Vehicle-mounted bicycle frame on rear portion of automobile

Abstract

The invention discloses an automobile rear vehicle-mounted bicycle frame which comprises a supporting plate and at least one bicycle fixing module transversely installed on the upper side of the supporting plate, an overturning assembly is arranged at the lower end of the supporting plate, an insertion fixing assembly is connected to the lower side of the overturning assembly, and the bicycle fixing module comprises a supporting plate. A pair of wheel fixing assemblies are symmetrically arranged on the upper side of the supporting plate, each wheel fixing assembly comprises a wheel locking rod and a wheel bracket installed on the inner side of the wheel locking rod, one end of each wheel locking rod is rotationally connected with the end of the supporting plate through a rotating shaft, and side seats are arranged on the two sides of the supporting plate; one side of the wheel locking rod is rotationally connected with the first end of the supporting rocker arm, a rack and a sliding block locking assembly are arranged in the side base on the side corresponding to the supporting rocker arm, and a pushing force air spring is transversely installed in the middle of the side base. The problems that in the prior art, a hydraulic push rod is prone to being collided and damaged, the stroke is small, and a locking structure is complex and inconvenient to install can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile bicycle frames, in particular to a bicycle frame mounted on the rear of an automobile. Background Art

[0002] With the increasing number of outdoor cycling enthusiasts, people need to install bicycle racks on various vehicles. Current bicycle racks generally include a roof bracket and a rear bracket. Both the roof bracket and the rear bracket need to clamp the two wheels of the bicycle. The bicycle fixing module on the current frame generally includes a support plate and a wheel locking rod that can be rotated at both ends of the support plate. The rotation and locking of the wheel locking rod need to be adjusted according to different bicycle wheel sizes. The current wheel locking rod is directly pushed by a hydraulic rod to rotate, such as the technical solution in Chinese patent CN111038398A. The hydraulic push rod needs to be installed on the outside of the bracket, which is not only large in size, but also easily damaged by collision, and the stroke of the hydraulic rod is also relatively short. In addition, the locking structure for the movement of the hydraulic rod also needs to be set on the hydraulic push rod, which makes the structure of the hydraulic push rod very complicated. Once damaged, the replacement cost is very high, which is not conducive to outdoor use.

[0003] In addition, for the bracket installed at the rear of the car, a plug-in tube is generally inserted into the mounting tube at the rear of the car and then the plug-in tube and the mounting tube are fixed by a latch. In actual application, the reliability of a single latch fixation is limited. Once the latch breaks, the entire bicycle rack will be separated from the car, causing a safety accident. Summary of the invention

[0004] The invention provides a bicycle rack mounted on the rear of a vehicle, wherein a bicycle fixing module adopts a hidden locking structure and a power structure, which can solve the problem of using a hydraulic push rod in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bicycle rack mounted on the rear of a car, comprising a support plate and at least one bicycle fixing module transversely installed on the upper side of the support plate, a flip assembly is arranged at the lower end of the support plate, a plug-in fixing assembly is connected to the lower side of the flip assembly, the bicycle fixing module comprises a support plate, a pair of wheel fixing assemblies are symmetrically arranged on the upper side of the support plate, the wheel fixing assembly comprises a wheel locking rod and a wheel bracket installed on the inner side of the wheel locking rod and can slide along the length direction of the wheel locking rod, one end of the wheel locking rod is rotatably connected to the end of the support plate through a rotating shaft, and the support plate Side seats are arranged on both sides, one side of the wheel locking rod is rotatably connected to the first end of the supporting rocker arm, a rack and a slider locking assembly are arranged inside the side seat corresponding to the supporting rocker arm, a thrust gas spring is transversely installed in the middle part of the side seat, and the extended end of the thrust gas spring is connected to the slider locking assembly to push the slider locking assembly to slide along the length direction of the rack. By arranging the slider locking assembly and the thrust gas spring on the side seat, the structure of the thrust gas spring is simplified, the structure is more reasonable, the slider locking assembly and the thrust gas spring are not easily damaged by collision, the operation is simple, the slider locking assembly has a relatively long stroke, and the rotation angle of the wheel locking rod is larger;

