Hood locks and vehicles
By employing a toothed drive component and a stop plate meshing structure and a bidirectional cable interface in the hood lock, the compatibility issue between left-hand drive and right-hand drive vehicles was resolved, enabling bidirectional unlocking of the hood lock, reducing development costs and improving maintenance convenience.
Patent Information
- Application Number
- CN202510041787.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2045-01-10
AI Technical Summary
Left-hand drive and right-hand drive vehicles cannot use the same hood lock, and traditional hood locks lack a backup opening mechanism, which increases the difficulty of parts standardization and the cost of after-sales maintenance.
Design a hood lock that uses a meshing structure of a toothed drive component and a stop plate, and sets up a bidirectional cable interface to achieve compatibility with left-hand drive and right-hand drive vehicles. It also reserves a spare opening cable. By setting the toothed drive component and the driven wheel coaxially, it simplifies the adaptation and provides a backup opening mechanism.
It improves the standardization of parts for the hood lock, reduces development costs, enhances maintenance convenience, and reduces the increase in after-sales maintenance costs caused by the inability to open the hood.
Smart Images

Figure CN119801336B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle lock technology, specifically to a hood lock and a vehicle. Background Technology
[0002] Depending on the traffic regulations of different countries, vehicles are also divided into left-hand drive and right-hand drive vehicles. When designing engine hood locks, differentiated designs are needed for markets with different driving habits. Left-hand and right-hand drive models cannot use the same hood lock, which undoubtedly increases the difficulty of parts standardization.
[0003] Meanwhile, in the after-sales maintenance field, cases of malfunctioning hood lock cables due to vehicle collisions or natural aging occur frequently. Therefore, having a backup unlocking mechanism is particularly important; however, the hood lock technology currently lacks such a mechanism. Summary of the Invention
[0004] In view of this, the present invention provides a hood lock and a vehicle to solve the problem that left-hand drive and right-hand drive vehicles cannot use the same hood lock and that traditional hood locks lack a backup opening mechanism.
[0005] In a first aspect, the present invention provides a hood lock, comprising:
[0006] The lock housing is equipped with a first pin and a second pin;
[0007] A locking hook, adapted to rotate about a first pin to switch between a locked state and an unlocked state, the locking hook having a locking part;
[0008] A stop plate is adapted to rotate about a second pin to switch between a first state and a second state. The stop plate has a limiting portion; the limiting portion is adapted to press against the locking portion in the first state to maintain the lock hook in the locked state; the limiting portion is also adapted to disengage from the locking portion in the second state to release the restriction on the lock hook.
[0009] A toothed drive member is formed with a driving tooth, and a stop plate is directly or indirectly connected with a driven tooth. The driving tooth and the driven tooth mesh, and the toothed drive member moves to drive the stop plate to switch between a first state and a second state.
[0010] The toothed drive and / or stop plate are provided with a first cable interface, and the toothed drive is provided with a second cable interface, at least one of the first cable interface and the second cable interface being adapted to be connected to a cable.
[0011] Beneficial Effects: The hood lock provided in the embodiments of the present invention, by setting a toothed drive member, wherein the active tooth of the toothed drive member meshes with the driven tooth, thereby causing the toothed drive member to move and drive the stop plate to switch between a first state and a second state; and by providing a first cable interface in the toothed drive member and / or the stop plate, and a second cable interface in the toothed drive member, wherein at least one of the first cable interface and the second cable interface is adapted to be connected to a cable, thereby facilitating bidirectional unlocking of the hood lock, achieving simultaneous consideration of cable arrangement for both left-hand drive and right-hand drive vehicles, improving the degree of parts commonality, and reducing development costs. The cable may include a first cable and a second cable, the first cable being connected to a first cable interface, and the second cable being connected to a second cable interface; and according to the actual installation requirements of left-hand drive and right-hand drive vehicles, one of the first cable and the second cable can be used as the main cable, and the other can be used as a backup opening cable, so as to provide a backup opening possibility when the main cable fails, improving maintenance convenience and reducing the occurrence of increased after-sales maintenance costs due to parts damage caused by the inability to open the hood.
