CN108839953B

CN108839953B - turnover container

Info

Publication number: CN108839953B
Application number: CN201810968015.5A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Shanghai Box Intelligent Technology Co Ltd
Current assignee: Shanghai Box Intelligent Technology Co Ltd
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2023-09-29
Anticipated expiration: 2038-08-23
Also published as: CN108839953A

Abstract

The application discloses a turnover container. The turnover container has a container body and two container covers hinged to the container body, wherein one container cover is hinged to a first side edge of the top of the container body, and the other container cover is hinged to a second side edge opposite to the first side edge of the top of the container body. The box body is provided with an inner sleeve and an outer sleeve, the inner sleeve is sleeved in the outer sleeve, and a hollow space is formed between the inner sleeve and the outer sleeve. The turnover container provided by the application can be used for effectively preserving heat, realizing recovery, and facilitating assembly and operation.

Description

Turnover container

Technical Field

The application relates to a container, in particular to a heat preservation and insulation structure of the container.

Background

The existing turnover box is generally 600×400×360mm, 550×385×270mm and the like, the length and width of the outer dimension of the container are relatively uniform, the container is a standardized turnover tool, the available volume can be maximized and the occupied space is minimized during recycling, but in specific use occasions, such as fresh cold chain preservation and transportation industry, the fresh inside the turnover box is required to be placed to the greatest extent and is not influenced by external temperature, namely, heat exchange inside and outside the box is blocked to the greatest extent, the existing turnover box is relatively single in box material and process, the heat insulation or heat insulation effect cannot be achieved, under the condition that the external temperature difference is large, fresh inside the box is easily influenced by room temperature to be cooled or heated to cause spoilage, and secondly, heat insulation cotton or a heat insulation protection sleeve is added on the basis of the existing turnover box.

The two fresh-keeping modes are integrated, firstly, the heat preservation and insulation effect is lower, even no heat preservation and insulation effect exists, secondly, the heat preservation and insulation sheath is added on the inner wall and the outer wall of the box body, the operation convenience is poor, the heat preservation and insulation sheath is independent of parts outside the turnover box, is inconvenient to manage, is easy to lose and damage, and the existing heat preservation and insulation sheath has larger thickness, so that the available volume inside the box body is small, the recovery nesting rate is low (the recovery occupied space is large), vulnerable parts or consumable products exist in the product, and the later maintenance cost is higher.

In addition, in the case of the conventional transfer case 1a, when the case covers 3a and 4a are assembled to the case body 2a, a long hinge shaft 6a with a protrusion 5a is required to be inserted into hinge holes in the case body and the case cover from a through hole 7a at one end of the case cover. The through hole 7a and the hinge hole are coaxial. Therefore, the projection 5a must be provided on the hinge shaft 6a to prevent the hinge shaft from being accidentally detached. After assembly, the protrusions 5a are positioned in the bayonets 8a formed between the housing and the cover, thereby preventing the hinge shaft from falling off, as shown in fig. 15-17. The assembly is time-consuming and laborious because the cover is long and the hinge shaft has a protrusion.

Disclosure of Invention

The application aims at providing a turnover container which can effectively keep heat and insulate heat and further can not basically influence the nesting rate.

In order to achieve the above object, the present application provides a turnover container having a case body and two case covers hinged to the case body, wherein one of the case covers is hinged to a first side edge of a top of the case body, the other case cover is hinged to a second side edge opposite to the first side edge of the top of the case body, the case body has an inner case and an outer case, the inner case is sleeved in the outer case, and a hollow space is formed between the inner case and the outer case.

In one embodiment, the hollow space is evacuated or filled with a heat insulating material.

In one embodiment, the insulating material comprises an inert gas, gel, or vacuum insulation panel.

In one embodiment, the container body of one of the container bodies may be nested within the container body of another container body.

In one embodiment, the top surface of the inner sleeve has a height less than the top surface of the outer sleeve.

In one embodiment, a sealing groove is formed in the periphery of the lower surface of the box cover, and a sealing piece is arranged in the sealing groove.

In one embodiment, the sealing groove is disposed around three side edges of the case cover, and the sealing groove is U-shaped.

