A power device for manually lifting bicycle luggage rack

Abstract

The present invention provides a power device for a hand-cranked lifting bicycle luggage rack, comprising a frame body, a connecting tube symmetrically mounted at the rear end of the frame body, a moving tube mounted at the rear end of the connecting tube, a connecting piece sleeved between the connecting tube and the moving tube, a transmission device movably mounted on the outer side of the moving tube below the connecting piece, the transmission device comprising a worm, a gear meshing with the worm, and a rack on the inner surface of the moving tube, a rotating shaft connected to the upper end of the gear, a threaded column movably mounted on the surface of the rack outside the rotating shaft, a transmission rod arranged at the rear end of the worm, and a driving device mounted at the front end of the worm. The power device for a hand-cranked lifting bicycle luggage rack described in the present invention can lift the frame body without manual handling, which is labor-saving and prevents accidents during handling, making it safer to use.

Description

Technical Field

[0001] The invention relates to the technical field of bicycle luggage racks, and in particular to a power device for manually lifting a bicycle luggage rack. Background Art

[0002] A bicycle luggage rack is a support frame or component installed at the rear of the car body to safely and conveniently fix luggage. It is generally used in two-box station wagons, SUVs, MPVs and other models.

[0003] Existing bicycle luggage racks are usually installed at fixed mounting points and can only be installed at a fixed height, which is a certain distance from the ground. They cannot be moved up and down. If users want to put bicycles on bicycle luggage racks, they usually have to lift the bicycles to the corresponding height and put them on and fix them. This is time-consuming and labor-intensive, and there are certain risks. Moreover, if it is used by women, they will face the embarrassing situation of not being able to move the bicycles and put them on. In order to solve the above problems, we propose a power device for a hand-cranked lifting bicycle luggage rack. Summary of the invention

[0004] The purpose of the present invention is to provide a power device for a hand-cranked lifting bicycle luggage rack, which can lift the frame body without manual handling, saves labor, prevents accidents during the handling process, and is safer to use.

[0005] The embodiment of the present invention is achieved as follows:

[0006] An embodiment of the present invention provides a power device for a hand-cranked lifting bicycle luggage rack, comprising a frame body, a connecting tube is symmetrically installed at the rear end of the frame body, a moving tube is installed at the rear end of the connecting tube, a connecting piece is sleeved between the connecting tube and the moving tube, a transmission device is movably installed on the outer side of the moving tube and located below the connecting piece, the transmission device comprises a worm, a gear meshing with the worm, and a rack on the inner surface of the moving tube, the upper end of the gear is connected to a rotating shaft, a threaded column is movably installed on the surface of the outer rack of the rotating shaft, a transmission rod is provided at the rear end of the worm, and a driving device is installed at the front end of the worm, the driving device comprises an inner four-corner round tube, a four-corner fixing rod clamped with the inner four-corner round tube, and a handle is provided at the front end of the inner four-corner round tube.

[0007] Optionally, the connecting member includes a large mounting code, a small mounting code is installed at the front end of the large mounting code, a locking buckle is arranged between the large mounting code and the small mounting code, the connecting tube slides through the small mounting code, and the movable tube slides through the large mounting code, and one end of the rear end of the large mounting code is connected to a fixing groove, and the fixing groove is installed on the surface of the vehicle body by through screws.

[0008] Optionally, a slide groove is provided on the surface of the movable tube, and a slider is installed on the inner side of the slide groove at the rear end of the connecting tube. The cross-section of the slider is T-shaped, and the size of the slider is adapted to the slide groove. Grooves are provided directly below the slider on the surfaces opposite to the large installation code and the small installation code.

[0009] Optionally, the lock includes a base, a sleeve, and a pressing plate rotatably mounted on the base, the sleeve being fixed to the surface of the small mounting code by screws, and the base being welded to the surface of the large mounting code, a connecting shaft being installed between the pressing plate and the base, the pressing plate being rotatably connected to the base via the connecting shaft, a locking ring being provided on the outer side of the sleeve at one end of the pressing plate, the front end of the locking ring being clamped on the surface of the sleeve, and the rear end of the locking ring being rotatably connected to the pressing plate.

[0010] Optionally, the rotating shaft and the gear are fixedly connected, the outer surface of the threaded column is rotationally connected to the surface of the rack, the transmission rod is welded to the rear end of the worm, and the movable tube is slidably connected to the threaded column through the rack.

