WO2023010914A1 - Embedded hinge apparatus and refrigeration device - Google Patents

Abstract

An embedded hinge apparatus (100) and a refrigeration device. The embedded hinge apparatus (100) comprises a hinge base (10), a rotating part (20), a linkage part, and a limiting part. The linkage part is rotatably connected to the hinge base (10) and the rotating part (20) simultaneously, and the limiting part limits the linkage part and/or the rotating part (20) to reciprocate towards a preset trajectory. The embedded hinge apparatus (100) does not collide with a box body and a cabinet on the side when a door body is open, and is smaller in size, reduces the space reserved for the hinge, and improves the volume utilization rate of the refrigeration device.

Description

Embedded hinge device and refrigeration equipment technical field

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

Background technique

Embedded hinge devices generally have complex structures and take up a lot of space, which increases the thickness of the beam, and is inconvenient to install, poor in user experience, poor in aesthetics, and low in volume utilization. Many problems restrict the application of embedded hinges. It also makes the general price of refrigeration equipment with embedded hinges high, which affects the sales of refrigeration equipment.

In view of this, it is necessary to improve the existing embedded hinge device to solve the above problems.

Contents of the invention

In order to solve the problems in the prior art, the purpose of the present invention is to provide an embedded hinge device and a refrigeration device with the embedded hinge device.

In order to achieve the purpose of the above invention, an embodiment of the present invention provides an embedded hinge device, which includes:

hinge seat;

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

a linkage part, which includes a transmission part and a second gear, the transmission part is simultaneously rotatably connected to the hinge seat and the second gear, and the second gear meshes with the first gear;

The limiting part includes a first limiting part and a second limiting part, the first limiting part is connected to the shaft center of the first gear and the shaft center of the second gear in rotation at the same time, the first limiting part The two limiting members limit the reciprocating movement of the linkage part and/or the rotating part to a preset track.

As a further improvement of the present invention, the hinge seat includes a support, the limiting part includes a sleeve that is slidably connected to the support, and the rotating part is rotatably connected to the shaft center of the first gear. the socket.

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 preset track, and the limiting slider The block is inserted into the limiting slot.

As a further improvement of the present invention, the supporting member includes a supporting body and a first limiting groove provided on the supporting body, and the second limiting member includes a second limiting groove and is arranged on the second limiting groove. There are several limit rods in the slot, 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 The support body is always at least partially located in the second limiting groove, and at least part of the limiting rod is always located 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 part includes a socket plate, a sliding groove surrounded by the socket plate, and a plurality of openings penetrating through the socket plate, and the socket plate slides through the socket plate. The groove is sleeved on the outside of the support member, a coaxial first rotating shaft is arranged at the axis of the first gear, a coaxial second rotating shaft is arranged at the axis of the second gear, and the first rotating shaft and the The second rotating shafts pass through different openings respectively.

As a further improvement of the present invention, the transmission part includes a third rotating shaft, a fourth rotating shaft and a connecting rod, the connecting rod is rotatably connected to the hinge base through the third rotating shaft, and the connecting rod is The four rotating shafts are rotationally connected with the second gear.

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

As a further improvement of the present invention, the first gear has a first limit position and a second limit position. In the first limit position, the distance between the first gear and the third shaft is shorter than that of the second limit position. In the limit position, when the first gear is in the first limit position, the extension direction of the connecting rod is perpendicular to the preset track direction.

As a further improvement of the present invention, the radius of the pitch circle of the first gear is marked as the first radius, the radius of the pitch circle of the second gear is marked as the second radius, and the distance from the fourth shaft to the axis of the second gear is The product of the distance and the first radius is greater than the product of the distance from the third rotation axis to the fourth rotation axis and the second radius.

To achieve one of the objectives of the above invention, 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, 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, and the box body The body includes a side wall, and the side wall away from the side of the box body is provided with a preset gap, and the door body includes a corner far away from the box body, and the corner is arranged on the side of the door body close to the box body. On one side of the side wall, 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.

