CN112856520A

CN112856520A - Oil cup reminding device and range hood

Info

Publication number: CN112856520A
Application number: CN202110055311.8A
Authority: CN
Inventors: 张青松
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-05-28
Anticipated expiration: 2041-01-15
Also published as: CN112856520B

Abstract

The invention discloses an oil cup reminding device which comprises a hanging buckle, a rotary drum, a ball and an oil pointer, wherein one end of the rotary drum is arranged below the hanging buckle, the hanging buckle is used for placing an oil cup, and the hanging buckle moves along with the movement of the oil cup so as to press the rotary drum to rotate; the ball bearings are connected with the rotary drum and are used for sliding along with the rotation of the rotary drum; the oil pointer is connected with the ball through a flexible piece, and the oil pointer moves downwards along with the sliding of the ball. By adopting the invention, a user can judge that the oil collecting amount of the oil cup reaches the limit value through the released oil scale more intuitively and needs to clean the oil cup.

Description

Oil cup reminding device and range hood

Technical Field

The invention relates to an oil cup reminding device and a range hood.

Background

At present, the oil cup design with a gray window or no window is adopted for the overall attractive appearance of the range hood, and a user cannot well know the oil collection amount in the oil cup and is in danger of oil overflow.

Disclosure of Invention

The invention aims to overcome the defect that a user cannot visually know the oil collecting condition in an oil cup in the prior art, and provides an oil cup reminding device and a range hood.

The invention solves the technical problems through the following technical scheme:

the oil cup reminding device is characterized by comprising a hanging buckle, a rotary drum, a ball and an oil pointer, wherein one end of the rotary drum is arranged below the hanging buckle, the hanging buckle is used for placing an oil cup, and the hanging buckle moves along with the movement of the oil cup so as to press the rotary drum to rotate; the ball bearings are connected with the rotary drum and are used for sliding along with the rotation of the rotary drum; the oil pointer is connected with the ball through a flexible piece, and the oil pointer moves downwards along with the sliding of the ball.

In this scheme, hang and detain and can remove along with the removal of oil cup, hang the in-process that detains the removal, can push down the rotary drum that sets up in its below, the rotary drum rotates thereupon, after the rotation of rotary drum surpassed balanced position, the ball rolled from one side to the other side. The ball bearings are arranged, so that the oil level indicator can be restrained, and the oil cup can slightly move and change before reaching the preset oil collecting amount; on the other hand, the ball passes through the flexible piece and is connected with the oil pointer, and when oil cup oil collection volume reached the limit value, the ball slided relative rotary drum, and the oil pointer can release certain distance correspondingly to make the user judge through the oil pointer that releases more directly perceivedly that oil cup oil collection volume has reached the limit value, need clear up.

Preferably, the weight of the ball is greater than the weight of the oil pointer.

In the scheme, the weight of the ball is greater than that of the oil pointer, so that in the initial position, the ball can press down the rotary drum at one end, and the oil pointer is pressed down by the rotation of the rotary drum in the oil collecting process to move correspondingly; when the rotary drum rotates to the point that the ball starts to slide, the ball can rapidly move, so that the oil pointer instantly moves downwards for a certain distance, and is more obviously displayed to a user; when the oil cup is detached, the hanging buckle does not press the rotary drum along with the return of the hanging buckle to the initial position, and the rotary drum can rotate to the initial position through the balls.

Preferably, the rotating drum comprises a drum body and a rotating shaft, a cavity is arranged in the drum body, and the ball is arranged in the cavity; the rotating shaft is connected to the cylinder, and the cylinder rotates around the rotating shaft.

Preferably, the rotating shaft penetrates through the cylinder, and the ball and the oil pointer are respectively arranged on two sides of the rotating shaft.

In this scheme, the barrel is passed in the pivot, can be fixed with the barrel on the one hand, and on the other hand also can adjust the distance of ball and the relative pivot of oil pointer difference through the position of adjustment pivot to when the oil cup lift off the back, the ball can also pass through the gravity of self, makes the rotary drum get back to initial position. In addition, a flexible part with a certain length can be reserved, so that the release distance of the oil pointer is prolonged.

Preferably, the end of the end where the ball is located is a first end of the rotating drum, the end of the end where the oil pointer is located is a second end of the rotating drum, and the distance from the first end to the rotating shaft is larger than the distance from the second end to the rotating shaft.

Preferably, the upper end of the oil pointer is arranged at the lower side of one end of the rotary drum below the hanging buckle.

