Slide rail device and drawer cabinet

Abstract

The present invention discloses a slide rail device, comprising at least two slide rail mechanisms arranged vertically, the slide rail mechanisms comprising a slide rail seat, a sliding assembly, a linkage structure, and a locking assembly. When a user pulls out a drawer backward, the corresponding sliding assembly slides backward, causing the corresponding transmission member to move in a direction away from the sliding assembly, driving the corresponding linkage structure to move vertically outward, driving the corresponding linkage structures of the remaining slide rail mechanisms to move vertically inward, causing the corresponding locking members of the remaining slide rail mechanisms to switch from an unlocked state to a locked state to prevent the remaining slide assemblies from sliding backward, thereby ensuring that only one drawer of the drawer cabinet can be in an open state, reducing the risk of the drawer cabinet tipping over and improving user safety. The present invention also discloses a drawer cabinet using the above-mentioned slide rail device.

Description

Technical Field

[0001] The present invention relates to the field of slide rails, and in particular to a slide rail device and a drawer cabinet. Background Art

[0002] Existing chests of drawers typically include a cabinet body and multiple drawers arranged vertically. The drawers are connected to the cabinet body in a one-to-one manner via parallel rail mechanisms. The rail mechanisms include a rail base mounted on the cabinet body and a sliding assembly connected to the drawers, which slides slidably on the rail base. When more than one drawer is opened simultaneously, the chest of drawers' center of gravity may shift, potentially causing the chest of drawers to tip over, impacting the safety of users, particularly children. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a slide rail device that can be used in a drawer cabinet to reduce the risk of the drawer cabinet tipping over and improve user safety.

[0004] The invention also discloses a drawer cabinet adopting the slide rail device.

[0005] The camming member is a pair of camming members, each of which is adapted to move relative to the other end of the camming member when the camming member is in the forward and backward direction, and the camming member is adapted to move relative to the other end of the camming member when the camming member is in the forward and backward direction. The cam is configured to move the locking member to the unlocked position when the cam is in the unlocked position and the locking member is in the locked position when the cam is in the locked position.

[0006] The slide rail device according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: each drawer corresponds to a slide rail mechanism, and when the drawer is not pulled out, the locking reset member keeps the locking member in the unlocked state; when the user pulls out a drawer backward, the corresponding sliding assembly slides backward accordingly, causing the corresponding transmission member to move in a direction away from the sliding assembly, driving the corresponding linkage structure to move vertically outward, and driving the corresponding linkage structures of the remaining slide rail mechanisms to move vertically inward, so that the corresponding locking members of the remaining slide rail mechanisms are switched from the unlocked state to the locked state to prevent the remaining slide assemblies from sliding backward, so that only one drawer of the drawer cabinet can be in the open state, reducing the risk of the drawer cabinet tipping over and improving the safety of the user.

[0007] According to some embodiments of the present invention, the locking member is pivotally connected to the slide rail seat; the locking member is provided with a stop portion, and the sliding assembly is provided with a matching structure. In the locked state, the stop portion abuts against the matching structure; in the unlocked state, the stop portion is located outside the moving trajectory of the matching structure.

[0008] According to some embodiments of the present invention, the rotation axis of the locking member is arranged vertically, the locking member and / or the linkage structure is provided with a first pushing surface, the first pushing surface is inclined relative to the rotation plane of the locking member, and the linkage structure pushes the locking member to rotate through the first pushing surface.

[0009] According to some embodiments of the present invention, the slide rail mechanism further includes a buffer structure, which is disposed between the matching structure and the slide rail seat and buffers the forward and backward sliding of the matching structure.

[0010] According to some embodiments of the present invention, the sliding assembly further includes an inner rail, which is slidably arranged on the slide rail seat along the front-to-rear direction, and the inner rail is provided with a connecting portion. In the locked state, the connecting portion is fixed relative to the mating structure; in the unlocked state, the connecting portion can be separated from the mating structure.

[0011] According to some embodiments of the present invention, the transmission member is pivotally connected to the slide rail seat and the rotation axis is arranged vertically. The transmission member and / or the linkage structure is provided with a second pushing surface, and the second pushing surface is inclined relative to the rotation plane of the transmission member. The transmission member pushes the linkage structure to move through the second pushing surface.

[0012] According to some embodiments of the present invention, two linkage structures are provided, and the two linkage structures are respectively placed on the upper and lower sides of the slide rail mechanism; between the two adjacent slide rail mechanisms, the linkage structure on the upper side of the slide rail mechanism relatively below and the linkage structure on the lower side of the slide rail mechanism relatively above are connected by the connecting member and can move vertically together; in the same slide rail mechanism, when one of the linkage structures is linked by the connecting member and moves vertically inward, the other linkage structure can move vertically outward.

