Construction device and method for shallow round silo of umbrella frame structure

Abstract

The application relates to a construction device and a construction method of a shallow round bin of an umbrella frame structure, and belongs to the technical field of building construction. The device comprises a bin top support mechanism, a lifting mechanism and a limiting mechanism. The bin top support mechanism comprises a center frame and a radial frame. The radial frame is arranged outside the center frame. The bin top support mechanism is in an umbrella shape. A plurality of sliding blocks are distributed on the outer side of the radial frame in a circumferential direction. A plurality of lifting mechanisms are distributed on the top end of the side wall and used for connecting the second end of the radial frame. The limiting mechanism comprises a sliding groove and a clamping assembly. The sliding groove is arranged on the inner side of the side wall and extends in a vertical direction. The clamping assembly is arranged on the groove bottom of the sliding groove, and the sliding block is matched with the sliding groove. When the plurality of lifting mechanisms synchronously lift the bin top support mechanism, the sliding block moves vertically along the sliding groove. When the plurality of lifting mechanisms are not synchronous in lifting, the sliding block rotates around a horizontal shaft relative to the sliding groove, so that the sliding block is clamped with the clamping assembly, and the vertical lifting of the bin top support mechanism is limited. The application has the effect of improving the deflection problem of the bin top support mechanism in the lifting process.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a construction device and method for a shallow circular silo with an umbrella-shaped structure. Background Technology

[0002] Slipform construction involves using formwork fixed on top of already poured concrete to allow for the pouring of the next section of concrete. Once the concrete has reached a certain strength, the formwork is removed and raised to the top of the newly poured concrete for the next section. The entire concrete construction process is completed by continuously raising the formwork from bottom to top.

[0003] When slipforming the top of a shallow circular silo, the silo top support needs to be raised to a certain height to facilitate the pouring of the silo top. Currently, a lifting frame is typically installed at the top of the side wall of the shallow circular silo to raise the silo top support.

[0004] However, due to the large size of the silo top support, it is prone to vertical and horizontal deflection during the overall lifting process. This not only affects the stability of the construction but also increases the risk of collision or damage to the silo top support, thus affecting the reliability and safety of the construction.

[0005] Regarding the aforementioned technologies, the inventors believe that there is a defect that the lifting process of the silo top support is prone to deflection. Summary of the Invention

[0006] To address the issue of deflection during the lifting process of the silo roof support mechanism, this application provides a construction device and method for a shallow circular silo with an umbrella-shaped structure.

[0007] Firstly, the construction device for the umbrella-shaped shallow circular chamber provided in this application adopts the following technical solution:

[0008] A construction device for a shallow circular silo with an umbrella-shaped structure is disclosed. The silo includes a cylindrical hollow sidewall and an umbrella-shaped roof. The roof is located on the sidewall. The construction device includes a roof support mechanism comprising a central frame and radial frames. The radial frames surround the central frame, with a first end connected to the central frame and a second end extending away from the central frame, making the roof support mechanism umbrella-shaped. Several sliders are distributed circumferentially around the second end of the radial frames away from the central frame. Several lifting mechanisms are distributed at the top of the sidewall, connected to the second end of the radial frames, for driving the roof support mechanism. The support structure moves vertically to a preset position; several limiting mechanisms, each corresponding to a lifting mechanism, include a sliding groove and a locking component. The sliding groove is located on the inner side of the side wall and extends vertically. The locking component is located at the bottom of the sliding groove. A slider corresponds to each sliding groove and engages with it. When the lifting mechanisms simultaneously lift the silo top support structure, the slider moves vertically along the sliding groove. When the lifting mechanisms do not lift the silo top support structure synchronously, the slider rotates relative to the sliding groove around a horizontal axis, causing the slider to engage with the locking component and restricting the vertical lifting of the silo top support structure.

[0009] By adopting the above technical solution, the central frame provides support for the radial frame, ensuring that the first end can be reliably fixed to the central frame. The second end extends away from the central frame, thus giving the silo roof support structure an overall umbrella-shaped structure. This ensures that the silo roof after casting will have an umbrella-shaped shape. The lifting mechanism is circumferentially distributed at the top of the side wall, facilitating the application of lifting force to the silo roof support structure by connecting the second end. This ensures that the lifting force acts evenly on the silo roof support structure, contributing to the lifting stability of the silo roof support structure. Because the second end is away from the central frame and close to the inner side wall, the lifting mechanism extends away from the central frame at the second end. Multiple sliders are distributed circumferentially on the outer side, and grooves are set on the inner side of the sidewall. The sliders cooperate with the grooves to limit the horizontal torsional displacement of the silo top support mechanism. A locking component is set at the bottom of the groove. When the lifting of different lifting mechanisms causes the silo top support mechanism to deflect vertically, it can drive the slider to deflect within the groove, thereby locking the slider with the locking component and preventing the silo top support mechanism from continuing to lift. This avoids affecting the reliability and safety of construction due to excessive vertical displacement, and also facilitates timely correction of displacement, reducing the risk of the silo top support mechanism colliding with or being damaged by the sidewall.

