Fabricated building supporting seat for constructional engineering

Abstract

The invention discloses a fabricated building supporting seat for constructional engineering, and relates to the technical field of constructional engineering. The device comprises a lower support, a supporting column is arranged in the lower support, a spherical groove is formed in the top of the supporting column, a spherical plate is rotatably mounted in the spherical groove, an upper support is mounted at the top of the supporting column, and main spring steel plates are fixedly mounted on the periphery of the supporting column; the end, close to the interior of the lower support, of the strength adjusting bolt is provided with a limiting part and an anti-disengaging part. The auxiliary spring steel plates are arranged at the four corners of the lower support, the main spring steel plates abut against the auxiliary spring steel plates, the double-damping design is adopted, the auxiliary spring steel plates can provide additional elastic support, when the main spring steel plates are subjected to large external force or vibration, the abutting effect of the auxiliary spring steel plates can effectively share part of stress, and the damping effect is good. And the shock resistance of the support is improved, so that the influence of vibration transmitted to the structure is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and specifically to a prefabricated building support for building engineering. Background Technology

[0002] When a building's supports are subjected to impact loads, damping spherical (hinge) bearings can flexibly mitigate the impact force and reduce displacement acceleration through multi-plate spring dampers, thus protecting both the bearings themselves and the main steel structure. Secondly, stainless steel plates and PTFE sliding plates are installed between the relative displacement surfaces, allowing displacement to be achieved through relative sliding. This significantly reduces the coefficient of friction, making the movement between components more flexible and preventing creeping phenomena.

[0003] Currently, most dampers used in shock-absorbing spherical (hinge) bearings on the market employ multi-leaf spring dampers. A shock-absorbing spherical (hinge) bearing consists of an upper support plate, a lower support plate, a spherical plate, a polytetrafluoroethylene (PTFE) sliding plate (F4, spherical PTFE plate), and a leaf spring damper. A shock-absorbing spherical (hinge) bearing is essentially a regular spherical (hinge) bearing with the addition of a multi-leaf spring damper. Chinese patent (publication number: CN109610645B) discloses a steel structure spherical hinge bearing, including a lower support, a support block placed within the lower support, and an upper support mounted on the support block. A liner groove is formed on the surface of the support block facing the upper support. A spherical PTFE sliding plate, a spherical crown liner, and a flat PTFE sliding plate are sequentially placed in the liner groove. The spherical PTFE sliding plate is located between the support block and the spherical crown liner, and the flat PTFE sliding plate is located between the spherical crown liner and the upper support. It also includes a shock-absorbing assembly, which includes at least three sets of leaf springs fixed to the side wall of the support block and distributed around the support block. The two ends of the leaf springs are bent toward the side opposite to the support block. The length of the leaf springs in the same set decreases as they gradually approach the support block, and the two ends of each set of leaf springs are pressed against the inner wall of the lower support.

[0004] The patent and existing technologies have the following technical problems in practical use: 1. Using only leaf springs as damping components results in a relatively simple seismic effect. The role of leaf springs in damping is mainly to absorb external forces through their elasticity, but their damping effect is usually limited by their stiffness and elastic range. When the external force or vibration intensity is large, a single leaf spring may not be able to effectively absorb and disperse energy, leading to an unsatisfactory damping effect.

[0005] 2. At the same time, during the assembly process, it is necessary to precisely control the curvature and length of the leaf springs around the perimeter in order to achieve accurate shock absorption by the leaf springs around the perimeter. The assembly is difficult and the requirements for the leaf spring process are high. Summary of the Invention

[0006] The purpose of this invention is to provide a prefabricated building support for construction projects in order to solve the above problems.

