TWI901088B - Retractable eco-friendly container - Google Patents

Abstract

A retractable environmentally friendly container includes a bottom shell, a bottom ring, an intermediate ring, a top ring, two fastening devices, a heat-insulating device, a top cover, and a solar device. The fastening devices are respectively disposed between the bottom ring and the intermediate ring, and between the intermediate ring and the top ring, so that the bottom ring, the intermediate ring, and the top ring can be positioned in a container state. Each fastening device includes a first fastening member and a second fastening member. The heat-insulating device includes a folding wall that can be extended upward or folded downward, and the folding wall has a wall contact. The solar device includes a solar panel and a cover contact electrically connecting the solar panel to the wall contact. The present invention uses the fixing devices to position the bottom ring, the middle ring, and the top ring in the receiving state and prevent liquid leakage.

Description

Retractable eco-friendly container

The present invention relates to a container, and more particularly to a retractable environmentally friendly container.

Conventional retractable eco-friendly containers consist of a base cup and layers of plastic rings nested on top of the base cup. This nesting mechanism utilizes slight differences in the diameters of the plastic rings, with the top of the bottom cup and each plastic ring below it being slightly smaller than the bottom of the plastic ring above it. The smaller bottom diameters of the base cup and each plastic ring create a sloped sidewall for easier nesting. However, over time, the nesting joints between the layers of this type of retractable eco-friendly container can wear out, rendering the container inoperable in its expanded state. Furthermore, water leakage may occur at each socket. Moreover, this type of telescopic environmentally friendly container has no heat preservation effect.

Therefore, an object of the present invention is to provide a collapsible environmentally friendly container that can overcome at least one disadvantage of the prior art.

Therefore, the retractable environmentally friendly container of the present invention includes a bottom shell, a bottom ring, a middle ring, a top ring, two fixing devices, a heat preservation device, a top cover, and a solar device.

The bottom shell includes a bottom wall and a peripheral wall extending upward from the periphery of the bottom wall. The bottom wall defines a chamber. The bottom ring body includes an annular bottom fixed to the bottom wall and a bottom annular wall extending upward from the annular bottom and spaced apart from the inner side of the peripheral wall. The intermediate ring body includes an intermediate ring wall with a bottom edge mounted to the top edge of the bottom annular wall and extending upward from the bottom edge. The top ring body includes a top annular wall with a bottom edge mounted to the top edge of the intermediate ring wall and extending upward from the bottom edge.

The fixing devices are respectively arranged between the bottom ring wall and the intermediate ring wall and between the intermediate ring wall and the top ring wall, so that the bottom ring body, the intermediate ring body, and the top ring body can be positioned in a receiving state. Each of the fixing devices includes a first fixing member and a second fixing member detachably coupled to the first fixing member.

The heat-insulating device includes a folding wall fixed to the bottom wall and located between the peripheral wall and the bottom annular wall, capable of extending upward or folding downward, and a flange located at the top edge of the folding wall and adapted to be detachably coupled to the top annular wall. The folding wall has a mounting surface connected to the flange and inclined upward, the mounting surface having a wall connection point.

The top cover comprises a top wall which can be covered on the top ring. The top wall has an upper surface facing upwards and a lower surface facing downwards and in contact with the top ring.

The solar energy device includes a solar panel arranged on the upper surface, a cover contact arranged on the lower surface and electrically connected to the solar panel and the wall contact, a wiring arranged from top to bottom along the folding wall and electrically connected to the wall contact, a circuit module arranged in the chamber and electrically connected to the wiring, and a battery module arranged in the chamber and electrically connected to the circuit module.

The retractable environmentally friendly container can be switched between the containing state and the stacking state. In the containing state, the bottom of the intermediate ring body is connected to the top of the bottom ring body through one of the fixing devices, the bottom of the top ring body is connected to the top of the intermediate ring body through the other fixing device, and the folding wall is in an upwardly extended state and connected to the outer side of the top ring wall through the flange; in the stacking state, the bottom of the intermediate ring body is connected to the top of the intermediate ring body through the other fixing device. When in the folded state, the first clips are separated from the corresponding second clips, so that the intermediate ring body is located between the bottom ring body and the peripheral wall, the top ring body is located between the intermediate ring body and the peripheral wall, and the flange of the folding wall is separated from the outer side of the top ring wall, so that it is in a folded state above the bottom wall and between the top ring body and the peripheral wall, and the wall contact is separated from the cover contact.

