Metal plate concealed keel suspended ceiling structure

Abstract

The utility model relates to the technical field of ceiling decoration assemblies, and discloses a metal plate concealed keel ceiling structure which comprises full-thread hanging bars, main keels, auxiliary keels and a ceiling. According to the metal plate concealed keel suspended ceiling structure, the full-thread hanging bars, the main keels and the auxiliary keels are connected and combined with one another, so that the weight of various suspended ceiling materials can be effectively borne, and the stability and the safety of a suspended ceiling in the using process are ensured; the adjustable positioning of the main keel and the U-shaped clamping plate is jointly realized through a movable groove, a through hole, a first positioning spring, a Z-shaped shifting plate and a first positioning block structure in the first connecting clamping block, and the connection positioning of the auxiliary keel and the auxiliary keel is realized through a contraction groove, a second positioning spring and a second positioning block structure in the second connecting clamping block. The whole suspended ceiling structure can be flexibly adjusted in the installation process according to the size and shape of the actual building space and the specification of suspended ceiling materials, and the installation efficiency and adaptability are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of suspended ceiling decoration components, in particular to a metal plate concealed furring suspended ceiling structure. BACKGROUND

[0002] The furring suspended ceiling, that is, the support frame of the ceiling, generally comprises a main furring and a secondary furring. The main furring is also called a load-bearing furring, and the secondary furring is also called a covering furring. The secondary furring is often connected with the main furring through a hanging piece.

[0003] The prior art (publication number: CN218758222U) discloses a suspended ceiling decoration component convenient to install and disassemble, which belongs to the technical field of suspended ceiling decoration components. The first hanging rod is provided with a second hanging rod at the lower end of the first hanging rod. The hanging piece is arranged at the bottom end of the second hanging rod. The main furring is connected with the hanging piece. The secondary furring is connected with the main furring. The ceiling is arranged at the secondary furring. The suspended ceiling decoration component convenient to install and disassemble is provided with two groups of hanging rods with threaded grooves formed in the outer surfaces. The two groups of hanging rods are provided with a connecting frame in a threaded manner. The positions between the connecting frame and the two groups of hanging rods can be adjusted, so that the distance between the two groups of hanging rods can be adjusted, and thus the height of the suspended ceiling can be changed to adapt to the suspended ceiling requirements of buildings with different indoor heights.

[0004] Although the device in the above-mentioned comparative document solves the problem that the hanging rod assembly cannot meet the suspended ceiling decoration requirements of indoor buildings with different heights, when the main furring and the secondary furring are installed, the device is installed through bolts and is matched with an electric drill or a wrench, which is time-consuming and laborious to operate and is not convenient for people to flexibly adjust. In order to solve the above-mentioned problems, the metal plate concealed furring suspended ceiling structure is proposed. CONTENT OF THE UTILITY MODEL

[0005] In view of the defects of the prior art, the metal plate concealed furring suspended ceiling structure has the advantages of quick installation and solves the problems that it is time-consuming and laborious to install the main furring and the secondary furring through bolts and a wrench and is not convenient for people to flexibly adjust.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a metal plate concealed furring suspended ceiling structure, comprising a full-wire hanging rib, a main furring, a secondary furring and a ceiling. The full-wire hanging rib is surface-slidely connected with a sliding cylinder. The sliding cylinder is fixedly connected with a U-shaped clamping plate at the bottom. The U-shaped clamping plate is internally provided with first positioning holes on opposite sides. The main furring is fixedly connected with a plurality of first connecting clamping blocks and second connecting clamping blocks at the bottom. The secondary furring is internally provided with a sliding groove. The sliding groove is internally provided with a plurality of second positioning holes on opposite sides. The main furring is slidably connected in the U-shaped clamping plate. The secondary furring is slidably connected on the surface of the second connecting clamping block.

