Building steel pipe connecting piece

Abstract

The utility model discloses a building steel pipe connecting piece which comprises a connecting pipe with the two ends capable of being inserted into two butt-joint steel pipes, connecting cylinders matched with the connecting pipe in size are fixed to the two ends of the connecting pipe, a plurality of axial strip-shaped through grooves are evenly formed in the outer side ends of the connecting cylinders in the circumferential direction, and a connecting assembly used for being connected with the steel pipes is arranged in the connecting pipe. A rotating handle capable of driving the connecting assembly is rotationally arranged on the outer wall of the connecting pipe. The device has the beneficial effects that the device is convenient to use and operate, and the connecting assembly can be driven to connect and fasten two butted steel pipes only by operating the rotating handle, so that the construction time is effectively saved, and the construction period is prevented from being influenced; according to the device, the two steel pipes in butt joint have certain sealing performance through the annular boss, and corrosion to the steel pipes due to the fact that concrete, rainwater and the like enter the steel pipes in the construction process is effectively relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a building steel pipe connector. Background Art

[0002] Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. Buildings refer to projects with roofs, beams, columns, walls, foundations, and internal spaces that can meet people's needs for production, living, learning, and public activities. In the construction process, steel pipes are often needed for connection and assembly for construction workers to climb and support, and the connection between steel pipes is generally achieved with the help of steel pipe connectors.

[0003] At present, the connectors in the prior art are inconvenient to use. Most of the connectors are complicated to operate, resulting in a long connection time. It is inconvenient for workers to connect steel pipes, which easily affects the construction period. In order to solve the above problems, we provide a construction steel pipe connector. Utility Model Content

[0004] In order to overcome the problem that the connectors in the prior art are inconvenient to use, most of which are complicated to operate, resulting in a long connection time, inconvenience for workers to connect steel pipes, and easy to affect the construction period, the embodiment of the utility model provides a construction steel pipe connector. The technical solution is as follows:

[0005] A construction steel pipe connector comprises a connecting pipe with both ends capable of being inserted into two butted steel pipes, connecting tubes adapted to the size of the connecting pipes being fixed at both ends of the connecting pipe, a plurality of axial strip-shaped through grooves being uniformly opened in the circumferential direction at the outer end of the connecting tube, a connecting assembly for connecting steel pipes being arranged inside the connecting pipe, and a rotating handle capable of driving the connecting assembly being rotatably arranged on the outer wall of the connecting pipe.

[0006] Furthermore, the connecting assembly includes a fixing frame fixed inside the connecting tube, the fixing frame is rotatably provided with a connecting rod along the length direction of the connecting tube, both ends of the connecting rod are threadedly connected with a round table, the small round surface of the round table faces the inner side of the connecting tube, the limit rod is slidably connected with the round table, a driven bevel gear is fixed in the middle of the connecting rod, one side of the turning handle passes through the tube wall of the connecting tube through a turning rod, and an active bevel gear is fixed on the inner end of the turning rod, and the active bevel gear is meshed with the driven bevel gear; a limiting rod passing through the round table is also fixed on the fixing frame, and this device drives the connecting rod to rotate by operating the turning handle so that the round table squeezes the connecting cylinder, so that the outer wall of the connecting cylinder is tightly pressed against the inner wall of the steel pipe, thereby connecting the two steel pipes.

[0007] Furthermore, the connecting tube is made of a thin steel plate.

[0008] Furthermore, the fixing frame includes a cylinder rotatably connected to the connecting rod, a plurality of supporting rods are circumferentially fixed to the outer wall of the cylinder, and the other end of the supporting rod is fixedly connected to the inner wall of the connecting pipe.

[0009] Furthermore, at least two fixing frames are provided and are evenly fixed inside the connecting pipe, and multiple fixing frames are provided and are evenly and symmetrically arranged, so as to ensure that the overall force of the connecting assembly is even.

[0010] Furthermore, an annular boss is fixed to the middle section of the connecting pipe, and the diameter of the annular boss is larger than the diameter of the connected steel pipe. By making the steel pipe rest against both sides of the annular boss, the corrosion of the steel pipe caused by rainwater, concrete mortar, etc. entering the interior of the steel pipe can be reduced.

[0011] Furthermore, the diameter of the active bevel gear is greater than the diameter of the driven bevel gear, so that the handle can be rotated more easily and with less effort.

[0012] Furthermore, limiting blocks are fixed at both ends of the limiting rod to prevent the truncated table from falling off the limiting rod.