Compared with the prior art, the present invention has the following beneficial effects: the cooperation between the linkage part and the limit part of the embedded hinge device realizes the rotation of the rotating part while moving along the preset track, and realizes the refrigeration equipment with embedded structure When the door is opened, it does not collide with the cabinet and the side cabinet. Compared with the existing hinges, the embedded hinge device can be flatter, smaller in size, takes up less space, beautiful in appearance and reduces the preparatory work for installing the hinges. The occupancy of the reserved space improves the volume utilization rate of the refrigeration equipment.

Description of drawings

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

Fig. 2 is a schematic structural view of the hinge device when the door of the refrigeration equipment is closed according to an embodiment of the present invention;

Fig. 3 is an exploded view of a hinge device according to an embodiment of the present invention;

Fig. 4 is a cross-sectional view of the hinge device when the door of the refrigeration equipment is closed according to an embodiment of the present invention;

Fig. 5 is a top view when the door body of the refrigeration equipment is partially opened according to an embodiment of the present invention;

Fig. 6 is a partial enlarged view of place A in Fig. 5;

Fig. 7 is a schematic structural view of the refrigeration equipment door fully opened according to an embodiment of the present invention;

Fig. 8 is a cross-sectional view of the hinge device when the door of the refrigeration equipment is fully opened according to an embodiment of the present invention;

Among them, 100, hinge device; 200, box body; 201, side wall; 202, preset clearance; 300, door body; 301, corner; 400, cabinet body; 10, hinge seat; 11, support body; 12, 20, rotating part; 21, first gear; 22, rotating body; 23, first rotating shaft; 30, second gear; 31, second rotating shaft; 40, transmission part; 41, connecting rod; 42, the third rotating shaft; 43, the fourth rotating shaft; 50, the limiting part; 51, the sleeve plate; 52, the sliding groove; 521, the second limiting groove;

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

It should be understood that terms such as "on", "above", "below", "below", etc. used herein to indicate relative spatial positions are for convenience of description to describe the relative position of an element or feature as shown in the drawings. A relationship to another element or feature. The terms of spatial relative position 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 with the embedded hinge device, the embedded hinge device is used to realize the embedded installation of the equipment, especially for the embedded installation of the refrigeration The technical effect of convenience and beautiful appearance.

The refrigerating equipment of this embodiment can be set as a variety of refrigerating equipment such as refrigerators, wine cabinets, freezers, and freezers, and is especially suitable for refrigerators, and is more suitable for embedded refrigerators. The side of the refrigerator can be close to the wall or cabinet. Body 400, the refrigerator includes a box body 200, a door body 300, and the embedded hinge device 100 of this embodiment, the door body 300 of the embedded refrigerator can be flush with the outer surface of the side cabinet body 400, forming an aesthetically pleasing whole. The door body 300 is rotatably connected to the box body 200 through the embedded hinge device 100 for opening and closing the box body 200 .

In addition, the embedded hinge device 100 can also be used in other equipment, as long as the equipment has a body and a door 300 that can be opened or closed relative to the body. The built-in hinge device 100 is used to connect the body of the device and the door body 300, and realize that the door body 300 can be opened or closed at a certain angle relative to the body, and at the same time make it possible to install the device in a built-in form, such as a built-in microwave oven , built-in dishwasher, built-in oven and more.

In order to clearly express the position and direction described in this embodiment, in this embodiment, the opening direction of the door body 300 is defined as front, and the reverse direction is defined as rear. The direction of gravity can be defined as down, and the reverse direction is defined as Above, the user stands in front of the refrigerator, and the two sides facing the refrigerator are the left and right sides respectively. In Figs.

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 on the top of the door body 300. below. Wherein, the connection structure between the upper embedded hinge device 100 and the lower embedded hinge device 100 and the door body 300 and the box body 200 is symmetrically arranged, and the other difference between the upper embedded hinge device 100 and the lower embedded hinge device 100 is that in Under the force, the lower embedded hinge device 100 also supports the gravity of the door body 300 , but its structure is the same as that of the upper embedded hinge device 100 . The above-mentioned embedded hinge device 100 is described in detail below as an example. Refer to the installation position of the hinge device 100 in FIGS.

