A ceiling fan with quick-installed fan blades

Abstract

The utility model discloses a ceiling fan with quick-installed blades, including a turntable and a plurality of blades, wherein the outer circumference of the turntable is provided with a mounting hole corresponding to each blade, the root of the blade is inserted into the mounting hole, and a limiting groove is provided on the side of the root, and the turntable is provided with a locking block, a tension spring and an unlocking device corresponding to each mounting hole, one end of the tension spring is connected and fixed to the turntable, and the other end of the tension spring is connected and fixed to the locking block, and the tension of the tension spring causes one end of the locking block to extend into the mounting hole and insert into the limiting groove to limit the blade from escaping from the mounting hole, and the unlocking device is rotatably arranged on the turntable, and the unlocking device and the locking block are meshed and connected, and one end of the unlocking device is provided with an unlocking end on the outer circumference of the turntable, and an external force drives the unlocking device to rotate through the unlocking end, so that the locking block moves away from the mounting hole and stretches the tension spring, and when the locking block escaping from the limiting groove, the blade can escaping from the mounting hole. The root of the blade of the utility model is inserted into the mounting hole, and under the tension of the tension spring, the locking block is automatically inserted into the limiting groove, and the installation of the blade is simple and easy, and the structure is stable, and no tools are required.

Description

Technical Field

[0001] The utility model relates to the technical field of ceiling fans, in particular to a ceiling fan with quick-installed fan blades. Background Art

[0002] At present, the turntable and blades of ceiling fans on the market are fixed by screws. Usually, the blades and turntable are packaged, shipped and sold after being disassembled. Usually, consumers assemble them by themselves or by installers after receiving the goods. If the screws are not tightened in place, there are safety risks in use.

[0003] Also, the installation of the turntable and the fan blades requires the use of tools. Utility Model Content

[0004] The utility model aims to provide a ceiling fan whose blades can be quickly installed without tools.

[0005] The purpose of the utility model is achieved in this way.

[0006] A ceiling fan with quick-installed fan blades comprises a turntable and a plurality of fan blades, the outer circumference of the turntable is provided with a mounting hole corresponding to each fan blade, the root of the fan blade is inserted into the mounting hole, and a limiting groove is provided on the side of the root, the turntable is provided with a locking block, a tension spring and an unlocking device corresponding to each mounting hole, one end of the tension spring is connected and fixed to the turntable, and the other end of the tension spring is connected and fixed to the locking block, the tension of the tension spring causes one end of the locking block to extend into the mounting hole and insert into the limiting groove to limit the fan blade from detaching from the mounting hole, the unlocking device is rotatably arranged on the turntable, the unlocking device and the locking block are meshed and connected, one end of the unlocking device is provided with an unlocking end on the outer circumference of the turntable, and external force drives the unlocking device to rotate through the unlocking end, so that the locking block moves away from the mounting hole and stretches the tension spring, and when the locking block detaches from the limiting groove, the fan blade can detach from the mounting hole.

[0007] The blade root of the utility model is inserted into the installation hole, and the locking block is automatically inserted into the limit groove under the tension of the tension spring. The fan blade is easy to install and has a stable structure without tools. Of course, the user can actively remove the fan blade from the turntable through the unlocking end.

[0008] The above technical solution can be further improved as follows.

[0009] Furthermore, the turntable is provided with a mounting groove on one side of the mounting hole, the mounting groove and the mounting hole are connected through a positioning hole, and one end of the locking block is inserted into the mounting hole through the positioning hole. The locking block is guided by the positioning hole to ensure that the locking block and the limiting groove are aligned.

[0010] Furthermore, two fixing seats are provided in the installation groove, a guide groove is formed between the two fixing seats, one end of the guide groove is aligned with the positioning hole, and the locking block slides in the guide groove. The sliding direction of the locking block is limited by the fixing seat to prevent the locking block from swinging in the horizontal direction and causing the connection between the locking block and the limiting groove to be disconnected.

[0011] Furthermore, the two fixing seats are respectively provided with shaft holes, the unlocking device is rotatably connected to the shaft holes, and the unlocking device is placed above the locking block. The unlocking device is easy to rotate and limits the locking block in the guide groove.

[0012] Furthermore, the unlocking device includes an unlocking shaft, a gear and an expansion sleeve. The inner end of the unlocking shaft passes through the shaft holes of the two fixing seats in sequence and is connected and fixed to the expansion sleeve. The gear is placed between the two fixing seats and is sleeved on the unlocking shaft. The gear and the unlocking shaft are connected in transmission. A rack is provided on the top surface of the locking block. The gear and the rack are meshed for transmission. The rotation of the unlocking shaft synchronously drives the gear to rotate. The gear drives the locking block to slide in the guide groove through the rack. The unlocking device is simple to install and easy to implement. The unlocking shaft and the expansion sleeve are not easy to separate after being connected.

