Synchronization device for slide rails, slide rail

Abstract

This utility model relates to a synchronization device for a slide rail, and a slide rail having the synchronization device. The synchronization device for the slide rail of this utility model includes: a sliding assembly, the sliding assembly including a base and a first clamping member, the first clamping member being slidably disposed on the base, and the pushing part of the slide rail being able to abut against the first clamping member to push the first clamping member to slide; a transmission assembly, the transmission assembly including an output shaft and a rack, the end of the output shaft being provided with a gear, the rack being disposed on the first clamping member, and the rack meshing with the gear; and a locking assembly, the locking assembly including a track groove and a sliding hook, the track groove having a first hook groove, one end of the sliding hook being connected to the first clamping member, and the other end of the sliding hook being provided with a hanging post, the hanging post being slidably disposed in the track groove, and the hanging post being able to abut against the first hook groove.

Description

Technical Field

[0001] This utility model relates to the field of home hardware technology, and in particular to a synchronization device for a slide rail, and a slide rail having the synchronization device. Background Technology

[0002] Chinese Patent No. CN202120677301.3 discloses a drawer synchronous rebound device, which includes a rotating component, a connecting component, a sliding component, a reset device, and a synchronizing component. The rotating component includes a movable end and an output shaft, and the output shaft rotates synchronously with the rotating component. One end of the connecting component is rotatably connected to the movable end of the rotating component, and the other end of the connecting component is rotatably connected to the sliding component. The synchronizing component is connected to the output shaft and rotates synchronously. The sliding component includes an initial position and a final position, and the sliding component reciprocates between the initial position and the final position along a first direction. The rotating component, the connecting component, and the sliding component together constitute a crank-slider mechanism. The reset device is connected to the sliding component and has a tendency to move the sliding component from the final position to the initial position.

[0003] However, this drawer synchronous rebound device does not have an automatic drawer locking function, and there is room for further improvement. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a synchronization device for a slide rail and a slide rail having the synchronization device.

[0005] A synchronization device for a slide rail, the synchronization device comprising: a sliding assembly including a base and a first clamping member, the first clamping member being slidably disposed on the base, and a pushing part of the slide rail being able to abut against the first clamping member to push the first clamping member to slide; a transmission assembly including an output shaft and a rack, the end of the output shaft being provided with a gear, the rack being disposed on the first clamping member, and the rack meshing with the gear; and a locking assembly including a track groove and a sliding hook, the track groove having a first hook groove, one end of the sliding hook being connected to the first clamping member, and the other end of the sliding hook being provided with a hanging post, the hanging post being slidably disposed in the track groove, and the hanging post being able to abut against the first hook groove.

[0006] Furthermore, the track groove also has a second hook groove, the distance between the second hook groove and the first clamping member is greater than the distance between the first hook groove and the first clamping member, and the hanging post can be hooked in the second hook groove.

[0007] Furthermore, the base is provided with an irregularly shaped recess, and an irregularly shaped protrusion is provided in the irregularly shaped recess. The irregularly shaped recess and the irregularly shaped protrusion constitute the trajectory groove. The first hook groove is provided on the outer contour of the irregularly shaped protrusion, and the second hook groove is provided on the outer contour of the irregularly shaped protrusion.

[0008] Furthermore, the track groove includes a first slide, a second slide, and a third slide, which are sequentially connected end-to-end to form a loop-shaped track groove. The tail of the first slide is higher than the head of the second slide, the tail of the second slide is higher than the head of the third slide, and the tail of the third slide is higher than the head of the first slide. The first hook groove is disposed at the connection between the first slide and the second slide, and the second hook groove is disposed at the connection between the second slide and the third slide.

[0009] Furthermore, the tail of the first slide is higher than the head of the first slide, the tail of the second slide is higher than the head of the second slide, and the tail of the third slide is higher than the head of the third slide.

[0010] Furthermore, the locking component also includes a reset groove, one end of which is a closed end, and the other end of which is connected to the track groove. The guiding direction of the reset groove is parallel to the sliding direction of the first clamping member, and the hanging post slides within the reset groove.

[0011] Furthermore, the reset groove is connected to the head of the first slide, and the bottom surface of the reset groove and the bottom surface of the first slide are on the same plane.

[0012] Furthermore, the locking assembly also includes an elastic element connected to the first clamping member, the elastic element causing the first clamping member to move away from the track groove.

