A three-section heightened drawer slide
By adding a heightening module and designing a combined sliding structure at the bottom of the drawer slide, the problem of the drawer slide being stuck due to insufficient height is solved, and noise is reduced, improving the reliability and quietness of the drawer slide.
Patent Information
- Application Number
- CN202421330800.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-12
AI Technical Summary
Existing drawer slides are prone to jam when encountering the raised edges of the cabinet or drawer and cause high noise due to frictional sliding.
A three-stage lifting drawer slide rail is designed. By adding a heightening module to the bottom of the slide rail, the distance between the bottom of the drawer and the support surface of the cabinet is increased to avoid jamming problems. Through the combined structure of fixed rail, connecting rail and moving rail, sliding connection is achieved using rolling balls and limit snaps to reduce friction noise.
It effectively avoids the problem of drawers being stuck due to insufficient slide height. By improving the sliding method, the noise during the drawer is significantly reduced and the user experience is improved.
Smart Images
Figure CN222707843U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of furniture hardware accessories, in particular to a three-section heightened drawer slide rail. Background Art
[0002] A drawer is a movable box used to store items in furniture such as tables and cabinets. It has a bottom but no cover and can be pushed and pulled freely. However, in order to ensure the normal pushing and pulling of the drawer, a slide rail needs to be installed on the cabinet body. The drawer has a guide bar that cooperates with the slide rail, and the guide bar is embedded in the slide rail. Such a structure can make the drawer stable. Drawer slides are generally divided into two types: open-mounted and hidden. Among them, hidden drawer slides are widely used in closed objects such as furniture drawers and refrigerator drawers, and hidden slides are mainly in two forms: two-stage and three-stage.
[0003] However, some cabinets or drawers currently have a raised edge, and the current common slide rail structures are mostly relatively flat and low in height. When pulling out the drawer, it will cause the drawer to get stuck and cannot be pulled out. In addition, the slide rail and the drawer use a friction sliding connection. This method will produce a certain amount of noise due to friction when pulling. Utility Model Content
[0004] The purpose of the utility model is to provide a three-section heightened drawer slide rail to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-section heightened drawer slide rail, comprising: a slide rail; a cabinet body, a fixed rail fixed to both sides of the bottom of the cabinet body by a screw assembly and a sliding member arranged inside the fixed rail; a connecting rail slidably connected to both sides of the fixed rail and having a connecting assembly installed inside; a movable rail slidably connected to the connecting assembly and installed inside the connecting rail, and a heightening module fixedly connected to the movable rail, wherein the connecting assembly also includes a connecting piece with two sides recessed downward or a middle protruding upward to form two parallel first guide grooves and guide side walls; rolling balls evenly arranged in an array on the guide side walls on both sides and a limiting buckle located in the middle of the connecting piece.
[0006] Preferably, the slide rail also includes a first connecting surface arranged on the fixed rail; a second connecting surface arranged on the connecting rail and a third connecting surface located on the movable rail, and at least one or more dimensions of the first connecting surface, the second connecting surface and the third connecting surface decrease in sequence.
[0007] Preferably, the fixed rail includes first sliding grooves arranged on both sides of the first connecting surface and baffles located on both sides of the front end of the fixed rail.
[0008] Preferably, the connecting rail includes a second slide groove arranged on the outer surface corresponding to the position of the first slide groove and suitable for the sliding member to perform reciprocating motion; a second guide groove arranged on both sides of the second connecting surface and suitable for the connecting piece to perform reciprocating motion; a third slide groove corresponding to the position of the rolling ball on the guide side wall and suitable for the rolling ball to perform reciprocating motion, and limit members arranged on both sides of the front end of the connecting rail, limit blocks on both sides of the rear end, and limit plates on both sides of the end.
[0009] Preferably, the movable rail includes fourth sliding grooves which are arranged on both sides of the third connecting surface and correspond to the positions of the third sliding grooves and are suitable for the rolling ball to perform reciprocating motion.
[0010] Preferably, the sliding member includes a sliding rod and rolling balls evenly distributed and rotatably connected to the front and rear ends of the sliding rod.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. The drawer slide of the utility model increases the distance between the bottom of the drawer and the internal support surface of the table or cabinet by adding a height-increasing module at the bottom of the slide, which can effectively avoid the problem that the drawer is stuck and cannot be pulled out because some cabinets or drawers currently have a raised edge and most of the current common slide rail structures are relatively flat and low in height.
