Container

Abstract

The utility model relates to a container which comprises a plurality of modules, at least two of the modules are detachably connected, and the modules comprise a lifting platform module, a lattice opening module, a container body module, a top cover module and a cargo transfer module. At least two of the lifting platform module, the lattice opening module, the cabinet body module, the top cover module and the cargo transfer module are detachably connected, so that a worker can conveniently combine all the modules together to form a container and can independently unload the corresponding modules according to requirements, and the working efficiency is improved. The flexibility and efficiency of disassembly and assembly of the container are greatly improved, and meanwhile modular batch production of the container can be achieved; in addition, the size of each module is small, and transportation work of the container is facilitated.

Description

Technical Field

[0001] The present disclosure relates to the technical field of warehousing and transportation, and in particular, to a container. Background Art

[0002] With the popularization of the Internet and the rapid development of the distribution industry, more and more people are meeting their daily needs through online shopping. In related technologies, takeout and express delivery goods can be transported to containers by drones, and then users can take them out at a convenient time according to their own situation, thereby improving the efficiency of receiving goods. In related technologies, containers are not easy to flexibly disassemble and transport. Utility Model Content

[0003] The object of the present disclosure is to provide a container consisting of at least two detachably connected modules to at least partially solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a container, comprising a plurality of modules, at least two of which are detachably connected, and the plurality of modules include: a landing and take-off platform module, for a drone to land and to receive cargo from the drone or to place cargo for the drone to take away; a compartment module, for storing the cargo; a cabinet module, having a cargo transfer channel and a cargo transfer port, the cargo transfer channel being located between the cargo transfer port and the compartment module; a top cover module, comprising a top cover that can be moved relative to the cabinet module to shield or expose at least a portion of the cargo transfer port; and a cargo transfer module, arranged in the cargo transfer channel, for transferring the cargo between the compartment module and the landing and take-off platform module via the cargo transfer port.

[0005] Optionally, the landing and lifting platform module includes a landing and lifting platform body and a landing and lifting platform bracket connected to the landing and lifting platform body, the landing and lifting platform bracket includes a first connecting portion and a first positioning portion, the cabinet module includes a first connecting fitting portion and a first positioning fitting portion, the first positioning portion is docked with the first positioning fitting portion to limit the position of the landing and lifting platform module relative to the cabinet module, and the first connecting portion and the first connecting fitting portion are detachably connected.

[0006] Optionally, the cabinet module includes a frame, the first connecting fitting portion and the first positioning fitting portion are arranged on the frame, the first positioning fitting portion includes a stop portion, and the first positioning portion stops at the stop portion from top to bottom.

[0007] Optionally, a plug interface communicating with the cargo transfer channel is provided on a side wall surface of the cabinet module, and the compartment module is plugged into the cabinet module via the plug interface.

[0008] Optionally, the slot module has a guiding portion and a second connecting portion, the guiding portion is used to guide the slot module to be inserted into the plug port, and the second connecting portion is used to be connected to the cabinet module.

[0009] Optionally, the guide portion includes a guide surface, and the guide surface is inclined to the insertion direction of the slot module, so as to guide the slot module to be inserted into the plug port.

[0010] Optionally, the second connecting portion is located on the side of the guide portion away from the cargo transfer channel along the plug-in direction of the grid module, and the second connecting portion includes a first connecting plate and a second connecting plate that are connected to each other, the first connecting plate is fitly connected to the outer wall of the grid module, and the second connecting plate is fitly connected to the cabinet module.

[0011] Optionally, the top cover module is connected to the top of the cabinet module, the lifting and lowering platform module is connected to the cabinet module and is located on one side of the top cover module to avoid the cargo transfer port or the upper space of the top cover module, and the compartment module is connected to the side wall surface of the cabinet module.

[0012] Optionally, the take-off and landing platform module is located above the bay module.

[0013] Optionally, the cabinet module includes a frame, a top end of the frame forms the cargo transfer port, and the top cover module is connected to the top end of the frame.