In this scheme, adopt foretell structure, hang and detain the one end that can act on the rotary drum after moving down, and when acting on the one end of rotary drum, the oil pointer also is pushed down and takes place to remove correspondingly to make the gravity change of oil cup can more directly perceivedly react out through the oil pointer.

Preferably, the oil cup reminding device further comprises a housing, and the hanging buckle, the rotary drum and the oil pointer are sequentially arranged in the housing from top to bottom; the bottom of casing is equipped with the through-hole, the through-hole is used for passing the oil pointer.

Preferably, the hanging buckle comprises a moving part arranged in the shell and a connecting part extending out of the shell, the oil cup is connected with the connecting part, and the moving part is used for moving in the shell along with the movement of the oil cup.

Preferably, a sliding hole is formed in one side face of the housing, and the moving part penetrates through the sliding hole and extends out of the housing.

In this scheme, through this slide opening, connecting portion can stretch out outside the casing in order to be connected with the oil cup to can restrict the distance that the removal portion removed through the length that sets up the slide opening, avoid hanging to detain and remove and fall out.

Preferably, the inner surface of the housing is provided with a guide groove, and the moving portion is disposed in the guide groove and can move in the guide groove.

Preferably, two sides of the hanging buckle are provided with limiting blocks for limiting the maximum distance of the hanging buckle in moving.

In this scheme, set up the stopper in the both sides of hanging the knot, this stopper can butt to the one end of guide way to the maximum distance that the knot removed is hung in the restriction.

Preferably, the oil cup reminding device further comprises an elastic part, two ends of the elastic part are respectively connected with the shell and the hanging buckle, and the elastic part is used for providing a pre-supporting force for the hanging buckle.

In this scheme, can provide the holding power in advance for hanging to detain through the elasticity portion to when can making the oil cup place on the couple subassembly, can stabilize at initial position through this holding power in advance. And after the oil cup is disassembled, the hanging buckle can be restored to the initial position through the elastic part.

A range hood is characterized by comprising the oil cup reminding device.

In this scheme, the lampblack absorber is through adopting foretell oil cup reminding device, hangs to detain and can remove along with the removal of oil cup, at the in-process that hangs to detain and remove, can push down the rotary drum that sets up in its below, and the rotary drum rotates thereupon, and after the rotation of rotary drum exceeded balanced position, the ball rolled from one side to the other side. The ball bearings are arranged, so that the oil level indicator can be restrained, and the oil cup can slightly move and change before reaching the preset oil collecting amount; on the other hand, the ball passes through the flexible piece and is connected with the oil pointer, and when oil cup oil collection volume reached the limit value, the ball slided relative rotary drum, and the oil pointer can release certain distance correspondingly to make the user judge through the oil pointer that releases more directly perceivedly that oil cup oil collection volume has reached the limit value, need clear up.

The positive progress effects of the invention are as follows: the hanging buckle can move along with the movement of the oil cup, the rotary drum arranged below the hanging buckle can be pressed down in the moving process of the hanging buckle, the rotary drum rotates along with the hanging buckle, and when the rotation of the rotary drum exceeds a balance position, the balls roll from one side to the other side. The ball bearings are arranged, so that the oil level indicator can be restrained, and the oil cup can slightly move and change before reaching the preset oil collecting amount; on the other hand, the ball passes through the flexible piece and is connected with the oil pointer, and when oil cup oil collection volume reached the limit value, the ball slided relative rotary drum, and the oil pointer can release certain distance correspondingly to make the user judge through the oil pointer that releases more directly perceivedly that oil cup oil collection volume has reached the limit value, need clear up.

Drawings

Fig. 1 is a schematic internal structural diagram of an oil cup reminding device provided by an embodiment of the invention, wherein a part of a rotating drum is in a sectional view;

fig. 2 is a schematic internal structural diagram of an oil cup reminding device provided by an embodiment of the invention, wherein a part of a rotating drum is in a sectional view;

fig. 3 is a schematic view of an internal structure of the oil cup reminding device according to the embodiment of the invention;

fig. 4 is a schematic view of an internal structure of the oil cup reminding device provided by the embodiment of the invention;

fig. 5 is an external perspective view of the oil cup reminding device provided by the embodiment of the invention;

fig. 6 is an external perspective view of the oil cup reminding device provided by the embodiment of the invention;

fig. 7 is a schematic view of an oil cup reminding device according to an embodiment of the present invention when an oil cup is placed;

fig. 8 is a schematic view of an oil cup reminding device according to an embodiment of the present invention when an oil cup is placed;

FIG. 9 is a schematic side view of an oil cup reminder according to an embodiment of the invention;

fig. 10 is a schematic view of an oil cup reminding device provided in an embodiment of the invention, which is arranged in a range hood and used for placing an oil cup;

fig. 11 is a schematic view of an oil cup reminding device provided in an embodiment of the invention, which is arranged in a range hood and in which an oil cup is placed;

fig. 12 is a schematic view of a user facing a viewing angle after the oil pointer in the oil cup reminding device provided by the embodiment of the invention moves downward.

