CN219638631U - Door lock holding anti-damage device for vehicle - Google Patents

Abstract

The utility model relates to the technical field of automobile door locks, in particular to a door lock holding anti-damage device for an automobile, which comprises a ratchet wheel and a pawl meshed and fixed with the ratchet wheel, wherein the pawl is elastically hinged to one side of the ratchet wheel through a rotating shaft, a main claw and an auxiliary claw which are distributed up and down are sleeved on the rotating shaft, and side ends of the ratchet wheel are respectively provided with an avoidance groove meshed with the main claw and the auxiliary claw. The utility model can limit the further movement of the pawl through the arrangement of the barrier, namely, a certain acting force is applied to the pawl to limit the rotation of the pawl, so that the pawl is prevented from continuously moving under the action of gravity or inertia force, and simultaneously, the ratchet wheel is prevented from rotating to strike the end face of the pawl when the door is opened or the door is under the action of the sealing counter force of the car body, and the damage of the pawl caused by two working conditions is avoided.

Description

Door lock holding anti-damage device for vehicle

Technical Field

The utility model relates to the technical field of automobile door locks, in particular to a door lock holding anti-damage device for an automobile.

Background

Door locks for vehicle doors typically provide locking or unlocking of the vehicle door by engagement between a ratchet and pawl, and typically have a half-lock condition and a full-lock condition.

In the patent with the application number of CN115012745A, the patent name of the automobile door lock meshing structure and the automobile, the automobile door lock meshing structure comprises a pawl assembly, wherein the pawl assembly comprises a pawl and a pawl shaft, the pawl shaft is fixedly arranged, and the pawl is rotatably arranged on the pawl shaft; the ratchet assembly comprises a double ratchet and a ratchet shaft, the ratchet shaft is fixedly arranged, the double ratchet is rotatably arranged on the ratchet shaft, the double ratchet always has a rotating trend on the ratchet shaft, and the double ratchet comprises a full-locking ratchet and a half-locking ratchet. According to the utility model, the situations that the shaking of the vehicle door drives the ratchet wheel to rotate and the pawl to be disengaged and generate abnormal sound can be reduced, and meanwhile, the false triggering of a pawl signal switch caused by the push of the lock catch after the single ratchet wheel is engaged is reduced, so that the safety of the vehicle door lock is improved;

as another patent with application number CN114833754a, the patent with the patent name of a double pawl ratchet mechanism, comprising a head with a cavity; a ratchet rotatably disposed in the cavity and having a drive portion and a tooth portion, wherein the drive portion protrudes outwardly from the cavity and is adapted to transmit torque to a workpiece; a pawl carrier rotatably disposed in the cavity and including a recess; and first and second pawls adapted to selectively engage with the teeth for selecting one of a first drive direction and a second drive direction, wherein each of the first and second pawls includes a protrusion adapted to engage with the recess when the pawl carrier rotates to disengage one of the first and second pawls from the teeth and the other of the first and second pawls to engage with the teeth.

The locking of the door lock is realized through the ratchet wheel and the pawl in the same technology, but in the process of jumping from the half locking position to the full locking position, the pawl rotates towards the ratchet wheel under the action of gravity or inertia force and can strike on the ratchet wheel, and when the door is opened or the door is under the action of the sealing counter force of the car body, the ratchet wheel can rotate reversely, the same ratchet wheel and the pawl can strike, so that the pawl rod is damaged, the door lock signal is further wrong, and the door lock function is lost.

For this reason, a door lock holding anti-damage device for a vehicle is proposed to solve the above-mentioned problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects in the prior art, the utility model provides a door lock holding anti-damage device for a vehicle, which can effectively solve the problem that a ratchet wheel and a pawl are easy to strike when the ratchet wheel and the pawl are matched in a rotating way, so that the function of the door lock is lost.

Technical proposal

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a door lock keeping anti-damage device for a vehicle, which comprises a ratchet wheel and a pawl meshed and fixed with the ratchet wheel, wherein the pawl is elastically hinged to one side of the ratchet wheel through a rotating shaft, a main claw and an auxiliary claw which are distributed up and down are sleeved on the rotating shaft, and avoidance grooves meshed with the main claw and the auxiliary claw are respectively arranged at the side ends of the ratchet wheel, wherein a boss is vertically arranged at the position, close to the outer edge, of the upper end of the main claw, the outer side end face of the boss is a cambered surface, and an obstacle which is always abutted against the cambered surface of the boss is arranged on the cambered surface of the boss.

Further, the barrier is an elastic structure which can be bent towards one end far away from the boss when contacting with the cambered surface of the boss.

