Cabinet door return structure and storage cabinet

Abstract

The utility model discloses a cabinet door return structure and a storage cabinet, belongs to the technical field of cabinet doors, and aims to overcome the defect that the cabinet door return torsion of an existing refrigerator is troublesome to adjust. A first fixing assembly in the return structure comprises a fixed adjusting piece and a rotating adjusting piece, a one-way rotating structure is arranged between the fixed adjusting piece and the rotating adjusting piece so that the rotating adjusting piece can rotate in a one-way mode relative to the fixed adjusting piece, and the first end of the return driving piece is fixed to the rotating adjusting piece. The torsion of the return driving part can be adjusted by rotating the rotation adjusting part, when the return driving part is subjected to torsion fatigue and the door is easily not tightly closed, the torsion of the return driving part can be increased by rotating the rotation adjusting part, the torsion adjustment is convenient, the sealing performance of the storage cabinet is ensured, and the maintenance cost of the storage cabinet is reduced; the service life of the storage cabinet is prolonged and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of cabinet door, and relates to a cabinet door returning structure and storage cabinet. BACKGROUND

[0002] A kind of refrigerator of existing includes cabinet and cabinet door, and cabinet door and cabinet are set to use steel wire to realize cabinet door automatic returning.The steel wire is fixed on the lower seat of cabinet, and cabinet door is automatically closed by the torsional force of steel wire.Cabinet door long period opens and closes door, and steel wire torsional fatigue, it is easy to cause door to close not tight phenomenon.Cabinet door is installed to cabinet, and it is very difficult to adjust the returning torsional force of cabinet door, usually needs to be inverted, pulls fixed pin, and is inserted fixed pin after being adjusted by special tool. SUMMARY

[0003] The utility model discloses a cabinet door returning structure and storage cabinet aiming at the problems existing in prior art, to overcome the defect that the returning torsional force adjustment of the cabinet door of prior art is more troublesome.

[0004] The utility model is realized as follows:

[0005] A kind of cabinet door returning structure, including returning drive part, first fixed component and second fixed component, the first fixed component and the second fixed component can be rotatably connected, and the both ends of the returning drive part are fixed on the first fixed component and second fixed component respectively;

[0006] It is characterized in that, the first fixed component includes fixed adjusting part and rotating adjusting part, one-way rotation structure is equipped between the fixed adjusting part and the rotating adjusting part, to enable the rotating adjusting part can be one-way rotated relative to the fixed adjusting part, and the first end of the returning drive part is fixed on the rotating adjusting part.

[0007] One-way rotation structure includes first tooth located on the fixed adjusting part or the rotating adjusting part and moving piece located on the rotating adjusting part or fixed adjusting part, and the moving piece has limiting portion on it;

[0008] When the moving piece is located at first position, the limiting portion cooperates with the first tooth, to prevent the rotating adjusting part from rotating relative to the fixed adjusting part to first direction;

[0009] When the moving piece is located at second position, the rotating adjusting part can be rotated relative to the fixed adjusting part to second direction.

[0010] Elastic member is equipped on the moving piece, to make the moving piece tend to move to the first position.

[0011] The rotating adjusting member has an assembly groove, the groove wall of the assembly groove has a mounting groove, the moving member is located in the mounting groove, and a first position depth of the mounting groove is less than a second position depth of the mounting groove.

[0012] The depth of the mounting groove gradually decreases from the middle to the two ends, a detachable limiting seat is arranged in the mounting groove, one end of the elastic member abuts against the moving member, and the other end of the elastic member abuts against the limiting seat.

[0013] The fixed adjusting member is provided with a limiting member, the limiting member cooperates with the groove wall of the assembly groove to prevent the fixed adjusting member from being separated from the rotating adjusting member;

[0014] The rotating adjusting member comprises an operation part and a connecting part, the assembly groove is located on the operation part, the connecting part is in a cylindrical shape and is rotatably matched on the second fixed assembly, the outer tangent circle diameter of the operation part is greater than the outer diameter of the connecting part, the connecting part has a multi-rib hole, the return driving member is a steel wire, and the steel wire is inserted into the multi-rib hole and fixed in the circumferential direction of the rotating adjusting member.

