CN214087287U

CN214087287U - Traceless flat-hanging tongs of crane

Info

Publication number: CN214087287U
Application number: CN202023095169.XU
Authority: CN
Inventors: 顾仲贤
Original assignee: Wuxi Ruijia Lifting Machinery Co ltd
Current assignee: Wuxi Ruijia Lifting Machinery Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-31
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a no trace flat hanging tongs of hoist, including first calliper, second calliper, skew determine module and early warning subassembly, the articulated setting in plate body middle section of second calliper is on first calliper, the one end open-close type of second calliper is pressed and is covered on first calliper, just be provided with the lewis hole on the other end of second calliper, be provided with the skew determine module on the first calliper, just the skew subassembly corresponds to the object setting by the centre gripping, the skew determine module detects by the holding object relative to the offset of first calliper under by the holding object skew state early warning subassembly early warning can detect the offset, in time discovers the slippage phenomenon of being hung the object.

Description

Traceless flat-hanging tongs of crane

Technical Field

The utility model belongs to the field of lift by crane, in particular to no trace flat lifting tongs of hoist.

Background

In occasions such as mechanical hoist and mount, building site construction, need lift by crane and transport to heavy, bulky article such as steel sheet, tubular product, need use the tong structure at the in-process of lifting by crane, at present, although the kind of tong is many, but mostly because rocking and the swing of chain sling for at the in-process of lifting by crane, there is certain drunkenness by the object for calliper in the direction of perpendicular to clamping force, when the displacement volume of this drunkenness exceeded certain degree, there was the risk of slippage by the object of lifting by crane.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the not enough of existence among the prior art, the utility model provides a no trace level of hoist hangs tongs can detect the offset, in time discovers the slippage phenomenon of being hung the object.

The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the utility model is as follows:

the traceless horizontal hoisting tongs comprise a first caliper, a second caliper, an offset detection assembly and an early warning assembly, wherein the middle section of a plate body of the second caliper is hinged to the first caliper, one end of the second caliper is pressed on the first caliper in an opening-closing mode, a hoisting hole is formed in the other end of the second caliper, the offset detection assembly is arranged on the first caliper and corresponds to a clamped object, the offset detection assembly detects the offset of the clamped object relative to the first caliper, and the early warning assembly gives an early warning when the clamped object is in an offset state.

Further, first calliper is horizontal U type plate body structure, second calliper is the strip plate body structure, first calliper contains two support arms and one and connects in the linking arm of two support arms, the articulated setting of second calliper is on the support arm of upside, skew determine module sets up on the linking arm.

Further, skew determine module includes ejector pin, elasticity piece and displacement detection mechanism that resets, the ejector pin activity is worn to establish on first calliper, just the ejector pin resets for first calliper elastic displacement through elasticity, the one end elasticity butt of ejector pin is on by the centre gripping object, just the other end of ejector pin is provided with displacement detection mechanism, displacement detection mechanism detects the displacement volume of ejector pin.

Further, the displacement detection mechanism is a displacement sensor.

Furthermore, the displacement detection mechanism comprises a power supply set, and a movable contact and a fixed contact which are respectively and electrically connected with and arranged at the two polar ends of the power supply set, wherein the movable contact is arranged at one end of the ejector rod, which deviates from the clamped object, the fixed contact is arranged on the first caliper, and the fixed contact is arranged upwards on the displacement path of the movable contact.

Further, the early warning subassembly includes warning light area, warning light area is around establishing on the wall body of first calliper.

Has the advantages that: the utility model discloses an skew detection module carries out the offset to the object by the centre gripping and detects, lifts by crane the in-process, when being surpassed in the relative displacement volume change of calliper by the centre gripping object and predetermineeing when injecing the displacement volume, the early warning subassembly carries out the early warning to timely reflection should lift by crane the tong and have the slippage risk, in time stop to lift by crane and withdraw with carrying out personnel, reduces the potential safety hazard.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a perspective view of the overall structure of the present invention;

fig. 3 is a schematic view of the whole structure of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 3, the traceless horizontal hanging tongs of the crane comprises a first caliper 1, a second caliper 2, an offset detection component 3 and an early warning component 4, wherein the middle section of a plate body of the second caliper 2 is hinged to the first caliper 1, one end of the second caliper 2 is pressed on the first caliper 1 in an opening-closing manner, a hanging hole 5 is formed in the other end of the second caliper 2, the first caliper 1 and the second caliper 2 are respectively located on the upper side and the lower side of a clamped object 20, and the second caliper 2 is clamped relative to the first caliper 1 by lifting the hanging hole 5 of the second caliper 2.