[0013] Further, the sliding assembly includes a second clamping member, which is slidably disposed on the first clamping member. The sliding direction of the second clamping member intersects with the sliding direction of the first clamping member. The second clamping member and the first clamping member can form a clamping area for clamping the pushing part of the slide rail. The first clamping member has a first working position and a second working position. When the first clamping member is in the first working position, the pushing part can freely enter and exit the clamping area. When the first clamping member is in the second working position, the second clamping member extends from the first clamping member. The second clamping member and the first clamping member are respectively located on both sides of the pushing part. The first clamping member together confines the pushing part within the clamping area; the base has an inclined guide surface, the second clamping member slides on the guide surface, and the second clamping member has a third working position and a fourth working position on the guide surface, the fourth working position being higher than the third working position; when the first clamping member is in the first working position, the second clamping member is in the third working position, and the pushing part can freely enter and exit the clamping area; when the first clamping member is in the second working position, the second clamping member is in the fourth working position, and the second clamping member and the first clamping member together confine the pushing part within the clamping area; the base also has a support surface, the support surface being flush with the base. The guide surface is connected to the support surface, and the support surface intersects with the guide surface. The second clamping member slides on the support surface and has a fifth working position on the support surface, which is higher than the third working position. When the second clamping member is in the fifth working position, the second clamping member and the first clamping member together confine the pushing part within the clamping area. The support surface is horizontally arranged. The top surface of the base is provided with an upward-opening receiving groove, and the guide surface is disposed in the receiving groove. The support surface is a part of the top surface of the base. The second clamping member has a first bearing surface that abuts against the guide surface, and the second clamping member also has a second bearing surface that abuts against the support surface. The first bearing surface abuts against the guide surface when the second clamping member slides on the guide surface; the second bearing surface abuts against the support surface when the second clamping member slides on the support surface; the second clamping member has a pressure-applying part, which is disposed opposite to the first clamping member, and the pressure-applying part and the first clamping member constitute the clamping area; the pressure-applying part has a first form and a second form; when the pushing part does not abut against the pressure-applying part, the pressure-applying part is in the first form; when the pushing part abuts against the pressure-applying part, the pressure-applying part changes from the first form to the second form, and the force of the pushing part on the pressure-applying part can cause the second clamping member to fall into the receiving groove;The second clamping member has a groove at its upper end to form the pressure-applying part at its upper end. During the transition of the pressure-applying part from the first form to the second form, the space of the groove decreases. The second clamping member has a pressure-applying inclined surface, which is opposite to the first clamping member. The pressure-applying inclined surface and the first clamping member constitute the clamping area. When the pushing part abuts against the pressure-applying inclined surface, the force exerted by the pushing part on the pressure-applying inclined surface can cause the second clamping member to fall into the receiving groove. The pressure-applying inclined surface is disposed on the surface opposite to the pressure-applying part and the first clamping member. The first clamping member has a guide hole that extends vertically up and down. The second clamping member is disposed within the guide hole and slides up and down along the guide hole. The lower end of the inner peripheral wall of the guide hole has a guide groove, one end of which is open and the other end is closed. A guide part is disposed on the periphery of the second clamping member, and the guide part is slidably disposed within the guide groove. The sliding assembly also includes a housing that covers the base, forming a sliding space between the base and the housing. The first clamping member moves within this sliding space. The housing has a groove communicating with the sliding space. The first clamping member has a clamping portion slidably disposed within the groove, with a portion extending out of the groove to be positioned within the trajectory of the pushing member. The second clamping member moves within the groove. A first guide slope is provided at the end of the groove. When the second clamping member abuts against the first guide slope, it slides along the first guide slope towards the receiving groove. A second guide slope is provided on the side of the second clamping member away from the clamping portion. When the second clamping member abuts against the end of the groove, it slides towards the receiving groove under the action of the second guide slope. The second guide slope matches the first guide slope, allowing the second clamping member to slide along the first guide slope towards the receiving groove.

[0014] A slide rail, comprising the aforementioned synchronization device for the slide rail.

[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly of the slide rail and synchronization device described in the embodiment; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the assembly of the synchronization device described in the embodiment; Figure 4This is an exploded schematic diagram of the synchronization device described in the embodiment; Figure 5 This is a perspective view of the base described in the embodiment; Figure 6 This is a top view of the base described in the embodiment; Figure 7 This is a perspective view of the outer casing described in the embodiment; Figure 8 This is a top view of the first clamping member described in the embodiment; Figure 9 This is a bottom schematic diagram of the first clamping member described in the embodiment; Figure 10 This is a perspective view of the second clamping member described in the embodiment; Figure 11 This is an exploded view of the transmission assembly described in the embodiment; Figure 12 This is a schematic diagram showing the first clamping member in the first working position according to the embodiment; Figure 13 This is a schematic diagram showing the first clamping member in the second working position according to the embodiment; Figure label: 1. Lower rail; 2. Upper rail; 21. Pushing part; 3. Sliding assembly; 31. Base; 311. Guide surface; 312. Support surface; 313. Receiving groove; 32. Housing; 321. Slide groove; 322. First guide slope; 323. Mounting base; 324. Clip; 325. Positioning groove; 33. First clamping member; 331. Clamping part; 332. Guide hole; 333. Guide groove; 34. Second clamping member; 341. First bearing surface; 342. Second bearing surface; 343. Guide part; 344. Pressing part; 345. Groove; 346. Pressing slope; 347. Second guide slope; 3a. Sliding space; 3b. Clamping 4. Transmission assembly; 41. Output shaft; 411. Gear; 412. Connecting part; 42. Synchronizing rod; 421. Receiving cavity; 422. Opening; 43. Bushing; 431. Groove; 432. Fastener; 433. First elastic snap-fit ​​part; 434. Second elastic snap-fit ​​part; 435. Gap; 436. Positioning part; 44. Rack; 5. Locking assembly; 51. Track groove; 511. First hook groove; 512. Second hook groove; 513. First slide rail; 514. Second slide rail; 515. Third slide rail; 52. Reset groove; 53. Sliding hook; 531. Hanging post; 54. Elastic element; 55. Irregularly shaped concave part; 56. Irregularly shaped convex part. Detailed Implementation

