Self-suction and self-opening type machine cover lock

Abstract

The utility model provides a self-absorption and self-opening type machine cover lock. The self-absorption and self-opening type machine cover lock comprises a base plate, a clamping plate and a locking claw, wherein the clamping plate and the locking claw are rotationally installed on the base plate and used in cooperation. An electric driving assembly is installed on the base plate, the electric driving assembly comprises a self-suction arm hinged to the base plate, a seat body fixedly connected with the base plate and a driving cam hinged to the seat body, the self-suction arm is installed between the clamping plate and the locking claw, and the driving cam is in driving connection with the self-suction arm; when the machine cover lock is in a semi-locking state, the driving cam rotates, and the self-suction arm rotates and pushes the clamping plate, so that the machine cover lock reaches a full-locking state; during unlocking, the driving cam rotates reversely, and the self-suction arm rotates reversely and pushes the locking claw, so that the machine cover lock is unlocked; the self-absorption and self-opening type machine cover lock overcomes the defects that an existing machine cover lock is tedious and labor-consuming in operation.

Description

Technical Field

[0001] The utility model relates to the field of machine cover locks, in particular to a self-priming and self-opening machine cover lock. Background Art

[0002] With the improvement of people's quality of life, cars have become more and more popular, and the front hood lock is an important part of the car. The existing front hood lock includes a base plate, a card plate and a locking claw. The card plate is hinged on the base plate through a card plate rotating shaft, and a card plate torsion spring is mounted on the card plate rotating shaft; the locking claw is hinged on the base plate through a locking claw rotating shaft, and a locking claw torsion spring is mounted on the locking claw rotating shaft. The locking claw is located on one side of the card plate and is used to unlock or lock the card plate.

[0003] Traditional hood locks require two manual operations to open the hood, which is complicated and inconvenient to use. When closing the hood, it takes a lot of force to completely close the hood. With the development of electric vehicle technology, the hood of the motor vehicle has gradually become the front luggage compartment, and users use the hood more and more frequently. The existing hood lock system is cumbersome and laborious to operate. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide a self-priming and self-opening hood lock to overcome the defects of the existing hood locks that the operation is complicated and laborious.

[0006] (II) Technical solution

[0007] In order to solve the technical problem, the utility model provides a self-priming and self-opening hood lock, including a base plate, a card plate and a stop claw that are rotatably mounted on the base plate and used in conjunction with each other. An electric drive assembly is mounted on the base plate, and the electric drive assembly includes a self-priming arm hinged on the base plate, a seat body fixedly connected to the base plate, and a driving cam hinged on the seat body. The self-priming arm is mounted between the card plate and the stop claw, and the driving cam is drivingly connected to the self-priming arm; when the hood lock is in a semi-locked state, the driving cam rotates, the self-priming arm rotates and pushes the card plate, so that the hood lock reaches a fully locked state; when unlocking, the driving cam rotates in the opposite direction, the self-priming arm rotates in the opposite direction and pushes the stop claw, so that the hood lock is unlocked.

[0008] In some embodiments, a pushing portion is provided at one end of the self-priming arm, and a stop cam is installed at the other end thereof, the pushing portion is placed between the clamping plate and the stopping claw, and the stop cam is resting on the driving cam; a stop column corresponding to the pushing portion is provided on the clamping plate, and a stop block corresponding to the pushing portion is provided on the stopping claw.

[0009] In some embodiments, the electric drive assembly further comprises a drive motor and a reduction gear set mounted in the seat body, the drive motor is drivingly connected to the drive cam via the reduction gear set. The reduction gear set comprises a primary gear and a secondary gear rotatably mounted in the seat body, the primary gear and the secondary gear are meshed, a worm is mounted on the drive motor and meshes with the primary gear, and the secondary gear is connected to the drive cam via a drive shaft.

[0010] In some embodiments, the self-priming arm includes a self-priming rod and a transmission rod hinged on the base plate, the pushing portion is arranged at one end of the self-priming rod, and the stop cam is installed at the end of the transmission rod; the self-priming rod can be driven and connected to the transmission rod through a clutch arm.

[0011] In some embodiments, a manual opening arm is hinged on the base plate, and the manual opening arm is used to manually unlock the hood lock after the electric drive assembly fails. One end of the manual opening arm is provided with a driving portion corresponding to the block; one end of the clutch arm is hinged on the manual opening arm, and the other end is provided with a latch pin, the transmission rod is provided with a waist-shaped groove adapted to the latch pin, and the end of the self-priming rod away from the pushing portion is provided with a latch slot that can engage with the latch pin.

