Assembly type suspended ceiling structure convenient and rapid to install and construction method thereof

Abstract

The invention discloses an assembly type suspended ceiling structure convenient and fast to install and a construction method thereof.According to the assembly type suspended ceiling structure, the top of a suspender is connected with a floor top plate, an expansion bolt is arranged at the top of the suspender, an expansion bolt fast-installing structure is arranged below the expansion bolt, and a main keel hanging-connecting structure is arranged at the bottom of the suspender; the main keel hanging connection structure comprises an L-shaped hanging connection structure, a main keel bolt through hole is formed in the middle of the main keel, a hanging connection structure bolt hole matched with the main keel bolt through hole is formed in the position, right opposite to the main keel bolt through hole, of the vertical section of the L-shaped hanging connection structure, the auxiliary keels are fixed to the bottom of the main keel through the auxiliary keel clamping connection structure, and the suspended ceiling plate is clamped between the auxiliary keels. According to the assembly type suspended ceiling structure convenient and fast to install and the construction method thereof, the problem that in the construction process of an existing assembly type suspended ceiling, due to the fact that an expansion fixing structure is inconvenient to install, the overall construction progress of the suspended ceiling is slow is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of suspended ceiling, in particular to a kind of assembled suspended ceiling structure and its construction method of convenient and fast installation. BACKGROUND

[0002] Assembled suspended ceiling is a kind of modern suspended ceiling system, which is produced by standardization and modularization in factory, then transported to construction site, and quickly assembled by dry operation (such as buckling, hanging, splicing). The structure of existing assembled suspended ceiling mainly includes anchoring mechanism, suspender, main furring, secondary furring and suspended ceiling panel arranged from top to bottom. The above structure is produced in factory and then sent to construction site for installation. During installation, hole drilling operation is first carried out on floor, then anchoring mechanism and suspender are connected together, suspender length is adjusted, anchoring end connected with anchoring mechanism is sent into the hole drilled, suspender is anchored, then main furring is connected below suspender, then secondary furring is installed, finally, suspended ceiling panel is buckled between secondary furring, thus the installation of assembled suspended ceiling is completed.

[0003] However, the installation efficiency of existing assembled suspended ceiling is not high. The main reason is that the installation efficiency is low when anchoring suspended ceiling by using expansion bolt. Because external wrench is needed for construction, when external wrench is used for construction, first, the size of wrench clamping interface needs to be adjusted according to the size of expansion bolt nut, which is the first time-consuming place. Secondly, when using wrench for construction, it is difficult to apply force because the nut of expansion bolt is close to the ceiling, which is also the reason for low construction efficiency. It is necessary to improve existing assembled suspended ceiling structure to more conveniently and quickly complete the construction of assembled suspended ceiling structure. SUMMARY

[0004] The present application aims to provide a kind of assembled suspended ceiling structure and its construction method of convenient and fast installation, solve the problem of slow overall construction progress of suspended ceiling caused by inconvenient installation of expansion fixing structure in the construction process of existing assembled suspended ceiling.

[0005] To solve the above technical problems, the present application adopts the following technical solutions: The utility model provides a kind of conveniently and quickly installed assembled ceiling structure, including boom, main keel, vice keel and ceiling, the top of the boom is connected with floor top plate, the main keel is horizontally arranged at the bottom of boom, the vice keel is evenly arranged at the bottom of main keel, the ceiling is arranged at the bottom of vice keel, the top of the boom is equipped with expansion bolt, the lower side of the expansion bolt is equipped with expansion bolt quick-mounting structure, the bottom of the boom is equipped with main keel suspension structure, the main keel suspension structure includes 'L' type suspension structure, the middle of the main keel is equipped with main keel bolt through-hole, the vertical section of the 'L' type suspension structure is opposite main keel bolt through-hole and is equipped with suspension structure bolt hole matched with main keel bolt through-hole, the vice keel is fixed in the bottom of main keel by vice keel clamping structure, and the ceiling is clamped between vice keel.

