Automatic opening and closing mechanism for tail door of container and container
By designing the drive parts and multi-link mechanism on the container, the automatic switching of the tailgate is solved, and the safety hazards of the container tailgate require manual switches are met, the multi-point intermodal transport needs are maintained, and the container appearance standards are maintained.
Patent Information
- Application Number
- CN202510845397.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-08-08
AI Technical Summary
The existing container tailgate requires manual switches and cannot be automated, resulting in safety hazards in some use scenarios and exceeding the standard container specifications, making it impossible to achieve multi-point intermodal transport.
An automatic switch mechanism for the tailgate of the container is designed, using drive parts, multi-link mechanisms and hydraulic drives to cleverly avoid container corner parts, realize automatic switch of the tailgate and keep the container shape in line with standard specifications.
It realizes automatic switch of the container tailgate, avoids the safety hazards of manual switches, and meets the needs of land transportation and water ships, and has the advantage of multi-point intermodal transport.
Smart Images
Figure CN120440467A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of containers, and in particular to an automatic opening and closing mechanism for a tailgate of a container and the container. Background Art
[0002] The dimensions and structures of existing internationally used standard containers have strict standard specifications. Their tailgate structures are basically the same, basically consisting of two left and right door leaves. Each door leaf has two sets of locking rod devices with hooks on them, and the tailgate can rotate approximately 270°.
[0003] Conventional container tailgates can only be opened manually due to the unique structural standards of containers, which preclude the addition of any automated devices to achieve automatic door opening. However, with the widespread use of standard containers and their increasing application scenarios, the limitations of manual opening have also expanded.
[0004] In particular, with the continuous upgrading of domestic waste collection and transportation methods, large-scale garbage transfer stations have emerged. Large-scale garbage transfer stations adopt two methods: direct transportation and transfer. Direct transportation is adopted in places near waste disposal facilities, and transfer is adopted in other areas. In the transfer mode, containers have the advantages of convenient transportation and large loading capacity, and are equipped with very complete supporting facilities such as transportation and lifting. In this case, manual opening and closing of the container's tailgate will cause a series of problems. The composition of domestic waste is relatively complex. When the container is full, the domestic waste and sewage in the box will fall and flow out together when the tailgate is opened. At this time, the staff opening the door face the possibility of being tripped by the tailgate, hit by the domestic waste in the box, and splashed by sewage. Therefore, it is urgent to realize the automatic opening and closing of the container's tailgate.
[0005] The existing tailgate opening and closing mechanisms all ignore the external dimensions that exceed the provisions of the standard container specifications, turning the container into a non-standard container that does not meet the standard specifications. This non-standard container can only be transported by land and cannot be stacked or shipped by water, and has lost the multi-point transport advantages of the container. Summary of the Invention
[0006] In order to solve the above-mentioned problems, the present application provides an automatic opening and closing mechanism for the tailgate of a container and a container. The automatic opening and closing mechanism for the tailgate is installed within the external dimensions specified by the container standard specifications, and the movement process cleverly avoids the corner fittings of the container, thereby realizing the automatic opening and closing of the tailgate while ensuring that the external dimensions of the container comply with the container standard specifications. It can not only realize land transportation, but also realize the stacking and water shipping of containers, and has the advantage of multi-point transport.
[0007] Specifically, the present application provides an automatic opening and closing mechanism for a tailgate of a container, wherein the container includes a container body and a tailgate, and the automatic opening and closing mechanism for the tailgate includes:
[0008] A driving member is arranged on a side surface of the box body;
[0009] A first driving link, located on a side of the box, comprises a first link, a second link, and a third link; the first link is connected to the second link at an acute angle, and the second link is connected to the third link at an obtuse angle; one end of the first link is hinged to the driving member, and the other end of the first link is hinged to the side of the box; the end of the third link away from the second link is hinged to the side wall of the tailgate; and
[0010] A second driving link is located on the upper side of the box body and includes a fourth link and a fifth link; the fourth link and the fifth link are vertically connected; an end of the fourth link away from the fifth link is hinged to the upper side of the box body, and an end of the fifth link away from the fourth link is hinged to the tailgate;
[0011] Wherein, the driving member is used to drive the first connecting rod to rotate to realize automatic opening and closing of the tailgate.
[0012] Furthermore, an avoidance position is formed between the second connecting rod and the third connecting rod, and the avoidance position is used to avoid the corner piece of the box body when opening the tailgate.
