Drawer bottom rail
By using the upper and lower rails in conjunction, the ball bearing and track structure replaces the guide wheels, solving the problems of material consumption and space occupation, achieving smooth operation of the drawer and self-resetting function, and preventing jamming.
Patent Information
- Application Number
- CN202520269296.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-19
AI Technical Summary
The existing drawer guide wheel design increases material consumption and space occupation, and is prone to jamming due to malfunction.
The drawer uses a combination of upper and lower rails instead of guide wheels, and employs a ball bearing and rail structure, combined with a damper to achieve the drawer's sliding and self-resetting functions.
It reduces material consumption and space occupation, prevents drawers from jamming, increases drawer space utilization, and reduces noise during use.
Smart Images

Figure CN223695305U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a cabinet technical field especially relates to a drawer bottom rail. BACKGROUND
[0002] Drawer rail is a kind of device made of metal or other materials, groove or ridge, can bear, fixed, guide mobile device or equipment and reduce its friction. The longitudinal groove or ridge on the surface of drawer guide rail is used to guide and fix the drawer.
[0003] The drawer rail of Chinese patent with publication number CN205030813U discloses a drawer rail, including guide rail main body and guide wheel, guide rail main body is U-shaped structure, and the inside of guide rail main body is slidably connected with fixed strip, guide wheel is located in the inside of guide rail main body, guide wheel is connected with fixed strip, and the side, away from guide wheel, of fixed strip is connected with drawer;When needing to close drawer, force is applied to drawer, so that fixed strip slides towards the direction of the tail end of guide rail main body, thereby driving guide wheel to slide, until guide wheel and the tail end of guide rail main body abut, drawer is in closed state.
[0004] For the related technology in the above, the inventor finds that the technology has the following problems: using guide wheel as the main body of sliding not only increases material consumption and space, but also easily causes the whole drawer to be stuck due to the failure of a wheel in the use process. UTILITY MODEL CONTENT
[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of prior art, and provide a drawer bottom rail, the bottom rail is matched with upper rail, instead of existing guide wheel, not only reduces manufacturing space and material consumption, but also effectively prevents the sticking phenomenon in the process of drawing.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A kind of drawer bottom rail, including: upper rail, the bottom rail of cooperation upper rail sliding, damper installed on the bottom rail;The upper rail is installed on damper.
[0008] Preferably, the bottom rail includes a fixed frame installed in the drawer frame, a rail strip provided on the fixed frame, and a bead holder provided on the rail strip;The bottom rail is provided in the upper rail through the bead holder.
[0009] Preferably, the bead holder includes a bead hole, an outer shell for opening the bead hole, and a socket provided on the outer shell;The bead holder is inserted on the rail strip through the socket.
[0010] Preferably, the damper comprises a damping frame mounted on the bottom rail, a sliding bar arranged on the damping frame, a sliding block in sliding connection with the sliding bar, a pulling block mounted on the sliding block, and an oil pipe mounted on the pulling block; and the damper is mounted on the upper rail through the sliding block.
[0011] Compared with the prior art, the application has the following beneficial effects:
[0012] The upper rail and the bottom rail are matched, the guide rail body and the guide wheel in the prior art are replaced, only sliding friction is generated during the drawer pulling-out process, and the jamming phenomenon caused by the damage of the guide wheel is prevented; the bottom rail is further provided with a bead frame and a rail strip, the bead frame and the rail strip are simple in structure, the bead frame occupies less space and consumes less material compared with the guide wheel, and the bead frame and the rail strip are combined to effectively increase the utilization rate of the drawer space. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced as follows, and obviously, the drawings in the following description only relate to some embodiments of the present application, but are not a limitation on the present application.
[0014] Figure 1 It is a structural schematic view of the bottom rail of the drawer;
[0015] Figure 2 It is a structural schematic view of the bottom rail of the drawer; Figure 1
[0016] Figure 3 It is a structural schematic view of the bead frame; Figure 2
[0017] Figure 4 It is a structural schematic view of the damper. Figure 1 DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the present application will be further described in detail below with reference to the drawings. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0019] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0020] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. 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, and therefore should not be construed as a limitation of this utility model.
[0021] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.
