CN113959152A

CN113959152A - Refrigeration device

Info

Publication number: CN113959152A
Application number: CN202110833092.1A
Authority: CN
Inventors: 王美艳; 张向平; 李亚婧; 刘恒友
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-01-21
Anticipated expiration: 2041-07-22
Also published as: CN113959152B

Abstract

The invention relates to refrigeration equipment which comprises a box body, a door body, a vacuum joint, a vacuumizing device, a coil pipe wheel, a resetting piece and a vacuum pipeline, wherein the door body is arranged on the box body; the vacuum joint is arranged in the door body and can extend out of the door body; the coil pipe wheel is rotatably arranged in the door body; the reset piece drives the coil wheel to rotate and reset; the vacuum pipeline is wound on the coil pipe wheel and communicated with the vacuum joint and the vacuumizing device; the vacuum joint can drive the vacuum pipeline to extend out of the door body and drive the coil wheel to rotate in the forward direction, so that the coil wheel is unreeled; the reset piece can drive the coil wheel to rotate reversely, so that the vacuum pipeline is wound on the coil wheel and retracts into the door body. When needing evacuation, can carry out the evacuation with vacuum line pull out door body, easy operation. After the operation finishes, utilize the piece that resets to make the coil pipe wheel reverse rotation, make the vacuum line again around rolling up on the coil pipe wheel to in retracting to the door body, deposit the convenience, be favorable to promoting the convenience of user's vacuum fresh-keeping operation.

Description

Refrigeration device

Technical Field

The invention relates to the technical field of vacuum preservation, in particular to refrigeration equipment.

Background

With the increasing demand of people on food health, the demand of people on the fresh-keeping capacity of refrigeration equipment such as refrigerators and freezers is higher and higher. The vacuum preservation technology applied to the refrigeration equipment mainly comprises a vacuum drawer arranged in the refrigeration equipment, and the vacuum drawer or the sealed preservation box is vacuumized through a vacuumizing module, so that the food materials in the drawer and the preservation box are preserved.

At present, the vacuum joint position of the vacuum pumping device applied to the refrigeration equipment is basically fixed. When the vacuum preservation box is used for vacuumizing operation relative to the vacuum preservation box, an external pipeline is generally required to be connected, and the use is convenient for users. And the external pipeline is used as a functional accessory, and the storage of the pipeline also brings inconvenience to the user.

Disclosure of Invention

The invention aims to provide refrigeration equipment so as to optimize the structures of refrigeration equipment such as refrigerators, freezers and the like in the prior art and improve the convenience of vacuum refreshing operation for users.

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

according to one aspect of the present invention, there is provided a refrigeration apparatus comprising: a box body, wherein a refrigeration chamber is arranged in the box body; the door body is arranged on the front side of the box body and used for opening and closing the refrigerating chamber; the vacuum joint is movably arranged on the door body and can extend out of the door body; the vacuumizing device is arranged in the door body and is used for vacuumizing; the coil pipe wheel is rotatably arranged in the door body; the resetting piece is connected with the coil pipe wheel and is used for driving the coil pipe wheel to rotate and reset; the vacuum pipeline is wound on the coil pipe wheel, one end of the vacuum pipeline is connected with the vacuum joint, and the other end of the vacuum pipeline is connected with the vacuumizing device; the vacuum joint can drive a vacuum pipeline to extend out of the door body and drive the coil pipe wheel to rotate positively along a first direction, so that the vacuum pipeline is unreeled on the coil pipe wheel; the reset piece can drive the coil pipe wheel to rotate reversely in a second direction, so that the vacuum pipeline is wound on the coil pipe wheel again, and the vacuum pipeline is retracted into the door body.

In some embodiments of the present application, the refrigeration appliance further comprises a locking mechanism; the locking mechanism is arranged in the door body and arranged on the periphery of the coil pipe wheel; the locking mechanism can abut against the coil pipe wheel to limit the coil pipe wheel to reversely rotate along a second direction and keep the length of the vacuum pipeline extending out of the door body; the locking mechanism can also be disengaged from the coil wheel to enable the coil wheel to counter-rotate in a second direction and enable the vacuum line to retract into the door body.

In some embodiments of the present application, the locking mechanism includes a stopper arm and a tension spring; the stop arms are arranged on the periphery of the coil pipe wheel and hinged on the door body; the tension spring is positioned on one side, far away from the coil pipe wheel, of the stop arm, one end of the tension spring is connected with the door body, and the other end of the tension spring is connected with one end of the stop arm; the tension spring drives the other end of the stopping arm to face the coil pipe wheel, so that the stopping arm can abut against the coil pipe wheel.

According to some embodiments of the application, a fixed shaft is arranged on one side, away from the coil pipe wheel, of the stop arm in the door body, and one end, away from the stop arm, of the tension spring is connected with the fixed shaft; the fixed shaft, the hinged shaft of the stop arm and the axis of the coil pipe wheel are positioned on the same straight line; the other end of the stopping arm is driven by the tension spring to face the axis of the coil pipe wheel.

