Hidden guide rail of drawer

Abstract

The drawer hidden type guide rail comprises a fixed guide rail body, a strip-shaped fixed sliding block which enables the placement end of a drawer to be pulled is arranged on one side of the fixed guide rail body in a damping sliding mode, and a strip-shaped fixed block which is used for fixing the placement end of the drawer is connected to the end of the strip-shaped fixed sliding block in a clamped mode through a clamping hook. The strip-shaped fixing sliding blocks are fixed to the ends of the strip-shaped fixing sliding blocks in a sliding mode through combined clamping and fixing of the clamping hooks and the installation clamping openings, the strip-shaped fixing blocks can be fixed to the bottom end and the side face of the drawer, and when the rail needs to be replaced in the later period when the drawer is fixed to the strip-shaped fixing blocks. The guide rail and the drawer can be separated as long as the drawer slides out of the strip-shaped fixing sliding block in a contact mode through the strip-shaped fixing block from the strip-shaped fixing sliding block, so that the drawer is not damaged and the guide rail is not loosened when the guide rail is dismounted and replaced, and the dismounting and separating convenience of the guide rail and the drawer is further improved.

Description

Technical Field

[0001] This invention belongs to the field of drawer slide technology, specifically relating to a concealed drawer slide. Background Technology

[0002] High-end furniture typically uses two sets of drawer slides on the left and right sides to facilitate the pulling and pushing of drawers. Drawer slides consist of movable and fixed rails. Common drawer slides include two-section slides (one movable and one fixed rail) and three-section slides (two movable and one fixed rail). Each rail has ball bearings or rollers, which are constrained by cages. Because of the rolling friction between the slides, the drawer moves smoothly and effortlessly. However, with three-section drawer slides, the two roller cages are not interconnected, causing the middle and movable rails to move asynchronously. Furthermore, the roller cages have elastic elements and stop blocks at the front and rear ends to limit the movement of the movable and middle rails. This can cause collisions between the roller cages and the three-section slides, resulting in noise and affecting the structural performance of the product.

[0003] Therefore, a drawer slide with announcement number "CN206197482U" includes a fixed rail, a middle rail, a movable rail, a first roller retainer, and a second roller retainer. The fixed rail is slidably mounted parallel to the lower part of the middle rail via the first roller retainer, and the movable rail is slidably mounted parallel to the upper part of the middle rail via the second roller retainer. The drawer slide also includes a gear. The first roller retainer has a first rack parallel to the fixed rail, and the second roller retainer has a second rack parallel to the fixed rail. The gear shaft is located in the middle of the middle rail, and the upper and lower parts of the gear mesh with the first and second racks, respectively. The first and second roller retainers respectively have a first rack and a second rack. By utilizing the gear on the middle rail to mesh with the first and second racks, the first and second roller retainers are synchronously linked, allowing the movable rail and the middle rail to slide synchronously, increasing the accuracy of the slide and facilitating the sliding of the drawer.

[0004] However, for the aforementioned drawer slides, although the movable rail is slidably installed or fixedly installed on the second roller retainer, that is, the movable rail is slidably installed on the upper part of the middle rail through the second roller retainer, and the movable rail can slide back on the middle rail, there are still the following obvious defects in use: the movable rail in the aforementioned drawer slides is directly locked and fixed to both sides of the bottom of the drawer with screws. When the drawer slides are damaged and need to be replaced, the drawer is prone to some damage during the disassembly and assembly process, which will lead to the drawer slides becoming loose after installation. Summary of the Invention

[0005] The purpose of this invention is to provide a drawer concealed guide rail to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a drawer-concealed guide rail, comprising:

[0007] The fixed guide rail has a damped sliding strip-shaped fixed slider on one side for pulling out the drawer end. The end of the strip-shaped fixed slider is connected to a strip-shaped fixing block for fixing the drawer by a hook. One end of the strip-shaped fixing block has an installation slot that matches the hook for locking and fixing. One end of the other side of the strip-shaped fixed slider is inserted with an L-shaped pull-out positioning pin for locking and positioning the strip-shaped fixed slider when it is pulled out. One end of the strip-shaped fixed slider is inserted with a bottom rail connector for one-click derailment and gap height adjustment of the drawer.

[0008] Preferably, the strip fixing block is a frame-type structure with an opening on one side, and the outer surface of the strip fixing block is provided with mounting holes for fixing the drawer, so that the drawer plays a positioning role during the pulling process.

[0009] Preferably, the strip-shaped fixing block slides onto the outer surface of the strip-shaped fixing slider, and the mounting slot slides into the hook with an outwardly protruding structure at one end of the front side of the strip-shaped fixing slider, so that the drawer can be easily installed and fixed on the guide rail by mounting it on the strip-shaped fixing block.

