Tailgate bike rack with ball joint for car

Abstract

Ball-joint tailgate bicycle rack for car The present invention discloses a ball-joint tailgate bicycle rack for car, wherein: a driving member (3) is arranged on a support mechanism (1); a clamping assembly comprises a clamping seat (4), a first locker, a second locker, and a first mounting and a second mounting opposite to each other, and a movable lock is arranged between the clamping seat (4) and the driving member (3) of the support mechanism (1). By using a manipulating member (2), the locking or unlocking of the rear tow ball by the clamping seat (4) can be realized by means of the pivoting activity of the driving member (3) and the clamping seat (4), and the disassembly and assembly operations of the tailgate bicycle rack and the car tailgate can be quickly realized, easy and quick to manipulate. Figure to be published with the abstract: Figure 1

Description

Title of the invention: Tailgate bicycle rack with ball joint for cars Technical field

[0001] The present invention belongs to the technical field of automotive products, in particular it relates to a tailgate bicycle rack with ball joint for cars. Technical background

[0002] A tailgate bike rack is for mounting on the tailgate of a car, a device for carrying bicycles, in order to solve troublesome problems on transporting bicycles in cars due to the bulkiness of bicycles, highly sought after by cycling enthusiasts. In the prior art, in order to prevent the tailgate bicycle rack from obstructing the opening of the trunk lid of the car, the tailgate bicycle rack is generally a folding mechanism, the folding mechanism is provided with a ball clamp, the ball clamp hooks onto the tow ball on the tailgate of the car, and the folding mechanism is unfolded, so that the bicycle rack forms a platform for placing bicycles. However, the tailgate bicycle rack, in practice, needs to be constantly assembled and disassembled, and the ball clamp needs to be manipulated to lock or unlock, which is a tedious operation process and inconvenient to use. Statement of the invention

[0003] The objective of the present invention is to solve the shortcomings of said technology and to design a ball-joint tailgate bicycle rack for car, by holding the movable manipulation member by hand for connecting activities in a pivoting manner using the driving member and the clamping seat to realize the locking or unlocking of the clamping seat to the tow ball, allowing to quickly complete the disassembly and assembly of rear bicycle rack and tailgate, easy to operate and more convenient to use.

[0004] In order to solve said technical problems, the technical solution of the present invention is as follows: a tailgate bicycle rack with ball joint for a car, comprising:

[0005] a support mechanism, said support mechanism being for supporting and placing bicycles, said support mechanism being provided with a drive element;

[0006] a clamping assembly, the clamping assembly comprising a clamping seat, a first locker, a second locker, and a first mounting and a second mounting opposed to each other, said clamping seat being pivotally connected to said drive member, said first mounting and said second mounting being pivotally connected to said clamping seat, the second locker being disposed on said clamping seat, and said first mounting and said second mounting being configured to clamp a tow ball of a car tailgate, in order to fix said clamping seat to the tow ball of the car tailgate;

[0007] a movable lock, said movable lock being disposed between said clamping seat and said drive element of said support mechanism;

[0008] when said support mechanism is tilted to the folded state, said movable lock and the first locker fit into each other; when said support mechanism is tilted to the unfolded state, said movable lock and the second locker fit into each other.

[0009] Preferably, the clamping assembly also comprises a switching structure pivotally connected to said clamping seat, said switching structure being provided with a first rail groove and a second rail groove interconnected and intersecting, said first lock being disposed in said switching structure;

[0010] when said switching structure rotates and transitions to a first position state, a position pin of said first assembly is located in said second rail groove, so that said first assembly is in an unlocked state;

[0011] when said switching structure rotates and transitions to a second position state, the position pin of said first assembly is moved from said second rail groove to said first rail groove, so that said first assembly is in a locked state.

