A device for adjusting the elevation of precast concrete beams and columns

Abstract

This application discloses a precast concrete beam and column elevation adjustment device, relating to the technical field of building construction. It includes a base, a support platform, and an adjustment assembly. The base has an internal cavity. A through hole is formed at the bottom of the base. The support platform is disposed within the cavity and is movable relative to the base. A threaded rod is located at the bottom of the support platform. The adjustment assembly includes an adjustment wheel and an adjustment rod. The adjustment wheel is rotatably disposed at the bottom of the base, and is threadedly engaged with the threaded rod. The adjustment rod is rotatably disposed at the bottom of the base, located outside the adjustment wheel, and threadedly engaged with it. Rotation of the adjustment rod drives the adjustment wheel to rotate, and rotation of the adjustment wheel drives the support platform to move. This application facilitates the achievement of the expected height for precast beams and columns during construction, while effectively improving the safety and stability of the overall structure.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and in particular to a device for adjusting the elevation of precast concrete beams and columns. Background Technology

[0002] Currently, in the construction industry, strict standards govern the installation of precast concrete components (such as precast beams and columns) to ensure the overall quality and safety of buildings. The precise installation of precast beams and columns is particularly crucial in the construction of high-rise buildings and bridges.

[0003] In traditional construction of precast beams and columns, the final height of the precast beams and columns after installation is estimated in advance during the hoisting process. After measuring the dimensions of the precast beams and columns, pads of different thicknesses are placed at the bottom of the precast beams and columns so that the precast beams and columns can reach the expected height after being placed on the pads.

[0004] Although traditional construction methods are simple and easy to implement, due to the complex and varied conditions at the construction site, it is difficult to achieve precise height positioning in the actual installation of precast beams and columns using traditional methods. Adjustments are often required later, which not only increases the difficulty of construction and prolongs the construction period, but may also affect the safety and stability of the overall structure. Summary of the Invention

[0005] This application provides a precast concrete beam and column elevation adjustment device, which can facilitate the precast beams and columns to reach the expected height during construction, and can effectively improve the safety and stability of the overall structure.

[0006] This application provides a device for adjusting the elevation of precast concrete beams and columns, employing the following technical solution:

[0007] A precast concrete beam and column elevation adjustment device includes a base, a support platform, and an adjustment assembly;

[0008] The base has an internal cavity, and the cavity forms an opening at the top of the base; the bottom of the base has a through hole, and the through hole communicates with the cavity;

[0009] The support platform is disposed in the cavity, forming a seal in the cavity, and is movable relative to the base in the vertical direction; the bottom of the support platform has a threaded rod that can penetrate into the interior of the base body below the base, and the threaded rod is kept passing through the through hole;

[0010] The adjustment assembly includes an adjustment wheel and an adjustment rod; the adjustment wheel is rotatably disposed at the bottom of the base, the rotation axis of the adjustment wheel is vertical, and the adjustment wheel is sleeved and threadedly engaged with the threaded rod; the adjustment rod is rotatably disposed at the bottom of the base, the rotation axis of the adjustment rod is perpendicular to the rotation axis of the adjustment wheel, the adjustment rod is located outside the adjustment wheel and is threadedly engaged with the adjustment wheel; the rotation of the adjustment rod can drive the adjustment wheel to rotate, and the rotation of the adjustment wheel can drive the support platform to move.

[0011] By adopting the above technical solution, inserting the threaded rod into the base allows construction personnel to easily determine the installation position of the precast beams and columns. After the precast beams and columns are placed on the support platform, the height of the precast beams and columns can be adjusted by controlling the movement of the support platform through the adjustment components. This makes it easier for the precast beams and columns to reach the expected height during construction. At the same time, it makes it easier for construction personnel to reinforce the structure between the precast beams and columns and the base, thereby effectively improving the safety and stability of the overall structure.

[0012] Optionally, it may also include a locking component, wherein the locking component is disposed on the support platform;

[0013] The locking assembly includes several locking components and several control components; the locking components are movably disposed on the top of the support platform and can move horizontally, and the several locking components can enclose to form a positioning space for locking the bottom of the precast beam and column; the control components are rotatably connected to the support platform and the axis of rotation is horizontal; the several control components can control the movement of the several locking components, and the periphery of the base is provided with several clearance openings for the several control components to be exposed.