[0010] Preferably, the fixed guide rail has a protruding positioning slide bar of strip shape on one side that is adapted to slide with the strip-shaped fixed slider, so that the strip-shaped fixed slider keeps in a straight pulling state and is more stable.

[0011] Preferably, one side of the strip-shaped fixed slider has a recessed guide groove to guide the strip-shaped fixed slider to slide in a straight line, so that the strip-shaped fixed slider always remains in a horizontal state during sliding.

[0012] Preferably, the front side of the strip-shaped fixing slider is provided with a pin opening, and one end of the pull-out positioning pin is inserted into the pin opening for positioning, and one end of the pull-out positioning pin extends downward, which is beneficial for positioning the position of the drawer when it is pulled out or closed.

[0013] Preferably, the positioning slider has uniformly provided sliding holes on one side corresponding to the strip-shaped fixing slider, and the strip-shaped fixing slider is inserted into the sliding holes through a pull-out positioning pin at one end to slide and position the drawer, so that the drawer can remain unchanged after being pulled out to a certain position.

[0014] Preferably, one side of the bottom rail connector is provided with an integrally formed handle via a torsion spring, and the bottom rail connector is provided with a gap compensation component for adjusting the drawer, so as to compensate for the gap height after the drawer is installed, making the drawer fit the cabinet better.

[0015] Preferably, one side of the fixed guide rail has evenly distributed mounting holes for fixing the fixed guide rail to both sides of the drawer mounting cavity of the cabinet, thereby fixing the fixed guide rail to the inner wall of the cabinet.

[0016] Compared with the prior art, the technical effects and advantages of this invention are as follows: This concealed drawer slide rail uses a strip-shaped fixing slider to slide on the fixed guide rail with damping. The strip-shaped fixing slider is fixed by a combination of hooks and mounting slots, allowing the strip-shaped fixing block to slide and be fixed at the end of the strip-shaped fixing slider. This allows the strip-shaped fixing block to be fixed to the bottom and side of the drawer. Furthermore, when the drawer needs to be replaced later, the guide rail can be separated from the drawer simply by the drawer sliding out from the strip-shaped fixing slider through the contact buckle of the strip-shaped fixing block. This prevents damage to the drawer and loosening of the guide rail during disassembly and replacement, further improving the convenience of disassembly and separation of the guide rail and drawer.

[0017] A gap compensation component, installed at one end of a strip-shaped fixed slider, allows the drawer slides to be installed on the side and bottom of the drawer. This gap compensation component can be flexibly adjusted to accommodate various drawer sizes. The simplified design and significantly reduced width of the gap compensation component greatly decrease installation space, allowing installation between narrow drawers and the drawer slides, further improving the ease of use and installation.

[0018] Because this product uses a strip-shaped fixing slider 2, it is no longer limited by the precision requirements of the drawer's processing dimensions. You only need to adjust the installation position of the strip-shaped fixing slider 2. When the old drawer slides are damaged and need to be replaced, this product can also be used to replace other types of slides (three-section ball bearing slides, simple powder-coated slides).

[0019] Existing concealed rails can only be installed on the sides of drawers, while this invention eliminates the left / right distinction and allows installation in the middle or other parts of the drawer. In practical use, there are often extra-wide drawers (around 1200mm-3000mm). Existing rails can only accommodate one set, reducing load-bearing capacity and sliding performance. This product allows for the installation of multiple rails to ensure stable load-bearing capacity and sliding performance, depending on the required quantity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2This is a schematic diagram of the rear view of the fixed guide rail structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the main structure of the strip-shaped fixed slider of the present invention;

[0023] Figure 4 This is a schematic diagram of the strip-shaped fixing block structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the bottom rail connector structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the pull-out positioning pin structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the installation of the concealed drawer guide rail of the present invention.

[0027] In the diagram: 1. Fixed guide rail; 2. Strip-shaped fixed slider; 3. Hook; 4. Strip-shaped fixing block; 5. Mounting bayonet; 6. Pull-out positioning pin; 7. Bottom rail connector; 8. Positioning slide bar; 9. Guide strip groove; 10. Pin opening; 11. Sliding fixed hole; 12. Handle; 13. Clearance compensation component; 14. Mounting hole; 15. Screw hole. Detailed Implementation

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Please see Figure 1-7 The present invention provides a technical solution: a drawer concealed guide rail, comprising:

[0030] A fixed guide rail 1 has a damped sliding strip-shaped fixing slider 2 on one side for pulling out the drawer. The strip-shaped fixing slider 2 can be installed on the bottom and side of the drawer, allowing the guide rail and drawer to be installed using their respective positions. The end of the strip-shaped fixing slider 2 is engaged with a strip-shaped fixing block 4 via a hook 3 to secure the drawer. The strip-shaped fixing block 4 is slidably installed on the outside of the strip-shaped fixing slider 2, facilitating drawer disassembly and guide rail replacement. One end of the strip-shaped fixing block 4 has a locking mechanism that matches the hook 3 for secure attachment. Install the bayonet 5 so that the strip fixing block 4 is snapped and fixed to the outside of the strip fixing slider 2. One end of the other side of the strip fixing slider 2 is inserted with an L-shaped pull-out positioning pin 6 for snapping and positioning the pull-out of the strip fixing slider 2. This pin can position the length of the drawer pulled out from the cabinet or table. One end of the strip fixing slider 2 is inserted with a bottom rail connector 7 for one-click derailment and height adjustment of the drawer. This allows for height adjustment of the drawer after installation, facilitating a perfect pull-out combination of the drawer with the cabinet or table.

[0031] The strip-shaped fixing block 4 has a frame-type structure with an opening on one side, and an assembly hole is provided on the outer surface of the strip-shaped fixing block 4 for assembling and fixing the drawer, so that the strip-shaped fixing block 4 is fixedly connected to the side and bottom of the drawer for sliding installation and fixing. The strip-shaped fixing block 4 slides and covers the outer surface of the strip-shaped fixing slider 2, and the mounting slot 5 slides into the hook 3 with an outward protrusion structure on the front side of the strip-shaped fixing slider 2. The fixed guide rail 1 has a positioning slide bar 8 with a strip structure on the side that is adapted to slide with the strip-shaped fixing slider 2. The surface of one side of the strip-shaped fixing slider 2 has a guide strip groove 9 to guide the strip-shaped fixing slider 2 to slide in a straight line, so that the strip-shaped fixing slider 2 can maintain horizontal sliding during the damped sliding process.

[0032] The strip-shaped fixing slider 2 has a pin opening 10 on its front side, and one end of the pull-out positioning pin 6 is inserted into the pin opening 10 for positioning, thereby positioning the length and position of the drawer when it is pulled out. One end of the pull-out positioning pin 6 extends downward. The positioning slider 8 has a sliding hole 11 on one side corresponding to the strip-shaped fixing slider 2, so that the pull-out positioning pin 6 is inserted into the sliding hole 11 to position the drawer. The strip-shaped fixing slider 2 slides and positions the drawer by inserting the pull-out positioning pin 6 at one end into the sliding hole 11. The bottom rail connector 7 has an integrally formed handle part 12 on one side through a torsion spring, and the bottom rail connector 7 has a gap compensation part 13 for adjusting the gap height of the drawer to avoid friction and collision with the inner wall of the cabinet or table. The fixing guide rail 1 has mounting holes 14 evenly distributed on one side to fix the fixing guide rail 1 to both sides of the drawer mounting cavity of the cabinet, thereby fixing the fixing guide rail 1. The bottom surface of the fixed guide rail 1 has screw holes 15 at both ends, thereby enabling the bottom mounting of the fixed guide rail 1.

[0033] The gap compensation component 13 includes an adjusting plate, an adjusting nut, and a locking block. The adjusting plate is slidably connected to the base of the bottom rail connector 7. The adjusting plate has a threaded post, the adjusting nut is connected to the threaded post, and the locking block is connected to the base through a detachable component and is in contact with the threaded post.

[0034] This invention addresses the shortcomings of currently available concealed drawer slides, which include: 1. An L-shaped hook at the end connecting the drawer and the slide is prone to breakage during transport, rendering the slide unusable. 2. A 6mm diameter, 10mm deep hole must be drilled at the connection point, compromising the overall structure and sealing of the board. This allows moisture to easily adhere during use, leading to deformation or even ruin of the board. It also increases the likelihood of harmful substances being released from the board, such as formaldehyde, benzene, and phenol from the adhesives.

[0035] 3. Existing drawer slides, due to their hook-like structure, are approximately 10mm longer than the drawer, and the hook protrudes about 10mm from the drawer's end panel. This affects the drawer's movement space and the overall aesthetics, especially when installed under a transparent countertop, where the small protrusion at the drawer's end panel is more clearly visible. This product, using a strip-shaped fixing slider 2, eliminates the issue of the drawer slide protruding from the end panel, achieving true concealed installation.

[0036] 4. Current guide rails have two installation methods: they can only be installed and fixed on the side or only on the bottom. This invention can achieve both side and bottom installation and fixing, depending on the actual processing of the cabinet.

[0037] 5. Existing concealed rails can only be installed on the left and right sides of the drawer. This invention does not require left and right distinction and is no longer limited to the sides of the drawer. It can be installed in the middle of the drawer or other parts. In actual use, there will be drawers that are very wide (about 1200MM-3000MM). Existing rails can only install one set, which will reduce the load-bearing capacity and sliding performance. This product can install multiple rails according to the demand to ensure the stability of load-bearing capacity and sliding performance.

