Self-locking type quick butt-joint chuck for scaffold

Abstract

The utility model discloses a quick butt-joint chuck of a self-locking scaffold, and relates to the technical field of construction equipment. The device comprises an octagonal base block and a scaffold improved steel pipe with locking holes formed in the ends, horn-shaped bayonets are formed in the side faces of the base block, and self-locking ejector pins driven by springs are arranged in the base block. During installation, the steel pipe is inserted into the bayonet to push the thimble to retract, and the thimble round head is automatically embedded into the locking hole to realize fixation after the thimble is in place; during dismounting, the steel pipe can be separated by synchronously pulling out the ejector pin through the linkage pull rope. Traditional bolt fastening is replaced by a mechanical self-locking structure, the problems that high-altitude operation efficiency is low and nuts are prone to falling off are solved, and the self-locking device has the advantages of being fast to disassemble and assemble, resistant to vibration and high in bearing capacity and is suitable for complex construction scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building equipment, especially to a self-locking scaffold quick butt joint chuck. BACKGROUND

[0002] The scaffold used in building construction is built up by buckling one steel pipe after another, and the traditional scaffold building needs to tighten the bolt of the scaffold buckle with a wrench, which is low in efficiency of high-altitude operation and has the risk of nut falling off.

[0003] Therefore, the self-locking scaffold quick butt joint chuck is designed to quickly complete the building without the risk of falling off. SUMMARY

[0004] The utility model provides a self-locking scaffold quick butt joint chuck to make up for the deficiency in the prior art.

[0005] A self-locking scaffold quick butt joint chuck, comprising an octagonal base block and a scaffold improved steel pipe, characterized in that:

[0006] The octagonal base block is an octagonal body, and the eight sides are all provided with a bayonet, and the scaffold improved steel pipe is locked immovably by the self-locking thimble arranged in the octagonal base block after being inserted into the bayonet, and the scaffold improved steel pipe can be quickly disassembled after pulling the self-locking thimble.

[0007] Further, in order to better realize the utility model, the end of the scaffold improved steel pipe is provided with a plurality of half-through holes as locking holes, and the self-locking thimble is inserted into the locking hole.

[0008] Further, in order to better realize the utility model, the back of the octagonal base block is welded with a reinforcing rib.

[0009] Further, in order to better realize the utility model, the bayonet in the octagonal base block is a hole with a large outer diameter and a small inner diameter, and a stepped hole is formed in the front face of the octagonal base block and connected to the bayonet, and the self-locking thimble is arranged in the stepped hole and can be moved.

[0010] Further, in order to better realize the utility model, the self-locking thimble comprises an integral cylindrical body, one end of the cylindrical body inserted into the bayonet is provided with a round head, which facilitates the process of inserting the scaffold improved steel pipe and pushing away the self-locking thimble, and the round head is embedded into the locking hole after the scaffold improved steel pipe is inserted into place, a snap ring is fixed in the middle of the cylindrical body, a spring is sleeved on the snap ring, and the spring is located between the snap ring and the stepped hole.

[0011] Further, in order to better realize the utility model, the end of the cylinder of the self-locking thimble extends to the outside of the octagonal base block, and is fixedly connected with a pull ring, the pull ring is connected with a pull rope, the pull rope is connected with all the pull rings through annular arrangement, and single-action synchronous unlocking is realized.

[0012] The utility model has the advantages of:

[0013] During installation, the steel pipe is inserted into the bayonet to push the thimble to retract, and after reaching the position, the thimble head is automatically embedded into the locking hole to realize fixing; during disassembly, the thimble can be pulled out synchronously through the linkage pull rope, so that the steel pipe can be separated. The utility model replaces the traditional bolt fastening with a mechanical self-locking structure, solves the problems of low efficiency of high-altitude operation and easy falling of nuts, has the advantages of quick disassembly and assembly, vibration resistance and high bearing capacity, and is suitable for complex construction scenes. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an installation structure diagram of the utility model;

[0015] Figure 2 It is a structure diagram of the improved steel pipe of the scaffold of the utility model;

[0016] Figure 3 It is a three-dimensional structure diagram of the utility model;

[0017] Figure 4 It is a three-dimensional structure diagram of the utility model;

[0018] Figure 5 It is a sectional view of the utility model;

[0019] Figure 6 It is a sectional view of the utility model;

[0020] Figure 7 It is a three-dimensional structure diagram of the self-locking thimble of the utility model.

[0021] In the drawings,

[0022] 1, octagonal base block, 2, improved steel pipe of scaffold, 3, self-locking thimble, 4, pull rope, 101, reinforcing rib, 102, bayonet, 103, stepped hole, 201, locking hole, 301, round head, 302, clasp, 303, spring, 304, pull ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0025] Figures 1-7 For the first embodiment of the application, the embodiment is a self-locking scaffold quick butt joint chuck.

