CN201305996Y - Connecting piece capable of lowering jacking cantilever of scaffold - Google Patents

Abstract

The utility model discloses a connecting piece capable of lowering the height of the cantilever of a steel pipe scaffold, which is characterized in that: the connecting piece is composed of an upper lock nut, a connecting sleeve, a lower lock nut, and welded on the upper lock nut, the lower lock Composed of rotating leaves on the side wall of the lock nut, the upper lock screw, connecting sleeve and lower lock nut are assembled on the ejector rod, the connecting sleeve is located between the lower lock nut and the upper lock nut, and the connecting sleeve is embedded in the lock In the groove of the lock nut and the lower lock nut. The upper lock nut and the lower lock nut are concave, with rotating leaves on both sides of the concave shape, and the grooves of the upper lock nut and the lower lock nut are used oppositely. The utility model has the advantages of simple structure, reasonable structure, simple structure, convenient use and simple disassembly, and can effectively reduce the height of the jacking cantilever, thereby improving the stability of the support frame and ensuring the safety of construction in the structural stage.

Description

A connecting piece capable of lowering the cantilever of scaffolding jacking

technical field

The utility model relates to an adjustable jacking bracket of a scaffold, in particular to a connecting piece capable of lowering the height of the cantilever of the adjustable jacking bracket of a scaffolding.

Background technique

At present, socket-type bowl-buckle or slot-wedge scaffolds are widely used in housing construction and bridge construction. It has the characteristics of good strength, safety and reliability, and easy maintenance. It has a stronger stable bearing capacity than fastener-type steel pipe scaffolding. It can not only assemble various scaffolds, but also is more suitable for constructing support frames, especially heavy-duty support frames. The length specification of the pole is standardized, and there are four specifications of 1.2m, 1.8m, 2.4m, and 3.0m. The push rod of support is screw rod. During engineering construction, due to the limitation of the height of the building and the mismatch of scaffolding pole materials, it often happens that when the poles and jacking brackets are assembled, the height of the cantilever of the jacking brackets is too large, especially under heavy load conditions, causing the scaffolding to be damaged. The stability of the compression bar is not enough, which directly affects the construction safety of the structure.

Therefore, it is necessary to design an accessory that can be assembled on the jacking bracket, which can be connected vertically and horizontally with ordinary steel pipes and fasteners, and reduce the cantilever height of the jacking bracket to meet the stability of the scaffold’s compression members.

Contents of the invention

The purpose of this utility model is to provide a connecting piece that can reduce the height of the cantilever of the scaffolding jacking. The supporting frame body of scaffolding is especially applicable.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A connecting piece capable of reducing the height of a steel pipe scaffold jacking cantilever is to add the connecting piece without changing the adjustable jacking structure of a commonly used scaffold. Commonly used adjustable jacking brackets are basically composed of a mandrel, a bracket and an adjusting nut assembled on the mandrel. The connecting piece is characterized in that: the connecting piece is composed of a connecting sleeve, an upper locking nut, a lower locking nut, and rotating leaves welded on the side walls of the upper locking nut and the lower locking nut, the upper locking nut, the connecting sleeve, The lower locking nut is assembled on the push rod, and the connecting sleeve is located between the lower locking nut and the upper locking nut, and embedded in the groove of the upper locking nut and the lower locking nut.

The upper locking nut, the connecting sleeve, the lower locking nut and the adjusting nut are sequentially assembled on the push rod from the bottom of the bracket downward.

The connection sleeve adopts Φ48mm ordinary steel pipe, and the inner wall is cylindrical. The upper lock nut and the lower lock nut are common, and the upper lock nut and the lower lock nut are in a "concave" shape, and the connecting sleeve is embedded in the groove of the upper lock nut and the lower lock nut.

A method of using a connector that can reduce the height of the steel pipe scaffolding jacking cantilever:

A. Insert the ejector rod into the vertical rod on the top of the scaffold, rotate the adjusting nut until the position of the bracket meets the installation requirements of the joist, and lock the adjusting nut and the vertical rod.

B. Rotate the lower locking nut first, insert the connecting sleeve into the groove of the lower locking nut, and then rotate the upper locking nut to fix the connecting sleeve.

C. Use ordinary steel pipes and fasteners to connect vertically and horizontally to the connecting sleeve.

The utility model has the advantages of reasonable structure, simple structure, convenient use, simple disassembly, and can effectively reduce the height of the jacking cantilever, thereby improving the stability of the support frame and ensuring the safety of construction in the structural stage.

