CN113932534B - Refrigerating apparatus - Google Patents

Abstract

The application relates to refrigeration equipment, which comprises a box body, a door body, a vacuum joint, a vacuumizing device, a coil wheel, a resetting piece, a vacuum pipeline and a damper, wherein the door body is provided with a vacuum pipe; the vacuum connector can extend out of the door body; the coil pipe wheel is rotatably arranged in the door body; the reset piece drives the coil pipe wheel to reset; the vacuum pipeline is wound on the coil pipe wheel and is communicated with the vacuum joint and the vacuumizing device; the damper is connected with the coil pipe wheel; the vacuum connector can drive the vacuum pipeline to extend out of the door body and drive the coil pipe wheel to rotate in the forward direction so as to unreel the coil pipe wheel; the reset piece can drive the coil pipe wheel to reversely rotate, so that the vacuum pipeline is wound on the coil pipe wheel. When the vacuum is needed, the vacuum pipeline can be pulled out of the door body to be vacuumized, and the operation is simple. After the operation is finished, the reset piece enables the coil pipe wheel to reversely rotate, so that the vacuum pipeline is rewound on the coil pipe wheel, and the vacuum pipeline is convenient to store. When the vacuum pipeline is retracted, the retraction speed of the vacuum pipeline is slowed down by using the damper, so that the device is safer and more stable to use.

Description

Refrigerating apparatus

Technical Field

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

Background

Along with the continuous improvement of the requirements of people on food health, the requirements of people on the fresh-keeping capability of refrigeration equipment such as refrigerators, freezers and the like are also increasing. The vacuum fresh-keeping technology applied to the refrigeration equipment is mainly a vacuum drawer arranged in the refrigeration equipment, and the vacuum-pumping module is used for carrying out vacuum-pumping treatment on the sealed drawer or the sealed fresh-keeping box so as to realize fresh-keeping of food materials in the drawer and the fresh-keeping box.

At present, the vacuum joint positions of vacuum pumping devices applied to refrigeration equipment are basically fixed. When the vacuum fresh-keeping box is used for carrying out vacuumizing operation relative to the vacuum fresh-keeping box, an external pipeline is usually required to be connected, and the vacuum fresh-keeping box is convenient for users to use. And the external pipeline is used as a functional accessory, and the storage of the pipeline brings inconvenience to users.

Disclosure of Invention

The application aims to provide refrigeration equipment so as to optimize the structures of refrigeration equipment such as a refrigerator, a freezer and the like in the prior art and improve the convenience of vacuum fresh-keeping operation of users.

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

according to one aspect of the present application, there is provided a refrigeration apparatus comprising: the box body is internally provided with a refrigeration compartment; the door body is arranged at the front side of the box body and is used for opening and closing the refrigeration compartment; the vacuum connector 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 reset piece is arranged on the coil pipe wheel and 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 damper is arranged in the door body and is connected with the coil pipe wheel; the vacuum connector can drive the vacuum pipeline to extend out of the door body and drive the coil pipe wheel to rotate forward along a first direction so as to unwind the vacuum pipeline on the coil pipe wheel; the reset piece can drive the coil pipe wheel to reversely rotate along a second direction so as to enable the vacuum pipeline to be rewound on the coil pipe wheel and retract the vacuum pipeline into the door body; the damper is capable of slowing the retraction rate of the vacuum line when the coil wheel is counter-rotated in a second direction.

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 position is concavely arranged in the mounting box, and a mandrel is arranged at the center of the mounting position; the coil pipe wheel is arranged in the installation position and is rotatably sleeved on the mandrel.

According to some embodiments of the application, the refrigeration equipment further comprises a cover plate, wherein the cover plate covers the installation position so as to cover the coil wheel in the installation position; the damper is arranged on the cover plate.

According to some embodiments of the application, a gear ring is arranged on the end surface of the coil wheel facing the cover plate, and the center of the gear ring is positioned on the mandrel; the damper is a gear damper, a gear is arranged on the gear damper, and the gear is meshed with the gear ring for transmission so as to apply acting force opposite to the rotating direction of the coil pipe wheel.

