Tower tube pouring tool

Abstract

The embodiment of the invention provides a tower tube pouring tool which comprises an inner tube and an outer tube, the outer tube is arranged on the periphery of the inner tube in a sleeving mode, and a pouring space is formed between the outer tube and the inner tube; the supporting assembly is supported on the peripheral face of the toppled outer barrel, a set angle is kept between the outer barrel and the horizontal plane, and the first end of the outer barrel is lower than the second end of the outer barrel; the first tool flange is connected to the first end of the outer cylinder and blocks the first end of the pouring space, a pouring opening is formed in the first tool flange, and the pouring opening communicates with the pouring space; and the second tool flange is connected to the second end of the outer cylinder and blocks the second end of the pouring space, an exhaust port is formed in the second tool flange, and the exhaust port communicates with the pouring space. In the pouring process, the concrete does not need to be vertically lifted by a large distance, the vertical pressure is small, the overall pumping jacking pressure of the concrete can be reduced, the probability that the tower barrel is extruded by the concrete to deform is reduced, high-altitude operation is avoided, and the safety risk is reduced.

Description

Technical Field

[0001] The present invention relates to the field of tooling equipment for wind turbine generator sets, and in particular to a tower casting tool. Background Art

[0002] The tower is very long. To facilitate casting, it is necessary to divide the tower into multiple sections, cast the tower in sections, and then connect the multiple sections to form a complete tower. Figure 1 As shown, a tower section is erected. Because this section is still relatively high and requires stable support, multiple sets of support members 30a are used to support it between the ground and the tower. The tower section comprises an inner tube 10a and an outer tube 20a sleeved outside the inner tube 10a. A pouring port 230a is provided at the bottom of the sidewall of the outer tube 20a, and a connecting pipe 60a is welded to it. An exhaust port 240a is provided near the pouring port 230a on the sidewall of the outer tube 20a. During pouring, concrete enters the pouring space 210a between the inner and outer tubes 10a through the bottom connecting pipe 60a and the pouring port 230a. Pump pressure causes the concrete to rise within the pouring space 210a. After slurry emerges from the exhaust port 240a, it is sealed with a thin steel wire. After the entire tower section is filled with concrete, the top surface of the tower is manually treated. After the concrete hardens, the thin steel wire and connecting pipe 60a are removed, completing the pouring of this tower section. Finally, the tower sections are connected to form a complete tower section by means of the existing connecting flange 220a at the end of each tower section.

[0003] However, the tower casting method of the related art has the following disadvantages:

[0004] 1) As concrete is pumped vertically upward, the vertical pressure is relatively high, which can easily cause the tower body to deform;

[0005] 2) The height of each tower section is high, which places high demands on the support system, increases the risk factor, and poses a risk of collapse. In addition, the erection and removal of multiple sets of support members 30a are time-consuming and labor-intensive.

[0006] 3) The concrete on the top of the tower needs to be finished manually, resulting in poor flatness and the risk of working at height;

[0007] 4) The tower body needs to have a pouring port 230a and an exhaust port 240a, which affects the integrity of the tower;

[0008] 5) The ground where the tower is placed needs to be sealed to prevent the bottom from leaking out. The overall cost of tower casting is high. Summary of the Invention

[0009] Therefore, an object of the present invention is to provide a tower casting tool to at least solve one of the problems existing in the above-mentioned prior art or related art.

[0010] According to one aspect of the present invention, an embodiment provides a casting tool for a tower tube, the casting tool comprising: an inner tube and an outer tube, the outer tube being sleeved on the outer circumference of the inner tube, and a casting space being formed between the outer tube and the inner tube; a support assembly, supported on the outer circumferential surface of the outer tube after tilting, and maintaining a set angle between the outer tube and the horizontal plane, with the first end of the outer tube being lower than the second end of the outer tube; a first tooling flange, connected to the first end of the outer tube and sealing the first end of the casting space, a casting port being provided on the first tooling flange, and the casting port being connected to the casting space; a second tooling flange, connected to the second end of the outer tube and sealing the second end of the casting space, an exhaust port being provided on the second tooling flange, and the exhaust port being connected to the casting space.

[0011] The tower casting tool provided in the embodiment of this aspect allows the tower to be placed at an angle, and uses a support assembly to support the tower after it has fallen, so that the tower can be cast in a tilted posture. During the casting process, the concrete does not need to rise vertically a large distance, and the vertical pressure is small, which can reduce the overall concrete pumping pressure and reduce the probability of the tower being squeezed and deformed by the concrete. In addition, the concrete enters from the casting port at the lower end and is exhausted from the exhaust port at the higher end, which is conducive to the concrete being lifted and densely filling the casting space. In addition, the height of the tower is reduced after it is placed at an angle, avoiding high-altitude operations and reducing safety risks. In addition, the two ends of the casting space are respectively blocked by the first tooling flange and the second tooling flange. The concrete directly contacts the tooling flanges at both ends, the end surface is flat, and there is no need to seal the ground on which the tower is placed, reducing the casting cost. In addition, the casting port is directly set on the first tooling flange and the exhaust port is set on the second tooling flange, eliminating the need for an opening on the barrel of the outer barrel and will not affect the overall structure of the tower.

[0012] In addition, since the tower is placed at an angle, the support components can directly support the tower from below, thereby reducing the requirements for the support system, facilitating the erection and dismantling of the support components, and reducing the risk of tower collapse.

