Single-motor double-output-shaft tower fan with clutch function

Abstract

The single-motor double-output-shaft tower fan with the clutch function comprises a shell, an upper air drum, a lower air drum and a double-output-shaft motor, the upper air drum, the lower air drum and the double-output-shaft motor are arranged in the shell, a clutch structure and a connecting structure are arranged between the double-output-shaft motor and the upper air drum and between the double-output-shaft motor and the lower air drum respectively, and a clutch driving assembly is further arranged in the shell. The double-output-shaft motor drives the upper air drum and the lower air drum to rotate at the same time or independently drives the upper air drum or the lower air drum to rotate through the clutch driving assembly, and a heating element is further arranged at the position, located at the lower air drum, in the shell. According to the single-motor double-output-shaft tower fan with the clutch function, the clutch driving assembly enables the double-output-shaft motor to drive the upper air drum and the lower air drum to rotate at the same time or enables the double-output-shaft motor to independently drive the upper air drum or the lower air drum to rotate, the driving structures of the upper air drum and the lower air drum can be effectively simplified, the installation steps are simplified, and the installation efficiency is improved. The installation efficiency is improved, and the stability of transmission connection between the double-output-shaft motor and the upper air drum and the lower air drum is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a single-motor dual-shaft tower fan with a clutch function. Background Art

[0002] Currently, the cooling and heating tower fans on the market require two motors to drive the two wind drums to rotate separately during use, which leads to high production and maintenance costs. In addition, the connection stability between the motor and the wind drum is poor, and the wind drum is prone to shaking during the process of the motor driving the wind drum to rotate, which affects the service life of the wind drum and causes certain safety hazards. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the existing cooling and heating tower fans that require two motors to drive two rotations respectively, which leads to high production and maintenance costs, and poor connection stability between the motor and the blower. It is easy to shake during the process of the motor driving the blower to rotate, affecting the service life of the blower and causing certain safety hazards. A single-motor dual-output shaft tower fan with a clutch function is provided.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a single-motor double-shaft tower fan with a clutch function, comprising a shell, an upper wind drum and a lower wind drum arranged in sequence in the shell, and a double-shaft motor arranged between the upper wind drum and the lower wind drum and used to drive the upper wind drum and the lower wind drum to rotate simultaneously, the double-shaft motor and the upper wind drum and the lower wind drum respectively have a clutch structure and a connecting structure, and a clutch drive assembly is also provided in the shell, through which the double-shaft motor drives the upper wind drum and the lower wind drum to rotate simultaneously through the clutch structure and the connecting structure, or drives the double-shaft motor to rotate separately through the clutch structure or the connecting structure, and a heating element is also provided in the shell at the lower wind drum.

[0005] Furthermore, the clutch drive structure includes a mobile bracket arranged in the shell, a driving motor arranged at the bottom of the mobile bracket, a gear sleeved on the output shaft of the driving motor, and a slide rail arranged between the mobile bracket and the driving motor for limiting the mobile bracket, and the bottom of the mobile bracket has gear teeth for engaging with the gear for transmission.

[0006] Furthermore, the clutch structure includes an upper movable clutch and an upper movable bearing which are sleeved between the upper transmission shaft of the dual-output shaft motor and the movable bracket. The upper movable clutch is rotationally connected to the movable bracket in the clutch drive assembly through the upper movable bearing.

[0007] Furthermore, the clutch structure also includes an upper fixed clutch and an upper fixed bearing arranged at the bottom of the upper air drum, and the upper fixed clutch drives the upper air drum to rotate and be connected to the shell through the upper fixed bearing.

[0008] Furthermore, the upper movable clutch has an upper transmission claw extending toward the upper fixed clutch, and the upper fixed clutch has an upper transmission groove for the upper transmission claw to be embedded in. The upper transmission claw on the upper movable clutch is embedded in the upper transmission groove of the upper fixed clutch through the clutch drive structure, so that the upper movable clutch and the upper fixed clutch are transmission connected.

[0009] Furthermore, the connection structure includes a transmission section arranged on the lower transmission shaft of the dual-output shaft motor and a transmission boss arranged on the top of the lower wind drum, and the transmission boss has a transmission hole for the transmission section on the lower transmission shaft to be embedded and fixed.

[0010] Furthermore, the upper wind drum and the lower wind drum respectively have a first fan blade and a second fan blade, and the first fan blade and the second fan blade have the same direction.