[0014] By adopting the above technical solution, the positional stability of precast beams and columns after they are placed on the support platform can be improved, and the horizontal position of the precast beams and columns placed on the support platform can be adjusted by construction personnel.

[0015] Optionally, the locking assembly includes four locking components and two control components, and the base has two corresponding clearance openings.

[0016] The control component corresponds to the two locking components. The two corresponding locking components are symmetrically distributed and their movement directions are parallel to each other, while the movement directions of the two non-corresponding locking components are perpendicular to each other. The rotation axis of the control component is parallel to the movement direction of the corresponding locking component. The control component is threadedly engaged with the two corresponding locking components, and the thread engagement directions are opposite.

[0017] By adopting the above technical solution, it is more convenient for construction workers to adjust and lock the position of precast beams and columns on the support platform, and it is also convenient to place the precast beams and columns in the center on the support platform.

[0018] Optionally, during the movement of the support platform relative to the base, the cavity can communicate with the outside through the two clearance openings.

[0019] By adopting the above technical solution, it is possible to conveniently reinforce the structure between precast beams and columns and the base. During the process, concrete fills the cavity through the clearance opening, thereby effectively improving the structural strength of the precast beams and columns after reinforcement.

[0020] Optionally, the bottom of the precast beam and column has several outwardly extending embedded parts, and the support platform has several positioning holes for inserting the embedded parts. The positioning holes are all connected to the positioning space, and the embedded parts can pass through the positioning holes into the cavity.

[0021] By adopting the above technical solution, it is possible to facilitate the initial positioning and placement of precast beams and columns on the support platform, and at the same time, it can further improve the reinforcement effect of concrete filling the cavity on the structure between the precast beams and columns and the base.

[0022] Optionally, the threaded rod has a plurality of first through holes inside, and the first through holes penetrate both ends of the threaded rod along its length to form an opening.

[0023] By adopting the above technical solution, after the concrete fills the cavity, the concrete can enter the interior of the matrix through the first through hole, thereby further improving the reinforcement effect of the structure between the precast beams and columns and the matrix.

[0024] Optionally, four positioning rods are also included;

[0025] The positioning rod is disposed on the base, part of which is located below the base and can penetrate the base vertically; the four positioning rods are arranged in a circular array with the axis of the through hole as the axis.

[0026] By adopting the above technical solution, the accuracy of the base's positioning on the substrate can be further improved, and the positional stability of the base relative to the substrate can also be further improved.

[0027] Optionally, the positioning rod is located in the cavity, and the end of the positioning rod near the cavity has a snap-fit ​​part; the positioning rod can move vertically relative to the base and can rotate about its own vertical axis. When the support platform moves downward to its limit position, the positioning rod can engage with the adjacent embedded part through the snap-fit ​​part, and the positioning rod after engagement can move with the support platform.

[0028] By adopting the above technical solution, after the positioning rod and the embedded part are engaged and the cavity is filled with concrete, the structural strength between the precast beam and column and the base can be further improved.

[0029] Optionally, it also includes four limiting members and four elastic members, and each of the four limiting members and four elastic members corresponds one-to-one with the four positioning rods;

[0030] The limiting member is disposed on one side corresponding to the snap-fit ​​portion, restricting the rotation of the positioning rod; the two ends of the elastic member are respectively connected to the base and the snap-fit ​​portion, and have the tendency to drive the positioning rod to rotate toward the corresponding limiting member;

[0031] When the support platform moves downward to its limit position, several of the embedded parts can contact the four limiting parts respectively and release the rotation restriction on the four positioning rods. The positioning rods rotate under the action of the corresponding elastic parts, so that the snap-fit ​​part snaps into the adjacent embedded part.

[0032] By adopting the above technical solution, the process of the positioning rod engaging with the embedded part can be made more convenient and faster, thereby effectively improving the reliability and stability of the engagement between the positioning rod and the embedded part.

