A grouting sleeve with strong gripping force and its precast shear wall

Abstract

The present invention discloses a strong-holding grouting sleeve and a prefabricated shear wall thereof, belonging to the technical field of prefabricated walls, wherein the strong-holding grouting sleeve comprises a cylinder, and the side wall of the cylinder is provided with two slurry ports distributed up and down, and each of the slurry ports is connected with a slurry pipe, and the slurry pipe comprises a first type of slurry pipe body and a second type of slurry pipe body, wherein the first type of slurry pipe body is a straight pipe, and the first type of slurry pipe body is located on the cylinder at the front side, and the second type of slurry pipe body comprises a straight portion and a curved portion, and the second type of slurry pipe body is located on the cylinder at the rear side, and the curved portion is connected with the cylinder at the rear side; the straight portions of the first type of slurry pipe body and the second type of slurry pipe body are parallel; and the lower end of the cylinder is connected with a bolt by a thread. The invention has the advantages of precision and holding force.

Description

Technical Field

[0001] The present invention belongs to the technical field of precast walls, and particularly relates to a grouting sleeve with strong grip force and a precast shear wall thereof. Background Art

[0002] A precast shear wall is a concrete wall structure prefabricated in a factory. It is usually used in buildings to withstand lateral loads, such as forces caused by earthquakes or winds. Such a wall can be solid or have cavities to reduce weight and provide space for wiring and piping. The advantages of precast shear walls include fast construction speed, good quality control, and less interference during on-site construction.

[0003] A grouting sleeve with strong grip force is a grouting connector used in building construction. Through its high-strength grip force and the filling of grouting materials, it ensures a firm connection between the connector and the connected component. Such a sleeve is usually used for steel bar connection. By pouring cement slurry or other grouting materials, an integral body is formed between the steel bar and the sleeve, thereby improving the stability and bearing capacity of the structure.

[0004] When manufacturing a precast shear wall, since the precast shear wall has a cuboid structure, it is necessary to arrange the vertical steel bars in a rectangular array, and then fill the space between the steel bars with concrete or other materials to form an inner leaf. To fix the steel bars, several grouting sleeves can be arranged in an array at the lower part of the inner leaf, and then the lower ends of the steel bars are inserted into the grouting sleeves. However, the existing grouting sleeves are independent of each other, making it difficult to accurately arrange them in an array, which results in inaccurate arrangement of the steel bars in the wall. Moreover, the grouting material may be difficult to completely fill the grouting sleeve, resulting in low grip force. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the present invention provides a grouting sleeve with strong grip force and a precast shear wall thereof, which have the advantages of high precision and strong grip force, and solve the problems of the prior art.

[0006] The present invention is implemented as follows. A grouting sleeve with strong grip force includes a cylinder body. Two slurry ports are arranged on the side wall of the cylinder body in a vertical distribution. Each slurry port is communicated with a slurry pipe. The slurry pipe includes a first type of slurry pipe body and a second type of slurry pipe body. The first type of slurry pipe body is a straight pipe, and the first type of slurry pipe body is located on the front side of the cylinder body. The second type of slurry pipe body includes a straight part and a bent part. The second type of slurry pipe body is located on the rear side of the cylinder body, and the bent part is communicated with the rear side of the cylinder body. The straight parts of the first type of slurry pipe body and the second type of slurry pipe body are parallel. The lower end of the cylinder body is connected with a bolt by a thread.

[0007] Preferably, a threaded hole is provided in the middle of the cylinder body. A threaded rod is connected inside the threaded hole. A first insertion hole is formed in the threaded rod. At least part of the first insertion hole is located in the cylinder body. The first insertion hole is a round hole. The diameter of the first insertion hole is smaller than the inner diameter of the cylinder body. An outwardly expanding hole communicating with the first insertion hole is provided at the edge of the first insertion hole.

[0008] Preferably, a slurry channel is provided inside the threaded rod. The slurry channel communicates with the first insertion hole and the outwardly expanding hole. A support rod is fixedly connected to the upper end of the bolt. The support rod can be inserted into the first insertion hole, and the upper end of the support rod can be attached to the steel bar.

