Combined fan blade

Abstract

The utility model discloses a combined type fan blade which comprises a fan blade root section, a connecting column is installed in the fan blade root section, a fan blade fixing device is installed at one end of the connecting column, a C-shaped connecting plate is installed on one side of the fan blade fixing device, a connecting mechanism is arranged at one end of the fan blade root section, and the C-shaped connecting plate is installed on the other side of the fan blade fixing device. And one side of the connecting mechanism is provided with a fan blade tip section, the outer side of the connecting column is uniformly sleeved with connecting blocks, and the outer sides of the connecting blocks are uniformly provided with supporting rods. One end of the fan blade root section and one end of the fan blade tip section are respectively inserted into the connecting frame, the fan blade root section and the fan blade tip section are preliminarily connected and fixed under the mutual matching of the convex block and the groove, and then the fixing plate is inserted into the inserting groove. The fixing plate further fixes the connection of the blade root section and the blade tip section of the fan blade through a bolt, and then a fixing screw penetrates through the protruding block to be screwed into the outer side of the connecting frame.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a combined wind blade. Background Art

[0002] Wind power generation refers to the process of converting kinetic energy into electrical energy by using wind to drive the blades on the windmill to rotate. Wind power generation is a clean, renewable green energy source, and its development and utilization has become a form of energy that countries around the world are vying to adopt in the 21st century.

[0003] Most of the wind blades on the existing wind power generation devices are fixed and integrated, and the wind blades have various forms as the market needs, and the length of the wind blades has also increased accordingly. The longer the wind blades are, the more local wind resources can be utilized. However, the longer the wind blades are, the greater the requirements for installation and transportation are, which increases the cost of installation and transportation. Moreover, most of the existing wind blades are hollow, and when encountering severe windy weather, the wind blades are easily damaged, which is not conducive to staff to repair and replace, and increases the maintenance cost. Utility Model Content

[0004] The utility model aims to provide a combined fan blade to solve the problems mentioned in the above background technology that most of the existing fan blades are fixed and integrated, inconvenient to disassemble and assemble, difficult to transport, and easy to be damaged in windy weather.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined fan blade, comprising a fan blade root section, a connecting column is installed inside the fan blade root section, and a fan blade fixer is installed at one end of the connecting column, a C-shaped connecting plate is installed on one side of the fan blade fixer, a connecting mechanism is provided at one end of the fan blade root section, and a fan blade tip section is installed on one side of the connecting mechanism, connecting blocks are evenly sleeved on the outer side of the connecting column, and support rods are evenly installed on the outer side of the connecting blocks, a slider is installed on one side of the support rod, a guide rail is slidably connected to the inside of the slider, and the guide rail is provided inside the fan blade root section.

[0006] When using a combined fan blade of the present technical solution, the fan blade root section and the fan blade tip section can be installed and spliced ​​by setting a connecting mechanism. When performing the above-mentioned reverse operation, the fan blade root section and the fan blade tip section can be disassembled to facilitate transportation by staff and reduce transportation costs.

[0007] Preferably, the connecting mechanism includes a connecting frame, which is arranged at one end of the root section of the fan blade and the tip section of the fan blade, the top of the connecting frame is provided with a plug-in slot, and a fixing plate is installed inside the plug-in slot, grooves are provided on both sides of the connecting frame, and protrusions are installed inside the grooves, one end of the protrusion is respectively connected to one side of the root section of the fan blade and the tip section of the fan blade, and fixing screws are installed on both sides of the connecting frame.

[0008] Preferably, two groups of fixing screws are provided, and both groups of fixing screws pass through the protrusion and extend to the outside of the connecting frame.

[0009] Preferably, a plurality of groups of support rods are arranged on the outer side of the connecting block, and the support rods are distributed in a cross shape.

[0010] Preferably, the slider slides on the guide rail, and the connecting column is slidably connected to the root section of the wind blade through the slider and the guide rail.

