Connecting device and scaffold system

Abstract

The utility model provides a connecting device and a scaffold system, and relates to the field of building construction. The connecting device is used for connecting the attached type lifting scaffold and a wall, the connecting device comprises a connecting piece, a first fastening piece and a second fastening piece, the connecting piece comprises a first frame, a second frame and a plurality of sets of connecting rod assemblies, the first frame and the second frame are fixedly connected through the multiple sets of connecting rod assemblies, and a mounting position is arranged in each set of connecting rod assembly; the first fastener penetrates through one mounting position and is fixedly connected with the attached lifting scaffold, and the second fastener penetrates through one mounting position and is fixedly connected with the wall body. According to the attachment type lifting scaffold, the connecting piece serves as a stress main body, the attachment type lifting scaffold and the wall body are connected through the first fastening piece and the second fastening piece, and the connecting stability between the attachment type lifting scaffold and the wall body is improved.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to a connection device and a scaffolding system. Background Art

[0002] At present, in the field of super high-rise building construction, attached lifting scaffolding is recognized by more and more construction units due to its advantages such as convenient operation, safety, reliability, economy and practicality, and its application is becoming more and more common. However, in the design and construction of attached lifting scaffolding, due to the influence of the complexity and variability of the facade of the building structure, the conventional wall-mounted connection device cannot meet the construction site, especially for the case of excessively large structural concave, it is necessary to use connecting parts for transition connection and fixation.

[0003] There are two problems with previous connectors:

[0004] 1. In order to reduce the deadweight and facilitate construction, the connectors are designed as simple surfaces. The forces acting on the wall are usually concentrated loads or linear loads, which require high strength of the rods and concrete. During winter construction, concrete is prone to cracking.

[0005] 2. In order to increase the contact area and reduce the risk of stress concentration, the connectors are designed to be complex and heavy frames, which make the installation labor-intensive and difficult. Utility Model Content

[0006] The purpose of the present application is to provide a connection device and a scaffolding system, which can improve the connection stability between an attached lifting scaffolding and a wall on the basis of a simplified structure.

[0007] In the first aspect, the utility model provides a connecting device, which is used to connect an attached lifting scaffolding and a wall. The connecting device includes a connecting piece, a first fastener and a second fastener. The connecting piece includes a first frame, a second frame and a plurality of connecting rod assemblies. The first frame and the second frame are fixedly connected by a plurality of connecting rod assemblies. Each group of the connecting rod assemblies is provided with an installation position. The first fastener is passed through one of the installation positions and fixedly connected to the attached lifting scaffolding. The second fastener is passed through one of the installation positions and fixedly connected to the wall.

[0008] In an optional embodiment, each group of the connecting rod assembly includes a first connecting rod and a second connecting rod, the first connecting rod is respectively connected to the first frame and the second frame, the mounting position is provided between the second connecting rod and the first connecting rod, and the second connecting rod is respectively connected to the first frame and the second frame.

[0009] In an optional embodiment, the first connecting rod is provided with a first midpoint, the second connecting rod is provided with a second midpoint, the second midpoint is connected to the first midpoint to form a straight line, and the first fastener and the second fastener are both located on the straight line.

[0010] In an optional embodiment, the first frame and the second frame both include a trapezoidal body and an oblique rod, the trapezoidal body is provided with a first bottom rod and a second bottom rod, the oblique rod respectively connects the first bottom rod and the second bottom rod and separates the trapezoidal body into two triangular structures.

[0011] In an optional embodiment, the length of the first bottom bar is defined as d, and the length of the second bottom bar is defined as D, satisfying: 1.5d≤D≤2d.

[0012] In an optional embodiment, the angle between the oblique rod and the first bottom rod is defined as α, which satisfies: 45°≤α≤60°.

[0013] In an optional embodiment, the first fastener includes a first screw and a first washer, a second washer, a first nut and a second nut located on the first screw, the first washer is located on a side of the connecting rod assembly away from the second washer, the first nut is located on a side of the first washer away from the second washer, and the second nut is located on a side of the second washer away from the first washer.

[0014] In an optional embodiment, the second fastener includes a second screw and a third washer, a fourth washer, a third nut and a fourth nut located on the second screw, the third washer is located on a side of the connecting rod assembly away from the fourth washer, the third nut is located on a side of the third washer away from the fourth washer, and the fourth nut is located on a side of the fourth washer away from the third washer.

