Drawer locking and adjusting device

Abstract

The utility model provides a drawer locking adjusting device, which comprises a base mounted on a drawer, a locking rod detachably connected to a movable rail, and an adjusting mechanism for adjusting the relative position of the drawer and the movable rail in different directions, including left-right adjusting mechanism, up-down adjusting mechanism and front-back adjusting mechanism. The drawer and the barrel opening of the furniture cabinet are aligned, or different drawers are aligned. The drawer locking adjusting device is easy to assemble and disassemble, can better avoid the drawer and the rail assembly from falling off, improve their connection stability, and has simple structure, small size, and can conveniently adjust the drawer in each direction, ensure the accuracy and aesthetics of the drawer installation, improve the convenience and humanization of operation, and solve the problem of adjusting direction when the operator cannot directly observe the bottom of the drawer.

Description

Technical Field

[0001] This invention relates to the field of furniture, and in particular to a device for assembling and disassembling drawers and adjusting the position of drawers. Background Technology

[0002] Drawers are commonly found in various tables and cabinets for storing items. To overcome the problems of traditional drawers, such as high friction, easy falling off, and difficulty in fully opening, most existing drawers are installed on furniture using movable slides. These movable slides include relatively movable fixed rails and movable rails, which are connected to the furniture and the drawer respectively. However, with the diversification of furniture designs and the need for easier cleaning, more and more drawers are adopting detachable structures. For example, Chinese patent CN102326978B describes a drawer with a connecting seat and a locking rod, and a locking hole on the movable rail. Detachment is achieved by the locking tongue on the locking rod engaging with the locking hole. However, this locking rod and locking hole structure is prone to detachment when the pulling force of the drawer exceeds the torsion spring force, causing the drawer to fall off. Additionally, this drawer also has a height adjustment mechanism, but its adjustment precision is poor and its operation is inconvenient, failing to meet the needs of drawer position adjustment. Summary of the Invention

[0003] The purpose of this invention is to provide a drawer locking and adjusting device that is stable to install and remove and can better meet adjustment needs, so as to improve the installation quality of detachable drawers and better meet the needs of use.

[0004] The drawer locking adjustment device of the present invention includes a lock hole set on the movable rail and a base fixedly installed on the drawer. A locking rod is hinged to the base by an elastic element. The locking rod is provided with a locking tongue that can be inserted into the lock hole. The force of the elastic element on the locking rod causes the locking tongue to engage with the lock hole. An adjustment mechanism for adjusting the relative position of the drawer and the movable rail in different directions such as left and right, up and down, and front and back is also installed on the base.

[0005] Furthermore, a locking part is provided on the side of the latch facing outwards from the drawer, and the latch is inclined or curved on the side facing away from the drawer.

[0006] Furthermore, the adjustment mechanism includes a left-right adjustment mechanism for adjusting the left-right relative position of the drawer and the movable rail, a right-up adjustment mechanism for adjusting the up-down relative position, and a front-back adjustment mechanism for adjusting the front-back relative position.

[0007] Furthermore, the left and right adjustment mechanism includes a left and right adjustment seat, left and right adjustment wheels, and left and right adjustment rods. The left and right adjustment seat is fixedly installed on the movable rail and is connected to the base in a way that allows it to move left and right relative to the base. The left and right adjustment wheels and the left and right adjustment rods are rotatably installed on the base and have meshing transmission teeth between their ends. A portion of the left and right adjustment wheels passes through the base and is located outside the base. The axial direction of the left and right adjustment rods points to the left and right sides of the drawer, and there are meshing threads between the left and right adjustment rods and the left and right adjustment seat.

[0008] Furthermore, the axis of the left and right adjustment wheels is parallel to the direction of movement of the movable rail, and the direction in which the left and right adjustment wheels rotate toward the left and right sides is consistent with the direction in which the drawer moves left and right.

[0009] Furthermore, the up-down adjustment mechanism includes an up-down adjustment seat that can be horizontally moved and mounted on the base. The base is also equipped with an up-down adjustment wheel with teeth or threads. Part of the up-down adjustment wheel passes through the base and is located outside the base. The up-down adjustment seat is provided with teeth or threads that mesh with the up-down adjustment wheel. The up-down adjustment seat is also provided with an adjustment plate that is locked between the bottom surface of the drawer and the top surface of the movable rail. The top or bottom surface of the adjustment plate is inclined.

