Combined type wall connecting piece for overhanging type scaffold

Abstract

The utility model discloses a combined type wall connecting piece for an overhanging type scaffold, which comprises a through-wall bolt penetrating through a building outer wall through a preset hole; the gasket is sleeved on the threaded section of the through-wall bolt; the first nut is screwed to the threaded section of the inner side end of the wall-penetrating bolt. The angle adjusting assembly comprises a baffle limiting plate and an adjusting rod; one end of the adjusting rod is hinged with a connecting steel pipe, and the other end is provided with a limiting bolt; one end of the connecting steel pipe is hinged to the baffle, and the middle section of the pipe body is movably connected with the adjusting rod; and the scaffold steel pipe is connected with the extending end of the connecting steel pipe through a fastener. The wall connecting piece solves the problems that a traditional wall connecting piece is limited in angle adjustment, complex in installation, poor in stability, insufficient in adaptability and the like, can be rapidly installed through cooperation of the wall penetrating screw and the nut, is clamped on the two sides of a wall through cooperation of the gasket and the baffle, and is stable in connection. And multi-angle connection of scaffold steel pipes is achieved through the angle adjusting assembly, and the scaffold adapts to different construction scenes.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a combined wall tie for cantilevered scaffolding. Background Technology

[0002] During the construction process, scaffolding is generally used to build construction platforms for exterior wall work. The stability of cantilevered scaffolding directly affects construction efficiency and safety.

[0003] Currently, traditional cantilever scaffolding wall ties mostly use a fixed structure, directly connecting the scaffolding to the wall via rigid members. This connection method has many problems. Due to the rigid connection structure, angle adjustment is limited and cannot adapt to different scaffolding layouts or complex wall structures, requiring customization of various specifications, which is costly. Traditional wall ties are complex to install, requiring frequent drilling or welding on the wall, which not only damages the wall but is also inefficient. The installation stability of wall ties often fails to meet requirements, generally using a single fixed point pair, which is prone to loosening due to uneven stress, posing a high safety hazard. It is difficult to make corresponding adjustments when dealing with uneven walls or scaffolding shifts, resulting in poor adaptability. Considering these issues, although some adjustable wall tie designs have emerged in existing technologies, these wall ties often only allow for limited fine-tuning of the angle range and have complex connection structures, making quick installation and locking difficult. Therefore, there is an urgent need for a modular wall tie that is multi-angle adjustable, easy to install, and highly adaptable. Utility Model Content

[0004] This invention overcomes the problems of limited angle adjustment, complex installation, poor stability, and insufficient adaptability of traditional wall ties. It provides a modular wall tie for cantilevered scaffolding. Through the cooperation of through-wall bolts and nuts, the wall tie can be quickly fixed to the pre-set installation hole position on the exterior wall. Furthermore, the use of washers and baffles clamps it to both sides of the wall, ensuring a stable connection. Through the sliding engagement of the groove and the limiting bolt, combined with the hinged structure, multi-angle adjustment of the connecting steel pipe is achieved, allowing the connecting steel pipe and the scaffold steel pipe to quickly reach the mating position and be fixed together. This enables multi-angle connection of scaffold steel pipes, adapting to different construction scenarios and reducing the cost of customized requirements.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] Modular wall ties for cantilevered scaffolding include:

[0007] Through-wall bolts penetrate the exterior wall of a building through pre-drilled holes, and the inner end of the through-wall bolts is provided with a threaded section;

[0008] The washer is fitted onto the threaded section of the through-wall bolt;

[0009] The first nut is screwed onto the threaded section on the inner end of the through-wall bolt, and tightening it causes the washer to press against the interior wall surface of the building.

[0010] An angle adjustment assembly includes a baffle fixedly connected to the outer end of a through-wall bolt and installed close to the exterior wall of the building, a limiting plate perpendicular to the baffle, and an adjustment rod; the limiting plate is provided with an elongated groove parallel to the wall; one end of the adjustment rod is hinged to a connecting steel pipe through a first hinge shaft, and the other end is provided with a limiting bolt that can slide along the groove, and the limiting bolt is locked by a second nut;

[0011] One end of the connecting steel pipe is hinged to the baffle, and the middle section of the pipe body is movably connected to the adjusting rod through the first hinge shaft;

[0012] Scaffolding steel pipes, which are detachably and fixedly connected to the extension end of the connecting steel pipe by fasteners;

[0013] The adjusting rod is adjusted by sliding within the groove using a limiting bolt, thereby driving the connecting steel pipe to form a multi-angle connection structure.

