CN216841082U - Engine compartment cover opening device and engine compartment cover opening system - Google Patents

Abstract

The utility model provides an engine compartment cover opening device and an engine compartment cover opening system, wherein the engine compartment cover opening device comprises a lifting mechanism, an unlocking mechanism and an ejecting mechanism, and the lifting mechanism is used for lifting the rear end of an engine compartment cover; when the rear end of the engine compartment cover is lifted, the driving piece is triggered to drive the locking piece to act so as to release the locking of the lock catch; the pop-up mechanism comprises a pop-up piece and a first elastic piece, and when the lock on the lock catch is released, the lock catch can be popped up by the pop-up piece so as to open the front end of the engine compartment cover. Engine compartment cover opening device, when engine compartment cover rear end is by the lifting, triggered through the driving piece and orders about the locking piece action, can remove the locking to engine compartment cover hasp, release the ability and upwards bounce the hasp by the ejection piece through first elastic component, can open the front end of engine compartment cover for engine compartment cover is whole by the lifting, and then is protected different heights by the head of hitting the person.

Description

Engine compartment cover opening device and engine compartment cover opening system

Technical Field

The utility model relates to an automobile parts technical field, in particular to engine compartment cover opening device. And simultaneously, the utility model discloses still relate to an engine compartment cover opening system who has this engine compartment cover opening device.

Background

At present, in a traffic accident of collision between a pedestrian and a vehicle, after the vehicle collides with the leg of the pedestrian, the pedestrian can cause the head to collide against the engine compartment cover by the inertia effect. Due to the large inertia force after the collision, the head of the collided person can deform the engine compartment cover after colliding with the engine compartment cover, so that the head of the collided person collides with a chassis suspension mounting point, a motor and other hard parts below the engine compartment cover. Since the human head is an important and fragile tissue of the human body, the impact of the hard parts on the human head can cause fatal injury to a collided person.

In order to solve the above problems, a lifting mechanism is generally disposed at the rear end of the engine compartment cover, and the rear end of the engine compartment cover is lifted to prevent the head of a collided person from directly colliding with a hard part below the rear end of the engine compartment cover, so as to achieve a protective effect. However, in practical use, the solution of lifting the rear end of the engine compartment cover has limited protection effect, and thus has certain limitation in use.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to an engine compartment cover opening device to improve the protection effect of the engine compartment cover.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an engine compartment cover opening device comprises a lifting mechanism arranged corresponding to the rear end of an engine compartment cover, and an unlocking mechanism and an ejecting mechanism arranged corresponding to the front end of the engine compartment cover, wherein the lifting mechanism is used for lifting the rear end of the engine compartment cover;

the unlocking mechanism comprises a driving piece arranged on the vehicle body, the driving piece is in transmission connection with a locking piece in the engine compartment cover lock, and when the rear end of the engine compartment cover is lifted, the driving piece is triggered to drive the locking piece to act so as to release the locking of a lock catch on the engine compartment cover;

the ejection mechanism comprises an ejection piece rotatably arranged on the vehicle body and a first elastic piece arranged between the ejection piece and the vehicle body, the first elastic piece elastically stores energy along with the abutting of the lock catch when the ejection piece is locked, and when the lock catch is unlocked, the first elastic piece releases energy, so that the lock catch can be upwards ejected by the ejection piece to open the front end of the engine compartment cover.

Further, the ejection mechanism further comprises an auxiliary ejection member rotatably arranged on the vehicle body, and a second elastic member arranged between the auxiliary ejection member and the vehicle body; the auxiliary ejection piece is provided with a lap joint part which can be overlapped on the ejection piece, the lock catch abuts against the ejection piece through the lap joint part and is pressed along with the lap joint part by the lock catch, so that the second elastic piece can elastically store energy, release energy and drive the auxiliary ejection piece to return.

Further, the unlocking mechanism further comprises a third elastic piece arranged between the engine compartment cover lock and the vehicle body, and the third elastic piece is used for applying unlocking force to the locking piece when the driving piece drives the locking piece so as to assist the locking piece in unlocking; and/or a fourth elastic piece connected with the locking piece is arranged in the engine compartment cover lock, and the fourth elastic piece is used for applying locking force to the locking piece so as to keep the locking state of the locking piece.

Furthermore, the unlocking mechanism further comprises a transmission piece in transmission connection between the driving piece and the locking piece, and the driving piece drives the locking piece to rotate through the transmission piece so as to release the locking of the engine compartment cover by the locking piece.

Furthermore, a fifth elastic element is arranged between the transmission element and the vehicle body, the fifth elastic element drives the transmission element to push along with the driving element so as to elastically store energy, and the fifth elastic element releases energy to drive the transmission element to return.

Furthermore, the engine compartment cover lock is provided with an opening for the lock catch to enter and exit, and a first locking groove and a second locking groove which are communicated with the opening, the lock catch in the locking state is positioned in the first locking groove, and the lock catch which bounces upwards enters the second locking groove and is blocked in the second locking groove.

