Locking device and motor vehicle

Abstract

Locking device (1000), comprising: - one bar (100), - a first locking pawl (200), wherein the first locking pawl (200) allows the bolt (100) to be locked in a first locking position, - a second locking pawl (300), wherein the second locking pawl (300) allows the bolt (100) to be locked in a second locking position, and - a control rod (400), wherein - the first pawl (200) can be blocked in the first locking position by the control rod (400) when the first pawl (200) is engaged with the bolt (100), and the second pawl (300) interacts simultaneously or sequentially with the control rod (400) and the first pawl (200) during its movement to allow the first pawl (200) to move in a direction in which it is released from the first locking position of the bolt (100), and - the locking device (1000) further comprises a spring section (500), wherein the spring section (500) applies a spring force to the control rod (400), so that the control rod (400) drives the first pawl (200) in the direction of engagement with the bolt (100) in the first locking position, - wherein the spring section (500) is a spring with a spring arm (501) and the spring exerts an elastic force on the control rod (400) via the spring arm (501), - the locking device (1000) further comprises a limiting block (600), wherein the limiting block (600) limits the control rod (400) in a first limiting position when the bolt (100) is locked in the first locking position by the first pawl (200) under a first driving movement of the control rod (400), and the spring force is applied to the control rod (400) by the resilient section (500) to hold the control rod (400) in the first limiting position when the control rod (400) is limited in the first limiting position by the limiting block (600), wherein the first pawl (200) and the second pawl (300) have different centers of rotation, wherein the bolt (100) comprises a first locking surface (101) formed by a first section of the bolt (100), and a second locking surface (102), which is formed by a second section of the bar (100),wherein the first locking pawl (200) engages with the first locking surface (101) when the bolt (100) is in the first locking position, and the second locking pawl (300) engages with the second locking surface (102) when the bolt (100) is in the second locking position, wherein the first section and the second section are arranged in different planes perpendicular to an axis of rotation of the bolt (100).

Description

Technical field

[0001] The present disclosure relates to the technical field of locking devices, and the present disclosure relates to a locking device for hoods or doors, which is suitable for hoods or doors of motor vehicles or buildings. State of the art

[0002] The locking devices for hoods or doors known in the prior art are generally designed with only a bolt and a locking pawl, the reliability of which is questionable. If the hoods or doors are subjected to a high sealing force, a high unlocking force is required with the existing locking devices, meaning that the user has to exert a high operating force.

[0003] US Patent 2020 / 0208444A1 discloses locking devices for vehicle doors, comprising a bolt, a first pawl for locking the bolt in a first position ("full latch state"), and a second pawl for locking in a second position ("half latch state"). The devices have a control rod (block lever) that can block movement of the first pawl when engaged with the bolt, and springs that preload the individual components. The springs act directly on the pawls to engage the first pawl with the bolt. Finally, limit blocks are provided to restrict movement of the control rod, with the pawls having different pivot points.

[0004] German patent DE 10 2017 124 393 A1 discloses a motor vehicle lock with a pivoting latch and a primary locking pawl that locks the latch in the pre-locking and main locking positions. In the pre-locking position, the operating force required to open the lock is reduced by a self-locking mechanism that prevents the primary locking pawl from being disengaged by friction at the locking engagement point. By appropriately designing the locking surfaces and selecting material pairings such as steel / plastic, operational reliability can be increased and the opening force further reduced. This allows for an optimal compromise between secure holding and low effort required for opening. Disclosure of the invention

[0005] To solve at least one of the aforementioned technical problems, the present disclosure provides a locking device and a motor vehicle. The locking device and the motor vehicle of the present disclosure are achieved through the following technical solution.

