Method for mounting and connecting prefabricated panels PC

Abstract

The application discloses a mounting and connecting method of prefabricated slab PC, 1) prefabricated slab PC, 2) installation area preparation, 3) hoisting, 5) pouring, 6) wall column steel bar binding between adjacent prefabricated slabs PC is carried out, and wall column formwork is installed, and wall column pouring and forming are completed; 7) dismounting and positioning support device; the application has the advantages of convenient support, enhanced structural strength of the prefabricated slab PC and the ground of the installation area, reduced probability of the prefabricated slab PC from toppling in the installation area, convenient position adjustment of the prefabricated slab PC and accurate positioning.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of precast board, and particularly relates to a precast board PC mounting and connecting method and a preparation method thereof. BACKGROUND

[0002] PC is an English abbreviation of precast concrete, and is referred to as a PC component in the field of residential industrialization. Unlike traditional cast-in-situ concrete which needs to be molded, poured and maintained on site, the PC component is processed and produced in a factory through a standardized and mechanized mode. Compared with cast-in-situ concrete, the PC component has a safer construction environment, better quality control, higher production efficiency, lower cost and reduced environmental pollution in site construction, and is widely used in the fields of building, transportation, water conservancy and the like.

[0003] The construction method of the PC component at the present stage mainly includes the following steps: 1, precast PC component; 2, PC component hoisting and positioning, and installation of supporting structure; 3, wall column steel bar binding, wall column formwork installation and wall column pouring and forming. When the PC component building is constructed, the PC components of one layer are usually pre-installed, and the supporting structure is removed after the wall column steel bar is poured and formed. The supporting structure of the PC component is generally a double supporting structure.

[0004] The prior art in the above has the following defects: the space occupied by the above bracket is large, and when the brackets corresponding to the PC components of one layer are all installed, the subsequent process is not facilitated due to the large space occupied by the bracket. SUMMARY

[0005] The present application provides a precast board PC mounting and connecting method.

[0006] The scheme of the present application is as follows:

[0007] The precast board PC mounting and connecting method comprises the following steps:

[0008] 1) The bottom of the main prefabricated plate PC is embedded with a plurality of positioning ribs, the top of the main prefabricated plate PC is provided with inverted round table-shaped grooves at both ends, the top of the main prefabricated plate PC is provided with a plurality of fixed hole grooves between the two inverted round table-shaped grooves, the top of the main prefabricated plate PC is provided with a first pouring hole on one side in communication with the bottom of the fixed hole groove, the bottom of the inverted round table-shaped groove is provided with an extension hole groove, and the top of the main prefabricated plate PC is provided with a first communication hole on one side in communication with the bottom of the extension hole groove; further comprising an auxiliary prefabricated plate PC, the bottom of the auxiliary prefabricated plate PC is provided with an inverted round table-shaped connecting rod, the protruding part of the inverted round table-shaped connecting rod matches the inverted round table-shaped groove, the bottom of the auxiliary prefabricated plate PC between the inverted round table-shaped connecting rods is provided with a plurality of communication hole channels, the communication hole channels are provided with plug-in ribs, the plug-in ribs extend out of the communication hole channels and match the fixed hole grooves; the bottom of the inverted round table-shaped connecting rod is provided with a communication channel, the communication channel extends into the tail of the inverted round table-shaped connecting rod, the tail of the inverted round table-shaped connecting rod is located in the auxiliary prefabricated plate PC, one side of the auxiliary prefabricated plate PC is provided with a second communication hole in communication with the communication channel, and one side of the auxiliary prefabricated plate PC is provided with a second pouring hole in communication with the top of the communication hole channel;

[0009] 2) Installation area preparation, a fixed platform matched with the positioning rib is arranged in the installation area of the main prefabricated plate PC, a fixed insertion slot is arranged on the top plane of the fixed platform, a first pouring hole and a second pouring hole in communication with the fixed insertion slot are arranged on the side wall of the fixed platform, and the first pouring hole is located above the second pouring hole;

[0010] 3) Hoisting, hoisting equipment is used to hoist the main prefabricated plate PC to the installation area, the outermost positioning ribs on both sides of the main prefabricated plate PC pass through the adjusting ring of the positioning support located above the fixed platform, and the positioning ribs extend into the fixed insertion slot of the fixed platform;

[0011] 4) Positioning, the first semicircular air bag and the second semicircular air bag in the adjusting ring of the positioning support are adjusted, air is filled into the first semicircular air bag and the second semicircular air bag, so that the first semicircular air bag and the second semicircular air bag are inflated and extrude the positioning ribs, the center of the positioning ribs is on the same vertical line with the center of the fixed insertion slot, the main prefabricated plate PC is positioned in the installation position of the installation area, then the adjusting ring between the main prefabricated plate PC and the fixed platform is taken out, the upper hinge seat of the positioning support is installed on the main prefabricated plate PC, the lower hinge seat of the positioning support is installed on the ground of the installation area, the main prefabricated plate PC is lowered, and the upper hinge seat and the lower hinge seat are respectively hinged to both ends of the supporting guard rod;

