CN113153797B - Hand regulating mark swing angle regulator for electric fan - Google Patents
Hand regulating mark swing angle regulator for electric fan Download PDFInfo
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- CN113153797B CN113153797B CN202110492514.3A CN202110492514A CN113153797B CN 113153797 B CN113153797 B CN 113153797B CN 202110492514 A CN202110492514 A CN 202110492514A CN 113153797 B CN113153797 B CN 113153797B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
- F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A manual regulation type identification swing angle adjusting device of an electric fan comprises a plastic identification disc, a plastic angle adjusting knob and a sliding chute-sliding block crank adjusting mechanism, wherein a second graded concave-convex body-positioning convex block plastic clamping positioning mechanism is arranged between the plastic identification disc and the plastic angle adjusting knob, so that the problem that no positioning mechanism easily generates deviation in the whole process between the identification disc and the angle adjusting knob is solved; the radial sliding fit device is arranged between the plastic angle adjusting knob and the plastic marking disc, a rigid pair marking mechanism which is concentric with a supporting point and is in radial sliding fit with the plastic angle adjusting knob is established between the plastic angle adjusting knob and the plastic marking disc, the crank push-pull force and the angle adjusting knob plastic deformation reaction force can be effectively blocked, the phenomenon of driven free of the plastic angle adjusting knob is eliminated, and therefore the electric fan manual adjusting type marking swing angle adjusting device which can accurately adjust angles in an equivalent manner according to the marking disc marks and accords with the secondary relay installation specification of an electric fan in a continuous rotation state is formed.
Description
Technical Field
The invention relates to an electric fan device, in particular to a manual regulation type identification swing angle regulation device for an electric fan.
Background
The electric fan with adjustable swing angle is characterized by that it mainly utilizes the change of crank length in crank rocker mechanism to implement regulation of swing angle, and in the Chinese patent application No. 202110283371.5 in the prior art, it shows a manual regulation type mark swing angle regulation device of electric fan, and includes a variable-length crank mechanism formed from spacing slide groove-slide block rack crank and central shaft gear which are meshed together, and the external wall of the slide block is equipped with stepped concave-convex body, and in the first internal cavity of the large gear a spring-fastener device is placed, and passed through the notch of first spacing slide groove and is elastically tightly contacted with stepped concave-convex body, and the external surface of hollow shaft is extended from motor cover and is equipped with marking disk with spacing groove, and when the central shaft is extended from motor cover and is equipped with angle-regulating knob with spacing block, and when the angle is regulated, the user can utilize the bidirectional connecting block-central shaft-central gear-rack mesh to make transmission to drive slide block rack crank in first spacing slide block, and make correspondent displacement according to the setting parameters of stepped concave-convex body of external wall of the motor cover, and release angle regulation knob with equal amount, and the swing angle is synchronously and the swing angle can be regulated by means of spring, so that the user can obtain a set swing angle regulation type mark. However, since the slider rack crank is in elastic tight contact with the spring-fastener through the stepped convexo-concave body, the slider rack crank is a flexible structure, and the stepped convexo-concave body of the slider generates flexible displacement under the action of back-and-forth push-pull force of the crank in the oscillating process of the electric fan, and the flexible displacement is transmitted through multi-stage mechanical linkage of the slider rack-central gear-central shaft-bidirectional connecting block-angle adjusting knob, the reverse angle adjusting knob is driven to move freely to a position point and deviates from the central line of the established mark of the mark disc to generate the phenomenon that the crank sampling value is inconsistent with the established mark value of the mark disc, and the individual offset is even close to the intersection region of adjacent mark values to cause the inaccurate display of the sampling value, thereby affecting the identification accuracy of a user during operation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a manual-adjustment type mark swing angle adjusting device of an electric fan, which can prevent the reverse free deviation of the alignment point of an angle adjusting knob from a set mark of a mark disc in the operation and swing angle adjusting process, and a user can accurately and quickly adjust the angle according to the clear display of the alignment mark disc mark of the angle adjusting knob.