[0014] Preferably, the gasket has a double-layer structure, including an elastic layer that contacts the wall and a rigid layer that contacts the first nut.

[0015] Preferably, the wall also includes a sleeve pre-installed in the exterior wall, through which the through-wall bolt passes to penetrate the wall.

[0016] Preferably, the connecting steel pipe adopts a structure of splicing multiple steel pipe units, with an external thread at one end of each steel pipe unit and an internal thread at the other end that meshes with the external thread.

[0017] Preferably, the elongated groove has multiple notches evenly provided on both sides for locking the limiting bolts.

[0018] Preferably, the first hinge shaft between the connecting steel pipe and the adjusting rod is provided with a locking structure. The first hinge shaft includes a bushing and a shaft. The locking structure includes a screw hole provided on the bushing and a screw that fits in the screw hole. When the screw is screwed into the screw hole, it abuts against the shaft to prevent relative rotation between the bushing and the shaft.

[0019] Preferably, the baffle is provided with several through holes and is fixed to the outer wall with expansion screws.

[0020] This utility model has at least the following beneficial effects: (1) By adjusting the sliding fit and hinge design of the groove, the scaffolding steel pipe can be connected at multiple angles, adapting to changes in scaffolding layout, improving installation flexibility, adapting to different construction scenarios, and reducing the cost of customized requirements; (2) By using the fit of the through-wall bolt and nut, the wall tie can be quickly fixed at the preset installation hole position on the exterior wall, and the fit of the gasket and baffle can be used to clamp it on both sides of the wall, making the connection stable; (3) By pre-embedding the sleeve in the wall, the through-wall bolt passes directly through the sleeve. The installation holes reserved on the wall do not need to leave space, which reduces the damage to the wall during installation and makes the through bolts pass through the wall more smoothly, thus improving construction efficiency; (4) By designing the connecting steel pipe with the modular structure, the extension length can be flexibly adjusted to adapt to scaffolding steel pipes of different distances; (5) By setting multiple notches on both sides of the slide, the limit bolt is locked by the second nut after being inserted into the notch, providing a fixed node, and a locking structure is set at the first hinge shaft to prevent the adjustment rod from shifting or changing angle due to construction vibration, thus enhancing stability. Attached Figure Description

[0021] Figure 1 A structural side view of a combined wall tie for cantilevered scaffolding provided by this utility model;

[0022] Figure 2 A top view of a combined wall tie for cantilevered scaffolding provided by this utility model;

[0023] Figure 3 This is a schematic diagram of a connection method between a baffle and a limiting plate according to this utility model;

[0024] Figure 4 This is a schematic diagram of a locking structure according to the present invention;

[0025] Figure 5 This is a schematic diagram of a steel pipe unit structure according to the present invention.

[0026] In the diagram: 1. Through-wall bolt, 2. Washer, 3. First nut, 4. Baffle, 5. Limiting plate, 6. Adjusting rod, 7. First hinge shaft, 8. Connecting steel pipe, 9. Limiting bolt, 10. Second nut, 11. Scaffolding steel pipe, 12. Fastener, 13. Sleeve, 14. Bushing, 15. Shaft, 16. Screw. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0028] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the materials described are commercially available unless otherwise specified. In the description of this utility model, it should be noted that, unless otherwise explicitly stated and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] like Figure 1 and Figure 2 As shown, the combined wall tie for cantilevered scaffolding provided by this utility model includes:

[0031] The through-wall bolt 1 penetrates the exterior wall of the building through a pre-drilled hole. The inner end of the through-wall bolt 1 is provided with a threaded section. The threaded section at the inner end of the through-wall bolt 1 is relatively long, ensuring that there is a thread at the opening position of the pre-drilled hole in the wall, so that the first nut 3 can be fully tightened.

[0032] Washer 2 is fitted onto the threaded section of through bolt 1; Washer 2 can be made of round steel sheet, with an overall rigid structure, increasing the contact surface with the wall and providing sufficient force for the stable installation of through bolt 1.