[0012] 5) pouring, after the hoisting and placing of the main prefabricated plate PC is completed, judging whether the auxiliary prefabricated plate PC is hoisted, if the auxiliary prefabricated plate PC is not hoisted, cement pump and concrete delivery pipe are used to pour cement through the first pouring hole to the second pouring hole, when the second pouring hole has cement overflow, stop pouring, use the end cap to block the first pouring hole and the second pouring hole, then use cement to fill the inverted-tapered groove and the fixed hole groove, and use the end cap to block the first pouring hole and the first communication hole; if the auxiliary prefabricated plate PC needs to be hoisted, the auxiliary prefabricated plate PC is hoisted above the main prefabricated plate PC, and then dropped, so that the inverted-tapered connecting rod at the bottom of the auxiliary prefabricated plate PC is inserted into the inverted-tapered groove at the top of the main prefabricated plate PC, the bottom of the auxiliary prefabricated plate PC is inserted into the fixed hole groove at the top of the main prefabricated plate PC, and cement pump and concrete delivery pipe are used to pour cement through the second pouring hole to the first pouring hole; cement pump and concrete delivery pipe are used to pour cement through the second communication hole to the first communication hole; when the first pouring hole and the first communication hole have cement overflow, stop pouring, and use the end cap to block the first pouring hole and the first communication hole;

[0013] 6) Wall column steel bars between adjacent prefabricated plates PC are bound, and wall column templates are installed, and wall column pouring and forming are completed;

[0014] 7) disassembling the positioning support device.

[0015] As a preferred technical solution, the positioning rib outer side wall is uniformly distributed with dispersion holes.

[0016] As a preferred technical solution, the insertion rib outer side wall is uniformly distributed with fixed holes.

[0017] As a preferred technical solution, the communication channel side wall surface in the protruding part of the inverted-tapered connecting rod is provided with a plurality of parallel hole channels.

[0018] As a preferred technical solution, the positioning support device comprises a first semicircle ring and a second semicircle ring, the two ends of the first semicircle ring and the two ends of the second semicircle ring are fixedly connected through a latch respectively, a first connecting rod is arranged at the center of the outer arc surface of the first semicircle ring, a second connecting rod is arranged at the center of the outer arc surface of the second semicircle ring, a sliding channel is arranged on the opposite surface of the first connecting rod and the second connecting rod respectively, a sliding block is arranged in the sliding channel, the outer side surface of the sliding block is connected with the top side of a vertical rod through a connecting column, the distance between the outer side surfaces of two opposite vertical rods matches the inner diameter of the fixed insertion slot of the fixed platform, a fixed screw hole is arranged in the sliding channel, the distance from the bottom of the fixed screw hole to the bottom of the sliding channel is greater than the length of the sliding block, a fixed screw rod extends into the sliding channel from one side of the fixed screw hole, the sliding block slides to the bottom of the sliding channel, the fixed screw rod is located above the sliding block, and the vertical rod is lowered to the fixed insertion slot;

[0019] The outer ring surfaces at both ends of the first semi-circular ring are fixedly connected to the outer ring surface of the upper pin ring through the first connecting post. The outer ring surfaces at both ends of the second semi-circular ring are fixedly connected to the outer ring surface of the lower pin ring through the second connecting post. The pin passes through the center of the lower pin ring and is threaded to the internal thread of the upper pin ring. One end of the pin is threaded and the other end is provided with a hand grip rotating cap.

[0020] The bottom outer sides of the first connecting rod and the second connecting rod are respectively provided with balance rods. One end of the balance rod is provided with a rotating ring. The rotating ring is rotatably sleeved on the rotating ring groove of the upright. The top of the upright is provided with an extension rod. A sliding cylinder is sleeved on the extension rod. The top end of the sliding cylinder is hinged to the bottom side of the upper hinge seat. The tail of the upright is provided with a parallel rod. The tail of the parallel rod is hinged to one side of the lower hinge seat.

[0021] As a preferred technical solution, the distance between the outer surfaces of the two opposing vertical rods is greater than the diameter of the pre-embedded positioning rib.

[0022] As a preferred technical solution, the inner arc surfaces of the first semicircular ring and the second semicircular ring are respectively provided with inner arc grooves. The inner arc groove of the first semicircular ring is provided with a first semicircular airbag, and the inner arc groove of the second semicircular ring is provided with a second semicircular airbag. One end of the three-way pipe is connected to the top of one end of the first semicircular airbag and the second semicircular airbag, and the inflation pipe of the three-way pipe is connected to the inflation port of the air pump.

