CN210439666U

CN210439666U - Scaffold upright rod splicing strength-keeping structure

Info

Publication number: CN210439666U
Application number: CN201920917185.0U
Authority: CN
Inventors: 蒋飞; 孟路
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-05-01
Anticipated expiration: 2029-06-18

Abstract

The utility model discloses a scaffold frame pole setting continues to connect structure of excelling in relates to the construction field, including the cavity pole setting of mutual lock joint from top to bottom, cavity pole setting middle part is provided with the connection pad, cavity pole setting top is inlayed and is equipped with the connective bar, be provided with the first bellied ring that is used for adjusting between connective bar and the cavity pole setting on the cavity pole setting bottom inside wall, the lateral wall laminating of first bellied ring and connective bar, it is provided with the bellied ring of second to correspond first bellied ring position on the cavity pole setting bottom lateral wall, the width value of first bellied ring is higher than the bellied ring of second, slick and sly transitional coupling between first bellied ring, the bellied ring of second and the cavity pole setting possesses the effect that the connection is swift, the junction atress is even, the atress area is unchangeable, security performance is.

Description

Scaffold upright rod splicing strength-keeping structure

Technical Field

The utility model relates to a construction field especially relates to an it keeps strong structure to continue to connect for scaffold frame pole setting.

Background

Scaffolding (scaffold) refers to the various supports erected on a construction site for workers to handle and address vertical and horizontal transport. The general term of the building industry refers to the places which cannot be directly constructed on the building site and are used for exterior wall, interior decoration or high floor height. Mainly for constructors to live up and down or for peripheral safety net enclosures, high-altitude installation components and the like, scaffold manufacturing materials usually comprise: bamboo, wood, steel pipes or synthetic materials, etc. Some projects also use scaffolds as templates, and in addition, the scaffold is widely used in advertising, municipal administration, traffic roads and bridges, mines and other departments. Present scaffold frame pole setting is common to be dish knot cartridge formula connected mode, in the pole setting connection process, because for convenient grafting, need have certain clearance between pole setting outer tube and in-connection connective bar, this has just resulted in pole setting hookup location in-connection connective bar and pole setting inner wall binding point, the atress is uneven, can the holistic structural strength of greatly reduced scaffold frame and bearing capacity after stress accumulation, for the structural strength who guarantees operation personnel's safety improvement whole scaffold frame, this problem is promptly solved to urgent needs.

Disclosure of Invention

An object of the utility model is to overcome not enough among the prior art, provide a scaffold frame pole setting continues to connect structure of guaranteeing to strengthen, possess connect swift, the junction atress is even, the atress area does not diminish, the effect that the security performance is high.

The utility model discloses a realize through following technical scheme: the utility model provides a scaffold frame pole setting continues to connect structure of guaranteeing intensity, includes the cavity pole setting of mutual lock joint from top to bottom, and cavity pole setting middle part is provided with the connection pad, cavity pole setting top inlays and is equipped with the connective bar, be provided with the first bellied ring that is used for adjusting between connective bar and the cavity pole setting on the cavity pole setting bottom inside wall, the lateral wall laminating of first bellied ring and connective bar, it is provided with the bellied ring of second to correspond first bellied ring position on the cavity pole setting bottom lateral wall, the width value of first bellied ring is higher than the bellied ring of second, rounding off between first bellied ring, the bellied ring of second and the cavity pole setting is connected.

In order to further optimize the utility model discloses, can prefer following technical scheme for use:

preferably, the thickness range of the first bulge ring is 1-2 mm.

Preferably, the thickness range of the second bulge ring is 1-3 mm.

Preferably, the width value of the first convex ring is 3-5 mm higher than the height value of the second convex ring.

Preferably, the wall thickness range of the hollow vertical rod is 3.2-4 mm.

Preferably, the connective bar is the cavity body of rod, the length scope of connective bar is 180 ~ 240mm, the depth of insertion scope of connective bar is 100 ~ 120 mm.