[0033] Optionally, the positioning rod has a second through hole inside, which extends through both ends of the positioning rod along its length to form an opening.

[0034] By adopting the above technical solution, after the concrete fills the cavity, the concrete can enter the interior of the matrix through the second through hole, thereby further improving the reinforcement effect of the structure between the precast beams and columns and the matrix.

[0035] In summary, this application includes at least one of the following beneficial effects:

[0036] 1. It allows construction workers to easily adjust the height and position of precast beams and columns, ensuring they reach the desired height, reducing operational difficulty and shortening construction time;

[0037] 2. It can effectively improve the positional accuracy of precast beam and column construction, thereby effectively improving the construction quality of precast beam and column;

[0038] 3. It facilitates subsequent reinforcement of the structure at the bottom of precast beams and columns by construction personnel, thereby effectively improving the safety and stability of the overall structure;

[0039] 4. It allows construction workers to reinforce the structure at the bottom of precast beams and columns by pouring concrete, effectively improving the connection strength between the device and the base and precast beams and columns, thereby further improving the safety and stability of the overall structure. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of a precast concrete beam and column elevation adjustment device before the height of the precast beam and column is adjusted, according to an embodiment of this application.

[0041] Figure 2 This is a schematic diagram of the structure of a precast concrete beam and column elevation adjustment device according to an embodiment of this application, when adjusting the height of a precast beam and column;

[0042] Figure 3 This is a cross-sectional view of a precast concrete beam and column elevation adjustment device according to an embodiment of this application, when adjusting the height of the precast beam and column;

[0043] Figure 4 This is a cross-sectional view of a precast concrete beam and column elevation adjustment device according to an embodiment of this application before adjusting the height of the precast beam and column;

[0044] Figure 5 This is a schematic diagram of the internal structure of the base of a precast concrete beam and column elevation adjustment device before the precast beam and column are adjusted in height according to an embodiment of this application.

[0045] Figure 6 This is a structural schematic diagram of the precast beams and columns after construction is completed in the embodiments of this application.

[0046] Explanation of reference numerals in the attached drawings: 1. Base; 11. Cavity; 12. Perforation; 13. Clearance opening; 2. Support platform; 21. Threaded rod; 211. First through hole; 22. Positioning opening; 3. Adjustment assembly; 31. Adjustment wheel; 32. Adjustment rod; 4. Locking assembly; 41. Locking element; 42. Control element; 5. Positioning rod; 51. Snap-fit ​​part; 52. Second through hole; 6. Precast beam / column; 61. Embedded part; 7. Base; 8. Positioning space; 9. Limiting element; 10. Elastic element. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0048] Reference Figure 1 and Figure 2 This application discloses a precast concrete beam and column elevation adjustment device, which is used to adjust the height of the precast beam and column 6 during the construction process, so that the precast beam and column 6 can meet the expected height requirements after installation, and at the same time improve the structural strength of the bottom structure of the precast beam and column 6, thereby improving the safety and stability of the overall structure.

[0049] Reference Figure 1 and Figure 3The precast concrete beam and column elevation adjustment device includes a base 1, a support platform 2, an adjustment assembly 3, a locking assembly 4, and four positioning rods 5. The base 1 is used to determine the installation position of the device on the base 7, thereby facilitating the determination of the installation position of the precast beam and column 6 on the base 7. The support platform 2 supports the precast beam and column 6, allowing the device to connect with the precast beam and column 6. The adjustment assembly 3 is used to adjust the height of the precast beam and column 6. The locking assembly 4 is used to fix the precast beam and column 6 in position on the support platform 2. The positioning rods 5 facilitate the installation and positioning of the base 1 on the base 7, improving the positional accuracy of the base 1 on the base 7. In this embodiment, the precast beam and column 6 is preferably a cuboid structure with a square cross-section; and the base 7 is preferably a concrete structure with a horizontal top, facilitating drilling operations on the base 7.

[0050] The base 1 is a rectangular parallelepiped structure with a square cross-section. It has a cavity 11 inside and an opening is formed on one side of the cavity 11 along its height direction. The base 1 is installed and positioned on the base 7 with the opening of the cavity 11 facing vertically upward.

