Building expansion joint connecting structure

Abstract

The utility model discloses a building expansion joint connecting structure, belongs to the technical field of building structures, is used for connecting building main bodies located on the two sides of an expansion joint correspondingly, and comprises an expansion unit and a rubber waterproof part located below the expansion unit. The telescopic unit can contract along with approaching of the two building bodies and extend along with departing of the two building bodies, the rubber waterproof part is fixed to the bottom of the telescopic unit through the connecting unit, the connecting unit comprises a connecting piece, and the connecting piece comprises a connecting body and a first end and a second end which are located on the two sides of the connecting body respectively. The rubber waterproof piece is connected with the connecting body and provided with a drainage end close to the first end, and the connecting piece is provided with a first position and a second position. The liquid is prevented from gathering and staying on the rubber waterproof part for a long time, the phenomenon of permanent structural deformation of the rubber waterproof part caused by long-term pressure application of the liquid is reduced, the structural stability of the rubber waterproof part is improved, and therefore the service life of the rubber waterproof part is prolonged.

Description

Technical Field

[0001] The present application belongs to the technical field of building structures, and in particular relates to a building expansion joint connection structure. Background Art

[0002] A building expansion joint is a structural joint set at an appropriate position along the construction joint direction of a building or structure to prevent cracks or damage to the structure due to climate and temperature changes (thermal expansion and contraction). An expansion joint divides building components above the foundation, such as walls, floors, and roofs (except wooden roofs), into two independent parts, allowing the building or structure to expand and contract horizontally along the length.

[0003] The buildings on both sides of the expansion joint are connected by an expansion joint connection structure. The expansion joint connection structure includes a expansion unit. When the two adjacent building bodies move closer or farther away from each other due to thermal expansion and contraction, the expansion unit expands and contracts to adapt to the change in the distance between the two. Since the expansion unit is not a closed component, liquids such as rainwater will leak into the expansion joint connection structure through the expansion unit, which is easy to cause rust to the expansion joint connection structure, or cause water intrusion to the main body of the building. Especially in some areas with relatively harsh environmental conditions, acid rain may be formed under the influence of the environment, which is easy to corrode the concrete components, causing hardening and cavitation of the outer surface of the concrete, affecting the structural strength of the building. In some cold areas with large temperature differences, it may even cause freeze-thaw cycles in the main body of the building, thereby affecting the structural life of the building. Therefore, it is necessary to set a waterproof part under the expansion unit to prevent water from leaking into the space below the waterproof part. However, the waterproof part in the existing expansion joint connection structure can only block the water and cannot discharge the water in time. The residual water on the waterproof part is slowly dissipated by evaporation of water, which affects the service life of the waterproof part in the long run, thereby causing the waterproof performance of the expansion joint connection structure.

[0004] To solve this technical problem, some expansion joint connection structures are configured to open water diversion pipes in the building main body on both sides of the waterproof member, one end of the water diversion pipe is connected to the waterproof member, and the other end is provided with a drainage outlet leading to the outside of the building main body. However, this inevitably requires cutting grooves on the building main body to form the water diversion pipe, which makes the construction complicated. In addition, when installing the expansion joint connection structure, it is necessary to accurately align the relative positions of the waterproof member and the water diversion pipe, which increases the difficulty of assembling the expansion joint connection structure. Utility Model Content

[0005] The present application provides an expansion joint connection structure to solve the technical problems of short waterproof life and high difficulty in assembling the traditional expansion joint connection structure.

[0006] The technical solution adopted in this application is:

[0007] A building expansion joint connection structure is used to connect building bodies located on both sides of the expansion joint, comprising a telescopic unit and a rubber waterproof member located below the telescopic unit, wherein the telescopic unit can shrink as the two building bodies approach each other and expand as the two building bodies move away from each other, and is characterized in that the rubber waterproof member is fixed to the bottom of the telescopic unit through a connection unit, the connection unit comprises a connection member, the connection member comprises a first end and a second end of a connection body located on both sides of the connection body, the rubber waterproof member is connected to the connection body and has a drainage end close to the first end, the connection member has a first position and a second position, when the connection member is in the first position, the first end is flush with the second end in vertical height, when the connection member is in the second position, the first end is lower than the second end in vertical height, the connection member switches from the first position to the second position when subjected to pressure to drive the rubber waterproof member to tilt, and the projection of the drainage end in the vertical direction falls on the outside of the building body.

