TWI712524B - Bicycle carrying frame and joint for vehicle that can prevent the main pole from falling rapidly - Google Patents

Abstract

A bicycle carrier frame and joints for bicycles that can prevent the main rod from falling rapidly. The joints of the bicycle carrier frame mainly provide the function of preventing the rapid falling of steps. The joints include: a body, which mainly has two legs. Plate, the two vertical plates each have a guide hole; and a swivel assembly with a hollow body, a mounting table, an actuating rod, a handle, an interference piece and a spring; wherein the bottom of the two guide holes The edge system has a standing positioning groove at the front end, an inclined positioning groove at the rear end, and an intermediate positioning groove between the standing positioning groove and the inclined positioning groove; the interference piece elastically abuts against the two guide holes The bottom of one of the standing positioning groove, the inclined positioning groove, and the intermediate positioning groove in the inside.

Description

Bicycle carrying frame and joint for vehicle that can prevent the main pole from falling rapidly

The invention relates to a bicycle carrying frame, and particularly refers to a bicycle carrying frame and its joints that can prevent the main pole from falling rapidly.

Taiwan Invention Patent No. I642573 discloses a bicycle carrier frame. In this case, between the second connecting seat (Picture No. 41) and the second sliding seat (Picture No. 22) is a second slider (Picture No. 22). No. 45) is elastically embedded in the positioning groove (drawing No. 223, 224) in the second sliding arc groove (drawing No. 222), and when the second sliding block is inserted into the positioning groove (223), the second connecting seat is It is upright; when the second sliding block is embedded in the positioning groove (224), the second connecting seat is in a downside-down horizontal shape. In this case, the effect of positioning the second connecting seat in the upright position and the horizontal position is achieved by the above-mentioned embedding between the second sliding block and the positioning groove.

When the second connecting seat is to be changed from the upright position to the horizontal position, the embedded state of the second slider needs to be released first, that is, the second slider is operated by operating the first knob (Figure No. 43) Move upward to escape from the positioning groove (223), and when the second connecting seat is swung to a horizontal position, the second slider is pushed into the positioning groove by the elastic force of the second spring (Figure No. 46). 224), the operation is now complete.

However, since the aforementioned second connecting seat is connected to the main body of the entire carrying frame, the entire carrying frame has considerable weight. If a bicycle is installed on the entire carrying frame, the weight of the second connecting seat Is great. In this way, when the second connecting seat is to be changed from the upright position to the horizontal position, if the operator does not hold the vertical pole (drawing No. 121) or the structure connected with it to slowly move it down, the entire carrying The frame is very likely to fall rapidly due to its heavier body weight when it is swinging downwards, which is likely to injure the operator or cause the second sliding seat (Figure No. 22) to be caused by the huge force. Damaged by impact. Therefore, the above-mentioned shortcomings of the joint composed of the above-mentioned connecting seat and the sliding seat and the carrier frame using the above-mentioned joint need to be improved.

The aforementioned conventional technology may injure people or be damaged due to the rapid fall of the carrier frame in operation, and should be improved to make the carrier frame safer and more durable.

Based on the above problems, the present invention proposes a bicycle carrier frame and its joint that can prevent the main rod from falling rapidly. It can add a stop mechanism when the bicycle carrier frame is swung from standing to tilt, so that The bicycle carrier frame will not fall from the standing state to the most inclined state at a time, but will stop in the middle of the stroke, so as to avoid hurting people, and can effectively protect the carrier frame itself from damage, making the bicycle carrier frame More safe and durable.

