CN216689740U - Double-deck coincide prefabricated outer wall structure of basement - Google Patents

Abstract

The utility model relates to a double-deck coincide of basement prefabricated outer wall structure belongs to building engineering's technical field, and it includes the outer wall body that the multiunit spliced gradually the setting, and the outer wall body includes a pair of prefabricated plate and lays the reinforcing bar between a pair of prefabricated plate, adjacent two be equipped with between the prefabricated plate and be used for connecting the fixed establishment of two butt department, adjacent two prefabricated plate department all pastes and is equipped with the connecting plate, has set firmly a plurality of peg graft poles on the connecting plate, adjacent two all set up on the prefabricated plate and supply the peg graft pole to insert the slot of establishing, be equipped with between peg graft pole and the prefabricated plate and be used for fixing the stop gear in the slot with the peg graft pole. The prefabricated slab connecting structure has the effect of improving the connecting stability between two adjacent prefabricated slabs.

Description

Double-deck coincide prefabricated outer wall structure of basement

Technical Field

The application relates to the technical field of constructional engineering, in particular to a double-layer superposed prefabricated outer wall structure of a basement.

Background

With the rapid development of building engineering technology, the application of prefabricated slabs in buildings is more and more extensive at present; the laminated prefabricated floor slab is a product formed by combining prefabricated slabs and cast-in-place concrete, and consists of two prefabricated slabs and reinforcing steel bars between the two prefabricated slabs.

The existing double-layer superposed prefabricated outer wall structure of the basement comprises a plurality of groups of outer wall bodies which are sequentially spliced and arranged, wherein each outer wall body comprises a pair of prefabricated plates and reinforcing steel bars arranged between the pair of prefabricated plates, and when the structure is constructed on site, the plurality of groups of outer wall bodies are hoisted, and concrete is poured between each pair of prefabricated plates.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that the connection between two adjacent prefabricated panels is not stable, and the joint between two adjacent prefabricated panels is prone to crack or leak.

SUMMERY OF THE UTILITY MODEL

In order to improve the connection stability between two adjacent prefabricated plates, the application provides a double-deck coincide prefabricated outer wall structure of basement.

The application provides a double-deck coincide prefabricated outer wall structure of basement adopts following technical scheme:

the utility model provides a double-deck coincide prefabricated outer wall structure of basement, includes the outer wall body that the multiunit spliced gradually the setting, and the outer wall body includes a pair of prefabricated plate and lays the reinforcing bar between a pair of prefabricated plate, adjacent two be equipped with between the prefabricated plate and be used for connecting the fixed establishment of two butt department, adjacent two prefabricated plate department all pastes and is equipped with the connecting plate, has set firmly a plurality of peg graft poles on the connecting plate, adjacent two all set up on the prefabricated plate and supply the peg graft pole to insert the slot of establishing, be equipped with between peg graft pole and the prefabricated plate and be used for fixing the stop gear in the slot with the peg graft pole.

Through adopting above-mentioned technical scheme, the workman hoists multiunit outer wall body to the basement in proper order, and fixed establishment connects the butt face between per two prefabricated plates, and fixed establishment carries out first fixed to two adjacent prefabricated plates, and stop gear fixes the inserted link in the slot, and the connecting plate pastes and establishes in two adjacent prefabricated plates departments, and stop gear carries out the secondary to two adjacent prefabricated plates and fixes, has improved the leakproofness between two adjacent prefabricated plates, has improved the connection stability between two adjacent prefabricated plates simultaneously.

Optionally, the fixing mechanism includes spacing, is used for connecting the bottom of two adjacent limiting plates fixed lower fixed subassembly to and be used for connecting the top of two adjacent limiting plates fixed last fixed subassembly, and spacing vertically sets firmly on the lateral wall of prefabricated plate butt in adjacent prefabricated plate, vertically sets up the spout that supplies spacing to slide on the adjacent prefabricated plate, and the distance of lower fixed subassembly to the limiting plate bottom equals the distance of last fixed subassembly to the limiting plate top.

