Multifunctional workbench for bicycle assembly

Abstract

This invention relates to a multifunctional workbench for bicycle assembly, comprising a base, a telescopic column, a main arm detachably connected to the top of the telescopic column, a clamping assembly, and a support arm mounted on the main arm. The clamping assembly is detachably connected to both the main arm and the top of the telescopic column. When the main arm is connected to the telescopic column, the clamping assembly is operably mounted on the main arm; when the main arm is detached from the telescopic column, the clamping assembly is operably mounted on the top of the telescopic column. The clamping assembly and support arm work together to stably clamp long bicycles; the clamping assembly can also be used independently. The workbench is suitable for bicycles of standard sizes, offering a wide range of applications. The telescopic column allows for bicycle lifting and lowering, enabling the operator to operate in a more comfortable posture by raising the bicycle to eye level, effectively reducing the difficulty of the operation. Furthermore, after completing the operation, the bicycle can be quickly unloaded onto the ground, saving time and effort.

Description

Technical Field

[0001] This invention relates to the field of bicycle manufacturing technology, and more particularly to a multifunctional workbench for bicycle assembly. Background Technology

[0002] The frame is the basic structural component of a bicycle, and other parts are usually mounted directly or indirectly to the frame. The conventional practice for assembling a bicycle is to use assembly jigs to hold the frame in place before installing other parts onto the frame.

[0003] A Chinese patent document with publication number CN120839730A discloses a multi-functional workbench for bicycle assembly. This workbench uses a clamping unit to hold a portion of the bicycle frame, enabling the bicycle to be raised, lowered, and rotated horizontally and vertically. Only one machine is needed to assemble the entire bicycle. However, for longer bicycles (such as cargo bicycles), clamping only a portion of the frame is difficult to achieve stable holding, easily leading to tilting, wobbling, or even falling off, severely impacting installation / repair efficiency and even posing safety risks. Currently, there is a lack of bicycle assembly equipment suitable for both standard and longer bicycles. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a multifunctional workbench for bicycle assembly.

[0005] This invention is achieved through the following technical solution:

[0006] The multi-functional workbench for bicycle assembly provided in this application includes a base for contacting the ground, a telescopic column connected to the base at its bottom, a main arm detachably connected to the top of the telescopic column, a clamping assembly for clamping a part of the bicycle, and a support arm for supporting the other part of the bicycle. The telescopic column can extend and retract in a vertical direction, and the support arm is mounted on the main arm. The clamping assembly can be detachably connected to the main arm and also detachably connected to the top of the telescopic column. When the main arm is connected to the telescopic column, the clamping assembly is operably mounted on the main arm; when the main arm is detached from the telescopic column, the clamping assembly is operably mounted on the top of the telescopic column.

[0007] Furthermore, when the main arm is connected to the telescopic column, the distance between the clamping assembly and the support arm in the lateral direction can be adjusted.

[0008] Optionally, the support arm can be adjusted in position in the vertical direction relative to the main arm.

[0009] Optionally, the support arm includes a secondary arm, a pull rod that can move vertically relative to the secondary arm, a swing arm for supporting the bicycle frame, and a first operating mechanism for user operation. The swing arm is connected to the pull rod and can move vertically relative to the secondary arm and rotate in the horizontal plane. The first operating mechanism can drive the pull rod to move vertically relative to the secondary arm, and the movement of the pull rod can drive the movement of the swing arm.

[0010] Optionally, the first operating mechanism includes a first handle and a first connecting rod. One end of the first handle is rotatably connected to the auxiliary arm, one end of the first connecting rod is rotatably connected to the first handle, and the other end of the first connecting rod is rotatably connected to the upper end of the pull rod.

[0011] Optionally, the swing arm is rotatably connected to the pull rod, and the swing arm can rotate relative to the pull rod in the horizontal plane, but cannot move relative to the pull rod in the vertical plane.

[0012] Optionally, the swing arm is rotatably connected to the tie rod via a bearing.

[0013] Furthermore, the bearing is installed in a bearing housing, and the lower end of the pull rod is connected to the bearing housing; preferably, the auxiliary arm has a second guide member for guiding the vertical movement of the bearing housing.

[0014] Optionally, a support member is installed on the swing arm.

[0015] Optionally, the support has a V-groove.

[0016] Preferably, the support member can be adjusted horizontally relative to the swing arm along the rotation center of the swing arm.

[0017] Optionally, the clamping assembly includes a clamp connected to the rotating arm for clamping a portion of the bicycle, a rotating arm connected to the main arm and capable of rotating in a vertical plane relative to the main arm, and a first stop mechanism for locking the rotating arm.

[0018] Optionally, the clamp is connected to the rotating arm via a connecting unit, and the clamp can adjust its angle relative to the connecting unit in the vertical plane.

[0019] Optionally, the clamping assembly further includes a fixed base that can be connected to the main arm and the telescopic column, a rotating base mounted on the fixed base and capable of rotating in a horizontal plane relative to the fixed base, and a second stop mechanism for locking the rotating base; the rotating arm is mounted on the rotating base.

[0020] Optionally, the base includes a chassis with a flat bottom surface.

