CN110700556A - Horizontal cross bar of scaffold and production method thereof - Google Patents

Abstract

The invention discloses a horizontal cross bar of a scaffold and a production method thereof, wherein the production method comprises the following steps: including the body and the plug-in components of setting at the body both ends, the plug-in components include the installation department and along the installation department radial direction outwards extend be used for connecting participating in of montant, the tip pipeline section of body is provided with presss from both sides the groove, the installation department nestification of plug-in components is in the tip inner chamber of body, it participates in the double-layered inslot of arranging the body in, its front end stretches out to the body outside, body tip pipe wall inwards bends and presses the installation department that forms the clamp and embrace the plug-in components, the body passes through the clamp and presss from both sides the groove with plug-in components fastening connection, the front end of clamp is personally submitted the arc that corresponds with circular montant extrados, adopt above-mentioned structure, the welding of traditional member has been replaced, combine its production method simultaneously, the production process is simplified, reduce the manufacturing difficulty.

Description

Horizontal cross bar of scaffold and production method thereof

Technical Field

The invention relates to the field of construction tools, in particular to a horizontal cross bar structure of a scaffold and a production method thereof.

Background

The scaffold is a working platform which is erected for ensuring that each construction process is smoothly carried out. As is well known, along with the progress of science and technology and the development of society, more and more people use the shell type steel pipe scaffold to produce in the building industry, the shell type steel pipe scaffold is formed by mutually erecting a horizontal cross rod and a vertical rod, a buckle disc is arranged on the vertical rod, and end connectors capable of being installed in the buckle disc in an inserted mode are welded at the two ends of the horizontal cross rod.

One of them traditional horizontal cross bar structure, be at the both ends welding plug-in components of body, this plug-in components have with the montant correspond connect inlay the cambered surface with peg graft participate in on the dish is buckled, the horizontal cross bar of this kind of structure, the defect that exists is, because the connection between plug-in components and the body needs the welding, not only work efficiency is low, and the environmental protection requirement that improves daily is difficult to better satisfy, in addition, this kind of welded structure, if the condition of rosin joint appears, still can have the potential safety hazard that the desoldering is deviate from between plug and the body, consequently, provide more high-efficient, safer, the horizontal cross bar of more environmental protection has become an important subject.

In addition, this patent application proposes need solve additional problem for a time and is, furtherly, in the open document that patent application number is CN201030196700.5, its end joint is mainly to be through one and be banding billet through punch press bending, make the middle part of billet buckle into the round hole, its both ends are close to the laminating each other, thereby obtain the rudiment of end joint, the billet both ends of participating in of constituteing the end joint this moment still are in free state, when end joint load atress, the both ends of billet can freely separate, when the end joint is installed on horizontal pole, horizontal pole inserts in the round hole, make round hole press from both sides behind the tight horizontal pole to weld the both ends of end joint and the contact position of round hole and horizontal pole, make end joint and horizontal pole erection forming. The end joint has various installation procedures and long processing time, welding rods are required to be used for welding and fixing the end joint, the welding cost is high, the current environmental protection requirement is improved, and a large amount of welding operation is not in line with the production environmental protection requirement gradually.

And in the in-process of dismantling the scaffold, when the end joint falls to the ground from higher scaffold, the end joint leads to the welding bead on participating in because of receiving great impact force and drops easily or not hard up for the welding constitutes freely to part at the billet both ends of participating in together, thereby leads to the end joint to damage easily, has shortened its normal life.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a horizontal cross bar structure of a scaffold, which can simplify the production process, reduce the manufacturing difficulty and reduce the cost.

In addition, the invention also provides a production method of the horizontal cross bar structure of the scaffold.