[0012] In one optional embodiment, the hood lock further includes: a driven wheel, which is fixedly connected to the stop plate, and driven teeth are formed on the driven wheel;
[0013] The toothed drive element is adapted to rotate about the shaft to drive the driven wheel to rotate synchronously.
[0014] Beneficial effects: Since the driving teeth of the toothed drive component are matched with the driven teeth of the driven wheel, the toothed drive component always maintains meshing with the driven teeth during the rotation of the shaft, thereby driving the driven wheel to rotate synchronously. Since the driven wheel is fixedly connected to the stop plate, the rotation of the toothed drive component can drive the stop plate to rotate, thereby allowing the stop plate to switch between the first state and the second state.
[0015] In one optional embodiment, the toothed drive member is coaxially arranged with the first pin, and the locking hook rotates independently of the toothed drive member;
[0016] The driven wheel and the second pin are coaxially arranged, and the stop plate rotates synchronously with the driven wheel.
[0017] Beneficial effects: By setting the toothed drive component coaxially with the first pin and the driven wheel coaxially with the second pin, it is convenient for the toothed drive component and the driven wheel to mesh, reducing the difficulty of matching the toothed drive component and the driven wheel.
[0018] In one alternative implementation, the cable includes a first cable and a second cable, the first cable being connected to a first cable interface and the second cable being connected to a second cable interface;
[0019] When the first cable interface is set on the toothed drive component, the tension direction of the first cable is opposite to that of the second cable, and neither of them coincides with the rotation axis of the toothed drive component.
[0020] Beneficial effects: The first cable interface is located on the stop plate, and the first cable is connected to the first cable interface. Since the first cable and the second cable move in opposite directions, when the first cable is pulled, the stop plate can be driven to rotate counterclockwise around the second pin. As the stop plate rotates, the limiting part can disengage from the locking part, thereby releasing the restriction on the lock hook, so that the lock hook can switch from the locked state to the unlocked state.
[0021] In one alternative embodiment, the hood lock further includes a first torsion spring connected to the lock hook and adapted to provide a restoring force to the lock hook to maintain it in the unlocked state.
[0022] Beneficial effects: Since the first torsion spring is suitable for providing a restoring force to keep the lock hook in the unlocked state, when the lock hook is in the locked state, the first torsion spring is always in the compressed state. When the limiting part of the stop plate is disengaged from the locking part of the lock hook, the restriction on the lock hook can be released. Then, under the action of the restoring force of the first torsion spring, the lock hook is rotated to the unlocked state, which facilitates the release of the lock rod.
[0023] In one alternative embodiment, the hood lock further includes a second torsion spring connected to the stop plate and adapted to provide a restoring force to the stop plate to maintain it in a first state.
[0024] Beneficial effect: Since the second torsion spring is adapted to provide a restoring force to maintain the stop plate in the first state, when the first or second cable is pulled, the elastic force of the second torsion spring needs to be overcome. When the tension of the first or second cable disappears, the stop plate will return to the position of the first state under the action of the restoring force of the second torsion spring.
[0025] In one alternative embodiment, the lock housing has a locking bar groove adapted to guide the movement of the locking bar;
[0026] Along the axial direction of the first pin, the toothed drive part partially penetrates to form a clearance portion, which is adapted to avoid the movement of the locking rod.
[0027] Beneficial effect: The toothed drive part partially penetrates to form a clearance part, which is suitable for avoiding the movement of the locking bar, so that the locking bar will not interfere with the toothed drive part during the movement.
[0028] In one alternative embodiment, the lock hook has a lock groove;
[0029] When the locking hook is in the locked state, the locking groove, the locking rod groove and the relief part overlap at least partially along the axial direction of the first pin to form a locking cavity, and the locking rod is located in the locking cavity.
[0030] Secondly, the present invention also provides a vehicle, comprising: a vehicle body, and a hood lock as described above disposed on the vehicle body.