[0013] Additional aspects and / or advantages of the present general inventive concept will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present general inventive concept. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and other objects and features of the present invention will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 A schematic diagram of a casting tool for a lattice tower in the related art is shown;

[0016] Figure 2 A schematic diagram of a tower casting tooling according to an embodiment of the present application is shown;

[0017] Figure 3 A schematic diagram of a tower casting tooling according to another embodiment of the present application is shown;

[0018] Figure 4 A schematic structural diagram of a bracket according to an embodiment of the present application is shown;

[0019] Figure 5 A schematic structural diagram of another bracket according to an embodiment of the present application is shown;

[0020] Figure 6 A schematic structural diagram of another bracket according to an embodiment of the present application is shown;

[0021] Figure 7 A schematic structural diagram of a first tooling flange according to an embodiment of the present application is shown;

[0022] Figure 8 A schematic radial cross-sectional view of a first tooling flange according to an embodiment of the present application is shown;

[0023] Figure 9 Shown Figure 8 A partial enlarged view of point I in the middle;

[0024] Figure 10 A schematic structural diagram of a second tooling flange according to an embodiment of the present application is shown;

[0025] Figure 11 A schematic radial cross-sectional view of a second tooling flange according to an embodiment of the present application is shown;

[0026] Figure 12 Shown Figure 11 A partial enlarged view of the middle J;

[0027] Figure 13 A schematic structural diagram of a connecting pipe and a check valve according to an embodiment of the present application is shown;

[0028] Figure 14 A partial structural diagram of a connecting pipe and a check valve according to an embodiment of the present application is shown;

[0029] Figure 15 Another partial structural schematic diagram of a connecting pipe and a check valve according to an embodiment of the present application is shown;

[0030] Figure 16 A schematic structural diagram of a rubber gasket according to an embodiment of the present application is shown;

[0031] Figure 17 A schematic structural diagram of a valve plate according to an embodiment of the present application is shown;

[0032] Figure 18A schematic structural diagram of an exhaust pipe according to an embodiment of the present application is shown;

[0033] Figure 19 A schematic diagram of the end structure of the first section of the exhaust pipe according to an embodiment of the present application is shown.

[0034] Figure 1 Description of Figure Numbers:

[0035] 10a inner cylinder, 20a outer cylinder, 210a casting space, 220a connecting flange, 230a casting port, 240a exhaust port, 30a support member, 60a connecting pipe;

[0036] Figures 2 to 15 Description of Figure Numbers:

[0037] 10 inner cylinder,

[0038] 20 outer cylinder, 210 first connecting flange, 220 second connecting flange,

[0039] 30 support assembly, 310 first bracket, 320 second bracket, 330 third bracket, 340 arc-shaped support surface, 350 bottom plate, 360 support plate,

[0040] 40 first tooling flange, 410 pouring port, 420 first protrusion,

[0041] 50 second tooling flange, 510 exhaust port, 520 second protrusion,

[0042] 60 connecting pipe, 610 first section connecting pipe, 611 first flange, 612 reinforcing rib, 620 second section connecting pipe, 621 second flange, 630 third section connecting pipe,

[0043] 70 check valve, 710 valve plate, 720 rubber gasket,

[0044] 80 exhaust pipe, 810 first section exhaust pipe, 811 third flange, 820 second section exhaust pipe,

[0045] 90 concrete delivery pipe. DETAILED DESCRIPTION

[0046] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices and / or systems described herein. However, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be clear after understanding the disclosure of the present application. For example, the order of operations described herein is merely an example and is not limited to those orders set forth herein, but can be changed as will be clear after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, for greater clarity and conciseness, descriptions of features known in the art may be omitted.

[0047] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein, which will become clear after understanding the disclosure of this application.

[0048] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more.

[0049] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions should not be limited by these terms. Instead, these terms are used solely to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, what is referred to as a first member, first component, first region, first layer, or first portion in the examples described herein may also be referred to as a second member, second component, second region, second layer, or second portion without departing from the teachings of the examples.

[0050] In the specification, when an element such as a layer, a region, or a substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present therebetween. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, no other elements may be present therebetween.

[0051] The terms used herein are only used to describe various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "including" and "having" indicate the presence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof. The term "plurality" represents any number of two and more than two.

[0052] The definitions of directional terms such as "top", "bottom" and "below" in this application are all based on the directional definitions when the product is in a normal casting state.

[0053] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art after understanding the present invention. Unless explicitly defined otherwise herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present invention, and should not be interpreted in an idealized or overly formal manner.

[0054] Most of the current lattice towers are steel cylinders, which have an inner cylinder and an outer cylinder sleeved on the outer periphery of the inner cylinder. As the tower height increases, the structural strength of the existing steel cylinder can no longer meet the requirements. Therefore, the relevant technology proposes to pour concrete in the steel cylinder to improve the structural strength of the tower. The specific pouring method is as follows: Figure 1 As shown, a tower section is erected and supported by multiple sets of supports 30a to maintain its upright position. A pouring port 230a is defined at the bottom of the sidewall of the outer tube 20a. This pouring port 230a is connected to the concrete pumping structure via a connecting pipe 60a. An exhaust port 240a is also defined on the sidewall of the outer tube 20a. During pouring, concrete enters the pouring space 210a between the inner tube 10a and the outer tube 20a through the connecting pipe 60a and the pouring port 230a. The concrete is pumped up by the pump and exhausted through the exhaust port 240a. When the concrete rises near the exhaust port 240a, concrete will bubble up from the exhaust port 240a, requiring it to be sealed with fine steel wire. Once the entire tower section is filled with concrete, the top of the tower is manually finished. Once the concrete has hardened, the exposed steel wire at the exhaust port 240a is removed, completing the pouring of that section of the tower. Finally, all tower sections are connected together using the existing connecting flanges 220a at the ends of each tower section to form a complete tower. A lattice tower can include three, four, or even more lattice towers, with multiple lattice towers spaced circumferentially. Steel bars are connected between adjacent lattice towers to form a lattice tower.

[0055] The overall length of the lattice tower is very high. Although the tower is divided into multiple sections, in order to reduce the number of connection points, the height of each section of the tower is also very high, usually higher than 10 meters. This results in a large vertical pressure on the concrete during the jacking process, which can easily cause different degrees of deformation of the tower body. Moreover, the height of the tower section is relatively high, which places high demands on the support system, increases the risk factor, and poses a risk of collapse. In addition, the erection and removal of the support parts are time-consuming and labor-intensive. Moreover, the concrete on the top of the tower section needs to be manually finished, and the flatness is poor. There are also high-altitude operations, which increase the risk factor. In addition, the casting port 230a and the exhaust port 510a are opened on the barrel of the outer barrel 20a, which affects the integrity of the tower. The subsequent cutting of components such as thin steel wires is likely to generate high temperatures, which will affect the mechanical properties of the concrete. In addition, the tower floor also needs to be sealed to prevent bubbling, and the overall cost of tower casting is relatively high. The current tower casting method has the above-mentioned multiple defects. Therefore, it is urgent to propose a new casting method to overcome one or more of the above-mentioned problems.

