CN104975707A - Trellis and its triangular support body - Google Patents

Abstract

The invention relates to a right-angled triangle support frame body (1) for anchoring on an exterior wall and an hollow shed frame for anchoring on the exterior wall, wherein the support frame body comprises an upper horizontal beam (102), a vertical beam (101) which forms a right angle with the upper horizontal beam and an oblique beam (103) which connects the upper horizontal beam and the vertical beam, and the support frame body is anchored on the exterior wall by solid pieces through holes (106) on the vertical beam, which is characterized in that the upper horizontal beam (102), which is especially square, is provided with a plurality of spaced narrow and long holes (107) so as to facilitate the components such as a workbench to be lapped on the support frame body through connecting pieces.

Description

Trellis and its triangular support body

technical field

The present invention relates to high-altitude brackets or scaffolds for external wall repair work during construction works , in particular to fast detachable platforms or frames installed on, for example, the external wall of a unit.

Background technique

For external wall repair work, water supply pipe installation and repair, gas delivery pipe inspection and repair, air-conditioning installation and repair, window installation and removal, etc., it is necessary to set up temporary workbench/suspended scaffolding on the external wall of the unit. Among them, two or more dog jibs are installed on the outer wall of the unit to provide enough support to build a scaffold on it. Generally, the bamboo branches are bound and fixed on the dog arm frame with nylon strips.

Dog arm suspended bamboo scaffolding (commonly known as hanging shed) is often used in building decoration and maintenance projects. In recent years, many serious human fall accidents have involved erecting, dismantling, or using such suspended scaffolds.

Because the bamboo branches of the bamboo shed are not durable and may have certain potential risks, and the nylon strips cannot be reused, the materials are wasted, especially when the bamboo shed is dismantled, especially the nylon strips may cause nuisance.

The dog arm frame is also called a triangular support frame body, which is a right triangle and includes an upper horizontal beam, a vertical beam at right angles to the upper horizontal beam, and an oblique beam connecting the upper horizontal beam and the vertical beam. The triangular frame is anchored to the outer wall by means of fasteners (such as internal expansion anchor bolts called pop screws) on the vertical beams. Generally, the dog jib is composed of angle iron with L section, that is, the horizontal beam, vertical beam and inclined beam are all angle iron with L section. Generally, on the upper horizontal beams of a pair or three dog jibs, bamboo branches are bound and fixed with nylon strips to form a workbench. Set up fences at the outside of the workbench.

The existing dog jibs are divided into "I" type dog jibs and "T" type dog jibs.

The third pull bolt of the traditionally used "I" type dog arm is generally too low to the working position, and it is difficult to install, resulting in some workers not installing it, which reduces the stability of the dog arm anchored on the structure. On the other hand, the lowest installation screw position of the "I" type dog arm frame is far away from the edge of the window. When the shedman tries to lean out of the window to drill a hole at this position or install the pop-up screw, the outer surface of the body will often be damaged. If the inclination is too large, the risk of construction will be increased.

The "T" type dog jib is equipped with a "T" head part at a right angle to the vertical beam and the upper horizontal beam at the connection between the vertical beam and the upper horizontal beam, and the "T" head part is also anchored on the outer wall , generally there can be at least two holes for popping screws. The design of the "T" type dog arm frame is characterized by the fact that the bolts anchoring the "dog arm frame" are mainly embedded in the upper part of the frame, which is more convenient than the "I" type, making workers more willing and safe to install The three pop-up screws of the "dog arm stand" make the installation of the dog arm stand easier and more stable.

CN201794286U discloses a kind of suspended combined external scaffolding and its triangular support device, the triangular support device includes a triangular frame body and a connector, and the triangular frame body is a right triangle, which includes an upper horizontal beam, a vertical beam and an oblique beam; The horizontal beam and the vertical beam are an integrated structure formed by bending the angle iron at right angles; the horizontal beam is provided with scaffolding tubes and rods. The suspended combined outer scaffold includes a triangular support device and a scaffold tube space truss installed on it, and the lower end of the vertical tube of the scaffold tube space truss is sleeved on the scaffold tube sleeve rod.

Contents of the invention

The present invention provides an improved triangular support frame body in the prior art, especially a safe suspended scaffold using a metal frame (such as steel), which reduces the risk, greatly improves the work safety in mid-air, and guarantees that workers or The life of the people around, and the bamboo branches and nylon strips of the bamboo shed are more environmentally friendly, and can be recycled to reduce the waste of materials.

The invention proposes a right-angled triangular support frame body for anchoring on the outer wall, including an upper horizontal beam, a vertical beam at right angles to the upper horizontal beam, and an oblique beam connecting the upper horizontal beam and the vertical beam. The support frame body passes through the vertical beam. The holes are anchored on the outer wall with fasteners, and it is characterized in that there are a plurality of narrow and long holes on the upper horizontal beam, so that the scaffolding connecting members such as panels can be lapped on the supporting frame body.

