Drawer sliding rail and sliding rail assembly

Abstract

The utility model discloses a drawer slide rail and a slide rail assembly, the drawer slide rail comprises a middle rail, an outer rail and an inner rail, and the middle rail is provided with a first stop part; the middle rail is arranged on the outer rail in a sliding mode, the outer rail is provided with a first movable face, the first movable face is provided with a limiting part matched with the first stopping part for limiting, the limiting part is provided with a limiting inclined groove and a limiting check block, and the limiting check block is arranged on the limiting inclined groove in a sliding mode; when the limiting check block slides from the first position to the second position, at least one part of the limiting check block is arranged on the first movable face in a protruding mode and forms blocking with the first blocking part, so that the middle rail is connected with the outer rail. When the limiting stop block slides from the second position to the first position, the limiting stop block and the first stop part are staggered or separated, so that the middle rail can be separated from the outer rail; the inner rail is arranged on the middle rail in a sliding mode, the inner rail is provided with a second movable face, the second movable face is provided with a second blocking part matched with the limiting check block for limiting, and the limiting check block is blocked by the second blocking part so that the limiting check block can be switched to the second position from the first position.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture hardware accessories, in particular to a drawer slide rail and a slide rail assembly. Background Art

[0002] Slide rails are mainly installed on furniture drawers. According to the material classification, they are mainly divided into stainless steel slide rails and iron slide rails. According to whether they are fully pulled out, they can be divided into two-section slide rails and three-section slide rails. The three-section rails include a middle rail, an outer rail and an inner rail. Among them, the outer rail can be movably inserted into the middle rail through a first movable part, and the middle rail is fixedly installed on the cabinet side wall of the drawer. The inner rail is fixedly installed on the drawer side wall, and the inner rail is slidably inserted into the outer rail through a second movable part and drives the second movable part.

[0003] In the existing related art, in order to make the slide rail detachable, a first stop portion is generally provided on the outer rail, and a limiting block is generally provided on the inner rail to cooperate with the first stop portion to limit the inner rail. The limiting block is a plastic part with a certain degree of elasticity. When no external force is applied, the limiting block cooperates with the first stop portion to limit the inner rail from separating from the outer rail. When an external force is applied to the limiting block, the limiting block undergoes elastic deformation and is not restricted by the first stop portion, so that the inner rail can separate from the outer rail. The main disadvantages of the traditional design are as follows:

[0004] (1) The limit block is fixed and deforms in a single direction, but the slide rails are installed on the left and right sides of the drawer. Therefore, when the external force acts downward or upward on the limit block on one side of the drawer during disassembly, the limit block on the other side of the drawer must be applied in the opposite direction. This disassembly method in different directions brings inconvenience to the operator and often causes ordinary users to fail in disassembly due to unfamiliarity with the disassembly method, which greatly affects the user experience.

[0005] (2) The limiting block needs to have elastic deformation function. In traditional designs, the slide rail accessories are all plastic parts. The use of plastic materials limits the application range of the slide rail. Generally, it can only be used in environments at room temperature and cannot be used in environments with higher or lower temperatures. It also reduces the market competitiveness of the product.

[0006] (3) The first stopper and the limiting block are relatively large in size, which increases the production cost of the slide rail.

[0007] In the existing related technology, the middle rail is fixedly installed on the side wall of the drawer cabinet, and the inner rail is fixedly installed on the side wall of the drawer. During installation, screws are generally used to fix the slide rail. The advantage of using screws to fix home decoration is that it can be reused, but the slide rail can only be used for wooden furniture drawers and cannot be used on other metal furniture drawers or home appliance drawers. Utility Model Content

[0008] The utility model provides a drawer slide rail and a slide rail assembly, which solves the technical problems in the existing related technology that the slide rail has a small application range, and the installation efficiency is low due to unsatisfactory design, and the slide rail product cost is high.

