Automatic return door body structure of a vertical display cabinet

Abstract

The utility model discloses an automatic return door body structure of vertical display cabinet relates to the technical field of cabinet door, including vertical display cabinet body, the vertical display cabinet body's front surface is installed with support plate, and the right side of support plate is installed with the cabinet door through the hinge component, the front surface of support plate is installed with the support frame, the fixed column is sequentially provided with fixed ring, torsional spring and movable ring from top to bottom, the front surface welding of movable ring has the connecting rod, the front surface of cabinet door is installed with fixed block, the right side mounting of movable link has the limit ring, movable link and connecting rod are connected through the spacing frame between. The automatic return door body structure of vertical display cabinet, when the cabinet door opens, movable ring drives connecting rod to rotate and compresses torsional spring to store potential energy, and after the hand is loose, torsional spring releases potential energy and drives movable ring to reset, and through the spacing frame linkage movable link, realizes the automatic closing of cabinet door, avoids the energy consumption increase and the security risk caused by not closing tightly.

Description

Technical Field

[0001] This utility model relates to the field of cabinet door technology, specifically to an automatic return door structure for a vertical display cabinet. Background Technology

[0002] In commercial display, retail, and warehousing sectors, freestanding display cases serve as crucial displays of goods, and the ease of use and safety of their doors are of paramount concern. Traditional display case doors often employ manual opening and closing designs, which can easily result in incomplete closure after use. This leads to cold air leakage, increased energy consumption, and compromised product freshness. Furthermore, in high-traffic environments like supermarkets and shopping malls, doors that are not closed promptly not only affect the aesthetics of the display but can also pose safety hazards. Therefore, developing a door structure with an automatic return function is of great significance for improving the user experience of display cases, reducing energy consumption, and ensuring safety.

[0003] For example, Chinese utility model patent application number 202120645677.6 discloses a vertical display cabinet with a wind deflector assembly, which provides a vertical display cabinet with a wind deflector assembly that has a small fan size, occupies little space, is easy to transport and install, has low fan noise, and has a good air guiding effect. However, its device still has certain defects;

[0004] When the cabinet door is opened, it needs to be closed manually. In high-frequency usage scenarios, such as supermarkets and convenience stores, staff or customers often forget to close the cabinet door due to negligence, which affects the appearance and poses certain safety hazards.

[0005] Therefore, we propose an automatic return door structure for a vertical display cabinet to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic return door structure for a vertical display cabinet, in order to solve the problem mentioned in the background art that currently on the market, when opening the cabinet door, it is necessary to manually close the cabinet door. In high-frequency usage scenarios, such as supermarkets and convenience stores, staff or customers often forget to close the cabinet door due to negligence, which affects the aesthetics and poses certain safety hazards.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic return door structure for a vertical display cabinet, comprising a vertical display cabinet body, a support plate installed on the front surface of the vertical display cabinet body, and a cabinet door installed on the right side of the support plate via a hinge assembly, a support frame installed on the front surface of the support plate, and a fixed column installed inside the support frame, wherein the fixed column is provided with a fixed ring, a torsion spring and a movable ring from top to bottom, and a connecting rod welded to the front surface of the movable ring;

[0008] A fixing block is installed on the front surface of the cabinet door, and a limit sleeve is installed on the front surface of the fixing block. A movable rod is sleeved inside the limit sleeve. A limit ring is installed on the right side of the movable rod. The movable rod and the connecting rod are connected by a limit frame.

[0009] Preferably, the front surface of the cabinet door is provided with a viewing glass panel, and the interior of the vertical display cabinet body is provided with display racks.

[0010] With the above structural design, the visible glass panel of the cabinet door and the display rack design can achieve automatic return function without affecting the product display effect, thus balancing practicality and aesthetics.

[0011] Preferably, the fixed ring is fixedly connected to the fixed post, the fixed ring is fixedly connected to the torsion spring, the torsion spring is sleeved on the fixed post, the lower end of the torsion spring is fixedly connected to the movable ring, and the movable ring is rotatably connected to the fixed post.

