CN111891045A - Radar protection device and vehicle - Google Patents
Radar protection device and vehicle Download PDFInfo
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- CN111891045A CN111891045A CN202010659260.5A CN202010659260A CN111891045A CN 111891045 A CN111891045 A CN 111891045A CN 202010659260 A CN202010659260 A CN 202010659260A CN 111891045 A CN111891045 A CN 111891045A
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- radar
- transmission
- link
- piece
- passive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/004—Arrangements for holding or mounting articles, not otherwise provided for characterised by position outside the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/008—Adjustable or movable supports
- B60R2011/0092—Adjustable or movable supports with motorization
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The utility model relates to a radar protector and vehicle, this radar protector includes the fixing base, passive telescopic machanism, a drive arrangement, one-way transmission subassembly and the piece that resets, passive telescopic machanism one end is connected in the fixing base, the other end is used for linking to each other so that the radar can stretch out or retract for the fixing base with the radar, the piece that resets is used for driving passive telescopic machanism and stretches out after passive telescopic machanism retracts, drive arrangement passes through one-way transmission subassembly and is connected with the radar, one-way transmission subassembly is configured to can drive radar initiative withdrawal under drive arrangement's drive, and when the radar is when passive withdrawal under the exogenic action, one-way transmission subassembly can float and do not obstruct the radar withdrawal. When the radar receives the collision, under the exogenic action, the radar promotes passive telescopic machanism and withdraws passively jointly, and meanwhile, one-way transmission subassembly can float and do not hinder the passive withdrawal of radar to when making the radar receive external force, can in time withdraw to the car in, avoid damaging or reduce the damage.
Description
Technical Field
The disclosure relates to the technical field of unmanned vehicles, in particular to a radar protection device and a vehicle.
Background
The unmanned vehicle is an intelligent vehicle which senses the road environment through a vehicle-mounted sensing system, automatically plans a driving route and controls the vehicle to reach a preset target. The vehicle-mounted sensor is used for sensing the surrounding environment of the vehicle, and controlling the steering and the speed of the vehicle according to the road, the vehicle position and the obstacle information obtained by sensing, so that the vehicle can safely and reliably run on the road. The laser radar is a radar system that detects a characteristic amount such as a position and a velocity of a target by emitting a laser beam. The lidar mounted on the unmanned vehicle is generally required to protrude to the outermost side of the vehicle body to secure its visual field, and is easily damaged when being hit during traveling.
Disclosure of Invention
The utility model aims at providing a radar protector and vehicle, this radar protector can carry out certain protection to the radar when the radar receives the collision, avoids or alleviates the damage that the radar probably received.
In order to achieve the above object, the present disclosure provides a radar protection device and a vehicle, the radar protection device includes a fixing base, a passive telescopic mechanism, a driving device, a one-way transmission assembly and a reset member, one end of the passive telescopic mechanism is connected to the fixing base, and the other end of the passive telescopic mechanism is used for being connected to a radar so that the radar can extend out or retract relative to the fixing base, the reset member is used for driving the passive telescopic mechanism to extend out after the passive telescopic mechanism retracts, the driving device is connected to the radar through the one-way transmission assembly, the one-way transmission assembly is configured to be capable of driving the radar to actively retract under the driving of the driving device, and when the radar passively retracts under the external force, the one-way transmission assembly can float without obstructing the radar retraction.
Optionally, the unidirectional transmission assembly comprises a flexible transmission member, one end of the flexible transmission member is used for being connected with the radar, the other end of the flexible transmission member is connected with the driving device, and when the radar retracts passively, the flexible transmission member bends.
Optionally, the flexible drive is configured as a steel cable.
Optionally, the unidirectional transmission assembly includes a first transmission member and a second transmission member arranged along a telescopic direction of the radar, a first end of the first transmission member is used for being connected with the radar, a first end of the second transmission member is in transmission connection with the driving device, a second end of the first transmission member is in unidirectional lap joint with a second end of the second transmission member, the unidirectional lap joint is configured to enable the second transmission member to drive the first transmission member to retract when the radar needs to actively retract, and the second end of the first transmission member is separated from the second end of the second transmission member when the radar retracts passively.
Optionally, the first transmission piece includes a transmission rod portion and an overlapping portion, one end of the transmission rod portion is used for being connected with the radar, the other end of the transmission rod portion is provided with a protrusion of the overlapping portion, the second transmission piece is constructed to be a tubular structure, a guide groove extending along the axial direction is formed in the tubular structure, a guide through hole is formed in the bottom wall of the guide groove corresponding to the second end of the second transmission piece, the transmission rod portion is slidably arranged in the guide through hole in a penetrating mode, and the overlapping portion can slide along the guide groove.