[0006] The slider locking assembly includes a slider body and an operating wrench, the slider body is rotatably connected to the second end of the supporting rocker arm, one end of the operating wrench is connected to an unlocking rod, one end of the unlocking rod is connected to the slider body through a first rotating pin, a locking movable rod is installed on the side of the slider body close to the rack, the middle part of the locking movable rod is connected to the slider body through a second rotating shaft pin, and a first coil spring is installed on the outer side of the second rotating shaft pin, the first end of the locking movable rod is a downward pressing unlocking end extending to the side of the unlocking rod, and the second end of the locking movable rod is a locking tooth part extending to match the rack, and when the unlocking rod is rotated toward the locking movable rod direction, the downward pressing unlocking end is pressed downward, so that the locking tooth part is disengaged from the rack, the operation is simple, the structure is reliable, it is not easy to get stuck, and locking can be achieved at any position.

[0007] Preferably, a limit buckle plate is provided on one side of the unlocking rod, and the first end of the limit buckle plate is rotatably connected to the operating wrench through a third rotating pin, and the second end of the limit buckle plate is provided with a bent end that extends into the slider body and is buckled with the slider body. By setting the limit buckle plate, the rotation angle of the operating wrench can be limited, and the operating wrench will not swing on its own when the slider locking assembly is in the locked state.

[0008] Preferably, a positioning protrusion is provided on the side of the limit buckle plate above the bent end, and a second coil spring is sleeved on the third rotating pin. When the operating wrench is pressed to rotate the unlocking rod toward the locking movable rod, the positioning protrusion and the slider body are engaged and limited, so that the locking tooth portion remains disengaged from the rack, and the operating wrench can be kept in a pressed down state. In this way, the operator can directly hold the wheel locking rod with one hand and rotate it to adjust it. After adjusting to the required angle, the operating wrench is bent outward to disengage the positioning protrusion from the slider body, thereby achieving the locking of the slider locking assembly.

[0009] Preferably, a buffer seat is installed at one end of the side seat away from the thrust gas spring, a buffer spring is installed on the inner side of the buffer seat, and a buffer block is connected to one end of the buffer spring facing the slider locking assembly. The thrust gas spring pushes the slider locking assembly to resist the buffer block, thereby compressing the buffer spring, thereby playing a buffering role and preventing abnormal noise. At the same time, if the wheel size is too large and exceeds the stroke of the thrust gas spring, the wheel locking rod can continue to rotate outward to compress the buffer spring and provide the wheel locking rod with force to clamp the wheel.

[0010] Preferably, the support rocker arms of the two wheel fixing assemblies are installed on the same side, and the thrust gas springs are installed side by side up and down inside the side seat on the same side, with a compact structure, so that the slider locking assembly can be operated on the same side.

[0011] Preferably, a pair of unlocking slide buttons are arranged opposite to each other on the upper sides of the wheel support, a positioning pin is arranged on the outward end of the unlocking slide button, and a plug-in hole matching the positioning pin is arranged on the inner side wall of the wheel locking rod along the length direction. The position of the wheel support can be adjusted by plugging the positioning pin into different plug-in holes, so as to adapt to the clamping of wheels of different diameters.