Through adopting above-mentioned technical scheme, when outer wall body top-down hoisted, spacing was inserted and is established to the spout in and slide along the length direction of spout, and spacing is injectd the transverse distance of two limiting plates, and lower fixed subassembly is connected fixedly with the bottom of two limiting plates, goes up fixed subassembly and connects the top of two limiting plates fixedly, goes up fixed subassembly and fixes the vertical distance of two limiting plates with lower fixed subassembly and injects, has improved the connection stability between two adjacent prefabricated plates.

Optionally, the lower fixing assembly comprises a lower clamping block and a lower clamping spring, a lower clamping groove for the lower clamping block to slide is formed in a side wall, close to the bottom end of the prefabricated slab, the lower clamping spring is fixedly arranged in the lower clamping groove, the lower clamping spring is fixedly connected with the lower clamping block, a lower limiting groove for the lower clamping block to be inserted is formed in an adjacent limiting plate, and one end, far away from the lower clamping spring, of the lower clamping block is arranged obliquely upwards; when the lower clamping spring is in a natural state, the lower clamping block is simultaneously positioned in the lower clamping groove and the lower limiting groove.

By adopting the technical scheme, after the hoisting of one prefabricated plate is finished, the other prefabricated plate is hoisted, the lower clamping block is abutted against the side wall of the other prefabricated plate, the lower clamping block is pushed into the lower clamping groove by the prefabricated plate, the lower clamping spring is compressed, when the lower limiting groove is opposite to the lower clamping groove, the lower clamping block enters the lower limiting groove, and the lower clamping spring resets, so that the connection stability of the bottoms of the two prefabricated plates is improved.

Optionally, the upper fixing assembly comprises an upper clamping block and an upper clamping spring, an upper clamping groove for the upper clamping block to slide is formed in the side wall, close to the top end of the limiting plate, the upper clamping spring is fixedly arranged in the upper clamping groove, the upper clamping spring is fixedly connected with the upper clamping block, an upper limiting groove for the upper clamping block to insert is formed in the adjacent limiting plate, and one end, far away from the upper clamping spring, of the upper clamping block is arranged in a hemispherical shape; when the upper clamping spring is in a natural state, the upper clamping block is simultaneously positioned in the lower upper clamping groove and the upper limiting groove.

By adopting the technical scheme, the end part of the upper clamping block arranged in a spherical shape reduces the relative abrasion between the upper clamping block and the prefabricated plate, after the hoisting of one prefabricated plate is finished, the other prefabricated plate is hoisted, the fixed block is abutted to the prefabricated plate which is hoisted, the prefabricated plate pushes the upper clamping block into the upper clamping groove, the upper clamping spring is compressed, when the upper limiting groove is opposite to the upper clamping groove, the upper clamping block enters the upper limiting groove, the upper clamping spring resets, and the connection stability of the top ends of the two prefabricated plates is improved.

Optionally, the limiting mechanism includes a limiting rod fixedly arranged at one end of the insertion rod far away from the connecting plate, a limiting assembly used for limiting the limiting rod in the prefabricated plate, and a twisting and clamping assembly used for limiting the insertion rod in the slot, and the side wall of the insertion rod is inclined towards the limiting rod.

Through adopting above-mentioned technical scheme, the prefabricated plate hoist and mount back that finishes, promote the inserted bar and make the gag lever post insert establish to the slot in, spacing subassembly is spacing with the gag lever post in the prefabricated plate, turns round the card subassembly and will insert the pole spacing in the slot, has realized that the connection after the prefabricated plate hoist and mount finishes is fixed, and the connecting plate butt has improved the leakproofness of two prefabricated plate butts in two prefabricated plate junctions simultaneously.

Optionally, the limiting assembly includes a limiting block and a limiting spring, a fixing groove for the limiting block to slide is formed in the slot, the limiting spring is fixed in the fixing groove, the limiting spring is fixedly connected with the limiting block, an insertion groove for the limiting block to be inserted is formed in the limiting rod, and one end of the limiting block, which is far away from the limiting spring, is inclined towards the opening of the slot; when the limiting spring is in a natural state, the limiting block is simultaneously positioned in the fixing groove and the inserting groove.

