Curtain wall keel internal triple connection structure

Abstract

The present invention discloses a curtain wall keel internal connection type triple connection structure, comprising a vertical keel and two transverse keels connected to both sides of the vertical keel via a connection assembly, the vertical keel having two through-mounting holes, the transverse keel having a transverse inwardly expanding groove, the connection assembly comprising two sliding members capable of passing through the through-mounting holes, the two sliding members respectively being installed through the two through-mounting holes and slidingly engaged with the through-mounting holes, each sliding member corresponding to each transverse keel having a connecting portion located in the transverse inwardly expanding groove of the transverse keel, the transverse keel being connected to the connecting portions of the two sliding members via a first fastening assembly; the first fastening assembly comprising a connecting sleeve, which is mounted on the outside of the connecting portions of the two sliding members, and connected to the connecting portions of the two sliding members via a third fastening screw, the connecting sleeve being abutted against the vertical keel. The present invention has the advantages of simple and convenient installation, high connection strength, high stability and reliability, low cost, and is conducive to improving the simple and refined appearance of the curtain wall.

Description

[0001] (This application is a divisional application of the "Curtain Wall Keel Internally Connected Triple Connection Structure," the original application filed on April 28, 2017, with application number 201710297211.X, and the invention is entitled "Curtain Wall Keel Internally Connected Triple Connection Structure.") Technical Field

[0002] The present invention relates to the technical field of construction engineering, and in particular to a curtain wall keel internally connected triple connection structure. Background Art

[0003] Currently, the connection between horizontal and vertical purlins in curtain walls on the market is mainly achieved through splicing and welding. Among them, splicing is further divided into two types: one is the sequential installation of sub-units, that is, first installing the first vertical purlin, and then alternately installing the horizontal purlins and vertical purlins on the side of the first vertical purlin until the installation of the entire curtain wall is completed; the other is the post-installation of the horizontal purlins, that is, first installing all the vertical purlins of the curtain wall according to the set spacing, and then installing the horizontal purlins between adjacent vertical purlins. The disadvantage of the above-mentioned former installation method is that after the curtain wall is installed, if errors or other factors occur and the purlins need to be replaced, all purlins after the replacement position need to be removed, otherwise the purlins cannot be removed. In addition, the sequential installation of sub-units is prone to cumulative errors, resulting in large deviations in the partition size between the last installed vertical purlins. For example, if the curtain wall installed from left to right has 50 partitions, if the length of each horizontal purlin is reduced by 3mm, the size of each partition (the spacing between adjacent vertical purlins) will also be reduced by 3mm, and the final cumulative error can be as high as 150mm. The latter installation method is to install the horizontal purlins between the vertical purlins after all the vertical purlins are installed. When replacing any of the purlins, you only need to dismantle and install the purlin that needs to be replaced, and this installation method will not cause cumulative errors.

[0004] However, the existing curtain wall technology with rear-mounted horizontal keels is not mature enough and has the following defects:

[0005] 1. The connectors and screws between the keels are difficult to hide. Most of the connectors and screws are exposed, which not only affects the installation of the curtain wall panels, but also makes the appearance of the curtain wall after installation not simple and refined enough;

[0006] 2. The large number of connectors and screws required to connect the keels makes disassembly and assembly difficult and inefficient. In addition, a large number of fastening holes need to be opened on the keels, which will affect the strength of the keels and reduce the rust resistance of the keels.

[0007] 3. The force is transmitted between the keel and the connecting parts by direct fastening with screws, which has problems such as difficulty in ensuring the connection strength, easy loosening and failure, and low safety. In addition, the screws are connected to the side wall of the keel, which has poor force balance and stability. The side wall of the tubular keel is also prone to deformation and damage, which requires a high wall thickness of the keel, increasing the weight of the keel and the overall cost. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a curtain wall keel internal triple connection structure that is simple and convenient to install, has high connection strength, high stability and reliability, low cost, and is conducive to improving the simplicity and refinement of the curtain wall appearance.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0010] The lockhole that is formed on the two ends of the lifting link is formed on the upper surface of the lifting link, and the lockhole that is formed on the lower surface of the lifting link is formed. The two ends of the lifting link are connected to the lift shaft by the spring or bolt.

[0011] In the above-mentioned curtain wall keel internal connection type triple connection structure, preferably, the connection parts of the two sliding members cooperate with the transverse inwardly expanded groove so that the transverse keel can only slide along the extension direction of the transverse inwardly expanded groove.

[0012] In the above-mentioned curtain wall keel internally connected triple connection structure, preferably, the connecting sleeve is provided with a second supporting portion for supporting the curtain wall panel.

