Arc-shaped scissor hoisting head fixture

Abstract

The utility model relates to the technical field of hoisting tools, and discloses an arc-shaped scissor hoisting head fixture, which comprises a support disc, the protection mechanism is fixedly mounted at the top of the supporting disc, and the protection mechanism is used for detecting the weight of the hoisted workpiece and giving an alarm when the workpiece is overloaded; and the arc-shaped hoisting mechanism is arranged on the supporting disc, and the arc-shaped hoisting mechanism is used for clamping the cylindrical workpiece. Through the design of the weighing sensor, the weight applied to the bearing frame by a hoisted object can be detected, if the weight exceeds a preset value, it is indicated that the hoisted object is overloaded, and then the warning lamp is controlled to work and give out warning light to prompt an operator to stop hoisting operation in time; the problem that overloaded workpieces are prone to falling in the hoisting process is solved, safety of other equipment within the hoisting operation range is guaranteed, and safety during hoisting is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoist tool technical field, specifically, relate to an arc scissor hoist head fixture. BACKGROUND

[0002] Hoisting refers to the installation, positioning of equipment by crane or hoisting mechanism, and in the process of inspection or maintenance, hoisting machines are used to hoist equipment, workpieces, tools, materials and other objects to change their positions. Hoist head fixture is a tool widely used in hoisting operations, commonly known as universal lifting clamp, hoisting fixture or lifting clamp. It has the characteristics of simple structure, convenient use, safety and reliability, and is widely used in construction sites, logistics and warehousing, and port terminals.

[0003] The existing hoist head fixture does not have an overload alarm function, and it is difficult to weigh the object during construction. If the weight of the hoisted object is too large and exceeds the stable hoisting range, it is easy to fall off during hoisting, which poses a serious threat to the safety of nearby equipment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an arc scissor hoist head fixture to solve the problem of weight detection of hoisted objects and corresponding alarm implementation in the prior art.

[0005] The utility model provides the following technical scheme: an arc scissor hoist head fixture, comprising:

[0006] A support disc;

[0007] A protection mechanism fixedly installed on the top of the support disc, which is used for weight detection of hoisted workpieces and alarm when overloaded;

[0008] An arc hoisting mechanism arranged on the support disc, which is used for clamping cylindrical workpieces;

[0009] A convenient replacement mechanism arranged on the arc hoisting mechanism, which is used for conveniently replacing the clamping piece by the user.

[0010] As a preferred embodiment of the above technical scheme, the protection mechanism comprises a flat plate fixedly installed on the top of the support disc, a weighing sensor fixedly installed on the bottom of the flat plate, a receiving frame fixedly installed on the bottom of the weighing sensor, a support frame fixedly installed on the outer wall of the receiving frame, and an ear fixedly installed on the top of the support frame.

[0011] Through the above technical scheme, the weight of the hoisted object can be detected by the weighing sensor, which facilitates the implementation of the alarm work.

[0012] As the above technical scheme is preferred, the top of the flat panel is fixedly installed with a battery compartment, the top of the flat panel is fixedly installed with a controller, and the top of the flat panel is fixedly installed with a warning light.

[0013] Through the above technical scheme, through the design of the controller and the warning light, whether the hoisted object is overloaded can be judged and light warning can be implemented when overloaded.

[0014] As the above technical scheme is preferred, the arc-shaped hoisting mechanism comprises a rotating piece and an arc-shaped clamping arm, the rotating piece is rotatably connected to the inner wall of the support disc, a steel cable is fixedly installed on the outer wall of the rotating piece, and a rotating block is fixedly connected to the end of the steel cable away from the rotating piece.

[0015] Through the above technical scheme, through the design of the arc-shaped clamping arm, the cylindrical object can be stably clamped.

[0016] As the above technical scheme is preferred, a scissor arm is rotatably connected to the outer wall of the rotating block, the number of the scissor arms is two, and the two scissor arms are rotatably connected.

[0017] Through the above technical scheme, through the design of the scissor arm, the object can be clamped by the force of the object itself.

[0018] As the above technical scheme is preferred, the convenient replacement mechanism comprises an assembly reference frame, the assembly reference frame is fixedly installed at the end of the scissor arm, an assembly block is movably inserted into the inner cavity of the assembly reference frame, square holes are formed in the assembly reference frame and the assembly block, square rods are movably inserted into the inner cavities of the square holes, positioning notches are formed in the top of the square rods, and the assembly block is fixedly installed on the outer wall of the arc-shaped clamping arm.

[0019] Through the above technical scheme, through the connection relationship design of the assembly reference frame and the assembly block, the arc-shaped clamping arm can be disassembled and replaced by the user.

[0020] As the above technical scheme is preferred, a protruding block is fixedly installed on the back of the assembly reference frame, an elastic piece is fixedly installed at the bottom of the protruding block, a positioning clamping frame is fixedly installed at the bottom of the elastic piece, a limiting rod is fixedly installed at the top of the protruding block, and the outer wall of the limiting rod is slidably connected with the inner wall of the positioning clamping frame.

