A wall tie for building scaffolding that does not require dismantling

Abstract

This invention discloses a wall tie for non-removable external scaffolding, relating to the field of building technology. The wall tie includes a wall-connecting plate in a herringbone shape. A fixing block is fixedly connected to the left side of the wall-connecting plate. Two symmetrical support frames are arranged on the side of the fixing block away from the wall-connecting plate. The two support frames have identical structures and are U-shaped. This wall tie for non-removable external scaffolding avoids safety hazards through installation and does not hinder subsequent construction processes. It effectively prevents workers from removing the wall tie during later wall construction and kitchen / bathroom waterproofing, ensuring a sufficient number and reasonable distribution of wall ties. It also eliminates the common quality problem of sealing wall openings. Traditional wall tie structures require pre-reserved openings during wall construction, leading to high costs and poor results in sealing these openings later, and even causing wall leakage.

Description

Technical Field

[0001] This invention relates to the field of building technology, and in particular to a wall tie for external scaffolding that does not require dismantling. Background Technology

[0002] In recent years, safety accidents involving steel pipe scaffolding have occurred frequently. One of the main reasons for these accidents is the improper installation and arbitrary removal of wall ties. The "Safety Technical Specification for Coupler-type Steel Pipe Scaffolding in Building Construction" (JGJ130—2011) and the "Safety Technical Regulations for Cantilevered Steel Pipe Scaffolding in Building Construction" (DGJ32 / J121—2011) have made detailed provisions for wall ties. Generally, vertical steel pipes are first pre-embedded in the main structure, and wall ties are used to connect the pre-embedded vertical pipes to the scaffolding to complete the rigid connection between the scaffolding and the main structure.

[0003] Currently, existing embedded parts generally use steel pipe wall ties. When using these wall ties, they can only be embedded up to the window opening or the position of the upturned beam. After embedding at the internal and external corners of the building, there is a 48mm hole, which needs to be sealed and waterproofed in the external wall later. Compared with concrete components, the sealing of the hole is not very dense and the waterproofing effect is not obvious, which can easily lead to water seepage. Secondly, the steel pipe material cannot be removed after embedding, so it can only be partitioned, resulting in waste of finished steel pipe material and making it impossible to reuse.

[0004] In summary, while traditional connection methods play a crucial role in ensuring the safe use of scaffolding, they also present several problems: ① Insufficient number of wall ties, or removal of wall ties during later construction of walls and kitchen / bathroom waterproofing platforms, with no timely restoration; ② The placement of wall ties is highly arbitrary, making it difficult to install them at shear walls and columns, resulting in a lack of ties in certain areas; ③ Openings must be reserved during wall construction, and the subsequent sealing of these openings is costly, ineffective, and may even cause wall leaks; ④ Some methods only use flexible wall ties; ⑤ Post-construction treatment of embedded corners in buildings is cumbersome and cannot guarantee a high quality pass rate; ⑥ Significant waste of finished materials, which cannot be reused. Summary of the Invention

[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a wall tie that does not require dismantling of external scaffolding of buildings, which can solve the problem of insufficient number of wall ties or the removal of wall ties during later construction of walls and water-stop platforms in kitchens and bathrooms, and the inability to restore them in a timely manner.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wall tie for a non-removable building scaffold, comprising a wall tie plate, the wall tie plate being herringbone shaped, a fixing block being fixedly connected to the left side of the wall tie plate, two symmetrical support frames being provided on the side of the fixing block away from the wall tie plate, the two support frames having the same structure, the support frames being U-shaped, a positioning plate being slidably connected inside the support frame, a second positioning groove being provided on the side of the positioning plate near the fixing block, a first positioning groove being provided on the side of the fixing block near the positioning plate, both the first and second positioning grooves having arc-shaped cross sections, a second threaded rod being rotatably connected to the side of the positioning plate away from the fixing block, the second threaded rod being threaded through the interior of the support frame and extending to the exterior of the support frame on the side away from the positioning plate, a power groove extending to the exterior of the fixing block being provided inside the fixing block, and an installation adjustment device being provided inside the power groove;

[0007] The installation and adjustment device includes a power frame, the surface of which is slidably connected to the inside of the power groove. There are two power frames, which are symmetrically arranged inside the power groove. The two power frames correspond one-to-one with two support frames. A movable groove communicating with the inside of the power groove is opened on the side of the fixed block near the support frame. An installation rod that is fixedly connected to the surface of the support frame is slidably connected inside the movable groove. An installation groove that is slidably connected to the surface of the installation rod is opened on the side of the power frame near the movable groove. A fixed groove is opened at the bottom of the installation rod. A transmission groove communicating with the inside of the installation groove is opened inside the power frame. A fixed rod that extends into the fixed groove is slidably connected inside the transmission groove.

