Connecting structure for installing elevator in existing building

Abstract

The application discloses a connecting structure of an elevator added to an existing building and relates to the technical field of added elevators. The both ends of the corridor plate are respectively provided with two connecting seats one and two connecting seats two; one connecting rod is rotatably installed on the two connecting seats one; the outer side of the connecting rod is rotatably provided with a plurality of connecting seats three fixed with the corridor plate; the outer side of the corridor plate is provided with two buffer structures respectively corresponding to the two connecting seats two; the buffer structure comprises a shell, a sliding rod and a rotating shaft; the shell is fixed with the corridor plate; the sliding rod is slidingly inserted into the shell; and one end of the sliding rod is fixed with the rotating shaft. When the added elevator is settled, the both ends of the corridor plate are hinged with the existing building and the added elevator shaft, and the corridor automatically presents a small gradient ramp after settlement, so that the body of the corridor plate will not be deformed and will not cause the connection between the corridor and the existing building to form a stepped settlement difference, thereby affecting the passage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of retrofitting elevators, in particular to a connecting structure of a retrofitting elevator of an existing building. BACKGROUND

[0002] Retrofitting elevators of existing buildings is an important part of old community renovation and urban renewal, and is an important measure to improve residents' travel conditions, improve living quality and cope with the trend of population aging. In recent years, the state and local governments have introduced a number of policies and measures to encourage the retrofitting of elevators in existing residential buildings.

[0003] After searching, the patent document with the authorization announcement number CN222771946U discloses a connecting device for a corridor beam end of a retrofitting elevator of an existing building. The existing building includes a resting platform and a ring beam located on the resting platform, and further includes a corridor beam, an upper steel gasket and a lower steel gasket. The lower steel gasket is attached to the bottom of the ring beam, and the upper steel gasket is arranged on the upper surface of the resting platform and is located above the lower steel gasket. The upper steel gasket and the lower steel gasket are connected by a plurality of bolts. One end of the corridor beam is hingedly connected to the retrofitting elevator, and the other end of the corridor beam is fixedly connected to the upper steel gasket. The ring beam is located on the resting platform, and in the case that the ring beam is far away from the outer wall surface, the connecting structure of the patent can avoid the need to demolish part of the resting platform and can also avoid damaging the original floor and platform, thereby ensuring the safety of the existing building and the connection strength of the retrofitting elevator corridor.

[0004] Based on the search and in combination with the prior art, it is found that the existing connecting structure of a retrofitting elevator of an existing building is simple in structure, convenient to construct, and has certain constraints when the elevator shaft has a small lateral displacement. However, it does not take into account that the retrofitting elevator of an existing building is a splicing of new and old buildings, and the settlement of the two is not synchronized, especially when there is deep foundation pit excavation, dewatering, subway construction, blasting and the like in the surrounding city construction, which will cause significant ground settlement. The settlement of the retrofitting elevator shaft will tear the corridor plate, causing plastic deformation of the corridor plate, and the deformation process of the corridor plate will cause damage to the existing building. SUMMARY

[0005] The present application aims to provide a connecting structure of a retrofitting elevator of an existing building to solve the problems raised in the background art.

[0006] The technical scheme of the present application is: a connecting structure for adding an elevator to an existing building, comprising a corridor plate, two connecting seats one and two connecting seats two are arranged at both ends of the corridor plate, one connecting rod is rotatably installed on the two connecting seats one, and a plurality of connecting seats three fixed to the corridor plate are rotatably installed on the outer side of the connecting rod, two buffer structures corresponding to the two connecting seats two are arranged on the outer side of the corridor plate, the buffer structure comprises a housing, a sliding rod and a rotating shaft, the housing is fixed to the corridor plate, the sliding rod is slidingly inserted into the housing, one end of the sliding rod is fixed to the rotating shaft, and one end of the rotating shaft is rotatably installed in the corresponding connecting seat two.

[0007] Preferably, the buffer structure further comprises a limiting rod, the middle position of the limiting rod is fixed to the sliding rod, and limiting grooves are formed in both sides of the housing, both ends of the sliding rod are located in the two limiting grooves respectively.