In order to solve the technical problem, the invention provides a manual regulation type identification swing angle adjusting device of an electric fan, which comprises a plastic identification disc, a plastic angle adjusting knob, a plastic gear box shell, a shell cover and a second-stage speed reducing mechanism, wherein the second-stage speed reducing mechanism is provided with a worm gear and a large gear, the large gear is provided with an inner cavity, the inner cavity is provided with a crank adjusting mechanism consisting of a limiting chute-sliding block, a rack, a crank and a central gear, the outer wall of the sliding block is provided with a first grading concave-convex body, the inner cavity of the large gear is provided with a spring-ball device, a ball of the spring-ball device passes through a gap of the limiting chute and is in elastic tight contact with the first grading concave-convex body, the plastic identification disc is provided with each grade identification angle displacement angle of a grading identification, the grade identification angle displacement angle is equal to each tooth angle displacement angle of the central gear, the hollow shaft, the central shaft and the central gear are arranged at the lower end of the central shaft, the hollow shaft is arranged outside the central shaft, a group of plastic mark disc relay connecting devices with unique positioning connection are arranged between the hollow shaft and the mark disc, a group of plastic angle adjusting knob relay connecting devices with unique positioning connection are arranged between the central shaft and the plastic angle adjusting knobs, the plastic angle adjusting knob relay connecting devices are formed by two-way connecting blocks fixedly arranged at the upper end of the central shaft by screws, the lower end of a big gear is provided with a limit cover, a crank penetrates through the limit cover to the outside of the big gear, a limit groove-limit block mechanism is arranged between the plastic mark disc and the plastic angle adjusting knobs, a second graded concave-convex body-positioning convex block plastic clamping and positioning mechanism is arranged between the plastic mark disc and the plastic angle adjusting knobs, and a radial sliding matching device is arranged between the plastic mark disc and the plastic angle adjusting knobs.
The plastic clamping and positioning mechanism with the second stepped convexo-concave body and the positioning lug has the technological scheme that the plastic mark disc is provided with the second stepped convexo-concave body homogeneously, the angular displacement angle of the second stepped convexo-concave body is equal to that of the plastic mark disc, and the plastic angle regulating knob has circular positioning lug clamped into the second stepped convexo-concave body to form plastic clamping and positioning fit.
The plastic angle adjusting knob is provided with a hollow frame, the outer edge of the hollow frame is provided with an arc-shaped positioning lug, and the arc-shaped positioning lug is clamped into the second graded concave-convex body to form plastic clamping, positioning and matching.
The plastic clamping special positioning matching mechanism with the established grading mark equivalent positioning structure is formed by adding a group of second grading concave-convex body-positioning convex block plastic clamping positioning mechanisms between the plastic mark disc and the plastic angle adjusting knob, and the angular displacement angle of each grade of concave-convex body of the second grading concave-convex body is correspondingly equal to the angular displacement angle of each grade of mark with the grading mark of the plastic mark disc, so that the positioning convex block can be clamped and positioned in the second grading concave-convex body through plastic deformation clamping, and the plastic clamping special positioning matching mechanism with the established grading mark equivalent positioning structure is formed.
In a preferred configuration of the present invention, the positioning projections are a pair of positioning projections symmetrically provided along a circumferential direction of the plastic reclining knob. By adopting the symmetrically-arranged positioning lug structure, when the plastic angle adjusting knob is twisted, the generated concentric winding moment is more symmetrically balanced, and the condition that the plastic angle adjusting knob inclines reversely due to the single-side plastic deformation component force of the single-side positioning lug in the angle adjusting process is avoided; after the angle modulation is finished, the symmetrically arranged positioning lugs are clamped and positioned in the second grading concave-convex bodies which are uniformly distributed, and the generated bidirectional clamping torque obtains better clamping and positioning effects compared with a unilateral positioning lug structure, and the problem of plastic angle modulation knob deviation is solved more effectively.
As a technical scheme of the radial sliding fit device, a shaft sleeve is arranged in an inner hole of the plastic identification disc, and the radial outer wall of the shaft body of the plastic angle adjusting knob is inserted into the shaft sleeve of the plastic identification disc to form the radial sliding fit device.
