CN106703397B - Outer surrounding connection type scaffold fastener and connection structure thereof - Google Patents
Outer surrounding connection type scaffold fastener and connection structure thereof Download PDFInfo
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- CN106703397B CN106703397B CN201611254245.2A CN201611254245A CN106703397B CN 106703397 B CN106703397 B CN 106703397B CN 201611254245 A CN201611254245 A CN 201611254245A CN 106703397 B CN106703397 B CN 106703397B
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- 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
- E04G7/12—Clamps or clips for crossing members
- E04G7/14—Clamps or clips for crossing members for clamping the members independently
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- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
- E04G1/12—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means comprising members of special, e.g. composite, cross-section or with lugs or the like or lateral apertures for supporting or attaching other members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses an outer-surrounding connection type scaffold fastener and a connection structure thereof, comprising an exposed connection seat, wherein inner sleeve plates are respectively and vertically fixed at two ends of the exposed connection seat, inherent elastic sheets are respectively welded on the outer side surfaces of the two inner sleeve plates, one part of each elastic sheet is welded and the other part of each elastic sheet can swing, screw holes are respectively arranged on the two inner sleeve plates, an adjusting bolt is arranged on each adjusting bolt, and the end parts of the adjusting bolts correspond to the side surfaces of the swingable parts of the elastic sheets. The outer surrounding connection type scaffold fastener is utilized to realize quick and stable connection, and the construction speed is high and the effect is good. Wherein, high strength tongue and groove square tube or round square tube connection structure is equipped with a sunken notch of bending shaping on its side, is equipped with the inside slide that bends shaping that is greater than the notch with notch direction and width of notch, and this moment of inertia of promotion that such structural design can be by a wide margin to promote bending resistance, the torsional strength of this square tube.
Description
Technical Field
The invention mainly relates to the technical field of cold-bent steel structural profiles, in particular to an outer-surrounding connection type scaffold fastener and a connection structure thereof.
Background
Square steel and round steel pipes are hollow long steel materials, and are the most frequently used pipe fittings in the current engineering field. Square steel and round steel pipes have not only bending resistance and torsional strength but also a lighter weight, and are widely used for manufacturing mechanical parts and engineering structures. In the prior art, small-sized square steel and cylindrical pipes are generally divided into hot-rolled seamless round pipes, cold-drawn seamless round pipes, extruded seamless round pipes and welded round pipes, the cross-sectional shape of the round pipes is generally a conventional cylinder, and in recent years, round pipes with other cross-sectional shapes also appear, but the moment of inertia of the round pipes is not greatly improved, the use amount of steel in the fields for manufacturing mechanical parts and engineering structures cannot be greatly reduced, and the dead weight and the lifting strength of the mechanical parts and the engineering projects are not greatly improved.
In addition, the connection and fixation between the existing square steel and the round pipe are still solved through welding, and as the process characteristics of welding are that the connection speed is low, the stability of welding quality is poor, the factors influenced by welding operators are large, and common people are difficult to operate.
Disclosure of Invention
In order to solve the problems and the defects of low moment of inertia, high connection difficulty and the like of round steel pipes in the prior art, the invention provides an outer-wrapping connection type scaffold fastener and a connection structure thereof, which are used for improving and solving the problems
The technical scheme of the invention is as follows: the outer-surrounding connection type scaffold fastener comprises an exposed connecting seat, wherein two sides of the exposed connecting seat are respectively hinged with a longitudinal fastener and a transverse fastener, and a locking mechanism is arranged; the method is characterized in that: the end surfaces of the two sides of the exposed connecting seat are respectively provided with a longitudinal guide strip and a transverse guide strip, and the longitudinal guide strips and the transverse guide strips are mutually perpendicular.
The inner sides of the longitudinal fasteners or the transverse fasteners are respectively provided with an adjustable pressing mechanism.
