A connecting mechanism for connecting an elevator shaft and a building

Abstract

The present invention discloses a connection mechanism for connecting an elevator shaft and a building, which relates to the technical field of installing elevators in existing buildings; it includes a corridor main body and a connecting steel plate. One end of the corridor body is fixed to the elevator shaft, and the other end has a gap with the building ring beam of the building. At least one end of the connecting steel plate in the horizontal direction is provided with a plurality of long holes with long axes extending towards the corridor body, and a first bolt can pass through the long holes to fix one end of the connecting steel plate to the building ring beam or the corridor body. When uneven settlement occurs, the connecting steel plate will deform to release stress to protect the elevator shaft and the building ring beam. When the uneven settlement is large, relative friction will occur between the connecting steel plate and the building ring beam, and the bolt will slide in the long hole to prevent the connecting steel plate from being pulled off.

Description

Technical Field

[0001] The present invention belongs to the technical field of adding elevators to existing buildings, and particularly relates to a connecting mechanism for connecting an elevator shaft and a building. Background Art

[0002] At present, people's requirements for the quality of life are getting higher and higher. For some existing old buildings, elevators need to be added outside the buildings.

[0003] The added elevator usually includes equipment such as an elevator shaft and a car running in the elevator shaft. The elevator shaft is connected to the building's house ring beam through a connecting mechanism. When the car reaches the target floor height, the car door opens, and people enter the building through the connecting mechanism.

[0004] See Figure 1 , generally, the connecting mechanism is composed of a corridor body A2, a bracket A3, etc. One end of the corridor body A2 is fixed on an elevator shaft (not shown), and the other end is fixedly connected to the bracket A3 through bolts. The bracket A3 generally has a T-shaped structure. The vertical part corresponding to the T-shaped structure is used to connect the corridor body A2; the horizontal part corresponding to the T-shaped structure is fixed to the house ring beam A1 through chemical structure bolts A4.

[0005] Adding an elevator is a device added on the original soil foundation. After the elevator added to the old building is put into use, the relatively soft soil foundation under it will sink to a certain extent over time and under the action of the gravity of the added elevator. For the original building, since its own settlement has been basically stable after existing for many years, the settlement speeds of the added elevator shaft and the building wall cannot reach synchronization. Especially in areas with relatively soft geology, the settlement height difference between the building and the elevator shaft is greater, which causes the connecting mechanism connecting the added elevator shaft and the wall to be damaged, tearing the building wall and bringing potential safety hazards to the stable and safe operation of the added elevator.

[0006] Specifically, as Figure 1 shown in the connection structure, after different settlements occur between the building and the elevator shaft, the elevator shaft is likely to apply tensile stress and bending moment to the house ring beam A1 through the chemical structure bolts A4, which will damage the structure of the house ring beam.

[0007] In addition, due to the long-term application of tensile and bending stresses by the chemical structure bolts A4 on the house ring beam A1, after a long time, the cement of the house ring beam A1 is likely to powder and peel at the position corresponding to the chemical structure bolts A4, and the corridor main body A2 is likely to be at risk of detaching from the house ring beam A1.

[0008] Considering that the added elevator is usually exposed outside the building, in extreme cases such as earthquakes and strong winds, there may be a risk of the connection between the added elevator and the original building failing, which will not only cause huge economic losses, but also cause personal injuries to elevator passengers, pedestrians, etc.

[0009] Therefore, in the field of adding elevators, a connection mechanism is needed that can improve the connection relationship between the elevator shaft and the building. Summary of the Invention

[0010] One of the purposes of the present invention is to provide a connection mechanism for connecting an elevator shaft and a building, which will not damage the building ring beam structure of the building, and the connection mechanism itself is not easily damaged, has good stability and is not easily invalidated.

