wherein the hinge seat 10 is fixedly connected to the box body 200, the rotating body 22 is fixedly connected to the door body 300, and the rotating part 20 controls the opening path and the flip-opening movement mode of the door body 300 to ensure that the box body 200 will not be squeezed during the opening process of the door body 300, and the side wall or cabinet body 400 will not be collided.

[0042] The rotating part 20 of the embedded hinge device 100 includes a first gear 21 and a rotating body 22 fixedly connected to the axis of the first gear 21. The rotating body 22 is fixedly connected to the axis of the first gear 21, which means that it is different from eccentric motion. The axis of rotation of the rotating body 22 coincides with the axis of rotation of the first gear 21, and the angular velocity of rotation of the rotating body 22 and the first gear 21 is also consistent.

[0043] The hinge base 10 plays the role of supporting and fixing the hinge device 100. The hinge base 10 includes a first guide portion 40, and the linkage portion includes a second guide portion and a second gear 30. The first guide portion 40 guides the second guide portion to reciprocate along the first preset trajectory. The second guide portion is connected to the second gear 30. The cooperation between the first guide portion 40 and the second guide portion adds a degree of freedom to the second gear 30, so that the second gear 30 can move on a plane perpendicular to the rotation axis of the second gear 30 while rotating. The first gear 21 and the second gear 30 can be as follows Figure 3 As shown, neither is a complete gear. By controlling its size and transmission ratio, the rotation angle can be kept below 360°, ensuring that the gear teeth on the gear are always engaged within the rotation range. One of the first guide portion 40 and the second guide portion can be configured as a slot, and the other can be configured as a slider within the slot, wherein the slot is shaped like a hole along a first predetermined trajectory, achieving a guided effect of movement along the slot.

[0044] The limiting member 50 includes a first limiting member and a second limiting member. The first limiting member is simultaneously rotationally connected to the axis of the first gear 21 and the axis of the second gear 30. The second limiting member restricts the reciprocating movement of the linkage member and / or the rotating member 20 along a second predetermined trajectory. The first limiting member ensures that the first gear 21 and the second gear 30 are always engaged. While engaged, it also acts to tighten the first gear 21, preventing it from moving away from the second gear 30. The second limiting member primarily guides the movement of the first gear 21 along the second predetermined trajectory, thereby pulling the second gear 30 along the intended path.

[0045] exist Figure 1 In the embodiment, the door body 300 is in a closed state, and the embedded hinge device 100 is as shown in FIG. Figure 2 、 4 , 5, when the door body 300 is opened to a certain angle, such as about 45 degrees, as shown in Figure 6 As shown, the embedded hinge device 100 is as shown in FIG. Figure 7 As shown, when the door body 300 is opened to a larger angle, such as about 90°, Figure 8 As shown, at this time, the hinge device 100 is as shown in FIG. Figure 9 shown.

[0046] Furthermore, the hinge base 10 includes a support member, the limiting portion 50 includes a sleeve member slidably connected to the support member, and the rotating portion 20 is rotatably connected to the sleeve member at the axis of the first gear 21. The lower embedded hinge device 100 needs to bear the weight and torque of the door body 300. The rotating body 22 of the lower embedded hinge device 100 is connected to the door body 300, and the weight of the door body 300 acts on the rotating portion 20. By rotating the rotating portion 20 at the axis of the first gear 21 and connecting it to the sleeve member, the sleeve member bears the weight of the door body 300. The sleeve member is slidably connected to the support member, so that the support member takes on the function of supporting the door body 300.

[0047] In this embodiment, the first limiting member, the second limiting member, and the sleeve member are integrally formed, and the three together form Figure 2 Or the structure shown in 3, in the structure of the upper limit part 50 in the figure, the relative fixation of the first gear 21 and the second gear 30, the support of the door body 300, and the guidance of the linkage part and / or the rotating part 20 to move along the second preset trajectory are simultaneously achieved.