Preferably, the connection pad adopts the metal disc and its thickness scope is 8 ~ 10mm, first connecting hole, the second connecting hole that is used for connecting the horizontal pole are offered to the epaxial equipartition of axle on the first connection pad.

Preferably, the edge position of the top of the connecting rod is provided with an arc transition surface, the hollow upright stanchion is symmetrically provided with a bolt hole corresponding to the position of the connecting rod, a pin shaft is arranged in the bolt hole, and the pin shaft sequentially penetrates through the hollow upright stanchion and the connecting rod.

The beneficial effects of the utility model reside in that: in the utility model, a first convex ring and a second convex ring are arranged on the inner wall and the outer wall of the hollow vertical rod; the contact area between the connecting rod and the hollow upright rod can be ensured to be not reduced through the first convex ring and the second convex ring by increasing the contact area between the connecting rod and the hollow upright rod on the basis of ensuring convenient insertion, so that the stress uniformity at the connecting position is realized; simultaneously the connective bar is the cavity body of rod, on the basis of guaranteeing overall structure intensity, reduces holistic weight, and the length range of connective bar is 180 ~ 240mm, and the depth of insertion scope of connective bar is 100 ~ 120mm, through the suitable depth of insertion of connective bar, can guarantee on scaffold puts up hookup location's the intensity basis, reduction in production cost improves practical life, the utility model discloses in first bulge loop corresponds with the position of second bulge loop, and the width value of first bulge loop is higher than the height value 3 ~ 5mm of second bulge loop, can improve the joint strength of first bulge loop position department through the second bulge loop.

Drawings

FIG. 1 is a schematic perspective view of a hollow vertical rod;

FIG. 2 is a sectional view of the internal structure of the hollow vertical rod;

FIG. 3 is a top view of the hollow upright;

fig. 4 is an enlarged view of the structure at a.

Wherein: 1-hollow upright rod, 2-connecting disc, 3-bolt hole, 4-pin shaft, 5-connecting rod, 6-first connecting hole, 7-second convex ring, 8-first convex ring and 9-arc transition surface.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-4, a scaffold upright rod splicing strength-maintaining structure comprises a hollow upright rod 1 which is buckled with each other up and down, wherein the wall thickness range of the hollow upright rod is 3.4mm, a connecting disc 2 is arranged in the middle of the hollow upright rod, the connecting disc adopts a metal disc, the thickness of the connecting disc is 10mm, first connecting holes 6 are uniformly distributed on the connecting disc, and the first connecting holes 6 are connected with cross rods to realize the integral construction of the scaffold upright rod; the connecting rod 5 is coaxially embedded in the top of the hollow vertical rod, the connecting rod 5 is a hollow rod body, the length range of the connecting rod is 200mm, the insertion depth range of the connecting rod is 100mm, the production cost is reduced, the practical service life is prolonged on the basis of ensuring the strength of the connecting position of the scaffold through the proper insertion depth of the connecting rod, and the arc transition surface is arranged at the edge position of the top of the connecting rod, so that convenience is brought to an operator in the construction process, and the overall installation efficiency is improved; bolt holes 3 are symmetrically formed in the hollow upright stanchions corresponding to the connecting rods, pin shafts 4 are installed in the bolt holes, and the pin shafts 4 sequentially penetrate through the hollow upright stanchions and the connecting rods 5; the inner side wall of the bottom of the hollow upright rod is provided with a first bulge loop used for adjusting a connecting gap between the connecting rod and the hollow upright rod, the first bulge loop is attached to the outer side wall of the connecting rod, the position of the outer side wall of the bottom of the hollow upright rod corresponding to the first bulge loop 8 is provided with a second bulge loop 7, the width value of the first bulge loop 8 is higher than that of the second bulge loop 7, the first bulge loop and the second bulge loop 7 are in smooth transition connection with the hollow upright rod, the thickness of the first bulge loop 8 is 1.04mm, the thickness range of the second bulge loop 7 is 2.28mm, the width value of the first bulge loop is higher than that of the second bulge loop by 3mm, the connecting strength of the first bulge loop can be improved through the second bulge loop, the contact area between the connecting rod and the hollow upright rod can be increased through the first bulge loop and the second bulge loop, the stress uniformity of the connecting position can be realized, and the contact area between the connecting rod and the hollow upright rod is, thereby realizing the stress uniformity at the connecting position.

