Detachable PC outer wall plug design

Abstract

This invention relates to a detachable PC exterior wall, belonging to the field of PC exterior wall technology. Specifically, it is a detachable PC exterior wall reinforcement design, including an exterior wall assembly. The exterior wall assembly includes a lower wall body located at the bottom, and an upper wall body located at the top of the lower wall body. Inner reinforcement layers are fixedly installed on the inner sidewalls of both the lower and upper walls. Multiple inner fixing plates are fixedly installed at equal intervals on the adjacent ends of the inner sidewalls of two adjacent inner reinforcement layers. Reserved reinforcement bars are provided inside the interior of two adjacent inner reinforcement layers. The reserved reinforcement bars are fixedly installed on the sidewalls of adjacent inner fixing plates. Reserved sleeves are fixedly installed on the adjacent sidewalls of two adjacent reserved reinforcement bars. Connecting reinforcement bars are provided between the lower and upper walls. This invention, by designing the PC exterior wall to be detachable, effectively increases the wall size, resulting in a larger area for a single wall panel, thus improving transportation and construction efficiency. It solves the problems of increased transportation costs and reduced construction efficiency associated with existing PC exterior walls.

Description

Technical Field

[0001] This invention relates to the field of PC exterior wall technology, and in particular to a design for a detachable PC exterior wall reinforcement bar. Background Technology

[0002] Prefabricated buildings are currently one of the development directions of the construction industry, and the requirements are becoming increasingly higher. At the same time, resource conservation is becoming more and more important. In the design process, there are often some conflicts between the specifications and on-site construction. Therefore, this invention patent is very important for solving the actual needs on site.

[0003] Due to restrictions on road transport height and width, there are often requirements on the size of components, especially since the length of the pre-reserved reinforcing bars in the wall is relatively long. Combined with the length and width of the wall itself, this results in limited wall size. The same facade area needs to be divided into more blocks, which increases transportation costs and reduces construction efficiency. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes a detachable PC exterior wall reinforcement design. By disassembling the PC exterior wall, the wall size is effectively increased, resulting in a larger area for each wall panel and improved transportation and construction efficiency.

[0005] The technical solution to achieve the purpose of this invention is as follows: a detachable PC exterior wall reinforcement design, including an exterior wall assembly, the exterior wall assembly including a lower wall body set at the bottom, an upper wall body set at the top of the lower wall body, inner reinforcement layers fixedly installed on the inner sidewalls of both the lower wall body and the upper wall body, multiple inner fixing plates fixedly installed at equal intervals on the adjacent ends of the inner sidewalls of two adjacent inner reinforcement layers, reserved reinforcement bars are provided inside the interior of two adjacent inner reinforcement layers, the reserved reinforcement bars are fixedly installed on the sidewalls of adjacent inner fixing plates, reserved sleeves are fixedly installed on the adjacent sidewalls of two adjacent reserved reinforcement bars, and connecting reinforcement bars are provided between the lower wall body and the upper wall body, the upper and lower ends of the connecting reinforcement bars extending through the upper wall body and the lower wall body respectively to the interior of the adjacent reserved sleeves.

[0006] In some embodiments, a connecting assembly is provided between the lower wall and the upper wall. The connecting assembly includes two stabilizing balls, which are respectively fixedly installed on the upper and lower side walls of the connecting rib.

[0007] In some embodiments, guide grooves are provided on the side walls of the pre-reserved sleeves inside the lower wall and the upper wall, and the inner side walls of the guide grooves are inclined inward toward the interior of the pre-reserved sleeves.

[0008] In some embodiments, the inner wall of the reserved sleeve is provided with a threaded groove, and the adjacent side walls of the lower wall and the upper wall are provided with positioning grooves. A rotating disk is provided inside the positioning groove. The rotating disk is fixedly installed on the side wall of the connecting insert. Multiple circumferentially distributed driving grooves are provided on the side wall of the rotating disk.

[0009] In some embodiments, the drive slots are distributed at an angle, and a rotating rod is provided on the outside of the rotating disk. Two drive columns are fixedly installed on the rotating rod near the side wall of the drive slot, and the two drive columns are respectively locked inside the adjacent drive slots on opposite sides.

