WO2011079616A1

WO2011079616A1 - Steel tube scaffold with combined bowl and plate buckles

Info

Publication number: WO2011079616A1
Application number: PCT/CN2010/075721
Authority: WO
Inventors: 刘国恩; 刘永有; 张北京
Original assignee: 北京奥宇模板有限公司
Priority date: 2009-12-28
Filing date: 2010-08-05
Publication date: 2011-07-07
Also published as: CN201581629U

Abstract

A steel tube scaffold with combined bowl and plate buckles consists of multiple standards (1), ledgers (2) and connecting nodes. The connecting node includes an upper bowl buckle (4), a lower plate buckle (5) and a restriction block (6). Both the upper bowl buckle (4) and the lower plate buckle (5) are sleeved over the standard (1). The lower plate buckle (5) is fixed to the standard (1) at the connecting node and the upper bowl buckle (4) is movably mounted on the standard (1) and above the lower plate buckle (5). Ledger ends (7) with double teeth (8) are mounted on both ends of the ledgers (2), and the lower plate buckle (5) of flange plate structure is set with multiple holes (13) circumferentially and equally. During the mounting process, the upper bowl buckle (4) is moved down and sleeved over the outer surface of the upper tooth of the ledger end, the lower tooth of the ledger end is inserted in the rectangular hole (13) of the lower plate buckle (5), and the upper end of the upper bowl buckle (4) is locked under the restricting block (6) of the standard (1). The steel tube scaffold with combined bowl and plate buckles can be disassembled and assembled easily, and can be mounted with diagonal poles (3), and can lock the ledger (2) and the diagonal pole (3) during mounting the bowl buckle.

Description

Dish combination steel pipe scaffolding

The invention relates to a steel pipe scaffold used in building construction, in particular to a combination of a bowl buckle and a buckle, and a combination of a bowl buckle scaffold and a disc buckle scaffold. Steel pipe scaffolding belongs to the technical field of building construction equipment.

Background technique

Scaffolding is an indispensable temporary facility in construction. It is specially designed for the construction of high-rise buildings. It is used as an operating platform, construction work and transportation corridor, and can temporarily stack construction materials and implements. Therefore, scaffolding has a wide range of applications in masonry, concrete, and renovation projects. At present, the development trend of scaffolding is to use metal-made combined scaffolding with multiple functions, which can be applied to different situations.

The steel pipe scaffolds used in construction in China mainly include bowl buckle type, fastener type, button type, door type, and An Degu (ADG) type. The fastener type steel pipe scaffold is composed of a steel pipe rod, a fastener, a base and a scaffold. The bowl-type steel pipe scaffold consists of steel pipe poles, crossbars, bowl buckle joints, etc. The basic structure and erection requirements are similar to the fastener-type steel pipe scaffolds. The difference lies mainly in the bowl buckle joints. The buckle type steel pipe scaffold is a scaffold with a buckle, a crossbar joint and a bolt as a connecting member, and a steel pipe as a main component, and the safety factor and work efficiency are higher than that of the bowl-type steel pipe scaffold. From the analysis of usage, at present, the most popular bowl-type steel pipe scaffolds in China still account for 40% of the total use of steel pipe scaffolds. The use of fastener-type steel pipe scaffolds accounts for about 30% of the total use of steel pipe scaffolds. Steel pipe scaffolding is applied within a certain range due to its performance characteristics. However, existing steel pipe scaffolding has certain limitations in terms of performance and applicability. For example, the commonly used bowl-type steel pipe scaffold has a limited frame size and U shape. Connection pins are easy to lose, and the price is more expensive. However, the buckle type steel pipe scaffold has the defects that the fastener part is easily lost, the bearing capacity is limited, and the connection quality of the fastener node is significantly affected by the operation of the worker.

