A lifting fixture

Abstract

The present invention discloses a hoisting clamp, which relates to the field of logistics and transportation. The clamp is installed on a support frame and comprises a first clamp and a second clamp. The second clamp is rotatably connected to the first clamp, and a regulating component is arranged between the first clamp and the second clamp. A limiting component is arranged between the first clamp and the second clamp. The minimum angle between the first clamp and the second clamp is limited, so when the first clamp and the second clamp clamp clamp a drum, the limiting component can be adjusted so that the first clamp and the second clamp only contact the outer wall of the drum. Since the radius of the cover is slightly larger than the radius of the drum, the first clamp and the second clamp will abut against the cover to grab the drum. Even if the drum is made of cardboard or plastic, it is not easy to be damaged during the clamping process.

Description

Technical Field

[0001] The invention relates to the field of logistics and transportation, and in particular to a lifting fixture. Background Art

[0002] In logistics transportation, drums with lids are often used to load small objects or liquids, such as iron drums, paper tubes and plastic drums. The radius of the lid is slightly larger than the radius of the drum. In the process of transporting drums, lifting tools are often used, such as cranes, hooks, slings, etc. Some drums have their own lifting ears, and the hooks can be directly passed through the lifting ears, and then the hooks can be lifted by the crane to transport the drums to the designated location. However, many drums without lifting ears need to be clamped with clamps before being transported to the designated location.

[0003] For example, a drum clamp disclosed in a Chinese patent with announcement number CN205973659U includes a support frame and a base fixedly connected to the support frame, the support frame is connected to a connector, a first clamp and a second clamp are provided on the connector, and a cavity for accommodating a drum is formed between the first clamp and the second clamp.

[0004] There is a problem in the above-mentioned transportation method. When the clamp is clamped on the barrel, the force acting on the barrel is relatively large. If the barrel is made of paper or plastic, the clamp can easily clamp the barrel to the point of deformation or damage, resulting in the barrel being damaged. Summary of the invention

[0005] In view of the above problems, the object of the present invention is to provide a lifting fixture which is not easy to damage the barrel.

[0006] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0007] A lifting fixture is installed on a support frame, comprising a first clamping member and a second clamping member, wherein the second clamping member is rotatably connected to the first clamping member, and a regulating component is arranged between the first clamping member and the second clamping member, wherein the regulating component is used to control the angle between the first clamping member and the second clamping member;

[0008] A limiting assembly is provided between the first clamping member and the second clamping member, and the limiting assembly is used to limit a minimum angle between the first clamping member and the second clamping member.

[0009] By adopting the above technical solution, the minimum angle between the first clamping member and the second clamping member is limited. Therefore, when the first clamping member and the second clamping member are used to clamp the barrel, the first clamping member and the second clamping member can be adjusted to make the first clamping member and the second clamping member only contact the outer wall of the barrel. Since the radius of the cover is slightly larger than the radius of the barrel, the first clamping member and the second clamping member will abut against the cover to grasp the barrel. Even if the barrel is made of cardboard or plastic, it is not easy to be damaged during the clamping process.

[0010] Further: the clamping assembly includes a rotating piece, one end of the rotating piece is rotatably connected to the first clamping member, and the other end of the rotating piece is fixedly connected to the second clamping member;

[0011] The rotating piece is rotatably connected with a pressure strip, the pressure strip is rotatably connected with a movable bar, and the movable bar is slidably connected to the first clamping member;

[0012] The limiting assembly includes a limiting bolt, which is rotatably connected to the first clamping member and is used to limit the position of the movable bar on the first clamping member.

[0013] By adopting the above technical solution, when the pressure strip is pressed to approach the first clamping member, the movable bar will be pushed to slide on the first clamping member until it abuts against the limit bolt. When the staff continues to press the pressure strip, the pressure strip and the movable bar will form an obtuse angle at one end away from the first clamping member, and at the same time, the rotating plate will be pushed to rotate away from the end of the first clamping member, so that the first clamping member and the second clamping member are close to and clamp the barrel. Since the pressure strip and the movable bar form an obtuse angle at one end away from the first clamping member, the reaction force of the barrel on the pressure strip will make the pressure strip closer to the first clamping member, and the clamping will be more secure.

