Prefabricated tower end template

Abstract

The present invention discloses an end face template of a prefabricated tower, comprising: an end panel, a sizing assembly, and a bellows positioning strip, wherein the end panel has a positioning center point, the end panel is used to limit the top surface or bottom surface of a casting cavity, and the casting cavity is annular or sheet-shaped to cast a concrete tower or concrete tower piece; the sizing assembly comprises a plurality of sizing strips, and the plurality of sizing strips comprise an inner sizing strip and an outer sizing strip, wherein the inner sizing strip is located on a side of the casting cavity close to the positioning center point, and the outer sizing strip is located on a side of the casting cavity far from the positioning center point, and the inner sizing strip and the outer sizing strip are respectively located on both sides of the casting cavity in the thickness direction; the bellows positioning strip is arranged on the end panel and is located between the inner sizing strip and the outer sizing strip. The present invention enables a plurality of concrete towers or concrete tower pieces to be cast by the same end face template, effectively reduces the number of molds when casting of prefabricated towers of multiple sizes is required, and a set of molds can produce towers or tower pieces of multiple sizes.

Description

Technical Field

[0001] The invention relates to the technical field of tower construction equipment, and in particular to an end face template of a prefabricated tower. Background Art

[0002] As the efficiency of wind turbine power generation increases, the length of blades is getting longer and longer, and the height and cross-sectional size of the wind turbine towers that match them are also increasing. Steel structure towers are difficult to meet the construction requirements of large cross-sectional high towers due to their high cost and difficulty in transportation. Precast concrete towers can economically build large wind turbines. During the construction of concrete towers, individual towers are hoisted from bottom to top in sequence, and finally a complete concrete tower is built. Therefore, the concrete tower needs to be cast from multiple molds. However, there are many types of existing casting molds, and the same mold cannot adapt to the casting of multiple towers or tower segments. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an end face template of a prefabricated tower tube to solve the problem that there are too many existing tower tube casting molds and the same mold cannot be used for casting multiple tower tubes or tower segments.

[0004] According to an embodiment of the present invention, an end face template of a prefabricated tower tube comprises: an end panel having a positioning center point, the end panel being used to define the top surface or the bottom surface of a casting cavity, the casting cavity being annular or sheet-shaped for casting a concrete tower tube or a concrete tower sheet; a sizing component, the sizing component comprising a plurality of sizing strips, the plurality of sizing strips comprising an inner sizing strip and an outer sizing strip, the inner sizing strip being located on a side of the casting cavity adjacent to the positioning center point, the outer sizing strip being located on a side of the casting cavity away from the positioning center point, the inner sizing strip and the outer sizing strip being respectively located on both sides of the casting cavity in a thickness direction to respectively position the inner template and the outer template of the casting cavity; and a bellows positioning strip, the bellows positioning strip being arranged on the end panel and between the inner sizing strip and the outer sizing strip.

[0005] The end face formwork of the prefabricated tower according to the embodiment of the present invention, by providing a sizing assembly including a plurality of sizing strips, can enable the end panel to position a plurality of groups of inner and outer formworks of different radii, thereby defining casting cavities of different sizes, so that a plurality of concrete towers or concrete tower segments can be cast by the same end face formwork, effectively reducing the number of molds when casting of prefabricated towers of multiple sizes is required, so that a set of molds can produce towers or tower segments of multiple sizes.

[0006] In some embodiments, the inner sizing strips are divided into multiple groups, each group of the inner sizing strips includes at least one inner sizing strip, and the curvatures of the inner sizing strips in different groups are different. The inner sizing strips with larger curvatures are closer to the positioning center point; the outer sizing strips are divided into multiple groups, each group of the outer sizing strips includes at least one outer sizing strip, and the curvatures of the outer sizing strips in different groups are different. The outer sizing strips with larger curvatures are closer to the positioning center point; each group of the inner sizing strips corresponds to one group of the outer sizing strips, and the radii of the casting cavity defined by different groups of the inner sizing strips and the outer sizing strips are different.

