An assembled ceiling edge closing device and its installation method

Abstract

The present invention provides a prefabricated ceiling edge trimming device and an installation method thereof, belonging to the technical field of ceiling edge trimming. The prefabricated ceiling edge trimming device includes an edge trimming member, a gap forming member, a plug-in fixing member, an edge trimming fixing member, and a ceiling board. In the present invention, one end of the edge trimming member is fixedly connected to the wall through the edge trimming fixing member, one end of the bottom of the ceiling board located at the end in the ceiling is lapped on the top of the other end of the edge trimming member, one end of the gap forming member is fixedly connected to the edge trimming member, and a fixed gap is formed between the other end of the gap forming member and the top of the ceiling board. The plug-in fixing member is inserted into the fixed gap, so that the top of the plug-in fixing member abuts against the gap forming member and the bottom abuts against the ceiling board to fix the ceiling board. When the ceiling board is impacted by an external force, the plug-in fixing member can squeeze the ceiling board, preventing the ceiling board from separating from the edge trimming member and the ceiling board from shaking, improving the stability of the edge trimming installation of the ceiling board located at the end in the ceiling, and the installation is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of ceiling edge finishing, and particularly relates to a prefabricated ceiling edge finishing device and an installation method thereof. Background Art

[0002] When installing a traditional ceiling, the ceiling board at the end of the suspension is not firmly connected to the wall. The ceiling board is lapped on the edge finishing member, so that the edge finishing member finishes the edge of the ceiling. However, in this installation method, the ceiling board is only lapped on the edge finishing member, which makes the ceiling board prone to looseness in the later stage. One end of the ceiling board lapped on the edge finishing member is prone to move upward, causing the separation of the ceiling board and the edge finishing member, and the ceiling board is prone to fall off, posing a great safety hazard. Summary of the Invention

[0003] The purpose of the present invention is to propose a prefabricated ceiling edge finishing device and an installation method thereof in view of the above-mentioned deficiencies of the prior art.

[0004] The present invention proposes a prefabricated ceiling edge finishing device and an installation method thereof, including an edge finishing member, a gap forming member, a plug-in fixing member, an edge fixing member for fixedly connecting one end of the edge finishing member to the wall, and a ceiling board at the end of the suspension. One end of the bottom of the ceiling board is lapped on the top of the other end of the edge finishing member; one end of the gap forming member is fixedly connected to the edge finishing member, and the other end forms a fixed gap with the top of the ceiling board. The plug-in fixing member is plugged into the fixed gap, so that the top of the plug-in fixing member abuts against the gap forming member and the bottom abuts against the ceiling board to fix the ceiling board.

[0005] Further, the edge finishing member includes a mounting plate and a supporting structure for supporting the ceiling board. A plurality of mounting holes are provided on the mounting plate. One end of the edge fixing member passes through the mounting hole and is fixedly connected to the wall. The gap forming member includes a first fixing plate fixedly connected to one side of the mounting plate away from the wall and a second fixing plate for forming a fixed gap with the top of the ceiling board.

[0006] Further, the supporting structure includes a supporting plate for supporting the ceiling board, a first limiting plate connected to the supporting plate for limiting the ceiling board, and a first connecting plate with two ends respectively connected to the first limiting plate and the mounting plate.

[0007] Further, the plug-in fixing member includes an extrusion block. The extrusion block includes a ceiling abutting portion provided at the bottom for abutting against the ceiling board and a fixed abutting portion provided at the top for abutting against the bottom of the second fixing plate.

[0008] Further, the edge finishing member further includes a second limiting plate connected to the top of the mounting plate and a slot formed by the first connecting plate, the mounting plate, and the second limiting plate. The first fixing plate is plugged into the slot.

[0009] Furthermore, the edge trimming member further includes a third limiting plate with one end connected to the top of the first connecting plate, a fourth limiting plate with one end connected to the other end of the second limiting plate, and a limiting through hole provided between the other end of the third limiting plate and the other end of the fourth limiting plate. The gap forming member further includes a second connecting plate connected to the first fixing plate and a third connecting plate with one end connected to one side end of the second connecting plate and the other end passing through the limiting through hole and connected to the second fixing plate. The second connecting plate abuts against the side surface of the mounting plate away from the wall surface.

[0010] Furthermore, the plug-in fixing member further includes a portable block protruding from one side surface of the extrusion block and having a cross-sectional area smaller than that of the extrusion block.

[0011] Furthermore, the fixed abutting portion is inclined upward along the direction from one side end away from the portable block to the other side end, and a plurality of extrusion protrusions for increasing the extrusion force between the second fixing plate and the fixed abutting portion are provided on the fixed abutting portion.

[0012] Furthermore, the fixed abutting portion is inclined upward along the direction from one side end away from the portable block to the other side end, and the bottom of the second fixing plate is provided with an inclined surface matching the fixed abutting portion.

[0013] Furthermore, the plurality of extrusion protrusions are arranged at equal intervals.

