Novel radio channel selection structure

Abstract

The utility model discloses a novel radio channel selection structure, which comprises a pointer, a pointer support and a knob, the pointer support comprises a support main body, the pointer is arranged on the support main body, and the pointer support is arranged on a circuit board; the pointer comprises a pointer part, a pointer strip and a fixing part, the pointer strip is made of a bendable strip-shaped object, the pointer part is located at the front end of the pointer strip, and the fixing part is located at the tail end of the pointer strip; a containing disc is arranged on the rotary knob, the pointer is fixedly connected with the containing disc through a fixing part, and when the rotary knob rotates, the pointer strip is wound on the containing disc through the containing disc. According to the utility model, only one flexible pointer strip is used for replacing a traditional gear and rack channel selection structure, so that the parts are saved, the cost is reduced, the pointer scale alignment is accurate, the assembly is simple, and the assembly operation is convenient; in addition, the pointer runs smoothly, tooth sweeping and pointer scraping jumping are avoided, and the hand feeling is better during table selection operation; and meanwhile, a large space does not need to be reserved for the rack, so that the whole product can be made smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of radio products, in particular to a channel selection structure of a radio. Background Art

[0002] Radios were once very popular portable listening devices, especially popular among elderly users. The radio's station selection structure is a mechanism used to select different radio stations by selecting different frequencies, and is an important part of the radio. The station selection structure of a traditional radio generally uses a knob (gear) in conjunction with a rack. Rotating the knob drives the rack to move in translation, thereby linking the pointer to move (or rotate) to achieve tuning and station selection, such as a radio disclosed in patent CN201721759309.4. However, the use of gears to drive the rack to move in translation is prone to tooth sweeping, needle scraping, and other phenomena, resulting in an uneven feel when turning the station selection knob; second, the pointer scale alignment is more troublesome, and it is easy to be offset during assembly. At the same time, the tooth assembly is more troublesome, the assembly efficiency is low, and the cost is higher; third, the rack requires a large space for straight movement, resulting in a larger overall size of the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a new radio station selection structure with simple structure, more reasonable design, more convenient assembly operation, higher efficiency, no tooth sweeping phenomenon, smoother hand feeling when rotating the knob, and capable of reducing product size.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a new type of radio channel selection structure, including a pointer, a pointer bracket and a knob, the pointer bracket includes a bracket body, the pointer is installed on the bracket body, and the pointer bracket is installed on the circuit board; the pointer includes a pointer part for indicating, and is characterized in that: the pointer also includes a pointer bar and a fixing part, the pointer bar is made of a bendable strip, the pointer part is located at the front end of the pointer bar, and the fixing part is located at the tail end of the pointer bar; a storage tray is arranged on the knob, the pointer is connected and fixed to the storage tray through its fixing part, and when the knob rotates, the pointer bar is wrapped around the storage tray through its storage tray.

[0005] Furthermore, a pointer groove is arranged below the bracket body, the pointer bar is arranged in the pointer groove, and the pointer part is arranged across the bracket body.

[0006] Furthermore, the pointer bracket also includes a knob plate, which is connected to the bracket body through a connecting portion, and the knob is movably mounted on the knob plate and a portion is exposed outside the radio body.

[0007] Furthermore, the connecting portion is an arc-shaped structure, and an arc-shaped transition groove is arranged on the inner side thereof. The pointer bar passes through the transition groove from the pointer groove and is connected and fixed to the storage tray of the knob.

[0008] Furthermore, the fixing portion includes a bending portion and a fixing shaft, the bending portion is connected to the tail end of the pointer bar, and the fixing shaft is connected to the tail end of the bending portion; a fixing hole is provided on the side wall of the storage tray, and the fixing shaft is inserted into the fixing hole to connect and fix the pointer bar to the knob.

[0009] Preferably, the pointer portion, the pointer strip, the bending portion and the fixed axis are an integrated structure, and the pointer strip is made of a rubber strip.