[0012] Preferably, said support mechanism comprises a connecting frame and a support frame, and two support arms respectively pivotally connected to both sides of said support frame, said connecting frame and said support frame being pivotally connected to each other, said drive element being fixedly arranged on said connecting frame, said drive element and said second mounting pivoting respectively about the same axis and being arranged in said clamping seat, a handling element being movably arranged on said support frame, said support frame being equipped with a self-locking mechanism, so that said connecting frame and said support frame lock each other when said support frame is in the unfolded state, said self-locking mechanism being connected to said handling element.

[0013] Preferably, said movable lock comprises a sliding element and a latching pin which is arranged on said sliding element, the first locker and the second locker all being grooves intended to couple with said latching pin, said sliding element being retractably and movably arranged on said driving element, a first elastic element being arranged between said sliding element and said connecting frame in order to automatically restore said sliding element.

[0014] Preferably, the traction body of said manipulation element is connected to the sliding element, or the traction body of said manipulation element passes through said connecting frame to be connected to the sliding element, said connecting frame being provided with a locking device for locking the sliding element.

[0015] Preferably, said self-locking mechanism comprises a first hooking component pivotally connected to said support frame, one end of a third torsion spring on said support frame abutting against a side opposite a carabiner portion on said first hooking component, and when said support frame is in the unfolded state, the carabiner portion of said first hooking component hooks onto a first connecting pin on said connecting frame.

[0016] Preferably, said self-locking mechanism also comprises a second hooking component pivotally connected to said support frame, a post member being pivotally connected to the portion of said self-locking mechanism on the support frame, the other end of said third torsion spring on said support frame abutting against a side opposite the carabiner portion on said second hooking component, the carabiner portion on said second hooking component hooking to a second connecting pin pivotally connected to said post member.

[0017] Preferably, said self-locking mechanism also comprises a limiting structure, said limiting structure being movably arranged on said support frame, a second elastic element being arranged between a first end of said limiting structure and a fixing component of said support frame, a second end of said limiting structure being connected to the end of said support frame crossed by the manipulation element;

[0018] said first hooking component and said second hooking component all rotate in a limited manner and are disposed within the movable space of said limiting structure, and said limiting structure is provided with a first contact member which abuts against said first hooking component, and a second contact member abutting against said second hooking component, respectively;

[0019] said self-locking mechanism is arranged on both sides of said support frame.

[0020] Preferably, in said clamping seat, the bicycle rack has a first shaft rotary and a second rotary shaft; said first assembly rotates around said first rotary shaft and is disposed in said clamping seat, said first rotary shaft is fitted with a first torsion spring, the ends of said first torsion spring are respectively in abutment against said clamping seat and said first mounting; said second mounting rotates around the second rotary shaft and is disposed in said clamping seat, said second rotary shaft is engaged with a second torsion spring, the ends of said second torsion spring abut respectively against said drive member and said second mounting; an arcuate support is engaged between said first rotary shaft and said second rotary shaft.

[0021] Preferably, a third elastic element is arranged between said switching structure and said clamping seat, such that said switching structure tends to return to the second position state.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] The support mechanism of the present invention is pivotally connected to a clamping seat which can be mounted on the tailgate hitch ball by means of a driving member, by holding the movable manipulation member by hand for the connecting activities pivotally using the driving member and the clamping seat to realize the locking or unlocking of the clamping seat to the hitch ball, enabling the disassembly and assembly of tailgate bicycle racks and the car tailgate to be completed quickly, easy to operate and more convenient to use. Brief description of the drawings

[0024] [Fig. 1] is a diagram of the structure of said tailgate bicycle rack in embodiment I;

[0025] [Fig.2] is a diagram of the structure of said tailgate bicycle rack in embodiment II;

[0026] [Fig.3] is a sectional view of said tailgate bicycle rack in the embodiment;

[0027] [Fig.4] is a diagram of the structure of said connecting frame and said seat of tightening in the embodiment;

[0028] [Fig.5] is a diagram of the structure of said connecting frame and said clamping seat when said switching structure is in the second position state in the embodiment;

[0029] [Fig.6] is a sectional view of said connecting frame and said clamping seat when said switching structure is in the second position state in the embodiment;

[0030] [Fig.7] is a diagram of the structure of said connecting frame and said clamping seat when said switching structure is in the first position state in the embodiment;

[0031] [Fig.8] is a sectional view of said connecting frame and said clamping seat when said switching structure is in the first position state in the embodiment;

[0032] [Fig.9] is a diagram of the structure of said tailgate bicycle rack in the case where said connecting frame and said support frame are folded in the embodiment;

[0033] [Fig. 10] is a diagram of the structure of said tailgate bicycle rack in the case where the upright element and said support frame are folded in the embodiment.

