Blowing pipe turning structure and vehicle-mounted blower

Abstract

A blowing pipe turning structure (200) and a vehicle-mounted blower (100). The blowing pipe turning structure (200) comprises: a turning motor (1) provided with a motor shaft; a fixed base (2) fixed relative to a vehicle-mounted blower (100); a transmission assembly (3) comprising a driving wheel (31), a driven wheel (32) and a synchronous belt (33) connecting the driving wheel (31) and the driven wheel (32), the driving wheel (31) being in fitting connection to the motor shaft, and the driven wheel (32) being mounted on the fixed base (2) and being able to rotate relative to the fixed base (2); and a blowing pipe (4) connected to the driven wheel (32) so as to turn along with the driven wheel (32). The fixed base (2) is provided with a signal switch (9), the signal switch (9) being electrically connected to the turning motor (1). The driven wheel (32) is correspondingly provided with a trigger part (321), the trigger part (321) being configured to rotate along with the driven wheel (32). When the trigger part (321) triggers the signal switch (9), the turning motor (1) stops working. The blowing pipe turning structure (200) can limit the turning angle of the blowing pipe (4), so as to prevent the blowing pipe (4) from hitting a vehicle body, has high driving force and driving accuracy, and is easy to maintain.

Description

Blowpipe turning structure and vehicle-mounted hair dryer TECHNICAL FIELD

[0001] The utility model relates to a kind of blowpipe turning structure and vehicle-mounted hair dryer, belong to vehicle-mounted hair dryer technical field. BACKGROUND

[0002] The existing vehicle-mounted hair dryer is mostly controlled by manual way when turning, so it can be collided to the body when adjusting the turning of vehicle-mounted hair dryer, and vehicle-mounted hair dryer cannot automatically identify and limit the turning angle;In addition, the common transmission mode of the blowpipe of vehicle-mounted hair dryer has gear transmission, belt transmission, chain transmission, which has low degree of freedom, maintenance difficulty, small transmission force and low transmission precision.

[0003] Therefore, it is necessary to improve the existing blowpipe turning structure and vehicle-mounted hair dryer to solve the above problems.

[0004] UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of blowpipe turning structure, which can limit the turning angle of blowpipe, avoid blowpipe from colliding to the body, and also has high transmission force and transmission precision, and is easy to maintain.

[0006] To achieve the above object, the utility model provides a kind of blowpipe turning structure, applied to vehicle-mounted hair dryer, comprising:

[0007] Turning motor, provided with motor shaft;

[0008] Fixed seat, fixed relative to the vehicle-mounted hair dryer;

[0009] Transmission assembly, including driving wheel, driven wheel and synchronous belt connecting the driving wheel and the driven wheel, the driving wheel is matched with the motor shaft, the driven wheel is installed on the fixed seat and can rotate relative to the fixed seat;

[0010] Blowpipe, connected with the driven wheel to follow the turning of the driven wheel;

[0011] Among them, signal switch is provided on the fixed seat, the signal switch is electrically connected with the turning motor, the trigger part is correspondingly provided on the driven wheel, the trigger part is configured to rotate with the driven wheel, and the turning motor stops working when the trigger part triggers the signal switch.

[0012] As a further improvement of the utility model, the signal switch is provided with two, the two signal switches are symmetrical and close to the driving wheel, and the trigger part is also correspondingly provided with two to correspond with two signal switches, to limit the turning angle of the driven wheel.

[0013] As a further improvement of the utility model, the trigger part is arranged on the outer peripheral wall of the driven wheel, the signal switch comprises a switch body, a pressing arm and a button between the switch body and the pressing arm, the first end of the pressing arm is connected with the switch body, the second end of the pressing arm protrudes towards the driven wheel, when the trigger part rotates to be pressed with the second end of the pressing arm, the second end of the pressing arm moves towards the switch body, the pressing arm presses the button, and the signal switch is triggered.

[0014] As a further improvement of the utility model, the button is movably arranged on the switch body and protrudes towards the pressing arm side, in the initial state, the button is supported between the switch body and the pressing arm, and the second end of the pressing arm is away from the switch body.

[0015] As a further improvement of the utility model, the top of the driven wheel is provided with a clamping part extending outwards from the outer peripheral wall thereof, the fixing seat is provided with a receiving groove, the clamping part and the signal switch are received in the receiving groove, and the trigger part is arranged on the outer peripheral wall of the clamping part.

[0016] As a further improvement of the utility model, the trigger part is integrally arranged with the clamping part, the trigger part is provided with a bevel, and the bevel is used for guiding the trigger part to press the signal switch, so that the signal switch is triggered.

