Drawer tail height adjustment device

Abstract

The application relates to a drawer tail height adjusting device. The drawer tail height adjusting device comprises a fixing part, a moving part, an adjusting assembly and a supporting part. The fixing part is used for being mounted on one side of a guide rail. The moving part is movably arranged between the fixing part and the guide rail, and is provided with a first connecting part used for connecting the tail of a drawer. The moving part is connected to the fixing part through the adjusting assembly, and the adjusting assembly is used for adjusting the relative position of the moving part and the fixing part in the height direction, so that the tail of the drawer is switched between an original position and a height-adjusted position. The supporting part is used for being connected to the tail of the guide rail and / or connected to the fixing part, and comprises a supporting part. When the tail of the drawer is located in the height-adjusted position, the supporting part is arranged between the tail of the drawer and the guide rail, so that the supporting part supports the tail of the drawer. The drawer tail height adjusting device has the advantages of good stability.

Description

Technical Field

[0001] This application relates to the technical field of furniture installation, and in particular to a drawer tail height adjustment device. Background Technology

[0002] Assembled drawers are typically assembled on-site after each component is manufactured separately. Accumulated errors during the manufacturing and assembly processes can lead to uneven gaps between the drawer panel and the cabinet body, causing the drawer panel to tilt forward or backward.

[0003] In traditional techniques, a drawer rear height adjustment device can be used to adjust the height of the drawer rear, thereby correcting the forward or backward tilt of the drawer front panel and ensuring a uniform gap between the drawer front panel and the cabinet body. However, after raising the height of the drawer rear using the adjustment device, a gap exists between the drawer rear and the guide rails, causing the drawer rear to be suspended in the air. The overall weight of the drawer then acts on the front of the guide rails, resulting in uneven stress on the guide rails and affecting the stability between the drawer and the guide rails. Utility Model Content

[0004] Therefore, it is necessary to provide a drawer rear height adjustment device to address the problem of poor stability caused by raising the rear of the drawer when the drawer rear height adjustment device is adjusted.

[0005] This utility model provides a drawer tail height adjustment device, including:

[0006] A fastener for mounting on one side of the guide rail;

[0007] A movable component is movably disposed between the fixed component and the guide rail. The movable component is provided with a first connecting part for connecting the rear of the drawer.

[0008] An adjustment assembly is provided, wherein the movable part is connected to the fixed part via the adjustment assembly, and the adjustment assembly is used to adjust the relative position of the movable part and the fixed part in the height direction so that the rear of the drawer can switch between the original position and the height-adjusted position;

[0009] The drawer includes a support member for connecting to the tail of the guide rail, and / or the support member is connected to the fixing member. The support member includes a support portion, which is disposed between the tail of the drawer and the guide rail when the tail of the drawer is in the height adjustment position, so that the support member supports the tail of the drawer.

[0010] In one embodiment, the support further includes a fixed part and a movable part. The fixed part is connected to the tail of the guide rail, and / or the fixed part is connected to the fixing member. One end of the movable part is connected to the fixed part, and the other end of the movable part is connected to the support. When the tail of the drawer is in its original position, the movable part and the support are positioned in a compressed position on the rear end face of the drawer. When the tail of the drawer is in a height-adjusted position, the movable part moves the support to a support position between the tail of the drawer and the top surface of the guide rail.

[0011] In one embodiment, the side of the support facing the drawer is configured as a stepped structure; or, the side of the support facing the drawer is configured as a sloping structure.

[0012] In one embodiment, the support portion includes a first sub-support portion and a second sub-support portion. The first sub-support portion is disposed on the top surface of the guide rail, and the second sub-support portion is disposed on the first sub-support portion along the height direction. The first sub-support portion and the second sub-support portion form a stepped structure.

[0013] In one embodiment, the first sub-support portion has an arc-shaped end face facing the back panel of the drawer.

[0014] In one embodiment, the fastener is provided with a first connecting hole, and the fastening part is provided with a connecting buckle, which is detachably connected to the first connecting hole.

