Automobile steering wheel lock

Abstract

The utility model discloses an automobile steering wheel lock which comprises a limiting rod, a first clamping portion and a second clamping portion, the first clamping portion is fixedly arranged at one end of the limiting rod, the first clamping portion is provided with a locking mechanism and an alarm box, the locking mechanism comprises a lock cylinder and a lock pin controlled by the lock cylinder to move, and the alarm box is arranged on the lock pin. The second clamping part is provided with a lock rod and two guide rods which are arranged in parallel, the two guide rods are arranged on the two sides of the lock rod respectively, the first clamping part is provided with a first through hole and a guide hole which correspond to the lock rod and the guide rods respectively, the free end of the lock rod penetrates through the first through hole and extends into the limiting rod, and the free end of the guide rod penetrates through the second through hole and extends into the limiting rod. The guide rod is connected with the guide hole in a sliding mode, the lock rod is provided with ratchets matched with the lock pin, and a gap is kept between the lock rod and the inner side wall of the first through hole. Due to the fact that the guide rods are arranged on the two sides of the lock rod, the gap can be kept between the lock rod and the inner side wall of the first through hole, the situation of jamming or unsmooth movement is avoided, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lock technology field, concretely relates to a car steering wheel lock. BACKGROUND

[0002] The steering wheel lock is a kind of automobile antitheft tool, it is generally by spacing rod and clamping part is constituted, when using, it is clamped on the rim of steering wheel by clamping part, spacing rod extends to the outside of steering wheel, to limit steering wheel rotation, to reach the effect of theft prevention.The clamping part of the existing steering wheel lock usually includes the first clamping part fixed on the spacing rod and the second clamping part movably arranged on the first clamping part, the second clamping part is movably connected with the first clamping part by lock bar, since the lock bar is provided with ratchet, in actual use, it is prone to jam or not smooth, affect user experience. UTILITY MODEL CONTENTS

[0003] The utility model provides a kind of car steering wheel lock to the lack of prior art, it can avoid the situation that steering wheel lock is jammed when using, improve the smoothness of lock use, improve user experience.

[0004] To achieve the above object, the utility model adopts following technical scheme:

[0005] A kind of car steering wheel lock, including spacing rod, first clamping part and second clamping part, the first clamping part is fixed at one end of spacing rod, the first clamping part is equipped with locking mechanism and alarm box, the locking mechanism includes lock cylinder and lock pin controlled by lock cylinder, the second clamping part is equipped with parallelly arranged lock bar and guide rod, the guide rod is equipped with two, two guide rods are respectively arranged on the two sides of lock bar, the first clamping part is equipped with the first through-hole and guide hole corresponding with lock bar and guide rod respectively, the free end of lock bar passes through first through-hole and extends into spacing rod, the guide rod is slidably connected with guide hole, the lock bar is equipped with ratchet matched with lock pin, the lock bar and the inner side wall of first through-hole keep gap.This utility model is equipped with guide rod on the two sides of lock bar, so that when installing second clamping part, the lock bar and the inner side wall of first through-hole keep gap, so as to avoid the situation that lock bar ratchet and first through-hole side wall rub and cause jam or not smooth, improve user experience;By setting alarm box, automatic alarm function can be realized when lock is damaged, to deter the thief, further improve the theftproofness.

[0006] As a preferred technical scheme, the first clamping part has a first clamping body and a first clamping clip formed on the first clamping body, the second clamping part has a second clamping body and a second clamping clip formed on the second clamping body, the locking mechanism and the alarm box are arranged on the first clamping body, and the lock bar and the guide rod are arranged on the second clamping body.

[0007] As a preferred technical scheme, the first clamping body is provided with a first mounting groove and a second mounting groove, the first through hole and the guide hole are arranged on the first clamping body and are in communication with the first mounting groove, the connecting portion corresponding to the first mounting groove is arranged on the limiting rod, the connecting portion is provided with the first fixing hole, the second mounting groove is provided with the second through hole communicated with the first mounting groove, the opening of the second mounting groove is provided with the cover plate, the cover plate is provided with the connecting plate extending into the second mounting groove, the connecting plate is provided with the second fixing hole, the first clamping surface of the first clamping body is provided with the third through hole penetrating into the second mounting groove, during assembly, the connecting portion is inserted into the first mounting groove, the first screw is screwed through the second through hole and the first fixing hole to fix the first clamping portion on the limiting rod, the alarm box is installed in the second mounting groove and is blocked outside the first screw, and the second screw is screwed through the third through hole and the second fixing hole to fix the cover plate at the opening of the second mounting groove. Through the above design, the second screw is blocked by the rim of the steering wheel in the locked state, so that the thief cannot damage the lock by removing the screw, and the anti-theft performance of the lock is improved.

