CN219656429U - Vacuum drawer and refrigerator - Google Patents

Abstract

The utility model relates to a vacuum drawer and a refrigerator, wherein the vacuum drawer comprises: the drawer body is internally provided with a containing cavity, and the front end of the drawer body is concavely provided with an assembly groove; the drawer door is provided with a jogged part on the back surface; the front side wall of the accommodating cavity extends obliquely upwards forwards and upwards, so that the width of the accommodating cavity is gradually increased from bottom to top; the thickness of the drawer door is gradually reduced, so that the volume of the accommodating cavity is further expanded, the volume of the drawer door is reduced, and the available space of the vacuum drawer is increased to a certain extent. Meanwhile, the embedded part can be embedded in the assembly groove, so that the drawer door is fixed at the front end of the drawer body, the assembly groove is matched with the embedded part at the back side of the drawer door in a clamping way, the structural strength between the front end of the drawer body and the drawer door is improved, the front end of the drawer body is prevented from deforming in a vacuumizing state, the reliability of the vacuum drawer is improved, and the overall performance of the vacuum drawer is further improved.

Description

Vacuum drawer and refrigerator

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to a vacuum drawer and a refrigerator.

Background

The refrigerator is an indispensable electrical product in home life. With the increasing demands of consumers on fresh foods, the demands on refrigerators are also increasing. For example, a vacuum drawer is provided in a refrigerator, and the inside of the vacuum drawer can be deoxygenated by vacuuming the vacuum drawer to prevent food from deteriorating.

The existing vacuum drawer generally comprises a drawer body and a drawer door, wherein the drawer door generally adopts a structure with uniform thickness and equal width up and down, and the drawer door of the structure occupies a larger space, so that the unavailable space for storing the refrigerator is additionally increased.

Disclosure of Invention

The utility model aims to provide a vacuum drawer and a refrigerator, so as to optimize the structure of the vacuum drawer in the related technology and improve the overall performance of the vacuum drawer.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a vacuum drawer comprising: the drawer body is internally provided with a containing cavity with an opening at the top, and the front end surface of the drawer body is concavely provided with an assembly groove; the drawer door is arranged on the front side of the drawer body, and the back surface of the drawer door is convexly provided with an embedded part matched with the assembly groove; the front side wall of the accommodating cavity extends forwards and upwards obliquely upwards, so that the width of the accommodating cavity is gradually increased in the direction from bottom to top; the thickness of the drawer door gradually decreases from bottom to top, and the embedded part can be embedded in the assembly groove, so that the drawer door is fixed at the front end of the drawer body.

In some embodiments of the present utility model, a first supporting rib extending in a strip shape is convexly provided on the top surface of the front side wall of the drawer body, and the extending direction of the first supporting rib is consistent with the extending direction of the front side wall of the drawer body; and/or the bottom surface of the front side wall of the drawer body is convexly provided with a second supporting rib which extends in a strip shape, and the extending direction of the second supporting rib is consistent with the extending direction of the front side wall of the drawer body.

In some embodiments of the present utility model, the back of the drawer door is concavely provided with a fitting groove, and the fitting groove is annular and is circumferentially arranged on the periphery of the fitting part; the peripheral side groove wall of the fitting groove is capable of being fitted and fixed in the fitting groove so that the fitting portion is capable of being fitted and fixed in the fitting groove.

In some embodiments of the present utility model, a clamping protrusion is convexly arranged on a peripheral side groove wall of the assembly groove, and a clamping groove matched with the clamping protrusion is concavely arranged on an outer peripheral wall of the embedded part; when the peripheral groove wall of the assembly groove is embedded in the embedded groove, the clamping protrusion can be clamped and fixed in the clamping groove.

In some embodiments of the present utility model, a plurality of reinforcing ribs are disposed in the fitting portion and face the fitting groove, and the plurality of reinforcing ribs are disposed in a staggered manner.

In some embodiments of the present utility model, a vent hole is formed in the embedded part, and the vent hole is communicated with the storage cavity; the vacuum drawer further comprises a pressure relief device which is movably arranged in the drawer door and used for opening and closing the vent hole.

In some embodiments of the utility model, the drawer door includes a door frame and a door facing; the door panel shell is arranged on the front side of the door frame, a mounting cavity is formed between the door panel shell and the door frame in a surrounding mode, the door frame extends obliquely upwards towards the direction close to the door panel shell, and the front side surface of the door panel shell is a vertical surface, so that the thickness of the mounting cavity is gradually reduced in the direction from bottom to top; the front side surface of the door frame is concavely provided with a containing groove communicated with the mounting cavity; the vent hole is formed in the accommodating groove, the pressure relief device is movably arranged in the accommodating groove, and the embedded part is formed at the back of the door frame.

In some embodiments of the utility model, the vacuum drawer further comprises a locking device, wherein the locking device comprises a connecting frame, a handle rod and a connecting rod; the two connecting frames are respectively connected to the left side and the right side of the door frame in a rotating way along the same axis; the handle rod is arranged on the front side of the door panel shell in a transversely extending manner, and two ends of the handle rod are respectively connected with one connecting frame; the connecting rod movably penetrates through the mounting cavity, and two ends of the connecting rod extend out of the left side and the right side of the door frame respectively and are connected with the connecting frame respectively; the pressure relief device comprises a rotating block, a pressure relief valve and a torsion spring; the rotating block is rotatably connected to the groove wall of the accommodating groove and is positioned on the upper side of the vent hole, and the rotating shaft of the rotating block is coaxial with the rotating shaft of the connecting frame; a shaft sleeve part is formed at one end of the rotating block, which is far away from the rotating shaft, and the shaft sleeve part is sleeved on the connecting rod; the pressure release valve is arranged on one side of the rotating block, which is close to the vent hole; the handle rod can drive the two connecting frames to synchronously rotate, and the connecting rods drive the rotating blocks to coaxially rotate, so that the pressure release valve can block or open the vent holes; the torsional spring is arranged at the rotating shaft of the rotating block, and can drive the rotating block to rotate towards the direction close to the vent hole, and the pressure release valve is kept to be in a state of blocking the vent hole.

