Clamping device
By designing a clamping device that utilizes a four-bar linkage and clamping structure, the problems of time-consuming, labor-intensive, and dangerous oil drum handling, as well as high labor intensity, have been solved, enabling efficient, safe, and flexible handling of oil drums.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANKUANG ENERGY GRP CO LTD
- Filing Date
- 2025-03-14
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional methods of handling oil drums are time-consuming, labor-intensive, pose safety hazards, are physically demanding, and have significant limitations, making them unsuitable for handling different sizes and environments.
Design a clamping device including a lifting part, a four-bar linkage structure and a clamping structure. Through the hinge of the four-bar linkage structure and the rotatable connection of the clamp, in conjunction with a crane or forklift to provide upward pulling force, the oil drum can be clamped and lifted longitudinally or laterally.
It enables efficient and safe handling of oil drums, reduces manpower consumption, avoids safety hazards, and adapts to handling needs in different sizes and environments.
Smart Images
Figure CN224159834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of article clamping and handling technology, specifically to a clamping device. Background Technology
[0002] Oil drums, as common liquid storage containers, are widely used in industries such as petroleum, chemical, and food. In production workshops, the handling and movement of oil drums is a frequent operation. However, traditional oil drum handling methods have many drawbacks, mainly in the following aspects: 1. Difficult and inefficient handling: Oil drums are cylindrical in shape with smooth surfaces, lacking gripping points, making manual handling very inconvenient. A fully loaded oil drum can weigh up to 200 kg, usually requiring multiple people to work together to move it, which not only consumes a lot of manpower but also has low work efficiency, making it difficult to meet the needs of modern production. 2. Significant safety hazards: Manual handling of oil drums poses significant safety hazards. First, improper coordination among multiple people can easily cause the oil drum to slip or tip over, resulting in injury or oil leakage. Second, the weight of the oil drums can easily cause occupational injuries such as muscle strains or back sprains during handling. Furthermore, oil is usually flammable and explosive; collisions or friction during manual handling can easily lead to accidents. 3. High labor intensity: Manually handling oil drums requires a lot of physical strength, leading to high labor intensity, worker fatigue, and affecting work efficiency and safety. 4. Significant limitations: Traditional manual handling methods are limited by manpower and space, making it difficult to adapt to the handling needs of oil drums of different sizes and weights, and also unable to meet the handling requirements in special environments, such as narrow spaces or slopes. Therefore, existing technology needs further development. Utility Model Content
[0003] This utility model provides a clamping device, the specific implementation of which is as follows:
[0004] A clamping device includes a lifting part, a four-bar linkage, and two clamping structures. One end of the first link of the four-bar linkage is hinged to one end of the second link, the other end of the first link is hinged to one end of the third link, and the other end of the second link is hinged to one end of the fourth link. The middle parts of the third and fourth links are hinged to each other. The lifting part is located at the hinge point between the first and second links. The two clamping structures are rotatably connected to the other ends of the third and fourth links, respectively.
[0005] Furthermore, the clamping structure includes a rotating rod and arc-shaped clamping portions disposed at both ends of the rotating rod, and the rotating rod is rotatably connected to a third link or a fourth link.
[0006] Furthermore, the rotating rod is connected to the third or fourth connecting rod ball.
[0007] Furthermore, the arc-shaped clamping part is provided with an anti-slip layer.
[0008] Furthermore, the third link and the fourth link each include a connecting rod and a clamping arm. The connecting rods of the third link and the fourth link are hinged to each other. One end of the connecting rod is connected to the clamping arm, and the other end of the connecting rod is hinged to the other end of the first link or the other end of the second link.
[0009] Furthermore, the two clamping structures are rotatably connected to the clamping arms of the third link and the fourth link, respectively.
[0010] Furthermore, the included angle between the connecting rod and the clamping arm is 120-180°.
[0011] Furthermore, the clamping arm is provided with a handrail.
[0012] Furthermore, the lifting part is detachably disposed at the hinge joint between the first link and the second link.
[0013] Beneficial effects:
[0014] 1. The clamping structure of this clamping device can be adjusted at any angle, allowing the oil drum to be moved and placed longitudinally or laterally, thus avoiding the problems of time-consuming and laborious manual handling and potential safety hazards.
[0015] 2. The lifting unit, when used in conjunction with a crane or forklift, can provide an upward pulling force, which allows the four-bar linkage to form an inward clamping force, thus firmly holding the oil drum. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a clamping device according to the present invention;
[0017] Figure 2 This is a schematic diagram of the clamping structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the fourth link of this utility model.
[0019] The above figures include the following reference numerals:
[0020] 11. First link; 12. Second link; 13. Third link; 131. Connecting rod of the third link; 132. Clamping arm of the third link; 14. Fourth link; 141. Connecting rod of the fourth link; 142. Clamping arm of the fourth link; 2. Lifting part; 3. Clamping structure; 31. Rotating rod; 32. Arc-shaped clamping part; 4. Handrail; 5. Oil drum. Detailed Implementation
[0021] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples:
[0022] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.
