Semitrailer capable of self-discharging back-tipping container

Abstract

The utility model provides a semitrailer for self-dumping and back-tipping containers, and belongs to the field of transport vehicles. The utility model provides a semitrailer capable of self-discharging a rear-turning container. The semitrailer comprises a frame, the container and a jacking mechanism, the container is arranged on the frame, and the rear end of the container is rotationally connected with the rear end of the frame; the jacking mechanism is connected with the frame and the front end of the container and used for pushing the front end of the container to rise so that the container can be turned backwards. The utility model has the advantages of high unloading efficiency and strong practicability.

Description

Technical Field

[0001] The utility model belongs to the field of transport vehicles, and more specifically relates to a semi-trailer capable of self-unloading and rear-turning containers. Background Art

[0002] A flatbed semitrailer is a relatively common type of semitrailer. It can transport a variety of large and heavy equipment, such as construction machinery (loaders, excavators, etc.), large pipes, steel, and more. Because they lack the limitations of a flatbed box, flatbed semitrailers offer significant advantages when loading irregularly shaped cargo. Furthermore, as a relatively versatile transport vehicle, flatbed semitrailers can be used in conjunction with various loading aids or small boxes to transport a variety of cargo. While flatbed semitrailers have a certain degree of versatility, they do have some issues with compatibility with containers.

[0003] Loading and unloading cargo using a crane requires specific equipment at a specific site, and the operation is cumbersome, time-consuming, and increases labor and equipment rental costs. Forklift loading and unloading, however, is limited by the forklift's lifting height and load capacity, making it difficult to efficiently handle heavy and bulky cargo. Utility Model Content

[0004] The purpose of the utility model is to provide a semi-trailer capable of self-unloading and rear-turning containers, so as to solve the technical problem of low unloading efficiency in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a semi-trailer for self-unloading and flipping containers, including a frame, a container and a jacking mechanism, the container is arranged on the frame, and its rear end is rotatably connected to the rear end of the frame; the jacking mechanism is respectively connected to the frame and the front end of the container, and is used to push the front end of the container to rise so that the container can flip over, wherein the middle area of ​​the front end of the container is recessed inward to form an accommodating cavity, the accommodating cavity includes a fixed plate, and the fixed plate is arranged in the middle of the front end of the container; the jacking mechanism includes a first articulated seat, a second articulated seat, a casing and a multi-stage cylinder, the first articulated seat is installed on the fixed plate; the second articulated seat is installed at the front end of the frame; the lower end of the casing is rotatably connected to the first articulated seat; the cylinder body of the multi-stage cylinder is rotatably connected to the second articulated seat, and the cylinder column is connected to the casing, and when the multi-stage cylinder contracts, the cylinder column is located in the casing.

[0006] According to one embodiment of the present invention, the accommodating cavity is a rectangular parallelepiped structure, and the accommodating cavity is used to accommodate the jacking mechanism.

[0007] According to one embodiment of the present invention, the container includes a supporting frame, a bottom plate, a side plate, a rear door, a front baffle, a rear column, a rear cross beam, a front column, a front cross beam, an upper longitudinal beam and a lower longitudinal beam. The supporting frame is a square box structure, the bottom of the supporting frame is provided with a bottom plate, side plates are respectively provided on both sides, a rear door is provided at the rear, and a front baffle is provided at the front. The cross section of the front baffle is an "J"-shaped structure, two rear columns are respectively provided on the bottom plates on the left and right sides of the jacking mechanism, the upper and lower ends of the two rear columns are respectively connected by two rear cross beams, a fixing plate is installed between the two rear columns and the two rear cross beams, and the inner side surface of the fixing plate is aligned with the top surface of the "J"-shaped front baffle. The two front uprights are connected, and two front uprights are arranged in front of the frame parallel to the two rear uprights, and the upper and lower ends of the two front uprights are respectively connected by two front cross beams, and the upper ends of the two front uprights are respectively connected to the upper ends of the corresponding rear uprights through two upper longitudinal beams, and the lower ends of the two front uprights are respectively connected to the lower ends of the corresponding rear uprights through two lower longitudinal beams, and the top plate is fixedly connected to the upper ends of the front uprights and the rear uprights, and the guard plate is installed between the two front uprights and the two front longitudinal beams, and the front and rear ends of the two front uprights and the rear uprights are respectively connected to the two side faces of the "J" shape of the front baffle, and the top plate, fixed plate, guard plate and front baffle together enclose a accommodating cavity.

