A self-compensating curtain wall keel connection device

Abstract

This invention discloses a self-compensating curtain wall keel connection device, relating to the field of curtain wall keel connection technology. It includes a mounting block, a spring-loaded positioning pin, an elastic preload sleeve, and a traction and compression mechanism. The mounting block has a positioning groove on the side near the column. One end of the spring-loaded positioning pin is fitted into the positioning groove. The column has a positioning hole that mates with the other end of the spring-loaded positioning pin. The spring-loaded positioning pin includes a variable-pitch spring, and the elastic preload sleeve is fitted onto the spring-loaded positioning pin. This invention's spring-loaded positioning pin, relying on the variable-pitch spring, allows the guide head to effectively insert into the positioning hole of the column, compensating for the installation impact caused by the initial alignment error between the beam and the column. Simultaneously, during installation, the elastic preload sleeve can radially expand due to the compression action, thereby compensating for errors in the hole and groove machining, reducing potential impacts on subsequent welding and fixing of the beam and column, and improving installation accuracy and efficiency.

Description

Technical Field

[0001] This invention relates to the field of curtain wall keel connection technology, and in particular to a self-compensating curtain wall keel connection device. Background Technology

[0002] The keel of a curtain wall generally includes columns and beams. When connecting and installing, the columns and beams need to be fixedly welded together. When fixing and welding the columns and beams, they need to be kept perpendicular to each other and need to be welded at specific points. Therefore, the relative positions of the columns and beams need to be initially fixed first, and then welded to fix them.

[0003] In the initial positioning and fixing of existing curtain wall keel columns and beams, ordinary spring pins are generally used to initially position the columns and beams. The main method is to drill holes at corresponding positions on the columns and beams, and then connect the two ends of the spring pins to the corresponding holes to achieve the initial positioning of the columns and beams, and then weld them.

[0004] The shortcomings of existing curtain wall keel connection devices are as follows: When using ordinary spring pins for initial positioning of existing curtain wall keel columns and beams, it is difficult to ensure that the depth and diameter of the holes drilled on the columns and beams perfectly match the pin size. Generally, in order to ensure that the spring pins can be effectively inserted into the corresponding holes, the hole size naturally needs to be slightly larger than the pin size. This will easily create gaps, which will lead to unstable connections between the keel columns and beams. Secondary errors are likely to occur during subsequent welding and fixing, thus affecting the installation accuracy. Summary of the Invention

[0005] The purpose of this invention is to provide a self-compensating curtain wall keel connection device to solve the technical problem that the connection stability of the existing curtain wall keel connection device is poor, which easily leads to secondary errors during subsequent welding and fixing, affecting the installation accuracy.

[0006] The technical problem to be solved by this invention can be achieved through the following technical solution:

[0007] A self-compensating curtain wall keel connection device includes a mounting block for connecting the horizontal beams and vertical columns of the curtain wall keel, and further includes:

[0008] A spring positioning pin is provided. The mounting block has a positioning groove on the side near the column. One end of the spring positioning pin is fitted into the positioning groove. The column has a positioning hole that fits into the other end of the spring positioning pin. The spring positioning pin includes a variable pitch spring.

[0009] The elastic preload sleeve and the traction extrusion mechanism are provided. The elastic preload sleeve is fitted on a spring positioning pin. An extrusion ring for extruding the elastic preload sleeve is fitted on one end of the spring positioning pin near the positioning hole. The traction extrusion mechanism is set on the spring positioning pin. One end of the traction extrusion mechanism extends into the mounting block. The mounting block is provided with a control mechanism for controlling the movement of the traction extrusion mechanism. The other end of the traction extrusion mechanism cooperates with the extrusion ring.

[0010] Preferably, the spring positioning pin further includes a mounting post, an intermediate post, and a guide head. The variable pitch spring is connected between the mounting post and the intermediate post. The guide head is located at the end of the intermediate post away from the variable pitch spring. The mounting post is used to engage with the positioning groove. The guide head is used to pass through the positioning hole. The elastic preload sleeve is fitted onto the intermediate post. The compression ring is slidably fitted onto the intermediate post, and the compression ring is located between the elastic preload sleeve and the guide head.