[0021] Through the above technical scheme, through the design of the protruding block, the elastic piece, the positioning clamping frame and the limiting rod, the four square rods can be positioned or released simultaneously.

[0022] Compared with the prior art, the utility model has the advantages of:

[0023] The utility model discloses a weighing sensor's design can detect the weight that the object of being hoisted is exerted to the receiving frame, if the weight exceeds the preset value, the object of being hoisted appears the overload situation, controls warning light work immediately, sends warning light, prompts operator to suspend this hoisting operation in time, avoids the workpiece of hoisting process overloading and easily falling down, guarantees the safety of other equipment in hoisting operation range, increases the safety of hoisting. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the perspective drawing of the utility model;

[0025] Figure 2 It is the structural schematic diagram of the arc hoisting mechanism of the utility model;

[0026] Figure 3 It is the structural schematic diagram of the protection mechanism of the utility model;

[0027] Figure 4 It is the structural schematic diagram of the convenient replacement mechanism of the utility model;

[0028] Figure 5 It is the back structure schematic diagram of the assembly reference frame of the utility model.

[0029] In the drawing: 1, support disc;2, protection mechanism;21, plane board;22, weighing sensor;23, receiving frame;24, support frame;25, lifting lug;26, battery compartment;27, controller;28, warning light;3, arc hoisting mechanism;31, rotating piece;32, steel cable;33, rotating block;34, scissors arm;35, arc clamping arm;4, convenient replacement mechanism;41, assembly reference frame;411, protruding block;412, elastic piece;413, limiting rod;414, positioning clamping frame;42, assembly block;43, square hole;44, square rod;45, positioning gap. DETAILED DESCRIPTION

[0030] The technical scheme in the utility model embodiment will be clearly and completely described below with the drawings in the utility model embodiment.

[0031] As Figures 1-5 The utility model provides a kind of technical scheme: a kind of arc-shaped scissors hoisting head fixture, comprising:

[0032] Support disc 1;

[0033] Protection mechanism 2, protection mechanism 2 is fixedly installed at the top of support disc 1, and protection mechanism 2 is used to detect the weight of hoisting workpiece and send alarm when overload;

[0034] Arc hoisting mechanism 3, arc hoisting mechanism 3 is arranged on support disc 1, and arc hoisting mechanism 3 is used for the clamping of cylindrical workpiece.

[0035] The convenient replacement mechanism 4 is arranged on the arc-shaped hoisting mechanism 3, and is used for conveniently replacing the card piece by a user.

[0036] As an embodiment in the embodiment, as shown in Figure 3 The protection mechanism 2 includes a plane plate 21 fixedly installed on the top of the support disc 1, a weighing sensor 22 fixedly installed on the bottom of the plane plate 21, a receiving frame 23 fixedly installed on the bottom of the weighing sensor 22, a support frame 24 fixedly installed on the outer wall of the receiving frame 23, a lifting lug 25 fixedly installed on the top of the support frame 24, a battery compartment 26 fixedly installed on the top of the plane plate 21, a controller 27 fixedly installed on the top of the plane plate 21, and a warning light 28 fixedly installed on the top of the plane plate 21. Before the arc-shaped hoisting mechanism 3 hoists the object as a whole, the weighing sensor 22 and the controller 27 are both existing structures, the model of the weighing sensor 22 is H3-C3-1.5t-3B, the weighing sensor 22 can detect the weight applied to the receiving frame 23 by the hoisted object and feed back the weight data to the controller 27, if the weight exceeds the preset value, it indicates that the hoisted object is overloaded, the controller 27 controls the warning light 28 to work immediately, emits warning light, and prompts the operator to suspend the hoisting operation in time. The inside of the battery compartment 26 is provided with a battery main body, which is used for power supply of the controller 27 and the warning light 28.

[0037] As an embodiment in the embodiment, as shown in Figure 2 The arc-shaped hoisting mechanism 3 includes a rotating piece 31 and an arc-shaped clamping arm 35, the rotating piece 31 is rotationally connected to the inner wall of the support disc 1, a steel cable 32 is fixedly installed on the outer wall of the rotating piece 31, a rotating block 33 is fixedly connected to the end of the steel cable 32 away from the rotating piece 31, a scissor arm 34 is rotationally connected to the outer wall of the rotating block 33, the number of the scissor arms 34 is two, and the two scissor arms 34 are rotationally connected. Through the shape design of the arc-shaped clamping arm 35, the cylindrical workpiece is hoisted conveniently, the arc-shaped clamping arm 35 is clamped on the outer wall of the object, the support disc 1 is lifted, the bottom ends of the two scissor arms 34 are rotated towards each other, the arc-shaped clamping arm 35 is clamped on the outer wall of the object, and the hoisting work is facilitated.

