Hinge device and refrigeration equipment

Abstract

The invention provides a hinge device and refrigeration equipment, and the hinge device comprises a fixed hinge part, a movable hinge part which is rotatably connected to the fixed hinge part around a preset axis, and a first guide assembly and a second guide assembly which are arranged between the fixed hinge part and the movable hinge part, the first guide assembly comprises a first hinge groove and a first hinge shaft which are matched with each other, the second guide assembly comprises a second hinge groove and a second hinge shaft which are matched with each other, and the first hinge groove and the second hinge groove are arc grooves with the point located on the preset axis as the circle center; according to the hinge device, shaft sleeves can be omitted, the situation that the shaft sleeves occupy the thickness of the door body is avoided, the hinge shafts are arranged, the stability of the hinge device is improved, meanwhile, when the wiring holes need to be formed in the hinge device, the hole diameters of the wiring holes can be increased, and the number of pipelines capable of wiring through the wiring holes can be increased; and the wiring requirement of the existing refrigeration equipment with the door body provided with the functional module is met.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to a hinge device and a refrigeration equipment having the hinge device. Background Art

[0002] Refrigeration equipment is a device that stores food in a low-temperature environment. Depending on the needs of food preservation, it is stored in a frozen or refrigerated manner to achieve the purpose of keeping food fresh.

[0003] Existing refrigeration equipment, such as refrigerators, generally includes a box body and a door body. The box body is provided with a hinge shaft, and the door body is provided with a shaft sleeve that matches the hinge shaft, and the door body is connected to the box body by rotating around a fixed axis through the cooperation between the hinge shaft and the shaft sleeve. However, based on the thickness of the door body, especially the ultra-thin door body, the space for setting the sleeve is limited, which will lead to the limitation of the diameter setting of the hinge shaft. On the one hand, it affects the strength of the hinge shaft, and the hinge shaft is easy to break, which affects the quality and use of the refrigeration equipment; on the other hand, for refrigeration equipment with some functional modules (such as ice water module, touch module, etc.) arranged on the door body, wiring is usually achieved through the hinge shaft, that is, the hinge shaft is provided with wiring holes that penetrate through the up and down directions, and the pipelines led out from the box body pass through the wiring holes and extend into the door body to connect with the functional modules on the door body. The limited diameter of the hinge shaft leads to the limited aperture of the wiring hole, resulting in a small number of pipelines that can pass through the wiring hole, which cannot meet the wiring requirements of existing refrigeration equipment, or there are many pipelines in the wiring hole, which is crowded and easily leads to friction and wear between the pipelines, thereby reducing the service life of the pipeline. Summary of the invention

[0004] The invention provides a hinge device and a refrigeration device having the hinge device.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the present invention is as follows: a hinge device, including a fixed hinge part fixed to a box body and a movable hinge part fixed to a door body, the movable hinge part is rotatably connected to the fixed hinge part around a preset axis; the hinge device also includes a first guide component and a second guide component arranged between the fixed hinge part and the movable hinge part, the first guide component includes a first hinge groove arranged on one of the fixed hinge part and the movable hinge part, and a first hinge shaft arranged on the other and located in the first hinge groove; the second guide component includes a second hinge groove arranged on one of the fixed hinge part and the movable hinge part, and a second hinge shaft arranged on the other and located in the second hinge groove, the first hinge groove and the second hinge groove are both arc grooves with a point located on the preset axis as the center; when the movable hinge part rotates relative to the fixed hinge part, the first hinge shaft moves in the first hinge groove, and at the same time, the second hinge shaft moves in the second hinge groove.

[0006] As a further improvement of the present invention, the projections of the first hinge slot and the second hinge slot on a preset plane perpendicular to the preset axis are symmetrical about the center of the intersection of the preset axis and the preset plane.

