Expansion joint device for curtain wall energy-saving glass

Abstract

The invention provides an expansion joint device for energy-saving glass of a curtain wall, and relates to the technical field of buildings, the expansion joint device comprises an outer frame structure, a transverse clamping groove seat, a buffer device I, a corner expansion joint mechanism, a vertical clamping groove seat and a buffer device II; the device has the advantages of being reasonable and simple in structure, low in production cost, convenient to install and complete in function, the outer frame structure achieves stable connection through a specific connecting structure, stable supporting can be provided for the whole device, and the reliability of the device foundation frame is guaranteed; through the elastic effect of the buffering device, the acting force generated when the curtain wall stretches out and draws back can be effectively buffered, the limiting structure can guarantee the stability of the buffering process, the buffering effect of the device is improved, and the service life of the device is prolonged; the expansion joint mechanism arranged at the corner position can adapt to complex expansion deformation at the corner through the synergistic effect of the buffer connecting mechanism and the connecting device, stress concentration is avoided, and the safety of the corner position is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of construction, and in particular to an expansion joint device for energy-saving curtain wall glass. Background Art

[0002] In modern architecture, curtain walls, as a beautiful, lightweight building envelope with excellent daylighting properties, are widely used in various high-rise buildings. Energy-saving glass curtain walls, with their excellent thermal insulation properties and ability to effectively reduce building energy consumption, have become a key trend in curtain wall development.

[0003] However, energy-saving curtain wall glass is subject to inevitable expansion and contraction during actual use, influenced by external factors such as temperature fluctuations, wind pressure, and earthquakes. If this expansion and contraction is not properly relieved, it can easily lead to glass breakage and structural damage to the curtain wall, affecting not only the aesthetics and functionality of the building but also potential safety hazards.

[0004] To address these issues, existing expansion joint devices for curtain wall glass have emerged, but these devices often suffer from numerous drawbacks. For example, some devices lack a robust outer frame connection, which can easily loosen and deform after prolonged use or when subjected to significant external forces, rendering the entire device inoperable. Some buffering devices offer poor cushioning, failing to effectively absorb the forces generated by the expansion and contraction of the glass and curtain wall structure, shortening the device's service life. At corners, existing expansion joint mechanisms lack sufficient connection and cushioning performance, making them difficult to adapt to the complex expansion and contraction deformations found at these locations. This can lead to stress concentration and damage in these areas.

[0005] Furthermore, existing devices suffer from poor coordination between their components, leading to problems such as jamming and excessive friction during expansion and contraction, which affect their proper functioning and fail to fully guarantee the safety and energy-saving performance of energy-saving curtain wall glass. Therefore, developing an energy-saving curtain wall glass expansion joint device with a rational structure, stable connections, effective buffering, and the ability to adapt to complex expansion and contraction deformations has become an urgent challenge in the current construction industry. Summary of the Invention

[0006] The purpose of the present invention is to provide an expansion joint device for energy-saving curtain wall glass in order to solve the above problems, which solves the problems of unstable connection of the outer frame structure of the existing device, poor buffering effect, insufficient performance of the expansion joint mechanism at the corner position and poor coordination of the various components.

[0007] In order to solve the above problems, the present invention provides a technical solution: an expansion joint device for energy-saving curtain wall glass, comprising an outer frame structure, a horizontal slot seat, a buffer device 1, a corner expansion joint mechanism, a vertical slot seat and a buffer device 2; the buffer device 1 is multiple, and the multiple buffer devices 1 are respectively fixedly connected to the upper and lower sides of the outer frame structure; the horizontal slot seat is two, the outer sides of the two horizontal slot seats are respectively located inside the upper and lower sides of the outer frame structure, and the two horizontal slot seats are respectively fixedly connected to the corresponding buffer device 1; the buffer device 2 is multiple, and the multiple buffer devices 2 are respectively fixedly connected to the left and right sides of the outer frame structure; the vertical slot seat is two, the outer sides of the two vertical slot seats are respectively located inside the left and right sides of the outer frame structure, and the two vertical slot seats are respectively fixedly connected to the corresponding buffer device 2; the corner expansion joint mechanism is four, and the four corner expansion joint mechanisms are respectively arranged at the four corners of the inner side of the outer frame structure, and the two sides of the four corner expansion joint mechanisms are respectively connected to the ends of the corresponding horizontal slot seat and the vertical slot seat.