Therefore, the retractable environmentally friendly container of the present invention includes a bottom shell, a bottom ring, a middle ring, a top ring, two fixing devices, a heat preservation device, and a solar device.

The bottom shell includes a bottom wall and a peripheral wall extending upward from the periphery of the bottom wall. The bottom wall defines a chamber. The bottom ring body includes an annular bottom fixed to the bottom wall and a bottom annular wall extending upward from the annular bottom and spaced apart from the inner side of the peripheral wall. The intermediate ring body includes an intermediate ring wall with a bottom edge mounted to the top edge of the bottom annular wall and extending upward from the bottom edge. The top ring body includes a top annular wall with a bottom edge mounted to the top edge of the intermediate ring wall and extending upward from the bottom edge.

The fixing devices are respectively arranged between the bottom ring wall and the intermediate ring wall and between the intermediate ring wall and the top ring wall, so that the bottom ring body, the intermediate ring body, and the top ring body can be positioned in a receiving state. Each of the fixing devices includes a first fixing member and a second fixing member detachably coupled to the first fixing member.

The heat-insulating device includes a folding wall fixed to the bottom wall and located between the peripheral wall and the bottom annular wall, and capable of extending upward or folding downward, and a flange located at the top edge of the folding wall and used to be detachably coupled to the top annular wall. The folding wall has a plurality of spaced-apart mounting surfaces that are inclined upward.

The solar energy device includes a plurality of solar panels respectively arranged on the installation surfaces, a wiring arranged from top to bottom along the folding wall and electrically connected to the solar panels, a circuit module arranged in the chamber and electrically connected to the wiring, and a storage module arranged in the chamber and electrically connected to the circuit module.

The retractable environmentally friendly container can be switched between the containing state and the stacking state. In the containing state, the bottom of the intermediate ring body is connected to the top of the bottom ring body through one of the fixing devices, the bottom of the top ring body is connected to the top of the intermediate ring body through the other fixing device, and the folding wall is in an upwardly extended state and connected to the outer side of the top ring wall through the flange. When in the stacked state, the first clips are separated from the corresponding second clips, so that the intermediate ring body is located between the bottom ring body and the peripheral wall, the top ring body is located between the intermediate ring body and the peripheral wall, and the flange of the folding wall is separated from the outer side of the top ring wall, so as to be in a folded state above the bottom wall and between the top ring body and the peripheral wall.

The utility of the present invention is that, through the design of the fixing devices, the bottom ring, the middle ring, and the top ring can be positioned in the receiving state and prevent liquid leakage. Through the design of the heat-insulating device, the folding wall can be windproof and heat-insulating, and is easy to remove and clean.

Before the present invention is described in detail, it should be noted that similar elements are denoted by the same reference numerals in the following description.

1 and 2 , a first embodiment of the retractable environmentally friendly container of the present invention includes a bottom shell 1 , a bottom ring 2 , a middle ring 3 , a top ring 4 , two fixing devices 5 , a heat preservation device 6 , a top cover 7 , and a solar device 8 .

The bottom housing 1 comprises a generally hollow cylindrical bottom wall 11 and a peripheral wall 12 extending upward from the periphery of the bottom wall 11. The bottom wall 11 defines a chamber 110, and the top surface of the bottom wall 11 is light-transmissive. A first housing coupling member 121 is formed on the outer side of the top of the peripheral wall 12. The first housing coupling member 121 has two hemispherical grooves 122.

The bottom ring body 2 comprises a circular bottom 21 fixed to the center of the top side of the bottom wall 11, and a bottom ring wall 22 extending upward from the periphery of the bottom 21 and spaced apart from the inner side of the peripheral wall 12. The intermediate ring body 3 is disposed above and outside the bottom ring body 2 and comprises an intermediate ring wall 31 extending upward from the bottom edge, the bottom edge of which is removably coupled to the top edge of the bottom ring wall 22. The top ring body 4 is disposed above and outside the intermediate ring body 3 and comprises a top ring wall 41 extending upward from the bottom edge, the bottom edge of which is removably coupled to the top edge of the intermediate ring wall 31. The top annular wall 41 has an annular groove 411 on the outside of the top edge and a first cover coupling member 412 on the inside of the top. The first cover coupling member 412 is a female threaded structure. The bottom annular wall 22, the intermediate annular wall 31, and the top annular wall 41 are three sloping circular rings with different diameters that gradually expand from bottom to top. The diameter of the bottom of the bottom ring body 2 is smaller than the diameter of the top, the diameter of the top of the bottom ring body 2 is smaller than the diameter of the bottom of the intermediate ring body 3, the diameter of the bottom of the intermediate ring body 3 is smaller than the diameter of the top, the diameter of the top of the intermediate ring body 3 is smaller than the diameter of the bottom of the top ring body 4, and the diameter of the bottom of the top ring body 4 is smaller than the diameter of the top.

