A car logo device with trigger protection function

Abstract

This invention belongs to the field of automotive technology, specifically disclosing a car emblem device with a trigger protection function. It includes a guide rail, a car emblem assembly slidably mounted on the guide rail, a clutch assembly, and a drive assembly. The clutch assembly includes a clutch seat and a rotating connecting rod, which is hinged to the car emblem assembly. One end of the rotating connecting rod abuts against the lower end of the car emblem assembly, and the other end is connected to the clutch seat. When in contact, the drive assembly supports the car emblem assembly to stand upright or drives the car emblem assembly to rise or fall. When the car emblem assembly is subjected to external force, it triggers the rotating connecting rod to rotate, causing the clutch seat to move and separate from the drive assembly. The car emblem assembly then descends along the guide rail under force. Restarting the drive assembly restores contact with the clutch seat. This invention utilizes an external force acting on the emblem to trigger a protection mechanism that separates the clutch assembly from the drive assembly, causing the emblem to retract and reducing the risk of damage or theft.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology, specifically relating to a vehicle emblem device with trigger protection function. Background Technology

[0002] With the continuous upgrading of automotive brand image building and user experience demands, the ceremonial design of car logos has become one of the key elements in automotive brand design. A retractable, upright car logo on the hood significantly enhances vehicle recognition and a sense of luxury, while also providing a unique visual highlight for brand differentiation. At the same time, given the increasing emphasis on personal safety, car logos are required to avoid causing injury to occupants under all circumstances. Chinese and EU automotive safety regulations have established strict rules regarding external protrusions on vehicles, requiring that external parts and structures be able to expand, detach, or bend under rated external forces, and strictly limiting the height of the remaining portion after deformation.

[0003] Currently, automotive hood ornaments on the market employ various structures to meet requirements in terms of safety, appearance, and performance. Existing automotive hood ornament structures mainly fall into two categories: One method involves using a retractable vehicle emblem mechanism to lift the emblem. These emblems typically rely on a motor drive, combined with a transmission structure such as gears, linkages, or slide rails to achieve the lifting operation. For example, patent application CN202311347464.5, entitled "A Quickly Retractable Vehicle Emblem Based on a Servo Motor and Its Control Method," describes a design where, when the vehicle is open, a command to lower the emblem retracts it into the engine compartment, thus preventing external forces and preventing theft. However, this design still has some problems: if the owner forgets to issue a command to lower the emblem before closing the vehicle, the emblem will remain raised, locked in the raised position by the motor. If external force (such as shaking, theft attempts, or accidental collisions) acts on the emblem, it is easily damaged or stolen due to the lack of an effective triggering protection mechanism.

[0004] Another type of signpost uses a force-flipping design. The idea behind this design is that when the signpost is subjected to external force, it flips to avoid injury. However, this design also has shortcomings: some people still use the remaining part after the signpost flips for inappropriate behavior, and due to the lack of an effective triggering protection mechanism, the signpost remains vulnerable to damage or theft. Summary of the Invention

[0005] The purpose of this invention is to provide a vehicle emblem device with a trigger protection function, which reduces the risk of the emblem being damaged or stolen by external forces by utilizing the trigger protection mechanism.

[0006] The objective of this invention is achieved through the following technical solution: a car emblem device with a trigger protection function is provided, comprising a guide rail, a car emblem assembly slidably disposed on the guide rail, a clutch assembly, and a drive assembly. The clutch assembly includes a clutch seat and a rotating connecting rod, which is hinged to the car emblem assembly. One end of the rotating connecting rod abuts against the lower end of the car emblem assembly, and the other end is connected to the clutch seat. When in contact, the drive assembly supports the car emblem assembly to stand up or drives the car emblem assembly to rise or fall. When the car emblem assembly is subjected to external force, it triggers the rotating connecting rod to rotate, causing the clutch seat to move and separate from the drive assembly. The car emblem assembly then descends along the guide rail under force. Restarting the drive assembly restores contact with the clutch seat.

[0007] Preferably, the logo assembly includes a stand, a sliding seat, and a support rod. The stand is mounted on the sliding seat, which is slidably mounted on a guide rail. The upper end of the support rod is connected to the stand, and the lower end abuts against the rotating connecting rod.

[0008] Preferably, the sliding seat has sliding platforms on both outer sides, and the sliding platforms have sliding grooves that mate with the outer side of the guide rail.

[0009] Preferably, the clutch assembly further includes a first spring, one end of which abuts against the sliding seat and the other end of which is connected to the clutch seat.

[0010] Preferably, the sliding seat has a slot that mates with one end of the first spring, and the clutch seat has a locking plate that mates with the inner diameter of the other end of the first spring.

