A double-door type separable modular mine transport box body and a use method thereof
By designing a double-door, separable, modular mining transport container and adopting a modular design and a six-bar locking mechanism, the problems of low standardization and poor locking and vibration resistance in traditional mining car transportation have been solved, achieving efficient and safe material transportation and loading/unloading.
Patent Information
- Application Number
- CN202411706392.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2044-11-26
AI Technical Summary
Traditional mining trucks suffer from low standardization, low automation in loading, poor locking and vibration resistance, high labor costs, harsh working conditions for workers, and safety hazards.
A double-door, separable, modular mining transport container was designed. It adopts a modular design and includes a container assembly, corner post assembly, double door assembly, and locking assembly. The container is separable from the carrying platform through camera recognition and positioning, and a six-bar locking assembly is used to ensure a firm and reliable connection between the container and the platform.
It improves transportation efficiency, realizes the separability of the container and the carrying platform, has good vibration resistance and fast transportation capability, and can complete the loading and unloading of different types of materials on the carrying platform, reducing labor costs and safety hazards.
Smart Images

Figure CN119750054B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mine material transportation, and in particular to a double-door detachable modular mine transport container and its usage method. Background Technology
[0002] In recent years, as the cornerstone of my country's energy security, the coal industry has transformed from manual and semi-mechanized to automated processes in its development. It is now on the trend of intelligent transformation. Specifically, in terms of coal and mineral material transportation, traditional mine car transportation has problems such as low standardization, low degree of automation in loading, poor locking and vibration resistance, high labor costs, harsh working environment for workers, and easy to cause safety hazards. Summary of the Invention
[0003] The purpose of this invention is to provide a double-door detachable modular mining transport container and its usage method, so as to solve at least one of the technical problems in the background art.
[0004] The present invention provides a double-door detachable modular mining transport container, comprising:
[0005] The enclosure assembly includes a long side panel, a short side panel, and a bottom panel. The bottom panel has square notches at its four corners. There are two short side panels, which are respectively fixed to the two short side edges of the bottom panel. The long side panel is fixed to one of the long side edges of the bottom panel.
[0006] A corner post assembly includes a corner post, which is a columnar structure. Corner pieces are fixed to the top and bottom of the corner post. The bottom of the corner post passes through the square notch and is fixed to the base plate. The side edges of the long side plate and the short side plate are respectively fixed to the corresponding corner post.
[0007] The double-door assembly includes two opposing doors, one side edge of which is hinged to a corresponding corner post. A lock is provided between the door and the base plate. One of the doors has a lock plate, and the other has a latch. When the door is closed, the lock secures the door to the base plate. The lock plate and the latch cooperate to secure the two doors together. The base plate, the doors, the long side plate, the short side plate, and the base plate together form a box structure with an open top.
[0008] Optionally, reinforcing ribs are fixed to the outer surfaces of the long side plate, the short side plate, the door, and the bottom plate.
[0009] Optionally, the upper ends of the long side plate, the short side plate, and the box door are flush.
[0010] Optionally, both the corner post and the corner piece are hollow structures;
[0011] The outer side of the corner piece has a locking hole that penetrates its hollow cavity.
[0012] Optionally, it also includes:
[0013] A crossbeam assembly, comprising a long crossbeam and a short crossbeam, the tops of which are closely attached to the bottom surface of the base plate, and both ends of which are respectively fixed to the corner pieces at the bottom of the corresponding corner posts; the short crossbeam and the long crossbeam each have a strip-shaped notch in the middle for the forks to pass through.
[0014] Optionally, it may also include: a hosting platform;
[0015] The load-bearing platform includes: a frame assembly, a body assembly, a locking assembly, and a wheel assembly;
[0016] The frame assembly includes: a steel plate, a fixed frame, and an openable and closable plate, wherein the steel plate is fixed to the fixed frame, and the openable and closable plate is pivotally connected to the steel plate via a hinge.
[0017] The vehicle body assembly includes: a pin, a pin anti-disengagement ring, a buffer, a bumper base, and a vehicle body beam. The pin anti-disengagement ring is fixed to the bumper base, which has a cavity. The buffer can be inserted into the cavity from the outside to the inside and protrudes outward from the outer side wall of the bumper base. The buffer has a insertion hole, and the pin passes through the upper wall of the cavity of the bumper base, the pin anti-disengagement ring, and the buffer sequentially from top to bottom. The bumper base is fixed to the vehicle body beam, and the vehicle body beam is fixed to the mounting bracket.
[0018] The locking assembly includes: a first link, a second link, a third link, a fourth link, a bracket, a lock head, a lock handle, a latch, a slider, a bearing, and a retaining ring. The bracket is fixed to the fixed frame and has a sliding cavity. A slider is slidably connected within the sliding cavity. The side wall of the sliding cavity has a sliding groove. The slider has a laterally outwardly protruding sliding protrusion that is slidably connected to the sliding groove. The bearing is fixedly sleeved on the outer side wall of the lock handle. The retaining ring is engaged with the lock handle, and the bearing is engaged between two retaining rings. The slider is fixedly sleeved on the outer side wall of the bearing. The lock handle has an L-shaped rod structure. The lock head is fixed to the upper end of the lock handle. The horizontal rod of the lock handle is located outside the bracket. A limiting disc is fixed to the vertical rod of the lock handle. The limiting disc is located below the lock head and is used to prevent the lock handle from reaching its highest position. The lock head can extend upward beyond the bracket and into the corner cavity below the corner post, so that the box assembly is fixed to the support platform; the lower end of the bracket is fixed with a lower cantilever extending laterally outward, and the upper end is fixed with an upper cantilever extending laterally outward; one end of the first connecting rod is hinged to the outer end of the lower cantilever, and the other end is connected to one end of the second connecting rod, and the other end of the second connecting rod is connected to the sliding protrusion; the fourth connecting rod has an L-shaped arm structure, the free end of the lateral arm of the fourth connecting rod is hinged to the outer end of the upper cantilever, the buckle is fixed to the vertical free end of the fourth connecting rod, and extends towards the bracket to enter into the corner cavity below the corner post; the lower end of the third connecting rod is hinged to the outer end of the second connecting rod, and the upper end is hinged to the lower corner of the fourth connecting rod;
[0019] The wheel assembly includes a wheel and an axle clip, the wheel being pivotally connected to the axle clip and the axle clip being fixed to the vehicle body crossbeam.
