CN111997402A

CN111997402A - Connecting mechanism for connecting elevator shaft and house building

Info

Publication number: CN111997402A
Application number: CN202010790996.6A
Authority: CN
Inventors: 卢政; 王国卿; 李光耀
Original assignee: Hangzhou Xo Lift Co Ltd
Current assignee: Hangzhou Xo Lift Co Ltd
Priority date: 2020-05-25
Filing date: 2020-08-07
Publication date: 2020-11-27
Also published as: CN212689659U

Abstract

The invention discloses a connecting mechanism for connecting an elevator shaft with a building, and relates to the technical field of adding elevators in existing buildings; comprises a corridor main body and a connecting steel plate. One end of the corridor body is fixed on the elevator shaft, and the other end of the corridor body has a gap with a house ring beam of the house building. At least one end on the horizontal direction of connecting steel plate is equipped with the slot hole that a plurality of major axes extend towards vestibule body direction, and first bolt can pass the slot hole and be fixed in house girt or vestibule body with connecting steel plate's one end on. When the uneven settlement occurs, the connecting steel plates can deform so as to release stress to protect the elevator shaft and the house ring beam. When uneven settlement is large, relative friction can take place between connection steel sheet and the house girth, and the bolt slides in the slot hole, prevents that connection steel sheet from being broken by the tension.

Description

Connecting mechanism for connecting elevator shaft and house building

Technical Field

The 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 house building.

Background

At present, the requirements of people on the quality of life are higher and higher, and elevators need to be additionally arranged outside buildings for some old buildings.

The additional installation of the elevator generally includes an elevator shaft and a car running in the elevator shaft, and the elevator shaft is connected with a building gird of the building through a connecting mechanism. When the car reaches the target floor height, the car floor door is opened, and people walk into the building through the connecting mechanism.

Referring to fig. 1, generally, the connection mechanism is composed of a vestibule body a2, a corbel A3, and the like. One end of the corridor body A2 is fixed on an unshown elevator shaft, and the other end is fixedly connected with the bracket A3 through a bolt. The corbel A3 generally has a T-shaped structure, corresponding to the vertical portion of the T-shaped structure, serving as an overlapping vestibule body a 2; the transverse portion corresponding to the T-shaped structure is secured to the house girt a1 by structural chemical bolts a 4.

An additional elevator belongs to equipment additionally arranged on an original soil substrate. After the elevator installed outside the old building is put into use, the relatively soft soil foundation below the elevator sinks to a certain degree along with the time and under the action of gravity of the installed elevator. For the original building, the self sedimentation is basically stable for years, so that the sedimentation speeds of the elevator shaft and the building wall cannot be synchronous. Especially for the area with soft geology, the difference of the settlement heights of the building and the elevator well is larger, so that a connecting mechanism for connecting the additionally installed elevator well and the wall body is damaged, the wall body of the building is damaged, and meanwhile, hidden dangers are brought to the stable and safe operation of the additionally installed elevator.

Particularly, in the connection structure shown in fig. 1, after the building and the elevator shaft are settled differently, the elevator shaft is easy to apply tensile stress and bending moment to the house girt a1 through the structural chemical bolt a4, which will destroy the structure of the house girt.

Further, since the structural chemical bolts a4 exert tensile and bending stress on the house gird a1 for a long time, the cement of the house gird a1 is therefore likely to be pulverized and peeled off at the position corresponding to the structural chemical bolts a4 after a long time, and the vestibule body a2 is likely to be separated from the house gird a 1.

Considering that the additional elevator is usually exposed outside the building, in extreme cases such as earthquake, strong wind and the like, the additional elevator and the original building can be in danger of connection failure, which not only causes great economic loss, but also causes personal injury to elevator passengers, pedestrians and the like.

Therefore, there is a need in the field of add-on elevators for a connection mechanism that improves the connection of the elevator hoistway to the building structure.

