Double-pull front cabin cover lock device

Abstract

The invention provides a double-pull front cabin cover lock device which comprises a bottom plate, a locking mechanism and an unlocking mechanism, the locking mechanism comprises a pawl and a ratchet wheel, the pawl and the ratchet wheel have a full-open state, a half-lock state and a full-lock state, and the pawl is provided with a pawl abutting part; the unlocking mechanism comprises a release rod and a connecting rod, a rotating shaft of the release rod is arranged on the bottom plate, and the connecting rod is arranged on the release rod; when the release rod is controlled by external force to rotate from an initial position in a first rotating direction, the release rod drives the connecting rod to rotate from the initial position, and in a full-locking state, the release rod drives the first matching part of the connecting rod to abut against the pawl abutting part so as to push the pawl to be in a semi-locking state with the ratchet wheel; and in the semi-locking state, the second matching part of the connecting rod is driven to abut against the pawl abutting part so as to push the pawl to be in a full-opening state with the ratchet wheel. In the unlocking process, a user can achieve the unlocking purpose by continuously pulling the release rod twice, and convenient and fast operation experience is provided for the user.

Description

Technical Field

[0001] The invention relates to the field of automobile opening and closing parts, and in particular to a double-pull front hatch cover locking device. Background Art

[0002] The traditional hood lock is equipped with a safety hook on the lock body. To open the hood, the user needs to pull the unlocking handle inside the car to unlock the first lock, and then go outside the car to pull the safety hook to unlock the second lock, which provides a poor operating experience. Summary of the invention

[0003] In view of this, the embodiments of the present invention are dedicated to providing a double-pull front hood lock device and a car to solve the problem in the prior art that the user needs to pull the unlocking handle inside the car to unlock the first lock, and then go outside the car to pull the safety hook to unlock the second lock, resulting in a poor operating experience.

[0004] In one aspect, the present invention provides a double-pull front hatch cover locking device, comprising:

[0005] Base plate;

[0006] A locking mechanism, the locking mechanism comprising a pawl and a ratchet, the pawl and the ratchet having a fully open state, a half-locked state and a fully locked state, and the pawl is provided with a pawl abutment portion;

[0007] An unlocking mechanism, the unlocking mechanism comprising a release rod and a connecting rod, the rotation axis of the release rod is arranged on the bottom plate, the connecting rod is arranged on the release rod and is provided with a first connecting rod matching portion and a second connecting rod matching portion;

[0008] The release rod is constructed to drive the connecting rod to rotate from the initial position when it is controlled by an external force to rotate along the first rotation direction from the initial position, wherein, in the fully locked state, the first matching portion of the connecting rod is driven to abut against the pawl abutment portion to push the pawl to a semi-locked state with the ratchet; in the semi-locked state, the second matching portion of the connecting rod is driven to abut against the pawl abutment portion to push the pawl to a fully open state with the ratchet.

[0009] In one embodiment of the present application, the connecting rod is eccentrically arranged on one side of the release rod, and a first pulling portion is arranged on the side of the release rod where the connecting rod is arranged, and a second pulling portion is arranged on the side where the connecting rod is not arranged.

[0010] In one embodiment of the present application, the release lever is configured to be coaxial with the pawl and relatively free to rotate;

[0011] The rotating shaft of the connecting rod is arranged on the release rod and can rotate freely. It is constructed so that when the first matching part of the connecting rod abuts with the pawl abutment part, the relative angle between the connecting rod and the release rod is different from that when the second matching part of the connecting rod abuts with the pawl abutment part.

[0012] In one embodiment of the present application, in the fully locked state, the release lever rotates from the initial position along the first rotation direction, and in the process of driving the connecting rod to rotate together, the first matching portion of the connecting rod and the pawl abutting portion are opposite to each other in the first rotation direction, so that the first matching portion of the connecting rod abuts against the pawl abutting portion, pushing the pawl to be in a semi-locked state with the ratchet wheel;

[0013] In the semi-locked state, the release rod rotates from the initial position along the first rotation direction, and drives the connecting rod to rotate together. The second matching portion of the connecting rod is opposite to the pawl abutment portion in the first rotation direction, so that the second matching portion of the connecting rod abuts against the pawl abutment portion, pushing the pawl to be in a fully open state with the ratchet.

[0014] In one embodiment of the present application, the second matching portion of the connecting rod is configured to protrude in the first rotation direction relative to the first matching portion of the connecting rod.

[0015] In one embodiment of the present application, the unlocking mechanism also includes a connecting rod reset elastic member, which is constructed to drive the connecting rod to rotate along a second rotation direction under the action of its own elastic force, and the second rotation direction is opposite to the first rotation direction.

[0016] In one embodiment of the present application, a first limiting portion is provided on the bottom plate, and the first limiting portion is constructed to limit the rotation angle of the connecting rod in the second rotation direction when the connecting rod is in the initial position, so as to ensure that in the fully locked state, the release rod rotates from the initial position along the first rotation direction, and drives the connecting rod to rotate together, and the first matching portion of the connecting rod is opposite to the pawl abutment portion in the first rotation direction.

[0017] In one embodiment of the present application, a connecting rod limiting portion is provided on the connecting rod, and the connecting rod limiting portion is configured to abut against the first limiting portion when the connecting rod is in an initial position to limit the rotation angle of the connecting rod in the second rotation direction.

[0018] In one embodiment of the present application, a second limiting portion is provided on the release rod, and the second limiting portion is constructed to limit the rotation angle of the connecting rod in the second rotation direction to ensure that in a semi-locked state, the release rod rotates from an initial position along the first rotation direction and drives the connecting rod to rotate together, and the second matching portion of the connecting rod is opposite to the pawl abutment portion in the first rotation direction.

[0019] In one embodiment of the present application, the second limiting portion is configured to abut against a side surface of the first matching portion of the connecting rod to limit a rotation angle of the connecting rod in the second rotation direction.

[0020] In one embodiment of the present application, the unlocking mechanism also includes a release rod reset elastic member, which is constructed to drive the release rod to rotate along a second rotation direction under the action of its own elastic force, and the second rotation direction is opposite to the first rotation direction.

[0021] In one embodiment of the present application, a pop-up mechanism is further included, which includes a pop-up rod and a pop-up elastic member. A lifting portion is provided on the pop-up rod. The pop-up rod is constructed to be controlled by the elastic force of the pop-up elastic member, and the locking buckle is lifted by the lifting portion.

[0022] During the use of the double-pull front hood lock device of the present invention, the pawl and the ratchet are usually in a fully locked state, thereby locking the lock buckle to the double-pull front hood lock device. When the user needs to unlock the double-pull front hood lock device of the present invention, the release rod is pulled directly or indirectly, so that the release rod can rotate from the initial position along the first rotation direction, driving the connecting rod to rotate from the initial position, and the first matching portion of the connecting rod can abut against the pawl abutment portion to push the pawl to a semi-locked state with the ratchet. After switching to the semi-locked state, the user releases the release rod, and the release rod and the connecting rod are restored to the initial position.

[0023] Then, in the semi-locked state, the user pulls the release lever again, so that the release lever can rotate again from the initial position along the first rotation direction, and drives the connecting rod to rotate from the initial position again. At this time, the second matching portion of the connecting rod abuts against the pawl abutting portion to push the pawl to the fully open state with the ratchet wheel, thereby releasing the lock. In the fully open state, the user releases the release lever again, and the release lever and the connecting rod are restored to the initial position again to prepare for the next unlocking.