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution: A prefabricated building support for a construction project includes a lower support, a support column inside the lower support, a spherical groove at the top of the support column, a spherical plate rotatably installed inside the spherical groove, an upper support at the top of the support column, and main spring steel plates fixedly installed around the support column. The lower support is slidably connected to the four corners of the support plate. The strength adjustment nut is welded inside the support plate. The strength adjustment nut is threadedly connected to the strength adjustment bolt. The end of the strength adjustment bolt near the inside of the lower support is provided with a limit part and an anti-disengagement part. The limit part is a cylindrical rod with flattened sides. It also includes a secondary spring steel plate, which has a through hole inside. The limiting part passes through the through hole, the outer diameter of the anti-detachment part is larger than the inner diameter of the through hole, the outer diameter of the cylindrical surface of the limiting part is the same as the inner diameter of the through hole, the secondary spring steel plate is arc-shaped, and both ends rest on the auxiliary plate.

[0008] Furthermore, a spherical polytetrafluoroethylene sliding plate is provided between the spherical plate and the spherical groove, and a circular polytetrafluoroethylene sliding plate is provided between the spherical plate and the upper support.

[0009] Furthermore, the lower support has an anti-pull-out cavity at its inner bottom, and the support column has an anti-pull-out base plate at its bottom. The anti-pull-out base plate is inserted into the anti-pull-out cavity, and a square polytetrafluoroethylene sliding plate is provided between the bottom of the anti-pull-out base plate and the bottom of the anti-pull-out cavity.

[0010] Furthermore, connecting blocks are provided around the top of the support column, and a connecting sleeve is provided at the bottom of the upper support. The bottom of the connecting sleeve has four sets of insertion slots, through which the connecting blocks can pass.

[0011] Furthermore, threaded holes and guide holes are provided through the four corners of the lower support. Mounting bolts are rotatably installed on the outer side of the auxiliary plate, and the mounting bolts are threaded into the threaded holes. Guide posts are fixedly installed on the outer side of the auxiliary plate, and the guide posts pass through the guide holes.

[0012] Furthermore, the lower support has chamfered corners at both the outer and inner corners.

[0013] Furthermore, an operating gap is provided between the auxiliary plate and the inner corner of the lower support.

[0014] Furthermore, the main spring steel plate is composed of six spring steel plates, and the secondary spring steel plate is composed of three spring steel plates. Both the main spring steel plate and the secondary spring steel plate have a stepped design.

[0015] Furthermore, the length of the secondary spring steel plate is one-third of the length of the primary spring steel plate.

[0016] Furthermore, the main spring steel plate is fixedly installed on the support column by connecting bolts.

[0017] The beneficial effects of this invention are as follows: 1. The present invention uses auxiliary spring steel plates at the four corners of the lower support, so that the main spring steel plate touches the auxiliary spring steel plate. The dual damping design allows the auxiliary spring steel plates to provide additional elastic support. When the main spring steel plate is subjected to large external forces or vibrations, the contact action of the auxiliary spring steel plates can effectively share some of the stress, improve the seismic resistance of the support, and thus effectively reduce the impact of vibration transmitted to the structure.

[0018] 2. The present invention adopts an adjustable position of the secondary spring steel plate, which can eliminate the errors caused by the main steel plate spring process, reduce the production difficulty, and improve the assembly efficiency.

[0019] 3. The present invention, through the design of strength adjusting bolts and strength adjusting nuts, can change the initial elastic force of the secondary spring steel plate, and the elastic combination can be adjusted according to the usage environment, thereby improving the applicability of the device.

[0020] 4. By designing a limiting part, the present invention can finely adjust the tilt angle of the limiting part, thereby changing the distance between the main spring steel plate and the limiting part. This can limit and control the deformation of the main spring steel plate, further change the elastic combination of the device, and prevent excessive deformation of the main spring steel plate from affecting its service life. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This invention is an explosion Figure 1 ; Figure 4 This invention is an explosion Figure 2 ; Figure 5 This is a schematic diagram of the auxiliary plate and secondary spring steel plate structure of the present invention.

