Steering column lock and steering column anti-theft device

Abstract

This invention belongs to the field of automotive steering technology and discloses a steering column lock and a steering column anti-theft device, including a lock body assembly. A drive assembly is installed on the outer wall of the lock body assembly, and a locking assembly is installed on the inner wall of the drive assembly. The drive assembly includes a fixed ring, and two fixed ears are fixedly connected to the outer circumference of the fixed ring. A fixed plate is fixedly connected to the top of the fixed ring, and a drive motor is fixedly connected to the outer wall of the fixed plate. In this invention, by setting a locking assembly, the locking assembly includes multiple locking teeth. After the multiple locking teeth are engaged in the lock hole, multiple locking points are formed. These locking points work together on the steering column, improving the stability and reliability of locking. Multiple locking teeth participate in the locking process at the same time, and the wear is evenly distributed on each locking tooth, rather than concentrated on a single locking tooth. This can extend the overall service life of the locking assembly and prevent the situation where the locking effect decreases or fails due to excessive wear of a single locking tooth.

Description

Technical Field

[0001] This invention relates to the field of automotive steering, and more specifically, to a steering column lock and a steering column anti-theft device. Background Technology

[0002] Steering column lock is an anti-theft feature of automobiles. Its function is to generate a detection signal through the key switch module when the car key or portable device is inserted or removed. The owner authentication module then verifies the legitimacy of the key or portable device based on this signal. Once the verification is successful or the key is removed, the locking plate will physically restrict the rotation of the steering shaft, thereby preventing the vehicle from being stolen.

[0003] In existing technologies, such as the document with announcement number CN218367711U, a specific locking structure for automotive mechanical steering column is disclosed. The device in that document uses: "a servo motor drives a gear to rotate, the gear meshes with a transmission gear ring, the gear ring drives a rotating drum and an electric locking box to rotate, until the locking block in the electric locking box corresponds to the locking groove, and a spring pushes out the locking block to insert into the locking groove." Although the above device can lock the steering column, the locking block is a single structure, which will wear out over time, easily leading to a decrease in locking effect or failure. In addition, the single locking block has low stability after locking. In view of this, we propose a steering column lock and a steering column anti-theft device. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a steering column lock and a steering column anti-theft device, which forms multiple locking points by setting multiple locking teeth that engage with the lock holes, thereby improving the stability and reliability of locking. At the same time, it can extend the overall service life of the locking components and prevent the situation where the locking effect decreases or fails due to excessive wear of a single locking tooth.

[0005] To solve the above-mentioned technical problems, the present invention proposes the following technical solution: a steering column lock, including a lock body assembly, including a lock sleeve, wherein the inner wall of the lock sleeve is provided with a plurality of guide holes;

[0006] The locking assembly includes a rotating ring and multiple fork arms, the same number as the compression plates;

[0007] Multiple first protrusions are fixedly connected to the top of the rotating ring. Each first protrusion has an extrusion plate fixedly connected to its outer wall. An arc surface is opened on one side of the extrusion plate. Each extrusion plate has a second protrusion fixedly connected to its end. Each second protrusion has an inclined support plate fixedly connected to its outer wall. The ends of the inclined support plates are fixedly connected to the corresponding extrusion plates.

[0008] Each fork arm has a second rotating shaft fixedly connected to its inner wall, and rollers are rotatably connected to the outer wall of each second rotating shaft. Each fork arm end is fixedly connected to a connecting rod, and a third spring is sleeved on the outer wall of each connecting rod. A locking tooth is slidably connected to the end of the connecting rod, and the end of the locking tooth is slidably connected to the inner wall of the guide hole. A sliding cavity is opened in the inner wall of the locking tooth, and the end of the connecting rod extends into the sliding cavity. A second spring is sleeved on the inner wall of the sliding cavity, and a sliding sleeve is slidably connected to the inner wall of the sliding cavity. The end of the connecting rod is fixedly connected to the inner wall of the sliding sleeve.