The fastening devices 5 are respectively disposed between the top edge of the bottom annular wall 22 and the bottom edge of the intermediate annular wall 31, and between the top edge of the intermediate annular wall 31 and the bottom edge of the top annular wall 41. Each fastening device 5 includes a first fastening member 51 located at the top edge of the bottom annular wall 22 or the top edge of the intermediate annular wall 31, a second fastening member 52 located at the bottom edge of the intermediate annular wall 31 or the bottom edge of the top annular wall 41 and removably coupled to the corresponding first fastening member 51, and an O-ring 53 disposed below the coupling to prevent liquid leakage. The first fastening member 51 has a female thread 511, and the second fastening member 52 has a male thread 521 that is detachably threaded with the female thread 511. The first fastening member 51 and the second fastening member 52 can be interchanged in their respective positions.

The heat-insulating device 6 includes a folding wall 61, whose bottom edge is fixed to the top periphery of the bottom wall 11 and spaced between the bottom ring 2 and the peripheral wall 12. The folding wall 61 can be extended upward or folded downward, and a flange 62 located at the top edge of the folding wall 61 and removably connected to the top peripheral wall 41. The folding wall 61 has an upwardly inclined mounting surface 611 connected to the flange 62. The portion of the mounting surface 611 adjacent to the flange 62 has a wall connection point 612 for connecting to the solar device 8. The folding wall 61 is made of a light-transmitting material.

The top cover 7 includes a top wall 71 that can be fitted over the top annular body 4, an inner wall 72 that is detachably coupled to the top annular wall 41, and an outer wall 73 spaced apart from the inner wall 72 and located outside the peripheral wall 12. The top wall 71 has an upper surface 711 facing upward and a lower surface 712 facing downward and capable of contacting the top annular body 4. The inner wall 72 has a second cover coupling member 721 that is detachably coupled to the first cover coupling member 412 on the inner side of the top edge of the top annular wall 41. The second cover coupling member 721 is a male threaded structure. The outer wall 73 has a second shell coupling member 731 that is detachably coupled to the first shell coupling member 121 on the outer side of the top of the peripheral wall 12. The second shell coupling member 731 has two hemispherical protrusions 732. The first cover coupling member 412 and the second cover coupling member 721 are interchangeable in structure. The first shell coupling member 121 and the second shell coupling member 731 are interchangeable in structure.

The solar device 8 includes a flat rectangular solar panel 81 disposed on the upper surface 711, a cover contact 82 disposed on the lower surface 712 and electrically connected to the solar panel 81 and the wall contact 612, a wiring 83 disposed from top to bottom along the folding wall 61 and electrically connected to the wall contact 612, a circuit module 84 disposed in an annular shape in the chamber 110 and electrically connected to the wiring 83, and a circuit module 84 disposed below the circuit module 84 and electrically connected to the circuit module 8. 4, a storage module 85, a temperature control module 86 disposed in the chamber 110 and connected to the bottom of the ring bottom 21, a light module 87 disposed between the circuit module 84 and the temperature control module 86 and capable of emitting light toward the folding wall 61, a wireless charging module 88 disposed below the temperature control module 86 and capable of charging and storing electricity in the storage module 85, and a USB charging module 89 located on the side of the bottom wall 11 and capable of being plugged in and storing electricity in the storage module 85. The USB charging module 89 has two switches (not shown) that are electrically connected to the circuit module 84 and can respectively control the activation or deactivation of the temperature control module 86 and the light module 87. The control of the temperature control module 86 and the light emitting module 87 by the switches through the circuit module 84 is a prior art and will not be described in detail here.

