Folding fan

Abstract

The utility model discloses a folding fan which comprises a base, a telescopic rod assembly, a fan head and a locking device, a containing groove with an upper opening is formed in the base, the telescopic rod assembly comprises a T-shaped hinge seat and a telescopic rod part, the T-shaped hinge seat comprises a transverse pipe, a vertical pipe and a locking seat, and a locking hole is formed in the locking seat; the locking device comprises a lock shell, a driven lock piece, a driving piece and a spring, the driven lock piece comprises a lock body part, a spring bolt and a spring column seat, a driven inclined plane is arranged on the lock body part, the driving piece comprises a driving body and a button, and a driving inclined plane is arranged on the driving body; when the fan is used, the vertical pipe is perpendicular to the horizontal plane of the base, the spring bolt on the locking device is inserted into the locking hole, and the locking device is locked with the locking seat. When the fan is in a storage state, the telescopic rod assembly is embedded into the storage groove, and a spring bolt of the locking device abuts against the vertical pipe so that the telescopic rod assembly can be locked. Due to the adoption of the structure, the fan is very convenient to operate, store and use, and the fan in the stored state cannot be automatically unfolded.

Description

Technical Field

[0001] This utility model relates to the technical field of fans, and in particular to a folding fan. Background Technology

[0002] Currently, Chinese invention patent ZL201910759811.2 discloses a foldable fan, which includes: a chassis; a fan body disposed on one side of the chassis; a telescopic locking mechanism with one end rotatably mounted to the chassis and the other end mounted to the fan body, wherein when the fan body is in use, the telescopic locking mechanism is fixed to the chassis and supports the fan body after being fixed; and a flip-locking mechanism with one end mounted to the fan body and the other end mounted to the telescopic end; the chassis is provided with a storage groove, and when the fan is folded, the telescopic locking mechanism and the flip-locking mechanism are folded and housed in the storage groove. The locking mechanism includes: an outer sleeve sleeved on the inner sleeve and rotatable relative to the inner sleeve to lock or unlock the inner sleeve and the chassis; and a limiting structure disposed between the inner sleeve and the outer sleeve for limiting the movement of the outer sleeve on the inner sleeve. A locking element is provided between the outer sleeve and the chassis. This locking element increases the locking area between the outer sleeve and the chassis to improve the stability of the telescopic rod. When the outer sleeve rotates relative to the inner sleeve and approaches the chassis, it presses the locking element against the chassis to lock the inner sleeve. When the outer sleeve rotates relative to the inner sleeve and moves away from the chassis, it releases the pressure on the locking element to release the locking of the inner sleeve. The outer surface of the inner sleeve has external threads, and the inner surface of the outer sleeve has corresponding internal threads. The outer sleeve can be locked and fixed to the inner sleeve by a threaded structure that mates with the inner sleeve. The problems are as follows: ① The locking mechanism of the threaded structure is inconvenient to operate for locking or unlocking; ② After the telescopic locking mechanism and the flip-locking mechanism are flipped and folded and placed in the storage slot, since there is no device in the storage slot to lock the telescopic locking mechanism, when the fan is tilted in the folded state or during the movement or transport of the fan, the telescopic locking mechanism will automatically disengage from the storage slot, requiring the use of ropes to tighten it; ③ The outer sleeve presses the locking part against the chassis of the fan, and the locking part presses and rubs against the chassis surface, thus damaging the chassis. Utility Model Content

[0003] The purpose of this invention is to provide a folding fan that is easy to operate, fold, and unfold, and whose locking device also has the function of locking the upright tube when stored.

[0004] The fan and telescopic rod assembly has an automatic locking function.

[0005] This utility model is implemented as follows: a folding fan includes a base, a telescopic rod assembly, a fan head and a locking device. The base is provided with a storage slot with an upper opening, and a hinge hole is provided on the inner wall of one end of the storage slot.

[0006] The telescopic rod assembly includes a T-shaped hinge seat and a telescopic rod section. The T-shaped hinge seat includes a horizontal tube, a vertical tube, and a locking seat. Half shafts are provided at both ends of the horizontal tube, and the half shafts are rotatably engaged with the hinge holes. A locking hole is provided on one side of the locking seat. The fan head is hinged to the telescopic rod section, and the telescopic rod section is engaged with the vertical tube for telescopic extension and retraction.

