Drawer, drawer connecting device and connecting assembly

Abstract

The invention relates to the technical field of plate connection, in particular to a drawer, a drawer connecting device and a connecting assembly, comprising a side plate, a panel, an insertion piece, a base plate, a first locking piece, a second locking piece, a connecting rod and a first elastic piece; the panel is connected with the inserting piece, the side plate is connected with the connecting assembly, and the first locking piece is rotationally connected to the base plate around a first axis; the second locking piece is rotationally connected to the base plate around a second axis; the connecting rod is provided with a first end and a second end, the first end is rotationally connected to the first locking piece, and the second end is rotationally connected to the second locking piece; one end of the first elastic piece is connected with the first locking piece, and the other end of the first elastic piece is connected to the base plate and used for providing force for the first locking piece to rotate towards the unlocking state and the locking state. The first locking piece, the second locking piece or the connecting rod is provided with a compensation groove; through the arrangement of the compensation grooves, locking of the insertion piece and the multiple locking pieces is achieved, the reliability of connection between the plates is improved, and the structure can be simplified easily.

Description

Technical Field

[0001] The present application relates to the technical field of panel connection, and particularly relates to a drawer, a drawer connection device and a connection assembly. Background Art

[0002] Currently, the connection between two panels is generally carried out by bolts or connectors. In the case of bolt connection, it is easy to loosen under long-term stress, and the adjustability during the assembly process is poor; the connection method of the connector not only facilitates the installation between the panels, but also facilitates the adjustment of the relative position between the side panel and the front panel later, and can cope with the problem of mismatch generated during the manufacturing and assembly of the panels; generally, the connector includes a connection assembly for connecting with one of the panels and an insert for connecting with the other panel, and the insert cooperates with the connection assembly to achieve the installation between the panels.

[0003] When the assembly distance in one direction at the connection position of two panels is relatively long, the existing connectors need to be buckled and locked with multiple locking parts through the insert to reduce loosening and improve the connection tightness. However, since the existing connectors can usually only adjust the position relative to the panel as a whole and cannot independently adjust the relative positions between multiple locking parts, in the case of setting multiple locking parts, due to the manufacturing and assembly of multiple locking parts, inserts and panels not being completely consistent, it is easy to cause that after the two panels are connected to multiple locking parts and inserts, the connected panels are only buckled and locked by one locking part, and the other locking parts cannot be buckled and locked in place, thus easily causing problems of concentrated stress or loosening. Summary of the Invention

[0004] The purpose of the present application is to provide a connection assembly, a drawer connection device and a drawer that can realize the locking of the insert and multiple locking parts to improve the connection reliability between the panels and help simplify the structure.

[0005] To achieve the above purpose, the present application provides a connection assembly, which includes:

[0006] A base plate;

[0007] A first locking part, the first locking part is rotatably connected to the base plate around a first axis;

[0008] A second locking part, the second locking part is rotatably connected to the base plate around a second axis;

[0009] A connecting rod, the connecting rod has a first end and a second end, the first end is rotatably connected to the first locking part, and the second end is rotatably connected to the second locking part; and

[0010] A first elastic member, one end of the first elastic member is connected to the first locking member, and the other end is connected to the substrate, and is configured to provide a force for the first locking member to rotate to the unlocking state and the locking state;

[0011] The first locking member, the second locking member or the connecting rod is provided with a compensation groove;

[0012] Wherein, the compensation groove is configured such that the first locking member and / or the second locking member is abutted by an insert moving in a first direction, and when the second locking member rotates to the locking state, the first locking member can rotate to the locking state under the action of the first elastic member through the compensation groove.

[0013] In some embodiments, the first locking member or the first end is provided with the compensation groove, the first locking member is rotatably connected to the first end through a first rotating shaft, and the first rotating shaft is inserted into the compensation groove;

[0014] Wherein, the first locking member / or the second locking member is abutted by an insert moving in a first direction, and when the second locking member rotates to the locking state, the first rotating shaft can slide along the compensation groove so that the first locking member rotates to the locking state.

[0015] In some embodiments, the compensation groove has a first slot and a second slot. Wherein, when the first locking member rotates to the unlocking state, the first elastic member applies a force to the first locking member to rotate in the unlocking state direction, and at this time, the first rotating shaft slides to the first slot; when the first locking member rotates to the locking state, the first elastic member applies a force to the second locking member to rotate in the locking state direction, and at this time, the first rotating shaft slides to the second slot.

[0016] In some embodiments, the compensation groove is located at the first end of the connecting rod, the first slot and the second slot are arranged in sequence along the length direction of the connecting rod, one end of the first rotating shaft is connected to the first locking member, and the other end protrudes out of the compensation groove; the second slot is closer to the second end than the first slot.

[0017] In some embodiments, the first locking member is provided with a first card slot, one end of the first card slot is provided with a first opening, and the other end is a first closed end; the second locking member is provided with a second card slot, and one end of the second card slot is provided with a second opening;

[0018] When the first locking member is in the locking state, the insert is inserted into the first card slot from the first opening; when the second locking member is in the locking state, the insert is inserted into the second card slot from the second opening.

[0019] In some embodiments, the first elastic member is disposed between the first locking member and the second locking member, and the connection between the first elastic member and the first locking member is located between the first rotating shaft and the first card slot.

[0020] In some embodiments, the first card slot is sequentially provided with a first inner wall and a second inner wall arranged oppositely along a direction away from the first axis. When the first locking member is in a locked state, the insert member is inserted between the first inner wall and the second inner wall;

[0021] The second card slot is sequentially provided with a third inner wall and a fourth inner wall arranged oppositely along a direction away from the second axis. When the second locking member is in a locked state, the insert member is inserted between the third inner wall and the fourth inner wall.

[0022] In some embodiments, the second inner wall extends along a direction from the first closed end to the first opening of the first card slot. In the extending direction of the second inner wall, the distance between the second inner wall and the first axis remains unchanged or gradually increases; and / or

[0023] The fourth inner wall extends along a direction from the second closed end to the second opening of the second card slot. In the extending direction of the fourth inner wall, the distance between the fourth inner wall and the second axis remains unchanged or gradually increases.

[0024] In some embodiments, the first inner wall extends along a direction from the first closed end to the first opening of the first card slot. In the extending direction of the first inner wall, the distance between the first inner wall and the first axis gradually increases; and / or

[0025] The third inner wall extends along a direction from the second closed end to the second opening of the second card slot. In the extending direction of the third inner wall, the distance between the third inner wall and the second axis gradually increases.

[0026] In some embodiments, when the first locking member is in an unlocked state, the direction of the force exerted by the first elastic member on the first locking member faces the first side of the first axis; when the first locking member is in a locked state, the direction of the force exerted by the first elastic member on the first locking member faces the second side of the first axis;

[0027] Wherein, the two opposite sides of the first axis are the first side and the second side respectively.

[0028] In some embodiments, it further includes a first limiting portion and a second limiting portion for limiting the insertion of the insert member along the first direction. The first limiting portion is disposed on one side of the first locking member in the first direction, and the second limiting portion is disposed on one side of the second locking member in the first direction.

[0029] In some embodiments, the insert is provided with a first snap block and a second snap block. When the insert is inserted into the connection component in a first direction, the first snap block is inserted into the first card slot, and the second snap block is inserted into the second card slot, so that the first locking member and the second locking member reach a locked state with the insert;

[0030] When the first locking member and the second locking member are in a locked state:

[0031] Define the line passing through the center of the first snap block and extending in the first direction as the second reference line, and define the line passing through the center of the first snap block and perpendicularly intersecting the first axis as the first connection line;

[0032] Define the line passing through the center of the second snap block and extending in the first direction as the third reference line, and define the line passing through the center of the second snap block and perpendicularly intersecting the second axis as the second connection line;

[0033] The included angle between the first connection line and the second reference line or the second connection line and the third reference line is θ, 0°≤θ≤θ k , where θ k is the critical angle for keeping the first locking member or the second locking member in a locked state with the insert and preventing the insert from being pulled out of the first locking member or the second locking member.

[0034] In some embodiments, a second elastic member is further included. One end of the second elastic member is connected to the second locking member, and the other end is connected to the substrate, for providing a force for the second locking member to rotate towards the unlocked state and the locked state.

[0035] In some embodiments, the first elastic member and the second elastic member are respectively located on both sides of the connecting rod.