[0011] Preferably, the lower end face of the clutch seat is provided with a sliding groove, and a left arc groove and a right arc groove are provided at both ends of the sliding groove.

[0012] Preferably, the drive assembly includes a drive source, a drive arm, and a moving part. The drive arm is installed at the output end of the drive source, and the moving part is installed at the end of the drive arm away from the drive source. The drive source drives the moving part to move relative to the sliding groove through the drive arm, so as to support or raise / lower the clutch seat.

[0013] Preferably, the logo assembly further includes a fixing seat, a first disc, and a second disc. The fixing seat is fixedly installed on the sliding seat. The logo passes through the fixing seat and is connected to the first disc. The lower end face of the second disc is connected to the support rod, and the upper end face is connected to the first disc. The outer diameter of the first disc is smaller than the outer diameter of the second disc.

[0014] Preferably, the logo assembly further includes a second spring and a support tube, the support tube being mounted on the inner wall of the sliding seat, the lower end of the second spring abutting against the support tube, and the upper end abutting against the lower surface of the second disc.

[0015] Preferably, it also includes a base and a cover plate assembly. The sliding seat is provided with a reversing linkage groove. The cover plate assembly includes a cover plate, a four-bar linkage mechanism and a transmission rod mechanism. The four-bar linkage mechanism is installed between the cover plate and the base. One end of the transmission rod mechanism is slidably installed in the linkage groove, and the other end is hinged to the four-bar linkage mechanism. When the sliding seat rises / falls, the transmission rod mechanism moves along the linkage groove. When reversing direction, the transmission rod mechanism rotates and drives the four-bar linkage mechanism to swing. The swing can drive the cover plate to move to the raised state or the lowered state.

[0016] Because of the adoption of the above technical solution, the present invention has the following advantages: When an external force (such as human shaking, theft attempts, or accidental collision) is applied to the sign, the protection mechanism is triggered, which separates the clutch component from the drive component, causing the sign to retract and reducing the risk of the sign being damaged or stolen. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is an explosion diagram of a vehicle emblem device with trigger protection function according to the present invention; Figure 2 A schematic diagram of the assembly of the car logo components; Figure 3 A schematic diagram of the guide rail limiting component and the tapered protrusion; Figure 4 A schematic diagram showing the installation of the sliding seat and clutch assembly; Figure 5 This is a schematic diagram of the driving component; Figure 6 This is a front view of the clutch seat; Figure 7 This is a side view of the clutch seat; Figure 8 A schematic diagram showing the positions of the drive assembly and clutch assembly when the bearing is at the top dead center position; Figure 9 A schematic diagram showing the positions of the drive assembly and clutch assembly when the target has descended to the middle position; Figure 10 A schematic diagram showing the positions and structures of the drive assembly and clutch assembly when the target descends to the lower dead center position; Figure 11 A schematic diagram showing the clutch assembly supporting the drive assembly; Figure 12 This is a schematic diagram showing the separation of the drive assembly and the clutch assembly; Figure 13 This is an enlarged view of point A; Figure 14An exploded view of the car logo components; Figure 15 This is a bottom view of the mounting bracket; Figure 16 A schematic diagram of a mounting base for four spherical cylinders; Figure 17 This is a diagram showing the cover in its stowed position. Figure 18 This is a schematic diagram showing the cover plate in the extended position.

[0019] Figure label: 1- Guide rail, 11- Tension spring, 12- Hanging lug, 13- Limiting component, 131- Rubber layer, 14- Conical protrusion; 2- Car emblem assembly, 21- Stand emblem, 211- Limiting boss, 22- Sliding seat, 221- Mounting cavity, 222- Slide groove, 223- Slide table, 224- Slot hole, 225- Guide groove, 226- Linkage slide groove, 23- Support rod, 24- Fixing seat, 241- Through hole, 242- Positioning mounting post, 243- Ball bearing, 25- First disc, 251- Ball head cylinder, 252- Groove, 26- Second disc, 27- Second spring, 28- Support tube platform; 3- Clutch assembly, 31- Clutch seat, 311- Clamping platform, 312- Sliding groove, 313- Second end face, 314- Left arc groove, 315- Right arc groove, 316- Arc surface, 317- First end face, 32- Rotating connecting rod, 321- Spherical surface, 33- First spring, 34- Translation platform, 341- Guide rib; 4- Drive assembly, 41- Drive source, 42- Drive arm, 43- Moving part, 431- Coaxial hole, 44- Bushing; 5-Base; 6-Cover plate assembly; 61-Cover plate; 62-Four-bar linkage; 621-First link; 622-Second link; 623-Third link; 624-First link segment; 625-Second link segment; 626-Virtual fourth link; 63-Transmission rod mechanism; 631-First transmission rod; 632-First transmission rod; 633-Roller. Detailed Implementation

[0020] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings.