[0010] Optionally, the locking assembly includes a plurality of first ratchet teeth, the first ratchet teeth being disposed at the bottom of the groove, the plurality of first ratchet teeth being distributed in a vertical direction, the first ratchet teeth being inclined downward, the longitudinal section of the slider being rectangular, and when the plurality of lifting mechanisms are lifted at different times, the upper surface of the slider is inclined, so that at least one of the sliders is engaged with the first ratchet teeth.

[0011] By adopting the above technical solution, the slider is rectangular at the longitudinal section of the side wall axis, so that the slider can engage with the first ratchet tooth when it deviates vertically, so as to adjust the lifting height of each lifting mechanism in time. The first ratchet tooth is inclined downward, which can engage the vertically deflected slider during the lifting process of the silo top support mechanism. However, it will not engage the slider when the silo top support mechanism is descending, so as to achieve rapid descent and disassembly.

[0012] Optionally, the locking assembly further includes a plurality of second ratchet teeth, which are disposed at the bottom of the slide groove. The second ratchet teeth are inclined downward along the vertical direction. A plurality of first ratchet teeth are disposed between two adjacent second ratchet teeth. The maximum horizontal distance between the second ratchet teeth and the bottom of the slide groove is greater than the maximum horizontal distance between the first ratchet teeth and the bottom of the slide groove. A first preset horizontal distance is provided between the first ratchet teeth and the slider, and a second preset horizontal distance is provided between the second ratchet teeth and the slider. The first preset horizontal distance is greater than the second preset horizontal distance.

[0013] By adopting the above technical solution, the second ratchet tooth can achieve a more accurate leveling function than the first ratchet tooth, improve the levelness of the silo top support mechanism during lifting, and further improve construction stability and safety.

[0014] Optionally, the second end of the radiation frame is fixed to the side wall at the preset position, and the height of the top of the slide is higher than the preset position.

[0015] By adopting the above technical solution, when the slider reaches the top of the chute, since the top of the chute is higher than the preset position, space can be reserved for the installation of the second end at the preset position. It is also convenient to limit the maximum height of the slider by the top of the chute, so that the top support mechanism can be accurately pulled into place and the vertical distance between the second end and the preset position is the same.

[0016] Optionally, the radial frame includes a plurality of upper chords and a plurality of support rods, each support rod corresponding to one of the upper chords. One end of each upper chord is connected to the central frame, and the other end of each upper chord is provided with the slider. One end of each support rod is connected to the central frame, and the other end of each support rod is connected to the upper chord. The support rod is arranged perpendicularly to the upper chord.

[0017] By adopting the above technical solution, the support rod is set perpendicular to the upper chord, which helps to ensure the support strength of the upper chord and improve the support stability of the silo top support mechanism.

[0018] Optionally, the radiation frame further includes several reinforcing rod groups, each group comprising two staggered reinforcing rods. The length of each reinforcing rod is less than the length of the upper chord, but greater than half the length of the upper chord. Adjacent upper chords are connected by connectors. The length of each reinforcing rod extends from the first end to the second end. The reinforcing rod group is positioned between two adjacent upper chords. The two reinforcing rods in the same group are located near the first end and the second end, respectively. The lower end of the reinforcing rod near the first end is less than the upper end of the reinforcing rod near the second end.

[0019] By adopting the above technical solution, the reinforcing rod can improve the support strength of the radial frame. The reinforcing rods between two adjacent upper chord rods are staggered, and the two reinforcing rods overlap along the length direction of the reinforcing rod. On the one hand, this optimizes the support effect, and on the other hand, it can also make the force distribution of the reinforcing rods on different straight lines, improve the load-bearing capacity, and optimize the force balance.

[0020] Optionally, it also includes a fixing mechanism, wherein a fixing part is provided at the preset position, the fixing mechanism is located at the fixing part, and the silo top support mechanism is fixed to the fixing mechanism.

[0021] By adopting the above technical solution, the silo top support mechanism can be fixed in a preset position by a fixing mechanism.

[0022] Secondly, the construction method for the umbrella-shaped shallow circular chamber provided in this application adopts the following technical solution:

[0023] A construction method for a shallow circular silo with an umbrella-like structure, using the aforementioned construction device, includes: sidewall casting and pre-embedding of fixing parts; center alignment, vertically aligning the central axis of the central frame with the central axis of the sidewall; assembling a silo top support mechanism, connecting the radial frame to the circumference of the central frame; connecting lifting mechanisms, distributing multiple lifting mechanisms circumferentially at the top of the sidewall, connecting the top of the sidewall to the fixing parts of the lifting mechanisms, with one end of the lifting part connected to the fixing part and the other end connected to the second end of the silo top support mechanism; lifting the silo top support mechanism, moving the silo top support mechanism driven by the lifting parts, and aligning the slider with the sliding groove; and casting the silo top, after the silo top support mechanism is lifted and fixed at the preset position, pouring concrete on the upper surface of the silo top support mechanism.

[0024] By adopting the above technical solution, the silo top support mechanism can remain stable during the lifting process of the umbrella-shaped shallow circular silo, reducing the risk of torsion and thus improving the reliability and safety of construction.

[0025] Optionally, when the sidewall is cast, two casting components are provided for casting. The casting components rotate around the circumference of the sidewall, and the two casting components rotate in opposite directions along the circumference of the sidewall.