As another technical scheme of the radial sliding fit device, a plurality of first radial protruding strips are arranged on the inner hole wall body of the plastic identification disc, and the radial outer wall of the shaft body of the plastic angle adjusting knob is inserted into the first radial protruding strips of the inner hole wall body of the plastic identification disc to form the radial sliding fit device.
In another embodiment of the above radial sliding engagement device, a sleeve is disposed in the inner hole of the plastic identification disc, the outer wall of the plastic angle adjustment knob shaft body is provided with a second radial protrusion, and the second radial protrusion of the outer wall of the plastic angle adjustment knob shaft body is inserted into the sleeve of the plastic identification disc to form a radial sliding engagement device.
The radial sliding fit device is additionally arranged between the plastic marking disc and the plastic angle adjusting knob, so that the problem that the plastic marking disc in the prior art continuously rotates above the hollow shaft by virtue of the insertion of the relay device is solved, the plastic angle adjusting knob rotates above the bidirectional connecting block by virtue of the insertion of the relay device, a non-contact type dissociative flexible pair marking mechanism without a common fulcrum is formed, a rigid contact type pair marking mechanism which is sleeved with a concentric fulcrum support and is in radial sliding fit is established between the plastic marking disc and the plastic angle adjusting knob, and therefore, along with the continuous rotation of the bull gear, the hollow shaft and the plastic marking disc in the operation, the offset influence of reciprocating push-pull force in the operation can be reliably blocked, and the counter-acting force of plastic deformation generated in the moving process of a positioning lug of the plastic angle adjusting knob in angle adjustment can be reliably resisted, so that a good effect on eliminating the driven offset of the plastic angle adjusting knob is obtained structurally, and therefore, the manual type marking swing angle adjusting device of the electric fan, which can accurately and quickly adjust the angle without offset according to the clear display of the identification disc in the plastic marking disc in the continuous rotation in the operation and the swing angle adjustment process, is formed.
The plastic clamping and positioning mechanism and the radial sliding matching device of the second grading concave-convex body-positioning convex block are additionally arranged between the plastic marking disc and the plastic angle adjusting knob, the structure is optimized and compact, the assembly is convenient, the non-offset clear positioning of the plastic marking disc and the plastic angle adjusting knob which continuously rotate in the operation process is ensured, the secondary relay installation efficiency of the plastic marking disc and the plastic angle adjusting knob in the production line is not influenced, and the plastic marking disc and the plastic angle adjusting knob completely accord with the installation operation rules in the industry of electric fans.
Drawings
Three embodiments of the present invention are further described below with reference to the accompanying drawings:
FIG. 1 is a general external view of a manual adjustment type identification swing angle adjusting device of an electric fan, which is provided with a plastic clamping and positioning mechanism of a second grading concave-convex body-positioning convex block and a radial sliding matching device of the first embodiment of the invention between a plastic identification disc and a plastic angle adjusting knob;
FIG. 2 is a longitudinal cross-sectional view of the embodiment of FIG. 1;
FIG. 3 is an exploded view of the bevel gear box assembly, plastic flag and plastic bevel knob of the embodiment of FIG. 1;
FIG. 4 is an exploded top view of the recliner member of the embodiment of FIG. 1;
FIG. 5 is an exploded bottom view of the recliner member of the embodiment of FIG. 1;
FIG. 6 is an overall assembled front view of the embodiment of FIG. 1;
FIG. 7 is a cross-sectional view taken along line D-D of FIG. 6;
FIG. 8 is a cross-sectional view taken along line F-F of FIG. 6;
FIG. 9 is an exploded view of the plastic label disk, plastic recliner knob, and variable angle gear box assembly incorporating the second stepped asperity-positioning projection plastic retaining and positioning mechanism and radial sliding engagement means in accordance with the second embodiment of the present invention;
FIG. 10 is an exploded top view of the recliner member of the embodiment of FIG. 9;
FIG. 11 is an overall assembled front view of the embodiment of FIG. 9;
FIG. 12 is a cross-sectional view taken along line G-G of FIG. 11;
FIG. 13 is an exploded view of the plastic label disk, plastic recliner knob and angle-change gear box assembly incorporating the second stepped asperity-positioning projection plastic retaining and positioning mechanism and radial sliding engagement device in accordance with the third embodiment of the present invention;
FIG. 14 is an exploded top view of the recliner member of the embodiment of FIG. 13;
FIG. 15 is an overall assembled front view of the embodiment of FIG. 13;
fig. 16 is a sectional view taken along line H-H in fig. 15.