[0014] The prefabricated ceiling edge trimming device and its installation method of the present invention have the following beneficial effects:

[0015] One end of the edge trimming member is fixedly connected to the wall surface through the edge trimming fixing member, one end of the bottom of the ceiling board at the end in the ceiling is lapped on the top of the other end of the edge trimming member, one end of the gap forming member is fixedly connected to the edge trimming member, a fixed gap is formed between the other end of the gap forming member and the top of the ceiling board, the plug-in fixing member is inserted into the fixed gap, so that the top of the plug-in fixing member abuts against the gap forming member and the bottom abuts against the ceiling board to fix the ceiling board. When the ceiling board is impacted by an external force and moves in the direction away from the edge trimming member, the plug-in fixing member can extrude the ceiling board, preventing the ceiling board from separating from the edge trimming member, and the ceiling board will not shake, improving the stability of the edge trimming installation of the ceiling board at the end in the ceiling, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings incorporated into the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention. In these drawings, like reference numerals are used to represent like elements. The following drawings in the description are some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a partial structural schematic diagram of an assembled ceiling edge trimming device and its installation method according to an embodiment of the present invention;

[0018] Figure 2 It is a side view of the whole device when the moving direction of the extrusion block in an assembled ceiling edge trimming device and its installation method according to an embodiment of the present invention is perpendicular to the axis of the second fixing plate;

[0019] Figure 3 It is a side view of an assembled ceiling edge trimming device and its installation method according to an embodiment of the present invention when one end of the ceiling board is inserted into the edge trimming member;

[0020] Figure 4 It is a partial front view of an assembled ceiling edge trimming device and its installation method according to an embodiment of the present invention when the moving direction of the extrusion block is perpendicular to the horizontal axis of the second fixing plate and the extrusion protrusion abuts against the bottom of the second fixing plate;

[0021] Figure 5 It is a partial side view of an assembled ceiling edge trimming device and its installation method according to an embodiment of the present invention when the moving direction of the extrusion block is parallel to the horizontal axis of the second fixing plate and the fixed abutting portion cooperates with the inclined surface.

[0022] In the figure: 1-ceiling board, 2-edge trimming member, 21-mounting plate, 22-supporting plate, 221-collision prevention and strengthening block, 23-first limiting plate, 24-first connecting plate, 25-second limiting plate, 26-fourth limiting plate, 27-third limiting plate, 28-slot, 3-gap forming member, 31-first fixing plate, 32-second fixing plate, 321-inclined surface, 33-second connecting plate, 34-third connecting plate, 35-fastening structure, 4-insertion fixing member, 41-extrusion block, 411-ceiling abutting portion, 412-fixed abutting portion, 42-portable block, 43-extrusion protrusion, 5-edge trimming fixing member. Specific embodiments

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other arbitrarily.

[0024] Please refer to Figures 1 to 5An edge trimming device for an assembled ceiling and its installation method according to an embodiment of the present invention include an edge trimming member 2, a gap forming member 3, an insertion fixing member 4, an edge trimming fixing member 5 for fixedly connecting one end of the edge trimming member 2 to a wall surface, and a ceiling board 1 located at the top end of the ceiling. One end of the bottom of the ceiling board 1 is lapped on the top of the other end of the edge trimming member 2; one end of the gap forming member 3 is fixedly connected to the edge trimming member 2, and the other end forms a fixed gap with the top of the ceiling board 1. The insertion fixing member 4 is inserted into the fixed gap, so that the bottom of the insertion fixing member 4 presses the ceiling board 1 to fix the ceiling board 1.

[0025] Here, a snap line is drawn at a first preset height on the wall surface. The two ends of the edge trimming fixing member 5 are respectively connected to the wall surface at the snap line position and the edge trimming member 2, so as to fix one end of the edge trimming member 2 at the first preset height. Then, the ceiling is installed on the edge trimming member 2 in sequence. When installing the first ceiling board 1 and the last ceiling board 1 in the ceiling installation, the edge of the ceiling board 1 needs to be trimmed. Therefore, the ceiling board 1 located at the top end of the ceiling in this application can be either the first board installed in the ceiling or the last board installed in the ceiling. One end of the bottom of the ceiling board 1 is lapped on the top of the other end of the edge trimming member 2, realizing the edge trimming of the ceiling board 1 by the edge trimming member 2.

