Trailer with multifunctional bin fence door and opening and closing hinge

Abstract

The utility model discloses a trailer provided with a multifunctional bin fence door and an opening and closing hinge, which are used for solving the problem that the opening mode of the bin fence door is single. An opening and closing hinge specially designed and developed is installed on the lower edges of bin fence doors on the two sides of a trailer box body so that the bin fence doors of the trailer can be opened. The bin door locking assemblies are installed on the two sides of the upper ends of the bin fence doors on the two sides of the trailer box body and used in cooperation with the opening and closing hinges, and therefore the bin fence doors of the trailer can be opened conveniently. When a vehicle is unloaded, the hinge shaft locking plate of the opening and closing hinge is opened, the vehicle side tipping function is started, oil is automatically injected into the lifting hydraulic oil cylinder, side tipping of the trailer box body can be automatically controlled, and goods can be easily unloaded. And meanwhile, the downward turning operation can be realized only by opening the bin door locking assembly, so that the bin fence door has the multifunctional configuration of downward turning and side tilting.

Description

Technical Field

[0001] The utility model relates to the technical field of improved trailer compartment door structures, in particular to a novel trailer compartment door. Background Art

[0002] Since its birth in the mid-19th century, the tractor trailer has gone through a century of development. In order to achieve efficient loading and unloading of trailers, the structure of the trailer has been continuously improved.

[0003] Trailers have gates on both sides. Generally, these gates are designed to swing downward, meaning their lower edges are pivotally connected to the trailer compartment via hinged assemblies, and their upper sides are connected by latching assemblies for opening and closing. This structure makes unloading cargo from the trailer inconvenient, requiring mechanical or manual means to open the gates and flip them downward. Furthermore, cleaning the cargo from the compartment floor is inconvenient, making it difficult to unload cargo mechanically. Manual cleaning is required, resulting in high labor intensity, a time-consuming and labor-intensive process, and low efficiency. This is particularly challenging when unloading bulk cargo. Utility Model Content

[0004] The purpose of the present invention is to provide a trailer equipped with a multifunctional barn door and an opening and closing hinge in order to solve the above-mentioned problem, which is used to solve the problem of a single opening method of the barn door. Details are described below.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A trailer equipped with a multifunctional barn door comprises a vehicle frame, a box body, a lifting hydraulic cylinder, an opening and closing hinge, and a door locking assembly, wherein the box body is located on the vehicle frame, and a lifting hydraulic cylinder is installed between the box body and the vehicle frame, and the box body has a side tilting motion under the lifting action of the lifting hydraulic cylinder; a barn door is provided on the side of the box body, and the lower edge of the barn door is connected to the bottom warehouse plate by an opening and closing hinge, and the barn door is connected to the box body at the upper side corner by a door locking assembly; the characteristics are:

[0007] The opening and closing hinge includes a hinge shaft locking plate, a hinge shaft fixing plate, a limit clamping plate and a steel pin, wherein the hinge shaft fixing plate includes a welding flat plate portion, a first I-shaped notch and a U-shaped slot, wherein the welding flat plate portion is welded and fixed to the fence door, a first I-shaped notch is provided at the center of the lower middle portion of the welding flat plate portion, and a U-shaped slot is provided at the lower edge of the welding flat plate portion;

[0008] The hinge shaft locking plate includes a rotating flat plate portion, a second I-shaped notch, and a round pin, wherein the second I-shaped notch is provided at a central position in the lower middle portion of the rotating flat plate portion, a round pin is fixedly provided at the lower edge of the rotating flat plate portion, and the middle portion of the round pin spans the second I-shaped notch, and the hinge shaft locking plate and the hinge shaft fixing plate are hingedly connected by a steel pin;

[0009] The limiting card plate is welded to the edge of the bottom plate of the box body, and an I-shaped slot is formed between the limiting card plate and the box body. The I-shaped slot is engaged with the middle part of the round pin in the hinge shaft locking plate. The limiting card plate is smaller than the width of the first I-shaped notch and the second I-shaped notch in the thickness direction.

[0010] Furthermore, the stall door is a plate structure or a grille structure.

[0011] Furthermore, the hinge shaft locking plate and the hinge shaft fixing plate are both stamped steel plate parts.

[0012] Furthermore, a control point is provided on the hinge shaft locking plate, and the control point is an outward folding body.

