CN116837980A - Shock insulation support with fixed area expansion structure and use method thereof - Google Patents

Abstract

The invention discloses a shock insulation support with a fixed area expansion structure and a use method thereof, wherein the shock insulation support comprises two steel plate seats, a plurality of rubber layers and steel plate layers which are distributed at intervals are arranged between the steel plate seats, and the rubber layers are adhered and fixed with the steel plate layers; further comprises: the connecting holes are formed in the front end and one side of the steel plate seat, studs are mounted in the connecting holes and are in rotary connection with the steel plate seat, connecting blocks are arranged at the rear end and the other side of the steel plate seat and are in plug-in fit with the connecting holes, screw holes are formed in the connecting blocks, and the screw holes are matched with the studs; the mounting hole, it sets up around between the steel sheet seat, upper and lower install fixed establishment between the mounting hole, the inside upper and lower end of fixed establishment all is provided with the reference column, not only can improve the shock resistance of shock insulation support, can realize fixed area's extension moreover, and guarantee the steadiness.

Description

A kind of seismic isolation bearing with fixed area expansion structure and its use method

Technical field

The present invention relates to the technical field of seismic isolation bearings, specifically a seismic isolation bearing with a fixed area expansion structure and a method of using the same.

Background technique

The traditional anti-seismic technology is to firmly connect the superstructure and foundation of the building, that is, to build the house stronger, use thicker steel bars, and pour more concrete. However, the anti-seismic effect is not ideal. The seismic isolation bearing is to add a seismic isolation layer between the superstructure and the foundation. The seismic isolation bearing refers to the support device set up by the structure to meet the seismic isolation requirements. It is to add a seismic isolation layer between the superstructure and the foundation and install rubber. The isolation bearing serves as a soft connection with the ground. Through this technology, about 80% of the energy of the earthquake can be offset. For example, laminated rubber bearings (also called isolation rubber bearings, laminated rubber pads, etc.). It is a structural member with small horizontal stiffness and large vertical stiffness. It can withstand large horizontal deformation and can be used as part of the load-bearing system.

For example, the Chinese authorized patent "A Seismic Isolation Bearing" with announcement number CN108824649B includes a support base and a shell provided on the support base. The shell includes a lower outer outer panel and an upper outer outer panel that are separated from each other; assembly and a second sliding assembly, the first sliding assembly is fixed in the lower outer panel, and the second sliding assembly is fixed in the upper outer panel; and a bracket assembly connecting the first sliding assembly and the second sliding assembly, the bracket assembly is configured to be able to relative to the second sliding assembly. A sliding component and a second sliding component move within a certain range. In the event of an earthquake, it can move freely in the horizontal direction, which greatly reduces the damage to the upper structure. It also facilitates the production, processing and assembly of the support, while keeping the support structure compact.

Although the above-mentioned existing technology can buffer ground vibrations, when applied to a load-bearing column with a large supporting surface, the stress area will be concentrated and uneven. However, the existing earthquake isolation bearing cannot expand the fixed area. The connection method is relatively single and cannot ensure the firmness of the connection during use, so it does not meet the existing needs. In this regard, we propose a seismic isolation bearing with a fixed area expansion structure and its use method.

Contents of the invention

The purpose of the present invention is to provide a seismic isolation bearing with a fixed area expansion structure and a method of using the same, so as to solve the problem of how to achieve fixed area expansion while improving the seismic resistance performance of the isolation bearing proposed in the above background technology.

In order to achieve the above object, the present invention provides the following technical solution: a seismic isolation support with a fixed area expansion structure and a method of using the same, including a steel plate seat, and two steel plate seats are provided, and several steel plate seats are provided between them The rubber layer and the steel plate layer are spaced apart, and the rubber layer and the steel plate layer are adhered and fixed; it also includes:

A connection hole is provided at the front end and one side of the steel plate seat. A stud is installed inside the connection hole, and the stud is rotatably connected to the steel plate seat. The rear end and the other side of the steel plate seat are both provided with The connecting block is plug-fitted with the connecting hole. The connecting block is provided with screw holes inside, and the screw holes are adapted to the studs;

Mounting holes are arranged around the space between the steel plate seats. A fixing mechanism is installed between the upper and lower mounting holes. Positioning posts are provided at the upper and lower ends of the fixing mechanism, and the positioning posts and the fixing mechanism are limited to slide. .

