Folding fan

Abstract

The folding fan 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] The invention relates to the technical field of fans, in particular to a folding fan. Background Art

[0002] At present, the prior art Chinese invention patent ZL201910759811.2 discloses a foldable fan, which includes: a chassis, a fan body arranged on one side of the chassis; a telescopic locking mechanism with one end rotatably assembled with the chassis and the other end assembled with the fan body, when the fan body is in use, the telescopic locking mechanism is fixed to the chassis and used to support the fan body after being fixed; and a flip locking mechanism with one end assembled with the fan body and the other end assembled with the telescopic end; a storage groove is arranged on the chassis, when the fan is folded, the telescopic locking mechanism and the flip locking mechanism are placed in the storage groove after being flipped and folded. The locking mechanism includes: an outer sleeve that is sleeved on the inner sleeve and can rotate relative to the inner sleeve to lock or unlock the inner sleeve and the chassis; and a limiting structure arranged between the inner sleeve and the outer sleeve for limiting the outer sleeve to move on the inner sleeve. A locking piece is provided between the outer sleeve and the chassis, and the locking piece is used to increase 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, the outer sleeve presses the locking piece against the chassis to lock the inner sleeve; when the outer sleeve rotates relative to the inner sleeve and moves away from the chassis, the outer sleeve releases the pressing of the locking piece to release the locking of the inner sleeve. The outer surface of the inner sleeve is provided with an external thread, and the inner surface of the outer sleeve is provided with a corresponding internal thread; the outer sleeve can be locked and fixed to the inner sleeve through a threaded structure that cooperates with the inner sleeve. The existing problems are: ① The locking mechanism of the threaded structure is inconvenient to operate, lock or unlock; ② The telescopic locking mechanism and the flip locking mechanism are placed in the storage slot after being flipped and folded. Since there is no device to lock the telescopic locking mechanism in the storage slot, when the fan in the folded state is tilted or the fan is moved or transported, the telescopic locking mechanism will automatically detach from the storage slot and require additional ropes to tighten; ③ The outer sleeve presses the locking piece against the chassis of the fan, and the locking piece presses and rubs against the surface of the chassis, thereby damaging the chassis. Summary of the invention

[0003] The purpose of the present invention is to provide a folding fan which is easy to operate and unfold for use, and the locking device also has the function of locking the vertical pipe in the storage state.

[0004] The fan and telescopic rod assembly automatically locks.

[0005] The present invention is implemented as follows: a folding fan comprises a base, a telescopic rod assembly, a fan head and a locking device, wherein the base is provided with a receiving slot with an upper opening, and an inner wall at one end of the receiving slot is provided with a hinge hole;

[0006] The telescopic rod assembly includes a T-shaped hinge seat and a telescopic rod portion, the T-shaped hinge seat includes a transverse tube, a vertical tube and a locking seat, both ends of the transverse tube are provided with half shafts, the half shafts are rotatably matched with the hinge hole; one side of the locking seat is provided with a locking hole, the fan head is hinged with the telescopic rod portion, and the telescopic rod portion is telescopically matched with the vertical tube;

[0007] The locking device is arranged in the base, and the locking tongue of the locking device is arranged on the wall plate of the storage groove and can be telescopically movable; when the fan is in use, the vertical pipe is perpendicular to the horizontal plane of the base, the locking tongue on the locking device is inserted into the locking hole on the locking seat, and the locking device is locked with the locking seat; when the fan is stored, the telescopic rod assembly is embedded in the storage groove, and the locking tongue on the locking device presses the vertical pipe to lock the telescopic rod assembly in the storage groove; the fan head is rotated to make the fan blade cover close to the base, and the fan head and the base are folded together.

[0008] Specifically, the locking device comprises a lock housing, a driven lock member, a driving member and a spring; the lock housing is hollow with an upper opening, comprises a lock tongue guide hole arranged on one end plate, a spring column seat arranged on the other end plate, and a vertical guide hole and a guide cylinder arranged on the bottom plate; the vertical guide hole intersects with the guide cylinder and extends downward;

[0009] The driven lock element comprises a hollow lock body with upper and lower openings, a lock tongue arranged at one end of the lock body and a spring column seat arranged at the other end, and a driven inclined surface is arranged on a wall plate at one end of the lock body;

[0010] The driving member comprises a driving body and a button. The driving body comprises an active inclined plane, a sliding body, a guide part and a guide rod. The width of the sliding body is greater than that of the guide part so as to limit the vertical distance of the button's descent.

[0011] A locking hole is provided on one side of the locking seat; a guide hole is provided on a wall plate of a storage slot of the base, and a button hole is provided on a top plate.

