Device for eliminating opening interference of four-bar linkage hinge hood and vehicle
The mechanical linkage design of the lifting component and the pulling component solves the interference problem caused by gravity sinking during the opening process of the four-link hinged hood, achieves stable opening of the hood and avoids paint wear, reduces costs and improves reliability.
Patent Information
- Application Number
- CN202510923753.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2025-09-19
AI Technical Summary
During the opening process of the existing four-link hinged hood, the rear of the hood sinks due to gravity, causing interference between the hood and the fender, resulting in paint wear and affecting the opening and closing function.
The mechanical linkage design of the lifting component and the pulling component is adopted. Through the engagement and disengagement of the active claw and the driven claw, combined with the elastic energy storage of the reset torsion spring, an immediate upward support force is provided to prevent the hood from sinking.
It effectively prevents the hood from contacting or rubbing against the fender, avoids paint wear, ensures the normal opening and closing function of the hood, reduces costs and improves reliability.
Smart Images
Figure CN120664016A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of vehicle hood assembly components, and in particular to a device for eliminating opening interference of a four-link hinge hood and a vehicle. Background Art
[0002] In recent years, the opening mechanism of automobile engine hoods (hereinafter referred to as "hoods") has generally adopted a four-bar hinge structure to achieve smooth and controllable opening and closing motion. Through the coordinated action of multiple links, the four-bar mechanism can provide a stable motion trajectory and meet the mechanical requirements of the hood during the opening and closing process. However, existing four-bar technology still has certain design flaws during the hood opening process. In particular, during the initial stage of unlocking the hood lock, due to the influence of the hood's own gravity and the four-bar arrangement, the rear of the hood will experience downward displacement (rocking), causing the hood to be lower than the height of the adjacent fender at the moment of opening, which may cause interference between the hood and the fender.
[0003] Specifically, after the hood lock is unlocked, the front of the hood springs upward due to spring force. However, due to the kinematic characteristics of the four-bar linkage, the rear of the hood briefly sinks due to gravity during the initial stage, lowering the overall height of the hood. This downward movement can cause the edge of the hood to contact or rub against the upper edge of the fender. Over time, this can cause paint wear and even affect the hood's proper opening and closing function. Furthermore, on some models, this issue is more pronounced due to the narrow clearance between the hood and fender, impacting the user experience and increasing after-sales repair costs. Summary of the Invention
[0004] The present application provides a device and vehicle for eliminating interference in the opening of a four-link hinged hood, which can solve the technical problem in the prior art that the combination mechanism of a four-link plus a front hood spring cannot provide an upward support force to the rear end of the hood. In the initial stage of opening the hood, the rear end of the hood will sink briefly due to the action of gravity, causing contact or friction between the hood and the fender, which may cause paint wear and even affect the normal opening and closing function of the hood.
[0005] In a first aspect, the present application provides a device for eliminating interference in opening a four-link hinged hood, comprising: A lifting assembly, the lifting assembly includes an active claw and a driven claw for being arranged along the length direction of the vehicle body and capable of self-rotation, the active claw and the driven claw are both provided with a return torsion spring for driving the top of the active claw and the top of the driven claw to rotate toward the rear end of the hood to be opened and closed, one side of the driven claw is provided with a protruding tooth, and the opposite side of the active claw is provided with a matching position for the one-way embedding of the protruding tooth, and when the protruding tooth is disengaged from the matching position under the action of an external force, the protruding tooth rotates to the direction of the hood to be opened and closed under the torsion of the return torsion spring in the driven claw; A pulling assembly includes a short connecting rod, which includes a fixed end for being hinged to the vehicle body, and a moving end for being hinged to the tail end of the hood to be opened and closed, and rising and falling synchronously with the opening and closing action of the hood to be opened and closed. The bottom of the moving end is provided with a support leg for supporting the top of the protruding tooth, and the fixed end is provided with a pull rope connected to the bottom of the active claw, so as to pull the active claw to rotate when the hood to be opened and closed is opened, so as to make the protruding tooth disengage from the mating position.