[0021] Optionally, the base also includes at least three caster assemblies, each including a height-adjustable roller that can switch between a first position and a second position. When the roller is in the first position, the bottom surface of the roller is higher than the bottom surface of the chassis; when the roller is in the second position, the bottom surface of the roller is lower than the bottom surface of the chassis.

[0022] Compared with the prior art, this application has at least the following beneficial effects:

[0023] 1. This application is applicable to both the assembly and repair of conventional bicycles and long bicycles, and is powerful and widely applicable.

[0024] 2. The telescopic column of this application can raise and lower the bicycle. By raising the bicycle to the operator's eye level, the operator can operate in a more comfortable posture, which can effectively reduce the difficulty of the operation. Moreover, after the operation is completed, the bicycle can be quickly unloaded on the ground through the telescopic column, saving time and effort.

[0025] 3. The support component of this application can be adjusted laterally relative to the clamping assembly to accommodate bicycles of different lengths; the support part can be adjusted vertically relative to the clamping assembly to accommodate bicycles of different heights; the support part can be adjusted on the support arm to accommodate bicycles of different widths, and can prevent the bicycle from falling, making it safe and reliable.

[0026] 4. When the user installs the support components on the telescopic column, the combination of the rotating arm, rotating seat and telescopic column can lift the bicycle at different heights and in different shapes, which can improve the efficiency of bicycle assembly or maintenance.

[0027] 5. The base of this application can quickly and freely switch between a mobile state and a non-mobile state. When in the mobile state, an operator can easily move the entire multi-functional workbench for bicycle assembly; while in the non-mobile state, the base provides stable support and is safe to use.

[0028] Of course, implementing any of the embodiments of the present invention does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a perspective view of the multi-functional workbench for bicycle assembly when the main arm is mounted on the telescopic column in the embodiment.

[0031] Figure 2 This is a schematic diagram of the structure of a main arm and a support arm in one embodiment;

[0032] Figure 3 This is a schematic diagram of another type of support arm in the embodiment;

[0033] Figure 4 This is a perspective view of the operating mechanism and pull rod in the embodiment;

[0034] Figure 5 This is a cross-sectional view of the operating mechanism and the pull rod in the embodiment;

[0035] Figure 6 This is a schematic diagram of the structure of the multi-functional workbench for bicycle assembly when the swing arm is in the second height position in the embodiment;

[0036] Figure 7 This is a perspective view of the multi-functional workbench for bicycle assembly when the clamping component is mounted on the telescopic column in the embodiment.

[0037] Figure 8 This is a schematic diagram of the structure of a clamping component in one embodiment;

[0038] Figure 9 This is a schematic diagram of a clamping assembly when the clamp is not shown in the embodiment.

[0039] Figure 10 This is an exploded view of the rotating arm and the first stop mechanism in the embodiment;

[0040] Figure 11 This is a cross-sectional view of the rotating arm and the first stop mechanism in the embodiment;

[0041] Figure 12 This is a cross-sectional view of the rotary seat and the second stop mechanism in the embodiment;

[0042] Figure 13 This is a perspective view of a clamp in one embodiment;

[0043] Figure 14 This is a cross-sectional view of one of the fixtures in the embodiment. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other. It should also be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.

[0046] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Please see Figure 1 This embodiment discloses a preferred multi-functional workbench for bicycle assembly, including a base 1, a telescopic column 2, a main arm 3, a clamping assembly 4, and a support arm 5.

[0049] The base 1 is used to contact the ground to support the entire multi-functional workbench for bicycle assembly and the bicycle or bicycle frame.

[0050] The bottom of the telescopic column 2 is connected to the base 1. With the stable support of the base 1, the telescopic column 2 can stably remain upright and automatically extend and retract along the Z-direction. The Z-direction is the vertical direction. The telescopic column 2 can move the main arm 3 and the objects mounted on it up and down along the Z-direction. The telescopic column 2 allows adjustment of the lifting height of the bicycle or bicycle frame for user operation and also facilitates easy unloading after assembly by lowering the bicycle or bicycle frame to the ground. It is worth noting that the telescopic column 2 can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder, etc.

[0051] The main boom 3 can be detachably connected to the top of the telescopic column 2, and the support arm 5 is installed on the main boom 3.

[0052] The clamping assembly 4 can be detachably connected to the main arm 3, and can also be detachably connected to the top of the telescopic column 2.

[0053] When used for assembling long bicycles, the main arm 3 is connected to the telescopic column 2, and the clamping assembly 4 is operably mounted on the main arm 3. The clamping assembly 4 can clamp a certain part of the bicycle or bicycle frame, and the support arm 5 can support another part of the bicycle. When the telescopic column 2 drives the main arm 3 to rise and fall, the clamping assembly 4 and the support arm 5 can move synchronously with the main arm 3 in the Z direction. Through the cooperation of the clamping assembly 4 and the support arm 5, the bicycle or bicycle frame can be stably maintained in a suspended state. When used for assembling regular bicycles, the main arm 3 is removed from the telescopic column 2, and the clamping assembly 4 is removed from the main arm 3 and then mounted on the top of the telescopic column 2.

[0054] In an exemplary embodiment, the top of the telescopic column 2 has a first connecting component 21 that can be connected to the main arm 3 and the clamping assembly 4; correspondingly, the main arm 3 has a second connecting component 301 for connecting to the first connecting component 21, the main arm 3 has a third connecting component 302 for connecting to the clamping assembly 4, and the clamping assembly 4 has a connecting component that can be connected to the main arm 3 and the telescopic column 2.

