Vehicle-mounted bicycle trailer frame

Abstract

The utility model discloses a vehicle-mounted bicycle trailer frame, which relates to the technical field of trailer frames and comprises a connecting support, a lower support is fixedly mounted on the surface of one side of the connecting support, an upper sleeve support is rotatably and stably sleeved on the upper surface of the lower support, and a locking structure is formed between the upper sleeve support and the lower support. The two ends of the upper sleeve support are fixedly sleeved with connecting frame sleeves, a vertical frame is fixedly installed between the two supporting frames, the supporting frames are hinged to the surface of the vertical frame, fixing supporting plates are fixedly installed on the surfaces of the supporting frames, and fastening belts are arranged on the surfaces of the fixing supporting plates; a first reinforcing supporting plate and a second reinforcing supporting plate are fixedly connected between the two fixed supporting plates located on one side of the connecting support. The supporting device has the effect of improving the supporting strength and applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of trailer frames, in particular to a vehicle-mounted bicycle trailer frame. Background Art

[0002] At present, people usually carry luggage, daily necessities, bicycles and other items when traveling outdoors. Since the space in the trunk of a car is limited, it is difficult to put larger items such as bicycles in the trunk. Therefore, a trailer rack is installed at the rear of the car to load bicycles.

[0003] However, as far as the trailer frame is concerned, since the trailer frame will transport bicycles while the car is moving, the strength of the trailer frame support is particularly important after the loaded bicycles are positioned. In addition, the locking structure in the existing trailer frame must be equipped with a dedicated matching frame, and its flexibility and applicability will also be reduced. Utility Model Content

[0004] The purpose of the utility model is to provide a vehicle-mounted bicycle trailer frame, which solves the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle-mounted bicycle trailer frame, comprising a connecting bracket, a lower bracket is fixedly installed on one side surface of the connecting bracket, an upper bracket is rotatably sleeved and firmly connected on the upper surface of the lower bracket, and a locking structure is formed between the upper bracket and the lower bracket, both ends of the upper bracket are fixedly sleeved with a connecting frame sleeve, two vertical frames are fixedly installed between the two connecting frame sleeves, the surfaces of the two vertical frames are hinged to two supporting frames, and the surfaces of the four supporting frames are fixedly installed with fixed support plates, and the surfaces of the fixed support plates are provided with fastening belts;

[0006] A reinforcing support plate 1 and a reinforcing support plate 2 are fixedly connected between the two fixed support plates.

[0007] Optionally, the locking structure includes a latch plate fixedly connected to the inside of one side of the lower bracket, a latch rod is inserted into the inside of the latch plate, a group of symmetrical oblique connecting plates are passed through the end of the latch rod close to the latch plate, a baffle is fixedly connected to the end of the oblique connecting plate away from the connecting bracket 1, a spring is welded between the oblique connecting plate and the latch plate, and the spring is wrapped around the outside of the latch rod, a positioning pin rod is fixedly connected to the end of the latch rod away from the latch plate, a group of symmetrical locking holes are opened on both side surfaces of the lower bracket and are slidably inserted and locked by the positioning pin rod, a combination hole is opened on the upper sleeve bracket, the hole has a transverse section and a vertical section, and both side surfaces of the upper sleeve bracket are opened with clamping holes for clamping on the upper end surface of the positioning pin rod.

[0008] Optionally, a rotating shaft fixed screw is connected through one side of the lower bracket and the upper bracket close to the baffle.

[0009] Optionally, a bottom plate is fixedly mounted on the bottom of the vertical frame by bolts, and rollers are fixedly mounted on the bottom surface of the bottom plate.

[0010] Optionally, a handle is fixedly connected to the end of the vertical frame.

[0011] Optionally, the handle comprises:

[0012] The lower cylinder part and the upper rod part are slidably connected with each other, and a bolt is arranged on the side surface of the lower cylinder part. After the bolt is rotated, the end of the bolt will press against the outer surface of the upper rod part.

[0013] Optionally, a moving part is provided on the outer surface of the upper rod portion, and a binding component is installed on the moving part.

[0014] Optionally, an anti-skid pad is installed at the upper end of the upper rod portion, and a recess is provided on the outer surface of the anti-skid pad.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model utilizes a strong support plate 1 and a strengthening support plate 2 to be respectively connected to the two end portions of the fixed support plate, which can strengthen the load-bearing reliability of the fixed support plate from both sides toward the connected vertical frame direction, and will further strengthen the tight connection of the trailer frame, thereby improving the supporting reliability of the trailer frame.