An embedded hinge device 100 of this embodiment includes a hinge base 10, a rotating part 20, a linkage part and a limiting part 50, wherein the hinge base 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 of the door body 300 and the movement mode of flipping and opening, so as to ensure that the door body 300 will not squeeze the cabinet body 200 or collide with the side wall or cabinet body 400 during the opening process.

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, referring to It is different from the eccentric movement, the rotation axis of the rotating body 22 coincides with the rotation axis of the first gear 21 , and the rotational angular speed of the rotating body 22 and the first gear 21 are also consistent.

The linkage part includes a transmission part 40 and a second gear 30. The transmission part 40 is connected to the hinge base 10 and the second gear 30 in rotation at the same time. The second gear 30 meshes with the first gear 21. The function of the transmission part 40 is to give the second gear 30 One degree of freedom is added so that the second gear 30 can also move on a plane perpendicular to the axis of rotation of the second gear 30 while rotating. The hinge seat 10 plays a role of supporting and fixing. As shown in Figure 3, none of them is a complete gear. By controlling its size and transmission ratio, the rotation angle can not reach 360°, and the coverage of the teeth on the gear can be guaranteed to be always meshed within the rotation range.

The limiter 50 includes a first limiter and a second limiter, the first limiter is simultaneously connected to the axis of the first gear 21 and the axis of the second gear 30, and the second limiter limits the linkage portion And/or the rotating part 20 reciprocates to a preset track. On the one hand, the first limiting member ensures that the first gear 21 and the second gear 30 are always meshed, and at the same time plays a role in tightening the first gear 21 and preventing the first gear 21 from moving away from the second gear 30 . The second limiting member is mainly used to guide the first gear 21 to move along the preset track, so as to achieve the purpose of pulling the second gear 30 to move according to the expected planning path.

In Fig. 1, the door body 300 is in a closed state. At this time, the embedded hinge device 100 is shown in Fig. 2 or 4. When the door body 300 is opened at a certain angle, such as about 45°, as shown in Fig. Type hinge device 100 as shown in Figure 6, when the door body 300 opens a larger angle, such as about 90 °, as shown in Figure 7, the hinge device 100 is now as shown in Figure 8.

Further, the hinge base 10 includes a support, the limiting portion 50 includes a socket that is slidably connected to the support, and the rotating portion 20 is rotatably connected to the socket at the axis of the first gear 21 . For the lower embedded hinge device 100, it needs to bear the gravity 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 gravity of the door body 300 acts on the rotating part 20. The part 20 is rotatably connected to the socket at the axis of the first gear 21, so that the socket bears the weight of the door body 300, and the socket is slidably connected with the support, so that the support bears the role of supporting the door 300.

In this embodiment, the first limiter, the second limiter, and the sleeve are integrally formed, and the three together form the structure shown in Figure 2 or 3, and in the structure of the upper limiter 50 in the figure, simultaneously realize Relatively fixing the first gear 21 and the second gear 30 , supporting the door body 300 , and guiding the linkage part and/or the rotating part 20 to move along a preset track.

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

In another embodiment, as shown in Figures 2, 4, 6, and 8, 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. The slot 521 and the 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 socket, the following discussion will be combined with the accompanying drawings , taking it as a whole limiting portion 50 for illustration.

The first gear 21 has a first limit position and a second limit position, and these two limit positions correspond to the two limit positions corresponding to the door body 300 closing and the door body 300 opening the maximum angle at the same time, which can be adjusted between the door body 300 and the box body 200 A stop device is installed between them to limit the maximum angle of rotation of the door body 300 . Between the first limit position and the second limit position, the first gear 21 is always in mesh with the second gear 30 .

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 limiting groove 521, and at least part of the limiting rod 522 is always located in the first limiting groove 12 Inside, the support member and the limiting part 50 form a mutual nested positional relationship, the limiting rod 522 of the limiting part 50 is constrained inside by the first limiting groove 12 of the supporting member, and the first limiting groove 12 constrains The limit rod 522 can only move along the extension path of the groove; the support body 11 of the support is restricted inside by the second limit groove 521 of the limit part 50, as shown in Figures 4, 6 and 8, the support body 11 is constrained between the two vertically parallel plates of the limiting part 50, which in turn restricts the limiting part 50 to move only along the extension direction of the support, so that the movement path is more reliable on the one hand, and it is not easy to produce a detachment. problems, and provide better support for the limiting portion 50 .

