CN216735780U - Open-bottom container - Google Patents

Abstract

The utility model discloses an open-bottom container, which comprises an underframe, a bottom plate and a locking device, wherein the underframe is provided with a discharge hole; the bottom plate is pivotally arranged on the bottom frame and is provided with a pivoting end and a locking end which are pivoted with the bottom frame; the locking device comprises a plurality of locking elements and an actuating shaft for actuating the plurality of locking elements, the actuating shaft being movably arranged in the axial direction thereof or rotatably arranged about the axial centre line thereof in parallel with the pivot axis, the plurality of locking elements being arranged at intervals in the axial direction of the actuating shaft, each of the plurality of locking elements being movably arranged between a locking position in which it snaps into the locking end and an unlocking position in which it disengages from the locking end. According to the utility model, the bottom plate can be firmly and reliably locked to the underframe, and the safety of the inner space of the container after goods are carried or unloaded can be ensured. The locking device has the advantages of simple structure, flexible, simple and quick operation, low production and manufacturing cost, strong universality and the like.

Description

Open-bottom container

Technical Field

The utility model relates to the technical field of containers, in particular to an open-bottom container.

Background

With the generalization of container transportation, more and more bulk goods are transported and loaded and unloaded by containers, and the loading can be completed through an end door at the rear end or through a feed inlet at the open top end/top end; the unloading is mostly realized through an end door or an end discharge port; the corresponding end of the discharge opening is lifted by the aid of an external device, so that bulk cargos in the box can be discharged. No matter the end door is used for discharging materials or the end discharge opening is used for discharging materials, long time is needed for discharging the materials, and discharging efficiency is low.

In order to solve the problem of low unloading efficiency of the bulk container, some bulk containers adopt an open-bottom unloading mode, and for the open-bottom unloading, a rotatable bottom plate and a locking device for locking the bottom plate are required to be arranged on a bottom frame. The locking device of the prior open-bottom container is constructed into a connecting rod structure which is arranged at the side of the container, and the locking device is driven by a cylinder to lock and unlock the whole body. The locking device has complex integral structure, difficult cylinder driving, low operability and high production and manufacturing cost, occupies the lateral space of the container, is not beneficial to the transportation, stacking and the like of the container, and also has the influence on the external appearance of the container.

There is therefore a need for an open-bottom shipping container that at least partially addresses the above problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content of the present invention is not intended to define key features or essential features of the claimed solution, nor is it intended to be used to limit the scope of the claimed solution.

To at least partially solve the above problems, the present invention provides an open-bottom container comprising:

the bottom frame is provided with a discharge hole;

a base plate pivotably disposed to the chassis about a pivot axis between a closed position covering the spout and an open position opening the spout, the base plate having a pivot end pivotally coupled to the chassis and a locking end opposite the pivot end;

a locking device including a plurality of locking pieces and an actuating shaft for actuating the plurality of locking pieces, the actuating shaft being provided to the chassis movably in an axial direction thereof or rotatably about an axial center line thereof and the axial center line being parallel to the pivot axis, the plurality of locking pieces being arranged at intervals in the axial direction of the actuating shaft, and each of the plurality of locking pieces being provided movably between a locking position of being caught in the locking end and an unlocking position of being disengaged from the locking end.

Optionally, the locking element is pivotably arranged in a horizontal direction to the actuation axis, the locking element in the locked position being perpendicular to the actuation axis, the locking element in the unlocked position being inclined with respect to the actuation axis, the actuation axis being movably arranged in the axial direction.

Optionally, the locking device further includes a limiting member disposed on the bottom frame and spaced apart from the actuating shaft in the horizontal direction, the locking member is provided with an elongated guide hole, and the limiting member is located in the guide hole.

Optionally, the locking piece set up fixedly in the actuating shaft, the actuating shaft is followed axially movable sets up, the locking end is provided with the opening up and dodges the mouth, is located the locking piece of latched position is in dodge one side of mouth with the locking end joint is located the locking piece of unblock position with dodge a mouthful position and correspond.

Optionally, the locking member is perpendicular to the actuation axis.

Optionally, the locking member is movably disposed on the chassis in a direction perpendicular to the axial direction, and the locking member is connected to the actuating shaft via a transmission structure, and the actuating shaft is rotatably disposed around the axial centerline.

