Adjustable shock-absorbing base for assembled buildings

By introducing a multi-level buffering design of connecting frames, buffer frames and chassis into prefabricated buildings, the problem of lack of shock absorption function of prefabricated building support seats is solved, the vibration is effectively reduced and the stability of the building is improved, which adapts to the installation requirements of pillars of different specifications.

CN120231386BActive Publication Date: 2025-09-23CHENGDU IND VOCATIONAL TECHN COLLEGE
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Patent Information

Application Number
CN202510718784.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2025-09-23
Estimated Expiration
2045-05-30

AI Technical Summary

Technical Problem

Existing prefabricated building support bases lack effective shock absorption functions, which leads to stress concentration in the building structure due to vibration under the action of earthquakes, strong winds or other external forces, resulting in damage to components and even overall structural instability.

Method used

The structural design includes a connecting frame, a buffer frame and a chassis. The vibration force is reduced by multiple stages through the first-level buffer head and the second-level buffer head. Combined with the slow reset mechanism of the stable reset head, the synergistic effect of the hydraulic cylinder, the spring damping shaft and the magnetic plate is used to disperse and eliminate the vibration.

Benefits of technology

It effectively reduces the impact of vibration, improves the stability and safety of the building, avoids secondary vibration caused by too fast reset, adapts to building pillars of different specifications, and is easy to operate.

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Abstract

The present invention relates to the technical field of prefabricated buildings, and provides an adjustable shock-absorbing base for prefabricated buildings, comprising: a connecting frame, the connecting frame being connected to the building pillars of the prefabricated building by adjusting a fixing frame to adapt to the installation of building pillars of different specifications; a buffer frame, located on the bottom side of the connecting frame, the bottom side of the buffer frame being provided with a chassis, the top side of the buffer frame being provided with a plurality of first-level buffer heads, for timely feedback through the abutment disc fixed on the bottom side of the connecting frame when the connecting frame vibrates, thereby reducing the force generated by the vibration, and the first-level buffer head will immediately transmit the force to the second-level buffer head after receiving the force, thereby further reducing the force generated by the vibration. Through the synergistic effect of the first-level buffer head and the second-level buffer head, multi-level reduction of vibration is achieved, and the surround design can target the force from a specific direction, thereby more effectively protecting the building structure from the influence of vibration.
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Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, in particular to an adjustable shock-absorbing base for prefabricated buildings. Background Art

[0002] Prefabricated buildings are structures assembled on-site using prefabricated components. Their advantages include rapid construction, minimal climatic constraints, labor savings, and improved building quality. Due to their speed and low production costs, prefabricated buildings have rapidly gained popularity. Currently, most prefabricated buildings utilize support blocks for their support.

[0003] Existing prefabricated building support bases mostly use simple rigid connections and lack effective shock absorption. Under the influence of earthquakes, strong winds, or other external forces, the building structure is prone to stress concentration due to vibration, leading to component damage and even overall structural instability. Therefore, there is a need for an adjustable shock-absorbing base for prefabricated buildings. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides an adjustable shock-absorbing base for prefabricated buildings, which solves the problem that most of the existing prefabricated building support bases adopt simple rigid connections and lack effective shock-absorbing functions.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] An adjustable shock-absorbing base for an assembled building, comprising:

[0007] A connecting frame, which is connected to the building pillars of the prefabricated building by adjusting the fixing frame to adapt to the installation of building pillars of different specifications;

[0008] The buffer frame is located on the bottom side of the connecting frame. A chassis is provided on the bottom side of the buffer frame. A plurality of primary buffer heads are installed on the top side of the buffer frame. When the connecting frame vibrates, the primary buffer head will immediately transmit the force to the secondary buffer head after receiving the force to further reduce the force generated by the vibration. The secondary buffer head is installed inside the chassis. After the vibration is eliminated, the chassis slows down the reset speed of the primary and secondary buffer heads through the stable reset head to avoid secondary vibration caused by excessive reset.

