Self-compensating curtain wall keel connecting device

Abstract

The invention discloses a self-compensation type curtain wall keel connecting device, and relates to the technical field of curtain wall keel connection, the self-compensation type curtain wall keel connecting device comprises a mounting block, a spring positioning pin, an elastic pre-pressing sleeve and a traction extrusion mechanism, a positioning groove is formed in the side, close to a stand column, of the mounting block, and one end of the spring positioning pin is installed in the positioning groove in a matched mode; a positioning hole matched with the other end of the spring positioning pin is formed in the stand column, the spring positioning pin comprises a variable pitch spring, and the elastic pre-pressing sleeve is arranged on the spring positioning pin in a sleeving mode. According to the spring positioning pin, the guide head is allowed to be effectively inserted into the positioning hole of the stand column through the variable-pitch spring, and the installation influence caused by the initial alignment error of the cross beam and the stand column is made up; and meanwhile, the elastic pre-pressing sleeve can expand in the radial direction by means of the extrusion effect in the installation process, so that errors existing in hole groove machining are compensated, the influence possibly generated when the cross beam and the supporting column are welded and fixed subsequently is reduced, and the installation precision and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of curtain wall keel connection, and particularly relates to a self-compensating curtain wall keel connection device. Background Art

[0002] The keel of a curtain wall generally includes columns and crossbeams. When connecting and installing, it is necessary to fixedly weld the columns and crossbeams together. When the columns and crossbeams are fixedly welded, they need to be perpendicular to each other and need to be welded at fixed points. Therefore, it is necessary to first preliminarily fix the relative positions of the columns and crossbeams, and then weld and fix them.

[0003] When initially positioning and fixing the columns and crossbeams of the existing curtain wall keel, ordinary spring pins are generally directly used to initially position the columns and crossbeams. The main method is to drill holes at corresponding positions on the columns and crossbeams, and then make both ends of the spring pin butt against the corresponding holes respectively, so as to realize the initial position positioning of the columns and crossbeams, and then carry out welding.

[0004] The deficiencies of the existing curtain wall keel connection device are as follows: When the columns and crossbeams of the existing curtain wall keel are initially positioned with ordinary spring pins, since it is very difficult to ensure that the hole depth and hole diameter on the columns and crossbeams exactly match the pin size, generally in order to ensure that the spring pin can be effectively inserted into the corresponding hole, it is natural to make the hole size slightly larger than the pin size. Then, such a gap will easily occur, and such a gap will cause the connection between the columns and crossbeams of the keel to be unstable, and it is easy to generate secondary errors during subsequent welding and fixing, thus affecting the installation accuracy. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-compensating curtain wall keel connection device to solve the technical problems in the prior art that the connection stability of the curtain wall keel connection device is poor, which easily leads to secondary errors during subsequent welding and fixing and affects the installation accuracy.

[0006] The technical problems to be solved by the present invention can be achieved through the following technical solutions:

[0007] A self-compensating curtain wall keel connection device includes an installation block, and the installation block is used to connect the crossbeam and column of the curtain wall keel. It further includes:

[0008] A spring positioning pin. A positioning groove is provided on one side of the installation block close to the column. One end of the spring positioning pin is fitted and installed in the positioning groove, and a positioning hole is provided on the column and is matched with the other end of the spring positioning pin. The spring positioning pin includes a variable pitch spring;

[0009] An elastic pre-compression sleeve and a traction and extrusion mechanism, wherein the elastic pre-compression sleeve is sleeved on a spring positioning pin, and an extrusion ring for extruding the elastic pre-compression sleeve is sleeved on one end of the spring positioning pin close to the positioning hole. The traction and extrusion mechanism is arranged on the spring positioning pin, and one end of the traction and extrusion mechanism extends into the mounting block. A control mechanism for controlling the movement of the traction and extrusion mechanism is arranged on the mounting block, and the other end of the traction and extrusion mechanism cooperates with the extrusion ring.

[0010] Preferably, the spring locating pin also includes a mounting column, an intermediate column and a guide head, the variable pitch spring is connected between the mounting column and the intermediate column, the guide head is arranged at an end of the intermediate column away from the variable pitch spring, the mounting column is used to fit into the locating groove, the guide head is used to pass through the locating hole, the elastic pre-compression sleeve is fitted on the intermediate column, the extrusion ring is slidably mounted on the intermediate column, and the extrusion ring is located between the elastic pre-compression sleeve and the guide head.

