Engine hood hinge device and vehicle
By designing an engine hood hinge device that includes a fixed component, a movable component, a spring-loaded component, a linkage component, a lifter, and a limiting device, the problem of the inability of the engine hood hinge to be restored in the prior art is solved, thereby enabling the reuse of the engine hood and reducing personal injury.
Patent Information
- Application Number
- CN202520227017.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing active pop-up hood hinges cannot be restored after a pedestrian-vehicle collision, resulting in a complex structure that cannot be reused, thus increasing vehicle maintenance costs.
An engine hood hinge device is designed, including a fixed part, a movable part, a spring-loaded part, a linkage part, a lifter, a first elastic part, and a limiting device. Through the cooperation of the linkage part and the elastic part, the engine hood can be automatically lifted during a collision, and the limiting device can keep the engine hood in the lifted state. After the accident, it can be restored to the initial state for reuse.
After a pedestrian-vehicle collision, the hood hinge mechanism can be restored, reducing vehicle repair costs and preventing direct contact between the pedestrian's head and hard points inside the hood, thus reducing pedestrian injuries.
Smart Images
Figure CN223689503U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle parts technical field especially, relate to a kind of engine bonnet hinge device and vehicle. BACKGROUND
[0002] The rear end of the engine hood is rotatably connected to the vehicle body by the engine hood hinge.
[0003] At present on the market, ordinary engine hood hinge is fixed, and the rear end of the engine hood cannot be automatically lifted in the event of a pedestrian-vehicle collision. Some vehicles are equipped with an active lifting engine hood hinge, which can lift the rear end of the engine hood to a certain height before the pedestrian's head contacts the engine hood in the event of a pedestrian-vehicle collision, preventing the pedestrian's head from contacting the hard points inside the engine hood.
[0004] However, the existing active lifting engine hood hinge uses a multi-link structure, resulting in a complex structure. After a pedestrian-vehicle collision, the engine hood hinge cannot be restored and cannot be reused. SUMMARY
[0005] The technical problem to be solved by the utility model is that the existing active lifting engine hood hinge cannot be restored after a pedestrian-vehicle collision. The utility model provides an engine hood hinge device and a vehicle.
[0006] To solve the above problems, on the one hand, the utility model embodiment provides an engine hood hinge device, which comprises a fixed part, a movable part, a lifting part, a linkage part, a jacking device, a first elastic part, and a limiting device. The front end of the lifting part is hingedly connected to the movable part, and the rear end of the lifting part is hingedly connected to the fixed part. The linkage part is hingedly connected to the fixed part. One end of the jacking device is hingedly connected to the fixed part, and the other end of the jacking device is hingedly connected to the lifting part.
[0007] One end of the linkage part is movably connected to the lifting part, and the first elastic part is connected between the fixed part and the linkage part, so that the linkage part has a tendency to rotate counterclockwise, allowing the lifting part to be limited to a first position when the engine hood is closed.
[0008] When the jacking device is triggered, it can drive the lifting part to rotate upward, and the limiting device can resist the lower edge of the lifting part when the lifting part rotates upward to a second position.
[0009] The engine cover hinge device provided by the embodiment of the utility model, one end of the linkage member is movably connected with the pop-up member, the first elastic member is connected between the fixed member and the linkage member, and is used for making the first elastic member have a counterclockwise rotation trend (namely, one end of the linkage member connected with the pop-up member has a downward rotation trend, and the other end of the linkage member has an upward rotation trend), so that the pop-up member can be limited at the first position in the engine cover closed state. When a pedestrian vehicle collision occurs, the jacking device is triggered (for example, triggered by a collision sensor at the front of the vehicle), the jacking device can drive the pop-up member to rotate upward, thereby overcoming the elastic force of the first elastic member to drive the linkage member to rotate clockwise, and drive the movable member to lift (pop up upward), the lifting of the movable member can drive the engine cover to pop up upward around the front end lock buckle connection point of the engine cover along with the movable member, when the pop-up member rotates upward to the second position, the limiting device can resist the lower edge of the pop-up member to limit the downward rotation of the pop-up member, so that the movable member and the engine cover cannot descend again. In this way, when the pedestrian hits the engine cover, a buffer space is formed between the engine cover and the hard point in the engine cover, avoiding the direct contact of the pedestrian's head with the hard point in the engine cover, and reducing the injury suffered by the pedestrian. It can be seen that after the pedestrian vehicle collision, due to the limiting effect of the limiting device, the engine cover hinge device will not be damaged, and part or all of the parts can be reused, thereby reducing the vehicle maintenance cost. Specifically, when the vehicle is maintained, the limiting device can be restored to the initial vehicle installation state by external force, the downward rotation limiting effect of the limiting device on the pop-up member is released, then the movable member is pressed downward to drive the pop-up member to return to the initial vehicle installation state (normal closed state of the engine cover), and the first elastic member makes the linkage member return to the initial vehicle installation state. Thus, after the pop-up member returns to the initial vehicle installation state, the linkage member can limit the pop-up member at the first position again. In addition, after the pop-up member returns to the first position, the position of the linkage member in the initial vehicle installation state can also be limited. In this way, after the pedestrian-vehicle collision accident occurs, the engine cover hinge device can be restored, the reuse of the engine cover hinge device is realized, and the vehicle maintenance cost is reduced.
