A sliding rail type access system for a container

Abstract

The utility model discloses a sliding rail formula cabin entry system for container, which is mainly composed of sliding rail structure, sliding tray, locking mechanism, limiting block and binding fixing point and other core components. The sliding rail structure is fixed to the inner bottom of the container, the sliding tray is in sliding cooperation with the sliding rail through the pulley block, the limiting block and the integrated locking mechanism are arranged at the end of the sliding rail, and the binding fixing points are uniformly distributed on the upper surface of the tray. The working principle is through the "out-cabin loading, whole cabin entry" mode: first, fix the goods on the sliding tray outside the cabin, then push it into the cabin along the sliding rail, and position it by the limiting block and automatically lock it by the locking mechanism. The system significantly improves the loading and unloading efficiency, reduces the labor intensity, effectively protects the container structure, ensures the transportation safety through the integrated fixation of the goods and the tray, and has simple and reliable overall structure and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of cargo transportation and loading / unloading technology, specifically a sliding rail type container loading system. Background Technology

[0002] In the current freight transportation sector, especially when using standard containers, the methods of loading and securing cargo are generally traditional and inefficient. The mainstream approach is to first park the container in a designated location, then have workers (usually using forklifts) move the cargo piece by piece to the container hatch, and then stack and arrange the cargo inside the hold using manual labor or simple machinery. The securing of cargo inside the hold mostly relies solely on the container's side panels for restraint, lacking dedicated and reliable securing devices.

[0003] This traditional operating model has the following significant technical drawbacks: 1. Low work efficiency and high labor intensity: The entire loading and unloading process needs to be carried out inside the space-constrained container. It is inconvenient to operate large equipment such as forklifts and relies heavily on manual labor, resulting in long operation cycles. Moreover, for heavy or large-volume goods, the labor intensity of workers is extremely high, posing safety hazards.

[0004] 2. Easily Damaged Container Structure: During transportation, goods inevitably experience displacement and impact due to bumps and shaking. Lacking an internal securing system, the enormous kinetic energy of the goods is entirely borne by the container's side panels. Prolonged use can easily lead to deformation, dents, or even cracks in the container's side panels, significantly shortening the container's lifespan and increasing operating costs.

[0005] 3. Insecurely secured cargo poses a high risk to transportation safety: Relying solely on the side panels of the container for restraint is insufficient to effectively prevent cargo from shifting, tipping over, or even colliding during transport. This can not only lead to damage to the cargo itself but, in severe cases, may also affect the stability of the transport vehicle, causing safety accidents.

[0006] 4. Lack of mechanized transition: The transition from outside to inside the cabin is difficult to achieve with smooth mechanized operations, resulting in efficiency bottlenecks.

[0007] Therefore, there is an urgent need in this field for a new type of cargo handling system that can fundamentally improve loading and unloading processes, increase efficiency, and ensure the safety of cargo and containers. Utility Model Content

[0008] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a sliding rail type container entry system to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, a specific embodiment of this utility model provides a container sliding rail loading system, including a container, a sliding rail structure, a sliding pallet, a locking mechanism, a limiting block, and binding and fixing points. The sliding rail structure is fixedly installed along the length of the container at its inner bottom, providing guidance and support for the cargo-carrying components. The sliding pallet is positioned above the sliding rail structure, with its bottom slidingly engaging with the sliding rail structure to carry cargo to be loaded or unloaded. The limiting block is detachably fixed to the end of the sliding rail structure near the depth of the container hold, limiting the travel endpoint of the sliding pallet on the sliding rail structure. The locking mechanism is partially housed within the limiting block, with its operating part exposed on the side of the limiting block facing the sliding pallet. The locking mechanism forms an unlockable engaging engagement with the bottom of the sliding pallet, locking the sliding pallet to the sliding rail structure after it reaches the limiting block. The binding and fixing points are evenly distributed along the upper edge of the sliding pallet, securing the cargo to the sliding pallet using straps or rope connectors.

[0010] This utility model discloses a container sliding rail loading system. Through an "outside-the-hub loading, whole-unit loading" operation mode, it moves the core loading and unloading process outside the cargo hold. Utilizing sliding rail guidance and locking, it greatly improves loading and unloading efficiency and reduces labor intensity and operational risks. Its dedicated load-bearing mechanism effectively protects the container structure, and through the integrated fixing of cargo and pallets, it fundamentally eliminates cargo displacement, ensuring transportation safety. The system has a simple and reliable structure and is highly practical.