Disclosure of Invention

One of the objects of the present invention is to provide a connecting mechanism for connecting an elevator shaft to a building construction, which does not damage a building gird structure of the building construction, is not easily damaged, and has good stability and is not easily lost.

In order to achieve the purpose, the invention adopts the following technical scheme:

the connecting mechanism comprises a corridor body and a connecting steel plate. One end of the corridor body is fixed to the elevator shaft, and a gap is reserved between the other end of the corridor body and the house ring beam of the house building. The connecting steel plate is horizontally arranged, one end of the connecting steel plate is connected with one end, close to the house building, of the corridor body, and the other end of the connecting steel plate is connected with the house ring beam. At least one end of the connecting steel plate is provided with a plurality of long holes, the long shafts of the long holes extend towards the corridor body, and the first bolts can penetrate through the long holes to fix one end of the connecting steel plate on the house ring beam or the corridor body.

According to the above, the connecting steel plate connects the house ring beam and the elevator shaft in a 'tiled' manner. When the elevator shaft and the housing construction are unevenly settled, the connecting steel plate is easy to bend and deform. Meanwhile, the connecting steel plate is provided with the long holes, when uneven settlement can occur in an elevator shaft and a building, the connecting steel plate can deform to release stress, and the first bolt penetrating through the long holes when the deformation is large can slide in the long holes to further release the stress. The deformation of the connecting steel plate and the sliding of the first bolt can ensure that the building (the building ring beam) can not be damaged and the connecting steel plate can not be broken or pulled off under the condition that the elevator shaft and the building are asymmetrically settled.

Preferably, the long holes of the connecting steel plate are provided only at one end near the house gird. This makes it easier to avoid pulling forces on the house ring beam when asymmetric settlement occurs.

Preferably, the plurality of long holes are uniformly arranged along the short axis direction, and the connecting steel plate is fixed on the lower surface of the house ring beam.

Preferably, the connecting steel plate is fixed on the lower surface of the corridor body.

Preferably, one end of the connecting steel plate is provided with a round hole, wherein a second bolt can penetrate through the round hole to fix the connecting steel plate on the corridor body.

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 long hole matched with the round hole and an upper round hole matched with the long hole, the lower friction steel plate is formed with a lower long hole matched with the round hole and a lower round hole matched with the long hole, the upper long hole, the lower long hole and the long hole extend in the same direction, and the upper friction steel plate and the lower friction steel plate can clamp the connecting steel plate.

Preferably, the upper friction steel plate is disposed between the connecting steel plate and the lower surface of the vestibule body, and the length of the upper long hole is smaller than that of the long hole, which is smaller than that of the lower long hole.

Preferably, a wrapping mechanism used for enabling the upper friction steel plate, the lower friction steel plate and the connecting steel plate to abut against each other is arranged between the corridor body and the house ring beam.

Preferably, the parcel mechanism is including cliping two reinforcing plates of last friction steel sheet, lower friction steel sheet, connection steel sheet, can pass the double-screw bolt of two reinforcing plates, can be threaded connection in order to prevent the nut of reinforcing plate uplift both ends about the double-screw bolt, wherein, all be equipped with on last friction steel sheet, connection steel sheet, the lower friction steel sheet and be used for dodging the slot hole of dodging of double-screw bolt, the extending direction of the slot hole of dodging is the same with the slot hole extending direction of connection steel sheet.

Preferably, the length of the escape slot is at least longer than the length of one of the slot, the upper slot and the lower slot.

Preferably, the anti-cracking device further comprises an anti-cracking plate, wherein the anti-cracking plate is erected between the corridor body and the upper surface of the ring beam, and a groove which is concave downwards is formed in the anti-cracking plate.

Preferably, the connection steel plate is made of mild steel.