[0011] Preferably, the traction and extrusion 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, a through hole is provided on the side of the positioning groove close to the cross beam, the guide tube passes through the through hole, and the adjustable locking mechanism is cooperatively arranged 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 an elastic sliding pin, the main steel wire is passed through the inside of the guide tube, the traction slip ring is slidably sleeved on one end of the guide tube passing through the through hole, the end of the guide tube passing through the through hole is provided with a through opening, one end of the main steel wire passes through the through opening and is connected to the traction slip ring, and the elastic sliding pins are provided in two groups, one group of the elastic sliding pins is located on the side of the mounting column away from the variable pitch spring, and the other group of the elastic sliding pins is located on the side of the intermediate column close to the guide head, and each group of the elastic sliding pins is connected to the main steel wire.

[0013] Preferably, each group of the 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. 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 in the guide tube.

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

[0015] Preferably, the screw pushing mechanism includes an adjusting screw and a U-shaped carriage. The U-shaped carriage penetrates through the side wall of the mounting block. The adjusting screw penetrates through the U-shaped carriage and is threadedly connected to the U-shaped carriage. One end of the adjusting screw is rotatably connected to the outer wall of the mounting block, and the U-shaped pressing block is fixedly connected to the U-shaped carriage.

[0016] Preferably, the elastic preloading sleeve includes an outer sleeve and an inner sleeve. The outer diameter of the outer sleeve is larger than the aperture of the positioning hole and smaller than the aperture of the positioning groove. The outer diameter of the inner sleeve is smaller than the aperture 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 body, the outer sleeve is a fluorosilicone rubber material body, and the outer sleeve is provided with honeycomb micropores.

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

[0019] Advantages of the present invention:

[0020] 1. In the present invention, the mounting block at the end of the cross beam is docked with the column through a spring positioning pin. The spring positioning pin relies on the large pitch section of the variable pitch spring to provide high elastic deformation ability in the initial compression stage, allowing the guiding head to effectively insert into the positioning hole of the column, compensating for the installation influence caused by the initial alignment error between the cross beam and the column. When the small pitch section of the variable pitch spring is compressed in the second half, due to the decrease in pitch, the stiffness increases steeply, 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 preloading sleeve can radially expand due to the extrusion effect during installation, thereby compensating for the errors in hole and groove processing, facilitating the stable connection of the spring positioning pin to the cross beam and the column, reducing the possible influence on the subsequent welding and fixing of the cross beam and the column, and improving the installation accuracy and efficiency.

[0021] 2. After the cross beam and the column are initially positioned and docked through the spring positioning pin, the adjusting screw arranged on the mounting block drives the corresponding U-shaped pressing block to extrude the guiding tube by relying on the extrusion of the inclined surface, so that the guiding tube moves axially. In this way, it can drive the guiding head to extrude the arranged elastic preloading sleeve, causing it to expand and fill the gap. At the same time, it also causes the arranged first linkage rod and second linkage rod to fold and protrude, facilitating the shielding at the port of the positioning hole to prevent the spring positioning pin from detaching and ensuring the installation stability.

[0022] 3. When starting to install the spring-positioning pin of the present invention, in order to avoid the elastic preloading sleeve being squeezed and expanded to hinder the installation, the relative displacement between the guide tube and the middle column of the spring-positioning pin is restricted by the provided stop pin. After the preliminary installation is completed, when the U-shaped extrusion block is manipulated to extrude the guide tube, the U-shaped extrusion block first extrudes the provided traction sliding ring through the extrusion inclined surface. The traction sliding ring slides along the guide tube, and the provided stop pin is pulled and stored through the main wire and the auxiliary wire to achieve unlocking, so as to facilitate the subsequent extrusion action. Brief Description of the Drawings

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

[0024] Figure 2 is the schematic cross-sectional structure diagram of the connection between the column and the cross beam in the present invention;

[0025] Figure 3 is the schematic diagram of the structure of the spring-positioning pin in the present invention;

[0026] Figure 4 is Figure 2 the enlarged structure diagram at A in;

[0027] Figure 5 is Figure 4 the enlarged structure diagram at B in;

[0028] Figure 6 is Figure 4 the enlarged structure diagram at C in;

[0029] Figure 7 is the schematic diagram of the structure when the spring-positioning pin in the present invention is preliminarily installed between the positioning groove and the positioning hole;

[0030] Figure 8 is the schematic diagram of the structure of the control mechanism in the present invention;

[0031] Figure 9 is Figure 8 the enlarged structure diagram at D in;

[0032] Figure 10 is the schematic diagram of the relative position distribution of the U-shaped extrusion block and the traction sliding ring in the present invention.

