CN220109409U - Linkage system suitable for drawer is electronic to be opened and close - Google Patents

Abstract

The utility model discloses a linkage system suitable for electric opening and closing of a drawer, which comprises an energy storage assembly and a transmission assembly, wherein the energy storage assembly comprises a fixed seat, an energy storage sliding seat and an energy storage spring, and the energy storage sliding seat can be locked and clamped in or unlocked to withdraw from an energy storage position preset by the fixed seat; the transmission assembly comprises a transmission slide seat, the transmission slide seat is formed with a pushing part limited between a fixed seat and an energy storage slide seat, wherein the pushing part pushes the energy storage slide seat along with the forward movement of the transmission slide seat, and the fixed seat synchronously moves forward along with the energy storage slide seat locked in the energy storage position until the transmission slide seat moves forward to the right, the energy storage slide seat is unlocked to withdraw from the energy storage position, and the energy storage spring releases elastic potential energy to drive the fixed seat to move forward continuously; the pushing part pushes the fixed seat to synchronously move backwards along with the backward movement of the transmission sliding seat, and meanwhile, the energy storage sliding seat firstly slides reversely relative to the fixed seat to be locked and clamped into the energy storage position and then moves backwards synchronously with the fixed seat.

Description

Linkage system suitable for drawer is electronic to be opened and close

Technical Field

The utility model relates to the technical field of electric drawer structures, in particular to a linkage system suitable for electric opening and closing of drawers.

Background

At present, more and more products in household life have intelligent and electric functions, and particularly, electric devices are introduced to drawers in part of furniture products, so that the electric opening or closing actions of the drawers are realized. As disclosed in the chinese patent CN209846570U filed by the present inventor, an easy-to-disassemble electric drawer is disclosed, in which the latch portion is elastically embedded into the clamping groove to realize connection and cooperation between the latch portion and the movable slider, so that the movable slider is driven by the driving device to synchronously drive the latch portion and the drawer body to reciprocate and translate, and realize opening/closing actions of the drawer body.

However, drawer motors as described in the above patents and other phase derivatives have the following problems: 1) The structure of the two ends of the motor and the rail for installing the electric device can commonly use the pull-out space of the drawer, so that the drawer cannot be completely opened due to a certain distance, and the pull-out distance is limited, so that the drawer cannot be completely opened; 2) The opening inertia corresponding to the self weight of the drawer and the weight of the placed articles is large, and particularly after the sliding block moves in place, the drawer continues to move towards the opening direction due to the influence of the inertia, so that the impact and the collision noise to the impact electric device are caused, and the drawer cannot be stopped stably and accurately.

In view of the above problems, those skilled in the art are urgent to solve the corresponding problems: 1) How to design a distance compensation to enable the drawer to be completely opened; 2) How to eliminate the impact of the drawer on the electric device and stop smoothly.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, provides a linkage system suitable for the electric opening and closing of a drawer, and has the characteristics of stable and reliable structure, opening distance compensation and the like.

In order to achieve the above purpose, the linkage system suitable for the electric opening and closing of the drawer provided by the utility model comprises an energy storage assembly and a transmission assembly, wherein the energy storage assembly comprises a fixed seat, an energy storage sliding seat sliding on the fixed seat and an energy storage spring arranged between the fixed seat and the energy storage sliding seat, and the energy storage sliding seat can be locked and clamped into or unlocked from an energy storage position preset by the fixed seat; the transmission assembly comprises a transmission slide seat, the transmission slide seat is formed with a pushing part limited between a fixed seat and an energy storage slide seat, and the transmission slide seat is provided with a driving assembly for driving the transmission slide seat to move forwards and backwards in a directional manner, wherein the pushing part pushes the energy storage slide seat along with the forward movement of the transmission slide seat, and the fixed seat moves forwards synchronously along with the energy storage slide seat locked in the energy storage position until the transmission slide seat moves forwards to the position, and the energy storage slide seat is unlocked to withdraw from the energy storage position, so that the energy storage spring releases elastic potential energy to drive the fixed seat to move forwards continuously; the pushing part pushes the fixed seat to synchronously move backwards along with the backward movement of the transmission sliding seat, and meanwhile, the energy storage sliding seat firstly slides reversely relative to the fixed seat to be locked and clamped into the energy storage position and then moves backwards synchronously with the fixed seat.