[0015] In a second aspect, the utility model provides a scaffolding system, comprising an attached lifting scaffolding, a wall and the connecting device described in the aforementioned embodiment, wherein the connecting device is respectively connected to the attached lifting scaffolding and the wall.

[0016] In an optional embodiment, the attached lifting scaffold is provided with a first mounting hole, the first fastener is passed through the first mounting hole, the wall is provided with a second mounting hole, and the second fastener is passed through the second mounting hole.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] Firstly, the present application utilizes the connecting member as the force-bearing body, and connects the attached lifting scaffold and the wall through the first fastener and the second fastener, thereby improving the connection stability between the attached lifting scaffold and the wall.

[0019] Secondly, the present application forms a whole through the first frame, the second frame and multiple groups of connecting rod assemblies, which simplifies the structure of the connecting device, reduces the preparation cost, and facilitates installation and removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 Shows a schematic diagram of the structure of a scaffolding system in some embodiments;

[0022] Figure 2 Shows a schematic diagram of the structure of the connecting device in some embodiments;

[0023] Figure 3 Shown are schematic structural diagrams of connectors in some embodiments;

[0024] Figure 4 A schematic diagram of the structure of a first fastener in some embodiments is shown;

[0025] Figure 5 A schematic structural diagram of a second fastener in some embodiments is shown.

[0026] Description of main component symbols:

[0027] 10-connecting device; 100-connecting piece; 110-first frame; 120-second frame; 130-connecting rod assembly; 131-first connecting rod; 132-second connecting rod; 101-first bottom rod; 102-second bottom rod; 103-first side rod; 104-second side rod; 105-oblique rod; 106-reinforcement plate; 200-first fastener; 210-first screw; 220-first gasket; 230-second gasket; 240-first nut; 250-second nut; 300-second fastener; 310-second screw; 320-third gasket; 330-fourth gasket; 340-third nut; 350-fourth nut; 20-attached lifting scaffold; 21-guide rail support; 30-wall. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Embodiment 1

[0034] See also Figure 1 This embodiment is applicable to the connection between the attached lifting scaffold 20 and the wall 30, where the wall 30 includes but is not limited to structures such as exterior walls or beams.

[0035] See also Figure 2 This embodiment provides a connecting device 10 . Specifically, the connecting device 10 includes a connecting member 100 , a first fastener 200 , and a second fastener 300 .

[0036] Please refer to Figure 1 and Figure 3 The connecting member 100 includes a first frame 110, a second frame 120 and a plurality of connecting rod assemblies 130. The first frame 110 and the second frame 120 are fixedly connected by the plurality of connecting rod assemblies 130, and each connecting rod assembly 130 is provided with a mounting position.

[0037] The first frame 110 and the second frame 120 both include a trapezoidal body and an oblique rod 105. The trapezoidal body is provided with a first bottom rod 101 and a second bottom rod 102. The oblique rod 105 connects the first bottom rod 101 and the second bottom rod 102 respectively and separates the trapezoidal body into two triangular structures.

[0038] This embodiment adopts the triangle stability theorem, so that the stability of the connecting device 10 is further improved, the complexity of the structure is simplified, and the preparation cost is reduced.

[0039] Specifically, the length of the first bottom bar 101 is defined as d, and the length of the second bottom bar 102 is defined as D, satisfying: 1.5d≤D≤2d.

[0040] Through the force analysis, it is found that the force on the oblique rod 105 is the largest, so the oblique rod 105 should meet its own load requirements.

[0041] The included angle between the oblique rod 105 and the first bottom rod 101 is defined as α, which satisfies: 45°≤α≤60°.

[0042] In actual use, the first frame 110 and the second frame 120 have the same shape and size, wherein the trapezoidal body is welded from a plurality of square tubes, the cross-sectional size of the square tube is 50mm×50mm×3mm, the diagonal rod 105 is a round tube, and the diameter of the diagonal rod 105 is 30mm.

[0043] In this embodiment, a reinforcing plate 106 is welded at the corner of the trapezoidal body, thereby further enhancing the strength of the connecting device 10 and preventing overload damage to the connecting device 10. For example, the thickness of the reinforcing plate 106 is 5 mm.