In order to achieve the above effects, the present invention proposes a rapid fall prevention joint for a bicycle carrier frame, which includes: a base body, which mainly has two vertical plates, the two vertical plates are parallel to each other and separated by a predetermined distance, and the two vertical plates of the base body The plates respectively have a guide hole, and the guide holes of the two vertical plates are opposite to each other; a swing assembly is pivotally mounted on the two vertical plates and located between the two vertical plates; the swing assembly has A hollow body, a mounting table, an actuating rod, a handle, an interference piece, and a spring, the mounting table is arranged on the hollow body, the actuating rod passes through the mounting table and partially extends into the hollow body, the handle Located on the installation platform and connected with the actuating rod, the actuating rod can be operated to drive the actuating rod to move up and down relative to the hollow body. The interference member is arranged at the bottom of the actuating rod and moves with the actuating rod, and the interference member moves toward two An interference rod extends into the guide holes of the two vertical plates. The two ends of the spring abut against the interference member and the mounting platform respectively. The elastic restoring force makes the interference member and the actuating rod Move downward; wherein the bottom edge of the two guide holes has a standing positioning groove at the front end, an inclined positioning groove at the rear end, and an intermediate positioning groove located between the standing positioning groove and the inclined positioning groove Each of the aforementioned grooves has a groove bottom and a groove wall located behind the groove bottom; the elastic restoring force of the spring makes the two interference rods abut against the standing positioning groove, the inclined positioning groove and the inclined positioning groove located in the two guide holes. The bottom of one of the intermediate positioning grooves, wherein when the two interference rods abut against the bottom of the standing positioning groove in the two guide holes, the hollow body is in a standing shape; the two interference rods abut against the two guide holes When the bottom of the inclined positioning groove in the lead hole is introduced, the hollow body is inclined.

In addition, the present invention also proposes a bicycle carrier frame that can prevent the main rod from falling rapidly, mainly using the aforementioned joints, and the overall structure includes: a connecting rod, one end of which is used as a front end for installation in a car The connecting part of the rear of the vehicle; the seat body mainly has two vertical plates, the two vertical plates are parallel to each other and are arranged at the rear section of the connecting rod at a predetermined distance, the two vertical plates of the seat body respectively have a guide hole, the two The guiding holes of the vertical plates are opposite to each other, and the two guiding holes are located above the pivot; a swing assembly is pivotally pivoted on the two vertical plates and located between the two vertical plates, the rotation The pendulum assembly is provided with at least one bicycle mounting frame; the swing assembly has a hollow body, a mounting table, an actuating rod, a handle, an interference piece, and a spring. The mounting table is arranged on the hollow body and the actuating rod passes through The mounting table has a part extending into the hollow body, the handle is located on the mounting table and connected to the actuating rod, and can be operated to drive the actuating rod to move up and down relative to the hollow body, and the interference member is provided on the actuating rod The bottom part moves with the actuating rod, and the interference member extends an interference rod on both sides to extend into the guide holes of the two vertical plates. The two ends of the spring abut the interference member and the mounting The elastic restoring force makes the interference member and the actuating rod move downward; wherein the bottom edge of the two guide holes has a standing positioning groove at the front end, an inclined positioning groove at the rear end, and An intermediate positioning groove between the standing positioning groove and the inclined positioning groove. Each of the aforementioned grooves has a groove bottom and a groove wall located behind the groove bottom; the elastic restoring force of the spring makes the two interference rods abut against the two interference rods. The bottom of one of the standing positioning groove, the inclined positioning groove and the intermediate positioning groove in the guide hole, wherein when the two interference rods abut the bottom of the standing positioning groove in the two guide holes, the The hollow body is in a standing shape; when the two interference rods abut against the bottom of the inclined positioning groove in the two guide holes, the hollow body is in an inclined shape.

Thereby, the rapid fall prevention joint of the bicycle carrying frame proposed by the present invention and the bicycle carrying frame for bicycles that can prevent the main rod from falling rapidly using the joints, in actual use, use the intermediate The setting of the positioning slot allows the hollow body to be rotated from the standing state to the inclined state. If the handle is not operated by personnel, it will be stopped midway, so that the bicycle carrier frame will not be The standing state drops directly to the most inclined state at one time, and will stop in the middle of the stroke to avoid injury to personnel, and can effectively protect the carrier frame itself from damage, making the bicycle carrier frame safer and more durable .