[0015] The fixed adjusting member comprises a connecting seat and a tooth head, the first tooth is located on the tooth head, and the connecting seat is in a multi-rib shape at an end away from the tooth head;

[0016] The connecting seat and the tooth head are integrally connected;

[0017] Alternatively, the tooth head and the connecting seat are separately connected, the connecting seat is provided with a mounting hole, the mounting hole is provided with an elastic clamping member, the tooth head has a connecting hole, the inner wall of the connecting hole is provided with a limiting groove, and the elastic clamping member is clamped in the limiting groove.

[0018] The one-way rotating structure comprises a one-way bearing, the fixed adjusting member has a mounting column, the inner sleeve of the one-way bearing is positioned in the circumferential direction of the mounting column, the outer sleeve of the one-way bearing is positioned in the circumferential direction of the rotating adjusting member, the mounting column is fixed with a blocking member, and the blocking member has a blocking part to prevent the one-way bearing from being separated from the mounting column.

[0019] A storage cabinet comprises the above-mentioned return structure and further comprises a cabinet body and a cabinet door, the first fixed assembly is fixed on the cabinet body, and the second fixed assembly is fixed on the cabinet door;

[0020] The second fixed assembly comprises a limiting block, an upper seat bushing and a sleeve, the return driving member is a steel wire, the lower end of the steel wire is fixed in the circumferential direction of the rotating adjusting member, the upper end of the rotating adjusting member is rotatably inserted into the upper seat bushing, the limiting block and the upper seat bushing are fixed in the circumferential direction through the cooperation of the multi-rib groove and the multi-rib, the upper seat bushing is fixed with the sleeve, the sleeve is fixed with the upper end of the steel wire, and the upper seat bushing is fixed on the cabinet door.

[0021] The lower hinge seat is fixed on the box body, the fixed adjusting part is fixed on the lower hinge seat, and the rotating adjusting part is exposed on the box body and the cabinet door.

[0022] The upper seat bushing has an abutting portion, the polygonal column is located below the abutting portion, and the abutting portion abuts against the upper surface of the limiting block.

[0023] The utility model has the following beneficial effects: the torsion of the returning driving part can be adjusted by rotating the rotating adjusting part, when the returning driving part appears torsion fatigue and is easy to cause the door to not close tightly, the rotating adjusting part can be rotated to increase the torsion of the returning driving part, the torsion is adjusted conveniently, the sealing property of the storage cabinet is ensured, the maintenance cost of the storage cabinet is reduced, the service life of the storage cabinet is prolonged, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the cabinet door of the first embodiment;

[0025] Figure 2 It is Figure 1 It is an enlarged view of the partial A;

[0026] Figure 3 It is a first angle schematic view of the returning structure of the first embodiment;

[0027] Figure 4 It is a second angle schematic view of the returning structure of the first embodiment;

[0028] Figure 5 It is an explosion structure schematic view of the returning structure of the first embodiment;

[0029] Figure 6 It is a structural schematic view after the rotating adjusting part is installed with the moving part of the first embodiment;

[0030] Figure 7 It is a sectional view structural schematic view of the rotating adjusting part of the first embodiment;

[0031] Figure 8 It is a first angle structural schematic view of the rotating adjusting part of the first embodiment;

[0032] Figure 9 It is a second angle structural schematic view of the rotating adjusting part of the first embodiment;

[0033] Figure 10 It is an explosion structure schematic view of the returning structure of the second embodiment;

[0034] Figure 11This is a schematic cross-sectional view of the regression structure of Example 2;

[0035] Figure 12 This is a schematic diagram of the exploded structure of the regression structure of Example 3;

[0036] Figure 13 This is a schematic cross-sectional view of the regression structure of Example 3;

[0037] Figure 14 This is a schematic diagram of the exploded structure of the regression structure of Example 4.