Further, the lifting mechanism comprises a hinge lifting assembly and a jacking assembly; the hinge lifting assembly is provided with a first hinge arm and a second hinge arm which are hinged to each other, and a locking piece which is rotatably arranged on the first hinge arm, the first hinge arm is hinged to the rear end of the engine compartment cover, the second hinge arm is hinged to the vehicle body, and the locking piece is used for locking the first hinge arm on the engine compartment cover; the jacking assembly is arranged on the automobile body and corresponds to the locking piece, and the jacking assembly can sequentially push the locking piece to unlock the first hinge arm and push the first hinge arm to rotate so as to lift the rear end of the engine compartment cover.

Further, a sixth elastic member is provided between the locking member and the first hinge arm, and the sixth elastic member is configured to apply a locking force to the locking member to lock the first hinge arm to the engine compartment cover.

Further, the hinge lifting assembly is also provided with a support part movably connected between the vehicle body and the first hinge arm; the support piece can be stretched and contracted along with the rotation of the first hinge arm, and is used for applying a supporting force to the first hinge arm so as to keep the rear end of the engine compartment cover in a lifting state.

Furthermore, two ends of the supporting piece are movably connected with the vehicle body and the first hinge arm through spherical hinge structures respectively.

Further, the second hinge arms are hinged between the first hinge arm and the vehicle body.

Furthermore, the first hinge arm is provided with a support portion for supporting the rear end of the engine compartment cover, and the rear end of the engine compartment cover is supported by the support portion and can be sprung upward relative to the first hinge arm.

Compared with the prior art, the utility model discloses following advantage has:

engine compartment cover opening device, when engine compartment cover rear end is by the lifting, triggered through the driving piece and orders about the locking piece action, can remove the locking to engine compartment cover upper lock catch to release can and upwards bounce the hasp by the ejecting piece through first elastic component, can open the front end of engine compartment cover, make engine compartment cover wholly by the lifting, and then can make engine compartment cover protect the person's that is hit head of different heights, thereby do benefit to the guard effect who improves engine compartment cover.

In addition, supplementary setting of ejecting and second elastic component does benefit to and further improves the effect of bounceing of ejecting to the hasp behind the unblock. The third elastic piece is favorable for unlocking the locking piece, and the fourth elastic piece is favorable for improving the locking effect of the locking piece in use. Through setting up the driving medium, do benefit to and will realize the transmission between driving piece and the locking piece and be connected. And the arrangement of the fifth elastic element is beneficial to improving the return of the transmission element. The first locking groove is beneficial to locking the lock catch, and the second locking groove can prevent the bounced lock catch from being separated, so that the engine compartment cover is prevented from being completely opened.

In addition, the jacking assembly is favorable for releasing the locking of the locking piece on the rotation of the first hinge arm, and can push the first hinge arm to rotate so as to lift the rear end of the engine compartment cover, thereby having better using effect. The sixth elastic piece is arranged to be beneficial to improving the locking effect of the locking piece and returning after the locking is released. The support can facilitate maintaining the lifted state of the engine compartment cover. And the two ends of the supporting piece are connected with the vehicle body and the first hinge arm through the spherical hinge structure, so that the use flexibility of the supporting piece is improved. The two second hinge arms contribute to improved stability in use. And the arrangement of the supporting part is favorable for bouncing the rear end of the engine compartment cover, so that the protection effect of the engine compartment cover is further improved.

In addition, another object of the present invention is to provide an engine compartment cover opening system, which includes the engine compartment cover opening device as described above, further including a control unit, and a collision detection unit disposed at the front end of the vehicle body; the control unit is connected with the collision detection unit and the engine compartment cover opening device, and when the collision detection unit detects that collision occurs, the control unit opens the engine compartment cover through the engine compartment cover opening device.

Engine compartment cover opening system, the control unit is when collision detecting element detects the emergence collision, opens engine compartment cover through engine compartment cover opening device is automatic to do benefit to the injury to the person's head that is hit when reducing the collision, and have better protecting effect.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of an engine compartment cover opening device according to a first embodiment of the present invention in a closed state;

fig. 2 is a schematic structural view of an engine compartment cover opening device according to a first embodiment of the present invention in an open state;

fig. 3 is a schematic structural view of the engine compartment cover lock and the lock catch in a locked state according to the first embodiment of the present invention;

fig. 4 is a schematic structural diagram of an engine compartment cover lock according to a first embodiment of the present invention at a first viewing angle;

fig. 5 is a schematic structural diagram of the engine compartment cover lock according to the first embodiment of the present invention at a second viewing angle;

fig. 6 is a schematic structural diagram of the engine compartment cover lock according to the first embodiment of the present invention at a third viewing angle;

fig. 7 is a schematic view of an internal structure of an engine compartment cover lock according to a first embodiment of the present invention;

fig. 8 is a schematic partial structural view of an engine compartment cover lock according to a first embodiment of the present invention;

fig. 9 is a schematic structural diagram of a latch hook according to a first embodiment of the present invention;

fig. 10 is a schematic structural view of an ejecting member and an auxiliary ejecting member according to a first embodiment of the present invention;

fig. 11 is a schematic structural view of a lifting mechanism according to a first embodiment of the present invention at a first viewing angle;

fig. 12 is a schematic structural view of the lifting mechanism according to the first embodiment of the present invention at another viewing angle;

fig. 13 is a schematic structural view of a supporting member according to a first embodiment of the present invention;

fig. 14 is a schematic structural view of an engine compartment cover opening system according to a second embodiment of the present invention.