[0009] Preferably, the support rod can extend above the first insertion hole that it can reach.

[0010] Preferably, sealing members are provided at the ends of the first type of slurry pipe body and the second type of slurry pipe body.

[0011] Preferably, one end of the threaded rod has an injection port, and the other end of the threaded rod is closed. A dial block is fixedly connected to the outer surface of the threaded rod near the injection port. The strong grip grouting sleeve further includes a U-shaped plate. A middle hole is provided in the middle of the U-shaped plate. The threaded rod is inserted into the middle hole. A rotating ring is rotatably connected to the side of the middle hole through a bearing. A dial piece is provided on the inner surface of the rotating ring. The dial piece can be attached to the dial block. A dial rod is provided on the outer surface of the rotating ring.

[0012] Preferably, a first limiting hole and a second limiting hole are provided on both sides of the U-shaped plate. The first type of slurry pipe body is inserted into the first limiting hole, and the second type of slurry pipe body is inserted into the second limiting hole.

[0013] Preferably, a threaded sleeve ring is connected to the outside of the threaded rod by a thread. A second insertion hole is provided on the outside of the threaded sleeve ring. A plug rod is inserted into the second insertion hole.

[0014] A precast shear wall includes: an inner leaf plate, a thermal insulation board and an outer leaf plate which are sequentially attached from the inside to the outside, and the inner leaf plate, the thermal insulation board and the outer leaf plate are internally connected by a first connecting member; a second connecting member is provided on the surface of the inner leaf plate for connecting a diagonal brace; the inner leaf plate is a reinforced concrete plate, and a first steel bar vertically arranged is provided inside the inner leaf plate. The lower end of the first steel bar is supported by the strong grip grouting sleeve described above; a second steel bar arranged horizontally is connected to the first steel bar. The upper end of the first steel bar and the left and right ends of the second steel bar all extend out of the concrete; the thickness of the thermal insulation board is 30-100 mm; rabbets are provided on the upper and lower sides of the outer leaf plate for upper and lower mating connection to prevent water from seeping in.

[0015] Preferably in the present invention, windows are provided on the inner leaf plate, the heat preservation plate and the outer leaf plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, different types of slurry pipes are respectively arranged on both sides of the cylinder body to realize the functions of grouting and overflowing slurry. The first type of slurry pipe body on the front side is a straight pipe, which is convenient for direct grouting; while the second type of slurry pipe body on the rear side includes a straight part and a bent part, and the bent part is designed to avoid the obstruction of the front cylinder body, ensuring smooth grouting. At the same time, the rotating bolt can not only fix the cylinder body to the base plate, but also further extrude the slurry to improve the grip force. This design significantly improves the practicability and performance of the grouting sleeve. First of all, through the layout of slurry pipes with different designs in the front and rear, the problem of space obstruction in the grouting process is solved, ensuring the smoothness and efficiency of the grouting process. Secondly, the dual mechanisms of grouting and overflowing slurry effectively remove the air in the sleeve, ensure the close combination between the steel bar and the cylinder body, and enhance the connection strength. Finally, the dual functions of the rotating bolt - both fixing and extruding the slurry - further improve the grip force of the steel bar, ensuring the stability and durability of the connection structure. In addition, the seal design at the upper end of the cylinder body effectively prevents the leakage of grouting materials and improves the overall grouting quality.

[0018] 2. In the present invention, a threaded hole is provided in the middle of the cylinder body and connected with a threaded rod, so that the front and rear cylinder bodies can be firmly connected. At the same time, the design of the first jack and the outward - expanding hole on the threaded rod not only allows the slurry to pass through, but also enables the steel bar to be inserted into the first jack to limit the steel bar and reduce its inclination, and the existence of the outward - expanding hole ensures that the slurry can flow smoothly even when the steel bar is inserted into the first jack. On the one hand, the threaded connection ensures the alignment and stability of the cylinder body, preventing displacement; on the other hand, the ingenious combination of the first jack and the outward - expanding hole not only solves the problem of easy inclination of the steel bar, but also does not hinder the flow of the slurry, improving the construction efficiency and quality, especially suitable for scenarios requiring highly delicate slurry.