[0017] The technical solutions of the embodiments of this application 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 this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] It should be understood that in the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing 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 this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. That is, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, unless otherwise stated, "a plurality of" means two or more.

[0019] It should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "set up," "connected," "linked," and "hollow" 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 this application based on the specific circumstances.

[0020] See Figure 1 and Figure 2 This embodiment provides a slide rail, which includes at least a lower rail 1 and an upper rail 2. The upper rail 2 is movable relative to the lower rail 1. The upper rail 2 has a pushing part 21. In this embodiment, the pushing part 21 is a pin, which is fixedly disposed on the inner side of the upper rail 2. Of course, in addition to being a two-section slide rail, this slide rail can also be a three-section slide rail, that is, the slide rail includes a middle rail, which is movably disposed on the lower rail 1, and the upper rail 2 is movably disposed on the middle rail. In actual use, one of the above-mentioned slide rails is installed on each of the left and right sides of the drawer.

[0021] See Figure 1This embodiment also provides a synchronization device for driving the upper rails 2 of the drawer slides on both sides to move synchronously. The synchronization device includes at least a sliding component 3 and a transmission component 4. Each of the two slides is equipped with a sliding component 3, and a transmission component 4 for synchronous operation is provided between the two sliding components 3.

[0022] See Figure 3 , 4 12, 13. The sliding assembly 3 includes a base 31, a housing 32, a first clamping member 33, and a second clamping member 34. The base 31 can be directly or indirectly fixedly connected to the lower rail 1, meaning the base 31 and the lower rail 1 are relatively fixed. The housing 32 covers the base 31, forming a sliding space 3a. The first clamping member 33 is slidably disposed on the base 31 and moves within the sliding space 3a. A portion of the first clamping member 33 extends beyond the housing 32, and this extended portion is located within the movement trajectory of the pin. During the movement of the upper rail 2, the pin abuts against the extended portion to push the first clamping member 33 to move synchronously with the upper rail 2. The second clamping member 34 is slidably disposed on the first clamping member 33. The sliding direction of the second clamping member 34 intersects with the sliding direction of the first clamping member 33. A portion of the second clamping member 34 extends out of the outer shell 32, and the extended portion of the second clamping member 34 and the extended portion of the first clamping member 33 can form a clamping area 3b. The second clamping member 34 and the first clamping member 33 together limit the pin of the slide rail within the clamping area 3b. The first clamping member 33 has a first working position and a second working position. When the first clamping member 33 is in the first working position, the second clamping member 34 retracts into the first clamping member 33, and the pin of the upper rail 2 can freely enter and exit the clamping area 3b, so that the pin of the upper rail 2 can touch the part of the first clamping member 33 that extends out of the outer shell 32. When the first clamping member 33 is in the second working position, a part of the second clamping member 34 extends out of the first clamping member 33, and this part also extends out of the outer shell 32, so that the extended part of the second clamping member 34 and the extended part of the first clamping member 33 are respectively located on both sides of the pin of the upper rail 2, thereby confining the pin of the upper rail 2 within the clamping area 3b, so that the first clamping member 33, the second clamping member 34, and the upper rail 2 can move together.

