Anti-drop self-locking mechanism
The anti-drop self-locking mechanism, designed with cylinders and linkages, utilizes the dead point principle to achieve mechanical self-locking of the pallet, solving the problem of heavy pallets falling during transportation. It has a compact structure and low maintenance costs.
Patent Information
- Application Number
- CN202521790978.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-22
AI Technical Summary
In existing technologies, it is difficult to effectively prevent heavy pallets from falling during transportation, especially in the event of cylinder failure or air shortage, requiring complex mechanical structures to ensure safety and load-bearing capacity.
Using cylinders and linkage mechanisms, and employing the dead point principle, an anti-drop self-locking mechanism is designed. The mechanical self-locking of the pallet is achieved by driving the linkage mechanism with a cylinder. The structure is compact and only requires a small cylinder to prevent heavy pallets from falling.
It reliably prevents pallets from falling even in the event of cylinder failure. It has a simple and compact structure, low maintenance costs, and is suitable for preventing heavy pallets from falling.
Smart Images
Figure CN224677161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an anti-fall mechanism, and in particular to an anti-fall self-locking mechanism. Background Technology
[0002] In the existing technology, during the manufacturing of battery boxes, conveyor belts are often used to transport workpieces and pallets. At the end of the conveyor line, a lifting position is usually set for the pallet to return to its original position. To prevent accidental drops, a mechanical mechanism is needed to lock it. Lightweight pallets can use anti-drop mechanisms such as cylinder clamping, while large and heavy pallets require special structures to ensure they can bear the weight. Summary of the Invention
[0003] According to an embodiment of the present invention, an anti-fall self-locking mechanism is provided, comprising: Mounting base; Cylinder mounting bracket, which is fixed on the mounting base; The cylinder has its fixed end hinged to a cylinder mounting base. The linkage mechanism is hinged to the mounting base, and one end of the linkage mechanism is hinged to the output end of the cylinder. The support block is hinged to the mounting base and to the other end of the linkage mechanism. When the cylinder extends, one end of the drive linkage rotates vertically upward until it contacts the mounting base to form a mechanical self-lock, and drives the support block to rotate vertically upward to support the external pallet; when the cylinder retracts, the support block rotates vertically downward through the linkage mechanism to release the pallet.
[0004] Furthermore, the linkage mechanism includes: The swing arm has one end hinged to the output end of the cylinder and the other end hinged to the support block. The connecting rod has one end hinged to the mounting base and the other end hinged to the center of the swing arm.
[0005] Furthermore, the swing arm is shaped like a V.
[0006] Furthermore, the support block is L-shaped, with the corner of the support block hinged to the other end of the swing arm, the opening of the support block connected to the pallet, one end of the support block hinged to the mounting base, and the other end of the support block supporting the pallet.
[0007] Furthermore, a support block is fixed to the other end of the supporting block.
[0008] Furthermore, both the connecting rod and the support block are hinged to the mounting base and the swing arm via pins.
[0009] Furthermore, the self-locking critical point is when the corners of the connecting rod and the supporting block are on the same straight line.
[0010] Furthermore, the output end of the cylinder is hinged to the connecting rod mechanism via an elbow joint.
[0011] According to the embodiments of this utility model, the anti-fall self-locking mechanism achieves pure safety self-locking through a cylinder and a linkage mechanism and by utilizing the dead point principle; only the driving force of a small cylinder is needed to prevent the heavy pallet from falling; the structure is compact, simple and ingenious, and the maintenance cost is low.
[0012] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description
[0013] Figure 1 This is an assembly diagram of the anti-fall self-locking mechanism according to an embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the self-locking state of the anti-fall self-locking mechanism according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the open state of the anti-fall self-locking mechanism according to an embodiment of the present utility model.
[0014] The attached diagram is labeled as follows: base 1, tray 2, anti-fall self-locking mechanism 3; Mounting base 31, cylinder fixing seat 32, cylinder 33, swing arm 34, connecting rod 35, support block 36, support block 37, pin shaft 38, toggle joint 39. Detailed Implementation
[0015] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.