[0023] An installation and connection method for precast PC slabs using the above-mentioned technical solution includes the following steps: 1) Precast PC slabs, wherein several positioning ribs are pre-embedded on both sides of the bottom of the main precast PC slab, and the top two ends of the main precast PC slab are respectively provided with inverted frustum-shaped grooves. Several fixing slots are provided on the top of the main precast PC slab between two of the inverted frustum-shaped grooves. A first casting hole communicating with the bottom side of the fixing slot is provided on one side of the top of the main precast PC slab, and an extension slot is provided at the bottom of the inverted frustum-shaped groove. A first connecting hole communicating with the bottom side of the extension slot is provided on one side of the top of the main precast PC slab; It also includes auxiliary precast PC slabs, wherein the auxiliary precast PC slab... The bottom is provided with a frustum-shaped connecting rod, the protrusion of which matches the frustum-shaped groove. The bottom of the auxiliary precast slab PC between the frustum-shaped connecting rods has several connecting channels, each containing a connecting rib that extends out of the channel and matches the fixing slot. The bottom of the frustum-shaped connecting rod has a connecting channel that extends into the tail of the connecting rod, which is located within the auxiliary precast slab PC. One side of the auxiliary precast slab PC has a second connecting hole communicating with the connecting channel. Another side of the auxiliary precast slab PC has a connecting hole communicating with the top of the connecting channel. 1) The second pouring hole; 2) A fixing platform that cooperates with the positioning rib in the installation area of ​​the main precast slab PC, the top plane of the fixing platform is provided with a fixing slot, the side wall of the fixing platform is provided with a first grouting hole and a second grouting hole communicating with the fixing slot, the first grouting hole being located above the second grouting hole; 3) Using hoisting equipment to hoist the main precast slab PC to the installation area, so that the outermost positioning ribs on both sides of the main precast slab PC pass through the adjusting ring of the positioning support located above the fixing platform, and so that the positioning ribs extend into the fixing slot of the fixing platform; 4) Adjust the first semi-circular airbag in the adjusting ring of the positioning support. Inflating the first and second semi-circular airbags with the second semi-circular airbag causes them to expand and compress the positioning ribs, making the center of the positioning ribs and the center of the fixing slot on the same vertical line, thus positioning the main precast slab PC in the installation area. Then, the adjusting ring between the main precast slab PC and the fixing platform is removed, the upper hinge seat of the positioning support is installed on the main precast slab PC, the lower hinge seat of the positioning support is installed on the ground of the installation area, and the main precast slab PC is lowered. The upper hinge seat and the lower hinge seat are respectively hinged to the two ends of the support rod.5) After the main precast slab PC is hoisted and placed, determine whether the auxiliary precast slab PC needs to be hoisted. If the auxiliary precast slab PC does not need to be hoisted, use a cement pump and concrete delivery pipe to pour cement into the second injection hole through the first injection hole. When cement overflows from the second injection hole, stop pouring, use a cap to block the first injection hole and the second injection hole, and then fill the frustum-shaped groove and fixing hole groove with cement. Use a cap to block the first pouring hole and the first connecting hole. If the auxiliary precast slab PC needs to be hoisted, hoist the auxiliary precast slab PC above the main precast slab PC and lower it so that the frustum-shaped connecting rod at the bottom of the auxiliary precast slab PC is inserted. The auxiliary precast slab PC's bottom reinforcing bars are inserted into the top fixed holes of the main precast slab PC, and cement is poured into the first pouring hole through the second pouring hole using a cement pump and concrete delivery pipe; cement is also poured into the first connecting hole through the second connecting hole using a cement pump and concrete delivery pipe; when cement overflows from the first pouring hole and the first connecting hole, pouring is stopped, and the first pouring hole and the first connecting hole are blocked with end caps; 6) The wall column reinforcement bars between adjacent precast slab PCs are tied, and the wall column formwork is installed to complete the wall column casting; 7) The positioning support is disassembled.

[0024] The advantages of this invention are convenient support, enhanced structural strength of the precast PC slab and the ground in the installation area, reduced probability of the precast PC slab tipping over in the installation area; and ease of position adjustment and precise positioning of the precast PC slab. Attached Figure Description

[0025] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0026] Figure 2 A cross-sectional view of an embodiment of the present invention without cement pouring;

[0027] Figure 3 A schematic diagram of the upper end of the support rod and the upper hinge seat not hinged during the hoisting process of this embodiment of the invention;

[0028] Figure 4 for Figure 3 A magnified view of A;

[0029] Figure 5 This is a schematic diagram of the first semi-circular ring structure of the positioning support of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the support rod of the present invention;

