Precast concrete member lifting appliance

Abstract

The utility model provides a prefabricated concrete member lifting appliance which is used for lifting a prefabricated member with a lifting rod main body embedded, a clamping block is arranged at the end part of the lifting rod main body, and the lifting appliance comprises a lifting ring, a connecting frame and a propelling block. A connecting ring is arranged at the end of the hanging ring, a connecting sleeve is arranged at one end of the connecting frame, the connecting ring movably penetrates through the connecting sleeve, two supporting frames which are oppositely arranged are arranged at the other end of the connecting frame, the two supporting frames form a gap for containing the hanging rod body, the clamping block is clamped on the inner sides of the two supporting frames, and the pushing block is arranged in the two supporting frames in a sliding mode along the axis of the pushing block. The pushing block is driven by the pushing assembly to slide, and the pushing block can abut against the clamping block. According to the lifting appliance, the pushing block can abut against the clamping block to limit the position of the clamping block, so that the clamping block cannot be separated from the supporting frame when a lifted prefabricated part shakes, the prefabricated part is effectively prevented from falling off in the lifting process, and the safety in the construction process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a sling for precast concrete components. Background Art

[0002] Precast concrete components usually have a large deadweight and are mostly installed by hoisting. Precast concrete component hoisting scenarios include demoulding and transportation during the component production stage, and flipping and installation during the on-site construction stage. The method of lifting with embedded hangers and special hoists is the most commonly used precast concrete lifting technology in actual engineering applications due to its fast lifting, safety and reliability.

[0003] For example, the Chinese utility model patent with patent number 202222305366.2 provides a sling with a T-type suspension rod, including a sling body and a suspension ring arranged on the sling body, the sling body is provided with a T-shaped slot for clamping the T-type suspension rod, the T-shaped slot is provided with a limiting groove for limiting the T-shaped clamping head of the T-type suspension rod, and the outer wall of the sling body is provided with a positioning ring. The limiting groove arranged inside the T-shaped slot prevents the T-shaped clamping head from moving horizontally and falling off after the T-shaped clamping head is clamped in.

[0004] However, when the existing hoist is lifting the boom, if the object being lifted shakes, the clamp at the end of the boom is likely to move out of the limit groove, which may still easily cause the boom to detach from the hoist, thereby causing a safety accident. In view of this, a precast concrete component hoist is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model proposes a precast concrete component hoist to solve the technical problem that if the object being hoisted shakes during the hoisting process of the existing hoist proposed in the above background technology, the hoisting rod may easily fall off the hoist, thereby causing a safety accident.

[0006] To achieve the above object, the utility model provides the following technical solution: a precast concrete component hoist, used for hoisting a precast component with a pre-embedded hanger body, wherein a clamping block is provided at the end of the hanger body, comprising:

[0007] A lifting ring, wherein a connecting ring is provided at the end of the lifting ring;

[0008] A connecting frame, one end of which is provided with a connecting sleeve, the connecting ring is movably inserted into the connecting sleeve, the other end of the connecting frame is provided with two groups of supporting frames arranged opposite to each other, the two groups of supporting frames form a gap for accommodating the main body of the boom, and the clamping block is clamped inside the two groups of supporting frames; and

[0009] The propulsion block is slidably arranged in the two groups of the support frames along its axis, and is connected to the connecting frame through a propulsion assembly. The propulsion block is driven to slide by the propulsion assembly, and the propulsion block can abut against the clamping block.

[0010] In a preferred embodiment, the inner sides of the two groups of support frames are provided with card slots, and the card blocks are mounted in the two groups of card slots.

[0011] In a preferred embodiment, the propulsion assembly comprises:

[0012] A mounting seat, fixedly arranged on the connecting frame, and a mounting groove is provided on the mounting seat;

[0013] an adjusting wheel, rotatably disposed in the mounting groove along its axis, the adjusting wheel being provided with an internal thread; and

[0014] The screw rod is slidably arranged in the mounting seat along its axis and is threadedly connected with the internal thread of the adjusting wheel. The pushing block is arranged at one end of the screw rod facing the two groups of support frames.

[0015] In a preferred embodiment, a limiting ridge is provided on the mounting seat, a limiting groove is provided on the circumference of the screw rod along its axis, and the screw rod is slidably clamped on the limiting ridge through the limiting groove.

[0016] In a preferred embodiment, the mounting seat and the connecting frame are integrally cast.