[0048] The second limiting member and the supporting member are slidably connected. In one embodiment, one of the second limiting member or the supporting member includes a limiting slider and the other includes a limiting groove. The limiting groove is arranged along a second preset track, and the limiting slider is inserted into the limiting groove.

[0049] In another embodiment, Figure 2 、 4 As shown in Figures 5, 7 and 9, the support member includes a support body 11 and a first limiting groove 12 arranged on the support body 11, and the second limiting member includes a second limiting groove 521 and a plurality of limiting rods 522 arranged in the second limiting groove 521. Since the second limiting member can be integrally formed with the above-mentioned first limiting member and the socket member, the following discussion will be combined with the accompanying drawings to illustrate the limiting part 50 as a whole.

[0050] The first gear 21 has a first limit position and a second limit position, which correspond to the two limit positions corresponding to the closed and maximum open angles of the door body 300. A stop device can be installed between the door body 300 and the box body 200 to limit the maximum rotation angle of the door body 300. Between the first limit position and the second limit position, the first gear 21 is always engaged with the second gear 30.

[0051] When the first gear 21 rotates between the first limit position and the second limit position, the support body 11 is always at least partially located in the second limit groove 521, and at least part of the limit rod 522 is always located in the first limit groove 12, and a mutually nested positional relationship is formed between the support member and the limit portion 50. The limit rod 522 of the limit portion 50 is constrained inside the first limit groove 12 of the support member, and the first limit groove 12 constrains the limit rod 522 to move only along the extension path of the groove; the support body 11 of the support member is also constrained inside the second limit groove 521 of the limit portion 50, as shown in FIG. Figure 4 、 5 As shown in Figures 7 and 9, the support body 11 is constrained between the two vertically parallel plates of the limiting portion 50, which in turn limits the limiting portion 50 to move only along the extension direction of the support member. Therefore, on the one hand, the movement path is more reliable and less likely to cause detachment problems, and on the other hand, it provides better support for the limiting portion 50.

[0052] The limiting portion 50 includes a socket plate 51, a sliding groove 52 surrounded by the socket plate 51, and a plurality of openings 53 passing through the socket plate 51. The socket plate 51 is socketed on the outside of the support member through the sliding groove 52. A coaxial first rotating shaft 23 is set at the axis center of the first gear 21, and a coaxial second rotating shaft 31 is set at the axis center of the second gear 30. The first rotating shaft 23 and the second rotating shaft 31 pass through different openings 53 respectively.

[0053] The second limiting groove 521 can be a part of the sliding groove 52, and a partition is set in the sliding groove 52 to separate the second limiting groove 521. Figure 3 、 4 , 5, 7, and 9.

[0054] The first rotating shaft 23 is coaxially arranged with the axis of the first gear 21, that is, the first rotating shaft 23 and the first gear 21 rotate along the same axis, and the second rotating shaft 31 is coaxially arranged with the axis of the second gear 30, that is, the second rotating shaft 31 and the second gear 30 rotate along the same axis. The first rotating shaft 23 and the second rotating shaft 31 are both relative to the socket plate 51 of the limiting portion 50 in the opening 53, so that the axes of the first rotating shaft 23 and the second rotating shaft 31 are relatively fixed, and the first gear 21 is always engaged with the second gear 30.

[0055] Furthermore, the first guide portion 40 includes a guide groove 41, the groove direction of the guide groove 41 is set along the first preset track, and the second guide portion includes a guide rod, the guide rod is fixedly connected to the second gear 30, and the guide rod is inserted into the guide groove 41. Figure 3 、 5As shown in Figures 7 and 9, the second gear 30 is also restricted in movement by the guide groove 41 during the process of meshing and rotating with the first gear 21. That is to say, the second rotating shaft 31 not only rotates simply, but also moves on a plane perpendicular to the second rotating shaft 31. This movement process is restricted by the guide groove 41 and the guide rod, as well as by the limiting relationship between the limiting rod 522 and the first limiting groove 12. That is to say, the movement of the second gear 30 on the plane perpendicular to the second rotating shaft 31 is simultaneously restricted by the first preset trajectory and the second preset trajectory.