[0008] Preferably, the buffer structure further comprises two buffer springs and two adjusting nuts, two threads are formed in the outer side of the connecting rod, and the two threads are located on both sides of the limiting rod respectively, the two adjusting nuts are installed on the two threads through the internal threads respectively, the two buffer springs are sleeved on the sliding rod, one end of each of the two buffer springs is in contact with the two adjusting nuts respectively, and the other end of each of the two buffer springs is in contact with both ends of the housing respectively.

[0009] Preferably, the bottom of the corridor plate is provided with a damping structure, the damping structure comprises a support and a synchronous rod, the support is fixed to the corridor plate, circular holes are formed in both sides of the support, both ends of the synchronous rod are rotatably installed in the two circular holes respectively, a plurality of rotating cylinders are rotatably installed on the outer side of the synchronous rod, one end of each of the rotating cylinders is fixedly connected with an outer gear ring coaxial with it, a plurality of centrifugal structures are arranged on the outer side of the synchronous rod, and each of the plurality of centrifugal structures corresponds to one of the plurality of outer gear rings one by one, the synchronous rod drives the outer gear rings through the centrifugal structures, the bottom of the corridor plate is fixedly connected with a fixing frame, a plurality of damping rods are fixedly connected to the fixing frame, a connecting plate is fixedly connected to the damping end of each of the damping rods, a second toothed plate is fixedly connected to the outer side of the connecting plate, and each of the plurality of second toothed plates is engaged with one of the plurality of outer gear rings one by one, and a transmission structure is arranged between the synchronous rod and the sliding rod.

[0010] Preferably, both ends of the second toothed plate are provided with tooth blocks, a positioning block is fixedly connected to both ends of each of the tooth blocks, a first flat head rod is slidingly inserted into the outer side of the positioning block, a fixing block is fixedly connected to the non-flat head end of the first flat head rod, the fixing block is fixed to the second toothed plate, a spring is sleeved on the rod body of the first flat head rod, the spring is in a compressed state, and both ends of the spring are in contact with the positioning block and the fixing block respectively.

[0011] Preferably, the centrifugal structure includes a circular ring plate, which is coaxially fixed with the synchronization rod, and the entire circular ring plate is located inside the ring of the outer gear ring. A plurality of sliding grooves are provided on the outer side of the circular ring plate, and a centrifugal block is slidably inserted inside each of the sliding grooves. A plurality of slots adapted to the centrifugal blocks are provided inside the ring of the outer gear ring, and a countersunk hole is provided on the outer side of the centrifugal block, and a flat-headed rod 2 is slidably inserted inside the countersunk hole, one end of the flat-headed rod 2 is fixed in the sliding groove, and the rod body of the flat-headed rod 2 is sleeved with a spring 2, and the two ends of the spring 2 are respectively in contact with the flat head of the flat-headed rod 2 and the inner wall of the countersunk hole.

[0012] Preferably, the mass of the centrifugal blocks in each of the centrifugal structures is inconsistent.

[0013] Preferably, the transmission structure includes a connecting frame, a tooth plate 1 and a main gear, the main gear is coaxially fixed to the synchronization rod, the connecting frame is fixed to the sliding rod, the connecting frame is fixed to the tooth plate 1, and the tooth plate 1 is meshed with the main gear.

[0014] The present invention provides an improved connection structure for installing an elevator in an existing building. Compared with the prior art, it has the following improvements and advantages:

[0015] First, when the elevator is installed, the corridor automatically becomes a small slope because both ends of the corridor slab are hinged to the existing building and the elevator shaft. The main body of the corridor slab will not be deformed, and the corridor will not form a step-like settlement height difference at the connection between the corridor and the existing building, which would affect traffic.

[0016] Second, the present invention has two buffer structures at the hinged joint between the corridor and the elevator shaft. The device has built-in high-strength springs. When an earthquake or a strong typhoon occurs, the springs will expand and contract to play a buffering role. It is suitable for high-intensity earthquake protection areas or strong typhoon areas.