[0012] With the above structural design, the fixed ring and the movable ring fix the two ends of the torsion spring respectively. By rotating the movable ring around the fixed column, the torsion spring potential energy is compressed and released, ensuring that the automatic return power is stable and reliable.

[0013] Preferably, a protective shell is installed on the front surface of the support frame, the protective shell is detachably connected to the support frame, and a slot is opened on the front surface of the protective shell, the slot being located on the outside of the movable ring.

[0014] With the above structural design, the protective shell can be detachably covered to cover the support frame, and the movable ring is exposed through the slot, which protects the internal components from dust and external force damage and extends their service life.

[0015] Preferably, the connecting rod has a first through hole, and the movable rod has a second through hole and a third through hole installed from left to right, and the first through hole, the second through hole and the third through hole are the same size.

[0016] With the above structural design, the connecting rod and the movable rod are connected by a limiting frame. During installation, the limiting frame can pass through the first through hole, the second through hole and the third through hole as needed.

[0017] Preferably, the limiting frame has an n-shaped structure design, and the lower left and right sides of the limiting frame have a threaded structure design. The left and right sides of the limiting frame pass through the first through hole and the second through hole, and the lower left and right sides of the limiting frame are equipped with limiting nuts.

[0018] The above structural design, with the threaded structure of the limit frame and the limit nut, ensures a stable connection between the connecting rod and the movable rod, and supports quick disassembly and assembly to switch between automatic return or free opening modes.

[0019] Preferably, the diameter of the limiting ring is larger than the diameter of the limiting sleeve, and the diameter of the limiting sleeve is larger than the diameter of the movable rod.

[0020] The above structural design prevents the movable rod from coming out of the limiting sleeve, ensuring the stability and reliability of the linkage structure.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the automatic return door structure of this vertical display cabinet:

[0022] 1. Automatic return: When the cabinet door is opened, the movable ring drives the connecting rod to rotate and compress the torsion spring to store potential energy. After releasing the handle, the torsion spring releases the potential energy and drives the movable ring to return to its original position. Through the linkage of the limit frame and the movable rod, the cabinet door is automatically closed, avoiding increased energy consumption and safety hazards caused by not closing it properly.

[0023] 2. Flexible adjustment: The limiting bracket can pass through the first through hole of the connecting rod and the second or third through hole of the movable rod, and be fixed by the limiting nut. The connection position can be adjusted to change whether the connecting rod and the movable rod are connected to adapt to different usage needs. After disassembly, it can be switched to the free opening mode for easy placement of items. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the cabinet door of this utility model when automatic return is not required;

[0026] Figure 3 This is a schematic diagram showing the position and structure of the connecting rod and the movable rod of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the connecting rod and movable rod of this utility model during disassembly;

[0028] Figure 5 This is a schematic diagram of the internal structure of the support frame of this utility model.