Description of the reference symbols:
1. a plastic label disk; 2. a plastic angle adjustment knob; 3. a plastic gearbox housing; 4. a shell cover; 5. a worm gear; 6. a bull gear; 7. an inner cavity; 8. a limiting chute; 9. a slider; 10. a rack; 11. a crank; 12. a sun gear; 13. a first graded asperity; 14. a spring; 15. a ball bearing; 16. a hollow shaft; 17. a central shaft; 18. a bidirectional connecting block; 19. a screw; 20. a limiting cover; 21. a limiting groove; 22. a limiting block; 23. a second graded asperity; 24. positioning the bump; 25. a hollow frame; 26. a first radial rib; 27. a shaft body; 28. a shaft sleeve; 29. a second radial rib.
Detailed Description
Three embodiments of the present invention are described in detail below with reference to fig. 1 to 16.
The invention relates to a manual regulation type identification swing angle regulation device for an electric fan.
Other configurations and operations of the electric fan are known to those skilled in the art and will not be described in detail herein, and the structure of the swing angle adjusting device for the electric fan with the hand-adjusting sign will be described in detail below.
Referring to fig. 1 to 8, the first embodiment of the manual regulation type identification swing angle adjusting device of the electric fan comprises a plastic identification disc 1, a plastic angle adjusting knob 2, a plastic gear box shell 3, a shell cover 4 and a second stage speed reducing mechanism, wherein the second stage speed reducing mechanism is provided with a worm gear 5 and a large gear 6, the large gear 6 is provided with an inner cavity 7, the inner cavity 7 is provided with a crank adjusting mechanism consisting of a limiting chute 8-a sliding block 9, a rack 10, a crank 11 and a central gear 12, the outer wall of the sliding block 9 is provided with a first grading concave-convex body 13, the inner cavity 7 of the large gear 6 is provided with a spring 14-ball 15 device, a ball 15 of the spring 14-ball 15 device passes through a gap of the limiting chute 8 to be in elastic tight contact with the first grading concave-convex body 13, the plastic identification disc 1 is provided with each grade identification angular displacement angle of grading identification, the angular displacement angle is equal to each tooth angular displacement angle of the central gear 12, and a hollow shaft 16, a central shaft 17, a central gear 12 is arranged at the lower end of the central shaft 17, a hollow shaft 16 is arranged at the outer side of the central shaft 17, a group of plastic identification disc 1 relay connecting devices with unique positioning connection are arranged between the hollow shaft 16 and the plastic identification disc 1, a group of plastic angle adjusting knob 2 relay connecting devices with unique positioning connection are arranged between the central shaft 17 and the plastic angle adjusting knob 2, the plastic angle adjusting knob 2 relay connecting devices are formed by fixedly arranging a bidirectional connecting block 18 at the upper end of the central shaft 17 by a beating screw 19, the lower end of a bull gear 6 is provided with a limit cover 20, a crank 11 passes through the limit cover 20 to the outside of the bull gear 6, a limit groove 21-limit block 22 mechanism is arranged between the plastic identification disc 1 and the plastic angle adjusting knob 2, a second grading concave-convex body 23-a positioning convex body 24 plastic clamping positioning mechanism is arranged between the plastic identification disc 1 and the plastic angle adjusting knob 2, the second grading concave-convex body 23-positioning lug 24 plastic clamping positioning mechanism is characterized in that the plastic identification disc 1 is uniformly provided with the second grading concave-convex body 23, the angular displacement angle of each grade of concave-convex body of the second grading concave-convex body 23 is correspondingly equal to the angular displacement angle of each grade of identification with grading identification arranged on the plastic identification disc 1, the plastic angle adjusting knob 2 is provided with an arc-shaped positioning lug 24, and the arc-shaped positioning lug 24 is clamped into the second grading concave-convex body 23 to be in plastic clamping positioning fit; a radial sliding fit device is arranged between the plastic identification disc 1 and the plastic angle adjusting knob 2, the radial sliding fit device is characterized in that a plurality of first radial protruding strips 26 are arranged on the inner hole wall body of the plastic identification disc 1, and the radial outer wall of the shaft body 27 of the plastic angle adjusting knob 2 is inserted into the first radial protruding strips 26 on the inner hole wall body of the plastic identification disc 1 to form the radial sliding fit device.
