Oil cup detection mechanism and range hood with same

Abstract

The utility model discloses an oil cup detection mechanism and a range hood with the oil cup detection mechanism, and the oil cup detection mechanism comprises an oil cup which is provided with an oil cup hanging piece; the rocker switch comprises a support, a rocker and a counterweight part, the rocker is rotationally connected to the support, the first end of the rocker is connected with the counterweight part, and the second end of the rocker tilts upwards; the range hood main body is provided with an oil cup hanging lug and a first starting piece; when the oil cup hanging piece and the oil cup hanging lug are connected in place, the second end of the warping plate is located in the starting range of the first starting piece, and the first starting piece is started. When the oil liquid in the oil cup reaches the maximum value, the oil liquid reduces the pulling force of the counterweight piece on the first end of the warping plate, and the second end of the warping plate swings downwards and leaves the starting range of the first starting piece; compared with the prior art, the oil cup detection mechanism can detect whether the oil cup is installed in place on the range hood body or not through the rocker switch, can also detect whether the oil quantity in the oil cup reaches the maximum value or not, and is simple in structure and complete in function.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, and in particular to an oil cup detection mechanism and a range hood having the same. Background Art

[0002] When the range hood is working, the oil smoke enters the air collecting chamber of the range hood and is then discharged by the smoke exhaust fan. The oil and water in the oil smoke form oil liquid that accumulates on the volute of the smoke exhaust fan and flows into the oil collecting chamber of the range hood. The range hood is connected with an oil cup that is connected to the oil collecting chamber, and the oil cup is used to collect the oil liquid dripping from the oil collecting chamber. When a certain amount of oil liquid accumulates in the oil cup, it is necessary to remove the oil cup from the range hood to clean the oil liquid in the oil cup. Therefore, the range hood is provided with an oil quantity detection device that specifically detects the oil liquid in the oil cup. In order to facilitate users to remove the oil cup, the existing range hood is provided with a drive component that drives the oil cup to rise and fall. When a certain amount of oil liquid accumulates in the oil cup and the oil quantity detection device issues an early warning, the drive component extends the oil cup upward to facilitate users to remove the oil cup. However, when the user connects the oil cup to the range hood again, in order to detect that the oil cup is in place, a special oil cup in place detection device is also provided. Such a range hood requires an oil level detection device to detect the oil level in the oil cup, and also requires an oil cup position detection device to detect whether the oil cup is properly installed on the range hood. The structure is relatively complex and the cost is relatively high. Utility Model Content

[0003] The purpose of the utility model is to provide an oil cup detection mechanism and a range hood having the same, which are used to solve the above-mentioned technical problems.

[0004] An oil cup detection mechanism, used for a range hood, comprising:

[0005] An oil cup, which is provided with an oil cup pendant;

[0006] A seesaw switch is arranged in the oil cup, comprising a support, a seesaw and a counterweight, wherein the seesaw is rotatably connected to the support, a first end of the seesaw is connected to the counterweight, the counterweight is arranged in the oil cup, and a second end of the seesaw is tilted upward;

[0007] The range hood body is provided with an oil cup hanging ear for connecting with the oil cup hanging piece;

[0008] A first starting member, which is arranged on the range hood body;

[0009] Among them, when the oil cup hanger is connected to the oil cup hanging ear, the second end of the seesaw is located in the starting range of the first starting member and starts the first starting member; when the oil in the oil cup reaches a maximum value, the oil reduces the pulling force of the counterweight on the first end of the seesaw, the first end of the seesaw swings upward, and the second end of the seesaw swings downward and leaves the starting range of the first starting member.

[0010] According to one embodiment of the utility model, the first starting member is a micro switch, and the starting end of the micro switch is arranged downward; or the first starting member includes a Hall sensor and a magnet, one of the Hall sensor and the magnet is arranged on the range hood body, and the other is arranged at the second end of the seesaw.

[0011] According to one embodiment of the present invention, the distance from the first end of the seesaw to the rotational connection point with the support is L1, the distance from the second end of the seesaw to the rotational connection point with the support is L2, and L1≥L2.

