Sliding door buffer mechanism, sliding door assembly and cabinet

Abstract

The embodiment of the utility model provides a sliding door buffering mechanism, a sliding door assembly and a cabinet. The sliding door buffering mechanism comprises a buffering device and a sliding rail. The buffering device comprises a frame, a damping structure and two movable buckles, wherein the damping structure and the two movable buckles are arranged in the frame. The two movable buckles are arranged in the first direction in a spaced mode and slidably connected to the frame. The sliding rail is provided with a limiting structure, and the limiting structure is used for limiting one of the two movable buckles so that the two movable buckles can relatively slide when the frame slides. The damping structure is arranged between the two movable buckles and comprises a shell and two damping pieces which are symmetrically arranged and telescopically connected to the two ends of the shell in the first direction, the shell is fixedly connected to the frame, and the ends, away from the shell, of the two damping pieces are connected with the two movable buckles in a one-to-one correspondence mode; the damping piece is used for providing resistance to buffer relative sliding of the two movable buckles. According to the sliding door buffering mechanism, two-way buffering of the sliding door can be achieved by arranging one buffering device, the installation procedure can be simplified, and the installation cost is reduced.

Description

Technical Field

[0001] The present application belongs to the field of furniture technology, and specifically relates to a sliding door buffer mechanism, a sliding door assembly and a cabinet. Background Art

[0002] Sliding door refers to a movable door, also known as a sliding door. When closing the door, the sliding door will quickly hit the door frame under the action of inertia and produce a loud banging sound.

[0003] In the prior art, in order to buffer the impact force when closing the door, the sliding door is usually provided with a buffer, so as to buffer the movement impact and slow down the movement speed. However, the existing buffer only has a one-way buffering function. For a sliding door that needs to move and close in both directions, two buffers need to be provided to achieve two-way buffering, which will make the installation process of the sliding door complicated and increase the installation cost. Utility Model Content

[0004] The present application aims to provide a sliding door buffer mechanism, a sliding door assembly and a cabinet, so as to solve the problem that the existing sliding door needs to be provided with two buffers to achieve two-way buffering, which leads to complicated installation process of the sliding door and increased installation cost.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, the present application discloses a sliding door buffer mechanism, which is applied to a sliding door, wherein the moving direction of the sliding door is a first direction, and the sliding door buffer mechanism comprises: a buffer device and a slide rail;

[0007] The buffer device comprises a frame, a damping structure and two movable buckles arranged in the frame, wherein the frame is fixedly connected to the sliding door and slidably connected to the slide rail;

[0008] The two movable buckles are spaced apart along the first direction and are both slidably connected to the frame; the slide rail is provided with a limiting structure, and the limiting structure is used to limit one of the two movable buckles, so that the two movable buckles slide relative to each other when the frame slides;

[0009] The damping structure is arranged between the two movable buckles, and the damping structure comprises a shell and two damping members symmetrically arranged and telescopically connected to the two ends of the shell along the first direction, the shell is fixedly connected to the frame, and the ends of the two damping members facing away from the shell are respectively connected to the two movable buckles one by one, and the damping members are used to provide resistance to buffer the relative sliding of the two movable buckles.

[0010] Optionally, the housing contains a lubricating medium, and the damping element comprises: a damping rod, a sealing plug and a one-way valve;

[0011] The damping rod is slidably connected in the housing;

[0012] The sealing plug is arranged between the damping rod and the housing so as to seal the damping rod and the housing;

[0013] The one-way valve is arranged at one end of the damping rod away from the movable buckle, and the one-way valve is in clearance fit with the housing;

[0014] The one-way valve has an open state and a closed state. In the open state, the lubricating medium passes through the inside of the one-way valve at a first flow rate, and the damping rod extends relative to the housing. In the closed state, the lubricating medium passes through the gap between the one-way valve and the housing at a second flow rate, and the damping rod retracts relative to the housing, and the second flow rate is less than the first flow rate.

[0015] Optionally, the one-way valve comprises: a valve core, a valve plate and a valve plug;

[0016] The valve plug is arranged at an end of the damping rod away from the movable buckle;

[0017] The valve core is sleeved on the damping rod and is in clearance fit with the housing. The valve core is provided with a through hole, and the through hole is used for the lubricating medium to pass through.

[0018] The valve sheet is arranged between the valve core and the valve plug, and the valve sheet is used to cover the through hole;

[0019] In the closed state, the valve plate blocks the through hole so that the lubricating medium passes through the gap between the valve core and the housing at the second flow rate; in the open state, the valve plate releases the blocking of the through hole so that the lubricating medium passes through the through hole at the first flow rate.

[0020] Optionally, the damping member further comprises: an oil seal seat and a spring;

[0021] The oil seal seat is sleeved on the damping rod, and the oil seal seat is located between the sealing plug and the one-way valve;

[0022] An air cavity is formed between the oil seal seat and the sealing plug;

[0023] The spring is sleeved on the damping rod and is located in the air cavity. The spring can be extended and retracted along the first direction to adjust the volume of the air cavity.

[0024] Optionally, the shell is provided with air holes at positions corresponding to the air cavity.

[0025] Optionally, the frame is provided with guide grooves, and the guide grooves are provided in two groups, and the two groups of guide grooves are symmetrically arranged along the center of the frame;

[0026] One of the movable buckles is slidably connected to a group of the guide grooves.

[0027] Optionally, the frame includes a first bottom wall and a first side wall disposed vertically;

[0028] The guide groove is arranged on the first side wall, and the guide groove includes a straight section and a bent section which are arranged in sequence along the first direction and are connected to each other, and the straight section is close to the center of the first side wall;

[0029] One end of the bent section away from the straight section extends toward the first bottom wall.

[0030] Optionally, the movable buckle comprises: a body and a guide column;

[0031] The guide post is disposed on the body, and the guide post is slidably connected to the guide slot so that the position of the body relative to the guide slot changes;

[0032] A limiting portion is disposed on a side of the main body away from the first bottom wall, and the limiting portion is used to cooperate with the limiting structure to limit the main body.

[0033] Optionally, the guide column comprises a first guide column and a second guide column, the first guide column and the second guide column are arranged at intervals along the extension direction of the guide groove, and the second guide column is close to the damping member;

[0034] When the first guide post slides to the bending section, the limiting portion is disconnected from the limiting structure to release the limiting of the main body.

[0035] Optionally, the sliding door buffer mechanism further comprises an elastic member, which is arranged in parallel with the damping structure and is located between the two movable buckles;

[0036] The movable buckle also includes: a first connecting part and a second connecting part, the first connecting part and the second connecting part are both arranged on a side of the main body close to the damping member, and the first connecting part and the second connecting part are movably connected to the damping member and the elastic member respectively.

