Integrated ceiling veneer mounting structure

Abstract

The invention relates to the technical field of ceiling veneers, in particular to an integrated ceiling veneer mounting structure which comprises two first frames and two second frames, and a plurality of edge panels, a plurality of middle end panels and a ceiling lamp are arranged on the two first frames and the two second frames. Limiting mechanisms used for limiting the upper end and the lower end of the edge panel are arranged at the two first frames and the two second frames, and auxiliary supporting mechanisms used for assisting in supporting the ceiling lamp are arranged at the two second frames. The four lower end limiting plates are firstly pushed to incline downwards, the space at the edges of the first frame and the second frame is expanded, so that one end of the edge panel is located above the lower end limiting plates, and then the four lower end limiting plates are sequentially pushed until the upper ends of the lower end limiting plates abut against the lower end of the edge panel; the movable rod drives the lower end of the upper end limiting plate to abut against the upper end of the edge panel and provides enough limiting for the upper end and the lower end of the edge panel at the edge of the frame.

Description

Technical Field

[0001] The present invention relates to the technical field of ceiling decorative panels, and in particular to an installation structure of an integrated ceiling decorative panel. Background Art

[0002] A ceiling refers to a kind of decoration for the top decoration of a housing living environment. Simply put, it refers to the decoration of the ceiling and is one of the important parts of interior decoration.

[0003] During the installation of existing integrated ceilings in kitchens and bathrooms, first, four side frames are formed into a rectangular frame at the side end of the roof, and then the panels located at the edge of the side frames are installed. The side frames are L-shaped plate structures composed of vertical plates and horizontal plates. This causes limited space at the edge of the side frames when placing the edge panels above the horizontal plates of the side frames, and the edge panels are prone to movement interference with the horizontal plates of the side frames. Moreover, a plurality of transverse keels provided above the side frames are all far from the edge of the side frames, so that one end of the edge panel is snap-connected to the transverse keel, and the other end of the edge panel is directly placed above the horizontal plate of the side frame, resulting in insufficient limitation of the other end of the edge panel and being not conducive to the long-term stable placement of the edge panel. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the edge panel is prone to movement interference with the horizontal plate of the side frame, and at the same time, there is insufficient limitation of the other end of the edge panel, and an installation structure of an integrated ceiling decorative panel is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An installation structure of an integrated ceiling decorative panel includes two first side frames and two second side frames. A plurality of edge panels, a plurality of middle panels and a ceiling lamp are arranged at the two first side frames and the two second side frames. A set of lower limiting plates and upper limiting plates that perform mutually reverse linear motion are arranged at the two first side frames and the two second side frames. A limiting mechanism for limiting the upper and lower ends of the edge panel is arranged at the two first side frames and the two second side frames. A support rod movably connected to the ceiling lamp is slidably arranged at the two second side frames. An auxiliary support mechanism driven by the limiting mechanism in a limiting motion and used for assisting in supporting the ceiling lamp is arranged at the two second side frames.

[0007] Preferably, the two first side frames and the two second side frames form a rectangular frame. Four vertical plates are fixedly connected to the upper end of one edge panel, the upper end of one middle panel and the upper end of one ceiling lamp. Three transverse keels and one vertical keel are arranged at the upper ends of the plurality of edge panels, and one vertical keel is fixedly connected to the three transverse keels through a U-shaped fixture.

[0008] Preferably, a clamping groove is formed in one of the vertical plates, and a clamping convex block is fixedly connected inside one of the transverse keels, and the clamping convex block is movably sleeved in the clamping groove.

[0009] Preferably, the limiting mechanism includes a driving component and a locking component. The driving component includes four rotating shafts, and the four rotating shafts are respectively rotatably installed in two first side frames and two second side frames. A fixed through groove is formed in each of the two first side frames and the two second side frames. A connecting rod is fixedly sleeved on one of the rotating shafts at the fixed through groove, and one end of the connecting rod outside the fixed through groove is fixedly connected to the lower limiting plate.

[0010] Preferably, the driving component further includes four groups of first gears, and the four groups of first gears are respectively key-connected to the four rotating shafts. First racks meshing with the first gears are slidably connected in each of the two first side frames and the two second side frames. A group of first upper through grooves are formed in each of the two first side frames and the two second side frames. A group of moving rods are fixedly connected to a group of the first racks, and one of the moving rods is fixedly connected to the upper limiting plate.