[0012] According to one embodiment of the utility model, a limiting bracket is provided in the oil cup, a limiting groove is provided on the limiting bracket, the seesaw passes through the limiting groove and its first end and second end are respectively located on both sides of the limiting groove, and the seesaw is limited by the limiting groove in the front and rear directions.

[0013] According to an embodiment of the utility model, the oil cup hanger is formed by folding the upper edge of the limiting bracket.

[0014] According to one embodiment of the utility model, the rocker switch also includes a tension spring, the upper end of the tension spring is connected to the first end of the rocker, and the lower end of the tension spring is connected to the counterweight. When there is no oil in the oil cup, the tension spring is in a state of being stretched by the counterweight.

[0015] According to one embodiment of the utility model, a guide channel is provided at the first end of the seesaw, a guide column with a "T"-shaped cross-section is provided in the guide channel, and the guide column passes through the guide channel and is connected to the counterweight; a pressure sensor is provided at the first end of the seesaw, and the part of the guide column located above the guide channel is pressed onto the pressure sensor.

[0016] According to one embodiment of the utility model, it also includes a second starting member, the first starting member and the second starting member are respectively arranged on both sides of the range hood body, and a fixed switch member is also provided on the oil cup. When the oil cup hanger is connected to the oil cup hanging ear, the second end of the seesaw is located in the starting range of the first starting member and starts the first starting member, and the fixed switch member starts the second starting member.

[0017] A range hood adopts the above-mentioned oil cup detection mechanism, the range hood main body has an oil collecting chamber, the range hood main body also includes a driving assembly, the driving assembly is connected to the oil cup hanging ear through a connecting frame, the driving assembly has an extended state and a retracted state, when the driving assembly is in the extended state, after the seesaw activates the first starting member, the driving assembly switches to the retracted state and drives the oil cup to rise; when the driving assembly is in the retracted state, after the first starting member is activated by the second end of the seesaw to become a closed state, the driving assembly switches to the extended state and drives the oil cup to descend.

[0018] According to one embodiment of the utility model, the range hood body also includes a back plate, which is located at the front side of the oil collecting chamber. When the drive assembly is in an extended state, the oil cup is extended from under the back plate; when the drive assembly is in a retracted state, the oil cup is hidden behind the back plate; or the lower edge of the back plate extends into the oil cup.

[0019] Compared with the prior art, the oil cup detection mechanism of the utility model has the following advantages:

[0020] The oil cup detection mechanism of the utility model can detect whether the oil cup is installed in place on the range hood body and whether the oil volume in the oil cup reaches the maximum value through a rocker switch. The utility model has a simple structure and complete functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the oil cup detection mechanism of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure of the middle rocker switch;

[0023] Figure 3 It is a structural schematic diagram of the oil cup detection mechanism of the utility model in another direction;

[0024] Figure 4 It is a structural schematic diagram of a range hood with the oil cup detection mechanism of the utility model, in which the oil cup extends out from below the range hood body;

[0025] Figure 5 This is a front view of a range hood with the oil cup detection mechanism of the utility model removed from its back panel;

[0026] Figure 6 for Figure 5 Cross-section view in the AA direction;

[0027] Figure 7 for Figure 5 Cross-section along the middle BB direction;

[0028] Figure 8 for Figure 6 A partial enlarged view of middle A;

[0029] Fig. 9 for Figure 7 A partial enlarged view of B in the middle;

[0030] Fig.10 This is an embodiment of a range hood in which the oil cup is hidden behind the back panel;

[0031] In the figure: 1. oil cup, 11. oil cup hanger, 12. limit bracket, 121. limit slot, 122. fixed switch member, 2. rocker switch, 21. support, 22. rocker, 23. counterweight, 24. tension spring, 25. guide column, 3. range hood body, 31. oil cup hanging ear, 4. first starting member, 5. pressure sensor, 6. second starting member, 7. drive assembly, 71. connecting frame, 8. back plate.