[0009] In order to solve the above technical problems, the present invention provides a drawer slide rail, comprising:

[0010] a middle rail, wherein the middle rail is provided with a first stopper;

[0011] The outer rail, the middle rail is slidably provided on the outer rail, the outer rail has a first movable surface, the first movable surface is provided with a limiting portion that cooperates with the first stop portion to limit, the limiting portion is provided with a limiting inclined groove and a limiting stop, and the limiting stop is slidably provided on the limiting inclined groove; wherein, the limiting stop can slide and switch between a first position and a second position on the limiting inclined groove; when the limiting stop slides from the first position to the second position, at least a part of the limiting stop is protruded from the first movable surface and forms a block with the first stop portion, so that the middle rail and the outer rail are connected to each other; when the limiting stop slides from the second position to the first position, the position of the limiting stop is relatively displaced or separated from the position of the first stop portion, so that the middle rail can be detached from the outer rail; and

[0012] An inner rail is slidably arranged on the middle rail, and the inner rail has a second movable surface. The second movable surface is provided with a second stop portion that cooperates with the limit block to limit the position, and the limit block is blocked by the second stop portion so that the limit block switches from the first position to the second position.

[0013] In some embodiments, the limiting portion is a metal member.

[0014] In some embodiments, the limiting chute and / or the first stop portion and / or the second stop portion are formed by a stamping process.

[0015] In some embodiments, the outer rail has a third movable surface, the bottom of the limiting inclined groove is penetrated to form a first through groove, the limiting block is provided with a driving button, and the driving button is provided on the third movable surface and is connected with the limiting block through the first through groove.

[0016] In some embodiments, the first through-slot extends along the length direction of the outer rail, so that the first through-slot is in the shape of an elongated strip.

[0017] In some embodiments, the limiting block is triangular in shape, and the limiting block is matched with the limiting chute;

[0018] When the limiting block slides and switches between the first position and the second position, the side surface of the limiting block remains relatively parallel to the outer rail.

[0019] In some embodiments, reinforcement grooves are respectively provided on opposite sides of the limiting inclined groove, and the reinforcement grooves are cooperated with the first through groove.

[0020] In some embodiments, the limiting block is provided with at least two sliding protrusions that slide in cooperation with the reinforcement groove;

[0021] When the limiting block slides and switches between the first position and the second position, at least a portion of the sliding protrusion slides in cooperation with the reinforcement groove.

[0022] In some embodiments, the middle rail is slidably inserted into the outer rail through a first movable member, and the first movable member is provided with a third stop portion, and the third stop portion cooperates with the limiting block to limit the first movable member so that it cannot move out of the outer rail.

[0023] The utility model also provides a slide rail assembly, comprising the drawer slide rail as described above.

[0024] Compared with the existing related technologies, the drawer slide and slide assembly of the present invention have the following beneficial effects:

[0025] The present invention provides a first stopper on the middle rail and a limiting chute and a limiting block on the first movable surface of the outer rail. The limiting block cooperates with the first stopper to block or dislocate during its sliding motion along the limiting chute, thereby controlling the connection or disconnection between the middle rail and the outer rail. Furthermore, the second stopper on the inner rail cooperates with the limiting block. When the second stopper and the limiting block cooperate to block, the limiting block is restricted from sliding from a first position to a second position, thereby maintaining the connection between the middle rail and the outer rail. This improves the safety of the drawer slide and enhances the user experience. The drawer slide of the present invention is more convenient to assemble and disassemble, has low operational difficulty, is unaffected by the operating environment, and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of a drawer slide rail according to an embodiment of the present invention, in which the middle rail, outer rail and inner rail are in an unfolded state;

[0027] Figure 2 This is another structural schematic diagram of the drawer slide rail of an embodiment of the present utility model, in which the middle rail, outer rail and inner rail are in an unfolded state;

[0028] Figure 3 yes Figure 2 A top view of

[0029] Figure 4 yes Figure 3 sectional view of

[0030] Figure 5 yes Figure 4 An enlarged view of portion B in the figure, in which the limit stop is in the first position;

[0031] Figure 6 This is a schematic structural diagram of the outer rail and the first movable member of an embodiment of the utility model;

[0032] Figure 7 yes Figure 6 Enlarged view of part C;