[0033] Description of the Reference Numerals:

[0034] 1. Mounting block; 2. Cross beam; 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 sliding ring; 64. Elastic sliding pin; 641. Connecting spring; 642. Stop pin; 643. Guide wheel; 644. Subordinate steel wire; 7. Positioning groove; 8. Through hole; 9. Positioning hole; 10. Extrusion ring; 11. Linkage expansion part; 111. First linkage rod; 112. Second linkage rod; 12. Elastic preloading sleeve; 121. Outer sleeve; 122. Inner sleeve; 13. Control mechanism; 131. U-shaped sliding frame; 132. Adjusting screw; 133. U-shaped extrusion block. Detailed implementation mode

[0035] The following is a detailed description of the specific implementation mode of the present invention, but it should be understood that the protection scope of the present invention is not limited by the specific implementation mode.

[0036] As Figures 1 - 10 shown, a self-compensating curtain wall keel connection device, the curtain wall keel includes a column 3 and a cross beam 2. The connection device of the present invention is used for preliminary positioning and docking (i.e., temporary fixing) before the column 3 and the cross beam 2 are welded and fixed, so as to avoid rework caused by misalignment during direct welding. The connection device includes a mounting block 1, and the mounting block 1 is used to connect the cross beam 2 and the column 3 of the curtain wall keel. The mounting block 1 can be an integral structure with the cross beam 2, or can be fixedly installed at the end of the cross beam 2 separately by bolts or welding. The connection device also includes a spring positioning pin 4, an elastic preloading sleeve 12 and a traction and extrusion mechanism. A positioning groove 7 is opened on one side of the mounting block 1 close to the column 3, and the positioning grooves 7 are distributed in pairs, with a groove depth of 3 mm, and the inner wall is sprayed with a wear-resistant coating. One end of the spring positioning pin 4 is fitted and installed in the positioning groove 7, and a positioning hole 9 is opened on the column 3 to cooperate with the other end of the spring positioning pin 4. The spring positioning pin 4 includes a variable pitch spring 42. Since the spring positioning pin 4 can be compressed to generate a return force, when the column 3 and the cross beam 2 are docked, the spring positioning pin 4 can be compressed first to generate a return force. When the positioning groove 7 and the positioning hole 9 are aligned, the end of the spring positioning pin 4 will eject through the positioning hole 9 to realize the preliminary positioning of the column 3 and the cross beam 2. And the part of the variable pitch spring 42 close to the positioning hole 9 is a large pitch section with a pitch of 4 mm, which provides high elastic deformation ability in 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 ±3 mm during installation; the part of the variable pitch spring 42 close to the positioning groove 7 is a small pitch section with a pitch of 2 mm. When compressed to the second half, the pitch decreases, resulting in a sharp increase in stiffness, forming a progressive locking force to prevent rebound and loosening caused by vibration after installation; that is, effectively compensating for the influence caused by the position deviation during the initial alignment of the cross beam 2 and the column 3;

[0037] The elastic pre-stressing sleeve 12 is sleeved on the spring positioning pin 4. When the spring positioning pin 4 is docked between the positioning groove 7 and the positioning hole 9, a part of the elastic pre-stressing 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 installation of one end of the spring positioning pin 4 to the positioning groove 7 in the initial state and the other end to be effectively ejected and inserted into the positioning hole 9, the outer diameter of the corresponding position of the elastic pre-stressing 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 close to the positioning hole 9 is sleeved with an extrusion ring 10 for extruding the elastic pre-stressing sleeve 12, and the elastic pre-stressing sleeve 12 can be squeezed by the extrusion ring 10 to cause radial expansion, thereby facilitating the filling of the gap between the compensation spring positioning pin 4 and the positioning groove 7 and the positioning hole 9, ensuring 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 fixation;

[0038] The traction and extrusion mechanism is arranged on the spring positioning pin 4, one end of the traction and extrusion mechanism extends into the mounting block 1, and the mounting block 1 is provided 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 by the control mechanism 13, so that the traction and extrusion mechanism drives the extrusion ring 10 to move horizontally and extrude the elastic pre-compression sleeve 12.