[0011] Preferably, the traction and compression mechanism includes a guide tube and an adjustable locking mechanism. The guide tube passes through the mounting column and the intermediate column in sequence and is fixedly connected to the guide head. The positioning groove has a through hole on the side near the crossbeam, through which the guide tube passes. The adjustable locking mechanism is configured between the guide tube and the spring positioning pin.

[0012] Preferably, the adjustable locking mechanism includes a main steel wire, a traction slip ring, and elastic sliding pins. The main steel wire passes through the inside of the guide tube. The traction slip ring is slidably sleeved on one end of the guide tube through the through hole. The end of the guide tube through the through hole has a through opening. One end of the main steel wire passes through the through opening and is connected to the traction slip ring. Two sets of elastic sliding pins are provided. One set of elastic sliding pins is located on the side of the mounting post away from the variable pitch spring, and the other set of elastic sliding pins is located on the side of the intermediate post near the guide head. Each set of elastic sliding pins is connected to the main steel wire.

[0013] Preferably, each set of elastic sliding pins includes a stop pin, a connecting spring, and a secondary steel wire. The stop pin radially penetrates the side wall of the guide tube, and the stop pin is connected to the inner wall of the guide tube through the connecting spring. The secondary steel wire is connected between the main steel wire and the stop pin. A guide wheel for guiding the secondary steel wire to turn is also installed inside the guide tube.

[0014] Preferably, the control mechanism includes a U-shaped extrusion block and a threaded pushing mechanism. The U-shaped extrusion block is aligned and engaged with the traction slip ring. The side of the U-shaped extrusion block near the traction slip ring is provided with an extrusion slope. The threaded pushing mechanism is used to push the U-shaped extrusion block to move radially along the guide tube.

[0015] Preferably, the threaded pushing mechanism includes an adjusting screw and a U-shaped slide, the U-shaped slide passing through the side wall of the mounting block, the adjusting screw passing through the U-shaped slide and threadedly connected to the U-shaped slide, one end of the adjusting screw being rotatably connected to the outer wall of the mounting block, and the U-shaped pressing block being fixedly connected to the U-shaped slide.

[0016] Preferably, the elastic preload sleeve includes an outer sleeve and an inner sleeve. The outer diameter of the outer sleeve is larger than the diameter of the positioning hole and smaller than the diameter of the positioning groove. The outer diameter of the inner sleeve is smaller than the diameter of the positioning groove, and the length of the inner sleeve is greater than the length of the outer sleeve.

[0017] Preferably, the inner sleeve is a foamed silicone rubber material, the outer sleeve is a fluorosilicone material, and the outer sleeve is provided with honeycomb micropores.

[0018] Preferably, a plurality of linkage expansion members are circumferentially distributed between the guide head and the extrusion ring. Each linkage expansion member includes a first linkage rod and a second linkage rod. One end of the first linkage rod is movably connected to the guide head via a hinge, and the other end is movably connected to the corresponding second linkage rod via a hinge. The end of the second linkage rod away from the first linkage rod is movably connected to the extrusion ring via a hinge.

[0019] The beneficial effects of this invention are:

[0020] 1. This invention connects the mounting block at the end of the crossbeam to the column via a spring positioning pin. The spring positioning pin, relying on the large pitch section of the variable pitch spring, provides high elastic deformation capability during the initial compression stage, allowing the guide head to effectively insert into the positioning hole of the column, compensating for the installation impact caused by the initial alignment error between the crossbeam and the column. When the small pitch section of the variable pitch spring is compressed to the latter half, the stiffness increases sharply due to the reduced pitch, forming a progressive locking force to prevent rebound and loosening caused by vibration after installation. At the same time, during the installation process, the elastic preload sleeve can undergo radial expansion due to the squeezing action during installation, thereby compensating for the errors in the hole and groove machining. This facilitates the stable connection of the spring positioning pin to the crossbeam and the column, reducing the potential impact on the subsequent welding and fixing of the crossbeam and the column, and improving installation accuracy and efficiency.

