CN217117886U - Storage device - Google Patents

Abstract

The utility model discloses a storage device, wherein storage device makes the mount pad set up on energy storage mechanism through making one of the motor or the rack of drive drawer set up on the mount pad, when the drawer is opened, wheel and rack unhook, the mount pad is located the high position, when wheel and rack mesh, the mount pad is located the low position, combine position detection device to confirm the position of mount pad, when the low position, thereby control the motor to start and make the drawer self-closing, when needing to close the drawer, as long as to apply thrust to any position of front end of drawer, for pressing the button of the characteristic position, it is easier to operate, more suitable for the drugstore to use; meanwhile, when a worker in front of the drawer collides with the opened drawer, the drawer can automatically trigger the motor to close the drawer under the action of thrust, so that the rigid collision between the drawer and the worker is effectively avoided, and the safety is fully improved.

Description

Storage device

Technical Field

The utility model belongs to the technical field of medical equipment and specifically relates to storing device.

Background

The drawer is a box for holding articles, has a bottom and no cover, and can be drawn out and pushed in.

The conventional drawer is opened and closed by manual drawing, and in some automated pharmacies, an automated drawer is required to facilitate automatic medicine taking, and the conventional automated drawer adopts a driving mechanism to drive the drawer to be opened and closed automatically, such as the structure disclosed in the prior patent application nos. 2016214632228 and 2017103969788.

In the first structure driven by the motor, when the drawer needs to be closed after being opened, a trigger signal is generated by a button to start the motor to drive the drawer to be closed, so that the convenience of operation is not high, and the complexity of the control structure is increased by arranging the button; more importantly: in this structure, under the drawer open mode, if do not have the closure signal, the drawer is unable self-closing, if the staff in the drawer front bumps with the drawer carelessly at this moment, because lack the buffering between the two, causes the staff easily to be injured and the damage of drawer, and the security awaits improving.

In the structure with magnetic drive of second kind, this kind of structure though can have certain cushioning effect, avoids the safety problem that the staff caused with the unusual collision of the drawer of opening, however, this kind of structure is owing to adopt the magnetic force switching, and the impact force during drawer switch is great, easily makes the article of depositing in the drawer produce great vibrations, leads to article confusion and influences the security of article in the drawer, especially to the medicine cabinet of placing medicinal material, medicine, and the drawer of this kind of structure is hardly used.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a storage device for solving the above-mentioned problem that exists among the prior art.

The purpose of the utility model is realized through the following technical scheme:

the storage device comprises a drawer, a guide rail, a driving mechanism for driving the drawer to open and close and a controller, wherein the driving mechanism comprises a motor, a gear driven by the motor and a rack matched with the gear,

one of the motor and the rack is arranged on the drawer, the other one of the motor and the rack is arranged on a mounting seat, and the mounting seat is arranged on an energy storage mechanism with a fixed position;

when the drawer is in a fully opened state, the gear is positioned on the outer side of the inner end of the rack, the gear and the rack are separated, the energy storage mechanism enables the mounting seat to be at a second height higher than a first height, and the first height is the height of the mounting seat when the gear is meshed with the rack;

when the drawer in the fully open state is pushed inwards, the gear and the rack can be switched from a disengaged state to an engaged state;

the controller is connected with the position detection mechanism and controls the motor to drive the drawer to be closed when the position detection mechanism detects that the mounting seat is located at a first height.

Preferably, in the storage device, the drawer is fixed to the frame by drawer slide rails located at both sides of the drawer, the drawer slide rails include a fixed rail fixed to the frame and a telescopic rail which is telescopic relative to the fixed rail, and the telescopic rail is connected to the drawer.

Preferably, in the storage device, the drawer comprises a base plate, a weighing sensor is arranged on the base plate, and a storage box is arranged on the weighing sensor.