[0006] In the scheme, the installation structure of the expansion bolt is improved, the original structure relying on a wrench to install the expansion bolt is changed to a special expansion bolt quick-mounting structure below the expansion bolt, which can realize the quick installation of the expansion bolt without relying on a wrench. This targeted installation structure directly manufactures the nut clamping structure at the top of the expansion bolt quick-mounting structure to the size matched with the nut of the expansion bolt during manufacturing, thereby eliminating the step of adjusting the clamping port. This installation is more convenient and faster. In addition, this targeted installation structure is also more convenient to apply force, thereby further improving the installation efficiency. Finally, the existing main keel suspension structure is also improved to an 'L' suspension structure, which can more quickly install the main keel. When installing the main keel, the main keel is only needed to be placed on the top of the horizontal section of the 'L' suspension structure, and then the main keel fixing bolt passing through the main keel bolt through-hole and the suspension structure bolt hole can quickly connect the main keel with the 'L' suspension structure, thereby completing the installation and fixation of the main keel.

[0007] As a further preferred embodiment of the present application, the expansion bolt quick-mounting mechanism includes a rotating sleeve and a rotating sleeve limiting structure. The rotating sleeve limiting structure includes a boom limiting outer ring and a rotating sleeve limiting inner ring. The boom limiting outer ring is fixed to the middle of the outer wall of the boom, and the rotating sleeve limiting inner ring is fixed to the lower part of the inner wall of the rotating sleeve. The rotating sleeve is sleeved outside the boom, and the boom limiting outer ring is below the rotating sleeve limiting inner ring. The upper part of the inner cavity of the rotating sleeve is a nut screwing section, the horizontal cross section of the inner cavity of the nut screwing section is matched with the nut of the boom fixing expansion bolt, and the outer wall of the rotating sleeve is provided with a force applying short column.

[0008] When installing the ceiling, the expansion bolt is inserted into the ceiling anchoring hole, then the operator holds the rotating sleeve and lifts the rotating sleeve upward, so that the nut rotating section in the top of the rotating sleeve is connected with the nut of the expansion bolt, then the rotating sleeve is rotated, so that the screw rod of the expansion bolt is driven downward, so that the bolt head of the expansion bolt is driven downward to contact the expansion sleeve to expand and achieve expansion fixation.

[0009] As a further preferred embodiment of the present application, the top of the rotating sleeve is uniformly connected with the ball.

[0010] When rotating, the top of the rotating sleeve contacts the gasket above the nut, in order to reduce friction, the ball is arranged on the top of the rotating sleeve.

[0011] As a further preferred embodiment of the present application, the expansion bolt comprises a bolt head, a screw rod, an expansion sleeve and a nut, the longitudinal section of the bolt head is conical, the bolt head is arranged at the top end of the screw rod, the screw rod comprises a rod body section and a threaded section arranged in sequence from top to bottom, the expansion sleeve is sleeved outside the rod body section, the upper part of the expansion sleeve is an expansion part, the expansion part is composed of uniformly distributed expansion sheets, the nut is threadedly connected at the threaded section, the nut is provided with a gasket between the nut and the expansion sleeve, and the bottom of the screw rod is fixedly connected with the suspender.

[0012] The conical bolt head is driven downward by the screw rod to cooperate with the expansion sheet to achieve expansion anchoring.

[0013] As a further preferred embodiment of the present application, the inner surface of the expansion sheet of the expansion sleeve is provided with an adhesive liquid bag mounting structure, the lower part of the bolt head is provided with a bag breaking structure opposite the position of the adhesive liquid bag mounting structure, the lower part of the expansion sleeve is a sleeve main body part, the upper part of the inner surface of the sleeve main body part is provided with an adhesive liquid blocking ring, and the inner ring wall of the adhesive liquid blocking ring is attached to the outer wall of the rod body section.

[0014] In existing technologies, some suspended ceilings need to bear significant weight. To meet these requirements, structural anchoring methods like expansion anchoring need to be replaced with chemical anchoring. However, chemical anchoring is cumbersome to implement. After drilling, the holes need to be cleaned, then adhesive is injected, and finally, the hangers are installed. After the hangers are installed, since there is no load-bearing structure, curing is required before further installation work can proceed. This is time-consuming and labor-intensive. To solve these problems, this solution improves the expansion bolt by incorporating an adhesive liquid bladder on the inner surface of the expansion plate. When chemical anchoring is required, the adhesive liquid bladder can be used for installation. A bag containing adhesive is installed at the structure of the expansion joint. When the bolt head moves downward, the bag is destroyed by the structure, allowing the adhesive to flow out. When the adhesive reaches the adhesive blocking ring, it cannot flow further downward and instead flows out from the gaps between the expansion plates, covering the outer wall of the expansion sleeve of the expansion bolt and connecting the expansion sleeve to the anchor hole. Because of the physical anchoring of the expansion bolt, no curing is required, and subsequent construction can continue. When construction reaches the point where a heavier ceiling panel needs to be lifted, the adhesive has already solidified, saving construction time. Moreover, it is a dual anchoring method of structural anchoring and chemical anchoring, making the anchoring more reliable.