[0037] Optionally, the first connecting portion is a first card slot, and the second connecting portion is a second card slot;

[0038] The damping member is provided with a first connector at one end close to the movable buckle, and the first connector is rotatably engaged with the first engaging groove;

[0039] A second connector is disposed at one end of the elastic member close to the movable buckle, and the second connector is rotatably engaged with the second engaging groove.

[0040] Optionally, the movable buckle includes a first movable buckle and a second movable buckle;

[0041] The limiting structure comprises a first limiting member and a second limiting member, the first limiting member and the second limiting member are arranged on the slide rail at intervals along the first direction, and the first limiting member and the second limiting member are respectively used to be matched and connected with the first movable buckle and the second movable buckle;

[0042] When the first position-limiting member is connected to the first movable buckle in a mating manner, or when the second position-limiting member is connected to the second movable buckle in a mating manner, the first movable buckle and the second movable buckle slide relative to each other when the frame slides.

[0043] Optionally, the sliding door buffer mechanism further includes a sliding block;

[0044] The slider is fixedly connected to the frame and slidably connected to the slide rail, and the slider is used to be connected to the sliding door.

[0045] In a second aspect, the present application further discloses a sliding door assembly, the sliding door assembly comprising: a door frame, a sliding door, and any one of the sliding door buffer mechanisms described above;

[0046] The sliding door is fixedly connected to the frame;

[0047] The slide rail is fixedly connected to the door frame. When the sliding door is pushed along the first direction, the frame slides relative to the slide rail and drives the damping structure to move to achieve buffering.

[0048] In a third aspect, the present application further discloses a cabinet, which includes the above-mentioned sliding door assembly.

[0049] In an embodiment of the present application, the sliding door buffer mechanism includes: a buffer device and a slide rail; the buffer device includes a frame, a damping structure and two movable buckles arranged in the frame, the frame is fixedly connected to the sliding door and slidably connected to the slide rail; the two movable buckles are arranged at intervals along the first direction and are both slidably connected to the frame; the slide rail is provided with a limiting structure, the limiting structure is used to limit one of the two movable buckles so that the two movable buckles slide relative to each other when the frame slides; the damping structure is arranged between the two movable buckles, the damping structure includes a shell and two damping members symmetrically arranged and telescopically connected to the two ends of the shell along the first direction, the shell is fixedly connected to the frame, and the ends of the two damping members facing away from the shell are respectively connected to the two movable buckles one by one, and the damping members are used to provide resistance to buffer the relative sliding of the two movable buckles. On the one hand, since the damping structure is provided, when the sliding door is pushed, the damping structure can provide resistance, thereby buffering the movement impact of the sliding door, slowing down the movement speed of the sliding door, and effectively avoiding the problem that the sliding door quickly hits the door frame under the action of inertia and produces a huge impact sound. On the other hand, since the damping structure includes a shell and two damping members that are symmetrically arranged and telescopically connected to the shell, the damping structure can provide resistance in two directions, thereby achieving two-way buffering. That is, the sliding door buffering mechanism of the embodiment of the present application can achieve two-way buffering of the sliding door by providing a buffer device, which is conducive to simplifying the installation process and reducing the installation cost.

[0050] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0052] Figure 1 This is one of the structural schematic diagrams of a sliding door buffer mechanism provided in an embodiment of the present application;

[0053] Figure 2 It is one of the structural schematic diagrams of the buffer device provided in the embodiment of the present application;

[0054] Figure 3 This is the second structural schematic diagram of the buffer device provided in the embodiment of the present application;

[0055] Figure 4 It is one of the structural schematic diagrams of the damping structure provided in the embodiment of the present application;

[0056] Figure 5This is the second structural schematic diagram of the damping structure provided in the embodiment of the present application;

[0057] Figure 6 is a schematic structural diagram of a damping member of a damping structure provided in an embodiment of the present application;

[0058] Figure 7 It is a schematic diagram of the structure of the movable buckle provided in the embodiment of the present application;

[0059] Figure 8 is a schematic structural diagram of an end cover and a first position-limiting member provided in an embodiment of the present application;

[0060] Fig. 9 is a schematic structural diagram of a second position-limiting member provided in an embodiment of the present application;

[0061] Fig.10 This is one of the working schematic diagrams of the sliding door assembly provided in the embodiment of the present application;

[0062] Fig.11 yes Fig.10 A partial enlarged view of

[0063] Fig.12 This is the second working schematic diagram of the sliding door assembly provided in the embodiment of the present application;

[0064] Fig.13 yes Fig.12 A partial enlarged view of

[0065] Fig.14 This is the third working schematic diagram of the sliding door assembly provided in the embodiment of the present application;

[0066] Fig.15 yes Fig.14 A partial enlarged view of

[0067] Fig.16 This is the fourth working schematic diagram of the sliding door assembly provided in the embodiment of the present application;

[0068] Fig.17 yes Fig.16 A partial enlarged view of

[0069] Fig.18 This is the fifth working schematic diagram of the sliding door assembly provided in the embodiment of the present application;

[0070] Fig.19 yes Fig.18 A partial enlarged view of

[0071] Fig. 20 This is the sixth working schematic diagram of the sliding door assembly provided in the embodiment of the present application;

[0072] Fig.21 yes Fig. 20A partial enlarged view of

[0073] Fig. 22 This is the seventh working schematic diagram of the sliding door assembly provided in the embodiment of the present application;

[0074] Fig.23 yes Fig. 22 A partial enlarged view of

[0075] Fig.24 This is the eighth working schematic diagram of the sliding door assembly provided in the embodiment of the present application;

[0076] Fig.25 yes Fig.24 A partial enlarged view of .

[0077] Reference numerals: 1. buffer device, 11. frame, 111. guide groove, 1111. straight section, 1112. bending section, 12. damping structure, 121. housing, 1211. air hole, 122. damping rod, 123. sealing plug, 124. one-way valve, 1241. valve core, 12411. through hole, 1242. valve plate, 1243. valve plug, 125. oil seal seat, 1251. stopper, 1252. oil seal, 126. spring, 127. first connector, 128. first damping member, 129. second damping member, 13. movable buckle, 131 .Main body, 132.Guide column, 1321.First guide column, 1322.Second guide column, 133.Limiting part, 134.First connecting part, 135.Second connecting part, 136.First movable buckle, 137.Second movable buckle, 14.Elastic member, 141.Second connecting head, 15.Slider, 16.Connecting block, 2.Slide rail, 21.End cover, 22.First limiting member, 221.First fixing part, 222.First limiting protrusion, 23.Second limiting member, 231.Second fixing part, 232.Second limiting protrusion, 24.Slide groove, X.First direction. DETAILED DESCRIPTION

[0078] The embodiments of the utility model will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0079] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0080] 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", "axial", "radial", "circumferential" and the like 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 referred device or element 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.

