A drawer slide

Abstract

The utility model discloses a drawer slide rail, including fixed rail and movable rail, fixed rail and movable rail movable cooperation is equipped with the ball assembly between fixed rail and movable rail, and is equipped with first accommodating site, second accommodating site, third accommodating site and fourth accommodating site between fixed rail with movable rail, and ball assembly is equipped with first ball, second ball, third ball and fourth ball, and first ball, second ball, third ball and fourth ball are located in first accommodating site, second accommodating site, third accommodating site and fourth accommodating site respectively. The utility model discloses the advantage of drawer slide rail: adopted cross -shaped cooperation and four -sided ball cooperation's structure, make fixed rail and movable rail between cooperation more stable and reliable, make movable rail's gravity center and fixed rail's support vertical board's center very close coincidence, therefore, in the use process, the operation of slide rail is more stable and smooth, and the slide rail is not easy to bend deformation, improves the bending capacity and the bearing capacity of slide rail.

Description

Technical Field

[0001] This utility model belongs to the field of furniture technology, and relates to a furniture accessory, particularly a drawer slide for furniture. Background Technology

[0002] Drawer slides are crucial components in furniture, used for installing drawers and facilitating their movement. Currently, existing drawer slides, such as the Chinese utility model patent application number 2020209950316 entitled "A Versatile Drawer Slide," have significant shortcomings. The guide components on the fixed rail of this existing drawer slide consist of vertical and horizontal guide plates, but the center of gravity of the movable rail does not coincide with the center of the vertical guide plate (used to support the movable rail) of the fixed rail. This misalignment causes uneven stress on the vertical guide plate when bearing the weight of the drawer and external forces during use, making it prone to bending and deformation. This results in poor bending resistance and an inability to meet users' requirements for high-load-bearing furniture hardware, significantly impacting the lifespan of the drawer slide. Therefore, a drawer slide that overcomes these defects is urgently needed. Utility Model Content

[0003] The purpose of this invention is to provide a drawer slide to solve the problems of poor bending resistance and load-bearing capacity of existing drawer slides.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a drawer slide rail, including a fixed rail and a movable rail, wherein the fixed rail and the movable rail are movably engaged, a ball bearing assembly is provided between the fixed rail and the movable rail, and a first receiving position, a second receiving position, a third receiving position and a fourth receiving position are provided between the fixed rail and the movable rail, wherein the ball bearing assembly is provided with a first ball, a second ball, a third ball and a fourth ball, and the first ball, the second ball, the third ball and the fourth ball are respectively located in the first receiving position, the second receiving position, the third receiving position and the fourth receiving position.

[0005] Furthermore, the movable rail is provided with a first guide groove, and the fixed rail is provided with a guide portion. The guide portion cooperates with the first guide groove, and the movable rail can slide along the guide portion. The guide portion is provided with a first arc-shaped portion, a second arc-shaped portion, a third arc-shaped portion, and a fourth arc-shaped portion in sequence. The first arc-shaped portion, the second arc-shaped portion, the third arc-shaped portion, and the fourth arc-shaped portion respectively form the first receiving position, the second receiving position, the third receiving position, and the fourth receiving position with the movable rail.

[0006] Furthermore, the guide portion is shaped like a cross, with one end of the first arc-shaped portion connected to a supporting vertical plate, the other end of the first arc-shaped portion connected to one end of the second arc-shaped portion, the other end of the second arc-shaped portion connected to one end of the third arc-shaped portion, the other end of the third arc-shaped portion connected to one end of the fourth arc-shaped portion, and the other end of the fourth arc-shaped portion extending downward.

[0007] Furthermore, the support vertical plate is provided with an "L"-shaped mounting plate.

[0008] Furthermore, the mounting plate is provided with mounting holes, and a number of reinforcing ribs are provided at the corners of the mounting plate, and these reinforcing ribs are evenly distributed along the length of the mounting plate.

[0009] Furthermore, the number of reinforcing ribs is seven.

[0010] Furthermore, the ball assembly includes a ball frame with a second guide groove that engages with the guide portion of the fixed rail. The ball frame is located between the fixed rail and the movable rail. The ball frame has a first slot, a second slot, a third slot, and a fourth slot arranged sequentially. The first slot, the second slot, the third slot, and the fourth slot are connected in the thickness direction of the ball frame. The first ball, the second ball, the third ball, and the fourth ball are installed in the first slot, the second slot, the third slot, and the fourth slot.

[0011] Furthermore, the drawer slide rail also includes a damper, which is mounted on the fixed rail and the output end of the damper is connected to the movable rail.