In one embodiment, the seal groove is configured to face the top surface of the inner sleeve when the lid is closed.

In one embodiment, each of the case covers has two opposite edges, one of which is hinged to the case body, and the other edge of one case cover opposite to the edge hinged to the case body presses against a portion of the corresponding edge of the other case cover when the case cover is closed, thereby restricting the other case cover.

In one embodiment, the shape of the other edge of the case cover opposite to the edge hinged to the case body is toothed.

In one embodiment, the first and second side edges of the top of the case are provided with a plurality of first hinge parts spaced apart from each other, the first hinge parts have first hinge holes, and one edge of the cover is provided with a plurality of second hinge parts spaced apart from each other, the second hinge parts are provided with second hinge holes, wherein a hinge shaft passes through the first and second hinge holes, and one end of the edge of the cover hinged to the side edge of the case is provided with a limit part, the limit part being configured to prevent the hinge shaft from being separated from the first and second hinge holes, and the hinge shaft passes through the first and second hinge holes from the end.

In one embodiment, the limiting portion is a baffle integrally formed in the case cover, and the baffle faces the second hinge hole.

In one embodiment, the hinge shaft is a straight rod.

In an embodiment, a notch is formed at one end of the edge of the case cover, where the edge of the limiting portion is disposed, the notch is provided with a hinge shaft mounting hole communicated with the second hinge hole, and the inlet height of the hinge shaft mounting hole is higher than the bottom height of the second hinge hole.

In one embodiment, the turnover container is further provided with a locking mechanism for locking the case cover to the case body.

In an embodiment, the locking mechanism has a locking member, the locking member is mounted on the box body, the locking member has a first limiting structure, and one box cover has a second limiting structure, where the first limiting structure and the second limiting structure cooperate to lock the box cover on the box body.

In an embodiment, the locking piece is installed in the outer sleeve, a notch is formed in the top of the outer sleeve, the first limiting structure of the locking piece is exposed out of the notch, the second limiting structure is integrally formed on the lower portion of the box cover, and in a locking state, the first limiting structure is matched with the second limiting structure.

In an embodiment, the first limiting structure is a lock hole located at the top of the locking piece, and the second limiting structure is a lock hook integrally extending from the lower surface of the case cover.

In one embodiment, a guide structure is integrally formed on the top of the locking member, and the guide structure is configured to guide the second limiting structure so as to be matched with the first limiting structure when the case cover is pressed downwards; and the locking member further has a reset structure arranged to actuate the locking member to reset upon completion of locking or unlocking.

In an embodiment, the locking piece has a plate-shaped body, one side of the plate-shaped body is provided with an elastic reset piece, the bottom of the plate-shaped body is provided with a rotating shaft, an operation part is arranged above the rotating shaft, the top of the plate-shaped body is provided with a lock hole, and a guide inclined plane is arranged above the lock hole.

The turnover container can effectively preserve heat and insulate heat, can realize the minimum occupied space for recovery and the convenient operation of fresh storage, is easy to operate, has no vulnerable parts or consumable products, and has simple product structure and easy maintenance.

Drawings

Fig. 1 is a perspective view of an epicyclic container according to an embodiment of the present application, with portions cut away to show the internal structure.

Fig. 2 is an enlarged view of part a of fig. 1, in which the epicyclic container is in a locked state.

Fig. 3 is a state change diagram of the portion a in fig. 1, in which the transfer container is in an unlocked state.

Fig. 4 is a perspective view of the transfer container with portions cut away to show the internal structure.

Fig. 5 is a perspective view of the transfer container with the outer sleeve and the inner sleeve separated.

Fig. 6 is a perspective view of the transfer container with the lid open.

Fig. 7 is a perspective view of the transfer container with portions cut away to show the internal structure.

Fig. 8 is an enlarged view of a portion B in fig. 7.

Fig. 9 is an enlarged view of the portion B of fig. 7 from another angle, wherein the view of fig. 9 is a front view.

Fig. 10 is a perspective view of a cover of the transfer container.

Fig. 11 is an enlarged view of a portion C in fig. 10.

Fig. 12 is a perspective view of the case of the transfer container.

