Fabricated fire-resistant and flame-retardant suspended ceiling hanging installation structure

Abstract

The invention relates to the field of ceiling construction, in particular to an assembly type fire-resistant flame-retardant suspended ceiling hanging installation structure which comprises a hanging rail, a fire-resistant flame-retardant plate is laid on the hanging rail, a plurality of hanging brackets are connected to the upper end of the hanging rail, a control shaft is rotatably installed in the middle of each hanging bracket in a penetrating mode, and a positioning piece is arranged between each hanging bracket and the corresponding control shaft. Two top frames symmetrically extend from the outer surface of the control shaft, an upper sliding frame is slidably mounted on the upper portion of the front end of the hanging bracket, a sliding seat extends from the lower portion of the front end of the hanging bracket, a lower sliding frame is slidably mounted in the sliding seat in a penetrating mode, Y-shaped connecting frames are obliquely and rotationally mounted at the ends of the two top frames, and the two Y-shaped connecting frames are oppositely arranged. And the Y-shaped connecting frame at the upper part is rotationally connected with the lower end part of the upper sliding frame. The overall stability of follow-up construction and the ceiling is improved, the construction efficiency of the ceiling is improved, and meanwhile use is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ceiling construction, in particular to a kind of assembled fire-resistant suspended ceiling hanging installation structure. BACKGROUND

[0002] Suspended ceiling is also called ceiling, roof, ceiling or ceiling, which is a decorative component located under the floor or roof surface of building. It not only beautifies the space, but also has the functions of heat preservation, heat insulation, sound insulation and sound absorption. At the same time, according to different space requirements such as kitchen oil stain resistance, bathroom moisture resistance, living room style improvement, etc., suitable materials and styles can be selected to become the key component of improving the overall decoration quality and use comfort of indoor.

[0003] When carrying out suspended ceiling construction on the building with relatively flat indoor top surface, it is usually necessary to first set a lifting ring on the top surface, and then connect the lifting hook of the lifting rail with the lifting ring, so as to build the basic hanging structure of the suspended ceiling. However, this connection method relying on the hanging of the lifting hook and the lifting ring has obvious problem of insufficient stability, that is, the lifting rail is easy to shake after hanging, and it is difficult to form a stable support foundation, which may cause hidden troubles for subsequent construction and overall stability of the suspended ceiling. In addition, after laying the fire-resistant board above the lifting rail, a plurality of self-tapping screws are used to fix the board and the lifting rail point by point, and the whole screwing operation process is complicated and time-consuming, which directly leads to low overall efficiency of the suspended ceiling construction. SUMMARY

[0004] The purpose of the present application is to solve the problems in the background art and provide an assembled fire-resistant suspended ceiling hanging installation structure.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows: an assembled fire-resistant suspended ceiling hanging installation structure, comprising a lifting rail, a fire-resistant board is laid on the lifting rail, a plurality of lifting frames are connected to the upper end of the lifting rail, a control shaft is rotatably installed in the middle of the lifting frame, a positioning piece is arranged between the lifting frame and the control shaft, two top frames are symmetrically extended on the outer surface of the control shaft, an upper sliding frame is slidingly installed on the upper end of the front end of the lifting frame, a sliding seat is extended on the lower end of the front end of the lifting frame, a lower sliding frame is slidingly installed in the inside of the sliding seat, a Y-shaped connecting frame is obliquely rotatably installed on the end of each of the two top frames, the two Y-shaped connecting frames are oppositely arranged, the upper Y-shaped connecting frame is rotatably connected with the lower end of the upper sliding frame, the lower Y-shaped connecting frame is rotatably connected with the upper end of the lower sliding frame, an expansion bolt is arranged above the lifting frame, a lifting ring is connected to the stud of the expansion bolt, an arc-shaped lifting seat is clamped to the inner lower part of the lifting ring, the arc-shaped lifting seat is fixed to the lifting frame, a limiting sleeve is fixedly installed on the upper end of the upper sliding frame, the limiting sleeve is inserted into the stud end of the expansion bolt, and a pressing plate is connected to the lower end of the lower sliding frame.

[0006] Preferably, the upper end of the hanging rail extends a plug-in lug which is plugged with the bottom of the hanging bracket, and a screw is screwed through between the hanging bracket and the plug-in lug.

