CN112252861A

CN112252861A - Lock mechanism with ice breaking mechanism

Info

Publication number: CN112252861A
Application number: CN202011251449.7A
Authority: CN
Inventors: 华勇; 肖尧; 黄昕然; 王养飞
Original assignee: Shanghai Inteva Automobile Door System Co ltd
Current assignee: Shanghai Inteva Automobile Door System Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-01-22
Anticipated expiration: 2040-11-10
Also published as: CN112252861B

Abstract

The application discloses latch mechanism that has mechanism that opens ice comprises parts such as catch, cardboard, pawl, axle, cardboard actuating lever, pawl release lever, support, swing claw, take-up pulley, cable, pulley, locating part, support arm, fixed axle, pull rod, spring, swing arm that opens ice, the pull rod that opens ice. The utility model provides a be equipped with the mechanism that opens ice on the latch mechanism, start this mechanism and push the door a certain distance open, for manual opening the door or electronic opening the door provides supplementary, promoted customer satisfaction.

Description

Lock mechanism with ice breaking mechanism

Technical Field

The application relates to the technical field of automobile door locks, in particular to a lock mechanism with an ice breaking mechanism. When the door is covered by rain and snow or the door is frozen by the residual water, the door cannot be bounced by the sealing strip. In this case, the door opening force is large, and even the door is difficult to open. Under this operating mode, the mechanism that opens ice can starting drive the door lock cardboard rotatory, borrows power hasp to open the door.

Background

When a traditional door lock (such as CN104179405A) is unlocked, a ratchet-pawl mechanism inside a lock body is unlocked, and a door is bounced open by virtue of the compression potential energy of a door sealing strip. When the door is covered by rain or snow or the water remains frozen, the door cannot be flicked by the weather strip. In this case, a very large force is required to pull or push the door, and even the door is difficult to open.

On the other hand, with the development of intelligent, motorized and shared vehicles, more and more vehicle models are beginning to be equipped with electrically-operated unlocking locks, as a result of which it is possible to use hidden handles and even to cancel the design of mechanical outer handles. In above-mentioned abominable low temperature sleet environment, the door is frozen, and hidden handle has certain probability can't pop out, is equivalent to not having outer handle, and the passenger will face the situation that no application of force can't open the door. One solution to this problem is to install an additional top door actuator to push the door a distance apart (see CN108301727A), but this solution adds complexity and cost to the system.

Disclosure of Invention

The present application provides a latch mechanism with an ice breaking mechanism.

The following technical scheme is adopted in the application:

a lock mechanism having an ice breaking mechanism, comprising: a lock ring and a lock body,

the lock body comprises a support, a first shaft is arranged on the support, a clamping plate and a clamping plate driving rod are mounted on the first shaft, the clamping plate driving rod can drive the clamping plate to rotate around the first shaft together, and the clamping plate is provided with a groove part matched with the locking ring;

a seventh shaft is arranged on the support, an ice breaking swing arm capable of rotating around the seventh shaft is mounted on the seventh shaft, an eighth shaft is fixed on the ice breaking swing arm, an ice breaking pull rod is mounted on the eighth shaft and can rotate around the eighth shaft relative to the ice breaking swing arm, and one end of the ice breaking pull rod can hook the clamping plate driving rod;

and a fourth shaft is arranged on the support, a tensioning wheel capable of rotating around the fourth shaft is arranged on the fourth shaft, and the tensioning wheel is matched with the ice breaking swing arm.

Preferably, the bracket is provided with a second shaft, the second shaft is provided with a pawl and a pawl release lever which can rotate around the second shaft, and the pawl is fixedly connected with the pawl release lever.

Preferably, the tensioning wheel is connected with a cable, and the cable is driven by an external actuating mechanism.

Preferably, the locking ring has a cylindrical portion, and the slot portion of the catch plate mates with the cylindrical portion of the locking ring.

Preferably, a second spring is mounted on the shaft eight, two feet of the second spring are respectively connected with the ice breaking swing arm and the ice breaking pull rod, and the tensioning torque of the second spring forces the ice breaking pull rod to rotate away from the shaft seven relative to the ice breaking swing arm.

