Sound control circuit for steering wheel and control method

Abstract

The invention discloses a sound control circuit for a steering wheel and a control method, and relates to the technical field of sound control mechanisms, the sound control circuit comprises a mounting plate, one side of the mounting plate is fixedly connected with a sleeve, the sleeve is rotatably connected with a butt joint seat, the butt joint seat is fixedly connected with a positioning plate, the positioning plate is rotatably connected with a shaft sleeve, and the shaft sleeve is fixedly connected with a rotating shaft. A mounting plate is fixedly mounted on the base, a frame body is fixedly mounted on the mounting plate, a movable groove is formed in the frame body, a connecting plug is arranged on the frame body, a positioning seat is fixedly mounted on the connecting plug, a pair of first arm plates is rotationally connected to the positioning seat, and a second arm plate is rotationally connected to the other ends of the pair of first arm plates. The sound control mechanism is reasonable in structure, the angle of the positioning plate can be adjusted through the adjusting assembly, the sound control mechanism is suitable for different steering wheel angles, and then the distance of the position of the sound control mechanism body can be freely adjusted according to habits through the positioning assembly and the limiting assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of voice control mechanisms, and particularly to a voice control circuit and control method for a steering wheel. Background Art

[0002] In most modern electric vehicles, a voice control mechanism is installed inside. The driver can control various functions of the vehicle, such as navigation, entertainment systems, communication devices, etc., through voice commands without manual operation, thereby improving the driving convenience. Through voice control, the driver can keep their line of sight forward, hands not leaving the steering wheel, reducing the risk of distraction caused by operating the center console, and thus improving driving safety.

[0003] The existing voice control mechanism is arranged inside the center console, but the installation position of this voice control mechanism is not convenient for real-time identification of the driver's voice. The driver needs to position their head close to the center console to wake up the voice, which affects driving safety. Summary of the Invention

[0004] The purpose of this application is to provide a voice control circuit and control method for a steering wheel, which realizes that the angle of the positioning plate can be adjusted through an adjustment component, suitable for different steering wheel angles, and then the position of the voice control mechanism body can be freely adjusted in terms of distance according to habits through a positioning component and a limiting component.

[0005] To achieve the above purpose, this application provides the following technical solutions: A voice control circuit and control method for a steering wheel, including a mounting plate, one side of the mounting plate is fixedly connected with a sleeve, a docking seat is rotatably connected to the sleeve, a positioning plate is fixedly connected to the docking seat, a bushing is rotatably connected to the positioning plate, a frame is fixedly installed on the mounting plate, a movable slot is opened on the frame, a plug connector is arranged on the frame, a positioning seat is fixedly installed on the plug connector, a pair of first arm plates are rotatably connected to the positioning seat, the other ends of the pair of first arm plates are rotatably connected to a second arm plate, and the voice control mechanism body is installed at the other end of the second arm plate; it also includes an adjustment component, a positioning component, and a limiting component. The adjustment component is arranged on the mounting plate for adjusting the angle of the positioning plate, the positioning component is arranged on the mounting plate for cooperative use, and the limiting component is arranged on the frame for cooperative use.

[0006] Preferably, the adjusting assembly includes a pair of first hinge seats fixedly installed on the docking seat. A curved plate is rotatably connected to the pair of first hinge seats. The other end of the curved plate is rotatably connected to a second hinge seat. The second hinge seat is fixedly connected to a sleeve block. The sleeve block is slidably connected to a sliding rod. One end of the sliding rod is fixedly connected to a bracket. The bracket is fixedly connected to the mounting plate. The other end of the sliding rod is fixedly connected to a retaining ring.

[0007] Preferably, a first spring is sleeved on the sliding rod. The two ends of the first spring are respectively fixedly connected to one side of the sleeve block and one side of the retaining ring.

[0008] Preferably, a cross plate is fixedly connected to the inner side of the sleeve block. A plug rod is movably inserted through the middle position of the cross plate. The top end of the plug rod is fixedly connected to a column head. A rod body is fixedly connected to the surface of the column head. The bottom end of the plug rod is fixedly connected to a bottom plate. A second spring is sleeved on the plug rod. The two ends of the second spring are respectively fixedly connected to the bottom surface of the cross plate and the top surface of the bottom plate. A locking tooth is fixedly connected to the bottom end of the bottom plate. The locking tooth is engaged with a toothed plate. The toothed plate is fixedly connected to the mounting plate.

