CN202646671U - Parking mechanism and vehicle - Google Patents

Parking mechanism and vehicle Download PDF

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Publication number
CN202646671U
CN202646671U CN 201220239076 CN201220239076U CN202646671U CN 202646671 U CN202646671 U CN 202646671U CN 201220239076 CN201220239076 CN 201220239076 CN 201220239076 U CN201220239076 U CN 201220239076U CN 202646671 U CN202646671 U CN 202646671U
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CN
China
Prior art keywords
ratchet
halting mechanism
swing arm
advances
described ratchet
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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CN 201220239076
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Chinese (zh)
Inventor
郝璐
刘春磊
陈广全
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN 201220239076 priority Critical patent/CN202646671U/en
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Publication of CN202646671U publication Critical patent/CN202646671U/en
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Abstract

The utility model discloses a parking mechanism, which comprises a pawl (1), a ratchet wheel (2) and a transmission shaft (3), wherein the ratchet wheel (2) is meshed with the pawl (1); the ratchet wheel (2) is arranged on a main shaft. The parking mechanism also comprises a bottom plate support (4), a swing arm (6), a rocker arm riveting pin (7) and a pawl propelling sleeve (8), wherein the pawl propelling sleeve (8) is used for pushing the pawl (1) to rotate; the pawl (1) is arranged on the bottom plate support (4); one end of the transmission shaft (3) is connected with a motor; the other end of the transmission shaft (3) passes through the bottom plate support (4) to be connected with one end of the swing arm (6); the other end of the swing arm (6) is fixedly arranged on the rocker arm riveting pin (7); and the rocker arm riveting pin (7) is also connected with one end of the pawl propelling sleeve (8) and can be used for driving the pawl propelling sleeve (8) to move. The utility model also provides a vehicle comprising the parking mechanism. According to the parking mechanism disclosed by the utility model, power required by the motor is reduced, and the internal layout of a speed changing box is more reasonable.