[0010] Optionally, the front end of the pop-up member and the hinge axis of the movable member are a first axis, the rear end of the pop-up member and the hinge axis of the fixed member are a second axis, the hinge axis of the linkage member and the fixed member is a third axis, one end of the jacking device and the hinge axis of the fixed member are a fourth axis, the other end of the jacking device and the hinge axis of the pop-up member are a fifth axis; the first axis, the second axis, the third axis, the fourth axis and the fifth axis are parallel to each other.
[0011] The third axis is located below the first axis and the second axis, the fifth axis is located below the first axis, and the fourth axis is located below the fifth axis.
[0012] Optionally, one end of the linkage is connected with a first shaft pin, the pop-up piece is provided with a guide slot, the first shaft pin is slidingly arranged in the guide slot, in the hood closing state, the first shaft pin is pushed downward by the elastic force of the first elastic piece, when the jack is triggered, one end of the linkage can be rotated upward under the pushing of the first shaft pin; and / or,
[0013] The other end of the linkage is provided with a groove, the pop-up piece is connected with a second shaft pin, in the hood closing state, the second shaft pin is clamped in the groove and pushes the pop-up piece upward by the elastic force of the first elastic piece; and / or,
[0014] The fixing piece is connected with a third shaft pin, in the hood closing state, the third shaft pin abuts against the pop-up piece to limit the downward rotation of the pop-up piece.
[0015] Optionally, the linkage and the fixing piece are hinged through a fourth shaft pin, the central axis of the fourth shaft pin is the third axis, the linkage is located between the pop-up piece and the fixing piece.
[0016] Optionally, the first elastic piece is a torsion spring, the torsion spring is sleeved on the section of the fourth shaft pin between the linkage and the fixing piece, one free end of the torsion spring is connected to the fixing piece, and the other free end of the torsion spring is connected to the linkage.
[0017] Optionally, the limiting device comprises a second elastic piece and a limiting pin, the second elastic piece is arranged on the fixing piece, and the limiting pin is connected to the second elastic piece.
[0018] The elastic force of the second elastic piece causes the limiting pin to have a tendency to move close to the pop-up piece, when the pop-up piece is rotated upward to the second position, the limiting pin moves in the direction close to the pop-up piece to abut against the lower edge of the pop-up piece.
[0019] Optionally, the fixing piece is provided with a limiting through hole corresponding to the position of the limiting pin, the limiting pin is inserted into the limiting through hole, before the pop-up piece is rotated upward to the second position, one end of the limiting pin close to the pop-up piece abuts against the side surface of the pop-up piece close to the fixing piece, when the pop-up piece is rotated upward to the second position, one end of the limiting pin close to the pop-up piece moves in the direction away from the limiting through hole to abut against the lower edge of the pop-up piece; and / or,
[0020] The lower edge of the pop-up piece is provided with a limiting notch, when the pop-up piece is rotated upward to the second position, one end of the limiting pin close to the pop-up piece moves in the direction away from the limiting through hole and is inserted into the limiting notch; and / or,
[0021] The second elastic member is a spring leaf, the lower end of the spring leaf is fixed on the fixed member, and the end of the limiting pin away from the pop-up member is fixed on the upper end of the spring leaf.