[0055] In an exemplary embodiment, when used for assembling long bicycles, the distance between the clamping assembly 4 and the support arm 5 in the X direction is adjustable, where the X direction is a horizontal direction perpendicular to the Z direction. This allows for the assembly of bicycles or bicycle frames of different lengths. Specifically, in some embodiments, the support arm 5 can be adjusted in position relative to the main arm 3 in the X direction. When the position of the clamping assembly 4 on the main arm 3 is fixed, the distance between the clamping assembly 4 and the support arm 5 can be adjusted by adjusting the position of the support arm 5 on the main arm 3 to meet the assembly / repair needs of bicycles or bicycle frames of different specifications.

[0056] Please see Figure 2In some embodiments, the main arm 3 has a first guide member and a sliding frame 31. The first guide member is a member for guiding the sliding frame 31 to move in the X direction. In other words, the direction of movement of the support arm 5 in the X direction is defined by the guiding direction of the first guide member. It is worth noting that the first guide member can be any common form and structure, such as a transverse groove 32 formed on the main arm 3 for a portion of the sliding frame 31 to slide. The support arm 5 is connected to the sliding frame 31, and the sliding frame 31 can slide on the main arm 3 in the X direction. Naturally, the support arm 5 can also move relative to the main arm 3 in the X direction, thereby realizing the lateral position adjustment of the support arm 5. Of course, the sliding frame 31 has a first locking fastener for locking the sliding frame 31 to the main arm 3. It should be understood that when the first locking fastener is locked, the sliding frame 31 is locked, the sliding frame 31 cannot slide on the main arm 3, and the lateral position of the support arm 5 on the main arm 3 is fixed. Correspondingly, when the first locking device is unlocked, the sliding bracket 31 is released and can slide laterally on the main arm 3, and the lateral position of the support arm 5 on the main arm 3 is adjustable. Preferably, the main arm 3 is substantially parallel to the X direction.

[0057] In some embodiments, the sliding frame 31 is slidably connected to the first guide member via a first slider. See also... Figure 3 In the exemplary embodiment illustrated, the first slider is mounted within and clearance-fitted with the transverse groove 32. The first locking device includes a first locking knob, which passes through the sliding frame 31 and connects to the first slider. Tightening the first locking knob locks the sliding frame 31 to the main arm 3. In other embodiments, spaced locking holes are provided on the main arm 3, and the first locking knob is inserted into the corresponding locking holes to lock the sliding frame 31 in that position. The locking method and corresponding structural design of the first locking device can be selected by those skilled in the art as needed. This application is merely illustrative and not intended to be limiting.

[0058] To further enhance the adaptability of the multi-functional workbench for bicycle assembly, in some embodiments, the support arm 5 can be adjusted up and down relative to the main arm 3, so that the user can adjust the height of the support arm 5 as needed, and then adjust the height difference between the clamping assembly 4 and the support arm 5 to accommodate bicycles or bicycle frames of different heights, or to accommodate different lifting states of the bicycle.

[0059] In the illustrated exemplary embodiment, the support arm 5 is vertically movable relative to the sliding frame 31. Naturally, the sliding frame 31 has a second locking fastener for securing the sliding frame 31 and the support arm 5. It should be understood that when the second locking fastener is engaged, the sliding frame 31 and the support arm 5 cannot slide vertically relative to each other, and the vertical position of the support arm 5 on the main arm 3 is fixed. Correspondingly, when the second locking fastener is disengaged, the support arm 5 is released, and the support arm 5 can move vertically relative to the sliding frame 31 and the main arm 3; the vertical position of the support arm 5 on the main arm 3 is adjustable.

[0060] exist Figure 2 In the exemplary embodiment shown, the support arm 5 has a second guide member, which is a component used to guide the vertical movement of the support arm 5 relative to the sliding frame 31. It is worth noting that the second guide member can be any common form and structure, such as a vertical groove formed on the support arm 5 for a portion of the sliding frame 31 to slide. In some embodiments, the sliding frame 31 slides in conjunction with the second guide member via a second slider. The second locking fastener includes a plurality of second locking knobs, which pass through the sliding frame 31 and connect to the second slider. Tightening the second locking knobs locks the sliding frame 31 to the support arm 5. Those skilled in the art can choose the locking method and corresponding structural design of the second locking fastener as needed; this application is merely illustrative and not intended to limit its use.

[0061] In some embodiments, a support member 501 is installed on the support arm 5. The support member 501 is used to directly contact the bicycle or a part of the bicycle frame, such as a partial frame. In use, a certain position of the bicycle or bicycle frame can be directly placed on and pressed on the support member 501, which can support it.