[0011] Preferably, the upper end of the lower limiting plate is movably abutted against the lower end of the edge panel, the lower end of the upper limiting plate is movably abutted against the upper end of the edge panel, and a group of the moving rods are slidably sleeved in a group of the first upper through grooves.

[0012] Preferably, the locking component includes four shielding plates, and the four shielding plates are fixedly connected to the lower ends of the four connecting rods. An L-shaped rod is rotatably installed at the lower end of one of the fixed through grooves. Fixed seats are fixedly connected in each of the two first side frames and the two second side frames. A first magnet and a second magnet are respectively fixedly installed at the side ends of the L-shaped rod and the fixed seat.

[0013] Preferably, the upper ends of the L-shaped rods are movably abutted against the lower end of the lower limiting plate and the lower ends of the shielding plates, and the first magnet and the second magnet attract each other with opposite poles.

[0014] Preferably, the auxiliary support mechanism includes a mounting component and a support component. The mounting component includes two fixed brackets, and the two fixed brackets are fixedly connected to the upper end of the ceiling lamp. The two fixed brackets are fixedly connected to the vertical keel through mounting rods.

[0015] Preferably, the support assembly includes two sets of second gears. One set of the second gears is key-connected to a rotating shaft inside a second frame. Two second racks meshing with the second gears are slidably installed inside the two second frames. A set of second upper through grooves are formed inside each of the two second frames. The set of second racks are fixedly connected to a set of support rods. The support rods are slidably connected to the second upper through grooves. A support opening is formed in a fixed bracket, and the support rods are slidably sleeved in the support opening.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. First, the present invention pushes the four lower limit plates downward to incline, and expands the space at the edges of the first frame and the second frame, so as to place one end of the edge panel above the lower limit plate. Then, the four lower limit plates are pushed in sequence until the upper ends of the lower limit plates abut against the lower ends of the edge panel, and the moving rod drives the lower end of the upper limit plate to abut against the upper end of the edge panel, providing sufficient limit for the upper and lower ends of the edge panel at the edge of the frame, so as to improve the stability of the edge panel.

[0018] 2. When the upper and lower ends of the edge panel are both limited, the ceiling lamp is installed at the vertical keel, and the support rods move together towards the ceiling lamp until the support rods are located in the support openings, connecting the two second frames to the ceiling lamp to assist in supporting the ceiling lamp, so that the weight of the ceiling lamp is distributed to the vertical keel and the second frames, reducing the load-bearing burden on the vertical keel. Then, the L-shaped rod abuts against the lower limit plate, and the positions of the L-shaped rod are pre-locked through the attractive force between the opposite poles of the first magnet and the second magnet, facilitating subsequent secondary locking of the L-shaped rod and the lower limit plate with bolts.

[0019] 3. When the secondary locking of the L-shaped rod and the lower limit plate is completed, the L-shaped rod abuts against the shielding plate and the lower limit plate. Thus, while maintaining the limiting state of the lower limit plate on the edge panel, the shielding plate and the lower limit plate together fill the fixing through grooves, preventing external dust from entering the frame through the fixing through grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an integrated ceiling decorative panel installation structure proposed by the present invention;

[0021] Figure 2 is a bottom view of an integrated ceiling decorative panel installation structure proposed by the present invention;

[0022] Figure 3 is a top cross-sectional view of an integrated ceiling decorative panel installation structure proposed by the present invention;

[0023] Figure 4 In the present invention Figure 3Schematic enlarged view of part A;

[0024] Figure 5 In the present invention Figure 3 Schematic enlarged view of part B;

[0025] Figure 6 Front sectional schematic of an integrated ceiling decorative panel installation structure proposed by the present invention Figure 1 ;

[0026] Figure 7 In the present invention Figure 6 Schematic enlarged view of part C;

[0027] Figure 8 In the present invention Figure 6 Schematic enlarged view of part D;

[0028] Figure 9 In the present invention Figure 6 Schematic enlarged view of part E;