[0011] To achieve the above purpose, the present invention adopts the following technical solutions:

[0012] The connection mechanism includes a corridor body and a connection steel plate. One end of the corridor body is fixed to the elevator shaft, and the other end has a gap with the building ring beam of the building. The connection steel plate is arranged horizontally, one end of which is connected to the end of the corridor body close to the building, and the other end is connected to the building ring beam. At least one end of the connection steel plate is provided with a plurality of long holes, the long axis of the long holes extends towards the direction of the corridor body, and the first bolt can pass through the long holes to fix one end of the connection steel plate to the building ring beam or the corridor body.

[0013] According to the above, the connection steel plate connects the building ring beam and the elevator shaft in a "flat-laying" form. When uneven settlement occurs between the elevator shaft and the building, the connection steel plate is prone to bending deformation. At the same time, a plurality of long holes are provided on the connection steel plate. When uneven settlement occurs between the elevator shaft and the building, the connection steel plate will deform to release stress. When the deformation is large, the first bolt passing through the long holes will slide in the long holes to further release stress. The deformation of the connection steel plate and the sliding of the first bolt will ensure that when asymmetric settlement occurs between the elevator shaft and the building, the building (building ring beam) will not be damaged and the connection steel plate will not be pulled off or broken.

[0014] Preferably, the long holes of the connection steel plate are only provided at the end close to the building ring beam. In the event of asymmetric settlement, this method is more likely to avoid generating tension on the building ring beam.

[0015] Preferably, the plurality of long holes are uniformly arranged along the short axis direction, and the connection steel plate is fixed to the lower surface of the building ring beam.

[0016] Preferably, the connection steel plate is fixed to the lower surface of the corridor body.

[0017] Preferably, a round hole is provided at one end of the connecting steel plate, and a second bolt can pass through the round hole to fix the connecting steel plate on the corridor body.

[0018] Preferably, the connecting mechanism further includes an upper friction steel plate and a lower friction steel plate. The upper friction steel plate is formed with an upper elongated hole matching the round hole and an upper round hole matching the elongated hole, and the lower friction steel plate is formed with a lower elongated hole matching the round hole and a lower round hole matching the elongated hole. The upper elongated hole, the lower elongated hole and the elongated hole have the same extending direction, and the upper friction steel plate and the lower friction steel plate can clamp the connecting steel plate.

[0019] Preferably, the upper friction steel plate is arranged between the connecting steel plate and the lower surface of the corridor body, and the length of the upper elongated hole is less than the length of the elongated hole, and the length of the elongated hole is less than the length of the lower elongated hole.

[0020] Preferably, a wrapping mechanism is provided between the corridor body and the house ring beam for pressing the upper friction steel plate, the lower friction steel plate and the connecting steel plate against each other.

[0021] Preferably, the wrapping mechanism includes two reinforcing plates clamping the upper friction steel plate, the lower friction steel plate and the connecting steel plate, a stud that can pass through the two reinforcing plates, and nuts that can be threadedly connected to the upper and lower ends of the stud to prevent the reinforcing plates from bulging. The upper friction steel plate, the connecting steel plate and the lower friction steel plate are all provided with avoidance elongated holes for avoiding the stud, and the extending direction of the avoidance elongated holes is the same as the extending direction of the elongated hole of the connecting steel plate.

[0022] Preferably, the extending length of the avoidance elongated hole is at least greater than the extending length of one of the elongated hole, the upper elongated hole and the lower elongated hole.

[0023] Preferably, a crack arresting plate is further included, and the crack arresting plate is laid between the upper surfaces of the corridor body and the ring beam. The crack arresting plate is formed with a downwardly concave groove.

[0024] Preferably, the material of the connecting steel plate is mild steel.

[0025] The beneficial effects of the present invention are as follows: The present invention provides a connecting mechanism for connecting an elevator shaft and a building, which is not easily damaged and has earthquake resistance. The connecting steel plate forms a stress relief plate. When different settlements occur in the foundation or the elevator or the building shakes, the connecting mechanism can maintain the stability and effectiveness of the connection. The connecting mechanism of the present invention also brings a special advantage, that is, in the case where the space for installing an elevator is extremely narrow, since no horizontal installation space is required, the connecting corridor can be designed very short, and the weight of the connecting corridor is mainly borne by the columns of the shaft. The connecting steel plate does not bear weight and can release stress at the same time. This is of great significance to the field of elevator installation under the condition that the space for installing an elevator is very limited and the corridors and facades of existing buildings cannot be modified. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic structural diagram of a connecting mechanism in the prior art.

