Connecting device for building glass curtain wall

Abstract

The invention relates to the technical field of glass curtain walls, and discloses a connecting device for building glass curtain walls, which comprises a cross beam, stand columns are arranged at two ends of the cross beam, the cross beam is of a hollow structure, first connecting mechanisms are arranged in the two ends of the cross beam, and each first connecting mechanism comprises a first connecting seat. By arranging the cross beam with the first connecting mechanism, correspondingly arranging the second connecting mechanism at the stand column, and arranging the pre-limiting pin, the limiting column and the guide rod at the first connecting mechanism, the cross beam can be quickly pre-fixed with the stand column through the pre-limiting pin in the initial stage of installation; and then the first connecting mechanisms at the two ends of the cross beam only need to be adjusted through the two locking bolts, connection of the first connecting mechanisms and the second connecting mechanisms can be completed, and compared with an existing corner connector connection mode, connection of the cross beam and the stand column can be completed through a small number of bolts in the technical scheme, and more efficiency and convenience are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of glass curtain walls, in particular to a connecting device for building glass curtain walls. Background Art

[0002] As the building's external protective structure, curtain walls have the functions of sheltering from wind and rain, letting in light and allowing views through, sound insulation and noise reduction, and heat insulation. They are the most direct appearance of modern construction projects. According to different structures, glass curtain walls can be divided into: frame-supported glass curtain walls, full-glass curtain walls, and point-supported glass curtain walls. Simply put, frame-supported glass curtain walls are composed of metal frames and glass panels, point-supported glass curtain walls are composed of glass panels, point-supporting devices, and supporting structures, and full-glass curtain walls are composed of glass ribs and glass panels.

[0003] The existing frame-supported glass curtain wall is mainly connected to the wall through a metal frame. Therefore, in a broad sense, the metal frame can be regarded as a connector between the glass panel and the wall. The most basic metal frame is a metal frame composed of columns and beams. In the prior art, the columns and beams are generally fixed by bolts or welding. For some glass curtain walls with higher heights, it is inconvenient to fix them by welding. Therefore, bolt fixing is more widely used in the construction process of frame-supported glass curtain walls. Under normal circumstances, the columns and beams are not directly fixed by bolts, but are fixed by various connecting angle codes and bolts. A large number of bolts and nuts are required in the fixing process, and the installation efficiency is low. Summary of the invention

[0004] The present invention provides a connecting device for a building glass curtain wall, which has the beneficial effect of convenient installation and solves the problem mentioned in the above background technology that the columns and beams cannot be directly fixed by bolts, but are fixed by various connecting angle codes in combination with bolts, a large number of bolts and nuts are needed in the fixing process, and the installation efficiency is low.

[0005] The present invention provides the following technical solution: a connecting device for a building glass curtain wall, comprising a crossbeam, both ends of the crossbeam are provided with columns, the crossbeam is a hollow structure, and both ends of the crossbeam are provided with a first connecting mechanism, the first connecting mechanism comprises a first connecting seat, a fixing groove is provided in the first connecting seat, and a cover plate is provided at one end of the fixing groove, and the cover plate is detachably connected to the first connecting seat;

[0006] A pre-limiting pin is provided on the cover plate, and the pre-limiting pin is elastically connected to the cover plate through a first spring. A movable seat and a fixed plate are provided in the fixed groove, and the movable seat is elastically connected to the cover plate through a second spring. A guide block is provided at one end of the movable seat, and a limiting column is provided on the movable seat. One end of the limiting column passes through the cover plate, and one end of the guide block is provided with an inclined surface. The fixed plate is fixedly connected to the first connecting seat, and a threaded groove is provided on the fixing plate. A locking bolt is provided on one side of the beam, and one end of the locking bolt passes through the beam and is screwed to the threaded groove. A glass fixing groove for accommodating glass is provided on the beam, and a second connecting mechanism for connecting with the first connecting mechanism is provided on the column.