The invention has the beneficial effects that: the invention provides a connecting mechanism for connecting an elevator shaft and a house building, which is not easy to damage. Possesses the antidetonation function. The connection steel plate forms a stress release plate, and when the foundation generates different settlement and the elevator or the house shakes, the connection mechanism can keep the connection stability and effectiveness. The connecting mechanism of the invention also brings a special benefit, namely under the condition that the space for additionally installing the elevator is very narrow, the corridor can be designed to be very short because the installation space in the horizontal direction is not needed, the weight of the corridor is mainly born by the upright posts of the hoistway, and the connecting steel plates can release stress while bearing no load. The elevator is significant to the field of elevator installation under the conditions that the space for installing the elevator is very limited and the corridor and the outer vertical face of the existing building can not be changed.

Drawings

Fig. 1 is a schematic structural diagram of a prior art connection mechanism.

Fig. 2 is a schematic structural view of a coupling mechanism according to a first preferred embodiment of the present invention.

Fig. 3 is a top view of fig. 2.

Fig. 4 is an enlarged view of a portion a in fig. 2.

Fig. 5 is a schematic structural view of a coupling mechanism according to a second preferred embodiment of the present invention.

Fig. 6 is an enlarged view of a portion B in fig. 5.

Fig. 7 is a partially enlarged view of the connection mechanism of the third embodiment.

FIG. 8 is a top view of the upper friction steel plate of the coupling mechanism shown in FIG. 7.

Fig. 9 is a schematic view of a connecting steel plate of the connecting mechanism shown in fig. 7.

FIG. 10 is a schematic view of a lower friction steel plate of the coupling mechanism shown in FIG. 7.

FIG. 11 is a schematic view of a reinforcement plate of the attachment mechanism of FIG. 7.

Fig. 12 is an operational schematic diagram of the coupling mechanism of fig. 7.

Description of reference numerals:

the corridor comprises a corridor 1, a house ring beam 2, a connecting steel plate 3, a long hole 4, a first bolt 5, a panel 6, a corridor body 7, a second bolt 8, a lower flange plate 9, an upper friction steel plate 10, a lower friction steel plate 11, an upper long hole 12, a lower long hole 13, a reinforcing plate 14, a stud 15, a nut 16, an escape long hole 17, an elevator hoistway 18, a building 19, a crack-stopping plate 20 and a groove 21.

Detailed Description

The inventive concept of the present invention will be described in detail below with reference to the accompanying drawings. What has been described herein is merely a preferred embodiment in accordance with the present invention and other ways of practicing the invention will occur to those skilled in the art and are within the scope of the invention. In the following detailed description, directional terms, such as "upper", "lower", "inner", "outer", "longitudinal", "lateral", and the like, are used with reference to the orientation depicted in the accompanying drawings. Components of embodiments of the present invention can be positioned in a number of different orientations and the directional terminology is used for purposes of illustration and is in no way limiting.

Referring to fig. 2-4, fig. 2 shows a coupling mechanism according to the invention and a hoistway and a building structure at both ends of the coupling mechanism; FIG. 3 shows a top view of FIG. 1; fig. 4 shows an enlarged view of the portion a of fig. 2.

As shown in fig. 2 to 4, the connecting mechanism includes a vestibule body 7, a connecting steel plate 3, and the like. One end of the corridor body 7 is fixed to the elevator shaft 18, and the other end has a gap with the house gird 2 of the house building 19. The vestibule body 7 may be an i-beam as shown in fig. 2-4 or a support structure capable of supporting pedestrians or other items. For the corridor body 7 in the form of the I-shaped steel, the upper flange plate 9' and the lower flange plate 9 of the I-shaped steel are respectively used as the upper surface and the lower surface of the corridor body 7. The upper surface of the corridor body 7 can be paved with panels 6 in the form of carpets, tiles, stainless steel plates and the like. The vestibule body 7 may be bolted or welded to the hoistway 18.

