Telescopic pre-embedding-free wall connecting piece

Abstract

The utility model discloses a telescopic pre-embedding-free wall connecting piece which comprises a fixed support, a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece. The telescopic auxiliary rod is fixedly connected with the fixed support; one end of the telescopic main pipe is arranged on the telescopic auxiliary rod in a sleeving mode, the length-adjustable range is arranged in the overlapping area of the telescopic main pipe and the telescopic auxiliary rod, the telescopic main pipe is in threaded connection with the telescopic auxiliary rod, and the other end of the telescopic main pipe is connected with the external scaffold through a fastener to form a whole; and the fixing buckle is inserted into a gap between the telescopic main pipe and the telescopic auxiliary rod so as to fix the telescopic auxiliary rod and the telescopic main pipe. According to the pre-embedding-free wall connecting piece with the adjustable telescopic length and the adjustable angle, after external scaffold construction is completed, the device is installed, the length of the wall connecting piece is adjusted by adjusting the overlapping length of the telescopic auxiliary rod and the telescopic main pipe, and the use requirement for the site construction length is met.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction scaffolds, in particular to a telescopic pre-embedded wall connecting piece. Background Art

[0002] In the field of construction, common external scaffolding mostly adopts coupler-type steel pipe scaffolding. Wall ties serve as a reliable structure connecting the external scaffolding to the structure, providing an important role in resisting wind loads and preventing deformation and overturning of the external frame.

[0003] Conventional wall tie construction involves pre-embedded components into the concrete before the main building structure is poured. After the concrete is poured, the components become integrated with the structure. During the removal of the external scaffolding, the embedded portion of the wall tie needs to be cut, but this is ineffective and requires polishing and repair. Furthermore, embedded components that extend into the structure cannot be removed and reused, resulting in material waste. Furthermore, the steel pipes used in existing conventional wall ties are fixed in length and cannot be adjusted in length or angle, making them difficult to adapt to various complex and changing working conditions. Utility Model Content

[0004] The purpose of the present utility model is to provide a retractable pre-embedded wall connecting member to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides a retractable pre-embedded wall connection part, including: a fixed support, which is fixed on the structural wall; a telescopic sub-rod, which is fixedly connected to the fixed support; a telescopic main pipe, one end of which is sleeved on the telescopic sub-rod, and the overlapping area of the telescopic main pipe and the telescopic sub-rod is provided with an adjustable length range, the telescopic main pipe is threadedly connected to the telescopic sub-rod, and the other end of the telescopic main pipe is connected to the external scaffolding with a fastener to form a whole; and a fixing clip, which is inserted in the gap between the telescopic main pipe and the telescopic sub-rod to fix the telescopic sub-rod and the telescopic main pipe.

[0006] In a preferred embodiment, four sections of first threads are evenly spaced on the inner wall of the telescopic main tube, the arc length of each section of the first thread thread is 1 / 8 of the circumference of the telescopic main tube, and the distance between two adjacent sections of the first thread thread arc length is the length of one section of the first thread thread arc length.

[0007] In a preferred embodiment, the telescopic sub-rod is a round steel with a thread on the outside, and four sections of second threads matching the first threads of the telescopic main rod are provided on the outer wall of the telescopic sub-rod. The arc length of each section of the second thread is 1 / 8 of the circumference of the telescopic sub-rod, and the distance between two adjacent sections of the second thread is the arc length of one section of the second thread.

[0008] In a preferred embodiment, the fixed support is fixed to the structural wall by expansion bolts, and the tail of the telescopic auxiliary rod is fixedly connected to the fixed support by fixing screws.

[0009] In a preferred embodiment, the fixed support includes a support base plate and a first connecting plate. One side of the support base plate is in contact with the structural wall. The two first connecting plates are arranged at intervals and are perpendicular to the support base plate. A first pin shaft hole is provided at the center of the first connecting plate.