Optionally, the passive telescopic mechanism includes a planar four-bar mechanism in a parallelogram shape, and the planar four-bar mechanism includes a first connecting bar, a second connecting bar, a third connecting bar and a fourth connecting bar, a first end of the first connecting bar is used for being hinged to the radar, a second end of the first connecting bar is hinged to a first end of the second connecting bar, a second end of the second connecting bar is hinged to the fixing base, a first end of the third connecting bar is used for being hinged to the radar, a second end of the third connecting bar is hinged to a first end of the fourth connecting bar, a second end of the fourth connecting bar is hinged to the fixing base, the first connecting bar is parallel to the fourth connecting bar, and the second connecting bar is parallel to the third connecting bar.
Optionally, the radar protection device further includes a synchronous transmission assembly, the first connecting rod and the second connecting rod constitute a first swing arm, the third connecting rod and the fourth connecting rod constitute a second swing arm, and the synchronous transmission assembly is respectively in transmission connection with the first swing arm and the second swing arm to realize synchronous motion of the first swing arm and the second swing arm.
Optionally, the synchronous transmission assembly includes a first gear and a second gear capable of meshing with each other, the first gear is fixed to the second end of the second link and centered on a rotation center of the second end, and the second gear is fixed to the second end of the fourth link and centered on a rotation center of the second end.
Optionally, the periphery of the first gear has a first non-tooth portion and a first tooth portion, the periphery of the second gear has a second non-tooth portion and a second tooth portion, in the process of extending or retracting of the passive telescopic mechanism, the first tooth portion is meshed with the second tooth portion, and when the passive telescopic mechanism extends completely, the first non-tooth portion abuts against the second non-tooth portion to lock the passive telescopic mechanism.
Optionally, the radar protection device further includes a reset member for driving the passive telescopic mechanism to extend after the passive telescopic mechanism retracts, wherein the reset member is configured as a first elastic member, and the first elastic member is disposed between the passive telescopic mechanism and the fixed base, and/or disposed between the links of the planar four-bar mechanism that move relative to each other.
Through foretell technical scheme, the in-process radar that the vehicle went is in the state of stretching out, because install the radar on passive telescopic machanism, when the radar received the collision, under the exogenic action, the radar promoted passive telescopic machanism passive withdrawal jointly, passive telescopic machanism can not hinder the passive withdrawal of radar, and meanwhile, one-way transmission subassembly can float and do not hinder the passive withdrawal of radar. Compare in only utilizing one set of two-way drive mechanism to realize stretching out and retracting of radar, can hinder the passive withdrawal of radar, in this disclosure, it stretches out to drive the radar through passive telescopic machanism, drive radar withdrawal through drive arrangement and drive assembly, because passive telescopic machanism and one-way drive assembly's cooperation, make can enough drive the radar and stretch out and the withdrawal, can not hinder the passive withdrawal of radar again, thereby when making the radar receive external force, can in time retract in the car, avoid damaging or reduce the radar damage. In addition, when the vehicle need stop for a long time and deposit, start drive arrangement, through one-way transmission assembly with radar and passive telescopic machanism common initiative retraction in the car, the protection radar reduces occupation of land space, convenient transport and other vehicles from the bypass.
According to another aspect of the present disclosure, a vehicle is further provided, which includes a vehicle shell, a radar and the radar protection device mentioned above, wherein the vehicle shell is provided with a through hole for the radar to extend out or retract back, and the radar protection device is arranged in the vehicle shell.
Optionally, the vehicle still includes clean subassembly, clean subassembly includes elastic cover plate and cleaning member, elastic cover plate's first end is fixed in the hull, the second end extends to the through hole just is provided with the cleaning member, when the radar is flexible the cleaning member is right the surface of radar is cleaned.
Optionally, the cleaning assembly further comprises a second elastic member connected between the vehicle shell and the elastic cover plate to restore the elastic cover plate after the radar passes through the through hole.
Optionally, the number of the cleaning assemblies is two, the two elastic cover plates are respectively arranged on two sides of the through hole and extend oppositely, and the shape of the two cleaning assemblies is matched with the shape of the outer wall of the radar so as to clean the radar passing through the through hole.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic perspective view of a vehicle with a radar extended according to one embodiment of the present disclosure;
FIG. 2 is a schematic perspective view of a vehicle with a radar retracted according to one embodiment of the present disclosure;
FIG. 3 is a side schematic view of a vehicle with a radar extended according to one embodiment of the present disclosure;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic perspective view of a radar protection device according to an embodiment of the present disclosure;
FIG. 6 is a first side view of a radar protection device according to an embodiment of the present disclosure, wherein the mounting base is partially cut away and the first tooth portion is engaged with the second tooth portion;
FIG. 7 is a schematic cross-sectional view taken along line B-B of FIG. 6;
FIG. 8 is a second side view schematic illustration of a radar shield apparatus according to an embodiment of the present disclosure, wherein the first non-toothed portion and the second non-toothed portion abut;
FIG. 9 is a schematic perspective view of a radar shield apparatus according to another embodiment of the present disclosure;
FIG. 10 is a schematic cross-sectional view of a radar protection device according to another embodiment of the present disclosure, with a unidirectional flux assembly, a mount, and a drive device cut away;
FIG. 11 is a schematic view of a one-way transmission assembly of another embodiment of the present disclosure;
FIG. 12 is a schematic view, partially in section, of a portion of a vehicle mounted cleaning assembly during radar retraction according to one embodiment of the present disclosure;
FIG. 13 is a schematic view, partially in section, of a portion of a vehicle with a cleaning assembly installed with a radar fully extended according to one embodiment of the present disclosure;
FIG. 14 is a partially cut-away schematic view of a portion of a vehicle with a cleaning assembly installed with the radar fully retracted according to one embodiment of the present disclosure.