[0013] In the above-mentioned curtain wall keel internal connection type triple connection structure, preferably, the notch of the transverse inwardly expanded groove has a width that allows the connecting parts of the two sliding members to be simultaneously placed in the transverse inwardly expanded groove from the notch.

[0014] In the above-mentioned curtain wall keel internal connection type triple connection structure, preferably, the first fastening component is accommodated in the transverse inwardly expanded groove.

[0015] In the above-mentioned curtain wall keel internal connection type triple connection structure, preferably, the through-mounting hole is a round hole, and the sliding member is a hollow tube or a solid rod that slides with the through-mounting hole.

[0016] The above-mentioned curtain wall keel internally connected triple connection structure is preferably further provided with a supporting member for supporting the curtain wall panel, and the supporting member is fixedly connected to the transverse keel and / or the sliding member by screws.

[0017] In the above-mentioned curtain wall keel internal triple connection structure, preferably, each sliding member on the vertical keel is further provided with a fourth fastening screw for fixing the sliding member, and the fourth fastening screw is directly connected to fasten the vertical keel and the sliding member, or the fourth fastening screw is installed on the vertical keel and presses the sliding member.

[0018] In the above-mentioned curtain wall keel internal connection type triple connection structure, preferably, the front surface of the vertical keel is provided with a vertical inward-expanding groove, and the fourth fastening screw is accommodated in the vertical inward-expanding groove.

[0019] Compared with the prior art, the advantages of the present invention are that the curtain wall keel internal connection type triple connection structure of the present invention can realize the post-installation and independent disassembly of the transverse keel. The transverse keel can be disassembled and assembled by simply adjusting the sliding member to insert or withdraw from the transverse inward expansion groove of each transverse keel and correspondingly disassembling each first fastening component. The disassembly and assembly steps are few and the operation is simple, which can greatly improve the disassembly and assembly efficiency. At the same time, the two sliding members are respectively installed in the two through-mounting holes and slide with the through-mounting holes. After the transverse keel is connected to the two sliding members, the cooperation between the two sliding members and the two through-mounting holes limits all degrees of freedom of the transverse keel relative to the vertical keel except for sliding along the through-mounting holes. This connection and cooperation structure has high connection strength, stability and reliability. No fasteners for transmitting force are required between the sliding member and the vertical keel, which can reduce the workload of disassembly and assembly and the cost of accessories. It can also avoid the fasteners from penetrating the vertical keel, which can reduce the impact on the strength of the vertical keel and improve the rust resistance of the vertical keel. In addition, the sliding joints are hidden inside the vertical and horizontal purlins, which will not affect the installation of the curtain wall panels and will help improve the simplicity and refinement of the curtain wall after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the curtain wall keel internal triple connection structure in Example 1.

[0021] Figure 2 This is a side view of the triple-connected structure of the curtain wall keel in Example 1.

[0022] Figure 3 This is a schematic top view of the internally connected triple-connected structure of the curtain wall keel in Example 1.

[0023] Figure 4 This is a schematic top view of the internally connected triple-connected structure of the curtain wall keel in Example 2.

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the curtain wall keel internal triple connection structure in Example 3.

[0025] Figure 6 This is a side structural schematic diagram of the curtain wall keel internal triple connection structure in Example 3.

[0026] Figure 7 This is a schematic diagram of the bottom view of the internally connected triple-connected structure of the curtain wall keel in Example 3.

[0027] Figure 8 This is a side structural schematic diagram of the curtain wall keel internal triple connection structure in Example 4.

[0028] Legend:

[0029] 1. Vertical keel; 10. Through-mounting hole; 11. Vertical inward-expanding groove; 2. Horizontal keel; 21. Horizontal inward-expanding groove; 3. Sliding member; 31. Connecting portion; 4. Pressing member; 41. Mounting portion; 42. Pressing portion; 43. First supporting portion; 5. Connecting sleeve; 51. Second supporting portion; 101. First fastening screw; 102. Second fastening screw; 103. Third fastening screw; 104. Fourth fastening screw. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1:

[0032] like Figures 1 to 3 As shown, the curtain wall keel internal connection type triple connection structure of this embodiment includes a vertical keel 1 and two transverse keels 2 connected to both sides of the vertical keel 1 through a connecting assembly. The vertical keel 1 is provided with two through mounting holes 10, and the transverse keel 2 has a transverse inward-expanding groove 21. The connecting assembly includes two sliding members 3 that can pass through the through mounting holes 10. The two sliding members 3 are respectively installed in the two through mounting holes 10 and slideably cooperate with the through mounting holes 10. Each sliding member 3 is provided with a connecting portion 31 located in the transverse inward-expanding groove 21 of the transverse keel 2 corresponding to each transverse keel 2. The transverse keel 2 is connected to the connecting portion 31 of the two sliding members 3 through a first fastening assembly. The above-mentioned two sliding parts 3 are respectively installed in the two through mounting holes 10, and then connected to the transverse keel 2 through the first fastening assembly, so that the transverse keel 2 can only slide along the through mounting holes 10 relative to the vertical keel 1, and the transverse keels 2 on both sides are abutted against the vertical keels 1 for position limiting. At the same time, the two ends of the transverse keel 2 are respectively abutted against the vertical keels 1 at both ends, which can prevent the transverse keel 2 from sliding relative to the through mounting holes 10 of the vertical keels 1, thereby realizing the connection between the vertical keels 1 and the transverse keels 2.

[0033] In this embodiment, the connecting parts 31 of the two sliding members 3 cooperate with the transverse inward-expanding groove 21 so that the transverse keel 2 can only slide along the extension direction of the transverse inward-expanding groove 21, and the transverse keel 2 can only slide along the extension direction of the transverse inward-expanding groove 21 relative to the sliding member 3. In this way, the first fastening component only needs to limit the sliding of the two sliding members 3. This connection structure has high connection strength, stability and reliability. No fasteners for transmitting force are required between the sliding member 3 and the transverse keel 2. The number of fasteners required is small, which can greatly reduce the disassembly and assembly workload and accessory costs. It can also be achieved without opening through holes for installing fasteners on the transverse keel 2, reducing the impact on the strength of the transverse keel 2.

[0034] In this embodiment, the first fastening assembly is a compression-type fastening assembly that compresses and fixes the connecting portions 31 of the two sliding members 3 in the transverse inwardly expanded groove 21. The compression-type fastening assembly includes one or more first fastening screws 101 and a compression member 4 that is inserted into the transverse inwardly expanded groove 21 from a notch in the transverse inwardly expanded groove 21. The first fastening screw 101 is connected between the compression member 4 and the transverse keel 2. The compression member 4 simultaneously compresses and fixes the connecting portions 31 of the two sliding members 3, preventing the sliding members 3 and the transverse keel 2 from sliding relative to each other. The compression member 4 also compresses and fixes the connecting portions 31 of the two sliding members 3, preventing the connecting portions 31 of the two sliding members 3 from deforming easily, thereby ensuring the stability and reliability of the cooperation between the connecting portions 31 of the two sliding members 3 and the transverse inwardly expanded groove 21.

[0035] In this embodiment, the pressing member 4 includes a mounting portion 41 and two pressing portions 42 elastically connected to either side of the mounting portion 41. A first fastening screw 101 passes through the mounting portion 41 and is connected to the transverse keel 2. The first fastening screw 101 is located between the two pressing portions 42 and forces the two pressing portions 42 to respectively press against the connecting portions 31 of the two sliding members 3. The two pressing portions 42 of this type of pressing member 4 respectively press against the connecting portions 31 of the two sliding members 3, forcing the connecting portions 31 of the two sliding members 3 away from each other and closely adhering to the inner wall of the transverse inwardly expanded groove 21. This provides excellent pressing and fixing capabilities, which helps ensure the stability and reliability of the fit between the connecting portions 31 of the two sliding members 3 and the transverse inwardly expanded groove 21.

[0036] Furthermore, the screw head of the first fastening screw 101 is provided with an annular arc surface, and each clamping part 42 is provided with an arc surface that is in line contact with the annular arc surface. During the tightening and clamping process of the first fastening screw 101, the annular arc surface of the screw head and the arc surface of the clamping part 42 are in line contact with each other, forcing the two clamping parts 42 to respectively clamp the connecting parts 31 of the two sliding parts 3, and the force-bearing capacity is good, and the clamping is stable and reliable.

[0037] In this embodiment, the first fastening screw 101 is accommodated in the transverse inward-expanding groove 21. Since the first fastening screw 101 is not exposed, it will not affect the installation of the curtain wall panel. The curtain wall panel can be well fitted with the surface of the horizontal purlin 2 and the vertical purlin 1, so that the fit and installation stability of the curtain wall panel are greatly improved, and the appearance of the curtain wall after installation can be ensured to be simple and exquisite.

