CN115704260A - Embedded hinge device and refrigeration equipment - Google Patents

Abstract

The invention discloses an embedded hinge device and refrigeration equipment, wherein the hinge device comprises a hinge seat, a rotating part, a linkage part and a limiting part, the hinge seat comprises a first guide part, and the rotating part comprises a first gear and a rotating body fixedly connected to the axis of the first gear; the linkage part comprises a second gear meshed with the first gear and a second guide part matched with the first guide part; the limiting part comprises a first limiting part and a second limiting part, the first limiting part is simultaneously and rotatably connected with the axis of the first gear and the axis of the second gear, and the second limiting part limits the linkage part and/or the rotating part to reciprocate to a second preset track; the embedded hinge device has the advantages that the door body of the refrigeration equipment with the embedded structure is not collided with the box body and the cabinet body on the side surface when being opened, the size is smaller, the occupation of the space reserved for installing the hinge is reduced, and the volume utilization rate of the refrigeration equipment is improved.

Description

Embedded hinge device and refrigeration equipment

Technical Field

The invention relates to an embedded hinge device, in particular to refrigeration equipment with the embedded hinge device.

Background

The embedded hinge device is complex in general structure, large in occupied space, capable of increasing the thickness of the beam, inconvenient to install, poor in use experience, poor in attractiveness, low in volume utilization rate, and capable of restricting application of the embedded hinge due to a plurality of problems, and the refrigeration equipment with the embedded hinge is high in general price, so that the sales volume of the refrigeration equipment is influenced.

Accordingly, there is a need for an improved embedded hinge device to solve the above problems.

Disclosure of Invention

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 same.

To achieve the above object, an embodiment of the present invention provides an embedded hinge device, including:

a hinge base including a first guide portion;

the rotating part comprises a first gear and a rotating body fixedly connected to the axle center of the first gear;

the linkage part comprises a second guide part and a second gear, the first guide part guides the second guide part to reciprocate along a first preset track, the second guide part is connected with the second gear, and the second gear is meshed with the first gear;

and the limiting part comprises a first limiting part and a second limiting part, the first limiting part is simultaneously rotatably connected with the axle center of the first gear and the axle center of the second gear, and the second limiting part limits the linkage part and/or the rotating part to reciprocate along a second preset track.

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 an axis of the first gear.

As a further improvement of the present invention, one of the second limiting member or the supporting member includes a limiting sliding block, and the other includes a limiting groove, the limiting groove is disposed along a second predetermined track, and the limiting sliding block is inserted into the limiting groove.

As a further improvement of the present invention, the supporting member includes a supporting body and a first limiting groove disposed on the supporting body, the second limiting member includes a second limiting groove and a plurality of limiting rods disposed in the second limiting groove, the first gear has a first limiting position and a second limiting position, when the first gear rotates between the first limiting position and the second limiting position, the supporting body is always at least partially disposed in the second limiting groove, and at least a portion of the limiting rods is always disposed in the first limiting groove.

As a further improvement of the present invention, the first limiting member, the second limiting member and the socket member are integrally formed.

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 penetrating through the socket plate, the socket plate is sleeved outside the supporting member through the sliding groove, a first coaxial rotating shaft is disposed at an axis of the first gear, a second coaxial rotating shaft is disposed at an axis of the second gear, and the first rotating shaft and the second rotating shaft respectively penetrate through different openings.

As a further improvement of the present invention, the first guide portion includes a guide groove, a grooving direction of the guide groove is disposed along the first preset trajectory, and the second guide portion includes a guide rod fixedly connected to the second gear, the guide rod being inserted into the guide groove.

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

As a further improvement of the present invention, the first gear has a first limit position and a second limit position, and the guide groove has a first end and a second end;

in the first extreme position, in the direction parallel to the second preset track, the distance between the first gear and the guide groove is shorter than that of the second extreme position, and the guide rod is positioned at the first end;

in the second extreme position, the guide rod is located at the second end;

the first end is farther from the second end relative to the first gear in a direction parallel to the second preset trajectory.