[0051] The support platform 2 has a square plate-shaped structure. The support platform 2 is installed in the cavity 11. Its side walls are respectively attached to the groove walls around the cavity 11 and can move relative to the base 1 in a direction parallel to the opening of the cavity 11.

[0052] Reference Figure 3 and Figure 4 The support platform 2 is restricted in its movement relative to the base 1 within the cavity 11. When the support platform 2 moves upward to its limit position, it remains within the cavity 11, and the top end face of the support platform 2 is flush with the top end face of the base 1. When the support platform 2 moves downward to its limit position, it maintains a certain distance from the inner wall of the bottom of the cavity 11.

[0053] A threaded rod 21 extends downward along its vertical center line from the bottom of the support platform 2. The threaded rod 21 has a cylindrical structure and its axis coincides with the vertical center line of the support platform 2. A through hole 12 is provided at the bottom of the base 1 for the threaded rod 21 to pass through. The axis of the through hole 12 coincides with the axis of the threaded rod 21, and the threaded rod 21 remains through the through hole 12 during the movement of the support platform 2 relative to the base 1.

[0054] Reference Figure 1 and Figure 3 The adjustment assembly 3 is installed at the bottom of the base 1 and includes an adjustment wheel 31 and an adjustment rod 32.

[0055] The adjusting wheel 31 has an overall ring structure. It is rotatably mounted on the base 1 and located in the through hole 12. Its rotation axis coincides with its own axis and the axis of the through hole 12. The threaded rod 21 passes through the through hole 12 and is threadedly engaged with the adjusting wheel 31.

[0056] The adjusting rod 32 has a cylindrical structure and is rotatably mounted on the base 1, located on one side of the radial direction of the adjusting wheel 31, with its rotation axis perpendicular to the rotation axis of the adjusting wheel 31. The adjusting rod 32 and the adjusting wheel 31 are threaded together, and controlling the rotation of the adjusting rod 32 relative to the base 1 drives the adjusting wheel 31 to rotate relative to the base 1. In this embodiment, preferably, the rotation axis of the adjusting rod 32 is parallel to one side of the square cross-section of the base 1; preferably, the driving principle between the adjusting wheel 31 and the adjusting rod 32 is achieved using a worm gear structure; and preferably, one end of the adjusting rod 32 in the axial direction has a structure that facilitates control of its rotation by construction personnel, and this structure is exposed in a countersunk manner. Since the worm gear structure is a common existing technology, the driving principle between the adjusting rod 32 and the adjusting wheel 31 will not be described in detail here, and the structures of the two are only briefly shown in the accompanying drawings.

[0057] By controlling the adjustment rod 32 to rotate relative to the base 1, the adjustment wheel 31 can be driven to rotate relative to the base 1, thereby driving the threaded rod 21 to move along its own axis, thus achieving the effect of the support platform 2 moving relative to the base 1.

[0058] Reference Figure 2 and Figure 3 When the base 1 is first installed and positioned on the base 7, the support platform 2 will be in a state of downward movement to its limit relative to the base 1. Before the base 1 is installed and positioned on the base 7, the construction personnel first determine the construction position of the precast beams and columns 6 on the base 7, and then drill holes in the base 7 to obtain holes for the threaded rod 21 to pass through. Then, the installation position of the base 1 on the base 7 is initially determined by the cooperation of the portion of the threaded rod 21 located below the base 1 with the hole. In this embodiment, it is preferable that the radial dimension of the hole is larger than the radial dimension of the threaded rod 21.

[0059] Reference Figure 1 and Figure 3 The locking assembly 4 is installed on the top of the support platform 2 and includes four locking elements 41 and two control elements 42, with each control element 42 corresponding to two locking elements 41. The locking elements 41 are used to contact the bottom structure of the precast beam-column 6 for locking and positioning; the control elements 42 are used by construction personnel to control the movement of the corresponding two locking elements 41 to lock and position the bottom structure of the precast beam-column 6.