[0056] In this embodiment, the second preset trajectory extends linearly in the direction away from the hinge seat 10. Specifically, the linear extension direction is parallel to the front-to-back direction. Correspondingly, the socket plate 51 also moves along the front-to-back direction, the second rotating shaft 31 and the first rotating shaft 23 also move along the front-to-back direction, and the sliding groove 52 and the second limiting groove 521 are also arranged parallel to the front-to-back direction, so that the door body 300 moves linearly forward or backward while rotating, which has the technical effect of pushing the door body 300 to rotate and move forward at the same time.

[0057] The box body 200 includes a side wall 201. Since this embodiment is applied to the embedded hinge device 100, the axis of rotation of the door body 300 is the axis of rotation of the first gear 21, that is, the axis of the first gear 21. In order to achieve embedded installation and reduce the amount of the door body 300 extending out of the plane where the side wall 201 is located when rotating, the axis of the first gear 21 is within the vertical projection plane of the door body 300, such as Figure 7 As shown, if the door body 300 rotates directly, the door seal of the door body 300 will be pressed against the box body 200. In order to avoid interference between the door seal and the box body 200, the door body 300 moves away from the box body 200 while rotating.

[0058] The first gear 21 has a first extreme position and a second extreme position. In this embodiment, when the first gear 21 is in the first extreme position, the door body 300 is in a closed state, and the first gear 21 is closer to the box body 200. When the first gear 21 is in the second extreme position, the door body 300 is in an open state, and the first gear 21 is away from the box body 200.

[0059] The guide slot 41 has a first end 411 and a second end 412. In the first extreme position, the distance between the first gear 21 and the guide slot 41 is shorter than in the second extreme position in a direction parallel to the second predetermined trajectory, and the guide rod is located at the first end 411. In the second extreme position, the guide rod is located at the second end 412. In a direction parallel to the second predetermined trajectory, the first end 411 is further than the second end 412 relative to the first gear 21. For ease of description, the second predetermined trajectory is described as a straight line extending in the fore-and-aft direction. The first preset trajectory formed between the first end 411 and the second end 412 has a component in the front-to-back direction, so that when the guide rod moves in the guide groove 41, the guide groove 41 has a tendency to push the guide rod to move forward. When the movement trajectory of the guide rod from the first end 411 to the second end 412 includes a forward movement component, the guide groove 41 also guides the second gear 30 and the first gear 21 to move forward, and then guides the door body 300 to move forward, thereby increasing the amount of forward movement of the door body 300 and ensuring that the door seal of the door body 300 will not interfere with the box body 200.

[0060] Furthermore, the closer the guide slot 41 is to the first end 411, the greater the speed of the movement component of the guide rod in the parallel and front-to-back directions. Figure 3 、 5 As shown in , 7, and 9, this arrangement allows the guide rod to have more forward movement components when the door body 300 is opened, thereby pushing the first gear 21 to move forward faster. After the door body 300 is opened to a certain angle, the closer the guide rod is to the second end 412, the smaller the movement component in the front-to-back direction.

[0061] Correspondingly, at the initial stage of the door 300 opening, Figures 1 to 6 During the movement, the door body 300 moves forward faster. Figures 6 to 8 During the movement, the forward movement speed slows down. Even when the door body 300 is opened 90 degrees, the component speed of the door body 300 in the forward and backward direction can be 0. This configuration allows the door body 300 to move away from the box body 200 as quickly as possible when opening, and move to a position closer to the front, thereby ensuring that the door seal is not squeezed and that the door body 300 does not interfere with the box body 200 during rotation.

[0062] Furthermore, the radius of the pitch circle of the first gear 21 is denoted as the first radius, the radius of the pitch circle of the second gear 30 is denoted as the second radius, the radius of curvature of the arc in which the guide groove 41 is located is denoted as the guide radius, and the product of the distance from the guide rod to the axis of the second gear 30 and the first radius is greater than the product of the guide radius and the second radius. The length of the guide radius is denoted as L1, the distance from the guide rod to the axis of the second gear 30 is denoted as L2, the first radius is denoted as R1, and the second radius is denoted as R2. In other words, R1*L2>R2*L1.