[0026] Specifically, if the top of the ceiling panel 1 is not fixed, when an external force impacts the bottom of the ceiling panel 1 and causes it to move upward, one end of the ceiling panel 1 will separate from the edge trim member 2, one end of the ceiling panel 1 will warp, and after one end of the ceiling panel 1 moves upward for a certain distance, one end of the ceiling panel 1 will move downward and impact the other end of the edge trim member 2, which is likely to cause damage to the edge trim member 2. In ceiling installation, generally, adjacent ceiling panels 1 are connected by a butt joint device. When one end of the ceiling panel 1 warps, the other end of the ceiling panel 1 is likely to pull the butt joint device, causing damage to the ceiling panel 1 and the butt joint device. When one end of the ceiling panel 1 continues to move upward, causing the other end of the ceiling panel 1 to move away from the butt joint device, the ceiling panel 1 and the butt joint device will separate, and the other end of the ceiling panel 1 will be suspended, and the ceiling panel 1 is likely to fall to the ground, posing a relatively large safety hazard. Therefore, to solve the above problems in this application, after one end of the bottom of the ceiling panel 1 is lapped on the other end of the edge trim member 2, one end of the gap forming member 3 is fixedly connected to the edge trim member 2, and a fixed gap is formed between the other end of the gap forming member 3 and the top of the ceiling panel 1. The plug-in fixing member 4 is inserted into the fixed gap, so that the top of the plug-in fixing member 4 abuts against the gap forming member 3 and the bottom abuts against the ceiling panel 1. When the ceiling panel 1 is impacted by an external force and moves upward, the ceiling panel 1 pushes the plug-in fixing member 4, the plug-in fixing member 4 pushes the gap forming member 3, and the gap forming member 3 pushes the edge trim member 2. Since the edge fixing member 5 fixedly connects the edge trim member 2 to the wall, the edge trim member 2 cannot move. Since the gap forming member 3 is fixedly connected to the edge trim member, the gap forming member 3 cannot move. Since the top of the plug-in fixing member 4 abuts against the gap forming member 3, the plug-in fixing member 4 cannot move upward. Since the bottom of the plug-in fixing member 4 abuts against the ceiling panel 1, the plug-in fixing member 4 can stop the ceiling panel 1, preventing the ceiling panel 1 from moving, enabling the ceiling to be tightly connected to the wall, and the ceiling panel 1 will not shake. The installation method is simple, improving the overall quality of ceiling installation.

[0027] The edge trim member 2 may include a mounting plate 21 and a support structure for supporting the ceiling panel 1. A plurality of mounting holes are provided on the mounting plate 21. One end of the edge fixing member 5 passes through the mounting holes and is fixedly connected to the wall. The gap forming member 3 includes a first fixing plate 31 fixedly connected to one side of the mounting plate 21 away from the wall and a second fixing plate 32 for forming a fixed gap with the top of the ceiling panel 1.

[0028] Specifically, if the installation holes are not pre-opened on the mounting plate 21, it is necessary to design the opening positions on the mounting plate 21 and drill holes on-site, which makes the process complex. The installation holes in this application can be used to position the installation of the edge-fixing member 5. Place the mounting plate 21 properly, design the installation position of the edge-fixing member 5 on the wall according to the positions of the installation holes, and pass one end of the edge-fixing member 5 through the installation hole and fixedly connect it to the corresponding installation position on the wall, so as to fix the edge member 2 to the wall through the edge-fixing member 5, realizing assembly installation with convenient installation. The mounting plate 21 can be a first straight plate, the mounting plate 21 can be parallel to the wall, multiple installation holes can be equidistantly arranged, and the installation holes can be circular holes. The edge-fixing member 5 in this application can include an expansion tube fixed in the wall, a first thread groove arranged inside the expansion tube, and a first screw with one end passing through the first installation hole and screwed into the first thread groove. A second thread groove is pre-opened on the wall, and the edge-fixing member 5 can also be a first screw or a second screw, with one end of the first screw or the second screw passing through the installation hole and screwed into the second thread groove. The wall panel can be first installed on the wall, the support structure is placed on top of the wall panel, and then the mounting plate 21 is fixedly connected to the part of the wall above the wall surface.

[0029] Specifically, the support structure can be a second straight plate, the ceiling plate 1 is lapped on the second straight plate, a fixed gap is formed between the second fixing plate 32 and the top of the ceiling plate 1. Further, the bottom of the ceiling plate 1 and the second straight plate cooperate with each other, so that the top of the ceiling plate 1 can be parallel to the ground, and the bottom of the second fixing plate 32 can be parallel to the top of the ceiling plate 1, which is convenient for inserting the plug-in fixing member 4 into the fixed gap. Further still, the mounting plate 21 is vertically arranged, the second straight plate is vertically connected to the mounting plate 21, the second straight plate is horizontally arranged, and the first fixing plate 31 is connected to the mounting plate 21, so that a fixed gap for the plug-in fixing member 4 to be inserted can be formed between the second fixing plate 32 and the ceiling plate 1. The bottom of the second fixing plate 32 is parallel to the ceiling plate 1, which is convenient for inserting the plug-in fixing member 4 into the fixed gap.

[0030] The gap forming member 3 can also include a fixing hole arranged on the first fixing plate 31 and a fastening structure 35 with one end passing through the fixing hole and the installation hole in sequence.

[0031] Specifically, the first fixing plate 31 is arranged on the side of the mounting plate 21 away from the wall surface. The fastening structure 35 can be a screw. When the mounting hole is a threaded hole, one end of the fastening structure 35 passes through the fixing hole and is screwed to the mounting hole. When both the mounting hole and the fixing hole are threaded holes, one end of the fastening structure 35 is sequentially screwed to the fixing hole and the mounting hole. The fastening structure 35 can be a combination of a bolt and a nut or a combination of a screw and a nut. When both the mounting hole and the fixing hole are non-threaded holes and both are circular holes, one end of the bolt or the screw passes through the fixing hole and the mounting hole in sequence, and the other end of the bolt or the screw abuts against the first fixing plate 31, and the nut is screwed to one end of the bolt or the screw, and one side surface of the nut abuts against the mounting plate 21, so as to tightly connect the first fixing plate 31 and the mounting plate 21. Further, the mounting plate 21 is arranged vertically, the first fixing plate 31 can be arranged vertically, and the first fixing plate 31 can be attached to the mounting plate 21.