In order to achieve one of the above objects, an embodiment of the present invention provides a refrigeration device, which includes the above-mentioned embedded hinge device.

As a further improvement of the present invention, 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, a preset gap is provided on a side of the side wall away from the box body, the door body includes a corner far away from the box body, the corner is provided on a side of the door body close to the side wall, and a distance from an axis of the first gear to the corner is smaller than a sum of a distance from the axis of the first gear to the side wall and a thickness of the preset gap.

Compared with the prior art, the invention has the following beneficial effects: this embedded hinge means linkage portion and spacing cooperation realizes rotating when the rotation portion predetermines the orbit motion along the second, when having realized that the refrigeration plant door body of embedded structure is opened not with the cabinet body collision of box and side, this embedded hinge means can be flatter for current hinge, and the size is littleer, and the space that occupies is little, has reduced the occupation of the space of reserving for the installation hinge when the appearance is pleasing to the eye, has improved refrigeration plant's volume rate of utilization.

Drawings

Fig. 1 is a schematic structural diagram of a refrigeration equipment door body according to an embodiment of the invention when closed;

fig. 2 is a schematic structural diagram of a hinge device when a refrigeration equipment door body according to an embodiment of the invention is closed;

FIG. 3 is an exploded view of a hinge assembly according to one embodiment of the present invention;

FIG. 4 is a cross-sectional view of a second gear position of the hinge assembly with the door closed in accordance with one embodiment of the present invention;

fig. 5 is a sectional view showing a position of a guide lever of the hinge device when the door body according to the embodiment of the present invention is closed;

FIG. 6 is a top view of a refrigeration unit door section in accordance with an embodiment of the present invention when partially open;

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

FIG. 8 is a schematic structural view of a refrigeration device according to an embodiment of the present invention when the door is fully opened;

FIG. 9 is a cross-sectional view of the hinge assembly with the refrigeration unit door fully open in accordance with one embodiment of the present invention;

100, a hinge device; 200. a box body; 201. a side wall; 202. presetting a gap; 300. a door body; 301. a corner; 400. a cabinet body; 10. a hinge mount; 11. a support body; 12. a first limit groove; 20. a rotating part; 21. a first gear; 22. rotating the body; 23. a first rotating shaft; 30. a second gear; 31. a second rotating shaft; 40. a first guide portion; 41. a guide groove; 411. a first end; 412. a second end; 50. a limiting part; 51. sleeving and connecting plates; 52. a sliding groove; 521. a second limit groove; 522. a limiting rod; 53. and (6) opening holes.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

It will be understood that terms used herein such as "upper," "above," "lower," "below," and the like, refer to relative positions in space and are used for convenience in description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

An embodiment of the present invention provides an embedded hinge device and a refrigeration device having the same, where the embedded hinge device is used to implement embedded installation of a device, and particularly, for embedded installation of a refrigeration device, technical effects of convenience in installation and beautiful appearance are obtained.

The refrigeration equipment of the embodiment can be set into various refrigeration equipment such as a refrigerator, a wine cabinet, a freezer, an ice chest and the like, is particularly suitable for the refrigerator and is more directed at an embedded refrigerator, the side face of the refrigerator can be tightly attached to a wall body or a cabinet body 400, the refrigerator comprises a box body 200, a door body 300 and the embedded hinge device 100 of the embodiment, and the door body 300 of the embedded refrigerator can be flush with the outer surface of the cabinet body 400 on the side face to form an attractive whole. The door 300 is rotatably coupled to the cabinet 200 by the built-in hinge device 100 for opening and closing the cabinet 200.