[0016] First, combine Figures 1-4 The anti-fall self-locking mechanism 3 according to an embodiment of the present utility model is used to support the tray 2 and has a wide range of applications.
[0017] like Figure 1 The diagram shows the assembly of the anti-fall mechanism in this embodiment of the present invention. Four or more anti-fall mechanisms are installed on the external base 1. A tray 2 is slidably arranged on the base 1. When the tray 2 slides up and down to the top position, the anti-fall mechanism can reach a self-locking state, firmly holding the tray 2 to prevent it from falling. When the tray 2 needs to fall, the anti-fall mechanism is opened, allowing the tray 2 to fall smoothly.
[0018] like Figures 1-4 As shown, the anti-fall self-locking mechanism 3 of this utility model embodiment includes: a mounting base 31; a cylinder fixing seat 32; a cylinder 33; a connecting rod mechanism; and a support block 36.
[0019] Specifically, such as Figures 1-4 As shown, in this embodiment, the cylinder mounting base 32 is fixed on the mounting base 31. The mounting base 31 serves as the fixed base of the entire mechanism, providing a rigid support platform. The mounting base 31 is fixed on the external base 1. The fixed end of the cylinder 33 is hinged to the cylinder mounting base 32 to allow the cylinder 33 to swing. The cylinder 33 serves as a power source, outputting driving force through telescopic movement. The linkage mechanism is hinged to the mounting base 31, with one end of the linkage mechanism hinged to the output end of the cylinder 33. The support block 36 is hinged to the mounting base 31 and to the other end of the linkage mechanism. The linkage mechanism is used to transmit the driving force of the cylinder 33, converting the linear motion of the cylinder 33 into the rotational motion of the support block 36. When the cylinder 33 extends, it drives one end of the linkage mechanism to rotate vertically upward until it contacts the mounting base 31 to form a mechanical self-lock, and drives the support block 36 to rotate vertically upward to support the external tray 2. When the cylinder 33 retracts, it drives the support block 36 to rotate vertically downward through the linkage mechanism to release the tray 2. In this embodiment, the self-locking mechanism uses a cylinder 33 and a linkage mechanism. The cylinder 33 only provides power to make the linkage mechanism move. When the linkage mechanism moves past the dead point, the mechanism self-locks. At this time, the mechanism is in contact with the tray 2, and the linkages are interlocked. If the tray 2 falls, the entire mechanism will firmly hold the tray 2 to prevent it from falling. When the cylinder 33 extends to the center position, the mechanism uses the dead point principle to achieve pure mechanical self-locking. Even if the air supply is cut off or fails, it can still reliably prevent the tray 2 from slipping, thus achieving safe self-locking. Only the driving force of the small cylinder 33 is needed to prevent the heavy tray 2 from falling. The structure is compact, simple and exquisite, and the maintenance cost is low.
[0020] Furthermore, such as Figures 2-4 As shown, in this embodiment, the linkage mechanism includes: a swing arm 34, one end of which is hinged to the output end of the cylinder 33, and the other end of which is hinged to the support block 36; and a connecting rod 35, one end of which is hinged to the mounting base 31, and the other end of which is hinged to the center of the swing arm 34. In this embodiment, the connection point between the swing arm 34 and the connecting rod 35 is the fulcrum. Through the linkage between the swing arm 34 and the connecting rod 35 and the lever effect of the swing arm 34, the rotational movement of the support block 36 is driven. In this embodiment, the swing arm 34 is V-shaped.
[0021] Furthermore, such as Figures 2-4As shown, in this embodiment, the support block 36 is L-shaped. The corner of the support block 36 is hinged to the other end of the swing arm 34, and the opening of the support block 36 connects to the tray 2. One end of the support block 36 is hinged to the mounting base 31, and the other end of the support block 36 supports the tray 2. When the cylinder 33 drives the swing arm 34 to rotate, it causes the support block 36 to rotate around its corner. The L-shape can cooperate with the edge of the tray 2, forming horizontal limiting and gravity-directed support. In this embodiment, a support block 37 is fixed to the other end of the support block 36. In this embodiment, the self-locking critical point is when the corner of the connecting rod 35 and the support block 36 are on the same straight line.