[0014] Through the above technical scheme, at least two of the lifting and landing platform module, the compartment module, the cabinet module, the top cover module and the cargo transfer module disclosed in the present invention can be detachably connected. Based on this, the staff can conveniently combine the modules together to form a container, and can also remove the corresponding modules separately according to needs, which greatly improves the flexibility and efficiency of container disassembly and assembly, and modularizes the container to facilitate modular manufacturing and assembly of the container; in addition, compared with the container as a whole in the related technology, the modules disclosed in the present invention are smaller in size, which is convenient for the transportation of the container.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 It is a first-view structural diagram of a lifting and lowering platform module and a cabinet module of a container provided in an embodiment of the present disclosure;

[0018] Figure 2 It is a second perspective structural diagram of the lifting and lowering platform module and the cabinet module of the container provided by the embodiment of the present disclosure;

[0019] Figure 3 yes Figure 1 A partial enlarged view of the middle A;

[0020] Figure 4 It is a first-view structural diagram of a lifting and landing platform body and a top cover module in a lifting and landing platform module of a container provided in an embodiment of the present disclosure;

[0021] Figure 5 It is a second perspective structural diagram of a lifting and landing platform body and a top cover module in a lifting and landing platform module of a container provided by an embodiment of the present disclosure;

[0022] Figure 6 It is a first-view structural diagram of a compartment module and a cabinet module of a container provided by an embodiment of the present disclosure;

[0023] Figure 7 is a second perspective structural diagram of a compartment module and a cabinet module of a container provided by an embodiment of the present disclosure;

[0024] Figure 8 yes Figure 6 A partial enlarged view of point B in the middle;

[0025] Fig. 9 is a structural diagram of a guide portion and a second connection portion of a container provided in an embodiment of the present disclosure;

[0026] Fig.10 is a structural diagram of a top cover module of a container provided by an embodiment of the present disclosure;

[0027] Fig.11 yes Fig.10 Schematic diagram of the structure at C in the middle;

[0028] Fig.12 It is a structural schematic diagram of a top cover module and a cargo transfer module of a container provided in an embodiment of the present disclosure;

[0029] Fig.13 yes Fig.12 A partial enlarged view of point D in the middle.

[0030] Description of Reference Numerals

[0031] 1-lifting and landing platform module; 11-lifting and landing platform body; 12-lifting and landing platform bracket; 1201-first connecting part; 1202-first positioning part; 2-grid module; 21-guide part; 2101-guide surface; 22-second connecting part; 2201-first connecting plate; 2202-second connecting plate; 3-cabinet module; 31-cargo transfer channel; 32-cargo transfer port; 33-first connecting matching part; 34-first positioning matching part; 3401-stop part; 35-frame; 36-plug interface; 4-top cover module; 5-cargo transfer module. DETAILED DESCRIPTION

[0032] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0033] In the present disclosure, unless otherwise stated, directional words such as "upper" and "lower" generally refer to the relative "upper" and "lower" in the direction of gravity when the corresponding components are in use. Figure 1 , Figure 2 , Figure 6 , Figure 7 and Fig.12 In the drawing direction shown, "inside" and "outside" refer to the "inside" and "outside" relative to the corresponding component's own contour. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element and do not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0034] The cargo container in an exemplary embodiment of the present disclosure will be described below with reference to the accompanying drawings.

[0035] refer to Figures 1 to 13 As shown, the present disclosure provides a container, including multiple modules, at least two of the multiple modules are detachably connected, the multiple modules include a landing and take-off platform module 1, a compartment module 2, a cabinet module 3, a top cover module 4, and a cargo transfer module 5, wherein the landing and take-off platform module 1 is used for landing of a drone and receiving cargo from the drone or placing cargo for the drone to take away, the compartment module 2 is used to store cargo, the cabinet module 3 has a cargo transfer channel 31 and a cargo transfer port 32, the cargo transfer channel 31 is located between the cargo transfer port 32 and the compartment module 2, the top cover module 4 includes a top cover that can be moved relative to the cabinet module 3 to cover or expose at least a portion of the cargo transfer port 32, and the cargo transfer module 5 is arranged in the cargo transfer channel 31, and is used to transfer cargo between the compartment module 2 and the landing and take-off platform module 1 via the cargo transfer port 32.