[0022] Reference numerals: 1. Lower support; 11. Pull-out cavity; 12. Threaded hole; 13. Guide hole; 2. Support column; 21. Connecting block; 22. Pull-out base plate; 23. Square PTFE sliding plate; 3. Upper support; 31. Connecting sleeve; 4. Spherical plate; 41. Spherical PTFE sliding plate; 42. Circular PTFE sliding plate; 5. Main spring steel plate; 51. Connecting bolt; 6. Auxiliary plate; 61. Mounting bolt; 62. Guide column; 63. Strength adjusting nut; 64. Strength adjusting bolt; 65. Limiting part; 66. Anti-detachment part; 7. Secondary spring steel plate; 71. Through hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] Example 1, as Figures 1-5 As shown, a prefabricated building support for a building project includes a lower support 1, a support column 2 is provided inside the lower support 1, a spherical groove is provided at the top of the support column 2, a spherical plate 4 is rotatably installed inside the spherical groove, an upper support 3 is installed at the top of the support column 2, and main spring steel plates 5 are fixedly installed around the support column 2. Auxiliary plates 6 are slidably connected to the four corners of the lower support 1. A strength adjusting nut 63 is welded inside the auxiliary plate 6. A strength adjusting bolt 64 is threaded inside the strength adjusting nut 63. A limit part 65 and an anti-disengagement part 66 are provided at one end of the strength adjusting bolt 64 near the inside of the lower support 1. The limit part 65 is a cylindrical rod with flattened sides. It also includes a secondary spring steel plate 7, which has a through hole 71 inside. A limiting part 65 passes through the through hole 71. The outer diameter of the anti-detachment part 66 is larger than the inner diameter of the through hole 71. The outer diameter of the cylindrical surface of the limiting part 65 is the same as the inner diameter of the through hole 71. The secondary spring steel plate 7 has an arc-shaped design and its two ends rest on the auxiliary plate 6.

[0025] Furthermore, the main spring steel plate 5 is fixedly installed on the support column 2 by connecting bolts 51.

[0026] Assembly: Install the main spring steel plate 5 around the support column 2, and then install the support column 2 in the lower support 1. The above is the existing installation procedure. The two ends of the main spring steel plate 5 are prone to gaps with the inner wall of the lower support 1. Then control the movement of the auxiliary plate 6. The auxiliary plate 6 drives the anti-detachment part 66 to be inserted between the two adjacent sets of main spring steel plates 5, and makes the secondary spring steel plate 7 press against the end face of the two adjacent sets of main spring steel plates 5. This can eliminate the installation gap, eliminate the error caused by the main steel plate spring process, reduce the production difficulty, and improve the assembly efficiency.

[0027] The damping strength can also be adjusted according to the usage environment. Using a wrench to rotate the strength adjustment bolt 64 causes the anti-detachment part 66 to press against the secondary spring steel plate 7, thus changing the initial damping strength of the secondary spring steel plate 7. After adjustment, fine-tune the strength adjustment bolt 64 to change the tilt angle of the limiting part 65. Then, move the auxiliary plate 6 again so that the main spring steel plate 5 rests against the arc-shaped surface of the secondary spring steel plate 7. Since the limiting part 65 is a cylindrical rod with flattened sides, the distance between the main spring steel plate 5 and the plane is greatest when the plane is vertical. As the limiting part 65 tilts, the distance will shorten. Therefore, when the support column 2 is lowered during use... When support 1 is displaced, the main spring steel plate 5 presses against the secondary spring steel plate 7. The contact action of the secondary spring steel plate 7 can effectively share some of the stress, improve the seismic resistance of the support, and thus effectively reduce the impact of vibration transmitted to the structure. Both the main spring steel plate 5 and the secondary spring steel plate 7 evolve from arc to straight line. Therefore, the end face of the main spring steel plate 5 will have displacement at both ends, making it obliquely close to the limiting part 65, with sufficient damping distance. When the displacement is too large, when the end face of the main spring steel plate 5 presses against the limiting part 65, it will not continue to deform. This design can not only change the overall damping effect of the device, but also prevent the main spring steel plate 5 from excessive deformation and improve the service life of the main spring steel plate 5.