[0015] As a further preferred embodiment of the present invention, the adhesive liquid bag mounting structure includes a bag storage chamber, wherein a bag breaking opening is provided at the middle position of the bottom plate and the wall of the bag storage chamber, and the bag breaking structure is a bag breaking spike adapted to the bag breaking opening, wherein the bag breaking spike is inclinedly arranged facing the bag breaking opening.

[0016] The capsule destruction puncture can penetrate into the capsule storage chamber and puncture the capsules that have been pre-loaded inside. Once the capsule is punctured, the adhesive fluid will flow out through the puncture opening.

[0017] As a further preferred embodiment of the present invention, the outer wall of the sleeve body is also uniformly provided with short convex structures.

[0018] The evenly distributed short convex structures allow the adhesive liquid to be distributed more evenly and also impede the flow rate of the adhesive liquid, causing most of the adhesive liquid to remain at the short convex structures. This increases the contact area between the adhesive liquid and the outer wall of the sleeve, making the connection between the expansion sleeve and the anchor hole more stable after the adhesive liquid solidifies.

[0019] As a further preferred embodiment of the present invention, the secondary keel snap-fit ​​structure includes a galvanized steel keel hanger and a keel hanger positioning structure. The top surface of the main keel is provided with a sliding groove, and a slider is provided in the sliding groove. The top of the slider is provided with a hanger positioning bolt serving as the keel hanger positioning structure. The lower part of the hanger positioning bolt is threadedly connected to the slider. The rear end of the main keel is provided with a slider clamping structure. The galvanized steel keel hanger includes an inverted "U"-shaped hook-fitting structure and a secondary keel snap-fitting structure arranged sequentially from top to bottom. The cross-section of the inverted "U"-shaped hook-fitting structure is adapted to the cross-section of the main keel. The top of the inverted "U"-shaped hook-fitting structure is provided with a positioning through hole adapted to the hanger positioning bolt. The bottom of the secondary keel snap-fitting structure is provided with a secondary keel snap-fit ​​interface adapted to the top plate of the secondary keel.

[0020] The position of the galvanized sheet keel hanging pieces can be adjusted according to the needs. The galvanized sheet keel hanging pieces are positioned by pressing down the hanging piece positioning bolts, and the positioning of the hanging piece positioning bolts is achieved by the slider clamping structure.

[0021] As a further preferred embodiment of the present invention, the slider clamping structure includes a clamping plate and a clamping bolt. The clamping plate is disposed in the slide groove at the rear end of the slider. The clamping bolt passes through the rear end plate of the main keel from the outside to the inside and is rotatably connected to the clamping plate disposed in the slide groove. The clamping bolt is threadedly connected to the rear end plate of the main keel.

[0022] Tightening the clamping bolts allows the clamping plate to be tightened and loosened. When the clamping plate is tightened, it presses against the slider, fixing the slider in place. When the clamping plate is loosened, the slider can slide within the groove.

[0023] A construction method for a prefabricated ceiling structure includes the following steps: drilling holes evenly on the ceiling according to design requirements; inserting expansion bolts into the anchor holes after drilling, and then quickly fixing the expansion bolts at the anchor holes using a quick-installation structure; after fixing the expansion bolts, installing the main keel flat at the "L"-shaped suspension structure of the hanger; adjusting the spacing of the secondary keel clamping structure according to design requirements, and then inserting the secondary keel into the bottom of the secondary keel clamping structure; finally, clamping the prepared ceiling panel between the secondary keels.

