Bicycle fixing rack

Abstract

The present invention provides a bicycle fixing frame. The bicycle fixing frame improves a support rod device on the basis of an existing structure. The improved support rod device comprises a support rod seat, a support rod, a wheel seat, a lever and a locking bolt. Both ends of the support rod seat are provided with a U-shaped notch. The support rod is a hollow tube and a U-shaped reinforcing plate is provided on the inner top surface and the inner bottom surface. The upper reinforcing plate and the inner top surface form an upper cavity. The lower reinforcing plate and the inner bottom surface form a lower cavity. The upper cavity top surface and the lower cavity bottom surface are both provided with a through groove. The support rod is fixed by a nut after a bolt passes through the lower through groove and the U-shaped notch. Two wheel seats are provided on the support rod. A slider embedded in the upper cavity is provided at the bottom of the wheel seat. A lever groove is provided on the wheel seat. A lever is provided in the lever groove. The lower end of the lever is an eccentric shaft. The bolt cap of the tightening bolt is placed in the upper cavity. The bolt column passes through the upper through groove and the lever groove and is screwed with the eccentric shaft. Whether the locking bolt is locked and fixed to the wheel seat can be controlled by flipping the lever.

Description

Technical Field

[0001] The invention relates to a bicycle fixing rack. Background Art

[0002] Bicycle fixing racks are mostly used at the rear of a car. Existing bicycle fixing racks generally include a connecting rod, a support rod and a vertical rod. For example, a bicycle fixing rack disclosed in the authorization announcement number CN209037497U has a connecting rod connected to the car connector perpendicular to the rear of the car, a square tube support rod perpendicular to the connecting rod is fixed at the end of the connecting rod, a vertical rod is arranged upwardly from the middle of the support rod, and a wheel seat is arranged on both sides of the two ends of the support rod. The wheel seat is arranged on the support rod of the square tube through a clamping sleeve, and the wheel seat is fixed to the support rod by tightening the knob arranged on the clamping sleeve. In this way, a bicycle can be placed on each side of the support rod, and the front and rear wheels of the bicycle are respectively placed on the wheel seats on the same side of the two ends of the support rod, and then locked to the crossbar of the bicycle tripod through a locking device at the upper end of the vertical rod.

[0003] The existing bicycle fixing rack has the following disadvantages: first, some existing power-assisted bicycles are provided with a motor on the rear wheel, and the center of gravity of the bicycle is biased toward the rear wheel. If the bicycle is not fixed toward one end of the support rod, the support rod will generate a torsion force on the connecting rod, which is easy to damage the turning device in the middle of the connecting rod that is used to connect the upper and lower connecting rods and has a turning effect. At present, the bicycle fixing rack is provided with a wheel seat on both sides of the two ends of the square tube support rod. Although each wheel seat can slide along the support rod to adjust the appropriate spacing between the two wheels through a clamp and a knob, when the bicycle is placed on the wheel seats at both ends of the support rod, it is relatively difficult to push the two wheel seats fixing the front and rear wheels to slide toward one end of the support rod at the same time, and it is inconvenient to adjust. Moreover, if two bicycles with different centers of gravity are fixed on the same support rod, it is also difficult to adjust the center of gravity position of the bicycles. In addition, the existing bicycle fixing frame has a flip device arranged in the middle of the connecting rod, in which a U-shaped seat is welded at the end of the lower connecting rod, and the arc-shaped fixing plates on both sides of the U-shaped seat are provided with a hinge hole in the center and a plurality of plug holes at the edge. The end of the upper connecting rod not connected to the support rod is hinged to the hinge holes of the two arc-shaped fixing plates of the U-shaped seat by a hinge bolt, and a horizontal plug hole is provided on the upper connecting rod near the hinge end, and is plugged and fixed with the plug hole on the arc-shaped fixing plate of the U-shaped seat by a latch, so as to realize the opening and folding of the upper connecting rod for use and folding and storage. However, this flip device which adopts the method of plugging and pulling out the latch to realize the folding of the connecting rod is inconvenient to use. Summary of the invention

[0004] In view of the defects of the existing bicycle fixing racks, the technical problem to be solved by the present invention is to provide a bicycle fixing rack with convenient center of gravity adjustment; and the bicycle fixing rack also needs to have the technical effect of being more convenient when flipped upwards.

