CN209932021U - Anti-tipping bucket cabinet - Google Patents

Abstract

The utility model discloses an anti-tipping bucket cabinet, which comprises a cabinet body, a drawer and a supporting leg driving assembly, wherein the supporting leg driving assembly is used for driving the supporting leg to act; a connecting rod limiting device and an elastic lug are arranged on any layer of drawer, and when the drawer is opened, the connecting rod limiting device on any layer of drawer can drive the supporting legs to extend out of the cabinet body; when the drawer is closed, the drawer which is closed finally controls the retraction of the supporting legs through the elastic convex blocks. The anti-toppling bucket cabinet realizes that the supporting legs can be controlled to be drawn out by any layer of drawer, and the drawing distance of the supporting legs is controlled by the drawer with the largest drawing distance; when the drawer is closed, the supporting legs are retracted due to the flexibility of the drawer which is closed at last through the elastic convex blocks.

Description

Anti-tipping bucket cabinet

Technical Field

The utility model relates to a drawer type cabinet of fighting especially relates to a prevent empting cabinet of fighting with prevent empting function.

Background

With the continuous improvement of living standard and the full utilization of space, more and more furniture products such as drawer type drawers and cabinets or high-rise wardrobes with drawers enter common families. Many families have been specially equipped with children's cupboards and wardrobes to children in the family to place children's clothes, life utensils, toys, etc.

Recently some home companies have announced that a total of 1730 ten thousand drawer cabinets are recalled in the united states and canada again because another child was hit by a fallen furniture. By the day, over the past 14 years, the company produced cabinets that caused a total of 8 children to die, all from the united states. At present, most of drawer cabinets on the market in China do not have a dumping protection device. With the continuous reporting of the event that the drawer type chest is toppled over to hurt people by media, some manufacturers on the market emergently equip the drawer type chest products with safety ropes or safety hooks. The protection device is characterized in that a metal seat is fixed on the back surface of the cabinet and the wall surface by screws, and the wall surface is connected with the metal seat on the back surface of the cabinet by a steel wire rope or a metal hook. The device can pull the upper part of the cabinet body when the bucket cabinet is toppled over, so as to prevent people from being hurt by toppling.

This problem has been recognized by many companies, and some prior art cabinets have been designed with safety requirements against toppling in mind.

CN201610569839.6 discloses a falling-proof safety cabinet, in which a support sliding device is provided at the lowest drawer and is always in contact with the ground, and an electronic alarm device is triggered after the lowest drawer is opened. When a child pulls out the lowest drawer and stands on the upper portion, the device can increase the stability of the cabinet body, prevent toppling and give an alarm to a guardian through the electronic device. However, this solution only allows for the anti-tipping function when a child pulls out the lowermost drawer and stands on it, which would not work if the child did not open the lowermost drawer, but opened the upper drawer directly and hung on it to find something. The principle of the anti-falling safe bucket cabinet of CN201620762281.9 is basically the same as that of CN201610569839.5, and the description is omitted.

CN201620701090.1 discloses an anti-toppling safety chest of drawers, wherein a metal base is respectively adhered to the wall and the chest by glue at the top of the chest, and the two bases are connected by a latch hook. This scheme only is suitable for the smooth and level condition of wall, and when glue is ageing, the wall wets to and when empting weight is too big, this technical scheme to prevent empting the not technological effect that can not expect to this scheme is inconvenient the user removes the cupboard.

CN201620736759.0 discloses a tipping-proof device for a bucket cabinet, which is characterized in that a supporting device similar to a triangle is additionally made, and the supporting device is inserted into the bottom of the cabinet body when in use, so that when a child stands on the lowest drawer, the supporting device has additional support to prevent the child from tipping. This scheme needs insert cabinet body bottom with extra strutting arrangement when using, and child can't play the guard action under the condition that nobody looked after or the device loses, and the device has influenced the normal use of drawer moreover.