[0022] Furthermore, such as Figures 2-4 As shown, in this embodiment, both the connecting rod 35 and the support block 36 are hinged to the mounting base and the swing arm 34 via the pin 38.
[0023] Furthermore, such as Figures 2-4 As shown, in this embodiment, the output end of cylinder 33 is hinged to the connecting rod mechanism via toggle joint 39.
[0024] like Figure 3 As shown, when tray 2 reaches the top, the anti-fall mechanism needs to switch from open to self-locking. Cylinder 33 extends with air supply, driving the swing arm 34 upwards via toggle joint 39. Simultaneously, under the rotation of connecting rod 35, the swing arm gradually aligns with the pins 38 at both ends of connecting rod 35 and the pin 38 at the corner of support block 36, reaching the self-locking critical point. Cylinder 33 continues to extend, and swing arm 34 contacts mounting base 31, reaching the self-locking point, thus completing the operation. If the gas supply is interrupted or the tray 2 slips, the support block 36 moves downward, causing the swing arm 34 to move upward. However, at this time, the swing arm 34 is already in mechanical contact with the mounting base 31 and cannot move upward, thus creating a self-locking effect.
[0025] like Figure 4 As shown, when the tray 2 needs to be lowered, the cylinder 33 retracts after being vented, causing the swing arm 34 to move downwards and disengage from the self-locking point. Under the combined action of the connecting rod 35 and the swing arm 34, the support block 36 moves diagonally downwards, the self-locking mechanism opens, and the work is completed. At this time, the tray 2 can be raised and lowered at will without interference.
[0026] Above, refer to Figures 1-4 This invention describes an anti-fall self-locking mechanism according to an embodiment of the present invention, which achieves pure safety self-locking through a cylinder and a linkage mechanism and by utilizing the dead point principle; it can prevent heavy pallets from falling with only the driving force of a small cylinder; it has a compact, simple and ingenious structure and low maintenance cost.
[0027] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.
[0028] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.
Claims
1. A self-locking mechanism to prevent falling, characterized in that, Include: Mounting base; A cylinder mounting base is fixed on the mounting base. A cylinder, wherein the fixed end of the cylinder is hinged to the cylinder mounting base; A linkage mechanism is hinged to the mounting base, and one end of the linkage mechanism is hinged to the output end of the cylinder; A support block, which is hinged to the mounting base and to the other end of the linkage mechanism; When the cylinder extends, it drives one end of the linkage mechanism to rotate vertically upward until it contacts the mounting base to form a mechanical self-lock, and drives the support block to rotate vertically upward to support the external tray; when the cylinder retracts, it drives the support block to rotate vertically downward through the linkage mechanism to release the tray.
2. The anti-fall self-locking mechanism as described in claim 1, characterized in that, The linkage mechanism includes: A swing arm, one end of which is hinged to the output end of the cylinder, and the other end of which is hinged to the support block; A connecting rod, one end of which is hinged to the mounting base, and the other end of which is hinged to the center of the swing arm.
3. The anti-fall self-locking mechanism as described in claim 2, characterized in that, The swing arm is in a V-shape.
4. The anti-fall self-locking mechanism as described in claim 2, characterized in that, The support block is L-shaped, with its corner hinged to the other end of the swing arm, its opening connected to the tray, one end of the support block hinged to the mounting base, and the other end of the support block supporting the tray.
5. The anti-fall self-locking mechanism as described in claim 4, characterized in that, The other end of the support block is fixed with a support block.
6. The anti-fall self-locking mechanism as described in claim 4, characterized in that, Both the connecting rod and the supporting block are hinged to the mounting base and the swing arm via pins.
7. The anti-fall self-locking mechanism as described in claim 4, characterized in that, The self-locking critical point is when the corners of the connecting rod and the supporting block are on the same straight line.
8. The anti-fall self-locking mechanism as described in claim 1, characterized in that, The output end of the cylinder is hinged to the connecting rod mechanism via an elbow joint.