Novel adjustable rear door of trailer carriage

Abstract

The utility model relates to the technical field of trailer carriages, and provides a novel adjustable rear door of a trailer carriage, which comprises a cross beam with a cavity; the multiple edge beams are symmetrically arranged at the two ends of the cross beam, and the sliding rods are arranged on the edge beams and arranged in the cavities in a sliding mode; one end of the fixing piece is arranged on the cross beam, and the other end is clamped on the edge beam. By means of the technical scheme, the problem that in the prior art, due to the fact that a boundary beam has a certain thickness, the boundary beam can block the two sides of the rear door to a certain degree, and loading from the rear door is inconvenient is solved.

Description

Technical Field

[0001] This utility model relates to the field of trailer body technology, specifically to a novel adjustable rear door for a trailer body. Background Technology

[0002] Traditional trailers typically have fixed dimensions for the rear door and overall frame, and the connection between the side beams and crossbeams lacks adjustability. Because the width of the trailer bed is fixed, the side beams, due to their thickness, obstruct the rear door from loading cargo, making loading through the rear door inconvenient.

[0003] Therefore, a new type of trailer cargo box with adjustable rear door is needed to solve the above problems. Utility Model Content

[0004] This utility model proposes a novel adjustable rear door for trailer cargo, which solves the problem in related technologies where the side beams have a certain thickness, thus obstructing the sides of the rear door and making it inconvenient to load goods through the rear door.

[0005] The technical solution of this utility model is as follows:

[0006] A new type of adjustable rear door for trailer cargo includes:

[0007] The crossbeam has a cavity;

[0008] There are several side beams, and the several side beams are symmetrically arranged at both ends of the crossbeam;

[0009] A sliding rod is mounted on the side beam and slidably disposed within the cavity;

[0010] The fastener has one end attached to the crossbeam and the other end snapped onto the side beam.

[0011] Optional, also includes:

[0012] A top beam is disposed between the symmetrically arranged side beams, and both ends of the top beam are respectively engaged with the corresponding side beams.

[0013] Optional, also includes:

[0014] There are several compartment doors, each of which is hinged to one side of the side beam, and the compartment doors abut against the crossbeam and the side beam respectively.

[0015] Optional, also includes:

[0016] A plurality of fixing blocks are provided, and all of the fixing blocks are disposed on the top beam and the cross beam, and the fixing blocks have slots;

[0017] The locking rods are arranged at intervals and rotatably mounted on the door. Each locking rod has a locking part at both ends, and each locking part is locked into a slot.

[0018] Optionally, the side beam includes:

[0019] The first beam, with one side of the compartment door hinged to the first beam;

[0020] The second beam is located at the bottom of the first beam. The second beam is arranged perpendicularly to both the first beam and the second beam. The fastener is located at the connection between the first beam, the second beam, and the crossbeam.

[0021] Optionally, the fastener includes:

[0022] A snap fastener is provided on the second beam.

[0023] A covering plate is detachably installed at the connection between the first beam, the second beam, and the crossbeam;

[0024] A latching plate is hinged to the covering plate and snapped into the buckle.

[0025] Optional, also includes:

[0026] The fixed rings are of several kinds, and each fixed ring is disposed on one of the first beams;

[0027] A connecting rod, the two ends of which are respectively engaged with two opposite fixing rings, the connecting rod being used to tighten the two second beams.

[0028] Optionally, the connecting rod has a protrusion; it also includes:

[0029] The connecting hook has one end attached to the locking rod and the other end engaged with the protrusion.

[0030] Optionally, the bottom of the crossbeam has a through groove, which is arranged along the length of the crossbeam and is used to observe the position of the slide rod in the cavity.

[0031] Optional, also includes:

[0032] A mounting plate is disposed on the outer wall of the crossbeam and is used to connect to the trailer body.

[0033] The working principle and beneficial effects of this utility model are as follows:

[0034] When adjusting the width of the trailer box, this invention first checks the connection status of the fasteners. If they are locked, loosen the locking mechanism. Then, push the side beams to allow the sliding end of the crossbeams to slide within the cavity, adjusting the position of the side beams towards both sides of the rear door. After adjustment, re-secure the side beams and crossbeams to complete the adjustment of the trailer box width. This invention achieves adjustability in the connection method between the crossbeams and side beams in the trailer box frame structure, breaking the limitations of fixed dimensions in traditional trailer boxes. It also facilitates loading of goods of varying widths, improving the trailer's compatibility with cargo and its transportation flexibility. Attached Figure Description

[0035] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0036] Figure 1 This is a schematic diagram of the cavity and slide bar structure of this utility model;

[0037] Figure 2 This is a first-view structural diagram of the vehicle door of this utility model;

[0038] Figure 3 This is a schematic diagram of the second-view structure of the vehicle door of this utility model;

[0039] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0040] Figure 5 This is a schematic diagram of the through-slot structure of this utility model.

