Upturning door structure of commodity shelf

By introducing a limiting component and a cam block into the flip-up door structure of the shelf, friction is used to restrict the movement of the sliding door, thus solving the safety hazards when children operate it, ensuring that the door does not slide out, and improving safety.

CN224134457UActive Publication Date: 2026-04-17河南炎恩家具制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing upward-opening door structure of the shelving unit poses a safety hazard when children operate it, as the door may easily slide out and hit a child's head or face.

Method used

It adopts a limit component and cam block structure. Through the cooperation of the cam block and the anti-slip block, the movement of the sliding door is restricted by friction to prevent the sliding door from sliding out of the mounting bracket.

Benefits of technology

It effectively prevents the sliding door from sliding out, avoiding injury to children and improving the safety of the lift-up door on the shelf.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224134457U_ABST
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Abstract

The utility model discloses an upturning door structure of a storage rack, which relates to the field of storage racks and comprises a top plate, angle steel columns which are symmetrical front and back are fixedly connected to two sides of the top plate, a plurality of storage plates are fixed between the symmetrical angle steel columns at equal intervals, a fixing plate is fixedly connected with the angle steel columns, and a connecting plate is fixedly connected to one side of the fixing plate. A fixing column is fixedly connected to the front end in the mounting frame, a sliding door is slidably connected into the mounting frame and located above the fixing column, a cam block is rotatably connected to the fixing column, and an anti-skid block is fixedly connected to the end, away from the fixing column, of the cam block. The sliding door has the beneficial effects that the cam block is released through the limiting assembly, the anti-sliding block is located behind the cam block, when a child pulls the sliding door, the sliding door and the cam block roll, the sliding door stops moving due to friction force after the anti-sliding block abuts against the sliding door, and the sliding door is prevented from directly sliding out of the mounting frame; serious consequences are caused by striking the head or face of a child downwards.
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Description

Technical Field

[0001] This utility model relates to the field of storage racks, and in particular to a storage rack with a flip-up door structure. Background Technology

[0002] A cabinet with a lift-up door is a common type of door that opens and closes upwards. It has advantages such as saving space and being easy to open and close. Children are often curious and lack the ability to judge danger, so a limit mechanism needs to be added to prevent accidents.

[0003] A search revealed a Chinese patent publication number, CN221346711U, which discloses a connection structure between a lift-up door and a cabinet. This patent uses a corner bracket that rotates around a guide rail axis. When the door is fully open, pushing the door can cause the corner bracket to disengage from the guide rail axis and slide along the extension direction of the guide rail until it abuts against the stop bar. This device has a certain problem: when a child pulls the door, the door will slide out of the guide rail and rotate downwards, hitting the child's head and face and causing injury, posing a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a shelf with a flip-up door structure in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A shelf with a flip-up door structure includes a top plate, on both sides of which are fixedly connected symmetrical angle steel columns, and multiple shelf panels are fixed at equal intervals between the symmetrical angle steel columns.

[0007] Each shelf is equipped with a lift-up assembly, which includes symmetrical fixed plates that are fixedly connected to angle steel columns. A connecting plate is fixedly connected to one side of the fixed plate. The connecting plate is Z-shaped, and a mounting bracket is fixedly installed at the lower end of the connecting plate. The mounting bracket is U-shaped with its opening away from the fixed plate.

[0008] A fixed column is fixedly connected to the front end of the mounting frame, and a sliding door is slidably connected inside the mounting frame. The sliding door is located above the fixed column, and a cam block is rotatably connected to the fixed column. A limiting component is provided between the cam block and the mounting frame, and an anti-slip block is fixedly connected to the end of the cam block away from the fixed column.

[0009] Preferably, the limiting component includes a rotating ring, which is rotatably connected to the side of the cam block near the fixed plate, and a groove is provided on the mounting bracket, which is located below the cam block.

[0010] Preferably, a limiting spring is fixedly connected between the swivel and the mounting bracket, and the limiting spring is sleeved on the outside of the fixed column.

[0011] Preferably, the top plate has symmetrical side plates on both sides, the side plates are fixedly connected to the angle steel columns, and the rear end of the angle steel columns is fixedly connected to a back plate, which is located between the symmetrical side plates.

[0012] Preferably, a support plate is fixedly connected to the rear end of the sliding door. The support plate is located below the sliding door and forms a slant shape with the sliding door. A wheel is rotatably connected to the lower end of the support plate.

[0013] Preferably, when the sliding door is located at the upper end of the mounting bracket, the wheel abuts against the mounting bracket; when the sliding door is located at the front end of the mounting bracket, the wheel abuts against the cam block.