[0017] In addition, the first reinforcement support plate and the second reinforcement support plate can be flexibly assembled on the trailer frame by means of threaded installation and disassembly, and the assembly structure is simple and convenient for users to operate.

[0018] 2. The utility model forms a locking structure adaptable to a variety of vehicle frames by combining the upper bracket and the lower bracket, so that the upper bracket and the lower bracket have the same adaptability to different vehicle frames, thereby ensuring the flexible adaptability of the trailer frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the structure of the utility model;

[0020] Figure 2 Axonometric measurement of the structure of the utility model Figure 1 ;

[0021] Figure 3 Axonometric view of the folded structure of the utility model Figure 1 ;

[0022] Figure 4 Axonometric view of the folded structure of the utility model Figure 2;

[0023] Figure 5 Axonometric view of the folded structure of the utility model Figure 3 ;

[0024] Figure 6 Axonometric view of the folded structure of the utility model Figure 4 ;

[0025] Figure 7 Axonometric measurement of the structure of the utility model Figure 2 ;

[0026] Figure 8 For this utility model Figure 7 A magnified schematic diagram of the structure at center A;

[0027] Fig. 9 Axonometric measurement of the structure of the utility model Figure 3 ;

[0028] Fig.10 It is a schematic diagram of the structure of the positioning pin rod of the utility model;

[0029] Fig.11 It is a schematic diagram of the structure of the anti-slip pad.

[0030] In the figure: 1-connecting bracket, 2-lower bracket, 3-upper bracket, 5-support frame, 51-vertical frame, 52-bottom plate, 6-roller, 7-fastening belt, 8-handle, 9-reinforcement support plate one, 10-reinforcement support plate two, 15-latch plate, 16-latch rod, 17-oblique connecting plate, 18-baffle, 19-spring, 20-positioning pin rod, 21-locking hole, 22-clamping hole, 23-rotating shaft fixed screw, 24-fixed support plate, 81-lower cylinder, 82-upper rod, 83-bolt, 84-moving part, 85-binding component, 86-anti-slip pad, 87-notch, 100-transverse section, 101-vertical section. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] For example, see Figures 1 to 10The utility model provides a vehicle-mounted bicycle trailer frame, including a connecting bracket 1, a lower bracket 2 is fixedly installed on one side surface of the connecting bracket 1, an upper bracket 3 is rotatably sleeved and firmly connected on the upper surface of the lower bracket 2, and a locking structure is formed between the upper bracket 3 and the lower bracket 2, both ends of the upper bracket 3 are fixedly sleeved with a connecting frame sleeve 11, two vertical frames 51 are fixedly installed between the two connecting frame sleeves 11, the surfaces of the two vertical frames 51 are hinged with two supporting frames 5, the surfaces of the four supporting frames 5 are fixedly installed with fixed supporting plates 24, and the surfaces of the fixed supporting plates 24 are provided with tightening belts 7.

[0033] A reinforcing support plate 1 9 and a reinforcing support plate 2 10 are fixedly connected between two fixed support plates 24 located on one side of the connecting bracket 1 .

[0034] In this embodiment, the connecting bracket 1 is installed and connected to the rear of the car. The user can load and fix the bicycle on the trailer frame through the fixing support plate 24 and the fastening belt 7, and the wheel of the bicycle is placed on the fixing support plate 24.

[0035] First, reinforcing support plate 1 9 and reinforcing support plate 2 10 are respectively connected to the two end portions of the fixed support plate 24, so that the two opposite fixed support plates 24 on one side of the connecting bracket 1 have higher stability, and the two opposite fixed support plates 24 are connected into a whole, thereby enhancing the load-bearing reliability of the fixed support plates 24, and will further strengthen the tight connection of the trailer frame, thereby improving the support reliability of the trailer frame.

[0036] In addition, the reinforcing support plate 1 9 and the reinforcing support plate 2 10 can be flexibly assembled on the trailer frame by means of threaded installation and removal of connecting screws, and the assembly structure is simple and convenient for users to operate.