[0011] Furthermore, the connection structure includes a lower movable clutch and a lower movable bearing which are sleeved between the lower transmission shaft of the dual-output shaft motor and the movable bracket. The lower movable clutch is rotationally connected to the movable bracket in the clutch drive assembly through the lower movable bearing.

[0012] Furthermore, the connection structure also includes a lower fixed clutch and a lower fixed bearing arranged at the bottom of the lower wind drum, and the lower fixed clutch drives the lower wind drum to rotate and be connected to the shell through the lower fixed bearing.

[0013] Furthermore, the lower movable clutch has a lower transmission claw extending toward the lower fixed clutch, and the lower fixed clutch has a lower transmission groove for the lower transmission claw to be embedded in. The lower transmission claw under the lower movable clutch is driven by the clutch drive structure to be embedded in the lower transmission groove of the lower fixed clutch, so that the lower movable clutch and the lower fixed clutch are closed and connected in transmission.

[0014] The beneficial effect of the single-motor dual-shaft tower fan with a clutch function provided by the present invention is that: through the clutch drive assembly, the dual-shaft motor drives the upper and lower wind drums to rotate simultaneously through the clutch structure and the connecting structure, or the dual-shaft motor drives the upper and lower wind drums to rotate respectively through the clutch structure or the connecting structure, so that the operation of using a single dual-shaft motor to drive the upper and lower wind drums to rotate simultaneously or using a single dual-shaft motor to drive the upper and lower wind drums to rotate separately can be realized, thereby effectively simplifying the drive structure of the upper and lower wind drums, reducing manufacturing and maintenance costs, and effectively simplifying the installation steps and improving installation efficiency. In addition, through the clutch structure and the connecting structure, the stability of the transmission connection between the dual-shaft motor and the upper and lower wind drums can be effectively improved, effectively avoiding shaking during the rotation of the upper and lower wind drums driven by the dual-shaft motor, improving the service life of the upper and lower wind drums, and improving the safety of users using the single-motor dual-shaft tower fan with a clutch function. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An exploded schematic diagram of a single-motor dual-shaft tower fan with a clutch function provided by the first embodiment of the present invention;

[0016] Figure 2 A cross-sectional view of the overall structure of a single-motor dual-shaft tower fan with a clutch function in warm air mode provided by the first embodiment of the present invention;

[0017] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0018] Figure 4 A cross-sectional view of the overall structure of a single-motor dual-shaft tower fan with a clutch function in a cold air state provided by the first embodiment of the present invention;

[0019] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0020] Figure 6 A schematic structural diagram of the lower wind drum of a single-motor dual-shaft tower fan with a clutch function provided by the first embodiment of the present invention;

[0021] Figure 7 An exploded schematic diagram of a single-motor dual-shaft tower fan with a clutch function provided by a second embodiment of the present invention;

[0022] Figure 8 A cross-sectional view of the overall structure of a single-motor dual-shaft tower fan with a clutch function in warm air mode provided by the second embodiment of the present invention;

[0023] Figure 9 for Figure 8A partial enlarged view of point C in the middle;

[0024] Figure 10 A cross-sectional view of the overall structure of a single-motor dual-shaft tower fan with a clutch function in a cold air state provided by a second embodiment of the present invention;

[0025] Figure 11 for Figure 10 A partial enlarged view of point D in the middle;

[0026] In the picture:

[0027] 100-single motor double shaft tower fan with clutch function,

[0028] 10-shell, 11-upper wind drum, 111-first fan blade, 12-lower wind drum, 121-second fan blade,

[0029] 13-heating element, 14-double-output shaft motor, 141-upper transmission shaft, 142-lower transmission shaft,

[0030] 20-clutch structure, 21-upper moving clutch, 211-upper transmission claw, 22-upper moving bearing,

[0031] 23-upper fixed clutch, 231-upper transmission groove, 24-upper fixed bearing, 30-connecting structure, 31-transmission section, 32-transmission boss, 321-transmission hole, 40-clutch drive structure, 41-movable bracket, 411-gear teeth, 42-drive motor, 43-gear, 44-slide rail.