[0056] Based on this, an embodiment of one aspect of the present invention provides a tower casting tool, which enables the tower to be cast in a horizontal position, can reduce the concrete pumping jacking pressure, and avoid high-altitude operations. Among them, the casting tool can directly cast a section of the tower. After casting multiple sections of the tower, the multiple sections of the tower are connected to form a complete tower. The number and length of the tower sections can be determined according to actual needs. The casting tool can also directly cast a complete tower. The specific casting object can be determined according to the actual length of the tower to ensure the casting effect.

[0057] like Figure 2 and Figure 3 As shown, the casting tooling includes an inner cylinder 10 and an outer cylinder 20. The outer cylinder 20 is sleeved on the outer periphery of the inner cylinder 10, and a casting space is formed between the outer cylinder 20 and the inner cylinder 10. Since the inner cylinder 10 is located inside the outer cylinder 20, for the convenience of explanation, the inner cylinder 10 is Figure 2 and Figure 3 Here, the inner tube 10 and the outer tube 20 can be respectively the outer tube 20 of the inner tube 10 of the lattice tower, both of which are steel tubes. Of course, it can also be used other than as a lattice tower.

[0058] like Figure 2 and Figure 3As shown, the pouring tool also includes a support assembly 30, which is supported on the outer peripheral surface of the outer cylinder 20 after it is tilted, and maintains a set angle between the outer cylinder 20 and the horizontal plane, with the first end of the outer cylinder 20 being lower than the second end of the outer cylinder 20. This makes it convenient to lay down the inner cylinder 10 and the outer cylinder 20 and pour them in a horizontal position. During the pouring process, the concrete does not need to rise vertically for a long distance, and the vertical pressure is small, which can reduce the overall pumping jacking pressure of the concrete and reduce the probability of the tower being squeezed by the concrete and deformed. Moreover, it is beneficial for the support assembly 30 to directly support the tower from below, thereby reducing the requirements for the support system, facilitating the erection and dismantling of the support assembly 30, and reducing the risk of the tower collapsing.

[0059] like Figure 2 、 Figure 3 、 Figure 7 and Figure 10 As shown, the casting tool also includes a first tool flange 40 and a second tool flange 50. The first tool flange 40 is connected to the first end of the outer cylinder 20 and blocks the first end of the casting space. The first tool flange 40 is provided with a casting port 410, which is connected to the casting space. The second tool flange 50 is connected to the second end of the outer cylinder 20 and blocks the second end of the casting space. The second tool flange 50 is provided with an exhaust port 510, which is connected to the casting space.

[0060] Here, the two ends of the pouring space are sealed by the first and second tooling flanges 40 and 50, respectively. Concrete directly contacts the flanges, resulting in smooth end surfaces and eliminating overhead work, reducing safety risks. Furthermore, the tower is no longer required to be placed on the ground, eliminating the need to seal the ground where the tower is placed, thus reducing pouring costs. Furthermore, the pouring port 410 is directly provided on the first tooling flange 40, and the exhaust port 510 is provided on the second tooling flange 50, eliminating the need for openings in the outer tube 20 and preventing any impact on the overall tower structure.

[0061] During the pouring process, the pump uses the concrete delivery pipe 90 to pump concrete to the pouring port 410. The concrete enters the pouring space through the pouring port 410. As the pumping time increases, the concrete gradually rises under the pumping pressure to fill the pouring space in the poured tower, and the exhaust port 510 is used to exhaust and release the pressure. Concrete enters from the pouring port 410 at the lower end and is exhausted from the exhaust port 510 at the higher end, which is conducive to the concrete being lifted and densely filled in the pouring space. After the concrete completely fills the pouring space, the pouring of the tower section is completed, and the first tooling flange 40 and the second tooling flange 50 are removed, and the multiple poured tower sections are connected together to form a complete tower. Among them, the first tooling flange 40 and the second tooling flange 50 can be removed when the concrete is not completely hardened, and the part of the concrete protruding from the pouring port 410 and the exhaust port 510 can be removed, which is convenient for removal.

[0062] After the first tooling flange 40 and the second tooling flange 50 are removed and the casting of a section of the tower is completed, the other sections of the tower that have been cast can be connected to form a complete tower. Figure 2 and Figure 3 As shown, the first end of the outer cylinder 20 has a first connecting flange 210, to which the first tooling flange 40 is connected. The second end of the outer cylinder 20 has a second connecting flange 220, to which the second tooling flange 50 is connected. The design of the first connecting flange 210 and the second connecting flange 220 not only facilitates the installation of the first tooling flange 40 and the second tooling flange 50, but also allows them to be directly used to connect other tower sections after the first tooling flange 40 and the second tooling flange 50 are removed. This simple structure allows for easy assembly and disassembly. Here, the first connecting flange 210 and the second connecting flange 220 can be the existing connecting flanges on the outer cylinder 20, eliminating the need for additional connection structures for the installation of the first tooling flange 40 and the second tooling flange 50, thus simplifying the structure.

