CN112064871B - Light steel keel gypsum board corner cracking-proof ceiling structure and construction process thereof - Google Patents

Abstract

The utility model belongs to the technical field of the decoration and finishing engineering and specifically relates to a furred ceiling structure is prevented ftractureing by light gauge steel gypsum board corner and construction process thereof is related to, it includes the main joist, be connected with the main joist gallows between main joist and roof board, be provided with a plurality of rows of secondary joist perpendicularly in main joist below, be connected with the limit fossil fragments of rigid coupling on the shingle at the one end of secondary joist, be connected with down stull fossil fragments at the other end of secondary joist, be provided with the last stull fossil fragments of rigid coupling on the roof board directly over the stull fossil fragments down, there is the gypsum board of level setting at the bottom rigid coupling of limit fossil fragments and lower stull fossil fragments, the gypsum board of level setting is the L type that an organic whole cover cut formed at furred ceiling corner, it has vertical gypsum board to go back the rigid coupling on the lateral wall of stull fossil fragments and last stull down. This application has the effect that effectively solve furred ceiling corner crack problem appear.

Description

Light steel keel gypsum board corner cracking-proof ceiling structure and construction process thereof

Technical Field

The application relates to the field of decoration and finishing engineering, in particular to a light steel keel gypsum board corner cracking-proof ceiling structure and a construction process thereof.

Background

At present, home decoration suspended ceilings are common links in home decoration, and the suspended ceilings are classified differently according to different materials of decorative boards; the ceiling decoration material is the main basis of distinguishing the ceiling name, and mainly has: light steel keel gypsum board suspended ceiling, mineral wool board suspended ceiling and the like; the decorative board plays a very important role in the whole indoor decoration, and can be used for properly decorating the top surface of a room, thereby not only beautifying the indoor environment, but also creating a colorful indoor space artistic image.

During the installation of the gypsum boards, two gypsum boards are usually spliced at the corners of the suspended ceiling, and the splicing mode is easy to construct and widely applied to suspended ceiling construction.

In view of the above-mentioned related technologies, the inventor believes that the defects that the later-stage decoration material expands with heat and contracts with cold and cracks occur exist.

Disclosure of Invention

In order to solve the problem that cracks appear at the ceiling corner, the application provides a light gauge steel gypsum board corner anti-cracking ceiling structure and construction process thereof.

First aspect, the application provides a light gauge steel gypsum board corner suspended ceiling structure of preventing ftractureing adopts following technical scheme:

the utility model provides a light gauge steel gypsum board corner anti-cracking suspended ceiling structure, including the main joist, be connected with the main joist gallows between main joist and shingle, be provided with a plurality of rows of secondary joist perpendicularly below the main joist, be connected with the limit fossil fragments of rigid coupling on the shingle nail in the one end of secondary joist, be connected with down stull fossil fragments at the other end of secondary joist, be provided with the last stull fossil fragments of rigid coupling on the shingle nail directly over the stull fossil fragments down, the gypsum board that has the level to set up in the bottom rigid coupling of limit fossil fragments and lower stull fossil fragments, the gypsum board that the level set up is integrative L type that overlaps and cuts and form in the furred ceiling corner, it has vertical gypsum board to go back the rigid coupling on the lateral wall of lower stull fossil fragments and last stull fossil fragments.

Through adopting above-mentioned technical scheme, keel frame is constituteed to main joist, secondary joist, limit fossil fragments, lower stull fossil fragments, last stull fossil fragments, and on the gypsum board was fixed in keel frame, set up integrative L type gypsum board that cuts and form at the position of furred ceiling corner, effectively solved the problem of corner department gypsum board fracture.

Preferably, the main keel support comprises a hanging rod and a hanging buckle, an expansion bolt used for being embedded and fixed on the roof slab is arranged at one end of the hanging rod, an external thread is arranged at the other end of the hanging rod and penetrates through the top wall of the hanging buckle, two nuts are screwed at one end of the hanging rod provided with the external thread, and the two nuts are respectively positioned at two sides of the top wall of the hanging buckle.