Description of the reference numerals

Oil cup reminding device 1

Casing 110

Slide hole 111

Through hole 112

Guide groove 113

Position limiting part 114

Spacing rod 1141

Cover 120

Connecting piece 130

Mating face 140

Hanging buckle 200

Moving part 210

Connecting part 220

Projection 221

Stopper 230

Elastic part 400

First spring 411

Second spring 412

Rotating drum 510

First end 511

Second end 512

Ball 520

Oil pointer 530

Flexible member 540

Rotating shaft 550

Oil cup 2

Connecting hole 22

Kitchen ventilator 4

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

The invention provides an oil cup reminding device, as shown in fig. 1 to 4, the oil cup reminding device 1 comprises a hanging buckle 200, a rotary drum 510, a ball 520 and an oil pointer 530, one end of the rotary drum 510 is arranged below the hanging buckle 200, the hanging buckle 200 is used for placing an oil cup 2, and the hanging buckle 200 moves along with the movement of the oil cup 2 so as to press the rotary drum 510 to rotate; the balls 520 are connected to the drum 510, and the balls 520 are adapted to slide with the rotation of the drum 510; the oil pointer 530 is connected with the ball 520 by the flexible member 540, and the oil pointer 530 moves down as the ball 520 slides. Therefore, the hook 200 can move along with the movement of the oil cup 2, and the drum 510 provided below the hook 200 can be pressed down during the movement, the drum 510 rotates along with the movement, and when the rotation of the drum 510 exceeds the equilibrium position, the balls 520 roll from one side to the other side. By arranging the ball 520, on one hand, the oil pointer 530 can be restrained, so that the oil cup 2 can slightly move and change before reaching the preset oil collecting amount; on the other hand, the ball 520 is connected with the oil pointer 530 through the flexible member 540, when the oil collecting amount of the oil cup 2 reaches the limit value, the ball 520 slides relative to the rotary drum 510, and the oil pointer 530 can be correspondingly released for a certain distance, so that a user can more intuitively judge that the oil collecting amount of the oil cup 2 reaches the limit value through the released oil pointer 530 and needs to clean the oil cup.

As shown in fig. 1, 3 and 10, the oil cup 2 is connected to the buckle 200 in the initial state; in this state, the amount of oil collected in the oil cup 2 does not reach the limit value, and the oil level indicator 530 does not protrude. As shown in fig. 2, 4, 11 and 12, when the collected oil reaches a certain limit, the oil pointer 530 is fully extended and is located at the lower side of the oil cup 2 in the vertical direction, so that the user can know that the collected oil in the oil cup 2 reaches the certain limit and needs to clean the oil. In a specific implementation, the oil pointer 530 may be painted with a more striking color, such as red, to more intuitively attract the user's sight.

As a specific embodiment, the weight of the ball 520 is greater than the weight of the oil pointer 530.

Therefore, in the implementation, the effect similar to a seesaw can be achieved, specifically, in the initial position, the ball 520 can press down the rotating cylinder 510 at one end, so that during the oil collection process, the oil pointer 530 is pressed down by the rotation of the rotating cylinder 510, and the oil pointer 530 moves correspondingly; when the roller 510 rotates to the point that the ball 520 starts to slide, the ball 520 can move rapidly, so that the oil pointer 530 moves down a distance instantly, and is more obviously displayed to the user; when the oil cup 2 is detached, the hanging buckle 200 does not generate downward pressure on the rotating cylinder 510 as the hanging buckle 200 returns to the initial position, and the rotating cylinder 510 can rotate back to the initial position through the balls 520.

Specifically, as shown in fig. 1 to 4, in the initial position, the end of the drum 510 having the balls 520 is pressed down, and the end having the oil pointer 530 is lifted; when the rotary drum 510 rotates clockwise under the pressing action of the hanging buckle 200, one end with the oil pointer 530 is pressed; the rotating drum 510 continuously rotates until the rotating drum rotates to the horizontal position under the action of the hanging buckle 200; when the drum 510 goes over the horizontal position, the balls 520 slide from one side of the drum 510 to the other side of the drum 510, and accordingly, the oil pointer 530 rapidly moves down under the guidance of the flexible member 540.