[0009] The middle end of the top side of the chassis is connected to the bottom side center of the abutting disc through a spring damping shaft 2, and the buffer frame is connected to the four corners of the inner wall of the chassis through telescopic rods.

[0010] Preferably, the first-level buffer head includes a hydraulic cylinder fixedly connected to the top side of the buffer frame, two openings 1 are provided on the top side of the hydraulic cylinder, and an opening 2 is provided on the bottom side of the hydraulic cylinder, wherein a correction head is slidably connected to the interior of one of the openings 1, and an abutment joint is slidably connected to the interior of the other opening 1, and the interior of the opening 2 is slidably connected to a transmission head via a spring, the interior of the hydraulic cylinder is filled with hydraulic oil, the top of the abutment joint abuts against the bottom side of the abutment disc, and the correction head is located at the outer periphery of the bottom side of the connecting frame.

[0011] Preferably, the hydraulic cylinders are equidistantly arranged around the bottom side of the connecting frame to precisely reduce the force in a specific direction.

[0012] Preferably, a telescopic sleeve is provided on the side of the transmission head close to the second opening to protect the spring.

[0013] Preferably, the secondary buffer head includes a contact head fixedly connected to the bottom side of the transmission head and a slide fixedly connected to the outer periphery of the bottom side of the inner wall of the chassis, one end of the slide is slidably connected to a slide, the top side of the slide is connected to the contact head through a connecting rod, one end of the connecting rod is rotatably connected to the top side of one end of the slide, the other end of the connecting rod is rotatably connected to the bottom side of the contact head, the other end of the slide is sleeved with a shell, the bottom side of the shell is fixedly connected to the bottom side of the inner wall of the chassis, the inner wall of the shell is fixedly connected to magnetic piece 2, one side of the slide is fixedly connected to magnetic piece 1, both magnetic piece 1 and magnetic piece 2 are made of magnets, and the adjacent sides of magnetic piece 1 and magnetic piece 2 repel each other with the same polarity.

[0014] Preferably, both sides of the other end of the slide seat are fixedly connected to slide rails, and both sides of one end of the abutment head are fixedly connected to sliding heads, and the sliding heads are slidably connected inside the slide rails.

[0015] Preferably, the stable reset head includes a reset head, the side of the reset head away from the contact head is connected to the inner middle end of the chassis through a spring damping shaft, and the reset head and the side close to the contact head are both provided with inclined surfaces, and the two inclined surfaces abut each other.

[0016] Preferably, the adjustment fixing frame includes a threaded disk rotatably connected to the inside of the connecting frame and four fixing frames slidably connected to the top side of the connecting frame. The top side of the threaded disk is provided with a thread, and the bottom side of the fixing frame is slidably connected to the inside of the thread. The fixing frame is fixed to the building pillar by stud nuts.

[0017] Preferably, a force-applying groove is provided at the center of the threaded disk for applying force to rotate the threaded disk.

[0018] Preferably, fixing holes for assisting the shock-absorbing base in being installed and fixed on the ground are provided at the four corners of the bottom end of the chassis.