[0062] In some embodiments, the support member 501 can be adjusted in position relative to the support arm 5 along the Y direction, where the Y direction is a longitudinal horizontal axis perpendicular to the Z and X directions. This allows the support member 501 to be manipulated and moved / adjusted in three planes (i.e., the xy plane, xz plane, and yz plane) to accommodate bicycles of different lengths, widths, and heights. Of course, the support member 501 has a third locking fastener for locking the support member 501 to the support arm 5. It should be understood that when the third locking fastener is locked, the support member 501 cannot slide longitudinally relative to the support arm 5, and its longitudinal position on the support arm 5 is fixed; conversely, the opposite is also true. In some embodiments, the support arm 5 has a third guide member. The third guide member is a member for guiding the support member 501 to move relative to the support arm 5 along the Y direction; in other words, the Y direction is defined by the guiding direction of the third guide member. It is worth noting that the third guide member can be any common form and structure, for example, it can be a longitudinal groove formed on the support arm 5 for a portion of the support member 501 to slide. In some embodiments, the third locking device includes a third locking knob. Tightening the third locking knob can lock the support member 501 and the support arm 5; loosening the third locking knob can unlock the support member 501 and the support arm 5. This is a conventional technique in the art and will not be described in detail here.

[0063] In some of the above embodiments, the support arm 5 can be adjusted in the X direction relative to the main arm 3 to adjust the lateral spacing between the clamping component 4 and the support arm 5. However, this application is not limited to this. For example, in some embodiments, the position of the support arm 5 on the main arm 3 cannot be adjusted, while the position of the clamping component 4 on the main arm 3 can be adjusted. In other embodiments, the positions of both the clamping component 4 and the support arm 5 on the main arm 3 can be adjusted. These methods can all achieve the adjustment of the spacing between the support arm 5 and the clamping component 4.

[0064] In some embodiments, please refer to Figure 3 The support arm 5 includes a swing arm 51, a secondary arm 52, a pull rod 53, and a first operating mechanism 54. The secondary arm 52 is connected to the main arm 3. The swing arm 51 supports the bicycle frame and can move relative to the secondary arm 52 in the Z direction. The swing arm 51 can also rotate relative to the secondary arm 52 in the horizontal XY plane. The first operating mechanism 54 is for user operation. Through the first operating mechanism 54, the pull rod 53 can be moved relative to the secondary arm 52 in the Z direction. The up and down movement of the pull rod 53 can synchronously drive the swing arm 51 to move relative to the secondary arm 52 in the Z direction.

[0065] Please see Figures 4 to 5 To further stabilize the movement of the pull rod 53 in the Z direction, in some embodiments, a fourth guide member is provided on the auxiliary arm 52. The fourth guide member is a component used to guide the movement of the pull rod 53 relative to the auxiliary arm 52 in the Z direction. It is worth noting that the fourth guide member can be any common form and structure, such as a vertical groove formed on the auxiliary arm 52 for sliding a portion of the pull rod 53; or a first guide block 521 mounted on the auxiliary arm 52, the first guide block 521 having a vertical guide channel that matches the pull rod 53, through which the pull rod 53 passes.

[0066] In some embodiments, the first operating mechanism 54 includes a first handle 541 and a first connecting rod 542. One end of the first handle 541 is rotatably connected to the auxiliary arm 52, one end of the first connecting rod 542 is rotatably connected to the first handle 541, and the other end of the first connecting rod 542 is rotatably connected to one end of the pull rod 53. In an exemplary embodiment, one end of the first handle 541 is connected to a first pin 543, thereby achieving a rotatable connection with the mounting bracket; one end of the first connecting rod 542 is rotatably connected to the first handle 541 via a second pin 544, and the other end of the first connecting rod 542 is rotatably connected to the pull rod 53 via a third pin 545. Rotating the first handle 541 in both directions can drive the first connecting rod 542 to move in the vertical plane, thereby driving the pull rod 53 to move up and down, realizing the switching of the swing arm 51 between a first height position and a second height position.

[0067] In some embodiments, the first handle 541 has a limiting component that can limit the rotation angle of the first handle 541 in the vertical plane, thereby limiting the travel of the pull rod 53.

[0068] In some embodiments, the swing arm 51 is rotatably connected to the pull rod 53, allowing the swing arm 51 to rotate horizontally relative to the pull rod 53, but preventing it from moving vertically relative to the pull rod 53. Preferably, the swing arm 51 is rotatably connected to the pull rod 53 via a bearing 62. See also... Figure 5 In the exemplary embodiment shown in the figure, the lower end of the pull rod 53 is connected to the bearing seat 61, the adapter 63 is rotatably connected to the bearing seat 61 through the bearing 62, and the swing arm 51 is connected to the adapter 63 to realize the rotatable connection between the swing arm 51 and the pull rod 53.

[0069] In some embodiments, the auxiliary arm 52 has a fifth guide member, which is a member for guiding the bearing housing 61 to move relative to the auxiliary arm 52 in the Z direction. It is worth noting that the fifth guide member can be any common form and structure, such as a vertical groove formed on the auxiliary arm 52 for sliding a portion of the bearing housing 61. Alternatively, it can be a second guide block 522 mounted on the auxiliary arm 52, having a vertical guide channel that matches the bearing housing 61, through which the bearing housing 61 can pass. The second guide member not only guides the bearing housing 61 to move in the Z direction but also prevents the bearing housing 61 from wobbling left and right.

[0070] In some embodiments, the support member 501 has a V-groove 5011, which can accommodate frame tubes of different sizes and restricts the frame from sliding on the support member 501. In an exemplary embodiment, the V-groove 5011 restricts the frame from sliding radially on the support member 501 along the swing center of the swing arm 51.

