Steel structure outer wall connecting structure

Abstract

The utility model belongs to the technical field of steel structures, and particularly relates to a steel structure outer wall connecting structure which comprises an upper clamping part and a lower clamping part which are fixedly installed on the upper side face and the lower side face of an outer wall plate respectively, and further comprises an outer wall support and a lock pin device. An arc-shaped groove is formed in the lower lock pin device, an outer wall plate is attached to the arc-shaped groove to rotate in the installation process through the rotating attaching face, the rotating attaching face is matched with the arc-shaped groove formed in the lower lock pin device, the outer wall plate can rotate in the arc-shaped groove, and the outer wall plate can be conveniently installed. And meanwhile, the lock pin device is matched with the upper clamping part and the lower clamping part, so that the outer wall plate is fixed by inserting a lock pin in the lock pin device into a lock groove after the outer wall plate is attached in place, and therefore, the efficiency of assembly construction is improved, and the difficulty of hoisting construction is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel structures, and particularly relates to a connecting structure for the outer wall of a steel structure. Background Art

[0002] The prefabricated outer wall of a steel structure is an innovative and advanced technical application in the modern construction field. This kind of outer wall has many remarkable advantages. First of all, it reflects a high degree of industrialization and prefabrication. It is precisely processed and manufactured in the factory, ensuring the stability and reliability of quality. At the same time, during the construction process, the prefabricated outer wall of a steel structure can shorten the construction period, improve project efficiency, and reduce the workload and difficulty of on-site construction.

[0003] For example, in the utility model patent with the authorized patent publication number CN214941333U, which discloses a corner connection node of an external wall panel and a prefabricated building external wall, two prefabricated integrated external wall panels are vertically arranged at the corner of the wall. The side frame columns of one side prefabricated external wall panel and the side frame columns of the other side prefabricated external wall panel are respectively connected to the frame beams of the building main structure. After the column sides are spliced, a right-angle corner of the outer wall surface can be formed outside the steel column. Its installation method belongs to the conventional installation method. During the installation process of the prefabricated wall panel, it is necessary to hoist the prefabricated external wall panel to make it fit with the frame main body at the preset position. However, there are problems in the current installation process that it is inconvenient to fit with the frame and not convenient for assembly. Therefore, a connecting structure for the outer wall of a steel structure that can facilitate the rapid installation of the prefabricated external wall is needed. Summary of the Invention

[0004] In view of the above problems, the utility model proposes a connecting structure for the outer wall of a steel structure, which well solves the problem that the outer wall panel is not convenient to fit with the frame main body during the hoisting and assembly process of the prefabricated outer wall panel in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows: A connecting structure for the outer wall of a steel structure includes an upper clamping part and a lower clamping part respectively fixedly installed on the upper side and the lower side of the outer wall panel, and also includes an outer wall bracket and a locking pin device. The locking pin device includes an upper locking pin device fixed on the upper part of the outer wall bracket and a lower locking pin device arranged on the lower part of the outer wall bracket. The upper locking pin device and the lower locking pin device are both provided with locking pins that can pop out and retract. Locking grooves matched with the locking pins are arranged on both the upper clamping part and the lower clamping part. The locking pins are clamped in the locking grooves. An arc-shaped groove is arranged on the upper side of the lower locking pin device, and a rotating fitting surface for abutting against the arc-shaped groove is arranged on the lower side of the lower clamping part. The rotating fitting surface is an arc-shaped surface.

[0006] Further, the upper locking pin device includes an upper guard bar and an upper locking pin. The upper guard bar is fixedly connected to the upper part of the outer wall bracket. The upper locking pin is arranged inside the upper guard bar. The lower end of the upper locking pin can extend out and retract from the lower side surface of the upper guard bar. An upper locking groove is formed on the upper side surface of the upper clamping portion.

[0007] Further, the lower locking pin device includes a lower guard bar and two lower locking bodies. The two lower locking bodies are respectively arranged at both ends of the upper side surface of the lower guard bar. Lower locking pins are arranged inside the lower locking bodies. One end of each lower locking pin can extend out and retract from the inner side surface of the corresponding lower locking body. Locking body grooves matching the shapes of the locking bodies are arranged at both ends of the lower clamping portion. Lower locking grooves matching the locking pins are arranged on the inner side surfaces of the locking body grooves.

[0008] Further, a baffle groove is formed on the lower side surface of the upper guard bar. An upper baffle whose upper end is fixedly connected to the upper locking pin is arranged inside the baffle groove. The upper baffle is slidably connected to the baffle groove. A chamfer is arranged at the lower end of the front side surface of the upper baffle. The upper locking groove is strip-shaped. The lower part of the upper baffle is clamped in the upper locking groove. By arranging the baffle groove, the outer wall panel is made more secure after being fixed.

