An adjustable connector between a light steel keel exterior wall and a main body

By designing the adjustable connections of the light steel keel exterior wall and main body, the horizontal, vertical and vertical adjustment structures are used to solve the problem of low installation accuracy of the light steel keel, and high-precision adjustment for efficient single-person operation is achieved.

CN116752719BActive Publication Date: 2025-08-26SHENZHEN OVERSEAS DECORATION ENG
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Patent Information

Application Number
CN202310976782.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-03
Publication Date
2025-08-26
Estimated Expiration
2043-08-03

AI Technical Summary

Technical Problem

The existing light steel keel is installed with low installation accuracy due to errors, and multiple people need to assist in adjustment, increasing labor costs.

Method used

An adjustable connection piece of light steel keel exterior wall and main body is designed, including horizontal, vertical and vertical adjustment structures. High-precision adjustment is achieved through expansion screws and waist holes, so that the position adjustment of the keel structure can be completed by a single person.

Benefits of technology

The position of the keel structure is adjusted with high precision, reducing labor costs and improving installation efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116752719B_ABST
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Abstract

The present invention belongs to the technical field of building workpieces, and specifically relates to an adjustable connector between a light steel keel exterior wall and a main body, comprising an exterior wall and a keel structure, wherein the side wall of the exterior wall is fixedly connected to the connector via expansion bolts, and the keel structure is fixedly installed on the outside of the exterior wall via the connector, and one end of the connector is provided with a first adjustment structure for adjusting the position of the connector horizontally and vertically, and one side of the connector is provided with a second adjustment structure for adjusting the position of the keel structure horizontally and laterally. In the present invention, when adjusting the position of the connector horizontally and vertically, the first strip hole moves along the expansion screw, while the position in other directions remains unchanged, the keel structure moves along the second strip hole to a horizontal and laterally position, and the keel structure moves along the third strip hole to adjust the position in the vertical direction. When the keel structure adjusts its position in one direction alone, its position in the direction remains unchanged, facilitating high-precision adjustment of the position of the keel structure.
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Description

Technical Field

[0001] The invention belongs to the technical field of building workpieces, and particularly relates to an adjustable connector between a light steel keel exterior wall and a main body. Background Art

[0002] The keel is a building material used to support the shape and fix the structure. It is widely used in hotels, terminal buildings, passenger stations, bus stations, theaters, shopping malls, factories, office buildings, old building renovations, interior decoration settings, ceilings and other places. The keel is the skeleton and base material of decoration. It is very commonly used. There are many types of keels. According to the different materials used, they can be divided into wooden keels, light steel keels, aluminum alloy keels, steel keels, etc. According to the use part, they can be divided into ceiling keels, vertical wall keels (partition wall keels), floor keels and hanging keels, etc. The exterior wall keels need to be installed with the help of connectors.

[0003] It is inevitable that certain errors will occur during the installation of the keel. The main sources of errors are the errors in the pre-installation position of the foundation screws, the errors in the materials themselves, the assembly errors, etc. In order to improve the installation accuracy of the keel, the errors need to be compensated. The connectors commonly used to connect the keels require workers to adjust the keel errors based on their own experience. Since the error distances come from different directions, when adjusting the errors in different directions, the positions in other directions are easy to change, resulting in poor adjustment effects. In addition, when fixing the keel, auxiliary personnel are required to stabilize the keel, which will increase the labor cost of keel installation. Summary of the Invention

[0004] The object of the present invention is to provide an adjustable connector between a light steel keel exterior wall and a main body, which can adjust the position of the keel structure with high precision to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an adjustable connector between a light steel keel exterior wall and a main body, comprising an exterior wall and a keel structure, wherein the side wall of the exterior wall is fixedly connected to the connector by expansion bolts, and the keel structure is fixedly installed on the outside of the exterior wall by the connector, and a first adjustment structure for horizontally and vertically adjusting the position of the connector is provided at one end of the connector, a second adjustment structure for horizontally and laterally adjusting the position of the keel structure is provided on one side of the connector, and a third adjustment structure for vertically adjusting the position of the keel structure is provided in the middle of one side of the connector.