Optionally, the transmission structure includes a driving tooth and a driven tooth engaged with the driving tooth, the driving tooth is disposed on a circumferential side of the actuating shaft, and the driven tooth is disposed on a surface of the locking piece facing the actuating shaft.

Optionally, the chassis is provided with a mounting plate, the mounting plate is provided with guide walls at intervals, the guide walls are perpendicular to the actuating shaft, and the locking piece is positioned between two adjacent guide walls.

Optionally, the base plate is provided with a receiving structure at the locking end, the receiving structure has an opening facing the side of the locking device, and the locking member is snapped into the receiving structure through the opening.

Optionally, at least one end of the actuation shaft is an operative end extending out of the chassis and provided with a structure for cooperating with an auxiliary tool.

According to the locking device of the utility model, the plurality of locking pieces can be moved between the locking position and the unlocking position by means of external force pushing and pulling the actuating shaft along the axial direction thereof or rotating the actuating shaft around the axial center line thereof, thereby realizing the locking and unlocking of the bottom plate. Through a plurality of locking pieces, the bottom plate is firmly and reliably locked to the underframe, and the safety of the inner space of the container after goods are carried or unloaded can be ensured. The locking device has the advantages of simple structure, flexible, simple and quick operation, low production and manufacturing cost, strong universality and the like, and effectively utilizes the space in the bottom frame to arrange the locking device, so that the locking device is hidden at the bottom of the container and is not exposed, and the transportation, stacking and the like of the container are not influenced.

Drawings

The following drawings of the utility model are included to provide a further understanding of the utility model. The drawings illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.

In the drawings:

FIG. 1 is a perspective view of an open-bottom shipping container according to the present invention with portions of the side panels removed for internal visibility and the base panel at the bottom shelf for visibility of the locking device, the bottom panel being in an open position;

FIG. 2 is a partial schematic view of the chassis shown in FIG. 1 including a locking arrangement with the floor in a closed position and the latch in a locked position;

FIG. 3 is a partial schematic view of the locking device of the first embodiment of the present invention with the locking member in the locked position;

FIG. 4 is another partial schematic view of the locking device shown in FIG. 3 with the locking member in an unlocked position;

FIG. 5 is a partial schematic view of a locking device according to a second embodiment of the utility model, wherein the locking member is in the locked position;

FIG. 6 is another partial schematic view of the locking device shown in FIG. 5 with the locking member in an unlocked position;

FIG. 7 is a partial schematic view of a third embodiment of the locking device of the present invention with the locking member in the locked position;

fig. 8 is another partial schematic view of the locking device of fig. 7 with the locking member in an unlocked position.

Description of reference numerals:

10 chassis 11 discharge hole

12 bottom side beam 13 carrying part

14 bottom beam 15 base plate

16 slot 20 bottom plate

21 pivoting end 22 locking end

23 escape opening 24 receiving structure

100 locking device 110 locking piece

111 pilot hole 120 actuation axis

121 operating end 130 stopper

311 driving teeth 312 driven teeth

313 mounting plate 314 guide wall

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.

In the following description, a detailed description will be given in order to thoroughly understand the present invention. It is apparent that the implementation of the embodiments of the utility model is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the utility model, however, the utility model is capable of other embodiments in addition to those detailed.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal words such as "first" and "second" are referred to in this disclosure only as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for purposes of illustration only and are not limiting.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.

As shown in fig. 1, the present invention provides an open-bottom container that can be discharged from the bottom of the container.

Fig. 1 schematically shows the overall structure of a container, which, as can be seen from fig. 1, may comprise a front wall, two side walls, end doors arranged opposite the front wall, a base frame 10 at the bottom and a floor 20 arranged on the base frame 10. The underframe 10 may include two lengthwise extending bottom side beams 12 and a plurality of widthwise extending bottom cross beams 14. The bottom cross member 14 can be connected to the bottom side member 12. The top of the container can be provided with a feed inlet, so that the container is convenient to feed. For example, the top of the container is open to form the feed inlet, in which embodiment a removable tarpaulin or like cover may be used to cover the open top; alternatively, the container comprises a top wall from which the feed openings may be provided.