The adjustable pressing mechanism is characterized in that an inherent elastic sheet is welded on the inner side of a longitudinal fastener or a transverse fastener, one part of the elastic sheet is welded and fixed, the other part of the elastic sheet can swing, screw holes are formed in the longitudinal fastener and the transverse fastener, an adjusting bolt is arranged on the screw holes, and the end part of the adjusting bolt corresponds to the side face of the swinging part of the elastic sheet.
The locking mechanism is characterized in that a through hole is formed in the side edge of the exposed connecting seat and sleeved with a screw rod, a fastener socket is formed in one end of the longitudinal fastener or the transverse fastener, and the fastener socket is fixedly connected with the screw rod in a matched mode.
The utility model provides an outsourcing connection formula scaffold frame fastener connection structure, includes square tube or circle square tube, characterized by: the square tube is a column tube structure with a rectangular cross section formed by bending and encircling steel plates, the butt joint is welded and fixed, at least one concave notch formed by bending is formed in the side face of the square tube, and a bending inner slideway which is the same as the notch in direction and has a width larger than the width of the notch is arranged in each notch;
the round rectangular tube is a column tube structure formed by bending and surrounding steel plates and welding, the column tube consists of n circular arc side surfaces, a bent concave notch is arranged between adjacent circular arc side surfaces, a bent inner slideway is arranged in each notch, the direction of the bent inner slideway is the same as that of the notch, and the width of the bent inner slideway is larger than that of the notch, wherein n is more than or equal to 1 and is an integer;
the square or round rectangular pipes are vertically fixed together through outer surrounding connection type scaffold fasteners, each outer surrounding connection type scaffold fastener comprises an exposed connecting seat, and two sides of each exposed connecting seat are respectively hinged with a longitudinal fastener and a transverse fastener and are provided with a locking mechanism; longitudinal guide strips and transverse guide strips are respectively arranged on the end surfaces of the two sides of the exposed connecting seat, and are mutually perpendicular;
the longitudinal fastener is fastened on the outer side of the longitudinal round rectangular tube or the square rectangular tube, the transverse fastener is fastened on the outer side of the transverse round rectangular tube or the square rectangular tube, the longitudinal guide strip is embedded in the notch of the longitudinal round rectangular tube or the square rectangular tube, and the transverse guide strip is embedded in the notch of the longitudinal round rectangular tube or the square rectangular tube.
The inner sides of the longitudinal fasteners or the transverse fasteners are respectively provided with an adjustable pressing mechanism; the adjustable pressing mechanism is characterized in that an inherent elastic sheet is welded on the inner side of a longitudinal fastener or a transverse fastener, one part of the elastic sheet is welded and fixed, the other part of the elastic sheet can swing, screw holes are formed in the longitudinal fastener and the transverse fastener, an adjusting bolt is arranged on the screw holes, and the end part of the adjusting bolt corresponds to the side face of the swinging part of the elastic sheet; the compressing mechanism of the transverse fastener is embedded in the inner slideway of the transverse round rectangular tube or square rectangular tube, and the compressing mechanism of the longitudinal fastener is embedded in the inner slideway of the longitudinal round rectangular tube or square rectangular tube.
The bottom surface of inside slide is cold-formed buckled plate shape, perhaps, the compound one deck cold-formed buckled plate that fixes of bottom surface of inside slide.
The cross section of the corrugation is square corrugation, or saw tooth corrugation, or curve corrugation.
The notch comprises two notch side surfaces connected with the outer side surfaces of the square tube or the round tube, and the inner slide way comprises a bottom surface, two side surfaces, a bottom surface and two upper surfaces which enclose a semi-closed rectangular structure; the bottom surface of inside slide is the plane, or, the bottom surface of inside slide is the cold-formed buckled plate shape, or, the compound one deck cold-formed buckled plate that fixes of bottom surface of inside slide.
An anti-reversion mechanism is arranged on the adjusting bolt; the anti-reversion mechanism is characterized in that a cam is hinged at the tail end of the adjusting bolt and is connected with a cam handle; the anti-reversion mechanism is characterized in that a vertical connecting rod is vertically fixed at the tail end of the adjusting bolt, and a locking swing rod is hinged at the tail end of the vertical connecting rod.