Preferably, the bracket is further provided with a return spring, one spring leg of the return spring is mounted on the shaft eight, and the other spring leg is mounted on the bracket or the shell.

Preferably, one end of the ice breaking pull rod is provided with a hook part, the chuck plate driving rod is provided with a convex part, and the hook part of the ice breaking pull rod hooks the convex part of the chuck plate driving rod.

Preferably, an included angle between the direction of the contact force of the hook part of the ice breaking pull rod and the convex part of the chuck plate driving rod and the movement direction of the ice breaking pull rod is not less than 3 degrees.

Preferably, a third shaft is fixed on the tensioning wheel, a swing claw which can rotate around the third shaft is installed on the third shaft, a fifth shaft is fixed on the swing claw, a pulley which can rotate freely around the fifth shaft is installed on the fifth shaft, a sixth shaft is installed on the support or the shell, a rotatable limiting part is installed on the sixth shaft, a limiting groove is formed in the limiting part, and the pulley is limited to move in the limiting groove.

Preferably, the catch plate is provided with a projection cooperating with the swing claw.

Preferably, the latch mechanism includes the fixed axle, installs rotatable support arm on the fixed axle, installs spring one between support arm and the locating part.

Preferably, the stopper blocks the support arm.

Preferably, the support is provided with a release lever, and a pull rod is connected between the release lever and the support arm.

Preferably, the pull rod is provided with an inclined surface, the ice breaking pull rod is provided with a protrusion, and the inclined surface of the pull rod is matched with the protrusion of the ice breaking pull rod.

The beneficial effect of this application is as follows:

the utility model provides a latch mechanism is equipped with the mechanism that opens ice, can be when the door is frozen, and the drive lock cardboard is rotatory, borrows power hasp with door back-open, opens the door or electronic opening the door provides supplementary for manual, has promoted customer satisfaction. In some preferred embodiments, part of the components of the ice breaking mechanism can also be used for realizing a self-closing function, so that the integration level is improved, and the cost is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

Fig. 2 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

Fig. 3 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

Fig. 4 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

Fig. 5 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

Fig. 6 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

Fig. 7 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

Fig. 8 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

Fig. 9 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

Fig. 10 is a schematic view of a lock mechanism with an ice breaking mechanism according to an embodiment of the present application.

The reference numerals are explained below:

09. 09a, a column part, 11, a catch plate, 11a, a groove part, 11c, a protrusion part, 12, a pawl, 13, a first shaft, 14, a second shaft, 15, a catch plate driving rod, 15a, a convex part, 16, a pawl releasing lever, 18, a releasing lever, 18c, a connecting part, 19, a bracket, 21, a swing claw, 22, a third shaft, 23, a tensioning wheel, 23a, a convex part, 23c, a concave part, 24, a fourth shaft, 25, a pulling cable, 25c, an end part, 31, a pulley, 32, a fifth shaft, 33, a limiting part, 33a, a limiting groove, 33b, a stopping part, 33c, a spring mounting part, 34, a sixth shaft, 35, a supporting arm, 35b, a stopping part, 35d, a spring mounting part, 36, a fixed shaft, 37, a pulling rod, 37a end part, 37b, a bevel, 37c, a second end part, 39, a first spring part, 39d, a first end part, 41, an ice swing arm, 42, and a seventh shaft, 43. the ice breaking pull rod 43a, the hook part 43b, the protrusion 44, the shafts eight and 46, the springs two and 48 and the return spring.

110. 120, 130, 140, 150, 160, 170, 180, 190 are directions of motion.

135. Inclination angle, F131, contact force, F132, component one, F133, component two.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The present embodiments provide a lock mechanism with an ice breaking mechanism having a lock ring 09 with a cylindrical portion 09a and a lock body with a holder 19, the lock ring 09 having a cylindrical portion 09 a.

Be equipped with axle 13 on the support 19, axle 13 is installed and is wound its rotatory cardboard 11 and cardboard actuating lever 15, when cardboard actuating lever 15 revolves around axle 13, can drive cardboard 11 co-rotation. The card 11 is provided with a slot portion 11a, the slot portion 11a cooperating with the cylindrical portion 09a of the lock ring 09, when the card 11 is rotated in the direction 140, the cylindrical portion 09a is pushed, and the lock ring 09 is pushed to move in the direction 190 away from the lock body.