[0013] According to some embodiments of the present invention, an elastic reset member is provided between the two linkage structures of the slide rail mechanism. When the linkage structure moves vertically inward, the two ends of the elastic reset member respectively abut against the two linkage structures and can apply an elastic reset force to cause the linkage structure to move vertically outward.

[0014] According to some embodiments of the present invention, the sliding assembly and / or the transmission member is provided with a third pushing surface, and when the sliding assembly slides backward, one end of the transmission member is pushed to rotate by the third pushing surface.

[0015] The drawer cabinet according to the second embodiment of the present invention includes the above-mentioned slide rail device.

[0016] The drawer cabinet according to the embodiment of the second aspect of the present invention has at least the following beneficial effects: due to the adoption of the above-mentioned slide rail device, the drawers of the drawer cabinet cannot be opened simultaneously, thereby reducing the risk of the drawer cabinet tipping over.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0019] Figure 1 It is a left side schematic diagram of a slide rail device according to an embodiment of the present invention, in which multiple slide rail mechanisms are arranged vertically and the slide assembly has not moved backward;

[0020] Figure 2 for Figure 1 A schematic cross-sectional view of the slide rail mechanism in the AA direction;

[0021] Figure 3 for Figure 2 A partial enlarged schematic diagram of position B of the slide rail mechanism;

[0022] Figure 4This is a left side schematic diagram of a slide rail device according to an embodiment of the present invention, in which multiple slide rail mechanisms are arranged vertically and a certain slide assembly moves backward;

[0023] Figure 5 for Figure 4 A cross-sectional schematic diagram of the slide rail mechanism in the CC direction with the sliding assembly moved backward;

[0024] Figure 6 for Figure 5 A partial enlarged schematic diagram of position E of the slide rail mechanism;

[0025] Figure 7 for Figure 4 A cross-sectional schematic diagram of the slide rail mechanism in the DD direction with the remaining sliding components locked;

[0026] Figure 8 for Figure 7 A partial enlarged schematic diagram of position F of the slide rail mechanism;

[0027] Figure 9 An exploded schematic diagram of a slide rail mechanism according to an embodiment of the present invention;

[0028] Figure 10 is a three-dimensional schematic diagram of a locking member of a slide rail mechanism according to an embodiment of the present invention;

[0029] Figure 11 is a three-dimensional schematic diagram of the linkage structure of the slide rail mechanism according to an embodiment of the present invention;

[0030] Figure 12 Schematic diagram of a three-dimensional view of a locking assembly, a linkage structure and an elastic return member of a slide rail mechanism according to an embodiment of the present invention;

[0031] Figure 13 A schematic front view of a linkage structure and a connecting member according to another embodiment of the present invention;

[0032] Figure 14 An exploded schematic diagram of a linkage structure and a connecting member according to another embodiment of the present invention;

[0033] Figure 15 is a schematic three-dimensional diagram of an adjusting member according to another embodiment of the present invention;

[0034] Figure 16 for Figure 13 A cross-sectional schematic diagram of a linkage structure and a connecting member according to another embodiment of the present invention.

[0035] Reference numerals:

[0036] Slide rail mechanism 10;

[0037] Slide rail seat 100, main body 110, protective shell 120, guide bar 121, rotational clearance groove 122, transmission clearance groove 123, locking clearance groove 124;

[0038] Sliding assembly 200, matching structure 210, sliding member 211, rotating member 212, slot 2121, inner rail 220, connecting portion 221;

[0039] Linkage structure 300, linkage seat 310, plug-in through hole 311, limit block 312, adjustment member 320, vortex groove 321, push member 330, matching block 331, limit groove 332;

[0040] Locking assembly 400, transmission member 410, locking member 420, stopper 421, locking reset member 430;

[0041] Connector 500;

[0042] A first push surface 610, a second push surface 620, and a third push surface 630;

[0043] Buffer structure 700;

[0044] Elastic return member 800. DETAILED DESCRIPTION

[0045] The following describes embodiments of the present invention in detail. 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 only to explain the present invention and are not to be construed as limiting the present invention.

[0046] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In the description of the present invention, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0048] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0049] Existing chests of drawers typically include a cabinet body and multiple drawers arranged vertically. The drawers are connected to the cabinet body in a one-to-one manner via parallel rail mechanisms. The rail mechanisms include a rail base mounted on the cabinet body and a sliding assembly connected to the drawers, which slides slidably on the rail base. When more than one drawer is opened simultaneously, the chest of drawers' center of gravity may shift, potentially causing the chest of drawers to tip over, impacting the safety of users, particularly children.