The limiting part 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 through the sliding groove 52. A coaxial first rotating shaft 23 is arranged at the axial center of a gear 21, and a coaxial second rotating shaft 31 is arranged at the axial center of the second gear 30, and the first rotating shaft 23 and the second rotating shaft 31 respectively pass through different openings 53 .

The above-mentioned second limiting groove 521 may be a part of the sliding groove 52 , and a partition is provided in the sliding groove 52 to separate the second limiting groove 521 , as shown in FIGS. 3 , 4 , 6 and 8 .

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

Further, the transmission part 40 includes a third rotating shaft 42, a fourth rotating shaft 43 and a connecting rod 41. As shown in FIG. 43 is rotationally connected with the second gear 30, and the connecting rod 41 swings around the hinge base 10. During the swinging process, it pushes the second gear 30 to move forward or backward, and indirectly pushes the first gear 21 and the door body 300 moves forward or backward, which has the technical effect of pushing the door body 300 to rotate and move forward at the same time.

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 realize embedded installation , to reduce the amount that the door body 300 protrudes from the plane where the side wall 201 is located when the door body 300 is rotated. There will be a problem that the door seal of the door body 300 is 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 forward while rotating.

In this embodiment, the preset track extends linearly away from the hinge base 10, specifically, the straight line extending direction is parallel to the front-rear direction, correspondingly, the socket plate 51 also moves along the front-rear direction, the second rotating shaft 31 and the second rotating shaft 31 A rotating shaft 23 also moves along the front-back direction, and the sliding slot 52 and the second limiting slot 521 are also arranged parallel to the front-back direction, so that the door body 300 moves straight forward while rotating.

The first gear 21 has a first limit position and a second limit position. In the first limit position, the distance between the first gear 21 and the third rotating shaft 42 is shorter than the second limit position. In this embodiment, when the first gear 21 is in the At the first limit position, the door body 300 is in a closed state, and at this time the first gear 21 is closer to the box body 200; when the first gear 21 is at the second limit position, the door body 300 is in an open state, and the first gear 21 away from the box 200.

When the first gear 21 is at the first extreme position, the extension direction of the connecting rod 41 is perpendicular to the preset track direction. Since the preset track direction is the front-to-back direction, when the door body 300 is in the closed state, the extending direction of the connecting rod 41 is perpendicular to the front-to-back direction, that is, parallel to the left-right direction. In this state, when the door body 300 is opened, the rotation direction of the connecting rod 41 is forward movement. At this time, the movement component of the front and rear direction of the movement of the connecting rod 41 is greater than the movement component of the front and rear direction of the connecting rod 41 in other positions. , especially greater than the movement component in the front-back direction when the connecting rod 41 is parallel to the front-back direction.

More directly, at this time, the connecting rod 41 is parallel to the left and right directions when the door is closed, so that when the door body 300 is opened, the fourth rotating shaft 43 moves forward faster. During the movement process of Fig. 1 to Fig. 5, the speed of moving forward of the door body 300 is faster, when the speed of moving forward of the door body 300 in Fig. 5 to Fig. 7 is slowed down, even when the door body 300 is opened When the angle is 90°, the component velocity of the door body 300 moving in the forward and backward directions is 0. When the door body 300 is opened, move away from the box body 200 as soon as possible and move to a position closer to the front, so as to ensure that the door seal is not squeezed, and the door body 300 will not interfere with the box body 200 during rotation.

