Opening and closing degree control mechanism for lower side door of container

Abstract

The invention discloses an opening and closing degree control mechanism for a lower side door of a container. The opening and closing degree control mechanism comprises a driving mechanism and a locking mechanism. The driving mechanism is a manual worm transmission mechanism and comprises a worm gear, a worm and a lock rod. The multiple sets of locking mechanisms are arranged on a lower side beam of the container, each set of locking mechanism comprises a locking hook assembly and an adjusting arm, a first L-shaped connecting plate of each locking hook assembly is hinged to the corresponding locking rod connecting block in a driving mode and located between the lower side door of the container and the corresponding locking rod in a rotating mode, and a link rod mechanism with a motion dead point in the locked state is formed. The control mechanism adjusts opening, closing and stopping of the lower side door by controlling the rotation amount of the worm gear and the worm, the adjusting arm, the lock rod and the lock hook are connected to form a four-connecting-rod mechanism, and the side door is prevented from being opened by mistake according to the principle that a connecting plate in the adjusting arm and the lock rod form a middle connecting block to form a connecting rod dead point; according to the control mechanism, the pressing force of the locking hook assembly on the lower side door can be adjusted through the adjusting rod in the adjusting arm, and more stable locking is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical design and manufacturing, and more particularly to the technical field of container design and manufacturing, and specifically relates to a control mechanism for the opening and closing degree of the lower side door of a container. Background Art

[0002] With the rapid development of multimodal transport, more and more goods are transported by containers. The high-speed, fast, and automated requirements of road transport put forward higher requirements for the performance of containers. In existing bulk cargo containers, the unloading opening of the container is arranged at the lower part of the side wall of the container according to the unloading requirements. When the side door is opened, the goods in the container push open the side door by their own gravity to achieve self-unloading of the goods. In this process, it is necessary to control the opening and closing degree of the side opening door, otherwise it may cause personal injury or economic losses. Therefore, it is necessary to study a safer, more stable, and more convenient operation container side door opening and closing control mechanism. Summary of the Invention

[0003] The present invention discloses a control mechanism for the opening and closing degree of the lower side door of a container according to the deficiencies of the prior art. The purpose of the present invention is to provide a safe, stable, and convenient operation container side door opening and closing control mechanism that can control the opening and closing degree according to needs.

[0004] The present invention is realized through the following technical solutions:

[0005] A control mechanism for the opening and closing degree of the lower side door of a container, the container is an upward-folding opening structure at the lower part of the side door, and is characterized in that: the control mechanism includes a driving mechanism and a locking mechanism;

[0006] The driving mechanism is a manual worm transmission mechanism, including a worm and a locking rod; the worm is hinged and installed on one side of the container corner post through a mounting seat and is in driving cooperation with the worm gear, and the worm gear is sleeved and fixed on the locking rod of the locking rod assembly; the locking rod assembly includes a locking rod, and the locking rod is vertically installed and hinged to the lower side door edge on the other side of the container corner post through a plurality of locking rod mounting seats, and a plurality of groups of connecting blocks arranged in parallel are provided on the locking rod;

[0007] A plurality of sets of locking mechanisms are arranged on the lower side beam of the container, and each set of locking mechanisms includes a locking hook assembly and an adjusting arm; the locking hook assembly includes an L-shaped locking hook arranged vertically, the foot end of the L-shaped locking hook is hinged and installed on the lower side beam of the container through a locking hook mounting seat, the upper end is provided with a roller and is in sliding contact with the lower side door panel of the container, and the middle part is drivingly hinged to the connecting plate two of the adjusting arm through a hinge shaft; the adjusting arm includes an L-shaped connecting plate one arranged horizontally, the outer end of the horizontal part of the L-shaped connecting plate one is connected to the connecting plate two through an adjustable connecting rod, and the other end is drivingly hinged to the locking rod connecting block and is rotatably arranged between the lower side door of the container and the locking rod to form a linkage mechanism with a dead point of motion in the locking state.

[0008] Furthermore, the adjusting link rod for further connecting the L-shaped connecting plate 1 horizontally to the connecting plate 2 is a threaded adjusting rod, and the threaded end is threadedly engaged with a nut provided on the connecting plate 2 to achieve telescopic adjustment.

[0009] Furthermore, a detachable ratchet wrench is provided at the outer end of the worm for driving the worm to rotate.

[0010] Furthermore, the worm gear is a sector-shaped worm gear, and teeth for driving cooperation with the worm are provided on the outer periphery of the sector.

[0011] Furthermore, a U-shaped roller mounting groove is provided at the upper end of the L-shaped locking hook, and a roller is hinged and mounted through a roller pin shaft.