In the Chinese utility model patent with the patent number ZL 89218873. 1, a bowl-type socket type steel pipe scaffold is disclosed, which has an adjustable support, a pole, a cross bar, a diagonal bar, a scaffold plate, a tripod, a railing, etc. The accessory member is connected by a short pipe between the poles, and a fixed bowl joint composed of a lower bowl, a limit pin and an upper bowl is arranged on the pole, and each of the bowl joints can be connected with four cross bars or diagonal bars in any direction. In addition, there are movable bowl buckles, which can be bolt-type or wedge-shaped. They all have two half bowls, bolted together, and bolted bolts attached to the half bowl and The mating nut, the wedge type has a pin attached to the half bowl, and a sloped washer and wedge cooperate with it. The movable bowl button can be mounted on any part of the pole.

In addition, in the Chinese utility model patent of the patent number ZL 200420107547. 3, a disc-type scaffold is disclosed, including a vertical rod, a cross rod and a diagonal rod. The vertical rod, the cross rod and the diagonal rod are connected together by a plurality of connecting members, each of the connecting members comprises a buckle disc and at least three calipers, and the caliper and the buckle disc are detachably connected. The structure of the buckle-type scaffold is detachable, convenient to disassemble and transport, light in overall weight, simple in structure, strong in stability and safety.

Through surveys of a large number of users, a considerable proportion of construction companies hope to improve the existing bowl-type scaffolding. While maintaining the advantages of the bowl-type scaffolding itself, it also absorbs the characteristics of the disc-type scaffolding, which can be installed horizontally and vertically at the node. The slanting rod is used to improve the stability of the frame itself and achieve the purpose of improving the bearing capacity. Summary of the invention

In order to meet the new requirements for the development of scaffolding technology in building construction, the primary technical problem to be solved by the present invention is to provide a novel dish-combined steel pipe scaffold. The combination of the plate-type steel scaffolding and the bowl-type scaffolding combines the advantages of the scaffolding and the scaffolding.

In order to achieve the above object of the invention, the present invention adopts the following technical solutions: A dish combination steel pipe scaffold featuring:

The tray combined steel pipe scaffold is continuously combined by a plurality of poles, cross bars and connecting nodes, and the connecting nodes include an upper bowl buckle, a lower disc buckle and a limit position;

The upper bowl buckle and the lower disc buckle are all set on the vertical pole, wherein the lower disc buckle is fixed at the connection node and the vertical rod, and the upper bowl buckle is located above the lower disc buckle, and is installed with the vertical rod;

The ends of the cross bar are provided with a cross rod end, and the end of the cross rod is provided with double teeth; the lower disc buckle is a garland disc structure, and a plurality of holes are evenly arranged along the circumferential direction;

During installation, the upper bowl is buckled down on the outer side of the tooth at the end of the crossbar, the downward tooth of the crossbar is inserted into the rectangular hole of the lower buckle, and the upper end of the upper buckle is clamped to the pole Below the limit stop.

In one embodiment of the present invention, the tray-combined steel pipe scaffolding further has a plurality of diagonal rods, the ends of the inclined rods are provided with the ends of the inclined rods, and the ends of the inclined rods are provided with double teeth.

During installation, the upper bowl is buckled down on the outer side of the tooth at the end of the slanted rod, and the downwardly-shaped tooth at the end of the slant rod is inserted into the rectangular hole of the lower buckle.

In an embodiment of the invention, the diagonal rod is divided into a vertical inclined rod and a horizontal inclined rod, and both ends of the vertical inclined rod and the horizontal inclined rod are spliced and fitted with the inclined rod end.

In an embodiment of the invention, the broccoli disc structure of the lower disc is provided with eight rectangular holes of the same cross-sectional dimension in the circumferential direction.

In one embodiment of the invention, the center of the lower buckle is provided with a lower inner circle of the lower buckle, and the lower side of the inner circumference of the lower buckle is provided with a splicing groove.

In one embodiment of the invention, the outer circumference of the lower dial of the lower buckle is provided with a concave arc of the lower disc.