[0036] Since at least two of the lifting and landing platform module 1, the opening module 2, the cabinet module 3, the top cover module 4 and the cargo transfer module 5 are detachably connected, based on this, the staff can conveniently combine the modules together to form a container, and can also remove the corresponding modules separately according to needs. Specifically, if there is a problem with any of the lifting and landing platform module 1, the opening module 2, the cabinet module 3, the top cover module 4 and the cargo transfer module 5, the staff can remove the corresponding module for replacement without affecting the use of other modules, and the replaced new module can also be directly connected to other modules, which greatly improves the flexibility and efficiency of container disassembly and assembly, and at the same time modularizes the container to facilitate modular manufacturing and assembly of the container; in addition, compared with the containers with a higher degree of integration in the related technology, the modules disclosed in the present invention have a smaller volume, that is, they occupy less space and are more convenient for transportation.

[0037] In some embodiments of the present disclosure, Figures 1 to 5 As shown, the landing and taking-off platform module 1 and the cabinet module 3 can be connected in a detachable connection manner, and the remaining modules can be connected to the two in a detachable connection or an integral molding manner. The present disclosure is not limited here. The landing and taking-off platform module 1 includes a landing and taking-off platform body 11 for taking off and landing of the UAV and a landing and taking-off platform bracket 12 connected to the landing and taking-off platform body 11 to support the landing and taking-off platform body 11. The landing and taking-off platform bracket 12 includes a first connecting portion 1201 and a first positioning portion 1202. The cabinet module 3 includes a first connecting mating portion 33 and a first positioning mating portion 34. The first positioning portion 1202 is docked with the first positioning mating portion 34 to limit the position of the landing and taking-off platform module 1 relative to the cabinet module 3. The first connecting portion 1201 and the first connecting mating portion 33 are detachably connected. In the process of connecting the lifting and landing platform module 1 with the cabinet module 3, the installation position of the lifting and landing platform bracket 12 is first determined by the cooperation of the first positioning portion 1202 and the first positioning matching portion 34. At this time, the first connecting portion 1201 just corresponds to the first connecting matching portion 33, so that the two can be quickly connected. Figure 1 As shown, the cross-section of the landing platform bracket 12 can be an inverted "L"-shaped structure, one side of the "L"-shaped structure is used to support the landing platform body 11, and the other side forms a first connecting portion 1201. The end of the first connecting portion 1201 extends in a direction away from the connection side of the first connecting portion 1201 and the first connecting mating portion 33 to form a first positioning portion 1202.

[0038] In order to ensure the strength of the lifting and landing platform bracket 12, Figure 3As shown, a reinforcement plate may also be provided on the lifting and landing platform bracket 12, and a plurality of criss-crossing reinforcement ribs and weight-reducing holes for reducing the lifting and landing platform bracket 12 may be provided on the reinforcement plate; in addition, the first connecting portion 1201 may include one or more first connecting holes, and the first connecting mating portion 33 may include one or more first connecting mating holes that can be matched with the first connecting hole, and the first connecting hole and the first connecting mating hole correspond one to one so that the two can be connected by a first locking member such as a screw or a bolt, thereby achieving an effect of detachable connection between the first connecting portion 1201 and the first connecting mating portion 33.