[0021] 2. After the crossbeam and column of this invention are initially positioned and connected by spring positioning pins, the corresponding U-shaped extrusion block is driven by the adjusting screw set on the mounting block. The guide tube is guided by the extrusion inclined surface, causing the guide tube to move axially. This can drive the guide head to extrude the elastic pre-compression sleeve, causing it to expand and fill the gap. At the same time, the first and second linkage rods are folded and protruded, which can be used to cover the port of the positioning hole, preventing the spring positioning pin from falling off and ensuring the stability of the installation.

[0022] 3. When the spring positioning pin is initially installed, in order to avoid the elastic pre-compression sleeve from expanding and obstructing the installation, the relative displacement between the guide tube and the middle column of the spring positioning pin is limited by the set stop pin. After the initial installation is completed, when the U-shaped extrusion block is operated to extrude the guide tube, the U-shaped extrusion block first extrudes the set traction slip ring through the extrusion inclined surface. The traction slip ring slides along the guide tube and is pulled by the main steel wire and the auxiliary steel wire to be stored, thereby unlocking and facilitating subsequent extrusion actions. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the connection between the column and the beam in this invention.

[0025] Figure 3 This is a schematic diagram of the spring positioning pin in this invention;

[0026] Figure 4 yes Figure 2 Enlarged structural diagram at point A;

[0027] Figure 5 yes Figure 4 Enlarged structural diagram at point B;

[0028] Figure 6 yes Figure 4 Enlarged structural diagram at point C;

[0029] Figure 7 This is a schematic diagram of the structure in which the spring positioning pin is initially installed between the positioning groove and the positioning hole in this invention;

[0030] Figure 8 This is a schematic diagram of the control mechanism in this invention;

[0031] Figure 9 yes Figure 8 Enlarged structural diagram at point D;

[0032] Figure 10 This is a schematic diagram of the relative positional distribution of the U-shaped extrusion block and the traction slip ring in this invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Mounting block; 2. Crossbeam; 3. Column; 4. Spring positioning pin; 41. Mounting column; 42. Variable pitch spring; 43. Intermediate column; 44. Guide head; 5. Guide tube; 6. Adjustable locking mechanism; 61. Main steel wire; 62. Through hole; 63. Traction slip ring; 64. Elastic sliding pin; 641. Connecting spring; 642. Stop pin; 643. Guide wheel; 644. Secondary steel wire; 7. Positioning groove; 8. Through hole; 9. Positioning hole; 10. Extrusion ring; 11. Linkage expansion component; 111. First linkage rod; 112. Second linkage rod; 12. Elastic preload sleeve; 121. Outer sleeve; 122. Inner sleeve; 13. Control mechanism; 131. U-shaped slide; 132. Adjusting screw; 133. U-shaped extrusion block. Detailed Implementation

[0035] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0036] like Figures 1-10 As shown, a self-compensating curtain wall keel connection device is disclosed. The curtain wall keel includes columns 3 and beams 2. The connection device of the present invention is used for preliminary positioning and docking, i.e., temporary fixing, before welding and fixing the columns 3 and beams 2, to avoid rework due to misalignment during direct welding. The connection device includes an mounting block 1, which is used to connect the beams 2 and columns 3 of the curtain wall keel. The mounting block 1 can be an integral structure with the beams 2, or it can be fixed to the end of the beams 2 by bolts or welding. The connection device also includes a spring positioning pin 4, an elastic preload sleeve 12, and a traction and compression mechanism. The mounting block 1 has a positioning groove 7 on the side near the column 3, and the positioning grooves 7 are distributed in pairs. The groove depth is 3mm, and the inner wall is sprayed with a wear-resistant coating. One end of the spring positioning pin 4 is fitted into the positioning groove 7. The column 3 has a positioning hole 9 that mates with the other end of the spring positioning pin 4. The pin 4 includes a variable pitch spring 42. Because the spring-positioning pin 4 is compressible and generates a rebound force, it compresses first to generate a rebound force when the column 3 and the crossbeam 2 are joined. Once the positioning groove 7 and the positioning hole 9 are aligned, the end of the spring-positioning pin 4 springs through the positioning hole 9, achieving initial positioning of the column 3 and the crossbeam 2. The portion of the variable pitch spring 42 near the positioning hole 9 has a large pitch of 4mm, providing high elastic deformation capacity during the initial compression stage, allowing the end of the spring-positioning pin 4 inserted into the positioning hole 9 to have an axial displacement of ±3mm during installation. The portion of the variable pitch spring 42 near the positioning groove 7 has a small pitch of 2mm. When compressed to the latter half, the reduced pitch leads to a sharp increase in stiffness, forming a progressive locking force to prevent rebound loosening due to vibration after installation. This effectively compensates for the positional deviation caused by the initial alignment of the crossbeam 2 and the column 3.