The solar panel 81 absorbs and converts solar energy into electrical energy. This energy is transmitted to the circuit module 84 via the wiring 83 through the electrical connection between the lid contact 82 and the wall contact 612, and then stored in the storage module 85. The user can charge the storage module 85 via the solar panel 81, the wireless charging module 88, or the USB charging module 89. The power required to activate the temperature control module 86 and the light-emitting module 87 can be provided by the storage module 85 or directly input through the solar panel 81, the wireless charging module 88, or the USB charging module 89. The user can control the circuit module 84 via one of the switches on the USB charging module 89 to activate the temperature control module 86, heating the liquid contained in the retractable eco-friendly container to maintain a constant temperature. Alternatively, the user can control the circuit module 84 via another of the switches on the USB charging module 89 to activate the light module 87, emitting light toward the foldable wall 61. This allows light to pass through the foldable wall 61, allowing the retractable eco-friendly container to function as a nightlight or desk lamp. When the retractable eco-friendly container is not required for temperature control or lighting, the user can use the switches to turn off the temperature control module 86 and light module 87, respectively.

Referring to Figures 2 and 3, the telescopic environmentally friendly container can be switched between a contained state (shown in Figure 2) and a stacked state (shown in Figure 3). The contained state refers to the bottom of the intermediate ring body 3 being coupled to the top of the bottom ring body 2, and the bottom of the top ring body 4 being coupled to the top of the intermediate ring body 3. In this contained state, the first shell coupling member 121 is separated from the second shell coupling member 731. The female thread 511 on the top edge of the bottom ring wall 22 is threadedly engaged with the male thread 521 on the bottom edge of the intermediate ring wall 31, and the female thread 511 on the top edge of the intermediate ring wall 31 is threadedly engaged with the male thread 521 on the bottom edge of the top ring wall 41. The folding wall 61 extends upward, and the flange 62 engages with the slot 411 of the top ring wall 41. The first cover coupling member 412 can be coupled with the second cover coupling member 721, so that the top wall 71 is attached to the top ring body 4. The cover contact 82 can be coupled with the wall contact 612, and the electrical energy converted by the solar panel 81 can be stored in the battery module 85 in the chamber 110 via the wiring 83.

The stacked state means that the intermediate ring 3 is not combined with the bottom ring 2 and is located outside the bottom ring 2, and the top ring 4 is not combined with the intermediate ring 3 and is located outside the intermediate ring 3. When in the stacked state, the flange 62 is separated from the slot 411, so that the folding wall 61 is folded and located on the inner side of the peripheral wall 12 and above the top of the bottom wall 11. The wall contact 612 is separated from the cover contact 82, so the electric energy converted by the solar panel 81 cannot be transmitted and stored in the battery module 85 via the wiring 83. The female thread 511 on the top edge of the bottom ring wall 22 is separated from the male thread 521 on the bottom edge of the intermediate ring wall 31, so that the intermediate ring body 3 is located between the bottom ring body 2 and the peripheral wall. 12, the female thread 511 on the top edge of the intermediate ring wall 31 is separated from the male thread 521 on the bottom edge of the top ring wall 41, so that the top ring body 4 is located between the intermediate ring body 3 and the peripheral wall 12, the first cover coupling 412 is coupled with the second cover coupling 721, and the first shell coupling 121 is coupled with the second shell coupling 731, so that the top cover 7 seals the bottom ring body 2, the intermediate ring body 3, the top ring body 4, and the folded thermal insulation device 6 within the bottom shell 1, reducing the volume for easy carrying.

In summary, the design of the securing devices 5 allows the bottom ring 2, the intermediate ring 3, and the top ring 4 to be positioned in the container position and prevent liquid leakage. The design of the heat-insulating device 6 ensures that the folding wall 61 is windproof and heat-insulating, while also being easily removable for cleaning. The design of the solar energy device 8 allows the user to activate the temperature control module 86 and the light-emitting module 87 using three power sources to maintain the temperature of the liquid contained in the retractable environmentally friendly container or to use the retractable environmentally friendly container as a lighting source.

