Unlocking assembly, anti-misoperation linkage mechanism, double-side door opening type door body and refrigerator

Abstract

The application relates to the technical field of refrigerators, and provides an unlocking assembly, which comprises a support sleeve, a movable sleeve, a pressing sleeve, a pressing rack outside the pressing sleeve, a sliding rod, an unlocking elastic element, an upper hinge shaft, a lower pressing gear, a lower shaft sleeve, a sliding rail element and a lower fixed shaft sleeve. An unlocking process is as follows: the lower movable shaft sleeve is horizontally moved and separated from the lower fixed shaft sleeve; the lower pressing gear is rotated to compress the unlocking elastic element; after the elastic force exceeds the magnetic attraction force, the upper hinge shaft is separated from the upper shaft sleeve; a reset process is as follows: the unlocking force is removed, the magnetic attraction force drives the sliding rod to move upwards, and the reset elastic element drives the movable shaft sleeve to reset. Therefore, the upper and lower hinges are simultaneously unlocked through the vertical downward movement of the sliding rod and the movable shaft sleeve; and the upper magnetic attraction force is automatically reset. The operation is stable, reliable and convenient, and the unlocking of the single-shaft hinge is realized. The application provides a mistaken opening prevention linkage mechanism, a double-side door opening type door body and a refrigerator.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of refrigerators, and particularly relates to an unlocking assembly, a mistaken opening prevention linkage mechanism, a double-side door opening type door body and a refrigerator. BACKGROUND

[0002] As disclosed in Chinese Patent 202321190105.9, the door body of a refrigerator can be opened from either side according to personal habits.

[0003] Compared with the single-axis hinge structure of a conventional refrigerator, the door body of the patent has two axes on each side, and a groove structure is provided to cooperate with the two axes. Although two-side door opening can be achieved, the gap between the hinge shaft and the groove will increase over time, thereby affecting the stability of the door body rotation.

[0004] The existing single-axis hinge structure, such as the structure disclosed in Chinese Patent CN219492036U, is usually a hinge shaft cooperating with a shaft sleeve. However, the hinge shaft and the shaft sleeve are respectively installed on the cabinet and the door body, and the cooperation relationship between the two cannot be released during use, so the single-axis hinge structure cannot be applied to the double-side door opening scene.

[0005] In summary, the prior art has obvious inconvenience and defects in actual use, and therefore needs to be improved. SUMMARY

[0006] In view of the above defects, the present application mainly provides an unlocking assembly to solve the technical problem that the cooperation structure of the single-axis hinge is fixed and cannot be unlocked.

[0007] In order to solve the above problems, the present application provides an unlocking assembly, comprising:

[0008] A support sleeve movably sleeved with a pressing sleeve capable of sliding in the vertical direction; a vertically arranged pressing rack is fixed on the outer side wall of the pressing sleeve;

[0009] A sliding rod is slidingly sleeved in the pressing sleeve; a force receiving ring is fixed on the outer wall of the sliding rod below the pressing sleeve; the outer part of the sliding rod is further sleeved with an unlocking elastic member abutting against the pressing sleeve and the force receiving ring at both ends;

[0010] An upper shaft sleeve is fixedly connected to the top of the sliding rod;

[0011] An upper hinge shaft is in sleeved cooperation with the upper shaft sleeve; the lower end surface of the upper hinge shaft is in magnetic attraction cooperation with the inner bottom surface of the upper shaft sleeve;

[0012] A pressing gear is rotationally arranged on the support sleeve and is in meshing cooperation with the pressing rack; the pressing gear is further coaxially connected with a driving wheel;

[0013] A lower shaft sleeve is arranged below the slide rod and is sleeved with a lower hinge shaft; the lower shaft sleeve comprises a lower fixed shaft sleeve and a lower movable shaft sleeve;

[0014] A slide rail piece is movable in the horizontal direction; the slide rail piece is fixed to the lower movable shaft sleeve and is drivingly connected to the driving wheel;

[0015] In the unlocking process, the slide rail piece is moved backward in the horizontal direction by applying an unlocking force, thereby driving the lower movable shaft sleeve to move horizontally and separate from the lower fixed shaft sleeve, so as to form a space for the lower hinge shaft to enter and exit;

[0016] The driving wheel and the pressing gear are driven to rotate, thereby driving the pressing sleeve to move vertically downward to compress the unlocking elastic piece and accumulate elastic energy of the unlocking elastic piece; when the elastic force accumulated by the unlocking elastic piece exceeds the magnetic attraction force between the upper hinge shaft and the upper shaft sleeve, the elastic energy is released to drive the slide rod to move vertically downward, so that the upper hinge shaft is separated from the upper shaft sleeve; the lower end of the slide rod enters the space;

[0017] Further comprising a reset elastic piece, which is configured to be compressed and accumulate elastic energy in the unlocking process;

[0018] In the reset process, the unlocking force is removed, the magnetic attraction force between the upper hinge shaft and the upper shaft sleeve drives the slide rod to move vertically upward, so that the lower end of the slide rod is away from the space; then, the reset elastic piece releases the elastic energy to reset the movable shaft sleeve.