[0012] In some embodiments, the self-priming rod and the transmission rod are hinged on the base plate through a self-priming arm rivet shaft, and a self-priming arm torsion spring is mounted on the self-priming arm rivet shaft, one end of the self-priming arm torsion spring is abutted on the base plate, and the other end is abutted on the self-priming rod; a support is fixed between the base plate and the base body, and an opening arm torsion spring is mounted on the support, one end of the opening arm torsion spring is abutted on the manual opening arm, and the other end is abutted on the support.

[0013] In some embodiments, a support is fixed between the base plate and the base body, and the support is respectively provided with a card plate switch and a stopping claw switch at the card plate and the stopping claw, a first pressure block corresponding to the card plate switch is provided on the card plate, and a second pressure block corresponding to the stopping claw switch is provided on the stopping claw.

[0014] In some embodiments, a secondary gear switch is installed in the seat body at a position corresponding to the secondary gear, an annular pressure block corresponding to the secondary gear switch is arranged on the secondary gear, and a groove is arranged on the outer circumferential wall of the annular pressure block.

[0015] In some embodiments, a lifter is hinged on the base plate, and a spring is installed between the lifter and the base plate.

[0016] (III) Beneficial effects

[0017] The utility model provides a self-priming and self-opening hood lock, which is additionally provided with an electric drive component. Through the cooperation of the self-priming arm, the driving cam and the driving motor, when the hood lock is in a semi-locked state, the driving motor drives the driving cam to rotate, the self-priming arm rotates and pushes the card plate to rotate, so that the hood lock reaches a fully locked state; when unlocking, the driving motor drives the driving cam to rotate in the opposite direction, the self-priming arm rotates in the opposite direction and pushes the locking claw to rotate, so that the hood lock is unlocked; it adopts an electric method to realize automatic locking and automatic unlocking of the hood lock, which is easy to operate and labor-saving; in addition, a manual opening arm and a clutch arm are also provided, so that the hood lock can be manually unlocked after the electric drive component fails, thereby ensuring safety in use; the defects of the existing hood lock being complicated and labor-intensive to operate are overcome. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a three-dimensional diagram of a self-priming and self-opening hood lock of the utility model;

[0020] Figure 2 This is an exploded view of a self-priming and self-opening hood lock of the utility model;

[0021] Figure 3 This is an exploded view of an electric drive assembly of a self-priming and self-opening hood lock of the utility model;

[0022] Figure 4 This is a three-dimensional diagram of a self-priming and self-opening hood lock of the utility model with the seat body removed;

[0023] Figure 5 This is a three-dimensional diagram of a self-priming and self-opening hood lock of the utility model after removing the seat body and the support part;

[0024] Figure 6 This is a three-dimensional diagram of a self-priming and self-opening hood lock of the utility model when it is electrically unlocked or locked;

[0025] Figure 7 A three-dimensional diagram of a self-priming and self-opening cover lock self-priming arm of the utility model;

[0026] Figure 8 This is a three-dimensional diagram of a self-priming and self-opening hood lock of the utility model when it is manually unlocked;

[0027] The names of the components corresponding to the reference numerals in the figure are: 1. Base plate; 2. Card plate; 201. Stop column; 202. First pressure block; 203. First locking groove; 204. Second locking groove; 205. First clamping portion; 206. Second clamping portion; 3. Stop claw; 301. Block; 302. Second pressure block; 303. Locking portion; 4. Self-priming arm; 41. Stop cam; 42. Self-priming rod; 43. Transmission rod; 44. Clutch arm; 45. Self-priming arm rivet shaft; 46. Self-priming arm torsion spring; 401 , pushing part; 421, slot; 431, waist-shaped slot; 441, latch; 51, seat; 52, driving cam; 53, driving motor; 54, primary gear; 55, secondary gear; 56, worm; 57, driving shaft; 58, secondary gear switch; 551, annular pressure block; 552, groove; 6, manual opening arm; 61, opening arm torsion spring; 601, driving part; 7, support; 9, card switch; 10, stop claw switch; 11, lifter; 12, spring; 13, lock hook. DETAILED DESCRIPTION

[0028] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0030] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0031] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0032] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0033] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0034] See also Figures 1 to 8 The utility model provides a self-priming and self-opening hood lock, comprising a base plate 1, a card plate 2 and a stop claw 3 rotatably mounted on the base plate 1 and used in conjunction with each other, wherein the card plate 2 is provided with a first lock groove 203 and a second lock groove 204 that are interconnected. The card plate 2 is provided with a first clamping portion 205 and a second clamping portion 206, and the stop claw 3 is provided with a locking portion 303; when the locking portion 303 is clamped with the first clamping portion 205, the external lock hook 13 is placed in the first lock groove 203, and the hood lock is in a semi-locked state. When the locking portion 303 is clamped with the second clamping portion 206, the external lock hook 13 is placed in the second lock groove 204, and the hood lock is in a fully locked state.