Description of the reference numerals
100-radar protection; 10-passive telescoping mechanism; 11-a first link; 12-a second link; 13-a third link; 14-a fourth link; 15-a first swing arm; 16-a second swing arm; 17-a first drive shaft; 18-a second drive shaft; 20-a drive device; 21-a reel; 30-a one-way transmission assembly; 31-a flexible drive; 33-a first transmission member; 331-a lap joint; 332-a drive rod part; 34-a second transmission member; 341-guide groove; 342-a guide through hole; 343-a bottom wall; 40-a fixed seat; 50-a synchronous drive assembly; 51-a first gear; 511-a first non-dental part; 512-a first tooth portion; 52-a second gear; 521-a second non-dental part; 522-second tooth portion; 60-a reset piece; 70-a mounting seat; 200-a vehicle; 201-radar; 80-a cleaning component; 81-elastic cover plate; 82-a cleaning member; 83-a second elastic member; 202-vehicle shell; 203-perforating the hole.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, the "inside and outside" refer to the inside and outside of the vehicle body shell 202, unless otherwise specified. The radar 201 is retracted to mean that the radar 201 moves towards the direction close to the fixed base 40, and the radar 201 is extended to mean that the radar 201 moves away from the fixed base 40. In addition, the terms "first", "second", and the like used in the embodiments of the present disclosure are for distinguishing one element from another, and have no order or importance.
In order to protect the radar 201 to some extent when the radar is collided, the present disclosure provides a radar protection device 100 and a vehicle 200 having the radar protection device 100. As shown in fig. 1-14, in accordance with an aspect of the present disclosure, a radar protection device 100 is provided. The radar protection device 100 comprises a fixed seat 40, a passive telescopic mechanism 10, a driving device 20, a one-way transmission assembly 30 and a resetting piece 60. The passive telescopic mechanism 10 has one end connected to the fixed base 40 and the other end for connecting with the radar 201 so that the radar 201 can extend or retract relative to the fixed base 40. The reset member 60 is used to drive the passive telescopic mechanism 10 to extend after the passive telescopic mechanism 10 retracts, so as to drive the radar to extend. The driving device 20 is connected with the radar 201 through the one-way transmission assembly 30, the one-way transmission assembly 30 is configured to drive the radar 201 to actively retract under the driving of the driving device 20, and when the radar 201 retracts passively under the action of external force, the one-way transmission assembly 30 can float without obstructing the radar 201 to retract. Optionally, in one embodiment, the radar 201 may be a lidar 201. In other embodiments, the radar 201 may also be a microwave radar 201.
"not obstructing the retraction of the radar 201" means that the radar 201 is not subjected to resistance (except for resistance which is not resisted by friction) when retracted, or is subjected to less resistance when retracted. The "low resistance" is for the drive means 20 to actuate the radar 201 through a rigid transmission assembly (e.g. gear, worm gear, rack and pinion, cam) capable of bidirectional transmission. If a rigid transmission assembly is adopted and a motor with a self-locking function is adopted as the motor in the driving device 20, the radar 201 cannot be retracted at all. Moreover, even if the motor does not have the self-locking function, a certain external force is required to enable the motor to rotate reversely. The radar 201 is subject to resistance from the rigid drive components in the reverse direction when retracted in the event of a collision, which resistance prevents the radar 201 from retracting, thereby preventing the radar 201 from retracting in a timely manner in the event of a collision. Moreover, if the transmission assembly is rigid, due to the transmission ratio, a large force is required to drive the transmission assembly in the reverse direction to drive the motor to rotate in the reverse direction, so that the radar 201 retracts. Therefore, in case of a collision, the rigid transmission component may prevent the radar 201 from retracting, and may damage the radar 201.
The term "passive telescopic mechanism" means that the telescopic mechanism is not provided with a driving source and can be extended and retracted without hindrance under the action of external force.