[0017] Third: The present invention sets up a damping structure with adaptive damping. Based on spring buffering, in order to achieve shock absorption, damping needs to be set to consume energy. The damping structure can convert the linear movement of the sliding rod in the buffering structure into the rotational movement of the synchronization rod. The centrifugal structure on the synchronization rod can adjust the number of working damping rods connected to the sliding rod according to the rotation speed of the synchronization rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 is a whole first perspective view of the structure of the present application;

[0020] Figure 2 is a whole second perspective view of the structure of the present application;

[0021] Figure 3 is a whole third perspective view of the structure of the present application;

[0022] Figure 4 is an enlarged view of A of Figure 3

[0023] Figure 5 is a partial view of the damping structure of the present application;

[0024] Figure 6 is a second perspective view of the tooth plate of the present application;

[0025] Figure 7 is an enlarged view of B of Figure 6

[0026] Figure 8 is a first perspective view of the centrifugal structure, the outer gear ring and the synchronizing rod of the present application;

[0027] Figure 9 is a first perspective view of the centrifugal structure, the outer gear ring and the synchronizing rod of the present application;

[0028] Figure 10 is a view of the internal structure of Figure 8

[0029] Reference signs:

[0030] 1, corridor plate; 2, connecting seat one; 3, connecting seat two; 4, connecting rod; 5, connecting seat three; 6, support; 7, sliding rod; 8, shell; 9, buffer spring; 10, adjusting nut; 11, limiting rod; 12, limiting groove; 13, connecting frame; 14, tooth plate one; 15, main gear; 16, fixed frame; 17, damping rod; 18, connecting plate; 19, tooth plate two; 20, outer gear ring; 21, centrifugal block; 22, tooth block; 23, flat head rod one; 24, spring one; 25, fixed block; 26, insertion slot; 27, flat head rod two; 28, spring two; 29, sliding groove; 30, rotating cylinder; 31, circular ring plate; 32, synchronizing rod. DETAILED DESCRIPTION

[0031] ​​​The present application will be described in detail below, and the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] The present application provides a connecting structure for installing an elevator in an existing building by improvement. The technical solutions of the present application are:

[0033] As shown in Figures 1 to 10 , the present application provides a connecting structure for installing an elevator in an existing building, which comprises a corridor plate 1, two connection seats one 2 and two connection seats two 3 are arranged at both ends of the corridor plate 1, one connecting rod 4 is rotatably installed at the two connection seats one 2, and a plurality of connection seats three 5 fixed to the corridor plate 1 are rotatably installed on the outer side of the connecting rod 4, two buffer structures corresponding to the two connection seats two 3 are arranged on the outer side of the corridor plate 1, the buffer structure comprises a shell 8, a sliding rod 7 and a rotating shaft, the shell 8 is fixed to the corridor plate 1, the sliding rod 7 is slidingly inserted into the shell 8, one end of the sliding rod 7 is fixed to the rotating shaft, and one end of the rotating shaft is rotatably installed in the corresponding connection seat two 3;

[0034] It is supplemented that the connection seat one 2 is fixed to the existing building by a fixing bolt, and the connection seat two 3 is fixed to the installed elevator by a fixing bolt.

[0035] From the above connection relationship, it can be seen that when the installed elevator settles, the installed elevator drives the connection seat two 3 to move downward, the connection seat one 2 and the connection seat two 3 are staggered with each other, a height difference is formed between the two, the connection seat two 3 pulls out a part of the sliding rod 7 from the shell 8, the connection seat two 3 and the sliding rod 7 rotate relative to each other, at this time, the corridor plate 1 and the connection seat one 2 rotate relative to each other, after settlement, the corridor automatically forms a small slope ramp, the body of the corridor plate 1 will not deform, and will not cause the connection between the corridor and the existing building to form a stepped settlement height difference to affect the passage.

[0036] Specifically, as shown in the accompanying Figure 3 and the accompanying Figure 4 , the buffer structure further comprises a limiting rod 11, the middle position of the limiting rod 11 is fixed to the sliding rod 7, limiting grooves 12 are formed on both sides of the shell 8, and both ends of the sliding rod 7 are located in the two limiting grooves 12 respectively.