In order to explain in detail the technical features of the present invention, the following preferred embodiments are described in conjunction with the drawings, in which:

As shown in Figs. 1 to 5, a rapid fall prevention joint 10 for a bicycle carrying frame proposed in the first preferred embodiment of the present invention is mainly composed of a base body 11 and a swing assembly 21, wherein:

The base 11 mainly has two vertical plates 12, the two vertical plates 12 are parallel to each other and separated by a predetermined distance, the two vertical plates 12 of the base 11 respectively have a guide hole 14, and the two vertical plates 12 have guiding holes The 14 series face each other.

The swing assembly 21 is pivotally mounted on the two vertical plates 12 and located between the two vertical plates 12 in a rotatable manner. The swing assembly 21 has a hollow body 22, a mounting table 23, an actuating rod 24, a handle 25, an interference member 26, and a spring 27. The hollow body 22 is a tube and is pivoted by a pivot 221 The two vertical plates 12 and the hollow body 22 respectively have a through hole 222 on both sides of the hollow body 22. The mounting table 23 is provided on the top of the hollow body 22. The actuating rod 24 passes through the mounting table 23 and partially extends into the hollow body. The main body 22, the handle 25 is located on the mounting platform 23 and connected to the actuating rod 24, can be operated to drive the actuating rod 24 to move up and down relative to the hollow body 22, the interference member 26 is provided at the bottom of the actuating rod 24 and follows As the actuating rod 24 moves, the interference member 26 extends to both sides, an interference rod 261 passes through the two through holes 222 and extends into the guide hole 14 of the two vertical plates 12, and the spring 27 is pressed by its two ends respectively. Abutting against the interference member 26 and the mounting platform 23, the elastic restoring force causes the interference member 26 and the actuating rod 24 to move downward. In the first embodiment, the guide hole 14 of the two vertical plates 12 is located above the pivot 221, the handle 25 is provided on the top of the actuating rod 24, and a handle 251 is formed on both sides of the actuating rod 24 And a cam 252 which acts on the top surface of the mounting table 23.

Wherein, the bottom edge of the two guide holes 14 has a standing positioning groove 141 at the front end, an inclined positioning groove 145 at the rearmost end, and an intermediate positioning groove between the standing positioning groove 141 and the inclined positioning groove 145. For the groove 143, each of the aforementioned grooves has a groove bottom and a groove wall located behind the groove bottom, and the groove bottom of each aforementioned groove is flat so that the groove bottom and the groove wall located behind it are substantially perpendicular.

Wherein, the bottom of each interference rod 261 is flat and fits the bottom of each of the aforementioned grooves, and according to the swing position of the hollow body 22, the elastic restoring force of the spring 27 makes the two interference rods 261 respectively abut against When the standing positioning groove 141, the inclined positioning groove 145, and the middle positioning groove 143 are at the bottom of one, and the two interference rods 261 abut the standing positioning groove 141 in the two guide holes 14, the hollow body 22 is in a standing shape; when the two interference rods 261 abut the inclined positioning grooves 145 in the two guide holes 14, the hollow body 22 is inclined. In more detail, the guide hole 14 of each vertical plate 12 and the groove wall in front of the groove bottom of the middle positioning groove 143 in it are inclined with respect to the groove bottom, and the inclined The bottom of the positioning groove 145 is adjacent to the top edge of the rear groove wall of the middle positioning groove 143 to form a stepped shape.

In addition, a shoulder 147 extends outward from the upper edge of each vertical plate 12 at the upper edge of the guide hole 14, and a protective cover 148 extends downward from the shoulder 147. The protective cover 148 of each vertical plate 12 is connected to The guide hole 14 is separated by a predetermined distance and shields the guide hole 14. The protective cover 148 can be used to protect people from accidentally touching the guide hole 14, thereby avoiding accidents of being pinched.

