CN112983163B

CN112983163B - Adjusting hinge

Info

Publication number: CN112983163B
Application number: CN202110131868.5A
Authority: CN
Inventors: 张海文; 许兴隆; 邹莲; 钱峰; 戴凯; 季强
Original assignee: Wuxi Haidaer Precision Slides Co ltd
Current assignee: Wuxi Haidaer Precision Slides Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2022-12-06
Anticipated expiration: 2041-01-30
Also published as: CN112983163A

Abstract

The invention discloses an adjusting hinge in the technical field of connecting pieces, which is used for adjusting a gap between box doors of a box body and comprises a hinge shaft rotatably connected with the box doors and a hinge seat fixed on the box body, and also comprises a linkage part movably connected with the hinge seat, an operating part arranged on the linkage part and a connecting structure connected between the hinge shaft and the linkage part, wherein a first end of the connecting structure is connected with the linkage part, a second end of the connecting structure is connected with the hinge shaft, and the operating part of the linkage part is operated to drive the second end of the connecting structure to rotate through the linkage part so as to drive the hinge shaft to move along the motion track of the second end of the connecting structure. According to the invention, the adjustment of the gap between the box doors can be realized only by driving the linkage part to rotate, compared with the adjustment mode in the prior art, the adjustment mode is more flexible and convenient, and the adjustment efficiency and the adjustment precision are improved.

Description

Adjusting hinge

Technical Field

The invention belongs to the technical field of connecting pieces, and particularly relates to an adjusting hinge.

Background

A door body of the refrigerator is mounted on a refrigerator main body through a hinge to rotatably open or close the refrigerator main body. Among the prior art, the interval between two refrigerator doors of two refrigerator that the large capacity was two opens should be unanimous from top to bottom according to the quality requirement, and current refrigerator door passes through hinge mount back hinge position on the refrigerator body and can not adjust again, and the refrigerator after the assembly receives factors such as external force influence in follow-up transportation, and refrigerator door position can take place the angular migration in vertical reversal and make the upper and lower part interval between two refrigerator doors inconsistent greatly. In the prior art, the hinge seat and the hinge shaft are usually arranged into an integrated structure, and the mode of adjusting the refrigerator door is as follows: after screws on the hinge seats are loosened one by one, the positions of the hinge seats are adjusted within the adjusting range of the waist-shaped holes, and therefore the hinge seats drive the refrigerator door body to adjust the position of the door body. Such a problem also exists in other door adjustment scenarios for appliances such as home appliances and furniture, where the door gap needs to be adjusted.

The existing hinge structure is inconvenient to adjust, and the adjusting precision is not easy to control.

Disclosure of Invention

The invention aims to provide an adjusting hinge to solve the problem of complex operation in the prior art when the gap between box doors or box bodies is adjusted.

In order to solve the above problems, the present invention provides the following technical solutions: an adjusting hinge is used for being connected between a box body and a box door arranged on the box body, and comprises a hinge shaft which can be rotatably connected with the box door, a hinge seat fixed on the box body, a linkage part movably connected with the hinge seat, an operating part arranged on the linkage part, and a connecting structure connected between the hinge shaft and the linkage part, wherein a first end of the connecting structure is connected with the linkage part, a second end of the connecting structure is connected with the hinge shaft, the operating part of the linkage part is operated to drive the second end of the connecting structure to rotate through the linkage part, so that the hinge shaft is driven to move along the movement track of the second end of the connecting structure, the hinge seat comprises a fixing plate and a connecting plate, the fixing plate is fixed on the box body, the operating part further comprises a limiting mechanism, the limiting mechanism comprises a first locking structure connected with the linkage part and a second locking structure fixed with the connecting plate, a locking position and a movable position are arranged between the first locking structure and the second locking structure, and the hinge shaft and the connecting plate are relatively fixed at the locking position; in the active position, the hinge axis is movable relative to the web, one of the first and second locking structures providing an indexing locking structure and the other providing a locking portion for selective locking engagement with one of the indexing portions of the indexing locking structure.

Preferably, the connecting structure is specifically configured as a cam structure, and the linkage portion is eccentrically connected to the cam structure relative to the hinge shaft.