[0007] Further, the sizing assembly is matched on the end panel via a locking assembly, different groups of the inner sizing strips are replaceably arranged on the end panel, and different groups of the outer sizing strips are replaceably arranged on the end panel.

[0008] Furthermore, the locking assembly includes: an inner locking portion, which is detachably connected to the end panel and cooperates with the inner sizing strip; and an outer locking portion, which is detachably connected to the end panel and cooperates with the outer sizing strip.

[0009] Furthermore, the end panel is provided with a plurality of locking holes, and the inner locking portion and the outer locking portion are both penetrated through the locking holes to respectively lock the inner sizing strip and the outer sizing strip.

[0010] Furthermore, the end panel is provided with a plurality of circles of the positioning holes, the distances between the plurality of the positioning holes in each circle and the positioning center point are equal, and the distances between the positioning holes in different circles and the positioning center point are different.

[0011] In some embodiments, the inner retaining portion stops at a side of the inner sizing strip adjacent to the central positioning point, and the outer retaining portion stops at a side of the outer sizing strip away from the central positioning point.

[0012] In some embodiments, each of the sizing strips is formed into a box shape that is open at the top and open on both sides of the length, and the positioning strip is provided with a plurality of reinforcing ribs that are spaced apart and distributed along the length direction.

[0013] In some embodiments, the bellows positioning strip is detachably connected to the end panel.

[0014] In some embodiments, the bellows positioning strips are divided into multiple groups, and the bellows positioning strips in different groups have different curvatures. The bellows positioning strips with larger curvatures are closer to the inner sizing strips.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the end face template in an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A local enlarged schematic diagram of location I;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the bellows positioning strip in an embodiment of the present invention.

[0020] Reference numerals:

[0021] End template 100,

[0022] End panel 10,

[0023] Positioning center point 11, positioning hole 12,

[0024] Sizing component 20,

[0025] Sizing strip 21, inner sizing strip 211, outer sizing strip 212, reinforcing rib 213,

[0026] Bellows positioning strip 30,

[0027] Round hole 31,

[0028] Card position component 40,

[0029] The inner locking portion 41, the outer locking portion 42,

[0030] Positioning cone 50. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it is necessary to understand that the terms "center", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Combine the following Figures 1 to 3 An end face formwork 100 of a prefabricated tower according to an embodiment of the present invention is described.

[0036] like Figure 1 As shown, an end face template 100 of a prefabricated tower according to an embodiment of the present invention includes: an end panel 10, a sizing component 20, and a bellows positioning strip 30.

[0037] The end panel 10 has a positioning center point 11, and the end panel 10 is used to define the top surface or the bottom surface of the casting cavity. The casting cavity is annular or sheet-shaped for casting a concrete tower tube or a concrete tower sheet.

[0038] The sizing assembly 20 includes a plurality of sizing strips 21, and the plurality of sizing strips 21 include an inner sizing strip 211 and an outer sizing strip 212. The inner sizing strip 211 is located on a side of the casting cavity that is close to the positioning center point 11, and the outer sizing strip 212 is located on a side of the casting cavity that is away from the positioning center point 11. The inner sizing strip 211 and the outer sizing strip 212 are respectively located on both sides of the casting cavity in the thickness direction to respectively position the inner template and the outer template of the casting cavity. That is, when the casting cavity is constructed on the end panel 10, the inner template is positioned on the inner sizing strip 211, and the outer template is positioned on the outer sizing strip 212, so that the inner template and the outer template can define the two side walls of the casting cavity. Moreover, since the sizing component 20 includes multiple sizing strips 21, the end face template 100 can cooperate with multiple sets of inner templates and outer templates to construct a variety of casting molds, forming casting cavities with different radii, thereby meeting the production of various concrete towers or concrete tower segments.

