Cargo securing device for road freight transport

Abstract

The utility model discloses a kind of goods fixing devices for road goods transportation, it is related to goods fixing technical field, including fixed mechanism, the fixed mechanism includes moving plate, the four corners of moving plate bottom are all fixedly installed with universal wheel, moving groove is set in the inside middle position of moving plate, the inside movable connection of moving groove has bidirectional screw rod.The utility model is set top limiting mechanism and fixed mechanism, realize horizontal direction clamping by fixed mechanism, top limiting mechanism realizes top limiting, form the fixation of horizontal and top, effectively prevent the up-and-down movement and dump of higher goods when transporting bumping, emergency braking, fill the blank of prior art, solved the above-mentioned equipment when application, not designed the limiting structure of top, if goods height is higher, such as stacked carton, vertical equipment, bumping, emergency braking in transportation process can lead to goods up-and-down movement, even center of gravity imbalance dump, the problem of incomplete fixed dimension.

Description

Technical Field

[0001] This utility model relates to the field of cargo securing technology, specifically a cargo securing device for road freight transportation. Background Technology

[0002] In road freight transport, cargo securing devices are important tools used to ensure the stability of goods during transport and to prevent displacement, slippage, or collision caused by bumps, sharp turns, or emergency braking.

[0003] According to authorization announcement number CN223252863U, a cargo securing device for road freight transport includes a transport vehicle; a drive motor is fixedly connected inside the transport vehicle; a bidirectional screw is fixedly connected to the output end of the drive motor; two first moving blocks are threadedly connected to the surface of the bidirectional screw; a clamping plate is fixedly connected to the top of the first moving blocks; a connecting plate is fixedly connected to one side of the clamping plate; a bidirectional motor is fixedly connected to one side of the clamping plate; a unidirectional screw is fixedly connected to both output ends of the bidirectional motor; and a second moving block is threadedly connected to the surface of the unidirectional screw. This invention solves the problem that existing cargo securing devices for road freight transport require disassembly and reinstallation for securing goods of different sizes, which is time-consuming and labor-intensive, making it inconvenient for users.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, it was discovered that the aforementioned equipment, when in use, does not have a top limiting structure. If the goods are tall, such as stacked cardboard boxes or vertical equipment, bumps or sudden braking during transportation can cause the goods to move up and down, or even lose their center of gravity and tip over, resulting in incomplete fixed dimensions. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a cargo fixing device for road freight transportation, which has the advantage of top limiting. This solves the problem that when the above-mentioned equipment is used, the lack of a top limiting structure means that if the cargo is tall, such as stacked cardboard boxes or vertical equipment, bumps or sudden braking during transportation can cause the cargo to move up and down, or even lose its center of gravity and tip over, resulting in incomplete fixing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cargo fixing device for road freight transportation, comprising a fixing mechanism, wherein the fixing mechanism includes a movable plate, universal wheels are fixedly installed at the four corners of the bottom of the movable plate, a movable groove is formed in the middle of the interior of the movable plate, a bidirectional lead screw is movably connected inside the movable groove, adjusting blocks are threadedly connected to the left and right sides of the surface of the bidirectional lead screw, a clamping plate is fixedly connected to the top of the adjusting block, and a top limiting mechanism is provided. The top limiting mechanism includes a sliding plate, the sliding plate is slidably connected to the outside of the clamping plate, the tops of the two sliding plates are fixedly connected to the same limiting baffle, sliding components are fixedly connected to the front and rear sides of the inner side of the sliding plate, a transmission component and a buffer component are fixedly connected to the outer side of the sliding plate, and the buffer component is located at the bottom of the limiting baffle.

[0007] As a preferred embodiment of the present invention, the buffer assembly includes a damper, which is fixedly installed at the center of the bottom of the limiting baffle, and the other end of the damper is fixedly connected to a buffer plate.