Further, the energy storage assembly further comprises an energy storage lock piece hinged to the energy storage sliding seat, and an energy storage groove for the front end part of the energy storage lock piece to be clamped is formed in the energy storage position of the fixing seat, wherein when the energy storage lock piece swings and is clamped into the energy storage groove, the energy storage sliding seat is locked and clamped into the energy storage position; and on the contrary, when the front end part of the energy storage lock piece swings to withdraw from the energy storage groove, the energy storage sliding seat is unlocked to withdraw from the energy storage position.

The energy storage lock piece moves forward along with the energy storage slide seat to enable the rear end portion of the energy storage lock piece to be in contact with the fixed contact portion, so that the front end portion of the energy storage lock piece swings to be separated from the energy storage groove; otherwise, the front end part of the energy storage lock piece is abutted against the fixed contact part along with the backward movement of the energy storage sliding seat, so that the front end part of the energy storage lock piece is clamped into the energy storage groove in a swinging way.

Further, the transmission assembly further comprises a transmission clamping piece hinged to the transmission sliding seat, wherein when the transmission sliding seat moves forward to the right position, the front end part of the transmission clamping piece swings and stretches out and is in limit collision with the tail part of the fixing seat.

The driving clamping piece is contacted with the guiding and pushing part exactly when the driving sliding seat moves forward to the position, so that the front end part of the driving clamping piece swings and stretches out.

Further, the energy storage assembly further comprises an elastic push button which slides at the tail of the fixing seat and is used for limiting and abutting the front end part of the transmission clamping piece, wherein when the transmission clamping piece moves backwards along with the transmission sliding seat to separate from the guide pushing part, the front end part of the transmission clamping piece is elastically pushed by the elastic push button to swing and retract and avoid the fixing seat.

Further, the driving assembly comprises a guide rail for sliding connection of the transmission sliding seat, and a driving unit for driving the transmission sliding seat to move along the guide rail in an oriented manner.

The utility model adopts the scheme, and has the beneficial effects that: the energy storage sliding seat is utilized to unlock and withdraw from the energy storage position, so that the energy storage spring releases elastic potential energy to drive the fixing seat to move forwards continuously, and the mechanical opening is realized by the elastic potential energy released by the energy storage spring in the final stage of opening the drawer, so that the drawer can be completely opened and stopped stably, the impact influence of inertia on a linkage system is eliminated, and the service life of a product is prolonged.

Drawings

Fig. 1 is an assembled schematic view of a furniture body and a drawer.

Fig. 2 is a schematic view of the linkage system in a closed state.

Fig. 3 is a schematic view of the linkage system in an open state.

Fig. 4 is a schematic diagram of an energy storage assembly.

Fig. 5 is an exploded view of the energy storage assembly.

Fig. 6 is a schematic diagram of the energy storage slide seat locking and clamping in or unlocking out of the energy storage position.

Fig. 7 is a schematic view of a transmission assembly.

Fig. 8 is an exploded view of the transmission assembly.

Fig. 9 is a schematic view of the swing extension or swing retraction of the drive dog.

Fig. 10 is a schematic view of the pushing portion pushing the energy storage slide to move forward.

Fig. 11-14 are schematic diagrams of condition one.

FIG. 15 is a schematic diagram of a second condition.

Fig. 16 is a schematic view of a drive assembly.

Fig. 17 is a schematic view of the housing components.

The device comprises a 100-cabinet body, a 200-drawer, a 1-energy storage component, a 11-fixed seat, a 111-mounting groove, a 112-energy storage groove, a 12-energy storage sliding seat, a 13-energy storage spring, a 14-energy storage lock piece, a 15-elastic push button, a 2-transmission component, a 21-transmission sliding seat, a 211-pushing part, a 212-transmission body, a 213-transmission lower cover, a 22-transmission clamping piece, a 3-driving component, a 31-guide rail, a 32-driving unit, a 5-fixed contact part, a 6-guide push part and an A-shell component.