[0009] Preferably, the positioning assembly includes a pair of sliding grooves opened on the mounting plate. A through groove is opened at the middle position of the mounting plate. A side plate is fixedly connected to one side of the top surface of the mounting plate close to the through groove. An arc groove is opened on the side plate. A limiting plate is arranged on the bottom surface of the mounting plate. A clamping groove is opened on the limiting plate. A sliding column is fixedly connected to the limiting plate. The sliding column is slidably connected to the inside of the sliding groove. The top end of the sliding column is fixedly connected to a sleeve ring.

[0010] Preferably, an L-shaped plate is fixedly connected to the middle position of the top surface of the limiting plate. The L-shaped plate is slidably connected to the inside of the through groove. An adjusting column is movably inserted through the L-shaped plate. A turning handle is fixedly connected to the top end of the adjusting column.

[0011] Preferably, a third spring is sleeved on the adjusting column. The two ends of the third spring are respectively fixedly connected to the bottom surface of the turning handle and the top surface of the L-shaped plate. A cam is fixedly connected to the bottom end of the adjusting column. The cam is engaged with the inside of one of the arc grooves.

[0012] Preferably, the limiting assembly includes a sliding plate slidably connected to the inside of the movable groove. A socket is fixedly installed at the top end of the sliding plate. The plug connector is detachably installed inside the socket.

[0013] Preferably, a storage rack is fixedly connected to the middle position of one side of the socket, a movable rod is movably inserted on the storage rack, one end of the movable rod is fixedly connected to an adjusting head, a fourth spring is sleeved on the movable rod, two ends of the fourth spring are respectively fixedly connected to one side of the adjusting head and one side of the storage rack, and one end of the movable rod is fixedly connected to a clamping plate.

[0014] Preferably, the card plate is rotatably connected to a first linkage plate, the other end of the first linkage plate is rotatably connected to a linkage rod, one end of the linkage rod is fixedly connected to the middle position of the second linkage plate, one end of the second linkage plate is rotatably connected to a positioning column, the top end of the positioning column is fixedly connected to the bottom position of the slide plate, the other end of the second linkage plate is fixedly connected to a card column, a pair of support plates are fixedly connected to the inside of the frame body, a plurality of groups of limiting grooves are provided on the pair of support plates, and the card column is clamped inside one of the limiting grooves.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. The structure of the present invention is reasonable. When the angle of the positioning plate needs to be adjusted, the rod body on the column head is pulled upward, and the insertion rod is moved upward by pulling the rod body. The movement of the insertion rod causes the bottom plate to press the second spring, and then the clamping teeth on the bottom surface of the bottom plate will be separated from the inside of the tooth plate, and then the cross plate is pulled, and the sleeve block slides on the slide rod by pulling the cross plate, and then the movement of the sleeve block pulls the docking seat on the positioning plate through the arc plate to rotate on the sleeve, so as to facilitate the adjustment of the angle of the positioning plate;

[0017] 2. In the present invention, when the position of the limit plate needs to be adjusted, the handle is pulled to drive the adjustment column to rotate. A third spring is sleeved on the adjustment column. The third spring is rotated by rotating the adjustment column. A cam is fixedly connected to the bottom end of the adjustment column. The cam is separated from the inside of the arc groove by rotating the adjustment column. Then, the position of the limit plate is adjusted so that the slots on the limit plate are clamped on the control rods on both sides of the steering wheel, which is suitable for different models of vehicles.

[0018] 3. In the present invention, when it is necessary to adjust the front and rear positions of the voice control mechanism body, the adjustment head is pushed. The pushing of the adjustment head causes the movable rod to slide on the storage rack. A clamping plate is fixedly connected to one end of the movable rod. The movement of the movable rod causes the clamping plate to move. A first linkage plate is rotatably connected to the clamping plate, and the other end of the first linkage plate is rotatably connected to the linkage rod. One end of the linkage rod is fixedly connected to the second linkage plate. The movement of the clamping plate pushes the second linkage plate on the linkage rod to rotate on the positioning column through the first linkage plate. A clamping column is fixedly connected to the other end of the second linkage plate. The rotation of the second linkage plate causes the clamping column to disengage from the inside of the limiting groove, so as to facilitate the adjustment of the front and rear positions of the voice control mechanism body according to the usage habits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a three-dimensional structure diagram of the mounting plate;

[0021] Figure 2 It is a bottom three-dimensional structure diagram of the mounting plate;

[0022] Figure 3 It is a partial three-dimensional structure diagram of the mounting plate;

