A connecting rod locking mechanism

The locking assembly connected by the crank rod uses a drive device to achieve synchronous locking or unlocking, which solves the problem of low efficiency in unlocking one by one in the existing technology, improves loading and unloading efficiency and adapts to complex terrain.

CN224377128UActive Publication Date: 2026-06-19SHANGHAI PAIHAI MARINE EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI PAIHAI MARINE EQUIP CO LTD
Filing Date
2025-06-26
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing linkage locking mechanisms require individual operation during unlocking, resulting in low loading and unloading efficiency and making them difficult to apply to complex terrains with obstacles.

Method used

The locking assembly, which uses a crank-connected mechanism, uses a drive device to bring the first and second transmission components closer together or further apart, thereby driving the locking component to move longitudinally to achieve synchronous locking or unlocking. The crank design avoids obstructing personnel.

Benefits of technology

It achieves synchronous unlocking, improves loading and unloading efficiency, and can be used normally in complex terrain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a connecting rod locking mechanism, including a plurality of mounting frame, be equipped with locking assembly in mounting frame, through a bending lever articulation between any adjacent locking assembly, and the bending lever is connected with driving arrangement, and the upper end of mounting frame is equipped with the locking mouth, and the locking assembly includes fixed base, and the first transmission part and second transmission part of fixed base rotation connection, and the coincident part of first transmission part, second transmission part and bending lever is equipped with through -hole, and the through -hole is equipped with the pin shaft in wear, and the pin shaft is with first transmission part, second transmission part and bending lever can rotate around its axial rotation, and one end of second transmission part is connected with locking piece, and the bending lever includes left side bending lever, right side bending lever, connecting rod, and left side bending lever is connected with right side bending lever through connecting rod. The utility model can improve the efficiency of loading and unloading.
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Description

Technical Field

[0001] This utility model relates to the field of unloading, and in particular to a linkage locking mechanism. Background Technology

[0002] Currently, linkage locking mechanisms are widely used in loading and unloading operations of various goods. They securely lock the goods to the transport platform, ensuring the stability and safety of the goods during transportation. However, unlocking requires unlocking each one individually, which is very inconvenient. At the same time, existing linkage locking mechanisms use straight rods, which are difficult to apply to complex terrain with obstacles, seriously affecting loading and unloading efficiency. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the current linkage locking mechanism, this utility model can achieve synchronous unlocking and improve loading and unloading efficiency.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0005] A linkage locking mechanism includes several mounting brackets, each mounting bracket housing a locking assembly. The locking assemblies are characterized by being hinged together by a crank rod, the crank rod being connected to a driving device. The upper end of each mounting bracket has a locking port. Each locking assembly includes a fixed base, a first transmission member and a second transmission member rotatably connected to the fixed base. A through hole is provided on the overlapping portion of the first transmission member, the second transmission member, and the crank rod. A pin passes through the through hole, allowing the first transmission member, the second transmission member, and the crank rod to rotate about their axial direction. One end of the second transmission member is connected to a locking member, which can move up and down within the locking port. The crank rod includes a left curved rod, a right curved rod, and a connecting rod. The left curved rod is connected to the right curved rod via the connecting rod. The crank rod enables the locking assemblies to lock or unlock synchronously.

[0006] According to one aspect of this utility model, the bending openings of both the left-side bending rod and the right-side bending rod are arranged facing upwards.

[0007] According to one aspect of the present invention, the drive device is connected to the left bending rod or the right bending rod.

[0008] According to one aspect of the present invention, the locking member includes a locking part, a limiting part, and a transmission part connected sequentially from top to bottom.

[0009] According to one aspect of the present invention, the diameter of the limiting part is larger than the diameter of the locking part or the transmission part.

[0010] According to one aspect of the present invention, a washer is provided on the locking part.

[0011] According to one aspect of the present invention, the diameter of the washer is not greater than the diameter of the limiting portion.

[0012] According to one aspect of the present invention, the driving device is a hydraulic cylinder.

[0013] According to one aspect of the present invention, the first transmission member includes two opposing first transmission plates, and the second transmission member is disposed between the two first transmission plates.

[0014] According to one aspect of the present invention, the second transmission member includes two opposing second transmission plates, and the crank is disposed between the two second transmission plates.

[0015] The advantages of this utility model are: the first and second transmission components are brought closer or further apart by the driving device, thereby driving the locking component to move longitudinally to achieve locking or unlocking, which is simple and convenient to operate; the crank rod enables several locking devices to lock or unlock synchronously. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a first schematic diagram of the locking assembly described in this utility model;

[0019] Figure 3 This is a second schematic diagram of the locking assembly described in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the locking component described in this utility model;

[0021] Figure 5 This is a cross-sectional view of the mounting bracket described in this utility model.