[0032] 30'-connecting structure, 31'-lower moving clutch, 311'-lower transmission claw, 32'-lower moving bearing, 33'-lower fixed clutch, 331'-lower transmission groove, 34'-lower fixed bearing. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] Example 1:

[0035] See also Figure 1-6, a single-motor dual-shaft tower fan 100 with a clutch function provided by the first embodiment of the present invention includes a shell 10, an upper air drum 11 and a lower air drum 12 arranged in sequence in the shell 10, and a dual-shaft motor 14 arranged between the upper air drum 11 and the lower air drum 12 and used to drive the upper air drum 11 and the lower air drum 12 to rotate simultaneously, and a clutch structure 20 and a connecting structure 30 are respectively provided between the dual-shaft motor 14 and the upper air drum 11 and the lower air drum 12. A clutch drive component is also provided in the shell 10, through which the dual-shaft motor 14 drives the upper air drum 11 and the lower air drum 12 to rotate simultaneously through the clutch structure 20 and the connecting structure 30, or drives the upper air drum 11 or the lower air drum 12 to rotate respectively through the clutch structure 20 or the connecting structure 30. A heating element 13 is also provided at the lower air drum 12 in the shell 10. The clutch drive structure 40 includes a movable bracket 41 arranged in the shell 10, a driving motor 42 arranged at the bottom of the movable bracket 41, a gear 43 sleeved on the output shaft of the driving motor 42, and a slide rail 44 arranged between the movable bracket 41 and the driving motor 42 for limiting the movable bracket 41. The bottom of the movable bracket 41 has gear teeth 411 for engaging and transmitting with the gear 43. When the fan is in the cold air position, the driving motor 42 in the clutch driving structure 40 drives the gear 43 mounted on the output shaft to rotate. At this time, the movable bracket 41 is engaged with the gear 43 through the gear teeth 411 arranged at the bottom and drives the dual-axis motor 14 and the lower air drum 12 to move along the direction set by the slide rail 44 to the clutch structure 20 arranged between the upper air drum 11 and the dual-axis motor 14 to close and transmit the connection, so that the dual-axis motor 14 drives the upper air drum 11 and the lower air drum 12 to rotate in the same direction and form an airflow through the clutch structure 20 and the connecting structure 30 respectively. At this time, the heating element 13 arranged in the shell 10 does not generate heat, so that the upper air drum 11 and the lower air drum 12 rotate in the same direction and form a cold air flow and then blown out of the shell 10, meeting the user's need to blow cold air using the single-motor dual-axis tower fan 100 with a clutch function.

[0036] like Figure 2 and Figure 3As shown, when the single-motor dual-output shaft tower fan 100 with a clutch function is switched to the warm air gear, the driving motor 42 in the clutch driving structure 40 drives the gear 43 sleeved on the output shaft to rotate in the opposite direction. At this time, the movable bracket 41 is engaged with the gear 43 through the gear teeth 411 set at the bottom and drives the dual-output shaft motor 14 in the opposite direction along the direction set by the slide rail 44 to move to the clutch structure 20 set between the upper air drum 11 and the dual-output shaft motor 14 to open and separate, so that the dual-output shaft motor 14 only drives the lower air drum 12 to rotate and form an airflow through the connecting structure 30. At this time, the heating element 13 set in the shell 10 generates heat, so that the lower air drum 12 rotates and forms an airflow, and then drives the heat generated by the heating element 13 to form a warm airflow and blow it out of the shell 10, meeting the user's need to use the single-motor dual-output shaft tower fan 100 with a clutch function to blow warm air. The single-motor dual-shaft tower fan 100 with a clutch function provided by the present invention uses a clutch drive component to enable the dual-shaft motor 14 to drive the upper air drum 11 and the lower air drum 12 to rotate simultaneously through the clutch structure 20 and the connecting structure 30, or to enable the dual-shaft motor 14 to drive the upper air drum 11 or the lower air drum 12 to rotate respectively through the clutch structure 20 or the connecting structure 30. It can realize the operation of using a single dual-shaft motor 14 to drive the upper air drum 11 and the lower air drum 12 to rotate simultaneously or using a single dual-shaft motor 14 to drive the upper air drum 11 or the lower air drum 12 to rotate separately, thereby effectively simplifying the drive structure of the upper air drum 11 and the lower air drum 12, reducing production and maintenance costs, and effectively simplifying the installation steps and improving installation efficiency. In addition, the clutch structure 20 and the connecting structure 30 can effectively improve the stability of the transmission connection between the dual-shaft motor 14 and the upper and lower wind drums 11 and 12, effectively preventing the dual-shaft motor 14 from shaking during the rotation of the upper and lower wind drums 11 and 12, thereby increasing the service life of the upper and lower wind drums 11 and 12, and improving the safety of users using the single-motor dual-shaft tower fan 100 with a clutch function. The gear teeth 411 at the bottom of the movable bracket 41 provided by the present invention are a section of gear teeth 411 with a fixed length, so that the movable bracket 41 can only move a certain distance in both directions along the direction set by the slide rail 44 under the action of the meshing transmission of the fixed-length gear teeth 411 and the rotation of the drive motor 42 drive gear 43, thereby ensuring the control accuracy of the clutch drive assembly to enable the dual-shaft motor 14 to drive the upper and lower wind drums 11 and 12 to rotate simultaneously through the clutch structure 20 and the connecting structure 30, or to enable the dual-shaft motor 14 to drive the lower wind drum 12 to rotate separately through the connecting structure 30.