[0036] In some embodiments, the first end is rotatably connected to the first locking member around a third axis, and the second end is rotatably connected to the second locking member around a fourth axis;

[0037] The compensation groove is configured as:

[0038] When the first locking member or the first end is provided with the compensation groove, the third axis can move along the compensation groove to rotate the first locking member to the locked state;

[0039] When the second locking member or the second end is provided with the compensation groove, the fourth axis can move along the compensation groove to rotate the first locking member to the locked state.

[0040] For the same purpose, the present application also provides a drawer connection device, including an insert and the above-mentioned connection assembly;

[0041] The insert can be inserted into the connection assembly along the first direction and abut against the first locking member and / or the second locking member to rotate. When the first locking member and / or the second locking member rotate to the locked state, the insert is locked between the first locking member and the second locking member.

[0042] In some embodiments, the insert is provided with a first snap block and a second snap block. The first locking member is provided with a first slot having a first opening, and the second locking member is provided with a second slot having a second opening;

[0043] When the first snap block is inserted into the first slot from the first opening and the first snap block is restricted within the first slot, the first locking member and the insert reach the locked state;

[0044] When the second snap block is inserted into the second slot from the second opening and the second snap block is restricted within the second slot, the second locking member and the insert reach the locked state.

[0045] For the same purpose, the present application also provides a drawer, which includes side plates, a panel and the above-mentioned drawer connection device. The panel is connected to the insert, and the side plates are connected to the connection assembly.

[0046] Implementing the embodiments of the present application has the following technical effects:

[0047] The connection assembly provided by the present application is provided with a first locking member and a second locking member rotatably mounted on a substrate, and the first locking member and the second locking member are connected by a connecting rod. Thus, when the first locking member or the second locking member is rotated by the insert abutting against it, the first locking member and the second locking member can rotate together, so as to lock the insert;

[0048] In addition, to avoid the problem that the first locking member and the second locking member cannot both be rotated to the locked state due to manufacturing or assembly issues, a compensation groove is provided in the first locking member, the second locking member, or the connecting rod of the present application. When the second locking member and / or the first locking member is abutted and rotated by the insert moving in the first direction, and when the second locking member rotates to the locked state and locks with the insert, since the second locking member cannot continue to rotate at this time, and there is no locking between the first locking member and the insert yet. At this time, due to the provided compensation groove, the first locking member can be driven by the first elastic member to rotate relative to the second locking member, so that the first locking member can further rotate in the direction of the locked state, thereby locking with the insert, avoiding the problem that the first locking member and the second locking member cannot lock the insert simultaneously due to mismatch, thus improving the range of plate locking and avoiding the problems of local concentrated stress and loosening of the plate.

[0049] Furthermore, the present application is provided with a first elastic member, which is connected to the first locking member. When the first locking member is in the unlocked state or the locked state, the first locking member can be maintained in the unlocked state or the locked state under the action of the first elastic member to avoid loosening. Moreover, when the first locking member is abutted by the insert and switches from the unlocked state to the locked state, the force exerted by the first elastic member on the first locking member changes from the direction of driving the first locking member to rotate towards the unlocked state at the beginning to the force of driving the first locking member to rotate towards the locked state, thereby simplifying the structure of the connection assembly. One elastic member can simultaneously perform the functions of driving unlocking and locking.

[0050] The drawer connection device and the drawer provided by the present application include the above-mentioned connection assembly, and thus have the technical effects of the above-mentioned connection assembly. Brief Description of the Drawings

[0051] The present application will be described in more detail with the aid of the drawings below. Without relying on a specific combination of technical features, the technical features shown and / or described below in the drawings are generally the technical features of the present application and accordingly improve the present application.

[0052] It should be noted that in different drawings, the same reference numerals denote the same or substantially the same components.

[0053] Figure 1 is a schematic structural diagram of a drawer according to a preferred embodiment of the present application;

[0054] Figure 2 is an exploded view of the connection assembly according to a preferred embodiment of the present application;

[0055] Figure 3 is Figure 2 an enlarged schematic view of part A in

[0056] Figure 4Schematic diagram of the first locking member of the preferred embodiment of the present application;

[0057] Figure 5 Schematic diagram of the second locking member of the preferred embodiment of the present application;

[0058] Figure 6 Schematic diagram of the drawer connection device of the preferred embodiment of the present application in the unlocked state;

[0059] Figure 7 Front view of the drawer connection device of the preferred embodiment of the present application in the unlocked state;

[0060] Figure 8 is Figure 7 Enlarged view at C in

[0061] Figure 9 Schematic diagram of the connection component of the preferred embodiment of the present application in the locked state;

[0062] Figure 10 Schematic diagram of the drawer connection device of the preferred embodiment of the present application in the locked state;

[0063] Figure 11 is Figure 10 Enlarged view at E in

[0064] Figure 12 Schematic diagram of the annotation of the angle θ in another embodiment of the present application;

[0065] Figure 13 is Figure 10 Enlarged view at B in

[0066] Figure 14 Schematic diagram of the compensation distance S in the preferred embodiment of the present application;

[0067] Figure 15 Schematic diagram of the first adjusting screw of the preferred embodiment of the present application;

[0068] Figure 16 Schematic diagram of the drawer connection device of another embodiment of the present application in the locked state.

[0069] Explanation of reference numerals:

[0070] 100, connection component;

[0071] 110, substrate, 111, first blocking surface, 112, second blocking surface, 113, slot, 114, third blocking surface, 115, fourth blocking surface;

[0072] 120. The first locking member, 121. The first card slot, 121a. The first inner wall, 121b. The second inner wall, 121b1. The abutting section, 122. The first opening, 123. The first limiting surface, 124. The second limiting surface;

[0073] 130. The second locking member, 131. The second card slot, 131a. The third inner wall, 131b. The fourth inner wall, 132. The second opening, 133. The third limiting surface, 134. The fourth limiting surface, 135. The unlocking groove;

[0074] 140. The connecting rod, 141. The first end, 142. The second end, 143. The compensation groove, 143a. The compensation section, 143b. The mating section;

[0075] 150. The first elastic member, 160. The second elastic member;

[0076] 170. The first limiting portion, 171. The first limiting wall, 172. The second limiting wall, 173. The third limiting wall, 170a. The second limiting portion;

[0077] 180. The second adjusting mechanism, 181. The fixing plate, 181a. The adjusting groove, 181b. The sliding groove, 182. The first adjusting screw, 182a. The adjusting protrusion;

[0078] 190. The first rotating shaft; 192. The second rotating shaft

[0079] M. The first axis, N. The second axis, X. The first direction, Y. The second direction, Z. The third direction; K. The first reference line; U. The second reference line; V. The first connecting line; J. The tangent line;

[0080] 200. The insert member, 211. The first snap block; 212. The second snap block; 220. The first adjusting mechanism; 231. The first plugging block, 232. The second plugging block; 240. The connecting member;

[0081] 300. The drawer, 310. The side plate, 320. The panel. Detailed implementation manners

[0082] The following will further describe in detail the specific implementation manners of the present application in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0083] First of all, it should be noted that the top, bottom, upward, downward and other orientations mentioned in this article are defined relative to the directions in each drawing. They are relative concepts and can therefore change according to their different positions and usage states. Therefore, these or other orientations should not be used as restrictive terms. At the same time, the term "including" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality.

[0084] In addition, it should be pointed out that for any single technical feature described or implied in the embodiments of this article, or any single technical feature shown or implied in the drawings, combinations can still be continued between these technical features (or their equivalents) to obtain other embodiments of the present application that are not directly mentioned in this article.

[0085] In addition, it should also be understood that the terms "first", "second", etc. are used in this article to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, "first" information can also be called "second" information, and similarly, "second" information can also be called "first" information.

[0086] Reference Figure 1 , this embodiment provides a drawer 300, including side plates 310, a panel 320 and a drawer connection device. Among them, the drawer connection device includes an insert 200 and a connection assembly 100. The panel 320 is connected to the insert 200, and the side plates 310 are connected to the connection assembly 100. In the actual installation of the drawer 300, the first direction X in the embodiments of the present application is the front-back direction of the drawer 300, the second direction Y is the left-right direction of the drawer 300, and the second direction Y is the up-down direction of the drawer 300.