Preferably, the front end and the rear end of one side of the steel plate seat are both rotatably installed with adjustment knobs, a worm is installed at one end of the adjustment knob inside the steel plate seat, and a transmission is installed at one end of the stud inside the steel plate seat. shaft, and the transmission shaft is rotatably connected to the steel plate base. A worm gear is fixed at the middle position of the transmission shaft, and the worm gear is adapted to the worm.

Preferably, the inner wall of the mounting hole is fixedly provided with annularly distributed limiting protrusions, and the outer wall of the positioning post is provided with annularly distributed limiting grooves, and the limiting protrusions are slidably matched with the limiting grooves. The positioning post is provided with a threaded cavity inside, and an adjusting bolt is provided at the middle position of the fixing mechanism, and the adjusting bolt is rotationally connected to the fixing mechanism. A double-thread transmission rod is fixedly installed inside the adjustment bolt, and the double-thread transmission Both ends of the rod extend into the threaded cavity inside the positioning column respectively, and the double-threaded transmission rod is adapted to the threaded cavity.

Preferably, the upper and lower ends of the inner wall of the fixing mechanism are provided with limited chute, and an extension tube is arranged between the fixation mechanism and the steel plate seat. One end of the extension tube is fixed to the steel plate seat, and the other end of the extension tube extends to The inside of the limit chute.

Preferably, a number of annularly distributed damping buffers are provided inside the rubber layer. The fixed end of the damping buffer is fixed to the rubber layer, and the movable end of the damping buffer is fixed to the steel plate layer. The damping buffer has A support spring is fixedly installed between the movable end and the fixed end.

Preferably, the rubber layer and the steel plate layer are wrapped with a rubber protective layer, and the rubber protective layer is adhered and fixed to the rubber layer and the steel plate layer respectively.

Preferably, the steel plate layer is provided with heat dissipation holes inside, and there are three heat dissipation holes, and both ends of the heat dissipation holes penetrate both sides of the steel plate layer.

The method of using a seismic isolation bearing with a fixed area expansion structure includes the following steps:

Step 1. When the area of the isolation bearing is expanded, align the connecting hole of one of the isolation bearings with the connecting block of the other isolation bearing, and apply pressure between the two to ensure a close fit;

Step 2. Then use a tool to turn the adjusting knob. One end of the adjusting knob drives the worm to rotate. At the same time, it drives the transmission shaft to rotate in cooperation with the worm gear, thereby driving the stud to rotate. Under the friction between the stud and the screw hole, the The connecting block continuously extends toward the inside of the connecting hole until it forms a fit, realizing the splicing between the isolation supports and thereby expanding the overall fixed area;

Step 3. When connecting the foundation and supporting structure, use a wrench to turn the adjusting bolt. The adjusting bolt drives the double-threaded transmission rod to rotate. The two ends of the double-threaded transmission rod are located in the threaded cavity inside the positioning column. The double-threaded transmission rod Friction occurs with the threaded cavity and cooperates with the guiding movement of the steel plate base to the positioning column, thereby realizing the linear displacement of the positioning column, causing the positioning column to continuously move toward the outside of the fixed mechanism until the positioning column enters the foundation and the inside of the supporting mechanism to achieve seismic isolation support. Tightly fix the base to the foundation and supporting mechanism.

Compared with the prior art, the beneficial effects of the present invention are:

1. The seismic isolation supports of the present invention can effectively expand the fixed area. When connecting adjacent seismic isolation supports, align the connection hole of one of the seismic isolation supports with the connection of the other seismic isolation support. block, and apply pressure between the two to ensure a close fit, and then use a tool to turn the adjustment knob. One end of the adjustment knob drives the worm to rotate. At the same time, in cooperation with the worm gear, it drives the transmission shaft to rotate, thereby driving the stud to rotate. Rotation, under the friction between the stud and the screw hole, causes the connecting block to continuously extend toward the inside of the connecting hole until it forms a fit. In this way, according to the area of the end face of the building support structure, the area of the earthquake isolation bearing is expanded reasonably. , thereby achieving an effective connection between the foundation and the supporting structure. On the one hand, this structure is easy to operate and can quickly expand the area of the isolation support. On the other hand, it uses the cooperation of worms and worm gears to realize stud transmission, which is affected by its own characteristics. The lockability can prevent the separation between the connecting hole and the connecting block, and the firmness is effectively improved.