[0008] According to an embodiment of the present invention, the first articulated seat is installed on the outer side of the fixing plate; a positioning hole is provided in the middle of the front end of the second articulated seat frame, and the second articulated seat is installed in the positioning hole.

[0009] According to an embodiment of the present invention, a first through hole is provided on the first hinge seat, a first rotating shaft is provided at the lower end of the protective tube, and the first rotating shaft is rotatably installed in the first through hole.

[0010] According to an embodiment of the present invention, a second through hole is provided on the second hinge seat, a second rotating shaft is provided at the lower end of the cylinder body, and the second rotating shaft is rotatably installed in the second through hole.

[0011] According to one embodiment of the present invention, the casing is an inverted cylindrical structure, a mounting hole is provided on the top of the casing, and the cylinder column of the multi-stage oil cylinder is connected to the top of the casing via a threaded fastening structure passing through the mounting hole.

[0012] According to one embodiment of the present utility model, a traction pin connected to a tractor is provided below the front end of the vehicle frame, and a traveling device is provided below the rear end of the vehicle frame.

[0013] According to one embodiment of the present invention, a third hinge seat is detachably provided at the middle portion of the rear end of the frame, and the rear end of the base plate is connected to the rotating shaft of the third hinge seat.

[0014] According to one embodiment of the present invention, an installation channel is provided on the rear end of the frame and the third articulated seat, and a locking rod is vertically arranged in the installation channel. After the lower end of the locking rod is threadedly connected to the frame and passes through, a knob is provided. After the upper end of the locking rod is connected to the rotating shaft of the third articulated seat and passes through, a locking head is provided, and the locking head is adapted to the installation channel.

[0015] The beneficial effect of the semi-trailer for self-unloading and rear-flipping containers provided by the utility model is that, compared with the prior art, when it is necessary to unload the cargo in the container, the jacking mechanism is activated. The jacking mechanism starts working, and under the thrust of the jacking mechanism, the front end of the container gradually rises. Because the rear end of the container is rotatably connected to the rear end of the frame, the container will flip backward around the connection point at the rear end. As the jacking mechanism continues to work, the tilt angle of the container continues to increase until it reaches a suitable angle, which facilitates the cargo to slide out or be unloaded from the rear end of the container. After the cargo is unloaded, the jacking mechanism is controlled to retract, allowing the container to gradually return to its initial horizontal state placed on the frame, and the semi-trailer can drive normally again. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 A schematic diagram of a semi-trailer for dumping and unloading containers provided in an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of a loading state of a semi-trailer for dumping and tipping containers provided by an embodiment of the present utility model;

[0019] Figure 3 A schematic diagram of the position structure of the front and rear uprights, upper and lower longitudinal beams, and front and rear cross beams provided in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the positions of the lifting mechanism, front baffle, fixing plate, top plate and cover plate according to an embodiment of the present utility model;

[0021] Figure 5 This is a structural diagram of the jacking mechanism according to an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the position structure of the first hinge seat, the second hinge seat, the first rotating shaft, and the second rotating shaft of the present invention;

[0023] Figure 7 This is a schematic diagram of the position structure of the third articulated seat, frame and container of the utility model;

[0024] Figure 8 for Figure 7 An enlarged view of the local structure of B.

[0025] Among them, the reference numerals in the figures are as follows:

[0026] 10. Frame; 11. Container; 12. Front fender; 13. Side panel; 14. Rear door; 15. Bottom plate; 16. Rear pillar; 17. Rear crossbeam; 18. Fixing plate; 19. Front pillar; 20. Front crossbeam; 21. Upper longitudinal beam; 22. Lower longitudinal beam; 23. Top plate; 24. Guard plate; 30. Lifting mechanism; 31. First articulated seat; 32. Second articulated seat; 33. Casing; 34. Multi-stage cylinder; 40. First rotating shaft; 41. Second rotating shaft; 42. Fastening structure; 44. Third articulated seat; 46. Travel device; 45. Installation channel; 47. Locking rod; 48. Knob; 49. Lock head; 51. Towing pin. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described are only part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] It should be further explained that the drawings and implementation methods of the present invention mainly describe the concept of the present invention. On the basis of this concept, some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems, etc. The specific forms and settings may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a familiar manner.

