Rotation structure for desktop range hood and desktop range hood

Abstract

The utility model relates to the field of desktop range hoods, in particular to a rotating structure for a desktop range hood and the desktop range hood. The rotating structure for the desktop range hood comprises a range hood body, the range hood body comprises a smoke suction assembly, a base and a rotating assembly, a sliding face is arranged on the side, close to the smoke suction assembly, of the base, the section of the sliding face is in an arc or spherical shape, and the smoke suction assembly is provided with a sliding end which is attached to the sliding face and can slide relative to the sliding face. The rotating assembly drives the sliding end to slide along the sliding face so that the smoke suction assembly can rotate relative to the base. Through the arrangement of the smoke suction assembly, the base and the rotating assembly, the position of the smoke suction opening can be flexibly adjusted; the base is provided with an arc-shaped or spherical sliding surface, and the smoke suction assembly can slide along the arc-shaped or spherical sliding surface to realize rotating and pitching effects, so that the problem of fixation of a smoke suction port of a traditional range hood is solved, seamless connection of the smoke suction assembly and the base is realized, cleaning is facilitated, and hands are prevented from being pinched.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of desktop range hood, concretely is a kind of rotation structure and desktop range hood for desktop range hood. BACKGROUND

[0002] As one of the common equipment in kitchen, desktop range hood is mainly used to absorb oil fume and peculiar smell generated in cooking process in time.However, there are still some deficiencies in the actual use of current market desktop range hood, first, the current desktop range hood smoke suction port position cannot be adjusted according to the specific placement of cooking utensils or changes in cooking process, resulting in that part of the oil fume cannot be extracted in time when user carries out different types of cooking activities.Secondly, the smoke suction port position of smoke suction device cannot be adjusted according to actual situation, so that user needs to frequently adjust the position of pot or change his standing position to adapt to smoke suction device.

[0003] Therefore, it is necessary to develop a kind of rotation structure and desktop range hood for desktop range hood, which can adjust the position of smoke suction port to adapt to different cooking utensils placement and user operation requirements, and ensure effective oil fume absorption. INVENTION CONTENTS

[0004] In view of the problem that the smoke suction port position of smoke suction device in the prior art cannot be adjusted, resulting in inconvenient user operation, the technical scheme adopted by the utility model to solve its technical problem is:

[0005] A kind of rotation structure for desktop range hood, including range hood main body, wherein the range hood main body includes smoke suction assembly, base located below the smoke suction assembly and rotation assembly connecting the smoke suction assembly and base, the base is equipped with sliding surface near one side of the smoke suction assembly, the sliding surface cross section is arranged in arc or spherical shape, the smoke suction assembly is equipped with sliding end that is attached to sliding surface and can slide relative to sliding surface, the sliding end is slid along sliding surface by the rotation assembly, so that the smoke suction assembly rotates relative to the base.

[0006] Further, the rotation structure for desktop range hood according to the scheme, wherein the smoke suction assembly is equipped with sliding cavity for the base to extend into, the sliding end is arranged at the cavity mouth side of the sliding cavity, and abuts against the sliding surface, the rotation center of the rotation assembly coincides with the center of the sliding surface cross section.

[0007] Further, the rotation structure for desktop range hood according to the scheme, wherein the base is equipped with rotation piece installation cavity on one side of sliding surface, the rotation assembly includes first rotation piece fixed in the sliding cavity and second rotation piece fixed in the rotation piece installation cavity, and the first rotation piece and second rotation piece are rotatably connected.

[0008] Further, the scheme discloses a rotating structure for a desktop range hood, wherein the first rotating part is provided with a first fixed groove on one side, a rotating part connecting end on the opposite side of the first fixed groove, and first fixed ends on the two sides of the first fixed groove respectively, the sliding cavity is provided with a second fixed groove matched with the first fixed ends respectively, a second fixed end matched with the first fixed groove, and a connecting part limiting end connected with the rotating part connecting end, and the first fixed groove and the second fixed end are arranged in T-shaped section.

[0009] Further, the scheme discloses a rotating structure for a desktop range hood, wherein the first rotating part is provided with a first fixed groove on one side, a rotating part connecting end on the opposite side of the first fixed groove, and first fixed ends on the two sides of the first fixed groove respectively, the sliding cavity is provided with a second fixed groove matched with the first fixed ends respectively, a second fixed end matched with the first fixed groove, and a connecting part limiting end connected with the rotating part connecting end, and the first fixed groove and the second fixed end are arranged in T-shaped section.

[0010] Further, the scheme discloses a rotating structure for a desktop range hood, wherein the first rotating part is provided with a first fixed groove on one side, a rotating part connecting end on the opposite side of the first fixed groove, and first fixed ends on the two sides of the first fixed groove respectively, the sliding cavity is provided with a second fixed groove matched with the first fixed ends respectively, a second fixed end matched with the first fixed groove, and a connecting part limiting end connected with the rotating part connecting end, and the first fixed groove and the second fixed end are arranged in T-shaped section.