[0008] The expansion joint connection structure described in this application also includes the following additional technical features:

[0009] The second end is rotatably connected to the telescopic unit, the first end can be vertically displaced, and the first end can be rotated around the second end to switch the connecting member between the first position and the second position.

[0010] The connecting unit comprises an elastic telescopic member connected to the first end, and the elastic telescopic member is tightened or loosened as the connecting member switches between the first position and the second position.

[0011] The connecting unit comprises a supporting plate extending in a horizontal direction and located below the connecting member, and the elastic telescopic member is installed on the supporting plate and abuts against the bottom of the first end portion.

[0012] The connecting unit also includes a fixed seat, one of the fixed seat and the second end is provided with a rotating protrusion, and the other is provided with a rotating groove adapted to the rotating protrusion, and the first end is rotated around the fixed seat through the rotational cooperation between the rotating protrusion and the rotating groove, thereby realizing the switching of the connecting member between the first position and the second position.

[0013] The fixing seat is installed at the bottom of the telescopic unit.

[0014] The connecting body is provided with an inserting groove along the extending direction of the connecting member, and the rubber waterproof member is inserted into the inserting groove and is interference-fitted with the inserting groove.

[0015] There are two connecting members located on both sides of the rubber waterproof member. The rubber waterproof member includes a fixing portion connected to the connecting member and a water-carrying portion located between the two fixing portions. The water-carrying portion is recessed downward to make the rubber waterproof member present a U-shaped structure.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0017] 1. The building expansion joint connection structure of the present application includes a telescopic unit and a rubber waterproof member located below the telescopic unit. The telescopic unit is used to connect two adjacent building bodies. When rainwater or other liquid flows into the expansion joint from the telescopic unit, the water flow can be blocked by the rubber waterproof member and cannot continue to fall, thereby preventing the water flow from eroding the remaining components of the expansion joint or the building body, providing a guarantee for maintaining the structural strength of the building body, and reducing the possibility of water eroding the expansion joint components. In addition, by providing a connection unit including a connector, and connecting the rubber waterproof member to the connection body of the connector, the rubber waterproof member can be tilted as the connector moves between the first position and the second position. In this way, when the rubber waterproof member carries the liquid flowing from the telescopic unit, the rubber waterproof member and the liquid it carries cause pressure on the connector, and the connector moves from the first position to the second position under the pressure, so that the height of the first end is lower than the second end, and the connection body is tilted, and the rubber waterproof member connected to the connection body is tilted accordingly, and the liquid carried on the rubber waterproof member is discharged from the drain end under the action of its own gravity. In this way, on the one hand, the occurrence of loose waterproofing caused by excessive liquid pressure on the rubber waterproof part is avoided, which helps to improve the waterproof effect of the rubber waterproof part; on the other hand, it avoids the liquid from gathering and staying on the rubber waterproof part for a long time, thereby reducing the load pressure of the liquid on the rubber waterproof part, and reducing the occurrence of permanent structural deformation of the rubber waterproof part caused by long-term pressure of the liquid, which helps to improve the structural stability of the rubber waterproof part, thereby improving the service life of the rubber waterproof part; furthermore, since the expansion joint connection structure of the present application is provided with a connecting part, and the rubber waterproof part is driven to tilt by switching the position of the connecting part, so as to discharge the liquid on the rubber waterproof part, there is no problem of the installation position of the rubber waterproof part in the traditional technology during the assembly process, and there is no problem of aligning the rubber waterproof part with the water diversion pipeline, which greatly improves the assembly rate of the expansion joint connection structure; the present application adopts rubber waterproof parts for waterproofing treatment, on the one hand, because the waterproof parts made of rubber material have good waterproof performance and will not be corroded by water and leak during the normal service life; on the other hand, the rubber waterproof parts do not have rust, oxidation and other phenomena, and can stably perform the waterproof function.