[0029] When an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] The directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself. The terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate the directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be subsequently positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used herein are interpreted accordingly.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, and "several" means one or more, unless otherwise specifically defined.

[0033] The following describes a semi-trailer for dumping and self-unloading containers provided by the present invention.

[0034] like Figure 1 and Figure 4As shown, the first embodiment of the present invention provides a semi-trailer for self-unloading and rearward tipping containers, comprising a vehicle frame 10, a container 11, and a jacking mechanism 30. The container 11 is mounted on the vehicle frame 10, with its rear end pivotally connected to the rear end of the vehicle frame 10. The jacking mechanism 30 is connected to the vehicle frame 10 and the front end of the container 11, respectively, and is used to lift the front end of the container 11 to enable rearward tipping of the container 11. Among them, the middle area of ​​the front end of the container 11 is recessed inward to form an accommodating cavity, which includes a fixed plate 18, and the fixed plate 18 is arranged in the middle of the front end of the container 11; the jacking mechanism 30 includes a first articulated seat 31, a second articulated seat 32, a protective sleeve 33 and a multi-stage cylinder 34, the first articulated seat 31 is installed on the fixed plate 18; the second articulated seat 32 is installed at the front end of the frame 10; the lower end of the protective sleeve 33 is rotatably connected to the first articulated seat 31; the cylinder body of the multi-stage cylinder 34 is rotatably connected to the second articulated seat 32, and the cylinder column is connected to the protective sleeve 33. When the multi-stage cylinder 34 contracts, the cylinder column is located in the protective sleeve 33.

[0035] This embodiment provides a semi-trailer for dumping and rear-tilting containers. Compared to the prior art, the container 11 is placed horizontally on the vehicle frame 10, with its rear end pivotally connected to the rear end of the vehicle frame 10. At this point, the container 11 is in a horizontal position, allowing the entire semi-trailer to operate normally. When the cargo in the container 11 needs to be unloaded, the lifting mechanism 30 is activated. Once the lifting mechanism 30 begins operating, because its ends are connected to the vehicle frame 10 and the front end of the container 11, respectively, it generates an upward thrust acting on the front end of the container 11. Under the thrust of the lifting mechanism 30, the front end of the container 11 gradually rises. Because the rear end of the container 11 is pivotally connected to the rear end of the vehicle frame 10, the container 11 tilts backward about the connection point at the rear end. As the lifting mechanism 30 continues operating, the tilt angle of the container 11 increases until it reaches a desired angle. The tilt angle of the container 11 in a dumping and rear-tilting semi-trailer is generally between 30° and 75°, making it easier for cargo to slide out of or be unloaded from the rear end of the container 11. After the cargo is unloaded, the lifting mechanism 30 is operated to retract, so that the container 11 gradually returns to its initial horizontal position on the frame 10, and the semi-trailer can continue to travel normally.

[0036] The container 11 is tilted backward by the lifting mechanism 30, and the cargo's own gravity is utilized to enable the cargo to be conveniently and quickly unloaded from the rear end of the container 11. This unloading method does not require manual handling or the use of other complex unloading equipment to move the cargo out of the side or bottom of the container 11. It is particularly suitable for unloading some bulk cargo (such as sand, gravel, etc.) or cargo that can be tilted and slid out (such as some small block cargo), greatly improving the unloading efficiency. Under normal conditions, the container 11 is placed on the frame 10, and the semi-trailer can be used to transport various cargoes like an ordinary semi-trailer. The connection structure between the frame 10 and the container 11 ensures the stability of the container 11 during transportation, and can safely transport the cargo to the destination.