[0006] In combination with the first aspect, in one embodiment, the pulling assembly also includes a connecting plate and a movable arm, the connecting plate is arranged along the length direction of the vehicle body and fixedly connected to the frame, the lifting assembly is arranged on the inner side wall of the connecting plate, and the movable arm is used to be fixedly connected to the hood to be opened and closed so as to rise and fall synchronously with the hood to be opened and closed, one end of the short connecting rod is hinged to the middle part of the connecting plate, and the other end is hinged to the tail end of the movable arm, wherein the tail end of the movable arm is in the direction of the tail end of the hood to be opened and closed.
[0007] In one embodiment, it is characterized in that: a limiting screw is provided on the connecting plate along the height direction of the vehicle body, the limiting screw includes a nut end and a rod end, and the top surface of the nut end abuts against the bottom surface of the movable arm.
[0008] In one embodiment, the pulling assembly also includes a long connecting rod located on the outside of the movable arm and rising and falling synchronously with the movable arm. One end of the long connecting rod is hinged to the head end of the connecting plate, and the other end is hinged to the tail end of the movable arm, wherein the head end of the connecting plate is in the direction of the head end of the hood to be opened and closed.
[0009] In one embodiment, the active claw includes a first rotating engagement plate and a first rotating shaft that transversely passes through the first rotating engagement plate and the connecting plate. A fixing hook for connecting the pull rope is protruded from the bottom of the first rotating engagement plate.
[0010] In one embodiment, the active claw is provided with a first fixed plate fixedly connected to the connecting plate toward the inner side of the connecting plate, and the reset torsion spring includes a first torsion spring sleeved on the outer periphery of the first rotating shaft and engaged with the first fixed plate, and a first engaging end is protruding from the top of the first fixing plate, the fixed arm of the first torsion spring is engaged with the inner side of the first engaging end, and the torsional wall is bent to hook on the fixed hook.
[0011] In one embodiment, the driven claw includes a second rotating engagement plate and a second rotating shaft that transversely passes through the second rotating engagement plate and the connecting plate. A locking ear is protruded from the top of the second rotating engagement plate.
[0012] In one embodiment, the driven claw is provided with a second fixed plate fixedly connected to the connecting plate on the inner side of the connecting plate, and the reset torsion spring also includes a second torsion spring sleeved on the outer periphery of the second rotating shaft and engaged with the second fixed plate, and a second engaging end is protruding from the bottom of the second fixed plate, the torsion arm of the second torsion spring is engaged with the engaging ear, and the fixed wall is bent to engage with the second engaging end.
[0013] In one embodiment, the first rotating engaging plate is provided with a mating tooth protruding toward one side of the driven claw, and the height difference between the mating tooth and the fixed hook forms a mating position, and the protruding tooth includes an engaging tooth that is in contact with the bottom of the mating tooth in the engaged state and a raised tooth located at the top of the mating tooth, the top surface of the engaging tooth is provided with a downwardly inclined arc surface, the bottom of the mating tooth is provided with a mating surface that is in contact with the downwardly inclined arc surface, and the support leg abuts against the top surface of the raised tooth.
[0014] In a second aspect, an embodiment of the present application provides a vehicle, wherein the inner wall of the vehicle's hood is provided with two sets of the above-mentioned devices for eliminating interference in opening the four-link hinge hood, and the two sets of the above-mentioned devices for eliminating interference in opening the four-link hinge hood are arranged on both sides of the vehicle hood along the width direction of the vehicle body.