[0007] As a further improvement of the present invention, one of the fixed hinge and the movable hinge is provided with a first hinge groove, and the other is also provided with a third hinge groove, the third hinge groove is an arc groove with a point located on the preset axis as the center, one end of the first hinge shaft is movably connected to the first hinge groove, and the other end is movably connected to the third hinge groove, the first hinge groove has a first starting end, and the third hinge groove has a third starting end, when the movable hinge is in a closed state, one end of the first hinge shaft is located at the first starting end, and the other end is located at the third starting end, and the extension direction of the first hinge groove from the first starting end is the same as the extension direction of the third hinge groove from the third starting end. The second hinge slot is provided on one of the fixed hinge component and the movable hinge component, and the other is also provided with a fourth hinge slot, the fourth hinge slot is an arc slot with a point on the preset axis as the center, one end of the second hinge shaft is movably connected in the second hinge slot, and the other end is movably connected in the fourth hinge slot, the second hinge slot has a second starting end, and the fourth hinge slot has a fourth starting end, when the movable hinge component is in a closed state, one end of the second hinge shaft is located at the second starting end, and the other end is located at the fourth starting end, and the extension direction of the second hinge slot from the second starting end is opposite to the extension direction of the fourth hinge slot from the fourth starting end.

[0008] As a further improvement of the present invention, the hinge device has a relative rotating end and a free end, with the arrangement direction of the rotating end and the free end as the horizontal direction, and two hinge grooves among the first hinge groove, the second hinge groove, the third hinge groove, and the fourth hinge groove are arranged on the movable hinge component and are located on opposite sides of a preset axis in the horizontal direction; two hinge grooves among the first hinge groove, the second hinge groove, the third hinge groove, and the fourth hinge groove are arranged on the fixed hinge component and are located on opposite sides of a preset axis in the horizontal direction.

[0009] As a further improvement of the present invention, the first hinge groove has a first terminal end opposite to the first starting end, and when the movable hinge is in a closed state, the third starting end is located on the side of the first starting end facing the first terminal end, and the first hinge axis includes a first vertical section movably connected to the first hinge groove, a second vertical section movably connected to the third hinge groove, and a first horizontal section connecting the first vertical section and the second vertical section.

[0010] As a further improvement of the present invention, the second hinge groove has a second terminal opposite to the second starting end, and when the movable hinge is in a closed state, the fourth starting end is located on the side of the second starting end facing the second terminal, and the second hinge axis includes a third vertical section movably connected to the second hinge groove, a fourth vertical section movably connected to the fourth hinge groove, and a second horizontal section connecting the third vertical section and the fourth vertical section.

[0011] As a further improvement of the present invention, a first limiting protrusion is protruding from the first hinge groove to limit the first hinge axis at the first starting end, and a second limiting protrusion is protruding from the second hinge groove to limit the second hinge axis at the second starting end; or a third limiting protrusion is protruding from the third hinge groove to limit the first hinge axis at the third starting end, and a fourth limiting protrusion is protruding from the fourth hinge groove to limit the second hinge axis at the fourth starting end.

[0012] As a further improvement of the present invention, the projections of the third hinge slot and the fourth hinge slot on a preset plane perpendicular to the preset axis are symmetrical about the center of intersection of the preset axis and the preset plane.

[0013] As a further improvement of the present invention, the hinge grooves among the first hinge groove, the second hinge groove, the third hinge groove and the fourth hinge groove arranged on the fixed hinge component are through grooves arranged through the fixed hinge component, and a section of the first hinge shaft and the second hinge shaft that cooperate with the through grooves is provided with a limiting portion that limits the movement of the first hinge shaft and the second hinge shaft along the depth direction of the through groove.

[0014] As a further improvement of the present invention, the first hinge slot and the second hinge slot are both arranged on the fixed hinge component; or the first hinge slot and the second hinge slot are both arranged on the movable hinge component.

[0015] As a further improvement of the present invention, a wiring hole is provided through the fixed hinge and the movable hinge, and the wiring hole is a circular hole with a point on the preset axis as the center.

[0016] In order to achieve the above-mentioned purpose of the invention, the present invention also provides a refrigeration device, including a box body, a door body, and the above-mentioned hinge device connected between the box body and the door body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the hinge device in the present invention realizes that the movable hinge part rotates around a preset axis and is connected to the fixed hinge part by using the first guide component and the second guide component instead of the existing cooperation mode of the hinge shaft and the sleeve, and the setting of the sleeve can be eliminated to avoid the sleeve occupying the thickness of the door body. When a wiring hole needs to be set on the hinge device, the aperture of the wiring hole can also be increased, and the number of pipelines that can be routed through the wiring hole is increased, thereby meeting the wiring requirements of the existing refrigeration equipment with functional modules in the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a refrigeration device in a specific embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of the hinge device;

[0020] Figure 3 yes Figure 2 Exploded view of the hinge assembly in the . DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the following will be combined with the attached specific embodiments of the present invention. Figures 1 to 3 , a clear and complete description of the technical solutions in the embodiments of the present invention is given. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] In various drawings of the present invention, for the convenience of illustration, some sizes of structures or parts are exaggerated relative to other structures or parts, and thus, only the basic structure of the subject matter of the present invention is illustrated.