In practice, the weights of the ball 520, the oil pointer 530, and the drum 510 may also be selected, as well as the position of the shaft 550 of the drum 510, such that in the initial position, the ball 520 and the drum 510 can remain depressed; when the hanging buckle 200 leaves the connecting end of the rotating cylinder 510 and the oil pointer 530, the rotating cylinder 510 and the oil pointer 530 can return automatically. For example, in the initial position, the drum is at an angle to the horizontal, which may range from 20 ° to 30 °, preferably 23 °; the rotating shaft 550 is positioned at one third of the position of the rotating drum 510 close to the oil pointer 530; then, the gravity of the rotating drum 510 is greater than the product of the gravity of the oil pointer 530 and the length of the connecting end of the rotating drum 510 and the oil pointer 530 from the rotating shaft 550; the weight of the ball 520 is greater than 2.5 times the weight of the oil pointer 530.

In a preferred embodiment, as shown in fig. 1 and 2, the drum 510 comprises a cylinder body and a rotating shaft 550, wherein a cavity is arranged in the cylinder body, and the balls 520 are arranged in the cavity; the rotation shaft 550 is connected to the drum, and the drum rotates around the rotation shaft 550.

As a preferred embodiment, as shown in fig. 1 to 4, a rotating shaft 550 passes through the cylinder, and the balls 520 and the oil pointer 530 are respectively disposed at both sides of the rotating shaft 550. Therefore, on the one hand, the cylinder can be fixed, and on the other hand, the distance between the ball 520 and the oil pointer 530 relative to the rotating shaft 550 can be adjusted by adjusting the position of the rotating shaft 550, so that when the oil cup 2 is detached, the ball 520 can return the rotating cylinder 510 to the initial position by its own weight. In addition, a certain length of the flexible member 540 can be reserved, thereby extending the release distance of the oil pointer 530.

In a preferred embodiment, as shown in fig. 1, the end of the ball 520 is a first end 511 of the rotating drum 510, the end of the oil pointer 530 is a second end 512 of the rotating drum 510, and the first end 511 is spaced from the rotating shaft 550 by a distance greater than the second end 512.

It should be noted that, in the specific implementation, the distance between the rotating shaft 550 and the first end 511 and the second end 512 may be set according to the rotation requirement and the length reservation requirement of the flexible member 540, and the ball 520 and the oil pointer 530 may also be weighted accordingly according to the actual situation. Through the selection of the weights of the ball 520 and the oil pointer 530, the selection of the position of the rotating shaft 550 of the rotating drum 510 and the arrangement of the length of the rotating shaft 550 from the two ends of the rotating drum 510, the effects of returning the ball 520 and releasing the oil pointer 530 to move downwards can be realized. The weight of the ball 520 and the oil pointer 530 can be selected by selecting different materials, for example, the ball 520 can be selected from a material with a higher density, and the oil pointer 530 can be selected from a material with a lower density. And the flexible member 540 may be a nylon cord or a steel cable, etc. flexible member 540.

As a preferred embodiment, as shown in fig. 1 to 4, the upper end of the oil pointer 530 is disposed at the lower side of the end of the drum 510 below the hanging buckle 200. In an implementation, one end of the rotating cylinder 510, to which the oil pointer 530 is connected, and the top end of the oil pointer 530 may be located right below the moving direction of the holder 200. Therefore, the hanging buckle 200 can act on one end of the rotating cylinder 510 after moving downwards, and the oil pointer 530 is pressed down to move correspondingly while acting on one end of the rotating cylinder 510, so that the gravity change of the oil cup 2 can be reflected through the oil pointer 530 more intuitively.

As a preferred embodiment, as shown in fig. 1 to 4, the oil cup reminding device 1 further includes a housing 110, and the hanging buckle 200, the rotating cylinder 510 and the oil pointer 530 are sequentially disposed in the housing 110 from top to bottom; the bottom of the housing 110 is provided with a through hole 112, and the through hole 112 is used for passing through the oil pointer 530.

As a preferred embodiment, as shown in fig. 1 to 5, the hanging buckle 200 includes a moving portion 210 disposed inside the housing 110 and a connecting portion 220 extending outside the housing 110, the oil cup 2 is connected to the connecting portion 220, and the moving portion 210 is configured to move inside the housing 110 along with the movement of the oil cup 2. The moving part 210 and the connecting part 220 can be connected by screw threads, for example, the end of the connecting part 220 has a screw structure, and the moving part 210 is provided with a corresponding threaded hole.