[0015] In one embodiment, the fastener includes a mounting plate and a fastener. The bottom surface of the mounting plate abuts against the top surface of the guide rail. The mounting plate has a second connecting hole. The fixing part is disposed on the top surface of the mounting plate. The fixing part has a third connecting hole on the side facing the mounting plate. The fastener is connected to the third connecting hole through the second connecting hole.

[0016] In one embodiment, the fixing part has a mounting groove on the side facing the mounting plate, and the mounting plate is disposed in the mounting groove so that the supporting part abuts against the top surface of the guide rail.

[0017] In one embodiment, the mounting plate is provided with a clearance notch, and the movable part and the supporting part are positioned at the clearance notch when the movable part and the supporting part are in the compressed position.

[0018] In one embodiment, the adjustment assembly includes a rotary adjustment member and a guide post. A mounting cavity for accommodating the rotary adjustment member is defined between the fixed member and the movable member. The rotary adjustment member has a spiral groove on the side facing the movable member. The guide post is disposed on the movable member and extends into the spiral groove to cooperate with the rotation of the rotary adjustment member, thereby realizing the up-and-down movement of the movable member.

[0019] The aforementioned drawer rear height adjustment device adjusts the relative height between the moving part and the fixed part through the adjustment component. This allows the first connecting part of the moving part to switch the drawer rear between the original position and the height adjustment position. When the drawer rear is adjusted to the height adjustment position, a support component is placed between the drawer rear and the guide rail. This allows the weight of the drawer rear to act on the guide rail through the support component, preventing the weight of the drawer from acting only on one end of the guide rail. This avoids uneven force on the guide rail caused by the drawer rear being suspended, thus improving the stability of the guide rail and the drawer in use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the drawer rear height adjustment device mounted on the guide rail in one embodiment of this application.

[0021] Figure 2 for Figure 1 A partial structural diagram.

[0022] Figure 3 This is a schematic diagram of the support member in one embodiment of this application.

[0023] Figure 4 This is another structural schematic diagram of the support member in one embodiment of this application.

[0024] Figure 5 This is a cross-sectional view of a third connecting hole passing through the support member in one embodiment of this application.

[0025] Figure 6 This is a schematic diagram of the installation of the support member in one embodiment of this application.

[0026] Figure 7 This is an exploded view of a drawer rear height adjustment device in one embodiment of this application.

[0027] Figure 8 This is a schematic diagram of the structure of the fastener in one embodiment of this application.

[0028] Figure 9 This is a schematic diagram of the structure of the adjusting member in one embodiment of this application.

[0029] Figure 10 and Figure 11 This is a schematic diagram of the structure of the rotary adjustment member in one embodiment of this application.

[0030] Icon labels:

[0031] 100. Drawer rear height adjustment device;

[0032] 110. Moving part; 111. Adjusting plate; 1111. Second arc-shaped protrusion; 112. First connecting part; 113. Connecting plate;

[0033] 130. Fixing component; 131. Fixing plate; 1311. Mounting cavity; 1312. Operating hole; 1313. Adjustment port; 1315. Second connecting part; 1316. Clearance groove; 1317. First strip hole; 132. Guide plate; 130A. First connecting hole; 133. Mounting plate; 133A. Second connecting hole; 133B. Clearance notch;

[0034] 140. Adjustment assembly; 141. Rotary adjustment component; 1411. Rotating part; 1412. Spiral groove; 1413. First operating part; 1414. Second operating part; 142. Guide post;

[0035] 150. Locking assembly; 151. First locking element; 152. First locking hole;

[0036] 160. Support component; 161. Fixing part; 1611. Connecting buckle; 161A. Third connecting hole; 161B. Mounting groove; 162. Movable part; 163. Supporting part; 1631. First sub-supporting part; 1632. Second sub-supporting part;

[0037] 200, guide rail; 210, fixed rail; 220, moving rail; 221, clamping part. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0044] See Figure 1 , Figure 1 A schematic diagram of a drawer tail height adjustment device 100 installed on a guide rail 200 according to an embodiment of this application is shown. The device is installed at the tail of the guide rail 200 of the drawer and adjusts the height of the drawer tail relative to the guide rail 200.