Furthermore, the radius of the pitch circle of the first gear 21 is marked as the first radius, the radius of the pitch circle of the second gear 30 is marked as the second radius, and the distance from the fourth rotating shaft 43 to the axis center of the second gear 30 is equal to The product of the first radius is greater than the product of the distance from the third rotation axis 42 to the fourth rotation axis 43 and the second radius. Note that the distance from the third rotating shaft 42 to the fourth rotating shaft 43 is L1, the distance from the fourth rotating shaft 43 to the axis center of the second gear 30 is L2, the first radius is R1, and the second radius is R2, that is to say, R1*L2 >R2*L1.

When R1*L2>R2*L1 is satisfied, the door body 300 can move forward faster at the initial stage of opening, while at the later stage of door body 300 opening, the movement of the door body 300 in the front and rear direction is reduced, and more of the door body 300 rotation movement.

Specifically, in one embodiment, since the size of the hinge itself is not large, the sizes of R1 and L1 are similar. At this time, the part of L2 and R2 is mainly considered, which is reflected in the above relational formula, that is, L2>R2. At this time , the linear velocity of the second gear 30 at the fourth rotating shaft 43 is greater than the linear velocity of the teeth at the index circle of the second gear 30, because the fourth rotating shaft 43 is connected with the second gear 30 and the connecting rod 41 at the same time, the first The gear 21 meshes with the second gear 30, so the linear velocity at the end of the connecting rod 41 is equal to the linear velocity of the second gear 30 at the fourth rotating shaft 43, and the linear velocity at the gear teeth of the first gear 21 is equal to that of the second gear 30. The linear velocity at the gear teeth, that is, the linear velocity at the end of the connecting rod 41 is greater than the linear velocity at the end of the first gear 21. Since the dimensions of R1 and L1 are similar, the angular velocity of the connecting rod 41 is greater than that of the first gear 21 The angular velocity, that is to say, the connecting rod 41 rotates faster than the door body 300, and the initial state of the connecting rod 41 is parallel to the left-right direction, so the door body 300 can be pushed out faster.

In addition, the linear velocity at the end of the above-mentioned connecting rod 41 is equal to the linear velocity of the second gear 30 at the fourth rotating shaft 43, so the distance from the fourth rotating shaft 43 to the axis center of the second gear 30 is the same as that of the second gear 30 at the fourth rotating shaft. The product of the angular velocity at the rotation axis 43 is the same as the product of the distance from the third rotation axis 42 to the fourth rotation axis 43 and the angular velocity of the connecting rod 41 at the fourth rotation axis 43 . And because the linear velocity at the gear tooth place of the first gear 21 is equal to the linear velocity at the gear tooth place of the second gear 30, so the product of the angular velocity of the second radius and the second gear 30 at the pitch circle place of the gear teeth, and the first gear tooth The product of a radius and the angular velocity of the first gear wheel 21 at the pitch circle of the teeth is the same. In addition, since the fourth shaft 43 and the teeth at the pitch circle of the second gear 30 are all located on the second gear 30, the angular velocity of the second gear 30 at the fourth shaft 43 is equal to that of the second gear 30 at the pitch circle. The angular velocity of the gear teeth, combined with all the above-mentioned relationships, when R1*L2>R2*L1, can control the angular velocity of the connecting rod 41 at the third rotating shaft 42 to be greater than the angular velocity of the first gear 21 to realize the rotation of the door body 300 , is pushed forward faster.

Further, the side wall 201 is provided with a preset gap 202 on the side 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, the second The distance from the axis center of a gear 21 to the corner 301 is less than the sum of the distance from the axis center of the first gear 21 to the side wall 201 and the thickness of the preset gap 202, as shown in Figure 6, the preset gap 202 is the refrigeration equipment When the gap between the door body 300 and the side cabinet body 400 is satisfied, the door body 300 can be controlled not to collide with the side cabinet body 400 during the opening process. For embedded refrigerators, the gap between the refrigerator and the side cabinet 400 or the wall is different under the requirements of different embedded levels. When the embedded level is higher, the value of the preset gap 202 is smaller. For example, some requirements The maximum preset gap 202 on the side is 30 mm, and can be 20 mm when the embedded level is higher, and the door body 300 can protrude less outwardly when the embedded level is higher.

