Concrete slope protection plate hoisting device

Abstract

The utility model discloses a concrete slope protection plate hoisting device, and relates to a hoisting device. The slope protection plate aims to solve the problem that when an existing slope protection plate is laid, a cushion layer on a slope surface is disturbed, and then the laying quality is affected badly. The slope protection plate hoisting device is flexible to operate, and the included angle between the hoisting arm and the first pi-shaped clamping arm can be adjusted according to the slope ratio of a construction site, so that the slope protection plate hoisting device is applicable to hoisting construction of slope protection plates with different slope ratios; and meanwhile, in the hoisting process, the included angle between the lower surface of the concrete slope protection plate and the horizontal plane is always the same as the slope angle beta, so that the lower surface of the concrete slope protection plate can be in direct contact with the cushion layer, the cushion layer on the slope surface cannot be disturbed, the laying quality is improved, and the laid concrete slope protection plate is more stable. The utility model belongs to the technical field of concrete slope protection plate hoisting construction.

Description

Technical Field

[0001] This utility model relates to a hoisting device, specifically a hoisting device for concrete slope protection slabs, and belongs to the field of concrete slope protection slab hoisting construction technology. Background Technology

[0002] Precast concrete slope protection slabs have unique advantages: low production cost, fast construction speed, and convenient maintenance and repair. Therefore, they have been widely promoted and applied in bank protection projects.

[0003] Currently, slope protection slabs are typically installed by horizontally hoisting them to the designated location using scissor lifts or vertically hoisting them by binding them with steel cables. However, due to the angle between the slope and the horizontal plane, whether hoisted horizontally or vertically, one edge of the slope protection slab always lands on the slope's subgrade first, and then the lower surface of the slab gradually comes into contact with the slope. This process inevitably disturbs the subgrade on the slope, causing the subgrade material at the contact point between the slab's edge and the subgrade to be squeezed elsewhere, resulting in localized loss of subgrade material at the contact point. This negatively impacts the installation quality, and after long-term service, the slope protection slabs are prone to shaking, hollowing, and misalignment.

[0004] In summary, how to propose a hoisting device to address the aforementioned technical problems has become a pressing issue for those skilled in the art. Utility Model Content

[0005] This utility model addresses the shortcomings of the prior art by providing a concrete slope protection slab hoisting device.

[0006] The technical solution of this utility model is: a concrete slope protection slab hoisting device, including a first π-shaped clamping arm and a second π-shaped clamping arm.

[0007] The first π-shaped clamping arm includes a first clamping jaw, a support tube, and two first transmission arms.

[0008] The support tube is arranged between the two first transmission arms, and both ends of the support tube are fixedly connected to the first transmission arms. The first transmission arms are hinged to the second π-shaped clamping arms. Both first transmission arms are fixedly connected to the first clamping jaws perpendicularly. Both ends of the first clamping jaws are fixedly connected to the first lifting rings.

[0009] Furthermore, it also includes a boom, an angle adjustment unit, and three locking seats.

[0010] One end of the boom is hinged to the support pipe, and the other end of the boom is fixed to a second lifting ring. The sling passes through the second lifting ring and two first lifting rings in sequence and is fixed to two points on the second π-shaped clamp arm. The fixed point between the sling and the second π-shaped clamp arm is lower than the hinge point between the first transmission arm and the second π-shaped clamp arm.

[0011] The angle adjustment unit includes a lead screw, a bearing housing, a lead screw nut, and a transmission rod.

[0012] The bearing housing is mounted on the first gripper. The two ends of the transmission screw are rotatably connected to the bearing housing and the support tube, respectively. A screw nut is installed on the transmission screw, and the two ends of the transmission rod are hinged to the screw nut and the boom, respectively.

[0013] Two locking seats are installed on the outer surface of the first gripper, and one locking seat is installed on the second π-shaped gripper arm.