[0022] Optionally, the jacking device is a pneumatic cylinder, one of the cylinder body and the piston rod of the pneumatic cylinder is hinged to the fixed member, and the other is hinged to the pop-up member.
[0023] The jacking device is a hydraulic cylinder, one of the cylinder body and the piston rod of the hydraulic cylinder is hinged to the fixed member, and the other is hinged to the pop-up member.
[0024] In another aspect, the utility model provides a vehicle, including engine hood and the engine hood hinge device of the engine hood,
[0025] The fixed member is fixedly connected to the vehicle body or is a part of the vehicle body, and the movable member is fixed to the rear end of the engine hood.
[0026] Optionally, the engine hood hinge device is provided with two along the left-right direction of the vehicle, the movable member of the left engine hood hinge device is fixed to the left side of the rear end of the engine hood, and the movable member of the right engine hood hinge device is fixed to the right side of the rear end of the engine hood. BRIEF DESCRIPTION OF DRAWINGS
[0027] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used in the description of the utility model embodiment, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creative labor.
[0028] Figure 1 It is the structural schematic diagram of the engine hood hinge device provided in an embodiment of the utility model,
[0029] Figure 2 It is the schematic diagram of the engine hood hinge device provided in an embodiment of the utility model in the normal closing state of the engine hood,
[0030] Figure 3 It is the schematic diagram of the engine hood hinge device provided in an embodiment of the utility model in the process of the pop-up member being popped up,
[0031] Figure 4 It is the schematic diagram of the engine hood hinge device provided in an embodiment of the utility model in the process of the pop-up member being popped up,
[0032] The reference signs in the description are as follows:
[0033] 1, fixed part; 11, limiting through hole; 2, movable part; 3, pop-up part; 31, guide groove; 32, limiting surface; 33, limiting notch; 4, linkage; 41, groove; 5, jacking device; 6, first elastic part; 7, limiting device; 71, second elastic part; 72, limiting pin; 8, connecting part (not shown in the figure); 81, first shaft pin; 82, second shaft pin; 83, third shaft pin; 84, fourth shaft pin; 85, fifth shaft pin; 86, sixth shaft pin; 87, ball head bolt. DETAILED DESCRIPTION
[0034] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.
[0035] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0036] As Figures 1 to 4 shown, the utility model embodiment provides a kind of engine hood hinge device, including fixed part 1, movable part 2, pop-up part 3, linkage 4, jacking device 5, first elastic part 6 and limiting device 7, fixed part 1 is suitable for fixed connection in car body or as part of car body, movable part 2 is suitable for being fixed in the rear end of engine hood, the front end of pop-up part 3 is hinged on movable part 2, the rear end of pop-up part 3 is hinged on fixed part 1, linkage 4 is hinged on fixed part 1, one end of jacking device 5 is hinged on fixed part 1, the other end of jacking device 5 is hinged on pop-up part 3. One end of linkage 4 is movably connected with pop-up part 3, first elastic part 6 is connected between fixed part 1 and linkage 4, for making linkage 4 have the tendency of counterclockwise rotation, to be able to limit pop-up part 3 at first position in the state of engine hood closing (see Figure 2 ). When jacking device 5 is triggered, it can drive pop-up part 3 to rotate upwards, limiting device 7 can resist the lower edge of pop-up part 3 when pop-up part 3 rotates upwards to second position (see Figure 4 ).
