A drawer connection locking mechanism

Abstract

The drawer cabinet connecting and locking mechanism provided in this application includes a fixed slide rail, a movable slide rail, a connecting frame, and a connecting and locking assembly. The fixed slide rail is installed on the inside of the cabinet body, and the movable slide rail slides on the fixed slide rail. The connecting and locking assembly is located at the first end of the movable slide rail and includes a positioning post and a connecting latch. The connecting frame is installed at the bottom of the drawer and includes a frame body, a locking hole, and a positioning block. The locking hole and the positioning block are both located on the frame body, and the positioning block has a positioning groove. The locking hole can engage with the connecting latch, and the positioning post can extend into the positioning groove to position the drawer on the movable slide rail. Compared with the prior art, this application uses a positioning post to cooperate with the positioning groove, making the cooperation between the connecting latch and the locking hole more precise. This results in a more accurate installation position between the drawer and the movable slide rail, effectively preventing the drawer from misaligning during the sliding process of the movable slide rail, and ensuring high reliability.

Description

Technical Field

[0001] This application relates to the field of furniture technology, and in particular to a drawer connection locking mechanism. Background Technology

[0002] A chest of drawers is a common type of furniture, generally consisting of drawers and a cabinet body, with the drawers sliding within the cabinet body. To facilitate the sliding of the drawers relative to the cabinet body, a corresponding slide rail assembly is provided between the drawers and the cabinet body. This slide rail assembly includes at least one pair of movable slide rails and at least one pair of fixed slide rails. The fixed slide rails are located on the inside of the cabinet body, and the movable slide rails slide on them. The drawers are connected to the movable slide rails. To prevent the drawers from detaching from the movable slide rails during use, plastic latches are usually installed on the movable slide rails, with corresponding small holes on the drawers. The plastic latches can be inserted into the small holes on the drawer side panel to prevent the drawer from detaching from the movable slide rails. However, plastic latches are prone to loosening from the small holes, causing the drawer to become misaligned and obstructed from sliding. Furthermore, they are difficult to disassemble and assemble, making them inconvenient to operate and only usable on certain slide rails. Therefore, this type of chest of drawers has relatively low reliability.

[0003] Therefore, the above problems need to be addressed. Summary of the Invention

[0004] The purpose of this application is to provide a drawer connection locking mechanism that has high reliability.

[0005] To achieve the above objectives, the drawer connection locking mechanism provided in this application includes at least one pair of fixed slide rails, at least one pair of movable slide rails, a connecting frame, and a connecting locking assembly. The fixed slide rails are used to be installed on the inner side of the drawer cabinet body, and the movable slide rails slide on the fixed slide rails. The connecting locking assembly includes a positioning post and a connecting latch. The positioning post and the connecting latch are both located at the first end of the movable slide rail. The connecting frame is located at the bottom of the drawer of the drawer cabinet. The connecting frame includes a frame body, a locking hole, and a positioning block. The locking hole and the positioning block are both located on the frame body. The positioning block has a positioning groove. The locking hole can engage with the connecting latch. The positioning post can extend into the positioning groove to position the drawer on the movable slide rail.

[0006] Compared with existing technologies, this application uses a positioning post to cooperate with a positioning groove, which makes the installation position between the drawer and the sliding slide more precise, and the cooperation between the connecting latch and the engagement hole more precise. This effectively prevents the drawer from misaligning during the sliding of the sliding slide, thereby reducing wear between the connecting latch and the engagement hole on the drawer. At the same time, the presence of the positioning post and positioning groove can also share some of the impact load, reducing the mutual impact force between the connecting latch and the engagement hole. This allows the drawer to be more reliably connected to the sliding slide, resulting in high reliability.

[0007] Specifically, the positioning groove has an inlet cavity at one end near the positioning post. The opening of the inlet cavity gradually increases in size from the end of the positioning groove away from the positioning post to the end near the positioning post. This design facilitates the positioning post sliding into the positioning groove along the inner wall of the inlet cavity, improving positioning convenience and reducing wear between the positioning post and the inner wall of the positioning groove. This extends the service life of both the positioning post and the positioning groove, enhancing reliability.