[0014] The locking seat has a through hole, in which a locking screw is coaxially inserted. An adjusting nut is installed on the locking screw, and the adjusting nut is located above the locking seat. A plate is fixed to the locking screw, and the plate is located below the locking seat.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention offers flexible operation, allowing adjustment of the angle between the boom 300 and the first π-shaped clamping arm 100 according to the slope ratio at the construction site. This makes the invention suitable for hoisting slope protection slabs with varying slope ratios. Furthermore, during hoisting, the angle between the lower surface of the concrete slope protection slab 700 and the horizontal plane remains constant relative to the slope angle. β Because of the same principle, the lower surface of the concrete slope protection slab 700 can directly contact the subbase without disturbing the subbase on the slope, thereby improving the laying quality and making the laid concrete slope protection slab 700 more stable. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of this utility model;

[0018] Figure 2 This is the first axonometric view of the first π-shaped clamp arm 100 of this utility model;

[0019] Figure 3 This is the second axonometric view of the first π-shaped clamp arm 100 of this utility model;

[0020] Figure 4 This is an axonometric drawing of the second π-shaped clamp arm 200 of this utility model;

[0021] Figure 5 This is a schematic diagram of the hoisting of the concrete slope protection slab 700 according to this utility model.

[0022] In the diagram: 100, First π-shaped clamping arm; 110, First transmission arm; 120, First gripper; 121, First lifting ring; 130, Support tube; 200, Second π-shaped clamping arm; 210, Second transmission arm; 220, Second gripper; 300, Lifting arm; 310, Second lifting ring; 400, Angle adjustment unit; 410, Transmission screw; 411, Crank handle; 420, Bearing seat; 430, Screw nut; 440, Transmission rod; 510, Locking seat; 520, Locking screw; 521, Adjusting nut; 522, Insert plate; 600, Lifting sling; 700, Concrete slope protection plate. Detailed Implementation

[0023] To make the invention's purpose, features, and advantages more apparent and understandable, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings in this embodiment.

[0024] Specific implementation method one: Combining Figures 1 to 4 This embodiment describes a concrete slope protection slab hoisting device, which includes a first π-shaped clamping arm 100 and a second π-shaped clamping arm 200.

[0025] The first π-shaped clamping arm 100 includes a first clamping jaw 120, a support tube 130, and two first transmission arms 110.

[0026] The support tube 130 is arranged between the two first transmission arms 110, and both ends of the support tube 130 are fixedly connected to the first transmission arms 110. The first transmission arms 110 are hinged to the second π-shaped clamping arm 200. Both first transmission arms 110 are perpendicularly fixedly connected to the first clamping jaw 120. Both ends of the first clamping jaw 120 are fixedly connected to the first lifting ring 121.

[0027] Furthermore, it also includes a boom 300, an angle adjustment unit 400, and three locking seats 510.

[0028] One end of the boom 300 is hinged to the support pipe 130, and the other end of the boom 300 is fixedly connected to the second lifting ring 310. The sling 600 passes through the second lifting ring 310 and the two first lifting rings 121 in sequence and is fixedly connected to two points on the second π-shaped clamp arm 200. The fixed connection point between the sling 600 and the second π-shaped clamp arm 200 is lower than the hinge point between the first transmission arm 110 and the second π-shaped clamp arm 200.

[0029] The angle adjustment unit 400 includes a transmission screw 410, a bearing housing 420, a screw nut 430, and a transmission rod 440.

[0030] The bearing housing 420 is mounted on the first gripper 120. The two ends of the transmission screw 410 are rotatably connected to the bearing housing 420 and the support tube 130, respectively. A screw nut 430 is mounted on the transmission screw 410. The two ends of the transmission rod 440 are hinged to the screw nut 430 and the boom 300, respectively. With this configuration, when the transmission screw 410 is turned, the position of the screw nut 430 in the length direction of the transmission screw 410 changes. Then, through the transmission rod 440, the angle between the boom 300 and the first π-shaped gripper 100 changes.

[0031] Two locking seats 510 are installed on the outer surface of the first gripper 120, and one locking seat 510 is installed on the second π-shaped gripper arm 200.

[0032] The locking seat 510 has a through hole, and a locking screw 520 is coaxially inserted into the through hole. An adjusting nut 521 is installed on the locking screw 520 and is located above the locking seat 510. A plate 522 is fixedly connected to the locking screw 520 and is located below the locking seat 510.