[0024] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: 1. This solution primarily improves the installation structure of expansion bolts. The original structure, which relied on an external wrench for installation, has been replaced with a dedicated quick-installation structure below the expansion bolts. This structure enables rapid installation without the need for an external wrench. The nut clip at the top of this targeted installation structure is prefabricated to fit the bolt nut, eliminating the need for adjustment. This makes installation more convenient and faster. Furthermore, this targeted installation structure facilitates the application of force, further improving installation efficiency. Finally, the existing main keel suspension structure has also been improved by changing it to an "L" suspension structure, allowing for faster installation of the main keel. During installation, the main keel is simply placed on top of the horizontal section of the "L" suspension structure, and then the main keel fixing bolts, located at the bolt holes in both the main keel and the suspension structure, are used to quickly connect the main keel to the "L" suspension structure, completing the installation and fixing of the main keel.

[0025] 2. When installing the ceiling, first insert the expansion bolt into the pre-drilled ceiling anchoring hole. Then, the installer holds the rotating sleeve and lifts it upwards, so that the inner cavity of the top nut engagements with the nut of the expansion bolt. Then, rotate the rotating sleeve to make the nut of the expansion bolt rotate. During the rotation of the nut, the bolt of the expansion bolt is driven downwards, which in turn causes the bolt head to move downwards and contact the expansion sleeve, causing it to expand and achieve expansion and fixation. This quick-installation mechanism for expansion bolts is convenient to use and can effectively improve anchoring efficiency. The force-applying short column on the outer wall of the rotating sleeve allows the installer to apply force more effectively.

[0026] 3. Since the top of the rotating sleeve will contact the washer above the nut when rotating, ball bearings are installed on the top of the rotating sleeve to reduce friction.

[0027] 4. Some existing ceiling systems require significant weight support. To meet these requirements, structural anchoring methods like expansion anchoring need to be replaced with chemical anchoring. However, chemical anchoring is cumbersome, requiring drilling, hole cleaning, adhesive injection, and then installation of hangers. Since there's no load-bearing structure after hanger installation, curing is necessary before subsequent installations can proceed. This is time-consuming and labor-intensive. To address these issues, this solution improves the expansion bolt by incorporating an adhesive fluid bladder on the inner surface of the expansion plate. When chemical anchoring is required, the adhesive fluid can be injected... A bag containing adhesive is installed at the structure of the expansion joint. When the bolt head moves downward, the structure of the bag breaks, causing the adhesive to flow out. When it reaches the adhesive blocking ring, it can no longer flow downward and instead flows out from the gap between the expansion plates, covering the outer wall of the expansion sleeve of the expansion bolt and connecting the expansion sleeve to the anchor hole. Because of the physical anchoring of the expansion bolt, no curing is required, and subsequent construction can continue. When construction reaches the point where a heavier ceiling panel needs to be lifted, the adhesive has already solidified, saving construction time. Moreover, it is a dual anchoring method of structural anchoring and chemical anchoring, making the anchoring more reliable.

[0028] 5. The capsule destruction puncture can penetrate into the capsule storage chamber and puncture the capsules that have been placed inside. After the capsule is punctured, the adhesive liquid will flow out through the capsule destruction opening.

[0029] 6. The evenly distributed short convex structure makes the adhesive liquid flow more evenly and hinders the flow speed of the adhesive liquid, so that most of the adhesive liquid remains at the short convex structure. This increases the contact area between the adhesive liquid and the outer wall of the sleeve, which makes the connection between the expansion sleeve and the anchor hole more stable after the adhesive liquid solidifies.

[0030] 7. The position of the galvanized sheet keel hanging plates can be adjusted according to the requirements. The galvanized sheet keel hanging plates are positioned by pressing down the hanging plate positioning bolts, and the positioning of the hanging plate positioning bolts is achieved by the slider clamping structure. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the connection structure between the main keel and the secondary keel of the present invention.

[0033] Figure 3 This is a schematic diagram of the expansion bolt of the present invention.

[0034] Figure 4 This is a schematic diagram of the adhesive liquid bladder bag assembly structure of the present invention.

[0035] Figure 5This is a top view of the rotating sleeve of the present invention.