Through the above technical scheme in the present disclosure, as shown in fig. 1 and fig. 3 to 4, in the running process of the vehicle 200, the radar 201 is in the extended state, and as the radar 201 is installed on the passive telescopic mechanism 10, when the radar 201 is collided, under the action of an external force, the radar 201 pushes the passive telescopic mechanism 10 to retract passively together (as shown in fig. 2), the passive telescopic mechanism 10 does not obstruct the passive retraction of the radar 201, and meanwhile, the unidirectional transmission assembly 30 floats without obstructing the passive retraction of the radar 201. Compare in only utilizing one set of two-way drive mechanism to realize stretching out and retracting of radar 201, can hinder the passive withdrawal of radar 201, in this disclosure, make passive telescopic machanism 10 drive radar 201 and stretch out through piece 60 that resets, drive radar 201 withdrawal is driven through drive arrangement 20 and drive assembly, because the cooperation of passive telescopic machanism 10 and one-way drive assembly 30, make enough to drive radar 201 and stretch out and the withdrawal, can not hinder passive withdrawal of radar 201 again, thereby when making radar 201 receive external force, can in time retract in the car, avoid damaging or reduce radar 201 damage.
In addition, as shown in fig. 2, when the vehicle 200 needs to stay for a long time for storage, the driving device 20 is started, and the radar 201 and the passive telescopic mechanism 10 are actively retracted into the vehicle together through the one-way transmission assembly 30, so that the radar 201 is protected, the occupied space is reduced, and the vehicle is convenient to carry and other vehicles 200 bypass.
The specific construction of the unidirectional transmission assembly 30 in this disclosure is not limited as long as passive retraction of the radar 201 is not impeded. Alternatively, in a first embodiment of the present disclosure, as shown in fig. 5-6, the unidirectional transmission assembly 30 includes a flexible transmission member 31, one end of the flexible transmission member 31 is used for connecting with the radar 201, and the other end is connected with the driving device 20, and when the radar 201 is passively retracted, the flexible transmission member 31 is bent.
On the one hand, flexible transmission member 31 has certain flexibility, and when radar 201 initiatively withdraws, flexible transmission member 31 can transmit power, and drive arrangement 20 drives radar 201 retraction through flexible transmission member 31. On the other hand, also because flexible transmission member 31 has certain flexibility, when radar 201 receives external force to retract passively, radar 201 causes flexible transmission member 31 to take place bending deformation, gives way for radar 201's withdrawal, and consequently, flexible transmission member 31 can not hinder radar 201's withdrawal for radar 201 can timely withdrawal when receiving external force.
The choice of which flexible drive 31 is not limited in this disclosure, so long as passive retraction of the radar 201 is not impeded. Alternatively, in one embodiment of the present disclosure, as shown in fig. 5-6, the flexible drive 31 is configured as a steel wire rope.
In other embodiments, the flexible transmission member 31 may also be a hemp rope, a nylon rope, a belt, or the like having a certain strength.
Alternatively, in an embodiment of the present disclosure, as shown in fig. 5 to 6, the driving device 20 includes a motor, a winding drum 21 is fixed on an output shaft of the motor, an annular groove is formed on an outer circumference of the winding drum 21, and one end of the steel wire rope is connected to the radar 201, and the other end of the steel wire rope is connected to the annular groove. When the radar 201 needs to be actively retracted, the motor is started, and drives the winding drum 21 to rotate, so that the steel wire rope is wound in the annular groove, and the radar 201 is connected with the passive telescopic mechanism 10 to be pulled back together.
In a second embodiment of the present disclosure, as shown in fig. 9 to 10, the unidirectional transmission assembly 30 includes a first transmission piece 33 and a second transmission piece 34 arranged in the telescopic direction of the radar 201. The first end of the first transmission member 33 is used for being connected with the radar 201, and the first end of the second transmission member 34 is connected with the driving device 20 in a transmission manner, so that the driving device 20 drives the second transmission member 34 to extend and retract. The second end of the first transmission member 33 can be in one-way lap joint with the second end of the second transmission member 34, the one-way lap joint is configured to enable the second transmission member 34 to drive the first transmission member 33 to retract when the radar 201 needs to be actively retracted, and the second end of the first transmission member 33 is separated from the second end of the second transmission member 34 when the radar 201 needs to be passively retracted.
When the radar 201 is actively retracted, the first transmission piece 33 and the second transmission piece 34 are overlapped, and the driving device 20 drives the first transmission piece 33 to retract through the second transmission piece 34, so that the radar 201 is retracted. When the radar 201 passively retracts under the external force, the first transmission piece 33 is separated from the second transmission piece 34, and the second end of the first transmission piece 33 is gradually away from the second end of the second transmission piece 34 in the process of retracting the first transmission piece 33, so that the second transmission piece 34 does not obstruct the retraction of the radar 201 and the first transmission piece 33, and the radar 201 can retract in time under the external force.
There is no limitation in the present disclosure as to how the first transmission member 33 and the second transmission member 34 are provided, and optionally, in one embodiment, as shown in fig. 10, the first transmission member 33 includes a transmission rod portion 332 and a lap portion 331, one end of the transmission rod portion 332 is used for connecting with the radar 201, and the other end is provided with a protruding lap portion 331. The second transmission member 34 is configured as a cylindrical structure, a guide groove 341 extending along the first axial direction is formed inside the cylindrical structure, a guide through hole 342 is formed in a bottom wall 343 of the guide groove 341 corresponding to the second end of the second transmission member 34, the transmission rod portion 332 slidably penetrates through the guide through hole 342, and the overlapping portion 331 can slide along the guide groove 341.