[0045] The guide rail 200 includes a fixed rail 210 and a movable rail 220. The fixed rail 210 is fixedly mounted inside the cabinet, and the drawer is mounted on the movable rail 220. The drawer's push-pull operation is achieved through the relative movement between the movable rail 220 and the fixed rail 210. In this embodiment, the drawer is fixed to the movable rail 220. Figure 1 The guide rail 200 shown is the right guide rail, and the left side of the moving rail 220 is exposed. Correspondingly, when the drawer rear height adjustment device in this embodiment is installed on the left guide rail, the right side of its moving rail is exposed.

[0046] The drawer rear height adjustment device of this application embodiment is installed on the left and right side guide rails at the bottom of the drawer, and the height of the drawer rear is adjusted as a whole by adjusting the left and right sides respectively.

[0047] like Figure 2 As shown, an embodiment of this application provides a drawer rear height adjustment device, including a fixing member 130, a moving member 110, an adjustment assembly 140, and a support member 160. The fixing member 130 is used to install on one side of the guide rail 200. The moving member 110 is movably disposed between the fixing member 130 and the guide rail 200. The moving member 110 is provided with a first connecting part 112, which is used to connect the rear of the drawer. The moving member 110 is connected to the fixing member 130 through the adjustment assembly 140. The adjustment assembly 140 is used to adjust the relative position of the moving member 110 and the fixing member 130 in the height direction, so that the rear of the drawer can switch between an original position and a height-adjusted position. The original position means that the rear of the drawer abuts against the top surface of the guide rail, and the height-adjusted position means that the rear of the drawer is suspended on the guide rail after being height-adjusted.

[0048] The support member 160 is used to connect to the tail of the guide rail 200, and / or the support member 160 is connected to the fixing member 130. The support member 160 includes a support portion 163. When the tail of the drawer is in the height adjustment position, the support portion 163 is disposed between the tail of the drawer and the guide rail so that the support member supports the tail of the drawer.

[0049] The drawer tail height adjustment device described in this application adjusts the relative height between the moving part 110 and the fixed part 130 through the adjustment component 140, so that the first connecting part 112 of the moving part 110 drives the drawer tail to switch between the original position and the height adjustment position. When the drawer tail is adjusted to the height adjustment position, the support 160 is set between the drawer tail and the guide rail 200, so that the weight of the drawer tail acts on the guide rail through the support 160.

[0050] The drawer tail height adjustment device described in this application embodiment supports the height-adjusted drawer tail on the guide rail 200 via the support member 160, preventing the drawer's weight from acting only on one end of the guide rail 200, thereby avoiding uneven force on the guide rail 200 due to the drawer tail being suspended, and improving the stability of the guide rail 200 and the drawer in use.

[0051] Combination Figure 3 and Figure 4 As shown, Figure 3 A schematic diagram of the support component of the drawer rear height adjustment device according to one embodiment of this application is shown. In some embodiments, the support component 160 includes a fixed part 161, a movable part 162, and a support part 163. The fixed part 161 is connected to the rear of the guide rail 200, and / or the fixed part 161 is connected to the fixing member 130. One end of the movable part 162 is connected to the fixed part 161, and the other end of the movable part 162 is connected to the support part 163. When the rear of the drawer is in the original position, the movable part 162 and the support part 163 are positioned in the compressed position of the rear end face of the drawer. When the rear of the drawer is in the height adjustment position, the movable part 162 drives the support part 163 to move to the support position between the rear of the drawer and the top surface of the guide rail 200.

[0052] In this embodiment, the fixed part 161 of the support member 160 is connected to the guide rail 200 and / or the fixed member 130, while the support part 163 is connected to the fixed part 161 through the movable part 162. The movable part 162 has a certain deformation capacity, thereby giving the support part 163 a certain degree of mobility. When the rear of the drawer is in its original position, the support member 160 is not needed for support. At this time, the movable part 162 and the support part 163 are compressed and set in the compression position on the rear end face of the drawer, and the movable part 162 is in a compressed state. When the rear of the drawer is raised, the movable part 162 is released to its original state, driving the support part 163 to move to the support position between the rear of the drawer and the guide rail 200, thereby supporting the rear of the drawer and preventing the rear of the drawer from being suspended, which would cause uneven force on the guide rail 200.