[0036] Figure 6 This is a cross-sectional view of the slide groove of the present invention. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Specific Implementation Example 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 This invention illustrates a convenient and quick-installation prefabricated ceiling structure, comprising a hanger 1, a main keel 2, secondary keels 3, and a ceiling panel 4. The top of the hanger 1 is connected to the floor ceiling. The main keel 2 is horizontally positioned at the bottom of the hanger 1, and the secondary keels 3 are evenly distributed at the bottom of the main keel 2. The ceiling panel 4 is positioned at the bottom of the secondary keels 3. The top of the hanger 1 is provided with expansion bolts 5, and below the expansion bolts 5 is a quick-installation structure 6. The bottom of the hanger 1 is provided with a main keel suspension structure 7, which includes an "L"-shaped suspension structure. The main keel 2 has a main keel bolt through hole in the middle, and the vertical section of the "L"-shaped suspension structure has a suspension structure bolt hole that matches the main keel bolt through hole at the position opposite the main keel bolt through hole. The secondary keels 3 are fixed to the bottom of the main keel 2 by a secondary keel snap-fit ​​structure 8, and the ceiling panel 4 is snapped between the secondary keels 3.

[0044] This solution primarily improves the installation structure of expansion bolts. The original structure, which relied on an external wrench for installation, has been replaced with a dedicated quick-installation structure below the expansion bolts. This structure enables rapid installation without the need for an external wrench. During manufacturing, the nut clip at the top of the quick-installation structure is precisely sized to match the bolt nut, eliminating the need for adjustment. This makes installation more convenient and faster. Furthermore, this targeted installation structure facilitates the application of force, further improving installation efficiency. Finally, the existing main keel suspension structure has also been improved by changing it to an "L" suspension structure, allowing for faster main keel installation. During installation, the main keel is simply placed on top of the horizontal section of the "L" suspension structure, and then the main keel fixing bolts, located at the bolt holes in both the main keel and the suspension structure, are used to quickly connect the main keel to the "L" suspension structure, completing the installation and fixing of the main keel. Specific Implementation Example 2:

[0046] This embodiment further describes the quick-installation mechanism 6 for expansion bolts based on specific embodiment 1. The quick-installation mechanism 6 for expansion bolts includes a rotating sleeve 61 and a rotating sleeve limiting structure 62. The rotating sleeve limiting structure 62 includes a rod limiting outer ring 621 and a rotating sleeve limiting inner ring 622. The rod limiting outer ring 621 is fixed to the middle of the outer wall of the rod 1, and the rotating sleeve limiting inner ring 622 is fixed to the lower part of the inner wall of the rotating sleeve 61. The rotating sleeve 61 is sleeved on the outside of the rod 1. The rod limiting outer ring 621 is located below the rotating sleeve limiting inner ring 622. The upper part of the inner cavity of the rotating sleeve 61 is the nut tightening section. The horizontal cross section of the inner cavity of the nut tightening section is adapted to the nut 54 of the expansion bolt 5 for fixing the rod. The outer wall of the rotating sleeve 61 is provided with a force-applying short column 9.

[0047] When installing a suspended ceiling, first insert the expansion bolt into the pre-drilled anchoring hole. Then, the installer holds the rotating sleeve and lifts it upwards, causing the inner cavity of the top nut section to engage with the nut of the expansion bolt. Rotating the sleeve then causes the nut of the expansion bolt to turn, pulling the bolt head downwards and contacting the expansion sleeve to expand and secure it. This quick-installation mechanism for expansion bolts is convenient to use and effectively improves anchoring efficiency. The short force-applying column on the outer wall of the rotating sleeve allows the installer to apply force more effectively. Specific Implementation Example 3:

[0049] This embodiment further describes the rotating sleeve 61 based on specific embodiment 2. The top of the rotating sleeve 61 is uniformly engaged with ball bearings 611.

[0050] Because the top of the rotating sleeve contacts the washer above the nut when it rotates, ball bearings are installed on the top of the rotating sleeve to reduce friction. Specific Implementation Example 4:

[0052] This embodiment further describes the expansion bolt 5 based on specific embodiment 1. The expansion bolt 5 includes a bolt head 51, a screw 52, ​​an expansion sleeve 53, and a nut 54. The bolt head 51 has a tapered longitudinal section and is located at the top of the screw 52. The screw 52 includes a rod section and a threaded section arranged sequentially from top to bottom. The expansion sleeve 53 is sleeved on the rod section. The upper part of the expansion sleeve 53 is an expansion portion 531, which is composed of evenly distributed expansion plates. The nut 54 is threadedly connected to the threaded section. A washer 55 is provided between the nut 54 and the expansion sleeve 53. The bottom of the screw 52 is fixedly connected to the lifting rod 1.