[0009] Preferably, one end of the second spring is fixedly connected to the inner wall of the locking tooth, the other end of the second spring is fixedly connected to the sliding sleeve, one end of the third spring is fixedly connected to the locking tooth, and the other end of the third spring is fixedly connected to the fork arm.

[0010] Preferably, the steering column lock further includes a drive assembly, which includes a fixed ring, two fixed ears fixedly connected to the outer wall of the fixed ring, the outer wall of the lock sleeve rotatably connected to the fixed ring, a fixed plate fixedly connected to the top of the fixed ring, a drive motor fixedly connected to the outer wall of the fixed plate, a drive shaft fixedly connected to the output end of the drive motor, the bottom of the drive shaft passing through the fixed ring and rotatably connected to it, a first ring rotatably connected to the outer wall of the drive shaft, and multiple first protruding teeth fixedly connected to the outer wall of the first ring.

[0011] Preferably, the drive assembly further includes an output shaft, a third gear is fixedly connected to the outer wall of the output shaft, a first gear is fixedly connected to the outer wall of the drive shaft, the first gear meshes with the third gear, a second gear is rotatably connected to the outer wall of the drive shaft, a second collar is rotatably connected to the outer wall of the output shaft, and a plurality of second protruding teeth are fixedly connected to the outer wall of the second collar.

[0012] Preferably, the inner walls of the first and second rings are provided with multiple grooves, which are semi-circular in structure. Multiple mounting sleeves are fixedly connected to the outer walls of the drive shaft and the output shaft. A first spring is fitted on the inner wall of each mounting sleeve. A pressure plate is slidably connected to the inner wall of each mounting sleeve. A protruding rod is fixedly connected to the end of each pressure plate. The end of each protruding rod passes through the mounting sleeve and is slidably connected to it. The arc end of the protruding rod engages with the corresponding groove.

[0013] Preferably, one end of the first spring abuts against the inner wall of the mounting sleeve, and the other end of the first spring abuts against the end of the pressure plate.

[0014] Preferably, the inner wall of the lock sleeve has a first mounting groove, the lock sleeve is located in the first mounting groove and is rotatably connected to the inner wall of the lock sleeve, the inner wall of the lock sleeve has a second mounting groove, and a second gear ring is rotatably connected to the inner wall of the second mounting groove; the bottom of the second protrusion is fixedly connected to the second gear ring, the outer wall of the lock sleeve has a connecting hole, a sealing cover is fixedly connected to the outer wall of the lock sleeve, a connecting ring is fixedly connected to the top of the sealing cover, a first gear ring is fixedly connected to the outer wall of the connecting ring, the first gear ring meshes with the first protrusion tooth, and the second gear ring meshes with the second gear.

[0015] Preferably, each fork arm is provided with a guide plate above it. Both ends of the guide plate are fixedly connected to the inner wall of the lock sleeve. Each guide plate has a sliding hole at its top. A first sliding rod is fixedly connected to the inner wall of each sliding hole. A fourth spring is sleeved on the outer wall of each first sliding rod. A slider is sleeved on the outer wall of each first sliding rod. One end of the fourth spring is fixedly connected to the guide plate, and the other end of the fourth spring is fixedly connected to the slider. A third rotating shaft is rotatably connected to the bottom of each slider. The bottom of the third rotating shaft is rotatably connected to the corresponding fork arm. Both ends of the second rotating shaft extend to the outer wall of the fork arm. An extension shaft is rotatably connected to the end of the second rotating shaft. A connecting arm is rotatably connected to the outer wall of the extension shaft. The middle section of the connecting arm is bent to form a semi-circular groove. A bushing is fixedly connected to the bottom of the connecting arm. A first rotating shaft is rotatably connected to the inner wall of the bushing. The bottom of the first rotating shaft passes through the corresponding inclined support plate and is rotatably connected to it. A fourth rotating shaft is rotatably connected to the top of each connecting arm.

[0016] Preferably, each of the fourth rotating shafts has a threaded hole at its top, and a second slide rod is inserted into the inner wall of each of the fourth rotating shafts. The ends of the second slide rods pass through the corresponding third rotating shafts and are slidably connected to them. A fifth spring is sleeved on the outer wall of each second slide rod, and a screw is threaded into the inner wall of each threaded hole. The screw passes through the second slide rod and extends below it. One end of the fifth spring is fixedly connected to the third rotating shaft, and the other end of the fifth spring is fixedly connected to the fourth rotating shaft.