[0053] In an optional embodiment, such as Figure 3 As shown, the support portion 163 has a stepped structure on the side facing the drawer. This stepped structure includes at least two gradients. It should be noted that the number and height of the steps can be adapted to the adjustable height of the drawer's rear. By setting the support portion 163 as a stepped structure, when the drawer's rear is adjusted to different heights, the drawer's rear can be supported on different height gradients, thus adapting to different height adjustments of the drawer's rear and offering the advantage of good applicability.

[0054] In other embodiments, the side of the support portion 163 facing the drawer may also be configured as a sloping structure, so that the sloping structure of the support portion 163 can be embedded in the gap between the tail of the drawer and the guide rail 200, thereby providing continuous support for the tail of the drawer at each position where the tail of the drawer is raised.

[0055] In an exemplary embodiment, when the support portion 163 is a stepped structure, such as Figure 3 As shown, the support portion 163 includes a first sub-support portion 1631 and a second sub-support portion 1632. The first sub-support portion 1631 is disposed on the top surface of the guide rail 200, and the second sub-support portion 1632 is disposed on the first sub-support portion 1631 along the height direction, forming a stepped structure. The first sub-support portion 1631 and the second sub-support portion 1632 form two steps, allowing the drawer tail to be supported on either the first sub-support portion 1631 or the second sub-support portion 1632, accommodating drawer tails with different adjustable heights. In other embodiments, more steps may be included.

[0056] In an optional embodiment, such as Figure 3As shown, the first sub-support portion 1631 has an arc-shaped end face on the side facing the drawer's back panel. When the support member 160 is in the compressed position, the first sub-support portion 1631 abuts against the drawer's back panel, so that the first sub-support portion 1631 and the drawer's back panel make contact through the arc-shaped surface, thereby reducing the friction between the support member 160 and the drawer when switching between the compressed position and the support position, and optimizing the usage effect.

[0057] In an optional embodiment, to secure the support 160, such as Figure 6 As shown, the fixing member 130 is provided with a first connecting hole 130A, and the fixing part 161 is provided with a connecting buckle 1611, which is detachably connected to the first connecting hole 130A. Specifically, the connecting buckle 1611 is located on the side of the fixing part 161 away from the rear of the drawer. In this embodiment, the fixing part 161 is connected to the fixing member 130 through the connecting buckle 1611, so that the support member 160 can be easily fixedly connected to the fixing member 130, which has the advantage of convenient installation.

[0058] In an optional embodiment, to further secure the support 160, such as... Figure 5 As shown, the fastener 130 includes a mounting plate 133 and fasteners. The bottom surface of the mounting plate 133 abuts against the top surface of the guide rail 200. The mounting plate 133 is provided with a second connecting hole 133A. A fixing part 161 is disposed on the top surface of the mounting plate 133. A third connecting hole 161A is provided on the side of the fixing part 161 facing the mounting plate 133. The fastener is connected to the third connecting hole 161A through the second connecting hole 133A. In this embodiment, by providing a mounting plate 133 for the fastener 130, the fastener 130 can be placed on the mounting plate 133. The fixing part 161 is also provided with a third connecting hole 161A, allowing the fastener to pass through the second connecting hole 133A and form a stable connection with the third connecting hole 161A, ensuring the connection stability of the support 160.

[0059] In an exemplary embodiment, the third connecting hole 161A is a threaded countersunk hole, and the fastener is a screw or bolt, which passes through the second connecting hole 133A and connects to the threaded countersunk hole.

[0060] Furthermore, such as Figure 5 As shown, the fixing part 161 has a mounting groove 161B on the side facing the mounting plate 133. The mounting plate 133 is disposed in the mounting groove 161B so that the supporting part 163 abuts against the top surface of the guide rail 200. Since the bottom surface of the supporting part 163 needs to abut against the top surface of the guide rail 200, the fixing part 161 has a mounting groove 161B at its bottom so that the mounting plate 133 can be embedded into the mounting groove 161B for installation, thereby maintaining the connection between the supporting part 163 and the guide rail 200.

