Prefabricated building wall body anti-seismic connecting joint structure

Abstract

The utility model relates to the technical field of assembly type building construction, concretely is a kind of assembly type building wall body anti-seismic connecting node structure, including pedestal and the L-shaped structure on the pedestal, and the L-shaped structure is connected with the damper between the pedestal;The bottom end of the pedestal is provided with embedded part, the L-shaped structure includes horizontal L-shaped plate and vertical L-shaped plate that is vertically arranged on the horizontal L-shaped plate;The vertical L-shaped plate includes two fixed plates connected in right angle, the outside of two the fixed plate is respectively fixed with assembly box, each the fixed plate is all provided with the threaded hole that is connected with the inside of assembly box, threaded column is arranged on the threaded hole, and the threaded column is located on the end in the inside of assembly box and is equipped with handle and gear, the inside of assembly box is also provided with lifting plate, locking mechanism, damping spring and guide mechanism. Through the energy dissipation effect of damper, wall body can consume energy by displacement and deformation in earthquake, rather than directly transmitting rigid impact.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building construction technology, specifically to a seismic-resistant connection node structure for prefabricated building walls. Background Technology

[0002] In the field of modern construction, especially in areas with high seismic resistance requirements, prefabricated buildings are favored due to their advantages such as fast construction speed and easy quality control. However, traditional prefabricated building wall connection methods have some inherent problems, especially in the face of natural disasters such as earthquakes, where their seismic performance is often insufficient. Traditional wall connections mostly rely on on-site poured concrete or the use of a large number of bolts for fixing. While these methods can provide a certain degree of connection strength, they are prone to loosening or failure under strong vibrations. On-site pouring requires waiting for the concrete to dry, increasing the construction period. During an earthquake, the lack of vibration damping mechanisms between walls leads to direct rigid contact between walls, resulting in greater transmission of destructive forces and increasing the risk of structural damage. Utility Model Content

[0003] The purpose of this utility model is to provide a seismic connection node structure for prefabricated building walls, including a base and an L-shaped structure located on the base, wherein a damper is connected between the L-shaped structure and the base;

[0004] The base is provided with an embedded part at its bottom end. The L-shaped structure includes a horizontal L-shaped plate and a vertical L-shaped plate that is vertically arranged on the horizontal L-shaped plate. The vertical L-shaped plate is connected to the inner edge of the horizontal L-shaped plate.

[0005] The vertical L-shaped plate includes two fixed plates connected at right angles. An assembly box is fixed to the outer side of each of the two fixed plates, and the bottom of the assembly box is fixed to the horizontal L-shaped plate. Each fixed plate has a threaded hole that communicates with the interior of the assembly box. A threaded post passes through the threaded hole. A handle and a gear are provided on one end of the threaded post inside the assembly box. The handle is located at the end of the threaded post, and the gear is fixedly connected to the outer side of the threaded post.

[0006] The top of the assembly box has a slot, and the interior of the assembly box is also provided with a lifting plate, a locking mechanism, a shock-absorbing spring and a guide mechanism. The lifting plate is located below the gear, the locking mechanism is located between the gear and the lifting plate to lock the gear, the shock-absorbing spring is located on the inner side of the bottom of the lifting plate and the assembly box, and the guide mechanism is located between the lifting plate and the interior of the assembly box.

[0007] In some embodiments, a handle is attached to the upper middle surface of the lifting plate.

[0008] In some embodiments, the locking mechanism includes a toothed block mounted on the upper surface of the lifting plate and engaging with the gear.

[0009] In some embodiments, the slot is provided with a sealing cap.

[0010] In some embodiments, the guiding mechanism includes a slider and a slide plate, the slide plate being mounted on the inner wall of the assembly box, the top of the slide plate having a groove, and the slider being mounted on the lifting plate and located in the groove.

[0011] In some embodiments, the guide mechanism is provided in two symmetrical arrangements.

[0012] In some of these embodiments, the dampers are provided in multiples and arranged in an array.

[0013] In some of these embodiments, the damping spring is an alloy spring.

[0014] Compared with the prior art, the present invention has at least one of the following advantages or beneficial effects:

[0015] 1) The prefabricated building wall seismic connection node structure of this utility model features multiple arrayed dampers between the L-shaped structure and the base, which effectively absorb vibration energy transmitted from the ground. The array distribution of the dampers ensures uniform force distribution and avoids local stress concentration, thereby significantly reducing the destructive force of earthquakes on the wall. Through the energy dissipation effect of the dampers, the wall can dissipate energy through displacement and deformation during an earthquake, rather than directly transmitting rigid impact.

[0016] 2) The prefabricated building wall seismic connection node structure of this utility model uses a rotating threaded column to drive a gear, allowing the threaded column to precisely engage with a pre-set hole in the wall. Then, a toothed block on the lifting plate meshes with the gear to lock the connection, forming a "double locking mechanism." Even under vibration conditions, the meshing of the toothed block and gear prevents the threaded column from loosening, ensuring long-term stability of the connection point. The shock-absorbing spring provides stable elastic support, maintaining close contact between the toothed block and gear even under long-term vibration or temperature changes, avoiding locking failure due to spring fatigue.

