Clamping and hoisting device for constructional engineering

Abstract

The utility model provides a constructional engineering clamping and hoisting device which comprises a fixing frame and further comprises a clamping arm, the clamping arm is rotationally connected with the fixing frame through a rotating shaft, a power push-pull rod is arranged between the clamping arm and the fixing frame, a containing groove is formed in the inner surface of the clamping arm, a push-pull device is arranged in the containing groove, and the power push-pull rod is arranged in the containing groove. And a telescopic push plate capable of extending out of and being stored in the storage groove is fixed on the push-pull device. According to the clamping and hoisting device for constructional engineering provided by the utility model, the telescopic push plates are arranged on the inner surfaces of the clamping arms, so that clamped materials can be more tightly attached to one another, the friction force is increased, safety accidents caused by falling in the transportation process are avoided, and the risk that the materials fall from high altitude to be damaged is also avoided; and the conveying efficiency and the material integrity are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a clamping and hoisting device for construction engineering. Background Art

[0002] Engineering lifting device is usually a mechanical device used to lift and carry heavy objects. Its main function is to clamp or fix the heavy objects so that they can be lifted and transported safely and stably.

[0003] This device is generally composed of a clamping mechanism, a lifting rope or chain, and a lifting tool. The clamping mechanism can be a mechanical clamp, a fixture, or a hydraulic or pneumatic clamp, which is used to clamp the weight to ensure that it will not slip or move during the lifting process. The lifting rope or chain connects the clamping mechanism and the lifting tool to lift the weight.

[0004] Engineering lifting devices are widely used in the fields of construction, logistics, manufacturing, etc. They can be used to lift heavy objects such as steel, prefabricated components, machinery and equipment, improve work efficiency and ensure work safety.

[0005] Of course, the specific type and design of the lifting device will vary according to different engineering requirements and the characteristics of the heavy objects. In actual use, it is necessary to select the appropriate lifting device based on the weight, shape, size and lifting environment of the heavy object, and operate it strictly in accordance with the operating procedures to ensure the safety and smooth progress of the lifting operation.

[0006] When existing lifting devices clamp materials, a gap is usually left at the top of the materials, causing the materials to fall off during transportation due to lack of tightening, causing safety hazards. Utility Model Content

[0007] In order to overcome the above technical problems, the utility model provides a clamping and hoisting device for construction engineering, which is used to improve the problem of poor clamping fit.

[0008] In order to achieve the above-mentioned purpose, the utility model proposes a clamping and lifting device for construction projects, including a fixed frame and a clamping arm, wherein the clamping arm is rotatably connected to the fixed frame via a rotating shaft, a power push-pull rod is provided between the clamping arm and the fixed frame, a receiving groove is provided on the inner surface of the clamping arm, a push-pull device is provided in the receiving groove, and a telescopic push plate that can be extended and received in the receiving groove is fixed to the push-pull device.

[0009] The fixed frame is the core structure of the overall lifting device, which is equivalent to the assembly device. A clamping arm is set under the fixed frame to clamp long strips or tubes. A power push-pull rod is set between the clamping arm and the fixed frame, and the opening and merging of the clamping arm are realized through the power push-pull rod.

[0010] The push-pull device and the telescopic push plate are installed on the inner surface of the clamping arm. When clamping materials, there will be a certain gap because the materials are not tightly fitted, and they are not firmly squeezed against each other, which will cause the materials to fall off during the lifting process, causing certain safety hazards and damage to the materials. The telescopic push plate protrudes from the inner surface of the clamping arm, which can press the materials clamped therein and fill the gaps, keep the materials tightly fitted during the lifting process, and prevent the materials from falling off during transportation.

[0011] Preferably, the push-pull device is an electric push-pull rod.

[0012] The electric push-pull rod can adjust the telescopic push plate through an electric control device. The electric control device has high accuracy, simple related structure and easy operation.

[0013] Preferably, one electric push-pull rod is respectively provided at both ends of the accommodating groove in the length direction.

[0014] Electric push-pull rods are arranged on both sides of the receiving slot, so that the extension heights of the two sides of the telescopic push plate can be different. For example, only one side of the telescopic push plate extends out of the receiving slot, and the other side does not move. Or the two sides of the telescopic push plate extend to different heights. The purpose is to fine-tune the specific state of the telescopic push plate when clamping the material, so that the telescopic push plate can fit the clamped material more accurately and make the material less likely to fall off.

[0015] Preferably, a support plate capable of fitting against the clamped object is provided on the end surface of the telescopic push plate protruding out of the accommodating groove.

[0016] The support plate is a plate-like structure that is set on the outermost end surface of the telescopic push plate and plays a clamping role. The support plate can be a larger arc-shaped plate, so the contact area with the clamped material is larger, and the pressure on the contact surface of the material can be reduced, which will not cause extrusion damage to the material. The arc surface of the support plate fits the clamped material. The larger the contact area, the greater the friction, which further ensures that the material will not fall off.

