Front machine cover lock capable of saving labor during closing

Abstract

The front machine cover lock comprises a shell, a clamping plate and a jacking device, the clamping plate and the jacking device are hinged in the shell, a rotatable jacking device conversion arm is installed at the end, away from the clamping plate, of the jacking device, a guide column is arranged at one end of the jacking device conversion arm, and the guide column is connected with the jacking device conversion arm. The shell is provided with a guide groove matched with the guide column, and the guide column is arranged in the guide groove. A hooking part is arranged at the other end of the jacking device switching arm, and a tension spring is mounted between the hooking part and the shell; the guide column is sleeved with a bearing, a guide wall is arranged in the guide groove in a protruding mode, and the bearing is in rolling contact with the guide wall. According to the front machine cover lock capable of saving labor in closing, the defect that a machine cover of an existing front machine cover lock is difficult to close is overcome.

Description

Technical Field

[0001] The utility model relates to the field of front hood locks, in particular to a front hood lock that saves effort in closing. Background Art

[0002] With the development of economy, automobile has become an indispensable means of transportation in daily life. In the overall structure of automobile, automobile front hood lock is an important device to ensure driving safety and protect vehicle components.

[0003] For example, patent number CN206319741U discloses a novel automobile hood lock, which includes a lower cover plate, a tension spring, and a lever pivotally connected to the lower cover plate. The two ends of the tension spring are respectively mounted on one end of the lever and the lower cover plate. The lever is configured so that when the hood lock is in the fully locked state, the lever is pressed to the lowest position, causing the tension spring to be in the most tensioned state. In the above structure, the lever and tension spring are provided to facilitate lifting the hood when unlocking. When the hood is pressed down to close, the tension spring needs to be stretched to overcome the spring force. Because the tension spring is directly connected to the lever, when the hood is closed, the tension spring needs to be stretched to a considerable length. The longer the tension spring is stretched, the greater the force required, resulting in a greater closing force required to close the hood, making closing the hood more difficult. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide a front hood lock that saves effort to close, so as to overcome the defect that the existing front hood lock requires more effort to close the hood.

[0006] (2) Technical solution

[0007] In order to solve the technical problem, the utility model provides a front hood lock that saves effort to close, including a shell and a card plate and a lifter hinged in the shell, a rotatable lifter conversion arm is installed at one end of the lifter away from the card plate, a guide column is provided at one end of the lifter conversion arm, a guide groove adapted to the guide column is provided on the shell, and the guide column is placed in the guide groove; a hook portion is provided at the other end of the lifter conversion arm, and a tension spring is installed between the hook portion and the shell.

[0008] In some embodiments, a bearing is mounted on the guide column, a guide wall is protruding from the guide groove, and the bearing is in rolling contact with the guide wall.

[0009] In some embodiments, the hook portion is provided with a first hook hole, which is U-shaped. A second hook hole is provided at a side end of the housing, one end of the tension spring is hooked on the second hook hole, and the other end thereof is hooked on the first hook hole.

[0010] In some embodiments, the shell includes a base and a cover plate covering the base, and the guide groove is provided on the cover plate.

[0011] In some embodiments, the card plate is hinged to the base via a card plate rivet shaft, and the lifter is coaxially arranged with the card plate; a card plate torsion spring is mounted on the card plate rivet shaft, and the card plate torsion spring is used to reset the card plate.

[0012] In some embodiments, a stopping claw used in conjunction with the clamping plate is installed on the base, and the stopping claw is hinged to the base through a stopping claw rivet shaft; a stopping claw torsion spring is mounted on the stopping claw rivet shaft, and the stopping claw torsion spring is used to reset the stopping claw.

[0013] In some embodiments, a pull wire connection hole is provided on the stopping claw, and the pull wire connection hole is used to connect to an external pull wire.

[0014] In some embodiments, the card plate is provided with a first lock groove and a second lock groove that penetrate each other; the stopping claw is provided with a clamping portion, and the card plate is provided with a first locking portion and a second locking portion that can be engaged with the clamping portion.

[0015] In some embodiments, a push switch is installed in the housing on one side of the card plate, and the card plate can trigger the push switch.

[0016] (3) Beneficial effects

[0017] The utility model provides a front hood lock which saves effort in closing. The utility model adds a lifter conversion arm, which is hinged at the end of the lifter and connected to the tension spring. The lifter conversion arm is connected to the tension spring in a manner that replaces the conventional lifter directly connected to the tension spring. The stretched length of the tension spring when the hood is closed can be shortened. When the stretched length of the tension spring is shortened, the spring force is also reduced, thereby reducing the closing force required for the hood. The hood is closed with less effort and is more convenient to operate, thus overcoming the defect that the existing front hood lock requires more effort to close the hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. 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 any creative work.