[0019] According to the unlocking assembly, a limiting plate is fixed to the lower movable shaft sleeve; the limiting plate is configured to, in the unlocking process, the lower end of the slide rod enters the space and abuts against the limiting plate; the vertical downward movement of the slide rod is limited, so that the distance between the upper hinge shaft and the upper shaft sleeve is kept within the effective range of the magnetic attraction force; when the slide rod abuts against the limiting plate, the distance between the lower end surface of the upper hinge shaft and the inner bottom surface of the upper shaft sleeve is not more than 15 mm.

[0020] According to the unlocking assembly, the driving wheel is a wire wheel, a pull rope is wound around the wire wheel, and the pull rope is further connected to the slide rail piece.

[0021] According to the unlocking assembly, a disc shaft is rotatably arranged on the bracket sleeve, a torsion spring is connected between the disc shaft and the bracket sleeve; one end of the disc shaft is fixed to the driving wheel, and the other end is fixed to a pawl disc, and the pawl disc is provided with a pawl.

[0022] The pressing gear is coaxially connected to a ratchet sleeve that is movably sleeved with the pawl disc; the inner wall of the ratchet sleeve is annularly provided with a ratchet tooth that is matched with the pawl.

[0023] According to the unlocking assembly, the driving wheel is a driving gear, and a driving rack that is drivingly matched with the driving gear is fixed to the slide rail piece.

[0024] The driving rack is connected with a first transmission gear, the first transmission gear is connected with a second transmission gear, and the second transmission gear is connected with the driving gear.

[0025] The anti-misoperation linkage mechanism comprises two groups of the unlocking assemblies arranged in mirror images, a linkage assembly arranged between the two unlocking assemblies, and a lower decoration condition.

[0026] The linkage assembly comprises the sliding rail member arranged in the lower decoration condition, and two pairs of handle members arranged in abutment, each handle member being connected with the sliding rail member of an unlocking assembly.

[0027] A guide pin is fixed on the handle member, and a guide groove matched with the guide pin is formed on the lower decoration condition.

[0028] An inclined blocking surface is arranged on the handle member, a rotating plate is connected between the handle member and the sliding rail member, and two ends of the rotating plate are rotatably connected with the handle member and the sliding rail member.

[0029] According to the anti-misoperation linkage mechanism, a sliding groove member is further arranged between the handle member and the sliding rail member and fixed in the lower decoration condition, a clearance hole for avoiding the rotating plate is formed in the sliding groove member, and the sliding rail member is slidably sleeved in the sliding groove member.

[0030] The sliding rail member is plate-shaped, and wheel grooves are arranged on the upper and lower sides of the sliding rail member.

[0031] According to the anti-misoperation linkage mechanism, the linkage assembly further comprises a locking spring arranged between the sliding rail members of the two unlocking assemblies.

[0032] The door body has two groups of the unlocking assemblies or has the anti-misoperation linkage mechanism.

[0033] An upper clearance gap for the upper hinge shaft to pass through is arranged at the joint position of the upper decoration condition and the end blocking member.

[0034] A lower clearance gap for the lower hinge shaft to pass through is arranged at the joint position of the lower decoration condition and the end blocking member.

[0035] Alternatively, the linkage assembly of the anti-misoperation linkage mechanism is arranged in the lower decoration condition.

[0036] A refrigerator, comprising a cabinet, and a double-side opening door body mounted on the cabinet;

[0037] Upper and lower hinge plates are fixed on the cabinet and located on the upper and lower sides of the door body respectively; the upper hinge plate is provided with the upper hinge shaft, and the lower hinge plate is provided with the lower hinge shaft.