[0006] Furthermore, the keel structure includes a keel body, one side of the keel body is fixedly connected to a back plate, and a waist-shaped hole is provided on the surface of the back plate.

[0007] Furthermore, the connecting member includes a thick plate, one side of the thick plate is fixedly connected to a thin plate, both sides of the thin plate are fixedly connected to a reinforcing plate, one end of the reinforcing plate is fixedly connected to one side of the thick plate, and through holes are evenly opened on the surface of the thin plate.

[0008] Furthermore, the first adjustment structure includes a first strip hole symmetrically opened on the surface of the thick plate, the second adjustment structure includes a second strip hole symmetrically opened on the surface of the thin plate, and the third adjustment structure includes a third strip hole opened on the surface of the thick plate.

[0009] Furthermore, a first auxiliary connection structure for preliminarily connecting the keel structure is symmetrically provided on one side of the thin plate, and the two first auxiliary connection structures are respectively provided corresponding to the two second strip holes. A second auxiliary connection structure is provided on one side of the thin plate, and the second auxiliary connection structure is provided corresponding to the third adjustment structure. One end of the second auxiliary connection structure is detachably connected to the back plate by cooperating with the waist-shaped hole.

[0010] Furthermore, the first auxiliary connection structure includes two first L-shaped slides fixedly connected to one side of the thin plate, the two first L-shaped slides are symmetrically arranged on both sides of the second strip hole, a slider is slidably connected between the two first L-shaped slides, a stepped hole is opened in the middle of the slider, and a connecting component is slidably connected to the inside of the stepped hole, one end of the slider is fixedly connected to a cylinder, the cylinder is slidably connected to the inside of the second strip hole, and the connecting component passes through the cylinder.

[0011] Furthermore, the connecting assembly includes a connecting rod, which is slidably connected to the inside of the stepped hole, one end of the connecting rod is fixedly connected to a hexagonal end, the other end of the connecting rod is fixedly connected to a circular plate, one end of the circular plate is fixedly connected to a screw for threaded connection with the back plate, and the screw passes through the cylinder.

[0012] Furthermore, the second auxiliary connection structure includes two second L-shaped slides fixedly connected to one side of the thin plate, the two second L-shaped slides are symmetrically arranged on both sides of the third strip-shaped hole, and a base block is slidably connected between the two second L-shaped slides. A placement hole is opened in the middle of the base block, and a detachable docking piece is arranged inside the placement hole. A circular ring for limiting the detachable docking piece is provided at one end of the placement hole, and one end of the detachable docking piece passes through the circular ring.

[0013] Furthermore, the detachable docking part includes a round rod rotatably connected to the inside of the installation hole, one end of the round rod passes through the installation hole, one end of the round rod is fixedly connected to an insertion rod, one end of the insertion rod is fixedly connected to a connecting column, one end of the connecting column is fixedly connected to a waist-shaped end head, and a torsion spring is provided on the side wall of the insertion rod, one end of the torsion spring is fixedly connected to one end of the round rod, and the other end of the torsion spring is fixedly connected to one end of the circular ring.

[0014] Furthermore, the longitudinal section of the waist-shaped end is the same as the longitudinal section of the waist-shaped hole, the diameter of the connecting column is equal to the width of the waist-shaped end, and the length of the connecting column is equal to the thickness of the backboard.

[0015] Compared with the prior art, the beneficial effects of the present invention are: when adjusting the position of the connecting piece horizontally and vertically, the first strip hole moves along the expansion screw, and the positions in other directions remain unchanged; the keel structure moves along the second strip hole to a horizontal position, and the keel structure moves along the third strip hole to adjust the vertical position; when the keel structure adjusts the position in one direction alone, its position in the direction remains unchanged, which facilitates high-precision adjustment of the position of the keel structure; when adjusting and installing the keel structure, no separate assistance is required, and a single person can complete the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the keel structure of the present invention;

[0018] Figure 3 Schematic diagram of the three-dimensional structure of the connecting piece of the present invention;

[0019] Figure 4 An exploded view of the first auxiliary connection structure of the present invention;

[0020] Figure 5 An exploded view of the second auxiliary connection structure of the present invention;