[0013] Furthermore, the diameter of the large circular surface of the truncated cone is larger than the inner diameter of the connecting tube and smaller than the inner diameter of the steel pipe. When there is no internal or external pressure, the outer diameter of the connecting tube is equal to or slightly smaller than the inner diameter of the steel pipe; thereby ensuring that the truncated cone can extend into the interior of the steel pipe and that the connecting tube can be deformed so as to fit tightly against the inner wall of the steel pipe.

[0014] Furthermore, a fastening nut is threadedly connected at the outer end of the rotating rod and located between the connecting tube and the rotating handle. The fastening nut can be tightly attached to the outer wall of the connecting tube to prevent the rotating handle from loosening by friction; or the rotating handle is a rotating handle device with a locking mechanism, which is a prior art and will not be described in detail here.

[0015] The beneficial effects of the technical solution provided by the embodiment of the utility model are: the device is easy to use and operate, and the connecting assembly can be driven to connect and tighten two butted steel pipes only by operating the turning handle, thereby effectively saving construction time and avoiding affecting the construction period;

[0016] The device also makes the two butted steel pipes have a certain sealing property through the annular boss, which effectively reduces the corrosion of the steel pipe caused by concrete, rainwater, etc. entering the steel pipe during the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings used in the embodiments. Obviously, the drawings listed below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the interior of the connecting pipe of an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the use status of an embodiment of the utility model.

[0021] In the accompanying drawings, the components represented by each reference numeral are listed as follows: 1. connecting pipe; 2. connecting cylinder; 3. connecting assembly; 301. fixing frame; 302. connecting rod; 303. limiting rod; 304. round table; 305. driven bevel gear; 306. driving bevel gear; 307. limiting block; 4. turning handle; 5. annular boss; 6. steel pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] See also Figures 1 to 3 The embodiment of the utility model provides a construction steel pipe connector, including a connecting pipe 1 whose two ends can be inserted into two butted steel pipes 6, connecting tubes 2 that are adapted to the size of the connecting pipe 1 are fixed at both ends of the connecting pipe 1, and a plurality of axial strip-shaped through grooves are evenly opened in the circumferential direction at the outer end of the connecting tube 2, a connecting component 3 for connecting the steel pipe 6 is arranged inside the connecting pipe 1, and a rotating handle 4 that can drive the connecting component 3 is rotatably arranged on the outer wall of the connecting pipe 1.

[0024] The connecting assembly 3 includes a fixing frame 301 fixed inside the connecting tube 1, and the fixing frame 301 is rotatably provided with a connecting rod 302 along the length direction of the connecting tube 1, and both ends of the connecting rod 302 are threadedly connected with a round table 304, and the small round surface of the round table 304 faces the inner side of the connecting tube 1, and the limiting rod 303 is slidably connected with the round table 304, and a driven bevel gear 305 is fixed in the middle of the connecting rod 302, and a rotating rod passes through the tube wall of the connecting tube 1 on one side of the rotating handle 4, and an active bevel gear 306 is fixed on the inner end of the rotating rod, and the active bevel gear 306 is meshed with the driven bevel gear 305; a limiting rod 303 passing through the round table 304 is also fixed on the fixing frame 301. The device drives the connecting rod 302 to rotate by operating the rotating handle 4 so that the round table 304 squeezes the connecting tube 2, so that the outer wall of the connecting tube 2 is tightly pressed against the inner wall of the steel pipe 6, thereby connecting the two steel pipes 6.

[0025] Wherein, the connecting tube 2 is made of thin steel plate.

[0026] The fixing frame 301 comprises a cylinder rotatably connected to the connecting rod 302 , and a plurality of supporting rods are circumferentially fixed to the outer wall of the cylinder, and the other ends of the supporting rods are fixedly connected to the inner wall of the connecting pipe 1 .

[0027] At least two fixing frames 301 are provided and are evenly fixed inside the connecting pipe 1 .

[0028] An annular boss 5 is fixed to the middle section of the connecting pipe 1. The diameter of the annular boss 5 is larger than the diameter of the connected steel pipe 6. By making the steel pipe 6 abut against both sides of the annular boss 5, a certain sealing property is formed on the steel pipe 6, thereby reducing the corrosion of the steel pipe 6 by rainwater, concrete mortar, etc. entering the interior of the steel pipe 6.

[0029] The diameter of the driving bevel gear 306 is greater than the diameter of the driven bevel gear 305 .