[0006] According to one aspect of the present revelation, a locking device is provided, comprising: - a bolt, a first locking pawl, wherein the bolt can be locked in a first locking position by means of the first locking pawl, - a second locking pawl, wherein the second locking pawl allows the bolt to be locked in a second locking position, and - a control rod, whereby - the first pawl can be blocked in the first locking position by the control rod when the first pawl is engaged with the bolt, and the second pawl, during its movement, interacts simultaneously or sequentially with the control rod and the first pawl to allow the first pawl to move in a direction in which it is released from the first locking position of the bolt, and - the locking device further comprises a spring section, wherein the spring section applies a spring force to the control rod, so that the control rod drives the first pawl in the direction of engagement with the bolt in the first locking position, - wherein the spring section is a spring with a spring arm and the spring exerts an elastic force on the control rod via the elastic arm, - the locking device further comprises a limiting block, wherein the limiting block limits the control rod in a first limiting position when the bolt is locked by the first pawl under the first drive movement of the control rod in the first locking position, and wherein the resilient section applies a spring force to the control rod to hold the control rod in the first limiting position when the control rod is limited by the limiting block in the first limiting position, wherein the first pawl and the second pawl have different centers of rotation, wherein the bolt comprises a first locking surface formed by a first section of the bolt, and a second locking surface formed by a second section of the bolt, wherein the first pawl engages with the first locking surface,when the bolt is in the first locking position, and the second locking pawl is engaged with the second locking surface, when the bolt is in the second locking position, wherein the first section and the second section are arranged in different planes perpendicular to an axis of rotation of the bolt.

[0007] In a locking device according to at least one embodiment of the present disclosure, the bolt comprises a first locking surface and a second locking surface, wherein the bolt is locked in the first locking position by the first locking pawl, and the bolt is locked in the second locking position by the second locking pawl.In a locking device according to at least one embodiment of the present disclosure, the first locking pawl comprises a first engagement surface, wherein the first locking pawl engages with the first locking surface at the first engagement surface in order to lock the bolt in the first locking position, and the second locking pawl comprises a second engagement surface, wherein the second locking pawl engages with the second locking surface at the second engagement surface in order to lock the bolt in the second locking position.

[0008] In a locking device according to at least one embodiment of the present disclosure, the first engagement surface is a curved surface, wherein the center of the circle of the first engagement surface does not coincide with the center of rotation of the first pawl, so that a torque is generated by which the first pawl is rotated in the direction of unlocking the bolt when the first engagement surface is subjected to pressure.

[0009] In a locking device according to at least one embodiment of the present disclosure, the circular center of the first engagement surface is located at an outer position of the pivot center of the first locking pawl, wherein the outer position is not in the area of ​​the position between the pivot center of the bolt and the pivot center of the first locking pawl.

[0010] In a locking device according to at least one embodiment of the present disclosure, the first pawl locks the bolt in the first locking position under a first drive movement of the control rod, and the bolt is released from the first locking position by the first pawl under a second drive movement of the control rod.

[0011] In a locking device according to at least one embodiment of the present disclosure, the first pawl further comprises a first limiting surface, wherein the first limiting surface is driven by the first drive movement of the control rod, such that the first engagement surface of the first pawl engages with the first locking surface of the bolt, thereby holding the bolt in the first locking position.

[0012] In a locking device according to at least one embodiment of the present disclosure, the first pawl further comprises a first driven surface, wherein the first driven surface is driven by the second drive movement of the control rod, such that the first engagement surface of the first pawl is released from engagement with the first locking surface of the bolt, thereby releasing the bolt from the first locking position.

[0013] In a locking device according to at least one embodiment of the present disclosure, it further comprises a limiting block, wherein the limiting block limits the control rod in a first limiting position when the bolt is locked in the first locking position by the first pawl under the first drive movement of the control rod, such that the control rod ensures that the first engagement surface of the first pawl is engaged with the first locking surface of the bolt.

[0014] In a locking device according to at least one embodiment of the present disclosure, the control rod is released from the first limiting position when the first locking pawl releases the bolt from the first locking position under the second drive movement of the control rod.

[0015] In a locking device according to at least one embodiment of the present disclosure, a spring force is applied to the control rod by the resilient section in order to hold the control rod in the first limiting position when the control rod is limited in the first limiting position by the limiting block.

[0016] In a locking device according to at least one embodiment of the present disclosure, the second pawl comprises a slotted section, and the control rod comprises a driver section, wherein the driver section is provided within the slotted section, so that the control rod can be moved by the movement of the second pawl.

[0017] In a locking device according to at least one embodiment of the present disclosure, the second locking pawl comprises a second driven surface, wherein the second driven surface is driven by a drive movement of an external drive mechanism.