Description

A kind of halting mechanism and vehicle
Technical field
The utility model relates to a kind of halting mechanism and vehicle.
Background technique
Automatic gearbox of vehicles generally all comprises D gear, N gear, R gear and four gears of P gear, the P gear is the Parking gear, the most of forerunner's mode that adopts of electric motor car, parking braking then is that trailing wheel is carried out friction catch, parking brake need to be moved in the parking braking control range, manual operation often exists parking brake not move the situation of position in the Parking process, causes braking force less, can not be fully locked wheel.Particularly when electric vehicle stops in the ramp, use the friction parking braking, use separately parking brake, vehicle might be because of the fully not locked sloping phenomenon of slide that occurs.
The P retaining device is installed, and is the dual fail-safe measure to parking lock, the P retaining device in the existing design, and complex structure, the installing/dismounting difficulty, the volume that takes up room is large.The P gear ratchet of existing design is installed on the countershaft, and P gear releasing force is relatively large, and corresponding required P keeps off the increase of output power of motor, the required motor the increase of output power, corresponding volume also can increase thereupon, takies gearbox than large space, is unfavorable for that like this space of gearbox is arranged.
The model utility content
Affect greatly the problem of gearbox internal space layout for solving existing P gear releasing force, the utility model provides a kind of halting mechanism, and the motor power demand is reduced, and the gearbox interior layout is more reasonable.
The technical solution of the utility model is.
A kind of halting mechanism comprises: ratchet (1), the ratchet that is meshed with ratchet (2) and transmission shaft (3), wherein: described ratchet (2) is installed on the main shaft of gearbox, halting mechanism also comprises subplate bearer (4), swing arm (6); rocking arm riveting pin (7) and be used for promotes the ratchet that described ratchet (1) rotates and to advance cover (8); described ratchet (1) is installed on the described subplate bearer (4); an end of described transmission shaft (3) is connected with motor; the other end of described transmission shaft (3) passes subplate bearer (4) and is connected with an end of swing arm (6); the other end of described swing arm (6) is fixed on the rocking arm riveting pin (7), described rocking arm riveting pin (7) also advance cover (8) to be connected also can to drive described ratchet propelling to overlap (8) with ratchet and move.
As further improvement of the utility model, described ratchet advances cover (8) to comprise that ratchet advances sleeve spring axle (81), ratchet advances sleeve spring (82) and ratchet propelling sleeve (83), it is connecting end that described ratchet advances an end of sleeve spring axle (81), described connecting end is connected with described rocking arm riveting pin (7), described ratchet propelling sleeve (83) slidably is installed in described ratchet propelling sleeve spring axle (81) and is resisted against on the described ratchet (1), described ratchet advances sleeve spring (82) to be sleeved on described ratchet and advances on the sleeve spring axle (81), described ratchet advances an end of sleeve spring (82) to be resisted against on the described connecting end, and described ratchet advances the other end of sleeve spring (82) to be resisted against on the described ratchet propelling sleeve (83).
Halting mechanism also comprises swing arm axle sleeve (5), and described transmission shaft (3) passes subplate bearer (4) and described swing arm axle sleeve (5) is connected with an end of swing arm (6).
Halting mechanism also comprises limiting bracket (11), described limiting bracket (11) is provided with limiting bracket groove (18) near an end of described ratchet (1), described ratchet (1) advances an end of cover (8) to be provided with detent recess (103) near described ratchet, described ratchet advances cover (8) between described limiting bracket groove (18) and described detent recess (103), and perpendicular to the plane of described ratchet (1) and described limiting bracket (11).
As preferred mechanism, halting mechanism also comprises described limit spring plate (9), one end of described limit spring plate (9) is connected on the described limiting bracket (11), the other end is concavo-convex wave-shaped groove (19), and described swing arm riveting pin (7) also can slide in described concavo-convex wave-shaped groove (19) against described concavo-convex wave-shaped groove (19).