CN201621037410.4 discloses an anti-toppling cabinet, which is a lock mechanism on each drawer, so that the drawers can only be pulled out singly, and the other drawers have the function of locking, thereby preventing the gravity center of the drawer from moving forward and toppling. However, this technique is premised on sacrificing the practicability of the drawer, and although the forward movement of the gravity center of the drawer can be effectively prevented, it is impossible to open a plurality of drawers at the same time.

CN201711333931.3 discloses a device for preventing multiple-drawer cabinet unstability toppling, installs slider link gear at cabinet body curb plate inboard, effectively prevents that a plurality of drawers of the cabinet body from being pulled open simultaneously and leading to the focus antedisplacement to topple over. The problem can only be partially improved by the scheme and the scheme of CN201621037410.4, the potential safety hazard of dumping can not be completely avoided, and the user experience is seriously influenced because the drawer can not be opened simultaneously in a plurality of ways.

CN201720107210.X discloses an anti-tipping bucket cabinet, four supporting legs with external tension are arranged at the bottom of the cabinet, and the legs and the ground are inclined at a certain angle, so that the gravity center is still in the supporting legs after the drawer is opened, and the anti-tipping performance is improved. The outward expansion foot of the scheme seriously influences the appearance and occupies a large installation area. And in order to ensure the minimum inclination angle of 12 degrees mentioned in the proposal, the cabinet legs are made higher, the space utilization rate is lower, and the feet of users are easy to trip by the external-expanding supporting feet.

CN201810630530.2 discloses a safe cabinet of fighting of being difficult for empting, in order to prevent to fight the cabinet and empty, when opening any one deck drawer, the lower floor drawer all can be opened, when the lower floor drawer is closed, all the other arbitrary layer drawers also can be closed, does not consider the condition that the supporting legs need be taken out when the user only need open 2 layers and its upper drawer at all, has seriously influenced user's experience.

The technical scheme that supporting legs are pulled out to prevent the bucket cabinet from toppling when a drawer is opened is disclosed in the prior art, and mainly comprises two modes, namely a lowest drawer is fixedly connected with the supporting legs and simultaneously enters and exits, and the rest drawers cannot control the supporting legs to move; the other type is that the supporting legs can be pulled out from each layer of drawer, but the drawer at the lowest layer can be pulled out together, so that the user experience is ten times inconvenient.

In view of this, how to design an anti-toppling bucket cabinet, any layer of drawer can control the support legs to be drawn out, and the distance of the support legs to be drawn out is controlled by the drawer with the largest drawing distance; when the drawer is closed, the supporting legs are retracted according to the flexibility of the elastic lug of the drawer which is closed finally, and the problem to be solved urgently in the industry is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent empting cabinet of fighting realizes that each layer of drawer can the independent control supporting legs pull out, is with the pull-out distance that the biggest person of pull-out distance controlled the supporting legs when each layer drawer switches to pull out to if make the supporting legs withdraw and must close all drawers, and the last elastic convex block that closes on the drawer imbeds in the stopper on supporting legs drive assembly actuating lever, make the supporting legs withdraw when the drawer is closed. The production cost is greatly reduced, and the user experience is greatly improved.

The utility model discloses a following design: 1. after any layer of drawer is pulled out beyond the safe distance, the supporting legs can be pulled out together, so that the toppling caused by the forward movement of the gravity center of the drawer cabinet is prevented; 2. after all the drawers are closed, the supporting legs are retracted along with the last closed drawer, so that the cabinet body is prevented from toppling under various conditions; 3. through the reasonable cabinet body width of lever principle design, cabinet body dead weight and safe distance, the drawer is opened in safe distance, and the supporting legs does not stretch out, can minimize to outward appearance, user experience's influence.