Preferably, the linkage part is rotatably connected to the hinge base, and when the operation part is operated, the linkage part rotates relative to the hinge base and rotates around a first axis as a rotation center.

Preferably, the hinge seat is provided with an opening, the top of the linkage part penetrates through the opening, the operating part is arranged at the top of the linkage part, and the operating part and the hinge shaft are respectively positioned at two sides of the hinge seat.

Preferably, the axis of the hinge shaft is a second axis, and the first axis and the second axis are parallel and spaced apart.

Preferably, the operating part comprises a fixing part fixedly connected with the linkage part, and the fixing part limits the linkage part to be separated from the upward movement of the hinge seat.

Preferably, the operating portion further includes two opposite parallel side surfaces formed at the fixing portion.

Preferably, the fixing part is provided with a through hole, the shape of the through hole is consistent with the outer contour of the top of the linkage part, and the fixing part is fixedly sleeved on the linkage part through the through hole.

Preferably, the first locking structure is an elastic arm, the elastic arm is provided with a first protrusion serving as the locking portion, the second locking structure is a positioning strip fixed on the connecting plate, the positioning strip is provided with a plurality of first clamping grooves matched with the first protrusion, the positioning strip is the indexing type locking structure, each first clamping groove is an indexing part, and the first protrusion is clamped with the first clamping groove.

Preferably, one end of the elastic arm is fixedly connected with the fixing part, the other end of the elastic arm is an arc-shaped arm, and the first protrusion is arranged on the outer side of the arc-shaped arm.

Preferably, the second locking structure is an elastic rod with one end fixed on the connecting plate, the other end of the elastic rod is provided with a second protrusion serving as the locking portion, the first locking structure is a plurality of second clamping grooves which are arranged on the outer contour of the fixing portion and are matched with the second protrusion, the fixing portion is the indexing type locking structure, each second clamping groove is an indexing portion, and the second protrusion is clamped with the second clamping groove.

Preferably, the operating part further comprises two operating panels symmetrically arranged on the fixing part.

Preferably, the first locking structure is an elastic pin arranged at one end of the fixing portion, the elastic pin is the locking portion, the second locking structure is a plurality of limiting holes arranged on the hinge base, the limiting holes are the indexing type locking structures, each limiting hole is an indexing part, and the elastic pin is in inserting fit with one of the limiting holes.

Preferably, be equipped with the pinhole on the fixed part, the elastic pin with the pinhole cooperation of pegging graft, the fixed part is kept away from one side of linkage portion is equipped with the regulating part, be equipped with the patchhole on the regulating part, the patchhole is located directly over the pinhole, the elastic pin passes in proper order the patchhole the pinhole with spacing hole joint.

Preferably, an elastic space is formed between the adjusting portion and the fixing portion, an elastic member is sleeved outside the elastic pin, an elastic abutting structure is arranged on the elastic pin at the bottom side of the elastic member, and the elastic member is located between the elastic abutting structure and the adjusting portion.

The working principle and the beneficial effects of the scheme are as follows: the hinge seat is fixedly arranged on the box body, the hinge shaft is movably arranged on the hinge seat through the linkage part, the box door is assembled on the box body through the hinge shaft, and the operation part drives the linkage part to rotate so as to drive the cam structure to rotate the hinge shaft, so that the relative clearance between the box doors is adjusted. Compared with the adjusting mode in the prior art, the adjusting mode of the adjusting hinge capable of rotating is more flexible and convenient, the fixing parts do not need to be disassembled one by one, the adjusting efficiency and the adjusting precision are further improved, and the stability after adjustment is good.

