CN219528719U - Double-pull open type front cover lock - Google Patents

Abstract

The utility model relates to a double-pull open type front cover lock, which comprises a lock body, a clamping plate and a locking claw, wherein the clamping plate and the locking claw are rotatably arranged on the lock body, and the double-pull open type front cover lock is characterized by further comprising a blocking arm arranged between the clamping plate and the locking claw; the clamping plate and the locking claw realize locking and unlocking functions through a rotation relationship and a meshing point matched with each other, and the blocking arm is arranged between the clamping plate and the locking claw and is matched with the clamping plate and the locking claw respectively to realize transitional control of locking and unlocking. According to the double-pull open type front cover lock, on one hand, the front cover is opened by pulling the handle in the cockpit twice, and the driving convenience is improved; on the other hand, the lock body is meshed with a blocking arm structure, so that transition conversion of the primary lock and the secondary lock of the lock body is stable and reliable; in addition, the spring torsion spring is adopted to replace the traditional tension spring, so that the service life of the product is prolonged, the sound quality is improved, and the driving feeling is improved.

Description

Double-pull open type front cover lock

Technical Field

The utility model relates to the technical field of automobile lock structures, in particular to a double-pull open type front cover lock.

Background

Passenger cars are typically equipped with an engine cover to protect the engine and to shield noise generated from the engine. The hood is connected to the vehicle body via a hinge and can be opened or closed with respect to the vehicle body, the hood is connected to an in-vehicle opening handle via a cable, and the hood is opened by being unlocked by pulling of the in-vehicle opening handle. The double pull opening structure is used for preventing the engine cover from being accidentally opened due to moving air generated by the running of the vehicle when the engine cover is not completely locked.

When most passenger cars open the front cover, the inner opening handle is pulled in the cockpit to unlock the primary lock of the front cover lock, and then the passenger cars walk out of the cockpit to reach the front end of the passenger cars, and hands extend into the front cover cabin to open the secondary lock by pulling the opening handle, so that the front cover is opened. The operation process of opening the front cover is troublesome, and the front cover is easy to dirty hands and takes time and labor. In addition, most front cover locks at present generally adopt a sprung tension spring design, and the service life and sound quality of the front cover locks cannot meet the higher and higher requirements of consumers on passenger cars.

Disclosure of Invention

The present utility model is directed to solving the above-mentioned problems, and further provides a double-pull opening type front cover lock.

In order to solve the problems, the utility model adopts the following technical scheme:

the double-pull open type front cover lock comprises a lock body, a clamping plate and a locking claw which are rotatably arranged on the lock body, and is characterized by further comprising a blocking arm, wherein the blocking arm is arranged between the clamping plate and the locking claw and is fixed on a cover plate and a lock plate;

the clamping plate is provided with a clamping plate first meshing point and a clamping plate second meshing point;

the pawl has a pawl first engagement point and a pawl second engagement point;

the blocking arm has a blocking arm first engagement point and a blocking arm second engagement point;

the locking claw is engaged with the first engagement point of the blocking arm through the engagement between the first engagement point of the locking claw and the first engagement point of the clamping plate, so that the clamping plate is in a primary locking position, and in the primary locking position, the second engagement point of the locking claw is engaged with the first engagement point of the blocking arm;

when the rotation of the locking claw is completed for unlocking once, the first engagement point of the locking claw and the first engagement point of the clamping plate are in dislocation disengagement, the clamping plate rotates until the first engagement point of the clamping plate is in contact engagement with the second engagement point of the blocking arm, the second engagement point of the clamping plate is in engagement with the first engagement point of the locking claw, and the clamping plate is limited at a half-locking position;

when the locking claw rotates again to complete secondary unlocking, the clamping plate rotates until the second meshing point of the clamping plate is disengaged from the first meshing point of the locking claw, and at the moment, the clamping plate is completely sprung up, and the lock body is in a full-open state.

The locking plate is fixedly connected with the bottom plate through a clamping plate rivet, a stop claw rivet and a blocking arm rivet, and the clamping plate is fixed through the clamping plate rivet and is rotatably arranged on the bottom plate and the locking plate; the locking claw is fixed through a locking claw rivet and is rotatably arranged on the bottom plate and the locking plate; the blocking arm is fixed through a blocking arm rivet and is rotatably arranged on the cover plate and the lock plate.

One side of the clamping plate and the locking claw is a bottom plate, the other side of the clamping plate and the locking claw is covered with a cover plate, and the clamping plate and the locking claw rotate around the clamping plate rivet and the locking claw rivet respectively between the cover plate and the bottom plate; one side of the blocking arm is contacted with the cover plate, the other side of the blocking arm is covered with a blocking arm gasket, the blocking arm and the blocking arm gasket are fixed on the cover plate through blocking arm rivets, and the blocking arm rotates around the blocking arm rivets.