Through adopting above-mentioned technical scheme, the gag lever post is inserted and is established to the slot in and with stopper looks butt, in the stopper extrudeed the fixed slot, spacing spring compression, when the fixed slot with the grafting groove relative time, the stopper gets into the grafting inslot, spacing spring resets, spacing subassembly has improved the stability of installing between gag lever post and the prefabricated plate.

Optionally, two sets of twisting and clamping assemblies are arranged in each slot, each twisting and clamping assembly comprises a limiting plate and a torsion spring, the limiting plates are hinged in the slots, the torsion springs are fixedly arranged on the inner walls of the slots, and one ends of the torsion springs are fixedly connected with the limiting plates; when two torsional springs all were in natural state, two limiting plate looks butt just set up towards the reinforcing bar.

Through adopting above-mentioned technical scheme, when the gag lever post was inserted and is established to the slot in, gag lever post and two limiting plate looks butt, two torsional springs all take place deformation, when the gag lever post was kept away from the lateral wall looks butt that self offered the mouth with the slot, limiting plate and the lateral wall looks butt of inserted link, and two torsional springs are applyed the effort that makes its be close to each other to the limiting plate respectively, turn round the card subassembly and with the inserted link spacing in the prefabricated plate, have further improved the connection stability of two boards of predetermineeing.

Optionally, a sealing element is fixedly arranged on one side of the connecting plate facing the precast slabs, and the sealing element is attached to the abutting joint of the two precast slabs.

By adopting the technical scheme, the sealing element seals the joint of the two precast slabs, so that the probability that concrete possibly permeates from the joint of the two precast slabs is reduced, and the sealing property of the joint of the two precast slabs is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the multiple groups of outer wall bodies are sequentially hoisted into the underground chamber, the abutting surfaces between every two prefabricated plates are connected through the fixing mechanisms, the inserting rods are fixed in the inserting grooves through the limiting mechanisms, and the connecting plates are attached to the positions of two adjacent prefabricated plates, so that the sealing performance between the two adjacent prefabricated plates is improved, and the connecting stability between the two adjacent prefabricated plates is improved;

2. the limiting strips limit the transverse distance of the two limiting plates, and the upper fixing assembly and the lower fixing assembly limit the vertical distance of the two limiting plates, so that the connection stability between two adjacent prefabricated plates is improved;

3. spacing subassembly is spacing with the gag lever post in the prefabricated plate, turns round the card subassembly and will peg graft the pole spacing in the slot, and it is fixed to have realized the connection after the prefabricated plate hoist and mount finishes, and the connecting plate butt has improved the leakproofness of two prefabricated plate butts in two prefabricated plate junctions simultaneously.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a sectional view showing a stopper mechanism;

fig. 3 is a sectional view showing the fixing mechanism.

In the figure, 1, an outer wall body; 11. prefabricating a slab; 111. a slot; 112. a chute; 113. a lower clamping groove; 114. a lower limiting groove; 115. an upper clamping groove; 116. an upper limiting groove; 117. fixing grooves; 12. reinforcing steel bars; 2. a fixing mechanism; 21. a limiting strip; 22. a lower fixing component; 221. a lower clamping block; 222. a lower clamping spring; 23. an upper fixing assembly; 231. an upper clamping block; 232. an upper clamping spring; 3. a connecting plate; 31. a plug rod; 32. a seal member; 4. a limiting mechanism; 41. a limiting rod; 411. inserting grooves; 42. a limiting component; 421. a limiting block; 422. a limiting spring; 43. a card twisting component; 431. a limiting plate; 432. a torsion spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses double-deck coincide prefabricated outer wall structure of basement.