As a preferred embodiment, as shown in fig. 1 to 4, the oil cup reminding device 1 further includes an elastic portion 400, two ends of the elastic portion 400 are respectively connected to the housing 110 and the hanging buckle 200, and the elastic portion 400 is used for providing a pre-supporting force for the hanging buckle 200.

As a preferred embodiment, as shown in fig. 1 to 4, the elastic portion 400 includes a first spring 411 and a second spring 412, and the first spring 411 and the second spring 412 are oppositely disposed on two sides of the hanging buckle 200. Thereby making the force of the hanging buckle 200 more uniform and moving along the moving direction smoothly. The first spring 411 and the second spring 412 are further symmetrically disposed in the housing 110, two ends of the first spring 411 are respectively connected to the moving portion 210 and an inner wall of the housing 110, and two ends of the second spring 412 are respectively connected to the moving portion 210 and the inner wall of the housing 110. In practical implementation, the moving portion 210 can be pulled by the first spring 411 and the second spring 412 in the initial position and the moving process, so that on one hand, an initial pre-supporting force can be generated, and on the other hand, the hanging buckle 200 can be conveniently returned. The moving part 210 and the connecting part 220 can be connected by screw threads, for example, the end of the connecting part 220 has a screw structure, and the moving part 210 is provided with a corresponding threaded hole.

As shown in fig. 7 and 8, the elongated oil cup 2 is correspondingly provided with a connecting hole 22 at a corresponding position, and the connecting portion 220 of the hanging buckle 200 can be connected with the connecting hole 22, so that the oil cup 2 is connected to the hook assembly. Specifically, the connection hole 22 may be a trapezoidal hole. The end of the connection part 220 may have a protrusion 221 to restrict the movement of the oil cup 2. Through connecting portion 220 on the knot 200 and the connecting hole 22 on the oil cup 2 of hanging, can be convenient for be fixed in the oil cup 2 on the knot 200 of hanging, can avoid the deformation that mounting methods such as inserted sheet lead to, be difficult for the installation, easily lead to the emergence of situations such as oil cup 2 landing.

As a preferred embodiment, as shown in fig. 5, a sliding hole 111 is formed at one side surface of the housing 110, and the moving part 210 extends out of the housing 110 through the sliding hole 111. Therefore, the connecting portion 220 can extend out of the housing 110 to connect with the oil cup 2, and the length of the sliding hole 111 can be set to limit the moving distance of the moving portion 210, so as to prevent the hanging buckle 200 from moving out.

As a preferred embodiment, as shown in fig. 1, the inner surface of the housing 110 is provided with a guide groove 113, and the moving part 210 is disposed in the guide groove 113 and can move in the guide groove 113.

In a preferred embodiment, the notch of the guide groove 113 is provided with a stopper 114. As shown in fig. 1, the position-limiting portion 114 may be a position-limiting rod 1141 with two ends respectively connected to the groove walls, and the position-limiting rod 1141 may have a plurality of rods. Thereby, the displacement of the moving part 210 in the direction perpendicular to the paper surface can be avoided.

As a preferred embodiment, as shown in fig. 1, the hanging buckle 200 is provided with a limiting block 230 at both sides thereof for limiting the maximum distance of movement of the hanging buckle 200. Specifically, the stopper 230 is disposed at both sides of the buckle 200, and the stopper 230 can abut against one end of the guide groove 113, thereby limiting the maximum distance that the buckle 200 moves.

As a preferred embodiment, as shown in fig. 6, the oil cup reminding device 1 further includes a cover 120, the housing 110 is provided with a containing cavity, and the cover 120 covers an opening of the containing cavity. Therefore, on one hand, the cavity containing hanging buckle 200, the magnetic part, the elastic part 400 and other parts can be formed, and the oil smoke can be prevented from entering to pollute the inside. On the other hand, it is also possible to facilitate mounting of the respective portions.

In a preferred embodiment, as shown in fig. 5 and 6, the housing 110 is provided with a connecting member 130, the connecting member 130 extends outwardly from one side of the housing 110, and the connecting member 130 is used to connect the range hood 4. Thereby being capable of integrally installing the hook component at the corresponding position of the range hood 4. Specifically, the connecting member 130 is provided with a mounting hole through which the hook assembly can be connected to the range hood 4 in the form of screw connection or the like.

