Slide rail assembly and drawer

Abstract

The utility model belongs to the technical field of furniture, and particularly relates to a sliding rail assembly and a drawer. The sliding rail assembly comprises a positioning piece and a sliding piece connected with the positioning piece in a sliding mode. The positioning piece comprises a strip-shaped block, a strip-shaped groove, a mounting groove and a stopper. The strip-shaped groove is provided with a closed end and an inlet end; the sliding piece comprises a sliding groove connected with the strip-shaped block in a sliding mode and a pulley arranged on the groove wall of the sliding groove and connected with the groove bottom face of the strip-shaped groove in a sliding mode. Through the arrangement of the strip-shaped groove, the pulley and the stopper, the sliding piece can smoothly slide into the positioning piece and most of the sliding piece slides out of the positioning piece without obstruction, and the sliding piece can not completely slide out of the positioning piece, so that the sliding piece is prevented from being separated from the positioning piece, and the positioning piece is prevented from being damaged. The sliding part and the positioning part have the advantages of being easy and convenient to operate, safe, reliable and the like.

Description

Technical Field

[0001] This utility model belongs to the field of furniture technology, specifically relating to a slide rail assembly and a drawer. Background Technology

[0002] With increasingly sophisticated home design, drawers, as a common storage unit in furniture, are receiving more and more attention for their safety, durability, and ease of use. Especially in home environments where drawers are frequently opened and closed, carry important items, or have children present, an unlocked drawer could accidentally slide out, potentially causing damage to items, injury, or other safety hazards. Therefore, drawer locking mechanisms are of paramount importance.

[0003] The document with authorization announcement number CN222303440U discloses a locking device for drawer slides, including a first mounting plate; a second mounting plate used in pairs, the second mounting plate being disposed on the lower surface of the first mounting plate; a slide rail having a first groove, the slide rail being disposed on one side of the second mounting plate; a drawer side having a first sliding groove, the slide rail being slidably disposed within the first sliding groove, the drawer also having a second sliding groove, the second sliding groove communicating with the first sliding groove; a wedge block being slidably disposed within the second sliding groove, one end of the wedge block abutting against the slide rail, the other end of the wedge block extending out of the second sliding groove, after the drawer drives the wedge block to slide into place, one end of the wedge block abutting against the first groove.

[0004] However, the device still has the following problems: before the wedge block enters the first groove, it continues to rub against the surface of the slide rail as the drawer slides, which not only reduces the service life of the slide rail, but also increases the resistance when the drawer slides, making it less practical. Utility Model Content

[0005] To address the aforementioned problems, one objective of this utility model is to provide a slide rail assembly that, by incorporating a strip groove, pulleys, and a stopper, ensures smooth and unobstructed movement of the slider when it slides into and out of the positioning member, while also preventing the slider from completely sliding out of the positioning member. This not only avoids the slider from detaching from the positioning member but also improves the smoothness of repeated sliding between the slider and the positioning member. The assembly is characterized by its ease of operation and high reliability.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A slide rail assembly includes a positioning member and a sliding member slidably connected to the positioning member. The positioning member includes a strip block and strip grooves distributed along the length direction of the strip block on at least one side of the strip block. The strip grooves have a closed end and an inlet end.

[0008] The sliding member includes a sliding groove that is slidably connected to the strip block, and a pulley disposed on the groove wall and slidably connected to the bottom surface of the strip groove;

[0009] The positioning element further includes at least one mounting groove disposed on the bottom surface of the groove near the inlet end of the strip groove, a stopper rotatably disposed in the mounting groove, and a support spring disposed on the bottom surface of the mounting groove and connected to the stopper.

[0010] The blocker includes a rotating part near the inlet end and a blocking part near the closed end; the rotating part is provided with a rotating rod rotatably connected to the mounting groove, and a guide arc surface is formed on the surface of the rotating part away from the bottom surface of the mounting groove; a stop surface is formed on the side of the blocking part near the closed end; the stop surface is smoothly connected to the guide arc surface through a connecting surface.

[0011] The support spring acts on the blocking part, causing the blocking surface to protrude from the bottom surface of the strip groove.

[0012] As a further preferred embodiment of this utility model, the blocking part has a cut surface on one side of the bottom surface of the mounting groove; the bottom surface of the mounting groove is provided with an inclined surface opposite to the cut surface; and both ends of the support spring are connected to the cut surface and the inclined surface, respectively.

[0013] As a further preferred embodiment of the present invention, the bottom surface of the mounting groove is further provided with a protrusion located on the side end of the inclined surface near the inlet end, which is used to abut against the side of the rotating part near the mounting groove.

[0014] As a further preferred embodiment of this utility model, the strip groove is disposed on the upper surface of the strip block; and when the pulley is connected to the bottom surface of the strip groove, the distance between the lower surface of the strip block and the surface of the groove is greater than the vertical height of the stop surface.