[0020] Optionally, the first link, the second link, the third link, the fourth link, the bracket, and the slider form a six-bar linkage, with the slider being the driving member. The lock handle is configured such that when the lower locking hole of the corner piece below the corner post is aligned with the lock head, the lock handle drives the slider to move upward. The inner end of the second link moves upward with the sliding protrusion and moves synchronously under the linkage of the first and third links. The outer end of the second link moves upward and simultaneously moves laterally outward, causing the upper end of the first link to rotate around the first link. The lower end of the mechanism rotates upward and outward, causing the third link to move upward. The third link pushes the fourth link to rotate upward around the lateral free end of the fourth link, causing the buckle to move towards the side locking hole of the corner piece below the corner post. When the slider moves upward to its position, the lock head passes upward through the lower locking hole. The limiting disc restricts the lock head from rising further. The buckle engages in the side locking hole. The second link is at its dead point position. Rotating the lock handle causes the lock head to engage in the locking hole, thus securing the housing assembly to the support platform.
[0021] Optionally, the relationship between the rotation angle α of the fourth link and the lead H of the slider is as follows:
[0022]
[0023] in, The length of the first link. The length of the second link. The length of the third link. The length of the fourth link. β This is the clamp between the first connecting rod and the vertical direction. γ It is the angle between the third link and the horizontal direction.
[0024] The present invention provides a method for using a double-door detachable modular mining transport container. The method of using the transport container includes:
[0025] Loading stage: When the carrying platform reaches the designated position, bring the container assembly close to the carrying platform. When the container assembly reaches the target position, align the corresponding corner pieces with the lock heads, lower the container assembly onto the carrying platform, and fix the container assembly to the carrying platform using the locking components. Open the container door to prepare for loading. After loading is completed, close and lock the container door. Loading is complete.
[0026] Unloading stage: Unlock the locking components, detach the container assembly from the carrying platform, and transport it to the designated location.
[0027] Optionally, during the loading stage, the positioning of the container assembly is achieved by using two binocular stereo vision systems composed of four cameras to acquire images and extract edge features and texture features as feature vectors for the identification of the transport container. When the target position is reached, the corner pieces are aligned with the lock heads and lowered onto the carrying platform by the lifting device. Then, the cameras identify and position the four locking components on the carrying platform and the four corner pieces at the bottom of the transport container. The four cameras identify and position the corresponding four locking components respectively, guide the corresponding locking components to lock, open the lock of the double door assembly and open the upper latch at the same time, and open the two doors outward. After loading is completed, the doors are closed and the locks and latches are closed.
[0028] During the unloading stage, four cameras are used to identify and locate the corresponding four locking components, guiding the corresponding locking components to unlock. The open-top container is then lifted by a spreader and separated from the carrying platform for transport to a designated location.
[0029] The locking steps include: when the housing assembly is lowered onto the support platform and recognized by the camera, the lock handle is pushed upward, the lock handle moves the slider upward, the top lock head of the lock handle passes through the bracket through hole, the lock head passes through the bracket and is fully exposed, the slider moves and drives the second link to move to a horizontal state, the first link and the third link both rotate to a vertical state and are collinear, the fourth link rotates until its horizontal bar is horizontal, the buckle is inserted into the corner piece side hole, the transmission angle of the first link is 0°, forming a dead point, the lock handle rotates 90°, the lock head is misaligned with the bracket through hole, the downward movement of the lock head is restricted, the vertical position of the lock handle is fixed, and the locking steps are completed.
[0030] The unlocking steps include: rotating the lock handle 90°, aligning the lock head with the bracket through hole, pulling the handle down, moving the lock head downward through the bracket through hole, causing the lock handle to move the slider downward, rotating the first link, releasing the dead point, and the fourth link's latch extending from the corner piece side hole, thus completing the unlocking steps.
[0031] The double-door detachable modular mining transport container and its usage method provided by this invention have the following beneficial effects:
[0032] The double-door, detachable modular transport container, with its modular design, allows for the separation of the container and the carrying platform, improving transport efficiency. It can transport small components and manually handleable materials thanks to its double-door design. The dead-point fixed locking assembly is robust, reliable, and vibration-resistant, with good tensile, compressive, and lateral force resistance. While ensuring rapid transport of specific materials, it achieves detachable modularity and allows for loading and unloading on the carrying platform. Through the coordinated operation of warehouse lifting devices and robotic arms, it can complete the loading and unloading tasks of different types of materials. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0034] Figure 1 This is a schematic diagram of the overall double-door separable modular mining transport box provided in an embodiment of the present invention, wherein the box assembly, corner post assembly, and double-door assembly are not assembled together.
[0035] Figure 2 for Figure 1 Schematic diagram of the middle box assembly structure;
[0036] Figure 3 for Figure 1 Schematic diagram of the center corner column assembly;
[0037] Figure 4 for Figure 1 Schematic diagram of the double-door assembly structure;
[0038] Figure 5 for Figure 1 Schematic diagram of the middle crossbeam assembly;
[0039] Figure 6 This is a schematic diagram of the overall structure of the carrying platform in the double-door separable modular mining transport container provided in an embodiment of the present invention.
[0040] Figure 7 for Figure 6 Schematic diagram of the CRRC frame assembly;
[0041] Figure 8 for Figure 6 Schematic diagram of the body component structure;
[0042] Figure 9a for Figure 6 A three-dimensional structural diagram of the central locking assembly;
[0043] Figure 9b for Figure 9a A bottom view of the central locking assembly;
[0044] Figure 9c for Figure 9a Schematic diagram of the lock cylinder and handle;
[0045] Figure 10 for Figure 6 Schematic diagram of the wheel assembly structure;
[0046] Figures 11a-11c forFigure 6 A schematic diagram of the locking assembly.
[0047] Figure 12 This is a three-dimensional structural diagram of the double-door separable modular mining transport box provided in an embodiment of the present invention, with the box and the rental platform in a locked state.