[0034] In the figures: 1. support mechanism; 11. connecting frame; 12. support frame; 13. support arm; 1101. first connecting pin; 2. handling element; 201. traction body; 3. driving element; 301. moving edge; 302. positioning edge; 303, moving groove; 4. clamping seat; 401. snap groove; 402. arcuate support; 403. guiding edge; 5. first assembly; 501. position pin; 502. first rotating shaft; 503. first torsion spring; 6. second assembly; 601. second rotating shaft; 602. second torsion spring; 7. switching structure; 701. first rail groove; 702. second rail groove; 703. driving component; 8. moving lock; 81. sliding element; 82. snap pin; 801. first elastic element; 802. guiding column; 9. self-locking mechanism; 91. first hooking component; 92. second hooking component; 93. limiting structure; 901. third torsion spring; 902. fixing component; 903. second elastic element; 904. first contact element; 905.second contact element; 10. locking device; 14. upright element; 1401. second connecting pin; 15. third elastic element; 16. folding lamp body; 17. connecting sleeve; 18. rear light; 19. protective shell.

[0035] Detailed description of particular embodiments

[0036] The present invention is described in more detail below with reference to the accompanying figures and specific embodiments.

[0037] Referring to [Fig.l] to [Fig.8], a ball-joint tailgate bicycle rack for a car comprises a support mechanism 1, a handling member 2, a folding lamp body 16, and a clamping assembly, a support mechanism 1 comprising a connecting frame 11, a support frame 12, and two support arms 13, the connecting frame 11 and the support frame 12 being pivotally movable, the two support arms 13 being pivotally arranged on both sides of the support frame 12 for supporting two wheels of a bicycle respectively, the support arms 13 being snap-coupled with the corresponding side of the support frame 12 when fully extended outwardly away from the support frame 12, and the support arm 13 being engaged with the corresponding side of the support frame 12.

[0038] The connecting frame 11 has a U-shaped frame structure, the supporting frame 12 comprises two hollow rod structures, the folding lamp body 16 has two connecting sleeves 17 arranged symmetrically, the two connecting sleeves 17 are respectively nested to fit the two rod structures, so as to enable the folding lamp body 16 to be detachably connected to the supporting mechanism 1, and the movable taillights 18 which can be folded inward are pivotally connected to both sides of the folding lamp body 16.

