Outer wall column structure shaped like Chinese character'hui '

Abstract

The invention discloses a concentric-square-shaped outer wall pilaster structure, and relates to the technical field of building construction, the concentric-square-shaped outer wall pilaster structure comprises an outer wall, a pilaster and a polystyrene board, a plurality of sets of connecting devices are installed in the pilaster, and each set of connecting device comprises a first connecting pipe, two second connecting pipes and a third connecting pipe; a countersunk head screw rod is in threaded connection with the interior of the first connecting pipe, a first through hole for the countersunk head screw rod to pass through is formed in the polystyrene board, and one end of the countersunk head screw rod penetrates through the first through hole and then is inserted into an inner cavity of the third connecting pipe; a connecting groove is formed in the countersunk head screw, a first limiting mechanism is installed in the connecting groove, and the first limiting mechanism comprises two second through holes formed in the side wall of the connecting groove, two abutting blocks slidably connected to the two second through holes correspondingly and reset assemblies installed on the side wall of the connecting groove correspondingly and used for driving the two abutting blocks to reset; a driving assembly used for driving the two abutting blocks to move towards the outside of the second through hole is installed in the connecting groove. The stability of the polystyrene board can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a U-shaped exterior wall column structure. Background Art

[0002] Pilasters, also known as brick buttresses or wall buttresses, are masonry columns that protrude from the wall. They are constructed simultaneously with the wall and share the load-bearing function. Their primary functions include increasing the wall's strength and stability and serving as support points for the wall, supporting structures such as roof trusses and beams. Pilasters are tightly connected to the wall, forming a stable and reliable structural system.

[0003] For related technologies, reference may be made to the Chinese utility model patent with authorization announcement number CN204152085U, which discloses a U-shaped exterior wall column structure, including a concrete building structure exterior wall, a pilaster and a polystyrene board, wherein the pilaster includes embedded steel bars, stirrups, vertical force bars and cast-in-place pilaster concrete, wherein one end of the embedded steel bar is embedded in the concrete building structure exterior wall, and the other end is exposed outside the concrete building structure exterior wall and is tied and fixedly connected with the stirrups and vertical force bars to form a U-shaped pilaster steel cage, and the polystyrene board is arranged in the space enclosed by the U-shaped pilaster steel cage and the concrete building structure exterior wall, and the pilaster composed of the pilaster steel cage and the cast-in-place pilaster concrete, together with the polystyrene board and the concrete building structure exterior wall, constitutes a U-shaped exterior wall column structure.

[0004] However, the polystyrene board is only connected to the exterior wall through concrete, and delamination is easily caused between different materials, so the polystyrene board is easily separated from the exterior wall, resulting in poor stability of the polystyrene board. Summary of the Invention

[0005] The present application provides a U-shaped exterior wall column structure that can improve the stability of polystyrene boards, using the following technical solutions: 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The through-hole comprises a first end, and a second end, a screw bolt, and a nut. The bosses comprise a through-hole, a second end, and a second end. The bosses comprise a through-hole, a screw bolt, and a nut.

[0006] By adopting the above scheme, the countersunk screw is first rotated so that one end thereof passes through the first through hole and is connected to the inner cavity of the third connecting tube, and then the abutment block is driven to move outward of the second through hole by the driving assembly, so that the abutment block can abut against the inner wall of the first through hole, thereby improving the stability of the connection between the countersunk screw and the polystyrene board, and thus improving the stability of the polystyrene board; in summary, the provided connecting device can improve the stability of the polystyrene board.

[0007] Preferably, the driving assembly includes a driving plate slidably connected to the inner wall of the connecting groove and two baffles fixedly connected to the inner wall of the connecting groove; a driving spring is arranged between each baffle and the driving plate, and the two ends of the driving spring are respectively fixed to the relative inner sides of the baffle and the driving plate; each of the abutment blocks and the relative inner sides of the driving plate are respectively provided with a first inclined surface, and the two first inclined surfaces match; a third through hole is opened on the outer side wall of one end of the connecting groove, and a countersunk bolt is threadedly connected to the inner wall of the third through hole, and one end of the countersunk bolt abuts against the end of the driving plate away from the abutment block.