[0018] In a locking device according to at least one embodiment of the present disclosure, the driver section comprises a column-shaped section and a limiting section, wherein the column-shaped section is arranged inserted in the slot section, and the column-shaped section is limited by the limiting section within the slot section to prevent the driver section from being pushed out of the slot section.

[0019] In a locking device according to at least one embodiment of the present disclosure, the control rod comprises an engagement surface of the control rod and a limiting surface of the control rod, wherein the first limiting surface of the first pawl is driven by the first drive movement of the control rod via the engagement surface of the control rod, and the control rod is limited by the limiting block via the limiting surface of the control rod.

[0020] In a locking device according to at least one embodiment of the present disclosure, the control rod comprises a drive section of the control rod, wherein the first driven surface of the first pawl is driven by the second drive movement of the control rod via the drive section of the control rod.

[0021] In a locking device according to at least one embodiment of the present disclosure, the first driven surface is designed in a concave shape.

[0022] In a locking device according to at least one embodiment of the present disclosure, a flat section is formed on the drive section of the control rod, wherein a spring force is applied to the control rod via the flat section through the resilient section.

[0023] In a locking device according to at least one embodiment of the present disclosure, the first locking pawl is released from the first locking position by the second drive movement.

[0024] In a locking device according to at least one embodiment of the present disclosure, a spring force is applied by the resilient section to the flat section of the control rod in order to push the control rod into the first limiting position.

[0025] In a locking device according to at least one embodiment of the present disclosure, the limiting block comprises a limiting counter surface, wherein the control rod is limited by the limiting block via the limiting counter surface, thereby limiting the control rod in the first limiting position.

[0026] According to another aspect of the present disclosure, a motor vehicle is provided which includes a hood and / or a door, wherein the hood and / or the door is provided with one of the locking devices described above. Brief description of the drawings

[0027] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with their description, serve to explain the principles of the present disclosure. The exemplary embodiments include the accompanying drawings to provide a further understanding of the present disclosure. The accompanying drawings are included in and form part of this description. Fig. Figure 1 is a schematic representation of the structure of a view of a locking device according to an embodiment of the present disclosure. Fig. Figure 2 is a schematic representation of the structure of a view of a bolt of a locking device according to an embodiment of the present disclosure. Fig. Figure 3 is a schematic representation of the structure of another view of a bolt of a locking device according to an embodiment of the present disclosure. Fig. Figure 4 is a schematic representation of the structure of a first locking pawl of a locking device according to an embodiment of the present disclosure. Fig. Figure 5 is a schematic representation of the structure of a second locking pawl of a locking device according to an embodiment of the present disclosure. Fig. Figure 6 is a schematic representation of the structure of a control rod of a locking device according to an embodiment of the present disclosure. Fig. Figure 7 is a schematic representation of the structure of a spring section of a locking device according to an embodiment of the present disclosure. Fig. Figure 8 is a schematic representation of the structure of a boundary block of a locking device according to an embodiment of the present disclosure. Fig. Figure 9 is a schematic representation of the structure of another view of a locking device according to an embodiment of the present disclosure. Fig. Figure 10 is a schematic representation of the structure of another view of a locking device according to an embodiment of the present disclosure. Fig. Figures 11 to 15 are schematic representations of an unlocking process of a locking device of an embodiment of the present disclosure. Fig. Figures 16 to 21 are schematic representations of a locking process of a lock device of an embodiment of the present disclosure. Reference symbol list: 100 bars, 101 first locking surface, 102 second locking surface, 200 first locking pawl, 201 first intervention area, 202 first boundary surface, 203 first powered area, 300 second locking pawl, 301 second intervention area, 302 slot section, 303 second driven surface, 400 control rod, 401 Engagement surface of the control rod, 402 Limiting surface of the control rod, 403 Drive section, 404 flat section, 405 columnar section, 406 Boundary section, 500 spring section, 501 spring arm, 600 boundary block, 601 Boundary opposite surface, 1000 locking devices. Specific embodiments

[0028] The present disclosure is described in more detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described here serve only to illustrate the relevant content and do not constitute a limitation of the present disclosure. It should also be noted that, for the sake of simplicity, only those parts relevant to the present disclosure are shown in the accompanying drawings.