[0044] Furthermore, the trapezoidal body is configured as a right-angled trapezoidal structure. Therefore, in addition to the first bottom bar 101 and the second bottom bar 102, the trapezoidal body also includes a first side bar 103 and a second side bar 104, wherein the first side bar 103 is perpendicular to the first bottom bar 101 and the second bottom bar 102, and one end of the diagonal bar 105 is connected to the right-angle portion, and the other end is connected to the diagonal of the right-angle portion.

[0045] The included angle between the oblique rod 105 and the first side rod 103 is defined as β, which satisfies: 30°≤β≤45°.

[0046] Each connecting rod assembly 130 includes a first connecting rod 131 and a second connecting rod 132. The first connecting rod 131 is connected to the first frame 110 and the second frame 120 respectively. A mounting position is provided between the second connecting rod 132 and the first connecting rod 131, and the second connecting rod 132 is connected to the first frame 110 and the second frame 120 respectively.

[0047] In this embodiment, the installation position is configured as a gap between the first connecting rod 131 and the second connecting rod 132 .

[0048] The first connecting rod 131 has a first midpoint, the second connecting rod 132 has a second midpoint, the second midpoint and the first midpoint are connected to form a straight line. In this embodiment, the first connecting rod 131 and the second connecting rod 132 are set as round tubes, and the size of the first connecting rod 131 and the second connecting rod 132 is 48×3.5 mm.

[0049] Specifically, one set of connecting rod assemblies 130 is disposed between the two first bottom bars 101 , and two sets of connecting rod assemblies 130 are disposed between the two second bottom bars 102 .

[0050] In this embodiment, the trapezoidal body cooperates with multiple groups of connecting rod assemblies 130 to transform the surface into a body, transform the linear load into a surface load, expand the contact surface, and evenly distribute the load of the attached lifting scaffolding 20 to one surface of the wall 30, thereby ensuring the uniformity of force and preventing the concrete from being cracked by concentrated force.

[0051] In addition, this embodiment utilizes the first frame 110, the second frame 120 and multiple groups of connecting rod assemblies 130 to form a whole, fully exerting the mechanical properties of each component itself, reducing the self-weight of the connecting device 10, simplifying the structure of the connecting device 10, reducing the preparation cost, and facilitating installation and removal.

[0052] See also Figure 1 , Figure 2 and Figure 4 The first fastener 200 is passed through an installation position and fixedly connected to the attached lifting scaffold 20. The first fastener 200 is located on a straight line. Since a group of connecting rod assemblies 130 are provided between the two first bottom bars 101 in this embodiment, correspondingly, the number of the first fastener 200 is one.

[0053] The first fastener 200 includes a first screw rod 210 and a first washer 220, a second washer 230, a first nut 240 and a second nut 250 located on the first screw rod 210, the first washer 220 is located on a side of the connecting rod assembly 130 away from the second washer 230, the first nut 240 is located on a side of the first washer 220 away from the second washer 230, and the second nut 250 is located on a side of the second washer 230 away from the first washer 220.

[0054] See also Figure 1 , Figure 2 and Figure 5 The second fastener 300 is passed through an installation position and fixedly connected to the wall 30. The second fastener 300 is located on a straight line. Since two sets of connecting rod assemblies 130 are provided between the two second bottom bars 102 in this embodiment, correspondingly, the number of the second fasteners 300 is two.

[0055] The second fastener 300 includes a second screw rod 310 and a third washer 320, a fourth washer 330, a third nut 340 and a fourth nut 350 located on the second screw rod 310, the third washer 320 is located on a side of the connecting rod assembly 130 away from the fourth washer 330, the third nut 340 is located on a side of the third washer 320 away from the fourth washer 330, and the fourth nut 350 is located on a side of the fourth washer 330 away from the third washer 320.

[0056] In this embodiment, the first fastener 200 and the second fastener 300 are arranged on a straight line, so that the axis of the first fastener 200, the axis of the second fastener 300 and the straight line are located on a vertical plane, and the vertical plane is also the symmetry plane of the first frame 110 and the second frame 120, thereby ensuring the centering of the connecting device 10 and avoiding the connection device 10 from being deflected due to the action of the attached lifting scaffold 20.

