High-stability fan blade mechanism and turbofan

Abstract

The utility model relates to the technical field of turbofans, in particular to a high-stability fan blade mechanism and a turbofan. Comprising an annular groove formed in the surface of a connecting rod, a limiting groove formed in the surface of the bottom of the annular groove, a threaded hole formed in the surface of the bottom of the annular groove, a rotating rod fixed to the surface of the end of a screw rod, a sliding groove formed in the arc-shaped surface of the rotating rod, a pull rod fixed to the surface of one side of a pull plate, a baffle fixed to the surface of the end of the pull rod and a limiting block fixed to the surface of the end of the baffle. The device has the beneficial effects that the connecting rod is rotated to enable the screw rod to be clamped into the threaded hole, when the screw rod is completely clamped into the threaded hole, the limiting block corresponds to the limiting groove at the same time, at the moment, pulling of the pulling plate is stopped, and the spring resets to push the baffle to move; the limiting block is clamped in the limiting groove, rotation of the screw rod in the threaded hole is limited, and looseness prevention of the screw rod is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbofans, in particular to a high-stability fan blade mechanism and a turbofan. Background Art

[0002] A fan is a mechanical device whose main function is to convert the mechanical energy of the prime mover into the pressure energy and kinetic energy of the gas being transported, which is used to transport, pressurize or extract gas.

[0003] In the prior art, turbofans are widely used in life and production. Their basic structure mainly consists of fan blades and a motor. The fan blades are fixed to the motor by bolts, and the motor drives the fan blades to rotate at high speed to generate airflow.

[0004] However, the blades of traditional turbofans are fixed to the motor with bolts, and the blades will vibrate when rotating at high speed, which can easily cause the bolts to loosen. Loose bolts will cause the blades to collide back and forth when rotating, affecting the service life of the equipment and the blowing performance of the fan. Utility Model Content

[0005] The utility model aims to provide a high-stability fan blade mechanism and a turbofan blower to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a high-stability fan blade mechanism, the high-stability fan blade mechanism comprising:

[0007] Connecting rod; an annular groove is provided on the surface of the connecting rod, a limiting groove is provided on the bottom surface of the annular groove, a threaded hole is provided on the bottom surface of the annular groove, a screw is clamped in the threaded hole, a rotating rod is fixed on the end surface of the screw, a sliding groove is provided on the arc surface of the rotating rod, and a motor is fixed on the end surface of the rotating rod;

[0008] A pull plate; a pull rod is fixed on one side of the pull plate, a baffle is fixed on the end surface of the pull rod, a limit block is fixed on the end surface of the baffle, the limit block is clamped inside the storage block, a storage groove is opened on one end surface of the storage block, and a notch is opened at the end of the storage groove.

[0009] Preferably, there are multiple groups of limit grooves, which are circumferentially distributed on the end surface of the annular groove, and there are multiple groups of limit blocks, which are circumferentially distributed on the surface of the baffle plate, and the limit blocks correspond to the limit grooves, and the limit blocks are clamped in the limit grooves, and the two are movably connected.

[0010] Preferably, the sliding grooves are provided with multiple groups, which are distributed circumferentially on the arc surface of the rotating rod, and the storage blocks are provided with multiple groups, which are distributed circumferentially, and the storage blocks correspond to the sliding grooves, and the storage blocks are clamped in the sliding grooves, and the two are movably connected.

[0011] Preferably, the storage grooves are provided in multiple groups, which are circumferentially distributed on the surface of the storage block, and the baffles are provided in multiple groups, which are circumferentially distributed on the surface of the limit block, and the baffles correspond to the storage grooves, and the baffles are clamped in the storage grooves, and the two are movably connected.

[0012] Preferably, the size of the notch is the same as that of the limit block, and the baffle is clamped in the receiving groove, while the size of the baffle is larger than that of the limit block, and the limit block is received in the receiving groove.

