Prefabricated concrete building connection structure

Abstract

The application relates to the technical field of fabricated concrete buildings, and discloses a fabricated concrete building connecting structure which is installed between two wallboards, the two wallboards are fixed to a main frame, comprises two connecting parts, installation grooves are formed in the opposite inner walls of the two wallboards, and the two connecting parts are respectively installed on the inner walls of the two installation grooves; when the two connecting parts are hooked, the two connecting parts are fixed through clamping parts; and the gap between the two wallboards is filled with flexible material.The fabricated concrete building connecting structure can improve the anti-seismic capacity between the two wallboards, reduce the wall cracking in the case of earthquake, increase the connectivity between the two wallboards through the hooking of the two connecting parts, improve the firmness between the two wallboards, and improve the installation efficiency and the installation speed through the hooking of the two connecting parts.

Description

Technical Field

[0001] This application relates to the field of prefabricated concrete building technology, and in particular to a prefabricated concrete building connection structure. Background Technology

[0002] Prefabricated construction refers to the transfer of a large amount of on-site work from traditional construction methods to factories. Wall panels, beams, columns, balconies, etc., are prefabricated in factories, transported to the construction site, and assembled on-site to create concrete structures. The emergence and development of prefabricated construction is an inevitable result of the construction industry's industrialization and modernization. It reflects the objective need to shift construction methods from traditional reliance on cheap labor and large-scale manual labor to mechanized, factory-based production.

[0003] Traditional precast wall panels and frames are mostly connected by a fully constrained rigid connection, with the wall panels and the main structure being fixed together. Under the action of seismic dynamic loads, the connection between the wall panels is often damaged due to excessive internal forces, increasing the potential risks to the structure. Summary of the Invention

[0004] To reduce the occurrence of damage at wall joints, this application provides a prefabricated concrete building connection structure.

[0005] This application provides a prefabricated concrete building connection structure using the following technical solution:

[0006] A prefabricated concrete building connection structure is installed between two wall panels, which are installed on the main frame. The structure includes two connecting parts, and the inner walls of the two wall panels are provided with mounting grooves. The two connecting parts are respectively installed on the inner walls of the two mounting grooves. When the two connecting parts are hooked together, the two connecting parts are fixed together by snap-fit ​​parts. The gap between the two wall panels is filled with flexible material.

[0007] By adopting the above technical solution, the seismic resistance between the two wall panels is improved by setting flexible materials, reducing the possibility of wall cracking during earthquakes. By setting two connecting parts and hooking them together, the connection between the two wall panels is increased, thereby improving the firmness between the two wall panels. By setting fixing parts, it is easy to keep the two connecting parts hooked together, reducing the possibility of loosening during earthquakes. In addition, the hooking of the two connecting parts can improve the speed of installation and increase installation efficiency.

[0008] Optionally, the connecting part includes a fixing plate, a first U-shaped plate, and a C-shaped plate. One side of the fixing plate is hinged to the inner wall of the mounting groove, and the other side of the fixing plate is fixed to the U-shaped plate. The C-shaped plate is hinged to the U-shaped groove of the U-shaped plate, and a first torsion spring is provided at the hinge point between the C-shaped plate and the first U-shaped plate. A sliding groove is provided on the inner wall of the U-shaped groove of the U-shaped plate. One side of the C-shaped plate is provided with an extension that slides within the sliding groove. A first snap-fit ​​hole is provided on the surface of the first U-shaped plate, and the first snap-fit ​​hole communicates with the sliding groove. A second snap-fit ​​hole is provided on the C-shaped plate, and the fixing part snaps into the first snap-fit ​​hole and the second snap-fit ​​hole.

[0009] By adopting the above technical solution, when two wall panels need to be spliced, the two first U-shaped plates approach each other, and the two C-shaped plates abut against each other, which allows the two fixing plates to rotate along the hinge point between themselves and the inner wall of the U-shaped groove of the first U-shaped plate, so that the two C-shaped plates enter the U-shaped groove of the adjacent first U-shaped plate and hook each other. The position of the C-shaped plates is fixed by the snap-fit ​​part, thereby improving the firmness between the two wall panels.

[0010] Optionally, the snap-fit ​​part includes a first sleeve, a first spring, and a steel rod. The first sleeve is fixed to the surface of the U-shaped plate, one end of the first spring is fixed inside the sleeve, and the other end of the first spring is fixed to the steel rod. The steel rod passes through the first snap-fit ​​hole and snaps into the second snap-fit ​​hole under the elastic force of the first spring. The outer wall of the steel rod is covered with a rubber sleeve.