[0037] Embodiment 2, based on the above embodiment:

[0038] See also Figures 1 to 10 A latch plate 15 is fixedly connected to the interior of one side of the lower bracket 2, and a latch rod 16 is inserted into the interior of the latch plate 15. An oblique connecting plate 17 is penetrated and connected to the end of the oblique connecting plate 17 away from the end of the connecting bracket 1, and a baffle 18 is fixedly connected to the end of the oblique connecting plate 17 away from the connecting bracket 1. A spring 19 is welded between the oblique connecting plate 17 and the latch plate 15, and the spring 19 is wound around the outside of the latch rod 16. A positioning pin 20 is fixedly connected to the end of the latch rod 16 away from the latch plate 15. A group of symmetrical locking holes 21 are opened on the two side surfaces of the lower bracket 2 and are slidably inserted and locked by the positioning pin 20. A combination hole is opened on the upper sleeve bracket 3, which has a transverse section 100 and a vertical section 101. A clamping hole 22 for clamping on the upper end surface of the positioning pin 20 is opened on the two side surfaces of the upper sleeve bracket 3. A rotating shaft fixed screw 23 is penetrated and connected to the lower bracket 2 and the upper sleeve bracket 3 on one side close to the baffle 18.

[0039] In this embodiment, the locking structure that can adapt to multiple frames is formed by combining the upper bracket 3 and the lower bracket 2, so that the upper bracket 3 and the lower bracket 2 have the same adaptability to different frames, thereby ensuring the flexible adaptability of the trailer frame.

[0040] Specifically, the trailer frame is installed at the rear of the car. The user first presses the baffle plate 18 downward to rotate the baffle plate 18. Figure 7 , Figure 8 and Fig.10 The baffle plate 18 and the diagonal connecting plate 17 are driven to rotate counterclockwise. During the rotation, a vertical hole is provided on the diagonal connecting plate 17, and the plug rod on the left end of the latch rod 16 is inserted into the vertical hole. Figure 8 As shown, the oblique connecting plate 17 rotating counterclockwise will drive the vertical hole to rotate synchronously, and then press the plug rod through the vertical hole. Since the plug rod has been horizontally limited, it will drive the plug rod to move horizontally to the left. During the movement, the spring will be squeezed and elastic potential energy will be formed. At the same time, as the plug rod moves to the left, it will drive the latch rod 16 and the positioning pin rod 20 to move left synchronously, so that the latch rod 16 enters the vertical section 101 from the horizontal section 100. Since the horizontal section 100 can play a locking role relative to the positioning pin rod 20, the upper bracket 3 and the lower bracket 2 cannot rotate. When the positioning pin rod 20 is at the vertical section 101, the lower bracket 2 can be relative to the upper bracket 3. The sleeve bracket 3 is deflected, and the positioning pin rod 20 will gradually disengage from the combination hole by the vertical section 101, thereby realizing the rotation of the entire component. At this time, the lock between the upper sleeve bracket 3 and the lower bracket 2 can be released through the central frame rod 8 and the rotating shaft fixed screw 23, and the upper sleeve bracket 3 can be rotated away from the lower bracket 2, so as to facilitate the user to open the trunk. When it is necessary to rotate and reset, it is only necessary to rotate the upper sleeve bracket 3 back to its original position. The combination hole of the upper sleeve bracket 3 has a certain bevel, which presses the positioning pin rod 20, thereby giving the latch rod 16 a lateral thrust, and because the latch rod 16 has lateral mobility and elasticity, the latch rod 16 can be re-stuck in the combination hole, thereby realizing quick disassembly and locking.

[0041] See also Figures 1 to 10 A bottom plate 52 is fixedly installed at the bottom of the vertical frame 51 by bolts, a roller 6 is fixedly installed on the bottom surface of the bottom plate 52, and a handle 8 is fixedly connected to the end of the vertical frame 51.

[0042] In this embodiment, after the trailer frame is removed from the vehicle, the trailer frame can be pushed freely and easily by pushing the handle 8 and utilizing the rolling property of the roller 6, without any effort in moving it.

[0043] Embodiment 3, based on the above embodiment:

[0044] Please refer to Fig.11 The handle 8 includes a lower tube portion 81 and an upper rod portion 82, which are slidably connected to each other. A bolt 83 is provided on the side of the lower tube portion 81. After the bolt 83 is rotated, the end of the bolt 83 will press against the outer surface of the upper rod portion 82. A moving part 84 is provided on the outer surface of the upper rod portion 82, and a binding component 85 is installed on the moving part 84.

