CN210342646U

CN210342646U - Double-lug joint

Info

Publication number: CN210342646U
Application number: CN201821931701.7U
Authority: CN
Inventors: 甯稿饯; 常彤
Original assignee: Wuhan Tianxie Building Equipment Co ltd
Current assignee: Wuhan Tianxie Building Equipment Co ltd
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2020-04-17
Anticipated expiration: 2028-11-22

Abstract

The utility model discloses a double-lug joint, which comprises a butt joint plate (1), a middle cylinder (2) and a tail cylinder (3). In high-altitude construction of buildings, an electric construction lifting platform is often used for outer wall decoration of curtain walls, coatings, masonry and the like, and consists of a stand column, a platform, a base, a driving system and the like, wherein the platform consists of a plurality of pairwise butted horizontal triangular beams, a plurality of steel springboards and the like. Whether the butt joint between the horizontal triangular beam is safe, effective, firm and reliable, whether the butt joint is quick often can influence the construction and safety and the work efficiency of the electric construction lifting platform. Therefore, it is very important to design a new and efficient butt joint. The utility model discloses a casting integrative structure that forms can realize safe effective, the quick effect of butt joint with being connected of monaural joint. The utility model has the advantages of simple and reasonable structure, easy production, labour saving, time saving, material saving, safety, high efficiency, excellent in use effect.

Description

Double-lug joint

Technical Field

The utility model relates to the building field specifically is a double lug connects.

Background

At present, the electric construction lifting platform is applied to exterior wall decoration of curtain walls, paint, masonry and the like in the building industry, and can also be applied to other high-altitude operations, such as exterior wall renovation, curtain wall cleaning and the like. The use of the electric construction lifting platform has the following advantages that 1, the economic performance is good: no matter how high the building is, electric construction lift platform only need set up one (or two) stand and liftable operation platform along the building, can practice thrift a large amount of steel, according to (33 m height 30m length) 1000 square meters calculation, and fastener formula steel pipe scaffold frame needs about 22 tons of steel, and electric construction lift platform only needs 5 tons of steel, can practice thrift 80% steel in comparison, and higher more economical. 2, the safety performance is good: the electric construction lifting platform is a lifting machine driven by a gear and a rack, and a speed reducer of the electric construction lifting platform is a worm and gear speed reducer and has a self-locking function, so that the operation platform can be safely stopped at any height; the falling protector can be braked emergently when falling occurs, and major accidents such as falling of the operating platform and the like can be prevented; the electric system can automatically cut off the power when an accident happens, so that various accidents are avoided; meanwhile, the stand columns and the horizontal triangular beams of the electric construction lifting platform are of triangular structures with good stability, and the selected materials are all section bars with thick wall thickness, so that the bearing capacity of the electric construction lifting platform is improved. 3. The installation, use and dismantlement are convenient, efficient: when the electric construction lifting platform is installed, only one or two upright posts and a lifting operation platform are needed to be erected along a building, so that the electric construction lifting platform can be used for operation, and the situation that a plurality of layers of walkway plates are arranged along a circle around the building like an all-steel frame is not needed; when the lifting platform is used, the lifting of the electric construction lifting platform can be realized by using a remote controller or a button on a control box, the lifting platform is easier to operate than an all-steel frame, the number of machine positions controlled by the electric construction lifting platform is at most two, and the synchronism and the coordination are easier to guarantee than the simultaneous lifting of a plurality of machine positions of the all-steel frame; meanwhile, the lifting speed of the electric construction lifting platform is 6m/min, and quick lifting can be realized, so that the efficiency is improved, the electric construction lifting platform can start decoration without waiting for the completion of roof waterproofing, the time can be saved, and the efficiency is improved.

The platform part in the electric construction lifting platform is used for construction operation and material transportation, the platform consists of a plurality of horizontal triangular beams and steel springboards which are butted in pairs, and whether the butt joint of the horizontal triangular beams is firm, safe and reliable directly influences the operation and the safety of the electric construction lifting platform; whether the horizontal triangular beams are conveniently and quickly butted or not influences the speed and the efficiency of assembling the electric construction lifting platform.

The traditional horizontal triangular beam butt joint is formed by welding two bent steel plates with holes on two surfaces of a square tube in a horizontal triangular beam. The traditional butt joint is not easy to ensure the concentricity of the holes on the two bending plates during welding, and is easy to cause that a pin shaft is not easy to pass through the holes or can not pass through the holes, thereby influencing the assembly speed and the assembly efficiency of the electric construction lifting platform; and the bending plate is easy to generate stress concentration at the bending position, which inevitably affects the bearing capacity of the horizontal triangular beam and easily leaves potential safety hazards.