According to some embodiments of the application, the vacuum pipeline comprises a pipeline joint, a connecting pipe and a drawing pipe; the pipeline joint is used for communicating the drawing pipe and the connecting pipe, the pipeline joint comprises a switching part and a rotating shaft part which are connected in a relative rotating way, the switching part is arranged at the center of the cover plate, and the rotating shaft part is rotatably arranged at the axle center of the coil pipe wheel and is coaxially arranged with the mandrel; 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 tube is wound on the coil wheel along the circumferential direction, the inner end of the drawing tube is communicated with the rotating shaft part, and the outer end of the drawing tube is communicated with the vacuum joint.

According to some embodiments of the application, a wire winding groove is concavely formed in the peripheral wall of the coil wheel, a containing groove is concavely formed in one axial end surface of the coil wheel, and a wire passing hole communicated with the containing groove is formed in the inner wall of the wire winding groove; the rotating shaft part is arranged at the center of the accommodating groove, the drawing pipe is wound in the winding groove, and the inner end of the drawing pipe penetrates through the wire passing hole and stretches into the accommodating groove to be connected with the rotating shaft part.

According to some embodiments of the application, a through hole is formed in the center of the cover plate, a wiring groove is concavely formed in the surface of the cover plate, and the wiring groove extends to the through hole; the switching part is embedded in the through hole; the connecting pipe is arranged in the wiring groove.

According to some embodiments of the application, a containing groove is concavely arranged on the other axial end surface of the coil wheel, and the mandrel is positioned in the center of the containing 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 accommodating groove.

According to some embodiments of the application, the refrigeration equipment further comprises a locking mechanism; the locking mechanism comprises a stop arm and a tension spring; the stop arm is arranged on the periphery of the coil wheel and is hinged to the door body; the tension spring is positioned at one side of the stop arm far away from the coil wheel, 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 stop arm towards the coil wheel so that the stop arm can abut against the coil wheel.

According to some embodiments of the application, the periphery of the coil wheel is provided with a plurality of gear areas which are arranged at intervals; a concave area is formed in the interval between the adjacent gear areas; the concave area can be used for the stop arm to extend in; when the coil wheel rotates positively in a first direction, the gear area can prop up the stop arm so that the coil wheel can rotate freely; when the coil wheel reversely rotates along the second direction, the stop arm can be clamped in the gear area so as to limit the coil wheel to reversely rotate; the stop arm is capable of disengaging from the gear region when the stop arm extends into the recessed region.

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

in the refrigeration equipment provided by the embodiment of the application, the vacuumizing function is realized by utilizing the cooperation of the vacuum connector, the vacuumizing device and the vacuum pipeline which are arranged in the door body. The vacuum pipeline can be wound on the coil wheel by using the coil wheel arranged in the door body. When the vacuum pumping operation is needed to be carried out on the sealed container outside the door body, the vacuum connector and the vacuum pipeline are pulled and extend out of the door body to carry out the vacuum pumping operation. After the vacuumizing operation is finished, the coil wheel is reversely rotated by the reset piece, so that the vacuum pipeline is rewound on the coil wheel, and the vacuum connector and the vacuum pipeline are retracted into the door body. Meanwhile, in the process of retracting the vacuum pipeline, the damping action of the damper is utilized to apply acting force opposite to the rotating direction of the coil pipe wheel, so that the retracting speed of the vacuum pipeline is slowed down, and the device is safer and more stable to use. The vacuum fresh-keeping device is simple to operate, convenient to store and beneficial to improving the convenience of vacuum fresh-keeping operation of users without using an external pipeline.

Drawings

Fig. 1 is a schematic view illustrating a structure of a refrigerator according to an embodiment of the present application.

Fig. 2 is a partial schematic view of fig. 1, in which the vacuum joint 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 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 view of the coil wheel of fig. 8.

Fig. 10 is a physical diagram of the structure of fig. 9 at another view angle.

