Forward-loading independent work station for bicycles

Abstract

The invention relates to an independent workstation for forward installation of bicycles. Comprising a base used for being placed on the ground, a telescopic electric cylinder with the bottom connected with the base, a rotating base installed on the top of the telescopic electric cylinder and capable of rotating in the horizontal plane relative to the telescopic electric cylinder, and a horizontal rotating locking mechanism used for locking the rotating base. The rotating arm is installed on the rotating base and can rotate in a vertical plane relative to the rotating base, the vertical rotating locking mechanism is used for locking the rotating arm, and the clamping unit is installed on the rotating arm. According to the independent work station for forward installation of the bicycle, lifting of a clamped part and rotation in the horizontal plane and the vertical plane can be achieved, and the whole bicycle can be assembled only through one work station; in addition, the telescopic electric cylinder is adopted for automatic lifting, discharging is convenient, and more time and labor are saved; according to the trundle assembly, switching between moving and fixing can be rapidly achieved by treading down or kicking up the pedal, operation is easy and rapid, and the working efficiency and the customer satisfaction degree can be improved.

Description

Technical Field

[0001] This invention relates to the field of bicycle manufacturing equipment technology, and more particularly to a stand-alone workstation for bicycle assembly. Background Technology

[0002] The frame is the basic structural component of a bicycle, and other parts are directly or indirectly mounted on it. Currently, bicycle assembly is usually completed on an assembly line. The bicycle frame is fixed to a conveyor belt using clamps, and then the conveyor belt transports the frames to be assembled to various workstations on the assembly line. This type of production line involves a large number of machines and requires a large number of operators. It requires a significant initial investment of capital and manpower, and also necessitates additional unloading mechanisms, making operation quite inconvenient.

[0003] Therefore, the applicant developed and designed a single-line bicycle assembly machine, as disclosed in Chinese patent document CN119347423A. This machine, through components such as a base, main column, sliding sleeve, and rotating arm, achieves multi-degree-of-freedom adjustment of the bicycle frame's lifting and lowering in place, as well as rotation in the horizontal and vertical planes. Only one machine is needed to assemble the entire bicycle. However, it uses manual operation for unloading. Without a balancing spring, manual force is required to counteract the bicycle's weight and allow it to descend slowly, which is not labor-saving. With a balancing spring, the overall height of the machine needs to be increased accordingly. This single-line bicycle assembly machine still has room for improvement. Furthermore, the lifting of the casters requires manually turning and adjusting nuts, which is very inconvenient. Summary of the Invention

[0004] This invention provides a bicycle mounting independent workstation to solve the aforementioned technical problems. Its primary solution is the inconvenience of raising and lowering the equipment, and its secondary solution is the inconvenience of switching between moving and fixing the equipment.

[0005] This invention is achieved through the following technical solution: The bicycle mounting stand-alone workstation provided in this application includes a base for placement on the ground, a telescopic electric cylinder connected to the base at its bottom, a rotating seat mounted on top of the telescopic electric cylinder and rotatable in a horizontal plane relative to the telescopic electric cylinder, a horizontal rotation locking mechanism for locking the rotating seat, a rotating arm mounted on the rotating seat and rotatable in a vertical plane relative to the rotating seat, a vertical rotation locking mechanism for locking the rotating arm, and a clamping unit mounted on the rotating arm.

[0006] Optionally, the base includes a chassis and at least three caster assemblies. Each caster assembly includes a bracket, a roller movably mounted on the bracket, and a first operating mechanism for driving the roller to rise and fall. The first operating mechanism allows the roller to 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.

[0007] Optionally, the first operating mechanism includes a pedal rotatably mounted on the bracket, a first connecting rod rotatably connected to the pedal and the axle of the roller respectively, and springs at both ends acting on the bracket and the first connecting rod respectively; the bracket has two axle guide holes for matching the lifting and lowering of the roller, and the two ends of the roller axle are respectively installed in one of the axle guide holes; when the pedal rotates in the forward and reverse directions, the pedal can push or pull the first connecting rod, causing the roller to switch between a first position and a second position. When the roller switches from the first position to the second position, the spring length shortens. When the roller is in the first position, the axle is located at the upper end of the axle guide hole, and the spring tends to keep the roller in the first position; when the roller is in the second position, the axle is located at the lower end of the axle guide hole, and the spring tends to keep the roller in the second position.

[0008] Optionally, the caster assembly further includes a fixed base and a support foot. The fixed base is connected to the chassis via a support frame, the upper end of the support foot is connected to the fixed base, and the bottom surface of the support foot is flush with the bottom surface of the chassis; the bracket is connected to the fixed base.

[0009] Optionally, the bracket is rotatably connected to the fixed base, and the bracket can rotate in the horizontal plane relative to the fixed base with the support foot as the center.