[0024] It can be seen that in the unlocking process of the double-pull front hood lock device of the present invention, the user can achieve the unlocking purpose by continuously pulling the release rod twice. When the double-pull front hood lock device of the present invention is installed on the front hood of the car, the user only needs to pull the handle corresponding to the double-pull front hood lock device of the present invention twice to unlock the front hood of the car; the user does not need to unlock the double-pull front hood lock device in the car and then unlock the safety hook outside the car to open the front hood, which provides a convenient and fast operation experience for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the double-pull front hatch cover locking device of the present invention;

[0026] Figure 2 It is a partial structural schematic diagram of the double-pull front hatch lock device of the present invention;

[0027] Figure 3 for Figure 2 A partially enlarged schematic diagram of the

[0028] Figure 4 The figure is a schematic structural diagram of the ratchet of the double-pull front hatch lock device of the present invention;

[0029] Figure 5 The figure is a schematic structural diagram of the ratchet wheel of the double-pull front hatch lock device of the present invention;

[0030] Figure 6 It is a schematic structural diagram of a release lever of a double-pull front hatch lock device of the present invention;

[0031] Figure 7 It is a schematic structural diagram of the connecting rod of the double-pull front hatch lock device of the present invention;

[0032] Figure 8A-8C It is a partial structural schematic diagram of the double-pull front hatch lock device of the present invention during the locking process from the fully open state to the half-locked state and then to the fully locked state;

[0033] Figure 9A-9J It is a partial structural schematic diagram of the double-pull front hatch lock device of the present invention during the unlocking process from the fully locked state to the half-locked state and then to the fully opened state;

[0034] Figure ID:

[0035] 100, double-pull front hatch lock device; 10, locking mechanism; 11, ratchet; 111, ratchet abutment portion; 112, ratchet clamping portion; 12, ratchet resetting elastic member; 13, ratchet; 131, ratchet first matching portion; 132, ratchet second matching portion; 14, ratchet resetting elastic member; 20, unlocking mechanism; 21, release lever; 211, first pulling portion; 212, second pulling portion; 213, second limiting portion; 2 2. Release rod reset elastic member; 23. Connecting rod; 231. Connecting rod first matching portion; 232. Connecting rod second matching portion; 233. Connecting rod limiting portion; 24. Connecting rod reset elastic member; 30. Bottom plate; 311. Locking mouth; 32. First limiting portion; 40. Pop-up mechanism; 41. Pop-up rod; 411. Lifting portion; 42. Pop-up elastic member; 50. Detection sensor; 51. Micro switch; 200. Lock. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The invention provides a double-pull front hood lock device, comprising a bottom plate, a locking mechanism and an unlocking mechanism. The bottom plate is used to install various components in the double-pull front hood lock device and to fix the double-pull front hood lock device of the invention on a position such as a front engine compartment of a car.

[0038] The locking mechanism includes a pawl and a ratchet, and the pawl and the ratchet have a fully open state, a semi-locked state and a fully locked state. When the pawl and the ratchet are in the semi-locked state and the fully locked state, the lock catch can be locked on the double-pull front hatch lock device to achieve the locking purpose; when the pawl and the ratchet are in the fully open state, the lock catch can be released to achieve the unlocking purpose.

[0039] The unlocking mechanism includes a release rod and a connecting rod. The rotation axis of the release rod is arranged on the bottom plate. The connecting rod is arranged on the release rod and is provided with a first matching portion and a second matching portion of the connecting rod. The pawl is provided with a pawl abutting portion.

[0040] Specifically, the release rod is constructed to drive the connecting rod to rotate from the initial position when it is controlled by an external force to rotate along the first rotation direction from the initial position, wherein, in the fully locked state, the first matching portion of the connecting rod is driven to abut against the pawl abutment portion to push the pawl to a semi-locked state with the ratchet; in the semi-locked state, the second matching portion of the connecting rod is driven to abut against the pawl abutment portion to push the pawl to a fully open state with the ratchet.

[0041] That is, during the use of the double-pull front hood lock device of the present invention, the pawl and the ratchet are usually in a fully locked state, so that the lock buckle is locked on the double-pull front hood lock device. When the user needs to unlock the double-pull front hood lock device of the present invention, the release rod is pulled directly or indirectly, so that the release rod can rotate from the initial position along the first rotation direction, driving the connecting rod to rotate from the initial position, and the first matching portion of the connecting rod can abut against the pawl abutting portion to push the pawl to a semi-locked state with the ratchet. After switching to the semi-locked state, the user releases the release rod, and the release rod and the connecting rod are restored to the initial position.

[0042] Then, in the semi-locked state, the user pulls the release lever again, so that the release lever can rotate again from the initial position along the first rotation direction, and drives the connecting rod to rotate from the initial position again. At this time, the second matching portion of the connecting rod abuts against the pawl abutting portion to push the pawl to the fully open state with the ratchet wheel, thereby releasing the lock. In the fully open state, the user releases the release lever again, and the release lever and the connecting rod are restored to the initial position again to prepare for the next unlocking.

[0043] It can be seen that in the unlocking process of the double-pull front hood lock device of the present invention, the user can achieve the unlocking purpose by continuously pulling the release rod twice. When the double-pull front hood lock device of the present invention is installed on the front hood of the car, the user only needs to pull the handle corresponding to the double-pull front hood lock device of the present invention twice to unlock the front hood of the car; the user does not need to unlock the double-pull front hood lock device in the car and then unlock the safety hook outside the car to open the front hood, which provides a convenient and fast operation experience for the user.

[0044] Compared with the existing double-pull front hood lock device, the double-pull front hood lock device of the present invention utilizes two different matching parts of a single connecting rod to respectively abut against the pawl abutment part during the two-stage unlocking process, which effectively simplifies the corresponding unlocking mechanism. It is not only simple to assemble, but also reduces the parts cost of the double-pull front hood lock device of the present invention.

[0045] For ease of understanding, refer to Figures 1 to 9J , the double-pull front hatch lock device and the automobile of the present invention are described in detail in conjunction with embodiments.

[0046] like Figures 1 to 3 As shown, the present invention provides a double-pull front hood lock device 100, comprising a base plate 30, a locking mechanism 10 and an unlocking mechanism 20. The base plate 30 is used to install various components in the double-pull front hood lock device 100, and is used to fix the double-pull front hood lock device 100 of the present invention on a position such as a front engine compartment of a car.

[0047] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the locking mechanism 10 includes a pawl 11 and a ratchet 13, and the pawl 11 and the ratchet 13 have a fully open state, a semi-locked state and a fully locked state. When the pawl 11 and the ratchet 13 are in the semi-locked state and the fully locked state, the lock buckle 200 can be locked on the double-pull front hatch lock device 100 to achieve the locking purpose; when the pawl 11 and the ratchet 13 are in the fully open state, the lock buckle 200 can be released to achieve the unlocking purpose.

[0048] Specifically, Figure 4 and Figure 5 As shown, in one embodiment of the present invention, the rotation axis of the pawl 11 is arranged on the base plate 30, and includes a pawl clamping portion 112; the rotation axis of the ratchet 13 is arranged on the base plate 30, includes a ratchet first matching portion 131 and a ratchet second matching portion 132, and is constructed so that when the ratchet 13 is in a fully open state, the ratchet 13 is rotated along the second rotation direction N by an external force, and the pawl clamping portion 112 is driven to move to abut against the ratchet first matching portion 131 to enter a semi-locked state; when the ratchet 13 is in a semi-locked state, the ratchet 13 is rotated along the second rotation direction N by an external force, and the pawl clamping portion 112 is driven to move to abut against the ratchet second matching portion 132 to enter a fully locked state.