[0032] The realization of the functions and advantages of the utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0037] See also Figure 1 and Figure 2The utility model discloses an oil cup detection mechanism, which is used for a range hood, and includes an oil cup 1, a rocker switch 2, a range hood body 3 and a first starter 4; the oil cup 1 is provided with an oil cup hanger 11, the rocker switch 2 is arranged in the oil cup 1, and includes a support 21, a rocker 22 and a counterweight 23, the rocker 22 is rotatably connected to the support 21, the first end of the rocker 22 is connected to the counterweight 23, the counterweight 23 is placed in the oil cup 1, the second end of the rocker 22 is tilted upward, and the range hood body 3 An oil cup hanging ear 31 for connecting to the oil cup hanger 11 is provided; the first starting member 4 is arranged on the range hood body 3; wherein, when the oil cup hanger 11 is connected to the oil cup hanging ear 31 in place, the second end of the seesaw 22 is located in the starting range of the first starting member 4 and starts the first starting member 4; when the oil in the oil cup 1 reaches the maximum value, the oil reduces the pulling force of the counterweight 23 on the first end of the seesaw 22, the first end of the seesaw 22 swings upward, and the second end of the seesaw 22 swings downward and leaves the starting range of the first starting member 4. When the oil cup detection mechanism of the utility model is applied to the range hood, it can detect whether the oil cup 1 is installed in place on the range hood main body 3, and can also detect whether the oil amount in the oil cup 1 has reached the maximum value; the first end of the seesaw 22 of the seesaw switch 2 is always in a downward tilted state due to the gravity of the counterweight 23, and the second end of the seesaw 22 is always in an upward tilted state. When there is no oil in the oil cup 1, if the oil cup 1 is installed in place on the range hood main body 3, the second end of the seesaw 22 is located in the starting range of the first starting member 4 and starts the first starting member 4. After the first starting member 4 is started, the range hood can send a signal of being in place; when the oil cup 1 can be automatically raised and lowered, the driving mechanism of the range hood will drive the oil cup 1 to rise; after the oil cup 1 is hung on the range hood main body 3, when the range hood is working, the oil and water in the oil smoke will flow toward The oil flows in the oil collecting chamber of the range hood, and the oil cup 1 is connected with the oil collecting chamber of the range hood. The oil in the oil collecting chamber will flow into the oil cup 1, and the oil in the oil cup 1 will generate a buoyancy on the counterweight 23, and the buoyancy is transmitted upward through the counterweight 23 to the first end of the seesaw 22; when the oil accumulates to the maximum amount in the oil cup 1, the buoyancy of the oil on the counterweight 23 will cause the counterweight 23 to move upward, and the counterweight 23 will then cause the first end of the seesaw 22 to swing upward, and at the same time, the second end of the seesaw 22 will swing downward. After the second end of the seesaw 22 swings downward and leaves the start range of the first starter 4, the first starter 4 is closed, and the range hood can issue a warning signal to prompt the user to clean the oil cup 1; when the oil cup 1 can be automatically raised and lowered, the driving mechanism of the range hood will automatically drive the oil cup 1 to descend, so that the user can remove the oil cup 1 from the range hood body 3 and clean it. After cleaning the oil cup 1, the oil cup 1 is installed in place on the range hood body 3 again, and the first starter 4 is started again. The oil cup detection mechanism of the utility model can detect whether the oil cup 1 is installed in place on the range hood body 3 through a rocker switch, and can also detect whether the oil amount in the oil cup 1 reaches the maximum value. It has a simple structure and complete functions.

[0038] See also Figure 2 In the oil cup detection mechanism of the utility model, the counterweight 23 adopts a structure with a larger bottom area and a smaller top area, such as a cone. In this way, when the gravity of the counterweight 23 is the same, the larger the cross-sectional area of ​​the lower end part, the higher the oil height in the oil cup when the counterweight 23 is not completely sunk in the oil, and the greater the force acting on the counterweight 23.