[0008] As a preferred technical scheme, the first clamping body is further provided with a third mounting groove, the second mounting groove is provided with the fourth mounting groove connected with the first through hole, during assembly, the lock core is fixedly installed in the third mounting groove, and the lock pin is movably installed in the fourth mounting groove, and the fourth mounting groove is provided with the first reset spring enabling the lock pin to always have a tendency to extend into the first through hole.

[0009] As a preferred technical scheme, the alarm box is further provided with a control circuit board, a loudspeaker, a vibration sensor, a magnetic induction switch and a battery, the magnetic induction switch, the loudspeaker, the vibration sensor and the battery are electrically connected with the control circuit board, one end of the lock core is provided with a rotating seat for controlling the movement of the lock pin, and the rotating seat is provided with a magnet matched with the magnetic induction switch.

[0010] As a preferred technical scheme, the first clamping body is provided with a charging interface for charging the battery, and a waterproof cover is arranged at the charging interface.

[0011] As a preferred technical scheme, the rotating seat is provided with a mounting hole on the circumferential side, the magnet is fixedly arranged in the mounting hole, the end face of the rotating seat is fixedly provided with a push block, the lock pin is provided with a sliding groove corresponding to the push block, the push block extends into the sliding groove and can control the movement of the lock pin in the fourth mounting groove, when locking, the push block enables the lock pin to extend into the first through hole and abut against the ratchet on the lock rod, and at this time, the magnetic induction switch is closest to the magnet.

[0012] As a preferred technical scheme, the limiting rod is provided with the second reset spring enabling the second clamping portion to always have a tendency to move away from the first clamping portion.

[0013] As a preferred technical scheme, the lock rod is provided with a spring positioning rod at one end away from the second clamping part, the spring positioning rod is provided with a first baffle at the connection position with the lock rod, the limiting rod is fixedly provided with a second baffle, the second baffle is provided with a fourth through hole for the spring positioning rod to pass through, and the second reset spring is sleeved outside the spring positioning rod and abuts against the first baffle and the second baffle at two ends during assembly.

[0014] As a preferred technical scheme, the lock rod is provided with a spring positioning rod at one end away from the second clamping part, the spring positioning rod is provided with a first baffle at the connection position with the lock rod, the limiting rod is fixedly provided with a second baffle, the second baffle is provided with a fourth through hole for the spring positioning rod to pass through, and the second reset spring is sleeved outside the spring positioning rod and abuts against the first baffle and the second baffle at two ends during assembly.

[0015] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically, the guide rod is arranged on the both sides of the lock rod, so that the lock rod and the inner side wall of the first through hole can keep a gap during installation of the second clamping part, so as to avoid the situation that the ratchet on the lock rod is stuck or not smoothly moved due to friction with the side wall of the first through hole, and the use experience of the user is improved, the alarm box is arranged, so that the automatic alarm function can be realized when the lock is damaged, the thief is intimidated, and the anti-theft property is further improved.

[0016] In order to more clearly illustrate the structural features, technical means and specific purposes and functions of the utility model, the utility model will be further described in detail below in combination with the drawings and specific embodiments: BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the assembly structure diagram of the embodiment of the utility model;

[0018] Figure 2 is the preliminary exploded structure schematic view of the embodiment of the utility model;

[0019] Figure 3 is the installation structure exploded view of the first clamping part of the embodiment of the utility model;

[0020] Figure 4 is Figure 3 the enlarged schematic view of A in the figure;

[0021] Figure 5 is the structure schematic view of the first clamping part of the embodiment of the utility model;

[0022] Figure 6 is the installation structure exploded view of the spring positioning rod of the embodiment of the utility model.

[0023] EXPLANATION OF FIGURE MARKS:

[0024] 10, limiting rod 11, connecting part 12, first fixing hole

[0025] 13, second reset spring 14, second baffle 141, fourth through hole

[0026] 20, first clamping part 21, first clamping body 22, first clamping

[0027] 23, first through hole 24, guide hole 25, first mounting groove

[0028] 26, second mounting groove 261, second through hole 262, fourth mounting groove