[0031] In one alternative implementation, the vehicle includes a left-hand drive vehicle or a right-hand drive vehicle.
[0032] Beneficial Effects: The vehicle provided by the embodiments of the present invention, by setting a toothed drive member, wherein the driving tooth and driven tooth of the toothed drive member mesh, thereby causing the toothed drive member to move and drive the stop plate to switch between a first state and a second state; and by setting a first cable and a second cable, wherein one of the first cable and the second cable is connected to the toothed drive member, and the other is connected to the toothed drive member and / or the stop plate, thereby realizing bidirectional unlocking of the hood lock, achieving the goal of simultaneously accommodating the cable arrangement of left-hand drive and right-hand drive vehicles, improving the degree of parts commonality, and reducing development costs. Furthermore, according to the actual installation requirements of left-hand drive and right-hand drive vehicles, one of the first cable and the second cable can be used as the main cable, and the other can be used as a backup opening cable, so as to provide a backup opening possibility when the main cable fails, thereby improving maintenance convenience and reducing the occurrence of increased after-sales maintenance costs due to parts damage caused by the inability to open the hood. Attached Figure Description
[0033] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0034] Figure 1 This is an exploded view of the lock housing, the first cable, and the second cable of the present invention;
[0035] Figure 2 This is a schematic diagram of the internal structure of the machine cover lock of the present invention after removing one side of the lock shell;
[0036] Figure 3 This is an exploded view of the locking hook, stop plate, and toothed drive component of the present invention;
[0037] Figure 4 This is a front view of the internal structure of the cover lock of the present invention;
[0038] Figure 5 This is a schematic diagram of the hood lock of the present invention in the locked state;
[0039] Figure 6 This is a schematic diagram of the unlocking process of the cover lock of the present invention;
[0040] Figure 7 This is a schematic diagram of the cover lock of the present invention in the unlocked state.
[0041] Explanation of reference numerals in the attached figures:
[0042] 1. Lock housing; 11. First lock sleeve connection position; 12. Second lock sleeve connection position; 13. Lock housing fixing hole; 14. Lock rod groove;
[0043] 2. Locking hook; 21. Locking part; 22. First pin; 23. Locking groove;
[0044] 3. Stop plate; 31. Limiting part; 32. Second pin; 33. First cable interface;
[0045] 4. Toothed drive component; 41. Drive tooth; 43. Clearance part; 44. Second cable interface;
[0046] 5. Cable; 51. First cable; 52. Second cable;
[0047] 6. First torsion spring; 7. Second torsion spring; 8. Locking rod; 9. Driven wheel; 91. Driven tooth. Detailed Implementation
[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0049] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0051] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0052] As my country's automotive industry accelerates its globalization, an increasing number of vehicles are being exported to overseas markets. Vehicles are categorized as left-hand drive or right-hand drive depending on the traffic regulations of different countries. The hood lock typically requires a cable to open, and the cable's handle is usually located on the driver's side, necessitating adjustments based on whether the vehicle is left-hand or right-hand drive. Therefore, the design of hood locks must be differentiated for markets with varying driving habits. Due to the different cable directions, left-hand and right-hand drive models often cannot use the same hood lock, undoubtedly increasing the difficulty of parts standardization and development costs.
[0053] Meanwhile, in the after-sales service field, it is not uncommon for the hood release cable to fail due to vehicle collisions or natural aging, making it impossible to open the hood using the handle. Traditional solutions sometimes require damaging surrounding components to access the lock body, then manually prying it open with a special tool. This method is cumbersome and difficult to use without the necessary tools. Therefore, it is crucial to have a backup opening mechanism, reduce the difficulty of unlocking, and minimize the use of special tools.
[0054] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.