When the radar 201 needs to actively retract, the overlapping part 331 of the first transmission piece 33 abuts against the bottom wall 343 of the guide groove 341, and the overlapping part 331 is pulled by the second transmission piece 34 so as to drive the first transmission piece 33 to retract. When the radar 201 is passively retracted by an external force, the overlapping portion 331 of the first transmission member 33 is separated from the bottom wall 343 of the second transmission member 34, and the overlapping portion 331 and the bottom wall 343 are gradually separated from each other, at this time, the overlapping portion 331 slides along the guide groove 341, so that the second transmission member 34 does not obstruct the retraction of the radar 201 and the first transmission member 33, and the radar 201 can be timely retracted by the external force.
Alternatively, as shown in fig. 9 to 10, the driving device 20 includes a motor, a gear is fixed on an output shaft of the motor, and a rack is provided on the second transmission member 34, and the rack is engaged with the gear. When the radar 201 needs to actively retract, the motor is started, the motor drives the second transmission member 34 to retract through the cooperation of the gear and the rack, and when the overlapping portion 331 abuts against the bottom wall 343, the second transmission member 34 drives the first transmission member 33 to retract.
In other embodiments, as shown in fig. 11, the second end of the first transmission piece 33 may be provided with a first hooking portion and the second end of the second transmission piece 34 may be provided with a second hooking portion, and the first hooking portion and the second hooking portion are in one-way lap joint or in one-way hooking. When radar 201 needs the initiative withdrawal, first hook portion and second hook portion support each other and lean on, and drive arrangement 20 starts, and first hook portion of second hook portion pulling to drive radar 201 withdrawal. When the radar 201 is passively retracted by an external force, the first hooking portion is separated from the second hooking portion, and the second transmission member 34 does not obstruct the retraction of the radar 201 and the first transmission member 33. Furthermore, the second transmission member 34 may be provided with a groove extending in the axial direction, so that the first hooking portion can slide along the groove when retracting.
There is no limitation in the present disclosure as to how passive telescoping mechanism 10 is configured to extend and retract radar shield apparatus 100, and may be configured as desired, and alternatively, in one embodiment of the present disclosure, passive telescoping mechanism 10 comprises a planar four-bar linkage in the form of a parallelogram, as shown in fig. 5-6. The planar four-bar mechanism includes a first link 11, a second link 12, a third link 13, and a fourth link 14. The first end of the first connecting rod 11 is used for being hinged to the radar 201, the second end of the first connecting rod is hinged to the first end of the second connecting rod 12, the second end of the second connecting rod 12 is hinged to the fixing seat 40, the first end of the third connecting rod 13 is used for being hinged to the radar 201, the second end of the third connecting rod is hinged to the first end of the fourth connecting rod 14, the second end of the fourth connecting rod 14 is hinged to the fixing seat 40, the first connecting rod 11 is parallel to the fourth connecting rod 14, and the second connecting rod 12 is parallel to the third connecting rod 13.
Because the passive telescopic mechanism 10 is configured to be a planar four-bar mechanism in a parallelogram shape, the passive telescopic mechanism 10 can realize the translation of the radar 201 when the radar 201 is driven to extend and retract, which is helpful to ensure that the radar 201 is in a horizontal state and obtain an accurate detection result.
It will be appreciated that in other embodiments, the passive telescoping mechanism 10 may also be configured as a scissor lift mechanism including a plurality of the planar four-bar mechanisms.
Optionally, in an embodiment of the present disclosure, as shown in fig. 5, the radar protection device 100 further includes a mounting seat 70 for mounting a radar 201. The first end of the first link 11 and the first end of the third link 13 are respectively hinged with the mounting seat 70.
Optionally, in an embodiment of the present disclosure, as shown in fig. 5 and 6, the radar protection device 100 further includes a synchronous transmission assembly 50, the first link 11 and the second link 12 constitute a first swing arm 15, and the third link 13 and the fourth link 14 constitute a second swing arm 16. The synchronous transmission assembly 50 is in transmission connection with the first swing arm 15 and the second swing arm 16 respectively to realize synchronous movement of the first swing arm 15 and the second swing arm 16, so as to further ensure that the passive telescopic mechanism 10 drives the radar 201 to realize translation when telescopic.
In the present disclosure, there is no limitation on what kind of synchronous transmission assembly 50 the synchronous motion of the first swing arm 15 and the second swing arm 16 is achieved, alternatively, in an embodiment of the present disclosure, as shown in fig. 5 and 6, the synchronous transmission assembly 50 includes a first gear 51 and a second gear 52 that can be engaged with each other, the first gear 51 is fixed to the second end of the second link 12 and centered on the rotation center of the second end, and the second gear 52 is fixed to the second end of the fourth link 14 and centered on the rotation center of the second end.