[0027] Figure 2 FIG. is a schematic structural diagram of a connecting mechanism according to the first preferred embodiment of the present invention.

[0028] Figure 3 is Figure 2 top view of.

[0029] Figure 4 is Figure 2 enlarged view of the partial A in.

[0030] Figure 5 FIG. is a schematic structural diagram of a connecting mechanism according to the second preferred embodiment of the present invention.

[0031] Figure 6 is Figure 5 enlarged view of the partial B in.

[0032] Figure 7 FIG. is a partial enlarged view of a connecting mechanism of a third embodiment.

[0033] Figure 8 is Figure 7 top view of the upper friction steel plate of the connecting mechanism shown in.

[0034] Figure 9 is Figure 7 schematic diagram of the connecting steel plate of the connecting mechanism shown in.

[0035] Figure 10 is Figure 7 schematic diagram of the lower friction steel plate of the connecting mechanism shown in.

[0036] Figure 11 is Figure 7 schematic diagram of the reinforcing plate of the connecting mechanism shown in.

[0037] Figure 12 For Figure 7 the working schematic diagram of the connecting mechanism.

[0038] Explanation of the reference numerals in the drawings:

[0039] Corridor 1, building ring beam 2, connecting steel plate 3, long hole 4, first bolt 5, panel 6, corridor body 7, second bolt 8, upper flange plate 9', lower flange plate 9, upper friction steel plate 10, lower friction steel plate 11, upper long hole 12, lower long hole 13, reinforcing plate 14, stud 15, nut 16, escape long hole 17, elevator shaft 18, building 19, crack arrest plate 20, groove 21. Detailed implementation manners

[0040] Next, the inventive concept of the present invention will be described in detail with reference to the accompanying drawings. What is described here is only the preferred implementation manner according to the present invention, and those skilled in the art can think of other ways to implement the present invention based on the preferred implementation manner, and such other ways also fall within the scope of the present invention. In the following detailed description, directional terms such as "upper", "lower", "inner", "outer", "longitudinal", "transverse", etc. are used with reference to the directions described in the accompanying drawings. The components of the embodiments of the present invention can be placed in a variety of different directions, and the directional terms are for illustrative purposes and not restrictive.

[0041] See Figures 2 - 4 where Figure 2 shows the connecting mechanism according to the present invention and the elevator shaft and the building at both ends of the connecting mechanism; Figure 3 shows Figure 1 the top view of Figure 4 shows Figure 2 the enlarged view of the partial A of

[0042] As Figures 2 - 4 shown, the connecting mechanism includes a corridor body 7 and a connecting steel plate 3, etc. One end of the corridor body 7 is fixed to the elevator shaft 18, and there is a gap between the other end and the building ring beam 2 of the building 19. The corridor body 7 can be Figures 2 - 4 the I-beam shown in

[0043] The connecting steel plate 3 of the connecting mechanism is horizontally arranged, with one end connected to one end of the corridor body 7 close to the building 19, and the other end connected to the building ring beam 2. At one end of the connecting steel plate 3 in the horizontal direction, there are a number of long holes 4 whose major axes extend towards the direction of the corridor body 7. The first bolt 5 can pass through the long holes 4 to fix one end of the connecting steel plate 3 to the building ring beam 2. At the other end of the connecting steel plate 3, there are round holes for cooperating with the second bolt 8. The second bolt 8 can pass through the round holes to fix one end of the connecting steel plate 3 on the lower flange plate 9 of the corridor body 7.

[0044] It should be understood that although the connecting steel plate 3 in this text is "horizontally arranged", however, it does not merely mean that the connecting steel plate 3 is arranged in an absolutely horizontal manner. In the case where the car exits on each floor are not flush with the building ring beam 2 of the corresponding floor, the connecting steel plate 3 is arranged in a slightly inclined manner relative to the horizontal plane, and the arrangement manner of the connecting steel plate 3 in this case still belongs to the "horizontal arrangement" defined by the present invention.