Through adopting above-mentioned technical scheme, the jib is used for connecting roof board and suspension clasp, and the suspension clasp is used for fixed main joist, and the space height of suspension clasp is confirmed to two nuts for the fixed position of main joist, main joist gallows overall structure is simple, and is easy and simple to handle.

Preferably, the main keel support comprises a hanging rod and a hanging buckle, an expansion bolt used for being embedded and fixed on a roof slab is arranged at one end of the hanging rod, a plurality of rows of first convex blocks are arranged on the circumferential surface of the hanging rod along the axis direction of the hanging rod, a gap matched with the first convex blocks in size is arranged between every two adjacent rows of the first convex blocks, a sleeve is sleeved on the hanging rod, a plurality of rows of second convex blocks are arranged on the inner wall of the sleeve along the axis direction of the sleeve, a gap matched with the first convex blocks in size is arranged between every two adjacent rows of the second convex blocks, the second convex blocks are identical in shape and size with the first convex blocks, a gap matched with the second convex blocks is arranged between every two adjacent layers of the first convex blocks along the length of the axis direction of the hanging rod, and a gap matched with the first convex blocks is arranged between every two adjacent sides of the second convex blocks along the axis direction of the sleeve.

Through adopting above-mentioned technical scheme, operating personnel rotates the sleeve, makes first lug and second lug dislocation, can make the sleeve remove along the axis direction of jib, after removing appointed position, rotates the sleeve once more, makes first lug and second lug counterpoint from top to bottom to it is spacing jointly through first lug and second lug, make the sleeve can't follow jib axial displacement, thereby make the spatial position of suspension clasp fixed.

Preferably, the first projection is provided with a limit groove, and the second projection is elastically supported with a ball for being embedded into the limit groove.

Through adopting above-mentioned technical scheme, counterpoint the back from top to bottom when first lug and second lug, ball elastic support is in spacing inslot, and the ball has certain spacing effect to first lug and second lug relative displacement, has promoted telescopic stability.

Preferably, the second lug is provided with an accommodating cylinder in an embedded manner, one end of the accommodating cylinder, which is close to the limiting groove, is provided with an opening which is contracted towards the center from the periphery, the ball is arranged in the accommodating cylinder, the diameter of the ball is larger than that of the opening, and a first spring is elastically supported between the ball and the inner wall of the accommodating cylinder, which is far away from the opening of the ball.

Through adopting above-mentioned technical scheme, the ball is restricted in holding a section of thick bamboo, and under the elastic support effect of first spring, the ball can be retracted and hold a section of thick bamboo in, treats that the ball corresponds the spacing groove, and the ball can imbed the spacing inslot.

Preferably, set up on the telescopic lateral wall and be used for restricting sleeve pivoted spacing subassembly, be provided with the spout along the axis direction of self on the jib lateral wall, spacing subassembly includes the spacing section of thick bamboo of rigid coupling on the sleeve lateral wall, wears to be equipped with the activity in spacing section of thick bamboo and inlays the gag lever post of locating the spout, be provided with the limiting plate with the gag lever post rigid coupling in spacing section of thick bamboo, be provided with between limiting plate and spacing section of thick bamboo inner wall and be used for ordering about the elastic component that the limiting plate removed to being close to the spout direction.

Through adopting above-mentioned technical scheme, counterpoint the back from top to bottom when first lug and second lug, the gag lever post orders about the effect at the elasticity of elastic component down, in the automatic embedding spout for the sleeve can't continue to rotate in the horizontal direction, has improved telescopic stability.

Preferably, the elastic member is a second spring, and the second spring is sleeved on the limiting rod.

Through adopting above-mentioned technical scheme, second spring simple structure, convenient to use.