[0008] Preferably, the outer frame structure includes a transverse profile, a connecting structure, and a vertical profile; there are two transverse profiles and two vertical profiles, and the transverse profiles and the vertical profiles are fixedly connected to each other by the connecting structure. Preferably, the connecting structure includes a connecting block 1, a connecting groove 1, fixing screws, a connecting block 2, a connecting groove 2, and a connecting clamp; the connecting block 1 and the connecting block 2 are respectively fixedly connected to the outside of the connection between the corresponding transverse profile and the vertical profile, and the outer centers of the connecting block 1 and the connecting block 2 are respectively provided with a connecting groove 1 and a connecting groove 2; one side of the connecting clamp is fixedly connected to the inside of the connecting groove 1 by a number of fixing screws, and the other side of the connecting clamp is fixedly connected to the inside of the connecting groove 2 by a number of fixing screws.

[0009] Preferably, the structure of the buffer device 2 is consistent with that of the buffer device 1, and the buffer device 1 includes an outer shell 1, an inner cavity 1, a spring 1, a movable block 1 and a limiting convex groove 1; an inner cavity 1 is provided inside the outer shell 1; the outer side of the movable block 1 is movably connected to the inner cavity 1, a spring 1 is provided between the inner side of the upper side of the movable block 1 and the upper side of the inner cavity 1, and limiting convex grooves 1 are provided on both sides of the upper side of the movable block 1.

[0010] Preferably, the corner expansion joint mechanism includes a buffer connection mechanism 1, a corner slot seat, a buffer connection mechanism 2 and a connecting device; the two inner sides of the horizontal slot seat are fixedly connected with the buffer connection mechanism 1; the two inner sides of the vertical slot seat are fixedly connected with the buffer connection mechanism 2; the corner slot seat is movably connected to the inner corner position of the outer frame structure, the outer side of the corner slot seat is respectively connected to the buffer connection mechanism 1 and the buffer connection mechanism 2, and both ends of the corner slot seat are connected to the ends of the horizontal slot seat and the vertical slot seat through a connecting device.

[0011] Preferably, the structure of the buffer connection mechanism 2 is consistent with that of the buffer connection mechanism 1, and the buffer connection mechanism 1 includes an outer shell 2, an inner cavity 2, a spring 2, a movable block 2, a limiting convex groove 2, a slider and a guide groove; an inner cavity 2 is provided inside the outer shell 2; the outer side of the movable block 2 is movably connected to the inner cavity 2, a spring 2 is provided between the inner side of the upper side of the movable block 2 and the upper side of the inner cavity 2, and limiting convex grooves 2 are provided on both sides of the upper side of the movable block 2; the slider is fixedly connected to the bottom of the movable block 2, and the outer side of the movable block 2 is movably connected to the inside of the guide groove, and the guide groove is opened on the outer side of the corner slot seat.

[0012] Preferably, the guide groove is a T-shaped guide groove and matches the exterior of the slider.

[0013] Preferably, the connecting device includes a connecting shell, a connecting cavity, a sliding seat, a guide block, a connecting slot seat and a slide groove; the connecting shell is fixedly connected to the end of the corner slot seat, and a connecting cavity is provided inside the connecting shell; the outside of one side of the sliding seat is movably connected to the inside of the connecting cavity, and the other end of the sliding seat is fixedly connected to the guide block; the connecting slot seat is fixedly connected to the end of the horizontal slot seat, and a slide groove is provided on the left side of the connecting slot seat, and the inside of the slide groove is movably connected to the outside of the guide block.

[0014] Preferably, the slide groove is a T-shaped slide groove and matches the outer portion of the guide block.

[0015] The beneficial effects of the present invention are as follows: (1) The present invention has the characteristics of reasonable and simple structure, low production cost, easy installation and complete functions. The outer frame structure is firmly connected through a specific connection structure, which can provide stable support for the entire device and ensure the reliability of the basic frame of the device.

[0016] (2) The present invention can effectively buffer the force generated when the curtain wall is expanded and contracted through the elastic action of the buffer device, and the limiting structure can ensure the stability of the buffering process, thereby improving the buffering effect and service life of the device.