[0010] In a preferred embodiment, a second connecting plate is provided at the tail of the telescopic auxiliary rod, a second pin hole is opened on the second connecting plate, and the second connecting plate is inserted between the two first connecting plates and fixed by a pin.

[0011] Compared with the existing technology, the present invention has the following advantages: it provides a wall tie that can be adjusted in length and angle without pre-embedded components. After the external scaffolding is completed, the device is installed. By adjusting the overlap between the telescopic auxiliary rod and the main telescopic rod, the length of the wall tie can be adjusted to meet the length requirements of on-site construction. Furthermore, by connecting the rear end of the telescopic auxiliary rod to the fixed support via a set screw, the angle can be adjusted to meet the requirements of different working conditions and angles on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the retractable pre-embedded wall connection member of the utility model;

[0013] Figure 2 It is the front elevation view of the telescopic auxiliary rod;

[0014] Figure 3 It is a top view of the telescopic auxiliary rod;

[0015] Figure 4 This is the front elevation of the telescopic main pipe;

[0016] Figure 5 It is a top view of the telescopic main pipe;

[0017] Figure 6 Schematic diagram of fixing the card;

[0018] Figure 7 This is the front elevation of the fixed support;

[0019] Figure 8 It is the side elevation view of the fixed support;

[0020] Figure 9 This is a schematic diagram of the connection process between the telescopic main rod and the telescopic auxiliary rod.

[0021] Description of reference numerals:

[0022] 1- fastener, 2- telescopic main pipe, 20- first thread, 3- telescopic auxiliary rod, 30- second thread, 31- second connecting plate, 32- second pin hole, 4- fixed support, 41- support base plate, 42- first connecting plate, 43- first pin hole, 5- expansion bolt, 6- fixing clip, 7- fixing screw, 8- external scaffolding upright. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] like Figures 1 to 9 As shown, the telescopic wall-connecting member of the present invention includes: a fastener 1, a telescopic main rod 2, a telescopic secondary rod 3, a fixed support 4, an expansion bolt 5, and a fixed clip 6. The fixed support 4 is fixedly connected to the structural wall by the expansion bolt 5. The tail of the telescopic secondary rod 3 is fixedly connected to the fixed support 4. One end of the telescopic main rod 2 is sleeved on the telescopic secondary rod 3, and the overlapping area of the telescopic main rod 2 and the telescopic secondary rod 3 is provided with an adjustable length range. The telescopic main rod 2 and the telescopic secondary rod 3 are threadedly connected. The other end of the telescopic main rod 2 is connected to the external scaffolding by the fastener 1 to form a whole. After the construction of the external scaffolding is completed, the present invention is installed. By adjusting the overlapping length of the telescopic secondary rod 3 and the telescopic main rod 2, the overall length of the wall-connecting member can be adjusted to meet the length requirements of the on-site construction. After the overlapping length of the telescopic secondary rod 3 and the telescopic main rod 2 is adjusted, the fixed clip 6 is inserted into the gap between the telescopic main rod 2 and the telescopic secondary rod 3 to fix the telescopic secondary rod 3 and the telescopic main rod 2, preventing the telescopic main rod 2 and the telescopic secondary rod 3 from sliding.

[0026] Furthermore, the telescopic main tube 2 is a hollow steel tube, and four sections of first threads 20 are evenly spaced along the circumference of the inner wall of the telescopic main tube 2. The arc length of each section of the first thread is 1 / 8 of the circumference of the telescopic main tube, and the spacing between two adjacent sections of the first thread is the length of one section of the first thread. The threaded sections (4 sections in total) and the unthreaded sections (4 sections in total) are evenly spaced. The telescopic sub-rod 3 is round steel with threads on the outside, and four sections of second threads 30 matching the first threads 20 are evenly spaced along the circumference of the outer wall of the telescopic sub-rod 3. The arc length of each section of the second thread is 1 / 8 of the circumference of the telescopic sub-rod, and the spacing between two adjacent sections of the second thread is the length of one section of the second thread. The threaded sections (4 sections in total) and the unthreaded sections (4 sections in total) are evenly spaced, and each section of the second thread runs through the entire length of the telescopic sub-rod 3 along the axial direction of the telescopic sub-rod. By rotating the telescopic main pipe 2 and adjusting the angle between the telescopic auxiliary rod 3 and the telescopic main pipe 2, the overlapping area of the telescopic main pipe thread and the telescopic auxiliary rod thread is adjusted, thereby adjusting the length of the telescopic non-embedded wall connection piece so that the applicable length range is within the range of 250mm-550mm.