[0008] By adopting the above scheme, when it is necessary to drive the abutment block to move out of the second through hole, first rotate the countersunk bolt to move one end of it toward the direction close to the driving plate, and then the countersunk bolt drives the driving plate to move. At this time, the driving plate can drive the abutment block to move out of the second through hole under the action of the first inclined surface; in summary, the set driving assembly facilitates driving the abutment block to move out of the second through hole.

[0009] Preferably, each group of the reset components includes a first reset block fixed to the side of the abutment block away from the driving plate and a first reset spring fixed to one side of the first reset block; one end of the first reset spring away from the first reset block is fixed to the inner wall of the connecting groove.

[0010] By adopting the above scheme, when the abutment block moves out of the second through hole, it drives the first reset block to move, and the movement of the first reset block presses the first reset spring; when the driving plate no longer applies force to the abutment block, the first reset block drives the abutment block to reset under the action of the first reset spring; in summary, the reset assembly provided facilitates the resetting of the abutment block.

[0011] Preferably, a second limiting mechanism is installed in the connecting groove for fixing the countersunk screw to the third connecting tube, and the second limiting mechanism includes a fourth through hole opened on the side wall of the connecting groove, an insert block slidably connected to the inner wall of the fourth through hole, and a transmission assembly installed on the inner wall of the connecting groove for moving the insert block; an annular slot is opened on the inner wall of the third connecting tube, and the insert block is inserted into the annular slot.

[0012] By adopting the above solution, when it is necessary to connect the countersunk screw with the third connecting tube, the plug block is first driven to move out of the fourth through hole through the transmission assembly. The plug block moves out of the fourth through hole and can be plugged into the annular slot, so that the countersunk screw can be connected to the third connecting tube; in summary, the second limiting mechanism set up can connect the countersunk screw with the third connecting tube, which can further improve the stability of the polystyrene board.

[0013] Preferably, the transmission assembly includes a fixed plate fixed to the inner wall of the connecting groove, a screw rotatably connected to the fixed plate, a movable plate threadedly connected to the screw, and a driving member installed on the inner wall of the connecting groove for driving the screw to rotate; a connecting rod is hinged between the movable plate and the plug block; a first sliding sleeve is fixed to the inner wall of the connecting groove, a first guide rod is slidingly connected in the first sliding sleeve, and one end of the first guide rod is fixed to one side of the movable plate.

[0014] By adopting the above solution, when it is necessary to drive the plug block to move, the lead screw is first driven by the driving member to rotate, the lead screw rotation drives the moving plate to move, the movement of the moving plate drives the connecting rod to move, and the movement of the connecting rod can drive the plug block to move; in summary, the transmission assembly set up facilitates driving the plug block to move.

[0015] Preferably, the driving member includes a push plate slidingly connected to the inner wall of the connecting groove, a driving rod fixed to one end of the push plate close to the screw, and a rotating tube fixed to one end of the screw close to the push plate; a support spring is fixed between the push plate and the fixed plate; a plurality of spiral blocks are fixed to the side wall of the driving rod, and a plurality of spiral grooves are provided on the inner wall of the rotating tube, and the plurality of spiral blocks are matched with the plurality of spiral grooves in a one-to-one correspondence; a push rod is fixed to one end of the driving plate close to the push plate, and an end of the push rod away from the driving plate abuts against the side of the push plate close to the driving plate.

[0016] By adopting the above scheme, when the driving plate moves under the action of the countersunk bolt, it drives the push rod to move, the push rod moves to drive the push plate, and the push plate moves to drive the driving rod to move. At this time, the driving rod drives the rotating tube to rotate under the action of the spiral block and the spiral groove, and the rotation of the rotating tube can drive the lead screw to rotate; in summary, the driving member provided is convenient for driving the lead screw to rotate.

[0017] Preferably, each of the second connecting tubes is equipped with a connecting mechanism for connecting the polystyrene board, the connecting mechanism comprising a branch pipe prefabricated in the wall column and connected to the second connecting tube, a connecting plate slidably connected to the inner wall of the branch pipe, and a driving assembly installed on the inner wall of the second connecting tube for driving the connecting plate to move; a groove is prefabricated on one side of the polystyrene board, and one end of the connecting plate is inserted into the groove.

