Fan blade structure convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of fan blades, and discloses a fan blade structure convenient to disassemble and assemble, which comprises an installation end installed on a fan driving shaft, a detachable end is detachably installed at the front end of the installation end, and three fan blades are installed on the annular outer wall surface of the detachable end. According to the fan blade structure convenient to disassemble and assemble, a magnet strip B continuously penetrates into an outer slide way, so that the side end of a clamping rod retracts into a communicating hole, and after the magnet strip B and a magnet strip A are staggered, the clamping rod enters a clamping hole to be clamped, so that clamping and fixing between a hollow pipe and a rotating column are achieved; according to the fan blade fixing device, the fan blades are installed through clamping fixing instead of original threaded fixing, the fan blades can be firmly fixed without screwing up threads, in addition, when the fan blades are installed, the fan blades only need to be pushed inwards all the time along the hollow pipe till the fan blades cannot be pushed, and installation is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of fan blades, and in particular to a fan blade structure which is easy to disassemble and assemble. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fan is the customary abbreviation for gas compression and gas delivery machinery in China. The fans usually include ventilators, blowers, and wind turbines.

[0003] With regard to the existing related technologies, the inventors believe that the following defects often exist: the fan blade installation method is to first install a threaded rod on the driving end of the fan, then put the fan blade on the threaded rod, and finally install a front stopper with a threaded groove on the front side of the threaded rod to press the fan on the driving end of the fan, that is, the fan blade is installed on the driving bearing of the motor by threaded pressing. The threaded installation requires tightening the threads to prevent the fan blades from detaching from the driving end when the fan blades rotate at high speed. When the threads are tightened, it is inconvenient to use when disassembling the fan blades, and it is not convenient to quickly separate the tightened threads, making it inconvenient to disassemble and assemble the fan blades.

[0004] To this end, we propose a fan blade structure that is easy to disassemble and assemble. Utility Model Content

[0005] In view of the above-mentioned existing fan blades being installed on the driving bearing of the motor by means of threaded pressing, the threaded installation requires tightening the threads to prevent the fan blades from detaching from the driving end when the fan blades rotate at high speed. However, when the threads are tightened, it is inconvenient to use when disassembling the fan blades, and it is not convenient to quickly separate the tightened threads, resulting in the inconvenience of disassembling and assembling the fan blades. Therefore, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide a fan blade structure that is easy to assemble and disassemble, and its purpose is to quickly assemble and disassemble the fan blades.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a fan blade structure that is easy to disassemble and assemble, comprising a mounting end mounted on a fan drive shaft, a detachable end being detachably mounted at the front end of the mounting end, and three fan blades being mounted on the annular outer wall surface of the detachable end;

[0008] The mounting end comprises a hollow tube, outer slideways are provided on both sides of the outer wall of the hollow tube, inner slideways are provided on both sides of the inner wall of the hollow tube, a clamping assembly is installed inside the hollow tube, and the clamping end of the clamping assembly is located outside the hollow tube;

[0009] The detachable end comprises a rotating column, a mounting cavity is provided at the rear end of the rotating column, and the clamping end of the clamping assembly is clamped with the inside of the mounting cavity.

[0010] As a preferred solution of the fan blade structure that is easy to disassemble and assemble described in the utility model, a connecting plate is welded to the tail end of the hollow tube, and a circle of fixing holes is penetrated through the outer edge of the front side of the connecting plate.

[0011] As a preferred solution of a fan blade structure that is easy to disassemble and assemble as described in the utility model, the hollow tube includes two guide rods welded inside the hollow tube, two translation plates are slidably installed between the two guide rods, clamping rods are welded on the opposite sides of the two translation plates, and the outward ends of the clamping rods are located outside the hollow tube, magnet strips A are welded on the opposite sides of the two translation plates and on the front sides of the clamping rods, and the outer wall surface of the guide rod is sleeved with a guide rod located between the translation plates on both sides.

[0012] As a preferred solution of the fan blade structure that is easy to disassemble and assemble described in the utility model, connecting holes for the clamping rod to pass through are opened on both sides of the outer wall of the hollow tube, and the outer slideway and the inner slideway are connected through the connecting holes.

[0013] As a preferred solution of a fan blade structure that is easy to disassemble and assemble as described in the utility model, side grooves connected to the installation cavity are provided on both sides of the rear end of the rotating column, and clamping holes connected to the clamping rod are provided on both sides of the interior of the rotating column, and a driving part is installed inside the side groove.