[0026] By adopting the above technical solution, cold joints caused by unidirectional construction can be avoided, which would affect the supporting strength of the sidewall.

[0027] Optionally, in the sidewall casting, there are two sidewalls connected to each other, and the two sidewalls are cast by two casting components respectively, with the two casting components rotating in opposite directions around the sidewall.

[0028] By adopting the above technical solution, the simultaneous casting of the two side walls can improve the casting efficiency and help to set the casting process of the two side walls symmetrically, so that the casting components are cast in the same direction at the connection of the two side walls, thus ensuring the casting effect.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. The central frame provides support for the radial frame, ensuring the first end is reliably fixed to it. The second end extends away from the central frame, giving the silo roof support structure an umbrella-like shape. This ensures the silo roof will have an umbrella-like shape after casting. The lifting mechanism is circumferentially distributed at the top of the side walls, facilitating the application of lifting force to the silo roof support structure via the connection to the second end. This ensures the lifting force acts evenly on the silo roof support structure, contributing to its lifting stability. Because the second end is far from the central frame and close to the inner side wall, the lifting mechanism extends circumferentially from the outer side away from the central frame. Multiple sliders are distributed, and grooves are set on the inner side of the sidewall. The sliders cooperate with the grooves to limit the horizontal torsional displacement of the silo top support mechanism. A locking component is set at the bottom of the groove. When the lifting of different lifting mechanisms causes the silo top support mechanism to deflect vertically, it can drive the slider to deflect within the groove, thereby locking the slider with the locking component and preventing the silo top support mechanism from continuing to lift. This avoids affecting the reliability and safety of construction due to excessive vertical displacement, and also facilitates timely correction of displacement, reducing the risk of the silo top support mechanism colliding with or being damaged by the sidewall.

[0031] 2. The slider is rectangular in the longitudinal section at the side wall axis, so that it can engage with the first ratchet tooth when it deviates vertically, so as to adjust the lifting height of each lifting mechanism in time. The first ratchet tooth is inclined downward, so that it can engage the vertically deflected slider during the lifting process of the silo top support mechanism. However, it will not engage the slider when the silo top support mechanism is descending, so as to achieve rapid descent and disassembly.

[0032] 3. The second ratchet tooth can achieve a more accurate leveling function than the first ratchet tooth, improving the levelness of the silo top support mechanism during lifting, and further enhancing construction stability and safety. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the construction device for the umbrella frame structure shallow circular chamber according to an embodiment of this application.

[0034] Figure 2 This is a schematic diagram of the warehouse roof support mechanism according to an embodiment of this application.

[0035] Figure 3 This is a schematic diagram of the limiting mechanism according to an embodiment of this application.

[0036] Figure 4 This is a cross-sectional view of the limiting mechanism according to an embodiment of this application.

[0037] Figure 5 This is a schematic diagram of the fixing mechanism according to an embodiment of this application.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Side wall;

[0040] 1. Silo top support mechanism; 11. Central frame; 12. Radial frame; 121. Upper chord; 122. Support rod; 123. Reinforcing rod; 124. Lower chord; 125. Connecting piece; 13. Sliding block; 131. Guide part;

[0041] 2. Lifting mechanism;

[0042] 3. Limiting mechanism; 31. Slide groove; 311. Guide groove; 32. Locking assembly; 321. First ratchet tooth; 322. Second ratchet tooth;

[0043] 4. Fixed mechanism. Detailed Implementation

[0044] The following is in conjunction with the appendix Figures 1-5This application will be further described in detail below. In this embodiment, unless otherwise specified, "connection", "linking", and "fixing" are interpreted broadly, including fixed connection, detachable connection, connection to form an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, internal connection, and interaction between two components, etc., and can be understood according to the specific circumstances.

[0045] like Figure 1 As shown, in a first aspect, this application discloses a construction device (hereinafter referred to as the "device") for a shallow circular silo with an umbrella-shaped structure. The device includes a silo top support mechanism 1, several lifting mechanisms 2, and several limiting mechanisms 3. The shallow circular silo with an umbrella-shaped structure includes a cylindrical hollow side wall 100 and an umbrella-shaped silo top. The silo top is located on the side wall 100 to form a complete shallow circular silo. The device is used to provide support for the silo top so as to carry out concrete pouring and realize the construction of the shallow circular silo.

[0046] like Figure 1 and Figure 2 As shown, the warehouse roof support mechanism 1 includes a central frame 11 and a radial frame 12. The radial frame 12 surrounds the central frame 11. The first end of the radial frame 12 is connected to the central frame 11, and the second end of the radial frame 12 extends away from the central frame 11, making the warehouse roof support mechanism 1 umbrella-shaped.

[0047] The central frame 11 provides support and positioning for the radial frame 12, ensuring that the first end of the radial frame 12 is reliably fixed to the central frame 11. The second end of the radial frame 12 extends away from the central frame 11, and its height is lower than that of the first end. This results in the overall umbrella-shaped structure of the silo roof support mechanism 1, enabling the silo roof to take on an umbrella shape after pouring. The central frame 11 is a hollow cylindrical frame structure. Specifically, the central frame 11 has a cage-like inner cavity structure to provide reliable support while reducing weight, thus facilitating lifting.