Referring to fig. 1 and 2, a double-deck coincide prefabricated outer wall structure of basement includes outer wall body 1 that the multiunit spliced in proper order set up, outer wall body 1 includes a pair of prefabricated plate 11 and sets firmly reinforcing bar 12 between a pair of preset board, be equipped with between two adjacent prefabricated plate 11 and be used for the level when splicing two prefabricated plate 11 and vertical fixed mechanism 2 in relative position, fixed mechanism 2 has improved the stability of installing when two adjacent prefabricated plate 11 are installed, the butt department of per two adjacent prefabricated plate 11 all pastes and is equipped with connecting plate 3, all set firmly the inserted bar 31 of two vertical settings on the connecting plate 3, every prefabricated plate 11 deviates from the equal vertical slot 111 of establishing of two confession inserted bar 31 insertions of seting up in one side of reinforcing bar 12, be equipped with between inserted bar 31 and the prefabricated plate 11 and be used for fixing the stop gear 4 in slot 111 with inserted bar 31, stop gear 4 has improved the stability of installing after prefabricated plate 11 finishes.

Referring to fig. 2 and 3, the fixing mechanism 2 includes a limiting bar 21 vertically disposed on one side of the prefabricated panels 11, a lower fixing assembly 22 for fixedly connecting bottom ends of two adjacent prefabricated panels 11, and an upper fixing assembly 23 for fixedly connecting top ends of two adjacent prefabricated panels 11, a distance between the lower fixing assembly 22 and the bottom end of the prefabricated panel 11 is equal to a distance between the upper fixing assembly 23 and the top end of the prefabricated panel 11, a sliding groove 112 for allowing the limiting bar 21 to slide is vertically disposed on a side wall of the adjacent prefabricated panel 11, each prefabricated panel 11 is provided with the lower fixing assembly 22 and the upper fixing assembly 23, and the lower fixing assembly 22 and the upper fixing assembly 23 are respectively disposed on two side walls of the prefabricated panel 11 for splicing.

After one prefabricated slab 11 is installed, the other prefabricated slab 11 is hoisted, the limiting strip 21 is inserted into the sliding groove 112, the limiting strip 21 limits the transverse relative distance between the two prefabricated slabs 11, and the upper fixing assembly 23 and the lower fixing assembly 22 simultaneously limit the vertical relative distance between the two prefabricated slabs 11, so that the installation stability of the two adjacent prefabricated slabs 11 is improved.

Referring to fig. 3, the lower fixing assembly 22 includes a lower clamping block 221 and a lower clamping spring 222, a lower clamping groove 113 for the lower clamping block 221 to slide is transversely formed on the precast slab 11, a lower limiting groove 114 for the lower clamping block 221 to be inserted into is transversely formed on an adjacent precast slab 11, the lower clamping groove 113 and the lower limiting groove 114 are formed at equal heights, one end of the lower clamping spring 222 is fixedly arranged on a side wall of the lower clamping groove 113 far away from the opening of the lower clamping spring, the other end of the lower clamping spring 222 is fixedly connected with the lower clamping block 221, and one end of the lower clamping block 221 departing from the lower clamping spring 222 is arranged obliquely upwards; when the lower catching spring 222 is in a natural state, the lower catching block 221 is simultaneously located in the lower catching groove 113 and the lower limiting groove 114.

After one prefabricated slab 11 is installed, the other prefabricated slab 11 is hoisted from top to bottom, the installed prefabricated slab 11 pushes the lower clamping block 221 into the lower clamping groove 113, the lower clamping spring 222 is compressed, when the lower clamping groove 113 is opposite to the lower limiting groove 114, the lower clamping block 221 enters the lower limiting groove 114, the lower clamping spring 222 recovers deformation, the positions of the bottom ends of the two prefabricated slabs 11 are fixed, and the installation stability of the two prefabricated slabs 11 is improved.