[0011] By adopting the above technical solution, when the connecting parts are not hooked, the steel rod passes through the first locking hole and abuts against the extension. When the two C-shaped plates hook together, aligning the second locking hole of the extension with the first locking hole, the steel rod is locked into the second locking hole under the elastic force of the second spring, thus fixing the C-shaped plate to the position of the first U-shaped plate. By setting a rubber sleeve, the rubber sleeve has the function of absorbing energy and damping vibration, thereby improving the vibration damping performance when the two connecting parts hook together.

[0012] Optionally, the inner walls of both mounting slots are provided with fixing components. Each fixing component includes two fixing parts, namely a fixing rod, a second spring, a second sleeve, and a second U-shaped plate. The fixing rod is fixed to the inner wall of the mounting slot, the second sleeve is sleeved inside the fixing rod, and the two ends of the second spring are respectively fixed inside the fixing rod and the second sleeve. The second U-shaped plate is fixed to the end of the second sleeve away from the fixing rod. The fixing components can be snapped onto the outer wall of the fixing plate through a linkage component.

[0013] By adopting the above technical solution and setting a fixing component, it is easy to abut the second U-shaped plate against the outer wall of the fixing plate, thereby reducing the left and right swaying when the two connecting parts are hooked together; by setting a linkage component, when the two connecting parts are hooked together, the linkage component can make the fixing component simultaneously cancel the snap-fit ​​state, and the second U-shaped plate is released under the third elastic force and abuts against the outer wall of the fixing plate, thus improving the installation efficiency.

[0014] Optionally, the linkage assembly includes a third sleeve, a third spring, a drive rod, a branch pipe, a movable plate, and two linkage parts. The third sleeve is fixed to the side of the mounting groove near the fixed assembly. One end of the third spring is fixed inside the third sleeve, and the other end of the third spring is fixed to the drive rod. A positioning ring is fixed to the outer wall of the drive rod, and the positioning ring is engaged inside the third sleeve. Both linkage parts are hinged to both ends of the drive rod, and the linkage parts can be engaged to the second sleeve. The movable plate is installed between the two linkage parts, and both ends of the branch pipe are respectively hinged to the movable plate and the first U-shaped plate.

[0015] By adopting the above technical solution, during the rotation of the fixed plate along the hinge between itself and the inner wall of the mounting groove, the branch pipe applies pressure to the moving plate, causing the moving plate to move away from the branch pipe. This allows the linkage to release the engagement of the second sleeve, allowing the second U-shaped block to abut against the outer wall of the fixed plate. When the first U-shaped plate resets, the linkage returns to its initial state under the elastic force of the third spring, enabling the linkage to continue engaging the second sleeve, thereby improving the stability of the second sleeve engaging the fixed plate.

[0016] Optionally, the linkage includes a connecting rod and a locking block, a first rod and a second rod. One end of the connecting rod is hinged to the driving rod, and the locking block is rotatably mounted on the end of the connecting rod away from the driving rod. The second sleeve has a second locking groove and a third locking groove, which are spaced apart along the extension direction of the second sleeve. The locking block is engaged with the third locking groove from the second locking groove through the connecting groove. The first rod is hinged to the driving plate, and the second rod is hinged to the connecting rod. The adjacent ends of the first rod and the second rod are hinged together. A protrusion is provided at the hinge point of the first rod and the second rod. The moving plate has an oblong hole, the extension direction of which is the same as the extension direction of the driving rod, and the protrusion is located in the oblong hole of the moving plate.

[0017] By adopting the above technical solution, when the branch pipe applies pressure to the moving plate to move the moving plate, the protrusion moves in the waist-shaped hole, which enables the first rod and the second rod to rotate along the hinge, and the connecting rod to rotate along the hinge between itself and the drive rod, thereby causing the snap-fit ​​block to disengage from the second snap-fit ​​groove, the second sleeve to cancel the snap-fit ​​with the linkage, and the second U-shaped plate to pop outward; when the fixed plate returns to its original position, the connecting rod can be restored to its original position through the linkage transmission, and the snap-fit ​​block enters the third snap-fit ​​groove through the connecting groove, which can buffer the impact of the second sleeve popping outward, thereby reducing the possibility of damage to the connection.