[0008] The power frame has a rotating groove inside that communicates with the inside of the transmission groove. A gear is rotatably connected inside the rotating groove. The surface of the fixed rod is provided with teeth. The fixed rod is connected to the surface of the gear through the meshing of the teeth. The power frame also has a pull groove inside that communicates with the inside of the rotating groove. A pull rod extending to the outside of the power frame is slidably connected inside the pull groove. The surface of the pull rod is provided with teeth. The pull rod is connected to the surface of the gear through the meshing of the teeth.

[0009] Preferably, the top and bottom of the support frame are provided with sliding grooves, and the sliding grooves are slidably connected to sliders that are fixedly connected to the surface of the positioning plate.

[0010] Preferably, the inner walls of both the first positioning groove and the second positioning groove are fixedly connected with rubber layers.

[0011] Preferably, both the power frame and the power slot have a T-shaped cross-section.

[0012] Preferably, a spring is fixedly connected to the bottom of the fixing rod, and the end of the spring away from the fixing rod is fixedly connected to the inner wall of the transmission groove.

[0013] Preferably, the inner wall of the power groove is rotatably connected to a first threaded rod, the surface of the first threaded rod is connected to the internal thread of the power frame, and the surface of the first threaded rod is provided with two opposite threads starting from its center. The two power frames are respectively set on the two opposite threads on the surface of the first threaded rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The wall tie of the building external scaffold that does not need to be dismantled can avoid safety hazards through the installation of the device and does not hinder the subsequent construction process. It can effectively prevent workers from dismantling the wall tie during the later construction of the wall and the water-stop platform in the kitchen and bathroom, ensuring the overall number of wall ties of the scaffold and reasonable distribution. At the same time, it eliminates the common quality problem of sealing the wall opening. The traditional wall tie structure requires the reservation of openings when building the wall, which reduces the cost of sealing the wall opening later, the effect is not good, and it may even cause the wall to leak.

[0016] (2) The wall tie of the non-removable building external scaffolding is not restricted by the pre-embedded position of the wall tie plate. It can be set at the horizontal construction joint of shear wall and column, which fully ensures that the wall tie is distributed reasonably according to the specifications. The installation cost is low. After the wall tie plate is bent, it is close to the external wall surface, and the external wall construction and other subsequent operations can be carried out directly. The wall tie fastener and steel pipe can be reused. Compared with the vertical steel pipe pre-embedded in the traditional wall tie, the wall tie plate does not increase the cost.

[0017] (3) The wall tie of the non-removable building external scaffolding moves the positioning plate closer to the steel pipe through the second threaded rod, thereby fixing the steel pipe and making it easier for workers to fix the steel pipe. At the same time, the positioning plates on the two support frames fix the steel pipe simultaneously, making the fixing of the steel pipe more stable and firm, thereby making the external scaffolding more firmly fixed and allowing workers to use the device more smoothly.

[0018] (4) The wall tie of the non-removable building external scaffolding can be released by the fixed rod sliding out of the fixed groove, so that the fixed rod can be released. This makes it easier for workers to disassemble and install the support frame, and makes it easier for workers to repair the support frame when it malfunctions or is damaged. It also makes the later maintenance of the support frame more convenient and allows workers to use the device more smoothly.

[0019] (5) The wall tie of the non-removable building scaffold can increase the friction between the first positioning groove, the second positioning groove and the steel pipe through the rubber layer. At the same time, through the deformation of the rubber layer, the first positioning groove and the second positioning groove can fit more closely to the surface of the steel pipe, so that the positioning and fixing of the steel pipe is more stable and firm, and the workers can use the device more conveniently.

[0020] (6) The wall tie for the non-removable building scaffolding is made so that the first threaded rod is rotated by the worker, and the first threaded rod is matched with the two opposite threads on the surface and the T-shaped cross-section of the power frame and the power groove.