[0018] By adopting the above solution, the connecting plate is first driven to move outside the branch pipe by the driving assembly, so that the connecting plate can be plugged into the groove, thereby further improving the stability of the polystyrene board; in summary, the set connecting mechanism can further improve the stability of the polystyrene board.

[0019] Preferably, the driving assembly includes a fifth through hole opened in the inner wall of the first connecting tube and a first driving plate slidably connected to the fifth through hole; an annular plate is fixedly connected to the outer wall of the countersunk screw, and a second inclined surface is provided at one end of the first driving plate close to the annular plate, and the second inclined surface matches the side wall of the annular plate; a second sliding sleeve is fixedly connected to the inner wall of the second connecting tube, a protrusion is fixedly connected to one side of the first driving plate, a second guide rod is fixedly connected to one side of the protrusion, the second guide rod is slidably connected to the second sliding sleeve, and a second return spring is provided between the second sliding sleeve and the protrusion; the second driving plate is slidably connected in the second connecting tube, and the first driving plate A third inclined surface is provided between the second drive plate and the second displacement plate, and the two third inclined surfaces match each other; a third sliding sleeve is fixedly connected to the inner wall of the second connecting tube, a slider is fixedly connected to one side of the second drive plate, a third guide rod is fixedly connected to one side of the slider, the third guide rod is slidably connected to the third sliding sleeve, and a third return spring is provided between the third sliding sleeve and the slider; a fourth inclined surface is provided between the second drive plate and the connecting plate, and the two fourth inclined surfaces match each other; a second return block is fixedly connected to the top of the connecting plate, a fourth return spring is fixedly connected to one side of the second return block, and an end of the fourth return spring away from the second return block is fixed to the inner wall of the second connecting tube.

[0020] By adopting the above scheme, the movement of the countersunk screw drives the annular plate to move, and then the annular plate drives the first drive plate to move into the second connecting tube under the action of the second inclined surface, and then the first drive plate drives the second drive plate to move into the second connecting tube under the action of the third inclined surface, and then the second drive plate drives the connecting plate to move toward the direction close to the groove under the action of the third inclined surface, thereby driving the connecting plate to move; in summary, the provided drive assembly facilitates the driving of the connecting plate to move.

[0021] In summary, this application has the following beneficial effects: 1. First, by rotating the countersunk screw so that one end thereof passes through the first through-hole and is connected to the inner cavity of the third connecting tube, the abutment block is driven to move outward from the second through-hole by the driving assembly, so that the abutment block can abut against the inner wall of the first through-hole, thereby improving the stability of the connection between the countersunk screw and the polystyrene board, and thus improving the stability of the polystyrene board; in summary, the provided connection device can improve the stability of the polystyrene board; 2. When the countersunk screw needs to be connected to the third connecting tube, the drive assembly first drives the insert block to move outward from the fourth through hole. The insert block moves outward from the fourth through hole and engages with the annular slot, thereby connecting the countersunk screw to the third connecting tube. In summary, the provision of the second limiting mechanism enables the countersunk screw to be connected to the third connecting tube, thereby further improving the stability of the polystyrene board. 3. First, the connecting plate is driven to move outward from the branch pipe by the driving assembly, so that the connecting plate can be plugged into the groove, thereby further improving the stability of the polystyrene board; in summary, the connection mechanism provided can further improve the stability of the polystyrene board. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a structural diagram highlighting the connecting device in an embodiment of the present application; Figure 3 This is a structural diagram highlighting the first limiting mechanism and the second limiting mechanism in the embodiment of the present application; Figure 4 This is a structural diagram highlighting the connection between the driving rod and the rotating tube in an embodiment of the present application; Figure 5 This is a structural diagram highlighting the connection mechanism in an embodiment of the present application.