In one embodiment of the invention, the upper bowl buckle is a combined structure of the upper bowl sleeve and the upper bowl conical housing. In an embodiment of the invention, the symmetrical arrangement of the upper wall of the upper bowl sleeve allows the limit stop to pass Two convex arc notches and two counterclockwise ramps.

In an embodiment of the present invention, the inner side surface of the upper bowl conical housing is aligned with the outer side of the cross rod end tooth and the oblique rod end tooth so as to achieve the diameter of the cross rod and the diagonal rod at the same connection node. Lock to the suit.

In one embodiment of the invention, the outer end faces of the upper bowl conical housing are symmetrically disposed with two upper bowl hammer seats.

In one embodiment of the invention, the limit stops are cylindrical and the vertical set is clamped to the uprights.

In one embodiment of the present invention, the end of the cross-bar end of the cross-bar end is provided with double teeth at one end and the cross-bar end cannula section at the other end; In the segment, the cross-section of the end of the cross bar is a cone segment, and the vertical section is a I-shaped structure.

In an embodiment of the present invention, one end of the slanted rod end of the slanted rod end is provided with double teeth, and the other end is provided with a slanted rod end cannula section, and the middle end of the slant rod end cannula section Slant rod end pin hole.

In one embodiment of the invention, when used for a vertical slanting bar, the slanted rod end tooth block segment is a curved plate. In one embodiment of the invention, when used in a horizontal slanting bar, the slanted bar end tooth block segment is a straight plate. In one embodiment of the invention, the cross-section of the cross-bar end and the slanted rod end are rectangular in shape and slightly smaller than the aperture in the corresponding lower reel.

The combination plate steel pipe scaffold provided by the invention has the advantages of simple disassembly and assembly, and the upper bowl simultaneously locking the cross bar and the diagonal bar; and the frame type scaffolding can be equipped with the frame body. The advantage of installing a diagonal rod. The steel pipe scaffold can be arranged with horizontal and vertical slanting rods, and the plane can be set as a curved scaffold. The frame body can be arranged with horizontal and vertical slanting rods, which is easy to disassemble and install, safe and reliable.

DRAWINGS

In order to explain the present invention more clearly, the following drawings will be used in the description of the embodiments of the present invention. Briefly, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain more from these drawings without any creative work. The drawing.

1 is a schematic view showing a three-dimensional structure of a node assembly of a steel plate scaffold;

Figure 2 is a schematic structural view of a pole;

Figure 3 is a schematic structural view of a crossbar;

4 is a schematic diagram of the structure of the horizontal slanting rod;

5 is a schematic diagram of the structure of a vertical diagonal rod;

Figure 6 is a schematic front view of the lower disc buckle;

Figure 7 is a plan view of Figure 6;

Figure 8 is a front view of the upper bowl buckle;

Figure 9 is a plan view of Figure 8;

Figure 10 is a schematic front view of the end of the crossbar;

Figure 11 is a plan view of Figure 10;

Figure 12 is a front view showing the structure of the slanted rod end;

Figure 13 is a plan view of Figure 12.

DESCRIPTION OF REFERENCE NUMERALS: 1. Pole, 2. Crossbar, 3. Vertical slanting bar, 4. Upper bowl buckle, 5. Lower disc buckle, 6. Limit position, 7. Cross rod end, 8. Horizontal Double teeth at the end of the rod, 9. Intubation section at the end of the cross rod, 10. Straight rod end section, 11. Horizontal slanting rod, 12. Slant rod end, 13. Lower disc buckle rectangular hole, 14 The lower ring buckle inner ring, 15. the lower plate buckle outer circle, 16. the lower plate buckle outer concave arc, 17. the upper bowl sleeve, 18. the upper bowl sleeve slope, 19. the upper bowl sleeve outer convex arc gap, 20. Upper bowl conical shell, 21. upper bowl hammer seat, 22. double rod at the end of the slant rod, 23. slant rod end socket section, 24. slant rod end intubation section, 25. slant rod End pin hole. detailed description

The above described objects, features and advantages of the present invention will become more apparent from the aspects of the appended claims. It should be noted that the directional terms mentioned in the present invention, such as "upper", "lower", "before", "after", "left", "right", "inside", "outside", "side" Etc., just refer to the direction of the drawing. Therefore, the directional terminology used is for the purpose of illustration and understanding of the invention.