In some embodiments of the present application, the periphery of the coil wheel is provided with a plurality of gear areas arranged at intervals; a concave area is formed in the interval between the adjacent gear areas, and the stop arm can extend into the concave area; when the coil pipe wheel rotates forwards along a first direction, the gear area can push the stop arm open, so that the coil pipe wheel can rotate freely; when the coil wheel reversely rotates along a second direction, the stop arm can be clamped in the gear area to limit the reverse rotation of the coil wheel; when the stop arm extends into the recessed area, the stop arm can be separated from the gear area.

In some embodiments of the present application, a plurality of tooth sockets that encircle that circumference of coil pipe wheel is continuous arrangement are formed in the gear district, the tooth socket can with backstop arm block, in order to prevent coil pipe wheel is along second direction counter-rotation.

According to some embodiments of the application, the refrigeration equipment further comprises a mounting box, the mounting box is arranged in the door body, a mounting groove is concavely arranged in the mounting box, and a mandrel is arranged at the center of the mounting groove; the coil pipe wheel is arranged in the mounting groove and is rotatably sleeved on the mandrel.

In some embodiments of the present application, an accommodating groove is concavely disposed at an axis of the coil wheel, and the spindle is located at a center of the accommodating groove; the reset piece is a coil spring which is arranged in the accommodating groove and surrounds the mandrel; the inner end of the coil spring is fixed on the mandrel, and the outer end of the coil spring is fixed on the inner wall of the containing groove.

In some embodiments of the present application, the refrigeration device further comprises a fixing plate; the fixing plate is fixed at the notch of the accommodating groove and limits the coil spring in the accommodating groove; the center of the fixed plate is provided with a through hole, and the fixed plate is rotatably sleeved on the mandrel through the through hole.

In some embodiments of the present application, the refrigeration equipment further comprises a cover plate covering the installation groove to cover the coil wheel in the installation groove; the vacuum pipeline comprises a pipeline joint, a connecting pipe and a drawing pipe; the pipeline joint is used for communicating the pull pipe with the connecting pipe, the pipeline joint comprises a switching part and a rotating shaft part which are connected in a relative rotation mode, the switching part is arranged in the center of the cover plate, and the rotating shaft part is arranged at the axis of the coil pipe wheel and is arranged coaxially with the core shaft; one end of the connecting pipe is connected with the switching part, and the other end of the connecting pipe is connected with the vacuumizing device; the drawing pipe is wound on the coil pipe wheel along the circumferential direction, the inner end of the drawing pipe is communicated with the rotating shaft part, and the outer end of the drawing pipe is communicated with the vacuum joint.

According to the technical scheme, the embodiment of the invention at least has the following advantages and positive effects:

in the refrigeration equipment provided by the embodiment of the invention, the vacuum joint, the vacuum pumping device and the vacuum pipeline which are arranged in the door body are matched to realize the vacuum pumping function. Meanwhile, the coil wheel arranged in the door body is utilized to wind the vacuum pipeline on the coil wheel. When the sealed container outside the door body needs to be vacuumized, the vacuum joint and the vacuum pipeline are pulled and extend out of the door body for vacuumizing. After the vacuumizing operation is finished, the coil wheel is reversely rotated by the reset piece, so that the vacuum pipeline is wound on the coil wheel again, and the vacuum joint and the vacuum pipeline retract into the door body. The vacuum fresh-keeping device is simple to operate, convenient to store without the help of an external pipeline, and beneficial to improving the convenience of vacuum fresh-keeping operation of a user.

Drawings

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

Fig. 2 is a partial structural schematic view of fig. 1, in which the vacuum connector is in a state of being extended out of the door body.

Fig. 3 is an exploded view of the door body of fig. 2.

Fig. 4 is a schematic view of the structure in the mounting box of fig. 3.

Fig. 5 is an exploded view of fig. 4.

Fig. 6 is another exploded view of fig. 4.

Fig. 7 is a schematic view of the structure of the vacuum line of fig. 4.

Fig. 8 is an exploded view of the coil wheel, vacuum line, vacuum fitting and cover plate of fig. 4.

Fig. 9 is a schematic diagram of the structure of the coil wheel of fig. 8.

Fig. 10 is a structural entity diagram of fig. 9 from another perspective.

Fig. 11 is an assembled view of the coil spring and coil wheel of fig. 9.

Fig. 12 is a schematic cross-sectional view of fig. 4.

Fig. 13 is a schematic view of the assembly of the vacuum line and the coil wheel of fig. 5.

Fig. 14 is a schematic structural view of the coil wheel in fig. 4 in a locked state.

Fig. 15 is a schematic structural view of the locking assembly of fig. 14.

Fig. 16 is a schematic view of the coil wheel of fig. 14 rotated in a first direction.

FIG. 17 is a schematic view of the stop arm of FIG. 16 extending into a recessed area.