[0039] The bellows positioning strip 30 is arranged on the end panel 10 and is located between the inner sizing strip 211 and the outer sizing strip 212. Since the total tower needs to be stacked by multiple concrete towers or concrete tower segments, prestressed cables (such as steel bars) are needed to tighten each tower or tower segment during the stacking process. Therefore, a prestressed channel should be reserved in the middle of the tower or tower segment during pouring for passing the prestressed cables. Generally, it is necessary to pre-place a bellows in the pouring cavity so that the prestressed cables can be passed through the bellows after pouring. In this way, the bellows can be positioned in the pouring cavity through the bellows positioning strip 30.

[0040] According to the end face formwork 100 of the prefabricated tower according to the embodiment of the present invention, by providing a sizing component 20 including a plurality of sizing strips 21, the end panel 10 can be positioned with a plurality of groups of inner and outer formworks of different radii, thereby defining different types of casting cavities, so that a plurality of concrete towers or concrete tower segments can be cast by the same end face formwork 100, effectively reducing the types of molds, and a set of molds can be adapted to a plurality of towers or tower segments.

[0041] In some embodiments, there are multiple groups of inner sizing strips 211, and each group of inner sizing strips 211 includes at least one inner sizing strip 211. For example, there is one inner sizing strip 211 and it may be circular. In this case, the inner template defining the side wall of the casting cavity may be matched with the circular inner sizing strip 211. There are multiple inner sizing strips 211 and they may be arranged at intervals along the circumferential direction. In this case, the inner template may be matched with multiple inner sizing strips 211 to also play a positioning role. In addition, this method can save the material of the inner sizing strips 211 and reduce the cost. The curvatures of different groups of inner sizing strips 211 are different. The inner sizing strips 211 with larger curvatures are closer to the positioning center point 11. That is, the inner sizing strips 211 with smaller radius are arranged closer to the positioning center point 11, and the inner sizing strips 211 with larger radius are arranged farther away from the positioning center point 11.

[0042] There are multiple groups of outer sizing strips 212, and each group of outer sizing strips 212 includes at least one outer sizing strip 212. For example, the outer sizing strip 212 can be one and circular. In this case, the outer template defining the side wall of the casting cavity can be matched with the circular outer sizing strip 212; the outer sizing strip 212 can also be multiple and spaced apart along the circumferential direction. In this case, the inner template can also play a positioning role by matching multiple outer sizing strips 212. In addition, this method can save the material of the outer sizing strips 212 and reduce costs. Different groups of outer sizing strips 212 have different curvatures. The outer sizing strips 212 with larger curvatures are closer to the positioning center point 11. In other words, the outer sizing strips 212 with smaller radius are arranged close to the positioning center point 11, and the outer sizing strips 212 with larger radius are arranged away from the positioning center point 11.

[0043] Each group of inner sizing strips 211 corresponds to a group of outer sizing strips 212, and the radius of the casting cavity defined by different groups of inner sizing strips 211 and outer sizing strips 212 is different. Combined with the structure of the tower, it can be seen that the tower is a conical structure in appearance, and the radius of the tower is smaller as it goes up. Therefore, it is necessary to cast multiple sections of concrete towers and splice them into a total tower, and the radius of each section of the concrete tower is different. In this way, casting cavities with different radii can be defined by different groups of inner sizing strips 211 and outer sizing strips 212, so as to cast concrete towers or concrete tower pieces with different radii.

[0044] It is worth noting that in other embodiments, the same group of inner sizing strips 211 can be matched one-to-one with different groups of outer sizing strips 212, so that after installing the inner formwork and the outer formwork, casting cavities with different wall thicknesses can be obtained, and concrete tower tubes or concrete tower segments with different wall thicknesses can be obtained after casting, thereby meeting the casting of tower tubes of different specifications.

[0045] In other embodiments, there are multiple groups of inner sizing strips 211, each group of inner sizing strips 211 includes at least one inner sizing strip 211, for example, there is one inner sizing strip 211, so that whether a concrete tower tube or a concrete tower sheet is constructed, the inner template constituting the side wall of the casting cavity can be matched on the inner sizing strip 211; the inner sizing strips 211 can also be multiple and spaced apart in the circumferential direction, and the inner template can be positioned on the end panel 10 by multiple inner sizing strips 211, and this method is more material-saving. Different groups of inner sizing strips 211 have different lengths, for example, the inner sizing strips 211 with a larger length are farther from the positioning center point 11, while the inner sizing strips 211 with a smaller length are closer to the positioning center point 11, and this method is conducive to reasonable space placement, so that multiple groups of inner sizing strips 211 of different specifications are arranged at different positions of the end panel 10.