The utility model discloses a: cabinet body, multilayer drawer still include: the supporting leg driving assembly is used for driving the supporting leg to act; a connecting rod limiting device and an elastic lug are arranged on any layer of drawer, and when the drawer is opened, the connecting rod limiting device on any layer of drawer can drive the supporting legs to extend out of the cabinet body; when the drawer is closed, the drawer which is closed at last controls the retraction of the supporting legs through the flexible matching of the elastic convex blocks and the limiting blocks.

Furthermore, the distance of the supporting legs extending out of the cabinet body is controlled by the drawer with the largest pulling-out distance;

furthermore, the connecting rod limiting device is composed of an installation surface and a limiting surface, and the installation surface is vertical to the limiting surface;

furthermore, the connecting rod limiting device is composed of a rectangular block, the rectangular block is provided with a U-shaped groove, and the bottom end of the U-shaped groove is a limiting surface;

furthermore, a safety distance is further arranged, and when the drawer is pulled out and does not exceed the safety distance, the supporting leg driving assembly does not act;

furthermore, the supporting leg driving assembly comprises a driving rod, a limiting block is arranged on the driving rod, and the limiting block is flexibly matched with the elastic lug to control the retraction of the supporting leg;

furthermore, the limiting block is arranged to be a limiting cylinder, the limiting cylinder is provided with an inclined plane protrusion, the inclined plane protrusion is distributed on the half circumference of one side close to the bottom of the drawer and comprises an outer inclined plane and an inner inclined plane, and the inclination angle of the inner inclined plane is adjusted to meet the force required by the support leg when the support leg is retracted;

furthermore, the supporting leg driving assembly comprises a driving rod, the driving rod is provided with a driving lug, and the driving lug is linked with the limiting surface;

furthermore, the elastic lug is provided with external threads, the side surface of the drawer is provided with an embedded nut, and the distance of the elastic lug extending out of the drawer can be adjusted; through external screw thread and embedded nut, can automatically regulated elastic lug stretch out the distance of drawer, realize adjusting drawer elastic lug and shake out the size of required resistance from the inclined plane is protruding.

Still further, the drive bar is disposed at a safe distance from the support foot.

Compared with the prior art, the method has the following advantages:

after the first drawer in any layer is pulled out for a safe distance, the pulling-out of the supporting legs can be controlled, and the pulling-out position of the supporting legs is controlled by the drawer with the maximum pulling-out distance, so that the supporting legs are prevented from losing efficacy due to unstable supporting points;

secondly, the elastic convex pieces on the drawers are flexibly matched with the limiting blocks on the driving rods, so that the control right of the supporting legs can be smoothly switched among the drawers on each layer, and the supporting legs can be retracted along with the last drawer only after all the drawers are closed, so that the requirement that the cabinet body cannot topple over under various conditions is met;

third, through the reasonable cabinet body width of lever principle design, cabinet body dead weight and safe pull open the distance, the drawer is in safe distance, and the supporting legs does not stretch out, can minimize the influence to cabinet body outward appearance and user experience.

Drawings

FIG. 1 is an overall view of a preferred embodiment provided by the present invention;

fig. 2 is a schematic structural view of the cabinet body provided by the present invention;

FIG. 3 is a schematic view of a drawer structure provided by the present invention;

fig. 4 is a schematic structural view of the supporting leg driving assembly provided by the present invention;

FIG. 5A is a schematic view of the assembly of the supporting driving leg assembly and the drawer according to the present invention;

fig. 5B is an enlarged schematic view of a portion C of fig. 5A according to the present invention;

FIG. 6 is a schematic view of the support leg driving assembly and the drawer provided by the present invention (part of the link limiting device is omitted);

fig. 7 is an enlarged schematic view of the installation structure of the area a in fig. 6 according to the present invention;

FIG. 8 is a cross-sectional view of the support foot drive assembly and drawer arrangement provided by the present invention;

fig. 9 is an enlarged sectional view of the region B of fig. 8 according to the present invention;

FIG. 10 is a schematic view of a fully closed state of a drawer according to the present invention;

FIG. 11 is a schematic view of the drawer opened to a safe distance according to the present invention;

FIG. 12 is a schematic structural view of the drawer provided by the present invention when fully opened;

FIG. 13 is a schematic view of the chest drawer provided by the present invention under the condition that a child hangs on the highest drawer;

fig. 14 is another schematic view of the drawer structure of the present invention.