[0007] Preferably, the middle part of the arc-shaped hanging seat is fixedly installed with a guide sleeve, the inside of the guide sleeve is slidably installed with a sleeve column which penetrates out from the upper end of the guide sleeve, and the upper end of the sleeve column is fixed with the lower end of a limiting sleeve.

[0008] Preferably, the upper part of the hanging ring is embedded with a ring sleeve which is integrally formed with the hanging ring, the ring sleeve is sleeved on the outside of the stud of the expansion bolt, the stud of the expansion bolt is screwed with a nut on the outer surface, and the nut is tightly pressed on the ring sleeve.

[0009] Preferably, the pressing plate member comprises two open web plates which are symmetrically and slidably installed on the lower part of the hanging bracket, the front and rear end faces of the two open web plates are fixedly installed with a hat bracket, the end part of the hat bracket is embedded with a pressing plate cap, the pressing plate cap is tightly pressed on the fire-resistant and flame-retardant plate, and the lower end of the lower sliding bracket is fixed with the front hat bracket.

[0010] Preferably, the positioning member comprises a stepped column which is elastically installed on the middle part of the side face of the hanging bracket, the outer surface of the control shaft is provided with a fixed hole, and the small-diameter section of the stepped column penetrates through the side face of the hanging bracket and is plugged into the inside of the fixed hole.

[0011] Preferably, the inside of the control shaft is coaxially slidably installed with a prism which penetrates out from the front end of the control shaft, the end part of the prism coaxially extends a boss, the front end of the boss is embedded with a torsion plate, the outer surface of the boss is coaxially rotatably installed with a connecting ring, and the connecting ring is connected with the release bracket between the stepped column.

[0012] Preferably, the middle part of the side face of the hanging bracket is fixedly installed with a slotted shell, the stepped column is slidably installed in the inside of the slotted shell, the small-diameter section of the stepped column penetrates out from the end part of the slotted shell, a return spring is fixedly installed between the inside side face of the slotted shell and the end part of the stepped column, the front end of the stepped column extends a connecting seat which extends out from the slot of the slotted shell, one end of the release bracket is rotatably connected with the inside of the connecting seat, the side face of the connecting ring extends a slot seat, and the other end of the release bracket is rotatably connected with the inside of the slot seat.

[0013] Compared with the prior art, the present application has the following beneficial effects: 1、When the arc-shaped hanging seat and the hanging ring of the indoor top surface are hung together, the control shaft can be rotated, thereby driving the upper top frame to push the Y-shaped connecting frame to move, so as to drive the upper sliding frame to move upwards, thereby driving the limiting sleeve to move upwards and be inserted into the end portion of the stud of the expansion bolt, so as to strengthen the limitation of the arc-shaped hanging seat under the cooperation of the limiting sleeve and the stud of the expansion bolt, so that the arc-shaped hanging seat and the hanging ring can be hung together tightly, so as to avoid the shaking of the hanging rail, thereby improving the overall stability of the subsequent construction and the suspended ceiling.

[0014] 2、When the control shaft is rotated, the lower top frame will also be driven to push the Y-shaped connecting frame to move, so as to drive the lower sliding frame to move downwards, thereby driving the pressing plate cap on the cap frame to move downwards, so as to press and fix the laid fire-resistant board on the hanging rail, which replaces the way of fixing the fire-resistant board and the hanging rail by rotating a plurality of self-tapping screws, effectively shortens the time consumption, and improves the efficiency of the suspended ceiling construction.

[0015] 3、When the control shaft is rotated, the small diameter section of the stepped column will be pushed out under the action of the reset spring and inserted into the fixing hole on the control shaft, so as to position the control shaft automatically, thereby keeping the pressing plate cap in the state of being pressed on the fire-resistant board and keeping the limiting sleeve in the state of being inserted into the end portion of the stud of the expansion bolt, which does not need to position the control shaft separately, is simple to operate, and effectively facilitates the use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of a fabricated fire-resistant suspended ceiling hanging installation structure of the application; Figure 2 It is a structural schematic view of a fabricated fire-resistant suspended ceiling hanging installation structure of the application; Figure 1 It is an enlarged view of A in the figure; Figure 3 It is an enlarged view of B in the figure; Figure 1 Figure 4 It is an enlarged view of C in the figure; Figure 1 Figure 5 It is a cross-sectional view of the slotted shell of the fabricated fire-resistant suspended ceiling hanging installation structure of the application; Figure 6 It is a schematic view of the hanging ring of the fabricated fire-resistant suspended ceiling hanging installation structure of the application; Figure 7 It is a schematic view of the cap frame of the fabricated fire-resistant suspended ceiling hanging installation structure of the application; Figure 8 It is a connecting cross-sectional view of the hanging bracket and the hanging rail of the fabricated fire-resistant suspended ceiling hanging installation structure of the application; Figure 9 ​​This is a schematic diagram of the arc-shaped hanging seat of the prefabricated fire-resistant and flame-retardant ceiling hanging installation structure of the present invention; Figure 10 This is a schematic diagram of the expansion bolts of a prefabricated fire-resistant and flame-retardant ceiling hanging installation structure according to the present invention.