[0010] Optionally, the chassis has clearance holes corresponding to the positions of each caster assembly for the rollers to pass through. When the rollers switch between the first position and the second position, the bottom of the rollers passes through the chassis from the corresponding clearance holes.

[0011] Optionally, the clamping unit includes a clamping assembly, which includes a first clamping arm, a second clamping arm, a second connecting rod, and a handle. One end of the first clamping arm has a clamping block, and the other end is connected to a rotating arm. One end of the second clamping arm is rotatably connected to the first clamping arm, and the other end has a clamping block. The clamping blocks of the first clamping arm and the clamping blocks of the second clamping arm are arranged opposite to each other. One end of the second connecting rod is movably connected to the first clamping arm, and the other end is movably connected to one part of the handle. The other part of the handle is movably connected to the middle part of the second clamping arm. By pushing and pulling the handle, the second clamping arm can be rotated in both directions, so that the clamping blocks of the second clamping arm and the clamping blocks of the first clamping arm can switch between clamping and opening.

[0012] Preferably, one of the first clamping arm and the handle has a limiting groove, and the other has a limiting protrusion that matches the limiting groove. When clamping is required, pushing the handle causes the clamping block of the second clamping arm to come closer to the clamping block of the first clamping arm and clamp together, and the limiting protrusion can be inserted into the limiting groove to achieve self-locking. When releasing is required, pulling back the handle can cause the limiting protrusion to exit from the limiting groove to achieve unlocking.

[0013] Optionally, the length of the second link is adjustable.

[0014] Optionally, the clamping unit further includes a fixed plate and a third locking mechanism. The fixed plate is fixedly connected to the rotating arm, and the other end of the first clamping arm is mounted on the fixed plate and can rotate relative to the fixed plate in a vertical plane. The third locking mechanism is used to lock the first clamping arm.

[0015] Compared with the prior art, this application has at least the following beneficial effects: 1. The bicycle assembly independent workstation provided in this application can realize the lifting and rotation of the clamped parts in the horizontal and vertical planes. Only one unit is needed to complete the assembly of the entire bicycle. In addition, it uses a telescopic electric cylinder for automatic lifting and unloading, which is convenient and saves more time and effort. 2. The base of this application can be freely switched between a movable state and a fixed state. When it is in the movable state, an operator can easily move the entire device; while in the fixed state, it provides stable support, good stability, and safe use. 3. The caster assembly of this application allows for quick and easy switching between a mobile and a fixed state of the equipment by stepping on or kicking the pedal, which is convenient and quick to operate and helps to improve work efficiency and customer satisfaction. 4. The clamping unit of this application can achieve fixed-size clamping, and can quickly switch between clamping and releasing by operating the handle, which is simple to operate; 5. This application, by adjusting the length of the connecting rod, can be applied to the assembly of different bicycle models; 6. The angle of the clamping component in this application is adjustable, which can flexibly clamp different parts of the bicycle frame and has strong adaptability.

[0016] Of course, implementing any of the embodiments of the present invention does not necessarily require achieving all of the beneficial effects described above at the same time. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a perspective view of the bicycle-mounted independent workstation in the embodiment; Figure 2 This is a cross-sectional view of the bicycle-mounted stand-alone workstation in the embodiment; Figure 3 This is a perspective view of the movable and fixed switching device when the roller is in the second position in the embodiment; Figure 4 This is a perspective view of the caster assembly when the roller is in the first position in the embodiment; Figure 5 This is a front view of the caster assembly when the rollers are in the second position in the embodiment; Figure 6 This is a cross-sectional view of the caster assembly when the roller is in the first position in the embodiment; Figure 7 This is a perspective view of the rotating base, rotating arm, and locking mechanism in the embodiment; Figure 8 This is a cross-sectional view of the rotating base, rotating arm, and locking mechanism in the embodiment; Figure 9 This is a partial structural schematic diagram of the horizontal rotation locking mechanism in the embodiment; Figure 10 This is an exploded view of the rotating arm and the vertical rotating locking mechanism in the embodiment; Figure 11 This is a perspective view of the clamping unit in the embodiment; Figure 12 This is a perspective view of the first clamping arm in the embodiment; Figure 13 This is a perspective view of the handle in the embodiment; Figure 14 This is a schematic diagram of the clamping unit clamping in the embodiment; Figure 15 This is a diagram showing the changing states of the clamping unit from clamping to opening in the embodiment. The solid line represents the schematic diagram when it is opened to the maximum extent, and the dashed line represents the schematic diagram of the position of the second clamping arm and the operating mechanism in the clamping state. Figure 16 This is a cross-sectional view of the external clamping mechanism when the length of the second link is adjustable in the embodiment. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] See also Figure 1 , Figure 2 The preferred embodiment of the present invention discloses a bicycle mounting independent workstation, which includes a base 1, a telescopic electric cylinder 2, a rotating seat 3, a rotating arm 5, and a clamping unit 7.