[0023] In addition, the words expressing position and direction described in the present invention are used as a reference when the refrigerator is in normal use. The terms first, second, third, fourth, etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated; in addition, it should be noted that unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, the connection can be a direct connection or an indirect connection through an intermediate medium, and it can be a fixed connection or a movable connection or a detachable connection or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figure 1 to Figure 3As shown, the present invention provides a hinge device 10 and a refrigeration device 100 having the hinge device 10. The refrigeration device 100 includes a box body 30, a door body 20, and a hinge device 10 for rotatably connecting the door body 20 to the box body 30.

[0025] Of course, it is understandable that the hinge device 10 in the present invention is not limited to being used in the refrigeration device 100, but can also be used in other furniture such as wardrobes or in other household appliances such as microwave ovens.

[0026] The hinge device 10 includes a fixed hinge 1 fixed to a box body 30, a movable hinge 2 fixed to a door body 20, a first guide assembly 3 and a second guide assembly 4 provided between the fixed hinge 1 and the movable hinge 2. The movable hinge 2 is rotatably connected to the fixed hinge 1 around a preset axis L through the first guide assembly 3 and the second guide assembly 4, so that the door body 20 is rotatably connected to the box body 30 around the fixed preset axis L, so that the door body 20 can be opened and closed by rotating the door body 20.

[0027] It is known that the door body 20 and the movable hinge 2 rotate synchronously. When the door body 20 is in a closed state, the movable hinge 2 is defined to be in a closed state. When the door body 20 is in an open state, the movable hinge 2 is defined to be in an open state.

[0028] Specifically, the first guide component 3 includes a first hinge groove 31 provided on one of the fixed hinge 1 and the movable hinge 2, and a first hinge shaft 32 provided on the other and located in the first hinge groove 31. The second guide component 4 includes a second hinge groove 41 provided on one of the fixed hinge 1 and the movable hinge 2, and a second hinge shaft 42 provided on the other and located in the second hinge groove 41. The first hinge groove 31 and the second hinge groove 41 are both arc grooves with a point on the preset axis L as the center. When the movable hinge 2 rotates relative to the fixed hinge 1, the first hinge shaft 32 moves in the first hinge groove 31, and at the same time, the second hinge shaft 42 moves in the second hinge groove 41. It can be known that the first hinge groove 31 and the second hinge groove 41 are both circumferential arc grooves around the preset axis L. Therefore, when the movable hinge 2 rotates relative to the fixed hinge 1, the first hinge shaft 32 moves in the first hinge groove 31, and the second hinge shaft 42 moves in the second hinge groove 41, which can drive the movable hinge 2 to rotate around the preset axis L, thereby driving the door body 20 to rotate around the preset axis L. At the same time, by simultaneously providing the first guide component 3 and the second guide component 4, the two guide components can play a role of mutual limitation, so that when the door body 20 rotates, the first hinge shaft 32 can move in the first hinge groove 31 according to the preset trajectory, and the second hinge shaft 42 can move in the second hinge groove 41 according to the preset trajectory, thereby avoiding shaking of the door body 20 and improving the stability of the rotation of the door body 20.

[0029] Specifically, the first hinge slot 31 has a first starting end A1 and a first terminal B1 opposite to the first starting end A1, and the second hinge slot 41 has a second starting end A2 and a second terminal B2 opposite to the second starting end A2. When the movable hinge 2 is in a closed state, that is, when the door body 20 is in a closed state, the first hinge shaft 32 is located at the first starting end A1, and the second hinge shaft 42 is located at the second starting end A2. When the door body 20 is rotated to open, the first hinge shaft 32 moves along the first hinge slot 31 toward the first terminal B1, and at the same time, the second hinge shaft 42 moves along the second hinge slot 41 toward the second terminal B2.