According to the embodiment of the first aspect of the invention, the horizontal cross bar of the scaffold comprises a pipe body and plug-in units arranged at two ends of the pipe body, each plug-in unit comprises an installation part and a pin extending outwards along the radial direction of the installation part and used for connecting a vertical rod, a clamping groove is formed in an end pipe section of the pipe body, the installation part of each plug-in unit is nested in an end inner cavity of the pipe body, the pin is arranged in the clamping groove of the pipe body, the front end of the pin extends out of the pipe body, the pipe wall of the end part of the pipe body is bent inwards to form the installation part of the plug-in unit clamped by a clamp body, the pipe body tightly connects the plug-in units through the clamp body and the.

The horizontal cross bar of the scaffold provided by the embodiment of the invention at least has the following beneficial effects: through the plug-in components nested install in the clamp of horizontal pole tip, the clamp forms the extrusion to the installation department of plug-in components and embraces the clamp to the plug-in components is under the restriction that presss from both sides the groove, and the installation department with press from both sides and embrace the device and firmly cooperate, adopt above-mentioned structure, replaced the welding of traditional member and joint, simplify production processes, reduce the manufacturing degree of difficulty, reduce cost has also avoided the environmental protection problem because the welding brings simultaneously.

According to the horizontal cross bar of the scaffold of some embodiments of the present invention, the inner wall of the clip body is elastically abutted with the outer wall of the mounting portion.

According to some embodiments of the horizontal cross bar of the scaffold, the clamp body is formed by tightly bending and pressing the pipe wall at the end part of the pipe body and the installation part, the pipe body is tightly clamped with the installation part, and the clamp body of the pipe body is fixedly connected with the bending and pressing deformation part formed on the installation part.

According to some embodiments of the invention, the horizontal cross bar of the scaffold is made of sheet metal through bending, the pins of the horizontal cross bar are formed by bending and overlapping two adjacent folded sections of a metal plate, the tail parts of the folded sections are respectively bent to form semicircular arc parts of the mounting part, and the two semicircular arc parts are spliced to form the mounting part.

According to some embodiments of the horizontal cross bar of the scaffold, the pin is provided with a through hole opposite to the pin hole of the vertical rod.

According to some embodiments of the horizontal cross bar of the scaffold, the front end edge of the clamping groove far away from the pipe body is bent and formed with two inward opposite convex parts for clamping the pins in the clamping groove.

According to the horizontal cross bar of the scaffold, the clamp body is provided with the concave part, and the mounting part is provided with the positioning part matched with the concave part.

According to the horizontal cross bar of the scaffold of some embodiments of the present invention, the U-shaped front end surface of the clamp body is formed with 4 corner protrusions.

According to the horizontal cross bar of the scaffold, the pipe body on the rear side of the mounting part of the plug-in part is provided with the concave ring.

According to other embodiments of the present invention, the method for producing the horizontal ledger of the aforementioned scaffolding is characterized in that: the method comprises the following steps of,

1) punching the two ends of the pipe body to enable the end part of the pipe body to be smooth, and punching the clamping grooves on the side wall of the pipe body;

2) placing a plug-in unit with an installation part and plug pins in an inner cavity at the end part of the tube body, wherein the plug pins are clamped in the clamping grooves, and positioning the plug-in unit;

3) the two ends of the pipe body are punched, the cut of the pipe section at the end part of the pipe body is inwards turned along the radial direction, the pipe wall at the end part of the pipe body is inwards bent and pressed to form a clamping body, the clamping body is right for the plug-in unit, the mounting part is clamped in a holding manner, so that the plug-in units on two sides are mounted and fixed on the pipe body, the front end of the clamping body is in an arc shape corresponding to the outer arc surface of the circular vertical rod, and the production and manufacturing of the horizontal cross.

The production method of the rod structure of the scaffold provided by the embodiment of the invention at least has the following beneficial effects: the welding of the traditional rod piece and the joint is replaced, the production process is simplified, the manufacturing difficulty is reduced, the cost is reduced, and meanwhile, the environmental protection problem caused by welding is also avoided.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is a schematic view of the fitting prior to unbending assembly of the insert and the tube;

FIG. 5 is a schematic view of an installation state of the embodiment of the present invention;

fig. 6 is a schematic diagram of an internal structure according to an embodiment of the present invention.