[0014] Preferably, a handle is fixedly connected to the front end of the sliding door, and symmetrical rubber pads are fixedly connected to the front end of the shelf.

[0015] The beneficial effect is that by releasing the cam block through the limiting component, the anti-slip block is located behind the cam block. When a child pulls the sliding door, the sliding door and the cam block roll together, causing the anti-slip block to come into contact with the sliding door. Due to friction, the sliding door stops moving, preventing the sliding door from sliding directly out of the mounting bracket and hitting the child's head or face downwards, causing serious consequences.

[0016] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a perspective view of a shelf with a flip-up door as described in this utility model;

[0019] Figure 2 This is an internal schematic diagram of the upward-opening door structure of a shelf described in this utility model;

[0020] Figure 3 yes Figure 2 Enlarged view of point A;

[0021] Figure 4 This is a perspective view of a portion of the mechanism of the upward-opening door structure of a shelf described in this utility model;

[0022] Figure 5 This is a right view of the shelf lift-up door structure described in this utility model;

[0023] Figure 6 yes Figure 5 Cross-sectional view of BB section.

[0024] The reference numerals in the attached drawings are explained as follows: 101, top plate; 102, angle steel column; 103, shelf; 201, side plate; 202, back plate; 301, fixing plate; 302, connecting plate; 303, mounting bracket; 304, fixing column; 305, cam block; 401, limit spring; 402, swivel ring; 501, sliding door; 502, support plate; 503, wheel; 601, handle; 602, rubber pad; 7, anti-slip block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-6 As shown, a shelf with a flip-up door structure includes a top plate 101. Both sides of the top plate 101 are fixedly connected with symmetrical angle steel columns 102. Multiple shelf panels 103 are fixed at equal intervals between the symmetrical angle steel columns 102.

[0029] Each of the multiple shelves 103 is equipped with a flip-up assembly. The flip-up assembly includes a symmetrical fixed plate 301. The fixed plate 301 is fixedly connected to the angle steel column 102. A connecting plate 302 is fixedly connected to one side of the fixed plate 301. The connecting plate 302 is Z-shaped. A mounting bracket 303 is fixedly installed at the lower end of the connecting plate 302. The mounting bracket 303 is U-shaped with its opening away from the fixed plate 301.

[0030] A fixed post 304 is fixedly connected to the front end of the mounting bracket 303. A sliding door 501 is slidably connected inside the mounting bracket 303, and the sliding door 501 is located above the fixed post 304. A cam block 305 is rotatably connected to the fixed post 304. A limiting component is provided between the cam block 305 and the mounting bracket 303. An anti-slip block 7 is fixedly connected to the end of the cam block 305 away from the fixed post 304. When the sliding door 501 is flipped up and pushed into the mounting bracket 303, the cam block 305 is in a stationary state. The sliding door 501 and the cam block 304 are in a fixed state. 05 Slides at the top, and then the cam block 305 is released through the limiting component, so that the anti-slip block 7 is located behind the cam block 305. Then, when the child pulls the sliding door 501, the sliding door 501 and the cam block 305 roll, so that the cam block 305 drives the anti-slip block 7 to approach the lower end of the sliding door 501. When the sliding door 501 and the anti-slip block 7 come into contact, the sliding door 501 stops moving due to friction, thus preventing the sliding door 501 from sliding directly out of the mounting bracket 303 and hitting the child's head or face downwards, causing serious consequences.

[0031] The limiting component includes a rotating ring 402, which is rotatably connected to the side of the cam block 305 near the fixed plate 301. The mounting bracket 303 has a groove located below the cam block 305.

[0032] A limiting spring 401 is fixedly connected between the rotating ring 402 and the mounting bracket 303. The limiting spring 401 is sleeved on the outside of the fixed column 304. Initially, the cam block 305 is located in the groove. When it is necessary to limit the sliding door 501, the cam block 305 is pulled out of the groove, and then the cam block 305 rotates around the fixed column 304.

[0033] The top plate 101 has symmetrical side plates 201 on both sides. The side plates 201 are fixedly connected to the angle steel column 102. The rear end of the angle steel column 102 is fixedly connected to the back plate 202, which is located between the symmetrical side plates 201.

[0034] A support plate 502 is fixedly connected to the rear end of the sliding door 501. The support plate 502 is located below the sliding door 501 and forms a slant shape with the sliding door 501. A wheel 503 is rotatably connected to the lower end of the support plate 502.

