CN108050760B - Refrigerator and its drawer appliance - Google Patents

Abstract

The present invention relates to refrigerator and its drawer appliances.Drawer appliance includes drawer, the upper conducting bar and lower conducting bar that there is the left and right sides outer wall bottom edge to tilt down from back to front；Two support components are individually fixed in storage room left and right sides, respectively include the bracket with upper hopper chute and gliding groove, and gliding groove has preceding vertical section, horizontal segment and rear vertical section；The rear pillar that connector rear and front end is respectively provided with the frong guide column for protruding into gliding groove and protrudes into upper hopper chute；Elastic element applies pretightning force to connector；When drawer moves back closing, upper conducting bar moves back while pushing frong guide column, and vertical section enters horizontal segment and is against before lower conducting bar with the pusher drawer in the case where elastic pre-stress acts on before disengaging it from；When drawer moves forward and opens, lower conducting bar is pushed forward frong guide column, it is made to be caught in preceding vertical section；Drawer is moved back when drawer is in abnormal opening state, lower conducting bar moves back while pushing frong guide column, makes it into rear vertical section to allow lower conducting bar to cross frong guide column, and frong guide column is made to be in lower conducting bar front again.

Description

Refrigerator and its drawer assembly

technical field

The invention relates to a refrigerating and freezing device, in particular to a refrigerator and a drawer assembly thereof.

Background technique

The drawer of the refrigerator is generally arranged in the storage compartment in a pushable and pullable manner. Many drawers adopt a power-assisted closing mechanism. After the drawer is pushed into the storage compartment to a certain extent, the user can let go, and the drawer automatically moves back under the action of the spring until it is completely closed.

However, the existing power-assisted closing mechanisms have a relatively complex structure and low reliability, and are prone to failure.

Contents of the invention

An object of the present invention is to overcome at least one defect of the prior art and provide a refrigerator and its drawer assembly with a novel and simple structure, so that the drawer can be closed automatically and has high reliability and is not prone to failure.

Another purpose of the present invention is to emit a prompt sound when the drawer is closed, prompting the user to let go after hearing the sound, so that the drawer completes the automatic closing process.

In one aspect, the present invention provides a drawer assembly for a refrigerator, comprising:

The drawer is arranged in the storage room of the refrigerator, and its left and right outer walls respectively have an upper guide bar and a lower guide bar located below the upper guide bar. bottom edge;

Two support assemblies are respectively fixed on the left and right side walls of the storage compartment, and each support assembly includes:

The bracket has an upper chute and a lower chute, the upper chute extends forward and backward, the lower chute has a front vertical section, a horizontal section extending backward from the bottom end of the front vertical section, and a rear vertical section extending downward from the rear end of the horizontal section part;

Connectors, the front and rear ends respectively have a front guide column and a rear guide column with axes extending left and right, the front guide column extends into the lower chute, and the rear guide column extends into the upper chute;

Resilient elements that apply a rearward resilient preload to the connectors; the drawer assembly is configured to:

When the drawer is in the normal open state, the front guide column is stuck in the front vertical section, and the upper guide bar and the lower guide bar are located in front of the front guide column;

When the drawer moves back and closes, the upper guide bar moves backward and at the same time its bottom edge presses down on the front guide column, making it break away from the front vertical section and enter the horizontal section, and then press against the front edge of the lower guide bar to push the drawer under the action of elastic pre-tightening force Accelerate backward;

When the drawer is moved forward and opened, the lower guide bar is pushed forward to push the front guide post to make it snap into the front vertical section again, so that the drawer continues to move forward; and

When the drawer is in an abnormally open state where the front guide column is stuck at the rear end of the horizontal section, move the drawer backward, and the lower guide bar moves backward while its bottom edge presses down on the front guide post so that it enters the rear vertical section to allow the lower guide bar to pass over the front guide post. Bring the leading post back in front of the lower rail.