[0010] Furthermore, the axis of the up-and-down adjusting wheels is parallel to the direction of movement of the movable rail, and the direction in which the up-and-down adjusting wheels rotate toward the up and down sides is consistent with the direction in which the drawer moves up and down.

[0011] Furthermore, the front and rear adjustment mechanism includes a front and rear fixed seat fixedly mounted on the base. A front and rear adjustment wheel with teeth or threads is rotatably mounted inside the front and rear fixed seat. The front and rear adjustment wheel partially passes through the front and rear fixed seat and is disposed outside. A front and rear adjustment plate that moves along the front and rear direction of the drawer is also mounted on the front and rear fixed seat. The front and rear adjustment plate is provided with teeth or threads that mesh with the front and rear adjustment wheel, and a baffle is provided on the front and rear adjustment plate that is opposite to the end of the fixed rail.

[0012] Furthermore, the axes of the front and rear adjusting wheels are parallel to the direction of movement of the movable rail, and parts of the front and rear adjusting wheels pass through the bottom surface of the front and rear fixed seats.

[0013] Furthermore, the axes of the front and rear adjusting wheels can be set vertically, with a portion of the front and rear adjusting wheels axially passing through the bottom surface of the front and rear fixed seats, or a portion of the front and rear adjusting wheels radially passing through the left and right sides of the front and rear fixed seats; a portion of the left and right adjusting wheels passing through the bottom surface of the base; and a portion of the up and down adjusting wheels passing through the left and right sides of the base.

[0014] The drawer locking adjustment device of this invention has a track assembly consisting of a fixed rail and a movable rail on the cabinet drawer, and the drawer locking adjustment device of this invention is installed at the bottom of the drawer. The base of the drawer locking adjustment device is equipped with a locking rod and an adjustment mechanism that can be adjusted in three directions. The left-right adjustment wheel of the left-right adjustment mechanism, the up-down adjustment wheel of the up-down adjustment mechanism, and the front-back adjustment wheel of the front-back adjustment mechanism all partially protrude from the bottom surface, and the axes of the three adjustment wheels are parallel. The base is fixed to the drawer. When installing the drawer, it is inserted along the movable rail. The locking rod is blocked by the end of the movable rail and rotates until it moves to the position corresponding to the lock hole on the movable rail. The locking rod then springs back and drives the locking tongue to insert into the lock hole of the movable rail, thereby installing the drawer on the movable rail. If the left-right, up-down, and front-back directions of the drawer do not correspond to the opening of the cabinet drawer, or if the positions of different drawers are not aligned, the left-right, up-down, or front-back adjustment wheels can be rotated accordingly to align the drawer with the opening of the cabinet drawer, or to make the drawers aligned with each other, improving the overall aesthetics of the furniture. This drawer locking and adjusting device is easy to install and remove, and can better prevent the drawer from falling off the slide assembly, improving their connection stability. At the same time, the adjustment mechanism has a simple structure and compact size, which can easily adjust the drawer in all directions, ensuring the accuracy of drawer installation and the alignment and aesthetics of all drawers in the furniture. Furthermore, the rotation direction of the left and right adjustment wheels and the up and down adjustment wheels are consistent with the left and right and up and down adjustment directions of the drawer, respectively, thereby improving the convenience and accuracy of the operator's adjustment, making it more user-friendly, and solving the problem of the operator not being able to see the bottom of the drawer directly when adjusting the direction. Attached Figure Description

[0015] Figure 1 , 2 These are schematic diagrams of the drawer locking adjustment device from different viewpoints.

[0016] Figure 3 This is an exploded view of the drawer locking adjustment device.

[0017] Figure 4 This is a schematic diagram of the left and right adjustment mechanism.

[0018] Figure 5 This is a schematic diagram of the up-and-down adjustment mechanism.

[0019] Figure 6 This is a schematic diagram of a drawer locking adjustment device installed on the drawer and connected to the slide assembly.

[0020] Figure 7 yes Figure 6 A partial structural schematic diagram of the drawer locking adjustment device is shown.