[0050] Reference Figures 1 to 16 , is a slide rail device according to an embodiment of the present invention, comprising a plurality of slide rail mechanisms 10 arranged vertically, the slide rail mechanism 10 comprising a slide rail seat 100, a sliding assembly 200, a linkage structure 300 and a locking assembly 400, the sliding assembly 200 being slidably arranged on the slide rail seat 100 along the front-rear direction, the linkage structure 300 being movably arranged on the slide rail seat 100 along the vertical direction, the locking assembly 400 comprising a transmission member 410, a locking member 420 and a locking reset member 430, the transmission member 410 being movably arranged on the slide rail seat 100 and being able to move toward or away from the sliding assembly 200, the locking member 420 being movably arranged on the slide rail seat 100 and having a locked state and an unlocked state; in the locked state, the locking member 420 can stop the corresponding sliding assembly 200 from sliding backward; in the unlocked state, the locking member 420 0 is located outside the moving trajectory of the sliding assembly 200; the locking reset member 430 is used to make the locking member 420 have a tendency to switch to the unlocked state; when the sliding assembly 200 slides backward, the transmission member 410 can move in the direction away from the sliding assembly 200, and when the transmission member 410 moves in the direction away from the sliding assembly 200, it can drive the linkage structure 300 to move vertically outward, and when the linkage structure 300 moves vertically inward relative to the slide rail seat 100, it can drive the locking member 420 to switch from the unlocked state to the locked state; wherein, the two locking members 420 of the two adjacent slide rail mechanisms 10 are linked by the connecting member 500, and when the linkage structure 300 of one slide rail mechanism 10 moves vertically outward, it can drive the linkage structure 300 of the other slide rail mechanism 10 to move vertically inward.

[0051] Each drawer corresponds to a slide rail mechanism 10. When the drawer is not pulled out, the locking reset member 430 keeps the locking member 420 in the unlocked state; when the user pulls out a drawer backward, the corresponding sliding assembly 200 slides backward accordingly, causing the corresponding transmission member 410 to move in a direction away from the sliding assembly 200, driving the corresponding linkage structure 300 to move vertically outward, and driving the corresponding linkage structures 300 of the remaining slide rail mechanisms 10 to move vertically inward, so that the corresponding locking members 420 of the remaining slide rail mechanisms 10 are switched from the unlocked state to the locked state to prevent the remaining slide assemblies 200 from sliding backward, so that only one drawer of the drawer cabinet can be in the open state, reducing the risk of the drawer cabinet tipping over and improving the safety of the user.

[0052] Specifically, when the locking member 420 is in the locked state, the stop portion 421 may abut against the sliding assembly 200, or may not contact the sliding assembly 200, but be located within the moving trajectory of the sliding assembly 200. When the sliding assembly 200 moves slightly backward, the stop portion 421 abuts against the sliding assembly 200.

[0053] Specifically, in the slide rail device, the number of the slide rail mechanisms 10 can be two, three, or more than three. The number of the slide rail mechanisms 10 is determined according to the number of drawers of the drawer cabinet, and those skilled in the art can configure the specific configuration according to actual conditions.

[0054] In an embodiment, the locking member 420 is pivotally connected to the rail seat 100; the locking member 420 is provided with a stop portion 421, and the sliding assembly 200 is provided with a matching structure 210. In the locked state, the stop portion 421 abuts against the matching structure 210; in the unlocked state, the stop portion 421 is located outside the movement trajectory of the matching structure 210. In the above structure, the locking member 420 switches between the locked state and the unlocked state by rotating, and stops the matching structure 210 from moving backward through the stop portion 421, thereby achieving the function of stopping the sliding assembly 200 from sliding backward. The structure is simple and easy to implement. It is conceivable that the locking member 420 can also be slidably provided on the rail seat 100, switching between the locked state and the unlocked state by sliding, and the locking member 420 also stops the sliding assembly 200 from sliding backward through the stop portion 421.

[0055] When the locking member 420 is in the unlocked state, since the stop portion 421 is located outside the moving trajectory of the matching structure 210, the matching structure 210 of the sliding assembly 200 will not touch the locking member 420 when moving backward, so that the sliding assembly 200 can move backward smoothly.

[0056] In this embodiment, the rotation axis of the locking member 420 is arranged vertically. The locking member 420 and the linkage structure 300 are provided with a first pushing surface 610. The first pushing surface 610 is inclined relative to the rotation plane of the locking member 420. The linkage structure 300 uses the first pushing surface 610 to push the locking member 420 to rotate. When the linkage structure 300 moves vertically inward, the inclined first pushing surface 610 pushes the locking member 420 to move. This structure is simple and easy to implement. Specifically, the locking member 420 and the linkage structure 300 are both provided with the first pushing surface 610, which has good wear resistance. When the linkage structure 300 moves vertically inward, the two first pushing surfaces 610 can abut and switch the locking member 420 from the unlocked state to the locked state. It is conceivable that the locking member 420 may be provided with a first pushing surface 610, and the linkage structure 300 may have a corner. When the linkage structure 300 moves vertically inward, the corner abuts against the first pushing surface 610 to drive the locking member 420 to rotate; or the first pushing surface 610 may be provided in the linkage structure 300, and the locking member 420 may have a corner, and the corner abuts against the first pushing surface 610 to drive the locking member 420 to rotate; it is conceivable that there are many ways in which the linkage structure 300 moves vertically inward to drive the locking member 420 to rotate. For example, when the linkage structure 300 moves, the motor is controlled by a photoelectric switch to drive the locking member 420 to rotate.