[0048] like Figure 1 and Figure 2 As shown, optionally, the radial frame 12 includes a plurality of upper chord rods 121 and a plurality of support rods 122, with each support rod 122 corresponding to one of the upper chord rods 121. One end of the upper chord rod 121 is connected to the central frame 11, and the other end of the upper chord rod 121 is provided with a slider 13. One end of the support rod 122 is connected to the central frame 11, and the other end of the support rod 122 is connected to the upper chord rod 121. The support rod 122 is arranged perpendicularly to the upper chord rod 121.

[0049] One end of the upper chord 121 is connected to the outer periphery of the upper end of the central frame 11, and the other end extends downward at an angle. One end of the support rod 122 is connected to the outer periphery of the lower end of the central frame 11, and the other end is connected to the upper chord 121, so that the support rod 122 can be perpendicular to the upper chord 121. By setting the support rod 122 perpendicular to the upper chord 121, it helps to ensure the support strength of the upper chord 121 and improve the support stability of the silo top support mechanism 1. Since the end of the upper chord 121 away from the central frame 11 is close to the side wall 100, the slider 13 is set at the end of the upper chord 121 away from the central frame 11 so that it can cooperate with the limiting mechanism 3. In this embodiment, in order to improve the support strength of the silo top support mechanism 1, multiple lower chords 124 are also provided. The lower chords 124 correspond one-to-one with the upper chords 121. One end of the lower chord 124 is connected to the outer periphery of the lower end of the central frame 11, and the other end of the lower chord 124 is connected to the upper chord 121. It is understandable that the first end of the radial frame 12 mainly refers to the end of the upper chord 121 that is close to the central frame 11, and the second end of the radial frame 12 mainly refers to the end of the upper chord 121 that is far away from the central frame 11.

[0050] like Figure 1 and Figure 2 As shown, optionally, the radial support 12 also includes several reinforcing bar groups, each group comprising two staggered reinforcing bars 123. Adding reinforcing bars 123 improves the support strength of the radial support 12. The staggered arrangement of the reinforcing bars 123 between adjacent upper chord members 121, meaning the two reinforcing bars 123 are located on different straight lines, allows the force distribution on the reinforcing bars 123 to be distributed along different straight lines, improving the load-bearing capacity and optimizing the force balance.

[0051] The length of the reinforcing rod 123 is less than the length of the upper chord 121, but the length of the reinforcing rod 123 is greater than half the length of the upper chord 121. Adjacent upper chords 121 are connected by connectors 125. The length of the reinforcing rod 123 extends from the first end to the second end. The reinforcing rod group is located between two adjacent upper chords 121. The two reinforcing rods 123 in the same group are located near the first end and the second end, respectively. The lower end of the reinforcing rod 123 near the first end is less than the upper end of the reinforcing rod 123 near the second end. By having the two reinforcing rods 123 overlap in the length direction, the support effect is optimized. Furthermore, adding the reinforcing rod 123 also reduces the span between the two upper chords 121, improving stability.

[0052] like Figure 1 and Figure 2As shown, several lifting mechanisms 2 are distributed at the top of the side wall 100. Each lifting mechanism 2 is connected to the second end of the radial frame 12 and is used to drive the silo top support mechanism 1 to move vertically to a preset position. The lifting mechanisms 2 are circumferentially distributed at the top of the side wall 100, facilitating connection to the second end of the radial frame 12 via suspended lifting components. This allows the silo top support mechanism 1 to be subjected to a lifting force, ensuring the force acts vertically and maintaining a balanced effect, thus contributing to the lifting stability of the silo top support mechanism 1. The connecting component 125 can be a rod-shaped structure.

[0053] like Figure 1 , Figure 3 and Figure 4 As shown, the limiting mechanism 3 corresponds one-to-one with the lifting mechanism 2. The limiting mechanism 3 includes a slide groove 31 and a locking assembly 32. The slide groove 31 is located on the inner side of the side wall 100 and extends vertically. The locking assembly 32 is located at the bottom of the slide groove 31. Several sliders 13 are distributed circumferentially on the outer side away from the central frame 11 at the second end of the radial frame 12. Each slider 13 corresponds to a slide groove 31 and engages with the slide groove 31. Since the second end is far from the central frame 11 and close to the circumferential inner side of the side wall 100, by distributing multiple sliders 13 circumferentially on the outer side away from the central frame 11 at the second end, and by setting the slide groove 31 on the circumferential inner side of the side wall 100, the sliders 13 engage with the slide groove 31, thereby limiting the horizontal torsional displacement of the silo top support mechanism 1. Since the slide 31 guides the slider 13, the slider 13 can only move vertically along the slide 31. When the silo top support mechanism 1 is horizontally twisted, the slider 13 will get stuck in the slide 31, which indicates that the silo top support mechanism 1 has been horizontally twisted, making it easy for the operator to make timely adjustments.