In order to achieve a discharge from the bottom of the container, the chassis 10 is provided with a discharge hatch 11, the floor 20 can be arranged at the discharge hatch 11, and the floor 20 can be pivoted about a pivot axis between a closed position covering the discharge hatch 11 and an open position leaving the discharge hatch 11 open. The floor 20 in the closed position is horizontal and can carry material, and the floor 20 in the open position is inclined downwardly, at which point the spout 11 is opened, so that it can be discharged from the spout 11. The chassis 10 may also be provided with load bearing portions 13, the load bearing portions 13 being located between adjacent bottom plates 20. The carrier 13 includes a base beam 14 and a base plate 15 provided on the base beam 14. The substrate 15 forms a generally flat carrying surface with the base plate 20 in the closed position. Optionally, a slot 16 may be provided in the carrier 13.

The container may include at least two floors 20. The chassis 10 is provided with at least two outlets 11. The bottom plate 20 can correspond one-to-one to the discharge ports 11. That is, each bottom plate 20 is used to cover one discharge port 11.

The container further comprises locking means 100 for locking the floor 20 to the chassis 10 after closing. The locking device 100 is provided to the chassis 10. The base plate 20 has a pivoting end 21 pivotally connected to the chassis 10 and a locking end 22 opposite the pivoting end 21. The locking end 22 of the base plate 20 is connected to the chassis 10 by a locking device 100.

Specifically, as shown in fig. 2, the locking device 100 may include a plurality of locking pieces 110 and an actuating shaft 120 for actuating the plurality of locking pieces 110. In one example, the actuation shaft 120 is movably provided to the base frame 10 in an axial direction thereof. Thus, the locking member 110 can be moved by moving the actuating shaft 120 horizontally. In another example, the actuation shaft 120 is rotatably disposed about its axial centerline to the undercarriage 10. Thereby, the locking member 110 can be moved by rotating the actuating shaft 120. The axial centerline of the actuation shaft 120 can be parallel to the pivot axis, with the actuation shaft 120 being located on the side of the locking end 22 of the base plate 20.

The plurality of locking members 110 may be arranged at intervals in the axial direction of the actuation shaft 120, for example, for the illustrated embodiment, the pivot axis of the floor 20 is parallel to the width direction of the open-bottom container, that is, the floor 20 is openable and closable in the length direction of the container. Thus, the actuating shaft 120 is provided along the width direction of the container, the plurality of locking pieces 110 are arranged at intervals along the width direction of the container, and the locking pieces 110 are provided with, for example, six. In this embodiment, one bottom plate 20 is locked and supported upward by six locking pieces 110. Of course, a desired number of locking members 110 may be provided depending on the size of the container.

Each of the plurality of locking members 110 is movably disposed between a locked position snapping into the locking end 22 and an unlocked position disengaging from the locking end 22. When the actuating shaft 120 is operated, the plurality of locking members 110 located on the shaft are moved. Specifically, when moving the bottom panel 20 to the closed position, it is necessary to first keep the locking member 110 in the unlocked position so as not to hinder the movement of the bottom panel 20; when the bottom plate 20 is located at the closed position, the actuating shaft 120 is operated to move the locking member 110 from the unlocked position to the locked position, and the locking member 110 is snapped into the bottom plate 20 to lock the bottom plate 20.

At least one end of the actuation shaft 120 may be an operative end 121. The handling end 121 can extend out of the chassis 10, emerging from the chassis 10, i.e. at the outer surface of the chassis 10 facing away from its center. Thus, the actuation shaft 120 can be easily operated to be actuated. For example, in the illustrated embodiment, the operating end 121 extends out of the bottom side member 12 and is exposed from the bottom side member 12. The actuation shaft 120 can be operated from the side of the container. The handling end 121 may be provided with a structure for cooperating with an auxiliary tool to easily interface with the auxiliary tool.

Fig. 3 and 4 show a first embodiment of a locking device 100.

In the first embodiment, the actuation shaft 120 is movably provided in the axial direction thereof, whereby the actuation shaft 120 is linearly movable in the horizontal direction; the locking member 110 is pivotably provided to the actuating shaft 120 in a horizontal direction, whereby the locking member 110 can be rotated in the horizontal direction. Fig. 3 shows the locking member 110 in the locked position and fig. 4 shows the locking member 110 in the unlocked position. The locking element 110 in the locked position may be perpendicular to the actuation axis 120 and have a projection in the horizontal plane that overlaps with the projection in the horizontal plane of the spout 11. The locking element 110 in the unlocked position may be inclined with respect to the actuation axis 120 and have a projection in the horizontal plane that does not overlap with the projection in the horizontal plane of the spout 11.