[0011] Further, the scheme discloses a rotating structure for a desktop range hood, wherein the first rotating part is provided with a first fixed groove on one side, a rotating part connecting end on the opposite side of the first fixed groove, and first fixed ends on the two sides of the first fixed groove respectively, the sliding cavity is provided with a second fixed groove matched with the first fixed ends respectively, a second fixed end matched with the first fixed groove, and a connecting part limiting end connected with the rotating part connecting end, and the first fixed groove and the second fixed end are arranged in T-shaped section.

[0012] Further, the scheme discloses a rotating structure for a desktop range hood, wherein the first rotating part is provided with a first fixed groove on one side, a rotating part connecting end on the opposite side of the first fixed groove, and first fixed ends on the two sides of the first fixed groove respectively, the sliding cavity is provided with a second fixed groove matched with the first fixed ends respectively, a second fixed end matched with the first fixed groove, and a connecting part limiting end connected with the rotating part connecting end, and the first fixed groove and the second fixed end are arranged in T-shaped section.

[0013] Further, the scheme discloses a rotating structure for a desktop range hood, wherein the first rotating part is provided with a first fixed groove on one side, a rotating part connecting end on the opposite side of the first fixed groove, and first fixed ends on the two sides of the first fixed groove respectively, the sliding cavity is provided with a second fixed groove matched with the first fixed ends respectively, a second fixed end matched with the first fixed groove, and a connecting part limiting end connected with the rotating part connecting end, and the first fixed groove and the second fixed end are arranged in T-shaped section.

[0014] Further, the scheme discloses a rotating structure for a desktop range hood, wherein the first rotating part is provided with a first fixed groove on one side, a rotating part connecting end on the opposite side of the first fixed groove, and first fixed ends on the two sides of the first fixed groove respectively, the sliding cavity is provided with a second fixed groove matched with the first fixed ends respectively, a second fixed end matched with the first fixed groove, and a connecting part limiting end connected with the rotating part connecting end, and the first fixed groove and the second fixed end are arranged in T-shaped section.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model discloses a rotating structure for desktop range hood, including smoking assembly, base and the rotating component of connecting two parts, realize the flexible adjustment of smoking mouth position of smoking assembly, in addition, the sliding surface of cross section is arc or spherical is equipped with on the base close to smoking assembly one side, and smoking assembly sets up the sliding end of sliding along the sliding surface, realizes smoking assembly can be attached to the sliding surface relative base and rotates, thereby realizes the effect of pitching, not only makes smoking mouth can position adjustment according to the specific placement of cooking utensil and the change in the cooking process, thereby effectively solve the problem of traditional desktop range hood smoking mouth fixed, ensure that in different types of cooking activities can be timely extracted from oil fume and peculiar smell, improve the use convenience of user and kitchen air quality, also make smoking assembly and base realize seamless connection, avoid the oil fume suction from the connecting gap between smoking assembly and base, thereby convenient cleaning, also can prevent the situation of pinching finger when rotating smoking assembly for user, in addition, user need not frequently adjust the position of pot or change own standing position to adapt to fixed smoking mouth, further improve the cooking experience and safety of user.

[0017] The utility model will be further described below in connection with the drawings and specific embodiment. DRAWINGS

[0018] Figure 1 It is a rotating structure appearance schematic drawing for desktop range hood of the utility model.

[0019] Figure 2 It is an explosion schematic drawing for rotating structure of the utility model for desktop range hood.

[0020] Figure 3 It is a rotating structure section schematic drawing for desktop range hood of the utility model.

[0021] Figure 4 It is smoking assembly appearance schematic drawing for rotating structure for desktop range hood of the utility model.

[0022] Figure 5 It is smoking assembly I part enlarged schematic drawing for rotating structure for desktop range hood of the utility model.

[0023] Figure 6 It is base appearance schematic drawing for rotating structure for desktop range hood of the utility model.

[0024] Figure 7 It is base section schematic drawing for rotating structure for desktop range hood of the utility model.

[0025] Figure 8 It is rotating component appearance schematic drawing for rotating structure for desktop range hood of the utility model.

[0026] Figure 9 It is a rotating assembly appearance schematic view for the rotating structure of the desktop range hood of the utility model.

[0027] Figure 10 It is a rotating assembly explosion schematic view for the rotating structure of the desktop range hood of the utility model.

[0028] Figure 11 It is a desktop range hood appearance schematic view of the utility model. DETAILED DESCRIPTION

[0029] The embodiment of the utility model will be described in detail below with reference to the drawings.

