Stone hoisting clamp for water transportation engineering

Abstract

The utility model relates to the technical field of lifting of lifting appliances, in particular to a stone lifting clamp for water transportation engineering. The device comprises a supporting frame and clamping rods symmetrically hinged to the supporting frame, and linkage mechanisms used for driving the clamping rods to rotate are arranged on the clamping rods. The linkage mechanism comprises a linkage rod hinged to the middle of the clamping rod, a lifting seat hinged to the linkage rod, a sling fixedly connected to the lifting seat and a displacement assembly used for driving the lifting seat and the supporting frame to be close to each other. The lower end of the clamping rod is provided with a chuck for preventing the stone from sliding; the clamping rods of the device can be automatically opened and closed, and workers do not need to manually separate the clamping rods; the device is suitable for stones with different thicknesses within a certain range.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a stone hoisting clamp for water transport engineering. Background Art

[0002] Stones are often needed in the revetment construction in water transport projects. These stones are made of surface rocks that are cut and processed after mining. They are geometric bodies with regular shapes. The difficulty in transporting large pieces of stone lies in their large size and weight, making them difficult to transport. In the prior art, most stones need to be hoisted with auxiliary slings. The existing slings are generally slings with hooks tied to iron chains. When these slings are in use, special people are required to hook and unhook for loading and unloading, which wastes a lot of time and requires a lot of manpower. It is not economical to use. At the same time, the existing slings are not safe enough when in use and are prone to scratching the stones.

[0003] Chinese patent CN202322383608.4 discloses "A stone lifting tool", publication number CN220642351U, the device includes a lifting fixture, a lifting belt and a lifting mechanism, the lifting fixture is connected to the lifting mechanism through the lifting belt, the lifting mechanism includes a lifting arm, a rotating arm, a lateral support arm, a plurality of force transmission arms and a plurality of hydraulic conveying devices, the force transmission arm is connected to the hydraulic conveying device, the hydraulic conveying device is connected to the lifting transport vehicle, the lifting arm is connected to the lifting belt, the lifting arm is connected to the rotating arm by a movable hinge, and the rotating arm is connected to the force transmission arm by a movable hinge. However, the device has some defects: the device cannot be opened and closed automatically, and the staff needs to separate the flat steel used to clamp the stone before it can be used. Utility Model Content

[0004] In order to solve the above problems of the prior art, the utility model provides a stone hoisting clamp for water transport engineering, wherein a clamping mechanism for clamping the stone can be automatically opened and closed, and a worker does not need to manually separate the clamping mechanism.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stone lifting clamp for water transport engineering, comprising a supporting frame, a clamping rod symmetrically hinged on the supporting frame, and a linkage mechanism for driving the rotation of the clamping rod; the linkage mechanism comprises a linkage rod hinged at the middle of the clamping rod, a hanging seat hinged to the linkage rod, a sling fixedly connected to the hanging seat, and a displacement component for driving the hanging seat and the supporting frame to approach each other; a chuck is provided at the lower end of the clamping rod to prevent the stone from sliding.

[0006] With the above structural design, after the staff connects the lifting device to the sling, the lifting device pulls the sling upward and then drives the hanging seat upward. The upward movement of the hanging seat causes the linkage rod to move and then the clamping rod to rotate inward, thereby clamping the stone. The operation is simple and there is no need to wrap the rope around the stone for lifting.

[0007] Preferably, the clamp includes a clamping plate hinged at the lower end of the clamping rod, a rubber pad arranged on the clamping plate, a fixing bolt is passed through the rubber pad, and a through hole matching the fixing bolt is formed on the clamping plate.

[0008] With the above structural design, when the rubber pad is severely worn, the rubber pad can be replaced, so that the splint can completely fit the outer wall of the stone.

[0009] Preferably, the displacement assembly includes an electric telescopic rod arranged between the hanging seat and the supporting frame, the hanging seat is fixedly connected to the first fixed rod, the upper end of the electric telescopic rod is fixedly connected to the first fixed rod, and the lower end of the electric telescopic rod is fixedly connected to the supporting frame.