Reference numbers of the drawings:

1 cabinet body

12 straight line slider

13 cabinet body slide rail

2 drawer

21 drawer surface

22 drawer slide

23 connecting rod limiting device

24 limiting surface

25 rotating spring plunger

3 supporting leg driving assembly

31 fixing sheet

32 driving rod

33 limiting block

34 drive lug

35 supporting foot

36 universal roller

37 inclined plane protrusion

38 outer bevel

39 inner side bevel

Detailed Description

The following detailed description of the embodiments of the present invention refers to the accompanying drawings. In the following description of the embodiments, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "axial", "radial", etc. should be construed as words of convenience and should not be construed as limiting terms. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The preferred embodiment of the bucket cabinet of the present invention is described with reference to fig. 1-12, which firstly describes the overall structure of the bucket cabinet, and secondly describes the independent structure of the bucket cabinet components and the coordination relationship between them.

The upper end of the side surface of the cabinet body 1 is provided with a linear sliding block 12 which is used for being matched with a fixing piece 31 at the upper end of the supporting leg driving component 3; the lower end of the cabinet body 1 is provided with a cabinet body slide rail 13 which is used for matching with the supporting legs 5 at the lower end of the supporting leg driving assembly 3, so as to provide a motion path for the supporting legs 5 and ensure that the supporting legs 5 can move along the direction parallel to the side face of the cabinet body. The linear sliding block 12 and the cabinet body sliding rail 13 on the cabinet body ensure that the drawer 2 and the supporting leg driving component 3 move smoothly.

The side surface of the drawer 2 is provided with a connecting rod limiting device 23, the connecting rod limiting device 23 comprises an installation surface and a limiting surface 24, and the connecting rod limiting device 23 is fixed with the drawer 2 through the installation surface. The preferred configuration is that the mounting and restraint surfaces 24 are vertically disposed. When the drawer 2 is pulled out beyond the safe distance, the limiting surface 24 is interlocked with the driving lug 34, so that the supporting leg driving component 3 is always controlled by the drawer 2 pulled out by the maximum distance.

2 sides of drawer set up rotary spring plunger 25, and elastic plunger 25 is equipped with the external screw thread, embedded nut is installed to 2 both sides of drawer, and elastic plunger 25 adjusts the distance that stretches out drawer 2 through external screw thread and embedded nut for use with stopper 33 cooperation on the actuating lever 32, when closing arbitrary drawer 2 when a plurality of drawers 2 take out the back simultaneously, stopper 33 cooperation on spring plunger 25 and the supporting legs drive assembly 3 for restriction supporting legs drive assembly 3's removal, guarantee that supporting legs drive assembly 3 keeps the drawer department in the outside.

The drawer 2 is further provided with a drawer slide rail 22, and the cabinet body 1 is connected with the drawer 2 through the drawer slide rail 22, so that the drawers 2 on all layers can be freely drawn out.

The supporting leg driving assembly 3 includes a fixing plate 31, a driving rod 32, a stopper 33, a driving protrusion 34, and a supporting leg 35, wherein the stopper 33 is preferably a stopper cylinder 33, the driving protrusion 34 may be a cylinder, a rectangular block, etc., and the structure of the driving protrusion 34 is not limited herein as long as the driving protrusion 34 can partially overlap in a direction perpendicular to the driving rod 32 when contacting the stopper surface 24.

Wherein the drive rod 32 is preferably positioned vertically at a safe distance from the support foot 35.