[0030] Example one: as Figures 1-10 A rotating structure for a desktop range hood, comprising a range hood body 2, wherein the range hood body 2 comprises a smoke suction assembly 1, a base 3 located below the smoke suction assembly 1, and a rotating assembly 4 connecting the smoke suction assembly 1 and the base 3, the base 3 is provided with a sliding surface 31 on the side close to the smoke suction assembly 1, the sliding surface 31 is arc-shaped or spherical in cross section, the smoke suction assembly 1 is provided with a sliding end 17 that can slide relative to the sliding surface 31 and is attached to the sliding surface 31, the sliding end 17 is driven to slide along the sliding surface 31 by the rotating assembly 4, so that the smoke suction assembly 1 rotates relative to the base 3.

[0031] The utility model discloses a rotating assembly 4 comprising a smoke suction assembly 1, a base 3 and connecting the two parts, which realizes flexible adjustment of the position of the smoke suction port of the smoke suction assembly 1. In addition, the base 3 is provided with an arc-shaped or spherical sliding surface 31 on the side close to the smoke suction assembly 1, and the smoke suction assembly 1 is provided with a sliding end 17 that can slide along the sliding surface 31. The smoke suction assembly 1 can slide relative to the base 3 along the sliding surface 31, thereby realizing the effect of pitching. The smoke suction port can be adjusted in position according to the specific placement of the cooking utensil and the changes in the cooking process, thereby effectively solving the problem of fixed smoke suction port of the traditional desktop range hood, ensuring that the oil smoke and odor can be timely extracted during different types of cooking activities, improving the user's convenience and kitchen air quality, and realizing seamless connection between the smoke suction assembly 1 and the base 3, avoiding the suction of oil smoke from the connection gap between the smoke suction assembly 1 and the base 3, thereby facilitating cleaning and preventing the user from pinching fingers when rotating the smoke suction assembly 1. In addition, the user does not need to frequently adjust the position of the pot or change his standing position to adapt to the fixed smoke suction port, further improving the user's cooking experience and safety.

[0032] Specifically, the utility model discloses through rotating component 4, make smoking component 1 can realize flexible rotation and position adjustment, user can adjust the position of smoking mouth according to different cooking needs freely, ensure the best oil fume absorption effect, second, the setting of rotating component 4 simplifies the operation process of user, need not complex tool or step just can easily adjust the direction and height of smoking mouth, greatly improve the user experience, further, through setting the sliding surface 31 of cross section arc or spherical, and set the sliding end 17 of relative sliding with sliding surface 31 on smoking component 1, in the embodiment, the cross section arc of sliding surface 31 is set, ensure that smoking component 1 can along the arc trajectory of sliding surface 31 when adjusting position, so that smoking component 1 can realize the adjustment of certain angle, and improve the smoothness and stability when smoking component 1 rotates relative to base 3, avoid the shaking or instability phenomenon that can be caused due to position adjustment, further, this setting not only avoids the oil fume from the connecting gap of smoking component 1 and base 3 into the equipment interior, thereby increase the cleaning difficulty of user, also prevent the problem that user is accidentally pinched to hand when adjusting the pitch angle of smoking component 1 by the connecting gap of smoking component 1 and base 3, further, in some embodiments, in order to enhance the connection stability between smoking component 1 and base 3, a plurality of small recesses or protrusions can be set on sliding surface 31, these recesses or protrusions can form friction fit with the sliding end 17 on smoking component 1, when smoking component 1 moves along sliding surface 31, these recesses or protrusions provide additional friction, prevent smoking component 1 from sliding by itself under the action of no external force, further, in some embodiments, magnetic material can be used to enhance the connection strength between smoking component 1 and base 3, specifically, embedding magnetic component on sliding surface 31, and installing corresponding metal sheet on sliding end 17, when smoking component 1 is placed on base 3, magnetic component will generate attractive force, firmly fix smoking component 1 in the current position, thereby increase the stability and reliability of overall structure, at the same time, this setting will not affect the rotating function of smoking component 1, user can still easily adjust the position of smoking component 1 by exerting appropriate external force, further, in some embodiments, smoking component 1 not only can rotate relative to base 3 along one direction, but also can be adjusted by setting rotating component 4 into universal rotating structure to make smoking component 1 can be adjusted in three-dimensional space along the arc trajectory of sliding surface 31 on base 3, rotating component 4 can be knuckle bearing, further, in other some embodiments, the cross section of sliding surface 31 is spherical.

[0033] Embodiment two: further, as Figures 1-10The diagram shows a rotating structure for a desktop range hood, wherein the smoke extraction component 1 is provided with a sliding cavity 110 into which the base 3 extends, the sliding end 17 is located on the periphery of the opening of the sliding cavity 110 and abuts against the sliding surface 31, and the rotation center of the rotating component 4 coincides with the center of the cross-section of the sliding surface 31.