[0081] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] An embodiment of the present application provides a sliding door buffer mechanism, and the sliding door buffer mechanism of the present application is described in detail below with reference to the accompanying drawings.

[0083] Reference Figure 1 , showing a schematic diagram of the structure of a sliding door buffer mechanism provided in an embodiment of the present application, referring to Figures 2 to 3 , showing a schematic diagram of the structure of the buffer device provided in an embodiment of the present application, referring to Figures 4 to 5 , showing a schematic diagram of the structure of the buffer device provided in an embodiment of the present application, referring to Figure 6 , showing a schematic diagram of the structure of the damping member of the damping structure provided in an embodiment of the present application, with reference to Figure 7 , showing a schematic diagram of the structure of the movable buckle provided in the embodiment of the present application, referring to Figure 8 , showing a schematic diagram of the structure of the end cover and the first limiter provided in the embodiment of the present application, referring to Fig. 9 , showing a schematic diagram of the structure of the second limiter provided in an embodiment of the present application, referring to Figures 10 to 25, showing a working schematic diagram of the sliding door assembly provided in an embodiment of the present application.

[0084] like Figures 1 to 3 As shown, the present application provides a sliding door buffer mechanism, which is applied to the sliding door, and the moving direction of the sliding door is a first direction X. The sliding door buffer mechanism includes: a buffer device 1 and a slide rail 2; the buffer device 1 includes a frame 11 and a damping structure 12 and two movable buckles 13 arranged in the frame 11, the frame 11 is fixedly connected to the sliding door and slidably connected to the slide rail 2; the two movable buckles 13 are arranged at intervals along the first direction X and are both slidably connected to the frame 11; the slide rail 2 is provided with a limiting structure, the limiting structure is used to limit one of the two movable buckles 13, so that the two movable buckles 13 slide relative to each other when the frame 11 slides; the damping structure 12 is arranged between the two movable buckles 13, the damping structure 12 includes a shell 121 and two damping members symmetrically arranged and telescopically connected to the two ends of the shell 121 along the first direction X, the shell 121 is fixedly connected to the frame 11, and the ends of the two damping members facing away from the shell 121 are respectively connected to the two movable buckles 13 one by one, and the damping members are used to provide resistance to buffer the relative sliding of the two movable buckles 13.

[0085] In the embodiment of the present application, on the one hand, since the damping structure 12 is provided, when the sliding door is pushed, the damping structure 12 can provide resistance, thereby buffering the moving impact of the sliding door, slowing down the moving speed of the sliding door, and effectively avoiding the problem that the sliding door quickly hits the door frame under the action of inertia and produces a huge impact sound. On the other hand, since the damping structure 12 includes two symmetrically arranged damping members, the damping structure 12 can provide resistance in two directions, thereby achieving two-way buffering. That is, the sliding door buffering mechanism of the embodiment of the present application can achieve two-way buffering of the sliding door by providing a buffer device 1, which is conducive to simplifying the installation process and reducing the installation cost.

[0086] It should be noted that the function of the limiting structure is to limit one of the two movable buckles 13. Specifically, during the sliding process of the frame 11 relative to the slide rail 2, the limiting structure provided on the slide rail 2 only limits one of the movable buckles 13 provided in the frame 11, while the other movable buckle 13 provided in the frame 11 continues to slide relative to the slide rail 2 together with the frame 11, so that the two movable buckles 13 slide relative to each other.

[0087] In practical applications, such as Figure 1 and 2As shown, the movable buckle 13 on the left side is the first movable buckle 136, the movable buckle 13 on the right side is the second movable buckle 137, the damping member on the left side is the first damping member 128, and the damping member on the right side is the second damping member 129. Taking the sliding door moving to the right as an example, in the initial stage of the sliding door, the external force pushes the sliding door to drive the frame 11 to move to the right, and since the first movable buckle 136 is limited, the first movable buckle 136 and the second movable buckle 137 gradually move away. In the final stage of the sliding door, since the second movable buckle 137 is limited, the first movable buckle 136 and the second movable buckle 137 gradually move closer, and the second damping member 129 provides resistance in the opposite direction of the sliding door to achieve rightward buffering. Taking the sliding door moving to the left as an example, in the initial stage of the sliding door, the external force pushes the sliding door to drive the frame 11 to move to the left, and since the second movable buckle 137 is limited, the second movable buckle 137 and the first movable buckle 136 gradually move away. At the end of the sliding door's movement, since the first movable buckle 136 is limited, the second movable buckle 137 gradually moves closer to the first movable buckle 136, and the first damping member 128 provides resistance in the opposite direction of the sliding door's movement to achieve leftward buffering.

[0088] It should be noted that the sliding door buffer mechanism of the present application can be used in application scenarios with one sliding door, or in application scenarios with two or more sliding doors. The sliding door buffer mechanism corresponding to the drawings of the present application is suitable for application scenarios with two sliding doors. Specifically, the slide rail 2 includes two slide grooves 24, each of which is slidably connected to a buffer device 1. One buffer device 1 is connected to one sliding door, thereby achieving bidirectional buffering of the corresponding sliding door.

[0089] In practical applications, the buffer device 1 further includes an elastic member 14, which is disposed in the frame 11 and parallel to the damping structure 12. The elastic member 14 is located between the two movable buckles 13 and is respectively connected to the two movable buckles 13. In this way, through the relative sliding of the two movable buckles 13, the elastic member 14 can achieve the functions of stretching to store force and retracting to release elastic force. Specifically, Figure 1 and 2 As shown, taking the sliding door moving to the right as an example, the movable buckle 13 located on the left is the first movable buckle 136, and the movable buckle 13 located on the right is the second movable buckle 137. In the initial stage of the sliding door's movement, the external force pushes the sliding door to move to the right. Since the first movable buckle 136 is limited, the first movable buckle 136 and the second movable buckle 137 gradually move away from each other, and the elastic member 14 is stretched to complete the accumulation of force. In the middle stage of the sliding door's movement, under the action of inertia, the sliding door continues to move forward. During this process, the elastic member 14 always maintains a state of accumulating force. In the final stage of the sliding door's movement, since the second movable buckle 137 is limited, the elastic member 14 retracts to release the elastic force, thereby driving the first movable buckle 136 and the second movable buckle 137 to gradually move closer, pushing the sliding door to continue moving until it stops.

