A bottom rail

Abstract

The application relates to the field of drawer slide rails, and provides a bottom supporting rail which comprises a fixed rail, a sliding rail and an adjusting assembly; the sliding rail is in sliding connection with the fixed rail; the adjusting assembly comprises a handle seat, an adjusting nut, an adjusting block and a screw rod, the handle seat is internally provided with a limiting groove, the adjusting nut, the adjusting block and the screw rod are arranged in the limiting groove, one end of the adjusting block is fixedly connected with the screw rod, the other end of the adjusting block is oppositely arranged at the top of the sliding rail, the adjusting nut is in threaded connection with the screw rod, the adjusting block is driven to move in the limiting groove by twisting the adjusting nut, the screw rod drives the adjusting block to move along the handle seat towards the sliding rail by twisting the adjusting nut, and the drawer is lifted up by moving the adjusting block, so that the height of the drawer is adjusted, the operation is convenient, and the assembly and maintenance efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of drawer slides, and in particular to a bottom support slide. Background Technology

[0002] In common drawer installations, the drawer and slide rails are typically secured directly with screws. Since the mounting holes are located below the slide rails, the installer must reach under the drawer, making the operation difficult and alignment challenging. Furthermore, once the drawer and slide rails are secured, disassembly is difficult. If the user needs to replace the drawer, the screws under the slide rails must be removed, which is inconvenient. Moreover, because there is no adjustment function between the drawer and slide rails after securing them, the installation requires a high level of skill. Excessive height misalignment during installation will prevent the drawer from opening and closing properly and detract from the overall aesthetics of the drawer. Utility Model Content

[0003] This application aims to improve at least one technical problem in the background art.

[0004] This application provides a bottom support rail, which includes a fixed rail, a sliding rail, and an adjustment component;

[0005] The sliding rail is slidably connected to the fixed rail;

[0006] The adjustment assembly includes a handle seat, an adjusting nut, an adjusting block, and a screw. The handle seat is movably connected to the sliding rail. The handle seat has a limiting groove. The adjusting nut is rotatably disposed in the limiting groove. One end of the adjusting block is fixedly connected to the screw, and the other end of the adjusting block is disposed opposite to the top of the sliding rail. The screw passes through the limiting groove and is threadedly connected to the adjusting nut, so that by twisting the adjusting nut, the screw and the adjusting block can be driven to move axially within the handle seat.

[0007] According to some technical solutions of this application, the adjusting block has an inclined surface at one end near the sliding rail, and the top edge of the sliding rail has an arc-shaped surface, with the inclined surface and the arc-shaped surface being arranged opposite to each other.

[0008] According to some technical solutions of this application, a protrusion is provided on one side of the handle seat, and a wrench is provided on the other side of the handle seat. A limiting protrusion is provided on the top of the wrench. The end and side of the sliding rail are respectively provided with a first connecting hole and a second connecting hole. The protrusion is used to engage with the first connecting hole, and the limiting protrusion is used to engage with the second connecting hole when the wrench is twisted, so as to achieve quick connection.

[0009] According to some technical solutions of this application, the handle seat is further provided with a fixing seat, which is located above the adjusting nut and is snap-fitted to the handle seat.

[0010] According to some technical solutions of this application, the bottom support rail also includes a buffer component, which is disposed on the fixed rail and is used to buffer the impact of the sliding rail and limit the insertion depth of the sliding rail.

[0011] According to some technical solutions of this application, the buffer assembly includes a support base and a lever. The support base is fixed on the fixed rail, and the lever is fixed on the sliding rail. The support base is provided with a guide groove, and one end of the lever is used to cooperate with the guide groove when the sliding rail slides in.

[0012] According to some technical solutions of this application, along the length direction of the support base, the guide groove is a limiting structure that gradually moves inward from both sides.

[0013] According to some technical solutions of this application, the support base is a rubber support base or a plastic support base.

[0014] The bottom support rail provided in this application has at least the following beneficial effects: by turning the adjusting nut, the drive screw moves the adjusting block along the handle seat toward the sliding rail, thereby lifting the drawer by moving the adjusting block to adjust the height of the drawer, which is convenient to operate and improves assembly and maintenance efficiency. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of the support rail provided in the embodiments of this application;

[0016] Figure 2 A side view of the support rail provided in an embodiment of this application;

[0017] Figure 3 A three-dimensional structural schematic diagram of the adjustment component provided in the embodiments of this application;

[0018] Figure 4 This is a top view of the adjustment component provided in an embodiment of this application;

[0019] Figure 5 This is a schematic diagram of the structure of the buffer component provided in an embodiment of this application.

