Bidirectional clamping lifting appliance for constructional engineering

Abstract

The utility model relates to the technical field of clamping lifting appliances, and discloses a bidirectional clamping lifting appliance for constructional engineering, which comprises a lifting ring for lifting of a lifting hook, an upper clamping arm hinged on the lifting ring, a lower clamping arm hinged at the lower end of the upper clamping arm and two traction strips symmetrically arranged, a plurality of pin holes are formed in the traction strip, the traction strip is inserted into the sleeve rod in a sliding mode, a plurality of double-round-head sliding grooves are formed in the sleeve rod, a plug pin used for fixing the transversely-moving clamping arm and the traction strip penetrates through the transversely-moving clamping arm, the pin holes and the double-round-head sliding grooves in an inserted mode, and the plug pin, the transversely-moving clamping arm and the pin holes are fixedly connected. The transverse moving clamping arms are pulled to the maximum stroke of the double-round-head sliding groove, after a lifting hook is lifted, the lower clamping arms are hinged to pull the traction strips inwards relative to the sleeve rods under the action of weight, so that the rubber clamping blocks are clamped on the outer wall of a box, and the lower clamping arms clamp the box more tightly due to the counter-acting force of the weight of the box.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping slings, in particular to a bidirectional clamping sling for construction engineering. Background Art

[0002] Most existing lifting tools are hoisted by lifting rings. However, when lifting some boxes with flat surfaces, the lack of lifting rings makes lifting inconvenient. Therefore, the applicant proposes a lifting tool that is convenient for lifting. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, a two-way clamping hanger for construction engineering is provided, which solves the above problems.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A two-way clamping sling for construction engineering, comprising a lifting ring for hook lifting, an upper clamping arm hingedly provided on the lifting ring, a lower clamping arm hingedly provided at the lower end of the upper clamping arm, and the middle part of the lower clamping arm is hinged by a hinge shaft, and also comprises two symmetrically arranged traction bars, a plurality of pin holes are provided on the traction bars, the traction bars are slidably inserted into a sleeve rod, and a plurality of double round head slide grooves are provided on the sleeve rod, a pin for fixing the transverse clamping arm and the traction bar is inserted through the transverse clamping arm, the pin hole and the double round head slide groove, and the pin, the transverse clamping arm and the pin hole are fixed The hook is connected with the upper clamping arm by the hinged connection, and the upper clamping arm is connected with the lower clamping arm by the hinged connection, so that the end of the lower clamping arm is moved inward, thereby clamping the traction bar and the transverse clamping arm inward, so that the rigid clamping head fixed on the lower end of the transverse clamping arm is clamped on the outer wall or step surface of the box body for fixing. In this way, hoisting can be carried out without the action of a lifting ring, which is convenient and saves time.

[0006] Preferably, in order to improve the clamping force and anti-slip performance of the clamping surface, a rubber clamping block is fixedly provided on the clamping end surface of the rigid clamping head.

[0007] Preferably, the rigid clamping head is hinged to the transverse clamping arm.

[0008] The advantages and positive effects of the utility model are as follows: first, double round-headed slide grooves in appropriate positions are selected according to the size of the box, that is, the maximum distance between the two double round-headed slide grooves is larger than the size of the box, and the minimum distance between the two double round-headed slide grooves is smaller than the size of the box; when clamping, the transverse clamping arm is pulled to the maximum stroke of the double round-headed slide groove; when the hook is lifted, the lower clamping arm is hinged to pull the traction bar inward relative to the sleeve rod under the action of weight, so that the rubber clamping block is clamped on the outer wall of the box, and the reaction force of the weight of the box makes the lower clamping arm clamp tighter, thereby realizing rapid lifting within an appropriate weight, without the need for binding ropes or lifting rings, and being more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a structural schematic diagram of the utility model with the sleeve rod 19 removed.

[0012] The marks in the accompanying drawings are described as follows: 10, hook; 11, upper clamping arm; 12, lower clamping arm; 13, transverse clamping arm; 14, rigid clamping head; 15, rubber clamping block; 16, traction bar; 17, pin hole; 18, latch pin; 19, sleeve rod; 20, double round head slide groove; 21, lifting ring. DETAILED DESCRIPTION

[0013] Now, the utility model is further described in detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, so they only show the components related to the utility model. The following is a further detailed description of the embodiments of the utility model in conjunction with the accompanying drawings:

[0014] like Figure 1-2As shown, the utility model is a bidirectional clamping sling for construction engineering, including a lifting ring 21 for lifting a hook 10, an upper clamping arm 11 is hingedly provided on the lifting ring 21, a lower clamping arm 12 is hingedly provided at the lower end of the upper clamping arm 11, and the middle part of the lower clamping arm 12 is hinged by a hinge shaft, and also includes two symmetrically arranged traction bars 16, the traction bars 16 are provided with a plurality of pin holes 17, the traction bars 16 are slidably inserted into a sleeve rod 19, and the sleeve rod 19 is provided with a plurality of double round head slide grooves 20, and the pin 18 for fixing the transverse clamping arm 13 and the traction bar 16 is inserted through the transverse clamping arm 13 and the pin hole 17 and the double round head slide groove 20, and the pin 18 and the The transverse clamp arm 13 and the pin hole 17 are fixedly connected, and when the traction bar 16 moves laterally in the sleeve rod 19, it drives the transverse clamp arm 13 to move to achieve clamping or loosening, wherein the lower end of the lower clamp arm 12 is hinged to the end of the traction bar 16, and when the hook 10 lifts the upper clamp arm 11, the lower clamp arm 12 is pulled under the action of weight, so that the end of the lower clamp arm 12 moves inward, and then the traction bar 16 and the transverse clamp arm 13 are clamped inward, so that the rigid clamping head 14 fixed at the lower end of the transverse clamp arm 13 is clamped on the outer wall or step surface of the box to achieve fixation, so that hoisting can be carried out without the action of a lifting ring, which is convenient and saves time.

[0015] Preferably, in order to improve the clamping force and anti-slip performance of the clamping surface, a rubber clamping block 15 is fixedly provided on the clamping end surface of the rigid clamping head 14 .

[0016] Preferably, the rigid clamping head 14 is hinged on the transverse clamping arm 13 .

[0017] During specific implementation, first select the double round head slide groove 20 in a suitable position according to the size of the box, that is, the maximum distance between the two double round head slide grooves 20 selected is larger than the size of the box, and the minimum distance between the two double round head slide grooves 20 selected is smaller than the size of the box. When clamping, the transverse clamping arm 13 is pulled to the maximum stroke of the double round head slide groove 20. When the hook 10 is lifted, the lower clamping arm 12 is hinged to pull the traction bar 16 inward relative to the sleeve rod 19 under the action of weight, so that the rubber clamping block 15 is clamped on the outer wall of the box. The reaction force of the weight of the box makes the lower clamping arm 12 clamp tighter, thereby realizing rapid lifting within an appropriate weight, without the need for binding ropes or lifting rings, which is more efficient and convenient.

[0018] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A two-way clamping sling for construction engineering, comprising a lifting ring (21) for a lifting hook (10), characterized in that: An upper clamp arm (11) is hingedly provided on the lifting ring (21), a lower clamp arm (12) is hingedly provided at the lower end of the upper clamp arm (11), and the middle part of the lower clamp arm (12) is hingedly provided via a hinge shaft, and further comprises two symmetrically arranged traction bars (16), the traction bars (16) being provided with a plurality of pin holes (17), the traction bars (16) being slidably inserted into a sleeve rod (19), and the sleeve rod (19) being provided with a plurality of double round-headed sliding grooves (20), a pin (18) for fixing the transversely movable clamp arm (13) and the traction bar (16) being inserted through the transversely movable clamp arm (13), the pin holes (17) and the double round-headed sliding grooves (20), and the pin (18) and the transversely movable clamp arm The arm (13) and the pin hole (17) are fixedly connected. When the traction bar (16) moves laterally in the sleeve rod (19), it drives the transverse clamping arm (13) to move, thereby achieving clamping or loosening. The lower end of the lower clamping arm (12) is hinged to the end of the traction bar (16). When the hook (10) lifts the upper clamping arm (11), the lower clamping arm (12) is pulled under the action of the weight, so that the end of the lower clamping arm (12) moves inward, thereby clamping the traction bar (16) and the transverse clamping arm (13) inward, so that the rigid clamping head (14) fixed to the lower end of the transverse clamping arm (13) is clamped on the outer wall or step surface of the box body to achieve fixation.

2. A two-way clamping hanger for construction engineering according to claim 1, characterized in that: In order to improve the clamping force and anti-slip performance of the clamping surface, a rubber clamping block (15) is fixedly provided on the clamping end surface of the rigid clamping head (14).

3. A two-way clamping hanger for construction engineering according to claim 1, characterized in that: The rigid clamping head (14) is hinged on the transverse clamping arm (13).

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