As preferred mechanism further, the both sides of described limit spring plate (9) respectively are provided with the first elastic cylinder (20) and the second elastic cylinder (21), and the first elastic cylinder (20) and the second elastic cylinder (21) are separately fixed on the described subplate bearer (4).
As preferred mechanism further, described swing arm riveting pin (7) is formed by the different cylindrical body series connection of diameter, the cylinder of described swing arm riveting pin (7) mid diameter maximum links to each other with described swing arm (6) one ends, one end of described swing arm riveting pin (7) is against described limit spring plate (9), and the other end advances cover (8) to link to each other with described ratchet.Described swing arm riveting pin (7) has rocking arm riveting pin cylinder (17) against the position outer race of described concavo-convex wave-shaped groove (19).
Halting mechanism also comprises ratchet back shaft (16), ratchet the first dunnage (10) and ratchet the second dunnage (13), described ratchet the first dunnage (10) and described ratchet the second dunnage (13) are in described ratchet (1) both sides and be fixed on the described subplate bearer (4), and described ratchet back shaft (16) passes successively described ratchet the first dunnage (10), described ratchet (1) and described ratchet the second dunnage (13) and is installed on the described subplate bearer (4) described ratchet (1) is rotating.
Described ratchet (1) is provided with Returnning spring mounting groove (101), and halting mechanism also comprises Returnning spring (12), and described Returnning spring (12) one ends are installed in the described Returnning spring mounting groove (101), and the other end is against described subplate bearer (4).
As preferred mechanism further, described transmission shaft (3) is provided with axle groove (14) near a side of described subplate bearer (4), and circlip for shaft (15) is installed on the described axle groove (14).
A kind of vehicle, described vehicle comprises above-mentioned halting mechanism.
The utlity model has following advantage: the ratchet of halting mechanism is installed on the main shaft, has reduced releasing force, and the motor power demand is reduced, and motor volume reduces, and it is little that whole halting mechanism is taken up room, and is conducive to the gearbox layout.
Description of drawings
Fig. 1 is the structural representation of a kind of mode of execution of the utility model halting mechanism.
View when Fig. 2 is the utility model halting mechanism locking.
Fig. 3 is the structural representation that the ratchet of the utility model halting mechanism advances cover.
Fig. 4 is the structural representation of the ratchet of the utility model halting mechanism.
Embodiment
Clearer for technical problem, technological scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Below in conjunction with accompanying drawing the utility model is done further detailed description.
Shown in Fig. 1-4, the halting mechanism of a kind of mode of execution of the utility model, comprise ratchet 1, the ratchet 2(Fig. 1 that is meshed with ratchet is not shown) and transmission shaft 3, described ratchet 2 is installed on the main shaft, halting mechanism also comprises subplate bearer 4, swing arm 6; rocking arm riveting pin 7 and be used for promotes the ratchet that described ratchet 1 rotates and to advance cover 8; described ratchet 1 is installed on the described subplate bearer 4; end of described transmission shaft 3 is connected with motor; the other end of described transmission shaft 3 passes vertical connection of an end of subplate bearer 4 and swing arm 6; described swing arm 6 is designed to flat straight plate structure; described swing arm 6 both sides have two circular holes; one of them circular hole links to each other with described transmission shaft 3; another circular hole and described rocking arm riveting pin 7 vertical weldings, described rocking arm riveting pin 7 are overlapped 8 one ends near an end of described ratchets 2 and described ratchet propelling and are connected and also can drive described ratchet propelling and overlap 8 and move.