Therefore, the engagement of the first gear 51 and the second gear 52 can ensure that when one of the swing arms moves, the other swing arm moves synchronously. Moreover, the gear transmission structure is compact and the transmission is stable.
In other embodiments, the synchronous rotation of the first swing arm 15 and the second swing arm 16 can also be achieved by a pulley or a sprocket. Taking the chain wheels as an example for description, one of the chain wheels is fixed at the second end of the second connecting rod 12, the rotation center of the second end is the center of the circle, the other chain wheel is fixed at the second end of the fourth connecting rod 14, the rotation center of the second end is the center of the circle, and the belt is sleeved on the two chain wheels, so as to realize synchronous transmission.
Alternatively, in one embodiment of the present disclosure, as shown in fig. 6 and 8, the outer periphery of the first gear 51 has a first non-tooth part 511 and a first tooth part 512. The outer periphery of the second gear 52 has a second non-tooth portion 521 and a second tooth portion 522. As shown in fig. 6, during the process of extending or retracting the passive telescopic mechanism 10, the first tooth portion 512 is engaged with the second tooth portion 522, so as to realize the synchronous movement of the first swing arm 15 and the second swing arm 16; when the passive telescopic mechanism 10 extends completely, as shown in fig. 8, the first non-tooth part 511 and the second non-tooth part 521 abut against each other, so that the first gear 51 and the second gear 52 cannot rotate continuously, the passive telescopic mechanism 10 is locked, the maximum extending displacement of the radar 201 can be limited, the radar 201 can be locked at the maximum displacement, the radar 201 is ensured to be stably in a horizontal state, and the radar 201 is not prone to shaking.
Alternatively, each of the first and second non-tooth portions 511 and 521 is configured as an arc-shaped surface, and the sum of the radius of the arc-shaped surface of the first non-tooth portion 511 and the radius of the arc-shaped surface of the second non-tooth portion 521 is greater than the center distance of the first and second gears 51 and 52, so that, when the first and second gears 51 and 52 rotate until the first and second non-tooth portions 511 and 521 abut against each other, the first and second gears 51 and 52 cannot continue to rotate due to the mutual pressing force between the first and second non-tooth portions 511 and 521, thereby locking the passive telescopic mechanism 10, as shown in fig. 8.
To enable extension of passive retraction mechanism 10, in one embodiment of the present disclosure, as shown in fig. 7, radar shield apparatus 100 further includes a return member 60 for driving extension of passive retraction mechanism 10 after retraction of passive retraction mechanism 10. The restoring member 60 is configured as a first elastic member disposed between the passive telescopic mechanism 10 and the fixed base 40 and/or between links that move with each other in the planar four-bar mechanism. The link that moves relative to each other may be between the first link 11 and the third link 13 or between the second link 12 and the fourth link 14.
When the passive telescopic mechanism 10 is driven to retract through the radar 201 under the action of the driving device 20 or external force, the resetting piece 60 stores energy, and when the external force is removed or the driving device 20 stops, the resetting piece 60 releases energy, so that the passive telescopic mechanism 10 is driven to extend.
Alternatively, in an embodiment of the present disclosure, as shown in fig. 7, the number of the first elastic members is two, and the first elastic members are configured as torsion springs, the passive telescopic mechanism 10 further includes a first transmission shaft 17 and a second transmission shaft 18, the first gear 51 and the second connecting rod 12 are respectively fixedly connected to the first transmission shaft 17, the first transmission shaft 17 is inserted into the second ends of the first gear 51 and the second connecting rod 12, one end of the torsion spring is fixed to the first transmission shaft 17, and the other end of the torsion spring is fixed to the fixing base 40. Similarly, the second gear 52 and the fourth connecting rod 14 are respectively fixedly connected to the second transmission shaft 18, the second transmission shaft 18 penetrates through the second gear 52 and the fourth connecting rod 14, one end of the torsion spring is fixed to the second transmission shaft 18, and the other end of the torsion spring is fixed to the fixing base 40.
In other embodiments, the first elastic member may be a tension spring disposed between the second link 12 and the fourth link 14, or a tension spring disposed between the first link 11 and the third link 13. When the passive telescopic mechanism 10 is driven to retract by the radar 201 under the action of the driving device 20 or external force, the tension spring is stretched, and when the external force is removed or the driving device 20 stops, the tension spring releases energy, so that the second connecting rod 12 and the fourth connecting rod 14 or the first connecting rod 11 and the third connecting rod 13 are close to each other, and the passive telescopic mechanism 10 is driven to extend.
The laser radar 201 is exposed outdoors and easily polluted by rain water and dust, and the sensing ability is easily reduced when the laser radar is not cleaned in time.
According to another aspect of the present disclosure, a vehicle 200 is further provided, where the vehicle 200 includes a vehicle shell 202, a radar 201, and the above-mentioned radar protection device 100, the vehicle shell 202 has a through hole 203 for the radar 201 to extend out or retract, and the radar protection device 100 is disposed in the vehicle shell 202. The fixing base 40 is fixed to the vehicle body shell 202. When the radar 201 extends out of the vehicle shell 202, the radar passes through the through hole 203, and when the radar 201 retracts, the radar passes through the through hole 203 and retracts into the vehicle shell 202.
