Scaffold wall connector and method of use

Abstract

This invention relates to the technical field of building construction, and in particular to a scaffolding wall tie and its usage method. The invention includes an embedded pipe and a connecting rod. One side of the embedded pipe is embedded in the wall, and the other side is connected to the connecting rod. An anti-detachment column is telescopically installed on the embedded side of the pipe, with the telescopic direction of the anti-detachment column perpendicular to the axis of the embedded pipe. The embedded pipe is hollow, and an airtight cavity is formed inside. A sealing plug is movably installed within the airtight cavity. A telescopic screw is installed in the rear-push cavity. One end of the telescopic screw is fixedly connected to the sealing plug within the airtight cavity, and the other end passes through a threaded hole on one side of the rear-push cavity and is fitted with a nut. The anti-detachment column improves the stability of the embedded pipe within the wall, and the telescopic screw and the sealing plug in the airtight cavity facilitate control of the extension and retraction of the anti-detachment column, further facilitating the installation and disassembly of the embedded pipe.

Description

Technical Field

[0001] This invention relates to the technical field of building construction, and in particular to a scaffolding wall tie and its usage method. Background Technology

[0002] Scaffolding refers to the framework erected around a building, primarily used for exterior wall construction, facade decoration, and reinforced concrete engineering. It serves as a working platform to ensure the smooth progress of each construction process. Wall ties are a crucial component of scaffolding, mainly used to connect the scaffold framework to the main building structure. Specifically, they are components that enhance the stability of other structures by connecting to reliable fixed ends (such as walls). Properly designed wall ties with high load-bearing capacity and compliant construction directly improve the calculated span and lateral stiffness of the calculation unit, playing a vital role in the overall stability of the scaffolding.

[0003] Currently, existing scaffolding wall ties mainly include two types. One involves pre-embedding a 50mm nominal diameter PVC pipe in the wall, inserting an extension bolt through the PVC pipe to fix it to one end of a wall tie, and then fixing the other end of the wall tie to the scaffold frame using fasteners. During dismantling, the extension bolts are removed, and the holes in the PVC pipe need to be sealed. The second type involves pre-embedding a steel pipe in the wall, allowing it to extend beyond its normal length, and using this extended steel pipe as a wall tie directly to the scaffold frame using fasteners. After dismantling the scaffold, the extended steel pipe needs to be cut, and the holes in the steel pipe need to be sealed.

[0004] However, in the aforementioned existing technologies, in order to ensure strength requirements, the main methods are to increase the diameter of the extended screws and steel pipes, as well as the pre-embedding depth. Increasing the diameter of the extended screws and steel pipes will lead to an increase in the hole diameter of the PVC pipes and steel pipes, making it difficult to ensure the sealing quality. In particular, when the second technology mentioned above is used, since some steel pipe components of the scaffolding will be left directly in the building, the reinforced steel pipes will not only increase the steel waste rate, but the reinforced steel pipes will also hinder the subsequent cutting work, affecting the dismantling efficiency and making it very inconvenient to use.

[0005] To address these technical problems, the present invention provides a scaffolding wall tie and its usage method. Summary of the Invention

[0006] To address the complexities of installing and dismantling wall ties, this invention provides a scaffolding wall tie and its usage method.

[0007] On the one hand, the scaffolding wall tie provided by the present invention adopts the following technical solution:

[0008] A scaffolding wall tie includes an embedded pipe and a connecting rod. One side of the embedded pipe is embedded in the wall, and the other side is connected to the connecting rod. An anti-detachment column is telescopically installed on the embedded side of the embedded pipe, and the telescopic direction of the anti-detachment column is perpendicular to the axis of the embedded pipe. The embedded pipe is a hollow structure with an airtight cavity inside. A sealing plug is movably installed in the airtight cavity, and the sealing plug isolates the airtight cavity into a front push cavity and a rear push cavity. The front push cavity is located on the side where the anti-detachment column is installed, and a threaded hole is opened on one side of the rear push cavity. A telescopic screw is installed in the rear push cavity, and the telescopic screw is connected to the threaded hole on one side of the rear push cavity through the thread. One end of the telescopic screw is fixedly connected to the sealing plug in the airtight cavity, and the other end passes through the threaded hole on one side of the rear push cavity and is provided with a nut.

[0009] By adopting the above technical solution, the stability of the embedded pipe in the wall is improved by using the anti-detachment column, and the extension and retraction of the anti-detachment column can be easily controlled by the telescopic screw and the sealing plug in the airtight cavity, which further facilitates the control of the installation and disassembly of the embedded pipe.