[0033] Figure 8 yes Figure 6 A top view of

[0034] Figure 9 yes Figure 8 sectional view of

[0035] Figure 10 yes Figure 9 An enlarged view of portion E in the middle, in which the limit stop is in the second position;

[0036] In the picture:

[0037] 1. Middle rail; 11. First stopper;

[0038] 2. Outer rail; 21. First movable surface; 22. Restriction portion; 221. Restriction inclined groove; 222. Restriction block; 23. Third movable surface; 24. First through groove; 25. Drive button;

[0039] 3. Inner rail; 31. Second movable surface; 32. Second stopper;

[0040] 4. First movable member; 41. Third stopping portion. DETAILED DESCRIPTION

[0041] The following is a further detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0044] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0045] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0046] In order to solve the technical problems of the limited application range of slide rails in the existing related technologies, the low installation efficiency and the high cost of slide rail products caused by unsatisfactory design, as shown in the figure, the utility model discloses a drawer slide rail and a slide rail assembly, including a middle rail 1, an outer rail 2 and an inner rail 3, the middle rail 1 is provided with a first stopper 11; the middle rail 1 is slidably arranged on the outer rail 2, the outer rail 2 has a first movable surface 21, the first movable surface 21 is provided with a limiting portion 22 that cooperates with the first stopper 11 to limit, the limiting portion 22 is provided with a limiting inclined groove 221 and a limiting block 222, the limiting block 222 is slidably arranged on the limiting inclined groove 221; wherein the limiting block 222 can slide between a first position and a second position on the limiting inclined groove 221 Dynamic switching, when the limiting block 222 slides from the first position to the second position, at least a portion of the limiting block 222 protrudes from the first movable surface 21 and forms a block with the first stopping portion 11, so that the middle rail 1 and the outer rail 2 are connected to each other; when the limiting block 222 slides from the second position to the first position, the position of the limiting block 222 and the position of the first stopping portion 11 are relatively misaligned or separated, so that the middle rail 1 can be separated from the outer rail 2; the inner rail 3 is slidably provided on the middle rail 1, and the inner rail 3 has a second movable surface 31, and the second movable surface 31 is provided with a second stopping portion 32 that cooperates with the limiting block 222 to limit the position, and the limiting block 222 is blocked by the second stopping portion 32 so that the limiting block 222 switches from the first position to the second position.

[0047] Based on the above technical solution, the present invention provides a first stopper 11 on the middle rail 1 and a limiting chute 221 and a limiting block 222 on the first movable surface 21 of the outer rail 2. The limiting block 222 cooperates with the first stopper 11 to block or dislocate when sliding on the limiting chute 221, thereby controlling the connection or disconnection between the middle rail 1 and the outer rail 2. Furthermore, the second stopper 32 of the inner rail 3 cooperates with the limiting block. When the second stopper 32 cooperates with the limiting block 222 to block, the limiting block 222 is restricted from sliding from the first position to the second position, thereby maintaining the connection between the middle rail 1 and the outer rail 2. This improves the safety of the drawer slide and enhances the user experience. The drawer slide of the present invention is more convenient to assemble and disassemble, has low operational difficulty, is not affected by the operating environment, and has a wider range of uses.

[0048] The limiting chute 221 gradually tilts downward or upward from one end to the other. When the limiting block 222 is located at a relatively high position in the limiting chute 221, the limiting block 222 is in a first position, blocking the limiting block 222 and the first stopper 11, thereby connecting the middle rail 1 and the outer rail 2. When the limiting block 222 is located at a relatively low position in the limiting chute 221, the limiting block 222 is in a second position, displaced from or separated from the first stopper 11, thereby smoothly separating the middle rail 1 from the outer rail 2. In some specific embodiments, when the limiting block 222 is in the first position, the limiting block 222 is located at the highest point of the limiting chute 221, and when the limiting block 222 is in the second position, the limiting block 222 is located at the lowest point of the limiting chute 221.

[0049] The middle rail 1 , the outer rail 2 and the inner rail 3 are respectively made of metal, such as iron or stainless steel, and are manufactured by a stamping process or a bending process.