[0029] It should be noted that the embodiments and features in the embodiments of this disclosure can be combined without conflict. The technical solutions of this disclosure are described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0030] Unless otherwise stated, the exemplary embodiments / exemplary embodiments shown are to be understood as illustrative features of various details of some of the possibilities that provide technical ideas which can be used to implement the present disclosure in practice. Therefore, unless otherwise stated, the features of the various embodiments / exemplary embodiments can be further combined, separated, exchanged and / or rearranged without deviating from the technical ideas of the present disclosure.

[0031] The cross-hatching and / or shading in the accompanying drawings generally serves to clarify the boundaries between adjacent parts. Unless otherwise specified, the presence or absence of cross-hatching or shading does not imply or indicate that specific materials, material properties, sizes, ratios, commonalities between the depicted parts, and / or other features, attributes, properties, etc., of the parts are preferred or required. Furthermore, for clarity and / or descriptive purposes, the sizes of the parts and their relative dimensions may be exaggerated in the accompanying drawings. If the exemplary embodiments can be implemented differently, a particular sequence of processes may be carried out in a different order than described.For example, two processes described sequentially can be carried out essentially simultaneously or in reverse order of the described sequence. Furthermore, the same reference symbols denote the same parts.

[0032] When a part is described as lying "on" or "over" another part, being "connected" to another part, or being "embedded" in another part, it can mean that the part lies directly on top of, is directly connected to, or is directly embedded in the other part, or it can mean that there is a part between them. When a part is described as lying "directly" on top of, being "directly" connected to, or being "directly" embedded in another part, there is no part between them. Thus, the term "connection" can refer to a physical connection, an electrical connection, etc., with or without parts in between.

[0033] For descriptive purposes, the present disclosure may use terms such as "under...", "on the underside", "below...", "below...", "above...", "on the top side", "above...", "higher", and "side-" (e.g., "side wall") and other spatially relative terms to describe the relationship of one part to another (further) part, as illustrated in the accompanying drawings. In addition to the orientations shown in the accompanying drawings, the spatially relative terms are intended to encompass various orientations of the device during use, operation, and / or manufacture. For example, if the device shown in the accompanying drawings is inverted, the part described as being "on the underside" or "below" another part or feature would subsequently be described as being "on the top side" of that other part or feature.Thus, the exemplary term "on the underside" can encompass both an orientation "on the top" and one "on the underside". Furthermore, the device can be positioned in additional ways (e.g., rotated 90 degrees or in other orientations); therefore, the spatially relative terms used here should be explained accordingly.

[0034] The terms used here serve to describe specific examples of implementation and are not to be understood as limitations. The singular forms "a" and "the" also include the plural forms unless the context clearly indicates otherwise. When the terms "comprehensive" and / or "inclusive" and variations thereof are used in this description, this means that the mentioned features, wholes, steps, actions, parts, components, and / or their groups are present, but the presence or addition of one or more other features, wholes, steps, actions, parts, components, and / or their groups is not excluded. It should also be noted that, as used here, terms such as "essentially," "approximately," and similar expressions serve as approximations and not as degrees.They are used to describe the inherent deviations in measured values, calculated values ​​and / or provided values ​​that are considered self-evident by a professional.

[0035] The construction of the locking device 1000 of the present disclosure will first be described with reference to the Fig. Figures 1 to 10 are described in detail. The "+" in each figure indicates the center of rotation.

[0036] According to one aspect of the present revelation, a locking device is provided. Fig. Figure 1 shows a locking device 1000 according to an embodiment of the present disclosure, comprising a bolt 100, a first locking pawl 200, a second locking pawl 300, a control rod 400 and a spring section 500.

[0037] The bolt 100 can be locked in a first locking position (main locking position) by the first locking pawl 200.

[0038] The bolt 100 can be locked in a second locking position (secondary locking position) by the second locking pawl 300. A rotation of the second locking pawl 300 can be partially transmitted to the first locking pawl 200 via the control rod 400, so that the bolt 100 is unlocked from the first locking position by the first locking pawl 200.

[0039] The spring-loaded section 500 applies a spring force to the control rod 400, so that the control rod 400 drives the first pawl 200 into the first locking position.

[0040] The first pawl 200 and the second pawl 300 have different centers of rotation.