[0048] Figure 13a for Figure 12 The exploded view shows the container and the leased platform separated.
[0049] Figure 13b for Figure 13a A magnified view of part of G0;
[0050] Figure 14a This is a three-dimensional structural schematic diagram of the double-door detachable modular mining transport box provided in an embodiment of the present invention;
[0051] Figure 14b for Figure 14a A magnified view of a portion of G1;
[0052] Figure 14c for Figure 14a A magnified schematic diagram of a portion of G2;
[0053] Figure 14d for Figure 14a A magnified view of a portion of G3;
[0054] Figure 15 This is a three-dimensional structural schematic diagram of the double-door detachable modular mining transport box provided in an embodiment of the present invention;
[0055] Figure 16a This is a three-dimensional structural schematic diagram of the double-door detachable modular mining transport box provided in an embodiment of the present invention;
[0056] Figure 16b for Figure 16a Enlarged view of part of G4 in the middle;
[0057] Figure 16c for Figure 16a Enlarged view of a section of G5 in China;
[0058] Figure 17a for Figure 12 A schematic diagram of the main structure of the double-door detachable modular mining transport box provided in the embodiment of the present invention;
[0059] Figure 17b for Figure 17a Enlarged view of part of G6 in the middle;
[0060] Figure 18a for Figure 17a Schematic diagram of the AA section;
[0061] Figure 18b for Figure 18a Enlarged view of part of G7 in the middle;
[0062] Figure 19a for Figure 12 A side view of the double-door detachable modular mining transport box provided in this embodiment of the invention;
[0063] Figure 19b for Figure 19a Enlarged view of part of G8 in the middle;
[0064] Figure 20a for Figure 19a Schematic diagram of the BB section;
[0065] Figure 20b for Figure 20a Enlarged schematic diagram of a portion of G9;
[0066] Figure 21a for Figure 19a Schematic diagram of the CC section;
[0067] Figure 21b for Figure 21a Enlarged schematic diagram of a portion of G10;
[0068] Figure 22 This is a schematic diagram of the control process for a double-door enclosure.
[0069] Figure 23 This is a schematic diagram of the locking and unlocking process of the locking component.
[0070] In the picture:
[0071] 100 - Enclosure assembly; 110 - Long side panel; 120 - Short side panel; 130 - Bottom plate;
[0072] 200-corner post assembly; 210-corner post; 220-corner piece;
[0073] 300 - Double door assembly; 310 - Cabinet door; 320 - Hinge; 330 - Lock; 340 - Lock plate; 350 - Locking latch;
[0074] 400 - Crossbeam assembly; 410 - Long crossbeam; 420 - Short crossbeam;
[0075] 500 - Load-bearing platform;
[0076] 510 - Chassis assembly; 511 - Steel plate; 512 - Fixture; 513 - Openable / closable flatbed;
[0077] 520 - Body assembly; 521 - Pin; 522 - Pin anti-disengagement ring; 523 - Buffer; 524 - Collision head base; 525 - Body crossbeam;
[0078] 530-Locking assembly; 5301-First link; 5302-Second link; 5303-Third link; 5304-Fourth link; 5305-Bracket; 5306-Lock head; 5307-Lock handle; 5308-Snap fastener; 5309-Slider; 5310-Bearing; 5311-Snap ring; 5312-Lower cantilever; 5313-Upper cantilever;
[0079] 540 - Wheel assembly; 541 - Wheel; 542 - Axle clip. Detailed Implementation
[0080] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0081] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.
[0082] This invention provides a double-door, detachable, modular mining transport container, such as... Figures 1-21b As shown, the transport container includes: a container assembly 100, corner post assemblies 200, and a double-door assembly 300. This transport container is designed for detachable modular transport and can transport small components and manually handleable materials by virtue of its double-door feature.
[0083] like Figure 2 As shown, the housing assembly 100 includes a long side plate 110, a short side plate 120 and a bottom plate 130. The bottom plate 130 has square notches at its four corners. There are two short side plates 120, which are respectively fixed to the two short side edges of the bottom plate 130. The long side plate 110 is fixed to one of the long side edges of the bottom plate 130.
[0084] like Figure 3 As shown, the corner post assembly 200 includes a corner post 210, which is a columnar structure. Corner pieces 220 are fixed at the top and bottom of the corner post 210. The bottom of the corner post 210 passes through a square notch and is fixed to the base plate 130. The side edges of the long side plate 110 and the short side plate 120 are respectively fixed to the corresponding corner post 210.
[0085] like Figure 4As shown, the double-door assembly 300 includes two opposing doors 310. One side edge of each door 310 is pivotally connected to a corresponding corner post 210 via a hinge 320. A lock 330 is provided between the door 310 and the base plate 130. One of the two doors 310 is provided with a lock plate 340, and the other is provided with a latch 350. When the door 310 is closed, the lock 330 fixes the door 310 to the base plate 130. The lock plate 340 and the latch 350 cooperate to fix the two doors 310 together. The base plate 130, the door 310, the long side plate 110, the short side plate 120, and the base plate 130 together form a box structure with an open top. Specifically, the base of hinge 320 is welded to corner post 210, and the other end is welded to door 310. There are two hinges on each side. The outer side of door 310 has a reinforcing rib structure to improve rigidity. No reinforcing rib is provided at the position where hinge 320 is welded. The outer dimension of door is half the length of side panel in the length direction, and space is left to ensure that door 310 will not interfere with each other when closed. The two bases of lock 330 are fixed to the reinforcing rib of door 310 with bolts. The locking structure is installed below. Since there is no top crossbeam above door 310, the locking structure fixed to the crossbeam at the top of the lock rod is removed. The lock can be unlocked by first pulling the handle upward to the limit device and then turning it outward. Lock plate 340 is welded to the left end of door, with an opening left at the lock hook position. Lock buckle 350 is welded to the corresponding position on the right end of door. The lock handle at that position on door can be directly moved up and down to lock or unlock lock buckle 350. It should be noted that hinge 320, lock 330, lock plate 340, and latch 350 are all purchased components; existing products can be used instead. Figure 14c , Figure 14d , Figure 16c As shown.