[0026] 1. Structural parameters

[0027] The octagonal base block 1 is cast from Q235 steel, with a single side length of 50 mm and a thickness of 12 mm. A reinforcing rib 101 or a plurality of cross-reinforcing ribs 101 is welded on the back surface, with a rib width of 10 mm and a height of 8 mm.

[0028] The bayonet 102 is a horn-shaped hole with an outer diameter of 42 mm and an inner diameter of 35 mm, and a depth of 60 mm.

[0029] The self-locking needle 3 is a 45# steel cylinder with a diameter of 8 mm. The round head 301 has a diameter of 12 mm. The spring 303 is made of stainless steel, with an elastic coefficient of 5 N / mm and a compression stroke of 15 mm.

[0030] The scaffold improved steel pipe 2 has eight half-through holes as locking holes 201 evenly arranged on the circumference at the end portion. The hole diameter is 10 mm, and the depth is 5 mm.

[0031] 2. Operation steps

[0032] Installation: align the scaffold improved steel pipe 2 with the bayonet 102 and insert it. The end of the steel pipe extrudes the round head 301 of the self-locking needle 3, and the needle retracts under the action of the spring 303.

[0033] Locking: when the steel pipe is completely inserted to the bottom of the bayonet, the round head 301 of the self-locking needle 3 is embedded in the locking hole 201 under the spring thrust, and the automatic locking is completed.

[0034] Dismounting: pull the pull ring 304 at the end of all self-locking needles 3 synchronously through the pull rope 4, so that the round head is separated from the locking hole 201, and the steel pipe can be pulled out.

[0035] 3. Application scenarios

[0036] It is suitable for high-rise building facade construction. A single chuck can connect 8 steel pipes at the same time, and the construction efficiency is improved by 60% compared with traditional bolt buckles. Through load testing, the bearing capacity of a single chuck node is ≥5kN, which meets the requirements of JGJ130-2011 specification.

[0037] Example 2: Extended variant

[0038] The octagonal base block is changed into a hexagonal base block, 6 notches are opened on the side surface, a light scaffold system is adapted, a rust-proof coating is additionally arranged on the self-locking needle 3, and the spring 303 is replaced by a corrosion-resistant silicon manganese steel material, which is suitable for construction in a humid environment.

[0039] Finally, it should be explained that the above examples are only used to illustrate the technical solutions of the present application, but not to limit it, and other modifications or equivalent replacements of the technical solutions of the present application made by those skilled in the art should be covered in the scope of the claims of the present application, as long as they do not deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A self-locking scaffold quick docking chuck, comprising an octagonal base block (1) and a scaffold improved steel pipe (2), characterized in that: the octagonal base block (1) is an octagonal body, and a bayonet (102) is formed on each side face of the octagonal base block (1); the scaffold improved steel pipe (2) is inserted into the bayonet (102) and is locked by a self-locking needle (3) arranged in the octagonal base block (1); and the scaffold improved steel pipe (2) can be quickly disassembled by pulling the self-locking needle (3).

2. The self-locking scaffold quick docking chuck according to claim 1, characterized in that: a plurality of half-holes are formed on the end of the scaffold improved steel pipe (2) as locking holes (201), and the self-locking needle (3) is inserted into the locking holes (201).

3. The self-locking scaffold quick docking chuck according to claim 1, characterized in that: a reinforcing rib (101) is welded on the back of the octagonal base block (1).

4. The self-locking scaffold quick docking chuck according to claim 1, characterized in that: the bayonet (102) in the octagonal base block (1) is a horn-shaped hole with a large outer diameter and a small inner diameter; a stepped hole (103) is formed on the front face of the octagonal base block (1) and communicates with the bayonet (102); and the self-locking needle (3) is movably arranged in the stepped hole (103).

5. The self-locking scaffold quick docking chuck according to claim 4, characterized in that: the self-locking needle (3) comprises an integral cylindrical body, a round head (301) is arranged at one end of the cylindrical body inserted into the bayonet (102), which facilitates the self-locking needle (3) to be pushed away during the insertion of the scaffold improved steel pipe (2); the round head (301) is embedded into the locking hole (201) after the scaffold improved steel pipe (2) is inserted into position; a clasp (302) is fixed in the middle of the cylindrical body; a spring (303) is sleeved on the clasp (302); and the spring (303) is located between the clasp (302) and the stepped hole (103).

6. The self-locking scaffold quick docking chuck according to claim 5, characterized in that: the end of the cylindrical body of the self-locking needle (3) extends out of the octagonal base block (1) and is fixedly connected with a pull ring (304); the pull ring (304) is connected with a pull rope (4); the pull rope (4) is connected with all the pull rings (304) through annular arrangement, and single-action synchronous unlocking is realized. ​ ​ ​ ​ ​ ​

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