[0030] Limiting blocks 307 are fixed at both ends of the limiting rod 303 to prevent the round table 304 from falling off the limiting rod 303 .

[0031] The diameter of the large circular surface of the truncated cone 304 is larger than the inner diameter of the connecting tube 2 and smaller than the inner diameter of the steel pipe 6 .

[0032] A fastening nut is threadedly connected at the outer end of the rotating rod and located between the connecting pipe 1 and the rotating handle 4, or the rotating handle 4 is a rotating handle device with a locking mechanism.

[0033] Instructions for use: When using the device, rotate the handle 4 so that the truncated cones 304 at both ends partially extend out of the connecting tube 2, ensuring that the truncated cones 304 do not exert any external support force on the connecting tube 2, and then insert the two ends of the connecting tube 1 into the two steel tubes 6 to be connected, until the ends of the steel tubes 6 are against the end faces of the annular boss 5, and then rotate the handle 4 to drive the active bevel gear 306 to rotate, thereby driving the driven bevel gear 305 to rotate, and then the connecting rod 302 is rotated and the truncated cone 304 is moved inward under the action of the limit rod 303, so that the truncated cone 304 squeezes the inner wall of the connecting tube 2, and then the outer wall of the connecting tube 2 is tightly against the inner wall of the steel tube 6, and the two steel tubes 6 are fixedly connected by friction, and finally the fastening nut is rotated to prevent the handle 4 from loosening by the friction between the fastening nut and the connecting tube 1, or the handle 4 is locked by its own locking mechanism.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A building steel pipe connector, characterized in that: It comprises a connecting tube (1) with two ends capable of being inserted into two butted steel tubes (6), a connecting tube (2) having a size adapted to the connecting tube (1) being fixed at both ends of the connecting tube (1), a plurality of axial strip-shaped through grooves being uniformly formed in the circumferential direction at the outer end of the connecting tube (2), a connecting assembly (3) for connecting the steel tubes (6) being arranged inside the connecting tube (1), and a rotating handle (4) capable of driving the connecting assembly (3) being rotatably arranged on the outer wall of the connecting tube (1); The connecting assembly (3) comprises a fixing frame (301) fixed inside the connecting tube (1); a connecting rod (302) is rotatably arranged on the fixing frame (301) along the length direction of the connecting tube (1); both ends of the connecting rod (302) are threadedly connected with a round table (304); the small round surface of the round table (304) faces the inner side of the connecting tube (1); a limiting rod (303) penetrating the round table (304) is also fixed on the fixing frame (301); the limiting rod (303) is slidably connected to the round table (304); a driven bevel gear (305) is fixed in the middle of the connecting rod (302); one side of the rotating handle (4) passes through the wall of the connecting tube (1) through a rotating rod; a driving bevel gear (306) is fixed to the inner end of the rotating rod; the driving bevel gear (306) is meshed with the driven bevel gear (305).

2. The construction steel pipe connector according to claim 1, characterized in that: The connecting tube (2) is made of a thin steel plate.

3. The construction steel pipe connector according to claim 1, characterized in that: The fixing frame (301) comprises a cylinder rotatably connected to the connecting rod (302), a plurality of supporting rods are circumferentially fixed to the outer wall of the cylinder, and the other ends of the supporting rods are fixedly connected to the inner wall of the connecting pipe (1).

4. The construction steel pipe connector according to claim 1, characterized in that: At least two fixing frames (301) are provided and are evenly fixed inside the connecting pipe (1).

5. The construction steel pipe connector according to claim 1, characterized in that: An annular boss (5) is fixed to the middle section of the connecting pipe (1), and the diameter of the annular boss (5) is greater than the diameter of the connected steel pipe (6).

6. The construction steel pipe connector according to claim 1, characterized in that: The diameter of the active bevel gear (306) is greater than the diameter of the driven bevel gear (305).

7. The construction steel pipe connector according to claim 1, characterized in that: Limiting blocks (307) are fixed at both ends of the limiting rod (303).

8. The construction steel pipe connector according to claim 1, characterized in that: The diameter of the large circular surface of the truncated cone (304) is larger than the inner diameter of the connecting tube (2) and smaller than the inner diameter of the steel pipe (6).

9. The construction steel pipe connector according to claim 1, characterized in that: A fastening nut is threadedly connected at the outer end of the rotating rod and is located between the connecting pipe (1) and the rotating handle (4).

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