[0050] In some embodiments, the limiting portion 22 is a metal part, that is, the portion of the outer rail 2 forming the limiting inclined groove 221 and the first stopping portion 11 are both metal parts, so that the first stopping portion 11 can slide smoothly on the limiting inclined groove 221 with less sliding friction and high durability.

[0051] In some embodiments, the limiting inclined groove 221 and / or the first stopping portion 11 and / or the second stopping portion 32 are formed by a stamping process, which is simple and has high production efficiency.

[0052] In some embodiments, the outer rail 2 has a third movable surface 23, a first through-slot 24 is formed through the bottom of the limiting inclined groove 221, and the limiting block 222 is provided with an actuating button 25. The actuating button 25 is disposed on the third movable surface 23 and engages with the limiting block 222 via the first through-slot 24. The user drives the limiting block 222 on the third movable surface 23 by actuating the button 25, thereby adjusting the position of the limiting block 222 in the limiting inclined groove 221 to maintain connection or separation between the middle rail 1 and the outer rail 2.

[0053] In some embodiments, the first through-slot 24 extends along the length of the outer rail 2, so that the first through-slot 24 is in the shape of an elongated strip, so that the limiting block 222 can slide along the length of the outer rail 2. In other embodiments, the extending direction of the first through-slot 24 and the length of the outer rail 2 can form an angle, such as 30 degrees or 60 degrees, to limit the sliding of the limiting block 222 along the extending direction of the first through-slot 24.

[0054] In some embodiments, the limiting block 222 is triangular in shape and is configured to match the limiting inclined slot 221. When the limiting block 222 slides between the first position and the second position, the side surface of the limiting block 222 remains relatively parallel to the outer rail 2. The inclined surface of the limiting block 222 protrudes from the limiting inclined slot 221. When the limiting block 222 is driven to slide and abuts the first stopper 11, the inclined surface of the limiting block 222 allows the first stopper 11 to slide smoothly. Subsequently, the first stopper 11 abuts the vertical surface of the limiting block 222, thereby forming a block between the first stopper 11 and the limiting block 222.

[0055] In some embodiments, two opposite sides of the limiting inclined groove 221 are provided with reinforcement grooves (not shown in the figure), and the reinforcement grooves are provided in coordination with the first through groove 24, i.e., the extending direction of the reinforcement grooves is the same as the extending direction of the first through groove 24. For example, the two reinforcement grooves are provided at the same height.

[0056] Furthermore, in some embodiments, the limit block 222 is provided with at least two sliding protrusions (not shown) that slide in conjunction with the reinforcement grooves. When the limit block 222 slides between the first and second positions, at least a portion of the sliding protrusions slide in conjunction with the reinforcement grooves. For example, there are two sliding protrusions, one on each opposite side of the limit block 222, and the other sliding protrusions slide in conjunction with the two reinforcement grooves. When the limit block 222 slides within the limiting inclined groove 221, the sliding protrusions also slide within the reinforcement grooves, thereby improving the sliding stability of the limit block 222.

[0057] In some embodiments, the middle rail 1 is slidably inserted into the outer rail 2 via a first movable member 4. The first movable member 4 is provided with a third stopper 41, which cooperates with a limit block 222 to prevent the first movable member 4 from being removed from the outer rail 2. The first movable member 4 is, for example, a bead piece, and is provided with a plurality of ball bearings, which allow the middle rail 1 to be slidably mounted on the outer rail 2 via the ball bearings. The first movable member 4 cooperates with the limit block 222 via the third stopper 41 to maintain the first movable member 4 on the outer rail 2, thereby allowing the middle rail 1 to be slidably mounted on the outer rail 2.

[0058] The present invention also provides a slide rail assembly, including the aforementioned drawer slide rail. The slide rail assembly can be removably mounted on the side of a drawer via a supporting portion (not shown). Specifically, the outer rail 2 has a first mounting surface, on which at least two supporting portions are vertically disposed. Positioning adjustment members (not shown) are vertically disposed on the supporting portions. The positioning adjustment members are configured to align with the side of the drawer. The first mounting surface also includes a positioning pin and an adjustment slot. The positioning pin is vertically disposed within the adjustment slot and protrudes from the first mounting surface.