Fig. 13 is an enlarged view of a portion D in fig. 12.

Fig. 14 is a perspective view of the locking element of the transfer container.

Fig. 15 is a perspective view of a prior art container for turnover.

Fig. 16 is an enlarged view of the portion F in fig. 15.

Fig. 17 is a perspective view of the hinge shaft.

Detailed Description

The preferred embodiments of the present application will be described in detail below with reference to the attached drawings, so that the objects, features and advantages of the present application will be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the application, but rather are merely illustrative of the true spirit of the application.

In the following description, for the purposes of explanation of various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of the specific details. In other instances, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and variations such as "comprises" and "comprising" will be understood to be open-ended, meaning of inclusion, i.e. to be interpreted to mean "including, but not limited to.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present application, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.

As shown in fig. 1-5, the container 1 has a box 2 and two covers 3, 4 hinged to the box. One cover 3 is hinged to a first side edge of the top of the case and the other cover 4 is hinged to a second side edge of the top of the case opposite the first side edge. The box body 2 is provided with an inner sleeve 5 and an outer sleeve 6, the inner sleeve 5 is sleeved in the outer sleeve 6, and a hollow space 7 is formed between the inner sleeve 5 and the outer sleeve 6. The dimensions of the transfer container 1 of the present application are usually 600X 400X 360mm, 550X 385X 270mm, etc.

The hollow space 7 may be evacuated or filled with a heat insulating material (relatively low thermal conductivity). For example, the hollow space is closed after being evacuated. After vacuumizing, the hollow space blocks heat convection and heat conduction so as to achieve the purposes of heat insulation and heat preservation. Alternatively, the hollow space may be filled with an inert gas (argon, krypton, xenon) having a high density and a low thermal conductivity. Or, solid materials with low heat conduction coefficient, such as gel, vacuum insulation panels and the like, can be filled in the hollow space to block heat exchange between the inner environment temperature and the outer environment temperature of the box body so as to achieve heat preservation of the box body.

As shown in fig. 5-6, the inner sleeve 5 and the outer sleeve 6 may be formed separately and then assembled together and sealed. The height of the top surface of the inner sleeve 5 is smaller than the height of the top surface of the outer sleeve 6. Therefore, the sealing strip on the box cover can be pressed on the top surface of the inner sleeve,

the inner sleeve 5 and the outer sleeve 6 each have two pairs of opposed side plates and a bottom plate. The cross sections of the inner sleeve 5 and the outer sleeve 6 are rectangular. The top of the inner sleeve 5 has an everting rim 8, as shown in fig. 5. During manufacture, the inner sleeve 5 is placed inside the outer sleeve 6 and then sealingly connected to the outer sleeve along the rim 8. Thus, a hollow sealing space is formed between the outer sleeve and the inner sleeve. In addition, the bottom surface of the sleeve 6 is tapered relative to the top surface, whereby the casing of one container can nest with the casing of another container.

The bottom surface of the outer sleeve 6 is provided with a positioning groove 9. The case covers 3 and 4 are provided with limit protrusions 10. When two containers 1 are stacked together, the positioning groove 9 and the positioning projection 10 cooperate to limit the containers 1.

As shown in fig. 12 to 13, the top of the case 2 is provided with a plurality of first hinge parts 11 spaced apart from each other. Between each two first hinge parts 11 there is a gap which accommodates exactly the corresponding second hinge part 15 on the lid. The first hinge part 11 has a first hinge hole 12. The first hinge hole 12 is a through hole penetrating the first hinge part 11. Open grooves 13 open upward and communicating with the first hinge holes are provided at both ends of the first hinge part 11.

As shown in fig. 10-11, each cover has opposite edges, one of which is hinged to the case 2. The edges 14 of the covers 3, 4 are provided with a plurality of second hinge parts 15 spaced apart from each other. Between each two second hinge parts 15 there is a gap which exactly accommodates the corresponding first hinge part 11 on the box. The second hinge part 15 is provided with a second hinge hole 16. The second hinge hole 16 is a through hole penetrating the second hinge part 15. Open grooves 17 open upward and communicating with the second hinge holes are provided at both ends of the second hinge part 15. When assembled, the hinge shaft 40 passes through the first hinge hole 12 and the second hinge hole 16. Thereby, the cover is hinged to the case. Here, the hinge shaft is a straight rod, thereby saving time and effort in assembly, as will be further described below.