A set of second graded concave-convex body 23-positioning lug 24 plastic clamping positioning mechanism is additionally arranged between the plastic mark disc 1 and the plastic angle modulation knob 2, the angular displacement angle of each grade of concave-convex body of the second graded concave-convex body 23 is correspondingly equal to the angular displacement angle of each grade of mark with a graded mark on the plastic mark disc 1, the positioning lug 24 can be clamped and positioned in the second graded concave-convex body 23 through plastic deformation, so that a set of plastic clamping positioning matching mechanism with a set graded mark equivalent positioning structure is formed, the problem that deviation is easy to generate because no positioning mechanism exists in the whole process of each grade mark between the angle modulation knob and the mark disc is solved, when the angle modulation is carried out, a user twists the plastic angle modulation knob 2 and the positioning lug 24, and moves the plastic angle modulation knob to the second concave-convex body 23 corresponding to a required swing angle mark according to the step-by-step plastic deformation displacement of the mark of the plastic mark disc 1 to form plastic positioning matching, the angle modulation knob is finished, the plastic angle modulation knob 2 and the plastic mark disc 1 are positioned on the second graded concave-convex body 23 corresponding to the set value of the plastic mark disc 1, and the reverse direction mark displacement caused by the clamp force of the crank handle 11 is eliminated. Meanwhile, a radial sliding fit device is additionally arranged between the plastic identification disc 1 and the plastic angle adjusting knob 2, so that the problem that the plastic identification disc 1 in the prior art continuously rotates by virtue of a relay device inserted above the hollow shaft 16 and the plastic angle adjusting knob 2 rotates by virtue of a relay device inserted above the bidirectional connecting block 18 is solved, a non-contact type free flexible pair identification mechanism without a common fulcrum is formed, a rigid contact type pair identification mechanism which is sleeved with a concentric fulcrum support and is in radial sliding fit is established between the plastic identification disc 1 and the plastic angle adjusting knob 1, and therefore, along with the continuous rotation of the large gear 6-the hollow shaft 16-the plastic identification disc 1 in the operation, the deviation influence of reciprocating push-pull force in the operation of the crank 11 can be reliably blocked, the counterforce of plastic deformation generated in the moving process of the positioning lug 24 of the plastic angle adjusting knob 2 in the angle adjusting process can be reliably resisted, a good effect of eliminating the driven deviation of the plastic angle adjusting knob 2 in the structure is obtained, and the electric fan hand-adjusted type identification swing angle adjusting device which can clearly display the identification disc 1 in the continuous rotation state and can accurately and quickly adjust the angle without error in the operation and swing angle.
Referring to fig. 4 and 7, the positioning protrusions 24 are a pair of circular arc positioning protrusions 24 symmetrically arranged along the circumference of the plastic recliner knob 2. By adopting the structure of symmetrically arranging the arc-shaped positioning lugs 24, when the plastic angle adjusting knob 2 is twisted by angle adjustment, the generated concentric orbiting torque is more symmetrically balanced, and the plastic angle adjusting knob 2 is prevented from inclining in the opposite direction due to single-side plastic deformation component force in the angle adjusting process of the single-side arc-shaped positioning lugs 24; after the angle adjustment is finished, the symmetrically arranged arc-shaped positioning lugs 24 are clamped and positioned in the uniformly arranged second grading concave-convex bodies 23 in a two-way manner, and the generated two-way clamping torque has better clamping and positioning effects than the structure of the single-side arc-shaped positioning lugs 24, so that the problem of offset of the plastic angle adjustment knob is solved more effectively.