[0037] From the above connection relationship, it can be seen that when the sliding rod 7 moves, the sliding rod 7 drives the limiting rod 11 to move, both ends of the limiting rod 11 slide in the corresponding limiting grooves 12 respectively, and the limiting rod 11 and the limiting grooves 12 are arranged to limit the movement range of the sliding rod 7.

[0038] Specifically, combined with the accompanying drawings Figure 4 As shown in the drawings, the buffer structure further comprises two buffer springs 9 and two adjusting nuts 10, the outer side of the connecting rod 4 is provided with two threaded portions, and the two threaded portions are located on the two sides of the limiting rod 11 respectively, the two adjusting nuts 10 are installed on the two threaded portions through internal threads respectively, the two buffer springs 9 are sleeved on the sliding rod 7, one end of each of the two buffer springs 9 is in contact with the two adjusting nuts 10 respectively, and the other end of each of the two buffer springs 9 is in contact with the two ends of the shell 8 respectively;

[0039] Through the above connection relationship, it can be known that the adjusting nut 10 is adjusted, the adjusting nut 10 moves along the sliding rod 7, so that the position of the adjusting nut 10 changes, and the adjusting nut 10 can change the compression degree of the buffer spring 9; when an earthquake or a large typhoon occurs, the installed elevator shakes, the buffer spring 9 deforms in extension and contraction, and plays a buffering role.

[0040] Specifically, combined with the accompanying drawings Figure 2 - the accompanying drawings Figure 4 As shown in the drawings, the bottom of the corridor plate 1 is provided with a damping structure, the damping structure comprises a support 6 and a synchronous rod 32, the support 6 is fixed with the corridor plate 1, the two sides of the support 6 are both provided with a circular hole, the two ends of the synchronous rod 32 are rotatably installed in the two circular holes respectively, a plurality of rotating cylinders 30 are rotatably installed on the outer side of the synchronous rod 32, one end of each of the rotating cylinders 30 is fixed with an external gear ring 20 coaxial with the rotating cylinder 30, a plurality of centrifugal structures are arranged on the outer side of the synchronous rod 32, the plurality of centrifugal structures correspond to the plurality of external gear rings 20 one by one respectively, the synchronous rod 32 drives the external gear ring 20 through the centrifugal structure, the bottom of the corridor plate 1 is fixed with a fixed frame 16, a plurality of damping rods 17 are fixed on the fixed frame 16, a connecting plate 18 is fixed to the damping end of each of the damping rods 17, a toothed plate two 19 is fixed to the outer side of the connecting plate 18, the plurality of toothed plates two 19 are engaged with the plurality of external gear rings 20 one by one respectively, and a transmission structure is arranged between the synchronous rod 32 and the sliding rod 7;

[0041] Through the above connection relationship, it can be known that the sliding rod 7 drives the synchronous rod 32 to rotate through the transmission structure, the synchronous rod 32 drives the external gear ring 20 to rotate through the centrifugal structure, the external gear ring 20 drives the corresponding toothed plate two 19 to rotate, the toothed plate two 19 drives the damping end of the damping rod 17 to move in extension and contraction through the connecting plate 18, so that the damping rod 17 converts the vibration potential energy into internal energy to dissipate energy and realize shock absorption.

[0042] Specifically, the two ends of each of the toothed plates two 19 are provided with a tooth block 22, the two ends of each of the tooth blocks 22 are fixed with a positioning block, a flat head rod one 23 is slidably inserted into the outer side of each of the positioning blocks, a fixed block 25 is fixed to the non-flat end of each of the flat head rods one 23, the fixed block 25 is fixed with the toothed plate two 19, a spring one 24 is sleeved on the rod body of each of the flat head rods one 23, the spring one 24 is in a compressed state, and the two ends of the spring one are in contact with the positioning block and the fixed block 25 respectively;

[0043] Through the above connection relationship, the outer gear ring 20 drives the corresponding toothed plate two 19, the toothed plate two 19 pulls the damping end of the damping rod 17 through the connecting plate 18, when the damping rod 17 is compressed or stretched close to the limit value, the outer gear ring 20 contacts the toothed block 22, the outer gear ring 20 continuously pushes the toothed block 22, the spring one 24 reciprocatingly stretches and contracts, the toothed plate two 19 no longer moves, thereby completing the protection of the damping rod 17, and the overpressure or overpulling of the damping rod 17 is avoided.