The connecting steel plate 3 of the connecting mechanism is horizontally arranged, one end of the connecting mechanism is connected with one end of the corridor body 7 close to the house building 19, and the other end of the connecting mechanism is connected with the house ring beam 2. One end of the connecting steel plate 3 in the horizontal direction is provided with a plurality of long holes 4 extending from the long axis of the connecting steel plate to the corridor body 7, and the first bolt 5 can penetrate through the long holes 4 to fix one end of the connecting steel plate 3 to the house girt 2. The other end of the connecting steel plate 3 is provided with a round hole for matching with the second bolt 8. The second bolt 8 can pass through the circular hole and fix one end of the connecting steel plate 3 on the lower flange plate 9 of the vestibule body 7.

It should be understood that although the connecting steel plate 3 herein is "horizontally arranged", it does not merely mean that the connecting steel plate 3 is arranged in an absolute horizontal manner. In the case where the car exits of the respective floors are not flush with the corresponding floor ring beam 2, the connecting steel plates 3 are arranged in a slightly inclined manner with respect to the horizontal plane, and the arrangement of the connecting steel plates 3 in this case is still "horizontal arrangement" as defined in the present invention.

The plurality of elongated holes 4 in the connecting steel plate 3 are uniformly arranged along the short axis direction thereof, for example, as shown in fig. 3, the elongated holes 4 are arranged at equal intervals along the short axis thereof or in any other regular manner for fixing the connecting steel plate 3 to the house ring beam 2. Of course, the number and orientation of the long holes can be arranged according to actual conditions, and the long holes can be arranged in a staggered mode along the long axis direction.

The connecting steel plate 3 is fixed to the lower surface of the house ring beam 2 or to the lower surface of a not shown plate piece projecting outwardly from the surface of the house ring beam 2 facing the vestibule body 7. Preferably, the first bolt 5 is located at one end of the elongated hole 4 close to the vestibule body 7 after the connecting steel plate 3 is installed on the corresponding house ring beam 2, which is particularly suitable for a situation where the sinking amount of the elevator shaft 18 is larger than that of the house building 19.

In the preferred embodiment of fig. 2 and 4, both ends of the connecting steel plate 3 are fixed to the lower surface of the vestibule body 7 and the lower surface of the vestibule body 7, respectively. In some cases, the connecting steel plate 3 may also be fixed to the upper surface of the vestibule body 7, the upper surface of the house ring beam. The corridor can be arranged in a staggered mode, namely one end of the corridor can be located on the upper surface of the corridor body, the other end of the corridor can be located on the lower surface of the house ring beam, and vice versa, so that the height difference between the corridor and the ring beam can be generated, the height difference which possibly exists originally can be made up, or steps can be formed under the condition that the height difference does not need to be made up.

In the embodiment of fig. 2 to 4, a setting layer of a type such as cement paste is actually laid on the upper surface of the corridor body 7, and tiles or the like are laid on the upper side of the corridor body 7 through the setting layer to form the panel 6. The face plate 6 and the corridor body 7 form the corridor 1.

There is a relatively small gap between the vestibule body 7 and the ring beam 2, optionally without a face plate 6 being laid between the upper surface of the vestibule body 7 and the upper surface of the ring beam. In other embodiments, optionally, a panel 6 (not shown) without a setting layer is laid between the upper surface of the vestibule body 7 and the upper surface of the ring beam. Therefore, the foreign matters can be prevented from falling into the upper surface of the connecting steel plate 3 through the gap between the corridor body 7 and the ring beam, so that the connecting steel plate 3 is rusted, or the foreign matters are accumulated.

In a second embodiment shown in fig. 5-6, the panel 6 completely connects the vestibule body 7 and the upper surface of the house ring 2. The part of the panel 6 between the corridor body 7 and the house gird 2 is supported by a crack arrest plate 20, which is bridged between the corridor body 7 and the upper surface of the house gird 2. The crack arrest plate 20 may alternatively be a steel plate.