[0013] Furthermore, an insertion hole is provided on the outer circumference of the rotating disk corresponding to the unlocking end, the insertion hole is aligned with and connected to the shaft hole of the adjacent fixing seat, the unlocking shaft is inserted through the insertion hole, the outer end of the unlocking shaft is placed in the insertion hole, the outer end of the unlocking shaft is provided with a plug hole for inserting a tool, and the outer end of the unlocking shaft constitutes the unlocking end. The unlocking end can only be rotated with the help of a tool such as a screwdriver or a hexagonal wrench.

[0014] Furthermore, a conical head is provided at the inner end of the unlocking shaft, and the conical head is connected and fixed to the expansion sleeve. The unlocking shaft and the expansion sleeve are easy to install, and the structure is stable and not easy to separate.

[0015] Furthermore, a limit block is provided on the locking block, and the limit block moves with the locking block until the limit block and the rotating disk abut against each other and the locking block stops extending into the mounting hole. The limit block limits the sliding range of the locking block.

[0016] Furthermore, the turntable is provided with a receiving groove above the mounting hole, the tension spring is placed in the receiving groove, a first hooking position is provided in the receiving groove, one end of the tension spring is hooked and connected with the first hooking position, a second hooking position is provided on the limit block, and the other end of the tension spring is hooked and connected with the second hooking position. The tension spring is simple and easy to install.

[0017] Furthermore, the limiting groove is provided with a first contact surface, the locking block is provided with a second contact surface and a guiding inclined surface, the first contact surface and the second contact surface are mutually restrained, and the first contact surface and the second contact surface are both perpendicular to the insertion direction of the root of the fan blade, and the root of the fan blade pushes the locking block to slide away from the mounting hole through the guiding inclined surface. The locking structure of the limiting groove and the locking block is stable, which improves the safety of the ceiling fan. The guiding inclined surface facilitates the insertion of the root of the fan blade into the mounting hole.

[0018] The root of the fan blade of the utility model is inserted into the installation hole, and under the tension of the tension spring, the locking block is automatically inserted into the limit groove. The fan blade is easy to install, the structure is stable, and no tools are required. Of course, the user can actively detach the fan blade from the turntable through the unlocking end. The unlocking end needs to be turned with the help of a tool such as a screwdriver or a hexagonal wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of embodiment 1.

[0020] Figure 2 This is a schematic diagram of the decomposed structure of Example 1.

[0021] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.

[0022] Figure 4 This is a schematic diagram of the turntable structure in Example 1.

[0023] Figure 5 It is a schematic cross-sectional structure diagram of the first embodiment.

[0024] Figure 6 for Figure 5 Enlarged diagram of part B in the middle (fan blades and disassembled state).

[0025] Figure 7 for Figure 5 Enlarged diagram of part C in the middle (fan blades and installation status). DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Example 1, see Figure 1-7 As shown, a ceiling fan with quick-installed blades includes a turntable 1 and a plurality of blades 2. The outer circumference of the turntable 1 is provided with a mounting hole 10 corresponding to each blade 2. The mounting hole 10 is provided with a guide long hole 11, and the root 21 of the blade 2 is provided with a guide protrusion 20. The root 21 of the blade 2 is inserted into the mounting hole 10, and the guide protrusion 20 is aligned and inserted into the guide long hole 11. A limiting groove 22 is provided on the side of the root 21, and the limiting groove 22 is provided with a first contact surface 23, and the first contact surface 23 is perpendicular to the insertion direction of the root 21 of the blade 2.

[0028] The turntable 1 is provided with a locking block 3, a tension spring 4 and an unlocking device 5 corresponding to each mounting hole 10. Specifically, a mounting groove 6 is provided on the side of the turntable 1 corresponding to each mounting hole 10, and the mounting groove 6 is connected to the mounting hole 10 through a positioning hole 61. Two fixing seats 62 are provided in the mounting groove 6, and a guide groove 63 is formed between the two fixing seats 62, and one end of the guide groove 63 is aligned with the positioning hole 61. A receiving groove 12 is provided above each mounting hole 10 of the turntable 1, and a first hooking position 13 is provided in the receiving groove 12, and the receiving groove 12 is connected to the mounting groove 6 through a clearance notch 14.