[0013] 2. The drawer slide of the utility model improves the original joint friction sliding mode by providing a connecting component and a sliding member, and the fixed rail, the connecting rail and the movable rail which constitute the slide rail slide and are pulled along the slide groove by the balls on the connecting component and the sliding member, thereby avoiding the loud noise caused by friction and being quieter. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the slide rail structure of the utility model;
[0016] Figure 3 This is a schematic diagram of the slide rail structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the slide rail explosion structure of the utility model;
[0018] Figure 5 This is a schematic diagram of the fixed rail structure of the utility model;
[0019] Figure 6 This is a schematic diagram of the connecting rail structure of the utility model;
[0020] Figure 7This is a schematic diagram of the movable rail structure of the utility model;
[0021] Figure 8 It is a schematic diagram of the connecting assembly and sliding member structure of the utility model.
[0022] Markings in the figure: 1. slide rail; 2. cabinet; 3. fixed rail; 310. first connecting surface; 320. first slide groove; 330. baffle; 4. connecting assembly; 410. connecting plate; 411. first guide groove; 412. guide side wall; 413. rolling ball; 420. limiting buckle; 5. connecting rail; 510. second connecting surface; 520. second slide groove; 530. second guide groove; 540. third slide groove; 550. limiting member; 560. limiting block; 570. limiting plate; 6. movable rail; 610. third connecting surface; 620. fourth slide groove; 7. height increasing module; 8. sliding member; 810. sliding rod. DETAILED DESCRIPTION
[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0024] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the utility model belongs. The words "first", "second" and similar words used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] See also Figure 1-8The utility model provides a technical solution: a three-section heightened drawer slide rail, comprising: a slide rail 1; a cabinet 2, a fixed rail 3 fixed to both sides of the bottom of the cabinet through a screw assembly; a connecting rail 5 slidably connected to both sides of the fixed rail 3 and equipped with a connecting assembly 4; a movable rail 6 slidably connected to the connecting assembly 4 and installed inside the connecting rail 5, and a heightening module 7 fixedly connected to the movable rail 6; wherein the connecting assembly 4 also includes a connecting piece 410 with two sides concave downward or a middle part convex upward to form two parallel first guide grooves 411 and a guide side wall 412; rolling balls 413 uniformly arranged in an array on the guide side walls 412 on both sides and a limit buckle 420 located in the middle of the connecting piece 410.
[0026] In the present embodiment, the slide rail 1 further comprises a first connecting surface 310 arranged on the fixed rail 3; a second connecting surface 510 arranged on the connecting rail 5 and a third connecting surface 610 located on the movable rail 6, and at least one or more dimensions of the first connecting surface 301, the second connecting surface 510 and the third connecting surface 610 decrease in sequence. The fixed rail 3 further comprises a first slide groove 320 arranged on both sides of the first connecting surface 310 and a baffle 330 located on both sides of the front end of the fixed rail 3, and the connecting rail 5 is installed in the first connecting surface 310 of the fixed rail 3 and has a second slide groove 520 on its outer surface corresponding to the position of the first slide groove 320 and suitable for the reciprocating motion of the sliding member 8, and the sliding member 8 is arranged between the first slide groove 320 and the second slide groove 520, and the first connecting surface 310 of the fixed rail 3 and the outer surface of the connecting rail 5 are slidably connected in the horizontal direction through the sliding member 8, and at the same time, by setting the limit buckle 420, when disassembly is required, the drawer can be removed by lightly pressing down with a finger without tools, which is convenient for track maintenance.
[0027] In this embodiment, the connecting rail 5 includes a second guide groove 530 arranged on both sides of the second connecting surface 510 and suitable for the connecting piece 410 to reciprocate; a third slide groove 540 corresponding to the position of the ball 413 on the guide side wall 412 and suitable for the ball 413 to reciprocate, and a limiting member 550 arranged on both sides of the front end of the connecting rail 5, a limiting block 560 on both sides of the rear end, and a limiting piece 570 on both sides of the end, wherein the first guide groove 411 located on both sides of the connecting piece 410 is in contact with the second guide groove 530 on both sides of the second connecting surface 510 in the connecting rail 5, and one side of the ball 413 arranged on the guide side walls 412 on both sides is slidably connected to the third slide groove 540, and the other side is connected to the third connecting surface on the movable rail 6. The fourth slide grooves 620 corresponding to the positions of the third slide grooves 540 on both sides of 610 are slidably connected, and the second connecting surface 510 of the connecting rail 5 and the third connecting surface 610 of the movable rail 6 are slidably connected in the horizontal direction through the connecting piece 410. When in use, the movable rail 6 is slid into the connecting rail 5 along the guide groove until it hits the limit blocks 560 set on both sides of the rear end of the connecting rail 5. The limit members 550 on both sides of the front end of the connecting rail 5 and the limit blocks 560 on both sides of the rear end are used to prevent the connecting piece 410 from accidentally detaching and control the telescopic distance of the movable rail 6. At the same time, the limit members 410 set on both sides of the end of the connecting rail 5 and the baffles 330 located on both sides of the front end of the fixed rail 3 can prevent the sliding member 8 from being accidentally pulled out and control the telescopic distance of the connecting rail 5.