[0061] In an optional embodiment, such as Figure 5As shown, the mounting plate 133 is provided with a clearance notch 133B. When the movable part 162 and the supporting part 163 are in the compressed position, the movable part 162 and the supporting part 163 are positioned at the clearance notch 133B. When the supporting part 163 and the movable part 162 are in the compressed position, the supporting part 163 and the movable part 162 retract toward the fixed part 161. By providing the clearance notch 133B in the mounting plate 133, when the supporting part 163 and the movable part 162 retract, they can be positioned at the clearance notch 133B, thus preventing interference between the supporting member 160 and the mounting plate 133.

[0062] like Figure 7 As shown, in this embodiment of the drawer rear height adjustment device 100, the movable component 110 includes an adjustment plate 111. The adjustment plate 111 is installed on the side of the guide rail 200 at the bottom of the drawer, facing the other guide rail. That is, the adjustment plate 111 is as follows: Figure 1 When installed on the right side guide rail 200, it is installed on the left side of the right side guide rail 200 and is lower than the upper surface of the guide rail 200. Since the drawer is installed above the guide rail 200, the adjustment plate 111 is also located below the bottom plate of the drawer.

[0063] The first connecting part 112 is installed above the guide rail 200, that is... Figure 1 Above the central sliding rail, its first end is fixedly connected to the adjusting plate 111, and its second end is fixedly connected to the drawer tail plate. The first connecting part 112 can be fixedly connected to the drawer tail plate by means of external screws, adhesives, or other tools or by inserting it into the drawer tail plate.

[0064] In one exemplary embodiment, the first connecting portion 112 is configured as a tail hook.

[0065] For ease of adjustment, the drawer rear height adjustment device 100 also includes a locking component 150. Both the adjustment component 140 and the locking component 150 are mounted on the side of the adjustment plate 111. The adjustment component 140 drives the adjustment plate 111 to move up and down, thereby moving the first connecting part 112 up and down, and thus moving the drawer rear panel up and down, thereby adjusting the height of the drawer rear. The locking component 150 locks the position of the adjustment plate 111 before and after the adjustment component 140 adjusts the height of the adjustment plate 111, ensuring it remains in its current position. This also ensures that the first connecting part 112 remains at its current height, thus keeping the drawer rear panel at its current height. Specifically, the locking component 150 can lock the adjustment plate 111 to the moving rail. The locking method can be to directly lock the adjustment plate 111 to the side of the moving rail, or to provide auxiliary elements on the moving rail to lock the adjustment plate 111 to the locking element, thereby indirectly locking the adjustment plate 111 to the moving rail.

[0066] The drawer tail height adjustment device of this application embodiment is installed on the left and right side guide rails at the bottom of the drawer, and connected to the drawer tail plate through the first connecting part 112. The height of the moving part 110 is adjusted by the adjusting component 140, so that the moving part 110 moves up and down. The first connecting part 112 drives the drawer tail to move up and down, thereby adjusting the height of the drawer tail and adjusting the gap between the drawer panel and the cabinet body, so that the gap between the drawer panel and the cabinet body is uniform. This application also uses the locking component 150 to lock the position of the adjusting plate 111 so that the drawer is kept in the adjusted state.

[0067] like Figure 2 , Figure 7 As shown, in one embodiment, the fixing member 130 includes a fixing plate 131 disposed on the outside of the adjusting plate 111 and fixedly connected to the guide rail 200. Specifically, the fixing plate 131 is fixedly connected to the moving rail. The fixing plate 131 confines the adjusting plate 111 between itself and the side of the guide rail 200.

[0068] In an optional embodiment, the fixed plate 131 is provided with a guide groove extending in the vertical direction, and the adjusting plate 111 is provided with a corresponding limiting protrusion that cooperates with the guide groove, so that the adjusting plate 111 can be limited when it moves up and down relative to the fixed plate 131.

[0069] In other embodiments, the guide groove and the limiting protrusion may include multiple parts, or the limiting protrusion may be provided on the fixed plate 131 and the guide groove may be provided on the adjusting plate 111.

