Cabinet door return structure and article placing cabinet

Abstract

The utility model relates to the technical field of goods shelf cabinet doors, in particular to a cabinet door return structure and an article placing cabinet, which comprises a return door limiting piece and an elastic return door component, the return door limiting piece limits the rotating direction of a first rotating connecting part of the elastic return door component, and a second rotating connecting part of the elastic return door component is arranged on a return door connecting shaft. The door return limiting piece is located in a profile inner cavity of the cabinet door frame, and the sectional area of the door return limiting piece is smaller than that of the profile inner cavity. The door return limiting piece and the elastic door return assembly are arranged on the cabinet door of the commodity cabinet, the sectional area of the door return limiting piece is controlled within the sectional area range of the inner cavity of the sectional material, the size of the sectional material does not need to be enlarged during installation, and the size of a frame does not need to be widened to adapt to the installation space of the door return limiting piece. And on the basis, the four splicing frame strips of the cabinet door frame can realize the same width, so that the cabinet door frame is more tidy and attractive in overall viewing aspect, and is convenient for a user to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shelf cabinet door technical field, specifically is a cabinet door back door structure and article placing cabinet. BACKGROUND

[0002] In all kinds of large and small markets, supermarkets or convenience stores in life, commodity display cabinet or commodity selling cabinet is usually used to store, display and sell various commodities, these commodity cabinets can usually place normal temperature goods or refrigerated goods, part of refrigerated goods because of the need of heat preservation, the commodity cabinet will be equipped with the cabinet door for sealing the space in the cabinet, the cabinet door can avoid the cabinet cold air leakage after closing, can also reduce the cabinet goods dust.

[0003] The cabinet door of the existing commodity cabinet also has a flexible back door structure, but the back door structure of these cabinet doors is usually connected with the door shaft after bending round steel, which occupies a larger space inside the frame section after installation, resulting in a wider door frame of the cabinet door, affecting the display area of the transparent part in the middle of the cabinet door, and being inconvenient for the display and appreciation of commodities.

[0004] In view of the above shortcomings, we need to develop a cabinet door back door structure and article placing cabinet to meet the needs of the majority of users. INVENTION CONTENTS

[0005] In view of the above-mentioned problems of the existing commodity cabinet back door structure, such as large space occupation, wide door frame and affecting the display area, the technical scheme adopted by the utility model to solve its technical problems is:

[0006] A cabinet door back door structure, comprising a back door limiting piece and an elastic back door assembly, the back door limiting piece limits the rotation direction of the first rotating connecting part of the elastic back door assembly, the second rotating connecting part of the elastic back door assembly is installed on the back door connecting shaft, the back door limiting piece is located in the section cavity of the frame of the cabinet door, and the cross-sectional area perpendicular to the length direction of the back door limiting piece is smaller than that of the section cavity.

[0007] The cabinet door back door structure described above, the elastic back door assembly comprises a torsion spring piece for back door elastic reset, the first rotating connecting part is located at one end of the torsion spring piece close to the back door limiting piece, and the second rotating connecting part is located at one end of the torsion spring piece close to the back door connecting shaft.

[0008] A cabinet door return door structure as described above, the inside of the return door limiting piece has a limiting cavity for the torsion spring piece to extend into, the limiting cavity limits the rotation direction of the first rotation connecting part, the inside of the return door connecting shaft has a positioning cavity for the torsion spring piece to extend into, the positioning cavity limits the rotation direction of the second rotation connecting part, the minimum gap between the torsion spring piece and the limiting cavity is less than the outer diameter i of the cross section of the torsion spring piece.

[0009] A cabinet door return door structure as described above, the first rotation connecting part includes a first segment a extending from the torsion spring piece, a second segment b extending from the first segment a, a third segment c extending from the second segment b, and a fourth segment d extending from the third segment c.