Referring to Figures 4, 5, and 6, the structure of a second embodiment of the collapsible environmentally friendly container of the present invention is substantially the same as that of the first embodiment, differing in the partial structures of the heat-insulating device 6 and the solar energy device 8. The folding wall 61 of the heat-insulating device 6 has a plurality of upwardly inclined and spaced-apart mounting surfaces 611. The solar energy device 8 includes a plurality of annular solar panels 81 respectively laid on the installation surfaces 611, the wiring 83 arranged from top to bottom along the folding wall 61 and electrically connected to the solar panels 81, the circuit module 84 annularly arranged in the chamber 110 and electrically connected to the wiring 83, the storage module 85 arranged below the circuit module 84 and electrically connected to the circuit module 84, and the storage module 85 arranged in the chamber 110. 0 and connected to the bottom of the ring bottom 21; the light module 87 disposed between the circuit module 84 and the temperature control module 86 and capable of emitting light toward the folding wall 61; the wireless charging module 88 disposed below the temperature control module 86 and capable of charging and storing electricity in the storage module 85; and the USB charging module 89 located on the side of the bottom wall 11 and capable of being plugged in and storing electricity in the storage module 85. The USB charging module 89 has two switches (not shown) that are electrically connected to the circuit module 84 and can respectively control the activation or deactivation of the temperature control module 86 and the light module 87.

The solar panels 81 absorb and convert solar energy into electrical energy. This electrical energy is transmitted to the circuit module 84 via the wiring 83 connecting the solar panels 81, and then stored in the storage module 85. The storage module 85 can provide electrical energy to activate the light-emitting module 87, or directly input electrical energy through the solar panels 81, the wireless charging module 88, or the USB charging module 89 to emit light toward the foldable wall 61. This allows the surface of the foldable wall 61 not covered with the solar panels 81 to transmit light, and the retractable environmentally friendly container can still be used as an illumination source.

Referring to FIG. 7 , the structure of a third embodiment of the collapsible environmentally friendly container of the present invention is substantially the same as that of the first embodiment, with the difference being that the bottom annular wall 22 forms a space for accommodating the intermediate annular body 3, and the intermediate annular wall 31 forms a space for accommodating the top annular body 4. The bottom annular wall 22 has a bottom inner portion 221 located inside the intermediate annular wall 31 and a bottom outer portion 222 located outside the intermediate annular wall 31. The intermediate annular wall 31 has an inner portion 311 located inside the top annular wall 41 and an outer portion 312 located outside the top annular wall 41. Each of the first fastening members 51 includes two female threads 511 spaced apart from each other. Each of the second fastening members 52 includes a female thread 511 spaced apart from each other. The top annular wall 41 is fixed between the inner portion 311 and the outer portion 312 of the room through one of the first fastening members 51 and the second fastening member 52, and the annular wall 31 is fixed between the inner portion 221 and the outer portion 222 of the room through the other first fastening member 51 and the second fastening member 52.

Referring to FIG8 , the structure of a fourth embodiment of the collapsible eco-friendly container of the present invention is substantially the same as that of the second embodiment, except for the structure of the fixing devices 5. The first fixing member 51 of each fixing device 5 has four inverted L-shaped grooves 512 arranged at equal angular intervals and at the same height. Each inverted L-shaped groove 512 has an upright portion 513 and a transverse portion 514 connected at one end to the top end of the upright portion 513. The second fixing member 52 of one of the fixing devices 5 has four protrusions 522 protruding inward from the bottom of the top annular wall 41. The protrusions 522 can be used to move the top annular wall 41 along the upright portion 513 on the intermediate annular wall 31. The second fastening member 52 of the other fastening device 5 is installed from bottom to top and rotates relative to the intermediate ring body 3 to be fixed to the end of the corresponding transverse portion 514 away from the upright portion 513. The second fastening member 52 of the other fastening device 5 has four protrusions 522 protruding inward from the bottom of the intermediate ring wall 31. These protrusions 522 can be installed from bottom to top along the upright portion 513 on the bottom ring wall 22 with the intermediate ring wall 31, and rotated relative to the bottom ring body 2 to be fixed to the end of the corresponding transverse portion 514 away from the upright portion 513. Each fastening device 5 includes four O-rings 53 disposed above the fastening portion. The number of the inverted L-shaped grooves 512 and the protrusions 522 is not limited to four, and can be two, three, or more depending on actual use requirements. The number of the O-rings 53 is not limited to four, and can be two, three, or more depending on the actual number of fastening points.

In summary, the collapsible environmentally friendly container of the present invention, through the design of the securing devices 5, allows the bottom ring 2, the intermediate ring 3, and the top ring 4 to be positioned in the container position and prevents liquid leakage. The design of the heat-insulating device 6 allows the folding wall 61 to provide windproof and heat-insulating properties while also being easily removed for cleaning, thus effectively achieving the purpose of the present invention.