[0017] Preferably, a steering column anti-theft device includes an anti-theft component, which includes a steering column. A locking pin is fixedly connected to the outer wall of the steering column. The outer wall of the locking pin has multiple locking holes. The locking pin engages with locking teeth through the locking holes. Two protruding rings are fixedly connected to the outer wall of the locking pin. The two protruding rings are rotatably connected to a lock sleeve.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By setting a locking assembly, which includes multiple locking teeth, multiple locking points are formed after the locking teeth engage with the lock hole. These locking points work together on the steering column, improving the stability and reliability of locking. With multiple locking teeth participating in the locking process at the same time, wear is evenly distributed on each locking tooth, rather than concentrated on a single locking tooth. This can extend the overall service life of the locking assembly and prevent the locking effect from decreasing or failing due to excessive wear of a single locking tooth, thus improving the stability after locking.

[0020] 2. When the guide hole and the lock hole do not correspond, the structure can quickly find the corresponding lock hole by adjusting the internal mechanism. This is mainly due to the slip design of the convex rod inside the second ring and the characteristic that the second gear ring rotates faster than the first gear ring, which allows the lock teeth to flexibly adjust their position and thus achieve quick locking. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a partial structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the driving component of the present invention;

[0025] Figure 4 This is a partial structural diagram of the driving component of the present invention;

[0026] Figure 5 This is a schematic diagram of the installation structure of the mounting sleeve of the present invention;

[0027] Figure 6 This is a schematic diagram of the mounting structure of the protruding rod of the present invention;

[0028] Figure 7 This is a schematic diagram of the overall structure of the lock body assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the installation structure of the sealing cap of the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of the lock sleeve of the present invention;

[0031] Figure 10 This is a schematic diagram of the overall structure of the locking assembly of the present invention;

[0032] Figure 11 This is a schematic diagram of the installation structure of the extrusion plate of the present invention;

[0033] Figure 12 This is a schematic diagram of the internal structure of the locking teeth of the present invention;

[0034] Figure 13 This is a schematic diagram of the overall structure of the extrusion plate of the present invention;

[0035] Figure 14 This is a schematic diagram of the installation structure of the second slide bar of the present invention;

[0036] Figure 15 This is a schematic diagram of the overall structure of the anti-theft component of the present invention.

[0037] Explanation of the numbers in the diagram: 1. Drive assembly; 101. Retaining ring; 102. Retaining ear; 103. Retaining plate; 104. Drive motor; 105. Drive shaft; 106. First collar; 107. First tooth; 108. First gear; 109. Second gear; 110. Output shaft; 111. Third gear; 112. Second collar; 113. Second tooth; 114. Groove; 115. Mounting sleeve; 116. Protruding rod; 117. Pressure plate; 118. First spring; 2. Lock body assembly; 201. Lock sleeve; 202. First mounting groove; 203. Second mounting groove; 204. Guide hole; 205. Connecting hole; 206. Sealing cover; 207. Connecting ring; 208. First gear ring; 209. Second gear ring; 3. Locking assembly; 301. Rotating ring; 302. 303. First protrusion; 304. Second protrusion; 305. Extrusion plate; 306. Arc surface; 307. Inclined support plate; 308. First rotating shaft; 309. Bushing; 310. Connecting arm; 311. Fork arm; 312. Second rotating shaft; 313. Roller; 314. Extension shaft; 315. Locking tooth; 316. Sliding cavity; 317. Second spring; 318. Sliding sleeve; 319. Connecting rod; 320. Third spring; 321. Guide plate; 322. Sliding hole; 323. First sliding rod; 324. Fourth spring; 325. Sliding block; 326. Third rotating shaft; 327. Second sliding rod; 328. Fifth spring; 329. Fourth rotating shaft; 330. Threaded hole; 4. Screw; 4. Anti-theft component; 401. Steering column; 402. Locking column; 403. Protruding ring; 404. Lock hole. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] Example 1:

[0040] like Figure 1 , Figure 2 and Figures 7-9 As shown, a steering column lock includes a lock body assembly 2, which includes a lock sleeve 201. The outer wall of the lock sleeve 201 is rotatably connected to the inner wall of the fixing ring 101. The inner wall of the lock sleeve 201 has a first mounting groove 202 and a plurality of guide holes 204.