1 is a schematic view showing the assembled structure of a node-assembled steel pipe scaffold provided by the present invention. As shown in Fig. 1, its connecting node is composed of a vertical pole 1, a crossbar 2, a diagonal pole 3, an upper bowl buckle 4, a lower disc buckle 5 and a limit position gear 6. The upper bowl buckle 4 and the lower disc buckle 5 are both set on the upright 1 and the lower dial 5 is fixed to the upright 1 at the joint node. The upper bowl buckle 4 is located above the lower disc buckle 5 and is movably mounted with the pole 1 . The crossbar 2 is provided with a crossbar end at both ends 7, and both ends of the diagonal rod are provided with a slanted rod end 12, and the ends of the cross rod end 7 and the slant rod end 12 are respectively double teeth 8, 22 respectively. The lower disc buckle 5 uniformly sets a plurality of corresponding rectangular holes 13 along the circumference to form a garland disc structure. In one embodiment of the invention, the number of rectangular holes 13 in the genus disc structure is eight (can be adjusted to six or ten, etc. as needed). One tooth of the crossbar end 7 of the crossbar 2 and one tooth of the slanted end 12 of one end of the diagonal bar are respectively inserted into the rectangular hole 13 of the lower disc buckle, and the upper bowl buckle 4 is moved downwardly and horizontally. The rod end 7 and the outer side of the other upward tooth of the slanted rod end 22 screw the upper bowl buckle 4 clockwise so that the upper end of the upper bowl buckle 4 is clamped under the limit stop 6 on the upright.

As shown in Figure 2, in one embodiment of the invention, the pole 1 is a C 48 X 3.5 mm tube. The C 48 X 3. 5 mm manifold has 1200~3000mm and the size module is 600mm. Therefore, there are 4 length specifications (1200mm, 1800mm, 2400mm and 3000mm); set the connection node according to (275 + 600n + 325) , The lower jaw 5 and the limit stop 6 are arranged in the group, and the upper bowl buckle 4 is placed on the lower buckle 5. In this embodiment, the lengths of the two ends of the pole are 275 匪, 325 匪, respectively, according to the size module 600 匪 and the length of the pole 2400 匪, The number of outbound segments is three, and the number of connected nodes is four (ie, the number of segments is +1).

As shown in Fig. 1 and Fig. 2, the limit position 6 is a C8X8mm cylindrical column, and the vertical group is clamped on the upright 1 to facilitate the locking and positioning of the upper bowl buckle and the hammer release. In the specific construction practice, the new splicing technology C02 gas protection stud 悍 process can be used for grouping.

As shown in FIG. 3, in one embodiment of the present invention, the crossbar 2 is a C48X3.5mm manifold, and the mounting pitch of the pole 1 is 300 to 1800 mm, and the size modulus is 300 mm. There are 6 length specifications. The ends of the crossbars are fitted at both ends and assembled into a unitary body.

As shown in Figures 4 and 5, in one embodiment of the present invention, the slanting bar is divided into a vertical slanting bar 3 and a horizontal slanting bar 11, both of which are C40X3 mm manifolds. The length of the vertical slanting rod 3 is set according to the vertical spacing (600, 1200) mm of the upper and lower buckles 5 of the vertical pole 1 and the specifications of the vertical installation plane spacing (600, 900, 1200) mm, and the corresponding layout requirements are 6 The length of the vertical slanting rod and the 1200X 1200mm one length horizontal slanting rod are spliced at both ends to fit the corresponding special slanting rod end 120.