[0063] When R1*L2>R2*L1 is satisfied, the door body 300 can move forward faster in the early stage of opening, while in the later stage of opening, the movement of the door body 300 in the front and rear directions is reduced, and more rotational movement of the door body 300 is performed.

[0064] Specifically, taking the case where R1 and L1 are similar in size, we primarily consider L2 and R2, as reflected in the aforementioned relationship: L2 > R2. In this case, the linear velocity of the second gear 30 at the guide rod is greater than the linear velocity of the teeth on the pitch circle of the second gear 30. Because the first gear 21 meshes with the second gear 30, the linear velocity of the teeth of the first gear 21 is equal to the linear velocity of the teeth of the second gear 30. The linear velocity at the guide rod is greater than the linear velocity at the end of the first gear 21, meaning that the guide rod moves faster than the rotation speed of the door 300. In other words, the less movement of the first gear 21, the more movement of the guide rod. Because the movement of the guide rod is provided by the first gear 21, when the user pulls the door 300, it moves forward faster in the initial opening phase. Furthermore, the closer the guide slot 41 is to the first end 411, the greater the velocity of the guide rod's parallel and forward-backward motion component, allowing the door 300 to be pushed outward more quickly.

[0065] Furthermore, the linear velocity of the guide rod relative to the center of the guide groove 41 is equal to the linear velocity of the second gear 30 at the guide rod. Therefore, the product of the distance from the guide rod to the axis of the second gear 30 and the angular velocity of the second gear 30 at the guide rod is equal to the product of the guide radius and the angular velocity of the guide rod moving within the guide groove 41. Furthermore, because the linear velocity at the teeth of the first gear 21 is equal to the linear velocity at the teeth of the second gear 30, the product of the second radius and the angular velocity of the second gear 30 at the pitch circle of the teeth is equal to the product of the first radius and the angular velocity of the first gear 21 at the pitch circle of the teeth. In addition, since the guide rod and the gear teeth at the pitch circle of the second gear 30 are both located on the second gear 30, the angular velocity of the second gear 30 at the guide rod is equal to the angular velocity of the gear teeth at the pitch circle of the second gear 30. Combining all the above relationships, when R1*L2>R2*L1, the speed of the guide rod moving in the guide groove 41 can be controlled to be greater than the speed of rotation of the first gear 21, so that the door body 300 can be pushed forward faster when it rotates.

[0066] Furthermore, a preset gap 202 is set on the side of the side wall 201 away from the box body 200, the door body 300 includes a corner 301 away from the box body 200, and the corner 301 is set on the side of the door body 300 close to the side wall 201, and the distance from the axis of the first gear 21 to the corner 301 is less than the sum of the distance from the axis of the first gear 21 to the side wall 201 and the thickness of the preset gap 202. Figure 7 As shown, the preset gap 202 is the gap between the refrigeration equipment and the side cabinet 400. When this condition is met, the door 300 can be controlled to avoid colliding with the side cabinet 400 during opening. For built-in refrigerators, the gap between the refrigerator and the side cabinet 400 or wall varies depending on the embedding level. The higher the embedding level, the smaller the preset gap 202. For example, some require a maximum side preset gap 202 of 30 mm, while when the embedding level requirement is higher, it can be 20 mm. The higher the embedding level, the less the door 300 can extend outward.

[0067] Compared with the prior art, this embodiment has the following beneficial effects:

[0068] The cooperation between the linkage part and the limiting part 50 of the embedded hinge device 100 enables the rotating part 20 to rotate while moving along the second preset trajectory, so that the door body 300 of the refrigeration equipment with an embedded structure does not collide with the box body 200 and the cabinet body 400 on the side when it is opened. The embedded hinge device 100 can be flatter and smaller in size than the existing hinge, and occupies less space. It has a beautiful appearance and reduces the space reserved for installing the hinge, thereby improving the volume utilization rate of the refrigeration equipment.

