CN111749560B - Novel double-pull automobile engine hood lock - Google Patents
Novel double-pull automobile engine hood lock Download PDFInfo
- Publication number
- CN111749560B CN111749560B CN202010769670.5A CN202010769670A CN111749560B CN 111749560 B CN111749560 B CN 111749560B CN 202010769670 A CN202010769670 A CN 202010769670A CN 111749560 B CN111749560 B CN 111749560B
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- Prior art keywords
- lock
- release
- pawl
- spring
- connecting rod
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- 230000009471 action Effects 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 8
- 230000001788 irregular Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 4
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007488 abnormal function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
- E05B83/24—Locks for luggage compartments, car boot lids or car bonnets for car bonnets
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
- E05B81/26—Output elements
- E05B81/28—Linearly reciprocating elements
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
- E05B81/32—Details of the actuator transmission
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
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- Superstructure Of Vehicle (AREA)
Abstract
The application discloses a double-pull automobile engine hood lock which comprises a bottom plate, a back plate, a lock tongue shaft, a lock tongue spring, a half-lock pawl shaft, a full-lock pawl shaft, a pawl spring, a release rod, a release deflector rod, a release connecting rod, a rotating shaft, a reset spring and a reset spring. The advantages are as follows: the double-pull automobile engine cover lock provided by the application has a double-pawl structure and a signal indication function, realizes the opening function of the engine cover lock by pulling the operating handle in the cab twice, overcomes the defects of the traditional engine cover lock, greatly improves the comfort and convenience of operation, and has the advantages of simple structure, convenience in operation, safety and reliability.
Description
Technical Field
The application relates to the technical field of automobile parts, in particular to a double-pull automobile engine cover lock which has a double-pawl structure and a signal indication function and can realize the function of opening the engine cover lock by pulling twice.
Background
Along with the increasing national standard of living and the increasing technological progress of automobiles, people have more and more clear understanding of automobiles, automobiles become an indispensable important component in people's life, the requirements of people on automobile safety, operability and comfort are higher and higher, an automobile engine cover lock is an important part of automobile parts, but has no great change, and in the past, when people need to open an engine cover, the people need to pull an operating handle below a cab first to enable the engine cover to be in an auxiliary lock state, then walk to the front of a head to reach the auxiliary lock handle, sometimes, the auxiliary lock handle is difficult to find at one time, two hands are required to be matched for simultaneous operation, the engine cover is particularly troublesome to open, the operability is poor, and consumer dissatisfaction is caused frequently.
Disclosure of Invention
In order to solve the defects of the traditional engine hood lock, the application provides the double-pull automobile engine hood lock which has a double-pawl structure and a signal indication function, can realize the engine hood opening and keep the function of lifting at a certain height by pulling the opening handle twice, and can provide better operation comfort and convenience.
The application adopts the following technical scheme:
The double-pull automobile engine cover lock comprises a bottom plate, a back plate, a lock tongue shaft, a lock tongue spring, a half-lock pawl shaft, a full-lock pawl shaft, a pawl spring, a release lever, a release deflector rod, a release connecting rod, a rotating shaft, a return spring and a return spring;
the lock tongue is sleeved on the lock tongue shaft and rotates on the bottom plate surface around the lock tongue shaft;
one end of the lock tongue shaft is fixed on the bottom plate, and the other end of the lock tongue shaft is fixed on the back plate;
The spring bolt spring is sleeved on the spring bolt shaft and positioned between the spring bolt and the back plate, and is provided with a first spring arm limited on the spring bolt and a second spring arm limited on the back plate;
the half-locking pawl is sleeved on the half-locking pawl shaft and rotates around the half-locking pawl shaft;
the half-lock pawl shaft is fixed on the bottom plate;
the full-locking pawl is sleeved on the full-locking pawl shaft and rotates around the full-locking pawl shaft;
the full-locking pawl shaft is fixed on the bottom plate;
The pawl spring is sleeved on the bending structure of the bottom plate and is provided with a first elastic arm limited on the bottom plate and a second elastic arm limited on the half-lock pawl or the full-lock pawl, and the half-lock pawl and the full-lock pawl respectively apply a pawl spring to enable the half-lock pawl and the full-lock pawl to keep a tendency of rotating towards the meshing direction of the lock tongue under the torsion force of the pawl spring;
the release rod is sleeved on the rotating shaft and rotates around the rotating shaft;
the release deflector rod is sleeved on the rotating shaft, is positioned between the bottom plate and the release rod, is connected with the release rod and rotates coaxially;
The release connecting rod is connected to the release deflector rod, is positioned between the bottom plate and the release deflector rod, is interlocked with the release deflector rod, is overlapped on the half-lock pawl surface towards one side of the bottom plate, and is abutted on the half-lock pawl under the action of the return spring;
the rotating shaft is fixed on the bottom plate;
The reset spring is positioned between the release lever and the release deflector rod and is provided with a first elastic arm limited on the bottom plate and a second elastic arm fixed on the release lever;
The return spring is sleeved on the bending structure of the bottom plate and is provided with a first elastic arm limited on the release connecting rod and a second elastic arm fixed on the bottom plate.