[0015] The beneficial effects of the technical solutions provided in the embodiments of the present application include: 1. Through the coordinated action of the lifting assembly (active claw, driven claw, and return torsion spring) and the pulling assembly (short connecting rod, pull rope), during the initial stage of hood opening, the active claw is pulled by the pull rope to rotate, causing the protruding teeth of the driven claw to disengage from the mating position. The return torsion spring then rapidly lifts the supporting leg of the short connecting rod upward, providing immediate upward support for the rear end of the hood to be opened or closed, preventing it from sinking due to gravity and effectively preventing contact or friction between the hood and the fender, thereby avoiding paint wear and structural damage. 2. It adopts a purely mechanical linkage design, which uses the elastic energy storage of the reset torsion spring and the traction of the pull rope to achieve automatic triggering. It does not rely on electric or hydraulic systems, reducing costs and failure rates and improving reliability. 3. When the hoist hood is closed, the protruding teeth of the driven claw can be re-embedded into the matching position of the active claw, so that the lifting component is reset, ensuring that the supporting action can still be triggered normally when it is opened next time, forming a stable circulation mechanism; BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0016] Figure 1A schematic diagram of the structure of a device for eliminating interference in opening a four-link hinged hood provided in an embodiment of the present application; Figure 2 A schematic diagram of the front structure of a lifting assembly in a device for eliminating interference in opening a four-link hinge hood provided in an embodiment of the present application; Figure 3 A schematic diagram of the back structure of a lifting assembly in a device for eliminating interference in opening a four-link hinge hood provided in an embodiment of the present application; Figure 4 A schematic diagram of the jacking-up state of a jacking-up assembly in a device for eliminating interference in opening a four-link hinge hood provided in an embodiment of the present application.
[0017] In the figure: 1. Active claw; 101. First rotating engagement plate; 102. First rotating shaft; 103. Fixed hook; 104. First fixed plate; 105. First engaging end; 106. Matching tooth; 2. Driven claw; 201. Protruding tooth; 2011. Engaging tooth; 2012. Lifting tooth; 202. Second rotating engagement plate; 203. Second rotating shaft; 204. Engaging ear; 205. Second fixed plate; 206. Second engaging end; 3. Reset torsion spring; 301. First torsion spring; 302. Second torsion spring; 4. Short connecting rod; 5. Pull rope; 6. Support leg; 7. Connecting plate; 701. Limit screw; 8. Movable arm; 9. Long connecting rod. DETAILED DESCRIPTION
[0018] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 this application.
[0019] On the first aspect, the embodiment of the present application provides a device for eliminating interference in the opening of a four-link hinged hood, which can solve the problem that the combination mechanism of the four-link plus the front spring of the hood in traditional technology cannot provide an upward support force to the rear end of the hood. In the initial stage of opening the hood, the rear end of the hood will sink briefly due to the action of gravity, causing contact or friction between the hood and the fender, which may cause paint wear and even affect the normal opening and closing function of the hood. Technical problems.
[0020] The device for eliminating the interference of the opening of the four-link hinged hood in the present application includes a lifting assembly and a pulling assembly. The lifting assembly is used to be arranged at the tail end of the hood to be opened and closed, and the internal structure is configured with a rotatable engaging structure. When the hood to be opened and closed is closed, the internal structure of the lifting assembly is locked in an engaged state. After the hood to be opened and closed is opened, the engagement of the lifting assembly is released due to the drive of the hood to be opened and closed, and it rotates a certain angle. After the original engaged part is disengaged, it rotates a certain angle toward the hood to be opened and closed, and becomes a protruding part to lift the tail end of the hood to be opened and closed. The pulling assembly is respectively connected to the hood to be opened and closed and the lifting assembly, and serves as a transmission part for the hood to be opened and closed and the lifting assembly, transmitting the opening and closing torque of the hood to be opened and closed to the lifting assembly, so that the internal structure of the lifting assembly is disengaged.
[0021] Specifically, Figure 1 A schematic diagram of a device structure for eliminating interference in opening a four-link hinge hood provided in an embodiment of the present application. Figure 2 A schematic diagram of the front structure of the lifting assembly in a device for eliminating interference in opening a four-link hinge hood provided in an embodiment of the present application is shown as follows: Figure 1 、 Figure 2 As shown, the lifting assembly includes an active claw 1 and a driven claw 2 which are arranged along the length direction of the vehicle body and can rotate. The active claw 1 and the driven claw 2 are arranged at a certain distance along the width direction of the vehicle body, and both the active claw 1 and the driven claw 2 can rotate along an axis parallel to the width direction of the vehicle body. The driven claw 2 is arranged on the side facing the rear end of the hood to be opened and closed, and the active claw 1 is arranged on the side facing the front end of the hood to be opened and closed. In the initial state, the active claw 1 and the driven claw 2 are engaged with each other.