[0024] The base 1 is used to place the device on the ground and provide stable support for the entire device.

[0025] The bottom of the telescopic electric cylinder 2 is connected to the base 1. The telescopic electric cylinder 2 is used to realize the lifting function, so that the height of the frame can be adjusted according to the operator's own height, and the unloading can be carried out after assembly.

[0026] The rotating seat 3 is mounted on top of the telescopic cylinder 2 and can rotate in the horizontal plane relative to the telescopic cylinder 2. The rotating seat 3 is used to adjust the position of the bicycle frame in the horizontal plane, making it convenient to adjust the bicycle frame's orientation in the horizontal plane according to the site environment and the operator's position. Of course, the rotating seat 3 is equipped with a horizontal rotation locking mechanism 4, which is used to lock the rotating seat 3 and prevent the rotating seat 3 from rotating in the horizontal plane relative to the telescopic cylinder 2.

[0027] The rotating arm 5 is mounted on the rotating base 3 and can rotate in the vertical plane relative to the rotating base 3. The rotating arm 5 is used to adjust the angle of the frame in the vertical plane, which is convenient for adjusting the angle of the frame according to different installation positions to adapt to the operator's operating habits and assembly requirements. Of course, the rotating arm 5 is equipped with a vertical rotation locking mechanism 6, which is used to lock the rotating arm 5 and prevent the rotating arm 5 from rotating in the vertical plane relative to the rotating base 3.

[0028] The clamping unit 7 is mounted on the rotating arm 5 and is used to clamp the frame, enabling the frame to be hoisted onto the bicycle assembly stand, so that the operator can install various parts onto the frame.

[0029] The bicycle mounting station in this embodiment allows for adjustment of the frame height, horizontal plane, and vertical plane position. The combination of these three adjustment methods enables multi-degree-of-freedom adjustment of the bicycle frame, significantly improving operational convenience, work efficiency, and customer satisfaction. Furthermore, the use of a telescopic electric cylinder 2 for height adjustment further enhances convenience, saving time and effort.

[0030] In some embodiments, the telescopic electric cylinder 2 is a multi-section electric cylinder, and the motor is mounted on the base 1.

[0031] Since the bicycle mounting stand-alone workstation of this embodiment is placed directly on the ground via its base 1, and most production workshop floors are painted, in order to avoid damaging the ground by using screws to fix the base 1, in some embodiments, the base 1 includes a chassis 11 with a flat bottom surface. The bottom of the telescopic electric cylinder 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.

[0032] Furthermore, due to the device's heavy weight, in some embodiments, the base 1 also includes a movable-fixed switching device to facilitate the movement of the bicycle-mounted independent workstation. See also... Figure 3 The mobile-fixed switching device includes at least three caster assemblies 13, which are mounted on a support frame 12. The bottom of the support frame 12 is fixedly connected to the chassis 11.

[0033] In some embodiments, the caster assembly 13 includes a fixed base 136, a support foot 137, a bracket 131, a roller 132 movably mounted on the bracket 131, and a first operating mechanism for driving the roller 132 to rise and fall. The upper end of the support foot 137 is connected to the fixed base 136, and the bottom surface of the support foot 137 is flush with the bottom surface of the chassis 11. One side of the bracket 131 is connected to the fixed base 136, and the fixed base 136 has multiple fixing holes. The caster assembly 13 can be mounted on the support frame 12 through the fixing holes and bolts. The first operating mechanism can switch the roller 132 between a first position and a second position. When the roller 132 is in the first position, the bottom surface of the roller 132 is higher than the bottom surface of the chassis 11; when the roller 132 is in the second position, the bottom surface of the roller 132 is lower than the bottom surface of the chassis 11.

[0034] In an exemplary embodiment, such as Figures 4 to 6 As shown, the first operating mechanism includes a pedal 133, a first connecting rod 134, and a spring 135. The pedal 133 is rotatably mounted on the bracket 131. The lower end of the first connecting rod 134 is rotatably connected to the axle of the roller 132, and the upper end of the first connecting rod 134 is rotatably connected to the pedal 133. The two ends of the spring 135 are respectively connected to the bracket 131 and the first connecting rod 134.