[0018] 2. As a preferred embodiment of the present application, the second end is rotatably connected to the telescopic unit, the first end can undergo vertical displacement, and the first end can rotate around the second end to switch the connector between the first position and the second position. In this way, the first end can rotate around the second end, which, on the one hand, simplifies the structural design of the connector, so that the connector can be switched between the first position and the second position more easily; on the other hand, it enhances the connector's sensitivity to pressure, so that when the rubber waterproof part carries less liquid, the connector can deflect under the action of pressure, thereby driving the rubber waterproof part to tilt accordingly, so as to discharge the liquid thereon, avoid a large amount of liquid accumulation in the rubber waterproof part, and help to increase the service life of the rubber waterproof part.

[0019] 3. As a preferred embodiment of the present application, the connecting unit includes an elastic elastic member connected to the first end, and the elastic elastic member is tightened or loosened as the connecting member switches between the first position and the second position. In this way, when the rubber waterproof member carries liquid and thus applies pressure to the connecting member, the connecting member moves from the first position to the second position, and the elastic elastic member is deformed under the pressure of the first end. When the liquid on the rubber waterproof member is finished, the force applied to the elastic elastic member gradually decreases. At this time, the elastic elastic member will be reset and deformed under its own elasticity, thereby driving the movement of the connecting member from the second position to the first position, and then the rubber waterproof member installed on the connecting member switches from the tilted state to the horizontal state, so that the rubber waterproof member can maintain a long-term horizontal state when not carrying liquid, avoiding the self-deformation caused by the center of gravity offset caused by the long-term tilt of the rubber waterproof member, which helps to maintain the structural stability of the rubber waterproof member and further improve the service life of the rubber waterproof member.

[0020] 4. As a preferred embodiment of the present application, the connection body is provided with a plug-in groove along the extension direction of the connection piece, and the rubber waterproof piece is inserted into the plug-in groove and has an interference fit with the plug-in groove. With such a configuration, when installing the rubber waterproof piece, it is only necessary to insert the rubber waterproof piece into the plug-in groove, eliminating the need for separately setting up installation components for installing the rubber waterproof piece, which helps to optimize the structural design of the building expansion joint connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 This is a structural schematic diagram of a building expansion joint connection structure in one implementation manner of the present application;

[0023] Figure 2 for Figure 1 A magnified view of part A;

[0024] Figure 3 This is a schematic diagram of the structure of a connecting member in one embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of the structure of a fixing seat in one embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the structure of a rubber waterproof component in one embodiment of the present application.

[0027] in:

[0028] 1. The main body of the building;

[0029] 2 telescopic units;

[0030] 3 rubber waterproof part, 31 water discharge end, 32 fixing part, 33 water carrying part;

[0031] 4 connecting member, 41 first end, 42 second end, 43 connecting body, 44 plug-in groove;

[0032] 5. Elastic expansion parts;

[0033] 6. Support plate;

[0034] 7 fixed seat;

[0035] 8 rotating protrusion;

[0036] 9Turn the groove. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0039] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0042] like Figures 1 to 5 As shown, a building expansion joint connection structure is used to connect building bodies 1 located on both sides of the expansion joint, including a telescopic unit 2 and a rubber waterproof member 3 located below the telescopic unit 2, wherein the telescopic unit 2 can shrink as the two building bodies 1 approach each other and expand as the two building bodies 1 move away from each other, and is characterized in that the rubber waterproof member 3 is fixed to the bottom of the telescopic unit 2 through a connecting unit, the connecting unit includes a connecting member 4, the connecting member 4 includes a connecting body 43, a first end 41 and a second end 42 located on both sides of the connecting body 43, and ... The rubber waterproof component 3 is connected to the connecting body 43 and has a drain end 31 close to the first end 41. The connecting component 4 has a first position and a second position. When the connecting component 4 is in the first position, the first end 41 is flush with the second end 42 in vertical height. When the connecting component 4 is in the second position, the first end 41 is lower than the second end 42 in vertical height. When the connecting component 4 is under pressure, it switches from the first position to the second position to drive the rubber waterproof component 3 to tilt. The projection of the drain end 31 in the vertical direction falls on the outside of the building body 1.