Description of reference numerals:

1. an engine compartment cover; 2. an engine compartment cover lock; 3. a stringer outer panel; 4. a lower hinge plate; 5. a jacking piece; 6. a wire harness;

101. locking; 102. an upper hinge plate; 1021. a limiting hole; 1022. a locking pin; 1023. a support pin; 103. a first hinge arm; 1031. a fifth pivot shaft; 1032. a spacing pin; 1033. the upper part is abutted with the flanging; 104. a locking member; 1041. the lower part is abutted with the flanging; 1042. an eighth pivot axis; 105. a first mounting plate;

201. a first fixing plate; 202. a second fixing plate; 203. a third fixing plate; 204. a latch hook; 2041. an opening; 2042. a first locking groove; 2043. a second locking groove; 2044. a bump; 205. a pop-up member; 2051. inserting the bulge; 206. a first elastic member; 207. a first pivot shaft; 208. a locking member; 2081. a butting arm; 2082. a locking protrusion; 209. an auxiliary ejection member; 2091. overlapping and flanging; 210. a second elastic member; 211. a fourth elastic member; 212. a drive member; 213. unlocking the lock; 214. a fourth pivot shaft; 215. a transmission member; 216. a second pivot shaft; 217. a third elastic member; 218. a fifth elastic member; 219. a third pivot axis;

301. a support member; 3011. a connector; 3012. a ball arm; 3013. a ball socket; 3014. a ball head; 302. a second mounting plate;

401. a second hinge arm; 402. a support; 403. a sixth pivot axis; 404. a seventh pivot axis;

601. a control unit; 602. a collision detection unit.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that if terms indicating directions or positional relationships such as "up", "down", "inside", "back", etc. appear, they are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first" to "eighth," and the like, if any, are also intended for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The embodiment relates to an engine compartment cover opening device which comprises a lifting mechanism arranged corresponding to the rear end of an engine compartment cover 1, an unlocking mechanism and an ejecting mechanism, wherein the unlocking mechanism and the ejecting mechanism are arranged corresponding to the front end of the engine compartment cover 1, and the lifting mechanism is used for lifting the rear end of the engine compartment cover 1.

The unlocking mechanism comprises a driving piece 212 arranged on the vehicle body, the driving piece 212 is in transmission connection with the locking piece 208 in the engine compartment cover lock 2, and when the rear end of the engine compartment cover 1 is lifted, the driving piece 212 is triggered to drive the locking piece 208 to act so as to release the locking of the lock catch 101 on the engine compartment cover 1.

The pop-up mechanism comprises a pop-up piece 205 rotatably arranged on the vehicle body and a first elastic piece 206 arranged between the pop-up piece 205 and the vehicle body, the first elastic piece 206 elastically stores energy along with the abutting of the lock catch 101 when the pop-up piece 205 is locked, and when the lock catch 101 is unlocked, the first elastic piece 206 releases energy, so that the lock catch 101 can be popped up by the pop-up piece 205 to open the front end of the engine compartment cover 1.

Based on the overall description as above, the structure of the engine compartment cover opening device in the closed state and the open state in the present embodiment is shown with reference to fig. 1 and 2. The engine compartment cover lock 2 and the lock catch 101 are respectively arranged at two positions at the bottom of the front end of the engine compartment cover 1 along the width direction of the engine compartment cover 1 at intervals, so that the locking effect of the engine compartment cover 1 on a vehicle body and the stability in use are improved. The lock catch 101 is integrally U-shaped, and is fixed on a first mounting plate 105 at the bottom of the engine compartment cover 1 via a bolt, and a locking space shaped like a Chinese character kou is formed between the first mounting plate 105 and the corresponding lock catch 101. The lock catch 101 has a simple structure, is convenient to arrange and implement, and is favorable for locking cooperation with the engine compartment cover lock 2.

The structure of the hood lock 2 and the striker 101 in the locked state in the present embodiment referring to fig. 3, the latch hook 204 of the hood lock 2 locks the striker 101 in the hood lock 2. The structure of the hood lock 2 is shown in fig. 4 to 6, and the internal structure of the hood lock 2 is shown in fig. 7 and 8. In order to facilitate the fixing of the hood lock 2 to the vehicle body, the hood lock 2 includes a fixing base fixed to the vehicle body, the fixing base including a first fixing plate 201 and a second fixing plate 202 arranged at an interval in the width direction of the hood 1, and a third fixing plate 203 fixed between the first fixing plate 201 and the second fixing plate 202. The structure of the latch hook 204 will be explained first.

As shown in fig. 9, the latch hook 204 is rotatably disposed between the second fixing plate 202 and the third fixing plate 203, and a rear end of the latch hook 204 is rotatably disposed on the fixing base via a first pivot shaft 207 penetrating through the latch hook, the second fixing plate 202 and the third fixing plate 203. The lock hook 204 has an opening 2041 for the lock catch 101 to enter and exit, and a first locking groove 2042 and a second locking groove 2043 which are communicated with the opening 2041, and the lock catch 101 in the locked state is located in the first locking groove 2042, and the lock catch 101 which is bounced upward enters the second locking groove 2043 and is retained in the second locking groove 2043.