The retractable environmentally friendly container of the present invention, through the design of the solar energy device 8, allows the user to activate the temperature control module 86 and the light module 87 through three power sources to maintain the temperature of the liquid contained in the retractable environmentally friendly container, or to use the retractable environmentally friendly container as a lighting source, thereby effectively achieving the purpose of the present invention.

However, the above descriptions are merely examples of embodiments of the present invention and should not be construed as limiting the scope of implementation of the present invention. Any simple equivalent variations and modifications made within the scope of the patent application and the contents of the patent specification are still covered by the present patent. It should be further noted that, when implementing the present invention, one or more features or details of one embodiment may be implemented together with one or more features or details of another embodiment, as appropriate.

1: Bottom shell 11: Bottom wall 110: Receptacle 12: Peripheral wall 121: First shell coupling member 122: Groove 2: Bottom ring 21: Ring bottom 22: Bottom ring wall 221: Bottom inner portion 222: Bottom outer portion 3: Intermediate ring 31: Intermediate ring wall 311: Intermediate inner portion 312: Intermediate outer portion 4: Top ring 41: Top ring wall 411: Slot 412: First cover coupling member 5: Fastening device 51: First fastening member 511: Female thread 512: Inverted L-shaped groove 513: Upright portion 514: Horizontal portion 52: Second fastening member 521: Male thread 522: Protrusion 53: O-ring 6: Insulation device 61: Folding wall 611: Mounting surface 612: Wall contact 62: Flange 7: Top cover 71: Top wall 711: Upper surface 712: Lower surface 72: Inner wall 721: Second cover fastener 73: Outer wall 731: Second housing fastener 732: Protrusion 8: Solar device 81: Solar panel 82: Cover contact 83: Wiring 84: Circuit module 85: Battery storage module 86: Temperature control module 87: Lighting module 88: Wireless charging module 89: USB charging module

Other features and functions of the present invention are clearly illustrated in the embodiments shown in the accompanying drawings, including: Figure 1 is a partially cutaway, exploded perspective view of a first embodiment of the collapsible, environmentally friendly container of the present invention; Figure 2 is a side, cross-sectional view of the first embodiment, illustrating the first embodiment in a contained state; Figure 3 is a side, cross-sectional view of the first embodiment, illustrating the first embodiment in a stacked state; Figure 4 is a partially cutaway, exploded perspective view of a second embodiment of the collapsible, environmentally friendly container of the present invention; Figure 5 is a side, cross-sectional view of the second embodiment, illustrating the second embodiment in the contained state; Figure 6 is a side, cross-sectional view of the second embodiment, illustrating the second embodiment in the stacked state; Figure 7 is a side cross-sectional view of a third embodiment of the collapsible environmentally friendly container of the present invention, illustrating the third embodiment in the container state; and Figure 8 is a side cross-sectional view of a fourth embodiment of the collapsible environmentally friendly container of the present invention, illustrating the fourth embodiment in the container state.

1: Bottom shell

11: Bottom wall

110: Storage Room

12: Peripheral Wall

121: First shell joint

122: Groove

2: Bottom ring

21: Ring bottom

22: Bottom ring wall

3: Inter-body

31: Ring wall

4: The whole body is covered with a halo

41: Top wall

411: Card Slot

412: First cover coupling member

5: Fastening device

51: First Card Firmware

511: Female thread

52: Second card firmware

521: Male thread

53: O-ring

6: Insulation device

61: Folding Wall

611: Setting surface

612: Wall contact

62: flange

7: Top cover

71: Top wall

711: Upper surface

712: Lower surface

72: Inner wall

721: Second cover coupling

73:Outer wall

731: Second shell connection piece

732: Bump

8: Solar energy device

81: Solar panels

82: Cover contact

83:Wiring

84: Circuit Module

85: Battery module

86: Temperature control module

87: Light-emitting module

88: Wireless charging module

89: USB charging module

Claims (5)

