Safety fan and safety fan cover
By designing a flare-shaped mesh structure air hood, the contradiction between the existing fans preventing children from accidentally touching and ensuring air output is solved, and the dual guarantee of safety and functionality is achieved.
Patent Information
- Application Number
- CN202420657250.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-01
AI Technical Summary
The air hood of existing fans is insufficient in preventing children from accidentally touching, and the spacing between the air hood mesh ribs is reduced to prevent mistouching, which will lead to a small air output, affecting the normal use of the fan.
A safety fan is designed, and its air hood adopts a flare-shaped mesh structure. The mesh air hood of the front and rear air hoods is in line with the direction of the air outlet and inlet, ensuring that children cannot extend their fingers, and at the same time, they ensure that Inlet air volume and outlet air volume.
Effectively prevent children from accidentally tentacles of their fingers, avoid accidental injuries, and ensure the normal airflow of the fan and ensure the integrity of the use function.
Smart Images
Figure CN222502188U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of household appliances, in particular to a safety fan and a safety wind cover. Background Art
[0002] Existing fans are generally equipped with wind shields, which can prevent the user's fingers and other body parts from touching the rotating fan blades and causing accidents, and protect the fan blades from being damaged by collisions with foreign objects. At the same time, they can also guide the air out of the fan blades. Although the existing wind shields can provide a certain degree of protection, there are still cases where children put their fingers into the wind shield, resulting in their fingers being entangled by the fan blades. Therefore, some safety wind shields to prevent children from accidentally touching and safety fans using such safety wind shields have appeared. However, this type of wind shield usually prevents children from putting their fingers into the wind shield by reducing the distance between the wind shield mesh bars. Reducing the distance between the mesh bars will also lead to the problem of small air output, which will affect the normal use of the fan.
[0003] Therefore, a fan is needed that can prevent children from accidentally touching it without affecting the normal use of the fan. Utility Model Content
[0004] Based on this, the purpose of the utility model is to provide a safety fan that can prevent children from accidentally touching it while ensuring the air output.
[0005] The utility model is realized through the following detailed technical solutions:
[0006] A safety fan comprises a fan unit, a head, a support unit and a base, wherein the fan unit comprises a front hood, a rear hood and fan blades, the front hood and the rear hood form a hood, and the front hood and the rear hood are both provided with a mesh structure composed of a plurality of mesh bars, the cross-section of the mesh bars is trumpet-shaped, and two adjacent mesh bars form a trumpet-shaped grid air outlet, the trumpet mouth of the grid air outlet of the front hood is oriented in the same direction as the air outlet, the trumpet mouth of the grid air outlet of the rear hood is oriented in the same direction as the air inlet, and the fan blades are arranged in the inner cavity of the hood; the head is fixedly connected to the air inlet surface of the rear hood; one end of the support unit is connected to the base, and the other end is connected to the head.
[0007] Compared with the prior art, the safety fan of the utility model optimizes the structure of the wind shield, and designs a trumpet-shaped mesh air outlet by adjusting the shape of the mesh ribs of the front and rear wind shields into a trumpet shape. The mesh air outlet of this structure can not only prevent children from inserting their fingers into the wind shield, but also ensure that the special structure of the trumpet-shaped mesh air outlet of the front and rear wind shields effectively guarantees the air intake and air outlet, thereby ensuring the normal use function of the fan.
[0008] Furthermore, the rear hood includes a side wall and a rear net, and the side wall includes a solid section connected to the front hood and a mesh section connected to the rear net. The solid section and the front hood can form a relatively closed space when the fan blade is working. When the fan is working normally, turbulence with a flow direction different from the outlet direction will be generated in the side wall of the rear hood, the air outlet of the front hood, and other areas. These turbulences will rub and vibrate the hood during the flow process, thereby generating a lot of noise. However, the relatively closed space of the present invention can greatly block the turbulent flow and discharge the airflow uniformly from the outlet direction of the front hood, thereby reducing noise.
