CN216077675U - Electric fan capable of being automatically disconnected in power failure - Google Patents

Abstract

The utility model relates to the technical field of electric fans, in particular to an electric fan capable of being automatically disconnected in power failure. The electric fan of outage automatic disconnection includes the base, intermittent type mechanism, the stand, the adjusting part, temperature measuring component, outage automatic disconnection subassembly and fan subassembly, the top fixed mounting of base has the box body, the inside of box body is equipped with intermittent type mechanism, the column mouting is at the top of intermittent type mechanism, temperature measuring component installs on the stand outer wall, outage automatic disconnection subassembly is installed inside the base, adjusting component installs the top at the stand, fan subassembly is including installation shell and fan head, the installation shell is installed on adjusting part, fan head fixed mounting is on the lateral wall of installation shell. Simultaneously, the fan head can perform 360-degree all-dimensional intermittent swing, the blowing range is improved, the fan head can be manually adjusted at will at each angle, and blowing in each angle direction is facilitated.

Description

Electric fan capable of being automatically disconnected in power failure

Technical Field

The utility model relates to the technical field of electric fans, in particular to an electric fan capable of being automatically disconnected in power failure.

Background

An electric fan, also called fan and fanner, is a household electrical appliance which uses an electric motor to drive fan blades to rotate so as to accelerate the circulation of air, and is mainly used for cooling and relieving summer heat and circulating air. The product is widely used in places such as families, classrooms, offices, shops, hospitals, hotels and the like.

Because the phenomenon of power failure at night exists in part of regions, a plurality of fans keep the current state after power failure, the fans can continue to work after the power supply is switched on in the morning, and part of fans do not need to continue to work after the power supply is switched on in the morning. Most electric fans in the current market only have a direct on-off mode and a timing mode, and the two modes can not avoid forgetting to turn off the electric fan after power failure; when the power is turned on again, the fan continues to work, so that the service life of the electric fan is shortened, and unnecessary energy consumption is caused.

The fan head of the existing electric fan can only swing back and forth within an angle range not exceeding 180 degrees in the horizontal direction, the air blowing range is limited, and the fan head can only be adjusted left and right in the horizontal direction when being manually adjusted, the adjusting range is small, and air blowing in some special angle directions cannot be performed.

Therefore, there is a need to provide a new electric fan with automatic power-off function to solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides the electric fan which can enable the fan head to perform 360-degree all-dimensional intermittent swing, improve the blowing range, perform random manual adjustment on each angle of the fan head and conveniently perform automatic power-off of blowing in each angle direction.

The utility model provides an electric fan capable of automatically disconnecting when power is off, which comprises: the box body is fixedly arranged at the top of the base, and an intermittent mechanism is arranged inside the box body;

the upright post is arranged at the top of the intermittent mechanism;

the adjusting assembly is mounted at the top of the upright post;

the fan assembly comprises a mounting shell and a fan head, the mounting shell is mounted on the adjusting assembly, and the fan head is fixedly mounted on the side wall of the mounting shell;

and the power-off automatic-opening assembly comprises a mode selection switch S1, a contactor KM, a button SB-1 and a normally open contact KM-1 of the contactor KM.

Preferably, intermittent type mechanism includes motor, single gear, full gear and bull stick, motor fixed mounting is on the interior diapire of box body, the output fixed connection of single gear and motor, the bull stick rotates on the interior diapire of connecting the box body, full gear and bull stick are located the inside pole wall fixed connection of box body, the bull stick is located the outside one end of box body and is connected with the stand.

Preferably, the stand includes a support section of thick bamboo, bracing piece and first bolt, a support section of thick bamboo fixed mounting is at the top of bull stick, bracing piece sliding connection is in the inside of a support section of thick bamboo, first bolt and the lateral wall threaded connection who supports a section of thick bamboo and be close to the top.

Preferably, the adjusting part includes first connecting rod, second connecting rod, ball, rotation cover and second bolt, the one end fixed connection of a support section of thick bamboo is kept away from with the bracing piece to first connecting rod, the lateral wall fixed connection of second connecting rod and installation shell, the terminal surface fixed connection of ball and first connecting rod, the terminal surface fixed connection of rotation cover and second connecting rod, just ball swing joint rotates the inside of cover, second bolt threaded connection is on the lateral wall that rotates the cover.