[0029] 263, charging interface 264, waterproof cover 27, third mounting groove

[0030] 28, third through hole 30, second clamping part 31, second clamping body

[0031] 32, second clamping 33, lock rod 331, ratchet

[0032] 332, connecting hole 34, guide rod 35, spring positioning rod

[0033] 351, connecting column 36, first baffle 361, fifth through hole

[0034] 40, locking mechanism 41, lock cylinder 42, lock pin

[0035] 43, rotating seat 44, magnet 45, push block

[0036] 46, sliding groove 47, mounting hole 48, first reset spring

[0037] 50, alarm box 51, cover plate 52, connecting plate

[0038] 53, second fixing hole 60, first screw 70, second screw. DETAILED DESCRIPTION

[0039] In the description of the utility model, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Please refer to Figures 1-6 As shown, a car steering wheel lock of this utility model includes a limiting rod 10, a first clamping part 20, and a second clamping part 30. The first clamping part 20 is fixedly disposed at one end of the limiting rod 10. The first clamping part 20 is provided with a locking mechanism 40 and an alarm box 50. The locking mechanism 40 includes a lock cylinder 41 and a locking pin 42 whose movement is controlled by the lock cylinder 41. The second clamping part 30 is provided with a locking rod 33 and a guide rod 34 arranged in parallel. There are two guide rods 34, which are respectively disposed on both sides of the locking rod 33. The first clamping part 20 is provided with a first through hole 23 and a guide hole 24 corresponding to the locking rod 33 and the guide rod 34, respectively. The free end of the locking rod 33 passes through the first through hole 23 and extends into the limiting rod 10. The guide rod 34 is slidably connected to the guide hole 24. The locking rod 33 is provided with a ratchet 331 that cooperates with the locking pin 42. The locking rod 33 maintains a gap with the inner wall of the first through hole 23. This invention utilizes guide rods 34 on both sides of the locking rod 33 to maintain a gap between the locking rod 33 and the inner wall of the first through hole 23 when the second clamping part 30 is installed. This prevents the ratchet teeth 331 on the locking rod 33 from getting stuck or causing obstructed movement due to friction with the side wall of the first through hole 23, thus improving the user experience. Furthermore, the inclusion of an alarm box 50 enables an automatic alarm function when the lock is damaged, deterring thieves and further enhancing its anti-theft capabilities. In this embodiment, both the locking rod 33 and the first through hole 23 have square cross-sections.

[0042] In this utility model, the first clamping part 20 has a first clamping body 21 and a first clamping clip 22 formed on the first clamping body 21, the second clamping part 30 has a second clamping body 31 and a second clamping clip 32 formed on the second clamping body 31, the locking mechanism 40 and the alarm box 50 are disposed on the first clamping body 21, and the locking rod 33 and the guide rod 34 are disposed on the second clamping body 31. When locked, a clamping groove adapted to the wheel rim of the steering wheel is formed between the first clamping clip 22 and the second clamping clip 32.

[0043] Specifically, the first clamping body 21 has a first mounting groove 25 and a second mounting groove 26. The first through hole 23 and the guide hole 24 are provided on the first clamping body 21 and are both connected to the first mounting groove 25. The limiting rod 10 has a connecting part 11 corresponding to the first mounting groove 25. The connecting part 11 has a first fixing hole 12. The second mounting groove 26 has a second through hole 261 communicating with the first mounting groove 25. The opening of the second mounting groove 26 has a cover plate 51. The cover plate 51 has a connecting plate 52 extending into the second mounting groove 26. The plate 52 is provided with a second fixing hole 53. The first clamp 22 has a third through hole 28 on the side facing the second clamp 32, which extends into the second mounting groove 26. During assembly, the connecting part 11 is inserted into the first mounting groove 25, and the first screw 60 passes through the second through hole 261 and is threadedly connected to the first fixing hole 12 to fix the first clamping part 20 onto the limiting rod 10. The alarm box 50 is installed in the second mounting groove 26 and blocks the outside of the first screw 60. The second screw 70 passes through the third through hole 28 and is threadedly connected to the second fixing hole 53 to fix the cover plate 51 at the opening of the second mounting groove 26. By adopting the above design, the second screw 70 is blocked by the steering wheel rim in the locked state, preventing thieves from damaging the lock by removing the screw, thus improving the anti-theft performance of the lock.

[0044] Specifically, the first clamping body 21 is also provided with a third mounting groove 27, and the second mounting groove 26 is provided with a fourth mounting groove 262 that communicates with the first through hole 23. During assembly, the lock cylinder 41 is fixedly installed in the third mounting groove 27, and the locking pin 42 is movably installed in the fourth mounting groove 262. The fourth mounting groove 262 is provided with a first return spring 48 that makes the locking pin 42 always tend to extend into the first through hole 23. The second mounting groove 26 is provided with a pin hole (not shown) that communicates with the third mounting groove 27, and the pin hole is provided with a pin (not shown) to prevent the lock cylinder 41 from falling out of the third mounting groove 27. In this utility model, the opening direction of the first mounting groove 25 is parallel to the extension direction of the locking rod 33, and the opening directions of the first mounting groove 25, the second mounting groove 26, and the third mounting groove 27 are perpendicular to each other.