[0035] See also Figures 1 to 8 The base plate 1 is provided with an electric drive assembly, which includes a self-priming arm 4 hinged on the base plate 1, a seat body 51 fixedly connected to the base plate 1, and a driving cam 52 hinged on the seat body 51. The self-priming arm 4 is installed between the card plate 2 and the stop claw 3, and the driving cam 52 is drivingly connected to the self-priming arm 4. When the hood lock is in a semi-locked state, the driving cam 52 rotates, the self-priming arm 4 rotates and pushes the card plate 2, so that the hood lock reaches a fully locked state; when unlocking, the driving cam 52 rotates in the opposite direction, the self-priming arm 4 rotates in the opposite direction and pushes the stop claw 3, so that the hood lock is unlocked.

[0036] In some embodiments, Figure 5 and Figure 6 As shown, a push part 401 is provided at one end of the self-priming arm 4, and a stop cam 41 is installed at the other end of the self-priming arm 4. The push part 401 is placed between the card plate 2 and the stop claw 3, and the stop cam 41 is placed on the driving cam 52. The card plate 2 is provided with a stop column 201 corresponding to the push part 401, and the stop claw 3 is provided with a stop block 301 corresponding to the push part 401. When locked, the push part 401 pushes the stop column 201 to rotate the card plate 2; when unlocked, the push part 401 rotates in the opposite direction and pushes the stop block 301 to rotate the stop claw 3.

[0037] In some embodiments, Figure 3 As shown, the electric drive assembly also includes a drive motor 53 and a reduction gear set installed in the seat body 51, and the drive motor 53 is connected to the drive cam 52 through the reduction gear set. Wherein, the seat body 51 is a split structure, including an upper cover and a lower cover fixed to each other. The reduction gear set includes a primary gear 54 and a secondary gear 55 rotatably installed in the seat body 51, and the primary gear 54 and the secondary gear 55 are meshed. A worm 56 meshing with the primary gear 54 is installed on the drive motor 53, and the secondary gear 55 is connected to the drive cam 52 through a drive shaft 57, and the drive shaft 57 passes through the seat body 51 and is connected to the drive cam 52. During electric drive, the drive motor 53 rotates, the drive motor 53 drives the primary gear 54 to rotate, the primary gear 54 drives the secondary gear 55 to rotate, and the secondary gear 55 drives the drive cam 52 to rotate through the drive shaft 57, and then the drive cam 52 drives the self-priming arm 4 to rotate.

[0038] In some embodiments, Figure 7 and Figure 8 As shown, the self-priming arm 4 includes a self-priming rod 42 and a transmission rod 43 hinged on the base plate 1, a pushing portion 401 is arranged at one end of the self-priming rod 42, and a stop cam 41 is installed at the end of the transmission rod 43; the self-priming rod 42 can be driven and connected to the transmission rod 43 through a clutch arm 44. A manual opening arm 6 is hinged on the base plate 1, and the manual opening arm 6 is used to manually unlock the cover lock after the electric drive component fails to ensure the safety of use. A driving portion 601 corresponding to the stop block 301 is arranged at one end of the manual opening arm 6, and the manual opening arm 6 can drive the stop claw 3 to rotate and unlock through the driving portion 601 and the stop block 301. One end of the clutch arm 44 is hinged on the manual opening arm 6, and a bayonet 441 is arranged at the other end. A waist-shaped groove 431 adapted to the bayonet 441 is arranged on the transmission rod 43, and a bayonet 421 that can be engaged with the bayonet 441 is arranged at one end of the self-priming rod 42 away from the pushing portion 401. When opening manually, the manual opening arm 6 can be driven to rotate by pulling the wire. While the manual opening arm 6 drives the stopping claw 3 to rotate, the manual opening arm 6 drives the clutch arm 44 to rotate. The clutch arm 44 drives the bayonet 441 to separate from the slot 421. At this time, the self-priming rod 42 and the transmission rod 43 are not linked to interrupt the self-priming function, thereby ensuring the reliability of manual opening; during self-priming or self-opening, the bayonet 441 is placed in the slot 421, and the self-priming rod 42 and the transmission rod 43 are linked.