In some embodiments of the present utility model, the left and right ends of the door panel shell are respectively provided with an arc-shaped travel hole, and the two travel holes are opposite left and right and are both communicated with the installation cavity; the two ends of the connecting rod respectively pass through the travel holes and are connected with the connecting frame; the door panel is characterized in that a buffer cushion block is arranged at the upper end part of the travel hole in the door panel shell, and when the handle rod drives the pressure release valve to open the vent hole, the handle rod can drive the connecting rod to move upwards along the travel hole until the connecting rod abuts against the buffer cushion block.

According to another aspect of the present utility model, there is also provided a refrigerator including: a case configured as a housing outside the refrigerator; the box liner is arranged in the box body, and a refrigeration compartment is formed in the box liner; the vacuum drawer is arranged in the refrigerating compartment, and the vacuum drawer is the vacuum drawer.

As can be seen from the technical scheme, the embodiment of the utility model has at least the following advantages and positive effects:

in the vacuum drawer provided by the embodiment of the utility model, the front side wall of the drawer body is utilized to extend obliquely upwards, and the thickness of the drawer door is matched to be gradually reduced in the direction from bottom to top, so that the volume of the accommodating cavity is further expanded, the volume of the drawer door is reduced, and the available space of the vacuum drawer is increased to a certain extent. Meanwhile, the assembly groove on the front end face of the drawer body is matched with the embedded part on the back side of the drawer door in a clamping mode, the structural strength between the front end of the drawer body and the drawer door is improved, the front end of the drawer body is prevented from deforming in a vacuumizing state, the reliability of the vacuum drawer is improved, and the overall performance of the vacuum drawer is improved.

Drawings

Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present utility model.

Fig. 2 is a schematic view of a part of the structure of the inside of fig. 1.

Fig. 3 is a schematic view of a vacuum drawer according to an embodiment of the present utility model.

Fig. 4 is a side view of fig. 3.

Fig. 5 is an exploded view of fig. 3.

Fig. 6 is a schematic structural view of the drawer body of fig. 5.

Fig. 7 is a schematic view of the drawer body of fig. 6 from another perspective.

Fig. 8 is a cross-sectional view of fig. 6.

Fig. 9 is a schematic view of the structure of the drawer door of fig. 5.

Fig. 10 is an exploded view of the drawer door of fig. 5.

Fig. 11 is another exploded view of the drawer door of fig. 5.

Fig. 12 is a schematic view of the door frame, the locking device and the pressure release device of fig. 11 in another state.

Fig. 13 is a schematic view of the structure of the door frame of fig. 11.

Fig. 14 is a schematic view of the pressure relief device of fig. 11.

Fig. 15 is an exploded view of fig. 14.

Fig. 16 is a schematic structural view of the locking device and the pressure release device in fig. 11.

Fig. 17 is a schematic view of the structure of fig. 16 at another viewing angle.

Fig. 18 is a cross-sectional view of fig. 4.

Fig. 19 is an enlarged schematic view of the area a in fig. 18.

Fig. 20 is a cross-sectional view of fig. 18 in another state.

Fig. 21 is an enlarged schematic view of the area B in fig. 20.

Fig. 22 is a schematic view of the door facing of fig. 11.

Fig. 23 is a schematic view of the structure of the connecting frame and the fixing member in fig. 19.

Fig. 24 is a side view of fig. 23.

The reference numerals are explained as follows: 10. a case; 11. a refrigeration compartment; 12. a tank liner; 13. a door; 14. a drawer frame; 20. a vacuum drawer; 2. a drawer body; 21. a storage chamber; 22. a guide rail; 23. a roller; 24. an assembly groove; 25. a surrounding wall; 251. a clamping protrusion; 26. a first support rib; 27. second support ribs; 3. a drawer door; 31. a door frame; 311. a fitting portion; 3111. a clamping groove; 3112. a first reinforcing rib; 312. a fitting groove; 313. a seal ring; 314. a vent hole; 315. a receiving groove; 316. a second reinforcing rib; 317. a fixing member; 3171. a fixing plate; 3172. a fixing part; 32. a door facing; 321. a travel hole; 322. a fixed block; 323. buffering cushion blocks; 33. a mounting cavity; 4. a pressure relief device; 41. a rotating block; 411. a rotating shaft portion; 412. briquetting; 4121. a clamping groove; 413. a sleeve portion; 42. a pressure release valve; 43. a torsion spring; 51. a connecting frame; 511. a first connecting arm; 512. a second connecting arm; 513. a third connecting arm; 514. an extension arm; 515. a locking part; 52. a handle bar; 53. and a connecting rod.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The existing vacuum drawer generally comprises a drawer body and a drawer door, wherein the drawer door generally adopts a structure with uniform thickness and equal width up and down, and the drawer door of the structure occupies a larger space, so that the unavailable space for storing the refrigerator is additionally increased.

Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present utility model. Fig. 2 is a schematic view of a part of the structure of the inside of fig. 1.

Referring to fig. 1 to 2, a refrigerator according to an embodiment of the present utility model mainly includes a case 10 and a vacuum drawer 20 disposed in the case 10.

Wherein, the box body 10 adopts a cuboid hollow structure. It will be appreciated that the housing 10 may take the form of a hollow shell of other shapes.