[0007] The locking device is located inside the base, and the locking tongue of the locking device is located on the storage slot wall panel and can extend and retract. When the fan is in use, the riser is perpendicular to the horizontal plane of the base, and the locking tongue on the locking device is inserted into the locking hole on the locking seat, locking the locking device and locking seat. When the fan is in storage, the telescopic rod assembly is embedded in the storage slot, and the locking tongue on the locking device presses against the riser to lock the telescopic rod assembly in the storage slot. Rotating the fan head makes the fan blade cover fit tightly against the base, and the fan head and base are folded together.

[0008] Specifically, the locking device includes a lock housing, a driven locking element, a driving element, and a spring; the lock housing is hollow and has an upper opening, including a lock tongue guide hole on one end plate, a spring post on the other end plate, and a vertical guide hole and a guide cylinder on the bottom plate; the vertical guide hole intersects with the guide cylinder and extends downward;

[0009] The driven lock includes a hollow lock body with openings at the top and bottom, a bolt at one end of the lock body and a spring post at the other end, and a driven inclined surface is provided on the wall panel at one end of the lock body.

[0010] The driving component includes a driving body and a button. The driving body includes an active ramp, a sliding part, a guide part, and a guide rod. The width of the sliding part is greater than the width of the guide part, thereby limiting the vertical distance of the button's descent.

[0011] The locking seat has a locking hole on one side; the base has a guide hole on one side of the storage slot and a button hole on the top plate.

[0012] The driven locking element is located inside the lock housing. The bolt engages with the bolt guide hole, and the spring post is inserted into the spring. The lock body slides within the inner cavity of the lock housing. The driving element is located inside the sliding body, with the driving and driven inclined surfaces sliding together. The sliding body engages with the bottom plate of the lock housing for positioning. The guide part slides with the vertical guide hole, guide rod, and guide cylinder. The lock housing is fixed to the top plate of the base. The bolt extends into the storage slot through the bolt guide hole and the guide hole. The button extends from the button hole. In the use state, the bolt engages with the locking hole. In the storage state, the bolt engages with the riser.

[0013] In the storage state, grasp the fan head and rotate the telescopic rod assembly. The riser pushes the latch to move the driven locking piece back. Continue to rotate, and the riser passes over the latch and separates from it. As the telescopic rod assembly rotates to be perpendicular to the base, the locking hole aligns with the latch, and the latch automatically extends into the locking hole. The locking seat locks with the locking device, and the system is switched to the use state.

[0014] When switching from the use state to the storage state, press the button to drive the driven locking component to move and retract, and the locking tongue will leave the locking hole; then rotate the telescopic rod assembly, and the telescopic rod assembly will enter the storage slot, and the locking tongue will press against the riser and lock the telescopic rod assembly.

[0015] As a further improvement of this utility model: the end of the lock body where the lock tongue is provided is provided with a stop notch, and the lock shell is provided with a stop protrusion; the stop notch and the stop protrusion cooperate to stop.

[0016] Both the driving component and the driven locking component are integrally formed from metal materials. Lubricating oil is provided between the driving inclined surface and the driven inclined surface, making the locking device durable and reliable.

[0017] As a further improvement of this utility model: the locking tongue is provided with a guide slope, which cooperates with the riser; when the telescopic rod assembly rotates, it is convenient for the riser to push the guide slope.

[0018] As a further improvement of this utility model: the hinge end of the storage groove is provided with a cavity; the locking seat is fitted into the cavity.

[0019] As a further improvement of this utility model: both the driving component and the driven locking component are integrally formed from metal material; lubricating oil is provided between the driving inclined surface and the driven inclined surface.

[0020] As a further improvement of this utility model: the base is cylindrical and also includes a handle and a connector. The handle is arc-shaped and has sliding holes at both ends; the connector includes a connecting plate and a circular head.

[0021] The connecting plate passes through the sliding hole and is fixed to the base. Under normal conditions, the handle is in contact with the base and the connecting plate is in contact with one end of the sliding hole. When the handle is lifted, the handle and the base are separated and the connecting plate is engaged with the other end of the sliding hole.

[0022] As a further improvement of this utility model, it also includes a remote control. The top surface of the base is provided with a groove that cooperates with the remote control. The lower end surface of the groove is provided with a face to facilitate the removal of the remote control embedded in the groove.