[0038] In this embodiment, the pressing member 4 is provided with a first supporting portion 43 for supporting the curtain wall panel. The first supporting portion 43 extends outside the transversely inwardly expanded groove 21 to facilitate installation of the curtain wall panel. The pressing member 4 is formed by bending a plate, which is simple to manufacture and low in cost. In other embodiments, a separate supporting member for supporting the curtain wall panel can also be provided. The supporting member can be fixedly connected to the sliding member 3 or the transverse keel 2 via screws, or the supporting member can be fixedly connected to the sliding member 3 and the transverse keel 2 via screws.

[0039] In this embodiment, the through-mounting hole 10 is a circular hole, which is easy to drill and has little effect on the strength of the vertical keel 1. The sliding member 3 is a hollow tube that slides with the through-mounting hole 10. The cross-sectional dimensions of the sliding member 3 are the same as those of the through-mounting hole 10, and the sliding member 3 can slide along the through-mounting hole 10 and rotate within the through-mounting hole 10. In other embodiments, the through-mounting hole 10 can also be a non-circular hole, and the sliding member 3 can also be a solid rod.

[0040] The front of the vertical purlin 1 of this embodiment is also provided with a vertical inward-expanding groove 11. The vertical purlin 1 can use the same pipe fittings as the transverse purlin 2, without the need to separately design and manufacture additional pipe fittings. There is no need to distinguish between the vertical purlin 1 and the transverse purlin 2 during installation, which is conducive to saving costs and improving the ease of installation.

[0041] Example 2:

[0042] The internal curtain wall keel triple connection structure of this embodiment is basically the same as that of embodiment 1, the main difference is that Figure 4 As shown, in this embodiment, fourth fastening screws 104 are further provided on the vertical purlins 1 corresponding to each sliding member 3 for securing the sliding member 3. The fourth fastening screws 104 directly connect and fasten the vertical purlins 1 and the sliding member 3. Adding the fourth fastening screws 104 to secure the sliding member 3 further improves the stability and reliability of the connection. Furthermore, each fourth fastening screw 104 is housed in a vertically inwardly expanded groove 11. Since the fourth fastening screws 104 are not exposed, they do not affect the installation of the curtain wall panels. The curtain wall panels can be well adhered to the surfaces of the horizontal purlins 2 and vertical purlins 1, greatly improving the panels' fit and installation stability, while ensuring a simple and refined appearance after installation.

[0043] Example 3:

[0044] The internal curtain wall keel triple connection structure of this embodiment is basically the same as that of embodiment 1, the main difference is that Figures 5 to 7 As shown, the vertical purlin 1 of this embodiment does not have a vertically inwardly expanded groove 11, and the front surface of the vertical purlin 1 is flat. The first fastening assembly includes a connecting sleeve 5 that is installed in the transversely inwardly expanded groove 21 and only slides with the transversely inwardly expanded groove 21. The connecting sleeve 5 is mounted outside the connecting portion 31 of the two sliding members 3. The connecting sleeve 5 is connected to the connecting portion 31 of the two sliding members 3 via a third fastening screw 103, and the connecting sleeve 5 abuts against the vertical purlin 1. The connecting sleeve 5 only slides with the transversely inwardly expanded groove 21, so that the transverse purlin 2 can only slide relative to the two sliding members 3 along the direction in which the transversely inwardly expanded groove 21 extends. At the same time, the connecting sleeve 5 abuts against the vertical purlin 1 to limit its position. After installation, the two ends of the transverse purlin 2 respectively abut against the vertical purlins 1 at both ends, preventing the transverse purlin 2 from sliding relative to the through-mounting hole 10 of the vertical purlin 1, thereby achieving the connection between the vertical purlins 1 and 2. The third fastening screw 103 of this embodiment does not penetrate the transverse keel 2 , which will not affect the strength of the transverse keel 2 , and the transverse keel 2 has better rust resistance.

[0045] In addition, the vertical purlins 1 of this embodiment are provided with corresponding fourth fastening screws 104 for securing the sliding connections 3. The fourth fastening screws 104 are threadedly mounted on the vertical purlins 1 and compress the sliding connections 3. The fourth fastening screws 104 do not penetrate holes in the sliding connections 3, thereby maintaining the strength of the sliding connections 3 and making installation easier.

[0046] In this embodiment, the connecting sleeve 5 is provided with a second supporting portion 51 for supporting the curtain wall panel, so as to facilitate the installation of the curtain wall panel. The pressing member 4 is made of a bent plate, which is simple to manufacture and low in cost.