[0057] Please refer to Figure 1 , Figure 4 and Figure 5 In this embodiment, the diameters of the first screw 210 and the second screw 310 can be set to be equal. Correspondingly, the height of the installation position matches the diameters of the first screw 210 and the second screw 310. When the first screw 210 or the second screw 310 is inserted into the installation position, the first screw 210 or the second screw 310 will not shake.

[0058] In this embodiment, the first gasket 220, the second gasket 230, the third gasket 320 and the fourth gasket 330 can also be set to be made of steel material, thereby increasing the force range of the connecting device 10, ensuring the connection stability between the attached lifting scaffolding 20 and the wall 30, and protecting the personal safety of construction workers.

[0059] Specifically, the first screw rod 210 and the second screw rod 310 are fully threaded rods, and the diameters of the first screw rod 210 and the second screw rod 310 are both 30 mm, the sizes of the first gasket 220, the second gasket 230, the third gasket 320 and the fourth gasket 330 are all 8 mm×8 mm×3 mm, the first nut 240, the second nut 250, the third nut 340 and the fourth nut 350 are all hexagonal nuts, and the hole diameters are all 30 mm.

[0060] In addition, the present embodiment uses the first bolt and the second bolt to fix the attachment type lifting scaffold 20 and the wall 30, and the connection node is a rigid node, which greatly improves the connection stability.

[0061] Embodiment 2

[0062] See also Figure 1 and Figure 2 The present embodiment provides a scaffolding system, which includes an attached lifting scaffolding 20, a wall 30 and a connecting device 10 of the first embodiment, wherein the connecting device 10 is connected to the attached lifting scaffolding 20 and the wall 30 respectively.

[0063] The attached lifting scaffold 20 includes a guide rail support 21 , the guide rail support 21 is provided with a first mounting hole, and the first fastener 200 is passed through the first mounting hole.

[0064] Please combine Figure 1 and Figure 4 The first screw rod 210 is passed through the first mounting hole, the first gasket 220 is located on the side of the connecting rod assembly 130 away from the guide rail support 21 and abuts against the connecting rod assembly 130, and the second gasket 230 is located on the side of the guide rail support 21 away from the connecting rod assembly 130 and abuts against the guide rail support 21.

[0065] Please continue reading Figure 1 and Figure 2 The wall 30 is provided with a second mounting hole, and the second fastener 300 is passed through the second mounting hole.

[0066] Please combine Figure 1 and Figure 5 The second screw 310 is passed through the second mounting hole, the third gasket 320 is located on the side of the connecting rod assembly 130 away from the wall 30 and abuts against the connecting rod assembly 130, and the fourth gasket 330 is located on the side of the wall 30 away from the connecting rod assembly 130 and abuts against the wall 30.

[0067] The second mounting hole is a threaded hole, and the position of the second mounting hole should be set strictly in accordance with the detailed plan layout of the attached lifting scaffold 20. The reserved second mounting hole should be kept horizontal to avoid warping.

[0068] The size of the connection device 10 should be designed according to the actual concave spacing of the facade of the engineering structure.

[0069] Please refer to Figure 1 and Figure 3 The length of the first side rod 103 matches the net distance between the guide rail support 21 and the wall 30, the first bottom rod 101 matches the height of the guide rail support 21, and the length of the first connecting rod 131 and the length of the second connecting rod 132 match the width of the guide rail support 21.

[0070] Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 Based on the above content, the construction principle of the scaffolding system is further described in this embodiment as follows:

[0071] S100. The connecting member 100 is placed between the attached lifting scaffold 20 and the wall 30;

[0072] S200. Pass the first screw rod 210 through the first mounting hole, place the first gasket 220 on the side of the connecting rod assembly 130 away from the guide rail support 21 and lock it with the first nut 240, place the second gasket 230 on the side of the guide rail support 21 away from the connecting rod assembly 130 and lock it with the second nut 250.

[0073] S300. Pass the second screw rod 310 through the second mounting hole, place the third gasket 320 on the side of the connecting rod assembly 130 away from the guide rail support 21 and lock it with the third nut 340, place the fourth gasket 330 on the side of the guide rail support 21 away from the connecting rod assembly 130 and lock it with the fourth nut 350.