[0021] Please see Figure 1 , Figure 2 , Figure 11 and Figure 12The system comprises a guide rail 1, a car emblem assembly 2 slidably mounted on the guide rail 1, a clutch assembly 3, and a drive assembly 4. The clutch assembly 3 includes a clutch seat 31 and a rotating connecting rod 32. The rotating connecting rod 32 is hinged to the car emblem assembly 2, with one end abutting against the lower end of the car emblem assembly 2 and the other end connected to the clutch seat 31. When in contact, the drive assembly 4 supports the car emblem assembly 2 to stand upright or drives the car emblem assembly 2 to rise or fall. When the car emblem assembly 2 is subjected to external force, the rotating connecting rod 32 rotates, causing the clutch seat 31 to move and separate from the drive assembly 4. The car emblem assembly 2 then descends along the guide rail 1 under force. Restarting the drive assembly 4 restores contact with the clutch seat 31. Specifically, the car emblem assembly 2 includes a stand-up emblem 21, a sliding seat 22, and a support rod 23. The stand-up emblem 21 is mounted on the sliding seat 22, which is slidably mounted on the guide rail 1. The upper end of the support rod 23 is connected to the stand-up emblem 21, and the lower end abuts against the rotating connecting rod 32. The car emblem device can be fixed in the front engine compartment of the vehicle. The front engine compartment has an opening for the retraction and extension of the emblem 21. The guide rail 1 is vertically fixed to the front engine compartment by bolts, and the drive assembly 4 is fixed to the front engine compartment by bolts. The emblem assembly 2 is slidably mounted on the guide rail 1. The sliding seat 22 has a mounting cavity 221, in which the support rod 23 and the clutch assembly 3 are disposed. The mounting cavity 221 has sufficient space for the rotating connecting rod 32 to rotate and the clutch seat 31 to move. Using existing technology, the drive assembly 4 is electrically connected to the vehicle control system and can drive the emblem 21 to rise or fall according to the command of the vehicle control system. The height of the rise or fall is already embedded in the vehicle control system. After power failure, the drive assembly 4 has a power failure self-locking function, maintaining the position of the drive assembly before power failure.

[0022] This invention provides a car emblem device with a trigger protection function. After the car owner parks and disconnects the power, there is no need to issue a command to lower the emblem 21. When there is no external force, the drive assembly 4 maintains contact with the clutch seat 31 using its power-off self-locking function. The drive assembly 4 supports the emblem assembly 2 at the upper dead center position (the upper dead center position and the lower dead center position are the positions where the emblem 21 is fully raised / retracted) through the clutch assembly 31, and the emblem 21 is raised and exposed on the vehicle body. When someone shakes or presses down on the emblem 21, the emblem 21 is subjected to downward pressure, which drives the support rod 23 to move downward. The lower end of the support rod 23 presses down on the rotating connecting rod 32, causing the rotating connecting rod 32 to rotate clockwise. The rotation of the rotating connecting rod 32 drives the clutch seat 31 to move backward. The drive assembly 4 remains stationary and separates from the clutch seat 31. The emblem assembly 2 loses the support force of the drive assembly 4 and moves downward along the guide rail 1 to the lower dead center position under its own gravity. The emblem 21 retracts into the front engine compartment. Upon receiving the lifting command, the drive assembly 4 re-engages with the clutch seat 31 and drives the clutch seat 31 to rise to the upper dead center position, thereby raising the emblem 21. Under normal circumstances, the emblem 21 is exposed on the vehicle body, maintaining its brand effect. When subjected to external force, the drive assembly 4 is triggered to disconnect from the clutch assembly 3, and the emblem component 2 descends along the guide rail 1 to the lower dead center position under its own gravity, thus preventing the emblem 21 from being damaged or stolen.

[0023] Furthermore, the guide rail 1 also includes a tension spring 11, the top end of which is fixed to the sliding seat 22, and the bottom end of which is fixed to the lower part of the guide rail 1. Specifically, the sliding seat 22 and the guide rail 1 are each provided with a hanging lug 12, and the two ends of the tension spring 11 are respectively welded or sleeved in the hanging lug 12. When the car emblem component 2 is in the upright state, the tension spring 11 is in the stretched state; when the car emblem component 2 descends, the tension spring 11 provides a downward pulling force to the car emblem component 2, so that the car emblem component 2 descends more quickly under its own weight and pulling force, shortening the descent time of the car emblem component 2, which helps to reduce the risk of the emblem 21 being damaged or stolen.