[0008] As a preferred embodiment of the present invention, the sliding assembly includes a sliding block, which is fixedly connected to the front and rear sides of the inner side of the sliding plate, and the outer side of the clamping plate is provided with a sliding groove for use with the sliding block.

[0009] In a preferred embodiment of this invention, the transmission assembly includes a transmission block, which is fixedly connected to the outside of the sliding plate. A screw is threadedly connected to the inside of the transmission block, and a support plate is movably connected to the bottom of the screw surface via a bearing. The inner side of the support plate is fixedly connected to the outer side of the clamping plate.

[0010] As a preferred embodiment of this utility model, buffer springs are fixedly connected to the four corners of the top of the buffer plate, and the other end of the buffer springs is fixedly connected to the bottom of the limiting baffle.

[0011] As a preferred embodiment of this invention, a handwheel is fixedly connected to the top of the screw, and the handwheel is used to rotate the screw.

[0012] As a preferred embodiment of this invention, a protective pad is attached to the bottom of the buffer plate, and the protective pad is made of natural rubber.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting a top limiting mechanism and a fixing mechanism, achieves horizontal clamping through the fixing mechanism and top limiting mechanism to achieve top limiting, forming a fixation at both the horizontal and top levels. This effectively prevents tall goods from moving up and down or tipping over during transportation bumps and sudden braking, filling a gap in the existing technology. It solves the problem that the above-mentioned equipment does not have a top limiting structure, and if the goods are tall, such as stacked cardboard boxes or vertical equipment, bumps and sudden braking during transportation will cause the goods to move up and down, or even lose balance and tip over, resulting in incomplete fixation. The top limiting mechanism achieves the effect of fixing the goods.

[0015] 2. This utility model mitigates the rigid impact between the cargo and the top limiting structure by setting up a buffer component. Through the buffering effect of the damper, it avoids the deformation and damage of the cargo caused by the top of the cargo directly hitting the limiting baffle, thereby reducing the cargo loss rate. The damper can effectively suppress the high-frequency movement of the cargo and reduce the positional displacement of the cargo caused by continuous bumps, further ensuring the stability of the cargo during transportation.

[0016] 3. This utility model prevents the sliding plate from tilting or jamming during the lifting process by setting a sliding component, ensuring that the limit baffle can accurately align with the top of the goods and avoiding the failure of the top limit due to sliding deviation. The cooperation structure between the sliding block and the slide groove is simple and the sliding is smooth. Height adjustment can be completed without complicated operation, improving the ease of use of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is an exploded view of the fixing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the explosion structure of the buffer component of this utility model.

[0020] In the diagram: 1. Fixing mechanism; 101. Moving plate; 102. Caster wheel; 103. Moving groove; 104. Two-way lead screw; 105. Adjusting block; 106. Clamping plate; 2. Top limiting mechanism; 21. Sliding plate; 22. Limiting baffle; 23. Sliding assembly; 231. Sliding block; 232. Slide groove; 24. Transmission assembly; 241. Transmission block; 242. Screw; 243. Support plate; 3. Buffer assembly; 31. Damper; 32. Buffer plate; 4. Buffer spring; 5. Handwheel; 6. Protective pad. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] Example 1

[0026] Reference Figure 1-3 This is the first embodiment of the present invention, which provides a cargo fixing device for road freight transportation, including a fixing mechanism 1. The fixing mechanism 1 includes a movable plate 101, with universal wheels 102 fixedly installed at the four corners of the bottom of the movable plate 101. A movable groove 103 is opened in the middle of the movable plate 101. A bidirectional lead screw 104 is movably connected inside the movable groove 103. Adjusting blocks 105 are threadedly connected to the left and right sides of the surface of the bidirectional lead screw 104. A clamping plate 106 is fixedly connected to the top of the adjusting block 105. A top limiting mechanism 2 is also provided. The top limiting mechanism 2 includes a sliding plate 21, which is slidably connected to the outside of the clamping plate 106. The tops of the two sliding plates 21 are fixedly connected to the same limiting baffle 22. Sliding components 23 are fixedly connected to the front and rear sides of the inner side of the sliding plate 21. A transmission component 24 and a buffer component 3 are fixedly connected to the outer side of the sliding plate 21. The buffer component 3 is located at the bottom of the limiting baffle 22.