[0007] As an optional solution of the connecting device for a building glass curtain wall described in the present invention, a guide rod is provided on the movable seat, the size of the guide rod is the same as that of the pre-limiting pin, and the guide rod and the pre-limiting pin are symmetrically arranged on both sides of the limiting column.

[0008] As an optional solution of the connection device for a building glass curtain wall described in the present invention, the second connection mechanism includes a second connection seat, the second connection seat is provided with a first socket, and the size of the first socket matches the limit column, and second sockets are provided on both sides of the first socket.

[0009] As an optional solution of the connecting device for a building glass curtain wall described in the present invention, the outer side of the movable seat is provided with a limiting convex rib, the inner wall of the beam is provided with a groove that matches the limiting convex rib, and the movable seat is detachably connected to the beam by bolts.

[0010] As an optional solution of the connection device for a building glass curtain wall described in the present invention, an extension column is provided on one side of the pre-limiting pin, an extension block is provided on one side of the limit column, the extension block is elastically connected to the limit column through a limit spring, and an inclined surface is provided on one side of the extension block.

[0011] As an optional solution of the connecting device for a building glass curtain wall described in the present invention, guide grooves are symmetrically provided on the columns, and the guide grooves are matched with the guide rods.

[0012] As an optional solution of the connecting device for a building glass curtain wall of the present invention, wherein: a sealing block is provided on the cover plate, the sealing block is T-shaped, and the sealing block is slidably connected to the cover plate, and a rubber pad is provided at one end of the sealing block, and the size of the rubber pad matches the guide groove;

[0013] When the movable seat moves toward the cover plate, it contacts the density block, and the sealing block drives the rubber pad to be inserted into the guide groove to seal the guide groove.

[0014] As an optional solution of the connection device for a building glass curtain wall described in the present invention, wherein: a first limiting protrusion is provided at the tail of the pre-limiting pin, a limiting plate is provided in the movable seat, the limiting plate is elastically connected to the movable seat through a rebound spring, and a second limiting protrusion for limiting the first limiting protrusion is provided on one side of the limiting plate, and a slope is provided on one side of the second limiting protrusion.

[0015] As an optional solution of the connecting device for a building glass curtain wall described in the present invention, a movable pin is provided at one end of the beam away from the locking bolt, and the position of the movable pin is opposite to the limiting plate, a first opening for the movable pin to enter and exit is provided on the first connecting seat, and the first opening is interference fit with the movable pin, and an extension plate is provided on one side of the column, and the position of the extension plate is opposite to the movable pin.

[0016] As an optional solution of the connecting device for a building glass curtain wall described in the present invention, the crossbeam is provided with a second opening for the movable pin to enter and exit, the movable pin is provided with a third protrusion, the crossbeam is provided with a notch that fits with the third protrusion, and one end of the notch is connected to the second opening.

[0017] The present invention has the following beneficial effects:

[0018] 1. A connecting device for a building glass curtain wall is provided with a crossbeam with a first connecting mechanism. Correspondingly, a second connecting mechanism is provided at the column. A pre-limiting pin, a limiting column and a guide rod are provided at the first connecting mechanism. In the initial stage of installation, the crossbeam can be quickly pre-fixed with the column through the pre-limiting pin. Subsequently, only the first connecting mechanism at both ends of the crossbeam needs to be adjusted respectively through two locking bolts to complete the connection between the first connecting mechanism and the second connecting mechanism. Compared with the existing connection method through angle codes, the technical solution uses a small number of bolts to complete the connection between the crossbeam and the column, which is more efficient and convenient.