[0070] like Figure 7 As shown, in one embodiment, the adjustment assembly 140 includes a rotary adjustment member 141 and a guide post 142. A mounting cavity 1311 for accommodating the rotary adjustment member 141 is defined between the fixing plate 131 and the adjustment plate 111. The rotary adjustment member 141 has a spiral groove 1412 on the side facing the adjustment plate 111. The guide post 142 is disposed on the adjustment plate 111 and extends into the spiral groove 1412 to cooperate with the rotation of the rotary adjustment member 141 to realize the up and down movement of the adjustment plate 111.

[0071] Specifically, the mounting cavity 1311 can be formed by a portion of the fixed plate 131 protruding outward and enclosing the adjusting plate 111. The spiral groove 1412 is eccentrically set with the center of the rotating adjusting member 141. Thus, when the rotating adjusting member 141 rotates, under the limiting action of the guide groove and the limiting protrusion, it drives the guide column 142 to move up and down, thereby driving the adjusting plate 111 to move up and down, and realizing the adjustment of the height of the drawer rear.

[0072] To achieve the rotation adjustment operation of the rotary adjustment component 141, such as Figure 7 , Figure 10 and Figure 11As shown, the rotary adjustment member 141 includes a rotating part 1411 located within the mounting cavity 1311, and a spiral groove 1412 disposed on the side of the rotating part 1411 facing the adjustment plate 111. The fixing plate 131 has an operating hole 1312 at a corresponding position in the mounting cavity 1311. The rotary adjustment member 141 also includes a first operating part 1413 disposed outside the rotating part 1411, with a diameter smaller than the operating hole 1312, and extending beyond the operating hole 1312. The diameter of the rotating part 1411 is larger than that of the operating hole 1312. In this embodiment, the first operating part 1413 extends beyond the operating hole 1312, thereby allowing the first operating part 1413 to be operated manually or with tools to drive the rotating part 1411 to rotate and drive the guide post 142 to move up and down.

[0073] like Figure 2 and Figure 8 As shown, in this embodiment, an adjustment port 1313 can also be provided at the bottom of the mounting cavity 1311, and a second operating part 1414 is provided on the periphery of the rotating part 1411. The second operating part 1414 extends out of the adjustment port 1313, so that the first operating part 1413 can be operated manually or by means of a tool to drive the rotating part 1411 to rotate and drive the guide column 142 to move up and down.

[0074] Specifically, such as Figure 10 As shown, the first operating part 1413 is a cross groove, and the second operating part 1414 is a gear-shaped structure.

[0075] like Figure 7 and Figure 9 As shown, in order to lock the vertical position of the adjusting plate 111, this embodiment locks the adjusting plate 111 and the fixed plate 131. Specifically, the locking component 150 includes a first locking member 151 and a first locking hole 152 located on the adjusting plate 111. The fixed plate 131 is provided with a first strip hole 1317 extending vertically corresponding to the first locking hole 152. The first locking member 151 passes through the first strip hole 1317 and cooperates with the first locking hole 152 to lock the fixed plate 131 and the adjusting plate 111.

[0076] Preferably, the first locking member 151, the first locking hole 152, and the first strip hole 1317 can be in multiple sets.

[0077] Specifically, the first locking hole 152 can be a threaded hole, and the first locking element 151 can be a screw. The screw passes through the first strip hole 1317 and engages with the threaded hole, which can adjust the distance between the fixed plate 131 and the adjusting plate 111, so that the adjusting plate 111 is close to the fixed plate 131 or separated from it, so that the height of the adjusting plate 111 is adjustable or the adjusting plate 111 is locked.

[0078] Preferably, at least one of the fixed plate 131 and the adjusting plate 111 is provided with a plurality of first arc-shaped protrusions (not shown) facing the other. The fixed plate 131 and the adjusting plate 111 are in contact through the first arc-shaped protrusions, thereby reducing the friction between the two when the adjusting plate 111 moves relative to the fixed plate 131. The first arc-shaped protrusions are preferably hemispherical in shape.