Preferably, in the storage device, the drawer comprises a base plate, a weighing sensor is arranged on the base plate, a limiting groove is formed in the weighing sensor, the extending direction of the limiting groove is consistent with the opening and closing direction of the drawer, and a storage box is arranged in the limiting groove.

Preferably, in the storage device, the storage box is provided with a protruding portion near an end portion, the base plate is provided with a supporting member, the supporting member is pivoted with a rotating member, a hook body matched with the protruding portion is formed on a side portion of the rotating member, and the rotating member normally keeps the hook body at a position where the hook body can hook the protruding portion under the action of gravity.

Preferably, in the storage device, a boss located below the hook body is formed on a side portion of the rotating member, a blocking portion corresponding to the boss is arranged on a frame where the drawer is located, the base plate is located at a completely closed position, and the boss abuts against the blocking portion to enable the hook body to be unhooked from the extending portion.

Preferably, among the storing device, the extension is two and is located the both sides position of drawer, every extension matches with a rotation piece, two the rotation piece pin joint waist type hole department that forms respectively on a riser, collude the body and stretch out outside the inboard of riser, the riser with the switching direction of drawer is perpendicular.

Preferably, in the storage device, the drawer is limited to a completely closed state by an automatic lock and a locking groove or hole.

Preferably, in the storage device, the motor is fixed on the mounting seat, the mounting seat is movably arranged on a group of guide posts, the energy storage mechanism is a spring which is sleeved on the guide posts and is positioned below the mounting seat, one end of the spring is connected with the mounting seat, and the other end of the spring is fixed.

Preferably, in the storage device, the rack is fixed at the bottom of the drawer, and the height of the top of a group of teeth of the tooth section at the inner end of the rack is linearly decreased from the inner end to the outer end.

The utility model discloses technical scheme's advantage mainly embodies:

according to the scheme, one of the motor or the rack is arranged on the mounting seat, the mounting seat is arranged on the energy storage mechanism, when the drawer is opened, the gear and the rack are unhooked, the mounting seat is located at a high position, when the gear and the rack are meshed, the mounting seat is located at a low position, the position of the mounting seat is determined by combining a position detection device, when the drawer is located at the low position, the motor is controlled to be started to enable the drawer to be automatically closed, when the drawer needs to be closed, only thrust is applied to any position of the front end of the drawer, and compared with the fact that a button at a characteristic position is pressed, the operation is easier, and the device is more suitable for pharmacy application; meanwhile, when a worker in front of the drawer collides with the opened drawer, the drawer can automatically trigger the motor to close the drawer under the action of thrust, so that the rigid collision between the drawer and the worker is effectively avoided, and the safety is fully improved.

The drawer structure of this scheme separates storing box and actuating mechanism, can conveniently take off the storing box to be convenient for change.

The drawer of this scheme takes the function of weighing, can know the weight of the article in the drawer in real time to when getting the material, can effectively know the weight of taking out article, especially be suitable for the storage and the use of article that need weigh such as medicinal material.

The drawer of this scheme has the spacing groove, can be effectively to the material box carry out a horizontal direction spacing, avoid its offset, set up the extension simultaneously on the storing box, combine the one with the body that colludes that the extension matches, can be fully with the storing box restriction on the material box, avoid the relative spacing groove of its drawer switching in-process to remove, guarantee the effective switching of drawer.

The drawer is provided with a limiting groove, and the drawer is provided with a hook body which is matched with the limiting groove and extends out of the limiting groove.

Two rotation pieces set up on same riser, and the structure is simplified, and the riser can also be injectd the position of storing box effectively simultaneously to make the extension on the storing box can correspond with colluding the body fast, be favorable to improving the availability factor.

Set up locking groove or hole and automatic locking cooperation, can lock the base plate in the closure state effectively to avoid the drawer to be pulled open, guarantee the security.