[0086] In this embodiment of the invention, reinforcing ribs are fixed to the outer surfaces of the long side plate 110, the short side plate 120, the door 310, and the bottom plate 130. The upper ends of the long side plate 110, the short side plate 120, and the door 310 are flush. The long side plate 110 and the short side plate 120 are set to have different lengths but the same height. The reinforcing rib structure on the outside of the long side plate 110, the short side plate 120, and the bottom plate 130 can improve the rigidity of the box. The two side plates are welded to the inner surfaces of the corner post assembly 200 on both sides and to the bottom plate 130 on the bottom. The bottom plate 130 is welded to the corner post 210, and square holes with the same shape as the corner post 210 are cut at the four corners so that the bottom plate 130 will not interfere with the corner post 210.
[0087] In this embodiment of the invention, the outer surface of the corner piece 220 has a locking hole penetrating its hollow cavity. Both the corner post 210 and the corner piece 220 are hollow structures; the corner piece 220 is welded to the top and bottom of the corner post 210. During welding, due to different installation positions, each corner piece needs to expose a surface with three holes. Specifically, the upper surface and two outer surfaces of the top corner piece have locking holes, and the lower surface and two outer surfaces of the bottom corner piece have locking holes. The corner post 210 is used as a connecting and fixing component. The hollow structure can effectively reduce the weight of the box. Two corner posts 210 need to leave installation positions for the hinges in the double door assembly 300. The corner posts 210 are welded to the four corners of the base plate 130. The corner post assembly 200 is used to fix and install the hinges of the box assembly 100, the beam assembly 400, and the double door assembly 300.
[0088] like Figure 5 As shown, in this embodiment of the invention, it further includes: a crossbeam assembly 400, which includes a long crossbeam 410 and a short crossbeam 420. The tops of both the short crossbeam 420 and the long crossbeam 410 are tightly attached to the lower surface of the base plate 130, and both ends are respectively fixed to corner pieces 220 at the bottom of the corresponding corner posts 210; both the short crossbeam 420 and the long crossbeam 410 have a strip-shaped notch in the middle for forklifts to pass through. Specifically, the two ends of the short crossbeam 420 and the long crossbeam 410 are welded to the inner side of the corner piece 220, the tops are tightly attached to the lower surface of the base plate 130, and a hole (strip-shaped hole, strip-shaped notch) is left in the middle to allow forklift forks to pass through, facilitating forklift transportation.
[0089] In this embodiment of the invention, the transport container further includes: a carrying platform 500; such as Figure 6 As shown, the support platform 500 includes: a frame assembly 510, a body assembly 520, a locking assembly 530, and a wheel assembly 540; the support platform 500 can support modular boxes.
[0090] like Figure 7 As shown, the frame assembly 510 includes: a steel plate 511, a fixing frame 512, and an openable / closable plate 513. The steel plate 511 is fixed to the fixing frame 512, and the openable / closable plate 513 is pivotally connected to the steel plate 511 via hinges. Specifically, the steel plate 511 has openings at its four corners according to the setting positions of the locking components, and is welded to the fixing frame 512. The fixing frame 512 is welded to the vehicle body via two middle crossbeams. The openable / closable plate 513 is connected to the steel plate 511 via hinges. The openable / closable plate 513 can be opened by moving the plate pins on both sides. When closed, the openable / closable plate 513 can be locked by pulling up the openable / closable plate 513 and moving the plate pins back to their original positions.
[0091] like Figure 8 , Figure 14b , Figure 21a , Figure 21bAs shown, the car body assembly 520 includes: a pin 521, a pin anti-derailment ring 522, a buffer 523, a bumper base 524, and a car body crossbeam 525. The pin anti-derailment ring 522 is fixed to the bumper base 524, which has a cavity. The buffer 523 can be inserted into the cavity from the outside to the inside and protrudes outward from the outer side wall of the bumper base 524. The buffer 523 has an insertion hole. The pin 521 passes through the pin anti-derailment ring 522, the upper wall of the cavity of the bumper base 524, and the buffer 523 from top to bottom. The bumper base 524 is fixed to the car body crossbeam 525, which is fixed to the fixing frame 512. Specifically, when the chain reaches the pin hole position, the pin 521 can be inserted into the pin hole, which can connect the car body sections into a train, which is pulled by a locomotive or a hoisting winch to run on the track. The anti-detachment ring 522 is welded to the bumper base 524 and works in conjunction with the pin 521 to effectively prevent the pin from jumping off during transportation. The buffer 523 has a insertion hole and is installed inside the bumper base 524, secured by a pin. The bumper base 524 is used to install the buffer 523, with a pin hole drilled in the center for inserting the pin 521. Holes are also drilled at the mounting location on the rear body crossbeam 525, and it is secured to the body crossbeam 525 with six rivets to ensure a firm and reliable connection. A hole is drilled in the middle of the body crossbeam 525 for installing the axle clip 542.
[0092] like Figure 9a , Figure 9b , Figure 14c , Figure 16b , Figure 17a , Figure 17b , Figure 18a , Figure 18b , Figure 19a , Figure 19b , Figure 20a , Figure 20b As shown, the locking assembly 530 includes: a first link 5301, a second link 5302, a third link 5303, a fourth link 5304, a bracket 5305, a lock head 5306, and a lock handle 5307 (as shown). Figure 9cThe lock comprises a buckle 5308, a slider 5309, a bearing 5310, and a retaining spring 5311. A bracket 5305 is fixed to a fixed frame 512. The bracket 5305 has a sliding cavity, within which the slider 5309 is slidably connected. The side wall of the sliding cavity has a sliding groove. The slider 5309 has a laterally outwardly protruding sliding protrusion, which is slidably connected to the sliding groove. The bearing 5310 is fixedly sleeved on the outer side wall of the lock handle 5307. The retaining spring 5311 is engaged with the lock handle 5307, and the bearing 5310 is also engaged with the retaining spring 5311. Between two retaining rings 5311; slider 5309 is fixedly sleeved on the outer side wall of bearing 5310; lock handle 5307 is an L-shaped rod structure, lock head 5306 is fixedly mounted on the upper end of lock handle 5307, the horizontal rod of lock handle 5307 is located outside the bracket 5305, and a limiting disc is fixedly mounted on the vertical rod of lock handle 5307. The limiting disc is located below lock head 5306 and is used to limit the movement of lock handle 5307 to the highest position. Lock head 5306 can extend upward from bracket 5310. 305 extends into the cavity of the corner piece 220 below the corner post 210, so that the box assembly 100 is fixed to the bearing platform 500; the lower end of the bracket 5305 is fixed with a horizontally outward extending lower cantilever 5312, and the upper end is fixed with a horizontally outward extending upper cantilever 5313; one end of the first connecting rod 5301 is hinged to the outer end of the lower cantilever 5312, and the other end is connected to one end of the second connecting rod 5302; the other end of the second connecting rod 5302 is connected to the sliding protrusion; the... The four-link 5304 has an L-shaped arm structure. The free end of the lateral arm of the fourth link 5304 is hinged to the outer end of the upper cantilever 5313. The buckle 5308 is fixed to the free end of the vertical arm of the fourth link 5304 and extends towards the bracket 5305 so as to extend into the cavity of the corner piece 220 below the corner post 210. The lower end of the third link 5303 is hinged to the outer end of the second link 5302, and the upper end is hinged to the lower corner of the fourth link 5304.