Description of the embodiments

In order that the utility model may be understood more fully, the utility model will be described with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1-17, in this embodiment, a linkage system suitable for electric opening and closing of a drawer is applied to a cabinet body 100 and a drawer 200 which are connected in a sliding manner, wherein the drawer 200 is connected to the cabinet body 100 in a sliding manner through a guide rail 31 device, the adopted guide rail 31 can adopt a two-section rail or three-section rail or other derivative guide rail 31 structure, and the structural principle thereof belongs to the prior art, and is not described herein again.

In this embodiment, the linkage system includes an energy storage component 1, a transmission component 2 and a driving device, where the energy storage component 1 is correspondingly installed on the drawer 200, the driving device is installed on the cabinet body 100, and the transmission component 2 is relatively movably installed on the cabinet body 100, so that under the driving of the driving device, the electric opening and closing function of the drawer 200 is realized through the linkage cooperation between the transmission component 2 and the energy storage component 1.

For convenience of explanation of the linkage system, the present embodiment defines an outward opening direction as a front and an inward closing direction as a rear with reference to the opening and closing direction of the drawer 200.

In this embodiment, referring to fig. 4-6, the energy storage assembly 1 includes a fixing seat 11, an energy storage sliding seat 12 sliding on the fixing seat 11, and an energy storage spring 13 disposed between the energy storage sliding seats 12 of the fixing seat 11, specifically, the fixing seat 11 is formed with a mounting groove 111 extending along a direction parallel to the opening and closing direction of the drawer 200 and used for accommodating the energy storage sliding seat 12 and the energy storage spring 13, the energy storage sliding seat 12 is movably embedded in the mounting groove 111 to realize that the energy storage sliding seat 12 slides back and forth along the mounting groove 111, and two ends of the energy storage spring 13 are respectively connected with the fixing seat 11 and the energy storage sliding seat 12 in the mounting groove 111.

In this embodiment, referring to fig. 6, the fixing seat 11 is correspondingly provided with an energy storage position near the front end of the mounting groove 111, and the energy storage slide seat 12 can be locked and blocked or unlocked to be withdrawn from the energy storage position, wherein when the energy storage slide seat 12 is locked and blocked into the energy storage position, the energy storage slide seat 12 and the fixing seat 11 are kept fixed, and meanwhile, the energy storage spring 13 is lengthened to store energy; on the contrary, when the energy storage slide seat 12 is unlocked and withdrawn from the energy storage position, the energy storage slide seat 12 and the fixed seat 11 are in a movable state, and meanwhile, the energy storage spring 13 is retracted to release elastic potential energy so that the energy storage slide seat 12 and the fixed seat 11 can move in opposite directions.

In order to realize the locking and locking or unlocking and withdrawing functions of the energy storage sliding seat 12, the energy storage assembly 1 of the embodiment further comprises an energy storage lock piece 14 hinged on the energy storage sliding seat 12, wherein the energy storage lock piece 14 moves synchronously with the energy storage sliding seat 12, and energy storage shaft bodies which transversely extend and are hinged with the energy storage sliding seat 12 are formed on two sides of the energy storage lock piece 14, so that the energy storage lock piece 14 can correspondingly swing up or down around the energy storage shaft bodies under the driving of external acting force. Secondly, the fixed seat 11 is formed with an energy storage groove 112 for clamping the front end part of the energy storage lock piece 14 in the energy storage position, wherein when the energy storage lock piece 14 swings and clamps into the energy storage groove 112 by means of external acting force (namely, the energy storage lock piece 14 swings upwards), the energy storage lock piece 14 is clamped and matched with the fixed seat 11, so that the energy storage sliding seat 12 is limited to move backwards relative to the fixed seat 11, and the locking and clamping of the energy storage sliding seat 12 into the energy storage position are completed; on the contrary, when the energy storage lock 14 swings out of the energy storage groove 112 by means of external force (i.e. the energy storage lock 14 swings down), the energy storage lock 14 is unhooked from the fixing seat 11, and the energy storage slide seat 12 is not limited to move backwards relative to the fixing seat 11, so that the energy storage slide seat 12 is unlocked and is withdrawn from the energy storage position.