Fig. 18 is a structural view illustrating the reverse rotation of the coil wheel in fig. 17 in the second direction.

Figure 19 is a partial cross-sectional view of the coil wheel and cover plate of figure 5.

Fig. 20 is a schematic view of the damper of fig. 19.

The reference numerals are explained below: 1. a box body; 11. a door body; 12. mounting a box; 121. a first mounting location; 122. a second mounting location; 123. mounting grooves; 124. a mandrel; 125. an outlet tank; 126. a surrounding wall; 1261. a notch portion; 13. a panel; 131. an opening; 14. a cover plate; 141. a through hole; 142. wiring grooves; 21. a vacuum pump; 211. a rubber sleeve; 212. a fixed cover; 22. a vacuum line; 221. a connecting pipe; 222. a pipe joint; 2221. a switching part; 2222. a rotating shaft part; 223. a pull tube; 23. a vacuum joint; 3. a pipe coiling wheel; 301. a gear area; 302. a recessed region; 31. a winding slot; 32. an accommodating groove; 33. a fixing plate; 331. perforating; 34. a containing groove; 35. a wire passing hole; 36. a ring gear; 4. a reset member; 5. a locking mechanism; 51. a stopper arm; 511. an arc-shaped portion; 52. a tension spring; 53. a fixed shaft; 6. a damper.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it is to 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," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.

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

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The refrigeration equipment of the embodiment of the invention can be a refrigeration cabinet body such as a refrigerator, a hall bar cabinet and the like, and the refrigerator is taken as an example to explain the structural principle of the refrigeration equipment of the embodiment of the invention in detail.

For convenience of description, unless otherwise specified, the directions of the upper, lower, left, right, front and rear are all referred to herein as the state of the refrigerator in use, and the door of the refrigerator is front and the opposite direction is rear.

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention. Fig. 2 is a partial structural view of fig. 1, in which the vacuum connector 23 is in a state of being protruded out of the door body 11.

Referring to fig. 1 and 2, a refrigerator according to an embodiment of the present invention mainly includes a refrigerator body 1, a door 11, and a vacuum-pumping module.

The case 1 has a rectangular parallelepiped structure. A plurality of mutually separated refrigerating compartments can be arranged in the box body 1, and each separated refrigerating compartment can be used as an independent storage space, such as a freezing compartment, a refrigerating compartment, a temperature changing compartment and the like, so that different refrigerating requirements such as freezing, refrigerating and temperature changing can be met according to different food types, and the storage can be carried out. The multiple refrigerating compartments can be arranged in a vertically separated manner or in a horizontally separated manner.

The door body 11 is arranged on the front side of the box body 1 and used for opening and closing the refrigerating chamber. The door body 11 and the refrigerator body 1 can be connected through a hinge, so that the door body 11 of the refrigerator can rotate around the axis of the hinge, the door body 11 of the refrigerator is opened and closed, and the corresponding refrigerating chamber is opened and closed. It can be understood that a plurality of door bodies 11 can be arranged, and the door bodies are arranged corresponding to the refrigeration compartments one by one. One door body 11 can also open and close a plurality of refrigerating compartments at the same time.

In some embodiments, a sealed drawer is provided in the refrigeration compartment, or a removable sealed box is provided in the refrigeration compartment. The sealing drawer and the sealing box body can be used for sealing and storing food materials independently.

The vacuumizing module is arranged in the door body 11, can extend out of the door body 11 and is used for vacuumizing a sealing drawer and a sealing box body in the refrigerating chamber and also can vacuumize a sealing bag outside the refrigerator.

Fig. 3 is an exploded view of the door 11 of fig. 2. Fig. 4 is a schematic view of the structure inside the mounting box 12 in fig. 3. Fig. 5 is an exploded view of fig. 4. Fig. 6 is another exploded view of fig. 4.

Referring to fig. 2 to 6, in some embodiments, a mounting box 12 is disposed in the door 11, and the mounting box 12 is used for providing a mounting space for the vacuum module.

Referring to fig. 3, the door 11 is further provided with a panel 13, and the panel 13 is used for covering the mounting box 12 to enclose the vacuum-pumping module in the mounting box 12. The panel 13 is flush with the surface of the door body 11 to maintain the integrity and aesthetics of the exterior surface of the door body 11. The panel 13 is provided with an opening 131, and the vacuum module can extend out of the opening 131 or retract into the opening 131.

Fig. 7 is a schematic diagram of the structure of the vacuum line 22 in fig. 4. Fig. 8 is an exploded schematic view of the coil wheel 3, vacuum line 22, vacuum fitting 23 and cover plate 14 of fig. 4.

Referring to fig. 3 to 8, the vacuum module according to the embodiment of the present invention mainly includes a vacuum device, a vacuum pipeline 22, a vacuum joint 23, a coil wheel 3, a reset member 4, a locking mechanism 5, and a damper 6.