A plurality of mutually separated refrigerating compartments 11 can be arranged in the box body 10, and each separated refrigerating compartment 11 can be used as an independent storage space, such as a freezing chamber, a refrigerating chamber, a temperature changing chamber and the like, so as to meet different refrigerating demands of freezing, refrigerating, changing temperature and the like according to different food material types and store. The plurality of refrigeration compartments 11 may be arranged in a vertically spaced apart relationship, or in a laterally spaced apart relationship.

The inside of the box body 10 is provided with a box liner 12, and a refrigerating compartment 11 is formed in the box liner 12. It will be appreciated that a plurality of liners 12 may be disposed within the cabinet 10, with one or more refrigeration compartments 11 being formed within each liner 12.

The front side of the box body 10 is provided with a box door 13, and the box door 13 is used for opening and closing the refrigeration compartment 11. The refrigerator door 13 and the refrigerator body 10 can be connected through a hinge, so that the refrigerator door 13 of the refrigerator can rotate around the axis of the hinge, the refrigerator door 13 is opened and closed, and the corresponding refrigeration compartment 11 is opened and closed. It will be appreciated that the door 13 may be provided in plurality and in one-to-one correspondence with the refrigerating compartments 11. A plurality of doors 13 may simultaneously open and close one refrigerating compartment 11.

A refrigerating assembly (not shown) for supplying cold to the inside of the refrigerator to maintain a low temperature environment of each refrigerating compartment 11 is provided in the cabinet 10. The refrigeration assembly comprises a compressor, a condenser, an evaporator, a throttling device and the like, and the specific structure and connection relation of the refrigeration assembly can refer to the refrigeration assembly in the related art and are not repeated herein.

Referring to fig. 1 and 2, a vacuum drawer 20 is disposed in the case 10 and in the liner 12. Specifically, the inside of the container 12 is provided with a drawer frame 14, the drawer frame 14 is disposed in the refrigerating compartment 11, a drawer cavity (not shown in the figure) with a front opening is formed in the drawer frame 14, the vacuum drawer 20 can be placed into the drawer cavity through the front opening of the drawer cavity, so as to seal the drawer cavity, a sealed space is formed inside the drawer cavity, and a vacuum pumping device (not shown in the figure) such as a vacuum pump is used for vacuumizing, so that a certain vacuum environment is maintained in the vacuum drawer 20.

The internal space of the vacuum drawer 20 is used for storing food materials at low pressure, and food materials can be stored at low temperature.

Fig. 3 is a schematic view of a vacuum drawer 20 according to an embodiment of the present utility model. Fig. 4 is a side view of fig. 3. Fig. 5 is an exploded view of fig. 3.

Referring to fig. 3-5, in some embodiments, the vacuum drawer 20 includes a drawer body 2 and a drawer door 3.

Wherein, drawer body 2 is top surface open-ended rectangle box body structure, is formed with in the drawer body 2 and accomodates the chamber 21, accomodates the chamber 21 and be top open-ended cavity structure, and edible material can be put into accomodate the chamber 21 through the top opening part of accomodating the chamber 21, or takes out the edible material of accomodating in the chamber 21 from the top opening part of accomodating the chamber 21.

The drawer door 3 is disposed at the front end of the drawer body 2, and the drawer door 3 is used for pushing and pulling the drawer body 2, so that the whole vacuum drawer 20 can be pulled in the drawer frame 14. Meanwhile, when the entire vacuum drawer 20 is completely pushed into the drawer frame 14, the drawer door 3 can close the front side opening of the drawer cavity, thereby forming a closed cavity in the drawer frame 14.

Fig. 6 is a schematic structural view of the drawer body 2 of fig. 5. Fig. 7 is a schematic view of the drawer body 2 of fig. 6 from another perspective. Fig. 8 is a cross-sectional view of fig. 6.

Referring to fig. 3 to 8, in some embodiments, rails 22 are provided on both left and right sides of the drawer body 2, respectively, and the rails 22 extend in the front-rear direction of the cabinet 10. While a chute (not shown) may be provided on the inside wall of the drawer cavity or on the side wall of the cabinet 12 that mates with the guide rail 22. The guide rail 22 can slide back and forth in the chute, so that the drawer body 2 can move back and forth in the drawer frame 14 along the chute, and the drawing stability of the vacuum drawer 20 in the drawer frame 14 is improved.

In some embodiments, rollers 23 are respectively disposed on the left and right sides of the drawer body 2, the rollers 23 are disposed at intervals at the rear end of the guide rail 22, and the rollers 23 and the guide rail 22 are located on the same line. Therefore, the roller 23 and the guide rail 22 can slide in the sliding groove simultaneously, the top surface of the roller 23 protrudes out of the top surface of the guide rail 22, the bottom surface of the roller 23 protrudes out of the bottom surface of the guide rail 22, and the roller 23 contacts with the top surface and the bottom surface of the sliding groove to roll, so that the direct contact between the guide rail 22 and the sliding groove can be avoided, the friction between the drawer body 2 and the inner wall of the drawer cavity is reduced, and the vacuum drawer 20 can be smoothly pulled and moved in the drawer frame 14.

Fig. 9 is a schematic view of the structure of the drawer door 3 of fig. 5.

Referring to fig. 3 to 9, in some embodiments, the front end surface of the drawer body 2 is concavely provided with a fitting groove 24. Meanwhile, the rear surface of the drawer door 3 is convexly provided with a fitting portion 311 which is fitted with the fitting groove 24. Therefore, the fitting portion 311 of the drawer door 3 can be fitted into the fitting groove 24 of the drawer body 2, so that the drawer door 3 is fixed to the front end of the drawer body 2, the drawer door 3 and the drawer body 2 are assembled into a whole, the structural strength of the connection between the drawer door 3 and the drawer body 2 is improved, and the front wall of the drawer body 2 is prevented from being deformed in a vacuumized state.

