Door opening mold for wind power tower drum prefabricated part

Abstract

The utility model discloses a wind power tower drum prefabricated part door opening mold which comprises a first door type module and a second door type module, the first door type module comprises two side frames, a top frame and middle parts located in the two side frames and the top frame, and gaps are formed in the connecting positions of the tops of the two side frames and the top frame; the bottom of the middle part is connected with a second gate-type module capable of moving up and down, and the second gate-type module is matched with a lower opening of the first gate-type module and can be in sealing fit with the lower opening of the first gate-type module; the two side frames are connected through a contraction mechanism; the left and right sides of the middle part are connected with the two side frames through limiting mechanisms. Compared with an existing door opening mold in the market, bolt connection is not needed, operation is easy, the demolding time and the mold closing time are shortened, meanwhile, the mold only has two abutted seams (namely the contact position of the first door type module and the second door type module), the abutted seams are provided with sealing rubber strips, and the possibility that the mold leaks slurry is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated component molds, in particular to a wind power tower prefabricated component doorway mold. Background Art

[0002] The first floor of a wind turbine concrete tower requires a doorway for easy access during installation and maintenance. Precast concrete towers require a doorway mold to secure the shape. Existing doorway mold solutions break the doorway into several heavy modules, each requiring manual handling and bolting. This increases the difficulty of mold assembly, making disassembly and assembly complex, time-consuming, and labor-intensive. The molds also have numerous joints and incomplete sealing, leading to leaks.

[0003] Chinese patent application CN 115990932 A discloses a concrete tower door opening mold, comprising: a removable rectangular mold frame; a removable tie rod located within the rectangular mold frame and connecting two sides of the rectangular mold frame; a removable first plate rod located within the rectangular mold frame, one end connected to the top of the rectangular mold frame and the other end connected to a side of the rectangular mold frame; and a removable second plate rod located within the rectangular mold frame, one end connected to the bottom of the rectangular mold frame and the other end connected to a side of the rectangular mold frame. This patent divides the mold into several sections, requiring manual assembly and disassembly, requiring each section to be assembled individually, connected using bolts, locating pins, and other means, which is very cumbersome. It adjusts the external dimensions of the door opening mold by replacing four of the modules, but this is not practical: 1. The tower tube has a curvature just like the pipe segments, and it is difficult to use different curvatures together; 2. Wind tower molds are now scrapped after being used in one or several projects. Instead of scrapping the project molds, only a door opening mold will be left, wasting resources.

[0004] Chinese patent CN 221160838 U discloses a door frame mold for a concrete tower of a wind turbine generator. The door frame mold includes multiple modules that are spliced ​​together along the outline of the tower door frame. The multiple modules include multiple connecting modules and multiple contour modules. The connecting modules have an inner side corresponding to the inner contour of the door frame, an outer side corresponding to the outer contour of the door frame, and two oblique side edges extending between the inner and outer sides. The inner side edge is longer than the outer side edge, and the oblique side edges are provided with a connection portion suitable for threaded connection with adjacent contour modules. This patent divides the mold into several sections, and disassembly and assembly requires people to assemble each section one by one, and each section is connected with bolts, locating pins, etc., which is very troublesome. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a wind power tower prefabricated component door opening mold, which is easy to assemble and disassemble, has a simple structure, good sealing performance, and greatly reduces the possibility of mold leakage.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A prefabricated doorway mold for a wind turbine tower comprises a first door module and a second door module. The first door module comprises two side frames, a top frame, and an intermediate component located within the two side frames and the top frame. A gap is defined at the inner side of the junction between the two side frames and the top frame. A second door module, capable of vertical movement, is connected to the bottom of the intermediate component and mates with the lower opening of the first door module, providing a sealable fit. The two side frames are connected via a retractable mechanism. Sealing strips are provided at the joint between the second door module and the first door module, as well as at the inner and outer edges of the second and first door modules.

[0008] The outer sides of the two side frames and the top frame are provided with integrally formed steel plates.

[0009] The bottom of the middle component is connected to the second door module through a quick lock mechanism and a guide mechanism respectively. The quick lock mechanism is located in the middle and the guide mechanisms are located on both sides.

[0010] The guide mechanism includes a first sleeve fixedly mounted on the middle component and a guide column fixedly mounted on the second door module. The guide column is inserted into the first sleeve and can move up and down along the first sleeve.

[0011] The quick lock mechanism includes a connecting column movably mounted on the second door module, the upper end of the connecting column is fixedly connected to the lower part of the C-shaped hook, the upper end of the C-shaped hook is mounted on the eccentric rotating block through a pin shaft, and the eccentric rotating block is movably mounted on the lower part of the middle component.