The supporting leg driving assembly 3 is provided with a driving lug 34, the driving lug 34 is in rigid contact with the limiting surface 24 of the connecting rod limiting device 23 corresponding to each layer, when the drawer 2 is pulled out to a designed distance, the limiting surface 24 on the connecting rod limiting device 23 can drive the supporting leg driving assembly 3 to move horizontally, so that the supporting leg 35 can be pulled out along with any layer of drawer 2, and the distance that the supporting leg 35 extends out of the cabinet body is determined by the distance that the drawer 2 at the farthest layer is pulled out.

The cooperation of the foot-supporting drive assembly 3 with the link limiting means 23 and the spring plunger 25 is further clearly described in connection with fig. 5A-9. When the spring plunger 25 is used to control the foot drive assembly 3, the spring plunger 25 is inserted into the restraining cylinder 33 over the ramped protrusion 37, and the spring plunger 25 flexibly engages the ramped protrusion 37 on the restraining cylinder 33.

The supporting leg driving assembly 3 is provided with a limiting cylinder (limiting block) 33, the limiting cylinder 33 is provided with an inclined plane protrusion 37, the inclined plane protrusion 37 is distributed on the half circumference of one side close to the bottom of the drawer 2, and the inclined plane protrusion 37 can comprise an outer inclined plane 39 and an inner inclined plane 38.

The purpose of the outer inclined surface 39 is to make the spring plunger 25 smoothly slide over the outer inclined surface 39 at the instant when the limiting surface 24 and the driving protrusion 34 are engaged, and the flexible structure of the spring plunger 25 smoothly hangs on the limiting cylinder 33 for controlling the retraction of the supporting leg 35 when the drawer 2 is closed.

The angle of inclination of the inner ramp 38 may vary the amount of force required to disengage the spring plunger 25 from the inner ramp 38 of the stop cylinder 33. When the drawer 2 is closed, the rotary spring plunger 25 on the side surface of the drawer 2 is matched with the limiting cylinder 33 for use, and when the spring plunger 25 on the drawer 2 which is pulled out to the farthest distance crosses the inner side inclined plane 38 along the closing moving direction of the drawer, the spring plunger 25 is compressed to generate certain resistance, and the resistance drives the supporting legs 35 to move. Adjusting the extension distance of the spring plunger 25 or adjusting the angle of the inside slope 38 can control the resistance force within a suitable range.

The resistance is adjusted by adjusting the inclination angle of the inner slope 38 or the extension length of the spring plunger 25. The maximum friction that can be overcome when retrieving the supporting leg 35 is decided by this resistance, because the friction that supporting leg 35 placed on wooden floor and carpet is different, if the resistance is too little when this spring plunger 25 deviates from inboard inclined plane 38, can cause supporting leg 35 to retrieve along with the drawer on wooden floor, but when supporting leg 35 placed on the carpet, supporting leg 35 just can not realize the purpose of retrieving along with the drawer. Multiple experiments prove that the resistance is controlled to be about 10N-20N, the flexible structure can adapt to various different grounds, and meanwhile, the flexible structure has low hanging and hanging resistance and is not easy to cause inconvenience for users. During production and assembly, the extension distance of the spring plunger 25 can be adjusted according to actual conditions, so that the resistance is enough to drive the supporting feet 35 to move horizontally, but at the same time, the resistance is not enough to drive the drawer 2 to move. The amount of resistance can also be varied by varying the coefficient of friction of the surface of the beveled protrusion 37, but this has less effect on the resistance.

Specific applications for the restraining cylinder 33 and the drive lug 34 are as follows: when the distance that arbitrary layer drawer 2 took out surpassed design safe distance outside, spacing face 24 on the drawer 2 and the drive lug 34 contact that corresponds drive 5 drive assembly 3 of supporting legs and move outward, and supporting legs 35 outwards stretches out along with drawer 2, makes the fulcrum of whole atress antedisplacement, and increase resistance arm lets cabinet body 1 be difficult to empty.