[0087] Specifically, referring to Figure 2 and Figure 6 , the connection assembly 100 in this embodiment includes a base plate 110, a first locking member 120, a second locking member 130, a connecting rod 140 and a first elastic member 150; the insert 200 includes a first plug-in block 231 that cooperates with the first locking member 120 and a second plug-in block 232 that cooperates with the second locking member 130. The first plug-in block 231 and the second plug-in block 232 are connected by a connecting member 240. A first snap block 211 is provided on the first plug-in block 231, and a second snap block 212 is provided on the second plug-in block 232.

[0088] The first locking member 120 is rotatably connected to the substrate 110 about the first axis M, the second locking member 130 is rotatably connected to the substrate 110 about the second axis N, the connecting rod 140 has a first end 141 and a second end 142, the first end 141 is rotatably connected to the first locking member 120, the second end 142 is rotatably connected to the second locking member 130, one end of the first elastic member 150 is connected to the first locking member 120, and the other end is connected to the substrate 110 for providing a force for the first locking member 120 to rotate towards the unlocking state and the locking state. Specifically, in this embodiment, the first elastic member 150 and the first locking member 120 are arranged on the same side of the substrate 110;

[0089] Optionally, the first locking member 120, the second locking member 130 or the connecting rod 140 is provided with a compensation groove 143, and the compensation groove 143 is configured as:

[0090] The first locking member 120 and / or the second locking member 130 is abutted by the insert 200 along the first direction X, and when the second locking member 130 rotates to the locking state, the first locking member 120 can rotate to the locking state under the action of the first elastic member 150 through the compensation groove 143.

[0091] Specifically, the first end 141 of the connecting rod 140 is rotatably connected to the first locking member 120 about the third axis, and the second end 142 is rotatably connected to the second locking member 130 about the fourth axis. It can be understood that:

[0092] When the first locking member 120 or the first end 141 is provided with the compensation groove 143, the third axis can move along the compensation groove 143 to enable the first locking member 120 to rotate to the locking state;

[0093] When the second locking member 130 or the second end 142 is provided with the compensation groove 143, the fourth axis can move along the compensation groove 143 to enable the first locking member 120 to rotate to the locking state.

[0094] Furthermore, the first locking member 120 or the first end 141 is provided with the compensation groove 143. The first locking member 120 and the first end 141 are rotatably connected through the first rotating shaft 190. The axis of the first rotating shaft 190 is the third axis, and the first rotating shaft 190 is inserted into the compensation groove 143. Specifically, in this embodiment, the compensation groove 143 is opened on the first end 141, and the compensation groove 143 extends along the direction from the first end 141 to the second end 142;

[0095] When the first locking member 120 and / or the second locking member 130 are abutted and rotated by the insert 200 moving in the first direction X, the first rotating shaft 190 can be driven by the first elastic member 150 to slide along the compensation groove 143, so that the first locking member 120 rotates to the locking state; wherein, the member inserted by the insert 200 in the first direction X and abutted against can be the first locking member 120 or the second locking member 130, or both the first locking member 120 and the second locking member 130 are abutted by the insert 200, so as to rotate in the locking direction.

[0096] The first locking member 120 and the second locking member 130 are rotatably mounted on the substrate 110, and the first locking member 120 and the second locking member 130 are connected by a connecting rod 140, so that when the first locking member 120 or the second locking member 130 is abutted and rotated by the insert 200, the first locking member 120 and the second locking member 130 can rotate together, so as to lock the insert 200;

[0097] Finally, in order to avoid the problem that the first locking member 120 and the second locking member 130 cannot both rotate to the locking state due to manufacturing or assembly problems, a compensation groove 143 is provided at the first end 141 of the first locking member 120 or the connecting rod 140 of the present application. When the second locking member 130 and / or the first locking member 120 are abutted and rotated by the insert 200 moving in the first direction X, and the second locking member 130 is locked with the insert 200, since the second locking member 130 cannot continue to rotate at this time, and there is no locking between the first locking member 120 and the insert 200 yet. At this time, the first rotating shaft 190 can be driven by the first elastic member 150 to move along the compensation groove 143 in the direction close to the second end 142, so that the first locking member 120 can further rotate in the locking direction, so as to be locked with the insert 200, avoiding the problem that the insert 200 cannot be locked due to the mismatch between the first locking member 120 and the second locking member 130. Thereby, the locking range of the plate member is increased, and the problems of local concentrated stress and looseness of the plate member are avoided.

[0098] Reference Figures 2 - 11, in some embodiments, the compensation slot 143 has a first slot position and a second slot position. When the first locking member 120 rotates from the locked state to the unlocked state, the first elastic member 150 applies a force to the first locking member 120 to rotate it in the direction of the unlocked state, so as to drive the first locking member 120 to rotate and drive the first rotating shaft 190 to slide to the first slot position. When the first locking member 120 rotates from the unlocked state to the locked state, the first elastic member 150 applies a force to the first locking member 120 to rotate it in the direction of the locked state, so as to drive the first locking member 120 to rotate in the opposite direction and drive the first rotating shaft 190 to slide to the second slot position. Through the cooperation of the first elastic member 150, the first rotating shaft 190, the first slot position and the second slot position of the compensation slot 143, after the second locking member 130 locks the first locking member 120, the first locking member 120 can further rotate in the locking direction, and the locking and unlocking actions of the first locking member 120 are made more flexible.

[0099] Thus, when the first locking member 120 is in the unlocked state or the locked state, the first locking member 120 can be kept in the unlocked state or the locked state under the action of the first elastic member 150, avoiding looseness between the first locking member 120 and the insert member 200. And when the first locking member 120 is abutted by the insert member 200 and converted from the unlocked state to the locked state, the force applied by the first elastic member 150 to the first locking member 120 is converted from the direction of driving the first locking member 120 to rotate in the unlocked state direction at the beginning to the force of driving the first locking member 120 to rotate in the locked state direction, thus simplifying the structure of the connection assembly 100, and an elastic member can simultaneously perform the functions of driving unlocking and locking.

[0100] Specifically, in this embodiment, the compensation slot 143 is located on the first end 141 of the connecting rod 140. Compared with being arranged on the first locking member 120, the structure of the first locking member 120 can be simplified, it is easier to install, and taking the extending direction of the connecting rod 140 as a reference, it is easier to set the compensation slot 143. Specifically, the first slot position and the second slot position are arranged in sequence along the length direction of the connecting rod 140. One end of the first rotating shaft 190 is connected to the first locking member 120, and the other end protrudes from the compensation slot 143. The second slot position is closer to the second end 142 than the first slot position.

[0101] In other embodiments, the compensation slot 143 can be arranged on the second end 142 of the connecting rod 140 or the second locking member 130. Referring to Figure 16 , the compensation slot 143 is arranged on the second end 142 of the connecting rod 140. Specifically, the second locking member 130 is rotatably connected to the second end 142 of the connecting rod 140 through a second rotating shaft 192. The second rotating shaft 192 is fixed to the second locking member 130, and the other end is inserted into the compensation slot 143 and can slide along the extending direction of the compensation slot 143.

[0102] Further, the maximum distance between the first slot and the second slot is L millimeters. In this embodiment, the maximum distance between the first slot and the second slot is the length that the compensation slot 143 extends along the direction from the first end 141 to the second end 142. The diameter of the first rotating shaft 190 is D millimeters, and the compensation slot 143 has a compensation distance of H millimeters, where H = L - D, and 0.5 ≤ H ≤ 2, that is, 0.5 ≤ L - D ≤ 2. In this way, when the first locking member 120 rotates from the unlocked state to the locked state under the driving action of the second locking member 130 through the connecting rod 140, after the second locking member 130 rotates to the locked state, the first locking member 120 can rotate a certain angle in the locking direction through the compensation slot 143. Specifically, the first rotating shaft 190 slides in the compensation slot 143, and the first rotating shaft 190 slides from the first slot to the second slot. Therefore, after the second locking member 130 rotates to the locked state and the first locking member 120 has not reached the locked state, the first locking member 120 can continue to rotate a certain angle in the locking direction until it can rotate to the locked state, and the first locking member 120 is locked with the plug block 230 of the insert member 200, avoiding the problem that the first locking member 120 and the second locking member 130 cannot be locked with the insert member 200 at the same time due to inconsistent cooperation caused by assembly or manufacturing.