[0039] See also Figure 1 and Figure 2 In the oil cup detection mechanism of the utility model, a limiting bracket 12 is provided inside the oil cup 1, and a limiting groove 121 is provided on the limiting bracket 12. The seesaw 22 passes through the limiting groove 121 and has its first end and second end respectively located on both sides of the limiting groove 121. The seesaw 22 is limited by the limiting groove 121 in the front-to-back direction. When the oil cup 1 is installed, the oil cup hanger 11 overlaps the oil cup hanging ear 31, and the oil cup 1 moves from the front side to the rear side of the range hood body 3. During the movement, in order to prevent the second end of the seesaw 22 from being stressed and moving forward and backward, a limiting bracket 12 is provided inside the oil cup 1. The limiting bracket 12 limits the seesaw 22 so that the seesaw 22 cannot move in the front-to-back direction. When the force on the first end of the seesaw 22 changes, the first end and the second end of the seesaw 22 can only swing up and down.

[0040] exist Figure 2 In the shown embodiment, the first starting member 4 adopts a micro switch, and the starting end of the micro switch is set downward. After the oil cup 1 is installed in place on the range hood body 3, the second end of the seesaw 22 abuts against the starting end of the micro switch and presses the starting end of the micro switch upward to start the micro switch; when the oil in the oil cup 1 reaches the maximum value, the counterweight 23 moves upward under the buoyancy of the oil, and the first end of the seesaw 22 swings upward, causing the second end of the seesaw 22 to swing upward. After swinging to a certain amplitude, the second end of the seesaw 22 leaves the starting end of the micro switch, the micro switch is closed, and the range hood issues an early warning to remind the user to clean the oil cup 1; or the driving component of the range hood automatically extends the oil cup 1 downward, allowing the user to clean the oil cup 1. When a micro switch is used as the first starting member 4, when the oil cup 1 is installed to the range hood body 3, the second end of the rocker 22 is always tilted upward and higher than the lowest point of the starting end of the micro switch. During the installation process, the second end of the rocker 22 is subjected to the downward pressure of the contacts of the micro switch, and generates resistance to the rocker 22 moving backward with the oil cup 1; therefore, the limit groove 121 on the limit bracket 12 limits the rocker 22 forward and backward, thereby preventing the second end of the rocker 22 from shifting or deforming.

[0041] In other embodiments, the first starting member 4 includes a Hall sensor and a magnet, the Hall sensor is arranged on the range hood body 3, and the magnet is arranged on the second end of the seesaw 22. After the oil cup 1 is installed in place, the magnet on the second end of the seesaw 22 is aligned with the Hall sensor on the range hood body 3, and the magnet is within the sensing range of the Hall sensor; when the amount of oil in the oil cup 1 increases to cause the second end of the seesaw 22 to swing downward and the magnet leaves the sensing range of the Hall sensor, the range hood issues an early warning to remind the user to clean the oil cup 1; or the driving component of the range hood automatically extends the oil cup 1 downward, allowing the user to clean the oil cup 1.

[0042] See also Figure 2 In the oil cup detection mechanism of the utility model, the distance from the first end of the seesaw 22 to the rotation connection point between the seesaw 22 and the support 21 is L1, and the distance from the second end of the seesaw 22 to the rotation connection point between the seesaw 22 and the support 21 is L2, and L1≥L2. In this way, when the amount of oil in the oil cup 1 reaches the maximum value, the swing range of the first end of the seesaw 22 is greater than or equal to the swing range of the second end of the seesaw 22. In order to make the oil cup 1 have a certain capacity, L1>1.5L2 is usually set, so that the first end of the seesaw 22 swings a relatively large range, that is, the counterweight 23 rises to a certain range, and the second end of the seesaw 22 will leave the start range of the first starter 4.

[0043] See also Figure 1 and Figure 3 In the oil cup detection mechanism of the utility model, the oil cup hanger 11 is formed by folding the upper edge of the limit bracket 12. The oil cup hanger 11 is directly formed by folding the upper edge of the limit bracket 12. After the limit bracket 12 is fixed in the oil cup 1, the oil cup hanger 11 can be fixed in the oil cup 1, simplifying the structure and process.