Referring to fig. 6, the crack stopper plate 20 is formed with a groove 21 depressed downward. The recess 21 may alternatively be of arcuate configuration. Preferably, the groove 21 is formed in a triangular structure bent downward.

The upper surface of the groove 21 may be coated with a thin-walled film or the like for preventing a setting agent such as cement paste from falling into the groove 21 before the panel 6 is laid. The grooves 21 allow a relatively small bending to occur between the crack arrest plate 20 above the body of the corridor and the crack arrest plate 20 between the upper surfaces of the house girds 2 in the event of unequal settlement of the elevator shaft 18 and the building construction 19, and also allow the crack arrest plate 20 to be stretched by a small amount. In case of a small bending or stretching of the crack stopper 20, the groove 21 provided allows the upper surface of the crack stopper 20 not to protrude upwards, so that the panel 6 is not lifted upwards by the crack stopper 20 in this process. Accordingly, even when the elevator shaft 18 and the building structure 19 are unevenly settled after the crack stoppers 20 are laid, the panel 6 is not warped upward.

In another laying method, before the face plate 6 is laid, the inner wall surface of the groove 21 may be coated with a material such as an oil film that makes it difficult for the coagulant to be tightly bonded to the inner wall surface of the groove 21. This also ensures that the crack stop plate 20 is free to be stretched and bent in the event of unequal settlement of the elevator shaft 18 and the building construction 19.

For the connecting steel plate 3 of the present invention, it is preferably made of soft steel that is easily deformed.

The operation of the coupling mechanism of this embodiment will be described below with reference to fig. 3 to 6. When housing construction 19 and elevator well 18 produce the asymmetric settlement, can take place the dislocation between house gird 2 and the vestibule, corresponding deformation can take place for connection steel plate 3 this moment, and connection steel plate 3 release stress prevents that the vestibule from taking place to destroy. When the degree of asymmetry of the settlement is large, a large tensile force exists on the connecting steel plate 3, and the frictional force between the connecting steel plate 3 and the house ring beam 2 is not sufficient to resist the tensile force. At this moment, relative motion takes place between connection steel sheet 3 and the house gird 2, and the bolt slides in slot 4 to further release the stress, prevent that house gird 2 or vestibule from being pulled bad.

In the invention, the connecting steel plate 3 deforms in the uneven settlement, so that the stress of the corridor and the house ring beam 2 is reduced, the corridor and the house ring beam 2 are protected, in addition, the connection effectiveness of the connecting steel plate 3 is further improved by the design of the long hole 4, and the connecting steel plate 3 cannot be broken when the settlement is large.

A third embodiment according to the present invention is described below with reference to fig. 7 to 12. Wherein the same parts as in the embodiments corresponding to fig. 1-6 and their equivalents will not be described again, and the contents of such parts can be referred to the above description.

Referring to fig. 7, in this embodiment, the connection mechanism further includes an upper friction steel plate 10 and a lower friction steel plate 11 respectively located above and below the connection steel plate 3.

Referring to fig. 8, an upper friction steel plate 10 is shown, which is formed with an upper long hole 12 matching the circular hole of the connecting steel plate 3 and an upper circular hole matching the long hole 4 of the connecting steel plate 3.

Referring to fig. 10, a lower friction steel plate 11 is shown, which is formed with a lower elongated hole 13 matching the circular hole of the attachment steel plate 3 and a lower circular hole matching the elongated hole 4 of the attachment steel plate 3.

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 all the same as the extending direction of the long hole 4 of the connecting steel plate 3. Below the corridor body 7, the connecting steel plate 3 is clamped by an upper friction steel plate 10 and a lower friction steel plate 11.

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

When the upper friction steel plate 10, the connecting steel plate 3, and the lower friction steel plate 11 are mounted, the second bolt 8 is preferably positioned at a position substantially midway in the longitudinal direction of the upper long hole 12 and the lower long hole 13.