[0010] Preferably, the end of the pre-embedded pipe extending out of the wall is symmetrically fixed with two connecting ears, and the connecting rod is fixedly connected to the connecting ears by fastening bolts and fastening nuts. The end of the connecting rod near the pre-embedded pipe is close to the nut, and the end of the connecting rod away from the pre-embedded pipe is directly connected to the external connector.

[0011] By adopting the above technical solution, the connecting ear is used to connect the connecting rod and further connect to the external scaffolding, which facilitates disassembly and installation.

[0012] Preferably, the fastening bolts are provided in at least two sets.

[0013] By adopting the above technical solution, the fastening bolts are equipped with at least two sets to effectively prevent the connecting rod from rotating arbitrarily, thereby improving the stability of the installation.

[0014] Preferably, the pre-embedded pipe has a telescopic hole that penetrates one side of the front push cavity of the airtight cavity. The anti-detachment column passes through the telescopic hole and is in close contact with the telescopic hole. A limit protrusion is provided at one end of the anti-detachment column inside the front push cavity of the airtight cavity.

[0015] By adopting the above technical solution, the anti-detachment column is extended through the telescopic hole to achieve telescopic control and sealing of the anti-detachment column, and the limiting protrusion prevents the anti-detachment column from slipping and further improves the sealing performance.

[0016] Preferably, a protective sleeve is fixedly provided at the end of the threaded hole on one side of the rear push cavity, the screw cap is provided inside the protective sleeve, a protective cover is fitted on the protective sleeve, and the protective sleeve and the protective cover are detachably connected by threads.

[0017] By adopting the above technical solution, the protective sleeve and cover are used to protect the screw cap, and prevent accidental rotation of the screw cap from causing the anti-detachment column of the embedded pipe to retract and further cause the embedded pipe to fall off the wall.

[0018] Preferably, the protective cover is provided with an abutment block at the end away from the protective cylinder, and the abutment block is pressed and fixed to the end of the protective cylinder by a connecting rod.

[0019] By adopting the above technical solution, the abutment block is used to further protect the screw cap and prevent accidental contact.

[0020] Preferably, the front push chamber of the airtight cavity is filled with hydraulic fluid, and at least one anti-detachment column is provided and arranged around the central axis of the pre-embedded pipe.

[0021] By adopting the above technical solution, the hydraulic fluid is not easily compressed, thus achieving better control over the anti-detachment column.

[0022] On the other hand, the method of using a scaffolding wall tie provided by the present invention adopts the following technical solution:

[0023] A method for using a scaffold wall tie includes the following steps:

[0024] Step 1: Push the telescopic screw towards the bottom of the airtight cavity by screwing the screw cap, and use the sealing plug to compress the air in the airtight cavity, so that the anti-detachment column extends out of the pre-embedded pipe from the telescopic hole;

[0025] Step 2: Calculate the embedment length of the pipe in the wall and embed the pipe into the wall, ensuring that the end of the pipe with the connecting lug extends out of the wall.

[0026] Step 3: Tighten the protective cover to the outside of the protective sleeve to cover and protect the screw cap;

[0027] Step 4: Place the end of the connecting rod that is directly connected to the scaffold between the two connecting lugs, then tighten the bolts through the connecting lugs and the connecting rod, and use the tightening nuts to fix it, so as to achieve the connection and fixation between the scaffold and the wall.

[0028] Step 5: During the dismantling of the scaffolding, first loosen the fastening bolts and nuts to remove the connecting rod from between the two connecting lugs;

[0029] Step 6: Unscrew the protective cover installed on the protective sleeve, and use a tool to screw the cap on, causing the telescopic screw and sealing plug to be pulled out of the airtight cavity. At this time, the volume at the bottom of the airtight cavity increases and the air pressure decreases, causing the anti-detachment column to retract into the airtight cavity, making the section of the pre-embedded pipe embedded in the wall a smooth body, thus allowing it to be pulled out.

[0030] Preferably, in step two, during the pre-embedding process, a gap is reserved between the anti-detachment column and the outside of the wall, and a section of the pre-embedded pipe embedded in the wall can also penetrate the wall, with a limiting plate fixed at the end that protrudes.

[0031] Preferably, in step four, the connecting rod fixed between the two connecting ears ensures that its end abuts against the outer edge of the protective cover, thereby using the abutting block inside the protective cover to abut and limit the screw cap.