[0041] In the locking device 1000 of this embodiment, a rotation of the second locking pawl 300 is partially transmitted via the control rod 400 to the first locking pawl 200, so that the first locking pawl 200 unlocks the bolt 100 from the first locking position, i.e. the first locking pawl 200 is triggered from the first locking position to unlock the bolt 100.

[0042] In the locking device 1000 of this embodiment, a spring-loaded section 500 is provided. The spring-loaded section 500 applies a spring force to the control rod 400, so that the control rod 400 drives the first pawl 200 into the first locking position to achieve a locking operation.

[0043] In the lock device 1000 of the present disclosure, the bolt 100 of the lock device 1000 comprises, with reference to the Fig. 2 and Fig. 3 a first locking surface 101 and a second locking surface 102, wherein the first locking pawl 200 locks the bolt 100 on the first locking surface 101 in the first locking position, and the second locking pawl 300 locks the bolt 100 on the second locking surface 102 in the second locking position.

[0044] Preferably, the first locking surface 101 is not in the same plane as the second locking surface 102.

[0045] Preferably, the plane in which the first locking surface 101 is located is parallel or substantially parallel to the plane in which the second locking surface 102 is located.

[0046] According to an optional embodiment of the present disclosure, the first locking surface 101 may comprise a partially curved surface and the second locking surface 102 may also comprise a partially curved surface.

[0047] Preferably the first locking pawl comprises 200 with reference to Fig. 4. In the locking device 1000 of each of the above embodiments, a first engagement surface 201 is provided. The first locking pawl 200 engages the first locking surface 101 at the first engagement surface 201 to lock the bolt 100 in the first locking position. The second locking pawl 300 comprises a second engagement surface 301. The second locking pawl 300 engages the second locking surface 102 at the second engagement surface 301 to lock the bolt 100 in the second locking position.

[0048] The overall shape of the first locking pawl 200 in Fig. Figure 4 is only one preferred form of the first pawl 200 of the present disclosure. Modifications to the form of the first pawl 200 made by a person skilled in the art based on a complete understanding of the technical solutions of the present disclosure are all within the scope of protection of the present disclosure.

[0049] In the locking device 1000 of each of the above embodiments, the first engagement surface 201 is with reference to the Fig. 1 and Fig. 2 a curved surface wherein the center of the circle of the first engagement surface 201 does not coincide with the center of rotation of the first pawl 200, so that a torque is generated by which the first pawl 200 is rotated in the direction of unlocking the latch 100 when the first engagement surface 201 is subjected to pressure.

[0050] In the locking device 1000 of each of the above embodiments, the circular center (B) of the first engagement surface 201 is located at an outer position of the pivot center of the first locking pawl 200, wherein the outer position is not in the area of ​​the position between the pivot center of the bolt 100 and the pivot center of the first locking pawl 200.

[0051] In Fig. Figure 4 shows the pivot point A of the first pawl 200, and the circle center B of the first engagement surface 201 is shown as an example.

[0052] By shaping the first engagement surface 201 of this embodiment, the position of the circular center of the first engagement surface 201 is adjusted by moving the circular center of the first engagement surface 201 towards the outside of the first locking pawl 200, thereby reducing the unlocking force.

[0053] In the locking device 1000 of each of the above embodiments, the first locking pawl 200 locks the bolt 100 in the first locking position under the first drive movement of the control rod 400, and the bolt 100 is released from the first locking position by the first locking pawl 200 under the second drive movement of the control rod 400.

[0054] In the locking device 1000 of each of the above embodiments, the first locking pawl 200 comprises, with reference to Fig. 4 further a first limiting surface 202, wherein the first limiting surface 202 is driven by the first drive movement of the control rod 400, so that the first engagement surface 201 of the first pawl 200 engages with the first locking surface 101 of the bolt 100, thereby holding the bolt 100 in the first locking position.

[0055] In the locking device 1000 of each of the above embodiments, the first locking pawl 200 comprises, with reference to Fig. 4 further a first driven surface 203, wherein the first driven surface 203 is driven by the second drive movement of the control rod 400, so that the first engagement surface 201 of the first pawl 200 is released from engagement with the first locking surface 101 of the bolt 100, thereby releasing the bolt 100 from the first locking position.