[0011] In addition, the container sliding rail entry system proposed in the above application may also have the following additional technical features: Specifically, the slide rail structure includes two parallel elongated rails, which are parallel to the two side edges of the bottom of the container. The cross-section of the rails is U-shaped with the U-shaped opening facing upwards. The rails are made of high-strength alloy steel, and the bottom of the rails is detachably and fixedly connected to the mounting holes pre-set on the bottom of the container by bolts.

[0012] Specifically, the sliding pallet is made of high-strength aluminum alloy, and its length and width are adapted to the length of the bottom of the container and the spacing between the two slide rail structures, respectively. A pulley assembly is fixedly installed at each of the four corners of the bottom of the sliding pallet. The pulley assembly includes at least two parallel nylon pulleys, which are embedded in the U-shaped groove of the slide rail structure and roll in contact with the groove wall. The bottom of the sliding pallet also has a locking hole adapted to the locking mechanism, located below one end of the sliding pallet.

[0013] Specifically, the locking mechanism includes a locking pin, a control button, and a return spring; the locking pin passes through the limiting block in a direction perpendicular to the length of the slide rail structure, and one end of the locking pin can extend into the lock hole of the sliding tray, while the other end is fixedly connected to the control button; the control button is exposed on the side of the limiting block away from the sliding tray; the return spring is sleeved on the section of the locking pin located inside the limiting block, and one end of the return spring abuts against the inner wall of the limiting block, while the other end abuts against the outer wall of the locking pin, for providing elastic force that causes the locking pin to tend to extend toward the lock hole.

[0014] Specifically, the binding and fixing point is an upwardly protruding hook structure. The hook structure is made of stainless steel, and there are no fewer than four hook structures, which are symmetrically distributed at the midpoints of the four sides of the upper surface of the sliding tray. The top of the hook structure is provided with an arc transition part to avoid scratching the straps and ropes.

[0015] Specifically, the limiting block is made of rubber cushioning material, and the height of the limiting block is higher than the upper surface of the slide rail structure; the limiting block has an arc-shaped cushioning surface on the side facing the sliding tray, and the arc-shaped cushioning surface is adapted to the end edge of the sliding tray; the limiting block is also embedded with metal reinforcing ribs, and the metal reinforcing ribs are welded and fixed to the end of the slide rail structure.

[0016] Specifically, the upper surface of the sliding pallet is also provided with evenly distributed anti-slip protrusions, which are rubber bumps with a height of 2-3mm, used to increase the friction between the goods and the sliding pallet and prevent the goods from shifting on the sliding pallet.

[0017] The advantages of this invention compared to existing technologies are as follows: (1) It realizes the revolutionary operation process of "loading outside the cabin and entering the cabin as a whole", which moves the most time-consuming and laborious sorting and fixing process to the spacious outside of the cabin, greatly improving loading and unloading efficiency and reducing the intensity and risk of operations inside the cabin.

[0018] (2) The dedicated slide rails, limit blocks and locking mechanisms bear the full load and impact of the goods, effectively protecting the side panels and bottom panels of the container, avoiding deformation and damage to the container body, and extending its service life.

[0019] (3) By binding and fixing the scattered goods and the sliding pallet into a stable whole, the displacement and tipping of goods during transportation are fundamentally prevented, which greatly improves transportation safety.

[0020] (4) The system has a simple structure, high reliability, low maintenance cost, and is perfectly compatible with existing common equipment such as forklifts, making it easy to promote and implement.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of a sliding rail type container entry system according to an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure at point A; Figure 3 for Figure 1 Schematic diagram of the structure at point B; Figure 4 for Figure 1 Schematic diagram of the structure at point C; Figure 5 This is a schematic diagram of the locking mechanism of a sliding rail-type cabin entry system for a container, according to one embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures: 1. Container; 2. Slide rail structure; 21. Rail; 3. Sliding pallet; 31. Pulley block; 311. Nylon pulley; 32. Locking hole; 4. Locking mechanism; 41. Locking pin; 42. Control button; 43. Return spring; 5. Limit block; 51. Arc-shaped buffer surface; 52. Metal reinforcing rib; 6. Binding fixing point; 61. Hook structure; 611. Arc transition section. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 5As shown in one embodiment of this utility model, a sliding rail-type loading and unloading system for containers has a core innovation in integrating a complete mechanized loading, unloading, guiding, and securing system inside a standard container 1. This system, as a functional internal component of the container 1, is installed on the inner floor of the container 1. The entire system is mainly composed of five functional modules: a sliding rail structure 2, a sliding pallet 3, a locking mechanism 4, a limiting block 5, and binding and fixing points 6.

