A hoisting clamp for tapered concrete

Abstract

The utility model relates to a kind of hoisting fixture of conical concrete, comprising: fixed plate, fixed plate is used to stabilize whole hoisting fixture;Multiple clamping components, multiple clamping components are symmetrically set in the both ends of fixed plate, and respectively with the both ends of fixed plate hinged, multiple clamping components work together, for clamping to conical concrete;Moving assembly, moving assembly is installed on fixed plate, moving assembly is respectively hinged with multiple clamping components, moving assembly adjusts the distance between multiple clamping components when hoisting fixture works, to clamp conical concrete;Lifting assembly, lifting assembly is installed on the top of fixed plate, and is connected with moving assembly, lifting assembly is used to provide lifting point for the hoisting operation of hoisting fixture.Design clamping component and moving assembly, the state of clamping component is adjusted by moving assembly, realize the clamping and put down of conical concrete quickly, and cooperate with lifting assembly, facilitate the use of whole hoisting fixture, improve hoisting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lifting clamp technology, and in particular to a lifting clamp for conical concrete. Background Technology

[0002] Precast concrete components, as building parts prefabricated in factories, can be mass-produced and standardized, and are widely used in engineering, production, and daily life. Conical concrete foundations for fences, as independent concrete components with identical specifications, can also be mass-produced and standardized in factories, which helps improve construction efficiency.

[0003] Each precast component of the fence foundation weighs over 200 kilograms, making manual handling time-consuming, labor-intensive, inefficient, and posing a risk of injury to construction workers. Traditionally, hoisting precast concrete components involves using shackles to connect steel wire ropes to pre-installed lifting rings on the components. To ensure stability during hoisting, the components require repeated binding, and the bindings must be released after reaching the target position, significantly reducing hoisting efficiency. Furthermore, the sloping sidewalls of the conical concrete add to the difficulty of binding the wire ropes. Therefore, a hoisting clamp for conical concrete is proposed. Utility Model Content

[0004] This utility model provides a hoisting clamp for conical concrete to solve at least one of the above-mentioned technical problems.

[0005] This utility model provides a hoisting clamp for conical concrete, comprising:

[0006] A fixing plate, which is used to stabilize the entire lifting clamp;

[0007] Multiple clamping components are symmetrically arranged at both ends of the fixed plate and respectively hinged to both ends of the fixed plate. The multiple clamping components work together to clamp the conical concrete.

[0008] A movable component is mounted on the fixed plate and is hinged to a plurality of clamping components. When the lifting fixture is in operation, the movable component adjusts the distance between the plurality of clamping components to clamp the conical concrete.

[0009] A lifting assembly is mounted on top of the fixed plate and connected to the moving assembly. The lifting assembly is used to provide lifting points for the lifting operation of the lifting clamp.

[0010] In one embodiment, each of the clamping components includes a clamping arm, a baffle, and a base plate. The upper part of the clamping arm is hinged to the fixed plate, the lower end of the clamping arm is provided with the base plate, and both ends of the base plate are provided with the baffle.

[0011] In one embodiment, the system further includes multiple sets of limiting components, which are respectively mounted on multiple clamping components to ensure the stability of the conical concrete after it is lifted when the lifting clamp is in operation.

[0012] In one embodiment, each set of the limiting components includes an abutment plate and a plurality of first movable rods. The plurality of first movable rods pass through the clamping arm of the clamping component. The end of the plurality of first movable rods near the conical concrete is hinged to the abutment plate, and the end away from the conical concrete is provided with a limiting block. Each of the plurality of first movable rods is fitted with an elastic element. One end of the elastic element is connected to the clamping arm, and the other end is connected to the abutment plate.

[0013] In one embodiment, each group of defined components further includes multiple first support rods and multiple telescopic rods. The multiple telescopic rods are all installed in corresponding sliding grooves. The sliding grooves are located on the side of the clamping arm near the conical concrete. The telescopic ends of the multiple telescopic rods are all hinged to one end of the first support rod, and the other end of the first support rod is hinged to the abutment plate.