[0033] The first nut 3 is screwed onto the threaded section of the inner end of the through-wall bolt 1, and the washer 2 is pressed against the inner wall surface of the building by tightening it;

[0034] An angle adjustment assembly includes a baffle 4 fixedly connected to the outer end of the through-wall bolt 1 and closely attached to the exterior wall surface, a limiting plate 5 perpendicular to the baffle 4, and an adjusting rod 6. The limiting plate 5 has a long, narrow groove parallel to the wall surface. One end of the adjusting rod 6 is hinged to a connecting steel pipe 8 via a first hinge shaft 7, and the other end has a limiting bolt 9 that can slide along the groove. The limiting bolt 9 is locked by a second nut 10. The baffle 4 is welded to the outer end of the through-wall bolt 1 and can be a circular steel plate. The limiting plate 5 is a horizontal rectangular steel plate, welded to the upper middle part of the outer side of the baffle 4. The adjusting rod 6 is made of rigid material and is fixedly connected to the limiting bolt 9. The limiting bolt 9 is vertically inserted into the long, narrow groove on the limiting plate 5. When the limiting bolt 9 slides to the appropriate position, the position is locked by tightening the second nut 10. The second nuts 10 can be set in pairs, clamping the upper and lower sides of the limiting plate 5 respectively when tightened. Unscrewing either nut releases the lock.

[0035] One end of the connecting steel pipe 8 is hinged to the baffle 4, and the middle section of the pipe body is movably connected to the adjusting rod 6 through the first hinge shaft 7. The connecting steel pipe 8 is divided into a fixed end and an extension end. A hinge point is provided between the fixed end and the baffle 4. There is a small distance between the hinge point and the baffle 4 to provide more flexible rotation and adjustment angle. The rotation direction of the connecting steel pipe 8 around the hinge point is on the horizontal plane.

[0036] The scaffolding steel pipe 11 is detachably and fixedly connected to the extension end of the connecting steel pipe 8 by means of a coupler 12. Since the connecting steel pipe 8 can be the same size as the scaffolding steel pipe 11, the coupler 12 used can be a common scaffolding connecting coupler, or a quick-release connecting coupler that is easier to assemble and disassemble can be used.

[0037] The adjusting rod 6 is adjusted by sliding the limiting bolt 9 in the groove, which drives the connecting steel pipe 8 to form a multi-angle connection structure. When the limiting bolt 9 is in different positions in the groove, the connecting steel pipe 8 will have different degrees of angular displacement because the length of the adjusting rod 6 remains unchanged. In actual use, after adjusting the angle of the connecting steel pipe 8 to make it close to the scaffold steel pipe 11, the limiting bolt 9 will slide to the appropriate position.

[0038] When using this wall tie, after passing the through-wall bolt 1 through the pre-drilled hole in the wall from the outside, put the washer 2 on the through-wall bolt 1 and push it to fit against the wall. Then, tighten the first nut 3 to complete the fixing of the wall tie to the wall. Adjust the angle of the connecting steel pipe 8 to reach the position for connection with the scaffolding steel pipe 11 and use the fastener 12 for fixing. At this time, the limit bolt 9 reaches the appropriate position in the groove. Tighten the second nut 10 to secure it. This completes the connection between the wall tie and the scaffolding. The final effect is that the scaffolding is stably connected to the wall through the wall tie, ensuring the safety of the exterior wall construction.

[0039] This wall tie, through the sliding engagement of the adjusting rod 6 and the sliding groove, as well as its hinged design, enables multi-angle connection of the scaffolding steel pipe 11. This adapts to changes in scaffolding layout, improves installation flexibility, accommodates different construction scenarios, and reduces the cost of customized requirements. The wall tie can be quickly fixed to the pre-set mounting hole position on the exterior wall using the through-wall bolt 1 and nut 3, and is clamped to both sides of the wall using the washers 2 and baffles 4, ensuring a stable and reliable connection.

[0040] In another technical solution, such as Figure 1 As shown, the gasket 2 adopts a double-layer structure, including an elastic layer in contact with the wall and a rigid layer in contact with the first nut 3. The elastic layer can be made of materials such as rubber, adhering tightly to the wall to provide vibration cushioning; the rigid layer is made of metal such as stainless steel, contacting the first nut 3 to evenly distribute pressure. The elastic and rigid layers can be separate structures or integrated into a single structure through methods such as bonding. The double-layer structure can prevent wall damage from pressure, enhance sealing performance and long-term pressure resistance.

[0041] The wall tie also includes a sleeve 13 pre-installed in the exterior wall, through which the through-wall bolt 1 passes to penetrate the wall. The sleeve 13 is pre-embedded during wall pouring or inserted after drilling, and the through-wall bolt 1 passes directly through the sleeve 13, reducing the damage to the wall caused by drilling during installation and improving construction efficiency.