[0021] The first threaded rod can drive the two power frames to move relative to each other, and the power frames can drive the two support frames to move relative to each other, thereby adjusting the distance between the two support frames. This allows the device to position and fix steel pipes of different lengths, making the external scaffolding more stable and secure, and expanding the device's applicability, making it more convenient for workers to use. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is a schematic diagram of the structure of the wall-connecting plate of the present invention;

[0024] Figure 2 This is a schematic diagram of the left view of the positioning plate of the present invention;

[0025] Figure 3 This is a cross-sectional view of the fixing block of the present invention;

[0026] Figure 4 This is a front view schematic diagram of the power frame of the present invention;

[0027] Figure 5 This is a schematic diagram of the power frame of the present invention from the left side.

[0028] Figure 6 This is a schematic diagram of the left view of the first threaded rod of the present invention.

[0029] Reference numerals: 1. Wall tie plate; 2. Fixing block; 3. First threaded rod; 4. First positioning groove; 5. Rubber layer; 6. Second positioning groove; 7. Positioning plate; 8. Support frame; 9. Second threaded rod; 10. Moving groove; 11. Sliding groove; 12. Sliding block; 13. Power groove; 14. Power frame; 15. Pull rod; 16. Pull groove; 17. Spring; 18. Fixing rod; 19. Transmission groove; 20. Fixing groove; 21. Mounting rod; 22. Mounting groove; 23. Gear; 24. Rotating groove. Detailed Implementation

[0030] Please see Figure 1-3This invention provides a technical solution: a wall tie for a non-removable external scaffold, comprising a wall tie plate 1, which is herringbone shaped. The wall tie plate 1 can be fixed by bolts passing through the interior of the horizontal plate of the wall tie plate 1. A fixing block 2 is fixedly connected to the left side of the wall tie plate 1. Two symmetrical support frames 8 are provided on the side of the fixing block 2 away from the wall tie plate 1. The two support frames 8 have the same structure and are U-shaped. A positioning plate 7 is slidably connected inside the support frame 8. A second positioning groove 6 is opened on the side of the positioning plate 7 near the fixing block 2. A first positioning groove 4 is opened on the side of the fixing block 2 near the positioning plate 7. The cross-section of the first positioning groove 4 and the second positioning groove 6 are both arc-shaped. A second threaded rod 9 is rotatably connected to the side of the positioning plate 7 away from the fixing block 2. The second threaded rod 9 is threaded through the interior of the support frame 8 and extends to the exterior of the support frame 8 on the side away from the positioning plate 7. A power groove 13 extending to the exterior of the fixing block 2 is opened inside the fixing block 2. An installation and adjustment device is provided inside the power groove 13.

[0031] Furthermore, the top and bottom of the support frame 8 are provided with sliding grooves 11, and the sliding grooves 11 are slidably connected to the sliders 12 which are fixedly connected to the surface of the positioning plate 7. The movement position of the positioning plate 7 is restricted by the cooperation between the sliding grooves 11 and the sliders 12.

[0032] Furthermore, the inner walls of the first positioning groove 4 and the second positioning groove 6 are both fixedly connected with rubber layers 5. The rubber layers 5 can increase the friction between the first positioning groove 4, the second positioning groove 6 and the steel pipe. At the same time, the deformation of the rubber layers 5 can make the first positioning groove 4 and the second positioning groove 6 fit the surface of the steel pipe more closely, thereby making the positioning and fixing of the steel pipe more stable and firm, and making it easier for workers to use the device.

[0033] Workers place the steel pipe between the first positioning groove 4 and the second positioning groove 6, and rotate the second threaded rod 9. Through the threaded connection between the second threaded rod 9 and the support frame 8, the second threaded rod 9 drives the positioning plate 7 to move closer to the steel pipe, thereby achieving the positioning and fixing of the steel pipe. This makes it easier for workers to fix the steel pipe. At the same time, the positioning plates 7 on the two support frames 8 simultaneously fix the steel pipe, making the fixing of the steel pipe more stable and secure. This makes the external scaffolding more secure and allows workers to use the device more smoothly.

[0034] Please see Figure 4-6The installation and adjustment device includes a power frame 14, the surface of which is slidably connected to the interior of the power groove 13. There are two power frames 14, which are symmetrically arranged inside the power groove 13. The cross-section of both the power frame 14 and the power groove 13 is T-shaped. The fixed block 2 has a movable groove 10 that communicates with the interior of the power groove 13 on the side near the support frame 8. There are two movable grooves 10, which are symmetrically arranged on the upper and lower sides of the left side of the fixed block 2. The movable groove 10 is slidably connected to the installation rod 21 that is fixedly connected to the surface of the support frame 8. The power frame 14 has an installation groove 22 that is slidably connected to the surface of the installation rod 21 on the side near the movable groove 10. The bottom of the installation rod 21 has a fixed groove 20. The power frame 14 has a transmission groove 19 that communicates with the interior of the installation groove 22. The transmission groove 19 is slidably connected to a fixed rod 18 that extends into the fixed groove 20.