[0010] In some embodiments, a fixing assembly is provided between the lower wall and the upper wall. The fixing assembly includes a drive disk, on which a transmission rod is fixedly installed on the side wall near the rotating rod. The transmission rod is slidably installed inside the rotating rod. A limit groove is formed on the inner side wall of the rotating rod. A limit block is fixedly installed on the side wall of the transmission rod. The limit block is slidably installed inside the limit groove.

[0011] In some embodiments, an extension spring is fitted on the side wall of the transmission rod, the extension spring being located between the drive disc and the rotating rod, and a transmission groove is provided between the lower wall and the upper wall, with the rotating rod located inside the transmission groove.

[0012] In some embodiments, a sealing assembly is provided between the lower wall and the upper wall. The sealing assembly includes a sealing groove formed on one side wall of the lower wall and the upper wall, and an inner slot is formed at the bottom of the side wall near the outside of the sealing groove. A sealing block is provided between the lower wall and the upper wall, and the upper and lower ends of the sealing block are respectively locked into the sealing grooves on the lower wall and the upper wall. A snap-fit ​​block aligned with the inner slot is fixedly installed on the side wall of the sealing block.

[0013] In some embodiments, a deformation groove is provided on the side wall of the sealing block, and an expansion block is fixedly installed on the inner side wall of the deformation groove.

[0014] The significant advantages of this invention compared to existing technologies are:

[0015] Firstly, this invention, by inserting the two ends of the connecting ribs into the interiors of adjacent pre-reserved sleeves, snaps the lower and upper walls together. Before transportation, the lower wall, upper wall, and connecting ribs are disassembled to ensure that the component length does not exceed the limit. After delivery to the site, installation is carried out. This effectively solves the problem of transporting excessively long PC exterior wall panels, ensuring the facade effect, reducing the number of transportation trips, accelerating the construction period, and saving resources. By designing the PC exterior wall to be disassembled, the wall size is effectively increased, resulting in a larger area for each wall panel, thus improving transportation and construction efficiency. This solves the problem of increased transportation costs and reduced construction efficiency associated with existing PC exterior wall systems.

[0016] Secondly, this invention utilizes the deformability of the stabilizing ball to allow it to contract inside the pre-reserved sleeve, making the connecting rib more stable inside the sleeve. The stabilizing ball can rotate when placed inside the guide groove, allowing the connecting rib to be placed at an angle. This facilitates the upper wall body being inserted at an angle onto the top of the connecting rib. Finally, by moving the upper wall body downwards along with the connecting rib and rotating around the stabilizing ball near the top, the upper wall body can be installed on top of the lower wall body in a smaller space.

[0017] Thirdly, this invention uses a drive column that is inserted into a drive groove. Because the drive groove is inclined, when the rotating rod rotates, the drive column near the top will push the rotating disk to rotate, and the drive column near the bottom will be displaced from the drive groove as the rotating disk rotates. When the drive column near the bottom rotates to the top, it will push the rotating disk to rotate. This process is repeated, which facilitates the installation of the connecting rod.

[0018] Fourthly, this invention utilizes the elasticity of the extension spring to extend the drive plate outward, making it convenient for workers to align the screwdriver with the slot on the drive plate. By setting the transmission rod inside the rotating rod, workers can insert the screwdriver into the slot on the side wall of the drive plate and rotate the screwdriver, which will drive the rotating rod to rotate, making it convenient and labor-saving.

[0019] Fifthly, this invention utilizes a deformation groove to allow the upper and lower ends of the sealing block to be bent and folded towards the lower wall, facilitating the placement of the sealing block inside the sealing groove. When the sealing block is placed inside the sealing groove, the end of the sealing block near the inner wall of the sealing groove recovers under the pressure of the inner wall, and the snap-fit ​​block is locked inside the inner slot, facilitating the installation of the sealing block. By locking the snap-fit ​​block inside the inner slot, the lower wall and the upper wall are indirectly hung together, ensuring the stability of the positions of the lower wall and the upper wall. Attached Figure Description

[0020] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0023] Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the position of the stabilizing sphere in this invention;

[0025] Figure 5 This invention provides a stable main view.

