CN202413704U - Steering wheel lock - Google Patents

Abstract

The utility model discloses a steering wheel lock, which comprises a pull rod, a baffle, a lock core, a positioning piece, a locking arm, a shell and other parts, wherein a pair of locking blocks with a straight arm and an arc arm are butted to form the locking arm; the baffle is pivoted on the straight arm part of the locking block; a straight arm of the locking arm is provided with a gear sleeve of a tooth-shaped locking groove, and the positioning piece is controlled by the lock cylinder and matched with the locking groove to shift or lock the locking arm; the shell is fixedly connected with the shifting rod, a pair of prying-resistant protruding angles extend from one end of the shell close to the shifting rod to the direction far away from the axis of the shifting rod, and the prying-resistant protruding angles are close to the free end of the locking arm. The anti-prying protruding angle can effectively prevent a prying bar from prying the anti-theft lock.

Description

steering wheel lock

technical field

The utility model relates to a lock, in particular to an anti-theft lock for locking a steering wheel. the

Background technique

Chinese patent ZL200920137687.8 discloses an automobile steering wheel lock, which consists of a fixed gear lever, a casing, a fixed bolt, a baffle plate pivoted on the fixed bolt and a lockset. The fixed bolt consists of a tightly fitted pivot and a rotating shaft The restricting part on the top and the arc-shaped button body which is arranged on both sides of the restricting part and rotates integrally with it are composed. There is a gear groove on the restricting part. The baffle plate is pivoted on the rotating shaft due to the restricting part. The restricting part is provided with a gear groove. . When in use, the curved button body is buckled on the turntable of the steering wheel, the gear lever is pressed between the instrument panel and the windshield, and the baffle is pressed on the horn in the center of the steering wheel. When using this steering wheel lock, if a thief covers the free end of the fixed bolt of the steering wheel lock with a crowbar, the anti-theft lock is easily destroyed and loses the anti-theft function. Using a key brings inconvenience to the user. the

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides a steering wheel lock, which can effectively prevent the use of a crowbar to pick the lock, and is easy to operate. the

In order to achieve the above object, the technical solution of the utility model is: a steering wheel lock, including a pull lever, a baffle, a lock cylinder, a positioning piece, a locking arm, a housing and other components, a pair of locking blocks with straight arms and arc arms The locking arm is formed by docking; the baffle is pivotally connected to the straight arm part of the locking block; the gear sleeve of the tooth-shaped locking groove is arranged on the straight arm of the locking arm, and the positioning part is controlled by the lock cylinder and cooperates with the locking groove to adjust the locking arm. gear or locking; the shell is fixedly connected with the driving lever, and a pair of anti-pry protruding angles are extended in the direction away from the axis of the pulling lever at the end of the shell close to the driving lever, and the anti-prying protruding angles are close to the free end of the locking arm. The anti-pry protruding corner can effectively prevent the pry bar from prying the anti-theft lock. the

As an improvement of the utility model, the two locking blocks are butted on the butt joint surface in the way of tenon and tenon. The structure of mortise and tenon can strengthen the connection between the locking blocks and better prevent the crowbar from breaking the anti-theft lock. the

As an improvement of the utility model, the baffle plate is adsorbed on the driving rod through a magnet, and the operation is simple and convenient during use. the

As another improvement of the utility model, the positioning member is provided with a groove, and the height of the groove is greater than the height of the lock tongue. When the lock tongue is inserted into the groove, the lock tongue and the inner wall of the groove are displaced by the locking member. The gap in the direction is greater than the depth of the toothed groove. The lower end of the locking piece is a wedge-shaped protrusion with a vertical surface and an inclined surface. The protrusion matches the toothed groove on the gear sleeve and makes the free end of the locking arm It can only be turned in the direction close to the lever. When the lock cylinder is in the locked state, the deadbolt is inserted into the groove to press the positioning piece on the toothed groove of the gear sleeve; when the lock cylinder is in the fully open state, The lock cylinder pushes up the locating piece so that the locating piece breaks away from the toothed groove of the shift sleeve, and the locking arm can rotate freely; when the lock cylinder is in a half-open state, the dead bolt is located in the middle of the groove. This scheme makes the free end of the locking arm of the anti-theft lock only move in the direction of the lever when shifting gears, and the lock is in a locked state when shifting gears. The gear position, no key is needed for the next lock, and the anti-theft lock can also be locked by adjusting the gear position. the

In order to make the steering wheel lock of the present utility model suitable for steering wheels of various specifications, the baffle is provided with an adjusting device that can set the maximum extension angle of the baffle. the

Description of drawings

Fig. 1 is the exploded schematic view of the utility model;

Fig. 2 is the schematic diagram after the utility model is assembled;

Fig. 3 is the schematic diagram that the utility model prevents the crowbar from picking the lock;

Figures 4a, 4b, and 4c are schematic diagrams of the lock cylinder being in the locked position, the unlocked position and the shifting position respectively;