[0093] Specifically, such as Figure 17a , Figure 17b , Figure 18a , Figure 18b , Figure 19a , Figure 19b , Figure 20a , Figure 20bAs shown, the locking assembly 530 includes a lock head 5306, a bracket 5305, a lock handle 5307, a first connecting rod 5301, a second connecting rod 5302, a third connecting rod 5303, a latch 5308, and a fourth connecting rod 5304. The fourth connecting rod 5304 and the latch 5308 are the same component, i.e., they are an integral structure. Similarly, the lock handle 5307 and the lock head 5306 are the same component, i.e., they are an integral structure. The upper wall of the sliding cavity of the bracket 5305 is provided with a through hole, which is an irregularly shaped hole, such as an oblong hole. The cross-sectional shape of the lock head 5306 is adapted to the through hole so that the lock head 5306 can pass through the through hole, extend out of the bracket 5305, pass through the locking hole at the bottom of the corner piece 220, and then extend into the interior of the corner piece 220. When the lock head 5306 rotates, the lock head 5306 will be blocked by the upper edge of the through hole to prevent the lock head 5306 from sliding down. The lock handle 5307 is assembled with the inner ring of the bearing 5310, and is limited at the top and bottom by the retaining spring 5311. The outer ring of the bearing 5310 is assembled with the slider 5309, which serves as the driving component of the six-bar linkage. The bracket 5305 is embedded in the groove of the frame 525 through a right-angle structure at the front end. A round hole in the center allows the lock head 5306 to pass through. When the locking hole of the corner piece at the bottom of the housing aligns with the lock head 5306, the lock head 5306 is raised, the slider 5309 moves upward, and the corresponding connecting rod rotates. When it reaches the target position, the lock head 5306 passes through the locking hole, and the limiting disc of the lock handle 5307 abuts against the upper inner wall of the sliding cavity, thus restricting the lock head 5306 from rising further. At this time, the buckle 5308 on the fourth connecting rod 5304 engages in the locking hole on the side of the corner piece, and the second connecting rod 5302 is at its dead point. Rotating the lock handle 5307 completes the locking process. The lock head 5306 is locked inside the corner piece, the position of the lock handle 5307 is fixed, and the spatial movement of the connected slider 5309 is restricted, eliminating the influence of vibration on the dead point. When unlocking, the lock handle 5307 resets, and the lock head 5306 falls through the round hole (the through hole provided on the upper wall of the slide cavity) of the bracket 5305 to the lower surface of the bracket 5305, driving the corresponding connecting rod to rotate, and the dead point position of the second connecting rod 5302 is released. The pull of the first connecting rod 5301 and the second connecting rod 5302 restricts the descent of the lock head 5306.
[0094] like Figure 10 As shown, the wheel assembly 540 includes a wheel 541 and an axle clip 542. The wheel 541 is pivotally connected to the axle clip 542, and the axle clip 542 is fixed to the vehicle body crossbeam 525. Specifically, the wheel 541 consists of two left and right track wheels firmly pressed onto the same axle. The axle clip 542 is a connector between the vehicle body and the wheel, and can be installed on the axle by insertion. Holes are drilled in the connecting portion of the axle clip 542, and it is fixed to the vehicle body crossbeam 525 by rivets. Figure 6 As shown.
[0095] In this embodiment of the invention, as shown in Figure 11, Figure 18b , 20bAs shown, the first link 5301, the second link 5302, the third link 5303, the fourth link 5304, the bracket 5305, and the slider 5309 form a six-bar linkage, with the slider 5309 being the driving member. The lock handle 5307 is configured such that when the lower locking hole of the corner piece 220 below the corner post 210 is aligned with the lock head 5306, the lock handle 5307 drives the slider 5309 to move upward. The inner end of the second link 5302 moves upward along with the slider and moves synchronously under the linkage of the first link 5301 and the third link 5303. The outer end of the second link 5302 moves upward and simultaneously moves laterally outward, causing the upper end of the first link 5301 to rotate around the first link 5304. The lower end of the first connecting rod 5301 rotates upward and outward, causing the third connecting rod 5303 to move upward. The third connecting rod 5303 pushes the fourth connecting rod 5304 to rotate upward around the lateral free end of the fourth connecting rod 5304, causing the buckle 5308 to move towards the side locking hole of the corner piece 220 below the corner post 210. When the slider 5309 moves upward into place, the lock head 5306 passes upward through the lower locking hole. The limiting disc restricts the lock head 5306 from continuing to rise, and the buckle 5308 is engaged in the side locking hole. The second connecting rod 5302 is in the dead point position. When the lock handle 5307 is rotated, the lock head 5306 is engaged in the locking hole, fixing the box assembly 100 to the bearing platform 500.
