A quick connecting structure of indoor decoration ceiling framework

Abstract

The present application relates to the technical field of skeleton connection, and discloses a quick connection structure of indoor decoration ceiling skeleton, comprising a connecting cover. In the early stage of installation, the upper and lower parts of the shutter are used to realize preliminary positioning and limiting of the ceiling skeleton, so that the cumbersome process of manual positioning is omitted, one person can quickly complete the pre-fixing operation, and the early installation efficiency is greatly improved. In the installation stage, the pressing plate is turned over with the rocker arm and clamped into the gap of the ceiling skeleton to form reliable horizontal limiting and effectively prevent the ceiling skeleton from being pulled out radially along the connecting cover. The axial tension generated by the positioning block driven by the pull rod has a significant effect, which can not only eliminate the installation gap between the ceiling skeleton and the connecting cover and avoid the shaking problem caused by the gap in the later use, but also adapt to thermal expansion and cold contraction caused by temperature changes, enhance the overall rigidity of the ceiling skeleton to resist deformation, balance the stress of multiple intersecting ceiling skeletons, and comprehensively ensure the long-term stability of the ceiling.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of skeleton connection, and particularly relates to a quick connection structure of a ceiling skeleton for indoor decoration. BACKGROUND

[0002] In an indoor decoration project, a ceiling skeleton, as a core support structure of a ceiling system, directly affects the construction quality and period of the ceiling in terms of connection stability and installation efficiency. At present, the mainstream connection mode of the ceiling skeleton on the market is mainly traditional bolt fixing and buckle splicing. However, this mode has many technical pain points in actual application and is difficult to meet the needs of modern decoration.

[0003] The traditional connection mode of the ceiling skeleton has obvious defects. In terms of installation efficiency, the process is complicated and highly dependent on manual operation, and multiple people are needed to complete the alignment and fixing operation of the ceiling skeleton. The bolt alignment and tightening need to be adjusted repeatedly. In large-area construction, the time consumption of pre-fixing is high, which seriously slows down the progress, and manual operation is prone to misalignment of the butt joint, which needs to be adjusted twice, thereby increasing the cost. In addition, the mainstream bolt connection mode is prone to stress concentration. In long-term use, the ceiling skeleton will be loose due to the thermal expansion and cold contraction caused by temperature changes, thereby causing the ceiling skeleton to shake, make noise and be damaged. When multiple ceiling skeletons intersect, uneven stress will also cause the ceiling skeleton to sag prematurely, thereby increasing the maintenance cost.

[0004] Therefore, the application is proposed. SUMMARY

[0005] To solve the above technical problems, the basic idea of the technical scheme of the application is as follows.

[0006] A quick connection structure of a ceiling skeleton for indoor decoration, comprising a connecting cover.

[0007] The connecting cover is provided with a ceiling joist around the connecting cover, and a notch is formed in the ceiling joist.

[0008] A plurality of positioning blocks are slidably arranged in the connecting cover, and a positioning spring is arranged between the positioning blocks and the connecting cover. A pull rod is horizontally slidably arranged in the connecting cover. An installation groove is formed in the connecting cover, and a rocker arm is installed in the installation groove. A pressing plate is installed on the rocker arm, and the end of the rocker arm is slidably connected with one end of the pull rod.

[0009] A baffle is vertically inserted into the positioning block. A shutter is rotatably installed on the connecting cover. The upper half of the shutter is attached to the end of the ceiling joist to position the ceiling joist. The lower half of the shutter is attached to the baffle to block the turning of the shutter.

[0010] The connecting cover is provided with a driving assembly for driving the pull rod to slide inward, the pull rod moves to flip and move the driving rocker and the pressing plate into the notch, the pull rod extrudes the blocking plate to move downward and unlock the shutter, when the rocker and the mounting groove are attached, the pull rod pulls the pressing plate and the positioning block to slide synchronously, extruding the ceiling joist frame to generate axial tension and improve stability.