[0045] The multiple long holes 4 on the connecting steel plate 3 are evenly arranged along its minor axis direction. For example, as Figure 3 shown, each long hole 4 is arranged at equal intervals along its minor axis or in any other regular manner convenient for fixing the connecting steel plate 3 to the building ring beam 2. Of course, the number and orientation of the long holes can be arranged according to the actual situation, and they can be staggered along its major axis direction.

[0046] The connecting steel plate 3 is fixed to the lower surface of the building ring beam 2 or fixed to the lower surface of a flat plate member (not shown), where the flat plate member protrudes outward from the surface of the building ring beam 2 facing the corridor body 7. Preferably, when the connecting steel plate 3 is installed on the corresponding building ring beam 2, the first bolt 5 is located at the end of the long hole 4 close to the corridor body 7, which is particularly applicable to the scenario where the settlement amount of the elevator shaft 18 is greater than the settlement amount of the building 19.

[0047] In Figure 2 、 4 In the preferred embodiment, both ends of the connecting steel plate 3 are respectively fixed to the lower surface of the corridor body 7, the lower surface of the corridor body 7. In some cases, the connecting steel plate 3 can also be fixed to the upper surface of the corridor body 7, the upper surface of the building ring beam. It can also be arranged staggeredly, that is, one end is located on the upper surface of the corridor body, and the other end is located on the lower surface of the building ring beam, and vice versa. This will generate a height difference between the corridor and the ring beam, which can compensate for the originally possible height difference or form a step when there is no need to compensate for the height difference.

[0048] In Figures 2 - 4In the implementation manner, a solidified layer of types such as cement slurry is actually laid on the upper surface of the corridor body 7, and tiles and the like are laid above the corridor body 7 through the solidified layer to form the panel 6. The panel 6 and the corridor body 7 form the corridor 1.

[0049] There is a relatively small gap between the corridor body 7 and the building ring beam 2 of the house, and the panel 6 may not be laid between the upper surface of the corridor body 7 and the upper surface of the ring beam optionally. In some other embodiments, optionally, a panel 6 without an attached solidified layer (not shown) is laid between the upper surface of the corridor body 7 and the upper surface of the ring beam. This can prevent foreign objects from falling into the upper surface of the connecting steel plate 3 through the gap between the corridor body 7 and the ring beam, causing the connecting steel plate 3 to rust, or the situation of foreign object accumulation.

[0050] In Figures 5 - 6 In the second implementation manner shown, the panel 6 completely connects the upper surfaces of the corridor body 7 and the building ring beam 2 of the house. The part of the panel 6 located between the corridor body 7 and the building ring beam 2 is supported by a crack arrest plate 20 erected between the upper surfaces of the corridor body 7 and the building ring beam 2. The crack arrest plate 20 is optionally a steel plate.

[0051] See Figure 6 , the crack arrest plate 20 is formed with a downwardly concave groove 21. The groove 21 is optionally an arc-shaped structure. Preferably, the groove 21 is a triangular structure formed by bending downward.

[0052] Before laying the panel 6, a thin-walled film or the like can be laid on the upper surface of the groove 21 to prevent solidifying agents such as cement slurry from falling into the groove 21. In the case of unequal settlement between the elevator shaft 18 and the building 19 of the house, the groove 21 allows a relatively small amount of bending to occur between the crack arrest plate 20 above the corridor main body and the crack arrest plate 20 on the upper surface of the building ring beam 2, and also allows the crack arrest plate 20 to be slightly stretched. In the case of a slight bending or stretching of the crack arrest plate 20, the provided groove 21 allows the upper surface of the crack arrest plate 20 not to protrude upward, so the panel 6 will not be lifted upward by the crack arrest plate 20 during this process. Accordingly, after laying the above-mentioned crack arrest plate 20, even in the case of unequal settlement between the elevator shaft 18 and the building 19 of the house, the panel 6 will not warp upward.

