CN212897455U

CN212897455U - Prevent portable scaffold frame that topples

Info

Publication number: CN212897455U
Application number: CN202021140958.8U
Authority: CN
Inventors: 楼颖; 方芸; 陆凌伟; 叶思雨; 王炜萍
Original assignee: Zhejiang Zhongtian Hengzhu Steel Structure Co ltd
Current assignee: Zhejiang Zhongtian Hengzhu Steel Structure Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-04-06
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a prevent portable scaffold frame that topples belongs to the construction equipment field. In the scaffold, two parallel gantries are connected and fixed through a plurality of diagonal draw bars to form a supporting base; the operating platform comprises a scaffold board, a supporting board and a fence; a square tube connecting piece is respectively fixed at the positions of four corner points of the scaffold board; the four square tube connecting pieces are respectively arranged on the four vertical supporting rods of the two door frames, so that the scaffold board is integrally and horizontally carried on the supporting base; the supporting plate is laid above the scaffold plate; the fence is fixed on the scaffold board; the fixing rod is L-shaped and used for hooking an external fixture and preventing the scaffold from overturning to the side away from the external fixture. The utility model discloses a dead lever of L type for the scaffold frame can overlap joint on outside girder steel or wall body steadily, can prevent to appear toppling in the use with the help of girder steel or wall body fastening, improves the security of construction.

Description

Prevent portable scaffold frame that topples

Technical Field

The utility model belongs to the construction equipment field, concretely relates to prevent portable scaffold frame of toppling.

Background

In the construction process of a high-rise frame structure, the construction of outer facades above platforms such as balconies and the like is often needed. The ordinary scaffold frame that removes outside does not have the safeguard measure, and the situation of falling object in the high altitude easily appears, and ordinary scaffold frame that removes can't fix with the help of girder steel or wall body in addition, if the appearance turns on one's side, causes the incident easily.

In the prior art, the invention patent with the application number of CN201610314595.7 discloses a scaffold convenient to move, which comprises scaffold cross bars and scaffold vertical bars arranged at two ends of the scaffold cross bars, wherein the scaffold vertical bars are connected with support columns through scaffold support bars connected with the scaffold cross bars, a plurality of rows of at least two height adjusting holes are correspondingly arranged on the scaffold support bars and the support columns and fixed through fixing parts, the scaffold cross bars and the scaffold support bars are fixed through locking parts, a support base is arranged at the bottom of each support column, a retractable pulley is arranged at the bottom of each support base and connected through a fixed end, and an anti-inclination support bar is arranged on the outer side of each support column. Although this scaffold can prevent the scaffold slope through the design of preventing the bracing piece that inclines, because the whole focus of scaffold is higher, this type of bracing piece can be difficult to provide sufficient holding power when toppling, poor security and stability are still relatively poor.

Therefore, it is highly desirable to provide a movable scaffold capable of ensuring overturn prevention to improve the safety of construction.

Disclosure of Invention

An object of the utility model is to solve the problem that exists among the prior art to a prevent portable scaffold frame that topples is provided.

The utility model discloses the concrete technical scheme who adopts as follows:

a movable scaffold for preventing overturn comprises a portal frame, an operating platform and a fixed rod;

the two portal frames are arranged in parallel at intervals, and are connected and fixed through a plurality of diagonal draw bars to form a supporting base;

the operating platform comprises a scaffold board, a supporting board and a fence; the scaffold board is fixed into a rectangular frame by a plurality of transverse and longitudinal keels in a staggered manner, and a square pipe connecting piece is fixed at each of the four corner positions of the scaffold board; the four square tube connecting pieces are respectively arranged on the four vertical supporting rods of the two door frames, so that the scaffold board is integrally and horizontally carried on the supporting base; the supporting plate is laid above the scaffold plate; the fence is fixed on the scaffold board, three sides of the fence are enclosed, and the other side of the fence is open;

the dead lever is L shape, and its horizontal part is fixed in the open one side of scaffold board through square pipe connecting piece, and its vertical part extends to the horizontal part top for catch on outside fixture, prevent that the scaffold frame from toppling to the one side of keeping away from outside fixture.

