CN219197037U - Door hinge for refrigeration equipment and refrigeration equipment - Google Patents

Abstract

The utility model provides a door hinge for refrigeration equipment and the refrigeration equipment. The door hinge comprises a base and a hinge shaft assembly arranged on the base, wherein the base is provided with a mounting hole for the hinge shaft assembly to pass through, and the hinge shaft assembly comprises: the device comprises an inner shaft vertically extending, an outer shaft sleeved on the inner shaft, a base fixed at the bottom end of the inner shaft and a rotary table fixed at the bottom end of the base; the axle center of the inner shaft and the axle center of the outer shaft are arranged eccentrically. Compared with the prior art, the utility model realizes the transverse position adjustment of the door body by the eccentric arrangement between the outer shaft and the inner shaft and the relative rotation between the outer shaft and the inner shaft, and the transverse position adjustment range is larger, the adjustment precision is better, and the utility model is especially suitable for refrigerators with multiple door bodies.

Description

Door hinge for refrigeration equipment and refrigeration equipment

Technical Field

The utility model relates to the field of refrigeration equipment, in particular to a door hinge for refrigeration equipment and the refrigeration equipment with the door hinge.

Background

The existing refrigerator door is opened and closed through the hinge, namely the hinge is fixed with the refrigerator body through a screw, the refrigerator door body rotates by taking the hinge shaft as the center of a circle, so that the door body and the refrigerator body are opened and closed, and the installation quality of the hinge can influence the smoothness and the attractiveness of the door body opening and closing to a great extent. Aiming at the problem of uneven door, the existing hinge can only be adjusted in the vertical direction (set as the Z-axis direction) to change the height of the hinge, so that the hinge shaft moves up and down, and the height of the door body is changed in the Z-axis direction. However, this hinge can only solve the deflection in the height direction, and cannot achieve the position adjustment in the horizontal direction (X-axis and Y-axis) for the deflection in the left-right (X-axis) and front-rear (Y-axis) directions of the door body.

Disclosure of Invention

The utility model solves the technical problem of providing a door hinge for refrigeration equipment and the refrigeration equipment with the door hinge, so as to solve the problem that the position of the door cannot be adjusted in multiple directions in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a door body hinge for refrigeration plant, includes the base and installs the hinge pin subassembly on the base, offer the mounting hole that supplies the hinge pin subassembly to pass on the base, the hinge pin subassembly includes: the device comprises an inner shaft vertically extending, an outer shaft sleeved on the inner shaft, a base fixed at the bottom end of the inner shaft and a rotary table fixed at the bottom end of the base; the axle center of the inner shaft and the axle center of the outer shaft are arranged eccentrically.

Further, the axle center of the inner shaft and the axle center of the base shaft are eccentrically arranged, and the top end of the base shaft is fixedly connected with the bottom end of the inner shaft and are in linkage arrangement.

Further, the axle center of the inner shaft and the axle center of the base shaft are arranged concentrically, and the base shaft is cylindrical and vertically arranged.

Further, the top end of the inner shaft is provided with a shaft cover exposed to the top end of the outer shaft, the top end of the outer shaft is provided with a supporting surface for supporting the shaft cover, and the bottom surface of the shaft cover is provided with a concave-convex structure in press connection with the supporting surface.

Further, the outer shaft comprises a tubular body for accommodating the inner shaft and a bottom cover integrally connected to the bottom of the tubular body, and the bottom cover is polygonal.

Further, a fixed head protruding downwards beyond the bottom cover is arranged at the bottom end of the inner shaft, and the fixed head is fixedly connected with the base shaft through a bolt; the bottom surface of the bottom cover is provided with a concave-convex structure.

Further, the hinge shaft assembly further comprises a locking disc sleeved on the base shaft, the locking disc is connected with the base shaft through threads, and the locking disc adjusts the pressing force of the shaft cover on the supporting surface through screwing.

Further, the locking disk is formed with a concave-convex structure on a side surface facing the shaft cover.

Further, the hinge shaft assembly further comprises a height adjusting seat arranged in the mounting hole and a height adjusting disc fixed at the bottom end of the height adjusting seat, the height adjusting seat is connected in the mounting hole through threads and sleeved on the periphery of the base shaft, and the height adjusting disc drives the height adjusting seat to lift in the mounting hole through rotation.