[0018] Optionally, the drive rod is fixed with a directional rod, the movable plate has a directional hole, and the directional rod passes through the directional hole.

[0019] By adopting the above technical solution and setting a directional rod, the directional rod can be moved horizontally, thereby making the rotation angles of the two linkage parts the same, and at the same time canceling the jamming of the second sleeve.

[0020] Optionally, the C-shaped plate is provided with silicone blocks, which fill the gap where the U-shaped groove of the first U-shaped plate and the other C-shaped plate are hooked together.

[0021] By adopting the above technical solution, and by setting silicone blocks, when the two C-shaped plates are hooked together, the silicone blocks fill the gap in the first U-shaped plate, thereby improving the stability of the two U-shaped plates when hooked together. In addition, the silicone blocks have the function of deformation and energy absorption, further improving the shock absorption performance when the two connecting parts are connected.

[0022] Optionally, extruded polystyrene boards are fixed inside the mounting grooves of the two wall panels.

[0023] By adopting the above technical solution and setting extruded polystyrene (XPS) boards, the amount of flexible material entering the installation groove when filling the gap between two wall panels can be reduced. In addition, the XPS boards are thin, and during an earthquake, the XPS boards deform and are squeezed, so that the connection between the two wall panels plays a shock-absorbing role.

[0024] Optionally, the inner wall of the mounting groove is provided with a clearance groove, which is connected to the outside; the extension directions of the clearance grooves of the two wall panels are arranged in opposite directions.

[0025] By adopting the above technical solution and setting the avoidance groove, the interference of the connection part with the movement of adjacent wall panels during the installation of two wall panels can be reduced.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting two connecting parts and hooking them together, the connection between the two wall panels is increased, thereby improving the firmness between the two wall panels. In addition, the hooking of the two connecting parts can improve the speed of installation and increase the installation efficiency.

[0028] 2. By setting a snap-fit ​​part and a fixing part, it is easy for the two connecting parts to remain hooked, reducing the possibility of loosening during an earthquake. A rubber sleeve is fitted on the outer wall of the steel bar. The rubber sleeve has the function of energy absorption and shock absorption, thereby improving the shock absorption performance when the two connecting parts are hooked together.

[0029] 3. By setting up a linkage component, the linkage component can make the two fixed parts simultaneously abut against the outer walls of the two fixed plates, improving installation efficiency. After the second U-shaped plate is unhooked, the linkage part can buffer the outward popping force of the second U-shaped plate, reducing the possibility of the second U-shaped plate popping out quickly under the action of the second spring and damaging the connection part. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this embodiment, mainly showing the installation status of the two wall panels;

[0031] Figure 2 This is a schematic diagram of the overall structure of this embodiment, mainly showing the two wall panels in their non-installed state;

[0032] Figure 3 yes Figure 1 A magnified view of a portion at point A;

[0033] Figure 4 This is a partial sectional view of the connection part;

[0034] Figure 5 This is a partial sectional view of the connection from another angle;

[0035] Figure 6 This is a partial cross-sectional view of the linked components;

[0036] Figure 7 yes Figure 1 A magnified view of a portion at point B;

[0037] Figure 8 yes Figure 6 A magnified view of a portion of point C.

[0038] Explanation of reference numerals in the attached drawings: 1. Wall panel; 11. Mounting groove; 12. Clearance groove; 13. Flexible material; 14. Extruded polystyrene board; 15. First torsion spring; 2. Connecting part; 21. Fixing plate; 22. First U-shaped plate; 221. First snap-fit ​​hole; 23. C-shaped plate; 231. Second snap-fit ​​hole; 24. Slide groove; 25. Extension part; 26. Silicone block; 27. Second torsion spring; 3. Snap-fit ​​part; 31. First sleeve; 32. First spring; 33. Steel rod; 34. Rubber sleeve; 4. Fixing assembly; 41. Fixing component; 42. Fixed... 43. Fixed rod; 44. Third locking groove; 45. Second sleeve; 46. Second U-shaped plate; 47. Second locking groove; 5. Connecting groove; 5. Linkage assembly; 51. Third sleeve; 511. Movable groove; 52. Third spring; 53. Drive rod; 531. Positioning ring; 54. Branch pipe; 55. Moving plate; 551. Orientation hole; 552. Waist-shaped hole; 56. Linkage part; 561. Connecting rod; 562. Locking block; 563. First rod; 564. Second rod; 565. Protrusion; 57. Drive plate; 58. Orientation rod. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0040] This application discloses a prefabricated concrete building connection structure.