Drawings

Fig. 1 is a schematic structural view of an adjusting hinge applied to a refrigerator according to the present invention;

FIG. 2 is a schematic perspective view of an embodiment of an adjustment hinge 1 according to the present invention;

FIG. 3 is a schematic perspective view of another embodiment of an adjustment hinge 1 according to the present invention;

FIG. 4 is an exploded view of an embodiment of an adjustment hinge 1 of the present invention in one orientation;

FIG. 5 is an exploded view of another orientation of an embodiment of an adjustment hinge 1 of the present invention;

FIG. 6 is a top view of an embodiment of an adjustment hinge 1 of the present invention;

fig. 7 is a schematic view of a connection structure of a first protrusion and a first locking groove in an embodiment 1 of an adjustment hinge according to the present invention;

FIG. 8 is a schematic view showing a connection structure of a hinge shaft and a linkage part in an embodiment 1 of an adjustment hinge according to the present invention;

FIG. 9 is a schematic perspective view of an embodiment of an adjustable hinge 2 according to the present invention in one direction;

FIG. 10 is a schematic perspective view of another embodiment of an adjustment hinge of the present invention in an alternative orientation in embodiment 2;

FIG. 11 is a schematic perspective view of an embodiment of an adjustment hinge of the present invention in another orientation;

FIG. 12 is an exploded view of an embodiment of an adjustment hinge 2 of the present invention in one orientation;

FIG. 13 is an exploded view of another orientation of an embodiment of an adjustment hinge of the present invention 2;

FIG. 14 is a perspective view of an embodiment of an adjustment hinge 3 according to the present invention;

FIG. 15 is a schematic perspective view of another embodiment of an adjustment hinge 3 of the present invention;

FIG. 16 is a schematic perspective view of an adjustment hinge of embodiment 3 of the present invention in yet another orientation;

figure 17 is an exploded view of an embodiment of an adjustment hinge 3 of the present invention in one orientation.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the refrigerator comprises a refrigerator main body 100, a refrigerator adjusting hinge 200, a refrigerator door 300, a fixing plate 1, a fixing hole 101, a screw 2, a bending part 3, a connecting plate 4, an opening 41, a clearance groove 5, an operating structure 6, a fixing part 7, a through hole 71, an elastic arm 8, an arc-shaped arm 81, a first protrusion 9, an arc-shaped transition surface 91, a positioning strip 10, a first clamping groove 11, a hinge shaft 12, a cam 13, a linkage part 14, a rotating shaft 15, an elastic rod 21, a second protrusion 22, a second clamping groove 23, an operating plate 24, a limiting hole 31, an adjusting part 32, a horizontal section 321, a vertical section 322, an elastic pin 33, a head 331, a rod part 332, a limiting block 34, an installing hole 35, an elastic piece 36, a pin hole 37 and an inserting hole 38.

The invention relates to a refrigerator, please refer to fig. 1, the refrigerator has a refrigerator main body 100, a refrigerator door 300 installed on the refrigerator main body 100, and a refrigerator adjusting hinge 200 installed on the refrigerator main body 100 and connected with a hinge shaft 12 arranged on the refrigerator door 300. The present invention specifically provides three different embodiments of the refrigerator adjusting hinge 200, each of which realizes the adjustment of the gap between the refrigerator doors 300 in the horizontal plane direction. Compared with the traditional mode of adopting the fixing piece (such as a screw), the fixing piece does not need to be detached one by one when needing to be adjusted, the adjusting mode is more flexible and convenient, and the adjusting efficiency and the adjusting precision are improved.

The adjusting hinge 200 of the present invention is not limited to be used for adjusting the gap between the refrigerator doors of the refrigerator, and can be used for adjusting the gap between the main body and the door mounted thereon in at least two directions. Such as the oven door of an oven, cabinet door, etc., which have a door adjustment scenario requiring adjustment of the installation gap.

Embodiment 1 is substantially as shown in figures 2-6: the utility model provides a hinge 200 is adjusted to refrigerator, includes the hinge seat, and the hinge seat includes integrative stamping forming's fixed plate 1 and connecting plate 4, and the punching press forms kink 3 between fixed plate 1 and the connecting plate 4, and the setting of kink 3 makes the high nonconformity of fixed plate 1 and connecting plate 4 to be convenient for articulate the installation of seat and refrigerator. The fixing plate 1 is provided with a fixing hole 101, and a fixing member is provided in the fixing hole 101, and the fixing member is fixed to the top surface of the refrigerator main body 100 through the fixing hole 101. In the present embodiment, the fixing member is specifically a screw 2, and a counter bore matched with the screw 2 is formed in the top wall of the refrigerator main body 100, so that the fixing plate 1 is conveniently and fixedly mounted on the top wall of the refrigerator main body 100. The groove 5 of keeping away of "U" type is inwards offered to one side edge of relative refrigerator main part 100 on connecting plate 4, and when refrigerator door 300 rotated to open, the rotatory 5 scopes of keeping away of entering of one corner that the outside of refrigerator door 300 is close to, keep away the edges and corners that groove 5 is used for keeping away refrigerator door 300 to be convenient for the protection to the edges and corners of refrigerator door 300. In order to avoid the refrigerator corner from being collided by the refrigerator adjusting hinge 200, the avoiding groove 5 occupies a large area of the connecting plate 4, so that it is difficult to provide an adjusting device with a complicated structure in the remaining area of the connecting plate 4.