[0037] The elastic preload sleeve 12 is fitted onto the spring positioning pin 4. When the spring positioning pin 4 is engaged between the positioning groove 7 and the positioning hole 9, part of the elastic preload sleeve 12 is in the positioning groove 7 and the other part is in the positioning hole 9. It should be noted that, in order to facilitate the initial installation of one end of the spring positioning pin 4 into the positioning groove 7 and the other end into the positioning hole 9, the outer diameter of the corresponding position of the elastic preload sleeve 12 will be slightly smaller than the inner diameter of the positioning groove 7 and the positioning hole 9. The end of the spring positioning pin 4 near the positioning hole 9 is fitted with a compression ring 10 for compressing the elastic preload sleeve 12. The compression ring 10 can compress the elastic preload sleeve 12 to cause radial expansion, thereby facilitating the filling and compensation of the gap between the spring positioning pin 4 and the positioning groove 7 and the positioning hole 9. This ensures the stability of the mounting block 1 when it is initially connected to the column 3 and the beam 2 through the spring positioning pin 4, thereby reducing the installation error that may be caused by subsequent welding and fixing.

[0038] The traction and extrusion mechanism is mounted on the spring positioning pin 4. One end of the traction and extrusion mechanism extends into the mounting block 1. The mounting block 1 is equipped with a control mechanism 13 for controlling the movement of the traction and extrusion mechanism. The other end of the traction and extrusion mechanism extends into the column 3 and cooperates with the extrusion ring 10. The traction and extrusion mechanism is driven to move through the control mechanism 13, thereby causing the traction and extrusion mechanism to drive the extrusion ring 10 to move laterally and extrude the elastic pre-compression sleeve 12.

[0039] In some specific implementation plans, combined with Figure 3 and Figure 4 As shown, the spring positioning pin 4 also includes a mounting post 41, an intermediate post 43, and a guide head 44. A variable pitch spring 42 is connected between the mounting post 41 and the intermediate post 43. The guide head 44 is located at the end of the intermediate post 43 away from the variable pitch spring 42. The mounting post 41 is used to engage with the positioning groove 7. The guide head 44 is used to pass through the positioning hole 9. The elastic preload sleeve 12 is fitted onto the intermediate post 43. The diameter of the end of the intermediate post 43 near the mounting post 41 is larger than the inner diameter of the elastic preload sleeve 12, which helps to prevent the elastic preload sleeve 12 from sliding off and falling off along the intermediate post 43 toward the mounting post 41. The compression ring 10 is slidably fitted onto the intermediate post 43, and the compression ring 10 is located between the elastic preload sleeve 12 and the guide head 44.

[0040] When the end of the spring positioning pin 4 installed in the positioning groove 7 on the mounting block 1 passes through the positioning hole 9 on the column 3 completely by the guide head 44, the guide head 44 can be pulled back a certain distance by the traction and extrusion mechanism. The guide head 44 then extrudes the extrusion ring 10, thereby causing the extrusion ring 10 to extrude the elastic preload sleeve 12, which causes the elastic preload sleeve 12 to expand radially and compensate for the gap between the holes and grooves.

[0041] In some specific implementation plans, such as Figure 4As shown, the traction and compression mechanism includes a guide tube 5 and an adjustable locking mechanism 6. The guide tube 5 passes through the mounting column 41 and the intermediate column 43 in sequence and is fixedly connected to the guide head 44. The positioning groove 7 has a through hole 8 on the side near the crossbeam 2. The diameter of the through hole 8 is smaller than the diameter of the mounting column 41. The guide tube 5 passes through the through hole 8. The mounting block 1 is hollow on the side near the crossbeam 2. The adjustable locking mechanism 6 is set between the guide tube 5 and the spring positioning pin 4. During the process of installing the spring positioning pin 4 into the positioning groove 7 and the positioning hole 9, in order to prevent the guide tube 5 from sliding relative to the intermediate column 43 due to the compression action, which would cause the guide head 44 and the compression ring 10 to compress the elastic pre-compression sleeve 12 and cause it to expand prematurely, thus causing installation obstruction, the adjustable locking mechanism 6 is used to keep the guide tube 5 relatively to the intermediate column 43 under limited position.