[0039] Referring to [Fig.2] and [Fig.3], the manipulation member 2 is retractably and movably arranged on the support frame 12, both sides of the support frame 12 are arranged empty and a self-locking mechanism 9 is arranged in its empty cavity, the self-locking mechanism 9 comprises a second hooking component 92 and a first hooking component 91 pivotally connected to the support frame 12, and a limiting structure 93 movably arranged on the inner wall of the support frame 12, and a snap hook portion is formed in an opposite lower portion of the second hooking component 92 and the first hooking component 91, a third torsion spring 901 is positionedly arranged on the inner wall of the support frame 12,and the two ends of the third torsion spring 901 respectively hook onto the opposite sides of the second hooking component 92 and the first hooking component 91, so that the second hooking component 92 tends to rotate away from the first hooking component 91, and the second hooking component 92 and the first hooking component 91 all rotate in a limited manner and are arranged in a movable space of the limiting structure 93, and the limiting structure 93 is respectively provided with a first contact member 904 which hooks onto the first hooking component 91 and a second contact member 905 which hooks onto the second hooking component 92, and a second elastic member 903 is arranged between the first end of the limiting structure 93 and the fixing component 902 of the inner wall of the support frame 12, and the second elastic member 903 is a spring structure,and the second end of the limiting structure 93 is connected to the end of the support frame 12 through which the manipulation member 2 passes, to enable the self-locking mechanism 9 to connect to the manipulation member 2; the support frame 12 has both sides of the self-locking mechanism 9 which are pivotally connected to both sides of the post member 14; when the post member 14 and the support frame 12 are fully unfolded, the second hooking component 92 passes through the end of the support frame 12 and engages with the second connecting pin 1401 of the post member 14 to lock the position of the post member 14, and the support frame 12 to maintain the unfolded state therebetween; When the connecting frame 11 and the support frame 12 are fully unfolded, the first hooking component 91 passes through the end of the support frame 12 and engages with the first connecting pin 1101 of the connecting frame 11 to lock the position of the connecting frame 11 and the support frame 12 to maintain the unfolded state therebetween;when the manipulation element 2 actuates, it enables the limiting structure 93 to be moved to action, so that the second hooking component 92 is driven by the second contact element 905 to overcome the rotation of the third torsion spring 901 to unlock the second connecting pin 1401 so that the user can fold the post member 14 and the support frame 12, or the first hooking component 91 is driven by the first contact element 904 to overcome the notation of the third torsion spring 901 and unlock the first connecting pin 1101 so that the user can fold the connecting frame 11 and the support frame 12, as shown in [Fig. 9] and [Fig. 10]. ;

[0040] With reference to [Fig.4], the clamping assembly comprises a clamping seat 4, a first locker, a second locker, a first mounting 5 and a second mounting 6 opposite each other. The connecting frame 11 is fixedly equipped with a drive member 3, and a protective shell 19 is arranged on the outer side of the clamping seat 4. The rear hitch ball of the car tailgate passes through the protective shell 19 and is detachably connected to the clamping seat 4, the first mounting 5 and the second mounting 6 are all pivotally connected inside the clamping seat 4, The clamping seat 4 is equipped with a first rotating shaft 502 and a second rotating shaft 601, and the first mounting 5 rotates around the first rotating shaft 502 and is set inside the clamping seat 4, the first rotating shaft 502 is sheathed with a first torsion spring 503,the two ends of the first torsion spring 503 respectively hook onto the clamping seat 4 and the first fixture 5, so that the first fixture 5 tends to deviate outward; the second fixture 6 rotates around the second rotating shaft 601 and is arranged inside the clamping seat 4, the driving member 3 rotates around the second rotating shaft 601 and is arranged inside the clamping seat 4, the second rotating shaft 601 is sheathed with a second torsion spring 602, and the two ends of the second torsion spring 602 are respectively abutted against the driving member 3 and the second fixture 6, so that the second fixture 6 tends to deviate in a limited manner; an arcuate support 402 is provided between the first rotary shaft 502 and the second rotary shaft 601, the arcuate support 402 serving to support and position the first rotary shaft 502 and the second rotary shaft 601, , ensuring stable rotation of the first rotary shaft 502 and the second rotary shaft 601, and preventing their radial or axial movement.

[0041] Referring to [Fig.5], [Fig.6], [Fig.7] and [Fig.8], the clamping seat 4 is pivotally connected to a switching structure 7, the switching structure 7 consists of two parallel switching plates, the switching plate is provided with a first rail groove 701 and a second rail groove 702 interconnected and intersected, and the driving member 3 switches the switching structure 7 from the second position state to the first position state by means of a movable latch 8 connected to the handling member 2, said first rail groove 701 forming a clamping angle with said second rail groove 702, the clamping angle being an acute or right angle;

[0042] The movable lock 8 comprises a sliding member 81 and a latching pin 82 fitted on the sliding member 81, the first locker and the second locker are all grooves for coupling with said latching pin 82, the two ends of the latching pin 82 pass through the clamping seat 4 and are operatively coupled with the two switching plates respectively, and the sliding member 81 is provided with a guide column 802 which is fitted to fit the connecting frame 11, so as to enable the sliding member 81 to be retractably and movably arranged along the axial direction of the guide column 802 inside the driving member 3,the driving member 3 is provided with a displacement groove 303 passing therethrough and slidably connected to the end of the engagement pin 82 to restrict the sliding activity of the position pin 501 along the axial direction of the guide column 802.