[0019] 2. A connecting device for a building glass curtain wall is provided with a pre-limiting pin with an extension column. Correspondingly, an extension block is provided on the limit column. The extension block is elastically connected to the limit column. When the limit column moves toward the cover plate for the first time under the drive of the movable seat, the inclined surface on the extension block conflicts with the extension column. At this time, the extension block overcomes the resistance of the limit spring and retracts into the limit column under the influence of the inclined surface. When the crossbeam needs to be disassembled, it is only necessary to unscrew the locking bolt. After the locking bolt is lost, the movable seat returns to its original position under the push of the second spring. During this process, the side of the extension block without the inclined surface conflicts with the extension column, and then the pre-limiting pin is pulled back to its original position through the extension column. In this way, the clamping connection between the pre-limiting pin and the second connecting mechanism is released, and disassembly is more convenient.

[0020] 3. The connecting device for a building glass curtain wall is provided with a cover plate with a sealing block, and a rubber pad is provided on the sealing block. The size of the rubber pad matches the guide groove. When the movable seat moves toward the cover plate, the sealing block can be pushed to move, thereby indirectly prompting the rubber pad to be inserted into the guide groove to achieve the purpose of sealing the guide groove, thereby solving the problem that rainwater can easily enter the interior of the beam or column through the guide groove, and effectively extending the service life of the device.

[0021] 4. A connecting device for a building glass curtain wall is provided with a movable seat with a limit plate, the limit plate is elastically connected to the movable seat, a second limit protrusion is provided on the limit plate, and correspondingly, a first limit protrusion is provided on the pre-limit pin. In the initial stage of installation, the second limit protrusion is clamped together with the first limit protrusion, and the pre-limit pin is in a semi-exposed state on the cover plate. In this way, during installation, the pre-limit pin will not conflict with the column due to excessive exposure. A movable pin is installed on the beam. When the beam moves to a certain position, the movable pin conflicts with the extension plate on the column, and then moves toward the inside of the beam, thereby prompting the limit plate to overcome the resistance of the rebound spring and move. At this time, the second limit protrusion is separated from the first limit protrusion, and the pre-limit pin is further extended under the drive of the first spring. The technical solution limits the pre-limit pin by setting a limit plate, which effectively reduces the installation difficulty of the beam in the initial stage of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the column structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the crossbeam structure of the present invention.

[0025] Figure 4 It is a schematic diagram of the internal structure of the first connecting socket of the present invention.

[0026] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure in the middle.

[0027] Figure 6 It is a schematic diagram of the internal structure of the limiting column of the present invention.

[0028] Figure 7 It is the front view of the movable pin of the present invention.

[0029] Figure 8 It is a schematic diagram of the connection structure between the limit plate and the pre-limit pin of the present invention.

[0030] In the figure: 1, beam; 101, second opening; 102, notch; 103, groove; 2, column; 201, guide groove; 202, extension plate; 3, first connecting seat; 301, fixed groove; 302, cover plate; 303, pre-limiting pin; 304, first spring; 305, movable seat; 306, fixed plate; 307, second spring; 308, guide block; 309, limit column; 3010, threaded groove; 3011, guide rod; 30 12. Limiting rib; 3013. Extension column; 3014. Extension block; 3015. Limiting spring; 3016. First limiting protrusion; 3017. First opening; 4. Locking bolt; 5. Glass fixing groove; 6. Second connecting seat; 601. First plug hole; 602. Second plug hole; 7. Sealing block; 701. Rubber pad; 8. Limiting plate; 801. Rebound spring; 802. Second limiting protrusion; 9. Movable pin; 901. Third protrusion. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] For example, see Figures 1 to 8 The present invention discloses a connecting device for a building glass curtain wall, comprising a cross beam 1, both ends of the cross beam 1 are provided with upright posts 2, the cross beam 1 is a hollow structure, and both ends of the cross beam 1 are provided with a first connecting mechanism, the first connecting mechanism comprises a first connecting seat 3, a fixing groove 301 is provided in the first connecting seat 3, and a cover plate 302 is provided at one end of the fixing groove 301, and the cover plate 302 is detachably connected to the first connecting seat 3;