[0041] The outer wall of the lock sleeve 201 has a connecting hole 205. A sealing cover 206 is fixedly connected to the outer wall of the lock sleeve 201. A connecting ring 207 is fixedly connected to the top of the sealing cover 206. A first gear ring 208 is fixedly connected to the outer wall of the connecting ring 207. The first gear ring 208 meshes with the first convex tooth 107. A second mounting groove 203 is opened on the inner wall of the lock sleeve 201. A second gear ring 209 is rotatably connected to the inner wall of the second mounting groove 203. The second gear ring 209 meshes with the second gear 109.

[0042] Example 2:

[0043] This embodiment provides a steering column lock, which, based on Embodiment 1, further includes the following structure:

[0044] like Figures 1-6 As shown, a drive assembly 1 is mounted on the outer wall of the lock body assembly 2. The drive assembly 1 includes a fixed ring 101, with two fixed ears 102 fixedly connected to the outer wall of the fixed ring 101. The fixed ring 101 is fixed to the corresponding structure of the car through the fixed ears 102. A fixed plate 103 is fixedly connected to the top of the fixed ring 101. A drive motor 104 is fixedly connected to the outer wall of the fixed plate 103. A drive shaft 105 is fixedly connected to the output end of the drive motor 104. The bottom of the drive shaft 105 passes through the fixed ring 101 and is rotatably connected to it. A first ring 106 is rotatably connected to the outer wall of the drive shaft 105. Multiple first teeth 107 are fixedly connected to the outer wall of the first ring 106. The drive assembly 1 also includes an output shaft 110. A third gear 111 is fixedly connected to the outer wall of the output shaft 110. A first gear 108 is fixedly connected to the outer wall of the drive shaft 105. The first gear 108 meshes with the third gear 111. The drive shaft 105 is rotatably connected to a second gear 109 on its outer wall, and the output shaft 110 is rotatably connected to a second collar 112 on its outer wall. The outer wall of the second collar 112 is fixedly connected to multiple second protruding teeth 113. The inner walls of the first collar 106 and the second collar 112 are provided with multiple grooves 114, which are semi-circular in structure. The outer walls of the drive shaft 105 and the output shaft 110 are fixedly connected to multiple mounting sleeves 115. The inner walls of the mounting sleeves 115 are each fitted with a first spring 118. The inner walls of the mounting sleeves 115 are each slidably connected to a pressure plate 117. The ends of the pressure plates 117 are each fixedly connected to a protruding rod 116. The ends of the protruding rods 116 pass through the mounting sleeves 115 and are slidably connected to them. The arc ends of the protruding rods 116 are respectively engaged with the corresponding grooves 114. One end of the first spring 118 abuts against the inner wall of the mounting sleeve 115, and the other end of the first spring 118 abuts against the end of the pressure plate 117.

[0045] Example 3:

[0046] This embodiment provides a steering column lock, which, based on Embodiment 2, also includes the following structure:

[0047] like Figure 1 , Figure 2 and Figures 10-14 As shown, a locking assembly 3 is installed on the inner wall of the drive assembly 1. The locking assembly 3 includes a rotating ring 301, which is located in the first mounting groove 202. The rotating ring 301 is rotatably connected to the inner wall of the lock sleeve 201. A plurality of first protrusions 302 are fixedly connected to the top of the rotating ring 301. A pressing plate 304 is fixedly connected to the outer wall of each of the first protrusions 302. An arc surface 305 is provided on one side of the pressing plate 304. A second protrusion 303 is fixedly connected to the end of each of the pressing plates 304. The bottom of each second protrusion 303 is fixedly connected to a second toothed ring 209. An inclined support plate 306 is fixedly connected to the outer wall of each second protrusion 303. The ends of the inclined support plates 306 are fixedly connected to the corresponding pressing plates 304.