[0007] The first connecting block is internally provided with two movable grooves, the inner side of the movable groove is provided with a through hole, the inner side of the movable groove is fixedly connected with a first positioning spring, one end of the first positioning spring is fixedly connected with a Z-shaped shifting plate, the side of the Z-shaped shifting plate is fixedly connected with a first positioning block, one end of the first positioning block slides through the movable groove and is clamped in the first positioning hole, the second connecting block is internally provided with two contraction grooves, the inner side of the contraction groove is fixedly connected with a second positioning spring, one end of the second positioning spring is fixedly connected with a second positioning block, one end of the second positioning block slides through the sliding groove and is clamped in the second positioning hole.

[0008] Through the above scheme, the full silk hanging rib, the main keel and the auxiliary keel are connected and combined to form a multi-level frame system, which can effectively bear the weight of various suspended ceiling materials, ensure the stability and safety of the suspended ceiling during use, and the movable groove, the through hole, the first positioning spring, the Z-shaped shifting plate and the first positioning block in the first connecting block are combined to realize the adjustable positioning of the main keel and the U-shaped clamping plate, during installation, the Z-shaped shifting plate can be shifted to overcome the elastic force of the first positioning spring, so that the first positioning block retracts into the movable groove, when the main keel is adjusted to the appropriate position, the first positioning block is clamped into the first positioning hole under the action of the first positioning spring, realizing the fixation of the main keel in the U-shaped clamping plate, the contraction groove, the second positioning spring and the second positioning block in the second connecting block are used for the connection and positioning of the auxiliary keel and itself, during installation, the second positioning block can be clamped into the second positioning hole of the auxiliary keel sliding groove by using the elastic force of the second positioning spring, ensuring the stability of the connection between the auxiliary keel and the second connecting block.

[0009] Further, the auxiliary keel is fixedly connected with a connecting plate, the opposite sides of the connecting plate are fixedly connected with a first connecting plate and a second connecting plate, and the opposite sides of the ceiling are fixedly connected with a first connecting edge and a second connecting edge.

[0010] Through the above scheme, by setting the first connecting edge, the second connecting edge, the first connecting plate and the second connecting plate, the ceiling can be conveniently installed.

[0011] Further, the first connecting edge is clamped on the side of the second connecting plate, and the second connecting edge is clamped on the side of the first connecting plate.

[0012] The above-described solution involves engaging the first and second connecting edges with the first and second connecting plates, respectively. This securely fixes the ceiling to the frame constructed from the secondary keel, thus completing the enclosure of the entire ceiling structure at the bottom. This engagement method offers a degree of installation adaptability. During installation, the connection position between the ceiling and the secondary keel can be adjusted relatively flexibly according to the size and shape of the ceiling, as long as the first and second connecting edges can accurately engage with the corresponding connecting plates. This facilitates fine-tuning on-site.

[0013] Furthermore, the surface of the fully threaded suspension rod is threaded with a threaded cylinder, and a rotating cylinder is fixedly connected to the surface of the threaded cylinder.

[0014] With the above solution, the threaded connection of the threaded cylinder to the surface of the full-thread suspension rod allows for vertical movement by rotation. The rotating cylinder facilitates height adjustment by rotating the threaded cylinder.

[0015] Furthermore, multiple protrusions are fixedly connected to the surface of the rotating cylinder.

[0016] The above solution, by setting protruding strips, can increase the friction on the surface of the rotating cylinder, making it easier and more convenient for construction workers to operate the rotating cylinder. It also allows for more precise control of the rotation amplitude of the threaded cylinder, thereby accurately adjusting the height of the suspended ceiling.

[0017] Furthermore, an annular block is fixedly connected to the surface of the sliding cylinder, and an annular groove is opened on the inner side of the rotating cylinder, with the annular block slidably connected in the annular groove.

[0018] The above scheme, by setting an annular block and an annular groove, allows the annular block to slide stably within the annular groove when the rotating cylinder rotates. This allows the sliding cylinder to move up and down with the rotation of the threaded cylinder, while restricting the circumferential movement of the sliding cylinder, thus ensuring the stability of the entire connection structure.

[0019] Furthermore, a limiting block is fixedly connected to the bottom of the all-wire suspension rod, and a limiting groove is opened on the surface of the sliding cylinder, with the limiting block slidably connected in the limiting groove.