[0037] The first hinged seat 31 is mounted on the fixed plate 18. The first hinged seat 31 is rotatably connected to the casing 33, allowing the casing 33 to rotate to a certain extent about the first hinged seat 31. The second hinged seat 32 is mounted on the vehicle frame 10. This allows the jacking mechanism 30 to maintain a proper position on the vehicle frame 10. Furthermore, it is rotatably connected to the cylinder body of the multi-stage oil cylinder 34, providing a relatively stable support point for the cylinder, allowing the cylinder to rotate flexibly in this position.

[0038] During the extension and retraction of the multi-stage cylinder 34, significant forces are generated. The second articulated seat 32 distributes the applied force to the vehicle frame 10, preventing damage to the vehicle frame 10 caused by localized excessive stress. The protective sleeve 33 protects the cylinder column of the multi-stage cylinder 34. When the multi-stage cylinder 34 is retracted, the cylinder column is located within the protective sleeve 33, protecting it from external damage.

[0039] like Figures 3 to 6 As shown, the middle area at the front end of the container 11 is recessed inward to form a accommodating cavity. The accommodating cavity is a rectangular parallelepiped structure and is used to accommodate the lifting mechanism 30. The accommodating cavity provides a relatively enclosed space for the lifting mechanism 30. During the operation of the semi-trailer, it can prevent external debris from colliding with the lifting mechanism 30, reducing the risk of damage to the lifting mechanism 30 due to external objects. It also prevents the lifting mechanism 30 from being exposed to adverse weather conditions, such as prolonged sun exposure and rain, thereby protecting its internal components. In addition, accommodating the lifting mechanism 30 in the recessed area at the front end of the container 11 effectively utilizes the space within the container 11. Compared to installing the lifting mechanism 30 in other locations, which may occupy additional space, this design makes the overall structure of the semi-trailer more compact. The presence of the lifting mechanism 30 does not occupy excessive space on the sides or bottom of the frame 10, thereby allowing for better planning of the layout of other vehicle components and cargo loading space.

[0040] like Figures 3 to 6As shown, the utility model provides a specific embodiment based on the first embodiment as follows: the container 11 includes a supporting frame, a bottom plate 15, a side plate 13, a rear door 14, a front baffle 12, a rear column 16, a rear cross beam 17, a front column 19, a front cross beam 20, an upper longitudinal beam 21, a lower longitudinal beam 22, a guard plate 24, and a top plate 23. The supporting frame is a square box structure, the bottom of the supporting frame is provided with a bottom plate 15, side plates 13 are provided on both sides, a rear door 14 is provided at the rear, and a front baffle 12 is provided at the front. The cross section of the front baffle 12 is a "J" structure, and two rear columns 16 are respectively provided on the bottom plate 15 on the left and right sides of the jacking mechanism 30. The upper and lower ends of the two rear columns 16 are respectively connected by two rear cross beams 17. The fixing plate 18 is installed between the two rear columns 16 and the two rear cross beams 17, and is fixed. The inner side surface of the plate 18 is connected to the top surface of the front fender 12 in the shape of an "J". Two front pillars 19 are arranged in front of the frame 10 parallel to the two rear pillars 16. The upper and lower ends of the two front pillars 19 are respectively connected by two front cross beams 20. The upper ends of the two front pillars 19 are respectively connected to the upper ends of the corresponding rear pillars 16 through two upper longitudinal beams 21. The lower ends of the two front pillars 19 are respectively connected to the lower ends of the corresponding rear pillars 16 through two lower longitudinal beams 22. The top plate 23 is fixedly connected to the upper ends of the front pillars 19 and the rear pillars 16. The guard plate 24 is installed between the two front pillars 19 and the two front longitudinal beams. The front and rear ends of the two front pillars 19 and the rear pillars 16 are respectively connected to the two side surfaces of the "J" shape of the front fender 12. The top plate 23, the fixed plate 18, the guard plate 24 and the front fender 12 together enclose a accommodating cavity.

[0041] The supporting frame, a square box structure, provides the basic framework for the entire container 11. It not only supports the weight of the cargo but also ensures that the container 11 maintains its stable shape even when loaded with cargo of varying weights and shapes, preventing deformation. The side panels 13, front baffle 12, and rear door 14 on either side effectively protect the cargo from the external environment. The side panels 13 prevent the cargo from side impacts and crushing during transport, while the front baffle 12 and rear door 14 prevent the cargo from falling from the front or back.