In addition, the in-line hinge device 100 may be used for other apparatuses as long as the apparatus is provided with a body and a door 300 openable or closable with respect to the body. The built-in hinge device 100 is used to connect the body of the appliance and the door 300, and enables the door 300 to be opened at a certain angle or closed with respect to the body, while enabling the installation of the appliance in a built-in manner, such as a built-in microwave oven, a built-in dishwasher, a built-in oven, and the like.

To clearly express the positions and directions described in this embodiment, the direction in which the door 300 is opened is defined as front, the opposite direction is defined as back, and the direction of gravity is defined as down, the opposite direction is defined as up, the user stands in front of the refrigerator, and the two sides facing the refrigerator are the left and right sides, respectively, in fig. 1, 6, and 8, the process of opening the door 300 on the right side of the refrigerator is taken as an example for explanation.

The recessed hinge assembly 100 includes an upper recessed hinge assembly 100 and a lower recessed hinge assembly 100, the upper recessed hinge assembly 100 is disposed above the door 300 and the cabinet 200, and the lower recessed hinge assembly 100 is disposed below the door 300. The connection structure between the upper and lower hinge devices 100 and the door 300 and the box 200 are symmetrically arranged, and the other difference between the upper and lower hinge devices 100 and 100 is that the lower hinge device 100 simultaneously supports the gravity of the door 300 under a force, but the structure is the same as that of the upper hinge device 100. The following description is made in detail by taking the above-mentioned embedded hinge device 100 as an example, and reference may be made to the installation position of the hinge device 100 and the corresponding relationship between the hinge state and the rotation angle of the door 300 in fig. 1, fig. 6 and fig. 8.

The embedded hinge device 100 of the embodiment comprises a hinge seat 10, a rotating part 20, a linkage part and a limiting part 50, wherein the hinge seat 10 is fixedly connected with a box body 200, a rotating body 22 is fixedly connected with a door body 300, the rotating part 20 controls the opening path and the turning opening movement mode of the door body 300, and the box body 200 is not extruded and the side wall or the cabinet body 400 is not collided in the opening process of the door body 300.

The rotating portion 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 and the axis of rotation of the first gear 21 coincide with each other, and the rotational angular speeds of the rotating body 22 and the first gear 21 are also the same.

The hinge base 10 plays a role in supporting and fixing the hinge device 100, the hinge base 10 comprises a first guide part 40, the linkage part comprises a second guide part and a second gear 30, the first guide part 40 guides the second guide part to reciprocate along a first preset track, the second guide part is connected with the second gear 30, the first guide part 40 and the second guide part are matched to increase a degree of freedom for the second gear 30, so that the second gear 30 can move on a plane vertical to the rotation axis of the second gear 30 while rotating, the first gear 21 and the second gear 30 can not be complete gears as shown in fig. 3, the rotation angle of the first gear can not reach 360 degrees by controlling the size and the transmission ratio of the first gear, and the coverage range of gear teeth on the gears can be ensured to be always meshed within the rotation range. One of the first guide portion 40 and the second guide portion may be provided as a slot and the other may be provided as a slider within the slot, wherein the slot is shaped as a hole along a first predetermined trajectory, achieving a guided effect of movement along the slot.

The limiting portion 50 includes a first limiting member and a second limiting member, the first limiting member is rotatably connected to the axis of the first gear 21 and the axis of the second gear 30, and the second limiting member limits the linkage portion and/or the rotating portion 20 to reciprocate along a second predetermined track. The first limiting member ensures that the first gear 21 and the second gear 30 are always meshed with each other, and simultaneously tensions the first gear 21 to prevent the first gear 21 from being far away from the second gear 30. The second limiting member is mainly used for guiding the first gear 21 to move along a second preset track, so as to achieve the purpose of drawing the second gear 30 to move according to an expected planned path.

In fig. 1, the door 300 is in a closed state, and at this time, as shown in fig. 2, 4 and 5, when the door 300 is opened by a certain angle, for example, about 45 °, as shown in fig. 6, at this time, as shown in fig. 7, when the door 300 is opened by a larger angle, for example, about 90 °, as shown in fig. 8, at this time, the hinge device 100 is as shown in fig. 9.