[0031] Among them, 1-Main precast slab PC; 2-Positioning rib; 3-Inverted frustum-shaped groove; 4-Fixing hole groove; 5-Interlocking rib; 6-First pouring hole; 7-Extension hole groove; 8-First connecting hole; 9-Auxiliary precast slab PC; 10-Inverted frustum-shaped connecting rod; 100-Protrusion; 101-Tail; 11-Connecting channel; 12-Connecting channel; 13-Second connecting hole; 14-Second pouring hole; 15-Fixing platform; 16-Fixing slot; 17-First grouting hole; 18-Second grouting hole; 19-Positioning support; 190-First semi-circular ring; 1900-First connecting column; 1901-Upper pin ring; 1903-Balance bar; 1904-Rotating ring; 1905-Upright pole; 1906-Extension rod; 19 07-Sliding cylinder; 1908-Parallel rod; 1909-Inner arc groove; 191-Second semicircular ring; 1910-Second connecting post; 1911-Lower pin ring; 192-First connecting rod; 193-Second connecting rod; 194-Sliding track; 195-Sliding block; 196-Connecting post; 197-Vertical rod; 198-Fixing screw hole; 199-Fixing screw; 20-First semicircular airbag; 21-Second semicircular airbag; 22-Upper hinge seat; 23-Lower hinge seat; 24-Support guard rod; 241-Upper rod; 2411-Upper threaded section; 242-Lower rod; 2421-Lower threaded section; 243-Threaded sleeve; 2431-First internal thread; 2432-Second internal thread; 25-Tee pipe. Detailed Implementation

[0032] To overcome the above deficiencies, the present invention provides a method for installing and connecting prefabricated PC panels to solve the problems mentioned in the background art.

[0033] A method for installing and connecting precast PC panels includes the following steps:

[0034] 1) Several positioning ribs are pre-embedded on both sides of the bottom of the main precast slab PC. The top two ends of the main precast slab PC are respectively provided with frustum-shaped grooves. Several fixing slots are provided on the top of the main precast slab PC between two of the frustum-shaped grooves. A first pouring hole communicating with the bottom side of the fixing slot is provided on one side of the top of the main precast slab PC. An extension slot is provided at the bottom of the frustum-shaped groove. A first connecting hole communicating with the bottom side of the extension slot is provided on one side of the top of the main precast slab PC. It also includes an auxiliary precast slab PC. The bottom of the auxiliary precast slab PC is provided with a frustum-shaped connecting rod. The protruding part of the frustum-shaped connecting rod... The part matches the inverted frustum-shaped groove. The bottom of the auxiliary precast slab PC between the inverted frustum-shaped connecting rods is provided with several connecting channels. Insertion ribs are provided in the connecting channels. The insertion ribs extend out of the connecting channels and match the fixing slots. The bottom of the inverted frustum-shaped connecting rod is provided with a connecting channel. The connecting channel extends into the tail of the inverted frustum-shaped connecting rod. The tail of the inverted frustum-shaped connecting rod is located in the auxiliary precast slab PC. One side of the auxiliary precast slab PC is provided with a second connecting hole that communicates with the connecting channel. One side of the auxiliary precast slab PC is provided with a second casting hole that communicates with the top side of the connecting channel.

[0035] 2) Installation area preparation: A fixing platform that cooperates with the positioning rib is provided in the installation area of ​​the main precast slab PC. A fixing slot is provided on the top plane of the fixing platform. A first injection hole and a second injection hole that communicate with the fixing slot are provided on the side wall of the fixing platform. The first injection hole is located above the second injection hole.

[0036] 3) Lifting: Use lifting equipment to lift the main precast slab PC to the installation area, so that the outermost positioning ribs on both sides of the main precast slab PC pass through the adjusting ring of the positioning support located above the fixed platform, and so that the positioning ribs extend into the fixed slot of the fixed platform.

[0037] 4) Positioning: Adjust the first and second semi-circular airbags in the adjusting ring of the positioning support, inflate the first and second semi-circular airbags so that they expand and compress the positioning rib, making the center of the positioning rib and the center of the fixed slot on the same vertical line, so that the main precast slab PC is in the installation position in the installation area. Then, remove the adjusting ring between the main precast slab PC and the fixed platform, install the upper hinge seat of the positioning support on the main precast slab PC, install the lower hinge seat of the positioning support on the ground of the installation area, and lower the main precast slab PC. The upper hinge seat and the lower hinge seat are respectively hinged to the two ends of the support rod.

[0038] 5) Pouring: After the main precast slab PC is hoisted and placed, it is determined whether the auxiliary precast slab PC needs to be hoisted. If the auxiliary precast slab PC does not need to be hoisted, cement is poured into the second injection hole through the first injection hole using a cement pump and concrete delivery pipe. When cement overflows from the second injection hole, pouring is stopped, and the first and second injection holes are blocked with end caps. Then, the frustum-shaped groove and fixing hole groove are filled with cement, and the first pouring hole and the first connecting hole are blocked with end caps. If the auxiliary precast slab PC needs to be hoisted, it is hoisted onto the main precast slab PC. The auxiliary precast slab PC is lowered so that the bottom frustum-shaped connecting rod is inserted into the top frustum-shaped groove of the main precast slab PC, and the bottom insert bar of the auxiliary precast slab PC is inserted into the top fixing hole groove of the main precast slab PC. Cement is poured into the first pouring hole through the second pouring hole using a cement pump and concrete delivery pipe; cement is poured into the first connecting hole through the second connecting hole using a cement pump and concrete delivery pipe; when cement overflows from the first pouring hole and the first connecting hole, pouring is stopped, and the first pouring hole and the first connecting hole are blocked with a sealing head.