[0044] See also Figure 2 The oil cup detection mechanism of the utility model, the rocker switch 2 also includes a tension spring 24, the upper end of the tension spring 24 is connected to the first end of the rocker 22, and the lower end of the tension spring 24 is connected to the counterweight 23. When there is no oil in the oil cup 1, the tension spring 24 is in a state of being stretched by the counterweight 23. When the oil in the oil cup 1 increases, the buoyancy of the oil on the counterweight 23 begins to increase, and the tension of the counterweight 23 on the tension spring 24 begins to decrease. The tension spring 24 begins to contract and pulls the counterweight 23 upward, and at the same time pushes up the first end of the rocker 22. When the oil increases to a certain amount, the height of the tension spring 24 pushing up the first end of the rocker 22 is enough to make the second end of the rocker 22 leave the starting range of the first starting member 4, and the range hood issues an early warning to remind the user to clean the oil cup 1; or the driving component of the range hood automatically extends the oil cup 1 downward, so that the user can clean the oil cup 1.

[0045] See also Figure 2In the oil cup detection mechanism of the utility model, a guide channel is provided at the first end of the seesaw 22, and a guide column 25 with a "T"-shaped cross section is provided in the guide channel. The guide column 25 passes through the guide channel and is connected to the counterweight 23; a pressure sensor 5 is provided at the second end of the seesaw 22, and the part of the guide column 25 located above the guide channel is pressed on the pressure sensor 5. When there is no oil in the oil cup 1, the pressure borne by the pressure sensor 5 is the first pressure. When the oil in the oil cup 1 gradually increases, the pressure borne by the pressure sensor 5 gradually decreases. When the oil in the oil cup 1 reaches the maximum value, the pressure borne by the pressure sensor 5 is the large and small pressures. When the pressure borne by the pressure sensor 5 reaches the minimum value, the range hood can also issue an early warning to remind the user to clean the oil cup 1; or the driving component of the range hood automatically extends the oil cup 1 downward, so that the user can clean the oil cup 1. The pressure sensor 5 and the first starter 4 monitor the amount of oil in the oil cup 1 at the same time.

[0046] See also Figure 2 The oil cup detection mechanism of the utility model further includes a second starter 6. The first starter 4 and the second starter 6 are arranged on both sides of the range hood body 3. A fixed switch 122 is also arranged on the oil cup 1. When the oil cup hanger 11 is connected to the oil cup hanging ear 31, the second end of the seesaw 22 is located in the start range of the first starter 4 and starts the first starter 4. The fixed switch 122 starts the second starter 6. After the oil cup 1 is installed in place on the range hood body 3, the first starter 4 and the second starter 6 are started at the same time. When the oil in the oil cup 1 reaches the maximum value, the first starter 4 is turned off, and the second starter 6 is still in the start state, which can facilitate the range hood control system to identify and warn whether the range hood is not installed in place or the oil in the oil cup 1 reaches the maximum value. That is, when the first starting member 4 and the second starting member 6 are started at the same time, it means that the oil cup 1 is installed in place and the oil in the oil cup 1 has not reached the maximum value; when the first starting member 4 is started and the second starting member 6 is not started, it means that the oil cup 1 is not installed in place; when the first starting member is not started and the second starting member 6 is started, it means that the rocker switch 2 is faulty and the user needs to check or replace the rocker switch 2.

[0047] See also Figures 4 to 9The utility model also discloses a range hood. The range hood disclosed in the utility model adopts the above-mentioned oil cup detection mechanism. The range hood body 3 has an oil collecting chamber. The range hood body 3 also includes a driving assembly 7. The driving assembly 7 is connected to the oil cup hanging ear 31 through a connecting frame 71. The driving assembly 7 has an extended state and a retracted state. When the driving assembly 7 is in the extended state, after the seesaw 22 starts the first starting member 4, the driving assembly 7 switches to the retracted state and drives the oil cup 1 to rise; when the driving assembly 7 is in the retracted state, after the first starting member 4 is started by the second end of the seesaw 22 to become a closed state, the driving assembly 7 switches to the extended state and drives the oil cup 1 to descend. Due to the adoption of the above-mentioned oil cup detection mechanism, the oil cup 1 can be automatically raised and lowered. Only after the oil cup 1 is installed in place, the driving component 7 will drive the oil cup 1 upward to make the oil cup 1 rise; when the oil in the hidden oil cup 1 increases to the maximum value, the second end of the seesaw 22 swings downward and leaves the starting range of the first starting member 4. The first starting member 4 is closed, and the range hood issues an early warning to remind the user to clean the oil cup. The user can actively start the driving component 7 to extend the oil cup 1 downward, or the driving component 7 automatically extends the oil cup 1, allowing the user to clean the oil cup.