[0039] In some specific embodiments, in combination Figure 3 and Figure 4 As shown, the spring locating pin 4 also includes a mounting column 41, an intermediate column 43 and a guide head 44. The variable pitch spring 42 is connected between the mounting column 41 and the intermediate column 43. The guide head 44 is arranged at one end of the intermediate column 43 away from the variable pitch spring 42. The mounting column 41 is used to fit into the positioning groove 7. The guide head 44 is used to pass through the positioning hole 9. The elastic pre-compression sleeve 12 is fitted on the intermediate column 43. The diameter of the intermediate column 43 near the mounting column 41 is larger than the inner diameter of the elastic pre-compression sleeve 12, so as to prevent the elastic pre-compression sleeve 12 from sliding and falling along the intermediate column 43 toward the direction of the mounting column 41. The extrusion ring 10 is slidably mounted on the intermediate column 43, and the extrusion ring 10 is between the elastic pre-compression 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 completely passes through the positioning hole 9 on the column 3 by relying on the guide head 44, the guide head 44 can be pulled back a certain distance by relying on the traction and extrusion mechanism, and the guide head 44 will squeeze the extrusion ring 10, so that the extrusion ring 10 squeezes the elastic pre-compression sleeve 12, so that the elastic pre-compression sleeve 12 expands radially to compensate for the hole and groove gap.

[0041] In some specific embodiments, such as Figure 4As shown, the traction and extrusion 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. A through hole 8 is provided on the side of the positioning groove 7 close to the cross beam 2. The aperture 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 side of the mounting block 1 close to the cross beam 2 is a hollow body. The adjustable locking mechanism 6 is cooperatively arranged between the guide tube 5 and the spring positioning pin 4. In 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 extrusion effect, thereby driving the guide head 44 and the extrusion ring 10 to squeeze the elastic pre-compression sleeve 12, causing it to expand prematurely and causing installation obstacles, the guide tube 5 is first kept limited relative to the intermediate column 43 by relying on the adjustable locking mechanism 6.

[0042] In some specific embodiments, 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 is inserted into the guide tube 5, and the traction slip ring 63 is slidably sleeved on one end of the guide tube 5 passing through the through hole 8. A through hole 62 is opened at the end of the guide tube 5 passing 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. The end of the guide tube 5 passing through the through hole 8 is also fixedly connected with a stop block for preventing the traction slip ring 63 from falling off. The stop block can pass through the through hole 8. Two groups of elastic sliding pins 64 are provided. One group of elastic sliding pins 64 is located on the side of the mounting column 41 away from the variable pitch spring 42, and the other group of elastic sliding pins 64 is located on the side of the intermediate column 43 close to the guide head 44, and each group of elastic sliding pins 64 is connected to the main steel wire 61.

[0043] Among them, each group 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 relatively. The stop pin 642 is connected to the inner wall of the guide tube 5 through the connecting spring 641. The connecting spring 641 is stretchable. The secondary steel wire 644 is connected between the main steel wire 61 and the stop pin 642. A guide wheel 643 is also installed in the guide tube 5 to guide the secondary steel wire 644 to turn. 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 is not affected by the control mechanism 13 and slides along the guide tube 5, the retaining pins 642 at each position are in the initial state, blocking the corresponding sides of the mounting post 41 and the intermediate post 43. For example, there is a retaining pin 642 on the side of the intermediate post 43 close to the guide head 44, which can prevent the guide tube 5 from driving the guide head 44 to slide relative to the intermediate post 43, and the retaining 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 to make it slide along the guide tube 5 away from the mounting post 41, the traction slip ring 63 pulls the main steel wire 61, and the main steel wire 61 pulls the connected auxiliary steel wire 644. Each auxiliary steel wire 644 pulls the corresponding retaining pin 642 to slide into the guide tube 5 by relying on the steering action of the guide wheel 643. For details, reference can be made to Figure 5 and Figure 6 As shown, in this way, the limit of the guide tube 5 relative to the intermediate post 43 is released. Then, by continuing to rely on the action of the control mechanism 13 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 schemes, in combination 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 cooperated 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 inclined surface is provided on the side of the U-shaped extrusion block 133 close to the traction slip ring 63, and the threaded pushing mechanism is used to push the U-shaped extrusion block 133 to move radially along the guide tube 5.