[0005] In order to achieve the above-mentioned object, according to one aspect of the present invention, the present invention is implemented by the following technical measures: a bicycle fixing frame, comprising: a connecting rod, a turning device, a supporting rod device, a vertical rod and a binding strap, wherein the connecting rod is composed of an upper connecting rod and a lower connecting rod, one end of the upper connecting rod is fixed to the lower connecting rod by the turning device, so that the upper connecting rod can be turned toward the lower connecting rod side by the turning device, the vertical rod is arranged on the upper connecting rod, and the supporting rod device is also arranged on the upper connecting rod at one end or both ends of the vertical rod,

[0006] The support rod device comprises a support rod seat, a support rod, a wheel seat, a lever button and a locking bolt;

[0007] The support rod seat is fixed on the upper connecting rod and is arranged in a cross with the upper connecting rod, and both ends of the support rod seat are provided with U-shaped notches;

[0008] The support rod is a hollow tube, and a U-shaped reinforcement plate is provided on the inner top surface and the inner bottom surface of the support rod, an upper cavity is formed between the upper reinforcement plate and the inner top surface, and a lower cavity is formed between the lower reinforcement plate and the inner bottom surface, and an upper through groove is provided on the top surface of the upper cavity, and a lower through groove is provided on the bottom surface of the lower cavity, and the support rod is fixed to the support rod seat by a bolt passing through the lower through groove and the U-shaped notch and then tightened by a nut, and the bolt cap of the bolt is in the lower cavity, and the bolt column of the bolt can slide along the lower through groove;

[0009] The wheel seat is movably fixed to the support rod, and each support rod is provided with two wheel seats, a slider is provided at the bottom of the wheel seat, the slider is embedded in the upper cavity and can slide back and forth along the upper through groove, a lever groove is provided on the wheel seat, a through hole is provided at the bottom of the lever groove, a lever is provided in the lever groove, the lower end of the lever is an eccentric shaft, and a bolt hole is provided in the middle of the eccentric shaft;

[0010] The bolt cap of the locking bolt is placed in the upper cavity, and the bolt column passes through the upper through slot and the through hole at the bottom of the button slot and is screwed to the bolt hole. By turning the button, it is possible to control whether the locking bolt is locked and fixed to the wheel seat;

[0011] The vertical rod and the wheel seat are both fixed with binding straps.

[0012] The bicycle fixing frame is designed with two slidable wheel seats, so it can be suitable for bicycles of different sizes, and the position of the support rod can be adjusted, thus the center of gravity position can be adjusted, and the method of adjusting the center of gravity by only unscrewing the nut is also relatively convenient.

[0013] Furthermore, when support rod devices are provided on the upper connecting rods at both ends of the vertical rod, the vertical rod is a U-shaped vertical rod, and the open end of the vertical rod is hinged to one side of the middle part of the upper connecting rod through a hinge plate, and straps are provided on the two vertical rods of the vertical rod.

[0014] Furthermore, reinforcing ribs are connected between the upper cavity and the lower cavity.

[0015] Furthermore, the flipping device includes a flipping seat, a handle, a pull rod, a handle seat, a positioning pin and a spring;

[0016] The flip seat is a U-shaped seat body and is arranged on the lower connecting rod. The two ends of the opening side of the flip seat are respectively extended upward with arc-shaped fixing plates. The centers of the two arc-shaped fixing plates are provided with relative hinge holes. Bolts are passed through the hinge holes and the upper connecting rod to preliminarily fix the upper connecting rod and the flip seat. A positioning bayonet is respectively provided on the upper edge and the middle edge of the two arc-shaped fixing plates. The upper connecting rod is provided with a strip-shaped through hole that can be opposite to the positioning bayonet, and the upper connecting rod and the flip seat are further fixed after a positioning pin passes through one of the positioning bayonet and the strip through hole.