[0023] See Figure 5 and Figure 6 , Figure 5 and Figure 6The specific structure of the base 31 is disclosed. As shown in the figure, the base 31 has an inclined guide surface 311, and the second clamping member 34 slides on the guide surface 311. The second clamping member 34 has a third working position and a fourth working position on the guide surface 311, with the fourth working position located below the third working position. When the first clamping member 33 is in the first working position, the second clamping member 34 is in the third working position, and the pin of the slide rail can freely enter and exit the clamping area 3b. When the first clamping member 33 is in the second working position, the second clamping member 34 is in the fourth working position, and the second clamping member 34 and the first clamping member 33 together confine the pin of the slide rail within the clamping area 3b. In addition, to maintain the pin within the clamping area 3b, the base 31 also has a support surface 312, which intersects with and connects to the guide surface 311, allowing the second clamping member 34 to slide directly from the guide surface 311 onto the support surface 312. During the sliding process of the second clamping member 34 on the support surface 312, the second clamping member 34 has a fifth working position on the support surface 312, which is at least higher than the third working position. When the second clamping member 34 is in the fifth working position, the second clamping member 34 and the first clamping member 33 together constrain the pin of the slide rail within the clamping area 3b. To prevent the second clamping member 34 from easily sliding back from the supporting surface 312 to the guiding surface 311, the fifth working position is not higher than the fourth working position. Preferably, the supporting surface 312 is horizontally arranged so that the fifth working position and the fourth working position are at the same height. This ensures that the second clamping member 34 can easily slide from the guiding surface 311 to the supporting surface 312, while increasing the difficulty for the second clamping member 34 to slide back from the supporting surface 312 to the guiding surface 311. In a specific embodiment, a receiving groove 313 with an upward opening 422 is provided on the top surface of the base 31. The receiving groove 313 has an inclined surface, which is the aforementioned guiding surface 311. The top surface of the base 31 is a horizontal plane, and part of the top surface of the base 31 constitutes the aforementioned supporting surface 312.

[0024] See Figure 7 , Figure 7The specific structure of the outer casing 32 is disclosed. As shown in the figure, the top surface of the outer casing 32 is provided with a sliding groove 321, which is connected to the sliding space 3a. A portion of the first clamping member 33 slides within the sliding groove 321, and a portion of the first clamping member 33 extends out of the sliding groove 321 so that this portion is in the movement trajectory of the pin. During the movement of the upper rail 2, the pin will abut against the first clamping member 33 to push the first clamping member 33 to move synchronously. Considering the machining accuracy issue, the second clamping member 34 may get stuck in the first clamping member 33 and not fall back into the receiving groove 313. Therefore, an inclined first guide slope 322 is provided at the end of the slide groove 321. The first guide slope 322 is located directly above the receiving groove 313 and faces the receiving groove 313. After the second clamping member 34 hits the first guide slope 322, the second clamping member 34 will move along the first guide slope 322 towards the receiving groove 313, ensuring that the second clamping member 34 will fall back into the receiving groove 313, and avoiding the situation where the second clamping member 34 is stuck in the first clamping member 33 and suspended above the receiving groove 313.

[0025] See Figure 8 and Figure 9 , Figure 8 and Figure 9 The specific structure of the first clamping member 33 is disclosed. As shown in the figure, a clamping portion 331 protrudes from the top surface of the first clamping member 33. The clamping portion 331 is slidably disposed in the slide groove 321 of the outer shell 32, and a part of the clamping portion 331 extends out from the slide groove 321 so that the part is in the movement trajectory of the pin. A guide hole 332 is provided on the top surface of the first clamping member 33. The guide hole 332 is located on one side of the clamping portion 331 and extends vertically. The second clamping member 34 is slidably disposed in the guide hole 332, so that the second clamping member 34 can slide up and down along the guide hole 332. A guide groove 333 is provided at the lower end of the inner peripheral wall of the guide hole 332. One end of the guide groove 333 is an open end 422, and the other end of the guide groove 333 is a closed end. Part of the second clamping member 34 is slidably disposed in the guide groove 333. Through this design, the up and down movement of the second clamping member 34 can be guided, and the range of upward movement of the second clamping member 34 can be limited to prevent the second clamping member 34 from excessively extending from the first clamping member 33.

[0026] See Figure 10 , Figure 10The specific structure of the second clamping member 34 is disclosed. As shown in the figure, the bottom surface of the second clamping member 34 is provided with a first bearing surface 341 and a second bearing surface 342. The first bearing surface 341 is inclined, and during the sliding of the second clamping member 34 on the guide surface 311, the first bearing surface 341 contacts the guide surface 311 and slides on the guide surface 311. The second bearing surface 342 is horizontal, and during the sliding of the second clamping member 34 on the support surface 312, the second bearing surface 342 contacts the support surface 312 and slides on the support surface 312. A guide portion 343 is also provided on the periphery of the bottom of the second clamping member 34, and the guide portion 343 is slidably disposed within a guide groove 333. A pressure-applying part 344 is provided on one side of the top of the second clamping member 34. The pressure-applying part 344 is disposed opposite to the clamping part 331. The pressure-applying part 344 and the clamping part 331 constitute the clamping area 3b mentioned above. The pressure-applying part 344 has a certain deformation, so that the pressure-applying part 344 has a first form and a second form. When the pin does not abut against the pressure-applying part 344, the pressure-applying part 344 is in the first form. At this time, the pressure-applying part 344 is in a natural state and no deformation occurs. When the pin abuts against the pressure-applying part 344, the pressure-applying part 344 deforms and changes from the first form to the second form. During the process of the pressure-applying part 344 being in the second form, part of the force exerted by the pin on the pressure-applying part 344 will point towards the receiving groove 313, thereby pushing the second clamping member 34 to fall back into the receiving groove 313. In this embodiment, to form the aforementioned pressure-applying portion 344, a groove 345 is provided on the top of the second clamping member 34 to form the pressure-applying portion 344 at the upper end of the second clamping member 34. Through this design, the root of the pressure-applying portion 344 is relatively narrow, and because the second clamping member 34 is made of plastic, the pressure-applying portion 344 exhibits a certain degree of deformation. Furthermore, as the pressure-applying portion 344 transforms from the first form to the second form, the space of the groove 345 gradually decreases. The pressure-applying portion 344 is provided with a pressure-applying inclined surface 346, which is positioned opposite to the clamping portion 331. The pressure-applying inclined surface 346 is part of the clamping area 3b. When the pin abuts against the pressure-applying inclined surface 346, a portion of the force exerted by the pin on the pressure-applying inclined surface 346 will point towards the receiving groove 313, thereby pushing the second clamping member 34 back into the receiving groove 313. In addition, a second guide slope 347 is provided on the other side of the top of the second clamping member 34. That is, the second guide slope 347 is located on the side of the second clamping member 34 away from the clamping part 331, and the second guide slope 347 matches the first guide slope 322 so that the second clamping member 34 slides along the first guide slope 322 toward the receiving groove 313.