[0063] Regarding the specific positions of the pouring port 410 and the exhaust port 510, further, in some embodiments, as Figure 2 、 Figure 3 、 Figure 7 and Figure 10 As shown, the pouring port 410 is positioned near the bottom of the outer cylinder 20, and the exhaust port 510 is positioned near the top of the outer cylinder 20. The top and bottom of the outer cylinder 20 are defined by the orientation of the outer cylinder 20 after it is tilted. Specifically, the pouring port 410 is positioned near the bottom of the first tooling flange 40, and the exhaust port 510 is positioned near the top of the second tooling flange 50. Placing the pouring port 410 as close as possible to the bottom of the outer cylinder 20 facilitates smooth ascent of concrete after entering the pouring space, allowing it to directly rest at the bottom. This allows the concrete at the top and bottom of the pouring space to solidify at approximately the same time, improving the concrete's integrity. Placing the exhaust port 510 as close as possible to the top of the outer cylinder 20 facilitates the concrete overflowing from the exhaust port 510 after nearly filling the pouring space. This allows exhaust to be utilized during the concrete lifting process, facilitating smooth concrete lifting and ensuring that the concrete fills the pouring space densely.

[0064] refer to Figure 1In the related art, the tower section is set upright during pouring, with the pouring port 230a located at the bottom of the side wall of the outer tube 20a. This makes it difficult to lift concrete that enters laterally from the pouring port 230a. Furthermore, the connection structure between the inner tube 10a and the outer tube 20a easily obstructs the concrete, which in turn makes it easy for air to be trapped near the pouring port 230a. Therefore, the exhaust port 240a needs to be located near the pouring port 230a. However, this design makes it easy for the exhaust port 240a to leak during the concrete lifting process. In this case, a thin steel wire needs to be installed at the exhaust port 240a to block it. After pouring is completed, the exposed thin steel wire needs to be removed. This operation is complicated, and the process of removing the thin steel wire can easily affect the mechanical properties of the concrete. In this embodiment, however, the pouring port 410 is located on the first tooling flange 40. The axial direction of the pouring port 410 is aligned with the length of the tilted tower. When the outer tube 20 is tilted, the connection structure between the inner tube 10 and the outer tube 20 is less likely to significantly obstruct the concrete, and air suffocation is less likely to occur near the pouring port 410. Consequently, there is no need to locate the exhaust port 510 near the pouring port 410. Furthermore, the exhaust port 510 is located on the second tooling flange 50 at the second end of the outer tube 20, opposite the first tooling flange 40, allowing for smoother exhaust and facilitating smooth concrete lifting. Furthermore, the high position of the exhaust port 510 eliminates the need for thin steel wire, thus preventing the impact of removing the thin steel wire on the mechanical properties of the concrete.

[0065] Furthermore, in related art, exhaust port 240a is typically very small to avoid compromising tower strength, with a diameter between 2mm and 3mm. However, in this embodiment, the diameter of exhaust port 510 can be larger without compromising tower strength, thereby facilitating exhaust. Specifically, the size of exhaust port 510 can be designed to be two to three times the maximum particle size of the concrete aggregate, facilitating concrete removal and achieving effective exhaust.

[0066] Furthermore, in some embodiments, the height of the collapsed outer cylinder 20 accounts for 20% to 50% of the length of the outer cylinder 20. Here, by using the support assembly 30 to collapse the outer cylinder 20 and the inner cylinder 10 located within it, the overall height is reduced by 50% to 80%. This significantly reduces the concrete's jacking pressure, minimizes the impact on the thin-walled structures of the outer cylinder 20 and inner cylinder 10, and prevents tower deformation. Furthermore, the risks of working at height are eliminated, improving safety. Furthermore, the complex support structure can be eliminated to ensure support stability, simplifying the pouring process.

[0067] Of course, in other embodiments, the height of the outer cylinder 20 after being tilted may be set to 0% to 20% of the length of the outer cylinder 20. By default, when the height is 0%, the outer cylinder 20 is placed horizontally, and this also includes placing the outer cylinder 20 slightly tilted. In specific applications, the casting posture of the outer cylinder 20 can be designed according to actual conditions, for example, the height of the outer cylinder 20 after being tilted may be set to 10%, 25%, 30%, or 40% of the length of the outer cylinder 20.

[0068] Furthermore, the outer cylinder 20 maintains a set angle with the horizontal plane after being tilted, and the set angle ranges from 0° to 45°, such as 5°, 10°, 25° or 30°.

[0069] Regarding the support method of the support assembly 30, in some embodiments, the support assembly 30 supports the outer cylinder 20 from below. Compared with the related art method of connecting multiple sets of support members to the outside of the upright outer cylinder 20 to ensure that the outer cylinder 20 remains in an upright position, this support method has better support stability, does not require a complex calibration process, and is highly secure.

[0070] In some embodiments, the support assembly 30 is disposed below the tilted outer cylinder 20, and the top of the support assembly 30 supports the outer cylinder 20. The support assembly 30 can be directly placed on the ground to support the outer cylinder 20, which is easy to operate.

[0071] In a specific embodiment, Figure 2 and Figure 3 As shown, the support assembly 30 includes at least two brackets spaced apart along the length of the outer cylinder 20. The height of the at least two brackets gradually increases from the first end to the second end of the outer cylinder 20. This facilitates the placement of the outer cylinder 20 on the support assembly 30, with the first end of the outer cylinder 20 lower than the second end. This allows concrete to be injected from the pouring port 410 at the bottom and exhausted from the exhaust port 510 at the top, causing the concrete to rise and densely fill the pouring space. Furthermore, using at least two brackets spaced apart to support the outer cylinder 20 reduces the material used in the support assembly 30, saving costs, and reducing the weight of the support assembly 30 for easier transportation, compared to using a single bracket to support the outer cylinder 20.

[0072] The number of brackets here can be determined according to the length of the outer cylinder 20. Generally, the longer the outer cylinder 20 is, the more brackets there are, and the outer cylinder 20 is supported at multiple points, which has good support stability and prevents deformation of the outer cylinder 20. Figure 2 The support assembly 30 is shown to include two brackets. Figure 3 It is shown that the support assembly 30 includes three brackets, namely a first bracket 310 , a second bracket 320 and a third bracket 330 . Figure 4 、 Figure 5 and Figure 6 Shown respectively Figure 3The longitudinal cross-sectional view of the three brackets is shown in FIG. 3 . The three brackets are distributed in sequence along the length direction of the outer cylinder 20 , and one bracket is higher than the other.