[0017] As a further improvement of the utility model, the steering motor is fixed through the mounting frame, and the motor shaft protrudes out of the mounting frame and is in interference fit with the driving wheel, so as to drive the driving wheel to rotate synchronously.

[0018] As a further improvement of the utility model, the pipe steering structure further comprises a tensioning assembly, the tensioning assembly comprises two connecting plates, an elastic piece connecting the two connecting plates, and two tensioning wheels respectively mounted on the two connecting plates, the two connecting plates are separately arranged on the two sides of the driving wheel, the first end of each connecting plate is fixedly mounted on the mounting frame, and the second end of each connecting plate extends towards the driven wheel.

[0019] As a further improvement of the utility model, the tensioning wheel is connected to the second end of the connecting plate, the tensioning wheel is located between the driving wheel and the driven wheel, and abuts against the outer side of the synchronous belt, so as to tighten the synchronous belt, and the elastic piece is arranged opposite to the tensioning wheel and connects the second ends of the two connecting plates.

[0020] Another purpose of the utility model is to provide a vehicle-mounted hair dryer with the above pipe steering structure.

[0021] In order to achieve the above object, the utility model provides a vehicle-mounted hair dryer, including fixed frame, culvert structure and blow pipe steering structure, the fixed frame is located between the culvert structure and the blow pipe steering structure, the culvert structure includes motor, wind blade connected with motor and flow guide cone, is used for air inlet,

[0022] Steering motor is equipped with motor shaft;

[0023] Fixed seat is relative to the vehicle-mounted hair dryer fixed;

[0024] Transmission assembly includes driving wheel, driven wheel and the synchronous belt of connecting driving wheel and driven wheel, driving wheel is matched with motor shaft and is connected, driven wheel is installed on the fixed seat, and can rotate relative to the fixed seat;

[0025] Blow pipe is connected with driven wheel to follow driven wheel steering;

[0026] Wherein, the fixed seat is equipped with signal switch, the signal switch is electrically connected with the steering motor, and the trigger part is correspondingly provided on the driven wheel, the trigger part is configured to rotate with the driven wheel, and when the trigger part triggers the signal switch, the steering motor stops working.

[0027] The utility model discloses the blow pipe steering structure of the utility model, one aspect utilizes synchronous belt to connect driving wheel and driven wheel, realizes transmission, makes blow pipe steering, has higher transmission force and transmission accuracy, and is easy to maintain, on the other hand, by setting signal switch, and signal switch is set to electrically connected with steering motor, so that when the trigger part on the driven wheel rotates to trigger the signal switch, the steering motor stops working, realizes the restriction of blow pipe rotation angle, avoids blow pipe to hit the car body. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 is a three-dimensional structure schematic diagram of the utility model vehicle-mounted hair dryer.

[0029] Fig. 2 is the sectional view of Fig. 1.

[0030] Fig. 3 is a three-dimensional structure schematic diagram of blow pipe steering structure in Fig. 1.

[0031] Fig. 4 is the internal structure schematic diagram of blow pipe steering structure in Fig. 3.

[0032] Fig. 5 is the assembly drawing of fixed seat and signal switch in Fig. 4.

[0033] Fig. 6 is a three-dimensional structure schematic diagram of driven wheel in Fig. 4.

[0034] Fig. 7 is the assembly drawing of connecting piece and blow pipe in Fig. 4.

[0035] Fig. 8 is a perspective structural schematic view of the signal switch in Fig. 4.

[0036] Fig. 9 is an assembly view of the steering motor, mounting frame and tensioning assembly in Fig. 4. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in detail below in combination with the drawings and specific embodiments.

[0038] Please refer to Figs. 1-2, the utility model discloses a vehicle-mounted hair dryer 100, including fixed frame 400, duct structure 300 and blowpipe steering structure 200. The fixed frame 400 is located between the duct structure 300 and the blowpipe steering structure 200, for installing the vehicle-mounted hair dryer 100 to the lawn mower (not shown). The duct structure 300 includes motor 301, fan blade 302 connected with the motor 301 and flow guide cone 303, for air intake. The blowpipe steering structure 200 includes steering motor 1, fixed seat 2, transmission assembly 3 and blowpipe 4, the blowpipe 4 can steer air outlet.