[0027] See Figure 11The transmission assembly 4 includes at least an output shaft 41, a synchronizing rod 42, and a bushing 43. The output shaft 41 is rotatably mounted on the housing 32 of the sliding assembly 3, and its rotation is driven by the movement of the first clamping member 33. The first clamping member 33 can directly drive the output shaft 41 to rotate. In this embodiment, a gear 411 is provided at the first end of the output shaft 41. The transmission assembly 4 also includes a rack 44, which is mounted on the first clamping member 33 and integrally formed with it. The rack 44 meshes with the gear 411. Horizontal movement of the first clamping member 33 causes the rack 44 to move accordingly, and the meshing of the rack 44 with the gear 411 drives the output shaft 41 to rotate. Alternatively, the first clamping member 33 can also indirectly drive the output shaft 41 to rotate. For example, a crank-slider mechanism can be provided between the first clamping member 33 and the output shaft 41, as described in Chinese Patent No. CN202120677301.3, which will not be elaborated further here. The end of the synchronizing rod 42 is provided with a receiving cavity 421 for the output shaft 41 to be inserted. An opening 422 is formed on the side wall of the receiving cavity 421, allowing the output shaft 41 to enter the receiving cavity 421. Furthermore, the synchronizing rod 42 rotates synchronously with the output shaft 41. In this embodiment, the second end of the output shaft 41 has a non-circular connecting portion 412, which is inserted into the receiving cavity 421. The connecting portion 412 and the receiving cavity 421 are adapted to each other. This design allows the output shaft 41 to directly drive the synchronizing rod 42 to rotate. Preferably, the connecting portion 412 and the receiving cavity 421 are both square structures. A bushing 43 is fitted onto the synchronizing rod 42 and is snap-fitted to the outer shell 32 of the sliding assembly 3. The bushing 43 and the synchronizing rod 42 can rotate relative to each other. During the rotation of the synchronizing rod 42, the bushing 43 closes the opening 422 to prevent the output shaft 41 from falling out of the opening 422. In actual operation, the pins of the slide rail abut against the clamping part 331 of the first clamping member 33 to push the first clamping member 33 to move. The movement of the first clamping member 33 will drive the synchronizing rod 42 to rotate. The rotation of the synchronizing rod 42 will drive the first clamping member 33 on the other side to move, thereby realizing the synchronous movement of the sliding components 3 on both sides of the drawer.

[0028] See Figure 7 and Figure 11The outer casing 32 has a protruding mounting base 323 on its side. A retaining element 324 is provided on the outer periphery of the mounting base 323. The bushing 43 has a groove 431 that matches the mounting base 323. A fastener 432 that engages with the retaining element 324 is provided on the inner periphery of the groove 431. During installation, the mounting base 323 is inserted into the groove 431 of the bushing 43. When fully installed, the retaining element 324 and the fastener 432 interlock to secure the bushing 43 to the outer casing 32. To facilitate the insertion of the mounting base 323 into the groove 431 and to enhance the locking force between the clip 324 and the fastener 432, the end of the bushing 43 is provided with a first elastic clip 433 and a second elastic clip 434. The first elastic clip 433 and the second elastic clip 434 together form the groove 431. A gap 435 is provided between the first elastic clip 433 and the second elastic clip 434. A fastener 432 is provided on the inner side of the first elastic clip 433. Alternatively, the second elastic latching part 434 may have gaps 435 on both sides, meaning that one end of the first elastic latching part 433 or the second elastic latching part 434 is a fixed end and the other end is a free end, giving the first elastic latching part 433 or the second elastic latching part 434 a certain degree of elasticity, thereby effectively increasing the locking force between the clip 324 and the fastener 432. At the same time, the mounting base 323 can open the first elastic latching part 433 and the second elastic latching part 434, thereby facilitating the insertion of the mounting base 323 into the groove 431. In this embodiment, the end of the bushing 43 is provided with two first elastic latching parts 433 and two second elastic latching parts 434. The two first elastic latching parts 433 are arranged opposite each other, and the two first elastic latching parts 433 and the two second elastic latching parts 434 together form a square groove 431. In addition, in order to position the mounting base 323 and the bushing 43 and to increase the locking force between the mounting base 323 and the bushing 43, the mounting base 323 is provided with a positioning groove 325. The positioning groove 325 is located on the outer periphery of the end face of the mounting base 323. The inner side of the second elastic buckle part 434 is provided with a positioning part 436, which cooperates with the positioning groove 325.