[0027] Specifically, by setting a top limiting mechanism 2, the top is limited, effectively preventing tall goods from moving up and down and tipping over during transportation bumps and sudden braking, filling a gap in existing technology. At the same time, the sliding plate 21 drives the limiting baffle 22 to adjust up and down, which can adapt to goods of different horizontal dimensions and heights without disassembly and reassembly, further improving the ease of operation.

[0028] Furthermore, in the top limiting mechanism 2, the sliding plate 21 can slide up and down along the outside of the clamping plate 106 via the sliding component 23. After being adjusted to suit the height of the goods, the same limiting baffle 22 on the top of the two sliding plates 21 can form a lateral blocking limit on the top of the goods.

[0029] Example 2

[0030] In the second embodiment of this utility model, the buffer assembly 3 includes a damper 31, which is fixedly installed at the center of the bottom of the limiting baffle 22, and the other end of the damper 31 is fixedly connected to the buffer plate 32.

[0031] Specifically, by setting up the buffer component 3, the rigid impact between the cargo and the top limiting structure is mitigated. Through the buffering effect of the damper 31, the deformation and damage of the cargo caused by the direct impact of the top of the cargo with the limiting baffle 22 are avoided, thereby reducing the cargo loss rate. The damper 31 can effectively suppress the high-frequency movement of the cargo and reduce the positional displacement of the cargo caused by continuous bumps, further ensuring the stability of the cargo during transportation.

[0032] Furthermore, the damper 31 in the buffer assembly 3 is fixed at the bottom center of the limiting baffle 22, and its other end is connected to the buffer plate 32. When the goods move upward due to bumps during transportation, the top of the goods will first contact the buffer plate 32. After the buffer plate 32 is subjected to an upward force, it squeezes the damper 31. The damper 31 uses the viscous resistance of its internal damping medium to convert the kinetic energy of the goods' movement into heat energy and release it slowly, thereby reducing the speed and amplitude of the upward movement of the buffer plate 32 and weakening the upward impact force of the goods.

[0033] Example 3

[0034] In the third embodiment of this utility model, the sliding component 23 includes a sliding block 231, which is fixedly connected to the front and rear sides of the inner side of the sliding plate 21. The outer side of the clamping plate 106 is provided with a sliding groove 232 for use with the sliding block 231.

[0035] Specifically, by setting up the sliding component 23, the sliding plate 21 is prevented from tilting or getting stuck during the lifting process, ensuring that the limit baffle 22 can be accurately aligned with the top of the goods, avoiding the failure of the top limit due to sliding offset. The cooperation structure between the sliding block 231 and the slide groove 232 is simple and the sliding is smooth. The height adjustment can be completed without complicated operation, improving the ease of use of the device.

[0036] Furthermore, in the sliding assembly 23, the sliding block 231 is fixed on the inner front and rear sides of the sliding plate 21, and the outer side of the clamping plate 106 is provided with a sliding groove 232 that is adapted to the sliding block 231. The sliding groove 232 extends along the height direction of the clamping plate 106. When it is necessary to adjust the height of the top limiting mechanism 2, the sliding plate 21 is pushed, and the sliding block 231 will slide up and down along the sliding groove 232, causing the sliding plate 21 and the top limiting baffle 22 to rise and fall synchronously. The sliding groove 232 constrains the movement trajectory of the sliding block 231, ensuring that the sliding plate 21 always moves in the vertical direction of the clamping plate 106 and avoids deviation.

[0037] Example 4

[0038] In the fourth embodiment of this utility model, the transmission assembly 24 includes a transmission block 241, which is fixedly connected to the outside of the sliding plate 21. A screw 242 is threadedly connected to the inside of the transmission block 241. A support plate 243 is movably connected to the bottom of the surface of the screw 242 through a bearing. The inner side of the support plate 243 is fixedly connected to the outer side of the clamping plate 106.