[0021] Figure 8 This is a schematic diagram of the structure for adjusting the vertical relative position of the drawer and the sliding rails.

[0022] Figure 9 This is a schematic diagram of the structure for adjusting the relative front and rear positions of the drawer and the fixed rail. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] This invention proposes a drawer locking adjustment device.

[0027] In this embodiment of the invention, the drawer locking adjustment device includes a lock hole 11 disposed on the movable rail 1 and a base 2 fixedly installed on the drawer. A locking rod is hinged to the base through an elastic member 4. The locking rod is provided with a locking tongue 31 that can be inserted into the lock hole. The force exerted by the elastic member on the locking rod causes the locking tongue to engage in the lock hole. An adjustment mechanism for adjusting the relative position of the drawer and the movable rail in different directions (left, right, up, down, front, back) is also installed on the base.

[0028] The drawer locking adjustment device has lock holes 11 located on opposite sides of the two movable rails 1, a base 2 installed at the bottom of the drawer, and a locking rod mounted on the base between the two movable rails. This design better conceals the drawer locking adjustment device, greatly reducing the risk of accidental operation due to collisions and improving the drawer's aesthetics. Additionally, the latch 31 has a locking part on the side facing outwards from the drawer, and this locking part is stepped with several levels to facilitate connection with drawers and rail assemblies of different sizes. The side of the latch facing away from the drawer is inclined or curved. When installing the drawer, it is inserted along the direction of the movable rails. The side of the latch facing away from the drawer is blocked by the movable rails, causing the locking rod to rotate until it aligns with the lock hole on the movable rail. The locking rod then rebounds under the action of an elastic element (such as a torsion spring), allowing the latch to insert into the lock hole. The drawer and sliding rail are thus fixed together. After the drawer is installed, when it is pulled outward, the applied force will drive the locking rod outward through the base. Then, the stepped surface on the locking part of the locking rod abuts against the inner wall of the lock hole on the sliding rail, thereby driving the drawer and sliding rail outward. During this process, the locking rod will be subjected to the reaction force from the sliding rail. This reaction force is the torque of the locking rod, and its direction is consistent with that of the elastic element. This effectively prevents the locking rod from falling off the lock hole, thus preventing the drawer from detaching from the sliding rail and falling out. In addition, the locking rod is equipped with a handle 32, which is located on the side of the locking rod facing away from the drawer. When it is necessary to remove the drawer from the sliding rail, the operator can turn the handle and rotate the locking rod to turn the latch out of the lock hole on the sliding rail. The operation is convenient.