In order to further explain the effect of the structure, the stress analysis when the scaffold upright rod is continuously connected is adjusted through the first convex ring and the second convex ring, and an experiment is made, wherein the specific experimental data is as follows: the effectiveness of the structure is verified by taking 60 series disc buckle vertical rods as experiments, and the vertical rods of the 60 series socket type disc buckle frame are made of steel pipes with the diameter of 60.2mm, the wall thickness of 3.2mm and the material quality of Q354B. The bearing capacity of the pole piece is influenced by the length-to-thickness ratio of the pole piece, and is also influenced by the size of the sectional area because the bearing sectional area is reduced, the bearing efficiency of the pole piece splicing pole piece is improved, and the influence of the eccentric torque force of the axle center is neglected: effective bearing area/theoretical bearing area 100% =459/573= 80.1%.

Experiment 1 is a performance comparison table after the vertical rod is continuously connected with the eccentric part of 1 mm:

experimental group Number (C)	Concentric bearing capacity （kN）	Conventional eccentric 1mm actual bearing Force (kN)	Practical bearing of embodiment Structure Force (kN)	Conventional eccentric 1mm load bearing Efficiency of	Example structural bearing Efficiency of
						1	204.93	156.36	191.15	76.3%	93.3%
2	198.41	157.32	193.47	79.3%	97.5%
						3	202.36	156.44	193.34	77.3%	95.5%
4	199.10	151.92	194.90	76.7%	98.4%
						5	199.28	157.71	191.62	79.1%	96.2%
6	197.17	156.81	195.87	79.5%	99.3%
						7	200.32	154.15	193.90	77.0%	96.8%
8	202.38	151.41	196.75	74.8%	97.2%
						9	201.99	155.17	194.98	76.8%	96.5%
10	203.51	151.83	196.48	74.6%	96.5%
						11	201.74	151.00	194.59	74.8%	96.5%
12	206.69	150.77	194.16	72.9%	93.9%
						13	203.67	153.50	191.59	75.4%	94.1%
14	197.11	155.76	192.56	79.0%	97.7%
						15	198.72	151.20	193.40	76.1%	97.3%
16	198.60	154.10	193.80	77.6%	97.6%
						17	201.77	150.37	195.84	74.5%	97.1%
18	199.08	152.73	193.55	76.7%	97.2%
						19	201.11	154.04	194.84	76.6%	96.9%
20	203.18	151.42	196.10	74.5%	96.5%
						Average	201.01	153.70	194.14	76.5%	96.6%

It can be clearly seen from experimental data that after using this structure, the bearing capacity that can very obvious promotion leads to owing to the pole setting is eccentric descends the problem. When the eccentricity reaches 1mm, the average lifting amplitude reaches 96.6% -75.5% =21.1%, and the effect is very obvious. At the same time, we see that even with this structure, the bearing capacity cannot be achieved when it is perfectly concentric, because the eccentricity causes the torque to be generated.