2. The present invention is based on the fixed mechanism in the connection method between the isolation bearing and the foundation and the supporting structure. After placing the isolation bearing at the designated position, the staff can turn the adjusting bolt with a wrench, and the adjusting bolt can drive the two The threaded transmission rod rotates, and the two ends of the double-threaded transmission rod are respectively located in the threaded cavity inside the positioning column. The double-threaded transmission rod rubs against the threaded cavity, and cooperates with the guiding movement of the steel plate base to the positioning column, thereby realizing the straight line of the positioning column. The displacement causes the positioning column to continuously move toward the outside of the fixed mechanism until the positioning column enters the inside of the foundation and the supporting mechanism, thereby realizing the tight fixation of the isolation bearing and the foundation and the supporting mechanism. This structure is highly convenient and does not need to be used one by one. The installation of bolt pairs not only reduces the installation difficulty, but also effectively improves the installation efficiency of the isolation bearing.

3. The present invention forms a shock-absorbing structure of a seismic isolation support by providing a rubber layer, a steel plate layer, a support spring and a damping buffer. The rubber layer and the steel plate layer form the main body of the seismic isolation. The tight connection of multiple layers can improve the overall firmness. When vibration occurs, the elastic structure of the rubber layer can effectively absorb and alleviate the vibration force and achieve primary shock absorption. At the same time, the compression of the rubber layer will also cause the damping buffer to shrink. During the process, the support spring is squeezed, which can form a force transformation while elastically deforming, thereby further offsetting the vibration force. After the vibration force disappears, the whole body can slowly rebound under the action of the damping buffer. This avoids instability caused by rapid rebound and reset, further improving the overall shock absorption effect.

4. The present invention is provided with heat dissipation holes through the interior of the steel plate layer. Since the rubber material has poor thermal conductivity, and the force is continuously converted to generate heat energy during the shock absorption process, the steel plate layer can absorb the internal heat and discharge it through the heat dissipation holes. Externally, the airflow from the external environment can also pass through the heat dissipation holes to further remove internal heat, thereby ensuring the service life of the isolation bearing.

Description of the drawings

Figure 1 is a perspective view of the present invention;

Figure 2 is a top view of the internal structure of the present invention;

Figure 3 is a partial enlarged view of area A in Figure 2 of the present invention;

Figure 4 is a side view of the internal structure of the present invention;

Figure 5 is a partial enlarged view of area B in Figure 4 of the present invention;

Figure 6 is a schematic diagram of the internal structure of the fixing mechanism of the present invention.

In the picture: 1. Steel base; 2. Rubber protective layer; 3. Installation hole; 4. Limiting protrusion; 5. Fixing mechanism; 6. Extension tube; 7. Adjustment bolt; 8. Connection hole; 9. Stud ; 10. Connecting block; 11. Screw hole; 12. Adjustment knob; 14. Rubber layer; 15. Damping buffer; 16. Drive shaft; 17. Worm gear; 18. Worm; 19. Steel plate layer; 20. Heat dissipation hole; 21. Support spring; 22. Limit chute; 23. Positioning column; 24. Double-thread transmission rod; 25. Threaded cavity.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments.

Please refer to Figures 1-6, an embodiment provided by the present invention: a seismic isolation support with a fixed area expansion structure and its use method, including a steel plate base 1, and there are two steel plate bases 1, the steel plate base 1 There are several rubber layers 14 and steel plate layers 19 distributed at intervals, and the rubber layer 14 and the steel plate layer 19 are adhered and fixed; it also includes:

The connecting hole 8 is provided at the front end and one side of the steel plate base 1. A stud 9 is installed inside the connecting hole 8, and the stud 9 is rotatably connected to the steel plate base 1. The rear end and the other side of the steel plate base 1 are both provided with There is a connecting block 10, and the connecting block 10 is plug-fitted with the connecting hole 8. The connecting block 10 is provided with screw holes 11 inside, and the screw holes 11 are adapted to the studs 9;

The mounting holes 3 are arranged around the space between the steel plate seats 1. A fixing mechanism 5 is installed between the upper and lower mounting holes 3. Positioning posts 23 are provided at the upper and lower ends of the fixing mechanism 5, and the positioning posts 23 are limited to the fixing mechanism 5. Bit slide.