[0037] The engine hood hinge device of the embodiment of the utility model, one end of linkage 4 is movably connected with pop-up piece 3, first elastic piece 6 is connected between fixed piece 1 and linkage 4, for making first elastic piece 6 have the tendency of counterclockwise rotation (namely the end of linkage 4 connected with pop-up piece 3 has the tendency of downward rotation, the other end of linkage 4 has the tendency of upward rotation), to be able to limit pop-up piece 3 at the first position under the closed state of the engine hood. When the pedestrian vehicle collision occurs, the jacking device 5 is triggered (for example, triggered by the collision sensor at the front of the vehicle), the jacking device 5 can drive the pop-up piece 3 to rotate upward, and then overcome the elastic force of the first elastic piece 6 to drive the linkage 4 to rotate clockwise, and drive the movable piece 2 to lift (pop up upward), the lifting of the movable piece 2 can drive the engine hood to pop up upward along with the movable piece 2 around the front end of the engine hood. When the pop-up piece 3 rotates to the second position, the limiting device 7 can resist the lower edge of the pop-up piece 3 to limit the downward rotation of the pop-up piece 3, so that the movable piece 2 and the engine hood cannot be lowered. In this way, when the pedestrian hits the engine hood, a buffer space is formed between the engine hood and the hard point in the engine hood, avoiding direct contact between the pedestrian's head and the hard point in the engine hood, reducing the injury to the pedestrian. It can be seen that after the vehicle collision, due to the limiting effect of the limiting device 7, the components of the engine hood hinge device will not be damaged, and part or all of the parts can be reused, which can reduce the vehicle maintenance cost. Specifically, when the vehicle is repaired, the limiting device 7 can be restored to the initial vehicle installation state by external force, the downward rotation limiting effect of the limiting device 7 on the pop-up piece 3 is released, and then the movable piece 2 is pressed downward to drive the pop-up piece 3 to return to the initial vehicle installation state (normal closed state of the engine hood), and the first elastic piece 6 makes the linkage 4 return to the initial vehicle installation state. Thus, after the pop-up piece 3 returns to the initial vehicle installation state, the linkage 4 can limit the pop-up piece 3 to the first position. In addition, after the pop-up piece 3 returns to the first position, the linkage 4 can also be limited to the position of the initial vehicle installation state. In this way, after the pedestrian-vehicle collision accident occurs, the engine hood hinge device can be restored, the reuse of the engine hood hinge device is realized, and the vehicle maintenance cost is reduced.
[0038] The fixed piece 1 is used to install other parts of the engine hood hinge device, and provides support for other parts. Of course, the fixed piece 1 can also be part of the vehicle body.
[0039] In an embodiment, one end of the jacking device 5 hinged to the pop-up piece 3 extends away from the end connected to the fixed piece 1. When the pop-up piece 3 rotates upward to the second position, the limiting device 7 is below the pop-up piece 3.
[0040] In an embodiment, the front end of the pop-up piece 3 and the hinging axis of the movable piece 2 are a first axis, the rear end of the pop-up piece 3 and the hinging axis of the fixed piece 1 are a second axis, the hinging axis of the linkage piece 4 and the fixed piece 1 are a third axis, one end of the jacking device 5 and the hinging axis of the fixed piece 1 are a fourth axis, the other end of the jacking device 5 and the hinging axis of the pop-up piece 3 are a fifth axis. The first axis, the second axis, the third axis, the fourth axis and the fifth axis are parallel to each other, so that the movement of the engine hood hinging device is smooth and will not be stuck; the third axis is below the first axis and the second axis, the fifth axis is below the first axis, and the fourth axis is below the fifth axis.
[0041] In an embodiment, one end of the linkage piece 4 is connected with a first shaft pin 81, the pop-up piece 3 is provided with a guide groove 31, the first shaft pin 81 is slidingly arranged in the guide groove 31, in the engine hood closing state, the first shaft pin 81 pushes the pop-up piece 3 downward by the elastic force of the first elastic piece 6, when the jacking device 5 is triggered, one end of the linkage piece 4 can be rotated upward by the pushing of the first shaft pin 81, so that the linkage piece 4 can rotate clockwise following the pop-up piece 3. Specifically, the first shaft pin 81 comprises a first shaft and a first shaft sleeve, the first shaft has a head portion and a rod portion connected with each other, the first shaft sleeve has a sleeve portion and a flange edge connected to the axial one end of the sleeve portion, the sleeve portion of the first shaft sleeve is sleeved on the rod portion of the first shaft, the head portion of the first shaft and the flange edge of the first shaft sleeve are clamped on the two sides in the thickness direction of the linkage piece 4, so that the first shaft pin 81 cannot slide relative to the linkage piece 4. The sleeve portion of the first shaft sleeve is slidingly arranged in the guide groove 31. The guide groove 31 of the pop-up piece 3 can limit the maximum upward rotation angle of the pop-up piece 3.
