A linkage system for electric opening and closing of drawers

Abstract

This invention discloses a linkage system for the electric opening and closing of a drawer, comprising an energy storage component and a transmission component. The energy storage component includes a fixed base, an energy storage slide, and an energy storage spring. The energy storage slide can be locked into or unlocked from a preset energy storage position on the fixed base. The transmission component includes a transmission slide, which is formed with a pushing portion constrained between the fixed base and the energy storage slide. The pushing portion pushes the energy storage slide as the transmission slide moves forward, and the fixed base moves forward synchronously with the energy storage slide locked into the energy storage position until the transmission slide moves forward to its final position. Then, the energy storage slide unlocks and exits the energy storage position, causing the energy storage spring to release its elastic potential energy to drive the fixed base to continue moving forward. The pushing portion pushes the fixed base backward synchronously as the transmission slide moves backward. Simultaneously, the energy storage slide first slides in the opposite direction to the fixed base to lock into the energy storage position, and then moves backward synchronously with the fixed base.

Description

Technical Field

[0001] This invention relates to the technical field of electric drawer structures, and in particular to a linkage system suitable for the electric opening and closing of drawers. Background Technology

[0002] Currently, more and more products in home life have intelligent and electric functions, especially some furniture products that have introduced electric devices for drawers to realize the electric opening or closing of drawers. For example, the applicant's previous Chinese patent application "CN209846570U An Easy-to-Disassemble Electric Drawer" discloses "the use of a locking part that is elastically embedded in a locking groove to realize the connection and cooperation between the locking part and the moving slider, so that the moving slider, driven by the driving device, synchronously drives the locking part and the drawer body to perform reciprocating horizontal movement, thereby realizing the opening / closing action of the drawer body."

[0003] However, the above-mentioned patents and other related electric drawer devices all have the following problems: 1) The motor and the structure at both ends of the track of the electric device will often use the drawer's pull-out space, resulting in a distance in which the drawer cannot be fully opened, and the limited pull-out distance makes it impossible to fully open the drawer; 2) The opening inertia corresponding to the weight of the drawer itself and the weight of the placed items is large. Especially after the slider moves into place, the drawer continues to move in the opening direction due to inertia, causing impact to the electric device and collision noise, making it impossible for the drawer to stop smoothly and accurately.

[0004] In response to the above problems, those skilled in the art urgently need to solve the corresponding challenges: 1) how to design a distance compensation to allow the drawer to open fully; 2) how to eliminate the impact of the drawer on the electric device and ensure a smooth stop. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a linkage system suitable for the electric opening and closing of drawers, which has the characteristics of stable and reliable structure and opening distance compensation.

[0006] To achieve the above objectives, the present invention provides a linkage system for the electric opening and closing of a drawer, comprising an energy storage component and a transmission component. The energy storage component includes a fixed base, an energy storage slide that slides on the fixed base, and an energy storage spring disposed between the fixed base and the energy storage slide. The energy storage slide can be locked into or unlocked from a preset energy storage position on the fixed base. The transmission component includes a transmission slide, which is formed with a push portion constrained between the fixed base and the energy storage slide, and the transmission slide is configured with a driving mechanism. Its directional forward and backward moving drive assembly, wherein the pushing part pushes the energy storage slide as the transmission slide moves forward, and the fixed seat moves forward synchronously with the energy storage slide locked into the energy storage position until the transmission slide moves forward to the position, at which point the energy storage slide unlocks and exits the energy storage position, causing the energy storage spring to release its elastic potential energy to drive the fixed seat to continue moving forward; the pushing part pushes the fixed seat backward synchronously as the transmission slide moves backward, and at the same time, the energy storage slide first slides in the opposite direction to the fixed seat to lock into the energy storage position, and then moves backward synchronously with the fixed seat.

[0007] Furthermore, the energy storage component also includes an energy storage lock hinged to the energy storage slide. The fixed base has an energy storage groove formed in the energy storage position for the front end of the energy storage lock to engage with it. When the energy storage lock swings and engages into the energy storage groove, the energy storage slide locks itself into the energy storage position; conversely, when the front end of the energy storage lock swings out of the energy storage groove, the energy storage slide unlocks and exits the energy storage position.

