KR20140087722A - Connector for scaffold and Manufacturing method - Google Patents

Connector for scaffold and Manufacturing method Download PDF

Info

Publication number
KR20140087722A
KR20140087722A KR1020120158314A KR20120158314A KR20140087722A KR 20140087722 A KR20140087722 A KR 20140087722A KR 1020120158314 A KR1020120158314 A KR 1020120158314A KR 20120158314 A KR20120158314 A KR 20120158314A KR 20140087722 A KR20140087722 A KR 20140087722A
Authority
KR
South Korea
Prior art keywords
body member
steel pipe
bent
steel plate
steel
Prior art date
Application number
KR1020120158314A
Other languages
Korean (ko)
Inventor
이승환
Original Assignee
성호크램프 주식회사
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 성호크램프 주식회사 filed Critical 성호크램프 주식회사
Priority to KR1020120158314A priority Critical patent/KR20140087722A/en
Publication of KR20140087722A publication Critical patent/KR20140087722A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/20—Stiff scaffolding clamps for connecting scaffold members of common shape for ends of members only, e.g. for connecting members in end-to-end relation

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The present invention relates to a connection pin for a steel pipe scaffold and a manufacturing method thereof and, more particularly, to a connection pin for a steel pipe scaffold and a manufacturing method thereof which has a reinforcing groove formed on the outer surface of the connection pin used for the steel pipe scaffold and of which the degree of bending is low in comparison with an external force as a bonding means is used in the reinforcing groove. The connector according to the present invention comprises a body member which is bent in a tubular shape such that both plate-shaped ends are adjacent to each other and face each other and in which a steel pipe is connected to one side or both sides; a reinforcing part having a reinforcing groove on the outer side of the body member by bending both ends of the body member in the inward direction of the body member; and a bonding means which is disposed in the reinforcing groove to prevent both ends of the body member from being separated from each other by external pressure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a connection pin for a steel pipe scaffold,

The present invention relates to a connecting pin for a steel pipe scraper and a method for manufacturing the same, and more particularly, to a connecting pin for a steel pipe scaffold and a method of manufacturing the same, And a method of manufacturing the same.

In general, as shown in FIG. 1, a steel pipe scaffold commonly referred to as 'ASHIBA' at a work site is installed outside the work structure and can be moved by a worker with materials necessary for work. The steel pipe 1 is connected to one side or both sides of the steel pipe 1 in the horizontal, vertical and diagonal directions.

The connecting pin 20 used in the steel pipe scaffold is formed of a pipe having a thickness of about 2 mm in the past and a tubular connecting pin 20 for fixing the steel pipe 1 to the steel pipe 1 ) The engaging groove is drilled through a perforator on one side or both sides.

However, in recent years, in order to prevent a safety accident, the thickness of the connection pin 20 used in the steel pipe scaffold is adjusted upward to a thickness of at least 3 mm, There is a problem that when the drilling machine is used to form the coupling groove, a drastic load is applied to the drilling machine due to its thickness, damage is caused to the drilling blade or the drilled end of the drilling hole is drilled smoothly, It is not easy to provide the above.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the problems of the prior art, and it is an object of the present invention to provide a method of manufacturing a steel pipe, which is safe because a connection pin used for a steel pipe scaffold is less resistant to external force, And to provide a connection pin of good quality.

In order to solve the above-mentioned technical problems, the present invention is characterized in that, in order to solve the above-mentioned technical problems, the present invention is characterized in that a body member, which is formed by bending a circular tube shape so that both ends thereof face each other next to each other, A reinforcing portion formed on an outer surface of the body member by bending the body member inwardly, and adhesive means provided in the reinforcing groove to prevent both ends of the body member from spreading due to external pressure.

The body member may include a tubular body, and at least one or more connecting grooves formed on one or both sides of the tubular body.

The body member may further include a ring-shaped stopper inserted into the body.

Preferably, the reinforcing portion is bent into the body member such that both ends thereof abut against each other.

Further, it is preferable that the bonding means is any one of arc welding, gas welding, and fatigue welding.

Also, as a method of manufacturing the connecting pin according to the present invention,

1) cutting a steel plate formed in a longitudinal direction; 2) forming engagement grooves at both ends of the steel plate, respectively, and joining the steel plate with a bent surface formed by bending a predetermined angle at the upper and lower ends of the steel plate, Bending the steel sheet so that the bottom of the steel sheet has a semi-circular shape after completion of the step 2), and 4) bending both sides of the steel sheet after the step 3) A step of bending the steel sheet into a tubular shape; and 5) an adhesion step of welding the steel sheet having the tubular shape after the step 4) so as to prevent the bent surfaces from being separated from each other.

According to the present invention, a reinforcing groove is formed on an outer surface of a connecting pin used for a steel pipe scaffold, and a connection pin having a degree of warping against an external force is provided to the reinforcing groove by an adhesive means.