[0030] In a specific embodiment, the first hinge groove 31 and the second hinge groove 41 are both arranged on the fixed hinge component 1, and the first hinge axis 32 and the second hinge axis 42 are both arranged on the movable hinge component 2. At this time, along the circumference of the preset axis L, the extension direction of the first starting end A1 toward the first terminal B1 is the same as the extension direction of the second starting end A2 toward the second terminal B2, and both are the directions in which the door body 20 rotates to open. Of course, this is not limited to this. In other embodiments, the first hinge slot 31 and the second hinge slot 41 can be both arranged on the movable hinge 2, and the first hinge axis 32 and the second hinge axis 42 can be both arranged on the fixed hinge 1; or, the first hinge slot 31 and the second hinge slot 41 are respectively arranged on the fixed hinge 1 and the movable hinge 2, and correspondingly, the first hinge axis 32 and the second hinge axis 42 are also respectively arranged on the fixed hinge 1 and the movable hinge 2. At this time, the first hinge slot 31 and the second hinge slot 41 can be correspondingly arranged along the circumferential extension direction of the preset axis L.

[0031] In a specific embodiment, the projections of the first hinge slot 31 and the second hinge slot 41 on the preset plane perpendicular to the preset axis L are symmetrical about the center of the intersection of the preset axis L and the preset plane, so that the force of the fixed hinge 1 is relatively stable, and the stability of the rotation of the door body 20 is improved. It can be seen that in the embodiment in which the first hinge slot 31 and the second hinge slot 41 are both arranged on the fixed hinge 1, it means that the first hinge slot 31 and the second hinge slot 41 are symmetrical about the center of the intersection of the preset axis L and the fixed hinge 1. Of course, it is not limited to this. In other embodiments, the first hinge slot 31 and the second hinge slot 41 may not be arranged to be symmetrical, as long as the first hinge slot 31 and the second hinge slot 41 are arranged at intervals on the circumference of the preset axis L, such as the distances of the first hinge slot 31 and the second hinge slot 41 from the preset axis L can be set to be different, or the first hinge slot 31 and the second hinge slot 41 are arranged on the same side of the preset axis L, etc.

[0032] Furthermore, the fixed hinge 1 and the movable hinge 2 are provided with a wiring hole 5, and the wiring hole 5 is a circular hole with a point on the preset axis L as the center. The pipelines drawn out from the box 30 enter the door body 20 through the wiring holes 5 of the fixed hinge 1 and the movable hinge 2 in turn, so as to be connected with each functional module in the door body 20. In the present invention, the door body 20 is connected to the box body 30 by rotating around the preset axis L through the first guide component 3 and the second guide component 4, and the setting of the shaft sleeve can be eliminated, thereby avoiding the shaft sleeve from occupying the thickness of the door body, and the diameter of the wiring hole 5 can be increased, and the number of pipelines that can be routed through the wiring hole 5 can be increased, so as to meet the wiring requirements of the existing door body 20 with functional modules.

[0033] It can be known that the first hinge slot 31 and the second hinge slot 41 are both located on the peripheral side of the wiring hole 5 .

[0034] Furthermore, one of the fixed hinge component 1 and the movable hinge component 2 is provided with a first hinge groove 31, and the other is also provided with a third hinge groove 33. The third hinge groove 33 is an arc groove with a point located on the preset axis L as the center. One end of the first hinge shaft 32 is movably connected in the first hinge groove 31, and the other end is movably connected in the third hinge groove 33. The third hinge groove 33 has a third starting end A3. When the movable hinge component 2 is in a closed state, one end of the first hinge shaft 32 is located at the first starting end A1, and the other end is located at the third starting end A3. The extension direction of the first hinge groove 31 from the first starting end A1 is opposite to the extension direction of the third hinge groove 33 from the third starting end A3. Correspondingly, one of the fixed hinge component 1 and the movable hinge component 2 is provided with a second hinge groove 41, and the other is also provided with a fourth hinge groove 43. The fourth hinge groove 43 is an arc groove with a point located on the preset axis L as the center. One end of the second hinge shaft 42 is movably connected in the second hinge groove 41, and the other end is movably connected in the fourth hinge groove 43. The fourth hinge groove 43 has a fourth starting end A4. When the movable hinge component 2 is in a closed state, one end of the second hinge shaft 42 is located at the second starting end A2, and the other end is located at the fourth starting end A4. The extension direction of the second hinge groove 41 from the second starting end A2 is opposite to the extension direction of the fourth hinge groove 43 from the fourth starting end A4. When the door body 20 is rotated to open, the first hinge shaft 32 has a moving path of the first hinge slot 31 and the third hinge slot 33, and the second hinge shaft 42 has a moving path of the second hinge slot 41 and the fourth hinge slot 43, which can increase the maximum opening angle of the door body 20 and facilitate users to take and put items. Compared with the implementation mode in which only the first hinge slot 31 and the second hinge slot 41 are set, at the same maximum opening angle, the length of the first hinge slot 31 and the second hinge slot 41 can be shortened, avoiding the space of the fixed hinge 1 or the movable hinge 2 to limit the length of the first hinge slot 31 and the second hinge slot 41, which is also beneficial to improve the strength of the fixed hinge 1.