[0022] A return torsion spring 3 is provided on the inner side of each of the active claw 1 and the driven claw 2 for driving the top of the active claw 1 and the top of the driven claw 2 to rotate toward the tail end of the hood to be opened and closed. In the initial state, the active claw 1 and the driven claw 2 are engaged with each other, and the return torsion spring 3 in the active claw 1 is in a stationary state, which is used to maintain the current posture of the active claw 1. Due to the meshing action, the driven claw 2 is limited by the active claw 1, so that the return torsion spring 3 in the driven claw 2 is in a squeezed state.
[0023] For further information, see Figure 1, a protruding tooth 201 is provided on one side of the driven claw 2, and a matching position for the one-way embedding of the protruding tooth 201 is provided on the opposite side of the active claw 1. Under the limit of the matching position, the protruding tooth 201 in the static state can only be embedded and cannot be disengaged, ensuring the locking posture when engaged. When the protruding tooth 201 is out of the matching position under the action of external force, the protruding tooth 201 rotates to the direction of the hood to be opened and closed under the torsion of the reset torsion spring 3 in the driven claw 2. The separation of the driven claw 2 and the active claw 1 can only rely on the pulling component, which is used to connect with the active claw 1. When the hood to be opened and closed is to be opened and closed, the protruding tooth 201 is rotated to the direction of the hood to be opened and closed. When the hood is opened, under the pulling of the pulling component, when the pulling force is greater than the static torque of the return torsion spring 3 in the active claw 1, the active claw 1 begins to rotate so that the protruding tooth 201 disengages from the mating position. At this point, the engagement between the active claw 1 and the driven claw 2 is released. At the same time, since the limit of the active claw 1 disappears, the return torsion spring 3 located in the driven claw 2 is released, driving the top of the driven claw 2 to rotate toward the tail end of the hood to be opened and closed. At this time, the position of the protruding tooth 201 also rotates synchronously from the original position facing the active claw 1 to facing upward, that is, the direction of the hood to be opened and closed.
[0024] For further information, see Figure 1 The pulling component includes a short connecting rod 4, which includes a fixed end for being hinged to the vehicle body and a moving end for being hinged to the rear end of the hood to be opened and closed, and rising and falling synchronously with the opening and closing action of the hood to be opened and closed. The short connecting rod 4 is tilted, with the fixed end facing the head end of the hood to be opened and closed, which is hinged to the vehicle body and has a lower position, and the moving end facing the tail end of the hood to be opened and closed, which is hinged to the hood to be opened and closed, has a higher position and moves with the hood to be opened and closed. When the hood to be opened and closed is opened, the hood to be opened and closed changes from its original horizontal state to a state in which the head end is tilted upward, and the moving end will also rise synchronously.
[0025] For further information, see Figure 1 , a support leg 6 is provided at the bottom of the moving end for supporting the top of the protruding tooth 201, and a pull rope 5 is provided at the fixed end for connecting the bottom of the active claw 1, so as to pull the active claw 1 to rotate when the hood to be opened and closed is opened, so as to make the protruding tooth 201 disengage from the mating position. At the early stage of the opening process of the hood to be opened and closed, the rising moving end of the short connecting rod 4 is pulled by the pull rope 5, and the engagement between the active claw 1 and the driven claw 2 is released, the position of the protruding tooth 201 rotates upward, and the support leg 6 is lifted up by the protruding tooth 201. At this time, it is the late stage of the opening process of the hood to be opened and closed, and the support leg 6 is connected to the moving end of the short connecting rod 4 to form a whole. The short connecting rod 4 is connected to the tail end of the hood to be opened and closed. Therefore, the rise of the support leg 6 will also drive the tail end of the hood to be opened and closed to rise, preventing it from falling due to gravity and causing interference with the fender.