[0014] In one embodiment, the movable assembly includes multiple first connecting rods, second connecting rods, and second moving rods. The lower end of the second moving rod is connected to the middle of the second connecting rod. Both ends of the second connecting rod are respectively hinged to one end of the first connecting rod. The other end of the first connecting rod is hinged to the clamping arm. The upper end of the second moving rod passes through the center of the fixed plate and is connected to the lifting assembly. The surface of the second moving rod is provided with external threads.

[0015] In one embodiment, a transmission assembly is further included, comprising a first gear, a second gear, and a motor. The motor is mounted on the fixed plate, and its output end is connected to the first gear. The first gear meshes with the second gear. The second gear is sleeved on the second moving rod of the moving assembly. A sleeve is provided between the second gear and the second moving rod. The sleeve has an internal thread that mates with the external thread of the second moving rod near its inner wall. The second gear is rotatably mounted on the fixed plate.

[0016] In one embodiment, the lifting assembly includes a lifting cylinder mounted on the fixed plate by a plurality of second support rods, and the top of the lifting cylinder is provided with lifting lugs.

[0017] In one embodiment, the upper end of the second moving rod extends into the hanging cylinder.

[0018] In one embodiment, the angle between the clamping arm and the vertical position is in the range of -2° to 7°.

[0019] Compared with the prior art, the advantages of this utility model are that by designing a clamping component and a moving component, the state of the clamping component can be adjusted by the moving component, so as to quickly clamp and lower the conical concrete. In conjunction with the lifting component, the use of the entire lifting fixture is convenient and the lifting efficiency is improved. Attached Figure Description

[0020] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the lifting clamp of this utility model in the working state;

[0022] Figure 2 This is a schematic diagram of the lifting clamp of this utility model in a non-working state;

[0023] Figure 3 yes Figure 1 A schematic diagram of part A;

[0024] Figure 4 yes Figure 1 A schematic diagram of Part B;

[0025] Figure label:

[0026] 1. Fixed plate; 2. Lifting assembly; 201. Lifting cylinder; 202. Second support rod; 203. Lifting lug; 3. Clamping assembly; 301. Clamping arm; 302. Baffle; 303. Base plate; 4. Moving assembly; 401. First connecting rod; 402. Second connecting rod; 403. Second moving rod; 5. Conical concrete; 6. Sliding groove; 7. Limiting assembly; 701. Abutment plate; 702. First support rod; 703. Telescopic rod; 704. First moving rod; 705. Elastic element; 706. Limiting block; 8. Transmission assembly; 801. First gear; 802. Second gear; 803. Motor. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Please refer to Figures 1 to 4This utility model provides a hoisting fixture for conical concrete, comprising: a fixed plate 1 for stabilizing the entire hoisting fixture; multiple clamping components 3 symmetrically arranged at both ends of the fixed plate 1 and hinged to both ends of the fixed plate 1, the multiple clamping components 3 working together to clamp the conical concrete 5; a moving component 4 mounted on the fixed plate 1 and hinged to the multiple clamping components 3, the moving component 4 adjusting the distance between the multiple clamping components 3 during the operation of the hoisting fixture to clamp the conical concrete 5; and a lifting component 2 mounted on the top of the fixed plate 1 and connected to the moving component 4, the lifting component 2 providing lifting points for the hoisting operation of the hoisting fixture.

[0029] In this embodiment, there are two clamping components 3, which are symmetrically arranged on both sides of the fixing plate 1 and are hinged to the fixing plate 1.

