CN221263814U - High-precision tuning structure and radio - Google Patents
High-precision tuning structure and radio Download PDFInfo
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- CN221263814U CN221263814U CN202420996442.5U CN202420996442U CN221263814U CN 221263814 U CN221263814 U CN 221263814U CN 202420996442 U CN202420996442 U CN 202420996442U CN 221263814 U CN221263814 U CN 221263814U
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- 230000000694 effects Effects 0.000 abstract description 6
- 230000004075 alteration Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of radios, and particularly discloses a high-precision tuning structure and a radio, comprising the following steps: the potentiometer comprises a gear knob and a double-toothed ring, wherein the gear knob and the double-toothed ring are used for adjusting the potentiometer, one end of the gear knob is provided with an outer-toothed ring, and one end of the outer-toothed ring, which is far away from the gear knob, is provided with a potentiometer shaft sleeve; the inner wall of the double-tooth ring is provided with inner teeth, the outer wall of the double-tooth ring is provided with outer teeth, the outer tooth ring is meshed with the inner teeth, and one side of the outer teeth is meshed and connected with a dial wheel; when the frequency is greatly adjusted, the high-precision tuning structure and the radio do not need to rotate the gear knob for many times, and only the single rotation of the dial wheel can also enable the gear knob to rotate greatly, so that the rapid positioning to a required frequency band is realized, the single rotation of the gear knob is convenient for fine tuning, the broadcasting is clearer, and the radio effect is better; due to the adoption of the multi-stage gear linkage mode, the transmission efficiency of the bench adjusting mechanism is higher, the operation is more stable, and the bench adjusting hand feeling is better.
Description
Technical Field
The utility model relates to the technical field of radios, in particular to a high-precision tuning structure and a radio.
Background
A radio is a common playing tool for receiving radio wires or broadcasting, and an adjusting knob is required to adjust an internal potentiometer when the radio is frequency-modulated.
The utility model discloses a band switch convenient to adjust as in chinese patent document CN210535562U, it is including setting up the PCB board in the casing, setting up the straight push switch on the PCB board and set up outside the casing be used for adjusting the band knob of straight push switch, set up movable groove on the straight push switch, it has the regulation pole to stretch out in the movable groove, it is in to adjust the pole activity setting in the movable groove, the extension of regulation pole is provided with the movable block, the protruding rack that is equipped with in the length direction of this movable block of one side of movable block, the bottom of band knob pass through the band gear with the rack intermeshing of movable block one side makes through rotating the band knob the band gear rotatory drives the removal of movable block and regulation pole.
According to the technical content disclosed in the prior art, the conventional mechanical fm radio adopts the potentiometer to rotate for frequency modulation, but because only one transmission path exists between the potentiometer and the band knob, when the frequency needs to be greatly adjusted, the band knob needs to be rotated for many times at a large angle, so that the desired frequency band cannot be quickly positioned, and the use is inconvenient.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a high-precision tuning radio and a radio, and aims to solve the problems.
The technical scheme adopted for solving the technical problems is as follows: a high precision tuning structure comprising:
The potentiometer comprises a gear knob for adjusting the potentiometer, wherein one end of the gear knob is provided with an outer gear ring, and one end of the outer gear ring, which is far away from the gear knob, is provided with a potentiometer shaft sleeve;
The double-tooth ring, the inner wall of double-tooth ring is provided with the internal tooth, the outer wall of double-tooth ring is provided with the external tooth, outer ring gear and internal tooth looks meshing, one side meshing of external tooth is connected with the table dish wheel.
The utility model has the advantages that when the dial wheel is rotated, the external teeth can drive the double-toothed ring to integrally rotate, so that the internal teeth in the double-toothed ring rotate, thereby driving the gear knob to rotate, and when the frequency is greatly adjusted, the gear knob does not need to be rotated for a plurality of times at a large angle, and only a single small angle is needed to rotate the dial wheel, the gear knob can be rotated greatly, thereby realizing rapid positioning to a required frequency band; further, the gear knob is rotated at a small angle to conduct fine adjustment of frequency, so that broadcasting is clearer and the radio effect is better; meanwhile, due to the adoption of a multi-stage gear linkage mode, the transmission efficiency of the bench adjusting mechanism is higher, the operation is more stable, the bench adjusting handfeel is better, and the whole service life is longer.