[0012] The driven lock element is arranged in the lock shell, the lock tongue cooperates with the lock tongue guide hole, the spring column seat is inserted into the spring, and the lock body part and the inner cavity of the lock shell are slidably matched; the driving body is arranged in the sliding body part, the active inclined surface and the driven inclined surface are slidably matched, the sliding body part and the bottom plate of the lock shell cooperate with the stop, and the guide part and the vertical guide hole and the guide rod and the guide cylinder are slidably matched; the lock shell is fixed to the top plate of the base, the lock tongue extends into the storage groove through the lock tongue guide hole and the guide hole, and the button extends from the button hole; the lock tongue cooperates with the locking hole in the use state, and cooperates with the vertical pipe in the storage state.

[0013] In the storage state, grasp the fan head and rotate the telescopic rod assembly, the vertical tube pushes the lock tongue to make the driven lock piece move and retract, and then continue to rotate, the vertical tube crosses the lock tongue and separates from the lock tongue; as the telescopic rod assembly rotates to be perpendicular to the base, the locking hole and the lock tongue are aligned, the lock tongue automatically extends into the locking hole, the locking seat is locked with the locking device, and the state is converted to use;

[0014] When the device is converted to the storage state from the use state, the button is pressed to cause the driving member to drive the driven locking member to move and retract, and the lock tongue leaves the locking hole; then the telescopic rod assembly is rotated, the telescopic rod assembly enters the storage groove, and the lock tongue presses the vertical pipe to lock the telescopic rod assembly.

[0015] As a further improvement of the present invention: one end of the lock tongue provided on the lock body is provided on the stop notch, and a stop protrusion is provided in the lock shell; the stop notch and the stop protrusion cooperate to stop.

[0016] The driving member and the driven locking member are both made of metal material in one piece, and lubricating oil is provided between the active inclined surface and the driven inclined surface, so that the locking device is durable and has reliable performance.

[0017] As a further improvement of the present invention: a guiding inclined surface is provided on the locking tongue, and the guiding inclined surface cooperates with the vertical pipe; when the telescopic rod assembly rotates, it is convenient for the vertical pipe to push the guiding inclined surface.

[0018] As a further improvement of the present invention: a void cavity is provided in the hinged end of the storage groove; and the locking seat is engaged with the void cavity.

[0019] As a further improvement of the present invention: the driving member and the driven locking member are both made of metal material in one piece; and lubricating oil is provided between the active inclined surface and the driven inclined surface.

[0020] As a further improvement of the present invention: the base is cylindrical, and further comprises a handle and a connecting piece, the handle is arc-shaped and has sliding holes at both ends; the connecting piece comprises a connecting plate and a circular head;

[0021] The connecting plate passes through the sliding hole and is fixed to the base. In normal state, the handle fits the base and the connecting plate fits one end of the sliding hole. In the carrying state, the handle and the base are separated, and the connecting plate fits the other end of the sliding hole.

[0022] As a further improvement of the present invention, a remote controller is also included, the top surface of the base is provided with a groove matching with the remote controller, and the lower end surface of the groove is provided with a convex surface to facilitate taking out the remote controller embedded in the groove.

[0023] The present invention provides a folding fan. Due to the structure, when the fan is switched from the use state to the storage state, the button on the base is pressed to retract the lock tongue from the locking hole, the telescopic rod assembly is unlocked, the telescopic rod part is rotated to insert the telescopic rod assembly into the storage groove of the base, the lock tongue is pressed against the vertical pipe to limit the movement of the telescopic rod assembly, the fan head is rotated to fold the fan head on the base, and the air inlet cover on the fan head is in close contact with the surface of the base; when the fan is switched from the storage state to the use state, the fan head is unfolded by hand, the vertical pipe is rotated by force and disengaged from the lock tongue, and the telescopic rod assembly leaves the storage groove until the telescopic rod assembly rotates to a position perpendicular to the horizontal plane of the base, and the lock tongue of the locking device is inserted into the locking hole on the locking seat to lock, thereby automatically locking the telescopic rod assembly. Compared with the prior art, the present folding fan has the following effects:

[0024] 1. It is very convenient to convert the fan from the storage state to the use state or from the use state to the storage state.

[0025] 2. When the fan is in the stored state, the locking device locks the telescopic rod assembly in the storage slot, effectively preventing the folded fan from unfolding by itself when the fan tilts or overturns.

[0026] 3. The locking seat cooperates with the avoidance cavity 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 to ensure that the center of gravity of the fan is more balanced.

[0027] 4. It also avoids the situation in which the locking mechanism in the prior art damages the chassis.

[0028] Folding fan BRIEF DESCRIPTION OF THE DRAWINGS

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

[0030] Figure 2 It is a cross-sectional view of the utility model.