1 is a view showing a conventional steel pipe scaffold connection structure;
2 is a perspective view of a connection pin for a steel pipe scaffold according to the present invention.
3 is a side view of a connection pin for a steel pipe scaffold according to the present invention;
4 is a cross-sectional view taken along the line AA '
5 is a block diagram showing a step of manufacturing a connection pin for a steel pipe scaffold according to the present invention.
Figure 6 is a flow chart for Figure 5;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a connection pin for a steel pipe scaffold according to a preferred embodiment of the present invention (hereinafter referred to simply as a connection pin for a steel pipe scaffold) will be described with reference to the accompanying drawings.

2, the connecting pin 100 according to the present invention includes a body member 110 to which a steel pipe 10 is coupled at one side or both sides thereof, and a groove (not shown) formed on the outer surface of the body member 110 And reinforcing part 120. The reinforcing part 120 includes a reinforcing part 120 and a bonding part 130 provided on the reinforcing part 120. As shown in FIG.

More specifically, the body member 110 is configured to connect a plurality of steel pipes 10 used as a framework to form a steel pipe scaffold. The body member 110 includes a body 111, an engagement groove 112, and a stopper 113, .

Here, the body 111 is formed into a circular tube shape by bending a plate shape having a predetermined width in the initial longitudinal direction. The body 111 is formed to have a circular or polygonal shape as a whole, and the diameter and shape of the outer surface are formed to be equal to or smaller than the diameter and shape of the inside of the steel pipe 10. At this time, it is preferable that the thickness of the longitudinal section of the body 111 is at least 3 mm or more so as to be strong enough to warp the weight of the steel pipe 10 to be joined or an external force externally applied.

At least one or more holes are formed in one or both sides of the body 111 to engage with the projections 10a formed in the steel pipe. The coupling groove 112 is formed to extend from the end of the body 111 so as to be easily fixedly coupled to the projection 10a formed in the steel pipe 10 and can prevent the projection 10a from being detached from the body 111 So as to be bent at a right angle. Although not shown in the drawing, the coupling groove 112 may be formed at one or both sides of the steel pipe 10 to be fixedly coupled to the body 111. The protrusion 10a may be formed on the outer surface of the body 111 It is preferable that they are protruded.

The stopper 113 is formed so as to have a ring shape as a whole, and is inserted to be positioned at the center of the body in the longitudinal width direction of the body 111. At this time, the inner diameter of the stopper 113 is preferably equal to the outer diameter of the body 111.

The reinforcing portion 120 is configured to be strong enough to bend the body 111 against an external force applied to the body 111 and includes a reinforcing groove 123.

3, each of the reinforcing grooves 123 has a curved surface 121 so that both ends 122 extending from the front end to the rear end of the body 111 can have a predetermined angle into the inside of the body 111, So that a groove is formed on the outer surface of the body 111 inwardly. At this time, the bent ends 122 are preferably bent into the body 111 so as to contact with each other, so that the debris of the bonding means 130 bonded by welding or the like is prevented from flowing into the body 111.

The inner depth of the reinforcing groove 123 is preferably about 4 to 5 mm in relation to the outer diameter of the body 111.

In addition, both ends 122 of the reinforcing part 120 of the adhesive means 130 are prevented from spreading. The bonding means 130 allows welding of the inside of the reinforcing groove 123 so that each of the bent surfaces 121 becomes integral with each other. At this time, any one of the welding methods such as electric welding, gas welding, and fattening welding is used for the welding means 130, and the bonding means 130 is a steel pipe 10 inserted into the outer surface of the body 111 It is preferable to perform the welding at a height not exceeding the outer diameter of the body 111. [

4, the connection pin 100 according to the present invention having the above-described structure is differentiated from the conventional art by the adhesion of the bonding means 130 provided on the body 111, (Curvature) is low even if an external force is exerted in any direction of the connection pin 100, so that the reinforced connection pin 100 can be prevented from being damaged, It is possible to provide the effect.

Hereinafter, a connection pin manufacturing method according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 5, the method for manufacturing a connecting pin according to the present invention includes a step (S100) of cutting a steel sheet, a step S200 of forming a joining groove in the cut steel sheet, A step S400 of bending the lower part of the steel plate with the coupling groove and the bent surface in a semicircular shape S400 of bending the upper part of the bent steel plate and bending the steel plate into a circular tube shape S500 And a step S600 of adhering both ends of the steel sheet bent in a tubular shape.

More specifically, as shown in Fig. 6, the steel sheet P extending in the horizontal lengthwise direction is cut into a composition length by using a blade C or the like (see Fig. 6 (a)).

Then, the steel plate P is cut so that the engaging groove 112 can be formed on one side or both sides of the steel plate P cut to a predetermined length (see FIG. 6B)

Then, the upper and lower ends of the steel plate P on which the coupling grooves 112 are formed are pressed so as to bend upward to form a bent surface 121 at a predetermined angle (refer to FIG. 6C). At this time, It is preferable that the engaging groove 112 and the bent surface 121 formed on the substrate P are simultaneously formed to shorten the process time.

Then, the center of the steel plate P in the longitudinal direction of the horizontal width is pressed to bend the lower portion of the steel plate P into a semicircular shape so as to form a U-shape as a whole (see FIG.

