RU146008U1 - LOCK FOR VEHICLE STEERING SHAFT - Google Patents

Abstract

The utility model relates to security equipment, to mechanical anti-theft devices, and specifically to a lock for the steering shaft of vehicles. The lock contains a detachable sleeve (1) and a locking rod element (5). The coupling (1) consists of two interconnected coupling halves (2) and (3), made with the possibility of grasping the locked steering shaft. In the first coupling half (2), a T-shaped groove (6) and a radial hole (7) are made. Along the perimeter of the connection surface of the coupling halves (2) and (3) in the first coupling half (2) there are bumps (8) protruding relative to the specified coupling surface, and in the second coupling half (3) there are recesses (9) corresponding to the specified bumpers (8). In the cavity of the blocking element (5), a cylinder locking mechanism (16) and a spring-loaded valve (11) connected with it are installed. In this case, the blocking element (5) is provided with protrusions made along its side surfaces and is fixed on the first coupling half (2) when these protrusions are placed in its T-groove (6) and the spring-loaded valve (11) is placed in its radial hole (7) ) The technical result is an increase in the degree of protection of the castle from breaking. 6 c.p. f-ly, 3 ill.

Description

The utility model relates to security equipment, to mechanical anti-theft devices, and specifically to a lock for locking the steering shaft of vehicles.

The lock of the anti-theft device is known from the prior art (see RF patent for invention 2296068, published 03/27/2007; IPC B60K 25/02), comprising a detachable case consisting of two parts enclosing a lockable element (half-couplings) connected by screws, the heads of which are recessed in one part of the housing and are protected from unscrewing by a removable bolt, fixed in the T-groove of the housing with a spring-loaded latch, on the side of which there is a recess located in the recess of the bolt and in the reciprocal recess made m on the housing, the walls of which are perpendicular to the plane of contact of the bolt with the housing, and in the bolt a longitudinal hole intersecting with the recess for the latch is made, in which the mechanism for withdrawing the latch from the recess in the housing with a security element containing a cylinder locking device with a key is located, and on the outside the side of the body facing the bolt from the input side into the T-groove has an entry chamfer. The mechanism for removing the latch from the recess in the housing is made in the form of a crank shaft, one end interconnected with a cylinder locking device, and a spike located at the other end, interacting with the recess on the side of the latch. In the extreme position of the spike closest to the body, the gap between the spike and the wall of the recess on the latch on the side of the body is less than the protrusion of the latch from the bolt; the crank shaft is equipped with two balls, spring-loaded with each other and installed in the diameter hole.

The known device has insufficient reliability from breaking, since it is possible to cut the fixing screws through the gap between the coupling halves enclosing the blocking element by introducing the tool between them from the end surface side. In addition, in a known lock, the design of the latch can make it difficult to close the lock, since jamming can occur when the locking element moves into the groove of the upper sleeve when the latch contacts its side surface.

The objective of the claimed utility model is to eliminate the aforementioned disadvantages of the analogue.

The technical result of the utility model is to increase the degree of protection of the castle from breaking.

The specified technical result is achieved due to the fact that the lock for the vehicle’s steering shaft contains a detachable coupling, consisting of two interconnected half-couplings, made with the possibility of grasping the locked steering shaft, while in the first half-coupling there is a T-shaped groove and a radial hole, and along the perimeter of the surface of the coupling half of the coupling in the first coupling half there are bumps protruding relative to the specified coupling surface, and in the second coupling half there are recesses corresponding to the indicated boards cam or between the coupling coupling surfaces and stir at least one flat insert with the formation of a groove (corresponding to the indicated sides; and a rod blocking element in the cavity of which a cylinder locking mechanism and a spring-loaded valve connected with it are installed, while the blocking element is provided with protrusions made along its lateral surfaces, and is fixed on the first coupling half when these protrusions are placed in its T-groove and the spring-loaded gate valve is placed in its radial hole .

