A post-anchored wall element

Abstract

The application provides a back anchor type wall connecting piece, which comprises a fixing part, a connecting part, a lengthening rod and a supporting part sleeved on the lengthening rod, and is characterized in that the fixing part comprises a connecting seat and a positioning rod, the connecting seat is used for mounting the positioning rod, the positioning rod is used for being fixedly connected to a fixing hole of a wall body, the connecting seat comprises a connecting steel plate and an elastic pad, and the elastic pad is arranged between the connecting steel plate and the wall body; the connecting part comprises a connecting pipe and a connecting buckle, one end of the connecting pipe is connected to the connecting steel plate, the other end of the connecting pipe is provided with the connecting buckle, and the connecting buckle is used for connecting the connecting pipe and a scaffold; the lengthening rod and the supporting part sleeved on the lengthening rod are connected between the fixing part and the connecting part and are used for realizing wall connecting support without damaging the wall body. The wall connecting piece provided by the application has very small damage to the wall body, the connecting posture of the connecting steel plate and the wall body can be adjusted, the local stress between the fixing part and the wall body is reduced, and the application is safer and more reliable.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and more specifically, to a rear-anchored wall tie. Background Technology

[0002] With the development of the modern construction industry, more and more residential communities are becoming old and dilapidated after being exposed to the elements. To revitalize the community environment and eliminate safety hazards, facade renovation of these older communities has become essential. Facade renovation in older communities often involves erecting scaffolding to provide workspace for personnel. To ensure the stability and anti-overturning properties of the scaffolding, wall ties are typically used for connection.

[0003] In existing technologies, scaffolding wall ties are mostly fixed to the wall by pre-embedded steel pipes to provide connection support for the scaffolding. However, pre-embedding steel pipes is more suitable for cast-in-place structures. If used for the renovation of the facade of an older residential community, the wall structure needs to be damaged to achieve the pre-embedding of steel pipes. On the one hand, damaging the wall structure may lead to changes in the building's load-bearing structure, causing problems such as cracking and peeling. On the other hand, damaging the wall also affects the living experience of residents. In addition, the facades of older residential communities are exposed to wind and sun for a long time, and their surface flatness is generally poor. Uneven facades will also cause installation deviations of the wall ties, resulting in excessive local stress between the wall ties and the wall, which can easily lead to further damage to the local structure of the wall. Utility Model Content

[0004] This application addresses the shortcomings of existing methods by proposing a rear-anchored wall tie to solve the technical problems of excessive local stress between the wall tie and the wall caused by the need for destructive construction for wall pre-embedding and poor wall flatness.

[0005] This application provides a rear-anchored wall tie, including: The fixing part includes a connecting seat and a positioning rod. The connecting seat is used to install the positioning rod, and the positioning rod is used to be fixed in a fixing hole opened in the wall. The connecting seat includes a connecting steel plate and an elastic pad, and the elastic pad is disposed between the connecting steel plate and the wall. The connecting part includes a connecting pipe and a connecting buckle. One end of the connecting pipe is connected to the connecting steel plate, and the other end is provided with a connecting buckle. The connecting buckle is used to connect the connecting pipe and the scaffold. An extension rod and a support portion sleeved on the extension rod are connected between the fixing portion and the connecting portion to achieve wall connection support without damaging the wall.

[0006] Specifically, the main technical concept of this application lies in using a connecting seat in conjunction with a positioning rod. Only a fixing hole needs to be drilled in the wall to fix the connecting seat to the wall via the positioning rod. The scaffolding is then secured using the connecting part connected to the fixing part. This wall connection method causes very little damage to the wall and is easy to repair. Simultaneously, this application also includes an elastic pad between the connecting steel plate and the wall to adjust the connection posture, ensuring the connecting steel plate fits smoothly against the wall, preventing large deviations between the positioning rod and the fixing hole, reducing local stress between the fixing part and the wall, and preventing excessive local stress from further damaging the wall. Furthermore, this application strengthens the structural support between the wall connection and the wall through the design of the support part and the extension rod, further reducing local stress between the wall connection and the wall, making the wall connection provided by this application safer and more reliable.