Description of drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a connecting piece that can lower the supporting cantilever of steel pipe scaffolding

Figure 2 is a structural schematic diagram of a locking nut up and down

Fig. 3 is an attached view of a locking nut up and down

Figure 4 is a bottom view of a locking nut up and down

Figure 5 is a cross-sectional view of a locking lock nut up and down

In the figure, 1 is the ejector rod, 2 is the bracket, 3 is the adjusting nut, 4 is the upper locking nut, 5 is the connecting sleeve, 6 is the lower locking nut, 7 is the rotating leaf, 8 is the locking hole, 9 for holes.

Detailed ways

Below in conjunction with description of drawings and specific embodiment, the utility model is described in further detail:

According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, and Fig. 5, it can be known that a connecting piece that can reduce the height of the steel pipe scaffolding jacking cantilever is to increase the connecting piece without changing the adjustable jacking structure of the commonly used scaffolding. It is characterized in that: the connector is composed of an upper lock nut 4, a connecting sleeve 5, and a lower lock nut 6, and the upper lock nut 4, the connecting sleeve 5, and the lower lock nut 6 are assembled on the ejector rod 1, and its connection The sleeve 5 is made of Φ48mm ordinary steel pipe, the upper lock nut 4 and the lower lock nut 6 are common, the upper lock nut 4 and the lower lock nut 6 are in a "concave" shape, and the rotating leaves 7 are welded on both sides of the "concave" shape, A locking hole with a diameter of Φ0.6cm, 0.7cm or 0.8cm is arranged on the rotating blade 7, and the grooves of the upper lock nut 4 and the lower lock nut 6 are used oppositely, and the effect is that the upper lock nut 4 and the lower lock nut 6 can Embedded connection sleeve 5.

The connecting sleeve 5 adopts Φ48mm×3.0mm ordinary steel pipe, the inner wall is cylindrical, and the length is 10cm, 11cm or 12cm. stability, to ensure the safety of structural construction purposes. The connecting sleeve 5 is located between the lower locking nut 4 and the upper locking nut 6 , and embedded in the grooves of the lower locking nut 4 and the upper locking nut 6 .

The upper lock nut 4 and the lower lock nut 6 are in a "concave" shape with a height of 2cm or 2.5cm. Its function is to embed the connecting sleeve 5 in it, the inner diameter of the "concave" shape is 48mm, the wall thickness of the "concave" shape is 0.5cm, 0.6cm or 0.7cm, and only the hole 9 with internal thread is made in the center of the bottom of the "concave" shape . Hole 9 is compatible with the diameter of push rod 1, the size of screw thread.

The rotating blade 7 is rectangular, with a height of 2cm or 2.5cm and a width of 1.5cm or 2cm. It is welded on the side walls of the upper locking nut 4 and the lower locking nut 6 with a wall thickness of 0.6cm or 0.7cm. A diameter Φ0.6cm, 0.7cm or 0.8cm locking holes are used to rotate and lock the upper lock nut 4 and the lower lock nut 6 with a drill.

When assembling the connector, assemble the upper locking nut 4, the connecting sleeve 5, the lower locking nut 6, and the adjusting nut 3 sequentially from the bottom of the bracket 2 on the push rod 1. First rotate the adjusting nut 3 until the position of the bracket 2 meets the joist installation requirements, and lock the adjusting nut 3 with the top pole. Then insert the drill into the locking hole and rotate the lower lock nut 6 until the height of the jacking cantilever does not affect the stability of the support frame, insert the connecting sleeve 5 into the "concave" groove of the lower lock nut 6, and finally insert the drill Insert the locking hole and rotate and lock the upper locking nut 4 to fix the connecting sleeve 5 .

Claims (3)

1, a kind of connector that can reduce steel pipe scaffold jacking cantilever, it is by push rod (1), bracket (2), adjusting nut (3) is formed, it is characterized in that: connector is by upper locking nut (4), branch sleeve (5), lower locking nut (6), and be welded on upper locking nut (4), the pivoting leaf (7) of lower locking nut (6) sidewall is formed, upper locking nut (4), branch sleeve (5), lower locking nut (6) is assembled on the push rod (1), branch sleeve (5) is positioned between lower locking nut (6) and the upper locking nut (4), and branch sleeve (5) embeds in the groove of upper locking nut (6) and lower locking nut (4).

2, a kind of connector that can reduce steel pipe scaffold jacking cantilever according to claim 1 is characterized in that: branch sleeve (5) adopts Φ 48mm steel pipe, its length 10cm, 11cm or 12cm; Upper locking nut (4), lower locking nut (6) are spill, spill both sides band pivoting leafs (7), and pivoting leaf (7) is gone up placement diameter Φ 0.6cm, 0.7cm or 0.8cm locking hole (8).

3, a kind of connector that can reduce steel pipe scaffold jacking cantilever according to claim 1 is characterized in that: upper locking nut (4), lower locking nut (6) groove are relative.

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