[0011] As a preferred embodiment of the present application, the connecting cover is cross-shaped, and a connecting cavity is formed in the connecting cover, a pair of guide blocks are mounted at the inlet of the connecting cover, the guide blocks are arc-shaped, a gap is formed between the guide blocks, and the width of the gap is matched with the width of the connecting cover.

[0012] As a preferred embodiment of the present application, the connecting cover is cross-shaped, and a connecting cavity is formed in the connecting cover, a pair of guide blocks are mounted at the inlet of the connecting cover, the guide blocks are arc-shaped, a gap is formed between the guide blocks, and the width of the gap is matched with the width of the connecting cover.

[0013] As a preferred embodiment of the present application, the driving assembly comprises a lead screw shaft, the lead screw shaft is rotationally connected with the connecting cover, a knob is mounted at the end of the lead screw shaft, a sleeve ring is screw-connected on the lead screw shaft, a pressing arm is rotationally mounted at the bottom of the sleeve ring, the end of the pressing arm is rotationally connected with the end of the pull rod, the pressing arm is inclined, a guide rod is installed through the sleeve ring, and the two ends of the guide rod are connected with the connecting cover.

[0014] As a preferred embodiment of the present application, the positioning block is provided with a sliding block, a positioning rod is installed through the sliding block, positioning seats are mounted at the two ends of the positioning rod, a positioning spring is sleeved on the positioning rod, one end of the positioning spring is clamped on the positioning seat, and the other end of the positioning spring is clamped on the sliding block, the positioning spring is used to push the positioning block to attach to the side wall of the positioning seat on the other side.

[0015] As a preferred embodiment of the present application, the pressing plate is L-shaped, the rocker is inclined, a synchronous shaft is mounted at the rotation center of the rocker, the two ends of the synchronous shaft are rotationally connected with the side wall of the mounting groove, a torsion spring is sleeved on the synchronous shaft, one end of the torsion spring is clamped on the rocker, and the other end of the torsion spring is clamped on the side wall of the mounting groove.

[0016] As a preferred embodiment of the present application, the pull rod is movably provided with a limiting seat, the limiting seat is installed on the connecting cover, the pull rod is installed with a connecting rod at the end, the connecting rod is installed with a sliding rod at the end, the rocking arm is installed with a pair of arched supports, the connecting rod is arranged in the gap between the pair of arched supports, and the sliding rod is arranged to slide in the gap between the arched supports and the rocking arm.

[0017] As a preferred embodiment of the present application, the rotating center of the cover is installed with a positioning shaft, the two ends of the positioning shaft are rotationally connected with the connecting cover, the connecting point of the ceiling joist frame and the cover and the connecting point of the baffle and the cover are located on the two sides of the positioning shaft.

[0018] As a preferred embodiment of the present application, the baffle is in L shape, the end of the baffle is arranged to slide in the sliding cavity formed in the side wall of the positioning block, the cover is installed with a synchronous plate at the bottom, the synchronous plate is installed with a limiting rod, the two ends of the limiting rod are installed on the sliding cavity, the limiting rod is sleeved with a limiting spring, one end of the limiting spring is clamped on the sliding cavity, the other end of the limiting spring is clamped on the synchronous plate, the synchronous plate is installed with a pressing rod, and the pressing rod movably penetrates the positioning block.