[0069] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0070] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An embedded hinge device, characterized in that: It includes: a hinge base comprising a first guide portion; The rotating part includes a first gear and a rotating body fixedly connected to the axis of the first gear; a linkage portion, comprising a second guide portion and a second gear, wherein the first guide portion guides the second guide portion to reciprocate along a first preset trajectory, the second guide portion is connected to the second gear, and the second gear is engaged with the first gear, the first guide portion comprises a guide groove, the groove direction of the guide groove is arranged along the first preset trajectory, and the second guide portion comprises a guide rod, the guide rod is fixedly connected to the second gear, and the guide rod is inserted into the guide groove; a limiting portion, comprising a first limiting member and a second limiting member, wherein the first limiting member is simultaneously rotatably connected to the axis of the first gear and the axis of the second gear, and the second limiting member limits the linkage portion and / or the rotating portion from reciprocating along a second preset trajectory; The pitch circle radius of the first gear is recorded as R1, the pitch circle radius of the second gear is recorded as R2, the arc curvature radius of the guide groove is recorded as L1, and the distance from the guide rod to the axis of the second gear is recorded as L2, satisfying R1×L2>R2×L1.

2. The embedded hinge device according to claim 1, characterized in that: The hinge seat includes a support member, the limiting portion includes a sleeve member slidably connected to the support member, and the rotating portion is rotatably connected to the sleeve member at the axis of the first gear.

3. The embedded hinge device according to claim 2, characterized in that: One of the second limiting member or the supporting member includes a limiting slider, and the other includes a limiting groove. The limiting groove is arranged along a second preset track, and the limiting slider is inserted into the limiting groove.

4. The embedded hinge device according to claim 3, characterized in that: The support member includes a support body and a first limit groove arranged on the support body, the second limit member includes a second limit groove and a plurality of limit rods arranged in the second limit groove, the first gear has a first limit position and a second limit position, when the first gear rotates between the first limit position and the second limit position, the support body is always at least partially located in the second limit groove, and at least part of the limit rod is always located in the first limit groove.

5. The embedded hinge device according to claim 2, characterized in that: The first limiting member, the second limiting member, and the sleeve member are integrally formed.

6. The embedded hinge device according to claim 5, characterized in that: The limiting portion includes a socket plate, a sliding groove surrounded by the socket plate, and a plurality of openings passing through the socket plate. The socket plate is socketed on the outside of the support member through the sliding groove. A coaxial first rotating shaft is set at the axis center of the first gear, and a coaxial second rotating shaft is set at the axis center of the second gear. The first rotating shaft and the second rotating shaft respectively pass through different openings.

7. The embedded hinge device according to claim 1, characterized in that: The second preset track extends linearly in a direction away from the hinge seat.

8. The embedded hinge device according to claim 7, characterized in that: The first gear has a first extreme position and a second extreme position, and the guide slot has a first end and a second end; At the first extreme position, in a direction parallel to the second preset trajectory, the distance between the first gear and the guide groove is shorter than that at the second extreme position, and the guide rod is located at the first end; In the second extreme position, the guide rod is located at the second end; In a direction parallel to the second preset trajectory, relative to the first gear, the first end is farther than the second end.

9. A refrigeration device, characterized in that: It comprises the embedded hinge device according to any one of claims 1 to 8.

10. The refrigeration equipment according to claim 9, characterized in that: It includes a box body and a door body for opening and closing the box body, the hinge seat is fixedly connected to the box body, the rotating body is fixedly connected to the door body, the box body includes a side wall, and a preset gap is set on the side of the side wall away from the box body. The door body includes a corner away from the box body, and the corner is set on the side of the door body close to the side wall. The distance from the axis of the first gear to the corner is less than the sum of the distance from the axis of the first gear to the side wall and the thickness of the preset gap.

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