[0039] 6) Tie the wall and column reinforcement between adjacent precast concrete slabs (PC), install the wall and column formwork, and complete the wall and column casting.

[0040] 7) Disassemble the positioning support.

[0041] The outer wall of the positioning rib is evenly distributed with dispersion holes.

[0042] The outer side wall of the insertion bar is evenly distributed with fixing holes.

[0043] The protrusion of the inverted frustum-shaped connecting rod has several parallel holes on the side wall of the connecting channel.

[0044] The positioning support includes a first semicircular ring and a second semicircular ring. The two ends of the first semicircular ring and the two ends of the second semicircular ring are fixedly connected by pins. A first connecting rod is provided at the center of the outer arc surface of the first semicircular ring, and a second connecting rod is provided at the center of the outer arc surface of the second semicircular ring. Sliding tracks are provided on the opposite surfaces of the first and second connecting rods. A sliding block is provided in the sliding track. The outer side of the sliding block is connected to one side of the top of the vertical rod through a connecting post. The distance between the outer sides of the two opposite vertical rods matches the inner diameter of the fixing slot of the fixing platform. A fixing screw hole is provided in the sliding track. The distance from the bottom of the fixing screw hole to the bottom of the sliding track is greater than the length of the sliding block. A fixing screw extends from one side of the fixing screw hole into the sliding track. When the sliding block slides to the bottom of the sliding track, the fixing screw is located above the sliding block, causing the vertical rod to descend into the fixing slot.

[0045] The outer ring surfaces at both ends of the first semi-circular ring are fixedly connected to the outer ring surface of the upper pin ring through the first connecting post. The outer ring surfaces at both ends of the second semi-circular ring are fixedly connected to the outer ring surface of the lower pin ring through the second connecting post. The pin passes through the center of the lower pin ring and is threaded to the internal thread of the upper pin ring. One end of the pin is threaded and the other end is provided with a hand grip rotating cap.

[0046] The bottom outer sides of the first connecting rod and the second connecting rod are respectively provided with balance rods. One end of the balance rod is provided with a rotating ring. The rotating ring is rotatably sleeved on the rotating ring groove of the upright. The top of the upright is provided with an extension rod. A sliding cylinder is sleeved on the extension rod. The top end of the sliding cylinder is hinged to the bottom side of the upper hinge seat. The tail of the upright is provided with a parallel rod. The tail of the parallel rod is hinged to one side of the lower hinge seat.

[0047] The distance between the outer surfaces of the two opposing vertical rods is greater than the diameter of the pre-embedded positioning rib.

[0048] The first semicircular ring and the second semicircular ring are respectively provided with inner arc grooves on their inner arc surfaces. The first semicircular ring is provided with a first semicircular airbag in its inner arc groove, and the second semicircular ring is provided with a second semicircular airbag in its inner arc groove. One end of the three-way pipe is connected to the top of one end of the first semicircular airbag and the second semicircular airbag. The inflation pipe of the three-way pipe is connected to the inflation port of the inflation pump.

[0049] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific embodiments.

[0050] Example

[0051] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown:

[0052] The main precast slab PC and the auxiliary precast slab PC form a reinforced concrete square wall.

[0053] 1) Several positioning ribs 2 are pre-embedded on both sides of the bottom of the main precast slab PC1. The top two ends of the main precast slab PC1 are respectively provided with frustum-shaped grooves 3. Several fixing slots 4 are provided on the top of the main precast slab PC1 between two frustum-shaped grooves 3. A first casting hole 6 communicating with the bottom side of the fixing slot 4 is provided on one side of the top of the main precast slab PC1. An extension slot 7 is provided at the bottom of the frustum-shaped groove 3. A first connecting hole 8 communicating with the bottom side of the extension slot 7 is provided on one side of the top of the main precast slab PC1. The slab also includes an auxiliary precast slab PC9. The bottom of the auxiliary precast slab PC9 is provided with a frustum-shaped connecting rod 10. The protrusion 100 of the frustum-shaped connecting rod 10 connects with the frustum-shaped... The groove 3 is matched, and the bottom of the auxiliary precast slab PC9 between the inverted frustum-shaped connecting rods 10 is provided with several connecting channels 11. The connecting channels 11 are provided with inserting ribs 5, and the inserting ribs 5 extend out of the connecting channels 11 to match the fixing grooves 4. The bottom of the inverted frustum-shaped connecting rod 10 is provided with a connecting channel 12, and the connecting channel 12 extends into the tail 101 of the inverted frustum-shaped connecting rod 10. The tail 101 of the inverted frustum-shaped connecting rod 10 is located in the auxiliary precast slab PC9. One side of the auxiliary precast slab PC9 is provided with a second connecting hole 13 that communicates with the connecting channel 12. One side of the auxiliary precast slab PC9 is provided with a second casting hole 14 that communicates with the top side of the connecting channel 11.

[0054] 2) A fixing platform 15 that cooperates with the positioning rib 2 in the installation area of ​​the main precast slab PC1. A fixing slot 16 is provided on the top plane of the fixing platform 15. A first injection hole 17 and a second injection hole 18 that communicate with the fixing slot 4 are provided on the side wall of the fixing platform 15. The first injection hole 17 is located above the second injection hole 18.