[0027] Furthermore, the fixed support 4 includes a support base plate 41 and a first connecting plate 42. One side of the support base plate 41 is in contact with the structural wall. Two first connecting plates 42 are spaced apart and perpendicular to the support base plate 41. A first pin hole 43 is provided at the center of the first connecting plate 42. The support base plate 41 is fixed to the structural wall via expansion bolts 5. The tail of the telescopic auxiliary rod 3 is fixed to the fixed support 4 using fixing screws 7.

[0028] Furthermore, a second connecting plate 31 is provided at the tail of the telescopic auxiliary rod 3, and a second pin hole 32 is opened on the second connecting plate 31. The second connecting plate 31 is inserted between the two first connecting plates 42 and fixed by fixing screws 7 to form a rotatable angle structure.

[0029] Furthermore, a fixing slot portion 61 is provided on one side of the upper end of the fixing buckle 6. After the telescopic sub-rod and the telescopic main rod are rotated until the threads completely overlap, the fixing buckle 6 is inserted into the gap area between the telescopic main rod and the telescopic sub-rod, so that the telescopic main rod and the telescopic sub-rod are fixed and cannot rotate, forming a stable structure.

[0030] Example 2

[0031] In this embodiment, the size of the second connecting plate 31 at the tail of the telescopic sub-rod 3 is 50mm×25mm×8mm. It is arranged near the connection end of the fixed support and perpendicular to the direction of the telescopic sub-rod 3. A second pin shaft hole 32 is provided on the second connecting plate 31, and the diameter of the second pin shaft hole 32 is 10mm.

[0032] The support base plate 41 of the fixed support 4 is a 100mm x 100mm x 5mm steel plate. The center of the connecting plate is located 20mm to either side of the center of the steel plate. The first connecting plate 42 is a 50mm x 50mm x 5mm steel plate. The first connecting plate 42 is perpendicular to the support base plate 41 and has a first pin hole 43 extending through the center of the first connecting plate 42. The first pin hole 43 and the second pin hole 32 are holes of the same diameter and are connected using matching fixing screws 7 to form a rotatable structure.

[0033] Furthermore, the support base plate 41 is provided with four expansion bolt fixing holes at the four corners, which are compatible with the expansion bolts 5 driven into the wall. The present invention drives the expansion bolts 5 into the exterior facade of the structure, and is suitable for various types of concrete shear walls, structural side beams, structural columns, areas where it is difficult to embed short steel pipes in building side beams, and building internal and external corners. The expansion bolts 5 are removable and can be removed later, making later sealing easier and reducing the risk of wall leakage.

[0034] Example 3

[0035] This embodiment is a specific use process of the retractable pre-embedded wall connection piece:

[0036] After the external scaffolding is erected, the wall ties need to be installed. First, locate the location where the wall ties need to be set on the external wall, then drill holes, and place the expansion bolts 5 into the pre-drilled holes. Then install the fixed support 4, and match the four corner bolt eyes of the fixed support 4 with the four expansion bolts placed in the structural wall one by one, and then fix the fixed support 4.