Preferably, the square pipe connecting piece comprises a square steel pipe and a connecting bolt, the inner cavity of the square steel pipe is communicated, one or more pairs of through holes are formed in the pipe body, and the connecting bolt radially penetrates through the pipe body and extends into an external rod to be fixed in the pipe body through the through holes to enable the square pipe connecting piece and the external rod to be fixed to be relatively fixed.

Preferably, the square steel tube is provided with two pairs of through holes, and two ends of the square steel tube are respectively used for being fixed with one external rod piece.

Preferably, the door frame is provided with a ladder stand, and the bottom of the door frame is supported on the ground through universal wheels.

Preferably, the fence comprises four vertical rods and a plurality of transverse tie rods, the four vertical rods are respectively fixed on four square pipe connecting pieces at four corners of the scaffold board, and each transverse tie rod is connected with the vertical rod through a connecting pin to form the safety fence.

Furthermore, the vertical rod and the transverse tie rod are both circular tubes and are detachably fixed with each other through a connecting pin.

Preferably, the supporting plate is a hard wire mesh or a wood plate.

Preferably, the end part of the diagonal draw bar is provided with a pin hole, the portal frame is welded with a connecting pin, and the end part of the diagonal draw bar and the portal frame are detachably fixed through the connecting pin.

Preferably, the door frame is formed by welding round steel tubes.

Preferably, in the square pipe connecting piece, a square steel pipe and an external rod piece to be fixed inserted into an inner cavity of the square pipe connecting piece form clearance fit or transition fit.

Compared with the prior art, the utility model, following beneficial effect has:

1) the utility model discloses an among the scaffold frame, all through the detachable installation of side union piece between portal, operation platform and the dead lever, the mode that the assembled is connected has easy dismounting, transports convenient characteristics.

2) The utility model discloses a dead lever of L type for the scaffold frame can overlap joint on outside girder steel or wall body steadily, can prevent to appear toppling in the use with the help of girder steel or wall body fastening, improves the security of construction.

3) The utility model discloses a cat ladder is established to the portal, and the constructor of being convenient for can borrow the ordinary scaffold board of cat ladder installation from top to bottom, but the adjustable platform height, the universal wheel that can brake is equipped with to the bottom simultaneously, the removal and the fixing of the scaffold frame of being convenient for.

4) The utility model discloses increased the protection railing on operation platform, can install the protection network additional, improved the construction security.

5) The utility model discloses a scaffold frame material is simple, and the common raw materials processing of usable job site can greatly reduced make and maintenance cost.

Drawings

Fig. 1 is a schematic structural view of a movable scaffold for preventing overturning;

FIG. 2 is a schematic view of the gantry structure;

FIG. 3 is a schematic view of the connection of the scaffold board and the fixed rod;

FIG. 4 is a schematic structural view of a square tube connector;

FIG. 5 is a schematic view of the connection position of the vertical rod and the transverse rod of the fence;

FIG. 6 is a schematic view of the connection between the scaffold and the external steel beam at a viewing angle;

FIG. 7 is a schematic view of the connection between the scaffold and the external steel beam from another view angle;

fig. 8 is a schematic view of a first installation of the scaffolding;

fig. 9 is a schematic view of a second installation of the scaffolding;

fig. 10 is a schematic view of a third installation of the scaffolding;

the reference numbers in the figures are: the device comprises a portal frame 1, a diagonal draw bar 2, a scaffold board 3, a square pipe connecting piece 4, a square steel pipe 401, a connecting bolt 402, a supporting plate 5, a fence 6, a fixing rod 7, a connecting pin 8, a steel beam 9, a ladder stand 101 and a universal wheel 102.

Detailed Description

The invention will be further elucidated and described with reference to the drawings and embodiments. The utility model discloses in the technical characteristics of each embodiment under the prerequisite that does not conflict each other, all can carry out corresponding combination.

As shown in fig. 1, in a preferred embodiment of the present invention, there is provided a movable scaffold for preventing overturning, whose main structural components include a gantry 1, an operation platform and a fixing rod 7.