[0054] When several lifting mechanisms 2 simultaneously lift the silo top support mechanism 1, the slider 13 can move smoothly vertically along the slide groove 31. When the vertical lifting of the silo top support mechanism 1 by the several lifting mechanisms 2 is not synchronized, the slider 13 rotates relative to the slide groove 31 around the horizontal axis, causing the slider 13 to engage with the locking component 32, thus restricting the vertical lifting of the silo top support mechanism 1. Guide grooves 311 are provided on both opposite limiting walls of the slide groove 31, and guide portions 131 are provided on both sides of the slider 13, so that the two guide portions 131 pass through the two guide grooves 311 respectively, allowing the slider 13 to slide vertically along the guide grooves 311. Simultaneously, because the guide portions 131 on both sides of the slider 13 are symmetrically arranged, the slider 13 can rotate around the line containing the guide portions 131. Therefore, when the lifting is not synchronized, the slider 13 can deflect vertically with the silo top support mechanism 1, thus causing the vertically deflected slider 13 to engage with the locking component 32. After the slider 13 engages with the locking component 32, it will prevent the silo top support mechanism 1 from continuing to rise, thereby avoiding the impact on the reliability and safety of construction due to excessive vertical offset. It also facilitates timely detection and correction of offset, reducing the risk of the silo top support mechanism 1 colliding with or being damaged by the side wall 100.

[0055] like Figure 1 and Figure 5 As shown, optionally, the second end of the radial frame 12 is fixed to the side wall 100 at a preset position so that the silo roof support mechanism 1 can act as a template to provide support for the concrete poured on the silo roof. The device also includes a fixing mechanism 4, with a fixing part provided at a preset position, the fixing mechanism 4 being located at the fixing part, and the silo roof support mechanism 1 being fixed to the fixing mechanism 4.

[0056] The fixing part can be a shear bolt sleeve pre-embedded during the pouring of the side wall 100. The pouring of the side wall 100 allows the shear bolt sleeve to be positioned and the fixing mechanism 4 to be installed. The fixing mechanism 4 can include a horizontal part and an inclined part. One end of the horizontal part connects to the fixing part, and the other end extends horizontally. One end of the inclined part connects to the lower side of the horizontal part away from the fixing part, and the other end of the inclined part connects to the fixing part and is located below the horizontal part, so that the fixing mechanism 4 and the fixing part form a triangular support, improving stability. The silo top support mechanism 1 can be fixed in a preset position by the fixing mechanism 4. Specifically, the second end of the silo top support mechanism 1 is located on the horizontal part. It is understood that the fixing mechanism 4 is installed after the silo top support mechanism 1 is moved above the fixing part to avoid interference. A suspended basket can be installed on the silo top support mechanism 1, allowing operators to install the fixing mechanism 4 from below the silo top support mechanism 1.

[0057] like Figure 1 and Figure 4As shown, optionally, the locking assembly 32 includes a plurality of first ratchet teeth 321. The first ratchet teeth 321 are disposed at the bottom of the groove 31. The plurality of first ratchet teeth 321 are distributed in the vertical direction and the first ratchet teeth 321 are inclined downward. The longitudinal section of the slider 13 is rectangular. When the plurality of lifting mechanisms 2 are lifted at different times, the upper surface of the slider 13 is inclined, so that at least one slider 13 is engaged with the first ratchet teeth 321.

[0058] The slider 13 is rectangular in its longitudinal section along the axis of the side wall 100, allowing it to engage with the first ratchet tooth 321 during vertical offset. The specific connection between the slider 13 and the upper chord 121 is not limited; it can be made to allow the slider 13 to deflect vertically with the silo top support mechanism 1. For example, the lower end of the slider 13 can be connected to the end of the upper chord 121, so that at least one slider 13 engages with the locking assembly 32 during vertical offset. Simultaneously, because the first ratchet tooth 321 is inclined downwards, engagement only occurs during the upward movement of the slider 13, allowing for timely adjustment of the lifting height of each lifting mechanism 2. After the silo top is poured, the silo top support mechanism 1 needs to be disassembled and lowered. The downward inclination of the first ratchet tooth 321 reduces the possibility of engagement with the slider 13 during the descent of the silo top support mechanism 1, thus enabling rapid descent and disassembly of the silo top support mechanism 1. Understandably, by determining the position where the slider 13 engages, it is easier to determine the position of the lifting mechanism 2 that needs to be adjusted, thereby improving work efficiency and reducing work difficulty.

[0059] like Figure 1 and Figure 4 As shown, optionally, the locking assembly 32 further includes a plurality of second ratchet teeth 322. The second ratchet teeth 322 are disposed at the bottom of the groove 31 and are inclined downward. The maximum horizontal distance between the second ratchet teeth 322 and the bottom of the groove 31 is greater than the maximum horizontal distance between the first ratchet teeth 321 and the bottom of the groove 31. A first preset horizontal distance is provided between the first ratchet teeth 321 and the slider 13, and a second preset horizontal distance is provided between the second ratchet teeth 322 and the slider 13. The first preset horizontal distance is greater than the second preset horizontal distance. The second ratchet teeth 322 protrude from the bottom of the groove 31 at a greater height than the first ratchet teeth 321, enabling the second ratchet teeth 322 to achieve a more accurate leveling function than the first ratchet teeth 321, improving the levelness of the silo top support mechanism 1 during lifting, and further improving construction stability and safety.