[0029] In the diagram: 1. Vertical display cabinet body; 2. Support plate; 3. Hinge assembly; 4. Cabinet door; 5. Support frame; 6. Fixed column; 7. Fixed ring; 8. Torsion spring; 9. Movable ring; 10. Protective shell; 11. Slot; 12. Connecting rod; 13. First through hole; 14. Fixed block; 15. Limiting sleeve; 16. Movable rod; 17. Second through hole; 18. Third through hole; 19. Limiting ring; 20. Limiting frame; 21. Limiting nut. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-5 This utility model provides a technical solution: an automatic return door structure for a vertical display cabinet, including a vertical display cabinet body 1, a support plate 2, a hinge assembly 3, a cabinet door 4, a support frame 5, a fixing column 6, a fixing ring 7, a torsion spring 8, a movable ring 9, a protective shell 10, a slot 11, a connecting rod 12, a first through hole 13, a fixing block 14, a limiting sleeve 15, a movable rod 16, a second through hole 17, a third through hole 18, a limiting ring 19, a limiting frame 20, and a limiting nut 21. The support plate 2 is installed on the front surface of the vertical display cabinet body 1, and the cabinet door 4 is installed on the right side of the support plate 2 via the hinge assembly 3. The front surface of door 4 is equipped with a viewing glass panel. The interior of the vertical display cabinet body 1 contains display shelves for displaying relevant items. The viewing glass panel on door 4 allows for easy viewing of the items inside the vertical display cabinet body 1. A support frame 5 is installed on the front surface of support plate 2, and a fixed post 6 is installed inside the support frame 5. From top to bottom, the fixed post 6 is equipped with a fixed ring 7, a torsion spring 8, and a movable ring 9. The fixed ring 7 is fixedly connected to the fixed post 6, and the fixed ring 7 is fixedly connected to the torsion spring 8. The torsion spring 8 is sleeved on the fixed post 6, and its lower end is fixedly connected to the movable ring 9. The cabinet is rotatably connected to the fixed column 6. When the cabinet door 4 needs to be opened, the cabinet door 4 is pulled outward. The cabinet door 4 rotates through the hinge assembly 3, causing the movable rod 16 to move to the right. The movable rod 16 pulls the connecting rod 12 through the limit frame 20, causing the movable ring 9 to rotate on the fixed column 6. The compression torsion spring 8 stores elastic potential energy. After the cabinet door 4 is opened, if the cabinet door 4 is released, the torsion spring 8 releases its potential energy, driving the movable ring 9 to rotate and reset. Through the connecting rod 12 and the limit frame 20, the movable rod 16 moves to the left and resets, causing the cabinet door 4 to close automatically. A protective shell 10 is installed on the front surface of the support frame 5. The protective shell 10 is detachably connected to the support frame 5. The protective shell 10 has a slot 11 on its front surface, which is located on the outside of the movable ring 9. The protective shell 10 protects the internal torsion spring 8 structure and prevents damage to the internal components of the support frame 5. A connecting rod 12 is welded to the front surface of the movable ring 9. A first through hole 13 is provided on the connecting rod 12. A second through hole 17 and a third through hole 18 are installed on the movable rod 16 from left to right. The first through hole 13, the second through hole 17 and the third through hole 18 are the same size. The connecting rod 12 and the movable rod 16 are connected by a limiting frame 20. The limiting frame 20 can pass through the first through hole 13, the second through hole 17 and the third through hole 18.

[0032] A fixing block 14 is installed on the front surface of cabinet door 4, and a limiting sleeve 15 is installed on the front surface of the fixing block 14. A movable rod 16 is sleeved inside the limiting sleeve 15. A limiting ring 19 is installed on the right side of the movable rod 16. The diameter of the limiting ring 19 is larger than the diameter of the limiting sleeve 15, and the diameter of the limiting sleeve 15 is larger than the diameter of the movable rod 16. The limiting ring 19 prevents the movable rod 16 from coming out of the limiting sleeve 15. The movable rod 16 and the connecting rod 12 are connected by a limiting frame 20. The limiting frame 20 has an n-shaped structure design, and both the lower left and right sides of the limiting frame 20 have a threaded structure design. The left and right sides of the limiting frame 20 pass through the first through hole 13 and... The second through hole 17 and the lower left and right sides of the limiting frame 20 are both equipped with limiting nuts 21. When the connecting rod 12 and the movable rod 16 are connected, the limiting frame 20 is passed through the first through hole 13 and the second through hole 17 on the connecting rod 12 and the movable rod 16, and then the limiting nuts 21 are rotated to complete the installation of the limiting frame 20. When the cabinet door 4 does not need to automatically return to its original position, the limiting frame 20 is removed and passed through the second through hole 17 and the third through hole 18 on the movable rod 16. Then the limiting nuts 21 are rotated to install the limiting frame 20 on the movable rod 16, so that the door can be opened freely, which is convenient for placing items inside the vertical display cabinet body 1.