FIG. 11 is a schematic view of the assembly of the coil spring and the coiler 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 coil wheel of fig. 5.

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

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

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

Fig. 17 is a schematic view of the stop arm of fig. 16 extending into the recess.

Fig. 18 is a schematic view of the coil wheel of fig. 17 rotated in a reverse direction.

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

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

The reference numerals are explained as follows: 1. a case; 11. a door body; 12. a mounting box; 121. a first mounting location; 122. a second mounting location; 123. a mounting groove; 124. a mandrel; 125. an outlet slot; 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 pipeline; 221. a connecting pipe; 222. a pipe joint; 2221. a switching part; 2222. a rotating shaft portion; 223. drawing a tube; 23. a vacuum joint; 3. a coiled pipe wheel; 301. a gear region; 302. a recessed region; 31. a wire winding groove; 32. a receiving groove; 33. a fixing plate; 331. perforating; 34. a receiving groove; 35. a wire through hole; 36. a gear ring; 4. a reset member; 5. a locking mechanism; 51. a stop 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 present application will be described in detail in the following description. It will be understood that the application is capable of various modifications in various embodiments, all without departing from the scope of the application, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the application.

In the description of the present application, 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 application 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 application.

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 application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, 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 application will be understood in specific cases by those of ordinary skill in the art.

Along with the continuous improvement of the requirements of people on food health, the requirements of people on the fresh-keeping capability of refrigeration equipment such as refrigerators, freezers and the like are also increasing. The vacuum fresh-keeping technology applied to the refrigeration equipment is mainly a vacuum drawer arranged in the refrigeration equipment, and the vacuum-pumping module is used for carrying out vacuum-pumping treatment on the sealed drawer or the sealed fresh-keeping box so as to realize fresh-keeping of food materials in the drawer and the fresh-keeping box.

At present, the vacuum joint positions of vacuum pumping devices applied to refrigeration equipment are basically fixed. When the vacuum fresh-keeping box is used for carrying out vacuumizing operation relative to the vacuum fresh-keeping box, an external pipeline is usually required to be connected, and the vacuum fresh-keeping box is convenient for users to use. And the external pipeline is used as a functional accessory, and the storage of the pipeline brings inconvenience to users.

The refrigerating equipment of the embodiment of the application can be refrigerating cabinets such as a refrigerator, a hall bar cabinet and the like, and the refrigerator is taken as an example to describe the structural principle of the refrigerating equipment of the embodiment of the application in detail.

For convenience of description, unless specified otherwise, directions of up, down, left, right, front and rear are all referred to a state of the refrigerator when the refrigerator is in use, and a door body of the refrigerator is in front and a direction opposite to the door body is in rear.

Fig. 1 is a schematic view illustrating a structure of a refrigerator according to an embodiment of the present application. Fig. 2 is a partial schematic view of fig. 1, in which the vacuum joint 23 is in a state of being extended out of the door body 11.

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

The case 1 has a rectangular parallelepiped structure. The box body 1 can be internally provided with a plurality of mutually separated refrigerating compartments, and each separated refrigerating compartment 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 types and store the food types. The refrigerating compartments can be arranged in a vertically separated mode or in a left-right separated mode.

The door 11 is provided at the front side of the cabinet 1 for opening and closing the refrigerating compartment. The door body 11 and the box 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 can be opened and closed, and the corresponding refrigeration compartment is opened and closed. It is understood that the door 11 may be provided in plurality and in one-to-one correspondence with the refrigerating compartments. One door 11 can also open and close a plurality of refrigeration compartments simultaneously.

In some embodiments, a sealed drawer is provided within the refrigerated compartment, or a removable sealed case is provided within the refrigerated compartment. The sealed drawer and the sealed box body can be used for independently sealing and preserving food materials.