[0033] A pre-limiting pin 303 is provided on the cover plate 302, and the pre-limiting pin 303 is elastically connected to the cover plate 302 through a first spring 304. A movable seat 305 and a fixed plate 306 are provided in the fixing groove 301, and the movable seat 305 is elastically connected to the cover plate 302 through a second spring 307. A guide block 308 is provided at one end of the movable seat 305, and a limiting column 309 is provided on the movable seat 305, one end of the limiting column 309 passes through the cover plate 302, and one end of the guide block 308 is provided with an inclined surface, the fixing plate 306 is fixedly connected to the first connecting seat 3, and a threaded groove 3010 is provided on the fixing plate 306, a locking bolt 4 is provided on one side of the crossbeam 1, one end of the locking bolt 4 passes through the crossbeam 1 and is screwed to the threaded groove 3010, a glass fixing groove 5 for accommodating glass is provided on the crossbeam 1, and a second connecting mechanism for connecting with the first connecting mechanism is provided on the column 2;

[0034] A guide rod 3011 is provided on the movable seat 305 . The size of the guide rod 3011 is the same as that of the pre-limiting pin 303 . The guide rod 3011 and the pre-limiting pin 303 are symmetrically arranged on both sides of the limiting column 309 .

[0035] The second connection mechanism includes a second connection seat 6 , on which a first plug hole 601 is disposed, and the size of the first plug hole 601 matches the limiting column 309 , and second plug holes 602 are disposed on both sides of the first plug hole 601 .

[0036] By setting a first connection mechanism at the crossbeam 1, correspondingly, a second connection mechanism is set at the column 2, and a pre-limiting pin 303, a limiting column 309 and a guide rod 3011 are set at the first connection mechanism. Under normal circumstances, the limiting column 309 and the guide rod 3011 are retracted into the movable seat 305, and the pre-limiting pin 303 is elastically connected to the cover plate 302, and one end thereof extends out from the cover plate 302. A guide groove 201 that matches the size of the pre-limiting pin 303 and the guide rod 3011 is opened on the column 2. During installation, the pre-limiting pin 303 is aligned with the guide groove 201, and then the crossbeam 1 is pushed horizontally, and the pre-limiting pin 303 slides along the guide groove 201. When reaching the predetermined position, the pre-limiting pin 303 is further popped out from the movable seat 305 under the push of the movable pin 9, and then as the crossbeam 1 moves, the pre-limiting pin 303 is plugged into the second plug hole 602 corresponding to its position, thus completing the preliminary pre-fixation;

[0037] After the pre-fixing is completed, a locking bolt 4 is installed on the beam 1. The locking bolt 4 is screwed to the beam 1 through a thread. The locking bolt 4 is rotated. Under the action of the thread, the locking bolt 4 moves toward the inside of the beam 1. During the movement, the locking bolt 4 collides with the inclined surface of the guide block 308 at the tail of the movable seat 305, thereby pushing the movable seat 305 and the guide block 308 to move toward the cover plate 302. Driven by the movable seat 305, the limit column 309 and the guide rod 3011 extend out, the limit column 309 is inserted into the first socket 601, and the guide rod 3011 is inserted into the second socket 602 corresponding to its position. In this way, the connection between the beam 1 and the column 2 can be quickly completed through the pre-limiting pin 303, the guide rod 3011 and the limit column 309, which is convenient and quick.

[0038] Compared with the existing method of connecting by angle code, this technical solution can complete the connection between the beam 1 and the column 2 with a small number of bolts, which is more efficient and convenient.

[0039] The locking bolt 4 will finally be screwed together with the fixing plate 306 under the action of the thread groove 3010, and the guide rod 3011 can guide the movable seat 305 during its movement, so that the movable seat 305 can move more smoothly.

[0040] Example 2: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 8 The outer side of the movable seat 305 is provided with a limiting convex rib 3012, and the inner wall of the beam 1 is provided with a groove 103 that fits with the limiting convex rib 3012. The movable seat 305 is detachably connected to the beam 1 by bolts.