[0042] In some specific implementations, the adjustable locking mechanism 6 includes a main steel wire 61, a traction slip ring 63, and an elastic sliding pin 64. The main steel wire 61 passes through the inside of the guide tube 5. The traction slip ring 63 is slidably sleeved on one end of the guide tube 5 that passes through the through hole 8. The guide tube 5 has a through hole 62 at one end that passes through the through hole 8. One end of the main steel wire 61 passes through the through hole 62 and is connected to the traction slip ring 63. A stop block for preventing the traction slip ring 63 from falling off is also fixedly connected to the end of the guide tube 5 that passes through the through hole 8. The stop block can pass through the through hole 8. Two sets of elastic sliding pins 64 are provided. One set of elastic sliding pins 64 is located on the side of the mounting post 41 away from the variable pitch spring 42, and the other set of elastic sliding pins 64 is located on the side of the intermediate post 43 near the guide head 44. Each set of elastic sliding pins 64 is connected to the main steel wire 61.

[0043] Each set of elastic sliding pins 64 includes a stop pin 642, a connecting spring 641, and a secondary steel wire 644. The stop pin 642 radially penetrates the side wall of the guide tube 5 and can slide relative to it. The stop pin 642 is connected to the inner wall of the guide tube 5 through the connecting spring 641, which is stretchable. The secondary steel wire 644 is connected between the main steel wire 61 and the stop pin 642. A guide wheel 643 for guiding the secondary steel wire 644 to turn is also installed inside the guide tube 5. The guide wheel 643 is rotatably connected to the inner wall of the guide tube 5 through a rotating shaft.

[0044] When the traction slip ring 63 slides along the guide tube 5 without being acted upon by the control mechanism 13, the stop pins 642 at each position are in their initial state, blocking the corresponding sides of the mounting post 41 and the intermediate post 43. For example, there is a stop pin 642 on the side of the intermediate post 43 near the guide head 44, which can prevent the guide tube 5 from causing the guide head 44 to slide relative to the intermediate post 43. The stop pin 642 on the left side of the mounting post 41 plays a further auxiliary limiting role. When the control mechanism 13 acts on the traction slip ring 63, causing it to slide along the guide tube 5 away from the mounting post 41, the traction slip ring 63 pulls the main steel wire 61, which in turn pulls the connected auxiliary steel wire 644. Each auxiliary steel wire 644, relying on the steering action of the guide wheel 643, pulls the corresponding stop pin 642 to slide into the guide tube 5. For details, please refer to [reference needed]. Figure 5 and Figure 6 As shown, this releases the restriction of the guide tube 5 relative to the intermediate post 43. Then, by continuing to rely on the control mechanism 13 to act on the guide tube 5, the guide tube 5 can slide relative to the intermediate post 43 to complete the subsequent extrusion action.

[0045] In some specific implementation plans, combined with Figures 8 to 10 As shown, the control mechanism 13 includes a U-shaped extrusion block 133 and a threaded pushing mechanism. The U-shaped extrusion block 133 is aligned and fitted with the traction slip ring 63. The inner width of the U-shaped extrusion block 133 is greater than the outer diameter of the guide tube 5 and less than the outer diameter of the traction slip ring 63. An extrusion slope is provided on the side of the U-shaped extrusion block 133 near the traction slip ring 63. The threaded pushing mechanism is used to push the U-shaped extrusion block 133 to move radially along the guide tube 5.

[0046] The threaded pushing mechanism includes an adjusting screw 132 and a U-shaped slide 131. The U-shaped slide 131 passes through the side wall of the mounting block 1 and can slide relative to it. The adjusting screw 132 passes through the U-shaped slide 131 and is threadedly connected to it. One end of the adjusting screw 132 is rotatably connected to the outer wall of the mounting block 1. The U-shaped pressing block 133 is fixedly connected to the U-shaped slide 131.