[0038] In summary, the unlocking assembly of the present application can realize the simultaneous unlocking of the upper and lower hinges through the vertical downward movement of the slide rod and the lower movable shaft sleeve; and the automatic reset through the magnetic attraction force between the upper hinge shaft and the upper shaft sleeve. The operation is stable and reliable, and convenient to operate, realizing the unlocking and reset operation of the hinge shaft and the shaft sleeve cooperation of the single-shaft hinge, expanding the application range of the single-shaft hinge. The present application provides a misoperation prevention linkage mechanism, comprising two groups of mirror image arranged unlocking assemblies; one group of unlocking assemblies is unlocked, and the unlocking operation of the other group of unlocking assemblies is simultaneously limited, avoiding the situation that two groups of unlocking assemblies are opened at the same time. The present application provides a double-side opening door body and a refrigerator, which can be opened from any side while the other side remains locked, avoiding misoperation. The embedded design of the refrigerator is also realized. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a structural schematic view of the door body of the present application;

[0040] Figure 2 is a structural schematic view of the A area in the present application; Figure 1

[0041] Figure 3 is a partial exploded structural schematic view of the B direction in the present application; Figure 2

[0042] Figure 4 is an internal structural schematic view of the C direction in the present application; Figure 3

[0043] Figure 5 is a working state schematic view of the unlocking assembly in the present application; Figure 4

[0044] Figure 6 is an exploded structural schematic view of part of the area in the present application; Figure 4

[0045] Figure 7 is a structural schematic view of the E direction in the present application; Figure 5

[0046] Figure 8 is a structural schematic view of an embodiment of the D direction in the present application; Figure 4

[0047] Figure 9 is a structural schematic view of the misoperation prevention linkage mechanism of the present application; ​​​​​​​

[0048] Figure 10 is Figure 9 a top structure schematic diagram of the refrigerator of the present application;

[0049] Figure 11 is a structure schematic diagram of the refrigerator of the present application;

[0050] In the figure: 1 - upper decoration condition, 11 - upper giving gap, 12 - upper hinge shaft, 13 - upper shaft sleeve, 14 - upper hinge plate; 2 - lower decoration condition, 21 - lower giving gap, 22 - lower fixed shaft sleeve, 23 - lower movable shaft sleeve, 231 - limiting plate; 24 - lower hinge shaft, 25 - guide groove, 26 - connecting claw, 27 - lower hinge plate, 28 - driving rack, 281 - first transmission gear, 282 - second transmission gear; 3 - support sleeve, 31 - driving wheel, 311 - ratchet disc, 312 - ratchet, 313 - disc shaft; 32 - pressing gear, 321 - ratchet sleeve; 33 - pressing sleeve, 331 - pressing rack; 34 - unlocking elastic piece, 35 - slide rod, 351 - force ring; 36 - slide rail piece, 361 - wheel groove; 37 - locking spring; 4 - reset elastic piece, 5 - handle piece, 51 - guide pin, 52 - blocking surface, 53 - sliding groove piece, 531 - guide wheel, 532 - giving hole; 54 - rotating plate; 100 - door body, 101 - magnetic door seal, 102 - end blocking piece; 200 - box body. DETAILED DESCRIPTION

[0051] Referring to Figure 3 and 4 , the present application provides an unlocking assembly, comprising:

[0052] A support sleeve 3, a pressing sleeve 33 capable of sliding in a vertical direction is movably sleeved in the support sleeve 3; a pressing rack 331 vertically arranged is fixed on the outer sidewall of the pressing sleeve 33;

[0053] A slide rod 35 is sleeved in the pressing sleeve 33; a force ring 351 located below the pressing sleeve 33 is fixed on the outer wall of the slide rod 35; an unlocking elastic piece 34 with two ends abutting against the pressing sleeve 33 and the force ring 351 is further sleeved on the outside of the slide rod 35;

[0054] An upper shaft sleeve 13 is fixed on the top of the slide rod 35;

[0055] An upper hinge shaft 12 is sleeved with the upper shaft sleeve 13; the lower end surface of the upper hinge shaft 12 is magnetically attracted to the inner bottom surface of the upper shaft sleeve 13;

[0056] Optionally, the upper hinge shaft 12 of the present application is made of magnetic material, preferably strong magnetic material such as neodymium magnet; the upper shaft sleeve 13 is made of magnetic conductive material, or a magnetic attraction layer made of magnetic material is provided on the inner bottom surface of the upper shaft sleeve 13. The upper hinge shaft 12 and the upper shaft sleeve 13 are magnetically attracted and matched, and the two can be separated by overcoming the magnetic attraction force.

[0057] The lower pressing gear 32 is rotatably arranged on the bracket sleeve 3 and is in meshing cooperation with the lower pressing rack 331; the lower pressing gear 32 is also coaxially connected with the driving wheel 31;

[0058] The lower shaft sleeve is arranged below the sliding rod 35 and is sleeved with the lower hinge shaft 24; the lower shaft sleeve includes a lower fixed shaft sleeve 22 and a lower movable shaft sleeve 23;

[0059] The lower fixed shaft sleeve 22 and the lower movable shaft sleeve 23 accommodate the lower hinge shaft 24 after being combined; the lower movable shaft sleeve 23 can be moved in the horizontal direction and separated from the lower fixed shaft sleeve 22, so that the lower hinge shaft 24 is separated from the lower shaft sleeve.