[0043] A first elastic member 801 is provided between the sliding member 81 and the connecting frame 11, the first elastic member 801 is a spring structure and hooked on the guide column 802, in order to allow the sliding member 81 to tend to approach the clamping seat 4, and to realize automatic recovery of the sliding member 81, the traction body 201 of the manipulation member 2 passes through the connecting frame 11 and is connected to the sliding member 81, preferably selectively, the traction body 201 may be a traction rope structure, the clamping seat 4 corresponding to the side of the movable lock 8 is formed with a guide edge 403 to guide the position pin 501 to be mobilized between the first position and the second position.

[0044] When the support mechanism 1 is tilted to the folded state, the movable lock 8 and the first locker engage and cooperate with each other, and the switching structure 7 rotates and moves to the first position, so that the pin of position 501 of the first assembly 5 is in the second rail groove 702, and that the first assembly 5 is in the unlocked state;

[0045] When the support mechanism 1 is tilted to the unfolded state, the movable lock 8 and the second locker engage and cooperate with each other, and the switching structure 7 rotates and switches to the second position state, so that the position pin 501 of the first fixture 5 is transferred from the second rail groove 702 to the first rail groove 701, and the first fixture 5 is in the locked state; the first fixture 5 and the second fixture 6 strongly clamp the ball of the rear hitch of the car tailgate, so as to fix the clamping seat 4 to the ball of the rear hitch of the car tailgate.

[0046] The first locker and the second locker exist in yet another embodiment, the first locker is a drive component 703 of the switching structure 7 extending out of the guide edge 403, a drive component 703 has a groove which cooperates with the latching pin 82, and the second locker is a latching groove 401 which opens onto the clamping seat 4.

[0047] A third elastic element 15 is arranged between the switching structure 7 and the clamping seat 4, and the third elastic element 15 is a tension spring, and the switching structure 7 tends to restore to the second position under the action of the third elastic element 15, and the hand-held movable manipulation element 2 is held by hand so that the sliding element 81 of the seat moves away from the clamping seat 4 under the action of the pulling body 201, the end of the latching pin 82 is detached from the latching groove 401 of the clamping seat 4, the connecting frame 11 can be tilted upward to be folded relative to the clamping seat 4, and then it can be released the movable manipulation element 2 to be held by hand, under the action of the first elastic element 801, the end of the latching pin 82 hooks onto the guide edge 403,the end of the latching pin 82 is abutted against the drive component 703 and mobilizes along the guide edge 403, the latching pin 82 fits into a slot of the drive component 703, by continuing to tilt the connecting frame 11 upwards, the movable lock 8 is actuated from the switching structure 7 in order to overcome the third elastic element 15 to tilt into the first position, at this time, the support mechanism 1 is tilted into the folded state, the position pin 501 of the first mounting 5 hooks onto the inner wall of the second rail groove 702, the first mounting 5 s] spreads outward along the second rail groove 702, the second mounting 6 hooks onto the movable edge 301 of the drive element 3 and allows to be movably rotated for the in place, and a crossing space for the rear tow ball is formed between, the first mounting 5 and the second mounting 6, so that the clamping seat 4 can be disassembled and mounted on the rear tow ball; in the process of holding the movable manipulation member 2, the manipulation member 2 can also connect the limiting structure 93 to unlock the connecting frame 11 and the support frame 12, so that the support frame 12 can be folded by tilting downwards relative to the connecting frame 11, the bicycle on the tailgate bicycle rack can be adjusted in an inclined manner, and the opening of a car trunk lid can avoid being blocked.