[0028] Example 2, based on the above examples, further includes a spherical polytetrafluoroethylene sliding plate 41 disposed between the spherical plate 4 and the spherical groove, and a circular polytetrafluoroethylene sliding plate 42 disposed between the spherical plate 4 and the upper support 3.

[0029] By fully utilizing the excellent properties of polytetrafluoroethylene, such as friction resistance, high temperature resistance, corrosion resistance, and wear resistance, the support system can work more efficiently and stably, exert its shock absorption and anti-vibration effects, while reducing maintenance costs and extending service life.

[0030] In embodiment three, based on the above embodiments, the lower support 1 has an anti-pull-out cavity 11 at its inner bottom, the support column 2 has an anti-pull-out base plate 22 at its bottom, the anti-pull-out base plate 22 is inserted into the anti-pull-out cavity 11, and a square polytetrafluoroethylene sliding plate 23 is provided between the bottom of the anti-pull-out base plate 22 and the inner bottom of the anti-pull-out cavity 11.

[0031] By setting up the anti-pull-out base plate 22 and the anti-pull-out cavity 11, the vertical jump distance of the support column 2 can be limited, thereby improving the stability of the support.

[0032] Example 4, based on the above examples, also includes connecting blocks 21 on all four sides of the top of the support column 2, and connecting sleeves 31 at the bottom of the upper support 3. The bottom of the connecting sleeves 31 has four sets of insertion slots, through which the connecting blocks 21 can pass.

[0033] With this design, the connecting block 21 is aligned with the insertion slot, then the upper support 3 is pressed onto the spherical plate 4, and then the upper support 3 is rotated to make the connecting block 21 misaligned with the insertion slot, which is convenient for installation.

[0034] Example 5, based on the above examples, further includes threaded holes 12 and guide holes 13 through each of the four corners of the lower support 1, mounting bolts 61 are rotatably installed on the outer side of the auxiliary plate 6, the mounting bolts 61 are threaded into the threaded holes 12, and guide posts 62 are fixedly installed on the outer side of the auxiliary plate 6, the guide posts 62 passing through the guide holes 13.

[0035] Furthermore, chamfers are provided at both the outer and inner corners of the lower support 1.

[0036] Furthermore, an operating gap is provided between the auxiliary plate 6 and the inner corner of the lower support 1.

[0037] By rotating the mounting bolt 61, the mounting bolt 61 moves the auxiliary plate 6 under the action of the threaded hole 12, which is easy to control. After the adjustment is completed, the mounting bolt 61 and the guide post 62 are welded to the lower support 1, and the strength adjustment bolt 64 is welded to the strength adjustment nut 63 to prevent the auxiliary plate 6 from shifting and the secondary spring steel plate 7 from deforming during subsequent use.

[0038] Example 6, based on the above examples, further includes a main spring steel plate 5 composed of six spring steel plates and a secondary spring steel plate 7 composed of three spring steel plates, with both the main spring steel plate 5 and the secondary spring steel plate 7 having a stepped design.

[0039] Furthermore, the length of the secondary spring steel plate 7 is one-third of the length of the main spring steel plate 5.

[0040] Reasonable stress distribution: The length and number of auxiliary spring steel plates 7 are relatively small, so their role in the damping process is mainly auxiliary rather than dominant. Since the length is one-third of that of the main spring steel plate 5, it can effectively share part of the stress of the main spring steel plate 5, avoiding excessive stress on the main spring steel plate 5. The fact that the number is one-third can also distribute the stress evenly when necessary, so as not to concentrate it too much.

[0041] Avoid excessive constraints: The design uses fewer secondary spring plates 7 and shorter lengths, which will not excessively interfere with the working state of the main spring plate 5. This avoids the secondary spring plates 7 from participating excessively in the deformation process of the support, thus allowing the main spring plate 5 to fully exert its damping effect.