When in use, the rubber layer 14 and the steel plate layer 19 form the main body of the earthquake isolation. The tight connection of multiple layers can improve the overall firmness and support. When vibration occurs, the elastic structure of the rubber layer 14 can effectively absorb and alleviate the vibration force. , to achieve primary shock absorption. At the same time, when the rubber layer 14 is compressed, it will also drive the damping buffer 15 to shrink. During the shrinkage process, the support spring 21 is squeezed, which can form a force transformation while elastically deforming. , thereby further achieving the offset of the vibration force.

Please refer to Figure 2 and Figure 3. The front end and the rear end of one side of the steel plate base 1 are both equipped with an adjustment knob 12. The adjustment knob 12 is located at one end of the steel plate base 1 and is equipped with a worm 18. The stud 9 is located on the steel plate base 1. One end of the interior is provided with a transmission shaft 16, and the transmission shaft 16 is rotationally connected to the steel plate base 1. A worm gear 17 is fixedly installed at the middle position of the transmission shaft 16, and the worm gear 17 is adapted to the worm 18. One end of the adjustment knob 12 drives the worm. 18 rotates, and at the same time, in cooperation with the worm gear 17, the transmission shaft 16 is driven to rotate, thereby driving the stud 9 to rotate. Under the friction between the stud 9 and the screw hole 11, the connecting block 10 is continuously moved toward the inside of the connecting hole 8. On the one hand, this structure is easy to operate and can quickly expand the area of the isolation support. On the other hand, the cooperation of the worm 18 and the worm gear 17 is used to realize stud transmission. Due to its self-locking property, it can avoid connecting 10 It is separated from the connecting hole 8, and the firmness is effectively improved.

Please refer to Figure 1 and Figure 6. The inner wall of the mounting hole 3 is fixedly provided with annularly distributed limit protrusions 4. The outer wall of the positioning post 23 is provided with annularly distributed limit grooves, and the limit protrusions 4 are in contact with the limit grooves. The grooves are slidingly matched, and the positioning column 23 is provided with a threaded cavity 25 inside. An adjusting bolt 7 is provided at the middle position of the fixing mechanism 5, and the adjusting bolt 7 is rotationally connected to the fixing mechanism 5. The adjusting bolt 7 is fixedly installed with double threads inside. The two ends of the transmission rod 24 and the double-threaded transmission rod 24 respectively extend into the threaded cavity 25 inside the positioning column 23, and the double-threaded transmission rod 24 is adapted to the threaded cavity 25, and the positioning column 23 constantly moves toward the outside of the fixing mechanism 5. Until the steel plate seat 1 enters the inside of the foundation and supporting mechanism, the seismic isolation bearing and the foundation and supporting mechanism are tightly fixed. This structure has high convenience and does not need to use bolt pairs one by one for installation. It not only reduces the difficulty of installation, but also reduces the installation difficulty. It also effectively improves the installation efficiency of the isolation bearing.

Please refer to Figure 6. The upper and lower ends of the inner wall of the fixing mechanism 5 are provided with limited chute 22. An extension tube 6 is arranged between the fixation mechanism 5 and the steel plate base 1. One end of the extension tube 6 is fixed to the steel plate base 1, and the extension tube 6 is fixed to the steel plate base 1. The other end of 6 extends to the inside of the limiting chute 22. Under the limit of the extension tube 6 and the fixing mechanism 5, the fixing mechanism 5 cannot rotate, so that it is easy to rotate the adjusting bolt 7 to adjust the double-threaded transmission rod 24, and Relative displacement can occur between the extension tube 6 and the fixed mechanism 5 to avoid affecting the shock absorbing mechanism.

