TWM654691U - Height-adjustable bicycle repair stand - Google Patents

Abstract

A bicycle repair stand with adjustable height includes a lower frame, a first rotating group, a second rotating group and an upper frame. The lower frame has a first hinge and a second hinge. The first rotating group has a third hinge and a first gear. The third hinge is hinged to the first hinge. The first gear rotates with the third hinge. The second rotating group has a fourth hinge and a second gear. The fourth hinge is hinged to the second hinge. The second gear is rotated by the first gear. The first gear and the second gear are axially orthogonal. The upper frame has a gear row. The gear row is engaged with the second gear and is rotated by the second gear to drive the upper frame to rise and fall relative to the lower frame. By making the gear axes orthogonal, the gear rows are less likely to cause the gears to rotate, thereby simplifying the structure and preventing the structure from falling due to load, thus solving the problem of the known structure being complex or prone to failure.

Description

Height-adjustable bicycle maintenance stand

This invention is related to a bicycle maintenance stand, and in particular to a bicycle maintenance stand with adjustable height.

Existing bicycle repair stands, such as the patent of the applicant TWM646306, are provided with a lifting device to facilitate users to adjust the height of the support rod. The lifting device has a variety of anti-rotation element structures, which can prevent the danger of rapid falling when a heavy bicycle (such as an electric assisted bicycle) is clamped in the clamp. However, the structure of the bicycle repair stand is relatively complex and may also be prone to failure, so there is room for simplification and improvement.

In view of the above-mentioned shortcomings, the purpose of this invention is to provide a bicycle repair rack that can prevent the bicycle from falling due to a load with a simple structure.

To achieve the above-mentioned purpose, the height-adjustable bicycle repair stand of the invention comprises a lower frame, a first rotating group, a second rotating group and an upper frame, wherein the lower frame has a first pivot and a second pivot; the first rotating group has a third pivot and a first gear, the third pivot is pivotally connected to the first pivot, and the first gear rotates with the third pivot; the second rotating group has a A fourth hinge, a second gear and a third gear, the fourth hinge is hinged to the second hinge, the second gear is rotated by the first gear, and the third gear rotates coaxially and synchronously with the second gear; wherein the first gear is axially orthogonal to the second gear; the upper frame has a gear row, the gear row is engaged with the third gear and is rotated by the third gear to drive the upper frame to rise and fall relative to the lower frame.

By orthogonally intersecting the first gear and the second gear, the gear row is less likely to cause the gears to rotate, thereby achieving the effect of simplifying the structure and preventing the gear from falling due to load.

Preferably, the first rotating assembly has a first rotating member, and the third pivot and the first gear are located on the first rotating member.

Preferably, the second rotating assembly has a second rotating member, and the fourth pivot and the second gear are located on the second rotating member.

Preferably, the second rotating assembly has a third rotating member installed on the second rotating member, and the third gear is located on the third rotating member.

Preferably, the lower frame includes a first wheel seat and a second wheel seat combined, and the first rotating group and the second rotating group are arranged between the first wheel seat and the second wheel seat.

Preferably, the second hub is formed by the first wheel seat and the second wheel seat.

Preferably, the lower frame has a first supporting portion, and a set is provided between the first gear and the first supporting portion.

Preferably, the lower frame has a second supporting portion, and a set is provided between the third gear and the second supporting portion.

Preferably, the fourth pivot is a pivot, and the third gear has a set of fixing holes installed on the fourth pivot.

To achieve the above-mentioned purpose, the height-adjustable bicycle repair stand of the present invention includes a lower frame, a first rotating group, a second rotating group and an upper frame, wherein the lower frame has a first hinge and a second hinge; the first rotating group has a third hinge and a first gear, the third hinge is pivoted to the first hinge, and the first gear rotates with the third hinge; the second rotating group has a fourth hinge and a second gear, the fourth hinge is pivoted to the second hinge, and the second gear is rotated by the first gear; wherein the first gear is axially orthogonal to the second gear; the upper frame has a gear row, the gear row is engaged with the second gear and is rotated by the second gear to drive the upper frame to rise and fall relative to the lower frame.