[0035] Specifically, in the embodiment where the first hinge slot 31 and the second hinge slot 41 are both provided on the fixed hinge 1, the third hinge slot 33 and the fourth hinge slot 43 are both provided on the movable hinge 2. At this time, the extension direction of the third hinge slot 33 from the third starting end A3 is opposite to the rotation opening direction of the door body 20, and the extension direction of the fourth hinge slot 43 from the fourth starting end A4 is opposite to the rotation opening direction of the door body 20.

[0036] Furthermore, the hinge device 10 has a relative rotating end and a free end, with the arrangement direction of the rotating end and the free end as the transverse direction F, and two hinge grooves among the first hinge groove 31, the second hinge groove 41, the third hinge groove 33, and the fourth hinge groove 43 provided on the movable hinge component 2 are located on opposite sides of the preset axis L along the transverse direction F; two hinge grooves among the first hinge groove 31, the second hinge groove 41, the third hinge groove 33, and the fourth hinge groove 43 provided on the fixed hinge component 1 are located on opposite sides of the preset axis L along the transverse direction F. Therefore, the two hinge grooves provided on the movable hinge 2 will not occupy too much space in the thickness direction of the door body 20 (i.e., the front-to-back direction) or the front-to-back direction of the movable hinge 2, and the two hinge grooves provided on the fixed hinge 1 will not occupy too much space in the length direction of the fixed hinge 1 (i.e., the front-to-back direction). Therefore, the setting of the wiring hole 5 will not be affected, and a larger wiring hole 5 can be set, thereby increasing the aperture of the wiring hole 5 and increasing the number of pipelines that can be routed through the wiring hole 5, thereby meeting the wiring requirements of the existing door body 20 with a refrigeration equipment 100 with a functional module.

[0037] It should be noted that the front refers to the direction facing the user when the refrigeration device 100 is in normal use, that is, the direction from the cabinet 30 to the door 20, and the rear refers to the direction from the door 20 to the cabinet 30. When defining that the door 20 has a pivot end that rotates relative to the cabinet 30 and a movable end opposite to the pivot end, the pivot end refers to the end of the hinge device 10 facing the pivot end, and the free end refers to the end of the hinge device 10 facing the movable end. It can be seen that, based on the definition of the front and back, the lateral direction F refers to the left and right direction.

[0038] It can be known that, in the embodiment where the first hinge groove 31 and the second hinge groove 41 are both arranged on the fixed hinge component 1, and the third hinge groove 33 and the fourth hinge groove 43 are both arranged on the movable hinge component 2, the above-mentioned two hinge grooves arranged on the movable hinge component 2 refer to the third hinge groove 33 and the fourth hinge groove 43, and the above-mentioned two hinge grooves arranged on the fixed hinge component 1 refer to the first hinge groove 31 and the second hinge groove 41.

[0039] Specifically, when the movable hinge 2 is in a closed state, the third starting end A3 is located on the side of the first starting end A1 facing the first terminal B1, and the fourth starting end A4 is located on the side of the second starting end A2 facing the second terminal B2. The first hinge shaft 32 includes a first vertical section 321 movably connected to the first hinge slot 31, a second vertical section 322 movably connected to the third hinge slot 33, and a first horizontal section 323 connecting the first vertical section 321 and the second vertical section 322. The second hinge shaft 42 includes a third vertical section 421 movably connected to the second hinge slot 41, a fourth vertical section 422 movably connected to the fourth hinge slot 43, and a second horizontal section 423 connecting the third vertical section 421 and the fourth vertical section 422. On the basis that the two hinge grooves provided on the movable hinge 2 are located on opposite sides of the preset axis L along the transverse direction F, and the two hinge grooves provided on the fixed hinge 1 are located on opposite sides of the preset axis L along the transverse direction F, the length of the hinge groove can be increased to the maximum extent, thereby taking into account the maximum opening angle of the door body 20 and the aperture setting of the wiring hole 5.