[0019] 3. The present invention relies on the slurry channel provided inside the threaded rod to communicate with the first jack and the outward expansion hole. During the operation, slurry is injected into the system through the slurry channel. The slurry then distributes to the upper and lower sides of the casing via the first jack and the outward expansion hole, and finally overflows through the upper and lower slurry pipes, thus completing the entire grouting process of the casing. At the same time, the designed support rod is connected to the bolt, which not only provides support for the steel bar, but also, through its appropriate size design (such as the diameter of the support rod being 10%-30% of the diameter of the first jack), avoids the obstruction of the steel bar to the slurry flow and ensures the smooth circulation of the slurry. The beneficial effect of this design lies in its significant efficiency improvement. Since the slurry is filled from the middle to the upper and lower sides of the cylinder simultaneously, compared with the traditional method of injecting slurry from one side and overflowing from the other side, this design greatly shortens the flow distance of the slurry in the casing, and only needs to flow half the height of the cylinder to complete the filling, significantly improving the grouting efficiency. In addition, the design of the support rod also ensures that the steel bar will not become an obstacle to the slurry flow, further guaranteeing the smooth progress of the grouting process. This innovative grouting method not only simplifies the operation process, but also improves the engineering quality and efficiency, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the high-grip grouting sleeve provided in Embodiment 1 of the present invention;

[0021] Figure 2 is a schematic three-dimensional structure diagram of the high-grip grouting sleeve provided in Embodiment 2 of the present invention with the threaded rod omitted;

[0022] Figure 3 is a schematic three-dimensional structure diagram of the high-grip grouting sleeve provided in Embodiment 2 of the present invention from the first perspective;

[0023] Figure 4 is the present invention Figure 3 an enlarged structural diagram of part A;

[0024] Figure 5 is the present invention Figure 3 an enlarged structural diagram of part B;

[0025] Figure 6 is a schematic three-dimensional structure diagram of the U-shaped plate provided in Embodiment 2 of the present invention;

[0026] Figure 7 is a schematic three-dimensional structure diagram of the high-grip grouting sleeve provided in Embodiment 2 of the present invention from the second perspective;

[0027] Figure 8 is the present invention Figure 7 an enlarged structural diagram of part C;

[0028] Figure 9It is a schematic structural diagram of a precast shear wall provided by the present invention;

[0029] Figure 10 It is the present invention Figure 9 An enlarged structural diagram of part D in it.

[0030] In the figure: 1, cylinder; 2, first type of slurry pipe body; 3, second type of slurry pipe body; 4, bolt; 5, threaded hole; 6, threaded rod; 7, first socket; 8, outward expanding hole; 9, slurry channel; 10, support rod; 11, injection port; 12, dialing block; 13, U-shaped plate; 14, middle hole; 15, rotating ring; 16, dialing piece; 17, dialing rod; 18, first limiting hole; 19, second limiting hole; 20, threaded sleeve ring; 21, second socket; 22, inserting rod; 23, inner leaf plate; 24, insulation board; 25, outer leaf plate; 26, second connecting piece; 27, first steel bar; 28, second steel bar; 29, tongue-and-groove; 30, window. Specific embodiments

[0031] In order to further understand the content, features and effects of the present invention, the following embodiments are cited and described in detail with the accompanying drawings as follows.

[0032] The structure of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Embodiment 1

[0034] Refer to Figure 1 , a grouting sleeve with strong grip force provided by an embodiment of the present invention includes a cylinder 1. Two slurry ports are provided on the side wall of the cylinder 1 and are distributed up and down. Each slurry port is connected to a slurry pipe. The slurry pipe includes a first type of slurry pipe body 2 and a second type of slurry pipe body 3. The first type of slurry pipe body 2 is a straight pipe. The first type of slurry pipe body 2 is located on the front side of the cylinder 1. The second type of slurry pipe body 3 includes a straight part and a bent part. The second type of slurry pipe body 3 is located on the rear side of the cylinder 1, and the bent part communicates with the rear side of the cylinder 1; the straight parts of the first type of slurry pipe body 2 and the second type of slurry pipe body 3 are parallel; the lower end of the cylinder 1 is threadedly connected with a bolt 4.