[0029] The drawer locking adjustment device includes a left-right adjustment mechanism for adjusting the left-right relative position of the drawer and the movable rail, a right-right adjustment mechanism for adjusting the up-down relative position, and a front-back adjustment mechanism for adjusting the front-back relative position. The left-right adjustment mechanism includes a left-right adjustment seat 51, left-right adjustment wheels 52, and left-right adjustment rods 53. The left-right adjustment seat is fixedly installed on the movable rail 1 and is movably connected to the base 2. The left-right adjustment wheels and left-right adjustment rods are rotatably installed on the base, and their ends are provided with meshing transmission teeth 54. Part of the left-right adjustment wheels passes through the base and is located outside the base; specifically, a portion of the left-right adjustment wheels can pass through the bottom surface of the base. The axial direction of the left-right adjustment rods points to the left and right sides of the drawer, and there are meshing threads between the left-right adjustment rods and the left-right adjustment seat. The left-right adjustment seat is fixed relative to the movable rail; specifically, a fixing fork 55 that engages with the end of the movable rail 1 can be provided on the left-right adjustment seat 51. When the drawer is installed onto the sliding rail, the fixed fork engages with the sliding rail along the direction of the sliding rail until the locking bolt of the locking lever is inserted into the locking hole of the sliding rail, at which point the fixed fork also engages with the sliding rail. At the same time, the elastic element 4 can be an elastic plate extending from the left and right adjustment seat 51. When the locking bolt is inserted into the locking hole of the sliding rail, there is a certain gap between the elastic plate and the handle or they are only in contact with each other. During the process of the drawer being inserted into the sliding rail, or when the drawer needs to be removed and the locking lever is rotated to drive the locking bolt out of the locking hole, the handle on the locking lever presses against the elastic plate, causing the elastic plate to deform. Until the locking bolt is aligned with the locking hole or the locking lever leaves the sliding rail, the elastic plate, under the action of the rebound force, drives the handle to rotate in the opposite direction, thereby allowing the locking bolt to be inserted into the locking hole or the drawer to be reset after removal. After the drawer is installed on the sliding rails, if the drawer's lateral position is found to be incorrect, such as not aligning with the cabinet drawer opening on the left or right sides, or the drawers not being aligned, the exposed portion of the left and right adjustment wheels can be moved. The adjustment wheels, through transmission gears, drive the left and right adjustment rods to rotate, causing the rods to move relative to the adjustment seats via threads. This, in turn, moves the base relative to the adjustment seats, thus moving the drawer left or right to the appropriate position. This type of left and right adjustment mechanism allows for convenient and quick lateral adjustment of the drawer, and it is compact, easy to operate, and the worm gear structure of the adjustment rods ensures smooth and accurate adjustment. The drawer moves along the ground. Furthermore, to further improve ease of operation, the axis of the left and right adjusting wheels 52 is parallel to the direction of movement of the movable rail 1, allowing the left and right adjusting wheels to rotate to the left and right. Through the arrangement of the teeth and threads on the left and right adjusting wheels, transmission gears, left and right adjusting rods, and left and right adjusting seats, the direction of rotation of the left and right adjusting wheels to the left and right is consistent with the direction of left and right movement of the drawer, allowing the operator to adjust the drawer more clearly and accurately. At this time, the axes of the left and right adjusting wheels and the left and right adjusting rods are perpendicular to each other. Meshing bevel gears can be installed at their ends, using the bevel gears as transmission teeth to stably and accurately transmit motion.

[0030] The drawer locking adjustment device includes a vertical adjustment mechanism comprising a vertical adjustment seat 61 horizontally movably mounted on a base 2. The base also has vertical adjustment wheels 62 with teeth or threads. Parts of the vertical adjustment wheels pass through the base and extend outside the base; specifically, parts of the vertical adjustment wheels can pass through the left and right sides of the base. The vertical adjustment seat has teeth or threads that mesh with the vertical adjustment wheels. The vertical adjustment seat also has an adjustment plate 63 that engages between the bottom surface of the drawer and the top surface of the sliding rail 1. The top or bottom surface of the adjustment plate is inclined. This allows for adjustment when the vertical direction of the drawer does not correspond to the opening of the cabinet drawer, or when the positions of different drawers are not aligned. When in use, the operator can move the exposed part of the up-and-down adjusting wheel, which will drive the up-and-down adjusting seat to move horizontally. This allows the adjusting plate to be inserted to different depths between the bottom of the drawer and the top of the sliding rail. Because the inclined adjusting plate has different thicknesses at different depths, it can drive the drawer to adjust up and down relative to the sliding rail. At the same time, the axis of the up-and-down adjusting wheel 62 is parallel to the direction of movement of the sliding rail 1, allowing the up-and-down adjusting wheel to rotate in both directions. Furthermore, the arrangement of the teeth and tooth stripes on the up-and-down adjusting wheel and the up-and-down adjusting seat ensures that the direction of rotation of the up-and-down adjusting wheel is consistent with the direction of movement of the drawer, thereby improving the ease of operation.