[0037] like Figure 1 、 Figure 5 and Figure 6As shown, in this embodiment, the clutch structure 20 includes an upper movable clutch 21 and an upper movable bearing 22 that are sleeved between the upper transmission shaft 141 of the dual-output shaft motor 14 and the movable bracket 41. The upper movable clutch 21 is rotationally connected to the movable bracket 41 in the clutch drive assembly via the upper movable bearing 22. The clutch structure 20 also includes an upper fixed clutch 23 and an upper fixed bearing 24 disposed at the bottom of the upper air drum 11. The upper fixed clutch 23 drives the upper air drum 11 to be rotationally connected to the housing 10 via the upper fixed bearing 24. The upper movable clutch 21 has an upper transmission claw 211 extending toward the upper fixed clutch 23, and the upper fixed clutch 23 has an upper transmission groove 231 for the upper transmission claw 211 to be inserted into. The clutch drive structure 40 drives the upper transmission claw 211 on the upper movable clutch 21 to be inserted into the upper transmission groove 231 of the upper fixed clutch 23, so that the upper movable clutch 21 and the upper fixed clutch 23 are closed and transmission-connected. When the single-motor dual-output shaft tower fan 100 with a clutch function is switched to the cold air gear, the driving motor 42 drives the gear 43 mounted on the output shaft to rotate and engages with the gear 43 through the gear teeth 411 set at the bottom of the movable bracket 41, so that the movable bracket 41 drives the dual-output shaft motor 14, the lower air drum 12 and the upper movable clutch 21 and the upper movable bearing 22 mounted on the upper transmission shaft 141 of the dual-output shaft motor 14 along the direction set by the slide rail 44 to move until the upper transmission claw 211 on the upper movable clutch 21 is embedded in the bottom of the upper air drum 11 The upper transmission groove 231 of the upper fixed clutch 23 is formed, so that the upper movable clutch 21 in the clutch assembly is closed and connected to the upper fixed clutch 23, and the upper movable clutch 21 is rotatably connected to the movable bracket 41 through the upper movable bearing 22. The upper fixed clutch 23 drives the upper air drum 11 to rotate and be connected to the shell 10 through the upper fixed bearing 24. At this time, the dual-output shaft motor 14 drives the upper air drum 11 and the lower air drum 12 to rotate in the same direction through the clutch structure 20 and the connecting structure 30, and forms a cold air flow to be blown out of the shell 10 to meet the customer's demand for blowing cold air. When the single-motor dual-output shaft tower fan 100 with clutch function is switched to the warm air gear, the driving motor 42 drives the gear 43 sleeved on the output shaft to rotate and meshes with the gear 43 through the gear teeth 411 set at the bottom of the movable bracket 41, so that the movable bracket 41 drives the dual-output shaft motor 14, the lower air drum 12 and the upper moving clutch 21 and the upper moving bearing 22 of the upper transmission shaft 141 sleeved on the dual-output shaft motor 14 to move in the opposite direction along the direction set by the slide rail 44 until the upper transmission claw 211 on the upper moving clutch 21 is disengaged from the upper transmission groove 231 of the upper fixed clutch 23 set at the bottom of the upper air drum 11, so that the upper moving clutch 21 and the upper fixed clutch 23 in the clutch assembly are opened and separated. At this time, the dual-output shaft motor 14 only drives the lower air drum 12 to rotate and form an airflow through the connecting structure 30, and then drives the heat generated by the heating element 13 to form warm air and then blow it out of the shell 10 to meet the customer's demand for blowing warm air.By embedding the upper transmission claw 211 provided on the upper movable clutch 21 into the upper transmission groove 231 of the upper fixed clutch 23, the stability of the transmission connection between the upper movable clutch 21 and the upper fixed clutch 23 can be effectively improved, thereby improving the stability of the dual-output shaft motor 14 when driving the upper air drum 11 to rotate through the clutch structure 20.