[0048] Locking assembly 3 also includes multiple fork arms 310, the same number as the pressing plate 304. A second rotating shaft 311 is fixedly connected to the inner wall of each fork arm 310. Rollers 312 are rotatably connected to the outer wall of each second rotating shaft 311. Connecting rods 318 are fixedly connected to the ends of each fork arm 310. Third springs 319 are sleeved on the outer walls of each connecting rod 318. Locking teeth 314 are slidably connected to the ends of the connecting rods 318. The ends of the locking teeth 314 are slidably connected to the inner wall of the guide hole 204. A sliding cavity is formed in the inner wall of the locking teeth 314. 315, the end of the connecting rod 318 extends into the sliding cavity 315, the inner wall of the sliding cavity 315 is fitted with a second spring 316, the inner wall of the sliding cavity 315 is slidably connected with a sliding sleeve 317, the end of the connecting rod 318 is fixedly connected to the inner wall of the sliding sleeve 317, one end of the second spring 316 is fixedly connected to the inner wall of the locking tooth 314, the other end of the second spring 316 is fixedly connected to the sliding sleeve 317, one end of the third spring 319 is fixedly connected to the locking tooth 314, and the other end of the third spring 319 is fixedly connected to the fork arm 310.

[0049] Each fork arm 310 is provided with a guide plate 320. Both ends of the guide plate 320 are fixedly connected to the inner wall of the lock sleeve 201. Each guide plate 320 has a sliding hole 321 at the top. Each sliding hole 321 has a first sliding rod 322 fixedly connected to the inner wall of the sliding hole 321. Each first sliding rod 322 has a fourth spring 323 sleeved on the outer wall of the first sliding rod 322. Each first sliding rod 322 has a slider 324 sleeved on the outer wall of the first sliding rod 322. Each slider 324 has a third rotating shaft 325 rotatably connected to the bottom of the slider 324. The bottom of the third rotating shaft 325 is rotatably connected to the corresponding fork arm 310. One end of the fourth spring 323 is fixedly connected to the guide plate 322, and the other end of the fourth spring 323 is fixedly connected to the slider 324.

[0050] The second rotating shaft 311 extends to the outer wall of the fork arm 310 at both ends. An extension shaft 313 is rotatably connected to each end of the second rotating shaft 311. A connecting arm 309 is rotatably connected to the outer wall of each extension shaft 313. The middle section of the connecting arm 309 is bent to form a semi-circular groove. A bushing 308 is fixedly connected to the bottom of the connecting arm 309. A first rotating shaft 307 is rotatably connected to the inner wall of the bushing 308. The bottom of the first rotating shaft 307 passes through and is rotatably connected to the corresponding inclined support plate 306. A fourth rotating shaft 328 is rotatably connected to the top of each connecting arm 309. Each of the four rotating shafts 328 has a threaded hole 329 at its top. A second slide rod 326 is inserted into the inner wall of each of the four rotating shafts 328. The ends of the second slide rods 326 pass through the corresponding third rotating shafts 325 and are slidably connected to them. A fifth spring 327 is fitted onto the outer wall of each of the second slide rods 326. A screw 330 is threaded into the inner wall of each of the threaded holes 329. The screw 330 passes through the second slide rod 326 and extends below it. One end of the fifth spring 327 is fixedly connected to the third rotating shaft 325, and the other end of the fifth spring 327 is fixedly connected to the fourth rotating shaft 328.

[0051] Example 4:

[0052] This embodiment provides a steering column anti-theft device, which, based on Embodiment 3, also includes the following structure:

[0053] like Figure 1 , Figure 2 and Figure 15 As shown, a steering column anti-theft device includes an anti-theft component 4, which includes a steering column 401. A locking pin 402 is fixedly connected to the outer wall of the steering column 401. The outer wall of the locking pin 402 has multiple locking holes 404. The locking pin 402 engages with locking teeth 314 through the locking holes 404. Two protruding rings 403 are fixedly connected to the outer wall of the locking pin 402. The two protruding rings 403 are rotatably connected to the lock sleeve 201 respectively.