[0017] In the diagram: 1. Fire-resistant and flame-retardant board; 2. Expansion bolt; 3. Lifting ring; 4. Hanger; 5. Control shaft; 6. Release frame; 7. Slotted shell; 8. Connecting seat; 9. Top frame; 10. Upper slide; 11. Y-shaped connecting frame; 12. Lower slide; 13. Torsion plate; 14. Prism; 15. Slide seat; 16. Cap frame; 17. Pressure plate cap; 18. Lifting rail; 19. Fixing hole; 20. Stepped column; 21. Return spring; 22. Slot seat; 23. Connecting ring; 24. Boss; 25. Ring sleeve; 26. Nut; 27. Restricting sleeve; 28. Arc-shaped hanger; 29. ​​Screw; 30. Insertion lug; 31. Sleeve column; 32. Guide sleeve; 33. Open connecting plate. Detailed Implementation

[0018] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0019] like Figures 1-10The diagram shows a prefabricated fire-resistant and flame-retardant ceiling hanging installation structure, including a hanging rail 18 on which a fire-resistant and flame-retardant board 1 is laid. The hanging rail 18 serves to support the fire-resistant and flame-retardant board 1. Multiple hangers 4 are connected to the upper end of the hanging rail 18, which suspends the hanging rail 18. A control shaft 5 is rotatably mounted through the middle of the hanger 4. A positioning element is provided between the hanger 4 and the control shaft 5. Two top brackets 9 extend symmetrically from the outer surface of the control shaft 5. An upper slide bracket is slidably mounted on the upper front end of the hanger 4. 10. A slide 15 extends from the lower front end of the hanger 4. A lower slide 12 is slidably installed inside the slide 15, which serves to allow the lower slide 12 to slide. Y-shaped connectors 11 are rotatably mounted at the ends of both top frames 9. The two Y-shaped connectors 11 are arranged oppositely, allowing the upper slide 10 and the lower slide 12 to move in opposite directions. The upper Y-shaped connector 11 is rotatably connected to the lower end of the upper slide 10, and the lower Y-shaped connector 11 is rotatably connected to the upper end of the lower slide 12. The upper part of the hanger 4... An expansion bolt 2 is provided, and a lifting ring 3 is connected to the stud of the expansion bolt 2. The expansion bolt 2 serves to install the lifting ring 3 to the indoor ceiling. An arc-shaped hanging seat 28 is engaged with the lower inner part of the lifting ring 3. The arc-shaped hanging seat 28 is fixed to the hanger 4 and serves to engage with the lifting ring 3. A limiting sleeve 27 is fixedly installed at the upper end of the upper slide 10. The limiting sleeve 27 is inserted into the end of the stud of the expansion bolt 2. A pressure plate is connected to the lower end of the lower slide 12. When the arc-shaped hanging seat 28 and the indoor ceiling are engaged... After the lifting ring 3 is engaged, the control shaft 5 can be rotated, which in turn drives the upper top frame 9 to push the Y-shaped connecting frame 11 to move, thereby driving the upper slide frame 10 to move upward, which in turn drives the limiting sleeve 27 to move upward, so that the limiting sleeve 27 is inserted into the stud end of the expansion bolt 2. With the cooperation of the limiting sleeve 27 and the stud of the expansion bolt 2, the restriction on the arc-shaped hanging seat 28 is strengthened, so that the arc-shaped hanging seat 28 and the lifting ring 3 can be firmly engaged together to prevent the hanging rail 18 from shaking, thereby improving the overall stability of subsequent construction and the ceiling.