[0060] Along the vertical direction, multiple first ratchet teeth 321 are provided between two adjacent second ratchet teeth 322. To improve the smoothness of the lifting of the silo top support mechanism 1, the second ratchet teeth 322 are spaced apart to avoid frequent jamming during lifting due to excessively high requirements for levelness, which would affect normal lifting. The number of first ratchet teeth 321 between two adjacent second ratchet teeth 322 can be set as needed; the specific dimensions of the first ratchet teeth 321 and the second ratchet teeth 322, as well as the first preset horizontal spacing and the second preset horizontal spacing, can all be set according to the lifting requirements.

[0061] like Figure 1 , Figure 3 and Figure 5 As shown, optionally, the top of the slide 31 is higher than a preset position. When the slider 13 reaches the top of the slide 31, since the top of the slide 31 is higher than the preset position, space is reserved for the installation of the fixing mechanism 4 at the preset position. At the same time, it is also convenient to limit the maximum height of the slider 13 by the height of the top of the slide 31, so that the silo top support mechanism 1 can be accurately pulled into place; by the position of the second end after being pulled into place, it is also convenient to determine the installation position of the fixing mechanism 4, so that the vertical distance between the second end and the fixing mechanism 4 is the same, thereby ensuring that the installation position of the fixing mechanism 4 is on the same horizontal plane, and thus ensuring that the silo top support mechanism 1 still has good parallelism after being fixed. It can be understood that the fixing mechanism 4 can be provided with a clearance part so that the slide 31 can extend above the fixing part; the locking component 32 can be detachably installed on the circumferential inner side of the side wall 100.

[0062] The implementation principle of the construction device for a shallow circular silo with an umbrella-like structure according to an embodiment of this application is as follows: The central frame 11 provides support for the radial frame 12, so that the first end can be reliably fixed to the central frame 11, and the second end extends away from the central frame 11, thereby making the silo roof support mechanism 1 as a whole umbrella-shaped structure, so that the silo roof after pouring is umbrella-shaped; multiple lifting mechanisms 2 are circumferentially distributed at the top of the side wall 100, which facilitates the application of vertical lifting force to the silo roof support mechanism 1 by connecting the second end, and ensures that the lifting force on the silo roof support mechanism 1 is balanced through multiple force points, thus ensuring the lifting stability of the silo roof support mechanism 1; since the second end is away from the central frame 11 and close to the circumferential inner side of the side wall 100, by connecting the second end... Multiple sliders 13 are distributed circumferentially on the outer side away from the central frame 11. A groove 31 is provided on the inner circumferential side of the side wall 100 so that the sliders 13 cooperate with the groove 31, thereby limiting the horizontal torsional displacement of the silo top support mechanism 1. A locking component 32 is provided at the bottom of the groove 31. When the lifting of different lifting mechanisms 2 causes the silo top support mechanism 1 to deflect vertically, it can drive the sliders 13 to deflect within the groove 31, thereby locking the sliders 13 with the locking component 32. This can prevent the silo top support mechanism 1 from being lifted further, avoid affecting the reliability and safety of construction due to excessive vertical displacement, and facilitate timely correction of displacement, reducing the risk of collision or damage between the silo top support mechanism 1 and the side wall 100.

[0063] Secondly, embodiments of this application disclose a construction method (hereinafter referred to as the "method") for a shallow circular chamber with an umbrella-like structure, which uses the aforementioned construction device for a shallow circular chamber with an umbrella-like structure. The method includes:

[0064] S1. Side wall casting and pre-embedded fixing parts;

[0065] S2. Align the center with the center axis of the center frame 11 vertically with the center axis of the side wall 100.

[0066] S3. Assemble the top support mechanism to connect the radial frame 12 to the circumferential direction of the central frame 11;

[0067] S4. The lifting mechanism is connected so that multiple lifting mechanisms 2 are circumferentially distributed at the top of the side wall 100. The top of the side wall 100 is connected through the fixing part of the lifting mechanism 2. One end of the lifting part of the lifting mechanism 2 is connected to the fixing part, and the other end is connected to the second end of the top support mechanism 1.

[0068] S5. The silo top support mechanism is pulled up, and the pulling component drives the silo top support mechanism 1 to move, so that the slider 13 and the slide groove 31 are correspondingly engaged.

[0069] S6. Concrete pouring for the silo top: After the silo top support mechanism 1 is pulled up and fixed in the preset position, concrete is poured on the upper surface of the silo top support mechanism 1.

[0070] like Figure 1 As shown, the sidewall is constructed using slipform construction, gradually pouring from the bottom of the sidewall 100 upwards. Upon reaching the predetermined position, a fixing part is pre-embedded to provide positioning and a reliable support foundation for the silo roof support mechanism 1. The central frame 11 can be assembled inside the sidewall 100 or assembled and then hoisted to the inside of the sidewall 100. By vertically aligning the central axis of the central frame 11 with the central axis of the hollow column-shaped sidewall 100, the initial position of the central frame 11 is ensured to be on the central axis of the sidewall 100, which helps to maintain initial symmetry and parallelism after the silo roof support mechanism 1 is installed. After determining the position of the central frame 11, the upper chord 121, support rod 122, lower chord 124, connector 125, and reinforcing rod 123 are connected circumferentially to form the silo roof support mechanism 1.