[0038] As an embodiment in the embodiment, as shown in Figure 4 , Figure 5As shown, the convenient replacement mechanism 4 comprises an assembly reference frame 41 fixedly installed at the end of the scissor arm 34, an assembly block 42 movably inserted into the inner cavity of the assembly reference frame 41, square holes 43 formed on the assembly reference frame 41 and the assembly block 42, a square rod 44 movably inserted into the inner cavities of the square holes 43, a positioning notch 45 formed at the top of the square rod 44, the assembly block 42 fixedly installed on the outer wall of the arc-shaped clamping arm 35, a protruding block 411 fixedly installed on the back of the assembly reference frame 41, an elastic member 412 fixedly installed at the bottom of the protruding block 411, a positioning clamping frame 414 fixedly installed at the bottom of the elastic member 412, a limiting rod 413 fixedly installed at the top of the protruding block 411, and the outer wall of the limiting rod 413 is in sliding connection with the inner wall of the positioning clamping frame 414. Different sizes of arc-shaped clamping arms 35 can be replaced to stably clamp different sizes of cylindrical workpieces. First, the positioning clamping frame 414 is pushed upwards to make the positioning clamping frame 414 withdrawn from the inside of the positioning notch 45, then the square rod 44 is pulled out from the square hole 43, the arc-shaped clamping arm 35 is replaced by pulling and inserting the assembly block 42 in the assembly reference frame 41, then the square rod 44 is reset and inserted, and then the positioning clamping frame 414 is loosened, and the positioning clamping frame 414 is clamped in the positioning notch 45 by the initial elastic force of the elastic member 412, that is, the replacement of the arc-shaped clamping arm 35 is completed.

[0039] Working principle: when in use, the hook is connected at the lifting lug 25 in advance, then the arc-shaped clamping arm 35 is clamped on the outer wall of the object, and then the whole support disc 1 is hoisted, the lever structure formed by the scissor arm 34 is tensioned by the self-gravity of the object, so that the bottom ends of the two scissor arms 34 rotate towards each other, the object is clamped on the inner wall of the arc-shaped clamping arm 35, the hoisting function is realized, and the weighing sensor 22 can detect the weight applied by the hoisted object to the receiving frame 23 and feed the weight data to the controller 27 during the hoisting of the object. If the weight exceeds the preset value, it indicates that the hoisted object is overloaded, the controller 27 controls the warning light 28 to work immediately, emits warning light, and prompts the operator to pause the hoisting operation in time, that is, the overload protection function is realized.

[0040] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them.

Claims

1. An arc shear tongs head clamp characterized by, Include: Supporting disc (1); Protection mechanism (2) is fixedly installed on the top of the supporting disc (1), which is used for weight detection of hoisting workpiece and alarm when overload; Arc hoisting mechanism (3) is arranged on the supporting disc (1), which is used for clamping cylindrical workpiece; Convenient replacement mechanism (4) is arranged on the arc hoisting mechanism (3), which is used for replacing the clamping piece.

2. A curved shear spreader jig according to claim 1, characterised in that: The protection mechanism (2) includes a flat plate (21) fixedly installed on the top of the supporting disc (1), a weighing sensor (22) fixedly installed at the bottom of the flat plate (21), a receiving frame (23) fixedly installed at the bottom of the weighing sensor (22), a support frame (24) fixedly installed on the outer wall of the receiving frame (23), and an ear (25) fixedly installed on the top of the support frame (24).

3. A curved shear spreader jig according to claim 2, characterised in that: The top of the flat plate (21) is fixedly installed with a battery compartment (26), a controller (27) and a warning light (28).

4. A curved shear spreader head fixture according to claim 1, wherein: The arc hoisting mechanism (3) includes a rotating piece (31) and an arc clamping arm (35), the rotating piece (31) is rotatably connected to the inner wall of the supporting disc (1), the outer wall of the rotating piece (31) is fixedly installed with a steel cable (32), and the end of the steel cable (32) away from the rotating piece (31) is fixedly connected with a rotating block (33).

5. A curved shear spreader head fixture according to claim 4, wherein: The outer wall of the rotating block (33) is rotatably connected with a scissors arm (34), the number of the scissors arm (34) is two, and the two scissors arms (34) are rotatably connected.

6. A curved shear spreader head fixture according to claim 5, wherein: The convenient replacement mechanism (4) includes an assembly reference frame (41) fixedly installed on the end of the scissors arm (34), an assembly block (42) movably inserted into the inner cavity of the assembly reference frame (41), square holes (43) formed in the assembly reference frame (41) and the assembly block (42), a square rod (44) movably inserted into the inner cavity of the square hole (43), a positioning gap (45) formed in the top of the square rod (44), and the assembly block (42) fixedly installed on the outer wall of the arc clamping arm (35).

7. A curved shear spreader head fixture according to claim 6, wherein: The back of the assembly reference frame (41) is fixedly installed with a protruding block (411), the bottom of the protruding block (411) is fixedly installed with an elastic member (412), the bottom of the elastic member (412) is fixedly installed with a positioning clamping frame (414), the top of the protruding block (411) is fixedly installed with a limiting rod (413), and the outer wall of the limiting rod (413) is slidably connected with the inner wall of the positioning clamping frame (414).

Images