Further, the hinge base 10 includes a supporting member, the limiting portion 50 includes a sleeve member slidably connected to the supporting member, and the rotating portion 20 is rotatably connected to the sleeve member at the axis of the first gear 21. For the lower embedded hinge device 100, the rotating body 22 of the lower embedded hinge device 100 is connected to the door 300, the gravity of the door 300 acts on the rotating portion 20, the rotating portion 20 is rotatably connected to the socket at the axis of the first gear 21, so that the socket bears the gravity of the door 300, the socket is slidably connected to the support, and the support bears the function of supporting the door 300.

In this embodiment, the first limiting member, the second limiting member and the sleeve member are integrally formed, and the first limiting member, the second limiting member and the sleeve member together form a structure as shown in fig. 2 or 3, and in the structure of the limiting portion 50, the relative fixing of the first gear 21 and the second gear 30, the support of the door 300 and the movement of the guiding linkage portion and/or the rotating portion 20 along the second predetermined track are simultaneously achieved.

In an embodiment of the present invention, one of the second limiting member and the supporting member includes a limiting slider and the other includes a limiting groove, the limiting groove is disposed along the second predetermined track, and the limiting slider is inserted into the limiting groove.

In another embodiment, as shown in fig. 2, 4, 5, 7, and 9, the supporting member includes a supporting body 11 and a first limiting groove 12 disposed on the supporting body 11, and the second limiting member includes a second limiting groove 521 and a plurality of limiting rods 522 disposed in the second limiting groove 521, since the second limiting member can be integrally formed with the first limiting member and the sleeve member, the following discussion will be described with reference to the drawings, and the second limiting member is an integral limiting portion 50.

The first gear 21 has a first limit position and a second limit position, which correspond to two limit positions corresponding to the maximum angles at which the door 300 is closed and the door 300 is opened, and a stopper device may be installed between the door 300 and the cabinet 200 to limit the maximum angle at which the door 300 rotates. Between the first extreme position and the second extreme position, the first gearwheel 21 is always in engagement with the second gearwheel 30.

When the first gear 21 rotates between the first limit position and the second limit position, at least a part of the support body 11 is always located in the second limit groove 521, and at least a part of the limit rod 522 is always located in the first limit groove 12, a mutual nested positional relationship is formed between the support member and the limit part 50, the limit rod 522 of the limit part 50 is restrained inside the support member by the first limit groove 12, and the first limit groove 12 restrains the limit rod 522 to move only along the extending path of the groove; the supporting body 11 of the supporting member is limited inside by the second limiting groove 521 of the limiting portion 50, as shown in fig. 4, 5, 7 and 9, the supporting body 11 is limited between two vertically parallel plate bodies of the limiting portion 50, and in turn, the limiting portion 50 is limited to move only along the extending direction of the supporting member, so that on one hand, the moving path is more reliable, the problem of separation is not easy to occur, and the supporting body plays a better supporting role for the limiting portion 50.

The limiting portion 50 includes a socket plate 51, a sliding groove 52 surrounded by the socket plate 51, and a plurality of holes 53 penetrating through the socket plate 51, the socket plate 51 is sleeved outside the support member through the sliding groove 52, a first coaxial rotating shaft 23 is disposed at the axis of the first gear 21, a second coaxial rotating shaft 31 is disposed at the axis of the second gear 30, and the first rotating shaft 23 and the second rotating shaft 31 respectively penetrate through the different holes 53.

The second limiting groove 521 may be a part of the sliding groove 52, and a partition is further disposed in the sliding groove 52 to separate the second limiting groove 521, as shown in fig. 3, 4, 5, 7, and 9.