[0019] As a preferred embodiment of the present application, the positioning block is formed with an inner groove, the pressing rod is arranged on the inner groove, a pressing block is arranged to slide on the inner groove, the pressing block is connected with the pull rod, the side wall of the pressing block is formed with an inclined surface, the pull rod is used to drive the synchronous movement of the pressing block, the inclined surface on the pressing block extrudes the pressing rod to move downward, and the baffle and the cover are driven to separate and unlock.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] In the early stage of installation, the upper and lower parts of the cover are used to realize the preliminary positioning and limiting of the joist frame respectively, the cumbersome process of manual positioning is omitted, the pre-fixing operation can be quickly completed by one person, and the early installation efficiency is greatly improved; in the installation stage, the pressing plate is clamped into the gap of the joist frame by turning the rocking arm, reliable horizontal limiting is formed, and the joist frame is effectively prevented from being pulled out along the radial direction of the connecting cover; the axial tension generated by the pressing of the positioning block by the pull rod has a significant effect, which can not only eliminate the installation gap between the joist frame and the connecting cover, but also avoid the shaking problem caused by the gap in the later use, can adapt to the thermal expansion and cold contraction caused by temperature changes, can enhance the overall rigidity of the suspended ceiling frame to resist deformation, can balance the stress of multiple intersecting joist frames, and can comprehensively ensure the long-term stability of the suspended ceiling; compared with the traditional bolt hard locking which is easy to cause stress concentration, the flexible fastening mode of the axial tension can make the stress of the joist frame evenly distributed along the axial direction, optimize the connection effect, and improve the reliability and durability of the connection of the suspended ceiling frame.

[0022] The specific embodiments of the present application will be further described in detail below with reference to the drawings. Attached Figure Description

[0023] In the attached diagram:

[0024] Figure 1 A 3D diagram of a quick-connect structure for an interior ceiling frame;

[0025] Figure 2 A bottom view of a quick-connect structure for interior ceiling frames;

[0026] Figure 3 A cross-sectional view of a quick-connect structure for an interior ceiling frame;

[0027] Figure 4 A quick-connection structure for interior ceiling frames Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 A partial view of a quick-connect structure for interior ceiling frames. Figure 1 ;

[0029] Figure 6 A partial view of a quick-connect structure for interior ceiling frames. Figure 2 ;

[0030] Figure 7 A quick-connection structure for interior ceiling frames Figure 6 Enlarged view at point B in the middle;

[0031] Figure 8 A cross-sectional view of a positioning block for a quick-connect structure of an interior ceiling frame. Figure 1 ;

[0032] Figure 9 A cross-sectional view of a positioning block for a quick-connect structure of an interior ceiling frame. Figure 2 .

[0033] In the diagram: 1. Connecting cover; 11. Connecting cavity; 111. Guide block; 112. Ceiling keel frame; 113. Notch; 12. Positioning cover; 121. Mounting plate; 122. Top rod; 123. Locking bolt; 124. Connecting flange; 13. Screw shaft; 131. Knob; 132. Collar; 133. Guide rod; 134. Pressure arm;

[0034] 2. Positioning block; 21. Slider; 211. Positioning rod; 212. Positioning seat; 213. Positioning spring; 22. Pressure plate; 221. Rocker arm; 222. Synchronous shaft; 223. Torsion spring; 224. Mounting slot; 23. Pull rod; 231. Connecting rod; 232. Slide rod; 233. Arched bracket; 234. Limiting seat;

[0035] 3. Cover plate; 31. Positioning shaft; 32. Baffle; 321. Synchronizing plate; 322. Slide cavity; 323. Pressure rod; 324. Limiting rod; 325. Limiting spring; 33. Pressure block; 331. Inclined surface; 332. Inner groove. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention. Example 1:

[0037] like Figures 1 to 9 As shown, a quick connection structure for an interior decoration ceiling frame includes a connecting cover 1, with a ceiling keel frame 112 inserted around the connecting cover 1, and a notch 113 opened on the ceiling keel frame 112.

[0038] Several pairs of positioning blocks 2 are slidably arranged inside the connecting cover 1, and a positioning spring 213 is provided between the positioning block 2 and the connecting cover 1. A pull rod 23 is slidably arranged on the connecting cover 1. An installation groove 224 is opened on the connecting cover 1, and a rocker arm 221 is installed on the installation groove 224. A pressure plate 22 is installed on the rocker arm 221, and the end of the rocker arm 221 is slidably connected to one end of the pull rod 23.