[0013] A turbofan comprises the high-stability blade mechanism.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The cam is pressed against the locking cam which is then pressed against the locking cam and the locking cam, and the locking cam, when in contact with the locking cam, will stop the locking cam and move the locking cam in the locking cam slot, thereby preventing the locking cam from rotating in the threaded hole and preventing the locking cam from loosening. The locking cam can be taken out of the sliding slot, and can be easily replaced when the anti-loosening mechanism is damaged. The structure is simple and easy to operate, and can prevent the locking cam from loosening in the threaded hole, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the motor structure of the utility model;

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

[0019] Figure 4 This is a schematic diagram of the screw anti-loosening structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the limit block of the utility model;

[0021] Figure 6 This is a schematic diagram of the storage block structure of the utility model.

[0022] In the figure: 1 motor, 2 pull plate, 3 connecting rod, 4 fan blade, 5 screw rod, 6 sliding groove, 7 rotating rod, 8 annular groove, 9 limit groove, 10 threaded hole, 11 pull rod, 12 spring, 13 limit block, 14 storage block, 15 baffle, 16 notch, 17 storage groove. DETAILED DESCRIPTION

[0023] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figures 1 to 6 The utility model provides a technical solution: a high-stability fan blade mechanism and a turbofan, a connecting rod 3 surface is provided with an annular groove 8, a limiting groove 9 is provided on the bottom surface of the annular groove 8, a limiting block 13 is clamped into the limiting groove 9, so that the rotating rod 7 is connected to the connecting rod 3, and the rotation of the screw 5 in the threaded hole 10 is limited, so as to prevent the screw 5 from loosening, a threaded hole 10 is provided on the bottom surface of the annular groove 8, a screw 5 is clamped in the threaded hole 10, a rotating rod 7 is fixed on the end surface of the screw 5, a sliding groove 6 is provided on the arc surface of the rotating rod 7, and a motor 1 is fixed on the end surface of the rotating rod 7;

[0025] A pull rod 11 is fixed to the surface of one side of the pull plate 2, a baffle 15 is fixed to the end surface of the pull rod 11, a limit block 13 is fixed to the end surface of the baffle 15, the limit block 13 is inserted into the limit groove 9, so that the rotating rod 7 is connected to the connecting rod 3, and the rotation of the screw rod 5 in the threaded hole 10 is limited, thereby preventing the screw rod 5 from loosening. The limit block 13 is inserted into the storage block 14, and a storage groove 17 is provided on the surface of one end of the storage block 14, and a notch 16 is provided at the end of the storage groove 17.

[0026] Embodiment 2:

[0027] On the basis of the first embodiment, in order to prevent the screw 5 from loosening, multiple groups of limit grooves 9 are provided, and the multiple groups of limit grooves 9 are circumferentially distributed on the end surface of the annular groove 8, and multiple groups of limit blocks 13 are provided, and the multiple groups of limit blocks 13 are circumferentially distributed on the surface of the baffle 15, and the limit blocks 13 correspond to the limit grooves 9, and the limit blocks 13 are clamped in the limit grooves 9, so that the rotating rod 7 is connected to the connecting rod 3, and the rotation of the screw 5 in the threaded hole 10 is limited, so as to prevent the screw 5 from loosening, and the two are movably connected;

[0028] There are multiple groups of sliding grooves 6, which are circumferentially distributed on the arc surface of the rotating rod 7. There are multiple groups of storage blocks 14, which are circumferentially distributed, and the storage blocks 14 correspond to the sliding grooves 6. The storage blocks 14 are stuck in the sliding grooves 6 and can be taken out from the sliding grooves 6. When the anti-loosening mechanism is damaged, it is convenient to replace it. The two are movably connected;

[0029] There are multiple groups of storage grooves 17, which are circumferentially distributed on the surface of the storage block 14. There are multiple groups of baffles 15, which are circumferentially distributed on the surface of the limit block 13. The baffles 15 correspond to the storage grooves 17. The baffles 15 are clamped in the storage grooves 17. The pull plate 2 moves through the pull rod 11 to move the baffles 15, so that the limit block 13 is stored in the storage groove 17, and the two are movably connected.

[0030] The size of the notch 16 is the same as that of the limit block 13, and the baffle 15 is clamped in the storage groove 17, while the size of the baffle 15 is larger than that of the limit block 13. The limit block 13 is received in the storage groove 17, and the limit block 13 will not fall out of the storage groove 17, so it has stability.

