Building isolation support connecting joint and construction method thereof

Abstract

The application discloses a building isolation support connecting joint and a construction method thereof, and particularly relates to the technical field of building isolation supports, and comprises an isolation support.The application can quickly realize accurate positioning between the fixing seat and the connecting plate by arranging the positioning column and the positioning hole, and further strengthens the connecting strength between the fixing seat and the connecting plate, and meanwhile, the fixing seat and the connecting plate can be limited together by arranging the inserting column, the inserting slot and the limiting assembly, so that the limiting and reinforcing effect is achieved, and then the dislocation and separation of the fixing seat and the connecting plate can be effectively prevented, and the U-shaped clamping plates can be simultaneously clamped between the fixing seat and the connecting plate by arranging the U-shaped clamping plates and the driving assembly on the fixing seat, so that the fixing seat and the connecting plate can be further limited and reinforced, and then the tight fixing between the isolation support and the concrete prefabricated column can be effectively realized, and the active displacement of the isolation support is prevented, and the stability of the connecting joint is greatly ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building isolation support, in particular to a building isolation support connecting joint and a construction method thereof. BACKGROUND

[0002] Traditional anti-seismic technology is to firmly connect the upper structure and the foundation of a building together, that is, to make the house more solid, use thicker steel bars and more concrete pouring, but the anti-seismic effect is not ideal, and the isolation support is to increase an isolation layer between the upper structure and the foundation, install a rubber isolation support, and achieve soft connection with the ground, so that about 80% of the energy of the earthquake can be offset through the technology.

[0003] At present, in the application process of the building isolation support, the prefabricated concrete frame column is often connected with the isolation support, which not only facilitates assembly construction and greatly improves the construction efficiency, and the connecting plate of the isolation support and the prefabricated concrete frame column are usually fixedly connected through bolts and nuts, the fixed connection mode is relatively single, is prone to loosening under the action of external forces such as vibration, and the single mode also cannot effectively ensure the stable connection between the parts, and is prone to active displacement, so that the connecting joint is unstable, and the safety of the building structure is greatly affected. SUMMARY

[0004] The application aims to provide a building isolation support connecting joint and a construction method thereof, the accurate positioning between the fixed seat and the connecting plate can be quickly realized by arranging the positioning column and the positioning hole between the fixed seat and the connecting plate, the connection strength between the fixed seat and the connecting plate is further strengthened, the fixed seat and the connecting plate can be limited together through the arrangement of the inserting column, the inserting slot and the limiting assembly, so as to play the role of limiting and reinforcing, and the dislocation and separation of the fixed seat and the connecting plate can be effectively prevented, the stability of the fixed connection between the isolation support and the concrete prefabricated column is greatly improved, the U-shaped clamping plate and the driving assembly and other structures are arranged on the fixed seat, the plurality of U-shaped clamping plates can be simultaneously clamped between the fixed seat and the connecting plate, so that the fixed seat and the connecting plate can be further limited and reinforced, the tight fixing between the isolation support and the concrete prefabricated column can be effectively realized, the active displacement of the isolation support is prevented, and the stability of the connecting joint is greatly ensured, so as to solve the above problems in the art.

[0005] In order to achieve the above-mentioned purpose, the application provides the following technical scheme: a building isolation support connecting joint and a construction method thereof, comprising:

[0006] The isolation support is symmetrically fixed with connecting plates at both ends.

[0007] Two concrete prefabricated columns, the end of two concrete prefabricated columns is fixed with the fixed seat towards the isolation support, and the fixed seat is provided with a fixed assembly between the end of the connecting plate,

[0008] The cavity is provided in the fixed seat, and the inside of the cavity is symmetrically provided with a movable fixed plate at both ends, a plurality of connecting columns are connected through the two sides of the fixed seat, one end of the connecting column extends into the cavity and is fixedly connected with the fixed plate, and the other end of the connecting column is located outside the fixed seat and is provided with a U-shaped clamping plate, the U-shaped clamping plate can be clamped between the fixed seat and the connecting plate, and the fixed seat is provided with a driving assembly, and the driving assembly is used to drive the two fixed plates to move.

[0009] The connecting plate is provided with a plurality of insertion slots matched with the insertion columns at four ends, and one end of the insertion column can be inserted into the insertion slot and connected with a limiting assembly.