[0010] Furthermore, a shaft tube is arranged at the center of the knob, and a shaft hole matching the shaft tube is arranged at the center of the knob plate, and the knob and the pointer bracket are assembled into a rotatable structure by inserting the shaft tube into the shaft hole.

[0011] Furthermore, an annular storage groove is provided on the periphery of the storage plate in the knob, and the pointer bar is accommodated in the storage groove after being rolled up.

[0012] Furthermore, a fixing seat and a fixing column are respectively arranged at the head and tail ends of the bracket body, and screws are passed through the fixing seat and the fixing column to be locked on the circuit board.

[0013] The utility model only replaces the traditional gear + rack selection structure with a flexible pointer bar, which not only saves parts and reduces costs, but also has accurate pointer scale alignment and simple assembly, which facilitates assembly operations; the pointer runs smoothly without scraping teeth and needle jumping, and the hand feels better during the station selection operation; at the same time, there is no need to reserve a large space for the rack, so the entire product can be made smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model and the circuit board in combination;

[0015] Figure 2 It is a structural schematic diagram of another angle of the utility model and the circuit board in combination;

[0016] Figure 3 It is a structural schematic diagram of the main part of the utility model;

[0017] Figure 4 It is an exploded schematic diagram of the main part of the utility model;

[0018] Figure 5 The utility model is a schematic diagram of the structure when it is installed behind a radio.

[0019] In the figure, 1 is a pointer, 11 is a pointer part, 12 is a pointer bar, 13 is a bending part, 14 is a fixed shaft, 2 is a pointer bracket, 21 is a bracket body, 22 is a pointer groove, 23 is a knob disk, 24 is a connecting part, 25 is an axis hole, 26 is a fixing seat, 27 is a fixing column, 3 is a knob, 31 is an axis tube, 32 is a storage disk, 33 is a storage groove, 4 is a circuit board, and 5 is a radio body. DETAILED DESCRIPTION

[0020] In this embodiment, refer to Figure 1-Figure 5 The novel radio station selection structure includes a pointer 1, a pointer bracket 2 and a knob 3. The pointer bracket 2 includes a bracket body 21. The pointer 1 is mounted on the bracket body 21. The pointer bracket 2 is mounted on a circuit board 4. The pointer 1 includes a pointer portion 11 for indicating. The pointer portion 11 moves along the bracket body 21 to achieve station selection. The pointer 1 also includes a pointer bar 12 and a fixing portion. The pointer bar 12 is made of a bendable bar. The pointer portion 11 is located at the front end of the pointer bar 12, and the fixing portion is located at the rear end of the pointer bar 12. A storage tray 32 is provided on the knob 3. The pointer 1 is connected and fixed to the storage tray 32 through its fixing portion. When the knob 3 rotates, the pointer bar 12 is wound around the storage tray 32 through its storage tray 32, so that the pointer portion 11 is pulled along the bracket body 21 by the pointer bar 12. Reverse rotation of the knob will release the pointer bar 12, and the pointer bar 12 will push the pointer portion 11 to move back.

[0021] A pointer groove 22 is provided below the bracket body 21 , the pointer bar 12 is disposed in the pointer groove 22 , and the pointer portion 11 is straddled on the bracket body 21 .

[0022] The pointer bracket 21 also includes a knob plate 23, which is connected to the bracket body 21 through a connecting portion 24. The knob 3 is movably mounted on the knob plate 23 and a portion is exposed outside the radio body 5 so that it can be rotated by fingers.

[0023] The connecting portion 24 is an arc-shaped structure, and an arc-shaped transition groove is arranged inside the connecting portion 24. The pointer bar 12 passes through the transition groove from the pointer groove 22 and is connected and fixed to the storage tray 32 of the knob 3, so that the pointer bar 12 can move more smoothly.