[0039] A baffle 32 is vertically inserted into the positioning block 2, and a cover 3 is rotatably installed on the connecting cover 1. The upper half of the cover 3 is attached to the end of the ceiling keel frame 112 to position the ceiling keel frame 112. The lower half of the cover 3 is attached to the baffle 32 to prevent the cover 3 from flipping.

[0040] A drive assembly for driving the pull rod 23 to slide inward is installed on the connecting cover 1. After the pull rod 23 moves, it flips the drive rocker arm 221 and the pressure plate 22 and moves them into the notch 113. The pull rod 23 presses the baffle 32 down and unlocks the cover plate 3. When the rocker arm 221 and the mounting groove 224 are in contact, the pull rod 23 pulls the pressure plate 22 and the positioning block 2 to slide synchronously, squeezing the ceiling keel frame 112 to generate axial tension and improve stability.

[0041] like Figures 1 to 9 As shown, in a specific embodiment, the connecting cover 1 is cross-shaped, and a connecting cavity 11 is provided inside the connecting cover 1. A pair of guide blocks 111 are installed at the inlet of the connecting cover 1. The pair of guide blocks 111 are arc-shaped, and a gap is left between the pair of guide blocks 111, the width of which is adapted to the width of the connecting cover 1. The cross-shaped connecting cover 1 can simultaneously connect multiple ceiling keel frames 112. The connecting cavity 11 provides space for component installation, and the arc-shaped guide blocks 111 can guide the ceiling keel frame 112 to be accurately inserted into the connecting cover 1, reducing installation alignment time and improving assembly efficiency.

[0042] like Figures 1 to 9 As shown, further, a positioning cover 12 is installed on the top of the connecting cover 1, and an mounting plate 121 is installed on the bottom of the positioning cover 12. The mounting plate 121 and the connecting cover 1 are connected by bolts. A top rod 122 is inserted into the top of the positioning cover 12, and a locking bolt 123 for positioning the top rod 122 is installed on the side wall of the positioning cover 12. A connecting flange 124 is installed on the top of the top rod 122, and the connecting flange 124 has a mounting hole. The mounting plate 121 achieves a stable connection between the positioning cover 12 and the connecting cover 1. The length of the top rod 122 can be adjusted within the positioning cover 12. With the help of the locking bolt 123, it can adapt to different ceiling height requirements. The connecting flange 124 facilitates fixing to the building's roof structure, improving the installation adaptability of the connection structure.

[0043] like Figures 1 to 9 As shown, the drive assembly further includes a lead screw shaft 13, which is rotatably connected to the connecting cover 1. A knob 131 is installed at the end of the lead screw shaft 13, and a collar 132 is screwed onto the lead screw shaft 13. A pressure arm 134 is rotatably installed at the bottom of the collar 132, and the end of the pressure arm 134 is rotatably connected to the end of the pull rod 23. The pressure arm 134 is in an inclined state, and a guide rod 133 is installed through the collar 132. Both ends of the guide rod 133 are connected to the connecting cover 1. Rotating the knob 131 drives the lead screw shaft 13 to rotate, and the guide rod 133 restricts the rotation of the collar 132 and guides its axial movement. The collar 132 drives the pressure arm 134 to push the pull rod 23 to slide. This achieves convenient driving of the pull rod 23 without the need for complex tools, reducing the difficulty of operation. Example 2:

[0044] The difference between the above embodiments and this embodiment is that: Figures 1 to 9 As shown, a slider 21 is installed on the side wall of the positioning block 2. A positioning rod 211 is installed through the slider 21. Positioning seats 212 are installed at both ends of the positioning rod 211. A positioning spring 213 is sleeved on the positioning rod 211. One end of the positioning spring 213 is engaged with the positioning seat 212, and the other end is engaged with the slider 21. The positioning spring 213 is used to push the positioning block 2 to fit against the side wall of the positioning seat 212 on the other side. The slider 21 slides along the positioning rod 211 to ensure that the positioning block 2 moves smoothly. The positioning seat 212 provides fixed support for the positioning rod 211. The positioning spring 213 can push the positioning block 2 to reset and maintain the fit, ensuring that the squeezing force of the positioning block 2 on the ceiling keel frame 112 is stable and improving the reliability of the connection.