[0044] Specifically, combined with the accompanying drawings Figures 8-10 As shown in the drawings, the centrifugal structure includes a circular ring plate 31 coaxially fixed with a synchronous rod 32, the whole of the circular ring plate 31 is located in the ring of the outer gear ring 20, a plurality of sliding grooves 29 are formed on the outer side of the circular ring plate 31, a centrifugal block 21 is slidingly inserted into each sliding groove 29, a plurality of insertion grooves 26 adapted to the centrifugal block 21 are formed in the ring of the outer gear ring 20, a counterbore is formed on the outer side of the centrifugal block 21, a flat head rod two 27 is slidingly inserted into the counterbore, one end of the flat head rod two 27 is fixed in the sliding groove 29, the rod body of the flat head rod two 27 is sleeved with a spring two 28, and the two ends of the spring two 28 are in contact with the flat head of the flat head rod two 27 and the inner wall of the counterbore respectively.

[0045] Through the above connection relationship, when the synchronous rod 32 rotates, the circular ring plate 31 on the synchronous rod 32 rotates with the synchronous rod 32, the circular ring plate 31 drives the centrifugal block 21 to rotate around the central axis of the synchronous rod 32 by means of the insertion groove 26, the centrifugal block 21 generates centrifugal force, the centrifugal block 21 is thrown out along the insertion groove 26, and the centrifugal block 21 compresses the spring two 28. When the centrifugal block 21 is inserted into the sliding groove 29, the centrifugal block 21 drives the outer gear ring 20 to rotate.

[0046] Specifically, combined with the accompanying drawings Figure 8 As shown in the drawings, the masses of the centrifugal blocks 21 in each centrifugal structure are inconsistent.

[0047] Through the above connection relationship, since the masses of the centrifugal blocks 21 in each centrifugal structure are inconsistent, the lower the rotation speed of the synchronous rod 32, the more difficult it is for the centrifugal block 21 with a smaller mass to be thrown out, the fewer the outer gear rings 20 that can rotate, and the fewer the damping rods 17 that participate in work, thereby reducing energy consumption. Conversely, the faster the rotation speed of the synchronous rod 32, the faster the outer gear rings 20 that can rotate, and the more the damping rods 17 that participate in work, thereby increasing energy consumption. This design makes the damping strength of the entire damping structure self-adapting. Since the reciprocating linear speed of the sliding rod 7 in the shell 8 is positively correlated with the seismic frequency, and since the sliding rod 7 drives the synchronous rod 32 to rotate through the transmission structure, the rotation speed of the synchronous rod 32 is positively correlated with the seismic frequency. Under a lower seismic frequency, the damping strength cannot be too large, and under a higher seismic frequency, the damping strength cannot be too small. The self-adapting damping structure can automatically change according to the seismic frequency.

[0048] Specifically, combined with the accompanying drawings Figure 4 As shown, the transmission structure includes connecting frame 13, tooth plate one 14 and main gear 15, main gear 15 is coaxial fixed with synchronous rod 32, connecting frame 13 is fixed with slide rod 7, connecting frame 13 is fixed with tooth plate one 14, tooth plate one 14 is engaged with main gear 15;

[0049] Through the above connection relationship, when the slide rod 7 moves reciprocatingly in the shell 8, the slide rod 7 drives the tooth plate one 14 to move reciprocatingly through the connecting frame 13, the tooth plate one 14 drives the main gear 15, and the main gear 15 drives the synchronous rod 32 to rotate reciprocatingly.