The structure of the first embodiment has been described above, and the operation state of the first embodiment will be described next.

As shown in Figure 6, before operation, the present invention is assembled on a bicycle carrier frame as a joint for swinging. During assembly, the main body 91 of a bicycle carrier frame is set in the hollow body. 22, and the main body 91 of the bicycle carrier frame mainly includes a base 92 and a bicycle mounting frame 94, and the base 92 is disposed on the hollow body 22, for example, by welding, and the base body 11 is connected to A connecting rod 99, the connection here can also be connected by welding. After this assembly is completed, a bicycle carrier frame for a vehicle that can prevent the main rod from falling rapidly is formed, and the connecting rod 99 can be used as a connecting pipe (not shown in the figure) installed at the rear of an automobile.

As shown in FIGS. 6-9, during operation, when the two interference rods 261 abut the standing positioning groove 141 at the front end of the two guide holes 14, the hollow body 22 is in a standing shape, and this position is It is the position where the solid 91 of the bicycle carrier frame is in a standing state, as shown in FIG. 7. In this standing state, taking a guide hole 14 as an example, the interference rod 261 is located in the standing positioning groove 141 and abutting against the bottom of the groove, and is restricted by the groove wall behind the standing positioning groove 141 Therefore, the interference rod 261 cannot move to the intermediate positioning groove 143, but is equivalent to being positioned in the standing positioning groove 141. Then, the interference rod 261 passes through the through hole 222 of the hollow body 22 to make the hollow The edge of the perforation 222 of the body 22 acts on the interference rod 261 to produce the effect of co-moving with the interference rod 261 in a rotational and pendulum relationship, thereby positioning the main body 91 of the bicycle carrier frame in its standing state.

As shown in FIGS. 7 and 8 in conjunction with FIGS. 4 and 5, when the main body 91 of the bicycle carrier frame is to be changed from the standing state of FIG. 7 to the inclined state of FIG. 8, the handle 25 needs to be pulled by a human hand. When the handle 25 is raised, the cam 252 is used as a fulcrum to act on the mounting table 23, and the actuating rod 24 is pulled up, so that the interference member 26 and the two interfere The rod 261 is pulled up, and at the same time the spring 27 is further compressed. Taking the state of a guide hole 14 as an example, after the interference rod 261 rises to the groove wall higher than the rear of the standing positioning groove 141, it leaves the standing positioning groove 141. At this time, the positioning state is released. The user can tilt the main body 91 of the bicycle carrier frame backward. In the process of tilting, if the user continues to hold the handle 25, the interference rod 261 will cross the middle positioning groove 143 and directly enter the inclined positioning groove 145, and because the main body 91 of the bicycle carrier frame At this time, it is in an inclined state, so its weight will act on the groove wall behind the inclined positioning groove 145 through the interference rod 261. After the user releases the handle 25, the elastic restoring force of the spring 27 will press the interference rod 261 against the bottom of the inclined positioning groove 145. At this time, the interference rod 261 abuts against the bottom of the inclined positioning groove 145 and the groove wall at the rear. At this point, the hollow body 22 is inclined, and the main body 91 of the bicycle carrier frame is inclined and stabilized at this position under the action of gravity. Its state is shown in FIG. 8.