Drawings

Fig. 1 is a front end view of the storage device of the present invention;

fig. 2 is a perspective view of the storage device of the present invention (the energy storage mechanism is hidden in the figure);

FIG. 3 is a side view of the storage device of the present invention (side plate and guide rail are hidden from the drawing, and the hook body is in a state of limiting the extension, the left side is the outer end of the drawer, the right side is the inner end of the drawer)

Fig. 4 is a partially exploded view of the storage device of the present invention (the side plate and the energy storage mechanism are hidden);

figure 5 is a rear end view of the storage device of the present invention;

FIG. 6 is an enlarged view of area A of FIG. 3 (where the hook limits the protrusion);

fig. 7 is a partial schematic view of the protrusion and the blocking portion of the rotating member of the storage device of the present invention abutting against the hook body and the extension portion in a unhooking state.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are merely exemplary embodiments for applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention.

In the description of the embodiments, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

Referring to fig. 1-3, the storage device of the present invention includes a frame 100, a guide rail 200, a drawer 300, a driving mechanism 400, a position detecting mechanism 500, a mounting seat 600, an energy storing mechanism 700, and a controller (not shown).

As shown in fig. 1, the frame 100 at least includes two side plates 110, the two side plates 110 are connected by a bottom plate 120 at the bottom thereof, the inner sides of the two side plates 110 are respectively provided with one of the guide rails 200, the two guide rails 200 are disposed in parallel and at the same height, the specific structure of the guide rail 200 is known in the art, in one embodiment, the guide rail 200 may be a known drawer slide rail, such as the structure disclosed in the prior patent application No. 200820085449.2, a fixed rail 210 of the drawer slide rail is fixedly connected to the side plates 110, and an extensible rail 220 of the drawer slide rail, which is extensible relative to the fixed rail 210, is connected to the outer side surface of the drawer 300, so that the drawer 200 can be drawn out of the frame 100 for taking out.

Of course, in other embodiments, the guide rail 200 may be replaced by a general guide rail on which the drawer 300 is slidably disposed by a sliding member such as a slider. In this case, the drawer 300 may be positioned above the two guide rails, or the two guide rails may be positioned at both sides of the drawer 300.

The drawer 300 may be any of various conventional drawers known, such as a rectangular channel. In a preferred embodiment, as shown in fig. 4, the drawer 300 includes a base plate 310 connected to the two telescopic rails 220, the base plate 310 is perpendicular to the two side plates 110 and is close to the upper ends of the two side plates 110, a storage box 320 is detachably disposed on the base plate 310, the specific shape of the storage box 320 may be set according to different requirements, preferably, the storage box 320 is a rectangular slot, and the storage box 320 may be connected to the base plate 310 through a screw or may be connected to the base plate 310 through a clamping manner.

As shown in fig. 4 and 5, in some application scenarios, the weight of the articles in the storage box 320 needs to be known, so that in a preferred structure, an installation groove 311 is disposed on the base plate 310, a weighing sensor 330 is disposed in the installation groove 311, and a specific structure of the weighing sensor 330 is known in the art and is not described herein again. The top surface 331 of the load cell 330 protrudes above the top surface 312 of the base plate 310, the storage box 320 can be fixed in the screw hole 332 of the top surface of the load cell 330 by screws, and the load cell 330 is located at the bottom center of the storage box 320, thereby ensuring weighing accuracy. The weight of the articles in the storage box and the weight of the materials taken away from the storage box at every time can be known in real time by arranging the weighing sensor, so that the accurate control of the material taking amount is facilitated. Of course, the load cell 330 is not necessary, and the storage box may be directly disposed on the base plate 310.