[0038] Explanation of the accompanying drawings: 100, cabinet door; 200, return drive member; 300, first fixed component; 310, fixed adjustment member; 311, first tooth; 312, limit member; 313, annular groove; 314, connecting seat; 315, tooth head; 316, mounting hole; 317, elastic clamping member; 318, connecting hole; 319, limit groove; 320, rotation adjustment member; 321, moving member; 322, limit portion; 323, elastic member; 324, assembly groove; 325, mounting groove; 326, limit seat; 327, operating portion; 328, connecting portion; 329, multi-faceted hole; 400, second fixed component; 410, limit block; 420, upper seat bushing; 421, abutment portion; 430, sleeve; 500, one-way bearing; 510, blocking member. DETAILED DESCRIPTION

[0039] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings to make the technical solution of the present invention easier to understand and grasp. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] Example 1

[0041] This embodiment provides a storage cabinet, including a box body, a cabinet door 100 and a regression structure, such as Figures 1-9 As shown, the return structure includes a return drive member 200, a first fixing assembly 300, and a second fixing assembly 400. The first fixing assembly 300 is fixed to the box body, and the second fixing assembly 400 is fixed to the cabinet door 100. In other optional embodiments, the first fixing assembly 300 can also be fixed to the cabinet door 100, and the second fixing assembly 400 can be fixed to the box body.

[0042] like Figures 3-5As shown, the first fixing assembly 300 and the second fixing assembly 400 are rotatably connected, and two ends of the return driving member 200 are fixed on the first fixing assembly 300 and the second fixing assembly 400 respectively; the first fixing assembly 300 comprises a fixed adjusting member 310 and a rotating adjusting member 320, and a one-way rotation structure is arranged between the fixed adjusting member 310 and the rotating adjusting member 320, so that the rotating adjusting member 320 can rotate in one direction relative to the fixed adjusting member 310, and the first end of the return driving member 200 is fixed on the rotating adjusting member 320.

[0043] The return driving member 200 in the embodiment is a steel wire, and in other alternative embodiments, the return driving member 200 can be a torsion spring. The rotating adjusting member 320 cannot rotate in the first direction, but can rotate in the second direction, and the rotating adjusting member 320 rotating in the second direction will cause the steel wire to twist, thereby increasing the torsion of the steel wire, and thereby increasing the driving force for the cabinet door 100 to rotate from the opening direction to the closing direction, appropriately improving the door closing speed of the cabinet door 100, and also improving the sealing performance of the cabinet door 100 and the cabinet. The rotating adjusting member 320 is exposed outside the cabinet door 100 and the cabinet, which is convenient for adjustment. In other alternative embodiments, the rotating adjusting member 320 can also be covered and shielded by a detachable cover.

[0044] Further, as shown in Figures 5-7 The one-way rotation structure comprises a first tooth 311 arranged on the fixed adjusting member 310 and a moving member 321 arranged on the rotating adjusting member 320, and the moving member 321 is provided with a limiting portion 322, which is a second tooth. When the moving member 321 is located at the first position, the limiting portion 322 cooperates with the first tooth 311 to prevent the rotating adjusting member 320 from rotating in the first direction relative to the fixed adjusting member 310; when the moving member 321 is located at the second position, the rotating adjusting member 320 can rotate in the second direction relative to the fixed adjusting member 310. In other alternative embodiments, the first tooth 311 can be arranged on the rotating adjusting member 320, and the moving member 321 can be arranged on the fixed adjusting member 310.

[0045] As shown in Figure 6 The moving member 321 is provided with an elastic member 323, so that the moving member 321 tends to move to the first position. In this way, it can be ensured that the moving member 321 can prevent the rotating adjusting member 320 from rotating in the first direction, and when the rotating adjusting member 320 rotates in the second direction, the first tooth 311 acts on the limiting portion 322 to drive the moving member 321 to move to the second position against the elastic force of the elastic member 323, the limiting portion 322 is disengaged from the blocking of the first tooth 311, so that the rotating adjusting member 320 can continue to rotate in the second direction.