[0017] In a preferred embodiment, a receiving cavity is provided at the bottom of the mounting seat, and the propulsion block can be clamped in the receiving cavity.

[0018] In a preferred embodiment, anti-slip grooves are provided on the circumference of the adjusting wheel.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] When the hoist is in use, one end of the main body of the boom is embedded in the prefabricated component to be hoisted, and the lifting ring is connected to the hook of the hoisting equipment, so that the block on the main body of the boom is clamped in the two sets of support frames, and the hoisting work can be carried out. The installation is convenient and quick. Before hoisting, the propulsion block can be driven to slide through the propulsion assembly so that the propulsion block abuts against the block to limit the position of the block, so that the block will not be separated from the support frame when the prefabricated component is shaken, thereby effectively preventing the prefabricated component from falling off during the hoisting process, and improving the safety during the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0022] Figure 1 A three-dimensional structural schematic diagram of a precast concrete component hanger provided by the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of a connecting frame in a precast concrete component hanger of the utility model. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the structure of a connecting frame in a precast concrete component hanger of the utility model. Figure 2 ;

[0025] Figure 4 This is a structural schematic diagram of an abutment block in a precast concrete component hanger of the utility model;

[0026] Reference numerals:

[0027] 101. lifting ring; 102. connecting ring;

[0028] 201, connecting frame; 202, connecting sleeve; 203, mounting seat; 204, mounting groove; 205, limiting ridge; 206, accommodating cavity; 207, supporting frame; 208, card slot;

[0029] 301, screw rod; 302, push block; 303, limit groove;

[0030] 401, adjusting wheel;

[0031] 501, boom body; 502, clamping block. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0033] Example:

[0034] like Figure 1 , 2As shown in Figure 3, the utility model provides a precast concrete component hoist, which is used to lift a precast component with a suspension rod body 501 embedded in it. A clamping block 502 is arranged at the end of the suspension rod body 501, including a lifting ring 101, a connecting ring 102 is arranged at the end of the lifting ring 101, and also includes a connecting frame 201. A connecting sleeve 202 is arranged at one end of the connecting frame 201, and the connecting ring 102 is movably inserted in the connecting sleeve 202. Two groups of supporting frames 207 arranged opposite to each other are arranged at the other end of the connecting frame 201. The two groups of supporting frames 207 form a gap to accommodate the suspension rod body 501, and the clamping block 502 is clamped on the inner side of the two groups of supporting frames 207.

[0035] During use, the main body 501 of the suspension rod disclosed in the prior art is embedded in the prefabricated component, and the block 502 at the end thereof is exposed outside the prefabricated component. By connecting the lifting ring 101 with the hook of the lifting device, and clamping the two sets of support frames 207 on the block 502, the prefabricated component can be lifted by the cooperation between the support frames 207 and the block 502. The inner sides of the two sets of support frames 207 are provided with a clamping groove 208, and the block 502 is clamped in the two sets of clamping grooves 208. The provision of the clamping groove 208 can prevent the block 502 from sliding horizontally in the support frame 207 and detaching from the suspension device, thereby improving the stability and safety of lifting.

[0036] like Figure 1 , 3 As shown in Figures 4 and 5, in this embodiment, a push block 302 is slidably arranged in the two groups of support frames 207, and the push block 302 is connected to the connecting frame 201 through a push assembly. The push block 302 is driven to slide by the push assembly, and the push block 302 can abut against the clamping block 502. The push assembly includes a mounting seat 203 fixedly arranged on the connecting frame 201, and a mounting groove 204 is provided on the mounting seat 203. An adjusting wheel 401 is rotatably arranged in the mounting groove 204, and an internal thread is arranged on the adjusting wheel 401. A screw rod 301 is slidably arranged in the mounting seat 203, and the screw rod 301 is screwed with the internal thread of the adjusting wheel 401. The push block 302 is arranged at one end of the screw rod 301 facing the two groups of support frames 207.