In a more preferred embodiment, as shown in fig. 4, the storage box 320 is not directly fixed on the load cell 330, and in order to facilitate replacement of the storage box 320, a limit groove 340 is disposed on the load cell 330, the load cell 330 is located at a central position of a bottom of the limit groove 340, and a connecting hole 342 for connecting the load cell 330 is formed at a central position of a bottom plate of the limit groove 340. The extending direction of the limiting groove 340 is the same as the opening and closing direction of the drawer 300, the inner end 341 of the limiting groove 340 (here, "inner" is defined as the direction in which the drawer faces inward, and "outer" is defined as the direction in which the drawer faces outward) is flush with the inner end 113 of the side plate 110, and the outer end of the limiting groove 340 extends close to the outer end of the side plate 110 but keeps a certain distance. The storage box 320 is placed in the limiting groove 340, and at this time, the storage box 320 can be quickly removed from the limiting groove 340 for replacement by drawing the storage box 320 to slide along the limiting groove 340. Meanwhile, in order to facilitate the storage box 320 to enter the limiting groove 340, two ends of the limiting groove 340 are both flared openings.

However, in this structure, the storage box 320 is not fixed to the limiting groove 340, so that there is a risk that the storage box 320 slides relative to the limiting groove 340 during the movement of the drawer, and in order to avoid this risk, it is preferable that the storage box 320 is limited in the limiting groove 340 by a limiting structure.

The limiting mechanism may be implemented in various manners, for example, in one manner, a locking pin (not shown) driven by an air cylinder (not shown) is provided on the frame, a locking hole or groove (not shown) matched with the locking pin is provided on the storage box 320, and when the storage box 320 is located in the limiting groove 320, an air cylinder shaft of the air cylinder extends out to drive the locking pin to extend into the locking hole or groove on the storage box 320, so as to limit the sliding of the storage box 320. When the storage box 320 needs to be drawn out, the air cylinder drives the locking pin to be drawn out from the locking groove or the hole.

However, the locking pin is driven by the air cylinder, which requires a complicated structure, and in a more preferable mode, the locking pin can be realized by a passive structure, as shown in fig. 4, the storage box 320 has a protrusion 321 protruding downward at the outer end, the base plate 310 is provided with a supporting member 350, the supporting member 350 is pivoted with a rotating member 360, a hook 361 matching with the protrusion 321 is formed at the side of the rotating member 360, the rotating member 360 is a plate, the hook 361 is formed at the upper position of the side of the rotating member 360, and the hook 361 is arranged upward. As shown in fig. 5, the rotating member 361 normally keeps the hook body 361 at a position where it can hook the protruding portion 321 under the action of gravity, that is, the top 3611 of the hook body 361 is higher than the bottom 3211 of the protruding portion 321, and when the protruding portion 321 is located in the hook groove 3612 of the hook body 361, the hook body 361 can limit the protruding portion 321 so that the storage box 320 cannot slide relative to the limiting groove 340.

Only one of the protrusion 321 and the rotation member 360 may be provided. Preferably, as shown in fig. 1 and 4, the two extending portions 321 are located on two sides of the storage box 320, the two rotating members 360 are provided, one rotating member 361 corresponds to one extending portion 321, and the supporting member 350 where the two rotating members 360 are located may be two independent members. More preferably, two the support 350 that rotates 360 places is a riser, the riser with base plate 310 and the switching direction of drawer 300 is perpendicular, and, the riser distance the certain distance of front end of base plate 310, 310 still is provided with on riser and the base plate and encloses to close with them and form one and be located the cover body (not shown in the figure) in cuboid space in riser the place ahead, the top in cuboid space can be the open-ended and be convenient for accomodate article.

At this moment, the riser not only can be used for the installation rotate piece 360, simultaneously, the riser can be right the position of storing box 320 is injectd, when storing box 320 leaned on with the riser, can conveniently make protruding portion 321 on the storing box 320 is located collude groove 3612 of the body 361 colludes, realizes fixing a position fast.

As shown in fig. 1 and 6, two vertically extending waist-shaped holes 351 are formed on both sides of the vertical plate, the rotating member 360 is pivotally connected in the waist-shaped holes 351, an axis of a rotating shaft 370 pivotally connected to the vertical plate of the rotating member 360 is parallel to the base plate 310 and perpendicular to the opening and closing direction of the drawer 300, and the height of the rotating shaft 370 is equal to that of the hook 361 and is close to the hook 361.