[0041] Reference Figure 1 and Figure 2 A prefabricated concrete building connection structure includes two connecting parts 2, installed between two wall panels 1. Both wall panels 1 are fixed to the main frame. The inner walls of the two wall panels 1 are provided with mounting grooves 11. The two connecting parts 2 are respectively installed in the two mounting grooves 11. One connecting part 2 is installed on the bottom wall of the mounting groove 11, and the other connecting part 2 is installed on the top wall of the other mounting groove 11. The inner walls of the two mounting grooves 11 are provided with clearance grooves 12. The clearance grooves 12 are opened on the side wall of the mounting groove 11 away from the connecting parts 2. When one wall panel 1 is fixed to the main frame, the other wall panel 1 is installed from top to bottom. The clearance grooves 12 can reduce the interference of the connecting parts 2 with the movement of adjacent wall panels 1.

[0042] Reference Figure 1 After the two connecting parts 2 are hooked together, the gap between the two wall panels 1 is filled with flexible material 13, and the groove walls of the two mounting grooves 11 are fitted with extruded polystyrene boards 14 to prevent the flexible material 13 from entering the mounting grooves 11.

[0043] Reference Figure 3 and Figure 4The connecting part 2 includes a fixing plate 21, a first U-shaped plate 22, and a C-shaped plate 23. An embedded part is provided on the inner wall of the mounting groove 11. The fixing plate 21 is hinged to the embedded part, and a first torsion spring 15 is provided at the hinge point between the fixing plate 21 and the embedded part. In this embodiment, the elastic force of the first torsion spring 15 keeps the fixing plate 21 and the wall panel 1 in the same vertical direction. A first U-shaped plate 22 is integrally formed on the side of the fixing plate 21 away from the mounting groove 11. The U-shaped groove of the first U-shaped plate 22 is located on the side of the first U-shaped plate 22 away from the fixing plate. On one side of 21; a sliding groove 24 is provided on the inner wall of the U-shaped groove of the first U-shaped plate 22, and one side of the C-shaped plate 23 extends outward and is provided as an extension 25. The extension 25 slides in the sliding groove 24, and one side of the C-shaped plate 23 is hinged to the first U-shaped plate 22; a second torsion spring 27 is provided at the hinge point between the C-shaped plate 23 and the first U-shaped plate 22. The elastic force of the second torsion spring 27 causes the extension 25 to be partially located in the U-shaped groove of the first U-shaped plate 22, and the positions of the first U-shaped plate 22 and the C-shaped plate 23 are fixed by the snap-fit ​​part 3.

[0044] Reference Figure 3 The C-shaped plate 23 has a silicone block 26 on its side wall. When the two connecting parts 2 are hooked together, the silicone block 26 fills the gap in the U-shaped groove of the first U-shaped plate 22, thereby improving the stability of the two connecting parts 2 when they are hooked together. In addition, the silicone block 26 has the function of deformation and energy absorption, further improving the shock absorption performance when the two connecting parts 2 are connected.

[0045] Reference Figure 5 The engaging part 3 includes a first sleeve 31, a first spring 32, and a steel rod 33. The outer wall of the steel rod 33 is covered with a rubber sleeve 34. A first engaging hole 221 is provided on the side wall of the first U-shaped plate 22, which communicates with the slide groove 24. A first engaging groove (not shown in the figure) is provided on the side wall of the slide groove 24. The extension part 25 is provided with a second engaging hole 231. The engaging part 3 engages with the first engaging hole 221, the second engaging hole 231, and the first engaging groove. The first sleeve 31 is fixed to the side wall of the first U-shaped plate 22 and is connected to the first engaging hole 221. One end of the first spring 32 is fixed inside the sleeve, and the other end of the first spring 32 is fixed to the steel rod 33.

[0046] When the connecting part 2 is not in a hooked state, the steel rod 33 passes through the first locking hole 221 and abuts against the side wall of the extension. When the two C-shaped plates 23 hook each other, the extension moves within the slide groove 24 and fully enters the slide groove 24, thereby aligning the second locking hole 231 with the first locking hole 221. Under the elastic force of the first spring 32, the steel rod 33 passes through the second locking hole 231 and is locked in the locking groove, thus fixing the C-shaped plate 23 to the position of the first U-shaped plate 22. The rubber sleeve 34 provided on the outer wall of the steel rod 33 absorbs the energy of the two connecting parts 2 when a longitudinal earthquake occurs during an earthquake of the two wall panels 1, thereby reducing the violent vibration of the connecting parts 2 and having the function of shock absorption and energy absorption.