The opening 2041 of the lock hook 204 in this embodiment is disposed toward the front end of the vehicle body, the first locking groove 2042 is disposed adjacent to the first pivot 207, and the second locking groove 2043 is communicated with the first locking groove 2042 and disposed adjacent to the opening 2041. Due to the arrangement of the second locking groove 2043, the front end of the locking hook 204 is hook-shaped, and the opening 2041 of the locking hook 204 is arranged downward in the locking state between the locking hook 204 and the lock catch 101.

Here, the first locking groove 2042 and the second locking groove 2043 are simple in structure and convenient to machine. By the blocking of the lock catch 101, which is sprung upward, by the second locking groove 2043, the engine compartment cover 1 can be prevented from being completely opened, and the protective effect of the front end of the engine compartment cover 1 in the open state is further improved.

The structure of the locking member 208 in this embodiment is shown in fig. 7, and the locking member 208 is located at the rear end of the locking hook 204 and is rotatably disposed between the second fixing plate 202 and the second fixing plate 202 via the second pivot shaft 216. The bottom end of the locking piece 208 is formed with a locking protrusion 2082 arranged forward, and a protrusion 2044 capable of being blocked above the locking protrusion 2082 is arranged at the rear end of the locking hook 204 corresponding to the locking protrusion 2082. Through the blocking of the locking protrusion 2082 on the protrusion 2044, the rotation of the locking hook 204 in the unlocking direction can be blocked, and the locking effect is achieved.

To facilitate the locking member 208 to unlock the locking hook 204, in this embodiment, a third elastic member 217 is disposed between the hood lock 2 and the vehicle body, and the third elastic member 217 is configured to apply an unlocking force to the locking member 208 when the driving member 212 drives the locking member 208, so as to assist the locking member 208 to unlock. As shown in fig. 5, the third elastic element 217 is a torsion spring sleeved on the first pivot shaft 207, and two ends of the torsion spring are respectively connected to the locking hook 204 and the fixing seat.

In specific implementation, when the locking hook 204 is locked by the locking member 208, the third elastic member 217 can store energy, and when the locking member 208 releases the locking of the locking hook 204, the third elastic member 217 applies an unlocking force to the locking member 208, and meanwhile, the locking hook 204 is facilitated to rotate upwards, so that the locking of the locking hook 204 is released.

In addition, the locking effect of the locking piece 208 on the locking hook 204 is improved, and in the present embodiment, the engine compartment cover lock 2 is provided with a fourth elastic piece 211 connected with the locking piece 208, and the fourth elastic piece 211 is used for applying a locking force to the locking piece 208 so as to maintain the locking state of the locking piece 208. As shown in fig. 7, the fourth elastic element 211 is a torsion spring sleeved on the second pivot shaft 216, and two ends of the torsion spring are respectively connected to the second fixing plate 202 and the locking element 208. It should be noted that, only one third elastic member 217 and only one fourth elastic member 211 may be provided, and in this case, the use effect can be improved.

The driving member 212 in this embodiment is disposed on the first fixing plate 201 and extends along the length direction of the first fixing plate 201. The driving member 212 may be a product capable of outputting the pushing force in the prior art, for example, the driving member 212 may be a powder pusher or a linear motor in the prior art. When the driving member 212 is a powder pusher as shown in fig. 7, the front end thereof is fixed to the first fixing plate 201, and the rear end of the powder pusher can output a pushing force backward relative to the first fixing plate 201 after explosion due to ignition of powder, thereby facilitating the locking member 208 to release the locking of the locking hook 204.

In order to facilitate the application of the pushing force output by the driving member 212 to the locking member 208, the unlocking mechanism in this embodiment further includes a transmission member 215 that is drivingly connected between the driving member 212 and the locking member 208, and the driving member 212 drives the locking member 208 to rotate through the transmission member 215, so as to release the locking of the engine compartment cover 1 by the locking member 208.

The transmission member 215 is structured as shown in fig. 8, and the transmission member 215 is rotatably provided between the first fixing plate 201 and the second fixing plate 202 via a third pivot axis 219. The power output end of the driving element 212 can be tightly connected to the bottom end of the transmission element 215, so that the driving element 212 can transmit the pushing force to the bottom end of the transmission element 215, and the transmission element 215 is driven to rotate around the third pivot 219.

In order to improve the unlocking effect of the transmission member 215 on the locking member 208, the locking member 208 is provided with an abutting arm 2081 abutting against the top end of the transmission member 215, the abutting arm 2081 in the initial state abuts against the top of the transmission member 215, and when the transmission member 215 is driven to rotate by the pushing force, the locking member 208 is driven to rotate towards the unlocking direction by pushing the abutting arm 2081, so that the locking of the locking hook 204 is released. The lock catch 101 can now be disengaged from the first locking groove 2042.