[0037] Among them, the mounting seat 203 is provided with a limited ridge 205, and the screw rod 301 is provided with a limited groove 303 along its axis. The screw rod 301 is slidably clamped on the limited ridge 205 through the limited groove 303. The screw rod 301 is positioned by the cooperation of the limited ridge 205 and the limited groove 303, so that the screw rod 301 can only slide along its axis. By rotating the adjusting wheel 401, the adjusting wheel 401 is provided with anti-skid patterns on its circumference, so that the adjusting wheel 401 can be rotated more labor-savingly. Under the cooperation of the internal thread of the adjusting wheel 401 and the screw rod 301, the screw rod 301 is driven to slide along its axis, and the position of the screw rod 301 is self-locked, so as to drive the propulsion block 302 to slide along the axis of the screw rod 301 until the propulsion block 302 abuts against the clamping block 502, and the clamping block 502 is limited, so as to prevent the clamping block 502 from detaching from the support frame 207 during the shaking of the prefabricated component, and further improve the safety during the lifting process.

[0038] like Figure 1 , 2 As shown, in this embodiment, the mounting seat 203 and the connecting frame 201 are integrally cast to increase the stability of the sling and effectively improve the service life of the sling. A receiving cavity 206 is provided at the bottom of the mounting seat 203, and the push block 302 can be clamped in the receiving cavity 206. Reverse rotation of the adjusting wheel 401 can cause the push block 302 to be retracted into the receiving cavity 206, thereby avoiding affecting the installation and disassembly of the sling body 501.

[0039] Specific usage and beneficial effects of the utility model:

[0040] When the hoist is in use, one end of the main body 501 of the suspender rod is embedded in the prefabricated component to be lifted, and the lifting ring 101 is connected to the hook of the lifting device, so that the block 502 on the main body 501 of the suspender rod is clamped in the two sets of support frames 207, and the lifting work can be carried out, and the installation is convenient and quick. Before lifting, the screw rod 301 can be driven to slide along its axis by rotating the adjusting wheel 401, thereby driving the push block 302 to slide, so that the push block 302 abuts against the block 502, so as to limit the position of the block 502, so that the block 502 of the lifted prefabricated component will not be separated from the support frame 207 when the prefabricated component is shaken, thereby effectively preventing the prefabricated component from falling off during the lifting process, and improving the safety during the construction process.

[0041] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A precast concrete component hoist, used for hoisting a precast component with a pre-embedded hoisting rod body (501), wherein a clamping block (502) is provided at the end of the hoisting rod body (501), characterized in that: Included are: A lifting ring (101), wherein a connecting ring (102) is provided at the end of the lifting ring (101); A connecting frame (201) is provided with a connecting sleeve (202) at one end, the connecting ring (102) is movably inserted into the connecting sleeve (202), and the other end of the connecting frame (201) is provided with two groups of supporting frames (207) arranged opposite to each other, the two groups of supporting frames (207) form a gap for accommodating the boom body (501), and the clamping block (502) is clamped inside the two groups of supporting frames (207); and The propulsion block (302) is slidably arranged along its axis in the two groups of support frames (207), and is connected to the connection frame (201) via a propulsion assembly. The propulsion block (302) is driven to slide by the propulsion assembly, and the propulsion block (302) can abut against the clamping block (502).

2. A precast concrete component hanger according to claim 1, characterized in that: The inner sides of the two groups of support frames (207) are both provided with card slots (208), and the card blocks (502) are carded in the two groups of card slots (208).

3. A precast concrete component hanger according to claim 1, characterized in that: The propulsion assembly comprises: A mounting seat (203) is fixedly arranged on the connecting frame (201), and a mounting groove (204) is provided on the mounting seat (203); An adjusting wheel (401) is rotatably arranged in the installation groove (204) along its axis, and an internal thread is arranged on the adjusting wheel (401); and The screw rod (301) is slidably arranged in the mounting seat (203) along its axis and is threadedly connected with the internal thread of the adjusting wheel (401). The pushing block (302) is arranged at one end of the screw rod (301) facing the two groups of support frames (207).

4. A precast concrete component hanger according to claim 3, characterized in that: A limiting ridge (205) is provided on the mounting seat (203), a limiting groove (303) is provided on the circumferential side of the screw rod (301) along its axis, and the screw rod (301) is slidably clamped on the limiting ridge (205) through the limiting groove (303).

5. The precast concrete component hanger according to claim 3, characterized in that: The mounting seat (203) and the connecting frame (201) are integrally cast.

6. The precast concrete component hanger according to claim 3, characterized in that: The bottom of the mounting seat (203) is provided with a receiving cavity (206), and the propulsion block (302) can be clamped in the receiving cavity (206).

7. The precast concrete component hanger according to claim 3, characterized in that: The circumference of the adjusting wheel (401) is provided with anti-slip grooves.

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