[0046] There are multiple groups of outer sizing strips 212, each group of outer sizing strips 212 includes at least one outer sizing strip 212, for example, there is one outer sizing strip 212, so that whether it is a concrete tower tube or a concrete tower piece, the inner template constituting the side wall of the casting cavity can be matched on the outer sizing strip 212; the outer sizing strips 212 can also be multiple and spaced apart along the circumferential direction, and the inner template can be positioned on the end panel 10 by multiple outer sizing strips 212, and this method is more material-saving. Different groups of outer sizing strips 212 have different lengths, for example, the inner sizing strip 211 with a larger length is farther from the positioning center point 11, and the outer sizing strip 212 with a smaller length is closer to the positioning center point 11, so this method is conducive to reasonable space placement, so that multiple groups of outer sizing strips 212 of different specifications are arranged at different positions of the end panel 10.

[0047] Each group of inner sizing strips 211 corresponds to a group of outer sizing strips 212, and the circumferences of the casting cavities defined by different groups of inner sizing strips 211 and outer sizing strips 212 are different. In combination with the structure of the tower, it can be seen that the tower is a conical structure in appearance, and the circumference of the tower decreases as it goes up. Therefore, it is necessary to cast multiple sections of concrete towers and splice them into a total tower, and the circumference of each section of the concrete tower is different. In this way, casting cavities with different circumferences can be defined by different groups of inner sizing strips 211 and outer sizing strips 212, thereby casting concrete towers with different circumferences. Since the side walls of the tower are circular, the circumference of the inner wall of the tower is shorter than that of the outer wall.

[0048] Furthermore, if Figure 1As shown, the sizing assembly 20 is matched with the end panel 10 through the clamping assembly 40, and different groups of inner sizing strips 211 are replaceably arranged on the end panel 10, and different groups of outer sizing strips 212 are replaceably arranged on the end panel 10. In this way, when the inner sizing strip 211 is damaged or damaged after long-term use, it can be removed and replaced with a new inner sizing strip 211 for continued use; similarly, when the outer sizing strip 212 is damaged or damaged after long-term use, it can also be removed and replaced with a new outer sizing strip 212 for continued use, so that the service life of the end face template 100 can be extended by the replaceable inner sizing strip 211 and the outer sizing strip 212. In addition, only a group of inner sizing strips 211 and outer sizing strips 212 required can be retained, and the inner sizing strips 211 and outer sizing strips 212 of other groups can be removed, which is conducive to the pouring of concrete tower tubes or concrete tower pieces.

[0049] Furthermore, if Figure 1 , Figure 2 As shown, the clamping assembly 40 includes: an inner clamping portion 41 and an outer clamping portion 42. The inner clamping portion 41 is detachably connected to the end panel 10, and the inner clamping portion 41 is matched with the inner sizing strip 211. The outer clamping portion 42 is detachably connected to the end panel 10, and the outer clamping portion 42 is matched with the outer sizing strip 212. In other words, the inner clamping portion 41 is connected to the end panel 10 to clamp the inner sizing strip 211 and fix the inner sizing strip 211, and by removing the inner clamping portion 41 from the end panel 10, the inner sizing strip 211 can be replaced. Similarly, the outer clamping portion 42 is connected to the end panel 10 to clamp the outer sizing strip 212 and fix the outer sizing strip 212, and by removing the outer clamping portion 42 from the end panel 10, the outer sizing strip 212 can be replaced. The clamping assembly 40 is simple to operate and easy to use, and can realize the rapid replacement of the inner sizing strip 211 and the outer sizing strip 212 .

