CN2294312Y - High strength steel scaffold board - Google Patents

Abstract

The utility model relates to a high strength steel scaffold board, which belongs to a construction tool. The scaffold board is formed by the way that a main board (1), an end ribbed board (2), a middle ribbed broad (3) and a connecting clamp (4) are welded into integration. The scaffold board and a scaffold transverse rod (6) are fixed by a clamping hook (5), a screw bolt (8) and a nut (7). Two adjacent scaffold boards are locked in a transverse direction by a locking board (9), a locking block (10) and a handle (12). The utility model has the advantages of reasonable section structure, high intensity, large rigidity and good non-skid properties. The attachments are elastically clamped, which is convenient and reliable. The scaffold board is suitable for constructions of architectural decoration, and can be used as a shelf of a goods rack in a material bin and a storage yard.

Description

The high strength steel scaffold floor

The utility model is a kind of high strength steel scaffold floor made from steel sheet (calling this scaffold floor in the following text), belongs to the building operations apparatus.

Scaffold floor is to use one of common architecture construction equipment, and is of a great variety, and wooden scaffold floor is arranged, bamboo scaffold floor, reinforcing bar scaffold floor, channel-section steel frame wood scaffold floor, thin Steel scaffold board etc.Wherein, wooden scaffold floor and bamboo scaffold floor intensity is low, rigidity is poor, the life-span is short, cost is high; With angle steel and channel-section steel be the scaffold floor made of frame from great, the load that the unit deadweight can bear is lower, thin Steel scaffold board deadweight is lighter, intensity is higher relatively.Use at present wider thin Steel scaffold board, in that " the building operations handbook first volume has introduction for 1166 pages, and this scaffold floor and scaffold cross bar are fixed with the slide fastener hook, connect with cone pin between adjacent scaffold floor.Another kind of thin Steel scaffold board is the hanging scaffold floor with the supporting two ends band hook of door-type scaffold.

The purpose of this utility model is to be to make the intensity of this scaffold floor to be greatly improved with the existing similar Steel scaffold board of ratio of rigidity, thereby can improves its supporting capacity in construction application, increases the service life, and makes application more convenient, safe, reliable.

This scaffold floor structure is seen Fig. 1-Fig. 4.1 is mainboard among the figure, and 2 is the end rib plate, and 3 is middle floor, and 4 is Connection Card, is welded into integral body through spelling and forms product again after antirust japanning is handled.Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the upward view of this scaffold floor.

Fig. 2 is the front view (the C-C sectional view of Fig. 1) of this scaffold floor.

Fig. 3 is the A-A cutaway view Amplified image of Fig. 2.

Fig. 4 is the B-B sectional view of Fig. 3.

Fig. 5 is that the accessory card hook assembly is with this scaffold floor and foot rest cross bar chucking figure.

Fig. 6 is the D-D sectional view of Fig. 5.

Fig. 7 is the sectional view that locks with annex between adjacent two these scaffold floors.

Fig. 8 is the E-E sectional view of Fig. 7.

B place, mainboard 1 bottom is owing to adopt ribs (end rib) structure (Fig. 3) of continuous bend, the mechanical property of material obtains good utilization, center of gravity (centre of form) position in cross section is all moved down to some extent than existing similar Steel scaffold board, thereby increased bending resistant section modulus W value, improved flexural strength and rigidity, made the supporting capacity of this scaffold floor unit deadweight and bulk strength, rigidity all be higher than existing thin Steel scaffold board at present.A plurality of anti-slide opening (the tubaeform cylindrical shell with holes) a that arranges according to certain rules on the mainboard 1, its cling property also are better than the convex closure shape or garden, the plane hole shape anti-skid structure of existing thin Steel scaffold board plate face.

End rib plate 2 is welded in mainboard 1 two ends, and (Fig. 1-Fig. 4), two breach c are arranged at its bottom, wherein are welded with two Connection Cards 4 on the end end rib plate.This Connection Card is shaped with the band steel continuous bend, when two these scaffold floors are end to end, the end rib plate 2 on deck is pushed in the Connection Card 4 that is welded on the second plate end rib plate 2, can realize that elasticity clamps between two scaffold floors, and is convenient and reliable.Because two breach c are respectively arranged at the bottom of two ends end rib plate 2, the unlikely mainboard baseplane that exceeds, the bottom surface of Connection Card 4 makes installation, stability in use good.