[0060] The sliding rail member 36 can be moved in the horizontal direction; the sliding rail member 36 is fixedly connected with the lower movable shaft sleeve 23 and is drivingly connected with the driving wheel 31;

[0061] Combining Figure 5 The unlocking process: the unlocking force is applied to move the sliding rail member 36 backward in the horizontal direction, drive the lower movable shaft sleeve 23 to move horizontally and separate from the lower fixed shaft sleeve 22, so that a space allowing the lower hinge shaft 24 to enter and exit is formed between the two;

[0062] The driving wheel 31 and the lower pressing gear 32 are driven to rotate, and then the lower pressing sleeve 33 is vertically moved downward to compress the unlocking elastic member 34, so that the unlocking elastic member 34 accumulates elastic energy; when the elastic force accumulated by the unlocking elastic member 34 exceeds the magnetic attraction force between the upper hinge shaft 12 and the upper shaft sleeve 13, the unlocking elastic member 34 releases the elastic energy to drive the sliding rod 35 to move vertically downward, so that the upper hinge shaft 12 is separated from the upper shaft sleeve 13; the lower end of the sliding rod 35 enters the space and blocks the self-resetting of the lower movable shaft sleeve 23.

[0063] Optionally, at this time, the unlocking assembly is rotated by a certain angle, so that the upper hinge shaft 12 is separated from the upper shaft sleeve 13, and the lower hinge shaft 24 is separated from the lower shaft sleeve from the space; the unlocking of the upper and lower hinge structures is realized. After the unlocking of the upper and lower hinge structures, the unlocking force can be removed, and at this time, the lower end of the sliding rod 35 is located in the space and blocks the resetting of the lower movable shaft sleeve 23; it also avoids the self-resetting of the lower movable shaft sleeve 23 to block the return of the lower hinge shaft 24 to the lower shaft sleeve.

[0064] The person skilled in the art can adaptively set the relationship between the rear movement of the sliding rail 36 and the energy storage of the unlocking elastic member 34, so as to adapt them to realize the synchronous unlocking of the upper and lower hinge structures.

[0065] The reset elastic member 4 is further included, which is configured to be compressed and accumulate elastic energy during the unlocking process.

[0066] As an embodiment, one end of the reset elastic member 4 abuts against the lower movable shaft sleeve 23, and the other end abuts against the force point; during the unlocking process, the lower movable shaft sleeve 23 retreats to compress the reset elastic member 4 and accumulate elastic energy.

[0067] The reset process: after the unlocking force is removed, the magnetic attraction force between the upper hinge shaft 12 and the upper shaft sleeve 13 drives the sliding rod 35 to vertically move upward until they are re-attracted; when the lower end of the sliding rod 35 leaves the accommodation space, the reset elastic member 4 releases the elastic energy to reset the movable shaft sleeve 23.

[0068] Preferably, the unlocking elastic member 34 and the reset elastic member 4 of the present application are both springs.

[0069] Optionally, the unlocking elastic member 34 and the reset elastic member 4 can also be elastic rubbers.

[0070] As an embodiment, the lower movable shaft sleeve 23 is fixedly connected with a limiting plate 231; the limiting plate 231 is configured to accommodate the lower end of the sliding rod 35 to abut against the limiting plate 231 during the unlocking process; the vertical downward movement of the sliding rod 35 is limited, so that the distance between the upper hinge shaft 12 and the upper shaft sleeve 13 is kept within the effective range of the magnetic attraction force; after the unlocking force is removed, the magnetic attraction force can move the sliding rod 35 upward to start the reset process.

[0071] The distance between the upper hinge shaft 12 and the upper shaft sleeve 13 is prevented from being too large to be out of the effective range of the magnetic attraction force, which affects the spontaneous execution of the subsequent reset action.

[0072] The downward movement of the sliding rod 35 needs to make the upper hinge shaft 12 separate from the upper shaft sleeve 13 while being within the effective range of the magnetic attraction force. Through verification of various schemes of the inventor, the distance of the upper hinge shaft 12 extending into the upper shaft sleeve 13 of the present application is not more than 12 mm; when the sliding rod 35 abuts against the limiting plate 231, the distance between the lower end surface of the upper hinge shaft 12 and the inner bottom surface of the upper shaft sleeve 13 is not more than 15 mm, preferably 12-15 mm; the distance can make the sliding rod 35 move upward after the unlocking force is removed.