[0034] This embodiment includes features of Embodiment 1, but differs from Embodiment 1 in that, by providing a sliding cavity 110 for the base 3 to extend into the smoking assembly 1, the connection stability between the smoking assembly 1 and the base 3 is improved, allowing the smoking assembly 1 to be securely mounted on the base 3. Furthermore, the sliding end 17 is located on the periphery of the opening of the sliding cavity 110 and abuts against the sliding surface 31. This design, where the smoking assembly 1 slides in close contact with the sliding surface 31, achieves a seamless connection between the smoking assembly 1 and the base 3, preventing fumes from being drawn in through the gap between the smoking assembly 1 and the base 3. Furthermore, the fact that the rotation center of the rotating assembly 4 coincides with the center of the cross-section of the sliding surface 31 ensures that the smoking assembly 1 maintains optimal balance and stability during rotation, and also reduces additional stress and wear caused by eccentricity, thereby extending the service life of the device. Furthermore, this design facilitates smoother and more precise angle adjustments, allowing users to more conveniently adjust the position of the smoking assembly according to actual needs. The position and angle are adjusted to achieve better adjustment effect; further, in some embodiments, an elastic sealing ring can be provided around the opening of the sliding cavity 110. When the smoking component 1 is installed on the base 3, the sealing ring will be squeezed, thereby filling the small gap between the smoking component 1 and the base 3 and preventing oil fumes from being sucked in through these gaps. In addition, the sealing ring can also play a certain friction role, thereby better ensuring that the smoking component 1 and the base 3 remain in relative positions when the smoking component 1 is rotated to the required angle; further, in some embodiments, when the user needs to replace the base 3 according to the usage environment, multiple adjustable buckle components can be provided around the opening of the sliding cavity 110. The size and tightness of the opening of the sliding cavity 110 can be adjusted according to the size of the base 3 through the buckle device; further, in some embodiments, the buckle components can be spring-pressed. When the smoking component 1 is installed on the base 3, the spring will automatically adjust the position of the buckle to ensure that the smoking component 1 and the base 3 always maintain close contact.

[0035] Example 3: Further, such as Figures 1-10 The diagram shows a rotating structure for a desktop range hood, wherein the base 3 is provided with a rotating component mounting cavity 32 on one side of the sliding surface 31, and the rotating assembly 4 includes a first rotating component 41 fixed in the sliding cavity 110 and a second rotating component 42 fixed in the rotating component mounting cavity 32, wherein the first rotating component 41 and the second rotating component 42 are rotatably connected.

[0036] The embodiment includes the features of embodiment two, and is different from embodiment two in that the first rotating part 41 fixed in the sliding cavity 110 of the smoking assembly 1 and the second rotating part 42 fixed in the rotating part mounting cavity 32 of the base 3 are arranged, and the first rotating part 41 and the second rotating part 42 are rotatably connected, so as to realize the rotating function of the smoking assembly 1 relative to the base 3. This arrangement enables the smoking assembly 1 to rotate freely relative to the base 3, so as to realize the adjustment of the position of the smoking port. Specifically, when a user needs to adjust the position of the smoking port, the user only needs to push the smoking assembly 1 gently, and the smoking assembly 1 can move along the sliding surface 31 smoothly. Further, the damping structure is arranged between the first rotating part 41 and the second rotating part 42, so that the smoking assembly 1 can stop at the desired angle. Further, in some other embodiments, an oil fume sensor can be arranged at the smoking port, and the first rotating part 41 can be automatically rotated around the second rotating part 42 by combining with the motor, so as to realize the function of automatically adjusting the angle of the smoking port according to the oil fume concentration, and further improve the smoking efficiency. Further, in some embodiments, a wear-resistant coating layer can be arranged between the first rotating part 41 and the second rotating part 42, so as to increase the wear resistance of the first rotating part 41 and the second rotating part 42, thereby prolonging the service life of the equipment. In addition, the wear-resistant coating layer can also reduce the friction coefficient between the first rotating part 41 and the second rotating part 42, reduce the force required by the user when rotating the smoking assembly 1, and improve the operation experience of the user. Further, in some embodiments, a bearing can also be arranged between the first rotating part 41 and the second rotating part 42. The bearing can reduce the friction resistance when rotating, so that the smoking assembly 1 can rotate more smoothly.

[0037] In some embodiments, the first rotating part 41 and the second rotating part 42 are rotatably connected. Figures 1-10 As shown in FIG. 4, the first rotating part 41 is provided with a first fixed groove 411 located on one side thereof, a rotating part connecting end 412 located on the opposite side of the first fixed groove 411, and first fixed ends 413 located on both sides of the first fixed groove 411 respectively. The sliding cavity 110 is provided with second fixed grooves 1101 matched with the first fixed ends 413 respectively, second fixed ends 1102 matched with the first fixed groove 411, and connecting piece limiting ends 1103 connected with the rotating part connecting end 412. The first fixed groove 411 and the second fixed end 1102 are arranged in a T-shaped cross section.