At this time, since the hook 361 continuously limits the extension 321, when the storage box needs to be removed from the limiting groove 340, the extension 321 and the hook 361 are unhooked by only grabbing and lifting, and the storage box 320 cannot be removed from the limiting groove by pulling, so that the storage box 320 can be conveniently removed from the limiting groove 340 by pulling when the drawer is in a completely closed state.

Preferably, as shown in fig. 6 and 7, a boss 363 located below the hook 361 is formed at a side of each of the rotating members 360, a front end of the boss 363 extends out of a front end of the hook 361, the front end of the boss 363 is arc-shaped, and a blocking portion 111 corresponding to the boss 363 is disposed on the side plate 110 of the frame 100. As shown in fig. 7, when the base plate 310 is in the fully closed position, the protrusion 360 abuts against the front end surface of the blocking portion 111 to unhook the hook 361 from the protrusion 321, and at this time, the top of the hook 361 is lower than the bottom surface of the protrusion 321, so that the movement of the storage box 320 is not limited by the hook 361, and the storage box 320 can be drawn out from the limiting groove 340. When the drawer is opened, the boss 362 is not in contact with (separated from) the blocking portion 111, and the rotating member 360 rotates under the action of its own gravity until the top 3611 of the hook 361 is higher than the bottom surface 3211 of the extension 321, so that the hook 361 moving along with the base plate 310 can hook the extension on the storage box and drive the storage box to open together.

The driving mechanism 400 for driving the drawer 300 to open may be any of various known structures, such as the structure disclosed in application No. 201710396978.8, which uses the principle that like poles of magnets repel each other and unlike poles attract each other to open and close the drawer 300. Alternatively, the driving mechanism 400 may be a structure that uses a motor to cooperate with a transmission mechanism as disclosed in application numbers 201621463222.8, 201711180449.0, 201720247483.4, etc.

As shown in fig. 2 and 3, in a more preferred embodiment, the driving mechanism 400 includes a motor 410, a gear 420 driven by the motor to rotate, and a rack 430 engaged with the gear, one of the motor 410 and the rack 430 is disposed on the drawer 300, and the other is disposed on the mounting base 600. Preferably, the rack 430 is disposed on the drawer 300 at the bottom of the drawer 300, the extending direction of the rack is consistent with the opening and closing direction of the drawer, and the height of the tooth top of the group of teeth of the tooth section 431 at the inner end of the rack 430 is linearly decreased from the outer end to the inner end, that is, the tooth top of the group of teeth of the tooth section 431 forms an inclined surface, so that the gear 420 on the mounting seat at the second height can be smoothly switched from the disengaged state to the engaged state with the rack 430. The maximum opening and closing stroke of the drawer driven by the motor 410 can be controlled by a proximity switch and the like, which is a known technology and is not described in detail herein.

As shown in fig. 2 and 3, the motor 410 is fixed to the mounting base 600, the mount 600 is located at the bottom of the drawer 300 between the two side plates 110, the mounting base 600 is movably disposed on a set of guide posts 800, a cover plate 810 is disposed on the top of the set of guide posts 800 to prevent the mounting base 600 from being removed from the top of the guide posts 800, the number of the guide posts 800 is set according to the requirement, preferably 4, and is vertically fixed on the bottom plate 120 of the frame near the outer end of the frame, the energy storage mechanism 700 is a spring sleeved on the guide post 800 and located below the mounting base 600, one end of the spring is connected with the mounting seat, the other end of the spring is fixed on the bottom plate of the frame, of course, the spring may be replaced by other elastic materials, such as a metal spring, an elastic telescopic guide column disclosed in application No. 201720893283.6, and the like. Also, the guide post 800 is not required.