Be provided with skew detection module 3 on first calliper 1, just skew detection module 3 is corresponding to the setting of the object 20 by the centre gripping, just skew detection module 3 sets up in the direction of dealing with in the centre gripping force, skew detection module 3 detects by the centre gripping object for the offset of first calliper 1 on the horizontal direction, by the centre gripping object skew state under the early warning subassembly 4 early warning, early warning subassembly 4 includes warning light area 15, warning light area 15 is around establishing on the wall body of first calliper 1, still includes bee calling organ 16, increases the warning effect.

First calliper 1 is horizontal U type plate body structure, second calliper 2 is the strip plate body structure, first calliper 1 contains two support arms 6 and one and connects in the linking arm 7 of two

support arms

6, 2 articulated settings of second calliper are on the support arm of upside, and the support arm of downside is used for supporting the bearing by centre gripping object 20, just the articulated shaft of second calliper 2 is close to in linking arm 7, skew detection component 3 and early warning subassembly 4 all set up on linking arm 7.

Skew determine module 3 includes ejector pin 10, elasticity piece 11 and displacement detection mechanism that resets, ejector pin 10 activity is worn to establish on first calliper 1, ejector pin 10 perpendicular to clamping-force direction, just ejector pin 10 resets through elasticity piece 11 for 1 elastic displacement of first calliper, elasticity resets 11 and establishes reset spring on ejector pin 10 for the cover, the one end elasticity butt of ejector pin 10 is in by the centre gripping object on, just the other end of ejector pin 10 is provided with displacement detection mechanism, displacement detection mechanism detects the displacement volume of ejector pin 10. When carrying out the centre gripping to being held thing 20 before lifting by crane, ejector pin 10 elasticity supports and presses on being held the lateral wall of thing 20, lifts by crane the in-process, because there is certain displacement skew by rocking and the drunkenness of centre gripping thing 20 for the tong, when the offset surpassed the default, carries out the police dispatch newspaper.

One embodiment is as follows: the displacement detection mechanism is a displacement sensor, and is simple in structure and low in cost.

In another embodiment: the displacement detection mechanism comprises a power supply pack 14, a movable contact 12 and a fixed contact 13 which are respectively and electrically connected with and arranged at two polar ends of the power supply pack, wherein the movable contact 12 and the fixed contact 13 are conductive metal contacts, the movable contact 12 is arranged at one end of the ejector rod 10, which deviates from a clamped object, the fixed contact 13 is arranged on the first caliper 1, the fixed contact 13 is positioned above a displacement path of the movable contact 12, a conductive loop is formed after the movable contact 12 displaces towards the fixed contact 13 and contacts with each other, and a buzzer 16 and a warning lamp strip 15 are both arranged on the conductive loop formed by the movable contact and the fixed contact in series.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. The traceless horizontal hanging tongs of the crane are characterized in that: including first calliper (1), second calliper (2), skew detection module (3) and early warning subassembly (4), the articulated setting on first calliper (1) in plate body middle section of second calliper (2), the one end open-close type of second calliper (2) is pressed and is covered on first calliper (1), just be provided with lewis hole (5) on the other end of second calliper (2), be provided with skew detection module (3) on first calliper (1), just skew detection module (3) are corresponding to the object setting by the centre gripping, skew detection module (3) detect by the offset of centre gripping object for first calliper (1), under by centre gripping object skew state early warning subassembly (4) early warning.

2. The traceless flat hanging tongs of the crane according to claim 1, characterized in that: first calliper (1) is horizontal U type plate body structure, second calliper (2) are the strip plate body structure, first calliper (1) contains two support arms (6) and one connects in linking arm (7) of two support arms (6), second calliper (2) are articulated to be set up on the support arm of upside, skew detection module (3) set up on linking arm (7).

3. The traceless flat hanging tongs of the crane according to claim 1, characterized in that: skew determine module (3) include ejector pin (10), elasticity piece (11) and displacement detection mechanism that resets, ejector pin (10) activity is worn to establish on first calliper (1), just ejector pin (10) reset piece (11) through elasticity and for first calliper (1) elastic displacement, the one end elasticity butt of ejector pin (10) is on by the centre gripping object, just the other end of ejector pin (10) is provided with displacement detection mechanism, displacement detection mechanism detects the displacement volume of ejector pin (10).

4. The traceless flat hanging tongs of the crane according to claim 3, characterized in that: the displacement detection mechanism is a displacement sensor.

5. The traceless flat hanging tongs of the crane according to claim 3, characterized in that: the displacement detection mechanism comprises a power supply set (14), a movable contact (12) and a fixed contact (13), wherein the movable contact (12) and the fixed contact (13) are respectively and electrically connected with two polar ends of the power supply set, the movable contact (12) is arranged at one end, deviating from a clamped object, of the ejector rod (10), the fixed contact (13) is arranged on the first caliper (1), and the fixed contact (13) is located upwards on a displacement path of the movable contact (12).

6. The traceless flat hanging tongs of the crane according to claim 1, characterized in that: early warning subassembly (4) are including warning light area (15), warning light area (15) are around establishing on the wall body of first calliper (1).