As shown in fig. 8-9, the end of the cover hinged to the rim 14 of the case 2 is provided with a stop 18. The stopper 18 is provided to prevent the hinge shaft from being separated from the first hinge hole 12 and the second hinge hole 16. The stopper 18 is a baffle plate integrally formed in the cover, the baffle plate being opposite to the second hinge hole 16. Further, a notch 19 is provided at one end of the edge of the cover where the limiting portion 18 is provided. The notch 19 is provided with a hinge shaft mounting hole 20 communicating with the second hinge hole 16. The entrance height of the hinge shaft mounting hole 20 is higher than the bottom surface height of the second hinge hole 16. The second hinge hole 16 is located at one side of the hinge shaft mounting hole 20, and a limiting part (a shutter) 18 is located at the other side of the hinge shaft mounting hole 20, which is opposite to the second hinge hole 16. After assembly, the stop 18 limits the hinge axis so that it does not accidentally disengage from the hinge aperture. When the box cover is assembled, the cover is mounted in the hinge shaft mounting holes of the box body and the box cover through the hinge shaft, the hinge shaft is inserted through the hinge shaft mounting hole 20 which is opened at one side of the cover, and after the tail part of the hinge shaft passes through the limiting part 18 in the box cover, the tail part of the hinge shaft is elastically deformed and restored and falls into the limiting part 18, so that the box cover and the hinge shaft of the box cover are prevented from falling off easily or are prevented from being disassembled. In addition, due to the arrangement of the baffle, the hinge shaft can be a straight rod, and the limit protrusion is not required to be arranged as in the prior art, so that the assembly is very convenient, and manpower and material resources are greatly saved.

The other edge of the cover 3, opposite to the edge 14 hinged to the box, is toothed in shape, with a tooth 22. The other edge 23 of the cover 4, opposite to the edge 14 hinged to the box, is also toothed in shape. And between the two teeth 24 of the edge 23 of the cover 4 there is formed a portion 25 recessed with respect to the teeth 24 for receiving the corresponding teeth 22 of the cover 3. When the covers are closed, the teeth 22 of the other edge of one cover 3 opposite to the edge 14 hinged to the case cover press against the portions 25 of the corresponding edge of the other cover, thereby restraining the other cover.

The outer circumferences of the lower surfaces of the case covers 3 and 4 are respectively provided with seal grooves. The seal grooves are disposed around three side edges of the cover. The shape of seal groove is U-shaped. The seal groove is arranged so that it faces the top surface of the inner sleeve 5 when the cover is closed. A seal 28 is disposed within the seal groove. The seal 28 seals against the top of the inner sleeve when the lid is closed.

As shown in fig. 2-3 and 14, the transfer container 1 is further provided with a locking mechanism 50 for locking the lid to the case. The locking mechanism has a locking member 29. The lock 29 is mounted on the lock mounting portion 51 of the case 2. The locking member 29 has a first limiting structure, such as a locking hole or a locking hook. A cover 3 has a second retaining structure, such as a latch hook or latch hole, wherein the first and second retaining structures cooperate to lock the cover to the housing. In the embodiment shown in fig. 2-3, the second limiting structure is a latch hook 37 integrally extending from the lower surface of the cover 3. The latch hook 37 is located at the edge of the cover.

Specifically, the locking member 29 is mounted within the outer sleeve 6. The top of the jacket 6 is provided with a cut-out 30. The first limit structure of the locking element 29 exposes the notch 30. The lower part of the case cover 3 is integrally formed with a second limit structure, and in a locked state, the first limit structure is matched with the second limit structure.