[0008] Furthermore, it also includes a fixed contact portion arranged near the front end of the moving path of the transmission slide. As the energy storage slide moves forward, the rear end of the energy storage lock component abuts against the fixed contact portion, causing the front end of the energy storage lock component to swing away from the energy storage groove. Conversely, as the energy storage slide moves backward, the front end of the energy storage lock component abuts against the fixed contact portion, causing the front end of the energy storage lock component to swing and engage with the energy storage groove.

[0009] Furthermore, the transmission assembly also includes a transmission clamp hinged to the transmission slide, wherein when the transmission slide moves forward into position, the front end of the transmission clamp swings out and abuts against the tail of the fixed seat.

[0010] Furthermore, it also includes a guide pusher that is located near the front end of the transmission slide's moving path, wherein when the transmission slide moves forward into position, the transmission clamp just touches the guide pusher, causing the front end of the transmission clamp to swing out.

[0011] Furthermore, the energy storage component also includes an elastic push buckle that slides on the tail of the fixed seat and is limited and abutted against the front end of the transmission clip. When the transmission clip moves backward with the transmission slide and disengages from the guide push part, the elastic push buckle elastically pushes the front end of the transmission clip to swing back and avoid the fixed seat.

[0012] Furthermore, the drive assembly includes a guide rail for sliding connection with the transmission slide and a drive unit for driving the transmission slide to move directionally along the guide rail.

[0013] The present invention adopts the above-mentioned solution, and its beneficial effects are as follows: by unlocking and exiting the energy storage position using the energy storage slide, the energy storage spring releases elastic potential energy to drive the fixed seat to continue moving forward, thereby realizing that the final stage of the drawer opening is achieved by mechanical opening through the elastic potential energy released by the energy storage spring, so that the drawer can be fully opened and stop smoothly, eliminating the impact of inertia on the linkage system and improving the service life of the product. Attached Figure Description

[0014] Figure 1 This is a diagram illustrating the assembly of the furniture body and drawers.

[0015] Figure 2 This is a schematic diagram of the linkage system in a closed state.

[0016] Figure 3 This is a diagram showing the linkage system in the active state.

[0017] Figure 4 This is a schematic diagram of an energy storage component.

[0018] Figure 5 This is a schematic diagram of an explosion of an energy storage component.

[0019] Figure 6 A schematic diagram illustrating how to lock or unlock the energy storage slide into or out of the energy storage position.

[0020] Figure 7 This is a schematic diagram of the transmission assembly.

[0021] Figure 8 This is an exploded view of the transmission assembly.

[0022] Figure 9 This is a schematic diagram of the swing extension or swing retraction of the transmission clamp.

[0023] Figure 10 This is a schematic diagram of the jacking section pushing the energy storage slide forward.

[0024] Figure 11-14 This is a schematic diagram of working condition one.

[0025] Figure 15 This is a schematic diagram of working condition two.

[0026] Figure 16 This is a schematic diagram of the driving component.

[0027] Figure 17 This is a schematic diagram of the housing component.

[0028] Among them, 100-cabinet, 200-drawer, 1-energy storage component, 11-fixed base, 111-mounting slot, 112-energy storage slot, 12-energy storage slide, 13-energy storage spring, 14-energy storage lock, 15-elastic push buckle, 2-transmission component, 21-transmission slide, 211-push part, 212-transmission body, 213-transmission lower cover, 22-transmission clip, 3-drive component, 31-guide rail, 32-drive unit, 5-fixed contact part, 6-pull guide part, A-shell component. Implementation

[0029] To facilitate understanding of the present invention, a more complete description is given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0030] See appendix Figure 1-17 As shown in this embodiment, a linkage system suitable for the electric opening and closing of drawers is applied to a cabinet 100 and a drawer 200 that are slidably connected. The drawer 200 is slidably connected to the cabinet 100 via a guide rail 31 device. The guide rail 31 used can be a two-section rail or a three-section rail or other derivative guide rail 31 structure. Its structural principle belongs to the prior art and will not be elaborated here.

[0031] In this embodiment, the linkage system includes an energy storage component 1, a transmission component 2, and a drive device. The energy storage component 1 is installed on the drawer 200, the drive device is installed on the cabinet 100, and the transmission component 2 is movably installed on the cabinet 100. Thus, under the drive of the drive device and through the linkage between the transmission component 2 and the energy storage component 1, the electric opening and closing function of the drawer 200 is realized.

[0032] To facilitate the explanation of the linkage system, this embodiment uses the opening and closing direction of drawer 200 as the reference, defining the outward opening direction as the front and the inward closing direction as the rear.