[0010] Preferably, the fixed assembly comprises first through holes provided at four ends of the connecting plate, second through holes identical to the first through holes are provided at four ends of the fixed seat, and connecting steel bars are connected through the first through holes and the second through holes, and both ends of the connecting steel bars are threadedly connected with nuts.

[0011] Preferably, the driving assembly comprises a bidirectional screw rod rotatably connected to the middle of the inside of the cavity through a bearing, two movable blocks are symmetrically threadedly connected to both ends of the bidirectional screw rod, one end of the bidirectional screw rod extends out of the fixed seat and is fixed with a fixed handle, both ends of the movable block are rotatably connected with fixed arms, and one end of the fixed arm relative to the movable block is rotatably connected with the end of the fixed plate.

[0012] Preferably, the outer wall of the connecting column is sleeved with a first spring, one end of the first spring is fixedly connected with the fixed plate, and the other end of the first spring is fixedly connected with the inner wall of the cavity.

[0013] Preferably, the inner sides of both ends of the U-shaped clamping plate are fixedly provided with rubber blocks, and the end of the rubber block is provided with a circular arc chamfer.

[0014] Preferably, one end of the U-shaped clamping plate close to the connecting plate is connected through a fastening bolt, a plurality of screw holes towards the U-shaped clamping plate are provided in the inner side of the connecting plate, and one end of the fastening bolt passes through the rubber block and is screwed into the screw hole.

[0015] Preferably, a plurality of positioning columns are fixed in an annular array on one side of the fixed seat relative to the concrete prefabricated column, and a plurality of positioning holes towards the positioning columns are provided in the outer side of the connecting plate.

[0016] Preferably, the limiting assembly comprises a cavity groove opened at the end of the inserting column, a second spring is arranged in the cavity groove, both ends of the second spring are fixed with sliding blocks, one end of the sliding block is connected with a limiting column relative to the second spring, the inner side of the connecting plate and the two sides of the inserting groove are symmetrically fixed with baffle plates, a limiting slot is opened in the side wall of the baffle plate, and one end of the limiting column penetrates out of the inserting column and is inserted into the limiting slot.

[0017] A construction method of a building isolation bearing connecting joint, comprising the following steps:

[0018] S1, by placing the isolation bearing between the two concrete precast columns, and aligning the fixed seat on the concrete precast column with the connecting plate on the isolation bearing, at this time the plurality of positioning columns on the fixed seat can be inserted one by one into each positioning hole on the connecting plate, so that the precise positioning between the fixed seat and the connecting plate can be quickly realized, and the connection strength between the fixed seat and the connecting plate is further strengthened;

[0019] S2, while the fixed seat and the connecting plate are butted, the four inserting columns on the fixed seat can also be inserted into the four inserting slots on the connecting plate, and by pressing the limiting columns on both sides of the end of the inserting column, the limiting columns drive the sliding blocks to move and extrude the second spring, then the limiting columns enter the cavity groove, then the end of the limiting column penetrates through the inserting slot and is clamped between the two baffle plates, and then the second spring drives the limiting column to reset, so that the limiting column is inserted into the limiting slot, thereby the fixed seat and the connecting plate can be limited together to play a limiting and reinforcing role, thereby effectively preventing the fixed seat and the connecting plate from being dislocated and separated, and greatly improving the stability when the isolation bearing and the concrete precast column are fixedly connected;

[0020] S3, by inserting the connecting steel bars between the first through hole and the second through hole, and screwing the nuts on both ends of the connecting steel bars, the two nuts are respectively abutted against the side walls of the fixed seat and the connecting plate, so as to realize the fixation of the fixed seat and the connecting plate, thereby ensuring the fixed connection between the isolation bearing and the concrete precast column;

[0021] S4, after the fixed seat and the connecting plate are fixedly connected, the fixed handle can be twisted, so that the fixed handle drives the bidirectional screw rod to rotate, then the bidirectional screw rod drives the two movable blocks to move towards each other, then the movable blocks drive the fixed arms to rotate, so that the fixed arms drive the fixed plates to move, then the two fixed plates move close to each other, so that the fixed plates drive the U-shaped clamping plate to move close to the fixed seat, then the U-shaped clamping plate can be clamped between the fixed seat and the connecting plate, and at the same time, the rubber blocks at both ends of the U-shaped clamping plate can be extruded against the side walls of the fixed seat and the connecting plate, thereby further limiting and reinforcing the fixed seat and the connecting plate;

[0022] S5, by inserting the fastening bolt at the end of the U-shaped clamping plate, and rotating the fastening bolt to make the end thereof screwed into the threaded hole on the connecting plate, the loosening of the U-shaped clamping plate can be further prevented, and in the structure and the staggered cooperation of the two groups of symmetrical U-shaped clamping plates and the two groups of symmetrical inserting columns, the tight fixing between the seismic isolation support and the concrete prefabricated column can be effectively realized, the active displacement of the seismic isolation support is prevented, and the stability of the connecting joint is greatly ensured.