[0071] In some embodiments, the swing arm 51 includes a horizontal arm and a vertical arm, the vertical arm being rotatably connected to the tie rod 53, and a support member 501 mounted on the horizontal arm. Furthermore, the support member 501 is adjustable in position along the length of the horizontal arm. In some embodiments, the horizontal arm and vertical arm are manufactured integrally. In other embodiments, the horizontal arm and vertical arm are manufactured separately and then joined together. In the illustrated exemplary embodiment, both the horizontal arm and vertical arm are profiles, connected together by a corner plate.

[0072] exist Figure 3 In the exemplary embodiment shown, the auxiliary arm 52 has a second guide member, which is a member for guiding the auxiliary arm 52 to move relative to the sliding frame 31 in the Z direction. It is worth noting that the second guide member can be any common form and structure, such as a vertical groove 523 formed on the auxiliary arm 52 for sliding a portion of the connecting member.

[0073] In some embodiments, the sliding frame 31 includes a second slider, and a second locking knob 524 is connected to the second slider. The second locking knob 524 is located in a vertical groove 523. When the second locking knob 524 is loosened, the auxiliary arm 52 can move vertically relative to the second locking knob 524. Tightening the second locking knob 524 can lock the sliding frame 31 to the main arm 3, and also lock the auxiliary arm 52 to the sliding frame 31. The locking method and corresponding structural design of the second locking device can be selected by those skilled in the art as needed. This application is only an example and is not intended to limit the scope.

[0074] Please see Figure 6 As shown, after the complete assembly of the bicycle is completed, the telescopic column 2 is shortened by the control unit, so that the bicycle is lowered to a suitable height and the clamping component 4 is released, and the wheels are on the ground. The user turns the first handle 541 to lower the lever 53 to the predetermined position. At this time, the swing arm 51 is lowered from the first height position to the second height position, so that the swing arm 51 and the bicycle are at a certain distance in the vertical direction. After that, the user can easily rotate the swing arm 51 in the horizontal plane to be directly below the bicycle. In this way, the swing arm 51 will not obstruct the bicycle, and the user can easily push the bicycle away from the assembly area to facilitate the assembly of the next bicycle.

[0075] Please see Figure 5 and Figure 8 The clamping assembly 4 includes a clamp 46 for directly clamping a bicycle or a part of a bicycle frame. The clamp 46 can be an internal tension clamp or an external clamp. Preferably, the clamp 46 is detachable and replaceable, so that different clamping tools can be used according to different bicycle models to meet the needs of different models.

[0076] Please see Figure 7 When assembling a standard bicycle, the main arm 3 is removed from the telescopic column 2, and the clamping assembly 4 is removed from the main arm 3 and then mounted on top of the telescopic column 2. Since bicycle assembly involves the assembly of various parts, users often need to observe and install components in different positions. If the angle of the suspended bicycle in the vertical plane is adjustable, it facilitates operation. For example, by tilting the bicycle, the user can observe and operate it more comfortably at close range, allowing for more accurate and easier installation of certain components. For this purpose, please refer to... Figure 8 and Figure 9 In some embodiments, the clamping assembly 4 further includes a rotating arm 44 and a first stop mechanism 45. The rotating arm 44 is mounted on the main arm 3, and the clamp 46 is connected to the rotating arm 44. The rotating arm 44 can rotate in a vertical plane relative to the telescopic column 2 and the main arm 3. When the user rotates the rotating arm 44 to the desired angle, the first stop mechanism 45 can lock the rotating arm 44 at that angle.

[0077] It is worth noting that there are many methods in the art to achieve locking of rotating parts; that is, those skilled in the art can reasonably design the first stop mechanism 45 as needed. Please refer to... Figure 10 and Figure 11 In the illustrated exemplary embodiment, the first stop mechanism 45 includes a stop disc 451, a stop pin 452, and a stop handle 453. A rotating arm 44 is rotatably connected to a spindle 443 via bearings, and the spindle 443 is fixedly connected to the stop disc 451. The stop pin 452 is mounted on the stop disc 451 and can move axially a certain distance relative to the stop disc 451. The stop handle 453 is connected to the stop pin 452 and is used to move the stop pin 452 axially. Multiple stop holes 441 are arranged on the rotating arm 44 around the spindle 443 on the same circumference. When the rotating arm 44 rotates, the multiple stop holes 441 can be aligned with the stop pin 452 one by one. Inserting the stop pin 452 into one of the stop holes 441 of the rotating arm 44 can prevent the rotating arm 44 from rotating; conversely, inserting it into the stop hole 441 will prevent the rotating arm 44 from rotating.

[0078] When the stop pin 452 leaves the stop hole 441, it prevents the rotating arm 44 from rotating on its own under its own weight and the weight of the bicycle. In some embodiments, the first stop mechanism 45 further includes a damping device mounted on the stop plate 451. The damping device includes a round-headed spring pin 454. Multiple indexing slots 442 matching the round-headed spring pin 454 are arranged on the same circumference around the spindle 443 on the rotating arm 44. The free end of the round-headed spring pin 454 can be inserted into the indexing slot 442 under the action of the spring, thereby preventing the rotating arm 44 from rotating in the vertical plane; however, when the external force of rotation increases to a certain extent, it can force the round-headed spring pin 454 to retract, thereby allowing the rotating arm 44 to rotate in the vertical plane. The edges of the indexing slots 442 are smoothly transitioned so that the free end of the round-headed spring pin 454 can slide into or out of the indexing slots 442.