[0012] Furthermore, the buffer includes a body, on which a first locking block and a second locking block are provided. The first locking block is L-shaped and includes a vertical plate and a locking plate. One end of the vertical plate is fixed to the body, and the other end of the vertical plate is connected to the locking plate. The second locking block is L-shaped and has a hook plate. The mounting plate has a first slot and a second slot, both of which are through the thickness direction of the mounting plate. One side of the first slot has a slot. When the buffer is installed on the fixed rail, the vertical plate cooperates with the slot, and the hook plate of the second locking block hooks onto the fixed rail.

[0013] Furthermore, the upright plate and the slot are interference-fitted.

[0014] The beneficial effects of this utility model are as follows: Compared with existing drawer slides, this utility model has significant advantages and beneficial effects. Due to the adoption of a cross-shaped fit and four-sided ball bearing fit structure, the cooperation between the fixed and movable slides is more stable and reliable. This ensures that the center of gravity of the movable slide is very close to the center of the support plate of the fixed slide. Therefore, during use, the slide runs more stably and smoothly, making the drawer push and pull more stable and smooth. The slide is also less prone to bending and deformation, greatly improving its bending resistance. At the same time, the even force distribution also enhances the load-bearing capacity of the slide, meeting the needs of users to place more and heavier items, extending the service life of the drawer slides, and providing users with a higher quality and more stable user experience. Attached Figure Description

[0015] Figure 1 This is a first perspective view of the drawer slide rail of Embodiment 1 of this utility model.

[0016] Figure 2 This is a second perspective view of the drawer slide of Embodiment 1 of this utility model.

[0017] Figure 3 This is a front view of the drawer slide of Embodiment 1 of this utility model.

[0018] Figure 4 yes Figure 3 A bottom view.

[0019] Figure 5 This is a perspective view of the fixed rail of Embodiment 1 of this utility model.

[0020] Figure 6 This is a front view of the fixed rail of Embodiment 1 of this utility model.

[0021] Figure 7 yes Figure 6 A bottom view.

[0022] Figure 8 This is a perspective view of the movable track in Embodiment 1 of this utility model.

[0023] Figure 9 This is a perspective view of the ball bearing assembly of Embodiment 1 of this utility model.

[0024] Figure 10 This is a perspective view of the bead frame of Embodiment 1 of this utility model.

[0025] Figure 11 This is a first perspective view of the buffer in Embodiment 1.

[0026] Figure 12 This is a second perspective view of the buffer in Embodiment 1.

[0027] Figure 13This is a perspective view of the drawer slide of Embodiment 2.

[0028] Figure 14 This is a perspective view of the buffer in Embodiment 2.

[0029] Explanation of reference numerals in the attached figures:

[0030] Fixed rail 1, movable rail 2, ball bearing assembly 3, buffer 4;

[0031] Guide section 11, support vertical plate 12, mounting plate 13;

[0032] First arc-shaped portion 111, second arc-shaped portion 112, third arc-shaped portion 113, fourth arc-shaped portion 114;

[0033] Mounting hole 131, reinforcing rib 132, first slot 133, second slot 134;

[0034] Card slot 1331;

[0035] First guide groove 21, retaining edge 22, inserting edge 23;

[0036] 31. Bead cage; 32. First ball bearing; 33. Second ball bearing; 34. Third ball bearing; 35. Fourth ball bearing;

[0037] Second guide groove 311, first groove 312, second groove 313, third groove 314, fourth groove 315;

[0038] Body 41, buffer cylinder 42, connecting slider 43;

[0039] First card block 411, second card block 412;

[0040] Stand plate 4111, pallet plate 4112;

[0041] Hook plate 4121;

[0042] Connecting shaft 421, sliding plate 422;

[0043] Adhesive block 431. Detailed Implementation

[0044] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0045] Example 1:

[0046] like Figures 1-4As shown, the drawer slide of this embodiment includes a fixed rail 1 and a movable rail 2. The fixed rail 1 and the movable rail 2 are movably engaged, and a ball bearing assembly 3 is provided between the fixed rail 1 and the movable rail 2.

[0047] Reference Figures 5-7 The fixed rail 1 is machined with a guide portion 11, which is shaped like a cross. The guide portion 11 is sequentially machined with a first arc-shaped portion 111, a second arc-shaped portion 112, a third arc-shaped portion 113, and a fourth arc-shaped portion 114. One end of the first arc-shaped portion 111 is connected to a supporting vertical plate 12. The other end of the first arc-shaped portion 111 is connected to one end of the second arc-shaped portion 112. The other end of the second arc-shaped portion 112 is connected to one end of the third arc-shaped portion 113. The other end of the third arc-shaped portion 113 is connected to one end of the fourth arc-shaped portion 114. The other end of the fourth arc-shaped portion 114 extends downward and extends to the upper middle part of the supporting vertical plate 12. In a preferred design, an L-shaped mounting plate 13 is machined on the lower side of the supporting vertical plate 12. Multiple mounting holes 131 are machined on the mounting plate 13, and seven reinforcing ribs 132 are machined at the corners of the mounting plate 13. These reinforcing ribs 132 are evenly distributed along the length of the mounting plate 13.