[0046] Among them, the threaded pushing mechanism includes an adjusting screw 132 and a U-shaped sliding frame 131. The U-shaped sliding frame 131 penetrates the side wall of the mounting block 1 and can slide relatively. The adjusting screw 132 penetrates the U-shaped sliding frame 131 and is threadedly connected to the U-shaped sliding frame 131. One end of the adjusting screw 132 is rotatably connected to the outer wall of the mounting block 1, and the U-shaped extrusion block 133 is fixedly connected to the U-shaped sliding frame 131.

[0047] After the mounting block 1 is connected to the positioning hole 9 on the column 3 through the spring positioning pin 4, rotate the adjusting screw 132, and the adjusting screw 132 drives the U-shaped sliding frame 131 to slide inwardly into the mounting block 1. In this way, the U-shaped sliding frame 131 drives the U-shaped extrusion block 133 to move onto the guide tube 5, and relies on the extrusion action of the extrusion inclined surface to press the traction slip ring 63. The traction slip ring 63 is axially pushed due to the action of the extrusion inclined surface, so it slides along the guide tube 5. And when the traction slip ring 63 slides and stops at the end of the guide tube 5, the extrusion inclined surface can continue to press the traction slip ring 63. At this time, the traction slip ring 63 can drive the guide tube 5 to move axially together.

[0048] In some specific embodiments, the elastic preloading sleeve 12 includes an outer sleeve 121 and an inner sleeve 122. The outer diameter of the outer sleeve 121 is larger than the aperture diameter of the positioning hole 9 and smaller than the aperture diameter of the positioning groove 7. The outer diameter of the inner sleeve 122 is smaller than the aperture 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 guiding head 44 of the spring positioning pin 4 passes through the positioning hole 9, the outer sleeve 121 is located within the positioning groove 7, and a part of it is exposed outside the groove. The inner sleeve 122 is located within the positioning hole 9. When the mounting block 1 is pressed and fitted onto the surface layer of the column 3, the outer sleeve 121 is squeezed and undergoes radial expansion, while the inner sleeve 122 undergoes radial expansion by relying on the squeezing action of the squeezing ring 10.

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

[0050] In some specific embodiments, in combination Figure 6 and Figure 7 As shown, a plurality of linkage expansion members 11 are circumferentially distributed between the guiding head 44 and the squeezing 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 guiding head 44 through a hinge, and the other end is movably connected to the corresponding second linkage rod 112 through a hinge. The end of the second linkage rod 112 away from the first linkage rod 111 is movably connected to the squeezing ring 10 through a hinge.

[0051] Before the guiding tube 5 pulls the guiding head 44, the connected first linkage rod 111 and second linkage rod 112 are not folded and arched. Specifically, reference can be made to Figure 7 , when the guiding tube 5 pulls the guiding head 44 to move closer to the middle column 43, the guiding head 44 first squeezes and pushes the squeezing ring 10 to slide through the first linkage rod 111 and the second linkage rod 112, so as to facilitate squeezing the elastic preloading sleeve 12. When the squeezing ring 10 cannot continue to slide forward, the guiding head 44 can squeeze the first linkage rod 111 and the second linkage rod 112, causing the two to fold and arch. At this time, the end of the first linkage rod 111 connected to the squeezing ring 10 does not enter the positioning hole 9, so it can block the port of the positioning hole 9 close to the inside of the column 3, thus facilitating preventing the spring positioning pin 4 from falling off before the column 3 and the cross beam 2 are welded and fixed.

[0052] It should be noted that a compressible spring can be installed between the squeezing ring 10 and the guiding head 44 to ensure that the force required for the spring to deform is greater than the force required for the elastic preloading sleeve 12 to deform. In this way, it can be ensured that the elastic preloading sleeve 12 is first squeezed and deformed, and then the first linkage rod 111 and the second linkage rod 112 are folded and arched.

[0053] To facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will be briefly described below in combination with a specific application scenario:

[0054] First, one end of the spring positioning pin 4 is installed into the positioning groove 7 on the mounting block 1 at the end of the cross beam 2, and then the cross beam 2 is docked onto the column 3 by relying on the mounting block 1. During this process, it is possible that due to the misalignment of the positioning groove 7 and the positioning hole 9, the guide head 44 at the end of the spring positioning pin 4 and the intermediate column 43 are squeezed, compressing the variable pitch spring 42 and achieving 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 is ejected and inserted into the positioning hole 9 under the resilience of the variable pitch spring 42.