[0020] The upper end of the hanging rail 18 extends into a connector 30, which is inserted into the bottom of the hanger 4. A screw 29 is screwed through and tightened between the hanger 4 and the connector 30. The connector 30 and the screw 29 facilitate the disassembly of the hanging rail 18 and the hanger 4 for transportation.

[0021] A guide sleeve 32 is fixedly installed in the middle of the arc-shaped hanging base 28. A sleeve post 31 is slidably installed inside the guide sleeve 32. The sleeve post 31 extends through the upper end of the guide sleeve 32. The guide sleeve 32 and the sleeve post 31 play a role in strengthening the guidance of the restricting sleeve 27. The upper end of the sleeve post 31 is fixed to the lower end of the restricting sleeve 27.

[0022] A ring 25 is inlaid through the upper part of the lifting ring 3. The ring 25 is integrally formed with the lifting ring 3. The ring 25 is sleeved on the outside of the stud of the expansion bolt 2. A nut 26 is screwed on the outer surface of the stud of the expansion bolt 2. The nut 26 is tightened on the ring 25. After the expansion bolt 2 is fixed to the indoor ceiling, the ring 25 on the lifting ring 3 can be sleeved on the stud of the expansion bolt 2, and the nut 26 and the stud of the expansion bolt 2 can be tightened to clamp and fix the ring 25, so that the lifting ring 3 and the expansion bolt 2 are connected together, and then the lifting ring 3 can be installed on the indoor ceiling.

[0023] The pressure plate component includes two open connecting plates 33 symmetrically slidably installed on the lower part of the hanger 4. A cap frame 16 is fixedly installed between the front and rear end faces of the two open connecting plates 33. The open connecting plates 33 can fix the two cap frames 16 together on the one hand, and strengthen the guidance of the cap frames 16 on the other hand. The end of the cap frame 16 is embedded with a pressure plate cap 17. The cap frame 16 plays the role of bearing the pressure plate cap 17. The pressure plate cap 17 is pressed against the fire-resistant and flame-retardant board 1. The lower end of the sliding frame 12 is fixed to the front cap frame 16. When the control shaft 5 is rotated, it will drive the lower top frame 9 to push the Y-shaped connecting frame 11 to move, thereby driving the sliding frame 12 to move down, and then driving the pressure plate cap 17 on the cap frame 16 to move down, so as to press the laid fire-resistant and flame-retardant board 1 onto the hanging rail 18 for fixation. This process replaces the method of fixing the fire-resistant and flame-retardant board 1 and the hanging rail 18 by tightening multiple self-tapping screws, effectively shortening the time and improving the efficiency of ceiling construction.

[0024] The positioning component includes a stepped column 20 elastically installed in the middle of the side of the hanger 4. A fixing hole 19 is provided on the outer surface of the control shaft 5. The stepped column 20 and the fixing hole 19 serve to position the control shaft 5 after rotation. The small diameter section of the stepped column 20 passes through the side of the hanger 4 and is inserted into the inside of the fixing hole 19. After the control shaft 5 is rotated, the small diameter section of the stepped column 20 will be pushed out by the action of the return spring 21 and inserted into the fixing hole 19 on the control shaft 5 to position the control shaft 5 by itself. This keeps the pressure plate cap 17 pressed against the fire-resistant and flame-retardant plate 1 and the limiting sleeve 27 inserted into the stud end of the expansion bolt 2. The process does not require separate positioning of the control shaft 5, making the operation simple and convenient.

[0025] A prism 14 is coaxially slidably mounted inside the control shaft 5. The prism 14 extends through the front end of the control shaft 5. The prism 14 allows the torsion plate 13 to be pressed normally and ensures that the torsion plate 13 and the control shaft 5 rotate synchronously. A boss 24 extends coaxially from the end of the prism 14. The torsion plate 13 is embedded through the front end of the boss 24. The torsion plate 13 facilitates the rotation of the control shaft 5. A connecting ring 23 is coaxially rotatably mounted on the outer surface of the boss 24. The connecting ring 23 ensures that the rotation of the torsion plate 13 is not obstructed. A release bracket 6 is connected between the connecting ring 23 and the stepped column 20. When the torsion plate 13 is pressed in the direction of the control shaft 5, the release bracket 6 moves under the push of the torsion plate 13 to move the stepped column 20, so that the small diameter section of the stepped column 20 is disengaged from the fixing hole 19, thereby releasing the positioning of the control shaft 5.