[0053] The screw drives the tapered bolt head downward to cooperate with the expansion plate to achieve expansion anchoring. Specific Implementation Example 5:

[0055] This embodiment further describes the expansion sleeve 53 based on specific embodiment 4. The inner surface of the expansion plate of the expansion sleeve 53 is provided with an adhesive liquid bag loading structure 10. The lower part of the bolt head 51 is provided with a bag breaking structure 11 at the position directly opposite the adhesive liquid bag loading structure 10. The lower part of the expansion sleeve 53 is the sleeve body part. The upper part of the inner surface of the sleeve body part is provided with an adhesive liquid blocking ring 12. The inner ring wall of the adhesive liquid blocking ring 12 is in contact with the outer wall of the rod section.

[0056] In existing technologies, some suspended ceilings need to bear significant weight. To meet these requirements, structural anchoring methods like expansion anchoring need to be replaced with chemical anchoring. However, chemical anchoring is cumbersome to implement. After drilling, the holes need to be cleaned, then adhesive is injected, and finally, the hangers are installed. After the hangers are installed, since there is no load-bearing structure, curing is required before further installation work can proceed. This is time-consuming and labor-intensive. To solve these problems, this solution improves the expansion bolt by incorporating an adhesive liquid bladder on the inner surface of the expansion plate. When chemical anchoring is required, the adhesive liquid bladder can be used for installation. A bag containing adhesive is installed at the structure of the expansion joint. When the bolt head moves downward, the bag is destroyed by the structure, allowing the adhesive to flow out. When the adhesive reaches the adhesive blocking ring, it cannot flow further downward and instead flows out from the gaps between the expansion plates, covering the outer wall of the expansion sleeve of the expansion bolt and connecting the expansion sleeve to the anchor hole. Because of the physical anchoring of the expansion bolt, no curing is required, and subsequent construction can continue. When construction reaches the point where a heavier ceiling panel needs to be lifted, the adhesive has already solidified, saving construction time. Moreover, it is a dual anchoring method of structural anchoring and chemical anchoring, making the anchoring more reliable. Specific Implementation Example 6:

[0058] This embodiment further describes the adhesive liquid bag mounting structure 10 based on specific embodiment 5. The adhesive liquid bag mounting structure 10 includes a bag storage chamber. A bag breaking opening 101 is provided at the middle position of the bottom plate and the wall of the bag storage chamber. The bag breaking structure 11 is a bag breaking spike adapted to the bag breaking opening 101. The bag breaking spike is inclined and facing the bag breaking opening 101.

[0059] The capsule destruction puncture can penetrate into the capsule storage chamber and puncture the capsules that have been pre-loaded inside. Once the capsule is punctured, the adhesive fluid will flow out through the puncture opening. Specific Implementation Example 7:

[0061] This embodiment further describes the main body of the sleeve based on specific embodiment 5. The outer wall of the main body of the sleeve is also uniformly provided with short convex structures 13.

[0062] The evenly distributed short convex structures allow the adhesive liquid to be distributed more evenly and also impede the flow rate of the adhesive liquid, causing most of the adhesive liquid to remain at the short convex structures. This increases the contact area between the adhesive liquid and the outer wall of the sleeve, making the connection between the expansion sleeve and the anchor hole more stable after the adhesive liquid solidifies. Specific Implementation Example 8:

[0064] This embodiment further describes the main body of the sleeve based on specific embodiment 1. The secondary keel snap-fit ​​structure 8 includes a galvanized steel keel hanger 81 and a keel hanger positioning structure 82. The top surface of the main keel 2 has a groove 21, and a slider 14 is provided in the groove 21. The top of the slider 14 is provided with a hanger positioning bolt, which serves as the keel hanger positioning structure 82. The lower part of the hanger positioning bolt is threadedly connected to the slider 14. The rear end of the main keel 2... The galvanized steel keel hanging plate 81 is equipped with a slider pressing structure. It includes an inverted "U"-shaped hanging structure part 811 and a secondary keel snap-fit ​​structure part 812 arranged from top to bottom. The cross section of the inverted "U"-shaped hanging structure part 811 is adapted to the cross section of the main keel 2. The top of the inverted "U"-shaped hanging structure part 811 is provided with a positioning through hole adapted to the hanging plate positioning bolt. The bottom of the secondary keel snap-fit ​​structure part 812 is provided with a secondary keel snap-fit ​​interface adapted to the top plate of the secondary keel 3.

