A clamping device and hoisting system for precast component hoisting

Abstract

The utility model relates to hoisting equipment technical field, concretely relates to a clamping device and hoist system for prefabricated component hoist. Among them, clamping device includes hoisting rope, two fit pieces and two mutually cross and hinged scissors board, and the both ends of scissors board are clamping end and hoist end respectively, two fit pieces are arranged respectively in the shearing side of two scissors board, and close to clamping end arrangement, and the both ends of hoisting rope are connected in the hoist end of two scissors board. The clamping device can stably hold prefabricated component, and after prefabricated component installation is completed, the clamping device can be easily taken off from prefabricated component, to solve the problem that when hoisting prefabricated component through traditional rope, the prefabricated component is pulled in the process of extracting the rope, and the position change is caused, and the installation precision of prefabricated component is affected.

Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment technology, specifically to a clamping device and hoisting system for hoisting prefabricated components. Background Technology

[0002] With the rapid development of construction in various industries, precast components have emerged in large quantities. Precast components can effectively improve the efficiency and quality of construction. As the market share grows, the quality and safety requirements for the construction process of precast components are also further enhanced.

[0003] Currently, the installation of prefabricated components requires hoisting them to the installation location, followed by positioning and installation by staff; the specific method is as follows:

[0004] After the precast components are securely tied with ropes, the lifting end of the hoisting device acts on the ropes binding the precast components to lift them to the installation position. When the precast components are above and close to the installation position, the workers cooperate with the hoisting device to position the precast components. After positioning is completed, the precast components are lowered using the hoisting device and assembled. Then, the ropes binding the precast components are pulled out, completing the installation of the precast components.

[0005] However, after the precast components are hoisted into place and assembled, the workers may pull on the precast components while pulling out the ropes, causing the position of the precast components to change, which affects the installation accuracy of the precast components and may pose a safety hazard. Utility Model Content

[0006] This utility model provides a clamping device for hoisting precast components, in order to solve the technical problem in the prior art that the installation accuracy of precast components is affected when the ropes are pulled out after they are tied together for hoisting and installation.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A clamping device for hoisting precast components includes a hoisting rope, two fitting parts, and two intersecting and hinged scissor blades.

[0009] The two ends of the shear plate are the clamping end and the lifting end, respectively;

[0010] Two bonding components are respectively set on the shearing side of the two shear plates and arranged close to the clamping end;

[0011] The two ends of the lifting rope are respectively connected to the lifting ends of the two scissor plates;

[0012] By pulling the hoisting rope, the hoisting ends of the two shear plates are brought closer together, so that the mating parts on the two shear plates are close together and tightly attached to the two opposite sides of the precast component, thus achieving clamping of the precast component.

[0013] To better realize this utility model, the above structure is further optimized, and the bonding component includes a clamping plate and a support plate;

[0014] The support plate is fixedly installed at the center of one side of the clamping plate, and the plane of the support plate is perpendicular to the plane of the clamping plate.

[0015] The support plate is hinged to the shear plate, and the plane of the support plate is parallel to the plane of the shear plate.

[0016] To better realize this utility model, the above structure is further optimized by providing a rubber pad on the side of the clamping plate opposite to the support plate.

[0017] To better realize this utility model, the above structure is further optimized by including a connector;

[0018] The connector has through slots on both sides, and the shear plate is fixedly connected in one of the through slots, with the connector located on the shearing side of the shear plate.

[0019] The end of the support plate away from the clamping plate is hinged to another through slot of the connector.

[0020] In addition, this utility model also provides a hoisting system, which includes a hoisting device and at least two of the above-mentioned clamping devices for hoisting prefabricated components;

[0021] The lifting end of the lifting device is connected to the lifting ropes in all the clamping devices used for lifting precast components.

[0022] Compared with the prior art, this utility model has at least the following technical effects:

[0023] In the clamping device provided by this utility model, two scissor blades are crossed and hinged together. Two fitting parts are respectively arranged on the shearing side of the two scissor blades and close to the clamping end. The two fitting parts are opposite to each other, and the lifting ends of the two scissor blades are respectively connected to the two ends of the lifting rope. When it is necessary to lift the precast component, the lifting rope is pulled by the lifting end of the lifting device, so that the lifting ends of the two scissor blades are brought closer to each other. The two fitting parts are also brought closer to each other under the action of the two scissor blades, so that the two fitting parts can be tightly attached to the two opposite sides of the precast component, so as to achieve stable clamping of the precast component. The lifting device can then be used for lifting. After the lifting is completed, the clamping device can be easily removed from the precast component, avoiding the situation where the precast component is pulled and its position changes, affecting the installation accuracy of the precast component. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a clamping device for hoisting prefabricated components, provided by this utility model.