[0057] In an embodiment, the slide rail mechanism 10 further includes a buffer structure 700, which is disposed between the mating structure 210 and the slide rail seat 100 and buffers the forward and backward sliding of the mating structure 210. The buffer structure 700 is provided to reduce the impact and noise caused by the drawer colliding with the cabinet body when the drawer is opened and closed by the slide rail assembly, thereby improving the user experience. Specifically, the buffer structure 700 is a buffer, which can be a hydraulic buffer or a spring buffer, etc. The fixed end of the buffer is fixedly connected to the slide rail seat 100, and the movable end of the buffer is connected to the mating structure 210, thereby buffering the forward and backward sliding of the sliding assembly 200 by buffering the mating structure 210. It is conceivable that the buffer structure 700 can also be a spring, one end of which is fixed to the slide rail seat 100 and the other end is connected to the mating structure 210; or the buffer structure 700 can be a spring, one end of which is fixed to the slide rail seat 100 and the other end is capable of abutting the mating structure 210; or the buffer structure 700 can also be an elastic cotton, with the front and back sides of the elastic cotton facing the slide rail seat 100 and the mating structure 210, respectively.

[0058] Specifically, the rail base 100 is provided with a guide bar 121 extending in the front-to-back direction, and the mating structure 210 is provided with a guide groove. The guide bar 121 slidably engages with the guide groove, allowing the mating structure 210 to slide in the front-to-back direction relative to the rail base 100. It is conceivable that a guide post extending in the front-to-back direction may be provided on the rail base 100, and a guide sleeve may be provided on the mating structure 210. The guide post and the guide sleeve slidably engage with each other, allowing the mating structure 210 to slide in the front-to-back direction relative to the rail base 100.

[0059] In this embodiment, the sliding assembly 200 further includes an inner rail 220, which is slidably mounted on the rail base 100 in a forward-backward direction. The inner rail 220 is provided with a connecting portion 221. In the locked state, the connecting portion 221 is fixed relative to the mating structure 210; in the unlocked state, the connecting portion 221 can be separated from the mating structure 210. Specifically, the inner rail 220 is mounted in a drawer. This structure ensures that the mating structure 210 remains in the same position and continuously abuts the transmission member 410 when the drawer is opened. Furthermore, in the locked state, the inner rail 220 is continuously secured, preventing the drawer from being opened.

[0060] In the embodiment, the mating structure 210 includes a sliding member 211 and a rotating member 212. The sliding member 211 is slidably disposed on the slide rail seat 100 along the front-to-back direction. The rotating member 212 is pivotally connected to the sliding member 211. A slot 2121 is disposed on the side wall of the rotating member 212. The slot 2121 is located on one side of the rotation axis of the rotating member 212. In the locked state, the lock hook portion abuts against and fixes the rotating member 212, and the connecting portion 221 is accommodated in the slot 2121. In the unlocked state, when the connecting portion 221 moves backward, the rotating member 212 is driven to rotate by the connecting portion 221, so that the connecting portion 221 can be disengaged from the slot 2121. The above-mentioned mating structure 210 has a simple structure, which can achieve the purpose of fixing the inner rail 220 in the locked state and being able to separate from the inner rail 220 in the unlocked state, thereby maintaining the mating structure 210 in the same position.

[0061] The transmission member 410 is pivotally connected to the slide rail seat 100 and the rotation axis is arranged vertically. The transmission member 410 and the linkage structure 300 are provided with a second push surface 620. The second push surface 620 is inclined relative to the rotation plane of the transmission member 410. The transmission member 410 pushes the linkage structure 300 to move through the second push surface 620.

[0062] Specifically, both the transmission member 410 and the linkage structure 300 are provided with second push surfaces 620, which have good wear resistance. When the transmission member 410 rotates, the two second push surfaces 620 can abut against each other and cause the linkage structure 300 to move vertically outward. It is conceivable that the transmission member 410 can be provided with second push surfaces 620, and the linkage structure 300 has a corner portion. When the transmission member 410 rotates, the corner portion abuts against the second push surfaces 620 to drive the linkage structure 300 to move vertically outward; or the linkage structure 300 can be provided with second push surfaces 620, and the transmission member 410 has a corner portion. The corner portion abuts against the second push surfaces 620 to drive the linkage structure 300 to move vertically outward. It is conceivable that there are many ways to drive the linkage structure 300 to move vertically outward when the transmission member 410 rotates. For example, when the rotating member 212 rotates, a photoelectric switch controls the movement of a linear motor, and the linear motor drives the linkage structure 300 to move vertically.