[0023] This utility model discloses a folding fan. Due to its structure, when transitioning from the use state to the storage state, pressing the button on the base retracts the latch, disengaging it from the locking hole, unlocking the telescopic rod assembly. Rotating the telescopic rod assembly causes it to embed into the storage slot of the base, with the latch pressing against the upright tube to restrict its movement. Rotating the fan head folds it onto the base, with the air inlet cover on the fan head pressed tightly against the base surface. When transitioning from the storage state to the use state, holding the fan head unfolds it, causing the upright tube to rotate under force and disengage from the latch, releasing the telescopic rod assembly from the storage slot. Once the telescopic rod assembly rotates to a position perpendicular to the horizontal plane of the base, the latch of the locking device inserts into the locking hole on the locking seat and locks the telescopic rod assembly automatically. Compared with existing technologies, this folding fan has the following advantages:

[0024] 1. It is very convenient to switch the fan from storage mode to use mode or vice versa.

[0025] 2. When the fan is in its folded state, the locking device locks the telescopic rod assembly in the storage slot, effectively preventing the folded fan from unfolding on its own when it tilts or tipes over.

[0026] 3. The locking seat and the cavity work together to limit the swing range of the telescopic rod assembly to between 0 and 90 degrees. When the fan is in use, the telescopic rod assembly is perpendicular to the base, ensuring that the fan's center of gravity is more balanced.

[0027] 4. It also avoids the damage to the chassis caused by the locking mechanism of existing technologies.

[0028] Folding fan Attached Figure Description

[0029] Figure 1 This is a perspective view of the present invention.

[0030] Figure 2 This is a sectional view of the utility model.

[0031] Figure 3 yes Figure 2 A-A view.

[0032] Figure 4 This is a three-dimensional view of the utility model in its stored state.

[0033] Figure 5 This is a top view of the utility model in its stored state (fan head removed).

[0034] Figure 6 yes Figure 5 B-B view.

[0035] Figure 7 This is an exploded perspective view of this utility model.

[0036] Figure 8 This is a perspective view of the locking device of this utility model.

[0037] Figure 9 This is an exploded perspective view of the locking device of this utility model. Detailed Implementation

[0038] To make the technical solutions and effects of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this utility model, and not all embodiments.

[0039] The terms "connection," "setting," and "installation" used in this utility model should be interpreted broadly. For example, "connection" can be a fixed connection, a movable connection, or a detachable connection; it can also be a mechanical connection or a circuit connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components or the interaction between two components. Unless otherwise explicitly specified and limited, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the actual situation. The terms "inner," "outer," "front," "rear," "upper," "lower," "left," and "right," etc., describe the orientation or positional relationship of the device / component indicated in the drawings, and do not emphasize that the indicated component / device must have a specific orientation structure and operation, and should not be construed as a limitation on the scope of protection of this utility model. The terms "first," "second," and "third," etc., are only used to distinguish technical features, and should not be construed as indicating or implying relative importance, the number of technical features, or the sequential relationship of technical features.

[0040] like Figures 1 to 6 As shown, a folding fan includes a base 1, a telescopic rod assembly 2, a fan head 3, and a locking device 4; the base 1 is provided with a storage groove 11 with an upper opening, and a hinge hole 12 is provided on the inner wall of one end of the storage groove 11.

[0041] The telescopic rod assembly 2 includes a T-shaped hinge seat 21 and a telescopic rod part 22. The T-shaped hinge seat 21 includes a horizontal tube 211, a vertical tube 212 and a locking seat 213. Half shafts are provided at both ends of the horizontal tube 211. The telescopic rod part 22 cooperates with the vertical tube 212 to realize the extension or shortening of the telescopic rod part. The fan head 3 is hinged to the telescopic rod part 22.

[0042] The locking device 4 is located inside the base 1, and the half shaft is rotatably engaged with the hinge hole 12. In the use state, the riser 212 is perpendicular to the horizontal plane of the base, and the locking tongue of the locking device 4 is locked with the locking seat 213. In the storage state, the telescopic rod assembly 2 is embedded in the storage groove 11, and the locking tongue of the locking device 4 presses against the riser 212 to lock the telescopic rod assembly in the storage groove. The fan head 3 is rotated to make the fan blade cover fit tightly against the base 1, and the fan head 3 and the base 1 are folded together.