[0026] For further information, see Figure 1The pulling assembly also includes a connecting plate 7 and a movable arm 8. Specifically, the connecting plate 7 is arranged along the length direction of the vehicle body and fixedly connected to the vehicle frame. In the actual installation scenario, the connecting plate 7 is mainly arranged at the middle and rear section of the hood to be opened and closed, and the lifting assembly is arranged on the inner wall of the connecting plate 7 (that is, the side facing the central axis of the vehicle). The lifting assembly is located at the tail end of the connecting plate 7 to face the tail end of the hood. The connecting plate 7 is fixed to the inner cavity of the frame through a connecting piece and can be located on other suitable positions such as the engine compartment frame. The specific installation position depends on the vehicle model, but it should be noted that after assembly is completed, the lifting assembly needs to face the tail end of the hood, and the pulling assembly needs to face the middle of the hood.
[0027] The outer side of the connecting plate 7 faces the inner wall of the frame, and the inner side of the connecting plate 7 is used to set the engaging assembly and the pulling assembly. The movable arm 8 is used to be fixedly connected to the hood to be opened and closed so as to rise and fall synchronously with the hood to be opened and closed. The top of the movable arm 8 is provided with a curved surface that fits with the bottom surface of the hood to be opened and closed. In this application, the movable arm 8 can be regarded as one with the hood to be opened and closed, and the tail end of the movable arm 8 is in the direction of the tail end of the hood to be opened and closed. The connecting plate 7 is regarded as one with the frame. One end of the short connecting rod 4 is hinged to the middle part of the connecting plate 7, and the other end is hinged to the tail end of the movable arm 8. The rise and fall of the movable end of the short connecting rod 4 are all realized based on the action of the movable arm 8.
[0028] For further information, see Figure 1 A limiting screw 701 is provided on the connecting plate 7 along the height direction of the vehicle body. The limiting screw 701 includes a nut end and a rod end. When the hood to be opened and closed is in the closed state, the top surface of the nut end abuts against the bottom surface of the movable arm 8 to provide auxiliary support and prevent the movable arm 8 and the hood to be opened and closed from sinking.
[0029] For further information, see Figure 1 The traction assembly also includes a long connecting rod 9 located on the outside of the movable arm 8 and rising and falling synchronously with the movable arm 8. One end of the long connecting rod 9 is hinged to the head end of the connecting plate 7, and the other end is hinged to the tail end of the movable arm 8, wherein the head end of the connecting plate 7 is in the direction of the head end of the hood to be opened and closed. In one embodiment, the long connecting rod 9 is arranged parallel to the movable arm 8 and is located on the side of the movable arm 8 away from the short connecting rod 4. One end thereof protrudes toward the connecting plate 7 to form a connecting end clamped between the connecting plate 7 and the frame, and the other end protrudes upward to form the other connecting end of the hinged movable arm 8. The long connecting rod 9 is mainly used to form a frame connecting rod structure with the short connecting rod 4, the connecting plate 7 and the movable arm 8, which can ensure and stabilize the correct displacement posture between the short connecting rod 4 and the movable arm 8.
[0030] For further information, see Figure 2The active claw 1 includes a first rotating engaging plate 101 and a first rotating shaft 102 that transversely passes through the first rotating engaging plate 101 and the connecting plate 7. The first rotating shaft 102 is parallel to the axis in the vehicle width direction. The first rotating engaging plate 101 can rotate around the axis. A fixed hook 103 for connecting the pull rope 5 is protruding from the bottom of the first rotating engaging plate 101. The fixed hook 103 extends downward for a certain length and is folded back at the extended end. A through hole for the pull rope 5 to pass through is provided at the folded portion.
[0031] Further, Figure 3 This is a schematic diagram of the back structure of the lifting assembly in the device for eliminating interference in opening the four-link hinge hood provided in an embodiment of the present application, see Figure 3 The active claw 1 is provided with a first fixed plate 104 fixedly connected to the connecting plate 7 on the inner side thereof facing the connecting plate 7. The first fixed plate 104 is separately arranged from the active claw 1. During the movement of the structure, the first fixed plate 104 always remains in a fixed state, and the first rotating shaft 102 also synchronously passes through the first fixed plate 104. The reset torsion spring 3 also includes a first torsion spring 301 which is sleeved on the outer periphery of the first rotating shaft 102 and engaged with the first fixed plate 104. Based on the setting of the first fixed plate 104, the first torsion spring 301 can be prevented from rotating synchronously with the active claw 1.
