Mechanism for quickly adjusting adjusting nut on jacking screw rod in place

Abstract

The utility model discloses a quick in-place adjusting mechanism for an adjusting nut on a jacking screw. The quick in-place adjusting mechanism realizes convenient and efficient adjustment of the position of the adjustable nut on batch jacking. The top supporting plate (1) is arranged on the horizontal ground, a sleeve (6) is arranged on the top end face of the butterfly nut (3), a three-jaw fork (7) is welded to the top end face of the sleeve (6), a drill rod (8) is connected to the middle of the three-jaw fork (7) in a welded mode, and a portable electric drill (9) is connected to the top end of the drill rod (8). A left vertical insertion rod (10) is welded to the side vertical face of the left end of the sleeve (6), a right vertical insertion rod (11) is welded to the side vertical face of the right end of the sleeve (6), the lower end of the left vertical insertion rod (10) is inserted into the left through hole (4), and the right vertical insertion rod (11) is inserted into the right through hole (5). And the working efficiency of field batch nut adjustment is greatly improved.

Description

Technical Field

[0001] The utility model relates to an adjustable jacking support in a formwork system of a construction site, in particular to a quick adjustment mechanism for an adjustment nut on a jacking support screw rod. Background Art

[0002] In building construction, the formwork system mostly uses top supports in combination with steel pipe erection to meet the requirements of the frame height, and a large number of height-adjustable top supports are used; but when leaving the factory, the adjustable nut on the top support seat is generally set at the top of the screw, and the length of the support seat screw is about 60 cm. The building code requires that after the top support seat is installed on the top of the full-span bracket, the exposed length of the screw shall not be greater than 30 cm. This requires that before using the top support seat, the nut on the top of the top support seat screw must first be rotated downward and adjusted by about 30 cm before it can be installed on the top of the full-span bracket; therefore, when erecting the full-span bracket on site, it takes a lot of time and manpower to adjust the position of the adjustable nuts on a large number of top supports one by one. How to develop a tool that can conveniently adjust the position of the adjustable nut has become a problem that needs to be solved on site. Summary of the invention

[0003] The utility model provides a quick adjustment mechanism for adjusting nuts on a jacking screw rod, which enables convenient and efficient adjustment of the positions of adjustable nuts on batch jackings.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A quick adjustment mechanism for adjusting a nut on a jacking screw comprises a jacking support plate, a screw is fixedly connected to the jacking support plate, a butterfly nut is connected to the screw, a left through hole is arranged on the left wing plate of the butterfly nut, a right through hole is arranged on the right wing plate of the butterfly nut, the jacking support plate is arranged on a horizontal ground, a sleeve is arranged on the top surface of the butterfly nut, a three-claw fork is welded on the top surface of the sleeve, a drill rod is welded and connected to the middle part of the three-claw fork, and a portable electric drill is connected to the top of the drill rod; a left vertical plug rod is welded on the left end side vertical surface of the sleeve, a right vertical plug rod is welded on the right end side vertical surface of the sleeve, the lower end of the left vertical plug rod is inserted in the left through hole, and the right vertical plug rod is inserted in the right through hole.

[0006] The three claws of the three-claw fork are all L-shaped, and the interval between two adjacent claws is 120 arc degrees.

[0007] The utility model adopts a portable electric drill as a power source, and the electric drill bit drives the sleeve to rotate, and the sleeve drives the butterfly nut to rotate through two vertical plug rods, thereby realizing the upward and downward adjustment of the position of the nut on the screw rod, which greatly improves the work efficiency of batch adjustment of nuts on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0009] The utility model is described in detail below with reference to the accompanying drawings:

[0010] A quick adjustment mechanism for adjusting nuts on a jacking screw comprises a jacking support plate 1, a screw 2 is fixedly connected to the jacking support plate 1, a butterfly nut 3 is connected to the screw 2, a left through hole 4 is arranged on the left wing plate of the butterfly nut 3, and a right through hole 5 is arranged on the right wing plate of the butterfly nut 3. The jacking support plate 1 is arranged on a horizontal ground, and the jacking support is inverted and placed vertically on the ground so that the butterfly nut 3 is arranged directly above the jacking support plate 1, a sleeve 6 is arranged on the top end surface of the butterfly nut 3, a three-claw fork 7 is welded on the top end surface of the sleeve 6, a drill rod 8 is welded to the middle part of the three-claw fork 7, a portable electric drill 9 is connected to the top end of the drill rod 8, and a left side vertical surface of the sleeve 6 is welded. There is a left vertical plug rod 10, and a right vertical plug rod 11 is welded on the right end side surface of the sleeve 6. The lower end of the left vertical plug rod 10 is inserted in the left through hole 4, and the right vertical plug rod 11 is inserted in the right through hole 5; the three-claw fork 7 is fixedly connected to the sleeve 6 to construct an integral structure of the drill rod 8, the three-claw fork 7, the sleeve 6, the left vertical plug rod 10 and the right vertical plug rod 11. The top end of the drill rod 8 is inserted into the drill rod socket of the portable electric drill 9, and the portable electric drill 9 is started. The portable electric drill 9 drives the sleeve 6 to rotate, and the sleeve 6 drives the butterfly nut 3 to rotate through the left vertical plug rod 10 and the right vertical plug rod 11, so that the butterfly nut 3 is lifted and lowered on the screw 2, and the upper end of the screw 2 is lifted and lowered in the sleeve 6.

[0011] The three claws of the three-claw fork 7 are all L-shaped, and the interval between two adjacent claws is 120 arc degrees, so that the rotation force of the drill rod 8 is evenly transmitted to the nut 3.

Claims

1. A quick adjustment mechanism for adjusting a nut on a supporting screw, comprising a supporting plate (1), a screw (2) fixedly connected to the supporting plate (1), a butterfly nut (3) connected to the screw (2), a left through hole (4) provided on the left wing plate of the butterfly nut (3), and a right through hole (5) provided on the right wing plate of the butterfly nut (3), characterized in that: The top supporting plate (1) is arranged on a horizontal ground, a sleeve (6) is arranged on the top surface of the butterfly nut (3), a three-claw fork (7) is welded on the top surface of the sleeve (6), a drill rod (8) is welded to the middle of the three-claw fork (7), and a portable electric drill (9) is connected to the top of the drill rod (8); a left vertical plug rod (10) is welded on the left end side vertical surface of the sleeve (6), and a right vertical plug rod (11) is welded on the right end side vertical surface of the sleeve (6); the lower end of the left vertical plug rod (10) is inserted into the left through hole (4), and the right vertical plug rod (11) is inserted into the right through hole (5).

2. A quick adjustment mechanism for adjusting the nut on the jacking screw according to claim 1, characterized in that: The three claws of the three-claw fork (7) are all L-shaped, and the interval between two adjacent claws is 120 arc degrees.

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