Further, the height adjusting seat comprises a threaded section protruding downwards beyond the mounting hole and a stop pressing edge located at the top of the threaded section, the stop pressing edge is pressed around the mounting hole downwards, and the stop pressing edge upwards supports the bottom of the outer shaft.

In order to solve the technical problems, the utility model also provides the following technical scheme: a refrigeration apparatus includes a cabinet formed with a storage compartment, a door opening or closing the storage compartment, a door hinge for the refrigeration apparatus as described above, the door hinge connecting the cabinet and the door.

Compared with the prior art, the utility model realizes the transverse position adjustment of the door body by the eccentric arrangement between the outer shaft and the inner shaft and the relative rotation between the outer shaft and the inner shaft, and the transverse position adjustment range is larger, the adjustment precision is better, and the utility model is especially suitable for refrigerators with multiple door bodies.

Drawings

Fig. 1 is a schematic view of a refrigeration apparatus of the present utility model.

Fig. 2 is a perspective combined view of a door hinge for a refrigeration appliance according to the present utility model.

Fig. 3 is an exploded perspective view of the hinge for a door body according to the present utility model.

Fig. 4 is a perspective view of the door hinge of the present utility model with the base removed.

Fig. 5 is a schematic view showing the assembly of the outer shaft and the inner shaft of the door hinge of the present utility model.

Fig. 6 is a schematic assembly view of the inner shaft and the base shaft of the door hinge of the present utility model.

FIG. 7 is a schematic view of the inner and base shafts of the door hinge of the present utility model.

FIG. 8 is a schematic view of the installation of the door hinge of the present utility model.

Fig. 9 is an internal structural view of the hinge shaft assembly of the door hinge of the present utility model.

Fig. 10 is a schematic view illustrating a rotational trace of the outer shaft with respect to the inner shaft of the hinge shaft assembly shown in fig. 9.

Fig. 11 is an internal structural view of a hinge shaft assembly of a door hinge of the present utility model in another embodiment.

Fig. 12 is an internal structural view of a hinge shaft assembly of a door hinge of the present utility model in still another embodiment.

Fig. 13 is a perspective view showing a hinge of a door body according to the present utility model, in which a length of a base shaft is extended.

Fig. 14 is a side view of the hinge of the present utility model with the length of the base shaft extended.

Detailed Description

The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.

It will be appreciated that terms such as "upper," "lower," "outer," "inner," and the like, as used herein, refer to spatially relative positions and are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially 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.

Referring to fig. 1 to 14, the present utility model provides a door hinge a for a refrigeration apparatus, comprising a base 100 and a hinge shaft assembly 200 mounted on the base 100, wherein the base 100 is made of metal and is used for being fixedly mounted on a refrigerator body of the refrigeration apparatus, such as a refrigerator, and the hinge shaft assembly 200 can rotate and deviate relative to the base 100 and is used for being mounted and fixed on the door body of the refrigerator, and the mounting position can be schematically shown in fig. 1, so that the door body and the refrigerator body are fixedly connected with each other. The utility model thus also relates to a refrigeration appliance comprising a cabinet forming a compartment, a door opening or closing the compartment, a door hinge a for a refrigeration appliance as described above, said door hinge a connecting the cabinet and the door. The structure of each component is described in detail below.

The base 100 is provided with a fixing plate 101 fixed to the case and a mounting plate 102 for mounting the hinge shaft, the fixing plate 101 is perpendicular to the mounting plate 102, preferably, the fixing plate 101 is vertically arranged and longitudinally extends, and a fixing hole 103 is formed on the surface of the fixing plate 101 for fixing to the case. The mounting plate 102 is integrally connected to one side of the fixing plate 101 and extends along a horizontal direction, a mounting hole 104 for mounting and accommodating the hinge shaft assembly 200 is formed in the mounting plate 102, the mounting hole 104 penetrates through the mounting plate 102 from top to bottom, so that the hinge shaft assembly 200 can pass through the mounting hole 104, preferably, an annular supporting edge 105 is arranged in the mounting hole 104 and is used for supporting the edge of the hinge shaft assembly 200, and threads are formed in the mounting hole 104.