[0063] It is conceivable that the transmission member 410 can also slide linearly to move closer to or away from the sliding assembly 200.

[0064] In the embodiment, two linkage structures 300 are provided, and the two linkage structures 300 are respectively placed on the upper and lower sides of the slide rail mechanism 10. The linkage structures 300 placed on the vertical sides of the slide rail mechanism 10 respectively control the slide rail mechanism 10 located above and below, thereby facilitating the combined use of the slide rail mechanism 10.

[0065] In the embodiment, between two adjacent slide rail mechanisms 10, the linkage structure 300 on the upper side of the lower slide rail mechanism 10 and the linkage structure 300 on the lower side of the upper slide rail mechanism 10 are connected by a connector 500 so as to be able to move vertically together. Specifically, the connector 500 is a connecting rod, and both ends of the connecting rod 500 are fixedly connected to the linkage structure 300, so that the two linkage structures 300 located at both ends of the same connecting rod can move together, and when a linkage structure 300 moves vertically outward relative to the slide rail mechanism 10, the adjacent linkage structure 300 is driven by the connector 500 to move vertically inward relative to the corresponding slide rail mechanism 10.

[0066] In the same slide rail mechanism 10, when one linkage structure 300 is linked by the connecting member 500 and moves vertically inward, the other linkage structure 300 can move vertically outward. In this process, one linkage structure 300 can directly abut against the other linkage structure 300, so that when one linkage structure 300 is linked by the connecting member 500 and moves vertically inward, the other linkage structure 300 moves vertically outward; or a spring is provided between the two linkage structures 300, so that when one linkage structure 300 is linked by the connecting member 500 and moves vertically inward, the spring pushes the other linkage structure 300 to move vertically outward. In the field of mechanics, there are many structures in which one component drives another component to move in the same direction, and those skilled in the art can make specific configurations according to actual needs.

[0067] In an embodiment, an elastic reset member 800 is provided between the two linkage structures 300 of the slide rail mechanism 10. When the linkage structure 300 moves vertically inward, the two ends of the elastic reset member 800 respectively abut against the two linkage structures 300 and can apply an elastic reset force that causes the linkage structure 300 to move vertically outward. The elastic reset member 800 is provided. When the drawer is closed, that is, after the sliding assembly 200 is reset forward, the elastic reset members 800 of the remaining slide rail mechanisms 10 drive the linkage structures 300 to move vertically outward. The adjacent slide rail mechanisms 10 push the transmission member 410 to reset via the second push surface 620, so that the positions of the transmission member 410 and the linkage structure 300 are reset to the initial position. The above structure facilitates the automatic reset of the positions of the transmission member 410 and the linkage structure 300 to the initial position. Specifically, the elastic reset member 800 is a spring, and the two ends of the spring respectively abut against the two linkage structures 300 of the same slide rail mechanism 10. It is conceivable that the elastic return member 800 may also be a gas spring, with both ends of the gas spring respectively abutting against the two linkage structures 300; or the elastic return member 800 may also be a spring.

[0068] Specifically, when the drawer is closed, the linkage structure 300 located on the upper side of the corresponding slide rail mechanism 10 will automatically move downward and reset under the action of gravity.

[0069] It is conceivable that the method of driving the transmission member 410 to reset to the initial position can also be other structures. For example, a spring or a torsion spring is set between the slide rail seat 100 and the transmission member 410. When one end of the transmission member 410 rotates in a direction away from the sliding assembly 200, the spring continuously applies force to rotate the transmission member 410 toward the sliding assembly 200.

[0070] In an embodiment, the sliding assembly 200 is provided with a third pushing surface 630. When the sliding assembly 200 slides backward, the third pushing surface 630 pushes one end of the transmission member 410 to rotate. The sliding assembly 200 pushes the transmission member 410 to rotate via the third pushing surface 630, which has a simple structure and is easy to implement. Specifically, the third pushing surface 630 is inclined relative to the front-to-back direction and is provided on the sliding assembly 200. It is conceivable that the third pushing surface 630 can also be provided on the transmission member 410; or the third pushing surface 630 can be provided on both the sliding assembly 200 and the transmission member 410. Specifically, the third pushing surface 630 is provided on the rotating member 212 of the mating structure 210.