[0041] In the diagram: 1. Crossbeam, 101. Cavity, 102. Through groove, 2. Side beam, 201. First beam body, 2011. Fixing ring, 202. Second beam body, 203. Sliding rod, 3. Door, 4. Top beam, 5. Fixing component, 501. Covering plate, 502. Buckle, 503. Clip plate, 6. Fixing block, 601. Slot, 7. Locking rod, 701. Snap-fit ​​part, 8. Connecting rod, 801. Protrusion, 9. Connecting hook, 10. Mounting plate. Detailed Implementation

[0042] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0043] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0044] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Reference Figures 1-5 As an embodiment of this utility model, a novel adjustable rear door for a trailer body is proposed, comprising: a crossbeam 1 having a cavity 101; several side beams 2 symmetrically arranged at both ends of the crossbeam 1; a sliding rod 203 disposed on the side beams 2 and slidably disposed within the cavity 101; and a fixing member 5, one end of which is disposed on the crossbeam 1 and the other end of which is snapped onto the side beams 2.

[0047] In the above scheme, the cavity 101 of the crossbeam 1 provides a spatial basis for the sliding connection of the side beams 2. Its structural strength must meet the requirements of bearing the overall weight of the carriage and the pressure of the cargo. It is generally made of high-strength steel to ensure that the slide bar 203 can slide smoothly without obvious shaking. The side beams 2 are symmetrically distributed at both ends of the crossbeam 1, and there are usually two of them. Together with the crossbeam 1, they form the basic frame of the carriage. The longitudinal beams can slide relative to the crossbeam 1, thereby realizing the expansion of the rear door. One end of the fastener 5 is firmly welded or bolted to the crossbeam 1, and the other end can be connected to the side beam 2 in the form of a slot 601 and a buckle 502, which can ensure the stability of the connection and facilitate disassembly and installation when adjusting the width of the carriage.

[0048] When adjusting the width of the trailer, first check the connection status of the fastener 5. If it is locked, loosen the locking part 701. Then, push the side beam 2 to allow the sliding end of the crossbeam 1 to slide within the cavity 101, adjusting the position of the side beam 2 according to the required trailer width. After adjustment, re-secure the side beam 2 and crossbeam 1 to complete the trailer width adjustment. This achieves adjustability in the connection between the crossbeam 1 and side beam 2 in the trailer frame structure, facilitating loading even for wider cargo and improving the trailer's compatibility with goods and transportation flexibility.

[0049] Furthermore, it also includes: a top beam 4, which is set between the symmetrically arranged side beams 2, with both ends of the top beam 4 being snapped into the corresponding side beams 2.

[0050] In the above scheme, the top beam 4 is usually a long strip structure, and the length of each top beam 4 is the same as the width of the door 3. Therefore, there are two top beams 4, which are spliced ​​together. When the door needs to be opened, the two top beams 4 can also be separated or directly removed. The locking structure at both ends is in the form of grooves and protrusions, which fit tightly with the corresponding protrusions and grooves on the top of the side beam 2. Rubber pads or other cushioning materials can be placed at the locking points to reduce vibration and noise during vehicle operation, and at the same time prevent the locking parts 701 from being damaged due to friction. When installing the top beam 4, align the locking structures at both ends of the top beam 4 with the corresponding parts on the top of the side beam 2, and gently press or use tools to assist, so that the locking parts 701 at both ends of the top beam 4 are fully embedded in the side beam 2, ensuring a tight connection.

[0051] Furthermore, it also includes: several compartment doors 3, each compartment door 3 having one side hinged to the side beam 2, and the compartment door 3 abutting against the crossbeam 1 and the side beam 2 respectively.

[0052] In the above scheme, the number of doors 3 is generally two. One side of the door 3 is connected to the first beam 201 of the side beam 2 via a hinge, and multiple hinge points can be set to evenly distribute the weight of the door 3. Rubber sealing strips can be installed at the contact points between the door 3 and the crossbeam 1 and the side beam 2 to ensure the airtightness of the compartment when it is closed, preventing goods from falling off or being affected by the external environment during transportation.

[0053] Furthermore, it also includes: a number of fixing blocks 6, which are all disposed on the top beam 4 and the cross beam 1, and the fixing blocks 6 have slots 601; a number of locking rods 7, which are all arranged at intervals and rotatably disposed on the door 3, and the two ends of the locking rods 7 have locking parts 701, each locking part 701 locking into a slot 601.