[0042] In an embodiment, the other end of the linkage piece 4 is provided with a groove 41, the pop-up piece 3 is connected with a second shaft pin 82, in the engine hood closing state, the second shaft pin 82 is clamped in the groove 41 and pushes the pop-up piece 3 upward by the elastic force of the first elastic piece 6, so that the end of the pop-up piece 3 connected with the linkage piece 4 has a tendency to rotate upward, and the position of the pop-up piece 3 connected with the other end of the linkage piece 4 and the groove 41 also has a tendency to rotate upward, thus the pop-up piece 3 can be limited in the first position in the engine hood closing state. The second shaft pin 82 comprises a second shaft and a second shaft sleeve, the second shaft has a head portion and a rod portion connected with each other, the second shaft sleeve has a sleeve portion and a flange edge connected to the axial one end of the sleeve portion, the sleeve portion of the second shaft sleeve is sleeved on the rod portion of the second shaft, the head portion of the second shaft and the flange edge of the second shaft sleeve are clamped on the two sides in the thickness direction of the pop-up piece 3, so that the second shaft pin 82 cannot slide relative to the pop-up piece 3. In the engine hood closing state, the head portion of the second shaft is clamped in the groove 41 and pushes the second shaft pin 82 upward.
[0043] In an embodiment, the third shaft pin 83 is connected to the fixed part 1, and abuts against the pop-up part 3 in the closed state of the engine hood to limit the downward rotation of the pop-up part 3. In this way, the downward rotation of the pop-up part 3 in the closed state of the engine hood can be limited. The third shaft pin 83 comprises a third shaft and a third shaft sleeve, the third shaft has a head and a rod connected to each other, the third shaft sleeve has a sleeve part and a flange connected to one end of the sleeve part in the axial direction, the sleeve part of the third shaft sleeve is sleeved on the rod of the third shaft, and the head of the third shaft and the flange of the third shaft sleeve are clamped on both sides in the thickness direction of the fixed part 1, so that the third shaft pin 83 cannot slide relative to the fixed part 1. In the closed state of the engine hood, the sleeve part of the third shaft sleeve abuts against the pop-up part 3.
[0044] In an embodiment, the linkage part 4 is hinged to the fixed part 1 through a fourth shaft pin 84, the central axis of the fourth shaft pin 84 is the third axis, and the linkage part 4 is located between the pop-up part 3 and the fixed part 1.
[0045] In an embodiment, the first elastic part 6 is a torsion spring, the torsion spring is sleeved on the mounting part of the fourth shaft pin 84, and the torsion spring is sleeved on the section of the fourth shaft pin 84 between the linkage part 4 and the fixed part 1. One free end of the torsion spring is connected to the fixed part 1, and the other free end of the torsion spring is connected to the linkage part 4. Specifically, the fixed part 1 is provided with a first mounting hole for hooking one free end of the torsion spring, and the linkage part 4 is provided with a second mounting hole for hooking the other free end of the torsion spring.
[0046] In an embodiment, the fourth shaft pin 84 comprises a fourth left shaft, a fourth right shaft and a fourth shaft sleeve, the fourth left shaft has a head and a rod connected to each other, the fourth right shaft has a head and a rod connected to each other, the fourth shaft sleeve has a sleeve part and a first flange and a second flange connected to both ends of the sleeve part in the axial direction, the rods of the fourth left shaft and the fourth right shaft are respectively inserted into the sleeve part of the fourth shaft sleeve from the left and right sides of the fourth shaft sleeve, and the head of the fourth left shaft and the first flange of the fourth shaft sleeve are clamped on both sides in the thickness direction of the linkage part 4, so that the fourth shaft pin 84 cannot slide relative to the linkage part 4. The head of the fourth right shaft and the second flange of the fourth shaft sleeve are clamped on both sides in the thickness direction of the fixed part 1, so that the fourth shaft pin 84 cannot slide relative to the fixed part 1. The torsion spring is sleeved on the sleeve part of the fourth shaft sleeve, and the axial displacement of the torsion spring is limited by the first flange and the second flange of the fourth shaft sleeve.