[0054] Working principle: The drive motor 104 drives the drive shaft 105 to rotate, which in turn drives the mounting sleeve 115 inside the first collar 106 to rotate. Under the elastic force of the first spring 118, the arc end of the protrusion 116 is stuck in the corresponding groove 114 inside the first collar 106, so that the drive shaft 105 can drive the first collar 106 to rotate through the protrusion 116. The first collar 106 drives the first gear ring 208 to rotate through the first tooth 107, which in turn drives the locking sleeve 201 and the sealing cover 206 to rotate. The locking sleeve 201 drives the locking assembly 3 to rotate, thereby changing the orientation of the multiple locking teeth 314.

[0055] When the drive shaft 105 rotates, it drives the first gear 108 to rotate. The first gear 108 drives the third gear 111 to rotate. The third gear 111 drives the output shaft 110 to rotate. The output shaft 110 drives multiple second teeth 113 to rotate through the protrusion 116 inside the second collar 112. The second teeth 113 drive the second gear 109 to rotate. When the second gear 109 rotates, it drives the second gear ring 209 to rotate. The rotation speed of the second gear ring 209 is faster than the speed of the first gear ring 208.

[0056] When the second gear ring 209 rotates, it drives multiple second protrusions 303 to rotate. The second protrusions 303 drive the first protrusions 302 to rotate via the extrusion plate 304. The first protrusions 302 drive the rotating ring 301 to rotate. When the extrusion plate 304 rotates, it extrudes the roller 312 inside the fork arm 310. The fork arm 310 drives the slider 324 to slide along the first slide rod 322 via the third rotating shaft 325, and compresses the fourth spring 323. When the fork arm 310 moves, it drives the connecting... The connecting rod 318 moves, which pushes the second spring 316 to move. The second spring 316 pushes the locking tooth 314 to move. When the guide hole 204 corresponds to the lock hole 404, the locking tooth 314 can directly engage in the lock hole 404, thereby fixing the lock post 402 and locking the steering post 401. After locking, the protruding rod 116 inside the first collar 106 will rotate out from the groove 114, causing slippage, thus preventing the first protruding tooth 107 from rotating.

[0057] When the guide hole 204 does not correspond to the lock hole 404, the connecting rod 318 compresses the second spring 316 by pushing the sliding sleeve 317. At this time, the end of the moving locking tooth 314 abuts against the outer wall of the lock column 402, and the pressing plate 304 completely presses the roller 312. The slider 324 slides to the end of the sliding hole 321 and cannot move. At this time, the protrusion 116 inside the second collar 112 slips, so the drive shaft 105 can drive the first gear ring 208 to rotate through the first protrusion 107, so that the position of the locking tooth 314 can continue to change, so that the end of the locking tooth 314 can quickly find the corresponding lock hole 404. Under the elastic force of the second spring 316, the locking tooth 314 can be inserted into the lock hole 404, thereby locking the steering column 401 and realizing anti-theft.

[0058] When the extrusion plate 304 rotates, it drives the inclined support plate 306 to rotate. The inclined support plate 306 drives the connecting arm 309 to rotate through the first rotating shaft 307. The connecting arm 309 pushes the second rotating shaft 311 to rotate through the extension shaft 313. At the same time, the connecting arm 309 drives the second sliding rod 326 to rotate through the fourth rotating shaft 328. Meanwhile, the second sliding rod 326 slides along the inner wall of the third rotating shaft 325, which can compress the fifth spring 327.