[0032] In summary, the present invention has the following beneficial technical effects:

[0033] 1. The anti-detachment column improves the stability of the embedded pipe within the wall, and the extension and retraction of the anti-detachment column are easily controlled by the telescopic screw and the sealing plug in the airtight cavity, further facilitating the installation and disassembly of the embedded pipe. The connecting lug is used to connect the connecting rod and further connect to the external scaffolding, facilitating disassembly and installation. At least two sets of fastening bolts are provided to effectively prevent the connecting rod from rotating arbitrarily, improving the stability of the installation.

[0034] 2. The anti-detachment column extends through the telescopic hole to achieve telescopic control and sealing. The limiting protrusion prevents the anti-detachment column from slipping and further improves the sealing. The protective sleeve and cover are used to protect the screw cap and prevent accidental operation of the screw cap, which would cause the anti-detachment column of the embedded pipe to retract and further cause the embedded pipe to fall off the wall. The abutment block is used to further protect the screw cap to prevent accidental contact. The hydraulic fluid is not easily compressed, which better achieves control of the anti-detachment column.

[0035] 3. Compared to traditional embedded pipes, this invention strengthens the connection between the embedded pipe and the wall by extending an anti-detachment column when embedding the pipe in the wall, thus greatly improving the connection reinforcement effect. The anti-detachment column can be extended and retracted at the end of the embedded pipe, so that after the scaffolding is removed, the anti-detachment column can be directly retracted into the embedded pipe, making it easy to pull the smooth embedded pipe out of the wall without cutting or other operations. This not only reduces the amount of steel components embedded in the wall, saving resources, but also effectively improves demolition efficiency and is convenient to use. Attached Figure Description

[0036] Figure 1 This is a schematic diagram illustrating the fixing of the scaffold wall tie to the wall in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the internal structure of the scaffolding wall tie of the present invention;

[0038] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A;

[0039] Figure 4This is a structural schematic diagram of the scaffolding wall tie of the present invention;

[0040] Figure 5 This is a schematic diagram of the unfolded scaffolding wall tie of the present invention;

[0041] Figure 6 This is a schematic diagram of another embodiment of the present invention.

[0042] Explanation of reference numerals in the attached drawings: 01, wall; 1, embedded pipe; 101, airtight cavity; 102, expansion hole; 103, protective sleeve; 2, anti-detachment column; 3, connecting ear; 301, fastening bolt; 302, fastening nut; 4, connecting rod; 5, telescopic screw shaft; 501, sealing plug; 502, nut; 6, protective cover; 601, abutment block. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0044] Example 1:

[0045] This invention discloses a scaffolding wall tie, referring to... Figure 1 and 2 The device includes a pre-embedded pipe 1 and a connecting rod 4. One side of the pre-embedded pipe 1 is embedded in the wall, and the other side of the pre-embedded pipe 1 is connected to the connecting rod 4. An anti-detachment column 2 is telescopically installed on the side of the pre-embedded pipe 1 embedded in the wall. The telescopic direction of the anti-detachment column 2 is perpendicular to the axis of the pre-embedded pipe 1. The pre-embedded pipe 1 has a hollow structure and an airtight cavity 101 is opened inside the pre-embedded pipe 1. A sealing plug 501 is movably installed in the airtight cavity 101. The sealing plug 501 isolates the airtight cavity 101 into a front push cavity and a rear push cavity. The front push cavity is located on the side where the anti-detachment column 2 is installed. A threaded hole is opened on one side of the rear push cavity. A telescopic screw shaft 5 is installed in the rear push cavity. The telescopic screw shaft 5 is connected to the threaded hole on one side of the rear push cavity through the thread. One end of the telescopic screw shaft 5 is fixedly connected to the sealing plug 501 in the airtight cavity 101, and the other end passes through the threaded hole on one side of the rear push cavity and is provided with a nut 502.

[0046] The anti-detachment column 2 is pre-embedded in the wall 01 along with the pre-embedded pipe 1 to reinforce the pre-embedded pipe 1 in the wall 01.

[0047] One end of the anti-detachment column 2 retracts into the airtight cavity 101, and its extension and retraction are adjusted on the outside of the pre-embedded pipe 1 according to the change of air pressure at the bottom of the airtight cavity 101.

[0048] Example 2:

[0049] Based on Example 1, the following is added:

[0050] Reference Figure 1 and2 Two connecting ears 3 are symmetrically fixed at one end of the pre-embedded pipe 1 that extends out of the wall. The connecting rod 4 is fixedly connected to the connecting ears 3 by fastening bolts 301 and fastening nuts 302. The end of the connecting rod 4 near the pre-embedded pipe 1 is close to the nut 502, and the end of the connecting rod 4 away from the pre-embedded pipe 1 is directly connected to the external connector.

[0051] The connecting rod 4 is located between the two connecting lugs 3.