In addition, the specified technical result is achieved due to the fact that:

- the coupling halves are interconnected by screws, the heads of which are recessed into the first coupling half and are protected from being unscrewed by the adjacent surface of the blocking element,

- the insert is mounted on the second coupling half,

- the insert is not fixed to the second coupling half,

- the valve is equipped with a chamfer,

- the locking mechanism is connected to the valve through the control pin located in the recess of the valve,

- the locking mechanism is closed by a cover placed on the side of the end surface of the blocking element.

Unlike the analogue in which at the edges of the coupling halves the protective edges and the corresponding recesses are made only from the side of the side surfaces, in the claimed utility model, these elements are made around the entire perimeter of the coupling. Thus, on the contact surface of the two coupling halves in the installed state there is no access to the fastening screws, which increases the degree of protection of the lock from breaking.

Thanks to the entry chamfer, the valve enters the blocking element gently, without jerking and difficulty. When closing the lock, reaching the mating hole for the valve in the upper coupling half, it falls into this hole.

The utility model is illustrated by drawings, where:

in FIG. 1 shows a longitudinal section of the claimed castle,

in FIG. 2 - shows a General view of the first and second coupling halves,

in FIG. 3 - shows the holder of the locking element.

The following describes the preferred design of the proposed castle.

The lock contains a detachable bracket - a coupling (1), covering the steering shaft of the vehicle (not shown) and consisting of the first (2) (upper) and second (3) (lower) half-couplings asymmetric relative to each other. The coupling halves (2) and (3) are interconnected by screws (4), the heads of which are recessed into the upper coupling half 2 and are protected from being unscrewed by the adjacent surface of the blocking element (5). In the first coupling half (2), a T-shaped groove (6) is made, extending substantially parallel to the coupling coupling surface, as well as a radial hole (7).

In order to protect the lock from breaking along the perimeter of the connection (contact) surface of the coupling halves (2) and (3) (i.e. from the side of its side and end surfaces), the sides (8) protruding relative to the indicated surface are made in the first coupling half (2) coupling halves, and in the second coupling half (3), recesses (9) corresponding to the beads (8) of the upper coupling half. With this design, the possibility of unlocking the lock by sawing the fixing screws 4 through the slot between the coupling halves covering the steering shaft (2) and (3) is prevented, which can be implemented in the closest analogue, since the protective sides and recesses mentioned therein are made only from the side coupling surfaces.

In the claimed device between the surfaces of the connection of the coupling halves (2) and (3) at least one flat insert (10) is mixed with the formation of a groove corresponding to the specified sides (see Fig. 2).

The inserts (10) can be made in one piece with the second coupling half (3) (Fig. 2a), fastened to it with screws (Fig. 2b) or be separate elements not directly fixed on the surface in contact with the second coupling half (3) (Fig. 3c) ) The coupling halves 2 and 3 are made of high strength and hard material, for example structural carbon steel subjected to heat treatment (surface hardening).

The blocking element (5) is made essentially in the form of a hollow rod with a conical tip. A valve (11) is mounted in the cavity of the blocking element, mounted on a guide (12) and spring-loaded with a spring (13) located in the spring holder (14). In this case, the valve is placed in the side hole of the blocking element (5) and protrudes relative to its side surface. The valve (11) is actuated by a control pin (15), which enters the recess on the valve (11) and is fixed on the cylinder locking mechanism (16), closed by the cover (17) of the locking mechanism, from the side of the end of the locking element (5). The locking mechanism (16) is controlled by a removable key (18).

On the side surfaces of the blocking element (5), protrusions are made (not shown in the drawings) for fixing it on the first coupling half (2) when these protrusions are placed in its T-shaped groove. The valve (11) is placed in the radial hole (7) of the first coupling half (2). At the same time, an input chamfer (19) (bevel) is made on the valve (11), which facilitates the movement of the blocking element in the groove (6) of the first coupling half (2).

The claimed lock is additionally equipped with a holder 20, which is attached to the plastic elements of the vehicle skin with screws (21) (Fig. 3).

The device operates as follows.