[0017] (3) The expansion joint mechanism provided at the corner of the present invention can adapt to the complex expansion and contraction deformation at the corner through the synergistic effect of the buffer connection mechanism and the connection device, avoid stress concentration, and ensure the safety of the corner.

[0018] (4) The various components of the present invention have good coordination and move stably during the expansion and contraction process without jamming or excessive friction. This can further adapt to the expansion and contraction deformation of the curtain wall, ensuring that the entire device works stably under various working conditions and guaranteeing the safety and energy-saving performance of the curtain wall energy-saving glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 for Figure 1 sectional view of .

[0021] Figure 3 It is a structural diagram of the outer frame structure.

[0022] Figure 4 A structural diagram of the connection structure.

[0023] Figure 5 Schematic diagram of the structure of the buffer device.

[0024] Figure 6 It is a structural diagram of the corner expansion joint mechanism.

[0025] Figure 7 Schematic diagram of the structure of the buffer connection mechanism.

[0026] Figure 8 Schematic diagram of the structure of the connecting device.

[0027] Figure 9 for Figure 8 Top view of .

[0028] 1-outer frame structure; 2-horizontal card slot seat; 3-buffer device one; 4-corner expansion joint mechanism; 5-vertical card slot seat; 6-buffer device two; 11-horizontal profile; 12-connecting structure; 13-vertical profile; 31-outer shell one; 32-inner cavity one; 33-spring one; 34-movable block one; 35-limiting convex groove one; 41-buffer connection mechanism one; 42-corner card slot seat; 43-buffer connection mechanism two; 44-connecting device; 411-outer shell two; 412-inner cavity two; 413-spring two; 414-movable block two; 415-limiting convex groove two; 416-slider; 417-guide groove; 441-connecting shell; 442-connecting cavity; 443-slide seat; 444-guide block; 445-connecting slot seat; 446-slide groove. DETAILED DESCRIPTION

[0029] like Figure 1 and Figure 2As shown, this specific embodiment adopts the following technical solution: an expansion joint device for energy-saving curtain wall glass, comprising an outer frame structure 1, a transverse slot seat 2, a buffer device 3, a corner expansion joint mechanism 4, a vertical slot seat 5 and a buffer device 6; the buffer device 3 is multiple, and the multiple buffer devices 3 are respectively fixedly connected to the upper and lower sides of the outer frame structure 1; the transverse slot seats 2 are two, and the exteriors of the two transverse slot seats 2 are respectively located inside the upper and lower sides of the outer frame structure 1, and the two transverse slot seats 2 are respectively fixedly connected to the corresponding buffer device 3; There are several buffer devices 2 6, and the several buffer devices 2 6 are respectively fixedly connected to the inside of the left and right sides of the outer frame structure 1; there are two vertical slot seats 5, and the outsides of the two vertical slot seats 5 are respectively located inside the left and right sides of the outer frame structure 1, and the two vertical slot seats 5 are respectively fixedly connected to the corresponding buffer devices 2 6; there are four corner expansion joint mechanisms 4, and the four corner expansion joint mechanisms 4 are respectively arranged at the four corners of the inner side of the outer frame structure 1, and the two sides of the four corner expansion joint mechanisms 4 are respectively connected to the ends of the corresponding horizontal slot seats 2 and the vertical slot seats 5.

[0030] like Figure 3 As shown, the outer frame structure 1 includes a transverse profile 11 , a connecting structure 12 and a vertical profile 13 ; there are two transverse profiles 11 and two vertical profiles 13 , and the transverse profiles 11 and the vertical profiles 13 are fixedly connected to each other via the connecting structure 12 .

[0031] like Figure 4 As shown, the connection structure 12 includes a connection block 121, a connection groove 122, a fixing screw 123, a connection block 124, a connection groove 125 and a connection clamping block 126; the connection block 121 and the connection block 124 are respectively fixedly connected to the outside of the connection between the corresponding horizontal profile 11 and the vertical profile 13, and the outer centers of the connection block 121 and the connection block 2 124 are respectively provided with a connection groove 122 and a connection groove 2 125; one side of the connection clamping block 126 is fixedly connected to the inside of the connection groove 122 by a number of fixing screws 123, and the other side of the connection clamping block 126 is fixedly connected to the inside of the connection groove 2 125 by a number of fixing screws 123.