[0039] Specifically, by setting up the transmission component 24, the height of the limiting baffle 22 can be precisely adjusted and stably locked through the threaded engagement of the screw 242 and the transmission block 241, ensuring that it fits tightly against the top of the goods and preventing the limiting baffle 22 from sliding down due to vibration during transportation and losing its top restraint function. In addition, the height of the limiting baffle 22 can be flexibly adjusted by rotating the screw 242 to adapt to goods of different sizes from low to high, further expanding the adaptability of the device to a variety of goods and improving its practicality.

[0040] Furthermore, in the transmission assembly 24, when the screw 242 is rotated, the support plate 243 provides fixed support to the bottom of the screw 242, so the screw 242 only rotates. The transmission block 241 moves up and down along the axis of the screw 242 under the action of thread engagement, thereby driving the sliding plate 21 fixed thereto to rise and fall synchronously. When the screw 242 stops rotating, the static friction between the threads locks the position of the transmission block 241, keeping the sliding plate 21 and the limiting baffle 22 at a set height, thus fixing the position of the top limiting mechanism 2.

[0041] Working principle:

[0042] Using the casters 102 at the four corners of the bottom of the movable plate 101, the entire device is pushed to the cargo placement area inside the transport vehicle. The cargo to be transported is placed in the center area above the movable plate 101. By driving the bidirectional lead screw 104 to rotate within the movable groove 103, the rotation of the bidirectional lead screw 104 causes the two adjusting blocks 105 on both sides to slide towards each other along the movable groove 103. The clamping plates 106 fixed at the top of the adjusting blocks 105 move synchronously with the adjusting blocks 105 until the inner sides of the clamping plates 106 are in contact with the horizontal surfaces of the cargo, and the bidirectional lead screw 104 is stopped. At this point, the static friction between the threads of the bidirectional lead screw 104 and the adjusting blocks 105 locks the adjusting blocks 105. Position: The clamping plate 106 clamps and fixes the goods horizontally to prevent them from shifting laterally during transportation. The operator observes the height of the goods and rotates the handwheel 5 on the top of the screw 242 clockwise. The handwheel 5 drives the screw 242 to rotate synchronously. Because the bottom of the screw 242 is movably connected to the support plate 243 through a bearing, the screw 242 only rotates and does not move up and down. The transmission block 241, which is threadedly connected to the screw 242, moves downward along the screw 242 under the action of thread engagement, driving the sliding plate 21 to adjust downward synchronously, so that the protective pad 6 at the bottom of the buffer plate 32 is tightly attached to the top of the goods. Stop rotating the handwheel 5, and the static friction between the threads locks the transmission block 241. Position: When the sliding plate 21 moves, the sliding blocks 231 on the inner front and rear sides of the sliding plate 21 slide up and down along the grooves 232 opened on the outer side of the clamping plate 106. The grooves 232 form a trajectory constraint on the sliding blocks 231, ensuring that the sliding plate 21 rises and falls vertically and avoids tilting. The limiting baffle 22 fixed at the top of the sliding plate 21 rises and falls synchronously with the sliding plate 21 until the buffer assembly 3 at the bottom of the limiting baffle 22 is close to the top surface of the goods. When the goods move upward due to vehicle bumps during transportation, the top of the goods presses against the protective pad 6 at the bottom of the buffer plate 32. The protective pad 6 deforms slightly to prevent the surface of the goods from being scratched by the hard buffer plate 32, while increasing the contact friction with the goods. The force restricts the slight horizontal slippage of the goods. After the buffer plate 32 is subjected to upward extrusion force, it simultaneously compresses the damper 31 at the top and the buffer springs 4 at the four corners. The damper 31 uses the viscous resistance of the internal damping medium to convert the kinetic energy of the goods' movement into heat energy and release it slowly, thus slowing down the upward speed of the buffer plate 32 and weakening the impact force. The buffer springs 4 are compressed, generating a downward elastic restoring force, which further absorbs the impact force. The elastic restoring force of the buffer springs 4 pushes the buffer plate 32 to return to its original position. The damper 31 simultaneously returns to its initial length, so that the buffer plate 32 and the protective pad 6 are re-attached to the top of the goods, maintaining a continuous buffer protection state and preventing the goods from shifting position or tipping over due to frequent bumps.