In addition, the profile section of the upper horizontal beam is square. The upper horizontal beam is a square hollow piece. The upper horizontal beam has elongated holes on all four sides. The upper horizontal beam has barbs at the outermost point to prevent the workbench from falling outwards. The workbench has elongated holes for the connection of the upper horizontal beam and the workbench. The support body or/and components are metal. The upper horizontal beam or/and the vertical beam are formed of an L-section angle iron material. The supporting frame body is a "T" type dog arm frame.

It also proposes a suspended scaffold anchored on the outer wall, which has at least two supporting frame bodies, a workbench installed on the support frame bodies, and a fence is provided on the outside of the workbench. The supporting frame body is especially a "T" type dog arm frame.

The fence consists of a mounting base mounted on a workbench for a vertical pole, a vertical pole inserted into the mounting base, and a cross bar connected to the vertical pole. The vertical bar and the cross bar are square hollow parts with long holes on at least two faces.

Description of drawings

Fig. 1 is the schematic diagram of right-angled triangle support frame body of the present invention;

Fig. 2 is the perspective view of working plate;

Figure 2A is a perspective view of another deformed working plate;

Figures 3 and 3A are a perspective view and a top view of the mounting base of the vertical rod, respectively;

Fig. 4 is the plan view of long connecting rod;

Fig. 5 is the plan view of short connecting rod;

Figure 6 is a perspective view of the first type of connector;

Fig. 7 is a perspective view of a second type of connector;

Fig. 8 is the schematic diagram that the working plate is installed on three pairs of right triangle support frames of the present invention;

Fig. 9 is a schematic diagram of installing a right-angled triangle support frame on the working plate of Fig. 8;

Fig. 10 is a schematic diagram of a mounting base on which a vertical rod is installed on the working plate in Fig. 9;

Fig. 11 is the schematic diagram that vertical bar is further installed in Fig. 10;

Fig. 12 is the schematic diagram that cross bar is further installed outside in Fig. 11;

Fig. 13 is a schematic diagram of further installing short crossbars on the left and right in Fig. 12, wherein Fig. 13A is a partially enlarged schematic diagram of the connection between the long crossbar and the short crossbar;

Fig. 14 is a schematic view of further installation of the connecting rod in Fig. 13, wherein Fig. 14A is a partially enlarged schematic view of the connection between the long cross bar and the connecting rod.

detailed description

In Fig. 1, a metal right-angled triangular support frame body 1 for anchoring on a building such as an outer wall is shown, in particular a "T"-shaped dog arm frame, which includes an upper horizontal beam 102 at right angles to the upper horizontal beam. Vertical beam 101 and the inclined beam 103 that upper horizontal beam and vertical beam are connected. The "T" type dog jib is provided with a "T" head part 104 at a right angle to the vertical beam 101 and the upper horizontal beam 102 at the joint between the vertical beam and the upper horizontal beam. The supporting frame body is anchored on the outer wall with fasteners (not shown) through the vertical beams 101 and the holes 106 (the total number is not less than 3) on the "T"-shaped head part 104, and the upper horizontal beam 102 has a plurality of The narrow and long holes 107 are used to facilitate scaffolding components such as the working board 2 to be lapped onto the supporting frame body through connectors such as bolts, as shown in FIG. 8 . Wherein, as shown in FIG. 1 , the cross section of the upper horizontal beam 102 is, for example, square (ie, rectangular or square), especially a square hollow member, and has long holes on four sides.

Wherein the elongated hole can provide a flexible connection with another piece.

In addition, the upper horizontal beam 102 preferably has a barb 105 at the outermost point to prevent the connection members of the plates and the like from falling outwards.

As shown in FIG. 2 , the working board 2 has multiple rows of parallel longitudinally extending elongated holes 201 to facilitate fixing the working board on the supporting frame body 1 through connecting pieces such as bolts. In addition, at both ends of the working plate, there are also long holes 202 extending laterally.

The installation base 3 of the vertical rod in Fig. 3, the upper opening of the installation base is used to insert the vertical rod and matches it, and the side has a circular hole 301 for fixing the vertical rod inserted therein with bolts. A long hole 302 (see FIG. 3A ) is opened on the closed bottom end 310 of the installation base for fixing to the longitudinally extending long hole 201 or the transversely extending long hole 202 on the working board 2 through a connecting piece such as a bolt.

The connecting rods in Figures 4, 5 are of identical square section but of different lengths, wherein at least two surfaces have along a plurality of mutually spaced elongated holes for the passage of eg bolts. The connecting rods can form vertical rods, long horizontal rods, short horizontal rods or connecting rods etc. in the present invention.

The connector 8 in Fig. 6 is formed by a U-shaped part 801, and each side has a relevant elongated hole 803, and one end of the connector 8 has a connector 802, in which a circular hole 804 is formed, and the connector 8 can be used As shown for example in FIG. 13A , the short rail 6 is connected to the part 601 of the long rail 5 . Similarly, for the connecting piece 8A in FIG. 7 , the connecting piece is inclined, preferably at 45 degrees, and the hole in it is a long hole 804A. This connecting piece 8A with an inclined connecting piece can be used as a part 701 for connecting the connecting rod 7 mounted at an oblique angle to the long cross bar 5, for example as shown in FIG. 14A .