As shown in figs. 1 and 3, described ratchet advances cover 8 to comprise that ratchet advances sleeve spring axle 81, ratchet advances sleeve spring 82 and ratchet propelling sleeve 83, it is connecting end that described ratchet advances an end of sleeve spring axle 81, described connecting end and described 7 vertical being connected of rocking arm riveting pin, described ratchet propelling sleeve 83 slidably is installed in described ratchet propelling sleeve spring axle 81 and is resisted against on the described ratchet 1, described ratchet advances sleeve spring 82 to be sleeved on described ratchet and advances on the sleeve spring axle 81, described ratchet advances an end of sleeve spring 82 to be resisted against on the described connecting end, and described ratchet advances the other end of sleeve spring 82 to be resisted against on the described ratchet propelling sleeve 83.
In the implementation, halting mechanism also comprises swing arm axle sleeve 5 and limiting bracket 11, described swing arm axle sleeve 5 and described limiting bracket 11 are fixed on the described subplate bearer 4 with described ratchet 1 homonymy, and described transmission shaft 3 passes subplate bearer 4 and described swing arm axle sleeve 5 is connected with an end of swing arm 6.Described limiting bracket 11 is on the same plane with described ratchet 1.
As shown in figs. 1 and 4, described limiting bracket 11 is provided with limiting bracket groove 18 by an end of described ratchet 1, described ratchet 1 advances an end of cover 8 to be provided with detent recess 103 by described ratchet, described ratchet advances cover 8 between described limiting bracket groove 18 and described detent recess 103, and perpendicular to described ratchet 1 and described limiting bracket 11 residing planes.Front end and described limiting bracket 11 in the described detent recess 103 of released state lean.
In the implementation, halting mechanism also comprises described limit spring plate 9, one end of described limit spring plate 9 is fixed on the described limiting bracket 11, the other end is concavo-convex wave-shaped groove 19, and described swing arm riveting pin 7 also can slide up and down in described concavo-convex wave-shaped groove 19 in engage a gear and release against described concavo-convex wave-shaped groove 19.
Need to prove at this: the both sides of described limit spring plate 9 respectively are provided with the first elastic cylinder 20 and the second elastic cylinder 21, the first elastic cylinder 20 and the second elastic cylinder 21 are separately fixed on the subplate bearer 4, and described the first elastic cylinder 20 plays the effect of the mounting point of the described limit spring plate 9 of restriction; It is excessive that described the second elastic cylinder 21 plays described limit spring plate 9 distortion that cause for the output torque that prevents motor is excessive, thereby surpass the effect that the described limit spring plate 9 maximum distortion strokes that allow own affect the working life of described limit spring plate 9.
Need to prove at this: described swing arm riveting pin 7 is formed by the different cylindrical body series connection of diameter, the cylinder of described swing arm riveting pin 7 mid diameter maximums welds mutually with described swing arm 6 one end circular holes, one end of described swing arm riveting pin 7 is against described limit spring plate 9, and the other end advances sleeve spring axle 81 to link to each other with described ratchet.When described swing arm riveting pin 7 moves up and down under the drive of described swing arm 6, advance sleeve spring axle 81 to move up and down thereby drive described ratchet.Described swing arm riveting pin 7 has rocking arm riveting pin cylinder 17 against the position outer race of described concavo-convex wave-shaped groove 19.
In the implementation, halting mechanism also comprises ratchet back shaft 16, ratchet the first dunnage 10 and ratchet the second dunnage 13, described ratchet the first dunnage 10 and described ratchet the second dunnage 13 are in described ratchet 1 both sides and be fixed on the described subplate bearer 4, and described ratchet back shaft 16 passes described ratchet the first dunnage 10, described ratchet 1 and described ratchet the second dunnage 13 successively with described ratchet 1 rotating being installed on the described subplate bearer 4.