[0043] In summary: By setting up a top limiting mechanism 2 and a fixing mechanism 1, the fixing mechanism 1 achieves horizontal clamping, and the top limiting mechanism 2 achieves top limiting, forming a horizontal and top fixation, effectively preventing tall goods from moving up and down or tipping over during transportation bumps and sudden braking. This fills a gap in existing technology and solves the problem that the above-mentioned equipment did not have a top limiting structure designed in its application. If the goods are tall, such as stacked cardboard boxes or vertical equipment, bumps and sudden braking during transportation will cause the goods to move up and down, or even lose balance and tip over, resulting in incomplete fixation. The top limiting effect is achieved.

[0044] The screws, gears, dampers, and springs used in this application can be additionally equipped with protective measures that are common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0045] It should be noted that (screw, gear, damper, spring) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0049] 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 cargo securing device for road freight transport, characterized in that: The system includes a fixing mechanism (1), which includes a movable plate (101). Universal wheels (102) are fixedly installed at the four corners of the bottom of the movable plate (101). A movable groove (103) is provided in the middle of the interior of the movable plate (101). A two-way lead screw (104) is movably connected inside the movable groove (103). Adjusting blocks (105) are threadedly connected to the left and right sides of the surface of the two-way lead screw (104). A clamping plate (106) is fixedly connected to the top of the adjusting block (105). The system also includes a top limiting mechanism (2), which includes a sliding plate (21). The sliding plate (21) is slidably connected to the outside of the clamping plate (106). The tops of the two sliding plates (21) are fixedly connected to the same limiting baffle (22). Sliding components (23) are fixedly connected to the front and rear sides of the inner side of the sliding plate (21). A transmission component (24) is fixedly connected to the outer side of the sliding plate (21). The buffer assembly (3) is located at the bottom of the limiting baffle (22).

2. The cargo securing device for road freight transport according to claim 1, characterized in that: The buffer assembly (3) includes a damper (31), which is fixedly installed at the center of the bottom of the limiting baffle (22), and the other end of the damper (31) is fixedly connected to a buffer plate (32).

3. A cargo securing device for road freight transport according to claim 1, characterized in that: The sliding assembly (23) includes a sliding block (231), which is fixedly connected to the front and rear sides of the inner side of the sliding plate (21). The outer side of the clamping plate (106) is provided with a groove (232) for use with the sliding block (231).

4. A cargo securing device for road freight transport according to claim 1, characterized in that: The transmission assembly (24) includes a transmission block (241), which is fixedly connected to the outside of the sliding plate (21). The transmission block (241) is internally threaded with a screw (242), and the bottom of the surface of the screw (242) is movably connected to a support plate (243) via a bearing. The inner side of the support plate (243) is fixedly connected to the outer side of the clamping plate (106).

5. A cargo securing device for road freight transport according to claim 2, characterized in that: The buffer plate (32) has four fixed corners at the top, each connected to a buffer spring (4), and the other end of the buffer spring (4) is fixedly connected to the bottom of the limiting baffle (22).

6. A cargo securing device for road freight transport according to claim 4, characterized in that: A handwheel (5) is fixedly connected to the top of the screw (242), and the handwheel (5) is used to rotate the screw (242).

7. A cargo securing device for road freight transport according to claim 2, characterized in that: The bottom of the buffer plate (32) is attached with a protective pad (6), which is made of natural rubber.

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