[0049] That is FIG. 8A to FIG. 8C As shown, before the double-pull front hood lock device 100 of the present invention is locked, the pawl 11 and the ratchet 13 are in a fully open state. During the locking process of the double-pull front hood lock device 100 of the present invention, the lock buckle 200 can push the ratchet 13 to rotate along the second rotation direction N, thereby driving the pawl clamping portion 112 to move to abut against the ratchet first matching portion 131 to enter a semi-locked state; then, the lock buckle 200 can continue to push the ratchet 13 to rotate along the second rotation direction N, driving the pawl clamping portion 112 to move to abut against the ratchet second matching portion 132 to enter a fully locked state, thereby achieving the locking of the lock buckle 200.

[0050] It can be seen that during the locking process of the double-pull front hood lock device 100 of the present invention, the user can continuously press the lock buckle 200 once to realize the transition of the double-pull front hood lock device 100 of the present invention from a fully open state to a half-locked state and then to a fully locked state, without the user having to press the lock buckle 200 twice, thereby effectively simplifying the locking process and improving the user experience.

[0051] It is understandable that if Figure 5As shown, in order to ensure that the pawl engaging portion 112 can sequentially abut against the first ratchet matching portion 131 and the second ratchet matching portion 132 during the rotation of the ratchet 13, and can also be maintained in a fully locked state and a semi-locked state, the first ratchet matching portion 131 and the second ratchet matching portion 132 can be stepped as a whole to ensure that the pawl engaging portion 112 can maintain a stable engagement with the first ratchet matching portion 131 and the second ratchet matching portion 132; and an arc-shaped or linear guide surface is provided between the first ratchet matching portion 131 and the second ratchet matching portion 132 to ensure that the pawl engaging portion 112 can switch from a state of abutting against the first ratchet matching portion 131 to a state of abutting against the second ratchet matching portion 132. The specific shapes of the first ratchet matching portion 131 and the second ratchet matching portion 132, and the shape of the guide surface can be actually set, and are not limited here.

[0052] Further, such as Figure 1 As shown, in one embodiment of the present invention, the locking mechanism 10 also includes a pawl reset elastic member 12 and a ratchet reset elastic member 14; the pawl reset elastic member 12 is constructed to drive the pawl 11 to rotate along the second rotation direction N under the action of its own elastic force; the ratchet reset elastic member 14 is constructed to drive the ratchet 13 to rotate along the first rotation direction M under the action of its own elastic force.

[0053] It can be seen that by providing the pawl reset elastic member 12 and the ratchet reset elastic member 14, and making the rotation direction of the pawl 11 driven by the pawl reset elastic member 12 opposite to the rotation direction of the ratchet 13 driven by the ratchet reset elastic member 14, the pawl 11 and the ratchet 13 can be facilitated to abut and engage with each other by utilizing the pawl clamping portion 112 and the ratchet first matching portion 131 or the ratchet second matching portion 132, thereby maintaining the double-pull front hatch lock device 100 of the present invention in a semi-locked state or a fully locked state, avoiding dangerous situations such as dislocking.

[0054] like Figures 1 to 3 , Figure 6 and Figure 7 As shown, the unlocking mechanism 20 includes a release rod 21 and a connecting rod 23. The rotation axis of the release rod 21 is set on the base plate 30. The connecting rod 23 is set on the release rod 21 and is provided with a first connecting rod matching portion 231 and a second connecting rod matching portion 232. The pawl 11 is provided with a pawl abutment portion 111.

[0055] Specifically, the release rod 21 is constructed to drive the connecting rod 23 to rotate from the initial position when it is controlled by an external force to rotate along the first rotation direction M from the initial position, wherein, in the fully locked state, the first matching portion 231 of the connecting rod is driven to abut against the pawl abutment portion 111 to push the pawl 11 to a semi-locked state with the ratchet 13; in the semi-locked state, the second matching portion 232 of the connecting rod is driven to abut against the pawl abutment portion 111 to push the pawl 11 to a fully open state with the ratchet 13.

[0056] That is Fig. 9A As shown, during the use of the double-pull front hood lock device 100 of the present invention, the pawl 11 and the ratchet wheel 13 are usually in a fully locked state, thereby locking the lock buckle 200 on the double-pull front hood lock device 100. FIG. 9B to FIG. 9E As shown, when the user needs to unlock the double-pull front hood lock device 100 of the present invention, the user directly or indirectly pulls the release lever 21, so that the release lever 21 can rotate from the initial position along the first rotation direction M, driving the connecting rod 23 to rotate from the initial position, and the connecting rod first matching portion 231 of the connecting rod 23 can abut against the pawl abutting portion 111, so as to push the pawl 11 to be in a semi-locked state with the ratchet wheel 13. Fig.9F As shown, after switching to the semi-locked state, the user releases the release rod 21, and the release rod 21 and the connecting rod 23 are restored to the initial position.

[0057] Then, if Figure 9G , Figure 9H and Fig.9I As shown, in the semi-locked state, the user pulls the release lever 21 again, so that the release lever 21 can rotate again from the initial position along the first rotation direction M, and drives the connecting rod 23 to rotate from the initial position again. At this time, the connecting rod second matching portion 232 of the connecting rod 23 abuts against the pawl abutting portion 111 to push the pawl 11 to the fully open state with the ratchet wheel 13, thereby releasing the lock buckle 200. Figure 9J As shown, in the fully open state, the user releases the release rod 21 again, and the release rod 21 and the connecting rod 23 are restored to the initial position again to prepare for the next unlocking.

[0058] It can be seen that in the unlocking process of the double-pull hood lock device 100 of the present invention, the user can achieve the unlocking purpose by continuously pulling the release rod 21 twice. When the double-pull hood lock device 100 of the present invention is installed on the front hood of the car, the user only needs to pull the handle corresponding to the double-pull hood lock device 100 of the present invention twice to unlock the front hood of the car; the user does not need to unlock the double-pull hood lock device 100 in the car and then unlock the safety hook outside the car to open the front hood, which provides a convenient and fast operation experience for the user.

[0059] Compared with the existing double-pull front bonnet lock device 100, the double-pull front bonnet lock device 100 of the present invention utilizes two different mating parts of a single connecting rod 23 to respectively abut against the pawl abutment part 111 during the two-stage unlocking process, thereby effectively simplifying the corresponding unlocking mechanism 20. This is not only simple to assemble, but also reduces the parts cost of the double-pull front bonnet lock device 100 of the present invention.

[0060] like Figure 3 and Figure 6As shown, in one embodiment of the present invention, the connecting rod 23 is eccentrically arranged on one side of the release rod 21, and the side of the release rod 21 where the connecting rod 23 is arranged is provided with a first pulling portion 211, and the side where the connecting rod 23 is not arranged is provided with a second pulling portion 212; the double-pull front hatch lock device 100 is used in conjunction with a pulling rope, the pulling rope is fixed to the first pulling portion 211 or the second pulling portion 212, and is constructed to be controlled by an external force to drive the release rod 21 to rotate along the first rotation direction M.

[0061] In this way, no matter the pulling rope is fixed to the first pulling part 211 or the pulling rope is fixed to the second pulling part 212, it can be controlled by external force to drive the release rod 21 to rotate along the first rotation direction M, thereby realizing the unlocking of the double-pull front hatch lock device 100 of the present invention, thereby facilitating the flexible setting of the extension direction of the pulling rope and better meeting the installation requirements.

[0062] Further, such as Figure 6 As shown, in one embodiment of the present invention, the moving direction Q of the pulling rope controlled by the external force when it is fixed to the first pulling part 211 is opposite to the moving direction R of the pulling rope controlled by the external force when it is fixed to the second pulling part 212 .