Referring to fig. 9, 10, 11, 12, there are shown a plastic dial 1 with a second stepped convexo-concave 23-positioning lug 24 plastically retaining the positioning mechanism and a radial sliding fit device, a plastic recliner knob 2, an external view of the angle-changing gear box assembly, an upper exploded view of the recliner component, and a cross-sectional view of the plastic retaining and positioning mechanism, the radial sliding fit device of the second embodiment being the same as the radial sliding fit device of the first embodiment, a pair of hollow frames 25 symmetrically disposed on the outer sides of the hollow frames 25, and a pair of circular positioning lugs 24 symmetrically disposed on the outer sides of the hollow frames 25, the circular positioning lugs 24 symmetrically disposed on the outer sides of the second stepped convexo-concave 23 of the plastic recliner knob 2 being engaged in the plastic retaining and positioning mechanism. The second embodiment of the invention has the same function of preventing the offset as the first embodiment, and can also effectively eliminate the offset phenomenon of the plastic angle adjusting knob 2 during the use, and the two are slightly different in the injection mould.
Referring to fig. 13, 14, 15, 16, there are shown an external view of a plastic dial 1, a plastic recliner knob 2, a variable angle gear box assembly, an upper exploded view of the recliner component, and a cross-sectional view of a radial sliding engagement device, on which a positioning mechanism and a radial sliding engagement device are plastically held by a second stepped concave-convex body 23-a positioning projection 24 according to a third embodiment of the present invention, the third embodiment is the same as the positioning mechanism plastically held by the second stepped concave-convex body 23-the positioning projection 24 according to the first embodiment, except that the positions of the sliding engagement members in the radial sliding engagement device are partially reversed, a sleeve 28 is provided in an inner hole of the plastic dial 1, a second radial protrusion 29 is provided on an outer wall of a shaft body 27 of the plastic recliner knob 2, and the second radial protrusion 29 on the outer wall of the shaft body 27 of the plastic recliner knob 2 is inserted into the sleeve 28 of the plastic dial 1 to form the radial sliding engagement device. The third embodiment of the invention has the same function of preventing the offset as the first embodiment, and can effectively eliminate the offset phenomenon of the plastic angle adjusting knob 2 when in use, and the two are slightly different in the injection mould.
In summary, the electric fan hand-adjusting type identification swing angle adjusting device provided by the invention has the beneficial effects that:
1. a second grading concave-convex body 23-positioning convex block 24 plastic clamping positioning mechanism is arranged between the plastic identification disc 1 and the plastic angle adjusting knob 2, so that the problem that no positioning mechanism easily generates deviation in the whole process between the identification disc and the angle adjusting knob in the prior art is solved; a radial sliding fit device is arranged between the plastic angle adjusting knob 2 and the plastic marking disc 1, a rigid pair marking mechanism which is concentric with a supporting point and is in radial sliding fit is established between the plastic angle adjusting knob 2 and the plastic marking disc 1, and the push-pull force of the crank 11 and the plastic deformation reaction force of the plastic angle adjusting knob 2 can be effectively blocked along with the continuous rotation of the gearwheel 6, the hollow shaft 16 and the plastic marking disc 1 in the operation, so that the phenomenon that the plastic angle adjusting knob 2 is driven to dissociate is eliminated when a user operates the plastic angle adjusting knob.
2. Through the optimized design of the components of the plastic angle adjusting knob 2 of the plastic marker disc 1, the components are integrated into a group of hand-adjusting operation marker component combination devices which can not only perform equivalent input preset values according to the marks of the mean value of the marker disc 1, but also equivalently and accurately feed back the eccentric distance sampling values of the crank 11, the problem of misalignment of mechanical transmission sampling values in the prior art is solved, the purpose of correctly displaying accurate angle adjustment according to the marks of the marker disc 1 is well realized, the compact optimized structure completely accords with the safety regulations of electric fans, and the secondary relay installation specifications in the production line in the industry are compatible.
3. The electric fan is born for more than one hundred years, and the used hand-adjusting type mark fixed angle adjusting device (0 degree and 90 degrees); a manual identification speed adjusting device (0, 1,2,3 gears); in the hand-adjusting type mark timing adjusting device (0, 10, 20, 30, 50 minutes), the hand-adjusting type mark adjusting devices are all hand-adjusting type mark adjusting structures, one mark related component is necessarily a fixed part (or a mark disc) which is not fixed, the other mark related component is a hand-adjusting action part (or a knob, a key), one component is required to be constant, and the other component performs actions, so the hand-adjusting type mark adjusting structure is reliable and accurate, but the hand-adjusting type mark timing adjusting device can not be applied to the hand-adjusting type mark adjusting device of which the two mark related components are rotating components.