As shown in FIGS. 7-9, in the aforementioned process of changing the main body 91 of the bicycle carrier frame from the standing state to the inclined state, in the state in a guide hole 14, the user is pulling the handle 25. After the interference rod 261 is lifted out of the standing positioning groove 141, after the interference rod 261 moves away from the standing positioning groove 141 and has not yet entered the inclined positioning groove 145, if the user releases At this time, the handle 25, under the action of the elastic restoring force of the spring 27, the interference rod 261 immediately moves downward to abut against the bottom of the middle positioning groove 143. At the same time, the main body 91 of the bicycle carrier frame will also be slightly inclined due to the process of changing from the standing state to the inclined state, and will start to accelerate and tilt due to the action of gravity. The interference rod 261 follows the bicycle carrier frame The inclination of the main body 91 moves along the bottom of the intermediate positioning groove 143 until it stops against the groove wall behind the intermediate positioning groove 143, and makes the hollow body 22 and the main body 91 of the bicycle carrier stop. Down, and the state shown in Figure 9. At this time, the main body 91 of the bicycle carrier frame is stopped when it is tilted halfway down, and it will not stop when it directly tilts and drops to the above-mentioned tilted position. If the user still wants to move the main body 91 of the bicycle carrier frame to the inclined position, then pull the handle 25 to raise the interference rod 261 so that it is higher than the groove wall behind the middle positioning groove 143. The main body 91 of the bicycle carrier is tilted back again until the interference rod 261 abuts against the groove wall behind the inclined positioning groove 145, and returns to the state of FIG. 8.

To move the main body 91 of the bicycle carrier together with the hollow body 22 from the inclined position to the standing position, the user does not need to operate the handle 25, but only needs to directly push the main body 91 of the bicycle carrier Move it from the inclined position to the standing position. During this movement, in the state of a guide hole 14, the interference rod 261 slides from the position against the bottom of the inclined positioning groove 145 to the middle. The positioning groove 143, since the rear groove wall of the middle positioning groove 143 is adjacent to the bottom of the inclined positioning groove 145 and is stepped, the interference rod 261 will directly slide from the bottom of the inclined positioning groove 145 and fall to The bottom of the middle positioning groove 143, then, the interference rod 261 continues to move forward and slides its bottom over the sloped groove wall in front of the bottom of the middle positioning groove 143, although the interference rod 261 will be The top height is slightly higher, but due to the effect of the inclined groove wall, it can slide through unimpededly, and then the interference rod 261 will fall into the standing positioning groove 141. At this point, the movement to the standing position is completed. It should be noted here that the rear groove wall of the middle positioning groove 143 is adjacent to the groove bottom of the inclined positioning groove 145 and is stepped, and the middle positioning groove 143 has an inclined groove wall in front of the groove bottom. This technical feature is to allow the interference rod 261 to slide directly without being obstructed during the movement from back to front, thereby facilitating the operation of the user. However, the present invention may not be provided with the aforementioned stepped structure and inclined groove wall, and is arranged so that the interference rod 261 cannot be passed in a slipping manner between the grooves. In this way, the When the main body 91 of the bicycle carrier is pushed back to the standing position from the inclined position, the user still needs to operate the handle 25 to pull up the interference lever 261 in order to successfully complete the operation, and this structure is used in the main body of the bicycle carrier When 91 is changed from the standing state to the inclined state, even if the user accidentally releases the handle 25, the interference rod 261 can still directly enter the intermediate positioning groove 143 first, and can still exert its problem of preventing rapid falling.

As shown in FIG. 10, when the aforementioned rapid fall prevention joint is assembled on a bicycle carrier frame, if the main body 91' of the bicycle carrier frame is different from the aforementioned structure, it includes a pole 96' and a bicycle mounting frame. When the frame 94' does not include the base shown in FIG. 6, the assembly method is different from that described above. When assembling, the bottom of the main body 91' of the bicycle carrier frame and the vertical rod 96' are directly arranged on the hollow body 22', and the seat body 11' is connected to a connecting rod 99', and the bicycle is installed The frame 94' is arranged on the top of the pole 96'. In this way, the aforementioned effect of preventing rapid fall can also be achieved in operation.

As shown in Figure 11, when the aforementioned anti-rapid drop joint is assembled on a bicycle carrier frame, it can also be applied to the main body 91" of other different bicycle carrier frames, for example, the main body of the bicycle carrier frame. 91" only includes the bicycle mounting frame 94", and does not include the base of Fig. 6 and the pole of Fig. 10. As a result, there will be a different assembly method. When assembling, the elongated hollow body 22'' is directly used as a vertical rod, and the base 11'' is connected to a connecting rod 99''. In this way, the aforementioned effect of preventing rapid fall can also be achieved in operation.