The spring is installed on the apron, the apron has the apron third joint that is used for the cover to hang the spring main part of spring, is used for hanging the apron first joint of the first spring arm of spring and is used for hanging the second joint of the second spring arm of spring.

The first spring arm is abutted with the lock ring and used for providing a bouncing function for the first spring arm.

The blocking arm torsion spring main body is hung on the blocking arm rivet, the blocking arm torsion spring first spring arm is hung on the blocking arm, and the blocking arm torsion spring second spring arm is hung on the cover plate.

The cardboard torsional spring main part articulates on the cardboard rivet, and cardboard torsional spring first spring arm articulates on the cardboard, and cardboard torsional spring second spring arm articulates on the apron.

According to the double-pull open type front cover lock, on one hand, the front cover is opened by pulling the handle in the cockpit twice, and the driving convenience is improved; on the other hand, the lock body is meshed with a blocking arm structure, so that transition conversion of the primary lock and the secondary lock of the lock body is stable and reliable; in addition, the spring torsion spring is adopted to replace the traditional tension spring, so that the service life of the product is prolonged, the sound quality is improved, and the driving feeling is improved.

Drawings

Fig. 1: the structure of the double-pull open type front cover lock of the first embodiment is schematically shown;

fig. 2: FIG. 1 is a rear view;

fig. 3: a specific structural schematic diagram of the stop pawl, the clamping plate and the blocking arm;

fig. 4: a state diagram of the matching positions of the locking claw, the clamping plate and the blocking arm in the opening process of the front cover lock;

fig. 5: and the front cover is locked in a state diagram of the matching positions of the stop pawl, the clamping plate and the blocking arm in the locking process.

In the figure, 1, a lock plate, 2, a bottom plate, 3, a shaft sleeve, 4, a clamping plate, 5, a locking claw, 6, a cover plate, 7, a spring torsion spring, 8, a blocking arm torsion spring, 9, a clamping plate torsion spring, 10, a clamping plate rivet, 11, a locking claw rivet, 12, a blocking arm rivet, 13, a blocking arm, 14, a blocking arm gasket, 15, an opening stay wire, 16, a switch wire harness, 17 and a locking ring.

Detailed Description

The present utility model will be described in detail below with reference to the accompanying drawings.

Example 1

A double-pull open type front cover lock comprises a lock shell composed of a lock plate 1 and a bottom plate 2, a clamping plate 4, a stop claw 5, a blocking arm 1, a spring torsion spring 7, an opening stay 15 and a switch wire harness 16, wherein the clamping plate 4, the stop claw 5, the blocking arm 1, the spring torsion spring 7, the opening stay 15 and the switch wire harness 16 are arranged on the lock shell. The switch wire harness 16 is clamped and fixed on the bottom plate 2, the opening pull wire 15 is connected to one end of the locking claw 5, the clamping plate 4 is provided with a hook groove matched with the locking ring 17, and the spring 7 acts on the locking ring 17 and provides a spring function for the locking ring 17.

The lock plate 1 and the bottom plate 2 are fixedly connected through a clamping plate rivet 10, a locking claw rivet 11 and a blocking arm rivet 12, so that the lock body forms a semi-closed box-shaped structure. The clamping plate 4 is fixed through a clamping plate rivet 10 and is rotatably arranged on the lock plate 1 and the bottom plate 2, the locking claw 5 is fixed through a locking claw rivet 11 and is rotatably arranged on the lock plate 1 and the bottom plate 2, and the blocking arm 13 is fixed through a blocking arm rivet 12 and is rotatably arranged on the cover plate 6 and the lock plate 1.

The bottom plate 2 is arranged on one side of the clamping plate 4 and the locking claw 5, and the cover plate 6 is covered on the other side of the clamping plate, so that the clamping plate 4 and the locking claw 5 can rotate around the clamping plate rivet 10 and the locking claw rivet 11 respectively between the cover plate 6 and the bottom plate 2. One side of the blocking arm 13 is in contact with the cover plate 6, the other side of the blocking arm 13 is covered with a blocking arm gasket 14, one side of the blocking arm 13 is fixed on the lock plate 1 through a blocking arm rivet 12, and the other side of the blocking arm 13 and the blocking arm gasket 14 are fixed on the cover plate 6 through the blocking arm rivet 12, so that the blocking arm 13 can rotate around the blocking arm rivet 12.

The clamping plate 4 and the locking claw 5 realize locking and unlocking functions through a rotation relationship and mutually matched engagement points, and the blocking arm 13 is arranged between the clamping plate 4 and the locking claw 5 and respectively matched with the clamping plate 4 and the locking claw 5 to realize transitional control of locking and unlocking.