[0023] In the above technical solution, the technical effects and advantages provided by the present application are as follows:

[0024] By arranging the positioning column and the positioning hole between the fixing seat and the connecting plate, the accurate positioning between the fixing seat and the connecting plate can be quickly realized, and the connecting strength between the fixing seat and the connecting plate is further enhanced, and meanwhile, by arranging the inserting column, the inserting slot and the limiting assembly, the fixing seat and the connecting plate can be limited together to play a limiting and reinforcing role, so that the dislocation and separation of the fixing seat and the connecting plate can be effectively prevented, and the stability of the fixing connection between the seismic isolation support and the concrete prefabricated column is greatly improved.

[0025] By arranging the U-shaped clamping plate and the driving assembly on the fixing seat, a plurality of U-shaped clamping plates can be simultaneously clamped between the fixing seat and the connecting plate, so that the fixing seat and the connecting plate can be further limited and reinforced, and by arranging the fastening bolt and the threaded hole, the loosening of the U-shaped clamping plate can be further prevented, and in the structure and the staggered cooperation of the two groups of symmetrical U-shaped clamping plates and the two groups of symmetrical inserting columns, the tight fixing between the seismic isolation support and the concrete prefabricated column can be effectively realized, the active displacement of the seismic isolation support is prevented, and the stability of the connecting joint is greatly ensured. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0028] Figure 2 It is a schematic diagram of the connecting structure of the seismic isolation support and the connecting plate of the present application.

[0029] Figure 3 It is a longitudinal sectional view of the seismic isolation support and the connecting plate of the present application.

[0030] Figure 4 It is a schematic diagram of the connecting structure of the concrete prefabricated column and the fixing seat of the present application.

[0031] Figure 5Figure 2 is a schematic view of the connection structure of the concrete precast column and the fixing seat of the application;

[0032] Figure 6 Figure 3 is a schematic view of the internal structure of the fixing seat of the application;

[0033] Figure 7 Figure 4 is a schematic view of the connection structure of the movable block and the U-shaped clamping plate of the application;

[0034] Figure 8 Figure 5 is a schematic view of the three-dimensional structure of the insertion column of the application;

[0035] Figure 9 Figure 6 is a longitudinal sectional view of the insertion column of the application;

[0036] Figure 10 Figure 7 is a schematic view of the separation structure of the U-shaped clamping plate and the fastening bolt of the application.

[0037] Explanation of reference signs:

[0038] 1, seismic isolation support; 2, connecting plate; 3, concrete precast column; 4, fixing seat; 5, first through hole; 6, second through hole; 7, connecting steel bar; 8, nut; 9, positioning hole; 10, positioning column; 11, cavity; 12, fixing plate; 13, connecting column; 14, U-shaped clamping plate; 15, rubber block; 16, first spring; 17, bidirectional screw rod; 18, movable block; 19, fixing arm; 20, fixing handle; 21, insertion column; 22, insertion slot; 23, baffle; 24, limiting groove; 25, cavity groove; 26, second spring; 27, sliding block; 28, limiting column; 29, fastening bolt; 30, screw hole. DETAILED DESCRIPTION

[0039] In order for those skilled in the art to better understand the technical solutions of the application, the application will be further described in detail below with reference to the drawings.

[0040] The application provides a building seismic isolation support connecting joint, as shown in Figures 1-10 The building seismic isolation support connecting joint comprises:

[0041] A seismic isolation support 1 is provided with symmetrical connecting plates 2 at both ends of the seismic isolation support 1.

[0042] Two concrete precast columns 3 are provided with fixing seats 4 facing the seismic isolation support 1 at the end portions of the two concrete precast columns 3, and a fixing assembly is arranged between the fixing seat 4 and the end portion of the connecting plate 2; the concrete precast column can be made by pouring concrete into a hollow groove from a concrete frame column, so as to facilitate rapid assembly construction.