[0063] Specifically, Figure 6 When the pulling rope is fixed to the first pulling part 211, it can drive the release rod 21 to rotate along the first rotation direction M when it is controlled to move to the right by an external force; when the pulling rope is fixed to the second pulling part 212, it can drive the release rod 21 to rotate along the first rotation direction M when it is controlled to move to the left by an external force.

[0064] It can be understood that when the double-pull hood lock device 100 of the present invention is applied to a car to lock the lock buckle 200 on the hood, since cars are divided into left-hand drive and right-hand drive, that is, the driver's seat is set on the left side and the right side of the car body, and in order to facilitate the driver to unlock the hood, the handle of the hood is usually set near the outside of the driver.

[0065] Thus, when the handle is in Figure 1 When the handle is on the right side, the pulling rope can be fixed to the first pulling portion 211. In this way, when the user pulls the handle and then pulls the pulling rope to move to the right, the release lever 21 can be driven to rotate along the first rotation direction M, thereby unlocking the double-pull front hatch lock device 100 of the present invention. Figure 1 When the left side is in the middle, the pulling rope can be fixed to the second pulling portion 212. In this way, when the user pulls the handle and then pulls the pulling rope to move to the left, the release rod 21 can also be driven to rotate along the first rotation direction M, thereby unlocking the double-pull front hatch lock device 100 of the present invention.

[0066] It can be seen that when the double-pull hood lock device 100 of the present invention is applied to a car, no matter the car is left-hand drive or right-hand drive, there is no need to adjust the setting direction of the double-pull hood lock device 100 of the present invention, nor is there a need to prepare two sets of double-pull hood lock devices 100 that are mirror images of each other for left-hand drive cars and right-hand drive cars. In addition, when the double-pull hood lock device 100 of the present invention is applied to left-hand drive cars and right-hand drive cars, the same arrangement position and direction can be maintained, and the designer only needs to adjust the fixed position of the pull rope on the release rod 21 according to the setting position of the handle, so that the single release rod 21 can be used to simultaneously meet the unlocking function of left-hand drive cars and right-hand drive cars, and the technicians do not need to make other adjustments to the double-pull hood lock device 100 for left-hand drive cars and right-hand drive cars, which greatly reduces the development cost of changing a left-hand drive car to a right-hand drive version or a right-hand drive car to a left-hand drive version, and can also save the material cost of preparing different double-pull hood lock devices 100 for left-hand drive and right-hand drive cars.

[0067] It can be understood that when the first pulling portion 211 and the second pulling portion 212 are in symmetrical positions relative to the rotation axis O of the release lever 21, it can be ensured that the operating stroke of the double-pull front hood lock device 100 of the present invention is the same in left-hand drive vehicles and right-hand drive vehicles, thereby improving the user experience.

[0068] Specifically, Figure 1 and Figure 2 As shown, in one embodiment of the present invention, a locking opening 311 is provided on the bottom plate 30 and is open to the outside of the double-pull front hood lock device 100 along the third direction P. The ratchet 13 includes a ratchet locking portion, and is constructed so that the ratchet locking portion closes the locking opening 311 when in a fully locked state and a half-locked state, so that the lock buckle 200 is locked in the locking opening 311, and opens the locking opening 311 when in a fully open state, so that the lock buckle 200 can be moved out of the locking opening 311.

[0069] That is, when the ratchet 13 is in the fully locked state or the half locked state, the locking opening 311 can be closed by the ratchet locking part, so that the lock buckle 200 is locked in the locking opening 311, preventing the lock buckle 200 from coming out of the locking opening 311, thereby ensuring effective locking. When the ratchet 13 is in the fully opened state, the locking opening 311 is opened, so that the lock buckle 200 can be moved out of the locking opening 311, thereby realizing the unlocking function.

[0070] like Figure 2 As shown, in one embodiment of the present invention, the pawl 11 is constructed to be coaxial with the release rod 21 and to rotate freely relative to it; the rotation axis of the connecting rod 23 is arranged on the release rod 21, and is constructed so that when the first matching portion 231 of the connecting rod abuts against the pawl abutting portion 111, the relative angle between the pawl 11 and the release rod 21 is different than when the second matching portion 232 of the connecting rod abuts against the pawl abutting portion 111.

[0071] It is understandable that, since the rotation axis O of the pawl 11 and the release lever 21 is the same rotation axis O, when the connecting rod 23 is fixed to the release lever 21 , it can only abut against the pawl abutting portion 111 at the same position.

[0072] Therefore, in the double-pull front hood lock device 100 of the present invention, the rotation axis of the connecting rod 23 is arranged on the release rod 21, and is constructed so that when the first matching portion 231 of the connecting rod abuts the pawl abutting portion 111, the relative angle between the connecting rod 23 and the release rod 21 is different from that when the second matching portion 232 of the connecting rod abuts the pawl abutting portion 111, the connecting rod 23 can be ensured to be able to rotate relative to the release rod 21, so that in the fully locked state or the half-locked state, the first matching portion 231 of the connecting rod or the second matching portion 232 of the connecting rod abuts the pawl abutting portion 111 respectively to push the pawl 11 to rotate.

[0073] Specifically, FIG. 9A to FIG. 9J As shown, in one embodiment of the present invention, in the fully locked state, the release lever 21 rotates from the initial position along the first rotation direction M, and drives the connecting rod 23 to rotate together, and the first matching portion 231 of the connecting rod is opposite to the pawl abutting portion 111 in the first rotation direction M, so that the first matching portion 231 of the connecting rod abuts against the pawl abutting portion 111, pushing the pawl 11 to be in a semi-locked state with the ratchet wheel 13;

[0074] In the semi-locked state, the release rod 21 rotates from the initial position along the first rotation direction M, and drives the connecting rod 23 to rotate together. The second matching portion 232 of the connecting rod is opposite to the pawl abutment portion 111 in the first rotation direction M, so that the second matching portion 232 of the connecting rod abuts against the pawl abutment portion 111, pushing the pawl 11 to be in a fully open state with the ratchet 13.

[0075] That is, in the fully locked state, during the process of the release lever 21 driving the connecting rod 23 to rotate, the first matching portion 231 of the connecting rod can be opposite to the pawl abutting portion 111 in the first rotation direction M, so that the first matching portion 231 of the connecting rod can move to abut against the pawl abutting portion 111 under the drive of the release lever 21, thereby pushing the pawl 11 to a semi-locked state with the ratchet 13. After pushing the pawl 11 to a semi-locked state with the ratchet 13, the release lever 21 and the connecting rod 23 are both restored to the initial position.

[0076] In the semi-locked state, during the process of the release rod 21 driving the connecting rod 23 to rotate, the second matching portion 232 of the connecting rod can be relative to the pawl abutment portion 111 in the first rotation direction M, so that the second matching portion 232 of the connecting rod can move to abut against the pawl abutment portion 111 under the drive of the release rod 21, thereby pushing the pawl 11 to be in a fully open state with the ratchet 13.

[0077] It is understandable that if Fig.9D and Figure 9H As shown, in the fully locked state, the release rod 21 rotates from the initial position along the first rotation direction M and drives the connecting rod 23 to rotate together, and in the half-locked state, the release rod 21 rotates from the initial position along the first rotation direction M and drives the connecting rod 23 to rotate together. In at least one of the two processes, the connecting rod 23 rotates relative to the release rod 21, so that when the first matching portion 231 of the connecting rod abuts against the pawl abutting portion 111, the relative angle between the connecting rod 23 and the release rod 21 is different than when the second matching portion 232 of the connecting rod abuts against the pawl abutting portion 111. Therefore, in the two unlocking processes, the first matching portion 231 of the connecting rod or the second matching portion 232 of the connecting rod is respectively made opposite to the pawl abutting portion 111, so as to utilize the first matching portion 231 of the connecting rod or the second matching portion 232 of the connecting rod to abut against the pawl abutting portion 111 and push the pawl 11 to rotate.