[0015] The second objective of this utility model is to provide a drawer equipped with the above-mentioned slide rail assembly, wherein the frame is equipped with the positioning component or the sliding component, and the drawer body is equipped with the sliding component or the positioning component.

[0016] As a further preferred embodiment of this utility model, the number of drawer bodies is one; the distance between the upper surface of the drawer body and the inner top surface of the frame body is greater than or equal to the distance between the lower surface of the strip block and the surface of the slide groove.

[0017] As a further preferred embodiment of this utility model, the number of drawer bodies is two or more; the distance between the upper surface of the lower drawer body and the lower surface of the adjacent upper drawer body is greater than or equal to the distance between the lower surface of the strip block and the surface of the slide groove.

[0018] As a further preferred embodiment of this invention, it further includes a panel disposed on the side surface of the drawer body that is different from the side surface on which the sliding member is mounted; the upper surface of the panel protrudes from the drawer body by a distance less than or equal to the distance between the lower surface of the strip block and the surface of the slide groove.

[0019] As a further preferred embodiment of this utility model, the panel is provided with a handle. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic cross-sectional view of the slide rail assembly of this utility model. Figure 1 .

[0021] Appendix Figure 2 This is a schematic cross-sectional view of the slide rail assembly of this utility model. Figure 2 .

[0022] Appendix Figure 3 Appendix to this utility model Figure 1 A schematic diagram of the local structure at point A.

[0023] Appendix Figure 4 This is a three-dimensional structural diagram of the drawer of this utility model.

[0024] Appendix Figure 5 This is a cross-sectional structural diagram of the drawer of this utility model.

[0025] Attached diagram descriptions: 1. Positioning component; 2. Sliding component; 3. Frame; 4. Drawer body; 5. Panel.

[0026] Strip block 101, strip groove 102, mounting groove 103, stopper 104, support spring 105;

[0027] Inclined surface 103a, protrusion 103b;

[0028] Rotating rod 104a1, guiding arc surface 104a2;

[0029] Surface 104b1, connecting surface 104b2, cut surface 104b3;

[0030] Slide 201, pulley 202;

[0031] Handle 51. Detailed Implementation

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] This utility model provides a slide rail assembly and a drawer.

[0036] As attached Figures 1-3 As shown, the slide rail assembly includes a positioning element 1 and a sliding element 2 that is slidably connected to the positioning element 1.

[0037] The positioning element 1 includes a strip block 101 and strip grooves 102 distributed along the length of the strip block 101, at least on one side of the strip block 101; the strip grooves 102 have a closed end and an inlet end. The phrase "strip grooves 102 distributed along at least one side of the strip block 101" means that the strip grooves 102 are provided at least on the upper surface of the strip block 101; as shown in the attached figure. Figure 1 and attached Figure 2 As shown, the N direction is the direction in which the slider 2 slides into the positioning member 1, and the M direction is the direction in which the slider 2 slides out of the positioning member 1. The "closed end and the entrance end" are defined as the front end along the N direction being the entrance end and the rear end being the closed end. The length of the strip groove 102 is approximately the same as the length of the strip block 101, and the strip groove has an opening at the entrance end that communicates with the outside.

[0038] The sliding member 2 includes a groove 201 that is slidably connected to the strip block 101, and a pulley 202 disposed on the groove wall of the groove 201 and slidably connected to the bottom surface of the strip groove 102. The number of pulleys 202 disposed on the inner top surface of the strip groove 102 is not less than two, to ensure the stability of the sliding member 2 as it moves on the strip groove 102.

[0039] The positioning element 1 further includes at least one mounting groove 103 disposed on the bottom surface of the groove 102 near the inlet end, a stopper 104 rotatably disposed in the mounting groove 103, and a support spring 105 disposed on the bottom surface of the mounting groove 103 and connected to the stopper 104.

[0040] As attached Figure 3 As shown, the blocker 104 includes a rotating part near the inlet end and a blocking part near the closed end; the rotating part is provided with a rotating rod 104a1 rotatably connected to the mounting groove 103, and a guide arc surface 104a2 is formed on the surface of the rotating part away from the bottom surface of the mounting groove 103; a baffle surface 104b1 is formed on the side of the blocking part near the closed end; the baffle surface 104b1 is smoothly connected to the guide arc surface 104a2 through a connecting surface 104b2.

[0041] The support spring 105 acts on the blocking part and causes the blocking surface 104b1 to protrude from the bottom surface of the strip groove 102.