[0021] Figure 6 A top sectional view of the present invention;

[0022] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of part A.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Exterior wall; 2. Keel structure; 21. Keel body; 22. Back plate; 23. Waist-shaped hole; 3. Connector; 31. Thick plate; 32. Thin plate; 33. Reinforcement plate; 34. Through hole; 4. First adjustment structure; 41. First strip hole; 5. Second adjustment structure; 51. Second strip hole; 6. Third adjustment structure; 61. Third strip hole; 7. First auxiliary connection structure; 71. First L-shaped slide; 72. Slider; 73. Connecting assembly; 731. Connecting rod; 732. Hexagon socket end; 733. Round plate; 734. Screw; 74. Stepped hole; 75. Cylinder; 8. Second auxiliary connecting structure; 81. Second L-shaped slide; 82. Base block; 83. Separable docking piece; 831. Round rod; 832. Insert rod; 833. Waist-shaped end; 834. Connecting column; 835. Torsion spring; 84. Ring; 85. Mounting hole. DETAILED DESCRIPTION

[0025] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0026] like Figure 1 and 2 As shown, a light steel keel exterior wall and main body adjustable connector includes an exterior wall 1 and a keel structure 2. The side wall of the exterior wall 1 is fixedly connected to a connector 3 by an expansion bolt. The keel structure 2 is fixedly installed on the outside of the exterior wall 1 through the connector 3. The keel structure 2 includes a keel body 21. One side of the keel body 21 is fixedly connected to a back plate 22. The surface of the back plate 22 is provided with a waist-shaped hole 23. One end of the connector 3 is provided with a first adjustment structure 4 for horizontally and vertically adjusting the position of the connector 3. One side of the connector 3 is provided with a second adjustment structure 5 for horizontally and laterally adjusting the position of the keel structure 2. The middle part of one side of the connector 3 is provided with a third adjustment structure 6 for vertically adjusting the position of the keel structure 2.

[0027] According to the above structure, when installing the keel structure 2, the connecting member 3 is first installed on the outer wall 1. When installing the connecting member 3, the expansion screw is first pre-installed on the outer wall 1. When installing the connecting member 3, the overall position of the connecting member 3 is adjusted horizontally and vertically through the first adjustment structure 4, thereby compensating for the error in the installation of the expansion screw and improving the installation accuracy. When installing the keel structure 2, the horizontal, transverse and vertical positions of the keel structure 2 are adjusted through the second adjustment structure 5 and the third adjustment structure 6. Together with the first adjustment structure 4, the position of the keel structure 2 can be adjusted from three dimensions to improve the installation accuracy of the keel structure 2.

[0028] like Figure 1 and 3As shown, the connecting member 3 includes a thick plate 31, one side of the thick plate 31 is fixedly connected to a thin plate 32, both sides of the thin plate 32 are fixedly connected to a reinforcing plate 33, one end of the reinforcing plate 33 is fixedly connected to one side of the thick plate 31, and through holes 34 are evenly opened on the surface of the thin plate 32. The first adjustment structure 4 includes a first strip hole 41 symmetrically opened on the surface of the thick plate 31, the second adjustment structure 5 includes a second strip hole 51 symmetrically opened on the surface of the thin plate 32, and the third adjustment structure 6 includes a third strip hole 61 opened on the surface of the thick plate 31.

[0029] According to the above structure, when adjusting the position of the connecting member 3 horizontally and vertically, the first strip hole 41 is moved along the expansion screw by moving the thick plate 31 horizontally and vertically. When adjusting the horizontal and vertical positions, the positions in the other two directions remain unchanged. After the adjustment is completed, the thick plate 31 is fixed to the outer wall 1 by tightening the nut on the expansion screw. When adjusting the horizontal and transverse position of the keel structure 2, the keel structure 2 is moved along the second strip hole 51. Similarly, when adjusting the vertical position of the keel structure 2, the keel structure 2 is moved along the third strip hole 61.