The plug-in connector comprises a pipe body 100, an insert 200, a clamp body 121, a clamp groove 122, a mounting portion 210, a pin 220, a through hole 221, a convex portion 123, an inner concave portion 124, a positioning portion 213, an angular protrusion 125, an arc portion 211, a gap 212, an inner concave ring 128, a vertical rod 300 and a pin hole 301.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 6, a horizontal rail structure of a scaffolding according to an embodiment of the first aspect of the present invention includes a tubular body 100 and an insert 200 installed at an end of the tubular body 100, and the tubular body 100 may have a circular or square sectional shape.

The insert 200 includes a mounting portion 210 and a pin 220 extending outward in a radial direction of the mounting portion for connecting to the vertical rod 300.

The end portion of the pipe body 100 is provided with a clamping groove 122, and the clamping groove 122 is formed by cutting the two ends of the pipe body 100.

The installation part 210 of the plug-in is nested in the end inner cavity of the tube body 100, the pins 220 are arranged in the clamping grooves 122 of the tube body 100, the front end of the pins extends out of the tube body 100, the tube wall of the end part of the tube body 100 is bent inwards to form the clamp body 121 (indicated by a dotted line in the figure and referred to as a transition line of bending deformation), the clamp body 121 clamps the installation part 210 of the plug-in 200, the tube body fastens and connects the plug-in 200 through the clamp body 121 and the clamping grooves 122, and the front end of the clamp body 121 is in an arc shape corresponding to the outer arc surface of the circular vertical rod 300, namely, the front end of the clamp.

Further, the inner wall of the clip body 121 elastically abuts the outer wall of the mounting portion 210, and the clip body 121 presses the mounting portion 210 of the card 200 to elastically contact the clip body 121 and the mounting portion 210, so that the clip body is firmly mounted by the elasticity between metals.

The clamp body 121 is formed by tightly bending and pressing the pipe wall of the end of the pipe body 100 and the mounting part 210, the pipe body 100 is tightly clamped and embraced with the mounting part 210, and the clamp body 121 of the pipe body 200 is fixedly connected with a bending and pressing deformation part formed on the mounting part 210.

Specifically, the plug-in 200 is made of metal, specifically, is made of sheet metal by bending, and the plug pins 220 are formed by bending and stacking two adjacent folded sections of the metal plate, the tails of the folded sections are respectively bent to form a semicircular arc portion of the mounting portion 210, and the two semicircular arc portions are spliced to form the mounting portion 210. This structure, not only cancelled the most traditional casting mode, moreover, because its position of participating in 220, directly two sections transition bending superposes of bending form, need not to carry out welded connection with two leg pieces, has strengthened the mechanical strength who participates in 220, makes scaffold frame installation back firm stable to installation department 210 constitutes through two arc portions 211, makes installation department 210 have elasticity, further utilizes the elasticity between the metal to make its installation firm. In other embodiments, the mounting portion 210 may be configured in a triangular shape, a cross shape, a rectangular shape, etc., and the mounting portion 210 with the above-mentioned shape is mounted in the tube 100 in a clamped manner, a hot press bending manner, etc., all of which are within the scope of the present application.

In addition, according to the horizontal rail structure of the scaffolding according to some embodiments of the present invention, the ends of the two arc-shaped portions 211 are simply spliced without welding, and a gap 212 may exist. The two arc-shaped parts 211 can move in the range of the gap 212, and the gap 212 provides deformation allowance for the mounting part 210, so that excessive deformation caused by stamping is avoided, and the service life of the plug-in 200 is prolonged.