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

[0032] Figure 4 It is a three-dimensional diagram of the storage state of the present invention

[0033] Figure 5 It is a top view of the present invention in the stored state (without the fan head).

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

[0035] Figure 7 It is a three-dimensional exploded view of the present invention.

[0036] Figure 8It is a three-dimensional diagram of the locking device of the present invention.

[0037] Fig. 9 It is a three-dimensional exploded view of the locking device of the present invention. DETAILED DESCRIPTION

[0038] In order to make the technical solutions and technical effects of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. The described implementation methods are only part of the embodiments of the present invention, not all embodiments.

[0039] The terms "connection", "setting" and "installation" used in the present invention should be understood in a broad sense. 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 also be a direct connection, an indirect connection through an intermediate medium, or it can also be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly specified and limited, for ordinary technicians in this technical field, the specific meanings of the above terms in the present invention can be understood according to actual conditions. The terms "inside", "outside", "front", "back", "up", "down", "left" and "right" etc. describe the orientation or position relationship of the device / component indicated in the drawings, rather than emphasizing that the indicated component / device must have a specific orientation structure and operation, and cannot be understood as limiting the scope of protection of the present invention. The terms "first", "second", "third" etc. are only used to distinguish technical features, and cannot be understood as indicating or implying the relative importance, the number of technical features, or the order of technical features.

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

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

[0042] The locking device 4 is arranged in the base 1, and the half shaft is rotatably matched with the hinge hole 12; in the use state, the vertical pipe 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 on the vertical pipe 212 to lock the telescopic rod assembly in the storage groove, and the fan head 3 is rotated to make the fan blade cover close to the base 1, and the fan head 3 and the base 1 are folded together.

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

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

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

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

[0047] The driven lock element 42 is arranged in the lock housing 41, the lock tongue cooperates with the lock tongue guide hole 411, the spring column seat is inserted into the spring 45, and the lock body 421 cooperates with the inner cavity of the lock housing 41 in a sliding manner; the driving body is arranged in the lock body 421, the active inclined surface 432 and the driven inclined surface 423 cooperate in a sliding manner, the sliding body 433 cooperates with the bottom plate of the lock housing 41 to stop, and the guide part 434 cooperates with the vertical guide hole 412 and the guide rod 435 and the guide cylinder 413 in a sliding manner; the lock housing 41 is fixed to the top plate of the base 1, the lock tongue 422 extends into the storage groove 11 through the lock tongue guide hole 411 and the guide hole 14, the button 431 extends from the button hole 15, and the lock tongue 422 cooperates with the locking hole 2131 or the lock tongue 422 cooperates with the vertical pipe 212;

[0048] like Figure 2 In the use state shown, the locking tongue 422 extends into the locking hole 2131, as shown in FIG. Figure 6 In the stowed state shown, the locking tongue 422 cooperates with the riser 212;

[0049] In the storage state, the telescopic rod assembly 2 is directly rotated, the vertical tube 212 drives the locking tongue 422, and the driven locking member 42 is in the Figure 5The vertical tube 212 and the locking tongue 422 are separated, and then the locking tongue 422 enters the locking hole 2131 and is converted into a use state. Figure 1 The status shown;

[0050] When switching from the use state to the storage state, Figure 2 In this state, the button 431 is pressed, and the driven lock member 42 is in Figure 2 Then rotate the telescopic rod assembly, the telescopic rod assembly enters the storage groove 11, and then the lock tongue 422 presses against the riser 212 to prevent the telescopic rod assembly from rotating, such as Figure 2 shown.

[0051] As a further improvement of the present invention: one end of the lock tongue 422 of the lock body 421 is arranged at the stop notch 425, and a stop protrusion 414 is arranged in the lock shell 41; the stop notch 425 and the stop protrusion 414 cooperate to stop.

[0052] As a further improvement of the present invention: the locking tongue 422 is provided with a guiding inclined surface 4221, and the guiding inclined surface 4221 cooperates with the vertical pipe 212; Figure 5 In the state shown, when the telescopic rod assembly 2 rotates, the vertical tube 212 drives the guiding inclined surface 4221 .

[0053] As a further improvement of the present invention, a cavity 13 is provided in the hinged end of the storage slot 11 ; and the locking seat 213 is engaged with the cavity 13 .

[0054] As a further improvement of the present invention: the driving member 43 and the driven locking member 42 are both made of metal material in one piece; lubricating oil is provided between the active inclined surface and the driven inclined surface, which effectively prolongs the service life of the locking device 4 and the smoothness of the unlocking operation.

[0055] As a further improvement of the present invention: Figure 7 As shown, the base 1 is cylindrical, and further includes a handle 5 and a connecting member 6. The handle 5 is arc-shaped, and sliding holes 51 are provided at both ends.