[0047] After the mounting block 1 is connected to the positioning hole 9 on the column 3 by the spring positioning pin 4, the adjusting screw 132 is rotated. The adjusting screw 132 drives the U-shaped slide 131 to slide into the mounting block 1. In this way, the U-shaped slide 131 drives the U-shaped extrusion block 133 to move onto the guide tube 5. The extrusion slope pulls the slip ring 63. The slip ring 63 is subjected to axial thrust due to the extrusion slope, and thus slides along the guide tube 5. When the slip ring 63 slides and stops at the end of the guide tube 5, the extrusion slope can continue to extrude the slip ring 63. At this time, the slip ring 63 can drive the guide tube 5 to move laterally along the axis.

[0048] In some specific implementations, the elastic preload sleeve 12 includes an outer sleeve 121 and an inner sleeve 122. The outer diameter of the outer sleeve 121 is larger than the diameter of the positioning hole 9 and smaller than the diameter of the positioning groove 7. The outer diameter of the inner sleeve 122 is smaller than the diameter of the positioning groove 7, and the length of the inner sleeve 122 is greater than the length of the outer sleeve 121. When the guide head 44 of the spring positioning pin 4 passes through the positioning hole 9, the outer sleeve 121 is in the positioning groove 7 and a part of it is exposed outside the groove. The inner sleeve 122 is in the positioning hole 9. When the mounting block 1 is pressed and attached to the surface of the column 3, the outer sleeve 121 is compressed and expands radially, while the inner sleeve 122 expands radially due to the compression action of the compression ring 10.

[0049] It should be noted that the inner sleeve 122 is made of foamed silicone rubber to absorb installation deviations and vibration impacts, while the outer sleeve 121 is made of fluorosilicone to reduce sliding wear with the hole wall; and the outer sleeve 121 is provided with honeycomb micropores to allow local deformation and avoid stress concentration that leads to plastic deformation of the hole wall.

[0050] In some specific implementation plans, combined with Figure 6 and Figure 7 As shown, a plurality of linkage expansion members 11 are circumferentially distributed between the guide head 44 and the extrusion ring 10. Each linkage expansion member 11 includes a first linkage rod 111 and a second linkage rod 112. One end of the first linkage rod 111 is movably connected to the guide head 44 via a hinge, and the other end is movably connected to the corresponding second linkage rod 112 via a hinge. The end of the second linkage rod 112 away from the first linkage rod 111 is movably connected to the extrusion ring 10 via a hinge.

[0051] Before the guide tube 5 pulls the guide head 44, the connected first linkage rod 111 and second linkage rod 112 are not folded or arched. (See reference for details.) Figure 7 When the guide tube 5 pulls the guide head 44 to move closer to the intermediate column 43, the guide head 44 first pushes the compression ring 10 to slide through the first linkage rod 111 and the second linkage rod 112, so as to facilitate the compression of the elastic pre-compression sleeve 12. When the compression ring 10 can no longer slide forward, the guide head 44 can squeeze the first linkage rod 111 and the second linkage rod 112, so that the two fold and arch. At this time, the end of the first linkage rod 111 connected to the compression ring 10 does not enter the positioning hole 9, so it can block the port of the positioning hole 9 near the inside of the column 3, so as to prevent the spring positioning pin 4 from falling off before the column 3 and the crossbeam 2 are welded and fixed.

[0052] It should be noted that a compressible spring can be installed between the compression ring 10 and the guide head 44 to ensure that the force required for the spring deformation is greater than the force required for the elastic preload sleeve 12 deformation. This ensures that the elastic preload sleeve 12 is compressed and deformed first, and then the first linkage rod 111 and the second linkage rod 112 are folded and arched.

[0053] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0054] First, install one end of the spring positioning pin 4 into the positioning groove 7 on the mounting block 1 at the end of the crossbeam 2. Then, make the crossbeam 2 connect to the column 3 by relying on the mounting block 1. During this process, the guide head 44 at the end of the spring positioning pin 4 and the intermediate column 43 may be squeezed due to misalignment of the positioning groove 7 and the positioning hole 9, which will compress the variable pitch spring 42 and achieve contraction. When the positioning groove 7 and the positioning hole 9 coincide and align, the guide head 44 at the end of the spring positioning pin 4 will be ejected into the positioning hole 9 under the action of the rebound force of the variable pitch spring 42.