[0026] Figure 6 This is a schematic diagram of the internal structure of the rotating rod of the present invention;

[0027] Figure 7 This is a partial front view of the sealing block of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Exterior wall components; 11. Lower wall; 12. Upper wall; 13. Internal reinforcement layer; 14. Internal fixing plate; 15. Reserved reinforcing bar; 16. Reserved sleeve; 17. Connecting reinforcing bar; 2. Connecting components; 21. Stabilizing ball; 22. Guide groove; 23. Rotating disk; 24. Drive groove; 25. Rotating rod; 26. Drive column; 27. Positioning groove; 3. Fixing components; 31. Drive disk; 32. Transmission rod; 33. Extension spring; 34. Limiting groove; 35. Limiting block; 36. Transmission groove; 4. Sealing components; 41. Sealing groove; 42. Internal locking groove; 43. Sealing block; 44. Snap-fit ​​block; 45. Expansion block; 46. Deformation groove. Detailed Implementation

[0030] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] This invention provides an improved design for detachable precast concrete (PC) external wall reinforcement bars. The technical solution of this invention is as follows:

[0032] Example 1:

[0033] like Figure 1As shown, a detachable PC exterior wall reinforcement design includes an exterior wall assembly 1. The exterior wall assembly 1 includes a lower wall 11 located at the bottom, and an upper wall 12 mirror-distributed on the top of the lower wall 11. Both the lower wall 11 and the upper wall 12 have inner reinforcement layers 13 fixedly installed on their inner sidewalls. The inner reinforcement layers 13 reinforce the interior of the lower wall 11 and the upper wall 12, increasing their strength. Multiple inner fixing plates 14 are equidistantly fixed to the adjacent ends of the inner sidewalls of two adjacent inner reinforcement layers 13. Pre-reserved reinforcement bars 15 are provided inside both adjacent inner reinforcement layers 13, and the pre-reserved reinforcement bars 15 are fixedly installed on the sidewalls of adjacent inner fixing plates 14. The inner fixing plates 14 fix the position of the pre-reserved reinforcement bars 15, ensuring their stability. The adjacent sidewalls of two adjacent pre-reserved reinforcement bars 15... Each wall panel is fixedly installed with a pre-reserved sleeve 16. The pre-reserved sleeve 16 is preferably welded to the side wall of the pre-reserved reinforcing bar 15. A connecting reinforcing bar 17 is provided between the lower wall 11 and the upper wall 12. The upper and lower ends of the connecting reinforcing bar 17 pass through the upper wall 12 and the lower wall 11 respectively and extend into the interior of the adjacent pre-reserved sleeve 16. By inserting the two ends of the connecting reinforcing bar 17 into the interior of the adjacent pre-reserved sleeve 16, the lower wall 11 and the upper wall 12 are snapped together. Before transportation, the lower wall 11, the upper wall 12 and the connecting reinforcing bar 17 are disassembled to ensure that the length of the components does not exceed the limit. After transportation to the site, they are installed. This can effectively solve the problem of transporting PC exterior wall panels that are too long, ensure the facade effect, reduce the number of transportations, speed up the construction period, and save resources. By designing the PC exterior wall to be disassembled, the wall size is effectively increased, making the area of ​​a single wall panel larger, and improving transportation efficiency and construction efficiency.

[0034] The specific working method is as follows: by inserting the two ends of the connecting rod 17 into the interior of the adjacent reserved sleeve 16, the lower wall 11 and the upper wall 12 are snapped together. Before transportation, the lower wall 11, the upper wall 12 and the connecting rod 17 are disassembled to ensure that the length of the components does not exceed the limit. After being transported to the site, they are installed. This method can effectively solve the problem of transporting PC exterior wall panels that are too long, ensure the facade effect, reduce the number of transportations, speed up the construction period, and save resources. By designing the PC exterior wall to be disassembled, the wall size is effectively increased, making the area of ​​a single wall panel larger, which improves transportation efficiency and construction efficiency.