In some embodiments, the profile of the fitting groove 24 is rectangular, and the peripheral side of the fitting groove 24 is formed with a surrounding wall 25, and the surrounding wall 25 is located at the peripheral side edge of the front side wall of the drawer body 2 and protrudes toward the front side of the drawer body 2. Meanwhile, the outline of the fitting portion 311 is rectangular and conforms to the outline shape of the fitting groove 24.

In some embodiments, the back side of the drawer door 3 is concavely provided with a fitting groove 312, and the fitting groove 312 is ring-shaped and is circumferentially arranged at the outer circumference of the fitting portion 311. The peripheral wall 25, which is the peripheral wall of the fitting groove 24, can be fitted and fixed in the fitting groove 312, and the fitting portion 311 can be fitted and fixed in the fitting groove 24, so that the peripheral wall 25 can be inserted and fixed in the drawer door 3, and the structural strength of the connection between the drawer door 3 and the drawer body 2 can be further improved.

Referring to fig. 7 to 9, in some embodiments, the circumferential groove wall of the assembly groove 24 is provided with a convex protrusion 251, and the convex protrusion 251 is located on the inner side wall of the surrounding wall 25. Meanwhile, a locking groove 3111 matching with the locking protrusion 251 is concavely provided on the outer peripheral wall of the fitting portion 311, the locking groove 3111 is located on the groove side wall of the fitting groove 312, and the locking groove 3111 communicates with the fitting groove 312. Therefore, when the peripheral wall of the fitting groove 24 is fitted into the fitting groove 312, the locking projection 251 can be locked and fixed in the locking groove 3111, and the surrounding wall 25 can be locked and fixed in the fitting groove 312.

In some embodiments, two sets of the locking protrusions 251 are provided, and the two sets of the locking protrusions 251 are respectively disposed on two opposite inner sidewalls of the surrounding wall 25, such as inner walls on the upper and lower sides of the surrounding wall 25. Each set of the card projections 251 includes a plurality of spaced apart card projection 251 arrangements. The two sets of clamping protrusions 251 can firmly lock and fix the surrounding wall 25 in the embedded groove 312, so that the connection stability between the drawer door 3 and the drawer body 2 is improved. It should be noted that, in other embodiments, the locking protrusions 251 may be disposed in the inner walls of the left and right sides of the surrounding wall 25, and the positions and the number of the locking protrusions 251 inside the surrounding wall 25 may be adjusted as required, which is not limited herein.

Referring to fig. 3 to 9, in some embodiments, the front side wall of the drawer body 2, that is, the front side wall of the accommodating cavity 21, extends upward and forwards, so that the width of the accommodating cavity 21 gradually increases in the direction from bottom to top, which is favorable for increasing the volume in the accommodating cavity 21, storing more food materials, and increasing the top opening angle of the accommodating cavity 21, which makes it easier for a user to put the food materials into the accommodating cavity 21, and is favorable for increasing the convenience of use of the user.

In some embodiments, the engaging groove 312 at the front end of the drawer body 2 extends obliquely upward toward the front and upward, and at the same time, the engaging portion 311 at the rear side of the drawer door 3 engages with the engaging groove 312 obliquely to extend obliquely upward. Therefore, when the fitting groove 312 and the fitting groove 312 are fitted to each other, it is possible to ensure that the front wall of the drawer body 2 arranged obliquely still has sufficient connection strength, preventing the front wall of the drawer body 2 from being deformed in the vacuumized state.

Referring to fig. 6 to 7, in some embodiments, a first supporting rib 26 extending in a strip shape is protruded on a top surface of a front wall of the drawer body 2, an extending direction of the first supporting rib 26 is consistent with an extending direction of a front side wall of the drawer body 2, and two ends of the first supporting rib 26 extend to left and right side walls of the drawer body 2. The first support rib 26 may improve structural strength of the top region of the front wall of the drawer body 2, further preventing the front wall of the drawer body 2 from being deformed in a vacuumized state.

Referring to fig. 7 to 8, in some embodiments, the bottom surface of the front wall of the drawer body 2 is provided with a second supporting rib 27 extending in a strip shape, and the extending direction of the second supporting rib 27 is consistent with the extending direction of the front wall of the drawer body 2. The second support ribs 27 may be provided in plurality, and the plurality of second support ribs 27 are integrally connected. The second support rib 27 may improve structural strength of the bottom region of the front wall of the drawer body 2, further preventing the front wall of the drawer body 2 from being deformed in a vacuumized state.

Referring to fig. 9, in some embodiments, on the back side of the drawer door 3, the engaging portion 311 is provided with a plurality of first reinforcing ribs 3112 disposed facing the assembly slot 24, the plurality of first reinforcing ribs 3112 are disposed in a staggered manner, and the plurality of first reinforcing ribs 3112 cooperate to reduce the weight of the drawer door 3, ensure that the engaging portion 311 has sufficient mechanical strength, ensure the structural strength of the connection between the drawer door 3 and the drawer body 2, and prevent the front wall of the drawer body 2 from deforming in the vacuumized state.

In some embodiments, a sealing ring 313 is provided at the rear side of the drawer door 3, the sealing ring 313 is ring-shaped, and the sealing ring 313 is circumferentially arranged at the outer circumferential side of the fitting groove 312. When the drawer body 2 is assembled with the drawer door 3 as a unit, that is, the fitting portion 311 is fitted into the fitting groove 312, the seal ring 313 can be circumferentially arranged on the outer periphery of the front end wall of the drawer body 2. And when the vacuum drawer 20 is completely placed in the drawer frame 14 in the refrigerator, the sealing ring 313 can be clamped at the front ports of the drawer door 3 and the drawer frame 14, and the drawer cavity is sealed by the sealing ring 313, so that the vacuum drawer 20 is sealed.