[0012] Furthermore, an anti-drop ring is provided on the locking rod. The anti-drop ring is of a circular ring structure and is provided with a threaded hole and fixed on the locking rod by a screw for preventing the worm gear from falling off the locking rod.

[0013] Furthermore, a locking rod baffle is provided at the end of the locking rod. The locking rod baffle is a rectangular plate, and a circular hole is opened in the middle and fixed on the front bottom cross beam by bolts for preventing the locking rod from moving outwards and providing a radial restraint.

[0014] Furthermore, for the locking rod mounting seat, the locking rod mounting seat is formed by connecting two channel-shaped parts through bolts. The two channel-shaped parts are provided with notches facilitating the passing of the locking rod round tube, which not only plays a supporting role but also a limiting role when the locking rod rotates and is convenient for installation.

[0015] For the lower side door opening and closing degree control mechanism of the present invention, the lower side door is pressed tightly by the locking hook assembly of the mechanical opening and closing control mechanism, and the locking hook assembly is connected to the locking rod assembly through an adjusting arm. During use, by rotating the ratchet wrench at the end of the side wall, the worm gear and worm structure is driven to rotate. The rotation of the worm gear and worm drives the locking rod assembly to rotate, thereby driving the adjusting arm to push open the lower side door.

[0016] The control mechanism of the present invention adjusts the opening, closing and stopping of the lower side door by controlling the rotation amount of the worm gear and worm, and forms a four-bar linkage through the connection of the adjusting arm, the locking rod and the locking hook. By utilizing the principle of the dead point of the linkage formed by the connecting plate in the adjusting arm and the connecting block in the locking rod assembly, the side opening door is prevented from being accidentally opened and can only be opened by controlling the rotation of the worm gear and worm. The control mechanism of the present invention can also adjust the pressing force of the locking hook assembly on the lower side door by using the adjusting rod in the adjusting arm to achieve more stable locking.

[0017] The beneficial effects of the lower side door opening and closing degree control mechanism of the present invention for a container are as follows:

[0018] 1. Improve safety: The opening and closing degree control mechanism of the lower side door of the container in the present invention controls the opening and closing degree of the side opening door through a worm and worm gear, thereby controlling the unloading speed of the grain and avoiding personal injuries and property losses caused by the too-fast opening of the lower side door. The adjusting arm, lock rod and lock hook of the opening and closing degree control mechanism of the lower side door of the container in the present invention form a four-bar linkage mechanism, and the dead point of the linkage is used to prevent the side opening door from being accidentally opened.

[0019] 2. Convenient operation: The opening and closing degree control mechanism of the lower side door of the container in the present invention controls the worm and worm gear by rotating a ratchet wrench on the side wall, and controls the opening and closing of the two lower side doors for side opening at one time. The structure is simple and the operation is light.

[0020] 3. Do not affect the volume: The opening and closing degree control mechanism of the lower side door of the container in the present invention is located at the lower part of the underframe, does not occupy the storage space inside the box, and does not affect the volume of the container.

[0021] 4. Structural stability: The opening and closing degree control mechanism of the lower side door of the container in the present invention compresses and locks the lower side door through a locking hook assembly. After the locking hook is compressed, the locking hook realizes self-locking through a worm and worm gear structure to ensure the stability of the locking mechanism. Description of the Drawings

[0022] Figure 1 is a schematic installation structure diagram of the control mechanism of the present invention;

[0023] Figure 2 is a schematic diagram of the worm and worm gear of the control mechanism of the present invention;

[0024] Figure 3 is a schematic diagram of the lock rod assembly of the control mechanism of the present invention;

[0025] Figure 4 is a schematic diagram of the adjusting arm of the control mechanism of the present invention;

[0026] Figure 5 is a schematic diagram of the locking hook assembly of the control mechanism of the present invention;

[0027] Figure 6 is a schematic diagram of the locking structure of the control mechanism of the present invention.

[0028] In the figure, 1 is a ratchet wrench, 2 is a worm and worm gear, 3 is a lock rod assembly, 4 is an adjusting arm, 5 is a locking hook assembly, 6 is a seat plate, 7 is a reinforcing plate, 8 is a mounting seat, and 9 is a lower side door;

[0029] 2-1 is a turbine, 2-2 is a worm, 3-1 is a locking rod, 3-2 is an anti-disengagement ring, 3-3 is a connecting block, 3-4 is a locking rod mounting seat, 3-5 is a locking rod baffle, 3-6 is a round tube, 4-1 is an adjusting link, 4-2 is a connecting block 1, 4-3 is a connecting plate 1, 4-4 is a connecting plate 2, 4-5 is a connecting block 2, 4-6 is a pin shaft, 5-1 is a locking hook, 5-2 is a locking hook mounting seat, 5-3 is a pin shaft, 5-4 is a roller mounting groove, 5-5 is a roller, 5-6 is a roller pin shaft, 5-7 is a sleeve. Detailed implementation mode

[0030] The present invention will be further described below in conjunction with the detailed implementation mode. The detailed implementation mode is a further explanation of the principle of the present invention and does not limit the present invention in any way. The same or similar technologies to the present invention do not exceed the protection scope of the present invention.