As shown in Figs. 6 and 7, in one embodiment of the present invention, the lower clasp 5 is constructed as a broccoli disc which is assembled on the upright 1 and has eight rectangular holes 13. The cross-sectional dimensions of each of the rectangular holes 13 are the same; the double teeth 8 of the cross bar end and the double teeth 22 of the diagonal end 12 are rectangular in shape, and the size is slightly smaller than the corresponding rectangular hole 13 of the lower disc, which is convenient Inserted into the rectangular hole 13 with only a small gap. When the upper bowl buckle is tightened, it can be securely caught in the lower buckle. The center of the lower button 5 is provided with a lower inner ring 14 of the lower disc, the inner circle 14 of the lower disc is C 49 mm, and the lower side is provided with a 3X 2.5 mm splicing groove, and the gusset height hr = 4 mm is sufficient. Meet the single-sided application strength requirements of the lower disc and the C 48X3.5 mm manifold. At the same time, the outer ring 15 of the lower disc is provided with a concave arc 16 of the lower disc to reduce the weight.

As shown in FIG. 8 and FIG. 9, in one embodiment of the present invention, the upper bowl buckle 4 is a combination structure of the upper bowl sleeve 17 and the upper bowl cone housing 20, and the upper structure is an upper bowl having an inner diameter of C 50 mm. Sleeve 17, upper bowl The outer wall of the sleeve 17 is symmetrically disposed to allow two outer convex notches 19 and two counterclockwise slopes 18 to pass through the limit stop 6, so that the upper bowl buckle sleeve and the end teeth can be easily arranged to realize the axial lock. The lower portion is configured as an upper bowl conical housing 20 and is integrally formed with the upper portion. The inner side surface of the upper cone housing 20 is identical to the outer side of the cross rod end tooth and the slant rod end tooth, so that the radial locking and the setting of the same node cross rod and the diagonal rod can be realized. When 2~4 crossbars are installed on the lower button of the pole, the upper bowl buckle can be rotated clockwise. The upper sleeve can be clamped under the limit stop 6, while the lower cone can cover the upper end of the crossbar and the slanted rod end, and all the ends are locked on the upright. Two upper bowl hammer seats 21 are symmetrically disposed on the outer end surface of the upper bowl conical housing 20.

As shown in Figs. 10 and 11, the cross-end end of the cross-bar end 7 has a double-toothed end 8 at the end of the cross-bar end of the cross-bar, and a cross-bar end cannula section 9 at the other end. The cross-bar end cannula segment 9 is a C 41 X 5mm rounded section, the cross-bar end tooth block segment 10 is a C 41-C 48 mm cone segment, and the rounded section can be easily inserted into the radial direction of the 48 X 3. 5m tube. Positioning, the cone section can be axially positioned, and the slope is self-retained to facilitate the assembly and application of the cross-bar end 7. The vertical section of the cross-end end tooth block 10 has a I-shaped structure with a height of 24 mm, and the horizontal plane of the upper and lower flanges of the I-shaped is an isosceles trapezoid (30-10) X 26匪; the outer width of the double teeth 8 at the end of the crossbar The size is 48 inches.

As shown in Figs. 12 and 13, the slanted rod end portion 23 of the slanted rod end 12 is provided with a double tooth 22 at one end of the slanted rod end and a slanted rod end cannula portion 24 at the other end. The slanted rod end cannula section 24 is provided with a slanting rod in the middle of the end pin hole 25; the slant rod end cannula section 24 is a rectangular plate of 51 X 40 X 6 mm. The slanted rod end tooth block section 23 is a (40~48) X 42 X 10mm profiled plate, including straight and curved. It is curved at the time of casting and is used for the vertical slanting rod 3; it is straightened with a flame and can be used for the horizontal slanting rod 11. The slanted rod end cannula section 24 has a width of 40 mm and is easily inserted into the C 40 X 3mm manifold. The double-tooth 22 at the end of the slanted rod has an outer width of 48 inches and a width of 24 inches at the root. The slanted rod end pin hole 25 is C 12 匪.