Further, the outer wall of the potentiometer shaft sleeve is provided with a first gear, a rotatable pointer is arranged in the dial wheel, one end of the pointer is provided with a pointer gear, and the first gear is connected with the pointer gear through a gear transmission group.
After the further structure is adopted, when the gear knob rotates, the first gear drives the pointer gear to rotate through the gear transmission group, so that the pointer is driven to rotate, and the current frequency is indicated.
Further, the gear transmission group comprises a second gear meshed with the first gear, a third gear meshed with the second gear is connected in a meshed mode, and the third gear is connected with the pointer gear through a fourth gear.
After adopting above-mentioned further structure, owing to adopt multistage gear drive, so whether adjust gear knob or table dish wheel, can both drive the rotation of potentiometre to realize the frequency adjustment.
Further, the center of the double-tooth ring is provided with a center wheel, the center wheel is connected with the inner wall of the double-tooth ring through a limiting rod, and protruding columns located on the panel are arranged on two sides of the limiting rod.
After adopting above-mentioned further structure, inject the rotatory stroke of double-toothed ring through the projection of gag lever post both sides, prevent to appear damaging the condition because of surpassing the potentiometre stroke.
Further, one side of the double-tooth ring far away from the dial wheel is provided with a clamping wheel, and the clamping wheel is meshed with the external teeth.
After adopting above-mentioned further structure, the double-toothed ring meshing is between centre gripping wheel and dial plate wheel for the double-toothed ring is more stable when rotatory, prevents to appear rocking or not hard up phenomenon easily after long-time the use.
Further, the outer wall of the dial wheel is provided with dial teeth, and the transmission ratio from the dial teeth to the gear knob is smaller than 1.
After the further structure is adopted, the rotation of the dial wheel at a small angle can be converted into the rotation of the gear knob at a large angle, so that the quick positioning of the frequency is realized.
The utility model also discloses a radio, which comprises the high-precision tuning structure, and further comprises a panel, wherein the double-toothed ring and the dial wheel are arranged on one side of the surface of the panel through a rotating shaft, the gear knob is rotatably arranged on the panel through a potentiometer shaft sleeve, a circuit board is arranged on the other side of the panel, a potentiometer connected with the potentiometer shaft sleeve is arranged on the circuit board, and the second gear, the third gear, the fourth gear and the pointer gear are positioned on one side of the bottom surface of the panel.
The radio can be rapidly positioned to a required frequency band through the rotation of the dial wheel, and then fine adjustment is performed through the rotation of the gear knob at a small angle, so that broadcasting is clearer and the radio effect is better; in addition, the radio adopts a multi-stage gear linkage mode, so that the transmission efficiency of the tuning mechanism is higher, the operation is more stable, the tuning handfeel is better, and the overall service life is longer.
Further, the dial plate is inserted and installed in the dial plate wheel, the lower end of the dial plate is fixedly connected with the panel through an installation foot, the dial plate wheel and the dial plate relatively rotate and slide, and the pointer is connected with the pointer gear through a center shaft.
After adopting above-mentioned further structure, the dial plate wheel is installed on the panel through the dial plate to can adjust the frequency through rotatory table dial plate wheel, the pointer can rotate on the dial plate moreover, and overall structure is compacter, durable.
Drawings
Fig. 1 is a schematic perspective view of a radio receiver according to the present utility model.
Fig. 2 is a schematic perspective view of a panel and a circuit board according to the present utility model.
Fig. 3 is a schematic perspective view of a panel according to the present utility model.
Fig. 4 is a schematic perspective view of a high-precision tuning structure according to the present utility model.
Fig. 5 is a schematic perspective view of a gear assembly according to the present utility model.
Fig. 6 is a schematic view of the structure of the dial wheel and dial.
