CN106766618A - Refrigerator - Google Patents

Abstract

The invention provides a refrigerator, which includes a box body with an open front side; a drawer with an upper side opening, which can be arranged in the box body in a forward and backward translation between a front limit position and a rear limit position; a locking cover, which It can be arranged above the drawer in a vertically translational manner, and is configured to move down to a closed position where the upper opening is covered and the drawer cannot move forward when the drawer is in the rear limit position, or moved up to be away from the upper opening to allow The open position of the drawer moving forward; and the translation operation device, which is configured to be manually operated by the user to drive the locking cover to translate up and down. The refrigerator of the present invention can realize sealed storage of articles and can conveniently and quickly open and close the locking cover of the drawer.

Description

refrigerator

technical field

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

Background technique

At present, the storage devices provided in most refrigerators include multiple types, including multi-layer shelves, storage boxes and drawers located in the storage room, bottle holders located on the inner lining of the door, and to a certain extent Realized the classified storage of items. However, the above-mentioned several storage devices still belong to the open type, and cannot realize the sealed storage of some special items.

Contents of the invention

An object of the present invention is to overcome the above-mentioned defects in the prior art, and provide a refrigerator capable of realizing sealed storage of articles.

A further object of the present invention is to open and close the locking cover of the drawer conveniently and quickly.

In particular, the present invention provides a refrigerator, comprising: a box body with an open front side; a drawer with an upper side opening, which can be arranged in the box body in translation forward and backward between a front limit position and a rear limit position; a lock Tight cover, which can be arranged on the top of the drawer in translation up and down, and is configured to move down to the closed position that covers the upper opening of the cover and prevent the drawer from moving forward when the drawer is in the rear limit position, or move up to away from the upper The side opening allows the open position of the drawer to move forward; and the translation operation device, which is configured to be manually operated by the user to drive the locking cover to translate up and down.

Optionally, the translation operation device includes at least one lead screw and nut mechanism, and each lead screw and nut mechanism includes: a lead screw extending vertically, which is directly or indirectly installed on the box body, and can rotate around its own rotation axis; and The nut matched with the lead screw is fixed on the lock cover. When the lead screw rotates forward or reverse, the nut drives the lock cover to move upward or downward.

Optionally, there are multiple lead screw and nut mechanisms, and the lead screws of the multiple lead screw and nut mechanisms use transmission belts to transmit motion, so as to realize synchronous rotation.

Optionally, the locking cover is a square plate structure; and the number of screw nut mechanisms is four, and the nuts of the four screw nut mechanisms are respectively located at the four corners of the locking cover.

Optionally, the translation operation device further includes: an operating handle, which is fixedly connected to the transmission belt, so that the user holds the operation handle to move the transmission belt, so that the transmission belt drives the screw to rotate.

Optionally, the refrigerator further includes a partition, which is fixed to the inner wall of the box above the locking cover; and the lead screw is rotatably mounted on the partition, and the transmission belt is located below the partition.

Optionally, a long through hole is provided on the partition, and its length direction is parallel to the moving direction of the transmission belt; and the operating handle can be slidably installed in the long through hole along the length direction of the long through hole, and the bottom of the operating handle is connected For the transmission belt, the top protrudes upwards from the upper surface of the partition so that the user can hold it.

Optionally, the edge of the locking cover is formed with an inclined surface gradually inclined inward from top to bottom; and the top of the inner wall of the drawer is formed with an inclined surface gradually inclined inward from top to bottom, when the locking cover is in the closed position , the slope surface is clamped on the inside of the slope surface so that the drawer cannot move back and forth.

Optionally, a sealing strip is attached to the inclined surface and/or the inclined surface.

Optionally, the refrigerator further includes a drawer position detection device configured to detect the position of the drawer, and send a preset reminder to the user after the drawer moves to the rear limit position.

In the refrigerator of the present invention, the locking cover is not only used to cover the upper opening of the drawer to isolate it from the outside world, so as to realize the sealed storage of the articles, but also to restrain the drawer so that it cannot Pull out forward, thus enhancing the stability of the drawer, this structural design is very ingenious. Moreover, before the drawer is pulled out of the box body forward, the locking cover has been opened, and there is no need for the user to open the cover again, which saves operating time.

Furthermore, the refrigerator of the present invention utilizes a screw nut mechanism to drive the locking cover to translate up and down, and has a simple structure and is easy to manufacture. Moreover, a plurality of lead screw nut mechanisms can be used to make the translation process of the locking cover more stable, and the arrangement of the transmission belt also realizes the synchronous rotation among the plurality of lead screws.