[0041] An extension column 3013 is provided on one side of the pre-limiting pin 303 , an extension block 3014 is provided on one side of the limiting column 309 , the extension block 3014 is elastically connected to the limiting column 309 via a limiting spring 3015 , and an inclined surface is provided on one side of the extension block 3014 .

[0042] In order to make the disassembly of the crossbeam 1 more convenient, the present technical solution sets an extension column 3013 on the pre-limiting pin 303, and correspondingly, sets an extension block 3014 on the limiting column 309, and the extension block 3014 is elastically connected to the limiting column 309. When the limiting column 309 moves toward the cover plate 302 for the first time under the drive of the movable seat 305, the inclined surface on the extension block 3014 conflicts with the extension column 3013. At this time, the extension block 3014 overcomes the resistance of the limiting spring 3015 and shrinks due to the influence of the inclined surface. The movable seat 305 is pushed into the limiting column 309. When the beam 1 needs to be disassembled, it is only necessary to unscrew the locking bolt 4. After the locking bolt 4 loses its limiting effect, the movable seat 305 returns to its original position under the push of the second spring 307. During this process, the side of the extension block 3014 without the inclined surface contacts the extension column 3013, and then the pre-limiting pin 303 is pulled back to its original position through the extension column 3013. In this way, the pre-limiting pin 303 is released from the clamping connection with the second connecting mechanism. At this time, the beam 1 can be directly removed, and disassembly is more convenient.

[0043] The movable seat 305 is detachably connected to the cross beam 1 by bolts. A limiting rib 3012 is provided on the outer side of the movable seat 305. Correspondingly, a groove 103 matching the limiting rib 3012 is provided on the inner wall of the cross beam 1. During installation, the movable seat 305 is inserted into the cross beam 1. The presence of the limiting rib 3012 and the groove 103 can limit the movable seat 305, and the fixing effect is better.

[0044] Example 3: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 8 The column 2 is symmetrically provided with guide grooves 201 , and the guide grooves 201 are matched with the guide rods 3011 .

[0045] The cover plate 302 is provided with a sealing block 7, which is T-shaped and slidably connected to the cover plate 302. A rubber pad 701 is provided at one end of the sealing block 7, and the size of the rubber pad 701 matches the guide groove 201.

[0046] When the movable seat 305 moves toward the cover plate 302 , it contacts the sealing block 7 . The sealing block 7 drives the rubber pad 701 to be inserted into the guide groove 201 to seal the guide groove 201 .

[0047] A first limiting protrusion 3016 is provided at the tail of the pre-limiting pin 303, and a limiting plate 8 is provided in the movable seat 305. The limiting plate 8 is elastically connected to the movable seat 305 through a rebound spring 801, and a second limiting protrusion 802 for limiting the first limiting protrusion 3016 is provided on one side of the limiting plate 8, and a slope is provided on one side of the second limiting protrusion 802.

[0048] By providing a guide groove 201 on the column 2, the installation of the beam 1 can be made more convenient. However, the existence of the guide groove 201 allows rainwater to enter the inside of the beam 1 or the column 2 through the guide groove 201, increasing the corrosion risk of the entire mechanism. For this reason, the present technical solution provides a movable sealing block 7 on the cover plate 302, and a rubber pad 701 is provided on the sealing block 7. The size of the rubber pad 701 matches the guide groove 201. When the movable seat 305 moves toward the cover plate 302, the sealing block 7 can be pushed to move, thereby indirectly prompting the rubber pad 701 to be inserted into the guide groove 201, so as to achieve the purpose of sealing the guide groove 201, thereby effectively extending the service life of the device.