Fig. 5 is a schematic diagram of setting the maximum extension angle of the baffle of the present invention. the

specific embodiment

Embodiment of the utility model is described below in conjunction with accompanying drawing. In the figure, housing 1, shift lever 2, return spring 3, positioning member 4, shift member 5, lock core 6, locking block 1 7, locking block 2 8, fixing pin 9, baffle plate 10, adjusting bolt 11, lock Tongue 12, bending portion 13, anti-prying angle 14, crowbar 15. the

See Figure 1. Steering wheel lock of the present utility model mainly is made up of parts such as lock housing 1, driving lever 2, baffle plate 10, locking arm, lock core 6, dead bolt 12. Wherein, a pair of straight arms and arc-shaped arms are connected to form a symmetrically shaped locking block one 7 and locking block two 8 butt each other to form a locking arm, and one end of the arc-shaped arm is the free end of the locking arm. In a preferred embodiment, the locking blocks 7 and 8 are a pair of mortise and mortise and mortise and tenon that match each other in size and shape at the joint, and the tenon and mortise and tenon joint can enhance the strength of the locking arm. On the straight arm part of the locking arm, an annular shifting member 5 with a plurality of shifting grooves is sleeved, and the shifting member 5 is fixed on the straight arm through a fixing pin 9 and rotates integrally with the locking arm. A groove is provided on the positioning member 4, and one end thereof is a wedge-shaped protrusion with a straight plane and an inclined plane. The wedge-shaped protrusion cooperates with the gear slot on the gear position member to realize unlocking, locking and shifting of the lockset. A spring 3 for resetting the positioning member 4 is installed on the end opposite to the wedge-shaped protruding point on the positioning member 4. Two mounting holes are provided at the lower end of the housing 1, and the straight arm of the locking arm passes through the two mounting holes. The housing 1 will Components such as the positioning piece 4 and the locking cylinder are contained therein. the

Fig. 2 is a schematic diagram of the assembled steering wheel lock of the present invention. The shell 1 is fixedly connected with the lever 2, and the shell 1 has a pair of anti-prying angles extending away from the axis of the pulling lever at one end close to the lever 2, and the anti-prying angles are close to the free end of the locking arm. Fig. 3 is a schematic diagram of the utility model anti-prying. , when a crowbar is used to cover the free end of the locking arm and the free end of the locking arm is forcibly turned counterclockwise (the direction in which the arc-shaped arm separates from the hub of the steering wheel), the anti-prying protrusion can effectively prevent the locking arm from rotating, so The anti-theft performance of the lock is improved. The mortise and mortise joint structure of locking block 1 7 and locking block 2 8 enhances the strength of the locking arm. When using a crowbar to pick the lock, the lock is less likely to be damaged.

Fig. 4a, Fig. 4b and Fig. 4c are structural schematic diagrams of the lock cylinder 6 in three states of unlocking, locking and shifting respectively. In the figure, the lock tongue 12 of the lock cylinder is inserted into the groove of the positioning member 4, and the groove is surrounded by an upper top surface, a lower bottom surface and a side vertical surface. After the deadbolt is inserted into the groove, the gap between the deadbolt and the groove in the direction of the lower bottom surface and the upper top surface is greater than the depth of the gear groove on the gear member 5 . In a preferred embodiment of the present utility model, the dead bolt 12 on the lock cylinder has three working positions: a locking position, an unlocking position, and a shifting position. In the locked position, the lock tongue 12 on the lock cylinder is inserted into the groove of the locating piece 4 and is tangent to the lower bottom surface, thereby locking the wedge-shaped protruding tip of the locating piece 4 in the gear slot of the gear piece 5, at this moment, the locking arm It is locked and cannot be turned. In the unlocked position, the dead bolt 12 of the lock cylinder is tangent to the upper top surface of the groove of the positioning part 4, and the wedge-shaped protruding point of the positioning part 4 is separated from the gear slot of the gear position part 5. At this time, the locking arm can be rotated clockwise. Rotate 360 degrees, you can also rotate 360 degrees counterclockwise; in the shift position, the lock tongue 12 of the lock cylinder is located in the middle of the groove of the positioning part 4, and the wedge-shaped protruding point of the positioning part 4 is on the return spring 3 located at the top of the positioning part 4 It is located in the shift groove of the shift member 5 under the pressure. After the tongue is inserted into the groove, the gap between the lock tongue and the groove in the direction of the lower bottom surface and the upper top surface is greater than the depth of the shift groove on the shift member 5. At this time, the locking arm can rotate counterclockwise (that is, the free end of the locking arm rotates toward the direction of pulling out the rod), but cannot rotate clockwise. When the wedge-shaped protrusions are located in different gear grooves, the locking arm has different gear positions. When the lock tongue is shifted to the shift position, because the locking arm can only rotate in the direction of the pull rod, the shift position can also realize the locking function, that is, after the key turns the dead bolt to the shift position, even if the key is pulled out, and The locking operation can be completed by turning the locking arm in the locking direction, which makes the locking operation very convenient. the