[0073] As an embodiment, after the slide rod 35 is lowered, the elastic force of the unlocking elastic member 34 is basically released; at this time, the unlocking force can be continuously applied or increased, so that the lower pressing sleeve 33 continues to be lowered to compress the unlocking elastic member 34 again, accumulate the elastic force, resist the magnetic attraction force, and make the lower end of the slide rod 35 abut against the limiting plate 231, thereby keeping the unlocking state.

[0074] When the next operation is performed: the unlocking assembly is rotated, the upper hinge shaft 12 is out of position with the upper shaft sleeve 13, the magnetic attraction force between the two is disappeared, at this time the unlocking force can be removed, and the slide rod 35 still keeps the unlocking state.

[0075] Optionally, the slide rod 35 and the limiting plate 231 are both metal materials. When the elastic force of the unlocking elastic member 34 is released, the slide rod 35 is pushed to hit the limiting plate 231 at a certain speed, an impact sound is generated, reminding the user that the unlocking action is completed, and the next operation can be performed in time, so that the operation action of the user is standardized and coherent.

[0076] As an embodiment, the drive wheel 31 is a wire wheel, a pull rope is wound on the wire wheel, and the pull rope is further connected with a slide rail member 36; the slide rail member 36 is moved backward, the wire wheel is rotated through the pull rope, and the driving force is transmitted.

[0077] Referring to Figure 6 , as an embodiment, a disc shaft 313 is rotationally arranged on the support sleeve 3, and a torsion spring is connected between the disc shaft 313 and the support sleeve 3; one end of the disc shaft 313 is fixedly connected with the drive wheel 31, and the other end is fixedly connected with a pawl disc 311, and the pawl disc 311 is provided with a pawl 312;

[0078] The lower pressing gear 32 is coaxially connected with a ratchet sleeve 321 which is movably sleeved with the pawl disc 311, and the inner wall of the ratchet sleeve 321 is annularly provided with a ratchet tooth which is matched with the pawl 312;

[0079] In the unlocking process, the drive wheel 31 is rotated, the driving force is transmitted to drive the lower pressing gear 32 to rotate through the cooperation between the pawl 312 and the ratchet tooth. The torsion spring is energized in this process.

[0080] After the unlocking force is removed, the elastic force accumulated by the torsion spring can keep the pull rope in a tension state. In the resetting process, the torsion spring releases the energy, so that the drive wheel 31 is reversely rotated to wind up the pull rope and keep it in a tension state. The pull rope is prevented from being relaxed, so that the unlocking force cannot be completely transmitted and the unlocking is affected. When the drive wheel 31 is reversely rotated, the pawl 312 is disengaged from the ratchet tooth, so that the resistance of the lower pressing gear 32 to reset is reduced.

[0081] Referring to Figure 8 , as an embodiment, the drive wheel 31 is a drive gear, and a drive rack 28 which is drivingly matched with the drive gear is fixedly arranged on the slide rail member 36;

[0082] Further, based on the large distance between the drive rack 28 and the drive wheel 31, the drive rack 28 is engaged with the first transmission gear 281, the first transmission gear 281 is engaged with the second transmission gear 282, and the second transmission gear 282 is engaged with the drive wheel.

[0083] By setting the transmission ratio of the drive gear and the first transmission gear 281, the amount of backward movement of the slide rail 36 and the energy storage relationship of the unlocking elastic member 34 can be accurately controlled, so that they are matched, and the upper and lower hinge structures are unlocked synchronously.

[0084] Further, based on the optimization of the installation position, the slide rail 36 is further fixedly connected with the connecting claw 26, which is used for connecting the pull rope or mounting the drive rack 28.

[0085] The unlocking assembly of the present application can realize the simultaneous unlocking of the upper and lower hinges through the vertical downward movement of the slide rod 35 and the lower movable shaft sleeve 23, and can automatically reset through the magnetic attraction force between the upper hinge shaft 12 and the upper shaft sleeve 13. The operation is stable and reliable, convenient to operate, realizes the unlocking and resetting operation of the hinge shaft and the shaft sleeve cooperation of the single-shaft hinge, and expands the application range of the single-shaft hinge.