[0011] Optionally, the outer sides of the worm gear and the threaded column are clamped with a first shell and a second shell, the transmission rod passes through the interior of the first shell and the second shell, a sealing cover is embedded in the outer side of the top gear at the connection between the first shell and the second shell, the moving tube is slidingly connected to the first shell and the second shell, the first shell and the second shell are fixed by screws, and the second shell is installed on the surface of the vehicle body by through screws, a locking knob is movably installed at the front end of the first shell, and the rear end of the locking knob passes through the first shell and is movably connected to the surface of the moving tube.

[0012] Optionally, the four-corner fixing rods are fixed to the front end of the worm, the size of the four-corner fixing rods is adapted to the inner surface size of the inner four-corner circular tube, and the outer surface of the four-corner fixing rods is movably connected to the inner surface of the inner four-corner circular tube.

[0013] Optionally, a reinforcement mechanism is installed on the top of the connecting tube and the movable tube, and the reinforcement mechanism includes a fixing sleeve. There are two fixing sleeves, and the fixing sleeves are sleeved on the top of the connecting tube and the movable tube. A connecting plate is welded at the rear end corner of the fixing sleeve, and the connecting plate is L-shaped and made of aluminum.

[0014] The beneficial effects of the embodiments of the present invention include: the embodiments of the present invention provide a power device for a hand-cranked lifting bicycle luggage rack, wherein a connecting tube and a movable tube are fixed by a connecting piece, an inner four-corner round tube is inserted on the outer side of the four-corner fixing rod, and the four-corner fixing rod is rotated by a handle to drive the worm to rotate, and the worm can rotate the gear, the rotating shaft, and the threaded column under the action of friction. During the rotation of the threaded column, the friction with the rack causes it to move up and down, which can drive the movable tube to slide. Since the connecting tube and the movable tube are fixed by a connecting piece, the purpose of driving the connecting tube and the frame body to move can be achieved, and the frame body can be lifted without manual transportation, which is more labor-saving and prevents accidents during transportation, and is safer to use. In addition, the inner four-corner round tube can be directly pulled out for disassembly after use, which reduces the occupied space and is easy to carry. The effect of use is better than that of the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of a power device of a hand-cranked lifting bicycle luggage rack of the present invention;

[0017] Figure 2 It is a structural schematic diagram of a connecting member of a power device of a hand-cranked lifting bicycle luggage rack of the present invention;

[0018] Figure 3 It is a structural schematic diagram of a lock buckle of a hand-cranked lifting bicycle luggage rack of the present invention;

[0019] Figure 4 An exploded view of a transmission device of a hand-cranked lifting bicycle luggage rack of the present invention;

[0020] Figure 5 An exploded view of a power device of a hand-cranked lifting bicycle luggage rack of the present invention;

[0021] Figure 6 It is a partial enlarged view of a reinforcement mechanism of a hand-cranked lifting bicycle luggage rack of the present invention.

[0022] Icons: 1. Frame body; 2. Connecting tube; 3. Moving tube; 4. Connecting piece; 41. Large mounting code; 42. Small mounting code; 43. Fixing groove; 44. Locking buckle; 441. Base; 442. Pressing plate; 443. Connecting shaft; 444. Locking ring; 445. Cardan; 45. Slider; 46. Slide groove; 47. Slot; 5. Reinforcement mechanism; 51. Fixing sleeve; 52. Connecting plate; 6. Transmission device; 61. Worm; 62. Gear; 63. Rotating shaft; 64. Threaded column; 65. Sealing cover; 66. Rack; 67. First shell; 68. Second shell; 69. Transmission rod; 7. Driving device; 71. Inner four-corner round tube; 72. Handle; 73. Four-corner fixing rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The embodiment of the present invention provides a power device for manually lifting a bicycle luggage rack, such as Figure 1 As shown, it includes a frame body 1, a connecting tube 2 is symmetrically installed at the rear end of the frame body 1, a moving tube 3 is installed at the rear end of the connecting tube 2, a connecting piece 4 is sleeved between the connecting tube 2 and the moving tube 3, and a transmission device 6 is movably installed on the outer side of the moving tube 3 below the connecting piece 4. The transmission device 6 includes a worm 61, a gear 62 meshing with the worm 61, and a rack 66 on the inner surface of the moving tube 3. The upper end of the gear 62 is connected to a rotating shaft 63, and a threaded column 64 is movably installed on the surface of the outer rack 66 of the rotating shaft 63. A transmission rod 69 is provided at the rear end of the worm 61, and a driving device 7 is installed at the front end of the worm 61. The driving device 7 includes an inner four-corner round tube 71, a four-corner fixing rod 73 clamped with the inner four-corner round tube 71, and a handle 72 is provided at the front end of the inner four-corner round tube 71.