Fig. 10 is a schematic view of an exploded structure of the drawer door 3 of fig. 5. Fig. 11 is a schematic view of another exploded structure of the drawer door 3 of fig. 5.

Referring to fig. 9 to 11, in some embodiments, the drawer door 3 includes a door frame 31 and a door panel 32, the door panel 32 is mounted on a front side of the door frame 31, and a mounting cavity 33 is defined between the door panel 32 and the door frame 31. The fitting portion 311 is formed on the back of the door frame 31, and a vent hole 314 is formed in the fitting portion 311, and the vent hole 314 is communicated with the storage chamber 21 and the installation chamber 33, i.e., the vent hole 314 can be communicated with the storage chamber 21 and the installation chamber 33, and the installation chamber 33 can be communicated with the external space of the drawer door 3. Therefore, when the vacuum drawer 20 needs to be opened, the outside air can enter the accommodating cavity 21 through the mounting cavity 33 and the vent hole 314, and the inside of the accommodating cavity 21 is decompressed, so that the vacuum drawer 20 is released from the vacuum state, and the vacuum drawer 20 is pulled out conveniently.

It should be noted that, in other embodiments, the door frame 31 and the door facing 32 may be integrally formed, and the mounting cavity 33 is formed inside the drawer door 3.

Fig. 12 is a schematic view showing the structure of the door frame 31, the locking device and the pressure release device 4 in fig. 11 in another state.

Referring to fig. 11 to 12, in some embodiments, a pressure relief device 4 is disposed inside the drawer door 3, the pressure relief device 4 is movably disposed in the mounting cavity 33, and the pressure relief device 4 is used to open or close the vent 314. When the pressure relief device 4 closes the vent 314, the vacuum drawer 20 may cooperate with the drawer frame 14 to form a sealed space to facilitate a vacuum operation. When the vent 314 is opened by the pressure relief device 4, outside air can enter the vacuum drawer 20 to relieve pressure in the vacuum drawer 20.

Fig. 13 is a schematic structural view of the door frame 31 of fig. 11.

Referring to fig. 11 to 13, in some embodiments, a front side of the door frame 31 is concavely provided with a receiving groove 315, the receiving groove 315 communicates with the mounting cavity 33, and the vent 314 is formed on a groove surface of the receiving groove 315. Accordingly, the vent hole 314 may communicate with the installation cavity 33 through the receiving groove 315, thereby communicating with the external space of the drawer door 3. Meanwhile, the pressure relief device 4 can be installed in the accommodating groove 315, so that the pressure relief device 4 has enough space to move in the drawer door 3, and further the vent 314 is opened and closed.

Referring to fig. 11 to 13, in some embodiments, the front side of the door frame 31 is convexly provided with second reinforcing ribs 316 disposed facing the mounting cavity 33, and the second reinforcing ribs 316 are disposed in a plurality of staggered manner; the second reinforcing ribs 316 are located inside the installation cavity 33 and distributed on the circumferential side of the receiving groove 315. The cooperation of the plurality of second reinforcing ribs 316 can not only reduce the weight of the drawer door 3, but also ensure that the installation cavity 33 has sufficient mechanical strength, and simultaneously ensure the structural strength of the connection between the drawer door 3 and the drawer body 2, and prevent the front wall of the drawer body 2 from deforming in a vacuumized state.

In some embodiments, the pressure relief device 4 is rotatably disposed in the accommodating groove 315, one end of the pressure relief device 4 is rotatably connected to a groove sidewall of the accommodating groove 315, and the other end of the pressure relief device 4 is connected to a locking device, which is used for driving the pressure relief device 4 to rotate in the drawer door 3, so that the vent 314 can be plugged or opened by the pressure relief device 4.

Fig. 14 is a schematic view of the pressure relief device 4 in fig. 11. Fig. 15 is an exploded view of fig. 14.

Referring to fig. 11-15, in some embodiments, the pressure relief device 4 includes a rotating block 41, a pressure relief valve 42, and a torsion spring 43. The top edge of the rotating block 41 is formed with a rotating shaft portion 411, the rotating shaft portion 411 extends in the transverse direction, two ends of the rotating shaft portion 411 are respectively connected to the left and right groove side walls of the accommodating groove 315 in a rotating mode, and the rotating block 41 can rotate around the axis of the rotating shaft portion 411. While the rotation shaft portion 411 is located in an upper side region of the ventilation hole 314, and therefore, the rotation block 41 can be rotatably connected to an inner wall of the drawer door 3 at an upper side of the ventilation hole 314 by the rotation shaft portion 411.

In some embodiments, a relief valve 42 is provided at the bottom of the rotating block 41 and is disposed facing the vent hole 314. Under the gravity action of the rotating block 41, the rotating block 41 can rotate downwards, so that the pressure release valve 42 approaches to and seals the vent 314, and the vacuum drawer 20 is sealed.

In some embodiments, the torsion spring 43 is disposed at one axial end of the rotating shaft 411, one end of the torsion spring 43 abuts against the rotating block 41, and the other end of the torsion spring 43 abuts against the inner wall of the drawer body 2. Meanwhile, the relief valve 42 is located at a bottom region of the same end of the rotating block 41, that is, the torsion spring 43 and the relief valve 42 are located at the same end of the rotating block 41, and the relief valve 42 is disposed on the lower side of the torsion spring 43 in a facing manner. Therefore, the torsion spring force of the torsion spring 43 can be transmitted to the pressure release valve 42 through the rotating block 41, so that the pressure release valve 42 is well stressed and is tightly fixed on the vent hole 314, the vent hole 314 is tightly sealed, and the tightness and reliability of the vacuum drawer 20 are effectively improved.