[0009] Further, upper unlocking grooves are formed on the rear side surfaces of the upper guard bar. Upper unlocking rods connected to the upper locking pins are arranged inside the upper locking grooves. Lower unlocking grooves are formed on the rear side surfaces of the lower locking bodies. Lower unlocking rods connected to the lower locking pins are arranged inside the lower unlocking grooves.

[0010] Further, lower fixing clamping grooves are arranged on the lower unlocking grooves.

[0011] Further, a support bar is arranged inside the arc-shaped groove. The upper side surface of the support bar is an arc-shaped surface. A fan-shaped rotation groove is formed on the rotation fitting surface. The bottom of the fan-shaped rotation groove is an arc matching the upper side surface of the support bar.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By arranging the rotation fitting surface to cooperate with the arc-shaped groove arranged on the lower locking pin device, during the installation process of the outer wall panel, the outer wall panel rotates by fitting the rotation fitting surface to the arc-shaped groove, so that the outer wall panel can be easily fitted to the outer wall bracket;

[0014] Meanwhile, through the cooperation of the locking pin device with the upper clamping portion and the lower clamping portion, after the outer wall panel is in place, the outer wall panel is fixed by inserting the locking pin in the locking pin device into the locking groove, which is convenient for the subsequent assembly construction of the outer wall panel, greatly improves the efficiency of the assembly construction, and reduces the difficulty of the hoisting construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic cross-sectional structure diagram of the utility model in the usage state;

[0017] Figure 3 is Figure 1 an enlarged view of the structure of part A in

[0018] Figure 4 is Figure 1 an enlarged view of the structure of part B in

[0019] Figure 5 is Figure 2 an enlarged view of the structure of part C in

[0020] Figure 6 is Figure 2 an enlarged view of the structure of part D in

[0021] Figure 7 is a front elevation sectional view of the upper locking pin device part;

[0022] Figure 8 is a schematic diagram of the rear side structure of the lower lock body;

[0023] Figure 9 is a schematic diagram of the internal structure of the lower lock body.

[0024] In the figure: 1, outer wall panel; 2, upper clamping part; 21, upper locking groove; 3, lower clamping part; 31, lock body groove; 32, lower locking groove; 4, outer wall bracket; 5, upper locking pin device; 51, upper guard bar; 52, upper locking pin; 521, pin head; 522, first convex ring; 53, first spring hole; 54, first lock pin hole; 55, first plug; 56, first spring; 6, lower locking pin device; 61, lower guard bar; 62, lower lock body; 63, lower locking pin; 64, second spring hole; 65, second lock pin hole; 66, second convex ring; 67, second plug; 68, second spring; 7, arc groove; 8, rotating fitting surface; 9, upper baffle; 91, clamping groove; 10, upper unlocking groove; 102, lower fixed clamping groove; 11, upper unlocking rod; 12, lower unlocking groove; 13, lower unlocking rod; 14, support bar; 15, fan-shaped rotating groove. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figures 1-9As shown in the figure, a connecting structure for a steel structure exterior wall includes an upper clamping part 2 and a lower clamping part 3 respectively fixedly installed on the upper side and the lower side of the exterior wall panel 1. The upper end and the lower end of the exterior wall panel 1 are fixedly connected to the upper clamping part 2 and the lower clamping part 3 respectively by welding. It also includes an exterior wall bracket 4 and a locking pin device. The exterior wall bracket 4 is a square frame welded by square steel. The locking pin device includes an upper locking pin device 5 and a lower locking pin device 6. The upper locking pin device 5 and the lower locking pin device 6 are fixedly welded on the horizontal square steel of the exterior wall bracket 4. Both the upper locking pin device 5 and the lower locking pin device 6 are provided with locking pins that can pop out and retract. Locking grooves that cooperate with the locking pins are provided on both the upper clamping part 2 and the lower clamping part 3. The locking pins are clamped in the locking grooves. An arc-shaped groove 7 is formed on the upper side of the lower locking pin device 6, and a rotating fitting surface 8 that abuts against the arc-shaped groove 7 is provided on the lower side of the lower clamping part 3. The rotating fitting surface 8 is an arc-shaped surface.