Referring to fig. 3, the upper fixing assembly 23 includes an upper clamping block 231 and an upper clamping spring 232, an upper clamping groove 115 for the upper clamping block 231 to slide is transversely formed on each prefabricated slab 11, an upper limiting groove 116 for the upper clamping block 231 to insert is transversely formed on each adjacent prefabricated slab 11, the upper clamping groove 115 and the upper limiting groove 116 are formed to have the same height, one end of the upper clamping spring 232 is fixedly arranged on the side wall of the upper clamping groove 115, which is far away from the opening of the upper clamping spring 232, the other end of the upper clamping spring 232 is fixedly connected with the upper clamping block 231, and one end of the upper clamping block 231, which is far away from the upper clamping spring 232, is arranged in a hemispherical shape; when the upper clamping spring 232 is in a natural state, the upper clamping block 231 is simultaneously positioned in the upper clamping groove 115 and the upper limiting groove 116.

The hemispherical end part of the upper clamping block 231 reduces the abrasion possibly caused by the friction between the upper clamping block 231 and the precast slab 11, and prolongs the service life of the upper clamping block 231 and the precast slab; one prefabricated plate 11 is completely installed, the other prefabricated plate 11 is hoisted from top to bottom, the installed prefabricated plate 11 pushes the upper clamping block 231 into the lower clamping groove 113, the upper clamping spring 232 is compressed, when the upper clamping groove 115 is opposite to the upper limiting groove 116, the upper clamping block 231 enters the upper limiting groove 116, the upper clamping spring 232 recovers deformation, the positions of the top ends of the two prefabricated plates 11 are fixed, and the installation stability of the two prefabricated plates 11 is improved.

Referring to fig. 2, the limiting mechanism 4 includes a limiting rod 41 and a limiting component 42 for fixing the limiting rod 41 in the slot 111, the limiting rod 41 is fixedly disposed at one end of the insertion rod 31 far away from the connecting plate 3, a side wall of the insertion rod 31 is inclined toward the limiting rod 41, and the limiting mechanism 4 further includes a fastening component 43 for fixing the side wall of the insertion rod 31; two inserting rods 31 fixedly arranged on the connecting plate 3 are simultaneously inserted into the slots 111 formed in the two precast slabs 11, the position of the limiting rod 41 is fixed by the limiting component 42, and the position of the inserting rod 31 is fixed by the twisting and clamping component 43, so that the installation stability after the two adjacent precast slabs 11 are spliced is improved.

Referring to fig. 2, the limiting assembly 42 includes a limiting block 421 and a limiting spring 422, the slot 111 is transversely provided with a fixing groove 117 perpendicular to the side wall of the opening of the slot 111, one end of the limiting spring 422 is fixedly arranged on the side wall of the fixing groove 117 away from the opening of the slot, the other end of the limiting spring 422 is fixedly connected with the limiting block 421, the limiting rod 41 is transversely provided with an insertion groove 411 into which the limiting block 421 is inserted, and one end of the limiting block 421 away from the limiting spring 422 is obliquely arranged toward the opening of the slot 111; when the limiting spring 422 is in a natural state, the limiting block 421 is located in the insertion slot 411 and the fixing slot 117 at the same time.

In inserting the gag lever post 41 into slot 111, the gag lever post 41 pushes away stopper 421 to fixed slot 117 in, and spacing spring 422 compresses, and when inserting groove 411 and fixed slot 117 are relative, stopper 421 get into inserting groove 411 in, and spacing spring 422 resets, and spacing subassembly 42 has improved the stability of being connected of gag lever post 41 and prefabricated plate 11, and then has improved the stability of installing of connecting plate 3.

Referring to fig. 2, two sets of twist-fastening assemblies 43 are disposed in each slot 111, the two sets of twist-fastening assemblies 43 are respectively disposed on two opposite inner walls of the slot 111, each twist-fastening assembly 43 includes a limiting plate 431 hinged on the inner wall of the slot 111, and a torsion spring 432 fixedly disposed on the inner wall of the slot 111, one arm of the torsion spring 432 is fixedly disposed on the inner wall of the slot 111, and the other arm of the torsion spring 432 is fixedly connected to the limiting plate 431; when the torsion springs 432 of the two sets of torsion clamp assemblies 43 are in a natural state, the two limit plates 431 are abutted and arranged away from the opening of the slot 111.

