Sliding rail for furniture drawer

Abstract

The utility model discloses a sliding rail for a furniture drawer. The sliding rail comprises a guide rail, a sliding assembly and a damper. The guide rail comprises a profile body and an optical axis, the damper is arranged in the containing cavity, and the damper comprises a damper body, a sliding plate and a damping oil cylinder; one end of the damping oil cylinder is connected to the sliding plate; the damper body is further provided with an elastic piece. The sliding assembly comprises a sliding block body, and a bearing sliding piece and a sliding piece are arranged on the sliding block body. The sliding block body is connected to the profile body in a sliding mode through sliding fit between the bearing sliding piece and the optical shaft, so that the sliding piece is selectively connected to the sliding plate. Thus, due to the built-in design of the damper, the size of the sliding rail is reduced, other spaces do not need to be reserved for the sliding rail during actual installation and application, the outer wall of the optical axis is smooth, friction resistance is small, and the bearing sliding piece slides along the optical axis and runs stably.

Description

Technical Field

[0001] This utility model relates to the field of drawer slides, and in particular to a drawer slide for furniture. Background Technology

[0002] A drawer is a box-like structure in furniture such as a table or cabinet, used for storing items. It has a bottom but no lid and can be pulled out and pushed in. To improve the smoothness of drawer operation, drawer slides are usually installed on cabinets and other furniture. The sides of the drawer are connected to the slides, allowing the drawer to be pulled out smoothly.

[0003] The prior art discloses a drawer with a damper, including a damper and a slide rail assembly connected to the drawer body. The slide rail assembly includes a fixed slide rail connected to the inner wall panel of the drawer and a movable slide rail connected to the drawer body. The movable slide rail is disposed on the fixed slide rail, and a connecting member is provided between the movable slide rail and the fixed slide rail. The damper includes a piston rod sleeved in a cylinder body. The damper is disposed on the drawer body, and a limiting baffle that cooperates with the damper is provided on the fixed slide rail; or the damper is disposed on the fixed slide rail, and a limiting baffle that cooperates with the damper is provided on the movable slide rail. The damper is mounted on the movable slide rail, and a limiting baffle that cooperates with the damper is mounted on the fixed slide rail. A support plate is provided on the side of the fixed slide rail, and the damper is mounted on the support plate via a mounting bracket. The piston rod is connected to the mounting bracket. A lug-shaped limiting baffle is located on the side of the movable slide rail, corresponding to the tail end of the damper's cylinder. By using a large limiting baffle to cooperate with a large damper cylinder, even slight deformation of the drawer itself or the wall on which it rests will not affect the normal use of the drawer. However, this type of drawer with a damper has the following drawbacks:

[0004] Because the damper is placed on the side of the fixed slide rail, the limit baffle needs to be reserved in advance during the actual drawer assembly process, resulting in a larger overall size and higher manufacturing cost. Secondly, the fixed slide rail and the moving slide rail are connected by sliding grooves and sliding parts, which leads to high frictional resistance, easy blockage, unstable operation and high noise after long-term use.

[0005] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a drawer slide for furniture. Through the structural design and cooperation between the guide rail, sliding component, and damper, and the built-in design of the damper, the volume of the drawer slide is reduced, eliminating the need to reserve additional space for the drawer slide during actual installation and application. Secondly, the sliding cooperation between the bearing sliding component and the optical shaft allows the sliding component to be selectively connected to the sliding plate. With the sliding cooperation between the bearing sliding component and the optical shaft, the outer wall of the optical shaft is relatively smooth, resulting in low frictional resistance, and the bearing sliding component slides along the optical shaft, ensuring smooth operation.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A drawer slide for furniture includes a guide rail, a sliding assembly, and a damper;

[0009] The guide rail includes a profile body and an optical axis. One side of the upper end face of the profile body is recessed downward to form an upward-opening receiving cavity. Optical axis grooves are symmetrically arranged on the left and right sides of the receiving cavity. Both the receiving cavity and the optical axis grooves extend along the length direction of the profile body. The optical axis is disposed in the optical axis groove.

[0010] The damper is disposed within a receiving cavity. The damper includes a damper body, a sliding plate slidably mounted on the damper body, and a damping cylinder disposed on the damper body. The sliding plate is provided with a sliding groove that extends along the length of the sliding plate. One end of the damping cylinder is connected to the sliding plate. The damper body is also provided with an elastic element, one end of which is connected to the damping cylinder, and the other end of which is connected to the sliding plate.