[0038] like Figure 1 and Figure 6 As shown, in this embodiment, the connection structure 30 includes a transmission section 31 provided on the lower transmission shaft 142 of the dual-output shaft motor 14 and a transmission boss 32 provided on the top of the lower air drum 12. The transmission boss 32 has a transmission hole 321 on which the transmission section 31 on the lower transmission shaft 142 can be embedded and fixed. By embedding the transmission section 31 on the lower transmission shaft 142 of the dual-output shaft motor 14 into the transmission boss 32 on the top of the lower air drum 12 and fixing the connection, the stability of the fixed connection between the lower transmission shaft 142 of the dual-output shaft motor 14 and the lower air drum 12 can be effectively ensured, thereby further ensuring the stability when the clutch structure 20 provided between the upper air drum 11 and the upper transmission shaft 141 of the dual-output shaft motor 14 is closed or opened, and the dual-output shaft motor 14 drives the upper air drum 11 and the lower air drum 12 to rotate simultaneously or drives the lower air drum 12 to rotate alone. The upper air drum 11 and the lower air drum 12 provided by the present invention are respectively provided with a first fan blade 111 and a second fan blade 121, and the directions of the first fan blade 111 and the second fan blade 121 are the same. By setting the directions of the first fan blade 111 and the second fan blade 121 to be the same, when the clutch structure 20 provided between the upper air drum 11 and the upper transmission shaft 141 of the double-output shaft motor 14 is closed, when the double-output shaft motor 14 simultaneously drives the upper air drum 11 and the lower air drum 12 to rotate in the same direction, the upper air drum 11 and the lower air drum 12 both generate a cold air flow and blow it out of the housing 10, thereby further satisfying the user's demand for blowing cold air using the single-motor double-output shaft tower fan 100 with a clutch function.

[0039] Example 2:

[0040] See also Figure 7-11The second embodiment of the present invention provides a single-motor dual-shaft tower fan 100' with a clutch function. The difference between this embodiment and the first embodiment is that in this embodiment, the connection structure 30' provided between the lower transmission shaft 142 of the dual-shaft motor 14 and the lower air drum 12 in the single-motor dual-shaft tower fan 100' with a clutch function includes a lower movable clutch 31' and a lower movable bearing 32' disposed between the lower transmission shaft 142 of the dual-shaft motor 14 and the movable bracket 41. The lower movable clutch 31' is rotationally connected to the movable bracket 41 in the clutch drive assembly via the lower movable bearing 32'. The connection structure 30' also includes a lower fixed clutch 33' and a lower fixed bearing 34' disposed at the bottom of the lower air drum 12. The lower fixed clutch 33' drives the lower air drum 12 to be rotationally connected to the housing 10 via the lower fixed bearing 34'.

[0041] like Figure 10 and Figure 11 As shown, in this embodiment, the lower movable clutch 31' has a lower transmission claw 311' extending toward the lower fixed clutch 33', and the lower fixed clutch 33' has a lower transmission groove 331' for the lower transmission claw 311' to be embedded in. The lower transmission claw 311' under the lower movable clutch 31' is driven by the clutch drive structure 40 to be embedded in the lower transmission groove 331' of the lower fixed clutch 33', so that the lower movable clutch 31' and the lower fixed clutch 33' are closed and connected in transmission. When the single-motor dual-output shaft tower fan 100' with a clutch function is switched to the cold air gear, the driving motor 42 drives the gear 43 sleeved on the output shaft to rotate and engages with the gear 43 through the gear teeth 411 set at the bottom of the movable bracket 41, so that the movable bracket 41 drives the dual-output shaft motor 14 to move along the direction set by the slide rail 44, thereby disengaging the lower transmission claw 311' of the lower moving clutch 31' sleeved on the lower transmission shaft 142 from the lower transmission groove 331' in the lower fixed clutch 33' on the lower air drum 12, so that the connection structure 30' between the dual-output shaft motor 14 and the lower air drum 12 is opened and disengaged, and at the same time, the upper transmission shaft 14 sleeved on the dual-output shaft motor 14 is disengaged. The upper movable clutch 21 and the upper movable bearing 22 of 1 move to the upper transmission claw 211 on the upper movable clutch 21 and are embedded in the upper transmission groove 231 of the upper fixed clutch 23 arranged at the bottom of the upper air drum 11, so that the upper movable clutch 21 and the upper fixed clutch 23 in the clutch assembly are closed and transmission-connected, and the upper movable clutch 21 is rotationally connected to the movable bracket 41 through the upper movable bearing 22, and the upper fixed clutch 23 drives the upper air drum 11 to rotate and be connected in the shell 10 through the upper fixed bearing 24. At this time, the dual-output shaft motor 14 drives the upper air drum 11 to rotate through the clutch structure 20 and the connecting structure 30' and forms a cold air flow to be blown out of the shell 10 to meet the customer's demand for blowing cold air.