In the fully opened state of the drawer 300, the gear 420 is located outside the inner end of the rack, the two are separated, and the energy storage mechanism 700 enables the mounting seat 600 to be located at a second height higher than a first height, wherein the first height is the height of the mounting seat 600 when the gear 420 is meshed with the rack 430; when the drawer 300 in the fully open state is pushed inward, the gear 420 and the rack 330 are switched from the disengaged state to the engaged state.

The controller is connected to the position detection mechanism 500, the position detection mechanism 500 is configured to determine whether the mounting base 600 is at a first height, and when the position detection mechanism detects that the mounting base is at the first height, the controller controls the motor 410 to drive the drawer 300 to close.

When the drawer 300 is in a closed state, the rack 430 is engaged with the gear 420 and applies a downward force to the gear 420, the downward force is sequentially transmitted to the energy storage mechanism 700 by the motor 410 and the mounting seat 600, the energy storage mechanism 700 deforms to store energy, and meanwhile, the mounting seat 600 is located at a first height by a reaction force of the energy storage mechanism 700. When the motor 410 drives the drawer 300 to switch from the closed state to the fully open state, the motor 410 drives the gear 420 to rotate, the gear is meshed with different teeth of the rack 430, and the rack 430 moves outwards to drive the drawer 300 to open. When the inner end of the rack 430 is separated from the gear 420, the accumulated energy of the energy accumulating mechanism 700 is released and restored, and the mount 600 is lifted upwards by the reaction force of the energy accumulating mechanism, so that the mount 600 is lifted to the second height. When the drawer 300 needs to be closed, the drawer 300 is pushed inwards, the rack 430 is meshed with the gear 420, at this time, the rack 430 presses the mounting seat 600 downwards again, so that the position detection device 700 detects that the mounting seat 600 is at the first height, and the controller controls the motor 410 to drive the drawer 300 to be closed.

When the drawer 300 is in the fully closed state, in order to prevent the drawer 300 from being pulled out from the outside, as shown in fig. 2 and fig. 3, the drawer 300 is limited in the fully closed state by the automatic lock 900 and the locking groove or hole, specifically, a locking hole 314 is formed on the base plate 310 of the drawer 300, the locking hole 314 is close to the inner end of the base plate 310, the automatic lock 900 may be any known electronic lock, and the specific structure thereof is known technology and will not be described herein again. The automatic lock 900 is fixed on the mounting plate 130 at the inner end of the frame 100 and its locking tongue faces upward to the locking hole 314. Of course, in other embodiments, the automatic lock 900 may be fixed to the base plate 310, and the locking hole 314 may be disposed on a frame.

As shown in fig. 3, the mounting plate 130 is perpendicular to and vertically disposed on the two side plates 110, and has a protrusion 131, a top surface of the protrusion 131 extends to be close to a top surface of the base plate 310, and a notch 315 is formed on the base plate 310 to face the protrusion, so that the protrusion can define a final closed position of the base plate 310.

The position detecting mechanism 500 may be implemented in various known manners, for example, in one manner, the height of the mounting seat 600 may be determined by a distance measuring sensor, and in another manner, as shown in fig. 2, a trigger 510 is provided on the mounting seat, and a sensor (not shown) for sensing the trigger 510 is provided on the frame, which may be various known proximity switches, a correlation sensor, etc., and is provided on a mounting block 520 fixed to the frame 100. When the sensor senses the trigger 510, it is determined that the mounting seat 600 is located at a first height, the controller controls the motor to drive the drawer 300 to close, and when the sensor does not sense the trigger, it is determined that the mounting seat 600 is located at a second height, and the controller controls the motor to stop.