[0073] To improve the support stability, further, as Figure 4 、 Figure 5 and Figure 6 As shown, the upper surface of each bracket has a curved support surface 340 that matches the outer circumference of the outer cylinder 20. The inclination angle of the curved support surface 340 is the same as that of the outer cylinder 20, and the bottom of the outer cylinder 20 is embedded in the curved support surface 340. The curved support surface 340 can effectively limit the rolling displacement of the outer cylinder 20, reducing the chance of the outer cylinder 20 falling off the bracket.

[0074] Furthermore, if Figure 4 、 Figure 5 and Figure 6 As shown, each bracket also includes a base plate 350 and multiple support plates 360 erected on the base plate 350. The tops of the multiple support plates 360 support the curved support surface 340. The design of the base plate 350 facilitates stable placement of the bracket, thereby ensuring stable support of the outer cylinder 20. Compared to a solid bracket, the design of multiple support plates 360 reduces the weight of the bracket while maintaining support strength, facilitating transportation, and reducing material consumption, thus saving costs. Furthermore, the vertical arrangement of the multiple support plates 360 provides excellent load-bearing performance.

[0075] Of course, the structure of the bracket is not limited to this. In other embodiments, the bracket may further include a bottom plate 350 and a plurality of inclined support plates 360, with the plurality of inclined support plates 360 supporting the arcuate support surface 340, or the bracket may include a top arcuate support surface 340 and a plurality of legs below the arcuate support surface 340. There are many possible structures for the bracket, which are not listed here one by one.

[0076] Furthermore, in addition to being positioned below the inverted outer cylinder 20 and supporting the outer cylinder 20 with its top, the support assembly 30 can also, in other embodiments, be positioned in a cloth pocket to enclose the outer cylinder 20. For example, the top of the support assembly 30 can be mounted at a predetermined position above the outer cylinder 20, with the bottom suspended and enclosing the outer cylinder 20. The specific structure and placement of the support assembly 30 can be varied and are not limited to the above embodiment.

[0077] Regarding the specific structures of the first tooling flange 40 and the second tooling flange 50, further, in some embodiments, as Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, the first tooling flange 40 has a first protrusion 420 on the side facing the outer cylinder 20, and the first protrusion 420 is sandwiched between the inner cylinder 10 and the outer cylinder 20. The second tooling flange 50 has a second protrusion 520 on the side facing the outer cylinder 20, and the second protrusion 520 is sandwiched between the inner cylinder 10 and the outer cylinder 20. The first protrusion 420 and the second protrusion 520 can act as a limiter, limiting the distance between the outer cylinder 20 and the inner cylinder 10, preventing relative movement between the two, thereby making the casting space more stable.

[0078] Furthermore, if Figure 7 and Figure 8 As shown, the pouring port 410 is provided on the first protrusion 420 and is connected to the pouring space. Figure 10 and Figure 11 As shown, the exhaust port 510 is provided on the second protrusion 520 and communicates with the pouring space.

[0079] Furthermore, the first protrusion 420 and the second protrusion 520 are both annular protrusions, or the first protrusion 420 and the second protrusion 520 are spaced apart along the circumference of the outer cylinder 20. The first protrusion 420 and the second protrusion 520 are circumferentially supported between the inner cylinder 10 and the outer cylinder 20, which helps to maintain a set distance between the inner cylinder 10 and the outer cylinder 20.

[0080] In a specific application, the outer wall of the first protrusion 420 is tightly fitted with the inner wall of the outer tube 20, and the inner wall of the first protrusion 420 is tightly fitted with the outer wall of the inner tube 10. The outer wall of the second protrusion 520 is tightly fitted with the inner wall of the outer tube 20, and the inner wall of the second protrusion 520 is tightly fitted with the outer wall of the inner tube 10.

[0081] Furthermore, in some embodiments, Figure 13 As shown, the pouring tool further includes: a connecting pipe 60, one end of which is connected to the first tool flange 40 and communicates with the pouring port 410, and the other end of which is used to connect to the concrete delivery pipe 90; and a check valve 70 provided on the connecting pipe 60. Here, the pumped concrete enters the pouring port 410 through the connecting pipe 60. Because the connecting pipe 60 has the check valve 70, after the pouring space is filled with concrete, the connecting pipe 60 can be sealed with the check valve 70 before the pump is disconnected. This prevents concrete from flowing out of the connecting pipe 60 and affecting the compactness of the concrete in the pouring space.

[0082] In some embodiments, as Figure 13 and Figure 14As shown, the connecting pipe 60 includes a first section connecting pipe 610 and a second section connecting pipe 620 that are detachably connected, and the first section connecting pipe 610 is connected between the first tooling flange 40 and the second section connecting pipe 620; the check valve 70 is arranged at the connection between the first section connecting pipe 610 and the second section connecting pipe 620, and is used to seal the first section connecting pipe 610 after pouring is completed.

[0083] In these embodiments, the connecting pipe 60 comprises two sections. This not only facilitates the assembly of the check valve 70, but also allows for easier installation during the pouring process. Once the concrete has filled the pouring space, the first section of the connecting pipe 610 can be sealed with the check valve 70. The second section of the connecting pipe 620, located away from the outer cylinder 20, can then be removed, disengaging the pumping assembly. Before the concrete has fully hardened, the first section of the connecting pipe 610 can be removed along with the first tooling flange 40 to remove excess concrete. Compared to a longer, integrated connecting pipe 60, the ability to remove a portion of the connecting pipe 60 first reduces the weight of the connecting pipe 60 and the concrete within, reducing the load and facilitating stable support for the support assembly 30. Furthermore, when the concrete has not fully hardened, only the shorter first section of the connecting pipe 610 can be removed simultaneously with the first tooling flange 40, making removal easier and facilitating separation from the concrete.