The invention has the technical effects that:
1. the invention adopts the improved square rectangular tube or round rectangular tube as the connecting main body, and utilizes the outer surrounding connecting scaffold fastener to realize quick and stable connection, and has high construction speed and good effect. Wherein, high strength tongue and groove square tube or round square tube connection structure is equipped with a sunken notch of bending shaping on its side, is equipped with the inside slide that bends shaping that is greater than the notch with notch direction and width of notch, and this moment of inertia of promotion that such structural design can be by a wide margin to promote bending resistance, the torsional strength of this square tube.
2. The outer surrounding connection type scaffold fastener connecting structure can adopt a connecting piece to be connected through bolts, so that the stability of connection quality is improved, the connecting structure is various in form and strong in flexibility, and the operation difficulty of the connecting process is greatly reduced.
3. The bottom at the inside slide of this round quarter bend is the buckled plate shape, and the intensity of this round quarter bend of promotion that can be further, frictional force when connecting between this buckled plate can also promote the round quarter bend simultaneously.
4. The invention can be applied to scaffolds, building house steel skeleton, auxiliary skeleton, scaffolds, etc. and mechanical industry to replace existing square tubes or round tubes.
5. The outer-surrounding connection type scaffold fastener is not only suitable for two square or round rectangular tubes which are mutually perpendicular or a combination thereof, but also suitable for connecting all tubes which are mutually crossed (not at right angles).
6. The elastic sheet is adjusted by the adjusting bolt, the T-shaped shearing connecting plate is not influenced in a loose state and freely slides to any proper position in the square tube or the round tube, the elastic sheet can be gradually pressed after the adjusting bolt is rotated, and finally the elastic sheet is propped in the antinode groove on the bottom surface of the caulking groove, so that the purpose of fixed connection is achieved.
Drawings
FIG. 1 is a schematic view of the use of the present invention;
FIG. 2 is a schematic view of a partial enlarged structure of the connection portion in FIG. 1;
FIG. 3 is one of the schematic structural views of the externally-encircling connective scaffold fastener of FIG. 2;
FIG. 4 is a second schematic view of the structure of the externally-encircling connective scaffold fastener of FIG. 2;
FIG. 5 is a schematic view of the connecting structure of the connecting fastener shown in FIG. 4;
FIG. 6 is a second schematic view of the connecting structure of the connecting fastener shown in FIG. 4;
FIG. 7 is a schematic cross-sectional view of a round rectangular tube;
FIG. 8 is a schematic diagram of a cross-sectional configuration of a dovetail barrel;
FIG. 9 is a schematic perspective view of FIG. 7;
FIG. 10 is one of the schematic views of a square tube structure;
FIG. 11 is a second schematic view of a square tube structure;
FIG. 12 is a schematic perspective view of FIG. 11;
FIG. 13 is a third schematic view of the connection structure of the connection fastener of FIG. 4;
FIG. 14 is a fourth schematic view of the connection structure of the connection fastener of FIG. 4;
fig. 15 is a schematic view of the partial cross-sectional structure of fig. 14.
In the figure, reference numeral 1a is a square tube, 1b is a circular rectangular tube, 1b' is a dovetail groove circular tube, 2 is a notch, 3 is an internal slide, 2-1 is a side face of the notch, 3-1 is an upper face of the internal slide, 3-2 is a side face of the internal slide, 3-3 is a bottom face of the internal slide, 3-4 is an antinode bottom face of the internal slide, 4 is a weld joint, 5 is an exposed connecting seat, 6 is a longitudinal fastener, 7 is a transverse fastener, 8 is a longitudinal fastener shaft seat, 9 is a longitudinal fastener connector, 10 is a transverse fastener shaft seat, 11 is a transverse fastener connector, 12 is a fastener socket, 13 is an adjusting bolt, 14 is an elastic sheet, 15 is a longitudinal guide bar, 16 is a transverse guide bar, 17 is a screw, 18 rivets, 19 is a positioning hole, 20 is a flat cap connecting bolt, 101 is a gap connecting plate, 102 is an inner sleeve plate, 102a is an inner plate, 102b is an outer plate, 105 is an adjusting bolt, 201 is a flat cap, 202 is a screw, 203 is a nut, 204 is a stopper, 205 is an inner flat hole.
