Prefabricated walling crib hoisting device

Abstract

The utility model relates to the technical field of municipal construction, in particular to a prefabricated walling crib hoisting device which comprises two hoisting rods arranged in a crossed mode, the upper middle portions of the two hoisting rods are hinged to each other, hoisting rings are arranged at the upper ends of the two hoisting rods respectively, and clamping rods are arranged at the lower ends of the two hoisting rods respectively. The sides, close to each other, of the clamping rods are fixedly connected with clamping plates. And hinge holes are formed in the clamping rods, rotating rods are rotationally arranged in the hinge holes, L-shaped rods are fixedly arranged on the rotating rods, and positioning plates are vertically arranged at the bottom ends of the L-shaped rods. According to the utility model, the hoisting power problem of the prefabricated shaft / ring is solved by ingeniously utilizing the lever principle through the two crossed hoisting rods, and the normal hoisting is ensured by converting hoisting tension into walling crib holding force. The clamping plates improve friction resistance through fixing rubber sheets to guarantee smooth hoisting.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal construction, and more specifically to a prefabricated well ring hoisting device. Background Art

[0002] In the past, during the construction of municipal roads or garden landscape engineering pipelines, after the prefabricated concrete shaft / ring is transported to the site by vehicle, it is usually necessary to use a crane to unload and lift it to a designated location, or use machinery with a lifting belt to unload and transport it. This increases the construction cost and the construction efficiency is low. In this regard, a simple lifting tool is designed and manufactured to solve the problem of lifting and unloading prefabricated concrete shaft / rings, greatly improving the construction efficiency. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, a prefabricated well ring hoisting device which is easy to use and has high safety performance is provided.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A prefabricated well ring hoisting device comprises two cross-arranged hoisting rods, the middle and upper parts of the two hoisting rods are hinged to each other, the upper ends of the two hoisting rods are respectively provided with hoisting rings, the lower ends of the two hoisting rods are respectively provided with clamping rods, and the sides of the clamping rods close to each other are respectively fixedly connected with clamping plates;

[0006] The clamping rods are all provided with hinge holes, a rotating rod is rotatably provided in the hinge holes, an L-shaped rod is fixedly provided on the rotating rod, a positioning plate is vertically provided at the bottom end of the L-shaped rod, a sliding hole is provided at the middle of the upper end of the L-shaped rod, a positioning rod is slidably provided in the sliding hole, a positioning platform is fixedly provided on one side of the positioning rod, and a spring is provided between the positioning platform and the L-shaped rod to drive the positioning platform to move toward the clamping rod direction;

[0007] The clamping rod is provided with a first positioning hole and a second positioning hole that cooperate with the positioning rod. The first positioning hole is a hemispherical hole, the second positioning hole is a cylindrical hole and the depth of the cylindrical hole is greater than that of the hemispherical hole. A spherical surface is provided at the lower end of the positioning rod. When the positioning rod cooperates with the first positioning hole, the positioning plate is parallel to the clamping plate; when the positioning rod cooperates with the second positioning hole, the positioning plate is perpendicular to the clamping plate.

[0008] Preferably, an L-shaped steel bar buckle is rotatably provided at the lower end of one of the suspension rods through a connecting bolt, and a steel bar buckle ring cooperating with the L-shaped steel bar buckle is provided at the upper end of the other suspension rod.

[0009] Preferably, the inner side walls of the two clamping plates are both provided with rubber, and the exposed surface of the rubber is a rough surface.

[0010] Preferably, reinforcing ribs are provided between the L-shaped rod and the positioning plate.

[0011] Preferably, a fixed shaft is provided at the lower end of one of the suspension rods, and a rotating shaft is rotatably provided at the upper end of the other suspension rod, a rope ring is provided between the fixed shaft and the rotating shaft, and the rope ring is fixedly connected to the fixed shaft.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model uses two cross-arranged suspension rods to cleverly use the lever principle to solve the problem of prefabricated shaft / ring hoisting power, and converts the hoisting pulling force into the well ring holding force to ensure normal hoisting. The splint increases the friction resistance by fixing the rubber to ensure smooth hoisting.