[0096] In this embodiment of the invention, the lock is designed as a six-bar linkage with one degree of freedom. The driving component is a slider 5309, which moves in the vertical direction, driving the second link 5302 and the first link 5301 to move. A coordinate system is established, and based on the coordinate projection method, equations are established to decompose the six-bar linkage into a four-bar linkage (e.g.,...). Figure 11b ) and crank-slider mechanism (such as Figure 11c With the help of the intermediate variable β, the relationship between the rotation angle α of the fourth link (5304) and the lead H of the slider can be solved.
[0097] Based on the geometric relationships of the four-bar linkage, the following equations are established:
[0098] (1)
[0099] (2)
[0100] Combining equations (1) and (2), we can obtain:
[0101] (3)
[0102] Based on the geometric relationship of the crank-slider mechanism, the following equations are established:
[0103] (4)
[0104] In summary, the relationship between the rotation angle α of the fourth link 5304 and the lead H of the slider 5309 can be obtained:
[0105] (5)
[0106] in, The length of the first link 5301, The length of the second link 5302 The length of the third link 5303, The length of the fourth link is 5304. β The angle between the first link 5301 and the vertical direction. γ This is the angle between the third link 5303 and the horizontal direction. It is 75mm. It is 90mm. It is 74mm. Taking 34mm as an example.
[0107] This invention also provides a method for using a double-door, detachable, modular mining transport container. Using the aforementioned transport container, such as... Figures 22-23 As shown, the usage method includes:
[0108] Loading stage: When the carrying platform 500 reaches the designated position, bring the box assembly 100 close to the carrying platform 500. When the box assembly 100 reaches the target position, align the corresponding corner piece 220 with the lock head 5306, lower the box assembly 100 onto the carrying platform 500, and fix the box assembly 100 to the carrying platform 500 by locking assembly 530. Open the box door 310 to prepare for loading. After loading is completed, close and lock the box door 310. The loading stage is complete.
[0109] Unloading stage: Unlock the locking component 530, detach the container component 100 from the carrying platform 500, and transport it to the designated location.
[0110] In this embodiment of the invention, during the loading stage, the positioning of the container assembly 100 is achieved by acquiring images through two binocular stereo vision systems composed of four cameras, and taking edge features and texture features as feature vectors for the identification of the transport container. When the target position is reached, the corner pieces 220 are aligned with the lock heads 5306 and lowered onto the carrying platform 500 by the lifting device. Then, the cameras identify and locate the four locking components 530 on the carrying platform 500 and the four corner pieces 220 at the bottom of the transport container. The four cameras identify and locate the corresponding four locking components 530 respectively, guide the corresponding locking components 530 to lock, open the lock of the double door assembly 300 and open the upper latch at the same time, and open the two doors 310 to the outside. After loading is completed, the doors 310 are closed and the locks and latches are closed. During the unloading stage, the four cameras identify and locate the corresponding four locking components 530 respectively, guide the corresponding locking components 530 to unlock, and the lifting device lifts the container and separates it from the carrying platform 500 for transport to the designated location.
[0111] The locking process includes: when the housing assembly 100 is lowered onto the support platform 500 and recognized by the camera, the handle of the locking handle 5307 is pushed upwards. The locking handle 5307 drives the slider 5309 to move upwards. The lock head 5306 at the top of the locking handle 5307 passes through the through hole of the bracket 5305. This through hole is an irregularly shaped hole, such as an oblong hole, located on the upper wall of the sliding cavity. The cross-sectional shape of the lock head 5306 is adapted to this through hole. When the lock head 5306 passes through the bracket 5305 and is fully exposed, the slider 5309 moves, causing the second connecting rod 5302 to move to a horizontal position. The first connecting rod 5301 and the second connecting rod 5302... All three links 5303 rotate to a vertical position and are collinear. The fourth link 5304 rotates until its horizontal rod is horizontal. The buckle 5308 is inserted into the side hole (side locking hole) of the corner piece. The transmission angle of the first link 5301 is 0°, forming a dead point. The handle of the lock handle 5307 rotates 90°. The lock head 5306 is misaligned with the through hole of the bracket 5305, and the downward movement of the lock head 5306 is restricted. The limiting disc is in close contact with the inner wall of the sliding cavity of the bracket 5305, that is, the upper surface of the limiting disc abuts against the upper inner wall of the sliding cavity. The vertical position of the lock handle 5307 is fixed, completing the locking step. Figure 18b , Figure 20b , Figure 23 As shown;
[0112] The unlocking steps include: rotating the handle of lock handle 5307 by 90°, aligning the lock head 5306 with the through hole of bracket 5305, pulling the handle downwards, causing the lock head 5306 to move downwards through the through hole of bracket 5305, and the lock handle 5307 driving the slider 5309 downwards, rotating the first connecting rod 5301, releasing the dead point, and allowing the latch 5308 of the fourth connecting rod 5304 to extend from the side hole (side locking hole) of the corner piece, thus completing the unlocking steps. Figure 13b , Figure 23 As shown.
[0113] It should be noted that ordinary mine car boxes cannot be loaded and unloaded on the carrying platform. The transport box provided in this embodiment of the invention can achieve the requirement of separability and modularity by adding corner fittings. Standard corner fittings are located at the eight vertices, allowing for transport to the separation destination using lifting equipment. The external dimensions of the box are consistent with the modularity requirements, and modularity is achieved by ensuring the distance between the corner posts. The transportation of the double-door separable modular mine transport box can be divided into two stages: loading and unloading. Figure 22 The control flowchart shown illustrates the loading stage as follows: The flatbed truck reaches the designated position, and the double-door container approaches the platform. Specifically, a lifting device is used to move the double-door container to be loaded close to the carrying platform, and cameras position the container. The positioning of the double-door container is achieved through two binocular stereo vision systems composed of four cameras, capturing images and extracting edge and texture features as feature vectors for container identification. When the double-door container reaches the target position, the corner piece 220 at the bottom of the corner post 210 aligns with the lock head. The container is then lowered onto the carrying platform. Specifically, the lifting device again lowers the double-door container onto the carrying platform 50. 0. Then, the camera identifies the locking components 530. Specifically, the camera identifies and locates the four locking components 530 on the carrying platform 500 and the four corner pieces 220 at the bottom of the transport container. The four cameras identify and locate the corresponding four locking components 530 respectively. Then, the robotic arm locks the container. Specifically, the robotic arm is guided to lock the corresponding locking components. At this time, the container is fixed to the carrying platform 500. The locks on the double-door assembly can be opened, and the upper latches can be opened at the same time. The two doors open outwards, allowing for convenient loading of materials. After loading is completed, the doors are closed, and the locks and latches are closed. See also... Figure 22 The control flow chart shows that the unloading stage is as follows: the camera identifies the locking component 530; specifically, the four cameras identify and locate the corresponding four locking components respectively; then, the robotic arm unlocks, specifically, the corresponding robotic arm is guided to unlock the corresponding locking component; the double-door container is lifted and separated from the carrying platform 500, that is, the double-door container is lifted by the spreader and separated from the carrying platform 500, and transported to the designated location.