[0039] The lawn mower (not shown) in the embodiment is provided with a controller (not shown), the controller is provided with a joystick to control the left and right steering of the blowpipe 4, the controller is internally provided with a Bluetooth transmitter, the vehicle-mounted hair dryer 100 is provided with a control panel (not shown), the steering motor 1 is electrically connected with the control panel, the control panel is provided with a Bluetooth receiver, and the start-stop and rotation direction of the steering motor 1 are controlled through Bluetooth signal transmission. The controller and the control panel are disconnected, the rotation signal of the steering motor 1 is sent through Bluetooth, so that the control is not restricted by the length of the wire, and the control is more convenient.

[0040] As shown in Figs. 3-4, the fixed seat 2 is fixed relative to the vehicle-mounted hair dryer 100, that is, the fixed seat 2 is fixedly installed on the fixed frame 400, the transmission assembly 3 includes driving wheel 31, driven wheel 32 and synchronous belt 33 connecting the driving wheel 31 and the driven wheel 32, the steering motor 1 is provided with a motor shaft (not shown), the driving wheel 31 is connected with the motor shaft, the driven wheel 32 is installed on the fixed seat 2 and can rotate relative to the fixed seat 2, the blowpipe 4 is connected with the driven wheel 32 to follow the steering of the driven wheel 32.

[0041] Specifically, the steering motor 1 is fixed by a mounting bracket 5, the mounting bracket 5 is fixedly connected with the fixed frame 400, the motor shaft protrudes from the mounting bracket 5 and is in interference fit with the driving wheel 31 to drive the driving wheel 31 to rotate synchronously, the driving wheel 31 is press-fitted on the motor shaft to prevent the driving wheel 31 from falling off when the driving wheel 31 rotates with the steering motor 1, and the driving wheel 31 drives the driven wheel 32 to rotate through the synchronous belt 33, so that the transmission force and transmission accuracy are high, and maintenance is easy. The blowing pipe 4 is fixedly connected with the driven wheel 32 through a connecting piece 6, one end of the connecting piece 6 is annularly arranged outside the driven wheel 32 and is fixedly connected through a fastener 61, the blowing pipe 4 is sleeved on the other end of the connecting piece 6 and is fixedly connected through a clamp 7, and the blowing pipe 4 is convenient to disassemble.

[0042] Optionally, the blowing pipe 4 is made of rubber material to prevent the blowing pipe 4 from being damaged by impact, and the blowing pipe 4 has a net sandwiched layer inside to increase the wear resistance of the blowing pipe 4. The blowing pipe steering structure 200 further comprises a shell 8 connected with the fixed frame 400, and the shell 8 shields the steering motor 1, the transmission assembly 3 and the fixed seat 2 between the shell 8 and the fixed frame 400.

[0043] As shown in FIGS. 4-7, the fixed seat 2 is provided with signal switches 9, the signal switches 9 are electrically connected with the steering motor 1, the driven wheel 32 is correspondingly provided with trigger portions 321, the trigger portions 321 are configured to rotate with the driven wheel 32, and the steering motor 1 stops working when the trigger portions 321 trigger the signal switches 9. In this embodiment, the signal switches 9 are provided with two, the two signal switches 9 are symmetrical to each other and close to the driving wheel 31, and the trigger portions 321 are also provided with two to correspondingly cooperate with the two signal switches 9 to limit the rotation angle of the driven wheel 32.

[0044] Since the driven wheel 32 can rotate freely in the fixed seat 2, the two signal switches 9 are placed on the fixed seat 2 to limit the left and right positions, the two trigger portions 321 are arranged on the two sides of the driven wheel 32, and the trigger portions 321 are specifically arranged on the outer peripheral wall of the driven wheel 32. When the synchronous belt 33 drives the driven wheel 32 to rotate, the trigger portions 321 trigger the signal switches 9 to send signals to the control panel to close the steering motor 1 and stop rotation, so as to limit the left and right steering positions to prevent the blowing pipe 4 from colliding with the parts of the mower.

[0045] It can be understood that the positions of the two trigger portions 321 are arranged according to the relative positions of the blowing pipe 4 and the mower, and the rotation is stopped before the blowing pipe 4 is about to collide with the mower, and the left and right positions are generally limited to 30-70°.

[0046] In the embodiment, the top of the driven wheel 32 is provided with a clamping portion 322 extending outwardly from the outer peripheral wall thereof, the fixing seat 2 is provided with a receiving groove 21, the clamping portion 322 and the signal switch 9 are received in the receiving groove 21, the trigger portion 321 is arranged on the outer peripheral wall of the clamping portion 322, the clamping portion 322 is supported in the receiving groove 21 and can rotate in the receiving groove 21. The trigger portion 321 is arranged in one piece with the clamping portion 322, the trigger portion 321 is provided with a bevel for guiding the trigger portion 321 to press the signal switch 9 so that the signal switch 9 is triggered.