[0024] Further, please refer to Figure 3 The guide rail 1 also includes a limiting member 13, which is fixedly installed on the lower part of the guide rail 1. Specifically, in coordination with the lower stop position, the limiting member 13 is welded or bolted to the inner wall of the lower part of the guide rail 1, or the limiting member 13 is integrally formed with the guide rail 1, to limit the downward displacement of the sliding seat 22 along the guide rail 1; a rubber layer 131 is provided on the contact surface between the limiting member 13 and the sliding seat 22 to buffer the impact and reduce the collision damage between the sliding seat 22 and the limiting member 13.

[0025] Further, please refer to Figure 2The sliding seat 22 has sliding platforms 223 on both outer sides, and the sliding platforms 223 have sliding grooves 222 that mate with the outer side of the guide rail. Specifically, the sliding platforms 223 are integrally formed with the sliding seat 22 or fixed to the sliding seat 22 by welding or bolts. The sliding platforms 223 have sliding grooves 222 that match the shape of the side wall of the guide rail 1. Preferably, the lower part of both sides of the guide rail 1 has conical protrusions 14 that mate with the sliding grooves 222. When the sliding seat 22 moves up and down along the guide rail 1, the sliding grooves 222 have a guiding function. On both sides of the guide rail 1, there are tapered protrusions 14 that cooperate with the slide groove 222. The size gradually increases from top to bottom. With this structure, the tapered protrusions 14 cooperate with the slide groove 222 to increase friction and buffer the descent speed. Therefore, the slide seat 22 descends quickly at first and then slowly, which does not affect the time for the upright 21 to enter the vehicle body and also helps to reduce damage to the clutch seat 31. When the upright 21 needs to rise at the lower stop position, the drive assembly 4 drives the clutch seat 31 to rise. At the beginning, it rises slowly due to friction. After it separates from the tapered protrusions 14, it rises rapidly. This helps to give the car owner time to observe the surrounding environment when the upright 21 begins to rise, and helps to reduce damage to the parts due to the rapid rise at the beginning.

[0026] Further, please refer to Figure 13 The clutch assembly 3 also includes a first spring 33, one end of which abuts against the sliding seat 22, and the other end against the clutch seat 31. Specifically, when the rotating connecting rod 32 rotates, it causes the clutch seat 31 to move backward. The first spring 33 contracts synchronously to store energy. After the clutch seat 31 disengages from the drive assembly 4, during the descent of the emblem assembly 2, the clutch seat 31 returns to its original horizontal position under the elastic force of the first spring 33, preparing for the next ascent. When the emblem 21 is upright, the clutch seat 31 remains extended under the action of the first spring 33, and the drive assembly 4 remains in contact with the clutch seat 31, preventing the emblem 21 from falling down.

[0027] Further, please refer to Figure 13 The sliding seat 22 is provided with a slot 224 that mates with one end of the first spring (33), and the clutch seat 31 is provided with a locking platform 311 that mates with the inner diameter of the first spring 33. Specifically, the inner wall of the sliding seat 22 is provided with a slot 224 extending into the mounting cavity 221, and at least part of the first spring 33 is disposed in the slot 224. The slot 224 is a cylindrical slot, and one end of the first spring 33 abuts against the inner wall of the slot 224. The clutch seat 31 is provided with a locking platform 311 extending inward from the end away from the drive assembly 4. The locking platform 311 is frustoconical, and its outer diameter mates with the inner diameter of the first spring 33. The slot 224 and the locking platform 311 serve to guide the extension and contraction deformation of the first spring 33.

[0028] Further, the drive assembly 4 includes a drive source 41, a drive arm 42, and a moving part 43. The drive arm 42 is mounted on the output end of the drive source 41, and the moving part 43 is mounted on the end of the drive arm 42 away from the drive source 41. The drive source 41 drives the moving part 43 to move relative to the sliding groove 312 via the drive arm 42, thereby supporting or raising / lowering the clutch seat 31. Specifically, the drive arm 42 is a single-arm type, with a simple structure but high power efficiency. Preferably, the drive source 41 is a geared motor with a self-locking function. See Embodiment 1 for details. Figure 5 In one embodiment, the movable component 43 is a roller, and the roller makes rolling contact with the inner wall of the sliding groove 312. The drive assembly 4 also includes a bushing 44. The movable component 43 and the drive arm 42 are provided with a coaxial hole 431. The bushing 44 is inserted into the coaxial hole 431, and the movable component 43 is rotatably mounted on the drive arm 42 by screws or a rotating pin. The movable component 43 makes rolling contact with the lower end face of the clutch seat 31, reducing friction noise and improving the service life of the movable component 43 and the clutch seat 31. In another embodiment, the movable component 43 is a slider, which can be a cylinder or an arc shape, and is welded to the drive arm 42. The contact surface between the slider and the sliding groove 312 is machined into a plane, making surface contact with the sliding groove 312, increasing the supporting contact area with the clutch seat 31.