[0020] In the attached diagram: 100-fixed rail; 200-sliding rail; 300-adjusting component; 400-buffering component; 410-support base; 420-paddle; 411-guide groove; 310-handle base; 311-limiting groove; 312-protrusion; 350-wrench part; 320-adjusting nut; 330-adjusting block; 340-screw; 201-arc surface; 351-limiting protrusion; 360-fixed base. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application 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 or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0024] The following is combined with Figures 1 to 5 The embodiments of this utility model are described below.

[0025] This application provides a bottom support rail, which includes a fixed rail 100, a sliding rail 200, and an adjustment component 300;

[0026] The sliding rail 200 is slidably connected to the fixed rail 100;

[0027] The device includes a handle base 310, an adjusting nut 320, an adjusting block 330, and a screw 340. The handle base 310 is movably connected to the sliding rail 200. The handle base 310 has an installation cavity and a limiting groove 311. The limiting groove 311 is located in the installation cavity. The adjusting block 330 is located in the installation cavity. The adjusting nut 320 is rotatably located in the limiting groove 311 to limit the axial displacement of the adjusting nut 320. One end of the adjusting block 330 is fixedly connected to the screw 340, and the other end of the adjusting block 330 is positioned opposite to the top of the sliding rail 200. The screw 340 passes through the limiting groove 311 and is threadedly connected to the adjusting nut 320, so that by twisting the adjusting nut 320, the screw 340 and the adjusting block 330 can be driven to move axially within the handle base 310.

[0028] During actual assembly, if a drawer height misalignment is found, turning the adjusting nut 320 will drive the screw 340 axially via a threaded drive. The screw 340 will then move the fixed adjusting block 330 synchronously towards the top of the slide rail 200. After contacting the top of the slide rail 200, the adjusting block 330 will continue to move, lifting the drawer until it reaches the target height. Similarly, turning the adjusting nut 320 in the opposite direction will reset the adjusting block 330, thus lowering the drawer height. Therefore, by using the contact between the adjusting block 330 and the slide rail 200 to push the drawer, the height position of the drawer relative to the slide rail 200 is changed. This operation is convenient; height adjustment can be achieved simply by turning the adjusting nut 320, without disassembling the drawer or bottom rail, improving assembly and maintenance efficiency.

[0029] In some implementations, the adjusting block 330 has an inclined surface at one end near the sliding rail 200, and the top edge of the sliding rail 200 has an arc-shaped surface 201, with the inclined surface and the arc-shaped surface 201 positioned opposite each other. After the drawer is installed, when the adjusting nut 320 is turned to drive the adjusting block 330 toward the sliding rail 200, the inclined surface of the adjusting block 330 contacts the arc-shaped surface 201 at the top of the sliding rail 200. As the adjusting block 330 continues to move, the inclined surface slides along the arc-shaped surface 201 and pushes up the drawer, achieving simultaneous height adjustment and lateral calibration. The guiding effect of the arc-shaped surface 201 prevents the adjusting block 330 from jamming during movement, avoiding jamming between the adjusting block 330 and the sliding rail 200, and reducing wear after long-term use.

[0030] In some implementations, the handle seat 310 has a protrusion 312 on one side and a wrench part 350 on the other side. The top of the wrench part 350 has a limiting protrusion 351. The end and side of the sliding rail 200 are respectively provided with a first connecting hole and a second connecting hole. The protrusion 312 is used to engage with the first connecting hole, and the limiting protrusion 351 is used to engage with the second connecting hole when the wrench part 350 is twisted, so as to achieve quick connection.

[0031] When assembling the handle base 310 and the slide rail 200, first, insert the protrusion 312 on one side of the handle base 310 into the first connecting hole at the end of the slide rail 200. After the protrusion 312 engages with the first connecting hole, turn the wrench 350 on the other side of the handle base 310 so that the limiting protrusion 351 at the top of the wrench 350 engages with the second connecting hole on the side of the slide rail 200, thus quickly fixing the handle base 310 to the slide rail 200. For disassembly, turn the wrench 350 in the opposite direction to disengage the limiting protrusion 351 from the second connecting hole, allowing the handle base 310 to be quickly removed without bolts, screws, or other fasteners. Therefore, the handle base 310 can be installed using a snap-fit ​​method, improving assembly efficiency; turning the wrench 350 in the opposite direction unlocks it, facilitating later maintenance and adjustment of the component 300 or removal of the drawer.

[0032] In some implementations, the handle base 310 is further provided with a fixing seat 360, which is located above the adjusting nut 320 and snap-fitted to the handle base 310. When assembling the adjusting assembly 300, the adjusting nut 320 and the screw 340 are first assembled and then inserted into the limiting groove 311 of the handle base 310. Then, the fixing seat 360 is snapped onto the handle base 310 from above. The fixing seat 360 is secured to the handle base 310 through a snap-fit ​​structure, covering the adjusting nut 320. This reduces the amount of impurities entering the limiting groove 311 and also makes the outer side of the handle base 310 smoother.