[0055] According to an embodiment of the present invention, in one aspect, a hood lock is provided, comprising:
[0056] Lock housing 1 is provided with a first pin 22 and a second pin 32;
[0057] The locking hook 2 is adapted to rotate about the first pin 22 to switch between a locked state and an unlocked state, and the locking hook 2 has a locking part 21;
[0058] The stop plate 3 is adapted to rotate about the second pin 32 to switch between a first state and a second state. The stop plate 3 has a limiting part 31. The limiting part 31 is adapted to press against the locking part 21 in the first state to maintain the locking hook 2 in the locked state. The limiting part 31 is also adapted to disengage from the locking part 21 in the second state to release the restriction on the locking hook 2.
[0059] The toothed drive member 4 has an active tooth 41, and the stop plate 3 is directly or indirectly connected to a driven tooth 91. The active tooth 41 meshes with the driven tooth 91, and the toothed drive member 4 moves to drive the stop plate 3 to switch between the first state and the second state.
[0060] The toothed drive member 4 and / or the stop plate 3 are provided with a first cable interface 33, and the toothed drive member 4 is provided with a second cable interface 44. At least one of the first cable interface 33 and the second cable interface 44 is adapted to be connected to a cable.
[0061] In this embodiment, the locking hook 2 is used to limit the locking rod 8 in the locked state. The locking rod 8 is connected to the vehicle's hood, meaning the hood is locked. In the unlocked state, the locking hook 2 can release the limitation on the locking rod 8, thereby facilitating the opening of the hood.
[0062] The lock case 1 serves as the outer shell of the lock housing, and all structural components are suitable for installation inside the lock case 1.
[0063] By installing the first pin 22 onto the lock housing 1, the lock hook 2 can rotate around the first pin 22, thus enabling the lock hook 2 to move relative to the lock housing 1. Similarly, by installing the second pin 32 onto the lock housing 1, the stop plate 3 can rotate around the second pin 32, thus enabling the stop plate 3 to move relative to the lock housing 1.
[0064] The limiting part 31 of the stop plate 3 and the locking part 21 of the hook 2 are adapted to abut against each other. When the stop plate 3 is in the first state, the limiting part 31 abuts against the locking part 21 to keep the hook 2 in the locked state. At this time, when the hook 2 is subjected to external force, it cannot disengage from the locking part 21, thus ensuring that the hook 2 is in the locked state. Only when the stop plate 3 rotates, causing the stop plate 3 to switch from the first state to the second state, can the limiting part 31 disengage from the locking part 21. Only then will the limiting part 31 release its restriction on the locking part 21, thereby releasing the restriction on the hook 2, so that the hook 2 can switch from the locked state to the unlocked state.
[0065] The rotation of the stop plate 3 around the second pin 32 can be achieved by the traction of the cable. In this embodiment, the cable specifically includes a first cable 51 and a second cable 52, wherein the first cable 51 is connected to the first cable interface 33, and the second cable 52 is connected to the second cable interface 44. Since the cable directions of the left-hand drive vehicle and the right-hand drive vehicle are different, in order to facilitate the commonality between the left-hand drive vehicle and the right-hand drive vehicle, this embodiment provides a toothed drive member 4, so that one of the first cable 51 and the second cable 52 is connected to the toothed drive member 4, and the other is connected to the toothed drive member 4 and / or the stop plate 3. This facilitates pulling from two directions and facilitates the commonality between the left-hand drive vehicle and the right-hand drive vehicle.
[0066] Specifically, in this embodiment, the first cable 51 is connected to the toothed drive member 4, and the second cable 52 is connected to the stop plate 3.
[0067] According to the actual installation requirements of left-hand drive and right-hand drive vehicles, one of the first cable 51 and the second cable 52 can be used as the main cable and extend into the cab to be connected to the opening handle of the hood. The other cable can be used as a backup opening cable, and the opening position of the backup opening cable is arranged in a concealed and easily accessible location so as to provide a backup opening possibility when the main cable fails, thereby reducing the occurrence of increased after-sales maintenance costs due to damage to parts caused by the inability to open the hood.