[0047] In an embodiment, the front end of the pop-up piece 3 is hinged to the rear side of the movable piece 2 by a fifth shaft pin 85, the central axis of the fifth shaft pin 85 being the first axis. The fifth shaft pin 85 comprises a fifth shaft and a fifth shaft sleeve, the fifth shaft having a head and a rod connected to each other, the fifth shaft sleeve having a sleeve part and a flange connected to one axial end of the sleeve part, the sleeve part of the fifth shaft sleeve being sleeved on the rod of the fifth shaft, the head of the fifth shaft and the flange of the fifth shaft sleeve being clamped on both sides in the thickness direction of the movable piece 2, so that the fifth shaft pin 85 cannot slide relative to the movable piece 2. The end of the rod of the fifth shaft is provided with an annular flange, and the annular flange of the rod of the fifth shaft and the flange of the fifth shaft sleeve are clamped on both sides in the thickness direction of the pop-up piece 3, so that the fifth shaft pin 85 cannot slide relative to the pop-up piece 3.
[0048] In an embodiment, the rear end of the pop-up piece 3 is hinged to the fixed piece 1 by a sixth shaft pin 86, the central axis of the sixth shaft pin 86 being the second axis, and the rear end of the pop-up piece 3 rotates around the central axis of the sixth shaft pin 86. The sixth shaft pin 86 comprises a sixth shaft and a sixth shaft sleeve, the sixth shaft having a head and a rod connected to each other, the sixth shaft sleeve having a sleeve part and a flange connected to one axial end of the sleeve part, the sleeve part of the sixth shaft sleeve being sleeved on the rod of the sixth shaft, the head of the sixth shaft and the flange of the sixth shaft sleeve being clamped on both sides in the thickness direction of the fixed piece 1, so that the sixth shaft pin 86 cannot slide relative to the fixed piece 1. The end of the rod of the sixth shaft is provided with an annular flange, and the annular flange of the rod of the sixth shaft and the flange of the sixth shaft sleeve are clamped on both sides in the thickness direction of the pop-up piece 3, so that the sixth shaft pin 86 cannot slide relative to the pop-up piece 3.
[0049] In an embodiment, the limiting device 7 comprises a second elastic piece 71 and a limiting pin 72, the second elastic piece 71 being arranged on the fixed piece 1, and the limiting pin 72 being connected to the second elastic piece 71. The elastic force of the second elastic piece 71 makes the limiting pin 72 have a tendency to move close to the pop-up piece 3, and before the pop-up piece 3 rotates upward to the second position (see Figure 2 and Figure 3 ), the limiting device 7 as a whole is located on one side of the pop-up piece 3, and when the pop-up piece 3 rotates upward to the second position (see Figure 4 ), under the action of the elastic force of the second elastic piece 71, the limiting pin 72 moves in the direction close to the pop-up piece 3 to resist the lower edge of the pop-up piece 3.
[0050] In an embodiment, the fixing member 1 is provided with a limiting through hole 11 corresponding to the position of the limiting pin 72, the limiting pin 72 is inserted into the limiting through hole 11, before the pop-up member 3 rotates upward to the second position, the end of the limiting pin 72 close to the pop-up member 3 abuts against the side surface of the pop-up member 3 close to the fixing member 1, when the pop-up member 3 rotates upward to the second position, under the elastic force of the second elastic member 71, the end of the limiting pin 72 close to the pop-up member 3 moves away from the limiting through hole 11 to resist the lower edge of the pop-up member 3 to limit the downward rotation of the pop-up member 3, so that the rear end of the engine cover is kept at a certain height.
[0051] In an embodiment, the lower edge of the pop-up member 3 is provided with a limiting notch 33, the limiting notch 33 of the pop-up member 3 is a U-shaped notch with the opening downward, when the pop-up member 3 rotates upward to the second position, under the elastic force of the second elastic member 71, the end of the limiting pin 72 close to the pop-up member 3 moves away from the limiting through hole 11 and is inserted into the limiting notch 33 of the pop-up member 3 to limit the downward rotation of the pop-up member 3, so that the rear end of the engine cover is kept in the pop-up state. The provision of the limiting notch 33 can avoid the movement of the limiting pin 72 in the front-rear direction, so that the position of the pop-up member 3 and the movable member 2 is more stable in the second position, which is conducive to the stable keeping of the engine cover at the predetermined height.