[0008] Specifically, the inner wall of the guide cavity includes a first curved surface and a second curved surface. The first curved surface extends along a first direction, and the second curved surface extends along a second direction. The first direction is the sliding direction of the movable slide rail, and the second direction is perpendicular to the first direction. The straight line containing the second direction is parallel to the plane defined by the bottom surface of the drawer. The average radius of curvature of the first curved surface is greater than the average radius of curvature of the second curved surface. With this configuration, even if the drawer has a slight placement deviation in the first direction, the positioning post can quickly enter the positioning groove along the first curved surface of the guide cavity, thereby adjusting the drawer's installation position to the correct position. This results in a high tolerance for installation errors and higher reliability in use.

[0009] Specifically, the connecting latch is movably engaged with the engaging hole, and the connecting latch can extend out of the engaging hole. The portion of the connecting latch extending out of the engaging hole has a first driving ramp. The first driving ramp can abut against the inner wall of the engaging hole or the frame, thereby driving the connecting latch away from the engaging hole. This design facilitates positioning the drawer on the sliding rail by mutual pressure between the frame and the first driving ramp, allowing the connecting latch to avoid the frame before entering the engaging hole. Alternatively, it facilitates separating the drawer from the sliding rail by mutual pressure between the engaging hole and the first driving ramp, causing the connecting latch to disengage from the engaging hole and thus releasing the drawer from the sliding rail.

[0010] Specifically, the frame includes a second driving ramp located below the engaging hole. The second driving ramp abuts against the first driving ramp, thereby driving the connecting latch away from the frame and into the engaging hole. This arrangement enhances the driving force that drives the connecting latch away from the engaging hole, and the abutting and pressing between the first and second driving ramps results in a larger contact area, reducing wear on the first driving ramp and thus improving reliability.

[0011] Specifically, the portion of the connecting latch extending beyond the engagement hole is provided with a stop. This stop abuts against the circumferential inner wall of the engagement hole, thereby preventing the connecting latch from separating from the engagement hole. This design ensures that the stop tends to prevent the connecting latch from exiting the engagement hole, enhancing the connection reliability between the connecting latch and the engagement hole, and thus improving the reliability of use.

[0012] Specifically, the connecting locking assembly also includes a movable lever and a release button. The movable lever is connected to the first end of the movable slide rail, the connecting latch is disposed between the two ends of the movable lever, and the release button is disposed at the end of the movable lever away from the fixed slide rail. The release button is used to drive the movable lever to swing relative to the connecting bracket, thereby driving the connecting latch to disengage from the engagement hole. With this configuration, when manually pulling the drawer upwards fails to separate the drawer from the movable slide rail, the release button can be used to drive the connecting latch to disengage from the engagement hole to release the drawer, thus enhancing the reliability of use.

[0013] Specifically, the movable paddle and the first end of the movable slide rail are integrally formed. This design enhances the connection strength between the movable paddle and the movable slide rail, increasing the range of motion of the movable paddle and thus improving its reliability.

[0014] Specifically, the second end of the movable slide rail is provided with a fixed hook, and the drawer has a fixed bracket at the end near the fixed hook. The fixed bracket includes a fixing hole, and the fixed hook can hook into the fixing hole. This arrangement can fix both the first and second ends of the drawer to the movable slide rail, improving connection reliability and further limiting the drawer's movement to reduce misalignment, thereby improving reliability in use.

[0015] Specifically, the positioning post and the connecting latch are both integrally formed with the movable slide rail, or the positioning post and the connecting latch are detachably connected to the movable slide rail. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 An assembly diagram of the drawer connection locking mechanism provided in this application embodiment being assembled in a drawer cabinet;

[0018] Figure 2 for Figure 1A portion of the AA sectional view;

[0019] Figure 3 for Figure 1 BB cross-sectional view;

[0020] Figure 4 for Figure 3 A magnified view of a section at point D;

[0021] Figure 5 for Figure 1 CC section view;

[0022] Figure 6 for Figure 5 A magnified view of a section at point E in the middle;

[0023] Figure 7 A schematic diagram illustrating the drawer connection locking mechanism provided in this application embodiment, after assembling it in a drawer cabinet with some of the cabinet body panels removed, and after removing some of the drawer panel panels.

[0024] Figure 8 A schematic diagram of the drawer connection locking mechanism provided in this application embodiment connected to the drawer;

[0025] Figure 9 A schematic diagram of the assembly of the fixed slide rail and the movable slide rail of the drawer connection locking mechanism provided in the embodiments of this application;

[0026] Figure 10 A perspective view of the movable slide rail of the drawer connection locking mechanism provided in an embodiment of this application.