The basic supporting components of the combined plate steel scaffold of this dish are adjustable top support, adjustable base, early split head, pedals, ladders, etc., all of which are designed and equipped with the same general type as the bowl-type scaffolding. Auxiliary structure There are picking beams, span beams, etc., designed according to common specifications.

In order to meet the requirements of modern construction technology for the improvement of steel pipe scaffolding, the basic rods of the combined steel pipe scaffolding of this dish are equipped with rods, cross bars, horizontal inclined bars and vertical inclined bars. According to the general bearing requirements, both the pole and the crossbar are C 48 X 3. 5匪悍, and the inclined rods are all C 40 X 3rnm. The node member is provided with a lower buckle, an upper bowl buckle, a cross rod end, a slant rod end and an upper bowl limit stop. The slanted rod ends are used for horizontal and vertical slanting rods. The advantages of this are as follows: First, it has the advantages of easy disassembly and assembly of the bowl-type scaffolding, locking the crossbar and the diagonal rod at the same time; secondly, it has the advantages that the scaffolding rack can be equipped with a diagonal rod; It has the comprehensive advantages of supporting the use of fastener scaffolding technology and arranging different types of diagonal braces.

One end of the cross-bar end structure is matched with the lower and upper bowl buckles, which is convenient for inserting and locking the double-tooth structure; one end is convenient to insert the C 48 X 3. 5mm manifold structure, and the whole structure is concave and concave. Into the treatment, both strength requirements and component weight can be reduced. Moreover, the maximum width and diameter of the crossbar are 48mm, which is convenient for bundle and stacking.

The slanted rod end structure is designed as a 51 X 40 X 6mm rectangular plate and a (40-48) X 42 X 10 匪 profiled plate combined cast steel structure. The rectangular plate can be inserted into a C 40 X 3mm manifold for flattening. The double teeth of the profiled plate have the same shape as the double teeth of the end of the crossbar, which is easy to insert and lock.

In the design of the pole joint, the plug-in joint can be fixedly fixed up and down, which simplifies the structure and manufacturing process of the pole, and can reduce the insertion gap and improve the docking performance of the pole.

The disassembly and assembly operation steps of the combined plate steel scaffold of the dish are as follows:

Step 1: Arrange the first layer of 4 poles from one end or a corner;

Step 2: Install two inter-pillar rails and one side of the horizontal slant rod end from bottom to top, and insert them into the rectangular hole of the lower disc buckle downward;

Step 3: Cover the upper side of the horizontal rod and the horizontal slant rod end with the inner side of the cone of the bowl, not tightening temporarily. Buckle on the bowl;

Step 4: Install the remaining poles, crossbars and horizontal slanting rods in turn until the three types of rods in this layer are all pre-installed;

Step 5: Install the first layer of the vertical section of the pole section in turn, first loosen the upper bowl buckle to be installed, insert the head teeth on both ends of the vertical diagonal rod, and then set the bowl buckle, and use a small hammer or special torque Move the hand tightly to lock the bowl buckle;

Step 6: Install the supporting ladders, scaffolding boards, fasteners and other supporting facilities of the poles of this layer; Step 7: Install the second layer of poles and the above layers of poles in order according to the first to sixth steps, Cross bar, horizontal slant bar, vertical slant bar and supporting facilities;

Step 8: Install the scaffolding fastener scaffolding.

When dismantling, it should be removed from the eighth step to the first step in the order of installation.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A dish-mounted steel pipe scaffold characterized by:

The tray combined steel pipe scaffold is formed by continuously combining a plurality of poles, cross bars and connecting nodes, and the connecting node comprises an upper bowl buckle, a lower disc buckle and a limit position;

The upper bowl buckle and the lower disc buckle are respectively disposed on the vertical rod, wherein the lower disc buckle is fixed to the vertical rod at a connection node, and the upper bowl buckle is located at the lower buckle Upper side, movablely mounted with the pole; the two ends of the crossbar are provided with a crossbar end, the crossbar end is provided with double teeth; the lower disc buckle is a garland disc structure, in the circumferential direction Uniformly set a plurality of holes;

When installed, the upper bowl buckle is sleeved on the outer side of the tooth at the end of the cross rod, and the downward tooth of the end of the cross rod is inserted into the rectangular hole of the lower disc buckle. The upper end of the bowl buckle is clamped under the limit stop on the pole.