[0030] To better implement this utility model, refer to Figure 1 In one embodiment, each clamping assembly 3 includes a clamping arm 301, a baffle 302, and a base plate 303. The upper part of the clamping arm 301 is hinged to the fixing plate 1, and the lower end of the clamping arm 301 is provided with a base plate 303. The base plate 303 is perpendicular to the plane where the two clamping arms 301 are located, and the base plates 303 connected to the bottom of the two clamping arms 301 are symmetrically arranged. Both ends of the base plate 303 are provided with baffles 302. The opening end formed by the base plate 303 and the baffles 302 at both ends faces the conical concrete 5. The length of the base plate 303 is greater than or equal to the width of the conical concrete 5, ensuring that the conical concrete 5 can be stably lifted by the base plate 303 during the clamping and hoisting process. The angle between the clamping arm 301 and the vertical position is within the range of -2° to 7°. A positive value indicates that the clamping arm 301 is tilted away from the conical concrete 5, meaning that the two clamping arms 301 of the entire lifting fixture are in an open state. A negative value indicates that the clamping arm 301 is tilted closer to the conical concrete 5, meaning that the two clamping arms 301 of the entire lifting fixture are in a state of clamping the conical concrete 5. For example... Figure 2 The image shows the clamping arm 301 of the lifting fixture when it is not in operation. Figure 1 This describes the condition of the clamping arm 301 when the lifting fixture is in operation.

[0031] To better implement this utility model, refer to Figure 1 and Figure 3In one embodiment, the system further includes multiple sets of limiting components 7, which are respectively installed on multiple clamping components 3 to ensure the stability of the conical concrete 5 after lifting when the lifting fixture is working. In this embodiment, there are two sets of limiting components 7, which are symmetrically arranged on the clamping arms 301 of the clamping components 3 when the conical concrete 5 is clamped. When the lifting fixture clamps the conical concrete 5, the limiting components 7 located on the clamping components 3 will work together to further stabilize the conical concrete 5.

[0032] Each set of limiting components 7 includes an abutment plate 701 and multiple first moving rods 704. The multiple first moving rods 704 pass through the clamping arm 301 of the clamping component 3. The end of the multiple first moving rods 704 near the conical concrete 5 is hinged to the abutment plate 701, and the end away from the conical concrete 5 is provided with a limiting block 706. Each of the multiple first moving rods 704 is fitted with an elastic element 705. One end of the elastic element 705 is connected to the clamping arm 301, and the other end is connected to the abutment plate 701. In this embodiment, there are two first moving rods 704.

[0033] Each set of defined components 7 also includes multiple first support rods 702 and multiple telescopic rods 703. The multiple telescopic rods 703 are symmetrically arranged on the upper and lower sides of the two first moving rods 704. The multiple telescopic rods 703 are all installed in corresponding sliding grooves 6. The sliding grooves 6 are located on the side of the clamping arm 301 near the conical concrete 5. The telescopic ends of the multiple telescopic rods 703 are all hinged to one end of the first support rod 702, and the other end of the first support rod 702 is hinged to the abutment plate 701. In this embodiment, there are two first support rods 702 and two telescopic rods 703, and the first support rods 702, telescopic rods 703 and first moving rods 704 are all symmetrically arranged.

[0034] Initially, the elastic element 705 is in its original state. During the lifting process of the hoisting clamp on the conical concrete 5, the abutment plate 701 will abut against the inclined side of the conical concrete 5, thereby causing the first moving rod 704 to move outwards towards the clamping arm 301. The movement of the first moving rod 704 compresses the elastic element 705 between the abutment plate 701 and the clamping arm 301. Under the elastic force of the elastic element 705, the abutment plates 701 on both sides of the conical concrete 5 further clamp the conical concrete 5, stabilizing it and preventing it from tilting due to vibrations during hoisting, which could cause personal injury to construction workers. To further stabilize the abutment plate 701, when it abuts against the side wall of the conical concrete 5, the abutment plate 701 will tilt, and the extension lengths of the two first moving rods 704 will not be consistent. Figure 3In the state shown, the first support rod 702 hinged to the lower end of the abutment plate 701 will drive the telescopic rod 703 to extend. The extension length of the telescopic rod 703 located on the lower side of the first moving rod 704 will be longer than the extension length of the telescopic rod 703 on the upper side.