Wherein the vacuum pumping device adopts a vacuum pump 21. The vacuum pump 21 is connected to the vacuum connector 23 through the vacuum pipeline 22, so that the vacuum pump 21 can perform a vacuum pumping function through the vacuum pipeline 22 and the vacuum connector 23. It will be understood that other evacuation devices may be used, and evacuation is performed through the vacuum line 22 and the vacuum connector 23.

The vacuum pump 21 is disposed in the mounting box 12, and a first mounting position 121 is recessed in the mounting box 12. The vacuum pump 21 is fixed in the first mounting position 121, so that the vacuum pump 21 can be quickly and stably fixed in the mounting box 12.

Referring to fig. 6, in some embodiments, the vacuum module further includes a rubber cover 211 and a fixing cover 212. The rubber cover 211 may be made of a flexible material such as rubber. The rubber cover 211 is annular and is fitted over the peripheral wall of the vacuum pump 21. The rubber cover 211 can be embedded in the first mounting position 121 and provides a shock-absorbing and buffering function for the vacuum pump 21. The fixing cover 212 is connected to the inner wall of the mounting box 12, and fixed in the mounting box 12 by bolts or screws, so as to clamp and fix the vacuum pump 21 in the first mounting position 121. It is understood that the rubber cover 211 may be clamped between the vacuum pump 21 and the fixing cover 212 and between the vacuum pump 21 and the inner wall of the first mounting location 121.

Referring to fig. 2 to 6, the vacuum connector 23 is disposed in the mounting box 12 and located inside the opening 131 of the panel 13. The vacuum connector 23 can extend out of the opening 131 of the panel 13 to be in butt joint with the sealed drawer, the sealed box body and the sealed bag, and further, the vacuum pump 21 and the vacuum pipeline 22 are used for pumping the gas in the corresponding sealed container, so that a vacuum low-pressure storage environment is formed inside the sealed container.

Referring to fig. 5 and 6, in some embodiments, the mounting box 12 is recessed with a second mounting location 122 for receiving the vacuum connector 23. The second mounting location 122 is aligned with the opening 131 in the panel 13, and the vacuum connector 23 can be received in the second mounting location 122 when the vacuum connector 23 is retracted into the mounting box 12.

Fig. 9 is a schematic structural view of the coil wheel 3 in fig. 8. Fig. 10 is a structural entity diagram of fig. 9 from another perspective. Fig. 11 is a schematic view of the assembly of the coil spring and the coil wheel 3 of fig. 9. Fig. 12 is a schematic cross-sectional view of fig. 4.

Still referring to fig. 5 to 12, the coil wheel 3 is disposed in the door 11 for winding the vacuum pipeline 22, so that the vacuum pipeline 22 can be wound and accommodated in the door 11. The circumferential wall of the coil wheel 3 is concavely provided with a winding groove 31 circumferentially arranged in a surrounding way, and the vacuum pipeline 22 is wound in the winding groove 31. The vacuum pipeline 22 can wind or unwind on the coil wheel 3 and synchronously drive the coil wheel 3 to rotate in the door body 11.

Referring to fig. 5, the mounting box 12 is recessed with a mounting groove 123 for mounting the coil wheel 3. The contour of the mounting groove 123 is circular, and a spindle 124 is provided at the center of the mounting groove 123. The axis of the mandrel 124 is perpendicular to the bottom surface of the mounting groove 123, and the coil wheel 3 is rotatably sleeved on the mandrel 124. It is understood that the core shaft 124 may be detachably connected to the bottom surface of the mounting groove 123, or may be integrally formed with the bottom surface of the mounting groove 123.

In some embodiments, the peripheral wall of the mounting groove 123 defines an outlet groove 125 communicating with the second mounting location 122. One end of the vacuum line 22 extends through the outlet slot 125 and into the second mounting location 122 to connect to the vacuum connection 23.

When drawing vacuum joint 23 through external force, make vacuum joint 23 stretch out panel 13, vacuum line 22 can stretch out door 11 along with vacuum joint 23 to it is rotatory along first direction forward to drive coil pipe wheel 3, and then makes vacuum line 22 progressively unreel on coil pipe wheel 3. On the contrary, when the coil wheel 3 rotates reversely in the second direction, the vacuum pipeline 22 can be wound on the coil wheel 3 step by step, and the vacuum pipeline 22 and the vacuum connector 23 can be retracted and accommodated in the door 11 step by step. It should be noted that the first direction and the second direction are two opposite directions respectively, which are circumferentially wound along the coil wheel 3.

Still referring to fig. 5 and 6, in some embodiments, the peripheral edge of the mounting groove 123 is protruded with a surrounding wall 126, and the surrounding wall 126 is protruded and extended toward the direction close to the panel 13. The surrounding wall 126 is used for deepening the installation groove 123 so that the coiler 3 can be completely accommodated in the installation groove 123.

Referring to fig. 4 to 8, a cover plate 14 is further disposed in the mounting box 12, and the cover plate 14 covers the mounting groove 123. The cover plate 14 can abut against the surrounding wall 126 to cover the coil wheel 3 in the installation groove 123, so that the coil wheel 3 is limited in the installation groove 123 and can stably rotate around the mandrel 124.