The vacuumizing module is arranged in the door body 11, can extend out of the door body 11 and is used for vacuumizing a sealed drawer and a sealed box body in the refrigerating compartment, and can also be used for vacuumizing a sealed 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 of the mounting case 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 provided in the door 11, and the mounting box 12 is used to provide 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 encapsulate the vacuum module in the mounting box 12. The panel 13 is flush with the surface of the door body 11 to maintain the integrity and aesthetic appearance of the exterior surface of the door body 11. The panel 13 is provided with an opening 131, and the vacuumizing module can extend out of the opening 131 or retract into the opening 131.

Fig. 7 is a schematic view of the vacuum line 22 of 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 application mainly includes a vacuum device, a vacuum pipe 22, a vacuum connector 23, a coil wheel 3, a reset member 4, a locking mechanism 5 and a damper 6.

Wherein the vacuum pump 21 is used as the vacuum pumping device. The vacuum pump 21 is connected with the vacuum joint 23 through the vacuum pipeline 22, so that the vacuum pump 21 can realize the vacuumizing function through the vacuum pipeline 22 and the vacuum joint 23. It will be appreciated that other evacuation devices may be used to evacuate through the vacuum line 22 and the vacuum connector 23, thereby performing the evacuation function.

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

Referring to fig. 6, in some embodiments, the vacuum module further includes a glue sleeve 211 and a fixed cover 212. The rubber sleeve 211 can be made of flexible materials such as rubber. The rubber sleeve 211 is annular and is sleeved on the peripheral wall of the vacuum pump 21. The rubber sleeve 211 can be embedded in the first installation position 121 and provides damping and buffering effects for the vacuum pump 21. The fixing cover 212 is attached to the inner wall of the mounting box 12, for example, by bolts, screws, and is fixed in the mounting box 12 to clamp and fix the vacuum pump 21 in the first mounting position 121. It is understood that the rubber sleeve 211 may be clamped between the vacuum pump 21 and the fixed 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 is 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 then the vacuum pump 21 and the vacuum pipeline 22 are utilized to pump the gas in the corresponding sealed container, so that a vacuum low-pressure storage environment is formed inside the vacuum 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 opposite the opening 131 in the faceplate 13, and the vacuum connector 23 can be received at the second mounting location 122 when the vacuum connector 23 is retracted into the mounting box 12.

Fig. 9 is a schematic view of the coil wheel 3 of fig. 8. Fig. 10 is a physical diagram of the structure of fig. 9 at another view angle. Fig. 11 is a schematic view of the assembly of the coil spring and the coiler 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 pipe 22 so that the vacuum pipe 22 can be wound and accommodated in the door 11. The coil wheel 3 is provided with a winding groove 31 which is circumferentially arranged around the circumference in a concave manner, 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 concavely provided with a mounting groove 123 for mounting the coil wheel 3. The mounting groove 123 has a circular outline, and a core shaft 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 mandrel 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, an outlet slot 125 is provided in the peripheral wall of the mounting slot 123 that communicates 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 with the vacuum fitting 23.

When the vacuum connector 23 is pulled by external force, so that the vacuum connector 23 extends out of the panel 13, the vacuum pipeline 22 can extend out of the door 11 along with the vacuum connector 23 and drive the coil wheel 3 to rotate forward along the first direction, so that the vacuum pipeline 22 is gradually unreeled on the coil wheel 3. Conversely, when the coil wheel 3 rotates reversely in the second direction, the vacuum pipe 22 can be wound around the coil wheel 3 gradually, and the vacuum pipe 22 and the vacuum connector 23 can be retracted gradually and accommodated in the door 11. The first direction and the second direction are two opposite directions around the circumference of the coil wheel 3, respectively.

Referring still to fig. 5 and 6, in some embodiments, the periphery of the mounting groove 123 is provided with a peripheral wall 126, and the peripheral wall 126 extends convexly in a direction approaching the panel 13. The enclosure wall 126 serves to deepen the depth of the mounting slot 123 so that the coiled tubing wheel 3 can be fully received within the mounting slot 123.

Referring to fig. 4 to 8, a cover plate 14 is further disposed in the mounting box 12, and the cover plate 14 is covered on the mounting groove 123. The cover plate 14 can abut against the enclosing wall 126 to cover the coil wheel 3 in the mounting groove 123, thereby restricting the coil wheel 3 in the mounting groove 123 and enabling stable rotation about the spindle 124.