[0055] 3) Use hoisting equipment to hoist the main precast slab PC1 to the installation area, so that the outermost positioning ribs 2 on both sides of the main precast slab PC1 pass through the adjusting ring of the positioning support 19 located above the fixed platform 15, and so that the positioning ribs 2 extend into the fixed slot 16 of the fixed platform 15.

[0056] 4) Adjust the first semi-circular airbag 20 and the second semi-circular airbag 21 in the adjusting ring of the positioning support 19, inflate the first semi-circular airbag 20 and the second semi-circular airbag, so that the first semi-circular airbag 20 and the second semi-circular airbag expand and the first semi-circular airbag 20 and the second semi-circular airbag squeeze the positioning rib 2, so that the center of the positioning rib 2 and the center of the fixing slot 16 are on the same vertical line, so that the main precast slab PC1 is in the installation position in the installation area, then remove the adjusting ring between the main precast slab PC1 and the fixing platform 15, install the upper hinge seat 22 of the positioning support 19 on the main precast slab PC1, install the lower hinge seat 23 of the positioning support 19 on the ground of the installation area, and lower the main precast slab PC1. The upper hinge seat 22 and the lower hinge seat 23 are respectively hinged to the two ends of the support rod 24.

[0057] 5) After the main precast slab PC1 is hoisted and placed, determine whether the auxiliary precast slab PC9 needs to be hoisted. If the auxiliary precast slab PC9 does not need to be hoisted, use a cement pump and concrete delivery pipe to pour cement into the second injection hole 18 through the first injection hole 17. When cement overflows from the second injection hole 18, stop pouring, use a cap to block the first injection hole 17 and the second injection hole 18, and then fill the inverted frustum-shaped groove 3 and the fixing hole groove 4 with cement. Use a cap to block the first pouring hole 6 and the first connecting hole 8. If the auxiliary precast slab PC9 needs to be hoisted, hoist the auxiliary precast slab PC9 above the main precast slab PC1. The auxiliary precast slab PC9 is lowered, causing the bottom frustum-shaped connecting rod 10 to be inserted into the top frustum-shaped groove 3 of the main precast slab PC1. The bottom insert bar 5 of the auxiliary precast slab PC9 is inserted into the top fixing hole groove 4 of the main precast slab PC1. Cement is poured into the first pouring hole 6 through the second pouring hole 14 using a cement pump and concrete delivery pipe. Cement is poured into the first connecting hole 8 through the second connecting hole 13 using a cement pump and concrete delivery pipe. When cement overflows from the first pouring hole 6 and the first connecting hole 8, pouring is stopped, and the first pouring hole 6 and the first connecting hole 8 are blocked with a cap.

[0058] 6) Tie the wall column reinforcement between adjacent precast slabs (PC), and tie and fix the wall column reinforcement and the C-shaped reinforcement of the adjacent precast slabs (PC), and install the wall column formwork to complete the wall column casting and forming;

[0059] 7) Disassemble the positioning support 19.

[0060] The outer wall of the positioning rib 2 is evenly distributed with dispersion holes.

[0061] The outer side wall of the insertion rib 5 is evenly distributed with fixing holes.

[0062] The protrusion 100 of the frustum-shaped connecting rod 10 has several parallel holes on the side wall of the connecting channel 12.

[0063] The positioning support 19 includes a first semicircular ring 190 and a second semicircular ring 191. The two ends of the first semicircular ring 190 and the two ends of the second semicircular ring 191 are respectively fixedly connected by pins. A first connecting rod 192 is provided at the center of the outer arc surface of the first semicircular ring 190, and a second connecting rod 193 is provided at the center of the outer arc surface of the second semicircular ring 191. Sliding tracks 194 are respectively provided on the opposite surfaces of the first connecting rod 192 and the second connecting rod 193. A sliding block 195 is provided in the sliding track 194. The outer side of the sliding block 195 is connected to one side of the top end of the vertical rod 197 through a connecting post 196. Next, the distance between the outer sides of the two opposing vertical rods 197 matches the inner diameter of the fixing slot 16 of the fixing platform 15; the sliding track 194 is provided with a fixing screw hole 198, the distance from the bottom of the fixing screw hole 198 to the bottom of the inner side of the sliding track 194 is greater than the length of the sliding block 195, the fixing screw 199 extends from one side of the fixing screw hole 198 into the sliding track 194, the sliding block 195 slides to the bottom of the sliding track 194, the fixing screw 199 is located above the sliding block 195, so that the vertical rod 197 descends into the fixing slot 16;

[0064] The outer ring surfaces at both ends of the first semicircular ring 190 are fixedly connected to the outer ring surface of the upper pin ring 1901 via the first connecting post 1900. The outer ring surfaces at both ends of the second semicircular ring 191 are fixedly connected to the outer ring surface of the lower pin ring 1911 via the second connecting post 1910. The pin passes through the center of the lower pin ring 1911 and is threaded to the internal thread of the upper pin ring 1901. One end of the pin is threaded, and the other end of the pin is provided with a hand grip rotating cap.