[0043] The fixed assembly comprises first through holes 5 formed at four ends of the connecting plate 2, second through holes 6 formed at four ends of the fixed seat 4 and identical with the first through holes 5, and connecting steel bars 7 penetrating through the first through holes 5 and the second through holes 6.

[0044] The two nuts 8 are respectively abutted against the side walls of the fixed seat 4 and the connecting plate 2 by penetrating the connecting steel bars 7 between the first through holes 5 and the second through holes 6 and screwing the nuts 8 at both ends of the connecting steel bars 7, so as to fix the fixed seat 4 and the connecting plate 2 and further ensure the fixed connection between the seismic support 1 and the concrete prefabricated column 3.

[0045] A plurality of positioning columns 10 are fixed in a ring array on one side of the fixed seat 4 relative to the concrete prefabricated column 3, and a plurality of positioning holes 9 are formed on the outer side of the connecting plate 2 and face the positioning columns 10.

[0046] The seismic support 1 is placed between the two concrete prefabricated columns 3, and the fixed seat 4 on the concrete prefabricated column 3 is aligned with the connecting plate 2 on the seismic support 1, so that the plurality of positioning columns 10 on the fixed seat 4 are inserted into the respective positioning holes 9 on the connecting plate 2 one by one, thereby quickly achieving accurate positioning between the fixed seat 4 and the connecting plate 2 and further enhancing the connection strength between the fixed seat 4 and the connecting plate 2.

[0047] A cavity 11 is formed in the fixed seat 4, and movable fixed plates 12 are symmetrically arranged at both ends inside the cavity 11, a plurality of connecting columns 13 are connected through the fixed seat 4, one end of each connecting column 13 extends into the cavity 11 and is fixedly connected with the fixed plate 12, and the other end of each connecting column 13 is located outside the fixed seat 4 and is provided with a U-shaped clamping plate 14, the U-shaped clamping plate 14 can be clamped between the fixed seat 4 and the connecting plate 2, and the fixed seat 4 is provided with a driving assembly for driving the two fixed plates 12 to move;

[0048] The driving assembly comprises a bidirectional screw rod 17 rotatably connected to the middle of the inside of the cavity 11 through a bearing, movable blocks 18 are symmetrically screw-connected at both ends of the bidirectional screw rod 17, one end of the bidirectional screw rod 17 extends out of the fixed seat 4 and is fixedly connected with a fixed handle 20, and fixed arms 19 are rotatably connected at both ends of the movable blocks 18 and at one end of the movable blocks 18 relative to the fixed plates 12.

[0049] A first spring 16 is sleeved on the outer wall of the connecting column 13, one end of the first spring 16 is fixedly connected with the fixed plate 12, and the other end of the first spring 16 is fixedly connected with the inner wall of the cavity 11.

[0050] By setting the first spring 16, when the two fixed plates 12 move away from each other, the fixed plate 12 can extrude the first spring 16, so that the first spring 16 is elastically deformed, and under the elastic action of the first spring 16, the fixed plate 12 can be supported and limited to prevent the fixed plate 12 from moving freely and causing the U-shaped clamping plate 14 to move, thereby greatly ensuring the stability of the structure.

[0051] The inner two ends of the U-shaped clamping plate 14 are fixed with rubber blocks 15, and the end of the rubber block 15 is provided with a circular arc chamfer. The circular arc chamfer is beneficial to the extrusion movement of the rubber block 15.

[0052] When the fixed seat 4 is fixedly connected with the connecting plate 2, the fixed handle 20 can be twisted to drive the bidirectional screw rod 17 to rotate, and then the bidirectional screw rod 17 drives the two movable blocks 18 to move towards each other, and then the movable block 18 drives the fixed arm 19 to rotate, so that the fixed arm 19 drives the fixed plate 12 to move, and then the two fixed plates 12 move close to each other, so that the fixed plate 12 drives the U-shaped clamping plate 14 to move close to the fixed seat 4, and then the U-shaped clamping plate 14 can be clamped between the fixed seat 4 and the connecting plate 2, and the two ends of the U-shaped clamping plate 14 can be extruded on the side wall of the fixed seat 4 and the connecting plate 2 respectively, so that the fixed seat 4 and the connecting plate 2 can be further limited and reinforced.

[0053] One end of the U-shaped clamping plate 14 close to the connecting plate 2 is connected with a fastening bolt 29, and the inner side of the connecting plate 2 is provided with a plurality of screw holes 30 facing the U-shaped clamping plate 14, and one end of the fastening bolt 29 passes through the rubber block 15 and is screwed into the screw hole 30.