[0027] The attached figures are labeled as follows:

[0028] 100 - Drawer connection locking mechanism; 110 - Cabinet body; 111 - Support plate; 120 - Drawer; 121 - Front panel; 122 - Side panel; 123 - Bottom plate; 124 - Tail plate; 125 - Fixed bracket; 1251 - Fixed hole; 130 - Fixed slide rail; 140 - Movable slide rail; 141 - First end of movable slide rail; 142 - Second end of movable slide rail; 143 - Fixed hook; 150 - Connecting bracket; 151 - Frame body; 151 - Second drive ramp; 152 - Engaging hole 153-Positioning block, 1531-Positioning groove, 1532-Inlet cavity section, 1532A-First curved surface, 1532B-Second curved surface, 160-Connecting locking assembly, 161-Positioning pin, 162-Connecting latch, 1621-First driving inclined surface, 1622-Stop platform, 163-Modible lever, 1631-First bending section, 1632-Second bending section, 1633-Third bending section, 164-Release button, 165-Mounting base, 170-Connecting thread. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0030] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc. (if present), indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the embodiments of this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. Furthermore, the terms "first," "second," and "third" are used only for descriptive purposes such as distinguishing similar objects, and should not be construed as indicating or implying relative importance or order.

[0031] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0032] Please see Figures 1-2 as well as Figures 7-10The drawer connection locking mechanism 100 provided in this embodiment is installed in a drawer cabinet, which includes a cabinet body 110 and drawers 120. The cabinet body 110 includes two support plates 111. The drawer 120 includes a front panel 121, two side panels 122, a bottom plate 123, and a rear plate 124. The two side panels 122 are vertically arranged on opposite sides of the bottom plate 123 and are parallel to each other. The front panel 121 and the rear plate 124 are also vertically arranged on the bottom plate 123, and are arranged opposite to each other and are parallel to each other. The front panel 121 is also connected to the two side panels 122, and the rear plate 124 is also connected to the two side panels 122. The drawer connection locking mechanism 100 includes a fixed slide rail 130, a movable slide rail 140, a connecting bracket 150, and a connection locking assembly 160. Specifically, the fixed slide rail 130 is connected to the support plate 111 by screws. The movable slide rail 140 slides on the fixed slide rail 130. A connecting locking assembly 160 is located at the first end 141 of the movable slide rail 140. The connecting locking assembly 160 includes a positioning post 161 and a connecting latch 162. A connecting bracket 150 is located at the bottom of the bottom plate 123 of the drawer 120. The connecting bracket 150 includes a frame body 151, a locking hole 152, and a positioning block 153. Both the locking hole 152 and the positioning block 153 are located on the frame body 151. The positioning block 153 has a positioning groove 1531. The locking hole 152 can engage with the connecting latch 162, and the positioning post 161 can extend into the positioning groove 1531 to position the drawer 120 on the movable slide rail 140. It should be noted that both sides of the drawer 120 are provided with movable slide rails 140 and fixed slide rails 130, and two connecting brackets 150 and connecting locking assemblies 160 are correspondingly provided. It is understandable that the connecting bracket 150 and the connecting locking assembly 160 may also be provided on only one side. For ease of demonstration, the attached drawings only show the movable slide rail 140 and the fixed slide rail 130 on one side of the drawer 120, and the illustration will focus on the movable slide rail 140 and the fixed slide rail 130 on one side of the drawer 120.

[0033] Compared with the prior art, this application sets a positioning post 161 to cooperate with the positioning groove 1531, thereby making the installation position between the drawer 120 and the movable slide rail 140 more precise, and making the cooperation between the connecting latch 162 and the engaging hole 152 more precise. This effectively avoids the drawer 120 from being misaligned during the sliding process of following the movable slide rail 140, thereby reducing the wear between the connecting latch 162 and the engaging hole 152 on the drawer 120. At the same time, the presence of the positioning post 161 and the positioning groove 1531 can also share some of the impact load, thereby reducing the mutual impact force between the connecting latch 162 and the engaging hole 152. This allows the drawer 120 to be more reliably connected to the movable slide rail 140, resulting in high reliability in use.

[0034] Further, please refer to Figures 3-6The positioning groove 1531 has an inlet cavity section 1532 at one end near the positioning post 161. The opening of the inlet cavity section 1532 gradually increases in size from the end of the positioning groove 1531 away from the positioning post 161 to the end of the positioning groove 1531 near the positioning post 161. This design facilitates the sliding of the positioning post 161 along the inner wall of the inlet cavity section 1532 into the positioning groove 1531. This improves positioning convenience and reduces wear between the positioning post 161 and the inner wall of the positioning groove 1532, thereby extending the service life of both and enhancing reliability.