Referring to fig. 10 to 12, the reset member 4 is disposed between the coil wheel 3 and the spindle 124 for driving the coil wheel 3 to rotate reversely in the second direction, and enables the vacuum tube 22 and the tube connector 222 to retract into the mounting box 12 automatically.

In some embodiments, the restoring member 4 employs a coil spring. An axial end surface of the coil wheel 3 is concavely provided with a containing groove 32 which is arranged around the axle center, and the core axle 124 is positioned in the center of the containing groove 32. The coil springs are disposed within the pockets 32 and are disposed helically around the mandrel 124. The inner ends of the coil springs are fixedly attached to the mandrel 124 and the outer ends of the coil springs are fixedly attached to the inner walls of the receiving slots 32.

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

When the external force of the drawing vacuum joint 23 disappears, the elastic deformation of the coil spring is reset, that is, the coil spring can be gradually elastically deformed in the direction of expanding the diameter so as to return to the initial state. In this process, since the mandrel 124 is fixed in the mounting groove 123, the coil spring can rotate the coil wheel 3 in the opposite direction, thereby automatically rewinding the vacuum line 22 onto the coil wheel 3 and automatically retracting the vacuum line 22 and the vacuum fitting 23 into the mounting box 12.

Referring still to fig. 10-12, in some embodiments, a retaining plate 33 is also provided on the coil wheel 3. The fixing plate 33 is provided on an axial end face of the coil wheel 3, and the fixing plate 33 is fixed to a notch of the accommodating groove 32. Both 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 axle center of the fixed plate 33 is provided with a through hole 331, the fixed plate 33 is sleeved on the mandrel 124 through the through hole 331, and the fixed plate 33 can rotate along with the coil wheel 3 relative to the mandrel 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. 4-13, in some embodiments, the vacuum line 22 includes a connecting tube 221, a line fitting 222, and a pull tube 223. The connection pipe 221 is used for connecting with the vacuum pump 21, the pipe 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 221, and the other end is connected to the suction port of the vacuum pump 21. The drawing tube 223 is wound on the winding groove 31 of the coil wheel 3, the inner end of the drawing tube 223 is connected with the pipeline joint 221, and the outer end of the drawing tube 223 passes through the outlet groove 125 and stretches into the second installation position 122 to be connected with the vacuum joint 23.

In some embodiments, the line connector 222 includes a mating portion 2221 and a shaft portion 2222 that are rotatably coupled to each other. The adapter 2221 communicates with the inside of the shaft 2222, and is in sealing engagement. One end of the connection pipe 221 is connected to the adapter 2221, and the other end is connected to the vacuum pumping device. The drawing tube 223 is wound around the winding groove 31 of the coiler wheel 3 in the circumferential direction, and the inner end of the drawing tube 223 is connected to the rotating shaft portion 2222, and the outer end is connected to the vacuum joint 23. The adapter 2221 is installed in the center of the cover plate 14 and is fixed to the cover plate 14. The rotation shaft portion 2222 is provided at the axial center of the coiled tube wheel 3 and is coaxially arranged with the spindle 124, and the rotation shaft portion 2222 can rotate synchronously with the coiled tube wheel 3 and rotate relative to the engagement portion 2221. And the adapter portion 2221 can be always fixed to the cover plate 14 during rotation of the rotating shaft portion 2222 to be stably connected to the vacuum pump 21.

In some embodiments, the center of the cover plate 14 is provided with a through hole 141, and the surface of the cover plate 14 is concavely provided with a wiring groove 142, and the wiring groove 142 extends to the through hole 141. The adapter 2221 is fitted into and fixed to the through hole 141. The connection pipe 221 is installed in the wiring groove 142 to be stably coupled with the coupling part 2221, and can prevent the coupling part 2221 from rotating with respect to the cover plate 14.