[0043] The building expansion joint connection structure of the present application includes a telescopic unit 2 and a rubber waterproof member 3 located therebelow. The telescopic unit 2 is used to connect two adjacent building bodies 1. When rainwater or other liquid flows into the expansion joint from the telescopic unit 2, the water flow can be blocked by the rubber waterproof member 3 and cannot continue to fall, thereby preventing the water flow from eroding the remaining components of the expansion joint or the building body 1, providing a guarantee for maintaining the structural strength of the building body 1, and reducing the possibility of water eroding the expansion joint components. In addition, by providing a connecting unit including a connecting member 4, and connecting the rubber waterproof member 3 to the connecting body 43 of the connecting member 4, the rubber waterproof member 3 can be tilted as the connecting member 4 moves between the first position and the second position. In this way, when the rubber waterproof member 3 carries the liquid flowing from the telescopic unit 2, the rubber waterproof member 3 and the liquid it carries cause pressure on the connecting member 4, and the connecting member 4 moves from the first position to the second position under the action of the pressure, so that the height of the first end 41 is lower than the second end 42, and the connecting body 43 is tilted. The rubber waterproof part 3 connected to the connecting body 43 tilts accordingly, and the liquid carried on the rubber waterproof part 3 is discharged from the drain end 31 under the action of its own gravity; in this way, on the one hand, the occurrence of the phenomenon of loose waterproofing caused by excessive liquid pressure on the rubber waterproof part 3 is avoided, which helps to improve the waterproof effect of the rubber waterproof part 3; on the other hand, it avoids the liquid from gathering and staying on the rubber waterproof part 3 for a long time, thereby reducing the load pressure of the liquid on the rubber waterproof part 3, and reducing the occurrence of permanent structural deformation of the rubber waterproof part due to long-term pressure of the liquid, which helps to improve the structural stability of the rubber waterproof part 3, thereby improving the service life of the rubber waterproof part 3; furthermore, since the expansion joint connection structure of the present application is provided with a connecting part 4, and the rubber waterproof part 3 is driven to tilt by switching the position of the connecting part 4, thereby discharging the liquid on the rubber waterproof part 3, there is no problem of the installation position of the rubber waterproof part 3 in the traditional technology during the assembly process, and there is no problem of aligning the rubber waterproof part 3 with the water diversion pipeline, which greatly improves the assembly rate of the expansion joint connection structure. The present application adopts rubber waterproof parts 3 for waterproofing. On the one hand, this is because the waterproof parts made of rubber material have good waterproof performance and will not be corroded by water and leak during the normal service life; on the other hand, the rubber waterproof parts 3 do not have rust, oxidation and other phenomena, and can stably perform the waterproof function.

[0044] The present application does not limit the switching mode of the connecting member 4 between the first position and the second position, and it can adopt any one of the following embodiments:

[0045] Embodiment 1: The first end 41 is connected to the telescopic unit 2 through a first elastic member, and the second end 42 is connected to the telescopic unit 2 through a second elastic member. The stiffness coefficient of the first elastic member is greater than the stiffness coefficient of the second elastic member. When the connecting member 4 is subjected to pressure, the first end 41 and the second end 42 apply pressure to the first elastic member and the second elastic member respectively. Since the stiffness coefficient of the first elastic member is greater than the stiffness coefficient of the second elastic member, the deformation of the first elastic member is smaller than that of the second elastic member, so that the first end 41 and the second end 42 are subjected to unbalanced force, thereby realizing the movement of the connecting member 4 from the first position to the second position.