[0035] To better implement this utility model, refer to Figure 1 and Figure 4 In one embodiment, the moving assembly 4 includes multiple first connecting rods 401, second connecting rods 402, and second moving rods 403. The lower end of the second moving rod 403 is connected to the middle of the second connecting rod 402. Both ends of the second connecting rod 402 are hinged to one end of the first connecting rod 401, and the other end of the first connecting rod 401 is hinged to the clamping arm 301. The upper end of the second moving rod 403 passes through the center of the fixed plate 1 and is connected to the lifting assembly 2. Each clamping arm 301 is hinged to the second connecting rod 402 via at least one first connecting rod 401, and the first connecting rod 401 connected to each clamping arm 301 is located on both sides of the second connecting rod 402 and is hinged to the second connecting rod 402. In this embodiment, each clamping arm 301 is only hinged to one first connecting rod 401, which in turn is hinged to the second connecting rod 402. When the second moving rod 403 moves up and down, it drives the second connecting rod 402 to move, thereby driving the first connecting rod 401 and the clamping arm 301 to move. The clamping arm 301 drives the bottom plate 303 connected at the lower end to move from the outside to the inside, lifting the conical concrete 5. The surface of the second moving rod 403 is provided with external threads.

[0036] To better implement this utility model, refer to Figure 1 and Figure 4 In one embodiment, the lifting clamp further includes a transmission assembly 8, which includes a first gear 801, a second gear 802, and a motor 803. The motor 803 is mounted on the fixed plate 1, and the output end of the motor 803 is connected to the first gear 801. The first gear 801 meshes with the second gear 802. The second gear 802 is sleeved on the second moving rod 403. A sleeve is provided between the second gear 802 and the second moving rod 403. The inner wall of the sleeve near the second moving rod 403 is provided with an internal thread that mates with the external thread of the second moving rod 403. The second gear 802 is rotatably mounted on the fixed plate 1.

[0037] To better implement this utility model, refer to Figure 1 and Figure 2In one embodiment, the lifting assembly 2 includes a lifting cylinder 201, which is mounted on a fixed plate 1 via multiple second support rods 202. A lifting lug 203 is provided at the top of the lifting cylinder 201. The lifting cylinder 201 is hollow inside, and the upper end of a second moving rod 403 extends into the lifting cylinder 201. The second moving rod 403 can move inside the lifting cylinder 201. To prevent the second moving rod 403 from moving out of the lifting cylinder 201, a limiting member is provided at the end of the second moving rod 403.

[0038] Furthermore, to ensure the connection between the lifting cylinder 201 and the second moving rod 403, an internal thread that mates with the external thread of the second moving rod 403 can be provided at the lower inlet of the lifting cylinder 201, so that the second moving rod 403 can move inside the lifting cylinder 201.

[0039] The working principle of the above-mentioned conical concrete hoisting clamp is as follows:

[0040] First, the base plate 303 of the lifting clamp is moved to both sides of the bottom of the conical concrete 5. The output end of the motor 803 drives the first gear 801 to rotate. The first gear 801 meshes with the second gear 802, driving the second gear 802 to rotate. The second gear 802 drives the internal sleeve to rotate. The internal thread of the sleeve engages with the external thread of the second moving rod 403, causing the second moving rod 403 to move towards the inside of the lifting cylinder 201. The second moving rod 403 drives one end of the second connecting rod 402 and the first connecting rod 401 to move upward, thereby gradually reducing the angle between the two clamping arms 301. The base plate 303 gradually positions itself at the bottom of the conical concrete 5, lifting the conical concrete 5. Throughout the process... The abutment plate 701 gradually comes into contact with the inclined sidewall of the conical concrete 5. The conical concrete 5 presses against the abutment plates 701 on both sides, and the abutment plates 701 press against the first moving rod 704, moving it outward towards the clamping arm 301. This, in turn, presses against the elastic element 705 between the abutment plate 701 and the clamping arm 301. The elastic force of the elastic element 705 allows the abutment plates 701 on both sides of the conical concrete 5 to further stabilize the conical concrete 5. As the abutment plates 701 move and tilt at an angle compared to their initial state, the angle between the abutment plates 701 and the first support rods 702 at both ends will change, causing the first support rods 702 to drive the telescopic rods 703 to extend and retract, further stabilizing the abutment plates 701. After the clamping arm 301 moves into position, the motor 803 is turned off, and the crane lifts the entire lifting fixture through the lifting lugs 203, thereby lifting the conical concrete 5.

