A drawer box that can be quickly opened and raised and a refrigerator having the drawer box

Abstract

The present invention discloses a drawer box that can be quickly opened and raised and a refrigerator having the drawer box. The drawer box includes a drawer box body and a lifting mechanism. The drawer box body is formed by connecting a front section box body and a flexible elastic frame at the rear section. The flexible elastic frame at the rear section can elastically deform and contract downward relative to the front section box body. By making the rear part of the drawer box into a structure that can elastically deform and contract, when the drawer box is horizontally pulled out, the drawer box can also be vertically raised. That is, the two processes of pulling out and raising the drawer box can be carried out simultaneously, thus reducing the waiting time for users to pick up and place items, improving the efficiency of taking and using items, and enhancing the user experience.

Description

Technical Field

[0001] The present invention relates to refrigeration equipment, and particularly to a drawer box that can be quickly opened and lifted and a refrigerator having the drawer box. Background Art

[0002] In order to facilitate users to take items in the drawer at a lower position of the refrigerator, the industry has designed a liftable refrigerator drawer. That is, when in use, first pull out the refrigerator drawer in place, and then drive the drawer to rise to a certain height so that users can take items. However, the operation of the traditional refrigerator drawer is time-consuming and requires two steps to complete the action - first pull out and then rise, so the speed of opening and lifting the drawer is slow, affecting the efficiency of taking items and the user experience.

[0003] Therefore, how to overcome the defect that the existing refrigerator drawer is slow in opening and lifting speed, affecting the efficiency of taking items and the user experience is an urgent problem to be solved in the industry. Summary of the Invention

[0004] In order to solve the problem that the existing refrigerator drawer is slow in opening and lifting speed, affecting the efficiency of taking items and the user experience, the present invention provides a drawer box that can be quickly opened and lifted and a refrigerator having the drawer box.

[0005] The present invention provides a drawer box that can be quickly opened and lifted, including a drawer box body and a lifting mechanism. The drawer box body is composed of a front section box body and a flexible elastic frame at the rear section, and the flexible elastic frame at the rear end can be elastically deformed and contracted downward relative to the front section box body.

[0006] Preferably, the front section box body is a wedge-shaped box with a higher front and a lower rear, and the flexible elastic frame is a wedge-shaped flexible elastic frame with a lower front and a higher rear. The front end of the wedge-shaped flexible elastic frame is hinged to the upper part of the front end of the wedge-shaped box to form a complete drawer box body.

[0007] Preferably, the lifting mechanism includes lead screw nuts arranged at the four corners of the wedge-shaped box, lead screws in transmission cooperation with the lead screw nuts, a transmission mechanism for driving the lead screws to rotate, and a driving motor mechanism.

[0008] Preferably, the transmission mechanism includes a belt pulley and a lead screw gear coaxially arranged at the lower end of one of the lead screws, belt pulleys coaxially arranged at the lower ends of the other three lead screws, and a belt for belt transmission of the belt pulleys.

[0009] Preferably, the driving motor mechanism includes a motor and a motor gear, and the motor gear is in meshing transmission with the lead screw gear.

[0010] Preferably, the transmission mechanism can also be a belt transmission mechanism, and the driven belt pulley of the belt transmission mechanism is coaxially installed with the lower end of the lead screw.

[0011] Preferably, the drive motor mechanism includes a motor and a driving pulley, and the driving pulley drives a driven pulley of the belt transmission mechanism.

[0012] Preferably, a tension pulley is provided on each side of the driving pulley of the belt transmission mechanism.

[0013] The present invention also provides a refrigerator, including a box body compartment and a drawer. It is characterized in that a drawer box is arranged in the drawer, and a restraint wheel corresponding to both sides of the wedge-shaped flexible elastic frame is arranged on the top surface in the box body compartment.

[0014] Preferably, a top plate is hoisted and fixed on the top surface in the box body compartment through a limit switch.

[0015] In the present invention, the rear half of the drawer box is made into a frame body that can be elastically deformed downward. When the drawer box is empty or the height of the items inside is lower than the drawer port, when the drawer is pulled out horizontally, the lifting mechanism is activated and will also lift the drawer box vertically. That is, during the process of pulling out and rising the drawer box, the restraint wheels arranged on the top surface of the refrigerator compartment just correspond to pressing on both sides of the wedge-shaped flexible elastic frame of the drawer box. Then, the part of the drawer box that has been pulled out continues to rise, while the frame body that has not been pulled out is pressed by the restraint wheels and elastically deformed and contracted downward. When the drawer box is completely pulled out horizontally from the box body compartment, the pressing of the restraint wheels on the wedge-shaped flexible elastic frame is released, and the wedge-shaped flexible elastic frame quickly rebounds upward and returns to its original state. The refrigerator provided by the present invention can perform the two processes of pulling out and rising the drawer simultaneously, reducing the waiting time for users to take and place items, improving the efficiency of taking and placing items, and enhancing the user experience. Since a top plate with a limit switch is provided at the top of the compartment, it can ensure that when the top plate is pushed by the items in the drawer, the limit switch can be triggered to stop rising, avoiding collisions and damaging the items. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the opened drawer of the embodiment of the refrigerator with the drawer box of the present invention;