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

Further, the first guiding portion 40 includes a guiding groove 41, the slotting direction of the guiding groove 41 is arranged along the first preset track, the second guiding portion includes a guiding rod, the guiding rod is fixedly connected to the second gear 30, the guiding rod is inserted into the guiding groove 41, as shown in fig. 3, 5, 7 and 9, the second gear 30 is also limited by the guiding groove 41 during the process of meshing and rotating with the first gear 21, that is, the second rotating shaft 31 not only rotates simply, but also moves on a plane perpendicular to the second rotating shaft 31, the movement process is limited by the guiding groove 41 and the guiding rod at the same time, and is also limited by the limiting relationship between the limiting rod 522 and the first limiting groove 12, that is, the movement of the second gear 30 on the plane perpendicular to the second rotating shaft 31 is limited by the first preset track and the second preset track at the same time.

In this embodiment, the second predetermined track extends linearly in a direction away from the hinge base 10, specifically, the linear extending direction is parallel to the front-back direction, correspondingly, the socket plate 51 also moves along the front-back direction, the second rotating shaft 31 and the first rotating shaft 23 also move along the front-back direction, and the sliding groove 52 and the second limiting groove 521 are also arranged parallel to the front-back direction, so that the door 300 moves linearly forward or backward while rotating, and a technical effect of pushing the door 300 to move forward while rotating is achieved.

The box 200 includes a side wall 201, and since the embodiment is applied to the embedded hinge device 100, an axis of rotation of the door 300 is an axis of rotation of the first gear 21, that is, an axis of the first gear 21, in order to implement embedded installation, and reduce an amount of the door 300 extending out of a plane where the side wall 201 is located when rotating, the axis of the first gear 21 is within a vertical projection plane of the door 300, as shown in fig. 7, but if the door 300 directly rotates, a problem that a door seal of the door 300 is pressed against the box 200 may occur, and in order to avoid interference between the door seal and the box 200, the door 300 moves in a direction away from the box 200 while rotating.

The first gear 21 has a first limit position and a second limit position, in this embodiment, when the first gear 21 is at the first limit position, the door 300 is in a closed state, and the first gear 21 is closer to the box 200, and when the first gear 21 is at the second limit position, the door 300 is in an open state, and the first gear 21 is far from the box 200.

The guide slot 41 has a first end 411 and a second end 412; in the first extreme position, in the direction parallel to the second predetermined trajectory, the distance between the first gear 21 and the guide slot 41 is shorter than the second extreme position, and the guide rod is located at the first end 411; in the second extreme position, the guide bar is located at the second end 412; the first end 411 is farther than the second end 412 with respect to the first gear 21 in a direction parallel to the second preset trajectory. For convenience of description, the second predetermined trajectory is taken as the linear extension in the front-back direction. The first preset track formed between the first end 411 and the second end 412 has a component in the front-back direction, so that while the guide rod moves in the guide groove 41, the guide groove 41 has a tendency of pushing the guide rod to move forward, when the motion track of the guide rod moving from the first end 411 to the second end 412 includes the component of moving forward, the guide groove 41 also guides the second gear 30 and the first gear 21 to move forward, so as to guide the door body 300 to move forward, increase the amount of forward movement of the door body 300, and ensure that the door seal of the door body 300 does not interfere with the cabinet 200.

And, the guide slot 41 has a motion component with a speed in the parallel and front-back direction that is greater as the guide rod is closer to the first end 411, as shown in fig. 3, 5, 7, and 9, so that the guide rod has a greater component of forward motion when the door 300 is opened, which in turn pushes the first gear 21 forward faster, and a motion component in the front-back direction is smaller as the guide rod is closer to the second end 412 after the door 300 is opened by a certain angle.

Correspondingly, the door 300 moves forward faster in the initial stage of opening the door 300, i.e., during the movement from fig. 1 to fig. 6, and the forward movement is slower in the movement from fig. 6 to fig. 8 of the door 300, and even when the door 300 is opened by 90 °, the component speed of the movement of the door 300 in the front-rear direction may be 0. The arrangement enables the door body 300 to be away from the box body 200 as soon as possible when the door body is opened, and the door body moves to a position closer to the front, so that the door seal is not extruded, and the door body 300 cannot interfere with the box body 200 in the rotating process.