[0013] Furthermore, the other end of the first connecting rod is hinged to the side of the box body through a first bearing seat, and the first bearing seat is fixed to the box body through a connecting piece. The connecting piece is inclined and when the tailgate is opened, the second connecting rod, the connecting piece and the tailgate are parallel.
[0014] Furthermore, one end of the fourth link away from the fifth link is hinged to the upper side of the box through a second bearing seat. When the tailgate is closed, the fifth link is parallel to the upper side of the box and the vertical connection between the fourth link and the fifth link is located at the upper edge corner of the box.
[0015] Furthermore, a notch is provided on the upper portion of the tailgate, and the notch is used to prevent the tailgate from interfering with the corner piece; the notch is formed with an inclined surface, and one end of the fifth connecting rod away from the fourth connecting rod is hinged on the inclined surface.
[0016] Furthermore, the driving member is a driving cylinder, which is hinged to the side of the box through a third bearing seat, and the protruding end of the driving cylinder is hinged to one end of the first connecting rod.
[0017] Furthermore, the width of the third connecting rod gradually decreases in a direction away from the second connecting rod.
[0018] Furthermore, the second driving connecting rod is located on the inner side of the corner piece of the box body.
[0019] In addition, the present application also provides a container, including a container body and a tailgate, and also includes the automatic opening and closing mechanism of the tailgate of the container as described above.
[0020] Furthermore, the tailgate automatic opening and closing mechanisms are symmetrically provided on the left and right sides of the box body, and the second driving connecting rod is located on the inner side of the corner piece of the box body.
[0021] Compared with the prior art, this application has the following beneficial effects:
[0022] This application realizes the automatic opening and closing of the tailgate without affecting the standard external dimensions of the container, and cleverly bypasses the position of the corner fittings of the container, so as not to interfere with the corner fittings of the container, thereby enabling the container to meet the convenient transportation methods of multi-point transport such as stacking, sea transportation, and land transportation.
[0023] This application utilizes a set of multi-link motion mechanisms to cleverly realize the automatic opening and closing of the container tail door. It is driven by hydraulics, the structure is stable and reliable, and no human intervention is required throughout the process. It truly realizes the automatic opening and closing of the container tail door while ensuring that the container's external dimensions remain unchanged, thereby avoiding the dangers and problems caused by manual opening and closing.
[0024] The overall structure of the tailgate automatic opening and closing mechanism of the present application is compact and reasonably arranged, which can effectively realize the automatic opening and closing of the tailgate. The cooperation between the connecting rods realizes a complete arc opening and closing path of the tailgate. The opening and closing process is stable, which can effectively realize the positioning and stability of the open and closed states of the tailgate. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0026] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.
[0027] Figure 1Schematic diagram of the closed state of the automatic opening and closing mechanism of the tailgate of the container in the embodiment of the present application;
[0028] Figure 2 Schematic diagram of the automatic opening and closing mechanism of the tailgate of a container in an embodiment of the present application in an open state;
[0029] Figure 3 This is a rear view of the container in the embodiment of the present application. DETAILED DESCRIPTION
[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0031] In the description of this application, it should be understood that the orientation or positional relationship indicated by terms and the like is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device, element, module, system, platform or device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. The following description of this application is only to be understood as a description of individual embodiments of the technical solution of this application. Other embodiments are not reflected in the following description, but it does not mean that this application excludes these other embodiments, and the technical solution of this application is not limited to the specific implementation methods described below, and the scope of protection of this application is not limited to only the specific implementation methods described below. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.
[0032] It should be noted that if the terms "first", "second", etc. appear in the specification and claims of this application and the above-mentioned drawings, the description is only used to distinguish similar objects and is not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or device comprising a series of units or modules or modules or components is not necessarily limited to those units or modules or modules or components clearly listed, but may include other components that are not clearly listed or inherent to these systems, products or devices.
[0033] The technical solution of the present application will be further explained below with reference to the accompanying drawings and through specific implementation methods.
[0034] In some embodiments, as Figure 1-3As shown, the present application provides an automatic opening and closing mechanism for the tailgate of a container, wherein the container 00 includes a box body 1 and a tailgate 2, and the automatic opening and closing mechanism for the tailgate includes a driving member 3, a first driving link 4 and a second driving link 5; wherein the driving member 3 is used to drive the first driving link 4, and the automatic opening and closing of the container tailgate is realized with the cooperation of the first driving link 4 and the second driving link 5.
[0035] Specifically, the driving member 3 is arranged on a side surface of the box body 1 .