The double-pull automobile engine cover lock further comprises a supporting connecting rod, a rivet and a tension spring; the rivet is fixed on the bottom plate; the support connecting rod is sleeved on the rivet and rotates around the rivet on the bottom plate surface; one end of the tension spring is fixed on the bottom plate, and the other end of the tension spring is fixed on the support connecting rod.
When the engine cover lock is in a full locking state, the support connecting rod is pressed to the lowest position, and the tension spring is in a maximum stretching state; when the engine cover lock is in a half-locking state, the supporting connecting rod is pressed to the middle position, and the tension spring is in a half-stretching state; when the engine cover lock is in an open state, the supporting connecting rod provides an engine cover lifting force under the action of the tension spring in a pre-stretching state.
The half locking pawl and the full locking pawl are respectively positioned at two sides of the same rotation surface of the lock tongue.
The lock tongue is provided with a half-lock engagement position engaged with the half-lock pawl and a full-lock engagement position engaged with the full-lock pawl.
The lock tongue is also provided with a pushing arm which is positioned behind the full lock meshing position; when the lock tongue enters the full-lock engagement position from the half-lock engagement position around the lock tongue shaft, the pushing arm acts on the release connecting rod to peel off the engagement between the release connecting rod and the half-lock pawl, so that the release connecting rod is in a blank state and the half-lock unlocking function cannot be completed; when the lock tongue rotates away from the full lock engagement position, the pushing arm does not squeeze the release connecting rod any more, the release connecting rod returns to the position engaged with the half lock pawl under the action of the return spring, and the release connecting rod is in a walking state, so that the half lock releasing function can be realized.
The upper end of the release rod is provided with a stay wire guide groove and a stay wire clamping interface, and an anti-falling elastic sheet is arranged at the stay wire clamping interface.
The lower end of the release rod is provided with two symmetrical sector steps for radially limiting the reset spring, and the inner sides of the sector steps are respectively provided with a coaxial driving boss and a connecting boss; the release deflector rod is provided with a cylinder sleeved with the reset spring, and the upper end of the cylinder is provided with a driving groove and a connecting groove which are respectively matched with the driving boss and the connecting boss; the connecting boss is matched with the connecting groove, so that the release lever and the release deflector rod are connected into a whole; the driving boss is matched with the driving groove, so that the release lever can effectively drive the release deflector rod to synchronously rotate.
The lower end of the release deflector rod is provided with a cam which is unfolded by a rotation center, and the inner side of the cam is provided with a cylinder which is used for connecting the release connecting rod; one end of the release connecting rod is provided with a round hole matched with the cylinder of the release deflector rod, one side of the release connecting rod, facing the bottom plate, is provided with an irregular groove, the groove surface is lapped on the rotation plane of the half-lock pawl, the other end of the release connecting rod is provided with a boss, the boss can act on the half-lock pawl to push the half-lock pawl to rotate when the release connecting rod is in an initial position, and the middle part of the release connecting rod is provided with a boss; when the lock tongue enters a full locking process, a pushing arm of the lock tongue acts on the protrusion to peel the release connecting rod off to be meshed with the half-lock pawl; when the lock tongue rotates away from the full locking position, the pushing arm does not press the release connecting rod any more, and the release connecting rod returns to the position meshed with the half-lock pawl under the action of the return spring.