[0014] As a preferred solution of a fan blade structure that is easy to disassemble and assemble as described in the utility model, the driving part includes two sliders welded inside the side grooves, the sliders are slidably connected to a sliding rod through sliding holes thereon, a magnet bar B is welded to the tail end of the sliding rod, and the opposite surfaces of the magnet bar B and the magnet bar A are in a repulsive state, and the outer wall of the sliding rod is located between the slider and the magnet bar B and is sleeved with a spring B.

[0015] As a preferred solution of the fan blade structure that is easy to disassemble and assemble described in the utility model, a storage cavity is opened in the middle of the front side of the rotating column, a connecting cross plate is welded between the front ends of the sliding rods on both sides, and a storage cavity for storage is opened on the front side of the rotating column.

[0016] As a preferred solution of the fan blade structure that is easy to disassemble and assemble described in the utility model, grooves connected to the storage cavity are provided at the upper and lower positions of the front side of the rotating column, and a buckle groove is provided in the middle of the top and bottom of the connecting horizontal plate.

[0017] Beneficial effects of the utility model:

[0018] 1. In the utility model, the magnet strip B continuously penetrates into the interior of the outer slideway, so that the side end of the clamping rod is retracted into the interior of the connecting hole. When the magnet strip B is staggered with the magnet strip A, the clamping rod is clamped into the interior of the clamping hole to realize the clamping fixation between the hollow tube and the rotating column. The fan blades are installed by clamping fixation instead of the original threaded fixation. The fan blades can be firmly fixed without tightening the threads. Moreover, when installing the fan blades, it is only necessary to push them inward along the hollow tube until they can no longer be pushed. The installation of the fan blades is very convenient.

[0019] 2. In the utility model, when the detachable end is removed from the mounting end, the connecting horizontal plate is held and pulled forward to drive the magnet bar B to move forward. The magnet bar B gradually faces the magnet bar A. In the state of repulsion between them, the clamping rod is retracted and disengaged from the inside of the clamping hole, and the clamping connection between the hollow tube and the rotating column is released. The detachable end is pulled forward to achieve the disassembly between the mounting end and the detachable end, and the magnet bar B is pulled backward to achieve the detachment between the hollow tube and the rotating column. On the basis of easy installation, it is also easy to disassemble the hollow tube and the rotating column, and both installation and disassembly are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 The utility model is a schematic diagram of the overall structure of a fan blade structure that is easy to disassemble and assemble.

[0022] Figure 2 The utility model is a schematic structural diagram of a fan blade structure that is easy to disassemble and assemble, with the mounting end and the detachable end being in a separated state.

[0023] Figure 3 The utility model is a schematic diagram of the installation end structure of a fan blade structure that is easy to disassemble and assemble.

[0024] Figure 4 The utility model is a schematic diagram of a rotating column structure of a fan blade structure which is easy to disassemble and assemble.

[0025] Figure 5 The utility model is a schematic diagram of the internal structure of the installation cavity of a fan blade structure that is easy to disassemble and assemble.

[0026] Description of reference numerals:

[0027] 1. Mounting end; 11. Hollow tube; 12. Connecting plate; 13. Outer slide; 14. Inner slide; 15. Snap-on assembly; 151. Spring A; 152. Guide rod; 153. Translation plate; 154. Magnet bar A; 155. Connecting hole; 156. Clamping rod; 2. Removable end; 21. Rotating column; 22. Storage cavity; 23. Groove; 24. Mounting cavity; 25. Side groove; 26. Clamping hole; 27. Driving part; 271. Sliding block; 272. Magnet bar B; 273. Sliding rod; 274. Spring B; 275. Connecting cross plate; 3. Fan blades. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] Example 1

[0030] Reference Figure 1-5 , which is the first embodiment of the utility model, provides a fan blade structure that is easy to disassemble and assemble, and this fan blade structure that is easy to disassemble and assemble includes a mounting end 1 mounted on the fan drive shaft, a detachable end 2 is detachably mounted on the front end of the mounting end 1, and three fan blades 3 are mounted on the annular outer wall surface of the detachable end 2;

[0031] The mounting end 1 includes a hollow tube 11. External slideways 13 are provided on both sides of the outer wall of the hollow tube 11. The external slideways 13 limit the position of the magnet bar B272. The magnet bar B272 slides along the external slideways 13 to prevent the clamping rod 156 from being misaligned with the side groove 25, thereby ensuring that the clamping rod 156 accurately enters the side groove 25 for clamping. Internal slideways 14 are provided on both sides of the inner wall of the hollow tube 11. A clamping assembly 15 is installed inside the hollow tube 11, and the clamping end of the clamping assembly 15 is located outside the hollow tube 11.