[0078] Of course, if Fig. 9A , Fig.9D and Figure 9H As shown, in this embodiment, in the fully locked state, the release rod 21 rotates from the initial position along the first rotation direction M and drives the connecting rod 23 to rotate together, and in the half-locked state, the release rod 21 rotates from the initial position along the first rotation direction M and drives the connecting rod 23 to rotate together. In these two processes, the connecting rod 23 rotates relative to the release rod 21, but the rotation angles are different.

[0079] Further, such as Figure 3 As shown, in one embodiment of the present invention, the second matching portion 232 of the connecting rod is configured to protrude in the first rotation direction M relative to the first matching portion 231 of the connecting rod;

[0080] The pawl abutment portion 111 is constructed to abut against the first matching portion 231 of the connecting rod, and to fit against the side of the second matching portion 232 of the connecting rod during the rotation of the first matching portion 231 of the connecting rod, so as to limit the rotation of the connecting rod 23 and maintain abutment with the first matching portion 231 of the connecting rod.

[0081] Since the second matching portion 232 of the connecting rod protrudes in the first rotation direction M relative to the first matching portion 231 of the connecting rod, in the fully locked state, when the release rod 21 drives the connecting rod 23 to rotate, the pawl abutment portion 111 not only abuts against the first matching portion 231 of the connecting rod and is controlled by the rotation of the first matching portion 231 of the connecting rod, but also fits against the side of the second matching portion 232 of the connecting rod. In this way, the side of the second matching portion 232 of the connecting rod can limit the rotation of the connecting rod 23, so that the pawl abutment portion 111 maintains an abutment state with the first matching portion 231 of the connecting rod until the pawl 11 moves to a semi-locked state.

[0082] It is understandable that if Figure 3 As shown, the first matching portion 231 of the connecting rod and the second matching portion 232 of the connecting rod can be Figure 3 The stepped shape in the figure can also be other shapes as long as the above requirements are met.

[0083] like Fig. 9A , Fig.9E and Fig.9I As shown, in one embodiment of the present invention, the rotation axis of the pawl 11 is arranged on the base plate 30, and is constructed to be controlled by an external force to rotate and switch between a fully locked pawl position in a fully locked state, a semi-locked pawl position in a semi-locked state, and a fully open pawl position in a fully open state, and the fully locked pawl position, the semi-locked pawl position, and the fully open pawl position are successively away from the initial position of the connecting rod 23 in the first rotation direction M.

[0084] That is, in the fully locked state, when the release lever rotates from the initial position along the first rotation direction M, the connecting rod 23 is driven to rotate from the initial position, and the connecting rod first matching portion 231 of the connecting rod 23 can abut against the pawl abutting portion 111 to push the pawl 11 from the fully locked pawl position to the semi-locked pawl position, so that the pawl 11 and the ratchet wheel 13 are switched to the semi-locked state. After switching to the semi-locked state, the release lever 21 and the connecting rod 23 are both restored to the initial position.

[0085] Then, in the semi-locked state, when the release lever rotates again from the initial position along the first rotation direction M, the connecting rod 23 is driven to rotate from the initial position again. At this time, the connecting rod second matching portion 232 of the connecting rod 23 abuts against the pawl abutting portion 111 to push the pawl 11 from the semi-locked pawl position to the fully open pawl position, so that the pawl 11 and the ratchet wheel 13 are switched to the fully open state. That is, in the above two unlocking processes, the connecting rod always pushes the pawl 11 to rotate in the same direction, that is, the first rotation direction M, but the connecting rod pushes the pawl abutting portion 111 at different locations in the two unlocking processes.

[0086] Since the fully locked pawl position, the half locked pawl position and the fully open pawl position are successively away from the initial position of the connecting rod 23 in the first rotation direction M, and the second matching portion 232 of the connecting rod protrudes relative to the first matching portion 231 of the connecting rod in the first rotation direction M, it can be ensured that in the first stage of the unlocking process, when the release rod 21 is pulled to rotate the preset angle, the first matching portion 231 of the connecting rod can only push the pawl 11 from the fully locked pawl position to the half locked pawl position, and cannot continue to push it to the fully open pawl position, thereby avoiding the direct switch to the fully open state in the first stage of the unlocking process. When the double-pull bonnet lock device 100 of the present invention is applied to the front bonnet of a car, the user cannot directly unlock the front bonnet by pulling the handle once, thereby ensuring safety; and in the second unlocking process, when the release rod 21 is pulled again to rotate the preset angle, since the second matching portion 232 of the connecting rod is more protruding in the first rotation direction M than the first matching portion 231 of the connecting rod, the second matching portion 232 of the connecting rod can push the pawl 11 from the half-locked pawl position to the fully-opened pawl position, thereby realizing the unlocking of the double-pull bonnet lock device 100.

[0087] It is understandable that the protruding length of the second matching portion 232 of the connecting rod relative to the first matching portion 231 of the connecting rod can be set according to the corresponding rotation strokes of the fully locked pawl position, the half-locked pawl position, and the fully open pawl position to meet the above requirements.

[0088] like Figure 3 As shown, in one embodiment of the present invention, the second matching portion 232 of the connecting rod is constructed so that when in the initial position, the front end protrudes along the first rotation direction M relative to the abutment surface of the pawl abutment portion 111 when in the fully locked pawl position.

[0089] That is Fig. 9A As shown, since the front end of the second matching portion 232 of the connecting rod in the initial position protrudes along the first rotation direction M relative to the abutment surface of the pawl abutment portion 111 when it is in the fully locked pawl position, it can be ensured that in the fully locked state, when the release rod 21 drives the connecting rod 23 to move, the front end of the second matching portion 232 of the connecting rod is located at the front side of the abutment surface of the pawl abutment portion 111 in the first rotation direction M, and can only be opposed by the abutment surface of the first matching portion 231 of the connecting rod and the pawl abutment portion 111, and the front end of the second matching portion 232 of the connecting rod cannot be opposite to the abutment surface of the pawl abutment portion 111, thereby ensuring that in the first stage of unlocking, the first matching portion 231 of the connecting rod is used to abut against the pawl abutment portion 111 and push the pawl 11 to rotate, avoiding the situation where the front end of the second matching portion 232 of the connecting rod abuts against the pawl abutment portion 111, thereby preventing the situation where the connecting rod directly switches to the fully open state during the first stage of unlocking.

[0090] It can be understood that whether the second matching portion 232 of the connecting rod needs to be arranged on the side of the rotation axis O of the first matching portion 231 of the connecting rod adjacent to the release rod 21, or on the side of the rotation axis O of the first matching portion 231 of the connecting rod away from the release rod 21, needs to be determined according to the position of the pawl abutment portion 111 in the fully locked pawl position and the pawl abutment portion 111 in the half-locked pawl position.

[0091] like Figure 3 As shown, in one embodiment of the present invention, the second matching portion 232 of the connecting rod is arranged on the side of the rotation axis O of the first matching portion 231 of the connecting rod adjacent to the release rod 21; and in another embodiment of the present invention, the second matching portion 232 of the connecting rod can also be arranged on the side of the first matching portion 231 of the connecting rod away from the rotation axis O of the release rod 21.