The double-pull automobile engine cover lock further comprises a signal indication switch and an opening Guan Yapian; the signal indication switch is arranged on the bottom plate and is provided with a triggering spring piece; one end of the switch pressing sheet is pressed on the signal indication switch, and the other end of the switch pressing sheet is fixed on the bottom plate through a screw to limit the signal indication switch.
The beneficial effects of the application are as follows:
The double-pull automobile engine cover lock provided by the application has a double-pawl structure and a signal indication function, realizes the opening function of the engine cover lock by pulling the operating handle in the cab twice, overcomes the defects of the traditional engine cover lock, and greatly improves the comfort and convenience of operation.
When the closing engine cover lock enters a full locking state, the pushing arm of the lock tongue is abutted against the protrusion of the release connecting rod, so that the release connecting rod is in a running state, and after the full locking pawl enters a state of being meshed with the lock tongue, the signal indication signal is changed into a circuit breaking from a passage.
When the engine cover lock needs to be opened, the operating handle is pulled for the first time, the release lever is driven to rotate through the pull wire, the release lever drives the release shift lever to rotate, the cam on the release shift lever pushes the all-lock pawl to rotate, the all-lock pawl is disengaged from the all-lock engagement position of the lock tongue, the function of unlocking the all-lock is achieved, the release link rod in a walk-empty state is driven to move when the release shift lever rotates, after the lock tongue rotates away from the all-lock position, the release shift lever for opening the half-lock function returns to the initial position under the action of the return spring, at the moment, the half-lock engagement position of the lock tongue is engaged with the half-lock pawl, the all-lock pawl presses the signal indication switch, the signal indication switch is changed into a passage from a circuit, a consumer is reminded that the engine cover is not in the all-lock position, and after the release shift lever is loosened, the release lever and the release shift lever are reset under the action of the return spring.
When the operating handle is pulled for the second time, the reset release lever is driven to rotate through the pull wire again, the release lever drives the release deflector rod to drive the release connecting rod to move again, and the release connecting rod is in a walking state at the moment, so that the half-lock pawl is pulled to rotate, the half-lock pawl is separated from the half-lock meshing position of the lock tongue, the half-lock unlocking function is realized, and the mechanism resets again after the hand is loosened.
After the opening handle is operated twice, the engine cover lock is opened, and the engine cover is lifted and kept at a certain height by the supporting connecting rod under the action of the tension spring so as to be convenient for a consumer to lift. Therefore, the engine cover opening function can be realized through two pulling, and the engine cover opening device is simple in structure, convenient to operate, safe and reliable.
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 specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
Fig. 1 is an exploded view of the structure of a double pull car bonnet lock according to an embodiment of the present application.
Fig. 2 is a schematic structural view of a fully opened state of a double pull car hood lock according to an embodiment of the present application.
Fig. 3 is a schematic structural view of a half-lock state of a double-pull automobile hood lock according to an embodiment of the present application.
Fig. 4 is a schematic structural view of a double pull car hood lock in a fully locked state according to an embodiment of the present application.
Fig. 5 is a schematic view showing the state of the release link in three states of full open, half lock and full lock.
Fig. 6 is a schematic view of the structure of the release lever and release lever in a double pull car bonnet lock according to an embodiment of the application.
The reference numerals are explained as follows:
1. Bottom plate, 2, back plate, 3, spring bolt, 31, push arm, 32, boss, 33, half lock engagement position, 34, full lock engagement position, 4, spring bolt axle, 5, spring bolt, 6, half lock pawl, 7, half lock pawl axle, 8, full lock pawl, 9, full lock pawl axle, 10, pawl spring, 11, release lever, 111, wire guide slot, 112, wire clip interface, 1121, anti-release tab, 113, scalloped step, 114, drive boss, 115, connection boss, 12, release lever, 121, cylinder, 122, drive groove, 123, connection groove, 124, cam, 125, cylinder, 13, release link, 131, round hole, 132, irregular groove, 133, boss, 134, boss, 14, spindle, 15, return spring, 16, return spring, 17, support link, 18, rivet, 19, tension spring, 20, signal indicating switch, 21, switch tab, 22, screw.