[0009] Furthermore, the machine head includes a fan base and a connector, the fan base is fixedly connected to the fan unit, the fan base is provided with a rotation slot, the connector is clamped in the rotation slot and is rotationally connected to the fan base, the fan base can rotate left and right around the connector or rotate up and down along the rotation slot, and the connector is also rotationally connected to one end of the support unit. By optimizing the machine head structure, a rotation slot is also provided on the fan base of the machine head, and the rotation structure of the safety fan shaking up and down is adjusted, this structure is smaller in size and simpler in structure.
[0010] Furthermore, the fan base includes a housing, a main motor, a first rotating member and a first motor; the main motor is arranged in the housing and used to drive the fan blades, the first rotating member is fixedly connected to the housing, and when the first rotating member rotates, the housing rotates accordingly; the first motor is arranged in the first rotating member and can drive the first rotating member to rotate along a vertical plane. The rotating structure of the fan base is simple, which can greatly reduce the volume and weight of the head, thereby avoiding an excessively high center of gravity and improving stability.
[0011] Furthermore, the connector includes a connecting shell, a second motor, a second rotating member and a positioner; the second rotating member and the connecting shell are relatively fixedly connected, and when the second rotating member rotates, the connecting shell rotates accordingly; the second motor can drive the second rotating member to rotate along a horizontal plane, and the positioner is provided with a locking assembly, which can lock or loosen the connector and the support unit. The positioner can stop the operation of the second motor and make the fan at the angle required by the user. Setting the second motor in the connector can not only better cooperate with the fan base, but also further reduce the size and weight of the head. The setting of the positioner makes the adjustment of the head more convenient.
[0012] Furthermore, the fan base is also provided with a controller, which is arranged on the fan base housing and can control the main motor, the first motor and the second motor of the safety fan, and further can control the safety fan to adjust the fan blade speed, whether to shake left and right, and whether to shake up and down. The controller is integrated on the fan base, which is more convenient for users to operate.
[0013] Furthermore, the first motor and the second motor are stepper motors, which are more stable and less noisy when working, and are more conducive to improving the user's comfort.
[0014] Furthermore, the support unit includes a vertical pole and a lifting rod, the vertical pole is erected on the base, the lifting rod is clamped in the vertical pole and can be lifted and lowered along the vertical pole to adjust the height of the support unit, and the lifting rod is also connected to the connecting head. The design of the vertical pole and the lifting rod makes the support unit more stable in height adjustment, with a larger adjustment range, and more convenient for users to use.
[0015] Furthermore, the safety fan also includes a remote controller, and the remote controller can remotely control the controller. The setting of the remote controller can facilitate the user to remotely control the safety fan, and the operation is more convenient.
[0016] Furthermore, a remote control seat is provided in the center of the front wind shield, and the remote control can be magnetically attracted to the remote control seat. The user can remove the remote control to control the safety fan as needed, or store the remote control in the remote control seat, or directly operate the remote control on the front wind shield to adjust the safety fan, which is more convenient for operation and use.
[0017] The utility model also provides a safety wind hood, comprising a front wind hood and a rear wind hood, wherein the front wind hood and the rear wind hood are both provided with a mesh structure composed of a plurality of mesh bars, the cross-section of the mesh bars is trumpet-shaped, and two adjacent mesh bars form a trumpet-shaped mesh air outlet, the trumpet mouth of the mesh air outlet of the front wind hood is oriented in the same direction as the air outlet, and the trumpet mouth of the mesh air outlet of the rear wind hood is oriented in the same direction as the air inlet.
[0018] Compared with the prior art, the safety wind shield of the utility model adjusts the shape of the front wind shield and the rear wind shield mesh ribs into a trumpet shape, thereby designing a trumpet-shaped grid air outlet. The grid air outlet of this structure can not only prevent children from putting their fingers into the wind shield, but also ensure that the air intake is effectively guaranteed through the special trumpet-shaped structure.