[0031] The drawer locking adjustment device includes a front and rear adjustment mechanism comprising a front and rear fixed seat 71 fixedly mounted on the base 2. A front and rear adjusting wheel 72 with teeth or threads is rotatably mounted inside the front and rear fixed seat. The front and rear adjusting wheel partially passes through the front and rear fixed seat and is located on the outside. A front and rear adjusting plate 73 that moves along the front and rear direction of the drawer is also mounted on the front and rear fixed seat. The front and rear adjusting plate is provided with teeth or threads that mesh with the front and rear adjusting wheel. The front and rear adjusting plate is also provided with a baffle 74 that is opposite to the end of the fixed rail 8. When the drawer is closed, the baffle is pressed against the end of the fixed rail, thereby forming a limit in the front and rear direction. If the drawer is closed too deeply, forming a recess, or closed too shallowly, protruding from the furniture cabinet opening, the operator can rotate the front and rear adjusting wheel, thereby moving the front and rear adjusting plate to change its relative distance with the end of the fixed rail, thereby realizing the adjustment in the front and rear direction of the drawer and aligning the outer side of the drawer with the opening of the furniture cabinet. The front and rear fixing seats 71 can be integrally mounted on the base 2, or they can be detachably fixed to the base 2 by fixing screws 75. Alternatively, the front and rear fixing seats 71 can be configured as a mounting seat 76 with a cavity and an opening on one side, and a cover plate 77 covering the opening of the mounting seat. Front and rear adjusting wheels 72 are mounted inside the mounting seat, and the cover plate has adjusting grooves 78 for partial passage of the front and rear adjusting wheels. This type of front and rear fixing seat structure facilitates assembly, disassembly, and maintenance. Furthermore, the front and rear adjusting wheels 72 can be as follows... Figure 1 , 2As shown in Figure 6, its axis is parallel to the moving direction of the movable rail 1, and a portion of the front and rear adjusting wheels passes through the bottom surface of the front and rear fixed seats 71, making the overall arrangement of the drawer locking adjustment device more compact. Alternatively, the axis direction of the front and rear adjusting wheels 72 can be set to vertical, and the thickness of the front and rear adjusting wheels can be increased, so that a portion of the front and rear adjusting wheels in the axial direction passes through the bottom surface of the front and rear fixed seats 71, or a portion of the front and rear adjusting wheels in the radial direction passes through the left and right sides of the front and rear fixed seats. This makes the rotation direction of the front and rear adjusting wheels consistent with the moving direction of the front and rear adjusting plates, improving the operator's ease of operation.

[0032] like Figure 1-9 As shown, the drawer 100 is equipped with a track assembly consisting of fixed and movable rails, and the drawer 200 has the drawer locking adjustment device described in this invention installed at its bottom. The base of the drawer locking adjustment device has a locking lever and an adjustment mechanism that can be adjusted in three directions. The left-right adjustment wheels of the left-right adjustment mechanism, the up-down adjustment wheels of the up-down adjustment mechanism, and the front-back adjustment wheels of the front-back adjustment mechanism all partially protrude from the bottom surface, and the axes of the three adjustment wheels are parallel. The base is fixed to the drawer. When installing the drawer, it is inserted along the movable rail. The locking lever is blocked by the end of the movable rail and rotates until it moves to the position opposite the lock hole on the movable rail. The locking lever then springs back and drives the locking tongue to insert into the lock hole of the movable rail, thereby installing the drawer on the movable rail. If the left-right, up-down, or front-back directions of the drawer do not correspond to the opening of the drawer drawer, the left-right, up-down, or front-back adjustment wheels can be rotated accordingly to align the drawer with the drawer drawer opening.

[0033] In addition, considering that the drawer locking adjustment device installed at the bottom of the drawer is not easy to observe, the axes of the left and right adjustment wheels and the up and down adjustment wheels can be set to be parallel to the movement direction of the sliding rail, with the radial portions of the left and right adjustment wheels protruding from the bottom surface and the radial portions of the up and down adjustment wheels protruding from the left and right sides. At the same time, the axes of the front and rear adjustment wheels can be set to be perpendicular, with the axial portions protruding from the bottom surface or the radial portions protruding from the left and right sides. This makes the rotation direction of the protruding parts of the three adjustment wheels consistent with the corresponding adjustment direction. In this case, the operator can achieve the desired direction adjustment by touching the adjustment wheels, without having to squat down to visually distinguish the different adjustment wheels, thus greatly improving the convenience of operation and making it easier for those without operating experience to operate more accurately.