[0012] Preferably, the plug-in fixing assembly comprises an installation plug tube and a positioning top block, the first end of the installation plug tube is connected to the flip assembly, the positioning top block is arranged on the installation plug tube at a position close to the second end and passes through the side wall of the installation plug tube; a movable block is arranged inside the installation plug tube, the movable block and the installation plug tube are anti-rotation matched, a sloped portion is arranged on the side of the movable block facing the positioning top block, and a steel ball is arranged between the sloped portion and the positioning top block; a screw is transversely installed inside the installation plug tube, the first end of which is threadedly connected to the movable block, and the second end extends to the first end of the installation plug tube and is connected to the knob, and the positioning top block can be positioned with the mounting tube at the rear of the vehicle by telescoping the positioning top block relative to the side wall of the installation plug tube, and the telescoping of the positioning top block is controlled by the rotation of the screw and the knob. The combination of the sloped portion and the steel ball can realize that the positioning top block can be telescoping and kept in a locked state, which is simple to operate and firmly installed.

[0013] Furthermore, the installation plug-in tube is a square tube, and the movable block is flat and is arranged along the diagonal direction of the cross-section of the installation plug-in tube. The square tube is conducive to inserting the installation plug-in tube into the installation tube at the correct angle, and has an anti-rotation effect. The movable block is arranged along the diagonal direction to form an anti-rotation fit with the top corner of the side of the installation plug-in tube.

[0014] Furthermore, a guide strip hole is opened on the movable block along its length direction, and an insertion shaft passing through the guide strip hole is horizontally inserted on the side wall of the installation plug tube, which can guide and limit the moving stroke of the movable block.

[0015] Furthermore, a through groove is provided in the middle of the movable block, and opening portions corresponding to the through groove are provided on the side walls on both sides of the installation plug tube. Traditional fixing pins can pass through the through groove and the opening portions. Since the positioning top block has played a limiting locking role, the through groove and the opening portions can adopt waist-shaped holes, so that the fixing pins can be easily inserted.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The bicycle fixing module adopts a new drive locking structure. By arranging the slider locking assembly and the thrust gas spring on the side seat, the structure of the thrust gas spring is simplified and the structure is more reasonable. The slider locking assembly and the thrust gas spring are not easily damaged by collision. The slider locking assembly has a relatively long stroke and the rotation angle of the wheel locking rod is larger. The slider locking assembly is easy to operate and has a reliable structure. It is not easy to get stuck and can achieve stable locking at any position.

[0018] A new plug-in fixing component is adopted, which can be positioned with the mounting tube at the rear of the vehicle by the extension and retraction of the positioning top block relative to the side wall of the mounting plug tube. The extension and retraction of the positioning top block is controlled by the rotation of the screw and the knob. The movable block can be moved by the rotation of the screw, so that the combination of the inclined portion and the steel ball can realize the extension and retraction of the positioning top block and maintain a locked state. The operation is simple and the installation is firm, which can improve the disassembly and assembly efficiency of the vehicle-mounted bicycle rack; the positioning top block cooperates with the traditional latch to achieve double safety protection between the mounting plug tube and the mounting tube, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 It is a side structural diagram of the present invention;

[0021] Figure 3 A top view of the bicycle fixing module of the present invention

[0022] Figure 4This is a three-dimensional structural diagram of the bicycle fixing module of the present invention after removing one side seat;

[0023] Figure 5 for Figure 4 A magnified structural diagram;

[0024] Figure 6 for Figure 4 The enlarged structure diagram at B;

[0025] Figure 7 for Figure 4 The enlarged structure diagram at C;

[0026] Figure 8 It is a cross-sectional structural diagram of the slider locking assembly of the present invention;

[0027] Fig. 9 It is a three-dimensional structural diagram of the plug-in fixing assembly of the present invention;

[0028] Fig.10 It is a front cross-sectional structural diagram of the plug-in fixing assembly of the present invention;

[0029] Fig.11 for Fig.10 AA section structure diagram;

[0030] Fig.12 The figure is a three-dimensional diagram of the internal structure of the plug-in fixing assembly of the invention.