[0017] Preferably, a slide rail is provided on the telescopic push plate, and the support plate is slidably connected to the telescopic push plate via the slide rail.

[0018] The support plate can slide along the length direction of the telescopic push plate and be fixed after reaching the required position. The purpose of this design is to further adapt to the position structure of the clamped material and match the better position to achieve stable clamping of the material.

[0019] Preferably, a positioning hole is formed on the support plate, and a fixing pin corresponding to the positioning hole is provided on the telescopic push plate.

[0020] The position of the support plate can be positioned by the fixing pin. After the support plate is adjusted to a suitable position, the fixing pin fixes it so that the support plate reaches an optimal working angle.

[0021] Preferably, an anti-slip pad is provided on the support plate.

[0022] The function of the anti-skid pad is to further increase the friction of the support plate clamping the material, making the material more stable.

[0023] Preferably, an electromagnetic device is provided on the support plate.

[0024] An electromagnetic device is arranged on the supporting plate. When clamping materials containing iron, the electromagnetic device can assist in adsorbing the materials, making the clamping stability stronger.

[0025] The construction engineering clamping and lifting device provided by the utility model provides a telescopic push plate on the inner surface of the clamping arm, so that the clamped materials can fit each other more closely, thereby increasing the friction, avoiding safety accidents caused by falling off during transportation, and avoiding the risk of material falling from high altitude and being damaged, thereby improving the transportation efficiency and the integrity of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a clamping and hoisting device provided in an embodiment of the utility model;

[0027] Figure 2 A schematic diagram of the front structure of the clamping and hoisting device provided in an embodiment of the utility model;

[0028] Figure 3 This is a three-dimensional enlarged structural schematic diagram of the telescopic push plate provided in an embodiment of the utility model.

[0029] Figure 4 A schematic diagram of the side structure of a telescopic push plate provided in an embodiment of the utility model.

[0030] Description of Reference Numerals

[0031] 1. Fixed frame; 2. Power push-pull rod; 3. Clamping arm; 4. Receiving slot; 5. Telescopic push plate; 6. Support plate; 7. Electric push-pull rod. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that for the purpose of clarity, the representation and description of components or processes that are not related to the present invention and are known to those of ordinary skill in the art are omitted in the drawings and descriptions.

[0033] The utility model is further described below in conjunction with the accompanying drawings.

[0034] like Figure 1~Figure 4 As shown, the utility model provides a clamping and lifting device for construction projects, including a fixed frame 1, and also includes a clamping arm 3, the clamping arm 3 is rotatably connected to the fixed frame 1 through a rotating shaft, a power push-pull rod 2 is provided between the clamping arm 3 and the fixed frame 1, a receiving groove 4 is provided on the inner surface of the clamping arm 3, a push-pull device is provided in the receiving groove 4, and a telescopic push plate 5 that can be extended and stored in the storage groove is fixed on the push-pull device.

[0035] The fixing frame 1 is the core structure of the overall lifting device, which is equivalent to the assembly device. A clamping arm 3 is arranged below the fixing frame 1 to clamp long strips or tubes of materials. A power push-pull rod 2 is arranged between the clamping arm 3 and the fixing frame 1, and the opening and merging of the clamping arm 3 are realized by the power push-pull rod 2.

[0036] The push-pull device and the telescopic push plate 5 are installed on the inner surface of the clamping arm 3. When clamping materials, since the materials are not tightly fitted, a certain gap will be generated and they are not firmly squeezed against each other, which will cause the materials to fall off during the hoisting process, causing certain safety hazards and damage to the materials. The telescopic push plate 5 protrudes from the inner surface of the clamping arm 3, which can press the materials clamped therein and fill the gaps, so as to keep the materials tightly fitted during the hoisting process and prevent the materials from falling off during transportation.

[0037] In one embodiment of the present invention, the push-pull device is an electric push-pull rod 7 .

[0038] The electric push-pull rod 7 can adjust the telescopic push plate 5 through the electric control device, which has high accuracy, simple structure and easy operation. Since the telescopic push plate 5 only presses and fits the materials that are not tightly fitted, it does not require a large thrust, so the electric push-pull rod 7 does not need to bear excessive gravity or clamping force, and only needs to press the loose materials near the top.

[0039] In one embodiment of the present invention, an electric push-pull rod 7 is provided at each end of the accommodating groove 4 in the length direction.

[0040] The electric push-pull rods 7 are respectively arranged on both sides of the receiving slot 4, so that the extension heights of the two sides of the telescopic push plate 5 can be different. For example, only one side of the telescopic push plate 5 extends out of the receiving slot 4, and the other side does not move. Or the extension heights of the two sides of the telescopic push plate 5 are different, the purpose is to fine-tune the specific state of the telescopic push plate 5 when clamping the material, so that the telescopic push plate 5 can fit the clamped material more accurately, making it less likely for the material to fall off.