[0045] like Figures 1 to 9As shown, in a specific embodiment, the pressure plate 22 is L-shaped, the rocker arm 221 is in an inclined state, and a synchronous shaft 222 is installed at the rotation center of the rocker arm 221. The two ends of the synchronous shaft 222 are rotatably connected to the side wall of the mounting groove 224. A torsion spring 223 is sleeved on the synchronous shaft 222. One end of the torsion spring 223 is engaged with the rocker arm 221, and the other end of the torsion spring 223 is engaged with the side wall of the mounting groove 224. The L-shaped pressure plate 22 can be more securely engaged in the notch 113 of the ceiling keel frame 112. The synchronous shaft 222 ensures that the rocker arm 221 rotates smoothly. The torsion spring 223 can store force after the rocker arm 221 rotates, which is convenient for subsequent reset. At the same time, it enhances the tightness of the engagement between the pressure plate 22 and the notch 113 and prevents the ceiling keel frame 112 from coming off.

[0046] like Figures 1 to 9 As shown, a limiting seat 234 is movably disposed on the pull rod 23, and the limiting seat 234 is mounted on the connecting cover 1. A connecting rod 231 is installed at the end of the pull rod 23, and a sliding rod 232 is installed at the end of the connecting rod 231. A pair of arched brackets 233 are installed on the rocker arm 221, and the connecting rod 231 is placed in the gap between the pair of arched brackets 233, and slides in the gap formed between the sliding rod 232, the arched brackets 233, and the rocker arm 221. The limiting seat 234 restricts the sliding direction of the pull rod 23, ensuring its smooth movement; the cooperation of the connecting rod 231, the sliding rod 232, and the arched brackets 233 realizes the flexible transmission between the pull rod 23 and the rocker arm 221, ensuring that the pull rod 23 can accurately drive the rocker arm 221 to rotate when it moves, thus improving the reliability of the component linkage. Example 3:

[0047] The difference between the above embodiments and this embodiment is that: Figures 1 to 9 As shown, a positioning shaft 31 is installed at the rotation center of the cover 3. The two ends of the positioning shaft 31 are rotatably connected to the connecting cover 1. The connection points between the ceiling keel frame 112 and the cover 3, and the connection points between the baffle 32 and the cover 3, are located on both sides of the positioning shaft 31. The positioning shaft 31 provides stable rotational support for the cover 3, allowing the cover 3 to be flexibly flipped. The design of positioning the two points on both sides of the positioning shaft 31 can form a balance through the compression of the ceiling keel frame 112 and the limiting of the baffle 32, enhancing the initial positioning effect of the cover 3 on the ceiling keel frame 112 and preventing its displacement.