The locking device 100 may further include a limiting member 130. The stopper 130 is disposed on the base frame 10 and spaced apart from the actuating shaft 120 in a horizontal direction. The locking member 110 may be provided with an elongated guide hole 111. The limiting member 130 can be located in the guide hole 111.

When the actuating shaft 120 is pushed or pulled in the axial direction of the actuating shaft 120, one end of the locking member 110 linearly moves in the horizontal direction along with the actuating shaft 120, and at the same time, the locking member 110 is rotated in the horizontal direction with respect to the actuating shaft 120 by the stopper member 130 due to the stopper member 130 being in the guide hole 111, and finally the locking member 110 moves between the locking position and the unlocking position. The locking device 100 according to this embodiment can lock and unlock the bottom plate 20 by pushing or pulling the actuating shaft 120 in the axial direction of the actuating shaft 120.

Fig. 5 and 6 show a locking device 100 of a second embodiment.

In the second embodiment, the actuation shaft 120 is provided movably in the axial direction thereof, whereby the actuation shaft 120 can be moved in the horizontal direction; the locking member 110 can be fixedly provided to the actuating shaft 120, whereby the locking member 110 can linearly move in a horizontal direction together with the actuating shaft 120. The locking end 22 of the locking member 110 is provided with an escape opening 23 which is open upward so that the locking member 110 is snapped into the locking end 22 of the base plate 20 via the escape opening 23. Fig. 5 shows the locking member 110 in the locked position and fig. 6 shows the locking member 110 in the unlocked position. The locking member 110 in the locking position may be engaged with the locking end 22 at one side of the escape opening 23, and the locking member 110 in the unlocking position may correspond to the escape opening 23. Alternatively, the locking member 110 may be perpendicular to the actuation axis 120.

When the actuating shaft 120 is pushed or pulled in the axial direction of the actuating shaft 120, the locking member 110 is linearly moved in the horizontal direction integrally with the actuating shaft 120. When moving the bottom plate 20 to the closed position, the actuating shaft 120 is moved to keep the locking member 110 at the unlocked position, and when the bottom plate 20 is at the closed position, the locking member 110 is located just inside the escape opening 23. Then, the actuating shaft 120 is moved further, so that the locking member 110 moves from the escape opening 23 to one side of the escape opening 23, and the locking member 110 is located at the locking position and is clamped with the locking end 22. The locking device 100 according to this embodiment can lock and unlock the bottom plate 20 by pushing or pulling the actuating shaft 120 in the axial direction of the actuating shaft 120.

Fig. 7 and 8 show a locking device 100 of a third embodiment.

In the third embodiment, the actuation shaft 120 can be rotatably provided about its axial centerline, whereby the actuation shaft 120 rotates about its axial centerline; the locking member 110 can be movably provided to the base frame 10 in a direction perpendicular to the axial direction, whereby the locking member 110 is linearly moved in the horizontal direction. Fig. 7 shows the locking member 110 in the locked position and fig. 8 shows the locking member 110 in the unlocked position. The projection of the locking member 110 in the locking position on the horizontal plane overlaps with the projection of the discharge hatch 11 on the horizontal plane. The projection of locking member 110 in the unlocked position on the horizontal plane does not overlap the projection of spout 11 on the horizontal plane.

The locking member 110 may be connected to the actuating shaft 120 by a transmission structure. When the actuating shaft 120 rotates, the locking member 110 can be pushed to move linearly in the horizontal direction. The transmission structure may include a driving tooth 311 and a driven tooth 312 engaged with the driving tooth 311. The driving teeth 311 are provided on the circumferential side of the actuating shaft 120, and the driven teeth 312 are provided on the surface of the locking piece 110 facing the actuating shaft 120. The driving teeth 311 of the actuating shaft 120 are engaged with the driven teeth 312 of the locking member 110 to convert the rotation of the actuating shaft 120 into the linear motion of the locking member 110.

The chassis 10 may be provided with a mounting plate 313. The locking member 110 is movably disposed to the mounting plate 313. The mounting plate 313 is provided at intervals with guide walls 314, and the guide walls 314 may be perpendicular to the actuating shaft 120. The locking member 110 is located between two adjacent guide walls 314. The locking member 110 is kept moving in a straight line by the restraining action of the guide wall 314. In the illustrated embodiment, two locking members 110 may be provided to one mounting plate 313.