[0039] In some embodiments, the cabinet module 3 includes a frame 35, the first connection matching portion 33 and the first positioning matching portion 34 are arranged on the frame 35, the first positioning matching portion 34 includes a stopper 3401, and the first positioning portion 1202 is stopped from top to bottom at the stopper 3401. While the stopper 3401 abuts against the first positioning portion 1202 to position the lifting and landing platform bracket 12, it can also play a role in supporting the lifting and landing platform module 1 to a certain extent, thereby ensuring the stability of the lifting and landing platform module 1 after being connected to the cabinet module 3. The stopper 3401 can be constructed in a variety of structures. The stopper 3401 can be constructed as a plate-like structure, directly fitting with the first positioning portion 1202. Alternatively, in some embodiments not shown, the stopper 3401 can be constructed as a groove with an opening facing upward, and the first positioning portion 1202 can be constructed as a columnar or block-like structure that matches the shape of the groove, so that the first positioning portion 1202 can be inserted into the groove, thereby ensuring the stability of the first positioning portion 1202 and the first positioning matching portion 34 after the two are connected. In addition, the first connection matching portion 33 can be constructed in any suitable manner, for example Figure 3 As shown, the first connection fitting portion 33 can form an L-shaped plate together with the first positioning fitting portion 34. Alternatively, in some embodiments not shown, the first connection fitting portion 33 and the first positioning fitting portion 34 can be two separate plates, or the first connection fitting portion 33 can be a part of the frame 35, but the present disclosure is not limited thereto.

[0040] In some other embodiments of the present disclosure, Figures 6 to 9 As shown, the grid module 2 can be connected to the cabinet module 3 in a detachable connection manner, and the remaining modules can be connected to the two in a detachable connection or an integral molding manner, and the present disclosure is not limited here. The side wall surface of the cabinet module 3 has a plug interface 36 connected to the cargo transfer channel 31, and the grid module 2 is plugged into the cabinet module 3 through the plug interface 36, that is, the cabinet module 3 and the grid module 2 are directly plugged together through the plug interface 36, which can make the disassembly and assembly of the two more convenient and quick.

[0041] In some embodiments, the grid module 2 may have a guide portion 21 for guiding the grid module 2 to be inserted into the plug-in port 36 and a second connection portion 22 for connecting to the cabinet module 3. The guide portion 21 can quickly insert the grid module 2 into the plug-in port 36, thereby improving the plug-in efficiency, and the second connection portion 22 can connect the grid module 2 to the cabinet module 3 after the grid module 2 is inserted into the plug-in port 36, thereby ensuring the stability of the two after the connection.

[0042] Among them, Fig. 9 As shown, the guide portion 21 includes a guide surface 2101, and the guide surface 2101 is inclined to the insertion direction of the grid module 2, so as to guide the grid module 2 to be inserted into the plug port 36, that is, in the process of inserting the grid module 2 into the plug port 36, the inclined guide surface 2101 can make the grid module 2 have a tendency to move into the plug port 36 by abutting against the inner side wall of the plug port 36, so that the grid module 2 can be quickly inserted into the plug port 36, thereby improving the plug-in efficiency. In addition, the guide portion 21 can also include a fitting surface connected to the guide surface 2101, and the fitting surface can fit with the inner side wall of the plug port 36 after the grid module 2 is inserted into the plug port 36, so as to ensure the stability of the grid module 2 after being inserted into the cabinet module 3.

[0043] In addition, the second connection part 22 is located on the side of the guide part 21 away from the cargo transmission channel 31 along the plug-in direction of the slot module 2, and the second connection part 22 includes a first connection plate 2201 and a second connection plate 2202 connected to each other, the first connection plate 2201 is attached to the outer wall of the slot module 2, and the second connection plate 2202 is attached to the cabinet module 3. The first connection plate 2201 may be provided with a first fixing hole, and similarly, the slot module 2 is provided with a second fixing hole corresponding to the first fixing hole, and the first connection plate 2201 is connected to the slot module 2 through a locking member that can pass through the first fixing hole and the second fixing hole, or the first connection plate 2201 and the slot module 2 are integrally formed; the second connection plate 2202 may be provided with a second connection hole, and the cabinet module 3 may be provided with a second connection matching hole corresponding to the second connection hole, and the second connection plate 2202 is connected to the cabinet module 3 through a second locking member that can pass through the second connection hole and the second connection matching hole, so that the slot module 2 and the cabinet module 3 can be detachably connected. The locking member may be a fastener such as a bolt or a nut.

