Concrete precast slab clamping lifting appliance

Abstract

The invention discloses a concrete precast slab clamping lifting appliance, and relates to a clamping lifting appliance. The invention aims to solve the problem that when the slope surface of the channel is paved, a concrete precast slab damages a sand cushion layer on the slope surface, so that the paving quality of the concrete precast slab is influenced. The concrete precast slab laying device is simple in structure and convenient to operate, and on the premise that the laying quality of a concrete precast slab is guaranteed, laying efficiency can be improved; when the concrete prefabricated slab is hoisted, the hoisting device and the concrete prefabricated slab form an included angle with the ground together, damage to a slope surface sand cushion layer when the concrete prefabricated slab falls to the ground is reduced, the hoisting device is more suitable for hoisting and laying requirements of the slope surface, and the concrete prefabricated slab is more stable and safer during long-term service. The invention belongs to the technical field of channel construction.

Description

Technical Field

[0001] The invention relates to a clamping hanger, in particular to a clamping hanger for a prefabricated concrete plate, and belongs to the technical field of channel construction. Background Art

[0002] With the development and construction of irrigation areas by the country, the transformation of modern irrigation areas is in full swing. In order to facilitate the later operation and maintenance of water diversion channels, precast concrete panels are mostly used as channel protection. At present, when lifting and laying precast concrete panels, scissor-type clamps are usually used to lift the precast concrete panels to the designated position. During the lifting process, the precast concrete panels always remain parallel to the ground.

[0003] However, when the slope of the channel is being paved, one side of the concrete precast slab will fall to the ground first during the falling process, and then the entire slab surface can be completely stable; this situation will cause the sand cushion layer on the slope to become concave and uneven because one side falls to the ground first, which will affect the laying quality of the concrete precast slab on the slope.

[0004] In summary, how to propose a new clamping sling to address the above technical issues has become an urgent problem to be solved by technicians in this field. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a concrete precast slab clamping hanger.

[0006] The technical solution of the present invention is: a concrete precast plate clamping hanger, comprising a first clamping arm, a second clamping arm and a sling.

[0007] The second clamping arm comprises a second clamping claw, a second guide rod, a second guide wheel, a force transmission rod, two second connecting plates, two support rods and two pin shafts.

[0008] The two second connecting plates are respectively arranged at two ends of the second clamping jaw, and one end of the second connecting plate is vertically fixed to the second clamping jaw.

[0009] The second guide rod is arranged at the other end of the second connecting plate, the second guide rod passes through the two second connecting plates, and the second guide rod is fixedly connected to the second connecting plates.

[0010] The two pins are respectively arranged at two ends of the second guide rod, and the outer circumferential surface of the pin is fixedly connected to the outer circumferential surface of the second guide rod, and the second guide wheel is rotatably connected to the second guide rod.

[0011] The force transmission rod is arranged in parallel with the second guide rod, the two ends of the two support rods are respectively fixed to the force transmission rod and the second guide rod, and an angle β exists between the support rod and the second connecting plate.

[0012] The first clamping arm comprises a first clamping claw, a first guide rod, a first guide wheel and two first connecting plates.

[0013] The first guide rod is arranged between the two first connecting plates, and both ends of the first guide rod are fixedly connected to the first connecting plates, and the first guide wheel is rotatably connected to the first guide rod.

[0014] The two first connecting plates are respectively arranged at two ends of the first clamping jaw, one end of the first connecting plate is vertically fixed to the first clamping jaw, and the other end of the first connecting plate is hinged to the pin shaft.

[0015] The sling passes through the first guide wheel and the second guide rod in sequence and is fixedly connected with the force transmission rod.

[0016] Compared with the prior art, the present invention has the following effects:

[0017] The present invention has a simple structure and is easy to operate. It is beneficial to improve the efficiency of laying while ensuring the laying quality of the precast concrete panel 400. When the precast concrete panel 400 is hoisted, the present invention and the precast concrete panel 400 form an angle with the ground, which reduces the damage to the sand cushion layer on the slope when the precast concrete panel falls to the ground. It is more suitable for the lifting and laying needs of the slope, making the precast concrete panel 400 more stable and safer during long-term service. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an axonometric view of the present invention;

[0019] Figure 2 is an axonometric view of the first clamp arm 100 of the present invention;

[0020] Figure 3 is an axonometric view of the second clamping arm 200 of the present invention;

[0021] Figure 4 Schematic diagram of clamping a precast concrete panel 400 according to the present invention.