[0029] Further, please refer to Figure 6 The lower end face of the clutch seat 31 is provided with a sliding groove 312, and a left arc groove 314 and a right arc groove 315 are respectively provided at both ends of the sliding groove 312. When the car emblem assembly 2 is at the upper dead point position, the moving part 43 is located in the left arc groove 314. Even if subjected to external force (such as micro-vibration), the moving part 43 will not move out of the sliding groove 312, improving the stability of the drive assembly 4 supporting the clutch seat 31. In this application, the car emblem assembly descends in two ways: one is a protective descent automatically triggered by external force, such as human shaking, theft attempts, or accidental collisions; the other is a descent triggered by the car owner actively issuing a command to lower the emblem 21. Please refer to Figure 8 to Figure 10When the emblem 21 is in the upright position, and the owner issues a command to lower the emblem 21, the drive source 41 drives the drive arm 42 to rotate downwards. The rotation of the moving part 43 is decomposed into forward translation and downward movement. The clutch seat 31 moves downwards simultaneously. The moving part 43 moves forward along the sliding groove 312 until it reaches the right arc groove 315. At this time, the drive arm 42 is parallel to the clutch seat 31. The drive arm 42 continues to rotate, and the rotation of the moving part 43 is decomposed into backward translation and downward movement. The moving part 43 moves backward along the sliding groove 312 until it reaches the left arc groove 314. At this time, the emblem assembly 2 moves downwards along the guide rail 1 to the lower stop position, completing the lowering command. Conversely, when the emblem 21 receives a command to rise, the process is the opposite of the lowering command. The drive source 41 rotates in the opposite direction and moves along the sliding groove 312. The drive arm 42 rotates upwards, driving the moving part 43 to move along the sliding groove 312 until it reaches the left arc groove 314, realizing the raising of the emblem 21 to the upper stop position. A left arc groove 314 and a right arc groove 315 are provided at both ends of the sliding groove 312, which effectively prevents the moving part 43 from falling out of the sliding groove 312 when it moves, and at the same time improves the stability of the drive assembly 4 supporting the clutch seat 31.

[0030] Please see Figure 7 The upper and lower surfaces of the clutch seat 31 are transitioned by an arc-shaped surface 316. Specifically, the arc-shaped surface 316 matches the rotation trajectory of the moving member 43. When the upright 21 is lowered due to the triggered protection mechanism, the drive arm 42 does not move, and due to the elastic force of the first spring 33, the clutch seat 31 returns to its original horizontal position, and the clutch seat 31 is located in front of and below the moving member 43. When it needs to be erected again, drive 41 can be started. Drive source 41 rotates and drives drive arm 42 to move down. During the downward movement, moving part 43 first contacts arc surface 316. Under the pressure of moving part 43, clutch seat 31 retracts inward until moving part 43 disengages from arc surface 316. Under the action of first spring 33, clutch seat 31 returns to its original horizontal position. At this time, moving part 43 is located directly below left arc groove 314. Drive source 41 rotates in the opposite direction and drive arm 42 rotates upward, driving moving part 43 to move along sliding groove 312 until it returns to left arc groove 314, realizing the raising of the marker 21 to the upper dead point position.

[0031] Further, please refer to Figure 7The clutch seat 31 has a first end face 317 and a second end face 313. The first end face 317 is a plane, and the second end face 313 is an inclined plane. The angle between the second end face 313 and the first end face is not greater than 90°. Specifically, the lower end face of the clutch seat 31 is the second end face 313, which has a sliding groove 312. The side away from the drive assembly 4 extends downward to form a limiting strip. The inner wall of the limiting strip forms the first end face 317, which is a plane, and limits the movement of the moving part 43. Preferably, the angle between the second end face 313 and the first end face is 85°-88°. If the angle is less than 85°, the first end face 317 and the second end face 313 form a V-shape, which will constrain the moving part 43 from disengaging. If the angle is greater than 90°, the moving part 43 is easily affected by special working conditions such as vibration and may disengage from the sliding groove 312. Preferably, the angle is 87°, which makes the disengagement process between the moving part 43 and the clutch seat 31 smooth and limits the movement of the moving part 43 in other directions to the maximum extent. Preferably, the cross-section of the moving part 43 is in the shape of a frustum, and the slope of the frustum is the same as the inclination angle of the second end face 313. The moving part 43 is in full contact with the sliding groove 312, further ensuring that the moving part 43 is not easily affected by working conditions such as vibration and may disengage from the sliding groove 312 during sliding.