[0065] The position of the galvanized sheet keel hanging pieces can be adjusted according to the needs. The galvanized sheet keel hanging pieces are positioned by pressing down the hanging piece positioning bolts, and the positioning of the hanging piece positioning bolts is achieved by the slider clamping structure. Specific Implementation Example 9:

[0067] This embodiment further describes the slider clamping structure based on specific embodiment 1. The slider clamping structure includes a clamping plate 15 and a clamping bolt 16. The clamping plate 15 is disposed in the slide groove 21 at the rear end of the slider 14. The clamping bolt 16 passes through the rear end plate of the main keel 2 from the outside to the inside and is rotatably connected to the clamping plate 15 disposed in the slide groove 21. The clamping bolt 16 is threadedly connected to the rear end plate of the main keel 2.

[0068] Tightening the clamping bolts allows the clamping plate to be tightened and loosened. When the clamping plate is tightened, it presses against the slider, fixing the slider in place. When the clamping plate is loosened, the slider can slide within the groove. Specific Implementation Example 10: A construction method for a prefabricated ceiling structure includes the following steps: drilling holes evenly on the ceiling according to design requirements; inserting expansion bolts 5 into the anchor holes after drilling, and then quickly fixing the expansion bolts 5 at the anchor holes using the quick-installation structure 6; after fixing the expansion bolts 5, installing the main keel 2 flat at the "L"-shaped suspension structure of the hanger 1; adjusting the spacing of the secondary keel clamping structure according to design requirements, and then inserting the secondary keel 3 into the bottom of the secondary keel clamping structure 8; finally, clamping the prepared ceiling panel 4 between the secondary keels 3.

[0070] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated ceiling structure that is easy and quick to install, comprising a hanger (1), a main keel (2), a secondary keel (3), and a ceiling panel (4), wherein the top of the hanger (1) is connected to the ceiling slab, the main keel (2) is horizontally arranged at the bottom of the hanger (1), the secondary keels (3) are evenly arranged at the bottom of the main keel (2), and the ceiling panel (4) is arranged at the bottom of the secondary keels (3), characterized in that: The top of the hanger (1) is provided with an expansion bolt (5), and the bottom of the expansion bolt (5) is provided with an expansion bolt quick-installation structure (6). The bottom of the hanger (1) is provided with a main keel suspension structure (7). The main keel suspension structure (7) includes an "L"-shaped suspension structure. The middle part of the main keel (2) is provided with a main keel bolt through hole. The vertical section of the "L"-shaped suspension structure is provided with a suspension structure bolt hole that matches the main keel bolt through hole. The secondary keel (3) is fixed to the bottom of the main keel (2) by a secondary keel snap-fit ​​structure (8). The ceiling panel (4) is snapped between the secondary keels (3).

2. The prefabricated ceiling structure for convenient and rapid installation according to claim 1, characterized in that: The expansion bolt quick-installation mechanism (6) includes a rotating sleeve (61) and a rotating sleeve limiting structure (62). The rotating sleeve limiting structure (62) includes a rod limiting outer ring (621) and a rotating sleeve limiting inner ring (622). The rod limiting outer ring (621) is fixed in the middle of the outer wall of the rod (1), and the rotating sleeve limiting inner ring (622) is fixed in the lower part of the inner wall of the rotating sleeve (61). The rotating sleeve (61) is sleeved on the outside of the rod (1). The rod limiting outer ring (621) is located below the rotating sleeve limiting inner ring (622). The upper part of the inner cavity of the rotating sleeve (61) is the nut tightening section. The horizontal cross section of the inner cavity of the nut tightening section is adapted to the nut (54) of the expansion bolt (5) for fixing the rod. The outer wall of the rotating sleeve (61) is provided with a force-applying short column (9).

3. The prefabricated ceiling structure for convenient and rapid installation according to claim 2, characterized in that: The top of the rotating sleeve (61) is evenly fitted with balls (611).