[0046] AsFigure 6 、 9 As shown in FIG. 3, the rotating adjusting member 320 is provided with an assembly groove 324, the groove wall of the assembly groove 324 is provided with a mounting groove 325, the moving member 321 is located in the mounting groove 325, and the first position depth of the mounting groove 325 is less than the second position depth of the mounting groove 325. The moving member 321 moves to the deeper position to be out of the blocking effect on the first tooth 311.

[0047] Further, the depth of the mounting groove 325 gradually decreases from the middle to both ends, the mounting groove 325 is provided with a detachable limiting seat 326, one end of the elastic member 323 abuts against the moving member 321, and the other end abuts against the limiting seat 326. In this way, the limiting seat 326 and the moving member 321 can interchange positions, so that the return structure can be adapted to left and right opening doors. The elastic member 323 is a spring, and both ends are respectively installed in the corresponding hole positions of the moving member 321 and the limiting seat 326, to improve the stability of spring installation.

[0048] In other optional embodiments, the mounting groove 325 can also be half of the embodiment, and the limiting seat 326 is cancelled, and one end of the elastic member 323 directly abuts against the rotating adjusting member 320.

[0049] As shown in FIG. 3, the rotating adjusting member 320 is provided with an assembly groove 324, the groove wall of the assembly groove 324 is provided with a mounting groove 325, the moving member 321 is located in the mounting groove 325, and the first position depth of the mounting groove 325 is less than the second position depth of the mounting groove 325. The moving member 321 moves to the deeper position to be out of the blocking effect on the first tooth 311. Figure 5 、 7 As shown in FIG. 3, the rotating adjusting member 320 is provided with an assembly groove 324, the groove wall of the assembly groove 324 is provided with a mounting groove 325, the moving member 321 is located in the mounting groove 325, and the first position depth of the mounting groove 325 is less than the second position depth of the mounting groove 325. The moving member 321 moves to the deeper position to be out of the blocking effect on the first tooth 311.

[0050] As shown in FIG. 3, the rotating adjusting member 320 is provided with an assembly groove 324, the groove wall of the assembly groove 324 is provided with a mounting groove 325, the moving member 321 is located in the mounting groove 325, and the first position depth of the mounting groove 325 is less than the second position depth of the mounting groove 325. The moving member 321 moves to the deeper position to be out of the blocking effect on the first tooth 311. Figure 8 As shown in FIG. 3, the rotating adjusting member 320 is provided with an assembly groove 324, the groove wall of the assembly groove 324 is provided with a mounting groove 325, the moving member 321 is located in the mounting groove 325, and the first position depth of the mounting groove 325 is less than the second position depth of the mounting groove 325. The moving member 321 moves to the deeper position to be out of the blocking effect on the first tooth 311.

[0051] Figures 3-5 ​As shown, the second fixing assembly 400 includes a stopper 410, an upper seat bushing 420, and a sleeve 430. The lower end of the steel wire is circumferentially fixed to the rotation adjustment member 320, and the upper end of the rotation adjustment member 320 is rotatably inserted into the upper seat bushing 420. The stopper 410 and the upper seat bushing 420 are circumferentially fixed by the cooperation of the multi-faceted groove and the multi-faceted column. The upper seat bushing 420 is fixed to the sleeve 430, and the sleeve 430 is fixed to the upper end of the steel wire. The upper seat bushing 420 is fixed to the cabinet door 100. A lower hinge seat is fixed to the cabinet body, and the fixing adjustment member 310 is fixed to the lower hinge seat. In other optional embodiments, the second fixing assembly 400 can also be an integrated single component.

[0052] like Figure 5 As shown, the fixed adjustment member 310 includes a connecting seat 314 and a tooth head 315. The first tooth 311 is located on the tooth head 315. The end of the connecting seat 314 away from the tooth head 315 is in a polygonal column shape and fixedly connected to the lower hinge seat. The connecting seat 314 and the tooth head 315 are integrally connected.