[0022] Example 1:
[0023] like Figure 1 As shown, a drawer bottom rail includes: an upper rail 10, a bottom rail 20 that slides in conjunction with the upper rail 10, and a damper 30 mounted on the bottom rail 20; the upper rail 10 is mounted on the damper 30.
[0024] The bottom rail 20 is fixed inside the drawer frame, and upper rails 10 are installed on both sides of the drawer. The upper rails 10 are engaged with the bottom rail 20. When the drawer is pulled outward, the upper rails 10 slide outward on the bottom rail 20. This design replaces the existing design of the guide rail body and guide wheels, thus solving the problem of the rolling noise of the guide wheels when the guide rail body moves on the guide wheels. At the same time, the connection between the upper rail 10 and the bottom rail 20 of this drawer bottom rail, and the use of the bottom rail 20 instead of the guide wheels, can effectively reduce the space occupied by the guide wheels and increase the utilization rate of the drawer space.
[0025] Furthermore, in order to enable the bottom rail of the drawer to have a self-resetting effect, a damper 30 is installed on the upper rail 10. After the drawer is used, the drawer can be reset by the retraction force of the damper 30 without the use of external force, thereby reducing the noise caused by excessive external force.
[0026] like Figure 2As shown in the drawings, the bottom rail 20 comprises a fixed frame 21 installed in the drawer frame, a rail strip 22 arranged on the fixed frame 21, and a bead frame 23 arranged on the rail strip 22; the bottom rail 20 is arranged in the upper rail 10 through the bead frame 23.
[0027] The bottom rail 20 is installed in the drawer frame through the fixed frame 21.
[0028] The bottom rail 20 is arranged in the upper rail 10 through the first sliding of the bead frame 23 and the second sliding of the rail strip 22 in the bead frame 23, which greatly increases the distance of the drawer being pulled out and makes it easier to place articles.
[0029] As shown in the drawings, Figure 3 The bead frame 23 comprises a bead hole 231, a shell 232 for opening the bead hole 231, and a socket 233 arranged on the shell 232; the bead frame 23 is inserted on the rail strip 22 through the socket 233.
[0030] The bead frame 23 is provided with a ball in the bead hole 231, which reduces the contact area between the bead frame 23 and the upper rail 10 and the rail strip 22 when sliding, thereby reducing the sliding friction and providing convenience for effective sliding.
[0031] As shown in the drawings, Figure 4 The damper 30 comprises a damping frame 31 installed on the bottom rail 20, a sliding strip 32 arranged on the damping frame 31, a sliding block 33 in sliding connection with the sliding strip 32, a pull block 34 installed on the sliding block 33, and an oil pipe 35 installed on the pull block 34; the damper 30 is installed on the upper rail 10 through the sliding block 33.
[0032] As shown in the drawings, Figures 1 to 4 After use, the drawer bottom rail only needs to be released, and under the retraction of the oil pipe 35, the pull block 34 and the sliding block 33 move inward on the sliding strip 32, and the upper rail 10 installed on the sliding block 33 is retracted inward, thereby completing the action of the drawer returning to the drawer frame.
[0033] The basic principle and main features of the present application and the advantages of the present application are shown and described above, for those skilled in the art, obviously the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A drawer bottom rail, characterized in that, include: Upper rail (10), bottom rail (20) that slides with upper rail (10), and damper (30) mounted on bottom rail (20); the upper rail (10) is mounted on damper (30).
2. A drawer bottom rail according to claim 1, characterized in that, The bottom rail (20) includes a fixed frame (21) installed in the drawer frame, a rail (22) set on the fixed frame (21), and a bead holder (23) set on the rail (22); the bottom rail (20) is set in the upper rail (10) through the bead holder (23).
3. A drawer bottom rail according to claim 2, characterized in that, The bead holder (23) includes a bead hole (231), a housing (232) for opening the bead hole (231), and an insertion port (233) provided on the housing (232); the bead holder (23) is inserted into the track bar (22) through the insertion port (233).
4. A drawer bottom rail according to claim 1, characterized in that, The damper (30) includes a damping frame (31) mounted on the bottom rail (20), a slide bar (32) mounted on the damping frame (31), a slider (33) slidably connected to the slide bar (32), a pull block (34) mounted on the slider (33), and an oil pipe (35) mounted on the pull block (34); the damper (30) is mounted on the upper rail (10) via the slider (33).
Citation Information
Patent Citations
Drawer track
CN205030813U