[0033] In this embodiment, see Appendix Figure 4-6 As shown, the energy storage component 1 includes a fixed base 11, an energy storage slide 12 that slides on the fixed base 11, and an energy storage spring 13 disposed between the fixed base 11 and the energy storage slide 12. Specifically, the fixed base 11 is formed with a mounting groove 111 that extends parallel to the opening and closing direction of the drawer 200 and is used to accommodate the energy storage slide 12 and the energy storage spring 13. The energy storage slide 12 is movably fitted into the mounting groove 111 so that the energy storage slide 12 can slide back and forth along the mounting groove 111. The two ends of the energy storage spring 13 are respectively connected to the fixed base 11 and the energy storage slide 12 in the mounting groove 111.

[0034] In this embodiment, see Appendix Figure 6 As shown, the fixed base 11 is provided with an energy storage position at the front end of the mounting groove 111, and the energy storage slide 12 can be locked into or unlocked out of the energy storage position. When the energy storage slide 12 is locked into the energy storage position, the energy storage slide 12 and the fixed base 11 remain fixed, and the energy storage spring 13 is stretched to store energy. Conversely, when the energy storage slide 12 is unlocked out of the energy storage position, the energy storage slide 12 and the fixed base 11 are in a movable state, and the energy storage spring 13 retracts to release elastic potential energy so that the energy storage slide 12 and the fixed base 11 can move towards each other.

[0035] To enable the energy storage slide 12 to lock into place or unlock out, the energy storage component 1 in this embodiment further includes an energy storage lock 14 hinged to the energy storage slide 12. The energy storage lock 14 moves synchronously with the energy storage slide 12. Both sides of the energy storage lock 14 are formed with a laterally extending energy storage shaft that is hinged to the energy storage slide 12. Thus, under the drive of an external force, the energy storage lock 14 can swing up or down around the energy storage shaft. Secondly, the fixed base 11 has an energy storage groove 112 formed in the energy storage position for the front end of the energy storage lock 14 to engage. When the energy storage lock 14 is swung into the energy storage groove 112 by an external force (i.e., the energy storage lock 14 swings upward), the energy storage lock 14 and the fixed base 11 are engaged, thereby restricting the energy storage slide 12 from moving backward relative to the fixed base 11, thus completing the locking of the energy storage slide 12 into the energy storage position. Conversely, when the energy storage lock 14 is swung out of the energy storage groove 112 by an external force (i.e., the energy storage lock 14 swings downward), the energy storage lock 14 is disengaged from the fixed base 11, no longer restricting the energy storage slide 12 from moving backward relative to the fixed base 11, thus completing the unlocking and exiting of the energy storage slide 12 from the energy storage position.

[0036] In this embodiment, see Appendix Figure 6 As shown, it also includes a fixed contact 5 located near the front end of the moving path of the transmission slide 21. The energy storage lock 14 moves forward or backward synchronously with the energy storage slide 12 and engages with the fixed contact 5 accordingly. Specifically, taking the attached figure as an example, when the energy storage lock 14 moves forward with the energy storage slide 12, its rear end engages with the fixed contact 5, causing the energy storage lock 14 to rotate counterclockwise around the shaft, and causing the front end of the energy storage lock 14 to swing out of the energy storage groove 112, thus realizing the function of unlocking and exiting the energy storage position of the energy storage slide 12; conversely, when the energy storage lock 14 moves backward with the energy storage slide 12, its front end engages with the fixed contact 5, causing the energy storage lock 14 to rotate clockwise around the shaft, and causing the front end of the energy storage lock 14 to swing and engage in the energy storage groove 112, thus realizing the function of locking the energy storage slide 12 into the energy storage position.

[0037] In this embodiment, see Appendix Figure 7-9As shown, the transmission assembly 2 includes a transmission slide 21, wherein the transmission slide 21 is formed with a push portion 211 constrained between the fixed seat 11 and the energy storage slide 12, and the transmission slide 21 is equipped with a drive assembly 3 for driving its directional back-and-forth movement, that is, under the drive of the drive assembly 3, the transmission slide 21 and the push portion 211 move back and forth synchronously along the opening and closing direction of the drawer 200; secondly, the push portion 211 protrudes from the top of the transmission slide 21 and extends into the mounting groove 111 of the fixed seat 11, such that the push portion 211 is located between the fixed seat 11 and the energy storage slide 12, that is: see attached... Figure 10 As shown, when the pusher 211 moves forward with the transmission slide 21, it abuts against the tail of the energy storage slide 12; conversely, when the pusher 211 moves backward with the transmission slide 21, it abuts against the tail end face of the mounting groove 111 of the fixed seat 11.