[0023] 1. First through hole; 2. Second through hole; 3. Third through hole; 4. Connecting device; 5. First connecting pipe; 6. Second connecting pipe; 7. Third connecting pipe; 8. Countersunk screw; 9. Connecting groove; 10. First limiting mechanism; 11. Second through hole; 12. Abutment block; 13. Driving assembly; 14. Driving plate; 15. Baffle; 16. Driving spring; 17. First inclined plane; 18. Third through hole; 19. Countersunk bolt; 20. Reset assembly; 21. First reset block; 22. First reset spring; 23. Second limiting mechanism; 24. Fourth through hole; 25. Insert block; 26. Annular slot; 27. Transmission assembly; 28. Fixed plate; 29. ​​Lead screw; 30. Moving plate; 31. Connecting rod; 32. Connecting rod; 33. First through hole; 34. Second through hole; 35. Third through hole; 36. Countersunk bolt; 37. Reset assembly; 38. First reset block; 39. First reset spring; 40. Second limiting mechanism; 41. Fourth through hole; 42. Insert block; 43. Annular slot; 44. Transmission assembly; 45. Fixed plate; 46. Lead screw; 47. Moving plate; 48. Connecting rod; 49. a sliding sleeve; 646, a first guide rod; 65, a driving member; 651, a push plate; 652, a driving rod; 653, a rotating tube; 654, a supporting spring; 655, a spiral block; 656, a spiral groove; 657, a pushing rod; 7, a connecting mechanism; 71, a branch pipe; 72, a connecting plate; 8, a driving assembly; 81, a fifth through hole; 82, a first driving plate; 821, a second inclined surface; 822, a protrusion; 823, a second guide rod; 83, an annular plate; 84, a second sliding sleeve; 841, a second return spring; 85, a second driving plate; 851, a third inclined surface; 852, a slider; 853, a third guide rod; 854, a fourth inclined surface; 86, a third sliding sleeve; 861, a third return spring; 87, a second return block; 88, a fourth return spring; 9, a sink; 91, a cover plate; 92, a block; 93, a slot. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-5 This application is described in further detail.

[0025] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0026] This application discloses a U-shaped exterior wall column structure, such as Figure 1 As shown, it includes an exterior wall 1, pilasters 2 and polystyrene boards 3. Multiple groups of connecting devices 4 for connecting the polystyrene boards 3 are installed in the pilasters 2.

[0027] like Figure 1-Figure 3As shown, each set of connecting devices 4 includes a first connecting tube 41 prefabricated in the wall column 2, two second connecting tubes 42 prefabricated in the wall column 2 and respectively located on both sides of the first connecting tube 41, and a third connecting tube 43 prefabricated on one side of the exterior wall 1; the first connecting tube 41 is internally threaded with a countersunk screw 44, and a first through hole 31 for the countersunk screw 44 to pass through is opened in the polystyrene board 3, one end of the countersunk screw 44 passes through the first through hole 31 and is inserted into the inner cavity of the third connecting tube 43; the countersunk screw 44 is connected to the inner thread of the first connecting tube 41, and the first through hole 31 is opened in the polystyrene board 3. A connecting slot 441 is defined within the rod 44, within which a first limiting mechanism 5 is mounted. The first limiting mechanism 5 comprises two second through-holes 51 defined in the sidewalls of the connecting slot 441, two abutting blocks 52 slidably connected to the two second through-holes 51, and a reset assembly 54 mounted on the sidewalls of the connecting slot 441 for driving the two abutting blocks 52 to reset. A driving assembly 53 is mounted within the connecting slot 441 for driving the two abutting blocks 52 to move outward from the second through-holes 51. The countersunk screw 44 is first rotated so that one end passes through the first through-hole 31 and connects to the inner cavity of the third connecting tube 43. The abutting blocks 52 are then driven outward from the second through-hole 51 by the driving assembly 53, thereby enabling the abutting blocks 52 to abut against the inner wall of the first through-hole 31, thereby improving the stability of the connection between the countersunk screw 44 and the polystyrene board 3 and thereby improving the stability of the polystyrene board 3. In summary, the provided connecting device 4 can improve the stability of the polystyrene board 3.