[0035] Through this setting, during layout, the cylinder 1 with the first type of slurry pipe body 2 is arranged on the front side, and the cylinder 1 with the second type of slurry pipe body 3 is arranged on the rear side; since the second type of grouting pipe has a bent part, it will not be blocked by the sleeve on the front side and will not prevent grouting and overflow of slurry. Since the straight parts of the first type of slurry pipe body 2 and the second type of slurry pipe body 3 are parallel, to a certain extent, the cylinder 1 on the front side and the cylinder 1 on the rear side can be aligned, which is convenient for improving the accuracy of layout.

[0036] Then insert the lower end of the steel bar into the cylinder 1 from above. Since two slurry pipes are connected to each cylinder 1, slurry can be injected from one slurry pipe so that the slurry enters the cylinder 1 and fills the gap between the steel bar and the cylinder 1. When it is full, it can overflow from the other slurry pipe (a seal can be provided at the upper end of the cylinder 1 to prevent the grouting material from leaking and ensure the grouting quality). Through this setting, the air in the cylinder 1 can be discharged, and the steel bar and the cylinder 1 can be connected as a whole.

[0037] Then rotate the bolt 4. On the one hand, the bolt 4 can be used to fix multiple sleeves on the bottom substrate (the bottom substrate of the inner vane 23. A number of positioning holes or strip holes can be provided on the substrate to accommodate the bolt 4). On the other hand, by screwing the bolt 4 into the cylinder 1, the slurry can be squeezed to improve the grip force on the steel bar.

[0038] Exemplarily, the cylinder 1 is cylindrical.

[0039] Embodiment 2

[0040] Refer to Figures 2 - 8 , a through threaded hole 5 is provided in the middle of the cylinder 1. A threaded rod 6 is connected inside the threaded hole 5. A first jack 7 is provided on the threaded rod 6. At least part of the first jack 7 is located in the cylinder 1. The first jack 7 is a round hole. The diameter of the first jack 7 is smaller than the inner diameter of the cylinder 1. An outwardly expanding hole 8 communicating with the first jack 7 is provided at the edge of the first jack 7.

[0041] Through this setting, the following effects are achieved:

[0042] First, by providing the threaded rod 6, the front cylinder 1 and the rear cylinder 1 can be connected together to form a system, enabling the front cylinder 1 and the rear cylinder 1 to be aligned. And since it is connected by threads, when the threaded rod 6 does not rotate, it can also prevent the front cylinder 1 and the rear cylinder 1 from approaching or moving away from each other;

[0043] Second, by providing the first jack 7 and the outwardly expanding hole 8, the slurry can be allowed to pass through. And when the diameter of the steel bar corresponds to the diameter of the first jack 7, the steel bar can be inserted into the first jack 7, thereby limiting the steel bar through the first jack 7 and reducing the inclination degree of the steel bar. Because if the gap between the steel bar and the inner diameter of the cylinder 1 is large, it is very easy to tilt. Due to the provision of the outwardly expanding hole 8, even if the steel bar is inserted into the first jack 7, the slurry can still pass through the outwardly expanding hole 8. It should be noted that in this setting, the fineness of the slurry needs to be relatively high. And if the above-mentioned threaded rod 6 scheme is adopted, the slurry is still injected from the lower slurry pipe, and the slurry passes through the first jack 7 and the outwardly expanding hole 8 and finally overflows from the upper slurry pipe.

[0044] Furthermore, a slurry channel 9 is provided inside the threaded rod 6, and the slurry channel 9 communicates with the first jack 7 and the outward expansion hole 8; a support rod 10 is fixedly connected to the upper end of the bolt 4, and the support rod 10 can be inserted into the first jack 7, and the upper end of the support rod 10 can be attached to the steel bar.