[0014] Furthermore: a first traction rope and a second traction rope are fixedly connected to the pressure strip, the first traction rope is fixedly connected to the support frame, the second traction rope passes through the first clamping member and is adjustably fixedly connected to the support frame, and the pressure strip and the first clamping member are located on the same vertical plane.

[0015] By adopting the above technical solution, when the force for lifting the barrel mainly acts on the second traction rope, the pressure strip is driven by the second traction member to approach the first clamping member so that the first clamping member and the second clamping member clamp the barrel. When the barrel is transported to a suitable position, the connection between the second traction seat and the support frame can be adjusted so that the force for lifting the barrel acts on the first traction rope, so that the movable end of the pressure strip is away from the first clamping member, so that the first clamping member and the second clamping member release the barrel.

[0016] Furthermore, two second traction ropes are passed through the pressure strip, and the two second traction ropes are both wrapped around the first clamping member. When the second traction ropes are tightened, the first clamping member is close to the pressure strip.

[0017] By adopting the above technical solution, the two traction ropes stably lift the clamp from both sides of the first clamping member, so that the force on both sides of the first clamping member is more uniform. Therefore, it is less likely to shake and tip over during the process of lifting the barrel, and it is more stable.

[0018] Furthermore: the parts of the two second traction ropes that penetrate into the pressure strip are integrally arranged, and the second traction ropes are slidably connected to the pressure strip.

[0019] By adopting the above technical solution, the second traction ropes acting on both sides of the first clamping member can be adjusted to each other, so that the forces acting on the first clamping member by the second traction ropes on both sides of the first clamping member are the same, so the drum can be lifted more stably.

[0020] Further: the first traction rope is fixedly connected with a connecting piece, and the connecting piece is threadedly connected to the supporting frame.

[0021] By adopting the above technical solution, the distance between the first traction rope and the support frame can be adjusted, so the staff can perform calibration at any time.

[0022] Further: a sliding rod is slidably connected to the support frame, the sliding rod is fixedly connected to the second traction rope, a first elastic member is fixedly connected between the sliding rod and the support frame, a plug hole is provided on the sliding rod, a latch is slidably connected to the support frame, and the latch is plugged into and matched with the plug hole.

[0023] By adopting the above technical solution, when the staff pulls out the pin to make the sliding rod slide on the support rod, the taut second traction rope relaxes, so that the gravity of the barrel acts on the first traction rope. The first elastic member makes it difficult for the sliding rod to completely slip off the support frame after the second traction rope is loosened, and at the same time provides a buffer for the sliding rod so that the sliding rod will not directly hit the support rod.

[0024] Further: a guide block is fixedly connected to the support frame, the sliding rod is slidably connected inside the guide block, the latch is slidably connected to the guide block, a second elastic member is fixedly connected to the guide block, and one end of the second elastic member away from the guide block is fixedly connected to the latch.

[0025] By adopting the above technical solution, the pin is still limited by the guide block and the second elastic member after being pulled out from the sliding rod. At the same time, the guide block has a guiding effect on the sliding rod. When the staff pushes the sliding rod until the plug hole is flush with the pin, the second elastic member will push the pin into the plug hole, making it convenient for the staff to reset the second traction rope.

[0026] Furthermore: the first clamping member and the second clamping member are both fixedly connected with a clip, and the clip is in an arc shape.

[0027] By adopting the above technical solution, the contact area between the first clamping member, the second clamping member and the barrel is increased, so that the force exerted by the first clamping member and the second clamping member on the barrel is more uniform and the barrel is not easily damaged.

[0028] Further: the first clamping member includes a first fixing rod and a first adjusting rod, and the first adjusting rod is adjustably arranged on the first fixing rod;

[0029] The first clamping member includes a second fixing rod and a second adjusting rod, and the second adjusting rod is adjustably arranged on the second fixing rod.

[0030] By adopting the above technical solution, the lengths of the first clamping member and the second clamping member can be adjusted, so the lifting clamp can be suitable for drums of different sizes.