[0027] In this embodiment, the upper locking pin device 5 includes an upper guard bar 51 and an upper locking pin 52. The upper guard bar 51 is fixedly connected to the upper part of the exterior wall bracket 4 by welding. Two first spring holes 53 are formed on the upper side of the upper guard bar 51. Two first locking pin holes 54 that communicate with the first spring holes 53 are formed on the lower side of the upper guard bar 51. The upper locking pins 52 are installed in the spring holes. Each upper locking pin 52 includes a pin head 521 and a first convex ring 522 arranged around the pin head 521. The lower ends of the pin heads 521 of the locking pins pass through the first locking pin holes 54. The lower side of the first convex ring 522 abuts against the bottom of the first spring hole 53. A first plug 55 is threadedly connected to the upper part of the first spring hole 53. A first spring 56 is arranged in the first spring hole 53. The upper and lower ends of the first spring 56 respectively abut against the first plug 55 and the first convex ring 522. The lower end of the upper locking pin 52 can extend out of and retract from the lower side of the upper guard bar 51 through the first locking pin hole 54. An upper locking groove 21 is formed on the upper side of the upper clamping part 2.

[0028] In this embodiment, the lower locking pin device 6 includes a lower bumper 61 and two lower lock bodies 62. The lower bumper 61 is fixedly welded to the lower part of the outer wall bracket 4. The two lower lock bodies 62 are respectively arranged at both ends of the upper side surface of the lower bumper 61. Spring holes two 64 are formed in the outer side surfaces of the lower lock bodies 62. Lock pin holes two 65 communicating with the spring holes two 64 are formed in the inner side surfaces of the lower lock bodies 62. Lower locking pins 63 are respectively inserted into the spring holes two 64. Second convex rings 66 are arranged on the outer sides of the lower locking pins 63. One end of the lower locking pin 63 is inserted into the lock pin hole two 65. Second plugs 67 are threadedly connected to the orifices of the spring holes two 64. Second springs 68 are arranged in the spring holes two 64. The two ends of the second spring 68 respectively abut against the second convex ring 66 and the second plug 67. The end of the lower locking pin 63 inserted into the lock pin hole two 65 can extend out from and retract into the inner side surface of the lower lock body 62. Lock body grooves 31 matching the shape of the lock body are formed at both ends of the lower clamping portion 3. Lower locking grooves 32 matching the locking pins are arranged on the inner side surfaces of the lock body grooves 31.

[0029] In this embodiment, a baffle groove is formed in the lower side surface of the upper bumper 51. An upper baffle 9 is arranged in the baffle groove. A clamping groove 91 is formed in the upper side surface of the upper baffle 9. The lower end of the upper locking pin 52 is inserted into the clamping groove 91 and fixedly connected by a horizontally penetrating screw. The upper baffle 9 is smaller than the baffle groove, and the upper baffle 9 can slide up and down in the baffle groove. A chamfer is arranged at the lower end of the front side surface of the upper baffle 9. A chamfer is also arranged at the upper end of the rear side surface of the upper clamping portion 2, which is convenient for the upper clamping portion 2 to push the baffle groove to move up when contacting the baffle groove. The upper locking groove 21 is strip-shaped, and the lower part of the upper baffle 9 is clamped in the upper locking groove 21.

[0030] In this embodiment, upper unlocking grooves 10 are formed in the rear side surface of the upper bumper 51 along the vertical movement direction of the upper locking pin 52. A threaded hole is formed in the rear side surface of the upper locking pin 52. An upper unlocking rod 11 is inserted into the upper locking groove 21. An external thread is formed at one end of the upper unlocking rod 11. The end of the upper unlocking rod 11 with the external thread is threadedly connected to the threaded hole formed in the rear side surface of the upper locking pin 52. A lower unlocking groove 12 is formed horizontally in the rear side surface of the lower lock body 62. The lower unlocking groove 12 is located behind the lower locking pin 63. A threaded hole is formed in the rear side surface of the lower locking pin 63. A lower unlocking rod 13 is inserted into the lower unlocking groove 12. An external thread is formed at one end of the lower unlocking rod 13, and the end of the lower unlocking rod 13 with the external thread is threadedly connected to the threaded hole formed in the rear side surface of the lower locking pin 63.

[0031] In this embodiment, a lower fixed card slot 102 is provided at one end outside the lower unlocking slot 12. The lower fixed card slot 102 is a strip-shaped slot opened downward, and the width of the strip-shaped slot is greater than the width of the lower unlocking rod 13. The provided lower fixed card slot 102 can be used to limit the movement of the lower unlocking rod 13, thus facilitating unlocking.

[0032] In this embodiment, a support strip 14 is integrally connected inside the arc-shaped slot 7. The upper side surface of the support strip 14 is an arc-shaped surface. A sector-shaped rotation slot 15 is provided on the rotation fitting surface 8. The cross-section of the sector-shaped rotation slot 15 is sector-shaped, and the bottom of the sector-shaped rotation slot 15 is arc-shaped.