[0030] like Figure 1 and 3 As shown, a first auxiliary connection structure 7 for preliminarily connecting to the keel structure 2 is symmetrically provided on one side of the thin plate 32, and the two first auxiliary connection structures 7 are respectively provided corresponding to the two second strip holes 51. A second auxiliary connection structure 8 is provided on one side of the thin plate 32, and the second auxiliary connection structure 8 is provided corresponding to the third adjustment structure 6. One end of the second auxiliary connection structure 8 is detachably connected to the back plate 22 by cooperating with the waist-shaped hole 23.

[0031] According to the above structure, when adjusting the vertical position of the keel structure 2, the second auxiliary connecting structure 8 is connected to the waist-shaped hole 23, and the second auxiliary connecting structure 8 can move along the third strip hole 61, so that when the keel structure 2 is adjusted in the vertical direction, the position in other directions remains unchanged, and the position of the keel structure 2 is adjusted. Similarly, when adjusting the horizontal position of the keel structure 2, it is connected to the keel structure 2 through the first auxiliary connecting structure 7, and the first auxiliary connecting structure 7 moves along the second strip hole 51 to avoid changes in the position of the keel structure 2 in other directions.

[0032] like Figure 2-7As shown, the second auxiliary connection structure 8 includes two second L-shaped slides 81 fixedly connected to one side of the thin plate 32, the two second L-shaped slides 81 are symmetrically arranged on both sides of the third bar-shaped hole 61, and a base block 82 is slidably connected between the two second L-shaped slides 81. A placement hole 85 is opened in the middle of the base block 82, and a detachable docking piece 83 is arranged inside the placement hole 85. A ring 84 for limiting the detachable docking piece 83 is provided at one end of the placement hole 85. One end of the detachable docking piece 83 passes through the ring 84. The detachable docking piece 83 includes a round rod 831 rotatably connected to the inside of the placement hole 85. The round rod 831 is rotatably connected to the inside of the placement hole 85. One end of 31 passes through the placement hole 85, one end of the round rod 831 is fixedly connected to the insertion rod 832, one end of the insertion rod 832 is fixedly connected to the connecting column 834, one end of the connecting column 834 is fixedly connected to the waist-shaped end head 833, and the side wall of the insertion rod 832 is sleeved with a torsion spring 835, one end of the torsion spring 835 is fixedly connected to one end of the round rod 831, and the other end of the torsion spring 835 is fixedly connected to one end of the circular ring 84, the longitudinal section of the waist-shaped end head 833 is the same as the longitudinal section of the waist-shaped hole 23, the diameter of the connecting column 834 is equal to the width of the waist-shaped end head 833, and the length of the connecting column 834 is equal to the thickness of the back plate 22.

[0033] According to the above structure, when adjusting the vertical position of the keel structure 2, first twist the round rod 831 so that one end of the waist-shaped end 833 is aligned with the waist-shaped hole 23. At this time, the torsion spring 835 stores energy, and then press the round rod 831 to compress the torsion spring 835, so that the waist-shaped end 833 passes through the waist-shaped hole 23, and the connecting column 834 passes into the waist-shaped hole 23. Then release the round rod 831, and the round rod 831 rotates under the drive of the torsion spring 835, so that the waist-shaped end 833 is perpendicular to the waist-shaped hole 23, so that the back plate 22 is stuck on one side of the waist-shaped end 833, and then move the position of the keel body 21 up and down to the target position.

[0034] like Figure 4 、 6 As shown in 7, the first auxiliary connecting structure 7 includes two first L-shaped slides 71 fixedly connected to one side of the thin plate 32, the two first L-shaped slides 71 are symmetrically arranged on both sides of the second strip hole 51, and a slider 72 is slidably connected between the two first L-shaped slides 71. A stepped hole 74 is opened in the middle of the slider 72, and a connecting component 73 is slidably connected inside the stepped hole 74. One end of the slider 72 is fixedly connected to a cylinder 75, and the cylinder 75 is slidably connected to the inside of the second strip hole 51. The connecting component 73 passes through the cylinder 75, and the connecting component 73 includes a connecting rod 731. The connecting rod 731 is slidably connected to the inside of the stepped hole 74, one end of the connecting rod 731 is fixedly connected to the hexagonal end 732, and the other end of the connecting rod 731 is fixedly connected to a circular plate 733, and one end of the circular plate 733 is fixedly connected to a screw 734 for threaded connection with the back plate 22, and the screw 734 passes through the cylinder 75.