[0031] In summary, the beneficial technical effects of the present invention include:

[0032] (1) By setting a limit assembly, the minimum angle between the first clamping member and the second clamping member is limited. Therefore, when the first clamping member and the second clamping member clamp the barrel, the limit assembly can be adjusted so that the first clamping member and the second clamping member only contact the outer wall of the barrel. Since the radius of the cover is slightly larger than the radius of the barrel, the first clamping member and the second clamping member will abut against the cover to grasp the barrel. Even if the barrel is made of cardboard or plastic, it is not easy to be damaged during the clamping process.

[0033] (2) A pressure strip, a rotating piece and a movable strip are provided. When the pressure strip is pressed to approach the first clamping member, the movable strip is pushed to slide on the first clamping member until it abuts against the limit bolt. When the staff continues to press the pressure strip, the pressure strip and the movable strip form an obtuse angle at one end away from the first clamping member, and at the same time, the rotating piece is pushed to rotate at one end away from the first clamping member, so that the first clamping member and the second clamping member are close to each other and clamp the barrel. Since the pressure strip and the movable strip form an obtuse angle at one end away from the first clamping member, the reaction force of the barrel on the pressure strip will make the pressure strip closer to the first clamping member, and the clamping will be more secure.

[0034] (3) By setting the first traction rope and the second traction rope, when the force for lifting the barrel mainly acts on the second traction rope, the pressure strip is driven by the second traction member to move closer to the first clamping member so that the first clamping member and the second clamping member clamp the barrel. When the barrel is transported to a suitable position, the connection between the second traction seat and the support frame can be adjusted so that the force for lifting the barrel acts on the first traction rope, so that the movable end of the pressure strip is away from the first clamping member, so that the first clamping member and the second clamping member release the barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is an overall schematic diagram of an embodiment of the present invention;

[0036] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0037] Figure 3 for Figure 1 A magnified schematic diagram of part B;

[0038] Figure 4 A partial schematic diagram showing the sliding rod and the plug hole of the present invention

[0039] Figure numerals: 1, support frame; 2, first clamping member; 3, second clamping member; 4, first fixing rod; 5, first adjusting rod; 6, second fixing rod; 7, second adjusting rod; 8, barrel; 9, clamping piece; 10, rotating piece; 11, pressure strip; 12, movable bar; 13, limiting bolt; 14, first traction rope; 15, second traction rope; 16, connecting member; 17, sliding rod; 18, guide block; 19, first elastic member; 20, plug-in hole; 21, latch; 22, second elastic member. DETAILED DESCRIPTION

[0040] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] A lifting fixture, such as Figure 1 and Figure 2 As shown, it is installed on the support frame 1, including a first clamping member 2 and a second clamping member 3, the first clamping member 2 has a first fixing rod 4 and a first adjusting rod 5, the first adjusting rod 5 has a plurality of holes for fixing with the first fixing rod 4, and the first adjusting rod 5 is fixedly connected with the first fixing rod 4 by bolts. The second clamping member 3 includes a second fixing rod 6 and a second adjusting rod 7, the second adjusting rod 7 has a plurality of holes for fixing with the second fixing rod 6, and the second adjusting rod 7 is fixedly connected with the second fixing rod 6 by bolts. Therefore, the lengths of the first clamping member 2 and the second clamping member 3 can be adjusted, and the lifting fixture can be suitable for drums 8 of different sizes.

[0042] The first adjusting rod 5 and the second adjusting rod 7 are both fixedly connected with an arc-shaped clip 9, the curvature of the clip 9 fits the outer wall of the barrel 8, and the first clamping member 2 and the first clamping member 2 push the clip 9 close to the outer wall of the barrel 8, so that the clip 9 is pressed against the outer wall of the barrel 8.

[0043] Since the clamping piece 9 is also in the shape of an arc sheet that fits the outer wall of the barrel 8, the barrel 8 is not easily damaged during the process of clamping the barrel 8.

[0044] An adjusting component and a limiting component are provided between the first clamping member 2 and the second clamping member 3 . The adjusting component is used to adjust the angle between the first clamping member 2 and the second clamping member 3 . The limiting component is used to limit the minimum angle between the first clamping member 2 and the second clamping member 3 .