[0068] The hood lock provided in the embodiments of the present invention, by setting a toothed drive member 4, wherein the active tooth 41 of the toothed drive member 4 meshes with the driven tooth 91, thereby causing the toothed drive member 4 to move to drive the stop plate 3 to switch between a first state and a second state; and by providing a first cable interface 33 on the toothed drive member 4 and / or the stop plate 3, and a second cable interface 44 on the toothed drive member 4, at least one of the first cable interface 33 and the second cable interface 44 is adapted to be connected to a cable, thereby facilitating bidirectional unlocking of the hood lock, achieving simultaneous consideration of cable arrangement for left-hand drive and right-hand drive vehicles, improving the degree of parts commonality, and reducing development costs. The cable may include a first cable 51 and a second cable 52. The first cable 51 is connected to the first cable interface 33, and the second cable 52 is connected to the second cable interface 44. Depending on the actual installation requirements of the left-hand drive and right-hand drive vehicles, one of the first cable 51 and the second cable 52 can be used as the main cable, and the other can be used as a backup opening cable. This provides a backup opening possibility when the main cable fails, improves maintenance convenience, and reduces the occurrence of increased after-sales maintenance costs due to damage to parts caused by the inability to open the engine cover.
[0069] Furthermore, the hood lock in this embodiment is driven by a connecting rod with a pin, and the two-way unlocking principle is different. The pulling action of the first cable 51 and the second cable 52 does not require a reverse drive component as an intermediate force transmission structure. Since there is no need to set a reverse drive component, the wear caused by the relative movement between the reverse drive components is reduced, the structural design is relatively simple, and the number of parts is less.
[0070] like Figure 1 As shown, the lock housing 1 has a lock housing fixing hole 13. By inserting a bolt into the lock housing fixing hole 13, the lock housing 1 can be fixed to the vehicle body. The lock housing 1 is provided with a first lock sleeve connection position 11 and a second lock sleeve connection position 12. The first pull cable 51 and the second pull cable 52 are respectively installed in the first lock sleeve connection position 11 and the second lock sleeve connection position 12, thereby realizing the locking of the first pull cable 51 and the second pull cable 52 and preventing them from falling off.
[0071] The first cable 51 and the second cable 52 can be collectively referred to as cable 5.
[0072] In some embodiments, combined with Figure 3 As shown, the hood lock also includes: a driven wheel 9, which is fixedly connected to the stop plate 3, and a driven tooth 91 is formed on the driven wheel 9;
[0073] The toothed drive member 4 is adapted to rotate around the pivot to drive the driven wheel 9 to rotate synchronously.
[0074] Since the driving tooth 41 of the toothed drive member 4 is adapted to the driven tooth 91 of the driven wheel 9, the toothed drive member 4 always maintains engagement with the driven tooth 91 during the rotation of the toothed drive member 4 around the rotating shaft, thereby driving the driven wheel 9 to rotate synchronously. Since the driven wheel 9 is fixedly connected to the stop plate 3, the rotation of the toothed drive member 4 can drive the stop plate 3 to rotate, thereby allowing the stop plate 3 to switch between the first state and the second state.
[0075] As one implementation, the toothed drive member 4 can be a gear structure. As a variation, the toothed drive member 4 can also be a rack structure, in which case the toothed drive member 4 can move along a straight line or along an arc. Regardless of the toothed structure of the toothed drive member 4, as long as the toothed drive member 4 can always maintain meshing with the driven tooth 91, thereby driving the driven wheel 9 to rotate synchronously, the stop plate 3 can switch between the first state and the second state.
[0076] In some embodiments, combined with Figure 4 As shown, the toothed drive member 4 is coaxially arranged with the first pin 22, and the locking hook 2 rotates independently of the toothed drive member 4;
[0077] Driven wheel 9 is coaxially arranged with second pin 32, and stop plate 3 rotates synchronously with driven wheel 9.
[0078] By setting the toothed drive member 4 coaxially with the first pin 22 and the driven wheel 9 coaxially with the second pin 32, it is possible to facilitate the meshing of the toothed drive member 4 and the driven wheel 9, thereby reducing the difficulty of adapting the toothed drive member 4 and the driven wheel 9.