[0042] like Figure 8 and Figure 9As shown, in this embodiment, when the single-motor dual-output shaft tower fan 100' with a clutch function is switched to the warm air gear, the driving motor 42 drives the gear 43 sleeved on the output shaft to rotate in the opposite direction and engages with the gear 43 through the gear teeth 411 set at the bottom of the movable bracket 41, so that the movable bracket 41 drives the dual-output shaft motor 14 to move in the opposite direction along the direction set by the slide rail 44, thereby disengaging the upper transmission claw 211 of the upper movable clutch 21 sleeved on the upper transmission shaft 141 from the upper transmission groove 231 in the upper fixed clutch 23 on the upper air drum 11, so that the clutch structure 20 between the dual-output shaft motor 14 and the upper air drum 11 is opened and disengaged, and at the same time, the lower movable clutch 31' and the lower movable bearing 32' sleeved on the lower transmission shaft 142 of the dual-output shaft motor 14 are moved to the lower movable clutch. The lower transmission claw 311' under the clutch 31' is embedded in the lower transmission groove 331' of the lower fixed clutch 33' arranged at the bottom of the lower air drum 12, so that the lower movable clutch 31' in the connecting assembly is closed and connected to the lower fixed clutch 33'. The lower movable clutch 31' is rotatably connected to the movable bracket 41 through the lower movable bearing 32'. The lower fixed clutch 33' drives the lower air drum 12 to rotate and is connected to the shell 10 through the lower fixed bearing 34'. At this time, the double-output shaft motor 14 drives the lower air drum 12 to rotate through the connecting structure 30', and the heating element 13 starts to work, so that the double-output shaft motor 14 drives the lower air drum 12 to rotate through the connecting structure 30' and forms an airflow to drive the heat generated by the heating element 13 to form a warm airflow and blow it out of the shell 10 to meet the customer's needs for blowing warm air.

[0043] like Figure 9 and Figure 11 As shown, in this embodiment, by respectively providing a clutch structure 20 between the upper air drum 11 and the upper transmission shaft 141 of the dual-shaft motor 14, and a connecting structure 30' between the lower air drum 12 and the lower transmission shaft 142 of the dual-shaft motor 14, the dual-clutch drive structure 40 of the single-motor dual-shaft tower fan 100' with a clutch function can be realized, that is, the clutch structure 20 is used to drive the upper air drum 11 to rotate alone, or the connecting structure 30' is used to drive the lower air drum 12 to rotate alone, thereby meeting the user's demand for using the single-motor dual-shaft tower fan 100' with a clutch function to blow cold air or warm air, and further improving the accuracy of the single-motor dual-shaft tower fan 100' with a clutch function when blowing cold air or warm air, thereby improving the user's experience.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A single-motor double-shaft tower fan with a clutch function, comprising a housing (10), an upper wind drum (11) and a lower wind drum (12) sequentially arranged in the housing (10), and a double-shaft motor (14) arranged between the upper wind drum (11) and the lower wind drum (12) and used to drive the upper wind drum (11) and the lower wind drum (12) to rotate, characterized in that: A clutch structure (20) and a connection structure (30) are respectively provided between the double-output shaft motor (14) and the upper wind drum (11) and the lower wind drum (12). A clutch drive structure (40) is also provided in the housing (10). The double-output shaft motor (14) drives the upper wind drum (11) and the lower wind drum (12) to rotate simultaneously through the clutch structure (20) and the connection structure (30), or drives the upper wind drum (11) or the lower wind drum (12) to rotate separately through the clutch structure (20) or the connection structure (30). A heating element (13) is also provided in the housing (10) at the lower wind drum (12).