In this embodiment, referring to fig. 6, the energy storage lock 14 further includes a contact portion 5 adjacent to the front end of the moving path of the driving carriage 21, and correspondingly contacts and cooperates with the contact portion 5 as the energy storage carriage 12 moves forward or backward synchronously. Specifically, taking the drawing as an example, the energy storage lock member 14 moves forward along with the energy storage sliding seat 12 to enable the rear end portion of the energy storage lock member to be in contact with the fixed contact portion 5, so that the energy storage lock member 14 rotates anticlockwise around the shaft body, and the front end portion of the energy storage lock member 14 swings to withdraw from the energy storage groove 112, thereby realizing the function of unlocking the energy storage sliding seat 12 and withdrawing from the energy storage position; otherwise, the front end of the energy storage lock 14 is abutted against the fixed contact part 5 along with the backward movement of the energy storage slide seat 12, so that the energy storage lock 14 rotates clockwise around the shaft body, and the front end of the energy storage lock 14 swings and is clamped into the energy storage groove 112, thereby realizing the locking and clamping of the energy storage slide seat 12 into an energy storage position.

In this embodiment, referring to fig. 7-9, the transmission assembly 2 includes a transmission slide 21, wherein the transmission slide 21 is formed with a pushing portion 211 limited between the fixing seat 11 and the energy storage slide 12, and the transmission slide 21 is configured with a driving assembly 3 for driving the transmission slide 21 to move forward and backward in an orientation, that is, the transmission slide 21 and the pushing portion 211 synchronously move forward and backward along the opening and closing direction of the drawer 200 under the driving of the driving assembly 3; secondly, the pushing portion 211 protrudes from the top of the transmission sliding seat 21 and extends into the mounting groove 111 of the fixing seat 11, so that the pushing portion 211 is between the fixing seat 11 and the energy storage sliding seat 12, namely: referring to fig. 10, when the pushing portion 211 moves forward along with the driving carriage 21, it abuts against the tail portion of the energy storage carriage 12; on the contrary, when the pushing portion 211 moves backward along with the driving sliding seat 21, it is abutted against the tail end of the mounting slot 111 of the fixing seat 11.

In order to facilitate understanding of the above-described linkage coordination relationship between the energy storage assembly 1 and the transmission assembly 2, explanation will be made below in connection with a specific working principle.

Working condition one: referring to fig. 11-14, when the drawer 200 needs to be opened, the energy storage slide seat 12 is locked and clamped into the energy storage position of the fixing seat 11; first, as shown in fig. 11, the driving assembly 3 is started and drives the transmission slide 21 to move forward in a fixed direction, and the pushing portion 211 pushes the tail portion of the energy storage slide 12 during the forward movement of the transmission slide 21, so as to drive the energy storage slide 12, the fixing seat 11 and the drawer 200 to move forward synchronously, thereby realizing gradual opening of the drawer 200. Next, as shown in fig. 12, when the driving slide 21 moves close to the front end of the moving path (the driving slide 21 is about 15mm away from the front end of the moving path), the rear end of the energy storage lock 14 moving forward synchronously with the energy storage slide 12 abuts against the fixed contact 5, so that the energy storage lock 14 rotates counterclockwise to swing the front end of the energy storage lock 14 away from the energy storage slot 112, the energy storage slide 12 is unlocked and withdrawn from the energy storage position, as shown in fig. 13, the energy storage spring 13 is not limited any more, and elastic potential energy is released to enable the energy storage slide 12 and the fixed seat 11 to move towards each other (at this time, the energy storage slide 12 is limited to move backward by the pushing action of the pushing part 211, so that the fixed seat 11 moves forward relative to the energy storage slide 12), and the fixed seat 11 and the drawer 200 are driven to move forward synchronously by the elastic force of the energy storage spring 13 until the drawer 200 is completely opened as shown in fig. 15. While the energy storage spring 13 releases the elastic potential energy, the transmission slide 21 is driven by the driving component 3 to move forward until stopping at the front end of the moving path.