[0032] The detachable end 2 includes a rotating post 21 . A mounting cavity 24 is formed at the rear end of the rotating post 21 . The clamping end of the clamping assembly 15 is clamped with the inside of the mounting cavity 24 .

[0033] The fan blades are installed by snap-fitting instead of the original threaded fixation, and the fan blades can be firmly fixed without tightening the threads. Moreover, when installing the fan blades, it is only necessary to push inward along the hollow tube 11 until it can no longer be pushed, and the installation of the fan blades is completed, which is very convenient.

[0034] A connecting plate 12 is welded to the tail end of the hollow tube 11, and a circle of fixing holes is formed on the outer edge of the front side of the connecting plate 12. The fixing holes on the connecting plate 12 are connected to the driving end of the fan, and the mounting end 1 is installed on the driving end of the fan.

[0035] The hollow tube 11 includes two guide rods 152 welded inside the hollow tube 11, and two translation plates 153 are slidably installed between the two guide rods 152. The two translation plates 153 are welded with clamping rods 156 on the opposite sides, and the outward ends of the clamping rods 156 are located outside the hollow tube 11. Magnet strips A154 are welded on the opposite sides of the two translation plates 153 and in front of the clamping rods 156. The outward side of the magnet strip A154 is located inside the inner slide 14 and is used to limit the outer wall of the sliding guide rod 152 and is located between the translation plates 153 on both sides. The guide rod 152 is sleeved, and two sliding holes are provided on the translation plate 153 for the two guide rods 152 to pass through, and a sliding hole is provided on the magnet strip A154 for the front guide rod 152 to pass through.

[0036] Both sides of the outer wall of the hollow tube 11 are provided with communication holes 155 for the clamping rod 156 to pass through, and the outer slideway 13 and the inner slideway 14 are connected through the communication holes 155 .

[0037] During use, the process of installing the detachable end 2 on the mounting end 1 is as follows: put the rotating column 21 on the hollow tube 11, and make the magnet bar B272 enter the interior of the outer slide 13. The magnet bar B272 continues to penetrate into the interior of the outer slide 13. When the magnet bar B272 and the magnet bar A154 are in a repulsive state, the magnet bars A154 on both sides will be pushed toward the middle, so that the translation plate 153 squeezes the spring A151, and the side end of the clamping rod 156 is retracted to the interior of the connecting hole 155. As the magnet bar B272 further penetrates into the interior of the outer slide 13, when the magnet bar B272 and the magnet bar A154 are offset, under the elastic action of the spring A151, the translation plates 153 on both sides are pushed outward, so that the clamping rod 156 enters the interior of the clamping hole 26 for clamping, thereby realizing the clamping and fixing between the hollow tube 11 and the rotating column 21.

[0038] Example 2

[0039] Reference Figure 1-5 , which is the second embodiment of the utility model, and this embodiment is different from the first embodiment in that:

[0040] Side grooves 25 connected to the installation cavity 24 are provided on both sides of the rear end of the rotating column 21, and clamping holes 26 connected to the clamping rod 156 are provided on both sides of the interior of the rotating column 21, and the clamping holes 26 are connected to the side grooves 25, and a driving member 27 is installed inside the side grooves 25.

[0041] The driving member 27 includes two sliders 271 welded inside the side groove 25, and the slider 271 is slidably connected to the slide rod 273 through the slide hole thereon, and the tail end of the slide rod 273 is welded with a magnet strip B272, and the opposite surfaces of the magnet strip B272 and the magnet strip A154 are in a repulsive state. The outer wall of the slide rod 273 is sleeved with a spring B274 located between the slider 271 and the magnet strip B272. The magnet strip B272 can be pulled backward to achieve the separation between the hollow tube 11 and the rotating column 21. On the basis of easy installation, it is also convenient to disassemble the hollow tube 11 and the rotating column 21. The assembly and disassembly are very convenient. Release the pulling force applied to the connecting cross plate 275, and the magnet strip B272 is reset under the elastic reset action of the spring B274.

[0042] A storage cavity 22 is provided in the middle of the front side of the rotating column 21 , a connecting horizontal plate 275 is welded between the front ends of the sliding rods 273 on both sides, and a storage cavity 22 for storage is provided on the front side of the rotating column 21 .