[0017] Figure 2 is Figure 1 a schematic diagram of the drawer box described above;

[0018] Figure 3 is Figure 2 a schematic diagram of the wedge-shaped flexible elastic frame of the drawer box;

[0019] Figure 4 is Figure 1 a left view when the drawer is just pulled out horizontally in the above;

[0020] Figure 5 is Figure 4 a left view when the drawer is completely pulled out and the drawer box rises and returns to its original state simultaneously in the above.

[0021] Wherein: 1 - Compartment between boxes, 2 - Top plate, 3 - Restraining wheel, 4 - Wedge-shaped flexible elastic frame, 41 - Hinge shaft, 5 - Wedge-shaped box,

[0022] 51 - Lead screw nut, 6 - Motor, 7 - Lead screw gear, 8 - Lead screw, 9 - Belt, 10 - Drawer, 11 - Motor gear, 12 - Limit switch, 13 - Belt pulley. Specific implementation mode

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] As Figure 1 , Figure 2 and Figure 3 shown, an embodiment of a drawer box that can be quickly opened and raised provided by the present invention, the drawer box includes: a drawer box body, a lifting mechanism. The drawer box body is composed of a front section box body and a rear section flexible elastic frame, and the rear section flexible elastic frame can elastically deform and contract downward relative to the front section box body. In this embodiment, the front section box body is a wedge-shaped box 5 with a front high and a rear low, as Figure 2 shown, that is, the left side (front) of the wedge-shaped box 5 is high and the right side (rear) is low, and the flexible elastic frame is a wedge-shaped flexible elastic frame 4 with a front bottom and a rear high, as Figure 3As shown, the left (front) side of the wedge-shaped flexible elastic frame 4 is low and the right (rear) side is high, presenting an inverted wedge shape. The front end of the wedge-shaped flexible elastic frame 4 is hinged to the upper part of the front end of the wedge-shaped box 5 at 41 to form a complete rectangular main body of the drawer box body. When a downward pressure is applied to the wedge-shaped flexible elastic frame 4, the wedge-shaped flexible elastic frame 4 will elastically deform and contract downward, and at the same time, it will also rotate clockwise around the hinge axis 41. The lifting mechanism in this embodiment includes: screw nuts 51 respectively arranged at the four corners of the wedge-shaped box 5. Here, a nut sleeve structure can be used. A lead screw 8 that cooperates with the screw nut 51 for transmission, as well as a transmission mechanism and a drive motor mechanism for driving the lead screw 8 to rotate. The transmission mechanism includes: a pulley 13 and a lead screw gear 7 coaxially arranged at the lower end of one of the four lead screws 8. Pulleys 13 are coaxially arranged at the lower ends of the remaining three lead screws 8. The diameters of the four pulleys 13 are the same, and a belt 9 is used for belt transmission of the pulleys 13. The drive motor mechanism includes a motor 6 and a motor gear 11 coaxially installed on the shaft of the motor. The motor gear 11 meshes with the lead screw gear 7 for transmission. According to needs, other transmission mechanisms can also be selected for the transmission mechanism. For example, a gear set meshing transmission can be used to drive the screw nut mechanism for transmission, or a belt transmission mechanism can also be selected. That is, the driven pulley of the belt transmission mechanism can be coaxially installed with the lower end of the lead screw, and the diameters of the driven pulleys are the same. The drive motor mechanism includes a motor and a driving pulley coaxially installed on the shaft of the motor. A tension pulley is respectively arranged on both sides of the driving pulley to increase the friction of the belt. The driving pulley drives the driven pulley of the belt transmission mechanism to drive the lead screw to rotate. In this embodiment, all belt transmissions can adopt synchronous belt transmission to ensure the reliability of the belt transmission.

[0025] As Figure 1 shown, the present invention also provides a refrigerator, including a cabinet compartment 1 and a drawer 10. The drawer box is arranged in the drawer 10. Constraint wheels 3 corresponding to the left and right sides of the wedge-shaped flexible elastic frame 4 are arranged on the top surface inside the cabinet compartment 1. A top plate 2 is hoisted and fixed on the top surface inside the cabinet compartment 1 through four uniformly distributed limit switches 12 (as Figure 5 shown).