For the sake of easy understanding of the working principle of the support leg 35 being retracted when the drawer 2 is closed, the closing of the two-tier drawer 2 drawn out by different distances is explained.

When any two layers of drawers 2 are drawn out by different distances except the safe distance, the spring plungers 25 on the far drawers 2 are flexibly hung in the corresponding limiting cylinders 33, and if a user wants to close the drawer 2 with a short drawn-out distance, because the limiting cylinders 33 on the supporting leg driving assembly 3 are flexibly matched with the spring plungers 25 on the far drawers 2, the supporting legs 35 are controlled by the far drawer 2, and the supporting legs 35 cannot be driven to move inwards when the short drawer 2 is closed and drawn out; when a user closes a drawer 2 which is far away in pulling distance, the drawer 2 moves inwards, the spring plunger 25 on the drawer 2 is in contact with the inner side inclined plane 38 of the inclined plane protrusion 37, at the moment, resistance generated between the inner side inclined plane 38 and the spring plunger 25 drives the supporting leg 35 to move inwards the cabinet body 1, when the pulling distances of the two layers of drawers 2 are equal, the limiting surface 24 on the connecting rod limiting device 23 of the static drawer 2 is in contact with the driving lug 34 on the supporting leg driving assembly 3, the moving drawer 2 is prevented from continuing to move the supporting leg driving assembly 3 inwards, the spring plunger 25 on the moving drawer 2 passes over the inner side inclined plane 38, the limiting cylinder 33 is disengaged, and the supporting leg 35 stays at the position of the drawer 2 which is close in pulling distance; at this time, the spring plunger 25 of the drawer 2 which has been pulled out relatively short is hooked with the corresponding inclined protrusion 37, and the support leg 35 is controlled by the drawer 2 which has been pulled out relatively long (the drawer 2 which has been pulled out relatively short). That is, when the supporting feet 35 are retracted into the cabinet body, the supporting feet are flexibly hung by the spring plunger 25 on the drawer 2 which is pulled out the farthest distance and the limiting cylinder 33 corresponding to the spring plunger 25. If the supporting leg driving component 3 is not hung on the drawer 2 when being pulled out, the supporting leg driving component 3 can be flexibly controlled by pulling the drawer to the maximum position.

When the multiple drawers 2 are all pulled out, the working principle when any drawer 2 is closed is the same as that when only two drawers are closed, and the detailed description is omitted here.

The anti-toppling cabinet has to close all the drawers 2 on each layer in use, and the supporting legs 35 can be retracted. The flexible matching structure is established by the spring plungers 25 on each layer of drawers 2 and the half-circle inclined plane protrusions 37 on the limiting cylinders 33 corresponding to each layer, so that the control right of the control supporting legs 35 can be smoothly switched among the drawers 2 on each layer, the horizontal movement of the supporting legs is temporarily controlled by the person with the largest pulling-out distance under the control condition, and when the drawer 2 on the last layer is closed, the supporting legs 35 return to the cabinet body along with the drawer 2.

The supporting foot 35 of the supporting foot driving component 3 is provided with a universal roller 36, so that the supporting foot 35 can be smoothly pulled out and is always attached to the ground.

The working principle of the utility model is as follows:

the cabinet of fighting takes place to empty the most unfavorable condition as figure 13, wherein, G is cabinet body dead weight, and F is the child's that hangs on the drawer weight, and X is the distance that the drawer was taken out, and L stretches out the length of back distance cabinet body focus for the supporting legs, and n is factor of safety, carries out static analysis to the cabinet body, drawer, child, supporting legs, should satisfy the moment condition if the cabinet body can keep not empting:

G*L＝n*F*X

suppose that: the weight of a five-year-old child is 20kg generally. And the safety factor is 2, and n x F is 40 kg. If the cabinet width is 0.5m, L is 0.25 m. The safe distance X for drawing out the drawer is calculated to be 0.00625G. Therefore, if the weight of the cabinet is 20kg, the drawer safe extraction distance X is 0.125 m; if the weight of the cabinet body is 15kg and the width of the cabinet body is 0.8m, the safe drawer drawing distance X is 0.15 m; if the weight of the cabinet body is 25kg, the width of the cabinet body is 0.8m, and the safe drawer drawing distance X is equal to 0.2m, the weight F of a child can bear 50 kg.