[0052] Reference Figure 2 The fastening bolts 301 are provided in at least two sets.

[0053] Reference Figure 2 and 3 The pre-embedded pipe 1 has a telescopic hole 102, which penetrates one side of the front push cavity of the airtight cavity 101. The anti-detachment column 2 passes through the telescopic hole 102 and is in close contact with the telescopic hole 102. One end of the anti-detachment column 2 inside the front push cavity of the airtight cavity 101 is provided with a limit protrusion.

[0054] Reference Figure 2 , 4 5. A protective sleeve 103 is fixedly installed at the end of the threaded hole on one side of the rear push cavity. The screw cap 502 is installed inside the protective sleeve 103. A protective cover 6 is fitted on the protective sleeve 103. The protective sleeve 103 and the protective cover 6 are detachably connected by threads.

[0055] Reference Figure 2 The protective cover 6 is provided with an abutment block 601 at the end away from the protective cylinder 103. The abutment block 601 is pressed and fixed to the end of the protective cylinder 103 by the connecting rod 4.

[0056] The bottom of the inner side of the cover 6 is also provided with an abutment block 601 for abutting the screw cap 502. Therefore, when the cover 6 is fixed on the sleeve 103, the abutment block 601 can be used to limit the screw cap 502.

[0057] The airtight cavity 101 is filled with hydraulic fluid in the front push chamber, and at least one anti-detachment column 2 is provided and arranged around the central axis of the pre-embedded pipe 1.

[0058] Reference Figure 6 The pre-embedded pipe 1 can also pass through the wall 01, and the anti-detachment column 2 is stuck on the other side of the wall 01.

[0059] Example 3:

[0060] This invention discloses a method for using scaffold wall ties, comprising the following steps:

[0061] Step 1: Push the telescopic screw 5 toward the bottom of the airtight cavity 101 by screwing the screw cap 502, and use the sealing plug 501 to compress the air in the airtight cavity 101, so that the anti-detachment column 2 extends out of the pre-embedded pipe 1 from the telescopic hole 102.

[0062] Step 2: Calculate the pre-embedded length of the pre-embedded pipe 1 in the wall and pre-embed the pre-embedded pipe 1 in the wall, ensuring that the end of the pre-embedded pipe 1 with the connecting lug 3 extends out of the wall.

[0063] Step 3: Twist the protective cover 6 to the outside of the protective sleeve 103 to cover and protect the screw cap 502;

[0064] Step 4: Place the end of the connecting rod 4, which is directly connected to the scaffold, between the two connecting lugs 3, and then use the fastening bolt 301 to pass through the connecting lug 3 and the connecting rod 4, and use the fastening nut 302 to fix it, so as to realize the connection and fixation between the scaffold and the wall.

[0065] Step 5: During the dismantling of the scaffolding, first loosen the fastening bolts 301 and fastening nuts 302 to remove the connecting rod 4 from between the two connecting lugs 3;

[0066] Step 6: Unscrew the protective cover 6 installed on the protective sleeve 103, and use a tool to screw the cap 502, causing the telescopic screw shaft 5 and the sealing plug 501 to be pulled out of the airtight cavity 101. At this time, the volume at the bottom of the airtight cavity 101 increases and the air pressure decreases, causing the anti-detachment column 2 to retract into the airtight cavity 101, making the section of the pre-embedded pipe 1 embedded in the wall a smooth body, thus allowing it to be pulled out.

[0067] In step two, during the pre-embedding process, the pre-embedded pipe 1 leaves a gap connecting the anti-detachment column 2 to the outside of the wall, and a section of the pre-embedded pipe 1 embedded in the wall can also penetrate the wall, and a limiting plate is fixed at the end that protrudes.

[0068] In step four, the connecting rod 4, which is fixed between the two connecting ears 3, is made to ensure that its end abuts against the outer edge of the cover 6, thereby using the abutting block 601 inside the cover 6 to abut and limit the screw cap 502.