[0031] Reference numerals:

[0032] 1. Bicycle fixing module, 11. Wheel fixing assembly, 14. Side seat, 111. Wheel locking rod, 112. Support rocker arm, 113. Wheel bracket, 1131. Plug hole, 1132. Unlocking slide button, 1134. Positioning latch, 114. Buffer stopper, 115. Thrust gas spring, 116. Rotating shaft, 117. Slider locking assembly, 1171. Operating wrench, 1172. Limiting buckle plate, 1721. Positioning protrusion, 1722. Bending end, 1173. Unlocking rod, 1731. Step portion, 1174. First rotating pin, 1175. Locking movable rod, 1751. Press down to unlock end, 1752, toothed portion, 1176, slider body, 1177, second coil spring, 1178, second rotating shaft pin, 1179, third rotating pin, 118, rack, 119, buffer seat, 120, buffer spring, 141, guide groove, 2, support plate, 3, plug-in fixing component, 31, installation plug-in tube, 311, inclined portion, 312, steel ball, 313, opening portion, 314, reinforcement groove, 32, screw, 33, end cover, 34, knob, 35, movable block, 36, positioning top block, 37, guide sleeve, 38, guide long strip hole, 39, plug-in shaft, 310, through groove; 4, flip assembly. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] like Figure 1-12 As shown, the present invention solves the problems in the prior art that the hydraulic push rod is easily damaged by collision, has a relatively small stroke, and has a complex locking structure and is inconvenient to install. The present invention provides the following technical solutions: a bicycle rack mounted on the rear of a car, comprising a support plate 2 and at least one bicycle fixing module 1 installed laterally on the upper side of the support plate 2, wherein the lower end of the support plate 2 is provided with a flip assembly 4, and the lower side of the flip assembly 4 is connected with a plug-in fixing assembly 3, the bicycle fixing module 1 comprises a support plate 12, and a pair of wheel fixing assemblies 11 are symmetrically arranged on the upper side of the support plate 12, the wheel fixing assembly 11 comprises a wheel locking rod 111 and a wheel bracket 113 installed on the inner side of the wheel locking rod 111 and can slide along the length direction of the wheel locking rod 111, and one end of the wheel locking rod 111 is rotationally coupled to the end of the support plate 12 through a rotating shaft 116. Side seats 14 are provided on both sides of the support plate 12, one side of the wheel locking rod 111 is rotatably connected to the first end of the support rocker arm 112, a rack 118 and a slider locking assembly 117 are provided inside the side seat 14 on the side corresponding to the support rocker arm 112, a thrust gas spring 115 is transversely installed in the middle part of the side seat 14, the protruding end of the thrust gas spring 115 is connected to the slider locking assembly 117 to push the slider locking assembly 117 to slide along the length direction of the rack 118, and by arranging the slider locking assembly 117 and the thrust gas spring 115 on the side seat 114, the structure of the thrust gas spring 115 is simplified, the structure is more reasonable, the slider locking assembly 117 and the thrust gas spring 115 are not easily damaged by collision, the operation is simple, the slider locking assembly 117 has a relatively long stroke, and the rotation angle of the wheel locking rod 111 is larger.

[0035] Specifically, when in use, the slider locking assembly 117 needs to be unlocked, and then the thrust gas spring 115 will push the slider locking assembly 117 to move along the rack 118, so that the wheel locking rod 111 can be rotated around the rotating shaft 116 by moving the second end of the supporting rocker arm 112. After the wheel locking rod 111 is rotated to a suitable angle, the slider locking assembly 117 cooperates with the rack 118 to lock, and then the bicycle is placed on the support plate 2, and then the position of the wheel bracket 113 is adjusted to tighten the wheel of the bicycle.

[0036] like Figure 3-4As shown, the support rocker arms 112 of the two wheel fixing assemblies 11 are installed on the same side, and the thrust gas springs 115 are installed side by side up and down inside the side seat 14 on the same side. The structure is compact, so that the slider locking assembly 117 can be operated on the same side.