[0020] The above solution, by setting limit blocks and limit grooves, can limit the sliding range of the slide cylinder on the surface of the full-wire suspension rod, preventing the slide cylinder from sliding excessively and causing the entire ceiling structure to become loose or causing installation deviations.

[0021] Furthermore, expansion bolts are provided on the surface of the fully threaded suspension rod.

[0022] The above method involves using expansion bolts to insert the fully threaded suspension rod into a pre-prepared drilled hole, and then rotating the expansion bolts to fix the position of the fully threaded suspension rod.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This type of concealed metal keel ceiling structure uses interconnected wire rods, main keels, and secondary keels to form a multi-layered frame system. This system effectively supports the weight of various ceiling materials, ensuring the stability and safety of the ceiling during use. The adjustable positioning of the main keel and U-shaped clamp is achieved through the movable groove, through-hole, first positioning spring, Z-shaped actuating plate, and first positioning block structure within the first connecting block. During installation, the Z-shaped actuating plate can be moved to overcome the spring force of the first positioning spring, causing the first positioning block to retract into the movable groove. Once the main keel is adjusted to the appropriate position... The first positioning block, under the action of the first positioning spring, engages with the first positioning hole, thus fixing the main keel within the U-shaped clamp. The second connecting block, with its internal contraction groove, second positioning spring, and second positioning block structure, is used for the connection and positioning of the secondary keel. During installation, the elasticity of the second positioning spring allows the second positioning block to engage with the second positioning hole, ensuring the stability of the connection between the secondary keel and the second connecting block. Furthermore, the position of the secondary keel can be adjusted within a certain range, allowing the entire ceiling structure to be flexibly adjusted according to the actual dimensions and shape of the building space and the specifications of the ceiling materials during installation. Horizontal displacement, vertical height adjustment, and fine-tuning of the spacing between different keels can all be easily achieved, improving installation efficiency and adaptability. Attached Figure Description

[0025] Figure 1 This is a frontal three-dimensional structural diagram of this application;

[0026] Figure 2 This is a schematic diagram of the U-shaped card plate in this application;

[0027] Figure 3 This is a structural schematic diagram of the cross-section of the movable groove in this application;

[0028] Figure 4 This is a schematic diagram of the main keel structure in this application;

[0029] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0030] In the picture:

[0031] 1. Fully threaded suspension rod; 101. Limiting block; 102. Sliding cylinder; 103. Limiting groove; 104. Annular block; 105. Threaded cylinder; 106. Rotating cylinder; 107. Raised bar; 108. U-shaped clamping plate; 109. First positioning hole; 1010. Expansion bolt; 1011. Annular groove;

[0032] 2. Main keel; 201. First connecting block; 202. Second connecting block; 203. Movable groove; 204. Through hole; 205. First positioning spring; 206. Z-shaped actuating plate; 207. First positioning block; 208. Shrinkage groove; 209. Second positioning spring; 2010. Second positioning block;

[0033] 3. Secondary keel; 301. Slide groove; 302. Second positioning hole; 303. Connecting plate; 304. First connecting plate; 305. Second connecting plate;

[0034] 4. Ceiling; 401. First connecting edge; 402. Second connecting edge. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] Please see Figure 1 , Figure 3 and Figure 5 The metal plate concealed keel ceiling structure in this embodiment includes a full-wire suspension rod 1, a main keel 2, a secondary keel 3, and a ceiling 4. A sliding cylinder 102 is slidably connected to the surface of the full-wire suspension rod 1. A U-shaped clamping plate 108 is fixedly connected to the bottom of the sliding cylinder 102. The U-shaped clamping plate 108 has first positioning holes 109 on both sides inside. A plurality of first connecting blocks 201 and second connecting blocks 202 are fixedly connected to the bottom of the main keel 2. A sliding groove 301 is opened inside the secondary keel 3. A plurality of second positioning holes 302 are opened on both sides inside the sliding groove 301. The main keel 2 is slidably connected inside the U-shaped clamping plate 108, and the secondary keel 3 is slidably connected to the surface of the second connecting blocks 202.