[0045] With this arrangement, a new use can be unlocked, that is: injecting slurry through the slurry channel 9, and then enabling the slurry to enter the inside of the cylinder 1 through the first jack 7 or the outward expansion hole 8, and filling simultaneously above and below the cylinder 1. When the filling is completed, it overflows through the upper and lower slurry pipes. That is, in this solution, the slurry is not injected through one slurry pipe and overflows through another slurry pipe, but is injected through the middle slurry channel 9 and overflows through the upper and lower two slurry pipes. With this arrangement, grouting can be carried out on the front and rear cylinders 1 simultaneously (in the prior art, grouting is carried out on the front and rear sleeves separately). And because the slurry is filled from the middle to the upper and lower two directions, the slurry only needs to flow half the height of the cylinder 1 to complete the filling, thus improving the efficiency. And because the support rod 10 is provided, it can support the steel bar, enabling the bottom of the steel bar to be inserted into the first jack 7, but not completely penetrating the first jack 7, so that the steel bar does not obstruct the flow of the slurry in the slurry channel 9. Exemplarily, the diameter of the support rod 10 is 10%-30% of the diameter of the first jack 7.

[0046] Furthermore, by rotating the bolt 4, the support rod 10 can extend above the first jack 7. With this arrangement, the depth of insertion of the steel bar into the cylinder 1 can be adjusted, and since the steel bar is propped up, it does not obstruct the injection of the slurry from the first jack 7 into the inside of the cylinder 1.

[0047] Furthermore, sealing members (not shown in the figure) are provided at the ends of the first type of slurry pipe body 2 and the second type of slurry pipe body 3. When injecting slurry through the slurry channel 9, the front cylinder 1 is first filled with slurry. When the filling is completed, the first type of slurry pipe body 2 can be closed through the sealing member, and then the slurry will flow into the rear cylinder 1 to continue filling the rear cylinder 1. When the slurry overflows from the second type of slurry pipe body 3, the grouting is completed. The sealing member can be set as a valve or a plug, and there is no limitation here.

[0048] Furthermore, one end of the threaded rod 6 has an injection port 11, and the other end of the threaded rod 6 is closed. A shift block 12 is fixedly connected to the outer surface of one side of the threaded rod 6 near the injection port 11. The strong grip grouting sleeve also includes a U-shaped plate 13, a middle hole 14 is provided in the middle of the U-shaped plate 13, the threaded rod 6 is inserted into the middle hole 14, and a swivel 15 is rotatably connected to the side of the middle hole 14 through a bearing, and a shift piece 16 is provided on the inner surface of the swivel 15, and the shift piece 16 can fit the shift block 12, and a shift rod 17 is provided on the outer surface of the swivel 15. With this arrangement, the swivel 15 can be rotated by shifting the shift rod 17, and then the swivel 15 drives the threaded rod 6 to rotate, and the shift piece 16 rotates the threaded rod 6 by shifting the shift block 12.

[0049] Furthermore, the U-shaped plate 13 is provided with a first limiting hole 18 and a second limiting hole 19 on both sides; the first type of slurry pipe body 2 is inserted into the first limiting hole 18, and the second type of slurry pipe body 3 is inserted into the second limiting hole 19. When the threaded rod 6 is rotated, the first limiting hole 18 and the second limiting hole 19 respectively limit the first type of slurry pipe body 2 and the second type of slurry pipe body 3 to prevent the cylinder body 1 at the front and rear sides from tilting.

[0050] It should be noted that the gap between the front cylinder 1 and the rear side can be adjusted. For example, three first plug holes 7 are provided, two cylinders 1 are matched with two of the first plug holes 7, and the remaining first plug holes 7 are sealed by other parts. For example, the specific scheme of sealing the remaining first plug holes 7 by other parts is as follows:

[0051] The outer side of the threaded rod 6 is connected with a threaded collar 20 by threading, and the outer side of the threaded collar 20 is provided with a second plug hole 21, and a plug rod 22 is inserted in the second plug hole 21. Through this setting, the two cylinders 1 cooperate with two of the first plug holes 7, and the threaded collar 20 can seal the remaining first plug holes 7. It should be noted that four or more first plug holes 7 can also be provided, and the number or length of the threaded collar 20 can be increased to seal the redundant first plug holes 7. And through this setting, it also has the following uses: first, by inserting a short plug rod 22 into the second plug hole 21, the threaded collar 20 can be rotated by toggling the plug rod 22; second, by inserting a long plug rod 22 into the second plug holes 21 of a row of several threaded collars 20, several groups of cylinders 1 can be aligned, which is convenient for forming a rectangular array distribution and preventing the threaded collar 20 from rotating by mistake.