[0037] In this embodiment, as a specific structure of the slider locking assembly 117, as shown in FIG. Figure 5-8 As shown, the slider locking assembly 117 includes a slider body 1176 and an operating wrench 1171, the slider body 1176 is rotatably connected to the second end of the support rocker arm 112, one end of the operating wrench 1171 is connected to an unlocking rod 1173, one end of the unlocking rod 1173 is connected to the slider body 1176 through a first rotating pin 1174, a locking movable rod 1175 is installed on the side of the slider body 1176 close to the rack 118, and the middle part of the locking movable rod 1175 is connected to the slider body 117 through a second rotating shaft pin 1178. 6 is connected, a first coil spring is installed on the outer side of the second rotating shaft pin 1178, the first end of the locking movable rod 1175 is a downward pressing unlocking end 1751 extending to the side of the unlocking rod 1173, and the second end of the locking movable rod 1175 is extended to the locking tooth part 1752 matching the rack 118, when the unlocking rod 1173 rotates toward the locking movable rod 1175, the downward pressing unlocking end 1751 is pressed down, so that the locking tooth part 1752 is disengaged from the rack 118, the operation is simple, the structure is reliable, it is not easy to get stuck, and locking can be achieved at any position.

[0038] Among them, the flip assembly 4 can adopt the same structure as that in the Chinese patent CN206067651U of the same applicant as the present invention, and its structure will not be repeated here.

[0039] At the same time, if Figure 8 As shown, a limiting buckle plate 1172 is provided on one side of the unlocking rod 1173, and the first end of the limiting buckle plate 1172 is rotatably connected to the operating wrench 1171 through a third rotating pin 1179, and the second end of the limiting buckle plate 1172 is provided with a bent end 1722 that extends into the slider body 1176 and is buckled with the slider body 1176. By setting the limiting buckle plate 1172, the rotation angle of the operating wrench 1171 can be limited, and the operating wrench 1171 will not swing by itself when the slider locking assembly 117 is in the locked state.

[0040] In order to more conveniently adjust the rotation angle of the wheel locking rod 111, Figure 8As shown, a positioning protrusion 1721 is provided on the side of the limit buckle plate 1172 above the bent end 1722, and a second coil spring 1177 is sleeved on the third rotating pin 1179. When the operating wrench 1171 is pressed to rotate the unlocking rod 1173 toward the locking movable rod 1175, the positioning protrusion 1721 and the slider body 1176 are engaged and limited, so that the locking tooth portion 1752 remains disengaged from the rack 118, and the operating wrench 1171 can be kept in a pressed state, so that the operator can directly hold the wheel locking rod 111 with one hand and rotate it to adjust it. After adjusting to the required angle, the operating wrench 1171 is bent outward to disengage the positioning protrusion 1721 from the slider body 1176, thereby realizing the locking of the slider locking assembly 117.

[0041] In this embodiment, if Figure 4 As shown, a guide groove 141 is opened on the side wall of the side seat 14 along the length direction, and the operating wrench 1171 is located on the outside of the side seat 14. The unlocking rod 1173, the limiting buckle plate 1172 and the second end of the supporting rocker arm 112 are all connected to the slider body 1176 through the guide groove 141. The guide groove 141 can guide the sliding of the slider locking assembly 117, and it is not easy to get stuck.

[0042] like Figure 6 As shown, the downward-pushing unlocking end 1751 is an upward arc-shaped protrusion, and the corresponding side of the unlocking rod 173 is provided with a step portion 1731. The lower end plane of the step portion 1731 is in contact with the arc-shaped protrusion, so that the unlocking rod 173 can always maintain linear contact with the downward-pushing unlocking end 1751 when rotating.