[0055] And during the above installation process, there is a retaining pin 642 on the side of the intermediate column 43 close to the guide head 44, which can prevent the guide tube 5 from driving the guide head 44 to slide relative to the intermediate column 43. The retaining pin 642 on the left side of the mounting column 41 plays a further auxiliary limiting role, preventing the elastic preloading sleeve 12 from being prematurely squeezed and expanded, causing installation obstacles;

[0056] Only when both ends of the spring positioning pin 4 are installed in place, rotate the adjusting screw 132. The adjusting screw 132 then drives the U-shaped sliding frame 131 to slide inwardly into the mounting block 1. In this way, the U-shaped sliding frame 131 drives the U-shaped pressing block 133 to move onto the guide tube 5, and relies on the extrusion action of the inclined surface to pull the sliding ring 63. The sliding ring 63 is then axially pushed due to the inclined surface of the extrusion, and thus slides along the guide tube 5. The sliding ring 63 pulls the main wire 61, and the main wire 61 pulls the connected sub-wires 644. Each sub-wire 644 pulls the corresponding retaining pin 642 to slide and retract into the guide tube 5 by relying on the steering action of the guide wheel 643. In this way, the limit of the guide tube 5 relative to the intermediate column 43 is released;

[0057] When the sliding ring 63 slides and stops at the end of the guide tube 5, the inclined surface of the extrusion can continue to squeeze the sliding ring 63. At this time, the sliding ring 63 can drive the guide tube 5 to move axially horizontally together. The guide tube 5 then pulls the guide head 44 back relative to the intermediate column 43. The guide head 44 first squeezes and pushes the extrusion ring 10 through the first linkage rod 111 and the second linkage rod 112, so as to facilitate the extrusion of the inner sleeve 122 of the elastic preloading sleeve 12, causing it to radially expand and fill the gap in the positioning hole 9. When the mounting block 1 is squeezed and fitted to the surface layer of the column 3, the outer sleeve 121 is squeezed and radially expands to fill the gap in the positioning groove 7;

[0058] When the extrusion ring 10 can no longer slide forward, the guide head 44 can extrude and act on the first linkage rod 111 and the second linkage rod 112, causing the two to fold and arch. At this time, the end of the first linkage rod 111 connected to the extrusion ring 10 does not enter the positioning hole 9, so it can block the port of the positioning hole 9 close to the inside of the column 3, thus facilitating the prevention of the spring positioning pin 4 from falling off before the column 3 and the cross beam 2 are welded and fixed.

[0059] The above-disclosed are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes 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 keel connection device, comprising a mounting block (1), wherein the mounting block (1) is used to connect a crossbeam (2) and a column (3) of a curtain wall keel, characterized in that: Also includes: A spring positioning pin (4), wherein a positioning groove (7) is provided on one side of the mounting block (1) close to the column (3), one end of the spring positioning pin (4) is fitted in the positioning groove (7), and a positioning hole (9) is provided on the column (3) to fit with the other end of the spring positioning pin (4), and the spring positioning pin (4) comprises a variable pitch spring (42); An elastic pre-compression sleeve (12) and a traction and extrusion mechanism, wherein the elastic pre-compression sleeve (12) is sleeved on a spring positioning pin (4), and an extrusion ring (10) for extruding the elastic pre-compression sleeve (12) is sleeved on one end of the spring positioning pin (4) close to the positioning hole (9). The traction and extrusion mechanism is arranged on the spring positioning pin (4), and one end of the traction and extrusion mechanism extends into the mounting block (1). The mounting block (1) is provided with a control mechanism (13) for controlling the movement of the traction and extrusion mechanism, and the other end of the traction and extrusion mechanism cooperates with the extrusion ring (10).

2. A self-compensating curtain wall keel connection device according to claim 1, characterized in that: The spring positioning pin (4) further comprises a mounting column (41), an intermediate column (43) and a guide head (44); the variable pitch spring (42) is connected between the mounting column (41) and the intermediate column (43); the guide head (44) is arranged at one end of the intermediate column (43) away from the variable pitch spring (42); the mounting column (41) is used to fit into the positioning groove (7); the guide head (44) is used to pass through the positioning hole (9); the elastic pre-compression sleeve (12) is fitted on the intermediate column (43); the extrusion ring (10) is slidably fitted on the intermediate column (43), and the extrusion ring (10) is located between the elastic pre-compression sleeve (12) and the guide head (44).