[0044] In some embodiments of the present disclosure, the top cover module 4 can also be connected to the cabinet module 3 in a detachable manner, and the remaining modules can be connected to the two in a detachable manner or in an integrally formed manner, which is not limited in the present disclosure. Fig.10 and Fig.11As shown, the top cover module 4 may include a third connecting portion connected to a side of the cabinet module 3 close to the cargo transfer port 32, the third connecting portion is provided with a third connecting hole, and a side of the cabinet module 3 close to the cargo transfer port 32 is provided with a third connecting matching hole which can be arranged one-to-one with the third connecting hole, the top cover module 4 is connected to the cabinet module 3 by a third locking member which can pass through the third connecting hole and the third connecting matching hole, so that the top cover module 4 is detachably connected to the cabinet module 3.

[0045] It should be noted that the top cover of the top cover module 4 of the present disclosure can be constructed as any structure, as long as it can be moved relative to the cabinet module 3 to cover or expose at least part of the cargo transfer port 32, and the present disclosure does not limit its specific structure.

[0046] In some other embodiments of the present disclosure, Fig.12 and Fig.13 As shown, the cargo transfer module 5 includes a guide rail arranged along the extension direction of the cargo transmission channel 31 and a mechanical arm arranged on the guide rail for picking up and placing cargo, wherein the guide rail of the cargo transfer module 5 can also be connected to the interior of the cargo transmission channel 31 by means of a connecting hole and a locking piece, so that the cargo transfer module 5 and the cabinet module 3 can be detachably connected.

[0047] In order to facilitate the connection between the modules, the top cover module 4 of the present invention is connected to the top of the cabinet module 3, and the landing and taking-off platform module 1 is connected to the cabinet module 3 and is located on one side of the top cover module 4 to avoid the cargo transfer port 32 or the upper space of the top cover module 4, so as to facilitate the robotic arm to extend from the cargo transfer port 32 to grab the cargo on the landing and taking-off platform module 1 or the drone, or release the cargo to the landing and taking-off platform module 1.

[0048] In some embodiments, the slot module 2 is connected to the side wall of the cabinet module 3, and personnel can pick up goods from one side of the container. The lifting and landing platform module 1 of the present disclosure can be located above the slot module 2, so that the space above the side where personnel pick up goods can be used to arrange the lifting and landing platform module 1, so as to save the extra space occupied by the lifting and landing platform module 1 when it is arranged on the other side of the container, and to a certain extent reduce the space occupied by the entire container. Among them, the cabinet module 3 may include a frame 35, the top of the frame 35 forms a cargo transfer port 32, and the top cover module 4 is connected to the top of the frame 35, so that it is convenient for the cargo transfer module 5 to pick up and place the cargo transported by the drone through the cargo transfer port 32. In summary, the present disclosure exemplarily shows the disassembly, assembly and use process of the container.

[0049] In order to ensure the flexibility of container disassembly and assembly, the lifting and landing platform module 1, the opening module 2, the top cover module 4 and the cargo transfer module 5 of the present invention can be connected to the cabinet module 3 in a detachable manner. For example, when the lifting and landing platform module 1 is connected to the cabinet module 3, the first positioning portion 1202 will make the first connecting portion 1201 correspond to the first connecting matching portion 33 under the joint action of the stopper portion 3401, so that the lifting and landing platform module 1 and the cabinet module 3 can be detachably connected, and the efficiency of the disassembly and assembly of the two can be accelerated; when the opening module 2 is connected to the cabinet When the cabinet module 3 is connected, the compartment module 2 will be quickly plugged into the cabinet module 3 through the plug-in interface 36 under the action of the guiding surface 2101 of the guiding portion 21, and then be detachably connected to the cabinet module 3 through the second connecting plate 2202; when the top cover module 4 is connected to the cabinet module 3, the top cover module 4 can be detachably connected to the side of the cabinet module 3 close to the cargo transfer port 32 by fasteners such as bolts or screws; similarly, the cargo transfer module 5 can also be detachably connected to the inner side of the cargo transfer channel 31 of the cabinet module 3 by fasteners such as bolts or screws. After the above modules are connected, a container can be formed. When the container is in use, the drone will first transport the goods to the landing platform body 11 of the landing platform module 1. At this time, the top cover of the top cover module 4 is opened, and then the mechanical arm of the cargo transfer module 5 located in the cargo transmission channel 31 will move under the action of the guide rail. The mechanical arm passes through the cargo transmission port 32 and the top cover module 4 and obtains the goods, so as to bring the goods back to the cargo transmission channel 31 and put it into the compartment of the compartment module 2 for storage, so as to complete the cargo pick-up and placement operation. Similarly, after the mechanical arm grabs the goods in the compartment module 2, the goods can also be placed on the landing platform module 1 through the cargo transmission port 32 or directly placed on the drone on the landing platform module 1. The various modules that make up the container disclosed in the present invention can be conveniently and quickly combined together, and the corresponding modules can also be removed separately according to needs, which greatly improves the flexibility and efficiency of container disassembly and assembly, and is convenient for modular mass production; in addition, the volume of each module is small, which is convenient for the transportation of the container.