[0014] 2. The utility model sets a positioning plate, which can limit the lower part of the well ring after the well ring is lifted, so as to prevent the well ring from falling accidentally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0018] Figure 3 This is a schematic diagram of the positioning plate structure.

[0019] In the figure: 1- suspension rod, 2- suspension ring, 3- clamp rod, 4- clamp plate, 5- rotating rod, 6- L-shaped rod, 7- positioning plate, 8- positioning rod, 9- positioning platform, 10- spring, 11- first positioning hole, 12- second positioning hole, 13- connecting bolt, 14- L-shaped steel bar buckle, 15- steel bar buckle ring, 16- rubber, 17- fixed shaft, 18- rotating shaft, 19- rope ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 3As shown, a prefabricated manhole ring hoisting device includes two cross-arranged suspension rods 1, the middle and upper parts of the two suspension rods 1 are hinged to each other, and the upper ends of the two suspension rods 1 are respectively provided with lifting rings 2. During hoisting, the two lifting rings 2 are respectively connected by steel wire ropes, and then the steel wire ropes are connected by lifting equipment for hoisting. Since the suspension rods 1 are hinged to each other, the lower ends of the two suspension rods are close to each other during the hoisting process. The lower ends of the two suspension rods 1 are respectively provided with clamping rods 3, and the sides of the clamping rods 3 close to each other are respectively fixedly connected with clamping plates 4, and the side walls of the manhole ring are clamped by the clamping plates 4. Preferably, the inner side walls of the two clamping plates 4 are provided with rubber 16, and the exposed surface of the rubber 16 is a rough surface. The friction between the clamping plates 4 and the manhole ring is increased by the rubber 16.

[0022] In order to improve the safety during the lifting process, a limiting structure can also be set below the well ring. Specifically, the clamping rod 3 is provided with a hinge hole, a rotating rod 5 is rotatably arranged in the hinge hole, an L-shaped rod 6 is fixedly arranged on the rotating rod 5, a positioning plate 7 is vertically arranged at the bottom end of the L-shaped rod 6, and reinforcing ribs are arranged between the L-shaped rod 6 and the positioning plate 7. By rotating the L-shaped rod 6, the positioning plate can be driven to be inserted into or leave the bottom of the well ring.

[0023] A sliding hole is provided in the middle of the upper end of the L-shaped rod 6, a positioning rod 8 is slidably provided in the sliding hole, a positioning platform 9 is fixedly provided on one side of the positioning rod 8, and a spring 10 is provided between the positioning platform 9 and the L-shaped rod 6 to drive the positioning platform 9 to move toward the clamping rod 3. Specifically, when the positioning platform 9 is located on one side close to the clamping rod 3, the spring 10 is a compression spring; when the positioning platform 9 is located on the other side, the spring 10 is a tension spring. The clamping rod 3 is provided with a first positioning hole 11 and a second positioning hole 12 which cooperate with the positioning rod 8. The first positioning hole 11 is a hemispherical hole, the second positioning hole 12 is a cylindrical hole and the depth of the cylindrical hole is greater than that of the hemispherical hole. A spherical surface is provided at the lower end of the positioning rod 8. When the positioning rod 8 cooperates with the first positioning hole 11, the positioning plate 7 is parallel to the clamping plate 4. At this time, the positioning plate 7 does not limit the well circle. When the L-shaped rod is turned forcefully, the cooperation between the positioning rod 8 and the first positioning hole 11 can be automatically released; when the positioning rod 8 cooperates with the second positioning hole 12, the positioning plate 7 is perpendicular to the clamping plate 4. At this time, the positioning plate 7 is located below the well circle, which limits the well circle to prevent it from falling.

[0024] The lower end of one of the suspension rods 1 is provided with an L-shaped steel bar buckle 14 by means of a connecting bolt 13, and the upper end of the other suspension rod 1 is provided with a steel bar buckle ring 15 that matches the L-shaped steel bar buckle 14. When the L-shaped steel bar buckle 14 matches the steel bar buckle ring 15, the distance between the two clamping plates 4 is greater than the diameter of the well ring, which facilitates the separation of the hoisting equipment from the well ring after the well ring is hoisted to a suitable position.