[0007] Furthermore, the extension rod is provided with external threads, and one end of it is fixed to the middle of the connecting steel plate; The external thread engages with the internal thread of the connecting pipe, and is used to adjust the extension length of the connecting pipe along the longitudinal direction of the extension rod.

[0008] Specifically, another concept of this application is that by setting the extension rod, the extension length of the connecting pipe can be adjusted, which can easily accommodate scaffolding with different connection widths, so that the wall tie provided by this application can be applied to different types of scaffolding, thus expanding the application scenarios of this application.

[0009] Furthermore, the support includes an adjusting knob with internal threads, and a support leg connected to the outer periphery of the adjusting knob and extending toward the outer periphery of the connecting seat; The adjustment knob is connected to the extension rod via an internal thread.

[0010] Specifically, another technical concept of this application is that by setting the support legs with extension rods, the support legs will not interfere with the support and connection parts. Furthermore, by supporting the wall with the support legs, the contact area between the wall tie provided in this application and the wall will be increased, resulting in a smaller average load transmitted between the wall tie and the wall, and the local stress will be further distributed. This effectively reduces the risk of damage to the local bearing structure of the wall by the wall tie, making this application safer and more reliable.

[0011] Furthermore, the support foot is configured as an arc-shaped rib, and the wall thickness of the arc-shaped rib gradually widens from the outer periphery of the adjustment knob until it forms a contact surface; The contact surface is used to support the wall.

[0012] Optionally, the support leg includes multiple sets of support rods and support pads; The two ends of the support rod are respectively connected to the support pad and the adjustment knob, and the support pad is used to support the wall.

[0013] Specifically, this application provides two methods for achieving non-destructive support between the support and the wall: curved ribs, struts, and support pads. Furthermore, both the curved ribs and the support pads can be adjusted by rotating a knob, making operation simple and the structure reliable.

[0014] Furthermore, the center of the support pad protrudes outward to hinge to the strut.

[0015] Specifically, the support pad is hinged to the strut, which allows for adjustment of the fit between the support pad and the wall, thereby better adapting to uneven wall conditions. This enables the support pad to support uneven walls individually, which helps reduce local stress between the wall tie and the wall.

[0016] In some possible implementations, the four corners of the connecting steel plate are provided with first connecting holes, and the elastic pad is provided with second connecting holes that correspond one-to-one with the first connecting holes and are coaxially connected. The first connecting hole and the second connecting hole are used to pass through the positioning rod so as to fix the connecting seat by means of a nut.

[0017] Furthermore, the positioning rod includes a first rod body and a second rod body; The end of the first rod is provided with a connecting threaded sleeve, one end of the second rod is connected to the connecting threaded sleeve, and the other end of the second rod passes through the second connecting hole and extends out of the first connecting hole; The connecting threaded sleeve is recessed into the fixing hole opened in the wall.

[0018] Specifically, another technical concept of this application is that, through the segmented design of the positioning rod, the wall ties can be dismantled simply by removing the second rod outside the wall, without causing secondary damage to the wall. Simultaneously, the first rod and the connecting bolt sleeve are recessed into the fixing hole, facilitating wall repair after construction and maximizing the restoration of the wall's exterior facade.

[0019] In some possible implementations, the elastic pad is bonded to the connecting steel plate.

[0020] In some possible implementations, the fastener includes any one of a right-angle buckle, cable tie, or binding rope.