[0023] Figure 4 It is a three-dimensional structure diagram of the limiting plate;

[0024] Figure 5 It is a three-dimensional structure diagram of the frame body;

[0025] Figure 6 It is a bottom three-dimensional structure diagram of the frame body;

[0026] Figure 7 For Figure 3 The enlarged structure diagram at position A in

[0027] Figure 8 For Figure 4 The enlarged structure diagram at position B in

[0028] Figure 9 For Figure 6 The enlarged structure diagram at position C in

[0029] In the figure: 1. mounting plate; 101. sleeve; 102. docking seat; 103. positioning plate; 104. bushing; 105. frame; 106. movable slot; 107. plug connector; 108. positioning seat; 109. first arm plate; 110. second arm plate; 112. voice control mechanism body; 2. first hinge seat; 201. arc plate; 202. second hinge seat; 203. sleeve block; 204. slide bar; 205. bracket; 206. retaining ring; 207. first spring; 208. cross plate; 209. insertion rod; 210. stud; 211. rod body; 212. bottom plate; 213. second spring; 214. locking tooth; 215. toothed plate; 3. chute; 301. through slot; 302. side plate; 303. arc chute; 304. limiting plate; 305. clamping slot; 306. sliding column; 307. collar; 308. L-shaped plate; 309. adjusting column; 310. turning handle; 311. third spring; 312. cam; 4. sliding plate; 401. insertion sleeve; 402. storage rack; 403. movable rod; 404. adjusting head; 405. fourth spring; 406. clamping plate; 407. first linkage plate; 408. linkage rod; 409. second linkage plate; 410. positioning column; 411. clamping column; 412. support plate; 413. limiting slot. Detailed implementation manners

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment: Refer to Figure 1 - Figure 9 As shown in the figure, a voice control circuit and control method for a steering wheel includes a mounting plate 1. One side of the mounting plate 1 is fixedly connected with a sleeve 101. A docking seat 102 is rotatably connected to the sleeve 101. A positioning plate 103 is fixedly connected to the docking seat 102. A bushing 104 is rotatably connected to the positioning plate 103. A frame 105 is fixedly installed on the mounting plate 1. A movable slot 106 is formed in the frame 105. A plug connector 107 is arranged on the frame 105. A positioning seat 108 is fixedly installed on the plug connector 107. A pair of first arm plates 109 are rotatably connected to the positioning seat 108. The other ends of the pair of first arm plates 109 are rotatably connected to a second arm plate 110. The other end of the second arm plate 110 is provided with a voice control mechanism body 112. It further includes an adjusting component, a positioning component and a limiting component. The adjusting component is arranged on the mounting plate 1 for adjusting the angle of the positioning plate 103. The positioning component is arranged on the mounting plate 1 for cooperative use. The limiting component is arranged on the frame 105 for cooperative use.

[0032] Specifically, it should be noted here that the voice control mechanism body 112 is electrically connected to the vehicle system through a wire, and the specific working principle between them is cited through the existing technology, and will not be elaborated here.

[0033] As an implementation manner in this embodiment, the adjusting assembly includes a pair of first hinge seats 2 fixedly installed on the docking seat 102. A curved plate 201 is rotatably connected to the pair of first hinge seats 2. The other end of the curved plate 201 is rotatably connected to a second hinge seat 202. The second hinge seat 202 is fixedly connected to a sleeve block 203. The sleeve block 203 is slidably connected to a slide rod 204. One end of the slide rod 204 is fixedly connected to a bracket 205. The bracket 205 is fixedly connected to the mounting plate 1. The other end of the slide rod 204 is fixedly connected to a retaining ring 206. A first spring 207 is sleeved on the slide rod 204. The two ends of the first spring 207 are respectively fixedly connected to one side of the sleeve block 203 and one side of the retaining ring 206. A cross plate 208 is fixedly connected to the inner side of the sleeve block 203. A plug rod 209 is movably inserted in the middle position of the cross plate 208. The top end of the plug rod 209 is fixedly connected to a stud 210. A rod body 211 is fixedly connected to the surface of the stud 210. The bottom end of the plug rod 209 is fixedly connected to a bottom plate 212. A second spring 213 is sleeved on the plug rod 209. The two ends of the second spring 213 are respectively fixedly connected to the bottom surface of the cross plate 208 and the top surface of the bottom plate 212. A locking tooth 214 is fixedly connected to the bottom end of the bottom plate 212. The locking tooth 214 is engaged with a toothed plate 215. The toothed plate 215 is fixedly connected to the mounting plate 1.