In order to clean the radar 201, in an embodiment of the present disclosure, as shown in fig. 12 to 14, the vehicle 200 further includes a cleaning assembly 80, the cleaning assembly 80 includes an elastic cover plate 81 and a cleaning member 82, a first end of the elastic cover plate 81 is fixed to the vehicle shell 202, a second end of the elastic cover plate 81 extends to the through hole 203 and is provided with the cleaning member 82, and the cleaning member 82 cleans the surface of the radar 201 when the radar 201 extends and contracts. The radar 201 passes through the through hole 203 when telescoping, and at this moment, the cleaning piece 82 contacts with the surface of the radar 201, sweeps away the dust on the outer surface of the radar 201, thereby cleans the surface of the radar 201. Moreover, the radar 201 can be repeatedly extended and retracted by the simultaneous action of the passive telescopic mechanism 10 and the driving mechanism, so that the radar 201 is contacted with the cleaning member 82 for multiple times, and the radar 201 can be actively cleaned more thoroughly. Furthermore, when the radar 201 is retracted into the vehicle body case 202, the elastic cover 81 can cover the through hole 203, thereby preventing dust from entering the vehicle body case 202 and attaching to the radar 201.
Alternatively, in one embodiment, the cleaning member 82 may be a cleaning brush to sweep dust off the surface of the radar 201.
Optionally, in one embodiment, as shown in fig. 12-14, the cleaning assembly 80 further comprises a second elastic member 83, and the second elastic member 83 is connected between the vehicle shell 202 and the elastic cover plate 81 to restore the elastic cover plate 81 after the radar 201 passes through the through hole 203. When the radar 201 passes through the through hole 203, the elastic cover plate 81 deforms and bends, the second elastic member 83 stores energy, after the radar 201 passes through the through hole 203, the acting force on the elastic cover plate 81 is cancelled, and under the action of the second elastic member 83, the elastic cover plate 81 resets. Alternatively, the elastic cover 81 may be a rubber cover, and the second elastic member 83 may be a rubber member. In other embodiments, the elastic cover 81 may also be a silicone member, and the second elastic member 83 may also be a spring sheet.
In order to clean all the surfaces of the radar 201 more completely, as shown in fig. 12 to 14, the number of the cleaning assemblies 80 is two, the two elastic cover plates 81 are respectively disposed at two sides of the through hole 203 and extend oppositely, and the two cleaning members 82 are both adapted to the outer wall of the radar 201 in shape so as to clean the radar 201 passing through the through hole 203.
When the radar 201 extends and contracts, the two cleaning pieces 82 penetrate through the space between the two cleaning pieces 82, and the shape of each cleaning piece 82 is matched with the shape of the outer wall of the radar 201, so that the two cleaning pieces 82 can cover the outer surface of the radar 201 and sweep from the outer surface of the radar 201, and therefore the outer surface of the radar 201 can be cleaned more effectively.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (14)
1. A radar protection device is characterized by comprising a fixed seat (40), a passive telescopic mechanism (10), a driving device (20), a one-way transmission assembly (30) and a resetting piece (60), wherein one end of the passive telescopic mechanism (10) is connected to the fixed seat (40), the other end of the passive telescopic mechanism (10) is used for being connected with a radar (201) so that the radar (201) can extend out or retract relative to the fixed seat (40), the resetting piece (60) is used for driving the passive telescopic mechanism (10) to extend out after the passive telescopic mechanism (10) retracts, the driving device (20) is connected with the radar (201) through the one-way transmission assembly (30), the one-way transmission assembly (30) is configured to be capable of driving the radar (201) to retract actively under the driving of the driving device (20), and when the radar (201) retracts passively under the action of external force, the unidirectional transmission assembly (30) is capable of floating without impeding retraction of the radar (201).
2. Radar guard according to claim 1, characterised in that the unidirectional transmission assembly (30) comprises a flexible transmission member (31), one end of the flexible transmission member (31) being adapted to be connected to the radar (201) and the other end being connected to the drive means (20), the flexible transmission member (31) flexing when the radar (201) is passively retracted.
3. Radar guard according to claim 2, characterised in that the flexible drive (31) is constructed as a steel wire rope.
4. Radar guard according to claim 1, characterised in that the unidirectional transmission assembly (30) comprises a first transmission member (33) and a second transmission member (34) arranged in the telescopic direction of the radar (201), the first end of the first transmission piece (33) is used for being connected with the radar (201), the first end of the second transmission piece (34) is connected with the driving device (20) in a transmission way, the second end of the first transmission piece (33) is in one-way lap joint with the second end of the second transmission piece (34), the one-way lap joint is configured to enable the second transmission piece (34) to drive the first transmission piece (33) to retract when active retraction of the radar (201) is required, and the second end of the first transmission piece (33) is separated from the second end of the second transmission piece (34) when the radar (201) is passively retracted.