Further, the radius of the reference circle of the first gear 21 is defined as a first radius, the radius of the reference circle of the second gear 30 is defined as a second radius, the radius of curvature of the arc where the guide groove 41 is located is defined as a 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. Note that the length of the guide radius is L1, the distance from the guide rod to the axis of the second gear 30 is L2, the first radius is R1, and the second radius is R2, that is, R1 × L2> R2 × L1.

When the requirement of R1 × L2> R2 × L1 is satisfied, the door 300 can move forward faster in the initial opening stage, and in the later opening stage of the door 300, the movement of the door 300 in the front-back direction is reduced, and more is the rotational movement of the door 300.

Specifically, taking the approximate dimensions of R1 and L1 as an example, when the portions of L2 and R2 are mainly considered, as represented in the above-mentioned relation, i.e., L2> R2, when the linear velocity of the second gear 30 at the guide rod is greater than the linear velocity of the gear teeth at the pitch circle of the second gear 30, since the first gear 21 is meshed with the second gear 30, the linear velocity at the gear teeth of the first gear 21 is equal to the linear velocity at the gear teeth of the second gear 30. The linear velocity at the guide bar is greater than the linear velocity at the end of the first gear 21, i.e., the guide bar moves faster than the door body 300 rotates, i.e., the guide bar moves a longer amount when the first gear 21 moves a smaller amount. Since the motion of the guiding rod is provided by the first gear 21, when the user pulls the door 300, the door 300 is driven to move forward faster in the initial stage of opening, and the guiding rod has a motion component with a speed parallel to the front-back direction which is higher at the position closer to the first end 411 than the guiding groove 41, so that the door 300 can be pushed out more quickly.

In addition, the linear velocity at which the guide bar moves with respect to the center of the guide groove 41 is equal to the linear velocity at which the second gear 30 moves at the guide bar, so the product of the distance from the guide bar to the axial center of the second gear 30 and the angular velocity of the second gear 30 at the guide bar is the same as the product of the guide radius and the angular velocity at which the guide bar moves within the guide groove 41. And since 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 the same as 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 teeth at the reference circle of the guide bar and the second gear 30 are located on the second gear 30, the angular velocity of the second gear 30 at the guide bar is equal to the angular velocity of the teeth at the reference circle of the second gear 30, and when R1 × L2> R2 × L1 is combined with all the above relations, the speed of the guide bar moving in the guide groove 41 can be controlled to be greater than the speed of the first gear 21 rotating, so that the door 300 can be pushed forward more quickly when rotating.

Further, a preset gap 202 is arranged on one side, away from the box body 200, of the side wall 201, the door body 300 comprises a corner 301, away from the box body 200, the corner 301 is arranged on one side, close to the side wall 201, of the door body 300, and the distance from the axis of the first gear 21 to the corner 301 is smaller 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, as shown in fig. 7, the preset gap 202 is a gap between the refrigeration equipment and the side cabinet body 400, and when the condition is met, the door body 300 can be controlled not to collide with the side cabinet body 400 all the time in the opening process. The embedded refrigerator has different gap sizes between the refrigerator and the side cabinet 400 or the wall body under the requirements of different embedding grades, when the embedding grade is higher, the value of the preset gap 202 is smaller, for example, the maximum of the preset gap 202 of some required side surfaces is 30mm, when the embedding grade is higher, the value can be 20mm, and when the embedding grade is higher, the amount of the door body 300 which can extend outwards is smaller.