[0046] Embodiment 2: The second end 42 is rotatably connected to the telescopic unit 2, the first end 41 can be vertically displaced, and the first end 41 can be rotated around the second end 42 to switch the connector 4 between the first position and the second position. In this way, the first end 41 can be rotated around the second end 42, which simplifies the structural design of the connector 4 on the one hand, so that the connector 4 can be easily switched between the first position and the second position; on the other hand, it enhances the sensitivity of the connector 4 to pressure, so that when the rubber waterproof part 3 carries less liquid, the connector 4 can be deflected under the action of pressure, thereby driving the rubber waterproof part 3 to tilt accordingly, so as to discharge the liquid on it, avoid a large amount of liquid accumulation in the rubber waterproof part 3, and help to improve the service life of the rubber waterproof part 3.

[0047] As a preferred embodiment of the second implementation mode, Figure 1 , Figure 2 As shown, the connection unit includes an elastic elastic member 5 connected to the first end 41, and the elastic elastic member 5 is tightened or loosened as the connection member 4 switches between the first position and the second position. In this way, when the rubber waterproof member 3 carries liquid and thus applies pressure to the connection member 4, the connection member 4 moves from the first position to the second position, and the elastic elastic member 5 is deformed under the pressure of the first end 41. When the liquid on the rubber waterproof member 3 is finished, the force applied to the elastic elastic member 5 gradually decreases. At this time, the elastic elastic member 5 will be reset and deformed under its own elasticity, thereby driving the connection member 4 to move from the second position to the first position, and then the rubber waterproof member 3 installed on the connection member 4 switches from the tilted state to the horizontal state, so that the rubber waterproof member 3 can maintain a long-term horizontal state when not carrying liquid, avoiding the self-deformation caused by the center of gravity offset caused by the long-term tilt of the rubber waterproof member 3, which helps to maintain the structural stability of the rubber waterproof member 3 and further improve the service life of the rubber waterproof member 3.

[0048] This embodiment does not limit the installation position and installation method of the elastic telescopic member 5, and it can adopt any one of the following examples:

[0049] Example 1: One end of the elastic telescopic member 5 is mounted on the bottom of the telescopic unit 2 , and the other end is connected to the second end 42 .

[0050] Example 2: Figure 2 As shown, the connection unit includes a support plate 6 extending in the horizontal direction and located below the connection member 4, and the elastic telescopic member 5 is installed on the support plate 6 and abuts against the bottom of the first end portion 41. By setting the support plate 6, a mounting position is provided for the elastic telescopic member 5. When the rubber liquid discharge member does not carry liquid, the elastic telescopic member 5 only bears part of the pressure brought by the connection member 4 and the rubber liquid discharge member. Compared with Example 1, the elastic telescopic member 5 in this example will not be in a tensile state for a long time, which helps to maintain its own elasticity and reduce the loss of elastic deformation ability caused by long-term tension.

[0051] As a preferred embodiment of the present application, Figure 3 , Figure 4 As shown, the connection unit also includes a fixing seat 7, one of the fixing seat 7 and the second end 42 is provided with a rotating protrusion 8, and the other is provided with a rotating groove 9 adapted to the rotating protrusion 8. The first end 41 is rotated around the fixing seat 7 by the rotating cooperation between the rotating protrusion 8 and the rotating groove 9, thereby realizing the switching of the connecting member 4 between the first position and the second position. By providing the rotating protrusion 8 and the rotating groove 9, the rotation of the connecting member 4 is smoother and smoother, and the friction resistance of the connecting member 4 when rotating around the second end 42 is reduced, which helps to improve the sensitivity of the connecting member 4 to pressure. When the rubber waterproof member 3 carries less liquid, the connecting member 4 can be deflected under the pressure to drive the rubber waterproof member 3 to rotate to pour the water liquid out of the building body 1.

[0052] As a preferred embodiment of the present application, the fixing seat 7 is installed at the bottom of the telescopic unit 2. In this way, the telescopic unit 2 not only serves to connect two adjacent building bodies 1, but also serves to provide an installation position for the fixing seat 7, which further integrates the functions and optimizes the structural design of the building expansion joint connection structure.