Please refer to Figure 4. A number of annularly distributed damping buffers 15 are provided inside the rubber layer 14. The fixed ends of the damping buffers 15 are fixed to the rubber layer 14, and the movable ends of the damping buffers 15 are fixed to the steel plate layer 19. A support spring 21 is fixedly installed between the movable end and the fixed end of the damping buffer 15. After the vibration force disappears, the entire body can rebound slowly under the action of the damping buffer 15 to avoid instability caused by rapid rebound reset. , further improving the overall shock absorption effect.

Please refer to Figure 1 and Figure 2. The rubber layer 14 and the steel plate layer 19 are wrapped with a rubber protective layer 2, and the rubber protective layer 2 is adhered and fixed to the rubber layer 14 and the steel plate layer 19 respectively to prevent the rubber layer 14 and the steel plate layer 19 from being exposed. Damaged by the environment.

Please refer to Figure 1, Figure 4 and Figure 5. There are heat dissipation holes 20 inside the steel plate layer 19, and there are three heat dissipation holes 20. Both ends of the heat dissipation holes 20 penetrate both sides of the steel plate layer 19. Since the rubber material conducts heat, The effect is poor, and during the shock absorption process, the force is continuously converted to generate heat energy. The steel plate layer 19 can absorb the internal heat and discharge it to the outside through the heat dissipation holes 20. At the same time, the air flow of the external environment can also pass through the heat dissipation holes 20, further realizing Internal heat is removed to ensure the service life of the isolation bearing.

The method of using a seismic isolation bearing with a fixed area expansion structure includes the following steps:

Step 1. When the area of the isolation bearing is expanded, align the connecting hole 8 of one of the isolation bearings with the connecting block 10 of the other isolation bearing, and apply pressure between the two to ensure a close fit;

Step 2: Then use a tool to turn the adjusting knob 12. One end of the adjusting knob 12 drives the worm 18 to rotate. At the same time, it drives the transmission shaft 16 to rotate in cooperation with the worm gear 17, thereby driving the stud 9 to rotate. When the stud 9 and the Under the friction of the screw hole 11, the connecting block 10 continuously extends toward the inside of the connecting hole 8 until it forms a fit, realizing the splicing between the isolation supports, and thereby realizing the expansion of the overall fixed area;

Step 3: When connecting the foundation and the supporting structure, use a wrench to turn the adjusting bolt 7. The adjusting bolt 7 drives the double-threaded transmission rod 24 to rotate. The two ends of the double-threaded transmission rod 24 are respectively located in the threaded cavity 25 inside the positioning column 23. , the double-thread transmission rod 24 rubs against the thread cavity 25, and cooperates with the guiding movement of the steel plate base 1 to the positioning column 23, thereby realizing the linear displacement of the positioning column 23, causing the positioning column 23 to continuously move toward the outside of the fixing mechanism 5, until the positioning column 23 Enter the inside of the foundation and supporting mechanism to achieve tight fixation of the isolation bearing and the foundation and supporting mechanism.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as illustrative and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is therefore intended that all claims falling within the claims All changes within the meaning and scope of equivalent elements are included in the present invention. Any reference signs in the claims shall not be construed as limiting the claim in question.

Claims (8)