[0033] In some implementations, the support rail also includes a buffer assembly 400, which is disposed on the fixed rail 100 to buffer the impact of the sliding rail 200 and limit the insertion depth of the sliding rail 200. This buffering reduces the hard collision between the sliding rail 200 and the interior of the fixed rail 100 during insertion, and also prevents over-insertion of the sliding rail 200, which could cause damage to components such as the adjusting assembly 300 and the connecting structure.

[0034] Optionally, the buffer assembly 400 includes a support base 410 and a paddle 420. The support base 410 is fixed on the fixed rail 100, and the paddle 420 is fixed on the sliding rail 200. The support base 410 is provided with a guide groove 411, and one end of the paddle 420 is used to engage with the guide groove 411 when the sliding rail 200 slides in.

[0035] Furthermore, along the length of the support 410, the guide groove 411 is a limiting structure that gradually converges inward from both sides. When the sliding rail 200 is inserted, one end of the paddle 420 enters the inlet of the guide groove 411. As the sliding rail 200 moves, the paddle 420 slides inward along the guide groove 411. The two side walls of the guide groove 411 gradually contact the paddle 420, generating lateral pressure on the paddle 420 to gradually buffer the impact force on the sliding rail 200. During insertion, the contact area with the walls of the guide groove 411 gradually increases. When the paddle 420 reaches the innermost point of the guide groove 411 where the gap is smallest, the sliding rail 200 cannot be inserted further, thus achieving the limiting effect. By limiting the movement of the paddle 420 through the guide groove 411, the maximum insertion depth of the sliding rail 200 is limited. This reduces noise and avoids damage to the structure or other components; at the same time, the overall buffer structure is simple, eliminating the need for complex rebound or buffer structures.

[0036] In some implementations, the support base 410 is a rubber support base or a plastic support base. Rubber and plastic have good elasticity and wear resistance, which can buffer impacts through deformation, reduce frictional loss, reduce collision noise and structural damage from hard contact, and extend the service life of the bottom rail or other accessories. At the same time, the processing technology is simple, the cost is low, it is suitable for mass production, and it can adapt to the frequent friction of drawer opening and closing and the daily use environment.

[0037] The preferred embodiments of the present invention have been described in detail above, but the present disclosure is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present disclosure.

Claims

1. A bottom support rail, characterized in that: include: Fixed rail (100); A sliding rail (200) is slidably connected to the fixed rail (100); An adjusting assembly (300) includes a handle seat (310), an adjusting nut (320), an adjusting block (330), and a screw (340). The handle seat (310) is movably connected to the sliding rail (200). A limiting groove (311) is provided in the handle seat (310). The adjusting nut (320) is rotatably disposed in the limiting groove (311). One end of the adjusting block (330) is fixedly connected to the screw (340), and the other end of the adjusting block (330) is disposed opposite to the top of the sliding rail (200). The screw (340) passes through the limiting groove (311) and is threadedly connected to the adjusting nut (320) so that the screw (340) and the adjusting block (330) can be driven to move axially within the handle seat (310) by twisting the adjusting nut (320).

2. The bottom support rail according to claim 1, characterized in that: The adjusting block (330) has an inclined surface at one end near the sliding rail (200), and the top edge of the sliding rail (200) has an arc-shaped surface (201). The inclined surface and the arc-shaped surface (201) are arranged opposite to each other.

3. The bottom support rail according to claim 1, characterized in that: The handle seat (310) has a protrusion (312) on one side and a wrench part (350) on the other side. The wrench part (350) has a limiting protrusion (351) on its top. The sliding rail (200) has a first connecting hole and a second connecting hole at its end and side, respectively. The protrusion (312) is used to engage with the first connecting hole, and the limiting protrusion (351) is used to engage with the second connecting hole when the wrench part (350) is twisted, so as to achieve quick connection.

4. The bottom support rail according to claim 1, characterized in that: The handle seat (310) is also provided with a fixing seat (360), which is located above the adjusting nut (320) and is snapped together with the handle seat (310).

5. The bottom support rail according to claim 1, characterized in that: It also includes a buffer assembly (400) disposed on the fixed rail (100) for buffering the impact of the sliding rail (200) and limiting the insertion depth of the sliding rail (200).

6. The bottom support rail according to claim 5, characterized in that: The buffer assembly (400) includes a support base (410) and a lever (420). The support base (410) is fixed on the fixed rail (100), and the lever (420) is fixed on the sliding rail (200). The support base (410) is provided with a guide groove (411), and one end of the lever (420) is used to engage with the guide groove (411) when the sliding rail (200) slides in.

7. The bottom support rail according to claim 6, characterized in that: Along the length of the support base (410), the guide groove (411) is a limiting structure that gradually moves inward from both sides.

8. The bottom support rail according to claim 6, characterized in that: The support base (410) is a rubber support base or a plastic support base.

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