So can leave the factory self weight and cabinet body width through the control cabinet body, reasonable in design's safe distance, this safe distance accessible changes spacing 24's length and realizes, can guarantee that the cabinet body does not topple over under the most unfavorable condition. After the drawer is pulled out to exceed the safe distance, the supporting legs start to extend out, the supporting points move forwards, the resistance arm L is increased, the power arm X is unchanged, and the cabinet body is not prone to toppling under the condition that G is unchanged. Fig. 1 shows a state that the drawer is opened beyond the safety distance, the supporting legs are extended, fig. 11 shows a state that the drawer 2 is opened to the safety distance, the supporting legs are not extended yet, the driving projection 34 has contacted the end of the limiting surface 24, and if the drawer 2 is continuously drawn out, the supporting leg driving assembly 3 is driven to move, so that the supporting legs 35 are extended. Let G be 25kg, initial L be 0.4m, and X be 0.2 m; when the drawer 2 is pulled out to the maximum, the extending distance of the supporting feet 35 is also increased to 0.8m-0.2 m-0.6 m, and finally L-0.4 m +0.6 m-1 m; then the maximum child bearing weight F is (25kg x 1m)/(2 x 0.2m) 62.5kg, and the maximum child bearing weight can reach 125kg if the safety factor is 1.

Based on the above analysis, the present embodiment can satisfy the following requirements:

1. the distance of any layer of any number of drawers 2 is within the designed safety distance, the supporting leg driving assembly 3 does not act, and the cabinet body is prevented from toppling under the most adverse condition by controlling the initial weight of the whole cabinet 1 and the width of the cabinet 1;

2. the drawing distance of any layer of any number of drawers 2 exceeds the designed safe distance, the connecting rod limiting device 23 on the drawers 2 drives the supporting leg driving component 3 to move outwards, the supporting legs 35 extend outwards along with the drawers 2, the whole stressed fulcrum moves forwards, the resistance arm is increased, and the cabinet body is less prone to toppling;

3. if a user wants to withdraw the supporting feet 35, all the drawers 2 need to be closed, after the last drawer 2 is closed, the spring plunger 25 on the drawer 2 and the inclined plane protrusion 37 on the limiting block 33 corresponding to the spring plunger are used for establishing a flexible matching structure, the control right of controlling the supporting feet 35 can be ensured to be smoothly switched among the drawers 2 in each layer, the control condition is that the drawer is pulled out to the maximum distance, the supporting feet 35 are controlled to horizontally move, and when the drawer 2 in the last layer is closed, the supporting feet 35 return to the cabinet body along with the drawer 2.

Second embodiment

Compared with the best embodiment, the second embodiment eliminates the safety distance, that is, the driving rod 32 is arranged at the innermost side of the supporting feet 35 close to the cabinet 1, that is, once any drawer 2 is drawn out, the supporting feet 35 will extend out of the cabinet 1. Other structures and operation principles are similar to those of the first embodiment, and are not described in detail herein.

Third embodiment

Fig. 14 is another schematic view of the drawer structure of the present invention. The third embodiment is a modification of the drive link limiting device 23 compared to the preferred embodiment. The connecting rod limiting device 23 is composed of a rectangular block, a U-shaped groove is formed in the rectangular block, and the bottom end of the U-shaped groove is a limiting surface. The bottom end limiting surface is parallel to the vertical direction of the tail end of the drawer, and when the supporting leg 35 is driven, the bottom end limiting surface of the U-shaped groove is used for placing the driving lug 34 on the driving rod 32. The working principle and the design principle are the same as those of the best embodiment, and the detailed description is omitted here.