[0039] In some embodiments, Figure 4 and Figure 7As shown, the self-priming rod 42 and the transmission rod 43 are hinged on the base plate 1 through the self-priming arm rivet shaft 45, and the self-priming arm rivet shaft 45 is sleeved with a self-priming arm torsion spring 46, one end of the self-priming arm torsion spring 46 is against the base plate 1, and the other end is against the self-priming rod 42, and the self-priming arm torsion spring 46 is used to reset the self-priming arm. A support 7 is fixed between the base plate 1 and the base body 51, and an opening arm torsion spring 61 is sleeved on the support 7, one end of the opening arm torsion spring 61 is against the manual opening arm 6, and the other end is against the support 7, and the opening arm torsion spring 61 is used to reset the manual opening arm 6.

[0040] In some embodiments, Figures 4 to 6 As shown, a support 7 is fixed between the base plate 1 and the base body 51, and the support 7 is provided with a card switch 9 and a stop claw switch 10 at the card plate 2 and the stop claw 3, respectively. The card plate 2 is provided with a first pressing block 202 corresponding to the card switch 9, and the stop claw 3 is provided with a second pressing block 302 corresponding to the stop claw switch 10. The first pressing block 202 can press down the card switch 9, and the second pressing block 302 can press down the stop claw switch 10. The card switch 9 and the stop claw switch 10 are arranged to cooperate, so that the cover lock can be obtained in a semi-locked or fully locked state, and then the drive motor 53 can be controlled to rotate forward or reverse.

[0041] In some embodiments, Figure 3 As shown, a secondary gear switch 58 is installed in the seat body 51 at the corresponding secondary gear 55, and an annular pressing block 551 corresponding to the secondary gear switch 58 is arranged on the secondary gear 55. A groove 552 is arranged on the outer circumferential wall of the annular pressing block 551, and the annular pressing block 551 can press down the secondary gear switch 58. Since the motor is used to unlock and lock in a forward and reverse manner, the rotation angle of the self-priming arm must be accurately controlled, and a secondary gear switch 58 is added to facilitate the drive motor to return to the zero position; when the drive motor rotates, the annular pressing block 551 can press down the secondary gear switch 58, and when the secondary gear switch 58 is placed in the groove 552, the secondary gear switch 58 pops up, the motor returns to the zero position, and the motor stops rotating.

[0042] In some embodiments, Figure 1 and Figure 5 As shown, a lifter 11 is hinged on the base plate 1, the lifter 11 corresponds to the clamping plate 2, a spring 12 is installed between the lifter 11 and the base plate 1, and the lifter 11 is used to lift the lock hook 13 when unlocking.

[0043] The use process of this self-priming and self-opening hood lock is as follows:

[0044] See also Figure 6When self-priming (locking), the machine cover can be gently closed manually. At this time, the lock hook 13 is placed in the first lock groove 203, and the machine cover lock is in a semi-locked state; the locking claw 3 presses the locking claw switch 10, and the driving motor 53 rotates. The driving motor 53 drives the driving cam 52 to rotate clockwise through the reduction wheel group, and the driving cam 52 drives the self-priming arm 4 to rotate clockwise through the stop cam 41. The self-priming arm 4 drives the card plate 2 to rotate counterclockwise, so that the machine cover lock reaches a fully locked state; at this time, the card plate 2 presses the card plate switch 9, and the locking claw 3 presses the locking claw switch 10, and the driving motor 53 stops rotating and reverses back to the zero position.

[0045] See also Figure 6 When it is automatically opened (unlocked), the driving motor 53 rotates in the opposite direction, and the driving motor 53 drives the driving cam 52 to rotate counterclockwise through the reduction wheel group. The driving cam 52 drives the self-priming arm 4 to rotate counterclockwise through the stop cam 41, and the self-priming arm 4 drives the stopping claw 3 to rotate clockwise, so that the machine cover lock is unlocked; when unlocking, two unlockings are required. The two unlockings are existing technologies and will not be repeated in this embodiment.