Description of the embodiments
Example 1: see an externally connected scaffolding clip as shown in figures 2 and 3. The two sides of the exposed connecting seat are respectively hinged with a longitudinal fastener and a transverse fastener, and are provided with a locking mechanism; the end surfaces of the two sides of the exposed connecting seat are respectively provided with a longitudinal guide strip and a transverse guide strip, and the longitudinal guide strips and the transverse guide strips are mutually perpendicular.
The locking mechanism is provided with a through hole at the side of the exposed connecting seat and sleeved with a screw rod, and a fastener socket is arranged at one end of the longitudinal fastener or the transverse fastener and is fixedly connected with the screw rod in a matching way.
The outer surrounding connection type scaffold fastener can be matched with the square tube or the round tube provided by the invention for installation and fixation.
Example 2: see another type of externally attached scaffolding fastener shown in fig. 4 and 5. On the basis of the embodiment 1, the inner sides of the longitudinal fasteners or the transverse fasteners are respectively provided with an adjustable pressing mechanism. The adjustable compressing mechanism shown in fig. 4 and 5 is characterized in that an inherent elastic sheet is welded on the inner side of a longitudinal fastener or a transverse fastener, one part of the elastic sheet is welded and the other part of the elastic sheet can swing, screw holes are formed in the longitudinal fastener and the transverse fastener, and an adjusting bolt is arranged on the screw holes, and the end part of the adjusting bolt corresponds to the side face of the swinging part of the elastic sheet.
Example 3: the utility model provides a connection structure of outer surrounding connection formula scaffold fastener, see fig. 1, has square tube and outer surrounding connection formula scaffold fastener composite installation's scaffold. Wherein:
high strength tongue and groove square tube: referring to fig. 7, the steel plate bending and encircling rectangular side faces of four square tubes 1a are included, a concave notch formed by bending is formed in each side face of each square tube 1a, and a bending inner slideway which is identical to the notch in direction and is wider than the notch is formed in each notch.
The notch comprises two side surfaces connected with the side surfaces of the square tube 1a, and the internal slide way comprises two side surfaces, a bottom surface and two upper surfaces connected with the two side surfaces of the notch respectively.
The two sides of the notch are vertically connected with the side face of the square tube 1a, the two upper faces of the internal slide way are respectively and vertically connected with the two sides of the notch, and the internal slide way is square.
The four sides of the square tube are at least two of the transition joints between the adjacent sides are connecting welding seams.
To verify the great improvement of the moment of inertia of the square tube 1a of the present invention, the inventors performed the following calculation and analysis on the square tube 1a of the present invention:
from the comparison of the data, the moment of inertia of the square tube is increased by 50% -100% compared with that of a square tube with the same size.
High strength concave-convex groove antinode square tube: referring to fig. 7 and 8, four square tube 1a side surfaces which are rectangular are bent and encircled by a steel plate, at least one concave notch which is formed by bending is arranged on each square tube 1a side surface, a bending internal slideway which is identical to the notch in direction and is wider than the notch is arranged in each notch, the notch comprises two side surfaces which are connected with the square tube 1a side surfaces, the internal slideway comprises two side surfaces which are connected together, a bottom surface and two upper surfaces which are respectively connected with the two side surfaces of the notch, and the bottom surface of the internal slideway is in the shape of a cold-bending corrugated plate.
The wave direction of the wave is the same as the length direction of the square tube 1a
The two sides of the notch are vertically connected with the side face of the square tube 1a, the two upper faces of the internal slide way are respectively and vertically connected with the two sides of the notch, and the internal slide way is square.
The cross section of the corrugation is square.