[0092] It is understandable that if Figure 1 As shown, in one embodiment of the present invention, when the second matching portion 232 of the connecting rod is arranged on the side of the rotation axis O of the first matching portion 231 of the connecting rod adjacent to the release rod 21, the unlocking mechanism 20 also includes a connecting rod reset elastic member 24, and the connecting rod reset elastic member 24 is constructed to drive the connecting rod 23 to rotate along a second rotation direction N under the action of its own elastic force, and the second rotation direction N is a direction opposite to the first rotation direction M.

[0093] By providing the connecting rod reset elastic member 24, it can be achieved that in the fully locked state, during the process of the release rod 21 driving the connecting rod 23 to rotate together, the connecting rod 23 is rotated by the connecting rod reset elastic member 24 to the second rotation direction N by the first angle r1, so that the first matching portion 231 of the connecting rod is opposite to the pawl abutment portion 111 in the first rotation direction M, and the first matching portion 231 of the connecting rod is abutted against the pawl abutment portion 111 and pushes the pawl 11 to rotate; in the half-locked state, during the process of the release rod 21 driving the connecting rod 23 to rotate together, the connecting rod 23 is rotated by the connecting rod reset elastic member 24 to the second rotation direction N by the second angle r2, so that the second matching portion 232 of the connecting rod is opposite to the pawl abutment portion 111 in the first rotation direction M, and the second matching portion 232 of the connecting rod is abutted against the pawl abutment portion 111 and pushes the pawl 11 to rotate; it can also be achieved that after the connecting rod 23 is separated from the pawl 11, it can be restored to the initial position.

[0094] It can be understood that, as mentioned above, since during the first unlocking process, the side surface of the second matching portion 232 of the connecting rod can limit the rotation of the connecting rod 23, so that the pawl abutment portion 111 remains in abutment with the first matching portion 231 of the connecting rod, therefore, during the first unlocking process, the connecting rod 23 is rotated in the second rotation direction N by the connecting rod reset elastic member 24 by the first angle r1 which is related to the side setting position of the second matching portion 232 of the connecting rod.

[0095] Further, such as Fig. 9A As shown, in one embodiment of the present invention, a first limiting portion 32 is provided on the base plate 30, and the first limiting portion 32 is constructed to limit the rotation angle of the connecting rod 23 in the second rotation direction N when the connecting rod is in the initial position, so as to ensure that in the fully locked state, the release rod 21 rotates from the initial position along the first rotation direction M, and drives the connecting rod 23 to rotate together, and the first matching portion 231 of the connecting rod is opposite to the pawl abutment portion 111 in the first rotation direction M.

[0096] By setting the first limiting portion 32 at a specific position of the base plate 30, the first limiting portion 32 can limit the rotation angle of the connecting rod 23 in the second rotation direction N when the connecting rod is in the initial position, ensuring that the first matching portion 231 of the connecting rod and the pawl abutment portion 111 are opposite to each other in the first rotation direction M, thereby preventing the connecting rod 23 from being rotated too much in the second rotation direction N by the connecting rod reset elastic member 24, resulting in the first matching portion 231 of the connecting rod and the pawl abutment portion 111 being unable to be opposite to each other in the first rotation direction M.

[0097] Further, such as Fig. 9A As shown, a connecting rod limiting portion 233 is provided on the connecting rod 23, and the connecting rod limiting portion 233 is configured to abut against the first limiting portion 32 when the connecting rod is in the initial position, so as to limit the rotation angle of the connecting rod 23 in the second rotation direction N. By providing the connecting rod limiting portion 233 on the connecting rod 23, the connecting rod limiting portion 233 can abut against the first limiting portion 32 when the connecting rod is in the initial position, so as to limit the rotation angle of the connecting rod 23 in the second rotation direction N, and ensure that the connecting rod first matching portion 231 and the pawl abutting portion 111 are opposite to each other in the first rotation direction M.

[0098] Understandably, in order to Fig. 9A The connecting rod limiting portion 233 is arranged on the side of the connecting rod 23 away from the first matching portion 231 and the second matching portion 232 of the connecting rod; in another embodiment of the present invention, the connecting rod limiting portion 233 can be determined according to the specific setting position and angle limitation requirements of the first limiting portion 32, and is not limited here.

[0099] like Figure 9G As shown, in one embodiment of the present invention, a second limiting portion 213 is provided on the release rod 21, and the second limiting portion 213 is constructed to limit the rotation angle of the connecting rod 23 in the second rotation direction N, so as to ensure that in the semi-locked state, the release rod 21 rotates from the initial position along the first rotation direction M, and drives the connecting rod 23 to rotate together, and the second matching portion 232 of the connecting rod is opposite to the pawl abutment portion 111 in the first rotation direction M.

[0100] By setting a second limiting portion 213 at a specific position of the release rod 21, the second limiting portion 213 can limit the rotation angle of the connecting rod 23 in the second rotation direction N to ensure that in the semi-locked state, the second matching portion 232 of the connecting rod and the pawl abutment portion 111 are opposite to each other in the first rotation direction M, thereby preventing the connecting rod 23 from being rotated too much in the second rotation direction N by the connecting rod reset elastic member 24, resulting in the second matching portion 232 of the connecting rod and the pawl abutment portion 111 being unable to be opposite to each other in the first rotation direction M.

[0101] like Figure 9G As shown, in one embodiment of the present invention, the second limiting portion 213 is configured to abut against the side of the first matching portion 231 of the connecting rod to limit the rotation angle of the connecting rod 23 in the second rotation direction N. Since the second limiting portion 213 abuts against the side of the first matching portion 231 of the connecting rod, it can not only limit the rotation angle of the connecting rod 23 in the second rotation direction N, but also will not limit the connecting rod 23 from rotating in the first rotation direction M as a whole along with the release rod 21, so as to ensure that the second matching portion 232 of the connecting rod can push the pawl 11 from the half-locked pawl position to the fully-opened pawl position, so as to realize the unlocking of the double-pull front hood lock device 100.

[0102] It can be understood that, since the rotation axis of the connecting rod 23 is arranged on the release rod 21, Figure 1 As shown, in one embodiment of the present invention, one end of the connecting rod reset elastic member 24 cooperates with the connecting rod 23, and the other end cooperates with the release rod 21, so that the connecting rod reset elastic member 24 can drive the connecting rod 23 to rotate along the second rotation direction N under the action of its own elastic force.

[0103] like Figure 1 As shown, in one embodiment of the present invention, the unlocking mechanism 20 further includes a release lever reset elastic member 22, and the release lever reset elastic member 22 is configured to drive the release lever 21 to rotate along a second rotation direction N under the action of its own elastic force, and the second rotation direction N is a direction opposite to the first rotation direction M. By providing the release lever reset elastic member 22, it can be ensured that after the pulling force of the traction rope is removed, the release lever reset elastic member 22 can drive the release lever 21 to rotate along the second rotation direction N under the action of its own elastic force, so that the release lever 21 returns to the initial position.

[0104] It can be understood that since the rotation axis of the release rod 21 is set on the base plate 30, one end of the release rod reset elastic member 22 cooperates with the release rod 21, and the other end cooperates with the base plate 30, so as to ensure that the release rod reset elastic member 22 can drive the release rod 21 to rotate along the second rotation direction N under the action of its own elastic force, thereby restoring the release rod 21 to its initial position.

[0105] It is understandable that, since the pawl 11 rotates coaxially with the release rod 21 , the pawl reset elastic member 12 and the release rod reset elastic member 22 can adopt the same set of reset elastic members matched with the bottom plate 30 to save related parts.

[0106] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the double-pull front hood lock device 100 of the present invention also includes a pop-up mechanism 40, the pop-up mechanism 40 includes a pop-up rod 41 and a pop-up elastic member 42, a lifting portion 411 is provided on the pop-up rod 41, and the pop-up rod 41 is constructed to be controlled by the elastic force of the pop-up elastic member 42, and the lock buckle 200 is lifted along the third direction P by the lifting portion 411.