Optionally, the drawer assembly is further configured to: when the front guide post is separated from the front vertical section during the process of the drawer moving backward and closing, the front end of the lower guide bar is located at a preset distance in front of the front guide post, so that the front guide post is separated from the front vertical section. After a period, under the action of the elastic pre-tightening force, it moves backward and hits the lower guide bar, and the prompt sound of the drawer closing is issued.

Optionally, the preset distance is 1-3 cm.

Optionally, there is a smooth transition between the front vertical section and the horizontal section.

Optionally, the bracket has an inner layer plate and an outer layer plate extending forward and backward and parallel to each other, the inner layer plate and the outer layer plate are respectively provided with an upper chute, and the inner layer plate is provided with a sliding groove; Between it and the outer layer board, its rear end has two rear guide posts extending to the left and right, and the two rear guide posts respectively enter an upper chute, and its front end has a front guide post extending toward the drawer.

Optionally, the left and right side walls of the drawer have respectively a first slideway and a first pulley extending forward and backward; a second slideway extending forward and backward and a second pulley are formed inside each bracket, and are configured to: When moving, the first pulley is rolled on the upper surface of the second slideway, and the second pulley is rolled along the lower surface of the first slideway to support the first slideway.

Optionally, the bottom surface of the first slideway has a flange extending forward and backward, and the second pulley is located inside the flange, so that the second pulley will not detach from the first slideway due to left-right movement.

Optionally, the first pulley is located behind the first slideway, and the second pulley is located in front of the second slideway.

Optionally, the elastic element is a tension spring, the front end of which is fixed to the rear of the connector, and the rear end is fixed to the bracket.

On the other hand, the present invention also provides a refrigerator, which includes a box body defining a storage compartment and at least one drawer assembly according to any one of the above items, wherein two supporting assemblies are respectively installed in the storage compartment The left and right side walls; the drawers can be pushed and pulled back and forth and arranged in the storage room.

In the refrigerator and its drawer assembly of the present invention, the two support assemblies can realize the automatic closing of the drawer with the help of power, the structure is simple, and failure is not easy to occur. Moreover, when the drawer is in an abnormally open state where the front guide column is stuck at the rear end of the horizontal section, the user can only move the drawer backward to make the front guide column return to the front of the lower guide bar and restore the mechanism to normal, which is very convenient and fast.

Furthermore, in the refrigerator and its drawer assembly of the present invention, when the drawer is closed, the front guide column can move forward and hit the lower guide bar under the action of the elastic pre-tightening force after detaching from the front vertical section, and an alert sound is emitted. The user can let go after hearing the prompt sound, so that the drawer is automatically closed, so that the user experience is very good.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural view of a drawer assembly according to an embodiment of the present invention;

Fig. 2 is an exploded schematic view of the drawer assembly shown in Fig. 1;

Fig. 3 is an exploded schematic view of the support assembly in Fig. 2;

Fig. 4 is a sectional view of the drawer assembly when the drawer is in a normal open state;

Fig. 5 is an enlarged view of place A of Fig. 4;

Fig. 6 is a sectional view of the drawer assembly when the drawer is in a closed state;

Fig. 7 is an enlarged view at B of Fig. 6;

Fig. 8 is a cross-sectional view of the drawer assembly when the drawer is in an abnormally opened state;

Fig. 9 is an enlarged view at C of Fig. 8;

Fig. 10 is a cross-sectional view of the vertical section of the drawer assembly at the moment when the front guide column is pressed in;

Figure 11 is an enlarged view at D of Figure 10;

Fig. 12 is a schematic cross-sectional view of a partial structure of the drawer at the first slideway.

Detailed ways

An embodiment of the present invention provides a drawer assembly for a refrigerator. As shown in FIGS. 1 to 4 , the drawer assembly includes a drawer 20 and two support assemblies 10 . The drawer 20 is used to be arranged in the storage compartment of the refrigerator in a push-and-pull manner. The left outer wall 201 and the right outer wall 202 have an upper guide bar 210 and a lower guide bar 220 respectively, and the lower guide bar 220 is located below the upper guide bar 210. . Both the upper guide bar 210 and the lower guide bar 220 have bottom edges that are gradually inclined downward from the rear to the front. Two support assemblies 10 are respectively fixed on the left side wall and the right side wall of the storage compartment, and each support assembly 10 includes a main structure, that is, a bracket 100, and the bracket 100 is connected to the left side wall/right side wall of the storage compartment fixed.