[0047] Reference Figure 6 The inner walls of both mounting slots 11 are provided with fixing components 4. The fixing components 4 include two fixing parts 41. The two fixing parts 41 are located on the side of the mounting slot 11 away from the outside and are spaced apart. One fixing part 41 is used to fix the fixing plate 21 in the same mounting slot 11, and the other fixing part is used to fix the fixing plate 21 in the other mounting slot 11. The fixing part 41 includes a fixing rod 42, a second spring, a second sleeve 44, and a second U-shaped plate 45. The fixing rod 42 is fixed to the inner wall of the mounting slot 11. The second sleeve 44 is sleeved on the fixing rod 42. One end of the second spring (not shown in the figure) is fixed inside the second sleeve 44, and the other end of the second spring is fixed to the end of the fixing rod 42 near the second sleeve 44. In this embodiment, the second spring is a high-elasticity spring. The elasticity of the second spring can make the second sleeve 44 quickly pop out horizontally away from the fixing rod 42. The second U-shaped plate 45 is fixed to the end of the second sleeve 44 away from the fixing rod 42. The fixing part 41 is fixed to the outer wall of the connecting part 2 through the linkage component 5. By setting the fixing component 4, it is easy to fix the second U-shaped plate 45 to the connecting part 2, reducing the possibility of detachment due to left and right swaying when the two connecting parts 2 are hooked together, and providing a supporting function.

[0048] Reference Figure 6The linkage assembly 5 includes a third sleeve 51, a third spring 52, a drive rod 53, a branch pipe 54, a movable plate 55, and two linkage parts 56. The third sleeve 51 is fixed between the two fixed parts 41. The drive rod 53 is movably installed inside the third sleeve 51. One end of the third spring 52 is fixed inside the third sleeve 51, and the other end of the third spring 52 is fixed to the drive rod 53. A positioning ring 531 is fixed to the outer wall of the drive rod 53. A movable groove 511 is opened on the inner wall of the third sleeve 51. The outer diameter of the positioning ring 531 is the same as the inner diameter of the movable groove 511, allowing the positioning ring 531 to move freely within the movable groove 511. The drive rod 53 is moved to reduce the possibility of it disengaging from the third sleeve 51. A drive plate 57 is fixed to the end of the drive rod 53 away from the third sleeve 51. The extension direction of the drive plate 57 is the same as the length direction of the wall panel 1, and the middle of the drive plate 57 is fixed to the drive rod 53. Two linkage parts 56 are respectively hinged to both sides of the drive plate 57, and the linkage parts 56 can be engaged with the outer wall of the second sleeve 44. The two ends of the movable plate 55 are respectively installed on the two linkage parts 56, and the two ends of the branch pipe 54 are respectively hinged to the middle of the first U-shaped plate 22 and the movable plate 55. The branch pipe 54 is made of steel, which reduces the possibility of deformation. During the rotation of the fixed plate 21 along the hinge point between itself and the inner wall of the mounting groove 11, the branch pipe 54 applies pressure to the movable plate 55, causing the movable plate 55 to move away from the branch pipe 54. This allows the linkage parts 56 to release their engagement with the second sleeve, thereby allowing the second U-shaped plate 45 to abut against the outer wall engaged with the fixed plate 21.

[0049] Reference Figure 6 The drive plate 57 is fixed with a directional rod 58, and the moving plate 55 has a directional hole 551. The end of the directional rod 58 away from the drive plate 57 is movably inserted into the directional hole 551. In this embodiment, there are two directional rods 58. By setting the directional rods 58, the directional rods 58 can be moved horizontally, so that the deflection angle of the linkage part 56 is the same.