[0019] Figure 1 This is a three-dimensional diagram of a front hood lock that saves effort in closing according to the present invention;

[0020] Figure 2 This is an exploded view of a front hood lock that saves effort in closing according to the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of a front hood lock that saves effort in closing according to the present invention;

[0022] Figure 4 This is a three-dimensional diagram of a front hood lock cover plate that saves effort to close according to the utility model;

[0023] Figure 5 This is a three-dimensional diagram of the connection between a front hood lock lifter and a lifter conversion arm for effortless closing according to the present invention;

[0024] Figure 6 This is a three-dimensional diagram of the connection between the front hood lock lifter and the lifter conversion arm for effortless closing according to the present invention from another perspective;

[0025] Figure 7 This is a three-dimensional diagram of the connection between the locking plate and the locking claw of the front hood for effortless closing according to the present invention;

[0026] The names of the components corresponding to the various reference numerals in the figure are: 1. Shell; 11. Base; 12. Cover; 101. Guide groove; 102. Guide wall; 103. Second hooking hole; 2. Card; 21. Card rivet shaft; 22. Card torsion spring; 201. First locking groove; 202. Second locking groove; 203. First locking portion; 204. Second locking portion; 3. Lifter; 4. Lifter conversion arm; 41. Bearing; 401. Guide column; 402. Hooking portion; 403. First hooking hole; 5. Tension spring; 6. Stop claw; 61. Stop claw rivet shaft; 62. Stop claw torsion spring; 601. Pull wire connecting hole; 602. Engaging portion; 7. Push switch. DETAILED DESCRIPTION

[0027] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] The following describes the embodiments 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 embodiments, 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 features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0029] 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 this 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 an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0030] 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 illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0031] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0032] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0033] See Figures 1 to 7 The present invention provides a front hood lock that saves effort when closing. The lock comprises a housing 1, a latch plate 2, and a lifter 3 hingedly connected to the housing 1. The lifter 3 corresponds to the latch plate 2 and is used to push an external lock hook upward when the front hood lock is opened, thereby raising the hood. When the hood is pressed down to close, the lock hook presses down on the lifter 3, causing it to rotate.

[0034] See Figure 1 and Figure 2 A rotatable lifter conversion arm 4 is mounted on the end of the lifter 3 away from the card plate 2. A guide post 401 is provided at one end of the lifter conversion arm 4. The guide post 401 is perpendicular to and integrally arranged with the lifter conversion arm 4. A guide groove 101 is provided on the housing 1 to match the guide post 401, and the guide post 401 is placed in the guide groove 101. A hook portion 402 is provided at the other end of the lifter conversion arm 4, and a tension spring 5 is installed between the hook portion 402 and the housing 1. This structure, with the addition of the lifter conversion arm 4 and the lifter conversion arm 4 connected to the tension spring 5, helps shorten the stretched length of the tension spring 5, reduces the closing force required for the cover, and makes closing the cover more labor-saving.

[0035] In some embodiments, as Figure 1 、 Figure 4 and Figure 5 As shown, a bearing 41 is mounted on the guide post 401, and a guide wall 102 protrudes from the guide groove 101. The bearing 41 and the guide wall 102 are in rolling contact. The addition of the bearing 41 and the guide wall 102 in rolling contact not only guides the lifter conversion arm 4 but also reduces friction, making the lifter conversion arm 4 move more smoothly and helping to reduce the closing force.

[0036] In some embodiments, as Figure 2 、 Figure 5 and Figure 6 As shown, the hook portion 402 is provided with a first hook hole 403, which is U-shaped. The U-shaped first hook hole 403 facilitates hooking of the tension spring 5 with the lifter conversion arm 4. A second hook hole 103 is provided on the side end of the housing 1. One end of the tension spring 5 is hooked into the second hook hole 103, and the other end of the tension spring 5 is hooked into the first hook hole 403.

[0037] In some embodiments, as Figure 2 As shown, the housing 1 includes a base 11 and a cover plate 12 covering the base 11 , and the guide groove 101 is provided on the cover plate 12 .