[0011] The sliding assembly is movably arranged along the length of the profile body. The sliding assembly includes a slider body, on which a bearing sliding member for slidingly engaging with the optical axis and a sliding member for slidingly engaging with the sliding plate are provided. The slider body is slidably connected to the profile body through the sliding engagement of the bearing sliding member with the optical axis, so that the sliding member can be selectively connected to the sliding plate.

[0012] As a preferred embodiment, at least a portion of the optical axis is exposed outside the optical axis groove; the bearing sliding member includes a plurality of bearings, a plurality of rotating shafts, and an eccentric wheel for adjusting the gap between one of the bearings and the guide rail; the bearing sliding member is slidably engaged with the optical axis through the bearings; the outer surface of the bearing has an annular contact surface, and the annular contact surface is slidably engaged with the surface of the optical axis.

[0013] As a preferred embodiment, a sliding part is provided on the outside of the damper body, and the sliding part extends along the length direction of the damper body; correspondingly, a sliding groove is provided on the sliding plate for slidingly engaging with the sliding part, and the sliding groove extends along the length direction of the sliding plate; the sliding plate is slidably connected to the damper body, and the sliding groove is slidably engaged with the sliding part.

[0014] As a preferred embodiment, the profile body is made of aluminum.

[0015] As a preferred embodiment, the damper body is further provided with a mounting position, and the damping cylinder is mounted and positioned within the mounting position.

[0016] As a preferred embodiment, the sliding plate is further provided with a movable component, at least a portion of which is exposed outside the sliding plate; the sliding component is provided with an arc-shaped groove, and a guide slope is provided at the opening of the arc-shaped groove; when the sliding component is slidably connected to the sliding plate, at least a portion of the movable component slides into the arc-shaped groove via the guide slope.

[0017] As a preferred embodiment, the damper body has a blocking plate extending upward from the end away from the elastic element.

[0018] As a preferred embodiment, the slider is secured to the inner end face of the slider body by a first screw.

[0019] As a preferred embodiment, the damper body is secured to the receiving cavity by a second screw.

[0020] As a preferred embodiment, the lower end face of the profile body is also provided with a plurality of connecting holes, which are arranged at intervals along the length direction of the profile body.

[0021] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves this through the structural design and cooperation between the guide rail, sliding component, and damper. One side of the upper end face of the profile body is recessed downward to form an upward-opening receiving cavity. The damper is set inside the receiving cavity. Thus, the built-in design of the damper reduces the volume of the slide rail, eliminating the need to reserve additional space for the slide rail during actual installation and application. In actual use, pulling open the drawer only requires a little force. When the slider assembly is pulled to the side away from the receiving cavity, the elastic element and damping cylinder slow down the opening action, reducing the impact force of pulling the drawer by hand. When pushing back, only a short distance needs to be pushed back. The slider slides with the slider body, and under the restoring force of the return spring and the damping cylinder, the slider body automatically and slowly retracts. This ensures that there is no impact or impact sound when pulling open and retracting the drawer in actual use.

[0022] Secondly, the sliding engagement between the bearing sliding component and the optical shaft allows the sliding component to be selectively connected to the sliding plate. With the sliding engagement between the bearing sliding component and the optical shaft, the outer wall of the optical shaft is relatively smooth, the frictional resistance is small, and the bearing sliding component slides along the optical shaft, resulting in smooth operation.

[0023] In addition, after prolonged use, if the optical axis and bearings wear out, the clearance accuracy can be restored by adjusting the eccentric wheel, thereby improving the stability of the movement.

[0024] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 This is a perspective view (closed state) of an embodiment of the present utility model;

[0026] Figure 2 This is another perspective view (open state) of an embodiment of the present utility model;

[0027] Figure 3 This is an exploded view of an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached diagram:

[0029] 10. Guide rail 11. Profile body

[0030] 12. Optical axis 111. Connecting hole

[0031] 112. Receiving cavity; 113. Optical axis groove

[0032] 20. Damper 21. Damper body

[0033] 22. Sliding plate 23. Damping cylinder

[0034] 24. Elastic component 25. Blocking plate

[0035] 26. Movable parts

[0036] 211. Sliding part; 212. Mounting position

[0037] 221. Sliding groove; 222. Sliding groove

[0038] 30. Sliding component; 31. Sliding block body

[0039] 32. Bearing sliding component 33. Sliding component

[0040] 321. Bearing; 322. Eccentric wheel

[0041] 323. Annular contact surface; 331. Arc-shaped groove

[0042] 332. Guide ramp. Detailed Implementation

[0043] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0044] In the description of this utility model, it should be noted that the directional terms such as "up", "down", "front", "back", "left", and "right" indicate the orientation and positional relationship based on the accompanying drawings or the orientation or positional relationship shown when wearing and using the device normally. 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. They should not be construed as limiting the specific protection scope of this utility model.