[0084] Of course, the connecting pipe 60 may include not only the first connecting pipe 610 and the second connecting pipe 620, but also a third connecting pipe 630, or even a fourth and a fifth connecting pipe. Figure 13 As shown, the connecting pipe 60 includes a first connecting pipe section 610, a second connecting pipe section 620, and a third connecting pipe section 630. The third connecting pipe section 630 is connected to the second connecting pipe section 620. The pump is connected to the third connecting pipe section 630 via the concrete delivery pipe 90. Concrete then flows sequentially through the concrete delivery pipe 90, the third connecting pipe section 630, the second connecting pipe section 620, and the first connecting pipe section 610 into the pouring port 410. After pouring is completed, the third connecting pipe section 630 can be removed first, followed by the second connecting pipe section 620, and finally the first connecting pipe section 610 and the first tooling flange 40.

[0085] Regarding the connection method between the first connecting pipe 610 and the first tooling flange 40, further, as Figure 13 As shown, the first connecting pipe section 610 is welded to the first tooling flange 40. A plurality of reinforcing ribs 612 are provided on the outer periphery of the first connecting pipe section 610, and the plurality of reinforcing ribs 612 are connected to the first tooling flange 40. This secure connection prevents the heavy concrete from separating from the first tooling flange 40 after the connecting pipe 60 is filled.

[0086] Regarding the connection method of the first section connecting pipe 610 and the second section connecting pipe 620, further, as Figure 13 and Figure 14As shown, one end of the first connecting pipe section 610 has a first flange 611, and one end of the second connecting pipe section 620 has a second flange 621. The first flange 611 and the second flange 621 are butt-jointed. The check valve 70 includes a valve plate 710, which is sandwiched between the first flange 611 and the second flange 621. The valve plate 710 can be inserted between the first connecting pipe section 610 and the second connecting pipe section 620. The two connecting pipe sections 60 are butt-jointed using flanges, ensuring a secure connection.

[0087] Of course, when the connecting pipe 60 further includes a third connecting pipe section 630 , the third connecting pipe section 630 and the second connecting pipe section 620 may also be connected by a flange.

[0088] As an example, Figure 15 As shown, the second flange 621 has a through hole for connecting the first connecting pipe 610 and the second connecting pipe 620, and six mounting holes are also provided on the periphery of the through hole. The first flange 611 and the second flange 621 have similar structures, and bolts are connected through the six mounting holes.

[0089] Of course, the first flange 611 and the second flange 621 are not limited to the above examples. For example, the first flange 611 and the second flange 621 may be circular, and the number of mounting holes may not be six, but more or less.

[0090] As an example, Figure 14 、 Figure 15 and Figure 17 As shown, the valve plate 710 is generally in the shape of an elongated strip, with the top of the valve plate 710 being higher than the first flange 611 and the second flange 621, making it convenient for the user to press down on the valve plate 710 to seal the first section of the connecting pipe 610. The valve plate 710 is also provided with a through hole for communicating between the first section of the connecting pipe 610 and the second section of the connecting pipe 620. When unblocked, the position of the through hole is relative to the positions of the through holes on the two flanges, and they are in communication with each other. When it is necessary to block the first section of the connecting pipe 610, the valve plate 710 moves downward, and the through hole moves downward, and the portion of the valve plate 710 above the through hole blocks the first section of the connecting pipe 610.

[0091] Of course, the structure of the valve plate 710 is not limited to the above example. For example, the valve plate 710 can also be square or rectangular. In addition to moving downward, the valve plate 710 can also move horizontally to block the first section of the connecting pipe 610.

[0092] As an example, Figure 14 and Figure 16As shown, the check valve 70 also includes two rubber gaskets 720, one of which is sandwiched between the valve plate 710 and the first flange 611, and the other between the valve plate 710 and the second flange 621. The design of the rubber gaskets 720, on the one hand, can seal the gap between the flange and the valve plate 710, preventing concrete from flowing out through the gap. On the other hand, due to the elasticity of the rubber gaskets 720, the valve disc is clamped between the two rubber gaskets 720 with a certain amount of play, making it easy to apply external force to move the valve plate 710, thereby sealing the first section of the connecting pipe 610. Furthermore, the structure of the rubber gasket 720 can be similar to that of the flange, also having a through hole for concrete to pass through and a mounting hole, facilitating the insertion of bolts through the rubber gasket 720 to connect the flange.

[0093] Furthermore, in some embodiments, Figure 2 、 Figure 3 and Figure 18 As shown, the casting tool further includes: an exhaust pipe 80 , one end of which is fixed to the second tool flange 50 and communicates with the exhaust port 510 , and the other end of the exhaust pipe 80 is higher than the second end of the outer cylinder 20 .

[0094] During the concrete pouring process, after concrete pumping stops, the concrete tends to settle a certain distance due to hardening. This can cause the concrete that originally filled the pouring space to leave certain gaps due to settlement, affecting the pouring effect. Therefore, in these embodiments, an exhaust pipe 80 is connected to the exhaust port 510, and the outlet end of the exhaust pipe 80 is designed to be higher than the second end of the outer cylinder 20. During the concrete pouring process, concrete can enter the exhaust pipe 80 and overflow from the second end of the exhaust pipe 80 or is about to overflow. After concrete pumping is stopped, the concrete in the exhaust port will be higher than the concrete in the pouring space. The concrete in the exhaust pipe 80 can exert a certain squeezing force on the concrete in the pouring space under the action of gravity, and has a tendency to flow back into the pouring space. Therefore, even as the concrete hardens, the concrete in the pouring space will be filled with the backflowing concrete and hardened densely under the action of the squeezing force, resulting in a good pouring effect and effectively preventing concrete settlement from causing the concrete in the pouring space to be less dense.

[0095] In some embodiments, as Figure 18 As shown, the exhaust pipe 80 includes a first section of the exhaust pipe 810 and a second section of the exhaust pipe 820 that are detachably connected. The first section of the exhaust pipe 810 is connected between the second tooling flange 50 and the second section of the exhaust pipe 820 .