[0079] Additionally, the stop plate 3 rotates synchronously with the driven wheel 9, which ensures that the driven wheel 9 drives the stop plate 3.
[0080] In some embodiments, combined with Figure 3 As shown, the cable includes a first cable 51 and a second cable 52. The first cable 51 is connected to the first cable interface 33; the second cable 52 is connected to the second cable interface 44.
[0081] When the first cable interface 33 is provided on the toothed drive member 4, the tension direction of the first cable 51 is opposite to that of the second cable 52, and neither of them coincides with the rotation axis of the toothed drive member 4.
[0082] In this embodiment, the first cable interface 33 is disposed on the stop plate 3, and the first cable 51 is connected to the first cable interface 33. Since the first cable 51 and the second cable 52 move in opposite directions, when the first cable 51 is pulled, [the following occurs]... Figures 5 to 7 The change process can drive the stop plate 3 to rotate counterclockwise around the second pin 32. As the stop plate 3 rotates, the limiting part 31 can disengage from the locking part 21 to release the restriction on the lock hook 2, so that the lock hook 2 can switch from the locked state to the unlocked state.
[0083] Pulling the first cable 51 can directly drive the stop plate 3 to rotate and unlock; pulling the second cable 52, through the mechanical transmission of the toothed drive component 4, can drive the stop plate 3 to rotate and unlock.
[0084] Although the first cable 51 and the second cable 52 move in opposite directions, they achieve the same unlocking function. Therefore, depending on the actual installation requirements of left-hand drive and right-hand drive vehicles, one of the first cable 51 and the second cable 52 can serve as the main cable, while the other can serve as a backup opening cable. This provides a backup opening option in case the main cable fails, improving maintenance convenience and reducing the risk of increased after-sales maintenance costs due to parts damage caused by the inability to open the hood. Furthermore, both the first cable 51 and the second cable 52 can be directly pulled to unlock, and neither requires a reverse drive component as an intermediate force transmission structure.
[0085] In some embodiments, combined with Figure 2 As shown, the hood lock also includes a first torsion spring 6, which is connected to the lock hook 2 and is adapted to provide a restoring force to maintain the lock hook 2 in the unlocked state.
[0086] And / or, the hood lock further includes: a second torsion spring 7, which is connected to the stop plate 3 and is adapted to provide a restoring force to the stop plate 3 to maintain it in the first state.
[0087] Since the first torsion spring 6 is adapted to provide a restoring force to keep the hook 2 in the unlocked state, when the hook 2 is in the locked state, the first torsion spring 6 is always in the compressed state. When the limiting part 31 of the stop plate 3 is disengaged from the locking part 21 of the hook 2, the restriction on the hook 2 can be released. Then, under the action of the restoring force of the first torsion spring 6, the hook 2 is rotated to the unlocked state, which facilitates the release of the locking rod 8.
[0088] Since the second torsion spring 7 is adapted to provide a restoring force to maintain the stop plate 3 in the first state, when the first cable 51 or the second cable 52 is pulled, the elastic force of the second torsion spring 7 needs to be overcome. When the tension of the first cable 51 or the second cable 52 disappears, the stop plate 3 will return to the position of the first state under the action of the restoring force of the second torsion spring 7.
[0089] In addition, combined Figure 5 As shown, when the locking hook 2 is in the locked state, under the action of the restoring force of the first torsion spring 6, the locking part 21 of the locking hook 2 will exert force on the limiting part 31 of the stop plate 3. However, due to the pulling effect of the second cable 52 on the stop plate 3, the stop plate 3 cannot rotate clockwise; or, due to the pulling force of the first cable 51, the toothed drive member 4 cannot rotate counterclockwise. Thus, through the meshing of the toothed drive member 4 with the driven tooth 91, the stop plate 3 cannot rotate clockwise; thus, the locking hook 2 cannot be freely disengaged, thereby ensuring the reliability of the locking hook 2 when it is in the locked state.