[0046] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0047] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A self-priming and self-opening hood lock, comprising a base plate (1), and a clamping plate (2) and a stop claw (3) rotatably mounted on the base plate (1) and used in conjunction with each other, characterized in that: An electric drive assembly is mounted on the base plate (1), the electric drive assembly comprising a self-priming arm (4) hinged on the base plate (1), a base body (51) fixedly connected to the base plate (1), and a driving cam (52) hinged on the base body (51); the self-priming arm (4) is mounted between the clamping plate (2) and the stop claw (3); the driving cam (52) is drivingly connected to the self-priming arm (4); when the hood lock is in a semi-locked state, the driving cam (52) rotates, the self-priming arm (4) rotates and pushes the clamping plate (2), so that the hood lock reaches a fully locked state; when unlocking, the driving cam (52) rotates in the opposite direction, the self-priming arm (4) rotates in the opposite direction and pushes the stop claw (3), so that the hood lock is unlocked.

2. The self-priming and self-opening hood lock according to claim 1, characterized in that: A pushing portion (401) is provided at one end of the self-priming arm (4), and a stopping cam (41) is installed at the other end thereof; the pushing portion (401) is disposed between the clamping plate (2) and the stopping claw (3), and the stopping cam (41) abuts against the driving cam (52); a stopping column (201) corresponding to the pushing portion (401) is provided on the clamping plate (2), and a stopping block (301) corresponding to the pushing portion (401) is provided on the stopping claw (3).

3. The self-priming and self-opening hood lock according to claim 1, characterized in that: The electric drive assembly further comprises a drive motor (53) and a reduction gear set installed in the seat body (51); the drive motor (53) is drivingly connected to the drive cam (52) via the reduction gear set.

4. The self-priming and self-opening hood lock according to claim 3, characterized in that: The reduction gear set comprises a primary gear (54) and a secondary gear (55) rotatably mounted in the seat body (51); the primary gear (54) and the secondary gear (55) are meshed with each other; a worm (56) meshed with the primary gear (54) is mounted on the drive motor (53); and the secondary gear (55) is connected to the drive cam (52) via a drive shaft (57).

5. The self-priming and self-opening cover lock according to claim 2, characterized in that: The self-priming arm (4) comprises a self-priming rod (42) and a transmission rod (43) hinged on the base plate (1); the pushing portion (401) is arranged at one end of the self-priming rod (42); and the stop cam (41) is installed at the end of the transmission rod (43); the self-priming rod (42) can be drivingly connected to the transmission rod (43) via a clutch arm (44).

6. The self-priming and self-opening hood lock according to claim 5, characterized in that: A manual opening arm (6) is hinged on the base plate (1), and the manual opening arm (6) is used to manually unlock the hood lock after the electric drive assembly fails. One end of the manual opening arm (6) is provided with a driving portion (601) corresponding to the block (301); one end of the clutch arm (44) is hinged on the manual opening arm (6), and the other end is provided with a latch (441); the transmission rod (43) is provided with a waist-shaped groove (431) adapted to the latch (441); and the end of the self-priming rod (42) away from the pushing portion (401) is provided with a latch groove (421) that can be engaged with the latch pin (441).

7. The self-priming and self-opening hood lock according to claim 6, characterized in that: The self-priming rod (42) and the transmission rod (43) are hinged on the base plate (1) via a self-priming arm rivet shaft (45); a self-priming arm torsion spring (46) is sleeved on the self-priming arm rivet shaft (45); one end of the self-priming arm torsion spring (46) abuts on the base plate (1), and the other end abuts on the self-priming rod (42); a support (7) is fixed between the base plate (1) and the base body (51); an opening arm torsion spring (61) is sleeved on the support (7); one end of the opening arm torsion spring (61) abuts on the manual opening arm (6), and the other end abuts on the support (7).

8. The self-priming and self-opening hood lock according to claim 1, characterized in that: A support (7) is fixed between the base plate (1) and the base body (51); the support (7) is provided with a card switch (9) and a stop claw switch (10) at the positions of the card plate (2) and the stop claw (3), respectively; a first pressing block (202) corresponding to the card switch (9) is provided on the card plate (2); and a second pressing block (302) corresponding to the stop claw switch (10) is provided on the stop claw (3).

9. The self-priming and self-opening hood lock according to claim 4, characterized in that: A secondary gear switch (58) is installed in the seat body (51) at a position corresponding to the secondary gear (55), an annular pressing block (551) corresponding to the secondary gear switch (58) is arranged on the secondary gear (55), and a groove (552) is arranged on the outer circumferential wall of the annular pressing block (551).

10. The self-priming and self-opening hood lock according to claim 1, characterized in that: A lifter (11) is hinged on the base plate (1), and a spring (12) is installed between the lifter (11) and the base plate (1).

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