Further, the obstacle is in a sheet shape, and comprises, in order from one side far away from the pawl:

an extension portion which is out of a movement path of the pawl and which extends horizontally toward the pawl direction:

the inclined part extends from one side of the extending part towards one side of the boss in an inclined way until the inclined part is abutted against the end face of the boss:

and a bending portion provided at a distal end of the inclined portion and bent in a direction opposite to an extending direction of the inclined portion from a contact portion of the inclined portion with the boss.

Further, the barrier is provided with a fixing hole penetrating in the thickness direction thereof, and the fixing hole is provided at the extension portion of the barrier.

Further, the joint of the inclined part and the bending part is rounded, and the cambered surface end is always abutted against the end face of the boss.

Further, the pawl rotation angle range does not exceed the radian of the boss.

Further, the lengths of the two sides of the main claw, which are positioned on the rotating shaft, are unequal, and one longer end faces the avoidance groove.

Further, the fixing hole is rectangular.

Further, the extended portion in the obstacle is thickened.

Further, one end of the boss, which is abutted against the obstacle, is a cambered surface.

Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following steps of

The beneficial effects are that:

the utility model can limit the further movement of the pawl through the arrangement of the barrier, namely, a certain acting force is applied to the pawl to limit the rotation of the pawl, so that the pawl is prevented from continuously moving under the action of gravity or inertia force, and simultaneously, the ratchet wheel is prevented from rotating to strike the end face of the pawl when the door is opened or the door is under the action of the sealing counter force of the car body, and the damage of the pawl caused by two working conditions is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is an overall exploded view of a structure in an embodiment of the present utility model;

FIG. 2 (a) is a schematic diagram showing an unlocked state of a door lock according to an embodiment of the present utility model;

fig. 2 (b) is a schematic diagram of a door lock in a half-locked state according to an embodiment of the present utility model;

FIG. 3 (a) is a schematic diagram showing a door lock in a closed state according to an embodiment of the present utility model;

fig. 3 (b) is a schematic diagram of a door lock in a fully locked state according to an embodiment of the utility model.

Reference numerals in the drawings represent respectively: 1. a ratchet wheel; 2. a pawl; 21. a main claw; 211. a boss; 22. an auxiliary claw; 3. an obstacle; 31. an extension; 311. a fixing hole; 32. an inclined portion; 33. a bending part.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The utility model is further described below with reference to examples.

Examples: along with popularization of automobiles, the intelligent degree of the automobiles is also higher and higher. It is therefore desirable for an electronics team to have a given switching signal on the structural design that is easy to program and manage. On the premise of the requirement, compared with the traditional door lock design, the pawl is split into two parts of the pawl and the pawl rod, so that the problem that the pawl switch jumps from half locking position to full locking position is solved.

When the door lock catches and drives the ratchet 1 to rotate, the pawl 2 rotates along the change of the outer contour of the ratchet 1 under the action of spring force, and the pawl 2 can be abutted against the avoidance groove arranged on the ratchet 1 to realize locking, but a certain height difference exists in the avoidance groove arranged on the ratchet 1, when the ratchet 1 continues to rotate, the pawl 2 can be caused to continue to rotate towards the torsion release direction under the action of torsion, and meanwhile, when the door is opened or the door moves towards the opening direction under the action of the sealing counter force of the automobile body, the ratchet 1 can be driven to reversely rotate, so that the ratchet 1 can strike the pawl 2, the pawl 2 is damaged, the door lock signal is further damaged, the door lock function is further lost, the pawl 2 can strike the ratchet 1, the pawl 2 is damaged with the avoidance groove matched part, and even the door lock signal is wrong, and the door lock function is lost.

Based on this, this scheme has provided a vehicle door lock keeps anti-damage device, refer to fig. 1-3 (b), this scheme adopts and sets up the barrier 3 that can restrict pawl 2 further pivoted in pawl 2 one side, when pawl 2 breaks away from with dodging the groove on the ratchet 1, provides certain resistance for pawl 2's continuation rotation, prevents pawl 2 and hits on dodging groove or ratchet 1 body under the torsion of self, gravity or inertial force effect, avoids causing the contact position between ratchet 1 or pawl 2 and the ratchet 1 to cause the destruction.

With this structure, even if the ratchet 1 rotates reversely when opening the door, the ratchet 1 does not collide with the pawl 2 in the rotation path, and damage caused by collision is avoided.