[0103] It should be noted that the first slot and the second slot are arranged in sequence along the direction from the first end 141 to the second end 142. The first slot and the second slot can be at any position of the compensation slot 143. When the first locking member 120 rotates to the locked state, the position where the first rotating shaft 190 is located in the compensation slot 143 is the second slot. When the first locking member 120 rotates to the unlocked state, the position where the first rotating shaft 190 is located in the compensation slot 143 is the first slot.

[0104] The setting of the dimensional relationship between the first slot, the second slot of the compensation slot 143 and the first rotating shaft 190 can make the rotation angle of the first locking member 120 within a reasonable range, so that when the first locking member 120 continues to rotate in the locking direction through the compensation slot 143, on the one hand, the first locking member 120 can rotate an enough angle to be locked with the plug block 230 of the insert member 200; on the other hand, it avoids the excessive stroke of the first rotating shaft 190 in the compensation slot 143, which affects the efficiency of the second locking member 130 driving the first locking member 120 to rotate through the connecting rod 140. More preferably, L - D = 1 in this embodiment.

[0105] Specifically, refer to Figure 3, in some embodiments, the inner wall of the compensation groove 143 includes a compensation section 143a and a mating section 143b connected to both ends of the compensation section 143a. The mating section 143b mates with the outer peripheral surface of the first rotating shaft 190. Preferably, the mating section 143b is an arc segment, and the compensation section 143a is an arc segment or a straight segment. In this way, when the first locking member 120 rotates, the first rotating shaft 190 rotates around the first axis M, and its rotation trajectory is circular. When the compensation section 143a is an arc segment, the rotation of the first rotating shaft 190 is smoother, and the stroke is larger than that of a straight segment. It should be noted that when the second locking member 130 rotates to the locked state and the first locking member 120 has not reached the locked state, although there is still a gap between the first locking member 120 and the insert 200 at this time, this gap is relatively small. Therefore, the first locking member 120 only needs to rotate a small angle to abut against the insertion block 230 of the insert 200. And generally, there is a gap between the first rotating shaft 190 and the inner wall of the compensation groove 143. Therefore, at this time, the compensation section 143a can be a straight segment, which can also allow the first rotating shaft 190 to slide in the compensation groove 143 to achieve the effect of enabling the first locking member 120 to continue rotating and achieving locking.

[0106] It should be noted that the first direction X in this embodiment is generally a direction parallel to the drawer pulling direction. Refer to Figure 2 , 4 , 5, in order to realize the locking between the insert 200 and the first locking member 120, the first locking member 120 in this embodiment is provided with a first card slot 121. One end of the first card slot 121 is provided with a first opening 122, and the other end is a first closed end. Further, when the insert 200 is inserted along the first direction X and inserted into the first card slot 121 along the first opening 122, the first snap block 211 can be restricted within the first card slot 121, so that the first locking member 120 and the insert 200 reach the locked state. The second locking member 130 in this embodiment is provided with a second card slot 131. One end of the second card slot 131 is provided with a second opening 132, and the other end is a second closed end. When the insert 200 is inserted along the first direction X and inserted into the second card slot 131 along the second opening 132, the second snap block 212 can be restricted within the second card slot 131, so that the second locking member 130 and the insert 200 reach the locked state. And the first opening 122 and the second opening 132 are arranged in opposite directions, and both face the outside of the substrate 110. Thus, during the locking or unlocking process of the first locking member 120 and the second locking member 130, their rotation directions are opposite. Therefore, during the unlocking or locking process of the first locking member 120 and the second locking member 130, with the cooperation of the connecting rod 140, they can interact with each other and rotate in the direction of the unlocking state or the locking state at the same time.

[0107] In some embodiments, the first elastic member 150 is disposed between the first locking member 120 and the second locking member 130, and the connection between the first elastic member 150 and the first locking member 120 is located between the first rotating shaft 190 and the first card slot 121. The first elastic member 150 disposed at this position enables the first locking member 120 to better cooperate with the second locking member 130 to achieve the locked or unlocked state. Specifically: when the first locking member 120 and / or the second locking member 130 are pushed by the inserted member 200 and rotated towards the locked state, in the early stage of the rotation of the first locking member 120, the first elastic member 150 applies a force to the first locking member 120 to rotate towards the unlocked state, so that the first rotating shaft 190 is located in the first slot and rotates together with the second locking member 130; after the second locking member 130 rotates to the locked state, the direction of the acting force of the first elastic member 150 changes, and it applies a force to the first locking member 120 to rotate towards the locked state. The first locking member 120 continues to rotate, so that the first rotating shaft 190 is located in the second slot, and the first locking member 120 rotates to the locked state. In addition, when unlocking, the second locking member 130 rotates towards the unlocked state and drives the first locking member 120 to rotate towards the unlocked state through the connecting rod 140. In the initial stage of the rotation of the first locking member 120 towards the unlocked state, the first elastic member 150 applies a force to the first locking member 120 to rotate towards the locked state. At this time, the first rotating shaft 190 is located in the second slot; when the first locking member 120 rotates towards the unlocked state by a certain angle, the direction of the acting force of the first elastic member 150 on the first locking member 120 changes, and it applies a force to the first locking member 120 to rotate towards the unlocked state, so that the first rotating shaft 190 slides to the first slot, so that the first locking member 120 rotates to the unlocked state.

[0108] Specifically, referring to Figure 2 、 Figures 4 - 13 , in some embodiments, the first card slot 121 is sequentially provided with a relatively arranged first inner wall 121a and a second inner wall 121b along the direction away from the first axis M. When the first buckle block 211 of the inserted member 200 is inserted between the first inner wall 121a and the second inner wall 121b, the first locking member 120 is in the locked state. Preferably, the second inner wall 121b extends along the outer periphery of the first axis M, and the distance between the second inner wall 121b and the first axis M remains unchanged or gradually increases along the direction close to the first opening 122. The distance between the second inner wall 121b and the first axis M gradually increases along the direction close to the first opening 122, whereby the assembly gap between the inserted member 200 and the first locking member 120 can be adjusted.

[0109] In some embodiments, the second card slot 131 is sequentially provided with a third inner wall 131a and a fourth inner wall 131b arranged oppositely along a direction away from the second axis N. When the insert 200 is inserted between the third inner wall 131a and the fourth inner wall 131b, the second locking member 130 is in a locked state. Preferably, the fourth inner wall 131b extends along the direction from the second closed end of the second card slot 131 to the second opening 132. In the extending direction of the fourth inner wall 131b, the distance between the fourth inner wall 131b and the second axis N remains unchanged or gradually increases. In the extending direction of the fourth inner wall 131b, the distance between the fourth inner wall 131b and the second axis N gradually increases, whereby the assembly gap between the insert 200 and the second locking member 130 can be adjusted.

[0110] It should be noted that the shape of the third inner wall 131a may be the same as or different from that of the first inner wall 121a, and the shape of the fourth inner wall 131b may be the same as or different from that of the second inner wall 121b. Some preferred shapes of the first inner wall 121a and the second inner wall 121b are listed below. The third inner wall 131a may be the same as the first inner wall 121a, and the fourth inner wall 131b may be the same as the second inner wall 121b. Therefore, the specific shapes of the third inner wall 131a and the fourth inner wall 131b will not be described in detail.

[0111] Specifically, referring to Figure 10 , in some embodiments, the extending locus of the second inner wall 121b is an asymptotic locus extending around the first axis M, so that during the process of the insert 200 being inserted along the first direction X, in cooperation with the rotation of the first locking member 120, the insert 200 gradually approaches the first axis M, so that during the process of the panel 320 and the side plate 310 being connected through the insert 200 and the connection assembly 100, the panel 320 can gradually approach and abut against the side plate 310, avoiding the generation of a gap between the panel 320 and the side plate 310 after connection.

[0112] In other embodiments, the extending locus of the second inner wall 121b may be an arc locus, an involute locus or an Archimedes spiral locus. When the extending locus of the second inner wall 121b is an arc locus, preferably, the center of the arc locus is eccentrically arranged with respect to the first axis M, so that the distance between the arc-shaped second inner wall 121b and the first axis M gradually increases in the direction of the first opening 122.