[0060] The locking element 41 is a rectangular plate structure. It is movably mounted on the top of the support platform 2 and is positioned above it. Four locking elements 41 are arranged in a circular array on the support platform 2, with the vertical center line of the support platform 2 as the axis. The movement direction of each of the four locking elements 41 is perpendicular to the vertical center line of the support platform 2 and also perpendicular to the direction of their adjacent sides on the support platform 2. Each locking element 41 aligns with its corresponding counterpart along its own movement direction. At this point, the four locking elements 41 together enclose a positioning space 8 above the support platform 2, providing a horizontal positioning space for fixing the bottom structure of the precast beam-column 6. The size of the positioning space 8 changes with the movement of the four locking elements 41.

[0061] The control component 42 is a cylindrical rod-shaped structure, rotatably connected to the support platform 2. The rotation axis of the control component 42 coincides with its own axis and is parallel to the direction of movement of the corresponding locking component 41. The control component 42 and the corresponding two locking components 41 are threadedly engaged within the support platform 2, with the threaded engagement directions of the control component 42 and the corresponding two locking components 41 being opposite. Rotating the control component 42 drives the corresponding two locking components 41 to move synchronously and in opposite directions relative to the support platform 2, and the two locking components 41 maintain a symmetrical distribution relative to the support platform 2 during movement. In this embodiment, preferably, one end of the control component 42 along its axial direction has a structure that facilitates control of its rotation by construction personnel, and this structure is exposed in a countersunk manner. The two control components 42 are vertically offset within the support platform 2. Since the principle by which the control component 42 controls the movement of the corresponding two locking components 41 (i.e., screw drive) is a common existing technology, it will not be described in detail here, and is only briefly shown in the accompanying drawings.

[0062] To facilitate the operation of the locking component 4 by the construction personnel when the support platform 2 is moved to any position relative to the base 1, it is preferable that the base 1 has two exposed clearance openings 13 on its periphery, which allow the construction personnel to control the rotation of the control component 42.

[0063] The clearance opening 13 extends along the height direction of the base 1, and the two clearance openings 13 are located on two adjacent periphery of the base 1 respectively; when the support platform 2 is moved to any position relative to the base 1, the space in the cavity 11 located below the support platform 2 can be connected to the outside through the two clearance openings 13.

[0064] Reference Figure 3 and Figure 4Furthermore, to facilitate the initial positioning of the precast beams and columns 6 above the support platform 2 by construction personnel, it is preferable that the support platform 2 has several positioning openings 22 extending vertically through it. The bottom of the precast beams and columns 6 extends outward along its length with several embedded parts 61 that can pass through the positioning openings 22, and the positioning openings 22 correspond one-to-one with the embedded parts 61. In this embodiment, it is preferable that the support platform 2 has four positioning openings 22, which are arranged in a circular array around the vertical center line of the support platform 2, and their distribution pattern is the same as that of the four locking parts 41. Furthermore, it is preferable that the bottom of the precast beams and columns 6 has four embedded parts 61, and the size of the positioning openings 22 is larger than the size of the embedded parts 61.

[0065] The two ends of the positioning port 22 are respectively connected to the positioning space 8 and the space below the support platform 2 in the cavity 11. When all four embedded parts 61 of the precast beam column 6 pass through the corresponding four positioning ports 22 and their bottoms are in contact with the top of the support platform 2, the precast beam column 6 is initially positioned above the support platform 2, and the embedded parts 61 will be partially located in the space below the support platform 2 in the cavity 11. At this time, the bottom structure of the precast beam column 6 will fall into the positioning space 8. In the subsequent process of locking and positioning the bottom structure of the precast beam column 6 through the locking assembly 4, not only can the precast beam column 6 be positioned horizontally, but it can also be centered relative to the support platform 2, improving the positional accuracy of the precast beam column 6 during construction.

[0066] The positioning rod 5 has a cylindrical rod structure. The positioning rod 5 passes through the bottom of the base 1 and its axis is parallel to the height direction of the base 1. The positioning rod 5 can move relative to the base 1 along its own axis and can rotate relative to the base 1 about its own axis.