2. A single-motor dual-shaft tower fan with a clutch function as claimed in claim 1, characterized in that: The clutch drive structure (40) comprises a movable bracket (41) arranged in the housing (10), a drive motor (42) arranged at the bottom of the movable bracket (41), a gear (43) sleeved on the output shaft of the drive motor (42), and a slide rail (44) arranged between the movable bracket (41) and the drive motor (42) for limiting the position of the movable bracket (41), and the bottom of the movable bracket (41) has gear teeth (411) for meshing with the gear (43) for transmission.

3. A single-motor dual-shaft tower fan with a clutch function as claimed in claim 2, characterized in that: The clutch structure (20) comprises an upper movable clutch (21) and an upper movable bearing (22) which are sleeved between an upper transmission shaft (141) of the dual-output shaft motor (14) and the movable bracket (41); the upper movable clutch (21) is rotationally connected to the movable bracket (41) in the clutch drive structure (40) via the upper movable bearing (22).

4. A single-motor dual-shaft tower fan with a clutch function as claimed in claim 3, characterized in that: The clutch structure (20) further comprises an upper fixed clutch (23) and an upper fixed bearing (24) arranged at the bottom of the upper air drum (11); the upper fixed clutch (23) drives the upper air drum (11) to rotate and connect to the housing (10) via the upper fixed bearing (24).

5. A single-motor dual-shaft tower fan with a clutch function as claimed in claim 4, characterized in that: The upper movable clutch (21) is provided with an upper transmission claw (211) extending toward the upper fixed clutch (23); the upper fixed clutch (23) is provided with an upper transmission groove (231) for the upper transmission claw (211) to be embedded in; the upper transmission claw (211) on the upper movable clutch (21) is embedded in the upper transmission groove (231) of the upper fixed clutch (23) through the clutch drive structure (40), so that the upper movable clutch (21) and the upper fixed clutch (23) are closed and transmission-connected.

6. A single-motor dual-shaft tower fan with a clutch function as claimed in claim 1, characterized in that: The connecting structure (30) comprises a transmission section (31) arranged on the lower transmission shaft (142) of the dual-output shaft motor (14) and a transmission boss (32) arranged on the top of the lower wind drum (12), wherein the transmission boss (32) has a transmission hole (321) in which the transmission section (31) on the lower transmission shaft (142) can be embedded and fixed.

7. A single-motor dual-shaft tower fan with a clutch function as claimed in claim 1, characterized in that: The upper wind drum (11) and the lower wind drum (12) are respectively provided with a first fan blade (111) and a second fan blade (121), and the first fan blade (111) and the second fan blade (121) have the same direction.

8. The single-motor dual-shaft tower fan with a clutch function as claimed in claim 1, characterized in that: The connection structure (30') comprises a lower movable clutch (31') and a lower movable bearing (32') sleeved between the lower transmission shaft (142) of the dual-output shaft motor (14) and the movable bracket (41); the lower movable clutch (31') is rotationally connected to the movable bracket (41) in the clutch drive structure (40) via the lower movable bearing (32').

9. A single-motor dual-shaft tower fan with a clutch function as claimed in claim 8, characterized in that: The connection structure (30') further comprises a lower fixed clutch (33') and a lower fixed bearing (34') arranged at the bottom of the lower wind drum (12); the lower fixed clutch (33') drives the lower wind drum (12) to rotate and connect to the housing (10) via the lower fixed bearing (34').

10. A single-motor dual-shaft tower fan with a clutch function as claimed in claim 9, characterized in that: The lower movable clutch (31') is provided with a lower transmission claw (311') extending toward the lower fixed clutch (33'); the lower fixed clutch (33') is provided with a lower transmission groove (331') for the lower transmission claw (311') to be embedded in; the lower transmission claw (311') under the lower movable clutch (31') is driven by the clutch drive structure (40) to be embedded in the lower transmission groove (331') of the lower fixed clutch (33'), so that the lower movable clutch (31') and the lower fixed clutch (33') are closed and connected in transmission.

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