[0028] like Figure 2-Figure 3 As shown, the driving assembly 53 includes a driving plate 531 that is connected to the inner wall of the connecting groove 441 by sliding along the axial direction of the countersunk screw 44, and two baffles 532 that are fixed to the inner wall of the connecting groove 441; a driving spring 533 is arranged between each baffle 532 and the driving plate 531, and the driving spring 533 is arranged along the axial direction of the countersunk screw 44, and the two ends of the driving spring 533 are respectively fixed to the opposite inner sides of the baffle 532 and the driving plate 531; each abutment block 52 and the opposite inner side of the driving plate 531 are respectively provided with a first inclined surface 534, and the two first inclined surfaces 534 match; a third through hole 535 is opened on the outer wall of one end of the connecting groove 441, and a countersunk bolt 536 is connected to the inner thread of the third through hole 535, and one end of the countersunk bolt 536 abuts against the end of the driving plate 531 away from the abutment block 52. When it is necessary to drive the abutment block 52 to move outward from the second through hole 51, first rotate the countersunk bolt 536 to move one end thereof toward the direction close to the driving plate 531, and then the countersunk bolt 536 drives the driving plate 531 to move. At this time, the driving plate 531 can drive the abutment block 52 to move outward from the second through hole 51 under the action of the first inclined surface 534; in summary, the driving assembly 53 is provided to facilitate driving the abutment block 52 to move outward from the second through hole 51.

[0029] like Figure 2-Figure 3As shown, each reset assembly 54 includes a first reset block 541 fixed to the side of the abutment block 52 away from the drive plate 531, and a first reset spring 542 fixed to the side of the first reset block 541. The first reset spring 542 is arranged along the radial direction of the countersunk screw 44, and one end of the first reset spring 542 away from the first reset block 541 is fixed to the inner wall of the connecting groove 441. When the abutment block 52 moves outward from the second through hole 51, it drives the first reset block 541 to move, and the movement of the first reset block 541 presses against the first reset spring 542. When the drive plate 531 no longer applies force to the abutment block 52, the first reset block 541, under the action of the first reset spring 542, drives the abutment block 52 to reset. In summary, the reset assembly 54 facilitates the reset of the abutment block 52.

[0030] like Figure 2-Figure 3 As shown, a second limiting mechanism 6 is installed in the connecting groove 441 for securing the countersunk screw 44 to the third connecting tube 43. The second limiting mechanism 6 includes a fourth through-hole 61 defined in the sidewall of the connecting groove 441, an insert 62 that slides along the axial direction of the countersunk screw 44 and is connected to the inner wall of the fourth through-hole 61, and a transmission assembly 64 installed on the inner wall of the connecting groove 441 for moving the insert 62. An annular slot 63 is defined in the inner wall of the third connecting tube 43, into which the insert 62 is inserted. When the countersunk screw 44 needs to be connected to the third connecting tube 43, the insert 62 is first driven outward from the fourth through-hole 61 by the transmission assembly 64. The insert 62 then moves outward and engages with the annular slot 63, thereby connecting the countersunk screw 44 to the third connecting tube 43. In summary, the second limiting mechanism 6 enables the countersunk screw 44 to be connected to the third connecting tube 43, thereby further improving the stability of the polystyrene board 3.

[0031] like Figure 2-Figure 3 As shown, the transmission assembly 64 includes a fixed plate 641 fixed to the inner wall of the connecting groove 441, a lead screw 642 rotatably connected to the fixed plate 641 via a bearing, a movable plate 643 threadedly connected to the lead screw 642, and a driving member 65 mounted on the inner wall of the connecting groove 441 for driving the lead screw 642 to rotate. A connecting rod 644 is hingedly connected between the movable plate 643 and the insert 62. A first sliding sleeve 645 is fixed to the inner wall of the connecting groove 441, and a first guide rod 646 is slidably connected within the first sliding sleeve 645. One end of the first guide rod 646 is fixed to one side of the movable plate 643. When the insert 62 needs to be driven to move, the lead screw 642 is first driven to rotate by the driving member 65. The rotation of the lead screw 642 drives the movable plate 643 to move. The movement of the movable plate 643 drives the connecting rod 644 to move. The movement of the connecting rod 644 drives the insert 62 to move. In summary, the transmission assembly 64 facilitates the movement of the insert 62.