[0019] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the safety fan of the utility model;
[0021] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the safety fan;
[0022] Figure 3 for Figure 1 Schematic diagram of the front windshield structure;
[0023] Figure 4 for Figure 1 Schematic diagram of the mesh structure of the wind shield;
[0024] Figure 5 for Figure 1 A partial enlarged view of the rear air hood and the nose;
[0025] Figure 6 for Figure 1 Schematic diagram of the fan base;
[0026] Wherein: 10: fan unit, 11: front wind shield, 111: mesh ribs, 112: remote control seat, 12: rear wind shield, 121: side wall, 1211: solid section, 1212: mesh rib section, 13: fan blades, 20: machine head, 21: fan seat, 21A: rotating groove, 211: shell, 2111: handle, 212: main motor, 213: first rotating member, 214: first motor, 215: controller, 2151: control button, 2152: display screen, 22: connector, 221: connecting shell, 222: second motor, 223: second rotating member, 224: positioner, 30: support unit, 31: vertical pole, 32: lifting rod, 40: base. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0028] It should be noted that when a component is referred to as being "mounted on", "fixed on" or "disposed on" another component, it may be directly on the other component or there may be a central component at the same time. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time.
[0029] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of the present invention are merely relative concepts or are based on the normal use status of the product and should not be considered as restrictive.
[0030] Example 1
[0031] See also Figure 1 The utility model provides a safety fan, which includes a fan unit 10, a head 20, a support unit 30 and a base 40. The support unit 30 is arranged on the base 40 and is rotatably connected to the head 20, and the fan unit 10 is fixedly connected to the head 20.
[0032] See also Figure 2 The fan unit 10 includes a front wind shield 11, a rear wind shield 12 and a fan blade 13. The front wind shield 11 and the rear wind shield 12 form a wind shield. The fan blade 13 is arranged in the inner cavity of the wind shield through a fixing component. Figure 3 The front air cover 11 and the rear air cover 12 are both provided with a mesh structure composed of a plurality of mesh ribs 111. Figure 4 The cross section of the mesh ribs 111 is trumpet-shaped, and two adjacent mesh ribs form a trumpet-shaped mesh air outlet. The trumpet mouth of the mesh air outlet of the front air hood is oriented in the same direction as the air outlet direction, and the trumpet mouth of the mesh air outlet of the rear air hood is oriented in the same direction as the air inlet direction. This design can prevent children's fingers from entering the air hood to avoid safety accidents. In addition, the trumpet mouth design of the rear air hood can also make the air intake smoother. The rear air hood 12 includes a side wall 121 and a rear net 122, and the side wall 121 includes a solid section 1211 connected to the front air hood 11 and a mesh rib section 1212 connected to the rear net, and the solid section 1211 and the front air hood 11 can form a relatively closed space when the fan blades are working. When the fan is operating normally, turbulent flows with flow directions different from those of the air outlet will be generated in the side walls of the rear air hood and the air outlet of the front air hood. These turbulent flows will rub and vibrate the air hood during the flow, thereby creating a lot of noise. The relatively closed space of the present invention can greatly block the turbulent flow and discharge the airflow in a unified manner from the air outlet direction of the front air hood 11, thereby reducing noise.
[0033] The head 20 includes a fan base 21 and a connector 22. The fan base 21 is rotatably connected to the connector 22. The fan base 21 can rotate up and down or left and right around the connector 22. The fan base 21 is connected to the rear air hood 12. Figure 5, the fan base 21 is provided with a rotation groove 21A, the connector 22 is clamped in the rotation groove 21A and is rotationally connected to the fan base 21. Specifically, the fan base 21 includes a shell 211, a main motor 212, a first rotating member 213 and a first motor 214. The main motor 212 is arranged in the shell 211 and is rotationally connected to the fan blade 13. The first rotating member 213 is arranged inside the shell 211 and is fixedly connected to the shell 211. The first motor 214 can drive the first rotating member 213 to rotate along a vertical plane. When the first rotating member 213 rotates up and down, the shell will rotate up and down accordingly, and then the rotation of the fan base will drive the wind cover to rotate up and down. The up and down rotation is a rotation along the vertical direction with the horizontal direction as the axis. The connector 22 includes a connecting shell 221, a second motor 222, a second rotating member 223 and a positioner 224. The second rotating member 222 and the connecting shell 221 are relatively fixedly connected. When the second rotating member 224 rotates, the connecting shell 221 rotates accordingly. The second motor 222 can drive the second rotating member 223 to rotate in a horizontal plane. When the second rotating member 223 rotates, the connecting shell 221 fixedly connected to the second rotating member 223 can also rotate left and right in the horizontal plane. The left and right rotation is a rotation along the horizontal direction with the vertical direction as the axis. The positioner 224 is provided with a locking assembly, which can lock or release the connector 22 and the support unit 30. When the connector 22 and the support unit 30 are locked, the fan base 21 cannot shake left and right. Make the air outlet angle of the fan unit 10 the angle required by the user. Preferably, both the first motor 214 and the second motor 222 are stepping motors.