[0028] like Figure 1 As shown, the connecting tube 2 and the moving tube 3 are fixed by the connecting member 4, and the connecting member 4 and the transmission device 6 are installed on the vehicle body by through-screws. The driving device 7 rotates the transmission device 6 to drive the moving tube 3 to move up and down, thereby lifting or lowering the frame body 1.

[0029] In this embodiment, Figure 2 As shown, the connecting member 4 includes a large mounting code 41, a small mounting code 42 is installed at the front end of the large mounting code 41, a lock buckle 44 is arranged between the large mounting code 41 and the small mounting code 42, the connecting tube 2 slides through the small mounting code 42, and the movable tube 3 slides through the large mounting code 41, and one end of the rear end of the large mounting code 41 is connected to the fixing groove 43, and the fixing groove 43 is installed on the surface of the vehicle body by means of through screws.

[0030] A slide groove 46 is provided on the surface of the movable tube 3, and a slider 45 is installed on the inner side of the slide groove 46 at the rear end of the connecting tube 2. The cross section of the slider 45 is T-shaped, and the size of the slider 45 is adapted to the slide groove 46. A groove 47 is provided directly below the slider 45 on the surface opposite to the large installation code 41 and the small installation code 42.

[0031] like Figure 2As shown, the connecting tube 2 and the moving tube 3 are respectively inserted into the small mounting code 42 and the large mounting code 41, and the slider 45 can pass through the large mounting code 41 and the small mounting code 42 through the slot 47, and the rear end of the slider 45 can be stuck on the surface of the moving tube 3 through the slide groove 46, so that the slider 45 can be fixed between the connecting tube 2 and the moving tube 3, so that the connecting tube 2 and the moving tube 3 can be connected into a whole, and the connecting tube 2 can move up and down with the moving tube 3.

[0032] In this embodiment, Figure 3 As shown, the lock buckle 44 includes a base 441, a sleeve 445, and a pressing plate 442 rotatably installed on the base 441. The sleeve 445 is fixed to the surface of the small mounting code 42 by screws, and the base 441 is welded to the surface of the large mounting code 41. A connecting shaft 443 is installed between the pressing plate 442 and the base 441. The pressing plate 442 is rotatably connected to the base 441 through the connecting shaft 443. A locking ring 444 is provided on the outer side of the sleeve 445 at one end of the pressing plate 442. The front end of the locking ring 444 is clamped on the surface of the sleeve 445, and the rear end of the locking ring 444 is rotatably connected to the pressing plate 442.

[0033] like Figure 3 As shown, by turning the pressing plate 442 to make it flip under the action of the connecting shaft 443, the locking ring 444 is moved forward and stuck on the surface of the sleeve 445, and then the pressing plate 442 is pressed to make it stick to the surface of the base 441, so that the locking ring 444 and the sleeve 445 can be tightened and fixed, and the small installation code 42 can be fixed on the front end of the large installation code 41, which can reinforce the connecting tube 2 and the movable tube 3.

[0034] In this embodiment, Figure 4 As shown, the rotating shaft 63 is fixedly connected to the gear 62, the outer surface of the threaded column 64 is rotationally connected to the surface of the rack 66, the transmission rod 69 is welded to the rear end of the worm 61, and the moving tube 3 is slidingly connected to the threaded column 64 through the rack 66.

[0035] The first shell 67 and the second shell 68 are clamped on the outer sides of the worm 61 and the threaded column 64, the transmission rod 69 passes through the inside of the first shell 67 and the second shell 68, and the sealing cover 65 is embedded on the outer side of the top gear 62 at the connection between the first shell 67 and the second shell 68. The moving tube 3 is slidably connected with the first shell 67 and the second shell 68, the first shell 67 and the second shell 68 are fixed by screws, and the second shell 68 is installed on the surface of the vehicle body by through screws, and a locking knob is movably installed at the front end of the first shell 67, and the rear end of the locking knob passes through the first shell 67 and is movably connected to the surface of the moving tube 3.

[0036] like Figure 4As shown, the worm 61 is rotated by the driving device 7, and the worm 61 can rotate the gear 62, the rotating shaft 63, and the threaded column 64 under the action of friction. During the rotation process, the threaded column 64 rubs against the rack 66 to move up and down, which can drive the moving tube 3 to slide. Since the connecting tube 2 and the moving tube 3 are fixed by the connecting piece 4, the purpose of driving the connecting tube 2 and the frame body 1 to move can be achieved, and the frame body 1 can be lifted without manual handling, which is more labor-saving. The internal components thereof can be protected by the sealing cover 65, the first shell 67, and the second shell 68. The moving tube 3 can be locked by the locking knob after the position adjustment is completed, and the moving tube 3 is not easy to shake.