[0054] By inserting the fastening bolt 29 at the end of the U-shaped clamping plate 14, and rotating the fastening bolt 29 to make the end thereof screwed into the screw hole 30 on the connecting plate 2, the loosening of the U-shaped clamping plate 14 can be further prevented.

[0055] The four sides of the fixed seat 4 are fixed with the insertion columns 21, and the four ends of the connecting plate 2 are provided with the insertion slots 22 matched with the insertion columns 21, one end of the insertion column 21 can be inserted into the insertion slot 22 and connected with the limiting assembly.

[0056] The limiting assembly comprises a cavity groove 25 provided at the end of the insertion column 21, a second spring 26 is arranged in the cavity groove 25, both ends of the second spring 26 are fixed with sliding blocks 27, one end of the sliding block 27 is connected with a limiting column 28 relative to the second spring 26, the inner side of the connecting plate 2 and on both sides of the insertion slot 22 are symmetrically fixed with baffle plates 23, a limiting slot 24 is provided in the side wall of the baffle plate 23, and one end of the limiting column 28 penetrates out of the insertion column 21 and is inserted into the limiting slot 24.

[0057] The four insertion columns 21 on the fixed seat 4 can also be inserted into the four insertion slots 22 on the connecting plate 2 at the same time when the fixed seat 4 is butted against the connecting plate 2, and by pressing the limiting columns 28 on both sides of the end of the insertion column 21, the limiting columns 28 drive the sliding blocks 27 to move and press the second springs 26, then the limiting columns 28 enter the cavity slots 25, and then the end of the limiting columns 28 passes through the insertion slots 22 and is clamped between the two baffles 23, and then the second springs 26 drive the limiting columns 28 to reset, so that the limiting columns 28 are inserted into the limiting slots 24, thereby limiting the fixed seat 4 and the connecting plate 2 together to play a limiting and reinforcing role, and thus effectively preventing the fixed seat 4 and the connecting plate 2 from being dislocated and separated, greatly improving the stability when the seismic isolation support 1 and the concrete prefabricated column 3 are fixedly connected;

[0058] In summary, in this structure and the staggered cooperation of the two groups of symmetrical U-shaped clamping plates 14 and the two groups of symmetrical insertion columns 21, the tight fixing between the seismic isolation support 1 and the concrete prefabricated column 3 can be effectively realized, and the displacement of the seismic isolation support 1 is prevented, greatly ensuring the stability of the connection joint.

[0059] Reference Figures 1-10 As shown in the figure, a construction method of a building seismic isolation support connection joint, characterized in that it comprises the following steps:

[0060] S1, by placing the seismic isolation support 1 between the two concrete prefabricated columns 3, and aligning the fixed seat 4 on the concrete prefabricated column 3 with the connecting plate 2 on the seismic isolation support 1, at this time the plurality of positioning columns 10 on the fixed seat 4 can be inserted one by one into each positioning hole 9 on the connecting plate 2, thereby quickly realizing the accurate positioning between the fixed seat 4 and the connecting plate 2, and further strengthening the connection strength between the fixed seat 4 and the connecting plate 2;

[0061] S2, at the same time when the fixed seat 4 is butted against the connecting plate 2, the four insertion columns 21 on the fixed seat 4 can also be inserted into the four insertion slots 22 on the connecting plate 2, and by pressing the limiting columns 28 on both sides of the end of the insertion column 21, the limiting columns 28 drive the sliding blocks 27 to move and press the second springs 26, then the limiting columns 28 enter the cavity slots 25, and then the end of the limiting columns 28 passes through the insertion slots 22 and is clamped between the two baffles 23, and then the second springs 26 drive the limiting columns 28 to reset, so that the limiting columns 28 are inserted into the limiting slots 24, thereby limiting the fixed seat 4 and the connecting plate 2 together to play a limiting and reinforcing role, and thus effectively preventing the fixed seat 4 and the connecting plate 2 from being dislocated and separated, greatly improving the stability when the seismic isolation support 1 and the concrete prefabricated column 3 are fixedly connected;

[0062] S3, by inserting the connecting steel bar 7 between the first through hole 5 and the second through hole 6, and screwing the nut 8 on both ends of the connecting steel bar 7, the two nuts 8 are respectively abutted against the side wall of the fixing base 4 and the connecting plate 2, so as to realize the fixing of the fixing base 4 and the connecting plate 2, and further ensure the fixed connection between the seismic support 1 and the concrete prefabricated column 3;