The scheme specifically comprises a ratchet 1 and a pawl 2 which is meshed and fixed with the ratchet 1, the pawl 2 is elastically hinged to one side of the ratchet 1 through a rotating shaft, a torsion spring is sleeved on the rotating shaft to realize elastic rotation, (the same elastic rotation of the ratchet 1 is installed on a vehicle mounting plate seat, the torsion spring can be used as an elastic piece, the torsion spring is twisted to generate elasticity when the ratchet 1 rotates, the scheme is not described in detail, meanwhile, the scheme is not shown in the drawings), a main claw 21 and an auxiliary claw 22 which are distributed up and down are sleeved on the rotating shaft, and avoidance grooves meshed with the main claw 21 and the auxiliary claw 22 are respectively formed in the side ends of the ratchet 1.

Specifically, dodge the groove and be provided with two places, every department dodges the groove and constitute by two offset but concentric cambered surfaces, form a cell body structure of "lightning" form to concave surface towards pawl 2 one side, two places dodge the groove and be used for respectively with main claw 21 and the one end of vice claw 22 cooperate, and be provided with the bayonet socket on ratchet 1, can be in the full lock position state under with vice claw 22 looks butt when ratchet 1.

Referring to fig. 2 (a), in the door open state, the door lock ratchet 1 is opposite to the pawl 2, and in the normal door open state, the top ends of both sides of the main pawl 21 and the auxiliary pawl 22 are not contacted with the avoiding grooves, and no engagement is started;

referring to fig. 2 (b), when the door needs to be closed and is in a door half-locking state, the door lock catch drives the ratchet wheel 1 to move, and meanwhile, the pawl 2 starts to rotate, and when one ends of the main pawl 21 and the auxiliary pawl 22 in the pawl 2 are abutted in the avoidance groove, synchronous meshing fixation is realized, and the positions between the ratchet wheel 1 and the pawl 2 are kept relatively fixed (the pawl 2 is usually opposite to the avoidance groove and rotates towards the direction of the avoidance groove when rotating, which is a known technology, and the scheme is not excessively shown);

referring to fig. 3, when the state is the state before the full door lock is engaged, when the state is to be changed from the half door lock state to the full door lock state, the main pawl 21 and the auxiliary pawl 22 at the moment can gradually be rotated and separated from the original avoiding groove by continuously driving the ratchet wheel 1 to move through the vehicle door lock, when the ratchet wheel 1 is pulled towards the opening direction, the main pawl 21 can continuously move towards the avoiding groove direction of the ratchet wheel 1 under the action of gravity, so that the pawl 2 can be damaged by striking the avoiding groove, but the main pawl 21 can be limited by the action of the obstacle 3 and cannot rotate, so that the pawl 2 can be prevented from being damaged by the impact of the torsion of the rotating shaft of the main pawl 3, if the relative position of the main pawl 21 is kept by the no obstacle 3, the pawl 2 is meshed with the ratchet wheel 1 under the action of gravity or inertia force, and under the working condition, the vehicle door is opened or the vehicle door is driven to rotate towards the opening direction under the action of the sealing counterforce of the vehicle body, so that the ratchet wheel 1 can strike the pawl 2, the pawl 2 is damaged, further signal error is caused, the function is further lost, and the auxiliary pawl 2 is further damaged, and the pawl 2 is continuously meshed with the ratchet wheel 1 when the ratchet wheel 1 and the ratchet wheel 1 is continuously locked with the pawl 2. (the specific way of making the locking structure between the ratchet 1 and the pawl 2 by the lock catch be the prior art and changing from the door-opening state to the half-locking state and then completing the half-locking to the full-locking state is the same known technology, and this example is not repeated here

Specifically, a boss 211 is vertically arranged at the upper end of the main claw 21 near the outer edge of the main claw 21, the outer end face of the boss 211 is an arc face, and an obstacle 3 which always abuts against the arc face of the boss 211 is arranged on the arc face of the boss 211.

The barrier 3 in this scheme is elastic construction, and it can be when contacting with boss 211 cambered surface, and the one end of keeping away from boss 211 is buckled, produces the resilience force, and the rotation of restriction pawl 2 avoids beating to cause the damage on ratchet 1 after pawl 2 rotates.

The whole obstacle 3 in this specific scheme is the slice, including extension 31, tilting portion 32 and bending portion 33 in proper order from the one side that keeps away from pawl 2, extension 31 is outside the motion route of pawl 2, and it extends towards pawl 2 direction level, tilting portion 32 extends to the boss 211 side slope from one side of extension 31 until the conflict is on the terminal surface of boss 211, bending portion 33 establishes at tilting portion 32's end and its contact position from tilting portion 32 and boss 211 is crooked towards tilting portion 32 direction of extension opposite direction.