[0048] like Figures 1 to 9As shown, in a specific embodiment, the baffle 32 is L-shaped, and its end is slidably disposed in a sliding cavity 322 opened in the side wall of the positioning block 2. A synchronization plate 321 is installed at the bottom of the baffle 3, and a limit rod 324 is installed through the synchronization plate 321. Both ends of the limit rod 324 are installed on the sliding cavity 322, and a limit spring 325 is sleeved on the limit rod 324. One end of the limit spring 325 is engaged with the sliding cavity 322, and the other end of the limit spring 325 is engaged with the synchronization plate 321. A pressure rod 323 is installed on the step plate 321. The pressure rod 323 moves through the positioning block 2. The positioning block 2 has an inner groove 332. The pressure rod 323 is placed on the inner groove 332, and a pressure block 33 is slidably arranged on the inner groove 332. The pressure block 33 is connected to the pull rod 23. The side wall of the pressure block 33 has an inclined surface 331. The pull rod 23 is used to drive the pressure block 33 to move synchronously. The inclined surface 331 on the pressure block 33 squeezes the pressure rod 323 to move downward, driving the baffle 32 and the cover plate 3 to separate and unlock. The L-shaped baffle 32 can slide smoothly in the sliding cavity 322. The limiting rod 324 ensures the moving direction of the synchronous plate 321, and the limiting spring 325 facilitates the reset of the synchronous plate 321. The inclined surface 331 of the pressure block 33 can quickly unlock the baffle 32 and the cover plate 3 by squeezing the pressure rod 323. The inner groove 332 provides space for the cooperation between the pressure block 33 and the pressure rod 323, improving the convenience and accuracy of the unlocking operation.

[0049] The implementation principle of the quick-connect structure for interior ceiling frame of the present invention is as follows:

[0050] When connecting the ceiling frame, firstly, the ceiling frame is fixed to the building's top structure via the connecting flange 124 on the top positioning cover 12 of the connecting cover 1. Then, the insertion length of the top rod 122 within the positioning cover 12 is adjusted according to the ceiling height requirements. The position of the top rod 122 is locked by the locking bolt 123, completing the top fixation of the entire connection structure. Subsequently, the ceiling frame 112 is inserted along the guide blocks 111 at the inlet around the connecting cover 1. The arc-shaped guide blocks 111 guide the ceiling frame 112, ensuring its precise entry into the connecting cover 1. At this time, the upper part of the rotatably installed cover 3 on the connecting cover 1 is in contact with the end of the ceiling frame 112, providing initial positioning for the ceiling frame 112. Simultaneously, the lower part of the cover 3 is in contact with the baffle 32 on the positioning block 2. The baffle 32 limits the cover 3, preventing the cover 3 from flipping and causing the ceiling frame 112 to shift.

[0051] After the ceiling keel frame 112 is initially in place, the pull rod 23 is driven to slide into the connecting cover 1 by the drive component: rotate the knob 131 at the end of the lead screw shaft 13 to drive the lead screw shaft 13 to rotate. Since the collar 132 is screwed to the lead screw shaft 13 and cannot rotate due to the limit of the guide rod 133, the collar 132 will move along the axial direction of the lead screw shaft 13, thereby pushing the pressure arm 134 rotatably connected to it to move. The pressure arm 134 drives the pull rod 23 to slide horizontally along the limit seat 234. During the movement of the pull rod 23, its end connecting rod 231 drives the slide rod 232 to slide in the gap formed between the arched bracket 233 of the rocker arm 221 and the rocker arm 221, driving the rocker arm 221 to rotate around the synchronous shaft 222. The torsion spring 223 on the synchronous shaft 222 deforms and stores force accordingly. The rocker arm 221 drives the pressure plate 22 to gradually rotate and finally lock into the notch 113 of the ceiling keel frame 112, realizing the initial locking of the pressure plate 22 and the ceiling keel frame 112.

[0052] At the same time, when the pull rod 23 moves, it will drive the pressure block 33 connected to it to slide along the inner groove 332 of the positioning block 2. The inclined surface 331 on the pressure block 33 squeezes the pressure rod 323, causing the pressure rod 323 to move downward. The pressure rod 323 drives the synchronous plate 321 to slide along the limiting rod 324. The limiting spring 325 is compressed. The synchronous plate 321 is connected to the baffle 32, which in turn drives the baffle 32 to move downward along the sliding cavity 322 of the positioning block 2. The baffle 32 separates from the cover plate 3, releasing the limiting lock on the cover plate 3.