[0035] Example 2:

[0036] Based on Example 1, please refer to Figure 2 - Figure 5A connecting component 2 is provided between the lower wall 11 and the upper wall 12. The connecting component 2 includes two stabilizing balls 21, which are fixedly installed on the upper and lower side walls of the connecting rib 17, respectively. By utilizing the deformability of the stabilizing balls 21, the stabilizing balls 21 can be contracted inside the reserved sleeve 16, making the connecting rib 17 more stable inside the reserved sleeve 16. The side walls of the reserved sleeve 16 inside the lower wall 11 and the upper wall 12 are provided with guide grooves 22. The inner side wall of the guide groove 22 is inclined inward towards the inside of the reserved sleeve 16. The stabilizing balls 21 can rotate when placed inside the guide groove 22, so that the connecting rib 17 can be placed at an angle, making it convenient for the upper wall 12 to be inserted at an angle on the top of the connecting rib 17. Finally, by moving the upper wall 12 downward along with the connecting rib 17 and rotating around the stabilizing ball 21 near the top, the upper wall 12 can be installed on the top of the lower wall 11 in a smaller space.

[0037] like Figure 2 - Figure 6 As shown, in one embodiment, to further ensure the stability of the connecting rib 17, a threaded groove is provided on the inner wall of the reserved sleeve 16, and the stabilizing ball 21 is threadedly connected to the inside of the reserved sleeve 16; by providing a threaded groove on the inner wall of the reserved sleeve 16, the deformability of the stabilizing ball 21 is utilized to increase the contact area between the inner wall of the reserved sleeve 16 and the stabilizing ball 21, further ensuring the stability of the connecting rib 17. Positioning grooves 27 are provided on adjacent side walls of the lower wall 11 and the upper wall 12. The part is provided with a rotating disk 23, which is fixedly installed on the side wall of the connecting rib 17. Multiple drive grooves 24 are circumferentially distributed on the side wall of the rotating disk 23. By opening multiple drive grooves 24 on the side wall of the rotating disk 23, the operator can turn the rotating disk 23 to drive the connecting rib 17 to rotate. The stabilizing ball 21 fits and deforms against the inner side wall of the reserved sleeve 16, thereby threadedly connecting with the inner side wall of the reserved sleeve 16, so that the stabilizing ball 21 rotates into the interior of the reserved sleeve 16, which facilitates the installation of the stabilizing ball 21.

[0038] like Figure 2 - Figure 6As shown, in one embodiment, to facilitate the rotation of the rotating disk 23, the drive slots 24 are inclined. A rotating rod 25 is provided on the outside of the rotating disk 23. Two drive columns 26 are fixedly installed on the side wall of the rotating rod 25 near the drive slot 24. The two drive columns 26 are respectively locked inside the adjacent drive slots 24 on opposite sides. By locking the drive columns 26 inside the drive slots 24, because the drive slots 24 are inclined, when the rotating rod 25 rotates, the drive column 26 near the top will push the rotating disk 23 to rotate, and the drive column 26 near the bottom will be offset from the drive slots 24 as the rotating disk 23 rotates. When the drive column 26 near the bottom rotates to the top, it will push the rotating disk 23 to rotate. This process is repeated to facilitate the installation of the connecting rib 17.

[0039] like Figure 2 - Figure 6 As shown, in one embodiment, to facilitate the rotation of the rotating rod 25, a fixing assembly 3 is provided between the lower wall 11 and the upper wall 12. The fixing assembly 3 includes a drive disk 31. A cross-shaped groove is formed on the side wall of the drive disk 31 away from the drive groove 24. A transmission rod 32 is fixedly installed on the side wall of the drive disk 31 near the rotating rod 25. The transmission rod 32 is slidably installed inside the rotating rod 25. By placing the transmission rod 32 inside the rotating rod 25, when the worker inserts a screwdriver into the groove on the side wall of the drive disk 31 and rotates the screwdriver, the rotating rod 25 can be rotated, which is convenient and labor-saving. A limit groove 34 is formed on the inner side wall of the rotating rod 25. A limit block 35 is fixedly installed on the side wall of the transmission rod 32. The limit block 35 is slidably installed on the limit groove 34. The inside of the slot 34; by sliding the limiting block 35 inside the limiting slot 34 and fixing the limiting block 35 to the transmission rod 32, the transmission rod 32 is prevented from rotating inside the rotating rod 25, which would prevent the transmission rod 32 from driving the rotating rod 25 to rotate. An extension spring 33 is sleeved on the side wall of the transmission rod 32, and the extension spring 33 is located between the drive disk 31 and the rotating rod 25. By utilizing the elasticity of the extension spring 33, the drive disk 31 is extended outward, making it convenient for the operator to align the screwdriver with the slot on the drive disk 31. Transmission slots 36 are opened between the lower wall 11 and the upper wall 12, and the rotating rod 25 is located inside the transmission slot 36. The transmission slot 36 accommodates the rotating rod 25, making it convenient for the operator to drive the drive disk 31 to rotate from the outside.