[0050] Furthermore, if Figure 1 , Figure 2As shown, the end panel 10 is provided with a plurality of positioning holes 12. By setting the positioning holes 12 to be a plurality, the fixation of the inner sizing strip 211 and the outer sizing strip 212 can be enhanced by increasing the number of the inner positioning parts 41 and the outer positioning parts 42. For example, the inner sizing strip 211 corresponds to a plurality of positioning holes 12, and the inner sizing strip 211 can be firmly fixed by installing a plurality of inner positioning parts 41; the outer sizing strip 212 can correspond to a plurality of positioning holes 12, and the outer sizing strip 212 can be firmly fixed by installing a plurality of outer positioning parts 42. The inner positioning parts 41 and the outer positioning parts 42 are both arranged on the positioning holes 12 to respectively position the inner sizing strip 211 and the outer sizing strip 212, so that the inner positioning parts 41 and the outer positioning parts 42 can be detachable by cooperating with the positioning holes 12.

[0051] Furthermore, the end panel 10 is provided with a plurality of circles of positioning holes 12, and the distances between the plurality of positioning holes 12 in each circle and the positioning center point 11 are equal, so that the plurality of positioning holes 12 in each circle can correspond to the same group of inner sizing strips 211, and the positioning holes 12 can position the inner sizing strips 211 after being penetrated on the inner positioning portion 41, and the positioning of the inner sizing strips 211 can be enhanced due to the large number of positioning holes 12; or, the plurality of positioning holes 12 in each circle can correspond to the same group of outer sizing strips 212, and the positioning holes 12 can position the outer sizing strips 212 after being penetrated on the outer positioning portion 42, and the positioning of the outer sizing strips 212 can also be enhanced due to the large number of positioning holes 12.

[0052] The distances between the positioning holes 12 of different circles and the positioning center point 11 are different. Therefore, the positioning holes 12 of different circles can correspond to different groups of inner sizing strips 211 or outer sizing strips 212, and the inner sizing strips 211 or outer sizing strips 212 are positioned after the positioning assembly 40 is matched.

[0053] In some embodiments, the inner locking portion 41 and the outer locking portion 42 are bolts, and the locking hole 12 is a screw hole. In this way, the threaded cooperation between the bolt and the screw hole ensures that the locking assembly 40 is firmly fixed on the end panel 10, and can also be positioned by abutting against the inner sizing strip 211 or the outer sizing strip 212.

[0054] In some embodiments, the inner locking portion 41 and the outer locking portion 42 are fixing pins, and the fixing pins cooperate with the locking holes 12 to also position the inner sizing strip 211 or the outer sizing strip 212 .

[0055] In some embodiments, the inner retaining portion 41 stops at the side of the inner sizing strip 211 close to the center positioning point 11, and the outer retaining portion 42 stops at the side of the outer sizing strip 212 away from the center positioning point 11. Since the inner sizing strip 211 is used to position the inner template, and the outer sizing strip 212 is used to position the outer template, and the inner template and the outer template are used to define the two side walls of the casting cavity in the thickness direction, in this way, the inner retaining portion 41 and the outer retaining portion 42 are both located outside the casting cavity, so that the concrete will not solidify on the inner retaining portion 41 and the outer retaining portion 42 during the casting process, which is conducive to the removal of the inner retaining portion 41 and the outer retaining portion 42.

[0056] In some embodiments, Figure 2 As shown, each sizing strip 21 is formed into a box shape with an upper opening and two longitudinal sides open. The box-shaped sizing strip 21 has a box wall extending upward, which can play a role in positioning the inner and outer templates. The positioning strip 21 is provided with a plurality of reinforcing ribs 213 spaced apart and distributed along the length direction (see Figure 2 ), due to the large size of the tower tube or tower piece, the volume and mass of the inner and outer templates are also large, so the force acting on the positioning strip 21 during cooperation is also large. By providing a plurality of reinforcing ribs 213, the strength of the positioning strip 21 can be improved to prevent it from being damaged. By providing the reinforcing ribs 213 at intervals, it can be ensured that multiple positions on the positioning strip 21 are reinforced, thereby improving the overall strength of the positioning strip 21. Furthermore, the plurality of reinforcing ribs 213 can be distributed at equal intervals, so that the reinforcement of each position on the positioning strip 21 is more uniform and the effect is better.