[0067] Reference Figure 3 and Figure 5 The four positioning rods 5 are arranged in a circular array on the base 1 with the axis of the through hole 12 as the axis. The distribution pattern of the four positioning rods 5 on the base 1 is the same as the distribution pattern of the four positioning holes 22 on the support platform 2. The line connecting the two positioning holes 22 near the two sides of the base 1 is parallel or perpendicular to the side length of the square cross section of the base 1.

[0068] The two ends of the positioning rod 5 along its axis are located below the base 1 and in the cavity 11 below the support platform 2, respectively. The end of the positioning rod 5 near the cavity 11 extends outwards along a direction perpendicular to its own axis and has a locking portion 51. The locking portion 51 can engage with the embedded part 61 and simultaneously restrict the positioning rod 5 from moving away from the base 1. In this embodiment, the exposed structure of the embedded part 61 is preferably U-shaped, with its internal space allowing the locking portion 51 to enter and engage.

[0069] The base 1 has four limiting members 9 and four elastic members 10 installed in the cavity 11 corresponding to the four positioning rods 5. The limiting members 9 are used to limit the position of the corresponding positioning rod 5 relative to the base 1; the elastic members 10 are used to drive the positioning rod 5 to rotate to the desired position after the limiting is released.

[0070] The limiting member 9 is elastic and is fixedly installed on the inner wall of the bottom of the cavity 11, located on the side of the corresponding positioning rod 5 near the through hole 12; the snap-fit ​​part 51 contacts and abuts against the limiting member 9, at which time the extension direction of the snap-fit ​​part 51 is parallel to the adjacent side of the square cross section of the base 1; and the four limiting members 9 are respectively aligned with the four positioning holes 22 on the support platform 2 in the vertical direction. In this embodiment, the limiting member 9 is preferably made of rubber material.

[0071] The elastic element 10 is fixedly installed on the side of the corresponding limiting element 9 away from the through hole 12. One end of the elastic element 10 is fixedly connected to the inner wall of the periphery of the cavity 11, and the other end can abut against the snap-fit ​​part 51 of the corresponding positioning rod 5 or against the corresponding limiting element 9. In this embodiment, the elastic element 10 is preferably a spring.

[0072] Reference Figure 3 and Figure 5 When the base 1 is first installed and positioned on the base 7, the support platform 2 is in a state of downward movement to its limit relative to the base 1, and all four positioning rods 5 are also in a state of downward movement to their limit relative to the base 1. At this time, the locking parts 51 of the positioning rods 5 are fixed between the corresponding elastic members 10 and limiting members 9. Before the base 1 is installed and positioned on the base 7, the construction personnel first determine the construction position of the precast beams and columns 6 on the base 7, and then drill holes in the base 7 to allow the four positioning rods 5 to pass through. The installation position of the base 1 on the base 7 is further determined by the cooperation of the parts of the four positioning rods 5 located below the base 1 with the four holes. In this embodiment, it is also preferable that the radial dimension of the holes is larger than the radial dimension of the positioning rods 5.

[0073] Reference Figure 3 and Figure 4After the base 1 is positioned on the base body 7, during the process of placing the precast beam and column 6 on the support platform 2, the embedded part 61 passing through the positioning port 22 will contact the corresponding limiting part 9, and at the same time drive the limiting part 9 to elastically deform until its limiting of the locking part 51 of the adjacent positioning rod 5 is released. At this time, the positioning rod 5 will rotate relative to the base 1 under the action of the corresponding elastic part 10, so that the corresponding locking part 51 will rotate and lock into the internal space of the embedded part 61 to form a locking fit. During the subsequent adjustment of the support platform 2 relative to the base 1, the four positioning rods 5 will move together, and the positioning rods 5 will still remain partially below the base 1 during the movement. In this embodiment, it is preferable that the rotation of the positioning rod 5 relative to the base 1 is limited; when the positioning rod 5 rotates to the limit position in the direction close to the through hole 12, the extension direction of the locking part 51 is towards the through hole 12; when the positioning rod 5 rotates to the limit position in the direction away from the through hole 12, the extension direction of the locking part 51 is parallel to the side length of the adjacent square cross section of the base 1.