Therefore, the electric fan hand-adjusting type identification swing angle adjusting device can accurately adjust the angle in an equivalent manner according to the identification of the identification disc and conforms to the secondary relay installation specification of the electric fan.
Certainly, the specific shape of the positioning bump of the positioning mechanism plastically clamped by the second grading concave-convex body-positioning bump is set between the plastic identification disc 1 and the plastic angle adjusting knob 2 of the electric fan hand-adjusting type identification swing angle adjusting device of the invention, which is not limited to the circular arc shape shown in the above embodiment, and can also be triangular, trapezoidal or other adaptive shapes; the sliding fit form of the radial sliding fit device arranged between the plastic marking disc 1 and the plastic angle adjusting knob 2 is not limited to the specific form shown in the above embodiment, and other sliding fit forms which are mutually replaced or changed can be used, and the specific form or the local change of the specific shape fall into the protection scope of the invention; it should be apparent that the above-mentioned embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any inventive work belong to the protection scope of the present invention.
Claims (7)
1. A manual regulation type identification swing angle regulator for electric fan is composed of plastic identification disc, plastic angle regulating knob, casing of gear box, casing cover and the second speed reducer consisting of worm gear and big gear with internal cavity, crank regulating mechanism consisting of limiting slide slot, slide block, rack, crank and central gear, the first step of convex-concave body on external wall of slide block, spring-ball unit in big gear, the ball of spring-ball unit passing through the notch of limiting slide slot and in elastic contact with the first step of convex-concave body, and the plastic identification disc with unique position-locating connection between central shaft and plastic angle regulating knob, which is composed of bidirectional connecting block for punching on central shaft, the plastic angle regulating knob relay connector passing through the external end of crank and cover, and the limiting block, and the plastic angle regulating knob relay connector between central shaft and plastic angle regulating knob: a second grading concave-convex body-positioning convex block plastic clamping positioning mechanism is arranged between the plastic identification disc and the plastic angle adjusting knob, and a radial sliding matching device is arranged between the plastic identification disc and the plastic angle adjusting knob.
2. The electric fan hand regulation type identification swing angle adjusting device of claim 1, characterized in that: the second grading concavo-convex body-positioning lug plastic clamping and positioning mechanism is characterized in that second grading concavo-convex bodies are uniformly arranged on the plastic identification disc, the angular displacement angle of each grade of concavo-convex body of the second grading concavo-convex body is correspondingly equal to the angular displacement angle of each grade of identification with grading identification on the plastic identification disc, the plastic angle adjusting knob is provided with a circular arc-shaped positioning lug, and the circular arc-shaped positioning lug is clamped into the second grading concavo-convex body to form plastic clamping, positioning and matching.
3. The manual regulation type mark swinging angle regulating device of an electric fan as claimed in claim 1, characterized in that: the plastic clamping and positioning mechanism of the second grading concavo-convex body and the positioning lug is characterized in that the plastic identification disc is uniformly provided with second grading concavo-convex bodies, the angular displacement angle of each grade of concavo-convex body of the second grading concavo-convex body is correspondingly equal to the angular displacement angle of each grade of identification with grading identification of the plastic identification disc, the plastic angle modulation knob is provided with a hollow frame, the outer edge of the hollow frame is provided with an arc-shaped positioning lug, and the arc-shaped positioning lug is clamped into the second grading concavo-convex body to form plastic clamping, positioning and matching.
4. The manual regulation type mark swinging angle regulation device of an electric fan as claimed in claim 1,2 or 3, characterized in that: the positioning convex blocks are a pair of positioning convex blocks symmetrically arranged along the circumferential direction of the plastic angle adjusting knob.
5. The electric fan hand regulation type identification swing angle adjusting device of claim 1, characterized in that: the radial sliding fit device is characterized in that a shaft sleeve is arranged in an inner hole of the plastic marking disc, and the radial outer wall of the shaft body of the plastic angle adjusting knob is inserted into the shaft sleeve of the plastic marking disc to form the radial sliding fit device.