Preferably, the end part of the limiting rod, far away from the sliding groove, is hinged with a clamping ring, a clamping groove for clamping the clamping ring in a movable clamping manner is formed in the side wall of the limiting rod, and when the clamping groove is clamped by the clamping ring, the limiting rod exits from the sliding groove and is fixed in position.

Through adopting above-mentioned technical scheme, after the gag lever post withdrawed from the spout, the snap ring can overturn, makes the snap ring card go into the draw-in groove, and then limits the gag lever post and removes to make the comparatively convenient rotation sleeve of operating personnel, and not limited influence of gag lever post.

The second aspect, this application provides a light gauge steel gypsum board corner prevents construction process of furred ceiling structure that ftractures, adopts following technical scheme:

s1, measuring and paying off;

s2, installing side keels and upper cross keel;

s3, fixing a suspender;

s4, mounting a main keel;

s5, installing a secondary keel;

s6, mounting a gypsum board;

and S7, brushing antirust paint and filling gypsum powder.

By adopting the technical scheme: constructors can carry out convenient construction operation so as to achieve good construction effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the gypsum board is fixed on the keel frame, and the L-shaped gypsum board which is integrally cut is arranged at the corner of the suspended ceiling, so that the problem of cracking of the gypsum board at the corner is effectively solved;

2. by arranging the first lug, the second lug and the sleeve, an operator rotates the sleeve to enable the first lug and the second lug to be staggered, namely the sleeve can move along the axis direction of the suspender, and after the sleeve is moved to a specified position, the sleeve is rotated again to enable the first lug and the second lug to be aligned up and down, so that the sleeve cannot move along the axial direction of the suspender through common limiting of the first lug and the second lug, and the spatial position of the suspension buckle is fixed;

3. through setting up spacing subassembly and spout, counterpoint the back from top to bottom when first lug and second lug, the gag lever post orders about the effect at the elasticity of elastic component down, imbeds in the spout automatically for the sleeve can't continue to rotate on the horizontal direction, has improved telescopic stability.

Drawings

Fig. 1 is a schematic view of a gypsum board at a corner in a light steel keel gypsum board corner crack prevention ceiling structure according to embodiment 1 of the present application;

fig. 2 is a cross-sectional view of a light gauge steel plasterboard corner crack-resistant ceiling structure of example 1 of the present application;

fig. 3 is a cross-sectional view of the main joist, the secondary joist, the side joist, the lower cross-brace joist, the upper cross-brace joist and the gypsum board of the embodiment 1 of the present application;

figure 4 is a schematic view of the embodiment 1 of the present application showing the main keel hanger and the hanging piece;

figure 5 is a schematic structural view of a main runner hanger of the embodiment 2 of the present application;

FIG. 6 is an exploded view of example 2 of the present application showing the fit of the boom and the socket;

fig. 7 is a cross-sectional view of embodiment 2 of the present application showing a mating relationship between a first bump and a second bump;

FIG. 8 is a sectional view of the embodiment 2 of the present application for showing the internal structure of the position limiting assembly;

FIG. 9 is a flow diagram of a construction process of the crack-resistant suspended ceiling structure of the light steel keel gypsum board corner.

Description of reference numerals: 1. a main keel; 10. a boom; 100. a first bump; 1000. a limiting groove; 101. a chute; 11. hanging buckles; 12. a nut; 13. a sleeve; 130. a first ring plate; 131. a second ring plate; 132. a second bump; 1320. a receiving cylinder; 1321. a first spring; 1322. a ball bearing; 133. anti-skid lines; 14. a limiting component; 140. a limiting cylinder; 141. a limiting rod; 1410. an ear plate; 1411. a rotating shaft; 1412. a card slot; 142. a limiting plate; 143. a second spring; 144. a snap ring; 2. a secondary keel; 20. hanging the sheet; 200. hanging edges; 201. clamping edges; 3. a side keel; 4. a lower cross brace keel; 5. an upper cross brace keel; 6. a gypsum board.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses light gauge steel gypsum board corner prevents furred ceiling structure that ftractures.