In the figure: panel 1, pointer 2, gear knob 3, circuit board 4, double-tooth ring 5, dial wheel 6, external tooth ring 7, internal tooth 8, external tooth 9, dial tooth 10, potentiometer shaft sleeve 11, first gear 12, second gear 13, third gear 14, fourth gear 15, pointer gear 16, holding wheel 17, stop lever 18, mounting foot 19, center wheel 20, projection 21.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
The radio shown in the combination of fig. 1 to 5 comprises a high-precision tuning structure and a panel 1, wherein the high-precision tuning structure comprises a gear knob 3 for adjusting a potentiometer and a double-toothed ring 5, one end of the gear knob 3 is provided with an external tooth ring 7, and one end of the external tooth ring 7 far away from the gear knob 3 is provided with a potentiometer shaft sleeve 11; the inner wall of the double-tooth ring 5 is provided with inner teeth 8, the outer wall of the double-tooth ring 5 is provided with outer teeth 9, the outer teeth ring 7 is meshed with the inner teeth 8, and one side of the outer teeth 9 is meshed and connected with a dial wheel 6; in the embodiment, when the dial wheel 6 is rotated, the external teeth 9 can drive the double-toothed ring 5 to integrally rotate, so that the internal teeth 8 positioned in the double-toothed ring 5 rotate, and the gear knob 3 is driven to rotate, so that when the frequency is greatly adjusted, the gear knob 3 does not need to be rotated for many times, and only the dial wheel 6 is rotated for a single time and the gear knob 3 can be rotated greatly, so that the rapid positioning to a required frequency band is realized; further, the gear knob 3 is rotated by a small angle to carry out frequency fine adjustment, so that broadcasting is clearer and the radio effect is better; meanwhile, due to the adoption of a multi-stage gear linkage mode, the transmission efficiency of the bench adjusting mechanism is higher, the operation is more stable, the bench adjusting handfeel is better, and the whole service life is longer.
The outer wall of the potentiometer shaft sleeve 11 of the embodiment is provided with a first gear 12, a rotatable pointer 2 is arranged in the dial wheel 6, one end of the pointer 2 is provided with a pointer gear 16, and the first gear 12 is connected with the pointer gear 16 through a gear transmission group; when the gear knob 3 rotates, the first gear 12 drives the pointer gear 16 to rotate through the gear transmission group, so that the pointer 2 is driven to rotate, and the frequency to which the current frequency is adjusted is indicated.
The gear transmission group comprises a second gear 13 meshed with the first gear 12, the second gear 13 is also meshed with a third gear 14, the third gear 14 is connected with a pointer gear 16 through a fourth gear 15, the third gear 14 is non-coaxially connected with the double-toothed ring 5, namely, the third gear 14 and the double-toothed ring 5 are both installed on the panel 1 by adopting separate central shafts; because of adopting multi-stage gear transmission, the potentiometer can be driven to rotate no matter the gear knob 3 or the dial wheel 6 is adjusted, so that the frequency adjustment is realized.
The center of the double-tooth ring 5 is provided with a center wheel 20, the center wheel 20 is connected with the inner wall of the double-tooth ring 5 through a limiting rod 18, and two sides of the limiting rod 18 are provided with convex columns 21 positioned on the panel 1; the rotation travel of the double-tooth ring 5 is limited by the convex columns 21 on the two sides of the limiting rod 18, so that the situation of damage caused by exceeding the travel of the potentiometer is prevented.
It should be noted that, in this embodiment, a clamping wheel 17 is disposed on a side of the double-toothed ring 5 away from the dial wheel 6, and the clamping wheel 17 is meshed with the external teeth 9; the double-toothed ring 5 is meshed between the clamping wheel 17 and the dial wheel 6, so that the double-toothed ring 5 is more stable when rotating, and the phenomenon of shaking or loosening easily occurs after long-time use is prevented.
It should be noted that, in this embodiment, the double-toothed ring 5 and the dial wheel 6 are installed on one side of the surface of the panel 1 through a rotating shaft, the gear knob 3 is rotatably installed on the panel 1 through a potentiometer shaft sleeve 11, the other side of the panel 1 is installed with a circuit board 4, the circuit board 4 is provided with a potentiometer connected with the potentiometer shaft sleeve 11, and the second gear 13, the third gear 14, the fourth gear 15 and the pointer gear 16 are located on one side of the bottom surface of the panel 1; the radio can be rapidly positioned to a required frequency band through the rotation of the dial wheel 6, and then fine adjustment is performed through the small-angle rotation gear knob 3, so that the broadcasting is clearer and the radio effect is better; meanwhile, the radio adopts a multi-stage gear linkage mode, so that the transmission efficiency of the tuning mechanism is higher, the operation is more stable, the tuning handfeel is better, and the overall service life is longer.