[0032] The supporting structure can include a supporting plate 22 for supporting the ceiling plate 1, a first limiting plate 23 connected to the supporting plate 22 for limiting the ceiling plate 1, and a first connecting plate 24 with two ends respectively connected to the first limiting plate 23 and the mounting plate 21.

[0033] Specifically, one end of the bottom of the ceiling plate 1 is lapped on the supporting plate 22, the first limiting plate 23 can limit one side end of the ceiling plate 1 close to the wall surface, and one side end of the ceiling plate 1 can abut against the first limiting plate 23. The mounting plate 21 is arranged vertically, the supporting plate 22 is arranged horizontally, the first limiting plate 23 is vertically connected to the supporting plate 22, the first connecting plate 24 is arranged horizontally, and two ends of the first connecting plate 24 are respectively vertically connected to the bottom of the mounting plate 21 and the top of the first limiting plate 23. The height of the supporting plate 22 is lower than the height of the first connecting plate 24. First, install the wall panel on the wall surface, place the first connecting plate 24 on the top of the wall panel, and then fixedly connect the mounting plate 21 to the part of the wall surface above the wall panel.

[0034] Specifically, the supporting structure further includes an anti-collision strengthening block 221 connected to the bottom of the end of the supporting plate 22 connected to the first limiting plate 23. The anti-collision strengthening block 221 can enhance the strength of the supporting plate 22 and can also buffer and protect the supporting plate 22 when the supporting plate 22 is impacted by an external force at this place, so as to avoid damage to the supporting plate 22. A first rounded corner is provided at the connection between the supporting plate 22 and the first limiting plate 23, which is convenient for the ceiling plate 1 to abut against the first limiting plate 23 when lapping on the supporting plate 22.

[0035] The plug-in fixing member 4 can include an extrusion block 41. The extrusion block 41 includes a ceiling abutting portion 411 arranged at the bottom for abutting against the ceiling plate 1 and a fixing abutting portion 412 arranged at the top for abutting against the bottom of the second fixing plate 32. The minimum distance from the fixing abutting portion 412 to the ceiling abutting portion 411 is less than or equal to the distance from the bottom of the second fixing plate 32 to the top of the ceiling plate 1.

[0036] Specifically, the fixed abutting portion 412 cooperates with the bottom of the second fixing plate 32, and the ceiling abutting portion 411 cooperates with the top of the ceiling plate 1. When the ceiling is horizontally arranged at the top, the ceiling abutting portion 411 is horizontally arranged, and when the bottom of the second fixing plate 32 is horizontally arranged, the fixed abutting portion 412 is horizontally arranged. In order to ensure that the ceiling abutting portion 411 abuts against the ceiling plate 1 and the fixed abutting portion 412 can abut against the bottom of the second fixing plate 32, the minimum distance from the fixed abutting portion 412 to the ceiling abutting portion 411 needs to be set to be less than or equal to the distance from the bottom of the second fixing plate 32 to the top of the ceiling plate 1. If the minimum distance from the fixed abutting portion 412 to the bottom is set to be greater than the distance from the bottom of the second fixing plate 32 to the top of the ceiling plate 1, the plug-in fixing member 4 cannot be inserted into the fixing gap, so that when the ceiling abutting portion 411 abuts against the top of the ceiling plate 1, the fixed abutting portion 412 cannot abut against the bottom of the second fixing plate 32, and the fixing of the ceiling plate 1 cannot be achieved.

[0037] The edge trim member 2 may further include a second limiting plate 25 connected to the top of the mounting plate 21 at one end, and a slot 28 formed by the first connecting plate 24, the mounting plate 21, and the second limiting plate 25, and the first fixing plate 31 is inserted into the slot 28.

[0038] Specifically, the second limiting plate 25 may be vertically connected to the top of the mounting plate 21. When the first connecting plate 24 is perpendicular to the bottom of the mounting plate 21, the second limiting plate 25 is parallel to the first connecting plate 24. The slot 28 is a rectangular slot 28. When the first fixing plate 31 is inserted into the slot 28, one side surface of the first fixing plate 31 abuts against the mounting plate 21, the top abuts against the second limiting plate 25, and the bottom abuts against the first connecting plate 24. The first fixing plate 31 can slide in the slot 28 so that the fixing hole on the first fixing plate 31 can be aligned with an installation hole on the mounting plate 21. The first fixing plate 31 can be in interference fit with the slot 28, so that when the first fixing plate 31 is pushed to a preset position in the slot 28, the first fixing plate 31 can be fixed in the slot 28. At the connection between the mounting plate 21 and the first connecting plate 24, a third fillet may be provided, and at the connection between the mounting plate 21 and the second limiting plate 25, a fourth fillet may be provided, so as to facilitate the insertion of the first fixing plate 31 into the slot 28.