As shown in FIG. 1 to FIG. 4 , the left and right side walls of the drawer 20 can respectively have a first slideway 230 and a first pulley 600 extending forward and backward. A second slideway 110 and a second pulley 700 extending forward and backward are formed on the inner side of each bracket 100 (the side close to the drawer 20 ). When the drawer 20 moves back and forth, the first pulley 600 rolls on the upper surface of the second slideway 110 , and the second pulley 700 rolls along the lower surface of the first slideway 230 to support the first slideway 230 . Preferably, the first pulley 600 is located behind the first slideway 230 , and the second pulley 700 is located in front of the second slideway 110 , so as to increase the distance between the two pulleys and make the support for the drawer 20 more stable. Further, as shown in FIG. 12 , the bottom surface of the first slideway 230 can also have a flange 231 extending forward and backward, and the second pulley 700 is located inside the flange 231, so that the second pulley 700 will not be separated from the first pulley due to left and right movement. One slide 230.

The present invention supports the drawer 20 stably on the two brackets 100 through two pulleys and two slideways, and it is very labor-saving to push back and forth.

In some alternative embodiments, it is also possible to use a sliding friction connection between the slideway of the drawer 20 and the slideway of the bracket 100 to omit the pulley, or both pulleys are arranged on the drawer 20, or both pulleys are It is arranged on the bracket 100, and the specific structure will not be repeated here.

As shown in FIGS. 3 to 5 , each supporting assembly 10 includes a bracket 100 , a connecting piece 300 and an elastic element. 3 to 5 illustrate the support assembly 10 on the left side of the drawer 20 . In FIG. 4 to FIG. 11 , the upper guide bar 210 and the lower guide bar 220 are indicated by dotted lines.

The bracket 100 has an upper chute 150 and a lower chute 140 . The upper chute 150 extends along the front-rear direction. The sliding groove 140 has a three-section structure, which includes a front vertical section 141 , a horizontal section 142 extending backward from the bottom end of the front vertical section 141 , and a rear vertical section 143 extending downward from the rear end of the horizontal section 142 . The transition between the front vertical section 141 and the horizontal section 142 is preferably smooth.

The front and rear ends of the connector 300 respectively have a front guide post 310 and a rear guide post 320 whose axes extend left and right. The front guide post 310 extends into the sliding groove 140 and can slide along the extending direction of the sliding groove 140 . The rear guide post 320 extends into the upper chute 150 and can slide along the extending direction of the upper chute 150 . It can be understood that, due to the irregular shape of the sliding groove 140 , when the connecting member 300 slides back and forth, there will also be a rotation about the axis of the rear guide post 320 .

In some embodiments, as shown in FIG. 3 , the bracket 100 has an inner layer board 120 and an outer layer board 130 extending forward and backward and parallel to each other, and the inner layer board 120 is closer to the drawer 20 . The aforementioned upper chute 150 and lower chute 140 are disposed on the inner layer plate 120 . An upper chute 150 is disposed on the outer board 130 , and the upper chute 150 of the inner board 120 is opposite to the upper chute 150 of the outer board 130 . The connector 300 is between the inner plate 120 and the outer plate 130, and its rear end has two rear guide posts 320 extending left and right, and the two rear guide posts 320 enter an upper chute 150 respectively, and its front end There is a front guide column 310 extending toward the drawer 20 , the front guide column 310 passes through the sliding groove 140 , and protrudes from the surface of the bracket 100 so as to contact the upper guide bar 210 and the lower guide bar 220 .

The elastic element is configured to apply a backward elastic pre-tightening force to the connecting piece 300 . Specifically, the elastic element can be a tension spring 500 , the front end of the tension spring 500 is fixed to the rear of the connector 300 , and the rear end of the tension spring 500 is fixed to the bracket 100 .