[0017] 3) The number of threaded holes in the prefabricated building wall seismic connection node structure of this utility model can be flexibly selected according to the wall size or building requirements. For example, the density of threaded holes can be increased in high-rise buildings to enhance connection strength, while the number can be reduced in lightweight walls to reduce material costs. Through the guide mechanism of slider and slide groove, it is ensured that the lifting plate moves only in the vertical direction, avoiding misalignment of the teeth and gears caused by lateral swaying. The two symmetrically arranged guide mechanisms further improve the stability of the structure and prevent failure caused by eccentric loads.

[0018] 5) The prefabricated building wall anti-seismic connection node structure, the sealing cover at the top of the assembly box can prevent dust, rainwater and other things from entering the internal mechanical structure, extend the service life of gears, gear blocks and other parts, and is especially suitable for outdoor or humid environments. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the seismic connection node structure of the prefabricated building wall in an embodiment of this utility model from the first angle.

[0020] Figure 2 This is a three-dimensional structural diagram of the prefabricated building wall seismic connection node structure from the second angle in an embodiment of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the seismic connection node structure of the prefabricated building wall in an embodiment of this utility model from the third angle.

[0022] Figure 4 This is a schematic diagram of the internal structure of the seismic connection node structure of the prefabricated building wall in this embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the application structure of the seismic connection node structure of the prefabricated building wall in one angle in an embodiment of this utility model.

[0024] Figure 6 This is a schematic diagram of the application structure of the prefabricated building wall seismic connection node structure in another aspect of this utility model embodiment;

[0025] In the diagram: 1. Vertical L-shaped plate; 2. Base; 3. Embedded part; 4. Horizontal L-shaped plate; 5. Damper; 6. Assembly box; 7. Threaded column; 8. Handle; 9. Gear; 10. Lifting plate; 11. Tooth block; 12. Shock-absorbing spring; 13. Sealing cover; 14. Handle; 15. Slider; 16. Slide plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-6This utility model discloses a seismic connection node structure for prefabricated building walls, including a base 2 and an L-shaped structure located on the base 2. A damper 5 is connected between the L-shaped structure and the base 2. An embedded part 3 is provided at the bottom end of the base 2. The L-shaped structure includes a horizontal L-shaped plate 4 and a vertical L-shaped plate 1 vertically arranged on the horizontal L-shaped plate 4. The vertical L-shaped plate 1 is connected to the inner edge of the horizontal L-shaped plate 4 (the inner edge of the horizontal L-shaped plate 4 is the side of the horizontal L-shaped plate 4 with a notch). The vertical L-shaped plate 1 includes two fixing plates connected at right angles. An assembly box 6 is fixed to the outer side of the two fixing plates, and the bottom of the assembly box 6 is fixed to the horizontal L-shaped plate 4. Each fixing plate has a threaded hole communicating with the interior of the assembly box 6. A threaded post 7 is provided on the threaded hole. A handle 8 and a gear 9 are provided on the threaded post 7. The handle 8 and the gear 9 are both located inside the assembly box 6 (i.e., the threaded part). The threaded column 7 is located inside the assembly box 6 and has a handle 8 and a gear 9 at one end. The handle 8 is located at the end of the threaded column 7 and the gear 9 is fixedly connected to the outside of the threaded column 7. The top of the assembly box 6 has a slot and a sealing cover 13 is detachably provided on the slot. The interior of the assembly box 6 has a lifting plate 10, a locking mechanism, a shock-absorbing spring 12 and a guide mechanism. The lifting plate 10 is located below the gear 9. The locking mechanism is located between the gear 9 and the lifting plate 10 to lock the gear 9. The locking mechanism includes a tooth block 11, which is installed on the top of the lifting plate 10 and meshes with the gear 9. A shock-absorbing spring 12 is provided between the lifting plate 10 and the bottom inner side of the assembly box 6. The guide mechanism is provided between the lifting plate 10 and the interior of the assembly box 6. A handle 14 is provided on the upper surface of the middle part of the lifting plate 10. The assembly box 6 can have multiple handles, which allows for multiple screw holes.

[0028] Specifically, the aforementioned guiding mechanism includes a slider 15 and a slide plate 16. The slide plate 16 is installed on the inner wall of the assembly box 6, and a groove is provided on the top of the slide plate 16. The slider 15 is installed on the lifting plate 10 and located in the groove. By moving the slider 15 in the groove of the slide plate 16, when the lifting plate 10 is pushed by personnel or the shock-absorbing spring 12 is subjected to vibration and elastic deformation, the lifting plate 10 can drive the slider 15 to move. The slider 15 moves linearly in the groove of the slide plate 16, which can improve the linear movement stability of the lifting plate 10.