Referring to fig. 12 in conjunction with fig. 7, when asymmetric settlement occurs between the building construction 19 and the elevator shaft 18, specifically, when the elevator shaft 18 sinks relative to the building construction 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 to the right through the upper round hole and the lower round hole matched with the first bolt. After the upper friction steel plate 10 and the lower friction steel plate 11 are moved rightwards to enable the left end of the upper long hole 12 (or the lower long hole 13) to abut against the second bolt 8, the second bolt 8 moves leftwards through the upper long hole 12 and the lower long hole 13 matched with the second bolt, 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, relative friction is generated between the left end of the upper friction steel plate 10 and the corridor, and uneven settlement is blocked according to friction force at the moment.

Since the length of the upper long hole 12 is the shortest, as the degree of uneven settlement becomes greater, the end of the upper long hole 12 abuts on the second bolt 8 first, see fig. 12, and at this time, the upper friction steel plate 10 and the vestibule do not rub against each other, and the second bolt 8 directly pulls the upper friction steel plate 10, so that the effect of resisting uneven settlement becomes better.

Along with the degree of uneven settlement continues the grow, go up friction steel plate 10 and be elongated, the connector plate 3 right-hand member continues to be pulled to the left, and the lower friction steel plate 11 left end continues to be pulled to the right, and when first bolt 5 leaned on in the tip of slot hole 4, first bolt 5 drew connector plate 3, and the effect of resisting uneven settlement further increases. Similarly, when the degree of uneven settlement continues to increase, the end of the lower long hole 13 abuts on the second bolt 8, and the second bolt 8 pulls the lower friction steel plate 11.

Referring to fig. 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 arranged between the corridor body 7 and the house girt 2.

Referring to fig. 7 and 11, the wrapping mechanism includes two reinforcing plates 14 shown in fig. 11, a stud 15 capable of penetrating through the two reinforcing plates 14, and a nut 16 capable of being screwed on the upper and lower ends of the stud 15 to prevent the reinforcing plates 14 from rising. The two reinforcing plates 14 are respectively positioned above the upper friction steel plate 10 and below the lower friction steel plate 11. When the stud 15 and the nut 16 tighten 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.

When the upper friction steel plate 10, the connecting steel plate 3, and the lower friction steel plate 11 are subjected to the axial pressing force, the three steel plates may be bent outward, thereby causing the three steel plates to separate from each other. It will be appreciated that the wrapping mechanism of the above form prevents the three steel plates from being released from each other. Because the wrapping mechanism can prevent the steel plates from being separated, the situation that the anti-seismic performance of the connecting mechanism is reduced due to the fact that the friction force of the steel plates between every two steel plates is reduced can be avoided.

Referring to fig. 11, in some embodiments, the through-holes in the stiffener plate 14 are disposed at intermediate locations thereof. In order to ensure that the bolt can penetrate through the upper reinforcing plate 14 and the lower reinforcing plate 14, referring to fig. 8-10, the upper friction steel plate 10, the connecting steel plate 3 and the lower friction steel plate 11 are all provided with avoiding long holes 17 for avoiding the studs 15. The extending direction of the escape long hole 17 is the same as the extending direction of the long hole 4 of the connecting steel plate 3.

In other embodiments, the through holes in the reinforcing plate 14 are provided on both sides in the width direction thereof. In this case, the upper friction steel plate 10, the connecting steel plate 3, and the lower friction steel plate 11 do not need to be provided with the escape slot 17.

In some embodiments, the length of the escape slot 17 is greater than the length of any of the slot 4, the upper slot 12, and the lower slot 13.