[0040] like Figure 2 - Figure 7As shown, in one embodiment, to further improve the stability between the lower wall 11 and the upper wall 12, a sealing assembly 4 is provided between the lower wall 11 and the upper wall 12. The sealing assembly 4 includes a sealing groove 41 formed on one side wall of the lower wall 11 and the upper wall 12, which is close to each other. The sealing groove 41 is L-shaped and the sealing grooves 41 on the lower wall 11 and the upper wall 12 are mirror-distributed. An inner groove 42 is formed at the bottom of the side wall of the sealing groove 41 near the outside. A sealing block 43 is provided between the lower wall 11 and the upper wall 12. The upper and lower ends of the sealing block 43 are respectively locked inside the sealing grooves 41 on the lower wall 11 and the upper wall 12. A snap-fit ​​block 44 aligned with the inner groove 42 is fixedly installed on the side wall of the sealing block 43. The snap-fit ​​block 44 is preferably integrally formed with the sealing block 43 to seal. A deformation groove 46 is provided on the side wall of the block 43. By utilizing the deformation groove 46, the upper and lower ends of the sealing block 43 can be bent and folded to one end of the lower wall 11, making it convenient to put the sealing block 43 into the interior of the sealing groove 41. When the sealing block 43 is put into the interior of the sealing groove 41, the end of the sealing block 43 near the inner side wall of the sealing groove 41 is restored under the pressure of the inner side wall of the sealing groove 41, and the snap-fit ​​block 44 is snapped into the interior of the inner snap-fit ​​groove 42, which facilitates the installation of the sealing block 43. By snapping the snap-fit ​​block 44 into the interior of the inner snap-fit ​​groove 42, the lower wall 11 and the upper wall 12 are indirectly hung together, ensuring the stability of the position of the lower wall 11 and the upper wall 12. An expansion block 45 is fixedly installed on the inner side wall of the deformation groove 46. The expansion block 45 improves the strength inside the deformation groove 46 and facilitates the restoration of the sealing block 43.

[0041] The specific working method is as follows: by utilizing the deformability of the stabilizing ball 21, the stabilizing ball 21 is contracted inside the reserved sleeve 16, making the connecting rib 17 more stable inside the reserved sleeve 16. The stabilizing ball 21 can rotate when placed inside the guide groove 22, allowing the connecting rib 17 to be placed at an angle, so that the upper wall body 12 can be inserted at an angle on the top of the connecting rib 17. Finally, by moving the upper wall body 12 downward along with the connecting rib 17 and rotating around the stabilizing ball 21 near the top, the upper wall body 12 can be installed on the top of the lower wall body 11 in a smaller space.

[0042] By inserting the drive post 26 into the drive groove 24, which is inclined, when the rotating rod 25 rotates, the drive post 26 near the top will push the rotating disk 23 to rotate, and the drive post 26 near the bottom will be displaced from the drive groove 24 as the rotating disk 23 rotates. When the drive post 26 near the bottom rotates to the top, it will push the rotating disk 23 to rotate. This process is repeated to facilitate the installation of the connecting rod 17.

[0043] By utilizing the elasticity of the extension spring 33, the drive plate 31 extends outward, making it convenient for the operator to align the screwdriver with the slot on the drive plate 31. By setting the transmission rod 32 inside the rotating rod 25, the operator can insert the screwdriver into the slot on the side wall of the drive plate 31 and rotate the screwdriver, which will drive the rotating rod 25 to rotate, making it convenient and labor-saving.

[0044] By utilizing the deformation groove 46, the upper and lower ends of the sealing block 43 can be bent and folded to one end of the lower wall 11, making it convenient to put the sealing block 43 into the interior of the sealing groove 41. When the sealing block 43 is put into the interior of the sealing groove 41, the end of the sealing block 43 near the inner wall of the sealing groove 41 is restored under the pressure of the inner wall of the sealing groove 41, and the snap-fit ​​block 44 is snapped into the interior of the inner snap-fit ​​groove 42, which facilitates the installation of the sealing block 43. By snapping the snap-fit ​​block 44 into the interior of the inner snap-fit ​​groove 42, the lower wall 11 and the upper wall 12 are indirectly hung together, ensuring the stability of the position of the lower wall 11 and the upper wall 12.