[0090] It should be noted that the elastic member 14 in the embodiment of the present application is a tension spring 126 , and those skilled in the art may select tension springs 126 of different specifications as needed to adapt to different application scenarios.

[0091] like Figures 4 to 6 As shown, the housing 121 contains a lubricating medium, and the damping member includes: a damping rod 122, a sealing plug 123 and a one-way valve 124; the damping rod 122 is slidably connected in the housing 121; the sealing plug 123 is arranged between the damping rod 122 and the housing 121, so that the damping rod 122 and the housing 121 are sealed and connected; the one-way valve 124 is arranged at the end of the damping rod 122 away from the movable buckle 13, and the one-way valve 124 and the housing 121 are clearance-matched; the one-way valve 124 has an open state and a closed state. In the open state, the lubricating medium passes through the inside of the one-way valve 124 at a first flow rate, and the damping rod 122 extends relative to the housing 121; in the closed state, the lubricating medium passes through the gap between the one-way valve 124 and the housing 121 at a second flow rate, and the damping rod 122 retracts relative to the housing 121, and the second flow rate is less than the first flow rate.

[0092] In the embodiment of the present application, since a one-way valve 124 is provided, the one-way valve 124 has an open state and a closed state. In the open state, the lubricating medium in the housing 121 passes through the inside of the one-way valve 124 at a first flow rate, and the damping rod 122 extends relative to the housing 121; in the open state, the lubricating medium in the housing 121 passes through the gap between the one-way valve 124 and the housing 121 at a second flow rate, and the damping rod 122 retracts relative to the housing 121, and the second flow rate is less than the first flow rate. In this way, in the process of the damping member extending relative to the housing 121, the one-way valve 124 is in an open state, the resistance is small or even almost no resistance, and the damping member can be extended quickly, thereby reducing the thrust required for the sliding door to open, and facilitating the opening of the sliding door. In the process of the damping member retracting relative to the housing 121, the one-way valve 124 is in a closed state, the resistance is large, and the damping member can retract slowly, thereby buffering the moving impact of the sliding door and slowing down the moving speed of the sliding door, effectively avoiding the problem that the sliding door quickly hits the door frame under the action of inertia and produces a huge impact sound.

[0093] In actual application, taking the sliding door moving to the right as an example, in the initial stage of the sliding door moving, the external force pushes the sliding door to drive the frame 11 to move to the right. Since the first movable buckle 136 is limited, the first movable buckle 136 and the second movable buckle 137 gradually move away from each other, and the first damping member 128 gradually and quickly extends relative to the housing 121. In the final stage of the sliding door moving, since the second movable buckle 137 is limited, the first movable buckle 136 and the second movable buckle 137 gradually move closer together, and the second damping member 129 gradually and slowly retracts relative to the housing 121, thereby providing resistance in the opposite direction of the sliding door moving. Taking the sliding door moving to the left as an example, in the initial stage of the sliding door moving, the external force pushes the sliding door to drive the frame 11 to move to the left. Since the second movable buckle 137 is limited, the second movable buckle 137 and the first movable buckle 136 gradually move away from each other. In this process, the second damping member 129 gradually and quickly extends relative to the housing 121. At the end of the sliding door movement, since the first movable buckle 136 is limited, the second movable buckle 137 gradually moves closer to the first movable buckle 136, and the first damping member 128 gradually and slowly retracts relative to the housing 121, thereby providing resistance in the opposite direction of the sliding door movement.

[0094] It should be noted that the lubricating medium of the embodiment of the present application includes but is not limited to lubricating oil, and those skilled in the art can select different types of lubricating medium according to actual needs. It is understandable that when lubricating oil is used, since the damping rod 122 and the one-way valve 124 are in the lubricating oil for a long time, wear and fatigue can be reduced, which is beneficial to increase the service life of the damping structure 12 and reduce the operation and maintenance cost of the buffer device 1. In addition, the embodiment of the present application does not limit the matching clearance between the one-way valve 124 and the housing 121, and those skilled in the art can make adaptive adjustments according to the required resistance.

[0095] In some optional embodiments of the present application, the one-way valve 124 includes: a valve core 1241, a valve plate 1242 and a valve plug 1243; the valve plug 1243 is arranged at the end of the damping rod 122 away from the movable buckle 13; the valve core 1241 is sleeved on the damping rod 122 and is gap-matched with the housing 121, and the valve core 1241 is provided with a through hole 12411, and the through hole 12411 is used for allowing the lubricating medium to pass through; the valve plate 1242 is arranged between the valve core 1241 and the valve plug 1243, and the valve plate 1242 is used to block the through hole 12411; in the closed state, the valve plate 1242 blocks the through hole 12411 so that the lubricating medium passes through the gap between the valve core 1241 and the housing 121 at a second flow rate; in the open state, the valve plate 1242 releases the blocking of the through hole 12411 so that the lubricating medium passes through the through hole 12411 at a first flow rate.

[0096] In the embodiment of the present application, since the valve core 1241 is provided, the valve core 1241 is provided with a through hole 12411. When the one-way valve 124 is in an open state, the lubricating medium can flow through the through hole 12411, so that the damping rod 122 can be quickly extended relative to the housing 121 with less resistance or even without resistance. Since the valve plate 1242 is provided, the valve plate 1242 is provided between the valve core 1241 and the valve plug 1243. Specifically, there is a certain interval between the valve plug 1243 and the valve core 1241, so that the valve plate 1242 can move along the first direction X. In this way, in the open state, under the action of the lubricating medium, the valve plate 1242 abuts against at least part of the valve plug 1243. At this time, the valve plate 1242 releases the shielding of the through hole 12411, so that the lubricating medium flows through the through hole 12411 at a first flow rate, so that the damping rod 122 can be quickly extended relative to the housing 121. In the closed state, under the action of the lubricating medium, the valve plate 1242 abuts against at least part of the valve core 1241. At this time, the valve plate 1242 blocks the through hole 12411, so that the lubricating medium passes through the gap between the valve core 1241 and the housing 121 at a second flow rate, so that the damping rod 122 slowly retracts relative to the housing 121 to achieve buffering.

[0097] It should be noted that the embodiment of the present application may have one or more through holes 12411, and the embodiment of the present application does not limit the number of through holes 12411. It is understandable that when multiple through holes 12411 are provided, the multiple through holes 12411 are spaced apart along the circumference of the valve core 1241, which can make the lubricating medium flow evenly along the circumference of the valve core 1241, and on the other hand, when one of the through holes 12411 is blocked, it will not affect the movement of the damping rod 122.