[0039] The edge trim 2 may further include a third limiting plate 27 connected to the top of the first connecting plate 24, a fourth limiting plate 26 connected to the other end of the second limiting plate 25 and arranged in the direction towards the third limiting plate 27, and a limiting through hole provided between the third limiting plate 27 and the fourth limiting plate 26. The gap forming member 3 further includes a second connecting plate 33 connected to the first fixing plate 31 and a third connecting plate 34 with one end connected to one side end of the second connecting plate 33, the other end passing through the limiting through hole and connected to the second fixing plate 32. The second connecting plate 33 abuts against the side surface of the mounting plate 21 away from the wall surface.

[0040] Specifically, the third limiting plate 27 and the fourth limiting plate 26 can respectively stop the side surface of the first fixing plate 31 away from the mounting plate 21 to prevent the first fixing plate 31 from sliding out of the slot 28. The mounting plate 21 is vertically arranged, the first connecting plate 24 is vertically connected to the bottom of the mounting plate 21, the second limiting plate 25 is vertically connected to the top of the mounting plate 21. Both the first connecting plate 24 and the second limiting plate 25 are connected to the same side surface of the mounting plate 21. The third limiting plate 27 can be vertically connected to the first connecting plate 24, the fourth limiting plate 26 can be vertically connected to the other end of the second limiting plate 25 away from the mounting plate 21, and the fourth limiting plate 26 is arranged in the direction towards the third limiting plate 27. The second connecting plate 33 and the first fixing plate 31 can be in the same plane, the third connecting plate 34 and the second fixing plate 32 can be in the same plane. According to the position of the limiting through hole, the third connecting plate 34 is connected to the middle of the second connecting plate 33, so as to facilitate one end of the third connecting plate 34 to pass through the limiting through hole and be connected to the second connecting plate 33. The width of the second connecting plate 33 can be smaller than the width of the first fixing plate 31, the width of the third connecting plate 34 can be smaller than the width of the second fixing plate 32. The second connecting plate 33 can be connected to the middle of the first fixing plate 31, the third connecting plate 34 is connected to the middle of the second fixing plate 32, and the width of the third connecting plate 34 can be equal to the width of the second connecting plate 33. The distance between one side end of the third limiting plate 27 and the mounting plate 21 can be equal to the width of the second limiting plate 25, so that the vertical axis of the fourth limiting plate 26 can coincide with the vertical axis of the third limiting plate 27. The width of the third limiting plate 27 can be equal to the width of the fourth limiting plate 26. At this time, the horizontal axis of the limiting through hole can be parallel to the horizontal axis of the mounting plate 21. At this time, the mounting hole can be arranged in the middle of the mounting plate 21, and the fixing hole can be arranged in the middle of the first fixing plate 31, so as to facilitate one end of the fastening structure 35 to pass through the limiting through hole and be sequentially connected to the fixing hole and the mounting hole. The second connecting plate 33 and the first fixing plate 31 are in the same plane, the third connecting plate 34 and the second fixing plate 32 are in the same plane, and the third connecting plate 34 is vertically connected to the second connecting plate 33. Then the gap forming member 3 can be an angle code.

[0041] The plug-in fixing member 4 may further include a portable block 42 protruding from one side surface of the extrusion block 41 and having a cross-sectional area smaller than that of the extrusion block 41.

[0042] Specifically, by pushing one side surface of the extrusion block 41, the extrusion block 41 can be pushed to move on the ceiling board 1. Then, one side surface of the extrusion block 41 is the pushing side surface of the extrusion block 41. When the distance between the two sides of the extrusion block 41 on the pushing side surface is large and the distance between the topmost part and the bottommost part of the extrusion block 41 is large, it is not convenient to firmly hold the extrusion block 41 directly by hand on both sides of the pushing side surface of the extrusion block 41 or directly by hand on the top and bottom of the extrusion block 41. Therefore, the portable block 42 is arranged on one side surface of the extrusion block 41. When the extrusion block 41 and the portable block 42 are vertically cut along the direction parallel to the axis of the first fixing plate 31, at this time, the cross-sectional area of the obtained portable block 42 is smaller than that of the extrusion block 41. The width of the portable block 42 can be equal to the width of the extrusion block 41, and the height of the portable block 42 is smaller than the height of the highest part of the extrusion block 41. Then, it is convenient to directly hold the portable block 42, so as to pick up the plug-in fixing member 4. The portable block 42 can also enhance the strength of the extrusion block 41 and can slow down the damage to the extrusion block 41 by external forces when being impacted by external forces. The bottom of the portable block 42 can be flush with the ceiling abutting part 411. Then, the portable block 42 can abut against the bottom end of the ceiling board 1, and the extrusion block 41 can be quickly pushed by pushing the portable block 42.

[0043] See Figure 4 , the fixed abutting part 412 is inclined upward along the direction from one end away from the portable block 42 to the other end, and a plurality of extrusion protrusions 43 for increasing the extrusion force between the second fixing plate 32 and the fixed abutting part 412 are arranged on the top of the fixed abutting part 412.