[0065] The bottom outer sides of the first connecting rod 192 and the second connecting rod 193 are respectively provided with balance rods 1903. One end of the balance rod 1903 is provided with a rotating ring 1904. The rotating ring 1904 is rotatably sleeved on the rotating ring groove of the upright rod 1905. The top of the upright rod 1905 is provided with an extension rod 1906. A sliding cylinder 1907 is sleeved on the extension rod 1906. The top end of the sliding cylinder 1907 is hinged to the bottom side of the upper hinge seat 22. The tail of the upright rod 1905 is provided with a parallel rod 1908. The tail of the parallel rod 1908 is hinged to one side of the lower hinge seat 23.

[0066] One end of the support rod 24 is fixed to the upper hinge seat 22 of the wall of the main precast slab PC1, and the other end is fixed to the lower hinge seat 23 of the ground.

[0067] The support rod 24 includes an upper rod 241 hinged at its top to an upper hinge seat 22, a lower rod 242 hinged at its bottom to a lower hinge seat 23, and a threaded sleeve 243 connecting the upper rod 241 and the lower rod 242. The bottom end of the upper rod 241 has an upper threaded section 2411, and the bottom end of the lower rod 242 has a lower threaded section 2421. The threaded sleeve 243 has a first internal thread 2431 that mates with the upper threaded section 2411 and a second internal thread 2432 that mates with the lower threaded section 2421. When the threaded sleeve 243 is rotated, the upper threaded section 2411 and the lower threaded section 2421 move synchronously towards each other or synchronously away from each other.

[0068] The lower hinge seat 23 is installed on the ground and its length is adjusted by rotating the threaded sleeve 243, and the upper hinge seat 23 is installed on the main precast slab PC1.

[0069] The distance between the outer surfaces of the two opposing vertical rods 197 is greater than the diameter of the embedded positioning rib 2. The vertical rod is an arc-shaped vertical rod that fits against the inner wall of the fixing slot. C-shaped steel bars are respectively provided on both sides of the main precast slab and the auxiliary precast slab.

[0070] The inner arc surfaces of the first semicircular ring 190 and the second semicircular ring 191 are respectively provided with inner arc grooves 1909. The inner arc groove 1909 of the first semicircular ring 190 is provided with a first semicircular airbag 20, and the inner arc groove 1909 of the second semicircular ring 191 is provided with a second semicircular airbag. One end of the three-way pipe 25 is connected to the top of one end of the first semicircular airbag 20 and the second semicircular airbag. The inflation pipe of the three-way pipe 25 is connected to the inflation port of the inflation pump.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A method for installing and connecting precast PC panels, characterized in that, Includes the following steps: 1) Several positioning ribs are pre-embedded on both sides of the bottom of the main precast slab PC. The top two ends of the main precast slab PC are respectively provided with frustum-shaped grooves. Several fixing slots are provided on the top of the main precast slab PC between two of the frustum-shaped grooves. A first pouring hole communicating with the bottom side of the fixing slot is provided on one side of the top of the main precast slab PC. An extension slot is provided at the bottom of the frustum-shaped groove. A first connecting hole communicating with the bottom side of the extension slot is provided on one side of the top of the main precast slab PC. It also includes an auxiliary precast slab PC. The bottom of the auxiliary precast slab PC is provided with a frustum-shaped connecting rod. The protrusion of the frustum-shaped connecting rod matches the frustum-shaped groove. The bottom of the auxiliary precast slab PC between the inverted frustum-shaped connecting rods is provided with several connecting channels, and the connecting channels are provided with inserting ribs. The inserting ribs extend out of the connecting channels and match the fixing slots. The bottom of the inverted frustum-shaped connecting rod is provided with a connecting channel, which extends into the tail of the inverted frustum-shaped connecting rod. The tail of the inverted frustum-shaped connecting rod is located inside the auxiliary precast slab PC. One side of the auxiliary precast slab PC is provided with a second connecting hole that communicates with the connecting channel. One side of the auxiliary precast slab PC is provided with a second casting hole that communicates with the top side of the connecting channel. The side wall of the connecting channel in the protrusion of the inverted frustum-shaped connecting rod is provided with several parallel channels. 2) Installation area preparation: A fixing platform that cooperates with the positioning rib is provided in the installation area of ​​the main precast slab PC. A fixing slot is provided on the top plane of the fixing platform. A first injection hole and a second injection hole that communicate with the fixing slot are provided on the side wall of the fixing platform. The first injection hole is located above the second injection hole. 3) Lifting: Use lifting equipment to lift the main precast slab PC to the installation area, so that the outermost positioning ribs on both sides of the main precast slab PC pass through the adjusting ring of the positioning support located above the fixed platform, and so that the positioning ribs extend into the fixed slot of the fixed platform. 4) Positioning: Adjust the first and second semi-circular airbags in the adjusting ring of the positioning support, inflate the first and second semi-circular airbags so that they expand and compress the positioning rib, making the center of the positioning rib and the center of the fixed slot on the same vertical line, so that the main precast slab PC is in the installation position in the installation area. Then, remove the adjusting ring between the main precast slab PC and the fixed platform, install the upper hinge seat of the positioning support on the main precast slab PC, install the lower hinge seat of the positioning support on the ground of the installation area, and lower the main precast slab PC. The upper hinge seat and the lower hinge seat are respectively hinged to the two ends of the support rod. 5) Pouring: After the main precast slab PC is hoisted and placed, it is determined whether the auxiliary precast slab PC needs to be hoisted. If the auxiliary precast slab PC does not need to be hoisted, cement is poured into the second grouting hole through the first grouting hole using a cement pump and concrete delivery pipe. When cement overflows from the second grouting hole, pouring is stopped. The first grouting hole and the second grouting hole are blocked with a cap. Then, the inverted frustum-shaped groove and the fixing hole groove are filled with cement. The first pouring hole and the first connecting hole are blocked with a cap. When it is necessary to hoist the auxiliary precast slab PC, the auxiliary precast slab PC is hoisted above the main precast slab PC and lowered so that the bottom frustum-shaped connecting rod of the auxiliary precast slab PC is inserted into the top frustum-shaped groove of the main precast slab PC, and the bottom insert bar of the auxiliary precast slab PC is inserted into the top fixing hole groove of the main precast slab PC. Cement is poured into the first pouring hole through the second pouring hole using a cement pump and concrete delivery pipe; cement is poured into the first connecting hole through the second connecting hole using a cement pump and concrete delivery pipe; when cement overflows from the first pouring hole and the first connecting hole, pouring is stopped, and the first pouring hole and the first connecting hole are blocked with a cap. 6) Tie the wall and column reinforcement between adjacent precast concrete slabs (PC), install the wall and column formwork, and complete the wall and column casting. 7) Disassemble the positioning support.