[0086] Referring to Figure 9 The present application also provides a misoperation prevention linkage mechanism, which comprises two groups of mirror image arranged unlocking assemblies; a linkage assembly is arranged between the two unlocking assemblies; and a lower decoration condition 2 is further provided with the linkage assembly;

[0087] In combination Figure 3 As an embodiment, the linkage assembly comprises: the slide rail 36 mounted in the lower decoration condition 2; referring to Figure 7 The lower decoration condition 2 is further provided with a handle 5, a guide pin 51 is fixedly arranged on the handle 5, a guide groove 25 matched with the guide pin 51 is arranged on the lower decoration condition 2, and the handle 5 is rotationally connected with the slide rail 36;

[0088] When the handle 5 is pulled, the guide pin 51 is limited by the track of the guide groove 25, so that the handle 5 drives the slide rail 36 to move backward.

[0089] Optionally, the bracket sleeve 3 can be fixedly mounted on the lower fixed shaft sleeve 22, and the lower fixed shaft sleeve 22 is fixedly arranged on the lower decoration condition 2.

[0090] Optionally, the lower decoration condition 2 is provided with the force point for abutting against the resetting elastic member 4, one end of the resetting elastic member 4 abuts against the lower movable shaft sleeve 23, and the other end abuts against the lower decoration condition 2.

[0091] Further, a rotating plate 54 is connected between the handle 5 and the slide rail 36, and the two ends of the rotating plate 54 are rotationally connected with the handle 5 and the slide rail 36, respectively.

[0092] More preferably, a sliding groove 53 is arranged between the handle 5 and the sliding rail 36 and fixed in the lower decorative condition 2; the sliding groove 53 is provided with a clearance hole 532 for avoiding the rotating plate 54; the sliding rail 36 is slidingly sleeved in the sliding groove 53; the sliding rail 36 is constrained to move in the horizontal direction.

[0093] Further, the sliding rail 36 is plate-shaped and provided with wheel grooves 361 on the upper and lower sides; the sliding groove 53 is provided with two rows of guide wheels 531 corresponding to the wheel grooves 361 on the two sides; the sliding rail 36 is supported by the two rows of guide wheels 531, thereby reducing the friction between the sliding rail 36 and the sliding groove 53 and further reducing the resistance in the unlocking and resetting processes.

[0094] The handle 5 of the two unlocking assemblies is arranged in abutment, and the handle 5 is provided with an inclined blocking surface 52; the handle 5 and the sliding rail 36 are connected by the rotating plate 54; the two ends of the rotating plate 54 are rotatably connected to the handle 5 and the sliding rail 36, respectively.

[0095] In combination Figure 10 When one of the unlocking assemblies is operated to be unlocked, the handle 5 of the unlocking assembly is pulled out from the lower decorative condition 2; in combination Figure 7 Since the rotating plate 54 is pulled apart, the handle 5 is moved outward relative to the lower decorative condition 2 and rotates, so that one end of the blocking surface 52 is blocked outside the handle 5 of the other unlocking assembly. At this time, the handle 5 of the other unlocking assembly cannot be pulled, so that the unlocking operation of the other unlocking assembly is limited, thereby avoiding the situation that the two unlocking assemblies are opened at the same time.

[0096] As an embodiment, the linkage assembly further comprises a locking spring 37 arranged between the sliding rails 36 of the two unlocking assemblies; when one of the unlocking assemblies is in the unlocked state, the sliding rail 36 of the unlocking assembly is moved horizontally backward to compress the locking spring 37, thereby locking the sliding rail 36 of the other unlocking assembly and increasing the unlocking of the other unlocking assembly, thereby avoiding the misoperation of unlocking.

[0097] The embodiment increases the locking spring 37, and the scheme of abutting the two handles 5 forms double insurance, thereby avoiding the misoperation of opening.

[0098] Referring to Figure 1 and Figure 2 The application further provides a double-side opening door body, and the door body 100 is provided with the anti-misopening linkage mechanism.

[0099] The upper and lower ends of the door body 100 are respectively provided with upper and lower decoration conditions 1 and 2; both sides of the door body 100 are provided with end stop pieces 102; the end stop pieces 102 are internally provided with a sliding rod 35 of an unlocking assembly, an upper shaft sleeve 13, a lower shaft sleeve and a bracket sleeve 3;

[0100] The lower decoration condition 2 is internally provided with a linkage assembly of the anti-misopening linkage mechanism;

[0101] The intersection position of the upper decoration condition 1 and the end stop piece 102 is provided with an upper accommodation gap 11 for the upper hinge shaft 12 to enter and exit;

[0102] The intersection position of the lower decoration condition 2 and the end stop piece 102 is provided with a lower accommodation gap 21 for the lower hinge shaft 24 to enter and exit;

[0103] When the unlocking assembly on any one side is in an unlocking state, the door body 100 can rotate around the upper hinge shaft 12 and the lower hinge shaft 24 on the other side; the door opening function of both sides of the door body 100 is realized.