[0035] Further, please refer to Figures 3-6 The inner wall of the inlet cavity 1532 includes a first curved surface 1532A and a second curved surface 1532B. The first curved surface 1532A extends along a first direction, and the second curved surface extends along a second direction. The first direction is the sliding direction of the movable slide rail 140, and the second direction is perpendicular to the first direction. The straight line containing the second direction is parallel to the bottom plate 123 of the drawer 120. The average radius of curvature of the first curved surface is greater than that of the second curved surface. That is, the average curvature of the first curved surface 1532A is greater than that of the second curved surface 1532B. Therefore, from the side view, the second curved surface 1532B is steeper than the first curved surface 1531A. Moreover, the area of ​​the vertical projection of the first curved surface 1532A onto the bottom plate 123 of the drawer 120 is larger than the area of ​​the vertical projection of the second curved surface 1532B onto the bottom plate 123 of the drawer 120. With this setup, even if there is a slight placement deviation in the first direction of the drawer 120, the positioning post 161 can quickly enter the positioning groove 1531 along the first curved surface 1532A of the inlet cavity 1532, thereby adjusting the installation position of the drawer 120 to the correct position. This results in a high fault tolerance rate in installation and higher reliability in use.

[0036] Further, please refer to Figure 2 The connecting latch 162 is movably engaged with the engaging hole 152, and the connecting latch 162 can extend out of the engaging hole 152. The part of the connecting latch 162 extending out of the engaging hole 152 is provided with a first driving slope 1621. The first driving slope 1621 can abut against the inner wall of the engaging hole 152 or the frame 151, thereby driving the connecting latch 162 away from the engaging hole 152. This design allows the connecting latch 162 to bypass the frame 151 of the connecting bracket 150 before entering the locking hole 152 when the drawer 120 needs to be positioned on the movable slide rail 140, through the mutual compression of the frame 151 and the first drive ramp 1621. Alternatively, it allows the connecting latch 162 to exit the locking hole when the drawer 120 needs to be separated from the movable slide rail 140, through the mutual compression of the locking hole 152 and the first drive ramp 1621, thereby releasing the drawer 120 from the movable slide rail 140.

[0037] Further, please refer to Figure 2 The frame 151 includes a second driving ramp 1511, located below the engaging hole 152. The second driving ramp 1511 abuts against the first driving ramp 1621, thereby driving the connecting latch 162 away from the frame 151 and into the engaging hole 152. This arrangement enhances the driving force that drives the connecting latch 162 away from the engaging hole 152, and the inclined abutment between the first driving ramp 1621 and the second driving ramp 1511 results in a larger contact area, reducing wear on the first driving ramp 1621 and improving reliability. In this embodiment, the inclination angle of the first driving ramp 1621 is smaller than that of the second driving ramp 1511, allowing the second driving ramp 1511 to push the first driving ramp 1621 more forcefully.

[0038] Further, please refer to Figure 2 The portion of the connecting latch 162 extending out of the engaging hole 152 is also provided with a stop 1622. The stop 1622 can abut against the circumferential inner wall of the engaging hole 152, thereby preventing the connecting latch 162 from separating from the engaging hole 152. This arrangement makes the stop 1622 tend to prevent the connecting latch 162 from exiting the engaging hole 152, which can enhance the connection reliability between the connecting latch 162 and the engaging hole 152, thereby enhancing the reliability of use.

[0039] Further, please refer to Figure 2 as well as Figures 9-10 The connecting locking assembly 160 also includes a movable lever 163 and a release button 164. The movable lever 163 is connected to the first end 141 of the movable slide rail 140. The connecting latch 162 is disposed between the two ends of the movable lever 163. The release button 164 is disposed at the end of the movable lever 163 away from the fixed slide rail 130. The release button 164 is used to drive the movable lever 163 to swing relative to the connecting bracket 150, thereby driving the connecting latch 162 to disengage from the engagement hole 152. With this configuration, when manually pulling the drawer 120 upwards fails to separate the drawer 120 from the movable slide rail 140, the release button 164 can drive the connecting latch 162 to disengage from the engagement hole 152 to release the drawer 120, thereby enhancing the reliability of use.