Preferably, install on the outer wall of second connecting rod and stir the subassembly, stir the subassembly including fixed cover, first screw rod and handle, fixed cover fixed mounting is on the outer wall of second connecting rod, first screw rod fixed mounting is in the bottom of fixed cover, handle threaded connection is on the pole wall of first screw rod.

Preferably, the top four corners department of base all is equipped with the removal subassembly, the removal subassembly includes curved bar, baffle, second screw rod, pulley, corner and stopper, the top four corners department of base all has the baffle through curved bar fixed mounting, the surperficial threaded connection of baffle has the second screw rod, the bottom of second screw rod is rotated and is connected with the pulley, the top fixed mounting of second screw rod has the corner, the second screw rod is close to the pole wall fixed mounting at top has the stopper, the surface of base is equipped with the notch that is used for the pulley to remove.

Preferably, the bottom of the base is fixedly provided with a non-slip mat.

Preferably, the button SB-1 is connected in parallel with the normally open contact KM-1 of the contactor KM and then connected in series with the contactor KM and the first contact of the mode selection switch S1 to form a first branch; the second contact of the mode select switch S1 forms a second branch, the first branch being connected in parallel with the second branch and in series with the primary loop.

Compared with the related art, the electric fan capable of automatically disconnecting after power failure provided by the utility model has the following beneficial effects:

the utility model provides an electric fan capable of being automatically disconnected in case of power failure, which can automatically disconnect the power supply in case of power failure, avoid the fan from continuously working after being electrified again, effectively prolong the service life of the electric fan and save energy. Can drive the rotation of the fan head intermittent type on the stand through intermittent type mechanism and once stop to make the fan head can 360 degrees all-round rotations adjust, improve the scope of blowing of fan head, let fan head people all around can blow to wind, can carry out manual regulation at will through the angle of adjusting part to the fan head in addition, the convenience is blown each angle direction.

Drawings

FIG. 1 is a schematic structural diagram of an electric fan with automatic power-off function according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the electric fan shown in FIG. 1 with an automatic power-off function;

FIG. 3 is an enlarged schematic view of the structure at A shown in FIG. 2;

fig. 4 is a schematic view of the internal structure of the cartridge shown in fig. 1.

Fig. 5 is a circuit diagram of the inside of the base shown in fig. 1.

Reference numbers in the figures: 1. a base; 11. a notch; 2. a box body; 3. an intermittent mechanism; 31. a motor; 32. a single gear; 33. all-gear; 34. a rotating rod; 4. a column; 41. a support cylinder; 42. a support bar; 43. a first bolt; 5. an adjustment assembly; 51. a first link; 52. a second link; 53. a ball bearing; 54. rotating the sleeve; 55. a second bolt; 6. a fan assembly; 61. mounting a shell; 62. a fan head; 7. the component is stirred; 71. Fixing a sleeve; 72. a first screw; 73. a grip; 8. a moving assembly; 81. a curved bar; 82. a partition plate; 83. A second screw; 84. a pulley; 85. turning a handle; 86. a limiting block; 9. a non-slip mat.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Referring to fig. 1 to 4, an electric fan with automatic power-off function according to an embodiment of the present invention includes: base 1, stand 4, intermittent type mechanism 3, adjusting part 5 and fan assembly 6, the top fixed mounting of base 1 has box body 2, and the inside of box body 2 is equipped with intermittent type mechanism 3, and stand 4 installs at intermittent type mechanism 3's top, and adjusting part 5 installs at stand 4's top, and fan assembly 6 is including installation shell 61 and fan head 62, and installation shell 61 installs on adjusting part 5, and fan head 62 fixed mounting is on the lateral wall of installation shell 61.

It should be noted that: because the phenomenon of power failure at night exists in part of regions, a plurality of fans keep the current state after power failure, the fans can continue to work after the power supply is switched on in the morning, and part of fans do not need to continue to work after the power supply is switched on in the morning. According to the electric fan capable of being automatically disconnected in the power failure, when the mode selection switch S191a is in the power failure automatic disconnection mode, the fan starts to work when the button SB-193a is pressed, the contactor KM92a is pulled in, meanwhile, the normally open contact KM-194a of the contactor is closed, the working state of the electric fan is kept, when the electric fan is powered off, the contactor KM92a is powered off and disconnected, meanwhile, the normally open contact KM-194a is disconnected, when the electric fan is powered on again, the electric fan is still kept in the power failure state, and therefore the fan is prevented from continuing to work after being powered on again. When the mode selection switch S191a is in the normal mode, the fan operates normally. And when the fan is at the during operation, can drive the rotation of fan head 62 intermittent type on the stand 4 once to stop through intermittent mechanism 3 to make fan head 62 can 360 degrees all-round rotation regulation, improve fan head 62's the scope of blowing, let fan head 62 people all around all can blow wind, can carry out manual regulation at will to fan head 62's angle through adjusting part 5 in addition, conveniently blow each angular direction.