[0047] In other embodiments, the fixing seat 2 can also not be provided with the receiving groove 21, the clamping portion 322 is directly supported on the surface of the fixing seat 2, and the signal switch 9 is also directly mounted on the surface of the fixing seat 2, as long as the driven wheel 32 can rotate relative to the fixing seat 2 and the trigger portion 321 can trigger the signal switch 9.

[0048] As shown in FIG. 8, the signal switch 9 comprises a switch body 91, a pressing arm 92 and a button 93 between the switch body 91 and the pressing arm 92, the first end of the pressing arm 92 is connected with the switch body 91, the second end thereof protrudes towards the driven wheel 32, when the trigger portion 321 rotates with the driven wheel 32 to press the second end of the pressing arm 92, the second end of the pressing arm 92 moves towards the switch body 91, the pressing arm 92 presses the button 93, and the signal switch 9 is triggered. The button 93 is movably arranged on the switch body 91 and protrudes towards the side of the pressing arm 92, in the initial state, the button 93 is supported between the switch body 91 and the pressing arm 92, and the second end of the pressing arm 92 is away from the switch body 91.

[0049] Specifically, when the driven wheel 32 drives the trigger portion 321 to rotate in the first direction and triggers the signal switch 9, after the signal switch 9 is triggered, a signal of prohibiting rotation in the first direction is sent to the control panel, the control panel turns off the steering motor 1, at this time, the driven wheel 32 can only be manipulated to rotate in the second direction opposite to the first direction, the driven wheel 32 drives the trigger portion 321 to rotate in the second direction, the signal switch 9 is triggered to be eliminated, i.e. the button 93 rebounds to the initial state, at this time, the signal switch 9 sends a signal of allowing rotation in the first direction to the control panel, and of course the driven wheel 32 can also rotate in the second direction.

[0050] As shown in Fig. 9, the blowpipe 4 turning structure further comprises a tensioning assembly 10, the tensioning assembly 10 comprises two connecting plates 101, an elastic member 102 connecting the two connecting plates 101, and two tensioning wheels 103 respectively installed on the two connecting plates 101, the elastic member 102 can be a tension spring, the two connecting plates 101 are separately arranged on both sides of the driving wheel 31, and the first end of each connecting plate 101 is fixedly installed on the mounting frame 5, and the second end extends towards the driven wheel 32. The tensioning wheel 103 is connected to the second end of the connecting plate 101, and the tensioning wheel 103 is located between the driving wheel 31 and the driven wheel 32 and abuts against the outer side of the synchronous belt 33 to tighten the synchronous belt 33, and the tensioning wheel 103 is located on the outer side of the synchronous belt 33, which can further reduce the risk of tooth skipping of the driving wheel 31 and the synchronous belt 33.

[0051] In the embodiment, the length of the synchronous belt 33 is slightly longer than the theoretical length, and the synchronous belt 33 is easy to replace and maintain when the tensioning wheel 103 is loosened; the elastic member 102 is arranged opposite to the tensioning wheel 103 and connects the second ends of the two connecting plates 101.

[0052] The tensioning of the synchronous belt 33 adopts a double-side tensioning structure, and one elastic member 102 connects the two tensioning wheels 103 on both sides. Due to the left and right rotation of the blowpipe 4, the stress side will change, and the stress side can pull the tensioning side through the elastic member 102. Compared with the traditional single-side tensioning, the single-side tensioning is more suitable for use in the case where the turning does not change. In the case where the turning changes, the single-side tensioning needs a large tensioning force and is easy to skip teeth. The double-side tensioning only needs a small tensioning force to avoid the tooth skipping phenomenon of the driving wheel 31 and the synchronous belt 33.

[0053] In summary, the blowpipe turning structure 200 of the utility model comprises a transmission assembly 3 comprising a driving wheel 31, a driven wheel 32 and a synchronous belt 33 connecting the driving wheel 31 and the driven wheel 32, the driving wheel 31 is connected with the motor shaft, the driven wheel 32 is installed on the fixed seat 2 and can rotate relative to the fixed seat 2, so that the transmission assembly 3 has high transmission power and transmission accuracy and is easy to maintain; on the other hand, the signal switch 9 is arranged on the fixed seat 2 and electrically connected with the turning motor 1, so that when the trigger part 321 on the driven wheel 32 rotates to trigger the signal switch 9, the turning motor 1 stops working, the rotation angle of the blowpipe 4 is limited, and the blowpipe 4 is prevented from colliding with the vehicle body.