The second shaft 14 is arranged on the bracket 19, the second shaft 14 is provided with a pawl 12 and a pawl releasing rod 16 which can rotate around the second shaft, and the pawl 12 is fixedly connected with the pawl releasing rod 16. Pawl 12 and cardboard 11 constitute pawl ratchet cooperation, and when pawl 12 was in the unlocking position, cardboard 11 can the free rotation, and the lock mechanism is in the unlocking state.

The bracket 19 is provided with a seventh shaft 42, the seventh shaft 42 is provided with an ice breaking swing arm 41 which can rotate around the seventh shaft 42, an eighth shaft 44 is fixed on the ice breaking swing arm 41, an ice breaking pull rod 43 is arranged on the eighth shaft 44, and the ice breaking pull rod 43 can rotate around the eighth shaft 44 relative to the ice breaking swing arm 41.

The bracket 19 is provided with a shaft iv 24, the shaft iv 24 is mounted with the tension pulley 23 rotatable around the shaft iv 24, and the cable 25 is mounted with an end 25c of one end thereof to the recess 23c of the tension pulley 23. The cable 25 can be driven by an external actuator, and the tension pulley 23 is driven by the cable 25 to rotate along the direction 110. In this process, the protrusion 23a of the tension pulley 23 engages with the ice breaking swing arm 41, and the tension pulley 23 pushes the ice breaking swing arm 42 to rotate in the direction 120, and as a result, the entraining shaft 44 and the ice breaking lever 43 rotate together.

One end of the ice-breaking pull rod 43 is provided with a hook 43a, and the hook 43a hooks the projection 15a of the card board driving rod 15 under the condition of no external constraint. As the ice breaking swing arm 42 rotates in the direction 120, the hook 43a drags the projection 15a on the card drive lever 15 to move in the direction 130, and as a result, the card drive lever 15 and the card 11 rotate together in the direction 140, which pushes the lock ring 09 to move in the direction 190.

Since the locking ring 09 is typically mounted to the other side of the body or door relative to the door lock, this motion will force the body and door apart. This independent process can break ice and extra blockage between the body and the door when the driving force is sufficient, ensuring that the door is opened, or at least partially opened, to clear the barrier for the next manual or power-hinge opening. This process is an ice breaking process.

In a preferred embodiment, the hook 43a of the ice-breaking pull rod 43 and the protrusion 15a of the card board driving lever 15 are designed with an inclination angle 135 on the contact surface, and the inclination angle 135 is defined as: the angle between the direction of the contact force F131 of the hook 43a and the projection 15a and the direction of movement of the ice-breaking lever 43 is typically not less than 3 degrees at the inclination angle 135. The contact force F131 can be decomposed into a first component F132 and a second component F133, the first component F132 is along the moving direction of the ice-breaking pull rod 43, and the presence of the second component F133 ensures that the hook 43a does not come off the protrusion 15a during the ice-breaking process.

In a preferred embodiment, the lock mechanism is further provided with a return spring 48, the return spring 48 may be a torsion spring, a tension spring, or the like, one leg of the return spring 48 is mounted on the shaft eight 44, and the other leg is mounted on the bracket 19 or the housing. The tension of return spring 48 produces two effects: firstly, pushing the ice breaking swing arm 41 to rotate along the 180 direction; and secondly, pushing the ice breaking pull rod 43 to move along the direction 170. As shown in fig. 4, after the door is opened, the resetting process of the ice breaking mechanism is as follows: first, the external actuator releases the tension of the cable 25, the tension pulley 23 rotates in the 190 direction, the protrusion 23a on the tension pulley 23 releases the restraint on the ice breaking swing arm 41, the ice breaking swing arm 41 rotates in the 180 direction to be reset by the urging of the reset spring 48, the ice breaking pull rod 43 is reset in the 170 direction, and finally, the state shown in fig. 1 is returned to, and the reset is completed.