Compared with the prior art, the embodiment has the following beneficial effects:

this embedded hinge device 100 linkage portion and spacing portion 50's cooperation, it rotates when the orbit motion is predetermine along the second to realize rotation portion 20, refrigeration plant door body 300 that has realized embedded structure does not collide with the cabinet body 400 of box 200 and side when opening, this embedded hinge device 100 can be more flat for current hinge, the size is littleer, the space that occupies, the occupation of the space of reserving for the installation hinge has been reduced when the appearance is pleasing to the eye, refrigeration plant's volume rate of utilization has been improved.

It should be understood that although the specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it will be appreciated by those skilled in the art that the specification as a whole may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (11)

1. An embedded hinge device, comprising:

a hinge base including a first guide portion;

the rotating part comprises a first gear and a rotating body fixedly connected to the axle center of the first gear;

the linkage part comprises a second guide part and a second gear, the first guide part guides the second guide part to reciprocate along a first preset track, the second guide part is connected with the second gear, and the second gear is meshed with the first gear;

and the limiting part comprises a first limiting part and a second limiting part, the first limiting part is simultaneously rotatably connected with the axle center of the first gear and the axle center of the second gear, and the second limiting part limits the linkage part and/or the rotating part to do reciprocating motion along a second preset track.

2. The embedded hinge device as claimed in claim 1, wherein the hinge seat comprises a supporting member, the limiting portion comprises a sleeve member slidably connected to the supporting member, and the rotating portion is rotatably connected to the sleeve member at an axial center of the first gear.

3. The embedded hinge device as claimed in claim 2, wherein one of the second limiting member or the supporting member comprises a limiting slider and the other comprises a limiting groove, the limiting groove is disposed along a second predetermined track, and the limiting slider is inserted into the limiting groove.

4. The embedded hinge device as claimed in claim 3, wherein the supporting member comprises a supporting body and a first position-limiting groove disposed on the supporting body, the second position-limiting member comprises a second position-limiting groove and a plurality of position-limiting rods disposed in the second position-limiting 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 supporting body is always at least partially disposed in the second position-limiting groove, and at least a portion of the position-limiting rods is always disposed in the first position-limiting groove.

5. The embedded hinge device as claimed in claim 2, wherein the first limiting member, the second limiting member and the socket member are integrally formed.

6. The embedded hinge device as claimed in claim 5, wherein the position-limiting portion comprises a socket plate, a sliding groove surrounded by the socket plate, and a plurality of openings penetrating through the socket plate, the socket plate is sleeved outside the supporting member through the sliding groove, a first coaxial rotating shaft is disposed at an axis of the first gear, a second coaxial rotating shaft is disposed at an axis of the second gear, and the first rotating shaft and the second rotating shaft respectively pass through different openings.

7. The embedded hinge device as claimed in claim 1, wherein the first guide part includes a guide groove having a groove direction disposed along the first predetermined trajectory, and the second guide part includes a guide rod fixedly coupled to the second gear, the guide rod being inserted into the guide groove.

8. The embedded hinge device as claimed in claim 7, wherein the second predetermined track extends linearly away from the hinge base.

9. The embedded hinge device as claimed in claim 8, wherein the first gear has a first limit position and a second limit position, and the guide groove has a first end and a second end;

in the first limit position, in the direction parallel to the second preset track, the distance between the first gear and the guide groove is shorter than that of the second limit position, and the guide rod is positioned at the first end;

in the second extreme position, the guide rod is located at the second end;

the first end is farther from the second end relative to the first gear in a direction parallel to the second preset trajectory.

10. Refrigeration appliance, characterized in that it comprises an embedded hinge device according to any one of claims 1 to 9.

11. The refrigeration equipment according to claim 10, wherein the refrigeration equipment comprises a box body and a door body used for opening and closing the box body, the hinge seat is fixedly connected with the box body, the rotating body is fixedly connected with the door body, the box body comprises a side wall, a preset gap is arranged on one side of the side wall far away from the box body, the door body comprises a corner far away from the box body, the corner is arranged on one side of the door body close to the side wall, and the distance from the axis of the first gear to the corner is smaller 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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