[0028] In this embodiment, the sliding member 8 is composed of a sliding rod 810 and rolling balls 413 that are evenly distributed and rotatably connected to the front and rear ends of the sliding rod 810. When in use, firstly, the back side of the fixed rail 3 is respectively fixed to the two sides of the bottom of the cabinet 2 through the screw assembly, and the sliding member 8 is respectively attached and installed in the first slide groove 320 of the first connecting surface 310 on the fixed rail 3. Then, the connecting rail 5 is installed in the first connecting surface 310 of the fixed rail 3 so that the first slide groove 320 corresponds to the second slide groove 520 and the sliding member 8 is located between the first connecting surface 310 of the fixed rail 3 and the outer surface of the connecting rail 5. The rolling balls 413 are located between the first slide groove 320 and the second slide groove 520. Then, the connecting piece 410 is installed on the connecting rail The first guide groove 411 of the connecting piece 410 is fitted into the second guide groove 530 in the second connecting surface 520, and one side of the rolling ball 413 in the guiding side walls 412 on both sides of the connecting piece 410 is slidably connected to the third sliding groove 540. Then, the movable rail 6 is installed and the movable rail 6 is slid into the guiding groove so that the third sliding groove 540 corresponds to the fourth sliding groove 620, and the guiding side walls 412 are located between the second connecting surface 510 of the connecting rail 5 and the third connecting surface 610 of the movable rail 6, and the rolling ball 413 is located between the third sliding groove 540 and the fourth sliding groove 620 of the movable rail 6. Then, one side of the height increasing module 7 is fixedly connected to the third connecting surface 610 of the movable rail 6 by a screw assembly, and the other side is fixedly connected to the inside of furniture such as a table or a cabinet.
[0029] As a further explanation, in the present embodiment, the material of the height increasing module 7 is preferably one of the materials of equal size such as cold rolled steel, high-density EVA cotton, wood strips or EVA plastic that can equally increase the guide rail height. The fixed rail 3 and the cabinet body 2, the movable rail 6 and the height increasing module 7, and the height increasing module 7 and the table, cabinet, etc. are fixedly connected by screws or bolt assemblies, while in some other embodiments, the fixed rail 3 and the cabinet body 2, the movable rail 6 and the height increasing module 7, and the height increasing module 7 and the table, cabinet, etc. can be fixedly connected by gluing such as double-sided tape or adhesive.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A three-section heightened drawer slide, characterized in that: include: Slide rails; A cabinet body, fixed rails fixed to both sides of the bottom of the cabinet body through screw assemblies and sliding members arranged inside the fixed rails; connecting rails slidably connected to both sides of the fixed rails and equipped with connecting assemblies inside; movable rails slidably connected to the connecting assemblies and installed inside the connecting rails and height-increasing modules fixedly connected to the movable rails, wherein the connecting assemblies also include connecting pieces with two sides concave downward or the middle convex upward to form two parallel first guide grooves and guide side walls; rolling balls evenly arrayed on the guide side walls on both sides and a limiting buckle located in the middle of the connecting piece.
2. The three-section heightened drawer slide rail according to claim 1, characterized in that: The slide rail also includes a first connecting surface arranged on the fixed rail; a second connecting surface arranged on the connecting rail and a third connecting surface located on the movable rail, and at least one or more dimensions of the first connecting surface, the second connecting surface and the third connecting surface decrease in sequence.
3. The three-section heightened drawer slide rail according to claim 2, characterized in that: The fixed rail comprises first sliding grooves arranged on both sides of the first connecting surface and baffles located on both sides of the front end of the fixed rail.
4. The three-section heightened drawer slide rail according to claim 3, characterized in that: The connecting rail includes a second slide groove arranged on the outer surface corresponding to the position of the first slide groove and suitable for the sliding member to perform reciprocating motion; a second guide groove arranged on both sides of the second connecting surface and suitable for the connecting piece to perform reciprocating motion; a third slide groove corresponding to the position of the rolling ball on the guide side wall and suitable for the rolling ball to perform reciprocating motion, and limiting members arranged on both sides of the front end of the connecting rail, limiting blocks on both sides of the rear end, and limiting plates on both sides of the end.
5. The three-section heightened drawer slide rail according to claim 4, characterized in that: The movable rail includes fourth sliding grooves which are arranged on both sides of the third connecting surface and correspond to the positions of the third sliding grooves and are suitable for the rolling ball to perform reciprocating motion.
6. The three-section heightened drawer slide rail according to claim 1, characterized in that: The sliding member comprises a sliding rod and rolling balls which are evenly distributed and rotatably connected to the front and rear ends of the sliding rod.