In the implementation, described ratchet 1 is provided with described Returnning spring mounting groove 101, halting mechanism also comprises Returnning spring 12, described Returnning spring 12 1 ends are installed in the described Returnning spring mounting groove 101, and the other end is against described subplate bearer 4, when the halting mechanism locking, described ratchet advances cover 8 to move down, described ratchet 1 by described ratchet advance cover 8 to described ratchet 2 directions promote and with ratchet 2 engagements, at this moment, described Returnning spring 12 is compressed; When the halting mechanism release, described ratchet advances cover 8 to move up, the described 12 recovery elastic strains that reset, and described ratchet 1 is separated with described ratchet 2 under the promotion of described Returnning spring 12.
As shown in Figure 2, locate in opposite directions to be provided with pawl teeth near described detent recess 103 ends and with described ratchet 2 in the described ratchet 1, when described pawl teeth and 2 engagements of described ratchet, play the effect of locking.
Need to prove at this: transmission shaft 3 is provided with axle groove 14 near a side of described subplate bearer 4, on the described axle groove 14 circlip for shaft 15 is installed.Described circlip for shaft 15 can be fixed the two ends, the left and right sides of described transmission shaft 3.
The below illustrates the specific works engineering of the utility model parking lock device.
As shown in Figure 2, when the needs Parking, the operation of controller control motor, the described transmission shaft 3 of driven by motor rotates, described transmission shaft 3 passes vertical being connected of an end of subplate bearer 4 and described swing arm axle sleeve 5 and described swing arm 6, therefore described swing arm 6 is rotated under the drive of described transmission shaft 3, and then the described rocking arm riveting pin 7 that drive links to each other with described swing arm 6 moves down, and described rocking arm riveting pin 7 moves down and drives described ratchet and advance cover 8 to move down, described ratchet 1 overcomes gradually the active force of Returnning spring 12 and promotes described ratchet 1 to described ratchet 2 rotations under the promotion of described ratchet propelling cover 8, thereby realizes Parking so that the lucky tooth with described ratchet 2 of pawl teeth meshes.
Another kind of situation during Parking is: when described ratchet 1 overcomes gradually the active force of Returnning spring 12 and promotes described ratchet 1 to described ratchet 2 rotations under the promotion of described ratchet propelling cover 8, when the lucky tooth top with described ratchet 2 of pawl teeth is relative, the described ratchet of described ratchet propelling sleeve 83 compressions this moment advances sleeve spring 82, and the tooth top of pawl teeth and described ratchet 2 is relative and do not have a real Parking.After this, if wheel of vehicle is moved, main shaft drives described ratchet 2 and rotates a less angle thereupon, described ratchet propelling sleeve 83 overcomes gradually the active force of Returnning spring 12 and continues to promote described ratchet 1 and rotate to described ratchet 2, thereby realizes Parking so that the tooth of pawl teeth and described ratchet 2 meshes under the effect of described ratchet propelling sleeve spring 82.
When needs are removed Parking, controller control motor inverted running, described transmission shaft 3 backward rotation of driven by motor, described transmission shaft 3 passes vertical being connected of an end of subplate bearer 4 and described swing arm axle sleeve 5 and described swing arm 6, so described swing arm 6 counter-rotation under the drive of described transmission shaft 3, and then the described rocking arm riveting pin 7 that drive links to each other with described swing arm 6 moves up, and described rocking arm riveting pin 7 moves up and drives described ratchet and advance cover 8 to move up, described ratchet 1 makes described ratchet 1 rotate to the direction away from described ratchet 2 under the opposition of Returnning spring 12, thereby removes Parking so that pawl teeth is separated with the tooth of described ratchet 2.
The utility model also provides a kind of vehicle, and described vehicle comprises halting mechanism, and described halting mechanism is above-mentioned halting mechanism.
Halting mechanism of the present utility model, ratchet are installed on the main shaft, have reduced releasing force, and the motor power demand is reduced, and motor volume reduces, and it is little that whole halting mechanism is taken up room, and is conducive to the gearbox layout.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims (12)