[0098] In some optional embodiments of the present application, the damping member also includes: an oil seal seat 125 and a spring 126; the oil seal seat 125 is sleeved on the damping rod 122, and the oil seal seat 125 is located between the sealing plug 123 and the one-way valve 124; an air cavity is formed between the oil seal seat 125 and the sealing plug 123; the spring 126 is sleeved on the damping rod 122 and is located in the air cavity, and the spring 126 can be extended and retracted along the first direction X to adjust the volume of the air cavity.

[0099] In the embodiment of the present application, since an oil seal seat 125 is provided between the sealing plug 123 and the one-way valve 124, for two symmetrically arranged damping members, i.e., the first damping member 128 and the second damping member 129, a closed air cavity can be formed between the sealing plug 123 of the first damping member 128 and the oil seal seat 125, a closed air cavity can be formed between the sealing plug 123 of the second damping member 129 and the oil seal seat 125, and a closed lubricating medium storage cavity can be formed between the oil seal seats 125 of the first damping member 128 and the second damping member 129, i.e., the lubricating medium only flows between the two oil seal seats 125 to realize the opening and closing of the first damping rod 122 and the second damping rod 122. In addition, when the damping member retracts relative to the housing 121, at least part of the damping member will occupy a part of the lubricating medium storage cavity. Since a spring 126 is provided, the spring 126 is provided in the air cavity, and the volume of the air cavity can be adaptively reduced by compression of the spring 126 to compensate for the space occupied by the damping member.

[0100] In a specific application, the oil seal seat 125 includes a stopper 1251 and an oil seal 1252 sequentially arranged along the first direction X, and the oil seal 1252 is arranged close to the one-way valve 124. In order to achieve a sealing effect, the oil seal 1252 is usually a deformable material with elastic deformation ability, such as silicone, etc. Based on this, the embodiment of the present application is provided with a stopper 1251, which can support the oil seal 1252 and limit the deformation degree of the oil seal 1252, which is conducive to improving the sealing effect of the oil seal seat 125.

[0101] In some optional embodiments of the present application, the housing 121 is provided with air holes 1211 at corresponding positions of the air cavity. In this way, when the volume of the air cavity changes, the air cavity can be substantially maintained at atmospheric pressure through exhaust or intake of air through the air holes 1211, thereby avoiding positive or negative pressure conditions that are not conducive to the movement of the damping member. The embodiments of the present application do not limit the number of air holes 1211, and those skilled in the art can adjust them as needed. Figure 5 As shown, the housing 121 of the embodiment of the present application is provided with an air hole 1211 at a corresponding position of each air cavity.

[0102] In some optional embodiments of the present application, the frame 11 is provided with guide grooves 111, and the guide grooves 111 are provided with two groups, and the two groups of guide grooves 111 are symmetrically arranged along the center of the frame 11; one movable buckle 13 is slidably connected to one group of guide grooves 111. Since the guide grooves 111 are provided, one movable buckle 13 is slidably connected to one group of guide grooves 111, so that the movable buckle 13 can be guided to slide, so as to achieve relative sliding of the two movable buckles 13.

[0103] Specifically, the frame 11 includes a first bottom wall and a first side wall which are vertically arranged; the guide groove 111 is arranged on the first side wall, and the guide groove 111 includes a straight section 1111 and a bent section 1112 which are arranged in sequence along the first direction X and are connected to each other, and the straight section 1111 is close to the center of the first side wall; the bent section 1112 extends toward the first bottom wall at one end away from the straight section 1111.

[0104] In the embodiment of the present application, since the straight section 1111 and the bent section 1112 are provided, the straight section 1111 can make the movable buckle 13 slide along the first direction X, and the bent section 1112 can realize the matching connection or disconnection between the movable buckle 13 and the limiting structure. It should be noted that in one embodiment, two first side walls and two first bottom walls are provided, and the two first side walls and two first bottom walls are respectively arranged in parallel to form a substantially rectangular frame 11, wherein each first side wall is provided with a guide groove 111, so that the two sides of the movable buckle 13 close to the two first side walls can be respectively slidably connected with the two guide grooves 111, which is conducive to improving the sliding stability of the movable buckle 13.

[0105] like Figure 7 As shown, the movable buckle 13 includes: a main body 131 and a guide column 132; the guide column 132 is arranged on the main body 131, and the guide column 132 is slidably connected to the guide groove 111 to change the position of the main body 131 relative to the guide groove 111; a limiting portion 133 is arranged on the side of the main body 131 away from the first bottom wall, and the limiting portion 133 is used to cooperate with the limiting structure to limit the main body 131.

[0106] In the embodiment of the present application, since a guide post 132 is provided, the guide post 132 is slidably connected to the guide slot 111, so that the position of the body 131 relative to the guide slot 111 can be changed, that is, the sliding of the movable buckle 13 is realized. Since a limiting portion 133 is provided, the body 131 can be limited by the matching connection between the limiting portion 133 and the limiting structure, that is, the limiting of the movable buckle 13 is realized.

[0107] It should be noted that Figure 7 It can be seen that the limiting portion 133 is a limiting groove, and the limiting structure includes two limiting members arranged at intervals on the slide rail 2 along the first direction X. Each limiting member is provided with a limiting protrusion, and the limiting of the movable buckle 13 can be achieved by the cooperation between the limiting protrusion and the limiting groove.

[0108] In some optional embodiments of the present application, the guide column 132 includes a first guide column 1321 and a second guide column 1322, and the first guide column 1321 and the second guide column 1322 are arranged at intervals along the extension direction of the guide groove 111, and the second guide column 1322 is close to the damping member; when the first guide column 1321 slides to the bending section 1112, the limiting portion 133 is disconnected from the limiting structure to release the limitation on the main body 131.

[0109] In the embodiment of the present application, since the first guide post 1321 and the second guide post 1322 are provided, and the first guide post 1321 and the second guide post 1322 are provided at intervals along the extension direction of the guide groove 111, the sliding stability of the movable buckle 13 can be improved. In addition, when the first guide post 1321 slides to the bending section 1112, the movable buckle 13 deflects, so that the limiting portion 133 can be disconnected from the limiting structure.

[0110] In some optional embodiments of the present application, the sliding door buffer mechanism also includes an elastic member 14, which is arranged parallel to the damping structure 12 and located between the two movable buckles 13; the movable buckle 13 also includes: a first connecting portion 134 and a second connecting portion 135, the first connecting portion 134 and the second connecting portion 135 are both arranged on one side of the main body 131 close to the damping member, and the first connecting portion 134 and the second connecting portion 135 are respectively movably connected to the damping member and the elastic member 14.