[0045] The regulating assembly includes a rotating piece 10, a pressure strip 11 and a movable strip 12. The sheet-shaped rotating piece 10 is rotatably connected to the first fixed rod 4. The rotating piece 10 is integrally arranged with the second fixed rod 6. One end of the rotating piece 10 away from the first fixed rod 4 is rotatably connected to the pressure strip 11. The pressure strip 11 is bent. The middle part of the pressure strip 11 is rotatably connected to one end of the movable strip 12. The other end of the movable strip 12 is slidably connected to the first clamping member 2. The limiting assembly includes a limiting bolt 13, which is threadedly connected to the first fixed rod 4.

[0046] When the pressure strip 11 is pressed to approach the first fixed rod 4, the movable bar 12 will be pushed to slide on the first fixed rod 4 until it abuts the limit bolt 13. When the staff continues to press the pressure strip 11, the pressure strip 11 and the movable bar 12 will form an obtuse angle at one end away from the first fixed rod 4, and at the same time, the rotating piece 10 will be pushed to rotate at one end away from the first fixed rod 4, so that the first adjusting rod 5 and the second adjusting rod 7 are close to and clamp the barrel 8. Since the pressure strip 11 and the movable bar 12 form an obtuse angle at one end away from the first fixed rod 4, the force of the barrel 8 acting on the pressure strip 11 will make the pressure strip 11 closer to the first fixed rod 4, and the clamping will be more secure.

[0047] like Figure 2 and Figure 3 As described, the pressure strip 11 is fixedly connected with a first traction rope 14 and a second traction rope 15. One end of the first traction rope 14 is fixedly connected to the pressure strip 11, and the other end is fixedly connected to a connecting piece 16. The connecting piece 16 is a screw, and the screw is threadedly connected to the support frame 1. The second traction rope 15 passes through the pressure strip 11, and the two ends of the second traction rope 15 are merged after wrapping around the first fixed rod 4 and fixed together. The second traction rope 15 is slidably connected to the first fixed rod 4. The second traction rope 15 can stably lift the clamp from both sides of the first fixed rod 4, so that the force on both sides of the first fixed rod 4 is more uniform, so it is not easy to shake and roll over during the process of lifting the barrel 8.

[0048] Since the two ends of the second traction rope 15 pass through the pressure strip 11, the second traction ropes 15 acting on both sides of the first fixed rod 4 can be adjusted to each other, so that the forces exerted by the second traction ropes 15 on both sides of the first fixed rod 4 on the first fixed rod 4 are the same, so the barrel 8 can be lifted more stably.

[0049] like Figure 3 and Figure 4 As shown, the part of the second traction rope 15 close to the support frame 1 is fixedly connected with a sliding rod 17, and the sliding rod 17 is slidably connected to the support frame 1. A rectangular block-shaped guide block 18 is fixedly connected to the support frame 1, and the sliding rod 17 is slidably connected in the guide block 18. A first elastic member 19 is arranged between the sliding rod 17 and the support frame 1. The first elastic member 19 can be a spring, and the two ends of the first elastic member 19 are respectively fixedly connected to the guide block 18 and the sliding rod 17. A circular hole 20 is provided through the sliding rod 17, and a plug 21 is slidably connected to the guide block 18. The plug 21 is plugged into the plug hole 20, and one end of the plug 21 away from the guide block 18 is fixedly connected to a second elastic member 22, and the other end of the second elastic member 22 is fixedly connected to the guide block 18. The second elastic member 22 can be a spring.

[0050] like Figure 2 and Figure 3 As shown, when the latch 21 is plugged into the plug hole 20, the force for lifting the barrel 8 mainly acts on the second traction rope 15, and the pressure strip 11 is driven by the second traction member to approach the first clamping member 2 so that the first clamping member 2 and the second clamping member 3 clamp the barrel 8. When the barrel 8 is transported to a suitable position, the latch 21 can be pulled out to allow the sliding rod 17 to slide on the support rod, and the taut second traction rope 15 is relaxed, so that the gravity of the barrel 8 acts on the first traction rope 14, so that the movable end of the pressure strip 11 is away from the first clamping member 2, so that the first clamping member 2 and the second clamping member 3 release the barrel 8.