[0034] See also Figure 6 The fan base 21 is also provided with a controller 215, and the controller 215 is arranged on the housing 211 of the fan base 21. The controller 215 can control the main motor 212, the first motor 214 and the second motor 222 of the safety fan, and then control the safety fan to adjust the speed of the fan blades 13, whether the fan base 21 shakes left and right, and whether it shakes up and down.
[0035] Preferably, the controller 215 is provided with a plurality of control buttons 2151 and a display screen 2152, wherein the plurality of control buttons 2151 respectively control the power supply, the main motor 212, the first motor 214 and the second motor 222, and the display screen 2152 is used to display the working parameters of the safety fan.
[0036] Preferably, a handle 2111 is further provided on the housing 211 of the fan base 21 . The handle 2111 facilitates the installation of the fan base 21 and can also be used to manually adjust the angle of the fan base 21 .
[0037] The support unit 30 includes a vertical rod 31 and a lifting rod 32. The vertical rod 31 is vertically arranged on the base 40. The lifting rod 32 is clamped in the vertical rod 31 and can be lifted and lowered along the vertical rod 31 to adjust the height of the support unit 30. The lifting rod is also connected to the connector. Specifically, the vertical rod 31 is provided with a plurality of slots, and the plurality of slots are arranged at intervals. The lifting rod 32 is provided with a locking tooth matching the slot, and the locking tooth can be clamped in the slot of the vertical rod 31.
[0038] The base 40 is also provided with a plug and a wire, and the plug and the wire are used to connect to a power source.
[0039] The safety fan also includes a remote controller (not shown), which can remotely control the controller 215, thereby controlling the safety fan to adjust the speed of the fan blades 13, whether the fan base 21 shakes left and right, and whether it shakes up and down. A remote controller base 112 is also provided in the center of the front wind shield 11, and the remote controller base can be adsorbed by the remote controller.
[0040] Preferably, the remote control is provided with a magnetic component, and the magnetic component is a magnetic material or a ferromagnetic metal. The remote control seat 112 is made of a material matching the magnetic component. When the magnetic component is a magnetic material, the remote control seat is made of a ferromagnetic metal. When the magnetic component is a ferromagnetic metal, the remote control seat is made of a magnetic material. As long as the remote control can be fixed to the remote control seat by magnetic attraction. When the user has finished using the remote control, the remote control can be adsorbed on the remote control seat 112 to facilitate the storage of the remote control. In addition, the safety fan can also be adjusted by directly operating the remote control on the front wind shield 11, and the operation methods are more diverse.
[0041] Example 2
[0042] The present embodiment also provides a safety wind hood, which includes the above-mentioned front wind hood and rear wind hood, and the front wind hood and the rear wind hood are both provided with a mesh structure composed of a plurality of mesh bars, the cross-section of the mesh bars is trumpet-shaped, and two adjacent mesh bars form a trumpet-shaped mesh air outlet, the trumpet mouth of the mesh air outlet of the front wind hood is oriented in the same direction as the air outlet direction, and the trumpet mouth of the mesh air outlet of the rear air hood is oriented in the same direction as the air inlet direction.
[0043] The gap width of the mesh air outlet of this safety wind cover has passed the test of children's fingers. Firstly, the gap setting of two adjacent mesh ribs at the trumpet position meets the safety requirements. Secondly, even if a finger is pushed into the mesh cover under a force of 20N, due to the trumpet-shaped structure design of the mesh air outlet, the gap between the two adjacent mesh ribs on the inside is smaller, further preventing the finger from reaching inward and touching the fan blades. This is equivalent to double protection and can effectively ensure the safety of children.