[0048] When it is necessary to fix the clamping seat 4 and the rear hitch ball, the connecting frame 11 can be subjected to a downward unfolding activity relative to the clamping seat 4, so that the latching pin 82 moves along the guide edge 403 to the position corresponding to the latching groove 401, and the first elastic member 801 resumes its deformation to drive the sliding member 81 to be restored, the end of the latching pin 82 is engaged in the corresponding latching groove 401 to lock the clamping seat 4 and the driving member 3, at the same time, the third elastic member 15 resumes its deformation to drive the switching structure 7 to be restored to the second position state;the position pin 501 hooks onto the inner wall of the first rail groove 701, preferably selectively, the position pin 501 has a limiting plane, and the limiting plane resists and cooperates with the inner wall of the first rail groove 701 to prevent the first mounting 5 from separating outwardly, the second mounting 6 hooks onto the positioning edge 302 of the drive member 3 and is positioned, so that the first mounting 5 and the second mounting 6 maintain in the folded state and form a clamping cavity for clamping the rear hitch ball. ;

[0049] When using tailgate bicycle racks, the user can realize the locking or unlocking of the clamping seat 4 on the rear tow ball by holding the movable manipulation member 2 by means of the pivoting activity of the driving member 3 and the clamping seat 4, so as to quickly realize the disassembly and assembly of the rear bicycle rack and the car tailgate, which is convenient and easy to use and implement. The user can also operate the pedal to unlock the lock between the pillar member 14 and the support frame 12, and the lock between the connecting frame 11 and the support frame 12, which provides flexibility of operation and improves the user experience.

[0050] Preferably selectively, the connecting frame 11 is equipped with a locking device 10 for locking the sliding member 81, and the locking device 10 is a mechanical lock, and the mechanical seat comprises a lock core, a lock body, and a lock tongue, which is of the art prior and will not be discussed in detail herein. The position of the sliding element 81 can be fixed by the lock tongue of the locking device 10, thus avoiding the user from unlocking the clamping seat 4 and the driving element 3 by detaching the engagement pin 82 at the engagement groove 401 by improper handling.

Claims

1.

2. Claims Tailgate bicycle rack with ball joint for cars, characterized by the fact that it includes: a support mechanism (1), said support mechanism (1) being intended for supporting and placing bicycles, said support mechanism (1) being provided with a drive element (3); a clamping assembly, the clamping assembly comprising a clamping seat (4), a first locker, a second locker, and a first mounting (5) and a second mounting (6) opposite each other, said clamping seat (4) being pivotally connected to said drive member (3), said first mounting (5) and said second mounting (6) being pivotally connected to the clamping seat (4), the second locker being arranged on said clamping seat (4), said first mounting (5) and said second mounting (6) being configured to clamp a tow ball of a car tailgate to secure said clamping seat (4) to the tow ball of the car tailgate; a movable lock (8), said movable lock (8) being arranged between said clamping seat (4) and said driving element (3) of said support mechanism (1); when said support mechanism (1) is tilted to the folded state, said movable lock (8) and the first locker fit into each other; when said support mechanism (1) is tilted to the unfolded state, said movable lock (8) and the second locker fit into each other. A ball-joint tailgate bicycle rack for a car according to claim 1, characterized in that the clamping assembly also comprises a switching structure (7) pivotally connected to said clamping seat (4), said switching structure (7) being provided with a first rail groove (701) and a second rail groove (702) intersecting and interconnected, said first locker being arranged in said switching structure (7); when said switching structure (7) rotates and enters a first position state, a position pin (501) of said first mounting (5) is located in said second rail groove (702), so that said first mounting (5) is in an unlocked state; when said switching structure (7) rotates and enters a second position state, the position pin (501) of said first fixture (5) is moved from said second rail groove (702) to said first rail groove (701), so that said first fixture (5) is in a locked state.