[0037] Then extend the second connecting plate 31 at the end of the telescopic auxiliary rod 3 into the middle of the two first connecting plates 42 of the fixed support, align the screw eyes, and pass the fixing screws 7 through the fixed support and the end of the telescopic auxiliary rod to fix the telescopic auxiliary rod 3, completing the installation of the telescopic auxiliary rod 3. Figure 9 As shown in the figure, the threads of the telescopic main rod 2 and the telescopic sub-rod 3 are completely staggered. The telescopic sub-rod 3 is inserted into the telescopic main rod 2. After it is extended to the appropriate position, the telescopic main rod 2 is rotated until the threads of the telescopic main rod 2 and the telescopic sub-rod 3 are completely overlapped. The fixing card 6 is inserted into any gap area at the end of the telescopic main rod 2 and the telescopic sub-rod 3 to complete the fixation. Subsequently, the non-threaded part of the telescopic main rod is connected to the outer scaffolding upright 8 with the fastener 1.

[0038] When the external frame needs to be dismantled after construction is completed, loosen the fasteners, remove the fixing clamps 6, rotate the telescopic main pipe 2 until the threads of the telescopic main pipe 2 and the telescopic auxiliary rod 3 are completely staggered, remove the telescopic main pipe 2, then unscrew the fixing screws 7 between the telescopic auxiliary rod 3 and the fixed support 4, and then remove the telescopic auxiliary rod 3. Finally, unscrew the expansion screws 5 of the fixed support fixed to the wall, remove the fixed support 4, and the entire structure is dismantled. All components except the expansion screws can be reused multiple times, meeting the construction technology of green construction.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retractable wall connection piece that does not require pre-embedded components, characterized by: include: A fixed support (4) fixed to the structural wall; A telescopic auxiliary rod (3) fixedly connected to a fixed support (4); A telescopic main pipe (2), one end of which is sleeved on the telescopic auxiliary rod (3), and an overlapping area of the telescopic main pipe (2) and the telescopic auxiliary rod (3) is provided with an adjustable length range, the telescopic main pipe (2) and the telescopic auxiliary rod (3) are threadedly connected, and the other end of the telescopic main pipe (2) is connected to the external scaffolding using a fastener (1) to form a whole; and A fixing buckle (6) is inserted into the gap between the telescopic main rod (2) and the telescopic auxiliary rod (3) to fix the telescopic auxiliary rod (3) and the telescopic main rod (2).

2. The retractable pre-embedded wall connection according to claim 1, characterized in that: Four first thread segments (20) are evenly spaced on the inner wall of the telescopic main tube (2), the arc length of each first thread segment is 1 / 8 of the circumference of the telescopic main tube, and the distance between two adjacent first thread segment arc lengths is the length of one first thread segment arc length.

3. The retractable pre-embedded wall connection according to claim 2 is characterized in that: The telescopic auxiliary rod (3) is a round steel bar with a threaded outer side. The outer wall of the telescopic auxiliary rod (3) is provided with four sections of second threads (30) matching the first threads (20) of the telescopic main rod (2). The arc length of each section of the second thread is 1 / 8 of the circumference of the telescopic auxiliary rod, and the distance between two adjacent sections of the second thread is the arc length of one section of the second thread.

4. The retractable pre-embedded wall connection according to claim 3 is characterized in that: The fixed support (4) is fixed to the structural wall via expansion bolts (5), and the tail of the telescopic auxiliary rod (3) is fixedly connected to the fixed support (4) via fixing screws (7).

5. The retractable pre-embedded wall connection according to claim 4 is characterized in that: The fixed support (4) comprises a support base plate (41) and a first connecting plate (42). One side of the support base plate (41) is in contact with the structural wall. The two first connecting plates (42) are arranged at intervals and are perpendicular to the support base plate (41). A first pin hole (43) is provided at the center of the first connecting plate (42).

6. The retractable pre-embedded wall connection according to claim 5, characterized in that: A second connecting plate (31) is provided at the tail of the telescopic auxiliary rod (3), a second pin hole (32) is provided on the second connecting plate (31), and the second connecting plate (31) is inserted between the two first connecting plates (42) and fixed by fixing screws (7).

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