Referring to fig. 10 to 12, the reset element 4 is disposed between the coil wheel 3 and the mandrel 124 for driving the coil wheel 3 to rotate in the second direction, and enabling the vacuum line 22 and the line connector 222 to automatically retract into the mounting box 12.

In some embodiments, the return member 4 employs a coil spring. An axial end face of the coil wheel 3 is concavely provided with a containing groove 32 arranged around the axis of the coil wheel, and the mandrel 124 is positioned at the center of the containing groove 32. The coil spring is disposed within the pocket 32 and is helically disposed around the mandrel 124. The inner end of the coil spring is fixedly attached to the mandrel 124 and the outer end of the coil spring is fixed to the inner wall of the receiving groove 32.

When the vacuum joint 23 is pulled by external force, the vacuum pipeline 22 is gradually unreeled on the coil wheel 3, the coil wheel 3 rotates positively along the first direction, and at the moment, the coil spring is gradually coiled and deformed and elastically deforms towards the reducing direction.

When the external force for drawing the vacuum connector 23 disappears, the elastic deformation of the coil spring is reset, that is, the coil spring can be elastically deformed gradually towards the expanding direction so as to be restored to the initial state. In the process, since the mandrel 124 is fixed in the mounting groove 123, the coil spring can drive the coil wheel 3 to rotate in the second direction, so that the vacuum line 22 can be automatically rewound on the coil wheel 3, and the vacuum line 22 and the vacuum connector 23 can be automatically retracted into the mounting box 12.

Still referring to fig. 10 to 12, in some embodiments, the coil wheel 3 is further provided with a fixing plate 33. The fixing plate 33 is disposed on an axial end face of the coil wheel 3, and the fixing plate 33 is fixed at a notch of the accommodating groove 32. The two ends of the fixing plate 33 are fixedly connected to the notch edges of the receiving groove 32, respectively, to limit and fix the coil spring in the receiving groove 32.

The fixing plate 33 has a through hole 331 at an axial center thereof, and the fixing plate 33 is sleeved on the core shaft 124 through the through hole 331, so that the fixing plate 33 can rotate together with the coil wheel 3 relative to the core shaft 124.

Fig. 13 is a schematic view of the assembly of the vacuum line 22 and the coil wheel 3 of fig. 5.

Referring to fig. 4 to 13, in some embodiments, the vacuum line 22 includes a connection pipe 221, a line connector 222 and a drawing pipe 223. The connection pipe 221 is used for connecting with the vacuum pump 21, the pipeline joint 222 is used for communicating the connection pipe 221 and the drawing pipe 223, and the drawing pipe 223 is used for connecting with the vacuum joint 23.

One end of the connection pipe 221 is connected to the pipe joint 221, and the other end is connected to the suction port of the vacuum pump 21. The drawing pipe 223 is wound on the winding groove 31 of the coil wheel 3, the inner end of the drawing pipe 223 is connected with the 221 line connector, and the outer end of the drawing pipe 223 passes through the outlet groove 125 and extends into the second mounting position 122 to be connected with the vacuum connector 23.

In some embodiments, the line connector 222 includes an adapter portion 2221 and a spindle portion 2222 that are rotatably coupled with respect to one another. The connecting part 2221 and the rotating shaft part 2222 are communicated with each other and are connected with each other in a sealing way. One end of the connection pipe 221 is connected to the adaptor 2221, and the other end is connected to the vacuum extractor. The drawing pipe 223 is wound on the winding groove 31 of the coil wheel 3 along the circumferential direction, the inner end of the drawing pipe 223 is communicated with the rotating shaft portion 2222, and the outer end is communicated with the vacuum connector 23. The adapting portion 2221 is installed at the center of the cover plate 14 and fixed on the cover plate 14. The rotating shaft portion 2222 is disposed at the axial center of the coil wheel 3 and is coaxially disposed with the mandrel 124, and the rotating shaft portion 2222 can rotate synchronously with the coil wheel 3 and rotate relative to the adapting portion 2221. And the adapting part 2221 can be fixed to the cover plate 14 all the time during the rotation of the rotating shaft part 2222 to be stably connected to the vacuum pump 21.

In some embodiments, the cover 14 has a through hole 141 at the center thereof, and the cover 14 has a wiring groove 142 recessed on the surface thereof, wherein the wiring groove 142 extends to the through hole 141. The adaptor 2221 is fitted into and fixed to the through hole 141. The connection tube 221 is disposed in the wiring groove 142 to be stably connected to the adapting portion 2221, and can prevent the adapting portion 2221 from rotating relative to the cover 14.