[0029] Figure 10 Front sectional schematic of an integrated ceiling decorative panel installation structure proposed by the present invention Figure 2 ;

[0030] Figure 11 In the present invention Figure 10 Schematic enlarged view of part F;

[0031] Figure 12 In the present invention Figure 10 Schematic enlarged view of part G;

[0032] Figure 13 In the present invention Figure 10 Schematic enlarged view of part H;

[0033] Figure 14 Front sectional schematic of an integrated ceiling decorative panel installation structure proposed by the present invention Figure 3 ;

[0034] Figure 15 In the present invention Figure 14 Schematic enlarged view of part I;

[0035] Figure 16 In the present invention Figure 14 Schematic enlarged view of part J;

[0036] Figure 17 In the present invention Figure 14 Schematic enlarged view of part K.

[0037] In the figure: 1. First border; 2. Second border; 3. Edge panel; 4. Middle-end panel; 5. Ceiling lamp; 6. Vertical plate; 7. Horizontal keel; 8. Card slot; 9. Card convex block; 10. Vertical keel; 11. U-shaped fixture; 12. Rotating shaft; 13. Fixed through slot; 14. Connecting rod; 15. Lower end limiting plate; 16. First gear; 17. First rack; 18. First upper through slot; 19. Moving rod; 20. Upper end limiting plate; 21. Baffle; 22. L-shaped rod; 23. Fixed seat; 24. First magnet; 25. Second magnet; 26. Fixed bracket; 27. Mounting rod; 28. Support port; 29. Second gear; 30. Second rack; 31. Second upper through slot; 32. Support rod. Detailed implementation mode

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0039] Refer to Figures 1 - 17 , an integrated ceiling decorative panel installation structure, including two first borders 1 and two second borders 2, and this integrated ceiling decorative panel is used for the roofs of kitchens and bathrooms. As shown in the attached Figure 2 figure, during the ceiling installation process, first form a rectangular frame with two first borders 1 and two second borders 2, and install it to the side end of the roof through the threaded holes and bolts at the side ends of the first border 1 and the second border 2. Then, multiple edge panels 3, multiple middle-end panels 4 and a ceiling lamp 5 are arranged at the two first borders 1 and the two second borders 2. A limiting mechanism for limiting the upper and lower ends of the edge panel 3 is arranged at the two first borders 1 and the two second borders 2, and an auxiliary support mechanism for assisting in supporting the ceiling lamp 5 is arranged at the two second borders 2.

[0040] Preferably, four vertical plates 6 are fixedly connected to the upper ends of one edge panel 3, one middle-end panel 4 and one ceiling lamp 5. Both the edge panel 3 and the middle-end panel 4 are made of aluminum alloy. The vertical plate 6 at the edge of the edge panel 3 located at the border is pre-cut to avoid interference between this vertical plate 6 and the border. As shown in the attached Figure 2 figure, when the edge panel 3 is adjacent to two borders at the same time, cut two vertical plates 6, and when the edge panel 3 is only adjacent to one border, cut one vertical plate 6. Three horizontal keels 7 and one vertical keel 10 are arranged at the upper ends of multiple edge panels 3. The vertical keel 10 is installed to the top end of the roof through a hanging wire rod. Then, one vertical keel 10 is fixedly connected to the three horizontal keels 7 through a U-shaped fixture 11 and bolts.

[0041] And as shown in the attached Figure 10 figure and the attached Figure 11As shown, a vertical plate 6 is provided with a clamping groove 8. The cross-section of the transverse keel 7 is a U-shaped structure, and a clamping convex block 9 is fixedly connected inside the cross-section of the transverse keel 7. After the two first frames 1 and the two second frames 2 are installed, first insert the vertical plate 6 at the end of the edge panel 3 away from the edge of the frame into the transverse keel 7, and the clamping convex block 9 is movably sleeved in the clamping groove 8, so that the end of the edge panel 3 away from the edge of the frame is snap-connected to the transverse keel 7. The two vertical plates 6 of the ceiling lamp 5 are directly inserted into two adjacent transverse keels 7 for pre-positioning, so as to facilitate the subsequent connection of the ceiling lamp 5 to the vertical keel 10, and the two vertical plates 6 of the middle panel 4 are directly inserted into two adjacent transverse keels 7 for installation.