Introduce the switching process of drawer 20 below:

(1) The drawer 20 is in a normally open state, as shown in FIG. 4 and FIG. 5 . At this time, the connecting member 300 is subjected to a backward elastic pre-tightening force, so that the front guide post 310 is locked in the front vertical section 141 . The upper guide bar 210 and the lower guide bar 220 are located in front of the front guide column 310 .

(2) The process of closing the drawer 20 is the process from Fig. 4, Fig. 5 to Fig. 6, Fig. 7. During this process, the user pushes the drawer 20 backward firstly, and the upper guide bar 210 then moves backward, and its bottom edge will touch the front guide column 310 . Because the bottom edge of the upper guide bar 210 extends obliquely, it will press the front guide post 310 downward while moving backward, so that the front guide post 310 will move down in the front vertical section 141 until it breaks away from the front vertical section 141 , into horizontal section 142 . When the front guide column 310 enters the horizontal section 142, it will move backward under the action of the elastic pre-tightening force to just abut against the front of the lower guide bar 220, and then push the lower guide bar 220 along the horizontal section 142 under the action of the elastic pre-tightening force Accelerate the backward movement, that is, push the drawer 20 to accelerate the backward movement. Until the drawer 20 is completely closed, the front guide column 310 is just at the rear end of the horizontal section 142 at this time.

Preferably, when the drawer 20 moves backward and closes, when the front guide post 310 is separated from the front vertical section 141, the front end of the lower guide bar 220 is positioned at a preset distance (such as 1-3 cm) in front of the front guide post 310 (rather than exactly touching The lower guide bar 220), so that after the front guide post 310 breaks away from the front vertical section 141, it accelerates and moves backward under the action of the elastic pre-tightening force to hit the lower guide bar 220, and a prompt sound is issued to prompt the user to close the drawer. The user can let go after hearing the prompt sound, so that the drawer 20 is automatically closed, so that the user experience is very good.

(3) The process of opening the drawer 20 normally: that is, the process from Fig. 6 and Fig. 7 to Fig. 4 and Fig. 5 . During this process, the user pulls the drawer 20 forward, and the lower guide bar 220 overcomes the elastic pre-tightening force to push the front guide post 310 to move forward along the horizontal section 142 until the front end of the horizontal section 142 is reached. The junction of the vertical section 141 gradually moves up into the front vertical section 141 to re-snap into the front vertical section 141 . At this time, the front guide column 310 has been separated from the lower guide bar 220, so that the drawer 20 can continue to move forward and open to the extent required by the user.

(4) In some abnormal cases, the drawer 20 is in an abnormally open state. As shown in Fig. 8 and Fig. 9, the drawer 20 is located at the rear end of the front guide post 310 at the horizontal section 142, while the upper guide bar 210 and the lower guide bar 220 are located in front of the front guide post 310, and the mechanism has failed at this moment. The user needs to move the drawer 20 backwards so that the lower guide bar 220 moves back to a position in contact with the front guide post 310, and when the lower guide bar 220 moves backward, its bottom edge presses down on the front guide post 310, so that the front guide post 310 enters the rear vertical section 143 , to allow the lower guide bar 220 to cross over the front guide post 310 (state shown in Figure 10 and Figure 11), then the connector 300 rotates under the action of the elastic pre-tightening force, so that the front guide post 310 moves up to be in the lower guide bar 220 again Back to the state shown in Figure 6 and Figure 7. Make the drawer 20 be in the normally closed state again, so that the user can complete the normal opening process afterwards.