[0038] To facilitate understanding of the linkage and cooperation between the energy storage component 1 and the transmission component 2, the following explanation is provided in conjunction with the specific working principle.

[0039] Operating Condition 1: See Appendix Figure 11-14 As shown, when drawer 200 needs to be opened, the energy storage slide 12 is locked into the energy storage position of the fixed base 11; firstly, as shown in the attached... Figure 11 As shown, the drive assembly 3 is activated, causing the transmission slide 21 to move forward in a directional direction. During this forward movement, the pushing part 211 pushes against the tail of the energy storage slide 12, thereby causing the energy storage slide 12, the fixed base 11, and the drawer 200 to move forward synchronously, thus gradually opening the drawer 200. Next, as shown in the attached... Figure 12 As shown, when the transmission slide 21 moves close to the front end of its movement path (about 15mm away from the front end of the movement path), the rear end of the energy storage lock 14, which moves forward synchronously with the energy storage slide 12, abuts against the fixed contact part 5. This causes the energy storage lock 14 to rotate counterclockwise, causing the front end of the energy storage lock 14 to swing away from the energy storage groove 112, thus unlocking the energy storage slide 12 and removing it from the energy storage position. (See attached diagram) Figure 13 As shown, the energy storage spring 13 is no longer restricted and releases elastic potential energy, causing the energy storage slide 12 and the fixed seat 11 to move towards each other (at this time, the energy storage slide 12 is restricted from moving backward by the pushing action of the pushing part 211, causing the fixed seat 11 to move forward relative to the energy storage slide 12). Thus, the elastic force of the energy storage spring 13 continues to drive the fixed seat 11 and the drawer 200 to move forward synchronously until as shown in the attached figure. Figure 15 The drawer 200 shown is fully open. While the energy storage spring 13 releases its elastic potential energy, the transmission slide 21 continues to move forward under the drive of the drive assembly 3 until it stops at the front end of the movement path.

[0040] In operating condition one, the final stage of drawer 200 opening relies on the elastic potential energy released by the energy storage spring 13 to achieve mechanical opening. This eliminates the problem of the drive assembly 3 or transmission assembly 2 occupying the space for pulling out drawer 200, allowing drawer 200 to continue moving forward and opening without the aid of drive assembly 3 and transmission slide 21. Simultaneously, during this mechanical opening process, the buffering effect of the energy storage spring 13 allows drawer 200 to gradually and smoothly stop, eliminating the impact on transmission assembly 2 and / or drive assembly 3 caused by the forward inertia of drawer 200, thereby improving service life and reducing the failure rate. Furthermore, without interference from the fixed seat 11 or energy storage slide 12, transmission slide 21 can be independently driven forward by drive assembly 3, without other load interference and with a small mass. Therefore, transmission slide 21 can stop smoothly without impacting drive assembly 3 or generating unnecessary impact noise.

[0041] Operating Condition 2: See Appendix Figure 15 As shown, when drawer 200 needs to be closed, the energy-storing slide 12 is in the energy-storing position where it is unlocked and withdrawn from the fixed seat 11. First, the drive assembly 3 is activated, driving the transmission slide 21 to move forward in a directional direction. The pushing part 211 pushes against the fixed seat 11 as the transmission slide 21 moves backward, thereby causing the fixed seat 11, drawer 200, and energy-storing slide 12 to move backward synchronously. Then, as the transmission slide 21 moves away from the front end of its movement path (approximately 45mm from the front end of the movement path), the rear end of the energy-storing lock 14, which moves backward synchronously with the energy-storing slide 12, abuts against the fixed contact part 5. Since the energy-storing slide 12 and the fixed seat 11 are in a movable state and have relative sliding clearance... At this time, the energy storage lock 14 will not swing upward due to the pushing action of the fixed contact 5. Instead, it will restrict the backward movement of the energy storage slide 12 and the energy storage lock 14, so that the energy storage slide 12 and the fixed seat 11 slide in opposite directions until the energy storage slide 12 reaches the energy storage position of the fixed seat 11. Then, the end face of the mounting groove 111 of the fixed seat 11 will push the energy storage slide 12 to continue to move backward, so that the front end of the energy storage lock 14 will be squeezed and abutted against the fixed contact 5 and swing upward and lock into the energy storage groove 112, thus realizing the locking of the energy storage slide 12 into the energy storage position. Finally, the fixed seat 11, the energy storage slide 12, the energy storage lock 14 and the drawer 200 will gradually close under the drive of the transmission slide 21.