[0050] Reference Figure 7 and Figure 8The linkage part 56 includes a connecting rod 561, a locking block 562, a first rod 563, and a second rod 564. One end of the connecting rod 561 is hinged to the drive rod 53, and the locking block 562 is rotatably mounted on the connecting rod 561. In this embodiment, the connecting rod 561 is elongated. The second sleeve 44 has a second locking groove 46 and a third locking groove 43 on the side away from the adjacent second sleeve 44. The second locking groove 46 and the third locking groove 43 are spaced apart along the length direction of the second sleeve 44. The shape of the locking block 562 is the same as the shape of the second locking groove 46 and the third locking groove 43. The locking block 562 can be locked from the second locking groove 46 into the third locking groove 43 through the connecting groove 47, which is an arc-shaped groove. The first rod 563 is hinged to the drive plate 57, and the second rod 564 is hinged to the connecting rod 561. The adjacent ends of the first rod 563 and the second rod 564 are hinged together. A protrusion 565 is provided at the hinge point of the first rod 563 and the second rod 564. The moving plate 55 has an oblong hole 552. The extension direction of the oblong hole 552 is the same as the extension direction of the moving plate 55. The protrusion 565 is movably installed in the oblong hole 552.

[0051] During the rotation of the fixed plate 21 along the hinge between itself and the inner wall of the mounting groove 11, the branch pipe 54 applies pressure to the moving plate 55, causing the moving plate 55 to move. Through the linkage transmission, the first rod 563 and the second rod 564 can rotate along the hinge. The connecting rod 561 then rotates along the hinge between itself and the drive rod 53, thereby causing the locking block 562 to disengage from the second locking groove 46. The second sleeve 44 is released from the locking with the linkage part 56, and the second U-shaped plate 45 pops outward. When the fixed plate 21 returns to its original position, the connecting rod 561 can then return to its original position through the linkage transmission and the locking block 562 can be locked into the third locking groove 43 through the connecting groove 47, thereby improving the stability of the second sleeve 44 locked into the fixed plate 21. By setting the connecting groove 47, the elastic force of the second U-shaped plate 45 popping outward can be buffered, reducing the possibility of damage to the connecting part 2.

[0052] The implementation principle of a prefabricated concrete building connection structure according to an embodiment of this application is as follows:

[0053] When two wall panels 1 need to be spliced, the two first U-shaped plates 22 approach each other, and the two C-shaped plates 23 abut against each other, which allows the two fixing plates 21 to rotate along the hinge point between themselves and the inner wall of the mounting groove 11, so that the two C-shaped plates 23 enter the U-shaped groove of the adjacent first U-shaped plate 22. The two C-shaped plates 23 rotate along the hinge point between themselves and the first U-shaped plate 22 and hook each other. At this time, the second snap-fit ​​hole 231 of the extension is aligned with the first snap-fit ​​hole 221, and the steel rod 33 is snapped into the second snap-fit ​​hole 231 under the elastic force of the second spring, thereby fixing the position of the C-shaped plate 23 on the first U-shaped plate 22, increasing the connection between the two wall panels 1, and thus improving the firmness between the two wall panels 1. After the two connecting parts 2 are hooked together, the gap between the two wall panels 1 is filled with flexible material 13, which improves the seismic resistance between the two wall panels 1 and reduces the possibility of wall cracking during an earthquake. In addition, the extruded polystyrene board 14 is thin, and during an earthquake, the extruded polystyrene board 14 deforms and is squeezed, so that the connecting part 2 between the two wall panels 1 plays a shock-absorbing role.

[0054] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be included within the scope of protection of this application.

Claims

1. A prefabricated concrete building connection structure, installed between two wall panels (1), the two wall panels (1) being installed on the main frame, characterized in that: It includes two connecting parts (2), and the two wall panels (1) have mounting grooves (11) on their inner walls. The two connecting parts are respectively installed on the inner walls of the two mounting grooves (11). When the two connecting parts (2) are hooked together, the two connecting parts (2) are fixed together by snap-fit ​​parts (3). The gap between the two wall panels (1) is filled with flexible material (13). The connecting part (2) includes a fixing plate (21), a first U-shaped plate (22), and a C-shaped plate (23). One side of the fixing plate (21) is hinged to the inner wall of the mounting groove (11), and the other side of the fixing plate (21) is fixed to the U-shaped plate. The C-shaped plate (23) is hinged in the U-shaped groove of the U-shaped plate. A first torsion spring (15) is provided at the hinge point between the C-shaped plate (23) and the first U-shaped plate (22). The U-shaped groove of the first U-shaped plate (22) The inner wall is provided with a sliding groove (24), and one side of the C-shaped plate (23) is provided with an extension (25) which slides in the sliding groove (24). The surface of the first U-shaped plate (22) is provided with a first snap-fit ​​hole (221), which is connected to the sliding groove (24). The C-shaped plate (23) is provided with a second snap-fit ​​hole (231), and the snap-fit ​​part (3) is snapped into the first snap-fit ​​hole (221) and the second snap-fit ​​hole (231). The snap-fit ​​part (3) includes a first sleeve (31), a first spring (32) and a steel rod (33). The first sleeve (31) is fixed to the surface of the U-shaped plate. One end of the first spring (32) is fixed inside the sleeve. The other end of the first spring (32) is fixed to the steel rod (33). The steel rod (33) passes through the first snap-fit ​​hole (221) and snaps into the second snap-fit ​​hole (231) under the elastic force of the first spring (32). The outer wall of the steel rod (33) is covered with a rubber sleeve (34).