When the actuating shaft 120 is rotated about its axial center line, the actuating shaft 120 linearly moves the locking member 110 in a horizontal direction, i.e., between the locking position and the unlocking position, through the driving teeth 311 and the driven teeth 312 engaged with the driving teeth 311. The locking device 100 according to the present embodiment can lock and unlock the base plate 20 by rotating the actuating shaft 120 about its axial centerline.

For the above-described embodiment of the locking device 100, the base plate 20 may be provided with a receiving structure 24 at the locking end 22. For example, the receiving structure 24 is schematically illustrated in fig. 7 and 8 with dashed lines. The receiving structure 24 has an opening facing the side of the locking device 100, through which the locking element 110 can be snapped into the receiving structure 24. As one example, the base plate 20 may be provided with a base plate end beam at the locking end 22, with a through hole or groove cut in the base plate end beam to form a receiving structure 24 having an opening.

According to the locking device 100 of the present invention, the plurality of locking members 110 can be moved between the locking position and the unlocking position by pushing and pulling the actuating shaft 120 along the axial direction thereof or rotating the actuating shaft 120 about the axial center line thereof by means of an external force, thereby achieving locking and unlocking of the bottom plate 20. By locking the bottom plate 20 firmly and reliably to the base frame 10 by means of a plurality of locking members, the safety of the interior space of the box after the cargo is carried or unloaded can be ensured. The locking device 100 has the advantages of simple structure, flexible, simple and quick operation, low production and manufacturing cost, high universality and the like, and the space in the underframe 10 is effectively utilized to arrange the locking device 100, so that the locking device 100 is hidden at the bottom of the container and is not exposed, and the transportation, stacking and the like of the container are not influenced.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the utility model to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. An open-bottom shipping container, comprising:

the bottom frame is provided with a discharge hole;

a base plate pivotably disposed to the chassis about a pivot axis between a closed position covering the spout and an open position opening the spout, the base plate having a pivot end pivotally coupled to the chassis and a locking end opposite the pivot end;

a locking device including a plurality of locking pieces and an actuating shaft for actuating the plurality of locking pieces, the actuating shaft being provided to the chassis movably in an axial direction thereof or rotatably about an axial center line thereof and the axial center line being parallel to the pivot axis, the plurality of locking pieces being arranged at intervals in the axial direction of the actuating shaft, and each of the plurality of locking pieces being provided movably between a locking position of being caught in the locking end and an unlocking position of being disengaged from the locking end.

2. The open-bottom container according to claim 1, wherein the locking element is pivotally arranged in a horizontal direction to the actuation axis, the locking element in the locked position being perpendicular to the actuation axis, the locking element in the unlocked position being inclined with respect to the actuation axis, the actuation axis being movably arranged in the axial direction.

3. The open-bottom container according to claim 2, wherein the locking device further comprises a stopper provided to the bottom frame and spaced apart from the actuating shaft in the horizontal direction, the locking member being provided with an elongated guide hole, the stopper being located in the guide hole.

4. The open-bottom container of any one of claims 1 to 3, wherein the locking member is fixedly disposed on the actuating shaft, the actuating shaft is movably disposed along the axial direction, the locking end is provided with an avoidance port with an upward opening, the locking member located at the locking position is clamped with the locking end at one side of the avoidance port, and the locking member located at the unlocking position corresponds to the avoidance port.

5. The open-bottom container of claim 4, wherein the locking element is perpendicular to the actuation axis.

6. The open-bottom container according to any one of claims 1 to 3, wherein the locking element is movably arranged to the base frame in a direction perpendicular to the axial direction, the locking element being connected to the actuating shaft by a transmission structure, the actuating shaft being rotatably arranged around the axial center line.

7. The open-bottom container according to claim 6, wherein the transmission structure includes a driving tooth provided on a circumferential side of the actuating shaft and a driven tooth engaged with the driving tooth provided on a surface of the locking piece facing the actuating shaft.

8. An open-bottom container as claimed in claim 6, wherein the base frame is provided with mounting plates spaced apart by guide walls perpendicular to the actuation axis, the locking element being located between adjacent guide walls.

9. An open-bottom container as claimed in any one of claims 1 to 3, wherein the floor is provided at the locking end with a receiving structure having an opening facing the side of the locking means, through which opening the locking element is snapped into the receiving structure.

10. An open-bottom container as claimed in any one of claims 1 to 3, wherein at least one end of the actuating shaft is an operating end which extends out of the chassis and is provided with formations for engagement with auxiliary tools.

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