[0019] Working principle: When the building pillar is under stress, the abutment disc on the bottom side of the connecting frame connected to the building pillar will deviate and vibrate to a certain extent, and force will be applied to the abutment joint in the direction of the force, so that the abutment joint will be displaced inside the hydraulic cylinder, and the spring damping shaft 2 will be compressed to disperse and consume the initial force, thereby reducing the impact of vibration. The stressed abutment joint pushes the hydraulic oil inside the hydraulic cylinder to push the transmission head and the correction head. The pushed transmission head pushes the bottom contact head to displace, and the reset head abutted by the inclined surface on the contact head loses the contact with the contact head, and is gradually reset under the reset push of the compressed spring damping shaft 1. When the contact head moves obliquely downward, it will push the slide to slide on the slide seat through the connecting rod, thereby pushing it to The connected magnetic piece 1 slides inside the shell and gradually enters the repulsive force range of the magnetic piece 2. It is affected by the magnetic repulsion of the magnetic piece 2 to achieve force dispersion and elimination. The displaced correction head will rise, allowing the correction head to apply force to the outer peripheral edge of the bottom side of the connecting frame, thereby avoiding further shaking caused by vibration, causing the connecting frame and the structure connected to the top side of the connecting frame to further angular displacement. After the vibration disappears, the abutment disc no longer applies force to the previously displaced abutment head, and the abutment head is lifted and reset, and force is applied to the reset head through the inclined surface, and the spring damping shaft 1 is compressed, so that the abutment head can be slowly reset to avoid the occurrence of secondary vibration caused by resetting too quickly. Subsequently, the magnetic piece 1 and the spring damping shaft 2 are reset and restored to calm.

[0020] The present invention provides an adjustable shock-absorbing base for assembled buildings. It has the following beneficial effects:

[0021] 1. The present invention realizes multi-level reduction of vibration through the synergistic effect of the first-level buffer head and the second-level buffer head. The surround design can target the force from a specific direction to more effectively protect the building structure from vibration.

[0022] 2. The present invention avoids secondary vibration caused by too fast reset under the slow reset mechanism of the stable reset head, significantly improving the stability and safety of the building. In addition, the correction head is lifted in time in the direction of vibration to support the bottom edge of the connecting frame to avoid excessive displacement of the structure caused by further shaking caused by vibration.

[0023] 3. The present invention can adjust the spacing between the fixing frames through a simple rotation operation, thereby adapting to building pillars of different specifications. Construction workers only need to fix the building pillars and the fixing frames through studs and nuts. The operation is simple and no additional adaptation measures are required. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2Schematic diagram of the internal structure of the buffer rack of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the hydraulic cylinder of the present invention;

[0027] Figure 4 Schematic diagram of the connection structure of the reset head of the present invention;

[0028] Figure 5 Schematic diagram of the connection structure of the slide of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the threaded disk and the connecting frame of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the threaded disk of the present invention;

[0031] Figure 8 Schematic diagram of the position of the telescopic rod of the present invention.

[0032] Among them, 1. Connecting frame; 2. Buffer frame; 3. Chassis; 4. Building pillar; 5. Abutment disc; 6. Hydraulic cylinder; 7. Abutment head; 8. Transmission head; 9. Telescopic sleeve; 10. Correction head; 11. Abutment head; 12. Reset head; 13. Spring damping shaft 1; 14. Slide rail; 15. Slide seat; 16. Connecting rod; 17. Slide; 18. Shell; 19. Magnetic plate 1; 20. Magnetic plate 2; 21. Sliding head; 22. Threaded disk; 23. Fixed frame; 24. Telescopic rod; 25. Fixing hole; 26. Spring damping shaft 2. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0034] An embodiment of the present invention provides an adjustable shock-absorbing base for an assembled building, comprising:

[0035] Please see the attached Figure 1 , Attachment Figure 6 and attached Figure 7, connecting frame 1, the connecting frame 1 is connected to the building pillar 4 of the prefabricated building through an adjustable fixing frame to adapt to the installation of building pillars 4 of different specifications, the adjustable fixing frame includes a threaded disk 22 rotatably connected to the inside of the connecting frame 1 and four fixing frames 23 slidably connected to the top side of the connecting frame 1, the top side of the threaded disk 22 is provided with a thread, the bottom side of the fixing frame 23 is slidably connected to the inside of the thread, the fixing frame 23 and the building pillar 4 are fixed by stud nuts, the center of the threaded disk 22 is provided with a force groove for applying force to rotate the threaded disk 22, and the top side of the connecting frame 1 is provided with a through hole that exposes the force groove to the outside;

[0036] Specifically, when connecting the building pillars 4 of the prefabricated building, first, force is applied to it by twisting the force application groove, thereby rotating the threaded disk 22, and synchronously rotating the thread opened on the threaded disk 22. The bottom side of the fixing frame 23 is gradually subjected to the thread force along the rotation of the thread, and then displaced. According to the counterclockwise and clockwise directions of the thread rotation, the multiple fixing frames 23 are determined to move together or disperse, until the spacing between the multiple fixing frames 23 is suitable for the insertion of the building pillar 4. After the insertion is completed, the building pillar 4 and the fixing frame 23 are fixed by the stud nuts.