In addition, a fifth elastic element 218 is disposed between the transmission element 215 and the vehicle body, the fifth elastic element 218 elastically accumulates energy as the driving element 212 drives the transmission element 215 to push, and the transmission element 215 can be driven to return by releasing energy of the fifth elastic element 218. In an embodiment, the fifth elastic element 218 may also be a torsion spring sleeved on the third pivot axis 219, and at this time, two ends of the torsion spring are respectively connected to the transmission element 215 and the first fixing plate 201.

The structure of the eject mechanism in this embodiment is shown in fig. 5, 8, and 9. The top of the eject member 205 is rotatably disposed between the first fixing plate 201 and the second fixing plate 202 via the fourth pivot shaft 214, and the bottom end of the eject member 205 is located at the rear end of the fixing base in the initial state. The first elastic member 206 is a tension spring having two ends respectively connected to the bottom end of the eject member 205 and the front end of the first fixing plate 201. The lock catch 101 locked in the lock hook 204 can press against the front side of the ejector 205, so that the tension spring is stretched to store energy, and when the lock hook 204 releases the lock on the lock catch 101, the ejector 205 is driven to rotate by releasing the stored energy, and the lock catch 101 disengaged from the first lock groove 2042 is ejected by the front side of the ejector 205, so that the lock catch 101 enters the second lock groove 2043, and the front end of the engine compartment cover 1 is opened.

To further enhance the use effect of the pop-up mechanism, the pop-up mechanism further includes an auxiliary pop-up member 209 rotatably disposed on the vehicle body, and a second elastic member 210 disposed between the auxiliary pop-up member 209 and the vehicle body. The auxiliary ejecting part 209 is provided with a lap part capable of lapping on the ejecting part 205, the latch 101 abuts against the ejecting part 205 through the lap part, and the lap part is abutted against the latch 101, so that the second elastic part 210 can elastically store energy, and the second elastic part 210 can release energy to drive the auxiliary ejecting part 209 to return.

As shown in fig. 5, 8 and 9, the top of the auxiliary ejecting member 209 is also rotatably disposed on the fourth pivot shaft 214. The overlapping portion is specifically an overlapping flange 2091 formed at the front side of the auxiliary ejecting member 209, and the overlapping flange 2091 is located at the side of the ejecting member 205 facing the lock catch 101, so as to be pressed by the lock catch 101 locked in the first locking groove 2042. The second elastic member 210 is a torsion spring sleeved on the fourth pivot 214, and one end of the torsion spring is connected to the auxiliary ejecting member 209, and the other end is connected to the first fixing plate 201. Through the arrangement of the second elastic member 210, the auxiliary ejecting member 209 is favorable to return, and at the same time, the first elastic member 206 is favorable to cooperate with the lock catch 101 to eject.

In addition, the ejection member 205 is further provided with an insertion protrusion 2051 passing through the overlap flange 2091, so as to improve the matching effect between the ejection member 205 and the auxiliary ejection member 209 and the stability in use.

In this embodiment, to facilitate the unlocking of the locking member 208 using the wire, as shown in fig. 7 and 8, an unlocking member 213 connected to the wire is further rotatably provided on the second pivot shaft 216. The contact arm 2081 contacts the unlocking member 213, and the unlocking member 213 can rotate under the pulling force of the pulling wire, and the locking member 208 is driven to rotate in the direction of releasing the locking by the contact arm 2081, so that the locking of the locking hook 204 is released, and the front end of the engine compartment cover 1 is manually opened.

In order to further improve the use effect of the unlocking unit 213, a seventh elastic member 220 is further sleeved on the second pivot shaft 216, and both ends of the seventh elastic member are respectively connected between the body and the unlocking unit 213 to apply a returning force to the unlocking unit 213. In one embodiment, as shown in fig. 6, the seventh elastic member 220 is also a torsion spring, and two ends of the torsion spring are respectively connected to the unlocking member 213 and the second fixing plate 202. The torsion spring can elastically store energy in the process that the unlocking piece 213 rotates to unlock, and then can drive the unlocking piece 213 to return.

The lifting mechanism in this embodiment may adopt a mature structure that can lift the rear end of the engine compartment cover 1 in the prior art, as long as the rear end of the engine compartment cover 1 can be lifted. For example, in the present embodiment, an exemplary structure of the lifting mechanism is shown in fig. 1, fig. 2, and fig. 11 and fig. 12. The lifting mechanisms are also two arranged at the rear end of the engine compartment cover 1 at intervals along the width direction of the engine compartment cover 1 so as to improve the lifting effect on the rear end of the engine compartment cover 1 and the stability in use.

The lifting mechanism in this embodiment comprises a hinge lifting assembly having a first hinge arm 103 and a second hinge arm 401 hingedly connected, and a lock 104 rotatably disposed on the first hinge arm 103, and a jacking assembly. And the first hinge arm 103 is hinged to the rear end of the engine compartment cover 1, the second hinge arm 401 is hinged to the vehicle body, and the locking member 104 is used for locking the first hinge arm 103 to the engine compartment cover 1.

The jacking assembly is arranged on the vehicle body and arranged corresponding to the locking piece 104, and the jacking assembly can sequentially push the locking piece 104 to release the locking of the first hinge arm 103 and push the first hinge arm 103 to rotate so as to lift the rear end of the engine compartment cover 1.