[0038] 6. Existing drawer slides require strict adherence to dimensional accuracy during drawer machining to ensure smooth drawer operation. This product, using a strip-shaped fixed slider 2, is no longer limited by the dimensional accuracy requirements of the drawer; only the installation position of the strip-shaped fixed slider 2 needs to be adjusted. When old drawer slides are damaged and need replacement, this product can also be used to replace other types of slides (three-section ball bearing slides, simple powder-coated slides).

[0039] Specifically, in use, firstly, insert the bottom rail connector 7 into one end of the strip-shaped fixed slider 2. Then, slide the strip-shaped fixed slider 2 onto the positioning slide bar 8 on the fixed guide rail 1 via the built-in damper. Next, fix the two assembled guide rails to both sides of the inner cavity of the drawer space in the cabinet or table using the mounting holes 14 on the fixed guide rail 1. Then, install the strip-shaped fixing block 4 on the sides or bottom of the drawer to achieve the pull-out action. After the strip-shaped fixing block 4 is installed on both sides of the drawer, it will... One end of the mounting slot 5 slides into the strip-shaped fixing slider 2, allowing the strip-shaped fixing block 4 to slide to the end of the strip-shaped fixing slider 2. The mounting slot 5 on the strip-shaped fixing block 4 then slides from the side of the strip-shaped fixing slider 2 into the inside of the hook 3 for locking and fixing. This allows the drawer to be locked and fixed to the strip-shaped fixing slider 2 by sliding the strip-shaped fixing block 4 into the strip-shaped fixing slider 2. The bottom rail connector 7 is located at one end of the drawer pull plate, so that the clearance height of the slide can be adjusted by the clearance compensation component 13. Furthermore, the drawer and the guide rail can be disassembled and separated with one click using the handle 12.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. A concealed drawer slide, characterized in that, include: A fixed guide rail (1) is provided on one side of the fixed guide rail (1) with damping sliding to allow the drawer to be pulled out. The end of the fixed guide rail (2) is connected to a strip-shaped fixing block (4) for fixing the drawer by a hook (3). One end of the strip-shaped fixing block (4) is provided with an installation slot (5) that is adapted to the hook (3) for locking and fixing. One end of the other side of the fixed guide rail (2) is connected to a pull-out positioning pin (6) with an L-shaped structure for locking and positioning the pull-out of the fixed guide rail (2). One end of the fixed guide rail (2) is connected to a bottom rail connector (7) for one-click derailment and gap height adjustment of the drawer.

2. The drawer concealed guide rail according to claim 1, characterized in that: The strip-shaped fixing block (4) is a frame-type structure with an opening on one side, and the outer surface of the strip-shaped fixing block (4) is provided with mounting holes for fixing the drawer.

3. The drawer concealed guide rail according to claim 1, characterized in that: The strip-shaped fixing block (4) slides onto the outer surface of the strip-shaped fixing slider (2), and the mounting slot (5) slides into the hook (3) with an outward convex structure at one end of the front side of the strip-shaped fixing slider (2).

4. A drawer-concealed guide rail according to claim 1, characterized in that: The fixed guide rail (1) is adapted to slide with the strip-shaped fixed slider (2) and has a protruding positioning slider (8) with a strip structure.

5. A drawer-concealed guide rail according to claim 4, characterized in that: The surface of one side of the strip-shaped fixed slider (2) is recessed with a guide strip groove (9) to guide the strip-shaped fixed slider (2) to slide in a straight line.

6. A drawer-concealed guide rail according to claim 1, characterized in that: The strip-shaped fixed slider (2) has a pin opening (10) on the front side, and one end of the pull-out positioning pin (6) is inserted into the pin opening (10) for positioning, and one end of the pull-out positioning pin (6) extends downward.

7. A drawer-concealed guide rail according to claim 4, characterized in that: The positioning slide (8) has a sliding hole (11) evenly provided on one side of the corresponding strip fixed slider (2), and the strip fixed slider (2) is inserted into the sliding hole (11) through a pull-out positioning pin (6) at one end to slide and position the drawer.

8. A drawer-concealed guide rail according to claim 1, characterized in that: The bottom rail connector (7) has a handle (12) integrally formed on one side via a torsion spring, and the bottom rail connector (7) is provided with a gap compensation part (13) for adjusting the drawer.

9. A drawer-concealed guide rail according to claim 1, characterized in that: The fixed guide rail (1) has mounting holes (14) evenly distributed on one side to fix the fixed guide rail (1) to both sides of the drawer mounting cavity of the cabinet.

Images