[0052] Further, in one embodiment, two first jacks 7 are provided, and the two first jacks 7 are respectively engaged with the two cylinders 1. The threaded rod 6 has opposite threads. By rotating the threaded rod 6, the distance between the two cylinders 1 can be finely adjusted. If a part of the first jack 7 moves to the outside of the cylinder 1, it can be blocked by the threaded collar 20, and the threaded collar 20 can abut against the outer surface of the side wall of the cylinder 1, thereby locking the cylinder 1 and the threaded rod 6.

[0053] A precast shear wall includes: an inner leaf 23, a thermal insulation board 24, and an outer leaf 25 which are sequentially attached from the inside to the outside, and the inner leaf 23, the thermal insulation board 24, and the outer leaf 25 are internally connected by a first connecting member; a second connecting member 26 is provided on the surface of the inner leaf 23 for connecting a diagonal brace 10 (not shown in the figure); the inner leaf 23 is a reinforced concrete slab, and the inner leaf 23 internally has a vertically arranged first reinforcing bar 27, and the lower end of the first reinforcing bar 27 is carried by the strong grip grouting sleeve; a horizontally arranged second reinforcing bar 28 is connected to the first reinforcing bar 27, and the upper end of the first reinforcing bar 27 and the left and right ends of the second reinforcing bar 28 all extend out of the concrete; the thickness of the thermal insulation board 24 is 30-100 mm; the upper and lower sides of the outer leaf 25 are provided with rabbets 29 for upper and lower mating and clamping to prevent water from seeping in, and the outer leaf 25 is used to protect the exterior wall.

[0054] Further, windows 30 are provided on the inner leaf 23, the thermal insulation board 24, and the outer leaf 25.

[0055] The working principle of the present invention:

[0056] During layout, the cylinder 1 having the first type of slurry pipe body 2 is arranged at the front side, and the cylinder 1 having the second type of slurry pipe body 3 is arranged at the rear side; since the second type of grouting pipe has a bent portion, it will not be blocked by the sleeve at the front side and will not prevent grouting and overflow of slurry. Since the straight portions of the first type of slurry pipe body 2 and the second type of slurry pipe body 3 are parallel, the cylinders 1 at the front side and the cylinders 1 at the rear side can be aligned to a certain extent, which is convenient for improving the accuracy of layout. Then, the lower end of the steel bar is inserted into the cylinder 1 from above. Since two slurry pipes are connected to each cylinder 1, slurry can be injected from one slurry pipe to make the slurry enter the cylinder 1 and fill the gap between the steel bar and the cylinder 1. When it is full, it can overflow from the other slurry pipe. Through this setting, the air in the cylinder 1 can be discharged, and the steel bar and the cylinder 1 can be connected as a whole. Then rotate the bolt 4. On the one hand, the bolt 4 can fix a plurality of cylinders 1 on the bottom substrate, and on the other hand, by screwing the bolt 4 into the cylinder 1, the slurry can be extruded to improve the grip force on the steel bar.