[0044] Specifically, the moving direction of the extrusion block 41 is perpendicular to the axis of the second fixed plate 32. Since the second fixed plate 32 can be perpendicular to the first fixed plate 31, the moving direction of the extrusion block 41 can be parallel to the first fixed plate 31 at this time. Then, one side of the extrusion block 41 that pushes the portable block 42, i.e., the side where the portable block 42 is located, is the farthest from the second fixed plate 32. The bottom of the second fixed plate 32 can be horizontally arranged, and the fixed abutting part 412 can be inclined upward along the direction from one end far from the portable block 42 to the other end, that is, the fixed abutting part 412 is inclined upward along the direction from one end close to the second fixed plate 32 to the other end. Then, there are positions with different heights on the fixed abutting part 412. When the extrusion block 41 is pushed along the direction perpendicular to the axis of the second fixed plate 32, different heights on the fixed abutting part 412 can pass through the bottom of the second fixed plate 32. The height of the preset position on the fixed abutting part 412 matches the distance between the bottom of the second fixed plate 32 and the top of the ceiling plate 1. However, only the preset position on the fixed abutting part 412 can contact the second fixed plate 32 and cannot support the second fixed plate 32, so the ceiling plate 1 cannot be fixed. Therefore, extrusion protrusions 43 are provided on the fixed abutting part 412. Different extrusion protrusions 43 have different heights, and different extrusion protrusions 43 can match different fixed gaps. The extrusion protrusions 43 can be equivalent to forming an abutting surface on the fixed abutting part 412 that matches the bottom of the second fixed plate 32. When the height of the preset extrusion protrusion 43 matches the distance between the bottom of the second fixed plate 32 and the top of the ceiling plate 1, the top of the extrusion protrusion 43 can abut against the bottom of the second fixed plate 32. The extrusion protrusion 43 has a certain width, so the extrusion protrusion 43 can better support the second fixed plate 32, thereby improving the stability when the plug-in fixing part 4 is inserted into the fixed gap.

[0045] The extrusion protrusions 43 can be multiple parallel and equidistant ones, and the extrusion protrusions 43 are arranged along the direction perpendicular to the axis of the extrusion block 41.

[0046] Specifically, the axis of the extrusion block 41 is parallel to the moving direction of the extrusion block 41. The moving direction of the extrusion block 41 is perpendicular to the horizontal axis of the second fixed plate 32. The extrusion protrusions 43 are vertical along the direction perpendicular to the axis of the extrusion block 41, and the extrusion protrusions 43 are horizontally arranged on the top of the extrusion block 41. The length of the extrusion protrusions 43 can be equal to the width of the top surface of the extrusion block 41, so the extrusion protrusions 43 are parallel to the second fixed plate 32, which is convenient for abutting the extrusion protrusions 43 against the bottom of the second fixed plate 32.

[0047] See Figure 5 As shown in, the fixed abutting part 412 can be inclined upward along the direction from one end far from the portable block 42 to the other end, and a slope 321 matching the fixed abutting part 412 is provided at the bottom of the second fixed plate 32.

[0048] Specifically, when the fixed abutting portion 412 is inclined, the extrusion block 41 may include a first sub-block and a second sub-block disposed above the first sub-block. The ceiling abutting portion 411 is disposed at the bottom of the first sub-block, and the fixed abutting portion 412 is disposed at the top of the second sub-block. The first sub-block is a rectangular block, and the second sub-block is a triangular prism block. The bottom surface, top surface, and the side surface away from the first fixing plate 31 of the second sub-block are all rectangles, and the other two side surfaces of the second sub-block are both triangles, that is, the extrusion block 41 is a wedge-shaped block. The second sub-block may be integrally formed with the first sub-block. The second sub-block may also be detachably connected to the first sub-block. For example, a clamping portion is provided at the bottom of the second sub-block, and a clamping groove is provided at the top of the first sub-block. When the clamping portion is clamped in the clamping groove, the second sub-block is connected to the first sub-block. The second sub-block and the first sub-block are connected to form a wedge-shaped block, and the ceiling abutting portion 411 is parallel to the top of the ceiling plate 1, which is convenient for pushing the first sub-block along the ceiling plate 1.

[0049] Specifically, the fixed abutting portion 412 is inclined upward along the direction from one end away from the portable block 42 to the other end. At this time, the moving direction of the extrusion block 41 is parallel to the axis of the second fixing plate 32, so that the portable block 42 is the farthest from the first fixing plate 31. Then, at this time, the fixed abutting portion 412 is inclined upward along the direction from one end close to the first fixing plate 31 to the other end away from the first fixing plate 31, and the inclined surface 321 is inclined upward along the direction from one end close to the first fixing plate 31 to the other end away from the first fixing plate 31, so that the inclined surface 321 can match the fixed abutting portion 412, and the distance between the top and bottom of the first sub-block remains constant. Push the plug-in fixing member 4 in the direction close to the first fixing plate 31. From one end of the plug-in fixing member 4 close to the first fixing plate 31 to the other end away from the first fixing plate 31, the distance between the fixed abutting portion 412 and the ceiling abutting portion 411 gradually increases. Thus, by pushing the extrusion block 41, when the ceiling abutting portion 411 abuts against the top of the ceiling plate 1, the fixed abutting portion 412 can abut against the bottom of the second fixing plate 32.