The refrigerator adjusting hinge 200 further includes a hinge shaft 12, the hinge shaft 12 being movably disposed at a side of the connection plate 4 adjacent to the refrigerator door 300, the refrigerator door 300 being assembled to the refrigerator main body 100 by the hinge shaft 12, the refrigerator door 300 being pivotable about the hinge shaft 12 to be opened or closed with respect to the refrigerator main body 100. The hinge shaft 12 is provided with a cam structure, the cam structure comprises a cam 13 arranged on the top of the hinge shaft 12, and the cam 13 is provided with a linkage part 14 extending at a position which is a certain horizontal distance away from the shaft of the hinge shaft 12. One end of the linkage part 14 connected with the cam 13 forms a rotating shaft 15, the linkage part 14 and the rotating shaft 15 are coaxially arranged, and the central axes of the linkage part 14 and the rotating shaft 15 are parallel to and do not coincide with the axis of the hinge shaft 12. The interlocking part 14 and the hinge shaft 12 are respectively positioned at the upper and lower sides of the cam 13. The cams 13 and the linkage portions 14 may be disposed on opposite sides of the connecting plate 4, specifically, the linkage portion 14 is disposed on the top side of the connecting plate 4, and the cams 13 are disposed on the bottom side of the connecting plate 4, so as to facilitate the operation of the rotation of the linkage portion 14, while in some embodiments, the cams 13 and the linkage portions 14 are disposed on the same side of the connecting plate 4, and the cams 13 and the linkage portions 14 are disposed on the top side or the bottom side of the connecting plate 4. The connecting plate 4 is provided with an opening 41 for allowing the linkage portion 14 and the rotating shaft 15 thereof to pass through, and the rotating shaft 15 of the linkage portion 14 is rotatably arranged in the opening 41 in a penetrating way.

In the present embodiment, the cam 13 is embodied in a circular arc shape protruding toward one side in the radial direction of the hinge shaft 12, and the junction of the cam 13 and the edge of the hinge shaft 12 is smoothly arranged in transition. When the linkage portion 14 and the rotating shaft 15 rotate along the central axis thereof, the cam 13 drives the hinge shaft 12 to rotate relative to the axial center of the rotating shaft 15. In other embodiments, the specific shape of the cam 13 is not limited, and the interlocking portion 14 and the rotating shaft 15 may not be coaxially provided. The present invention is directed to connect the link 14 and the hinge shaft 12 by the cam 13 and allow the link 14 to rotate while rotating the hinge shaft 12 with respect to the hinge base, that is, with respect to the refrigerator main body 100. In the preferred embodiment of the present invention, the hinge shaft 12, the cam 13, the rotating shaft 15 and the linkage part 14 are integrally die-cast metal parts, and the integral member can satisfy the overall rigidity strength of the adjusting hinge structure, and ensure the durability of the refrigerator adjusting hinge 200. However, the present invention is not limited to the hinge shaft 12, the cam 13, the shaft 15 and the linkage portion 14 being an integral structure, and may be a split structure and connected by mechanical connection or welding. Referring to fig. 8, the hinge shaft 12 of the present invention has a center hole structure, and the cam 13 encloses one end of the hinge shaft 12. In order to ensure the overall strength of the hinge shaft 12, the cam 13 is a complete plate-shaped or block-shaped structure, but because the refrigerator hinge shaft 12 generally has the requirement of cable threading, the cam 13 can be provided with an opening (not shown in the figure) for allowing the cable to pass through according to the strength bearing capacity of the material.