Referring to fig. 9 to 13, in some embodiments, a receiving groove 34 is concavely formed on an axial end surface of the coil wheel 3 away from the receiving groove 32, a wire passing hole 35 communicating with the receiving groove 34 is formed on an inner wall of the winding groove 31, and the rotating shaft portion 2222 is disposed at a center of the receiving groove 34. The drawing tube 223 is wound around the winding groove 31 of the coiler wheel 3, and an inner end of the drawing tube 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 draw tube 223 is extended or retracted in the mounting box 12, the draw tube 223 is repeatedly unreeled or wound on the coil wheel 3 as the coil wheel 3 rotates forward and backward. The inner end of the drawing tube 223 is kept in the accommodating groove 34 for a sufficient length, so that the connection stability of the drawing tube 223 and the rotating shaft portion 2222 can be ensured, and the drawing tube 223 is prevented from being separated from the rotating shaft portion 2222 when extending or retracting in the mounting box 12.

Fig. 14 is a schematic view of the coil wheel 3 of 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 structure of the coil wheel 3 of fig. 14 rotated in the forward direction. Fig. 17 is a schematic view of the structure of the stopper arm 51 of fig. 16 extending into the recessed area 302. Fig. 18 is a schematic view showing a structure in which the coil wheel 3 of fig. 17 is reversely rotated in the second direction.

Referring to fig. 14 to 18, in combination with fig. 5, a locking mechanism 5 is provided in the mounting box 12 and on the peripheral side of the coiler wheel 3. It will be appreciated that the locking mechanism 5 may be provided in other areas within the door body 11 without the mounting box 12 being provided within the door body 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.

The locking mechanism 5 can also be disengaged from the coil wheel 3 during retraction of the vacuum fitting 23 and vacuum line 22 into the mounting box 12 to enable the coil wheel 3 to counter-rotate in the second direction and to enable the vacuum line 22 to be freely retracted into the mounting box 12, as shown in fig. 18.

In some embodiments, the locking mechanism 5 includes a stop arm 51 and a tension spring 52. The stopper arm 51 is provided on the peripheral side of the coil wheel 3, one end of the stopper arm 51 is hinged to the inner wall of the mounting box 12, and the other end of the stopper arm 51 faces the coil wheel 3 and can be abutted against the coil wheel 3. The tension spring 52 is positioned on one side of the stop arm 51 far away from the coil wheel 3, one end of the tension spring 52 is connected with the mounting box 12, and the other end of the tension spring 52 is connected with one end of the stop arm 51. The 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 rest against the coiler wheel 3.

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

Referring to fig. 14 and 17, in some embodiments, a fixed shaft 53 is disposed in the mounting box 12 at a side of the stop arm 51 away from the coil wheel 3, wherein the fixed shaft 53, the hinge shaft of the stop arm 51 and the axle center of the coil wheel 3 are located on the same line. When one end of the tension spring 52 is connected with the stop arm 51, the other end of the tension spring 52 far away from the stop arm 51 is connected with the fixed shaft 53, at this time, 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 axle center of the coiler wheel 3, as shown in fig. 17. Bolts or screws fixed in the mounting case 12 may be used as the hinge shafts of the fixed shaft 53 and the stopper arm 51.

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

A plurality of tooth slots are formed in the gear section 301 and are arranged continuously around the circumference of the coiled tube wheel 3. The tooth slot can engage with a stop arm 51, the stop arm 51 can apply a tangential force to the coiled wheel 3 to prevent the coiled wheel 3 from counter-rotating in the second direction, as shown in fig. 14.

Upon forward rotation of the coil wheel 3 in the first direction, the gear region 301 can push against the stop arm 51 to allow free rotation of the coil wheel 3 and thus free extension of the vacuum line 22 and vacuum fitting 23 out of the mounting box 12, as shown in fig. 16. At this time, the stopper arm 51 always abuts against the gear area 301 under the combined action of the tension spring 52 and the pressing force of the gear area 301 against the stopper arm 51. When the vacuum line 22 and vacuum connector 23 are released, the coiler wheel 3 will rotate in the second direction under the action of the coil spring, the stop arm 51 will immediately engage the tooth slot in the gear area 301 and limit the coiler wheel 3 from rotating in the opposite direction, as shown in fig. 14.