[0053] As the pull rod 23 continues to slide, when the rocker arm 221 is in contact with the mounting groove 224, the pull rod 23 begins to pull the pressure plate 22 and the positioning block 2 to slide synchronously. The slider 21 on the side wall of the positioning block 2 moves along the positioning rod 211, the positioning spring 213 is compressed, and the positioning block 2 and the pressure plate 22 together exert pressure on the ceiling keel frame 112, causing the ceiling keel frame 112 to generate axial tension.

[0054] The application of this axial tension firstly eliminates the installation gap between the ceiling keel frame 112 and the connecting cover 1, ensuring that the contact points of the two remain tightly fitted. This prevents the ceiling keel frame 112 from slightly wobbling during later use due to gaps, reducing the risk of loosening at the connection point from the root. Secondly, the axial tension keeps the ceiling keel frame 112 under a certain tension, enhancing its overall structural resistance to deformation. Even when affected by thermal expansion and contraction caused by changes in indoor temperature, or by slight vibrations or accidental contact, the stabilizing effect of the tension maintains its shape, preventing the keel frame from becoming unstable. Issues such as misalignment and sagging may occur. Furthermore, in scenarios where multiple ceiling keel frames 112 are connected by connecting covers 1, axial tension can ensure that the stress on each keel frame is balanced, preventing premature damage to a single keel frame due to stress concentration and extending the service life of the entire ceiling frame. Finally, compared to the traditional connection method that relies on bolts for rigid locking, axial tension achieves fastening through flexible pressure synergy, which can ensure connection strength and prevent stress concentration cracking of the keel frame or connecting parts due to excessive bolt tightening, thereby improving the safety and reliability of the connection structure and ensuring the long-term stable operation of the ceiling.

Claims

1. A quick-connect structure for an interior ceiling frame, comprising a connecting cover (1), characterized in that: The connecting cover (1) is fitted with a ceiling keel frame (112) around its perimeter, and the ceiling keel frame (112) has a notch (113). The connecting cover (1) has several pairs of positioning blocks (2) slidably arranged inside, and a positioning spring (213) is provided between the positioning block (2) and the connecting cover (1). The connecting cover (1) has a horizontally slidably arranged pull rod (23). The connecting cover (1) has an installation groove (224) and a rocker arm (221) is installed on the installation groove (224). A pressure plate (22) is installed on the rocker arm (221), and the end of the rocker arm (221) is slidably connected to one end of the pull rod (23). A baffle (32) is vertically inserted into the positioning block (2), and a cover (3) is rotatably installed on the connecting cover (1). The upper half of the cover (3) is attached to the end of the ceiling keel frame (112) to position the ceiling keel frame (112). The lower half of the cover (3) is attached to the baffle (32) to prevent the cover (3) from flipping. The connecting cover (1) is equipped with a drive assembly for driving the pull rod (23) to slide inward. After the pull rod (23) moves, it flips the drive rocker arm (221) and the pressure plate (22) and moves them into the notch (113). The pull rod (23) presses the baffle (32) down and unlocks the cover plate (3). When the rocker arm (221) and the mounting groove (224) are in contact, the pull rod (23) pulls the pressure plate (22) and the positioning block (2) to slide synchronously, squeezing the ceiling keel frame (112) to generate axial tension and improve stability. The drive assembly includes a lead screw shaft (13), which is rotatably connected to the connecting cover (1). A knob (131) is installed at the end of the lead screw shaft (13). A collar (132) is screwed onto the lead screw shaft (13). A pressure arm (134) is rotatably installed at the bottom of the collar (132). The end of the pressure arm (134) is rotatably connected to the end of the pull rod (23). The pressure arm (134) is in an inclined state. A guide rod (133) is installed through the collar (132). Both ends of the guide rod (133) are connected to the connecting cover (1). The pressure plate (22) is L-shaped, the rocker arm (221) is in an inclined state, and a synchronous shaft (222) is installed at the rotation center of the rocker arm (221). The two ends of the synchronous shaft (222) are rotatably connected to the side wall of the mounting groove (224). A torsion spring (223) is sleeved on the synchronous shaft (222). One end of the torsion spring (223) is engaged on the rocker arm (221), and the other end of the torsion spring (223) is engaged on the side wall of the mounting groove (224). The baffle (32) is L-shaped, and the end of the baffle (32) is slidably disposed in the sliding cavity (322) opened on the side wall of the positioning block (2). A synchronous plate (321) is installed at the bottom of the baffle (3). A limit rod (324) is installed through the synchronous plate (321). Both ends of the limit rod (324) are installed on the sliding cavity (322). A limit spring (325) is sleeved on the limit rod (324). One end of the limit spring (325) is engaged with the sliding cavity (322), and the other end of the limit spring (325) is engaged with the synchronous plate (321). A pressure rod (323) is installed on the synchronous plate (321). The pressure rod (323) moves through the positioning block (2). The positioning block (2) has an inner groove (332), the pressure rod (323) is placed on the inner groove (332), and a pressure block (33) is slidably arranged on the inner groove (332). The pressure block (33) is connected to the pull rod (23). The side wall of the pressure block (33) has an inclined surface (331). The pull rod (23) is used to drive the pressure block (33) to move synchronously. The inclined surface (331) on the pressure block (33) squeezes the pressure rod (323) to move down, driving the baffle (32) and the cover plate (3) to separate and unlock.