[0107] That is, during the use of the double-pull front hood lock device 100 of the present invention, after the double-pull front hood lock device 100 of the present invention is unlocked, the lock buckle 200 on the front hood moves out from the locking port 311, and the pop-up rod 41 can be controlled by the elastic force of the pop-up elastic member 42, and the lock buckle 200 is lifted by the lifting portion 411, so that a gap appears between the front hood and the front cabin, which is convenient for the user to lift the front hood upward. When the user puts down the front hood and presses the front hood downward, the double-pull front hood lock device 100 of the present invention switches from a semi-locked state to a semi-locked state, and then switches to a fully locked state, and the lifting portion of the pop-up rod 41 continuously moves downward under the downward pressure of the user.

[0108] It is understandable that any one of the aforementioned ratchet reset elastic member 14, pawl reset elastic member 12, release rod reset elastic member 22, connecting rod reset elastic member 24 and pop-up elastic member 42 can adopt a spring such as a torsion spring, or other forms of elastic members, which are not limited here.

[0109] like Figure 1 As shown, in one embodiment of the present invention, the double-pull front hatch lock device 100 of the present invention further includes a detection sensor 50, which is configured to cooperate with the ratchet 13 to output a corresponding signal when the ratchet 13 is out of the fully locked position.

[0110] Specifically, Figure 1 As shown, in this embodiment, the detection sensor 50 includes a micro switch 51, which contacts the micro switch 51 when the ratchet 13 is in a fully locked state. When the ratchet 13 is out of the fully locked state and disengaged from the micro switch 51, the micro switch 51 can output a corresponding signal to the outside, so that the device or user where the double-pull front hatch lock device 100 is located can judge whether the double-pull front hatch lock device 100 is in a fully locked state. In other embodiments of the present invention, the specific form and working state of the detection sensor 50 can be set as needed, and are not limited here.

[0111] In summary, if Fig. 8AAs shown, before the double-pull front hatch lock device 100 of the present invention is locked, the pawl 11 and the ratchet wheel 13 are in a fully open state. Figure 8B As shown, in the first locking process of the double-pull front hatch lock device 100 of the present invention, the lock buckle 200 can push the ratchet 13 to rotate along the second rotation direction N, thereby driving the ratchet pawl engaging portion 112 to move to abut against the ratchet first matching portion 131 to enter a semi-locked state, while pressing down the pop-up rod 41. Figure 8C As shown, in the second locking process of the double-pull front hood lock device 100 of the present invention, the lock catch 200 can continue to push the ratchet 13 to rotate along the second rotation direction N, driving the pawl clamping portion 112 to move to abut against the ratchet second matching portion 132 to enter the full lock state, thereby achieving the locking of the lock catch 200. At the same time, the pop-up rod 41 is further pressed down. It can be understood that in the locking process of the double-pull front hood lock device 100 of the present invention, the release rod 21 and the connecting rod 23 do not move at all.

[0112] like Fig. 9A As shown, before the double-pull front bonnet lock device 100 of the present invention is unlocked, the pawl 11 and the ratchet 13 are in a fully locked state, thereby locking the lock buckle 200 to the double-pull front bonnet lock device 100; the release rod 21 and the connecting rod 23 are both in their initial positions, and the connecting rod limiting portion 233 abuts against the first limiting portion 32 on the bottom plate 30.

[0113] like Fig. 9B As shown, when the user needs to unlock the double-pull front hood lock device 100 of the present invention, the user directly or indirectly pulls the release rod 21, so that the release rod 21 can rotate from the initial position along the first rotation direction M, driving the connecting rod 23 to rotate from the initial position. At this time, the connecting rod 23 is controlled by the restoring elasticity of the connecting rod to rotate a certain angle along the second rotation direction N until the connecting rod 23 is rotated to the second rotation direction N. Fig. 9C As shown, the second matching portion 232 of the connecting rod is in contact with the pawl abutting portion 111 .

[0114] At this time, if Fig.9D As shown, the release rod 21 can continue to drive the connecting rod 23 to rotate along the first rotation direction M as a whole, and the connecting rod first matching portion 231 of the connecting rod 23 can abut against the pawl abutting portion 111 to push the pawl clamping portion 112 and the ratchet second matching portion 132 to separate. Fig.9E As shown, the ratchet 13 rotates in the first direction under the action of the ratchet reset elastic member 14, the ratchet first matching portion 131 abuts against the pawl clamping portion 112, and the pawl 11 and the ratchet 13 are in a semi-locked state. After switching to the semi-locked state, the user releases the release lever 21, as shown in FIG. Fig.9F As shown, the release rod 21 and the connecting rod 23 are both restored to their initial positions.

[0115] Then, if Figure 9GAs shown in FIG. 1 , in the semi-locked state, the user pulls the release lever 21 again, so that the release lever 21 can rotate again from the initial position along the first rotation direction M, and drives the connecting rod 23 to rotate from the initial position again. At this time, the side surface of the first matching portion 231 of the connecting rod abuts against the second limiting portion 213 on the release lever 21, and then as shown in FIG. Figure 9H As shown, the connecting rod 23 is driven by the release rod 21, so that the second matching portion 232 of the connecting rod abuts against the pawl abutting portion 111. Further, as shown in FIG. Fig.9I As shown, the second matching portion 232 of the connecting rod pushes the pawl engaging portion 112 to separate from the ratchet first matching portion 131, and the pawl 11 and the ratchet 13 are in a fully open state, thereby releasing the lock 200. Figure 9J As shown, in the fully open state, the user releases the release rod 21 again, and the release rod 21 and the connecting rod 23 are restored to the initial position again to prepare for the next unlocking.

[0116] During the entire unlocking process, the pop-up rod 41 is always controlled by the elastic force of the pop-up elastic member 42 , and the lock buckle 200 is lifted by the lifting portion 411 .

[0117] When the double-pull hood lock device 100 is applied to a car, it is disposed in the front cabin of the car and is configured to be locked with the lock catch 200 on the hood in a fully locked state or a half-locked state, and to release the lock catch 200 on the hood in a fully open state.

[0118] When the front hood needs to be unlocked, the user only needs to pull the handle corresponding to the double-pull front hood lock device 100 of the present invention twice to unlock the front hood of the car; the user does not need to unlock the double-pull front hood lock device 100 in the car and then unlock the safety hook outside the car to open the front hood, which provides a convenient and fast operation experience for the user. When the user puts down the front hood and presses the front hood downward, the double-pull front hood lock device 100 can be switched from a semi-locked state to a semi-locked state, and then to a fully locked state, so that the lock buckle 200 on the front hood is locked in the locking port 311 of the double-pull front hood lock device 100 of the present invention to lock the front hood of the car.

[0119] Furthermore, in one embodiment of the present invention, a handle is provided on the left or right side of the car, and the handle is constructed to be transmission-connected to the pulling rope of the double-pull front hood lock device 100, and when the handle of the car is provided on the left side of the car, the pulling rope is fixed to one of the first pulling part 211 and the second pulling part 212, and when the handle of the car is provided on the right side of the car, the pulling rope is fixed to the other of the first pulling part 211 and the second pulling part 212.

[0120] It is understandable that since cars are divided into left-hand drive and right-hand drive, that is, the driver's seat is arranged on the left side or the right side of the car body, in order to facilitate the driver to unlock the front hood, the handle of the front hood is usually arranged near the outside of the driver.