[0113] Further, in some embodiments, the first inner wall 121a extends along the direction from the first closed end of the first card slot 121 to the first opening. In the extending direction of the first inner wall 121a, the distance between the first inner wall 121a and the first axis M gradually increases. Specifically, the first inner wall 121a in this embodiment is an oblique straight line that gradually moves away from the first axis M. In this way, when the insert 200 is inserted along the first direction X, the first snap block 211 of the insert 200 abuts against and pushes the first inner wall 121a, thereby driving the first locking member 120 to rotate. When the first locking member 120 rotates to a preset position, the direction of the force exerted by the first elastic member 150 to drive the first locking member 120 rotates from the first side facing the first axis M to the second side facing the first axis M. At this time, the force exerted by the first elastic member 150 to drive the first locking member 120 to rotate to the unlocking state is converted into the force to drive the first locking member 120 to rotate to the locking state, thereby driving the first locking member 120 to rotate to the locking state and making the second inner wall 121b abut against the insert 200. In other embodiments, the first inner wall 121a may be an arc line that gradually moves away from the first axis M.

[0114] It should be noted that referring to Figure 6 and Figure 7 , when the first locking member 120 is in the unlocked state, the direction of the force exerted by the first elastic member 150 on the first locking member 120 faces the first side of the first axis M; referring to Figure 9 and Figure 10 , when the first locking member 120 is in the locked state, the direction of the force exerted by the first elastic member 150 on the first locking member 120 faces the second side of the first axis M;

[0115] Wherein, the two sides opposite to the first axis M are the first side and the second side respectively.

[0116] Referring to Figure 1 , in some embodiments, during the process of connecting the panel 320 and the side plate 310 through the insert 200 and the connecting component 100, the panel 320 gradually approaches the side plate 310 and finally abuts tightly against the side plate 310. When the panel 320 abuts tightly against the side plate 310, the panel 320 cannot move relative to the side plate 310 along the first direction X. At this time, the second inner wall 121b abuts against the first snap block 211.

[0117] Further, referring to Figures 9 - 14, taking the cooperation between the first locking member 120 and the insert member 200 as an example, when the distance between the abutting section 121b1 and the first axis M gradually increases, a compensation distance S for adjusting the assembly gap between the insert member 200 and the first locking member 120 can be formed. In the installation of a drawer, this assembly gap distance can adjust the distance between the panel 320 and the side plate 310 to compensate for the machining or assembly tolerance between the panel 320 and the side plate 310, so that the connection between the panel 320 and the side plate 310 is tight and seamless.

[0118] Specifically, when the first locking member 120 rotates towards the locking state, the distance between the abutting position of the insert member 200 and the first locking member 120 and the first axis M can be gradually reduced, so that the insert member 200 gradually approaches the first axis M. Then, the panel 320 and the side plate 310 correspondingly connected by the insert member 200 and the first locking member 120 gradually approach each other to reduce the gap between the panel 320 and the side plate 310 and eliminate the fitting error. When the gap between the panel 320 and the side plate 310 that needs to be adjusted is small, the first snap block 211 moves to the middle of the first card slot 121 or the front part near the opening, and the first snap block 211 abuts against the first inner wall 121a, that is, the locking of the panel 320 and the side plate 310 can be achieved; when the gap between the panel 320 and the side plate 310 that needs to be adjusted is large, the first snap block 211 needs to move to the middle and rear part or the closed end of the first card slot 121, and the first snap block 211 abuts against the first inner wall 121a, and the locking of the panel 320 and the side plate 310 can be achieved.

[0119] Specifically, the compensation distance S cannot be too large or too small. If it is too small, it cannot be applied to the adjustment of the assembly tolerance between the panel 320 and the side plate 310 of the drawer. If it is too large, the size of the first locking member 120 will be large, and its own weight will increase. As a result, the load on the first elastic member 150 will increase, affecting the service life of the first elastic member 150 and making the structural setting unreasonable. Therefore, preferably, 1.5 mm ≤ S ≤ 4 mm, which is sufficient to compensate for the assembly tolerance between the panel 320 and the side plate 310 and will not increase the load on the first elastic member 150. Further preferably, 2 mm ≤ S ≤ 3 mm.

[0120] Further, referring to Figures 10 - 12 , when the first locking member 120 and the second locking member 130 are in the locking state, the line passing through the center of the first snap block 211 and extending along the first direction X is defined as the second reference line U, and the line passing through the center of the first snap block 211 and perpendicularly intersecting with the first axis M is defined as the first connecting line V;

[0121] The line passing through the center of the second snap block 212 and extending along the first direction M is defined as the third reference line, and the line passing through the center of the second snap block 212 and perpendicularly intersecting with the second axis N is defined as the second connecting line;

[0122] The included angle formed by the first connecting line V and the second reference line U or the second connecting line and the third reference line is θ, 0° ≤ θ ≤ θ k , where θ k is the critical angle for keeping the first locking member 120 or the second locking member 130 and the insert member 200 in the locked state and preventing the insert member 200 from being pulled out of the first locking member 120 or the second locking member 130.

[0123] Specifically, taking the cooperation between the first locking member 120 and the insert member 200 as an example, when the first locking member 120 and the insert member 200 are in the locked state, the line passing through the center of the first buckle block 211 and extending along the first direction X is defined as the second reference line U, and the line passing through the center of the first buckle block 211 and perpendicularly intersecting with the first axis M is defined as the first connecting line V. The included angle formed by the first connecting line V and the second reference line U is θ, 0° ≤ θ ≤ θ k , where θ k is the critical angle for keeping the first locking member 120 and the insert member 200 in the locked state and preventing the insert member 200 from being pulled out of the first locking member 120. At this time, when pulling the insert member 200 in the direction opposite to the first direction X, the force exerted by the insert member 200 on the first locking member 120 in the direction of making the first locking member 120 rotate in the unlocking direction is small and cannot overcome the inertia of the first locking member 120 itself and / or the elastic force of the first elastic member 150 driving the first locking member 120 to rotate in the locking direction. Therefore, it cannot drive the first locking member 120 to rotate in the unlocking direction and cannot pull the insert member 200 out of the first slot 121 of the first locking member 120, enabling the first locking member 120 to maintain the locked state without the need for bolts or other limiting members.

[0124] The included angle θ between the first connecting line V and the second reference line U cannot be too large. The closer θ is to 0°, the smaller the force exerted by the insert member 200 on the first locking member in the rotational direction, which is more conducive to maintaining the locked state of the insert member 200 on the first locking member 120. Preferably, θ = 0°, and the first connecting line V coincides with the second reference line U. At this time, the locked state of the insert member 200 and the first locking member 120 is the most stable. It should be noted that even if the first connecting line V does not coincide with the second reference line U, under the action of the elastic force exerted by the first elastic member on the first locking member 120 or under the action of the inertia of the first locking member 120 itself, the locked state of the insert member 200 and the first locking member 120 can also be maintained, preventing the insert member 200 from being pulled out of the first locking member 120. At this time, θ k is a relatively small angle, generally not exceeding 15°.

[0125] Specifically, refer to Figure 10 、 Figure 11and Figure 13 Taking the line that extends along the first direction X and perpendicularly intersects the first axis M as the first reference line K. In some embodiments, the tangent J of any point on the abutting section 121b1 forms an angle α with the first reference line K, where 50° ≤ α ≤ 90°. Thus, the rotation axis of the first locking member 120 is close to the first reference line K, and the rotation axes of the first buckle block 211 and the first locking member 120 are arranged substantially along the first direction X before and after. So that in the locked state, the interaction force between the insert 200 and the first locking member 120 is easily offset, and it is easier to form a force balance state, making the locked state between the first locking member 120 and the insert 200 more stable and the structure more compact. The closer α is to 90°, the closer the force exerted by the insert 200 on the first locking member 120 in the rotation direction is to 0. Without the action of the first elastic member 150, a force balance state can be formed between the first locking member 120 and the insert 200, making the first locking member 120 unable to rotate in the unlocking direction and the first buckle block 211 unable to be pulled out from the first card slot 121.

[0126] When pulling the insert 200, when the force exerted by the insert 200 on the first locking member 120 in the rotation direction is small, the elastic force of the first elastic member 150 can be used to offset the force transmitted by the insert 200 to the first locking member 120 in the rotation direction to maintain the locked state of the first locking member 120. Specifically, when the first locking member 120 and the insert 200 reach the locked state, the first elastic member 150 exerts an elastic force on the first locking member 120 to rotate in the locking direction, and this elastic force can offset the force transmitted by the insert 200 to the first locking member 120 to rotate in the unlocking direction. Thus, when pulling the insert 200, it will not drive the first locking member 120 to rotate, so as to ensure that when pulling the panel 320, the panel 320 will not become loose, and further prevent the panel 320 from detaching from the side plate 310, thereby improving the user experience and ensuring the safe and reliable use of the drawer.