The clamping plate 4 is respectively provided with a clamping plate first meshing point a and a clamping plate second meshing point b, the locking claw 5 is respectively provided with a locking claw first meshing point c and a locking claw second meshing point d, and the blocking arm 13 is respectively provided with a blocking arm first meshing point e and a blocking arm second meshing point f.

In the primary locking position (fully locked state), the first dog engagement point c engages the first catch plate engagement point a and the second dog engagement point d engages the first stop arm engagement point e.

In the second-stage locking position (half-locking state after the first-stage unlocking), the first engagement point c of the locking pawl and the first engagement point a of the catch plate are disengaged, the first engagement point a of the catch plate and the second engagement point f of the blocking arm are engaged, and the second engagement point b of the catch plate is engaged with the first engagement point c of the locking pawl.

In the unlocked position (fully open state after secondary unlocking), the catch plate rotates until catch plate second engagement point b is disengaged from catch pawl first engagement point c.

The spring 7 is installed on the cover plate 6, the cover plate 6 is provided with a cover plate first hanging point 6.1, a cover plate second hanging point 6.2 and a cover plate third hanging point 6.3, wherein the cover plate third hanging point 6.3 is of a flanging semicircular structure and is used for sleeving a torsion spring main body of the spring 7, the cover plate first hanging point 6.1 is of a flanging chute structure and is used for hanging a first spring arm 7.1 of the spring 7, the spring 17 is provided with a spring function through the first spring arm 7.1, and the cover plate second hanging point 6.2 is of a flanging groove structure and is used for hanging a second spring arm 7.2 of the spring 7.

The blocking arm torsion spring 8 is hung on the blocking arm rivet 12 in a main body, the blocking arm torsion spring first spring arm 8.1 is hung on the blocking arm 13, and the blocking arm torsion spring second spring arm 8.2 is hung on the cover plate fourth hanging point 6.4 of the cover plate 6.

The main body of the clamping plate torsion spring 9 is hung on a clamping plate rivet 10, a first spring arm 9.1 of the clamping plate torsion spring is hung on the clamping plate 4, and a second spring arm 9.2 of the clamping plate torsion spring is hung on a fifth hanging point 6.5 of a cover plate of the cover plate 6.

The double-pull opening type front cover lock of the embodiment comprises the following opening process:

i, primary lock-transitional lock

In the primary lock position, the first engagement point c of the pawl engages the first engagement point a of the catch plate and the second engagement point d of the pawl engages the first engagement point e of the blocking arm;

the opening stay 15 is pulled, the locking claw 5 rotates clockwise under the action of driving force, meanwhile, the first engagement point e of the blocking arm is driven by the second engagement point d of the locking claw to enable the blocking arm 13 to rotate anticlockwise, meanwhile, the first engagement point a of the clamping plate and the first engagement point c of the locking claw start to be disengaged, when the first engagement point a of the clamping plate and the first engagement point c of the locking claw are disengaged, the clamping plate torsion spring 9 and the spring torsion spring 7 simultaneously release elastic potential energy, and the locking ring 17 is jointly driven to move upwards until the first engagement point a of the clamping plate and the second engagement point f of the blocking arm are contacted and abutted, and at the moment, the locking ring 17 enters a transitional locking position.

II, transition lock-two-stage lock

The opening stay 15 is loosened, the locking claw 5 is reset anticlockwise under the drive of the blocking arm torsion spring 8, the blocking arm 13 is reset anticlockwise under the drive of the blocking arm torsion spring 8, the first clamping plate engaging point a and the second blocking arm engaging point f are separated from contact until the second clamping plate engaging point b is engaged with the first locking claw engaging point c, at the moment, the locking ring 17 enters a secondary locking position, and meanwhile, the clamping plate 4 rotates to trigger the switch wire harness 16, so that signal conversion is realized.

III, second-level Lock- & gtunlocking

When the opening stay 15 is pulled for the second time, the locking claw 5 moves clockwise under the action of the driving force, and when the second engagement point b of the clamping plate is disengaged from the first engagement point c of the locking claw, the clamping plate torsion spring 9 and the spring torsion spring 7 continue to release elastic potential energy, and the locking ring 17 is driven to move upwards continuously until the clamping plate 4 reaches the limit position and stops, and at the moment, the locking ring 17 is fully sprung up, so that the cover can be opened.

The double-pull opening type front cover lock of the embodiment comprises the following opening process:

i, locking-in-secondary lock

The locking ring 17 falls down, contacts the catch plate 4 and the pop-up torsion spring 7, and drives both to rotate in the counterclockwise direction. When the clamping plate 4 rotates to a certain position, the blocking arm 13 starts to reset clockwise under the drive of the blocking arm torsion spring 8, the first engaging point e of the blocking arm 13 drives the second engaging point d of the locking claw 5 to enable the locking claw 5 to rotate anticlockwise until the second engaging point b of the clamping plate 4 is engaged with the first engaging point c of the locking claw 5, and at the moment, the locking ring 17 reaches the secondary locking position.