[0050] Working principle:

[0051] The connecting seat one 2 is fixed on the existing building by fixing bolts, and the connecting seat two 3 is fixed on the installed elevator by fixing bolts;

[0052] When the installed elevator settles, the installed elevator drives the connecting seat two 3 to move downward, the connecting seat one 2 and the connecting seat two 3 are staggered, a height difference is formed between the two, the connecting seat two 3 pulls out a part of the slide rod 7 from the shell 8, the connecting seat two 3 rotates relative to the slide rod 7, at this time, the connecting corridor plate 1 rotates relative to the connecting seat one 2, the connecting corridor automatically forms a small slope ramp after settlement, the body of the connecting corridor plate 1 does not deform, and the connecting corridor and the existing building do not form a stepped settlement difference at the connection, thereby affecting the passage;

[0053] The adjusting nut 10 is driven to move along the slide rod 7, so that the position of the adjusting nut 10 changes, and the adjusting nut 10 can change the compression degree of the buffer spring 9; when an earthquake or a large typhoon occurs, the installed elevator shakes, the buffer spring 9 deforms to play a buffering role;

[0054] When the buffer structure works, the damping structure works, and the specific working process of the damping structure is that when the slide rod 7 moves reciprocatingly in the shell 8, the slide rod 7 drives the tooth plate one 14 to move reciprocatingly through the connecting frame 13, the tooth plate one 14 drives the main gear 15, and the main gear 15 drives the synchronous rod 32 to rotate reciprocatingly, when the synchronous rod 32 rotates, the circular plate 31 on the synchronous rod 32 rotates with the synchronous rod 32, the circular plate 31 drives the centrifugal block 21 to rotate around the center axis of the synchronous rod 32 through the insertion slot 26, the centrifugal block 21 generates centrifugal force, the centrifugal block 21 is thrown out along the insertion slot 26, and the centrifugal block 21 compresses the spring two 28, when the centrifugal block 21 is inserted into the sliding groove 29, the centrifugal block 21 drives the outer gear ring 20 to rotate, the outer gear ring 20 drives the corresponding tooth plate two 19, the tooth plate two 19 drives the damping end of the damping rod 17 to move through the connecting plate 18, so that the damping rod 17 converts the vibration potential energy into internal energy to dissipate energy and realize shock absorption.

[0055] The self-adaptive principle of the damping structure is that, due to the inconsistent mass of the centrifugal blocks 21 in each centrifugal structure, the lower the rotating speed of the synchronous rod 32, the more difficult the centrifugal blocks 21 with smaller mass are thrown out, the less the outer gear rings 20 capable of rotating, and the less the damping rods 17 participating in work, thereby reducing the energy consumption; on the contrary, the faster the rotating speed of the synchronous rod 32, the faster the outer gear rings 20 capable of rotating, and the more the damping rods 17 participating in work, thereby increasing the energy consumption, so that the damping strength of the whole damping structure has self-adaptability; since the reciprocating linear speed of the slide rod 7 in the shell 8 is positively correlated with the seismic frequency, and the slide rod 7 drives the synchronous rod 32 to rotate through the transmission structure, the rotating speed of the synchronous rod 32 is positively correlated with the seismic frequency, so that the damping strength cannot be too large at a lower seismic frequency, and the damping strength cannot be too small at a higher seismic frequency, and the self-adaptive damping structure can automatically change according to the seismic frequency.

[0056] The above description enables those skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connection structure for installing an elevator in an existing building, comprising a corridor plate (1), characterized in that: Two connecting seats 1 (2) and two connecting seats 2 (3) are respectively provided at both ends of the corridor plate (1), and the two connecting seats 1 (2) are rotatably mounted with a connecting rod (4) together, and a plurality of connecting seats 3 (5) fixed to the corridor plate (1) are rotatably mounted on the outer side of the connecting rod (4). Two buffer structures corresponding to the two connecting seats 2 (3) are respectively provided on the outer side of the corridor plate (1), and the buffer structure includes a shell (8), a sliding rod (7) and a rotating shaft. The shell (8) is fixed to the corridor plate (1), and the sliding rod (7) is slidably plugged into the shell (8). One end of the sliding rod (7) is fixed to the rotating shaft, and one end of the rotating shaft is rotatably mounted on the corresponding connecting seat 2 (3). The bottom of the corridor plate (1) is provided with a damping structure, and the damping structure includes a bracket (6) and a synchronization rod (32). The bracket (6) is fixed to the corridor plate (1). Circular holes are provided on both sides of the bracket (6). The two ends of the synchronization rod (32) are rotatably mounted in the two circular holes. A plurality of rotating cylinders (30) are rotatably mounted on the outer side of the synchronization rod (32). An outer gear ring (20) coaxial with the rotating cylinder (30) is fixed at one end. A plurality of centrifugal structures are provided on the outer side of the synchronization rod (32). The plurality of centrifugal structures are respectively The outer gear rings (20) are respectively in one-to-one correspondence with the synchronous rod (32), and the outer gear ring (20) is moved by the centrifugal structure. The bottom of the corridor plate (1) is fixed with a fixing frame (16), and the fixing frame (16) is fixed with a plurality of damping rods (17). The damping end of the damping rod (17) is fixed with a connecting plate (18), and the outer side of the connecting plate (18) is fixed with a tooth plate 2 (19). The plurality of tooth plates 2 (19) are respectively meshed with the plurality of outer gear rings (20) in one-to-one. A transmission structure is provided between the synchronous rod (32) and the slide rod (7).