The hinge shaft assembly 200 includes: the inner shaft 10, the outer shaft 20, the base shaft 30, the height adjustment seat 40, the height adjustment disk 50, the locking disk 60, and the turntable 70. As shown in fig. 3, the above components are mutually assembled to form a whole, and can mutually cooperate to realize vertical height adjustment and horizontal distance adjustment, thereby meeting the adjustment requirements of the door body in the vertical and horizontal directions. Wherein:

the inner shaft 10 extends vertically, and is provided with a strip-shaped shaft body 11 and a shaft cover 12 connected to the top of the shaft body 11, as shown in fig. 6 and 7, the shaft body 11 extends cylindrically and is inserted into the outer shaft 20 from top to bottom, a fixing head 13 matched with the base shaft 30 is arranged at the bottom of the shaft body 11, two sides of the fixing head 13 are provided with a pair of flat surfaces and a pin hole P penetrating through the pair of flat surfaces transversely, the fixing head 13 is used for being inserted into the base shaft 30, and the clamping limit between the fixing head 13 and the base shaft 30 is realized by utilizing the two flat surfaces, and meanwhile, the fixing head 13 and the base shaft 30 can be connected more reliably and firmly by inserting the pin hole P through a pin shaft 14. Preferably, the shaft cover 12 has a circular shape, the bottom surface thereof is pressed against the outer shaft 20, and the bottom surface of the shaft cover 12 is formed with a concave-convex structure Q (e.g., a saw tooth structure) for locking the shaft cover 12 and the outer shaft 20 against relative rotation.

The outer shaft 20 is provided with a tubular body 21 and a bottom cover 22 integrally connected to the bottom of the body 21, as shown in fig. 4 and 5. The body 21 has a hollow structure, the inner portion of the body is used for the inner shaft 10 to pass through, an annular supporting surface 23 for supporting the shaft cover 12 upwards is arranged at the top of the body 21, and the supporting surface 23 is abutted with a concave-convex structure Q (e.g. a sawtooth structure) on the bottom surface of the shaft cover 12. The bottom cover 22 and the body 21 are integrally formed, and the bottom cover 22 is circular, preferably, the bottom surface of the bottom cover 22 is also formed with a concave-convex structure Q (e.g. a saw-tooth structure), and the concave-convex structure Q (e.g. a saw-tooth structure) surrounds the periphery of the inner shaft 10. Preferably, the bottom cover 22 has a polygonal shape (e.g., hexagonal) to facilitate a rotation operation using a wrench or the like. The outer shaft 20 is sleeved on the outer periphery of the inner shaft 10, the inner shaft 10 passes through the outer shaft 20 from top to bottom, and the fixing head 13 at the bottom of the inner shaft 10 protrudes downwards to extend out of the bottom cover 22 of the outer shaft 20 for being in clamping fit with the base shaft 30 below the bottom cover 22. The outer shaft 20 is used for being connected and matched with a refrigerator door body, and is used as a rotating shaft part of the refrigerator door body to assist the refrigerator door body to open and close around the refrigerator door body.

The base shaft 30 is located directly below the outer shaft 20, the top end thereof is provided with an insertion hole 31 for accommodating the fixing head 13, the bottom end thereof is provided with a rotating head 32 connected with the rotating disc 70, as shown in fig. 3 and 7, specifically, the top end of the base shaft 30 is further provided with a pin hole P transversely penetrating through the insertion hole 31, the pin hole P corresponds to the pin hole P on the fixing head 13 in position, and after the fixing head 13 of the inner shaft 10 is inserted into the insertion hole 31, a pin shaft 14 is transversely inserted into the pin holes P on the base shaft 30 and the fixing head 13, thereby fixing and positioning the fixing head 13 of the inner shaft 10 and the top end of the base shaft 30. Preferably, the surface of the base shaft 30 is further provided with threads 33 between the top and bottom ends, and the base shaft 30 is cylindrical and vertically arranged.

The height adjustment seat 40 is mounted on the mounting plate 102 of the base shaft 30 from top to bottom and is mounted in the mounting hole 104 of the mounting hole 104, as shown in fig. 3 and 8, and the height adjustment seat 40 is abutted upward to the bottom cover 22 of the outer shaft 20 and is in pressure contact with the concave-convex structure Q (e.g., a saw-tooth structure) on the bottom surface of the bottom cover 22. The height adjusting seat 40 is provided with a threaded section 41 and a circular stop pressing edge 42 positioned at the top of the threaded section 41, the threaded section 41 is screwed into the mounting hole 104 and fixedly combined with the mounting hole 104, and the threaded section 41 protrudes downwards through the mounting hole 104 to be fixedly connected with the height adjusting disk 50 below the mounting plate 102. The circular stop flange 42 is received in the mounting hole 104 and is crimped onto the annular support flange 105 in the mounting hole 104, which can act as a stop during screwing down of the threaded section 41, preferably, the circular stop flange 42 is abutted upward against the concave-convex structure Q (e.g., a saw-tooth structure) on the bottom surface of the bottom cover 22.