Meanwhile, the bending plate is easy to leak, weld less, weld wrong and the like in the welding process of the square tube in the horizontal triangular beam, potential safety hazards are easy to remain, a large number of welding points are provided, welding is time-consuming, and the effects of saving time and cost cannot be achieved.

Disclosure of Invention

To the above situation, for overcoming prior art not enough, the utility model aims at providing a ears connects, can effectively solve traditional butt joint precision and difficult assurance, have potential safety hazard, preparation scheduling problem consuming time.

The utility model adopts the technical proposal that: a double-lug joint comprises a butt joint plate, a middle cylinder and a tail cylinder.

Through foretell technical scheme, the butt joint plate that the ears connect has two, and it has the round hole to open on the butt joint plate, and its effect is used for being connected with the monaural joint, connects with the customization round pin axle between the two.

Through the technical scheme, the middle cylinder of the double-lug joint is used for connecting the butt joint plate and the tail cylinder, and the arc and the inclination are arranged outside the butt joint position of the middle cylinder and the butt joint plate for transition, so that the stress concentration at the butt joint position can be reduced, and the bearing capacity of the double-lug joint is enhanced; the joint of the middle cylinder and the tail cylinder is provided with a slope for transition, the effect of the transition is to reduce the stress concentration at the joint, and the transition is convenient to be welded with the end part of a phi 48 circular tube of the horizontal triangular beam to form a V-shaped welding line.

Through the technical scheme, the tail cylinder of the double-lug joint is plugged into the inner hole of the phi 48 circular pipe of the horizontal triangular beam, and the double-lug joint is used for positioning the position of the double-lug joint in the horizontal triangular beam and preventing deformation and displacement during welding from affecting the butt joint precision.

Compared with the prior art, the double-lug joint has the advantages that: the double-lug joint is manufactured in a casting mode, and the concentricity of holes on the two butt-joint plates can be well guaranteed; meanwhile, the multiple positions of the double-lug joint are transited by adopting circular arcs or slopes, so that the stress concentration phenomenon is reduced, the bearing capacity of the double-lug joint is improved, and potential safety hazards are eliminated or reduced; the double-lug joint has a lot of less welding points than the traditional joint, so that the phenomena of missing welding, less welding, wrong welding and the like can be reduced, potential safety hazards are avoided, and meanwhile, the effects of saving time and improving efficiency can be achieved.

Drawings

Fig. 1 is the butt joint schematic diagram of the double-lug joint and the single-lug joint of the utility model.

Fig. 2 is the utility model discloses the double lug connects the schematic diagram in horizontal triangular beam.

Fig. 3 is a front view of a binaural joint.

Fig. 4 is a top view of a binaural joint.

Fig. 5 is an isometric view of a binaural joint.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-5, the utility model comprises a butt plate 1, a middle cylinder 2 and a tail cylinder 3. The utility model is formed by casting, the butt plate 1 is provided with a round hole which is used for connecting with a single-lug connector, and the two are connected by a customized pin shaft; the middle cylinder 2 is used for connecting the butt joint plate 1 and the tail cylinder 3, and the butt joint positions of the butt joint plate 1 and the tail cylinder 3 are in arc transition or slope transition so as to reduce stress concentration at the butt joint positions; the tail cylinder 3 is plugged into the inner hole of the phi 48 circular pipe of the horizontal triangular beam, and the position of the double-lug joint can be accurately positioned, so that the horizontal triangular beam can be simply and quickly butted with each other.

It is above only the preferred embodiment of the utility model, the utility model discloses a scope of protection not only limits in above-mentioned example, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection.

Claims

1. The utility model provides a double-lug joint, includes butt plate (1), middle cylinder (2), afterbody cylinder (3), characterized by: the butt joint plate (1) is provided with two pieces, and round holes are formed in the butt joint plate (1); the middle cylinder (2) is used for connecting the butt joint plate (1) and the tail cylinder (3), the outer part of the butt joint part of the middle cylinder (2) and the butt joint plate (1) is provided with an arc and an inclination for transition, and the butt joint part of the middle cylinder (2) and the tail cylinder (3) is provided with an inclination for transition; the tail cylinder (3) is plugged into the phi 48 circular tube inner hole of the horizontal triangular beam.

2. A binaural joint according to claim 1, characterized in that said abutment plate (1) and the monaural joint connection are connected by a custom pin.

3. A binaural joint according to claim 1, characterized in that said intermediate cylinder (2) is welded to the end of a phi 48 tube of a horizontal triangular beam to form a "V" shaped weld.