[0059] During unlocking, the drive motor 104 drives the drive shaft 105 to rotate in the opposite direction. At this time, the locking tooth 314 is stuck in the lock hole 404, causing the protrusion 116 inside the first ring 106 to slip. The second protrusion 113 drives the second gear 109 to rotate, which in turn drives the second gear ring 209 to rotate in the opposite direction. The second gear ring 209 then drives multiple pressing plates 304 to rotate in the opposite direction. At this time, under the elastic force of the fourth spring 323 and the fifth spring 327, the slider 324 slides in the opposite direction along the first sliding rod 322, and the second sliding rod 326 slides in the opposite direction along the inner wall of the third rotating shaft 325. This allows the fork arm 310 to move in the opposite direction. When the pressing plate 304 rotates in the opposite direction, the connecting arm 309 also drives the fork arm 310 to move in the opposite direction, thus removing the locking tooth 314 from the lock hole 404 and completing the unlocking process.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steering column lock, characterized in that, include: The lock body assembly (2) includes a lock sleeve (201), and the inner wall of the lock sleeve (201) is provided with a plurality of guide holes (204). Locking assembly (3) includes: A rotating ring (301) has multiple first protrusions (302) fixedly connected to its top. Each first protrusion (302) has an extrusion plate (304) fixedly connected to its outer wall. An arc surface (305) is opened on one side of the extrusion plate (304). Each end of the extrusion plate (304) has a second protrusion (303) fixedly connected to its end. Each second protrusion (303) has an inclined support plate (306) fixedly connected to its outer wall. The ends of the inclined support plates (306) are fixedly connected to the corresponding extrusion plates (304). The fork arm (310) has a second rotating shaft (311) fixedly connected to its inner wall. The outer wall of the second rotating shaft (311) is rotatably connected to a roller (312). The end of the fork arm (310) is fixedly connected to a connecting rod (318). The outer wall of the connecting rod (318) is fitted with a third spring (319). The end of the connecting rod (318) is slidably connected to a locking tooth (314). The end of the locking tooth (314) is slidably connected to the inner wall of the guide hole (204). The inner wall of the locking tooth (314) is provided with a sliding cavity (315). The end of the connecting rod (318) extends into the sliding cavity (315). The inner wall of the sliding cavity (315) is fitted with a second spring (316). The inner wall of the sliding cavity (315) is slidably connected to a sliding sleeve (317). The end of the connecting rod (318) is fixedly connected to the inner wall of the sliding sleeve (317). Each of the fork arms (310) is provided with a guide plate (320). Both ends of the guide plate (320) are fixedly connected to the inner wall of the lock sleeve (201). Each guide plate (320) has a sliding hole (321) at the top. A first sliding rod (322) is fixedly connected to the inner wall of each sliding hole (321). A fourth spring (323) is sleeved on the outer wall of each first sliding rod (322). A slider (324) is sleeved on the outer wall of each first sliding rod (322). One end of the fourth spring (323) is fixedly connected to the guide plate (320), and the other end of the fourth spring (323) is fixedly connected to the slider (324). A third rotating shaft (325) is rotatably connected to the bottom of each slider (324). 325) The bottom is rotatably connected to the corresponding fork arm (310). The two ends of the second rotating shaft (311) extend to the outer wall of the fork arm (310). The ends of the second rotating shaft (311) are rotatably connected to the extension shaft (313). The outer wall of the extension shaft (313) is rotatably connected to the connecting arm (309). The middle section of the connecting arm (309) is bent to form a semi-circular groove. The bottom of the connecting arm (309) is fixedly connected to the bushing (308). The inner wall of the bushing (308) is rotatably connected to the first rotating shaft (307). The bottom of the first rotating shaft (307) passes through the corresponding inclined support plate (306) and is rotatably connected to it. The top of the connecting arm (309) is rotatably connected to the fourth rotating shaft (328).

2. The steering column lock according to claim 1, characterized in that: One end of the second spring (316) is fixedly connected to the inner wall of the locking tooth (314), and the other end of the second spring (316) is fixedly connected to the sliding sleeve (317). One end of the third spring (319) is fixedly connected to the locking tooth (314), and the other end of the third spring (319) is fixedly connected to the fork arm (310).