The height adjusting plate 50 is installed below the mounting plate 102 from bottom to top, and is configured to be fixedly connected with the bottom end of the height adjusting seat 40, as shown in fig. 3 and 8, preferably, the height adjusting plate 50 is polygonal (such as hexagonal), so that a wrench can screw the height adjusting plate, and the height adjusting plate 50 is integrally connected with the bottom end of the threaded section 41 of the height adjusting seat 40, for example: and are fixedly connected with each other by adopting welding, riveting and the like, so that the rotation of the height adjusting disk 50 can synchronously drive the rotation of the height adjusting seat 40. Thus, only a wrench is used to rotationally adjust the height adjustment plate 50 below the mounting plate 102, so that the height adjustment seat 40 can be moved up and down by means of a threaded engagement with the mounting hole 104.

The locking plate 60 is located under the height adjustment plate 50 as shown in fig. 7, and the locking plate 60 is formed with a concave-convex structure Q (e.g., a saw-tooth structure) on an upper surface facing the height adjustment plate 50, the concave-convex structure Q (e.g., a saw-tooth structure) being abutted to a bottom surface of the height adjustment plate 50. Preferably, the locking plate 60 has a polygonal shape (e.g., hexagonal) to facilitate the screwing operation by a wrench. A through hole 61 for accommodating the base shaft 30 is formed in the center of the locking plate 60, and the through hole 61 allows the base shaft 30 to pass through and be connected with the base shaft 30 through threads. When in installation, the locking plate 60 is required to be screwed onto the base shaft 30 from bottom to top until being screwed, and the concave-convex structure Q (such as a sawtooth structure) is utilized to compress the bottom surface of the height adjusting plate 50, so that the locking plate 60 and the height adjusting plate 50 are fastened and positioned with each other. It should be noted that, when the locking disc 60 rotates on the base shaft 30, the pressing force of the shaft cover 12 on the top of the inner shaft 10 against the annular supporting surface 23 on the top of the outer shaft 20 can be adjusted, for example, when the locking disc 60 rotates clockwise, the concave-convex structure Q (such as a sawtooth structure) on the bottom surface of the shaft cover 12 presses down on the annular supporting surface 23, so that the outer shaft 20 and the inner shaft 10 are locked relatively to each other and cannot rotate relatively; conversely, when the locking disk 60 is rotated counterclockwise, the concave-convex structure Q (e.g., a saw tooth structure) on the bottom surface of the shaft cover 12 releases the compression on the supporting surface 23, so that the inner shaft 10 and the outer shaft 20 can rotate relatively. In practice, the locking disk 60 can be flexibly rotated according to the requirement, and the relative rotation of the inner shaft 10 and the outer shaft 20 can be respectively adjusted until the outer shaft 20 is adjusted to a required position, and then the locking disk 60 is rotated again to lock, so that the position adjustment precision can be greatly improved.

The rotary plate 70 is mounted below the locking plate 60, and sleeved at the bottom end of the base shaft 30, and is fixedly connected with the rotary head 32 at the bottom end of the base shaft 30, as shown in fig. 3 and 8, preferably, the rotary plate 70 is polygonal (such as hexagonal) so as to facilitate screwing operation of a wrench, and an opening for accommodating the rotary head 32 is arranged at the center of the rotary plate 70, and the opening and the rotary head 32 can be connected by welding or riveting so as to keep stable and reliable fixed positioning therebetween, so that rotation of the rotary plate 70 can drive rotation of the base shaft 30.

As can be seen from the above, the height adjusting plate 50, the locking plate 60 and the turntable 70 are all located below the mounting plate 102 and are sequentially overlapped from top to bottom for being fixed to the height adjusting seat 40 and the base shaft 30 from bottom to top, as shown in fig. 8. The outer shaft 20 is located above the mounting plate 102, and the inner shaft 10 and the height adjustment seat 40 pass through the mounting plate 102 from top to bottom in the vertical direction. The base shaft 30 is accommodated in the height adjusting seat 40, and the bottom end of the base shaft 30 protrudes downward from the height adjusting seat 40, and passes through the height adjusting disk 50 and the locking disk 60 from top to bottom, so as to reach the turntable 70, thereby realizing a fixed connection with the turntable 70. Therefore, after the door body of the refrigerator is mounted on the outer shaft 20, the height adjusting plate 50 below the mounting plate 102 is only required to be rotated to drive the height adjusting seat 40 to move up and down in the mounting hole 104 of the mounting plate 102, so that the height position of the height adjusting seat 40 is changed, and the height adjusting seat 40 drives the outer shaft 20 to move up and down, thereby achieving the purpose of vertically adjusting the door body.