5. The radar protection device according to claim 4, wherein the first transmission member (33) comprises a transmission rod portion (332) and a lapping portion (331), one end of the transmission rod portion (332) is used for being connected with the radar (201), the other end of the transmission rod portion is provided with the protruding lapping portion (331), the second transmission member (34) is constructed into a cylindrical structure, a guide groove (341) extending along the axial direction is formed in the cylindrical structure, a guide through hole (342) is formed in a bottom wall (343) of the guide groove (341) corresponding to the second end of the second transmission member (34), the transmission rod portion (332) is slidably arranged in the guide through hole (342) in a penetrating manner, and the lapping portion (331) can slide along the guide groove (341).
6. Radar guard according to any one of claims 1 to 5, characterised in that the passive telescopic mechanism (10) comprises a planar four-bar mechanism in the shape of a parallelogram comprising a first link (11), a second link (12), a third link (13) and a fourth link (14), the first end of the first link (11) being intended to be articulated to the radar (201), the second end being articulated to the first end of the second link (12), the second end of the second link (12) being articulated to the holder (40), the first end of the third link (13) being intended to be articulated to the radar (201), the second end being articulated to the first end of the fourth link (14), the second end of the fourth link (14) being articulated to the holder (40), the first link (11) being parallel to the fourth link (14), the second connecting rod (12) is parallel to the third connecting rod (13).
7. The radar protection device according to claim 6, wherein the radar protection device (100) further comprises a synchronous transmission assembly (50), wherein the first link (11) and the second link (12) form a first swing arm (15), the third link (13) and the fourth link (14) form a second swing arm (16), and the synchronous transmission assembly (50) is in transmission connection with the first swing arm (15) and the second swing arm (16) respectively, so as to realize synchronous movement of the first swing arm (15) and the second swing arm (16).
8. Radar guard device according to claim 7, characterised in that the synchronising transmission assembly (50) comprises a first gear wheel (51) and a second gear wheel (52) which are capable of meshing with each other, the first gear wheel (51) being fixed to and centred on the centre of rotation of the second end of the second link (12), the second gear wheel (52) being fixed to and centred on the centre of rotation of the second end of the fourth link (14).
9. The radar protection device according to claim 8, wherein the first gear (51) has a first non-toothed portion (511) and a first toothed portion (512) on the outer periphery thereof, the second gear (52) has a second non-toothed portion (521) and a second toothed portion (522) on the outer periphery thereof, the first toothed portion (512) is engaged with the second toothed portion (522) during extension or retraction of the passive telescopic mechanism (10), and the first non-toothed portion (511) and the second non-toothed portion (521) abut against each other to lock the passive telescopic mechanism (10) when the passive telescopic mechanism (10) is fully extended.
10. Radar guard according to claim 6, characterised in that the return member (60) is configured as a first resilient member arranged between the passive telescopic mechanism (10) and the fixed mount (40) and/or between mutually movable links in the planar four-bar mechanism.
11. A vehicle (200) comprising a vehicle shell (202), a radar (201), and the radar protection device (100) of any one of claims 1-10, wherein the vehicle shell (202) has a through hole (203) for the radar (201) to extend or retract, and the radar protection device (100) is disposed in the vehicle shell (202).
12. The vehicle (200) according to claim 11, wherein the vehicle (200) further comprises a cleaning assembly (80), the cleaning assembly (80) comprises an elastic cover plate (81) and a cleaning piece (82), a first end of the elastic cover plate (81) is fixed to the vehicle shell (202), a second end of the elastic cover plate extends to the through hole (203) and is provided with the cleaning piece (82), and the cleaning piece (82) cleans the surface of the radar (201) when the radar (201) extends and contracts.
13. Vehicle (200) according to claim 12, characterized in that said cleaning assembly (80) further comprises a second elastic element (83), said second elastic element (83) being connected between said hull (202) and said elastic cover plate (81) to restore said elastic cover plate (81) after said radar (201) has passed through said through hole (203).
14. The vehicle (200) according to claim 12, wherein the number of the cleaning assemblies (80) is two, two elastic cover plates (81) are respectively arranged on two sides of the through hole (203) and extend oppositely, and the shape of each cleaning piece (82) is matched with the shape of the outer wall of the radar (201) so as to clean the radar (201) passing through the through hole (203).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010659260.5A CN111891045B (en) | 2020-07-09 | 2020-07-09 | Radar protection device and vehicle |
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| CN202010659260.5A CN111891045B (en) | 2020-07-09 | 2020-07-09 | Radar protection device and vehicle |
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| CN111891045A true CN111891045A (en) | 2020-11-06 |
| CN111891045B CN111891045B (en) | 2021-12-10 |
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| WO2022237847A1 (en) * | 2021-05-12 | 2022-11-17 | 武汉路特斯汽车有限公司 | Laser radar integrated device and vehicle provided with same |
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| CN111891045B (en) | 2021-12-10 |
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