[0043] Specifically, such as Figure 1 , Figure 8 , Figure 9 As shown, the locking device 4 includes a lock housing 41, a driven locking member 42, a driving member 43, and a spring 44; the lock housing 41 is hollow and has an upper opening, including a lock tongue guide hole 411 on one end plate, a spring column seat 414 on the other end plate, and a vertical guide hole 412 and a guide cylinder 413 on the bottom plate; the vertical guide hole intersects with the guide cylinder 413 and extends downward;

[0044] The driven lock 42 includes a hollow lock body 421 with openings at the top and bottom, a lock tongue 422 provided at one end of the lock body 421, and a spring pin seat 423 provided at the other end. A driven inclined surface 424 is provided on the wall plate at one end of the lock body 421.

[0045] The driving component 43 includes a driving body and a button 431. The driving body includes an active inclined surface 432, a sliding part 433, a guide part 434, and a guide rod 435. The width of the sliding part 433 is greater than the width of the guide part 434, thereby limiting the vertical distance of the button's descent.

[0046] like Figure 2 As shown, a locking hole 2131 is provided on one side of the locking seat 213; as Figure 6 As shown, the base 1 has a guide hole 14 on one side of the storage slot 11 and a button hole 15 on the top plate.

[0047] The driven locking element 42 is located inside the lock housing 41. The bolt engages with the bolt guide hole 411. The spring post is inserted into the spring 45. The lock body 421 is slidably engaged with the inner cavity of the lock housing 41. The driving element is located inside the lock body 421. The driving inclined surface 432 and the driven inclined surface 423 are slidably engaged. The sliding body 433 engages with the bottom plate of the lock housing 41 to stop. The guide part 434 is slidably engaged with the vertical guide hole 412, the guide rod 435, and the guide cylinder 413. The lock housing 41 is fixed to the top plate of the base 1. The bolt 422 extends into the storage groove 11 through the bolt guide hole 411 and the guide hole 14. The button 431 extends out from the button hole 15. The bolt 422 engages with the locking hole 2131 or the bolt 422 engages with the riser 212.

[0048] like Figure 2 In the indicated operating state, the locking tongue 422 extends into the locking hole 2131, as shown. Figure 6 The storage state shown indicates that the locking tongue 422 engages with the riser 212.

[0049] In the retracted state, directly rotating the telescopic rod assembly 2 drives the riser 212 to activate the locking tongue 422, and the driven locking member 42... Figure 5 Move the tube to the left and continue rotating. The riser 212 and the locking tongue 422 separate, and then the locking tongue 422 enters the locking hole 2131, switching to the working state. Figure 1 The state shown;

[0050] When switching from the usage state to the storage state, Figure 2 In this state, when button 431 is pressed, the driven locking member 42 is engaged. Figure 2 Move the bolt 422 to the left, disengaging it from the locking hole 2131; then rotate the telescopic rod assembly, causing it to enter the storage slot 11. The bolt 422 then presses against the riser 212 to prevent the telescopic rod assembly from rotating. Figure 2 As shown.

[0051] As a further improvement of this utility model: one end of the lock body 421 where the lock tongue 422 is provided is located at the stop notch 425, and the lock shell 41 is provided with a stop protrusion 414; the stop notch 425 and the stop protrusion 414 cooperate to stop.

[0052] As a further improvement of this utility model: the locking tongue 422 is provided with a guide slope 4221, which cooperates with the riser 212; Figure 5 In the state shown, when the telescopic rod assembly 2 rotates, the riser 212 drives the guide inclined surface 4221.

[0053] As a further improvement of this utility model: the hinge end of the storage groove 11 is provided with a cavity 13; the locking seat 213 is fitted into the cavity 13.

[0054] As a further improvement of this utility model: the driving component 43 and the driven locking component 42 are both integrally formed from metal materials; lubricating oil is provided between the active inclined surface and the driven inclined surface, which effectively extends the service life of the locking device 4 and improves the smoothness of the unlocking operation.

[0055] As a further improvement to this utility model: such as Figure 7 As shown, the base 1 is cylindrical and also includes a handle 5 and a connector 6. The handle 5 is arc-shaped and has sliding holes 51 at both ends.

[0056] Connector 6 includes a connecting plate 61 and a circular head 62;

[0057] The connecting plate 61 passes through the sliding hole 51 and is fixed to the base 1. Under normal conditions, the handle 5 is in contact with the base 1 and the connecting plate 61 is in contact with one end of the sliding hole 51. When the fan is in the lifting state, the handle 5 and the base 1 are separated, and the other end of the connecting plate 61 is engaged with the sliding hole 51.