[0034] Specifically, when it is necessary to adjust the angle of the positioning plate 103, the rod body 211 on the stud 210 is pulled upward. Through the pulling of the rod body 211, the plug rod 209 moves upward. The movement of the plug rod 209 causes the bottom plate 212 to squeeze the second spring 213. Then the locking tooth 214 on the bottom surface of the bottom plate 212 will disengage from the inside of the toothed plate 215. Then the cross plate 208 is pulled. Through the pulling of the cross plate 208, the sleeve block 203 slides on the slide rod 204. Then the movement of the sleeve block 203 pulls the docking seat 102 on the positioning plate 103 to rotate on the sleeve 101 through the curved plate 201, so as to facilitate the adjustment of the angle of the positioning plate 103.

[0035] As an implementation mode in this embodiment, the positioning component includes a pair of sliding grooves 3 opened on the mounting plate 1. A through groove 301 is opened at the middle position of the mounting plate 1. A side plate 302 is fixedly connected to one side of the top surface of the mounting plate 1 close to the through groove 301. An arc groove 303 is opened on the side plate 302. A limiting plate 304 is arranged on the bottom surface of the mounting plate 1. A clamping groove 305 is opened on the limiting plate 304. A sliding column 306 is fixedly connected to the limiting plate 304. The sliding column 306 is slidably connected to the inside of the sliding groove 3. A collar 307 is fixedly connected to the top end of the sliding column 306. An L-shaped plate 308 is fixedly connected to the middle position of the top surface of the limiting plate 304. The L-shaped plate 308 is slidably connected to the inside of the through groove 301. An adjusting column 309 is movably inserted into the L-shaped plate 308. A rotating handle 310 is fixedly connected to the top end of the adjusting column 309. A third spring 311 is sleeved on the adjusting column 309. The two ends of the third spring 311 are respectively fixedly connected to the bottom surface of the rotating handle 310 and the top surface of the L-shaped plate 308. A cam 312 is fixedly connected to the bottom end of the adjusting column 309. The cam 312 is clamped in one of the arc grooves 303.

[0036] Specifically, when it is necessary to adjust the position of the limiting plate 304, the rotating handle 310 is pulled to drive the adjusting column 309 to rotate. A third spring 311 is sleeved on the adjusting column 309. The third spring 311 is rotated by the rotation of the adjusting column 309. A cam 312 is fixedly connected to the bottom end of the adjusting column 309. The cam 312 is disengaged from the inside of the arc groove 303 by the rotation of the adjusting column 309. Then, the position of the limiting plate 304 is adjusted so that the clamping groove 305 on the limiting plate 304 is clamped on the control rods on both sides of the steering wheel, suitable for different models of vehicles.

[0037] As an implementation mode in this embodiment, the limiting component includes a sliding plate 4 slidably connected inside the movable slot 106. A socket 401 is fixedly installed at the top of the sliding plate 4. A plug connector 107 is detachably installed inside the socket 401. A storage rack 402 is fixedly connected to the middle position on one side of the socket 401. A movable rod 403 is movably inserted on the storage rack 402. One end of the movable rod 403 is fixedly connected to an adjusting head 404. A fourth spring 405 is sleeved on the movable rod 403. The two ends of the fourth spring 405 are respectively fixedly connected to one side of the adjusting head 404 and one side of the storage rack 402. One end of the movable rod 403 is fixedly connected to a clamping plate 406. A first linkage plate 407 is rotatably connected to the clamping plate 406. The other end of the first linkage plate 407 is rotatably connected to a linkage rod 408. One end of the linkage rod 408 is fixedly connected to the middle position of a second linkage plate 409. One end of the second linkage plate 409 is rotatably connected to a positioning post 410. The top of the positioning post 410 is fixedly connected to the bottom of the sliding plate 4. The other end of the second linkage plate 409 is fixedly connected to a clamping post 411. A pair of support plates 412 are fixedly connected inside the frame body 105. A number of limiting slots 413 are formed in the pair of support plates 412. The clamping post 411 is clamped inside one of the limiting slots 413.