[0013] A hinge, characterized in that: the hinge comprises a hinge shaft locking plate, a hinge shaft fixing plate, a limit clamping plate and a steel pin, wherein the hinge shaft fixing plate comprises a welding flat plate portion, a first I-shaped notch and a U-shaped slot, wherein the welding flat plate portion is welded and fixed to the fence door, the first I-shaped notch is provided at the center of the lower middle portion of the welding flat plate portion, and the U-shaped slot is provided at the lower edge of the welding flat plate portion;

[0014] The hinge shaft locking plate includes a rotating flat plate portion, a second I-shaped notch, and a round pin, wherein the second I-shaped notch is provided at a central position in the lower middle portion of the rotating flat plate portion, a round pin is fixedly provided at the lower edge of the rotating flat plate portion, and the middle portion of the round pin spans the second I-shaped notch, and the hinge shaft locking plate and the hinge shaft fixing plate are hingedly connected by a steel pin;

[0015] The limiting card plate is welded to the edge of the bottom plate of the box body, and an I-shaped slot is formed between the limiting card plate and the box body. The I-shaped slot is engaged with the middle part of the round pin in the hinge shaft locking plate. The limiting card plate is smaller than the width of the first I-shaped notch and the second I-shaped notch in the thickness direction.

[0016] Furthermore, the hinge shaft locking plate and the hinge shaft fixing plate are both stamped steel plate parts.

[0017] Furthermore, a control point is provided on the hinge shaft locking plate, and the control point is an outward folding body.

[0018] The beneficial effect is that when the vehicle is unloading, the hinge shaft locking plate of the opening and closing hinge is opened, the vehicle's roll function is activated, and oil is automatically injected into the lifting hydraulic cylinder, which can automatically control the trailer's roll and easily unload the cargo. At the same time, the downward tilt operation can be achieved simply by opening the door locking assembly, making the door multifunctional with downward tilt and side tilt functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a side view of the trailer;

[0021] Figure 2 yes Figure 1 A in the middle shows a partial enlarged view;

[0022] Figure 3 This is the front view of the trailer;

[0023] Figure 4 The barn door is flipped down and opened;

[0024] Figure 5 This is a schematic diagram of the lower edge of the barn door after the hinge is opened;

[0025] Figure 6 This is a schematic diagram of the trailer compartment's tilting state;

[0026] Figure 7 This is a structural diagram of the opening and closing hinge.

[0027] Figure 8 It is a combination diagram of the locking assembly;

[0028] Figure 9 It is a three-dimensional diagram of the limiting card plate;

[0029] Figure 10 is a three-dimensional diagram of a hinge shaft locking plate;

[0030] Figure 11 This is a three-dimensional view of the hinge shaft fixing plate.

[0031] 10 frames,

[0032] 20 boxes, 21 warehouse doors,

[0033] 30 lifting hydraulic cylinder,

[0034] 40 opening and closing hinges,

[0035] 41 hinge shaft locking plate, 411 rotating flat plate portion, 412 second I-shaped notch, 413 round pin, 414 control point, 415 first steel pin installation point,

[0036] 42 hinge shaft fixing plate, 421 welding flat plate portion, 422 first I-shaped notch, 423 U-shaped slot, 424 first steel pin installation point,

[0037] 43 limit card plate, 431 I-shaped card slot,

[0038] 44 steel pins,

[0039] 50 Warehouse door locking assembly. DETAILED DESCRIPTION

[0040] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0041] See also Figures 1-11 As shown, the utility model provides a novel trailer compartment door structure and discloses a special opening and closing hinge design.

[0042] A trailer equipped with a multifunctional barn door comprises a frame 10, a box body 20, a lifting hydraulic cylinder 30, an opening and closing hinge 40, and a barn door locking assembly 50.

[0043] As an optional embodiment, the box of the trailer is located on the trailer frame, a rotating axle pin is installed, and a lifting hydraulic cylinder 30 is installed between the box and the frame. Under the lifting action of the lifting hydraulic cylinder, the box has a tilting movement relative to the frame.

[0044] The frame 10 is a straight beam assembly and is the skeleton part that supports the trailer body.

[0045] The lifting hydraulic cylinder 30 is installed between the trailer box and the trailer frame. When unloading is required, hydraulic oil is injected into the lifting hydraulic cylinder to lift the trailer box and tilt the trailer box to facilitate unloading.

[0046] The cargo compartment 20 is comprised of a bottom deck, front deck, rear door, columns, and two side gates 21. Each gate is flanked by columns. The gates are rectangular, either panel or lattice-like. The lower edges of the gates are connected to the bottom deck using at least two sets of hinges. Door locking assemblies connect the gates to the columns at their upper, side corners.

