Movable drawer

By introducing a support frame and a double pulley design into the movable drawer, the problem of drawer tilting caused by inaccurate pulley material or installation is solved, achieving stable and smooth drawer operation, and adapting to different floor environments.

CN223830642UActive Publication Date: 2026-01-27SUZHOU AERTAI BUSINESS EQUIP CO LTD
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Patent Information

Application Number
CN202520156426.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-01-27
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Existing drawers, if the roller material or installation is inaccurate, are prone to tilting on uneven surfaces, affecting their use and the safety of the items inside.

Method used

A movable drawer assembly was designed, comprising a support frame, a support plate, auxiliary casters, and a slot structure. The support frame provides lateral support, the bottom casters slide on the ground, and the auxiliary casters cooperate with the guide slots to form a double caster protection system, ensuring smooth movement of the drawer.

Benefits of technology

Effectively prevents drawers from tilting during operation, improving the user experience, ensuring safe storage of items, adapting to different floor conditions, and providing stable and smooth drawer operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223830642U_ABST
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Abstract

The utility model belongs to the technical field of movable drawers, and particularly relates to a movable drawer which comprises a movable drawer assembly, a supporting frame is arranged at the top of the movable drawer assembly, a supporting plate is fixedly connected in the supporting frame, an auxiliary pulley is fixedly connected in the supporting frame, a first clamping groove is formed in the outer wall of the supporting frame, and a second clamping groove is formed in the outer wall of the supporting frame. A supporting rod is connected into the first clamping groove in a clamped mode, and a supporting frame is arranged on the side of the supporting rod. The movable drawer assembly comprises a bottom plate, the bottom of the bottom plate is fixedly connected with a bottom supporting groove, the interior of the bottom supporting groove is fixedly connected with a bottom pulley, and the top of the bottom plate is provided with a second clamping groove; when the bottom pulleys are stressed unevenly due to factors such as unevenness of the ground, the auxiliary pulleys can share lateral pressure, it is guaranteed that the drawer is stably and smoothly pulled, the problem that a traditional movable drawer is prone to inclining is solved to a great extent, and smoother and more reliable use experience is brought to a user.
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Description

Technical Field

[0001] This utility model relates to the field of movable drawer technology, specifically a movable drawer. Background Technology

[0002] Shelving, as a device for storing and displaying goods, has a history dating back to ancient times. Early shelving was mostly simple wooden structures, primarily used in shops and warehouses to store small quantities of items; its structure was simple and its function limited. With the development of commerce and the scaling up of industrial production, the demand for shelving increased, and shelving technology gradually improved. During the Industrial Revolution, metal materials began to be used in shelving manufacturing, significantly enhancing its load-bearing capacity and durability. In the mid-20th century, with the rise of automation technology, some shelving systems with rudimentary automation functions emerged, such as mobile shelving with mechanical transmission devices, improving warehouse space utilization and the efficiency of goods storage and retrieval.

[0003] In the furniture and storage equipment sector, drawers are widely used in various cabinets for convenient access to items. Most existing drawers rely on bottom casters for easy pulling, with casters made of various materials that reduce resistance through rolling, making them easy for users to operate. However, practical problems exist: the casters tend to tilt when pulled out. Firstly, if the floor is uneven, with bumps or dips, the caster track is unstable, causing uneven force on one side of the drawer and resulting in tilting. This is common in older homes. Secondly, poor-quality casters or inaccurate installation, such as concentricity deviations or being at different levels, prevent coordinated operation during pulling, also leading to tilting, affecting usability, and potentially tipping over items inside the drawer.

[0004] Therefore, a movable drawer is proposed to address the above problems. Utility Model Content