[0040] Further, please refer to Figure 2 as well as Figures 9-10The movable lever 163 is bent and made of elastic material, thus storing a certain amount of elastic potential energy. Specifically, the movable lever 163 has three bent sections to adapt to the shape of the movable slide rail 140 for aesthetic purposes. From the end of the movable lever 163 near the fixed slide rail 130 to the end of the movable lever 163 away from the fixed slide rail 130, the three bent sections are, in sequence: a first bent section 1631, a second bent section 1632, and a third bent section 1633. A connecting latch 162 is located between the first bent section 1631 and the second bent section 1632, and a release button 164 is located below the third bent section 1633. Therefore, pressing the release button 164 causes the third bent section 164 to warp towards the fixed slide rail 130, while simultaneously causing the second bent section 1632 and the first bent section 1631 to warp away from the fixed slide rail 130, thereby causing the connecting latch 162 to gradually move away from and disengage from the engagement hole 152. When the connecting latch 162 is completely disengaged from the engagement hole 152, the drawer 120 is released from the movable slide rail 140, at which point the drawer 120 can be completely separated from the movable slide rail 140.

[0041] Further, please refer to Figures 9-10 The movable paddle 163 and the first end 141 of the movable slide rail 140 are integrally formed. This design enhances the connection strength between the movable paddle 163 and the movable slide rail 140, increases the number of times the movable paddle 163 can be moved, extends the service life of the movable paddle 163, and thus enhances the reliability of use.

[0042] Further, please refer to Figures 9-10 The second end 142 of the movable slide rail 140 is provided with a fixed hook 143, and the end of the drawer 120 near the fixed hook 143 is provided with a fixed bracket 125. The fixed bracket 125 includes a fixed hole 1251, and the fixed hook 143 can hook into the fixed hole 1251. This arrangement ensures that the drawer 120 is positioned at both the first end 141 and the second end 142 of the movable slide rail 140. This not only improves the reliability of the connection but also further limits the drawer 120 to reduce misalignment, thereby improving the reliability of use.

[0043] Further, please refer to Figure 6 as well as Figure 10The connecting locking assembly 160 also includes a mounting base 165, on which a positioning pin 161 is disposed. Specifically, the outer circumferential surface of the positioning pin 161 is provided with a connecting thread 170, and the end of the positioning pin 161 away from the drawer 120 is provided with a disassembly slot. The positioning pin 161 is connected to the mounting base 165 by the connecting thread 170, and the disassembly slot is used to tighten the positioning pin 161 onto the mounting base 165 or to remove the positioning pin 161 from the mounting base 165. In this embodiment, the extension length of the connecting thread 170 is greater than the thickness of the mounting base 165. Therefore, when the positioning pin 161 is connected to the mounting base 165, a portion of the connecting thread 170 is exposed outside the mounting base 165. The portion of the connecting thread 170 exposed outside the mounting base 165 allows the positioning pin 161 to be adjusted in height to accommodate various sizes of drawers 120.

[0044] Further, please refer to Figure 6 as well as Figure 10 In some embodiments of this application, the positioning post 161 and the connecting latch 162 are integrally formed with the movable slide rail 140. This arrangement can improve the structural strength of the positioning post 161 and the connecting latch 162, thereby improving the reliability of use.

[0045] Further, please refer to Figure 6 as well as Figure 10 In some other embodiments of this application, the positioning post 161 and the connecting latch 162 are detachably connected to the movable slide rail 140. This arrangement facilitates the removal of the positioning post 161 and the connecting latch 162 from the movable slide rail 140 for maintenance.

[0046] The following is a description of the working principle of the drawer connection locking mechanism 100 provided in this application.

[0047] The fixed slide rail 130 is installed on the side panel 111 of the cabinet 110, and the movable slide rail 140 slides on the fixed slide rail 130. The installation of the drawer 120 in the cabinet 110 can be completed by connecting the movable slide rail 140 to the drawer 120. Specifically, drawer 120 is first tilted into cabinet 110, so that the fixing hole 1251 of the fixing bracket 125 on drawer 120 is hooked onto the fixing hook 143 of the second end 142 of movable slide rail 140. Then, the end of drawer 120 opposite to the first end 141 of movable slide rail 140 is pressed towards the direction of movable slide rail 140, so that positioning post 161 gradually enters positioning groove 1531 on positioning block 153. At this time, the first driving inclined surface 1621 on connecting latch 162 and the second driving inclined surface 1511 on connecting bracket 150 press against each other, so that connecting latch 162 enters the engaging hole 152 and engages. At this time, the positioning assembly between drawer 120 and movable slide rail 140 is completed.