3. A self-compensating curtain wall keel connection device according to claim 2, characterized in that: The traction and extrusion mechanism comprises a guide tube (5) and an adjustable locking mechanism (6); the guide tube (5) sequentially passes through the mounting column (41) and the intermediate column (43) and is fixedly connected to the guide head (44); a through hole (8) is provided on the side of the positioning groove (7) close to the crossbeam (2); the guide tube (5) passes through the through hole (8); and the adjustable locking mechanism (6) is cooperatively arranged between the guide tube (5) and the spring positioning pin (4).

4. A self-compensating curtain wall keel connection device according to claim 3, characterized in that: The adjustable locking mechanism (6) comprises a main steel wire (61), a traction slip ring (63) and an elastic sliding pin (64). The main steel wire (61) is inserted into the guide tube (5). The traction slip ring (63) is slidably sleeved on one end of the guide tube (5) passing through the through hole (8). The end of the guide tube (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 to the traction slip ring (63). Two groups of elastic sliding pins (64) are provided. One group of elastic sliding pins (64) is located on a side of the mounting column (41) away from the variable pitch spring (42), and the other group of elastic sliding pins (64) is located on a side of the intermediate column (43) close to the guide head (44), and each group of elastic sliding pins (64) is connected to the main steel wire (61).

5. The self-compensating curtain wall keel connection device according to claim 4, characterized in that: Each group of the elastic sliding pins (64) includes a stop pin (642), a connecting spring (641) and an auxiliary steel wire (644); the stop pin (642) radially penetrates the side wall of the guide tube (5); the stop pin (642) is connected to the inner wall of the guide tube (5) via the connecting spring (641); the auxiliary steel wire (644) is connected between the main steel wire (61) and the stop pin (642); and a guide wheel (643) for guiding the auxiliary steel wire (644) to turn is also installed in the guide tube (5).

6. The self-compensating curtain wall keel connection device according to claim 4, characterized in that: The control mechanism (13) comprises a U-shaped extrusion block (133) and a threaded push mechanism. The U-shaped extrusion block (133) is aligned and matched with the traction slip ring (63). A side of the U-shaped extrusion block (133) close to the traction slip ring (63) is provided with an extrusion slope. The threaded push mechanism is used to push the U-shaped extrusion block (133) to move radially along the guide tube (5).

7. The self-compensating curtain wall keel connection device according to claim 6, characterized in that: The threaded push mechanism comprises 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); the adjusting screw (132) passes through the U-shaped slide (131) and is threadedly connected to the U-shaped slide (131); one end of the adjusting screw (132) is rotatably connected to the outer wall of the mounting block (1); and the U-shaped extrusion block (133) is fixedly connected to the U-shaped slide (131).

8. The self-compensating curtain wall keel connection device according to claim 1, characterized in that: The elastic pre-compression sleeve (12) comprises an outer sleeve (121) and an inner sleeve (122); the outer diameter of the outer sleeve (121) is larger than the aperture of the positioning hole (9) and smaller than the aperture of the positioning groove (7); the outer diameter of the inner sleeve (122) is smaller than the aperture of the positioning groove (7), and the length of the inner sleeve (122) is larger than the length of the outer sleeve (121).

9. The self-compensating curtain wall keel connection device according to claim 8, characterized in that: The inner sleeve (122) is made of a foamed silicone rubber material, the outer sleeve (121) is made of a fluorosilicone rubber material, and the outer sleeve (121) is provided with honeycomb micropores.

10. The self-compensating curtain wall keel connection device according to claim 2, characterized in that: A plurality of linkage expansion members (11) are circumferentially distributed between the guide head (44) and the extrusion ring (10), each of the linkage expansion members (11) comprising a first linkage rod (111) and a second linkage rod (112), one end of the first linkage rod (111) being movably connected to the guide head (44) via a hinge, and the other end of the first linkage rod (111) being movably connected to the corresponding second linkage rod (112) via a hinge, and the end of the second linkage rod (112) away from the first linkage rod (111) being movably connected to the extrusion ring (10) via a hinge.

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