[0032] like Figure 3-Figure 4As shown, the driving member 65 includes a push plate 651 that is connected to the inner wall of the connecting groove 441 along the axial sliding of the countersunk screw 44, a driving rod 652 that is fixed to one end of the push plate 651 near the screw 642, and a rotating tube 653 that is fixed to one end of the screw 642 near the push plate 651; a support spring 654 is fixed between the push plate 651 and the fixed plate 641; a plurality of spiral blocks 655 are fixed to the side wall of the driving rod 652, and a plurality of spiral grooves 656 are provided on the inner wall of the rotating tube 653, and the plurality of spiral blocks 655 are matched with the plurality of spiral grooves 656 in a one-to-one manner; a push rod 657 is fixed to one end of the driving plate 531 near the push plate 651, and an end of the push rod 657 away from the driving plate 531 abuts against the side of the push plate 651 near the driving plate 531. When the driving plate 531 moves under the action of the countersunk bolt 536, it drives the push rod 657 to move, and the push rod 657 drives the push plate 651 to move, and the push plate 651 drives the driving rod 652 to move. At this time, the driving rod 652 drives the rotating tube 653 to rotate under the action of the spiral block 655 and the spiral groove 656, and the rotation of the rotating tube 653 can drive the screw 642 to rotate; in summary, the driving member 65 is provided to facilitate driving the screw 642 to rotate.

[0033] like Figure 2 and Figure 5 As shown, each second connecting tube 42 is equipped with a connecting mechanism 7 for connecting the polystyrene board 3. The connecting mechanism 7 includes a branch tube 71 prefabricated in the wall column 2 and connected to the second connecting tube 42, a connecting plate 72 slidably connected to the inner wall of the branch tube 71, and a driving assembly 8 installed on the inner wall of the second connecting tube 42 for driving the connecting plate 72 to move. A groove 32 is prefabricated on one side of the polystyrene board 3, and one end of the connecting plate 72 is inserted into the groove 32. The connecting plate 72 is first driven by the driving assembly 8 to move outward from the branch tube 71, so that the connecting plate 72 can be inserted into the groove 32, thereby further improving the stability of the polystyrene board 3. In summary, the provided connecting mechanism 7 can further improve the stability of the polystyrene board 3.

[0034] like Figure 5As shown, the drive assembly 8 includes a fifth through hole 81 opened on the inner wall of the first connecting tube 41 and a first drive plate 82 slidably connected to the fifth through hole 81; an annular plate 83 is fixedly connected to the outer wall of the countersunk screw 44, and a second inclined surface 821 is provided at one end of the first drive plate 82 close to the annular plate 83, and the second inclined surface 821 matches the side wall of the annular plate 83; a second sliding sleeve 84 is fixedly connected to the inner wall of the second connecting tube 42, a protrusion 822 is fixedly connected to one side of the first drive plate 82, a second guide rod 823 is fixedly connected to one side of the protrusion 822, the second guide rod 823 is slidably connected to the second sliding sleeve 84, and a second return spring 841 is provided between the second sliding sleeve 84 and the protrusion 822; a second drive plate 85 is slidably connected to the second connecting tube 42, and the first drive plate 82 is slidably connected to the second drive plate 85. A third inclined surface 851 is provided between the second drive plates 85, and the two third inclined surfaces 851 match each other; a third sliding sleeve 86 is fixedly connected to the inner wall of the second connecting tube 42, a slider 852 is fixedly connected to one side of the second drive plate 85, a third guide rod 853 is fixedly connected to one side of the slider 852, the third guide rod 853 is slidingly connected to the third sliding sleeve 86, and a third return spring 861 is provided between the third sliding sleeve 86 and the slider 852; a fourth inclined surface 854 is provided between the second drive plate 85 and the connecting plate 72, and the two fourth inclined surfaces 854 match each other; a second return block 87 is fixedly connected to the top of the connecting plate 72, a fourth return spring 88 is fixedly connected to one side of the second return block 87, and the end of the fourth return spring 88 away from the second return block 87 is fixedly connected to the inner wall of the second connecting tube 42. The movement of the countersunk screw 44 drives the annular plate 83 to move, and then the annular plate 83 drives the first drive plate 82 to move into the second connecting tube 42 under the action of the second inclined surface 821. Then, the first drive plate 82 drives the second drive plate 85 to move into the second connecting tube 42 under the action of the third inclined surface 851. Subsequently, the second drive plate 85 drives the connecting plate 72 to move toward the direction close to the groove 32 under the action of the third inclined surface 851, thereby driving the connecting plate 72 to move. In summary, the drive assembly 8 is provided to facilitate driving the connecting plate 72 to move.