[0053] like Figure 5 As shown, the upper seat bushing 420 has an abutment portion 421, and the polygonal column is located below the abutment portion 421. The abutment portion 421 abuts against the upper surface of the limit block 410. During installation, the polygonal column of the upper seat bushing 420 is inserted into the polygonal groove from above the limit block 410, and the sleeve 430 is fixed to the upper seat bushing 420 by a pin.

[0054] Example 2

[0055] Embodiment 1 The connecting seat 314 and the tooth head 315 are integrally connected. In this embodiment, Figures 10-11 As shown, the tooth head 315 and the connecting seat 314 are separately connected, the connecting seat 314 is provided with a mounting hole 316, the mounting hole 316 is provided with an elastic clip 317, the tooth head 315 has a connecting hole 318, the inner wall of the connecting hole 318 is provided with a limiting groove 319, and the elastic clip 317 is clipped into the limiting groove 319.

[0056] The other structures of this embodiment are consistent with those of the first embodiment.

[0057] Example 3

[0058] The difference between this embodiment and the first embodiment lies in the unidirectional rotation structure. Specifically, Figures 12-13As shown, the one-way rotation structure comprises a one-way bearing 500, the fixing adjusting member 310 is provided with a mounting column, the inner sleeve of the one-way bearing 500 is positioned circumferentially on the mounting column, the outer sleeve of the one-way bearing 500 is positioned circumferentially on the rotating adjusting member 320, the mounting column is fixed with a blocking member 510, the blocking member 510 is provided with a blocking portion to prevent the one-way bearing 500 from being separated from the mounting column. The blocking member 510 is a screw fixed on the fixing adjusting member 310, the screw nut blocks the one-way bearing 500 from being separated from the mounting column.

[0059] The other structures of the embodiment are the same as those of Embodiment One.

[0060] Embodiment Four

[0061] In the embodiment, as shown, Figure 14 the upper seat bushing 420 is provided with an abutting portion 421, the multi-prism is located above the abutting portion 421, and the abutting portion 421 abuts against the lower surface of the limiting block 410. During installation, the multi-prism of the upper seat bushing 420 is passed through the multi-prism groove from below the limiting block 410, and the sleeve 430 is welded on the upper seat bushing 420. The upper seat bushing 420 is also welded on the limiting block 410.

[0062] The other structures of the embodiment are the same as those of Embodiment One.

Claims

1. A cabinet door return structure, comprising a return drive member (200), a first fixing assembly (300) and a second fixing assembly (400), wherein the first fixing assembly (300) and the second fixing assembly (400) are rotatably connected, and two ends of the return drive member (200) are respectively fixed to the first fixing assembly (300) and the second fixing assembly (400); It is characterized in that The first fixing assembly (300) comprises a fixed adjusting member (310) and a rotating adjusting member (320), wherein a one-way rotating structure is provided between the fixed adjusting member (310) and the rotating adjusting member (320), so that the rotating adjusting member (320) can rotate one-way relative to the fixed adjusting member (310), and the first end portion of the regressive driving member (200) is fixed to the rotating adjusting member (320).

2. The cabinet door return structure according to claim 1, characterized in that: The one-way rotation structure comprises a first tooth (311) located on the fixed adjustment member (310) or the rotating adjustment member (320) and a moving member (321) located on the rotating adjustment member (320) or the fixed adjustment member (310), wherein the moving member (321) has a limiting portion (322); When the movable member (321) is located at the first position, the limiting portion (322) cooperates with the first tooth (311) to prevent the rotating adjustment member (320) from rotating in the first direction relative to the fixed adjustment member (310); When the movable member (321) is located at the second position, the rotating adjustment member (320) can rotate in a second direction relative to the fixed adjustment member (310).

3. The cabinet door return structure according to claim 2, characterized in that: An elastic member (323) is provided on the moving member (321) to enable the moving member (321) to move toward the first position.