[0048] Reference Figure 8 The movable rail 2 is machined with a first guide groove 21, which runs through the length of the movable rail 2. The guide portion 11 of the fixed rail 1 cooperates with the first guide groove 21 of the movable rail 2, and the movable rail 2 can slide along the guide portion 11. The first arc-shaped portion 111, the second arc-shaped portion 112, the third arc-shaped portion 113, and the fourth arc-shaped portion 114 respectively form a first receiving position, a second receiving position, a third receiving position, and a fourth receiving position with the movable rail.

[0049] Reference Figure 9 The ball assembly 3 includes a ball cage 31, as shown in the reference. Figure 10 The bead frame 31 is machined with a second guide groove 311, which runs through the length of the bead frame 31. The second guide groove 311 cooperates with the guide part 11 of the fixed rail 1. The bead frame 31 is located between the fixed rail 1 and the movable rail 2. The ball frame 31 is sequentially machined with a first groove 312, a second groove 313, a third groove 314, and a fourth groove 315. The first groove 312, the second groove 313, the third groove 314, and the fourth groove 315 are through in the thickness direction of the ball frame 31. The first ball 32, the second ball 33, the third ball 34, and the fourth ball 35 are installed in the first groove 312, the second groove 313, the third groove 314, and the fourth groove 315. When the ball assembly 3 is installed between the fixed rail 1 and the movable rail 2, the first ball 32, the second ball 33, the third ball 34, and the fourth ball 35 are respectively located in the first receiving position, the second receiving position, the third receiving position, and the fourth receiving position.

[0050] The drawer slide also includes a damper 4, which is a single-connection damper. The damper 4 is mounted on the mounting plate 13 of the fixed slide 1, and its output end is connected to the movable slide 2. (Refer to...) Figure 11 and Figure 12 The buffer 4 includes a body 41, on which a buffer cylinder 42 is mounted. One end of the piston rod of the buffer cylinder 42 is fixed to a connecting shaft 421. A connecting slider 43 is mounted on the body 41, and a fitting hole is machined on the connecting slider 43, which is clearance-fitted with the connecting shaft 421. A first locking block 411 and a second locking block 412 are machined on the body 41. The first locking block 411 is L-shaped and includes a vertical plate 4111 and a locking plate 4112. One end of the vertical plate 4111 is fixed to the body 41, and the other end is connected to the locking plate 4112. The second locking block 412 is L-shaped and has a hook plate 4121 machined on it. (See reference...) Figure 6 The mounting plate 13 has a first slot 133 and a second slot 134 machined on it. Both the first slot 133 and the second slot 134 are through the thickness direction of the mounting plate 13. A slot 1331 is machined on one side of the first slot 133. When the buffer 4 is installed on the mounting plate 13 of the fixed rail 1, the upright plate 4111 is interference-fitted with the slot 1331, and the hook plate 4121 of the second locking block 412 hooks the mounting plate 13 of the fixed rail 1, thereby realizing the quick installation of the buffer 4.

[0051] Reference Figure 8 The movable rail 2 has a retaining edge 22, which is connected to the connecting slider 43 of the buffer 4. One end of the movable rail 2 also has an insert edge 23.

[0052] Example 2:

[0053] The difference between the drawer slide in this embodiment and the drawer slide in embodiment 1 is that the buffer 4 in this embodiment is a double-connected buffer. (Refer to...) Figure 14 One end of the piston rod of the buffer cylinder 42 of the buffer 4 is connected to a sliding plate 422, which can slide on the body 41. A connecting shaft 421 is machined on the sliding plate 422, and the fitting hole of the connecting slider 43 is clearance-fitted with the connecting shaft 421. A fitting block 431 is also machined on the connecting slider 43. The structure of the drawer slide rail in this embodiment is as follows. Figure 13 As shown. The drawer slides using the dual-connection buffer of this embodiment make the drawer slides smoother and quieter.

[0054] Compared with existing technologies, the advantages of the drawer slides of this invention are:

[0055] 1. The structure of the fixed rail has been optimized. The fixed rail features a cross-shaped guide that mates with the movable rail, ensuring precise positioning and stable connection in both horizontal and vertical directions. This design achieves near-coincidence between the center of gravity of the movable rail and the center of the support plate of the fixed rail, effectively solving the problem of easy bending and deformation of the support plate in existing slide rails and greatly enhancing the bending resistance of the slide rail. In actual use, it can withstand heavier drawer loads and is less prone to deformation and damage even after long-term use, thus improving the product's lifespan and reliability.