[0037] The first connecting block 201 has two movable grooves 203 inside. A through hole 204 is provided on the inner side of each movable groove 203. A first positioning spring 205 is fixedly connected to the inner side of each movable groove 203. A Z-shaped actuating plate 206 is fixedly connected to one end of the first positioning spring 205. A first positioning block 207 is fixedly connected to the side of the Z-shaped actuating plate 206. One end of the first positioning block 207 slides through the movable groove 203 and engages with the first positioning hole 109. The second connecting block 202 has two contraction grooves 208 inside. A second positioning spring 209 is fixedly connected to the inner side of each contraction groove 208. A second positioning block 2010 is fixedly connected to one end of each second positioning spring 209. One end of the second positioning block 2010 slides through the sliding groove 301 and engages with the second positioning hole 302. Through the interconnection and combination of the threaded suspension rod 1, the main keel 2, and the secondary keel 3, a multi-layered frame system is formed, which can effectively bear the weight of various ceiling materials and ensure the stability of the ceiling during use. For both safety and stability, the adjustable positioning of the main keel 2 and the U-shaped clamping plate 108 is achieved through the structure of the movable groove 203, through hole 204, first positioning spring 205, Z-shaped actuating plate 206, and first positioning block 207 inside the first connecting block 201. During installation, the Z-shaped actuating plate 206 can be moved to overcome the elasticity of the first positioning spring 205, causing the first positioning block 207 to retract into the movable groove 203. When the main keel 2 is adjusted to the appropriate position, the first positioning block 207... Under the action of the first positioning spring 205, it is inserted into the first positioning hole 109, thereby fixing the main keel 2 in the U-shaped card plate 108. The structure of the shrinkage groove 208 inside the second connecting block 202, the second positioning spring 209, and the second positioning block 2010 is used for the connection and positioning of the secondary keel 3 with itself. During installation, the elastic force of the second positioning spring 209 can be used to make the second positioning block 2010 inserted into the second positioning hole 302, ensuring the stability of the connection between the secondary keel 3 and the second connecting block 202.

[0038] Please see Figure 1 , Figure 2 and Figure 5The bottom of the secondary keel 3 is fixedly connected to a connecting plate 303. A first connecting plate 304 and a second connecting plate 305 are fixedly connected to opposite sides of the connecting plate 303. The ceiling 4 is fixedly connected to opposite sides with a first connecting edge 401 and a second connecting edge 402. The installation of the first connecting edge 401, the second connecting edge 402, the first connecting plate 304, and the second connecting plate 305 facilitates the installation of the ceiling 4. The first connecting edge 401 is engaged with the side of the second connecting plate 305, and the second connecting edge 402 is engaged with the first connecting plate 304. On the side, the first connecting edge 401 and the second connecting edge 402 are respectively connected to the first connecting plate 304 and the second connecting plate 305, which can firmly fix the ceiling 4 to the frame constructed by the secondary keel 3, thereby completing the closure of the bottom of the entire suspended ceiling structure. This connection method provides a certain degree of installation adaptability. During the installation process, the connection position between the ceiling 4 and the secondary keel 3 can be adjusted relatively flexibly according to the size and shape of the ceiling 4, as long as the first connecting edge 401 and the second connecting edge 402 can be accurately inserted into the corresponding connecting plate.