[0010] With the above structural design, when the electric telescopic rod is contracted, it drives the first fixed rod to move, so that the first fixed rod and the support frame are close to each other, and then the hanging seat is close to the support frame, and then the linkage rod drives the clamping rod to rotate outward, so that the distance between the clamping rods is greater than the width of the stone, so that the clamping rods reach an open state.

[0011] Preferably, the displacement assembly comprises a second fixing rod fixedly connected to the suspension seat, and a cable wound around the second fixing rod, wherein the fixed end of the cable is fixedly connected to the support frame.

[0012] By adopting the above structural design, the cable is pulled to bring the second fixing rod and the supporting frame closer to each other, thereby bringing the hanger closer to the supporting frame, and then causing the linkage rod to drive the clamping rod to rotate outward, thereby making the distance between the clamping rods greater than the width of the stone, so that the clamping rods reach an open state.

[0013] Preferably, the second fixing rod is fixedly connected to an anti-slip ring, the anti-slip ring is rotatably connected to a roller, and the cable is wound around the roller.

[0014] The above structural design reduces the friction between the cable and the second fixing rod, prevents the cable from wearing the second fixing rod, and restricts the cable to prevent it from moving on the second fixing rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1) The clamping rod can be opened and closed automatically, and the staff does not need to manually separate the clamping rod.

[0017] 2) Within a certain range, it is suitable for stones of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present utility model;

[0021] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0022] Figure 5 For this utility model Figure 3 The enlarged structural diagram at B in the middle; DETAILED DESCRIPTION

[0023] Embodiment 1:

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The utility model provides a technical solution: a stone lifting fixture for water transport engineering, comprising a supporting frame 1, a clamping rod 2 symmetrically hinged on the supporting frame 1, and a linkage mechanism for driving the clamping rod 2 to rotate; the linkage mechanism comprises a linkage rod 31 hinged at the middle of the clamping rod 2, a hanging seat 32 hinged to the linkage rod 31, a sling 33 fixedly connected to the hanging seat 32, and a displacement component for driving the hanging seat 32 and the supporting frame 1 to approach each other; a chuck 4 for preventing the stone from sliding is provided at the lower end of the clamping rod 2.

[0025] The support frame 1 is a rectangular frame, and a cross-shaped inner support is fixedly connected to the support frame 1. Four groups of clamping rods 2 are arranged symmetrically on the support frame 1. The clamping rods 2 are fixedly connected to the support rods to increase the stability of the structure of the device; the upper end of the sling 33 is fixedly connected to the lifting ring to connect the hook of the lifting device.

[0026] The clamping head 4 includes a clamping plate 41 hinged at the lower end of the clamping rod 2 , and a rubber pad 42 arranged on the clamping plate 41 . A fixing bolt 43 is passed through the rubber pad 42 . A through hole matching the fixing bolt 43 is formed on the clamping plate 41 .

[0027] The displacement assembly includes an electric telescopic rod 6 disposed between the hanging seat 32 and the support frame 1, the hanging seat 32 is fixedly connected to a first fixed rod 61, the upper end of the electric telescopic rod 6 is fixedly connected to the first fixed rod 61, and the lower end of the electric telescopic rod 6 is fixedly connected to the support frame 1. The support frame 1 is fixedly connected to a limit frame 5, and the hanging seat 32 is slidably disposed in the limit frame 5; the electric telescopic rod 6 does not have a self-locking function, and when the electric telescopic rod 6 is powered off, the telescopic rod of the electric telescopic rod 6 can be pulled, and no resistance is provided when the hanging seat 32 moves upward.

[0028] When the device is in use, when the clamping rod 2 needs to be opened, the electric telescopic rod 6 is started to retract, so that the first fixed rod 61 and the supporting frame 1 are close to each other, and then the hanging seat 32 is close to the supporting frame 1, and then the linkage rod 31 drives the clamping rod 2 to rotate outward, so that the distance between the clamping rods 2 is greater than the width of the stone, so that the clamping rod is opened.

[0029] When it is necessary to clamp the stone, the staff operates the lifting device to place the device on the stone, closes the electric telescopic rod 6, and the linkage rod 31 and the clamping rod 2 move downward under the action of gravity. The chuck 4 fits the outer wall of the stone. The lifting device pulls the sling 33 to continue to move upward and then drives the hanging seat 32 to move upward. The upward movement of the hanging seat 32 causes the linkage rod 31 to move and then causes the clamping rod 2 to further rotate inward, thereby clamping the stone and lifting the stone.