Example 1

Referring to fig. 1 and 2, the light gauge steel gypsum board corner cracking-proof ceiling structure comprises a main keel 1, wherein the main keel 1 is horizontally arranged below a roof slab, the main keel 1 is made of C60 plastic-coated light gauge steel, a main keel hanger for hanging the main keel 1 is connected between the main keel 1 and the roof slab, and the main keel hanger is a common main keel hanger on the market.

Referring to fig. 2 and 3, the main joist hanger includes a hanger rod 10 and a hanger 11 disposed below the hanger rod 10 for holding the main joist 1, an expansion bolt for embedding a roof slab is disposed at the top end of the hanger rod 10, an external thread is disposed at the bottom end of the hanger rod 10, the hanger rod 10 penetrates through the top wall of the hanger 11, nuts 12 are respectively screwed on the upper and lower sides of the top wall of the hanger rod 10 at the hanger 11, the hanger 11 is fixed on the hanger rod 10 by the upper and lower nuts 12, and the horizontal height of the hanger 11 can be changed by adjusting the horizontal heights of the upper and lower nuts 12.

Referring to fig. 3 and 4, a plurality of secondary keels 2 perpendicular to the extending direction of the main keel 1 are arranged below the main keel 1, the secondary keels 2 are parallel and uniformly arranged, the material of the secondary keels 2 is the same as that of the main keel 1, the secondary keels 2 are C-shaped keels, the openings of the secondary keels are upward, two side walls of the secondary keels 2 are turned inwards to form convex edges, a hanging piece 20 is connected between the main keel 1 and the secondary keels 2, the hanging piece 20 can adopt a common hanging piece 20 in the market, and the hanging piece 20 comprises a hanging edge 200 which is erected on the main keel 1 and a clamping edge 201 which is clamped on the convex edges of the secondary keels 2, so that the secondary keels 2 can be effectively fixed; the wall panel is fixedly connected with an edge keel 3 parallel to the main keel 1, the edge keel 3 is a C-shaped light steel keel, a C-shaped opening of the edge keel 3 faces to one side away from the wall surface, and the end part of the secondary keel 2 is vertically inserted into the C-shaped opening of the edge keel 3; a lower cross brace keel 4 is arranged at one end, far away from the side keel 3, of the secondary keel 2, the lower cross brace keel 4 is parallel to the side keel 2 and is positioned at the same horizontal height, the lower cross brace keel 4 is a C-shaped light steel keel, a C-shaped opening of the lower cross brace keel 4 faces to one side close to the side keel 3, and the end part of the secondary keel 2 is embedded in the C-shaped opening of the lower cross brace keel 4; be provided with stull fossil fragments 5 directly over stull fossil fragments 4 down, go up stull fossil fragments 5 and be fixed in the shingle on, go up stull fossil fragments 5 and adopt C type light gauge steel, go up the C type opening of stull fossil fragments 5 down, go up stull fossil fragments 5 and keep away from the lateral wall of shingle and be in same vertical face with the lateral wall that stull fossil fragments 4 kept away from the shingle down.

Referring to fig. 1 and 2 again, a plurality of gypsum boards 6 are spliced on the bottom walls of the side keels 3 and the bottom walls of the lower cross brace keels 4 along the length direction of the lower cross brace keels 4, the gypsum boards 6 are fixed on the side keels 3 and the lower cross brace keels 4 through automatic screws, the gypsum boards 6 are L-shaped at the corners of the whole keel framework, a sleeve cutting mode is adopted, namely a square corner is cut off from the whole gypsum board, the L-shaped gypsum boards 6 are perfectly attached to the corners, and only one gypsum board is needed; and gypsum boards 6 which are vertically arranged are fixed on the side walls of the lower cross brace keel 4 and the upper cross brace keel 5 through self-tapping screws.