The structural shape of the gantry 1 is shown in fig. 2, and the gantry can be formed by welding a plurality of round steel tubes. The gantry 1 can be provided with a ladder 101 for the constructors to climb upwards, and meanwhile, the bottom of the gantry 1 is supported on the ground through universal wheels 102 for the convenience of moving the scaffold. The utility model discloses a portal 1 has two, and both are parallel and keep certain interval, connect fixedly through four diagonal draw bars 2 between two portals 1, form the support base that is used for installing operation platform. The end part of the diagonal draw bar 2 is provided with a pin hole, the portal 1 is welded with a corresponding connecting pin, and the end part of the diagonal draw bar 2 is detachably fixed with the portal 1 through the connecting pin. The vertical support rods on the two sides of the portal frame are provided with bolt holes, and can be connected with the scaffold board 3 through bolts.

The operation platform comprises a scaffold board 3, a support board 5 and a fence 6. As shown in fig. 3, the scaffold board 3 is fixed by a plurality of transverse and longitudinal keels in a staggered manner to form a rectangular frame, and meanwhile, a square pipe connecting piece 4 is respectively welded and fixed at four corner positions of the scaffold board 3. The four square pipe connecting pieces 4 are respectively arranged on four vertical supporting rods of the two door frames 1, so that the scaffold board 3 is wholly and horizontally carried on the supporting base. And the clearance is too big between the fossil fragments of scaffold board 3, is unfavorable for constructor to stand or equipment is placed, consequently can be with one or polylith backup pad 5 tiled in scaffold board 3's top, form operation platform. The supporting plate 5 can be made of hard flat plate materials such as hard wire netting or wood plates according to actual needs.

The utility model discloses in, the connection between portal 1, operation platform and the dead lever 7 mainly is realized through square pipe connection spare 4. As shown in fig. 4, the square pipe connector 4 is composed of a square steel pipe 401 and a connecting bolt 402, both ends of the square steel pipe 401 are open, and the inner cavity is through. An external rod piece to be fixed can be inserted into one end of the square steel tube 401, and a screw hole is also formed in the rod piece. One or more pairs of through holes are formed in the pipe body, and a connecting bolt 402 can penetrate through the pair of through holes and further radially penetrate through the pipe body and the external rod piece to be fixed, so that the square pipe connecting piece 4 and the external rod piece to be fixed are relatively fixed. For example, after the top of the vertical support rod at the two sides of the gantry is inserted into the vertical square steel tube 401, the vertical square steel tube can be fixed by penetrating and tightening a connecting bolt 402.

The number of the through holes in the square steel tube 401 can be determined according to the number of the external rod pieces required to be fixed, if the rod pieces are required to be fixed at two ends, two pairs of through holes can be formed, and the two ends of the square steel tube 401 are respectively used for being fixed with one external rod piece. In order to ensure the stability of the square pipe connecting piece 4 and the external rod piece, the size of the square steel pipe 401 should be reasonably selected, so that the square steel pipe 401 and the external rod piece to be fixed inserted into the inner cavity of the square steel pipe form clearance fit or transition fit, and the clearance between the square steel pipe 401 and the external rod piece to be fixed is prevented from being too large.

In this embodiment, the four square tube connectors 4 at the four corners of the operation platform need to be connected to the vertical rods of the fence 6 in addition to the top of the gantry 1. The enclosure 6 is composed of four uprights and a number of transverse tie bars. As shown in fig. 5, the vertical rod and the transverse tie rod are both made of round tubes, and are detachably fixed with each other through a connecting pin 8. Four pole settings are fixed in on the top of four square pipe connecting pieces 4 in scaffold board 3 four corners respectively, and every horizontal tie rod all is connected with the pole setting through connecting pin 8, constitutes the security fence. The fence can be externally provided with a fence or a warning sign according to the requirement. For the convenience of construction, the rail 6 is enclosed on three sides, the other side is open, and the open side is used for construction operation.

The traditional scaffold frame has the risk of toppling itself, and the utility model provides a dead lever 7's effect is in order to prevent that it from appearing toppling. Referring to fig. 3, each fixing rod 7 is L-shaped and is formed by welding and fixing a horizontal circular tube and a vertical circular tube at 90 °. The horizontal round pipe is fixed on the open side of the scaffold board 3 through the square pipe connecting piece 4, and the vertical round pipe is vertically arranged above the horizontal round pipe and extends to the upper part of the horizontal part. As shown in fig. 6 and 7, when in use, the scaffold can hook the external fixture to prevent the scaffold from overturning to the side away from the external fixture.