[0051] The first elastic member 19 prevents the sliding rod 17 from completely slipping off the support frame 1 after the second traction rope 15 is loosened, and at the same time provides a buffer for the sliding rod 17 so that the sliding rod 17 does not directly hit the support rod. After the latch 21 is pulled out of the sliding rod 17, it is still limited by the guide block 18 and the second elastic member 22. At the same time, the guide block 18 has a guiding effect on the sliding rod 17. When the staff pushes the sliding rod 17 until the plug hole 20 is flush with the latch 21, the second elastic member 22 will push the latch 21 into the plug hole 20, making it easier for the staff to reset the second traction rope 15.

[0052] To summarize, since the minimum angle between the first clamping member 2 and the second clamping member 3 is limited, when the first clamping member 2 and the second clamping member 3 go to clamp the barrel 8, the limiting assembly can be adjusted so that the first clamping member 2 and the second clamping member 3 only contact the outer wall of the barrel 8. Since the radius of the cover is slightly larger than the radius of the barrel 8, the first clamping member 2 and the second clamping member 3 will abut against the cover to grasp the barrel 8. Even if the barrel 8 is made of cardboard or plastic, it is not easily damaged during the clamping process.

[0053] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A lifting fixture, mounted on a support frame (1), comprising a first clamping member (2) and a second clamping member (3), wherein the second clamping member (3) is rotatably connected to the first clamping member (2), characterized in that: A regulating component is provided between the first clamping member (2) and the second clamping member (3), and the regulating component is used to control the size of the angle between the first clamping member (2) and the second clamping member (3); A limit assembly is provided between the first clamping member (2) and the second clamping member (3), and the limit assembly is used to limit a minimum angle between the first clamping member (2) and the second clamping member (3); The regulating component comprises a rotating plate (10), one end of which is rotatably connected to the first clamping member (2), and the other end of which is fixedly connected to the second clamping member (3); a pressure strip (11) is rotatably connected to the rotating plate (10), a movable strip (12) is rotatably connected to the pressure strip (11), and the movable strip (12) is slidably connected to the first clamping member (2); the limiting component comprises a limiting bolt (13), which is rotatably connected to the first clamping member (2), and is used to limit the position of the movable strip (12) on the first clamping member (2); A first traction rope (14) and a second traction rope (15) are fixedly connected to the pressure strip (11); the first traction rope (14) is fixedly connected to the support frame (1); the second traction rope (15) passes through the first clamping member (2) and is adjustably fixedly connected to the support frame (1); the pressure strip (11) and the first clamping member (2) are located on the same vertical plane; Two second traction ropes (15) are passed through the pressure strip (11), and the two second traction ropes (15) are both wrapped around the first clamping member (2). When the second traction ropes (15) are tightened, the first clamping member (2) is close to the pressure strip (11); The first traction rope (14) is fixedly connected to a connecting piece (16), and the connecting piece (16) is threadedly connected to the support frame (1); a sliding rod (17) is slidably connected to the support frame (1), and the sliding rod (17) is fixedly connected to the second traction rope (15); a first elastic piece (19) is fixedly connected between the sliding rod (17) and the support frame (1); a plug hole (20) is provided on the sliding rod (17); a latch (21) is slidably connected to the support frame (1), and the latch (21) is plugged into and matched with the plug hole (20).

2. The lifting fixture according to claim 1, characterized in that: The two second traction cables (15) are integrally arranged at the parts that penetrate into the pressure strip (11), and the second traction cables (15) are slidably connected to the pressure strip (11).

3. The lifting fixture according to claim 1, characterized in that: A guide block (18) is fixedly connected to the support frame (1), the sliding rod (17) is slidably connected inside the guide block (18), the latch (21) is slidably connected to the guide block (18), a second elastic member (22) is fixedly connected to the guide block (18), and an end of the second elastic member (22) away from the guide block (18) is fixedly connected to the latch (21).

4. The lifting fixture according to claim 1, characterized in that: A clamping piece (9) is fixedly connected to both the first clamping piece (2) and the second clamping piece (3), and the clamping piece (9) is in an arc shape.

5. The lifting fixture according to claim 1, characterized in that: The first clamping member (2) comprises a first fixing rod (4) and a first adjusting rod (5), wherein the first adjusting rod (5) is adjustably arranged on the first fixing rod (4); The first clamping member (2) comprises a second fixing rod (6) and a second adjusting rod (7), and the second adjusting rod (7) is adjustably arranged on the second fixing rod (6).

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