[0074] Reference Figure 1 and Figure 6 When the support platform 2 is adjusted relative to the base 1 and the precast beam 6 is locked and positioned on the support platform 2 by the locking component 4, the installation position of the precast beam 6 is determined. In order to improve the structural strength of the bottom structure of the precast beam 6, a template needs to be built around the bottom structure of the precast beam 6 on the base 7 and concrete needs to be poured so that the bottom structure of the precast beam 6 is completely wrapped with concrete. After the concrete solidifies, the overall safety and stability of the precast beam 6 will be improved.

[0075] Reference Figure 1 and Figure 3 The threaded rod 21 has several first through holes 211 for concrete to flow through, and the several first through holes 211 are arranged in a circular array on the threaded rod 21 with the axis of the threaded rod 21 as the axis. The first through holes 211 extend along the axis of the threaded rod 21 as a whole. The end of the first through hole 211 near the support platform 2 passes through the threaded rod 21 in the radial direction to form an opening, and the end of the first through hole 211 away from the support platform 2 passes through the bottom of the threaded rod 21 to form an opening.

[0076] The positioning rod 5 also has a second through hole 52 for concrete to flow through. One end of the second through hole 52 passes through the bottom of the positioning rod 5 to form an opening, and the other end passes through the end of the snap-fit ​​part 51 to form an opening.

[0077] During the concrete pouring process, the concrete will enter the space below the support platform 2 in the cavity 11 through the two relief ports 13. After the concrete fills the space below the support platform 2 in the cavity 11, the concrete will flow into the five holes corresponding to the drilled holes on the base 7 through several first through holes 211 and four second through holes 52, and fill the five holes.

[0078] Once the concrete is poured and solidified, a new connection will be formed between the device and the base 7, and between the precast beams and columns 6 and the device, through the solidified concrete. This will effectively improve the structural strength of the bottom structure of the precast beams and columns 6 after construction.

[0079] The implementation principle of the precast concrete beam and column elevation adjustment device in this application embodiment is as follows:

[0080] First, holes are drilled in the base 7 to allow the threaded rod 21 and four positioning rods 5 to pass through. Then, the base 1 is installed and positioned on the base 7 by fitting the threaded rod 21 into the corresponding hole and the four positioning rods 5 into the corresponding hole. Next, the precast beam-column 6 is hoisted and placed on the support platform 2, so that the four embedded parts 61 at the bottom of the precast beam-column 6 pass through the four corresponding positioning holes 22 on the support platform 2. After the embedded parts 61 pass through the positioning holes 22, they will drive the limiting parts 9 to contact and limit the rotation of the corresponding positioning rods 5, so that the positioning rods 5 are in... The precast beam 6 rotates under the action of the elastic element 10, thereby achieving the snap-fit ​​engagement between the snap-fit ​​part 51 and the corresponding embedded part 61. Then, the bottom of the precast beam 6 is locked and positioned in the positioning space 8 by the locking component 4. The support platform 2 is then moved relative to the base 1 by the adjusting component 3, so that the height position of the top of the precast beam 6 meets the requirements. After that, a template is built around the base 1 on the base 7, and concrete is poured into the template to fill the interior of the device and enclose the entire device. After the concrete solidifies, the construction of the precast beam 6 is completed.