[0033] Working principle: When using the automatic return door structure of this vertical display cabinet, firstly, when it is necessary to open the cabinet door 4, pull the cabinet door 4 outward. The cabinet door 4 rotates through the hinge assembly 3, driving the movable rod 16 to move to the right. The movable rod 16 pulls the connecting rod 12 through the limit frame 20, causing the movable ring 9 to rotate on the fixed column 6, compressing the torsion spring 8 to store elastic potential energy. After the cabinet door 4 is opened, if the cabinet door 4 is released, the torsion spring 8 releases its potential energy, driving the movable ring 9 to rotate and reset. Through the connecting rod 12 and the limit frame 20, it drives the movable rod 16 to move to the left and reset, causing the cabinet door 4 to close automatically.

[0034] When connecting rod 12 and movable rod 16 are connected, the limiting frame 20 is passed through the first through hole 13 and the second through hole 17 on connecting rod 12 and movable rod 16, and then the limiting nut 21 is rotated to complete the installation of the limiting frame 20. When the cabinet door 4 does not need to automatically return to its original position, the limiting frame 20 is removed and passed through the second through hole 17 and the third through hole 18 on movable rod 16, and then the limiting nut 21 is rotated to install the limiting frame 20 on movable rod 16, enabling free opening of the door and facilitating the placement of items inside the vertical display cabinet body 1, thereby completing a series of operations. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic return door structure for a vertical display cabinet, comprising a vertical display cabinet body (1), wherein a support plate (2) is mounted on the front surface of the vertical display cabinet body (1), and a cabinet door (4) is mounted on the right side of the support plate (2) via a hinge assembly (3), characterized in that: The support plate (2) has a support frame (5) installed on its front surface, and a fixed column (6) is installed inside the support frame (5). The fixed column (6) is provided with a fixed ring (7), a torsion spring (8) and a movable ring (9) from top to bottom. A connecting rod (12) is welded to the front surface of the movable ring (9). A fixing block (14) is installed on the front surface of the cabinet door (4), and a limiting sleeve (15) is installed on the front surface of the fixing block (14). A movable rod (16) is sleeved inside the limiting sleeve (15). A limiting ring (19) is installed on the right side of the movable rod (16). The movable rod (16) and the connecting rod (12) are connected by a limiting frame (20).

2. The automatic return door structure of the vertical display cabinet according to claim 1, characterized in that: The front surface of the cabinet door (4) is provided with a visible glass panel, and the interior of the vertical display cabinet body (1) is provided with a display rack.

3. The automatic return door structure of the vertical display cabinet according to claim 1, characterized in that: The fixed ring (7) is fixedly connected to the fixed post (6), and the fixed ring (7) is fixedly connected to the torsion spring (8). The torsion spring (8) is sleeved on the fixed post (6), and the lower end of the torsion spring (8) is fixedly connected to the movable ring (9). The movable ring (9) is rotatably connected to the fixed post (6).

4. The automatic return door structure of the vertical display cabinet according to claim 3, characterized in that: The front surface of the support frame (5) is fitted with a protective shell (10), which is detachably connected to the support frame (5). The front surface of the protective shell (10) is provided with a slot (11), which is located on the outside of the movable ring (9).

5. The automatic return door structure of the vertical display cabinet according to claim 1, characterized in that: The connecting rod (12) has a first through hole (13), and the movable rod (16) has a second through hole (17) and a third through hole (18) installed from left to right. The first through hole (13), the second through hole (17) and the third through hole (18) are the same size.

6. The automatic return door structure of the vertical display cabinet according to claim 5, characterized in that: The limiting frame (20) has an n-shaped structure design, and the lower left and right sides of the limiting frame (20) are threaded. The left and right sides of the limiting frame (20) pass through the first through hole (13) and the second through hole (17). Limiting nuts (21) are installed on the lower left and right sides of the limiting frame (20).

7. The automatic return door structure of the vertical display cabinet according to claim 1, characterized in that: The diameter of the limiting ring (19) is greater than the diameter of the limiting sleeve (15), and the diameter of the limiting sleeve (15) is greater than the diameter of the movable rod (16).

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