[0042] The upper and lower ends of the two front columns 19 are connected by two front crossbeams 20, and their upper ends are connected to the upper ends of the corresponding rear columns 16 via two upper longitudinal beams 21, and their lower ends are connected to the lower ends of the corresponding rear columns 16 via two lower longitudinal beams 22. This crisscrossing beam-column connection constitutes the main structure of the accommodating cavity. The top plate 23, fixed plate 18, guard plate 24, and front baffle 12 are fixed together around the perimeter of the main structure of the accommodating cavity to form the accommodating cavity. This accommodating cavity provides a relatively closed space for the jacking mechanism 30, preventing the jacking structure from being disturbed or damaged by external factors (such as bad weather, collisions with debris, etc.).

[0043] like Figures 4 to 6 As shown, the present invention provides a specific embodiment based on the first embodiment as follows: the first articulated seat 31 is installed on the outer surface of the fixed plate 18; a positioning hole is provided in the middle of the front end of the frame 10, and the second articulated seat 32 is installed in the positioning hole; the lower end of the protective tube 33 is rotatably connected to the first articulated seat 31; the cylinder body of the multi-stage oil cylinder 34 is rotatably connected to the second articulated seat 32, and the cylinder column is connected to the protective tube 33. When the multi-stage oil cylinder 34 contracts, the cylinder column is located in the protective tube 33.

[0044] The bottom of the first hinged seat 31 is mounted on the outer surface of the fixed plate 18. The first hinged seat 31 is rotatably connected to the casing 33, allowing the casing 33 to rotate to a certain extent about the first hinged seat 31. A positioning hole is provided in the middle of the front end of the vehicle frame 10, and the second hinged seat 32 is installed in this positioning hole. This ensures that the lifting mechanism 30 is properly positioned on the vehicle frame 10.

[0045] like Figure 6 As shown, the present invention provides a further embodiment based on the first embodiment as follows: a first through hole is provided on the first hinge seat 31, a first rotating shaft 40 is provided at the lower end of the casing 33, and the first rotating shaft 40 is rotatably mounted in the first through hole. A second through hole is provided on the second hinge seat 32, and a second rotating shaft 41 is provided at the lower end of the cylinder body, and the second rotating shaft 41 is rotatably mounted in the second through hole.

[0046] When the multi-stage hydraulic cylinder 34 begins operating and its cylinder column extends or retracts, it exerts a force on the casing 33. A first rotating shaft 40 at the lower end of the casing 33 is rotatably mounted within the first through-hole of the first hinged seat 31. The casing 33 can rotate about the first rotating shaft 40, reducing component wear caused by localized stress concentration during the container 11's backward rollover. Furthermore, because a second rotating shaft 41 at its lower end is rotatably mounted within the second through-hole of the second hinged seat 32, the cylinder body can flexibly rotate about the second rotating shaft 41, thereby ensuring a smooth lifting process.

[0047] And because the first rotating shaft 40 is located at the lower end of the protective tube 33, compared with the method in which the first hinge seat 31 is directly connected to the end of the cylinder column for rotation, the method of connecting the first rotating shaft 40 at the lower end of the protective tube 33 to the first hinge seat 31 for rotation lowers the position of the hinge point. The advantage is that when the multi-stage oil cylinder 34 is working, the possibility of interference between the cylinder column and the lower crossbeam is reduced.

[0048] like Figures 1 to 6As shown, the present invention provides a further specific embodiment based on the first embodiment as follows: the casing 33 is an inverted cylindrical structure with a mounting hole provided at the top of the casing 33. The cylinder column of the multi-stage oil cylinder 34 is connected to the top of the casing 33 via a threaded fastening structure 42 that passes through the mounting hole. The inverted cylindrical structure of the casing 33 provides comprehensive protection for the cylinder column of the multi-stage oil cylinder 34. By providing a mounting hole at the top of the casing 33 and using the threaded fastening structure 42 to connect the cylinder column to the top of the casing 33, this connection method has high tightness and reliability. Furthermore, the cylindrical casing 33 is relatively compact and neat in structure, surrounding the cylinder column and making efficient use of space.