[0038] The embodiment includes the features of the embodiment three, and is different from the embodiment three that the utility model discloses a first rotating part 41 is provided with a first fixed groove 411 on one side, a rotating part connecting end 412 on the opposite side of the first fixed groove 411 and a first fixed end 413 on both sides of the first fixed groove 411 respectively, which ensures that the first rotating part 41 can be inserted into the second fixed end 1102 in the sliding cavity 110 through the first fixed groove 411, and the first fixed end 413 is inserted into the second fixed groove 1101 in the sliding cavity 110, and the rotating part connecting end 412 is connected with the connecting piece limiting end 1103 in the sliding cavity 110, which not only fixes the first rotating part 41 in the sliding cavity 110, but also improves the connection strength between the smoking assembly 1 and the rotating assembly 4, making the whole rotating structure more stable and reliable, further, by setting the first fixed groove 411 and the second fixed end 1102 in the T-shaped cross section, the strength and rigidity of the connecting part are enhanced, preventing loosening or deformation during long-term use, further, this setting also facilitates the installation and disassembly of the rotating assembly 4, and facilitates the user to carry out daily maintenance and cleaning.

[0039] Embodiment five: further, as shown in Figures 1-10 A rotating structure for a desktop range hood, wherein the tangent direction of the cross section of the sliding surface 31 and the horizontal plane is gradually increased from the side close to the rotating part mounting cavity 32 to the outside, and the angle α changes in the range of 30°-80°.

[0040] The embodiment includes the features of the embodiment four, and is different from the embodiment four in that the angle α between the tangent direction of the cross section of the sliding surface 31 and the horizontal plane is gradually increased from 30° to 80° from the side close to the rotating part mounting cavity 32 to the outside, the stress conditions of the sliding end 17 in different areas of the smoking assembly 1 during rotation are fully considered, and specifically, when the user pushes the smoking assembly 1 forward to make it forwardly inclined, the sliding surface 31 contacted by the sliding end 17 close to the front end of the base 3 can form a large downward inclination of the smoking port due to the increase of the angle α, so that the smoking port is closer to the pot to quickly capture the oil fume diffused at a low altitude, and the rear end of the sliding end 17 is close to the rotating part mounting cavity 32, so that the sliding surface 31 contacted by the rear end of the sliding end 17 can provide better support for the smoking assembly 1 due to the small angle α, the support of the rear end of the smoking assembly 1 by the sliding surface 31 with the small angle α is equivalent to that the rear end of the sliding end 17 is hung on the sliding surface 31, which reduces the tendency of the smoking assembly 1 to continue to incline forward, so that the smoking assembly 1 is better maintained at the required angle, and the required force for the rotating assembly 4 to maintain the relative position of the smoking assembly 1 and the base 3 is reduced; further, if the angle α is less than 30°, the inclination of the sliding surface 31 is not enough, which will cause that the rear end of the sliding end 17 cannot be effectively hung on the sliding surface 31 during the rotation of the smoking assembly 1, so that the rear end of the smoking assembly 1 lacks effective support, especially when a large angle of inclination is required, the smoking assembly 1 may be unstable and prone to shaking, on the contrary, if the angle α is greater than 80°, although a larger downward inclination of the smoking assembly 1 can be achieved, the large inclination angle will make the smoking assembly 1 unstable when close to the vertical position, increase the risk of accidental overturning, and further affect the safety and reliability of use.

[0041] Embodiment six: further, as shown in Figures 1-10 A rotating structure for a desktop range hood, wherein the first rotating part 41 is provided with a first extension end 414 close to the second rotating part 42, the second rotating part 42 is provided with a second extension end 421 close to the first rotating part 41, the first extension end 414 is provided with a protruding friction rotating part 4141, and the second extension end 421 is provided with a friction rotating hole 4211 for the friction rotating part 4141 to extend into and rotate.