II, second-level lock-first-level lock

The locking ring 17 continues to fall, driving the catch plate 4 and the sprung torsion spring 7 to continue to rotate in the counterclockwise direction until the first engagement point a of the catch plate 4 engages the first engagement point c of the holding pawl 5, at which point the locking ring 17 reaches the primary locking position. At the same time, the rotation of the clamping plate 4 releases the triggering switch harness 16, and the signal is converted again.

The double-pull open type front cover lock has the following technical effects:

1. the front cover is opened by pulling the handle in the cockpit twice, the primary lock is opened by pulling the handle for the first time, and the secondary lock is opened by pulling the handle for the second time, so that the trouble that a driver needs to go to the front end of the vehicle to open the secondary lock is eliminated;

2. the blocking arm structure is reasonably arranged and adopted, so that the problem of unstable transition of the primary lock and the secondary lock is effectively solved;

3. the service life of the product is prolonged, the sound quality is improved, and the higher-quality driving feeling is given to consumers.

Claims (7)

1. The double-pull open type front cover lock comprises a lock body, a clamping plate and a locking claw, wherein the clamping plate and the locking claw are rotatably arranged on the lock body, and the double-pull open type front cover lock is characterized by further comprising a blocking arm, wherein the blocking arm is arranged between the clamping plate and the locking claw;

the clamping plate is provided with a clamping plate first meshing point and a clamping plate second meshing point;

the pawl has a pawl first engagement point and a pawl second engagement point;

the blocking arm has a blocking arm first engagement point and a blocking arm second engagement point;

the locking claw is engaged with the first engagement point of the blocking arm through the engagement between the first engagement point of the locking claw and the first engagement point of the clamping plate, so that the clamping plate is in a primary locking position, and in the primary locking position, the second engagement point of the locking claw is engaged with the first engagement point of the blocking arm;

when the rotation of the locking claw is completed for unlocking once, the first engagement point of the locking claw and the first engagement point of the clamping plate are in dislocation disengagement, the clamping plate rotates until the first engagement point of the clamping plate is in contact engagement with the second engagement point of the blocking arm, the second engagement point of the clamping plate is in engagement with the first engagement point of the locking claw, and the clamping plate is limited at a half-locking position;

when the locking claw rotates again to complete secondary unlocking, the clamping plate rotates until the second meshing point of the clamping plate is disengaged from the first meshing point of the locking claw, and at the moment, the clamping plate is completely sprung up, and the lock body is in a full-open state.

2. A double pull open front cover lock as set forth in claim 1, wherein,

the locking plate is fixedly connected with the bottom plate through a clamping plate rivet, a stop claw rivet and a blocking arm rivet, and the clamping plate is fixed through the clamping plate rivet and is rotatably arranged on the bottom plate and the locking plate; the locking claw is fixed through a locking claw rivet and is rotatably arranged on the bottom plate and the locking plate; the blocking arm is fixed through a blocking arm rivet and is rotatably arranged on the cover plate and the lock plate.

3. A double pull open front cover lock as set forth in claim 2, wherein,

one side of the clamping plate and the locking claw is a bottom plate, the other side of the clamping plate and the locking claw is covered with a cover plate, and the clamping plate and the locking claw rotate around the clamping plate rivet and the locking claw rivet respectively between the cover plate and the bottom plate; one side of the blocking arm is contacted with the cover plate, the other side of the blocking arm is covered with a blocking arm gasket, the blocking arm and the blocking arm gasket are fixed on the cover plate through blocking arm rivets, and the blocking arm rotates around the blocking arm rivets.

4. A double pull open front cover lock as set forth in claim 1, wherein,

the spring is installed on the apron, the apron has the apron third joint that is used for the cover to hang the spring main part of spring, is used for hanging the apron first joint of the first spring arm of spring and is used for hanging the second joint of the second spring arm of spring.

5. A double pull open front cover lock as set forth in claim 4, wherein,

the first spring arm is abutted with the lock ring and used for providing a bouncing function for the first spring arm.

6. A double pull open front cover lock as set forth in claim 2, wherein,

the blocking arm torsion spring main body is hung on the blocking arm rivet, the blocking arm torsion spring first spring arm is hung on the blocking arm, and the blocking arm torsion spring second spring arm is hung on the cover plate.

7. A double pull open front cover lock as set forth in claim 2, wherein,

the cardboard torsional spring main part articulates on the cardboard rivet, and cardboard torsional spring first spring arm articulates on the cardboard, and cardboard torsional spring second spring arm articulates on the apron.