2. The installation and connection method of precast PC as described in claim 1, characterized in that: The outer wall of the positioning rib is evenly distributed with dispersion holes.

3. The installation and connection method of precast PC as described in claim 1, characterized in that: The outer side wall of the insertion bar is evenly distributed with fixing holes.

4. The installation and connection method of precast PC as described in claim 1, characterized in that: The positioning support includes a first semicircular ring and a second semicircular ring. The two ends of the first semicircular ring and the two ends of the second semicircular ring are fixedly connected by pins. A first connecting rod is provided at the center of the outer arc surface of the first semicircular ring, and a second connecting rod is provided at the center of the outer arc surface of the second semicircular ring. Sliding tracks are provided on the opposite surfaces of the first and second connecting rods. A sliding block is provided in the sliding track. The outer side of the sliding block is connected to one side of the top of the vertical rod through a connecting post. The distance between the outer sides of the two opposite vertical rods matches the inner diameter of the fixing slot of the fixing platform. A fixing screw hole is provided in the sliding track. The distance from the bottom of the fixing screw hole to the bottom of the sliding track is greater than the length of the sliding block. A fixing screw extends from one side of the fixing screw hole into the sliding track. When the sliding block slides to the bottom of the sliding track, the fixing screw is located above the sliding block, causing the vertical rod to descend into the fixing slot. The outer ring surfaces at both ends of the first semi-circular ring are fixedly connected to the outer ring surface of the upper pin ring through the first connecting post. The outer ring surfaces at both ends of the second semi-circular ring are fixedly connected to the outer ring surface of the lower pin ring through the second connecting post. The pin passes through the center of the lower pin ring and is threaded to the internal thread of the upper pin ring. One end of the pin is threaded and the other end is provided with a hand grip rotating cap. The bottom outer sides of the first connecting rod and the second connecting rod are respectively provided with balance rods. One end of the balance rod is provided with a rotating ring. The rotating ring is rotatably sleeved on the rotating ring groove of the upright. The top of the upright is provided with an extension rod. A sliding cylinder is sleeved on the extension rod. The top end of the sliding cylinder is hinged to the bottom side of the upper hinge seat. The tail of the upright is provided with a parallel rod. The tail of the parallel rod is hinged to one side of the lower hinge seat.

5. The installation and connection method of precast PC as described in claim 4, characterized in that: The distance between the outer surfaces of the two opposing vertical rods is greater than the diameter of the pre-embedded positioning rib.

6. The installation and connection method of precast PC as described in claim 4, characterized in that: The first semicircular ring and the second semicircular ring are respectively provided with inner arc grooves on their inner arc surfaces. The first semicircular ring is provided with a first semicircular airbag in its inner arc groove, and the second semicircular ring is provided with a second semicircular airbag in its inner arc groove. One end of the three-way pipe is connected to the top of one end of the first semicircular airbag and the second semicircular airbag. The inflation pipe of the three-way pipe is connected to the inflation port of the inflation pump.

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