[0032] like Figure 5 As shown, the structure of the buffer device 2 6 is consistent with that of the buffer device 1 3, and the buffer device 3 includes an outer shell 1 31, an inner cavity 1 32, a spring 1 33, a movable block 1 34 and a limiting convex groove 1 35; an inner cavity 1 32 is provided inside the outer shell 1 31; the outer portion of the upper side of the movable block 1 34 is movably connected to the inner portion of the inner cavity 1 32, a spring 1 33 is provided between the inner portion of the upper side of the movable block 1 34 and the upper side of the inner cavity 1 32, and limiting convex grooves 1 35 are provided on both sides of the upper side of the movable block 1 34.

[0033] like Figure 6 As shown, the corner expansion joint mechanism 4 includes a buffer connection mechanism 1 41, a corner slot seat 42, a buffer connection mechanism 2 43 and a connecting device 44; the inner sides of the horizontal slot seat 2 are fixedly connected with the buffer connection mechanism 1 41; the inner sides of the vertical slot seat 5 are fixedly connected with the buffer connection mechanism 2 43; the corner slot seat 42 is movably connected to the inner corner position of the outer frame structure 1, and the outer sides of the corner slot seat 42 are respectively connected to the buffer connection mechanism 1 41 and the buffer connection mechanism 2 43, and both ends of the corner slot seat 42 are connected to the ends of the horizontal slot seat 2 and the vertical slot seat 5 through the connecting device 44.

[0034] like Figure 7 As shown, the structure of the buffer connection mechanism 2 43 is consistent with that of the buffer connection mechanism 1 41, and the buffer connection mechanism 1 41 includes an outer shell 2 411, an inner cavity 2 412, a spring 2 413, a movable block 2 414, a limiting convex groove 2 415, a slider 416 and a guide groove 417; the inner cavity 2 412 is provided inside the outer shell 2 411; the outer side of the movable block 2 414 is movably connected to the inner cavity 2 412, and a spring 2 413 is provided between the inner side of the upper side of the movable block 2 414 and the upper side of the inner cavity 2 412, and limiting convex grooves 2 415 are provided on both sides of the upper side of the movable block 2 414; the slider 416 is fixedly connected to the bottom of the movable block 2 414, and the outer side of the movable block 2 414 is movably connected to the inside of the guide groove 417, and the guide groove 417 is provided on the outer surface of the corner slot seat 42.

[0035] The guide groove 417 is a T-shaped guide groove and matches the outer portion of the slider 416 .

[0036] like Figure 8 and Figure 9 As shown, the connecting device 44 includes a connecting shell 441, a connecting cavity 442, a slide 443, a guide block 444, a connecting slot seat 445 and a slide 446; the connecting shell 441 is fixedly connected to the end of the corner slot seat 42, and a connecting cavity 442 is provided inside the connecting shell 441; one side of the slide 443 is movably connected to the inside of the connecting cavity 442, and the other side of the slide 443 is fixedly connected to the guide block 444; the connecting slot seat 445 is fixedly connected to the end of the horizontal slot seat 2, and a slide 446 is provided on the left side of the connecting slot seat 445, and the inside of the slide 446 is movably connected to the outside of the guide block 444.

[0037] The sliding groove 446 is a T-shaped sliding groove and matches the outer portion of the guide block 444 .