[0048] See also Figures 4 to 9 In the range hood of the present invention, the range hood body 3 further includes a back plate 8, which is located at the front side of the oil collecting chamber. When the drive assembly 7 is in the extended state, the oil cup 1 is extended below the back plate 8; when the drive assembly 7 is in the retracted state, the oil cup 1 is hidden behind the back plate 8. After the oil cup 1 is installed in place, the first starter 4 is started. When there is a second starter 6, the second starter 6 is also started, and the drive assembly 7 lifts the oil cup 1 upward. At this time, the oil cup 1 will not interfere with the back plate 8 in the above process. When the oil cup rises to the right position, the oil cup 1 is hidden behind the back plate 8, and the oil cup 1 is aligned with the oil dripping hole of the oil collecting chamber, and the oil in the oil collecting chamber can drip into the oil cup 1; when the oil in the oil cup 1 accumulates to a certain amount, the second end of the seesaw 22 swings downward, the first starter 4 is closed, and the range hood issues an early warning to remind the user to clean the oil cup. The user can actively start the drive assembly 7 to extend the oil cup 1 downward, or the drive assembly 7 automatically extends the oil cup 1, so that the user can clean the oil cup.

[0049] See also Fig.10 ,exist Fig.10In the embodiment of the range hood shown, the range hood body 3 further includes a back plate 8, which is located at the front side of the oil collecting chamber. When the drive assembly 7 is in the extended state, the oil cup 1 is extended below the back plate 8; when the drive assembly 7 is in the retracted state, the lower edge of the back plate 8 extends into the oil cup 1. After the oil cup 1 is installed in place, the first starter 4 is started. When there is a second starter 6, the second starter 6 is also started, and the drive assembly 7 lifts the oil cup 1 upward. At this time, the oil cup 1 will not interfere with the back plate 8 in the above process. When the oil cup rises to the right position, the oil cup 8 moves to the bottom of the back plate 8, and the lower edge of the back plate 8 extends into the oil cup 1. The inner side of the back plate 8 can extend into the oil cup 1 through the lower edge of the back plate 8.

[0050] In the range hood of the present invention, the driving assembly 7 adopts an electric push rod, the driving end of the electric push rod is connected to the connecting frame 71, the first starter 4 is arranged on one side wall of the connecting frame 71, and in the case of having a second starter 6, the second starter 6 is arranged on the other side wall of the connecting frame 71, so that when the oil cup 1 is installed in place, the first starter 4 and the second starter 6 are both started. The connecting frame 71 has an oil receiving groove, and the bottom of the oil receiving groove is provided with an oil dripping hole, the oil dripping hole is aligned with the oil cup 1, and the width of the connecting frame 71 is smaller than the width of the oil cup 1, so that after the oil cup 1 is installed in place on the connecting frame 71, the rocker switch 2 and the fixed switch member 122 respectively start the first starter 4 and the second starter 6 from the outside of the connecting frame 71, and the oil stains at the bottom of the connecting frame 71 will not stick to the first starter 4 and the second starter 6.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil cup detection mechanism, used for a range hood, characterized in that: include: An oil cup (1) provided with an oil cup hanger (11); A seesaw switch (2) is arranged in the oil cup (1), comprising a support (21), a seesaw (22) and a counterweight (23), wherein the seesaw (22) is rotatably connected to the support (21), a first end of the seesaw (22) is connected to the counterweight (23), the counterweight (23) is placed in the oil cup (1), and a second end of the seesaw (22) is tilted upward; A range hood body (3), provided with an oil cup hanging ear (31) for connecting to the oil cup hanging member (11); a first starting member (4) disposed on the range hood body (3); When the oil cup hanger (11) is connected to the oil cup hanging ear (31) in place, the second end of the seesaw (22) is located in the starting range of the first starting member (4) and starts the first starting member (4); when the oil in the oil cup (1) reaches a maximum value, the oil reduces the pulling force of the counterweight (23) on the first end of the seesaw (22), the first end of the seesaw (22) swings upward, and the second end of the seesaw (22) swings downward and leaves the starting range of the first starting member (4).