[0045] Specifically, the alarm box 50 also includes a control circuit board, a horn, a vibration sensor, a magnetic induction switch, and a battery. The magnetic induction switch, horn, vibration sensor, and battery are all electrically connected to the control circuit board. One end of the lock cylinder 41 has a rotating seat 43 for controlling the movement of the locking pin 42. The rotating seat 43 has a magnet 44 that cooperates with the magnetic induction switch. The first clamp 21 has a charging interface 263 for charging the battery, and a waterproof cover 264 is provided at the charging interface 263.

[0046] Specifically, the rotating base 43 is provided with mounting holes 47 on its periphery, the magnet 44 is fixedly installed in the mounting holes 47, the end face of the rotating base 43 is fixedly provided with a lever 45, the locking pin 42 is provided with a sliding groove 46 corresponding to the lever 45, the lever 45 extends into the sliding groove 46 and can control the locking pin 42 to move in the fourth mounting groove 262. In this utility model, the lock cylinder 41 is a lock cylinder that is easily conceived by those skilled in the art, and its specific structure and working principle will not be described in detail here. The control circuit board adopts a commercially available circuit board, which contains a control circuit and a magnetic induction circuit. When locking, the key is inserted into the key hole of the lock cylinder 41, and the key causes the rotating seat 43 to rotate. The lever 45 causes the locking pin 42 to extend into the first through hole 23 and abut against the ratchet 331 on the locking rod 33. At this time, the magnetic induction switch is closest to the magnet 44, and the magnetic induction circuit is turned on. When a thief damages the steering wheel lock, the vibration sensor detects a continuous vibration signal and controls the horn to sound an alarm through the control circuit board. When unlocking, the key causes the rotating seat 43 to rotate, and the lever 45 causes the locking pin 42 to move away from the ratchet 331 on the locking rod 33. At this time, the magnetic induction switch is furthest from the magnet 44, the magnetic induction circuit is disconnected, the control circuit board stops working, and the horn is in standby mode.

[0047] In this invention, the limiting rod 10 is provided with a second return spring 13 that ensures the second clamping part 30 always tends to move away from the first clamping part 20. Specifically, the end of the locking rod 33 away from the second clamping part 30 is provided with a spring positioning rod 35. A first baffle 36 is provided at the connection between the spring positioning rod 35 and the locking rod 33. A second baffle 14 is fixedly provided inside the limiting rod 10. The second baffle 14 has a fourth through hole 141 through which the spring positioning rod 35 passes. During assembly, the second return spring 13 is sleeved on the outside of the spring positioning rod 35, and its two ends abut against the first baffle 36 and the second baffle 14, respectively. The end of the spring positioning rod 35 away from the locking rod 33 is conical, allowing the spring positioning rod 35 to pass better through the fourth through hole 141 of the second baffle 14. The first baffle 36 also prevents the locking rod 33 from being pushed out of the first through hole 23 in the unlocked state.

[0048] Specifically, the locking rod 33 has a connecting hole 332 at one end away from the second clamping part 30, and the spring positioning rod 35 has a connecting post 351 corresponding to the connecting hole 332 at one end. The first baffle 36 has a fifth through hole 361 through which the connecting post 351 passes. During assembly, the connecting post 351 passes through the fifth through hole 361 and is fixedly connected to the connecting hole 332. The first baffle 36 is clamped between the spring positioning rod 35 and the locking rod 33. It should be understood that the connecting post 351 and the connecting hole 332 can be threaded or tightly fitted.

[0049] In summary, this utility model, by providing guide rods on both sides of the locking rod, maintains a gap between the locking rod and the inner wall of the first through hole when installing the second clamping part. This avoids jamming or obstructed movement caused by friction between the ratchet teeth on the locking rod and the side wall of the first through hole, thus improving the user experience. Furthermore, by incorporating an alarm box, an automatic alarm function is activated when the lock is damaged, deterring thieves and further enhancing its anti-theft capabilities.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A car steering wheel lock, characterized in that, The device includes a limiting rod, a first clamping part, and a second clamping part. The first clamping part is fixedly disposed at one end of the limiting rod. The first clamping part is provided with a locking mechanism and an alarm box. The locking mechanism includes a lock cylinder and a locking pin controlled by the lock cylinder. The second clamping part is provided with a locking rod and a guide rod arranged in parallel. There are two guide rods, which are respectively disposed on both sides of the locking rod. The first clamping part is provided with a first through hole and a guide hole corresponding to the locking rod and the guide rod, respectively. The free end of the locking rod passes through the first through hole and extends into the limiting rod. The guide rod is slidably connected to the guide hole. The locking rod is provided with a ratchet that cooperates with the locking pin. The locking rod maintains a gap with the inner wall of the first through hole.