[0079] In an exemplary embodiment, a stop hole 441 is formed by opening a hole at the bottom of each indexing slot 442. When it is necessary to adjust the angle of the rotating arm 44 in the vertical plane, the stop pin 452 is moved backward by the stop handle 453 and moves away from the stop hole 441. Then, a slight rotational force is applied to the rotating arm 44 to drive it to rotate. As the rotating arm 44 rotates, the round-headed spring pins 454 will be engaged into the indexing slots 442 one by one, so the user will feel a sticking sensation when rotating. Therefore, the sticking sensation between the round-headed spring pins 454 and the indexing slots 442 can be used to determine whether the stop pin 452 is aligned with one of the stop holes 441. When the rotation reaches the appropriate angle, the stop pin 452 is moved forward by the stop handle 453 until it is inserted into the corresponding stop hole 441 of the rotating arm 44, thereby fixing the angle of the rotating arm 44 in the vertical plane.

[0080] Different on-site environments, user positions, assembly of different components, and repair locations all present varying requirements for the bicycle's lifting posture. If the lifted bicycle can be repositioned horizontally, it better meets these diverse needs. For this purpose, please refer to... Figure 9 In some embodiments, the clamping assembly 4 further includes a rotating base 42 and a second stop mechanism 43. The rotating base 42 is mounted on a fixed base 41 and can rotate in a horizontal plane relative to the fixed base 41. The fixed base 41 can be mounted on the main arm 3 or the telescopic column 2. The stop plate 451 is fixedly connected to the rotating base 42 by screws. When the user rotates the rotating base 42 to the desired position, the second stop mechanism 43 can lock the rotating base 42 in that position. In some embodiments, the fixed base 41 has connecting holes for connection to the main arm 3 or the telescopic column 2 via bolts.

[0081] It is worth noting that those skilled in the art can design the second stop mechanism 43 reasonably according to their needs. Please refer to [link / reference needed]. Figure 9 and Figure 12 In the illustrated exemplary embodiment, the second stopping mechanism 43 includes a locking sleeve 431, a locking block 432, and a locking knob 431. The outer circular surface of the locking sleeve 431 has a coaxial toothed ring, and the locking block 432 has teeth for engaging with the toothed ring. The axis of the locking sleeve 431 is parallel to the Z-direction. The locking sleeve 431 is fixedly connected to the fixed seat 41, and the locking block 432 is installed in the straight groove of the rotating seat 42. The locking knob 431 is threadedly connected to the rotating seat 42, and the inner end of the locking knob 431 is connected to the locking block 432. Rotating the locking knob 431 in the forward direction allows the locking block 432 to engage with the toothed ring of the locking sleeve 431, thereby preventing the rotating seat 42 from rotating horizontally relative to the fixed seat 41. Rotating the locking knob 431 in the reverse direction allows the locking block 432 to separate from the toothed ring of the locking sleeve 431, releasing the restriction of the locking sleeve 431 on the rotating seat 42. At this time, the rotating seat 42 can rotate horizontally relative to the fixed seat 41. In an exemplary embodiment, the rotating seat 42 is fitted over the locking sleeve 431 and is rotatably connected to the locking sleeve 431 via a first bearing 422; the rotating seat 42 is connected to a central shaft 421, the locking sleeve 431 is fitted over the central shaft 421, and a second bearing 423 is located between the central shaft 421 and the locking sleeve 431.

[0082] In some embodiments, the main arm 3 can rotate in the horizontal plane relative to the column 2 to adjust the position of the clamping assembly 4, the support arm 5, and the suspended bicycle or bicycle frame in the horizontal plane. Specifically, the main arm 3 is horizontally rotatably connected to the column 2, and there is a stop mechanism between them. When the main arm 3 is horizontally rotated to a suitable position, the stop mechanism can fix the main arm 3 in that position. It is worth noting that the horizontal rotation of the main arm 3 can be operated manually or automatically. For example, a motor can be used to drive the horizontal rotation of the main arm 3, or the user can manually rotate the main arm 3 after the stop is released. This is conventional technology in the art and will not be elaborated here.

[0083] Please see Figure 13 In the illustrated exemplary embodiment, clamp 46 is an external clamp that grips the bicycle or a portion of the bicycle frame (such as the seat tube) between two clamping parts 463. See also... Figure 13 and Figure 14 In some embodiments, the clamp 46 includes clamping arm A461, clamping arm B462, an operating mechanism, and a connecting unit. One end of clamping arm A461 is connected to a clamping part 463, and the other end of clamping arm A461 is connected to the connecting unit, which is connected to the rotating arm 44. One end of clamping arm B462 is movably connected to clamping arm A461, and the other end of clamping arm B462 is connected to another clamping part 463. The operating mechanism is for user operation and can be linked with clamping arm B462 to close and open the clamping part 463 of clamping arm B462 and clamping part 463 of clamping arm A461.