[0104] Better, the door body 100 is further provided with a magnetic door seal 101.

[0105] As an embodiment, the application further provides a double-side door opening type door body, which has two groups of the unlocking assembly; each group of the unlocking assembly can be provided with an independent control piece to control unlocking and resetting, so that the door opening function of any one side of the door body 100 is realized.

[0106] Optionally, the control piece can be a device for controlling the movement of the sliding rail piece 36 in an electric control mode, such as an electric cylinder.

[0107] Referring to Figure 11 The application further provides a refrigerator, which comprises a cabinet 200, and the door body 100 is mounted on the cabinet 200.

[0108] The upper and lower hinge plates 14 and 27 are fixedly arranged on the upper and lower sides of the door body 100; the upper hinge plate 14 is provided with the upper hinge shaft 12, and the lower hinge plate 27 is provided with the lower hinge shaft 24.

[0109] The refrigerator of the application can be opened from any one side, and the other side remains in a locked state to avoid misopening; after the door body 100 is opened, the user can release the handle piece 5, and the unlocking assembly can maintain the unlocking state; when the door body 100 is closed, the magnetic door seal 101 is attracted to the cabinet 200, and then the resetting process is automatically triggered. The operation is convenient, and the safety is high.

[0110] As an embodiment, the upper hinge (including the upper hinge shaft 12 and the upper shaft sleeve 13) and the lower hinge (the lower hinge shaft 24 and the lower shaft sleeve) of the present application are of the same specification, and are both single-shaft variable-track hinges (such as the hinge structure disclosed in CN 219492036 U), so that the door body 100 does not exceed the range of the outer side surface of the box body 200 after being opened, and the embedded design of the refrigerator is realized.

[0111] In summary, the present application provides an unlocking assembly, which realizes the simultaneous unlocking of the upper and lower hinges by vertically moving the sliding rod and the lower movable shaft sleeve, and automatically resets the upper hinge shaft and the upper shaft sleeve by magnetic attraction. The operation is stable and reliable, and convenient to operate, realizes the unlocking and resetting operation of the hinge shaft and the shaft sleeve of the single-shaft hinge, and expands the application range of the single-shaft hinge. The present application provides an anti-misopening linkage mechanism, which includes two groups of mirror-image arranged unlocking assemblies; one group of unlocking assemblies is unlocked, and at the same time, the unlocking operation of the other group of unlocking assemblies is limited, so that the situation of two groups of unlocking assemblies being opened at the same time is avoided. The present application provides a double-side opening door body and a refrigerator, which can be opened from any side, while the other side remains in a locked state, avoiding misopening. The embedded design of the refrigerator is also realized.

[0112] Of course, the present application can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application, but these corresponding changes and modifications should all belong to the protection scope of the claims attached to the present application.

Claims

1. An unlock assembly, comprising: The bracket sleeve movably sleeves a pressing sleeve capable of sliding in the vertical direction; a vertically arranged pressing rack is fixed on the outer side wall of the pressing sleeve; A sliding rod is movably sleeved in the pressing sleeve; a force receiving ring is fixed on the outer wall of the sliding rod below the pressing sleeve; the outer part of the sliding rod further sleeves an unlocking elastic member which respectively abuts against the pressing sleeve and the force receiving ring at both ends; An upper shaft sleeve is fixed at the top of the sliding rod; An upper hinge shaft is in sleeved connection with the upper shaft sleeve; the lower end surface of the upper hinge shaft is in magnetic attraction connection with the inner bottom surface of the upper shaft sleeve; A pressing gear is rotatably arranged on the bracket sleeve and is in meshing connection with the pressing rack; the pressing gear is further coaxially connected with a driving wheel; A lower shaft sleeve is arranged below the sliding rod and is in sleeved connection with a lower hinge shaft; The lower hinge shaft includes a lower fixed shaft sleeve and a lower movable shaft sleeve; A sliding rail member is capable of moving in the horizontal direction; the sliding rail member is fixed to the lower movable shaft sleeve and is in transmission connection with the driving wheel; Unlocking process: applying an unlocking force to make the sliding rail member move backward in the horizontal direction, drive the lower movable shaft sleeve to move horizontally and separate from the lower fixed shaft sleeve, so as to form a space for the lower hinge shaft to enter and exit between the two; drive the driving wheel and the pressing gear to rotate, thereby driving the pressing sleeve to move vertically downward to compress the unlocking elastic member and accumulate elastic energy of the unlocking elastic member; when the elastic force accumulated by the unlocking elastic member exceeds the magnetic attraction force between the upper hinge shaft and the upper shaft sleeve, the elastic energy is released to drive the sliding rod to move vertically downward, so that the upper hinge shaft is separated from the upper shaft sleeve; the lower end of the sliding rod enters the space; Further comprising a reset elastic member configured to be compressed and accumulate elastic energy during the unlocking process; Reset process: removing the unlocking force, the magnetic attraction force between the upper hinge shaft and the upper shaft sleeve drives the sliding rod to move vertically upward, so that the lower end of the sliding rod is away from the space; then, the reset elastic member releases the elastic energy to push the movable shaft sleeve to reset. The lower movable shaft sleeve is fixed with a limiting plate; the limiting plate is configured to: in the unlocking process, the lower end of the sliding rod enters the space and abuts against the limiting plate; limit the vertical downward movement of the sliding rail, so that the distance between the upper hinge shaft and the upper shaft sleeve is kept within the effective range of the magnetic attraction force; when the sliding rail abuts against the limiting plate, the distance between the lower end surface of the upper hinge shaft and the inner bottom surface of the upper shaft sleeve is not more than 15 mm.