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 clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1 to 4, the present application provides a double-pull automobile hood lock having a double pawl structure and a signal indication function, comprising a bottom plate 1, a back plate 2, a latch tongue 3, a latch tongue shaft 4, a latch tongue spring 5, a half latch pawl 6, a half latch pawl shaft 7, a full latch pawl 8, a full latch pawl shaft 9, a pawl spring 10, a release lever 11, a release lever 12, a release link 13, a rotary shaft 14, a return spring 15, a return spring 16, a support link 17, a rivet 18, a tension spring 19, a signal indication switch 20, a switch presser 21, and a screw 22.
The bottom plate 1 is provided with a mounting hole, a riveting hole and a limiting structure and is used for positioning and mounting of the engine cover lock and supporting and fixing of functional parts.
The lock tongue 3 is sleeved on the lock tongue shaft 4 and rotates around the lock tongue shaft 4 on the plane of the bottom plate 1, the lock tongue 3 is provided with a pushing arm 31 for pushing the release connecting rod 13, the lock tongue 3 is provided with a boss 32 for limiting the lock tongue spring 5, the lock tongue 3 is provided with a half-lock engagement position 33 for engaging with the half-lock pawl 6, and the lock tongue 3 is provided with a full-lock engagement position 34 for engaging with the full-lock pawl 8.
One end of the lock tongue shaft 4 is fixed on the bottom plate 1 in a riveting way, and the other end of the lock tongue shaft is fixed on the back plate 2 in a riveting way.
The spring bolt spring 5 is sleeved on the spring bolt shaft 4, the spring bolt spring 5 is located between the spring bolt 3 and the back plate 2, a first elastic arm of the spring bolt spring 5 is limited on a boss 32 of the spring bolt 3, a second elastic arm of the spring bolt spring 5 is limited on the back plate 2, and torque which rotates towards the opening direction is applied to the spring bolt 3.
The half-locking pawl 6 is sleeved on the half-locking pawl shaft 7 and rotates on the plane of the bottom plate 1 around the half-locking pawl shaft 7, and the half-locking pawl shaft 7 penetrates through the half-locking pawl 6 and the back plate 2 and is fixed on the bottom plate 1 in a riveting mode.
The full-locking pawl 8 is sleeved on the full-locking pawl shaft 9 and rotates on the plane of the bottom plate 1 around the full-locking pawl shaft 9, and the full-locking pawl shaft 9 penetrates through the full-locking pawl 8 and the back plate 2 and is fixed on the bottom plate 1 in a riveting mode.
The two pawl springs 10 are respectively sleeved on the bending structures of the bottom plate 1 and respectively applied to the half-lock pawl 6 and the full-lock pawl 8, and are provided with a first elastic arm limited on the bottom plate 1 and a second elastic arm limited on the half-lock pawl 6 and the full-lock pawl 8, and respectively apply torque for rotating towards the meshing direction of the half-lock pawl 6 and the full-lock pawl 8 with the lock tongue 3.
As shown in fig. 5 and 6, the upper end of the release lever 11 is provided with a stay wire guide slot 111 and a stay wire clamping interface 112, which are used for guiding and limiting a stay wire connected with the opening handle, and can be provided with stay wires in opposite directions, so that the release lever is applicable to left rudder and right rudder vehicles respectively; the pull wire clip interface 112 is provided with an anti-disengagement elastic sheet 1121 to prevent abnormal sound and abnormal functions caused by the pull wire being disengaged from the pull wire clip interface 112. The lower end of the release lever 11 is provided with two symmetrical fan-shaped steps 113 for radially limiting the return spring 15 and fixing a second elastic arm of the return spring 15; a driving boss 114 and a connecting boss 115 are coaxially arranged on the inner side of the fan-shaped step 113 respectively, and are used for being matched with the release deflector rod 12.
The release lever 12 is provided with a cylinder 121 for sleeving the return spring 15, the upper end of the release lever 12 is provided with a driving groove 122 and a connecting groove 123, and the connecting boss 115 is matched with the connecting groove 123, so that the release lever 11 and the release lever 12 are fastened and connected into a whole; the driving boss 114 is matched with the driving groove 122, so that the release lever 11 can effectively drive the release deflector rod 12 to synchronously rotate and bear a large load; the lower end of the release deflector rod 12 is provided with a cam 124 unfolded by a rotation center, the cam 124 is used for pushing the full-locking pawl 8 to rotate and has the function of unlocking full-locking, and the inner side of the cam 124 is provided with a cylinder 125 for connecting the release connecting rod 13.