As shown in fig. 11 and 12, an upper hinge plate 102 is provided on the outside of the rear end of the engine compartment cover 1, and a lower hinge plate 4 is provided on the vehicle body. The front end of the first hinge arm 103 is rotatably disposed on the upper hinge plate 102 via a fifth pivot 1031, the number of the second hinge arms 401 is two, the top ends of the two second hinge arms 401 are movably connected to the rear end of the first hinge arm 103 via a sixth pivot 403, and the bottom ends of the two second hinge arms 401 are movably connected to the lower hinge plate 4 via a seventh pivot 404. The two second hinge arms 401 are provided to improve the stability in use, and of course, the number of the second hinge arms 401 can be increased or decreased according to specific use requirements.

The locking member 104 is rotatably disposed inside the first hinge arm 103 via the eighth pivot shaft 1042, a protruding locking pin 1022 is disposed inside the first hinge arm 103, a locking groove is disposed on the locking member 104, and the locking member 104 is hooked on the locking pin 1022 through the locking groove to lock the first hinge arm 103 to the upper hinge plate 102.

In order to further improve the locking effect of the locking member 104, in the present embodiment, a sixth elastic member is provided between the locking member 104 and the first hinge arm 103, and the sixth elastic member is used to apply a locking force to the locking member 104 to lock the first hinge arm 103 to the engine compartment cover 1. The sixth elastic member is a torsion spring sleeved on the eighth pivot shaft 1042, and two ends of the torsion spring are respectively connected with the locking member 104 and the first hinge arm 103. Under the action of the torsion spring, the locking groove on the locking member 104 remains locked in hooking engagement with the locking pin 1022.

The jacking assembly in the embodiment comprises a jacking part 5 fixed on the lower hinge plate 4 through a bracket 402 on the inner side of the lower hinge plate 4, and the jacking part 5 extends along the height direction of the vehicle body. And the top end of the lifting member 5 constitutes a power output end thereof and is disposed corresponding to the bottom of the locking member 104 so as to apply an unlocking force for unlocking the locking member 208.

As shown in fig. 12, in order to improve the unlocking effect of the jacking member 5 on the locking member 104, a lower abutting flange 1041 is provided at the bottom of the locking member 104, and an upper abutting flange 1033 is provided on the first hinge arm 103 corresponding to the lower abutting flange 1041. And the upper abutment bead 1033 and the lower abutment bead 1041 in the locked state are arranged at an interval up and down. The power output end of the jacking piece 5 can push upwards and downwards to abut against the flange 1041, so that the locking piece 104 is driven to rotate, and the locking state between the locking groove and the locking pin 1022 is released. After the lower abutting flange 1041 abuts against the upper abutting flange 1033, the first hinge arm 103 which is unlocked can be driven to rotate upwards along with the continuous upward pushing of the top end of the jacking piece 5. The two second hinge arms 401 rotate with respect to the lower hinge plate 4, thereby rotating the engine compartment cover 1 upward with respect to the vehicle body.

In the present embodiment, the first hinge arm 103 is provided with a support portion for supporting the rear end of the engine hood 1, and the rear end of the engine hood 1 is supported by the support portion so as to be able to be sprung up with respect to the first hinge arm 103. As shown in fig. 12, the support portion employs a support pin 1023 provided at the bottom of the inside of the first hinge arm 103. The first hinge arm 103 can achieve a supporting and bouncing effect of the upper hinge plate 102 by the support pin 1023.

A stopper pin 1032 is further provided on the inner side of the front end of the first hinge arm 103, and a stopper hole 1021 is provided in the upper hinge plate 102. The stopper pin 1032 is disposed through the stopper hole 1021. When the engine compartment cover 1 bounces upward, the limiting pin 1032 slides in the limiting hole 1021, and the limiting hole 1021 can limit the bounced limiting pin 1032, so that damage to the head of a collided person due to the fact that the lifting amplitude of the rear end of the engine compartment cover 1 is too large can be prevented, and the protection effect of the engine compartment cover 1 in an opening state can be improved.

Here, the operation principle of the lifting member 5 is the same as that of the driving member 212, and a linear motor, a powder pusher, or the like may be used. For example, when the jacking member 5 is a powder propeller, the power output end thereof can instantaneously output jacking force.

To further improve the stability of the lifting mechanism after lifting the rear end of the engine compartment cover 1, the hinge lifting assembly in this embodiment further has a support member 301 movably connected between the vehicle body and the first hinge arm 103. The support piece 301 is capable of expanding and contracting with the rotation of the first hinge arm 103, and the support piece 301 serves to apply a supporting force to the first hinge arm 103 to maintain the lifted state of the rear end of the hood 1.

In a preferred embodiment, the two ends of the supporting member 301 are movably connected to the vehicle body and the first hinge arm 103 through a ball joint structure. As shown in fig. 11 and 12 in combination, the bottom end of the stay 301 is connected to the second mounting plate 302 on the top of the side member outer panel 3 on the vehicle body via a ball hinge structure, the top end of the stay 301 is connected to the first hinge arm 103 via a ball hinge structure, and the stay 301 is located on the front side of the two second hinge arms 401. The second mounting plate 302 can be formed by stamping and connected to the outer stringer plate 3 by bolts, so as to meet the strength requirement of the supporting member 301 in use.