[0063] S4, when the fixing base 4 and the connecting plate 2 are fixedly connected, the fixed handle 20 can be screwed, so that the fixed handle 20 drives the bidirectional screw rod 17 to rotate, and then the bidirectional screw rod 17 drives the two movable blocks 18 to move towards each other, and then the movable block 18 drives the fixed arm 19 to rotate, so that the fixed arm 19 drives the fixed plate 12 to move, and then the two fixed plates 12 are close to each other, so that the fixed plate 12 drives the U-shaped clamping plate 14 to be close to the fixing base 4, and then the U-shaped clamping plate 14 can be clamped between the fixing base 4 and the connecting plate 2, and the rubber blocks 15 at both ends of the U-shaped clamping plate 14 can be respectively extruded on the side wall of the fixing base 4 and the connecting plate 2, so as to further limit and reinforce the fixing base 4 and the connecting plate 2;

[0064] S5, by inserting the fastening bolt 29 at the end of the U-shaped clamping plate 14, and rotating the fastening bolt 29 to make the end thereof screw on the screw hole 30 on the connecting plate 2, the U-shaped clamping plate 14 can be further prevented from loosening, and under the staggered cooperation of the structure and the two groups of symmetrical U-shaped clamping plates 14 and the two groups of symmetrical inserting columns 21, the tight fixing between the seismic support 1 and the concrete prefabricated column 3 can be effectively realized, and the active displacement of the seismic support 1 is prevented, and the stability of the connecting joint is greatly ensured.

[0065] The above only describes certain exemplary embodiments of the application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the application.

Claims

1. An architectural seismic isolation bearing connection node, characterized by, The utility model relates to a kind of seismic isolation bearing and two concrete precast columns, the two concrete precast columns are fixed with fixed seat towards seismic isolation bearing, and fixed seat and the end of connecting plate are equipped with fixed assembly between. Two concrete precast columns (3), the end of two concrete precast columns (3) is fixed with the fixed seat (4) towards seismic isolation bearing (1), and fixed seat (4) and the end of connecting plate (2) between are equipped with fixed assembly; Cavity (11) is opened in fixed seat (4), and the inside two ends of cavity (11) are symmetrically provided with movable fixed plate (12), the two sides of fixed seat (4) are all connected with multiple connecting columns (13) penetrating, one end of connecting column (13) extends into cavity (11) and is fixedly connected with fixed plate (12), and the other end of connecting column (13) is located outside fixed seat (4) and is equipped with U-shaped clamping plate (14), U-shaped clamping plate (14) can be clamped between fixed seat (4) and connecting plate (2), driving assembly is equipped on fixed seat (4), and driving assembly is used to drive two fixed plates (12) to move; Fixed in the four sides of the bottom of fixed seat (4) insert column (21), the four ends of connecting plate (2) are all equipped with the insert slot (22) matched with insert column (21), one end of insert column (21) can be inserted into insert slot (22) and is connected with limiting assembly; The driving assembly includes a two-way screw rod (17) rotatably connected to the inside middle of the cavity (11), the two ends of the two-way screw rod (17) are symmetrically screwed and connected with the movable block (18), and one end of the two-way screw rod (17) extends outside the fixed seat (4) and is fixed with a fixed handle (20), the two ends of the movable block (18) are rotatably connected with the fixed arm (19), and one end of the fixed arm (19) relative to the movable block (18) is rotatably connected with the end of the fixed plate (12). The limiting assembly includes a cavity groove (25) opened at the end of the insert column (21), the cavity groove (25) is provided with a second spring (26), the two ends of the second spring (26) are fixedly provided with a sliding block (27), one end of the sliding block (27) relative to the second spring (26) is connected with a limiting column (28), the inner side of the connecting plate (2) and located on both sides of the insert slot (22) are symmetrically fixed with a baffle (23), a limiting slot (24) is opened in the side wall of the baffle (23), one end of the limiting column (28) penetrates outside the insert column (21) and is inserted into the limiting slot (24). The fixed assembly includes a first through hole (5) opened at the four ends of the connecting plate (2), the four ends of the fixed seat (4) are all provided with a second through hole (6) same with the first through hole (5), the first through hole (5) and the second through hole (6) are connected with a connecting steel bar (7) penetrating, and the two ends of the connecting steel bar (7) are both threadedly screwed with a nut (8).