[0043] In this embodiment, if Figure 4 and 7 As shown, a buffer seat 119 is installed at one end of the side seat 14 away from the thrust gas spring 115, and a buffer spring 120 is installed on the inner side of the buffer seat 119. The buffer spring 120 is connected to a buffer block 114 at one end facing the slider locking assembly 117. The thrust gas spring 115 pushes the slider locking assembly 117 to resist the buffer block 114, compressing the buffer spring 120, thereby playing a buffering role to prevent abnormal noise. At the same time, if the wheel size is too large and exceeds the stroke of the thrust gas spring 115, the wheel locking rod 111 can be further rotated outward to compress the buffer spring 120 and provide the wheel locking rod 111 with force to clamp the wheel.

[0044] In order to facilitate the adjustment of the position of the wheel bracket 113, as shown in FIG. Figure 4 and 8As shown, a pair of unlocking slide buttons 1132 are arranged opposite to each other on the upper side of the wheel support 113, and a positioning pin 1134 is arranged at the outward end of the unlocking slide button 1132. A plug-in hole 1131 matching the positioning pin 1134 is arranged on the inner side wall of the wheel locking rod 111 along the length direction. The position of the wheel support 113 can be adjusted by plugging the positioning pin 1134 into different plug-in holes 1131, so as to adapt to the clamping of wheels with different diameters.

[0045] In this embodiment, if Figure 9-12 As shown, the plug-in fixing assembly 3 includes an installation plug-in tube 31 and a positioning top block 36. The first end of the installation plug-in tube 31 is connected to the flip assembly 4. The positioning top block 36 is arranged on the installation plug-in tube 31 near the second end and passes through the side wall of the installation plug-in tube 31. A movable block 35 is arranged inside the installation plug-in tube 31. The movable block 35 and the installation plug-in tube 31 are anti-rotationally matched. The movable block 35 is provided with an inclined portion 311 on the side facing the positioning top block 36. The inclined portion 311 and the positioning top block 36 A steel ball 312 is arranged between them; a screw rod 32 is transversely installed inside the mounting plug tube 31, a first end of which is threadedly connected to the movable block 35, and a second end of which extends to the first end of the mounting plug tube 31 and is connected to the knob 34. The positioning top block 36 can be positioned with the mounting tube at the rear of the vehicle by telescoping the positioning top block 36 relative to the side wall of the mounting plug tube 31. The telescoping of the positioning top block 36 is controlled by the rotation of the screw rod 32 and the knob 34. The combination of the inclined portion 311 and the steel ball 312 can realize that the positioning top block 36 can be telescoping and maintained in a locked state, which is simple to operate and firmly installed.

[0046] Specifically, during installation, the positioning top block 36 is first retracted into the side wall of the installation plug tube 31, and then the installation plug tube 31 is inserted into the installation tube at the rear of the car. The inner side wall of the installation tube is also provided with a positioning groove matching the positioning top block 36. After the installation plug tube 1 is inserted into place, the knob 34 is turned. Since the screw rod 32 and the movable block 35 are threadedly connected, the rotation of the screw rod 32 will be converted into a lateral movement of the movable block 35. When the movable block 35 moves, the inclined portion 311 and the steel ball 312 move relative to each other, such as Figure 9-12 As shown, the steel ball 312 and the positioning top block 36 are pushed up together, and the positioning top block 36 extends to the outside of the side wall of the installation plug tube 31 and is embedded in the positioning groove on the installation tube, so that the vehicle-mounted bicycle rack can be installed. Fig.10 As shown, the cross section of the inclined portion 311 is in the shape of an inwardly concave arc, which can prevent the steel ball 312 from deviating when rolling along the inclined portion 311 .

[0047] In this embodiment, if Fig.11As shown, the installation plug-in tube 31 is a square tube, and the movable block 35 is flat and arranged along the diagonal direction of the cross section of the installation plug-in tube 31. The square tube is conducive to inserting the installation plug-in tube into the installation tube at a correct angle and has an anti-rotation effect. The movable block 35 is arranged along the diagonal direction to form an anti-rotation fit with the side top corner of the installation plug-in tube 31.