[0011] Preferably, the cross-section of the C-shaped connecting plate is U-shaped, and the C-shaped connecting plate is bolted to the root section of the wind blade by bolts.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the combined fan blade is not only easy to assemble and disassemble, which makes the installation and transportation of the fan blade convenient, but also improves the resistance of the fan blade and reduces the maintenance cost;

[0013] The blade root section and the blade tip section of the fan blade are respectively inserted into the connecting frame, and the blade root section and the blade tip section of the fan blade are preliminarily connected and fixed under the cooperation of the protrusion and the groove, and then the fixing plate is inserted into the plug-in groove, and the fixing plate is further fixed to the connection between the blade root section and the blade tip section of the fan blade by bolts, and then the fixing screw is passed through the protrusion and screwed into the outside of the connecting frame, that is, the fixing screw, the fixing plate and the protrusion cooperate with each other to further improve the firmness of the blade root section and the blade tip section of the fan blade, and prevent the blade tip section from falling off when it rotates to generate electricity. The above reverse operation can be performed to disassemble the blade root section and the blade tip section of the fan blade, which is convenient for installation and transportation by the staff, reduces the difficulty of installation and transportation, and reduces the cost of installation and transportation;

[0014] A connecting column is installed inside the root section and the tip section of the fan blade. Through the cooperation of the guide rail and the slider, the support rod sleeved on the outside of the connecting column is slid into the inside of the root section and the tip section of the fan blade, thereby supporting the inside of the root section and the tip section of the fan blade and improving the strength of the root section and the tip section of the fan blade. Then, the connecting column and the fan blade holder are fixed by the C-shaped connecting plate and bolts to prevent the connecting column from loosening and falling off during rotation for power generation, thereby reducing the adverse effects of bad weather on it to a certain extent and reducing the cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the connecting frame of the utility model;

[0020] Figure 5 It is a schematic diagram of the connecting mechanism structure of the utility model.

[0021] Explanation of the reference numerals in the figure: 1. fan blade holder; 2. fan blade root section; 3. connecting mechanism; 301. connecting frame; 302. fixing screw; 303. fixing plate; 304. protrusion; 305. plug-in slot; 306. groove; 4. fan blade tip section; 5. C-shaped connecting plate; 6. guide rail; 7. slider; 8. support rod; 9. connecting block; 10. connecting column. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides an embodiment: a combined fan blade, including a fan blade root section 2, a connecting column 10 is installed inside the fan blade root section 2, and a fan blade holder 1 is installed at one end of the connecting column 10, and a C-shaped connecting plate 5 is installed on one side of the fan blade holder 1;

[0024] The cross section of the C-shaped connecting plate 5 is U-shaped, and the C-shaped connecting plate 5 is bolted to the blade root section 2 of the wind blade by bolts;

[0025] Specifically, Figure 1 , Figure 3 As shown, when in use, the connecting column 10 is fixed by setting a C-shaped connecting plate 5, so as to reduce the loosening and falling of the connecting column 10 when the fan blade root section 2 and the fan blade tip section 4 are working;

[0026] A connecting mechanism 3 is provided at one end of the fan blade root section 2;

[0027] The connecting mechanism 3 includes a connecting frame 301, which is arranged at one end of the fan blade root section 2 and the fan blade tip section 4, and a plug-in slot 305 is arranged at the top of the connecting frame 301, and a fixing plate 303 is installed inside the plug-in slot 305, and grooves 306 are arranged on both sides of the connecting frame 301, and bumps 304 are installed inside the grooves 306, and one end of the bump 304 is connected to one side of the fan blade root section 2 and the fan blade tip section 4 respectively, and fixing screws 302 are installed on both sides of the connecting frame 301;

[0028] There are two sets of fixing screws 302, both of which penetrate the protrusion 304 and extend to the outside of the connecting frame 301;

[0029] Specifically, Figure 1 , 3 As shown in , 4, and 5, when in use, the fan blade root section 2 and the fan blade tip section 4 are connected and fixed by the plug-in slot 305, and the fan blade root section 2 and the fan blade tip section 4 are further fixed by screwing the fixing screw 302 to improve their firmness and prevent the fan blade root section 2 and the fan blade tip section 4 from falling off during work. The above reverse operations can be performed to disassemble them, which is convenient for the staff to transport them later;

[0030] A blade tip section 4 is installed on one side of the connecting mechanism 3, a connecting block 9 is evenly sleeved on the outer side of the connecting column 10, and a support rod 8 is evenly installed on the outer side of the connecting block 9;

[0031] There are multiple groups of support rods 8 on the outside of the connecting block 9, and the support rods 8 are distributed in a cross shape;

[0032] Specifically, Figure 1 , 2 As shown, when in use, by setting up multiple groups of support rods 8, the inside of the fan blade root section 2 and the fan blade tip section 4 can be supported, thereby improving the strength of the fan blade root section 2 and the fan blade tip section 4, and reducing the impact of severe windy weather on them to a certain extent;

[0033] A slider 7 is installed on one side of the support rod 8;

[0034] The slider 7 slides on the guide rail 6, and the connecting column 10 forms a sliding connection with the blade root section 2 of the wind blade through the slider 7 and the guide rail 6;

[0035] The interior of the slider 7 is slidably connected with a guide rail 6, and the guide rail 6 is arranged inside the blade root section 2 of the wind blade;

[0036] Specifically, Figure 1 , 2 As shown, when in use, the slider 7 cooperates with the guide rail 6 to facilitate the staff to install the support rod 8 outside the connecting column 10 to the inside of the wind blade root section 2 and the wind blade tip section 4.