[0036] The first driving link 4 is located on the side of the box body 1, and the first driving link 4 includes a first link 41, a second link 42 and a third link 43; the first link 41 is connected to the second link 42 at an acute angle, and the second link 42 and the third link 43 are connected at an obtuse angle; one end of the first link 41 is hinged to the driving member 3, and the other end of the first link 41 is hinged on the side of the box body 1; the end of the third link 43 away from the second link 42 is hinged on the side wall of the tailgate 2; an avoidance position 44 is formed between the second link 42 and the third link 43, and the avoidance position 44 is used to avoid the corner piece 11 of the box body 1 when opening the tailgate 2; the other end of the first link 41 is hinged to the side of the box body 1 through a first bearing seat 45, and the first bearing seat 45 is fixedly set on the box body 1 through a connecting member 46, and the connecting member 46 is inclined and when the tailgate 2 is opened, the second link 42, the connecting member 46 and the tailgate 2 are parallel, as shown in FIG. Figure 3 As shown; the width of the third link 43 gradually decreases in the direction away from the second link 42.
[0037] The second driving link 5 is located on the upper side of the box body 1 and on the inner side of the corner piece 11 of the box body 1. The second driving link 5 includes a fourth link 51 and a fifth link 52; the fourth link 51 and the fifth link 52 are vertically connected; the end of the fourth link 51 away from the fifth link 52 is hinged on the upper side of the box body 1, and the end of the fifth link 52 away from the fourth link 51 is hinged on the tailgate 2; the end of the fourth link 51 away from the fifth link 52 is hinged on the upper side of the box body 1 through the second bearing seat 53. When the tailgate 2 is closed, the fifth link 52 is parallel to the upper side of the box body 1 and the vertical connection between the fourth link 51 and the fifth link 52 is located at the upper edge corner of the box body 1. Figure 1-2 shown.
[0038] Specifically, the driving member 3 drives the first connecting rod 41, and the first connecting rod 41, the second connecting rod 42 and the third connecting rod 43 rotate together to open the tailgate 2. Since the fourth connecting rod 51 and the fifth connecting rod 52 limit the rotation of the tailgate 2, the tailgate 2 can be automatically opened and closed, and it is an arc opening or closing that meets the on-site requirements.
[0039] In some embodiments, as Figure 2 As shown, a notch 21 is provided on the upper portion of the tailgate 2 , and the notch 21 is used to prevent the tailgate 2 from interfering with the corner piece 11 ; the notch 21 forms a slope 22 , and one end of the fifth link 52 away from the fourth link 51 is hinged on the slope 22 .
[0040] In some embodiments, the driving member 3 is a driving cylinder, which is hinged to the side of the box body 1 through a third bearing seat 31 , and the protruding end of the driving cylinder is hinged to one end of the first connecting rod 51 .
[0041] The present application cleverly achieves that the drive member 3 neither exceeds the standard outer dimensions of the container 00 nor interferes with the corner fittings 11 of the container 00, allowing the tailgate 2 of the container 00 to open in a perfect arc. The tailgate 2 of the present application moves along with the first and second drive links 4 and 5. Its motion trajectory will change due to the length of the first and second drive links 4 and 5 and the fixed installation position of the first and second bearing seats 45 and 53. According to actual needs, the gap between the tailgate 2 and the box body 1 when closed can be adjusted by adjusting the length of the first and second drive links 4 and 5 and the installation position of the first and second bearing seats 45 and 53. This gap can be used to install sealing structures such as sealing strips, or to adjust the positional relationship between the tailgate 2 and the box body 1 when opened. The present application also allows the positions of the first and second bearing seats 45 and 53 to be fine-tuned according to the movement to obtain the desired motion trajectory of the tailgate 2.
[0042] Specifically, the driving member 3 of the present application is extended, so that the first driving link 4 rotates along the first bearing seat 45. The rotation of the first driving link 4 will drive the tailgate 2 to rotate. Since the second driving link 5 is installed on the upper part of the tailgate 2, when the tailgate 2 moves under the drive of the first driving link 4, the second driving link 5 will rotate with the second bearing seat 53 as the rotation center. At this time, the tailgate 2 as a whole is driven and restricted by the first driving link 4 and the second driving link 5, and opens in an arc motion. During the movement of the entire mechanism, since the movement stroke of the first driving link 4 is on the lower right side of the corner piece 11 of the container 00, the movement process will not interfere with the corner piece 11, and the second driving link 5 is installed in the middle of the box body 1, and will not interfere with the corner piece 11, so that the tailgate 2 perfectly avoids the restriction of the corner piece 11 of the container 00 during the overall movement.