[0025] Figure 2 This utility model provides a schematic diagram of the structure of the scissor plate in a clamping device for hoisting prefabricated components.

[0026] Figure 3 The front view of the fitting component in a clamping device for hoisting prefabricated components provided by this utility model.

[0027] Figure 4 A bottom view of the fitting component in a clamping device for hoisting prefabricated components provided by this utility model.

[0028] Figure 5 A side view of the fitting component in a clamping device for hoisting prefabricated components provided by this utility model.

[0029] Figure 6 The front view of the connecting component in a clamping device for hoisting prefabricated components provided by this utility model.

[0030] Figure 7 This is a top view of a connecting member in a clamping device for hoisting prefabricated components, provided by this utility model.

[0031] Figure 8 This is a schematic diagram of the hooking operation of a clamping device for hoisting prefabricated components provided by this utility model.

[0032] Figure 9 This is a schematic diagram of a clamping device for hoisting prefabricated components, provided by this utility model, during the lifting and transfer operation.

[0033] Figure 10 This is a schematic diagram of the clamping device for hoisting prefabricated components provided by this utility model during the lowering operation.

[0034] Figure 11 This is a schematic diagram showing the operation of the hoisting system provided by this utility model.

[0035] The labels in the diagram are as follows: 1. Shear plate; 2. Lifting rope; 3. Clamping plate; 4. Support plate; 5. Connector; 6. Positioning hole; 7. Connecting hole; 8. First pin hole; 9. Second pin hole; 10. Rubber pad; 11. Mounting hole; 12. Lifting hole. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0037] like Figures 1 to 3 As shown, a clamping device for hoisting precast components includes a hoisting rope 2, two fitting parts, and two intersecting and hinged shear plates 1.

[0038] Among them, the shear plate 1 is a strip plate with a through hole at the center. The axis of the through hole is perpendicular to the plane of the strip plate. After aligning the through holes of the two shear plates 1, a pin is used to pass through the through holes of the two shear plates 1 in sequence. Then, a cotter pin is used to lock the free end of the pin so that the pin cannot come out of the through hole. The two shear plates 1 are in the shape of scissors and can rotate around the pin. The width of the middle part of the shear plate 1 is greater than the width of the two ends of the shear plate 1 to ensure that the position where the through hole is set on the shear plate 1 has sufficient structural strength to meet the requirements of hoisting prefabricated components.

[0039] The two ends of the shear plate 1 are the clamping end and the lifting end, respectively. Two fitting pieces are respectively set on the shearing side of the two shear plates 1 and arranged close to the clamping end.

[0040] The two ends of the lifting rope 2 are respectively connected to the lifting ends of the two scissor plates 1;

[0041] In the following description, "this device" refers to the "clamping device for hoisting prefabricated components" in this utility model;

[0042] See Figure 8 When hooking the precast component, the lifting end of the lifting device is first connected to the middle position of the lifting rope 2 of this device. The lifting end lifts the device and moves it above the precast component to be lifted. At this time, the device is pulled by the lifting end, and the clamping ends of the two shear plates 1 are close to each other. After the lifting end of the lifting device is used to adjust the device to a height that matches the precast component, the workers pull the clamping ends of the two shear plates 1 apart and attach the two fitting pieces to the two opposite sides of the side wall of the precast component.

[0043] See Figure 9After attaching the two fitting pieces to the opposite sides of the precast component's sidewall, the precast component is lifted and transported. The lifting end of the lifting device pulls the middle position of the lifting rope 2 upwards, bringing the two lifting ends of the scissor plate 1 closer together. This causes the two fitting pieces to adhere tightly to the opposite sides of the precast component's sidewall. In other words, when the lifting end of the lifting device pulls the middle position of the lifting rope 2 upwards, the tension of the lifting rope 2 on the scissor plate 1 is converted into pressure on the clamping surface of the scissor plate 1. Under this pressure, the two fitting pieces adhere tightly to the opposite sides of the precast component's sidewall. Furthermore, as the lifting device pulls, the pressure of the two scissor plates 1 on the opposite sides of the precast component's sidewall gradually increases, thus achieving a fixed clamping of the precast component. Subsequently, the lifting device can lift the precast component at a uniform speed and transport it to the installation position.