The refrigerator adjusting hinge 200 further includes an operating part for operating the linkage 14 to rotate. The operation part is provided with an operation element suitable for being operated by a tool, and further comprises a limiting mechanism for limiting the position of the operation and the accuracy of the operation. The limiting mechanism is provided with a locking position and a movable position, and the hinge shaft 12 and the connecting plate 4 are relatively fixed in the locking position; in the active position, the hinge shaft 12 and the connecting plate 4 can be relatively pivoted by operating the linkage 14. Specifically, the limiting mechanism comprises an elastic arm 8 fixed opposite to the linkage part 14 and a positioning strip 10 positioned on the connecting plate 4.

In the preferred embodiment of the present invention, the limiting mechanism includes a first locking structure fixed to the linkage portion 14 and a second locking structure fixed to the connecting plate 4.

The first locking structure comprises a fixing part 7 arranged on the linkage part 14, a through hole 71 is formed in the fixing part 7, the shape of the through hole 71 is consistent with that of the linkage part 14, and the fixing part 7 is fixedly sleeved on the linkage part 14 through the through hole 71 and is relatively and rotatably fixed. Specifically, the linkage portion 14 is provided with two parallel side walls in a direction parallel to the axial direction, and the through hole 71 is provided with two parallel inner side walls corresponding to the two parallel side walls of the linkage portion 14, and the two side walls are relatively rotated and stopped to realize relative fixation of the rotation direction. In order to drive the linkage part 14 to rotate relative to the connecting plate 4, the linkage part 14 is provided with an operating part, in the preferred embodiment of the invention, the operating structure 6 is arranged on the fixed part 7, and the operating structure 6 comprises two opposite parallel side surfaces formed on the fixed part 7 and used for cooperating with an operating tool to realize the rotation of the linkage part 14. Specifically, in the present embodiment, the fixing portion 7 is provided with two parallel outer side walls facing each other, so as to facilitate engagement with a tool such as a wrench. In other embodiments, the operation portion may not be provided on the fixing portion 7, but the fixing portion 7 only functions as the interlocking elastic arm 8, and the operation portion may be provided on the interlocking portion 14 in a manner that can be operated by a tool, for example, a hexagonal recess may be formed on the top surface of the interlocking portion 14, or a tool-locking element, for example, a parallel plane, a recess, a groove, a through hole, or the like may be provided on the outer periphery of the interlocking portion 14.

As shown in fig. 7, the fixing portion 7 of the first locking structure is connected with the elastic arm 8, the elastic arm 8 is in a V shape, one end of the elastic arm 8 away from the fixing portion 7 is an arc-shaped arm 81, a wedge-shaped first protrusion 9 is arranged outside the arc-shaped arm 81, the second locking structure comprises an arc-shaped positioning strip 10, seven wedge-shaped first slots 11 are formed on the positioning strip 10 by one-step stamping, the first slots 11 are engaged with the outer wheel profile of the first protrusion 9 to realize mutual engagement, and the tip of the first protrusion 9 and the connection between two adjacent first slots 11 are both provided with an arc transition surface 91 to facilitate the smooth movement of the first protrusion 9 when the first protrusion and the first slot 11 are displaced, thereby improving the practicability, initial position of first arch 9 and the first draw-in groove 11 joint of centering on the locating bar 10, when the relative clearance of refrigerator door 300 needs to be adjusted, operation structure 6 through rotating fixed part 7 is with rotatory elastic arm 8, elastic arm 8 takes place elastic deformation when rotating the extrusion force that receives locating bar 10, elastic arm 8 drives first arch 9 card and goes into the first draw-in groove 11 of other positions, when elastic arm 8 is rotatory, linkage portion 14 synchronous revolution, thereby it is rotatory to drive pivot 15, and then make the linkage of hinge pin 12 through cam 13, and then drive the removal of refrigerator door 300, in order to realize the regulation in the clearance between the refrigerator door 300, and after the clearance adjustment, another first draw-in groove 11 block again of one side among them in first arch 9 and the both sides, the position no longer changes. The elastic arm 8 is made of elastic steel, and thus has elasticity and strong fixing strength, so that the stability of the refrigerator main body 100 after the gap adjustment with the refrigerator door 300 is ensured under the condition that a general non-operation external force is applied. The first clamping grooves 11 arranged on the positioning strip 10 are arranged adjacent to each other, the edge of one side of the positioning strip 10 close to the elastic arm 8 extends in an arc shape, and the first clamping grooves 11 are uniformly distributed on the arc-shaped edge of the positioning strip 10, so that a plurality of indexing structures with equal-length tracks are formed. The linkage part 14 is rotated, the elastic arm 8 follows up, and the linkage part 14 rotates according to certain arc-shaped indexing through the clamping switching of the first protrusion 9 and the first clamping groove 11 of the elastic arm 8, so that the precision control of the rotation angle of the linkage part 14 relative to the connecting plate 4 can be realized.