[0010] A cabinet door return door structure as described above, the first rotation connecting part and the second rotation connecting part have a straight handle segment e, the central axis of the first segment a is inclined relative to the central axis of the straight handle segment e, the central axis of the second segment b is parallel and same direction to the central axis of the straight handle segment e, the third segment c is perpendicular to the central axis of the straight handle segment e, and the central axis of the fourth segment d is parallel and same direction to the central axis of the straight handle segment e.

[0011] A cabinet door return door structure as described above, the central axis of the first segment a forms an acute inclined included angle f with the central axis of the straight handle segment e, the angle of the inclined included angle f is between 5-85 degrees, the third segment c extends from the second segment b towards the direction close to the central axis of the straight handle segment e, and the fourth segment d extends from the third segment c towards the direction close to the straight handle segment e.

[0012] A cabinet door return door structure as described above, the central axis of the first segment a, the central axis of the second segment b, the central axis of the third segment c, and the central axis of the fourth segment d are all in the same horizontal plane.

[0013] A cabinet door return door structure as described above, the cross-sectional outer profile of the return door limiting piece perpendicular to the length direction has a maximum length g and a maximum width h, the cross-sectional inner profile of the profile inner cavity perpendicular to the length direction has a maximum length j and a maximum width k, the maximum length g is less than the maximum length j, and the maximum width h is less than the maximum width k.

[0014] A cabinet door return door structure as described above, the outer surface of the first rotation connecting part is composed of a curved surface, and the outer surface of the second rotation connecting part is composed of a plane.

[0015] An article placing cabinet, including a cabinet body and a cabinet door, the cabinet door is installed with the cabinet door return door structure.

[0016] The utility model discloses the beneficial effect is as follows:

[0017] 1, the utility model discloses a cabinet door on commodity cabinet adopts the door return limiting piece and elastic door return subassembly, the cross-sectional area of door return limiting piece is controlled in the cross-sectional area range of section bar inner chamber, need not to expand section bar volume when installing, need not to widen the mounting space of frame size suitable door return limiting piece, avoid the size widening of cabinet door frame to influence the ornamental area of transparent display area, on this basis, four splicing frame strips of cabinet door frame can realize same width and narrow, more neat and beautiful in overall ornamental aspect, convenient for the user to use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a cabinet door door return structure's perspective drawing for the utility model.

[0019] Figure 2 It is a cabinet door door return structure's frame exploded view for the utility model.

[0020] Figure 3 It is a cabinet door door return structure's internal structure exploded view for the utility model.

[0021] Figure 4 It is a cabinet door door return structure's front view for the utility model.

[0022] Figure 5 It is Figure 4 A-A cut view.

[0023] Figure 6 It is the enlarged view of torsion spring piece for the utility model.

[0024] Figure 7 It is the enlarged view of door return limiting piece for the utility model.

[0025] Figure 8 It is the enlarged view of door return connecting shaft for the utility model. DETAILED DESCRIPTION

[0026] The embodiment of the utility model is explained in detail below in connection with the drawings.

[0027] Example 1:

[0028] As Figures 1 to 8The door return structure of a cabinet door shown in the application comprises a door return limiting piece 1 and an elastic door return assembly 200, wherein the door return limiting piece 1 is a rotating limiting part installed inside the cabinet door of a commodity cabinet for limiting the elastic door return assembly 200 to achieve elastic door return reset, the elastic door return assembly 200 is an elastic reset assembly installed inside the cabinet door of a commodity cabinet for achieving elastic door return reset, the elastic door return assembly 200 comprises a torsion spring piece 2 for elastic deformation reset and a door return connecting shaft 3 installed at the rotating shaft position of the cabinet door, the torsion spring piece 2 is limitingly connected to the door return connecting shaft 3 and extends into the door return limiting piece 1, thereby completing the installation of the cabinet door return structure.