Furthermore, in the refrigerator of the present invention, the operating handle is fixed on the transmission belt, so that the user can hold the operation handle to move the transmission belt, so that the transmission belt drives the screw to rotate. In addition, the operating handle can be further arranged on the partition above the drawer, which facilitates the translation process of the user to operate the locking cover.

Furthermore, the refrigerator of the present invention uses a drawer position detection device to detect the position of the drawer, and after the drawer is pushed into the cabinet until it reaches the rear limit position (that is, it is completely inside the cabinet), it sends a preset reminder to the user to remind the user of this When the locking cover and the drawer have been correctly aligned, you can choose to close the locking cover. This can prevent the lock cover from moving down when the drawer has not moved back to the rear limit position, resulting in misalignment of the lock cover and the drawer.

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 sectional view of a refrigerator according to an embodiment of the present invention, the locking cover of which is in a closed position;

Fig. 2 is an enlarged view of part A of Fig. 1;

Fig. 3 is a schematic diagram after the locking cover in Fig. 1 is moved up to the open position;

Fig. 4 is an enlarged view of part B of Fig. 3;

Fig. 5 is a schematic diagram of moving the drawer of Fig. 3 forward for a certain distance;

Fig. 6 is a schematic exploded view of a drawer, a locking cover and a partition in a refrigerator according to an embodiment of the present invention;

Fig. 7 is a structural schematic diagram of the lead screw and the transmission belt in Fig. 6 .

detailed description

The refrigerator according to the embodiment of the present invention will be described below according to FIG. 1 to FIG. 7 . Fig. 1 is a schematic cross-sectional view of a refrigerator according to an embodiment of the present invention, and its locking cover 300 is in a closed position; Fig. 2 is an enlarged view of part A of Fig. 1; Fig. 3 is the locking cover 300 of Fig. Figure 4 is an enlarged view of part B of Figure 3; Figure 5 is a schematic view after the drawer 200 in Figure 3 has been moved forward for a certain distance.

As shown in FIGS. 1 to 5 , an embodiment of the present invention provides a refrigerator, which generally includes a box body 100 with an open front, a drawer 200 with an upper opening, a locking cover 300 and a translation operation device 500 . Wherein, a space is defined inside the box body 100 , and the drawer 200 can be disposed inside the box body 100 in a forward and backward translational manner between a front limit position and a rear limit position. The aforementioned rear limit position refers to the position where the drawer 200 is fully pushed into the inside of the box body 100 , that is, the position shown in FIG. 1 . The front limit position refers to the position where the drawer 200 is pulled forward until it can no longer move forward. At this time, the user can remove items from the drawer 200 memory. The installation form between the drawer 200 and the box body 100 is well known to those skilled in the art. For example, in FIG. The locking cover 300 is disposed above the drawer 200 so that it can move up and down (and can only move up and down). The locking cover 300 is configured to move down to the closed position (as shown in Figures 1 and 2) when the drawer 200 is in the rear limit position, so as to cover the upper opening of the drawer 200 and prevent the drawer 200 from moving forward; or move up to an open position away from the upper opening of the drawer 200 to allow the drawer 200 to move forward. When the locking cover 300 is in the aforementioned closed position, it together with the drawer 200 defines a storage space 201 isolated from the outside world, realizing sealed storage of items. Moreover, the locking cover 300 can also constrain the drawer 200 so that it cannot be pulled out forward, so that the position of the drawer 200 is more stable. When the user needs to access items from the drawer 200, the lock cover 300 should be moved up to the aforementioned open position (as shown in FIGS. 3 and 4 ) before the drawer 200 can be pulled forward (as shown in FIG. 5 ). Compared with some prior art drawers with upper covers that must be completely pulled out of the box (i.e. to the front limit position) before the cover can be manually opened, in the solution of the present invention, the drawer 200 is drawn out of the box 100 Before, the upper side opening thereof is already in an open state, therefore, the user only needs to pull out the drawer 200 slightly forward to access the articles without pulling out the drawer 200 completely. The translation operation device 500 is configured to be manually operated by the user to drive the locking cover 300 to translate up and down, so that the user can control the opening and closing of the locking cover 300, thereby improving the convenience of use and enhancing the user experience.

As shown in FIG. 2 and FIG. 4 , in some embodiments of the present invention, the aforementioned translation operation device 500 includes at least one lead screw and nut mechanism. Each lead screw nut mechanism includes a lead screw 520 extending vertically and a nut 530 for cooperating with the lead screw 520 and fixing to the locking cover 300 . The lead screw 520 is directly or indirectly installed on the box body 100 and can rotate around its own rotation axis. The lead screw 520 is formed with an external thread, and the nut 530 is formed with an internal thread consistent with the specification of the external thread of the lead screw 520 . The user can manually rotate the lead screw 520 forward or reverse to make it rotate forward or reverse in the nut 530, and the screwing of the two can make the nut 530 relative to the lead screw 520 along the extension direction of the lead screw 520 (that is, the vertical direction). ) displacement, and then drives the locking cover 300 to translate upward or downward. The nut 530 can be disposed on the upper surface of the locking cover 300 , and is preferably an integral part integrally formed with the locking cover 300 .