In the embodiment of the present invention, referring to fig. 1 and 4, the intermittent mechanism 3 includes a motor 31, a single gear 32, a full gear 33 and a rotating rod 34, the motor 31 is fixedly installed on the inner bottom wall of the box body 2, the single gear 32 is fixedly connected with the output end of the motor 31, the rotating rod 34 is rotatably connected with the inner bottom wall of the box body 2, the full gear 33 is fixedly connected with the rod wall of the rotating rod 34 located inside the box body 2, and one end of the rotating rod 34 located outside the box body 2 is connected with the upright post 4;

it should be noted that: the work of starter motor 31 drives and rotates rather than output fixed connection's single gear 32, it is convenient for stir a section distance of full gear 33 rotation and stops again to rotate the round for single gear 32, so single gear 32 can drive full gear 33 and bull stick 34 when rotating and carry out intermittent type and rotate, thereby can drive fan head 62 on the installation shell 61 through stand 4 and once stop in intermittent type's rotation, make fan head 62 can 360 degrees all-round rotations, be convenient for blow to the people of different positions all around, heighten fan head 62's the scope of blowing.

In the embodiment of the present invention, referring to fig. 1, the upright post 4 includes a supporting cylinder 41, a supporting rod 42 and a first bolt 43, the supporting cylinder 41 is fixedly installed at the top of the rotating rod 34, the supporting rod 42 is slidably connected inside the supporting cylinder 41, and the first bolt 43 is in threaded connection with the side wall of the supporting cylinder 41 near the top;

it should be noted that: the supporting rod 42 is drawn up and down from the supporting cylinder 41, so that the height of the fan head 62 on the mounting shell 61 can be adjusted, the fan head 62 is convenient to face the height to be blown, then the first bolt 43 is rotated to move to abut against the inner wall of the supporting rod 42, the supporting rod 42 and the supporting cylinder 41 are locked, and the height of the fan head 62 is fixed.

In an embodiment of the present invention, referring to fig. 3, the adjusting assembly 5 includes a first connecting rod 51, a second connecting rod 52, a ball 53, a rotating sleeve 54 and a second bolt 55, the first connecting rod 51 is fixedly connected to one end of the supporting rod 42 away from the supporting cylinder 41, the second connecting rod 52 is fixedly connected to a side wall of the mounting shell 61, the ball 53 is fixedly connected to an end surface of the first connecting rod 51, the rotating sleeve 54 is fixedly connected to an end surface of the second connecting rod 52, the ball 53 is movably connected to an inside of the rotating sleeve 54, and the second bolt 55 is screwed to a side wall of the rotating sleeve 54;

the outer wall of the second connecting rod 52 is provided with a toggle assembly 7, the toggle assembly 7 comprises a fixed sleeve 71, a first screw 72 and a handle 73, the fixed sleeve 71 is fixedly arranged on the outer wall of the second connecting rod 52, the first screw 72 is fixedly arranged at the bottom of the fixed sleeve 71, and the handle 73 is in threaded connection with the rod wall of the first screw 72;

it should be noted that: the handle 73 is rotated to screw out the first screw rod 72, then the handle 73 is grasped to randomly stir the fan head 62 on the second connecting rod 52 according to needs, the fan head 62 can move towards all angles outside the ball 53 through the rotating sleeve 54, so that the angle of the fan head 62 can be randomly adjusted, then the second bolt 55 is rotated to move to abut against the outer wall of the ball 53, the ball 53 is locked inside the rotating sleeve 54, and the position of the fan head 62 with the adjusted angle can be fixed.