[0037] Please see the attached Figure 2 -Attached Figure 4 , the buffer frame 2 is located at the bottom side of the connecting frame 1, and a chassis 3 is provided on the bottom side of the buffer frame 2. A plurality of primary buffer heads are installed on the top side of the buffer frame 2, which are used to provide timely feedback through the abutment disc 5 fixed on the bottom side of the connecting frame 1 when the connecting frame 1 vibrates, so as to reduce the force generated by the vibration. The primary buffer head will immediately transmit the force to the secondary buffer head after being subjected to the force, so as to further reduce the force generated by the vibration. The secondary buffer head is installed inside the chassis 3, and after the vibration is eliminated, the chassis 3 slows down the reset speed of the primary buffer head and the secondary buffer head by stabilizing the reset head to avoid secondary vibration caused by resetting too quickly;

[0038] Please see the attached Figure 2 -Attached Figure 4 The first-level buffer head includes a hydraulic cylinder 6 fixedly connected to the top side of the buffer frame 2. The top side of the hydraulic cylinder 6 is provided with two openings 1, and the bottom side of the hydraulic cylinder 6 is provided with an opening 2. A correction head 10 is slidably connected to the inside of one of the openings 1, and an abutment head 7 is slidably connected to the inside of the other opening 1. The inside of the opening 2 is slidably connected to the transmission head 8 through a spring. The interior of the hydraulic cylinder 6 is filled with hydraulic oil, and the top of the abutment head 7 abuts against the bottom side of the abutment disc 5. The correction head 10 is located on the outer periphery of the bottom side of the connecting frame 1. The hydraulic cylinder 6 is equidistantly surrounded by the bottom side of the connecting frame 1 to accurately reduce the force in a specific direction. A telescopic sleeve 9 is provided on the side close to the transmission head 8 and the opening 2 to protect the spring.

[0039] Specifically, when the building pillar 4 is subjected to force, the abutment disc 5 on the bottom side of the connecting frame 1 connected to the building pillar 4 will deviate and vibrate to a certain extent, and force will be applied to the abutment head 7 in the direction of the force, so that the abutment head 7 will be displaced inside the hydraulic cylinder 6. The abutment head 7 under force pushes the hydraulic oil inside the hydraulic cylinder 6 to push the transmission head 8 and the correction head 10. The pushed transmission head 8 pushes the abutment head 11 at the bottom end to displace, and the displaced correction head 10 will rise, so that the correction head 10 can apply force to the outer peripheral edge of the bottom side of the connecting frame 1, thereby avoiding further shaking caused by vibration, which will cause the connecting frame 1 and the structure connected to the top side of the connecting frame 1 to further deviate in angle.