In the first working condition, the last stage of the drawer 200 opening is realized by means of the elastic potential energy released by the energy storage spring 13, so that the problem that the driving assembly 3 or the transmission assembly 2 occupies the pull-out space of the drawer 200 is solved, and the drawer 200 is opened without the help of the driving assembly 3 and the transmission sliding seat 21; meanwhile, in the mechanical opening process, the drawer 200 can be stopped gradually and stably by utilizing the buffer function of the energy storage spring 13, so that the impact on the transmission assembly 2 and/or the driving assembly 3 caused by the forward movement inertia of the drawer 200 is eliminated, the service life is prolonged, and the failure rate is reduced. In addition, the driving slide seat 21 can be independently driven to move forward by the driving component 3 without interference of the fixing seat 11 or the energy storage slide seat 12, and has no interference of other loads and small mass, so that the driving slide seat 21 can be stopped stably, and no impact and unnecessary impact noise are generated on the driving component 3.

Working condition II: referring to fig. 15, when the drawer 200 needs to be closed, the energy storage slide seat 12 is unlocked to withdraw from the energy storage position of the fixing seat 11; firstly, starting the driving assembly 3 and driving the transmission sliding seat 21 to move forwards in a directional manner, and pushing the fixed seat 11 by the pushing part 211 during the backward movement of the transmission sliding seat 21, so as to drive the fixed seat 11, the drawer 200 and the energy storage sliding seat 12 to move backwards synchronously; immediately, when the transmission sliding seat 21 moves away from the front end of the moving path (the position of the transmission sliding seat 21, which is about 45mm away from the front end of the moving path), the rear end of the energy storage lock piece 14 which moves backwards synchronously along with the energy storage sliding seat 12 is in contact with the fixed contact part 5, and the energy storage sliding seat 12 and the fixed contact part 5 are pushed by the energy storage lock piece 14 to have opposite sliding allowance, so that the energy storage sliding seat 12 and the fixed contact part 14 cannot swing upwards, but have the effect of limiting the backward movement of the energy storage sliding seat 12 and the energy storage lock piece 14, the energy storage sliding seat 12 and the fixed contact part 11 slide reversely until the relative sliding of the energy storage sliding seat 12 reaches the energy storage position of the fixed contact part 11, and the end face of the mounting groove 111 of the fixed contact part 11 pushes the energy storage sliding seat 12 to continue to move backwards, so that the front end of the energy storage lock piece 14 is in extrusion contact with the fixed contact part 5 to swing upwards and clamped into the energy storage groove 112, and the locking clamping of the energy storage sliding seat 12 into the energy storage position is realized; finally, the fixing seat 11, the energy storage sliding seat 12, the energy storage lock piece 14 and the drawer 200 are gradually closed under the driving of the transmission sliding seat 21.

In the second working condition, in the practical application process, there is a situation that part of the transmission assembly 2 or the driving assembly 3 occupies the closing space of the drawer 200, so when the transmission sliding seat 21 moves to the rear end of the moving path, a certain movement allowance exists between the transmission sliding seat 21 and the energy storage sliding seat 12, and at this time, the drawer 200 and the fixed seat 11 can be driven to synchronously and continuously move backwards by means of the existing self-closing rebound device (the structural function of the self-closing rebound device belongs to the conventional technical means, and can refer to the existing patent CN208988111U, CN211380358U, CN207270139U and the like) until the self-closing rebound device is completely closed.