[0033] Specific Implementation Method Two: Combining Figures 1 to 4 This embodiment describes a second π-shaped clamping arm 200, which includes a second clamping jaw 220 and two second transmission arms 210.

[0034] The first transmission arm 110 is hinged to the second transmission arm 210, and both second transmission arms 210 are perpendicularly fixed to the second gripper 220. A locking seat 510 is installed on one end face of the second gripper 220.

[0035] After passing through the second lifting ring 310 and the two first lifting rings 121 in sequence, the sling 600 is fixed to both ends of the second gripper 220, and the fixed connection point between the sling 600 and the second gripper 220 is lower than the hinge point between the first transmission arm 110 and the second transmission arm 210.

[0036] The other components and connections are the same as in Specific Implementation Method 1.

[0037] Specific implementation method three: Combining Figures 1 to 4 In this embodiment, the end of the locking screw 520 is integrally provided with a hexagonal prism-shaped screwing part. With this configuration, the worker can rotate the locking screw 520 by cooperating with the screwing part using a wrench, which in turn facilitates the rotation of the insert plate 522.

[0038] Furthermore, a crank handle 411 is installed at the end of the transmission screw 410. Furthermore, the crank handle 411 is detachably connected to the transmission screw 410. This arrangement facilitates the turning of the transmission screw 410.

[0039] The other components and connections are the same as in specific implementation method one or two.

[0040] Specific implementation method four: Combination Figures 1 to 4 In this embodiment, both the first clamp 120 and the second clamp 220 are angle steel. Preferably, when the present invention clamps the two sides of the concrete slope protection slab 700 in the length direction for hoisting, the length of the first clamp 120 and the second clamp 220 is greater than the length of the concrete slope protection slab 700; when the present invention clamps the two sides of the concrete slope protection slab 700 in the width direction for hoisting, the length of the first clamp 120 and the second clamp 220 is greater than the width of the concrete slope protection slab 700.

[0041] Furthermore, the first transmission arm 110, the support tube 130, and the second transmission arm 210 are all hollow square tubes.

[0042] The other components and connections are the same as those in specific implementation methods one, two, or three.

[0043] Working principle

[0044] Combination Figures 1 to 5 The working principle of this utility model will be explained by the operation steps of hoisting the concrete slope protection slab 700:

[0045] Step 1: Adjust the angle between the boom 300 and the first π-shaped clamp 100 according to the slope ratio of the construction site. For example, if the slope ratio of the construction site is 1:1.5, the corresponding slope angle is... β Therefore, the included angle between the boom 300 and the first π-shaped clamping arm 100 is adjusted to 90°. β .

[0046] Step 2: Place the present invention flat on the concrete slope protection board 700, ensuring that the first clamp 120 and the second clamp 220 are both abutting against the concrete slope protection board 700.

[0047] Step 3: Tighten the locking screw 520 to rotate the insert plate 522 to below the concrete slope protection slab 700.

[0048] Step 4: Connect the sling 600 to the lifting equipment (such as a truck crane). When the lifting equipment lifts the concrete slope protection slab 700, as the sling 600 tightens upwards, it passes sequentially through the second lifting ring 310 on the boom 300 and the first lifting ring 121 at both ends of the first clamp 120 before being fixed to both ends of the second clamp 220. Therefore, under the guidance of the second lifting ring 310 and the first lifting ring 121, the sling 300 transmits the tightening force to the second clamp 220. Since the second π-shaped clamp arm 200 is hinged to the first π-shaped clamp arm 100, the second π-shaped clamp arm 200 can rotate relative to the hinge point, thereby clamping the concrete slope protection slab 700. After the concrete slope protection slab 700 is lifted, under the action of gravity, the boom 300 becomes perpendicular to the horizontal plane during the lifting process, causing the angle between the lower surface of the concrete slope protection slab 700 and the horizontal plane to become a slope angle. β .