[0027] I. Detailed Description of Slide Rail Structure 2 The slide rail structure 2 is the load-bearing and guiding foundation of the entire system. For example... Figure 1 and Figure 4 As shown, in this embodiment, the slide rail structure 2 consists of two long, strip-shaped tracks 21 made of high-strength alloy steel. The two tracks 21 are laid parallel to each other, their direction is consistent with the length direction of the container 1, and they are respectively close to the left and right edges of the inner bottom plate of the container 1. This layout provides stable and reasonably spanned support for the sliding pallet 3.

[0028] The cross-section of track 21 is designed as an upward-opening U-shape. This U-shaped groove structure has excellent guiding and accommodating functions. Mounting holes are pre-drilled at the bottom of track 21, and high-strength bolts are passed through these holes to securely and detachably fix the entire slide rail structure 2 to the inner bottom plate of container 1. This detachable connection method facilitates system installation, maintenance, and replacement of container 1 when necessary.

[0029] II. Detailed Description of Sliding Tray 3 The sliding pallet 3 is the direct carrying platform for goods. Its body is made of a high-strength aluminum alloy frame to ensure sufficient structural strength and lightweight characteristics when carrying heavy loads. The length and width of the sliding pallet 3 are precisely designed, with its length adapted to the effective length inside the container 1 and its width adapted to the inner spacing between the two tracks 21, thereby ensuring that the sliding pallet 3 can slide smoothly on the tracks 21 without interference or jamming.

[0030] To achieve smooth sliding, a pulley assembly 31 is fixedly installed at each of the four corners of the bottom of the sliding tray 3. Each pulley assembly 31 contains at least two parallel nylon pulleys 311. These nylon pulleys 311 fit precisely into the U-shaped groove of the slide rail structure 2. The nylon material has good wear resistance and self-lubricating properties, allowing the nylon pulleys 311 to roll smoothly on the groove wall of the U-shaped groove, greatly reducing sliding friction. This makes it easy to push the sliding tray 3 manually or with the help of simple tools, even when carrying heavy objects.

[0031] Furthermore, a specific-sized locking hole 32 is provided directly below the bottom of the sliding tray 3, near the end in its direction of travel. The position of this locking hole 32 corresponds precisely to the locking mechanism 4 described later.

[0032] III. Integration Description of Limit Block 5 and Locking Mechanism 4 The limit block 5 and the locking mechanism 4 are closely integrated in terms of physical structure and function, and together they are responsible for the final positioning and locking of the sliding tray 3.

[0033] The limiting block 5 is fixedly installed at the end of the slide rail structure 2, near the deepest part of the container 1, by bolt connection. Its core function is to act as a mechanical stop on the path of the sliding pallet 3, precisely limiting the final position of the pallet. In this embodiment, the base material of the limiting block 5 is a cushioning material such as rubber, and its height is higher than the upper surface of the track 21. On its side facing the direction of impact of the sliding pallet 3, an arc-shaped buffer surface 51 is machined. This arc-shaped buffer surface 51 can perfectly fit the end edge of the sliding pallet 3, absorbing the impact energy when the sliding pallet 3 arrives at its destination in a flexible contact manner, effectively reducing noise and structural stress. To ensure that the limiting block 5 does not deform or break under long-term impact, a metal reinforcing rib 52 is also embedded inside, and the metal reinforcing rib 52 is rigidly connected to the end of the slide rail structure 2 by welding.

[0034] The locking mechanism 4 is housed inside the limiting block 5 and is a mechanical pin-type mechanism. It mainly consists of a locking pin 41, a control button 42, and a return spring 43. The locking pin 41 is horizontally inserted into the base of the limiting block 5 along a direction perpendicular to the length of the slide rail structure 2. One end of the locking pin 41 is a locking end that can extend into the locking hole 32 of the sliding tray 3, and the other end is fixedly connected to the control button 42.

[0035] The return spring 43 is sleeved on the section of the locking pin 41 located inside the limiting block 5. One end of the spring abuts against the inner wall of the limiting block 5, and the other end abuts against the outer wall or a shoulder of the locking pin 41, thereby providing a continuous elastic force to the locking pin 41 in the direction of the locking hole 32 of the sliding tray 3, that is, having a tendency to make the locking pin 41 automatically pop out.