[0042] like Figure 3 As shown, the baffle 4 is provided with several through holes and is fixed to the outer wall with expansion screws. In complex environments where higher connection strength is required, the baffle 4 can be fixed to the outer wall with expansion screws to enhance the connection strength between the baffle 4 and the wall and share the force of the through bolt 1.

[0043] In another technical solution, the connecting steel pipe 8 adopts a structure of splicing multiple steel pipe units, such as... Figure 5 As shown, each steel pipe unit has an external thread at one end and an internal thread at the other end that meshes with the external thread. For multi-segment steel pipe units, only the end of the first steel pipe unit is hinged to the baffle 4 and the pipe body is hinged to the adjusting rod 6; the remaining steel pipe units only provide an extension function. The length of the steel pipe can be adjusted according to the scaffolding distance, reducing material waste.

[0044] In another technical solution, such as Figure 2 As shown, multiple notches for locking the limiting bolts 9 are evenly distributed on both sides of the elongated groove. With multiple notches on both sides of the groove, the limiting bolts 9 are locked in place by the second nut 10 after being inserted into the notches, providing a fixed point to prevent the adjusting rod 6 from shifting due to construction vibrations and enhancing stability.

[0045] like Figure 4As shown, the first hinge shaft 7 between the connecting steel pipe 8 and the adjusting rod 6 is equipped with a locking structure. The first hinge shaft 7 includes a bushing 14 and a shaft 15. The locking structure includes a threaded hole on the bushing 14 and a screw 16 that fits into the threaded hole. When the screw 16 is screwed into the threaded hole, it abuts against the shaft 15 to prevent relative rotation between the bushing 14 and the shaft 15. To achieve relative rotation, the bushing 14 is fixedly connected to the adjusting rod 6, and the shaft 15 is fixedly connected to the connecting steel pipe 8; the reverse is also possible. This locking structure can lock the hinge angle, prevent the connecting steel pipe 8 from rotating accidentally, and ensure structural stability.

[0046] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0047] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A modular wall tie for cantilevered scaffolding, characterized in that, include: Through-wall bolts penetrate the exterior wall of a building through pre-drilled holes, and the inner end of the through-wall bolts is provided with a threaded section; The washer is fitted onto the threaded section of the through-wall bolt; The first nut is screwed onto the threaded section on the inner end of the through-wall bolt, and tightening it causes the washer to press against the interior wall surface of the building. An angle adjustment assembly includes a baffle fixedly connected to the outer end of a through-wall bolt and installed close to the exterior wall of the building, a limiting plate perpendicular to the baffle, and an adjustment rod; the limiting plate is provided with an elongated groove parallel to the wall; one end of the adjustment rod is hinged to a connecting steel pipe through a first hinge shaft, and the other end is provided with a limiting bolt that can slide along the groove, and the limiting bolt is locked by a second nut; One end of the connecting steel pipe is hinged to the baffle, and the middle section of the pipe body is movably connected to the adjusting rod through the first hinge shaft; Scaffolding steel pipes, which are detachably and fixedly connected to the extension end of the connecting steel pipe by fasteners; The adjusting rod is adjusted by sliding within the groove using a limiting bolt, thereby driving the connecting steel pipe to form a multi-angle connection structure.

2. The combined wall tie for cantilevered scaffolding according to claim 1, characterized in that, The gasket has a double-layer structure, including an elastic layer that contacts the wall and a rigid layer that contacts the first nut.

3. The combined wall tie for cantilevered scaffolding according to claim 1, characterized in that, It also includes a sleeve pre-installed in the exterior wall, through which the through-wall bolt passes to penetrate the wall.

4. The combined wall tie for cantilevered scaffolding according to claim 1, characterized in that, The connecting steel pipe adopts a structure of splicing multiple steel pipe units. Each steel pipe unit has an external thread at one end and an internal thread that meshes with the external thread at the other end.

5. The combined wall tie for cantilevered scaffolding according to claim 1, characterized in that, The elongated groove has multiple notches evenly distributed on both sides to lock the limiting bolts.

6. The combined wall tie for cantilevered scaffolding according to claim 1, characterized in that, The first hinge shaft between the connecting steel pipe and the adjusting rod is provided with a locking structure. The first hinge shaft includes a bushing and a shaft. The locking structure includes a screw hole provided on the bushing and a screw that fits in the screw hole. When the screw is screwed into the screw hole, it abuts against the shaft to prevent relative rotation between the bushing and the shaft.

7. The combined wall tie for cantilevered scaffolding according to claim 1, characterized in that, The baffle is provided with several through holes and is fixed to the outer wall with expansion screws.

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