Therefore, the whole obstacle 3 forms two stress points with an arch surface and an inclined surface, the limiting action on the pawl 2 is more thorough, so that no matter the force in the pressing direction of the arch surface or the thrust of the inclined part 32 towards the extension part 31 is exerted, the material and the shape of the inclined part can be utilized to apply the reaction force on the pawl 2, and the pawl 2 is prevented from colliding towards one side of the ratchet wheel 1 under the action of gravity or inertia.

The fixing manner of the obstacle 3 is not limited, and in this embodiment, the obstacle 3 is provided with a fixing hole 311 penetrating in the thickness direction thereof, the fixing hole 311 is rectangular and is provided at the extension 31 of the obstacle 3, and the obstacle 3 can be fixed to one side of the pawl 2 by means of a screw or a buckle.

In order to ensure that the contact point between the barrier 3 and the pawl 2 is not too sharp, so that the boss 211 is not damaged when the barrier 3 and the pawl are in contact with each other, the joint of the inclined part 32 and the curved part 33 is rounded, and the cambered surface end is always abutted against the end surface of the boss 211, so that even if the abutting state is always kept, the surface of the boss 211 is not scratched due to a sharp arc angle, and the whole boss 211 is thinned or rubbed too smoothly, so that the limiting effect is affected.

And the rotating angle range of the pawl 2 in the scheme does not exceed the radian of the boss 211, so that the boss 211 arranged on the main pawl 21 in the pawl 2 can always collide with the obstacle 3.

Meanwhile, the pawl 2 integrally forms a lever structure, and the length of the pawl 2 in the specific scheme is unequal on two sides of the rotating shaft, in particular to the main pawl 21, and the longer end faces the avoidance groove.

In order to ensure that the obstacle 3 does not fall off easily after long-term use, the extension 31 of the obstacle 3 is thickened.

In addition, in the present case, the boss 211 is abutted against one end of the obstacle 3 to form an arc surface, and when the boss 211 is abutted against the obstacle 3, the arc end surface does not cause the sense of pause when the main claw 21 rotates, and in practice, the arc surface is not limited to the arc surface in the present case.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present utility model.

Claims (8)

1. The anti-damage device for the vehicle door lock comprises a ratchet wheel (1) and a pawl (2) meshed and fixed with the ratchet wheel (1), and is characterized in that the pawl (2) is hinged to one side of the ratchet wheel (1) through a rotating shaft, a main pawl (21) and an auxiliary pawl (22) which are distributed up and down are sleeved on the rotating shaft, and avoidance grooves meshed with the main pawl (21) and the auxiliary pawl (22) are respectively formed in the side end of the ratchet wheel (1);

the upper end of the main claw (21) is vertically provided with a boss (211) close to the outer edge of the main claw, the outer side end face of the boss (211) is an arc face, and an obstacle (3) which always abuts against the arc face of the boss (211) is arranged on the arc face of the boss (211).

2. A door lock holding anti-breaking device for vehicles according to claim 1, characterized in that the obstacle (3) is an elastic structure which can be bent toward the end far from the boss (211) when contacting with the arc surface of the boss (211).

3. The door lock holding anti-damage device for vehicles according to claim 2, wherein the obstacle (3) is in the form of a sheet, comprising, in order from the side remote from the pawl (2):

-an extension (31), said extension (31) being outside the path of movement of the pawl (2) and extending horizontally towards the pawl (2):

an inclined portion (32), wherein the inclined portion (32) extends from one side of the extending portion (31) toward one side of the boss (211) in an inclined manner until abutting on an end face of the boss (211):

and a bending portion (33), wherein the bending portion (33) is provided at the tip of the inclined portion (32) and bends in the direction opposite to the extending direction of the inclined portion (32) from the contact portion between the inclined portion (32) and the boss (211).

4. The door lock holding anti-damage device for vehicles according to claim 2, wherein the barrier (3) is provided with a fixing hole (311) penetrating in a thickness direction thereof, and the fixing hole (311) is provided at an extension portion (31) of the barrier (3).

5. A door lock holding anti-damage device for vehicles according to claim 3, characterized in that the connection of the inclined part (32) and the curved part (33) is rounded, and the cambered end always abuts against the end surface of the boss (211).

6. A door lock holding anti-damage device for vehicles according to claim 1, characterized in that the pawl (2) rotates in an angle range not exceeding the arc of the boss (211).

7. A door lock holding anti-damage device for vehicles according to claim 1, wherein the main claws (21) are provided on both sides of the rotating shaft with different lengths, and the longer ends face to the avoiding grooves.

8. The door lock holding anti-damage device for vehicles according to claim 4, wherein the fixing hole (311) has a rectangular shape.