2. The connection joint of the building isolation support according to claim 1, characterized in that: The outer wall of the connecting column (13) is sleeved with a first spring (16), one end of the first spring (16) is fixedly connected with the fixed plate (12), and the other end of the first spring (16) is fixedly connected with the inner wall of the cavity (11).

3. The connection joint of the building isolation support according to claim 2, characterized in that: ​ 4. The connection joint of the building isolation support according to claim 3, characterized in that: The inner side of the U-shaped clamping plate (14) is fixed with rubber blocks (15) at both ends, and the end of the rubber block (15) is provided with a circular arc chamfer.

5. The connection joint of the building isolation bearing according to claim 4, characterized in that: The U-shaped clamping plate (14) is penetrated by a fastening bolt (29) at one end close to the connecting plate (2), a plurality of screw holes (30) are formed in the inner side of the connecting plate (2) and face the U-shaped clamping plate (14), and one end of the fastening bolt (29) passes through the rubber block (15) and is screwed into the screw hole (30).

6. The connection node of claim 5, wherein: A plurality of positioning columns (10) are fixed in an annular array on one side of the fixing seat (4) relative to the concrete prefabricated column (3), and a plurality of positioning holes (9) are formed in the outer side of the connecting plate (2) and face the positioning columns (10).

7. The construction method of a connection node of a building seismic isolation support according to any one of claims 6, characterized in that, The steps include: S1, the isolation bearing (1) is placed between the two concrete prefabricated columns (3), and the fixing seat (4) on the concrete prefabricated column (3) is aligned with the connecting plate (2) on the isolation bearing (1), at this time the plurality of positioning columns (10) on the fixing seat (4) can be inserted into each positioning hole (9) on the connecting plate (2) one by one, so that the precise positioning between the fixing seat (4) and the connecting plate (2) can be quickly realized, and the connection strength between the fixing seat (4) and the connecting plate (2) is further strengthened; S2, while the fixing seat (4) and the connecting plate (2) are connected, the four insertion columns (21) on the fixing seat (4) can also be inserted into the four insertion slots (22) on the connecting plate (2), and by pressing the limiting columns (28) on both sides of the end of the insertion column (21), the limiting column (28) drives the sliding block (27) to move and press the second spring (26), then the limiting column (28) enters the cavity slot (25), and then the end of the limiting column (28) passes through the insertion slot (22) and is clamped between the two baffles (23), and then the second spring (26) drives the limiting column (28) to reset, so that the limiting column (28) is inserted into the limiting slot (24), so that the fixing seat (4) and the connecting plate (2) can be limited together to play a limiting and reinforcing role, thereby effectively preventing the fixing seat (4) and the connecting plate (2) from being dislocated and separated, and greatly improving the stability of the isolation bearing (1) and the concrete prefabricated column (3) during fixed connection; S3, by inserting the connecting steel bars (7) between the first through hole (5) and the second through hole (6), and screwing the nuts (8) on both ends of the connecting steel bars (7), the two nuts (8) are respectively abutted against the side walls of the fixing seat (4) and the connecting plate (2), so as to realize the fixation of the fixing seat (4) and the connecting plate (2), and further ensure the fixed connection between the isolation bearing (1) and the concrete prefabricated column (3). S4, when the fixed seat (4) and the connecting plate (2) are fixedly connected, the fixed handle (20) can be screwed, the fixed handle (20) drives the bidirectional screw rod (17) to rotate, then the bidirectional screw rod (17) drives the two movable blocks (18) to move towards each other, then the movable block (18) drives the fixed arm (19) to rotate, the fixed arm (19) drives the fixed plate (12) to move, then the two fixed plates (12) are close to each other, the fixed plate (12) drives the U-shaped clamping plate (14) to be close to the fixed seat (4), then the U-shaped clamping plate (14) can be clamped between the fixed seat (4) and the connecting plate (2), and the rubber blocks (15) at both ends of the U-shaped clamping plate (14) can be respectively extruded on the side walls of the fixed seat (4) and the connecting plate (2), so that the fixed seat (4) and the connecting plate (2) can be further limited and reinforced; S5, by inserting the fastening bolt (29) into the end of the U-shaped clamping plate (14), and rotating the fastening bolt (29) to make the end thereof screwed into the screw hole (30) on the connecting plate (2), the U-shaped clamping plate (14) can be further prevented from loosening.

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