Referring to fig. 9 to 13, in some embodiments, an axial end surface of the coil wheel 3 away from the accommodating groove 32 is recessed with an accommodating groove 34, an inner wall of the winding groove 31 is opened with a wire passing hole 35 communicating with the accommodating groove 34, and the rotating shaft portion 2222 is disposed at a center of the accommodating groove 34. The pulling pipe 223 is wound on the winding groove 31 of the coil wheel 3, and the inner end of the pulling pipe 223 can pass through the wire passing hole 35 and extend into the accommodating groove 34 to be connected with the rotating shaft portion 2222.

When the pull pipe 223 extends out or retracts in the installation box 12, the pull pipe 223 can repeatedly unreel or reel on the coil wheel 3 along with the forward and reverse rotation of the coil wheel 3. The inner end of the pull-out tube 223 is kept in the receiving groove 34 for a sufficient length, so that the connection stability of the pull-out tube 223 and the rotating shaft portion 2222 can be ensured, and the pull-out tube 223 is prevented from being separated from the rotating shaft portion 2222 when extending out or retracting in the mounting box 12.

Fig. 14 is a schematic structural view of the coil wheel 3 in fig. 4 in a locked state. Fig. 15 is a schematic structural view of the lock mechanism 5 in fig. 14. Fig. 16 is a schematic view of the coil wheel 3 of fig. 14 rotating in a first direction in a forward direction. Fig. 17 is a schematic view of the stop arm 51 of fig. 16 extending into the recessed area 302. Fig. 18 is a structural view showing the reverse rotation of the coil wheel 3 in the second direction in fig. 17.

Referring to fig. 14 to 18 in combination with fig. 5, the locking mechanism 5 is disposed in the mounting box 12 and disposed on the periphery of the coil wheel 3. It is understood that the locking mechanism 5 may be provided in other regions in the door 11 in the case where the mounting case 12 is not provided in the door 11.

When the vacuum connector 23 and the vacuum pipeline 22 extend out of the mounting box 12, the coil wheel 3 rotates in the first direction, and the locking mechanism 5 can abut against the coil wheel 3 to limit the coil wheel 3 to rotate in the second direction in the opposite direction, so that the length of the vacuum pipeline 22 extending out of the mounting box 12 can be maintained, as shown in fig. 16.

During retraction of the vacuum connection 23 and vacuum line 22 into the mounting box 12, the locking mechanism 5 can also be disengaged from the coil wheel 3 to allow the coil wheel 3 to counter rotate in the second direction and the vacuum line 22 to freely retract into the mounting box 12, as shown in fig. 18.

In some embodiments, the locking mechanism 5 includes a stopper arm 51 and a tension spring 52. The stop arm 51 is arranged on the periphery of the coil wheel 3, one end of the stop arm 51 is hinged on the inner wall of the mounting box 12, and the other end of the stop arm 51 faces the coil wheel 3 and can be abutted against the coil wheel 3. A tension spring 52 is positioned on the side of the stop arm 51 remote from the coiler wheel 3, one end of the tension spring 52 being connected to the mounting box 12 and the other end of the tension spring 52 being connected to one end of the stop arm 51. A tension spring 52 can drive the other end of the stop arm 51 towards the coiler wheel 3 so that the stop arm 51 can abut against the coiler wheel 3.

Referring to fig. 4 and 14, the surrounding wall 126 is provided with a notch 1261, and a part of the surrounding wall of the coil wheel 3 can be exposed to the surrounding wall 126 through the notch 1261 and abut against the stop arm 51.

Referring to fig. 14 and 17, in some embodiments, a fixing shaft 53 is disposed on a side of the stopping arm 51 away from the coil wheel 3 in the mounting box 12, wherein the fixing shaft 53, the hinge shaft of the stopping arm 51, and the axis of the coil wheel 3 are located on the same straight line. When one end of the tension spring 52 is connected to the stop arm 51, the other end of the tension spring 52 away from the stop arm 51 is connected to the fixed shaft 53, and the tension spring 52 is in a stretched state, and the tension spring 52 can drive the other end of the stop arm 51 to automatically face the axial center of the coiler wheel 3, as shown in fig. 17. Note that, as the hinge shaft of the fixed shaft 53 and the stopper arm 51, a bolt or a screw fixed in the mounting box 12 may be used.

Referring to fig. 14 to 18 in combination with fig. 9, a plurality of gear areas 301 are disposed on a periphery of an end wall of the coil wheel 3, and the gear areas 301 are used for abutting against the stop arms 51. A recessed area 302 is formed in the space between adjacent gear areas 301, and the recessed area 302 is used for the stop arm 51 to extend into.

A plurality of tooth grooves which are continuously arranged around the circumference of the coil wheel 3 are formed in the gear area 301. The spline can engage with the stop arm 51 and the stop arm 51 can apply a tangential force to the coiler wheel 3 to prevent the coiler wheel 3 from rotating in the second direction in the opposite direction, as shown in fig. 14.