[0056] 2. A four-sided ball bearing system is used between the mating surfaces of the fixed and sliding rails. These balls are evenly distributed between the rails and the sliding components, creating rolling friction. This significantly reduces friction during use, making drawers smoother and easier to open and close, thus improving the user experience. Simultaneously, this design reduces wear between components, further extending the lifespan of the drawer rails. Furthermore, this design makes the fit between the fixed and sliding rails more reliable and stable, improving the overall robustness of the connection.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drawer slide, comprising a fixed rail (1) and a movable rail (2), wherein the fixed rail (1) and the movable rail (2) are movably engaged, and a ball bearing assembly (3) is provided between the fixed rail (1) and the movable rail (2), characterized in that: The fixed rail (1) and the movable rail (2) are provided with a first receiving position, a second receiving position, a third receiving position and a fourth receiving position. The ball assembly (3) is provided with a first ball (32), a second ball (33), a third ball (34) and a fourth ball (35). The first ball (32), the second ball (33), the third ball (34) and the fourth ball are respectively located in the first receiving position, the second receiving position, the third receiving position and the fourth receiving position.

2. A drawer slide according to claim 1, characterized in that, The movable rail (2) is provided with a first guide groove (21), and the fixed rail (1) is provided with a guide part (11). The guide part (11) cooperates with the first guide groove (21), and the movable rail (2) can slide along the guide part (11). The guide part (11) is provided with a first arc-shaped part (111), a second arc-shaped part (112), a third arc-shaped part (113), and a fourth arc-shaped part (114) in sequence. The first arc-shaped part (111), the second arc-shaped part (112), the third arc-shaped part (113), and the fourth arc-shaped part (114) respectively form the first receiving position, the second receiving position, the third receiving position, and the fourth receiving position with the movable rail.

3. A drawer slide according to claim 2, characterized in that, The guide part (11) is shaped like a cross. One end of the first arc-shaped part (111) is connected to a supporting vertical plate (12). The other end of the first arc-shaped part (111) is connected to one end of the second arc-shaped part (112). The other end of the second arc-shaped part (112) is connected to one end of the third arc-shaped part (113). The other end of the third arc-shaped part (113) is connected to one end of the fourth arc-shaped part (114). The other end of the fourth arc-shaped part (114) extends downward.

4. A drawer slide according to claim 3, characterized in that, The supporting vertical plate (12) is provided with an L-shaped mounting plate (13).

5. A drawer slide according to claim 4, characterized in that, The mounting plate (13) is provided with mounting holes (131), and a number of reinforcing ribs (132) are provided at the corners of the mounting plate (13). These reinforcing ribs (132) are evenly distributed along the length of the mounting plate (13).

6. A drawer slide according to claim 5, characterized in that, The number of the reinforcing ribs (132) is seven.

7. A drawer slide according to claim 2, characterized in that, The ball assembly (3) includes a ball frame (31), on which a second guide groove (311) is provided. The second guide groove (311) cooperates with the guide part (11) of the fixed rail (1). The ball frame (31) is located between the fixed rail (1) and the movable rail (2). The ball frame (31) is provided with a first slot (312), a second slot (313), a third slot (314) and a fourth slot (315) in sequence. The first slot (312), the second slot (313), the third slot (314) and the fourth slot (315) are connected in the thickness direction of the ball frame (31). The first ball (32), the second ball (33), the third ball (34) and the fourth ball are installed in the first slot (312), the second slot (313), the third slot (314) and the fourth slot (315).

8. A drawer slide according to claim 4, characterized in that, The drawer slide also includes a buffer (4), which is installed on the fixed rail (1) and the output end of the buffer (4) is connected to the movable rail (2).

9. A drawer slide according to claim 8, characterized in that, The buffer (4) includes a body (41), on which a first locking block (411) and a second locking block (412) are provided. The first locking block (411) is L-shaped and includes a vertical plate (4111) and a locking plate (4112). One end of the vertical plate (4111) is fixed to the body (41), and the other end of the vertical plate (4111) is connected to the locking plate (4112). The second locking block (412) is L-shaped. A hook plate (4121) is provided. The mounting plate (13) is provided with a first slot (133) and a second slot (134). The first slot (133) and the second slot (134) are both through the thickness direction of the mounting plate (13). A slot (1331) is provided on one side of the first slot (133). When the buffer (4) is installed on the fixed rail (1), the upright plate (4111) cooperates with the slot (1331). The hook plate (4121) of the second block (412) hooks the fixed rail (1).

10. A drawer slide according to claim 9, characterized in that, The upright plate (4111) and the slot (1331) are interference fit.

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