[0025] Preferably, in order to facilitate the control of the relative positions of the two suspension rods 1, a fixed shaft 17 is provided at the lower end of one of the suspension rods 1, and a rotating shaft 18 is rotatably provided at the upper end of the other suspension rod 1, and a rope ring 19 is provided between the fixed shaft 17 and the rotating shaft 18, and the rope ring 19 is fixedly connected to the fixed shaft 17. By pulling the rope ring 19, the distance between the fixed shaft 17 and the rotating shaft 18 can be reduced, so that the two suspension rods 1 can be opened.

[0026] Working principle:

[0027] Before lifting, the L-shaped steel bar buckle 14 and the steel bar buckle ring 15 are in a closed state. During lifting, the steel wire rope is first connected to the lifting ring 2, and the lifting equipment is moved to the position where the prefabricated shaft / ring needs to be lifted, waiting for lifting;

[0028] Then open the L-shaped steel bar buckle 14, make the clamping plate 4 cooperate with both sides of the shaft / ring, lift the shaft ring with the lifting equipment, turn the L-shaped rod 6, and insert the positioning rod 8 into the second positioning hole 12. At this time, the positioning plate 7 is located below the shaft / ring to limit the position and achieve safety protection. Then transport it to the designated location. After lifting to the designated location, the wire rope is loosened, the L-shaped steel bar buckle 14 is buckled, and the lifting equipment carrying the tools returns to the material loading and unloading position; repeat the above steps to complete the prefabricated shaft / ring loading and unloading task.

[0029] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. A prefabricated well ring hoisting device, characterized in that: It comprises two cross-arranged suspension rods (1), the middle and upper parts of the two suspension rods (1) are hinged to each other, the upper ends of the two suspension rods (1) are respectively provided with suspension rings (2), the lower ends of the two suspension rods (1) are respectively provided with clamping rods (3), and the sides of the clamping rods (3) close to each other are respectively fixedly connected with clamping plates (4); The clamping rod (3) is provided with a hinge hole, a rotating rod (5) is rotatably arranged in the hinge hole, an L-shaped rod (6) is fixedly arranged on the rotating rod (5), a positioning plate (7) is vertically arranged at the bottom end of the L-shaped rod (6), a sliding hole is provided in the middle of the upper end of the L-shaped rod (6), a positioning rod (8) is slidably arranged in the sliding hole, a positioning platform (9) is fixedly arranged on one side of the positioning rod (8), and a spring (10) is provided between the positioning platform (9) and the L-shaped rod (6) for driving the positioning platform (9) to move in the direction of the clamping rod (3); The clamping rod (3) is provided with a first positioning hole (11) and a second positioning hole (12) which cooperate with the positioning rod (8); the first positioning hole (11) is a hemispherical hole, the second positioning hole (12) is a cylindrical hole and the depth of the cylindrical hole is greater than that of the hemispherical hole; a spherical surface is provided at the lower end of the positioning rod (8); when the positioning rod (8) cooperates with the first positioning hole (11), the positioning plate (7) is parallel to the clamping plate (4); when the positioning rod (8) cooperates with the second positioning hole (12), the positioning plate (7) is perpendicular to the clamping plate (4).

2. A prefabricated well ring hoisting device according to claim 1, characterized in that: An L-shaped steel bar buckle (14) is rotatably provided at the lower end of one of the suspension rods (1) via a connecting bolt (13), and a steel bar buckle ring (15) cooperating with the L-shaped steel bar buckle (14) is provided at the upper end of the other suspension rod (1).

3. The prefabricated well ring hoisting device according to claim 1 is characterized in that: The inner side walls of the two clamping plates (4) are both provided with rubber (16), and the exposed surface of the rubber (16) is a rough surface.

4. The prefabricated well ring hoisting device according to claim 1 is characterized in that: A reinforcing rib is provided between the L-shaped rod (6) and the positioning plate (7).

5. The prefabricated well ring hoisting device according to claim 1 is characterized in that: A fixed shaft (17) is provided at the lower end of one of the suspension rods (1), and a rotating shaft (18) is rotatably provided at the upper end of the other suspension rod (1). A rope ring (19) is provided between the fixed shaft (17) and the rotating shaft (18), and the rope ring (19) is fixedly connected to the fixed shaft (17).

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