[0071] In an embodiment, the locking reset member 430 is disposed between the rail seat 100 and the locking member 420. When the locking member 420 is in the locked state, the locking reset member 430 applies a force to switch the locking member 420 to the unlocked state. The locking reset member 430 is provided so that when the linkage structure 300 is reset, the linkage structure 300 no longer blocks the locking member 420 from switching to the unlocked state. At this time, the locking reset member 430 can rotate and reset the locking member 420. Specifically, the locking reset member 430 is a torsion spring, one end of which abuts the rail seat 100, and the other end of which abuts the locking member 420, driving the locking member 420 to rotate. It is conceivable that the locking reset member 430 can also be a spring, with both ends of the spring abutting the rail seat 100 and the locking member 420, respectively, so that the locking member 420 rotates and switches to the unlocked state.

[0072] Specifically, the locking member 420 and the transmission member 410 have the same rotation axis, and both share a common rotation shaft.

[0073] Specifically, a certain amount of friction exists at the pivotal connection between the rotating member 212 and the sliding member 211, preventing the rotating member 212 from rotating freely relative to the sliding member 211, allowing the rotating member 212 to maintain its position. The guide bar 121 has structures at both ends that block the mating structure 210, limiting the forward and backward sliding range of the mating structure 210.

[0074] Specifically, the rail base 100 includes a main body 110 and a protective shell 120. A guide bar 121 is disposed on the protective shell 120. Guide grooves are provided on both the sliding member 211 and the rotating member 212 of the mating structure 210. The guide bar 121 extends through the guide grooves, and a rotation clearance groove 122 is provided at the rear of the guide bar 121. When the rotating member 212 moves rearward to face the rotation clearance groove 122, the guide groove on the guide bar 121 separates from the groove wall of the rotation clearance groove 122, allowing the rotating member 212 to rotate relative to the sliding member 211, thereby allowing the connecting portion 221 to connect to or disconnect from the slot 2121. A buffer is located between the main body 110 and the protective shell 120.

[0075] Specifically, a transmission give way groove 123 and a locking give way groove 124 are provided on the protective shell 120. The transmission give way groove 123 is opposite to the transmission member 410, and the locking give way groove 124 is opposite to the locking member 420. The transmission give way groove 123 is used to give way to the rotation of the transmission member 410, so as to facilitate the abutment between the transmission member 410 and the matching structure 210; the locking give way groove 124 is opposite to the locking member 420, and the locking give way groove 124 is used to give way to the rotation of the locking member 420, so as to facilitate the abutment between the locking member 420 and the locking matching structure 210.

[0076] Specifically, the matching structure 210 is connected to the buffer, and the buffer transmits buffering to the inner rail 220 through the matching structure 210 .

[0077] Specifically, the rail base 100 is provided with a receiving hole along the vertical direction, and the linkage structure 300 is slidably provided in the receiving hole, so that the linkage structure 300 can move vertically relative to the rail base 100. It is conceivable that the linkage structure 300 can achieve vertical movement relative to the rail base 100 through other structures, for example, the linkage structure 300 is provided with a guide sleeve, the rail base 100 is provided with a guide post along the vertical direction, and the guide sleeve is sleeved on the guide post to achieve vertical movement of the linkage structure 300 relative to the rail base 100; or the rail base 100 is provided with a slide groove along the vertical direction, and the linkage structure 300 is provided with a slider portion, which is slidably provided in the slide groove.

[0078] Specifically, the specific working process of the slide rail device is as follows: when the drawer is opened, the inner rail 220 connected to the drawer slides backward with the drawer, and the inner rail 220 drives the corresponding matching structure 210 to slide backward through the connecting portion 221. The rotating member 212 of the matching structure 210 pushes the corresponding transmission member 410 to rotate through the third pushing surface 630, and the transmission member 410 pushes the corresponding linkage structure 300 to move vertically outward through the second pushing surface 620. The linkage structure 300 links the linkage structures 300 of the remaining slide rail mechanisms 10 to move vertically inward, and the locks of the remaining slide rail mechanisms 10 are locked through the first pushing surface 610. The stop member 420 rotates from the unlocked state to the locked state so that the locking member 420 abuts the rotating member 212, so that the matching structure 210 cannot move backward, thereby locking the sliding assembly 200 of the remaining slide rail mechanism 10; as the inner rail 220 continues to slide backward, when the rotating member 212 moves to the rotating yield groove 122, the connecting portion 221 of the inner rail 220 causes the rotating member 212 to rotate until the connecting portion 221 disengages backward from the slot 2121 of the rotating member 212, and then the inner rail 220 is separated from the matching structure 210, and then the inner rail 220 continues to slide backward, thereby fully opening the drawer.