6. The manual regulation type mark swinging angle regulating device of an electric fan as claimed in claim 1, characterized in that: the radial sliding fit device is characterized in that a plurality of first radial convex strips are arranged on the inner hole wall body of the plastic identification disc, and the radial outer wall of the shaft body of the plastic angle adjusting knob is inserted into the first radial convex strips on the inner hole wall body of the plastic identification disc to form the radial sliding fit device.
7. The electric fan hand regulation type identification swing angle adjusting device of claim 1, characterized in that: the radial sliding fit device is characterized in that a shaft sleeve is arranged in an inner hole of the plastic identification disc, a second radial protruding strip is arranged on the outer wall of the shaft body of the plastic angle adjusting knob, and the second radial protruding strip on the outer wall of the shaft body of the plastic angle adjusting knob is inserted into the shaft sleeve of the plastic identification disc to form the radial sliding fit device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110492514.3A CN113153797B (en) | 2021-05-06 | 2021-05-06 | Hand regulating mark swing angle regulator for electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110492514.3A CN113153797B (en) | 2021-05-06 | 2021-05-06 | Hand regulating mark swing angle regulator for electric fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113153797A CN113153797A (en) | 2021-07-23 |
| CN113153797B true CN113153797B (en) | 2022-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110492514.3A Active CN113153797B (en) | 2021-05-06 | 2021-05-06 | Hand regulating mark swing angle regulator for electric fan |
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| CN112983874B (en) * | 2021-03-15 | 2022-04-12 | 蒋亮健 | Hand regulating type mark swing angle regulator for electric fan |
| CN113606178B (en) * | 2021-08-25 | 2022-09-06 | 蒋亮健 | Hand regulating mark swing angle regulator for electric fan |
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| EP0384052A1 (en) * | 1989-02-23 | 1990-08-29 | Li Zhengang | A device for controlling the sweeping-angle of a fan |
| CN1062405A (en) * | 1990-11-30 | 1992-07-01 | 姜琴弟 | Stepless regulator of angle for oscillating electric fan |
| CN1690442A (en) * | 2004-04-22 | 2005-11-02 | 蒋亮健 | Electric fan head tilting angle regulating device |
| CN102054394A (en) * | 2009-11-10 | 2011-05-11 | 蒋亮健 | Electric fan pivot angle open-loop adjusting display device |
| CN106050701A (en) * | 2016-07-26 | 2016-10-26 | 广东美的环境电器制造有限公司 | Fan |
| CN108916094A (en) * | 2018-08-22 | 2018-11-30 | 东莞市格尚电器有限公司 | What can be rotated up and down is convenient for packaging circulation fan |
| CN112228371A (en) * | 2020-10-26 | 2021-01-15 | 蒋亮健 | Hand-adjusting bidirectional grading mark swing angle adjusting device for electric fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7811059B2 (en) * | 2007-02-23 | 2010-10-12 | Esteban Nacapuy Sagucio | Variable angle oscillating fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0384052A1 (en) * | 1989-02-23 | 1990-08-29 | Li Zhengang | A device for controlling the sweeping-angle of a fan |
| CN1062405A (en) * | 1990-11-30 | 1992-07-01 | 姜琴弟 | Stepless regulator of angle for oscillating electric fan |
| CN1690442A (en) * | 2004-04-22 | 2005-11-02 | 蒋亮健 | Electric fan head tilting angle regulating device |
| CN102054394A (en) * | 2009-11-10 | 2011-05-11 | 蒋亮健 | Electric fan pivot angle open-loop adjusting display device |
| CN106050701A (en) * | 2016-07-26 | 2016-10-26 | 广东美的环境电器制造有限公司 | Fan |
| CN108916094A (en) * | 2018-08-22 | 2018-11-30 | 东莞市格尚电器有限公司 | What can be rotated up and down is convenient for packaging circulation fan |
| CN112228371A (en) * | 2020-10-26 | 2021-01-15 | 蒋亮健 | Hand-adjusting bidirectional grading mark swing angle adjusting device for electric fan |
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