CN-118187442-B - Square fastener device of beam bottom formwork support frame steel pipe

CN118187442BCN 118187442 BCN118187442 BCN 118187442BCN-118187442-B

Abstract

The invention discloses a square fastener device for a steel pipe of a beam bottom formwork support frame, which relates to the technical field of assembled workpieces and comprises a square pipe fixing mechanism, a round pipe fixing mechanism, a sliding telescopic mechanism and a propping mechanism, wherein an arc-shaped inner cavity is formed in a bottom piece of the round pipe fixing mechanism, a clasping assembly is rotatably connected to the side wall of the bottom piece, the clasping assembly can form a circular accommodating cavity with the arc-shaped inner cavity to be matched with a sleeved circular steel pipe, the rear side of the bottom piece is connected with the sliding telescopic mechanism, and when oil in an oil cavity in the bottom piece flows into a telescopic oil pipe, a piston in the telescopic oil pipe can be pushed to move towards the direction of the square pipe, and meanwhile, a top plate of the propping mechanism is driven to move in the same direction, so that propping and pressing of the square steel pipe in the square pipe can be realized. The invention improves the stability and reliability of steel pipe connection, can better clamp and fix round steel pipes and square steel pipes, and has wide practicability and universality.

Inventors

LIU HUWEI
CHEN FUHUA
LIU KAI
CAO HAIRUI
LI CANLIN
TIAN XINGYU
ZHENG HAI
FU JIAQI
GAO DONGYA

Assignees

中建八局第三建设有限公司

Dates

Publication Date: 20260505
Application Date: 20231207

Claims (5)

1. The square fastener device for the steel pipe of the beam bottom formwork support frame comprises a square pipe fixing mechanism, a round pipe fixing mechanism and a sliding telescopic mechanism, and is characterized by further comprising a pushing mechanism, wherein the round pipe fixing mechanism comprises a bottom piece, an arc-shaped inner cavity is formed in the bottom piece, the side wall of the bottom piece is rotationally connected with a holding assembly, the holding assembly can form a circular accommodating cavity with the arc-shaped inner cavity to be matched with a sleeved circular steel pipe, movable seats are respectively arranged on the front side wall and the rear side wall of the bottom piece, a connecting column is rotationally connected to the front movable seat, an arc-shaped anchor ear is rotationally arranged on the rear movable seat of the bottom piece, the rear side of the bottom piece is connected with the sliding telescopic mechanism, the sliding telescopic mechanism comprises a connecting piece, a telescopic oil pipe is arranged in the connecting piece, one end of the telescopic oil pipe is matched and sleeved in the connecting piece, the oil cavity of the bottom piece, the other end of the telescopic oil pipe is connected with the pushing mechanism, the pushing mechanism is connected with the square pipe fixing mechanism, and the square pipe fixing mechanism comprises a square pipe, and the top plate extends into the square pipe inner cavity; The enclasping assembly comprises an arc-shaped anchor ear and a connecting column, wherein an upper groove is formed in the anchor ear, a top piece extends out of the tail end of the anchor ear, a guide groove is formed in the top piece, and the inner size of the guide groove is matched with that of the connecting column; The arc anchor ear is characterized in that one end of the arc anchor ear, which is rotationally connected with a movable seat on the bottom piece, is a screw seat with an irregular oval structure, the bottom of the movable seat connected with the screw seat extends inwards into an oil cavity in the bottom piece, a sliding block is connected with the movable seat, a sliding block piston is arranged at the tail end of the sliding block, a sliding block spring is fixedly connected to the left side of the sliding block piston, and the tail end of the sliding block spring is fixedly installed at the bottom of the oil cavity.
2. The square fastener device of beam bottom formwork support frame steel pipe of claim 1, wherein the connecting piece comprises a locking head and a locking seat fixed on the left side wall of the bottom piece, the locking seat and the locking head are connected through threads, and the inside of the locking seat and the locking head is of a hollow structure for matching and sleeving a telescopic oil pipe.
3. The square fastener device of beam bottom formwork support frame steel pipe of claim 1, wherein the tightening mechanism further comprises a stud, an external thread is arranged on the outer surface of the stud, the right end of the stud is connected with an internal screw hole on the telescopic oil pipe, and a top plate is fixedly arranged on the left side of the stud.
4. The square fastener device for steel pipes of beam bottom formwork support frames of claim 1, wherein the connecting block is fixedly arranged on the outer side wall of the square pipe on one side of the square pipe close to the bottom piece, connecting holes are formed in the connecting block, and through holes corresponding to the connecting holes are formed in the side wall of the square pipe.
5. The square fastener device of beam bottom formwork support frame steel pipe of claim 1, wherein an inner jacking block channel is further arranged in the bottom piece at one side close to the arc-shaped inner cavity, an inner jacking block piston is matched and arranged in the inner jacking block channel, an inner jacking block is fixedly connected to the right side of the inner jacking block piston, the inner jacking block extends outwards to the outside of the lower groove of the bottom piece, and an arc-shaped surface is arranged at one side, extending out of the bottom piece, of the inner jacking block.