[0037] In this embodiment, Figure 5 As shown, the four-corner fixing rod 73 is fixed to the front end of the worm 61 , the size of the four-corner fixing rod 73 is adapted to the inner surface size of the inner four-corner circular tube 71 , and the outer surface of the four-corner fixing rod 73 is movably connected to the inner surface of the inner four-corner circular tube 71 .

[0038] like Figure 5 As shown, the inner four-corner round tube 71 is inserted into the outer side of the four-corner fixing rod 73, and the four-corner fixing rod 73 is rotated by the handle 72 to drive the transmission device 6 to work. After use, the inner four-corner round tube 71 can be directly pulled out for disassembly, which reduces the occupied space and is easy to carry.

[0039] In this embodiment, Figure 6 As shown, a reinforcement mechanism 5 is installed on the top of the connecting tube 2 and the movable tube 3. The reinforcement mechanism 5 includes a fixing sleeve 51. There are two fixing sleeves 51. The fixing sleeves 51 are sleeved on the top of the connecting tube 2 and the movable tube 3. A connecting plate 52 is welded at the rear end corner of the fixing sleeve 51. The connecting plate 52 is L-shaped and made of aluminum.

[0040] like Figure 6 As shown, the fixing sleeve 51 is put on the upper ends of the connecting pipe 2 and the moving pipe 3, and then the connecting plate 52 is fixed to the fixing sleeve 51, so that the tops of the connecting pipe 2 and the moving pipe 3 can be reinforced.

[0041] It should be noted that the present invention is a power device for manually lifting a bicycle luggage rack. The user inserts the connecting tube 2 and the moving tube 3 into the small mounting code 42 and the large mounting code 41 respectively. The slider 45 can pass through the large mounting code 41 and the small mounting code 42 through the slot 47. The rear end of the slider 45 can be stuck on the surface of the moving tube 3 through the slide groove 46, and the slider 45 can be fixed between the connecting tube 2 and the moving tube 3, so that the connecting tube 2 and the moving tube 3 can be connected into a whole. By pulling the pressing plate 442, the slider 45 can be moved. Under the action of the connecting shaft 443, the locking ring 444 is flipped, so that the locking ring 444 moves forward and is stuck on the surface of the clamping sleeve 445, and then the pressing plate 442 is pressed to make it stick to the surface of the base 441, so that the locking ring 444 and the clamping sleeve 445 can be tightened and fixed, and the small installation code 42 can be fixed to the front end of the large installation code 41, which can strengthen the connecting pipe 2 and the moving pipe 3. The fixing groove 43 and the second shell 68 are installed on the vehicle body by screwing, so that the installation of the driving luggage rack can be completed, and the connecting pipe 2 The connection between the connecting tube 2 and the moving tube 3 is detachable, and the operation is convenient. The fixing sleeve 51 is sleeved on the upper ends of the connecting tube 2 and the moving tube 3, and the connecting plate 52 is fixed to the fixing sleeve 51, and the inner four-corner round tube 71 is inserted into the outer side of the four-corner fixing rod 73. The four-corner fixing rod 73 is rotated by the handle 72 to drive the worm 61 to rotate, and the worm 61 can rotate the gear 62, the rotating shaft 63, and the threaded column 64 under the action of friction. During the rotation of the threaded column 64, the friction with the rack 66 causes it to move up and down, which can drive the moving tube 3 to slide, and the force can be transmitted through the transmission rod 69 so that the two moving tubes 3 can move at the same time. Since the connecting tube 2 and the moving tube 3 are fixed by the connecting piece 4, the purpose of driving the connecting tube 2 and the frame body 1 to move up and down can be achieved, and the frame body 1 can be lifted without manual transportation, which is labor-saving and prevents accidents during transportation. The internal components can be protected by the sealing cover 65, the first shell 67, and the second shell 68, and the moving tube 3 can be locked after the position adjustment is completed by the locking knob.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. 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 power device for manually lifting a bicycle luggage rack, comprising a frame body (1), characterized in that: A connecting tube (2) is symmetrically mounted at the rear end of the frame body (1), a moving tube (3) is mounted at the rear end of the connecting tube (2), a connecting piece (4) is sleeved between the connecting tube (2) and the moving tube (3), a transmission device (6) is movably mounted on the outer side of the moving tube (3) below the connecting piece (4), the transmission device (6) comprises a worm (61), a gear (62) meshing with the worm (61), and a rack (66) on the inner surface of the moving tube (3), the upper end of the gear (62) is connected to a rotating shaft (63), a threaded column (64) is movably mounted on the surface of the rack (66) on the outer side of the rotating shaft (63), a transmission rod (69) is arranged at the rear end of the worm (61), and a driving device (7) is mounted at the front end of the worm (61), the driving device (7) comprises an inner four-axis gear (61) and an outer gear (62) meshing with the worm (61), and a threaded column (64) is movably mounted on the surface of the outer rack (66) of the rotating shaft (63), a transmission rod (69) is arranged at the rear end of the worm (61), and a driving device (7) is mounted at the front end of the worm (61), the driving device (7) comprises an inner four-axis gear (61) and an outer gear (62) meshing with the worm (61), and a threaded column (64) is movably mounted on the outer gear (66) of the rotating shaft (63), A corner round tube (71), a four-corner fixing rod (73) clamped with the inner four-corner round tube (71), the front end of the inner four-corner round tube (71) is provided with a handle (72); the connecting member (4) comprises a large mounting code (41), the front end of the large mounting code (41) is provided with a small mounting code (42), a lock buckle (44) is provided between the large mounting code (41) and the small mounting code (42), the connecting tube (2) slides through the small mounting code (42), and the moving tube (3) slides through the large mounting code (41), one end of the rear end of the large mounting code (41) is connected to a fixing groove (43), and the fixing groove (43) is installed on the surface of the vehicle body by means of through-screws; a sliding groove (46) is provided on the surface of the moving tube (3), and a slider (45) is installed on the inner side of the sliding groove (46) at the rear end of the connecting tube (2); The lock buckle (44) comprises a base (441), a clamping sleeve (445), and a pressing plate (442) rotatably mounted on the base (441); the clamping sleeve (445) is fixed to the surface of the small mounting code (42) by screws, and the base (441) is welded to the surface of the large mounting code (41); a connecting shaft (443) is installed between the pressing plate (442) and the base (441); the pressing plate (442) is rotatably connected to the base (441) via the connecting shaft (443); a locking ring (444) is arranged on the outer side of the clamping sleeve (445) at one end of the pressing plate (442); the front end of the locking ring (444) is clamped on the surface of the clamping sleeve (445), and the rear end of the locking ring (444) is rotatably connected to the pressing plate (442).