It can be seen from the above that the rapid fall prevention joint 10 of the present invention, in actual use, through the provision of the intermediate positioning groove 143, the hollow body 22 can be swung from the standing state to the inclined state. If the handle is not operated by personnel, it will be stopped midway. Thereby, the main body 91 of the bicycle carrier frame will not drop directly from the standing state to the most inclined state at one time, but will stop on the middle stroke, avoiding injury to personnel, and can effectively protect the carrier frame It will not damage itself, making the bicycle carrying frame safer and more durable. If the handle 25 is operated by a person, the person can freely choose whether to directly allow the hollow body 22 to swing from the standing state to the inclined state. When the rapid fall prevention joint 10 of the present invention is mounted on a bicycle carrier frame, a bicycle carrier frame for a vehicle that can prevent the main pole from falling rapidly is formed.

In addition, as shown in FIG. 12, it should be supplemented that there may be more than one intermediate positioning groove 143 between the standing positioning groove 141 and the inclined positioning groove 145 of the present invention, that is, between the standing positioning groove 141 and the inclined positioning groove 145. There may be more than two intermediate positioning grooves 143 between the inclined positioning grooves 145, depending on the stroke between the standing positioning groove 141 and the inclined positioning groove 145.

10: A bicycle carrier frame for vehicles that can prevent the main pole from falling rapidly

11: Seat

12: Vertical board

14: guide hole

141: Standing Positioning Slot

143: Intermediate positioning slot

145: Tilt positioning slot

147: Shoulder

148: Cover

21: Swivel assembly

22: Hollow body

221: Pivot

222: Piercing

23: Installation table

24: Actuating lever

25: handle

251: Handheld

252: Cam

26: Interference piece

261: Interference lever

27: Spring

91: The main body of the bicycle carrying frame

92: Base

94: Bike mount

99: connecting rod

11’: Seat

22’: Hollow body

91’: The main body of the bicycle carrier

94’: Bicycle mount

96’: Pole

99’: connecting rod

11’’: Seat

22’’: Hollow body

91’’: The main body of the bicycle carrier

94’’: Bicycle mount

99’’: connecting rod

Figure 1 is a combined perspective view of a preferred embodiment of the present invention. Figure 2 is a side view of a preferred embodiment of the present invention, with the cover and shoulder removed. 3 is a schematic cross-sectional view of a preferred embodiment of the present invention, which mainly shows the internal structure of the swing assembly. Figure 4 is similar to Figure 3, but is a schematic diagram of the action. Fig. 5 is similar to Fig. 2 but is a schematic diagram of the action, and is the same action as Fig. 3. Fig. 6 is an assembly diagram of a preferred embodiment of the present invention. Fig. 7 is a side view of Fig. 6 in a standing state. Fig. 8 is an action diagram of Fig. 7 in an inclined state. Fig. 9 is another action diagram of Fig. 7, and shows a state where the interference rod is against the intermediate positioning groove. Fig. 10 is another assembly diagram of a preferred embodiment of the present invention. Fig. 11 is another assembly diagram of a preferred embodiment of the present invention. Figure 12 is another implementation state diagram of a preferred embodiment of the present invention.

