Telescopic connecting structure of ceiling joist

Abstract

The utility model discloses a telescopic connecting structure of a ceiling joist, and relates to the related technical field of building construction. The connecting structure comprises main keels, a connecting strip, auxiliary keels and suspender assemblies, one connecting strip is in lap joint with the two adjacent main keels which are located on the same straight line, the auxiliary keels are clamped to the lower portions of all the main keels arranged side by side, and the suspender assemblies are arranged above the staggered points of the main keels and the auxiliary keels; the suspender assembly comprises a frame, a first screw rod and a second screw rod, the first screw rod and the second screw rod are screwed to the upper portion and the lower portion of the frame in a threaded penetrating mode, and the bottom of the first screw rod downwards penetrates through the top face of the main keel and is fixedly provided with a limiting plate. By arranging the main keel, the auxiliary keel, the connecting strip and the suspender assembly, the problems that extension of the keel part can only be cut and assembled, telescopic connection cannot be achieved, and the height of the suspender part in the ceiling keel cannot be adjusted in a telescopic mode are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building construction, especially relates to a telescopic connecting structure of suspended ceiling joist. BACKGROUND

[0002] Suspended ceiling joist is the ceiling we often see, especially the shaped ceiling, is all made into with the frame of joist, then covers the plasterboard and makes. Joist refers to the main material for light steel, which is used for ceiling. Suspended ceiling joist is mainly divided into the part of suspender connecting the wall top, the part of bearing main joist connecting the bottom of suspender and the part of crosswise interlocking sub-joist below the main joist, but the related suspended ceiling joist still has the following disadvantages in actual use:

[0003] 1. Because the building structure is different, the indoor space layout of building is different, and the size of the wall top is also different, which leads to the need of cutting the joist according to the size of the wall top when carrying out the ceiling, that is, increasing the working hours and wasting the material cost;

[0004] 2. Secondly, according to the building height and actual user demand, the height of the ceiling is also inconsistent, so the height of the suspender part needs to be changed according to the actual situation, but the conventional suspender structure is determined when leaving the factory, and needs to be cut and changed, and if the suspender structure is too long, it also needs to be customized. CONTENT

[0005] The utility model discloses a telescopic connecting structure of suspended ceiling joist, which is characterized by comprising a main joist, a connecting strip, a sub-joist and a suspender assembly.

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] The utility model discloses a telescopic connecting structure of suspended ceiling joist, which is characterized by comprising a main joist, a connecting strip, a sub-joist and a suspender assembly.

[0008] All the sub-joists are connected below all the main joists arranged side by side, and a suspender assembly is arranged above the cross point of each main joist and sub-joist.

[0009] The cross section of the sub-joist is U-shaped, and a plurality of symmetrically distributed clamping grooves are formed on the two side surfaces of the sub-joist, the lower part of the main joist is fixed with an ear plate, and the lower part of the main joist and the ear plate are inserted into the clamping grooves.

[0010] The boom assembly comprises a frame, a screw rod one and a screw rod two, the screw rod one and the screw rod two are screwed through the upper and lower parts of the frame, the bottom of the screw rod one is screwed through the top surface of the main keel and fixed with a limiting plate.

[0011] Further, the main keel is in the shape of a trapezoid, the inside of the main keel is hollow and the bottom surface is in an open structure.

[0012] Further, the inner bottom surface of the auxiliary keel is fixed with equidistantly distributed studs, the limiting plate is fixed with two symmetric connecting rods at the bottom, and the two connecting rods are fixed with a connecting nut at the bottom, the connecting nut is screwed outside the studs.

[0013] Further, the height of the studs is lower than the height of the auxiliary keel, the studs are located in the area between the clamping grooves on the two sides of the auxiliary keel, and the studs are located below the connection between the main keel and the screw rod one.

[0014] Further, the outer periphery of the screw rod one is screwed with a locking nut, the locking nut is located above the main keel and locks the screw rod one and the main keel.

[0015] Further, the part where the strip-shaped groove and the connecting strip coincide is also provided with a boom assembly, in this state, the bottom of the screw rod one passes through the connecting strip, the strip-shaped groove and enters the inner cavity of the main keel in sequence, and the locking nut is locked on the connecting strip; the bottom of the screw rod one in the boom assembly located at the center of the main keel passes through the through hole and enters the inner cavity of the main keel.