2. The power device of the hand-cranked lifting bicycle luggage rack according to claim 1, characterized in that: The cross section of the slider (45) is T-shaped, and the size of the slider (45) is adapted to the size of the slide groove (46). A groove (47) is provided directly below the slider (45) on the surface where the large mounting code (41) and the small mounting code (42) are opposite.

3. The power device of the hand-cranked lifting bicycle luggage rack according to claim 1, characterized in that: The rotating shaft (63) and the gear (62) are fixedly connected, the outer surface of the threaded column (64) is rotatably connected to the surface of the rack (66), the transmission rod (69) is welded to the rear end of the worm (61), and the moving tube (3) is slidably connected to the threaded column (64) via the rack (66).

4. The power device for a hand-cranked lifting bicycle luggage rack according to claim 1, characterized in that: The outer sides of the worm (61) and the threaded column (64) are clamped with a first housing (67) and a second housing (68); the transmission rod (69) passes through the interior of the first housing (67) and the second housing (68); a sealing cover (65) is embedded on the outer side of the top gear (62) at the connection between the first housing (67) and the second housing (68); the moving tube (3) is slidably connected to the first housing (67) and the second housing (68); the first housing (67) and the second housing (68) are fixed by screws, and the second housing (68) is installed on the surface of the vehicle body by through-screws; a locking knob is movably installed at the front end of the first housing (67); the rear end of the locking knob passes through the first housing (67) and is movably connected to the surface of the moving tube (3).

5. The power device for a hand-cranked lifting bicycle luggage rack according to claim 1, characterized in that: The four-corner fixing rod (73) is fixed to the front end of the worm (61), the size of the four-corner fixing rod (73) is matched with the inner surface size of the inner four-corner circular tube (71), and the outer surface of the four-corner fixing rod (73) is movably connected with the inner surface of the inner four-corner circular tube (71).

6. The power device for a hand-cranked lifting bicycle luggage rack according to claim 1, characterized in that: A reinforcement mechanism (5) is installed on the top of the connecting tube (2) and the moving tube (3), and the reinforcement mechanism (5) comprises a fixing sleeve (51). The number of the fixing sleeves (51) is two, and the fixing sleeves (51) are sleeved on the top of the connecting tube (2) and the moving tube (3). A connecting plate (52) is welded at the rear end corner of the fixing sleeve (51), and the connecting plate (52) is L-shaped and made of aluminum.

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