[0074] In this embodiment, special attention should be paid to the welding quality between the components. Before welding, the welder must remove impurities such as rust, oil, moisture, scale, paint, etc. in the weld area and within 30 mm on both sides thereof, and inspect the shape, position, misalignment, angular deformation, gap, etc. of the rear component; during the welding process, the welding process parameters should be strictly controlled: current, voltage, welding speed, preheating temperature, interlayer temperature, and post-heating temperature and time; after welding, the appearance quality and external dimensions of the weld should be inspected, and non-destructive testing should be performed.

[0075] In the construction of residential buildings, the use of this embodiment greatly simplifies the wall connection form of the attached lifting scaffolding 20 at the place where the structure is too recessed. The weight of the connecting device 10 is controlled within 25KG, which can meet the needs of single-person operation and facilitate on-site construction. Compared with other complex structures, the wall attachment construction time of this embodiment at the recessed part of the structure is shortened by more than half, saving labor costs.

[0076] At the same time, the use of this embodiment strengthens the stability of the wall-attached connection support, increases the contact area of ​​the wall 30, and reduces the requirements for the concrete strength of the structural wall 30, especially for the concrete wall 30 constructed in winter, avoiding the damage of the wall 30 due to stress concentration, and further improving the overall safety and reliability of the scaffolding system.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0078] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A connecting device for connecting an attached lifting scaffold and a wall. It is characterized in that The connecting device includes a connecting piece, a first fastener and a second fastener. The connecting piece includes a first frame, a second frame and multiple groups of connecting rod assemblies. The first frame and the second frame are fixedly connected by multiple groups of the connecting rod assemblies. Each group of the connecting rod assemblies is provided with a mounting position. The first fastener is passed through one of the mounting positions and fixedly connected to the attached lifting scaffold. The second fastener is passed through one of the mounting positions and fixedly connected to the wall.

2. The connection device according to claim 1, It is characterized in that Each group of the connecting rod assemblies includes a first connecting rod and a second connecting rod, the first connecting rod is connected to the first frame and the second frame respectively, the mounting position is provided between the second connecting rod and the first connecting rod, and the second connecting rod is connected to the first frame and the second frame respectively.

3. The connection device according to claim 2, It is characterized in that The first connecting rod is provided with a first midpoint, the second connecting rod is provided with a second midpoint, the second midpoint and the first midpoint are connected to form a straight line, and the first fastener and the second fastener are both located on the straight line.

4. The connection device according to any one of claims 1 to 3, It is characterized in that The first frame and the second frame both include a trapezoidal body and an oblique rod. The trapezoidal body is provided with a first bottom rod and a second bottom rod. The oblique rods respectively connect the first bottom rod and the second bottom rod and separate the trapezoidal body into two triangular structures.

5. The connection device according to claim 4, It is characterized in that The length of the first bottom bar is defined as d, and the length of the second bottom bar is defined as D, satisfying: 1.5d≤D≤2d.

6. The connection device according to claim 5, It is characterized in that The included angle between the oblique rod and the first bottom rod is defined as α, which satisfies: 45°≤α≤60°.

7. The connection device according to any one of claims 1 to 3, It is characterized in that The first fastener includes a first screw and a first washer, a second washer, a first nut and a second nut located on the first screw, the first washer is located on a side of the connecting rod assembly away from the second washer, the first nut is located on a side of the first washer away from the second washer, and the second nut is located on a side of the second washer away from the first washer.

8. The connection device according to any one of claims 1 to 3, It is characterized in that The second fastener includes a second screw and a third washer, a fourth washer, a third nut and a fourth nut located on the second screw, the third washer is located on a side of the connecting rod assembly away from the fourth washer, the third nut is located on a side of the third washer away from the fourth washer, and the fourth nut is located on a side of the fourth washer away from the third washer.

9. A scaffolding system, It is characterized in that It comprises an attached lifting scaffold, a wall and a connecting device as described in any one of claims 1 to 8, wherein the connecting device is connected to the attached lifting scaffold and the wall respectively.

10. The scaffolding system according to claim 9, It is characterized in that The attached lifting scaffold is provided with a first mounting hole, the first fastener is passed through the first mounting hole, the wall is provided with a second mounting hole, and the second fastener is passed through the second mounting hole.

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