Compared with the prior art, the embodiment has the following advantages:

firstly, when a user opens the drawer, the drawer at any layer can control the support legs to be drawn out, and the drawer drawn out at the farthest distance controls the distance that the support legs extend out of the cabinet body; secondly, when a user closes the drawer, the supporting legs can be alternately controlled to be retracted through the flexible matching of the elastic lugs on the drawer and the limiting blocks on the driving rods, and the supporting legs can be controlled to be retracted by the drawer which is closed finally; thirdly, the technical scheme completely depends on a mechanical structure to realize the anti-toppling design of the bucket cabinet, and has low production and use cost and simple structure.

The terms "first" and "second" as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, unless otherwise specified. Similarly, the appearances of the phrases "a" or "an" in various places herein are not necessarily all referring to the same quantity, but rather to the same quantity, and are intended to cover all technical features not previously described. Similarly, modifiers similar to "about", "approximately" or "approximately" that occur before a numerical term herein typically include the same number, and their specific meaning should be read in conjunction with the context. Similarly, unless a specific number of a claim recitation is intended to cover both the singular and the plural, and embodiments may include a single feature or a plurality of features.

The preferred embodiments of the present invention are described in the specification, and the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit the present invention. All technical solutions that can be obtained by logical analysis, reasoning or limited experiments according to the concept of the present invention by those skilled in the art are within the scope of the present invention.

Claims (10)

1. The utility model provides an anti-tilt cabinet, includes a cabinet body, a multilayer drawer, its characterized in that still includes: the supporting leg driving assembly is used for driving a supporting leg to act; a connecting rod limiting device and an elastic lug are arranged on any layer of drawer, and when the drawer is opened, the connecting rod limiting device on any layer of drawer can drive the supporting legs to extend out of the cabinet body; when the drawer is closed, the drawer which is closed finally controls the retraction of the supporting legs through the elastic convex blocks.

2. An anti-tipping bucket cabinet as claimed in claim 1 wherein the distance that the support feet extend out of the cabinet body is controlled by the drawer which is pulled out the greatest distance.

3. An anti-tipping bucket cabinet as claimed in claim 1 wherein the link limiting means is formed by a mounting face and a limiting face, the mounting face and the limiting face being perpendicular.

4. An anti-tipping bucket cabinet as claimed in claim 1, wherein the connecting rod limiting device is composed of a rectangular block, the rectangular block is provided with a U-shaped groove, and the bottom end of the U-shaped groove is a limiting surface.

5. An anti-tipping bucket cabinet as claimed in claim 1 wherein there is a safety distance and the foot-driven assembly is not actuated when the drawer is withdrawn beyond the safety distance.

6. An anti-tipping bucket cabinet as claimed in claim 1, wherein the supporting foot driving assembly comprises a driving rod, the driving rod is provided with a limit block, and the limit block is flexibly matched with the elastic lug to control the retraction of the supporting foot.

7. The anti-toppling bucket cabinet as defined in claim 6, wherein the limiting block is a limiting cylinder, and the limiting cylinder is provided with a slope protrusion, and the slope protrusion is distributed on a half circumference of one side close to the bottom of the drawer; the inclined plane protrusion comprises an outer inclined plane and an inner inclined plane, and the inclination angle of the inner inclined plane is adjusted to provide the required resistance when the supporting leg is retracted.

8. An anti-tipping bucket cabinet as claimed in claim 3 or 4, wherein the supporting foot driving assembly comprises a driving rod, the driving rod is provided with a driving lug, and the driving lug is linked with the limiting surface.

9. The anti-tipping bucket cabinet as claimed in claim 1, wherein the elastic lug is provided with an external thread, the side surface of the drawer is provided with a pre-embedded nut, and the elastic lug can adjust the distance extending out of the drawer.

10. An anti-tip cabinet according to claim 8, wherein the drive bar is provided at a safe distance from the support feet.

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