[0032] Further, please refer to Figure 4 The clutch assembly 3 also includes a translation stage 34, which is slidably disposed in the sliding seat 22, with one end of the translation stage 34 connected to the clutch seat 31. Specifically, the translation stage 34 is integrally formed with the clutch seat 31 or the translation stage 34 is vertically welded to the end face of the clutch seat 31 away from the drive assembly 4. The two sides of the translation stage 34 extend outward to form guide ribs 341. The sliding seat 22 is provided with guide grooves 225 that cooperate with the guide ribs 341, which have a smooth guiding effect on the telescopic movement of the clutch seat 31. Preferably, the guide groove 225 is inclined downward from the inside to the outside, and the inclination angle is the same as the inclination angle of the second end face 313, so that the engagement and disengagement process between the moving part 43 and the clutch seat 31 is smoother.

[0033] Further, please refer to Figure 13 The lower end of the support rod 23 is a plane, and the contact surface between the rotating connecting rod 32 and the support rod 23 is a spherical surface 321. With the above structure, as the end of the support rod 23 moves downward, it slides along the spherical surface and generates a tangential component force. The tangential component force will efficiently and continuously drive the rotating connecting rod 32 to rotate, improving the smoothness of the rotation of the rotating connecting rod 32.

[0034] Further, please refer to Figure 2 , Figure 4 , Figure 14 , Figure 15 and Figure 16The logo assembly 2 also includes a fixing seat 24, a first disc 25, and a second disc 26. The fixing seat 24 is fixedly installed on the sliding seat 22. The logo 21 passes through the fixing seat 24 and connects to the first disc 25. The lower end face of the second disc 26 is connected to the support rod 23, and the upper end face is connected to the first disc 25. The outer diameter of the first disc 25 is smaller than the outer diameter of the second disc 26. Specifically, the surface of the fixing seat 24 is provided with a through hole 241, and the lower surface is provided with several positioning mounting posts 242. The fixing seat 24 is installed on the sliding seat 22 by screws and positioning mounting posts 242. Under the condition that the second disc 26 does not interfere with the positioning mounting posts 242, the outer diameter of the second disc 26 is as large as possible. The upper end face of the second disc 26 can directly contact the first disc 25, or, using existing technology, the second disc 26 is movably connected to the first disc 25 to ensure that the first disc (25) can transmit force to the second disc (26). The first disc 25 has several spherical cylinders 251 spaced apart along its circumference. The fixing base 24 has spherical bearings 243 that mate with the spherical cylinders 251. The upright marker 21 passes through the through hole 241 and is connected to the first disc 25 by screws. The lower end of the upright marker 21 has a limiting boss 211 spaced apart along its circumference. The first disc 25 has a groove 252 that mates with the limiting boss 211. After assembly, the limiting boss 211 is inserted into the groove 252, effectively preventing the upright marker 21 and the first disc 25 from rotating. Through the contact constraint between the spherical cylinders 251 and the spherical bearings 243, and the limiting boss 211 and the groove 252, the first disc 25 can swing back and forth and left and right while preventing the upright marker 21 from rotating. Preferably, there are two or four spherical cylinders 251, evenly spaced on the circumference of the first disc 25. In use, if the sign 21 is shaken, stolen, or accidentally bumped, the shake will cause the first disc 25 to tilt upwards, applying downward pressure to the second disc 26. Without installation interference, the outer diameters of the first disc 25 and the second disc 26 should be as large as possible, with the outer diameter of the second disc 26 being larger than that of the first disc 25. As long as the first disc 25 tilts slightly, the support rod 23 will produce a downward displacement greater than the tilting height of the first disc 25, thereby improving the sensitivity of the activation trigger protection mechanism.

[0035] Furthermore, the logo assembly 2 also includes a second spring 27 and a support tube 28. The support tube 28 is installed on the inner wall of the sliding seat 22. The lower end of the second spring 27 abuts against the support tube 28, and the upper end abuts against the lower surface of the second disc 26. Specifically, a support rod 23 is sleeved on the second spring 27 and the support tube 28. The support rod 23 limits the deformation of the second spring 27, and the second spring 27 and the support tube 28 guide the lifting and lowering of the support rod 23. In this application, to prevent the logo 21 from swaying due to normal vehicle vibration or wind during driving, a downward movement threshold for the support rod 23 is set. In this embodiment, the distance threshold is 4mm. Only when the distance threshold is exceeded will the clutch seat 31 and the moving part 43 be triggered to separate. If the downward movement distance is within the range of the distance threshold, it cannot be triggered, thereby preventing the clutch seat 31 and the moving part 43 from separating accidentally. The second spring 27 not only provides a reverse force for the downward movement of the support rod 23, but also prevents the clutch seat 31 and the moving part 43 from separating accidentally. The contact width between the moving part 43 and the clutch seat 31 can be calculated by using the distance threshold. Within the distance threshold range, the moving part 43 is in contact with the clutch seat 31. It will only disengage when the distance threshold is exceeded. The width of the moving part 43 helps to prevent the clutch seat 31 and the moving part 43 from separating accidentally.