[0029] Specifically, in the embodiment, the torsion spring piece 2 is divided into a first rotating connecting part 21 and a second rotating connecting part 22, wherein the first rotating connecting part 21 is a connecting end of the torsion spring piece 2 for extending into the door return limiting piece 1, the first rotating connecting part 21 is located at one end of the torsion spring piece 2 close to the door return limiting piece 1, and the second rotating connecting part 22 is a connecting end of the torsion spring piece 2 for being installed at the door return connecting shaft 3, the second rotating connecting part 22 is located at one end of the torsion spring piece 2 close to the door return connecting shaft 3.

[0030] Specifically, in the embodiment, the cabinet door of the commodity cabinet is composed of several different cabinet door frames 4, when assembled, a transparent display panel 6 (glass or acrylic transparent material can be used) is installed in the middle, preferably four cabinet door frames 4 are used to enclose the display panel 6 to assemble the cabinet door, wherein the cabinet door frame 4 can be made of aluminum profile or plastic profile, these profiles all have a hollow profile cavity 51, and the door return limiting piece 1 is installed in the profile cavity 51 of the cabinet door frame 4 to facilitate rotation or swinging with the cabinet door, and the door return connecting shaft 3 is limitingly installed in the cabinet body as a rotating hinged part of the cabinet door and will not rotate or swing with the cabinet door.

[0031] Specifically, in the embodiment, the cross-sectional area of the door return limiting piece 1 perpendicular to the length direction is smaller than the cross-sectional area of the profile cavity 51 perpendicular to the length direction, so that when the door return limiting piece 1 is installed, the space of the profile cavity 51 does not need to be enlarged to meet the installation requirements, the width of the frame does not need to be widened to accommodate the installation space of the door return limiting piece 1, the profile cavity 51 can be installed and assembled according to the standard profile specifications, avoiding the increase in the size of the cabinet door frame 4 affecting the transparent viewing area of the display panel 6, on this basis, the four assembled frame strips of the cabinet door frame 4 can have the same width, which is more neat and beautiful in overall viewing and is convenient for users to use.

[0032] When in use, after the cabinet door is opened (i.e. the user uses the hand force to pull the cabinet door), the door return limiting piece 1 limits the rotation direction of the first rotation connecting part 21, the door return limiting piece 1 in the cabinet door drives the first rotation connecting part 21 of the torsion spring piece 2 to rotate or swing, but the door return connecting shaft 3 does not rotate or swing with the opening of the cabinet door, the door return connecting shaft 3 limits the rotation direction of the second rotation connecting part 22, so that the torsion elastic deformation occurs in the middle of the torsion spring piece 2 during the opening of the door, and after the cabinet door loses the external force (i.e. the user no longer uses the hand force to pull the cabinet door), the cabinet door rotates towards the direction of the reset of the torsion spring piece 2 due to the influence of the torsion elastic deformation of the torsion spring piece 2, and finally when the torsion spring piece 2 resets to the state before opening, the elastic reset force drives the cabinet door to close towards the cabinet body, realizing the automatic door return effect of the cabinet door.

[0033] As another embodiment 101 of the embodiment 1, the door return limiting piece 1 has a limiting cavity 11 inside for the torsion spring piece 2 to extend into, the limiting cavity 11 limits the rotation direction of the first rotation connecting part 21, in this embodiment, the first rotation connecting part 21 of the torsion spring piece 2 adopts a bending process to have a bending structure for limiting its own rotation, the cross-sectional profile of the limiting cavity 11 is a round head long slot shape to adapt to the bending shape of the first rotation connecting part 21; the door return connecting shaft 3 has a positioning cavity 31 inside for the torsion spring piece 2 to extend into, the positioning cavity 31 limits the rotation direction of the second rotation connecting part 22, in this embodiment, the second rotation connecting part 22 of the torsion spring piece 2 adopts a rectangular structure, extending into the positioning cavity 31 can limit the rotation of the second rotation connecting part 22 through the edge shape of the rectangular structure, so that the torsion elastic deformation of the torsion spring piece 2 can be realized when the cabinet door is opened, on this basis, the minimum gap between the torsion spring piece 2 and the limiting cavity 11 is smaller than the cross-sectional outer diameter i of the torsion spring piece 2, limiting the size of the installation gap, which can improve the stability of the torsion elastic deformation, avoid the noise caused by the shaking of the torsion spring piece 2 in the limiting cavity 11, and also reduce the volume of the door return limiting piece 1.