[0042] It is worth noting that the size of the mounting groove 103 must allow all the rotating parts, the support spring 105, and part of the blocking parts to be placed into the mounting groove 103, and the rotating parts and the blocking parts must also be able to rotate within the groove. (See attached...) Figure 3 When the rotating part rotates clockwise around the rotating rod 104a1, it drives the blocking part to rotate into the mounting groove 103, causing the blocking part to retract into the mounting groove 103. Conversely, when the rotating part rotates counterclockwise, the blocking part rotates out of the mounting groove 103, and the portion protruding from the bottom surface of the strip groove 102 increases. The function of the support spring 105 is to ensure that the blocking device 104 has an initial angle when it is not under pressure, that is, the rotating part is located in the mounting groove 103, and the blocking part protrudes from the bottom surface of the strip groove 102.

[0043] Both the guide arc surface 104a2 and the connecting surface 104b2 are located on the upper surface of the stopper 104. The height of the connecting surface 104b2 should be greater than the height of the guide arc surface 104a2. This allows the pulley 202 to be gradually lifted as it moves along the upper surface of the stopper 104 until it passes the highest point, at which point the pulley 202 passes over the entire stopper 104. The spring 105 provides the stopper 104 with a retraction function, reducing the difficulty for the pulley 202 to pass over the stopper 104 and improving smoothness.

[0044] The stop surface 104b1 is a side surface that forms an acute angle with the guide arc surface 104a2. It does not play a role when the pulley 202 moves in the N direction. However, when the pulley 202 moves in the M direction, it first contacts the stop surface 104 when it reaches the stopper 104. The angle and height of the stop surface 104b1 prevent the pulley 202 from passing over it, thus preventing the pulley 202 from sliding out of the strip groove 102.

[0045] Therefore, by setting a strip groove, a pulley, and a stopper, this application ensures that the slider slides smoothly and without obstruction when it slides into the positioning member and when it slides out of the positioning member most of the time, but the slider cannot slide out of the positioning member completely. This not only avoids the slider from separating from the positioning member, but also improves the smoothness of the slider and the positioning member when sliding repeatedly. It has the characteristics of simple operation and safety and reliability.

[0046] In this embodiment, a cut surface 104b3 is formed on the side of the blocking part near the bottom surface of the mounting groove 103; an inclined surface 103a is provided on the bottom surface of the mounting groove 103 opposite to the cut surface 104b3; and the two ends of the support spring 105 are respectively connected to the cut surface 104b3 and the inclined surface 103a.

[0047] The 104b3 section is mainly used to provide installation space for the support spring 105, while the 103a section is used to optimize the installation direction of the support spring 105. The installation direction of the support spring 105 is preferably towards the inlet end. This setting can not only avoid the problem of the pulley 202 accidentally crossing the stop 104b1, but also effectively reduce the degree of torsion of the support spring 105 and improve its service life.

[0048] In some preferred embodiments, the bottom surface of the mounting groove 103 is further provided with a protrusion 103b located on the side end of the inclined surface 103a near the inlet end, which is used to abut against the side of the rotating part near the mounting groove 103. The protrusion 103b defines the maximum position of the rotating part's counterclockwise rotation. By abutting against the lower end of the rotating part, the angle of the rotating part's counterclockwise rotation is prevented from being too large, further reducing the possibility of the pulley 202 accidentally crossing the stop surface 104b1, and also avoiding the problem of the support spring 105 twisting in the opposite direction, further improving its service life.

[0049] In some preferred embodiments, the strip groove 102 is disposed on the upper surface of the strip block 101; and when the pulley 202 is connected to the bottom surface of the strip groove 102, the distance between the lower surface of the strip block 101 and the surface of the groove 201 is greater than the vertical height of the stop surface 104b1. This arrangement aims to ensure that the sliding member 2 can still detach from the positioning member 1 after being inserted, thus facilitating maintenance and replacement of parts. Specifically, when the rear pulley 202 moves along the M direction and abuts against the stop surface 104b1, since the distance between the lower surface of the strip block 101 and the surface of the groove 201 is greater than the vertical height of the stop surface 104b1, the height between the strip groove 102 and the pulley 202 can be increased by lifting the sliding member 2, allowing it to pass over the stop surface 104b1, thereby completely disengaging the pulley 202 from the strip groove 102.

[0050] A drawer equipped with the aforementioned slide rail assembly, as shown in the attached diagram. Figure 4 and attached Figure 5 As shown, the device includes a frame 3 and a drawer 4. The frame 3 is equipped with either the positioning element 1 or the sliding element 2, and the drawer 4 is equipped with either the sliding element 2 or the positioning element 1. The frame 3 can be equipped with the positioning element 1, in which case the drawer 4 is equipped with the sliding element 2; conversely, the frame 3 can be equipped with the sliding element 2, and the drawer 4 can be equipped with the positioning element 1.

[0051] There can be one drawer body 4; in this case, the distance between the upper surface of the drawer body 4 and the inner top surface of the frame 3 is greater than or equal to the distance between the lower surface of the strip block 101 and the surface of the slide groove 201. This is designed to ensure that the drawer body 4 can be completely removed from the frame 3.