[0049] Under normal circumstances, the pre-limit pin 303 will be fully extended from the cover plate 302 under the push of the first spring 304. In this way, during installation, the existence of the pre-limit pin 303 will interfere with the movement of the crossbeam 1. The pre-limit pin 303 needs to be pushed into the cover plate 302 before it can be inserted into the guide groove 201, which increases the inconvenience of installation. For this reason, the technical solution provides a limit plate 8 inside the movable seat 305, and the limit plate 8 is elastically connected to the movable seat 305. A second limit protrusion 802 is provided on the limit plate 8, and correspondingly, a first limit protrusion 3016 is provided on the pre-limit pin 303. In the initial stage of installation, the second limit protrusion 802 is snapped together with the first limit protrusion 3016. At this time, the pre-limit pin 303 is in a semi-exposed state on the cover plate 302. In this way, during installation, the pre-limit pin 303 will not be In order to prevent the exposed part from being too long and colliding with the column 2, the pre-limiting pin 303 is then moved driven by the crossbeam 1. A movable pin 9 is installed on the crossbeam 1. When the crossbeam 1 moves to a certain position, the movable pin 9 collides with the extension plate 202 on the column 2, and then moves toward the inside of the crossbeam 1. During this process, the movable pin 9 collides with the limit plate 8, prompting the limit plate 8 to overcome the resistance of the rebound spring 801 and move. At this time, the second limit protrusion 802 is separated from the first limit protrusion 3016, and the pre-limiting pin 303 is further extended from the cover plate 302 under the push of the first spring 304. In this way, when the pre-limiting pin 303 reaches the position of the second plug hole 602, it can have enough length to be inserted into the second plug hole 602. The technical solution limits the pre-limiting pin 303 by setting the limit plate 8, which effectively reduces the installation difficulty of the crossbeam 1 in the initial stage of installation.

[0050] Example 4: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 8 A movable pin 9 is provided at one end of the beam 1 away from the locking bolt 4, and the position of the movable pin 9 is opposite to the limiting plate 8. A first opening 3017 for the movable pin 9 to enter and exit is provided on the first connecting seat 3, and the first opening 3017 is interference fit with the movable pin 9. An extension plate 202 is provided on one side of the column 2, and the position of the extension plate 202 is opposite to the movable pin 9.

[0051] The cross beam 1 is provided with a second opening 101 for the movable pin 9 to enter and exit. The movable pin 9 is provided with a third protrusion 901 . The cross beam 1 is provided with a notch 102 that fits with the third protrusion 901 , and one end of the notch 102 is connected to the second opening 101 .

[0052] The movable pin 9 can be pre-installed on the beam 1, and can also be installed on the beam 1 during installation. In order to prevent the movable pin 9 from falling off after the installation is completed, the technical solution provides a notch 102 on the second opening 101, and correspondingly, a third protrusion 901 is provided on the cylindrical movable pin 9, and the notch 102 is opened on the upper side of the second opening 101. When in use, align the third protrusion 901 with the notch 102, and then insert the movable pin 9 into the second opening 101, and then rotate the movable pin 9. Under normal circumstances, due to the influence of its own weight, the third protrusion 901 will always face the ground, so that it will maintain a staggered state with the notch 102, so that the movable pin 9 cannot easily fall out of the second opening 101.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A connecting device for a building glass curtain wall, comprising a crossbeam (1), both ends of the crossbeam (1) being provided with columns (2), characterized in that: The crossbeam (1) is a hollow structure, and first connection mechanisms are provided inside both ends of the crossbeam (1), the first connection mechanism comprising a first connection seat (3), a fixing groove (301) is provided inside the first connection seat (3), and a cover plate (302) is provided at one end of the fixing groove (301), and the cover plate (302) is detachably connected to the first connection seat (3); The cover plate (302) is provided with a pre-limiting pin (303), and the pre-limiting pin (303) is elastically connected to the cover plate (302) via a first spring (304); a movable seat (305) and a fixed plate (306) are provided in the fixed groove (301), and the movable seat (305) is elastically connected to the cover plate (302) via a second spring (307); a guide block (308) is provided at one end of the movable seat (305), and a limiting column (309) is provided on the movable seat (305), and one end of the limiting column (309) passes through the A cover plate (302), one end of the guide block (308) is provided with an inclined surface, the fixing plate (306) is fixedly connected to the first connecting seat (3), and the fixing plate (306) is provided with a threaded groove (3010), one side of the crossbeam (1) is provided with a locking bolt (4), one end of the locking bolt (4) passes through the crossbeam (1) and is screwed to the threaded groove (3010), the crossbeam (1) is provided with a glass fixing groove (5) for accommodating glass, and the column (2) is provided with a second connecting mechanism for connecting with the first connecting mechanism.