[0096] In these embodiments, the exhaust pipe 80 comprises two sections. During the pouring process, after concrete pumping stops, the second section of the exhaust pipe 820, located away from the outer cylinder 20, can be removed first. Before the concrete has fully hardened, the first section of the exhaust pipe 810 can be removed along with the second tooling flange 50 to remove excess concrete. Compared to using a longer, integrated exhaust pipe 80, the ability to remove a portion of the exhaust pipe 80 first reduces the weight of the exhaust pipe 80 and the concrete within, reducing the load and facilitating stable support for the support assembly 30. Furthermore, when the concrete has not fully hardened, only the shorter first section of the exhaust pipe 810 can be removed simultaneously with the second tooling flange 50, making removal easier and facilitating separation from the concrete.

[0097] Of course, the exhaust pipe 80 may include not only the first section 810 and the second section 820, but also a third section, or even a fourth and fifth section. The exhaust pipe 80 may be disassembled in sections or assembled at will to form an exhaust pipe 80 of a suitable length as needed.

[0098] Regarding the connection between the first exhaust pipe section 810 and the second tooling flange 50, the first exhaust pipe section 810 is further welded to the second tooling flange 50. The connection is firm, which can prevent the heavy concrete from separating from the second tooling flange 50 after filling the exhaust pipe 80.

[0099] Regarding the connection method of the first section exhaust pipe 810 and the second section exhaust pipe 820, further, as Figure 18 and Figure 19 As shown, a third flange 811 is provided on the first exhaust pipe section 810, and a fourth flange is provided on the second exhaust pipe section 820. The first exhaust pipe section 810 and the second exhaust pipe section 820 are connected together through the third flange 811 and the fourth flange. The connection is firm and convenient.

[0100] Of course, when the exhaust pipe 80 further includes a third section of the exhaust pipe, the third section of the exhaust pipe and the second section of the exhaust pipe 820 may also be connected by a flange.

[0101] The shapes of the third flange 811 and the fourth flange can be the same as or similar to the first flange 611 and the second flange 621 , and are not specifically limited here.

[0102] The following is a detailed description of a casting tool for a lattice tower according to an embodiment of the present invention. The lattice tower includes multiple tower sections of equal or different lengths, and the casting of one of the tower sections is used as an example for description.

[0103] The tower section includes an outer tube 20 and an inner tube 10 , and a casting space is formed between the outer tube 20 and the inner tube 10 .

[0104] refer to Figure 3 The tower section is tilted, with the support assembly 30 supporting the tilted tower section from below, allowing the tower section to be poured in a horizontal position. Specifically, a pouring port 410 is provided on the first tooling flange 40 at the lower end, and an exhaust port 510 is provided on the second tooling flange 50 at the upper end. The tooling flanges are connected to the existing connection flanges of the tower section, sealing the ends. Concrete is poured from the lower end, while exhaust is released from the upper end, causing the concrete to rise and densely fill the pouring space.

[0105] Figures 4 to 6 The three brackets of the support assembly 30 are shown respectively, which are the first bracket 310, the second bracket 320 and the third bracket 330 from short to tall. The arc-shaped steel plate serves as the arc-shaped support surface 340, the bottom plate 350 is a flat steel plate, and the support plate 360 ​​is made of steel plate. The steel plate is vertically connected to the arc-shaped steel plate and the flat steel plate. The diameter of the arc-shaped steel plate is adjusted according to the outer diameter of the tower section to ensure that the tower section and the arc-shaped steel plate are tightly fitted and stable.

[0106] Figures 7 to 9 The first tooling flange 40 is shown, which is matched with the existing first connecting flange 210 and has a pouring port 410. Figures 10 to 12 The second tooling flange 50 is shown, which is also processed in conjunction with the existing second connecting flange 220. The second tooling flange 50 is provided with an exhaust port 510. The two tooling flanges are provided with protrusions corresponding to the tower tube interlayer part, that is, the part corresponding to the casting space, and are embedded between the inner and outer tubes 20.

[0107] Figure 13 and Figure 18 The casting connection section and the exhaust connection section are shown separately. The casting connection section includes a connecting pipe 60, one end of which is welded to the first tooling flange 40 and secured with reinforcing ribs 612. The diameter of the connecting pipe 60 is adjusted to the diameter of the concrete delivery pipe 90. The exhaust connection section includes an exhaust pipe 80, one end of which is also welded to the second tooling flange 50. The highest end of the exhaust pipe 80 is slightly higher than the highest point of the tower section, and a protrusion is provided corresponding to the interlayer of the tower section, which is embedded between the inner and outer tubes 20. After the tooling is welded and tightened, the concrete can be poured horizontally by jacking and pumping.

[0108] Both the connecting pipe 60 and the exhaust pipe 80 are divided into multiple sections, connected by flanges. This allows for removal of sections after the concrete has initially set, before the concrete has developed sufficient strength, making cleaning easier. A wedge-type check valve 70 is embedded in the connecting pipe 60. Once the concrete is poured, the check plate can be wedged in, allowing the pump pipe to be removed and the next section poured, making the process easier.

[0109] This pouring tooling can be designed based on the dimensions of the tower section's inner and outer tubes 10 and 20, as well as the existing connecting flange structure. The dimensions of the pouring port 410 and connecting pipe 60 can be tailored to the actual dimensions of the concrete delivery pipe 90, facilitating installation. The exhaust port 510 can be designed to be 2-3 times the maximum aggregate diameter for uniform concrete discharge. The outlet of the exhaust port 510 is positioned slightly above the highest point of the tower section to prevent concrete settling, which could result in loose tower concrete filling.