[0053] In another laying method, before laying the panel 6, the inner wall surface of the groove 21 can be coated with materials such as an oil film that makes it difficult for the solidifying agent to closely adhere to the inner wall surface of the groove 21. This method can also ensure that the crack arrest plate 20 can be freely stretched and bent in the case of unequal settlement between the elevator shaft 18 and the building 19 of the house.

[0054] For the connecting steel plate 3 of the present invention, it is preferably made of mild steel that is easy to deform.

[0055] The following is combined withFigures 3 - 6 Describe the working principle of the connecting mechanism of this embodiment. When asymmetric settlement occurs between the building 19 and the elevator shaft 18, dislocation will occur between the building ring beam 2 and the connecting corridor. At this time, the connecting steel plate 3 will undergo corresponding deformation, and the connecting steel plate 3 releases stress to prevent damage to the connecting corridor. When the degree of asymmetric settlement is large, there is a large tensile force on the connecting steel plate 3, and the frictional force between the connecting steel plate 3 and the building ring beam 2 is not sufficient to resist the above tensile force. At this time, relative movement occurs between the connecting steel plate 3 and the building ring beam 2, and the bolt slides in the long hole 4, thereby further releasing the stress to prevent the building ring beam 2 or the connecting corridor from being pulled damaged.

[0056] In the present invention, the connecting steel plate 3 deforms during uneven settlement, thereby reducing the stress of the connecting corridor and the building ring beam 2, protecting the connecting corridor and the building ring beam 2. In addition, the design of the long hole 4 further improves the connection effectiveness of the connecting steel plate 3. When the settlement is large, the connecting steel plate 3 will not be pulled off.

[0057] The following is combined with Figures 7 - 12 Describe the third embodiment according to the present invention. Among them, the same parts as those corresponding to Figures 1 - 6 and their equivalent embodiments will not be described in detail, and the content of this part can be seen in the above description.

[0058] See Figure 7 , in this embodiment, the connecting mechanism further includes an upper friction steel plate 10 and a lower friction steel plate 11 respectively located above and below the connecting steel plate 3.

[0059] See Figure 8 The upper friction steel plate 10 shown, which is formed with an upper long hole 12 matching the round hole of the connecting steel plate 3 and an upper round hole matching the long hole 4 of the connecting steel plate 3.

[0060] See Figure 10 The lower friction steel plate 11 shown, which is formed with a lower long hole 13 matching the round hole of the connecting steel plate 3 and a lower round hole matching the long hole 4 of the connecting steel plate 3.

[0061] The upper long hole 12 of the upper friction steel plate 10 and the lower long hole 13 of the lower friction steel plate 11 are both in the same extending direction as the long hole 4 of the connecting steel plate 3. Below the connecting corridor body 7, the connecting steel plate 3 is clamped by the upper friction steel plate 10 and the lower friction steel plate 11.

[0062] In some preferred embodiments, the length of the upper long hole 12 of the upper friction steel plate 10 is set to be less than the length of the long hole 4 of the connecting steel plate 3, and the length of the long hole 4 is less than the length of the lower long hole 13 of the lower friction steel plate 11.

[0063] When the upper friction steel plate 10, the connecting steel plate 3, and the lower friction steel plate 11 are installed, preferably, the second bolt 8 is located at approximately the middle position in the major axis direction of the upper long hole 12 and the lower long hole 13.

[0064] See Figure 12 and in combination with Figure 7 , when asymmetric settlement occurs between the building 19 and the elevator hoistway 18, specifically, after the elevator hoistway 18 sinks relative to the building 19, the first bolt 5 first drives the left ends of the upper friction steel plate 10 and the lower friction steel plate 11 to move rightward respectively through the upper circular hole and the lower circular hole that cooperate with it. When the upper friction steel plate 10 and the lower friction steel plate 11 are moved rightward so that the left end of the upper long hole 12 (or the lower long hole 13) abuts against the second bolt 8, the second bolt 8 drives the right end of the connecting steel plate 3 to move leftward through the upper long hole 12 and the lower long hole 13 that cooperate with it. Relative friction is generated between the connecting steel plate 3 and the upper friction steel plate 10, relative friction is generated between the connecting steel plate 3 and the lower friction steel plate 11, and relative friction is generated between the left end of the upper friction steel plate 10 and the corridor. At this time, frictional force is relied on to block uneven settlement.