[0056] The connecting member 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 carrying state, the handle 5 and the base 1 are separated, and the connecting plate 61 is matched with the other end of the sliding hole 51.

[0058] As a further improvement of the present invention: Figure 1 and Figure 5As shown, a remote controller 7 is also included. A groove 16 cooperating with the remote controller 7 is provided on the left side of the top surface of the base 1. A convex surface 161 is provided on the lower end surface of the groove 16. The convex surface is provided to facilitate taking out the remote controller 7 embedded in the groove.

[0059] Although the 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 claims and their equivalents.

Claims

1. A folding fan, comprising a base, a telescopic rod assembly, a fan head and a locking device, characterized in that: The base is provided with a storage groove with an upper opening, and an inner wall at one end of the storage groove is provided with a hinge hole; The telescopic rod assembly includes a T-shaped hinge seat and a telescopic rod part. The T-shaped hinge seat includes a transverse tube, a vertical tube and a locking seat. Both ends of the transverse tube are provided with half shafts, and the half shafts are rotatably matched with the hinge hole. A locking hole is provided on one side of the locking seat. The locking device is arranged in the base, and the locking tongue of the locking device is arranged on the wall plate of the storage slot to be telescopic and movable; when the fan is in use, the vertical pipe is perpendicular to the horizontal plane of the base, the locking tongue on the locking device is inserted into the locking hole on the locking seat, and the locking device is locked with the locking seat; When the fan is in the stored state, the telescopic rod assembly is embedded in the storage groove, and the locking tongue of the locking device presses against the vertical pipe to lock the telescopic rod assembly in the storage groove.

2. A folding fan according to claim 1, characterized in that: The locking device comprises a lock housing, a driven lock member, a driving member and a spring; the lock housing is hollow and has an upper opening, and comprises a lock tongue guide hole arranged on one end plate and a spring column seat arranged on the other end plate; The driven lock element comprises a hollow lock body with upper and lower openings, a lock tongue arranged at one end of the lock body and a spring column seat arranged at the other end, and a driven inclined surface is arranged on a wall plate at one end of the lock body; The driving member includes a driving body and a button, and the driving body includes an active inclined surface and a sliding body portion; A guide hole is provided on a wall plate of the storage slot, and a button hole is provided on the top plate; The driven lock element is arranged in the lock shell, the lock tongue cooperates with the lock tongue guide hole, the spring column seat is inserted into one end of the spring, and the lock body part and the inner cavity of the lock shell are slidably matched; the driving body is arranged in the lock body part, the active inclined surface and the driven inclined surface are slidably matched, the top of the lock shell is fixed to the top plate of the base, the lock tongue extends into the storage groove through the lock tongue guide hole and the guide hole, and the button extends from the button hole; the lock tongue cooperates with the locking hole in the use state, and cooperates with the vertical pipe in the storage state.

3. A folding fan according to claim 2, characterized in that: A vertical guide hole and a guide cylinder are provided on the bottom plate of the driven lock member; the vertical guide hole intersects with the guide cylinder and extends downward; The driving body also includes a guide part and a guide rod. The width of the sliding body is greater than that of the guide part. The sliding body cooperates with the bottom plate of the lock shell to stop. The guide part slides with the vertical guide hole and the guide rod and the guide cylinder.

4. A folding fan according to claim 3, characterized in that: One end of the lock tongue is arranged on the lock body part and is arranged on the stop notch. A stop protrusion is arranged in the lock shell. The stop notch and the stop protrusion cooperate with each other for stop.

5. A folding fan according to any one of claims 2 to 4, characterized in that: A guiding inclined surface is arranged on the locking tongue.

6. A folding fan according to claim 5, characterized in that: An air-avoiding cavity is arranged in the hinged end of the storage groove; when the fan is stored, the locking seat is engaged with the air-avoiding cavity.

7. A folding fan according to claim 6, characterized in that: The driving member and the driven locking member are both made of metal material in one piece; lubricating oil is provided between the active inclined surface and the driven inclined surface.

8. A folding fan according to claim 7, characterized in that: The telescopic rod cooperates with the vertical pipe to telescope; the fan head is hinged to the telescopic rod.

9. A folding fan according to claim 8, characterized in that: It also includes a handle and a connecting piece, the handle is arc-shaped and has sliding holes at both ends; the connecting piece includes a connecting plate and a circular head; The connecting plate passes through the sliding hole and is fixed to the base. In normal state, the handle fits the base and the connecting plate fits one end of the sliding hole. In the carrying state, the handle and the base are separated, and the connecting plate fits the other end of the sliding hole.

10. A folding fan according to claim 9, characterized in that: It also includes a remote control, wherein the top surface of the base is provided with a groove that matches the remote control, and the lower end surface of the groove is provided with a convex surface.

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