[0035] like Figure 5 As shown, a recessed groove 9 is formed at one end of the first connecting tube 41, into which a cover plate 91 is secured. Multiple clamping blocks 92 are fixedly secured to one end of the cover plate 91. Multiple clamping slots 93 are formed within the recessed groove 9, and the multiple clamping blocks 92 are correspondingly secured to the multiple clamping slots 93. The cover plate 91 is provided to conveniently shield the end of the first connecting tube 41.

[0036] Working principle: first, rotate the countersunk screw 44 so that one end of it passes through the first through hole 31 and is connected to the inner cavity of the third connecting tube 43, then rotate the countersunk bolt 536 to move one end of it toward the direction close to the driving plate 531, and then the countersunk bolt 536 drives the driving plate 531 to move. At this time, the driving plate 531 drives the abutment block 52 to move outward from the second through hole 51 under the action of the first inclined surface 534, so that the abutment block 52 can abut against the inner wall of the first through hole 31, thereby improving the stability of the connection between the countersunk screw 44 and the polystyrene board 3, and thus improving the stability of the polystyrene board 3; in summary, the provided connecting device 4 can improve the stability of the polystyrene board 3.

[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A U-shaped exterior wall column structure, comprising an exterior wall (1), a wall column (2) and a polystyrene board (3), characterized in that: A plurality of connecting devices (4) for connecting the polystyrene board (3) are installed in the wall column (2), and each group of the connecting devices (4) includes a first connecting pipe (41) prefabricated in the wall column (2), two second connecting pipes (42) prefabricated in the wall column (2) and respectively located on both sides of the first connecting pipe (41), and a third connecting pipe (43) prefabricated on one side of the exterior wall (1); the first connecting pipe (41) is internally threadedly connected with a countersunk screw (44), and a first through hole (31) for the countersunk screw (44) to pass through is provided in the polystyrene board (3), and one end of the countersunk screw (44) passes through the first through hole (31) and is inserted into the wall column (2). The inner cavity of the third connecting tube (43); a connecting groove (441) is provided in the countersunk screw (44), a first limiting mechanism (5) is installed in the connecting groove (441), and the first limiting mechanism (5) includes two second through holes (51) provided on the side wall of the connecting groove (441), two abutting blocks (52) respectively slidably connected to the two second through holes (51), and a reset assembly (54) respectively installed on the side wall of the connecting groove (441) for driving the two abutting blocks (52) to reset; a driving assembly (53) is installed in the connecting groove (441) for driving the two abutting blocks (52) to move out of the second through holes (51).

2. The U-shaped exterior wall column structure according to claim 1, characterized in that: The driving assembly (53) comprises a driving plate (531) slidably connected to the inner wall of the connecting groove (441) and two baffles (532) fixedly connected to the inner wall of the connecting groove (441); a driving spring (533) is provided between each baffle (532) and the driving plate (531), and two ends of the driving spring (533) are respectively fixedly connected to the opposite inner sides of the baffle (532) and the driving plate (531); each abutting block (52) and the opposite inner side of the driving plate (531) are respectively provided with a first inclined surface (534), and the two first inclined surfaces (534) match each other; a third through hole (535) is provided on the outer wall of one end of the connecting groove (441), and a countersunk bolt (536) is connected to the inner thread of the third through hole (535), and one end of the countersunk bolt (536) abuts against the end of the driving plate (531) away from the abutting block (52).

3. The U-shaped exterior wall column structure according to claim 2, characterized in that: Each set of the reset components (54) comprises a first reset block (541) fixed to a side of the abutment block (52) away from the driving plate (531) and a first reset spring (542) fixed to a side of the first reset block (541); one end of the first reset spring (542) away from the first reset block (541) is fixed to the inner wall of the connecting groove (441).

4. The U-shaped exterior wall column structure according to claim 2, characterized in that: A second limiting mechanism (6) for fixing the countersunk screw (44) to the third connecting tube (43) is installed in the connecting groove (441). The second limiting mechanism (6) includes a fourth through hole (61) provided on the side wall of the connecting groove (441), an insert (62) slidably connected to the inner wall of the fourth through hole (61), and a transmission assembly (64) installed on the inner wall of the connecting groove (441) for moving the insert (62). An annular slot (63) is provided on the inner wall of the third connecting tube (43), and the insert (62) is inserted into the annular slot (63).