[0065] Since the length of the upper long hole 12 is the shortest, therefore, as the degree of uneven settlement increases, the end of the upper long hole 12 is the first to abut against the second bolt 8. See Figure 12 , at this time, there is no mutual friction between the upper friction steel plate 10 and the corridor, and the second bolt 8 directly pulls the upper friction steel plate 10, thereby making the effect of resisting uneven settlement better.

[0066] As the degree of uneven settlement continues to increase, the upper friction steel plate 10 is stretched, the right end of the connecting steel plate 3 continues to be pulled leftward, and the left end of the lower friction steel plate 11 continues to be pulled rightward. When the first bolt 5 abuts against the end of the long hole 4, the first bolt 5 pulls the connecting steel plate 3, and the effect of resisting uneven settlement is further increased. Similarly, when the degree of uneven settlement continues to increase, the end of the lower long hole 13 abuts against the second bolt 8, and the second bolt 8 pulls the lower friction steel plate 11.

[0067] In combination with Figure 7 , in some preferred embodiments, a wrapping mechanism for abutting the upper friction steel plate 10, the lower friction steel plate 11, and the connecting steel plate 3 against each other is provided between the corridor body 7 and the building ring beam 2.

[0068] See Figure 7 , 11 , the wrapping mechanism includes Figure 11Two reinforcing plates 14 as shown, a stud 15 capable of passing through the two reinforcing plates 14, and nuts 16 that can be threadedly connected to the upper and lower ends of the stud 15 to prevent the reinforcing plates 14 from bulging. The two reinforcing plates 14 are respectively located above the upper friction steel plate 10 and below the lower friction steel plate 11. When the stud 15 and the nuts 16 fasten and press the two reinforcing plates 14 against each other, the upper friction steel plate 10, the lower friction steel plate 11, and the connecting steel plate 3 are tightly clamped.

[0069] When the upper friction steel plate 10, the connecting steel plate 3, and the lower friction steel plate 11 are subjected to an axial extrusion force, the three steel plates may buckle outwards, resulting in the separation of the three steel plates from each other. It can be understood that the above-mentioned wrapping mechanism can prevent the above three steel plates from separating from each other. Since the wrapping mechanism can prevent the separation between the steel plates, it is possible to avoid the reduction of the seismic performance of the connecting mechanism caused by the decrease in the friction force between the steel plates in pairs.

[0070] See Figure 11 , in some embodiments, the through holes on the reinforcing plate 14 are arranged at its middle position. To ensure that the bolt can pass through the upper and lower reinforcing plates 14, see Figures 8 - 10 , the upper friction steel plate 10, the connecting steel plate 3, and the lower friction steel plate 11 are all provided with avoidance long holes 17 for avoiding the stud 15. Among them, the extending direction of the avoidance long hole 17 is the same as the extending direction of the long hole 4 of the connecting steel plate 3.

[0071] In other embodiments, the through holes on the reinforcing plate 14 are arranged on both sides in its width direction. At this time, the upper friction steel plate 10, the connecting steel plate 3, and the lower friction steel plate 11 may not be provided with avoidance long holes 17.

[0072] In some embodiments, the length of the avoidance long hole 17 is greater than the length of any of the long hole 4, the upper long hole 12, and the lower long hole 13.