[0005] To address the shortcomings of existing technology and solve the problem of drawers being widely used in various cabinets in the furniture and storage equipment field for convenient access to items, current drawers mostly rely on bottom casters for assistance in pulling them out. These casters come in various materials and use rolling to reduce resistance, making them easy for users to operate. However, practical problems exist: the casters tend to tilt when sliding on the floor. Firstly, if the floor is uneven, with bumps or dips, the caster track is unstable, causing uneven force on one side of the drawer and resulting in tilting. This is common in older homes. Secondly, poor-quality casters or inaccurate installation, such as concentricity deviations or being at different levels, prevent coordinated operation during pulling, also easily causing tilting, affecting usability, and potentially tipping over items inside the drawer.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A movable drawer of this utility model includes a movable drawer assembly. The top of the movable drawer assembly is provided with a support frame, and a support plate is fixedly connected inside the support frame. An auxiliary pulley is fixedly connected inside the support frame. A first slot is opened on the outer wall of the support frame, and a support rod is engaged inside the first slot. A support frame is provided on the side of the support rod. The movable drawer assembly includes a bottom plate. A bottom support groove is fixedly connected to the bottom of the bottom plate, and a bottom pulley is fixedly connected inside the bottom support groove. A second slot is opened on the top of the bottom plate, and a first buckle is engaged inside the second slot. A side plate is fixedly connected to the top of the first buckle. A guide groove is fixedly connected to the outer wall of the side plate. A front plate is engaged on one side of the side plate. A third slot is opened on the other side of the side plate, and a second buckle is engaged inside the third slot. A rear plate is fixedly connected to the end of the second buckle.

[0007] Preferably, the base plate and the front plate are integrated, and the front plate and the side plate form an interlocking structure.

[0008] Preferably, the side plate and the bottom plate form an engaging structure through the first buckle and the second slot, and the side plate and the guide groove are integrated.

[0009] Preferably, the rear plate and the second buckle are integrated, and the rear plate forms an engaging structure with the side plate through the second buckle and the third slot.

[0010] Preferably, the base plate forms a sliding structure with the ground through the bottom pulley, and the bottom support groove and the bottom pulley form a detachable structure.

[0011] Preferably, the support frame and the support plate are integrated, and the first slots are arranged at equal intervals with respect to the outer wall of the support frame.

[0012] Preferably, the support frame and auxiliary pulley are integrated, and the side plate forms a sliding structure with the support frame through the guide groove, auxiliary pulley and support frame.

[0013] The advantages of this utility model are:

[0014] 1. This utility model features a movable drawer assembly, which is the core component of the overall structure. The top support frame plays a crucial supporting role; it is integrated with the base plate, ensuring structural stability. Simultaneously, the first slots evenly spaced on the outer wall of the support frame engage the support rods, providing additional lateral support for the drawer and effectively enhancing stability, preventing wobbling or tilting during operation. The various components of the movable drawer assembly are ingeniously connected. The base plate and front plate are integrated, reducing gaps and improving both aesthetics and overall strength. The side plates engage with the base plate's second slot via first snaps, ensuring convenient and tight installation. Furthermore, the side plates and guide grooves are integrally formed, facilitating subsequent collaboration with the support frame. The rear plate engages with the side plates' third slot via second snaps, again ensuring structural integrity. The pulley design is also ingenious. Bottom casters are fixed in the bottom support groove at the bottom of the base plate. The detachable structure of both allows for easy replacement of casters to adapt to different ground conditions or usage needs. The bottom casters and the ground form a sliding structure to achieve basic pull-out movement. At the same time, the auxiliary casters inside the support frame cooperate with the guide grooves of the side plate to form a double caster protection system. When the bottom casters are subjected to uneven force due to factors such as uneven ground, the auxiliary casters can share the lateral pressure, ensuring that the drawer can be pulled out smoothly and steadily. This greatly solves the problem of traditional movable drawers being prone to tilting, bringing users a smoother and more reliable user experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the entire utility model from the front view;

[0017] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the overall frontal view of the opened structure of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0020] Figure 5 This is a three-dimensional structural diagram of the movable drawer assembly of this utility model.

[0021] In the diagram: 1. Movable drawer assembly; 2. Support frame; 3. First slot; 4. Support rod; 5. Support frame; 6. Support plate; 7. Auxiliary casters; 101. Front panel; 102. Bottom panel; 103. Bottom support groove; 104. Bottom casters; 105. Second slot; 106. First buckle; 107. Guide groove; 108. Second buckle; 109. Third slot; 110. Back panel; 111. Side panel. Detailed Implementation

[0022] 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 scope of protection of the present utility model.