[0079] When the drawer moves forward and closes, the inner rail 220 slides forward accordingly. The connecting portion 221 of the inner rail 220 first engages the engaging slot 2121 of the rotating member 212. The rotating member 212 resets and rotates at the rotational clearance slot 122. The inner rail 220 then drives the matching structure 210 to slide forward and reset synchronously. The buffer structure 700 buffers the movement of the matching structure 210. After the matching structure 210 separates from the transmission member 410, the linkage structure 300 of the slide rail device resets and moves under the action of the elastic reset member 800 and gravity, and the second pushing surface 620 pushes each transmission member 410 to reset and rotate. The locking members 420 of the remaining slide rail mechanisms 10 rotate and reset to the unlocked state under the action of the locking reset member 430. At this time, the locking members 420 are no longer located within the sliding track of the matching structure 210. At this time, any of the drawers can be opened.

[0080] Specifically, the sliding assembly 200 further includes a middle rail, which is arranged between the rail seat 100 and the inner rail 220. The middle rail is provided so that the sliding distance of the inner rail 220 can be longer, which is convenient for adapting to larger drawers.

[0081] Specifically, the inner rail 220 is welded with a shifting pin, which forms a connecting portion 221 . The shifting pin is vertically arranged, and the slot 2121 of the rotating member 212 passes through the upper wall of the rotating member 212 , making it convenient for the shifting pin to rotate relative to the slot 2121 .

[0082] Specifically, the connecting member 500 is a round rod. It is conceivable that the connecting member 500 can also be a square rod.

[0083] In some embodiments, since the length of the connecting member 500 is prone to dimensional errors, in order to make the connection and transmission effect between the connecting member 500 and the linkage structure 300 more stable, the following improvements are made:

[0084] The linkage structure 300 includes a linkage seat 310, an adjusting member 320 and a pushing member 330. The linkage seat 310 is vertically provided with a plug-in hole 311. The pushing member 330 is vertically slidably arranged on the linkage seat 310. The pushing member 330 is located at one end of the plug-in hole 311. One end of the connecting member 500 is passed through the plug-in hole 311. The adjusting member 320 is arranged between the linkage seat 310 and the pushing member 330 and is used to adjust the vertical position of the pushing member 330 relative to the linkage seat 310. One end of the connecting member 500 is in contact with the pushing member 330. When assembling the connecting member 500 with the linkage structure 300, first insert one end of the connecting member 500 into the plug-in through hole 311, and then the adjusting member 320 adjusts the position of the pushing member 330 relative to the linkage seat 310, so that the pushing member 330 abuts against one end of the connecting member 500, so that the two ends of the connecting member 500 can be firmly connected to the two linkage structures 300, so that the transmission effect is more stable when transmitting between adjacent slide rail mechanisms 10.

[0085] Specifically, the linkage seat 310 is provided with a sliding hole, and the push member 330 is slidably inserted into the sliding hole, so that the push member 330 can slide relative to the linkage seat 310. The adjusting member 320 is rotatably connected to the linkage seat 310. The adjusting member 320 is provided with a vortex groove 321, and the push member 330 is provided with a matching block 331. The matching block 331 is accommodated in the vortex groove 321. The vortex groove 321 is a two-dimensional groove with a gradually increasing spiral radius. The matching block 331 abuts against the groove wall of the vortex groove 321. When the adjusting member 320 rotates, the groove wall of the vortex groove 321 abuts and pushes the matching block 331, so that the push member 330 can achieve a vertical adjustment position.

[0086] Specifically, the adjusting member 320 is provided with a knob portion to facilitate the rotation of the adjusting member 320. Two matching blocks 331 are provided to reduce the risk of damage.

[0087] It is conceivable that the linkage seat 310 may be provided with a guide post, the push member 330 may be provided with a guide hole, and the guide post may be passed through the guide hole, so that the push member 330 can slide vertically relative to the linkage seat 310. The adjustment member 320 may also have other structures. For example, the adjustment member 320 may be a screw, the linkage seat 310 may be provided with a threaded through hole, the screw may be threadedly connected to the threaded through hole, one end of the screw may abut against one end of the connector 500, locking the connector 500 relative to the linkage structure 300, that is, the connector 500 may be securely connected to the linkage structure 300. Preferably, the screw is provided vertically.

[0088] Specifically, the linkage seat 310 is provided with a limiting block 312 , and the pushing member 330 is provided with a limiting groove 332 . The limiting block 312 is accommodated in the limiting groove 332 to limit the movement range of the pushing member 330 .

[0089] It is conceivable that the linkage structure 300 may also be a one-piece piece.

[0090] Specifically, the present invention further discloses a drawer cabinet that adopts the above-mentioned slide rail device. Due to the adoption of the above-mentioned slide rail device, the drawers of the drawer cabinet cannot be opened at the same time, thereby reducing the risk of the drawer cabinet tipping over.

[0091] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do 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.