[0053] As a preferred embodiment of the present application, Figure 2 , Figure 3As shown, the connecting body 43 is provided with a plug-in groove 44 along the extending direction of the connecting member 4, and the rubber waterproof member 3 is inserted into the plug-in groove 44 and is interference-fitted with the plug-in groove 44. With such a configuration, when installing the rubber waterproof member 3, it is only necessary to insert the rubber waterproof member 3 into the plug-in groove 44, eliminating the need for separately setting up installation components for installing the rubber waterproof member 3, which helps to optimize the structural design of the building expansion joint connection structure.

[0054] As a preferred embodiment of the present application, Figure 1 , Figure 5 As shown, there are two connecting members 4 located on both sides of the rubber waterproof member 3, and the rubber waterproof member 3 includes a fixing portion 32 connected to the connecting member 4 and a water-carrying portion 33 located between the two fixing portions 32, and the water-carrying portion 33 is recessed downward to make the rubber waterproof member 3 present a U-shaped structure. The rubber waterproof member 3 is set as a U-shaped structure, which improves the water-holding capacity of the rubber waterproof member 3, prevents the occurrence of overflow from the side of the rubber waterproof member 3 due to excessive influx of liquid, and helps to improve the waterproof performance of the rubber waterproof member 3.

[0055] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0056] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0057] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A building expansion joint connection structure, used to connect building bodies located on both sides of the expansion joint, comprising a telescopic unit and a rubber waterproof member located below the telescopic unit, wherein the telescopic unit can shrink as the two building bodies approach and expand as the two building bodies move away, characterized in that: The rubber waterproof member is fixed to the bottom of the telescopic unit through a connecting unit, the connecting unit includes a connecting member, the connecting member includes a first end and a second end of a connecting body respectively located on both sides of the connecting body, the rubber waterproof member is connected to the connecting body and has a drainage end close to the first end, the connecting member has a first position and a second position, when the connecting member is in the first position, the first end is flush with the second end in vertical height, when the connecting member is in the second position, the first end is lower than the second end in vertical height, the connecting member switches from the first position to the second position when subjected to pressure to drive the rubber waterproof member to tilt, and the projection of the drainage end in the vertical direction falls on the outside of the building body.

2. The building expansion joint connection structure according to claim 1, characterized in that: The second end is rotatably connected to the telescopic unit, the first end can be vertically displaced, and the first end can be rotated around the second end to switch the connecting member between the first position and the second position.

3. The building expansion joint connection structure according to claim 2, characterized in that: The connecting unit comprises an elastic telescopic member connected to the first end, and the elastic telescopic member is tightened or loosened as the connecting member switches between the first position and the second position.

4. The building expansion joint connection structure according to claim 3, characterized in that: The connecting unit comprises a supporting plate extending in a horizontal direction and located below the connecting member, and the elastic telescopic member is installed on the supporting plate and abuts against the bottom of the first end portion.

5. The building expansion joint connection structure according to claim 1, characterized in that: The connecting unit also includes a fixed seat, one of the fixed seat and the second end is provided with a rotating protrusion, and the other is provided with a rotating groove adapted to the rotating protrusion, and the first end is rotated around the fixed seat through the rotational cooperation between the rotating protrusion and the rotating groove, thereby realizing the switching of the connecting member between the first position and the second position.

6. The building expansion joint connection structure according to claim 5, characterized in that: The fixing seat is installed at the bottom of the telescopic unit.

7. The building expansion joint connection structure according to claim 1, characterized in that: The connecting body is provided with an inserting groove along the extending direction of the connecting member, and the rubber waterproof member is inserted into the inserting groove and is interference-fitted with the inserting groove.

8. The building expansion joint connection structure according to claim 1, characterized in that: There are two connecting members located on both sides of the rubber waterproof member. The rubber waterproof member includes a fixing portion connected to the connecting member and a water-carrying portion located between the two fixing portions. The water-carrying portion is recessed downward to make the rubber waterproof member present a U-shaped structure.

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