[0049] like Figures 1 to 8 As shown, the present invention provides a further embodiment based on the first embodiment as follows: a towing pin 51 connected to a tractor is provided below the front end of the frame 10, and a running gear 46 is provided below the rear end of the frame 10. During driving, the power of the tractor is transmitted to the semi-trailer frame 10 through the towing pin 51, and at the same time, cooperates with the running gear 46 to drive the entire semi-trailer forward or backward.

[0050] like Figures 7 and 8 As shown, the present invention provides a further specific embodiment based on the first embodiment as follows: a third articulated seat 44 is detachably provided at the middle portion of the rear end of the vehicle frame 10, and the rear end of the base plate 15 is connected to the pivot axis of the third articulated seat 44. When the lifting mechanism 30 begins to operate and applies an upward force to the front end of the container 11, the rear end of the container 11 begins to flip backward, centered around the pivot axis of the third articulated seat 44, achieving a self-unloading function. Because the third articulated seat 44 is detachable, when the container 11 is no longer needed, it can be removed. At this point, the vehicle frame 10 can be used as a normal flatbed semi-trailer, further enhancing the practicality of the semi-trailer.

[0051] like Figures 7 and 8 As shown, the present invention provides a specific embodiment based on the first embodiment as follows: a mounting channel 45 is provided on the rear end of the frame 10 and the third hinge seat 44, and a locking rod 47 is vertically arranged in the mounting channel 45. After the lower end of the locking rod 47 is threadedly connected to the frame 10 and passes through, a knob 48 is provided. After the upper end of the locking rod 47 is connected to the rotating shaft of the third hinge seat 44 and passes through, a locking head 49 is provided, and the locking head 49 is adapted to the mounting channel 45.

[0052] During installation of the third hinge seat 44, the locking rod 47 is located in the mounting channel 45 between the rear end of the vehicle frame 10 and the third hinge seat 44. The lower end of the locking rod 47 passes through the vehicle frame 10 and is connected to the vehicle frame 10 via threads. By rotating the knob 48, the locking rod 47 gradually moves upward, driven by the threads. Once the upper end of the locking rod 47 passes through the third hinge seat 44 and reaches the desired position, the locking head 49 acts to position the locking rod 47 and prevent it from dislodging from the third hinge seat 44. In this way, the locking rod 47 securely connects the third hinge seat 44 to the vehicle frame 10, completing the installation of the third hinge seat 44. To remove the third hinge seat 44, the knob 48 is rotated in the opposite direction, causing the locking rod 47 to move downward, driven by the threads. As the locking rod 47 moves downward, the locking head 49 gradually withdraws from the third hinge seat 44 until the locking rod 47 is completely free of the third hinge seat 44. At this point, the third hinged seat 44 can be removed from the vehicle frame 10 for repair, replacement, or other operations. This method of controlling the up and down movement of the locking rod 47 by rotating the knob 48 facilitates the removal process of the third hinged seat 44. Compared with the existing technology, this removal method is simple, fast, and highly versatile.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0055] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

Claims

1. A semi-trailer for dumping containers, characterized in that: include: Frame (10); A container (11) is arranged on the vehicle frame (10), and a rear end thereof is rotatably connected to a rear end of the vehicle frame (10); A lifting mechanism (30) is connected to the vehicle frame (10) and the front end of the container (11), respectively, and is used to push the front end of the container (11) to rise so as to cause the container (11) to flip backward; The front middle area of ​​the container (11) is recessed inward to form a receiving cavity, and the receiving cavity includes a fixing plate (18), and the fixing plate (18) is arranged in the middle of the front end of the container (11); The lifting mechanism (30) comprises: A first hinge seat (31) is mounted on the fixing plate (18); A second hinge seat (32) is mounted on the front end of the vehicle frame (10); A casing (33), the lower end of which is rotatably connected to the first hinge seat (31); A multi-stage oil cylinder (34) is rotatably connected to the second hinge seat (32), and a cylinder column is connected to the casing (33). When the multi-stage oil cylinder (34) contracts, the cylinder column is located in the casing (33).

2. The semi-trailer for dumping and tipping containers according to claim 1, characterized in that: The accommodating cavity is a rectangular parallelepiped structure, and is used to accommodate the lifting mechanism (30).