[0029] The lock block 3 is slidably arranged in the guide groove 63, and a limit block 31 is extended upward from the top surface of one end of the lock block 3 near the mounting hole 10, and a second hook position 32 is provided on the limit block 31. The tension spring 4 is placed in the accommodating groove 12, and one end of the tension spring 4 is hooked and connected with the first hook position 13, and the other end of the tension spring 4 passes through the clearance notch 14 and is hooked and connected with the second hook position 32 of the limit block 31. The tension of the tension spring 4 causes one end of the lock block 3 to extend into the mounting hole 10 through the positioning hole 61 until the limit block 31 and the turntable 1 are against each other. The end of the lock block 3 extending into the mounting hole 10 is provided with a second contact surface 33 and a guide inclined surface 34, and the second contact surface 33 is perpendicular to the insertion direction of the root 21 of the fan blade 2. The stretching direction of the tension spring 4 is parallel to the sliding direction of the lock block 3. Preferably, the stretching direction of the tension spring 4 and the sliding direction of the lock block 3 are on the same straight line.

[0030] The two fixing seats 62 are respectively provided with shaft holes 64, the unlocking device 5 is rotatably connected with the shaft holes 64, and the unlocking device 5 is placed above the locking block 3. The outer peripheral surface of the rotating disk 1 is provided with an insertion hole 15, which is aligned with and connected to the shaft holes 64 of the adjacent fixing seats 62.

[0031] The unlocking device 5 includes an unlocking shaft 7, a gear 8 and an expansion sleeve 9. The unlocking shaft 7 is inserted from the insertion hole 15, and the inner end of the unlocking shaft 7 passes through the shaft holes 64 of the two fixing seats 62 in sequence and is connected and fixed with the expansion sleeve 9. The gear 8 is placed between the two fixing seats 62 and is sleeved on the unlocking shaft 7. The gear 8 and the unlocking shaft 7 are connected in transmission. The top surface of the lock block 3 is provided with a rack 30. The gear 8 and the rack 30 are meshed and driven. The unlocking shaft 7 rotates synchronously to drive the gear 8 to rotate. The gear 8 drives the lock block 3 to slide in the guide groove 63 through the rack 30. Among them, the inner end of the unlocking shaft 7 is provided with a conical head 71, and the conical head 71 is connected and fixed with the expansion sleeve 9. The outer end of the unlocking shaft 7 is placed in the insertion hole 15, and the outer end of the unlocking shaft 7 is provided with a socket 72 for inserting a tool. The outer end of the unlocking shaft 7 constitutes the unlocking end of the unlocking device 5. Preferably, the socket 72 is a straight line or a cross line or a hexagonal hole. As in this embodiment, the socket 72 at the outer end of the unlocking shaft 7 is a hexagonal hole, and the tool is a hexagonal wrench.

[0032] Installation process: The unlocking device 5, the locking block 3 and the tension spring 4 have been pre-assembled in the factory. The user only needs to align the root 21 of the fan blade 2 with the mounting hole 10, and the guide protrusion 20 with the guide long hole 11. When the root 21 of the fan blade 2 is inserted into the mounting hole 10, the guide protrusion 20 is also inserted into the guide long hole 11. When the root 21 of the fan blade 2 contacts the guide slope 34, the root 21 of the fan blade 2 continues to be inserted, and the root 21 uses the guide slope 34 to push the locking block 3 to slide away from the mounting hole 10, that is, the locking block 3 leaves the mounting hole 10 and retracts into the mounting guide groove 63. The root 21 can be completely inserted into the mounting hole 10 until the limiting groove 22 of the root 21 is aligned with the positioning hole 61, and the root 21 and the guide slope 34 are out of contact. Under the tension of the tension spring 4, the locking block 3 slides through the positioning hole 61 and is inserted into the limiting groove 22 to achieve the installation of the fan blade 2. The turntable 1 rotates, and the fan blade 2 moves away from the mounting hole 10 under the action of centrifugal force, and the first contact surface 23 of the limit groove 22 contacts the second contact surface 33 of the locking block 3, restricting the fan blade 2 from leaving the mounting hole 10. The entire installation process does not require the use of any tools.

[0033] Disassembly process: The user needs to use a matching hexagonal wrench to insert into the insertion hole 72 of the unlocking shaft 7 in the insertion hole 15, the hexagonal wrench drives the unlocking shaft 7 to rotate, the unlocking shaft 7 drives the gear 8 to rotate, and the gear 8 drives the lock block 3 to slide away from the mounting hole 10 until the limit block 31 and the gear 8 abut against each other. During this process, the lock block 3 is separated from the limit groove 22, and the root 21 of the fan blade 2 is pulled out of the mounting hole 10. Release the hexagonal wrench, and the lock block 3 will reset itself under the tension of the tension spring 4.