2. A car steering wheel lock according to claim 1, characterized in that, The first clamping part has a first clamping body and a first clamp formed on the first clamping body, the second clamping part has a second clamping body and a second clamp formed on the second clamping body, the locking mechanism and the alarm box are disposed on the first clamping body, and the locking rod and the guide rod are disposed on the second clamping body. When locked, a clamping groove that is adapted to the wheel rim of the steering wheel is formed between the first clamp and the second clamp.

3. A car steering wheel lock according to claim 2, characterized in that, The first clamp has a first mounting groove and a second mounting groove. The first through hole and the guide hole are located on the first clamp and are both connected to the first mounting groove. The limiting rod has a connecting part corresponding to the first mounting groove. The connecting part has a first fixing hole. The second mounting groove has a second through hole that connects to the first mounting groove. The opening of the second mounting groove has a cover plate. The cover plate has a connecting plate that extends into the second mounting groove. The connecting plate has a second fixing hole. The side of the first clamp facing the second clamp has a third through hole that extends into the second mounting groove. During assembly, the connecting part is inserted into the first mounting groove. The first screw passes through the second through hole and is threaded to the first fixing hole to fix the first clamping part to the limiting rod. The alarm box is installed in the second mounting groove and is blocked outside the first screw. The second screw passes through the third through hole and is threaded to the second fixing hole to fix the cover plate at the opening of the second mounting groove.

4. A car steering wheel lock according to claim 3, characterized in that, The first clamp is also provided with a third mounting groove, and the second mounting groove is provided with a fourth mounting groove that is connected to the first through hole. During assembly, the lock cylinder is fixedly installed in the third mounting groove, and the lock pin is movably installed in the fourth mounting groove. The fourth mounting groove is provided with a first return spring that makes the lock pin always tend to extend into the first through hole.

5. A car steering wheel lock according to claim 3, characterized in that, The alarm box also contains a control circuit board, a horn, a vibration sensor, a magnetic induction switch, and a battery. The magnetic induction switch, horn, vibration sensor, and battery are all electrically connected to the control circuit board. One end of the lock cylinder is provided with a rotating seat for controlling the movement of the lock pin. The rotating seat is provided with a magnet that cooperates with the magnetic induction switch.

6. A car steering wheel lock according to claim 5, characterized in that, The first clamp is provided with a charging interface for charging the battery, and the charging interface is provided with a waterproof cover.

7. A car steering wheel lock according to claim 5, characterized in that, The rotating base has mounting holes on its periphery, and the magnet is fixedly installed in the mounting holes. A lever is fixedly installed on the end face of the rotating base. The locking pin has a sliding groove corresponding to the lever. The lever extends into the sliding groove and can control the locking pin to move in the fourth mounting groove. When locking, the lever causes the locking pin to extend into the first through hole and abut against the ratchet on the locking rod. At this time, the magnetic induction switch is closest to the magnet.

8. A car steering wheel lock according to claim 1, characterized in that, The limiting rod is equipped with a second return spring that ensures the second clamping part always tends to move away from the first clamping part.

9. A car steering wheel lock according to claim 8, characterized in that, A spring positioning rod is provided at the end of the locking rod away from the second clamping part. A first baffle is provided at the connection between the spring positioning rod and the locking rod. A second baffle is fixedly provided inside the limiting rod. The second baffle has a fourth through hole for the spring positioning rod to pass through. During assembly, the second return spring is sleeved on the outside of the spring positioning rod, and its two ends abut against the first baffle and the second baffle respectively.

10. A car steering wheel lock according to claim 9, characterized in that, The locking rod has a connecting hole at one end away from the second clamping part, and the spring positioning rod has a connecting post at one end corresponding to the connecting hole. The first baffle has a fifth through hole for the connecting post to pass through. During assembly, the connecting post passes through the fifth through hole and is fixedly connected to the connecting hole. The first baffle is clamped between the spring positioning rod and the locking rod.

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