Another aspect of the embodiments of the present invention provides a refrigerator. The refrigerator includes a box body defining a storage compartment and at least one drawer assembly according to any one of the above embodiments. Wherein, the two support assemblies 10 are respectively mounted on the left and right side walls of the storage compartment, and the drawer 20 is arranged in the storage compartment in such a way that it can be pushed and pulled back and forth.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. a kind of drawer appliance for refrigerator, characterized by comprising:

Drawer is arranged in the storage room of refrigerator, and left and right sides outer wall respectively has upper conducting bar and is located at the upper conducting bar The lower conducting bar of lower section, the upper conducting bar and the lower conducting bar all have from back to front inclined bottom edge gradually downward；

Two support components, are individually fixed in the left and right sidewall of the storage room, and each support component includes:

Bracket extends before and after the upper hopper chute with upper hopper chute and gliding groove, and the gliding groove has preceding vertical section, from institute State the horizontal segment and the rear vertical section extended downwardly from the horizontal segment rear end that preceding vertical section bottom end extends back；

Connector, rear and front end are respectively provided with frong guide column and rear pillar, the axis edge left and right of the frong guide column and the rear pillar Direction extends, and the frong guide column protrudes into the gliding groove, and the rear pillar protrudes into the upper hopper chute；

Elastic element applies elastic pre-stress backward to the connector；The drawer appliance is configured to:

When the drawer is in normally open state, be stuck in the frong guide column in the preceding vertical section, the upper conducting bar and The lower conducting bar is located in front of the frong guide column；

It is moved back in closing process in the drawer, the upper conducting bar moves back while its bottom edge pushes the frong guide column, disengages it from The preceding vertical section enters the horizontal segment, and is against the lower conducting bar front, described in pushing in the case where elastic pre-stress acts on Drawer acceleration moves back；

In drawer Forward opening procedure, the lower conducting bar is made to be pushed forward the frong guide column, is caught in it again described preceding perpendicular After straight section, the drawer is made to continue to move forward；And

When the drawer is in the frong guide column and is stuck in the abnormal opening state of the horizontal segment rear end, the drawer is moved back, The lower conducting bar moves back while its bottom edge pushes the frong guide column, makes it into the rear vertical section to allow the lower conducting bar to get over The frong guide column is crossed, the frong guide column is made to be in the lower conducting bar front again.

2. drawer appliance according to claim 1, it is characterised in that be configured to:

It is moved back in closing process in the drawer, when the frong guide column is detached from the preceding vertical section, makes the lower conducting bar front end At the frong guide column front preset distance, so as to make after the frong guide column is detached from the preceding vertical section in elastic pre-stress It is moved back under and hits the lower conducting bar, issue the prompt tone that the drawer is closed.

3. drawer appliance according to claim 2, which is characterized in that

The pre-determined distance is 1~3cm.

4. drawer appliance according to claim 1, which is characterized in that

It is smooth transition between the preceding vertical section and the horizontal segment.

5. drawer appliance according to claim 1, which is characterized in that

There is the bracket front and back to extend and the inner plating and lamina rara externa that are parallel to each other, each on the inner plating and the lamina rara externa From the upper hopper chute is provided with, the gliding groove is provided on the inner plating；

The connector is between the inner plating and the lamina rara externa, and its rear end has two institutes extended to the left and to the right Rear pillar is stated, two rear pillar respectively enter the upper hopper chute, what front end extended with one towards the drawer The frong guide column.

6. drawer appliance according to claim 1, which is characterized in that

The left and right sidewall of the drawer is respectively provided with the first slideway and first pulley that front and back extends；In each bracket Side is formed with the second slideway and second pulley that front and back extends, and is configured to:

When the drawer is moved forward and backward, rolls the first pulley on second slideway upper surface, make described second Pulley is rolled along first slideway lower surface to support first slideway.

7. drawer appliance according to claim 6, which is characterized in that

The flange that there is front and back to extend for the bottom surface of first slideway, the second pulley is located on the inside of the flange, so that institute First slideway will not be detached from because moving left and right by stating second pulley.

8. drawer appliance according to claim 6, which is characterized in that

The first pulley is located at first slideway rear, and the second pulley is located in front of second slideway.

9. drawer appliance according to claim 1, which is characterized in that

The elastic element is tension spring, and the rear portion of the connector is fixed in front end, and the bracket is fixed in rear end.

10. a kind of refrigerator, it is characterised in that including define storage room cabinet and at least one according to claim 1 to 9 Any one of described in drawer appliance, wherein

Described two support components are respectively arranged in the left and right sidewall of the storage room；

The drawer can be arranged in the storage room to front and back push-and-pull.