[0054] In the above scheme, after the door 3 is closed, the operator rotates the locking lever 7 so that the locking parts 701 at both ends align with the slots 601 of the fixing block 6, and then continues to rotate the locking lever 7 so that the locking parts 701 engage with the slots 601. During transportation, the locking status of the locking lever 7 is checked regularly to ensure that it is not loose or detached. The cooperation between the fixing block 6 and the locking lever 7 forms a reliable locking mechanism for the door 3, effectively preventing the door 3 from being accidentally opened during transportation due to vehicle bumps, vibrations, etc., thus ensuring the safe transportation of goods. This locking method is simple and easy to implement; operators do not need complex operating skills to lock and unlock the door 3, improving work efficiency and reducing labor intensity.

[0055] Furthermore, the side beam 2 includes: a first beam body 201, with one side of the door 3 hinged to the first beam body 201; a second beam body 202, located at the bottom of the first beam body 201, with the second beam body 202 arranged perpendicularly to both the first beam body 201 and the second beam body 202; and a fastener 5 located at the connection between the first beam body 201, the second beam body 202, and the crossbeam 1.

[0056] In the above scheme, when the width of the carriage is adjusted, after the fixing piece 5 is loosened, the second beam 202 drives the sliding rod 203 to move within the cavity 101 of the crossbeam 1, thereby changing the relative position of the side beam 2 and the crossbeam 1. In daily use, the first beam 201 bears the opening and closing force of the door 3, while the second beam 202, together with the crossbeam 1, bears the overall weight of the carriage and the pressure of the cargo. This structural design of the side beam 2 makes its connection with the crossbeam 1 both adjustable and ensures the stability of the overall structure. The reasonable layout and connection method of the first beam 201 and the second beam 202 effectively distributes the various forces borne by the carriage, extending the service life of the side beam 2 and the entire carriage structure. At the same time, the sliding design of the sliding rod 203 within the cavity 101 of the crossbeam 1 enables the lateral adjustment of the side beam 2.

[0057] Furthermore, the fastener 5 includes: a buckle 502, which is disposed on the second beam 202; a covering plate 501, which is detachably disposed at the connection between the first beam 201, the second beam 202 and the crossbeam 1; and a locking plate 503, which is hinged to the covering plate 501 and is locked into the buckle 502.

[0058] In the above scheme, when the width of the carriage needs to be adjusted, firstly, if the covering plate 501 and the crossbeam 1 are welded, the welded part needs to be cut or broken; if it is bolted, the bolts need to be removed. Then, the operator rotates the clamping plate 503 around the hinge point to disengage it from the buckle 502, and then moves the side beam 2. After adjustment, the clamping plate 503 is rotated back to its original position and locked into the buckle 502, thus reconnecting the fastener 5 and ensuring a stable connection between the side beam 2 and the crossbeam 1. Alternatively, the sliding rod 203 can be directly engaged by adding a clamp. The fastener 5 is simple and practical. The covering plate 501 protects and initially fixes the connection part, and the engagement of the buckle 502 and the clamping plate 503 enables quick connection and unlocking. While ensuring the stability of the connection between the side beam 2 and the crossbeam 1, it greatly improves the convenience of adjusting the width of the carriage, reduces the time and labor costs in the adjustment process, and improves the overall efficiency of transportation operations.

[0059] Furthermore, it also includes: a number of fixing rings 2011, each fixing ring 2011 being disposed on a first beam 201; and a connecting rod 8, the two ends of which are respectively engaged with two opposite fixing rings 2011, the connecting rod 8 being used to tighten the two second beams 202.

[0060] In the above scheme, during the assembly or maintenance of the carriage, both ends of the connecting rod 8 are respectively inserted into the two corresponding fixing rings 2011 to ensure a firm connection. When the carriage door 3 is closed and locked, the connecting hook 9 engages with the protrusion 801, further enhancing the overall structural integrity. The cooperation between the fixing rings 2011 and the connecting rod 8 effectively tightens the two second beams 202, enhancing the stability of the side beam 2 structure and making the carriage frame more stable when bearing the weight of the cargo and external forces, reducing the risk of deformation and damage. At the same time, this connection method also provides a connection point for the connecting hook 9, further improving the coordination and reliability of the overall carriage structure.

[0061] Furthermore, the connecting rod 8 has a protrusion 801; it also includes a connecting hook 9, one end of which is disposed on the locking rod 7, and the other end of which is engaged with the protrusion 801.

[0062] In the above scheme, after the compartment door 3 is closed and locked, the hook of the connecting hook 9 is aligned with the protrusion 801 of the connecting rod 8, and the connecting hook 9 is gently pressed or pulled to engage with the protrusion 801. During transportation, the engagement status of the connecting hook 9 and the protrusion 801 is checked regularly to ensure a secure connection. The cooperation between the connecting hook 9 and the connecting rod 8 organically links the locking structure of the compartment door 3 with the tensioning structure of the side beam 2, forming an interconnected and synergistic whole. While improving the locking reliability of the compartment door 3, the stability of the entire rear door structure of the compartment is further enhanced, effectively preventing damage to goods during transportation due to loosening of the compartment structure, and ensuring the safe transportation of goods.