3. The steering column lock according to claim 2, characterized in that: It also includes a drive assembly (1), which includes a fixed ring (101), two fixed ears (102) are fixedly connected to the outer wall of the fixed ring (101), the outer wall of the locking sleeve (201) is rotatably connected to the fixed ring (101), a fixed plate (103) is fixedly connected to the top of the fixed ring (101), a drive motor (104) is fixedly connected to the outer wall of the fixed plate (103), a drive shaft (105) is fixedly connected to the output end of the drive motor (104), the bottom of the drive shaft (105) passes through the fixed ring (101) and is rotatably connected to it, a first sleeve ring (106) is rotatably connected to the outer wall of the drive shaft (105), and a plurality of first protruding teeth (107) are fixedly connected to the outer wall of the first sleeve ring (106).

4. The steering column lock according to claim 3, characterized in that: The drive assembly (1) further includes an output shaft (110), a third gear (111) is fixedly connected to the outer wall of the output shaft (110), a first gear (108) is fixedly connected to the outer wall of the drive shaft (105), the first gear (108) meshes with the third gear (111), a second gear (109) is rotatably connected to the outer wall of the drive shaft (105), a second collar (112) is rotatably connected to the outer wall of the output shaft (110), and a plurality of second protruding teeth (113) are fixedly connected to the outer wall of the second collar (112).

5. The steering column lock according to claim 4, characterized in that: The inner walls of the first ring (106) and the second ring (112) are provided with multiple grooves (114). The grooves (114) are semi-circular structures. Multiple mounting sleeves (115) are fixedly connected to the outer walls of the drive shaft (105) and the output shaft (110). The inner walls of the mounting sleeves (115) are all fitted with first springs (118). The inner walls of the mounting sleeves (115) are all slidably connected with pressure plates (117). The ends of the pressure plates (117) are all fixedly connected with protruding rods (116). The ends of the protruding rods (116) all penetrate the mounting sleeves (115) and are slidably connected to them. The arc ends of the protruding rods (116) are respectively engaged with the corresponding grooves (114).

6. The steering column lock according to claim 5, characterized in that: One end of the first spring (118) abuts against the inner wall of the mounting sleeve (115), and the other end of the first spring (118) abuts against the end of the pressure plate (117).

7. The steering column lock according to claim 6, characterized in that: The inner wall of the lock sleeve (201) is provided with a first mounting groove (202), the lock sleeve (201) is located in the first mounting groove (202) and is rotatably connected to the inner wall of the lock sleeve (201), the inner wall of the lock sleeve (201) is provided with a second mounting groove (203), and a second toothed ring (209) is rotatably connected to the inner wall of the second mounting groove (203). The bottom of the second protrusion (303) is fixedly connected to the second gear ring (209). The outer wall of the lock sleeve (201) is provided with a connecting hole (205). The outer wall of the lock sleeve (201) is fixedly connected with a sealing cover (206). The top of the sealing cover (206) is fixedly connected with a connecting ring (207). The outer wall of the connecting ring (207) is fixedly connected with a first gear ring (208). The first gear ring (208) meshes with the first protruding tooth (107). The second gear ring (209) meshes with the second gear (109).

8. The steering column lock according to claim 7, characterized in that: The top of each of the fourth rotating shafts (328) is provided with a threaded hole (329). A second slide rod (326) is inserted into the inner wall of each of the fourth rotating shafts (328). The ends of the second slide rods (326) pass through the corresponding third rotating shafts (325) and are slidably connected to them. A fifth spring (327) is sleeved on the outer wall of each of the second slide rods (326). A screw (330) is threaded into the inner wall of each of the threaded holes (329). The screw (330) passes through the second slide rod (326) and extends to its lower part. One end of the fifth spring (327) is fixedly connected to the third rotating shaft (325), and the other end of the fifth spring (327) is fixedly connected to the fourth rotating shaft (328).

9. A steering column anti-theft device, applicable to the steering column lock of claim 8, characterized in that: The anti-theft component (4) includes a steering column (401), a lock column (402) is fixedly connected to the outer wall of the steering column (401), and a plurality of lock holes (404) are opened on the outer wall of the lock column (402). The lock column (402) is engaged with the lock teeth (314) through the lock holes (404). Two protruding rings (403) are fixedly connected to the outer wall of the lock column (402), and the two protruding rings (403) are rotatably connected to the lock sleeve (201) respectively.

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