When the vehicle is parked, the device is in the “closed” state (see Fig. 1), in which the steering wheel is in the standard locking position, and the steering shaft is blocked by the interaction of the protruding part of the locking element (5) with the stationary elements of the car (not shown) . The locking mechanism (16) is turned with a removable key (18) to a position where the control pin (15) is at a minimum distance from the first coupling half (2), while it releases the valve (11), which is inserted using the spring (13) and pressed against the stop in the return hole of the first coupling half (2), preventing the possibility of dismantling the blocking element (5). When installing the lock in this position, the key (18) is removed from the cylinder lock device (16) and stored separately.

To bring the lock into the “open” position, the key (18) is inserted into the cylinder locking device (16) and turned into the “movement” position, while the pin (15) moving acts on the walls of the valve (11) and leads it into the recess of the blocking element ( 5), compressing the spring (13) and releasing the blocking element (5) from fixing in the first coupling half (2). The blocking element (5) is removed, freeing the steering wheel of the vehicle and providing the possibility of its operation, after which the key (18) is removed from the cylinder locking mechanism (16) and stored separately. The removed blocking element (5) is stored in the holder (20) to prevent its spontaneous movement when the vehicle is moving.

To bring the vehicle into the “parking” state, the steering wheel of the vehicle is fixed in one of the standard locking positions, after which the blocking element (5) is removed from the holder (20). Then the blocking element is inserted into the T-groove (6) of the first half-coupling (2), while at the moment of passage of the valve (11) of the end face of the first half-coupling (2), the valve (11) rests against the entry chamfer (19) in the first half-coupling (2), the valve (11) is recessed into the recess of the blocking element (5), and in the extreme position with the spring (13), the valve (11) returns to its extended position and is fixed in the first coupling half (2), preventing the possibility of dismantling the blocking element (5).

When an attacker attempts to dismantle the device by sawing fixing screws (4), the attacker's tool does not “crawl” to the fixing screws, as access to them will be closed by a protective flange (8) made along the entire perimeter of the coupling.

Thus, the proposed design allows to increase the degree of protection of the castle from breaking.

It should be noted that the claimed utility model is not limited to the particular forms of implementation described in the application. Other modifications of the claimed device are also possible within the scope of the proposed set of essential features.

Claims (7)

1. The lock for the vehicle’s steering shaft, comprising a detachable clutch (1), consisting of two interconnected half-couplings (2) and (3), made with the possibility of grasping the locked steering shaft, while in the first half-coupling (2) T- a shaped groove (6) and a radial hole (7), moreover, along the perimeter of the connection surface of the coupling halves (2) and (3) in the first coupling half (2) there are bumpers (8) protruding relative to the specified coupling surface, and in the second coupling half (3) - recesses (9) corresponding to the indicated sides (8), or between the surface and compounds coupling halves (2) and (3) placing at least one flat insert (10) to form a groove corresponding to said side; and a rod blocking element (5), in the cavity of which a cylinder locking mechanism (16) and a spring-loaded valve (11) connected with it are installed, while the blocking element (5) is provided with protrusions made along its side surfaces and is fixed on the first coupling half ( 2) when placed in its T-groove (6) of said protrusions and placed in its radial hole (7), a spring-loaded valve (11). 2. The lock according to claim 1, in which the coupling halves (2) and (3) are interconnected by screws (4), the heads of which are recessed into the first coupling half (2) and are protected from unscrewing by the adjacent surface of the blocking element (5). 3. The lock according to claim 1, in which at least one insert (10) is mounted on the second coupling half (3). 4. The lock according to claim 1, in which at least one insert (10) is not fixed to the second coupling half (3) 5. The lock according to any one of claims 1 to 4, in which the valve (11) is equipped with a chamfer (19). 6. The lock according to any one of claims 1 to 4, in which the locking mechanism (16) is connected to the valve (11) through a control pin (15) located in the recess of the valve (11). 7. The lock according to any one of claims 1 to 4, in which the locking mechanism (16) is closed by a cover (17) located on the side of the end surface of the blocking element (5).