[0017] A handle is provided in the handle seat;

[0018] One end of the pull rod passes through the handle seat and is fixed to the handle, and the other end of the pull rod is fixed to the middle of the positioning pin. A baffle is welded to the end of the pull rod close to the handle, and a spring is sleeved on the pull rod between the baffle and the outer wall of the handle seat. The above design only requires pulling the handle at the end of the upper connecting rod, and the handle drives the pull rod to move toward one end of the handle, so that the positioning pin connected to the pull rod is disengaged from the positioning bayonet in the middle of the flip seat, and then the upper connecting rod is flipped upward, and the handle is released. The positioning pin slides along the arc edge of the flip seat under the action of the pull rod spring, and when it slides over the upper positioning bayonet of the flip seat, it will be stuck in the upper positioning bayonet, and the support rod and the upper connecting rod are folded and fixed, which is very convenient to use.

[0019] Compared with the prior art, the advantages of the present invention are that the center of gravity of the bicycle can be quickly adjusted according to different bicycles, which can effectively protect the service life of the flip device. At the same time, the folding of the upper connecting rod is also very convenient, so that it is easy to quickly flip and fold upward when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 The present invention is a schematic structural diagram of a bicycle fixing frame.

[0022] Figure 2 The figure is a schematic structural diagram of the support rod device described in the present invention.

[0023] Figure 3 It is a schematic diagram of the structure of the turning device described in the present invention.

[0024] Explanation of the reference numerals in the accompanying drawings: 1. connecting rod; 2. support rod device; 3. flipping device; 4. vertical rod; 5. binding strap; 6. upper connecting rod; 7. lower connecting rod; 8. support rod; 9. support rod seat; 10. wheel seat; 11. lever button; 12. eccentric shaft; 13. U-shaped notch; 14. upper cavity; 15. lower cavity; 16. upper through groove; 17. lower through groove; 18. reinforcing rib; 19. lever button groove; 20. flipping seat; 21. handle seat; 22. handle; 23. pull rod; 24. positioning bayonet; 25. hinge hole; 26. strip through hole; 27. positioning pin; 28. baffle; 29. ​​spring. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0026] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "bottom", "top", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Example 1

[0028] Please refer to Figure 1 A bicycle fixing frame provided in this embodiment includes a connecting rod 1, a supporting rod device 2, a vertical rod 4 and a flipping device 3. The connecting rod 1 includes an upper connecting rod 6 and a lower connecting rod 7 which are parallel to each other. The right side of the upper connecting rod 6 and the left side of the lower connecting rod 7 are connected by the flipping device 3. The right end of the lower connecting rod 7 is connected to the connector at the rear of the car. A U-shaped vertical rod 4 is fixed to the middle of the upper connecting rod 6. Both ends of the vertical rod 4 are hinged to the upper connecting rod 6 through hinged sheets. Both sides of the upper end of the vertical rod 4 are fixed with straps 5. At the same time, a supporting rod device 2 is also fixed to each of the upper connecting rods 6 on the left and right sides of the vertical rod 4.

[0029] Please refer to Figure 2The above-mentioned single support rod device 2 includes a support rod seat 9, a support rod 8, a wheel seat 10 and a pull button 11. The above-mentioned support rod 8 is a hollow aluminum profile, and its cross-section is an inverted isosceles ladder. The top surface of the aluminum profile is slightly concave downward to form an arc-shaped surface. A U-shaped reinforcing plate is fixed to the center of the inner top surface and the inner bottom surface of the above-mentioned support rod 8, so that an upper cavity 14 is formed between the upper reinforcing plate and the inner top surface, and a lower cavity 15 is formed between the lower reinforcing plate and the inner bottom surface. At the same time, an upper through groove 16 is provided on the top surface of the upper cavity 14, and a lower through groove 17 is provided on the bottom surface of the lower cavity 15. At the same time, a reinforcing rib 18 is connected between the upper reinforcing plate and the lower reinforcing plate. The above-mentioned support rod seat 9 is two, and the two support rod seats 9 are respectively welded to the inner and outer sides of the upper connecting rod 6, and a U-shaped notch 13 is opened on the outer side of the support rod seat 9. Of course, the support rod seat 9 here can be integrated, and a notch is opened at the bottom or top of the support rod seat 9, and it is welded and fixed after being clamped on the upper connecting rod 6 through the notch. 8 is located above the support rod seat 9, and is fixed with a nut after the bolt passes through the lower through groove 17 and then through the U-shaped notch 13 of the support rod seat 9. The bolt cap of the fixed bolt is in the lower cavity 15, and the bolt column of the bolt can slide along the lower through groove 17. The above-mentioned wheel seat 10 is two, and a slider is fixed at the bottom of the wheel seat 10. The slider is embedded in the upper cavity 14 and can slide back and forth along the upper through groove 16. The above-mentioned wheel seat 10 is provided with a lever groove 19, and a through hole is provided at the bottom of the lever groove 19. A lever 11 is movably fixed in the lever groove 19. One end of the lever 11 is an eccentric shaft 12, and a bolt hole is provided in the middle of the eccentric shaft 12. The bolt cap of the above-mentioned locking bolt is placed in the upper cavity 14, and the bolt column passes through the upper through groove 16 and the through hole at the bottom of the lever groove 19 and is screwed with the bolt hole. By flipping the lever 11, it can be controlled whether the locking bolt is locked and fixed to the wheel seat 10. At the same time, a strap 5 is also provided on the above-mentioned wheel seat 10.