[0056] According to a preferred embodiment of the present disclosure, the locking device comprises 1000 with reference to Fig. 1 further a limiting block 600, wherein the limiting block 600 limits the control rod 400 in a first limiting position, whereby the control rod 400 is limited in the first limiting position when the bolt 100 is locked by the first pawl 200 under the first drive movement of the control rod 400 in the first locking position, so that the control rod 400 keeps the first engagement surface 201 of the first pawl 200 in engagement with the first locking surface 101 of the bolt 100.

[0057] Preferably, the control rod 400 is released from the first limit position when the first locking pawl 200 releases the latch 100 from the first locking position during the second drive movement of the control rod 400.

[0058] In the locking device 1000 according to the preferred embodiment of the present disclosure, a spring force is applied to the control rod 400 by the resilient section 500 in order to hold the control rod 400 in the first limiting position when the control rod 400 is limited in the first limiting position by the limiting block 600.

[0059] The resilient section 500 can be a spring. With reference to Fig. 7 the spring has a spring arm 501 (spring pin), whereby a spring force is applied to the control rod 400 via the spring arm 501.

[0060] In the locking device 1000 of each of the above embodiments, the second locking pawl 300 comprises, with reference to the Fig. 5 and Fig. 6 a slotted section 302, and the control rod 400 comprises a drive section, wherein the drive section is provided within the slotted section 302, so that the control rod 400 can be moved by the movement of the second pawl 300.

[0061] In the locking device 1000 of the present embodiment, the control rod 400 can be driven into motion by the second locking pawl 300 by the fact that the second locking pawl 300 is provided with the slotted section 302.

[0062] Preferably, the drive section of the control rod 400 is engaged in the slot section 302 and can slide / move in the slot of the slot section 302.

[0063] In the locking device 1000 of each of the above embodiments, the second locking pawl 300 comprises, with reference to Fig. 5 a second driven surface 303, wherein the second driven surface 303 is driven by a driving motion of an external drive mechanism.

[0064] In the locking device 1000 of each of the above embodiments, the drive section of the control rod 400 comprises, with reference to Fig. 6 a column-shaped section 405 and a limiting section 406, wherein the column-shaped section 405 is arranged inserted in the slot section 302, and the column-shaped section 405 is limited by the limiting section 406 within the slot section 302 to prevent the driver section from being pushed out of the slot section 302.

[0065] The in Fig. The illustrated assembly of the control rod 400 is only one assembly of the control rod in the preferred embodiments of the present disclosure. Modifications to the assembly of the control rod made by a person skilled in the art, based on a complete understanding of the technical solutions of the present disclosure, all fall within the scope of protection of the present disclosure.

[0066] With reference to the Fig. 6 and Fig. In the first drive movement of the control rod 400, the control rod 400 comprises an engagement surface 401 and a limiting surface 402. The first limiting surface 202 of the first pawl 200 is driven via the engagement surface 401, and the control rod 400 is limited by the limiting block 600 via the limiting surface 402. In the locking device 1000 of each of the above embodiments, the control rod 400 further comprises a drive section 403, the first driven surface 203 of the first pawl 200 being driven via the drive section 403 by the second drive movement of the control rod 400.

[0067] According to a preferred embodiment of the present disclosure, the drive section 403 of the control rod is designed in the form of a column. Preferably, the drive section 403 of the control rod is coaxial or substantially coaxial with the column-shaped section 405.

[0068] According to a preferred embodiment of the present disclosure, the first driven surface 203 is designed in a concave shape.

[0069] In the locking device 1000 of each of the above embodiments, a flat section 404 is formed on the drive section 403 of the control rod, wherein a spring force is applied to the control rod 400 via the flat section 404 by the resilient section 500.

[0070] In the locking device 1000 of each of the above embodiments, the first locking pawl 200 is released from the first locking position (i.e., released from the first limiting position) by the second drive movement mentioned above.

[0071] In the locking device 1000 of each of the above embodiments, a spring force is preferably applied via the spring arm 501 through the spring section 500 to the flat section 404 of the control rod 400 in order to push the control rod 400 into the first limit position (i.e. the first locking position).

[0072] In the locking device 1000, each of the above embodiments comprises the limiting block 600 with reference to Fig. 8 a limiting counter surface 601, wherein the control rod 400 is limited by the limiting block 600 via the limiting counter surface 601, thereby limiting the control rod 400 in the first limiting position.