[0055] Furthermore, during the above installation process, there is a stop pin 642 on the side of the intermediate column 43 near the guide head 44, which can prevent the guide tube 5 from causing the guide head 44 to slide relative to the intermediate column 43. The stop pin 642 on the left side of the installation column 41 plays a further auxiliary limiting role, preventing the elastic pre-compression sleeve 12 from being squeezed and expanding in advance, causing installation obstacles.

[0056] Once both ends of the spring positioning pin 4 are in place, rotate the adjusting screw 132. The adjusting screw 132 will drive the U-shaped slide 131 to slide into the mounting block 1. In this way, the U-shaped slide 131 will drive the U-shaped extrusion block 133 to move onto the guide tube 5. The extrusion slope will then pull the slip ring 63. The slip ring 63 will be subjected to axial thrust due to the extrusion slope, and thus slide along the guide tube 5. The slip ring 63 will then pull the main steel wire 61, which will in turn pull the connected secondary steel wire 644. Each secondary steel wire 644 will pull the corresponding stop pin 642 to slide into the guide tube 5 by the steering action of the guide wheel 643. This will release the guide tube 5 from the limit relative to the intermediate column 43.

[0057] When the traction slip ring 63 slides and stops at the end of the guide tube 5, the extrusion slope can continue to extrude the traction slip ring 63. At this time, the traction slip ring 63 can drive the guide tube 5 to move laterally along the axis. The guide tube 5 will pull back the guide head 44 relative to the intermediate column 43. The guide head 44 first extrudes and pushes the extrusion ring 10 to slide through the first linkage rod 111 and the second linkage rod 112, so as to extrude the inner sleeve 122 of the elastic pre-compression sleeve 12, so that it expands radially to fill the gap in the positioning hole 9. When the mounting block 1 is extruded and attached to the surface of the column 3, the outer sleeve 121 is extruded and expands radially to fill the gap in the positioning groove 7.

[0058] When the compression ring 10 can no longer slide forward, the guide head 44 can compress the first linkage rod 111 and the second linkage rod 112, causing them to fold and arch. At this time, the end of the first linkage rod 111 connected to the compression ring 10 does not enter the positioning hole 9, so it can block the port of the positioning hole 9 near the inside of the column 3, thereby preventing the spring positioning pin 4 from falling off before the column 3 and the crossbeam 2 are welded and fixed.

[0059] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A self-compensating curtain wall profile connection device comprising a mounting block (1) for connecting a cross beam (2) and a vertical column (3) of a curtain wall profile, characterized in that, Also include: Spring positioning pin (4), the mounting block (1) is close to the side of the column (3) is provided with a positioning slot (7), the spring positioning pin (4) one end is fitted in the positioning slot (7), the column (3) is provided with the positioning hole (9) matched with the other end of spring positioning pin (4), the spring positioning pin (4) includes variable pitch spring (42); Elastic pre-pressing sleeve (12) and traction extrusion mechanism, the elastic pre-pressing sleeve (12) is set on the spring positioning pin (4), the spring positioning pin (4) is set with extrusion ring (10) for extruding elastic pre-pressing sleeve (12) on the one end close to the positioning hole (9), the traction extrusion mechanism is arranged on the spring positioning pin (4), one end of the traction extrusion mechanism extends into the mounting block (1), the mounting block (1) is provided with control mechanism (13) for controlling the movement of traction extrusion mechanism, the other end of the traction extrusion mechanism is matched with the extrusion ring (10); The spring positioning pin (4) further includes installation column (41), intermediate column (43) and guide head (44), the variable pitch spring (42) is connected between the installation column (41) and the intermediate column (43), the guide head (44) is arranged on the one end of the intermediate column (43) away from the variable pitch spring (42), the installation column (41) is used for being matched and clamped into the positioning slot (7), the guide head (44) is used for passing through the positioning hole (9), the elastic pre-pressing sleeve (12) is matched and set on the intermediate column (43), the extrusion ring (10) is slidably set on the intermediate column (43), and the extrusion ring (10) is between the elastic pre-pressing sleeve (12) and the guide head (44); The traction extrusion mechanism includes guide pipe (5) and adjustable locking mechanism (6), the guide pipe (5) penetrates the installation column (41) and the intermediate column (43) in turn, and is fixedly connected with the guide head (44), the positioning slot (7) is provided with a through hole (8) on the side close to the cross beam (2), the guide pipe (5) passes through the through hole (8), and the adjustable locking mechanism (6) is matched and arranged between the guide pipe (5) and the spring positioning pin (4).