[0022] 1. Fixed base; 2. First transmission component; 21. First transmission plate; 3. Second transmission component; 31. Second transmission plate; 4. Pin; 5. Locking component; 51. Locking part; 52. Limiting part; 53. Transmission part; 6. Mounting bracket; 7. Drive device; 8. Locking port; 9. Crank rod; 91. Left bending rod; 92. Right bending rod; 93. Connecting rod. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 5 As shown, a linkage locking mechanism includes several mounting brackets 6, each housing a locking component. Adjacent locking components are hinged together by a crank rod, which is connected to a driving device 7. The upper end of the mounting bracket 6 has a locking port 8. Each locking component includes a fixed base 1, a first transmission member 2 rotatably connected to the fixed base 1, and a second transmission member 3. A through hole is provided on the overlapping portion of the first transmission member 2, the second transmission member 3, and the crank rod. A pin 4 passes through the through hole, allowing the first transmission member 2, the second transmission member 3, and the crank rod to rotate around its axial direction. One end of the second transmission member 3 is connected to a locking member 5, which can move up and down within the locking port 8. The crank rod includes a left curved rod, a right curved rod 92, and a connecting rod 93. The left curved rod is connected to the right curved rod 92 via the connecting rod 93. The crank rod enables the locking members 5 to lock or unlock synchronously. The drive unit 7 drives the crank to move laterally, causing the first transmission component 2 and the second transmission component 3 to move closer or further apart, thereby driving the locking component 5 to move longitudinally to achieve locking or unlocking. Traditional straight rods can easily obstruct personnel during use. By using the crank, the upper space is utilized to prevent obstruction during loading and unloading, further improving loading and unloading efficiency.

[0025] In use, the crank is driven to the right by the drive device 7, which causes the first transmission component 2 and the second transmission component 3 to move closer to each other, and causes the locking component 5 to move downward to unlock. The crank causes the locking assembly to unlock synchronously.

[0026] In practical applications, the bends of both the left and right curved rods 92 are set facing upwards.

[0027] In practical applications, the drive unit 7 is connected to the left bending rod or the right bending rod 92.

[0028] In practical applications, the locking component 5 includes a locking part 51, a limiting part 52, and a transmission part 53 connected sequentially from top to bottom.

[0029] In practical applications, the diameter of the limiting part 52 is larger than the diameter of the locking part 51 or the transmission part 53. The limiting part 52 limits the movement of the locking member 5 to prevent it from exceeding the preset range of motion and causing wear.

[0030] In practical applications, a washer is fitted onto the locking part 51. The washer reduces wear and extends the product's service life.

[0031] In practical applications, the diameter of the washer should not exceed the diameter of the limiting part 52 to prevent uneven force on the washer.

[0032] In practical applications, the drive unit 7 is a hydraulic cylinder. Using a hydraulic cylinder makes operation more convenient.

[0033] In practical applications, the first transmission component 2 includes two opposing first transmission plates 21, and the second transmission component 3 is located between the two first transmission plates 21. The transmission structure is more stable.

[0034] Specifically, a washer is provided between the first transmission plate 21 and the fixed base 1. The washer reduces the lateral clearance and enhances the structural stability.

[0035] In practical applications, the second transmission component 3 includes two opposing second transmission plates 31, with the crank rod positioned between the two second transmission plates 31. This results in a more robust transmission structure.

[0036] The advantages of this invention are: the locking components are unlocked synchronously by means of the crank; the first transmission component 2 and the second transmission component 3 move closer or further apart, thereby driving the locking component 5 to move longitudinally to achieve locking or unlocking, which is simple and convenient to operate.

[0037] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A connecting rod locking mechanism comprising a plurality of mounting brackets (6) in which locking assemblies are provided, characterized in that, Any adjacent locking components are hinged together by a crank rod, which is connected to a driving device (7). The upper end of the mounting bracket (6) is provided with a locking port (8). The locking component includes a fixed base (1), a first transmission component (2) and a second transmission component (3) rotatably connected to the fixed base (1). The overlapping part of the first transmission component (2), the second transmission component (3) and the crank rod is provided with a through hole. A pin (4) passes through the through hole. The pin (4) allows the first transmission component (2), the second transmission component (3) and the crank rod to rotate around its axial direction. One end of the second transmission component (3) is connected to a locking component (5). The locking component (5) can move up and down in the locking port (8). The crank rod includes a left curved rod, a right curved rod (92) and a connecting rod (93). The left curved rod is connected to the right curved rod (92) through the connecting rod (93). The crank rod enables several locking components (5) to lock or unlock synchronously.

2. The link lock mechanism according to claim 1, characterized by The bends of both the left and right curved rods (92) are set upwards.

3. The linkage locking mechanism according to claim 1, characterized in that, The drive device (7) is connected to the left bending rod or the right bending rod (92).

4. The link lock mechanism according to claim 1, characterized by The locking member (5) includes a locking part (51), a limiting part (52), and a transmission part (53) connected sequentially from top to bottom.

5. The link lock mechanism according to claim 4, wherein The diameter of the limiting part (52) is greater than the diameter of the locking part (51) or the transmission part (53).

6. The linkage locking mechanism according to claim 4, characterized in that, A washer is fitted on the locking part (51).

7. The linkage locking mechanism according to claim 6, characterized in that, The diameter of the washer is not greater than the diameter of the limiting part (52).

8. The linkage locking mechanism according to claim 1, characterized in that, The drive device (7) is a hydraulic cylinder.

9. The link lock mechanism according to any one of claims 1 to 8, characterized in that, The first transmission member (2) includes two opposing first transmission plates (21) 1, and the second transmission member (3) is disposed between the two first transmission plates (21) 1.

10. The link lock mechanism according to claim 9, wherein The second transmission component (3) includes two opposing second transmission plates (31), and the crank is located between the two second transmission plates (31).