[0023] Example 1

[0024] like Figure 1 The movable drawer shown includes a movable drawer assembly 1, a support frame 2, a first slot 3, a support rod 4, a support frame 5, a support plate 6, and auxiliary pulleys 7.

[0025] Please see Figures 1 to 5The illustrated movable drawer includes a movable drawer assembly 1. A support frame 2 is mounted on the top of the movable drawer assembly 1, and a support plate 6 is fixedly connected inside the support frame 2. An auxiliary pulley 7 is also fixedly connected inside the support frame 2. A first slot 3 is formed on the outer wall of the support frame 2, and a support rod 4 is engaged inside the first slot 3. A support frame 5 is provided on the side of the support rod 4. The movable drawer assembly 1 includes a bottom plate 102. A bottom support groove 103 is fixedly connected to the bottom of the bottom plate 102, and a bottom pulley 104 is fixedly connected inside the bottom support groove 103. A second slot 105 is formed on the top of the bottom plate 102, and a first buckle 106 is engaged inside the second slot 105. A side plate 111 is fixedly connected to the top of the first buckle 106. A guide groove 107 is fixedly connected to the outer wall of the side plate 111, and a front plate 101 is engaged on one side of the side plate 111. A third slot 109 is formed on the other side of the side plate 111. The internal snap-fit ​​connection is provided by a second snap-fit ​​108, and the end of the second snap-fit ​​108 is fixedly connected to a rear plate 110; the bottom plate 102 and the front plate 101 are integrally formed, and the front plate 101 and the side plate 111 form a snap-fit ​​structure; the side plate 111 forms a snap-fit ​​structure with the bottom plate 102 through a first snap-fit ​​106 and a second snap-fit ​​groove 105, and the side plate 111 and the guide groove 107 are integrally formed; the rear plate 110 and the second snap-fit ​​108 are integrally formed, and the rear plate 110 is connected to the second snap-fit ​​108 through a second snap-fit ​​106 and a guide groove 107. The buckle 108, the third slot 109, and the side plate 111 form an engaging structure; the bottom plate 102 forms a sliding structure with the ground through the bottom pulley 104, and the bottom support groove 103 and the bottom pulley 104 form a detachable structure; the support frame 2 and the support plate 6 are integrated, and the first slot 3 is arranged at equal intervals with respect to the outer wall of the support frame 2; the support frame 2 and the auxiliary pulley 7 are integrated, and the side plate 111 forms a sliding structure with the support frame 2 through the guide groove 107, the auxiliary pulley 7, and the guide groove 107.