Further, in order to facilitate the assembly and fixation of the scaffold, the through hole 221 opposite to the pin hole 301 of the vertical rod 300 is formed in the pin 220, and in actual work, when the through hole 221 is opposite to the pin hole 301 of the vertical rod, namely, the cross rod and the vertical rod 300 are installed in place, the production site can be conveniently checked and installed, and safety accidents are reduced.

Furthermore, the front end edge of the clamping groove 122 far from the tube body is bent and pressed to form two inward opposite convex portions 123 for fastening the pins in the clamping groove 122. When the clamping groove 122 is pressed and then turned inwards towards the middle part, the two convex parts 123 clamp the plug-in unit 200 in a holding manner, so that the plug-in unit 200 is limited and the plug-in unit 200 is prevented from being separated.

In addition to the above structure, a welding connection may be further performed between the clip groove 122 and the insert 200. It is also one of the means of the present invention to weld the two protrusions 123 to the root of the pin 220 or weld the edge of the clamping groove 122 to the pin 220, so that the connection between the tube 100 and the insert 200 is more stable.

Further, the clip body 211 may be provided with an inner recess 124, and the mounting portion 210 may be provided with a positioning portion 213 engaged with the inner recess 124. After the insert 200 is mounted in the clip body 211, the inner concave part 124 on the clip body 211 is embedded into the positioning part 213 on the outer wall of the mounting part 210 to form positioning, so that the finished insert 200 and the tube body 100 cannot deflect, the positioning precision between the insert 200 and the tube body 100 is improved, and the manufacturing quality is ensured.

Further, according to the pole structure of the scaffold according to some embodiments of the present invention, the end surface of the clamp body 121 is an arc surface that is fitted into the arc-shaped vertical surface of the vertical pole 300, and the end surface of the clamp body 121 is provided with 4 angular protrusions 125. As shown in fig. 5, when the cross bar is mounted in butt joint with the vertical bar 300, the end surface of the clamp body 121 is attached to the side surface of the vertical bar 300, and the 4 angular protrusions 125 on the end surface of the clamp body abut against the side surface of the vertical bar, so that the end of the pipe body 100 and the side surface of the vertical bar 300 do not slide, and the safety of workers during construction and use is enhanced.

In addition, further, in order to make the plug-in unit more firm, it can not swing back and forth, under the limiting action of the front end with clamp 121 and/or inner concave part 124, locating part 213, can also set up the inner concave ring 128 around the tube body of the installation department 213 rear side of the plug-in unit, can carry on the spacing to the back of the installation department 210, better prevent swinging.

A method for producing a horizontal rail for scaffolding according to further embodiments of the present invention, with reference to fig. 1-4, may be implemented as follows:

1) as shown in fig. 4, both ends of the tube 100 are punched to make the end cut flat, and a clamping groove 122 is punched on the side wall of the tube;

2) placing the plug-in unit 200 with the mounting part 210 and the pins 220 in the inner cavity of the end part of the tube body 100, clamping the pins 220 in the clamping grooves 122, and positioning the plug-in unit;

wherein, preferably, the insert 200 can be produced by the following preferred production method

a. Bending two ends of the strip-shaped metal sheet to form an arc-shaped part;

b. bending the middle part of the metal sheet in the step a, wherein the bending direction is the opposite direction of the two arc-shaped parts;

c. and c, stamping the metal sheet in the step b by using a stamping die, enabling the arc parts at the two ends of the metal sheet to be close to form an installation part 210, and combining the middle parts of the metal sheet into a pin 220. The pin is formed by bending and superposing two adjacent folding sections of the metal plate, the tail parts of the folding sections are respectively bent to form semicircular arc parts of the mounting part, and the two semicircular arc parts are spliced to form the mounting part.