[0022] In the figure: 100, first clamping arm; 110, first clamping jaw; 120, first connecting plate; 130, first guide rod; 131, first guide wheel; 200, second clamping arm; 210, second clamping jaw; 220, second connecting plate; 230, second guide rod; 231, second guide wheel; 232, pin shaft; 240, support rod; 250, force transmission rod; 300, sling; 400, precast concrete slab. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] Specific implementation method 1: Combination Figures 1 to 3 The present embodiment is described. A concrete precast panel clamping and hanging device of the present embodiment includes a first clamping arm 100 , a second clamping arm 200 and a sling 300 .

[0025] The second clamping arm 200 includes a second clamping claw 210 , a second guide rod 230 , a second guide wheel 231 , a force transmission rod 250 , two second connecting plates 220 , two support rods 240 and two pins 232 .

[0026] The two second connecting plates 220 are respectively arranged at two ends of the second clamping jaw 210 , and one end of the second connecting plate 220 is vertically fixed to the second clamping jaw 210 .

[0027] The second guide rod 230 is disposed at the other end of the second connecting plate 220 . The second guide rod 230 passes through the two second connecting plates 220 , and the second guide rod 230 is fixedly connected to the second connecting plates 220 .

[0028] The two pins 232 are respectively arranged at two ends of the second guide rod 230 , and the outer circumferential surface of the pin 232 is fixedly connected to the outer circumferential surface of the second guide rod 230 . The second guide wheel 231 is rotatably connected to the second guide rod 230 .

[0029] The force transmission rod 250 is arranged in parallel with the second guide rod 230 , and two ends of the two support rods 240 are fixedly connected to the force transmission rod 250 and the second guide rod 230 respectively, and an angle β exists between the support rod 240 and the second connecting plate 220 .

[0030] The first clamping arm 100 includes a first clamping claw 110 , a first guide rod 130 , a first guide wheel 131 and two first connecting plates 120 .

[0031] The first guide rod 130 is arranged between the two first connecting plates 120 , and both ends of the first guide rod 130 are fixedly connected to the first connecting plates 120 . The first guide wheel 131 is rotatably connected to the first guide rod 130 .

[0032] The two first connecting plates 120 are respectively arranged at two ends of the first clamping jaw 110 . One end of the first connecting plate 120 is vertically fixed to the first clamping jaw 110 , and the other end of the first connecting plate 120 is hinged to the pin shaft 232 .

[0033] The sling 300 passes through the first guide wheel 131 and the second guide rod 230 in sequence and is fixedly connected to the force transmission rod 250 .

[0034] Specific implementation method 2: Combination Figures 1 to 3 To explain this embodiment, in this embodiment, the force transmission rod 250 is arranged between the second guide rod 230 and the second clamping jaw 210 , and both ends of the support rod 240 are welded to the force transmission rod 250 and the second guide rod 230 .

[0035] Furthermore, the pin shaft 232 is connected to the second guide rod 230 by welding.

[0036] Furthermore, the first clamping jaw 110 and the second clamping jaw 210 are both angle steels.

[0037] Furthermore, the first connecting plate 120 and the second connecting plate 220 are made of low carbon steel.

[0038] Other components and connection relationships are the same as those in the first specific implementation method.

[0039] How it works

[0040] Combination Figures 1 to 4 The working principle of the present invention is described:

[0041] The present invention is used in conjunction with a lifting device (such as a truck crane), one end of the sling 300 is connected to the lifting device, and the other end of the sling 300 passes through the first guide wheel 131 and the second guide rod 230 in sequence and is fixedly connected to the force transmission rod 250.

[0042] The first clamping jaw 110 and the second clamping jaw 210 are both angle steels. When the precast concrete panel 400 is hoisted, the present invention is placed flat on the precast concrete panel 400 to ensure that the angle steels are against the precast concrete panel 400.