In detail, as shown in fig. 13, two ends of the supporting member 301 are respectively provided with a connecting head 3011 having a ball socket 3013, and a ball arm 3012 having a ball 3014 is provided on each of the second mounting plate 302 and the first hinge arm 103 corresponding to the two ends of the supporting member 301. When the support 301 extends or contracts, each ball 3014 and each ball arm 3012 can move freely in the corresponding ball socket 3013. In specific implementation, the ball socket 3013 may be a ball socket 3013 with two oblong ends, the ball head 3014 is adapted to the bottom of the ball socket 3013, the mounting hole of the ball socket 3013 is oblong, and specifically, the specification of the ball socket 3013 may be set according to the specification of the ball 3014, as long as a space for the ball arm 3012 to move freely is not provided for the ball arm 3012 when the support 301 extends and retracts, which is beneficial to improving the effect of the support 301 for rapidly supporting the lifted engine compartment cover 1.

During specific implementation, the supporting member 301 can adopt a gas spring in the prior art, and has a simple structure, is convenient to arrange and implement, and has a good supporting effect. Of course, besides the gas spring, the supporting member 301 may also be another product capable of maintaining its length after being extended or retracted in the prior art.

Engine compartment cover opening device, when engine compartment cover 1 rear end was lifted, triggered through driving piece 212 and ordered about the action of locking piece 208, can remove the locking to engine compartment cover 1 upper lock catch 101, and release the ability and upwards bounce lock catch 101 by ejection piece 205 through first elastic component 206, can open the front end of engine compartment cover 1, make engine compartment cover 1 whole by the lifting, and then can make engine compartment cover 1 protect by the head of person that hits to different heights, thereby do benefit to the guard effect who improves engine compartment cover 1.

Example two

The present embodiment relates to an engine compartment cover opening system, including the engine compartment cover opening device in the first embodiment, further including a control unit 601, and a collision detection unit 602 disposed at a front end of a vehicle body. The control unit 601 is connected to the collision detecting unit 602 and the hood opening device, and the control unit 601 opens the hood 1 by the hood opening device when the collision detecting unit 602 detects a collision.

The Control Unit 601 in the present embodiment is a core Control part of the entire hood opening system, and may adopt an existing ECU (Electronic Control Unit for short). The control unit 601 is connected to the collision detecting unit 602 via the wire harness 6 to receive the collision force detected by the collision detecting unit 602. A preset collision threshold is stored in the control unit 601, and when the collision force received by the control unit 601 is greater than the preset collision threshold, it indicates that a collision occurs, and at this time, the engine compartment cover 1 needs to be opened by the engine compartment cover opening device.

When the collision force received by the control unit 601 is smaller than the preset collision threshold, it indicates that no collision has occurred, and at this time, it is not necessary to open the engine compartment cover 1. Here, the preset collision threshold may be set according to a specific use requirement.

The collision detection unit 602 preferably employs a pressure sensor or a collision force sensor in the related art, both of which are mature in product and have high detection accuracy for collision force. In particular, the collision detection unit 602 is disposed on the front bumper to facilitate detection of collision force. Preferably, the collision detecting unit 602 is a plurality of units arranged on the front bumper to further improve the detection accuracy and effect of the collision force detecting unit on the collision force.

The control unit 601 is connected to the driving member 212 and the jack 5 via the wire harness 6, respectively, and when the collision detection unit 602 detects the occurrence of a collision, the control unit 601 sends activation signals to the driving member 212 and the jack 5, respectively. The driving member 212 opens the front end of the engine compartment cover 1 by the cooperation of the unlocking mechanism and the ejecting mechanism, and at the same time, the jacking member 5 can sequentially push the locking member 104 to unlock the first hinge arm 103 and push the first hinge arm 103 to rotate to lift the rear end of the engine compartment cover 1, so that the engine compartment cover 1 is integrally lifted.

In the engine compartment cover opening system of the embodiment, when the collision detection unit 602 detects a collision, the control unit 601 automatically opens the engine compartment cover 1 through the engine compartment cover opening device, so that the engine compartment cover 1 is conveniently and integrally lifted in time, and the head of a person to be collided with different heights is protected through the engine compartment cover 1 when the front end is collided, so that a better protection effect is achieved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. An engine compartment cover opening device, characterized in that:

the lifting mechanism is arranged corresponding to the rear end of the engine compartment cover (1), and the unlocking mechanism and the ejecting mechanism are arranged corresponding to the front end of the engine compartment cover (1), and the lifting mechanism is used for lifting the rear end of the engine compartment cover (1);

the unlocking mechanism comprises a driving piece (212) arranged on a vehicle body, the driving piece (212) is in transmission connection with a locking piece (208) in an engine compartment cover lock (2), and when the rear end of the engine compartment cover (1) is lifted, the driving piece (212) is triggered to drive the locking piece (208) to act so as to release the locking of a lock catch (101) on the engine compartment cover (1);

the ejection mechanism comprises an ejection piece (205) rotatably arranged on the vehicle body and a first elastic piece (206) arranged between the ejection piece (205) and the vehicle body, the first elastic piece (206) elastically stores energy along with the abutting of the lock catch (101) when the ejection piece (205) is locked, and when the lock catch (101) is unlocked, the first elastic piece (206) releases energy, the lock catch (101) can be upwards ejected by the ejection piece (205), and the front end of the engine compartment cover (1) is opened.