[0111] In the embodiment of the present application, since the first connection part 134 is provided, through the corresponding connection between the first connection parts 134 of the two movable buckles 13 and the two damping members, specifically, the first connection parts of the two movable buckles 13 are correspondingly connected to the ends of the two damping members away from the housing 121, the movable buckles 13 can be reliably connected to the damping members, and when the two movable buckles 13 slide relative to each other, the two damping members can be adaptively extended or retracted. Since the second connection part 135 is provided, through the corresponding connection between the second connection parts 135 of the two movable buckles 13 and the two ends of the elastic member 14, the movable buckle 13 can be reliably connected to the elastic member 14, and when the two movable buckles 13 slide relative to each other, the elastic member 14 can be stretched to store force or retracted to release elastic force.

[0112] Optionally, the first connecting portion 134 is a first card slot, and the second connecting portion 135 is a second card slot; a first connecting head 127 is provided at one end of the damping member close to the movable buckle 13, and the first connecting head 127 can be rotatably engaged in the first card slot; a second connecting head 141 is provided at one end of the elastic member 14 close to the movable buckle 13, and the second connecting head 141 can be rotatably engaged in the second card slot.

[0113] In the embodiment of the present application, since the first connecting portion 134 is a first slot, the damping member is provided with a first connecting head 127, and the first connecting head 127 is rotatably connected to the first slot. In this way, on the one hand, it is helpful to simplify the assembly of the movable buckle 13 and the damping member, and on the other hand, when the movable buckle 13 slides to the bending section 1112 and deflects, the damping member will not be twisted to affect the movement of the damping member. Since the second connecting portion 135 is a second slot. In this way, on the one hand, it is helpful to simplify the assembly of the movable buckle 13 and the elastic member 14, and on the other hand, when the movable buckle 13 slides to the bending section 1112 and deflects, the elastic member 14 will not be twisted to affect the stretching or retraction of the elastic member 14, which is beneficial to improve the working reliability of the buffer device 1.

[0114] It should be noted that, in one embodiment, Figure 6 to Figure 7 The first connecting head 127 is a ball pin, which is arranged at one end of the damping rod 122 close to the movable buckle 13. The first slot is a universal joint slot that matches the ball pin. The ball pin and the universal joint slot are engaged with each other to achieve a reliable connection between the damping member and the movable buckle 13.

[0115] In some optional embodiments of the present application, the movable buckle 13 includes a first movable buckle 136 and a second movable buckle 137; the limiting structure includes a first limiting member 22 and a second limiting member 23, the first limiting member 22 and the second limiting member 23 are arranged on the slide rail 2 at intervals along the first direction X, and the first limiting member 22 and the second limiting member 23 are respectively used to cooperate with the first movable buckle 136 and the second movable buckle 137; when the first limiting member 22 is cooperated with the first movable buckle 136, or the second limiting member 23 is cooperated with the second movable buckle 137, the first movable buckle 136 and the second movable buckle 137 slide relative to each other when the frame 11 slides. The first movable buckle 136 or the second movable buckle 137 can be fixed relative to the slide rail 2 by the cooperation connection between the first movable buckle 136 and the first limiting member 22 or the cooperation connection between the second movable buckle 137 and the second limiting member 23, and when the frame 11 slides relative to the slide rail 2, the first movable buckle 136 and the second movable buckle 137 can slide relative to each other.

[0116] In a specific application, the slide rail 2 includes a slide groove 24 extending along the first direction X, and the slide groove 24 is provided with end caps 21 at both ends along the first direction X. The slide groove 24 includes two second side walls arranged in parallel and a second bottom wall arranged between the two second side walls. When the frame 11 is installed with the slide groove 24, the two first bottom walls of the frame 11 are respectively opposite to the two second side walls of the slide groove 24, and one of the second side walls of the frame 11 is opposite to the second bottom wall of the slide groove 24. Figure 8As shown, the first limiting member 22 is arranged on one side of one of the second side walls away from the center of the slide slot 24, and the first limiting member 22 includes a first fixing portion 221 and a first limiting protrusion 222. The first fixing portion 221 is extended along the first direction X, and one end of the first fixing portion 221 close to the end cover 21 is fixedly connected to the end cover 21. The first limiting protrusion 222 is arranged at one end of the first fixing portion 221 away from the end cover 21, and at least part of the first limiting protrusion 222 extends into the slide slot 24 so as to be matched and connected with the limiting groove of the first movable buckle 136. Fig. 9 As shown, the second limiting member 23 is arranged on one side of one of the second side walls away from the center of the slide groove 24, and the second limiting member 23 includes a second fixing portion 231 and a second limiting protrusion 232. The second fixing portion 231 is extended along the first direction X, one end of the second fixing portion 231 is fixedly connected to the second side wall, and the second limiting protrusion 232 is arranged at the other end of the second fixing portion 231, and at least a portion of the second limiting protrusion 232 extends into the slide groove 24 so as to cooperate with the limiting groove of the second movable buckle 137.

[0117] It should be noted that the first stopper 22 and the second stopper 23 are arranged on the same second side wall. In addition, the first stopper 22 can be integrally formed with the end cover 21, or can be separately formed and then connected, which is not limited in the present embodiment, and those skilled in the art can adjust as needed.

[0118] In some optional embodiments of the present application, the sliding door buffer mechanism further includes a slider 15; the slider 15 is fixedly connected to the frame 11 and slidably connected to the slide rail 2, and the slider 15 is used to connect to the sliding door. In this way, since the slider 15 is provided, the slider 15 is slidably connected to the slide rail 2, and when the sliding door is connected to the slider 15, the sliding door can be moved along the first direction X. Since the slider 15 is fixedly connected to the frame 11, the thrust acting on the sliding door can be transmitted to the buffer device 1, thereby buffering the movement impact of the sliding door and slowing down the movement speed of the sliding door, effectively avoiding the problem that the sliding door quickly hits the door frame under the action of inertia and produces a huge impact sound.

[0119] It should be noted that one or at least two sliders 15 can be provided. The embodiment of the present application does not limit the number of sliders 15, and those skilled in the art can adjust it according to actual needs. It is understandable that in order to transmit the thrust acting on the movement to the buffer device 1, at least one of the sliders 15 needs to be fixedly connected to the frame 11 of the buffer device 1. Figure 1 As shown, two sliders 15 are provided, and one of the sliders 15 is fixedly connected to the frame 11, so as to ensure that the sliding door moves smoothly along the first direction X and transmit the thrust acting on the sliding door to the buffer device 1 to achieve buffering of the sliding door.