[0048] In this embodiment, if Fig.12 As shown, the movable block 35 is provided with a guide strip hole 38 along its length direction, and an insertion shaft 39 is horizontally inserted on the side wall of the mounting plug tube 31 and passes through the guide strip hole 38, so as to guide and limit the moving stroke of the movable block.

[0049] In this embodiment, if Fig.12 As shown, a through slot 310 is provided in the middle of the movable block 35, and opening portions 313 corresponding to the through slot 310 are provided on the side walls of the mounting plug tube 31. A traditional fixing pin can pass through the through slot 310 and the opening portion 313. Since the positioning top block 36 has played a limiting locking role, the through slot and the opening portion can adopt waist-shaped holes so that the fixing pin can be easily inserted.

[0050] In order to improve the strength of the movable block 35, as Fig.12 As shown, a plurality of reinforcing grooves 314 are provided on the side walls of the movable block 35 at positions corresponding to the inclined surface 311 , so as to improve the strength of the movable block 35 , especially the strength of the position matching with the positioning top block 36 .

[0051] like Fig. 9 As shown, the first end portion of the mounting plug tube 31 is provided with an end cover 33, and the screw rod 32 passes through the end cover 33, which can support the rotation of the screw rod 32 and limit the axial position. The end cover 33 and the mounting plug tube 31 are detachable structures, and threads are only provided at the connection position between the screw rod 32 and the movable block 35, and the other positions are all bare rods. A limiting step can be provided at an appropriate position, and the limiting step cooperates with the end cover 33 to prevent the screw rod 32 from axial movement.

[0052] At the same time, the inner end of the end cover 33 is provided with a guide sleeve 37 sleeved on the outer side of the screw rod 32, so that the screw rod 32 can rotate stably.

[0053] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A bicycle rack mounted on the rear of a vehicle, comprising a support plate (2) and at least one bicycle fixing module (1) transversely mounted on the upper side of the support plate (2), a flip assembly (4) being arranged at the lower end of the support plate (2), a plug-in fixing assembly (3) being connected to the lower side of the flip assembly (4), characterized in that: The bicycle fixing module (1) comprises a support plate (12), a pair of wheel fixing assemblies (11) are symmetrically arranged on the upper side of the support plate (12), the wheel fixing assembly (11) comprises a wheel locking rod (111) and a wheel bracket (113) mounted on the inner side of the wheel locking rod (111) and capable of sliding along the length direction of the wheel locking rod (111), one end of the wheel locking rod (111) is rotatably connected to the end of the support plate (12) via a rotating shaft (116), and both sides of the support plate (12) are A side seat (14) is provided, one side of the wheel locking rod (111) is rotatably connected to the first end of the supporting rocker arm (112), a rack (118) and a slider locking assembly (117) are provided inside the side seat (14) on the side corresponding to the supporting rocker arm (112), a thrust gas spring (115) is transversely installed in the middle of the side seat (14), and the protruding end of the thrust gas spring (115) is connected to the slider locking assembly (117) to push the slider locking assembly (117) to slide along the length direction of the rack (118); The slider locking assembly (117) includes a slider body (1176) and an operating wrench (1171), wherein the slider body (1176) is rotatably connected to the second end of the support rocker arm (112), one end of the operating wrench (1171) is connected to an unlocking rod (1173), one end of the unlocking rod (1173) is connected to the slider body (1176) through a first rotating pin (1174), and a locking movable rod (1175) is installed on the side of the slider body (1176) close to the rack (118), and the middle part of the locking movable rod (1175) is connected to the first rotating pin (1174). The second rotating shaft pin (1178) is connected to the slider body (1176), and a first coil spring is installed on the outer side of the second rotating shaft pin (1178). The first end of the locking movable rod (1175) is a downward-pressing unlocking end (1751) extending to the side of the unlocking rod (1173), and the second end of the locking movable rod (1175) is a locking tooth portion (1752) extending to match the rack (118). When the unlocking rod (1173) rotates toward the locking movable rod (1175), the downward-pressing unlocking end (1751) is pressed downward, so that the locking tooth portion (1752) is disengaged from the rack (118).