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

The cooperation between the linkage part of the embedded hinge device 100 and the limit part 50 realizes the rotation of the rotating part 20 while moving along the preset trajectory, and realizes that the door 300 of the refrigeration equipment of the embedded structure does not come into contact with the box body 200 and the box body 200 when it is opened. When the side cabinet 400 collides, the embedded hinge device 100 can be flatter than the existing hinge, smaller in size, takes up less space, and has a beautiful appearance while reducing the occupation of the space reserved for installing the hinge, improving The volume utilization rate of the refrigeration equipment.

It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for feasible implementations of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation or implementation that does not depart from the technical spirit of the present invention All changes should be included within the protection scope of the present invention.

Claims (12)

1. An embedded hinge device is characterized in that it comprises:

   hinge seat;

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

   a linkage part, which includes a transmission part and a second gear, the transmission part is simultaneously rotatably connected to the hinge seat and the second gear, and the second gear meshes with the first gear;

   The limiting part includes a first limiting part and a second limiting part, the first limiting part is connected to the shaft center of the first gear and the shaft center of the second gear in rotation at the same time, the first limiting part The two limiting members limit the reciprocating movement of the linkage part and/or the rotating part to a preset track.
2. The embedded hinge device according to claim 1, wherein the hinge seat includes a support, the limiting part includes a sleeve that is slidably connected to the support, and the rotating part is connected to the second hinge. The shaft center of a gear is rotatably connected to the sleeve.
3. The embedded hinge device according to claim 2, wherein one of the second limiting member or the supporting member includes a limiting slider, and the other includes a limiting groove, and the limiting groove is along the predetermined If the track is set, the limit slider is inserted into the limit slot.
4. The embedded hinge device according to claim 3, wherein the supporting member comprises a supporting body and a first limiting groove provided on the supporting body, and the second limiting member comprises a second limiting groove. slot and several limit rods arranged in the second limit slot, the first gear has a first limit position and a second limit position, when the first gear is in the first limit position and the second limit position When rotating between the two limit positions, the support body is always at least partially located in the second limiting groove, and at least part of the limiting rod is always located in the first limiting groove.
5. The embedded hinge device according to claim 2, characterized in that, the first limiting member, the second limiting member, and the socket member are integrally formed.
6. The embedded hinge device according to claim 5, wherein the limiting part comprises 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 arranged at the axis of the first gear, and a coaxial first rotating shaft is arranged at the axis of the second gear. Two rotating shafts, the first rotating shaft and the second rotating shaft pass through different openings respectively.
7. The embedded hinge device according to claim 1, wherein the transmission part includes a third rotating shaft, a fourth rotating shaft and a connecting rod, and the connecting rod is rotatably connected to the hinge seat through the third rotating shaft, And the connecting rod is rotationally connected with the second gear through the fourth rotating shaft.
8. The built-in hinge device according to claim 7, characterized in that, the preset track extends linearly in a direction away from the hinge seat.
9. The embedded hinge device according to claim 8, wherein the first gear has a first extreme position and a second extreme position, and at the first extreme position, the first gear and the third The distance of the rotating shaft is shorter than the second limit position, and when the first gear is at the first limit position, the extension direction of the connecting rod is perpendicular to the preset track direction.
10. The embedded hinge device according to claim 9, characterized in that, the radius of the pitch circle of the first gear is recorded as the first radius, the radius of the pitch circle of the second gear is recorded as the second radius, and the fourth The product of the distance from the rotating shaft to the shaft center of the second gear and the first radius is greater than the product of the distance from the third rotating shaft to the fourth rotating shaft and the second radius.
11. A refrigeration device, characterized in that it comprises the embedded hinge device according to claim 1.
12. The refrigeration equipment according to claim 11, characterized in that it comprises a box body and a door body for opening and closing the box body, the hinge base is fixedly connected to the box body, and the rotating body is fixedly connected to the The door body, the box body includes a side wall, a preset gap is set on the side wall away from the box body, the door body includes a corner far away from the box body, and the corner is set at The side of the door close to the side wall, the distance from the axis of the first gear to the corner is smaller than the distance from the axis of the first gear to the side wall and the preset clearance the sum of the thicknesses.

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