[0026] A slotted shell 7 is fixedly installed on the middle of the side of the hanger 4. The stepped column 20 is slidably installed inside the slotted shell 7. The slotted shell 7 serves to support the stepped column 20. The small-diameter section of the stepped column 20 extends through the end of the slotted shell 7. A return spring 21 is fixedly installed between the inner side of the slotted shell 7 and the end of the stepped column 20. The return spring 21 serves to push the stepped column 20 out of the slotted shell 7. A connecting seat 8 extends from the front end of the stepped column 20. The connecting seat 8 extends out from the slot of the slotted shell 7. One end of the release frame 6 is rotatably connected to the inside of the connecting seat 8. The connecting seat 8 serves to facilitate the connection of the release frame 6 and the stepped column 20 together. A slotted seat 22 extends from the side of the connecting ring 23. The other end of the release frame 6 is rotatably connected to the inside of the slotted seat 22. The slotted seat 22 serves to facilitate the connection of the release frame 6 and the connecting ring 23 together.

[0027] In use, holes can be drilled in the indoor ceiling first, and then the lifting ring 3 can be fixed to the indoor ceiling using expansion bolts 2. Next, the arc-shaped hanging seat 28 and the lifting ring 3 on the indoor ceiling can be hooked together. Then, the fire-resistant and flame-retardant board 1 can be laid on the hanging rail 18. Then, the control shaft 5 can be rotated to drive the upper top frame 9 to push the Y-shaped connecting frame 11 to move, thereby driving the upper slide 10 to move upward, which in turn drives the limiting sleeve 27 to move upward, so that the limiting sleeve 27 is inserted into the stud end of the expansion bolt 2, so that the limiting sleeve 27 and the expansion bolt 2 are in place. The studs of bolt 2 reinforce the restraint on the arc-shaped hanger 28, ensuring that the arc-shaped hanger 28 and the lifting ring 3 are firmly engaged to prevent the hanging rail 18 from swaying, thereby improving the stability of the hanging rail 18. Simultaneously, the rotating control shaft 5 drives the lower top frame 9 to push the Y-shaped connecting frame 11, causing the lower slide frame 12 to move downwards, which in turn causes the pressure plate cap 17 on the cap frame 16 to move downwards, pressing the laid fire-resistant and flame-retardant board 1 firmly onto the hanging rail 18 for fixation. Once the control shaft 5 has rotated, the... The small-diameter section of the ladder column 20 is pushed out by the return spring 21 and inserted into the fixing hole 19 on the control shaft 5, thereby positioning the control shaft 5. This keeps the pressure plate cap 17 pressed against the fire-resistant and flame-retardant plate 1 and the limiting sleeve 27 inserted into the stud end of the expansion bolt 2. This process is repeated to suspend the fire-resistant and flame-retardant plate 1 on the indoor ceiling. If disassembly is required, the torsion plate 13 can be pressed towards the control shaft 5 to release the tension. The frame 6 moves under the push of the torsion plate 13, which drives the step column 20 to move, so that the small diameter section of the step column 20 is disengaged from the fixing hole 19, thereby releasing the positioning of the control shaft 5. Then the torsion plate 13 can be rotated to drive the control shaft 5 to reverse, so that the pressure plate cap 17 and the limiting sleeve 27 are reset. Then the fire-resistant and flame-retardant plate 1, the hanging rail 18, etc. can be removed. The process only requires pressing the torsion plate 13 and rotating it to reset. There is no need to operate separately to pull out the step column 20 and then rotate it. The operation is simple and convenient.