[0031] In conjunction with the attached drawings.

[0032] As shown in the figure, the opening and closing degree control mechanism of the lower side door of the container in this embodiment includes a driving mechanism and a locking mechanism; the container is an upper-turning opening structure for the lower side door.

[0033] The driving mechanism is a manual worm transmission mechanism, including a worm gear 2 and a locking rod assembly 3; the worm 2-2 is hinged and installed on one side of the container corner post through a mounting seat 8 and is in driving cooperation with the worm gear 2-1, and the worm gear 2-1 is sleeved and fixed on the locking rod 3-1 of the locking rod assembly 3; the locking rod assembly 3 includes a locking rod 3-1, and the locking rod 3-1 is vertically installed and hinged to the edge of the lower side door 9 on the other side of the container corner post through a plurality of locking rod mounting seats 3-4, and a plurality of groups of connecting blocks 3-3 arranged in parallel are provided on the locking rod 3-1;

[0034] A plurality of sets of locking mechanisms are arranged on the lower side beam of the container. Each set of locking mechanisms includes a locking hook assembly 5 and an adjusting arm 4; the locking hook assembly 5 includes an L-shaped locking hook 5-1 arranged vertically. The foot end of the L-shaped locking hook 5-1 is hinged and installed on the lower side beam of the container through a locking hook mounting seat 5-2, the upper end is provided with a roller 5-5 and is in sliding contact with the plate of the lower side door 9 of the container, and the middle part is in driving hinge connection with the connecting plate 2 4-4 of the adjusting arm 4 through a hinge shaft; the adjusting arm 4 includes an L-shaped connecting plate 1 4-2 arranged horizontally. The horizontal outer end of the L-shaped connecting plate 1 4-2 is connected to the connecting plate 2 4-4 through an adjustable link 4-1, and the other end is vertically terminated and is in driving hinge connection with the locking rod connecting block 3-3 and is rotatably arranged between the lower side door 9 of the container and the locking rod 3-1 to form a linkage mechanism with a dead point of motion in the locking state.

[0035] The adjusting link 4-1 for horizontally connecting the connecting plate 2 4-4 of the L-shaped connecting plate 1 4-2 is a threaded adjusting rod, and the threaded end is in threaded cooperation with the nut arranged on the connecting plate 2 4-4 to achieve telescopic adjustment.

[0036] A detachable ratchet wrench 1 is provided at the outer end of the worm 2-2 for driving the rotation of the worm 2-2.

[0037] The worm gear 2-1 is a sector worm gear, and teeth for driving cooperation with the worm 2-2 are provided on the outer periphery of the sector.

[0038] At the upper end of the L-shaped locking hook 5-1, a U-shaped roller mounting groove 5-4 is provided and the roller 5-5 is hinged and mounted through a roller pin shaft 5-6.

[0039] An anti-drop ring is provided on the locking rod 3-1. The anti-drop ring is of a circular ring structure and is provided with a threaded hole and fixed on the locking rod 3-1 by a screw for preventing the worm gear 2-1 from falling off the locking rod 3-1.

[0040] A locking rod baffle 3-5 is provided at the end of the locking rod 3-1. The locking rod baffle 3-5 is a rectangular plate with a circular hole opened in the middle and fixed on the front bottom cross beam by bolts for preventing the locking rod 3-1 from moving outwards and providing a radial constraint.

[0041] The locking rod mounting seat 3-4 is formed by connecting two channel-shaped parts through bolts. The two channel-shaped parts are provided with notches for the locking rod round tube to pass through, which play a supporting role and a limiting role when the locking rod 3-1 rotates and are convenient for installation.

[0042] As Figure 1 shown, the opening and closing degree control mechanism of the lower side door of this embodiment is a mechanical control mechanism. When the lower side door 9 is opened, the ratchet wrench 1 is rotated to drive the rotation of the worm gear 2, thereby driving the rotation of the locking rod assembly 3. After the locking rod assembly 3 rotates, the adjusting arm 4 on the locking rod is driven to push forward, thereby loosening the locking hook assembly 5 on the lower side door 9 to realize the opening of the lower side door 9. When the lower side door 9 is closed, the ratchet wrench is rotated in the reverse direction to make the locking hook assembly 5 press the lower side door 9 to realize the closing of the lower side door 9. The worm gear is fixed on the end part and the side wall through the seat plate 6, the reinforcing plate 7, the mounting seat 8.