[0040] Please see the attached Figure 4 and attached Figure 5 The secondary buffer head includes a contact head 11 fixedly connected to the bottom side of the transmission head 8 and a slide 15 fixedly connected to the outer periphery of the bottom side of the inner wall of the chassis 3. One end of the slide 15 is slidably connected to the slide 17. The top side of the slide 17 is connected to the contact head 11 through a connecting rod 16. One end of the connecting rod 16 is rotatably connected to the top side of one end of the slide 17. The other end of the connecting rod 16 is rotatably connected to the bottom side of the contact head 11. The other end of the slide 17 is sleeved with a shell 18. The bottom side of the shell 18 is fixedly connected to the bottom side of the inner wall of the chassis 3. The shell The inner wall of 18 is fixedly connected to a second magnetic piece 20, and one side of the slide 17 is fixedly connected to a first magnetic piece 19. Both the first magnetic piece 19 and the second magnetic piece 20 are made of magnets, and the adjacent sides of the first magnetic piece 19 and the second magnetic piece 20 repel each other with the same magnets. The other end of the slide 15 is fixedly connected to the slide rail 14 on both sides, and the one end of the contact head 11 is fixedly connected to the sliding head 21 on both sides. The sliding head 21 is slidably connected inside the slide rail 14 to fix the displacement trajectory of the contact head 11 connected to the sliding head 21 to prevent deviation.

[0041] Specifically, when the contact head 11 moves obliquely downward, it will push the slide 17 to slide on the slide 15 through the connecting rod 16, and then push the magnetic piece 19 connected to it to slide inside the shell 18, and gradually enter the repulsive force range of the magnetic piece 20, and be affected by the magnetic repulsion of the magnetic piece 20 to achieve force dispersion and elimination. Among them, the shell 18 is made of a material that does not react with magnets, so as to avoid causing the magnetic piece 19 to be unable to move.

[0042] Please see the attached Figure 4 The stable reset head includes a reset head 12, the side of the reset head 12 away from the contact head 11 is connected to the inner middle end of the chassis 3 through a spring damping shaft 13, and the sides of the reset head 12 and the contact head 11 are both provided with inclined surfaces, and the two inclined surfaces abut against each other;

[0043] Specifically, after the pushed transmission head 8 pushes the contact head 11 at the bottom to displace, the reset head 12 abutted by the inclined surface on the contact head 11 loses the abutment of the contact head 11 and is gradually reset under the reset push of the compressed spring damping shaft 13. After the vibration disappears, the abutment disc 5 no longer applies force to the previously displaced abutment head 7, and the contact head 11 is lifted and reset, and a force is applied to the reset head 12 through the inclined surface, and the spring damping shaft 13 is compressed, so that the contact head 11 is slowly reset to avoid the occurrence of secondary vibration caused by resetting too quickly.

[0044] Please see the attached Figure 2 and attached Figure 8 The middle end of the top side of the chassis 3 is connected to the bottom center of the abutting disc 5 through the spring damping shaft 26. The four corners of the inner wall of the buffer frame 2 and the chassis 3 are connected through the telescopic rod 24. The spring damping shaft 26 is used to disperse and consume the initial force to reduce the impact of vibration. The telescopic rod 24 is used to maintain the stability of the connection between the buffer frame 2 and the chassis 3.