[0071] The structure of the fixing component of the lifting mechanism 2 is not limited, as long as it can be stably fixed to the top of the side wall 100. The lifting component can be an electric hoist, which is connected to the fixing component so that the movable end of the electric hoist is connected to the upper side of the second end. A connecting part can be provided on the upper side of the end of the upper chord 121 near the side wall 100. The connecting part can be a replaceable structure, which connects the movable end of the electric hoist to the connecting part, so that the electric hoist can drive the silo top support mechanism 1 to move vertically upward. It should be noted that before lifting, the slider 13 is engaged with the guide groove 311 to limit horizontal torsion and vertical deflection. In this embodiment, the slider 13 can be detachably installed on the silo top support mechanism 1 and engage with the guide groove 311 during use; in other embodiments, the slider 13 can always engage with the guide groove 311 and be assembled with the silo top support mechanism 1 during use.

[0072] like Figure 1 and Figure 3 As shown, after the silo top support mechanism 1 moves to the top limit of the slide 31, the fixing mechanism 4 is installed at the fixing part. The silo top support mechanism 1 is then lowered to cooperate with the fixing mechanism 4 and fixed. Subsequently, the formwork can be laid on top and the silo top can be poured. After the poured concrete reaches the preset strength, the fixing mechanism 4 can be removed, allowing the silo top support mechanism 1 to be lowered and dismantled. Since there are already relevant technologies for dismantling the silo top support mechanism 1, they will not be described in detail here. This method can keep the silo top support mechanism stable during the lifting process in the construction of the umbrella-shaped shallow circular silo, reducing the risk of horizontal torsion and vertical deflection, and improving the reliability and safety of construction.

[0073] Optionally, two casting elements are used for casting during the pouring of the sidewall 100. These casting elements rotate circumferentially around the sidewall 100, with opposite rotation directions along the circumference. Reverse casting avoids cold joints caused by unidirectional construction, which could affect the supporting strength of the sidewall. Alternatively, two sidewalls 100 can be constructed, connected to each other, and each sidewall 100 can be cast using two casting elements, with opposite rotation directions along the circumference. Simultaneous casting of both sidewalls 100 improves casting efficiency and helps ensure symmetrical casting progress, allowing the casting elements to be cast in the same direction at the connection point, thus guaranteeing the casting effect. The casting elements can be a boom pump, which offers good stability and does not affect the sidewall 100.

[0074] The implementation principle of the construction method of a shallow circular silo with an umbrella-like structure according to an embodiment of this application is as follows: First, the side wall 100 is poured to provide support for the pouring of the silo roof, and a fixing part is pre-embedded during the pouring of the side wall 100 to provide a foundation for the installation of the fixing mechanism 4; the central axis of the central frame 11 is vertically aligned with the central axis of the side wall 100, thereby ensuring the centering and symmetry of the silo roof support mechanism 1 during the installation stage, which helps to maintain the lifting stability and level after the radial frame 12 is installed; after the silo roof support mechanism is assembled, it is connected to the second lifting mechanism 2 installed on the top of the side wall 100. At the end, the silo roof support mechanism 1 is moved upward by the synchronous lifting of multiple lifting mechanisms 2. Since the synchronicity of different lifting mechanisms 2 is not easy to guarantee, a slider 13 is set at the second end and a groove 31 is set on the inner circumferential side of the side wall 100. Through the cooperation of slider 13 and groove 31, the horizontal torsion and vertical deflection of the silo roof support mechanism 1 are restricted, so that the silo roof support mechanism 1 maintains stability and horizontality during the lifting process, and the silo roof support mechanism 1 moves smoothly and is fixed to the fixing mechanism 4. The concrete is poured by laying the template on top, and the construction of the silo roof is realized.