3) The two ends of the pipe body 100 are punched, the cut of the pipe section at the end part of the pipe body 100 is inwards turned along the radial direction, the pipe wall at the end part of the pipe body 100 is inwards bent and pressed to form a clamp body 121, the clamp body clamps the installation part of the plug-in unit, the cut at the end part of the pipe body 100 is punched and deformed to form a U-shaped arc surface corresponding to the arc surface of the vertical rod 300, 4 corner protrusions 125 can be further formed on the cut, and the 4 corner protrusions 125 are tightly attached to the side surface of the vertical rod 300 at the same time, so that the end part of the cross rod and the side surface of the vertical rod 300 are free from wall sliding, and the.

Through the steps, the basic production and manufacture of the horizontal cross rod can be completed, and the horizontal cross rod and the circular or square pipe body are locked and fixed through the means of hot-press bending and the like after the plug-in piece is sleeved on the pipe body. For the manufacture of other structures, the manufacture of other structures will not be further described in detail based on the description of the aforementioned structures.

The present embodiment has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims (10)

1. The utility model provides a horizontal cross bar of scaffold frame, is in including body and setting the plug-in components at body both ends, a serial communication port, plug-in components include the installation department and follow the radial direction of installation department outwards extends to be used for connecting participating in of montant, be provided with on the tip pipeline section of body and press from both sides the groove, plug-in components the installation department nestification is in the tip inner chamber of body, participate in and arrange in the body press from both sides the inslot, its front end to the body is outside to be stretched out, body tip pipe wall inwards bends to press and forms the clamp to press from both sides and embraces the plug-in components the installation department, the body passes through the clamp with it will to press from both sides the groove plug-in components fastening connection, the arc that corresponds with circular montant extra.

2. A scaffolding horizontal rail according to claim 1, wherein: the inner wall of the clamp body is elastically abutted with the outer wall of the mounting part.

3. A scaffolding horizontal rail according to claim 2, wherein: the clamp body by body tip pipe wall with the installation department is closely bent and is pressed, the body with the installation department is closely pressed from both sides and is embraced, the body the clamp body with the bending deformation portion that forms on the installation department is connected fixedly.

4. A scaffolding horizontal rail according to claim 1, wherein: the plug-in components are made by bending metal plates, the plug pins are formed by bending and superposing two adjacent folding sections of metal plates, the tail parts of the folding sections are respectively bent to form semicircular arc parts of the installation parts, and the semicircular arc parts are spliced to form the installation parts.

5. A scaffolding horizontal rail according to claim 1, wherein: the pin is provided with a through hole opposite to the pin hole of the vertical rod.

6. A scaffolding horizontal rail according to claim 1, wherein: the front end edge of the clamping groove far away from the pipe body is bent and pressed to form two inward opposite convex parts for clamping the plug pins in the clamping groove.

7. A scaffolding rod according to claim 1, wherein: the clamp body is provided with an inner concave part, and the installation part is provided with a positioning part matched with the inner concave part.

8. A scaffolding horizontal rail according to claim 1, wherein: 4 angular projections are formed on the arc-shaped front end surface of the clamp body.

9. A scaffolding horizontal rail according to claim 1, wherein: the plug-in components the installation department rear side the body is fitted with a contraceptive ring and is equipped with the indent ring.

10. A method for producing a horizontal ledger of the scaffolding according to any one of claims 1 to 9 wherein: the method comprises the following steps of,

1) punching the two ends of the pipe body to enable the end part of the pipe body to be smooth, and punching the clamping grooves on the side wall of the pipe body;

2) placing a plug-in unit with an installation part and plug pins in an inner cavity at the end part of the tube body, wherein the plug pins are clamped in the clamping grooves, and positioning the plug-in unit;

3) the two ends of the pipe body are punched, the cut of the pipe section at the end part of the pipe body is inwards turned along the radial direction, the pipe wall at the end part of the pipe body is inwards bent and pressed to form a clamping body, the clamping body is right for the plug-in unit, the mounting part is clamped in a holding manner, so that the plug-in units on two sides are mounted and fixed on the pipe body, the front end of the clamping body is in an arc shape corresponding to the outer arc surface of the circular vertical rod, and the production and manufacturing of the horizontal cross.

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