[0042] In working condition two, during actual application, some transmission components 2 or drive components 3 may occupy the closing space of drawer 200. Therefore, when the transmission slide 21 moves to the rear end of its movement path, since there is still a certain amount of movement margin between the transmission slide 21 and the energy storage slide 12, the existing self-closing rebound device (whose structure and function are conventional technical means, and can be referred to in existing patents CN208988111U, CN211380358U, CN207270139U, etc.) can be used to drive the drawer 200 and the fixed seat 11 to continue to move backward synchronously until it is completely closed.

[0043] In this embodiment, due to the certain amount of movement space between the push-up part 211 fixed seat 11 and the energy storage slide 12, the drawer 200 can move slightly when fully opened. Therefore, the transmission assembly 2 also includes a transmission clamp 22 hinged to the transmission slide 21, which restricts the position of the fully opened drawer 200. The transmission clamp 22 has horizontally extending shafts at both ends that are hinged to the transmission slide 21, thus allowing the transmission clamp 22 to swing up or down around the shafts. To facilitate the assembly of the transmission clamp 22, the transmission slide 21 in this embodiment adopts a split assembly structure. Specifically, the transmission slide 21 is assembled from a transmission body 212 and a transmission lower cover 213. During actual assembly, the transmission clamp 22 is first placed in the inner cavity of the transmission body 212, and then the transmission lower cover 213 is placed over the transmission body 212, so that the transmission body 212 and the transmission lower cover 213 together clamp the shaft of the transmission clamp 22. Next, see the attached... Figure 9 As shown, the top of the transmission body 212 has an opening communicating with its inner cavity, so that when the transmission clamp 22 swings upward, its upper end can swing out to the outer periphery of the top of the transmission body 212; conversely, when the transmission clamp 22 swings downward, its lower end can swing down into the opening or inner cavity of the transmission body 212. This method facilitates production and assembly.

[0044] In this embodiment, a guide pusher 6 is also included, located near the front end of the moving path of the transmission slide 21. The transmission latch 22 moves forward synchronously with the energy storage slide 12 and engages with the fixed contact part 5. Specifically, in operating condition one, when the transmission slide 21 moves forward to its position, the transmission latch 22 contacts the guide pusher 6 at the front end of the moving path of the transmission slide 21, causing the transmission latch 22 to rotate clockwise and swing upward, so that the front end of the transmission latch 22 swings out and engages with the tail end of the fixed seat 11. Thus, the engagement between the transmission latch 22 and the fixed seat 11 restricts the backward movement of the fixed seat 11.

[0045] In this embodiment, see Appendix Figure 5As shown, the energy storage component 1 also includes an elastic push buckle 15 that slides on the tail of the fixed base 11 and is limited and abutted against the front end of the transmission clamp 22. The elastic push buckle 15 is vertically slidably embedded in a pre-set mounting cavity at the tail of the fixed base 11. When the front end of the transmission clamp 22 is limited and abutted against the elastic push buckle 15, the elastic push buckle 15 is compressed and stores energy by the pressing action of the transmission clamp 22. When the transmission clamp 22 moves backward with the transmission slide 21 and disengages from the guide push part 6, the transmission clamp 22 is no longer pressed by the guide push part 6, and the elastic push buckle 15 releases its elastic potential energy and elastically pushes the front end of the transmission clamp 22 to swing back and avoid the fixed base 11.

[0046] In this embodiment, see Appendix Figure 16 As shown, the drive assembly 3 includes a guide rail 31 for sliding connection with the transmission slide 21, and a drive unit 32 for driving the transmission slide 21 to move directionally along the guide rail 31. In this embodiment, the drive unit 32 includes a motor fixed on the cabinet 100, a drive wheel sleeved on the output shaft of the motor, a driven wheel rotatably disposed at the front end of the guide rail 31, and a transmission belt circulated around the drive wheel and the driven wheel. The transmission slide 21 is connected to the transmission belt. Thus, driven by the motor and relying on the drive wheel, the driven wheel and the transmission belt, the transmission slide 21 can move directionally back and forth along the guide rail 31.