When the coiler wheel 3 is rotated in a forward direction in a first direction, the gear area 301 can push the stop arm 51 open to allow the coiler wheel 3 to rotate freely, and thus allow the vacuum line 22 and the vacuum connection 23 to extend freely out of the mounting box 12, as shown in fig. 16. At this time, the stopper arm 51 is always in contact with the gear area 301 by the combined action of the tensile force of the tension spring 52 and the pressing force of the gear area 301 against the stopper arm 51. If the vacuum line 22 and the vacuum connector 23 are released, the coil wheel 3 will rotate in the second direction in the opposite direction under the action of the coil spring, and the stop arm 51 will immediately engage with the tooth slot in the gear area 301 and limit the coil wheel 3 to rotate in the opposite direction, as shown in fig. 14.

When the coiler wheel 3 rotates to the position that the concave area 302 is opposite to the stop arm 51, the stop arm 51 can be automatically extended into the concave area 302 under the action of the tension spring 52, and the stop arm 51 can be disengaged from the gear area 301, as shown in fig. 17. In the condition of fig. 17, the coiler wheel 3 can continue to rotate automatically in the forward direction in the first direction, so that the vacuum line 22 continues to extend out of the mounting box 12, as shown in fig. 16. And in the condition of figure 17 the coil wheel 3 is also able to rotate in the second direction in the opposite direction, leaving the vacuum line 22 free to retract into the mounting box 12, as shown in figure 18.

Referring to fig. 15 and 18, in some embodiments, the stop arm 51 is provided with an arcuate portion 511 on a side adjacent the end of the coiler 3. When the coil wheel 3 reversely rotates along the second direction, the arc portion 511 smoothly contacts with the gear area 301 of the coil wheel 3, so as to prevent the stop arm 51 from obstructing the reverse rotation of the coil wheel 3, and further to make the retraction process of the vacuum pipeline 22 smoother.

Figure 19 is a partial cross-sectional view of the coil wheel 3 and cover plate 14 of figure 5. Fig. 20 is a schematic view of the structure of the damper 6 in fig. 19.

Referring to fig. 19 and 20 in conjunction with fig. 5, the damper 6 is disposed in the mounting box 12 and connected to the coil wheel 3. The damper 6 is used to slow the reverse rotational speed of the coil wheel 3 and the retraction speed of the vacuum line 22. Specifically, when the reset member 4 drives the coil wheel 3 to rotate reversely in the second direction and the vacuum line 22 is retracted into the mounting box 12, the damper 6 can apply a force to the coil wheel 3 opposite to the rotation direction thereof. This effort can slow down the reverse rotation speed of coil pipe wheel 3, and then slows down the speed that contracts of vacuum line 22, avoids too fast or the vacuum line 22 contracts too fast because of the reverse rotation speed of coil pipe wheel 3, and causes evacuation module inner structure to damage or other potential safety hazards.

In some embodiments, the damper 6 is a gear damper 6, and the gear damper 6 is disposed on the cover plate 14. The gear damper 6 can be fixed to the cover plate 14 by means of a snap connection. Meanwhile, the end surface of the coil wheel 3 facing the cover plate 14 is provided with a gear ring 36, and the center of the gear ring 36 is located on the mandrel 124. The gear damper 6 is provided with a gear which extends into the mounting box 12 and is in meshing transmission with the gear ring 36. The gear on gear damper 6 is always able to mesh with gear ring 36 as coil wheel 3 rotates around spindle 124. When the vacuum pipeline 22 extends out of the mounting box 12 and the coil wheel 3 rotates in the forward direction, the gear damper 6 has no damping effect, and when the vacuum pipeline 22 retracts into the mounting box 12 and the coil wheel 3 rotates in the reverse direction, the gear damper 6 can play a damping effect to slow down the reverse rotation speed of the coil wheel 3, so that the retraction speed of the vacuum pipeline 22 is slowed down, and the slow retraction effect is achieved.

Based on the technical scheme, the embodiment of the invention at least has the following advantages and positive effects:

in the refrigeration equipment of the embodiment of the invention, the vacuum joint 23, the vacuum-pumping device and the vacuum pipeline 22 which are arranged in the door body 11 are matched to realize the vacuum-pumping function. At the same time, the coil wheel 3 provided in the door 11 allows the vacuum line 22 to be wound around the coil wheel 3. When the sealed container outside the door 11 needs to be vacuumized, the vacuum joint 23 and the vacuum pipeline 22 are pulled and extend out of the door 11 for vacuumization. After the vacuumizing operation is finished, the coil wheel 3 is rotated reversely by the resetting piece 4, so that the vacuum pipeline 22 is wound on the coil wheel 3 again, and the vacuum joint 23 and the vacuum pipeline 22 are retracted into the door body 11. The vacuum fresh-keeping device is simple to operate, convenient to store without the help of an external pipeline, and beneficial to improving the convenience of vacuum fresh-keeping operation of a user.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention 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