5. The U-shaped exterior wall column structure according to claim 4, characterized in that: The transmission assembly (64) includes a fixed plate (641) fixedly connected to the inner wall of the connecting groove (441), a screw (642) rotatably connected to the fixed plate (641), a movable plate (643) threadedly connected to the screw (642), and a driving member (65) installed on the inner wall of the connecting groove (441) for driving the screw (642) to rotate; a connecting rod (644) is hinged between the movable plate (643) and the insert (62); a first sliding sleeve (645) is fixedly connected to the inner wall of the connecting groove (441), a first guide rod (646) is slidably connected in the first sliding sleeve (645), and one end of the first guide rod (646) is fixedly connected to one side of the movable plate (643).

6. The U-shaped exterior wall column structure according to claim 5, characterized in that: The driving member (65) comprises a push plate (651) slidably connected to the inner wall of the connecting groove (441), a driving rod (652) fixed to one end of the push plate (651) close to the lead screw (642), and a rotating tube (653) fixed to one end of the lead screw (642) close to the push plate (651); a supporting spring (654) is fixed between the push plate (651) and the fixed plate (641); a supporting spring (654) is fixed to the side wall of the driving rod (652) A plurality of spiral blocks (655) are provided on the inner wall of the rotating tube (653), and the plurality of spiral blocks (655) are matched with the plurality of spiral grooves (656) in a one-to-one correspondence; a push rod (657) is fixedly connected to one end of the driving plate (531) close to the push plate (651), and an end of the push rod (657) away from the driving plate (531) abuts against one side of the push plate (651) close to the driving plate (531).

7. The U-shaped exterior wall column structure according to claim 1, characterized in that: Each of the second connecting tubes (42) is provided with a connecting mechanism (7) for connecting the polystyrene board (3), the connecting mechanism (7) comprising a branch tube (71) prefabricated in the wall column (2) and connected to the second connecting tube (42), a connecting plate (72) slidably connected to the inner wall of the branch tube (71), and a driving assembly (8) installed on the inner wall of the second connecting tube (42) for driving the connecting plate (72) to move; a groove (32) is prefabricated on one side of the polystyrene board (3), and one end of the connecting plate (72) is plugged into the groove (32).

8. The U-shaped exterior wall column structure according to claim 7, characterized in that: The driving assembly (8) includes a fifth through hole (81) provided on the inner wall of the first connecting tube (41) and a first driving plate (82) slidably connected to the fifth through hole (81); an annular plate (83) is fixedly connected to the outer wall of the countersunk screw (44); a second inclined surface (821) is provided at one end of the first driving plate (82) close to the annular plate (83), and the second inclined surface (821) matches the side wall of the annular plate (83); the inner wall of the second connecting tube (42) A second sliding sleeve (84) is fixedly connected, a protrusion (822) is fixedly connected to one side of the first driving plate (82), a second guide rod (823) is fixedly connected to one side of the protrusion (822), the second guide rod (823) is slidingly connected to the second sliding sleeve (84), a second return spring (841) is provided between the second sliding sleeve (84) and the protrusion (822); a second driving plate (85) is slidingly connected in the second connecting tube (42), the first driving plate (82) and A third inclined surface (851) is provided between the second driving plates (85), and the two third inclined surfaces (851) match each other; a third sliding sleeve (86) is fixedly connected to the inner wall of the second connecting tube (42); a slider (852) is fixedly connected to one side of the second driving plate (85); a third guide rod (853) is fixedly connected to one side of the slider (852); the third guide rod (853) is slidably connected to the third sliding sleeve (86); the third sliding sleeve (86) and the slider (852) are connected to each other. A third return spring (861) is provided between the second driving plate (85) and the connecting plate (72); a fourth inclined surface (854) is provided between the second driving plate (85) and the connecting plate (72), and the two fourth inclined surfaces (854) match each other; a second return block (87) is fixedly connected to the top of the connecting plate (72), a fourth return spring (88) is fixedly connected to one side of the second return block (87), and one end of the fourth return spring (88) away from the second return block (87) is fixedly connected to the inner wall of the second connecting pipe (42).

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