[0042] The embodiment includes the features of embodiment five, and is different from embodiment five in that the cooperation of the friction rotating part 4141 and the friction rotating hole 4211 enables the first rotating part 41 to stay at the desired angle relative to the second rotating part 42, thereby realizing the positioning of the smoking assembly 1 at different angles; further, in some embodiments, the friction force between the first rotating part 41 and the second rotating part 42 ensures that the first rotating part 41 can stably stay at any angle; further, in some embodiments, by setting a spring pre-tightening device in the second rotating part 42, the pressure of the spring is used to adjust the pressure exerted by the friction rotating hole 4211 on the friction rotating part 4141, thereby adjusting the friction force, ensuring that the first rotating part 41 can stably stay at any angle; further, in some embodiments, one or more permanent magnets are arranged on the first extension end 414, and electromagnets with adjustable strength are arranged at the corresponding positions of the second extension end 421, when the smoking assembly 1 is adjusted to the corresponding position, by adjusting the current size of the electromagnet, the magnetic field strength is changed, thereby controlling the attraction or repulsion force on the permanent magnet, so that the first rotating part 41 can stably stay at a specific angle and can easily switch between different angles; further, in some embodiments, a set of matching gears and racks are arranged between the first extension end 414 and the second extension end 421, when the user adjusts the smoking assembly 1 to the desired angle, the pinion can be engaged with the rack by manual or electric mode, thereby locking the current angle, in addition, in order to facilitate user operation, a locking button or knob can be added to the device, simplifying the locking and unlocking process; further, in some embodiments, a hydraulic damper is installed between the first rotating part 41 and the second rotating part 42, when the first rotating part 41 rotates relative to the second rotating part 42, the hydraulic oil will provide appropriate resistance, prevent rapid rotation and help maintain the selected angle, in addition, by adjusting the viscosity of the hydraulic oil or the pressure inside the damper, the required resistance level can be accurately controlled, ensuring the stability of the smoking assembly 1 at various angles; further, in some embodiments, the first extension end 414 and the second extension end 421 are circular in cross-section, the first extension end 414 is provided with a continuous rack arranged in the circumferential direction on the side close to the second extension end 421, and the second extension end 421 is also provided with a corresponding rack on the side close to the first extension end 414, when the first rotating part 41 rotates, the rack on the first extension end 414 and the rack of the second extension end 421 are engaged with each other to lock the current angle.

[0043] Embodiment seven: further, as Figures 1-10As shown in a rotating structure for a desktop range hood, wherein the second rotating part 42 is provided with a first limiting end 422 protruding from the second extending end 421, and a second limiting end 423 located away from the first limiting end 422, and the first limiting end 422 and the second limiting end 423 are matched with the first rotating part 41 respectively to limit the rotating angle of the first rotating part 41.

[0044] The embodiment includes the features of embodiment six, and is different from embodiment six in that the first limiting end 422 and the second limiting end 423 are matched with the first rotating part 41 respectively, so as to limit the rotating angle of the first rotating part 41. This setting not only improves the safety and stability of the equipment, but also ensures that the smoking assembly 1 can be flexibly adjusted within the preset angle range. Specifically, the functions of the first limiting end 422 and the second limiting end 423 are to prevent the smoking assembly from being damaged or accidentally separated from the base 3 due to excessive rotation, and also to avoid the risks caused by user misoperation. Further, in some embodiments, in order to further enhance the function of the limiting end, adjustable limiting screws can be arranged on the first limiting end 422 and the second limiting end 423. Users can adjust the extension length of the limiting screws according to actual needs, so as to change the rotating range of the first rotating part 41. Further, in some embodiments, elastic bumpers can also be arranged on the first limiting end and the second limiting end. The elastic bumpers can be made of elastic materials such as rubber or polyurethane. When the first rotating part 41 approaches the limiting end, the elastic bumpers will be extruded, thereby providing a certain buffering effect and reducing the hard collision between the first rotating part 41 and the limiting end.

[0045] Embodiment eight: further, as Figures 1-10 shown in a rotating structure for a desktop range hood, wherein the distance L1 from the axis in the smoking assembly 1 to the center of the friction rotating part 4141 is 40-60mm.

[0046] The embodiment includes the features of embodiment seven, and is different from embodiment seven in that, in the utility model, the distance L1 from the axis of the smoking assembly 1 to the center of the friction rotating part 4141 is 40-60 mm, which helps to optimize the overall structure of the smoking assembly 1 and ensure its stability and flexibility at different angles. Specifically, when the smoking assembly 1 is adjusted or in a working state, the center of gravity of the smoking assembly 1 will change with the change of the angle. By reasonably setting the distance L1, a more uniform torque distribution can be achieved at different angles, avoiding instability or difficulty in operation due to excessive torque. Under normal conditions, the smoking assembly 1 will be in a forward-leaning state. When it is necessary to continue to move the smoking assembly 1 forward, the center of gravity of the smoking assembly 1 moves forward. By setting the distance L1 from the axis of the smoking assembly 1 to the center of the friction rotating part 4141 to be between 40-60 mm, the torque is kept within a reasonable range, and the problem of the range hood tipping over due to the excessive weight of the front end of the smoking assembly 1 is avoided. At the same time, the friction rotating part 4141 is closer to the axis of the smoking assembly 1, which helps to reduce the initial torque required by the user when operating, so that the user can easily make preliminary adjustments. Further, if L1 is less than 40 mm, the smoking assembly 1 will be too close to the base 3, and the user will need a lot of force to rotate the smoking assembly 1, thereby affecting its rotating flexibility. If L1 is greater than 60 mm, the center of gravity of the smoking assembly 1 will be too high, reducing stability and increasing the risk of the range hood tipping over. By setting the distance L1 from the axis of the smoking assembly 1 to the center of the friction rotating part 4141 to be within the range of 40-60 mm, the overall performance and user experience of the desktop range hood can be effectively improved. Further, in some embodiments, an adjustable support rod is added between the smoking assembly 1 and the base 3, so that the distance from the axis of the smoking assembly 1 to the center of the friction rotating part 4141 can be adjusted, realizing the telescopic setting of the smoking assembly 1, but ensuring that the adjustment range is between 40-60 mm.