In an earthquake-prone area, when an earthquake occurs, the elevator shaft 18 and the building 19 can make back-and-forth movement, which causes back-and-forth friction between the upper friction steel plate 10 and the connecting steel plate 3 and back-and-forth friction between the lower friction steel plate 11 and the connecting steel plate 3. In the process, the stud 15 moves in the escape slot 17. The friction between the upper friction steel plate 10, the lower friction steel plate 11 and the connecting steel plate 3 consumes a large amount of earthquake energy. This form of connection mechanism thus prevents the difference in sinkage between the elevator shaft 18 and the house from being further increased to some extent, reducing the destructive force of an earthquake on the house and the elevator shaft 18.

The embodiment in which the one end of the connecting steel plate 3 provided with the elongated hole 4 is connected to the house ring beam 2 has been described above. It will be appreciated that in some embodiments the end of the connecting steel plate 3 provided with the elongated hole 4 may alternatively be arranged in connection with the vestibule body 7. In other embodiments, the two ends of the connecting steel plate 3 are provided with long holes 4 to connect with the corresponding corridor body 7 and the house ring beam 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A connection mechanism for connecting an elevator hoistway with a building structure, the connection mechanism comprising:

one end of the corridor body is fixed on the elevator shaft, and a gap is reserved between the other end of the corridor body and a house ring beam of the house building; and

the connector plate, the connector plate level is arranged, its one end with the vestibule body is close to the one end of housing construction and is connected, and the other end is connected with house girth, wherein, connector plate's at least one end is equipped with a plurality of slot holes, the major axis of slot hole extends towards vestibule body direction, and first bolt can pass the slot hole and will connector plate is fixed in on house girth or the vestibule body.

2. The attachment mechanism according to claim 1, wherein the attachment steel plate is provided with the elongated hole only at one end, and a first bolt can pass through the elongated hole to fix the attachment steel plate to the house girt.

3. The connecting mechanism according to claim 1 or 2, wherein the plurality of long holes are uniformly arranged along a short axis direction, and the connecting steel plate is fixed to a lower surface of the house girder.

4. The attachment mechanism of claim 3 wherein the attachment steel plate is secured to a lower surface of the vestibule body.

5. The connecting mechanism according to claim 2, wherein the other end of the connecting steel plate is provided with a round hole, wherein a second bolt can pass through the round hole to fix the connecting steel plate on the corridor body.

6. The connecting mechanism according to claim 5, further comprising an upper friction steel plate formed with an upper elongated hole matching the circular hole and an upper circular hole matching the elongated hole, and a lower friction steel plate formed with a lower elongated hole matching the circular hole and a lower circular hole matching the elongated hole, wherein the upper elongated hole, the lower elongated hole and the elongated hole extend in the same direction, and the upper friction steel plate and the lower friction steel plate can clamp the connecting steel plate.

7. The attachment mechanism of claim 6 wherein the upper friction steel plate is disposed between the attachment steel plate and the lower surface of the vestibule body, and wherein the length of the upper slot is less than the length of the slot, which is less than the length of the lower slot.

8. The connecting mechanism according to claim 7, wherein a wrapping mechanism for abutting 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 house gird.

9. The connecting mechanism according to claim 8, wherein the wrapping mechanism comprises two reinforcing plates for clamping the upper friction steel plate, the lower friction steel plate and the connecting steel plate, a stud capable of penetrating through the two reinforcing plates, and a nut capable of being screwed at the upper end and the lower end of the stud to prevent the reinforcing plates from bulging, wherein each of the upper friction steel plate, the connecting steel plate and the lower friction steel plate is provided with a hiding slot hole for avoiding the stud, and the extending direction of the hiding slot hole is the same as that of the slot hole of the connecting steel plate.

10. The attachment mechanism of claim 9 wherein said escape slot has an extension length at least greater than an extension length of one of said slot, upper slot and lower slot.

11. The coupling mechanism of claim 4, further comprising a crack arrest plate positioned between the vestibule body and the upper surface of the house gird, wherein the crack arrest plate is formed with a downwardly concave groove.

12. The connecting mechanism of claim 1, wherein the connecting steel plate is made of mild steel.