[0114] In summary, when transporting a double-door detachable modular transport container, the container assembly 100 is first brought close to the support platform 500. Two binocular stereo vision systems composed of four cameras are used to acquire images, and edge features and texture features are taken as feature vectors for container recognition. When the target position is reached, the corresponding corner hole of the corner piece 220 is aligned with the lock head 5306, and the container is lowered to the support platform by the lifting device and locked by the locking assembly 530. When unloading, the lock handle 5307 is reset first, and the lock head 5306 can pass through the corresponding locking hole of the corner piece 220 and fall below the upper surface of the bracket 5305 to complete the unlocking. At this time, the container can be lifted to complete the separation. By introducing a double-door detachable modular transport container and its supporting platform, corner fittings, and locking structure, and adopting a modular design, the detachable characteristics of the container and the supporting platform are achieved, improving transport efficiency. The six-bar mechanism of the locking assembly features a dead-point fixed locking structure, which is robust, reliable, and vibration-resistant, as well as good tensile, compressive, and lateral force resistance. This embodiment of the invention also introduces a multi-camera recognition and positioning technology based on machine vision. By recognizing and positioning the container and the locking assembly, the robotic arm is guided to lock and unlock the corresponding locking components, improving the automation level of the operation. By introducing a double-door detachable modular transport container and its supporting platform, and adopting a modular design, the detachable characteristics are achieved, and the transport efficiency is improved, making this material transport container and its supporting platform applicable to a wide range of scenarios in the field of mine material transport.
[0115] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0116] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "installation" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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; 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 the present invention.
Claims
1. A double-door, detachable, modular mining transport container, characterized in that, include: The housing assembly (100) includes a long side plate (110), a short side plate (120), and a bottom plate (130). The bottom plate (130) has square notches at its four corners. There are two short side plates (120), which are respectively fixed to the two short side edges of the bottom plate (130). The long side plate (110) is fixed to one of the long side edges of the bottom plate (130). An angle post assembly (200) includes an angle post (210), which is a columnar structure. An angle piece (220) is fixed to the top and bottom of the angle post (210). The bottom of the angle post (210) passes through the square notch and is fixed to the base plate (130). The side edges of the long side plate (110) and the short side plate (120) are respectively fixed to the corresponding angle post (210). The double-door assembly (300) includes two opposing doors (310), one side edge of which is pivotally connected to the corresponding corner post (210) via a hinge (320); a lock (330) is provided between the door (310) and the base plate (130); one of the two doors (310) is provided with a lock plate (340), and the other is provided with a latch (350); The support platform (500) includes: a frame assembly (510), a body assembly (520), a locking assembly (530), and a wheel assembly (540); the locking assembly (530) includes: a first link (5301), a second link (5302), a third link (5303), a fourth link (5304), a bracket (5305), a lock head (5306), a lock handle (5307), a buckle (5308), a slider (5309), a bearing (5310), and a retaining ring (5311). The bracket (5305) is fixed to the fixing frame (512) of the frame assembly (510). The bracket (5305) has a sliding cavity, in which a slider (5309) is slidably connected. 09), the side wall of the sliding cavity has a sliding groove, the slider (5309) has a transversely outwardly protruding sliding protrusion, the sliding protrusion is slidably connected to the sliding groove; the bearing (5310) is fixedly sleeved on the outer side wall of the lock handle (5307), the snap ring (5311) is snapped on the lock handle (5307), and the bearing (5310) is snapped between the two snap rings (5311); the slider (5309) is fixedly sleeved on the outer side wall of the bearing (5310); the lock handle (5307) has an L-shaped rod structure, the lock head (5306) is fixedly installed at the upper end of the lock handle (5307), and the transverse rod of the lock handle (5307) is located outside the bracket (5305). A limiting disc is fixed to the vertical rod of the lock handle (5307). The limiting disc is located below the lock head (5306) and is used to prevent the lock handle (5307) from reaching its highest position. The lock head (5306) can extend upward beyond the bracket (5305) and into the cavity of the corner piece (220) below the corner post (210), so that the box assembly (100) is fixed to the bearing platform (500). A lower cantilever (5312) extending laterally outward is fixed to the lower end of the bracket (5305), and an upper cantilever (5313) extending laterally outward is fixed to the upper end. One end of the first connecting rod (5301) is hinged to the outer end of the lower cantilever (5312), and the other end... The first end is connected to one end of the second link (5302), and the other end of the second link (5302) is connected to the sliding protrusion; the fourth link (5304) is an L-shaped arm structure, the free end of the horizontal arm of the fourth link (5304) is hinged to the outer end of the upper cantilever (5313), the buckle (5308) is fixed to the vertical free end of the fourth link (5304), and extends toward the bracket (5305) to extend into the cavity of the corner piece (220) below the corner post (210); the lower end of the third link (5303) is hinged to the outer end of the second link (5302), and the upper end is hinged to the lower corner of the fourth link (5304).
2. The transport container according to claim 1, characterized in that, The outer surfaces of the long side plate (110), the short side plate (120), the box door (310), and the bottom plate (130) are all fixed with reinforcing ribs.
3. The transport container according to claim 1, characterized in that, The upper ends of the long side plate (110), the short side plate (120), and the box door (310) are flush.
4. The transport container according to claim 1, characterized in that, Both the corner post (210) and the corner piece (220) are hollow structures; The outer side of the corner piece (220) has a locking hole that penetrates its cavity.