[0081] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for adjusting the elevation of precast concrete beams and columns, characterized in that, Includes a base (1), a support platform (2), and an adjustment assembly (3); The base (1) has a cavity (11) inside, and the cavity (11) forms an opening at the top of the base (1); the bottom of the base (1) has a through hole (12), and the through hole (12) communicates with the cavity (11); The support platform (2) is disposed in the cavity (11), forming a seal in the cavity (11), and is movable relative to the base (1) in the vertical direction; the bottom of the support platform (2) has a threaded rod (21) that can penetrate into the base (7) below the base (1), and the threaded rod (21) remains through the through hole (12). The adjustment assembly (3) includes an adjustment wheel (31) and an adjustment rod (32); the adjustment wheel (31) is rotatably disposed at the bottom of the base (1), the rotation axis of the adjustment wheel (31) is vertical, and the adjustment wheel (31) is sleeved and threadedly engaged with the threaded rod (21); the adjustment rod (32) is rotatably disposed at the bottom of the base (1), the rotation axis of the adjustment rod (32) is perpendicular to the rotation axis of the adjustment wheel (31), the adjustment rod (32) is located outside the adjustment wheel (31) and threadedly engaged with the adjustment wheel (31); the rotation of the adjustment rod (32) can drive the adjustment wheel (31) to rotate, and the rotation of the adjustment wheel (31) can drive the support platform (2) to move; It also includes a locking assembly (4), and the locking assembly (4) is disposed on the support platform (2); The locking assembly (4) includes several locking elements (41) and several control elements (42); the locking elements (41) are movably disposed on the top of the support platform (2) and can move in the horizontal direction, and the several locking elements (41) can enclose to form a positioning space (8) for locking the bottom of the precast beam column (6); the control elements (42) are rotatably connected to the support platform (2) and the rotation axis is horizontal; the several control elements (42) can control the movement of the several locking elements (41), and the base (1) has several clearance openings (13) on its periphery for the several control elements (42) to be exposed. During the movement of the support platform (2) relative to the base (1), the cavity (11) can communicate with the outside through the two clearance openings (13); The bottom of the precast beam (6) has several outwardly extending embedded parts (61), and the support platform (2) has several positioning ports (22) for the embedded parts (61) to be inserted. The positioning ports (22) are all connected to the positioning space (8), and the embedded parts (61) can pass through the positioning ports (22) and enter the cavity (11). The threaded rod (21) has several first through holes (211) inside, and the first through holes (211) pass through both ends of the threaded rod (21) in the length direction to form an opening; It also includes four positioning rods (5); The positioning rod (5) is disposed on the base (1), part of which is located below the base (1) and can penetrate the base (7) in a vertical direction; the four positioning rods (5) are arranged in a circular array with the axis of the through hole (12) as the axis; The positioning rod (5) is located in the cavity (11), and the end of the positioning rod (5) near the cavity (11) has a snap-fit ​​part (51); the positioning rod (5) can move vertically relative to the base (1) and can rotate about its own vertical axis. When the support platform (2) moves downward to the limit position, the positioning rod (5) can snap-fit ​​with the adjacent embedded part (61) through the snap-fit ​​part (51), and the positioning rod (5) after snap-fit ​​can move with the support platform (2). The positioning rod (5) has a second through hole (52) inside, which extends through both ends of the positioning rod (5) in the length direction to form an opening.

2. The elevation adjustment device for precast concrete beams and columns according to claim 1, characterized in that, The locking assembly (4) includes four locking parts (41) and two control parts (42), and the base (1) has two corresponding clearance openings (13). The control element (42) corresponds to the two locking elements (41). The two corresponding locking elements (41) are symmetrically distributed and their movement directions are parallel to each other. The movement directions of the two non-corresponding locking elements (41) are perpendicular to each other. The rotation axis of the control element (42) is parallel to the movement direction of the corresponding locking element (41). The control element (42) is threadedly engaged with the two corresponding locking elements (41) and the thread engagement directions are opposite.

3. The elevation adjustment device for precast concrete beams and columns according to claim 1, characterized in that, It also includes four limiting members (9) and four elastic members (10), and the four limiting members (9) and the four elastic members (10) correspond one-to-one with the four positioning rods (5); The limiting member (9) is disposed on one side corresponding to the snap-fit ​​part (51) to restrict the rotation of the positioning rod (5); the two ends of the elastic member (10) are respectively connected to the base (1) and the snap-fit ​​part (51), and have the tendency to drive the positioning rod (5) to rotate toward the corresponding limiting member (9); When the support platform (2) moves downward to its limit position, several of the embedded parts (61) can contact the four limiting parts (9) respectively and release the rotation restriction on the four positioning rods (5). The positioning rods (5) rotate under the action of the corresponding elastic parts (10), so that the snap-fit ​​part (51) snaps into the adjacent embedded part (61).

Images