[0042] Preferably, the limiting mechanism includes a driving component and a locking component. The driving component includes four rotating shafts 12, and the four rotating shafts 12 are respectively rotatably installed in the two first frames 1 and the two second frames 2. A fixed through groove 13 is provided in both the two first frames 1 and the two second frames 2. A connecting rod 14 is fixedly sleeved on a rotating shaft 12 at the fixed through groove 13. One end of a connecting rod 14 outside the fixed through groove 13 is fixedly connected with a lower limiting plate 15. Before installing the edge panel 3, first push the four lower limiting plates 15 to incline downward to expand the space at the edge of the frame, so as to facilitate the snap connection between the end of the edge panel 3 away from the edge of the frame and the transverse keel 7, and the end of the edge panel 3 close to the edge of the frame is located above the lower limiting plate 15.

[0043] The driving component further includes four groups of first gears 16, and the four groups of first gears 16 are respectively key-connected to the four rotating shafts 12. First racks 17 meshing with the first gears 16 are slidably connected in both the two first frames 1 and the two second frames 2. A group of first upper through grooves 18 are provided in both the two first frames 1 and the two second frames 2. A group of first racks 17 are fixedly connected with a group of moving rods 19, and an upper limiting plate 20 is fixedly connected to a moving rod 19. A group of moving rods 19 are slidably sleeved in a group of first upper through grooves 18; when the end of the edge panel 3 close to the edge of the frame is located above the lower limiting plate 15, as shown in the attachment Figure 6 As shown, push the right lower limiting plate 15 to rotate upward to make the limiting mechanism in a limiting motion until the upper end of the right lower limiting plate 15 is movably abutted against the lower end of the edge panel 3 close to the edge of the frame. The right lower limiting plate 15 drives the right rotating shaft 12 and the right first gear 16 to rotate clockwise through the right end connecting rod 14. Since the right first gear 16 and the right first rack 17 are in meshing transmission, the right first rack 17 drives the right upper limiting plate 20 to move downward through the right moving rod 19, so that the lower end of the right upper limiting plate 20 is movably abutted against the upper end of the edge panel 3 close to the edge of the frame to improve the stability of the edge panel 3.

[0044] Preferably, the locking assembly includes four shielding plates 21 which are fixedly connected to the lower ends of four connecting rods 14. An L-shaped rod 22 is rotatably installed at the lower end of a fixed through groove 13. Fixed seats 23 are fixedly connected inside both of the two first frames 1 and inside both of the two second frames 2. A first magnet 24 and a second magnet 25 are respectively fixedly installed at the side end of the L-shaped rod 22 and the side end of the fixed seat 23. When the upper and lower ends of the edge panel 3 near the edge of the frame are limited, rotate the L-shaped rod 22 towards the fixed through groove 13 so that the upper ends of the L-shaped rod 22 are respectively in movable contact with the lower end of the lower limiting plate 15 and the lower end of the shielding plate 21 to maintain the limiting state of the upper and lower ends of the edge panel 3 near the edge of the frame. At the same time, the first magnet 24 and the second magnet 25 are attached to each other and attract with opposite poles, and the position of the L-shaped rod 22 is pre-locked to facilitate subsequent secondary locking of the L-shaped rod 22 and the lower limiting plate 15 by bolts. And the shielding plate 21 and the lower limiting plate 15 together fill the fixed through groove 13 to prevent external dust from entering the frame through the fixed through groove 13.

[0045] The auxiliary support mechanism includes an installation assembly and a support assembly. The installation assembly includes two fixed brackets 26 which are fixedly connected to the upper end of the ceiling lamp 5. The two fixed brackets 26 are fixedly connected to the vertical keel 10 through installation rods 27 and bolts.