In a preferred embodiment, as shown in fig. 9, the mating surface 140 of the housing 110 and the oil cup 2 is a bevel. Therefore, on one hand, the gravity of the oil cup 2 and the collected oil can be partially distributed on the inclined plane, so that the oil cup 2 is compressed, and the oil cup 2 is firmly attached; on the other hand, the bending angles of the inner cavity of the oil cup 2 are all obtuse angles, so that the oil cup can be cleaned by a user in the aspect.

In a preferred embodiment, as shown in fig. 9, the angle of the inclination angle θ of the mating surface 140 is in the range of 3 ° to 10 °.

Preferably, the angle of inclination is 5 °.

The invention also provides a range hood 4, and the range hood 4 comprises the oil cup reminding device 1.

In this scheme, lampblack absorber 4 is through adopting foretell oil cup reminding device 1, and the knot 200 of hanging can remove along with the removal of oil cup 2, at the in-process that the knot 200 removed, can push down the rotary drum 510 that sets up in its below, and rotary drum 510 rotates thereupon, and after the rotation of rotary drum 510 exceeded balanced position, ball 520 rolled from one side to the other side. By arranging the ball 520, on one hand, the oil pointer 530 can be restrained, so that the oil cup 2 can slightly move and change before reaching the preset oil collecting amount; on the other hand, the ball 520 is connected with the oil pointer 530 through the flexible member 540, when the oil collecting amount of the oil cup 2 reaches the limit value, the ball 520 slides relative to the rotary drum 510, and the oil pointer 530 can be correspondingly released for a certain distance, so that a user can more intuitively judge that the oil collecting amount of the oil cup 2 reaches the limit value through the released oil pointer 530 and needs to clean the oil cup.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. The oil cup reminding device is characterized by comprising a hanging buckle, a rotary drum, a ball and an oil pointer, wherein one end of the rotary drum is arranged below the hanging buckle, the hanging buckle is used for placing an oil cup, and the hanging buckle moves along with the movement of the oil cup so as to press the rotary drum to rotate; the ball bearings are connected with the rotary drum and are used for sliding along with the rotation of the rotary drum; the oil pointer is connected with the ball through a flexible piece, and the oil pointer moves downwards along with the sliding of the ball.

2. The oil cup reminder device of claim 1, wherein the weight of the ball is greater than the weight of the oil pointer.

3. The oil cup reminding device of claim 1, wherein the rotating cylinder comprises a cylinder body and a rotating shaft, a cavity is arranged in the cylinder body, and the ball is arranged in the cavity; the rotating shaft is connected to the cylinder, and the cylinder rotates around the rotating shaft.

4. The oil cup reminding device as claimed in claim 3, wherein the rotating shaft penetrates through the cylinder body, and the ball and the oil pointer are respectively arranged on two sides of the rotating shaft.

5. The oil cup reminder device of claim 4, wherein the end of the end where the ball is located is a first end of the drum, the end of the end where the oil pointer is located is a second end of the drum, and the first end is spaced from the axis of rotation by a distance greater than the second end.

6. The oil cup reminding device as claimed in claim 4, wherein the upper end of the oil pointer is arranged at the lower side of one end of the rotating cylinder below the hanging buckle.

7. The oil cup reminding device according to claim 1, further comprising a housing, wherein the hanging buckle, the rotating cylinder and the oil pointer are sequentially arranged in the housing from top to bottom; the bottom of casing is equipped with the through-hole, the through-hole is used for passing the oil pointer.

8. The oil cup reminding device according to claim 7, wherein the hanging buckle comprises a moving part arranged in the shell and a connecting part extending out of the shell, the oil cup is connected with the connecting part, and the moving part is used for moving in the shell along with the movement of the oil cup.

9. The oil cup reminding device of claim 8, wherein a side of the housing is provided with a slide hole, and the moving part passes through the slide hole and extends out of the housing.

10. The oil cup reminding device according to claim 8, wherein the inner surface of the housing is provided with a guide groove, and the moving part is arranged in the guide groove and can move in the guide groove.

11. The oil cup reminding device of claim 10, wherein the two sides of the hanging buckle are provided with limit blocks for limiting the maximum distance of movement of the hanging buckle.

12. The oil cup reminding device according to claim 7, further comprising an elastic part, wherein two ends of the elastic part are respectively connected with the shell and the hanging buckle, and the elastic part is used for providing a pre-supporting force for the hanging buckle.

13. A range hood, characterized in that it comprises an oil cup reminder device according to any one of claims 1 to 12.