10: A bicycle carrier frame for vehicles that can prevent the main pole from falling rapidly

11: Seat

12: Vertical board

14: guide hole

141: Standing Positioning Slot

143: Intermediate positioning slot

145: Tilt positioning slot

21: Swivel assembly

22: Hollow body

221: Pivot

222: Piercing

23: Installation table

24: Actuating lever

25: handle

251: Handheld

252: Cam

261: Interference lever

27: Spring

Claims (13)

A joint for preventing rapid fall of a bicycle carrier frame includes: a base body mainly having two vertical plates, the two vertical plates are parallel to each other and separated by a predetermined distance, the two vertical plates of the base body respectively have a guide hole, the The guide holes of the two vertical plates are opposite to each other; a swing assembly is pivotally mounted on the two vertical plates and located between the two vertical plates; the swing assembly has a hollow body, a mounting platform, and Actuating rod, a handle, an interference piece and a spring, the mounting table is provided on the hollow body, the actuating rod passes through the mounting table and partially extends into the hollow body, the handle is located on the mounting table and is connected to the actuator The rod can be operated to drive the actuating rod to move up and down relative to the hollow body. The interference member is arranged at the bottom of the actuating rod and moves with the actuating rod, and the interference member extends an interference rod to both sides to extend into In the guide holes of the two vertical plates, the two ends of the spring abut against the interference member and the mounting table respectively, and its elastic restoring force makes the interference member and the actuating rod move downward; it is characterized in that: The bottom edge of the two guide holes has a standing positioning groove at the front end, an inclined positioning groove at the rear end, and an intermediate positioning groove between the standing positioning groove and the inclined positioning groove. Each of the aforementioned grooves has a groove. Bottom and the groove wall behind the groove bottom; the elastic restoring force of the spring makes the two interference rods abut one of the standing positioning groove, the inclined positioning groove and the intermediate positioning groove in the two guide holes The bottom of the groove, wherein, when the two interference rods abut against the bottom of the standing positioning groove in the two guide holes, the hollow body is in a standing shape; the two interference rods abut against the inclined positioning in the two guide holes When the groove is at the bottom, the hollow body is inclined. According to item 1 of the scope of patent application, the rapid fall prevention joint for the bicycle carrier frame, wherein: the hollow body is pivoted on the two vertical plates by a pivot, and the hollow body has two sides respectively A perforation, the mounting platform is set at the top of the hollow body, the two interference rods extend through the two perforations into the guide holes of the two vertical plates, and the guide holes of the two vertical plates are located above the pivot . According to the first item of the scope of patent application, the rapid fall prevention joint of the bicycle carrier frame, wherein: the handle is arranged at the top of the actuating rod, and a hand-held part and a cam are formed on both sides of the actuating rod. The cam is Act on the top surface of the installation table. According to the rapid fall prevention joint of the bicycle carrier frame described in the first item of the scope of patent application, wherein: the guide hole of each vertical plate, the standing positioning groove, the intermediate positioning groove, and the inclined positioning groove, The bottom of the groove is flat and substantially perpendicular to the groove wall located behind the bottom of the groove; the bottom of each interference rod is flat, and is separated by the elastic force of the spring according to the swing position of the hollow body Abutting against the bottom of one of the standing positioning groove, the intermediate positioning groove and the inclined positioning groove. According to item 1 of the scope of patent application, the rapid fall prevention joint of the bicycle carrier frame, wherein: the guide hole of each vertical plate, the groove wall in front of the groove bottom of the middle positioning groove in it is opposite to The bottom of the groove is inclined with high front and low back; the groove bottom of the inclined positioning groove in each of the guide holes of the vertical plate is adjacent to the top edge of the rear groove wall of the intermediate positioning groove and forms a stepped shape. . According to the first item of the scope of patent application, the rapid fall prevention joint of the bicycle carrier frame, wherein: each of the vertical plates is attached to the upper edge of the guide hole and extends outward with a shoulder extending downward from the shoulder A protective cover. The protective cover of each vertical plate is spaced a predetermined distance from the guide hole and shields the guide hole. A bicycle carrying frame for a vehicle that can prevent the main pole from falling rapidly, comprising: a connecting rod, one end of which is used as a front end to be installed at the connecting part of the rear of the car; a