[0021] The beneficial technical effects of the technical solutions provided in this application include: During the installation of wall ties, only fixing holes for securing the positioning rods need to be drilled in the wall to complete the installation of the fixing parts. This requires virtually no damage to the local structure of the wall, making the construction process simple, non-destructive to the wall, and suitable for the maintenance and renovation of old buildings. Simultaneously, the load transmitted by the scaffolding is transferred through the connecting steel plates and support parts, resulting in less local stress on the wall and significantly reducing the risk of local structural damage. Furthermore, the connecting steel plates do not directly contact the wall; instead, they are connected via elastic pads. On one hand, the elastic pads allow for adjustments to the supporting posture of the connecting steel plates against the wall, ensuring a closer fit and reducing local stress between the positioning rods and the wall. On the other hand, the elastic pads prevent hard contact between the connecting steel plates and the wall, and also protect the original surface of the wall. The extension rod in this application allows the connecting pipe to be adjusted longitudinally, making the extension length of the connecting pipe adjustable and easy to adapt to scaffolding with different connection widths. At the same time, the extension rod also provides structural support for the support legs, avoiding interference between the support legs and the fixed and connecting parts. The support legs further reduce the average load transmitted from the scaffolding to the wall, greatly reducing the risk of wall damage. This application also allows the positioning rod to be fixed to the wall without being removed, and can be directly embedded in the wall. This facilitates the overall repair of the wall and its surface after construction, ensuring the aesthetics of the wall facade and improving residents' experience with the wall renovation.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a structural schematic diagram of a rear-anchored wall tie provided in an embodiment of this application; Figure 2 A schematic diagram of the operation of a rear-anchored wall tie provided in an embodiment of this application; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Schematic diagram of half section along line B in the middle; Figure 5 This is a schematic diagram of the structure of the strut and support pad provided in one embodiment of this application; 1. Fixing part; 2. Connecting part; 3. Extension rod; 4. Support part; 5. Wall; 11. Connecting seat; 12. Positioning rod; 21. Connecting pipe; 22. Connecting buckle; 31. External thread; 41. Adjusting knob; 42. Support foot; 51. Fixing hole; 111. Connecting steel plate; 112. Elastic pad; 121. Nut; 122. First rod body; 123. Second rod body; 124. Butt threaded sleeve; 125. Washer; 211. Internal thread; 421. Arc rib; 422. Abutting surface; 423. Support rod; 424. Support pad; 425. Hinge block; 111a. First connecting hole; 112a. Second connecting hole. Detailed Implementation The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0024] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by this art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0026] First, let's introduce and explain several terms used in this application: Wall ties are components that enhance the stability of other structures by connecting to reliable fixed ends. In construction engineering, they are used to connect scaffolding frames to the main building structure and can transmit tensile and compressive forces. Scaffolding refers to a working platform erected to ensure the smooth progress of various construction processes; Old residential communities refer to residential communities that were built relatively early, have low construction standards, aging infrastructure, incomplete supporting facilities, and lack a long-term management mechanism.

[0027] This application mainly relates to a rear-anchored wall tie, including a fixing part, a connecting part, an extension rod, and a support part. The fixing part is used to connect to the wall, the connecting part is used to connect to the scaffolding to form a connection between the scaffolding and the wall, and the support part is used to provide non-destructive support to the wall, thereby reducing the local stress applied to the wall by the wall tie during construction and preventing the local structure of the wall from being damaged due to excessive local stress.

[0028] The research and development concept of this application includes: fixing the connecting seat to the wall using a positioning rod, so that the fixing part can be installed in the wall only by opening a fixing hole. Since only a fixing hole is opened in the wall, the damage to the wall's load-bearing structure is minimal, ensuring the integrity of the wall structure as much as possible. At the same time, an elastic pad is used for buffering between the wall and the wall connector, which effectively enhances the fit between the wall connector and the wall and prevents damage to the wall surface. Furthermore, this application also provides structural support to the wall through a support part set in the extension rod, further increasing the contact area between the wall connector and the wall, reducing the average load applied to the wall by the wall connector, and ensuring that the wall connector does not damage the local structure of the wall during use.

[0029] The technical solution of this application and how it solves the above-mentioned technical problems are described in detail below with specific embodiments. It should be noted that the following embodiments can be referenced, borrowed, or combined with each other, and the same terms, similar features, and similar implementation steps in different embodiments will not be described again.