[0079] To make the adjusting plate 111 move up and down more smoothly relative to the side of the guide rail 200, such as Figure 9 As shown, in a preferred embodiment, the adjusting plate 111 has a plurality of second arc-shaped protrusions 1111 on the side facing the guide rail 200, and the adjusting plate 111 and the guide rail 200 are in contact through the second arc-shaped protrusions 1111. In other embodiments, the second arc-shaped protrusions 1111 may also be provided on the side of the guide rail 200.

[0080] In one embodiment, such as Figure 8 As shown, the fixing member 130 also includes a guide plate 132 mounted above the guide rail 200. The guide plate 132 is connected to the fixing plate 131, and the mounting plate 133 is connected to the guide plate 132. A first connecting hole 130A is provided on the guide plate 132. Figure 7 and Figure 9 As shown, the movable component 110 also includes a connecting plate 113 mounted above the guide rail 200. The connecting plate 113 is fixedly connected to the first end of the adjusting plate 111 and the first connecting portion 112, respectively. A third arc-shaped protrusion is provided on the side of the connecting plate 113 facing the guide plate 132, and the guide plate 132 and the connecting plate 113 are in contact through the third arc-shaped protrusion. In other embodiments, the third arc-shaped protrusion may also be provided on the side of the guide plate 132 facing the connecting plate 113.

[0081] In this embodiment, since the first connecting part 112 is located above the guide rail 200 and away from the adjusting plate 111, by setting a guide plate 132 above the guide rail 200 and a connecting plate 113 connected to the fixing plate 131, the connection between the guide plate 132 and the first connecting part 112 can be strengthened, making the up-and-down movement of the first connecting part 112 more stable and preventing it from deviating during movement. At the same time, the connecting plate 113 can further stabilize the movement direction of the guide plate 132, thereby stabilizing the movement direction of the first connecting part 112.

[0082] In a preferred embodiment, such as Figures 7 to 9 As shown, the guide plate 132 and the mounting plate 133 are L-shaped. The bottom surface of the mounting plate 133, which is parallel to the guide rail 200, is provided with a fourth arc-shaped protrusion facing the top surface of the guide rail 200. The bottom surface of the mounting plate 133 contacts the top surface of the guide rail 200 through the fourth arc-shaped protrusion.

[0083] Preferred, such as Figures 7 to 9 As shown, the guide plate 132 is located on the rear side of the fixed plate 131 along the guide rail 200, and the connecting plate 113 is located on the rear side of the adjusting plate 111 along the guide rail 200, and the connecting plate 113 is located on the front side of the guide plate 132; thereby, the drawer can be installed on the rear side of the fixed plate 131 and the adjusting plate 111, reducing the installation space of the drawer tail height adjusting device 100 in the drawer mounting cavity 1311 in this embodiment of the application.

[0084] To achieve locking between the guide plate 132 and the connecting plate 113, the connecting plate 113 is provided with a second locking hole, and the guide plate 132 is provided with a second strip-shaped hole that extends vertically and vertically corresponding to the second locking hole. The second locking member passes through the second strip-shaped hole and cooperates with the second locking hole to lock the guide plate 132 and the connecting plate 113.

[0085] To achieve a fixed connection between the fixing plate 131 and the guide rail 200, such as Figure 2 and Figure 7 As shown, the moving rail has a clamping part 221 with an opening facing the tail of the guide rail 200 on its side. The fixing plate 131 includes a second connecting part 1315 formed by bending it in the direction of the guide rail 200. The front end of the second connecting part 1315 forms a relief groove 1316. The clamping part 221 passes through the relief groove 1316 and clamps the second connecting part 1315. In this embodiment, the fixing plate 131 can be fixedly connected to the guide rail 200 by inserting the clamping part 221 through the second connecting part 1315 from the rear side of the guide rail 200. The relief groove 1316 can guide the connection process.