The implementation principle of the embodiment 1 is as follows: the gypsum board 6 adopts the cover to cut the preparation to install in the corner, make the gypsum board 6 of corner not have the seam, thereby effectively solved because of later stage finishing material expend with heat and contract with cold and lead to the problem that the crack appears.

Example 2

Referring to fig. 5 and 6, the present embodiment is different from embodiment 1 in that multiple layers of first protrusions 100 are uniformly arranged on the circumferential surface of the suspension rod 10 along the length direction of the suspension rod 10, each layer of first protrusions 100 includes three first protrusions 100 uniformly surrounding the axial core of the suspension rod 10, so that three rows of first protrusions 100 are formed on the suspension rod 10 along the axial direction of the suspension rod 10, and a gap adapted to the size of the first protrusion 100 is left between two adjacent layers of first protrusions 100; a sleeve 13 is sleeved on the suspension rod 10, the sleeve 13 is a cylindrical structure with openings at two ends, a first annular plate 130 and a second annular plate 131 are coaxially and fixedly connected to one side of the sleeve 13 close to the suspension buckle 11, and the first annular plate 130 and the second annular plate 131 are respectively positioned at the upper side and the lower side of the top wall of the suspension buckle, so that the sleeve 13 is rotatably connected with the suspension buckle 11; a plurality of layers of second bumps 132 are uniformly and fixedly connected to the inner circumferential surface of the sleeve 13 along the axial direction of the sleeve 13, each layer of second bumps 132 includes three second bumps 132 uniformly arranged around the axial core of the sleeve 13, so that three rows of second bumps 132 are formed in the sleeve 13, the second bumps 132 are the same as the first bumps 132 in shape and size, and a gap matched with the second bumps 132 is reserved between the second bumps 132 on two adjacent sides.

Referring to fig. 6 and 7, an arc-shaped limiting groove 1000 is disposed on a side of the first protrusion 100 close to the suspension buckle 10, a receiving barrel 1320 is embedded on a side of the second protrusion 132 close to the first protrusion 100, an opening that is shrunk from the periphery to the center is disposed on a side of the receiving barrel 1320 close to the limiting groove 1000, a first spring 1321 is elastically supported in the receiving barrel 1320, a ball 1322 is disposed on an end of the first spring 1321 close to the opening, the ball 1322 is limited in the receiving barrel 1320 by the opening, such that the ball 1322 can move toward a side close to the first spring 1321 when contacting the first protrusion 100, when the ball 1322 is aligned with the limiting groove 1000, under the elastic driving action of the first spring 1321, the ball 1322 is embedded in the limiting groove 1000, such that a certain resistance is formed between the second protrusion 132 and the first protrusion 100, so that an operator can know that the second protrusion 132 and the first protrusion 100 are aligned up and down, such that the first protrusion 100 and the second protrusion 132 are blocked mutually, the sleeve 13 is fixed on the hanger bar 10, and in order to facilitate the up-and-down sliding of the sleeve 13, anti-slip threads are provided on the outer wall of the sleeve 13.

Referring to fig. 5 and 8, in order to improve the stability of the sleeve 13, a limiting component 14 is disposed on a sidewall of the sleeve 13, the limiting component 14 includes a limiting cylinder 140, the limiting cylinder 140 is a cylinder structure with an open end, the open end of the limiting cylinder 140 is fixedly connected to the sidewall of the sleeve 13, an axial direction of the limiting cylinder 140 is perpendicular to an axial direction of the sleeve 13, a limiting rod 141 coaxially penetrates through the limiting cylinder 140, a sliding groove 101 adapted to the limiting rod 141 is disposed on a circumferential surface of the suspension rod 10 along the axial direction of the suspension rod 10, an end of the limiting rod 141 is movably embedded in the sliding groove 101, a limiting plate 142 coaxially and fixedly connected to the limiting rod 141 is disposed in the limiting cylinder 140, a second spring 143 is further sleeved on the limiting rod 141, the second spring 143 is elastically supported between the limiting plate 142 and an inner wall of the limiting cylinder 140, the second spring 143 elastically drives the limiting plate 142 to move toward the sleeve 13, keep away from the tip rigid coupling of spout 101 at gag lever post 141 and have two otic placodes 1410, rotate between two otic placodes 1410 and be connected with pivot 1411, the rigid coupling has snap ring 144 on pivot 1411, offer the draw-in groove 1412 that supplies the activity card of snap ring 144 to establish on gag lever post 141's lateral wall, when snap ring 144 joint in draw-in groove 1412, under the limiting displacement of snap ring 144, gag lever post 141 is in the spout 101 outside all the time for the operator can be comparatively convenient swivel sleeve 13.