1. halting mechanism, comprise ratchet (1), the ratchet that is meshed with ratchet (2) and transmission shaft (3), it is characterized in that: described ratchet (2) is installed on the main shaft of gearbox, halting mechanism also comprises subplate bearer (4), swing arm (6); rocking arm riveting pin (7) and be used for promotes the ratchet that described ratchet (1) rotates and to advance cover (8); described ratchet (1) is installed on the described subplate bearer (4); an end of described transmission shaft (3) is connected with motor; the other end of described transmission shaft (3) passes subplate bearer (4) and is connected with an end of swing arm (6); the other end of described swing arm (6) is fixed on the rocking arm riveting pin (7), described rocking arm riveting pin (7) also advance cover (8) to be connected also can to drive described ratchet propelling to overlap (8) with ratchet and move.
2. halting mechanism as claimed in claim 1, it is characterized in that: described ratchet advances cover (8) to comprise that ratchet advances sleeve spring axle (81), ratchet advances sleeve spring (82) and ratchet propelling sleeve (83), it is connecting end that described ratchet advances an end of sleeve spring axle (81), described connecting end is connected with described rocking arm riveting pin (7), described ratchet propelling sleeve (83) slidably is installed in described ratchet propelling sleeve spring axle (81) and is resisted against on the described ratchet (1), described ratchet advances sleeve spring (82) to be sleeved on described ratchet and advances on the sleeve spring axle (81), described ratchet advances an end of sleeve spring (82) to be resisted against on the described connecting end, and described ratchet advances the other end of sleeve spring (82) to be resisted against on the described ratchet propelling sleeve (83).
3. halting mechanism as claimed in claim 1, it is characterized in that: halting mechanism also comprises swing arm axle sleeve (5), described transmission shaft (3) passes subplate bearer (4) and described swing arm axle sleeve (5) is connected with an end of swing arm (6).
4. the halting mechanism of stating such as claim 1, it is characterized in that: halting mechanism also comprises limiting bracket (11), described limiting bracket (11) is provided with limiting bracket groove (18) near an end of described ratchet (1), described ratchet (1) advances an end of cover (8) to be provided with detent recess (103) near described ratchet, described ratchet advances cover (8) between described limiting bracket groove (18) and described detent recess (103), and perpendicular to the plane of described ratchet (1) and described limiting bracket (11).
5. halting mechanism as claimed in claim 4, it is characterized in that: halting mechanism also comprises described limit spring plate (9), one end of described limit spring plate (9) is fixed on the described limiting bracket (11), the other end is concavo-convex wave-shaped groove (19), and described swing arm riveting pin (7) also can slide in described concavo-convex wave-shaped groove (19) against described concavo-convex wave-shaped groove (19).
6. halting mechanism as claimed in claim 5, it is characterized in that: the both sides of described limit spring plate (9) respectively are provided with the first elastic cylinder (20) and the second elastic cylinder (21), and the first elastic cylinder (20) and the second elastic cylinder (21) are separately fixed on the described subplate bearer (4).
7. halting mechanism as claimed in claim 5, it is characterized in that: described swing arm riveting pin (7) is formed by the different cylindrical body series connection of diameter, the cylinder of described swing arm riveting pin (7) mid diameter maximum links to each other with described swing arm (6) one ends, one end of described swing arm riveting pin (7) is against described limit spring plate (9), and the other end advances cover (8) to link to each other with described ratchet.
8. halting mechanism as claimed in claim 5, it is characterized in that: described swing arm riveting pin (7) has rocking arm riveting pin cylinder (17) against the position outer race of described concavo-convex wave-shaped groove (19).
9. halting mechanism as claimed in claim 1, it is characterized in that: halting mechanism also comprises ratchet back shaft (16), ratchet the first dunnage (10) and ratchet the second dunnage (13), described ratchet the first dunnage (10) and described ratchet the second dunnage (13) are in described ratchet (1) both sides and be fixed on the described subplate bearer (4), and described ratchet back shaft (16) passes described ratchet the first dunnage (10) successively, described ratchet (1) and described ratchet the second dunnage (13) are installed on the described subplate bearer (4) described ratchet (1) is rotating.
10. halting mechanism as claimed in claim 1, it is characterized in that: described ratchet (1) is provided with Returnning spring mounting groove (101), halting mechanism also comprises Returnning spring (12), described Returnning spring (12) one ends are installed in the described Returnning spring mounting groove (101), and the other end is against described subplate bearer (4).
11. halting mechanism as claimed in claim 1 is characterized in that: described transmission shaft (3) is provided with axle groove (14) near a side of described subplate bearer (4), and circlip for shaft (15) is installed on the described axle groove (14).
12. a vehicle, described vehicle comprises halting mechanism, it is characterized in that: described halting mechanism is the described halting mechanism of claim 1-11 any one.
CN 201220239076 2012-05-25 2012-05-25 Parking mechanism and vehicle Expired - Lifetime CN202646671U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220239076 CN202646671U (en) 2012-05-25 2012-05-25 Parking mechanism and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220239076 CN202646671U (en) 2012-05-25 2012-05-25 Parking mechanism and vehicle

Publications (1)

Publication Number Publication Date
CN202646671U true CN202646671U (en) 2013-01-02

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CN 201220239076 Expired - Lifetime CN202646671U (en) 2012-05-25 2012-05-25 Parking mechanism and vehicle

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104989805A (en) * 2015-07-02 2015-10-21 李广连 Locking bar mechanism for gear stopping
CN105774771A (en) * 2016-03-02 2016-07-20 贝加尔(浙江)汽车零部件有限公司 Vehicle and parking operating lever assembly thereof
CN115076367A (en) * 2021-03-12 2022-09-20 北汽福田汽车股份有限公司 Parking mechanism and vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104989805A (en) * 2015-07-02 2015-10-21 李广连 Locking bar mechanism for gear stopping
CN105774771A (en) * 2016-03-02 2016-07-20 贝加尔(浙江)汽车零部件有限公司 Vehicle and parking operating lever assembly thereof
CN115076367A (en) * 2021-03-12 2022-09-20 北汽福田汽车股份有限公司 Parking mechanism and vehicle

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Granted publication date: 20130102

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