In this embodiment, since a certain movement space exists between the fixing seat 11 of the pushing portion 211 and the energy storage sliding seat 12, the drawer 200 can slightly move when being fully opened, and for this purpose, the transmission assembly 2 further includes a transmission clamping member 22 hinged on the transmission sliding seat 21, and the position of the fully opened drawer 200 is limited by using the transmission clamping member 22. The transmission clamping piece 22 is provided with shaft bodies which extend transversely and are hinged with the transmission sliding seat 21 at two ends, so that the transmission clamping piece 22 swings up or down around the shaft bodies. In order to facilitate assembly of the transmission clamping member 22, the transmission sliding seat 21 of the present embodiment adopts a split assembly structure, specifically, the transmission sliding seat 21 is formed by assembling a transmission body 212 and a transmission lower cover 213, during actual assembly, the transmission clamping member 22 is placed in an inner cavity of the transmission body 212, and then the transmission lower cover 213 is covered on the transmission body 212, so that the transmission body 212 and the transmission lower cover 213 jointly move to clamp a shaft body of the transmission clamping member 22. Next, referring to fig. 9, the top of the transmission body 212 is provided with an opening communicating with the inner cavity thereof, so that the upper end of the transmission clamping member 22 can swing and extend to the periphery of the top of the transmission body 212 when the transmission clamping member swings upwards; conversely, when the driving clip 22 swings down, the lower end portion thereof can swing down into the opening or the inner cavity of the driving body 212. In this way, the production and assembly are facilitated.

In this embodiment, the device further includes a guiding and pushing portion 6 disposed near the front end of the moving path of the driving sliding seat 21, and the driving clamping member 22 correspondingly contacts and cooperates with the fixed contact portion 5 along with the synchronous advancing of the energy storage sliding seat 12, specifically, in the first working condition, when the driving sliding seat 21 moves forward, the driving clamping member 22 contacts with the guiding and pushing portion 6 just at the front end of the moving path of the driving sliding seat 21, so that the driving clamping member 22 swings clockwise and swings upwards, and the front end of the driving clamping member 22 swings and extends out and is in limited interference with the tail portion of the fixed seat 11. Therefore, the transmission clamping piece 22 and the fixed seat 11 are used for preventing the fixed seat 11 from moving backwards.

In this embodiment, referring to fig. 5, the energy storage assembly 1 further includes an elastic push button 15 sliding at the tail of the fixing seat 11 and allowing the front end of the transmission clamping member 22 to abut against the front end, where the elastic push button 15 is vertically slidably embedded in a preset installation cavity at the tail of the fixing seat 11. When the front end part of the transmission clamping piece 22 is in limit conflict with the elastic push buckle 15, the elastic push buckle 15 is compressed and stored energy under the pushing action of the transmission clamping piece 22; when the transmission clamping piece 22 moves backwards along with the transmission sliding seat 21 and is separated from the guide pushing part 6, the transmission clamping piece 22 is not pushed by the guide pushing part 6 any more, the elastic push buckle 15 releases elastic potential energy, and the front end part of the transmission clamping piece 22 is elastically pushed to swing and retract and avoid the fixed seat 11.

In this embodiment, referring to fig. 16, the driving assembly 3 includes a guide rail 31 for slidably connecting the driving slide 21, and a driving unit 32 for driving the driving slide 21 to move along the guide rail 31 in an oriented manner, where the driving unit 32 of this embodiment includes a motor fixed on the cabinet 100, a driving wheel sleeved on an output shaft of the motor, a driven wheel rotatably disposed at a front end of the guide rail 31, and a conveyor belt circularly wound on the driving wheel and the driven wheel, and the driving slide 21 is connected to the conveyor belt, so that the driving slide 21 is driven by the motor and moves forward and backward along the guide rail 31 in an oriented manner depending on the driving wheel, the driven wheel, and the conveyor belt.

In order to save space and optimize the structural design of the linkage system, referring to fig. 16 and 17, the fixed contact portion 5 and the guiding and pushing portion 6 of the present embodiment are correspondingly formed on the housing component a at the front end of the guide rail 31, so that the housing functions as both the fixed contact portion 5 and the guiding and pushing portion 6.

The above-described embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the present utility model in any way. Any person skilled in the art, using the disclosure above, may make many more possible variations and modifications of the technical solution of the present utility model, or make many more modifications of the equivalent embodiments of the present utility model without departing from the scope of the technical solution of the present utility model. Therefore, all equivalent changes made according to the inventive concept are covered by the protection scope of the utility model without departing from the technical scheme of the utility model.