[0041] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A hoisting clamp for conical concrete, characterized in that, include: A fixing plate, which is used to stabilize the entire lifting clamp; Multiple clamping components are symmetrically arranged at both ends of the fixed plate and respectively hinged to both ends of the fixed plate. The multiple clamping components work together to clamp the conical concrete. A movable component is mounted on the fixed plate and is hinged to a plurality of clamping components. When the lifting fixture is in operation, the movable component adjusts the distance between the plurality of clamping components to clamp the conical concrete. A lifting assembly is mounted on top of the fixed plate and connected to the moving assembly. The lifting assembly is used to provide lifting points for the lifting operation of the lifting clamp.

2. The hoisting clamp for conical concrete according to claim 1, characterized in that, Each of the clamping components includes a clamping arm, a baffle, and a base plate. The upper part of the clamping arm is hinged to the fixed plate, and the lower end of the clamping arm is provided with the base plate. Both ends of the base plate are provided with the baffle.

3. The hoisting clamp for conical concrete according to claim 1, characterized in that, It also includes multiple sets of limiting components, which are respectively installed on multiple clamping components to ensure the stability of the conical concrete after it is lifted when the lifting clamp is working.

4. The hoisting clamp for conical concrete according to claim 3, characterized in that, Each set of the limiting components includes an abutment plate and multiple first movable rods. The multiple first movable rods pass through the clamping arm of the clamping component. The end of the multiple first movable rods near the conical concrete is hinged to the abutment plate, and the end away from the conical concrete is provided with a limiting block. Each of the multiple first movable rods is fitted with an elastic element. One end of the elastic element is connected to the clamping arm, and the other end is connected to the abutment plate.

5. The hoisting clamp for conical concrete according to claim 4, characterized in that, Each set of defined components also includes multiple first support rods and multiple telescopic rods. The multiple telescopic rods are all installed in corresponding sliding grooves. The sliding grooves are located on the side of the clamping arm near the conical concrete. The telescopic ends of the multiple telescopic rods are all hinged to one end of the first support rod, and the other end of the first support rod is hinged to the abutment plate.

6. The hoisting clamp for conical concrete according to claim 1, characterized in that, The moving assembly includes multiple first connecting rods, second connecting rods, and second moving rods. The lower end of the second moving rod is connected to the middle of the second connecting rod. Both ends of the second connecting rod are respectively hinged to one end of the first connecting rod. The other end of the first connecting rod is hinged to the clamping arm. The upper end of the second moving rod passes through the center of the fixed plate and is connected to the lifting assembly. The surface of the second moving rod is provided with external threads.

7. The hoisting clamp for conical concrete according to claim 1, characterized in that, It also includes a transmission assembly, which includes a first gear, a second gear, and a motor. The motor is mounted on the fixed plate, and the output end of the motor is connected to the first gear. The first gear meshes with the second gear. The second gear is sleeved on the second moving rod of the moving assembly. A sleeve is provided between the second gear and the second moving rod. The inner wall of the sleeve near the second moving rod is provided with an internal thread that mates with the external thread of the second moving rod. The second gear is rotatably mounted on the fixed plate.

8. The hoisting clamp for conical concrete according to claim 6, characterized in that, The lifting assembly includes a lifting cylinder, which is mounted on the fixed plate by multiple second support rods, and the top of the lifting cylinder is provided with lifting lugs.

9. The hoisting clamp for conical concrete according to claim 8, characterized in that, The upper end of the second moving rod extends into the lifting cylinder.

10. The hoisting clamp for conical concrete according to claim 2, characterized in that, The angle between the clamping arm and the vertical position is in the range of -2° to 7°.

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