[0026] Working Principle: First, the user naturally grasps the front panel 101 of the drawer and gently pulls it outwards. At this moment, the ingenious design of the drawer bottom comes into play. Within the bottom support groove 103 fixed to the bottom of the bottom panel 102, the bottom rollers 104 are in close contact with the ground, forming a sliding structure. Driven by the pulling force, the bottom rollers 104 smoothly roll on the ground, as if equipping the drawer with flexible "wheels." The drawer thus begins its initial outward pulling action, forming the basic power source for the drawer's movement and setting the stage for smooth opening and closing operations. As the drawer moves outwards, the guide groove 107 on the outer wall of the side panel 111 seamlessly engages and closely cooperates with the auxiliary rollers 7 inside the support frame 2. Throughout the entire pulling process, the guide groove 107, like a tamed track, slides precisely along the auxiliary rollers 7. On the one hand, the auxiliary pulley 7 acts like a reliable "bodyguard," actively sharing some of the lateral forces that may arise when the drawer moves laterally due to various factors. Especially when the ground is not flat and the bottom pulley 104 is unevenly stressed and tends to tilt, the auxiliary pulley 7 can step in in time. With its close fit with the guide groove 107, it ensures that the drawer always remains horizontal and moves forward stably, preventing tilting. On the other hand, the coordinated operation of the two is like a precise guide rail system. It not only strictly constrains the movement path of the drawer, making it run precisely according to the pre-set trajectory, but also greatly improves the smoothness of the drawer, so that the user does not feel any jamming. It is as if the drawer is sliding lightly under the support of air. The ingenious connection of each component of the drawer assembly itself lays a solid foundation for the stable operation of the drawer.The base plate 102 and the front plate 101 are integrated, making the front of the drawer seamless. When subjected to tensile or compressive forces, the structure remains as stable as a rock, eliminating any concerns about deformation or separation. The side plate 111 is cleverly and tightly engaged with the second slot 105 of the base plate 102 via the first latch 106. Simultaneously, the back plate 110 is also seamlessly connected to the third slot 109 of the side plate 111 via the second latch 108. In this way, the entire drawer frame appears as if meticulously crafted using mortise and tenon joinery. Even under the harsh conditions of frequent opening and closing and bearing heavy loads, all components remain firmly in place and tightly connected, maintaining the drawer's normal shape and providing a solid guarantee for the safe storage of items. The support frame 2 located at the top of the drawer, along with the support... The integrated support plate 6 acts like a protective umbrella over the drawer, providing a rock-solid foundation and significantly enhancing the overall load-bearing capacity of the drawer, allowing users to confidently place various items inside. The first slots 3, evenly spaced on the outer wall of the support frame 2, act like precise positioning slots, securely engaging the support rod 4. Combined with the support frame 5, this provides a sturdy "armor" for the drawer from the side. When the drawer is fully loaded and struggling to move forward, encountering significant resistance during the pulling process, this lateral reinforcement system effectively resists potential shaking, ensuring the drawer remains stable and moves smoothly along its intended path. Finally, the detachable design of the bottom support groove 103 and the bottom casters 104 is a brilliant touch. In daily use, wear and tear is inevitable due to the long-term friction between the bottom pulley 104 and the ground. In the event of special ground conditions, such as a rough surface or a pile of gravel, the pulley needs to be replaced to maintain good sliding performance. Users do not need to go through a lot of trouble. With a simple operation, they can easily remove the old pulley from the bottom support groove 103 and then replace it with a suitable new pulley. It is like giving the drawer a brand new "running shoe", allowing the drawer to continuously adapt to different usage environments and always maintain the best working condition.

[0027] 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.

Claims

1. A movable drawer, characterized in that: The system includes a movable drawer assembly (1), the top of which is provided with a support frame (2), and a support plate (6) is fixedly connected inside the support frame (2), and an auxiliary pulley (7) is fixedly connected inside the support frame (2). The outer wall of the support frame (2) is provided with a first slot (3), and a support rod (4) is engaged inside the first slot (3), and a support frame (5) is provided on the side of the support rod (4). The movable drawer assembly (1) includes a base plate (102), the bottom of which is fixedly connected to a bottom support groove (103), and the bottom support groove (103) is fixedly connected to a bottom pulley (104). The top of the base plate (102) is provided with a second slot (105), and the inside of the second slot (105) is engaged with a first buckle (106). The top of the first buckle (106) is fixedly connected to a side plate (111). The outer wall of the side plate (111) is fixedly connected with a guide groove (107), and one side of the side plate (111) is engaged with a front plate (101). The other side of the side plate (111) is provided with a third slot (109), and the inside of the third slot (109) is engaged with a second buckle (108). The end of the second buckle (108) is fixedly connected to a rear plate (110).

2. A movable drawer according to claim 1, characterized in that: The base plate (102) and the front plate (101) are integrated, and the front plate (101) and the side plate (111) form a snap-fit ​​structure.

3. A movable drawer according to claim 1, characterized in that: The side plate (111) is connected to the base plate (102) by the first buckle (106) and the second slot (105), and the side plate (111) and the guide groove (107) are integrated.

4. A movable drawer according to claim 1, characterized in that: The rear plate (110) and the second buckle (108) are integrated, and the rear plate (110) and the side plate (111) form a locking structure through the second buckle (108), the third slot (109).

5. A movable drawer according to claim 1, characterized in that: The base plate (102) forms a sliding structure with the ground through the bottom pulley (104), and the bottom support groove (103) and the bottom pulley (104) form a detachable structure.

6. A movable drawer according to claim 1, characterized in that: The support frame (2) and the support plate (6) are integrated, and the first slots (3) are arranged at equal intervals with respect to the outer wall of the support frame (2).

7. A movable drawer according to claim 1, characterized in that: The support frame (2) and the auxiliary pulley (7) are integrated, and the side plate (111) forms a sliding structure with the support frame (2) through the guide groove (107), the auxiliary pulley (7).