KR20170003267U - Device for fixing step bolt of telecommunication pole - Google Patents

Device for fixing step bolt of telecommunication pole Download PDF

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Publication number
KR20170003267U
KR20170003267U KR2020160001308U KR20160001308U KR20170003267U KR 20170003267 U KR20170003267 U KR 20170003267U KR 2020160001308 U KR2020160001308 U KR 2020160001308U KR 20160001308 U KR20160001308 U KR 20160001308U KR 20170003267 U KR20170003267 U KR 20170003267U
Authority
KR
South Korea
Prior art keywords
steel pipe
fastening member
circumferential surface
stepped bolt
inner circumferential
Prior art date
Application number
KR2020160001308U
Other languages
Korean (ko)
Inventor
황승욱
Original Assignee
코라이언주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 코라이언주식회사 filed Critical 코라이언주식회사
Priority to KR2020160001308U priority Critical patent/KR20170003267U/en
Publication of KR20170003267U publication Critical patent/KR20170003267U/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The present invention relates to a stepped bolt fixing device for a communication steel pipe which fixes a stepped bolt to be mounted on a steel pipe for communication when necessary, and is constructed as a new stepped bolt fastening device having a bolt tightening structure. And it is an object of the present invention to provide a stepped bolt fixing device for a communication steel pipe which can be easily mounted by hand.

Description

Technical Field [0001] The present invention relates to a stepping bolt for a telecommunication pole,

The present invention relates to a stepped bolt fastening device for a communication steel pipe, and more particularly to a stepped bolt fastening device for a communication steel pipe which can fix a stepped bolt mounted on a steel pipe for communication when necessary.

In general, the steel pipe for communication is provided with a stepped bolt, if necessary, so that the operator can climb on the steel pipe to repair or replace the communication related parts such as the antenna installed on the upper part of the steel pipe.

The end of the step bolt is screwed and fixed to a nut member attached to the outer circumferential surface of the steel pipe so that the worker can stand on the stepped bolt protruding from the outer circumferential surface of the steel pipe and climb to the top of the steel pipe.

FIG. 1 is a perspective view showing a nut member for fixing a step bolt provided in a conventional steel pipe for communication, and FIG. 2 is a sectional view showing a nut member for fixing a step bolt provided in a conventional steel pipe for communication.

1 and 2, the conventional step bolt fixing nut member 100 is welded and fixed to the outer circumferential surface of the communication pipe 1. The nut member 100 is thus fixed to the steel pipe main body 1 1, welding equipment for welding work and safety equipment for the safety of the worker at the time of work are required. In addition, after welding the nut member 100 to the outer circumferential surface of the steel pipe 1, So there is a disadvantage that the work is troublesome and the working time becomes long.

The present invention was conceived in view of the above points, and provides a stepped bolt fastening device for a communication steel pipe which is configured as a new step bolt fastening means with a bolt fastening structure and can be easily mounted on a communication pipe for a communication without any troublesome work equipment It has its purpose.

The present invention provides a stepped bolt fixing device capable of fixing a stepped bolt to a steel pipe for communication, comprising: a first fastening member having an inner threaded portion that can be fastened by inserting an end of a stepped bolt into an inner circumferential surface; And a second fastening member disposed on an outer circumferential surface of the steel pipe and fastened to the outer circumferential surface of the first fastening member passing through the inner circumferential surface of the steel pipe.

According to an embodiment of the present invention, the first fastening member is composed of an upper head portion and a lower bottom portion, and the bottom surface of the head portion is a curved surface that can be brought into close contact with the inner circumferential surface of the steel pipe, From the inner circumferential surface of the penetrating bottom portion to the inner circumferential surface of the head portion which is engaged with the inner circumferential surface of the steel pipe.

According to the embodiment of the present invention, a washer member for increasing the fastening force between the first fastening member and the second fastening member is assembled between the second fastening member and the steel pipe.

According to the present invention, when only the step bolt fastening means composed of the bolts tightening structure of the first fastening member and the second fastening member is prepared, the advantage that can be easily installed manually in the communication steel pipe without the troublesome work equipments and safety equipments as the existing welding equipments .

1 is a perspective view showing a nut member for fixing a step bolt provided in a conventional steel pipe for communication;
2 is a cross-sectional view showing a nut member for fixing a step bolt provided in a conventional steel pipe for communication
3 is a perspective view of a stepped bolt fastening device for a communication steel pipe according to an embodiment of the present invention;
4 is an exploded perspective view showing a stepped bolt fixing device for a communication steel pipe according to an embodiment of the present invention
5 is a cross-sectional view showing a stepped bolt fixing device for a communication steel pipe according to an embodiment of the present invention
6 is a flowchart showing an assembling process of the step-bolt fixing device according to the embodiment of the present invention

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The stepped bolt fastening device for a communication steel pipe according to the embodiment of the present invention is for fixing a stepped bolt (refer to 2 in Fig. 5) serving as a footrest and a step of a worker to the outer circumferential surface of a communication steel pipe main body 1, 3 and 5, the first fastening member 10 and the second fastening member 20 are fastened together by a bolt fastening structure.

The first fastening member 10 is a bolt member composed of an upper head portion 11 and a lower bottom portion 12. The bottom portion 12 penetrates the inner peripheral surface of the steel pipe main body 1, The end portion of the stepped bolt 2 is engaged with the inner circumferential surface of the first fastening member 10 coupled to the second fastening member 20 in this manner, And is fastened.