[0038] The usage status of the present invention is: the present invention has a reasonable and simple structure, low production cost, easy installation, and complete functions. When installing and using the curtain wall energy-saving glass, the outer frame structure 1 serves as the basic frame of the entire device, and its horizontal profile 11 and vertical profile 13 are firmly connected through the connecting structure 12. In the connecting structure 12, the connecting block 121 and the connecting block 2 124 are respectively fixed to the outside of the connection between the horizontal profile 11 and the vertical profile 13, and the connecting block 126 is simultaneously fixed to the inside of the connecting groove 122 and the connecting groove 2 125 by fixing screws 123, ensuring that the horizontal profile 11 and the vertical profile 13 are firmly connected, providing stable support for the entire device. When the curtain wall expands and contracts vertically due to temperature changes, the horizontal slot seat 2 will be subjected to a corresponding force. At this time, the buffer device 3 fixedly connected to the horizontal slot seat 2 begins to play a role. The movable block 34 of the buffer device 3 moves in the inner cavity 32 of the outer shell 31. The spring 33 is compressed or stretched, and its elasticity is used to buffer the force exerted on the horizontal slot seat 2. At the same time, the limiting convex groove 35 can prevent the movable block 34 from detaching from the inner cavity 32, thereby ensuring the stability of the buffering process. Similarly, when the curtain wall expands and contracts horizontally, the vertical slot seat 5 drives the buffer device 2 6 to work. Its working principle is consistent with that of the buffer device 3, and the vertical direction is buffered by the elastic action of the spring. directional force, at the corner position of the curtain wall, the corner expansion joint mechanism 4 plays a key connection and buffering role, the buffer connection mechanism 1 41 on both sides of the inner side of the horizontal slot seat 2 and the buffer connection mechanism 2 43 on both sides of the inner side of the vertical slot seat 5 are connected to the corner slot seat 42. When horizontal and vertical expansion and contraction deformation occurs at the corner, the movable block 2 414 in the buffer connection mechanism 1 41 and the buffer connection mechanism 2 43 moves in the inner cavity 2 412 of the outer shell 2 411, and the spring 2 413 expands and contracts accordingly to buffer the force, and the limiting convex groove 2 415 prevents the movable block 2 414 from falling out. At the same time, the slider 416 at the bottom of the movable block 2 414 is in the T-shaped outer surface of the corner slot seat 42. Sliding in the guide groove 417 ensures the stability of the movement of the movable block 2 414. In addition, the two ends of the corner slot seat 42 are connected to the ends of the horizontal slot seat 2 and the vertical slot seat 5 through the connecting device 44. When the horizontal or vertical slot seat is expanded or contracted, the slide 443 in the connecting device 44 moves in the connecting cavity 442 of the connecting shell 441, and the guide block 444 slides in the T-shaped slide groove 446 of the connecting slot seat 445, so that the corner slot seat 42 and the horizontal and vertical slot seats can move relative to each other, further adapting to the expansion and contraction deformation of the curtain wall, ensuring that the entire expansion joint device can work stably under various working conditions, and ensuring the safety and energy-saving performance of the curtain wall energy-saving glass.

[0039] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two elements or an interaction relationship between two elements. Unless otherwise clearly specified and limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0042] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices. Therefore, the control method and wiring layout are no longer explained in detail in the present invention.

Claims

1. An expansion joint device for energy-saving curtain wall glass, characterized by: It comprises an outer frame structure (1), a horizontal slot seat (2), a first buffer device (3), a corner expansion joint mechanism (4), a vertical slot seat (5) and a second buffer device (6); There are a plurality of the buffer devices (3), and the plurality of the buffer devices (3) are fixedly connected to the interior of the upper and lower sides of the outer frame structure (1); There are two transverse slot seats (2), the exteriors of the two transverse slot seats (2) are respectively located inside the upper and lower sides of the outer frame structure (1), and the two transverse slot seats (2) are respectively fixedly connected to the corresponding buffer device (3); There are a plurality of the second buffer devices (6), and the plurality of the second buffer devices (6) are fixedly connected to the inside of the left and right sides of the outer frame structure (1); There are two vertical card slot seats (5), the exteriors of the two vertical card slot seats (5) are respectively located inside the left and right sides of the outer frame structure (1), and the two vertical card slot seats (5) are respectively fixedly connected to the corresponding buffer device 2 (6); There are four corner expansion joint mechanisms (4), which are respectively arranged at the four inner corners of the outer frame structure (1), and two sides of the four corner expansion joint mechanisms (4) are respectively connected to the ends of the corresponding horizontal card slot seats (2) and vertical card slot seats (5).

2. The expansion joint device for energy-saving curtain wall glass according to claim 1, characterized in that: The outer frame structure (1) comprises a transverse profile (11), a connecting structure (12) and a vertical profile (13); There are two transverse profiles (11) and two vertical profiles (13), and the transverse profiles (11) and the vertical profiles (13) are fixedly connected to each other via a connecting structure (12).