The four sides of the square tube are at least one connecting weld joint with a steel plate.
High strength tongue and groove round rectangular tube: referring to fig. 11 and 12, a whole steel plate is bent and enclosed to form a round rectangular tube 1b, and the round rectangular tube is formed by combining four circular arc side surfaces. And, be equipped with the sunken notch 2 of bending shaping between every two adjacent circular arc sides, totally four sunken notch 2.
As can be seen in fig. 5, inside each slot 2, a bent internal runner 3 is provided, which is oriented in the same direction as the slot 2 and has a width greater than the slot 2.
The notch 2 comprises four notch side surfaces 2-1 connected with the side surfaces of the square tube 1a, and the inner slide way 3 comprises two inner slide way side surfaces 3-2 connected together, a bottom surface 3-3 of one inner slide way and two upper surfaces 3-1 of the inner slide ways respectively connected with the two side surfaces of the notch 2.
The bottom surface 3-3 of the inner slide way is in a cold-bending corrugated shape, or a layer of cold-bending corrugated plate 3-4 is compositely fixed on the bottom surface 3-3 of the inner slide way. The cross section of the corrugation is square corrugation, or saw tooth corrugation, or curve corrugation.
The two sides of the notch 2 are vertically connected with the sides of the round rectangular tube 1b, the two upper surfaces of the internal slideway 3 are respectively vertically connected with the two sides of the notch 2, and the internal slideway 3 is square.
It can be seen that the four circular arc sides of the round rectangular tube 1b are formed by bending or folding, and the two side edges of the extreme end are welded together after butt joint to form a connecting weld joint 4.
The production process of the high-strength concave-convex groove round rectangular tube 1b comprises the following steps:
the whole steel plate is bent and enclosed to form a round rectangular tube 1b, and the round rectangular tube is formed by combining four circular arc side surfaces. And, be equipped with the sunken notch 2 of bending shaping between every two adjacent circular arc sides, totally four sunken notch 2.
It can be seen that inside each slot 2, a bent internal runner 3 is provided, which is oriented in the same direction as the slot 2 and has a width greater than the slot 2.
The notch 2 comprises two notch side surfaces 2-1 connected with the side surfaces of the round rectangular tube 1b, and the inner slide way 3 comprises two inner slide way side surfaces 3-2 connected together, a bottom surface 3-3 of one inner slide way and two upper surfaces 3-1 of the inner slide ways respectively connected with the two side surfaces of the notch 2.
The two sides of the notch 2 are vertically connected with the sides of the round rectangular tube 1b, the two upper surfaces of the internal slideway 3 are respectively vertically connected with the two sides of the notch 2, and the internal slideway 3 is square.
It can be seen that the four circular arc sides of the round rectangular tube 1b are formed by bending or folding, and the two side edges of the extreme end are welded together after butt joint to form a connecting weld joint 4.
The production process comprises the following steps of;
a. bending the flattened steel plate to form square vertical bulges, wherein the heights of the other steel plates are vertical to the two side surfaces of the vertical bulges, and the heights of the square vertical bulges are equal to the sum of the width of one side surface of the inner slide, the width of one upper surface of the inner slide and the width of one side surface of the notch;
b. repeating the step a four times to form four vertical bulges; or four vertical bulges are formed in the step a at the same time;
c. a groove which is concave inwards is bent at the bottoms of the two side surfaces of the square bulge in the step a, the height of the groove is the same as the height of the notch of the round rectangular tube 1b, a transverse bulge which faces to two sides is formed at the upper part of the groove, and the step depth between the transverse bulge and the groove is the same as the upper surface of the inner slideway of the round rectangular tube 1 b; after the step c is completed, the vertical protrusions are changed into T-shaped protrusions,
d. repeating step c once on both sides of each vertical protrusion in step b, or simultaneously performing step c on four vertical protrusions;
e. and d, forming four T-shaped bulges after the step d is completed, performing arc bending on the steel plates at intervals between the adjacent T-shaped bulges, surrounding the steel plates into a round rectangular tube 1b, and connecting the butt joint positions of the steel plates by welding.