[0047] In some embodiments, the distance L1 from the axis of the smoking assembly 1 to the center of the friction rotating part 4141 is 40-60 mm. Figures 1-10 As shown in FIG. 9, the rotating structure for a desktop range hood further includes a filter screen 19 fixed to the smoke inlet, and an oil collection channel 120 located on one side of the smoke inlet and used to collect oil and water residues left by the filter screen 19. The rotating angle β of the axis of the smoking assembly 1 to the horizontal plane is in the range of 5°-50°.

[0048] The embodiment includes the features of embodiment eight, and is different from embodiment eight in that, in the utility model, the rotation angle β of the axis in the smoke suction assembly 1 to the horizontal plane ranges from 5° to 50°. This setting helps to optimize the position of the smoke suction assembly 1, so that it better adapts to different cooking needs and kitchen layouts. Specifically, the setting of the β angle directly affects the specific placement position of the smoke suction port relative to the pot, thereby affecting the oil fume absorption effect. When the β angle is set between 5° and 50°, the smoke suction assembly 1 can achieve the best oil fume absorption effect, making the smoke suction port closer to the surface of the pot, improving the smoke suction efficiency, and making the smoke suction port better cover the rising oil fume, ensuring comprehensive absorption. Further, this angle setting can also ensure that the oil collection channel 120 can collect the oil and water collection from the filter screen 19 at different pitch angles. Further, if the β angle is less than 5°, firstly, it will cause the smoke suction port to be too close to the pot, which is easy to be affected by the heat source, increasing the risk of overheating of the equipment, and even possibly damaging the material and structure of the smoke suction assembly 1. Secondly, the smoke suction port being too close to the pot can also cause the local suction to be too large, so that part of the oil fume cannot be effectively extracted, but instead diffuses into the surrounding environment, reducing the overall smoke suction efficiency. In addition, it can also cause the smoke suction assembly 1 to collide with the pot or other kitchen utensils in actual use, affecting the user's operation experience. Further, if the β angle is greater than 50°, firstly, it will cause the smoke suction port to be far away from the pot, which cannot effectively capture the rising oil fume. Secondly, it will also cause the overall center of gravity of the smoke suction assembly 1 to deviate, increasing the risk of equipment tipping or loosening. In addition, it will also reduce the rotatable angle range of the smoke suction assembly 1, causing the rotation range of the smoke suction assembly 1 to be limited, affecting its flexibility, thereby reducing the user's operation convenience.

[0049] Embodiment ten: this embodiment includes all the features of embodiments one to nine, and is different in that, in this embodiment, the distance L1 from the axis in the smoke suction assembly 1 to the center of the friction rotating part 4141 is 60 mm.

[0050] Embodiment eleven: this embodiment includes all the features of embodiments one to nine, and is different in that, in this embodiment, the distance L1 from the axis in the smoke suction assembly 1 to the center of the friction rotating part 4141 is 55 mm.

[0051] Embodiment twelve: further, as shown in Figures 1-11 the desktop range hood, which includes a rotating structure for a desktop range hood.

[0052] The embodiment includes all the features of embodiments one to twelve, and the difference is that the rotating structure for the desktop range hood is integrated into the desktop range hood, thereby improving the functionality and user experience of the desktop range hood, specifically, the rotating structure includes the smoke suction assembly 1, the base 3, and the rotating assembly 4 connecting the two parts, through the cooperative work of these components, the flexible adjustment of the position of the smoke suction port on the smoke suction assembly 1 is realized; further, the base 3 is provided with a sliding surface 31 on the side close to the smoke suction assembly 1, and the smoke suction assembly 1 is provided with a sliding end 17 that can slide relative to the sliding surface 31, through the rotating assembly 4 driving the sliding end 17 to slide along the sliding surface 31, the smoke suction assembly 1 can be adjusted in position according to the specific placement of the cooking utensils and the changes in the cooking process; further, the use of the rotating structure with the desktop range hood solves the problem of the fixed smoke suction port of the traditional desktop range hood, so that the smoke suction port can be flexibly adjusted to adapt to different types of cooking activities, this setting not only improves the smoke suction effect of the desktop range hood, but also reduces the user's frequent adjustment of the position of the pot, further improves the user's operation convenience and comfort, secondly, the rotating assembly 4 ensures that the smoke suction assembly 1 can be stably stopped at any angle, avoiding the loosening problem caused by external force or long-term use; further, through the seamless connection of the smoke suction assembly 1 and the base 3, it is also convenient for the user to clean the desktop range hood and avoid the phenomenon of pinching the hand.