[0073] According to another aspect of the present disclosure, a motor vehicle is provided which includes a hood or a door, wherein the hood or door is provided with the locking device 1000 of one of the above embodiments. The unlocking process of the locking device of the present disclosure is described below with reference to the Fig. Items 11 to 15 are described in detail.

[0074] Initially, the bolt 100 is locked in the main locking position (first locking position) by the first pawl 200. When the second driven surface 303 of the second pawl 300 is actuated by the unlocking mechanism (not shown), the control rod 400 is driven by the second pawl 300 to rotate counterclockwise, thereby pushing the control rod 400 out of the limiting block 600, as shown in Fig. 11 shown. Subsequently, the control rod 400 is further driven by the second pawl 300 to rotate clockwise, and the drive section 403 (which can take the form of a drive surface) pushes the first pawl 200 on the first driven surface 203 to rotate clockwise, thereby pushing the first pawl 200 out of the first locking surface 101 and thereby unlocking the bolt 100, as shown in Fig. 12 shown. The bolt 100 then rotates clockwise into the fully open position, as shown in Fig. Figure 13 shows that when the second driven surface 303 of the second pawl 300 is released, the first pawl 200 and the second pawl 300 are held against the bolt 100 by the spring section 500 (which acts as a return spring), and the control rod 400 is held against the limiting block 600 by the spring section 500, thus unlocking the locking device. As shown in the Fig. 14 and Fig. The 15 shown illustrate the Fig. 14 and Fig. 15 an unlocked state of the locking device from different views.

[0075] The locking process of the lock device of the present disclosure is described below with reference to the Fig. 16 to 21 are described in detail.

[0076] As in the Fig. 16 and Fig. Figure 17 illustrates from different views that the bolt 100 is in a fully open position, with the first locking pawl 200 and the second locking pawl 300 in contact with the bolt 100.

[0077] When the bolt 100 is pressed to rotate into the secondary locking position (second locking position), the second locking pawl 300 rotates clockwise (in Fig. 16) into the secondary locking position to achieve the locking of the locking device 1000 in the secondary locking position, as in Fig. 18 shown. Subsequently, as the bolt 100 continues to rotate to reach the main locking position (first locking position), the first pawl 200 enters the main locking position, thereby locking the bolt 100 in the main locking position, and simultaneously the control rod 400 is inserted by the control rod spring (the spring-loaded section 500) between the first pawl 200 and the limiting block 600, thereby limiting the first pawl 200 in the main locking position to improve the reliability of the locking device, as shown in the Fig. Shown 19 to 21.

[0078] In the locking device of the present disclosure, the reliability of the locking of the first pawl and the bolt is improved by, for example, providing the control rod, the spring section (the spring of the control rod), and the limiting block on the outside of the first pawl, and the release of the first pawl and the reduction of the unlocking force are achieved by the connection of the second pawl and the control rod. The locking device of the present disclosure is compact, simple, and efficient in design and is suitable for use in a variety of hood or door systems, in particular for hoods or doors of automotive systems.

[0079] In this description, the terms “an embodiment,” “some embodiments,” “example,” “specific example,” or “some examples” mean that the specific features, structures, materials, or properties described in connection with that embodiment or example are included in at least one of the embodiments or examples of this disclosure. In this description, the schematic representations of the above terms need not refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or properties may be combined in any or more embodiments or examples in any suitable manner.Furthermore, the person skilled in the art can combine different embodiments / designs or examples and features of different embodiments / designs or examples described in the description without contradicting each other.

[0080] Furthermore, the terms "first," "second," etc., serve only for descriptive purposes and are not to be understood as indicating their relative importance or as implicitly specifying the number of the technical features mentioned. Thus, features designated as "first" and "second" explicitly or implicitly indicate that there is at least one such feature. In the description of this disclosure, "several" means at least two, e.g., two or three, unless expressly limited otherwise.

[0081] The person skilled in the art should understand that the embodiments described above serve only to illustrate the present disclosure and are not intended to limit its scope. Other modifications or variations may be made based on the above disclosure, and such modifications or variations still fall within the scope of the present disclosure.