[0090] In this embodiment, the lock housing 1 is fixedly installed on the vehicle body, and the lock hook 2 is fixedly connected to the housing via a first pin 22. A first torsion spring 6 is sleeved on the first pin 22 and connected to the lock hook 2. Under the action of external force, usually when the hood is closed downwards, the downward pressure of the locking rod 8 on the lock hook 2 can cause the lock hook 2 to rotate around the first pin 22, causing the locking part 21 to press against the limiting part 31 of the stop plate 3. The locking part 21 moves from above the limiting part 31 to below the limiting part 31, thereby achieving locking.
[0091] In some embodiments, combined with Figure 1 , Figure 2 As shown, the lock housing 1 has a lock bar groove 14, which is suitable for guiding the movement of the lock bar 8;
[0092] Along the axial direction of the first pin 22, the toothed drive member 4 partially penetrates to form a relief portion 43, which is adapted to avoid the movement of the locking rod 8.
[0093] The toothed drive member 4 partially penetrates to form a relief portion 43, which is adapted to avoid the movement of the locking rod 8, so that the locking rod 8 will not interfere with the toothed drive member 4 during the movement.
[0094] The locking principle of the locking rod 8 in this embodiment is as follows: A locking part 21 is provided on the locking hook 2, which extends into the locking rod groove 14. When the locking rod 8 moves along the moving path, it can strike the locking part 21, thereby driving the locking hook 2 to rotate. When the locking hook 2 rotates in the locking direction, it squeezes the limiting part 31, thereby driving the stop plate 3 to rotate. When the locking hook 2 is in the locked position, the locking part 21 is stuck by the limiting part 31 of the stop plate 3 to maintain the locked position. At this time, the opening direction of the locking groove 23 is opposite to the opening direction of the locking rod groove 14, and the locking rod 8 is located in the locking cavity and cannot be dislodged by itself.
[0095] The unlocking principle of the locking bar 8 in this embodiment is as follows: the cable 5 drives the stop plate 3 to rotate, which can disengage the limiting part 31 from the locking part 21, thereby releasing the restriction on the locking hook 2, so that the locking hook 2 can switch from the locked state to the unlocked state; at this time, the opening direction of the locking groove 23 and the opening direction of the locking bar groove 14 are both upward, and the locking bar 8 can be disengaged along the locking bar groove 14.
[0096] In some embodiments, combined with Figure 3 As shown, the lock hook 2 has a lock groove 23;
[0097] When the locking hook 2 is in the locked state, along the axial direction of the first pin 22, the locking groove 23, the locking rod groove 14 and the relief part 43 at least partially overlap to form a locking cavity, and the locking rod 8 is located in the locking cavity.
[0098] Combination Figure 2 As shown, along the axial direction of the first pin 22, the locking groove 23, the locking rod groove 14, and the clearance portion 43 at least partially overlap, thereby facilitating the accommodation of the locking rod 8.
[0099] After the main cable is installed, either left-hand drive or right-hand drive vehicles will have one cable connector left unused. This unused connector can be used to install a spare opening cable, providing a backup opening option in case the main cable fails.
[0100] According to an embodiment of the present invention, another aspect provides a vehicle, including: a vehicle body, and a hood lock as described above disposed on the vehicle body.
[0101] In some embodiments, the vehicle includes a left-hand drive vehicle or a right-hand drive vehicle.
[0102] The vehicle provided in the embodiments of the present invention, by setting a toothed drive member 4, with the driving tooth 41 of the toothed drive member 4 meshing with the driven tooth 91, causes the toothed drive member 4 to move and drive the stop plate 3 to switch between a first state and a second state; and by setting a first cable 51 and a second cable 52, with one of the first cable 51 and the second cable 52 connected to the toothed drive member 4 and the other connected to the toothed drive member 4 and / or the stop plate 3, bidirectional unlocking of the hood lock is achieved, simultaneously accommodating the cable arrangement of left-hand drive and right-hand drive vehicles, improving the degree of parts commonality, and reducing development costs. Furthermore, according to the actual installation requirements of left-hand drive and right-hand drive vehicles, one of the first cable 51 and the second cable 52 can be used as the main cable, and the other as a backup opening cable, so as to provide a backup opening possibility when the main cable fails, improving maintenance convenience and reducing the occurrence of increased after-sales maintenance costs due to parts damage caused by the inability to open the hood.