[0127] In addition, the cooperation between the second locking member 130 and the insert 200 is similar to the cooperation between the first locking member 120 and the insert 200, and will not be elaborated here.

[0128] Refer to Figure 2 、 6, 7, 9, and 10. In some embodiments, the first elastic member 150 is a torsion spring. The torsion spring has a spring body, a first torsion arm, and a second torsion arm. Both the first torsion arm and the second torsion arm are provided on the spring body. The first torsion arm is connected to the substrate 110, and the second torsion arm is connected to the first locking member 120. That is, the first elastic member 150 can be made of a torsion spring. The elastic force provided by the torsion spring is an outwardly pushing elastic force. The torsion spring can drive the first locking member 120 to rotate in the direction of the locking state, so that the first locking groove 121 of the first locking member 120 catches the first snap block 211 to reach the locking state. In other embodiments, the first elastic member 150 can also be a compression spring, a tension spring, etc.

[0129] In some embodiments, referring to Figure 2 , 4 and 5, in order to limit the rotation range of the first locking member 120, in this embodiment, a first limiting surface 123 and a second limiting surface 124 are provided on the first locking member 120, and a first blocking surface 111 and a second blocking surface 112 are provided on the substrate 110;

[0130] When the first limiting surface 123 abuts against the first blocking surface 111, the first locking member 120 is in the unlocked state, and the first locking member 120 can be made to abut against and dock with the first blocking surface 111 to maintain the unlocked state;

[0131] When the second limiting surface 124 abuts against the second blocking surface 112, the first locking member 120 is in the locked state; it should be noted that when the first locking member 120 is in the locked state, the second limiting surface 124 does not necessarily abut against the second blocking surface 112. When the first locking member 120 is in the locked state, it may not reach the abutting position of the second limiting surface 124 and the second blocking surface 112, and the locking function can be achieved.

[0132] In some embodiments, referring to Figure 2 , 4 and 5, in order to limit the rotation range of the second locking member 130, in this embodiment, a third limiting surface 133 and a fourth limiting surface 134 are provided on the second locking member 130, and a third blocking surface 114 and a fourth blocking surface 115 are provided on the substrate 110;

[0133] When the third limiting surface 133 abuts against the third blocking surface 114, the second locking member 130 is in the unlocked state, and the second locking member 130 can be made to abut against and dock with the third blocking surface 114 to maintain the unlocked state;

[0134] When the fourth limiting surface 134 abuts against the fourth blocking surface 115, the second locking member 130 is in a locked state; it should be noted that when the second locking member 130 is in the locked state, the fourth limiting surface 134 and the fourth blocking surface 115 do not necessarily abut. During the rotation of the second locking member 130 towards the locked state, it may not reach the abutting position of the fourth limiting surface 134 and the fourth blocking surface 115, and the locking function can still be achieved.

[0135] Reference Figure 2 , Further, the connection assembly 100 in this embodiment is provided with a first limiting portion 170 and a second limiting portion 170a for limiting the insertion of the insert 200 along the first direction X. The first limiting portion is provided on one side of the first locking member 120 in the first direction, and the second limiting portion 170a is provided on one side of the second locking member in the first direction to prevent the insert 200 from moving in the second direction Y or the third direction Z during the insertion along the first direction X, where the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0136] It should be noted that the first limiting portion 170 and the second limiting portion 170a can be the same or different. The structure of the first limiting portion 170 is listed below, and the second limiting portion 170a can be the same as it, so no further detailed description will be given.

[0137] Specifically, the first limiting portion 170 in this embodiment includes a first limiting wall 171 and a second limiting wall 172 that extend along the first direction X and are arranged oppositely in the third direction Z. The first limiting wall 171 and the second limiting wall 172 are used to limit the insertion of the insert 200 along the first direction X. Among them, a slot 113 is formed between the first limiting wall 171 and the second limiting wall 172, and the insert 200 can penetrate into the slot 113. It should be noted that the first limiting wall 171 forms a first blocking surface 111, and the second limiting wall 172 forms a second blocking surface 112 in this embodiment.

[0138] Specifically, the first limiting wall 171 and the second limiting wall 172 in this embodiment are provided on the substrate 110.

[0139] It can be understood that the first limiting portion 170 can also be provided with a third limiting wall 173 in the second direction Y to prevent the insert 200 from moving in the second direction Y during the movement along the first direction X.

[0140] Reference Figure 2 and 6, in some embodiments, the insert 200 is provided with two first adjusting mechanisms 220. One first adjusting mechanism 220 is provided on each of the first plugging block 231 and the second plugging block 232. The first adjusting mechanism 220 cooperates with the third limiting wall 173 and is used to adjust the position of the first plugging block 231 or the second plugging block 232 relative to the slot 113 in the second direction Y after the first plugging block 231 or the second plugging block 232 is inserted into the slot 113 of the first limiting portion 170 or the second limiting portion 170a. Specifically, the first adjusting mechanism 220 in this embodiment is a bolt, and the bolt is threadedly connected to the plugging block 230. When there is a margin between the first plugging block 231 or the second plugging block 232 and the third limiting wall 173 of the first limiting portion 170 or the second limiting portion 170a, resulting in looseness of the panel 320 relative to the side plate 310 in the second direction Y, the first adjusting mechanism 220 can be adjusted to make the first adjusting mechanism 220 abut against the third limiting wall 173 in the third direction Z.

[0141] Reference Figure 2 and Figure 15 , further, this embodiment further includes a fixing plate 181 and a second adjusting mechanism 180. The substrate 110 is connected to the fixing plate 181 and can slide relative to the fixing plate 181 in the third direction Z. The second adjusting mechanism 180 is connected to the fixing plate 181 and the substrate 110, and the second adjusting mechanism 180 is used to adjust the relative position between the substrate 110 and the fixing plate 181. The second adjusting mechanism 180 can adjust the position between the substrate 110 and the fixing plate 181. The connecting component 100 is connected to the plate member to be connected through the fixing plate 181, such as the side plate 310 of the drawer. Thus, the position between the connecting component 100 and the side plate 310 in the third direction Z can be adjusted through the second adjusting mechanism 180.

[0142] Specifically, the fixing plate 181 is provided with a plurality of adjusting slots 181a. The second adjusting mechanism 180 includes a first adjusting nail 182. The first adjusting nail 182 is rotatably connected to the substrate 110. The first adjusting nail 182 is provided with a spiral adjusting convex block 182a. The plurality of adjusting slots 181a are arranged in sequence along the third direction Z. The adjusting convex block 182a can extend into the adjusting slot 181a. By rotating the first adjusting nail 182, the relative position between the fixing plate 181 and the substrate 110 in the third direction Z can be adjusted, so as to adjust the relative position between the connecting plate and the insert 200 in the third direction Z. In other embodiments, the second adjusting mechanism 180 can also select other adjusting structures such as eccentric rivets to adjust the relative position between the substrate 110 and the fixing plate 181. The fixing plate 181 is provided with a sliding slot 181b, and the substrate 110 is slidably connected to the sliding slot 181b to slide on the fixing plate 181.

[0143] Reference Figure 2 - 15, based on the structure of the first locking member 120 described above, in this embodiment, in order to insert the insert member 200 along the first direction X and lock it together with the first locking member 120 and the second locking member 130, and enable the insert member 200 to provide multiple locking positions, the second locking member 130 provided in this embodiment may have the same or different structure from the above-mentioned first locking member 120. In addition, the first locking member 120 and the second locking member 130 may also be other locking structures, as long as they can achieve locking and unlocking with the insert member 200.

[0144] Similarly, in order to realize the connection between the insert member 200 and the first locking member 120 and the second locking member 130, after the insert member 200 is inserted into the slot 113, the first buckle block 211 and the second buckle block 212 are respectively locked with the first locking member 120 and the second locking member 130 in a one-to-one correspondence.