[0030] Please see Figure 1 , Figure 1 This is a structural schematic diagram of a rear-anchored wall tie provided in an embodiment of this application. The wall tie includes a fixing part 1, a connecting part 2, an extension rod 3, and a support part 4. The fixing part 1 is used to connect to the wall 5 and provide structural support. The fixing part 1 includes a connecting seat 11 and a positioning rod 12. The positioning rod 12 is fixed to the wall 5 and is used to connect the fixing part 1 to the wall 5. The connecting seat 11 includes a connecting steel plate 111 and an elastic pad 112. The elastic pad 112, which is set between the connecting steel plate 111 and the wall 5, enhances the fit between the fixing part 1 and the wall 5 and avoids direct rigid contact between the fixing part 1 and the wall 5, thus protecting the outer surface of the wall 5. The connecting part 2 is used to connect the wall 5 and the scaffolding respectively, so that the scaffolding is connected to the wall 5 through the wall tie and provides structural support for the scaffolding. The extension rod 3 is connected between the fixing part 1 and the connecting part 2, and the support part 4 is sleeved on its outer periphery. The support part 4 is used to support the wall 5. Since the support part 4 does not directly contact the wall 5, it can provide non-destructive support through the wall 5.

[0031] To further explain the working principle of this application, please refer to [link / reference]. Figure 2 , Figure 2This is a schematic diagram of the operation of a rear-anchored wall tie provided in one embodiment of this application.

[0032] Optionally, the connecting steel plate 111 is plate-shaped and may include circular or square shapes, while the elastic pad 112 is plate-shaped and adapted to fit the connecting steel plate 111, with its contact surface being larger than or equal to the surface of the connecting steel plate 111, providing flexible support between the connecting steel plate 111 and the wall 5. See also... Figure 3 , Figure 3 for Figure 2 In the enlarged view at point A, four first connecting holes 111a are provided at the four corners of the connecting steel plate 111, and four second connecting holes 112a are provided at the four corners of the elastic pad 112. The second connecting holes 112a and the first connecting holes 111a are coaxially connected and correspond one-to-one. Therefore, four positioning rods 12 are provided. Each positioning rod 12 passes through the first connecting hole 111a of the connecting steel plate 111, the second connecting hole 112a of the elastic pad 112, and the fixing hole 51 opened on the wall 5 in sequence. The protruding part of the positioning rod 12 is fastened by the nut 121 provided on the open side of the connecting steel plate 111, thereby fixing the elastic pad 112 and the connecting steel plate 111 to the wall 5.

[0033] Furthermore, the positioning rod 12 is an expansion bolt component. After a fixing hole 51 is opened in the wall 5, it is fixed in the fixing hole 51 to cooperate with the nut 121 to provide structural support for connecting the steel plate 111 and the elastic pad 112.

[0034] Furthermore, the positioning rod 12 is configured as an M12 expansion screw, the first connecting hole 111a and the second connecting hole 112a are configured as 13.5mm through holes, and the nut 121 is connected to the connecting steel plate 111 through a 3mm washer 125.

[0035] Further, see Figure 3 The positioning rod 12 includes a first rod body 122 built into the fixing hole 51 and a connecting threaded sleeve 124 set at the end of the first rod body 122. The second rod body 123 is connected to the connecting threaded sleeve 124 by a threaded connection. Thus, after the construction is completed, only the second rod body 123 needs to be removed to remove the connecting steel plate 111 and the elastic pad 112. Since the connecting threaded sleeve 124 is recessed into the fixing hole 51, the damaged part of the wall 5 can be repaired by filling and repairing the fixing hole 51, thus ensuring the aesthetics of the exterior facade of the wall 5.

[0036] Furthermore, the elastic pad 112 can be composed of any elastic material such as rubber, plastic, or foam. Due to the elastic properties of the elastic pad 112, it can be pressed firmly against the wall 5, increasing the contact area between it and the wall 5. This eliminates installation deviations caused by unevenness of the exterior facade of the wall 5 in older residential areas, thus avoiding the defect where the fixing part 1 is not pressed firmly against the wall 5 due to inconsistent hole positioning when the positioning rod 12 is positioned with four holes. This effectively increases the contact area between the fixing part 1 and the wall 5, reducing local stress between the positioning rod 12 and the wall 5, and preventing further damage to the fixing hole 51 due to excessive local stress. In addition, the contact between the elastic pad 112 and the wall 5 is flexible and will not damage the surface of the wall 5. If the connecting steel plate 111 directly contacts the wall 5, it may cause pressure damage or cracking of the wall 5 surface.

[0037] Furthermore, the elastic pad 112 and the connecting steel plate 111 are pre-assembled as one unit by adhesive bonding.