[0050] Specifically, in the cross-section of the extrusion block 41 generated by the vertical cutting extrusion block 41, the angle between the hypotenuse and the bottom edge of the cross-section of the extrusion block 41 can be 15 to 75 degrees. When there is an inclined surface 321 on the second fixing plate 32 that matches the fixed abutting portion 412 and the distance between the lowest point of the inclined surface 321 and the top of the ceiling board 1 is relatively large, during the process of pushing the extrusion block 41 from the projection position of the end of the second fixing plate 32 away from the first fixing plate 31 to the side end where the ceiling board 1 abuts against the first limiting plate 23, if the highest position of the fixed abutting portion 412 is inside the fixed gap, the side end of the ceiling abutting portion 411 close to the first fixing plate 31 abuts against the side end where the ceiling board 1 abuts against the first limiting plate 23 and the fixed abutting portion 412 never abuts against the bottom of the second fixing plate 32, if the highest position of the fixed abutting portion 412 is outside the fixed gap, the side end of the ceiling abutting portion 411 close to the first fixing plate 31 abuts against the side end where the ceiling board 1 abuts against the first limiting plate 23 and the fixed abutting portion 412 never abuts against the bottom of the second fixing plate 32, then the function of the top of the plug-in fixing member 4 abutting against the bottom of the second fixing plate 32 and the bottom abutting against the top of the ceiling board 1 cannot be completed. Therefore, it is necessary to push the extrusion block 41 from the top of the ceiling board 1 to the top of the first connecting plate 24 so that the fixed abutting portion 412 can abut against the bottom of the second fixing plate 32. Therefore, it is necessary to keep the top of the ceiling board 1 and the top of the first connecting plate 24 flush to facilitate the movement of the ceiling abutting portion 411 from the ceiling board 1 to the top of the first connecting plate 24. A second fillet can be provided at the connection between the first limiting plate 23 and the first connecting plate 24 to facilitate the movement of the extrusion block 41 from the top of the ceiling board 1 to the top of the first connecting plate 24.

[0051] When there is an inclined surface 321 that matches the fixed abutting portion 412 at the bottom of the second fixing plate 32, the movement direction of the extrusion block 41 is parallel to the horizontal axis of the second fixing plate 32. Multiple extrusion protrusions 43 for increasing the extrusion force between the second fixing plate 32 and the fixed abutting portion 412 can be provided on the fixed abutting portion 412, which can improve the stability when the plug-in fixing member 4 is inserted into the fixed gap.

[0052] An installation method of an assembled ceiling edge closing device and its installation method includes the following steps:

[0053] S1: The edge closing fixing member 5 fixedly connects one end of the edge closing member 2 to the wall;

[0054] S2: Lap the bottom of one end of the ceiling board 1 on the top of the other end of the edge closing member 2;

[0055] S3: Fix one end of the gap forming member 3 to the edge closing member 2, and a fixed gap is formed between the other end of the gap forming member 3 and the top of the ceiling board 1;

[0056] S4: Insert the plug-in fixing member 4 into the fixing gap, so that the bottom of the plug-in fixing member 4 presses the ceiling board 1 to fix the ceiling board 1.

[0057] Specifically, draw a snap line at the first preset height on the wall surface, and connect the two ends of the edge-sealing fixing member 5 to the wall surface at the snap line position and the edge-sealing member 2 respectively, so as to fix one end of the edge-sealing member 2 at the first preset height. Then, install the ceiling in sequence on the edge-sealing member 2. When installing the first ceiling board 1 and the last ceiling board 1 in the ceiling, the edge of the ceiling board 1 needs to be trimmed. Therefore, in this application, the ceiling board 1 at the end of the ceiling can be both the first board installed in the ceiling and the last board installed in the ceiling. Lap the bottom of one end of the ceiling board 1 on the top of the other end of the edge-sealing member 2, which realizes the edge trimming of the ceiling board 1 by the edge-sealing member 2. After the bottom of one end of the ceiling board 1 is lapped on the top of the other end of the edge-sealing member 2, fix one end of the gap-forming member 3 to the edge-sealing member 2, and form a fixing gap between the other end of the gap-forming member 3 and the top of the ceiling board 1. Insert the plug-in fixing member 4 into the fixing gap, so that the top of the plug-in fixing member 4 abuts against the gap-forming member 3 and the bottom abuts against the ceiling board 1. When the ceiling board 1 moves upward under an external impact, the ceiling board 1 pushes the plug-in fixing member 4, the plug-in fixing member 4 pushes the gap-forming member 3, and the gap-forming member 3 pushes the edge-sealing member 2. Since the edge-sealing fixing member 5 fixedly connects the edge-sealing member 2 to the wall surface, the edge-sealing member 2 cannot move. Since the gap-forming member 3 is fixedly connected to the edge-sealing member, the gap-forming member 3 cannot move. Since the top of the plug-in fixing member 4 abuts against the gap-forming member 3, the plug-in fixing member 4 cannot move upward. Since the bottom of the plug-in fixing member 4 abuts against the ceiling board 1, the plug-in fixing member 4 can stop the ceiling board 1, so that the ceiling board 1 cannot move, which can make the ceiling closely connected to the wall surface, and the ceiling board 1 will not shake. The installation method is simple, which improves the overall quality of ceiling installation.