[0044] Compared with the prior art, the safety fan of the present application optimizes the structure of the wind shield, and designs a trumpet-shaped grid air outlet by adjusting the shape of the front and rear wind shield mesh ribs into a trumpet shape. The grid air outlet of this structure can not only prevent children from inserting their fingers into the wind shield, but also ensure that the air intake is effectively guaranteed by the special trumpet-shaped structure. In addition, the safety fan of the present application also optimizes the structure of the head, and adjusts the rotating structure of the fan shaking up and down by setting a rotating groove on the fan seat of the head. This structure is smaller in size and simpler in structure, and can be used as a safety fan.
[0045] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.
Claims
1. A safety fan, characterized in that: It includes a fan unit, a head, a support unit and a base, the fan unit includes a front wind cover, a rear wind cover and fan blades, the front wind cover and the rear wind cover form a wind cover, the front wind cover and the rear wind cover are both provided with a mesh structure composed of a plurality of mesh bars, the cross-section of the mesh bars is trumpet-shaped, two adjacent mesh bars form a trumpet-shaped grid air outlet, the trumpet mouth of the grid air outlet of the front wind cover is oriented in the same direction as the air outlet direction, the trumpet mouth of the grid air outlet of the rear wind cover is oriented in the same direction as the air inlet direction, and the fan blades are arranged in the inner cavity of the wind cover; the head is fixedly connected to one side of the air inlet of the rear wind cover; one end of the support unit is connected to the base, and the other end is connected to the head.
2. The safety fan according to claim 1, characterized in that: The rear wind shield comprises a side wall and a rear net, wherein the side wall comprises a solid section connected to the front wind shield and a mesh rib section connected to the rear net which are sequentially arranged.
3. The safety fan according to claim 2, characterized in that: The head includes a fan base and a connecting head, the fan base is fixedly connected to the fan unit, the fan base is provided with a rotating groove, the connecting head is clamped in the rotating groove and is rotatably connected to the fan base, the fan base can rotate left and right around the connecting head or rotate up and down along the rotating groove, and the connecting head is also rotatably connected to one end of the support unit.
4. The safety fan according to claim 3, characterized in that: The fan base includes a shell, a main motor, a first rotating member and a first motor; the main motor is arranged in the shell and is used to drive the fan blades, the first rotating member is fixedly connected to the shell, and when the first rotating member rotates, the shell rotates accordingly; the first motor is arranged in the first rotating member and can drive the first rotating member to rotate along a vertical plane.
5. The safety fan according to claim 4, characterized in that: The connecting head includes a connecting shell, a second motor, a second rotating member and a positioner; the second rotating member and the connecting shell are relatively fixedly connected, and when the second rotating member rotates, the connecting shell rotates accordingly; the second motor can drive the second rotating member to rotate along a horizontal plane, and the positioner is provided with a locking assembly that can lock or loosen the connecting head and the supporting unit.
6. The safety fan according to claim 4, characterized in that: The fan base is also provided with a controller, which is arranged on the fan base housing and can control the main motor, the first motor and the second motor of the safety fan.
7. The safety fan according to claim 3, characterized in that: The support unit comprises a vertical pole and a lifting rod, wherein the vertical pole is erected on the base, the lifting rod is clamped in the vertical pole and can be lifted and lowered along the vertical pole to adjust the height of the support unit, and the lifting rod is also connected to the connecting head.
8. The safety fan according to claim 6, characterized in that: The safety fan also includes a remote controller, which can remotely control the controller.
9. The safety fan according to claim 8, characterized in that: A remote control seat is also provided in the center of the front wind shield, and the remote control can be magnetically attracted to the remote control seat.
10. A safety wind shield, characterized in that: It includes a front wind hood and a rear wind hood, each of which is provided with a mesh structure composed of a plurality of mesh ribs, the cross-section of the mesh ribs is trumpet-shaped, two adjacent mesh ribs form a trumpet-shaped mesh air outlet, the trumpet mouth of the mesh air outlet of the front wind hood is oriented in the same direction as the air outlet direction, and the trumpet mouth of the mesh air outlet of the rear wind hood is oriented in the same direction as the air inlet direction.