[0044] See Figure 10 After the precast component is lifted and moved above the installation position, the precast component is lowered. Specifically, the lifting end lowers the precast component at a constant speed. After it approaches the installation position, the staff helps to adjust the orientation and angle of the precast component to complete the positioning of the precast component.

[0045] The precast component is slowly lowered from the control lifting end until it is completely in the installation position. At this point, the workers can pull open the clamping ends of the two scissor plates 1 and detach the device from the precast component, thus completing the entire hoisting process of the precast component.

[0046] It should be noted that the shearing side mentioned above refers to the side that is close to each other in the portion from the hinge position of the two shear plates 1 to the clamping end.

[0047] In some embodiments, see Figures 3 to 5 The bonding components include a clamping plate 3 and a support plate 4;

[0048] The support plate 4 is fixedly disposed at the center of one side of the clamping plate 3, and the plane of the support plate 4 is perpendicular to the plane of the clamping plate 3;

[0049] The support plate 4 is hinged to the shear plate 1, and the plane of the support plate 4 is parallel to the plane of the shear plate 1, so that both clamping plates 3 can fit against the two opposing sides of the precast component sidewall.

[0050] When hooking the precast component, the operator rotates the support plate 4 so that the support plate 4 rotates around its hinge position until the clamping plate 3 is parallel to the side wall of the precast component to be hoisted, so as to ensure that the clamping plate 3 can fit against the side wall of the precast component.

[0051] Further, see Figure 1 and Figure 7 The device also includes a connector 5;

[0052] The connector 5 has through slots on both sides opposite to each other. The shear plate 1 is fixedly connected to one of the through slots, and the connector 5 is located on the shearing side of the shear plate 1.

[0053] The end of the support plate 4 away from the clamping plate 3 is hinged to another through groove of the connector 5.

[0054] The addition of connector 5 enables the device to clamp prefabricated components with thinner sidewalls more stably.

[0055] In some embodiments, see Figure 2 , Figure 6 and Figure 7 The scissor plate 1 is provided with at least one through positioning hole 6 near the clamping end, and the axis of the positioning hole 6 is perpendicular to the plane where the scissor plate 1 is located.

[0056] When the number of positioning holes 6 is one;

[0057] Connecting holes 7 are provided on two opposite side walls of one of the through grooves of the connector 5, and the positions of the connecting holes 7 correspond to the positions of the positioning holes 6.

[0058] By using a pin to pass through one of the connecting holes 7, the positioning hole 6 and the other connecting hole 7 in sequence, the connector 5 and the shear plate 1 are connected; in this state, the shearing side of the shear plate 1 abuts against the bottom of the through groove.

[0059] By having the shearing side of the scissor plate 1 abut against the bottom of the through groove and engage with the pin, the relative position of the scissor plate 1 and the connector 5 is fixed. Since this embodiment only requires one pin to achieve the relative fixation of the connector 5 and the scissor plate 1, the manufacturing cost of this device can be reduced.

[0060] When the number of the above positioning holes 6 is greater than one;

[0061] In one of the through slots of the connector 5, there are two opposite side walls with a number of connecting holes 7 equal to the number of positioning holes 6, and the positions of all connecting holes 7 correspond one-to-one with the positions of all positioning holes 6.

[0062] The scissor plate 1 is fitted into the through groove; after the pin is inserted into the connecting hole 7 on one side wall of the through groove, it passes through the corresponding positioning hole 6 and the connecting hole 7 on the other side wall of the through groove in sequence, so as to realize the fixed connection between the connector 5 and the scissor plate 1.

[0063] In some embodiments, see Figure 6 and Figure 7 In the other through groove of the connector 5 (the through groove opposite to the scissor plate 1), there are two opposite side walls provided with first pin holes 8, and the axis of the first pin holes 8 is perpendicular to the plane where the side wall of the through groove is located.

[0064] The support plate 4 is provided with a through second pin hole 9, and the axis of the second pin hole 9 is perpendicular to the plane of the support plate 4.

[0065] The support plate 4 is hinged to the connector 5 by means of pins passing through one first pin hole 8, the second pin hole 9 and the other first pin hole 8 in sequence.

[0066] In some embodiments, see Figure 1 and Figure 4 A rubber pad 10 is provided on the side of the clamping plate 3 that is away from the support plate 4;

[0067] The clamping plate 3 is a rectangular plate structure. There are through mounting holes 11 near the four corners of the clamping plate 3. The shape of the rubber pad 10 matches the shape of the clamping plate 3. The rubber pad 10 has a countersunk hole corresponding to the mounting hole 11. After the bolt passes through the countersunk hole and the mounting hole 11, it is connected to the nut to fix the rubber pad 10 on the clamping surface of the clamping plate 3. The nut of the bolt is completely submerged in the countersunk hole.