[0058] The content described above can be implemented alone or in various combinations, and these variant methods are all within the protection scope of the present invention.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled ceiling edge trimming device, characterized in that: It includes a trimming member (2), a gap forming member (3), a plug-in fixing member (4), a trimming fixing member (5) for fixedly connecting one end of the trimming member (2) to the wall surface, and a ceiling board (1) located at the end of the suspension ceiling. One end of the bottom of the ceiling board (1) overlaps the top of the other end of the trimming member (2); one end of the gap forming member (3) is fixedly connected to the trimming member (2), and the other end forms a fixed gap with the top of the ceiling board (1). The plug-in fixing member (4) is plugged into the fixed gap, so that the top of the plug-in fixing member (4) abuts against the gap forming member (3) and the bottom abuts against the ceiling board (1) to fix the ceiling board (1); the trimming member (2) includes a mounting plate (21) and a support structure for supporting the ceiling board (1). A plurality of mounting holes are provided on the mounting plate (21). One end of the trimming fixing member (5) passes through the mounting hole and is fixedly connected to the wall surface. The gap forming member (3) includes a first fixing plate (31) with one side fixedly connected to the side of the mounting plate (21) away from the wall surface, and a second fixing plate (32) for forming a fixed gap with the top of the ceiling board (1); the plug-in fixing member (4) includes a pressing block (41). The pressing block (41) includes a ceiling abutting portion (411) provided at the bottom for abutting against the ceiling board (1) and a fixed abutting portion (412) provided at the top for abutting against the bottom of the second fixing plate (32).

2. The prefabricated ceiling edge trimming device according to claim 1, characterized in that: The support structure includes a support plate (22) for supporting the ceiling board (1), a first limiting plate (23) connected to the support plate (22) for limiting the ceiling board (1), and a first connecting plate (24) with two ends respectively connected to the first limiting plate (23) and the mounting plate (21).

3. The prefabricated ceiling edge trimming device according to claim 2, characterized in that: The trimming member (2) further includes a second limiting plate (25) with one end connected to the top of the mounting plate (21), and a slot (28) formed by the first connecting plate (24), the mounting plate (21), and the second limiting plate (25). The first fixing plate (31) is plugged into the slot (28).

4. The prefabricated ceiling edge closing device according to claim 3, characterized in that: The trimming member (2) further includes a third limiting plate (27) with one end connected to the top of the first connecting plate (24), a fourth limiting plate (26) with one end connected to the other end of the second limiting plate (25), and a limiting through hole provided between the other ends of the third limiting plate (27) and the fourth limiting plate (26). The gap forming member (3) further includes a second connecting plate (33) connected to the first fixing plate (31) and a third connecting plate (34) with one end connected to one side end of the second connecting plate (33) and the other end passing through the limiting through hole and connected to the second fixing plate (32). The second connecting plate (33) abuts against the side of the mounting plate (21) away from the wall surface.

5. The prefabricated ceiling edge trimming device according to claim 1, wherein: The plug-in fixing member (4) further includes a portable block (42) protruding from one side surface of the pressing block (41) and having a cross-sectional area smaller than that of the pressing block (41).

6. The prefabricated ceiling edge closing device according to claim 5, characterized in that: The fixed abutting portion (412) is arranged to incline upward along the direction from one end away from the portable block (42) to the other end, and a plurality of extrusion protrusions (43) for increasing the extrusion force between the second fixing plate (32) and the fixed abutting portion (412) are provided on the fixed abutting portion (412).

7. The prefabricated ceiling edge trimming device according to claim 5, characterized in that: The fixed abutting portion (412) is arranged to incline upward along the direction from one end away from the portable block (42) to the other end, and an inclined surface (321) matching the fixed abutting portion (412) is provided at the bottom of the second fixing plate (32).

8. The installation method of an assembled ceiling edge trimming device according to any one of claims 1 to 7, characterized in that, It includes the following steps: S1: The edge closing fixing member (5) fixedly connects one end of the edge closing member (2) to the wall surface; S2: One end of the bottom of the ceiling board (1) is lapped on the top of the other end of the edge closing member (2); S3: One end of the gap forming member (3) is fixedly connected to the edge closing member (2), and a fixed gap is formed between the other end of the gap forming member (3) and the top of the ceiling board (1); S4: The plug-in fixing member (4) is plugged into the fixed gap, so that the top of the plug-in fixing member (4) abuts against the gap forming member (3) and the bottom abuts against the ceiling board (1) to fix the ceiling board (1).

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