[0086] In this embodiment, the movable part 110 can be a metal part or a plastic part, preferably integrally formed, or it can be separately formed and connected by other connection methods. The fixed part 130 can also be a metal part or a plastic part, preferably integrally formed, or it can be separately formed and connected by other connection methods.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A drawer tail height adjustment device, characterized by, include: A fastener (130) is used to be mounted on one side of the guide rail (200); A movable component (110) is movably disposed between the fixed component (130) and the guide rail (200). The movable component (110) is provided with a first connecting part (112), which is used to connect the tail of the drawer. An adjustment assembly (140) is provided, wherein the movable member (110) is connected to the fixed member (130) via the adjustment assembly (140), and the adjustment assembly (140) is used to adjust the relative position of the movable member (110) and the fixed member (130) in the height direction so that the rear of the drawer can switch between the original position and the height-adjusted position. as well as A support member (160) is used to connect to the tail of the guide rail (200) and / or the support member (160) is connected to the fixing member (130). The support member (160) includes a support portion (163). When the tail of the drawer is in the height adjustment position, the support portion (163) is disposed between the tail of the drawer and the guide rail so that the support member (160) supports the tail of the drawer.

2. The drawer tail height adjustment device according to claim 1, characterized in that: The support member (160) further includes a fixed part (161) and a movable part (162). The fixed part (161) is connected to the tail of the guide rail (200), and / or the fixed part (161) is connected to the fixing member (130). One end of the movable part (162) is connected to the fixed part (161), and the other end of the movable part (162) is connected to the support part (163). When the tail of the drawer is in the original position, the movable part (162) and the support part (163) are positioned in the compressed position of the rear end face of the drawer. When the tail of the drawer is in the height adjustment position, the movable part (162) drives the support part (163) to move to the support position between the tail of the drawer and the top surface of the guide rail (200).

3. The drawer tail height adjustment device according to claim 2, characterized in that: The support part (163) is configured with a stepped structure on the side facing the drawer; or, the support part (163) is configured with a sloping structure on the side facing the drawer.

4. The drawer tail height adjustment device according to claim 2, characterized in that: The support portion (163) includes a first sub-support portion (1631) and a second sub-support portion (1632). The first sub-support portion (1631) is disposed on the top surface of the guide rail (200), and the second sub-support portion (1632) is disposed on the first sub-support portion (1631) along the height direction. The first sub-support portion (1631) and the second sub-support portion (1632) form a stepped structure.

5. The drawer tail height adjustment device according to claim 4, characterized in that: The first sub-support part (1631) has an arc-shaped end face on the side facing the back panel of the drawer.

6. The drawer tail height adjustment device according to claim 2, characterized in that: The fastener (130) is provided with a first connecting hole (130A), and the fixing part (161) is provided with a connecting buckle (1611), which is detachably connected to the first connecting hole (130A).

7. The drawer tail height adjustment device according to claim 2, characterized in that: The fastener (130) includes a mounting plate (133) and a fastener. The bottom surface of the mounting plate (133) abuts against the top surface of the guide rail (200). The mounting plate (133) is provided with a second connecting hole (133A). The fixing part (161) is disposed on the top surface of the mounting plate (133). The fixing part (161) is provided with a third connecting hole (161A) on the side facing the mounting plate (133). The fastener is connected to the third connecting hole (161A) through the second connecting hole (133A).

8. The drawer tail height adjustment device according to claim 7, characterized in that: The fixing part (161) has a mounting groove (161B) on the side facing the mounting plate (133), and the mounting plate (133) is disposed in the mounting groove (161B) so that the supporting part (163) abuts against the top surface of the guide rail (200).

9. The drawer tail height adjustment device according to claim 7, characterized in that: The mounting plate (133) is provided with a clearance notch (133B). When the movable part (162) and the supporting part (163) are in the compressed position, the movable part (162) and the supporting part (163) are disposed in the clearance notch (133B).

10. The drawer tail height adjustment device according to claim 1, characterized in that: The adjustment assembly (140) includes a rotary adjustment member (141) and a guide post (142). A mounting cavity (1311) for accommodating the rotary adjustment member (141) is defined between the fixing member (130) and the moving member (110). The rotary adjustment member (141) has a spiral groove (1412) on the side facing the moving member (110). The guide post (142) is provided on the moving part (110) and extends into the spiral groove (1412) to cooperate with the rotation adjustment part (141) to realize the up and down movement of the moving part (110).

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