[0043] Grooves 23 connected to the storage cavity 22 are provided at the upper and lower positions of the front side of the rotating column 21, and buckle grooves are provided in the middle of the top and bottom of the connecting cross plate 275. The arrangement of the grooves 23 and the buckle grooves at the top and bottom of the connecting cross plate 275 facilitates the hand to hold the connecting cross plate 275, and facilitates the inlay and dragging of the connecting cross plate 275.

[0044] During use, when the detachable end 2 is removed from the mounting end 1, the hand-held connecting cross plate 275 is pulled forward, driving the slide bar 273 to move forward, and the magnet bar B272 is pulled forward. At this time, the magnet bar B272 compresses the spring B274. When the magnet bar B272 moves forward, the magnet bar B272 will gradually face the magnet bar A154. In a state of repulsion between them, the clamping rod 156 is retracted and disengaged from the inside of the clamping hole 26, thereby releasing the clamping connection between the hollow tube 11 and the rotating column 21. The detachable end 2 can be pulled forward to achieve the disassembly between the mounting end 1 and the detachable end 2.

[0045] The remaining structures are the same as those of Example 1.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fan blade structure that is easy to disassemble and assemble, characterized in that: It comprises a mounting end (1) mounted on a fan drive shaft, a detachable end (2) being detachably mounted on the front end of the mounting end (1), and three fan blades (3) being mounted on the annular outer wall surface of the detachable end (2); The mounting end (1) comprises a hollow tube (11), outer slideways (13) are provided on both sides of the outer wall of the hollow tube (11), inner slideways (14) are provided on both sides of the inner wall of the hollow tube (11), a clamping assembly (15) is installed inside the hollow tube (11), and a clamping end of the clamping assembly (15) is located outside the hollow tube (11); The detachable end (2) comprises a rotating column (21), a mounting cavity (24) is provided at the rear end of the rotating column (21), and a clamping end of the clamping assembly (15) is clamped to the inside of the mounting cavity (24).

2. The fan blade structure that is easy to assemble and disassemble according to claim 1 is characterized in that: A connection plate (12) is welded to the rear end of the hollow tube (11), and a circle of fixing holes is formed through the outer edge of the front side of the connection plate (12).

3. The fan blade structure that is easy to disassemble and assemble according to claim 2, characterized in that: The hollow tube (11) comprises two guide rods (152) welded inside the hollow tube (11), two translation plates (153) are slidably mounted between the two guide rods (152), clamping rods (156) are welded on opposite sides of the two translation plates (153), and the outward ends of the clamping rods (156) are located outside the hollow tube (11), magnet strips A (154) are welded on opposite sides of the two translation plates (153) and located in front of the clamping rods (156), and the guide rods (152) are sleeved on the outer wall surface of the guide rods (152) and located between the two translation plates (153).

4. The fan blade structure that is easy to disassemble and assemble according to claim 3 is characterized in that: Both sides of the outer wall of the hollow tube (11) are provided with communication holes (155) for the clamping rod (156) to pass through, and the outer slideway (13) and the inner slideway (14) are connected via the communication holes (155).

5. The fan blade structure that is easy to disassemble and assemble according to claim 4, characterized in that: Side grooves (25) communicating with the mounting cavity (24) are provided on both sides of the rear end of the rotating column (21), and clamping holes (26) engaging with the clamping rod (156) are provided on both sides of the interior of the rotating column (21), and a driving member (27) is installed inside the side grooves (25).

6. The fan blade structure that is easy to assemble and disassemble according to claim 5, characterized in that: The driving member (27) comprises two sliders (271) welded inside the side groove (25); the sliders (271) are slidably connected to a slide rod (273) through a slide hole thereon; a magnet bar B (272) is welded to the tail end of the slide rod (273); and the opposite surfaces of the magnet bar B (272) and the magnet bar A (154) are in a repulsive state; and a spring B (274) is sleeved on the outer wall of the slide rod (273) and is located between the sliders (271) and the magnet bar B (272).

7. The fan blade structure that is easy to assemble and disassemble according to claim 6, characterized in that: A storage cavity (22) is provided in the middle of the front face of the rotating column (21), a connecting transverse plate (275) is welded between the front ends of the sliding rods (273) on both sides, and a storage cavity (22) for storing is provided on the front side of the rotating column (21).

8. The fan blade structure that is easy to assemble and disassemble according to claim 7, characterized in that: Grooves (23) communicating with the storage cavity (22) are provided at upper and lower positions on the front of the rotating column (21), and buckle grooves are provided at the middle of the top and bottom of the connecting transverse plate (275).

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