Experiment 2 is a performance comparison table after the vertical rod is continuously connected and eccentric by 1.5 mm:

experimental group Number (C)	Concentric bearing capacity （kN）	Conventional eccentric 1mm actual bearing Force (kN)	Practical bearing of embodiment Structure Force (kN)	Conventional eccentric 1mm load bearing Efficiency of	Example structural bearing Efficiency of
						1	203.04	133.93	189.35	66.0%	93.3%
2	198.25	132.66	194.61	66.9%	98.2%
						3	199.62	132.14	189.75	66.7%	95.1%
4	201.66	132.01	191.79	65.5%	95.1%
						5	199.45	134.89	191.85	67.6%	96.2%
6	200.95	131.90	193.11	65.6%	96.1%
						7	201.22	135.73	192.31	67.5%	95.6%
8	200.59	136.03	192.84	67.8%	96.1%
						9	201.68	135.40	192.92	67.1%	95.6%
10	199.56	130.99	191.19	65.6%	95.8%
						11	198.43	134.04	194.29	67.5%	97.9%
12	204.89	130.84	191.49	63.9%	93.5%
						13	204.47	134.32	191.82	65.7%	93.8%
14	201.59	136.36	190.21	67.6%	94.4%
						15	204.61	132.81	194.02	64.9%	94.8%
16	199.46	131.26	190.88	65.9%	95.7%
						17	203.27	134.36	190.59	66.1%	93.8%
18	202.42	133.73	190.16	66.1%	93.9%
						19	204.80	130.34	192.90	63.6%	94.2%
20	197.79	130.64	192.16	66.0%	97.2%
						Average	201.39	133.27	191.91	66.2%	95.3%

Can be clear from experimental data to see, use this structure after, when comparing eccentric 1mm, the efficiency that uses this structure promotes more obviously. When the eccentricity reaches 1.5mm, the average lifting amplitude reaches 95.3% -66.2% =29.1%, and the effect is very obvious. At the same time, the bearing capacity is reduced even if the structure is used, and the torque is increased by 1.5mm relative to 1 mm.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a continuous structure of guaranteeing intensity that connects of scaffold frame pole setting, includes the cavity pole setting of mutual lock joint from top to bottom, and cavity pole setting middle part is provided with connection pad, its characterized in that: the utility model discloses a cavity pole setting, including cavity pole setting top, cavity pole setting bottom inside wall is provided with the first bellied ring that is used for adjusting the connective gap between connective rod and the cavity pole setting, the lateral wall laminating of first bellied ring and connective rod, it is provided with the second bellied ring to correspond first bellied ring position on the cavity pole setting bottom outside wall, the width value of first bellied ring is higher than the second bellied ring, slick and sly transitional coupling between first bellied ring, second bellied ring and the cavity pole setting.

2. A scaffold upright splicing and strength-preserving structure as claimed in claim 1, wherein: the thickness range of the first protruding ring is 1-2 mm.

3. A scaffold upright splicing and strength-preserving structure as claimed in claim 1, wherein: the thickness range of the second bulge loop is 1-3 mm.

4. A scaffold upright splicing and strength-preserving structure as claimed in claim 1, wherein: the width value of the first protruding ring is 3-5 mm higher than that of the second protruding ring.

5. A scaffold upright splicing and strength-preserving structure as claimed in claim 1, wherein: the wall thickness range of the hollow upright rod is 3.2-4 mm.

6. A scaffold upright splicing and strength-preserving structure as claimed in claim 1, wherein: the connective bar is the cavity body of rod, the length scope of connective bar is 180 ~ 240mm, the depth of insertion scope of connective bar is 100 ~ 120 mm.

7. A scaffold upright splicing and strength-preserving structure as claimed in claim 1, wherein: the connecting pad adopts the metal disc and its thickness scope is 8 ~ 10mm, first connecting hole, the second connecting hole that is used for connecting the horizontal pole are offered to the epaxial equipartition of axle on the first connecting pad.

8. A scaffold upright splicing and strength-preserving structure as claimed in claim 1, wherein: the hollow upright rod is characterized in that an arc transition surface is arranged at the edge position of the top of the connecting rod, bolt holes are symmetrically formed in the hollow upright rod corresponding to the connecting rod, pin shafts are arranged in the bolt holes, and the pin shafts sequentially penetrate through the hollow upright rod and the connecting rod.