[0035] Furthermore, a spring 17 is fixedly connected to the bottom of the fixed rod 18. The end of the spring 17 away from the fixed rod 18 is fixedly connected to the inner wall of the transmission groove 19. The spring 17 can be reset and compressed by moving the fixed rod 18 up and down.

[0036] Furthermore, the power frame 14 has a rotating groove 24 that communicates with the inside of the transmission groove 19. A gear 23 is rotatably connected inside the rotating groove 24. The surface of the fixed rod 18 is provided with teeth. The fixed rod 18 is meshed with the surface of the gear 23 through the teeth. The power frame 14 has a pull groove 16 that communicates with the inside of the rotating groove 24. A pull rod 15 extending to the outside of the power frame 14 is slidably connected inside the pull groove 16. The surface of the pull rod 15 is provided with teeth. The pull rod 15 is meshed with the surface of the gear 23 through the teeth.

[0037] By having the operator pull the lever 15 upwards, the lever 15 engages with the gear 23, causing the gear 23 to rotate. The gear 23 then engages with the fixed rod 18, causing the fixed rod 18 to move downwards. The spring 17 is compressed, and the fixed rod 18 slides out of the fixing groove 20, thus releasing the mounting rod 21. This allows the operator to more easily disassemble and install the support frame 8, facilitates repairs in case of malfunction or damage, and makes subsequent maintenance of the support frame 8 more convenient. Finally, it allows the operator to use the device more smoothly.

[0038] Furthermore, the inner wall of the power groove 13 is rotatably connected to a first threaded rod 3, the surface of the first threaded rod 3 is connected to the internal thread of the power frame 14, and the surface of the first threaded rod 3 is provided with two opposite threads starting from its center. The two power frames 14 are respectively provided on the two opposite threads on the surface of the first threaded rod 3.

[0039] By having the operator rotate the first threaded rod 3, the first threaded rod 3, through the mutual engagement of its two opposing threads and the T-shaped cross-sections of the power frame 14 and the power groove 13, can drive the two power frames 14 to move relative to each other. This, in turn, allows the power frames 14 to move the two support frames 8 relative to each other, thereby adjusting the distance between the two support frames 8. This enables the device to position and fix steel pipes of different lengths, making the external scaffolding more stable and secure, expanding the device's applicability, and making it more convenient for operators to use.

[0040] The installation of this device can avoid safety hazards and does not hinder subsequent construction processes. It can effectively prevent workers from removing the wall ties during later wall construction and kitchen / bathroom water-stop platform construction, ensuring the overall number and reasonable distribution of wall ties on the scaffolding. At the same time, it eliminates the common quality problem of sealing wall openings. Traditional wall tie structures require pre-reserved openings during wall construction, which reduces the cost of sealing the wall openings later, resulting in poor effectiveness and even causing wall leakage.

[0041] Meanwhile, the device is highly operable and the pre-embedded position of the wall tie plate 1 is not restricted. It can be set at the horizontal construction joint of shear walls and columns, which fully ensures that the wall ties are distributed reasonably according to the specifications. Moreover, the device has low cost. After the wall tie plate 1 is bent, it fits tightly against the outer wall surface, and the outer wall construction and other subsequent operations can be carried out directly. The wall tie fasteners and steel pipes can be reused. Compared with the vertical steel pipes pre-embedded in traditional wall ties, the wall tie plate 1 does not increase the cost.

[0042] Working Principle: This wall tie for non-removable building scaffolding works by having the worker rotate the first threaded rod 3. This rotation, through the interlocking of two opposing threads on its surface and the T-shaped cross-sections of the power frame 14 and power groove 13, allows the first threaded rod 3 to drive the two power frames 14 to move relative to each other. The power frames 14 then drive the two support frames 8 to move relative to each other, thus adjusting the distance between the two support frames 8. The worker then places the steel pipe between the first positioning groove 4 and the second positioning groove 6 and rotates the second threaded rod 9. Through the threaded connection between the second threaded rod 9 and the support frame 8, the second threaded rod 9 moves the positioning plate 7 closer to the steel pipe. The movement of the rod 15 allows for positioning and fixing of the steel pipe, making it easier for workers to secure it. When the worker pulls the rod 15 upwards, the rod 15 meshes with the gear 23, causing the gear 23 to rotate. The gear 23 then meshes with the fixing rod 18, causing the fixing rod 18 to move downwards. The spring 17 is compressed, and the fixing rod 18 slides out of the fixing groove 20, thus releasing the fixing of the mounting rod 21. This allows workers to more easily disassemble and install the support frame 8, and facilitates repairs to the support frame 8 in case of malfunction or damage.