A hole is formed in the inner circumferential surface of one side of the steel pipe 1 so as to allow the bottom portion 12 to penetrate therethrough and the head portion 11 has a diameter smaller than the diameter of the perforation hole 1a (Or diameter) so as to be hooked on the inner circumferential surface of the steel pipe 1. [

An outer threaded portion 13 for engaging (screwing) the second fastening member 20 is formed on the outer circumferential surface of the bottom portion 12 and a stepped bolt 12 is formed on the inner circumferential surface of the first fastening member 10 (Screw fastening) of the inner thread portion 14 is formed.

At this time, in order to increase the load bearing capacity of the step bolt 2 assembled to the first fastening member 10, the inner thread portion 14 has an inner peripheral surface of the bottom portion 12 passing through the inner peripheral surface and the outer peripheral surface of the steel pipe 1, To the inner circumferential surface of the head portion 11 which is engaged with the inner circumferential surface of the steel pipe 1.

The threaded portion of the threaded fastening structure corresponding to the inner threaded portion 14 of the first fastening member 10 is provided at the end of the stepped bolt 2.

The bottom surface of the head part 11 is formed of a curved surface which can be brought into close contact with the inner circumferential surface of the steel pipe main body 1, that is, a curved surface having a curvature corresponding to the inner circumferential surface curvature of the steel pipe main body 1, And the second fastening member 20 are secured and increased.

The second fastening member 20 is a nut member having a threaded portion for threadedly engaging with the bottom portion 12 of the first fastening member 10 on the inner circumferential surface and has a washer member 30 And is joined to the outer circumferential surface of the bottom portion 12 protruding outside the steel pipe 1.

The washer member 30 is formed in a flat surface which can be in close contact with the second fastening member 20 and the other side is formed into a curved surface which can be brought into close contact with the outer circumferential surface of the steel pipe 1. The second fastening member 20 When the first fastening member 10 is engaged with the first fastening member 10, the second fastening member 20 is loosely fastened to the first fastening member 10 to prevent the second fastening member 20 from being loosened, and between the first fastening member 10 and the second fastening member 20 So that the fastening force can be increased and secured.

Here, the steel pipe (1) is a hollow pipe type communication steel pipe having a length of several meters.

Hereinafter, an assembling step of the step-bolt fixing apparatus constructed as described above will be described as an example with reference to Fig.

6, the bottom portion 12 of the first fastening member 10 is first passed through the inner circumferential surface of the steel pipe 1 to protrude to the outer circumferential surface of the steel pipe main body 1 and the washer member 30 is inserted into the steel pipe main body 1 The second fastening member 20 is screwed to the bottom portion 12 protruding from the outer circumferential surface of the steel pipe main body 1 and assembled.

At this time, the second fastening member 20 is in a state in which the washer member 30 is in close contact with the second fastening member 20 and the outer circumferential surface of the steel pipe 1 and the bottom surface of the head portion 11 of the first fastening member 10 And is fastened to the bottom portion 12 so as to be in close contact with the inner circumferential surface of the steel pipe 1. [

The first fastening member 10 is inserted into the steel pipe main body 1 using a mechanism capable of gripping the first fastening member 10 and then the bottom portion 12 is inserted into the steel pipe main body 1 1 through the perforation hole 1a provided in the inner circumferential surface of the steel pipe 1.

Thereafter, the end portion of the stepped bolt 2 is inserted into the inner circumferential surface of the first fastening member 10 and screwed together according to the operator's needs. At this time, the end of the stepped bolt 2 passes through the inner circumferential surface of the steel pipe main body 1 The end of the step bolt 2 is inserted into the inner circumferential surface of the head part 11 of the first fastening member 10 and fastened.

While certain embodiments of the invention have been described above, the invention is not limited thereto. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: Steel pipe for communication
1a: Perforation hole
2: Stepped bolt
10: first fastening member
11: Head portion
12:
13: outer thread portion
14: Inner thread portion
20: second fastening member
30: Washer member

Claims (4)

A stepped bolt fixing device for fixing a stepped bolt to a steel pipe for communication,
A first fastening member having an inner thread portion that can be fastened by inserting an end portion of the stepped bolt into an inner peripheral surface;
A second fastening member which is disposed on an outer circumferential surface of the steel pipe and is fastened to the outer circumferential surface of the first fastening member passing through the inner circumferential surface of the steel pipe;
And the stepped bolt fastening device is characterized by comprising:
The method according to claim 1,
Wherein the first fastening member comprises a top head portion and a bottom bottom portion and the bottom surface of the head portion is a curved surface that can be brought into close contact with the inner circumferential surface of the steel pipe.
The method of claim 2,
Wherein the inner threaded portion of the first fastening member is formed from an inner circumferential surface of a bottom portion passing through an outer circumferential surface of a steel pipe to an inner circumferential surface of a head portion which is hooked on an inner circumferential surface of the steel pipe.
The method according to claim 1,
And a washer member for increasing a fastening force is assembled between the second fastening member and the steel pipe and between the first fastening member and the second fastening member.
KR2020160001308U 2016-03-11 2016-03-11 Device for fixing step bolt of telecommunication pole KR20170003267U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020160001308U KR20170003267U (en) 2016-03-11 2016-03-11 Device for fixing step bolt of telecommunication pole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020160001308U KR20170003267U (en) 2016-03-11 2016-03-11 Device for fixing step bolt of telecommunication pole

Publications (1)

Publication Number Publication Date
KR20170003267U true KR20170003267U (en) 2017-09-20

Family

ID=60571395

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020160001308U KR20170003267U (en) 2016-03-11 2016-03-11 Device for fixing step bolt of telecommunication pole

Country Status (1)

Country Link
KR (1) KR20170003267U (en)

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