5. The transport container according to any one of claims 1-4, characterized in that, Also includes: A crossbeam assembly (400) includes a long crossbeam (410) and a short crossbeam (420). The tops of both the short crossbeam (420) and the long crossbeam (410) are close to the bottom surface of the base plate (130), and both ends are fixed to the corner pieces (220) at the bottom of the corresponding corner posts (210). Both the short crossbeam (420) and the long crossbeam (410) have a strip-shaped notch in the middle for forks to pass through.
6. The transport container according to claim 5, characterized in that, The frame assembly (510) includes: a steel plate (511), a fixing frame (512), and an openable and closable plate (513). The steel plate (511) is fixed to the fixing frame (512), and the openable and closable plate (513) is pivotally connected to the steel plate (511) via a hinge. The body assembly (520) includes: a pin (521), a pin anti-disengagement ring (522), a buffer (523), a bumper base (524), and a body beam (525). The pin anti-disengagement ring (522) is fixed to the bumper base (524). The bumper base (524) has a cavity. The buffer (523) can be inserted into the cavity from the outside to the inside and protrudes outward from the outer side wall of the bumper base (524). The buffer (523) has a insertion hole. The pin (521) passes through the upper wall of the cavity of the bumper base (524), the pin anti-disengagement ring (522), and the buffer (523) from top to bottom. The bumper base (524) is fixed to the body beam (525), and the body beam (525) is fixed to the mounting bracket (512). The wheel assembly (540) includes a wheel (541) and an axle clip (542), the wheel (541) being pivotally connected to the axle clip (542), the axle clip (542) being fixed to the vehicle body crossbeam (525).
7. The transport container according to claim 6, characterized in that, The first link (5301), the second link (5302), the third link (5303), the fourth link (5304), the bracket (5305), and the slider (5309) form a six-bar linkage, with the slider (5309) being the driving member. The lock handle (5307) is configured such that when the lower locking hole of the corner piece (220) below the corner post (210) is aligned with the lock head (5306), the lock handle (5307) drives the slider (5309) to move upward. The inner end of the second link (5302) moves upward with the sliding protrusion and moves synchronously under the linkage of the first link (5301) and the third link (5303). The outer end of the second link (5302) moves upward and simultaneously moves laterally outward, causing the upper end of the first link (5301) to rotate around the first... The lower end of the connecting rod (5301) rotates upward and outward, causing the third connecting rod (5303) to move upward. The third connecting rod (5303) pushes the fourth connecting rod (5304) to rotate upward around the lateral free end of the fourth connecting rod (5304), causing the buckle (5308) to move toward the side locking hole of the corner piece (220) below the corner post (210) until the slider (5309) moves upward into place. The lock head (5306) passes upward through the lower locking hole. The limiting disc restricts the lock head (5306) from continuing to rise. The buckle (5308) is engaged in the side locking hole. The second connecting rod (5302) is in the dead point position. The lock handle (5307) is rotated, and the lock head (5306) is engaged in the locking hole, fixing the box assembly (100) to the bearing platform (500).
8. The transport container according to claim 6, characterized in that, The relationship between the rotation angle α of the fourth link (5304) and the lead H of the slider is as follows: in, The length of the first link. The length of the second link. The length of the third link. The length of the fourth link. β It is the clamp between the first link and the vertical direction.
9. The transport container according to any one of claims 1-4, characterized in that, After the box door (310) is closed, the lock (330) fixes the box door (310) to the bottom plate (130). The lock plate (340) and the latch (350) cooperate to fix the two box doors (310) together. The bottom plate (130), the box door (310), the long side plate (110), the short side plate (120) and the bottom plate (130) together form a box structure with an open top.
10. A method of using a double-door, detachable, modular mining transport container, characterized in that, Using the transport container according to any one of claims 1-9, the method of use includes: Loading stage: When the carrying platform reaches the designated position, bring the container assembly close to the carrying platform. When the container assembly reaches the target position, align the corresponding corner pieces with the lock heads, lower the container assembly onto the carrying platform, and fix the container assembly to the carrying platform using the locking components. Open the container door to prepare for loading. After loading is completed, close and lock the container door. Loading is complete. Unloading stage: Unlock the locking components, detach the container assembly from the carrying platform, and transport it to the designated location.
11. The method of use according to claim 10, characterized in that, During the loading stage, the positioning of the container assembly is achieved by two binocular stereo vision systems composed of four cameras acquiring images and taking edge and texture features as feature vectors for the identification of the transport container. When the target position is reached, the corner pieces are aligned with the lock heads and lowered to the carrying platform by the lifting device. Then, the cameras identify and locate the four locking components on the carrying platform and the four corner pieces at the bottom of the transport container. The four cameras identify and locate the corresponding four locking components respectively, guide the corresponding locking components to lock, open the lock of the double door assembly and open the upper latch at the same time, and open the two doors outward. After loading is completed, the doors are closed and the locks and latches are closed. During the unloading stage, four cameras are used to identify and locate the corresponding four locking components, guiding the corresponding locking components to unlock. The open-top container is then lifted by a spreader and separated from the carrying platform for transport to a designated location. The locking process includes: when the housing assembly is lowered onto the support platform and recognized by the camera, the lock handle is pushed upwards, the lock handle moves the slider upwards, the top lock head passes through the bracket through hole, the lock head passes through the bracket and is fully exposed, the slider moves and drives the second link to move to a horizontal position, the first link and the third link both rotate to a vertical position and are collinear, the fourth link rotates until its horizontal bar is horizontal, the buckle is inserted into the corner fitting side hole, the transmission angle of the first link is 0°, forming a dead point, the lock handle rotates 90°, the lock head is misaligned with the bracket through hole, the downward movement of the lock head is restricted, the vertical position of the lock handle is fixed, and the locking process is completed. The unlocking steps include: rotating the lock handle 90°, aligning the lock head with the bracket through hole, pulling the handle down, moving the lock head downward through the bracket through hole, causing the lock handle to move the slider downward, rotating the first link, releasing the dead point, and the fourth link's latch extending from the corner piece side hole, thus completing the unlocking steps.
Citation Information
Patent Citations
Uncovered separable modular mining transportation box body and use method thereof
CN119840960A