[0052] In an embodiment, the second elastic member 71 is a spring leaf, the lower end of the spring leaf is fixed on the fixing member 1 by riveting, bolt connection or welding, etc., the end of the limiting pin 72 away from the pop-up member 3 is fixed on the upper end of the spring leaf, the elastic force of the spring leaf makes the limiting pin 72 have a tendency to move close to the pop-up member 3. The limiting pin 72 comprises a seventh shaft and a seventh shaft sleeve, the seventh shaft has a head part and a rod part connected with each other, the seventh shaft sleeve has a sleeve part and a flange edge connected to the axial end of the sleeve part, the sleeve part of the seventh shaft sleeve is sleeved on the rod part of the seventh shaft, the head part of the seventh shaft and the flange edge of the seventh shaft sleeve are clamped on both sides in the thickness direction of the spring leaf, so that the seventh shaft pin is fixed on the upper end of the spring leaf.
[0053] In another embodiment, the limiting device 7 can also directly use a spring pin, which has a simpler structure and is more convenient to install. The housing part of the spring pin is fixed on the fixing member 1. The fixing member 1 is provided with a limiting through hole 11 corresponding to the position of the spring pin, before the pop-up member 3 rotates upward to the second position, the pin head of the spring pin is limited in the limiting through hole 11, when the pop-up member 3 rotates upward to the second position, under the elastic force of the spring in the spring pin, the end of the pin head of the spring pin close to the pop-up member 3 is ejected from the limiting through hole 11 to resist the lower edge of the pop-up member 3 to limit the downward rotation of the pop-up member 3.
[0054] Of course, in other embodiments, the spring can replace the spring leaf without changing the limiting pin 72.
[0055] In an embodiment, the jacking device 5 is a pneumatic cylinder, the cylinder body of which is hinged to the pop-up member 3 by a ball joint bolt 87 (the central axis of the ball joint bolt 87 is the fifth axis), and the piston rod of the cylinder is hinged to the fixed member 1 by another ball joint bolt 87 (the central axis of the ball joint bolt 87 is the sixth axis).
[0056] In another embodiment, the piston rod of the cylinder can also be hinged to the pop-up member 3 by a ball joint bolt 87, and the cylinder body of the cylinder is hinged to the fixed member 1 by a ball joint bolt 87.
[0057] In another embodiment, the jacking device 5 can also be a hydraulic cylinder, the cylinder body of which is hinged to the pop-up member 3, and the piston rod of the cylinder is hinged to the fixed member 1.
[0058] In another embodiment, the jacking device 5 can also be an electric cylinder.
[0059] In other embodiments, the shaft pin for the shaft function can also be replaced by a bolt-nut assembly.
[0060] In addition, the utility model embodiment further provides a vehicle, including the engine hood and the engine hood hinge device of above-mentioned embodiment. The fixed member 1 is suitable for fixedly connected on the vehicle body or the fixed member 1 is part of the vehicle body, and the movable member 2 is fixed at the rear end of the engine hood.
[0061] In an embodiment, the engine hood hinge device is provided with two along the left and right directions of the vehicle, the movable member 2 of the left engine hood hinge device is fixed at the left side of the rear end of the engine hood, and the movable member 2 of the right engine hood hinge device is fixed at the right side of the rear end of the engine hood. After the human-vehicle collision accident occurs, the left and right engine hood hinge devices are popped up simultaneously, so that the rear end of the engine hood is kept in the popped-up state and the position is basically horizontal, avoiding the left and right engine hood being uneven.
[0062] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.
Claims
1. An engine hood hinge arrangement, characterized in that, The device comprises a fixed part, a movable part, a pop-up part, a linkage part, a jack, a first elastic part and a limiting device, the front end of the pop-up part is hinged to the movable part, the rear end of the pop-up part is hinged to the fixed part, the linkage part is hinged to the fixed part, one end of the jack is hinged to the fixed part, the other end of the jack is hinged to the pop-up part; One end of the linkage part is movably connected to the pop-up part, the first elastic part is connected between the fixed part and the linkage part, so that the linkage part has a tendency to rotate counterclockwise, and the pop-up part can be limited to a first position in the closed state of the engine hood; When the jack is triggered, the pop-up part can be rotated upward, and the limiting device can resist the lower edge of the pop-up part when the pop-up part is rotated to a second position.