[0031] The specific solution is as follows: first, the receiving block 14 is clamped in the sliding groove 6, then the pull plate 2 is pulled to move, and the pull plate 2 moves through the pull rod 11 with the baffle 15 to store the limit block 13 in the receiving groove 17, then the threaded hole 10 and the screw rod 5 are matched, and the connecting rod 3 is rotated to make the screw 5 clamped in the threaded hole 10. When the screw 5 is completely clamped in the threaded hole 10, the limit block 13 corresponds to the limit groove 9 at the same time, and the pull plate 2 is stopped at this time. The elasticity of the spring 12 and the reset of the spring 12 will push the baffle 15 to move, so that the limit block 13 is stuck in the limit groove 9, so that the rotating rod 7 is connected to the connecting rod 3, and the screw 5 is limited to rotate in the threaded hole 10, thereby preventing the screw 5 from loosening, and the storage block 14 can be taken out from the sliding groove 6. When the anti-loosening mechanism is damaged, it is convenient to replace. This structure is simple and easy to operate, and prevents the screw 5 from loosening in the threaded hole 10, which is beneficial to improving its use effect.

[0032] Although 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 appended claims and their equivalents.

Claims

1. A high stability fan blade mechanism, characterized in that: The high-stability fan blade mechanism comprises: A connecting rod (3); an annular groove (8) is provided on the surface of the connecting rod (3); a limiting groove (9) is provided on the bottom surface of the annular groove (8); a threaded hole (10) is provided on the bottom surface of the annular groove (8); a screw rod (5) is clamped in the threaded hole (10); a rotating rod (7) is fixed on the end surface of the screw rod (5); a sliding groove (6) is provided on the arc surface of the rotating rod (7); and a motor (1) is fixed on the end surface of the rotating rod (7); A pull plate (2); a pull rod (11) is fixed on one side surface of the pull plate (2); a baffle (15) is fixed on the end surface of the pull rod (11); a limit block (13) is fixed on the end surface of the baffle (15); the limit block (13) is clamped inside a storage block (14); a storage groove (17) is provided on one end surface of the storage block (14); and a notch (16) is provided at the end of the storage groove (17).

2. A high stability fan blade mechanism according to claim 1, characterized in that: The limiting grooves (9) are provided with a plurality of groups, and the plurality of groups of limiting grooves (9) are circumferentially distributed on the end surface of the annular groove (8); the limiting blocks (13) are provided with a plurality of groups, and the plurality of groups of limiting blocks (13) are circumferentially distributed on the surface of the baffle (15); the limiting blocks (13) correspond to the limiting grooves (9), and the limiting blocks (13) are clamped in the limiting grooves (9), and the two are movably connected.

3. A high stability fan blade mechanism according to claim 1, characterized in that: The sliding grooves (6) are provided with a plurality of groups, and the plurality of groups of sliding grooves (6) are distributed in a circular manner on the arc surface of the rotating rod (7). The storage blocks (14) are provided with a plurality of groups, and the plurality of groups of storage blocks (14) are distributed in a circular manner. The storage blocks (14) correspond to the sliding grooves (6), and the storage blocks (14) are clamped in the sliding grooves (6), and the two are movably connected.

4. The high stability fan blade mechanism according to claim 1, characterized in that: The storage grooves (17) are provided in a plurality of groups, and the plurality of groups of storage grooves (17) are circumferentially distributed on the surface of the storage block (14); the baffles (15) are provided in a plurality of groups, and the plurality of groups of baffles (15) are circumferentially distributed on the surface of the limit block (13); the baffles (15) correspond to the storage grooves (17), and the baffles (15) are clamped in the storage grooves (17), and the two are movably connected.

5. A high stability fan blade mechanism according to claim 4, characterized in that: The size of the notch (16) is the same as the size of the limit block (13), and the baffle (15) is clamped in the storage groove (17), while the size of the baffle (15) is larger than the size of the limit block (13), and the limit block (13) is stored in the storage groove (17).

6. A turbofan, characterized in that: It comprises the high stability fan blade mechanism as described in any one of claims 1 to 5.

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