Claims

[1] Locking device (1000), comprising: - one bar (100), - a first locking pawl (200), wherein the first locking pawl (200) allows the bolt (100) to be locked in a first locking position, - a second locking pawl (300), wherein the second locking pawl (300) allows the bolt (100) to be locked in a second locking position, and - a control rod (400), wherein - the first pawl (200) can be blocked in the first locking position by the control rod (400) when the first pawl (200) is engaged with the bolt (100), and the second pawl (300) interacts simultaneously or sequentially with the control rod (400) and the first pawl (200) during its movement to allow the first pawl (200) to move in a direction in which it is released from the first locking position of the bolt (100), and - the locking device (1000) further comprises a spring section (500), wherein the spring section (500) applies a spring force to the control rod (400), so that the control rod (400) drives the first pawl (200) in the direction of engagement with the bolt (100) in the first locking position, - wherein the spring section (500) is a spring with a spring arm (501) and the spring exerts an elastic force on the control rod (400) via the spring arm (501), - the locking device (1000) further comprises a limiting block (600), wherein the limiting block (600) limits the control rod (400) in a first limiting position when the bolt (100) is locked in the first locking position by the first pawl (200) under a first driving movement of the control rod (400), and the spring force is applied to the control rod (400) by the resilient section (500) to hold the control rod (400) in the first limiting position when the control rod (400) is limited in the first limiting position by the limiting block (600), wherein the first pawl (200) and the second pawl (300) have different centers of rotation, wherein the bolt (100) comprises a first locking surface (101) formed by a first section of the bolt (100), and a second locking surface (102), which is formed by a second section of the bar (100),wherein the first locking pawl (200) engages with the first locking surface (101) when the bolt (100) is in the first locking position, and the second locking pawl (300) engages with the second locking surface (102) when the bolt (100) is in the second locking position, wherein the first section and the second section are arranged in different planes perpendicular to an axis of rotation of the bolt (100). [2] Locking device (1000) according to claim 1, characterized by , that the bolt (100) comprises the first locking surface (101) and the second locking surface (102), wherein the bolt (100) is locked at the first locking surface (101) in the first locking position by the first locking pawl (200), and the bolt (100) is locked at the second locking surface (102) in the second locking position by the second locking pawl (300). [3] Locking device (1000) according to claim 2, characterized by , that the first pawl (200) comprises a first engagement surface (201), wherein the first pawl (200) engages with the first locking surface (101) at the first engagement surface (201) to lock the bolt (100) in the first locking position, and the second pawl (300) comprises a second engagement surface (301), wherein the second pawl (300) engages with the second locking surface (102) at the second engagement surface (301) to lock the bolt (100) in the second locking position. [4] Locking device (1000) according to claim 3, characterized by, that the first engagement surface (201) is a curved surface, wherein a circle center (B) of the first engagement surface (201) does not coincide with the center of rotation (A) of the first pawl (200), so that a torque is generated by which the first pawl (200) is rotated in the direction of unlocking the latch (100) when the first engagement surface (201) is subjected to pressure. [5] Locking device (1000) according to claim 4, characterized by , that the center of the circle (B) of the first engagement surface (201) is located at an outer position of the center of rotation (A) of the first pawl (200), wherein the outer position is not in the area of ​​the position between the center of rotation of the bolt (100) and the center of rotation (A) of the first pawl (200). [6] Locking device (1000) according to claim 5, characterized by, that the first locking pawl (200) releases the bolt (100) from the first locking position under a second drive movement of the control rod (400). [7] Locking device (1000) according to claim 6, characterized by , that the first pawl (200) further comprises a first boundary surface (202), wherein the first boundary surface (202) is driven by the first drive movement of the control rod (400), so that the first engagement surface (201) of the first pawl (200) engages with the first locking surface (101) of the bolt (100), thereby holding the bolt (100) in the first locking position. [8] Locking device (1000) according to claim 7, characterized by, that the first pawl (200) further comprises a first driven surface (203), wherein the first driven surface (203) is driven by the second driving movement of the control rod (400), so that the first engagement surface (201) of the first pawl (200) is released from engagement with the first locking surface (101) of the bolt (100), thereby releasing the bolt (100) from the first locking position. [9] motor vehicle, characterized by , comprising a hood and / or a door, wherein the hood and / or the door is provided with a locking device (1000) according to any one of claims 1 to 8.

Images