By orthogonally intersecting the first gear and the second gear, the gear row is less likely to cause the gears to rotate, thereby achieving the effect of simplifying the structure and preventing the gear from falling due to load.

Preferably, the first rotating assembly has a first rotating member, and the third pivot and the first gear are located on the first rotating member.

Preferably, the second rotating assembly has a second rotating member, and the fourth pivot and the second gear are located on the second rotating member.

Preferably, the lower frame includes a first wheel seat and a second wheel seat combined, and the first rotating group and the second rotating group are arranged between the first wheel seat and the second wheel seat.

Preferably, the first pivot point is on the first wheel seat, and the second pivot point is on the first wheel seat.

Preferably, the lower frame has a first supporting portion, and a set is provided between the first gear and the first supporting portion.

Preferably, the lower frame has a second supporting portion, and a set is provided between the second gear and the second supporting portion.

Preferably, the second hinge and the fourth hinge are connected by a hinge.

The detailed structure, features, assembly or use of the bicycle repair rack provided by this invention will be described in the detailed description of the implementation method that follows. However, those with ordinary knowledge in this field should understand that such detailed descriptions and specific embodiments listed for implementing this invention are only used to illustrate this invention and are not used to limit the scope of the patent application of this invention.

First of all, it should be noted that the technical features provided by this invention are not limited to the specific structures, uses and applications described in the implementation method. The terms used in the description are all exemplary descriptive terms that can be understood by ordinary knowledgeable people in the relevant technical fields. The directional descriptive terms such as "front, top, bottom, back, left, right, top, bottom, inside, and outside" mentioned in this manual are only exemplary descriptive terms based on the normal use direction, and are not intended to limit the scope of the claims.

Please refer to Figures 1 to 7, a preferred embodiment of the bicycle repair rack of the present invention includes a lower frame 1, a first rotating group 4, a second rotating group 5 and an upper frame 7.

The lower frame 1 includes a frame body 10 , a first wheel seat 20 and a second wheel seat 30 .

The frame 10 is provided for supporting on the ground.

The first wheel seat 20 has a lower hole 21, an upper hole 22, a first pivot P1, two second pivots P2, a first support B1 and two second support B2. The lower hole 21 is connected to the frame 10, the upper hole 22 is connected to the lower hole 21, the first pivot P1 is a pivot in this example, the two second pivots P2 are half pivots in this example, the first pivot P1 is perpendicular to the two second pivots P2, the first support B1 is located around the first pivot P1, and the two second support B2 are located around each second pivot P2.

The second wheel seat 30 has a first pivot P1 and two second pivots P2. The first pivot P1 is a pivot hole in this example, and the two second pivots P2 are half pivot holes in this example. The first pivot P1 is coaxial with the first pivot P1 of the first wheel seat 20, and the second pivots P2 are coaxial with the second pivots P2 of the first wheel seat 20 to form a pivot hole together.

That is, in this embodiment, the second pivot P2 is formed by the first wheel seat 20 and the second wheel seat 30, but the present invention is not limited thereto.

The first rotating assembly 4 has a first rotating member 40 .

The first rotating member 40 is rotatably disposed on the frame 10 and pivotally connected to the first pivot P1. The first rotating member 40 has two third pivots P3, a first gear 41 and a driving portion 42. The two third pivots P3 are pivots connected to the two axial ends of the first gear 41 in this example, and the two third pivots P3 pivotally connect the first pivot P1 of the first wheel seat 20 and the first pivot P1 of the second wheel seat 30 respectively. The first gear 41 is a crown gear. The driving portion 42 can be used by a tool to rotate the first rotating member 40.

A set W is disposed between the first gear 41 and the first supporting portion B1.