[0032] The reset torsion spring 3 is an existing component, which generally includes a fixed arm and a rotating arm. The fixed arm remains stationary, and the rotating arm rotates around the axis of the reset torsion spring 3, providing torque through elastic deformation. Therefore, in this case, a first engaging end 105 is protruding from the top of the first fixed plate 104, and the fixed arm of the first torsion spring 301 is engaged with the first engaging end 105. The torsional wall of the first torsion spring 301 is bent to hook on the fixed hook 103. During the opening process of the hood, the fixed arm engaged on the first fixed plate 104 does not move, and the fixed hook 103 is pulled by the pull rope 5. The movable arm 8 fixed on the fixed hook 103 begins to rotate around the axis of the reset torsion spring 3, and the top of the first rotating engagement plate 101 begins to rotate and press down toward the direction of the driven claw 2.
[0033] For further information, see Figure 2 The driven claw 2 includes a second rotating engaging plate 202 and a second rotating shaft 203 that transversely passes through the second rotating engaging plate 202 and the connecting plate 7. The second rotating engaging plate 202 and the second rotating shaft 203 have the same arrangement position and function as the first rotating engaging plate 101 and the first rotating shaft 102 in the active claw 1, and will not be described in detail here.
[0034] For further information, see Figure 2 、 Figure 3The driven claw 2 is provided with a second fixing plate 205 fixedly connected to the connecting plate 7 on the inner side thereof. The reset torsion spring 3 also includes a second torsion spring 302 sleeved on the outer periphery of the second rotating shaft 203 and engaged with the second fixing plate 205. The second fixing plate 205 also serves as a fixing member of the second torsion spring 302. A second engaging end 206 is protruding from the bottom thereof for fixing the fixed arm of the second torsion spring 302. A locking ear 204 is protruding from the top of the second rotating engaging plate 202 for torsion of the second torsion spring 302. When the active claw 1 and the driven claw 2 are engaged, the driven claw 2 is limited by the active claw 1, so that the second torsion spring 302 is in a squeezed state. When the active claw 1 and the driven claw 2 are disengaged, the elastic potential energy of the second torsion spring 302 drives the release, and the torsion arm of the second torsion spring 302 is located at the top of the second rotating engagement plate 202. Therefore, the top of the second rotating engagement plate 202 rotates a certain distance in the direction away from the active claw 1 to lift the protruding tooth 201 and the movable end of the short connecting rod 4, thereby lifting the tail end of the hood to be opened and closed.
[0035] For further information, see Figure 2 , the first rotating meshing plate 101 is provided with a mating tooth 106 protruding from one side of the driven claw 2, and the height difference between the mating tooth 106 and the fixed hook 103 forms a mating position, and the protruding tooth 201 includes a meshing tooth 2011 that fits the bottom of the mating tooth 106 in the meshing state and a top tooth 2012 located at the top of the mating tooth 106. In the meshing state, the meshing tooth 2011 is pressed by the mating tooth 106 to prevent the second rotating meshing plate 202 from rotating, and the top tooth 2012 is located above the mating tooth 106 and directly facing the supporting leg 6. The top of the meshing tooth 2011 is configured to be tilted downward, and the top surface of the meshing tooth 2011 is provided with a downwardly inclined arc surface, and the bottom of the mating tooth 106 is engaged. A mating surface is provided on the part that fits with the downwardly inclined arc surface, so that the mating tooth 106 can slide out of the meshing tooth 2011 while following the rotation and downward pressure of the first rotating meshing plate 101, and the engagement between the active claw 1 and the driven claw 2 is released. Driven by the second torsion spring 302, the lifting tooth 2012 rises and lifts the support leg 6. Of course, in another possible embodiment, the lifting tooth 2012 is removed, and only the meshing tooth 2011 is used to achieve the simultaneous engagement and lifting functions. However, this structure requires the simultaneous increase in the size of the driven claw 2 and the extension of the overall rotatable path of the structure. The provision of the lifting tooth 2012 can reduce the space occupied by the structure and improve the structural response performance.