The limiting rod 41 is inserted into the slot 111 and is abutted to the two limiting plates 431, the torsion springs 432 deform, when the limiting rod 41 is abutted to the inner wall of the slot 111 far away from the opening, the limiting plates 431 are attached to the side walls of the inserting rod 31, the two torsion springs 432 respectively apply acting forces close to the two limiting plates 431, the probability that the limiting plates 431 are separated from the slot 111 is reduced, and the mounting stability of the prefabricated plate 11 is improved.

Referring to fig. 2, a sealing member 32 is disposed between the two insertion rods 31, the sealing member 32 is adhered to the side wall of the connecting plate 3, the material of the sealing member 32 may be rubber, and when the insertion rods 31 are fixed in the slots 111, the abutting portions of the sealing member 32 and the two prefabricated plates 11 are adhered to each other, so that the sealing performance between the two prefabricated plates 11 close to each other is improved.

The implementation principle of the double-deck coincide prefabricated outer wall structure of basement of this application embodiment is: after one prefabricated slab 11 is installed, another prefabricated slab 11 is hoisted, the limiting strip 21 is inserted into the sliding groove 112, the limiting strip 21 limits the transverse relative distance between the two prefabricated slabs 11, the prefabricated slab 11 in installation pushes the lower clamping block 221 into the lower clamping groove 113, the lower clamping spring 222 is compressed, when the lower clamping groove 113 is opposite to the lower limiting groove 114, the lower clamping block 221 enters the lower limiting groove 114, the lower clamping spring 222 recovers deformation, the positions of the bottom ends of the two precast slabs 11 are fixed, the precast slabs 11 after being installed push the upper clamping block 231 into the lower clamping groove 113, the upper clamping spring 232 compresses, when the upper clamping groove 115 is opposite to the upper limiting groove 116, the upper clamping block 231 enters the upper limiting groove 116, the upper clamping spring 232 restores to deform, the positions of the top ends of the two prefabricated plates 11 are fixed, and the mounting stability of the two adjacent prefabricated plates 11 during mounting is improved.

The limiting rod 41 is inserted into the slot 111 and is abutted to the two limiting plates 431 simultaneously, the torsion springs 432 deform, when the limiting rod 41 and the slot 111 are far away from the inner wall of the opening of the limiting rod 431 and abutted to the inner wall of the slot 111, the limiting plates 431 are attached to the side walls of the inserting rod 31, the two torsion springs 432 respectively apply acting forces close to the two limiting plates 431, the inserting groove 411 is opposite to the fixing groove 117, the limiting spring 422 resets, the limiting block 421 enters the inserting groove 411, the sealing element 32 is abutted to the prefabricated plates 11, the sealing performance of the joint of the two prefabricated plates 11 is improved, and the mounting stability of the two adjacent prefabricated plates 11 after being mounted is improved.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a double-deck coincide prefabricated outer wall structure of basement, includes outer wall body (1) that the multiunit spliced in proper order set up, outer wall body (1) include a pair of prefabricated plate (11) and lay reinforcing bar (12) between a pair of prefabricated plate (11), its characterized in that: be equipped with between two adjacent prefabricated plate (11) and be used for connecting fixed establishment (2) with the two butt department, two adjacent prefabricated plate (11) department all pastes and is equipped with connecting plate (3), has set firmly a plurality of peg graft poles (31) on connecting plate (3), two adjacent all offer on prefabricated plate (11) and supply peg graft pole (31) to insert slot (111) of establishing, be equipped with between peg graft pole (31) and prefabricated plate (11) and be used for fixing peg graft pole (31) stop gear (4) in slot (111).

2. The double-layer laminated prefabricated basement exterior wall structure according to claim 1, wherein: fixed establishment (2) are including spacing strip (21), be used for connecting fixed lower fixed subassembly (22) with the bottom of two adjacent limiting plate (431), and be used for connecting fixed last fixed subassembly (23) with the top of two adjacent limiting plate (431), spacing strip (21) are vertical to be set firmly on prefabricated plate (11) butt in the lateral wall of adjacent prefabricated plate (11), vertical spout (112) of offering the confession spacing strip (21) and sliding on adjacent prefabricated plate (11), lower fixed subassembly (22) equal to the distance of fixed subassembly (23) to limiting plate (431) top to the distance of limiting plate (431) bottom.