The reset spring 15 is sleeved on the cylinder 121 of the release deflector 12, a first elastic arm of the reset spring 15 is limited on the bending structure of the bottom plate 1, and a second elastic arm of the reset spring 15 is fixed on the fan-shaped step 113 of the release lever 11, so that the reset function after the opening mechanism rotates is achieved.
One end of the release connecting rod 13 is provided with a round hole 131 for being matched with the cylinder 125 of the release deflector rod 12 to perform the functions of linkage and bearing; an irregular groove 132 is formed on one side of the release connecting rod 13 facing the bottom plate 1, and is used for being lapped on the rotation plane of the half-locking pawl 6 to limit the half-locking pawl 6; the other end of the release link 13 is provided with a boss 133, when the release link 13 is at an initial position, the release deflector rod 12 drives the release link 13 to move, and the boss 133 acts on the half-locking pawl 6 and pushes the half-locking pawl 6 to rotate, so that a half-locking unlocking function is achieved; the middle part of the release connecting rod 13 is provided with a bulge 134, and the two states of the free running and the real running of the release connecting rod 13 are realized through the contact and separation of the pushing arm 31 of the lock tongue 3 and the bulge 134.
As shown in fig. 5, when the lock tongue 3 is in the fully locked position, the pushing arm 31 of the lock tongue 3 acts on the protrusion 134 to release the release link 13 from engagement with the half-lock pawl 6, and the boss 133 of the release link 13 cannot push the half-lock pawl 6 to rotate, so that the half-lock pawl 6 is in a walk-empty state; when the lock tongue 3 rotates from the full locking position to the half locking position, the pushing arm 31 does not press the protrusion 134 of the release link 13 any more, the release link 13 returns to the initial position engaged with the half locking pawl 6 under the action of the return spring 16, and the protrusion 133 of the release link 13 can push the half locking pawl 6 to move, so that the lock tongue is in a running state.
The return spring 16 is sleeved on the bending structure of the bottom plate 1, a first elastic arm of the return spring 16 is limited on the side surface of the release connecting rod 13, so that the release connecting rod 13 always bears torsion swinging towards the half-locking pawl 6, and a second elastic arm of the return spring 16 is fixed on the bottom plate 1.
The support connecting rod 17 is sleeved on the rivet 18 and rotates around the rivet 18; the rivet 18 is fixed on the bottom plate 1 in a riveting way. One end of the tension spring 19 is fixed on the bending structure of the bottom plate 1, the other end of the tension spring is fixed on the supporting connecting rod 17, and lifting force is provided for the engine cover by pulling the supporting connecting rod 17.
The signal indicating switch 20 is used for indicating the state of the full locking pawl 8, and when the full locking pawl 8 is engaged with the lock tongue 3, the signal indicating switch 20 is in open circuit; when the full lock pawl 8 is disengaged from the locking bolt 3, the signal indicates that the switch 20 is in the path.
One end of the switch pressing piece 21 is fixed on the bottom plate 1 through a screw 22, and the other end of the switch pressing piece presses on the signal indication switch 20 to fix and limit the signal indication switch 20 installed on the bottom plate 1.