4. The prefabricated ceiling structure for convenient and rapid installation according to claim 1, characterized in that: The expansion bolt (5) includes a bolt head (51), a screw (52), an expansion sleeve (53), and a nut (54). The bolt head (51) has a tapered longitudinal section and is located at the top of the screw (52). The screw (52) includes a rod section and a threaded section arranged sequentially from top to bottom. The expansion sleeve (53) is sleeved on the outside of the rod section. The upper part of the expansion sleeve (53) is an expansion part (531), which is composed of evenly distributed expansion plates. The nut (54) is threadedly connected to the threaded section. A washer (55) is provided between the nut (54) and the expansion sleeve (53). The bottom of the screw (52) is fixedly connected to the lifting rod (1).

5. The prefabricated ceiling structure for convenient and rapid installation according to claim 4, characterized in that: The inner surface of the expansion sleeve (53) is provided with an adhesive liquid bladder loading structure (10). The lower part of the bolt head (51) is provided with a bladder breaking structure (11) at the position directly opposite the adhesive liquid bladder loading structure (10). The lower part of the expansion sleeve (53) is the sleeve body. The upper part of the inner surface of the sleeve body is provided with an adhesive liquid blocking ring (12). The inner ring wall of the adhesive liquid blocking ring (12) is in contact with the outer wall of the rod section.

6. The prefabricated ceiling structure for convenient and rapid installation according to claim 5, characterized in that: The adhesive liquid bag mounting structure (10) includes a bag storage chamber. A bag destruction opening (101) is provided at the middle position of the bottom plate and the wall of the bag storage chamber. The bag destruction structure (11) is a bag destruction spike adapted to the bag destruction opening (101). The bag destruction spike is inclined to face the bag destruction opening (101).

7. The prefabricated ceiling structure for convenient and rapid installation according to claim 5, characterized in that: The outer wall of the main body of the sleeve is also uniformly provided with short convex structures (13).

8. The prefabricated ceiling structure for convenient and rapid installation according to claim 1, characterized in that: The secondary keel snap-fit ​​structure (8) includes a galvanized steel keel hanger (81) and a keel hanger positioning structure (82). The top surface of the main keel (2) is provided with a groove (21), and a slider (14) is provided in the groove (21). The top of the slider (14) is provided with a hanger positioning bolt, which serves as the keel hanger positioning structure (82). The lower part of the hanger positioning bolt is threadedly connected to the slider (14). The rear end of the main keel (2) is provided with a slider clamping structure. The galvanized steel... The plate keel hanging plate (81) includes an inverted "U"-shaped hanging structure (811) and a secondary keel snap-fit ​​structure (812) arranged sequentially from top to bottom. The cross section of the inverted "U"-shaped hanging structure (811) is adapted to the cross section of the main keel (2). The top of the inverted "U"-shaped hanging structure (811) is provided with a positioning through hole adapted to the hanging plate positioning bolt. The bottom of the secondary keel snap-fit ​​structure (812) is provided with a secondary keel snap-fit ​​interface adapted to the top plate of the secondary keel (3).

9. The prefabricated ceiling structure for convenient and rapid installation according to claim 8, characterized in that: The slider clamping structure includes a clamping plate (15) and a clamping bolt (16). The clamping plate (15) is located in the slide groove (21) at the rear end of the slider (14). The clamping bolt (16) passes through the rear end plate of the main keel (2) from the outside to the inside and is rotatably connected to the clamping plate (15) located in the slide groove (21). The clamping bolt (16) is threadedly connected to the rear end plate of the main keel (2).

10. A construction method for a prefabricated ceiling structure, characterized in that: The prefabricated ceiling structure with convenient and quick installation according to any one of claims 1-9 includes the following steps: drilling holes on the ceiling according to the design requirements, and evenly drilling anchor holes; after drilling the anchor holes, inserting the expansion bolts (5) into the anchor holes, and then using the expansion bolt quick-installation structure (6) to quickly fix the expansion bolts (5) at the anchor holes; after fixing the expansion bolts (5), laying the main keel (2) flat and installing it at the "L"-shaped suspension structure of the hanger (1); adjusting the spacing of the secondary keel snap-fit ​​structure according to the design requirements, and then snapping the secondary keel (3) into the bottom of the secondary keel snap-fit ​​structure (8); finally snapping the prepared ceiling panel (4) between the secondary keels (3).

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