[0092] While 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 invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A slide rail device, used in a drawer cabinet, characterized in that: include: At least two vertically arranged slide rail mechanisms (10), the slide rail mechanism (10) comprising a slide rail seat (100), a sliding assembly (200), a linkage structure (300) and a locking assembly (400), the sliding assembly (200) being slidably arranged on the slide rail seat (100) along the front-rear direction, the linkage structure (300) being movably arranged on the slide rail seat (100) along the vertical direction, the locking assembly (400) comprising a transmission member (410), a locking member (420) and a locking reset member (430), the transmission member (410) being movably arranged on the slide rail seat (100) and being capable of moving toward or away from the sliding assembly (200), the locking member (420) being movably arranged on the slide rail seat (100) and having a locked state and an unlocked state; in the locked state, The locking member (420) can stop the corresponding sliding assembly (200) from sliding backward; in the unlocked state, the locking member (420) is located outside the moving track of the sliding assembly (200); the locking reset member (430) is used to make the locking member (420) have a tendency to switch to the unlocked state; when the sliding assembly (200) slides backward, the transmission member (410) can move in a direction away from the sliding assembly (200); when the transmission member (410) moves in a direction away from the sliding assembly (200), it can drive the linkage structure (300) to move vertically outward; when the linkage structure (300) moves vertically inward relative to the slide rail seat (100), it can drive the locking member (420) to switch from the unlocked state to the locked state; The two locking members (420) of two adjacent slide rail mechanisms (10) are linked via a connecting member (500), and when the linkage structure (300) of one of the slide rail mechanisms (10) moves vertically outward, it can drive the linkage structure (300) of the other slide rail mechanism (10) to move vertically inward.

2. The slide rail device according to claim 1, wherein: The locking member (420) is pivotally connected to the slide rail seat (100); the locking member (420) is provided with a stop portion (421); the sliding assembly (200) is provided with a matching structure (210); in the locked state, the stop portion (421) abuts against the matching structure (210); in the unlocked state, the stop portion (421) is located outside the moving track of the matching structure (210).

3. The slide rail device according to claim 2, wherein: The rotation axis of the locking member (420) is arranged vertically, and the locking member (420) and / or the linkage structure (300) are provided with a first pushing surface (610), and the first pushing surface (610) is inclined relative to the rotation plane of the locking member (420), and the linkage structure (300) pushes the locking member (420) to rotate through the first pushing surface (610).

4. The slide rail device according to claim 2, wherein: The slide rail mechanism (10) further comprises a buffer structure (700), wherein the buffer structure (700) is arranged between the matching structure (210) and the slide rail seat (100) and buffers the forward and backward sliding of the matching structure (210).

5. The slide rail device according to claim 2, wherein: The sliding assembly (200) further comprises an inner rail (220), wherein the inner rail (220) is slidably arranged on the slide rail seat (100) along a front-rear direction, and the inner rail (220) is provided with a connecting portion (221). In the locked state, the connecting portion (221) is fixed relative to the matching structure (210); in the unlocked state, the connecting portion (221) can be separated from the matching structure (210).

6. The slide rail device according to claim 1, wherein: The transmission member (410) is pivotally connected to the slide rail seat (100) and the rotation axis is arranged vertically. The transmission member (410) and / or the linkage structure (300) are provided with a second pushing surface (620). The second pushing surface (620) is inclined relative to the rotation plane of the transmission member (410). The transmission member (410) pushes the linkage structure (300) to move via the second pushing surface (620).

7. The slide rail device according to claim 1, wherein: Two linkage structures (300) are provided, and the two linkage structures (300) are respectively arranged on the upper and lower sides of the slide rail mechanism (10); between the two adjacent slide rail mechanisms (10), the linkage structure (300) on the upper side of the slide rail mechanism (10) relative to the lower side and the linkage structure (300) on the lower side of the slide rail mechanism (10) relative to the upper side are connected by the connecting member (500) and can move vertically together; in the same slide rail mechanism (10), when one of the linkage structures (300) is linked by the connecting member (500) and moves vertically inward, the other linkage structure (300) can move vertically outward.

8. The slide rail device according to claim 7, characterized in that: An elastic reset member (800) is provided between the two linkage structures (300) of the slide rail mechanism (10); when the linkage structure (300) moves inward in the vertical direction, two ends of the elastic reset member (800) respectively abut against the two linkage structures (300) and can exert an elastic reset force that causes the linkage structure (300) to move outward in the vertical direction.

9. The slide rail device according to claim 6, wherein: The sliding assembly (200) and / or the transmission member (410) is provided with a third pushing surface (630), and when the sliding assembly (200) slides backward, the third pushing surface (630) pushes one end of the transmission member (410) to rotate.

10. A drawer cabinet, characterized in that: The slide rail device comprises the slide rail device according to any one of claims 1 to 9.

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