When the engine cover lock needs to be opened, the operating handle drives the release lever 11 to rotate through the pull wire, the release lever 11 drives the release deflector rod 12 which is coaxially and fixedly connected to rotate, the cam 124 of the release deflector rod 12 pushes the full lock pawl 8 to rotate, so that the full lock pawl 8 and the full lock engagement position 34 of the lock tongue 3 are disengaged to realize the full locking function, at the moment, the engine cover is in a state that the half lock pawl 6 is engaged with the half lock engagement position 33 of the lock tongue, the full lock pawl 8 triggers the signal indication switch 20, the push arm 31 of the lock tongue 3 is not abutted on the release connecting rod 13 any more, the release connecting rod 13 returns to the initial position under the action of the return spring 16, and when the operating handle is pulled again, the release lever 11 drives the release deflector rod 12 to rotate again, the release connecting rod 13 in a running state is pushed by the release connecting rod 13, so that the half lock pawl 6 and the half lock pawl 6 are disengaged from the half lock position 33 at the moment, and the half lock is kept at a certain degree of locking function under the lifting function of the lifting connecting rod 17 is realized.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (10)
1. The double-pull automobile engine cover lock is characterized by comprising a bottom plate, a back plate, a lock tongue shaft, a lock tongue spring, a half-lock pawl shaft, a full-lock pawl shaft, a pawl spring, a release lever, a release deflector rod, a release connecting rod, a rotating shaft, a return spring and a return spring;
the lock tongue is sleeved on the lock tongue shaft and rotates around the lock tongue shaft on the plane of the bottom plate;
one end of the lock tongue shaft is fixed on the bottom plate, and the other end of the lock tongue shaft is fixed on the back plate;
The spring bolt spring is sleeved on the spring bolt shaft and positioned between the spring bolt and the back plate, and is provided with a first spring arm limited on the spring bolt and a second spring arm limited on the back plate;
the half-locking pawl is sleeved on the half-locking pawl shaft and rotates around the half-locking pawl shaft;
the half-lock pawl shaft is fixed on the bottom plate;
the full-locking pawl is sleeved on the full-locking pawl shaft and rotates around the full-locking pawl shaft;
the full-locking pawl shaft is fixed on the bottom plate;
The pawl spring is sleeved on the bending structure of the bottom plate and is provided with a first elastic arm limited on the bottom plate and a second elastic arm limited on the half-lock pawl or the full-lock pawl, and the half-lock pawl and the full-lock pawl respectively apply a pawl spring to enable the half-lock pawl and the full-lock pawl to keep a tendency of rotating towards the meshing direction of the lock tongue under the torsion force of the pawl spring;
the release rod is sleeved on the rotating shaft and rotates around the rotating shaft;
the release deflector rod is sleeved on the rotating shaft, is positioned between the bottom plate and the release rod, is connected with the release rod and rotates coaxially;
The release connecting rod is connected to the release deflector rod, is positioned between the bottom plate and the release deflector rod, is interlocked with the release deflector rod, is overlapped on the half-lock pawl surface towards one side of the bottom plate, and is abutted on the half-lock pawl under the action of the return spring;
the rotating shaft is fixed on the bottom plate;
The reset spring is positioned between the release lever and the release deflector rod and is provided with a first elastic arm limited on the bottom plate and a second elastic arm fixed on the release lever;
The return spring is sleeved on the bending structure of the bottom plate and is provided with a first elastic arm limited on the release connecting rod and a second elastic arm fixed on the bottom plate.
2. The dual pull automotive bonnet lock of claim 1, further comprising a support link, a rivet, and a tension spring; the rivet is fixed on the bottom plate; the support connecting rod is sleeved on the rivet and rotates around the rivet on the plane of the bottom plate; one end of the tension spring is fixed on the bottom plate, and the other end of the tension spring is fixed on the support connecting rod.
3. The double pull car bonnet lock as claimed in claim 2, wherein the support link is depressed to a lowermost position and the tension spring is in a maximum tension state when the bonnet lock is in a fully locked state; when the engine cover lock is in a half-locking state, the supporting connecting rod is pressed to the middle position, and the tension spring is in a half-stretching state; when the engine cover lock is in an open state, the supporting connecting rod provides an engine cover lifting force under the action of the tension spring in a pre-stretching state.
4. The double pull car bonnet lock as claimed in claim 1, wherein the half lock pawl and the full lock pawl are located on opposite sides of the same rotation face of the tongue.
5. The dual pull automotive hood lock of claim 1, wherein the locking tongue is provided with a half-lock engagement position engaged with the half-lock pawl and a full-lock engagement position engaged with the full-lock pawl.
6. The dual pull automotive hood lock of claim 5, wherein the latch further provides a push arm located after the full lock engagement position; when the lock tongue enters the full-lock engagement position from the half-lock engagement position around the lock tongue shaft, the pushing arm acts on the release connecting rod to peel off the engagement between the release connecting rod and the half-lock pawl, so that the release connecting rod is in a blank state and the half-lock unlocking function cannot be completed; when the lock tongue rotates away from the full lock engagement position, the pushing arm does not squeeze the release connecting rod any more, the release connecting rod returns to the position engaged with the half lock pawl under the action of the return spring, and the release connecting rod is in a walking state, so that the half lock releasing function can be realized.
7. The double-pull automobile engine cover lock of claim 1, wherein the upper end of the release lever is provided with a pull wire guide groove and a pull wire clamping interface, and an anti-falling spring piece is arranged at the pull wire clamping interface.