In some embodiments of the present invention, a partition 400 may also be provided above the locking cover 300 , and the partition 400 is fixed to the inner wall of the box body 100 . The partition 400 may be a partition part for different storage compartments inside the box body 100, or a storage part for storing items.

The lead screw 520 can be rotatably installed on the separator 400 . As shown in FIG. 2 , an installation hole 410 for installing the lead screw 520 can be opened on the partition 400 , and the lead screw 520 is rotatably installed in the installation hole 410 . Moreover, the size of the head 521 of the lead screw 520 is larger than the diameter of the installation hole 410 to constrain the lead screw 520 so that it cannot move down. In addition, the user can also hold the head 521 of the lead screw 520 to rotate the lead screw 520 .

Fig. 6 is a schematic exploded view of the drawer 200, locking cover 300 and partition 400 in a refrigerator according to an embodiment of the present invention; Fig. 7 is a structural schematic diagram of the lead screw 520 and the transmission belt 700 in Fig. 6 . As shown in FIG. 2 , FIG. 6 and FIG. 7 , in order to make the translation process of the locking cover 300 more stable, in some preferred embodiments of the present invention, multiple screw nut mechanisms are used to drive the locking cover 300 . A transmission belt 700 is used to transfer motion among the lead screws 520 of the plurality of lead screw nut mechanisms, so as to realize the synchronous rotation of all the lead screws 520 . In some embodiments, only one transmission belt 700 may be provided as shown in FIG. 6 , and the transmission belt 700 is connected with four lead screws 520 . In some other embodiments, four transmission belts may be provided, and each transmission belt connects two adjacent lead screws.

As shown in FIG. 7 , in some embodiments, the section of the lead screw 520 used to cooperate with the transmission belt 700 may be formed with a tooth structure extending vertically to enhance the friction between the lead screw 520 and the transmission belt 700 and reduce the friction between the lead screw 520 and the transmission belt 700. Small transmission errors.

The locking cover 300 is preferably a square plate structure (as shown in Fig. 2 and Fig. 6) (the upper side opening of the drawer 200 is also a square), at this time four leading screw nut mechanisms can be set, and the nuts 530 of the four leading screw nut mechanisms They are respectively located at the four corners of the locking cover 300 . In addition, the four nuts 530 disposed at the four corners of the locking cover 300 can also make the locking cover 300 more tightly cover the upper opening of the drawer 200 and improve its airtightness.

In some embodiments of the present invention, the translation operation device 500 further includes an operating handle 800 which is fixedly connected to the transmission belt 700 so that the user holds the operation handle 800 to move the transmission belt 700 so that the transmission belt 700 drives the screw 520 to rotate.

As shown in FIG. 6 , in the embodiment provided with the partition 400 , the driving belt 700 is located under the partition 400 . The separator 400 is provided with a long through hole 410, and the length direction of the long through hole 410 is parallel to the moving direction of the transmission belt 700 (the moving direction of the transmission belt is marked by an arrow in FIG. 6 ). The operating handle 800 is slidably installed in the elongated through hole 410 along the length direction of the elongated through hole 410 . The bottom of the operating handle 800 is connected to the transmission belt 700, and the top protrudes upwards from the upper surface of the partition 400 so that the user can hold it.

Specifically, as shown in FIG. 6, the connecting block 710 can be fixed on the front section of the transmission belt 700, and the bottom of the operating handle 800 is provided with a mounting groove 810, and the connecting block 710 is inserted into the mounting groove 810 to realize both detachable connection. The opening of the installation groove 810 can be set downwards, so as to facilitate the disassembly and assembly of the connection block 710 .

In some alternative embodiments not shown in the accompanying drawings, the partition 400 is not provided above the locking cover 300, and the lead screw 520 can be directly installed on the wall of the box body 100 at this time. It is well known to those skilled in the art and will not be repeated here.

In some embodiments of the present invention, the edge of the locking cover 300 may be formed with an inclined surface 320 gradually inclined inwardly from top to bottom, and the top of the inner wall of the drawer 200 is formed with an inclined surface 210 gradually inclined inwardly from top to bottom. , when the locking cover 300 is in the closed position, the slope surface 320 is clamped inside the slope surface 210, so that the drawer 200 cannot move back and forth.