[0036] IV. Binding and fixing point 6 and other optimization design descriptions The binding and securing points 6 are crucial for the integration of goods and the sliding pallet 3. In this embodiment, the binding and securing points 6 are specifically upward-protruding hook structures 61 made of stainless steel. There are at least four of these hook structures 61, symmetrically distributed at the midpoints of the four sides of the upper surface of the sliding pallet 3. Each hook structure 61 has a smooth, rounded transition portion 611 at its top, designed to prevent sharp edges from scratching the straps or ropes during binding and unbinding, thus improving operational safety and tool lifespan.

[0037] As a further optimization, uniform anti-slip protrusions are distributed on the upper surface of the sliding pallet 3. These anti-slip protrusions can be rubber bumps with a height of 2 to 3 millimeters. They can significantly increase the static friction between the bottom of the goods and the pallet surface, preventing the goods from sliding or shifting due to inertia during the process of the pallet being pushed into the container 1, and increasing the stability during operation.

[0038] Complete System Workflow and Principles Explanation The working principle and complete operation process of this utility model are as follows, which is a coherent process without logical jumps: Preparation phase: The operator first places the sliding pallet 3 on the starting end of the slide rail structure 2 at the hatch of container 1 via the pulley block 31 at its bottom. At this time, it is necessary to confirm that the locking mechanism 4 is in the unlocked state (that is, the locking pin 41 is in the pop-out ready state under the action of the return spring 43, or it is kept in the retracted state by the control button 42).

[0039] External loading and securing: Outside the spacious container 1, operators use forklifts and other common equipment to efficiently and stably stack the goods to be transported onto the sliding pallet 3. Then, using straps or ropes, the goods are reliably secured through the hook structures 61 on the sliding pallet 3, fixing the goods and the sliding pallet 3 into a stable whole. This step is completed outside the container, offering favorable conditions, high efficiency, and strong safety.

[0040] Slide rail propulsion: After the cargo is secured, the operator applies a pushing force (manually or with the aid of simple tools) at the hatch to push the sliding pallet 3. Due to the low-friction rolling engagement between the pulley block 31 and the U-shaped rail 21, the sliding pallet 3 and the cargo on it are easily slid into the container 1 along the slide rail structure 2. The slide rail structure 2 ensures the accuracy and straightness of the entire carrying unit's direction of travel.

[0041] Limiting and Automatic Locking: When the sliding tray 3 slides to the end of the slide rail structure 2, its end edge contacts and presses against the arc-shaped buffer surface 51 of the limiting block 5, thus stopping the movement. At this instant, the locking hole 32 at the bottom of the sliding tray 3 moves to a position directly opposite the locking pin 41 inside the limiting block 5. Under the preload of the return spring 43, the locking pin 41 quickly and automatically pops out, its front end precisely inserting into the locking hole 32 (Note: It can also be designed to require manual pressing of a button to lock). This mechanical interlocking action firmly locks the sliding tray 3 at the preset end position, preventing it from moving back and forth.

[0042] Operation complete: After the operator confirms that the sliding pallet 3 is locked, the container door 1 can be closed, and the entire loading and unloading operation is complete. During transportation, no matter how bumpy the vehicle is, the goods are fixed to the sliding pallet 3 as one unit, and the sliding pallet 3 itself is firmly fixed to the sturdy slide rail structure 2 by the locking mechanism 4, thus fundamentally eliminating the risk of goods shifting or tipping over inside the container. At the same time, all mechanical impacts and loads are borne by the dedicated slide rail structure 2, limit blocks 5, and locking mechanism 4, effectively protecting the side panels and bottom of container 1 from damage.

[0043] The technical solution described in the above-mentioned embodiments of this application, through the "outside-cabin loading, whole-house loading" operation mode, moves the core loading and unloading process to the outside of the cabin. Utilizing guide rails and locking mechanisms, it greatly improves loading and unloading efficiency and reduces labor intensity and operational risks. Its dedicated load-bearing mechanism effectively protects the structure of container 1, and through the integrated fixing of cargo and pallets, it fundamentally eliminates cargo displacement, ensuring transportation safety. The system has a simple and reliable structure and strong practicality.

[0044] Obviously, the above-described embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, then this utility model also intends to include these modifications and variations.