[0041] In one embodiment of the present invention, a support plate 6 capable of fitting the clamped object is provided on the end surface of the telescopic push plate 5 that protrudes out of the accommodating groove 4 .

[0042] The support plate 6 is a plate-like structure provided on the outermost end surface of the telescopic push plate 5 and plays a clamping role. The support plate 6 can be a larger arc-shaped plate, so that the contact area with the clamped material is larger, and the pressure on the contact surface of the material can be reduced, and the material will not be squeezed and damaged. The arc-shaped surface of the support plate 6 fits the clamped material, and the larger the contact area, the greater the friction, which further ensures that the material will not fall off.

[0043] In one embodiment of the present invention, a slide rail is provided on the telescopic push plate 5, and the support plate 6 is slidably connected to the telescopic push plate 5 via the slide rail.

[0044] The support plate 6 can slide along the length direction of the telescopic push plate 5 and be fixed after reaching the desired position. The function of such a design is to further adapt to the position structure of the clamped material and match a better position to achieve stable clamping of the material.

[0045] In one embodiment of the present invention, a positioning hole is formed on the support plate 6 , and a fixing pin corresponding to the positioning hole is provided on the telescopic push plate 5 .

[0046] The position of the support plate 6 can be positioned by the fixing pin. After the support plate 6 is adjusted to a suitable position, the fixing pin fixes it so that the support plate 6 reaches an optimal working angle.

[0047] In one embodiment of the present invention, an anti-slip pad is provided on the support plate 6 .

[0048] The function of the anti-skid pad is to further increase the friction force of the support plate 6 clamping the material, making the material more stable.

[0049] In one embodiment of the present invention, an electromagnetic device is provided on the support plate 6 .

[0050] An electromagnetic device is arranged on the support plate 6. When clamping materials containing iron, the electromagnetic device can assist in adsorbing the materials, making the clamping stability stronger.

[0051] The construction engineering clamping and lifting device provided by the utility model provides a telescopic push plate on the inner surface of the clamping arm, so that the clamped materials can fit each other more closely, thereby increasing the friction, avoiding safety accidents caused by falling off during transportation, and avoiding the risk of material falling from high altitude and being damaged, thereby improving the transportation efficiency and the integrity of the materials.

[0052] Although the utility model and its advantages have been described in detail, it should be understood that various changes, substitutions and conversions can be made without exceeding the spirit and scope of the utility model defined by the attached claims. Moreover, the scope of the present application is not limited to the specific embodiments of the process, equipment, means, method and steps described in the specification. It will be easily understood by those of ordinary skill in the art from the disclosure of the utility model that according to the utility model, existing and future processes, equipment, means, methods or steps that perform substantially the same functions as the corresponding embodiments described herein or obtain substantially the same results as the corresponding embodiments described herein can be used. Therefore, the attached claims are intended to include such processes, equipment, means, methods or steps within their scope.

Claims

1. A construction engineering clamping and lifting device, comprising a fixing frame (1), characterized in that: It also includes a clamping arm (3), the clamping arm (3) being rotatably connected to the fixing frame (1) via a rotating shaft, a power push-pull rod (2) being provided between the clamping arm (3) and the fixing frame (1), a receiving groove (4) being provided on the inner surface of the clamping arm (3), a push-pull device being provided in the receiving groove (4), and a telescopic push plate (5) being fixed on the push-pull device and capable of extending and being received in the receiving groove.

2. The construction engineering clamping and lifting device according to claim 1, characterized in that: The push-pull device is an electric push-pull rod (7).

3. The construction engineering clamping and lifting device according to claim 2, characterized in that: An electric push-pull rod (7) is respectively provided at both ends of the accommodating groove (4) in the length direction.

4. The construction engineering clamping and hoisting device according to claim 3 is characterized in that: A support plate (6) capable of fitting against a clamped object is provided on the end surface of the telescopic push plate (5) that protrudes out of the accommodating groove (4).

5. The construction engineering clamping and hoisting device according to claim 4, characterized in that: The telescopic push plate (5) is provided with a slide rail, and the support plate (6) is slidably connected to the telescopic push plate (5) via the slide rail.

6. The construction engineering clamping and hoisting device according to claim 5, characterized in that: A positioning hole is formed on the support plate (6), and a fixing pin corresponding to the positioning hole is provided on the telescopic push plate (5).

7. The construction engineering clamping and hoisting device according to claim 6, characterized in that: An anti-slip pad is provided on the support plate (6).

8. The construction engineering clamping and hoisting device according to claim 7, characterized in that: An electromagnetic device is provided on the support plate (6).

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