[0038] Furthermore, the thickness of the elastic pad 112 ranges from 2mm to 5mm.

[0039] Furthermore, the thickness of the connecting steel plate 111 ranges from 5mm to 10mm.

[0040] Optionally, see Figure 2 One end of the extension rod 3 is vertically fixed to the middle of the connecting steel plate 111 by welding. The extension rod 3 is configured as a rod with external threads 31, so that the adjustment knob 41 of the support part 4 is connected to the extension rod 3 by threaded connection. The adjustment knob 41 drives the support foot 42 to move towards the wall 5 by rotation until it abuts against the wall 5, so that the support surface between the wall connector and the wall 5 is larger. Figure 2 The central support leg 42 is illustrated by an arc-shaped rib 421. The wall thickness of the arc-shaped rib 421 gradually widens from the outer periphery of the adjusting knob 41 to form a contact surface 422. The cross-section of the arc-shaped rib 421 is bowl-shaped. It is supported on the wall 5 by being inverted and fastened to the fixing part 1. The contact surface 422 is annular, providing a larger contact area with the wall 5. See also... Figure 4 , Figure 4 for Figure 2 The schematic diagram of the half section along the B direction shows that the cross section of the arc rib 421 is circular and completely overturned to connect the steel plate 111, so that the connecting steel plate 111 is accommodated in the arc rib 421, avoiding interference between the arc rib 421 and the connecting steel plate 111.

[0041] Furthermore, the contact surface 422 is configured as a flexible material.

[0042] Optionally, please see Figure 5 , Figure 5This is a schematic diagram of the structure of the strut 423 and the support pad 424 provided in one embodiment of this application. Figure 5 and Figure 2 From the same perspective. The support leg 42 includes four sets of support rods 423 and four sets of support pads 424. The two ends of each support rod 423 are respectively connected to one side of the support pad 424 and the outer periphery of the adjustment knob 41 to provide structural support for the support pad 424. Thus, by rotating the adjustment knob 41, the four support pads 424 can be unfolded and supported on the wall 5.

[0043] Furthermore, the middle part of the connection side of the support pad 424 and the strut 423 protrudes outward to form a hinge block 425. The hinge block 425 is hinged to one end of the strut 423, so that the support posture between the support pad 424 and the wall 5 can be adjusted by the hinge, so that the support pad 424 can fit against the wall 5.

[0044] Furthermore, the hinge includes either the pin-type or the bearing-type.

[0045] Optionally, see Figure 2 The connecting pipe 21 is screwed onto the extension rod 3 via an internal thread 211, thereby connecting the connecting part 2 and the fixing part 1. The connecting pipe 21 can be screwed onto the adjusting knob 41 to limit the adjustment knob 41, thereby enhancing the resistance between the support leg 42 and the wall 5. At the same time, the connecting pipe 21 is provided with a connecting buckle 22, which is used to connect the connecting pipe 21 and the scaffold, thereby connecting the scaffold to the wall 5 through force transmission.

[0046] Furthermore, the diameter range of the extension rod 3 includes 41.5mm-51.5mm.

[0047] Furthermore, the diameter of the connecting pipe 21 ranges from 45mm to 55mm.

[0048] Furthermore, the connecting buckle 22 includes any one of a right-angle buckle, a cable tie, or a binding rope.