To verify the great improvement of the moment of inertia of the round tube 1b of the present invention, the inventors performed the following calculation and analysis on the round tube 1b of the present invention:
from comparison, the moment of inertia of the round rectangular tube 1b and the square rectangular tube (basically equal in circumference, h1, h2, b1, b2 are equal) is increased by 10% -20%; the larger the round moment tube h1 is, the smaller the integral moment of inertia is, and the smaller the value of h1 should be as much as possible; the influence of h2 on the change of the moment of inertia is larger, and the larger the h2 is, the larger the moment of inertia is; the contribution of other parameters to the moment of inertia is not significant.
According to finite element analysis, the yield resistance of the round rectangular tube can be improved by about 10% -25% compared with the bending resistance simulated by the rectangular tube with the same size, the shearing resistance and the compression resistance are basically consistent, and the round rectangular tube is suitable for being used as a bending resistant member.
High strength concave-convex groove antinode round rectangular tube: the whole steel plate is bent and enclosed to form a round rectangular tube 1b, and the round rectangular tube is formed by combining four circular arc side surfaces. And, be equipped with the sunken notch 2 of bending shaping between every two adjacent circular arc sides, totally four sunken notch 2.
It can be seen that inside each slot 2, a bent internal runner 3 is provided, which is oriented in the same direction as the slot 2 and has a width greater than the slot 2.
The notch 2 comprises two notch side surfaces 2-1 connected with the side surfaces of the round rectangular tube 1b, and the inner slide way 3 comprises two inner slide way side surfaces 3-2 connected together, an antinode bottom surface 3-3 of one inner slide way and two inner slide way upper surfaces 3-1 respectively connected with two side surfaces of the notch 2.
The two sides of the notch 2 are vertically connected with the sides of the round rectangular tube 1b, the two upper surfaces of the internal slideway 3 are respectively vertically connected with the two sides of the notch 2, and the internal slideway 3 is square.
It can be seen that the four circular arc sides of the round rectangular tube 1b are formed by bending or folding, and the two side edges of the extreme end are welded together after butt joint to form a connecting weld joint 4.
It can be seen that the antinode bottom surface 3-3 of the internal runner is in the shape of a cold-formed rectangular corrugated plate. And the wave direction of the rectangular wave is the same as the length direction of the round rectangular tube 1 b.
The notch 2 comprises two notch side surfaces 2-1 connected with the side surfaces of the round rectangular tube 1b, and the inner slide way 3 comprises two inner slide way side surfaces 3-2 connected together, a bottom surface 3-3 of one inner slide way and two upper surfaces 3-1 of the inner slide ways respectively connected with the two side surfaces of the notch 2.
The bottom surface 3-3 of the inner slide way is in a cold-bending corrugated shape, or a layer of cold-bending corrugated plate 3-4 is compositely fixed on the bottom surface 3-3 of the inner slide way. The cross section of the corrugation is square corrugation, or saw tooth corrugation, or curve corrugation.
At least one of four bent angles of the square hollow I-steel is provided with a connecting welding seam.
The longitudinal fastener is fastened on the outer side of the longitudinal round rectangular tube or the square rectangular tube, the transverse fastener is fastened on the outer side of the transverse round rectangular tube or the square rectangular tube, the longitudinal guide strip is embedded in the notch of the longitudinal round rectangular tube or the square rectangular tube, and the transverse guide strip is embedded in the notch of the longitudinal round rectangular tube or the square rectangular tube.
Example 4: referring to fig. 7, on the basis of example 3, the scaffold uses a dovetail groove round tube 2b'.
Example 5: referring to fig. 6, on the basis of embodiment 3, positioning holes 19 are uniformly distributed in the bottom of the inner slide of the round rectangular tube along the axial direction. The adjusting bolts 13 can be matched and clamped in the corresponding positioning holes 19.