In this embodiment, the radian of the arc-shaped positioning strip 10 of the second locking structure is consistent with the radian of the arc-shaped arm 81 of the elastic arm 8 or the radian of the elastic arm 8 is larger, so that the fixing strength of the elastic arm 8 relative to the positioning strip 10 can be enhanced.

In the present embodiment, the positioning bar 10 is a strip-shaped tooth structure formed by cutting and stamping from the bottom side of the connecting plate 4 upward, and is integrally formed with the connecting plate 4, so that the rigidity and strength of the joint between the two can be ensured, and the processing efficiency of automatic operation can be increased.

Embodiment 2: as shown in fig. 9 to 13, the difference from embodiment 1 is that the second locking structure includes an elastic rod 21 with one end fixed on the connecting plate 4 and a second protrusion 22 arranged at the other end of the elastic rod 21, a plurality of second locking grooves 23 matched with the second protrusion 22 are formed on the outer contour of the fixing portion 7, the number of the second locking grooves 23 of the fixing portion 7 is at least seven, and the second locking grooves 23 are uniformly distributed on the outer edge of the fixing portion 7 along an arc-shaped trajectory, so as to form an indexing structure similar to the arc-shaped trajectory of embodiment 1. Two parallel and spaced operation plates 24 are convexly arranged on two opposite sides of the fixing part 7, and the operation plates 24 are formed by extending upwards and vertically from the top surface of the fixing part 7. When the refrigerator is used, the fixing portion 7 is driven to rotate by engaging the operation tool with the operation plate 24, the interlocking portion 14 is interlocked with the fixing portion 7 to drive the rotation shaft 15 to rotate, and the gap between the refrigerator door 300 and the refrigerator main body 100 is adjusted (here, the cam 13 functions in the same manner as in embodiment 1, and the operation principle is described in detail in embodiment 1). The fixing part 7 rotates to enable the second protrusion 22 of the second locking structure and the second clamping groove 23 of the first locking structure to move relatively, namely, the second protrusion 22 moves from the second clamping groove 23 of the initial position to the second clamping groove 23 of one of the two sides of the initial position, after no external force continues to drive the fixing part 7 to rotate, the second protrusion 22 keeps clamped with the second clamping groove 23, and further clamps the adjusted fixing part 7, so that the stability after the gap between the refrigerator main body 100 and the refrigerator door 300 is adjusted is enhanced, because the elastic rod 21 has elasticity, relative rotation between the second protrusion 22 and the second clamping groove 23 is facilitated when the fixing part 7 rotates, an arc transition surface is arranged between the surfaces where the second protrusion 22 and the second clamping groove 23 are attached to each other, and the smoothness when the second protrusion 22 and the second clamping groove 23 move relative to each other is further improved.