[0043] When the sling 300 is tightened upward, the first clamping arm 100 is first subjected to force, and the present invention and the precast concrete panel 400 form an angle with the horizontal plane. Then, under the guidance of the first guide wheel 131 and the second guide wheel 231, the sling 300 transmits the tightening force to the force transmission rod 250. Since the first connecting plate 120 is hinged to the pin 232, the second clamping arm 200 can rotate relative to the first clamping arm 100, so the first clamping jaw 110 and the second clamping jaw 210 hold the precast concrete panel 400 tightly; then the present invention and the precast concrete panel 400 are lifted.

[0044] When the precast concrete panel 400 is hoisted to the predetermined position on the slope, the present invention can be lowered to make the precast concrete panel 400 fall to the ground. Since the precast concrete panel 400 always has an angle with the horizontal plane during the hoisting process, and the angle is close to the slope of the slope (by changing the angle β between the support rod 240 and the second connecting plate 220, thereby changing the lifting center of gravity of the present invention, and then controlling the angle between the precast concrete panel 400 and the horizontal plane, so that the angle is close to the slope of the slope), the lower surface of the precast concrete panel 400 can fall directly on the sand cushion layer, and there is almost no disturbance to the sand cushion layer.

[0045] Finally, with the assistance of the operator, the second clamp arm 200 is pulled so that the first clamp 110 and the second clamp 210 no longer hold the precast concrete panel 400 tightly. At the same time, the lifting equipment lifts the present invention, thus completing the lifting and laying of the current precast concrete panel 400. This process is repeated to achieve continuous laying of the precast concrete panel 400 on the slope.

[0046] The present invention has been disclosed as above in the form of a preferred embodiment, but it is not intended to limit the present invention. Any simple modification, equivalent changes and modifications made to the above implementation cases by any professional and technical personnel who do not deviate from the content of the technical solution of the present invention and based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A concrete precast panel clamping hanger, characterized in that: It comprises a first clamping arm (100), a second clamping arm (200) and a sling (300); The second clamping arm (200) comprises a second clamping claw (210), a second guide rod (230), a second guide wheel (231), a force transmission rod (250), two second connecting plates (220), two support rods (240) and two pins (232); Two second connecting plates (220) are respectively arranged at two ends of the second clamping jaw (210), and one end of the second connecting plate (220) is vertically fixed to the second clamping jaw (210); The second guide rod (230) is arranged at the other end of the second connecting plate (220), the second guide rod (230) passes through the two second connecting plates (220), and the second guide rod (230) is fixedly connected to the second connecting plates (220); Two pin shafts (232) are respectively arranged at two ends of the second guide rod (230), and the outer circumferential surface of the pin shaft (232) is fixedly connected to the outer circumferential surface of the second guide rod (230), and the second guide wheel (231) is rotatably connected to the second guide rod (230); The force transmission rod (250) and the second guide rod (230) are arranged in parallel, the two ends of the two support rods (240) are respectively fixed to the force transmission rod (250) and the second guide rod (230), and an angle β exists between the support rod (240) and the second connecting plate (220); The first clamping arm (100) comprises a first clamping claw (110), a first guide rod (130), a first guide wheel (131) and two first connecting plates (120); The first guide rod (130) is arranged between the two first connecting plates (120), and both ends of the first guide rod (130) are fixedly connected to the first connecting plates (120), and the first guide wheel (131) is rotatably connected to the first guide rod (130); Two first connecting plates (120) are respectively arranged at two ends of the first clamping jaw (110), one end of the first connecting plate (120) is vertically fixed to the first clamping jaw (110), and the other end of the first connecting plate (120) is hinged to the pin shaft (232); The sling (300) passes through the first guide wheel (131) and the second guide rod (230) in sequence and is then fixedly connected to the force transmission rod (250).

2. The concrete precast panel clamping hanger according to claim 1, characterized in that: The force transmission rod (250) is arranged between the second guide rod (230) and the second clamping claw (210), and both ends of the support rod (240) are welded to the force transmission rod (250) and the second guide rod (230).

3. The concrete precast panel clamping hanger according to claim 2, characterized in that: The pin shaft (232) is connected to the second guide rod (230) by welding.

4. The concrete precast panel clamping hanger according to claim 3 is characterized in that: The first clamping jaw (110) and the second clamping jaw (210) are both angle steels.

5. The concrete precast panel clamping hanger according to claim 4, characterized in that: The first connecting plate (120) and the second connecting plate (220) are made of low-carbon steel.

Images