Middle floor 3 welds mutually with Nei Ding plane, limit rib inner face and the rib shirt rim, the end of mainboard 1, and the different designs length that its quantity is looked this scaffold floor can have one to several.

Mainboard 1 by with end rib plate 2, the welding of middle floor 3 can prevent the unstability of mainboard limit rib and end rib, thereby guarantees the bulk strength and the rigidity of this scaffold floor.

Accessory card hook assembly (Fig. 5, Fig. 6).Grab 5 is to use garden steel bending forming, and the both sides, top are similar to the window catch shape, and the bottom is transited into U-shaped and welds mutually with nut 7.The bolt 8 of the closed suspension ring of one end band screws in the nuts 7, when this scaffold floor needs fix with scaffold cross bar, grab 5 can be hooked the end rib of mainboard bottom, tights a bolt 8 to get final product.Because grab 5 is shaped through continuous bend, there is elastic deformation after stressed, thereby can make this scaffold floor and scaffold cross bar realize that elasticity clamps, when this scaffold floor in use was subjected to vibration, impacts or is mounted to inclined walks, this scaffold floor still can be fastenedly connected with scaffold cross bar.Because this scaffold floor all can be connected with scaffold cross bar in any position of length direction, connect more convenient reliable than slide fastener hook-type.Simultaneously,, can screw bolt with reinforcing bar, bottle opener, pliers, adjustable wrench etc. when fastening, be convenient to site operation because bolt 8 is taked suspension ring shape.

Annex jam plate, lock dog assembly (Fig. 7, Fig. 8) are used when adjacent two these scaffold floors need laterally (side direction) locking.Jam plate 9 is the perforated plates by the band steel bending forming, and handle 12 is by garden steel bending forming, and lock dog 10 is with gasket ring 11, handle 12, when jam plate 9 is assembled mutually, is integral with the rotating shaft position plug welding of handle 12.During use, adjacent two these scaffold floors that will lock are earlier drawn close, lock dog 10 is in imaginary line position among the figure (being that handle 12 is in the n position), jam plate 9 right-hand member crotches are placed on the inner skirt of 1 end of this scaffold floor mainboard rib, jam plate 9 is moved to left, jam plate 9 left crotches are hooked on the inner skirt of another scaffold floor mainboard 1, again jam plate 9 is moved to right, then handle 12 is pulled to m by position n, the left crotch of jam plate 9 and lock dog 10 are tightly clamped the shirt rim of two adjacent these scaffold floors and are realized locking.Because handle 12 is in pulling process, the end rib of two adjacent scaffold floor mainboards 1 is stressed and slightly distortion can realize elastic locking by its screen resilience.Because lock dog 10d, e, f each point are to the distance at the rotating shaft center 0 of handle 12, the e point is less than the f point, and elastic force can make lock dog 10 be stabilized in the diagram latched position; Distance was maximum in d o'clock to 0 o'clock, when lock dog 10 in locking or when unclamping, can play position-limiting action.When removing this annex, only need handle 12 is pulled n from position m, jam plate 9 left sides are pushed away, take off left end, then can take off right-hand member.Pull handle 12, can put the short tube reinforcement in case of necessity, also available hand hammer etc. beats shank.Utilize this annex can be with two adjacent scaffold floors at any locking position, therefore two uneven also harmless lockings of this scaffold floor make firmly just.