[0038] Specifically, when it is necessary to adjust the front and rear positions of the voice control mechanism body 112, the adjusting head 404 is pushed. The pushing of the adjusting head 404 causes the movable rod 403 to slide on the storage rack 402. A clamping plate 406 is fixedly connected to one end of the movable rod 403. The movement of the movable rod 403 causes the clamping plate 406 to move. A first linkage plate 407 is rotatably connected to the clamping plate 406, and the other end of the first linkage plate 407 is rotatably connected to the linkage rod 408. One end of the linkage rod 408 is fixedly connected to the second linkage plate 409. The movement of the clamping plate 406 pushes the second linkage plate 409 on the linkage rod 408 to rotate on the positioning post 410 through the first linkage plate 407. A clamping post 411 is fixedly connected to the other end of the second linkage plate 409. The rotation of the second linkage plate 409 causes the clamping post 411 to disengage from the inside of the limiting slot 413, so as to facilitate the adjustment of the front and rear positions of the voice control mechanism body 112 according to the usage habits.

[0039] Working principle of the present invention: When it is necessary to adjust the angle of the positioning plate 103, the rod body 211 on the column head 210 is pulled upward. By pulling the rod body 211, the insertion rod 209 moves upward. The movement of the insertion rod 209 causes the bottom plate 212 to squeeze the second spring 213. Then, the engaging teeth 214 on the bottom surface of the bottom plate 212 will disengage from the inside of the toothed plate 215. Then, the cross plate 208 is pulled. By pulling the cross plate 208, the sleeve block 203 slides on the sliding rod 204. Then, the movement of the sleeve block 203 pulls the docking seat 102 on the positioning plate 103 to rotate on the sleeve 101 through the arc-shaped plate 201, thereby facilitating the adjustment of the angle of the positioning plate 103;

[0040] When it is necessary to adjust the position of the limit plate 304, the turning handle 310 is pulled to drive the adjusting column 309 to rotate. A third spring 311 is sleeved on the adjusting column 309. By rotating the adjusting column 309, the third spring 311 is rotated. A cam 312 is fixedly connected to the bottom end of the adjusting column 309. By rotating the adjusting column 309, the cam 312 disengages from the inside of the arc-shaped groove 303. Then, the position of the limit plate 304 is adjusted so that the card slot 305 on the limit plate 304 is clamped on the control rods on both sides of the steering wheel, suitable for different models of vehicles;

[0041] When it is necessary to adjust the front and rear positions of the voice control mechanism body 112, the adjusting head 404 is pushed. The pushing of the adjusting head 404 causes the movable rod 403 to slide on the storage rack 402. A clamping plate 406 is fixedly connected to one end of the movable rod 403. By moving the movable rod 403, the clamping plate 406 moves. A first linkage plate 407 is rotatably connected to the clamping plate 406, and the other end of the first linkage plate 407 is rotatably connected to the linkage rod 408. One end of the linkage rod 408 is fixedly connected to the second linkage plate 409. The movement of the clamping plate 406 pushes the second linkage plate 409 on the linkage rod 408 to rotate on the positioning column 410 through the first linkage plate 407. A clamping column 411 is fixedly connected to the other end of the second linkage plate 409. By rotating the second linkage plate 409, the clamping column 411 disengages from the inside of the limit groove 413, thereby facilitating the adjustment of the front and rear positions of the voice control mechanism body 112 according to the usage habits.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A voice control circuit and control method for a steering wheel, comprising a mounting plate (1), characterized in that: A sleeve (101) is fixedly connected to one side of the mounting plate (1), a docking seat (102) is rotatably connected to the sleeve (101), a positioning plate (103) is fixedly connected to the docking seat (102), a shaft sleeve (104) is rotatably connected to the positioning plate (103), a frame (105) is fixedly installed on the mounting plate (1), a movable groove (106) is provided on the frame (105), a plug connector (107) is provided on the frame (105), a positioning seat (108) is fixedly installed on the plug connector (107), a pair of first arm plates (109) are rotatably connected to the positioning seat (108), the other end of the pair of first arm plates (109) is rotatably connected to the second arm plate (110), and the other end of the second arm plate (110) is provided with a sound control mechanism body (112); It also comprises an adjustment component, a positioning component and a limit component, wherein the adjustment component is arranged on the mounting plate (1) for adjusting the angle of the positioning plate (103), the positioning component is arranged on the mounting plate (1) for coordinated use, and the limit component is arranged on the frame (105) for coordinated use.

2. The voice control circuit and control method for a steering wheel according to claim 1, characterized in that: The adjustment assembly comprises a pair of first hinge seats (2) fixedly mounted on the docking seat (102), an arc plate (201) being rotatably connected to the pair of first hinge seats (2), the other end of the arc plate (201) being rotatably connected to a second hinge seat (202), the second hinge seat (202) being fixedly connected to a sleeve block (203), the sleeve block (203) being slidably connected to a slide rod (204), one end of the slide rod (204) being fixedly connected to a bracket (205), the bracket (205) being fixedly connected to the mounting plate (1), and the other end of the slide rod (204) being fixedly connected to a retaining ring (206).