[0039] Please see Figure 3The fully threaded suspension rod 1 has a threaded cylinder 105 threadedly connected to its surface. A rotating cylinder 106 is fixedly connected to the surface of the threaded cylinder 105. The threaded connection of the threaded cylinder 105 to the surface of the fully threaded suspension rod 1 allows for vertical movement via rotation. The rotating cylinder 106 facilitates height adjustment by rotating the threaded cylinder 105. Multiple protrusions 107 are fixedly connected to the surface of the rotating cylinder 106. These protrusions increase the friction on the surface of the rotating cylinder 106, making it easier and more convenient for construction workers to rotate it. This allows for more precise control of the rotation amplitude of the threaded cylinder 105, thereby accurately adjusting the ceiling height. An annular block 104 is fixedly connected to the surface of the sliding cylinder 102. An annular groove 1011 is formed on the inner side of the rotating cylinder 106. The annular block 104 is slidably connected within the annular groove 1011. By setting the annular block 104 and the annular groove 1011, the rotating cylinder 106 rotates... The annular block 104 can slide stably within the annular groove 1011, allowing the slide cylinder 102 to move up and down with the rotation of the threaded cylinder 105, while also restricting the circumferential movement of the slide cylinder 102, thus ensuring the stability of the entire connection structure. The bottom of the fully threaded suspension rod 1 is fixedly connected to a limiting block 101, and a limiting groove 103 is opened on the surface of the slide cylinder 102. The limiting block 101 is slidably connected within the limiting groove 103. By setting the limiting block 101 and the limiting groove 103, the sliding range of the slide cylinder 102 on the surface of the fully threaded suspension rod 1 can be limited, preventing the slide cylinder 102 from sliding excessively, which could cause the entire ceiling structure to become loose or cause installation deviations. The surface of the fully threaded suspension rod 1 is provided with expansion bolts 1010. By setting the expansion bolts 1010, people can insert the fully threaded suspension rod 1 into the pre-prepared drilled hole through the expansion bolts 1010, and then rotate the expansion bolts 1010 to fix the position of the fully threaded suspension rod 1.

[0040] In this embodiment, the interconnected combination of the full-wire suspension rod 1, main keel 2, and secondary keel 3 forms a multi-layered frame system, which can effectively bear the weight of various ceiling materials, ensuring the stability and safety of the ceiling during use. The adjustable positioning of the main keel 2 and the U-shaped clamping plate 108 is achieved through the internal movable groove 203, through hole 204, first positioning spring 205, Z-shaped actuating plate 206, and first positioning block 207 of the first connecting block 201. During installation, the Z-shaped actuating plate 206 can be moved to overcome the elasticity of the first positioning spring 205, causing the first positioning block 207 to retract into the movable groove 203. When the main keel 2 is adjusted to the appropriate position, the first positioning block 207, under the action of the first positioning spring 205, engages with the first positioning hole 10. 9. The main keel 2 is fixed in the U-shaped card plate 108. The structure of the shrinkage groove 208, the second positioning spring 209 and the second positioning block 2010 inside the second connecting block 202 is used for the connection and positioning of the secondary keel 3 and itself. During installation, the elasticity of the second positioning spring 209 can be used to make the second positioning block 2010 snap into the second positioning hole 302, ensuring the stability of the connection between the secondary keel 3 and the second connecting block 202. The position of the secondary keel 3 can be adjusted within a certain range, so that the entire ceiling structure can be flexibly adjusted according to the actual building space size, shape and ceiling material specifications during installation. Whether it is horizontal displacement, vertical height adjustment or fine adjustment of the spacing between different keels, it can be easily achieved, improving installation efficiency and adaptability.

[0041] The working principle of the above embodiment is as follows: In use, the fully threaded suspension rod 1 is inserted into the pre-prepared drill hole using expansion bolts 1010. Then, the expansion bolts 1010 are rotated to fix the position of the fully threaded suspension rod 1. After fixing, the main keel 2 is installed first, so that the main keel 2 is slidably connected in multiple U-shaped clamping plates 108. Through the clamping action of the first positioning block 207, the first positioning hole 109, and the first positioning spring 205, the main keel 2 can be stably installed at the bottom of the fully threaded suspension rod 1. After installation, the secondary keel 3 is installed. Through the sliding groove 301 in the secondary keel 3, the secondary keel 3 is slidably connected in multiple second connecting clamping blocks 202. Through the clamping action of the second positioning block 2010, the second positioning hole 302, and the second positioning spring 209, the secondary keel 3 is slidably connected in multiple second connecting clamping blocks 202. The connection allows the secondary keel 3 to be securely installed at the bottom of the main keel 2. After installation, the first connecting edge 401 is snapped into the second connecting plate 305, and then the second connecting edge 402 is snapped into the first connecting plate 304. By repeating the above steps, the ceiling 4 can be installed. By setting the first connecting plate 304, the second connecting plate 305, the first connecting edge 401 and the second connecting edge 402, the seam between two adjacent standard mineral wool boards can be covered, resulting in a better flatness of the ceiling panel and a more aesthetically pleasing concealed keel. It also prevents dust and debris from entering the ceiling, thus avoiding damage to the ceiling. It is highly practical, easy to construct, and each standard mineral wool board can be used as a ceiling inspection port during disassembly, making inspection flexible and convenient, and easy to promote and use.