[0035] According to the above structure, after the vertical position adjustment of the keel body 21 is completed, the hexagonal end 732 is screwed with a screwdriver to screw the screw 734 into the interior of the back panel 22, and then the round rod 831 is rotated in the opposite direction to make the waist-shaped end 833 parallel to the waist-shaped hole 23, and then the waist-shaped end 833 passes through the waist-shaped hole 23 under the axial elastic force of the torsion spring 835, so that the back panel 22 is separated from the detachable docking piece 83. At this time, the position of the keel body 21 can be adjusted horizontally. During adjustment, the slider 72 moves between the two first L-shaped slides 71 to avoid changes in the position of the keel structure 2 in other directions until the keel body 21 moves to the target position, and then the self-tapping screws are used to pass through the through hole 34 to fix the back panel 22 to the thin plate 32. When adjusting and installing the keel structure 2, no assistance from others is required, and the operation can be completed by one person.

[0036] The working principle of the present invention is as follows: when installing the keel structure 2, first install the connecting piece 3 on the outer wall 1. When installing the connecting piece 3, first pre-install the expansion screw on the outer wall 1. When adjusting the position of the connecting piece 3 horizontally and vertically, the thick plate 31 is moved horizontally and vertically to make the first strip hole 41 move along the expansion screw. After the adjustment is completed, the thick plate 31 is fixed to the outer wall 1 by tightening the nut on the expansion screw. When adjusting the horizontal position of the keel structure 2, the keel structure 2 is moved along the second strip hole 51. When adjusting the vertical position of the keel structure 2, the keel structure 2 can be moved along the third strip hole 61. When adjusting the vertical position of the keel structure 2, the round rod 831 is first twisted to align one end of the waist-shaped end 833 with the waist-shaped hole 23. At this time, the torsion spring 835 is energized, and then the round rod 831 is pressed to compress the torsion spring 835, so that the waist-shaped end 833 passes through the waist-shaped hole 23, and the connecting column 834 passes into the inside of the waist-shaped hole 23. Then the round rod 831 is loosened, and the torsion spring 835 is brought into contact with the waist-shaped hole 23. The lower round rod 831 is rotated to make the waist-shaped end 833 perpendicular to the waist-shaped hole 23, so that the back plate 22 is stuck on one side of the waist-shaped end 833, and then the position of the keel body 21 is moved up and down to the target position. After the vertical position adjustment of the keel body 21 is completed, the hexagonal end 732 is screwed with a screwdriver to screw the screw 734 into the interior of the back plate 22, and then the round rod 831 is rotated in the opposite direction to make the waist-shaped end 833 parallel to the waist-shaped hole 23, and then the waist is lowered under the axial elastic force of the torsion spring 835. The L-shaped end 833 passes through the waist-shaped hole 23 to separate the back panel 22 from the detachable docking piece 83. At this time, the position of the keel body 21 can be adjusted horizontally. During adjustment, the slider 72 moves between the two first L-shaped slides 71 to prevent the position of the keel structure 2 from changing in other directions until the keel body 21 moves to the target position. Then, self-tapping screws are used to pass through the through holes 34 to fix the back panel 22 and the thin plate 32. When adjusting and installing the keel structure 2, no assistance from others is required, and the operation can be completed by one person.