2. A connecting device for a building glass curtain wall according to claim 1, characterized in that: The movable seat (305) is provided with a guide rod (3011), the size of the guide rod (3011) is the same as that of the pre-limiting pin (303), and the guide rod (3011) and the pre-limiting pin (303) are symmetrically arranged on both sides of the limiting column (309).

3. A connecting device for a building glass curtain wall according to claim 2, characterized in that: The second connection mechanism comprises a second connection seat (6), the second connection seat (6) is provided with a first plug hole (601), and the size of the first plug hole (601) matches the limit column (309), and second plug holes (602) are provided on both sides of the first plug hole (601).

4. A connecting device for a building glass curtain wall according to claim 3, characterized in that: The outer side of the movable seat (305) is provided with a limiting convex rib (3012), and the inner wall of the cross beam (1) is provided with a groove (103) that matches the limiting convex rib (3012). The movable seat (305) is detachably connected to the cross beam (1) by bolts.

5. A connecting device for a building glass curtain wall according to claim 4, characterized in that: An extension column (3013) is provided on one side of the pre-limiting pin (303), and an extension block (3014) is provided on one side of the limiting column (309); the extension block (3014) is elastically connected to the limiting column (309) via a limiting spring (3015), and an inclined surface is provided on one side of the extension block (3014).

6. A connecting device for a building glass curtain wall according to claim 5, characterized in that: The upright column (2) is symmetrically provided with guide grooves (201), and the guide grooves (201) are matched with the guide rods (3011).

7. A connecting device for a building glass curtain wall according to claim 6, characterized in that: A sealing block (7) is provided on the cover plate (302), the sealing block (7) is in a T-shape, and the sealing block (7) is slidably connected to the cover plate (302), a rubber pad (701) is provided at one end of the sealing block (7), and the size of the rubber pad (701) matches the guide groove (201); When the movable seat (305) moves in the direction of the cover plate (302), it contacts the sealing block (7), and the sealing block (7) drives the rubber pad (701) to be inserted into the guide groove (201) to seal the guide groove (201).

8. A connecting device for a building glass curtain wall according to claim 7, characterized in that: A first limiting protrusion (3016) is provided at the tail of the pre-limiting pin (303), a limiting plate (8) is provided inside the movable seat (305), the limiting plate (8) is elastically connected to the movable seat (305) via a rebound spring (801), and a second limiting protrusion (802) for limiting the first limiting protrusion (3016) is provided on one side of the limiting plate (8), and a slope is provided on one side of the second limiting protrusion (802).

9. A connecting device for a building glass curtain wall according to claim 8, characterized in that: A movable pin (9) is provided at one end of the crossbeam (1) away from the locking bolt (4), and the position of the movable pin (9) is opposite to the limiting plate (8); a first opening (3017) for the movable pin (9) to enter and exit is provided on the first connecting seat (3), and the first opening (3017) is interference fit with the movable pin (9); an extension plate (202) is provided on one side of the column (2), and the position of the extension plate (202) is opposite to the movable pin (9).

10. A connecting device for a building glass curtain wall according to claim 9, characterized in that: The crossbeam (1) is provided with a second opening (101) for the movable pin (9) to enter and exit, the movable pin (9) is provided with a third protrusion (901), the crossbeam (1) is provided with a notch (102) that fits with the third protrusion (901), and one end of the notch (102) is connected to the second opening (101).

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