[0059] A drawer slide and a slide assembly based on the above-mentioned embodiment of the utility model have at least the following beneficial effects:

[0060] (1) The middle rail 1 is provided with a first stopper 11, and the first movable surface 21 of the outer rail 2 is provided with a limiting inclined groove 221 and a limiting block 222. The limiting block 222 cooperates with the first stopper 11 to block or dislocate during the sliding process on the limiting inclined groove 221, thereby controlling the connection or separation between the middle rail 1 and the outer rail 2.

[0061] (2) The second stopper 32 of the inner rail 3 cooperates with the limit block. When the second stopper 32 cooperates with the limit block 222 to block, the limit block 222 is restricted from sliding from the first position to the second position, thereby keeping the middle rail 1 connected to the outer rail 2, improving the safety of the drawer slide and enhancing the user experience. The drawer slide of the utility model is more convenient to disassemble and assemble, with low operating difficulty, and is not affected by the use environment, and has a wider range of uses.

[0062] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0063] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A drawer slide, characterized in that: include: a middle rail, wherein the middle rail is provided with a first stopper; The outer rail, the middle rail is slidably provided on the outer rail, the outer rail has a first movable surface, the first movable surface is provided with a limiting portion that cooperates with the first stop portion to limit, the limiting portion is provided with a limiting inclined groove and a limiting stop, and the limiting stop is slidably provided on the limiting inclined groove; wherein, the limiting stop can be slidably switched between a first position and a second position on the limiting inclined groove; when the limiting stop slides from the first position to the second position, at least a part of the limiting stop protrudes from the first movable surface and forms a block with the first stop portion, so that the middle rail and the outer rail are connected to each other; when the limiting stop slides from the second position to the first position, the position of the limiting stop is relatively displaced or separated from the position of the first stop portion, so that the middle rail can be detached from the outer rail; as well as An inner rail is slidably arranged on the middle rail, and the inner rail has a second movable surface. The second movable surface is provided with a second stop portion that cooperates with the limit block to limit the position, and the limit block is blocked by the second stop portion so that the limit block switches from the first position to the second position.

2. A drawer slide according to claim 1, characterized in that: The limiting portion is a metal part.

3. The drawer slide according to claim 1, characterized in that: The limiting inclined groove and / or the first stopping portion and / or the second stopping portion are formed by a stamping process.

4. The drawer slide according to claim 1, characterized in that: The outer rail has a third movable surface, the bottom of the limiting inclined groove is penetrated to form a first through groove, the limiting block is provided with a driving button, the driving button is arranged on the third movable surface and is connected with the limiting block through the first through groove.

5. The drawer slide according to claim 4, characterized in that: The first through slot extends along the length direction of the outer rail, so that the first through slot is in a long strip shape.

6. The drawer slide according to claim 5, characterized in that: The limiting block is triangular in shape, and is matched with the limiting chute; When the limiting block slides and switches between the first position and the second position, the side surface of the limiting block remains relatively parallel to the outer rail.

7. The drawer slide according to claim 6, characterized in that: Reinforcement grooves are respectively provided on opposite sides of the limiting inclined groove, and the reinforcement grooves are matched with the first through grooves.

8. The drawer slide according to claim 7, characterized in that: The limiting block is provided with at least two sliding protrusions that slide in cooperation with the reinforcing groove; When the limiting block slides and switches between the first position and the second position, at least a portion of the sliding protrusion slides in cooperation with the reinforcement groove.

9. A drawer slide according to any one of claims 1 to 8, characterized in that: The middle rail is slidably inserted into the outer rail through a first movable member. The first movable member is provided with a third stopper. The third stopper cooperates with the limiting block to limit the first movable member from moving out of the outer rail.

10. A slide rail assembly, characterized in that: The invention comprises a drawer slide rail according to any one of claims 1 to 9.

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