[0084] Specifically, in the illustrated exemplary embodiment, the operating mechanism includes a connecting rod 464, a handle 465, and an elastic element 466. One end of the handle 465 has a grip for the user to hold. A first position of the other end of the handle 465 is movably connected to the middle of the clamping arm B462, and a second position of the other end of the handle 465 is movably connected to one end of the connecting rod 464. The other end of the connecting rod 464 is movably connected to the clamping arm A461. One end of the elastic element 466 is connected to the handle 465, and the other end of the elastic element 466 is connected to the clamping arm A461 or a connecting unit. When the user holds the grip of the handle 465, pushing or pulling the handle 465 can cause the clamping arm B462 to rotate in both directions, switching the two clamping parts 463 between closing and opening. The elastic element 466 applies a pre-tension force to the handle 465 through its own deformation, causing resistance when the handle 465 causes the clamping arm B462 to open.

[0085] In the above embodiment, clamping arm A461, clamping arm B462, handle 465 and connecting rod 464 form a linkage mechanism. When operated by handle 465, the movement trajectory and range of clamping arm B462 are fixed, which can realize sizing clamping. Elastic element 466 provides a pulling force to handle 465 and then provides a self-locking elastic force to clamping arm B462.

[0086] Because bicycles come in different models, and the frames of different models have different outer diameters, in order to accommodate different bicycle models, in some embodiments, the length of the connecting rod 464 is adjustable. By adjusting the length of the connecting rod 464, the angle between the clamping arms A461 and B462 in the clamped state can be adjusted, thereby accommodating clamped parts of different sizes. In use, the length of the connecting rod 464 is adjusted according to the size of the clamped part to complete the production of clamped parts of the same model; then the length of the connecting rod 464 is adjusted according to the size of the next batch of clamped parts. Optionally, in some embodiments, the connecting rod 464 includes a screw and an adjusting nut, with one end of the screw installed in the adjusting nut. By rotating the adjusting nut, the depth to which the screw is inserted into the adjusting nut is adjusted, thereby changing the length of the connecting rod 464.

[0087] Because different parts of the bicycle frame have tubes at different angles, the clamp 46 is adjustable in some embodiments to allow for more flexible clamping of different parts of the bicycle frame. Specifically, the connecting unit includes a fixing plate 467, a locking knob 468, and a connecting shaft 469. One end of the connecting shaft 469 is fitted into the mounting opening at one end of the fixing plate 467 with a clearance fit, and the other end of the connecting shaft 469 is connected to the end of the clamping arm A461 away from the clamping part 463. The axis of the connecting shaft 469 is parallel to the rotation center line of the rotating arm 44. The fixing plate 467 is installed in a threaded hole, and the connecting shaft 469 has at least two locking holes evenly spaced along its circumference. By rotating the locking knob 468 in both directions, its inner end can be inserted into or removed from the locking hole of the connecting shaft 469, thereby achieving circumferential stopping or unlocking. By screwing the locking knob 468 into different locking holes of the connecting shaft 469, the clamp 46 can be fixed at different angles.

[0088] If the connecting shaft 469 is only secured by the locking knob 468, it is easy for the connecting shaft 469 to shift or even slip off if the bicycle or bicycle frame is too heavy. For this reason, please refer to... Figure 13 and Figure 14 In some embodiments, a limiting plate 470 is added to increase the limiting capability. Specifically, a limiting groove is machined on the outer circular surface of the connecting shaft 469, the limiting plate 470 is engaged in the limiting groove, and the limiting plate 470 is fixed to the fixing plate 467 with screws. The limiting plate 470 can axially limit the connecting shaft 469 without affecting the circumferential rotation of the connecting shaft 469, which can effectively solve the problem of displacement.

[0089] Since the multi-functional workbench for bicycle assembly in this embodiment is placed directly on the ground via its base 1, and most production workshop floors are painted, to avoid damaging the ground by using screws to fix the base 1, in an exemplary embodiment, the base 1 includes a circular chassis 11 with a flat bottom surface. The bottom of the telescopic column 2 is connected to the chassis 11, and the large contact area between the chassis 11 and the ground increases the friction between them, so that the position can be fixed by the weight of the equipment itself.

[0090] Furthermore, due to the heavy weight of the multi-functional workbench for bicycle assembly, to facilitate its movement, in some embodiments, the base 1 further includes at least three caster assemblies 11. The caster assemblies 11 are mounted on the chassis 11, and each caster assembly 11 includes height-adjustable rollers, meaning the rollers can be adjusted vertically relative to the chassis 11. The rollers can switch between a first height position and a second height position. When the rollers are in the first height position, the bottom surface of the rollers is higher than the bottom surface of the chassis 11; when the rollers are in the second height position, the bottom surface of the rollers is lower than the bottom surface of the chassis 11. The lifting structure and control method of the rollers are conventional techniques in the art, and those skilled in the art can design them reasonably as needed, so they will not be described in detail here.

[0091] In this embodiment, the working principle of the base 1 switching between movable and fixed states is as follows: Assuming that in the initial state, the rollers are at the first height position, the bottom surface of the chassis 11 is in contact with the ground, the bottom surface of the rollers is higher than the bottom surface of the chassis 11, and the rollers are not in contact with the ground, the bicycle assembly lifting platform is fixed to the ground by its own weight. When the rollers are lowered, the chassis 11 is lifted off the ground by the reaction force, the friction between the chassis 11 and the ground is released, and the rollers descend to the second height position. Multiple rollers replace the chassis 11 in contact with the ground, at which point the entire bicycle assembly lifting platform can be easily moved. After the bicycle assembly lifting platform has moved to the predetermined position, the rollers are raised back to the first height position, the chassis 11 re-contacts the ground, and the position is fixed by the weight of the equipment. Moreover, slippage between the chassis 11 and the ground is not likely, resulting in good stability and safe use.