The implementation principle of the embodiment 2 is as follows: when the height of the suspension buckle 11 needs to be adjusted, an operator rotates the sleeve 13 to make the second protruding block 132 and the first protruding block 131 dislocate up and down, and then the operator can move the sleeve 13 up and down more conveniently, after the position of the suspension buckle 11 is determined, the operator rotates the sleeve 13 to make the balls 1322 slide and be embedded in the limiting groove 1000, and simultaneously takes the snap ring 144 out of the clamping groove 1412, and under the elastic driving effect of the second spring 143, the limiting rod 141 is embedded in the sliding groove 101, so that the rotation of the sleeve 13 is further limited.

The embodiment of the application further discloses a construction process of the light steel keel gypsum board corner anti-cracking suspended ceiling structure. Referring to fig. 9, the construction process of the light steel keel gypsum board corner anti-cracking suspended ceiling structure comprises the following steps:

s1, measuring and setting out, namely measuring an integral horizontal vertical line in a room by using a laser horizontal instrument, and popping up a ceiling elevation control line along a wall surface by using an ink line;

s2, installing the side keel 3 and the upper cross-bracing keel 5;

s3, fixing the hanger rod 10, vertically rooting an expansion bolt at the top end of the hanger rod 10 on a roof slab, and adjusting the position of the suspension clasp 11;

s4, installing the main keel 1, and installing the main keel 1 on the suspension buckle 11;

s5, installing the secondary keel 2, and fixing the secondary keel 2 and the main keel 1 together by using the hanging sheet 20;

s6, installing a gypsum board 6, and fixing the gypsum board 6 on the whole keel frame by using automatic screws;

s7, brushing anti-rust paint and filling gypsum powder, coating the anti-rust paint on the self-tapping screw, and filling the gypsum powder at the self-tapping screw and the gypsum board joint.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a light gauge steel gypsum board corner prevents furred ceiling structure that ftractures, its characterized in that: the suspended ceiling comprises a main keel (1), a main keel hanger is connected between the main keel (1) and a roof slab, a plurality of rows of secondary keels (2) are vertically arranged below the main keel (1), one ends of the secondary keels (2) are connected with side keels (3) fixedly connected to a wall panel, the other ends of the secondary keels (2) are connected with lower cross brace keels (4), upper cross brace keels (5) fixedly connected to the roof slab are arranged right above the lower cross brace keels (4), horizontally arranged gypsum boards (6) are fixedly connected to the bottoms of the side keels (3) and the lower cross brace keels (4), the horizontally arranged gypsum boards (6) are integrally sleeved and cut at corners of the suspended ceiling to form an L shape, and vertical gypsum boards (6) are fixedly connected to the side walls of the lower cross brace keels (4) and the upper cross brace keels (5); the main keel (1) support comprises a hanger rod (10) and a suspension buckle (11), one end of the hanger rod (10) is provided with an expansion bolt for being embedded and fixed on a roof slab, a plurality of rows of first lugs (100) are arranged on the circumferential surface of the hanger rod (10) along the axial direction of the hanger rod (10), a gap matched with the first lugs (100) in size is arranged between the first lugs (100) in two adjacent rows, a sleeve (13) is sleeved on the hanger rod (10), a plurality of rows of second lugs (132) are arranged on the inner wall of the sleeve (13) along the axial direction of the sleeve (13), a gap matched with the first lugs (100) in size is arranged between the second lugs (132) in two adjacent rows, the second lugs (132) are identical in shape and size with the first lugs (100), a gap matched with the second lugs (132) is arranged between the first lugs (100) in two adjacent layers along the axial length of the hanger rod (10), gaps matched with the first convex blocks (100) are arranged between the second convex blocks (132) on two adjacent sides along the axial direction of the sleeve (13).