[0034] As another embodiment 102 of the embodiment 101, the outer surface of the first rotation connecting part 21 is composed of a curved surface, and the outer surface of the second rotation connecting part 22 is composed of a plane, which facilitates the first rotation connecting part 21 and the second rotation connecting part 22 to implement different limiting effects.

[0035] As another embodiment 102 of embodiment 1, the cross-sectional outer profile of the door return limiting piece 1 perpendicular to the length direction has a maximum length g and a maximum width h, the cross-sectional inner profile of the profile inner cavity 51 perpendicular to the length direction has a maximum length j and a maximum width k, the maximum length g is smaller than the maximum length j, and the maximum width h is smaller than the maximum width k. The cross-sectional area of the door return limiting piece 1 is controlled within the cross-sectional area range of the profile inner cavity 51, so that the profile volume does not need to be enlarged during installation, and the installation space of the door return limiting piece 1 is adapted to the size of the cabinet door frame 4, avoiding the increase in the size of the cabinet door frame 4 affecting the viewing area of the transparent display area.

[0036] Embodiment 2:

[0037] As shown in Figure 3 and Figure 6 , a cabinet door return structure, the first rotating connecting part 21 and the second rotating connecting part 22 have a straight handle section e, the first rotating connecting part 21 of the torsion spring piece 2 includes a first section a extending from the straight handle section e, a second section b extending from the first section a, a third section c extending from the second section b, and a fourth section d extending from the third section c, wherein the central axis of the first section a is inclined relative to the central axis of the straight handle section e, the central axis of the second section b is parallel and same direction to the central axis of the straight handle section e, the third section c is perpendicular to the central axis of the straight handle section e, and the central axis of the fourth section d is parallel and same direction to the central axis of the straight handle section e, so that the first rotating connecting part 21 forms a curved structure for limiting its own rotation, and can be stably driven by the door return limiting piece 1 to implement torsional elastic deformation, thereby improving the stability of the torsional elastic deformation of the torsion spring piece 2.

[0038] As another embodiment 201 of embodiment 2, the central axis of the first section a forms an acute inclined angle f with the central axis of the straight handle section e, the angle of the inclined angle f is between 5-85 degrees, and the inclined angle f preferably adopts 45 degrees or 60 degrees, the third section c extends from the second section b towards the direction close to the central axis of the straight handle section e, and the fourth section d extends from the third section c towards the direction close to the straight handle section e, so that the first rotating connecting part 21 forms an inverted hook structure for limiting its own rotation, further reduces the space occupied by the outer shape of the torsion spring piece 2, and reduces the installation space of the door return limiting piece 1 in the profile inner cavity 51.

[0039] As another embodiment 202 of the embodiment 2, the central axis of the first segment a, the central axis of the second segment b, the central axis of the third segment c, and the central axis of the fourth segment d are all in the same horizontal plane, so that the outer shape distortion thickness of the first rotary connection 21 is reduced to the same as the cross-sectional outer diameter i of the torsion spring member 2, which can be stably driven by the door returning limiting member 1 to implement the torsion elastic deformation, improve the stability of the torsion elastic deformation of the torsion spring member 2, further reduce the outer shape occupied space of the torsion spring member 2, and reduce the installation space of the door returning limiting member 1 in the profile inner cavity 51.