Referring to Fig. 1, the baffle plate 10 of the present embodiment is fixed on an annular spacer sleeve, the spacer sleeve is pivotally connected on the straight arm of the locking arm, the baffle plate 10 can pivot around the straight arm part of the locking arm, and the baffle plate 10 The plate 10 is made of iron material, and a magnet is set on the lever. In the non-operating state, the baffle 10 is adsorbed on the lever 2 through the magnet; when it needs to be used, it is only necessary to pull the baffle 10 by hand without using it. The key is very convenient to operate. the

In order to adapt to steering wheels of different specifications, the preferred solution of the utility model is provided with a structure for adjusting the maximum extension angle of the baffle. Referring to FIG. 1 and FIG. 5 , the adjustment structure includes a locking bolt 11 installed inside the housing 1 and a bent portion 13 extending from one end of the baffle plate 10 , and the bent portion 13 is fixed on the annular limiting sleeve. Before use, the adjusting bolt is adjusted to a certain proper position. When the baffle 10 is stretched, the bent portion 13 is blocked by the bolt 11 so that the baffle 10 has a maximum extension angle. When the adjusting bolt 11 is adjusted at different heights, the baffle plate 10 has different maximum extension angles, so as to adapt to the use of steering wheels of different specifications. the

When in use, first rotate the bolt to adjust its position, so that the maximum extension angle of the baffle can be adjusted to match the position and size of the steering wheel. Use the key to adjust the lock cylinder 6 to the unlocked position, rotate the locking arm and clamp its arc-shaped arm on the turntable of the steering wheel, put the bezel 10 against the center of the steering wheel, and push the lever 2 between the instrument panel and the windshield. Adjust the key to the lock cylinder 6 to the shifting position, adjust the locking arm to match the position of the steering wheel, and then adjust the key to the locking position to lock the anti-theft lock. Of course, if the lock cylinder is already in the shift position before use, the arc arm is stuck behind the steering wheel, and the arc arm is rotated in the direction of the pull bar, or the anti-theft lock can be locked by the shift position without using the key. the

Claims (7)

1. handle lock; Comprise parts such as shell (1), dead man (2), baffle plate (10), lock core (6), locations (4), lock arm, it is characterized in that: described lock arm is made up of a pair of locking block one (7), locking block two (8) butt joints with straight-arm and arched arm; Described baffle plate (10) is articulated in the straight-arm part of locking block; A gear spare (5) that is provided with the profile of tooth lock slots is fixed on the described straight-arm, and with the lock arm unitary rotation; Described locations (4) cooperates by lock core (6) control and with lock slots transfers the files or locks lock arm; Shell (1) is captiveed joint with described driving lever (2), and shell (1) extends a pair of pick-proof coign (14) at the end near driving lever on the direction away from the dead man axis, and described pick-proof coign (14) is near the free end of lock arm.

2. handle lock according to claim 1 is characterized in that: said baffle plate is adsorbed on the described dead man (2) through magnet.

3. handle lock according to claim 1 and 2; It is characterized in that: described locations (4) is provided with groove; The height of groove is greater than the height of dead bolt (12); After dead bolt (12) inserted said groove, dead bolt and the gap of groove inwall on the locking piece sense of displacement were greater than the degree of depth of described serrate slot, and the lower end of locking piece (4) is the prominent point of wedge shape that has vertical surface and inclined-plane; Should prominent point match and merge the free end that makes lock arm and can only rotate to direction near driving lever (2) with serrate slot on the gear spare

When lock core was in locking states, dead bolt inserted described groove the prominent point of the wedge shape of locations (4) is pressed on the serrate slot of gear spare (5);

When lock core was in full-gear, lock core made locations (4) break away from the serrate slot of gear spare (5) locations jack-up, and lock arm can rotate freely;

When lock core was in half-open position, dead bolt was positioned at the middle part of described groove.

4. handle lock according to claim 3 is characterized in that: described two locking blocks one (7), locking block two (8) are in the connection mode butt joint of interface with tenon and tongue-and-groove.

5. handle lock according to claim 1 and 2 is characterized in that: described two locking blocks one (7), locking block two (8) are in the connection mode butt joint of interface with tenon and tongue-and-groove.

6. bearing circle according to claim 4 is characterized in that: said baffle plate is provided with the control apparatus that can set baffle plate (10) maximum extension angle.

7. handle lock according to claim 6; It is characterized in that: described control apparatus comprises that baffle plate (10) is from forming near the extended bending part of an end (13) of shell (1) and the adjusting bolt (11) that is positioned at housing; When baffle plate (10) extended to the maximum angle of setting, described adjusting bolt (11) withstood the bending part (13) of baffle plate.

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