Example 5: another connection structure of an outer periphery connection type scaffold fastener, see fig. 13, on the basis of embodiment 1, a through hole is formed in the side surface of the longitudinal fastener 6, a flat cap connection bolt 20 is installed in the through hole, the flat cap connection bolt 20 comprises a screw 202, a flat cap 201 and a nut 203, the flat cap 201 is located on the inner side of the longitudinal fastener 6, meanwhile, an inner flat hole 205 is formed in the bottom surface of the inner slide 3, the inner flat hole 205 is matched with the flat cap 201 in a contour manner, the aperture of the inner flat hole is larger than that of the flat cap 201, and one side or two sides of the inner flat hole 205 are provided with a stop 204. The through holes on the longitudinal fasteners 6 are round holes or flat holes.
Example 6: still another connection structure of outer surrounding connection type scaffold fastener, see fig. 14 and 15, do not set up shell fragment 14 on vertical fastener 6, but be provided with the through-hole directly in vertical fastener 6 side, install flat cap connecting bolt 20 in the through-hole, flat cap connecting bolt 20 includes screw rod 202 and flat cap 201 and nut 203, flat cap 201 is located the inboard of vertical fastener 6, is provided with interior flat hole 205 on the bottom surface of interior slide 3 simultaneously, interior flat hole 205 matches with flat cap 201 profile and the aperture of interior flat hole is greater than flat cap 201, and one side or both sides of interior flat hole 205 are provided with dog 204. The through holes on the longitudinal fasteners 6 are round holes or flat holes.
After all the connection points are positioned, the strength basically meets the use requirement. In order to achieve the aim of recycling, the water tank can be recycled through a disassembly and assembly mode. In addition, under the condition of no consideration of recycling, the connection can be enhanced by supplementing and fixing through a spot welding mode. The change of the shape of the notch and the change of the sliding shape under the guidance of the concept of the present invention are all within the scope of the present invention as long as the purpose is consistent with the purpose of the present invention, and are not described in detail herein.
Claims (3)
1. The utility model provides an outsourcing connection formula scaffold frame fastener connection structure, includes square tube or circle square tube, characterized by: the square tube is a column tube structure with a rectangular cross section formed by bending and encircling steel plates, the butt joint is welded and fixed, at least one concave notch formed by bending is formed in the side face of the square tube, and a bending inner slideway which is the same as the notch in direction and has a width larger than the width of the notch is arranged in each notch;
the round rectangular tube is a column tube structure formed by bending and surrounding steel plates and welding, the column tube consists of n circular arc side surfaces, a bent concave notch is arranged between adjacent circular arc side surfaces, a bent inner slideway is arranged in each notch, the direction of the bent inner slideway is the same as that of the notch, and the width of the bent inner slideway is larger than that of the notch, wherein n is more than or equal to 1 and is an integer;
the square or round rectangular pipes are vertically fixed together through outer surrounding connection type scaffold fasteners, each outer surrounding connection type scaffold fastener comprises an exposed connecting seat, and two sides of each exposed connecting seat are respectively hinged with a longitudinal fastener and a transverse fastener and are provided with a locking mechanism; longitudinal guide strips and transverse guide strips are respectively arranged on the end surfaces of the two sides of the exposed connecting seat, and are mutually perpendicular;