[0120] In practical applications, the sliding door buffer mechanism further includes a connecting block 16, which is fixedly connected to the sliding door and detachably connected to the slider 15, so as to facilitate the assembly of the sliding door and the slide rail 2. In one embodiment, the slider 15 is provided with a slot, and the connecting block 16 is provided with a buckle, which is engaged with the slot to realize the detachable connection between the connecting block 16 and the slider 15.

[0121] In summary, the sliding door buffer mechanism provided in the embodiment of the present application has at least the following advantages:

[0122] In an embodiment of the present application, the sliding door buffer mechanism includes: a buffer device and a slide rail; the buffer device includes a frame, a damping structure and two movable buckles arranged in the frame, the frame is fixedly connected to the sliding door and slidably connected to the slide rail; the two movable buckles are arranged at intervals along the first direction and are both slidably connected to the frame; the slide rail is provided with a limiting structure, the limiting structure is used to limit one of the two movable buckles so that the two movable buckles slide relative to each other when the frame slides; the damping structure is arranged between the two movable buckles, the damping structure includes a shell and two damping members symmetrically arranged and telescopically connected to the two ends of the shell along the first direction, the shell is fixedly connected to the frame, and the ends of the two damping members facing away from the shell are respectively connected to the two movable buckles one by one, and the damping members are used to provide resistance to buffer the relative sliding of the two movable buckles. On the one hand, since the damping structure is provided, when the sliding door is pushed, the damping structure can provide resistance, thereby buffering the movement impact of the sliding door and slowing down the movement speed of the sliding door, effectively avoiding the problem that the sliding door quickly hits the door frame under the action of inertia and produces a huge impact sound. On the other hand, since the damping structure includes two symmetrically arranged damping members, the damping structure can provide resistance in two directions, thereby achieving two-way buffering. That is, the sliding door buffering mechanism of the embodiment of the present application can achieve two-way buffering of the sliding door by providing a buffer device, which is conducive to simplifying the installation process and reducing the installation cost.

[0123] An embodiment of the present application also provides a sliding door assembly, which includes: a door frame, a sliding door, and a sliding door buffer mechanism of any one of the above embodiments; the sliding door is fixedly connected to the frame 11; the slide rail 2 is fixedly connected to the door frame, and when the sliding door is pushed along the first direction X, the frame 11 slides relative to the slide rail 2 and drives the damping structure 12 to move to achieve buffering.

[0124] It should be noted that in the embodiment of the present application, the structure of the sliding door buffer mechanism is the same as that of the sliding door buffer mechanism in any of the above embodiments, and its beneficial effects are also similar, which will not be described in detail here. In addition, the sliding door assembly provided by the present application is suitable for a variety of application scenarios such as wardrobes, floor-to-ceiling doors and windows, and drawers.

[0125] Combination Figures 10 to 25The following is an example of a working process of realizing bidirectional buffering in one of the sliding doors of the sliding door assembly using the sliding door buffer mechanism of the embodiment of the present application:

[0126] 1. If Figure 10 to Figure 11 As shown, the sliding door is in the left closed state; at this time, the first movable buckle 136 is connected with the first limit member 22, the first damping member 128 is in the retracted state, and the second damping member 129 is in the extended state.

[0127] 2. If Figure 12 to Figure 13 As shown, the sliding door is pushed to the right, and the sliding door drives the frame 11 to move to the right, and the first movable buckle 136 slides to the left relative to the second movable buckle 137 until the first guide column 1321 of the first movable buckle 136 slides to the bending section 1112 of the guide groove 111; at this time, the first movable buckle 136 is disconnected from the first limit member 22, the first damping member 128 is quickly extended relative to the shell 121, and the elastic member 14 is stretched to complete the force storage.

[0128] 3. If Figure 14 to Figure 15 As shown, the sliding door drives the frame 11 to continue to move rightward, and the second movable buckle 137 begins to cooperate with the second limiting member 23 so that the first guide column 1321 of the second movable buckle 137 is about to be separated from the bending section 1112 of the guide groove 111.

[0129] 4. If Figure 16 to Figure 17 As shown, the elastic member 14 retracts and releases the elastic force, pushing the sliding door to drive the frame 11 to continue to move to the right, and the first guide column 1321 of the second movable buckle 137 slides from the bent section 1112 of the guide groove 111 to the straight section 1111, so that the second movable buckle 137 slides to the left relative to the first movable buckle 136. During this process, the second damping member 129 slowly retracts relative to the shell 121, so that the sliding door moves slowly until it stops to achieve right-ward buffering.

[0130] 5. If Figure 18 to Figure 19 As shown, the sliding door is in the right closed state; at this time, the second movable buckle 137 is connected with the second limit member 23, the second damping member 129 is in the retracted state, and the first damping member 128 is in the extended state.

[0131] 6. If Figure 20 to Figure 21 As shown, the sliding door is pushed to the left, and the sliding door drives the frame 11 to move to the left, and the second movable buckle 137 slides to the right relative to the first movable buckle 136 until the first guide column 1321 of the second movable buckle 137 slides to the bending section 1112 of the guide groove 111; at this time, the second movable buckle 137 is disconnected from the second limit member 23, the second damping member 129 is quickly extended relative to the shell 121, and the elastic member 14 is stretched to complete the force storage.

[0132] 7. If Figure 22 to Figure 23As shown, the sliding door drives the frame 11 to continue to move leftward, and the first movable buckle 136 begins to cooperate with the first limiting member 22 so that the first guide column 1321 of the first movable buckle 136 is about to be separated from the bending section 1112 of the guide groove 111.

[0133] 8. If Figure 24 to Figure 25 As shown, the elastic member 14 retracts and releases the elastic force, pushing the sliding door to drive the frame 11 to continue to move to the left, and the first guide column 1321 of the first movable buckle 136 slides from the bent section 1112 of the guide groove 111 to the straight section 1111, so that the first movable buckle 136 slides to the right relative to the second movable buckle 137. During this process, the first damping member 128 slowly retracts relative to the shell 121, so that the sliding door moves slowly until it stops to achieve left-ward buffering.

[0134] An embodiment of the present application further provides a cabinet, which includes the sliding door assembly of the above embodiment.

[0135] It should be noted that, in the embodiment of the present application, the structure of the sliding door assembly is the same as that of the sliding door assembly of any of the above embodiments, and its beneficial effects are similar, which will not be described in detail. In addition, the cabinets in the embodiment of the present application include but are not limited to wardrobes, bookcases, etc.