2. The light gauge steel gypsum board (6) corner crack-resistant suspended ceiling structure of claim 1, characterized in that: the main keel (1) support comprises a hanging rod (10) and a hanging buckle (11), an expansion bolt used for being embedded and fixed on a roof slab is arranged at one end of the hanging rod (10), external threads are arranged at the other end of the hanging rod (10) and penetrate through the top wall of the hanging buckle (11), two nuts (12) are connected to one end, provided with the external threads, of the hanging rod (10) in a threaded mode, and the two nuts (12) are located on two sides of the top wall of the hanging buckle (11) respectively.

3. The light gauge steel gypsum board corner anti-cracking suspended ceiling structure of claim 1, wherein: the first lug (100) is provided with a limit groove (1000), and the second lug (132) is elastically supported with a ball (1322) embedded in the limit groove (1000).

4. The light gauge steel gypsum board (6) corner crack-resistant suspended ceiling structure of claim 3, characterized in that: an accommodating cylinder (1320) is embedded in the second bump (132), an opening which is contracted from the periphery to the center is formed in one end, close to the limiting groove (1000), of the accommodating cylinder (1320), a ball (1322) is arranged in the accommodating cylinder (1320), the diameter of the ball (1322) is larger than that of the opening, and a first spring (1321) is elastically supported between the ball (1322) and the inner wall, far away from the opening, of the accommodating cylinder (1320).

5. The light gauge steel gypsum board (6) corner crack-resistant suspended ceiling structure of claim 1, characterized in that: set up on the lateral wall of sleeve (13) and be used for restricting sleeve (13) pivoted spacing subassembly (14), be provided with spout (101) along the axis direction of self on jib (10) lateral wall, spacing subassembly (14) include spacing section of thick bamboo (140) of rigid coupling on sleeve (13) lateral wall, wear to be equipped with the activity in spacing section of thick bamboo (140) and inlay gag lever post (141) of locating spout (101), be provided with limiting plate (142) with gag lever post (141) rigid coupling in spacing section of thick bamboo (140), be provided with the elastic component that is used for driving about limiting plate (142) to remove to being close to spout (101) direction between limiting plate (142) and spacing section of thick bamboo (140) inner wall.

6. The light gauge steel gypsum board corner anti-cracking suspended ceiling structure of claim 5, wherein: the elastic piece is a second spring (143), and the second spring (143) is sleeved on the limiting rod (141).

7. The light gauge steel gypsum board corner anti-cracking suspended ceiling structure of claim 5, wherein: the end part, far away from the sliding groove (101), of the limiting rod (141) is hinged with a clamping ring (144), a clamping groove (1412) for movably clamping the clamping ring (144) is formed in the side wall of the limiting rod (141), and when the clamping ring (144) is clamped in the clamping groove (1412), the limiting rod (141) exits from the sliding groove (101) and is fixed in position.

8. The construction process of the light steel keel gypsum board corner cracking-proof ceiling structure as claimed in any one of claims 1-7, is characterized in that: the method comprises the following steps:

s1, measuring and paying off;

s2, installing side keels (3) and upper cross keel (5);

s3, fixing the suspender (10);

s4, mounting a main keel (1);

s5, installing a secondary keel (2);

s6, mounting a gypsum board (6);

and S7, brushing antirust paint and filling gypsum powder.

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