The second spring 46 is mounted on the shaft eight 44, two feet of the second spring 46 are respectively connected with the ice breaking swing arm 41 and the ice breaking pull rod 43, and the tensioning torque of the second spring 46 forces the ice breaking pull rod 43 to rotate towards the direction 160 away from the shaft seven 42 relative to the ice breaking swing arm 41. As a result, on the one hand a reliable connection of the hook 43a and the projection 15a is ensured and on the other hand a free oscillation of the ice-breaking lever 43 along the shaft eight 44 is limited, avoiding vibrations and noise.

In a preferred embodiment, the pulling rope 25, the tensioning wheel 23 and the like can be used for realizing not only the ice breaking process but also the self-closing process, so that the integration level is improved and the cost is reduced. The method specifically comprises the following steps: the third shaft 22 is fixed to the tension pulley 23, and the third shaft 22 is provided with a swing claw 21 rotatable around the third shaft. The fifth shaft 32 is fixed to the swing claw 21, and the fifth shaft 32 is provided with a pulley 31 which can freely rotate around the fifth shaft. The shaft six 34 is fixed on the bracket 19 or the fixed shell, and the shaft six 34 is provided with a rotatable limiting piece 33. The stopper 33 is provided with a stopper groove 33a, and the pulley 31 is restricted from moving in the stopper groove 33 a. As a result, the position of the stopper groove 33a determines the movement locus of the pulley 31, and further restricts the movement of the swing claw 21. A rotatable support arm 35 is mounted on the stationary shaft 36. The first end 39c of the first spring 39 is mounted on the spring mounting portion 33c of the limiting member 33, and the second end 39d of the first spring 39 is mounted on the spring mounting portion 35d of the supporting arm 35. Due to the tension moment of the first spring 39, the supporting arm 35 and the limiting member 33 respectively have a tendency to be pushed to rotate. In the initial state, the stopper 35b of the support arm 35 contacts the stopper 33b of the stopper 33, and the stopper 33 restricts the rotation of the support arm 35. The tension pulley 23 is pulled by the cable 25, the tension pulley 23 drives the swing claw 21 through the third shaft 22, and the swing claw 21 moves together under the limit of the limit groove 33a until the swing claw 21 contacts the protruding part 11c on the clamping plate 11. Further, the swing claw 21 pushes the protrusion 11c to rotate the locking plate 11, and the locking ring 09 is driven to move toward the lock body through the slot 11 a. Since the lock ring 09 is typically mounted to the other side of the body or door relative to the door lock, this movement forces the body and door closer together and into the locked position, a self-closing process. Specifically, in the above process, the supporting arm 35 is stationary, and the stop portion 35b of the supporting arm 35 limits the stop portion 33b of the limiting member 33, thereby keeping the limiting member 33 and the limiting groove 33a thereon stationary. As a result, the pulley 31 is restricted by the stationary stopper groove 33a, ensuring that the self-attraction process described above continues.

The release lever 18 is journalled to the bracket 19 or some other housing structure that is fixed relative to the bracket 19.

In particular, the locking mechanism is also provided with a pull rod 37, the first end 37a of the pull rod 37 being connected to the support arm 35 and the second end 37c of the pull rod 37 being connected to the connection portion 18c of the release lever 18. The pull rod 37 is provided with an inclined surface 37b, the ice breaking pull rod 43 is provided with a protrusion 43b, and the inclined surface 37b and the protrusion 43b are matched with each other, namely, the torque of the second spring 46 pushes the ice breaking pull rod 43 to have the tendency of moving towards the direction 160, so that the protrusion 43b can be stopped on the inclined surface 37 b.

The self priming ready state is when the release lever 18 is in the rest position shown in fig. 7, i.e. the pawl release lever 16 is not dialled. In this state, on the one hand, the supporting arm 35 is in the position shown in the figure, supports the limiting member 33, and pushes the card plate 15 to move; the pull rod 37, on the other hand, is retained by the support arm 35 in the position shown in figure 7. Since the inclined surface 37b restricts the projection 43b, the position of the ice-breaking lever 43 is further restricted. During the movement, the projection 43b will slide on the stationary inclined surface 37b, thereby ensuring that the hook 43a is not in contact with the protrusion 15a at all times, as a result of which the ice breaking mechanism is isolated, ensuring the operation of the self-attracting process.