[0045] A drawer slide for furniture includes a guide rail 10, a sliding assembly 30, and a damper 20.

[0046] The guide rail 10 includes a profile body 11 and an optical axis 12. Preferably, the profile body 11 is made of aluminum. Preferably, the lower end face of the profile body 11 is also provided with a plurality of connecting holes 111, which are arranged at intervals along the length direction of the profile body 11. The design of the plurality of connecting holes 111 facilitates the subsequent installation and positioning of the guide rail 10. One side of the upper end face of the profile body 11 is recessed downward to form an upward-opening receiving cavity 112. The receiving cavity 112 and the optical axis groove 113 both extend along the length direction of the profile body 11. The optical axis 12 is disposed in the optical axis groove 113. Preferably, at least a portion of the optical axis 12 is exposed outside the optical axis groove 113.

[0047] The damper 20 is disposed in the receiving cavity 112. The damper 20 includes a damper body 21, a sliding plate 22 slidably mounted on the damper body 21, and a damping cylinder 23 disposed on the damper body 21.

[0048] The sliding plate 22 is provided with a sliding groove 221, which extends along the length of the sliding plate 22; one end of the damping cylinder 23 is connected to the sliding plate 22; the damper body 21 is also provided with an elastic element 24, one end of the elastic element 24 is connected to the damping cylinder 23, and the other end of the elastic element 24 is connected to the sliding plate 22.

[0049] Correspondingly, the sliding plate 22 is provided with a sliding groove 222 for slidingly engaging with the sliding part 211, and the sliding groove 222 extends along the length direction of the sliding plate 22;

[0050] Preferably, the sliding plate 22 is further provided with a movable member 26, at least a portion of which is exposed outside the sliding plate 22; the sliding member 33 is provided with an arc-shaped groove 331, and a guide slope 332 is provided at the opening of the arc-shaped groove 331; when the sliding member 33 is slidably connected to the sliding plate 22, at least a portion of the movable member 26 slides into the arc-shaped groove 331 via the guide slope 332.

[0051] Preferably, a sliding part 211 is provided on the outside of the damper body 21, and the sliding part 211 extends along the length direction of the damper body 21; the sliding plate 22 is slidably connected to the damper body 21, and the sliding groove 222 is slidably engaged with the sliding part 211.

[0052] Preferably, the damper body 21 is further provided with a mounting position 212, and the damping cylinder 23 is mounted and positioned within the mounting position 212. Preferably, a blocking plate 25 extends upward from the end of the damper body 21 away from the elastic member 24. Preferably, the damper body 21 is secured within the receiving cavity 112 by a second screw. In this embodiment, the working principle of the damper 20 is well known in the art and will not be described in detail here.

[0053] The sliding assembly 30 is movably arranged along the length of the profile body 11. The sliding assembly 30 includes a slider body 31, on which a bearing slider 32 for sliding engagement with the optical axis 12 and a slider 33 for sliding engagement with the sliding plate 22 are provided. The slider body 31 is slidably connected to the profile body 11 through the sliding engagement of the bearing slider 32 with the optical axis 12, so that the slider 33 can be selectively connected to the sliding plate 22. Preferably, the slider 33 is locked to the inner end face of the slider body 31 by a first screw.

[0054] The bearing sliding member 32 includes a plurality of bearings 321, a plurality of rotating shafts, and an eccentric wheel 322 for adjusting the gap between one of its bearings 321 and the guide rail 10. The bearing sliding member 32 slides with the optical axis 12 through the bearings 321. The outer surface of the bearing 321 has an annular contact surface 323, which slides with the surface of the optical axis 12.

[0055] The working process of this embodiment is described in detail below:

[0056] When the drawer slide is in use, the slider body 31 slides along the optical axis 12 under the sliding cooperation of the bearing 321 and the optical axis 12. The slider 33 slides and is pulled away from the receiving cavity 112 along with the slider body 31. The elastic element 24 is pulled open, and the damping cylinder 23 also extends out of the cylinder body, which slows down the opening action and reduces the impact force of the person pulling the drawer.

[0057] When the drawer is pushed back, the slider body 31 slides towards the side of the receiving cavity 112 under the sliding engagement of the bearing 321 and the optical shaft 12, so that the slider 33 and the sliding plate 22 are slidably connected. The arc groove 331 of the slider 33 and the moving part 26 form a restrictive engagement. The elastic part 24 retracts and plays a resetting role. The damping cylinder 23 also retracts into the cylinder body. Since the cylinder itself has the characteristic of buffering, it plays a buffering role in closing the drawer.