[0016] Further, the top of the screw rod two is also fixed with a mounting ear.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model discloses a main keel, auxiliary keel, connecting strip are set up, solved the extension of keel part only cutting assembly, cannot realize telescopic connection's problem, when assembling the keel, the screw rod one in hanger bar assembly is from the bottom of main keel and is passed through the through -hole upwards, and then is screwed into the corresponding frame, at this moment, the main keel is lifted by hanger bar assembly, then according to the width of wall top selects corresponding number of main keel and installs, and then, at this moment, there is a certain gap between the adjacent main keel, and a connecting strip is overlaid on the main keel in the same straight line, and then a new set of hanger bar assembly is used to connect the connecting strip and the main keel, so that the actual wall top width can be selected according to the actual wall top width, and the appropriate main keel and connecting strip can be used, and telescopic connection is realized, and then the main keel and the connecting strip are arranged at equal intervals according to the above mode according to the distance between the clamping grooves on the auxiliary keel, and the telescopic main keel connecting structure is realized, finally, the auxiliary keel is clamped into the main keel from the gap between the two main keels, and various gypsum boards and other structures are finally connected with the bottom surface of the auxiliary keel, and the auxiliary keel does not need telescopic connection, even if the length is insufficient, the clamping groove is aligned with the main keel, and the remaining part can be cut and assembled, and almost no waste is generated, finally, the screw rod one is rotated, and the connecting nut at the bottom is screwed to the stud, and the connection strength with the auxiliary keel is enhanced.

[0019] 2. The utility model discloses a hanger bar assembly, solves the telescopic height of the hanger bar part in the ceiling keel cannot be adjusted, before the installation of hanger bar assembly, first screw down the screw rod one, and connect with the main keel and auxiliary keel, then rotate the corresponding frame or screw rod two, adjust to proper height, then connect the mounting ear at the top of screw rod two with the wall top through anchor bolt and other fasteners, and get proper height. ACCURATE DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment.

[0021] Figure 1 It is a perspective view of a telescopic connecting structure of ceiling keel.

[0022] Figure 2 It is a connection diagram of hanger bar assembly and main keel and auxiliary keel.

[0023] Figure 3 It is a structure diagram of main keel.

[0024] Figure 4 It is a partial structure diagram of auxiliary keel.

[0025] Figure 5 It is a structure diagram of connecting strip.

[0026] Figure 6 It is a sectional view of the connection diagram of hanger bar assembly and main keel and auxiliary keel.

[0027] Figure 7 For Figure 6 structure of A in the formula is enlarged;

[0028] Figure 8 structure of the hanger assembly.

[0029] Reference signs:

[0030] 1, main keel; 101, through hole; 102, strip-shaped groove; 103, ear plate; 2, connecting strip; 3, auxiliary keel; 301, clamping groove; 302, stud; 4, hanger assembly; 401, screw rod one; 4011, limiting plate; 4012, connecting rod; 4013, connecting nut; 4014, locking nut; 402, screw rod two; 4021, mounting ear; 403, frame. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0032] Please refer to Figures 1-8 The utility model discloses a telescopic connecting structure of suspended ceiling keel, including main keel 1, connecting strip 2, auxiliary keel 3 and hanger assembly 4, a connecting strip 2 is overlapped on two adjacent and in same straight line's main keel 1, the equal interval distribution's through hole 101 is set up in the center of main keel 1, and the strip-shaped groove 102 that still sets up is penetrated on the top surface of main keel 1, all through holes 101 are located between strip-shaped grooves 102;

[0033] The main keel 1 is as the main load-bearing connection, and the hanger assembly 4 is hung on the roof of the wall through the center connection, the through hole 101 provided in the center of the main keel 1 is used for the screw rod one 401 in the hanger assembly 4 to pass through, and the strip-shaped groove 102 is convenient for connecting and matching with the corresponding connecting strip 2.

[0034] All main keels 1 arranged side by side are clamped with auxiliary keels 3 below, and the hanger assembly 4 is arranged above the staggered point of each main keel 1 and auxiliary keel 3.

[0035] The auxiliary keel 3 is connected with the main keel 1 below in a staggered manner, and the hanger assembly 4 is installed at the staggered point of the two, so that the structure is more stable.

[0036] The cross section of the auxiliary keel 3 is in a U shape, and a plurality of groups of symmetrical clamping grooves 301 are formed on the two side surfaces of the auxiliary keel 3, the ear plates 103 are fixed to the lower parts of the two sides of the main keel 1, and the lower parts of the main keel 1 and the ear plates 103 are inserted into the clamping grooves 301.