Claims

1. A sliding rail type container entry system, characterized in that, It includes a container (1), a sliding rail structure (2), a sliding pallet (3), a locking mechanism (4), a limit block (5), and a binding fixing point (6), among which, The slide rail structure (2) is fixedly installed at the inner bottom of the container (1) along the length direction of the container (1) to provide guidance and support for the cargo-carrying components; The sliding pallet (3) is disposed above the slide rail structure (2), and the bottom of the sliding pallet (3) is in sliding fit with the slide rail structure (2) for bearing goods to be loaded and unloaded; The limiting block (5) is detachably fixed to the end of the slide rail structure (2) near the depth inside the container (1) to limit the travel end point of the sliding pallet (3) on the slide rail structure (2); The locking mechanism (4) is partially housed inside the limiting block (5), and its operating part is exposed on the side of the limiting block (5) facing the sliding tray (3). The locking mechanism (4) and the bottom of the sliding tray (3) form an unlockable engaging engagement, which is used to lock the sliding tray (3) onto the slide rail structure (2) after it touches the limiting block (5). The binding and fixing points (6) are evenly distributed on the upper surface edge of the sliding pallet (3) and are used to fix the goods to the sliding pallet (3) as a whole by means of straps and rope connectors.

2. The container sliding rail entry system according to claim 1, characterized in that, The slide rail structure (2) includes two parallel long strips (21), which are parallel to the two sides of the bottom of the container (1). The cross-section of the track (21) is U-shaped, and the U-shaped opening faces upward. The track (21) is made of high-strength alloy steel, and the bottom of the track (21) is detachably fixed to the mounting hole at the bottom of the container (1) by bolts.

3. The container sliding rail entry system according to claim 1, characterized in that, The sliding tray (3) is made of high-strength aluminum alloy. The length and width of the sliding tray (3) are adapted to the length of the bottom of the container (1) and the spacing between the two slide rail structures (2), respectively. A pulley group (31) is fixedly installed at each of the four corners of the bottom of the sliding tray (3). The pulley group (31) includes at least two parallel nylon pulleys (311). The nylon pulleys (311) are embedded in the U-shaped groove of the slide rail structure (2) and form a rolling fit with the groove wall. The bottom of the sliding tray (3) is also provided with a lock hole (32) adapted to the locking mechanism (4). The lock hole (32) is located below the end of one side of the sliding tray (3).

4. A container sliding rail entry system according to claim 3, characterized in that, The locking mechanism (4) includes a locking pin (41), a control button (42), and a return spring (43). The locking pin (41) passes through the limiting block (5) in a direction perpendicular to the length of the slide rail structure (2), and one end of the locking pin (41) can extend into the lock hole (32) of the sliding tray (3), and the other end is fixedly connected to the control button (42). The control button (42) is exposed on the side of the limiting block (5) away from the sliding tray (3). The return spring (43) is sleeved on the section of the locking pin (41) located inside the limiting block (5), and one end of the return spring (43) abuts against the inner wall of the limiting block (5), and the other end abuts against the outer wall of the locking pin (41), for providing elastic force that makes the locking pin (41) tend to extend toward the lock hole (32).

5. A sliding rail type container entry system according to claim 1, characterized in that, The binding fixing point (6) is an upward protruding hook structure (61). The hook structure (61) is made of stainless steel, and there are no less than 4 hook structures (61), which are symmetrically distributed at the midpoints of the four sides on the upper surface of the sliding tray (3). The top of the hook structure (61) is provided with an arc transition part (611) to avoid scratching the straps and ropes.

6. A container sliding rail entry system according to claim 1, characterized in that, The limiting block (5) is made of rubber buffer material, and the height of the limiting block (5) is higher than the upper surface of the slide rail structure (2). The limiting block (5) has an arc-shaped buffer surface (51) on the side facing the sliding tray (3), and the arc-shaped buffer surface (51) is adapted to the end edge of the sliding tray (3). The limiting block (5) is also fitted with a metal reinforcing rib (52), and the metal reinforcing rib (52) is welded and fixed to the end of the slide rail structure (2).

7. A container sliding rail entry system according to claim 3, characterized in that, The upper surface of the sliding pallet (3) is also provided with uniformly distributed anti-slip protrusions. The anti-slip protrusions are rubber bumps with a height of 2-3mm, which are used to increase the friction between the goods and the sliding pallet (3) and prevent the goods from shifting on the sliding pallet (3).

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