It should be noted that, the outer wall of the dial wheel 6 of the embodiment is provided with dial teeth 10, and the transmission ratio from the dial teeth 10 to the gear knob 3 is less than 1; the rotation of the dial wheel at a small angle can be converted into the rotation of the gear knob at a large angle, so that the quick positioning of the frequency is realized.
As shown in fig. 6, a dial is inserted into the dial wheel 6 of the present embodiment, the lower end of the dial is fixedly connected with the panel 1 through a mounting pin 19, the dial wheel 6 and the dial relatively rotate and slide, the pointer 2 is connected with the pointer gear 16 through a central shaft, and the dial teeth 10 are arranged on the outer wall of the dial wheel 6; the dial wheel 6 is mounted on the faceplate 1 by means of a dial, so that the frequency can be adjusted by rotating the dial wheel 6, and finally the currently adjusted frequency is indicated by the pointer 2 rotating on the dial.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (8)
1. The utility model provides a high accuracy transfers platform structure which characterized in that includes:
the potentiometer comprises a gear knob (3) for adjusting the potentiometer, wherein one end of the gear knob (3) is provided with an outer gear ring (7), and one end, far away from the gear knob (3), of the outer gear ring (7) is provided with a potentiometer shaft sleeve (11);
The double-tooth ring (5), the inner wall of double-tooth ring (5) is provided with internal tooth (8), the outer wall of double-tooth ring (5) is provided with external tooth (9), external tooth ring (7) meshes with internal tooth (8), one side meshing of external tooth (9) is connected with dial wheel (6).
2. The high-precision tuning structure according to claim 1, wherein a first gear (12) is arranged on the outer wall of the potentiometer shaft sleeve (11), a rotatable pointer (2) is arranged in the dial wheel (6), a pointer gear (16) is arranged at one end of the pointer (2), and the first gear (12) is connected with the pointer gear (16) through a gear transmission group.
3. A high precision tuning structure according to claim 2, wherein the gear transmission group comprises a second gear (13) meshed with the first gear (12), the second gear (13) is further meshed with a third gear (14), and the third gear (14) is connected with a pointer gear (16) through a fourth gear (15).
4. The high-precision tuning structure according to claim 1, wherein a center wheel (20) is arranged at the center of the double-toothed ring (5), the center wheel (20) is connected with the inner wall of the double-toothed ring (5) through a limiting rod (18), and convex columns (21) positioned on the panel (1) are arranged on two sides of the limiting rod (18).
5. The high-precision tuning structure according to claim 1, wherein a clamping wheel (17) is arranged on one side of the double-toothed ring (5) far away from the dial wheel (6), and the clamping wheel (17) is meshed with the external teeth (9).
6. The high-precision tuning structure according to claim 1, wherein the outer wall of the dial wheel (6) is provided with dial teeth (10), and the transmission ratio from the dial teeth (10) to the gear knob (3) is smaller than 1.
7. A radio comprising the high-precision tuning structure as claimed in any one of claims 1 to 6, and further comprising a panel (1), wherein the double-toothed ring (5) and the dial wheel (6) are mounted on one side of the surface of the panel (1) through rotating shafts, the gear knob (3) is rotatably mounted on the panel (1) through a potentiometer shaft sleeve (11), a circuit board (4) is mounted on the other side of the panel (1), a potentiometer connected with the potentiometer shaft sleeve (11) is arranged on the circuit board (4), and the second gear (13), the third gear (14), the fourth gear (15) and the pointer gear (16) are located on one side of the bottom surface of the panel (1).
8. The radio according to claim 7, wherein a dial is inserted into the dial wheel (6), the lower end of the dial is fixedly connected with the panel (1) through a mounting pin (19), the dial wheel (6) and the dial relatively rotate and slide, and the pointer (2) is connected with the pointer gear (16) through a central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420996442.5U CN221263814U (en) | 2024-05-09 | 2024-05-09 | High-precision tuning structure and radio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420996442.5U CN221263814U (en) | 2024-05-09 | 2024-05-09 | High-precision tuning structure and radio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221263814U true CN221263814U (en) | 2024-07-02 |
Family
ID=91660572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420996442.5U Active CN221263814U (en) | 2024-05-09 | 2024-05-09 | High-precision tuning structure and radio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221263814U (en) |
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2024
- 2024-05-09 CN CN202420996442.5U patent/CN221263814U/en active Active
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