[0045] In this embodiment, through this vertically sliding form, the upper rod portion 82 can slide vertically, and the lifting length of the handle 8 can be directionally changed, which helps to achieve an efficient and convenient storage effect, and a binding component 85 is installed on the handle 8. The binding component 85 can be a strap or a clamping and locking component, and the middle crossbeam between the two wheels of the bicycle can be locked, so as to further lock the bottom wheel part and the upper crossbeam of the bicycle, so as to ensure the efficient stability of the bicycle during operation, and through the vertically retractable handle 8, the binding component 85 can be moved to a suitable height to adapt to the use of bicycles of different heights.

[0046] An anti-skid pad 86 is installed at the upper end of the upper rod portion 82 , and a notch 87 is formed on the outer surface of the anti-skid pad 86 .

[0047] In this embodiment, the provision of the anti-slip pad 86 can increase the stability of the upper rod 82 when being held, avoiding unstable situations such as slipping from the user's hands when holding it, and the design of the recess 87 can further improve the anti-slip stability of the upper rod 82.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted bicycle trailer, comprising a connecting bracket (1), characterized in that: A lower bracket (2) is fixedly mounted on one side surface of the connecting bracket (1); an upper bracket (3) is rotatably sleeved and firmly mounted on the upper surface of the lower bracket (2); a locking structure is formed between the upper bracket (3) and the lower bracket (2); connecting bracket sleeves (11) are fixedly sleeved on both ends of the upper bracket (3); two vertical frames (51) are fixedly mounted between the two connecting bracket sleeves (11); two supporting frames (5) are hingedly mounted on the surfaces of the two vertical frames (51); fixed support plates (24) are fixedly mounted on the surfaces of the four supporting frames (5); and fastening belts (7) are provided on the surfaces of the fixed support plates (24); A reinforcing support plate 1 (9) and a reinforcing support plate 2 (10) are fixedly connected between the two fixed support plates (24) located on one side of the connecting bracket (1).

2. The vehicle-mounted bicycle trailer according to claim 1, characterized in that: The locking structure comprises a latch plate (15) fixedly connected to the inside of one side of the lower bracket (2), a latch rod (16) is inserted into the inside of the latch plate (15), a group of symmetrical oblique connecting plates (17) are connected through one end of the latch rod (16) close to the latch plate (15), a baffle (18) is fixedly connected to the end of the oblique connecting plate (17) away from the connecting bracket (1), a spring (19) is welded between the oblique connecting plate (17) and the latch plate (15), and the spring (19) is wound around the The outside of the latch rod (16) is fixedly connected to a positioning pin rod (20) at one end of the latch rod (16) away from the latch plate (15), and the two side surfaces of the lower bracket (2) are provided with a group of symmetrical locking holes (21) which are slidably inserted and locked by the positioning pin rod (20), and the upper sleeve bracket (3) is provided with a combination hole, which has a transverse section (100) and a vertical section (101), and the two side surfaces of the upper sleeve bracket (3) are provided with a clamping hole (22) for clamping on the upper end surface of the positioning pin rod (20).

3. The vehicle-mounted bicycle trailer according to claim 2, characterized in that: A rotating shaft fixed screw (23) is connected through one side of the lower bracket (2) and the upper sleeve bracket (3) close to the baffle (18).

4. The vehicle-mounted bicycle trailer according to claim 1, characterized in that: A bottom plate (52) is fixedly mounted on the bottom of the vertical frame (51) by means of bolts, and a roller (6) is fixedly mounted on the bottom surface of the bottom plate (52).

5. The vehicle-mounted bicycle trailer according to claim 1, characterized in that: A handle (8) is fixedly connected to the end of the vertical frame (51).

6. The vehicle-mounted bicycle trailer according to claim 5, characterized in that: The handle (8) comprises: A lower cylinder (81) and an upper rod (82), wherein the lower cylinder (81) and the upper rod (82) are slidably connected, and a bolt (83) is provided on the side surface of the lower cylinder (81), and the end of the bolt (83) presses against the outer surface of the upper rod (82) after rotation.

7. The vehicle-mounted bicycle trailer according to claim 6, characterized in that: A moving member (84) is provided on the outer surface of the upper rod portion (82), and a binding member (85) is mounted on the moving member (84).

8. The vehicle-mounted bicycle trailer according to claim 6, characterized in that: An anti-skid pad (86) is installed at the upper end of the upper rod portion (82), and a notch (87) is provided on the outer surface of the anti-skid pad (86).

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