[0012] The retracting mechanism passes through the middle component and is connected to the two side frames.

[0013] The retraction mechanism includes two screws respectively installed on the two side frames through pins. The threads on the two screws are in opposite directions. The two screws are respectively screwed into the connecting rod through the threads at the ends. The two ends of the connecting rod are provided with threads in opposite directions.

[0014] A limiting mechanism is provided between the middle component and the two side frames. The limiting mechanism includes a connecting rod with one end mounted on the middle component through a pin shaft, and a long groove is provided on the other end of the connecting rod. The other end of the connecting rod is connected to the two side frames through the long groove.

[0015] A transfer hole for a forklift is fixedly installed on the middle component, which is used for forking the rectangular tube by the forklift to take the entire mold out of the component.

[0016] The beneficial effects of the utility model are: compared with the existing door opening molds on the market, there is no bolt connection, the operation is simple, and the demoulding time and the mold closing time are reduced. At the same time, the mold has only two joints (i.e., the contact position between the first door module and the second door module), and the joints are also provided with sealing strips, which greatly reduces the possibility of mold leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the demoulding structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the mold clamping structure of the utility model;

[0019] Figure 3 yes Figure 2 Left view of;

[0020] Figure 4 It is a schematic diagram of the quick lock mechanism;

[0021] Figure 5 It is the main view of the guide mechanism;

[0022] Figure 6 It is a side view of the guide mechanism;

[0023] Among them, 1-first portal module, 1-1. Gap, 1-2. Side frame, 1-3. Top frame, 1-4. Middle component, 2-second portal module, 3-retraction mechanism, 3-1. Screw, 3-2. Connecting rod, 4-quick lock mechanism, 4-1. Connecting column, 4-2. C-type hook, 4-3. Eccentric rotating block, 4-4. Limiting column, 5-guide mechanism, 5-1. First sleeve, 5-2. Guide column, 6-limiting mechanism, 6-1. Connecting rod, 6-2. Long groove, 6-3. Threaded column, 7-transfer hole for forklift. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any structural modification, change in proportional relationship, or adjustment in size shall still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle", and "one" quoted in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships shall also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0026] like Figures 1-6 As shown, the prefabricated door opening mold of the wind power tower includes a first door module 1 and a second door module 2. The first door module 1 includes two side frames 1-2, a top frame 1-3 and an intermediate component 1-4 located inside the two side frames 1-2 and the top frame 1-3. A gap 1-1 is provided at the connection between the top of the two side frames 1-2 and the top frame 1-3. When the shrinking mechanism 3 is rotated, the two side frames 1-2 of the first door module 1 can be shrunk inward. Since there is only a panel at the gap 1-1 and the steel plate has plasticity, the rotating shrinking mechanism 3 can shrink or close the two side frames 1-2 of the first door module 1.

[0027] A second door module 2 that can move up and down is connected to the bottom of the middle component 1-4. The second door module 2 matches the lower opening of the first door module 1 and can fit tightly together. The two side frames 1-2 are connected by a retraction mechanism 3. The left and right sides of the middle component 1-4 are connected to the two side frames 1-2 by a limiting mechanism 6.

[0028] Sealing strips are provided at the contact joint between the second door module 2 and the first door module 1 , as well as at the inner and outer edges of the second door module 2 and the first door module 1 .

[0029] The bottoms of the intermediate components 1-4 are connected to the second portal module 2 via a quick-lock mechanism 4 and a guide mechanism 5, respectively. The quick-lock mechanism 4 is located in the middle, and the guide mechanisms 5 are located on both sides. The guide mechanisms 5 guide the second portal module 2 during contraction or closing, preventing it from rocking left or right during contraction or closing.

[0030] The guide mechanism 5 includes a first sleeve 5-1 fixedly mounted on the middle component 1-4, and a guide column 5-2 fixedly mounted on the second door module 2. The guide column 5-2 is inserted into the first sleeve 5-1 and can move up and down along the first sleeve 5-1.

[0031] The quick-lock mechanism 4 includes a connecting post 4-1 movably mounted on the second door module 2. The upper end of the connecting post 4-1 is fixedly connected to the lower portion of a C-shaped hook 4-2. The upper end of the C-shaped hook 4-2 is pinned to an eccentric rotating block 4-3. The eccentric rotating block 4-3 is movably mounted on the lower portion of the intermediate component 1-4. A limit post 4-4 is positioned above the eccentric rotating block 4-3 to prevent excessive rotation of the eccentric rotating block 4-3 and to limit the height of the second door module 2. The eccentric rotating block 4-3 is provided with a polygonal protrusion or groove that mates with an external handle, facilitating the handle's insertion or engagement with the eccentric rotating block 4-3. Turning the handle rotates the eccentric rotating block 4-3, which in turn rotates the C-shaped hook, ultimately driving the second door module 2 up and down. During mold opening, the nut of the quick-lock mechanism 4 is first rotated to retract the second door module 2 upward to the designed position.