[0028] 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 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 claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A prefabricated fire-resistant and flame-retardant ceiling hanging installation structure, comprising a hanging rail (18), wherein a fire-resistant and flame-retardant board (1) is laid on the hanging rail (18), characterized in that: The upper end of the hanging rail (18) is connected to multiple hangers (4). A control shaft (5) is rotatably mounted through the middle of the hanger (4). A positioning element is provided between the hanger (4) and the control shaft (5). Two top brackets (9) extend symmetrically from the outer surface of the control shaft (5). An upper slide (10) is slidably mounted on the upper front end of the hanger (4). A slide seat (15) extends from the lower front end of the hanger (4). A lower slide seat (12) is slidably mounted inside the slide seat (15). Y-shaped connecting brackets (11) are rotatably mounted at the ends of the two top brackets (9). The two Y-shaped connecting brackets (11) are arranged oppositely, with the upper... The Y-shaped bracket (11) is rotatably connected to the lower end of the upper slide (10), and the lower Y-shaped bracket (11) is rotatably connected to the upper end of the lower slide (12). An expansion bolt (2) is provided above the hanger (4), and a lifting ring (3) is connected to the stud of the expansion bolt (2). An arc-shaped hanging seat (28) is engaged on the lower inner side of the lifting ring (3). The arc-shaped hanging seat (28) is fixed to the hanger (4). A limiting sleeve (27) is fixedly installed on the upper end of the upper slide (10). The limiting sleeve (27) is inserted into the stud end of the expansion bolt (2). A pressure plate is connected to the lower end of the lower slide (12).

2. The prefabricated fire-resistant and flame-retardant ceiling hanging installation structure according to claim 1, characterized in that: The upper end of the hanging rail (18) extends into a plug-in ear (30), which is inserted into the bottom of the hanger (4), and a screw (29) is screwed through and tightened between the hanger (4) and the plug-in ear (30).

3. The prefabricated fire-resistant and flame-retardant ceiling hanging installation structure according to claim 1, characterized in that: A guide sleeve (32) is fixedly installed in the middle of the arc-shaped hanging seat (28). A sleeve post (31) is slidably installed inside the guide sleeve (32). The sleeve post (31) extends through the upper end of the guide sleeve (32), and the upper end of the sleeve post (31) is fixed to the lower end of the limiting sleeve (27).

4. The prefabricated fire-resistant and flame-retardant ceiling hanging installation structure according to claim 1, characterized in that: The upper part of the lifting ring (3) is inlaid with a ring sleeve (25), the ring sleeve (25) is integrally formed with the lifting ring (3), the ring sleeve (25) is sleeved on the outside of the stud of the expansion bolt (2), and a nut (26) is screwed on the outer surface of the stud of the expansion bolt (2), the nut (26) is pressed against the ring sleeve (25).

5. The prefabricated fire-resistant and flame-retardant ceiling hanging installation structure according to claim 1, characterized in that: The pressure plate component includes two open plates (33) symmetrically slidably installed on the lower part of the hanger (4). A cap frame (16) is fixedly installed between the front and rear end faces of the two open plates (33). A pressure plate cap (17) is embedded through the end of the cap frame (16). The pressure plate cap (17) is pressed against the fire-resistant and flame-retardant plate (1). The lower end of the sliding frame (12) is fixed to the cap frame (16) in front.

6. The prefabricated fire-resistant and flame-retardant ceiling hanging installation structure according to claim 1, characterized in that: The positioning component includes a stepped column (20) elastically mounted on the middle of the side of the hanger (4), and a fixing hole (19) is provided on the outer surface of the control shaft (5). The small diameter section of the stepped column (20) passes through the side of the hanger (4) and is inserted into the interior of the fixing hole (19).

7. The prefabricated fire-resistant and flame-retardant ceiling hanging installation structure according to claim 6, characterized in that: A prism (14) is coaxially slidably mounted inside the control shaft (5). The prism (14) extends through the front end of the control shaft (5). A boss (24) extends coaxially from the end of the prism (14). A torsion plate (13) is embedded through the front end of the boss (24). A connecting ring (23) is coaxially rotatably mounted on the outer surface of the boss (24). A release frame (6) is connected between the connecting ring (23) and the stepped column (20).

8. The prefabricated fire-resistant and flame-retardant ceiling hanging installation structure according to claim 7, characterized in that: A slotted shell (7) is fixedly installed on the middle side of the hanger (4). The stepped column (20) is slidably installed inside the slotted shell (7). The small diameter section of the stepped column (20) extends through the end of the slotted shell (7). A return spring (21) is fixedly installed between the inner side of the slotted shell (7) and the end of the stepped column (20). A connecting seat (8) extends from the front end of the stepped column (20). The connecting seat (8) extends out from the slot of the slotted shell (7). One end of the release frame (6) is rotatably connected to the inside of the connecting seat (8). A slotted seat (22) extends from the side of the connecting ring (23). The other end of the release frame (6) is rotatably connected to the inside of the slotted seat (22).

Images