It should be noted that the hinge shaft assembly 200 of the present utility model can also be used to adjust the lateral position of the door, and the manner or principle of the adjustment of the lateral position is described below as one of the preferred embodiments of the present utility model.

The inner shaft 10 and the outer shaft 20 are arranged inside and outside and can rotate relatively, especially the outer shaft 20 and the inner shaft 10 are arranged eccentrically, namely the axes of the two shafts are kept at a certain distance L, the axes O1 of the outer shaft 20, the axes O2 of the inner shaft 10 and the axes O3 of the base shaft 30 are arranged, as shown in fig. 9 and 10, the relative positions of the three axes O1, O2 and O3 are adjusted, so that the position deviation (namely the eccentric arrangement) exists between at least two axes, and further the position variable along the horizontal direction is generated in the relative rotation process of the two axes, thereby the position of the outer shaft 20 can be adjusted in the horizontal plane, the displacement in the X direction and the Y direction can be realized in the rotation process, and the purpose of transverse position adjustment is achieved.

Preferably, taking the example that the outer shaft 20 is concentric with the base shaft 30 but is eccentric to the inner shaft 10 as shown in fig. 9 and 10, at this time, the base shaft 30 and the inner shaft 10 are kept stationary, and only the outer shaft 20 is required to be rotated to rotate around the axis of the inner shaft 10, so that the positions of the outer shaft 20 in the X direction and the Y direction can be adjusted (refer to two dotted circles in fig. 10, which are examples of movement tracks of the outer shaft 20 in the displacement directions F1 and F2), so as to realize the lateral position adjustment of the door body.

As another alternative, the present utility model may also employ a scheme in which the inner shaft 10 is concentric with the base shaft 30 but is eccentric to the outer shaft 20, as shown in fig. 11, when the outer shaft 20 rotates around the axis of the base shaft 30 or the inner shaft 10, the outer shaft 20 generates a displacement variable in the direction of X, Y.

As yet another alternative, the present utility model may also adopt a scheme in which the inner shaft 10, the outer shaft 20, and the base shaft 30 are all eccentrically disposed, as shown in fig. 12, when the outer shaft 20 rotates around the axis of the base shaft 30 and the inner shaft 10 rotates around the axis of the base shaft 30, the outer shaft 20 generates a displacement variable in the direction X, Y; when the outer shaft 20 rotates around the axis of the inner shaft 10, the outer shaft 20 will also generate a displacement variable in the direction X, Y; when the outer shaft 20 rotates around the axis of the inner shaft 10 and the inner shaft 10 rotates around the axis of the base shaft 30, that is, when the inner shaft 10 and the outer shaft 20 rotate synchronously, the outer shaft 20 also generates a displacement variable in the direction X, Y. In this embodiment, the outer shaft 20 and the inner shaft 10 are eccentrically disposed, so that the outer shaft 20 can be adjusted in lateral position, and the outer shaft 20 can be provided with a larger range of lateral position variable by combining the eccentric rotatable base shaft 30, thereby achieving higher-precision lateral position adjustment.

It can be seen that, in both the solutions shown in fig. 11 and fig. 12, at least two axes need to be eccentrically arranged, and the displacement variable in the X, Y direction is generated by the outer shaft 20 in the rotating process due to the eccentricity, so that the functional requirement on the transverse position adjustment of the outer shaft 20 is satisfied.