Claims

1. A ceiling fan with quick-installed blades, comprising a turntable (1) and a plurality of blades (2), characterized in that: The outer circumference of the rotating disk (1) is provided with a mounting hole (10) corresponding to each fan blade (2), the root (21) of the fan blade (2) is inserted into the mounting hole (10), and the side of the root (21) is provided with a limiting groove (22). The rotating disk (1) is provided with a locking block (3), a tension spring (4) and an unlocking device (5) corresponding to each mounting hole (10), one end of the tension spring (4) is connected and fixed to the rotating disk (1), and the other end of the tension spring (4) is connected and fixed to the locking block (3), and the tension of the tension spring (4) causes one end of the locking block (3) to extend into the mounting hole (10) and be inserted into the mounting hole (10). The locking block (3) is engaged with the locking block (3) and is inserted into the limiting groove (22) to limit the fan blade (2) from being separated from the mounting hole (10). The unlocking device (5) is rotatably arranged on the rotating disk (1). The unlocking device (5) and the locking block (3) are meshed and connected. One end of the unlocking device (5) is provided with an unlocking end on the outer peripheral surface of the rotating disk (1). External force drives the unlocking device (5) to rotate through the unlocking end, so that the locking block (3) moves in a direction away from the mounting hole (10) and stretches the tension spring (4). When the locking block (3) is separated from the limiting groove (22), the fan blade (2) can be separated from the mounting hole (10).

2. The ceiling fan with quick-installed blades according to claim 1 is characterized in that: The rotating disk (1) is provided with a mounting groove (6) on one side of the mounting hole (10); the mounting groove (6) and the mounting hole (10) are connected via a positioning hole (61); and one end of the locking block (3) is inserted into the mounting hole (10) via the positioning hole (61).

3. The ceiling fan with quick-installed blades according to claim 2 is characterized in that: Two fixing seats (62) are arranged in the installation groove (6), a guide groove (63) is formed between the two fixing seats (62), one end of the guide groove (63) is aligned with the positioning hole (61), and the locking block (3) slides in the guide groove (63).

4. The ceiling fan with quick-installed blades according to claim 3 is characterized in that: The two fixing seats (62) are respectively provided with shaft holes (64), the unlocking device (5) and the shaft holes (64) are rotatably connected, and the unlocking device (5) is placed above the locking block (3).

5. The ceiling fan with quick-installed blades according to claim 4 is characterized in that: The unlocking device (5) comprises an unlocking shaft (7), a gear (8) and an expansion sleeve (9). The inner end of the unlocking shaft (7) passes through the shaft holes (64) of the two fixing seats (62) in sequence and is connected and fixed to the expansion sleeve (9). The gear (8) is placed between the two fixing seats (62) and is sleeved on the unlocking shaft (7). The gear (8) and the unlocking shaft (7) are connected in transmission. A rack (30) is provided on the top surface of the locking block (3). The gear (8) and the rack (30) are meshed for transmission. The unlocking shaft (7) rotates synchronously to drive the gear (8) to rotate. The gear (8) drives the locking block (3) to slide in the guide groove (63) through the rack (30).

6. The ceiling fan with quick-installed blades according to claim 5 is characterized in that: An insertion hole (15) is provided on the outer circumference of the rotating disk (1) corresponding to the unlocking end. The insertion hole (15) is aligned with and communicates with the shaft hole (64) of the adjacent fixing seat (62). The unlocking shaft (7) is inserted through the insertion hole (15). The outer end of the unlocking shaft (7) is placed in the insertion hole (15). The outer end of the unlocking shaft (7) is provided with a socket (72) for inserting a tool. The outer end of the unlocking shaft (7) constitutes the unlocking end.

7. The ceiling fan with quick-installed blades according to claim 5 is characterized in that: The inner end of the unlocking shaft (7) is provided with a conical head (71), and the conical head (71) and the expansion sleeve (9) are connected and fixed.

8. The ceiling fan with quick-installed blades according to claim 1 is characterized in that: A limit block (31) is provided on the locking block (3), and the limit block (31) moves with the locking block (3) until the limit block (31) and the rotating disk (1) abut against each other, and the locking block (3) stops extending into the mounting hole (10).

9. The ceiling fan with quick-installed blades according to claim 3, characterized in that: The turntable (1) is provided with a receiving groove (12) above the mounting hole (10), the tension spring (4) is placed in the receiving groove (12), a first hooking position (13) is provided in the receiving groove (12), one end of the tension spring (4) is hooked and connected to the first hooking position (13), a second hooking position (32) is provided on the limit block (31), and the other end of the tension spring (4) is hooked and connected to the second hooking position (32).

10. The ceiling fan with quick-installed blades according to claim 1, characterized in that: The limiting groove (22) is provided with a first contact surface (23), and the locking block (3) is provided with a second contact surface (33) and a guiding inclined surface (34). The first contact surface (23) and the second contact surface (33) are mutually restrained, and the first contact surface (23) and the second contact surface (33) are both perpendicular to the insertion direction of the root (21) of the fan blade (2). The root (21) of the fan blade (2) pushes the locking block (3) to slide in a direction away from the mounting hole (10) via the guiding inclined surface (34).

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