[0053] The above only further illustrates the technical content of the utility model with examples, so that the reader can understand more easily, but does not represent that the implementation mode of the utility model is limited to this, any technical extension or re-creation made according to the utility model is protected by the utility model. The protection scope of the utility model is subject to the claims.

Claims

1. A rotating structure for a table top range hood, comprising a range hood body (2), characterized in that: The oil fume exhauster main body (2) comprises a smoke suction assembly (1), a base (3) below the smoke suction assembly (1), and a rotating assembly (4) connecting the smoke suction assembly (1) and the base (3), the base (3) is provided with a sliding surface (31) near one side of the smoke suction assembly (1), the sliding surface (31) is provided in an arc or spherical shape in cross section, the smoke suction assembly (1) is provided with a sliding end (17) abutting the sliding surface (31) and capable of sliding relative to the sliding surface (31), the sliding end (17) is driven by the rotating assembly (4) to slide along the sliding surface (31), so that the smoke suction assembly (1) rotates relative to the base (3).

2. A swivel structure for a table top extractor hood according to claim 1, characterised in that: The smoke suction assembly (1) is provided with a sliding cavity (110) into which the base (3) extends, the sliding end (17) is arranged at the cavity opening side of the sliding cavity (110) and abuts against the sliding surface (31), and the rotating center of the rotating assembly (4) coincides with the center of the cross section of the sliding surface (31).

3. A swivel structure for a table top extractor hood according to claim 2, characterised in that: The base (3) is provided with a rotating part mounting cavity (32) on one side of the sliding surface (31), the rotating assembly (4) comprises a first rotating part (41) fixed in the sliding cavity (110) and a second rotating part (42) fixed in the rotating part mounting cavity (32), and the first rotating part (41) and the second rotating part (42) are rotationally connected.

4. A swivel structure for a table-top extractor hood according to claim 3, characterised in that: The first rotating part (41) is provided with a first fixing groove (411) on one side thereof, a rotating part connecting end (412) on the opposite side of the first fixing groove (411), and first fixing ends (413) respectively on two sides of the first fixing groove (411), the sliding cavity (110) is provided with second fixing grooves (1101) respectively matched with the first fixing ends (413), a second fixing end (1102) matched with the first fixing groove (411), and a connecting part limiting end (1103) connected with the rotating part connecting end (412), and the first fixing groove (411) and the second fixing end (1102) are provided in a T shape in cross section.

5. A swivel structure for a table-top extractor hood according to claim 3, characterized in that: The tangent direction of the cross section of the sliding surface (31) gradually increases from the side near the rotating part mounting cavity (32) to the outside, and the angle α between the tangent direction and the horizontal plane ranges from 30° to 80°.

6. A swivel structure for a table-top range hood according to claim 3, wherein: The first rotating part (41) is provided with a first extension end (414) on the side near the second rotating part (42), the second rotating part (42) is provided with a second extension end (421) on the side near the first rotating part (41), the first extension end (414) is provided with a friction rotating part (4141) extending out, and the second extension end (421) is provided with a friction rotating hole (4211) into which the friction rotating part (4141) extends and rotates.

7. A swivel structure for a table-top extractor hood according to claim 6, characterized in that: The second rotating member (42) is provided with a first limiting end (422) protruding from the second extending end (421), and a second limiting end (423) located on the side away from the first limiting end (422), and the first limiting end (422) and the second limiting end (423) are matched with the first rotating member (41) respectively to limit the rotating angle of the first rotating member (41).

8. A swivel structure for a table-top extractor hood according to claim 6, characterized in that: The distance L1 from the axis of the smoking assembly (1) to the center of the friction rotating part (4141) is 40-60mm.

9. A swivel structure for a table-top range hood according to claim 1, wherein: The smoking assembly (1) further comprises a filter screen (19) and an oil collecting channel (120) for collecting the oil and water collected by the filter screen (19), and the rotating angle β of the axis of the smoking assembly (1) with the horizontal plane ranges from 5° to 50°.

10. A table top extractor characterised in that: A rotating structure for a table top range hood comprising a rotating structure according to any one of claims 1-9.

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