[0029] In this embodiment, the above-mentioned guide mechanism is provided in two symmetrical arrangements. The two symmetrically arranged guide mechanisms can further improve the linear lifting stability of the lifting plate 10 and prevent the lifting plate 10 from swaying laterally.

[0030] In the embodiments of this utility model, the above-mentioned dampers 5 are provided in multiple and arrayed configurations. The dampers 5 arranged in multiple and arrayed configurations can further improve the vibration reduction performance of the vertical L-shaped plate 1 and the building wall installed on the vertical L-shaped plate 1.

[0031] Specifically, the aforementioned shock-absorbing spring 12 is an alloy spring, which has the characteristics of strong elastic support and long service life, thereby further ensuring that the tooth block 11 is stably engaged against the gear 9.

[0032] Working principle: By using the pre-embedded parts 3 at the bottom of the base 2 embedded in the ground, when the prefabricated building wall needs to be assembled, two prefabricated building walls are placed against the inner sides of the vertical L-shaped plate 1. Then, the sealing cover 13 on the slot is opened, and by pushing the handle 14 downward, the shock-absorbing spring 12 is compressed and deformed. The lifting plate 10 moves downward in a stable straight line through the guide mechanism, thereby causing the tooth block 11 to disengage from the gear 9. Then, the person's other hand enters from the slot to grasp and rotate the handle 8, thereby causing the threaded post 7 in the threaded hole to rotate and move, so that it can be fixedly assembled with the hole opened on the prefabricated building wall. If the threaded hole is opened on the building wall, the threaded post 7 in multiple threaded holes can be rotated in sequence, so that the prefabricated building wall can be fixedly assembled with the vertical L-shaped plate 1. The number of threaded holes depends on the person. The operator needs to select and then release handle 14, so that the shock-absorbing spring 12 provides elastic support to the lifting plate 10. The lifting plate 10 moves steadily upward in a straight line through the guide mechanism, thereby causing the lifting plate 10 to drive the tooth block 11 in the locking mechanism to move. The tooth block 11 can mesh with the gear 9 of the threaded column 7 and abut against it, thereby locking the threaded column 7. Under the condition of ground vibration, the shock-absorbing spring 12 buffers and offsets the vibration, thereby ensuring that the tooth block 11 is stably meshed against the gear 9, ensuring the stability and reliability of the threaded column 7, and enabling the two prefabricated building walls to be stably and reliably fixed together without loosening. This ensures the connection stability between the threaded column 7 and the prefabricated building wall. When subjected to ground vibration, the damper 5 can buffer the vibration brought by the ground to the prefabricated building wall, and has excellent vibration reduction performance.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A seismic-resistant connection node structure for prefabricated building walls, characterized in that, It includes a base and an L-shaped structure located on the base, and a damper is connected between the L-shaped structure and the base; The base is provided with an embedded part at the bottom end. The L-shaped structure includes a horizontal L-shaped plate and a vertical L-shaped plate vertically arranged on the horizontal L-shaped plate, and the vertical L-shaped plate is connected to the inner edge of the horizontal L-shaped plate. The vertical L-shaped plate includes two fixed plates connected at right angles. An assembly box is fixed to the outer side of each of the two fixed plates, and the bottom of the assembly box is fixed to the horizontal L-shaped plate. Each fixed plate has a threaded hole that communicates with the interior of the assembly box. A threaded post passes through the threaded hole. A handle and a gear are provided on one end of the threaded post inside the assembly box. The handle is located at the end of the threaded post, and the gear is fixedly connected to the outer side of the threaded post. The top of the assembly box has a slot, and the interior of the assembly box is also provided with a lifting plate, a locking mechanism, a shock-absorbing spring and a guide mechanism. The lifting plate is located below the gear, the locking mechanism is located between the gear and the lifting plate to lock the gear, the shock-absorbing spring is located on the inner side of the bottom of the lifting plate and the assembly box, and the guide mechanism is located between the lifting plate and the interior of the assembly box.

2. The prefabricated building wall seismic connection node structure as described in claim 1, characterized in that, A handle is connected to the upper middle surface of the lifting plate.

3. The prefabricated building wall seismic connection node structure as described in claim 1, characterized in that, The locking mechanism includes a toothed block, which is mounted on the upper surface of the lifting plate and engages with the gear.

4. The prefabricated building wall seismic connection node structure as described in claim 1, characterized in that, A sealing cap is provided on the slot.

5. The prefabricated building wall seismic connection node structure as described in claim 1, characterized in that, The guiding mechanism includes a slider and a slide plate. The slide plate is installed on the inner wall of the assembly box, and a groove is provided on the top of the slide plate. The slider is installed on the lifting plate and located in the groove.

6. The prefabricated building wall seismic connection node structure as described in claim 1, characterized in that, The guide mechanism has two parts, which are arranged symmetrically.

7. The prefabricated building wall seismic connection node structure as described in claim 1, characterized in that, The dampers are provided in multiple units and arranged in an array.

8. The prefabricated building wall seismic connection node structure as described in claim 1, characterized in that, The shock-absorbing spring is an alloy spring.

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