The second rotating assembly 5 has a second rotating member 50 and a third rotating member 60. The second rotating assembly 5 is rotatably disposed on the frame 10 and pivotally connected to the second pivot P2. The first rotating assembly 4 drives the second rotating assembly 5 to rotate.

The second rotating member 50 has a fourth pivot P4 and a second gear 51. The fourth pivot P4 is pivotally connected to one axial end of the second gear 51 in this example, and the fourth pivot P4 is pivotally connected to the two second pivots P2 of the first wheel seat 20 and the two second pivots P2 of the second wheel seat 30. The second gear 51 is a crown gear that engages with the first gear 41.

The third rotating member 60 has a third gear 61 which is fixed to the fourth pivot P4 through a set of fixing holes 62 and rotates coaxially with the second gear 51. The third gear 61 is a helical gear.

In this example, the fourth pivot P4 is provided with two sets of components W, one of which is located between the third gear 61 and one of the second supporting parts B2, and the other of which is located between the third gear 61 and another of the second supporting parts B2 and is pivotally connected to one of the second pivots P2.

The upper frame 7 has a lifting rod 70 and a vehicle-mounted assembly 80 .

The lifting rod 70 is axially movable and inserted into the lower sleeve hole 21 and the upper sleeve hole 22 of the first wheel seat 20. The lifting rod 70 has a rod 71 and a plurality of gear blocks 72 continuously assembled on the rod 71. The plurality of gear blocks 72 form a gear row 73. The gear row 73 is engaged with the third gear 61. The gear row 73 is rotated by the third gear 61 to drive the upper frame 7 to rise and fall relative to the lower frame 1.

The vehicle-mounted assembly 80 is disposed on the lifting rod 70 for carrying a bicycle.

The above is the component structure of the bicycle repair rack of the invention. The following will further introduce the usage of the bicycle repair rack of the invention. The first rotating group 4 is rotated to rotate the first gear 41 of the second rotating group 5, and the third gear 61 is synchronously rotated and linked with the second gear 51. The third gear 61 rotates to drive the gear row 73 of the lifting rod 70 to move up and down. The gear row 73 moves up and down to make the upper rack 7 rise and fall.

By making the first gear 41 and the second gear 51 axially orthogonal, the gear row 73 is not likely to reversely drive the first gear 41, the second gear 51 and the third gear 61 to rotate, thereby achieving the effect of simplifying the structure and preventing improper lowering due to load. The third gear 61 being a spiral gear can further enhance this effect.

Please refer to Figures 8 to 13, another preferred embodiment of the bicycle repair rack of the present invention includes a lower frame 1, a first rotating group 4, a second rotating group 5 and an upper frame 7.

The lower frame 1 includes a frame body 10 , a first wheel seat 20 and a second wheel seat 30 .

The frame 10 is provided for supporting on the ground.

The first wheel seat 20 has a lower hole 21, an upper hole 22, a first pivot P1, two second pivots P2, a first support B1 and two second support B2. The lower hole 21 is connected to the frame 10, the upper hole 22 is connected to the lower hole 21, the first pivot P1 is a pivot in this example, the two second pivots P2 are pivot holes in this example, and the two second support B2 are located at the outer periphery of each second pivot P2.

The second wheel seat 30 has a first pivot P1 and a first support B1, and the first pivot P1 is coaxial with the first pivot P1 of the first wheel seat 20. The first pivot P1 of the second wheel seat 30 is a hole in this example, and although the first rotating assembly 4 is not pivoted in this example, it can also be pivoted.

The first rotating assembly 4 has a first rotating member 40 .

The first rotating member 40 is rotatably disposed on the frame 10 and pivotally connected to the first pivot P1. The first rotating member 40 has a third pivot P3, a first gear 41 and a driving portion 42. The third pivot P3 pivotally connects to the first pivot P1 of the first wheel seat 20. The first gear 41 is a spiral gear. One side of the first gear 41 can be mounted or not mounted on the first supporting portion B1 of the first wheel seat 20. Alternatively, a set W can be installed between the first gear 41 and the first supporting portion B1. The driving portion 42 can be used by a tool to rotate the first rotating member 40.