In some embodiments, a pressing block 412 is protruding from a side of the bottom of the rotating block 41 facing the vent 314, a clamping groove 4121 is formed on the pressing block 412, and the pressure release valve 42 is detachably fixed in the clamping groove 4121. And when the relief valve 42 is mounted on the press block 412, the relief valve 42 is protruded on a side of the press block 412 facing the vent hole 314. It should be noted that, the pressing block 412 is located at the end of the torsion spring 43 of the rotating block 41, so the pressure release valve 42 and the torsion spring 43 may be located at the same end of the rotating block 41, and the torsion spring 43 and the pressure release valve 42 are disposed opposite to each other vertically.

Fig. 16 is a schematic structural view of the locking device and the pressure release device 4 in fig. 11. Fig. 17 is a schematic view of the structure of fig. 16 at another viewing angle.

Referring to fig. 10 to 17, in some embodiments, a locking device is provided on the drawer door 3, and the locking device is used to drive the pressure release device 4 to rotate, so as to actively open or close the vent 314.

In some embodiments, the locking device includes a connector bracket 51, a handle bar 52, and a link 53. Wherein, the two connecting frames 51 are respectively connected to the left and right sides of the door frame 31 of the drawer door 3 along the same axis in a rotating way.

The handle lever 52 is provided on the front side of the door panel 32 of the drawer door 3, the handle lever 52 extends in the lateral direction, and both ends of the handle lever 52 are respectively connected to a connection frame 51. The handle lever 52 can drive the two link frames 51 to rotate synchronously.

The connecting rod 53 movably penetrates through the installation cavity 33, two ends of the connecting rod 53 extend out of the left side and the right side of the drawer door 3 respectively, two ends of the connecting rod 53 are connected with a connecting frame 51 respectively, and the connecting rod 53 and the handle rod 52 are arranged in parallel. When the handle lever 52 drives the two link frames 51 to rotate synchronously, the two link frames 51 can drive the link 53 to rotate synchronously.

In some embodiments, a boss 413 is formed at a side edge of the rotation block 41 away from the rotation shaft 411, the boss 413 is formed at a bottom edge of the rotation block 41, the pressure block 412 and the pressure release valve 42 are provided at a side of the boss 413 facing the vent 314, and the pressure block 412 and the pressure release valve 42 are located at an end of the boss 413 near the torsion spring 43. The shaft sleeve 413 is sleeved on the connecting rod 53, so that the connecting rod 53 can drive the rotating block 41 to rotate synchronously, and the rotating shaft of the connecting frame 51 and the rotating shaft 411 of the rotating block 41 are coaxially arranged. Therefore, the handle 52 can drive the two connecting frames 51 to rotate synchronously, and the connecting rod 53 drives the rotating block 41 to rotate coaxially, so that the pressure release valve 42 can seal or open the vent 314.

Fig. 18 is a cross-sectional view of fig. 4. Fig. 19 is an enlarged schematic view of the area a in fig. 18. Fig. 20 is a cross-sectional view of fig. 18 in another state. Fig. 21 is an enlarged schematic view of the area B in fig. 20.

Referring to fig. 18 to 21, when the handle 52 is lifted up, the handle 52 can drive the two connecting frames 51 to rotate upwards, and then drive the connecting rod 53 to move upwards, and the connecting rod 53 can drive the rotating block 41 to rotate upwards, so that the pressure release valve 42 is far away from the air vent 314, at this time the air vent 314 is opened, and the inside of the vacuum drawer 20 is depressurized, as shown in fig. 21.

When the handle 52 is released, the torsion force of the torsion spring 43 and the gravity of the pressure release device 4 and the locking device break the rotating block to rotate downwards, so that the pressure release valve 42 approaches to and seals the vent 314, at this time, the vent 314 is closed, the pressure release valve 42 can compress and seal the vent 314, the inside of the vacuum drawer 20 is sealed, and the vacuum drawer 20 can be evacuated, as shown in fig. 19. Meanwhile, the rotating block 41 can drive the connecting rod 53 to move downwards, and the connecting rod 53 drives the two connecting frames 51 to rotate downwards, so that the handle rod 52 is driven to move downwards for resetting.

Fig. 22 is a schematic view of the structure of the door facing 32 of fig. 11.

Referring to fig. 10 to 22, in some embodiments, a curved travel hole 321 is formed at the left and right ends of the door facing 32, the two travel holes 321 are disposed opposite to each other, and the two travel holes 321 are all communicated with the mounting cavity 33. The installation cavity 33 may communicate with the external space of the drawer door 3 through the stroke hole 321. Meanwhile, both ends of the link 53 are respectively connected to a connection frame 51 through a stroke hole 321. When the link 53 rotates with the link frame 51 or with the rotating block, the link 53 can reciprocate within the stroke hole 321.

Referring to fig. 19 to 22, in some embodiments, a fixing block 322 is disposed at an upper end of the travel hole 321 in the door panel 32, and a cushion block 323 is disposed on a bottom surface of the fixing block 322. When the handle rod 52 drives the pressure release valve 42 to open the vent 314, the handle rod 52 can drive the connecting rod 53 to move upwards along the travel hole 321 until the connecting rod 53 abuts against the buffer cushion block 323, as shown in fig. 21, so that the collision between the connecting rod 53 and the door facing 32 is effectively prevented.