[0069] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A scaffolding wall tie, comprising an embedded pipe (1) and a connecting rod (4), wherein one side of the embedded pipe (1) is embedded in the wall and the other side of the embedded pipe (1) is connected to the connecting rod (4), characterized in that: The pre-embedded pipe (1) is pre-embedded in the wall and has an anti-detachment column (2) installed on one side. The extension direction of the anti-detachment column (2) is perpendicular to the axis of the pre-embedded pipe (1). The pre-embedded pipe (1) has a hollow structure. An airtight cavity (101) is provided inside the pre-embedded pipe (1). A sealing plug (501) is movably installed inside the airtight cavity (101). The sealing plug (501) isolates the airtight cavity (101) into a front push cavity and a rear push cavity. The front push cavity is located on the side where the anti-detachment column (2) is installed. A threaded hole is opened on one side of the rear push cavity. A telescopic screw shaft (5) is provided inside the rear push cavity. The telescopic screw shaft (5) is connected to the threaded hole on one side of the rear push cavity through the thread. One end of the telescopic screw shaft (5) is fixedly connected to the sealing plug (501) inside the airtight cavity (101), and the other end passes through the threaded hole on one side of the rear push cavity and is provided with a screw cap (502). A protective sleeve (103) is fixedly installed at the end of the threaded hole on one side of the rear push cavity. The screw cap (502) is installed inside the protective sleeve (103). A protective cover (6) is fitted on the protective sleeve (103). The protective sleeve (103) and the protective cover (6) are detachably connected by threads. The protective cover (6) is provided with an abutment block (601) at the end away from the protective tube (103). The abutment block (601) is pressed and fixed to the end of the protective tube (103) by the connecting rod (4). The end of the connecting rod (4) near the pre-embedded pipe (1) is close to the screw cap (502).

2. A scaffolding wall tie according to claim 1, characterized in that: The pre-embedded pipe (1) has two symmetrically fixed connecting ears (3) at one end extending out of the wall. The connecting rod (4) is fixedly connected to the connecting ears (3) by fastening bolts (301) and fastening nuts (302). The end of the connecting rod (4) away from the pre-embedded pipe (1) is directly connected to the external connector.

3. A scaffolding wall tie according to claim 2, characterized in that: The fastening bolts (301) are provided in at least two sets.

4. A scaffolding wall tie according to claim 2, characterized in that: The pre-embedded pipe (1) has a telescopic hole (102) which penetrates one side of the front push cavity of the airtight cavity (101). The anti-detachment column (2) passes through the telescopic hole (102) and is in close contact with the telescopic hole (102). One end of the anti-detachment column (2) in the front push cavity of the airtight cavity (101) is provided with a limit protrusion.

5. A scaffolding wall tie according to claim 1, characterized in that: The airtight cavity (101) is filled with hydraulic fluid in the front push chamber, and at least one anti-detachment column (2) is provided and arranged around the central axis of the pre-embedded pipe (1).

6. The method of using a scaffolding wall tie as described in claim 4, characterized in that: Includes the following steps: Step 1: Push the telescopic screw (5) toward the bottom of the airtight cavity (101) by screwing the screw cap (502), and use the sealing plug (501) to compress the air in the airtight cavity (101), thereby extending the anti-detachment column (2) out of the pre-embedded pipe (1) from the telescopic hole (102); Step 2: Calculate the length of the pre-embedded pipe (1) in the wall and pre-embed the pipe (1) in the wall, ensuring that the end of the pre-embedded pipe (1) with the connecting ear (3) extends out of the wall. Step 3: Twist the protective cover (6) onto the outside of the protective sleeve (103) to cover and protect the screw cap (502); Step 4: Place the end of the connecting rod (4) directly connected to the scaffold between the two connecting ears (3), and then use the fastening bolt (301) to pass through the connecting ear (3) and the connecting rod (4), and use the fastening nut (302) to fix it, so as to realize the connection and fixation between the scaffold and the wall; Step 5: During the dismantling of the scaffolding, first loosen the fastening bolts (301) and fastening nuts (302) to remove the connecting rod (4) from between the two connecting lugs (3); Step 6: Unscrew the protective cover (6) installed on the protective sleeve (103), and use a tool to screw the cap (502) to drive the telescopic screw shaft (5) and the sealing plug (501) out of the airtight cavity (101). At this time, the volume at the bottom of the airtight cavity (101) increases and the air pressure decreases, which drives the anti-detachment column (2) to retract into the airtight cavity (101), so that the section of the pre-embedded pipe (1) embedded in the wall becomes a smooth body, and thus it can be pulled out.

7. The method of using a scaffolding wall tie according to claim 6, characterized in that: In step two, during the pre-embedding process, the pre-embedded pipe (1) leaves a gap between the anti-detachment column (2) and the outside of the wall, and a section of the pre-embedded pipe (1) is pre-embedded in the wall and penetrates the wall, and a limiting plate is fixed at the end that protrudes.

8. The method of using a scaffolding wall tie according to claim 6, characterized in that: In step four, the connecting rod (4) fixed between the two connecting ears (3) ensures that its end abuts against the outer edge of the cover (6), thereby using the abutting block (601) inside the cover (6) to abut and limit the screw cap (502).

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