[0043] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A wall tie for external scaffolding that does not require dismantling, comprising a wall tie plate (1), characterized in that: The wall connecting piece (1) is in the shape of a herringbone. A fixing block (2) is fixedly connected to the left side of the wall connecting piece (1). Two symmetrical support frames (8) are provided on the side of the fixing block (2) away from the wall connecting piece (1). The two support frames (8) have the same structure. The support frame (8) is in the shape of a U. The positioning plate (7) is slidably connected inside the support frame (8). A second positioning groove (6) is opened on the side of the positioning plate (7) near the fixing block (2). A second positioning groove (6) is opened on the side of the fixing block (2) near the positioning plate (7). There is a first positioning groove (4), and the cross-sections of the first positioning groove (4) and the second positioning groove (6) are both arc-shaped. The positioning plate (7) is rotatably connected to the side away from the fixed block (2) with a second threaded rod (9). The side of the second threaded rod (9) away from the positioning plate (7) is threaded through the interior of the support frame (8) and extends to the exterior of the support frame (8). The interior of the fixed block (2) is provided with a power groove (13) extending to the exterior of the fixed block (2). The interior of the power groove (13) is provided with an installation adjustment device. The installation adjustment device includes a power frame (14), the surface of the power frame (14) is slidably connected to the inside of the power groove (13), there are two power frames (14), the two power frames (14) are symmetrically arranged inside the power groove (13), the two power frames (14) correspond one-to-one with two support frames (8), the fixed block (2) has a moving groove (10) that communicates with the inside of the power groove (13) on the side near the support frame (8), the moving groove (10) has a mounting rod (21) that is fixedly connected to the surface of the support frame (8) slidably connected inside, the power frame (14) has a mounting groove (22) that is slidably connected to the surface of the mounting rod (21) on the side near the moving groove (10), the mounting rod (21) has a fixed groove (20) at the bottom, the power frame (14) has a transmission groove (19) that communicates with the inside of the mounting groove (22), the transmission groove (19) has a fixed rod (18) that extends into the fixed groove (20) slidably connected inside; The power frame (14) has a rotating groove (24) that communicates with the inside of the transmission groove (19). A gear (23) is rotatably connected inside the rotating groove (24). The surface of the fixed rod (18) is provided with teeth. The fixed rod (18) is meshed with the surface of the gear (23) through the teeth. The power frame (14) has a pull groove (16) that communicates with the inside of the rotating groove (24). A pull rod (15) that extends to the outside of the power frame (14) is slidably connected inside the pull groove (16). The surface of the pull rod (15) is provided with teeth. The pull rod (15) is meshed with the surface of the gear (23) through the teeth.

2. The wall tie for non-removable external scaffolding of a building according to claim 1, characterized in that: The support frame (8) has grooves (11) at both the top and bottom, and a slider (12) that is fixedly connected to the surface of the positioning plate (7) is slidably connected inside the groove (11).

3. The wall tie for non-removable external scaffolding of a building according to claim 1, characterized in that: The inner walls of the first positioning groove (4) and the second positioning groove (6) are both fixedly connected with rubber layers (5).

4. The wall tie for non-removable external scaffolding of a building according to claim 1, characterized in that: Both the power frame (14) and the power slot (13) have T-shaped cross sections.

5. A wall tie for non-removable external scaffolding as described in claim 1, characterized in that: A spring (17) is fixedly connected to the bottom of the fixed rod (18), and the end of the spring (17) away from the fixed rod (18) is fixedly connected to the inner wall of the transmission groove (19).

6. A wall tie for non-removable external scaffolding as described in claim 1, characterized in that: The inner wall of the power groove (13) is rotatably connected to a first threaded rod (3). The surface of the first threaded rod (3) is connected to the internal thread of the power frame (14). The surface of the first threaded rod (3) is provided with two opposite threads starting from its center. The two power frames (14) are respectively set on the two opposite threads on the surface of the first threaded rod (3).

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