[0049] Step 5: Once the concrete slope protection slab 700 is hoisted to the predetermined position on the slope, it can be lowered. During the hoisting process, the angle between the lower surface of the concrete slope protection slab 700 and the horizontal plane remains constant with the slope angle. β Similarly, the lower surface of the 700mm concrete slope protection slab can directly contact the subbase without disturbing the subbase on the slope.

[0050] Step 6: Tighten the locking screw 520 again to disengage the insert plate 522 from below the concrete slope protection slab 700; at the same time, move the second π-shaped clamping arm 200 to release the concrete slope protection slab 700 from the first π-shaped clamping arm 100, and lift the utility model with the hoisting equipment to continue hoisting the next concrete slope protection slab 700.

[0051] The present invention has been disclosed above with reference to preferred embodiments, but it is not intended to limit the present invention. Any simple modifications, equivalent changes and alterations made by those skilled in the art to the above embodiments without departing from the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A concrete slope protection slab hoisting device, comprising a first π-shaped clamping arm (100) and a second π-shaped clamping arm (200); The first π-shaped clamping arm (100) includes a first clamping jaw (120), a support tube (130), and two first transmission arms (110). The support tube (130) is arranged between the two first transmission arms (110), and both ends of the support tube (130) are fixedly connected to the first transmission arms (110). The first transmission arms (110) are hinged to the second π-shaped clamping arm (200). Both first transmission arms (110) are perpendicularly fixedly connected to the first clamping jaw (120). Both ends of the first clamping jaw (120) are fixedly connected to the first lifting ring (121). characterized in that It also includes a boom (300), an angle adjustment unit (400), and three locking seats (510); One end of the boom (300) is hinged to the support pipe (130), and the other end of the boom (300) is fixedly connected to a second lifting ring (310). The sling (600) passes through the second lifting ring (310) and two first lifting rings (121) in sequence and is fixedly connected to two points on the second π-shaped clamp arm (200). The fixed connection point between the sling (600) and the second π-shaped clamp arm (200) is lower than the hinge point between the first transmission arm (110) and the second π-shaped clamp arm (200). The angle adjustment unit (400) includes a transmission screw (410), a bearing seat (420), a screw nut (430), and a transmission rod (440). The bearing housing (420) is mounted on the first gripper (120), and the two ends of the transmission screw (410) are rotatably connected to the bearing housing (420) and the support tube (130) respectively. The transmission screw (410) is equipped with a screw nut (430), and the two ends of the transmission rod (440) are hinged to the screw nut (430) and the boom (300) respectively. Two locking seats (510) are installed on the outer surface of the first gripper (120), and one locking seat (510) is installed on the second π-shaped gripper (200). The locking seat (510) has a through hole, and a locking screw (520) is coaxially inserted into the through hole. An adjusting nut (521) is installed on the locking screw (520), and the adjusting nut (521) is arranged above the locking seat (510). A plug plate (522) is fixedly connected to the locking screw (520), and the plug plate (522) is arranged below the locking seat (510).

2. The concrete revetment sheet hoisting device according to claim 1, characterized by: The second π-shaped clamping arm (200) includes a second clamping jaw (220) and two second transmission arms (210). The first transmission arm (110) is hinged to the second transmission arm (210), and both second transmission arms (210) are perpendicularly fixed to the second gripper (220). A locking seat (510) is installed on one end face of the second gripper (220). After passing through the second lifting ring (310) and the two first lifting rings (121) in sequence, the sling (600) is fixed to both ends of the second clamp (220), and the fixed connection point between the sling (600) and the second clamp (220) is lower than the hinge point between the first drive arm (110) and the second drive arm (210).

3. A concrete revetment panel lifting device according to claim 2, wherein: The end of the locking screw (520) is integrally provided with a hexagonal prism-shaped screwing part.

4. A concrete revetment panel lifting device according to claim 3, wherein: A crank handle (411) is installed at the end of the transmission screw (410).

5. A concrete slope protection slab hoisting device according to claim 4, characterized in that: Both the first gripper (120) and the second gripper (220) are angle steel.

6. A concrete revetment panel lifting device according to claim 5, wherein: The first transmission arm (110), the support tube (130), and the second transmission arm (210) are all hollow square tubes.

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