[0040] Further, in a specific embodiment, the projections of the third hinge slot 33 and the fourth hinge slot 43 on a preset plane perpendicular to the preset axis L are symmetrical about the center of the intersection of the preset axis L and the preset plane. This makes the force of the hinge device 10 relatively stable and improves the stability of the rotation of the door body 20. It is known that in the embodiment in which the third hinge slot 33 and the fourth hinge slot 43 are both provided in the movable hinge 2, it means that the third hinge slot 33 and the fourth hinge slot 43 are symmetrical about the center of the intersection of the preset axis L and the movable hinge 2. Of course, this is not limited to the above. In other embodiments, the third hinge slot 33 and the fourth hinge slot 43 may not be arranged to be centrally symmetrical, as long as the third hinge slot 33 and the fourth hinge slot 43 are arranged at intervals on the circumferential side of the preset axis L. For example, the distances between the third hinge slot 33 and the fourth hinge slot 43 and the preset axis L may be set to be different, or the third hinge slot 33 and the fourth hinge slot 43 may be arranged on the same side of the preset axis L, etc.

[0041] In a specific embodiment, the projection of the third hinge slot 33 on the plane where the first hinge slot 31 is located covers the first hinge slot 31, and the projection of the fourth hinge slot 43 on the plane where the second hinge slot 41 is located covers the second hinge slot 41. Of course, this is not limited to this.

[0042] Furthermore, in the present embodiment, a first limiting protrusion 311 is protrudingly provided in the first hinge groove 31 to limit the first hinge shaft 32 at the first starting end A1, and a second limiting protrusion 411 is protrudingly provided in the second hinge groove 41 to limit the second hinge shaft 42 at the second starting end A2. In the initial stage of the door body 20 rotating and opening, the first vertical section 321 of the first hinge shaft 32 is firstly maintained at the first starting end A1 under the action of the first limiting protrusion 311, and the third vertical section 421 of the second hinge shaft 42 is firstly maintained at the second starting end A2 under the action of the second limiting protrusion 411, and the second vertical section 322 of the first hinge shaft 32 moves from the third starting end A3 along the third hinge groove 33, and at the same time, the fourth vertical section 422 of the second hinge shaft 42 moves from the fourth starting end A4 along the fourth hinge groove 43, and the second vertical section 322 of the first hinge shaft 32 is moved from the fourth starting end A4 along the fourth hinge groove 43, and the second vertical section 322 of the second hinge shaft 42 is moved from the fourth starting end A5 to the fourth starting end A6. When the third terminal B3 opposite to the third starting end A3 and the fourth vertical section 422 are pressed against the fourth hinge slot 43 and the fourth terminal B4 opposite to the fourth starting end A4 and continue to rotate to open, under the action of external force, the first vertical section 321 passes over the first limiting protrusion 311 and moves along the first hinge slot 31, and the third vertical section 421 passes over the second limiting protrusion 411 and moves along the second hinge slot 41, so that the door body 20 is further opened. When the first vertical section 321 moves to the first terminal B1 of the first hinge slot 31 and the third vertical section 421 moves to the second terminal B2 of the second hinge slot 41, the door body 20 is opened to the maximum opening angle.Of course, this is not limited to this. In other embodiments, the third hinge slot 33 may be provided with a third limiting protrusion for limiting the first hinge axis 32 at the third starting end A3, and the fourth hinge slot 43 may be provided with a fourth limiting protrusion for limiting the second hinge axis 42 at the fourth starting end A4. At this time, in the initial stage of the door body 20 rotating to open, the second vertical section 322 of the first hinge axis 32 is first maintained at the third starting end A3, and the fourth vertical section 422 of the second hinge axis 42 is first maintained at the fourth starting end A4. The first vertical section 321 of the first hinge axis 32 moves from the first starting end A1 along the first hinge slot 31. At the same time, the third vertical section 421 of the second hinge axis 42 moves from the second starting end A1 to the third starting end A4. The starting end A2 moves along the second hinge groove 41, and when the door body 20 rotates to open until the first vertical section 321 abuts against the first terminal B1 of the first hinge groove 31, and the third vertical section 421 abuts against the second terminal B2 of the second hinge groove 41 and continues to rotate to open, under the action of external force, the second vertical section 322 passes over the third limiting protrusion and moves along the third hinge groove 33, and the fourth vertical section 422 passes over the fourth limiting protrusion and moves along the fourth hinge groove 43, so that the door body 20 is further opened, and when the second vertical section 322 moves to the third terminal B3 of the third hinge groove 33 and the fourth vertical section 422 moves to the fourth terminal B4 of the fourth hinge groove 43, the door body 20 opens to the maximum opening angle.