2. The elevator connection structure for an existing building according to claim 1, characterized in that: The buffer structure further comprises a limiting rod (11), the middle position of the limiting rod (11) is fixed to the slide rod (7), limiting grooves (12) are provided on both sides of the housing (8), and the two ends of the slide rod (7) are respectively located in the two limiting grooves (12).

3. The elevator connection structure for an existing building according to claim 1, characterized in that: The buffer structure further comprises two buffer springs (9) and two adjusting nuts (10). Two sections of threads are provided on the outer side of the connecting rod (4), and the two sections of threads are respectively located on both sides of the limiting rod (11). The two adjusting nuts (10) are respectively mounted on the two sections of threads through internal threads. The two buffer springs (9) are both sleeved on the sliding rod (7). One end of the two buffer springs (9) is in contact with the two adjusting nuts (10), and the other end of the two buffer springs (9) is in contact with the two ends of the housing (8).

4. The elevator connection structure for an existing building according to claim 1, characterized in that: Both ends of the tooth plate 2 (19) are provided with tooth blocks (22), and both ends of the tooth block (22) are fixed with positioning blocks, and the outer side of the positioning block is slidably plugged with a flat-headed rod 1 (23), and the non-flat-headed end of the flat-headed rod 1 (23) is fixed with a fixing block (25), and the fixing block (25) is fixed to the tooth plate 2 (19). The rod body of the flat-headed rod 1 (23) is provided with a spring 1 (24), and the spring 1 (24) is in a compressed state, and the two ends of the spring 1 (24) are in contact with the positioning block and the fixing block (25) respectively.

5. The elevator connection structure for an existing building according to claim 1, characterized in that: The centrifugal structure includes a circular ring plate (31), which is coaxially fixed with a synchronous rod (32). The entire circular ring plate (31) is located inside the ring of the outer gear ring (20). A plurality of sliding grooves (29) are provided on the outer side of the circular ring plate (31). A centrifugal block (21) is slidably inserted into the interior of each sliding groove (29). A plurality of slots (26) adapted to the centrifugal block (21) are provided inside the ring of the outer gear ring (20). A countersunk hole is provided on the outer side of the centrifugal block (21). A flat-headed rod (27) is slidably inserted into the interior of the countersunk hole. One end of the flat-headed rod (27) is fixed in the sliding groove (29). The rod body of the flat-headed rod (27) is provided with a spring (28). The two ends of the spring (28) are respectively in contact with the flat head of the flat-headed rod (27) and the inner wall of the countersunk hole.

6. The elevator connection structure for an existing building according to claim 5, characterized in that: The quality of the centrifugal blocks (21) in each of the centrifugal structures is inconsistent.

7. The elevator connection structure for an existing building according to claim 1, characterized in that: The transmission structure includes a connecting frame (13), a tooth plate (14) and a main gear (15), wherein the main gear (15) is coaxially fixed to the synchronization rod (32), the connecting frame (13) is fixed to the slide rod (7), the connecting frame (13) is fixed to the tooth plate (14), and the tooth plate (14) is meshed with the main gear (15).

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