[0110] The tower casting fixture proposed in this embodiment utilizes a curved support surface 340 with a height difference to flatten the tower segment, reducing the overall height by 50-80%, avoiding the problem of working at height and mitigating safety risks. This also reduces the vertical height difference, lowering the overall concrete pumping pressure and improving the stability of the thin-walled steel tube. Furthermore, it eliminates the need for calibrating complex support and stabilization structures. The tower segment is enclosed by fixture flanges, with a pouring port 410 and an exhaust port 510 respectively provided on the two fixture flanges, preventing damage to the tube body and ensuring its integrity. Furthermore, the fixture flanges enclose both ends of the tower segment, facilitating the dimensional determination of the concrete at the end, avoiding the problem of poor surface flatness caused by manual finishing, facilitating the smoothing of the concrete on the tower end, and effectively controlling dimensional deviations. Furthermore, a large-diameter exhaust port can be provided on the second fixture flange 50, which helps reduce pumping pressure and exhaust. Furthermore, this casting fixture is easy to use and can be fabricated once the dimensions of the tower segment and the existing flange are determined. It offers advantages such as low cost, simple setup, and safety and reliability. The overall structure is simple, easy to process and install. The pumping pressure is low, suitable for thin-walled structures with large aspect ratios, and the concrete end surface does not require much additional finishing.

[0111] Although the embodiments of the present invention have been described in detail above, those skilled in the art may make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the present invention. It should be understood that, in the opinion of those skilled in the art, such modifications and variations will still fall within the spirit and scope of the embodiments of the present invention as defined in the claims.

Claims

1. A tower casting tool, characterized in that: The pouring tooling comprises: An inner cylinder (10) and an outer cylinder (20), wherein the outer cylinder (20) is sleeved on the outer circumference of the inner cylinder (10), and a casting space is formed between the outer cylinder (20) and the inner cylinder (10); a supporting assembly (30) supporting the outer peripheral surface of the outer cylinder (20) after being tilted, and maintaining a set angle between the outer cylinder (20) and a horizontal plane, wherein the first end of the outer cylinder (20) is lower than the second end of the outer cylinder (20); a first tooling flange (40) connected to the first end of the outer cylinder (20) and sealing the first end of the pouring space; a pouring port (410) is provided on the first tooling flange (40), and the pouring port (410) is communicated with the pouring space; A second tooling flange (50) is connected to the second end of the outer cylinder (20) and blocks the second end of the casting space. An exhaust port (510) is provided on the second tooling flange (50), and the exhaust port (510) is communicated with the casting space.

2. The pouring tool according to claim 1, characterized in that: The pouring port (410) is arranged close to the bottom of the outer cylinder (20), and the exhaust port (510) is arranged close to the top of the outer cylinder (20).

3. The pouring tool according to claim 1, characterized in that: The first end of the outer cylinder (20) has a first connecting flange (210), and the first tooling flange (40) is connected to the first connecting flange (210); The second end of the outer cylinder (20) has a second connecting flange (220), and the second tooling flange (50) is connected to the second connecting flange (220).

4. The pouring tool according to any one of claims 1 to 3, characterized in that: The support assembly is arranged below the outer cylinder (20) after being tilted, and supports the outer cylinder (20) from below.

5. The pouring tool according to claim 4, characterized in that: The support assembly (30) comprises at least two brackets spaced apart along the length direction of the outer cylinder (20), and the heights of the at least two brackets gradually increase from the first end of the outer cylinder (20) to the second end of the outer cylinder (20).

6. The pouring tool according to any one of claims 1 to 3, characterized in that: The first tooling flange (40) has a first protrusion (420) on a side facing the outer cylinder (20), and the first protrusion (420) is sandwiched between the inner cylinder (10) and the outer cylinder (20); The second tooling flange (50) has a second protruding portion (520) on a side facing the outer cylinder (20), and the second protruding portion (520) is sandwiched between the inner cylinder (10) and the outer cylinder (20).

7. The pouring tool according to claim 6, characterized in that: The first protrusion (420) and the second protrusion (520) are both annular protrusions, or the first protrusion (420) and the second protrusion (520) are both spaced apart along the circumference of the outer cylinder (20).

8. The pouring tool according to any one of claims 1 to 3, characterized in that: The pouring tool also includes: a connecting pipe (60), one end of which is connected to the first tooling flange (40) and communicates with the pouring port (410), and the other end of which is used to connect to a concrete delivery pipe (90); A check valve (70) is provided on the connecting pipe (60).

9. The pouring tool according to claim 8, characterized in that: The connecting pipe (60) comprises a first connecting pipe section (610) and a second connecting pipe section (620) that are detachably connected, wherein the first connecting pipe section (610) is connected between the first tooling flange (40) and the second connecting pipe section (620); The check valve (70) is provided at the connection between the first section connecting pipe (610) and the second section connecting pipe (620) and is used to seal the first section connecting pipe (610) after pouring is completed.

10. The pouring tool according to claim 9, characterized in that: One end of the first connecting pipe (610) has a first flange (611), and one end of the second connecting pipe (620) has a second flange (621), and the first flange (611) and the second flange (621) are butt-connected; The check valve (70) includes a valve plate (710), which is sandwiched between the first flange (611) and the second flange (621). The valve plate (710) can be inserted between the first section of the connecting pipe (610) and the second section of the connecting pipe (620).

11. The pouring tool according to claim 9, characterized in that: The first section of the connecting pipe (610) is welded to the first tooling flange (40); and / or A plurality of reinforcing ribs (612) are provided on the outer periphery of the first section connecting pipe (610), and the plurality of reinforcing ribs (612) are connected to the first tooling flange (40).

12. The pouring tool according to any one of claims 1 to 3, characterized in that: The pouring tool also includes: An exhaust pipe (80), one end of which is fixed on the second tooling flange (50) and communicates with the exhaust port (510), and the other end of which is higher than the second end of the outer cylinder (20).

13. The pouring tool according to claim 12, characterized in that: The exhaust pipe (80) comprises a first exhaust pipe section (810) and a second exhaust pipe section (820) that are detachably connected, and the first exhaust pipe section (810) is connected between the second tooling flange (50) and the second exhaust pipe section (820).

14. The pouring tool according to any one of claims 1 to 3, characterized in that: The height of the outer cylinder (20) after being tilted accounts for 20% to 50% of the length of the outer cylinder (20); and / or The tower is a lattice tower, and the inner cylinder (10) and the outer cylinder (20) are both steel cylinders.

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