[0058] As a further improvement to this utility model: such as Figure 1 and Figure 5 As shown, it also includes a remote control 7. The top left side of the base 1 is provided with a groove 16 that cooperates with the remote control 7. The lower end surface of the groove 16 is provided with a face 161. The face is provided to facilitate the removal of the remote control 7 that is fitted in the groove.

[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A foldable fan comprising a base, an extension pole assembly, a fan head and a locking device, characterized in that: The base is provided with a receiving slot with an upper opening, and a hinge hole is arranged on the inner wall of one end of the receiving slot; The telescopic rod assembly comprises a T-shaped hinge seat and a telescopic rod part, the T-shaped hinge seat comprises a horizontal pipe, a vertical pipe and a locking seat, both ends of the horizontal pipe are provided with half shafts, the half shafts are rotationally matched with the hinge hole, and one side of the locking seat is provided with a locking hole; The locking device is arranged in the base, the locking bolt of the locking device is telescopically arranged on the wall plate of the receiving slot, in the use state of the fan, the vertical pipe is perpendicular to the horizontal plane of the base, the locking bolt of the locking device is inserted into the locking hole of the locking seat, and the locking device is locked with the locking seat; In the storage state of the fan, the telescopic rod assembly is embedded into the receiving slot, and the locking bolt of the locking device is pressed on the vertical pipe to lock the telescopic rod assembly in the receiving slot.

2. The fan of claim 1 wherein: The locking device comprises a lock shell, a driven lock piece, a driving piece and a spring, the lock shell is hollow and has an upper opening, comprises a locking bolt guide hole arranged on one end plate and a spring column seat arranged on the other end plate; The driven lock piece comprises a hollow upper and lower opening lock body part, a locking bolt arranged on one end of the lock body part and a spring column seat arranged on the other end, and a driven inclined surface is arranged on the wall plate of one end of the lock body part; The driving piece comprises a driving body and a button, and the driving body comprises a driving inclined surface and a sliding body part; A guide hole is arranged on one wall plate of the receiving slot, and a button hole is arranged on the top plate; The driven lock piece is arranged in the lock shell, the locking bolt is matched with the locking bolt guide hole, the spring column seat is inserted into one end of the spring, and the lock body part is slidably matched with the inner cavity of the lock shell; the driving body is arranged in the lock body part, the driving inclined surface and the driven inclined surface are slidably matched, the top of the lock shell is fixed with the top plate of the base, the locking bolt is extended into the receiving slot through the locking bolt guide hole and the guide hole, the button is extended out of the button hole, and in the use state, the locking bolt is matched with the locking hole, and in the storage state, the locking bolt is matched with the vertical pipe.

3. The fan of claim 2 wherein: A vertical guide hole and a guide cylinder are arranged on the bottom plate of the driven lock piece, the vertical guide hole intersects with the guide cylinder and extends downward; The driving body further comprises a guide part and a guide rod, the width of the sliding body part is greater than that of the guide part, the sliding body part is matched with the bottom plate of the lock shell to stop, and the guide part is slidably matched with the vertical guide hole, the guide rod and the guide cylinder.

4. The fan of claim 3 wherein: One end of the lock body part provided with the locking bolt is arranged in a stop gap, and a stop protrusion is arranged in the lock shell; the stop gap and the stop protrusion are matched to stop.

5. A fan as claimed in any one of claims 2 to 4, wherein: A guide inclined surface is arranged on the locking bolt.

6. The fan of claim 5 wherein: An avoidance cavity is arranged in the hinge end of the receiving slot; the locking seat is embedded in the avoidance cavity when the fan is stored.

7. The fan of claim 6 wherein: The driving piece and the driven lock piece are integrally made of a metal material; lubricating oil is arranged between the driving inclined surface and the driven inclined surface.

8. The fan of claim 7 wherein: The telescopic rod part is matched with the vertical pipe to be telescopic; the fan head is hinged with the telescopic rod part.

9. The fan of claim 8 wherein: A handle and a connecting piece are further included, the handle is in a circular arc shape and is provided with sliding holes at both ends; the connecting piece comprises a connecting plate and a circular head part; The connecting plate is fixed with the base through the sliding holes, in the normal state, the handle is attached with the base, and the connecting plate is attached with one end of the sliding hole; in the carrying state, the handle is separated from the base, and the connecting plate is matched with the other end of the sliding hole.

10. The fan of claim 9 wherein: A remote controller is further included, a groove matched with the remote controller is arranged on the top surface of the base, and a slope is arranged on the lower end surface of the groove.

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