[0043] Furthermore, the hinge grooves of the first hinge groove 31, the second hinge groove 41, the third hinge groove 33, and the fourth hinge groove 43 provided on the fixed hinge member 1 are through grooves provided through the fixed hinge member 1, so as to facilitate the assembly of the hinge device 10. A section of the first hinge shaft 32 and the second hinge shaft 42 that matches the through groove is provided with a limiting portion that limits the movement of the first hinge shaft 32 and the second hinge shaft 42 along the depth direction of the through groove, so as to prevent the first hinge shaft 32 and the second hinge shaft 42 from being separated from the hinge groove provided on the fixed hinge member 1, and to prevent the door body 20 from shaking up and down, thereby improving the stability of the rotation of the door body 20.

[0044] Specifically, in the embodiment where both the first hinge slot 31 and the second hinge slot 41 are disposed on the fixed hinge 1, both the first hinge slot 31 and the second hinge slot 41 are the through slots. The first limiter 324 is disposed at the upper end and the lower end of the first vertical section 321 of the first hinge shaft 32. The first limiter 324 at the upper end abuts against the upper surface of the fixed hinge 1, and the first limiter 324 at the lower end abuts against the lower surface of the fixed hinge 1, so as to limit the first hinge shaft 32 from moving in the up-down direction relative to the fixed hinge 1. The second limiter 424 is disposed at the upper end and the lower end of the third vertical section 421 of the second hinge shaft 42. The second limiter 424 at the upper end abuts against the upper surface of the fixed hinge 1, and the second limiter 424 at the lower end abuts against the lower surface of the fixed hinge 1, so as to limit the second hinge shaft 42 from moving in the up-down direction relative to the fixed hinge 1.

[0045] To sum up, the hinge device 10 in the present invention realizes the rotation of the movable hinge 2 around the preset axis L and is connected to the fixed hinge 1 by replacing the existing hinge shaft and sleeve cooperation mode with the first guide component 3 and the second guide component 4, and can eliminate the setting of the sleeve to avoid the sleeve occupying the thickness of the door body 20. In addition, multiple hinge shafts are set to improve the stability of the hinge device 10. At the same time, when it is necessary to set a wiring hole 5 on the hinge device 10, the aperture of the wiring hole 5 can also be increased, and the number of pipelines that can be routed through the wiring hole 5 can be increased, thereby meeting the wiring requirements of the existing door body 20 with a refrigeration equipment 100 with a functional module.

[0046] It should be understood that although the present specification is described according to embodiments, not every embodiment 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 embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0047] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention and are not intended to limit the protection scope of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A hinge device, comprising a fixed hinge part fixed to a box body and a movable hinge part fixed to a door body, wherein the movable hinge part is rotatably connected to the fixed hinge part around a preset axis; characterized in that: The hinge device also includes a first guide component and a second guide component arranged between the fixed hinge and the movable hinge, the first guide component includes a first hinge groove arranged on one of the fixed hinge and the movable hinge, and a first hinge shaft arranged on the other and located in the first hinge groove, the second guide component includes a second hinge groove arranged on one of the fixed hinge and the movable hinge, and a second hinge shaft arranged on the other and located in the second hinge groove, the first hinge groove and the second hinge groove are both arc grooves with a point located on the preset axis as the center; when the movable hinge rotates relative to the fixed hinge, the first hinge shaft moves in the first hinge groove, and at the same time, the second hinge shaft moves in the second hinge groove.

2. The hinge device according to claim 1, characterized in that: The projections of the first hinge slot and the second hinge slot on a preset plane perpendicular to the preset axis are symmetrical about the center of the intersection of the preset axis and the preset plane.