[0038] In some embodiments, as Figure 2 and Figure 3 As shown, the clamping plate 2 is hinged to the base 11 via a clamping plate rivet shaft 21, and the lifter 3 is coaxially arranged with the clamping plate 2. A clamping plate torsion spring 22 is mounted on the clamping plate rivet shaft 21 to reset the clamping plate 2. A stopper 6 for use with the clamping plate 2 is mounted on the base 11. The stopper 6 is hinged to the base 11 via a stopper rivet shaft 61. A stopper torsion spring 62 is mounted on the stopper rivet shaft 61 to reset the stopper 6.

[0039] In some embodiments, as Figure 7 As shown, a wire connection hole 601 is provided on the locking claw 6 , and the wire connection hole 601 is used to connect with an external wire to facilitate pulling the locking claw 6 to rotate it, thereby unlocking the card plate 2 .

[0040] In some embodiments, as Figure 7 As shown, the card plate 2 is provided with a first locking groove 201 and a second locking groove 202 that intersect with each other; the locking claw 6 is provided with a clamping portion 602, and the card plate 2 is provided with a first locking portion 203 and a second locking portion 204 that can be engaged with the clamping portion 602. When the clamping portion 602 is engaged with the first locking portion 203, the lock hook is placed in the first locking groove 201 in a semi-locked state; when the clamping portion 602 is engaged with the second locking portion 204, the lock hook is placed in the second locking groove 202 in a fully locked state.

[0041] In some embodiments, as Figure 7As shown, a push switch 7 is installed on one side of the card plate 2 in the housing 1. The card plate 2 can trigger the push switch 7 during rotation, so that the state of the front cover lock can be obtained.

[0042] The same or similar parts between the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0043] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A front hood lock that saves effort when closing, characterized by: The invention comprises a shell (1), a card plate (2) and a lifter (3) hinged in the shell (1); a rotatable lifter conversion arm (4) is installed at one end of the lifter (3) away from the card plate (2); a guide column (401) is provided at one end of the lifter conversion arm (4); a guide groove (101) adapted to the guide column (401) is provided on the shell (1); the guide column (401) is placed in the guide groove (101); a hook portion (402) is provided at the other end of the lifter conversion arm (4); a tension spring (5) is installed between the hook portion (402) and the shell (1).

2. The front hood lock with low closing effort according to claim 1, characterized in that: A bearing (41) is sleeved on the guide column (401), a guide wall (102) is protruding from the guide groove (101), and the bearing (41) is in rolling contact with the guide wall (102).

3. The front hood lock with low closing effort according to claim 1, characterized in that: The hook portion (402) is provided with a first hook hole (403), and the first hook hole (403) is U-shaped.

4. The front hood lock with low closing effort according to claim 3, characterized in that: A second hooking hole (103) is provided at the side end of the housing (1), one end of the tension spring (5) is hooked on the second hooking hole (103), and the other end thereof is hooked on the first hooking hole (403).

5. The front hood lock with low closing effort according to claim 1, characterized in that: The housing (1) comprises a base (11) and a cover plate (12) covering the base (11), and the guide groove (101) is provided on the cover plate (12).

6. The front hood lock with low closing effort according to claim 5, characterized in that: The card plate (2) is hinged to the base (11) via a card plate rivet shaft (21), and the lifter (3) is coaxially arranged with the card plate (2); a card plate torsion spring (22) is sleeved on the card plate rivet shaft (21), and the card plate torsion spring (22) is used to reset the card plate (2).

7. The front hood lock with low closing effort according to claim 5, characterized in that: A stop claw (6) for use with the clamping plate (2) is mounted on the base (11); the stop claw (6) is hinged to the base (11) via a stop claw rivet shaft (61); a stop claw torsion spring (62) is sleeved on the stop claw rivet shaft (61); the stop claw torsion spring (62) is used to reset the stop claw (6).

8. The front hood lock with low closing effort according to claim 7, characterized in that: The locking claw (6) is provided with a pull wire connection hole (601), and the pull wire connection hole (601) is used for connecting with an external pull wire.

9. The front hood lock with low closing effort according to claim 7, characterized in that: The clamping plate (2) is provided with a first locking groove (201) and a second locking groove (202) that are interpenetrating with each other; the stopping claw (6) is provided with a clamping portion (602); and the clamping plate (2) is provided with a first locking portion (203) and a second locking portion (204) that can be clamped with the clamping portion (602).

10. The front hood lock with low closing effort according to claim 1, characterized in that: A push switch (7) is installed in the housing (1) on one side of the card plate (2), and the card plate (2) can trigger the push switch (7).

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