[0145] In some embodiments, further, the second locking member 130 is connected with a second elastic member 160. One end of the second elastic member 160 is connected with the second locking member 130, and the other end is connected with the substrate 110, which can provide a force for the second locking member 130 to rotate in the unlocking direction and the locking direction, without the need to use multiple elastic members or increase the cooperation of the limit and the locking member, thus simplifying the structure. One elastic member can simultaneously realize driving the second locking member 130 to rotate to the unlocking state or the locking state.

[0146] In some embodiments, preferably, the first elastic member 150 and the second elastic member 160 are respectively located on both sides of the connecting rod 140. The first elastic member 150 and the second elastic member 160 cooperate to realize the unlocking and locking of the first locking member 120 and the second locking member 130. Under the combined action of the first elastic member 150 and the second elastic member 160, the rotation of the first locking member 120 and the second locking member 130 is more coordinated. Specifically: in the unlocking state, the first elastic member 150 exerts a thrust force on the first locking member 120 to rotate it to the unlocking state, and the second elastic member 160 exerts a pulling force on the second locking member 130 to rotate it in the unlocking state direction; in the locking state, the first elastic member 150 exerts a pulling force on the first locking member 120 to rotate it to the locking state, and the second elastic member 160 exerts a thrust force on the second locking member 130 to rotate it in the locking state direction.

[0147] In addition, an unlocking groove 135 for cooperating with a screwdriver is provided on the first locking member 120 or the second locking member 130. By inserting the screwdriver into the unlocking groove 135 and rotating the first locking member 120 or the second locking member 130 in the direction of the unlocking state, the unlocking of the first locking member 120 and the second locking member 130 can be realized under the drive of the connecting rod 140. Preferably, the unlocking groove 135 is provided on the second locking member 130 in this embodiment.

[0148] In other embodiments, a third locking member may also be included. It can be understood that the number of locking members is at least two. Generally, at least two locking members can be arranged in sequence along one direction. For example, they can be arranged in sequence along the height direction of the side plate, so as to prevent the side plate from being unable to be tightly fixed to the panel when the side plate is relatively high. In addition, at least two locking members can be connected by a connecting rod or other transmission mechanisms, so that when the insert is inserted against the locking members, at least two locking members can rotate synchronously to lock the insert.

[0149] In summary, referring to Figures 1 - 15 , the working principle of a drawer 300, a drawer connection device, and a connection assembly 100 provided in this embodiment is as follows:

[0150] First, connect the insert 200 to the panel 320 of the drawer, and connect the connection assembly 100 to the side plate 310 of the drawer. When installing the panel 320 and the side plate 310, the side of the panel 320 connected with the insert 200 faces the side plate 310 and approaches the side plate 310, so that the insert 200 can be aligned with the slot 113 and inserted along the first direction X;

[0151] When the insert 200 is about to be inserted into the connection assembly 100, the first locking member 120 and the second locking member 130 are still in the unlocked state. The first elastic member 150 and the second elastic member 160 respectively apply forces to the first locking member 120 and the second locking member 130 to rotate towards the unlocked state, and the first opening 122 and the second opening 132 both face the insert 200. The first buckle block 211 can pass through the first opening 122 and abut against the first inner wall 121a of the first slot 121, and the second buckle block 212 can pass through the second opening 132 and abut against the third inner wall 131a of the second slot 131. Under the acting force of the insert 200 abutting and the action of the connecting rod 140, the first locking member 120 and the second locking member 130 can rotate together from the unlocked state towards the locked state;

[0152] During the rotation of the first locking member 120 towards the locked state (the force-bearing situation during the rotation of the second locking member 130 is the same as that of the first locking member 120. Here, the first locking member 120 is taken as an example, and the second locking member 130 will not be elaborated), since the position where the first elastic member 150 is connected to the first locking member 120 rotates with the first locking member 120, therefore, the direction of the force exerted by the first elastic member 150 on the first locking member 120 gradually changes. Specifically, the direction of the force exerted by the first elastic member 150 on the first locking member 120 changes from the first side facing the first axis M in the unlocked state to the second side facing the first axis M in the locked state;

[0153] Finally, under the action of the first elastic member 150 and the second elastic member 160, the first locking member 120 and the second locking member 130 rotate towards the locking state respectively, and the second inner wall 121b of the first card slot 121 abuts against the first buckle block 211, and the fourth inner wall 131b of the second card slot 131 abuts against the second buckle block 212. Under the abutting action of the second inner wall 121b and the fourth inner wall 131b, the force exerted by the insert 200 on the second inner wall 121b (the force in the direction opposite to the first direction X) is smaller than the force acting in the rotation direction of the first locking member 120, and the force exerted by the insert 200 on the fourth inner wall 131b (the force in the direction opposite to the first direction X) is also smaller than the force acting in the rotation direction of the second locking member 130, and it cannot overcome the elastic forces of the first elastic member 150 and the second elastic member 160 and the inertia of the first locking member 120 and the second locking member 130, thereby realizing the self-locking of the first locking member 120, the second locking member 130 and the insert 200;

[0154] In addition, due to the inconsistent fit of the first locking member 120 and the second locking member 130 during manufacturing or assembly, it is easy to cause that when the first locking member 120 and the second locking member 130 rotate towards the locking state, the first locking member 120 and the second locking member 130 cannot both lock the insert 200. For example, after the fourth inner wall 131b abuts against the second buckle block 212, the second locking member 130 is in the locking state and cannot rotate any further, but the first locking member 120 and the first buckle block 211 are not yet locked, resulting in a gap between the panel 320 and the side plate 310 and loosening. Therefore, in this embodiment, a compensation groove 143 is provided. After the second locking member 130 reaches the locking state, the first locking member 120 can continue to rotate towards the locking state through the compensation groove 143 without considering the limitation of the link structure composed of the link 140 and the second locking member 130. When the first rotating shaft 190 slides to the second slot position, the second inner wall 121b can abut against the first buckle block 211, so that the first locking member 120 reaches the locking state to realize the stable buckling of the insert 200 and the connection assembly 100;

[0155] When unlocking is required, insert a screwdriver into the unlocking slot 135 and rotate the second locking member 130 in the direction of the unlocking state. Driven by the connecting rod 140, the first locking member 120 can be simultaneously rotated in the unlocking direction. When the second locking member 130 rotates to change the direction of the force of the second elastic member 160, the second elastic member 160 applies a force to the second locking member 130 to rotate it towards the unlocking state, and the second locking member 130 reaches the unlocking state. At this time, the first locking member 120 may not have reached the unlocking state yet; then, when the first locking member 120 rotates to change the direction of the force of the first elastic member 150, the first elastic member 150 applies a force to the first locking member 120 to rotate it towards the unlocking state and drives the first locking member 120 to continue rotating, so that the first rotating shaft 190 slides into the first slot position to enable the first locking member 120 to reach the unlocking state.

[0156] In summary, the connecting component 100, the drawer connecting device and the drawer provided in the present application are provided with a first locking member 120 and a second locking member 130 rotatably mounted on the base plate 110, and the first locking member 120 and the second locking member 130 are connected by a connecting rod 140. Thus, when the first locking member 120 and / or the second locking member 130 are abutted and rotated by the inserted member 200, the first locking member 120 and the second locking member 130 can rotate together, so that they can both be locked with the inserted member 200, increasing the range of plate locking and avoiding the problem of loosening caused by local concentrated stress on the plate.

[0157] In addition, the present application provides that the first elastic member 150 is connected to the first locking member 120. When the first locking member 120 is in the unlocking state or the locking state, the first locking member 120 can be kept in the unlocking state or the locking state under the action of the first elastic member 150 to avoid loosening. Moreover, when the first locking member 120 is abutted by the inserted member 200 and switches from the unlocking state to the locking state, the force applied by the first elastic member 150 to the first locking member 120 changes from the direction of driving the first locking member 120 to rotate towards the unlocking state at the beginning to the force of driving the first locking member 120 to rotate towards the locking state, thus simplifying the structure of the connecting component 100, and one elastic member can simultaneously perform the functions of driving unlocking and locking.