[0034] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A drawer locking adjustment device, comprising a lock hole (11) disposed on a movable rail (1), and a base (2) fixedly installed on the drawer, wherein a locking rod is hinged to the base via an elastic element (4), and the locking rod is provided with a locking tongue (31) that can be inserted into the lock hole, wherein the force exerted by the elastic element on the locking rod causes the locking tongue to engage in the lock hole, characterized in that: The base is also equipped with an adjustment mechanism for adjusting the relative positions of the drawer and the movable rail in different directions (left, right, up, down, front, back); the locking tongue (31) has a locking part on the side facing outward of the drawer, and the locking tongue is inclined or arc-shaped on the side facing away from the drawer; the adjustment mechanism includes a left-right adjustment mechanism for adjusting the relative positions of the drawer and the movable rail, an up-down adjustment mechanism for adjusting the relative positions of the drawer and the movable rail, and a front-back adjustment mechanism for adjusting the relative positions of the drawer and the movable rail; the left-right adjustment mechanism includes a left-right adjustment seat (51), a left-right adjustment wheel (52), and a left-right adjustment rod (53). The left-right adjustment seat is fixedly installed on the movable rail (1) and is connected to the base (2) in a way that allows it to move left and right relative to each other. The left-right adjustment wheel and the left-right adjustment rod are rotatably installed on the base and have meshing transmission teeth (54) between their ends. A portion of the left-right adjustment wheel passes through the base and is located outside the base. The axial direction of the left-right adjustment rod points to the left and right sides of the drawer, and there are meshing threads between the left-right adjustment rod and the left-right adjustment seat; the axis of the left-right adjustment wheel (52) is parallel to the moving direction of the movable rail (1), and the direction in which the left-right adjustment wheel rotates towards the left and right sides is consistent with the direction in which the drawer moves left and right.

2. The drawer locking adjustment device according to claim 1, characterized in that: The up-down adjustment mechanism includes an up-down adjustment seat (61) that can be horizontally moved and mounted on the base (2). The base is also equipped with an up-down adjustment wheel (62) with teeth or threads. Part of the up-down adjustment wheel passes through the base and is set outside the base. The up-down adjustment seat is provided with teeth or threads that mesh with the up-down adjustment wheel. The up-down adjustment seat is also provided with an adjustment plate (63) that is locked between the bottom surface of the drawer and the top surface of the movable rail (1). The top or bottom surface of the adjustment plate is inclined.

3. The drawer locking adjustment device according to claim 2, characterized in that: The axis of the up-down adjusting wheel (62) is parallel to the direction of movement of the movable rail (1), and the direction of rotation of the up-down adjusting wheel toward the up and down sides is consistent with the direction of movement of the drawer up and down.

4. The drawer locking adjustment device according to claim 2 or 3, characterized in that: The front and rear adjustment mechanism includes a front and rear fixed seat (71) fixedly mounted on the base (2). A front and rear adjustment wheel (72) with teeth or threads is rotatably mounted inside the front and rear fixed seat. The front and rear adjustment wheel is partially mounted outside the front and rear fixed seat. A front and rear adjustment plate (73) that moves along the front and rear direction of the drawer is also mounted on the front and rear fixed seat. The front and rear adjustment plate is provided with teeth or threads that mesh with the front and rear adjustment wheel. A baffle (74) opposite to the end of the fixed rail (8) is provided on the front and rear adjustment plate. The axis of the front and rear adjustment wheel (72) is vertically arranged. The front and rear adjustment wheel partially passes through the bottom surface of the front and rear fixed seat (71) in the axial direction, or partially passes through the left and right sides of the front and rear fixed seat in the radial direction. The left and right adjustment wheel (52) partially passes through the bottom surface of the base (2). The up and down adjustment wheel (62) partially passes through the left and right sides of the base (2).

5. The drawer locking adjustment device according to claim 1, 2 or 3, characterized in that: The front and rear adjustment mechanism includes a front and rear fixed seat (71) fixedly installed on the base (2). A front and rear adjustment wheel (72) with teeth or threads is rotatably installed in the front and rear fixed seat. The front and rear adjustment wheel is partially installed outside the front and rear fixed seat. A front and rear adjustment plate (73) that moves along the front and rear direction of the drawer is also installed on the front and rear fixed seat. The front and rear adjustment plate is provided with teeth or threads that mesh with the front and rear adjustment wheel. A baffle (74) opposite to the end of the fixed rail (8) is provided on the front and rear adjustment plate.

6. The drawer locking adjustment device according to claim 5, characterized in that: The axis of the front and rear adjusting wheels (72) is parallel to the moving direction of the movable rail (1), and the front and rear adjusting wheels partially pass through the bottom surface of the front and rear fixed seats (71).

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