[0033] When the present utility model is in use, the exterior wall bracket 4 with the lock pin device is fixedly installed at the preset construction position through fixing bolts. The exterior wall panel 1 with the upper clamping portion 2 and the lower clamping portion 3 is lifted by hoisting. The exterior wall panel 1 is moved to the position of the exterior wall bracket 4. The sector-shaped rotation slot 15 of the lower clamping portion 3 is aligned with the support strip 14, and the support strip 14 is inserted into the sector-shaped rotation slot 15. At the same time, the rotation fitting surface 8 abuts against and fits the arc-shaped slot 7 provided on the lower lock pin device 6, so that the exterior wall panel 1 can rotate upward with the support of the arc-shaped slot 7 to make the exterior wall panel 1 fit with the exterior wall bracket 4. During the rotation process, the support strip 14 prevents the lower clamping portion 3 from slipping out of the arc-shaped slot 7. When the exterior wall panel 1 fits with the exterior wall bracket 4, the upper lock pin 52 and the lower lock pin 63 are respectively clamped in the upper lock slot 21 and the lower lock slot 32. At this time, the exterior wall panel 1 is fixed on the exterior wall bracket 4, which is convenient for subsequent installation steps such as bolt tightening, greatly improving the construction efficiency. At the same time, if it is necessary to disassemble the exterior wall panel 1, the installed bolts can be removed first, and then the lower unlocking rod 13 is toggled to the lower unlocking slot 12, and the upper unlocking rod 11 is propped up at the same time, so as to drive the lower part of the upper baffle 9 to disengage from the upper lock slot 21. At this time, the fixation of the exterior wall panel 1 is released.

[0034] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A steel structure exterior wall connection structure, comprising an upper clamping portion and a lower clamping portion respectively fixedly mounted on the upper side and the lower side of the exterior wall plate, characterized in that: The lock pin device also includes an external wall bracket and a locking pin device, wherein the locking pin device includes an upper locking pin device fixed to the upper part of the external wall bracket and a lower locking pin device arranged at the lower part of the external wall bracket, the upper locking pin device and the lower locking pin device are both provided with locking pins that can pop out and retract, the upper clamping part and the lower clamping part are both provided with locking grooves that cooperate with the locking pin, the locking pin is clamped in the locking groove, the upper side surface of the lower locking pin device is provided with an arc groove, and the lower side surface of the lower clamping part is provided with a rotating fitting surface that abuts the arc groove, and the rotating fitting surface is an arc surface.

2. The steel structure exterior wall connection structure according to claim 1, characterized in that: The upper locking pin device includes an upper guard bar and an upper locking pin. The upper guard bar is fixedly connected to the upper part of the outer wall bracket. The upper locking pin is arranged in the upper guard bar. The lower end of the upper locking pin can extend and retract from the lower side of the upper guard bar. A locking groove is provided on the upper side of the upper clamping part.

3. The steel structure exterior wall connection structure according to claim 2, characterized in that: The lower lock pin device includes a lower guard bar and two lower lock bodies, the two lower lock bodies are respectively arranged at the two ends of the upper side surface of the lower guard bar, the lower lock bodies are each provided with a lower lock pin, one end of the lower lock pin can extend from and retract from the inner side surface of the lower lock body, the two ends of the lower clamping part are provided with lock body grooves matching the shape of the lock body, and the inner side surfaces of the lock body grooves are each provided with lower lock grooves matching the lock pin.

4. The steel structure exterior wall connection structure according to claim 2, characterized in that: A baffle groove is provided on the lower side of the upper guard bar, and an upper baffle whose upper end is fixedly connected to the upper locking pin is arranged in the baffle groove. The upper baffle is slidably connected to the baffle groove, and a chamfer is provided on the lower end of the front side of the upper baffle. The upper locking groove is in the shape of an elongated strip, and the lower part of the upper baffle is clamped in the upper locking groove.

5. The steel structure exterior wall connection structure according to claim 3, characterized in that: The rear side surface of the upper guard bar is provided with an upper unlocking groove, and an upper unlocking rod connected to the upper locking pin is passed through the upper locking groove. The rear side surface of the lower lock body is provided with a lower unlocking groove, and a lower unlocking rod connected to the lower locking pin is passed through the lower unlocking groove.

6. The steel structure exterior wall connection structure according to claim 5, characterized in that: The lower unlocking slot is provided with a lower fixing slot.

7. The steel structure exterior wall connection structure according to claim 1, characterized in that: A support bar is arranged in the arc groove, the upper side surface of the support bar is an arc surface, a fan-shaped rotation groove is opened on the rotation fitting surface, and the groove bottom of the fan-shaped rotation groove is an arc shape matching with the upper side surface of the support bar.

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