[0042] Improving system flexibility: The shorter length and number of secondary spring plates 7 help maintain the system's flexibility under vibration or external force. The main spring plate 5 can still deform flexibly under the action of the secondary spring plates 7 without being restricted or rigidly controlled. This design enhances the support's adaptability to different vibration frequencies and amplitudes.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A prefabricated building support for construction projects, comprising a lower support (1), characterized in that, The lower support (1) is provided with a support column (2) inside. The top of the support column (2) is provided with a spherical groove. A spherical plate (4) is rotatably installed inside the spherical groove. The top of the support column (2) is provided with an upper support (3). The main spring steel plate (5) is fixedly installed around the support column (2). The lower support (1) is slidably connected to the four corners of the auxiliary plate (6). The auxiliary plate (6) is welded with a strength adjusting nut (63). The strength adjusting nut (63) is threaded with a strength adjusting bolt (64). The end of the strength adjusting bolt (64) near the interior of the lower support (1) is provided with a limiting part (65) and an anti-detachment part (66). The limiting part (65) is a cylindrical rod with flattened sides. It also includes a secondary spring steel plate (7), which has a through hole (71) inside. A limiting part (65) passes through the through hole (71). The outer diameter of the anti-detachment part (66) is larger than the inner diameter of the through hole (71). The outer diameter of the cylindrical surface of the limiting part (65) is the same as the inner diameter of the through hole (71). The secondary spring steel plate (7) is arc-shaped and its two ends rest on the auxiliary plate (6).

2. The prefabricated building support base for a building project according to claim 1, characterized in that, A spherical polytetrafluoroethylene sliding plate (41) is provided between the spherical plate (4) and the spherical groove, and a circular polytetrafluoroethylene sliding plate (42) is provided between the spherical plate (4) and the upper support (3).

3. The prefabricated building support base for a building project according to claim 2, characterized in that, The lower support (1) has an anti-pull-out cavity (11) at its inner bottom. The support column (2) has an anti-pull-out base plate (22) at its bottom. The anti-pull-out base plate (22) is inserted into the anti-pull-out cavity (11). A square polytetrafluoroethylene sliding plate (23) is provided between the bottom of the anti-pull-out base plate (22) and the bottom of the anti-pull-out cavity (11).

4. The prefabricated building support base for a building project according to claim 3, characterized in that, Connecting blocks (21) are provided around the top of the support column (2), and connecting sleeves (31) are provided at the bottom of the upper support (3). Four sets of insertion slots are provided at the bottom of the connecting sleeves (31), and the connecting blocks (21) can pass through the insertion slots.

5. A prefabricated building support for a building project according to claim 4, characterized in that, The lower support (1) has threaded holes (12) and guide holes (13) through each of its four corners. The auxiliary plate (6) is rotatably mounted with mounting bolts (61), which are threaded into the threaded holes (12). The auxiliary plate (6) is fixedly mounted with guide posts (62), which pass through the guide holes (13).

6. A prefabricated building support for a building project according to claim 5, characterized in that, The lower support (1) has chamfers at both its outer and inner corners.

7. A prefabricated building support for a building project according to claim 6, characterized in that, An operating gap is provided between the inner corner of the auxiliary plate (6) and the lower support (1).

8. A prefabricated building support for a building project according to any one of claims 1-7, characterized in that, The main spring steel plate (5) is composed of six spring steel plates, and the secondary spring steel plate (7) is composed of three spring steel plates. Both the main spring steel plate (5) and the secondary spring steel plate (7) are designed in a stepped manner.

9. A prefabricated building support for a building project according to claim 8, characterized in that, The length of the secondary spring steel plate (7) is one-third of the length of the main spring steel plate (5).

10. A prefabricated building support for a building project according to claim 9, characterized in that, The main spring steel plate (5) is fixedly installed on the support column (2) by connecting bolts (51).

Images