2. The prefabricated concrete building connection structure according to claim 1, characterized in that: The inner walls of both mounting slots (11) are provided with fixing components (4). The fixing components (4) include two fixing parts (41). The fixing parts (41) include a fixing rod (42), a second spring, a second sleeve (44), and a second U-shaped plate (45). The fixing rod (42) is fixed to the inner wall of the mounting slot (11). The second sleeve (44) is sleeved inside the fixing rod (42). The two ends of the second spring are respectively fixed inside the fixing rod (42) and the second sleeve (44). The second U-shaped plate (45) is fixed to the end of the second sleeve (44) away from the fixing rod (42). The fixing parts (41) can be snapped onto the outer wall of the fixing plate (21) through the linkage component (5).

3. The prefabricated concrete building connection structure according to claim 2, characterized in that: The linkage assembly (5) includes a third sleeve (51), a third spring (52), a drive rod (53), a branch pipe (54), a moving plate (55), and two linkage parts (56). The third sleeve (51) is fixed to the side of the mounting groove (11) near the fixing assembly (4). One end of the third spring (52) is fixed inside the third sleeve (51), and the other end of the third spring (52) is fixed to the drive rod (53). A positioning ring (531) is fixed to the outer wall of the drive rod (53), and the positioning ring (531) is snapped into the third sleeve (51). The two linkage parts (56) are hinged to both ends of the drive rod (53), and the linkage parts (56) can be snapped into the second sleeve (44). The moving plate (55) is installed between the two linkage parts (56), and both ends of the branch pipe (54) are respectively hinged to the moving plate (55) and the first U-shaped plate (22).

4. The prefabricated concrete building connection structure according to claim 3, characterized in that: The linkage (56) includes a connecting rod (561) and a locking block (562), a first rod (563) and a second rod (564). One end of the connecting rod (561) is hinged to the drive rod (53), and the locking block (562) is rotatably mounted on the end of the connecting rod (561) away from the drive rod (53). The second sleeve (44) has a second locking groove (46) and a third locking groove (43). The second locking groove (46) and the third locking groove (43) are spaced apart along the extension direction of the second sleeve (44). The locking block (562) is connected to the second locking part through the connecting groove (47). The slot (46) is engaged in the third engaging slot (43); the first rod (563) is hinged to the drive plate (57), the second rod (564) is hinged to the connecting rod (561), and the adjacent ends of the first rod (563) and the second rod (564) are hinged together; a protrusion (565) is provided at the hinge of the first rod (563) and the second rod (564), and the moving plate (55) is provided with a waist-shaped hole (552), the extension direction of the waist-shaped hole (552) is in the same direction as the delay direction of the drive rod (53), and the protrusion (565) is located in the waist-shaped hole (552) of the moving plate (55).

5. A prefabricated concrete building connection structure according to claim 3, characterized in that: The drive rod (53) is fixed with a guide rod (58), and the moving plate (55) has a guide hole (551), through which the guide rod (58) passes.

6. The prefabricated concrete building connection structure according to claim 1, characterized in that: The C-shaped plate is provided with a silicone block (26), which fills the gap where the U-shaped groove of the first U-shaped plate (22) and the other C-shaped plate (23) are hooked together.

7. A prefabricated concrete building connection structure according to claim 1, characterized in that: Extruded polystyrene board (14) is fixed inside the mounting groove (11) of the two wall panels (1).

8. A prefabricated concrete building connection structure according to claim 1, characterized in that: The inner wall of the mounting groove (11) is provided with a clearance groove (12), which is connected to the outside; the extension directions of the clearance grooves (12) of the two wall panels (1) are opposite.

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