[0037] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A light steel keel exterior wall and main body adjustable connector, comprising an exterior wall (1) and a keel structure (2), characterized in that: The side wall of the outer wall (1) is fixedly connected to a connecting piece (3) via an expansion bolt, and the keel structure (2) is fixedly installed on the outer side of the outer wall (1) via the connecting piece (3); one end of the connecting piece (3) is provided with a first adjustment structure (4) for adjusting the position of the connecting piece (3) horizontally and vertically, one side of the connecting piece (3) is provided with a second adjustment structure (5) for adjusting the position of the keel structure (2) horizontally and laterally, and the middle part of one side of the connecting piece (3) is provided with a third adjustment structure (6) for adjusting the position of the keel structure (2) vertically; The keel structure (2) comprises a keel body (21), one side of the keel body (21) is fixedly connected to a back plate (22), and a waist-shaped hole (23) is provided on the surface of the back plate (22); The connecting member (3) includes a thick plate (31), one side of the thick plate (31) is fixedly connected to a thin plate (32), both sides of the thin plate (32) are fixedly connected to reinforcing plates (33), one end of the reinforcing plate (33) is fixedly connected to one side of the thick plate (31), and the surface of the thin plate (32) is uniformly provided with through holes (34); The first adjustment structure (4) includes a first strip hole (41) symmetrically opened on the surface of the thick plate (31), the second adjustment structure (5) includes a second strip hole (51) symmetrically opened on the surface of the thin plate (32), and the third adjustment structure (6) includes a third strip hole (61) opened on the surface of the thick plate (31); A first auxiliary connection structure (7) for preliminarily connecting the keel structure (2) is symmetrically provided on one side of the thin plate (32), and the two first auxiliary connection structures (7) are respectively provided corresponding to the two second strip holes (51). A second auxiliary connection structure (8) is provided on one side of the thin plate (32), and the second auxiliary connection structure (8) is provided corresponding to the third adjustment structure (6). One end of the second auxiliary connection structure (8) is detachably connected to the back plate (22) by cooperating with the waist-shaped hole (23). The first auxiliary connection structure (7) includes two first L-shaped slides (71) fixedly connected to one side of the thin plate (32), and the two first L-shaped slides (71) are symmetrically provided on both sides of the second strip hole (51). A slider (72) is slidably connected between the two first L-shaped slides (71), and a stepped hole (74) is provided in the middle of the slider (72). The hole (74) is slidably connected to a connecting assembly (73), one end of the slider (72) is fixedly connected to a cylinder (75), the cylinder (75) is slidably connected to the inside of the second strip hole (51), the connecting assembly (73) passes through the cylinder (75), the second auxiliary connecting structure (8) includes two second L-shaped slides (81) fixedly connected to one side of the thin plate (32), the two second L-shaped slides (81) are symmetrically arranged on both sides of the third strip hole (61), a base block (82) is slidably connected between the two second L-shaped slides (81), a placement hole (85) is opened in the middle of the base block (82), a detachable docking piece (83) is arranged inside the placement hole (85), a circular ring (84) for limiting the detachable docking piece (83) is provided at one end of the placement hole (85), and one end of the detachable docking piece (83) passes through the circular ring (84).

2. The adjustable connector for a light steel keel exterior wall and a main body according to claim 1, characterized in that: The connecting assembly (73) includes a connecting rod (731), the connecting rod (731) is slidably connected to the inside of the stepped hole (74), one end of the connecting rod (731) is fixedly connected to a hexagonal end (732), the other end of the connecting rod (731) is fixedly connected to a circular plate (733), one end of the circular plate (733) is fixedly connected to a screw (734) for threaded connection with the back plate (22), and the screw (734) passes through the cylinder (75).

3. The adjustable connector for a light steel keel exterior wall and a main body according to claim 2, characterized in that: The detachable docking member (83) comprises a round rod (831) rotatably connected to the interior of the placement hole (85), one end of the round rod (831) passes through the placement hole (85), one end of the round rod (831) is fixedly connected to an insertion rod (832), one end of the insertion rod (832) is fixedly connected to a connecting column (834), one end of the connecting column (834) is fixedly connected to a waist-shaped end (833), a torsion spring (835) is sleeved on the side wall of the insertion rod (832), one end of the torsion spring (835) is fixedly connected to one end of the round rod (831), and the other end of the torsion spring (835) is fixedly connected to one end of the ring (84).

4. The adjustable connector for a light steel keel exterior wall and a main body according to claim 3, characterized in that: The longitudinal section of the waist-shaped end (833) is the same as the longitudinal section of the waist-shaped hole (23), the diameter of the connecting column (834) is equal to the width of the waist-shaped end (833), and the length of the connecting column (834) is equal to the thickness of the back plate (22).

Citation Information

Patent Citations

  • Adjustable wall vertical keel mounting structure

    CN215858455U

  • Connecting system capable of adjusting keel installation deviation for construction site

    CN219240877U