Referring to fig. 3 to 22, in some embodiments, the thickness of the drawer door 3 is gradually reduced in a bottom-to-top direction, and the front side of the drawer door 3 is a vertical surface, so that the top area of the back side of the drawer door 3 can be configured to be a relief for the front wall of the drawer body 2. The front wall of the drawer body 2 extends obliquely forward and upward, and the rear side wall of the drawer door 3 also extends obliquely upward, so that the volume of the accommodating cavity is expanded, the volume of the drawer door 3 is reduced, and the available space of the vacuum drawer 20 can be increased to a certain extent.

In some embodiments, the door frame 31 extends obliquely upward in a direction approaching the door facing 32, and the front side of the door facing 32 is a vertical surface, so that when the door frame 31 and the door facing 32 are assembled as a whole, the distance between the front side wall of the door frame 31 and the front wall of the door facing 32 becomes gradually smaller in the bottom-to-top direction, i.e., the thickness of the installation cavity 33 becomes gradually smaller in the bottom-to-top direction.

It should be noted that, when the door frame 31 is arranged obliquely, the rotation shaft portion 411 of the rotation block 41 in the accommodation groove 315 may be located obliquely above the ventilation hole 314, specifically, the rotation shaft portion 411 is located above the front side of the ventilation hole 314. Therefore, the distance between the rotation shaft 411 and the link 53 can be appropriately shortened, and the rotation stroke of the rotation block 41 can be shortened, so that the air release valve can stably open or close the vent 314. Therefore, the distance between the rotating shaft of the connecting frame 51 and the connecting rod 53 can be shortened, the rotating stroke of the connecting frame 51 can be further reduced, the size of the connecting frame 51 can be shortened, and the manufacturing cost can be reduced.

Fig. 23 is a schematic view of the structure of the connecting frame 51 and the fixing member 317 in fig. 19. Fig. 24 is a side view of fig. 23.

Referring to fig. 10 to 15, and referring to fig. 23 and 24, in some embodiments, a fixing member 317 is provided on each of the left and right sides of the door frame 31, and the fixing member 317 is configured to be rotatably connected to the connecting frame 51. The fixing member 317 includes a fixing plate 3171 and a fixing portion 3172 bent and extended backward from one side of the fixing plate 3171. The fixing plate 3171 is fixed to a front side wall of an end portion of the door frame 31, the fixing portion 3172 protrudes from the end portion of the door frame 31 and is exposed to the door facing 32, and the coupling frame 51 is rotatably coupled to the exposed fixing portion 3172.

In some embodiments, the fixing plates 3171 are disposed in an inclined manner, and the fixing plates 3171 are fixed to the front sidewall surface of the door frame 31 disposed obliquely upward. Specifically, when the door frame 31 is arranged to extend obliquely upward in a direction approaching the door facing 32, the front side wall of the door frame 31 is arranged to extend obliquely upward, and therefore, the obliquely arranged fixing plate 3171 can be fitted and fixed to the front side wall surface of the door frame 31 well. At the same time, the fixing portion 3172 can be moved forward, shortening the distance between the rotation axis of the link 51 and the link 53.

Referring to fig. 23 and 24, and referring to fig. 16 and 17, in some embodiments, the connecting frame 51 has a plate structure, and the connecting frame 51 includes a first connecting arm 511, a second connecting arm 512, a third connecting arm 513, and an extension arm 514 that are integrally connected.

Specifically, the first connecting arm 511, the second connecting arm 512, and the third connecting arm 513 have a triangular connection structure. The first connection arm 511 extends laterally in the front-rear direction of the drawer body 2. The second connection arm 512 extends obliquely downward from the front end of the first connection arm 511 and gradually approaches the rear end of the first connection arm 511. The third connecting arm 513 extends obliquely downward from the rear end of the first connecting arm 511 and gradually approaches the front end of the first connecting arm 511. Meanwhile, the lower end of the second connecting arm 512 is connected with the lower end of the third connecting arm 513, so that the first connecting arm 511, the second connecting arm 512 and the third connecting arm 513 are connected in a triangular shape, and a triangular hollow area is formed among the first connecting arm 511, the second connecting arm 512 and the third connecting arm 513, so that the processing is facilitated, the material consumption of the connecting frame 51 is reduced, and the cost is reduced.

Wherein the first connecting arm 511 is rotatably connected to the fixing portion 3172, that is, the first connecting arm 511 is rotatably connected to the end of the drawer door 3. The second connecting arm 512 is connected to an end of the link 53. The extension arm 514 is bent and extended upward from the front side of the drawer door 3 at the junction of the second connection arm 512 and the third connection arm 513, and the extension arm 514 is connected to the end of the handle lever 52. Therefore, when the handle 52 moves up or down, the handle 52 can drive the first connecting arm 511, the second connecting arm 512 and the third connecting arm 513 to rotate synchronously through the extension arm 514, and drive the connecting rod 53 to move up and down synchronously through the second connecting arm 512, so as to drive the pressure release device 4 to rotate and drive the pressure release valve 42 to open or close the vent 314.

In some embodiments, the connection between the first connecting arm 511 and the third connecting arm 513 is provided with a locking portion 515 in a protruding manner, and the locking portion 515 is used for being clamped with the inside of the drawer frame 14, so that the vacuum drawer 20 can be locked and fixed inside the drawer frame 14. Specifically, when the handle is moved downward and the vent hole 314 is closed by the relief valve 42, the locking portion 515 can move upward along with the rotation of the connection frame 51, and then is clamped inside the drawer frame 14, so that the vacuum drawer 20 can be fixed inside the drawer frame 14 through the locking device, and the state that the relief valve 42 compresses and seals the vent hole 314 is maintained.