The second rotating assembly 5 is rotatably disposed on the frame 10 and pivotally connected to the second pivot P2. The first rotating assembly 4 drives the second rotating assembly 5 to rotate. The second rotating assembly 5 has a second rotating member 50.

The second rotating member 50 has a fourth pivot P4 and a second gear 51. The fourth pivot P4 is pivotally connected to the second pivot P2 of the first wheel seat 20 by a pivot S1, that is, the second pivot P2 of the lower frame 1 and the fourth pivot P4 of the second rotating assembly 5 are pivotally connected by a pivot S1. The second gear 51 rotates with the fourth pivot P4, and the second gear 51 is rotated by the first gear 41. The two sides of the second gear 51 can be reliably against the two second supporting portions B2 of the first wheel seat 20. Alternatively, a set W can be installed between the second gear 51 and the second supporting portion B2.

The upper frame 7 has a lifting rod 70 and a vehicle-mounted assembly 80 .

The lifting rod 70 is axially movable and inserted into the lower sleeve hole 21 and the upper sleeve hole 22 of the first wheel seat 20. The lifting rod 70 has a rod 71 formed with a gear row 73, and the gear row 73 is engaged with the second gear 51. The gear row 73 is rotated by the second gear 51 to drive the upper frame 7 to rise and fall relative to the lower frame 1.

The vehicle-mounted assembly 80 is disposed on the lifting rod 70 for carrying a bicycle.

The above is the component structure of the bicycle repair rack of the invention. The following will further introduce the usage of the bicycle repair rack of the invention. The first rotating assembly 4 is rotated to rotate the first gear 41 of the second rotating assembly 5, and the second gear 51 rotates to drive the gear row 73 of the lifting rod 70 to move up and down. The gear row 73 moves up and down to make the upper rack 7 rise and fall.

By making the first gear 41 and the second gear 51 axially orthogonal, the gear row 73 is not likely to reversely drive the first gear 41 and the second gear 51 to rotate, thereby achieving the effect of simplifying the structure and preventing improper lowering due to load. The first gear 41 being a spiral gear can further enhance this effect.

1: Lower frame 10: Frame 20: First wheel seat 21: Lower sleeve hole 22: Upper sleeve hole 30: Second wheel seat 4: First rotating group 40: First rotating member 41: First gear 42: Driving part 5: Second rotating group 50: Second rotating member 51: Second gear 60: Third rotating member 61: Third gear 62: Sleeve fixing hole 7: Upper frame 70: Lifting rod 71: Rod 72: Gear block 73: Gear row 80: Vehicle assembly B1: First support part B2: Second support part P1: First pivot P2: Second pivot P3: Third pivot P4: Fourth pivot S1: Pivot W: Kit

The following is a further description of the bicycle repair rack provided by the present invention with reference to the embodiments and drawings, wherein: Figure 1 is a three-dimensional assembly diagram of a preferred embodiment of the present invention; Figure 2 is a partial three-dimensional exploded diagram of a preferred embodiment of the present invention; Figure 3 is a partial assembly cross-sectional diagram of a preferred embodiment of the present invention; Figure 4 is a three-dimensional diagram of the first wheel seat in one direction of a preferred embodiment of the present invention; Figure 5 is a three-dimensional diagram of the first wheel seat in another direction of a preferred embodiment of the present invention; Figure 6 is a three-dimensional diagram of the second wheel seat in one direction of a preferred embodiment of the present invention; Figure 7 is a three-dimensional diagram of the second wheel seat in another direction of a preferred embodiment of the present invention; Figure 8 is a three-dimensional assembly diagram of another preferred embodiment of the present invention; Figure 9 is a three-dimensional exploded diagram of another preferred embodiment of the present invention; Figure 10 is a combined cross-sectional view of another preferred embodiment of the present invention; Figure 11 is a three-dimensional view of the first wheel seat in one direction of another preferred embodiment of the present invention; Figure 12 is a three-dimensional view of the first wheel seat in another preferred embodiment of the present invention in another direction; Figure 13 is a three-dimensional view of the second wheel seat in another preferred embodiment of the present invention.