[0035] When the sliding door 501 is located at the upper end of the mounting bracket 303, the wheel 503 abuts against the mounting bracket 303. When the sliding door 501 is located at the front end of the mounting bracket 303, the wheel 503 abuts against the cam block 305. When the sliding door 501 needs to be opened, push the sliding door 501 into the mounting bracket 303, and the wheel 503 rolls against the mounting bracket 303. When the sliding door 501 needs to be closed, pull the sliding door 501 outward until the wheel 503 abuts against the cam block 305.

[0036] The sliding door 501 has a handle 601 fixedly connected to its front end, and the shelf 103 has symmetrical rubber pads 602 fixedly connected to its front end.

[0037] Working principle: When it is necessary to open the sliding door 501, flip the sliding door 501 upwards and push it into the mounting bracket 303, causing the wheel 503 to roll against the mounting bracket 303. When it is necessary to close the sliding door 501, pull the sliding door 501 outwards until the wheel 503 abuts against the cam block 305. The rubber pad 602 protects the sliding door 501 from impacting the shelf 103 and causing damage. For families with children, who are curious and lack the ability to judge danger, parents can flip the sliding door 501 upwards and push it into the mounting bracket 303. At this time, the cam block 305 is stationary. The sliding door 501 slides against the upper end of the cam block 305, then pulls the cam block 305 away from the groove, and then rotates the cam block 305 around the fixed column 304 to release the cam block 305, so that the anti-slip block 7 is located behind the cam block 305. When the child pulls the sliding door 501, the sliding door 501 and the cam block 305 roll, so that the cam block 305 drives the anti-slip block 7 to approach the lower end of the sliding door 501. When the sliding door 501 comes into contact with the anti-slip block 7, the sliding door 501 stops moving due to friction, thus preventing the sliding door 501 from sliding directly out of the mounting bracket 303 and hitting the child's head or face downwards, causing serious consequences.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shelf upturned door structure, comprising a top plate (101), both sides of the top plate (101) are fixedly connected with front and rear symmetrical angle steel columns (102), characterized in that: Multiple storage panels (103) are fixed at equal intervals between the symmetrical angle steel columns (102); Each of the multiple storage shelves (103) is provided with an upward-flipping assembly. The upward-flipping assembly includes symmetrical fixing plates (301). The fixing plates (301) are fixedly connected to the angle steel column (102). A connecting plate (302) is fixedly connected to one side of the fixing plate (301). The connecting plate (302) is Z-shaped. A mounting bracket (303) is fixedly installed at the lower end of the connecting plate (302). The mounting bracket (303) is U-shaped with its opening away from the fixing plate (301). A fixed column (304) is fixedly connected to the front end of the mounting bracket (303). A sliding door (501) is slidably connected inside the mounting bracket (303). The sliding door (501) is located above the fixed column (304). A cam block (305) is rotatably connected to the fixed column (304). A limiting component is provided between the cam block (305) and the mounting bracket (303). An anti-slip block (7) is fixedly connected to the end of the cam block (305) away from the fixed column (304).

2. The structure of the door on the shelf according to claim 1, characterized in that: The limiting component includes a rotating ring (402), which is rotatably connected to the side of the cam block (305) near the fixing plate (301). The mounting bracket (303) has a groove located below the cam block (305).

3. The structure of the door on the shelf according to claim 2, characterized in that: A limiting spring (401) is fixedly connected between the rotating ring (402) and the mounting bracket (303), and the limiting spring (401) is sleeved on the outside of the fixed column (304).

4. The structure of the door on the shelf according to claim 1, characterized in that: The top plate (101) has symmetrical side plates (201) on both sides. The side plates (201) are fixedly connected to the angle steel column (102). The rear end of the angle steel column (102) is fixedly connected to a back plate (202). The back plate (202) is located between the symmetrical side plates (201).

5. The structure of the door on the shelf according to claim 1, characterized in that: A support plate (502) is fixedly connected to the rear end of the sliding door (501). The support plate (502) is located below the sliding door (501). The support plate (502) and the sliding door (501) are in a tandem shape. A wheel (503) is rotatably connected to the lower end of the support plate (502).

6. The structure of the door on a shelf according to claim 5, characterized in that: When the sliding door (501) is located at the upper end of the mounting bracket (303), the wheel (503) abuts against the mounting bracket (303). When the sliding door (501) is located at the front end of the mounting bracket (303), the wheel (503) abuts against the cam block (305).

7. The structure of the door on a shelf according to claim 6, characterized in that: The sliding door (501) has a handle (601) fixedly connected to its front end, and the shelf (103) has symmetrical rubber pads (602) fixedly connected to its front end.

Citation Information

Patent Citations

  • Connecting structure between upturning door and cabinet body

    CN221346711U