2. The engine compartment cover opening device according to claim 1, wherein:

the ejection mechanism further comprises an auxiliary ejection member (209) rotatably provided on the vehicle body, and a second elastic member (210) provided between the auxiliary ejection member (209) and the vehicle body;

the auxiliary ejection piece (209) is provided with a lapping part capable of lapping on the ejection piece (205), the lock catch (101) abuts against the ejection piece (205) through the lapping part and is pressed along with the lapping part, the lock catch (101) abuts against the ejection piece (205), so that the second elastic piece (210) can elastically store energy, and the second elastic piece (210) releases energy and can drive the auxiliary ejection piece (209) to return.

3. The engine compartment cover opening device according to claim 1, wherein:

the unlocking mechanism further comprises a third elastic piece (217) arranged between the engine compartment cover lock (2) and the vehicle body, and the third elastic piece (217) is used for applying unlocking force to the locking piece (208) when the driving piece (212) drives the locking piece (208) so as to assist the unlocking of the locking piece (208); and/or the presence of a gas in the gas,

the engine compartment cover lock (2) is provided with a fourth elastic piece (211) connected with the locking piece (208), and the fourth elastic piece (211) is used for applying locking force to the locking piece (208) so as to keep the locking state of the locking piece (208).

4. The engine compartment cover opening device according to claim 1, wherein:

the unlocking mechanism further comprises a transmission piece (215) which is in transmission connection between the driving piece (212) and the locking piece (208), wherein the driving piece (212) drives the locking piece (208) to rotate through the transmission piece (215), so that the locking of the engine compartment cover (1) by the locking piece (208) is released.

5. The engine compartment cover opening device according to claim 4, wherein:

a fifth elastic element (218) is arranged between the transmission element (215) and the vehicle body, the fifth elastic element (218) drives the transmission element (215) to push along with the driving element (212) so as to elastically store energy, and the transmission element (215) can be driven to return by releasing energy of the fifth elastic element (218).

6. The engine compartment cover opening device according to claim 1, characterized in that:

the engine compartment cover lock (2) is provided with an opening (2041) for the lock catch (101) to enter and exit, a first locking groove (2042) and a second locking groove (2043) communicated with the opening (2041), the lock catch (101) in a locking state is located in the first locking groove (2042), and the lock catch (101) which is bounced upwards enters the second locking groove (2043) and is blocked in the second locking groove (2043).

7. The engine compartment cover opening device according to any one of claims 1 to 6, wherein:

the lifting mechanism comprises a hinge lifting assembly and a jacking assembly;

the hinge lifting assembly is provided with a first hinge arm (103) and a second hinge arm (401) which are connected in a hinged mode, and a locking piece (104) which is rotatably arranged on the first hinge arm (103), the first hinge arm (103) is connected with the rear end of the engine compartment cover (1) in a hinged mode, the second hinge arm (401) is connected with the vehicle body in a hinged mode, and the locking piece (104) is used for locking the first hinge arm (103) on the engine compartment cover (1);

the jacking assembly is arranged on the automobile body and corresponds to the locking piece (104), and the jacking assembly can sequentially push the locking piece (104) to unlock the first hinge arm (103) and push the first hinge arm (103) to rotate so as to lift the rear end of the engine compartment cover (1).

8. The engine compartment cover opening device according to claim 7, wherein:

a sixth elastic member is provided between the locking member (104) and the first hinge arm (103), and the sixth elastic member is used for applying a locking force to the locking member (104) to lock the first hinge arm (103) to the engine compartment cover (1).

9. The engine compartment cover opening device according to claim 7, wherein:

the hinge lifting assembly further has a support (301) movably connected between the vehicle body and the first hinge arm (103);

the support piece (301) can stretch and contract along with the rotation of the first hinge arm (103), and the support piece (301) is used for applying a supporting force to the first hinge arm (103) so as to keep the lifting state of the rear end of the engine compartment cover (1).

10. The engine compartment cover opening device according to claim 9, characterized in that:

two ends of the supporting piece (301) are movably connected with the car body and the first hinge arm (103) through spherical hinge structures respectively.

11. The engine compartment cover opening device according to claim 7, wherein:

the second hinge arms (401) are two hinged between the first hinge arm (103) and the vehicle body.

12. The engine compartment cover opening device according to claim 7, characterized in that:

the first hinge arm (103) is provided with a support portion for supporting the rear end of the engine compartment cover (1), and the rear end of the engine compartment cover (1) is supported by the support portion and can be sprung upward relative to the first hinge arm (103).

13. An engine compartment cover opening system characterized in that:

the engine compartment cover opening device according to any one of claims 1 to 12, further comprising a control unit (601), and a collision detecting unit (602) provided at a front end of a vehicle body;

the control unit (601) is connected to the collision detection unit (602) and the hood opening device, and the control unit (601) opens the hood (1) by the hood opening device when the collision detection unit (602) detects a collision.

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