[0029] See Figure 4-6The synchronization device also includes a locking component 5. The locking component 5 includes a track groove 51, a reset groove 52, a sliding hook 53, and an elastic element 54. The track groove 51 is disposed on the base 31, located in front of the first clamping member 33, and is loop-shaped, with at least one hook groove. The reset groove 52 is disposed on the base 31, located in front of the first clamping member 33, with one end closed and the other end connected to the track groove 51. The reset groove 52 is a straight groove, and its guiding direction is parallel to the sliding direction of the first clamping member 33. One end of the sliding hook 53 is fixedly connected to the front end of the first clamping member 33, and the other end of the sliding hook 53 is provided with a hanging post 531. The hanging post 531 can slide within the reset groove 52 and the track groove 51. The movement trajectory of the hanging post 531 is as follows: it slides from the closed end of the reset groove 52 into the head of the track groove 51, moves from the head of the track groove 51 to the tail of the track groove 51, and then slides back into the reset groove 52 from the tail of the track groove 51. Furthermore, the hanging post 531 can be hooked in the hook groove, thereby closing the drawer. One end of the elastic member 54 is connected to the first clamping member 33, and the other end of the elastic member 54 is connected to the base 31 or the outer shell 32. The elastic member 54 is used to drive the first clamping member 33 to move away from the track groove 51. In this embodiment, the elastic member 54 is a spring. In actual operation, when the drawer needs to be closed, push the drawer inward. The pins of the slide rail abut against the clamping part 331 of the first clamping member 33, pushing the first clamping member 33 towards the track groove 51. At this time, the hanging post 531 moves from the closed end of the reset groove 52 towards the track groove 51. The hanging post 531 moves from one side of the track groove 51 towards the hook groove. After the hanging post 531 moves to the hook groove, the elastic member 54 pulls the first clamping member 33, causing the hanging post 531 to hook into the groove, completing the drawer closure. When the drawer needs to be opened, push the drawer slightly inward, causing the hanging post 531 to disengage from the hook groove. The hanging post 531 slides back into the reset groove 52 from the other side of the track groove 51, and the elastic member 54 drives the first clamping member 33 to move away from the track groove 51. The clamping part 331 of the first clamping member 33 pushes the upper rail 2 of the slide rail to move, thereby realizing the automatic opening of the drawer. Furthermore, the transmission mechanism is a gear 411 and rack 44 mechanism, which has low machining and assembly precision. However, the locking method provided in this embodiment has a certain fault tolerance rate, which can ensure that the sliding hook 53 is engaged in the hook groove and improve the stability of locking.

[0030] Furthermore, because the transmission mechanism uses a gear 411 and rack 44 mechanism, the gap 435 between the gear 411 and rack 44 is relatively large, and this mechanism is prone to skipping teeth due to forceful operation. This could cause the hanging post 531 to go over the hook groove, failing to close the drawer. To solve this problem, the track groove 51 has a first hook groove 511 and a second hook groove 512. The distance between the second hook groove 512 and the first clamping member 33 is greater than the distance between the first hook groove 511 and the first clamping member 33. When the hanging post 531 goes over the first hook groove 511, either the hanging post 531 directly hooks into the second hook groove 512, or the hanging post 531 slides back into the first hook groove 511 from the second hook groove 512, hooking into the first hook groove 511, thus achieving automatic drawer closure.