[0036] Further, please refer to Figure 17 and Figure 18It also includes a base 5 and a cover plate assembly 6. The sliding seat 22 is provided with a reversing linkage groove 226. The cover plate assembly 6 includes a cover plate 61, a four-bar linkage 62 and a transmission rod mechanism 63. The four-bar linkage 62 is installed between the cover plate 61 and the base 5. One end of the transmission rod mechanism 63 is slidably installed in the linkage groove 226, and the other end is hinged to the four-bar linkage 62. When the sliding seat 22 rises / falls, the transmission rod mechanism 63 moves along the linkage groove 226. When changing direction, the transmission rod mechanism 63 rotates and drives the four-bar linkage 62 to swing. The swing can drive the cover plate 61 to move to the raised state or the lowered state. Specifically, the base 5 is fixedly installed in the front engine compartment by bolts or welding, and the guide rail 1 and drive assembly 4 are fixed to the base 5 by bolts. The four-bar linkage 62 adopts the prior art and includes a first link 621, a second link 622 and a third link 623. The transmission rod mechanism 63 includes a first transmission rod 631 and a second transmission rod 632, which are hinged together. The first link 621 includes a first segment 624 and a second segment 625, which are connected at an angle. The angle is set according to the actual application scenario, and is 145° in this application. The upper end of the first rod segment 624 is fixedly connected to the cover plate 61. One end of the second rod segment 625 is hinged to the second connecting rod 622, and the other end is hinged to the third connecting rod 623. The other end of the second connecting rod 622 is connected to the base 5, and the other end of the third connecting rod 623 is connected to the base 5. The hinged connection between the second connecting rod 622 and the third connecting rod 623 and the base 5 forms a virtual fourth connecting rod 626. The second rod segment 625, the second connecting rod 622, the third connecting rod 623, and the virtual fourth connecting rod 626 constitute a four-bar linkage 62. The first transmission rod 631 is a triangular plate with a roller 633 at one corner. The roller 633 contacts the bottom surface of the linkage groove 226 and slides along the linkage groove 226. One corner is hinged to the second transmission rod 632, and the other corner is connected to the base 5. The other end of the second transmission rod 632 is hinged to the first connecting rod 621. In this application, the linkage groove 226 changes direction by 90°. In use, when the sliding seat 22 descends, the roller of the first transmission rod 631 moves in the linkage groove 226. When the sliding seat 22 descends to a certain position, the linkage groove 226 changes direction, the first transmission rod 631 rotates, driving the second transmission rod 632 to move upward, and the cover plate 61 rises from the storage position to the ejected position along the four-bar linkage trajectory. Conversely, when the sliding seat 22 rises, the cover plate 61 descends from the ejected position to the storage position along the four-bar linkage trajectory. Whether the sign 21 descends on command or is triggered for protective descent, no other drive system is needed. Driven by the linkage groove 226, the cover plate 61 is raised along the four-bar linkage trajectory to seal the opening, effectively protecting the sign 21 from theft or damage.

[0037] This invention provides a vehicle emblem device with a trigger protection function. The emblem assembly 2 and clutch assembly 3 are mounted on a sliding seat 22. When the emblem 21 is subjected to force, the second disc 26 amplifies and converts the displacement of the emblem 21 into a downward displacement of the support rod 23, driving the rotating connecting rod 32 to rotate clockwise. The rotation of the rotating connecting rod 32 causes the clutch seat 31 to move backward, while the driving assembly 4 remains stationary. The driving assembly 4 separates from the clutch seat 31, ceasing to provide support to the emblem assembly 2. Under the influence of its own gravity and the action of the tension spring 11, the emblem assembly 2 moves rapidly downward along the guide rail 1 into the vehicle, reducing the risk of the emblem 21 being damaged or stolen. The sliding seat 22 has grooves 222 on both outer sides, which are fitted onto both sides of the guide rail 1. The lower part of both sides of the guide rail 1 has tapered protrusions 14 that cooperate with the grooves 222, providing guidance as the sliding seat 22 rises and falls along the guide rail 1. The sliding groove 312 has a left arc groove 314 and a right arc groove 315 at its two ends, respectively. The marker 21 requires long-term positioning at its upper stop point, effectively preventing the moving part 43 from dislodging under external vibration. Upon receiving a raise or lower command, the drive assembly 4 drives the clutch seat 31 to rise or fall, effectively preventing the moving part 43 from dislodging from the sliding groove 312 during movement, while also improving the support stability of the drive assembly 4 for the clutch seat 31. The setting of the second spring 27 and the width of the moving part 43 helps prevent accidental separation between the clutch seat 31 and the moving part 43. A linkage groove 226 is provided so that when the marker 21 rises / falls, the cover plate 61 is synchronously driven to rise or fall, effectively protecting the marker 21 from theft or damage.