[0052] The number of drawers 4 can be two or more; in addition to meeting the distance requirement between the upper surface of the drawer 4 and the inner top surface of the frame 3, the distance between the upper surface of the lower drawer 4 and the lower surface of the adjacent upper drawer 4 is greater than or equal to the distance between the lower surface of the strip block 101 and the surface of the slide groove 201. This arrangement ensures that each drawer 4 can be independently removed from the frame 3.

[0053] In this embodiment, the drawer further includes a panel 5 disposed on the side surface of the drawer body 4 that is different from the side surface on which the sliding member 2 is mounted. A handle 51 is disposed on the panel 5. The upper surface of the panel 5 protrudes from the drawer body 4 by a distance less than or equal to the distance between the lower surface of the strip block 101 and the surface of the slide groove 201. The portion of the panel 5 protruding from the upper surface of the drawer body 4 is used to conceal gaps (the distance between the upper surface of the drawer body 4 and the inner top surface of the frame 3, and the distance between the upper surface of the lower drawer body 4 and the lower surface of the adjacent upper drawer body 4), improving the drawer's aesthetics.

[0054] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A slide rail assembly, comprising a positioning member (1) and a sliding member (2) slidably connected to the positioning member (1), characterized in that: The positioning element (1) includes a strip block (101) and strip grooves (102) provided on at least one side of the strip block (101) and distributed along the length direction of the strip block (101); the strip grooves (102) have a closed end and an inlet end; The sliding member (2) includes a sliding groove (201) that is slidably connected to the strip block (101), and a pulley (202) disposed on the groove wall of the sliding groove (201) and slidably connected to the bottom surface of the strip groove (102). The positioning member (1) further includes at least one mounting groove (103) disposed on the bottom surface of the groove (102) near the inlet end, a stopper (104) rotatably disposed in the mounting groove (103), and a support spring (105) disposed on the bottom surface of the mounting groove (103) and connected to the stopper (104). The blocker (104) includes a rotating part near the inlet end and a blocking part near the closed end; the rotating part is provided with a rotating rod (104a1) rotatably connected to the mounting groove (103), and a guide arc surface (104a2) is formed on the surface of the rotating part away from the bottom surface of the mounting groove (103); a baffle (104b1) is formed on the side of the blocking part near the closed end; the baffle (104b1) is smoothly connected to the guide arc surface (104a2) through a connecting surface (104b2). The support spring (105) acts on the blocking part and causes the blocking surface (104b1) to protrude from the bottom surface of the groove (102).

2. The slide rail assembly according to claim 1, characterized in that: A cut surface (104b3) is formed on the side of the mounting groove (103) near the bottom surface of the mounting groove (103); an inclined surface (103a) is provided on the bottom surface of the mounting groove (103) opposite to the cut surface (104b3); the two ends of the support spring (105) are respectively connected to the cut surface (104b3) and the inclined surface (103a).

3. A slide rail assembly according to claim 2, characterized in that: The bottom surface of the mounting groove (103) is also provided with a protrusion (103b) located on the side end of the inclined surface (103a) near the inlet end, which is used to abut against the side of the rotating part near the mounting groove (103).

4. A slide rail assembly according to claim 1, characterized in that: The strip groove (102) is disposed on the upper surface of the strip block (101); and when the pulley (202) is connected to the bottom surface of the strip groove (102), the distance between the lower surface of the strip block (101) and the surface of the groove (201) is greater than the vertical height of the stop surface (104b1).

5. A drawer, provided with a slide rail assembly as described in any one of claims 1 to 4, characterized in that: It includes a frame (3) and a drawer (4); the frame (3) is equipped with the positioning element (1) or the sliding element (2), and the drawer (4) is equipped with the sliding element (2) or the positioning element (1).

6. A drawer according to claim 5, characterized in that: The number of drawer bodies (4) is one; the distance between the upper surface of the drawer body (4) and the inner top surface of the frame body (3) is greater than or equal to the distance between the lower surface of the strip block (101) and the surface of the slide groove (201).

7. A drawer according to claim 5, characterized in that: The number of drawer bodies (4) is two or more; the distance between the upper surface of the drawer body (4) at the lower end and the lower surface of the drawer body (4) at the adjacent upper end is greater than or equal to the distance between the lower surface of the strip block (101) and the surface of the groove (201).

8. A drawer according to claim 6, characterized in that: It also includes a panel (5) disposed on the side surface of the drawer body (4) that is different from the side surface on which the sliding member (2) is mounted; the upper surface of the panel (5) protrudes from the drawer body (4) by a distance less than or equal to the distance between the lower surface of the strip block (101) and the surface of the groove (201).

9. A drawer according to claim 8, characterized in that: A handle (51) is provided on the panel (5).

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