[0030] Embodiment 2:

[0031] like Figure 3 As shown, Example 2 is modified relative to Example 1, and the displacement assembly includes a second fixing rod 72 fixedly connected to the suspension seat 32, and a cable 71 wound around the second fixing rod 72, and the fixed end of the cable 71 is fixedly connected to the support frame 1.

[0032] The second fixed rod 72 is fixedly connected to an anti-slip ring 81, and the anti-slip ring 81 is rotatably connected to a roller 82. The cable 71 is wound around the roller 82, and both ends of the roller 82 are smooth spherical structures. The frame of the support frame 1 is fixedly connected to a movable pulley 83, and the cable 71 is wound around the fixed pulley 83. A positioning seat 84 is fixedly connected to the support rod so as to bind the free end of the cable 71 to the fixed seat. Other places are in accordance with Example 1.

[0033] When the device is in use, when the clamping rod 2 needs to be opened, the cable 71 is pulled to make the second fixing rod 72 and the supporting frame 1 approach each other, thereby making the hanging seat 32 approach the supporting frame 1, and then the linkage rod 31 drives the clamping rod 2 to rotate outward, thereby making the distance between the clamping rods 2 greater than the width of the stone, so that the clamping rod is opened, and finally the free end of the cable 71 is tied to the positioning seat 84.

[0034] When it is necessary to clamp the stone, the staff operates the lifting device to place the device on the stone, unties the cable 71 from the positioning seat 84, and the linkage rod 31 and the clamping rod 2 move downward under the action of gravity. The chuck 4 fits against the outer wall of the stone. The lifting device pulls the cable 33 to continue to move upward and then drives the hanging seat 32 to move upward. The upward movement of the hanging seat 32 causes the linkage rod 31 to move and then causes the clamping rod 2 to further rotate inward, thereby clamping the stone and lifting the stone.

[0035] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0036] The present invention is described above with reference to the preferred embodiments, but the protection scope of the present invention is not limited thereto, and all technical solutions falling within the scope of the claims are within the protection scope of the present invention. Various improvements may be made to the present invention and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A stone lifting fixture for water transport engineering, comprising a support frame (1), a clamping rod (2) symmetrically hinged to the support frame (1), Features: The clamping rod (2) is provided with a linkage mechanism for driving the clamping rod (2) to rotate; the linkage mechanism comprises a linkage rod (31) hinged at the middle of the clamping rod (2), a suspension seat (32) hinged to the linkage rod (31), a sling (33) fixedly connected to the suspension seat (32), and a displacement assembly for driving the suspension seat (32) and the supporting frame (1) to move closer to each other; a clamp (4) for preventing the stone from sliding is provided at the lower end of the clamping rod (2).

2. A stone lifting fixture for water transport engineering according to claim 1, Features: The clamping head (4) comprises a clamping plate (41) hinged at the lower end of the clamping rod (2), a rubber pad (42) arranged on the clamping plate (41), a fixing bolt (43) passing through the rubber pad (42), and a through hole matching the fixing bolt (43) is provided on the clamping plate (41).

3. A stone lifting fixture for water transport engineering according to claim 1, Features: The displacement assembly comprises an electric telescopic rod (6) arranged between a hanging seat (32) and a supporting frame (1); a first fixing rod (61) is fixedly connected to the hanging seat (32); an upper end of the electric telescopic rod (6) is fixedly connected to the first fixing rod (61); and a lower end of the electric telescopic rod (6) is fixedly connected to the supporting frame (1).

4. A stone lifting fixture for water transport engineering according to claim 1, Features: The displacement assembly comprises a second fixing rod (72) fixedly connected to the suspension seat (32), and a cable (71) wound around the second fixing rod (72), wherein the fixed end of the cable (71) is fixedly connected to the support frame (1).

5. A stone lifting fixture for water transport engineering according to claim 4, Features: The second fixing rod (72) is fixedly connected to an anti-slip ring (81), the anti-slip ring (81) is rotatably connected to a roller (82), and the pull cable (71) is wound around the roller (82).

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