base body mainly having two vertical plates, the The two vertical plates are parallel to each other and are arranged at the rear section of the connecting rod with a predetermined distance apart, the two vertical plates of the seat body respectively have a guiding hole, and the guiding holes of the two vertical plates are opposite to each other; A swing assembly is pivotally pivoted on the two vertical plates and located between the two vertical plates, the swing assembly is provided with at least one bicycle mounting frame; the swing assembly has a hollow body, a mounting platform, An actuating rod, a handle, an interference piece and a spring, the mounting platform is provided on the hollow body, the actuating rod passes through the mounting platform and partially extends into the hollow body, the handle is located on the mounting platform and connected to the The actuating rod can be operated to drive the actuating rod to move up and down relative to the hollow body. The interference member is arranged at the bottom of the actuating rod and moves with the actuating rod, and the interference member extends to both sides by an interference rod respectively. Into the guide holes of the two vertical plates, the spring abuts the interference member and the mounting table with its two ends respectively, and its elastic restoring force causes the interference member and the actuating rod to move downward; it is characterized by: The bottom edge of the two guide holes has a standing positioning groove at the front end, an inclined positioning groove at the rear end, and an intermediate positioning groove between the standing positioning groove and the inclined positioning groove. Each of the aforementioned grooves has The groove bottom and the groove wall behind the groove bottom; the elastic restoring force of the spring makes the two interference rods abut against one of the standing positioning groove, the inclined positioning groove and the intermediate positioning groove located in the two guide holes The bottom of the groove, wherein, when the two interference rods abut against the bottom of the standing positioning groove in the two guide holes, the hollow body is in a standing shape; the two interference rods abut the inclined in the two guide holes When positioning the bottom of the groove, the hollow body is inclined. According to item 7 of the scope of patent application, the bicycle carrier frame capable of preventing the main rod from falling rapidly, wherein: the swing assembly further has a vertical rod, the bottom of the vertical rod is fixed to the hollow body, the At least one bicycle is installed and erected on the top of the vertical pole; the hollow body is pivoted on the two vertical plates by a pivot, and two sides of the hollow body are respectively provided with a through hole, the mounting platform is attached to the top of the hollow body, and the two The interference rod system passes through the two through holes and extends into the guide hole of the two vertical plates, and the guide hole of the two vertical plates is located above the pivot. According to item 7 of the scope of patent application, the bicycle carrier frame capable of preventing the main rod from falling rapidly, wherein: the handle is provided at the top of the actuating rod, and a handle and a cam are formed on both sides of the actuating rod , The cam system acts on the top surface of the mounting table. According to item 7 of the scope of patent application, the bicycle carrier frame capable of preventing the main pole from falling rapidly, wherein: the guide hole of each vertical plate, the standing positioning groove, the intermediate positioning groove and the The inclined positioning groove has a flat groove bottom and is substantially perpendicular to the groove wall located behind the groove bottom; the bottom of each interference rod is flat, and is affected by the spring according to the swing position of the hollow body The elastic force acts against the bottom of one of the standing positioning groove, the middle positioning groove and the inclined positioning groove respectively. According to item 7 of the scope of patent application, the bicycle carrier frame capable of preventing the main pole from falling rapidly, wherein: the guide hole of each vertical plate, the groove wall in front of the groove bottom of the middle positioning groove in it , Is inclined with respect to the bottom of the groove; the guide hole of each vertical plate, the bottom of the inclined positioning groove in it is adjacent to the top edge of the rear groove wall of the middle positioning groove, and Combine to form a ladder. According to item 7 of the scope of patent application, the bicycle carrier frame capable of preventing the main rod from falling rapidly, wherein: each of the vertical plates is attached to the upper edge of the guide hole and a shoulder extends outwards from the shoulder A protective cover extends downwards from the upper part, and the protective cover of each vertical plate is spaced a predetermined distance from the guide hole and shields the guide hole. According to item 7 of the scope of patent application, the bicycle carrier frame capable of preventing the main rod from falling rapidly, wherein the hollow body is elongated, and the at least one bicycle is installed and erected on the top of the hollow body.

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