Referring to the embodiment shown in fig. 14, the locking member 29 has a plate-like body 31. An elastic return piece 32 is provided on one side of the plate-like body 31. The elastic return piece 32 is a return structure that urges the locking member 29 to return when locking or unlocking is completed. The bottom of the plate-like body 32 is provided with a rotation shaft 33. The spindle 33 is used to mount the locking element on the housing 2. An operation portion 34 is provided above the rotation shaft 33 for unlocking operation by a user. The plate-like body 31 is provided at its top with a locking hole 35. Here, the lock hole 35 is a first limit structure. A guide inclined surface 36 is arranged above the lock hole 35. Here, the guide slope 36 is a guide structure configured to guide the second limit structure (latch hook) so that it cooperates with the first limit structure (latch hole) to achieve locking when the cover is pressed down. In this embodiment, the locking member 29 is integrally formed.

In assembly, the locking member 29 is mounted in the mounting cavity 37 in the housing with the spindle 33 at the lower locking member mounting portion 51. The elastic restoring piece 32 abuts against the outer wall of the inner sleeve 5. The locking hole 35 exposes the cutout 30. When in locking, only the case cover is needed to be pressed downwards, and the lock hook 37 on the case cover can enter the lock hole 35 under the action of the guide inclined plane to realize locking. At the time of unlocking, the operating portion 34 is pressed inward, and the plate-like body moves inward, thereby disengaging the lock hole 35 from the lock hook 37 to effect unlocking. After unlocking, the locking member 29 is reset by the elastic reset piece 32.

In the application, compared with the conventional turnover container of the type, the container body of the turnover container 1 is of a double-layer structure, and a hollow space is arranged between the inner sleeve and the outer sleeve. The hollow space can be vacuumized or filled with heat insulating materials, so that the heat preservation effect is good. Further, the sealing element is arranged on the box cover, so that the heat preservation effect is further enhanced. Furthermore, the turnover container is provided with the locking mechanism with ingenious structure, so that the box cover can be firmly locked on the box body, the sealing reliability is ensured, and the locking and unlocking are convenient. Finally, the application adopts a special hinge structure, and the hinge is convenient to assemble.

While the preferred embodiments of the present application have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

Claims

1. A turnover container having a case body and two case covers hinged to the case body, one of the case covers being hinged to a first side edge of a top of the case body and the other case cover being hinged to a second side edge opposite to the first side edge of the top of the case body, characterized in that the case body has an inner case and an outer case, the inner case being sleeved in the outer case, and a hollow space being formed between the inner case and the outer case;

the first side edge and the second side edge of the top of the case are provided with a plurality of first hinge parts spaced apart from each other, the first hinge parts have first hinge holes, and one edge of the case cover is provided with a plurality of second hinge parts spaced apart from each other, the second hinge parts are provided with second hinge holes, wherein a hinge shaft passes through the first hinge holes and the second hinge holes, and one end of the edge of the case cover hinged to the side edge of the case is provided with a limit part, the end of the edge of the case cover provided with the limit part is provided with a notch provided with a hinge shaft mounting hole communicated with the second hinge holes, the entrance height of the hinge shaft mounting hole is higher than the bottom surface height of the second hinge holes, the hinge shaft is an elastic member, the limit part is arranged such that the tail of the hinge shaft is elastically deformed and falls into the limit part after passing over the limit part, and the hinge shaft passes through the first hinge hole and the second hinge hole from the end.

2. The epicyclic container according to claim 1, wherein the hollow space is evacuated or is filled with a heat insulating material.

3. The epicyclic container according to claim 1, wherein the height of the top surface of said inner sleeve is less than the height of the top surface of said outer sleeve.

4. The turnover container of claim 1, wherein a sealing groove is provided at the outer periphery of the lower surface of said case cover, and a sealing member is provided in said sealing groove.

5. The epicyclic container of claim 4, wherein said seal grooves are arranged around three side edges of said cover, said seal grooves being U-shaped in shape.

6. The container of claim 1, wherein each of said flaps has opposite edges, one of which is hinged to said case, and wherein the other edge of one flap opposite the edge hinged to said case is pressed against a portion of the corresponding edge of the other flap when said flaps are closed, thereby restraining the other flap.

7. The container of claim 1, wherein the stop is a flap integrally formed in the lid, the flap facing the second hinge eyes.