2. The hood hinge arrangement according to claim 1, characterized in that The hinging axis of the front end of the pop-up part and the movable part is a first axis, the hinging axis of the rear end of the pop-up part and the fixed part is a second axis, the hinging axis of the linkage part and the fixed part is a third axis, the hinging axis of one end of the jack and the fixed part is a fourth axis, and the hinging axis of the other end of the jack and the pop-up part is a fifth axis; the first axis, the second axis, the third axis, the fourth axis and the fifth axis are parallel to each other; The third axis is located below the first axis and the second axis, the fifth axis is located below the first axis, and the fourth axis is located below the fifth axis.
3. The hood hinge arrangement according to claim 1, characterized in that One end of the linkage part is connected with a first shaft pin, the pop-up part is provided with a guide groove, the first shaft pin is slidingly arranged in the guide groove, in the closed state of the engine hood, the first shaft pin pushes the pop-up part downward by the elastic force of the first elastic part, and in the case that the jack is triggered, one end of the linkage part can be rotated upward under the pushing of the first shaft pin; and / or, The other end of the linkage part is provided with a groove, the pop-up part is connected with a second shaft pin, in the closed state of the engine hood, the second shaft pin is clamped in the groove and pushes the pop-up part upward by the elastic force of the first elastic part; and / or, The fixed part is connected with a third shaft pin, in the closed state of the engine hood, the third shaft pin abuts against the pop-up part to limit the downward rotation of the pop-up part.
4. The hood hinge arrangement according to claim 2, characterized in that The linkage part and the fixed part are hinged through a fourth pin shaft, the central axis of the fourth pin shaft is the third axis, and the linkage part is located between the pop-up part and the fixed part.
5. The hood hinge arrangement according to claim 4, characterized in that The first elastic part is a torsion spring, the torsion spring is sleeved on the section of the fourth pin shaft located between the linkage part and the fixed part, one free end of the torsion spring is connected to the fixed part, and the other free end of the torsion spring is connected to the linkage part.
6. The hood hinge apparatus according to claim 1, characterized by The limiting device comprises a second elastic part and a limiting pin, the second elastic part is arranged on the fixed part, and the limiting pin is connected to the second elastic part. The elastic force of the second elastic member makes the limiting pin have a tendency to move close to the pop-up member, and when the pop-up member rotates upward to the second position, the limiting pin moves close to the pop-up member to block the lower edge of the pop-up member.
7. The hood hinge arrangement according to claim 6, characterized in that The fixing member is provided with a limiting hole corresponding to the position of the limiting pin, and the limiting pin is inserted into the limiting hole. Before the pop-up member rotates upward to the second position, the end of the limiting pin close to the pop-up member abuts against the side surface of the pop-up member close to the fixing member. When the pop-up member rotates upward to the second position, the end of the limiting pin close to the pop-up member moves away from the limiting hole to block the lower edge of the pop-up member; and / or, The lower edge of the pop-up member is provided with a limiting notch, and when the pop-up member rotates upward to the second position, the end of the limiting pin close to the pop-up member moves away from the limiting hole and is inserted into the limiting notch; and / or, The second elastic member is a spring leaf, the lower end of the spring leaf is fixed on the fixing member, and the end of the limiting pin away from the pop-up member is fixed on the upper end of the spring leaf. The elastic force of the spring leaf makes the limiting pin have a tendency to move close to the pop-up member.
8. The hood hinge arrangement according to any one of claims 1-7, characterized in that The jacking device is a pneumatic cylinder, and one of the cylinder body and the piston rod of the pneumatic cylinder is hinged to the fixing member, and the other is hinged to the pop-up member; or The jacking device is a hydraulic cylinder, and one of the cylinder body and the piston rod of the hydraulic cylinder is hinged to the fixing member, and the other is hinged to the pop-up member.
9. A vehicle characterized by comprising: The engine hood and the engine hood hinge device according to any one of claims 1-8 are included. The fixing member is fixedly connected to the vehicle body or is a part of the vehicle body, and the movable member is fixed to the rear end of the engine hood.
10. The vehicle of claim 9, wherein, The engine hood hinge device is provided with two along the left-right direction of the vehicle, and the movable member of the left engine hood hinge device is fixed to the left rear end of the engine hood, and the movable member of the right engine hood hinge device is fixed to the right rear end of the engine hood. The engine hood hinge device is provided with two along the left-right direction of the vehicle, and the movable member of the left engine hood hinge device is fixed to the left rear end of the engine hood, and the movable member of the right engine hood hinge device is fixed to the right rear end of the engine hood.