When the coil wheel 3 rotates to the position that the concave area 302 is opposite to the stop arm 51, the stop arm 51 can automatically extend into the concave area 302 under the action of the tension spring 52, and at this time, the stop arm 51 can be separated from the gear area 301, as shown in fig. 17. In the condition of fig. 17, the coil wheel 3 can continue to automatically rotate in the forward direction, causing the vacuum line 22 to continue to extend out of the mounting box 12, as shown in fig. 16. And in the condition of fig. 17, the coil wheel 3 is also capable of counter-rotating in the second direction, allowing the vacuum line 22 to retract freely into the mounting box 12, as shown in fig. 18.

Referring to fig. 15 and 18, in some embodiments, the stop arm 51 is provided with an arcuate portion 511 on a side proximate to the end of the coil wheel 3. When the coil wheel 3 rotates reversely along the second direction, the arc-shaped part 511 is smoothly attached to the gear area 301 of the coil wheel 3, so that the stop arm 51 can be prevented from blocking the reverse rotation of the coil wheel 3, and the retraction process of the vacuum pipeline 22 is smoother.

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

Referring to fig. 19 and 20, in combination with fig. 5, a damper 6 is disposed within the mounting box 12 and is connected to the coil wheel 3. The damper 6 is used to slow the reverse rotation speed of the coil wheel 3 and the retraction speed of the vacuum line 22. Specifically, when the return member 4 drives the coil wheel 3 to rotate in the reverse direction in the second direction and retracts the vacuum line 22 into the mounting box 12, the damper 6 can apply a force to the coil wheel 3 in the direction opposite to the rotation direction thereof. The acting force can slow down the reverse rotation speed of the coil wheel 3, so as to slow down the retraction speed of the vacuum pipeline 22, and avoid the damage to the internal structure of the vacuumizing module or other potential safety hazards caused by the too high reverse rotation speed of the coil wheel 3 or the too high retraction speed of the vacuum pipeline 22.

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 may be secured to the cover plate 14 by a snap-fit connection. At the same time, the end face 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 positioned on the mandrel 124. The gear damper 6 is provided with a gear which extends into the mounting box 12 and is in meshed transmission with the gear ring 36. The gear on the gear damper 6 is always able to mesh with the ring gear 36 as the coiler wheel 3 rotates around the mandrel 124. And when the vacuum pipeline 22 stretches out of the mounting box 12 and the coil wheel 3 rotates forwards, the gear damper 6 does not have damping effect, and when the vacuum pipeline 22 retracts into the mounting box 12 and the coil wheel 3 rotates reversely, the gear damper 6 can play a damping effect, the reverse rotation speed of the coil wheel 3 is slowed down, 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 application has at least the following advantages and positive effects:

in the refrigeration equipment of the embodiment of the application, the vacuum pumping function is realized by matching the vacuum connector 23, the vacuum pumping device and the vacuum pipeline 22 which are arranged in the door body 11. The vacuum pipe 22 can be wound around the coil wheel 3 by the coil wheel 3 provided in the door 11. When the vacuum pumping operation is required to be performed on the sealed container outside the door 11, the vacuum connector 23 and the vacuum pipeline 22 are pulled out and extend out of the door 11 to perform the vacuum pumping operation. After the vacuum pumping operation is finished, the coil wheel 3 is reversely rotated by the reset piece 4, the vacuum pipeline 22 is rewound on the coil wheel 3, and the vacuum connector 23 and the vacuum pipeline 22 are retracted into the door body 11. Meanwhile, in the process of retracting the vacuum pipeline 22, the damping action of the damper 6 is utilized to apply a force opposite to the rotation direction of the coil wheel 3 so as to slow down the retracting speed of the vacuum pipeline 22. The vacuum fresh-keeping device is simple to operate, convenient to store and beneficial to improving the convenience of vacuum fresh-keeping operation of users without using an external pipeline.