The utility model is compared the beneficial effect that has with background technology: because present existing similar thin Steel scaffold board, its end rib seems thin, the center of gravity of scaffold floor cross section (centre of form) position is too near the mainboard end face and away from rib base, the end, make bending resistant section modulus w value less than normal, its bulk strength, rigidity thereby on the low side.This scaffold floor is because rib at the bottom of having adopted the reinforcement of compound shape, increased the sectional area of end rib, position of centre of gravity on this scaffold floor cross section is moved down, center of gravity to the distance on rib base, the end reduces, increased bending resistant section modulus w value, made the flexural strength of its unit mass (deadweight) and bulk strength, rigidity all obviously greater than existing like product.Existing at present thin Steel scaffold board, its highly all less than, equal 50 millimeters, this scaffold floor is then by the series exploitation principle, except that the specification that keeps existing 50 millimeters plate hights, (accompanying drawing 1～Fig. 5 is that pressing board is wide 250 millimeters to set up 55 millimeters of plate hights, the appearance proportion relation that plate hight is 55 millimeters is drawn, it is highly just in time contour with combined steel formwork) the extra-heavy type of reinforced and plate hight 60 (or 63) millimeter, the bending resistant section modulus w value of this scaffold floor is further improved, the intensity and the bulk strength of its unit deadweight, the existing like product of rigidity has bigger raising, increase its supporting capacity in architectural decoration construction, can overloading people or many piles material; Simultaneously, counter-bending, distortion, the warpage ability of this scaffold floor also are improved, and can increase application life under equal service condition.The length of this scaffold floor can be made within the specific limits as required.Anti-slide opening adopts tubaeform tubular construction with holes, and is better than existing convex closure shape and garden, plane hole shape non-skid property.When this scaffold floor and annex are used, convenient, safety, reliable.

This scaffold floor and annex thereof all can be implemented to make in the machine works that certain basis is arranged.Wherein mainboard 1 is a key component, and manufacture difficulty is big than other parts, and the manufacture craft process can be considered as follows:

1, steel sheet is pressed the expansion length and width size shear blanking of mainboard 1.

2, on the forcing press by mould successively respectively with both sides at the bottom of the rib bending forming.

3, on forcing press (or bender), utilize bender to suppress the dual-side rib respectively.

4, stamping-out goes out each tubaeform anti-slide opening while drawing to utilize porcupine die gradation segmentation on forcing press.

When production lot is big especially, can consider to make plate bending rolls, adopt the thin steel roll plate of width scale, with mainboard one-time continuous rolling forming.

Other component part of this scaffold floor, and the part of each annex, preparation method is comparatively simple, does not give unnecessary details at this.

Claims (9)

1, a kind of high strength steel scaffold floor, the mainboard (1) that it is characterized in that this scaffold floor bends to special cross-section by steel sheet, and anti-slide opening arranged, it is whole that mainboard (1) becomes with end rib plate (2), middle floor (3), Connection Card (4) assembly welding, fixes with scaffold cross bar (6) by grab (5), bolt (8), nut (7); By jam plate (9), lock dog (10) and handle (12), adjacent two scaffold floors laterally can be locked.

2, according to the described scaffold floor of claim 1, two side bottoms of its feature mainboard (1) have continuous bend (b) to form rib at the bottom of the reinforcement of compound shape, and this end rib cross sectional shape can be continuous V-arrangement, continuous U-shaped, L shaped or V, U, L shaped any combination shape continuously.

3, according to the described scaffold floor of claim 1, the anti-slide opening (a) of its feature mainboard (1) is a plurality of with holes tubaeform cylindrical shells of arranging according to certain rule.

4, according to the described scaffold floor of claim 1, there are two breach (c) bottom surface of its feature end rib plate (2).

5, according to the described scaffold floor of claim 1, its feature Connection Card (4) is the resilient clip through continuous bend.

6, according to the described scaffold floor of claim 1, its feature grab (5) is the elastic carrier that is transited into U-shaped by top two approximate window catch shapes, bottoms, and it and nut (7) are welded into integral body.

7, according to the described scaffold floor of claim 1, the lower end of its feature bolt (8) is the suspension ring shape.

8, according to the described scaffold floor of claim 1, its feature jam plate (9) is a twisted plate with holes.

9, according to the described scaffold floor of claim 1, its feature lock dog (10) be with jam plate (9), gasket ring (11), handle (12) when assembling mutually, the setting locking bloom that is welded into one with handle (12).

Images