Figures 8-14 are the steps of forming a suspended scaffold, and a fence is provided outside the workbench. First, at least two right-angled triangle support frame bodies 1 are arranged on the same level on the outer wall. Three right-angle triangle support frame bodies 1 are shown in FIG. The component is fixed to the right triangle support frame body 1 through the long hole 201 extending longitudinally.

In FIG. 9 , another two right-angled triangular support frame bodies 1 ′ are installed at the left and right ends of the working board 2 . In Fig. 10, the installation base 3 for the cube of the vertical bar 4 is installed near the outer edge of the work plate 2 (i.e. except the side close to the outer wall), wherein the bottom end is passed through by connecting pieces such as bolts, etc. The long hole 302 fixes the installation base 3 on the working board 2 , and then as shown in FIG. 11 , inserts the vertical bar and installs the vertical bar 4 on the corresponding installation base 3 through connecting pieces such as bolts. Then, as shown in FIG. 12, the long horizontal bar 5 is connected parallelly to the vertical bar 4 through the connection point 51, and as shown in FIG. The cross bars 6 are connected in parallel to the vertical bars 4, thus forming a fence. In addition, one of the long horizontal bars 5 is preferably connected to the upper pair of support frame bodies 1, and the connecting rod 7 installed at an oblique angle can also be connected to the long horizontal bar 5 on the left outer side through the component 701, as shown in the figure 14, 14A.

As shown in FIG. 8 , a pair of mounting bases 3 near the outer wall are installed at the left and right ends of the workbench with the long holes 202 extending transversely of the workboard 2 .

The material according to the invention is preferably entirely made of metal such as steel, in particular a square hollow part with elongated holes on at least two sides.

Vertical rods, long horizontal rods, short horizontal rods or connecting rods have structures such as recesses to match the head of the bolt or the corresponding nut, so as to prevent one of the bolt and the nut from rotating when tightening, so as to facilitate loading and unloading. The present invention uses connecting parts such as bolts, so the connection of the suspended scaffold is simpler and easier than that of the traditional suspended bamboo scaffold, and the connection of the bolts is more stable and safe.

In addition, the steps/methods of forming the suspended scaffolding can also be different, for example, first install two supporting frame bodies 1' on the building such as the outer wall, and then pass the upper part of the vertical rod 4 through the length of the vertical rod through the connecting piece. The holes are respectively connected to the supporting frame body 1', so that the left and right ends of the working board 2 are respectively connected to the lower end of the vertical rod 4, that is, the working board 2 is hung in the air by the supporting frame body 1'. Then, if possible or necessary, a supporting frame body 1 is installed under the working board 2 to further support the working board 2 . This method is especially suitable for the position where the work is far away from, for example, the window, or the maintenance work under the so-called protruding large window sill.

Claims (12)

1. for being anchored at the right-angled triangle supporting frame (1) on outer Wall, the cant beam (103) comprising horizontal beam (102), the vertical beam at a right angle with upper horizontal beam (101) and upper horizontal beam and vertical beam are connected, supporting frame is anchored on outer Wall by the hole (106) on vertical beam with securing member, it is characterized in that, upper horizontal beam (102) has multiple long narrow hole (107) separately, snapped on supporting frame by connector to facilitate the set member of such as workbench.

2. supporting frame as claimed in claim 1, it is characterized in that, the cross section of upper horizontal beam is square.

3. supporting frame as claimed in claim 2, it is characterized in that, upper horizontal beam is square hollow part.

4. supporting frame as claimed in claim 2 or claim 3, it is characterized in that, upper horizontal beam all has elongated hole on four sides.

5. supporting frame as claimed in claim 1, it is characterized in that, upper horizontal beam has overhead kick in outermost, outwards falls to avoid workbench.

6. supporting frame as claimed in claim 1, it is characterized in that, workbench has elongated hole, to keep supplying the connection of horizontal beam and workbench.

7. supporting frame as claimed in claim 1, it is characterized in that, supporting frame is or/and component is metal.

8. supporting frame as claimed in claim 1, it is characterized in that, upper horizontal beam is or/and vertical beam is the angle bar in L cross section.

9. supporting frame as claimed in claim 1, it is characterized in that, supporting frame is T-shape angle bracket.

10. be anchored at the empty formula frame of Hanging on outer Wall, there are at least two supporting frames, and the workbench be arranged on supporting frame and fence is set in the outside of workbench, it is characterized in that, supporting frame is supporting frame as claimed in claim 1.

The empty formula frame of 11. Hanging as claimed in claim 10, it is characterized in that, fence comprises by installing on the table for the mounting base of vertical rod, the vertical rod being inserted into mounting base and the cross bar be connected with vertical rod.

The empty formula frame of 12. Hanging as claimed in claim 11, it is characterized in that, vertical rod, cross bar are at least two square hollow parts wearing elongated hole.