[0075] 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 construction device for a shallow circular silo with an umbrella-like structure, characterized in that, The umbrella-shaped shallow circular chamber includes a cylindrical hollow sidewall (100) and an umbrella-shaped top, the top being located on the sidewall (100). The construction device for the umbrella-shaped shallow circular chamber includes: The warehouse roof support mechanism (1) includes a central frame (11) and a radial frame (12). The radial frame (12) is arranged around the outer periphery of the central frame (11). The first end of the radial frame (12) is connected to the central frame (11). The second end of the radial frame (12) extends away from the central frame (11), making the warehouse roof support mechanism (1) umbrella-shaped. Several sliders (13) are distributed circumferentially on the outer side of the second end of the radial frame (12) away from the central frame (11). Several lifting mechanisms (2) are distributed at the top of the side wall (100). The lifting mechanism (2) is connected to the second end of the radial frame (12) and is used to drive the top support mechanism (1) to move vertically to a preset position. Several limiting mechanisms (3) are provided, each corresponding to one of the lifting mechanisms (2). Each limiting mechanism (3) includes a sliding groove (31) and a locking component (32). The sliding groove (31) is located inside the side wall (100) and extends vertically. The locking component (32) is located at the bottom of the sliding groove (31). Each slider (13) corresponds to one of the sliding grooves (31) and engages with the sliding grooves (31). When several of the lifting mechanisms (2) simultaneously lift the silo top support mechanism (1), the slider (13) moves vertically along the slide groove (31); when the vertical lifting of the silo top support mechanism (1) by several of the lifting mechanisms (2) is not synchronized, the slider (13) rotates relative to the slide groove (31) around the horizontal axis, so that the slider (13) engages with the locking component (32) to restrict the vertical lifting of the silo top support mechanism (1); The locking assembly (32) includes a plurality of first ratchet teeth (321), the first ratchet teeth (321) are disposed at the bottom of the groove (31), the plurality of first ratchet teeth (321) are distributed in the vertical direction, the first ratchet teeth (321) are inclined downward, the longitudinal section of the slider (13) is rectangular, when the plurality of lifting mechanisms (2) are lifted at different times, the upper surface of the slider (13) is inclined, so that at least one slider (13) is engaged with the first ratchet teeth (321); The locking assembly (32) further includes a plurality of second ratchet teeth (322), which are disposed at the bottom of the groove (31). The second ratchet teeth (322) are inclined downward along the vertical direction. A plurality of first ratchet teeth (321) are provided between two adjacent second ratchet teeth (322). The maximum horizontal distance between the second ratchet teeth (322) and the bottom of the groove (31) is greater than the maximum horizontal distance between the first ratchet teeth (321) and the bottom of the groove (31). A first preset horizontal distance is provided between the first ratchet teeth (321) and the slider (13). A second preset horizontal distance is provided between the second ratchet teeth (322) and the slider (13). The first preset horizontal distance is greater than the second preset horizontal distance.

2. The construction device for the umbrella-shaped shallow circular chamber according to claim 1, characterized in that: The second end of the radiation frame (12) is fixed to the side wall (100) at the preset position, and the top of the slide (31) is higher than the preset position.

3. The construction device for the umbrella-shaped shallow circular chamber according to claim 1, characterized in that: The radial frame (12) includes several upper chords (121) and several support rods (122). The support rods (122) correspond one-to-one with the upper chords (121). One end of the upper chord (121) is connected to the central frame (11), and the other end of the upper chord (121) is provided with the slider (13). One end of the support rod (122) is connected to the central frame (11), and the other end of the support rod (122) is connected to the upper chord (121). The support rod (122) is perpendicular to the upper chord (121).

4. The construction device for the umbrella-shaped shallow circular chamber according to claim 3, characterized in that: The radiation frame (12) also includes several reinforcing rod groups, each group including two staggered reinforcing rods (123). The length of the reinforcing rod (123) is less than the length of the upper chord (121), and the length of the reinforcing rod (123) is greater than half the length of the upper chord (121). Adjacent upper chords (121) are connected by connectors (125). The length direction of the reinforcing rod (123) extends from the first end to the second end. The reinforcing rod group is located between two adjacent upper chords (121). The two reinforcing rods (123) in the same reinforcing rod group are close to the first end and the second end, respectively. The lower end height of the reinforcing rod (123) close to the first end is less than the upper end height of the reinforcing rod (123) close to the second end.

5. The construction device for the umbrella-shaped shallow circular chamber according to claim 1, characterized in that: It also includes a fixing mechanism (4), the preset position is provided with a fixing part, the fixing mechanism (4) is provided on the fixing part, and the warehouse top support mechanism (1) is fixed to the fixing mechanism (4).

6. A construction method for a shallow circular silo with an umbrella-like structure, characterized in that: Using the construction apparatus for the shallow circular chamber of the umbrella frame structure as described in any one of claims 1-5, the construction method of the shallow circular chamber of the umbrella frame structure includes: The side walls are cast and pre-embedded with fixing parts; Align the center with the center axis of the center frame (11) vertically aligned with the center axis of the side wall (100); The warehouse top support mechanism is assembled to connect the radial frame (12) to the circumference of the central frame (11); The lifting mechanism is connected so that multiple lifting mechanisms (2) are circumferentially distributed at the top of the side wall (100). The top of the side wall (100) is connected through the fixing part of the lifting mechanism (2). One end of the lifting part of the lifting mechanism (2) is connected to the fixing part, and the other end is connected to the second end of the warehouse top support mechanism (1). The silo top support mechanism is raised, and the silo top support mechanism (1) is moved by the raising component, so that the slider (13) and the slide groove (31) are correspondingly engaged; Concrete is poured on the upper surface of the silo top after the silo top support mechanism (1) is raised and fixed in the preset position.

7. The construction method of the umbrella-shaped shallow circular chamber according to claim 6, characterized in that: When the side wall (100) is cast, two casting components are provided for casting. The casting components rotate around the circumference of the side wall (100), and the two casting components rotate in opposite directions along the circumference of the side wall (100).

8. The construction method of the umbrella-shaped shallow circular chamber according to claim 6, characterized in that: In the sidewall casting, there are two sidewalls (100), which are connected to each other. The two sidewalls (100) are cast by two casting components respectively, and the two casting components rotate in opposite directions along the circumference of the sidewalls (100).

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