[0047] The above-mentioned opening and closing hinges 40 are installed on the lower edges of the fence doors on both sides of the trailer body to realize the opening of the trailer fence doors; the fence door locking assembly is installed on both sides of the upper ends of the fence doors on both sides of the trailer body, and is used in conjunction with the opening and closing hinges to realize the convenient opening of the trailer fence doors.

[0048] A new type of opening and closing hinge, reference Figures 7 to 11 The opening and closing hinge 40 includes a hinge shaft locking plate 41, a hinge shaft fixing plate 42, a limit card plate 43 and a steel pin 44, wherein the above-mentioned hinge shaft locking plate and hinge shaft fixing plate are hingedly connected by a steel pin 44, and the hinge shaft fixing plate 41 is welded to the lower edge of the warehouse door, that is, the hinge shaft fixing plate 41 is directly fixed to the warehouse door. At the same time, the hinge shaft locking plate is hinged to one side of the hinge shaft fixing plate by a steel pin. Through the constraint of the steel pin 44, the hinge shaft locking plate can produce two extreme positions of overlapping and separation with the hinge shaft fixing plate during the process of rotating around the steel pin, refer to Figure 7 .

[0049] refer to Figure 11 The hinge shaft fixing plate 42 is a stamped steel plate component, including a welding flat plate portion 421, a first steel pin mounting point 424, a first I-shaped notch 422 and a U-shaped slot 423, wherein the welding flat plate portion 421 is welded and fixed to the fence door. This part is rectangular, and a vertically arranged first I-shaped notch 422 is arranged in the center position of the lower middle part of the rectangular welding flat plate portion. The first I-shaped notch divides the lower half of the welding flat plate portion into two, and an outward-turning structure is arranged at the lower edge position of the welding flat plate portion to form the above-mentioned U-shaped slot, and the U-shaped slot 423 is also disconnected at the I-shaped notch.

[0050] refer to Figure 10The overall outline of the hinge axis locking plate 41 is equivalent to that of the hinge axis fixing plate, including a rotating flat plate portion 411, a second steel pin mounting point 215, a control point 414, a second I-shaped notch 412, and a round pin 413, wherein the rotating flat plate portion has a rectangular outline, and a second I-shaped notch is provided in the middle position of the lower middle part of the rotating flat plate portion 411, and a round pin 413 is welded and fixed at the lower edge of the rotating flat plate portion. After the round pin is welded, the middle part of the round pin spans the second I-shaped notch 412. The second steel pin mounting point is located on one side of the rotating flat plate portion, and the hinge axis locking plate and the hinge axis fixing plate are hingedly connected by the steel pin 44. The control point 414 is located on the hinge axis locking plate away from the steel pin mounting point, for example, it is formed by bending outward, and the hinge axis locking plate is rotated by a single-handed operation. During the rotation operation, the steel pin is the center of rotation, and the hinge axis locking plate has two states relative to the hinge axis fixing plate: an overlapping state and an open state. For reference, Figure 7 In the overlapping state, the round pin just falls into the U-shaped slot 423, so that the hinge axis locking plate and the hinge axis fixing plate form a combination. In the open state, the round pin disengages from the U-shaped slot, so that the hinge axis locking plate and the hinge axis fixing plate are separated.

[0051] The limit card plate 43 is welded to the edge of the bottom plate of the box body. The three-dimensional diagram of the limit card plate is shown in FIG. Figure 9 After being welded, the limiting plate and the box body form an I-shaped slot 431, which is used to engage with the round pin in the hinge shaft locking plate. It is important to note that the thickness of the limiting plate should be smaller than the width of the first and second I-shaped notches, so that the I-shaped notches can pass smoothly during the opening and closing of the barn door.

[0052] The following is a detailed description of the working process of our organization:

[0053] In the initial state, the tops of the two side doors are locked by two sets of door locking assemblies 50, which are fixed to the pillars by latches. The lower edges of the door are locked by three sets of opening and closing hinges 40. When the trailer body needs to be tilted, the first step is to open the hinge shaft locking plate of the opening and closing hinge ( Figure 2 and Figure 7 ), during the opening process, the round pin is disengaged from the U-shaped slot, so that the hinge shaft locking plate and the hinge shaft fixing plate are separated. The same operation is performed on the three opening and closing hinges. The second step is to fill the lifting hydraulic cylinder with oil. Under the action of the hydraulic cylinder, the box body tilts sideways. During the tilting process, the warehouse door is only constrained at the top, so that a unloading window is formed between the warehouse door and the box body. Figure 6 , which can realize automatic control of trailer box tilt and make cargo unloading easy.