the longitudinal fasteners are fastened on the outer sides of the longitudinal round rectangular pipes or the square rectangular pipes, the transverse fasteners are fastened on the outer sides of the transverse round rectangular pipes or the square rectangular pipes, the longitudinal guide strips are embedded in the notches of the longitudinal round rectangular pipes or the square rectangular pipes, and the transverse guide strips are embedded in the notches of the longitudinal round rectangular pipes or the square rectangular pipes; the inner sides of the longitudinal fasteners or the transverse fasteners are respectively provided with an adjustable pressing mechanism; the adjustable pressing mechanism is characterized in that an inherent elastic sheet is welded on the inner side of a longitudinal fastener or a transverse fastener, one part of the elastic sheet is welded and fixed, the other part of the elastic sheet can swing, screw holes are formed in the longitudinal fastener and the transverse fastener, an adjusting bolt is arranged on the screw holes, and the end part of the adjusting bolt corresponds to the side face of the swinging part of the elastic sheet; the pressing mechanism of the transverse fastener is embedded in the inner slideway of the transverse round rectangular tube or the square rectangular tube, and the pressing mechanism of the longitudinal fastener is embedded in the inner slideway of the longitudinal round rectangular tube or the square rectangular tube; the side surface of the longitudinal fastener is provided with a through hole, a flat cap connecting bolt is arranged in the through hole, the flat cap connecting bolt comprises a screw rod, a flat cap and a nut, the flat cap is positioned at the inner side of the longitudinal fastener, meanwhile, an inner flat hole is formed in the bottom surface of the inner slideway, the inner flat hole is matched with the profile of the flat cap, the aperture of the inner flat hole is larger than that of the flat cap, and one side or two sides of the inner flat hole are provided with stop blocks; the through holes on the longitudinal fasteners are round holes or flat holes;
an anti-reversion mechanism is arranged on the adjusting bolt; the anti-reversion mechanism is characterized in that a cam is hinged at the tail end of the adjusting bolt and is connected with a cam handle; the anti-reversion mechanism is characterized in that a vertical connecting rod is vertically fixed at the tail end of the adjusting bolt, and a locking swing rod is hinged at the tail end of the vertical connecting rod.
2. The outer periphery-connected scaffold fastener connection structure as claimed in claim 1, wherein: the bottom surface of inside slide is cold-formed buckled plate shape, perhaps, the compound one deck cold-formed buckled plate that fixes of bottom surface of inside slide.
3. The outer periphery-connected scaffold fastener connection structure as claimed in claim 1, wherein: the notch comprises two notch side surfaces connected with the outer side surfaces of the square tube or the round tube, and the inner slide way comprises a bottom surface, two side surfaces, a bottom surface and two upper surfaces which enclose a semi-closed rectangular structure; the bottom surface of inside slide is the plane, or, the bottom surface of inside slide is the cold-formed buckled plate shape, or, the compound one deck cold-formed buckled plate that fixes of bottom surface of inside slide.
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| CN201611254245.2A CN106703397B (en) | 2016-12-30 | 2016-12-30 | Outer surrounding connection type scaffold fastener and connection structure thereof |
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| CN201611254245.2A CN106703397B (en) | 2016-12-30 | 2016-12-30 | Outer surrounding connection type scaffold fastener and connection structure thereof |
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| CN107083803A (en) * | 2017-06-14 | 2017-08-22 | 安徽农业大学 | A kind of cylindrical associating skeleton of building body |
| CN108906516B (en) * | 2018-10-08 | 2019-11-19 | 芜湖泓鹄材料技术有限公司 | Fixture used in automobile die bubbles model showering process |
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| CN201176707Y (en) * | 2008-04-18 | 2009-01-07 | 河南国基建设集团有限公司 | Rectangular fastener with lengthened rectangular seat |
| CN201321719Y (en) * | 2008-12-25 | 2009-10-07 | 大连金广建设集团有限公司 | Scaffold fastener for buildings |
| CN204781913U (en) * | 2015-07-07 | 2015-11-18 | 张永春 | Steel pipe scaffold fork is detained |
| CN105387041A (en) * | 2015-12-15 | 2016-03-09 | 河南奥斯派克科技有限公司 | Connection structure for high-strength concave-convex groove square tubes or round tubes |
| CN205480156U (en) * | 2015-12-15 | 2016-08-17 | 河南奥斯派克科技有限公司 | Connection structure is cuted to high strength tongue and groove |
| CN205677230U (en) * | 2016-06-17 | 2016-11-09 | 臧布江 | A kind of steel pipe on-slip for building is adjustable fastener |
| CN206428960U (en) * | 2016-12-30 | 2017-08-22 | 河南奥斯派克科技有限公司 | Outer encirclement interconnection system scaffold clasp and its attachment structure |
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