[0158] Finally, to avoid the problem that both the first locking member 120 and the second locking member 130 cannot be rotated to the locked state, a compensation groove 143 is provided at the first end 141 of the first locking member 120 or the connecting rod 140 of the present application. When the second locking member 130 and / or the first locking member 120 is abutted and rotated by the insert 200 moving in the first direction X, and the second locking member 130 is locked with the insert 200, since the second locking member 130 cannot continue to rotate at this time, and there is no locking between the first locking member 120 and the insert 200 yet. At this time, the first rotating shaft 190 can be driven by the first elastic member 150 to slide along the compensation groove 143, so that the first locking member 120 can further rotate in the direction of the locked state, thereby locking with the insert 200, avoiding the problem that both the first locking member 120 and the second locking member 130 cannot lock the insert 200 due to the mismatch between the first locking member 120 and the second locking member 130.

[0159] This specification discloses the present application with reference to the accompanying drawings, and also enables those skilled in the art to implement the present application, including manufacturing and using any device or system, adopting appropriate materials, and using any combined methods. The scope of the present application is defined by the claimed technical solution and includes other examples that occur to those skilled in the art. As long as such other examples include structural elements that are not different from the literal language of the claimed technical solution, or such other examples contain equivalent structural elements that have no substantial difference from the literal language of the claimed technical solution, then such other examples should be considered to be within the scope of protection determined by the claimed technical solution of the present application.

Claims

1. A connection assembly, characterized in that: include: substrate; A first locking member, the first locking member is rotatably connected to the base plate around a first axis; a second locking member, the second locking member being rotatably connected to the base plate about a second axis; A connecting rod, the connecting rod having a first end and a second end, the first end being rotatably connected to the first locking member, and the second end being rotatably connected to the second locking member; as well as a first elastic member, one end of which is connected to the first locking member, and the other end of which is connected to the base plate, and is used to provide a force for the first locking member to rotate between an unlocked state and a locked state; The first locking member, the second locking member or the connecting rod is provided with a compensation groove; Wherein, the compensation groove is configured as follows: when the first locking member and / or the second locking member is pushed against by an insert member moving along a first direction, and the second locking member is rotated to a locking state, the first locking member can be rotated to a locking state through the compensation groove under the action of the first elastic member.

2. The connection assembly according to claim 1, characterized in that: The first locking member or the first end is provided with the compensation groove, the first locking member and the first end are rotatably connected via a first rotating shaft, and the first rotating shaft is inserted into the compensation groove; Wherein, the first locking member and / or the second locking member is pushed against by the insert member moving along the first direction, and when the second locking member is rotated to a locking state, the first rotating shaft can slide along the compensation groove to rotate the first locking member to a locking state.

3. The connection assembly according to claim 2, characterized in that: The compensation groove has a first groove position and a second groove position, wherein, when the first locking member is rotated to an unlocked state, the first elastic member applies a force to the first locking member to rotate in the direction of the unlocked state, and at this time, the first rotating shaft slides to the first groove position; when the first locking member is rotated to a locked state, the first elastic member applies a force to the second locking member to rotate in the direction of the locked state, and at this time, the first rotating shaft slides to the second groove position.

4. The connection assembly according to claim 3, characterized in that: The compensation groove is located on the first end of the connecting rod, and the first groove and the second groove are arranged in sequence along the length direction of the connecting rod. One end of the first rotating shaft is connected to the first locking piece, and the other end protrudes from the compensation groove; the second groove is closer to the second end relative to the first groove.

5. The connection assembly according to any one of claims 1 to 4, characterized in that: The first locking member is provided with a first slot, one end of which is provided with a first opening, and the other end is a first closed end; the second locking member is provided with a second slot, one end of which is provided with a second opening, and the other end is a second closed end; When the first locking member is in a locked state, the inserting member is inserted into the first slot; when the second locking member is in a locked state, the inserting member is inserted into the second slot.

6. The connection assembly according to claim 5, characterized in that: The first slot is provided with a first inner wall and a second inner wall which are arranged opposite to each other in sequence in a direction away from the first axis, and when the first locking member is in a locked state, the inserting member is inserted between the first inner wall and the second inner wall; The second slot is provided with a third inner wall and a fourth inner wall which are arranged opposite to each other in sequence along a direction away from the second axis. When the second locking member is in a locking state, the inserting member is inserted between the third inner wall and the fourth inner wall.

7. The connection assembly according to claim 6, characterized in that: The second inner wall extends from the first closed end to the first opening of the first slot, and in the extending direction of the second inner wall, the distance between the second inner wall and the first axis remains unchanged or gradually increases; and / or The fourth inner wall extends from the second closed end of the second slot to the second opening. In the extending direction of the fourth inner wall, the distance between the fourth inner wall and the second axis remains unchanged or gradually increases.

8. The connection assembly according to claim 6, characterized in that: The first inner wall extends from the first closed end to the first opening, and in the extending direction of the first inner wall, the distance between the first inner wall and the first axis gradually increases; and / or The third inner wall extends from the second closed end to the second opening, and in the extending direction of the third inner wall, the distance between the third inner wall and the second axis gradually increases.

9. The connection assembly according to any one of claims 1 to 4, characterized in that: When the first locking member is in an unlocked state, the direction of the force applied by the first elastic member to the first locking member is toward the first side of the first axis; When the first locking member is in a locked state, the direction of the force applied by the first elastic member to the first locking member is toward the second side of the first axis; The two opposite sides of the first axis are the first side and the second side respectively.

10. The connection assembly according to any one of claims 1 to 4, characterized in that: It also includes a first limiting portion and a second limiting portion for limiting the insertion of the insert along the first direction, the first limiting portion is arranged on a side of the first locking member in the first direction, and the second limiting portion is arranged on a side of the second locking member in the first direction.

11. The connection assembly according to claim 5, characterized in that: The insert is provided with a first buckle block and a second buckle block. When the insert is inserted into the connecting assembly along a first direction, the first buckle block is inserted into the first clamping slot, and the second buckle block is inserted into the second clamping slot, so that the first locking member and the second locking member are locked with the insert; When the first locking member and the second locking member are in a locked state: A line passing through the center of the first buckle block and extending along the first direction is defined as a second reference line, and a line passing through the center of the first buckle block and perpendicularly intersecting the first axis is defined as a first connecting line; A line passing through the center of the second buckle block and extending along the first direction is defined as a third reference line, and a line passing through the center of the second buckle block and perpendicularly intersecting the second axis is defined as a second connecting line; The angle between the first connecting line and the second reference line or between the second connecting line and the third reference line is θ, 0°≤θ≤θ k , where θ k A critical angle is set so that the first locking member or the second locking member and the inserting member are kept in a locked state and the inserting member cannot be pulled out from the first locking member or the second locking member.

12. The connection assembly according to any one of claims 1 to 4, characterized in that: It also includes a second elastic member, one end of which is connected to the second locking member, and the other end of which is connected to the base plate, for providing a force for the second locking member to rotate to an unlocked state and a locked state.

13. The connection assembly according to claim 12, characterized in that The first elastic member and the second elastic member are respectively located on two sides of the connecting rod.

14. The connection assembly according to any one of claims 1 to 4, characterized in that: The first end is rotatably connected to the first locking member around a third axis, and the second end is rotatably connected to the second locking member around a fourth axis; The compensation tank is configured as follows: When the first locking member or the first end is provided with the compensation groove, the third axis can move along the compensation groove so that the first locking member rotates to a locking state; When the second locking member or the second end is provided with the compensation groove, the fourth axis can move along the compensation groove so that the first locking member is rotated to a locking state.

15. A drawer connection device, characterized in that: comprising an insert and a connection assembly according to any one of claims 1 to 14; The insert can be inserted into the connecting assembly along the first direction and resist the rotation of the first locking member and / or the second locking member. When the first locking member and / or the second locking member are rotated to a locked state, the insert is locked to the first locking member and the second locking member.

16. The drawer connection device according to claim 15, characterized in that: The insert is provided with a first buckle block and a second buckle block, the first locking member is provided with a first clamping slot having a first opening, and the second locking member is provided with a second clamping slot having a second opening; When the first buckle block is inserted into the first slot from the first opening and the first buckle block is restricted in the first slot, the first locking member and the inserting member reach a locking state; When the second buckle block is inserted into the second buckle slot from the second opening and the second buckle block is restricted in the second buckle slot, the second locking member and the inserting member reach a locking state.

17. A drawer, characterized in that: The drawer connecting device comprises a side panel, a panel and the drawer connecting device as claimed in any one of claims 15 to 16, wherein the panel is connected to the insert, and the side panel is connected to the connecting component.

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