[0050] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0052] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A container, characterized in that: The method comprises a plurality of modules, at least two of which are detachably connected, and the plurality of modules comprises: A take-off and landing platform module, used for the drone to land and receive cargo from the drone or place cargo for the drone to take away; A slot module, used for storing the goods; The cabinet module has a cargo transfer channel and a cargo transfer port, wherein the cargo transfer channel is located between the cargo transfer port and the compartment module; a top cover module, comprising a top cover that can move relative to the cabinet module to shield or expose at least a portion of the cargo transfer opening; and A cargo transfer module is arranged in the cargo transfer channel, and is used to transfer the cargo between the compartment module and the take-off and landing platform module via the cargo transfer port.

2. The container according to claim 1, characterized in that: The lifting and landing platform module includes a lifting and landing platform body and a lifting and landing platform bracket connected to the lifting and landing platform body, the lifting and landing platform bracket includes a first connecting portion and a first positioning portion, the cabinet module includes a first connecting matching portion and a first positioning matching portion, the first positioning portion is docked with the first positioning matching portion to limit the position of the lifting and landing platform module relative to the cabinet module, and the first connecting portion and the first connecting matching portion are detachably connected.

3. The container according to claim 2, characterized in that: The cabinet module includes a frame, the first connecting fitting portion and the first positioning fitting portion are arranged on the frame, the first positioning fitting portion includes a stopper, and the first positioning portion stops at the stopper from top to bottom.

4. The container according to claim 1, characterized in that: The side wall surface of the cabinet module is provided with an insertion interface which is in communication with the cargo transmission channel, and the compartment module is plugged into the cabinet module through the insertion interface.

5. The container according to claim 4, characterized in that: The slot module comprises a guide portion and a second connection portion, wherein the guide portion is used to guide the slot module to be inserted into the plug port, and the second connection portion is used to be connected to the cabinet module.

6. The container according to claim 5, characterized in that: The guide portion comprises a guide surface, and the guide surface is inclined to the insertion direction of the slot module, so as to guide the slot module to be inserted into the plug-in port.

7. The container according to claim 5, characterized in that: The second connecting portion is located on the side of the guide portion away from the cargo transfer channel along the plug-in direction of the grid module, and the second connecting portion includes a first connecting plate and a second connecting plate that are connected. The first connecting plate is closely connected to the outer wall of the grid module, and the second connecting plate is closely connected to the cabinet module.

8. The container according to any one of claims 1 to 7, characterized in that: The top cover module is connected to the top of the cabinet module, the lifting and lowering platform module is connected to the cabinet module and is located on one side of the top cover module to avoid the cargo transfer port or the upper space of the top cover module, and the compartment module is connected to the side wall of the cabinet module.

9. The container according to claim 8, characterized in that: The take-off and landing platform module is located above the bayonet module.

10. The container according to claim 9, characterized in that: The top of the frame of the cabinet module forms the cargo transfer port, and the top cover module is connected to the top of the frame.

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