In an alternative embodiment not shown in the drawings, other structures may also be designed so that the locking cover 300 can constrain the forward and backward movement of the drawer 200 when it is in the closed position. For example, the locking cover 300 is fastened on the upper part of the drawer 200 . Alternatively, a pin and a pin hole are respectively provided on the locking cover 300 and the drawer 200 , and when the two are aligned, the pin is inserted into the pin hole.

In some embodiments of the present invention, in order to improve the airtightness of the drawer 200 , a sealing strip 600 may be pasted on the inclined surface 320 and/or the inclined surface 210 of the locking cover 300 . For example, as shown in FIG. 2 , FIG. 4 , and FIG. 6 , the sealing strip 600 is attached to the slope surface 320 of the locking cover 300 .

In some embodiments of the present invention, a drawer position detection device (not shown) may also be provided in the refrigerator, which is configured to detect the position of the drawer 200 . The drawer position detection device can be a variety of sensors, such as an infrared distance sensor arranged at the rear of the locking cover 300, when the drawer 200 moves back to the bottom of the infrared distance sensor, it can be sensed by it. After the drawer 200 is pushed backward by the user until it reaches the rear limit position, the drawer position detection device sends a preset prompt to the user (such as making the indicator light flash), reminding the user to close the locking cover 300 at this time. This can prevent the locking cover 300 from moving down when the drawer 200 has not moved back to the rear limit position, causing the locking cover 300 and the drawer 200 to be misaligned.

In each of the above embodiments, the refrigerator may include one or more of the above-mentioned drawers 200 and locking covers 300 . In some structures, the drawer 200 may be a freezer drawer disposed in a storage compartment (such as a freezer compartment) of a refrigerator, and a door body is disposed on the outside of the storage compartment. In other structures, the refrigerator adopts a drawer-type door structure, that is, no door body is provided outside the storage compartment, and the front panel of the drawer constitutes the front appearance of the refrigerator.

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 refrigerator, comprising: Box with an open front; a drawer with an opening on the upper side, which can be disposed in the box in a forward and backward translational manner between a front limit position and a rear limit position; A locking cover, which can be arranged above the drawer in a vertically translational manner, and is configured to move down to cover the upper opening and prevent the drawer from moving forward when the drawer is at the rear extreme position. a closed position moved up, or an open position moved up away from the upper side opening to allow forward movement of the drawer; and The translation operation device is configured to be manually operated by a user to drive the locking cover to translate up and down. 2. The refrigerator according to claim 1, wherein said translation operation device comprises at least one lead screw and nut mechanism, each of said lead screw and nut mechanisms comprising: a vertically extending lead screw mounted directly or indirectly to the housing and rotatable about its own axis of rotation; and The nut matched with the lead screw is fixed on the lock cover, and when the lead screw rotates forward or reverse, the nut drives the lock cover to translate upward or downward. 3. The refrigerator according to claim 2, wherein There are multiple lead screw and nut mechanisms, and transmission belts are used between the lead screws of the multiple lead screw and nut mechanisms to realize synchronous rotation. 4. The refrigerator according to claim 3, wherein The locking cover is a square plate structure; and The number of the screw nut mechanisms is four, and the nuts of the four screw nut mechanisms are respectively located at the four corners of the locking cover. 5. The refrigerator according to claim 3, wherein the translation operation device further comprises: An operating handle is fixedly connected to the transmission belt, so that the user holds the operation handle to move the transmission belt, so that the transmission belt drives the screw to rotate. 6. The refrigerator according to claim 5, further comprising: a partition secured to the inner wall of the box above the locking cover; and The lead screw is rotatably mounted on the partition, and the transmission belt is located below the partition. 7. The refrigerator according to claim 6, wherein The separator is provided with a long through hole, the length direction of which is parallel to the moving direction of the transmission belt; and The operating handle can be slidably installed in the long through hole along the length direction of the long through hole, the bottom of the operating handle is connected to the transmission belt, and the top protrudes upwards from the upper surface of the partition for the user to hold . 8. The refrigerator according to claim 1, wherein The edge of the locking cover is formed with a slope surface gradually inclined inwardly from top to bottom; and The top of the inner wall of the drawer is formed with an inclined surface gradually inclined inwardly from top to bottom. When the locking cover is in the closed position, the inclined surface is clamped on the inner side of the inclined surface, so that the The drawer cannot be moved back and forth. 9. The refrigerator according to claim 8, wherein A sealing strip is attached to the inclined surface and/or the inclined surface. 10. The refrigerator according to claim 1, further comprising: The drawer position detection device is configured to detect the position of the drawer, and send a preset prompt to the user after the drawer moves backward to the rear limit position.