[0047] To save space and optimize the structural design of the linkage system, please refer to the appendix. Figure 16 and 17 As shown, in this embodiment, the fixed contact 5 and the guide push 6 are formed on the housing component A at the front end of the guide rail 31, so that the housing can serve as both the fixed contact 5 and the guide push 6.

[0048] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any modifications or variations made by those skilled in the art, without departing from the scope of the present invention, using the disclosed technical content, are equivalent embodiments of the present invention. Therefore, all equivalent changes made based on the concept of the present invention without departing from the scope of the present invention should be covered within the protection scope of the present invention.

Claims

1. A linkage system suitable for the electric opening and closing of drawers, characterized in that: The device includes an energy storage component (1) and a transmission component (2). The energy storage component (1) includes a fixed base (11), an energy storage slide (12) sliding on the fixed base (11), and an energy storage spring (13) disposed between the fixed base (11) and the energy storage slide (12). The energy storage slide (12) can be locked into or unlocked from a preset energy storage position on the fixed base (11). The transmission component (2) includes a transmission slide (21). The transmission slide (21) is formed with a pusher (211) constrained between the fixed base (11) and the energy storage slide (12). The transmission slide (21) is equipped with a drive component (3) that drives it to move forward and backward in a directional manner. The pusher (211) pushes the energy storage slide (12) forward as the transmission slide (21) moves forward. The fixed base (11) moves forward synchronously with the energy storage slide (12) locked into the energy storage position until the transmission slide (21) moves forward into place. The energy storage slide (12) unlocks and exits the energy storage position, causing the energy storage spring (13) to release its elastic potential energy to drive the fixed seat (11) to continue moving forward; the pushing part (211) pushes the fixed seat (11) backward synchronously as the transmission slide (21) moves backward, and at the same time, the energy storage slide (12) first slides in the opposite direction to the fixed seat (11) to lock into the energy storage position, and then moves backward synchronously with the fixed seat (11); the energy storage assembly (1) also includes a hinged component. The energy storage lock (14) on the energy storage slide (12) has an energy storage groove (112) formed in the energy storage position for the front end of the energy storage lock (14) to engage. When the energy storage lock (14) swings and engages in the energy storage groove (112), the energy storage slide (12) locks itself into the energy storage position. Conversely, when the front end of the energy storage lock (14) swings out of the energy storage groove (112), the energy storage slide (12) unlocks and exits the energy storage position.

2. The linkage system for electric opening and closing of a drawer according to claim 1, characterized in that: It also includes a fixed contact (5) located near the front end of the moving path of the transmission slide (21). As the energy storage lock (14) moves forward, its rear end abuts against the fixed contact (5), causing the front end of the energy storage lock (14) to swing away from the energy storage groove (112). Conversely, as the energy storage slide (12) moves backward, its front end abuts against the fixed contact (5), causing the front end of the energy storage lock (14) to swing and lock into the energy storage groove (112).

3. The linkage system for electric opening and closing of a drawer according to claim 1, characterized in that: The transmission assembly (2) further includes a transmission clip (22) hinged to the transmission slide (21), wherein when the transmission slide (21) moves forward into position, the front end of the transmission clip (22) swings out and abuts against the tail of the fixed seat (11).

4. A linkage system for electric opening and closing of a drawer according to claim 3, characterized in that: It also includes a guide push part (6) arranged near the front end of the moving path of the transmission slide (21), wherein when the transmission slide (21) moves forward to the position, the transmission clamp (22) just touches the guide push part (6), causing the front end of the transmission clamp (22) to swing out.

5. A linkage system for electric opening and closing of a drawer according to claim 4, characterized in that: The energy storage component (1) further includes an elastic push buckle (15) that slides on the tail of the fixed seat (11) and is limited to the front end of the transmission clip (22). When the transmission clip (22) moves backward with the transmission slide (21) and disengages from the guide push part (6), the elastic push buckle (15) elastically pushes the front end of the transmission clip (22) to swing back and avoid the fixed seat (11).

6. A linkage system for electric opening and closing of a drawer according to claim 1, characterized in that: The drive assembly (3) includes a guide rail (31) for sliding connection with the transmission slide (21), and a drive unit (32) for driving the transmission slide (21) to move in a direction along the guide rail (31).

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