3. The expansion joint device for energy-saving curtain wall glass according to claim 2, characterized in that: The connecting structure (12) comprises a connecting block 1 (121), a connecting slot 1 (122), a fixing screw (123), a connecting block 2 (124), a connecting slot 2 (125) and a connecting clamping block (126); The connecting block 1 (121) and the connecting block 2 (124) are respectively fixedly connected to the outside of the connection between the corresponding horizontal profile (11) and the vertical profile (13), and the connecting block 1 (121) and the connecting block 2 (124) are respectively provided with a connecting groove 1 (122) and a connecting groove 2 (125) at the center of the outer side; One side of the connecting block (126) is fixedly connected to the inside of the first connecting slot (122) via a plurality of fixing screws (123), and the other side of the connecting block (126) is fixedly connected to the inside of the second connecting slot (125) via a plurality of fixing screws (123).

4. The expansion joint device for energy-saving curtain wall glass according to claim 1, characterized in that: The structure of the buffer device 2 (6) is consistent with that of the buffer device 1 (3), and the buffer device 1 (3) includes an outer shell 1 (31), an inner cavity 1 (32), a spring 1 (33), a movable block 1 (34) and a limiting convex groove 1 (35); The outer shell (31) is provided with an inner cavity (32) therein; The outer portion of the upper side of the movable block 1 (34) is movably connected to the inner portion of the inner cavity 1 (32), a spring 1 (33) is provided between the inner portion of the upper side of the movable block 1 (34) and the upper side of the inner cavity 1 (32), and limiting convex grooves 1 (35) are provided on both sides of the upper side of the movable block 1 (34).

5. The expansion joint device for energy-saving curtain wall glass according to claim 1, characterized in that: The corner expansion joint mechanism (4) comprises a first buffer connection mechanism (41), a corner slot seat (42), a second buffer connection mechanism (43) and a connection device (44); Both sides of the inner side of the transverse slot seat (2) are fixedly connected with a buffer connection mechanism (41); The two inner sides of the vertical slot seat (5) are fixedly connected with a second buffer connection mechanism (43); The corner slot seat (42) is movably connected to the inner corner position of the outer frame structure (1), and the outer side of the corner slot seat (42) is respectively connected to the buffer connection mechanism 1 (41) and the buffer connection mechanism 2 (43), and both ends of the corner slot seat (42) are connected to the ends of the horizontal slot seat (2) and the vertical slot seat (5) through the connection device (44).

6. The expansion joint device for energy-saving curtain wall glass according to claim 5, characterized in that: The structure of the second buffer connection mechanism (43) is consistent with that of the first buffer connection mechanism (41), and the first buffer connection mechanism (41) includes a second outer shell (411), a second inner cavity (412), a second spring (413), a second movable block (414), a second limiting convex groove (415), a slider (416) and a guide groove (417); The second outer shell (411) is provided with a second inner cavity (412); The outer portion of the upper side of the movable block 2 (414) is movably connected to the inner portion of the inner cavity 2 (412), a spring 2 (413) is provided between the inner portion of the upper side of the movable block 2 (414) and the upper side of the inner cavity 2 (412), and two limiting convex grooves 2 (415) are provided on both sides of the upper side of the movable block 2 (414); The slider (416) is fixedly connected to the bottom of the movable block 2 (414), the outside of the movable block 2 (414) is movably connected to the inside of the guide groove (417), and the guide groove (417) is opened on the outer side of the corner slot seat (42).

7. The expansion joint device for energy-saving curtain wall glass according to claim 6, characterized in that: The guide groove (417) is a T-shaped guide groove and matches the outside of the slider (416).

8. The expansion joint device for energy-saving curtain wall glass according to claim 5, characterized in that: The connecting device (44) includes a connecting housing (441), a connecting cavity (442), a sliding seat (443), a guide block (444), a connecting groove seat (445), and a sliding groove (446); The connecting shell (441) is fixedly connected to the end of the corner slot seat (42), and a connecting cavity (442) is provided inside the connecting shell (441); One side of the slide (443) is movably connected to the inside of the connecting cavity (442), and the other end of the slide (443) is fixedly connected to a guide block (444); The connecting groove seat (445) is fixedly connected to the end of the transverse slot seat (2), and a sliding groove (446) is provided on the left side of the connecting groove seat (445), and the interior of the sliding groove (446) is movably connected to the exterior of the guide block (444).

9. The expansion joint device for energy-saving curtain wall glass according to claim 8, characterized in that: The slide groove (446) is a T-shaped slide groove and matches the outside of the guide block (444).

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