2. The quick-connect structure for an interior ceiling frame according to claim 1, characterized in that, The connecting cover (1) is cross-shaped, and a connecting cavity (11) is provided inside the connecting cover (1). A pair of guide blocks (111) are installed at the inlet of the connecting cover (1). The pair of guide blocks (111) are arc-shaped, and there is a gap between the pair of guide blocks (111). The width of the gap is adapted to the width of the connecting cover (1).

3. The quick-connect structure for an interior ceiling frame according to claim 1, characterized in that, The top of the connecting cover (1) is equipped with a positioning cover (12), the bottom of the positioning cover (12) is equipped with an mounting plate (121), and the mounting plate (121) and the connecting cover (1) are connected by bolts. The top of the positioning cover (12) is inserted with a top rod (122), and the side wall of the positioning cover (12) is equipped with a locking bolt (123) for positioning the position of the top rod (122). The top of the top rod (122) is equipped with a connecting flange (124), and the connecting flange (124) has a mounting hole.

4. The quick-connect structure for an interior ceiling frame according to claim 1, characterized in that, The positioning block (2) has a slider (21) installed on its side wall. A positioning rod (211) is installed through the slider (21). Positioning seats (212) are installed at both ends of the positioning rod (211). A positioning spring (213) is sleeved on the positioning rod (211). One end of the positioning spring (213) is engaged with the positioning seat (212), and the other end of the positioning spring (213) is engaged with the slider (21). The positioning spring (213) is used to push the positioning block (2) to fit against the side wall of the positioning seat (212) on the other side.

5. The quick-connect structure for an interior ceiling frame according to claim 1, characterized in that, A limiting seat (234) is movably provided on the pull rod (23), and the limiting seat (234) is installed on the connecting cover (1). A connecting rod (231) is installed at the end of the pull rod (23), and a sliding rod (232) is installed at the end of the connecting rod (231). A pair of arched brackets (233) are installed on the rocker arm (221), and the connecting rod (231) is placed in the gap between the pair of arched brackets (233), and slides in the gap formed between the sliding rod (232), the arched brackets (233), and the rocker arm (221).

6. The quick-connect structure for an interior ceiling frame according to claim 1, characterized in that, The center of rotation of the cover plate (3) is equipped with a positioning shaft (31), and the two ends of the positioning shaft (31) are rotatably connected to the connecting cover (1). The connection point between the ceiling keel frame (112) and the cover plate (3) and the connection point between the baffle (32) and the cover plate (3) are located on both sides of the positioning shaft (31).

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