2. The oil cup detection mechanism according to claim 1, characterized in that: The first starter (4) is a micro switch, and the starter end of the micro switch is arranged to face downward; or the first starter (4) includes a Hall sensor and a magnet, one of the Hall sensor and the magnet is arranged on the range hood body (3), and the other is arranged on the second end of the seesaw (22).

3. The oil cup detection mechanism according to claim 1, characterized in that: The distance from the first end of the seesaw (22) to the rotational connection point between the seesaw (22) and the support (21) is L1, and the distance from the second end of the seesaw (22) to the rotational connection point between the seesaw (22) and the support (21) is L2, where L1≥L2.

4. The oil cup detection mechanism according to claim 1, characterized in that: A limiting bracket (12) is provided in the oil cup (1), a limiting groove (121) is provided on the limiting bracket (12), the seesaw (22) passes through the limiting groove (121) and has its first end and second end respectively located on two sides of the limiting groove (121), and the seesaw (22) is limited by the limiting groove (121) in the front-rear direction.

5. The oil cup detection mechanism according to claim 4, characterized in that: The oil cup hanger (11) is formed by folding the upper edge of the limiting bracket (12).

6. The oil cup detection mechanism according to claim 1, characterized in that: The rocker switch (2) further comprises a tension spring (24), the upper end of the tension spring (24) being connected to the first end of the rocker (22), and the lower end of the tension spring (24) being connected to the counterweight (23); when there is no oil in the oil cup (1), the tension spring (24) is in a state of being stretched by the counterweight (23).

7. The oil cup detection mechanism according to claim 6, characterized in that: A guide channel is provided at the first end of the seesaw (22), a guide column (25) having a T-shaped cross section is provided in the guide channel, and the guide column (25) passes through the guide channel and is connected to the counterweight (23); a pressure sensor (5) is provided at the first end of the seesaw (22), and a portion of the guide column (25) located above the guide channel is pressed onto the pressure sensor (5).

8. The oil cup detection mechanism according to claim 1, characterized in that: The invention also comprises a second starting member (6), wherein the first starting member (4) and the second starting member (6) are respectively arranged on two sides of the range hood body (3), and a fixed switch member (122) is also arranged on the oil cup (1), and when the oil cup hanger (11) is connected to the oil cup hanging ear (31), the second end of the seesaw (22) is located in the starting range of the first starting member (4) and the first starting member (4) is started, and the fixed switch member (122) starts the second starting member (6).

9. A range hood, using the oil cup detection mechanism according to any one of claims 1 to 8, characterized in that: The range hood body (3) has an oil collecting chamber. The range hood body (3) also includes a driving assembly (7). The driving assembly (7) is connected to the oil cup hanging ear (31) via a connecting frame (71). The driving assembly (7) has an extended state and a retracted state. When the driving assembly (7) is in the extended state, after the seesaw (22) activates the first activation member (4), the driving assembly (7) switches to the retracted state and drives the oil cup (1) to rise. When the driving assembly (7) is in the retracted state, after the first activation member (4) is activated by the second end of the seesaw (22) and changes to a closed state, the driving assembly (7) switches to the extended state and drives the oil cup (1) to descend.

10. The range hood according to claim 9, characterized in that: The range hood body (3) further comprises a back plate (8), wherein the back plate (8) is located at the front side of the oil collecting chamber, and when the drive assembly (7) is in an extended state, the oil cup (1) is extended from below the back plate (8); when the drive assembly (7) is in a retracted state, the oil cup (1) is hidden behind the back plate (8); or the lower edge of the back plate (8) extends into the oil cup (1).

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