[0038] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle emblem device with trigger protection function, characterized in that, include: The guide rail (1), the logo assembly (2), the clutch assembly (3) and the drive assembly (4) are slidably set on the guide rail (1). The clutch assembly (3) includes a clutch seat (31) and a rotating link (32). The rotating link (32) is hinged in the logo assembly (2). One end of the rotating link (32) abuts against the lower end of the logo assembly (2), and the other end is connected to the clutch seat (31). When in contact, the drive assembly (4) supports the logo assembly (2) to stand up or drives the logo assembly (2) to rise and fall. When the logo assembly (2) is subjected to external force, the rotating link (32) will rotate, causing the clutch seat (31) to move and separate from the drive assembly (4). The logo assembly (2) is subjected to force and descends along the guide rail (1). The drive assembly (4) is restarted to restore contact with the clutch seat (31).

2. The vehicle emblem device with trigger protection function according to claim 1, characterized in that, The logo assembly (2) includes a logo (21), a sliding seat (22) and a support rod (23). The logo (21) is mounted on the sliding seat (22), which is slidably mounted on the guide rail (1). The upper end of the support rod (23) is connected to the logo (21), and the lower end abuts against the rotating connecting rod (32).

3. The vehicle emblem device with trigger protection function according to claim 2, characterized in that, The sliding seat (22) has a sliding table (223) on both outer sides, and the sliding table (223) has a sliding groove (222) that mates with the outer side of the guide rail.

4. The vehicle emblem device with trigger protection function according to claim 2 or 3, characterized in that, The clutch assembly (3) also includes a first spring (33), one end of which abuts against the sliding seat (22) and the other end is connected to the clutch seat (31).

5. The vehicle emblem device with trigger protection function according to claim 4, characterized in that, The sliding seat (22) is provided with a slot (224) that mates with one end of the first spring (33), and the clutch seat (31) is provided with a locking plate (311) that mates with the inner diameter of the other end of the first spring (33).

6. The vehicle logo device with trigger protection function according to claim 1, 2, 3 or 5, wherein the lower end face of the clutch seat (31) is provided with a sliding groove (312), and a left arc groove (314) and a right arc groove (315) are provided at both ends of the sliding groove (312).

7. The vehicle emblem device with trigger protection function according to claim 6, characterized in that, The drive assembly (4) includes a drive source (41), a drive arm (42), and a moving part (43). The drive arm (42) is installed at the output end of the drive source (41), and the moving part (43) is installed at the end of the drive arm (42) away from the drive source (41). The drive source (41) drives the moving part (43) to move relative to the sliding groove (312) through the drive arm (42) to support or lift the clutch seat (31).

8. The vehicle emblem device with trigger protection function according to claim 2, 3 or 5, characterized in that, The logo assembly (2) also includes a fixing seat (24), a first disc (25) and a second disc (26). The fixing seat (24) is fixedly installed on the sliding seat (22). The logo (21) passes through the fixing seat (24) and is connected to the first disc (25). The lower end face of the second disc (26) is connected to the support rod (23), and the upper end face is connected to the first disc (25). The outer diameter of the first disc (25) is smaller than the outer diameter of the second disc (26).

9. The vehicle emblem device with trigger protection function according to claim 8, characterized in that, The logo assembly (2) also includes a second spring (27) and a support tube (28). The support tube (28) is installed on the inner wall of the sliding seat (22). The lower end of the second spring (27) abuts against the support tube (28), and the upper end abuts against the lower surface of the second disc (26).

10. The vehicle emblem device with trigger protection function according to claim 2, 3, 5 or 9, characterized in that, It also includes a base (5) and a cover plate assembly (6). The sliding seat (22) is provided with a reversing linkage groove (226). The cover plate assembly (6) includes a cover plate (61), a four-bar linkage (62) and a transmission rod mechanism (63). The four-bar linkage (62) is installed between the cover plate (61) and the base (5). One end of the transmission rod mechanism (63) is slidably installed in the linkage groove (226), and the other end is hinged to the four-bar linkage (62). When the sliding seat (22) rises / falls, the transmission rod mechanism (63) moves along the linkage groove (226). When the direction changes, the transmission rod mechanism (63) rotates and drives the four-bar linkage (62) to swing. The swing can drive the cover plate (61) to move to the raised state or the lowered state.

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