[0036] The mechanism of the device for eliminating the interference of opening the four-link hinge hood in this application is as follows: In the initial state, see Figure 2 The active claw 1 and the driven claw 2 are statically engaged, and the mating tooth 106 in the active claw 1 presses the meshing tooth 2011 in the driven claw 2. At this stage, the first torsion spring 301 in the active claw 1 is in the initial state, and the second torsion spring 302 in the driven claw 2 is squeezed toward the active claw 1. Figure 4A schematic diagram of a jacking assembly in a device for eliminating interference in opening a four-link hinge hood provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, when the hood to be opened and closed is opened, the bottom of the active claw 1 faces the head end of the hood to be opened and closed ( Figure 4 The right side of the middle) rotates, the matching tooth 106 slides out of the meshing tooth 2011, and the second torsion spring 302 in the driven claw 2 elastically drives the top of the driven claw 2 toward the tail end of the hood to be opened and closed ( Figure 4 When the hood is to be closed, the supporting leg 6 drops down synchronously, forcing the lifting tooth 2012 to drive the driven claw 2 to rotate toward the active claw 1, and the meshing tooth 2011 gradually approaches the upper surface of the matching tooth 106. The downward pressure continues, and the active claw 1 and the driven claw 2 begin to rotate inward synchronously. After a brief contact between the meshing tooth 2011 and the matching tooth 106, they move away from each other along their respective annular paths, and finally the hood is released. Under the elastic potential energy of their respective reset torsion springs 3, the meshing tooth 2011 and the matching tooth 106 rotate, and the matching tooth 106 presses the meshing tooth 2011 again, returning to the initial state, and completing the locking.
[0037] In a second aspect, an embodiment of the present application provides a vehicle comprising two sets of the above-mentioned devices for eliminating interference in opening a four-link hinged hood, and the two sets of devices for eliminating interference in opening a four-link hinged hood are arranged on both sides of the vehicle hood along the width direction of the vehicle body.
[0038] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0039] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.
[0040] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.
Claims
1. A device for eliminating interference in opening a four-link hinge hood, characterized in that: include: A lifting assembly, the lifting assembly comprising an active claw (1) and a driven claw (2) which are arranged along the length direction of the vehicle body and can rotate on their own, the active claw (1) and the driven claw (2) are both provided with a return torsion spring (3) for driving the top of the active claw (1) and the top of the driven claw (2) to rotate toward the rear end of the hood to be opened and closed, a protruding tooth (201) is provided on one side of the driven claw (2), and a matching position for unidirectional embedding of the protruding tooth (201) is provided on the opposite side of the active claw (1), and when the protruding tooth (201) is disengaged from the matching position under the action of an external force, the protruding tooth (201) rotates to a direction toward the hood to be opened and closed under the twisting of the return torsion spring (3) in the driven claw (2); A pulling assembly, the pulling assembly comprising a short connecting rod (4), the short connecting rod (4) comprising a fixed end for being hinged to the vehicle body, and a moving end for being hinged to the rear end of the hood to be opened and closed and synchronously rising and falling following the opening and closing action of the hood to be opened and closed, the bottom of the moving end is provided with a support leg (6) for supporting the top of the protruding tooth (201), and the fixed end is provided with a pull rope (5) connected to the bottom of the active claw (1) for pulling the active claw (1) to rotate when the hood to be opened and closed is opened, so that the protruding tooth (201) is disengaged from the mating position.
2. The device for eliminating interference in opening a four-link hinge hood according to claim 1, characterized in that: The pulling assembly further comprises a connecting plate (7) and a movable arm (8), wherein the connecting plate (7) is arranged along the length direction of the vehicle body and fixedly connected to the vehicle frame, the lifting assembly is arranged on the inner side wall of the connecting plate (7), the movable arm (8) is used to be fixedly connected to the hood to be opened and closed so as to rise and fall synchronously with the hood to be opened and closed, one end of the short connecting rod (4) is hinged to the middle part of the connecting plate (7), and the other end is hinged to the tail end of the movable arm (8), wherein the tail end of the movable arm (8) is in the direction of the tail end of the hood to be opened and closed.