[0103] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.
Claims
1. A hood lock characterized by, The machine cover lock comprises: a lock shell (1) provided with a first pin shaft (22) and a second pin shaft (32); a lock hook (2) adapted to rotate around the first pin shaft (22) to switch between a locking state and an unlocking state, the lock hook (2) having a locking portion (21); a stop plate (3) adapted to rotate around the second pin shaft (32) to switch between a first state and a second state, the stop plate (3) having a limiting portion (31); the limiting portion (31) is adapted to abut against the locking portion (21) in the first state to maintain the lock hook (2) in the locking state; the limiting portion (31) is also adapted to be disengaged from the locking portion (21) in the second state to release the restriction on the lock hook (2); a toothed drive member (4) formed with a driving tooth (41), the stop plate (3) being directly or indirectly connected with a driven tooth (91), the driving tooth (41) being engaged with the driven tooth (91), the toothed drive member (4) being moved to drive the stop plate (3) to switch between the first state and the second state; the toothed drive member (4) and / or the stop plate (3) is provided with a first cable interface (33), the toothed drive member (4) being provided with a second cable interface (44), at least one of the first cable interface (33) and the second cable interface (44) being adapted to be connected with a cable; the machine cover lock further comprises a driven wheel (9), the driven tooth (91) being formed on the driven wheel (9); the toothed drive member (4) is adapted to rotate around a rotation shaft to drive the driven wheel (9) to rotate synchronously; the toothed drive member (4) is coaxially arranged with the first pin shaft (22), and the lock hook (2) rotates independently of the toothed drive member (4); the driven wheel (9) is coaxially arranged with the second pin shaft (32), and the stop plate (3) rotates synchronously with the driven wheel (9).
2. The hood lock of claim 1, wherein The driven wheel (9) is fixedly connected with the stop plate (3).
3. The hood lock of claim 1, wherein The cable comprises a first cable (51) and a second cable (52), the first cable (51) being connected with the first cable interface (33), and the second cable (52) being connected with the second cable interface (44); when the first cable interface (33) is arranged on the toothed drive member (4), the pulling direction of the first cable (51) is opposite to the pulling direction of the second cable (52), and both are not coincided with the rotation axis of the toothed drive member (4).
4. The hood lock of claim 1, wherein The machine cover lock further comprises a first torsional spring (6) connected with the lock hook (2) and adapted to provide a restoring force for the lock hook (2) to maintain the unlocking state.
5. The hood lock of claim 1, wherein The machine cover lock further comprises a second torsional spring (7) connected with the stop plate (3) and adapted to provide a restoring force for the stop plate (3) to maintain the first state.
6. The hood lock according to any one of claims 1 to 5, characterized in that The lock shell (1) is provided with a lock rod slot (14) adapted to guide the movement of a lock rod (8). A clearance portion (43) is formed along the axis direction of the first pin shaft (22) and partially penetrates the toothed driving member (4), and the clearance portion (43) is adapted to avoid the movement of the lock rod (8).
7. The hood lock of claim 6, wherein The lock hook (2) is provided with a lock groove (23). In the locked state, the lock groove (23), the lock rod groove (14) and the clearance portion (43) at least partially overlap to form a locking cavity along the axis direction of the first pin shaft (22), and the lock rod (8) is located in the locking cavity.
8. A vehicle characterized by comprising: The vehicle includes a left-hand drive vehicle or a right-hand drive vehicle.
9. The vehicle of claim 8, wherein, The vehicle includes a left-hand drive vehicle or a right-hand drive vehicle.
Citation Information
Patent Citations
Lock structure used for opening and closing of engine cover, vehicle
CN104612499A
Car engine hood lock
CN202624398U