[0045] The technical means disclosed in this invention are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this invention are common knowledge to those skilled in the art.

Claims

1. A detachable PC exterior wall reinforcement structure, comprising an exterior wall assembly (1), the exterior wall assembly (1) comprising a lower wall body (11) disposed at the bottom, an upper wall body (12) disposed at the top of the lower wall body (11), and an inner reinforcement layer (13) fixedly installed on the inner sidewalls of both the lower wall body (11) and the upper wall body (12), wherein multiple inner fixing plates (14) are fixedly installed at equal intervals at one end of the inner sidewalls of two adjacent inner reinforcement layers (13), characterized in that: The interior of each of the two adjacent inner reinforcement layers (13) is provided with a reserved insert (15). The reserved insert (15) is fixedly installed on the side wall of the adjacent inner fixing plate (14). The side wall of the two adjacent reserved inserts (15) is fixedly installed with a reserved sleeve (16). A connecting insert (17) is provided between the lower wall (11) and the upper wall (12). The upper and lower ends of the connecting insert (17) pass through the upper wall (12) and the lower wall (11) respectively and extend to the interior of the adjacent reserved sleeve (16). A connecting component (2) is provided between the lower wall (11) and the upper wall (12). The connecting component (2) includes two stabilizing balls (21), which are respectively fixedly installed on the upper and lower side walls of the connecting rib (17). The lower wall (11) and the upper wall (12) have guide grooves (22) on the side wall of the reserved sleeve (16) that are close to each other. The inner side wall of the guide groove (22) is inclined to be recessed into the reserved sleeve (16). The inner wall of the reserved sleeve (16) is provided with a threaded groove, and the adjacent side walls of the lower wall (11) and the upper wall (12) are provided with positioning grooves (27). A rotating disk (23) is provided inside the positioning groove (27). The rotating disk (23) is fixedly installed on the side wall of the connecting rib (17). Multiple circumferentially distributed drive grooves (24) are provided on the side wall of the rotating disk (23). The drive slots (24) are distributed in an inclined manner. A rotating rod (25) is provided on the outside of the rotating disk (23). Two drive columns (26) are fixedly installed on the side wall of the rotating rod (25) near the drive slots (24). The two drive columns (26) are respectively locked in the interior of adjacent drive slots (24) on opposite sides. A fixing assembly (3) is provided between the lower wall (11) and the upper wall (12). The fixing assembly (3) includes a drive disk (31). A transmission rod (32) is fixedly installed on the side wall of the drive disk (31) near the rotating rod (25). The transmission rod (32) is slidably installed inside the rotating rod (25). A limit groove (34) is opened on the inner side wall of the rotating rod (25). A limit block (35) is fixedly installed on the side wall of the transmission rod (32). The limit block (35) is slidably installed inside the limit groove (34).

2. The detachable PC external wall reinforcement structure according to claim 1, characterized in that: An extension spring (33) is fitted on the side wall of the transmission rod (32). The extension spring (33) is located between the drive disc (31) and the rotating rod (25). A transmission groove (36) is provided between the lower wall (11) and the upper wall (12). The rotating rod (25) is located inside the transmission groove (36).

3. The detachable PC external wall reinforcement structure according to claim 1, characterized in that: A sealing assembly (4) is provided between the lower wall (11) and the upper wall (12). The sealing assembly (4) includes a sealing groove (41) opened on one side wall of the lower wall (11) and the upper wall (12). An inner slot (42) is opened at the bottom of the side wall of the sealing groove (41) near the outside. A sealing block (43) is provided between the lower wall (11) and the upper wall (12). The upper and lower ends of the sealing block (43) are respectively locked inside the sealing groove (41) on the lower wall (11) and the upper wall (12). A snap-fit ​​block (44) aligned with the inner slot (42) is fixedly installed on the side wall of the sealing block (43).

4. A detachable PC external wall reinforcement structure according to claim 3, characterized in that: The sealing block (43) has a deformation groove (46) on its side wall, and an expansion block (45) is fixedly installed on the inner side wall of the deformation groove (46).

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