[0068] When hoisting precast components, the rubber pad 10 can hold the friction between the plate 3 and the precast component, and the rubber pad 10 is soft in texture, which can prevent the side wall of the precast component from being scratched.

[0069] In some embodiments, see Figure 1 and Figure 2 This device also includes a connecting buckle;

[0070] A lifting hole 12 is provided near the lifting end of the shear plate 1, and the axis of the lifting hole 12 is perpendicular to the plane where the shear plate 1 is located;

[0071] The connecting buckle is located in the lifting hole 12;

[0072] Both ends of the aforementioned hoisting rope 2 are connected to the two ends of the hoisting rope 2 respectively via connecting buckles.

[0073] The connecting buckle is a U-shaped buckle. After one leg of the U-shaped buckle passes through the lifting hole 12, the two legs are parallel to the two sides of the scissor plate 1. The two legs are connected and fixed with bolts, and the end of the lifting rope 2 is fixed with the bolts. The method of connecting the lifting rope 2 to the scissor plate 1 with a U-shaped buckle facilitates the installation and disassembly of the lifting rope 2.

[0074] Based on the above-mentioned clamping device for hoisting prefabricated components, this embodiment provides a hoisting system, which includes a hoisting device and at least two of the above-mentioned clamping devices for hoisting prefabricated components. The hoisting end of the hoisting device is connected to the hoisting rope 2 in all the clamping devices for hoisting prefabricated components.

[0075] This hoisting system can be used to hoist irregularly shaped prefabricated components. To better illustrate the effectiveness of this hoisting system, this embodiment uses a U-shaped prefabricated component (a prefabricated component with a U-shaped cross-section) as an example:

[0076] See Figure 11 The number of lifting ends of the lifting device is consistent with that of the clamping device. Multiple clamping devices are clamped on two opposite side walls of the precast component. After the lifting ropes 2 of all clamping devices are connected through the multiple lifting ends of the lifting device, the lifting device is started and the multiple lifting ends simultaneously lift the clamping devices to realize the lifting of the precast component.

[0077] When hoisting precast components, the clamping devices are deployed in pairs and staggered to ensure that the precast components do not tilt during the hoisting process;

[0078] After the precast components are lifted, they may rotate around their own center of gravity if affected by wind or other external forces. However, after being lifted to the vicinity of the installation location, the staff can help to accurately place the precast components in the installation location, which can still ensure the accuracy of the installation.

[0079] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0080] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clamping device for hoisting precast components, characterized in that: Includes lifting rope (2), two fittings and two intersecting and hinged shear plates (1); The two ends of the shear plate (1) are the clamping end and the lifting end, respectively; The two bonding components are respectively set on the shearing side of the two shear plates (1) and arranged close to the clamping end; The two ends of the hoisting rope (2) are respectively connected to the hoisting ends of the two scissor plates (1); By pulling the hoisting rope (2), the hoisting rope (2) pulls the hoisting ends of the two scissor plates (1) closer to each other, so that the fitting parts on the two scissor plates (1) are close to and tightly attached to the two opposite sides of the precast component, thereby achieving the clamping of the precast component.

2. The clamping device for hoisting precast components according to claim 1, characterized in that: The bonding component includes a clamping plate (3) and a support plate (4); The support plate (4) is fixedly installed at the center of one side of the clamping plate (3), and the plane of the support plate (4) is perpendicular to the plane of the clamping plate (3); The support plate (4) is hinged to the scissor plate (1), and the plane of the support plate (4) is parallel to the plane of the scissor plate (1).

3. A clamping device for hoisting precast components according to claim 2, characterized in that: The clamping plate (3) has a rubber pad (10) on the side facing away from the support plate (4).

4. A clamping device for hoisting precast components according to claim 3, characterized in that: It also includes connectors (5); The connector (5) has through slots on both sides opposite to each other. The shear plate (1) is fixedly connected to one of the through slots, and the connector (5) is located on the shearing side of the shear plate (1). The end of the support plate (4) away from the clamping plate (3) is hinged to another through slot of the connector (5).

5. A hoisting system, characterized in that: It includes a lifting device and at least two clamping devices for lifting precast components as described in any one of claims 1-4; The lifting end of the lifting device is connected to the lifting ropes (2) in all the clamping devices used for lifting precast components.

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