In

embodiments

1 and 2, after the fixing portion 7 is sleeved on the interlocking portion 14, the top of the interlocking portion 14 is riveted to a positioning edge (not shown in the figures), so that the fixing portion 7 forms a clearance fit between the connecting plate 4 and the positioning edge of the interlocking portion 14, so as to position the fixing portion 7 in the vertical direction and prevent the fixing portion 7 from falling off from the interlocking portion 14,

embodiment 3: as shown in fig. 14-17, the difference from embodiment 1 is that an elastic pin 33 is disposed at a terminal of the fixing portion 7 far away from the linking portion 14, the second locking structure includes a plurality of limiting holes 31 disposed on the connecting plate 4, the elastic pin 33 and the limiting holes 31 are in inserting fit in the vertical direction, the plurality of limiting holes 31 on the connecting plate 4 are annularly arranged with a central axis of the rotating shaft 15 of the linking portion 14 as a center, a pin hole 37 is disposed at a terminal of the fixing portion 7 far away from the linking portion 14, the pin hole 37 is selectively located directly above each limiting hole 31, the elastic pin 33 penetrates through the pin hole 37, in an initial position, the elastic pin 33 penetrates through the pin hole 37 to be in clamping connection with the limiting hole 31 in a middle position, then when a gap between the refrigerator door 300 and the refrigerator main body 100 needs to be adjusted, the elastic pin 33 is taken out of the limiting hole 31 (but not separated from the pin hole 37), the rotating fixing portion 7 can drive the linking portion 14 to rotate, so as to drive the hinge shaft 12 to rotate, thereby drive the refrigerator door 300 to adjust the gap between the refrigerator door 300, and at the same time, after the gap between the refrigerator door 300 is adjusted, the elastic pin 33 is finely adjusted, so that the refrigerator door 300 is inserted into the refrigerator main body 100, thereby enhancing the stability of the refrigerator door. Spacing hole 31 of connecting plate 4 evenly distributed forms the graduation structure of the arc orbit of type in

implementation mode

1 and 2 on the arc orbit to the rotation angle of accurate control fixed part 7.

The fixing portion 7 comprises a base plate portion 39, the position of the elastic pin 33 fixed at the tail end of the base plate portion 39 is further provided with an adjusting portion 32 for elastically adjusting the elastic pin 33, the adjusting portion 32 comprises a horizontal segment 321 parallel to and spaced from the base plate portion 39 and a vertical segment 322 connected with the base plate portion 39, the horizontal segment 321 of the adjusting portion 32 is located right above the base plate portion 39, an insertion hole 38 is formed in the horizontal segment 321 of the adjusting portion 32, the insertion hole 38 is located right above the pin hole 37, and the elastic pin 33 sequentially penetrates through the insertion hole 38, the pin hole 37 and the limiting hole 31 in clamping connection.

In this embodiment, an elastic adjustment space is formed between the horizontal section 321 and the fixing portion 7, the elastic pin 33 includes a head portion 331 and a rod portion 332 that are integrally formed, the rod portion 332 is sleeved with an elastic member 36 (such as a spring, an elastic sheet, or a torsion spring, and in this embodiment, a spring is preferred), the rod portion 332 is further provided with an elastic abutting structure (not shown), and the elastic member 36 is located between the elastic abutting structure and the horizontal section 321. The elastic pin 33 is pulled upwards, the elastic abutting structure is pressed upwards against the elastic piece 36, at this time, the elastic pin 33 is separated from the limiting hole 31, after the fixing part 7 is rotated to a proper adjusting position, the elastic pin 33 is loosened, the elastic piece 36 releases the elastic force to drive the elastic pin 33 to be inserted into the limiting hole 31, and the holding force of the elastic pin 33 relative to the limiting hole 31 is provided. The adjusting mode facilitates the adjustment of the elastic pin 33 and the limiting hole 31 and the follow-up fixation of the elastic pin 33, simplifies the operation and enables the operation to be more convenient and faster.

The top of linkage portion 14 is equipped with mounting hole 35, and fixedly connected with stopper 34 in the mounting hole 35 for prevent that fixed part 7 from breaking away from linkage portion 14, thereby improve the stability of screens subassembly. The specific fixing part 7 is arranged to be a rectangular plate-shaped structure, and two sides of the plate-shaped structure are parallel sides, so that the rotating operation of the operated tool is facilitated.