[0054] The above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A blowpipe turning structure applied to a vehicle-mounted hair dryer, characterized by, The application relates to a steering structure of a handheld blowpipe of a vehicle-mounted hair dryer. The steering structure comprises a steering motor, a fixing base, a transmission assembly and a blowpipe. The fixing base is fixed relative to the vehicle-mounted hair dryer. The transmission assembly comprises a driving wheel, a driven wheel and a synchronous belt connecting the driving wheel and the driven wheel. The driving wheel is connected with the motor shaft. The driven wheel is installed on the fixing base and can rotate relative to the fixing base.

2. The nozzle turning structure of claim 1, wherein: The blowpipe is connected with the driven wheel to follow the rotation of the driven wheel.

3. The nozzle turning structure of claim 1, wherein: The fixing base is provided with a signal switch which is electrically connected with the steering motor.

4. The nozzle turning structure of claim 3, wherein: The driven wheel is provided with a trigger part which is configured to rotate with the driven wheel.

5. The nozzle redirecting structure of claim 1, wherein: When the trigger part triggers the signal switch, the steering motor stops working.

6. The nozzle turning structure of claim 5, wherein: The signal switch is provided with two symmetrical signal switches which are arranged close to the driving wheel.

7. The nozzle redirecting structure of claim 1, wherein: The trigger part is also provided with two trigger parts which are arranged to correspond with the two signal switches to limit the rotation angle of the driven wheel.

8. The nozzle turning structure of claim 7, wherein: The trigger part is arranged on the outer circumferential wall of the driven wheel.

9. The nozzle turning structure of claim 8, wherein: The signal switch comprises a switch body, a pressing arm and a button between the switch body and the pressing arm.

10. A vehicle-mounted hair dryer, comprising a fixing frame, a duct structure and a blowpipe turning structure, the fixing frame is located between the duct structure and the blowpipe turning structure, the duct structure comprises a motor, a fan blade connected with the motor and a flow guide cone, for air inlet, characterized in that, The first end of the pressing arm is connected with the switch body and the second end of the pressing arm protrudes towards the driven wheel. When the trigger part rotates to press the second end of the pressing arm, the second end of the pressing arm moves towards the switch body to press the button and trigger the signal switch. The button is movably arranged on the switch body and protrudes towards the pressing arm. In the initial state, the button is supported between the switch body and the pressing arm to move the second end of the pressing arm away from the switch body. The top of the driven wheel is provided with a clamping part which extends outward from the outer circumferential wall. The fixing base is provided with a receiving groove. The clamping part and the signal switch are received in the receiving groove. The trigger part is arranged on the outer circumferential wall of the clamping part. The trigger part is integrally arranged with the clamping part. The trigger part is provided with an inclined edge which is used to guide the trigger part to press the signal switch to trigger the signal switch. The steering motor is fixed through a mounting frame. The motor shaft protrudes from the mounting frame to be in interference fit with the driving wheel to drive the driving wheel to rotate synchronously. The blowpipe steering structure further comprises a tensioning assembly. The tensioning assembly comprises two connecting plates, an elastic member connecting the two connecting plates and two tensioning wheels respectively installed on the two connecting plates. The two connecting plates are arranged on the two sides of the driving wheel. The first end of each connecting plate is fixedly installed on the mounting frame and the second end of each connecting plate extends towards the driven wheel. The tensioning wheel is connected with the second end of the connecting plate. The tensioning wheel is located between the driving wheel and the driven wheel and abuts against the outer side of the synchronous belt to tighten the synchronous belt. The elastic member is arranged opposite to the tensioning wheel and connects the second ends of the two connecting plates. The blowpipe steering structure comprises a steering motor, a fixing base, a transmission assembly and a blowpipe. The transmission assembly comprises a driving wheel, a driven wheel and a synchronous belt connecting the driving wheel and the driven wheel, the driving wheel is connected with the motor shaft, the driven wheel is installed on the fixed seat and can rotate relative to the fixed seat; The blowing pipe is connected with the driven wheel to follow the rotation of the driven wheel; The fixed seat is provided with a signal switch, the signal switch is electrically connected with the steering motor, a trigger part is correspondingly provided on the driven wheel, the trigger part is configured to rotate with the driven wheel, and when the trigger part triggers the signal switch, the steering motor stops working.

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