[0058] The key design feature of this invention lies in the structural design and coordination between the guide rail, sliding assembly, and damper. One side of the upper surface of the profile body is recessed downwards to form an upward-opening receiving cavity, within which the damper is housed. This built-in damper design reduces the size of the slide rail, eliminating the need for additional space during installation. In actual use, pulling the drawer open requires only slight force. When the slider assembly is pulled away from the receiving cavity, the elastic element and damping cylinder slow down the opening action, reducing the impact of manually pulling the drawer. When pushing it back, only a short distance is needed; the slider slides with the slider body, and under the restoring force of the return spring and the damping cylinder, the slider body automatically and slowly retracts. This ensures that opening and retracting the drawer will not result in any impact or noise during actual use.

[0059] Secondly, the sliding engagement between the bearing sliding component and the optical shaft allows the sliding component to be selectively connected to the sliding plate. With the sliding engagement between the bearing sliding component and the optical shaft, the outer wall of the optical shaft is relatively smooth, the frictional resistance is small, and the bearing sliding component slides along the optical shaft, resulting in smooth operation.

[0060] In addition, after prolonged use, if the optical axis and bearings wear out, the clearance accuracy can be restored by adjusting the eccentric wheel, thereby improving the stability of the movement.

[0061] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A drawer slide for furniture, characterized in that: It includes guide rails, sliding components, and dampers; The guide rail includes a profile body and an optical axis. One side of the upper end face of the profile body is recessed downward to form an upward-opening receiving cavity. Optical axis grooves are symmetrically arranged on the left and right sides of the receiving cavity. Both the receiving cavity and the optical axis grooves extend along the length direction of the profile body. The optical axis is disposed in the optical axis groove. The damper is disposed within a receiving cavity. The damper includes a damper body, a sliding plate slidably mounted on the damper body, and a damping cylinder disposed on the damper body. The sliding plate is provided with a sliding groove that extends along the length of the sliding plate. One end of the damping cylinder is connected to the sliding plate. The damper body is also provided with an elastic element, one end of which is connected to the damping cylinder, and the other end of which is connected to the sliding plate. The sliding assembly is movably arranged along the length of the profile body. The sliding assembly includes a slider body, on which a bearing sliding member for slidingly engaging with the optical axis and a sliding member for slidingly engaging with the sliding plate are provided. The slider body is slidably connected to the profile body through the sliding engagement of the bearing sliding member with the optical axis, so that the sliding member can be selectively connected to the sliding plate.

2. The drawer slide for furniture according to claim 1, characterized in that: At least a portion of the optical axis is exposed outside the optical axis groove; the bearing sliding member includes a plurality of bearings, a plurality of rotating shafts and an eccentric wheel for adjusting the gap between one of its bearings and the guide rail, the bearing sliding member slides with the optical axis through the bearings, the outer surface of the bearing has an annular contact surface, and the annular contact surface slides with the surface of the optical axis.

3. The drawer slide for furniture according to claim 1, characterized in that: The damper body has a sliding part on its exterior, which extends along the length of the damper body; correspondingly, the sliding plate has a sliding groove for slidingly engaging with the sliding part, which extends along the length of the sliding plate; the sliding plate is slidably connected to the damper body, and the sliding groove is slidably engaged with the sliding part.

4. The drawer slide for furniture according to claim 1, characterized in that: The profile body is made of aluminum.

5. The drawer slide for furniture according to claim 1, characterized in that: The damper body is also provided with a mounting position, and the damping cylinder is installed and positioned within the mounting position.

6. The drawer slide for furniture according to claim 3, characterized in that: The sliding plate is also provided with a movable component, at least a portion of which is exposed outside the sliding plate; the sliding component is provided with an arc-shaped groove, and a guide slope is provided at the opening of the arc-shaped groove; when the sliding component is slidably connected to the sliding plate, at least a portion of the movable component slides into the arc-shaped groove via the guide slope.

7. The drawer slide for furniture according to claim 1, characterized in that: The damper body has a blocking plate extending upwards from the end furthest from the elastic element.

8. The drawer slide for furniture according to claim 5, characterized in that: The slider is secured to the inner end face of the slider body by a first screw.

9. The drawer slide for furniture according to claim 1, characterized in that: The damper body is secured to the receiving cavity by a second screw.

10. The drawer slide for furniture according to claim 1, characterized in that: The lower end face of the profile body is also provided with a number of connecting holes, which are arranged at intervals along the length of the profile body.

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