It should be noted that, in practical application, the hinge shaft assembly 200 of the present utility model is installed in a direction or in a use manner, depending on an installation position, if it is used as an upper hinge, it is installed at the top of the refrigerator cabinet, and the outer shaft 20 is located below the installation plate 102 and extends downward; if it is used as a middle hinge, it is installed in the middle of the refrigerator cabinet, and the outer shaft 20 may be optionally disposed upward or downward as appropriate; if used as a lower hinge, it is mounted to the bottom of the refrigerator cabinet and the outer shaft 20 is positioned above the mounting plate 102 and is disposed upward. The three specific mounting arrangements described above may be combined with that shown in figure 1. It should be noted that when the hinge assembly 200 of the present utility model is used as a middle hinge, the length of the base shaft 30 is only required to be properly extended, i.e., one end of the base shaft 30 is extended downward through the turntable 70, so that the base shaft is used as a shaft body of a lower door body (as shown in fig. 13 and 14), i.e., the outer shaft 20 and the base shaft 30 respectively located on the upper side and the lower side of the mounting plate 102 are used to mount the upper door body and the lower door body respectively, so that the same hinge shaft assembly 200 can simultaneously support the upper door body and the lower door body, thereby avoiding the trouble of mounting the two hinge shaft assemblies 200, and being particularly suitable for being mounted at the middle position of the refrigerator.

In summary, according to the present utility model, the outer shaft 20, the inner shaft 10 and the base shaft 30 are eccentrically disposed, and the relative rotation between the outer shaft 20 and the inner shaft brings about a displacement variable in a horizontal plane to the outer shaft 20, so that the lateral position of the door body is adjusted.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.

Claims (11)

1. The utility model provides a door body hinge for refrigeration plant, includes the base and installs the hinge pin subassembly on the base, offer the mounting hole that supplies the hinge pin subassembly to pass on the base, its characterized in that: the hinge shaft assembly includes: the device comprises an inner shaft vertically extending, an outer shaft sleeved on the inner shaft, a base shaft fixed at the bottom end of the inner shaft and a rotary table fixed at the bottom end of the base shaft; the axle center of the inner shaft and the axle center of the outer shaft are arranged eccentrically.

2. A door hinge for a refrigeration appliance according to claim 1, wherein: the axle center of interior axle with the axle center of basic shaft is eccentric setting, and the top of basic shaft links to each other with the bottom fixed of interior axle and links to each other and set up each other.

3. A door hinge for a refrigeration appliance according to claim 1, wherein: the axle center of interior axle with the axle center of basic shaft is concentric setting, and the basic shaft is the cylinder and is vertical setting.

4. A door hinge for a refrigeration appliance according to claim 1, wherein: the top of the inner shaft is provided with a shaft cover exposed to the top of the outer shaft, the top of the outer shaft is provided with a supporting surface for supporting the shaft cover, and the bottom surface of the shaft cover is provided with a concave-convex structure in pressure connection with the supporting surface.

5. The door hinge for a refrigeration appliance according to claim 4, wherein: the outer shaft comprises a tubular body for accommodating the inner shaft and a bottom cover integrally connected to the bottom of the tubular body, and the bottom cover is polygonal.

6. A door hinge for a refrigeration appliance according to claim 5, wherein: the bottom end of the inner shaft is provided with a fixed head which protrudes downwards and exceeds the bottom cover, and the fixed head is fixedly connected with the base shaft through a bolt; the bottom surface of the bottom cover is provided with a concave-convex structure.

7. The door hinge for a refrigeration appliance according to claim 4, wherein: the hinge shaft assembly further comprises a locking disc sleeved on the base shaft, the locking disc is connected with the base shaft through threads, and the locking disc adjusts the pressing force of the shaft cover on the supporting surface through screwing.

8. The door hinge for a refrigeration appliance according to claim 7, wherein: the locking disk is formed with a concave-convex structure on a side surface facing the shaft cover.

9. Door hinge for a refrigeration appliance according to any one of claims 1 to 8, characterized in that: the hinge shaft assembly further comprises a height adjusting seat arranged in the mounting hole and a height adjusting disc fixed at the bottom end of the height adjusting seat, the height adjusting seat is connected in the mounting hole through threads and sleeved on the periphery of the base shaft, and the height adjusting disc drives the height adjusting seat to lift in the mounting hole through rotation.

10. A door hinge for a refrigeration appliance as claimed in claim 9, wherein: the height adjusting seat comprises a threaded section and a stop pressing edge, the threaded section protrudes downwards to exceed the mounting hole, the stop pressing edge is located at the top of the threaded section, the stop pressing edge is pressed around the mounting hole downwards, and the stop pressing edge upwards supports the bottom of the outer shaft.

11. A refrigeration device, characterized by: a case including a storage compartment formed therein, a door opening or closing the storage compartment, a door hinge for a refrigeration apparatus according to any one of claims 1 to 10, the door hinge connecting the case and the door.

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