[0031] Specifically, the base 31 is provided with an irregularly shaped recess 55, and an irregularly shaped protrusion 56 is provided within the irregularly shaped recess 55. The irregularly shaped recess 55 and the irregularly shaped protrusion 56 constitute a track groove 51. The track groove 51 includes a first slide rail 513, a second slide rail 514, and a third slide rail 515. The first slide rail 513, the second slide rail 514, and the third slide rail 515 are connected end-to-end in sequence to form a loop-shaped track groove 51. The tail of the first slide rail 513 is higher than the head of the second slide rail 514, the tail of the second slide rail 514 is higher than the head of the third slide rail 515, the tail of the third slide rail 515 is higher than the head of the first slide rail 513, the tail of the first slide rail 513 is higher than the head of the first slide rail 513, the tail of the second slide rail 514 is higher than the head of the second slide rail 514, and the tail of the third slide rail 515 is higher than the head of the third slide rail 515. The first hook groove 511 is provided on the outer contour of the irregular protrusion 56, and is located at the connection between the first slide rail 513 and the second slide rail 514. The second hook groove 512 is provided on the outer contour of the irregular protrusion 56, and is located at the connection between the second slide rail 514 and the third slide rail 515. The reset groove 52 is connected to the head of the first slide rail 513, and the bottom surface of the reset groove 52 is on the same plane as the bottom surface of the first slide rail 513. Through this design, the height difference between adjacent slide rails can confine the hanging column 531 in the hook groove, and at the same time, it can also limit the hanging column 531 to unidirectional movement, improve the stability of the entire system, and ensure that the drawer can close automatically.

[0032] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A synchronization device for slide rails, characterized by, The synchronization device includes: The sliding assembly (3) includes a base (31) and a first clamping member (33). The first clamping member (33) is slidably disposed on the base (31). The pushing part (21) of the slide rail can abut against the first clamping member (33) to push the first clamping member (33) to slide. The transmission assembly (4) includes an output shaft (41) and a rack (44). A gear (411) is provided at the end of the output shaft (41), and the rack (44) is provided on the first clamping member (33). The rack (44) meshes with the gear (411). The locking component (5) includes a track groove (51) and a sliding hook (53). The track groove (51) has a first hook groove (511). One end of the sliding hook (53) is connected to the first clamping member (33). The other end of the sliding hook (53) is provided with a hanging post (531). The hanging post (531) is slidably disposed in the track groove (51) and can be hooked in the first hook groove (511).

2. The synchronization device for slide rails according to claim 1, characterized in that: The track groove (51) also has a second hook groove (512), the distance between the second hook groove (512) and the first clamping member (33) is greater than the distance between the first hook groove (511) and the first clamping member (33), and the hanging post (531) can be hung in the second hook groove (512).

3. The synchronization device for slide rails according to claim 2, wherein: The base (31) is provided with an irregularly shaped recess (55), and an irregularly shaped protrusion (56) is provided in the irregularly shaped recess (55). The irregularly shaped recess (55) and the irregularly shaped protrusion (56) constitute the trajectory groove (51). The first hook groove (511) is provided on the outer contour of the irregularly shaped protrusion (56), and the second hook groove (512) is provided on the outer contour of the irregularly shaped protrusion (56).

4. The synchronization device for slide rails according to claim 2, wherein: The track groove (51) includes a first slide (513), a second slide (514), and a third slide (515). The first slide (513), the second slide (514), and the third slide (515) are connected end to end in sequence to form a loop-shaped track groove (51). The tail of the first slide (513) is higher than the head of the second slide (514), the tail of the second slide (514) is higher than the head of the third slide (515), and the tail of the third slide (515) is higher than the head of the first slide (513). The first hook groove (511) is provided at the connection between the first slide (513) and the second slide (514), and the second hook groove (512) is provided at the connection between the second slide (514) and the third slide (515).

5. The synchronization device for slide rails according to claim 4, wherein: The tail of the first slide (513) is higher than the head of the first slide (513), the tail of the second slide (514) is higher than the head of the second slide (514), and the tail of the third slide (515) is higher than the head of the third slide (515).

6. The synchronization device for slide rails according to claim 4, wherein: The locking component (5) further includes a reset groove (52), one end of which is a closed end, and the other end of which is connected to the track groove (51). The guiding direction of the reset groove (52) is parallel to the sliding direction of the first clamping member (33), and the hanging post (531) slides in the reset groove (52).

7. The synchronization device for slide rails according to claim 6, wherein: The reset groove (52) is connected to the head of the first slide (513), and the bottom surface of the reset groove (52) and the bottom surface of the first slide (513) are on the same surface.

8. The synchronization device of claim 1, wherein: The locking assembly (5) further includes an elastic element (54) connected to the first clamping member (33), the elastic element (54) causing the first clamping member (33) to move away from the track groove (51).