[0049] In summary, this application provides a rear-anchored wall tie, the working principle of which is as follows: First, four fixing holes 51 are opened on the wall 5, and four positioning rods 12 are fixed in the four positioning holes; then, the positioning rods 12 are inserted through the four first connecting holes 111a on the connecting steel plate 111 and the four second connecting holes 112a on the elastic pad 112; then, the end of the second rod body 123 of the positioning rod 12 is screwed on by the nut 121 and the washer 125, so that the connecting steel plate 111 and the elastic pad 112 are fixed to the surface of the wall 5; the extension rod 3 is welded to the connecting steel plate 111, and the support part 4 is screwed on the extension rod 3 by adjusting the knob 41, and screwed on towards the wall 5 so that the support foot 42 is supported on the wall 5; the connecting pipe 21 is also screwed on the extension rod 3 by the external thread 31, and then the scaffolding is connected to the connecting pipe 21 by the connecting buckle 22, thus completing the wall connection safety of the scaffolding. Understandably, this application only requires four fixing holes 51 to be drilled on the wall 5 to complete the installation, causing minimal damage to the structure of the wall 5. Furthermore, the elastic pad 112 can adjust the fit between the fixing part 1 and the wall 5, eliminating the adverse effects of unevenness in the wall 5 and allowing the fixing part 1 to fully conform to the wall 5, reducing localized stress between the positioning rod 12 and the wall 5. Simultaneously, the flexible contact between the elastic pad 112 and the wall 5 effectively avoids damage to the surface of the wall 5. In addition, the first rod 122 of the positioning rod 12 is designed to be separate from the second rod 123 via a positioning screw sleeve, facilitating the subsequent removal of the wall connection. Since both the first rod 122 and the positioning screw sleeve are recessed into the wall 5, the fixing holes 51 on the wall 5 can be directly repaired, reducing the difficulty of restoring the wall 5.

[0050] Those skilled in the art will understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and solutions in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and solutions in related technologies that are similar to those disclosed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0051] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this application and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0053] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0055] The above description is only a partial implementation of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. A rear-anchored wall tie, characterized in that, include: The fixing part includes a connecting seat and a positioning rod. The connecting seat is used to install the positioning rod, and the positioning rod is used to be fixed in a fixing hole opened in the wall. The connecting seat includes a connecting steel plate and an elastic pad, and the elastic pad is disposed between the connecting steel plate and the wall. The connecting part includes a connecting pipe and a connecting buckle. One end of the connecting pipe is connected to the connecting steel plate, and the other end is provided with a connecting buckle. The connecting buckle is used to connect the connecting pipe and the scaffold. An extension rod and a support portion sleeved on the extension rod are connected between the fixing portion and the connecting portion to achieve wall connection support without damaging the wall.

2. The rear-anchored wall tie as described in claim 1, characterized in that, The extension rod is provided with external threads, and one end of it is fixed to the middle of the connecting steel plate; The external thread engages with the internal thread of the connecting pipe, and is used to adjust the extension length of the connecting pipe along the longitudinal direction of the extension rod.

3. The rear-anchored wall tie as described in claim 2, characterized in that, The support includes an adjusting knob with internal threads and a support leg connected to the outer periphery of the adjusting knob and extending toward the outer periphery of the connecting seat. The adjustment knob is connected to the extension rod via an internal thread.

4. The rear-anchored wall tie as described in claim 3, characterized in that, The support foot is configured as an arc-shaped rib, and the wall thickness of the arc-shaped rib gradually increases from the outer periphery of the adjustment knob until it forms a contact surface; The contact surface is used to support the wall.

5. The rear-anchored wall tie as described in claim 3, characterized in that, The support leg includes multiple sets of support rods and support pads; The two ends of the support rod are respectively connected to the support pad and the adjustment knob, and the support pad is used to support the wall.

6. The rear-anchored wall tie as described in claim 5, characterized in that, The center of the support pad protrudes outward to hinge to the strut.

7. The rear-anchored wall tie as described in claim 1, characterized in that, The four corners of the connecting steel plate are provided with first connecting holes, and the elastic pad is provided with second connecting holes that correspond one-to-one with the first connecting holes and are coaxially connected. The first connecting hole and the second connecting hole are used to pass through the positioning rod so as to fix the connecting seat by means of a nut.

8. The rear-anchored wall tie as described in claim 7, characterized in that, The positioning rod includes a first rod body and a second rod body; The end of the first rod is provided with a connecting threaded sleeve, one end of the second rod is connected to the connecting threaded sleeve, and the other end of the second rod passes through the second connecting hole and extends out of the first connecting hole; The connecting threaded sleeve is recessed into the fixing hole opened in the wall.

9. The rear-anchored wall tie as described in claim 1, characterized in that, The elastic pad is bonded to the connecting steel plate.

10. The rear-anchored wall tie as described in claim 1, characterized in that, The connecting buckle includes any one of the following: right-angle buckle, cable tie, or binding rope.

Images