The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

The above-mentioned embodiments only express embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an adjust hinge for connect in a box with between the chamber door that sets up on the box, its including rotationally connect the hinge pin of chamber door and be fixed in the hinge seat of box, its characterized in that: the hinge base comprises a fixing plate and a connecting plate, the fixing plate is fixed on the box body, the operating part further comprises a limiting mechanism, the limiting mechanism comprises a first locking structure connected with the linkage part and a second locking structure fixed with the connecting plate, and the hinge shaft and the connecting plate are relatively fixed when in the locking position; in the active position, the hinge axis is movable relative to the web, one of the first and second locking structures providing an indexing locking structure and the other providing a locking portion for selective locking engagement with one of the indexing portions of the indexing locking structure.

2. The adjustment hinge according to claim 1, characterized in that: the connecting structure is particularly arranged to be a cam structure, and the linkage part is eccentrically connected to the cam structure relative to the hinge shaft.

3. The adjusting hinge according to claim 2, characterized in that: the linkage part is rotatably connected to the hinge seat, and when the operation part is operated, the linkage part rotates relative to the hinge seat and rotates by taking a first axis as a rotation center.

4. The adjustment hinge according to claim 3, characterized in that: the hinge seat is provided with an opening, the top of the linkage part penetrates through the opening, the operating part is arranged at the top of the linkage part, and the operating part and the hinge shaft are respectively located on two sides of the hinge seat.

5. The adjustment hinge according to claim 3, characterized in that: the axis of the hinge shaft is a second axis, and the first axis and the second axis are parallel and arranged at intervals.

6. The adjustment hinge according to claim 4, characterized in that: the operating part comprises a fixing part fixedly connected with the linkage part, and the fixing part limits the linkage part to be separated from the upward movement of the hinge seat.

7. The adjustment hinge according to claim 6, characterized in that: the operating portion further includes two opposite parallel side surfaces formed at the fixing portion.

8. The adjustment hinge according to claim 7, characterized in that: the fixing part is provided with a through hole, the shape of the through hole is consistent with the outer contour of the top of the linkage part, and the fixing part is fixedly sleeved on the linkage part through the through hole.

9. The adjustment hinge according to claim 6, characterized in that: the first locking structure is an elastic arm, a first protrusion is arranged on the elastic arm to serve as the locking portion, the second locking structure is a positioning strip fixed on the connecting plate, a plurality of first clamping grooves matched with the first protrusion are arranged on the positioning strip, the positioning strip serves as the indexing type locking structure, each first clamping groove is an indexing part, and the first protrusion is clamped with the first clamping groove.

10. The adjustable hinge according to claim 9, wherein one end of the elastic arm is fixedly connected to the fixing portion, the other end of the elastic arm is an arc-shaped arm, and the first protrusion is disposed on an outer side of the arc-shaped arm.

11. The adjustment hinge according to claim 6, characterized in that: the second locking structure is an elastic rod with one end fixed on the connecting plate, the other end of the elastic rod is provided with a second protrusion serving as the locking part, the first locking structure is a plurality of second clamping grooves which are arranged on the outer contour of the fixing part and matched with the second protrusion, the fixing part is the indexing type locking structure, each second clamping groove is an indexing part, and the second protrusion is clamped with the second clamping groove.

12. The adjusting hinge according to claim 11, characterized in that: the operation part also comprises two operation plates which are symmetrically arranged on the fixed part.

13. The adjusting hinge according to claim 6, characterized in that: the first locking structure is an elastic pin arranged at one end of the fixing part, the elastic pin is the locking part, the second locking structure is a plurality of limiting holes arranged on the hinge seat, the limiting holes are indexing locking structures, each limiting hole is an indexing part, and the elastic pin is in plug-in fit with one of the limiting holes.

14. The adjustment hinge according to claim 13, characterized in that: the fixing part is provided with a pin hole, the elastic pin is in plug-in fit with the pin hole, one side, away from the linkage part, of the fixing part is provided with an adjusting part, the adjusting part is provided with an inserting hole, the inserting hole is located right above the pin hole, and the elastic pin sequentially penetrates through the inserting hole, the pin hole and the limiting hole in clamping connection.

15. The adjustment hinge according to claim 14, characterized in that: an elastic space is formed between the adjusting portion and the fixing portion, an elastic piece is sleeved outside the elastic pin, an elastic abutting structure is arranged on the bottom side of the elastic piece of the elastic pin, and the elastic piece is located between the elastic abutting structure and the adjusting portion.