2. The disc-combined steel pipe scaffold according to claim 1, wherein:

The tray-combined steel pipe scaffold further has a plurality of diagonal rods, and the two ends of the inclined rod are provided with a diagonal rod end, and the end of the oblique rod is provided with double teeth.

During installation, the upper bowl buckle is sleeved on the outer side of the upwardly facing teeth of the diagonal rod, and the downwardly-shaped teeth of the diagonal rod end are inserted into the rectangular holes of the lower buckle.

3. The disc-combined steel pipe scaffold according to claim 2, wherein:

The slanting rod is divided into a vertical slanting rod and a horizontal slanting rod, and both ends of the vertical slanting rod and the horizontal slanting rod are spliced and fitted with the slanting rod end.

4. The disc-combined steel pipe scaffold according to claim 1, wherein:

The broccoli disc structure of the lower disc buckle is provided with eight rectangular holes of the same cross-sectional dimension in the circumferential direction.

5. The combination drum steel pipe scaffold according to claim 1, wherein: a center of the lower buckle is provided with a lower inner circle of the lower buckle, and a lower side of the inner circle of the lower buckle is provided with a sloping slope. mouth.

6. The bowl-disassembled steel pipe scaffold according to claim 1, wherein:

The outer circumference of the lower disc buckle of the lower disc buckle is provided with an outer concave arc of the lower disc buckle.

7. The disc-combined steel pipe scaffold according to claim 1, wherein:

The upper bowl buckle is a combined structure of an upper bowl sleeve and an upper bowl conical shell.

8. The disc-combined steel pipe scaffold according to claim 7, wherein:

The outer wall of the upper bowl sleeve is symmetrically disposed with two outer convex arc notches and two counterclockwise slopes through which the limit stop passes.

9. The disc-combined steel pipe scaffold according to claim 7, wherein:

The inner side surface of the upper bowl conical housing is identical to the double teeth of the cross rod end and the outer side slope of the double tooth end of the diagonal rod end, so as to achieve radial locking of the cross rod and the diagonal rod at the same connection node With a suit.

10. The disc-combined steel pipe scaffold according to claim 7, wherein:

The outer end surface of the upper bowl conical housing is symmetrically disposed with two upper bowl hammer seats.

11. The disc-combined steel pipe scaffold according to claim 1, wherein:

The limit gear is a cylinder, and the vertical group is clamped on the pole.

12. The disc-combined steel pipe scaffold according to claim 1, wherein:

One end of the cross rod end of the cross rod end is provided with double teeth, and the other end is provided with a cross rod end intubation section; the cross rod end intubation section is a rounded section, the horizontal The rod end tooth seat segment is a cone segment, and its vertical section is a I-shaped structure.

13. The disc-combined steel pipe scaffold according to claim 2, wherein:

The slanted rod end of the slanted rod end has a double tooth at one end and a slanted rod end cannula at the other end And a slanted rod end pin hole is disposed in the middle of the slanting rod end cannula segment.

14. The disc-combined steel pipe scaffold according to claim 13, wherein: when used for a vertical slanting bar, the slanted bar end toothed seat segment is a curved plate.

15. The disc-combined steel pipe scaffold according to claim 13, wherein: when used for a horizontal slanting bar, the slanted bar end toothed seat segment is a straight plate.

16. The disc-combined steel pipe scaffold according to claim 13, wherein: the cross-section of the cross-bar end and the double-toothed end of the slanted rod end are rectangular, and the size is slightly smaller than the corresponding lower buckle. The hole in it.