1. A refrigeration apparatus, comprising:

a box body, wherein a refrigeration chamber is arranged in the box body;

the door body is arranged on the front side of the box body and used for opening and closing the refrigerating chamber;

the vacuum joint is movably arranged on the door body and can extend out of the door body;

the vacuumizing device is arranged in the door body and is used for vacuumizing;

the coil pipe wheel is rotatably arranged in the door body;

the resetting piece is connected with the coil pipe wheel and is used for driving the coil pipe wheel to rotate and reset; and

the vacuum pipeline is wound on the coil pipe wheel, one end of the vacuum pipeline is connected with the vacuum joint, and the other end of the vacuum pipeline is connected with the vacuumizing device;

the vacuum joint can drive a vacuum pipeline to extend out of the door body and drive the coil pipe wheel to rotate positively along a first direction, so that the vacuum pipeline is unreeled on the coil pipe wheel;

the reset piece can drive the coil pipe wheel to rotate reversely in a second direction, so that the vacuum pipeline is wound on the coil pipe wheel again, and the vacuum pipeline is retracted into the door body.

2. The refrigeration appliance according to claim 1 further comprising a latch mechanism; the locking mechanism is arranged in the door body and arranged on the periphery of the coil pipe wheel;

the locking mechanism can abut against the coil pipe wheel to limit the coil pipe wheel to reversely rotate along a second direction and keep the length of the vacuum pipeline extending out of the door body;

the locking mechanism can also be disengaged from the coil wheel to enable the coil wheel to counter-rotate in a second direction and enable the vacuum line to retract into the door body.

3. The refrigeration appliance according to claim 2, wherein the latch mechanism comprises a stopper arm and a tension spring;

the stop arms are arranged on the periphery of the coil pipe wheel and hinged on the door body;

the tension spring is positioned on one side, far away from the coil pipe wheel, of the stop arm, one end of the tension spring is connected with the door body, and the other end of the tension spring is connected with one end of the stop arm;

the tension spring drives the other end of the stopping arm to face the coil pipe wheel, so that the stopping arm can abut against the coil pipe wheel.

4. The refrigeration appliance according to claim 3, wherein a fixed shaft is provided in the door body on a side of the stop arm away from the coil wheel, and an end of the tension spring away from the stop arm is connected to the fixed shaft; the fixed shaft, the hinged shaft of the stop arm and the axis of the coil pipe wheel are positioned on the same straight line; the other end of the stopping arm is driven by the tension spring to face the axis of the coil pipe wheel.

5. The refrigeration unit of claim 3 wherein the periphery of said coil wheel is provided with a plurality of spaced gear zones; a concave area is formed in the interval between the adjacent gear areas, and the stop arm can extend into the concave area;

when the coil pipe wheel rotates forwards along a first direction, the gear area can push the stop arm open, so that the coil pipe wheel can rotate freely;

when the coil wheel reversely rotates along a second direction, the stop arm can be clamped in the gear area to limit the reverse rotation of the coil wheel;

when the stop arm extends into the recessed area, the stop arm can be separated from the gear area.

6. The refrigeration unit of claim 5 wherein said gear area has a plurality of splines formed therein and arranged in a continuous pattern around the circumference of said coil wheel, said splines being engageable with said stop arm to prevent reverse rotation of said coil wheel in a second direction.

7. The refrigeration appliance according to claim 1, further comprising a mounting box, wherein the mounting box is arranged in the door body, a mounting groove is concavely arranged in the mounting box, and a mandrel is arranged at the center of the mounting groove; the coil pipe wheel is arranged in the mounting groove and is rotatably sleeved on the mandrel.

8. The refrigeration appliance according to claim 7, wherein a receiving groove is concavely formed at the axis of the coil wheel, and the mandrel is positioned at the center of the receiving groove;

the reset piece is a coil spring which is arranged in the accommodating groove and surrounds the mandrel; the inner end of the coil spring is fixed on the mandrel, and the outer end of the coil spring is fixed on the inner wall of the containing groove.

9. The refrigeration appliance according to claim 8 further comprising a fixed panel; the fixing plate is fixed at the notch of the accommodating groove and limits the coil spring in the accommodating groove;

the center of the fixed plate is provided with a through hole, and the fixed plate is rotatably sleeved on the mandrel through the through hole.

10. The refrigeration appliance according to claim 7, further comprising a cover plate covering the mounting slot to enclose the coil wheel within the mounting slot;

the vacuum pipeline comprises a pipeline joint, a connecting pipe and a drawing pipe; the pipeline joint is used for communicating the pull pipe with the connecting pipe, the pipeline joint comprises a switching part and a rotating shaft part which are connected in a relative rotation mode, the switching part is arranged in the center of the cover plate, and the rotating shaft part is arranged at the axis of the coil pipe wheel and is arranged coaxially with the core shaft; one end of the connecting pipe is connected with the switching part, and the other end of the connecting pipe is connected with the vacuumizing device; the drawing pipe is wound on the coil pipe wheel along the circumferential direction, the inner end of the drawing pipe is communicated with the rotating shaft part, and the outer end of the drawing pipe is communicated with the vacuum joint.