[0030] Please refer to Figure 3 The above-mentioned flip device 3 includes a flip seat 20, a handle 22, a pull rod 23, a handle seat 21, a positioning pin 27 and a spring 29. The above-mentioned flip seat 20 is a U-shaped seat body and is welded on the lower connecting rod 7. The two ends of the opening side of the flip seat 20 also extend upward with arc-shaped fixing plates. The centers of the two arc-shaped fixing plates are provided with relative hinge holes. Bolts pass through the hinge holes and the upper connecting rod 6 to preliminarily fix the upper connecting rod 6 and the flip seat 20. A positioning bayonet 24 is respectively provided on the upper edge and the middle edge of the two arc-shaped fixing plates. The above-mentioned upper connecting rod 6 A strip through hole 26 is provided on the upper portion which can be opposite to the positioning bayonet 24, and the upper connecting rod 6 and the flip seat 20 are further fixed by passing a positioning pin through one of the positioning bayonet 24 and the strip through hole 26. The handle 22 is movably fixed in the handle seat 21, and the right end of the pull rod 23 passes through the handle seat 21 and is fixed to the handle 22, and the left end of the pull rod 23 is fixed to the middle part of the positioning pin 27. A baffle 28 is welded to the right end of the pull rod 23 near the handle, and a spring 29 is sleeved on the pull rod 23 between the baffle 28 and the outer wall of the handle seat 21.