[0026] As Figure 4 、 Figure 5As shown, in the present invention, both the lifting mechanism of the drawer box and the lateral movement of the drawer in and out can be controlled by the controller of the refrigerator. When in use, after the user issues an instruction to the controller to open the drawer 10, the controller controls the horizontal drive mechanism of the drawer 10 to drive the drawer 10 to move outwards along the guide rail. At the same time, the controller controls the drive motor 6 of the drawer box to rotate and drives the lifting mechanism to lift the drawer box upwards. Since the rear half 4 of the drawer box in the present invention is made into a frame that can elastically deform downwards, while the drawer box moves outwards, it also moves upwards. After reaching a certain height, the front ends of the left and right sides of the wedge-shaped flexible elastic frame 4 come into contact with the restraint wheels 3 provided on the inner top surface of the cabinet compartment 1. At this time, the part of the drawer box that has been pulled out continues to rise, while the wedge-shaped flexible elastic frame 4 that has not been pulled out is pressed by the restraint wheels 3 and elastically deformed downwards and shrinks, and at the same time rotates clockwise around the hinge shaft 41 of the drawer box and converges towards the lower limit point 42. As Figure 5 shown, when the drawer box is completely pulled out of the cabinet compartment 1 laterally, the pressing contact of the restraint wheels 3 on the wedge-shaped flexible elastic frame 4 is disengaged, and the wedge-shaped flexible elastic frame 4 quickly rebounds upwards and returns to its original state.

[0027] The refrigerator provided by the present invention can perform the two processes of pulling out and rising the drawer box simultaneously, reducing the waiting time for the user to pick up and place items, improving the efficiency of accessing items, and enhancing the user experience.

[0028] Since the top plate 2 is hoisted by a limit switch 12 at the inner top of the refrigerator compartment 1, as the drawer box continues to rise, when the top plate 2 is squeezed from bottom to top by an item in the drawer box that is higher than the port of the drawer box, the limit switch 12 at the top will be triggered. After the controller detects the signal of the limit switch 12, it controls the motor 6 to stop rotating, and the drawer box stops rising to prevent squeezing the items in the drawer box. If the drawer box is empty or not full, it can continue to move out laterally and upwards vertically.

[0029] Finally, before the drawer 10 is retracted into the cabinet compartment 1, the controller controls the motor 6 to rotate in reverse to drive the drawer box to descend until it is completely retracted into the external drawer 10, and then the controller controls the horizontal drive mechanism of the drawer 10 to drive the drawer to be retracted into the cabinet compartment 1.

[0030] The above are only embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drawer box that can be quickly opened and lifted, comprising a drawer box body and a lifting mechanism, characterized in that, The drawer box body is composed of a front box body and a flexible elastic frame at the rear section. The flexible elastic frame is a wedge-shaped flexible elastic frame with a lower front and a higher rear. While the drawer box moves outward, it also moves upward. After reaching a certain height, the front ends of the left and right sides of the wedge-shaped flexible elastic frame come into contact with the restraint wheels provided on the inner top surface of the compartment in the box body. The part of the drawer box that has been pulled out continues to rise, while the wedge-shaped flexible elastic frame that has not been pulled out is pressed by the restraint wheels and elastically deformed and contracted downward.

2. The drawer box according to claim 1, wherein, The front box body is a wedge-shaped box with a higher front and a lower rear. The front end of the wedge-shaped flexible elastic frame and the upper part of the front end of the wedge-shaped box are hinged to form a complete drawer box body.

3. The drawer box according to claim 2, wherein The lifting mechanism includes lead screw nuts provided at the four corners of the wedge-shaped box, lead screws engaged with the lead screw nuts for transmission, a transmission mechanism for driving the rotation of the lead screws, and a drive motor mechanism.

4. The drawer box according to claim 3, characterized in that, The transmission mechanism includes: a belt pulley and a lead screw gear coaxially arranged at the lower end of one of the lead screws, belt pulleys coaxially arranged at the lower ends of the other three lead screws, and a belt for belt transmission of the belt pulleys.

5. The drawer box according to claim 4, wherein, The drive motor mechanism includes a motor and a motor gear, and the motor gear is engaged with the lead screw gear for transmission.

6. The drawer box according to claim 3, wherein, The transmission mechanism is a belt transmission mechanism, and the driven belt pulley of the belt transmission mechanism is coaxially installed at the lower end of the lead screw.

7. The drawer box according to claim 6, characterized in that, The drive motor mechanism includes a motor and a driving belt pulley, and the driving belt pulley drives the driven belt pulley of the belt transmission mechanism.

8. The drawer box according to claim 7, wherein, Tension wheels are respectively provided on both sides of the driving belt pulley of the belt transmission mechanism.

9. A refrigerator, comprising a cabinet compartment and a drawer, characterized in that, The drawer is provided with the drawer box as described in any one of claims 1 to 8.

10. The refrigerator according to claim 9, characterized in that, A top plate is hoisted and fixed on the top surface in the compartment of the box body through a limit switch.

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