3. The double-layer laminated prefabricated basement exterior wall structure according to claim 2, wherein: the lower fixing assembly (22) comprises a lower clamping block (221) and a lower clamping spring (222), a lower clamping groove (113) for the lower clamping block (221) to slide is formed in the side wall, close to the bottom end of the limiting plate (431), the lower clamping spring (222) is fixedly arranged in the lower clamping groove (113), the lower clamping spring (222) is fixedly connected with the lower clamping block (221), a lower limiting groove (114) for the lower clamping block (221) to be inserted is formed in the adjacent limiting plate (431), and one end, far away from the lower clamping spring (222), of the lower clamping block (221) is arranged obliquely upwards; when the lower clamping spring (222) is in a natural state, the lower clamping block (221) is positioned in the lower clamping groove (113) and the lower limiting groove (114) at the same time.

4. The double-layer laminated prefabricated basement exterior wall structure according to claim 2, wherein: the upper fixing assembly (23) comprises an upper clamping block (231) and an upper clamping spring (232), an upper clamping groove (115) for the upper clamping block (231) to slide is formed in the side wall, close to the top end of the limiting plate (431), the upper clamping spring (232) is fixedly arranged in the upper clamping groove (115), the upper clamping spring (232) is fixedly connected with the upper clamping block (231), an upper limiting groove (116) for the upper clamping block (231) to insert is formed in the adjacent limiting plate (431), and one end, away from the upper clamping spring (232), of the upper clamping block (231) is arranged in a hemispherical shape; when the upper clamping spring (232) is in a natural state, the upper clamping block (231) is simultaneously positioned in the lower upper clamping groove (115) and the upper limiting groove (116).

5. The double-layer laminated prefabricated basement exterior wall structure according to claim 1, wherein: the limiting mechanism (4) comprises a limiting rod (41) fixedly arranged at one end, far away from the connecting plate (3), of the insertion rod (31), a limiting assembly (42) used for limiting the limiting rod (41) in the prefabricated plate (11), and a twisting and clamping assembly (43) used for limiting the insertion rod (31) in the slot (111), and the side wall of the insertion rod (31) is obliquely arranged towards the limiting rod (41).

6. The basement double-layer laminated prefabricated outer wall structure as claimed in claim 5, wherein: the limiting assembly (42) comprises a limiting block (421) and a limiting spring (422), a fixing groove (117) for the limiting block (421) to slide is formed in the slot (111), the limiting spring (422) is fixed in the fixing groove (117), the limiting spring (422) is fixedly connected with the limiting block (421), an insertion groove (411) for the limiting block (421) to be inserted is formed in the limiting rod (41), and one end, far away from the limiting spring (422), of the limiting block (421) is obliquely arranged towards an opening of the slot (111); when the limiting spring (422) is in a natural state, the limiting block (421) is positioned in the fixing groove (117) and the inserting groove (411) at the same time.

7. The basement double-layer laminated prefabricated outer wall structure as claimed in claim 5, wherein: two groups of twisting and clamping assemblies (43) are arranged in each slot (111), each twisting and clamping assembly (43) comprises a limiting plate (431) and a torsion spring (432), each limiting plate (431) is hinged in each slot (111), each torsion spring (432) is fixedly arranged on the inner wall of each slot (111), and one end of each torsion spring (432) is fixedly connected with each limiting plate (431); when the two torsion springs (432) are in a natural state, the two limiting plates (431) are abutted and arranged towards the steel bar (12).

8. The double-layer laminated prefabricated basement exterior wall structure according to claim 1, wherein: and one side of the connecting plate (3) facing the precast slabs (11) is fixedly provided with a sealing element (32), and the joint of the sealing element (32) and the two precast slabs (11) is attached.

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