8. The transfer container of claim 1, further provided with a locking mechanism for locking the lid to the case.

9. The epicyclic container of claim 8, wherein said locking mechanism has a locking member mounted on said housing, said locking member having a first limit structure, a cover having a second limit structure, wherein said first limit structure and said second limit structure cooperate to lock said cover to said housing.

10. The container according to claim 9, wherein the locking member is installed in the outer sleeve, a cutout is provided at a top of the outer sleeve, the first limit structure of the locking member is exposed out of the cutout, the second limit structure is integrally formed at a lower portion of the cover, and the first limit structure and the second limit structure are engaged in a locked state.

11. The container according to claim 9, wherein the top of the locking member is integrally formed with a guide structure arranged to guide the second limit structure so as to cooperate with the first limit structure when the lid is pressed down; and the locking member further has a reset structure arranged to actuate the locking member to reset upon completion of locking or unlocking.

12. The container according to claim 9, wherein the locking member has a plate-like body, one side of the plate-like body is provided with an elastic return piece, a bottom of the plate-like body is provided with a rotating shaft, an operating portion is provided above the rotating shaft, a top of the plate-like body is provided with a lock hole, and a guide slope is provided above the lock hole.

13. The transfer container of claim 1, wherein the container body of one transfer container is nestable with the container body of another transfer container.

14. A turnover container, the turnover container has a box body and a box cover hinged to the box body, wherein the box cover is hinged to the edge of the top of the box body, the turnover container is characterized in that the box body is provided with an inner sleeve and an outer sleeve, the inner sleeve is sleeved in the outer sleeve, and a hollow space is formed between the inner sleeve and the outer sleeve;

the edge at the top of box is equipped with a plurality of first articulated portions that are spaced apart each other, first articulated portion has first hinge hole, and the edge of case lid is equipped with a plurality of second articulated portions that are spaced apart each other, the second articulated portion is equipped with the second hinge hole, wherein the hinge pin passes first hinge hole and second hinge hole, and the end of the edge of case lid articulated in the top of box is equipped with spacing portion, the end of edge of case lid that is equipped with spacing portion is equipped with a breach, this breach is equipped with the hinge pin mounting hole of second hinge hole intercommunication, the entry height of hinge pin mounting hole is higher than the bottom surface height of second hinge hole, the spacing portion sets up after the afterbody of hinge pin passes spacing portion, the afterbody elastic deformation of hinge pin recovers and falls into within the spacing portion, and the hinge pin passes first hinge hole and second hinge hole from this end.

15. The epicyclic container according to claim 14, wherein the hollow space is evacuated or is filled with a heat insulating material.

16. The epicyclic container according to claim 14, wherein the height of the top surface of said inner housing is less than the height of the top surface of said outer housing.

17. The turnover container of claim 14, wherein a sealing groove is provided at the outer circumference of the lower surface of the case cover, and a sealing member is provided in the sealing groove.

18. The transfer container of claim 14, further comprising a locking mechanism for locking the lid to the case.

19. The epicyclic container of claim 18, wherein said locking mechanism has a locking member mounted on said housing, said locking member having a first limit structure, a cover having a second limit structure, wherein said first limit structure and said second limit structure cooperate to lock said cover to said housing.

20. The container according to claim 19, wherein the locking member is mounted in the outer sleeve, a cutout is provided at a top of the outer sleeve, the first limit structure of the locking member is exposed out of the cutout, the second limit structure is integrally formed at a lower portion of the cover, and the first limit structure and the second limit structure are engaged in a locked state.

21. The epicyclic container according to claim 19, wherein a guiding structure is integrally formed at the top of said locking member, said guiding structure being arranged to guide said second limit structure so that it cooperates with said first limit structure when said cover is pressed down; and the locking member further has a reset structure arranged to actuate the locking member to reset upon completion of locking or unlocking.

22. The container according to claim 19, wherein the locking member has a plate-like body, one side of the plate-like body is provided with an elastic return piece, a bottom of the plate-like body is provided with a rotation shaft, an operation portion is provided above the rotation shaft, a top of the plate-like body is provided with a lock hole, and a guide slope is provided above the lock hole.

23. The transfer container of claim 14, wherein the container body of one transfer container is nestable with the container body of another transfer container.