[0043] like Figure 2As shown, the automatic opening and closing mechanism of the tailgate of the container of the present application does not exceed the length and height range of the container with the corner fitting 11 of the container 00 as the boundary after being installed on the container 00, and the automatic opening and closing mechanism of the tailgate of the container is symmetrically installed on the left and right sides, and there are driving cylinders on both sides. The synchronous drive of the left and right sides ensures the accuracy and reliability of the tailgate movement.
[0044] like Figure 2 As shown, after the tailgate 2 is opened by the automatic opening and closing mechanism of the container of the present application, Figure 3 It can be seen that the opening angle and position of the tailgate 2 can be different depending on the extension length of the driving member 3. In actual application, the extension length of the driving member 3 can be adjusted to a suitable length as needed to obtain the desired tailgate opening angle.
[0045] In some embodiments, the present application also provides a container 00, including a box body 1 and a tailgate 2, and also includes the tailgate automatic opening and closing mechanism of the container as described above; the tailgate automatic opening and closing mechanism is symmetrically arranged on the left and right sides of the box body 1, and the second drive link 5 is located on the inner side of the corner piece 11 of the box body 1.
[0046] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0047] The above-described embodiments only express several implementation methods of the present application and are only used to illustrate the technical solutions of the present application rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate from the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application. For ordinary technicians in this field, they can make several variations and improvements without departing from the concept of the present application, and these all fall within the scope of protection of the present application.
Claims
1. A container tailgate automatic opening and closing mechanism, the container comprising a container body and a tailgate, characterized in that: The tailgate automatic opening and closing mechanism comprises: A driving member is arranged on a side surface of the box body; A first driving link, located on a side of the box, comprises a first link, a second link, and a third link; the first link is connected to the second link at an acute angle, and the second link is connected to the third link at an obtuse angle; one end of the first link is hinged to the driving member, and the other end of the first link is hinged to the side of the box; the end of the third link away from the second link is hinged to the side wall of the tailgate; and A second driving link is located on the upper side of the box body and includes a fourth link and a fifth link; the fourth link and the fifth link are vertically connected; an end of the fourth link away from the fifth link is hinged to the upper side of the box body, and an end of the fifth link away from the fourth link is hinged to the tailgate; Wherein, the driving member is used to drive the first connecting rod to rotate to realize automatic opening and closing of the tailgate.
2. The automatic opening and closing mechanism for the tailgate of a container according to claim 1, characterized in that: An avoidance position is formed between the second connecting rod and the third connecting rod, and the avoidance position is used to avoid the corner piece of the box body when opening the tailgate.
3. The automatic opening and closing mechanism for the tailgate of a container according to claim 1, characterized in that: The other end of the first connecting rod is hinged to the side of the box body through a first bearing seat, and the first bearing seat is fixed to the box body through a connecting piece. The connecting piece is inclined and when the tailgate is opened, the second connecting rod, the connecting piece and the tailgate are parallel.
4. The automatic opening and closing mechanism for the tailgate of a container according to claim 3, characterized in that: One end of the fourth link away from the fifth link is hinged to the upper side of the box through a second bearing seat. When the tailgate is closed, the fifth link is parallel to the upper side of the box and the vertical connection between the fourth link and the fifth link is located at the upper edge corner of the box.
5. The automatic opening and closing mechanism for the tailgate of a container according to any one of claims 1 to 4, characterized in that: A notch is provided on the upper portion of the tailgate, and the notch is used to prevent the tailgate from interfering with the corner piece; the notch is formed with an inclined surface, and one end of the fifth connecting rod away from the fourth connecting rod is hinged on the inclined surface.
6. The automatic opening and closing mechanism for the tailgate of a container according to claim 5, characterized in that: The driving member is a driving oil cylinder, which is hinged to the side of the box body through a third bearing seat, and the protruding end of the driving oil cylinder is hinged to one end of the first connecting rod.
7. The automatic opening and closing mechanism for the tailgate of a container according to claim 1, characterized in that: The width of the third link gradually decreases in a direction away from the second link.
8. The automatic opening and closing mechanism for the tailgate of a container according to claim 1, characterized in that: The second driving connecting rod is located on the inner side of the corner piece of the box body.
9. A container, comprising a box body and a tailgate, characterized in that It also includes the automatic opening and closing mechanism for the tailgate of the container according to any one of claims 1 to 8.
10. The container according to claim 9, characterized in that: The tailgate automatic opening and closing mechanisms are symmetrically arranged on the left and right sides of the box body, and the second driving connecting rod is located on the inner side of the corner piece of the box body.