2. A self-compensating curtain wall furring connection device according to claim 1, characterized in that, The adjustable locking mechanism (6) includes main steel wire (61), traction sliding ring (63) and elastic sliding pin (64), the main steel wire (61) is arranged in the guide pipe (5), the traction sliding ring (63) is slidably set on the one end of the guide pipe (5) passing through the through hole (8), the one end of the guide pipe (5) passing through the through hole (8) is provided with a through hole (62), one end of the main steel wire (61) passes through the through hole (62) and is connected with the traction sliding ring (63), the elastic sliding pin (64) is provided with two groups, one group of the elastic sliding pin (64) is on the side of the installation column (41) away from the variable pitch spring (42), the other group of the elastic sliding pin (64) is on the side of the intermediate column (43) close to the guide head (44), and each group of the elastic sliding pin (64) is connected with the main steel wire (61).

3. A self-compensating curtain wall stud connector device according to claim 2, wherein, Each of the elastic sliding pins (64) comprises a blocking pin (642) radially penetrating the sidewall of the guide tube (5), a connecting spring (641) connecting the blocking pin (642) with the inner wall of the guide tube (5), and a secondary steel wire (644) connected between the main steel wire (61) and the blocking pin (642), and a guide wheel (643) is further installed in the guide tube (5) for guiding the turning of the secondary steel wire (644).

4. The self-compensating curtain wall stud connector set forth in claim 2, wherein, The control mechanism (13) comprises a U-shaped extrusion block (133) and a threaded pushing mechanism, the U-shaped extrusion block (133) is aligned with the traction sliding ring (63), and an extrusion inclined surface is arranged on the side of the U-shaped extrusion block (133) close to the traction sliding ring (63), and the threaded pushing mechanism is used for pushing the U-shaped extrusion block (133) to move radially along the guide tube (5).

5. A self-compensating curtain wall stud connector device according to claim 4, wherein, The threaded pushing mechanism comprises an adjusting screw (132) and a U-shaped slide (131), the U-shaped slide (131) penetrates the sidewall of the mounting block (1), the adjusting screw (132) penetrates the U-shaped slide (131) and is threadedly connected with the U-shaped slide (131), one end of the adjusting screw (132) is rotationally connected to the outer wall of the mounting block (1), and the U-shaped extrusion block (133) is fixedly connected with the U-shaped slide (131).

6. The self-compensating curtain wall stud connector set forth in claim 1, wherein, The elastic pre-pressing sleeve (12) comprises an outer sleeve (121) and an inner sleeve (122), the outer diameter of the outer sleeve (121) is greater than the hole diameter of the positioning hole (9) and smaller than the hole diameter of the positioning groove (7), the outer diameter of the inner sleeve (122) is smaller than the hole diameter of the positioning groove (7), and the length of the inner sleeve (122) is greater than the length of the outer sleeve (121).

7. A self-compensating curtain wall stud connector device according to claim 6, wherein, The inner sleeve (122) is a foamed silicone rubber material body, the outer sleeve (121) is a fluorosilicone rubber material body, and the outer sleeve (121) is provided with honeycomb micropores.

8. The self-compensating curtain wall stud connector set forth in claim 1, wherein, A plurality of linkage expansion members (11) are further circumferentially distributed between the guide head (44) and the extrusion ring (10), each of the linkage expansion members (11) comprises a first linkage rod (111) and a second linkage rod (112), one end of the first linkage rod (111) is movably connected with the guide head (44) through a hinge, the other end of the first linkage rod (111) is movably connected with the corresponding second linkage rod (112) through a hinge, and one end of the second linkage rod (112) away from the first linkage rod (111) is movably connected with the extrusion ring (10) through a hinge.

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