1: Remove from shelves

4: First rotating group

7: On the shelves

70: Lifting rod

80: Car set

Claims (17)

A bicycle repair stand with adjustable height comprises: A lower frame having a first pivot and a second pivot; A first rotating assembly having a third pivot and a first gear, the third pivot being pivoted to the first pivot, and the first gear rotating with the third pivot; A second rotating assembly having a fourth pivot, a second gear and a third gear, the fourth pivot being pivoted to the second pivot, the second gear rotating with the first gear, and the third gear rotating synchronously with the second gear coaxially; wherein the first gear and the second gear are axially orthogonal; An upper rack has a gear row, which engages with the third gear and is rotated by the third gear to drive the upper rack to rise and fall relative to the lower rack. A bicycle repair stand as described in claim 1, wherein the first rotating assembly has a first rotating member, and the third pivot and the first gear are located on the first rotating member. A bicycle repair stand as described in claim 1, wherein the second rotating assembly has a second rotating member, and the fourth pivot and the second gear are located on the second rotating member. A bicycle repair stand as described in claim 3, wherein the second rotating assembly has a third rotating member installed on the second rotating member, and the third gear is located on the third rotating member. A bicycle repair stand as described in claim 1, wherein the lower frame includes a first wheel seat and a second wheel seat combined together, and the first rotating group and the second rotating group are arranged between the first wheel seat and the second wheel seat. A bicycle repair stand as described in claim 5, wherein the second hub is formed by the first wheel seat and the second wheel seat. A bicycle repair stand as described in claim 1, wherein the lower frame has a first supporting portion, and a kit is provided between the first gear and the first supporting portion. A bicycle repair stand as described in claim 1, wherein the lower frame has a second support portion, and a kit is provided between the third gear and the second support portion. A bicycle repair stand as described in claim 1, wherein the fourth pivot is a pivot and the third gear has a set of fixing holes installed on the fourth pivot. A bicycle repair stand with adjustable height comprises: A lower frame having a first pivot and a second pivot; A first rotating assembly having a third pivot and a first gear, the third pivot being pivoted to the first pivot, and the first gear rotating with the third pivot; A second rotating assembly having a fourth pivot and a second gear, the fourth pivot being pivoted to the second pivot, and the second gear rotating with the first gear; wherein the first gear and the second gear are axially orthogonal; An upper frame having a gear row, the gear row being engaged with the second gear and rotating with the second gear to drive the upper frame to rise and fall relative to the lower frame. A bicycle repair stand as described in claim 10, wherein the first rotating assembly has a first rotating member, and the third pivot and the first gear are located on the first rotating member. A bicycle repair stand as described in claim 10, wherein the second rotating assembly has a second rotating member, and the fourth pivot and the second gear are located on the second rotating member. A bicycle repair stand as described in claim 10, wherein the lower frame includes a first wheel seat and a second wheel seat combined together, and the first rotating group and the second rotating group are arranged between the first wheel seat and the second wheel seat. A bicycle repair stand as described in claim 13, wherein the first pivot point is at the first wheel seat and the second pivot point is at the first wheel seat. A bicycle repair stand as described in claim 10, wherein the lower frame has a first supporting portion, and a kit is provided between the first gear and the first supporting portion. A bicycle repair stand as described in claim 10, wherein the lower frame has a second support portion, and a kit is provided between the second gear and the second support portion. A bicycle repair rack as described in claim 10, wherein the second hinge and the fourth hinge are connected by a hinge.

Images