[0040] Embodiment 4:

[0041] On the basis of any of the above embodiments, an article placing cabinet (not shown) includes a cabinet body and a cabinet door, and the cabinet door is provided with the door returning structure, and the cabinet door is installed on the cabinet body through the door returning connecting shaft 3.

[0042] The above only takes the embodiment to further illustrate the technical content of the present application, so as to make the reader easier to understand, but does not represent that the embodiments of the present application are limited to this, any technical extension or re-creation made according to the present application is protected by the present application. The protection scope of the present application is subject to the claims.

Claims

1. A cabinet door return structure, characterized by: The door return limiting piece (1) limits the rotation direction of the first rotation connecting part (21) of the elastic door return assembly (200), the second rotation connecting part (22) of the elastic door return assembly (200) is installed on the door return connecting shaft (3), the door return limiting piece (1) is located in the profile inner cavity (51) of the cabinet door frame (4), and the cross-sectional area perpendicular to the length direction of the door return limiting piece (1) is smaller than that of the profile inner cavity (51).

2. The cabinet door return door structure of claim 1, wherein: The elastic door return assembly (200) includes a torsion spring piece (2) for elastic reset of the door return, the first rotation connecting part (21) is located at one end of the torsion spring piece (2) close to the door return limiting piece (1), and the second rotation connecting part (22) is located at one end of the torsion spring piece (2) close to the door return connecting shaft (3).

3. The cabinet door return door structure of claim 2, wherein: The door return limiting piece (1) has a limiting cavity (11) inside for the torsion spring piece (2) to extend into, the limiting cavity (11) limits the rotation direction of the first rotation connecting part (21), the door return connecting shaft (3) has a positioning cavity (31) inside for the torsion spring piece (2) to extend into, the positioning cavity (31) limits the rotation direction of the second rotation connecting part (22), and the minimum gap between the torsion spring piece (2) and the limiting cavity (11) is smaller than the cross-sectional outer diameter i of the torsion spring piece (2).

4. The cabinet door return door structure of claim 2, wherein: The first rotation connecting part (21) includes a first segment a extending from the torsion spring piece (2), a second segment b extending from the first segment a, a third segment c extending from the second segment b, and a fourth segment d extending from the third segment c.

5. The cabinet door return door structure of claim 4, wherein: The first rotation connecting part (21) and the second rotation connecting part (22) have a straight handle segment e therebetween, the central axis of the first segment a is inclined relative to the central axis of the straight handle segment e, the central axis of the second segment b is parallel and same direction to the central axis of the straight handle segment e, the third segment c is perpendicular to the central axis of the straight handle segment e, and the central axis of the fourth segment d is parallel and same direction to the central axis of the straight handle segment e.

6. The cabinet door return door structure of claim 5, wherein: The central axis of the first segment a and the central axis of the straight handle segment e form an acute inclined included angle f, the angle of the inclined included angle f is between five and eighty-five degrees, the third segment c extends from the second segment b towards the direction close to the central axis of the straight handle segment e, and the fourth segment d extends from the third segment c towards the direction close to the straight handle segment e.

7. The cabinet door return door structure of claim 4, wherein: The central axes of the first segment a, the second segment b, the third segment c, and the fourth segment d are all in the same horizontal plane.

8. The cabinet door return door structure of claim 1, wherein: The cross-sectional outer contour of the door return limiting piece (1) perpendicular to the length direction has a maximum length g and a maximum width h, the cross-sectional inner contour of the profile inner cavity (51) perpendicular to the length direction has a maximum length j and a maximum width k, the maximum length g is smaller than the maximum length j, and the maximum width h is smaller than the maximum width k.

9. A cabinet door return structure according to any one of claims 1-8, characterized in that: The outer surface of the first rotary connecting part (21) is composed of curved surfaces, and the outer surface of the second rotary connecting part (22) is composed of flat surfaces.

10. An article placement cabinet, characterized by: The cabinet door is provided with the cabinet door return door structure as claimed in any one of claims 1-9.

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