3. The hinge device according to claim 1, characterized in that: One of the fixed hinge and the movable hinge is provided with a first hinge groove, and the other is also provided with a third hinge groove, the third hinge groove is an arc groove with a point located on the preset axis as the center, one end of the first hinge shaft is movably connected to the first hinge groove, and the other end is movably connected to the third hinge groove, the first hinge groove has a first starting end, and the third hinge groove has a third starting end, when the movable hinge is in a closed state, one end of the first hinge shaft is located at the first starting end, and the other end is located at the third starting end, and the extension direction of the first hinge groove from the first starting end is opposite to the extension direction of the third hinge groove from the third starting end; One of the fixed hinge and the movable hinge is provided with a second hinge groove, and the other is also provided with a fourth hinge groove, the fourth hinge groove is an arc groove with a point on the preset axis as the center, one end of the second hinge shaft is movably connected in the second hinge groove, and the other end is movably connected in the fourth hinge groove, the second hinge groove has a second starting end, and the fourth hinge groove has a fourth starting end, when the movable hinge is in a closed state, one end of the second hinge shaft is located at the second starting end, and the other end is located at the fourth starting end, and the extension direction of the second hinge groove from the second starting end is opposite to the extension direction of the fourth hinge groove from the fourth starting end.

4. The hinge device according to claim 3, characterized in that: The hinge device has a relative rotating end and a free end, with the arrangement direction of the rotating end and the free end as the horizontal direction, and two hinge grooves among the first hinge groove, the second hinge groove, the third hinge groove, and the fourth hinge groove are arranged on the movable hinge component and are located on opposite sides of a preset axis in the horizontal direction; two hinge grooves among the first hinge groove, the second hinge groove, the third hinge groove, and the fourth hinge groove are arranged on the fixed hinge component and are located on opposite sides of a preset axis in the horizontal direction.

5. The hinge device according to claim 4, characterized in that: The first hinge groove has a first terminal end opposite to the first starting end. When the movable hinge is in a closed state, the third starting end is located on the side of the first starting end facing the first terminal end. The first hinge axis includes a first vertical section movably connected to the first hinge groove, a second vertical section movably connected to the third hinge groove, and a first horizontal section connecting the first vertical section and the second vertical section.

6. The hinge device according to claim 4, characterized in that: The second hinge groove has a second terminal end opposite to the second starting end. When the movable hinge is in a closed state, the fourth starting end is located on the side of the second starting end facing the second terminal end. The second hinge axis includes a third vertical section movably connected to the second hinge groove, a fourth vertical section movably connected to the fourth hinge groove, and a second horizontal section connecting the third vertical section and the fourth vertical section.

7. The hinge device according to claim 3, characterized in that: The first hinge groove is provided with a first limiting protrusion for limiting the first hinge axis at the first starting end, and the second hinge groove is provided with a second limiting protrusion for limiting the second hinge axis at the second starting end; or the third hinge groove is provided with a third limiting protrusion for limiting the first hinge axis at the third starting end, and the fourth hinge groove is provided with a fourth limiting protrusion for limiting the second hinge axis at the fourth starting end.

8. The hinge device according to claim 3, characterized in that: The projections of the third hinge slot and the fourth hinge slot on a preset plane perpendicular to the preset axis are symmetrical about the center of the intersection of the preset axis and the preset plane.

9. The hinge device according to claim 3, characterized in that: The hinge grooves among the first hinge groove, the second hinge groove, the third hinge groove and the fourth hinge groove arranged on the fixed hinge component are through grooves arranged through the fixed hinge component, and a section of the first hinge shaft and the second hinge shaft matching with the through grooves is provided with a limiting portion for limiting the movement of the first hinge shaft and the second hinge shaft along the depth direction of the through groove.

10. The hinge device according to claim 1, characterized in that: The first hinge slot and the second hinge slot are both arranged on the fixed hinge component; or the first hinge slot and the second hinge slot are both arranged on the movable hinge component.

11. The hinge device according to any one of claims 1 to 10, characterized in that: The fixed hinge and the movable hinge are provided with wiring holes, and the wiring holes are circular holes with the point on the preset axis as the center.

12. A refrigeration device, comprising a box body, a door body, and a hinge device connected between the box body and the door body; characterized in that: The hinge device is the hinge device according to any one of claims 1 to 11.

Images