[0037] Working principle: When the utility model is in use, firstly, the connecting frame 301 is sleeved on one end of the fan blade root section 2 and the fan blade tip section 4, and the fan blade root section 2 and the fan blade tip section 4 are preliminarily connected, and the fan blade root section 2 and the fan blade tip section 4 are further connected by the mutual cooperation between the protrusion 304 and the groove 306, and the fixing plate 303 is inserted into the plug-in groove 305. The fan blade root section 2 and the fan blade tip section 4 are connected and fixed by bolts on both sides of the fixing plate 303, and then the fixing screw 302 is inserted into the connecting frame 301 by screwing it, and it passes through the protrusion 304 and is inserted into the outside of the connecting frame 301, and the fan blade root section 2 and the fan blade tip section 4 on both sides of the connecting frame 301 are further fixedly connected with the fan blade root section 2 and the fan blade tip section 4 to prevent the fan blade root section 2 and the fan blade tip section 4 from falling off. The above reverse operations can be performed to disassemble and assemble it, which improves the convenience of installation for the staff, and is convenient for the staff to transport it, saving the installation and transportation costs;

[0038] Secondly, when the fan blade root section 2 and the fan blade tip section 4 enter the place where wind power generation needs to be installed, a guide rail 6 is provided inside the fan blade root section 2 and the fan blade tip section 4, and a slider 7 is installed inside the guide rail 6. Under the cooperation of the guide rail 6 and the slider 7, the support rod 8 sleeved on the outside of the connecting column 10 is slid into the inside of the fan blade root section 2 and the fan blade tip section 4 to support the fan blade root section 2 and the fan blade tip section 4, thereby improving the strength of the fan blade root section 2 and the fan blade tip section 4, and then the connecting column 10 is fixed by the C-shaped connecting plate 5 to prevent it from falling off and loosening, thereby reducing losses caused by bad weather and reducing maintenance costs.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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.

[0040] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A combined fan blade, comprising a fan blade root section (2), characterized in that: A connecting column (10) is installed inside the fan blade root section (2), and a fan blade fixer (1) is installed at one end of the connecting column (10), a C-shaped connecting plate (5) is installed on one side of the fan blade fixer (1), a connecting mechanism (3) is provided at one end of the fan blade root section (2), and a fan blade tip section (4) is installed on one side of the connecting mechanism (3), a connecting block (9) is evenly sleeved on the outside of the connecting column (10), and support rods (8) are evenly installed on the outside of the connecting block (9), a slider (7) is installed on one side of the support rod (8), and a guide rail (6) is slidably connected to the inside of the slider (7), and the guide rail (6) is arranged inside the fan blade root section (2).

2. A combined fan blade according to claim 1, characterized in that: The connection mechanism (3) comprises a connection frame (301), the connection frame (301) being arranged at one end of a fan blade root section (2) and a fan blade tip section (4), a plug-in slot (305) being arranged at the top end of the connection frame (301), and a fixing plate (303) being installed inside the plug-in slot (305), grooves (306) being arranged on both sides inside the connection frame (301), and protrusions (304) being installed inside the grooves (306), one end of the protrusions (304) being connected to one side of the fan blade root section (2) and the fan blade tip section (4), respectively, and fixing screws (302) being installed on both sides inside the connection frame (301).

3. A combined fan blade according to claim 2, characterized in that: Two groups of the fixing screw rods (302) are provided, and both groups of the fixing screw rods (302) penetrate the protrusion (304) and extend to the outside of the connecting frame (301).

4. The combined fan blade according to claim 1, characterized in that: A plurality of groups of support rods (8) are arranged on the outside of the connection block (9), and the support rods (8) are distributed in a cross shape.

5. The combined fan blade according to claim 1, characterized in that: The sliding block (7) slides on the guide rail (6), and the connecting column (10) is slidably connected to the fan blade root section (2) via the sliding block (7) and the guide rail (6).

6. The combined fan blade according to claim 1, characterized in that: The cross section of the C-shaped connecting plate (5) is U-shaped, and the C-shaped connecting plate (5) is bolted to the blade root section (2) of the wind blade via bolts.

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