3. The voice control circuit and control method for a steering wheel according to claim 2, characterized in that: The sliding rod (204) is sleeved with a first spring (207), and two ends of the first spring (207) are respectively fixedly connected to one side of the sleeve block (203) and one side of the retaining ring (206).

4. The voice control circuit and control method for a steering wheel according to claim 3, characterized in that: A transverse plate (208) is fixedly connected to the inner side of the sleeve block (203); an insertion rod (209) is movably inserted in the middle of the transverse plate (208); a column head (210) is fixedly connected to the top of the insertion rod (209); a rod body (211) is fixedly connected to the surface of the column head (210); a bottom end of the insertion rod (209) is fixedly connected to a bottom plate (212); a second spring (213) is sleeved on the insertion rod (209); two ends of the second spring (213) are respectively fixedly connected to the bottom surface of the transverse plate (208) and the top surface of the bottom plate (212); a latching tooth (214) is fixedly connected to the bottom end of the bottom plate (212); the latching tooth (214) is latched on a tooth plate (215); and the tooth plate (215) is fixedly connected to the mounting plate (1).

5. The voice control circuit and control method for a steering wheel according to claim 2, characterized in that: The positioning assembly comprises a pair of slide grooves (3) provided on the mounting plate (1), a through groove (301) provided in the middle of the mounting plate (1), a side plate (302) fixedly connected to the top surface of the mounting plate (1) close to the through groove (301), an arc groove (303) provided on the side plate (302), a limit plate (304) provided on the bottom surface of the mounting plate (1), a clamping groove (305) provided on the limit plate (304), a slide column (306) fixedly connected to the limit plate (304), the slide column (306) slidably connected to the inside of the slide groove (3), and a collar (307) fixedly connected to the top of the slide column (306).

6. The voice control circuit and control method for a steering wheel according to claim 5, characterized in that: An L-shaped plate (308) is fixedly connected to the middle of the top surface of the limiting plate (304), and the L-shaped plate (308) is slidably connected to the inside of the through groove (301). An adjustment column (309) is movably inserted on the L-shaped plate (308), and a turning handle (310) is fixedly connected to the top of the adjustment column (309).

7. The voice control circuit and control method for a steering wheel according to claim 6, characterized in that: A third spring (311) is sleeved on the adjusting column (309), and two ends of the third spring (311) are respectively fixedly connected to the bottom surface of the turning handle (310) and the top surface of the L-shaped plate (308). The bottom end of the adjusting column (309) is fixedly connected to a cam (312), and the cam (312) is clamped inside one of the arc-shaped grooves (303).

8. The voice control circuit and control method for a steering wheel according to claim 2, characterized in that: The limiting assembly comprises a slide plate (4) slidably connected to the inside of the movable groove (106), a plug sleeve (401) is fixedly mounted on the top of the slide plate (4), and the plug connector (107) is detachably mounted inside the plug sleeve (401).

9. The voice control circuit and control method for a steering wheel according to claim 8, characterized in that: A storage rack (402) is fixedly connected to the middle position of one side of the insertion sleeve (401), a movable rod (403) is movably inserted on the storage rack (402), one end of the movable rod (403) is fixedly connected to an adjustment head (404), a fourth spring (405) is sleeved on the movable rod (403), two ends of the fourth spring (405) are respectively fixedly connected to one side of the adjustment head (404) and one side of the storage rack (402), and one end of the movable rod (403) is fixedly connected to a clamping plate (406).

10. The voice control circuit and control method for a steering wheel according to claim 9, characterized in that: The clamping plate (406) is rotatably connected to a first linkage plate (407), the other end of the first linkage plate (407) is rotatably connected to a linkage rod (408), one end of the linkage rod (408) is fixedly connected to the middle position of a second linkage plate (409), one end of the second linkage plate (409) is rotatably connected to a positioning column (410), the top end of the positioning column (410) is fixedly connected to the bottom position of the slide plate (4), the other end of the second linkage plate (409) is fixedly connected to a clamping column (411), a pair of supporting plates (412) are fixedly connected inside the frame (105), a plurality of groups of limiting grooves (413) are provided on the pair of supporting plates (412), and the clamping column (411) is clamped inside one of the limiting grooves (413).

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