Description

Square fastener device of beam bottom formwork support frame steel pipe Technical Field The invention belongs to the technical field of assembled workpieces, and particularly relates to a square steel pipe fastener device for a beam bottom formwork support frame. Background The fastener generally refers to an intermediate connecting part for connecting two members, and is used for fixing a steel pipe scaffold with the outer diameter of phi 48mm in building engineering, the fastener is divided into a right-angle fastener (a cross fastener and a directional fastener), a rotary fastener (a movable fastener and a universal fastener), a butt-joint fastener (a straight fastener and a direct fastener) and the like, and most fasteners can only connect two connected cylindrical members, such as two connected round steel pipes in a scaffold, but cannot connect two steel pipes with different shapes, such as square steel pipes and round steel pipes. And when two kinds of different steel pipes are assembled, the existing component structure is only applicable to the connection of the steel pipes with specific types or sizes, lacks generality and flexibility, and when the steel pipes with different structures are connected, the connection position and direction of the steel pipes cannot be changed generally, the steel pipes can be assembled along the fixed direction, and the required connection structure is complex, so that the installation complexity is increased, and the connection is unstable and easy to loosen or fall off, so that the safety of a construction site is influenced. Based on the above, the invention provides a device which can connect and assemble components with different structures together, is used for further reducing the working strength of operators and improving the assembly stability and safety. Disclosure of Invention Aiming at the defects and problems of poor universality and flexibility, complex connection structure, unfirm fixation and complex installation of the traditional connection member, the invention provides the square fastener device for the steel tube of the beam bottom template support frame. The square fastener device for the beam bottom formwork support frame comprises a square pipe fixing mechanism, a round pipe fixing mechanism and a sliding telescopic mechanism, and further comprises a propping mechanism, wherein the round pipe fixing mechanism comprises a bottom piece, an arc-shaped inner cavity is formed in the bottom piece, a clasping assembly is rotatably connected to the side wall of the bottom piece, the clasping assembly can encircle the arc-shaped inner cavity to form a circular accommodating cavity to be matched with and sleeved with a circular steel pipe, the rear side of the bottom piece is connected with the sliding telescopic mechanism, the sliding telescopic mechanism comprises a connecting piece, a telescopic oil pipe is arranged in the connecting piece, the telescopic oil pipe is matched and sleeved in the connecting piece, one end of the oil pipe is communicated with an oil cavity in the bottom piece, the other end of the oil pipe is connected with the propping mechanism, the propping mechanism is connected with the square pipe fixing mechanism, the propping mechanism comprises a top plate, the square pipe fixing mechanism comprises a square pipe, the top plate extends into the inner cavity of the square pipe, and in a natural state, after oil in the oil cavity in the bottom piece flows into the telescopic oil pipe, a piston in the square pipe can be pushed to move towards the direction of the square pipe, and meanwhile, the piston in the square pipe can be driven to move in the direction of the square pipe, and the top plate can move in the same direction, so as to realize propping of the opposite side inside of the square pipe. Further, the enclasping assembly comprises an arc-shaped hoop and a connecting column, an upper groove is formed in the hoop, a top piece extends out of the tail end of the hoop, a guide groove is formed in the top piece, and the inner size of the guide groove is matched with that of the connecting column. Further, the arc-shaped anchor ear is rotationally connected with the movable seat on the bottom piece at one end, and is a screw seat with an irregular oval structure, the bottom of the movable seat connected with the screw seat extends inwards into the oil cavity in the bottom piece, and is connected with a sliding block, the tail end of the sliding block is provided with a sliding block piston, the left side of the sliding block piston is fixedly connected with a sliding block spring, and the tail end of the sliding block spring is fixedly arranged at the bottom of the oil cavity. Further, the connecting piece includes the locking head and fixes the locking seat on the bottom piece left side wall, and locking seat and locking head pass through threaded connection, and inside hollow structure that is of two for match the flexible