[0054] During this process, the door locking assembly realizes the shaft function when the gate is opened upwards, and when the gate is opened downwards, the door locking assembly is in a locked state, and the door locking assembly plays a limiting role.

[0055] When tilting unloading is not required, refer to Figure 4 , you only need to open the door locking assembly above the warehouse door, and the warehouse door will flip downward around the round pin on the hinge shaft locking plate. During this process, the round pin is limited in the I-shaped slot between the limiting card plate and the box body, forming a hinge joint.

[0056] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A trailer equipped with a multifunctional barn door, comprising a frame, a box body, a lifting hydraulic cylinder, an opening and closing hinge, and a barn door locking assembly, wherein: The box is located on the frame, and a lifting hydraulic cylinder is installed between the box and the frame. Under the lifting action of the lifting hydraulic cylinder, the box has a side tilting action; a fence door is provided on the side of the box, and the lower edge of the fence door is connected to the bottom warehouse plate by an opening and closing hinge. The side upper corner of the fence door is connected to the box through a fence door locking assembly; the characteristics are: The opening and closing hinge includes a hinge shaft locking plate, a hinge shaft fixing plate, a limit clamping plate and a steel pin, wherein the hinge shaft fixing plate includes a welding flat plate portion, a first I-shaped notch and a U-shaped slot, wherein the welding flat plate portion is welded and fixed to the fence door, a first I-shaped notch is provided at the center of the lower middle portion of the welding flat plate portion, and a U-shaped slot is provided at the lower edge of the welding flat plate portion; The hinge shaft locking plate includes a rotating flat plate portion, a second I-shaped notch, and a round pin, wherein the second I-shaped notch is provided at a central position in the lower middle portion of the rotating flat plate portion, a round pin is fixedly provided at the lower edge of the rotating flat plate portion, and the middle portion of the round pin spans the second I-shaped notch, and the hinge shaft locking plate and the hinge shaft fixing plate are hingedly connected by a steel pin; The limiting card plate is welded to the edge of the bottom plate of the box body, and an I-shaped slot is formed between the limiting card plate and the box body. The I-shaped slot is engaged with the middle part of the round pin in the hinge shaft locking plate. The limiting card plate is smaller than the width of the first I-shaped notch and the second I-shaped notch in the thickness direction.

2. The trailer equipped with a multifunctional barn door according to claim 1, characterized in that: The barn door is a plate structure or a grille structure.

3. The trailer equipped with a multifunctional barn door according to claim 1, characterized in that: The hinge shaft locking plate and the hinge shaft fixing plate are both stamped steel plate parts.

4. The trailer equipped with a multifunctional barn door according to claim 1, characterized in that: The hinge shaft locking plate is also provided with a control point, which is an outward folding body.

5. An opening and closing hinge, characterized in that: The opening and closing hinge includes a hinge shaft locking plate, a hinge shaft fixing plate, a limit clamping plate and a steel pin, wherein the hinge shaft fixing plate includes a welding flat plate portion, a first I-shaped notch and a U-shaped slot, wherein the welding flat plate portion is welded and fixed to the fence door, a first I-shaped notch is provided at the center of the lower middle portion of the welding flat plate portion, and a U-shaped slot is provided at the lower edge of the welding flat plate portion; The hinge shaft locking plate includes a rotating flat plate portion, a second I-shaped notch, and a round pin, wherein the second I-shaped notch is provided at a central position in the lower middle portion of the rotating flat plate portion, a round pin is fixedly provided at the lower edge of the rotating flat plate portion, and the middle portion of the round pin spans the second I-shaped notch, and the hinge shaft locking plate and the hinge shaft fixing plate are hingedly connected by a steel pin; The limiting card plate is welded to the edge of the bottom plate of the box body, and an I-shaped slot is formed between the limiting card plate and the box body. The I-shaped slot is engaged with the middle part of the round pin in the hinge shaft locking plate. The limiting card plate is smaller than the width of the first I-shaped notch and the second I-shaped notch in the thickness direction.

6. The opening and closing hinge according to claim 5, characterized in that: The hinge shaft locking plate and the hinge shaft fixing plate are both stamped steel plate parts.

7. The opening and closing hinge according to claim 5, characterized in that: The hinge shaft locking plate is also provided with a control point, which is an outward folding body.

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