[0031] When fixing a bicycle on a bicycle fixing rack provided in the present embodiment, the two wheels of the bicycle are placed on the two ends of the support rod 8 outside the two wheel seats 10, and the straps 5 on the vertical rod 4 are tied to the horizontal rod or the diagonal rod of the bicycle tripod. Then, the lever 11 is pulled open from the lever groove 19 of the wheel seat 10, and the two wheel seats 10 are pushed to slide along the support rod 8 to the angle where the wheel and the support rod 8 intersect, and the wheels are fixed by the straps 5 of the wheel seat 10. Then, the lever 11 is buckled into the lever groove 19, and the wheel seat 10 is locked by the locking bolt connected to the lever 11. The bicycle is conveniently fixed on the bicycle fixing rack. When the center of the bicycle deviates to one side of the upper connecting rod 6, it is only necessary to loosen the nut on the support rod seat 9, and the lower through groove 17 of the support rod 8 can slide along the bolt to adjust the center of gravity of the bicycle. Then, the nut is tightened to fix the support rod 8. In this way, it is not easy to damage the turning device 3 when transporting the bicycle, and the two bicycles are respectively fixed on the independent support rod 8. Even if the center of gravity of the bicycles is different, they will not affect each other. In addition, when it is necessary to flip and fold the bicycle fixing frame upward, it is only necessary to pull the handle 22 at the end of the upper connecting rod 6, and the handle 22 drives the pull rod 23 to move into the handle seat, so that the positioning pin 27 connected with the pull rod 23 is disengaged from the positioning bayonet 24 in the middle of the flip seat 20, and then the upper connecting rod 6 is flipped upward, and the handle 22 is released. The positioning pin 27 slides along the arc edge of the flip seat 20 under the action of the spring 29, and when it slides to the upper positioning bayonet 24 of the flip seat 20, it will be stuck in the upper positioning bayonet 24, and the support rod 8 and the upper connecting rod 6 are folded and fixed, which is very convenient to use. Similarly, when the handle 22 and the pull rod 23 pull the positioning pin 27 out of the positioning bayonet in the middle of the flip seat, the positioning pin 27 can also slide down along the edge of the flip seat 20 to the end of the lower connecting rod 7, so that the bicycle fixed on the support rod 8 can be tilted and lowered in height, and the tailgate of the car can be opened without unloading the bicycle.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bicycle fixing rack, comprising: A connecting rod, a flip device, a support rod device, a vertical rod and a binding strap, wherein the connecting rod is composed of an upper connecting rod and a lower connecting rod, one end of the upper connecting rod is fixed to the lower connecting rod through the flip device, so that the upper connecting rod can be flipped toward the lower connecting rod side through the flip device, the vertical rod is arranged on the upper connecting rod, and a support rod device is also arranged on the upper connecting rod at one end or both ends of the vertical rod, characterized in that: The support rod device comprises a support rod seat, a support rod, a wheel seat, a lever button and a locking bolt; The support rod seat is fixed on the upper connecting rod and is arranged in a cross with the upper connecting rod, and both ends of the support rod seat are provided with U-shaped notches; The support rod is a hollow tube, and a U-shaped reinforcement plate is provided on the inner top surface and the inner bottom surface of the support rod, an upper cavity is formed between the upper reinforcement plate and the inner top surface, and a lower cavity is formed between the lower reinforcement plate and the inner bottom surface, and an upper through groove is provided on the top surface of the upper cavity, and a lower through groove is provided on the bottom surface of the lower cavity, and the support rod is fixed to the support rod seat by a bolt passing through the lower through groove and the U-shaped notch and then tightened by a nut, and the bolt cap of the bolt is in the lower cavity, and the bolt column of the bolt can slide along the lower through groove; The wheel seat is movably fixed to the support rod, and each support rod is provided with two wheel seats, a slider is provided at the bottom of the wheel seat, the slider is embedded in the upper cavity and can slide back and forth along the upper through groove, a lever groove is provided on the wheel seat, a through hole is provided at the bottom of the lever groove, a lever is provided in the lever groove, the lower end of the lever is an eccentric shaft, and a bolt hole is provided in the middle of the eccentric shaft; The bolt cap of the locking bolt is placed in the upper cavity, and the bolt column passes through the upper through slot and the through hole at the bottom of the button slot and is screwed to the bolt hole. By turning the button, it is possible to control whether the locking bolt is locked and fixed to the wheel seat; The vertical rod and the wheel seat are both fixed with binding straps.

2. A bicycle fixing rack according to claim 1, characterized in that: When the upper connecting rods at both ends of the vertical rod are provided with supporting rod devices, the vertical rod is a U-shaped vertical rod, and the open end of the vertical rod is hinged to one side of the middle part of the upper connecting rod through a hinge piece, and the two vertical rods of the vertical rod are provided with binding straps.

3. The bicycle fixing rack according to claim 1, characterized in that: A reinforcing rib is connected between the upper reinforcing plate and the lower reinforcing plate.

4. The bicycle fixing rack according to claim 1, characterized in that: The flipping device comprises a flipping seat, a handle, a pull rod, a handle seat, a positioning pin and a spring; The flip seat is a U-shaped seat body and is arranged on the lower connecting rod. The two ends of the opening side of the flip seat are respectively extended upward with arc-shaped fixing plates. The centers of the two arc-shaped fixing plates are provided with relative hinge holes. Bolts are passed through the hinge holes and the upper connecting rod to preliminarily fix the upper connecting rod and the flip seat. A positioning bayonet is respectively provided on the upper edge and the middle edge of the two arc-shaped fixing plates. The upper connecting rod is provided with a strip-shaped through hole that can be opposite to the positioning bayonet, and the upper connecting rod and the flip seat are further fixed after a positioning pin passes through one of the positioning bayonet and the strip through hole. A handle is provided in the handle seat; One end of the pull rod passes through the handle seat and is fixed to the handle, and the other end of the pull rod is fixed to the middle of the positioning pin. A baffle is welded on the end of the pull rod close to the handle, and a spring is sleeved on the pull rod between the baffle and the outer wall of the handle seat.

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