8. The double-pull automobile engine cover lock of claim 1, wherein the lower end of the release lever is provided with two symmetrical sector steps for radially limiting the return spring, and the inner sides of the sector steps are respectively provided with a coaxial driving boss and a connecting boss; the release deflector rod is provided with a cylinder sleeved with the reset spring, and the upper end of the cylinder is provided with a driving groove and a connecting groove which are respectively matched with the driving boss and the connecting boss; the connecting boss is matched with the connecting groove, so that the release lever and the release deflector rod are connected into a whole; the driving boss is matched with the driving groove, so that the release lever can effectively drive the release deflector rod to synchronously rotate.
9. The double pull car bonnet lock as claimed in claim 1, wherein the lower end of the release lever is provided with a cam extended from a rotation center, and a cylinder for connecting the release link is provided inside the cam; one end of the release connecting rod is provided with a round hole matched with the cylinder of the release deflector rod, one side of the release connecting rod, facing the bottom plate, is provided with an irregular groove, the groove surface is lapped on the rotation plane of the half-lock pawl, the other end of the release connecting rod is provided with a boss, the boss can act on the half-lock pawl to push the half-lock pawl to rotate when the release connecting rod is in an initial position, and the middle part of the release connecting rod is provided with a boss; when the lock tongue enters a full locking process, a pushing arm of the lock tongue acts on the protrusion to peel the release connecting rod off to be meshed with the half-lock pawl; when the lock tongue rotates away from the full locking position, the pushing arm does not press the release connecting rod any more, and the release connecting rod returns to the position meshed with the half-lock pawl under the action of the return spring.
10. The dual pull car bonnet lock as defined in claim 1, further comprising a signal indication switch and a switch Guan Yapian; the signal indication switch is arranged on the bottom plate and is provided with a triggering spring piece; one end of the switch pressing sheet is pressed on the signal indication switch, and the other end of the switch pressing sheet is fixed on the bottom plate through a screw to limit the signal indication switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769670.5A CN111749560B (en) | 2020-07-30 | 2020-07-30 | Novel double-pull automobile engine hood lock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769670.5A CN111749560B (en) | 2020-07-30 | 2020-07-30 | Novel double-pull automobile engine hood lock |
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| Publication Number | Publication Date |
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| CN111749560A CN111749560A (en) | 2020-10-09 |
| CN111749560B true CN111749560B (en) | 2024-05-28 |
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| CN202010769670.5A Active CN111749560B (en) | 2020-07-30 | 2020-07-30 | Novel double-pull automobile engine hood lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114809837B (en) * | 2022-05-13 | 2023-09-26 | 上海恩井汽车科技有限公司 | Locking device with sliding pawl, motor vehicle lock and motor vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206091650U (en) * | 2016-09-30 | 2017-04-12 | 宁波市勇博车业有限公司 | Drive unlocking structure's car side door lock in two drawing |
| CN206319740U (en) * | 2016-12-28 | 2017-07-11 | 布拉诺宝陆汽车零部件（上海）有限公司 | A kind of automobile engine cover lock system |
| CN207296680U (en) * | 2017-10-10 | 2018-05-01 | 伟速达（中国）汽车安全系统有限公司 | Double drawing open-type front cover lock operating mechanisms |
| CN212317700U (en) * | 2020-07-30 | 2021-01-08 | 上海恩坦华汽车门系统有限公司 | Novel double-pull automobile engine hood lock |
-
2020
- 2020-07-30 CN CN202010769670.5A patent/CN111749560B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206091650U (en) * | 2016-09-30 | 2017-04-12 | 宁波市勇博车业有限公司 | Drive unlocking structure's car side door lock in two drawing |
| CN206319740U (en) * | 2016-12-28 | 2017-07-11 | 布拉诺宝陆汽车零部件（上海）有限公司 | A kind of automobile engine cover lock system |
| CN207296680U (en) * | 2017-10-10 | 2018-05-01 | 伟速达（中国）汽车安全系统有限公司 | Double drawing open-type front cover lock operating mechanisms |
| CN212317700U (en) * | 2020-07-30 | 2021-01-08 | 上海恩坦华汽车门系统有限公司 | Novel double-pull automobile engine hood lock |
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| CN111749560A (en) | 2020-10-09 |
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