[0023] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0024] According to an embodiment of this utility model, a clamping device is provided. Please refer to [link / reference]. Figures 1 to 3 ,like Figure 1 As shown, the device includes a lifting unit 2, a four-bar linkage structure, and two clamping structures 3. One end of the first link 11 of the four-bar linkage structure is hinged to one end of the second link 12, and the other end of the first link 11 is hinged to one end of the third link 13. The other end of the second link 12 is hinged to one end of the fourth link 14. The middle portions of the third link 13 and the fourth link 14 are hinged together. The lifting unit 2 is located at the hinge point between the first link 11 and the second link 12. The two clamping structures 3 are rotatably connected to the other ends of the third link 13 and the fourth link 14, respectively. The clamping structures 3 of this clamping device can be adjusted at any angle, allowing the oil drum 5 to be moved longitudinally or laterally, thus avoiding the time-consuming, labor-intensive, and safety-hazardous problems associated with manual handling. The lifting unit 2, in conjunction with a crane or forklift, can provide an upward pulling force, enabling the four-bar linkage structure to form an inward clamping force, thus firmly clamping the oil drum 5.
[0025] like Figure 2 As shown, the clamping structure 3 includes a rotating rod 31 and arc-shaped clamping portions 32 disposed at both ends of the rotating rod 31. The rotating rod 31 is rotatably connected to the third connecting rod 13 or the fourth connecting rod 14. The rotating rod 31 can rotate to adjust the angle, so that the arc-shaped clamping portions 32 adapt to the oil drum 5, and can clamp the oil drum 5 longitudinally or laterally. Specifically, the rotating rod 31 is ball-connected to the third connecting rod 13 or the fourth connecting rod 14. The rotating rod 31 can rotate freely in multiple directions to adapt to complex angle changes.
[0026] The arc-shaped clamping part 32 is provided with an anti-slip layer. On the one hand, the anti-slip layer can increase the friction between the arc-shaped clamping part 32 and the oil drum 5, which is beneficial for the handling of the oil drum 5. On the other hand, it can protect the paint or shape of the oil drum 5 surface, as excessive clamping force will damage the paint or shape of the oil drum 5 surface. The anti-slip layer can be a leather pad.
[0027] like Figure 3 As shown, the third link 13 and the fourth link 14 each include a connecting rod and a clamping arm. The connecting rod 131 of the third link and the connecting rod 141 of the fourth link are hinged to each other. One end of the connecting rod is connected to the clamping arm, and the other end of the connecting rod is hinged to the other end of the first link 11 or the other end of the second link 12. The two clamping structures 3 are rotatably connected to the clamping arm 132 of the third link and the clamping arm 142 of the fourth link, respectively. Using the four-bar linkage, an upward pulling force is provided by a crane or forklift. The four-bar linkage and the clamping structure 3 form an inward clamping force to clamp the oil drum 5, realizing the clamping and lifting of the oil drum 5. The first link 11, the second link 12, and the connecting rods 131 of the third link and 141 of the fourth link can form a deformable quadrilateral. By deforming, clamping force is provided or clamping is released. At the same time, the clamping structure 3 is located on the clamping arm and clamps the oil drum 5 under the drive of the clamping arm.
[0028] The included angle between the connecting rod and the clamping arm is 120-180°. In order to further enable the clamping structure 3 to fit snugly against the oil drum 5, the included angle between the connecting rod and the clamping arm is set to 120-180°.
[0029] A handle 4 is provided on the clamping arm. The handle 4 is provided on the side of the clamping arm to stabilize the clamping device and quickly lock the position of the oil drum 5.
[0030] The lifting part 2 is detachably mounted at the hinge joint between the first connecting rod 11 and the second connecting rod 12. The lifting part 2 is a lifting head, which can be replaced according to the crane or forklift to adapt to different working scenarios.
[0031] The hinge points between the four-bar linkages are bolted through holes to form a four-bar linkage structure, providing upward pulling force. The clamping structure 3 is connected to the four-bar linkage structure to form an inward clamping force to achieve clamping; the four-bar linkage structure can be quickly released by releasing the clamping force by releasing downward.
[0032] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.
Claims
1. A clamping device, characterized in that, The device includes a lifting unit, a four-bar linkage, and two clamping structures. One end of the first link of the four-bar linkage is hinged to one end of the second link, the other end of the first link is hinged to one end of the third link, and the other end of the second link is hinged to one end of the fourth link. The middle portions of the third and fourth links are hinged together. The lifting unit is located at the hinge point between the first and second links. The two clamping structures are rotatably connected to the other ends of the third and fourth links, respectively. The clamping structure includes a rotating rod and arc-shaped clamping portions disposed at both ends of the rotating rod, and the rotating rod is rotatably connected to a third link or a fourth link; The rotating rod is connected to the third or fourth link ball.
2. The clamping device according to claim 1, characterized in that, The arc-shaped clamping part is provided with an anti-slip layer.
3. The clamping device according to claim 1, characterized in that, The third and fourth links each include a connecting rod and a clamping arm. The connecting rods of the third and fourth links are hinged to each other. One end of the connecting rod is connected to the clamping arm, and the other end of the connecting rod is hinged to the other end of the first or second link.
4. The clamping device according to claim 3, characterized in that, The two clamping structures are rotatably connected to the clamping arms of the third link and the fourth link, respectively.
5. The clamping device according to claim 3, characterized in that, The included angle between the connecting rod and the clamping arm is 120-180°.
6. The clamping device according to claim 3, characterized in that, The clamping arm is equipped with a handrail.
7. The clamping device according to claim 1, characterized in that, The lifting part is detachably installed at the hinge joint between the first link and the second link.