Based on the technical scheme, the embodiment of the utility model has the following advantages and positive effects:

in the vacuum drawer 20 of the embodiment of the utility model, the front side wall of the drawer body 2 is utilized to extend obliquely upwards, and the thickness of the drawer door 3 is matched to be gradually reduced in the direction from bottom to top, so that the volume of the accommodating cavity is further expanded, the volume of the drawer door 3 is reduced, and the available space of the vacuum drawer 20 is increased to a certain extent. Meanwhile, the assembly groove 24 on the front end surface of the drawer body 2 is matched with the embedded part 311 on the back side of the drawer door 3 in a clamping way, so that the structural strength between the front end of the drawer body 2 and the drawer door 3 is improved, the front end of the drawer body 2 is prevented from deforming in a vacuumizing state, the reliability of the vacuum drawer 20 is improved, and the overall performance of the vacuum drawer 20 is further improved.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A vacuum drawer, comprising:

the drawer body is internally provided with a containing cavity with an opening at the top, and the front end surface of the drawer body is concavely provided with an assembly groove;

the drawer door is arranged on the front side of the drawer body, and the back surface of the drawer door is convexly provided with an embedded part matched with the assembly groove;

the front side wall of the accommodating cavity extends forwards and upwards obliquely upwards, so that the width of the accommodating cavity is gradually increased in the direction from bottom to top;

the thickness of the drawer door gradually decreases from bottom to top, and the embedded part can be embedded in the assembly groove, so that the drawer door is fixed at the front end of the drawer body.

2. The vacuum drawer as recited in claim 1, wherein the top surface of the front side wall of the drawer body is provided with a first supporting rib extending in a strip shape in a protruding manner, and the extending direction of the first supporting rib is consistent with the extending direction of the front side wall of the drawer body;

and/or the bottom surface of the front side wall of the drawer body is convexly provided with a second supporting rib which extends in a strip shape, and the extending direction of the second supporting rib is consistent with the extending direction of the front side wall of the drawer body.

3. The vacuum drawer as recited in claim 1, wherein a fitting groove is concavely provided on a rear surface of the drawer door, the fitting groove being ring-shaped and being circumferentially arranged at an outer periphery of the fitting portion;

the peripheral side groove wall of the fitting groove is capable of being fitted and fixed in the fitting groove so that the fitting portion is capable of being fitted and fixed in the fitting groove.

4. The vacuum drawer as claimed in claim 3, wherein a catching protrusion is protruded on a wall of the peripheral side of the fitting groove, and a catching groove matched with the catching protrusion is concavely provided on an outer peripheral wall of the fitting part;

when the peripheral groove wall of the assembly groove is embedded in the embedded groove, the clamping protrusion can be clamped and fixed in the clamping groove.

5. A vacuum drawer according to claim 3, wherein the fitting portion is provided therein with a plurality of reinforcing ribs disposed facing the fitting groove, and a plurality of the reinforcing ribs are disposed in a staggered manner.

6. The vacuum drawer of claim 1, wherein a vent is provided in the fitting portion, the vent being in communication with the receiving cavity;

the vacuum drawer further comprises a pressure relief device which is movably arranged in the drawer door and used for opening and closing the vent hole.

7. The vacuum drawer of claim 6, wherein the drawer door comprises a door frame and a door facing; the door panel shell is arranged at the front side of the door frame, an installation cavity is enclosed between the door panel shell and the door frame,

the door frame extends obliquely upwards in a direction approaching to the door panel, and the front side surface of the door panel is a vertical surface, so that the thickness of the mounting cavity is gradually reduced in the direction from bottom to top;

the front side surface of the door frame is concavely provided with a containing groove communicated with the mounting cavity;

the vent hole is formed in the accommodating groove, the pressure relief device is movably arranged in the accommodating groove, and the embedded part is formed at the back of the door frame.

8. The vacuum drawer of claim 7, further comprising a locking device comprising a connector bracket, a handle bar, a linkage;

the two connecting frames are respectively connected to the left side and the right side of the door frame in a rotating way along the same axis;

the handle rod is arranged on the front side of the door panel shell in a transversely extending manner, and two ends of the handle rod are respectively connected with one connecting frame;

the connecting rod movably penetrates through the mounting cavity, and two ends of the connecting rod extend out of the left side and the right side of the door frame respectively and are connected with the connecting frame respectively;

the pressure relief device comprises a rotating block, a pressure relief valve and a torsion spring;

the rotating block is rotatably connected to the groove wall of the accommodating groove and is positioned on the upper side of the vent hole, and the rotating shaft of the rotating block is coaxial with the rotating shaft of the connecting frame; a shaft sleeve part is formed at one end of the rotating block, which is far away from the rotating shaft, and the shaft sleeve part is sleeved on the connecting rod;

the pressure release valve is arranged on one side of the rotating block, which is close to the vent hole;

the handle rod can drive the two connecting frames to synchronously rotate, and the connecting rods drive the rotating blocks to coaxially rotate, so that the pressure release valve can block or open the vent holes;

the torsional spring is arranged at the rotating shaft of the rotating block, and can drive the rotating block to rotate towards the direction close to the vent hole, and the pressure release valve is kept to be in a state of blocking the vent hole.

9. The vacuum drawer as recited in claim 8, wherein the door facing has a curved travel hole at each of the left and right ends, the travel holes being opposite left and right and communicating with the mounting cavity;

the two ends of the connecting rod respectively pass through the travel holes and are connected with the connecting frame;

a buffer cushion block is arranged at the upper end part of the travel hole in the door panel shell,

when the handle rod drives the pressure release valve to open the vent hole, the handle rod can drive the connecting rod to move upwards along the travel hole until the connecting rod abuts against the buffer cushion block.

10. A refrigerator, comprising:

a case configured as a housing outside the refrigerator;

the box liner is arranged in the box body, and a refrigeration compartment is formed in the box liner;

a vacuum drawer provided in the cooling compartment, the vacuum drawer according to any one of claims 1 to 9 being used.