2. The unlock assembly of claim 1, wherein, The driving wheel is a wire wheel, a pull rope is wound around the wire wheel, and the pull rope is further connected with the sliding rail member.

3. The unlock assembly of claim 1, wherein, A disc shaft is rotatably arranged on the bracket sleeve, and a torsion spring is connected between the disc shaft and the bracket sleeve; one end of the disc shaft is fixed with the driving wheel, and the other end is fixed with a pawl disc provided with a pawl; 4. The unlock assembly of claim 3, wherein, The pressing gear is coaxially connected with a ratchet sleeve in movable sleeved connection with the pawl disc, and the inner wall of the ratchet sleeve is annularly provided with ratchet teeth in cooperation with the pawl. The driving wheel is a driving gear, and a driving rack is fixed on the sliding rail member and is in transmission connection with the driving gear; 5. The unlock assembly of claim 1, wherein, The driving rack is in meshing connection with a first transmission gear, the first transmission gear is in meshing connection with a second transmission gear, and the second transmission gear is in meshing connection with the driving gear. ​ 6. A misoperation prevention linkage mechanism characterized by comprising: The unlocking assembly of any one of claims 1-5 is arranged in two groups of mirror images, and a linkage assembly is arranged between the two unlocking assemblies; a lower trim condition is further included; the linkage assembly is installed in the lower trim condition; The linkage assembly includes the slide rail member installed in the lower trim condition; two pairs of handle members are further installed in the lower trim condition, and each handle member is connected to the slide rail member of one unlocking assembly; A guide pin is fixed on the handle member, and a guide groove matched with the guide pin is formed on the lower trim condition; the handle member is rotatably connected to the slide rail member; An inclined blocking surface is arranged on the handle member; a rotating plate is connected between the handle member and the slide rail member; the rotating plate is rotatably connected to the handle member and the slide rail member at two ends thereof.

7. The anti-misopening linkage of claim 6, wherein, A slide groove member is further arranged between the handle member and the slide rail member and is fixed in the lower trim condition; the slide groove member is provided with a clearance hole for avoiding the rotating plate; the slide rail member is slidably sleeved in the slide groove member; The slide rail member is plate-shaped, and wheel grooves are arranged on the upper and lower sides of the slide rail member; the slide groove member is provided with two rows of guide wheels matched with the corresponding wheel grooves.

8. The anti-misopener linkage of claim 6, wherein, The linkage assembly further includes a locking spring arranged between the slide rail members of the two unlocking assemblies.

9. A double-leaf door characterized by, The door body is provided with an upper trim condition and a lower trim condition at the upper and lower ends thereof, respectively; end blocking members are arranged on both sides of the door body; the slide rod, the upper shaft sleeve, the lower shaft sleeve, and the bracket sleeve of the unlocking assembly are arranged in the end blocking members; An upper clearance gap for the upper hinge shaft to pass through is arranged at the joint position of the upper trim condition and the end blocking member; A lower clearance gap for the lower hinge shaft to pass through is arranged at the joint position of the lower trim condition and the end blocking member; Alternatively, the linkage assembly of the anti-misoperation linkage mechanism is arranged in the lower trim condition.

10. A refrigerator characterized by comprising: A box body is included, and the double-side door type door body of claim 9 is installed on the box body; Upper and lower hinge plates are fixed on the upper and lower sides of the door body, respectively; the upper hinge plate is provided with the upper hinge shaft, and the lower hinge plate is provided with the lower hinge shaft.

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