3. The semi-trailer for dumping and tipping containers according to claim 2, characterized in that: The container (11) comprises a supporting frame, a bottom plate (15), side plates (13), a rear door (14), a front baffle (12), a rear column (16), a rear crossbeam (17), a front column (19), a front crossbeam (20), an upper longitudinal beam (21), a lower longitudinal beam (22), a top plate (23) and a guard plate (24). The supporting frame is a square box structure. The bottom of the supporting frame is provided with a bottom plate (15), the two sides are provided with side plates (13), and the rear is provided with a rear door (14). , a front baffle (12) is provided in front, the cross section of the front baffle (12) is a "F"-shaped structure, two rear columns (16) are respectively provided on the bottom plate (15) on the left and right sides of the jacking mechanism (30), the upper and lower ends of the two rear columns (16) are respectively connected by two rear cross beams (17), a fixing plate (18) is installed between the two rear columns (16) and the two rear cross beams (17), and the inner side surface of the fixing plate (18) is in contact with the inner side surface of the front baffle (12). The top surface of the vehicle frame (10) is connected to the top of the Chinese character "J", and two front columns (19) are arranged in front of the vehicle frame (10) parallel to the two rear columns (16). The upper and lower ends of the two front columns (19) are connected by two front cross beams (20), the upper ends of the two front columns (19) are connected to the upper ends of the corresponding rear columns (16) by two upper longitudinal beams (21), and the lower ends of the two front columns (19) are connected to the corresponding rear columns (16) by two lower longitudinal beams (22). ), the top plate (23) is fixedly connected to the upper ends of the front pillars (19) and the rear pillars (16), the guard plate (24) is installed between the two front pillars (19) and the two front longitudinal beams, the front and rear ends of the two front pillars (19) and the rear pillar (16) are respectively connected to the two side surfaces of the "J" shape of the front baffle (12), and the top plate (23), the fixed plate (18), the guard plate (24) and the front baffle (12) are together surrounded to form the accommodating cavity.

4. The semi-trailer for dumping and tipping containers according to claim 3, characterized in that: described The first hinge seat (31) is mounted on the outer side of the fixing plate (18); a positioning hole is provided in the middle of the front end of the vehicle frame (10), and the second hinge seat (32) is mounted in the positioning hole.

5. The semi-trailer for dumping and tipping containers according to claim 4, characterized in that: A first through hole is provided on the first hinge seat (31), and a first rotating shaft (40) is provided at the lower end of the protective tube (33), and the first rotating shaft (40) is rotatably installed in the first through hole.

6. The semi-trailer for dumping and unloading containers according to claim 4, characterized in that: A second through hole is provided on the second hinge seat (32), and a second rotating shaft (41) is provided at the lower end of the cylinder body. The second rotating shaft (41) is rotatably mounted in the second through hole.

7. The semi-trailer for dumping and tipping containers according to claim 5, characterized in that: The casing (33) is an inverted cylindrical structure. A mounting hole is provided at the top of the casing (33). The cylinder column of the multi-stage oil cylinder (34) is connected to the top of the casing (33) via a threaded fastening structure (42) passing through the mounting hole.

8. The semi-trailer for dumping and tipping containers according to claim 1, characterized in that: A traction pin (51) connected to a tractor is provided below the front end of the vehicle frame (10), and a running device (46) is provided below the rear end of the vehicle frame (10).

9. The semi-trailer for dumping and tipping containers according to claim 3, characterized in that: A third hinge seat (44) is detachably provided at the middle portion of the rear end of the vehicle frame (10), and the rear end of the base plate (15) is connected to the rotating shaft of the third hinge seat (44).

10. The semi-trailer for dumping and tipping containers according to claim 9, characterized in that: A mounting channel (45) is provided on the rear end of the vehicle frame (10) and the third hinge seat (44), and a locking rod (47) is vertically provided in the mounting channel (45). After the lower end of the locking rod (47) is threadedly connected to and penetrates the vehicle frame (10), a knob (48) is provided. After the upper end of the locking rod (47) is connected to and penetrates the rotating shaft of the third hinge seat (44), a locking head (49) is provided. The locking head (49) is adapted to the mounting channel (45).

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