2. The bicycle rack mounted on the rear of a vehicle according to claim 1, characterized in that: A limit buckle plate (1172) is provided on one side of the unlocking rod (1173), and the first end of the limit buckle plate (1172) is rotatably connected to the operating wrench (1171) through a third rotating pin (1179), and the second end of the limit buckle plate (1172) is provided with a bent end (1722) that extends into the slider body (1176) and is buckled with the slider body (1176).

3. The bicycle rack mounted on the rear of a vehicle according to claim 2, characterized in that: A positioning protrusion (1721) is provided on the side of the limiting buckle plate (1172) above the bending end (1722), and a second coil spring (1177) is sleeved on the third rotating pin (1179). When the operating wrench (1171) is pressed to rotate the unlocking rod (1173) toward the locking movable rod (1175), the positioning protrusion (1721) and the slider body (1176) are engaged and limited, so that the locking tooth portion (1752) remains disengaged from the rack (118).

4. The vehicle-mounted bicycle rack according to claim 1, characterized in that: A buffer seat (119) is installed at one end of the side seat (14) away from the thrust gas spring (115), a buffer spring (120) is installed inside the buffer seat (119), and a buffer stopper (114) is connected to one end of the buffer spring (120) facing the slider locking assembly (117).

5. The bicycle rack mounted on the rear of a vehicle according to claim 1, characterized in that: The support rocker arms (12) of the two wheel fixing assemblies (1) are installed on the same side, and the thrust gas springs (15) are installed side by side up and down inside the side seat (4) on the same side.

6. The bicycle rack mounted on the rear of a vehicle according to claim 1, characterized in that: A pair of unlocking slide buttons (1132) are arranged opposite to each other on the upper side of the wheel support (113), a positioning pin (1134) is arranged at one end of the unlocking slide button (1132) facing outward, and a plug hole (1131) matching the positioning pin (1134) is arranged on the inner side wall of the wheel locking rod (111) along the length direction.

7. The bicycle rack mounted on the rear of a vehicle according to claim 1, characterized in that: The plug-in fixing assembly (3) comprises an installation plug-in tube (31) and a positioning top block (36), wherein the first end of the installation plug-in tube (31) is connected to the flip assembly (4), and the positioning top block (36) is arranged on the installation plug-in tube (31) at a position close to the second end and passes through the side wall of the installation plug-in tube (31); a movable block (35) is arranged inside the installation plug-in tube (31), and the movable block (35) and the installation plug-in tube (31) are anti-rotationally matched, and a sloped portion (311) is arranged on the side of the movable block (35) facing the positioning top block (36), and a steel ball (312) is arranged between the sloped portion (311) and the positioning top block (36); a screw rod (32) is transversely installed inside the installation plug-in tube (31), wherein the first end of the screw rod is threadedly connected to the movable block (35), and the second end of the screw rod extends to the first end of the installation plug-in tube (31) and is connected to the knob (34).

8. The bicycle rack mounted on the rear of a vehicle according to claim 7, characterized in that: The installation plug-in tube (31) is a square tube, and the movable block (35) is flat and is arranged along the diagonal direction of the cross section of the installation plug-in tube (31).

9. The bicycle rack mounted on the rear of a vehicle according to claim 7, characterized in that: The movable block (35) is provided with a guide strip hole (38) along its length direction, and a plug shaft (39) passing through the guide strip hole (38) is horizontally inserted on the side wall of the installation plug tube (31).

10. The bicycle rack mounted on the rear of a vehicle according to claim 7, characterized in that: A through slot (310) is provided in the middle of the movable block (35), and openings (313) corresponding to the through slot (310) are provided on the side walls of both sides of the installation plug-in tube (31).

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