[0045] Please see the attached Figure 1 The four corners of the bottom end of the chassis 3 are provided with fixing holes 25 for auxiliary shock-absorbing base installation and fixing on the ground. The steel bars extending from the foundation can be inserted into the fixing holes 25 and fixed measures can be taken to fix the chassis 3.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable shock-absorbing base for an assembled building, characterized in that: include: A connecting frame (1), wherein the connecting frame (1) is connected to a building pillar (4) of an assembled building by adjusting a fixing frame to adapt to installation of building pillars (4) of different specifications; A buffer frame (2) is located on the bottom side of the connecting frame (1), a chassis (3) is provided on the bottom side of the buffer frame (2), and a plurality of first-level buffer heads are installed on the top side of the buffer frame (2) for timely feedback through the abutment disc (5) fixed on the bottom side of the connecting frame (1) when the connecting frame (1) generates vibration, thereby reducing the force generated by the vibration. The first-level buffer head will immediately transmit the force to the second-level buffer head after receiving the force, so as to further reduce the force generated by the vibration. The second-level buffer head is installed inside the chassis (3), and after the vibration is eliminated, the chassis (3) slows down the reset speed of the first-level buffer head and the second-level buffer head through the stable reset head, so as to avoid secondary vibration caused by excessive reset. The top middle end of the chassis (3) is connected to the bottom center of the abutting disc (5) via a second spring damping shaft (26), and the four corners of the inner wall of the buffer frame (2) and the chassis (3) are connected via telescopic rods (24); The first-level buffer head includes a hydraulic cylinder (6) fixedly connected to the top side of the buffer frame (2), the top side of the hydraulic cylinder (6) is provided with two openings 1, the bottom side of the hydraulic cylinder (6) is provided with an opening 2, one of the openings 1 is slidably connected to a correction head (10), the other opening 1 is slidably connected to an abutment head (7), the inside of the opening 2 is slidably connected to a transmission head (8) via a spring, the inside of the hydraulic cylinder (6) is filled with hydraulic oil, the top of the abutment head (7) is in abutment with the bottom side of the abutment disc (5), the correction head (10) is located on the outer periphery of the bottom side of the connecting frame (1), and the hydraulic cylinder (6) is equidistantly surrounded on the bottom side of the connecting frame (1) to accurately reduce the force in a specific direction; The secondary buffer head comprises a contact head (11) fixedly connected to the bottom side of the transmission head (8) and a slide seat (15) fixedly connected to the outer periphery of the bottom side of the inner wall of the chassis (3), one end of the slide seat (15) is slidably connected to a slide frame (17), the top side of the slide frame (17) is connected to the contact head (11) through a connecting rod (16), one end of the connecting rod (16) is rotatably connected to the top side of one end of the slide frame (17), and the other end of the connecting rod (16) is rotatably connected to the contact head (11). ) is rotatably connected to the bottom side of the chassis (3), the other end of the slide (17) is sleeved with a shell (18), the bottom side of the shell (18) is fixedly connected to the bottom side of the inner wall of the chassis (3), the inner wall of the shell (18) is fixedly connected to the magnetic piece 2 (20), and one side of the slide (17) is fixedly connected to the magnetic piece 1 (19), the magnetic piece 1 (19) and the magnetic piece 2 (20) are both made of magnets, and the adjacent sides of the magnetic piece 1 (19) and the magnetic piece 2 (20) repel each other with the same polarity; The stable reset head comprises a reset head (12), wherein the side of the reset head (12) away from the contact head (11) is connected to the inner middle end of the chassis (3) via a spring damping shaft (13). The reset head (12) and the contact head (11) are both provided with inclined surfaces on their adjacent sides, and the two inclined surfaces abut against each other.

2. The adjustable shock-absorbing base of an assembled building according to claim 1, characterized in that: A telescopic sleeve (9) is provided on the side of the transmission head (8) adjacent to the second opening to protect the spring.

3. The adjustable shock-absorbing base of an assembled building according to claim 1, characterized in that: The other end of the slide seat (15) is fixedly connected to the slide rail (14) on both sides, and one end of the contact head (11) is fixedly connected to the sliding head (21) on both sides, and the sliding head (21) is slidably connected inside the slide rail (14).

4. The adjustable shock-absorbing base of an assembled building according to claim 1, characterized in that: The adjustable fixing frame comprises a threaded disc (22) rotatably connected to the interior of the connecting frame (1) and four fixing frames (23) slidably connected to the top side of the connecting frame (1). The top side of the threaded disc (22) is provided with a thread, and the bottom side of the fixing frame (23) is slidably connected to the interior of the thread. The fixing frame (23) is fixed to the building pillar (4) via stud nuts.

5. The adjustable shock-absorbing base of an assembled building according to claim 4, characterized in that: A force application groove is provided at the center of the threaded disc (22) for facilitating application of force to rotate the threaded disc (22).

6. The adjustable shock-absorbing base of an assembled building according to claim 1, characterized in that: The four corners of the bottom end of the chassis (3) are provided with fixing holes (25) for assisting the shock-absorbing base in being installed and fixed on the ground.

Citation Information

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