[0037] The auxiliary keel 3 is a conventional U-shaped keel structure, and the auxiliary keel 3 is arranged in a crisscross manner with the main keel 1, and the clamping groove 301 of the auxiliary keel 3 is inserted into the lower part of the main keel 1 and the ear plate 103, so that the auxiliary keel 3 is suspended below the main keel 1, and the auxiliary keel 3 is moved to below the hanger assembly 4, and secondary fastening operation is performed in cooperation with the lock nut 4014 and the like;

[0038] The hanger assembly 4 comprises a frame 403, a screw one 401 and a screw two 402, and the screw one 401 and the screw two 402 are both screwed into the upper and lower parts of the frame 403, and the bottom of the screw one 401 penetrates the top surface of the main keel 1 downward and is fixed with a limiting plate 4011;

[0039] The screw one 401 and the screw two 402 have different divisions, the screw one 401 is used for auxiliary connection of the main keel 1 and the auxiliary keel 3, and the screw two 402 is connected to the wall top, and the screw one 401 and the screw two 402 can change the position height of mutual combination by rotating in the frame 403, so as to change the hanger height according to the actual ceiling requirement.

[0040] The main keel 1 has a trapezoidal cross section, and the inside of the main keel 1 is hollow and the bottom surface is an open structure; both the weight is reduced and the connection with the auxiliary keel 3 is facilitated;

[0041] The inner bottom surface of the auxiliary keel 3 is fixed with equidistantly distributed studs 302, the bottom of the limiting plate 4011 is fixed with two symmetrical connecting rods 4012, and the bottom of the two connecting rods 4012 is jointly fixed with a connecting nut 4013 which is screwed to the outside of the stud 302;

[0042] The height of the stud 302 is lower than the height of the auxiliary keel 3, and the stud 302 is located in the area between the clamping grooves 301 on the two sides of the auxiliary keel 3, and the stud 302 is located below the connection position of the main keel 1 and the screw one 401;

[0043] First, the screw one 401 is penetrated through the through hole 101 (or the strip-shaped groove 102) from below the main keel 1 upward, and then the upper part of the screw one 401 is screwed into the frame 403, when the auxiliary keel 3 is located below the screw one 401, the screw one 401 is rotated, the connecting nut 4013 at the bottom of the screw one 401 is screwed into the outside of the stud 302, and the connection with the auxiliary keel 3 is realized, and at this time the main keel 1 is supported on the limiting plate 4011;

[0044] The outer periphery of the screw one 401 is screwed with a lock nut 4014, and the lock nut 4014 is located above the main keel 1 and locks the screw one 401 and the main keel 1; after the screw one 401 is connected with the auxiliary keel 3, the lock nut 4014 is rotated and moved downward, so as to lock the main keel 1.

[0045] The portion where the strip-shaped groove 102 and the connecting strip 2 coincide is also provided with the hanger assembly 4, and the bottom of the screw rod one 401 passes through the connecting strip 2, the strip-shaped groove 102 and the inner cavity of the main keel 1 in sequence, and the locking nut 4014 is locked on the connecting strip 2; the bottom of the screw rod one 401 in the hanger assembly 4 at the center of the main keel 1 passes through the through hole 101 and enters the inner cavity of the main keel 1;

[0046] The top of the screw rod two 402 is further fixed with a mounting lug 4021; the mounting lug 4021 is provided with a corresponding hole, which is convenient for cooperating with an anchor and other fasteners to be fixed on the wall top.

[0047] The specific working principle of the utility model is as follows: firstly, the screw rod one 401 in the hanger assembly 4 passes through the through hole 101 from the bottom of the main keel 1 upwards and is screwed into the corresponding frame 403, at this time, the main keel 1 is lifted by the hanger assembly 4, and then a corresponding number of main keels 1 are installed according to the width of the wall top; the auxiliary keel 3 is clamped into the main keel 1 from the gap between the two main keels 1, various gypsum boards and other structures are finally connected with the bottom surface of the auxiliary keel 3, the auxiliary keel 3 is crisscrossed with the main keel 1, the clamping groove 301 of the auxiliary keel 3 is aligned with the lower part of the main keel 1 and the lug plate 103 is inserted, so that the auxiliary keel 3 is suspended under the main keel 1, and the auxiliary keel 3 is moved to the hanger assembly 4, the screw rod one 401 is rotated, the connecting nut 4013 at the bottom of the screw rod one 401 is screwed out of the stud 302, the connection with the auxiliary keel 3 is realized, and at this time, the main keel 1 is supported on the limiting plate 4011; then the locking nut 4014 is rotated and moved downwards, so that it locks the main keel 1;

[0048] At this time, there is a certain gap between the adjacent main keels 1, a connecting strip 2 is overlaid on the main keels 1 which are adjacent and in the same straight line, and then a new set of hanger assemblies 4 are used to connect the connecting strip 2 and the main keel 1, so that the main keels 1 and the connecting strips 2 can be selected and used according to the actual width of the wall top, the telescopic connection is realized.