[0057] In some embodiments, the bellows positioning strip 30 is detachably connected to the end panel 10. That is, when the bellows positioning strip 30 is damaged, it can be replaced or repaired, which is beneficial to extend the service life of the end face template 100.

[0058] In some embodiments, there are multiple groups of bellows positioning strips 30, and the curvatures of different groups of bellows positioning strips 30 are different. The bellows positioning strips 30 with larger curvatures are closer to the inner sizing strips 211. When placing the bellows in the casting cavity, considering the structural strength of the concrete tower or concrete tower piece after forming, the bellows are generally placed in the middle of the thickness of the casting cavity. Therefore, the bellows positioning strips 30 located in the center of the inner sizing strips 211 and the outer sizing strips 212 can be selected to install the bellows. Moreover, since the inner sizing strips 211 and the outer sizing strips 212 are both detachable, the inner sizing strips 211 and the outer sizing strips 212 can obtain a casting cavity of a new thickness after re-matching (for example, the thickness of the casting cavity obtained after re-matching becomes larger). At this time, it is not necessary to disassemble the bellows positioning strips 30 and select another group of bellows positioning strips 30 located in the center of the new casting cavity, thereby reducing the tower demoulding process and facilitating reuse.

[0059] In a specific embodiment, Figure 1 , Figure 3 As shown, the bellows positioning strips 30 can be three groups, and the adjacent groups of bellows positioning strips 30 have the same gap, which is filled with oily plaster before pouring. Furthermore, the width of the bellows positioning strips 30 is h1, the spacing of the bellows positioning strips 30 is h2, the difference in radius of adjacent towers is dh, and the wall thickness of the tower is t, where dh = h1 + h2, t = 3 × h1 + 2 × h2. Of course, the bellows positioning strips 30 are not limited to three groups, so they will not be explained one by one here.

[0060] In other embodiments, Figure 2 As shown, the bellows positioning strip 30 is provided with a plurality of circular holes 31 along the circumferential direction, and the circular holes 31 may be matched with positioning cones 50, and the bellows may be positioned on the bellows positioning strip 30 through the positioning cones 50. For example, one end of the positioning cone 50 is a cylinder (not shown) and the other end is a cone, so that the positioning cone 50 is matched in the circular hole 31 through the cylinder, and the bellows may be positioned by being sleeved on the bellows through the cone.

[0061] Combine the following Figures 1 to 3 A specific embodiment of the present invention is described.

[0062] An end face template 100 of a prefabricated tower includes: an end panel 10, a sizing assembly 20, and a bellows positioning strip 30. The end panel 10 has a positioning center point 11, and the upper end of the end panel 10 is provided with a positioning assembly 20. The positioning assembly 20 includes a positioning strip 21, and the sizing strips 21 are all formed into a box shape with an open top and open on both sides of the length. The positioning strip 21 includes an inner sizing strip 211 and an outer sizing strip 212, and each of the inner sizing strip 211 and the outer sizing strip 212 is provided with a group. There are five inner sizing strips 211 and they are evenly spaced along the circumference, and there are five outer sizing strips 212 and they are evenly spaced along the circumference. The sizing assembly 20 is matched with the end panel 10 through a clamping assembly 40, and the clamping assembly 40 includes an inner clamping portion 41 and an outer clamping portion 42. The end panel 10 is provided with a plurality of circles of positioning holes 12, and the distances between the plurality of positioning holes 12 in each circle and the positioning center point 11 are equal. The positioning holes 12 may be matched with an inner positioning portion 41 and an outer positioning portion 42. Three groups of bellows positioning strips 30 are also provided between the inner sizing strip 211 and the outer sizing strip 212. The bellows positioning strip 30 is provided with a plurality of circular holes 31 along the circumferential direction, and the circular holes 31 may be matched with a positioning cone 50, one end of the positioning cone 50 is a cylinder and the other end is a cone.