[0047] In this embodiment, the slot opening of the transverse inwardly expanded groove 21 has a width that allows the connecting portions 31 of the two sliding members 3 to be simultaneously inserted into the transverse inwardly expanded groove 21 from the slot opening. Since the connecting portions 31 of the two sliding members 3 can be simultaneously inserted into the transverse inwardly expanded groove 21 from the slot opening of the transverse inwardly expanded groove 21, the sliding member 3 can be first installed on the vertical keel 1, and then the transverse keel 2 can be put on the connecting portion 31 through the transverse inwardly expanded groove 21, and then the first fastening component can be installed to complete the installation. During the installation process, there is no need for manual support of the transverse keel 2, and the transverse keel 2 is not easy to fall off, so the installation is convenient and simple.

[0048] Example 4:

[0049] The internal curtain wall keel triple connection structure of this embodiment is basically the same as that of embodiment 3, the main difference is that Figure 8As shown, the first fastening component of this embodiment is a second fastening screw 102. Each connecting portion 31 is directly connected and fixed to the vertical keel 1 via a second fastening screw 102. The second fastening screw 102 is accommodated in the transverse inwardly expanded groove 21. This embodiment provides a more stable connection between the transverse keel 2 and the sliding member 3.

[0050] The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiment. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of the present invention should also be considered as the scope of protection of the present invention.

Claims

1. A curtain wall keel internal connection type triple connection structure, comprising a vertical keel (1) and two transverse keels (2) connected to both sides of the vertical keel (1) through a connecting assembly, characterized in that: The vertical keel (1) is provided with two through-mounting holes (10), the transverse keel (2) has a transverse inward-expanding groove (21), the connecting assembly includes two sliding members (3) capable of passing through the through-mounting holes (10), the two sliding members (3) are respectively installed in the two through-mounting holes (10) and slide in cooperation with the through-mounting holes (10), each sliding member (3) is provided with a connecting portion (31) located in the transverse inward-expanding groove (21) of the transverse keel (2) corresponding to each transverse keel (2), the transverse keel The keel (2) is connected to the connecting parts (31) of the two sliding parts (3) through a first fastening assembly; the first fastening assembly comprises a connecting sleeve (5) installed in a transverse inwardly expanded groove (21) and only slidingly matched with the transverse inwardly expanded groove (21); the connecting sleeve (5) is sleeved on the outside of the connecting parts (31) of the two sliding parts (3); the connecting sleeve (5) is connected to the connecting parts (31) of the two sliding parts (3) through a third fastening screw (103); and the connecting sleeve (5) abuts against the vertical keel (1).

2. The curtain wall keel internal connection triple connection structure according to claim 1, characterized in that: The connecting parts (31) of the two sliding members (3) cooperate with the transverse inwardly expanding groove (21) so that the transverse keel (2) can only slide along the extending direction of the transverse inwardly expanding groove (21).

3. The curtain wall keel internal connection triple connection structure according to claim 1, characterized in that: The connecting sleeve (5) is provided with a second supporting portion (51) for supporting the curtain wall panel.

4. The curtain wall keel internal connection triple connection structure according to claim 1, characterized in that: The slot opening of the transversely inwardly expanded groove (21) has a width that enables the connecting portions (31) of two sliding members (3) to be simultaneously placed into the transversely inwardly expanded groove (21) from the slot opening.

5. The curtain wall keel internal connection triple connection structure according to claim 1, characterized in that: The first fastening assembly is accommodated in the transversely inwardly expanded groove (21).

6. The curtain wall keel internal connection triple connection structure according to claim 1, characterized in that: The through-mounting hole (10) is a circular hole, and the sliding member (3) is a hollow tube or a solid rod that is slidably matched with the through-mounting hole (10).

7. The curtain wall keel internal connection triple connection structure according to claim 1, characterized in that: The curtain wall keel internally connected triple connection structure is also provided with a supporting member for supporting the curtain wall panel, and the supporting member is fixedly connected to the transverse keel (2) and / or the sliding member (3) via screws.

8. The curtain wall stud internal connection triple-joint structure according to any one of claims 1 to 7, characterized in that: A fourth fastening screw (104) for fixing the sliding member (3) is further provided on the vertical keel (1) corresponding to each sliding member (3); the fourth fastening screw (104) directly connects and fastens the vertical keel (1) and the sliding member (3), or the fourth fastening screw (104) is installed on the vertical keel (1) and presses the sliding member (3).

9. The curtain wall keel internal connection triple connection structure according to claim 8, characterized in that: A vertical inward-expanding groove (11) is provided on the front surface of the vertical keel (1), and the fourth fastening screw (104) is accommodated in the vertical inward-expanding groove (11).

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