[0048] Compared with the prior art, this application sets a positioning post 161 to cooperate with the positioning groove 1531, thereby making the installation position between the drawer 120 and the movable slide rail 140 more precise, and making the cooperation between the connecting latch 162 and the engaging hole 152 more precise. This effectively avoids the drawer 120 from being misaligned during the sliding process of following the movable slide rail 140, thereby reducing the wear between the connecting latch 162 and the engaging hole 152 on the drawer 120. At the same time, the presence of the positioning post 161 and the positioning groove 1531 can also share some of the impact load, thereby reducing the mutual impact force between the connecting latch 162 and the engaging hole 152. This allows the drawer 120 to be more reliably connected to the movable slide rail 140, resulting in high reliability in use. In addition, the drawer 120 is also provided with a fixed bracket 125, and the second end 142 of the movable slide rail 140 is also provided with a fixed hook 143 to hook onto the fixed hole 1251 on the fixed bracket 125, so as to further position the drawer 120 on the movable slide rail 140, so as to avoid misalignment between the drawer 120 and the movable slide rail 140, thereby improving the reliability of use.

[0049] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A drawer connection locking mechanism, characterized in that, The system includes at least one pair of fixed slide rails, at least one pair of movable slide rails, a connecting bracket, and a connecting locking assembly. The fixed slide rails are installed on the inside of the drawer cabinet body, and the movable slide rails slide on the fixed slide rails. The connecting locking assembly includes a positioning post and a connecting latch, both of which are located at the first end of the movable slide rail. The connecting bracket is installed at the bottom of the drawer of the drawer cabinet and includes a frame, a locking hole, and a positioning block. The locking hole and the positioning block are both located on the frame, and the positioning block has a positioning groove. The locking hole can engage with the connecting latch, and the positioning post can extend into the positioning groove to position the drawer on the movable slide rail.

2. The drawer connection locking mechanism according to claim 1, characterized in that, The positioning groove has an inlet cavity section at one end near the positioning post, and the opening of the inlet cavity section gradually increases from the end of the positioning groove away from the positioning post to the end of the positioning groove near the positioning post.

3. The drawer connection locking mechanism according to claim 2, characterized in that, The inner wall of the inlet cavity includes a first curved surface and a second curved surface. The first curved surface extends along a first direction, and the second curved surface extends along a second direction. The first direction is the sliding direction of the movable slide rail, and the second direction is perpendicular to the first direction. The straight line containing the second direction is parallel to the plane defined by the bottom surface of the drawer. The average radius of curvature of the first curved surface is greater than the average radius of curvature of the second curved surface.

4. The drawer connection locking mechanism according to claim 1, characterized in that, The connecting latch is movably engaged with the engaging hole, and the connecting latch can extend out of the engaging hole. The portion of the connecting latch extending out of the engaging hole is provided with a first driving slope. The first driving slope can abut against the inner wall of the engaging hole or the frame, thereby driving the connecting latch away from the engaging hole.

5. The drawer connection locking mechanism according to claim 4, characterized in that, The frame includes a second driving ramp, which is located below the engagement hole. The second driving ramp can abut against the first driving ramp, thereby driving the connecting latch away from the frame and into the engagement hole.

6. The drawer connection locking mechanism according to claim 4, characterized in that, The portion of the connecting latch extending out of the engagement hole is provided with a stop plate, which can abut against the circumferential inner wall of the engagement hole, thereby preventing the connecting latch from separating from the engagement hole.

7. The drawer connection locking mechanism according to claim 4, characterized in that, The connecting locking assembly also includes a movable lever and a release button. The movable lever is connected to the first end of the movable slide rail. The connecting latch is disposed between the two ends of the movable lever. The release button is disposed at the end of the movable lever away from the fixed slide rail. The release button is used to drive the movable lever to swing relative to the connecting frame, thereby driving the connecting latch to disengage from the engagement hole.

8. The drawer connection locking mechanism according to claim 7, characterized in that, The movable paddle and the first end of the movable slide rail are integrally formed.

9. The drawer connection locking mechanism according to claim 1, characterized in that, The second end of the movable slide rail is provided with a fixed hook, and the drawer is provided with a fixed bracket at the end near the fixed hook. The fixed bracket includes a fixed hole, and the fixed hook can hook onto the fixed hole.

10. The drawer connection locking mechanism according to claim 1, characterized in that, The positioning post and the connecting latch are both integrally formed with the movable slide rail, or... The positioning post and the connecting latch are both detachably connected to the movable slide rail.

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