3. A ball-joint tailgate bicycle rack for a car according to claim 2, characterized in that said support mechanism (1) comprises a connecting frame (11) and a supporting frame (12), as well as two supporting arms (13) respectively pivotally connected to both sides of said supporting frame (12), said connecting frame (11) and said supporting frame (12) being pivotally connected to each other, said drive member (3) being fixedly arranged on said connecting frame (11), said drive member (3) and said second mounting (6) pivoting respectively about the same axis and being arranged in said clamping seat (4), a handling member (2) being movably arranged on said supporting frame (12),said support frame (12) being equipped with a self-locking mechanism (9) so that said connecting frame (11) and said support frame (12) lock each other when said support frame (12) is in the unfolded state, said self-locking mechanism (9) being connected to the handling element (2).,

4. A ball-joint tailgate bicycle rack for a car according to claim 3, characterized in that said movable lock (8) comprises a sliding element (81) and a latch pin (82) which is arranged on said sliding element (81), the first locker and the second locker all being grooves for coupling with said latch pin (82), said sliding element (81) being arranged in a movable and retractable manner on said drive element (3), a first elastic element (801) being arranged between said sliding element (81) and said connecting frame (11) for automatically restoring said sliding element (81).

5. A ball-joint tailgate bicycle rack for a car according to claim 4, characterized in that the traction body (201) of said handling element (2) is connected to said sliding element (81), or in that the traction body (201) of said handling element (2) passes through said connecting frame (11) to be connected to said sliding element (81), said connecting frame (11) being provided with a locking device (10) for locking said sliding element (81).

6. A ball-joint tailgate bicycle rack for a car according to claim 3, characterized in that said self-locking mechanism (9) comprises a first hooking component (91) pivotally connected to said support frame (12), one end of a third torsion spring (901) on said support frame (12) abutting against a side opposite a carabiner portion on said first hooking component (91), and when said support frame (12) is in an unfolded state, the carabiner portion of said first hooking component (91) hooks onto a first connecting pin (1101) on said connecting frame (11).

7. A ball-joint tailgate bicycle rack for a car according to claim 6, characterized in that said self-locking mechanism (9) also comprises a second hooking component (92) pivotally connected to said support frame (12), a post member (14) being pivotally connected to the portion of said self-locking mechanism (9) on the support frame (12), the other end of the third torsion spring (901) on said support frame (12) abutting against a side opposite the carabiner portion on said second hooking component (92), the carabiner portion on the second hooking component (92) hooking onto a second connecting pin (1401) pivotally connected to the post member (14).

8. A ball-joint tailgate bicycle rack for a car according to claim 7, characterized in that said self-locking mechanism (9) also comprises a limiting structure (93), said limiting structure (93) being movably arranged on said support frame (12), a second elastic element (903) being arranged between a first end of said limiting structure (93) and a fixing component (902) of said support frame (12), a second end of said limiting structure (93) being connected to the end of said support frame (12) through which the manipulation element (2) passes; said first hooking component (91) and said second hooking component (92) all rotate in a limited manner and are arranged within the movable space of said limiting structure (93), and said limiting structure (93) is provided with a first contact element (904) abutting against said first hooking component (91), and a second contact element (905) abutting against said second hooking component (92), respectively; said self-locking mechanism (9) is provided on both sides of said support frame (12).

9. A ball-joint tailgate bicycle rack for a car according to claim 1, characterized in that in said clamping seat (4), the bicycle rack has a first rotating shaft (502) and a second rotating shaft (601); said first mounting (5) rotates around said first rotating shaft (502) and is arranged in said clamping seat (4), said first rotating shaft (502) is engaged with a first torsion spring (503), the ends of said first torsion spring (503) are respectively abutted against said clamping seat (4) and said first mounting (5); said second mounting (6) rotates around the second rotating shaft (601) and is arranged in said clamping seat (4), said second rotating shaft (601) is engaged with a second torsion spring (602), the ends of said second torsion spring (602) are respectively abutted against said drive member (3) and said second mounting (6);an arcuate support (402) is nested between said first rotating shaft (502) and said second rotating shaft (601).;

10. A ball-joint tailgate bicycle rack for a car according to claim 2, characterized in that a third elastic element (15) is arranged between said switching structure (7) and said clamping seat (4), so that said switching structure (7) tends to return to the second position state.

Images