9. The synchronization device for a slide rail according to claim 1, characterized in that: The sliding assembly (3) includes a second clamping member (34), which is slidably disposed on the first clamping member (33). The sliding direction of the second clamping member (34) intersects with the sliding direction of the first clamping member (33). The second clamping member (34) and the first clamping member (33) can form a clamping area (3b) for clamping the push part (21) of the slide rail. The first clamping member (33) has a first working position and a second working position. When the first clamping member (33) is in the first working position, the pushing part (21) can freely enter and exit the clamping area (3b). When the first clamping member (33) is in the second working position, the second clamping member (34) extends from the first clamping member (33). The second clamping member (34) and the first clamping member (33) are respectively located on both sides of the pushing part (21). The second clamping member (34) and the first clamping member (33) together limit the pushing part (21) within the clamping area (3b). The base (31) has an inclined guide surface (311), and the second clamping member (34) slides on the guide surface (311). The second clamping member (34) has a third working position and a fourth working position on the guide surface (311), and the fourth working position is higher than the third working position. When the first clamping member (33) is in the first working position, the second clamping member (34) is in the third working position, and the pushing part (21) can freely enter and exit the clamping area (3b). When the first clamping member (33) is in the second working position, the second clamping member (34) is in the fourth working position, and the second clamping member (34) and the first clamping member (33) together confine the pushing part (21) within the clamping area (3b). The base (31) also has a support surface (312), which is connected to the guide surface (311) and intersects with the guide surface (311). The second clamping member (34) slides on the support surface (312). The second clamping member (34) has a fifth working position on the support surface (312), which is higher than the third working position. When the second clamping member (34) is in the fifth working position, the second clamping member (34) and the first clamping member (33) together limit the pushing part (21) within the clamping area (3b). The support surface (312) is horizontally arranged; the top surface of the base (31) is provided with an upward-facing receiving groove (313), the guide surface (311) is arranged in the receiving groove (313), and the support surface (312) is a part of the top surface of the base (31); The second clamping member (34) has a first bearing surface (341) that abuts against the guide surface (311), and the second clamping member (34) also has a second bearing surface (342) that abuts against the support surface (312); when the second clamping member (34) slides on the guide surface (311), the first bearing surface (341) abuts against the guide surface (311); when the second clamping member (34) slides on the support surface (312), the second bearing surface (342) abuts against the support surface (312); The second clamping member (34) has a pressure-applying part (344), which is disposed opposite to the first clamping member (33). The pressure-applying part (344) and the first clamping member (33) constitute the clamping area (3b). The pressure-applying part (344) has a first form and a second form. When the pushing part (21) does not abut against the pressure-applying part (344), the pressure-applying part (344) is in the first form. When the pushing part (21) abuts against the pressure-applying part (344), the pressure-applying part (344) changes from the first form to the second form. The force exerted by the pushing part (21) on the pressure-applying part (344) can cause the second clamping member (34) to fall into the receiving groove (313). The upper end of the second clamping member (34) is provided with a groove (345) to form the pressure part (344) at the upper end of the second clamping member (34). During the process of the pressure part (344) changing from the first form to the second form, the space of the groove (345) becomes smaller. The second clamping member (34) has a pressure-applying inclined surface (346), which is disposed opposite to the first clamping member (33). The pressure-applying inclined surface (346) and the first clamping member (33) constitute the clamping area (3b). When the pushing part (21) abuts against the pressure-applying inclined surface (346), the force exerted by the pushing part (21) on the pressure-applying inclined surface (346) can cause the second clamping member (34) to fall into the receiving groove (313). The pressure-applying inclined surface (346) is disposed on the surface of the pressure-applying part (344) opposite to the first clamping member (33); The first clamping member (33) is provided with a guide hole (332), the guide hole (332) extends vertically up and down, the second clamping member (34) is disposed in the guide hole (332), and the second clamping member (34) slides up and down along the guide hole (332); The lower end of the inner peripheral wall of the guide hole (332) is provided with a guide groove (333), one end of the guide groove (333) is an open end (422), and the other end of the guide groove (333) is a closed end. The second clamping member (34) is provided with a guide part (343) on its periphery, and the guide part (343) is slidably disposed in the guide groove (333). The sliding assembly (3) further includes a housing (32), which covers the base (31). The base (31) and the housing (32) form a sliding space (3a), and the first clamping member (33) moves within the sliding space (3a). The outer shell (32) is provided with a slide groove (321), the slide groove (321) is connected to the sliding space (3a), the first clamping member (33) has a clamping part (331), the clamping part (331) is slidably disposed in the slide groove (321), and a part of the clamping part (331) extends out of the slide groove (321) so that the part is in the movement trajectory of the pushing part (21); The second clamping member (34) moves within the slide groove (321). The end of the slide groove (321) is provided with a first guide slope (322). When the second clamping member (34) abuts against the first guide slope (322), the second clamping member (34) slides along the first guide slope (322) toward the receiving groove (313). The second clamping member (34) is provided with a second guide slope (347) on the side away from the clamping part (331). When the second clamping member (34) abuts against the end of the slide groove (321), the second clamping member (34) slides towards the receiving groove (313) under the action of the second guide slope (347). The second guide ramp (347) matches the first guide ramp (322) so that the second clamping member (34) slides along the first guide ramp (322) toward the receiving groove (313).

10. A slide rail characterized by: It includes the synchronization device for the slide rail as described in any one of claims 1-9.

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