[0049] The coinciding portion of the connecting strip 2 and the main keel 1 is also connected by at least one hanger assembly 4, and the difference is that the screw rod one 401 passes through the strip-shaped groove 102 from the lower part of the main keel 1 upwards, and then the upper part of the screw rod one 401 is screwed into the frame 403, when the screw rod one 401 is connected with the auxiliary keel 3, the locking nut 4014 is rotated and moved downwards, so that it locks the connecting strip 2 and the main keel 1.

[0050] The above is only the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement of the technical solutions recorded in the foregoing embodiments, and the modification, equivalent replacement and improvement all belong to the protection scope of the utility model.

Claims

1. A telescopic connecting structure of a suspended ceiling joist, comprising a main joist (1), a connecting strip (2), a sub-joist (3) and a hanger assembly (4), characterized in that: One of the connecting strips (2) is overlapped on two adjacent and straight main keels (1), the center of the main keel (1) is provided with equidistantly distributed through holes (101), and the top surface of the main keel (1) is also provided with a through strip-shaped groove (102), and all the through holes (101) are located between the strip-shaped grooves (102); All the main keels (1) are clamped with auxiliary keels (3) below in parallel, and the upper part of the intersection point of each main keel (1) and auxiliary keel (3) is provided with a hanger rod assembly (4); The cross section of the auxiliary keel (3) is U-shaped, and a plurality of groups of symmetrically distributed clamping grooves (301) are formed on the two side surfaces of the auxiliary keel (3), the lower part of the main keel (1) is fixed with an ear plate (103), and the main keel (1) and the ear plate (103) are inserted into the clamping grooves (301). The hanger rod assembly (4) comprises a frame (403), a screw rod one (401) and a screw rod two (402), the screw rod one (401) and the screw rod two (402) are threadedly connected to the upper and lower parts of the frame (403), and the bottom of the screw rod one (401) penetrates the top surface of the main keel (1) and is fixed with a limiting plate (4011).

2. The telescopic connecting structure of a suspended ceiling joist according to claim 1, characterized in that: The cross section of the main keel (1) is trapezoidal, the inside of the main keel (1) is hollow, and the bottom surface is an open structure.

3. The telescopic connecting structure of a suspended ceiling joist according to claim 1, characterized in that: The inner bottom surface of the auxiliary keel (3) is fixed with equidistantly distributed threaded studs (302), the bottom of the limiting plate (4011) is fixed with two symmetric connecting rods (4012), and the bottom of the two connecting rods (4012) is fixed with a connecting nut (4013), and the connecting nut (4013) is screwed on the threaded studs (302).

4. The telescopic connecting structure of a suspended ceiling joist according to claim 3, characterized in that: The height of the threaded stud (302) is lower than the height of the auxiliary keel (3), and the threaded stud (302) is located between the clamping grooves (301) on the two sides of the auxiliary keel (3), and the threaded stud (302) is located below the connection between the main keel (1) and the screw rod one (401).

5. The telescopic connection structure of a suspended ceiling joist according to claim 4, characterized in that: The outer periphery of the screw rod one (401) is screwed with a locking nut (4014), and the locking nut (4014) is located above the main keel (1) and locks the screw rod one (401) and the main keel (1).

6. The telescopic connection structure of a suspended ceiling joist according to claim 5, characterized in that: The part where the strip-shaped groove (102) and the connecting strip (2) coincide is also provided with a hanger rod assembly (4), and the bottom of the screw rod one (401) in this state penetrates the connecting strip (2), the strip-shaped groove (102) and the inner cavity of the main keel (1) in sequence, and the locking nut (4014) is located on the connecting strip (2) and is locked; the bottom of the screw rod one (401) in the hanger rod assembly (4) at the center of the main keel (1) penetrates the through hole (101) and enters the inner cavity of the main keel (1).

7. The telescopic connecting structure of a suspended ceiling joist according to claim 1, characterized in that: The top of the screw rod two (402) is also fixed with a mounting lug (4021).

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