[0121] Thus, when the handle is in Figure 1 When the handle is on the right side, the pulling rope can be fixed to the first pulling portion 211. In this way, when the user pulls the handle and then pulls the pulling rope to move to the right, the release lever 21 can be driven to rotate along the first rotation direction M, thereby unlocking the double-pull front hatch lock device 100 of the present invention. Figure 1 When the left side is in the middle, the pulling rope can be fixed to the second pulling portion 212. In this way, when the user pulls the handle and then pulls the pulling rope to move to the left, the release rod 21 can also be driven to rotate along the first rotation direction M, thereby unlocking the double-pull front hatch lock device 100 of the present invention.

[0122] It can be seen that no matter the car is left-hand drive or right-hand drive, there is no need to adjust the setting direction of the double-pull front hood lock device 100, nor is there a need to prepare two sets of double-pull front hood lock devices 100 that are mirror images of each other for left-hand drive cars and right-hand drive cars. In addition, when the double-pull front hood lock device 100 of the present invention is applied to left-hand drive cars and right-hand drive cars, the same arrangement position and direction can be maintained, and the designer only needs to adjust the fixed position of the pull rope on the release rod 21 according to the setting position of the handle, so that the single release rod 21 can be used to meet the unlocking function of left-hand drive cars and right-hand drive cars at the same time, and the technicians do not need to make other adjustments to the double-pull front hood lock device 100 for left-hand drive cars and right-hand drive cars, which greatly reduces the development cost of changing a left-hand drive car to a right-hand drive version or a right-hand drive car to a left-hand drive version, and can also save the material cost of preparing different double-pull front hood lock devices 100 for left-hand drive and right-hand drive cars respectively.

[0123] It can be understood that when the first pulling portion 211 and the second pulling portion 212 are in symmetrical positions relative to the rotation axis O of the release lever, it can be ensured that the operating stroke of the double-pull front hood lock device 100 of the present invention is the same in left-hand drive vehicles and right-hand drive vehicles, thereby improving the user experience.

[0124] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-pull front hatch lock device, characterized in that: include: Bottom plate (30); A locking mechanism (10), the locking mechanism (10) comprising a pawl (11) and a ratchet (13), the pawl (11) and the ratchet (13) having a fully open state, a half-locked state and a fully locked state, and the pawl (11) is provided with a pawl abutment portion (111); An unlocking mechanism (20), the unlocking mechanism (20) comprising a release rod (21) and a connecting rod (23), the rotation axis of the release rod (21) being arranged on the bottom plate (30), the connecting rod (23) being arranged on the release rod (21) and having a first connecting rod matching portion (231) and a second connecting rod matching portion (232); The release rod (21) is constructed to drive the connecting rod (23) to rotate from the initial position when it is controlled by an external force to rotate along the first rotation direction from the initial position, wherein, in the fully locked state, the first matching portion (231) of the connecting rod is driven to abut against the pawl abutment portion (111) to push the pawl (11) to a semi-locked state with the ratchet (13); in the semi-locked state, the second matching portion (232) of the connecting rod is driven to abut against the pawl abutment portion (111) to push the pawl (11) to a fully open state with the ratchet (13).

2. The double-pull front hatch lock device according to claim 1, characterized in that: The connecting rod (23) is eccentrically arranged on one side of the release rod (21), and a first pulling portion (211) is arranged on the side of the release rod (21) where the connecting rod (23) is arranged, and a second pulling portion (212) is arranged on the side where the connecting rod (23) is not arranged.

3. The double-pull front hatch lock device according to claim 1, characterized in that: The release rod (21) is configured to be coaxial with the ratchet pawl (11) and to be relatively free to rotate; The rotation axis of the connecting rod (23) is arranged on the release rod (21) and can rotate freely. It is constructed so that when the first matching portion (231) of the connecting rod abuts the pawl abutment portion (111), the relative angle between the connecting rod and the release rod (21) is different from that when the second matching portion (232) of the connecting rod abuts the pawl abutment portion (111).

4. The double-pull front hatch lock device according to claim 3, characterized in that: In the fully locked state, the release rod (21) rotates from the initial position along the first rotation direction, and drives the connecting rod (23) to rotate together, and the first matching portion (231) of the connecting rod and the ratchet pawl abutting portion (111) are relative to each other in the first rotation direction, so that the first matching portion (231) of the connecting rod abuts against the ratchet pawl abutting portion (111), pushing the ratchet pawl (11) to be in a semi-locked state with the ratchet wheel (13); In the semi-locked state, the release rod (21) rotates from the initial position along the first rotation direction and drives the connecting rod (23) to rotate together. The second matching portion (232) of the connecting rod is relative to the pawl abutment portion (111) in the first rotation direction, so that the second matching portion (232) of the connecting rod abuts against the pawl abutment portion (111), pushing the pawl (11) to be in a fully open state with the ratchet (13).

5. The double-pull front hatch lock device according to claim 4, characterized in that: The second matching portion (232) of the connecting rod is configured to protrude in a first rotation direction relative to the first matching portion (231) of the connecting rod.

6. The double-pull front hatch lock device according to claim 4, characterized in that: The unlocking mechanism (20) further comprises a connecting rod reset elastic member (24), wherein the connecting rod reset elastic member (24) is configured to drive the connecting rod (23) to rotate along a second rotation direction under the action of its own elastic force, wherein the second rotation direction is opposite to the first rotation direction.

7. The double-pull front hatch lock device according to claim 6, characterized in that: A first limiting portion (32) is provided on the bottom plate (30), and the first limiting portion (32) is constructed to limit the rotation angle of the connecting rod (23) in the second rotation direction when the connecting rod is in the initial position, so as to ensure that in the fully locked state, the release rod (21) rotates from the initial position along the first rotation direction and drives the connecting rod (23) to rotate together, and the first matching portion (231) of the connecting rod is opposite to the ratchet abutment portion (111) in the first rotation direction.

8. The double-pull front hatch lock device according to claim 7, characterized in that: The connecting rod (23) is provided with a connecting rod limiting portion (233), and the connecting rod limiting portion (233) is configured to abut against the first limiting portion (32) when the connecting rod is in an initial position, so as to limit the rotation angle of the connecting rod (23) in the second rotation direction.

9. The double-pull front hatch lock device according to claim 6, characterized in that: The release rod (21) is provided with a second limiting portion (213), and the second limiting portion (213) is constructed to limit the rotation angle of the connecting rod (23) in the second rotation direction, so as to ensure that in the semi-locked state, the release rod (21) rotates from the initial position along the first rotation direction and drives the connecting rod (23) to rotate together, and the second matching portion (232) of the connecting rod is opposite to the ratchet abutment portion (111) in the first rotation direction.

10. The double-pull front hatch lock device according to claim 9, characterized in that: The second limiting portion (213) is configured to abut against a side surface of the first matching portion (231) of the connecting rod to limit the rotation angle of the connecting rod (23) in the second rotation direction.

11. The double-pull front hatch lock device according to any one of claims 3 to 10, characterized in that: The unlocking mechanism (20) further comprises a release rod reset elastic member (22), wherein the release rod reset elastic member (22) is configured to drive the release rod (21) to rotate along a second rotation direction under the action of its own elastic force, wherein the second rotation direction is opposite to the first rotation direction.

12. The double-pull front hatch lock device according to claim 1, characterized in that: The invention also comprises a pop-up mechanism (40), wherein the pop-up mechanism (40) comprises a pop-up rod (41) and a pop-up elastic member (42), wherein a lifting portion (411) is provided on the pop-up rod (41), and the pop-up rod (41) is constructed to be controlled by the elastic force of the pop-up elastic member (42), and to lift the lock buckle (200) by means of the lifting portion (411).

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