[0043] As Figure 2 shown, the worm gear 2 is composed of a worm wheel 2-1 and a worm 2-2.

[0044] As Figure 3 shown, the locking rod assembly 3 is composed of a locking rod 3-1, an anti-drop ring 3-2, a connecting block 3-3, a further 3-4, a locking rod baffle 3-5, and a round tube 3-6.

[0045] As Figure 4 shown, the adjusting arm 4 is composed of an adjusting connecting rod 4-1, a connecting block one 4-2, a connecting plate one 4-3, a connecting plate two 4-4, a connecting block two 4-5, and a pin shaft 4-6.

[0046] As Figure 5As shown in the figure, the locking hook assembly 5 is composed of a locking hook 5-1, a locking hook mounting plate 5-2, a pin shaft 5-3, a roller mounting groove 5-4, a roller 5-5, a roller pin shaft 5-6, and a sleeve 5-7.

[0047] The locking hook assembly 5 is fixed to the lower side beam of the container side wall through the locking hook mounting plate 5-2.

Claims

1. A container lower side door opening and closing degree control mechanism, wherein the container has a side door lower part flip-up opening structure, characterized in that: The control mechanism includes a driving mechanism and a locking mechanism; The driving mechanism is a manual worm gear transmission mechanism, which includes a worm gear and a locking rod. The worm gear is hingedly mounted on one side of the corner column of the container through a mounting seat and cooperates with the worm gear drive. The worm gear is fixed on the locking rod of the locking rod assembly. The locking rod assembly includes a locking rod, which is vertically mounted and hinged to the lower side door on the other side of the corner column of the container through multiple locking rod mounting seats and the worm gear. The locking rod is provided with multiple groups of connecting blocks arranged in parallel with each other. Multiple sets of locking mechanisms are arranged on the lower beam of the container, and each set of locking mechanisms includes a locking hook assembly and an adjusting arm; the locking hook assembly includes a vertically arranged L-shaped locking hook, the foot end of the L-shaped locking hook is hingedly installed on the lower beam of the container through a locking hook mounting seat, a roller is arranged on the upper end and is in sliding contact with the lower door panel of the container, and the middle part is driven and hinged with the connecting plate 2 of the adjusting arm through a hinge shaft; the adjusting arm includes a transversely arranged L-shaped connecting plate 1, the transverse outer end of the L-shaped connecting plate 1 is connected to the connecting plate 2 through an adjustable connecting rod, the other end of the vertical terminal is driven and hinged with the locking rod connecting block and is located between the lower door of the container and the locking rod and is rotatably arranged to form a linkage mechanism with a movement dead point in a locked state.

2. The container lower door opening and closing degree control mechanism according to claim 1, characterized in that: The adjustment connecting rod of the L-shaped connecting plate 1 horizontally connected to the connecting plate 2 is a threaded adjustment rod, and the threaded end cooperates with the nut thread arranged on the connecting plate 2 to realize telescopic adjustment.

3. The container lower door opening and closing degree control mechanism according to claim 1, characterized in that: A detachable ratchet wrench is arranged at the outer end of the worm for driving the worm to rotate.

4. The container lower door opening and closing degree control mechanism according to claim 1, characterized in that: The worm wheel is a fan-shaped worm wheel, and teeth cooperating with the worm drive are arranged on the fan-shaped outer periphery.

5. The container lower door opening and closing degree control mechanism according to claim 1, characterized in that: The upper end of the L-shaped lock hook is provided with a U roller installation groove and the roller is hingedly installed through a roller pin.

6. The container lower door opening and closing degree control mechanism according to claim 1, characterized in that: The lock rod is provided with an anti-slip ring; the anti-slip ring is a circular ring structure, a threaded hole is provided on the anti-slip ring and is fixed to the lock rod by screws to prevent the worm gear from falling off the lock rod.

7. The container lower door opening and closing degree control mechanism according to claim 1, characterized in that: A lock rod baffle is arranged at the end of the lock rod; the lock rod baffle is a rectangular plate with a round hole in the middle; the lock rod baffle is fixed to the front end bottom cross beam by bolts to prevent the lock rod from moving outward and provide radial constraints.

8. The container lower door opening and closing degree control mechanism according to claim 1, characterized in that: The locking rod mounting seat is formed by two groove-shaped parts connected by bolts. The two groove-shaped parts are provided with a notch through which the locking rod round tube passes, and are used to support and limit the rotation of the locking rod.

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