Claims (7)

1. The utility model provides a linkage system suitable for drawer is electronic to be opened and close which characterized in that: the energy storage device comprises an energy storage assembly (1) and a transmission assembly (2), wherein the energy storage assembly (1) comprises a fixed seat (11), an energy storage sliding seat (12) sliding on the fixed seat (11) and an energy storage spring (13) arranged between the fixed seat (11) and the energy storage sliding seat (12), and the energy storage sliding seat (12) can be locked and clamped into or unlocked from an energy storage position preset by the fixed seat (11); the transmission assembly (2) comprises a transmission sliding seat (21), a pushing part (211) limited between the fixed seat (11) and the energy storage sliding seat (12) is formed on the transmission sliding seat (21), the transmission sliding seat (21) is provided with a driving assembly (3) for driving the transmission sliding seat (21) to move forwards and backwards in a directional manner, the pushing part (211) pushes the energy storage sliding seat (12) along with the forward movement of the transmission sliding seat (21), the fixed seat (11) synchronously moves forwards along with the energy storage sliding seat (12) locked and clamped into the energy storage position until the energy storage sliding seat (12) is unlocked to withdraw from the energy storage position after the transmission sliding seat (21) is moved forwards and positioned, and the energy storage spring (13) is enabled to release elastic potential energy to drive the fixed seat (11) to move forwards continuously; the pushing part (211) moves backwards along with the transmission sliding seat (21) to push the fixed seat (11) to synchronously move backwards, and meanwhile, the energy storage sliding seat (12) slides reversely relative to the fixed seat (11) to be locked and clamped into the energy storage position, and then moves backwards synchronously with the fixed seat (11).

2. A linkage system for the electric opening and closing of drawers as claimed in claim 1, wherein: the energy storage assembly (1) further comprises an energy storage lock (14) hinged to the energy storage sliding seat (12), an energy storage groove (112) for the front end part of the energy storage lock (14) to be clamped is formed in the energy storage position of the fixing seat (11), and when the energy storage lock (14) swings and is clamped into the energy storage groove (112), the energy storage sliding seat (12) is locked and clamped 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 sliding seat (12) is unlocked and is withdrawn from the energy storage position.

3. A linkage system for the electric opening and closing of drawers as claimed in claim 2, wherein: the energy storage lock (14) moves forward along with the energy storage slide (12) to enable the rear end of the energy storage lock to be in contact with the fixed contact part (5), so that the front end of the energy storage lock (14) swings to be separated from the energy storage groove (112); conversely, the front end of the energy storage lock (14) is abutted against the fixed contact part (5) along with the backward movement of the energy storage sliding seat (12), so that the front end of the energy storage lock (14) is clamped into the energy storage groove (112) in a swinging way.

4. A linkage system for the electric opening and closing of drawers as claimed in claim 1, wherein: the transmission assembly (2) further comprises a transmission clamping piece (22) hinged to the transmission sliding seat (21), wherein when the transmission sliding seat (21) moves forward to the position, the front end part of the transmission clamping piece (22) swings and stretches out and is in limit collision with the tail part of the fixing seat (11).

5. A linkage system for electrically opening and closing a drawer as set forth in claim 4, wherein: the device also comprises a guide pushing part (6) which is arranged near the front end of the moving path of the transmission sliding seat (21), wherein when the transmission sliding seat (21) moves forward to the proper position, the transmission clamping piece (22) just touches the guide pushing part (6), so that the front end part of the transmission clamping piece (22) swings and stretches out.

6. A linkage system for electrically opening and closing a drawer as set forth in claim 5, wherein: the energy storage assembly (1) further comprises an elastic push button (15) which slides at the tail of the fixed seat (11) and is used for limiting and abutting against the front end part of the transmission clamping piece (22), wherein when the transmission clamping piece (22) moves backwards along with the transmission sliding seat (21) and is separated from the guide pushing part (6), the front end part of the transmission clamping piece (22) is elastically pushed by the elastic push button (15) to swing and retract and avoid the fixed seat (11).

7. A linkage system for the electric opening and closing of drawers as claimed in claim 1, wherein: the driving assembly (3) comprises a guide rail (31) for sliding connection of the transmission sliding seat (21) and a driving unit (32) for driving the transmission sliding seat (21) to move along the guide rail (31) in an oriented way.