[0136] In the description of this specification, the description with reference to the terms "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 the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0137] 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 spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sliding door buffer mechanism, applied to a sliding door, wherein the moving direction of the sliding door is a first direction, and characterized in that: The sliding door buffer mechanism comprises: a buffer device and a slide rail; The buffer device comprises a frame, a damping structure and two movable buckles arranged in the frame, wherein the frame is fixedly connected to the sliding door and slidably connected to the slide rail; The two movable buckles are spaced apart along the first direction and are both slidably connected to the frame; the slide rail is provided with a limiting structure, and the limiting structure is used to limit one of the two movable buckles, so that the two movable buckles slide relative to each other when the frame slides; The damping structure is arranged between the two movable buckles, and the damping structure includes a shell and two damping members symmetrically arranged and telescopically connected to the two ends of the shell along the first direction. The shell is fixedly connected to the frame, and the ends of the two damping members facing away from the shell are respectively connected to the two movable buckles one by one, and the damping members are used to provide resistance to buffer the relative sliding of the two movable buckles.

2. The sliding door buffer mechanism according to claim 1, characterized in that: The housing contains a lubricating medium, and the damping element includes: a damping rod, a sealing plug and a one-way valve; The damping rod is slidably connected in the housing; The sealing plug is arranged between the damping rod and the housing so as to seal the damping rod and the housing; The one-way valve is arranged at one end of the damping rod away from the movable buckle, and the one-way valve is in clearance fit with the housing; The one-way valve has an open state and a closed state. In the open state, the lubricating medium passes through the inside of the one-way valve at a first flow rate, and the damping rod extends relative to the housing. In the closed state, the lubricating medium passes through the gap between the one-way valve and the housing at a second flow rate, and the damping rod retracts relative to the housing, and the second flow rate is less than the first flow rate.

3. The sliding door buffer mechanism according to claim 2, characterized in that: The one-way valve comprises: a valve core, a valve plate and a valve plug; The valve plug is arranged at an end of the damping rod away from the movable buckle; The valve core is sleeved on the damping rod and is in clearance fit with the housing. The valve core is provided with a through hole, and the through hole is used for the lubricating medium to pass through. The valve sheet is arranged between the valve core and the valve plug, and the valve sheet is used to cover the through hole; In the closed state, the valve plate blocks the through hole so that the lubricating medium passes through the gap between the valve core and the housing at the second flow rate; in the open state, the valve plate releases the blocking of the through hole so that the lubricating medium passes through the through hole at the first flow rate.

4. The sliding door buffer mechanism according to claim 2, characterized in that: The damping member further comprises: an oil seal seat and a spring; The oil seal seat is sleeved on the damping rod, and the oil seal seat is located between the sealing plug and the one-way valve; An air cavity is formed between the oil seal seat and the sealing plug; The spring is sleeved on the damping rod and is located in the air cavity. The spring can be extended and retracted along the first direction to adjust the volume of the air cavity.

5. The sliding door buffer mechanism according to claim 4, characterized in that: The shell is provided with air holes at positions corresponding to the air cavity.

6. The sliding door buffer mechanism according to claim 1, characterized in that: The frame is provided with guide grooves, and the guide grooves are provided in two groups, and the two groups of guide grooves are symmetrically arranged along the center of the frame; One of the movable buckles is slidably connected to a group of the guide grooves.

7. The sliding door buffer mechanism according to claim 6, characterized in that: The frame includes a first bottom wall and a first side wall disposed vertically; The guide groove is arranged on the first side wall, and the guide groove includes a straight section and a bent section which are arranged in sequence along the first direction and are connected to each other, and the straight section is close to the center of the first side wall; One end of the bent section away from the straight section extends toward the first bottom wall.

8. The sliding door buffer mechanism according to claim 7, characterized in that: The movable buckle comprises: a body and a guide column; The guide post is disposed on the body, and the guide post is slidably connected to the guide slot so that the position of the body relative to the guide slot changes; A limiting portion is disposed on a side of the main body away from the first bottom wall, and the limiting portion is used to cooperate with the limiting structure to limit the main body.

9. The sliding door buffer mechanism according to claim 8, characterized in that: The guide column comprises a first guide column and a second guide column, the first guide column and the second guide column are arranged at intervals along the extending direction of the guide groove, and the second guide column is close to the damping member; When the first guide post slides to the bending section, the limiting portion is disconnected from the limiting structure to release the limiting of the main body.

10. The sliding door buffer mechanism according to claim 8, characterized in that: The sliding door buffer mechanism further comprises an elastic member, which is arranged in parallel with the damping structure and is located between the two movable buckles; The movable buckle also includes: a first connecting part and a second connecting part, the first connecting part and the second connecting part are both arranged on a side of the main body close to the damping member, and the first connecting part and the second connecting part are movably connected to the damping member and the elastic member respectively.

11. The sliding door buffer mechanism according to claim 10, characterized in that: The first connecting portion is a first card slot, and the second connecting portion is a second card slot; The damping member is provided with a first connector at one end close to the movable buckle, and the first connector is rotatably engaged with the first engaging groove; A second connector is disposed at one end of the elastic member close to the movable buckle, and the second connector is rotatably engaged with the second engaging groove.

12. The sliding door buffer mechanism according to claim 1, characterized in that: The movable buckle comprises a first movable buckle and a second movable buckle; The limiting structure comprises a first limiting member and a second limiting member, the first limiting member and the second limiting member are arranged on the slide rail at intervals along the first direction, and the first limiting member and the second limiting member are respectively used to be matched and connected with the first movable buckle and the second movable buckle; When the first position-limiting member is connected to the first movable buckle in a mating manner, or when the second position-limiting member is connected to the second movable buckle in a mating manner, the first movable buckle and the second movable buckle slide relative to each other when the frame slides.

13. The sliding door buffer mechanism according to claim 1, characterized in that: The sliding door buffer mechanism also includes a slider; The slider is fixedly connected to the frame and slidably connected to the slide rail, and the slider is used to be connected to the sliding door.

14. A sliding door assembly, characterized in that: The sliding door assembly comprises: a door frame, a sliding door and the sliding door buffer mechanism according to any one of claims 1 to 13; The sliding door is fixedly connected to the frame; The slide rail is fixedly connected to the door frame. When the sliding door is pushed along the first direction, the frame slides relative to the slide rail and drives the damping structure to move to achieve buffering.

15. A cabinet, characterized in that: The cabinet includes the sliding door assembly of claim 14.

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