In the embodiment of the present invention, please refer to fig. 1 and 2, the four corners of the top of the base 1 are provided with the moving assemblies 8, each of the moving assemblies 8 includes a curved rod 81, a partition plate 82, a second screw 83, a pulley 84, a rotating handle 85 and a limiting block 86, the four corners of the top of the base 1 are fixedly provided with the partition plates 82 through the curved rods 81, the surface of each partition plate 82 is in threaded connection with the second screw 83, the bottom of each second screw 83 is rotatably connected with the pulley 84, the top of each second screw 83 is fixedly provided with the rotating handle 85, the rod wall of each second screw 83 close to the top is fixedly provided with the limiting block 86, and the surface of the base 1 is provided with the notch 11 for the pulley 84 to move;

the bottom of the base 1 is fixedly provided with an anti-skid pad 9;

it should be noted that: can ground contact through slipmat 9 of base 1 ground bottom, can improve the frictional force on base 1 and ground, improve the stability of base 1 and prevent that base 1 from taking place to rock the displacement, and when needs move the fan on base 1, can be with the lift of base 1 slope, then rotate second screw 83 through changeing 85 and can drive pulley 84 and pass notch 11 and ground contact, and can make pulley 84 will be blocked when the removal passes notch 11 through stopper 86, the position that is convenient for each group of pulley 84 moves down is the same, keep base 1 to be in the horizontality.

In the embodiment of the present invention, referring to fig. 1 and 5, a power-off automatic opening assembly 9a is installed inside the base 1, and the power-off automatic opening assembly 9a includes a mode selection switch S191a, a contactor KM92a, a button SB-193a, and a normally open contact KM-194a of the contactor KM;

it should be noted that: when the mode selection switch S191a is in the power-off automatic-off mode, the fan starts to work by pressing the button SB-193a, the contactor KM92a is attracted, the normally open contact KM-194a of the contactor is closed, the working state of the fan is kept, when the power is off, the contactor KM92a is disconnected after power is lost, the normally open contact KM-194a is disconnected, when the power is on again, the fan is still kept in the power-off state, and therefore the fan is prevented from continuing to work after the power is on again. When the mode selection switch S191a is in the normal mode, the fan operates normally.

The working principle of the electric fan capable of automatically disconnecting after power failure provided by the utility model is as follows: when the mode selection switch S191a is in a power-off automatic-off mode, the fan starts to work by pressing a button SB-193a, the contactor KM92a is attracted, the normally open contacts KM-194a of the contactor are closed, the working state of the fan is kept, when the power is off, the contactor KM92a is powered off and disconnected, the normally open contacts KM-194a are disconnected, when the power is on again, the fan is still kept in the power-off state, and therefore the fan is prevented from continuing to work after the power is on again. When the mode selection switch S191a is in the normal mode, the fan operates normally. The mechanical part can adjust the height of the fan head 62 on the mounting shell 61 by pulling the support rod 42 up and down from the support cylinder 41, so as to facilitate the fan head 62 to face the height to be blown, then rotate the first bolt 43 to move to abut against the inner wall of the support rod 42, lock the support rod 42 and the support cylinder 41, fix the height of the fan head 62, then start the motor 31 to work to drive the independent gear 32 fixedly connected with the output end thereof to rotate, whenever the independent gear 32 rotates for a circle to facilitate the shifting of the full gear 33 to rotate for a distance to stop, so that the independent gear 32 can drive the full gear 33 and the rotating rod 34 to rotate intermittently, thereby driving the fan head 62 on the mounting shell 61 to rotate for one time intermittently through the upright post 4, so as to enable the fan head 62 to rotate for 360 degrees in all directions, thereby facilitating the blowing of people at different positions around, the blowing range of the fan head 62 is increased, the handle 73 is rotated to screw out the first screw 72, then the handle 73 is grasped to randomly stir the fan head 62 on the second connecting rod 52 as required, the fan head 62 can move towards each angle outside the ball 53 through the rotating sleeve 54, so that the angle of the fan head 62 can be randomly adjusted, then the second bolt 55 is rotated to move to abut against the outer wall of the ball 53, the ball 53 is locked inside the rotating sleeve 54, the position of the fan head 62 with the adjusted angle can be fixed, the anti-skid pad 9 at the bottom of the base 1 can be contacted with the ground, the friction force between the base 1 and the ground can be improved, the stability of the base 1 is improved, the base 1 is prevented from shaking and shifting, when the fan on the base 1 needs to be moved, the base 1 can be obliquely lifted, then the second screw 83 is rotated through the rotating handle 85, the pulley 84 is driven to pass through the notch 11 to be contacted with the ground, and the pulley 84 can be blocked when moving through the notch 11 through the limiting block 86, so that the positions of the groups of pulleys 84 moving downwards are the same, the base 1 is kept in a horizontal state, the fan head 62 can swing in 360 degrees in all-dimensional intermittent mode, the blowing range is improved, the fan head 62 can be manually adjusted at any angle, and blowing in all angular directions is facilitated.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. An electric fan capable of automatically disconnecting after power failure, comprising:

the device comprises a base (1), wherein a box body (2) is fixedly arranged at the top of the base (1), and an intermittent mechanism (3) is arranged inside the box body (2);

the upright post (4), the upright post (4) is arranged at the top of the intermittent mechanism (3);

the adjusting assembly (5), the adjusting assembly (5) is installed on the top of the upright post (4);

the fan assembly (6) comprises a mounting shell (61) and a fan head (62), the mounting shell (61) is mounted on the adjusting assembly (5), and the fan head (62) is fixedly mounted on the side wall of the mounting shell (61);

the automatic power-off assembly (9a) is connected with the box body (2), and the automatic power-off assembly (9a) comprises a mode selection switch S1(91a), a contactor KM (92a), a button SB-1(93a) and a normally open contact KM-1(94a) of the contactor KM.

2. The electric fan with automatic power-off function according to claim 1, wherein the intermittent mechanism (3) comprises a motor (31), a single gear (32), a full gear (33) and a rotating rod (34), the motor (31) is fixedly installed on the inner bottom wall of the box body (2), the single gear (32) is fixedly connected with the output end of the motor (31), the rotating rod (34) is rotatably connected with the inner bottom wall of the box body (2), the full gear (33) is fixedly connected with the rod wall of the rotating rod (34) positioned inside the box body (2), and one end of the rotating rod (34) positioned outside the box body (2) is connected with the upright post (4).

3. The electric fan with automatic power failure disconnection as claimed in claim 2, wherein the upright (4) comprises a support cylinder (41), a support rod (42) and a first bolt (43), the support cylinder (41) is fixedly installed at the top of the rotating rod (34), the support rod (42) is slidably connected inside the support cylinder (41), and the first bolt (43) is in threaded connection with the side wall of the support cylinder (41) close to the top.

4. The electric fan with the automatic power failure disconnection function according to claim 3, wherein the adjusting assembly (5) comprises a first connecting rod (51), a second connecting rod (52), a ball (53), a rotating sleeve (54) and a second bolt (55), the first connecting rod (51) is fixedly connected with one end of the supporting rod (42) far away from the supporting cylinder (41), the second connecting rod (52) is fixedly connected with the side wall of the mounting shell (61), the ball (53) is fixedly connected with the end face of the first connecting rod (51), the rotating sleeve (54) is fixedly connected with the end face of the second connecting rod (52), the ball (53) is movably connected inside the rotating sleeve (54), and the second bolt (55) is in threaded connection with the side wall of the rotating sleeve (54).

5. The electric fan capable of automatically breaking after power failure as claimed in claim 4, wherein a toggle assembly (7) is mounted on the outer wall of the second connecting rod (52), the toggle assembly (7) comprises a fixed sleeve (71), a first screw (72) and a handle (73), the fixed sleeve (71) is fixedly mounted on the outer wall of the second connecting rod (52), the first screw (72) is fixedly mounted at the bottom of the fixed sleeve (71), and the handle (73) is in threaded connection with the rod wall of the first screw (72).

6. The electric fan capable of automatically disconnecting after power failure according to claim 1, wherein the four corners at the top of the base (1) are provided with moving components (8), the moving component (8) comprises a curved rod (81), a clapboard (82), a second screw (83), a pulley (84), a rotating handle (85) and a limiting block (86), the four corners of the top of the base (1) are fixedly provided with clapboards (82) through curved bars (81), the surface of the clapboard (82) is in threaded connection with a second screw rod (83), the bottom of the second screw rod (83) is in rotary connection with a pulley (84), a rotating handle (85) is fixedly arranged at the top of the second screw rod (83), a limit block (86) is fixedly arranged on the rod wall of the second screw rod (83) close to the top, the surface of the base (1) is provided with a notch (11) for the movement of the pulley (84).

7. The electric fan capable of automatically disconnecting after power failure as claimed in claim 1, wherein a non-slip mat (9) is fixedly installed at the bottom of the base (1).

8. The electric fan capable of automatically opening after power failure as claimed in claim 1, wherein the button SB-1(93a) is connected in parallel with the normally open contact KM-1(94a) of the contactor KM and then connected in series with the contactor KM (92a) and the first contact of the mode selection switch S1(91a) to form a first branch; the second contact of the mode selection switch S1(91a) forms a second branch, the first branch being connected in parallel with the second branch and in series with the main circuit.

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