The utility model discloses installation method in the work progress as follows:

first, two gantries 1 are connected by a diagonal member 2 to form a support base, as shown in fig. 8.

Then, the scaffold board 3 and the upright of the fence 6 are installed, the scaffold board 3, the upright and the gantry 1 are connected through bolts of the square pipe connecting piece 4, and an iron wire net is laid on the scaffold board 3 as an operation platform, as shown in fig. 9.

Finally, fixing rods 7 are installed to fix the scaffold on the external steel beams 9, and transverse tie bars are installed to form a safety fence together with the vertical rods, as shown in fig. 10.

The utility model discloses a remove the removal scaffold frame, mountable protection rail can be with the help of wall body, the fixed self of girder steel to improve the security of construction.

The above-mentioned embodiments are merely a preferred embodiment of the present invention, but it is not intended to limit the present invention. Various changes and modifications can be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, all the technical schemes obtained by adopting the mode of equivalent replacement or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A movable scaffold for preventing overturn is characterized by comprising a portal frame (1), an operating platform and a fixed rod (7);

the two portal frames (1) are arranged in parallel at intervals, and the two portal frames (1) are connected and fixed through a plurality of diagonal draw bars (2) to form a supporting base;

the operating platform comprises a scaffold board (3), a supporting board (5) and a fence (6); the scaffold board (3) is fixed into a rectangular frame by a plurality of transverse and longitudinal keels in a staggered manner, and a square pipe connecting piece (4) is respectively fixed at the positions of four corners of the scaffold board (3); the four square tube connecting pieces (4) are respectively arranged on four vertical supporting rods of the two door frames (1), so that the scaffold board (3) is integrally and horizontally carried on the supporting base; the supporting plate (5) is paved above the scaffold plate (3); the fence (6) is fixed on the scaffold board (3), three sides of the fence are enclosed, and the other side of the fence is open;

the fixing rod (7) is L-shaped, the horizontal part of the fixing rod is fixed on one open side of the scaffold board (3) through the square pipe connecting piece (4), and the vertical part of the fixing rod extends towards the upper part of the horizontal part and is used for hooking an external fixture and preventing the scaffold from overturning to one side away from the external fixture.

2. The overturn-preventing mobile scaffold according to claim 1, wherein the square tube connector (4) is composed of a square steel tube (401) and a connecting bolt (402), the inner cavity of the square steel tube (401) is through, and one or more pairs of through holes are opened on the tube body, the connecting bolt (402) radially penetrates through the tube body and an external rod to be fixed which extends into the tube body through the through holes, so that the square tube connector (4) and the external rod to be fixed are relatively fixed.

3. The overturn-preventing mobile scaffold of claim 2, wherein the square steel tube (401) has two pairs of through holes, and both ends of the square steel tube (401) are respectively used for fixing with an external rod.

4. A mobile scaffold against toppling according to claim 1, characterized in that the gantry (1) is provided with a ladder (101), and the bottom of the gantry (1) is supported on the ground by means of universal wheels (102).

5. The overturn-preventing mobile scaffold as claimed in claim 1, wherein the fence (6) is composed of four vertical poles fixed to four square pipe connectors (4) at the four corners of the scaffold board (3), respectively, and a plurality of transverse tie bars each connected to the vertical poles through connecting pins to constitute a safety fence.

6. An anti-overturn mobile scaffold according to claim 1, characterized in that the supporting plate (5) is a hard wire mesh or a wooden plate.

7. The overturn-preventing mobile scaffold according to claim 1, wherein the end of the diagonal draw bar (2) is provided with a pin hole, the portal frame (1) is welded with a connecting pin, and the end of the diagonal draw bar (2) is detachably fixed with the portal frame (1) through the connecting pin.

8. An anti-overturn mobile scaffold according to claim 1, characterized in that the gantry (1) is welded from round steel tubes.

9. An anti-toppling mobile scaffold according to claim 5, wherein the vertical rods and the transverse tie rods are made of round tubes and are detachably fixed to each other by connecting pins.

10. The overturn-preventing mobile scaffold according to claim 1, wherein in the square tube coupling member (4), the square steel tube (401) is in clearance fit or transition fit with the external rod member to be fixed inserted into the inner cavity thereof.