[0063] Furthermore, the bottom of the crossbeam 1 has a through groove 102, which is arranged along the length of the crossbeam 1. The through groove 102 is used to observe the position of the slide rod 203 in the cavity 101.

[0064] In the above scheme, during the adjustment of the carriage width, the operator determines the moving distance of the side beam 2 and the degree of adjustment of the carriage width by observing the position of the sliding rod 203 within the through slot 102. Tools such as rulers can be used to assist in measuring the position of the sliding rod 203 within the through slot 102, achieving precise adjustment of the carriage width. The through slot 102 provides a direct observation window for carriage width adjustment, allowing operators to accurately grasp the relative positional relationship between the side beam 2 and the crossbeam 1, improving the accuracy and efficiency of the adjustment. This avoids problems such as uneven carriage width or mismatch with cargo dimensions caused by blind adjustment, reducing potential safety hazards and cargo damage risks due to improper adjustment. Furthermore, clamps can be installed on the through slot 102 to fix the end of the adjusted sliding rod 203.

[0065] Furthermore, it also includes: a mounting plate 10, which is disposed on the outer wall of the crossbeam 1, and the mounting plate 10 is used to connect with the trailer body.

[0066] In the above scheme, when installing the new adjustable rear door of the trailer body onto the trailer body, the connecting structure of the mounting plate 10 is aligned with the corresponding part of the trailer body, and then bolts, nuts, and other connectors are used to tightly connect the two together. During the installation process, tools such as a level can be used to ensure the horizontality and verticality of the rear door installation.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel adjustable rear door for a trailer body, characterized in that, include: The crossbeam (1) has a cavity (101); Side beams (2) are provided in a plurality of them, and the plurality of side beams (2) are symmetrically arranged at both ends of the crossbeam (1); A slide rod (203) is provided on the side beam (2), and the slide rod (203) is slidably provided in the cavity (101); The fastener (5) is set on the crossbeam (1) at one end and snapped onto the side beam (2) at the other end.

2. The novel adjustable rear door of a trailer body according to claim 1, characterized in that, Also includes: The top beam (4) is set between the symmetrically arranged side beams (2), and the two ends of the top beam (4) are respectively engaged with the corresponding side beams (2).

3. The novel adjustable rear door of a trailer body according to claim 2, characterized in that, Also includes: There are several compartment doors (3), and one side of each compartment door (3) is hinged to the side beam (2). The compartment door (3) abuts against the crossbeam (1) and the side beam (2) respectively.

4. The novel adjustable rear door of a trailer body according to claim 3, characterized in that, Also includes: The fixing block (6) has a plurality of fixing blocks (6), and the plurality of fixing blocks (6) are all disposed on the top beam (4) and the cross beam (1), and the fixing block (6) has a slot (601). The locking rod (7) has several of them. The locking rods (7) are arranged at intervals and rotatably mounted on the door (3). Each locking rod (7) has a locking part (701) at both ends. Each locking part (701) is locked into a slot (601).

5. A novel adjustable rear door for a trailer body according to claim 4, characterized in that, The side beam (2) includes: The first beam (201) is hinged to the side of the door (3); The second beam (202) is located at the bottom of the first beam (201). The second beam (202) is arranged perpendicularly to the first beam (201) and the second beam (202). The fixing member (5) is located at the connection between the first beam (201), the second beam (202) and the crossbeam (1).

6. A novel adjustable rear door for a trailer body according to claim 5, characterized in that, The fastener (5) includes: A buckle (502) is provided on the second beam (202); A covering plate (501) is detachably installed at the connection between the first beam (201), the second beam (202), and the crossbeam (1); The card plate (503) is hinged to the covering plate (501) and the card plate (503) is snapped into the buckle (502).

7. A novel adjustable rear door for a trailer body according to claim 5, characterized in that, Also includes: A plurality of fixing rings (2011) are provided, each of the fixing rings (2011) being disposed on one of the first beams (201); The connecting rod (8) has its two ends respectively engaged with the two opposite fixing rings (2011), and the connecting rod (8) is used to tighten the two second beams (202).

8. A novel adjustable rear door for a trailer body according to claim 7, characterized in that, The connecting rod (8) has a protrusion (801); it also includes: The connecting hook (9) is set on the locking rod (7) at one end and is engaged with the protrusion (801) at the other end.

9. A novel adjustable rear door for a trailer body according to claim 5, characterized in that, The bottom of the crossbeam (1) has a through groove (102), which is arranged along the length of the crossbeam (1). The through groove (102) is used to observe the position of the slide rod (203) in the cavity (101).

10. A novel adjustable rear door for a trailer body according to claim 1, characterized in that, Also includes: Mounting plate (10) is disposed on the outer wall of the crossbeam (1) and is used to connect to the trailer body.

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