Then, the upper part of the first bent steel plate P is pressed through a press or the like to bend the steel plate P so as to have a tubular shape (see FIG. 6E). At this time, Are formed so as to be in contact with each other so that the reinforcement grooves 123 are formed on the outer surface of the steel plate P which is bent in a tubular form.

Lastly, the connection pin 100 according to the present invention is completed when the reinforcing groove 123 formed by contacting both ends 122 of the bent surface 121 is bonded to the inside of the reinforcing groove 123 by means of an adhesive 130 such as welding. 6f)

According to the method of manufacturing a connecting pin according to the present invention, the connecting pin 100 having a tubular shape is drilled differently from the conventional technique, and the connecting pin 100 is manufactured without forming the connecting groove 112 And the end of the cutting edge of the engaging groove 112 is smoothly cut off in a state of being cut in the form of a plate-like steel plate P for the steel plate P, Thereby providing an effect of providing a good quality article.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the spirit and scope of the invention are not limited to these specific embodiments, but that various changes and modifications may be made without departing from the spirit of the invention, If you are a person, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

10: steel pipe 100: connecting pin
110: body member 111: body
112: coupling groove 120: reinforcing portion
121: bent surface 122: end
123: reinforcement groove 130: adhesive means
P: Steel plate

Claims (6)

A body member that is bent in a circular tube shape so that both ends of the plate shape are opposed to each other and facing each other, and a steel pipe is coupled to one side or both sides;
A reinforcing portion formed at both ends of the body member to bend inwardly of the body member to form a reinforcing groove on an outer surface of the body member; And
And adhesive means provided in the reinforcing groove to prevent both ends of the body member from spreading due to an external pressure.
The method according to claim 1,
The body member
Tubular body; And
And at least one or more connecting grooves formed on one or both sides of the steel pipe for forming the steel pipe.
3. The method of claim 2,
The body member
And a ring-shaped stopper inserted into the outer surface of the body.
The method according to claim 1,
The reinforcing portion
And the ends of the body member are bent so as to be in contact with each other.
The method according to claim 1,
The adhesive means
Arc welding, gas welding, and fatigue welding.
1) cutting a steel plate formed in a longitudinal direction;
2) forming engaging grooves at both ends of the steel plate, each of which engages with a steel pipe, and a bent surface formed at an upper end and a lower end of the steel plate, respectively,
3) bending the lower part of the steel plate after the step 2) so as to have a semicircular shape;
4) bending the steel sheet into a tubular shape by bending both sides of the steel sheet so that the folded surfaces are in contact with each other after completing the step 3); And
5) A method of manufacturing a steel pipe scaffolding connection pin according to claim 4, wherein the step 4) is performed so as to prevent the bent surfaces of the steel plate having a tubular shape from being separated from each other.
KR1020120158314A 2012-12-31 2012-12-31 Connector for scaffold and Manufacturing method KR20140087722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120158314A KR20140087722A (en) 2012-12-31 2012-12-31 Connector for scaffold and Manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120158314A KR20140087722A (en) 2012-12-31 2012-12-31 Connector for scaffold and Manufacturing method

Publications (1)

Publication Number Publication Date
KR20140087722A true KR20140087722A (en) 2014-07-09

Family

ID=51736597

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120158314A KR20140087722A (en) 2012-12-31 2012-12-31 Connector for scaffold and Manufacturing method

Country Status (1)

Country Link
KR (1) KR20140087722A (en)

Similar Documents

Publication Publication Date Title
JP6386616B1 (en) Method for repairing and reinforcing vertical joints in steel structures, and reinforcing material for vertical joints
KR101735069B1 (en) Socket type steel pipe without expanding end
JP6394180B2 (en) Steel pipe sheet pile joint structure
KR20140087722A (en) Connector for scaffold and Manufacturing method
JP5950397B2 (en) Column-beam joint bracket
JP5764909B2 (en) Steel sheet pile and steel sheet pile wall formed by the steel sheet pile
KR101508550B1 (en) A rail connector for build pipe scaffold
KR101765569B1 (en) Coupler for Steel Reinforcement and Manufacturing Method thereof
WO2009022507A1 (en) Joining method and method of manufacturing joint structure
KR20140122692A (en) A jointing structure of round pipe
CN204112495U (en) A kind of clamp connection structure of firm connection
JP4933316B2 (en) Eaves inner joint
JP2018021436A (en) Building structure
EP2466016A1 (en) Frame assembly and a method of manufacturing thereof
KR101423876B1 (en) A jointing structure of round pipe
JP5363088B2 (en) Eaves double fitting
KR101253313B1 (en) Truss joint for truss structure and method of the same
CN104074279A (en) Connecting structure applicable to connection of I-shaped steel bars and T-shaped steel bars
JP6119879B2 (en) Combined steel sheet pile installation jig and combined steel sheet pile installation method
JP6390284B2 (en) Beam-column joint structure
JP2019060103A (en) Pipe connecting tool
JP6964537B2 (en) Bracing connection hardware for wooden buildings
CN213982509U (en) Pipeline robot well entering tool
JP2009221773A (en) Bent joint and connection method therefor
KR20130047351A (en) Abacus of vessel blocking, stepped pulley adjustment plate type jig for welding frame and welding method using these

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E601 Decision to refuse application