[0073] In earthquake-prone areas, when an earthquake occurs, the elevator shaft 18 and the building 19 will move back and forth relative to each other, which will cause the upper friction steel plate 10 and the connecting steel plate 3 to rub against each other back and forth, and the lower friction steel plate 11 and the connecting steel plate 3 to rub against each other back and forth. During this process, the stud 15 will move within the avoidance long hole 17. The friction force between the upper friction steel plate 10, the lower friction steel plate 11, and the connecting steel plate 3 in pairs will consume a large amount of seismic energy. Therefore, this form of connecting mechanism can, to a certain extent, prevent the difference in settlement between the elevator shaft 18 and the building from further increasing, and reduce the destructive force of the earthquake on the building and the elevator shaft 18.

[0074] The above has described the implementation manner in which one end of the connecting steel plate 3 provided with the long hole 4 is set to be connected to the building ring beam 2. It should be understood that in some embodiments, the end of the connecting steel plate 3 provided with the long hole 4 can alternatively be set to be connected to the corridor body 7. In some other embodiments, long holes 4 are provided at both ends of the connecting steel plate 3 and are connected to the corresponding corridor body 7 and building ring beam 2.

[0075] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A connecting mechanism for connecting an elevator shaft and a building, characterized in that, the connecting mechanism comprises: a corridor body, one end of the corridor body is fixed to the elevator shaft, and the other end has a gap with the building ring beam of the building; and a connecting steel plate, the connecting steel plate is horizontally arranged, one end of which is connected to one end of the corridor body close to the building, and the other end is connected to the building ring beam, wherein at least one end of the connecting steel plate is provided with a plurality of oblong holes, the long axis of the oblong holes extends towards the direction of the corridor body, and a first bolt can pass through the oblong holes to fix the connecting steel plate to the building ring beam or the corridor body, the connecting steel plate is provided with the oblong holes only at one end, and circular holes are provided at the other end of the connecting steel plate. The connecting mechanism further comprises an upper friction steel plate and a lower friction steel plate. The upper friction steel plate is formed with an upper oblong hole matching the circular hole and an upper circular hole matching the oblong hole. The lower friction steel plate is formed with a lower oblong hole matching the circular hole and a lower circular hole matching the oblong hole. Wherein the extending directions of the upper oblong hole, the lower oblong hole and the oblong hole are the same, and the upper friction steel plate and the lower friction steel plate can clamp the connecting steel plate.

2. The connecting mechanism according to claim 1, characterized in that, the plurality of oblong holes are uniformly arranged along the short axis direction, and the connecting steel plate is fixed to the lower surface of the building ring beam.

3. The connecting mechanism according to claim 2, characterized in that, the connecting steel plate is fixed to the lower surface of the corridor body.

4. The connecting mechanism according to claim 1, characterized in that, the upper friction steel plate is arranged between the connecting steel plate and the lower surface of the corridor body, and the length of the upper oblong hole is less than the length of the oblong hole, and the length of the oblong hole is less than the length of the lower oblong hole.

5. The connecting mechanism according to claim 4, characterized in that, a wrapping mechanism for pressing the upper friction steel plate, the lower friction steel plate and the connecting steel plate against each other is arranged between the corridor body and the building ring beam.

6. The connecting mechanism according to claim 5, characterized in that, the wrapping mechanism comprises two reinforcing plates clamping the upper friction steel plate, the lower friction steel plate and the connecting steel plate, a stud that can pass through the two reinforcing plates, and nuts that can be threadedly connected to the upper and lower ends of the stud to prevent the reinforcing plates from bulging. Wherein, avoiding oblong holes for avoiding the stud are arranged on the upper friction steel plate, the connecting steel plate and the lower friction steel plate, and the extending direction of the avoiding oblong holes is the same as the extending direction of the oblong holes of the connecting steel plate.

7. The connecting mechanism according to claim 6, characterized in that, the extending length of the avoiding oblong holes is at least greater than the extending length of one of the oblong holes, the upper oblong holes and the lower oblong holes.

8. The connecting mechanism according to claim 3, characterized in that, it further comprises a crack stopping plate arranged between the upper surfaces of the corridor body and the building ring beam, wherein the crack stopping plate is formed with a downwardly concave groove.

9. The connecting mechanism according to claim 1, characterized in that, the material of the connecting steel plate is mild steel.

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