[0046] Preferably, the support assembly includes two groups of second gears 29. One group of second gears 29 is key-connected to a rotating shaft 12 inside a second frame 2. Second racks 30 which are meshed with the second gears 29 are slidably installed inside both of the two second frames 2. A group of second upper through grooves 31 are respectively opened inside both of the two second frames 2. A support rod 32 which is fixedly connected to the second racks 30 is slidably connected to the second upper through grooves 31. A support opening 28 is opened in a fixed bracket 26. As shown in the attached Figure 14 and the attached Figure 17 figure, when the limiting mechanism is in the limiting movement, make the upper end of the right lower limiting plate 15 be in movable contact with the lower end of the edge panel 3 near the edge of the frame. The right rotating shaft 12 drives the right second gear 29 to rotate clockwise. Since the right second gear 29 is in meshing transmission with the right second rack 30, the right second rack 30 drives the right support rod 32 to move leftward. And the right support rod 32 is slidably sleeved in the right support opening 28, so that the second frame 2 is connected to the ceiling lamp 5 to assist in supporting the ceiling lamp 5, so that the weight of the ceiling lamp 5 is distributed to the vertical keel 10 and the second frame 2 to reduce the load-bearing burden of the vertical keel 10. And as shown in the attached Figure 1 figure, the upper limiting plate 20 at the middle end of the frame is divided into two monomers to facilitate the movement of the support rod 32 through the gap between the two monomers.

[0047] It should be specifically noted that, as shown in the attached Figure 2As shown, two middle panels 4 can be removed through a suction cup, so as to facilitate the maintenance of the upper end of the ceiling lamp 5. The ceiling lamp 5 can also be installed at the positions of the two middle panels 4 in the attachment. At the same time, since there are two sets of support rods 32 to facilitate the replacement and installation position of the ceiling lamp 5, the support rods 32 can still assist in supporting the ceiling lamp 5. Figure 2 In the attachment, at the positions of the two middle panels 4. At the same time, since there are two sets of support rods 32 to facilitate the replacement and installation position of the ceiling lamp 5, the support rods 32 can still assist in supporting the ceiling lamp 5.

[0048] The functional principle of the present invention can be described through the following operation methods:

[0049] First, form a rectangular frame with two first side frames 1 and two second side frames 2, and install it at the side end of the roof through bolts. Then, install a vertical keel 10 at the top end of the roof through a hanging screw rod. The three horizontal keels 7 are connected to the vertical keel 10 through U-shaped clamps 11 and bolts. After that, cut the vertical plates 6 of the edge panel 3 near the two first side frames 1 and two second side frames 2, and insert multiple edge panels 3 and a ceiling lamp 5 into the corresponding horizontal keels 7. Then, connect the installation rod 27 to the vertical keel 10 through bolts, so that the ceiling lamp 5 is installed at the vertical keel 10.

[0050] After that, push the four lower limit plates 15 in sequence to make the limit mechanism in a limit movement, so that the lower limit plates 15 deflect towards the edge panel 3 until the upper end of the lower limit plate 15 abuts against the lower end of the edge panel 3. The moving rod 19 drives the upper limit plate 20 to move downward, so that the lower end of the upper limit plate 20 abuts against the upper end of the edge panel 3, and both the upper and lower ends of the edge panel 3 are limited. At the same time, the support rod 32 moves towards the ceiling lamp 5 until the support rod 32 is located in the support opening 28, so that the two second side frames 2 are connected to the ceiling lamp 5 to assist in supporting the ceiling lamp 5. Connect the L-shaped rod 22 and the lower limit plate 15 through bolts to lock the lower limit plate 15. Finally, insert the middle panel 4 into the remaining space between the two first side frames 1 and two second side frames 2.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An integrated ceiling decorative panel installation structure, comprising two first frames (1) and two second frames (2), characterized in that: The two first frames (1) and the two second frames (2) are provided with a plurality of edge panels (3), a plurality of middle panels (4) and a ceiling lamp (5); the two first frames (1) and the two second frames (2) are provided with a group of lower end limiting plates (15) and upper end limiting plates (20) that perform mutually opposite linear motion; the two first frames (1) and the two second frames (2) are provided with limiting mechanisms for limiting the upper and lower ends of the edge panels (3); the two second frames (2) are provided with support rods (32) that are movably connected to the ceiling lamp (5); and the two second frames (2) are provided with auxiliary support mechanisms that are driven by the limiting mechanisms in limiting motion and are used to auxiliary support the ceiling lamp (5).