1. A seismic isolation support with a fixed area expansion structure, including a steel plate seat (1), and two steel plate seats (1) are provided, and a number of spaced rubber layers are arranged between the steel plate seats (1) (14) and the steel plate layer (19), and the rubber layer (14) and the steel plate layer (19) are adhered and fixed; It is characterized by: also including: The connecting hole (8) is provided at the front end and one side of the steel plate seat (1). A stud (9) is installed inside the connecting hole (8), and the stud (9) is connected to the steel plate seat (1). ) rotation connection, the rear end and the other side of the steel plate seat (1) are provided with a connecting block (10), and the connecting block (10) is plug-fitted with the connecting hole (8), the connecting block (10) Screw holes (11) are provided inside, and the screw holes (11) match the studs (9); Mounting holes (3) are arranged around the space between the steel plate seats (1). A fixing mechanism (5) is installed between the upper and lower mounting holes (3). The upper and lower ends of the fixing mechanism (5) are They are all provided with positioning posts (23), and the positioning posts (23) and the fixing mechanism (5) limit sliding. 2. A seismic isolation support with a fixed area expansion structure according to claim 1, characterized in that: the front end and the rear end of the steel plate seat (1) are both rotatably installed with adjustment knobs (12 ), the adjustment knob (12) is equipped with a worm (18) at one end located inside the steel plate seat (1), and the stud (9) is equipped with a transmission shaft (16) at one end located inside the steel plate seat (1), and The transmission shaft (16) is rotatably connected to the steel plate seat (1). A worm gear (17) is fixed at the middle position of the transmission shaft (16), and the worm gear (17) matches the worm (18). 3. A seismic isolation support with a fixed area expansion structure according to claim 1, characterized in that: annularly distributed limiting protrusions (4) are fixedly provided on the inner wall of the mounting hole (3), The outer wall of the positioning column (23) is provided with annularly distributed limiting grooves, and the limiting protrusions (4) are slidably matched with the limiting grooves. The interior of the positioning column (23) is provided with a threaded cavity (25). ), an adjusting bolt (7) is provided at the middle position of the fixing mechanism (5), and the adjusting bolt (7) is rotationally connected to the fixing mechanism (5), and a double thread is fixedly installed inside the adjusting bolt (7) The two ends of the transmission rod (24) and the double-threaded transmission rod (24) respectively extend into the threaded cavity (25) inside the positioning column (23), and the double-threaded transmission rod (24) is adapted to the threaded cavity (25) . 4. A seismic isolation support with a fixed area expansion structure according to claim 3, characterized in that: the upper and lower ends of the inner wall of the fixing mechanism (5) are provided with limited chute (22). An extension tube (6) is provided between the mechanism (5) and the steel plate seat (1). One end of the extension tube (6) is fixed to the steel plate seat (1), and the other end of the extension tube (6) extends to the limit slide. Inside the groove (22). 5. A seismic isolation support with a fixed area expansion structure according to claim 4, characterized in that: a plurality of annularly distributed damping buffers (15) are provided inside the rubber layer (14). The fixed end of the damper (15) is fixed to the rubber layer (14), and the movable end of the damping buffer (15) is fixed to the steel plate layer (19). A support spring (21) is fixedly installed between them. 6. A seismic isolation support with a fixed area expansion structure according to claim 5, characterized in that: the rubber layer (14) and the steel plate layer (19) are wrapped with a rubber protective layer (2), And the rubber protective layer (2) is adhered and fixed to the rubber layer (14) and the steel plate layer (19) respectively. 7. A seismic isolation support with a fixed area expansion structure according to claim 6, characterized in that: a heat dissipation hole (20) is provided inside the steel plate layer (19), and the heat dissipation hole (20) is provided There are three, and both ends of the heat dissipation holes (20) penetrate both sides of the steel plate layer (19). 8. The method of using the earthquake isolation support with a fixed area expansion structure according to claim 7, characterized in that it includes the following steps: Step 1. When the area of the seismic isolation support is expanded, align the connection hole (8) of one of the seismic isolation supports with the connection block (10) of the other seismic isolation support, and apply pressure between the two to ensure Intimate fit; Step 2: Then use a tool to turn the adjusting knob (12). One end of the adjusting knob (12) drives the worm (18) to rotate. At the same time, it drives the transmission shaft (16) to rotate in cooperation with the worm gear (17), thereby driving the screw. The column (9) rotates, and under the friction between the stud (9) and the screw hole (11), the connecting block (10) continuously extends toward the inside of the connecting hole (8) until it forms a fit, thereby realizing a seismic isolation support. The splicing between them achieves the expansion of the overall fixed area; Step 3. When connecting the foundation and supporting structure, use a wrench to turn the adjusting bolt (7). The adjusting bolt (7) drives the double-threaded transmission rod (24) to rotate. The two ends of the double-threaded transmission rod (24) are respectively located at the positioning position. In the threaded cavity (25) inside the column (23), the double-threaded transmission rod (24) rubs against the threaded cavity (25), and cooperates with the guiding movement of the steel plate seat (1) to the positioning column (23), thereby realizing the positioning column. The linear displacement of (23) causes the positioning column (23) to continuously move toward the outside of the fixed mechanism (5) until the positioning column (23) enters the inside of the foundation and the supporting mechanism, thereby achieving a tight connection between the isolation support and the foundation and the supporting mechanism. fixed.