[0057] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0058] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A strong grip grouting sleeve, comprising a cylinder (1), wherein the side wall of the cylinder (1) is provided with two grouting ports distributed vertically, characterized in that: Each of the slurry ports is connected to a slurry pipe, the slurry pipe comprising a first type slurry pipe body (2) and a second type slurry pipe body (3), the first type slurry pipe body (2) being a straight pipe, the first type slurry pipe body (2) being located on the front side of the cylinder (1), the second type slurry pipe body (3) comprising a straight portion and a curved portion, the second type slurry pipe body (3) being located on the rear side of the cylinder (1), and the curved portion being connected to the rear side of the cylinder (1); the straight portions of the first type slurry pipe body (2) and the second type slurry pipe body (3) being parallel; the lower end of the cylinder (1) being threadedly connected with a bolt (4); A threaded hole (5) is provided in the middle of the cylinder (1), a threaded rod (6) is connected to the inside of the threaded hole (5), a first plug hole (7) is provided on the threaded rod (6), the first plug hole (7) is at least partially located in the cylinder (1), the first plug hole (7) is a circular hole, the diameter of the first plug hole (7) is smaller than the inner diameter of the cylinder (1), and an outer expansion hole (8) connected to the first plug hole (7) is provided at the edge of the first plug hole (7); The threaded rod (6) is provided with a slurry channel (9) inside, and the slurry channel (9) is connected to the first insertion hole (7) and the outer expansion hole (8); the upper end of the bolt (4) is fixedly connected with a support rod (10), and the support rod (10) can be inserted into the first insertion hole (7), and the upper end of the support rod (10) can be attached to the steel bar; The outer side of the threaded rod (6) is connected to a threaded collar (20) through a threaded connection, and the outer side of the threaded collar (20) is provided with a second insertion hole (21), and an insertion rod (22) is inserted into the second insertion hole (21); by inserting a short insertion rod (22) into the second insertion hole (21), the threaded collar (20) can be easily rotated by moving the insertion rod (22); or by inserting a long insertion rod (22) into the second insertion holes (21) of a row of a plurality of threaded collars (20), a plurality of groups of cylinders (1) are aligned to form a rectangular array distribution, and the threaded collar (20) is prevented from rotating erroneously.

2. A strong grip grouting sleeve as claimed in claim 1, characterized in that: The support rod (10) can extend above the first insertion hole (7).

3. A strong grip grouting sleeve as claimed in claim 2, characterized in that: The ends of the first type slurry pipe body (2) and the second type slurry pipe body (3) are both provided with blocking pieces.

4. A strong grip grouting sleeve as claimed in claim 3, characterized in that: One end of the threaded rod (6) is provided with an injection port (11), the other end of the threaded rod (6) is closed, and a shifting block (12) is fixedly connected to an outer surface of one side of the threaded rod (6) close to the injection port (11); The strong grip grouting sleeve also includes a U-shaped plate (13), a middle hole (14) is provided in the middle of the U-shaped plate (13), the threaded rod (6) is inserted into the middle hole (14), a swivel (15) is rotatably connected to the side of the middle hole (14) via a bearing, a paddle (16) is provided on the inner surface of the swivel (15), the paddle (16) can be fitted on the paddle block (12), and a paddle rod (17) is provided on the outer surface of the swivel (15).

5. A strong grip grouting sleeve as claimed in claim 4, characterized in that: A first limiting hole (18) and a second limiting hole (19) are provided on both sides of the U-shaped plate (13); the first type of slurry pipe body (2) is plugged into the first limiting hole (18), and the second type of slurry pipe body (3) is plugged into the second limiting hole (19).

6. A prefabricated shear wall, characterized in that: include: An inner blade plate (23), a heat preservation plate (24) and an outer blade plate (25) are sequentially arranged from the inside to the outside, and the inner blade plate (23), the heat preservation plate (24) and the outer blade plate (25) are connected by a first connecting piece; a second connecting piece (26) is provided on the surface of the inner blade plate (23) for connecting the diagonal brace rod (10); The inner blade plate (23) is a reinforced concrete plate, and a vertically arranged first steel bar (27) is provided inside the inner blade plate (23), and the lower end of the first steel bar (27) is supported by the strong-hold bond grouting sleeve according to any one of claims 1 to 5; a transversely arranged second steel bar (28) is connected to the first steel bar (27), and the upper end of the first steel bar (27) and the left and right ends of the second steel bar (28) both extend out of the concrete; The thickness of the insulation board (24) is 30-100 mm; The outer blade plate (25) is provided with tongue and groove (29) on both sides thereof, which are used for upper and lower matching and clamping to prevent water from penetrating.

7. A prefabricated shear wall according to claim 6, characterized in that: The inner blade plate (23), the heat-insulating plate (24) and the outer blade plate (25) are all provided with windows (30).

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