When the release lever 18 is in the position shown in fig. 9, i.e. the pawl release lever 16 is dialed, the ice-breaking readiness is established. In this state, the pull rod 37 is pulled by the release lever 18 and runs in the direction 150. As a result, the support arm 35 is pulled to rotate, and the support of the stopper 33 is released. The limiting member 33 rotates, and the limiting groove 33a on the limiting member drives the pulley 31 and the swing claw 21 to move away from the card plate 11. When the swing claw 21 is separated from the protruding part 11c of the clamping plate 11, the transmission chain is disconnected, and the self-suction mechanism is isolated; on the other hand, the ramp 37b moves with the pull rod 37 in the direction 150, away from and eventually disengages the projection 43 b. The ice-breaking pull rod 43 rotates around the shaft eight 44 under the torque of the second spring 46, so that the hook part 43a enters into a position capable of being matched with the protrusion 15a, namely the position shown in fig. 1. As a result of the above processes, the self-closing mechanism is isolated while the ice-breaking mechanism is engaged, referred to as an ice-breaking ready state. In this state, if the external actuator drives the cable 25, the ice breaking function can be realized.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A lock mechanism having an ice breaking mechanism, comprising: a lock ring and a lock body,

2. The lock mechanism of claim 1, wherein the bracket has a second shaft, the second shaft having a pawl and a pawl release lever mounted thereon for rotation about the second shaft, the pawl being fixedly connected to the pawl release lever.

3. The lock mechanism of claim 1, wherein the tension pulley is coupled to a cable that is driven by an externally located actuator.

4. The lock mechanism of claim 1, wherein the lock ring has a cylindrical portion, and the slot portion of the catch plate mates with the cylindrical portion of the lock ring.

5. The lock mechanism of claim 1, wherein a second spring is mounted on the shaft eight, two legs of the second spring are connected to the ice breaking swing arm and the ice breaking pull rod respectively, and the tensioning torque of the second spring forces the ice breaking pull rod to have a tendency to rotate away from the shaft seven relative to the ice breaking swing arm.

6. The lock mechanism of claim 1, further comprising a return spring on the bracket, wherein one leg of the return spring is mounted on the shaft eight and the other leg of the return spring is mounted on the bracket or the housing.

7. The lock mechanism of claim 1, wherein the icebreaking lever has a hook portion at one end and a tab portion on the catch plate drive lever, the hook portion of the icebreaking lever engaging the tab portion of the catch plate drive lever.

8. The lock mechanism of claim 7, wherein an angle between a direction of contact force of the hook portion of the icebreaking lever with the projection of the catch plate drive lever and a direction of movement of the icebreaking lever is not less than 3 degrees.

9. The lock mechanism according to claim 1, wherein a third shaft is fixed to the tension wheel, a swing claw is mounted on the third shaft and can rotate around the third shaft, a fifth shaft is fixed to the swing claw, a pulley is mounted on the fifth shaft and can rotate freely around the fifth shaft, a sixth shaft is mounted on the bracket or the shell, a rotatable limiting member is mounted on the sixth shaft, a limiting groove is formed in the limiting member, and the pulley is limited to move in the limiting groove.

10. A lock mechanism according to claim 9, wherein the catch plate is provided with a projection for cooperation with the pawl.

11. The lock mechanism of claim 9, wherein the lock mechanism includes a stationary shaft having the rotatable support arm mounted thereon, and a first spring is mounted between the support arm and the stop.

12. The lock mechanism of claim 11, wherein the stop blocks the support arm.

13. The lock mechanism of claim 11, wherein a release lever is coupled to the bracket, and a pull rod is coupled between the release lever and the support arm.

14. The lock mechanism of claim 13, wherein the pull rod is provided with a ramp and the icebreaking pull rod is provided with a protrusion, the ramp of the pull rod and the protrusion of the icebreaking pull rod cooperating with one another.