A retractable environmentally friendly container comprises: a bottom shell comprising a bottom wall and a peripheral wall extending upward from the periphery of the bottom wall, wherein the bottom wall defines a chamber; a bottom ring body comprising a ring bottom fixed to the bottom wall and a bottom ring wall extending upward from the ring bottom and spaced apart from the inner side of the peripheral wall; an intermediate ring body comprising an intermediate ring wall with a bottom edge mounted on the top edge of the bottom ring wall and extending upward from the bottom edge; a top ring body comprising a top ring wall with a bottom edge mounted on the top edge of the intermediate ring wall and extending upward from the bottom edge; two fixing devices, respectively provided at the bottom edge of ... Between the bottom ring wall and the intermediate ring wall and between the intermediate ring wall and the top ring wall, the bottom ring body, the intermediate ring body, and the top ring body can be positioned in a housing state, each of the fixing devices includes a first fixing member and a second fixing member detachably coupled to the first fixing member; an insulation device includes a folding wall fixed on the bottom wall and located between the peripheral wall and the bottom ring wall, and can be extended upward or folded downward, and a flange located at the top edge of the folding wall and used to be detachably coupled to the top ring wall, the folding wall having There are several installation surfaces inclined upward and spaced apart from each other; and a solar device, including several solar panels respectively installed on the installation surfaces, a wiring installed from top to bottom along the folding wall and electrically connected to the solar panels, a circuit module installed in the chamber and electrically connected to the wiring, and a storage module installed in the chamber and electrically connected to the circuit module; the retractable environmental container can be converted between the storage state and a stacking state. When in the storage state, the bottom of the intermediate ring is connected to the bottom ring through one of the fixing devices. The top of the intermediate ring body is combined with the top of the intermediate ring body, the bottom of the top ring body is combined with the top of the intermediate ring body through another fixing device, and the folding wall extends upward and is combined with the outer side of the top ring wall through the flange; when in the stacked state, the first fixing members are separated from the second fixing members respectively corresponding to each other, so that the intermediate ring body is located between the bottom ring body and the peripheral wall, the top ring body is located between the intermediate ring body and the peripheral wall, and the flange of the folding wall is separated from the outer side of the top ring wall, so as to be in a folded state above the bottom wall and between the top ring body and the peripheral wall. A collapsible environmentally friendly container as described in claim 1, wherein the bottom ring wall has a bottom inner portion located on the inner side of the intermediate ring wall and a bottom outer portion located on the outer side of the intermediate ring wall, the intermediate ring wall has an intermediate portion located on the inner side of the top ring wall and an intermediate portion located on the outer side of the top ring wall, each of the first fastening members includes two female threads spaced apart from each other, each of the second fastening members includes two male threads spaced apart from each other and capable of being threadedly connected to the female threads, the top ring wall is fixed between the intermediate portion and the intermediate portion by one of the first fastening members and the second fastening member, and the intermediate ring wall is fixed between the bottom inner portion and the bottom outer portion by another of the first fastening members and the second fastening member. As described in claim 1, the retractable environmentally friendly container, wherein the first fastening member of each of the fastening devices has a plurality of inverted L-shaped grooves arranged at intervals, each of the inverted L-shaped grooves has a vertical portion and a horizontal portion connected to the top end of the vertical portion at one end, and the second fastening member of one of the fastening devices has a number of protrusions corresponding to the inverted L-shaped grooves and protruding inward from the bottom of the top ring wall, and the protrusions can be used to connect the top ring wall along the intermediate ring wall. The upright portion is installed from bottom to top and rotates relative to the intermediate ring body to be fixed to the corresponding end of the transverse portion away from the upright portion. The second clamping member of the other clamping device has a number of protrusions corresponding to the inverted L-shaped grooves and protruding inward from the bottom of the intermediate ring wall. The protrusions can be installed from bottom to top along the upright portion on the bottom ring wall together with the intermediate ring wall and rotated relative to the bottom ring body to be fixed to the corresponding end of the transverse portion away from the upright portion. A retractable environmentally friendly container as described in any one of claims 1 to 3, wherein the solar energy device further includes a temperature control module disposed in the container and connected to the bottom of the ring bottom, the temperature control module being electrically connected to the circuit module and being powered by the power storage module to provide heat energy to maintain a constant temperature of the liquid contained in the retractable environmentally friendly container. The retractable environmentally friendly container as described in claim 4, wherein the solar energy device further includes a light-emitting module arranged in the container and located on the inner periphery of the folding wall and capable of emitting light toward the folding wall, a wireless charging module arranged in the container and capable of being charged and stored in the power storage module, and a USB charging module located on the bottom wall and capable of being plugged in and stored in the power storage module. The light-emitting module is electrically connected to the circuit module and can be powered by the power storage module to emit light.