4. The cabinet door return structure according to claim 3, characterized in that: The rotation adjustment member (320) has an assembly groove (324), a groove wall of the assembly groove (324) has an installation groove (325), the moving member (321) is located in the installation groove (325), and the first position depth of the installation groove (325) is smaller than the second position depth of the installation groove (325).

5. The cabinet door return structure according to claim 4, characterized in that: The depth of the installation groove (325) gradually decreases from the middle to both ends. A detachable limit seat (326) is provided in the installation groove (325). One end of the elastic member (323) abuts against the movable member (321), and the other end abuts against the limit seat (326).

6. The cabinet door return structure according to claim 4, characterized in that: The fixed adjustment member (310) is provided with a limiting member (312), and the limiting member (312) cooperates with a groove wall of the assembly groove (324) to prevent the fixed adjustment member (310) from being separated from the rotating adjustment member (320); The rotation adjustment member (320) includes an operating portion (327) and a connecting portion (328), the assembly groove (324) is located on the operating portion (327), the connecting portion (328) is cylindrical and rotatably engaged with the second fixing assembly (400), the circumscribed circle diameter of the operating portion (327) is larger than the outer diameter of the connecting portion (328), the connecting portion (328) has a multi-faceted hole (329), and the regressive driving member (200) is a steel wire, which is inserted into the multi-faceted hole (329) and circumferentially fixed to the rotation adjustment member (320).

7. The cabinet door return structure according to claim 2, characterized in that: The fixed adjustment member (310) comprises a connecting seat (314) and a tooth head (315), the first tooth (311) is located on the tooth head (315), and one end of the connecting seat (314) away from the tooth head (315) is in a polygonal column shape; The connecting seat (314) and the tooth head (315) are integrally connected; Alternatively, the tooth head (315) and the connecting seat (314) are connected separately, the connecting seat (314) is provided with a mounting hole (316), an elastic clamping piece (317) is provided in the mounting hole (316), the tooth head (315) has a connecting hole (318), a limiting groove (319) is provided on the inner wall of the connecting hole (318), and the elastic clamping piece (317) is clamped in the limiting groove (319).

8. The cabinet door return structure according to claim 1, characterized in that: The one-way rotation structure includes a one-way bearing (500), a mounting post is provided on the fixed adjustment member (310), an inner sleeve of the one-way bearing (500) is circumferentially positioned on the mounting post, and an outer sleeve of the one-way bearing (500) is circumferentially positioned on the rotation adjustment member (320), a blocking member (510) is fixed on the mounting post, and the blocking member (510) has a blocking portion to prevent the one-way bearing (500) from detaching from the mounting post.

9. A storage cabinet, characterized in that: The invention comprises the regression structure according to any one of claims 1 to 8, and further comprises a box body and a cabinet door (100), wherein the first fixing component (300) is fixed on the box body, and the second fixing component (400) is fixed on the cabinet door (100).

10. A storage cabinet according to claim 9, wherein the second fixing assembly (400) comprises a limit block (410), an upper seat bushing (420) and a sleeve (430), the return drive member (200) is a steel wire, the lower end of the steel wire is circumferentially fixed to the rotation adjustment member (320), the upper end of the rotation adjustment member (320) is rotatably plugged into the upper seat bushing (420), the limit block (410) and the upper seat bushing (420) are circumferentially fixed by the cooperation of the multi-prism groove and the multi-prism column, the upper seat bushing (420) is fixed to the sleeve (430), the sleeve (430) is fixed to the upper end of the steel wire, and the upper seat bushing (420) is fixed to the cabinet door (100); A lower hinge seat is fixed on the box body, the fixed adjustment member (310) is fixed on the lower hinge seat, and the rotating adjustment member (320) is exposed outside the box body and the cabinet door (100); The upper seat bushing (420) has an abutment portion (421), the polygonal column is located below the abutment portion (421), and the abutment portion (421) abuts against the upper surface of the limit block (410); or, the upper seat bushing (420) has an abutment portion (421), the polygonal column is located above the abutment portion (421), and the abutment portion (421) abuts against the lower surface of the limit block (410).

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