[0092] The clamping component and support arm of this application work together to stably clamp bicycles, and can lift bicycles of various sizes at different heights and in different shapes, making it easier for operators to operate in a more comfortable posture. It can effectively reduce the difficulty of operation, improve the efficiency of bicycle assembly or maintenance, and prevent bicycles from falling, making it safe and reliable.

[0093] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-functional workbench for bicycle assembly, characterized in that, include: Base (1) for contact with the ground; Telescopic column (2) is connected to the base (1) at the bottom and can extend and retract in the vertical direction; The main arm (3) can be detachably connected to the top of the telescopic column (2); A clamping assembly (4) that can be detachably connected to the main arm (3) and detachably connected to the top of the telescopic column (2), the clamping assembly (4) being used to clamp a part of the bicycle; and A support arm (5) installed on the main arm (3) to support the other part of the bicycle. When the main arm (3) is connected to the telescopic column (2), the clamping assembly (4) is operably mounted on the main arm (3); when the main arm (3) is removed from the telescopic column (2), the clamping assembly (4) is operably mounted on the top of the telescopic column (2).

2. The multi-functional workbench for bicycle assembly according to claim 1, characterized in that, When the main arm (3) is connected to the telescopic column (2), the distance between the clamping assembly (4) and the support arm (5) in the lateral direction can be adjusted.

3. The multi-functional workbench for bicycle assembly according to claim 1 or 2, characterized in that, The support arm (5) can be adjusted in the vertical direction relative to the main arm (3).

4. The multi-functional workbench for bicycle assembly according to claim 1, characterized in that, The support arm (5) includes: Secondary arm (52); A lever (53) that can move vertically relative to the arm (52); A swing arm (51) for supporting the bicycle frame, the swing arm (51) being connected to a pull rod (53), the swing arm (51) being able to move vertically and rotate horizontally relative to the auxiliary arm (52); and The first operating mechanism (54) for user operation can drive the lever (53) to move vertically relative to the auxiliary arm (52), and the movement of the lever (53) can drive the swing arm (51) to move.

5. The multi-functional workbench for bicycle assembly according to claim 4, characterized in that, The first operating mechanism (54) includes a first handle (541) and a first connecting rod (542). One end of the first handle (541) is rotatably connected to the auxiliary arm (52), one end of the first connecting rod (542) is rotatably connected to the first handle (541), and the other end of the first connecting rod (542) is rotatably connected to the upper end of the pull rod (53).

6. The multi-functional workbench for bicycle assembly according to claim 5, characterized in that, The swing arm (51) is rotatably connected to the pull rod (53). The swing arm (51) can rotate in the horizontal plane relative to the pull rod (53), but the swing arm (51) cannot move in the vertical plane relative to the pull rod (53). Optionally, the swing arm (51) is rotatably connected to the pull rod (53) via a bearing (62). Optionally, the bearing (62) is installed in a bearing seat (51), and the lower end of the pull rod (53) is connected to the bearing seat (51). Preferably, the auxiliary arm (52) has a second guide member for guiding the vertical movement of the bearing seat (51).

7. The multi-functional workbench for bicycle assembly according to any one of claims 4-6, characterized in that, A support member (501) is installed on the swing arm (51); optionally, the support member (501) has a V-groove (5011); preferably, the support member (501) can be adjusted horizontally relative to the swing arm (51) along the rotation center of the swing arm (51) radially.

8. The multi-functional workbench for bicycle assembly according to any one of claims 1, 2, or 4-6, characterized in that, The clamping assembly (4) includes: Connected to the rotating arm (44), a clamp (46) is used to hold a part of the bicycle. A rotating arm (44) connected to the main arm (3) and capable of rotating in the vertical plane relative to the main arm (3); First stop mechanism (45) for locking the rotating arm (44).

9. The multi-functional workbench for bicycle assembly according to claim 8, characterized in that, The clamp (46) is connected to the rotating arm (44) via a connecting unit, and the clamp (46) can adjust its angle relative to the connecting unit in the vertical plane; optionally, the clamping assembly (4) further includes: A fixed base (41) that can be connected to the main boom (3) and the telescopic column (2); A rotating seat (42) mounted on a fixed base (41) and capable of rotating in a horizontal plane relative to the fixed base (41); and A second stop mechanism (43) for locking the rotating seat (42); The rotating arm (44) is mounted on the rotating seat (42).

10. The multi-functional workbench for bicycle assembly according to claim 1, 2, 4 or 7, characterized in that, The base (1) includes a chassis (11) with a flat bottom surface; optionally, the base (1) also includes at least three caster assemblies (12), each caster assembly (12) including a height-adjustable roller that can switch between a first position and a second position. When the roller is in the first position, the bottom surface of the roller is higher than the bottom surface of the chassis (11); when the roller is in the second position, the bottom surface of the roller is lower than the bottom surface of the chassis (11).

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