[0032] The retracting mechanism 3 passes through the middle component 1 - 4 and is connected to the two side frames 1 - 2 respectively.

[0033] The retraction mechanism 3 includes two screws 3-1 respectively installed on the two side frames 1-2 through pins. The threads on the two screws 3-1 are in opposite directions. The two screws 3-1 are screwed into the connecting rod 3-2 through the threads at the ends. The two ends of the connecting rod 3-2 are provided with threads in opposite directions.

[0034] The limiting mechanism 6 includes a connecting rod 6-1, one end of which is mounted on the intermediate component 1-4 via a pin. The other end of the connecting rod 6-1 is provided with an elongated slot 6-2. The other end of the connecting rod 6-1 is connected to the two side frames 1-2 via the elongated slot 6-2. The elongated slot 6-2 and the side frames can be connected via a pin or a threaded stud 6-3. The limiting mechanism 6 functions to limit the contraction or mold closing dimensions of the side ribs on both sides of the first portal module 1.

[0035] A forklift transfer hole 7 is fixedly installed in the middle part 1-4. The forklift transfer hole 7 can be a hole directly opened in the middle part 1-4 or a rectangular tube welded to the middle part 1-4. The forklift transfer hole 7 is used to remove the entire mold from the component by inserting a forklift into the transfer hole.

[0036] Compared with existing door opening molds on the market, this mold has no bolt connection, is easy to operate, and reduces demoulding time and mold closing time. At the same time, this mold has only two joints (i.e., the contact position between the first door module 1 and the second door module 2), and the joints are also equipped with sealing strips, which greatly reduces the possibility of mold leakage.

[0037] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A wind power tower prefabricated component door opening mold, characterized by: It includes a first door module and a second door module. The first door module includes two side frames, a top frame and an intermediate component located inside the two side frames and the top frame. A gap is opened on the inner side of the connection between the two side frames and the top frame. The bottom of the intermediate component is connected to the second door module that can move up and down. The second door module matches the lower opening of the first door module and can be sealed and fit together. The two side frames are connected by a contraction mechanism.

2. The wind turbine tower prefabricated component door opening mold according to claim 1, characterized in that: Sealing strips are provided at the contact joint between the second door module and the first door module and at the inner and outer edges of the second door module and the first door module.

3. The wind turbine tower prefabricated component door opening mold according to claim 1, characterized in that: The outer sides of the two side frames and the top frame are provided with integrally formed steel plates.

4. The wind turbine tower prefabricated component door opening mold according to claim 1, characterized in that: The bottom of the middle component is connected to the second door module through a quick lock mechanism and a guide mechanism respectively. The quick lock mechanism is located in the middle and the guide mechanisms are located on both sides.

5. The wind turbine tower prefabricated component door opening mold according to claim 4, characterized in that: The guide mechanism includes a first sleeve fixedly mounted on the middle component and a guide column fixedly mounted on the second door module. The guide column is inserted into the first sleeve and can move up and down along the first sleeve.

6. The wind turbine tower prefabricated component door opening mold according to claim 4, characterized in that: The quick lock mechanism includes a connecting column movably mounted on the second door module, the upper end of the connecting column is fixedly connected to the lower part of the C-shaped hook, the upper end of the C-shaped hook is mounted on the eccentric rotating block through a pin shaft, and the eccentric rotating block is movably mounted on the lower part of the middle component.

7. The wind turbine tower prefabricated component door opening mold according to claim 1, characterized in that: The retracting mechanism passes through the middle component and is connected to the two side frames respectively.

8. The wind turbine tower prefabricated component door opening mold according to claim 1, characterized in that: The retraction mechanism includes two screws respectively installed on the two side frames through pins, the threads on the two screws are in opposite directions, the two screws are respectively screwed into the connecting rod through the threads at the ends, and the two ends of the connecting rod are provided with screws in opposite directions.

9. The wind turbine tower prefabricated component door opening mold according to claim 1, characterized in that: A limiting mechanism is provided between the middle component and the two side frames. The limiting mechanism includes a connecting rod with one end mounted on the middle component through a pin shaft, and a long groove is provided on the other end of the connecting rod. The other end of the connecting rod is connected to the two side frames through the long groove.

10. The wind turbine tower prefabricated component door opening mold according to claim 1, characterized in that: A transfer hole for a forklift is fixedly installed on the intermediate component.

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