3. The device for eliminating interference in opening a four-link hinge hood according to claim 2, characterized in that: The connecting plate (7) is provided with a limiting screw (701) arranged along the height direction of the vehicle body. The limiting screw (701) comprises a nut end and a rod end. The top surface of the nut end abuts against the bottom surface of the movable arm (8).
4. The device for eliminating interference in opening a four-link hinge hood according to claim 2, characterized in that: The pulling assembly further includes a long connecting rod (9) located outside the movable arm (8) and rising and falling synchronously with the movable arm (8), one end of the long connecting rod (9) is hinged to the head end of the connecting plate (7), and the other end is hinged to the tail end of the movable arm (8), wherein the head end of the connecting plate (7) is in the direction of the head end of the hood to be opened and closed.
5. The device for eliminating interference in opening a four-link hinge hood according to claim 2, characterized in that: The active claw (1) comprises a first rotating engagement plate (101) and a first rotating shaft (102) that transversely passes through the first rotating engagement plate (101) and the connecting plate (7). A fixing hook (103) for connecting the pull rope (5) is protruding from the bottom of the first rotating engagement plate (101).
6. The device for eliminating interference in opening a four-link hinge hood according to claim 5, characterized in that: The active claw (1) is provided with a first fixed plate (104) fixedly connected to the connecting plate (7) on the inner side of the connecting plate (7), and the reset torsion spring (3) includes a first torsion spring (301) sleeved on the outer periphery of the first rotating shaft (102) and engaged with the first fixed plate (104), and a first engaging end (105) is protruding from the top of the first fixed plate (104), a fixed arm of the first torsion spring (301) is engaged with the inner side of the first engaging end (105), and a torsion wall is bent to hook on the fixing hook (103).
7. The device for eliminating interference in opening a four-link hinge hood according to claim 5, characterized in that: The driven claw (2) comprises a second rotating engagement plate (202) and a second rotating shaft (203) that transversely passes through the second rotating engagement plate (202) and the connecting plate (7), and a snap-fit ear (204) is protruding from the top of the second rotating engagement plate (202).
8. The device for eliminating interference in opening a four-link hinge hood according to claim 7, characterized in that: The driven claw (2) is provided with a second fixed plate (205) fixedly connected to the connecting plate (7) on the inner side thereof facing the connecting plate (7); the reset torsion spring (3) further comprises a second torsion spring (302) sleeved on the outer periphery of the second rotating shaft (203) and engaged with the second fixed plate (205); a second engaging end (206) is protruding from the bottom of the second fixed plate (205); a torsion arm of the second torsion spring (302) is engaged with the engaging ear (204); and a fixed wall is bent to engage with the second engaging end (206).
9. The device for eliminating interference in opening a four-link hinge hood according to claim 8, characterized in that: The first rotating engaging plate (101) is provided with a mating tooth (106) protruding toward one side of the driven claw (2), and the height difference between the mating tooth (106) and the fixed hook (103) forms a mating position, and the protruding tooth (201) includes an engaging tooth (2011) that is in contact with the bottom of the mating tooth (106) in the engaged state and a lifting tooth (2012) located at the top of the mating tooth (106), the top surface of the engaging tooth (2011) is provided with a downwardly inclined arc surface, and the bottom of the mating tooth (106) is provided with a mating surface that is in contact with the downwardly inclined arc surface, and the supporting leg (6) abuts against the top surface of the lifting tooth (2012).
10. A vehicle, characterized in that: The inner wall of the vehicle's hood is provided with two sets of devices for eliminating interference in opening the four-link hinge hood as described in any one of claims 1 to 9, and the two sets of devices for eliminating interference in opening the four-link hinge hood are arranged on both sides of the vehicle hood along the width direction of the vehicle body.