As will be briefly described below, the opening of the drawer 300 can be triggered by various available methods, for example, a trigger button is provided on the frame to trigger the motor to open, or a trigger method such as a touch screen or voice control is used to control the motor to start the operation of opening the drawer, the motor starts to open the drawer, and before the motor starts, the controller retracts the latch of the automatic lock to release the restriction on the base plate. And when the position detection mechanism cannot detect the mounting seat, controlling the motor to stop. When the opened drawer needs to be closed, inward pushing force is applied to the drawer, so that the rack and the gear on the drawer 300 are in a disengaged state and are switched to a meshed state, at the moment, the position detection mechanism 500 detects the mounting seat 600, the controller controls the motor to start and drive the drawer 300 to be closed, and after the drawer 300 is closed, the controller controls the bolt of the automatic lock to extend out to lock the base plate.

The utility model has a plurality of implementation modes, and all technical schemes formed by adopting equivalent transformation or equivalent transformation all fall within the protection scope of the utility model.

Claims (9)

1. Storing device, including actuating mechanism and the controller of frame, guide rail, drawer, drive drawer switching, actuating mechanism include the motor, by motor drive's gear and with gear complex rack, its characterized in that:

one of the motor and the rack is arranged on the drawer, the other one of the motor and the rack is arranged on a mounting seat, and the mounting seat is arranged on an energy storage mechanism with a fixed position;

when the drawer is in a fully opened state, the gear is positioned on the outer side of the inner end of the rack, the gear and the rack are separated, the energy storage mechanism enables the mounting seat to be at a second height higher than a first height, and the first height is the height of the mounting seat when the gear is meshed with the rack;

when the drawer in the fully open state is pushed inwards, the gear and the rack can be switched from a disengaged state to an engaged state;

the controller is connected with a position detection mechanism, and when the position detection mechanism detects that the mounting seat is at a first height, the motor is controlled to drive the drawer to be closed.

2. Storage device according to claim 1, characterized in that: the drawer comprises a base plate, a weighing sensor is arranged on the base plate, a storage box is arranged on the weighing sensor or a limiting groove with the extending direction consistent with the opening and closing direction of the drawer is arranged on the weighing sensor, and the storage box is arranged in the limiting groove.

3. Storage device according to claim 1, characterized in that: the drawer comprises a base plate, a limiting groove is formed in the base plate, the extending direction of the limiting groove is consistent with the opening and closing direction of the drawer, a storage box is arranged in the limiting groove, a protruding portion close to the end portion is arranged on the storage box, a supporting piece is arranged on the base plate, a rotating piece is pivoted on the supporting piece, a hook body matched with the protruding portion is formed on the side portion of the rotating piece, and the hook body is enabled to be kept at the position capable of hooking the protruding portion under the action of gravity under the normal state of the rotating piece.

4. A storage device as defined in claim 3, wherein: the limiting groove is arranged on a weighing sensor on the substrate.

5. A storage device as defined in claim 3, wherein: the side part of the rotating part is provided with a boss positioned below the hook body, a blocking part corresponding to the boss is arranged on a frame where the drawer is positioned, the base plate is positioned at a complete closing position, and the boss is abutted against the blocking part to ensure that the hook body is unhooked from the extension part.

6. Storage device according to claim 5, characterized in that: the extension is two and is located the both sides position of drawer, every extension matches with a rotation piece, two the waist type hole department that the rotation piece pin joint formed respectively on a riser, collude the body and stretch out outside the inboard of riser, the riser with the switching direction of drawer is perpendicular.

7. Storage device according to any one of claims 1 to 6, characterized in that: the drawer is retained in a fully closed position by an automatic lock and locking slot or hole engagement.

8. Storage device according to any one of claims 1 to 6, characterized in that: the motor is fixed on the mounting seat, the mounting seat is movably arranged on a group of guide pillars, the energy storage mechanism is a spring which is sleeved on the guide pillars and is positioned below the mounting seat, one end of the spring is connected with the mounting seat, and the other end of the spring is fixed.

9. Storage device according to any one of claims 1 to 6, characterized in that: the rack is fixed at the bottom of the drawer, and the tooth crest height of a group of teeth of the tooth section at the inner end of the rack is linearly decreased from the inner end to the outer end.

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