[0063] Other structures and operations of the end face formwork 100 of the prefabricated tower according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0064] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An end face template of a prefabricated tower, characterized in that: include: An end panel, the end panel having a positioning center point, the end panel is used to define the top surface or bottom surface of a casting cavity, the casting cavity is annular or sheet-shaped for casting a concrete tower tube or a concrete tower sheet; A sizing component, the sizing component comprises a plurality of sizing bars, the plurality of sizing bars comprise an inner sizing bar and an outer sizing bar, the inner sizing bar is located on a side of the casting cavity adjacent to the positioning center point, the outer sizing bar is located on a side of the casting cavity away from the positioning center point, the inner sizing bar and the outer sizing bar are respectively located on both sides of the casting cavity in a thickness direction, so as to respectively position the inner template and the outer template of the casting cavity; A bellows positioning strip, the bellows positioning strip is arranged on the end panel and is located between the inner sizing strip and the outer sizing strip; the bellows positioning strip is provided with a plurality of circular holes along the circumferential direction, the circular holes are matched with positioning cones, and the positioning cones are used to position the bellows on the bellows positioning strip.

2. The end face formwork of the prefabricated tower according to claim 1, characterized in that: The inner sizing strips are multiple groups, each group of the inner sizing strips includes at least one inner sizing strip, and the inner sizing strips in different groups have different curvatures. The inner sizing strip with a larger curvature is closer to the positioning center point; The outer sizing strips are multiple groups, each group of the outer sizing strips includes at least one outer sizing strip, and the outer sizing strips in different groups have different curvatures. The outer sizing strip with a larger curvature is closer to the positioning center point; Each group of the inner sizing strips corresponds to a group of the outer sizing strips, and the radii of the casting cavity defined by different groups of the inner sizing strips and the outer sizing strips are different.

3. The end face formwork of the prefabricated tower according to claim 2, characterized in that: The sizing assembly is matched on the end panel via a locking assembly, different groups of the inner sizing strips are replaceably arranged on the end panel, and different groups of the outer sizing strips are replaceably arranged on the end panel.

4. The end face formwork of the prefabricated tower according to claim 3, characterized in that: The positioning assembly comprises: An inner clamping portion, the inner clamping portion is detachably connected to the end panel, and the inner clamping portion is matched with the inner sizing strip; An outer clamping portion is detachably connected to the end panel and is matched with the outer sizing strip.

5. The end face formwork of the prefabricated tower according to claim 4, characterized in that: The end panel is provided with a plurality of positioning holes, and the inner positioning portion and the outer positioning portion are both penetrated through the positioning holes to respectively position the inner sizing strip and the outer sizing strip.

6. The end face formwork of the prefabricated tower tube according to claim 5, characterized in that: The end panel is provided with a plurality of circles of the positioning holes, and the distances between the plurality of the positioning holes in each circle and the positioning center point are equal, while the distances between the positioning holes in different circles and the positioning center point are different.

7. The end face formwork of the prefabricated tower according to claim 4, characterized in that: The inner clamping portion stops at a side of the inner sizing strip adjacent to the central positioning point, and the outer clamping portion stops at a side of the outer sizing strip away from the central positioning point.

8. The end face formwork of the prefabricated tower according to claim 1, characterized in that: Each of the sizing strips is formed into a box shape which is open at the top and open at both sides of the length, and the positioning strip is provided with a plurality of reinforcing ribs which are spaced apart and distributed along the length direction.

9. The end face formwork of a prefabricated tower according to any one of claims 1 to 8, characterized in that: The bellows positioning strip is detachably connected to the end panel.

10. The end face formwork of the prefabricated tower tube according to claim 9, characterized in that: The bellows positioning strips are divided into multiple groups, and the bellows positioning strips in different groups have different curvatures. The bellows positioning strips with larger curvatures are closer to the inner sizing strips.

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