[0024] The fixing portion includes a bending portion 13 and a fixing shaft 14, the bending portion 13 is connected to the tail end of the pointer bar 12, and the fixing shaft 14 is connected to the tail end of the bending portion 13; a fixing hole is provided on the side wall of the storage tray 32, and the fixing shaft 14 is inserted into the fixing hole to connect and fix the pointer bar 12 to the knob 3. This structure makes the assembly operation very convenient.

[0025] The pointer portion 11, pointer strip 12, bending portion 13 and fixed shaft 14 are an integrated structure. The pointer strip 12 is made of a rubber strip and has a certain degree of flexibility but is not very soft.

[0026] A shaft tube 31 is arranged at the center of the knob 3, and a shaft hole 25 matching the shaft tube 31 is arranged at the center of the knob disk 23. The shaft tube 31 is inserted into the shaft hole 25 so that the knob 3 and the pointer bracket 2 are assembled into a rotatable structure.

[0027] An annular storage groove 33 is provided on the periphery of the storage plate 32 in the knob 3. The pointer bar 12 is accommodated in the storage groove 33 after being rolled up. In this way, only a small space is required to accommodate it, which is conducive to making the entire radio smaller.

[0028] A fixing seat 26 and a fixing column 27 are respectively provided at the head and tail ends of the bracket body 21 , and screws are passed through the fixing seat 26 and the fixing column 27 to be locked on the circuit board 4 .

[0029] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A new radio station selection structure, including a pointer, a pointer bracket and a knob, the pointer bracket includes a bracket body, the pointer is mounted on the bracket body, and the pointer bracket is mounted on a circuit board; the pointer includes a pointer part for indicating, characterized in that: The pointer also includes a pointer bar and a fixing part. The pointer bar is made of a bendable strip. The pointer part is located at the front end of the pointer bar, and the fixing part is located at the rear end of the pointer bar. A storage tray is provided on the knob. The pointer is connected and fixed to the storage tray through its fixing part. When the knob rotates, the pointer bar is wound around the storage tray through its storage tray.

2. The novel radio station selection structure according to claim 1 is characterized in that: A pointer groove is arranged below the bracket body, the pointer bar is arranged in the pointer groove, and the pointer part is arranged across the bracket body.

3. The novel radio station selection structure according to claim 1 is characterized in that: The pointer bracket also includes a knob plate, which is connected to the bracket body through a connecting portion. The knob is movably mounted on the knob plate and a portion of the knob is exposed outside the radio body.

4. The novel radio station selection structure according to claim 3 is characterized in that: The connecting portion is an arc-shaped structure, and an arc-shaped transition groove is arranged on the inner side thereof. The pointer bar passes through the transition groove from the pointer groove and is connected and fixed to the storage plate of the knob.

5. The novel radio station selection structure according to claim 1 is characterized in that: The fixing part includes a bending part and a fixing shaft, the bending part is connected to the tail end of the pointer bar, and the fixing shaft is connected to the tail end of the bending part; a fixing hole is arranged on the side wall of the storage tray, and the fixing shaft is inserted into the fixing hole to connect and fix the pointer bar and the knob.

6. The novel radio station selection structure according to claim 5 is characterized in that: The pointer part, the pointer strip, the bending part and the fixed axis are an integrated structure, and the pointer strip is made of a rubber strip.

7. The novel radio station selection structure according to claim 1 is characterized in that: A shaft tube is arranged at the center of the knob, and a shaft hole matched with the shaft tube is arranged at the center of the knob disk. The shaft tube is inserted into the shaft hole so that the knob and the pointer bracket are assembled into a rotatable structure.

8. The novel radio station selection structure according to claim 1 is characterized in that: An annular storage groove is arranged on the periphery of the storage plate in the knob, and the pointer bar is accommodated in the storage groove after being rolled up.

9. The novel radio station selection structure according to claim 1 is characterized in that: A fixing seat and a fixing column are respectively arranged at the head and tail ends of the bracket body, and screws are passed through the fixing seat and the fixing column to be locked on the circuit board.

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