[0042] By setting up the rotating cylinder 106, people can turn the rotating cylinder 106, and then through the limiting block 101 and the limiting groove 103, the threaded cylinder 105 can move on the surface of the threaded suspension rod 1. This helps to make fine adjustments to the overall height of the ceiling during the installation process to adapt to different indoor net height requirements or to ensure the flatness of the ceiling surface.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal plate concealed joist suspended ceiling structure comprising full wire suspending bars (1), main joists (2), sub joists (3) and a ceiling (4), characterized in that: The full silk suspender (1) surface slidingly connects with a sliding cylinder (102), the sliding cylinder (102) bottom fixedly connects with a U-shaped clamping plate (108), the U-shaped clamping plate (108) inside opposite sides are both provided with first positioning holes (109), the main keel (2) bottom fixedly connects with a plurality of first connecting clamping blocks (201) and second connecting clamping blocks (202), the auxiliary keel (3) inside is provided with a sliding slot (301), the sliding slot (301) inside opposite sides are both provided with a plurality of second positioning holes (302), the main keel (2) slidingly connects in the U-shaped clamping plate (108), the auxiliary keel (3) slidingly connects on the second connecting clamping block (202) surface. The first connecting clamping block (201) inside is provided with two movable grooves (203), the movable groove (203) inside side is provided with a through hole (204), the movable groove (203) inside side fixedly connects with a first positioning spring (205), the first positioning spring (205) one end fixedly connects with a Z-shaped shifting plate (206), the Z-shaped shifting plate (206) side fixedly connects with a first positioning block (207), the first positioning block (207) one end slidingly passes through the movable groove (203) and is clamped in the first positioning hole (109), the second connecting clamping block (202) inside is provided with two shrinkage grooves (208), the shrinkage groove (208) inside side fixedly connects with a second positioning spring (209), the second positioning spring (209) one end fixedly connects with a second positioning block (2010), the second positioning block (2010) one end slidingly passes through the sliding slot (301) and is clamped in the second positioning hole (302).

2. The metal plate concealed joist suspended ceiling structure according to claim 1, characterized in that: The auxiliary keel (3) bottom fixedly connects with a connecting plate (303), the connecting plate (303) opposite sides are respectively fixedly connected with a first connecting clamping plate (304) and a second connecting clamping plate (305), the ceiling (4) opposite sides are respectively fixedly connected with a first connecting edge (401) and a second connecting edge (402).

3. The metal plate concealed joist suspended ceiling structure according to claim 2, characterized in that: The first connecting edge (401) is clamped on the second connecting clamping plate (305) side, and the second connecting edge (402) is clamped on the first connecting clamping plate (304) side.

4. The metal plate concealed joist suspended ceiling structure according to claim 1, characterized in that: The full silk suspender (1) surface is threadedly connected with a threaded cylinder (105), and the threaded cylinder (105) surface is fixedly connected with a rotating cylinder (106).

5. The metal plate concealed joist suspended ceiling structure according to claim 4, characterized in that: The rotating cylinder (106) surface is fixedly connected with a plurality of convex strips (107).

6. The metal plate concealed joist suspended ceiling structure according to claim 4, characterized in that: The sliding cylinder (102) surface is fixedly connected with an annular block (104), and the rotating cylinder (106) inside side is provided with an annular groove (1011), and the annular block (104) slidingly connects in the annular groove (1011).

7. The metal plate concealed joist suspended ceiling structure according to claim 1, characterized in that: The full silk suspender (1) bottom is fixedly connected with a limiting block (101), and the sliding cylinder (102) surface is provided with a limiting groove (103), and the limiting block (101) slidingly connects in the limiting groove (103).

8. The metal plate concealed joist suspended ceiling structure according to claim 1, characterized in that: The full silk suspender (1) surface is provided with an expansion bolt (1010).

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