While the application 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 application 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 (9)

1. A refrigeration appliance, comprising:

the box body is internally provided with a refrigeration compartment;

the door body is arranged at the front side of the box body and is used for opening and closing the refrigeration compartment; the door body is internally provided with an installation position;

the vacuum connector 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 installation position;

the cover plate is covered on the installation position to cover the coil wheel in the installation position;

the reset piece is arranged on the coil pipe wheel and is used for driving the coil pipe wheel to 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 damper is arranged in the door body and is connected with the coil pipe wheel;

the vacuum pipeline comprises a pipeline joint, a connecting pipe and a drawing pipe; the pipeline joint is used for communicating the drawing pipe and the connecting pipe and comprises a switching part and a rotating shaft part which are connected in a relative rotating way, the switching part is arranged at the center of the cover plate, and the rotating shaft part is arranged at the axle center of the coil wheel; 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 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;

the vacuum connector can drive the vacuum pipeline to extend out of the door body and drive the coil pipe wheel to rotate forward along a first direction so as to unwind the vacuum pipeline on the coil pipe wheel;

the reset piece can drive the coil pipe wheel to reversely rotate along a second direction so as to enable the vacuum pipeline to be rewound on the coil pipe wheel and retract the vacuum pipeline into the door body;

the damper is capable of slowing the retraction rate of the vacuum line when the coil wheel is counter-rotated in a second direction.

2. The refrigeration apparatus of claim 1 further comprising a mounting box, said mounting box being disposed within said door body, said mounting location being recessed within said mounting box, a spindle being disposed at a center of said mounting location; the coil pipe wheel is rotatably sleeved on the mandrel.

3. The refrigeration apparatus of claim 2 wherein said damper is provided on said cover plate.

4. A refrigeration unit according to claim 3, wherein a gear ring is provided on the end face of said coil wheel facing said cover plate, the center of said gear ring being located on said spindle;

the damper is a gear damper, a gear is arranged on the gear damper, and the gear is meshed with the gear ring for transmission so as to apply acting force opposite to the rotating direction of the coil pipe wheel.

5. A refrigeration device according to claim 3, wherein a wire winding groove is concavely formed in the peripheral wall of the coil wheel, a containing groove is concavely formed in one axial end surface of the coil wheel, and a wire passing hole communicated with the containing groove is formed in the inner wall of the wire winding groove;

the rotating shaft part is arranged at the center of the accommodating groove, the drawing pipe is wound in the winding groove, and the inner end of the drawing pipe penetrates through the wire passing hole and stretches into the accommodating groove to be connected with the rotating shaft part.

6. A refrigeration apparatus according to claim 3, wherein a through hole is provided in the center of said cover plate, and a wiring groove is concavely provided on the surface of said cover plate, said wiring groove extending to the through hole;

the switching part is embedded in the through hole; the connecting pipe is arranged in the wiring groove.

7. The refrigeration apparatus according to claim 5, wherein a receiving groove is concavely provided on the other axial end face of the coil wheel, and the spindle is located 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 accommodating groove.

8. The refrigeration apparatus of claim 1 further comprising a locking mechanism; the locking mechanism comprises a stop arm and a tension spring;

the stop arm is arranged on the periphery of the coil wheel and is hinged to the door body;

the tension spring is positioned at one side of the stop arm far away from the coil wheel, 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 stop arm towards the coil wheel so that the stop arm can abut against the coil wheel.

9. The refrigeration apparatus of claim 8 wherein a plurality of spaced apart gear areas are provided on the periphery of said coil wheel; a concave area is formed in the interval between the adjacent gear areas; the concave area can be used for the stop arm to extend in;

when the coil wheel rotates positively in a first direction, the gear area can prop up the stop arm so that the coil wheel can rotate freely;

when the coil wheel reversely rotates along the second direction, the stop arm can be clamped in the gear area so as to limit the coil wheel to reversely rotate;

the stop arm is capable of disengaging from the gear region when the stop arm extends into the recessed region.