2. The integrated ceiling decorative panel installation structure according to claim 1, characterized in that: The two first frames (1) and the two second frames (2) form a rectangular frame; the upper end of an edge panel (3), the upper end of a middle panel (4) and the upper end of a ceiling lamp (5) are all fixedly connected with four vertical plates (6); the upper ends of the edge panels (3) are provided with three transverse keels (7) and one vertical keel (10); and the vertical keel (10) is fixedly connected with the three transverse keels (7) via a U-shaped clamp (11).

3. The integrated ceiling decorative panel installation structure according to claim 2, characterized in that: A clamping groove (8) is provided on one of the vertical plates (6), and a clamping protrusion (9) is fixedly connected inside one of the transverse keels (7), and the clamping protrusion (9) is movably sleeved in the clamping groove (8).

4. The integrated ceiling decorative panel installation structure according to claim 1, characterized in that: The limiting mechanism comprises a driving assembly and a locking assembly, wherein the driving assembly comprises four rotating shafts (12), wherein the four rotating shafts (12) are respectively rotatably mounted in two first frame frames (1) and two second frame frames (2), wherein a fixed through slot (13) is provided in each of the two first frame frames (1) and the two second frame frames (2), wherein one of the rotating shafts (12) is located at the fixed through slot (13) and is fixedly sleeved with a connecting rod (14), and one end of the connecting rod (14) is located outside the fixed through slot (13) and is fixedly connected to a lower end limiting plate (15).

5. The integrated ceiling decorative panel installation structure according to claim 4, characterized in that: The driving assembly further comprises four groups of first gears (16), the four groups of first gears (16) are key-connected to four rotating shafts (12) respectively, first racks (17) meshingly connected with the first gears (16) are slidably connected in the two first frame frames (1) and the two second frame frames (2), a group of first upper end through grooves (18) are provided in the two first frame frames (1) and the two second frame frames (2), a group of the first racks (17) is fixedly connected to a group of moving rods (19), and one of the moving rods (19) is fixedly connected to an upper end limit plate (20).

6. The integrated ceiling decorative panel installation structure according to claim 5, characterized in that: The upper end of the lower end limit plate (15) is movably abutted against the lower end of the edge panel (3), the lower end of the upper end limit plate (20) is movably abutted against the upper end of the edge panel (3), and a group of the moving rods (19) are slidably mounted in a group of first upper end through grooves (18).

7. The integrated ceiling decorative panel installation structure according to claim 6, characterized in that: The locking assembly comprises four shielding plates (21), the four shielding plates (21) are fixedly connected to the lower ends of four connecting rods (14), an L-shaped rod (22) is rotatably mounted on the lower end of one of the fixed through slots (13), a fixing seat (23) is fixedly connected in both the two first frame frames (1) and the two second frame frames (2), and a first magnet (24) and a second magnet (25) are fixedly mounted on the side ends of the L-shaped rod (22) and the side ends of the fixing seat (23), respectively.

8. The integrated ceiling decorative panel installation structure according to claim 7, characterized in that: The upper ends of the L-shaped rods (22) are movably opposed to the lower ends of the lower limit plates (15) and the lower ends of the shielding plates (21), and the first magnets (24) and the second magnets (25) attract each other with opposite poles.

9. The integrated ceiling decorative panel installation structure according to claim 8, characterized in that: The auxiliary support mechanism comprises a mounting assembly and a support assembly, wherein the mounting assembly comprises two fixed brackets (26), wherein the two fixed brackets (26) are fixedly connected to the upper end of the ceiling lamp (5), and the two fixed brackets (26) are fixedly connected to the vertical keel (10) via a mounting rod (27).

10. The integrated ceiling decorative panel installation structure according to claim 9, characterized in that: The support assembly comprises two groups of second gears (29), one group of the second gears (29) is key-connected to a rotating shaft (12) in a second frame (2), a second rack (30) meshing with the second gear (29) is slidably mounted in the two second frames (2), a group of second upper end through grooves (31) are provided in the two second frames (2), a group of the second racks (30) is fixedly connected to a group of support rods (32), the support rods (32) are slidably connected to the second upper end through grooves (31), and a support opening (28) is provided in one of the fixed brackets (26), and the support rod (32) is slidably mounted in the support opening (28).

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