[0035] When pedal 133 rotates in both directions, it can push or pull the first link 134 to switch roller 132 between a first position and a second position. When roller 132 is in the first position, its bottom surface is higher than the bottom surface of chassis 11; when roller 132 is in the second position, its bottom surface is lower than the bottom surface of chassis 11. When roller 132 switches from the first position to the second position, the length of spring 135 shortens; when roller 132 switches from the second position to the first position, the length of spring 135 lengthens. When roller 132 is in the first position, spring 135 applies a pulling force to the first link 134, allowing roller 132 to overcome gravity and remain in the first position; while when roller 132 is in the second position, spring 135 applies a pulling force to the first link 134 to prevent the first link 134 from rotating, thus keeping roller 132 in the second position.

[0036] In some embodiments, the bracket 131 includes two side plates 1311, each side plate 1311 having an axle guide hole 1312 adapted to the axle of the roller 132. The roller 132 is located between the two side plates 1311, and the two ends of the axle are respectively installed in the axle guide hole 1312 of one of the side plates 1311. The axle can move up and down within the axle guide hole 1312, thereby adjusting the vertical position of the roller 132. In an exemplary embodiment, the axle guide hole 1312 is a circular slot, and the axle can slide up and down along the axle guide hole 1312. When the roller 132 switches from a first position to a second position, the axle slides from the upper end of the axle guide hole 1312 to the lower end of the axle guide hole 1312; when the roller 132 switches from the second position to the first position, the axle slides from the lower end of the axle guide hole 1312 to the upper end of the axle guide hole 1312.

[0037] In some embodiments, the two ends of the first shaft 138 are respectively installed in the holes of one of the side plates 1311; the pedal 133 has ear plates on both sides, and the two ends of the first shaft 138 are respectively installed in the holes of the two ear plates, realizing the rotatable connection between the pedal 133 and the bracket 131; correspondingly, there are two first connecting rods 134, and the two ear plates of the pedal 133 are rotatably connected to one of the first connecting rods 134 through the second shaft 139, and the two ends of the axle of the roller 132 are rotatably connected to one of the first connecting rods 134; of course, the wheel of the roller 132 is located between the two first connecting rods 134. Since there are two first connecting rods 134, there are also two corresponding springs 135, and the two springs 135 are respectively connected to one of the first connecting rods 134.

[0038] To facilitate the operation of the pedal 133, in some embodiments, the bracket 131 is rotatably connected to the fixed base 136, allowing the bracket 131 to rotate relative to the fixed base 136 in the horizontal plane, thus facilitating the adjustment of the pedal 133's orientation. There are many ways to achieve this rotatable connection between the bracket 131 and the fixed base 136, and those skilled in the art can design it appropriately as needed. For example, the bracket 131 may have a circular hole 14, through which it fits loosely onto the fixed base 136, achieving a rotatable connection. Preferably, the support foot 137 is coaxial with the circular hole 14, meaning the bracket 131 can rotate 360° around the support foot 137 in the horizontal plane. Preferably, the support foot 137 is located at the center of the clearance hole 14.

[0039] In some embodiments, the caster assembly 13 can be moved directly above the chassis 11. Therefore, the chassis 11 has clearance holes 14 corresponding to the position of each caster assembly 13 for the roller 132 and support foot 137 to pass through. The lower end of the support foot 137 passes through the clearance hole 14, and the bottom surface of the support foot 137 is flush with the bottom surface of the chassis 11 for contact with the ground. When the roller 132 switches between a first position and a second position, the bottom of the roller 132 passes through the corresponding clearance hole 14.

[0040] It is worth noting that the number of caster assemblies 13 can be set reasonably according to needs. In principle, setting 3 caster assemblies 13 can achieve the effect of balanced support.

[0041] In order to make the mobile-fixed switching device more stable, in some embodiments, the caster assembly of the chassis 11 is evenly arranged on the same circumference around the center of the chassis 11.

[0042] The working principle of the movable-fixed switching device in this embodiment is as follows: Assuming that in the initial state, the roller 132 is in the first position, the bottom surfaces of the chassis 11 and the support foot 137 are in contact with the ground, the bottom surface of the roller 132 is higher than the bottom surfaces of the support foot 137 and the chassis 11, and the roller 132 is not in contact with the ground. Please refer to... Figure 2 , Figure 5 When pedal 133 is pressed, it rotates counterclockwise, pushing the first connecting rod 134 to move. The first connecting rod 134 drives the axle to move downwards along the axle guide hole 1312 to the lower end of the axle guide hole 1312. At the same time, the roller 132 moves down from the corresponding clearance hole 14 on the chassis 11. Driven by the reaction force, the chassis 11 and support feet 137 are lifted off the ground, and the friction between the chassis 11 and support feet 137 and the ground is released. Simultaneously, the roller 132 descends to the second position, and multiple rollers 132 replace the chassis 11 and support feet 137 in contact with the ground. At this point, the entire device can be easily moved. Please refer to [link / reference]. Figure 3 , Figure 6 Once the equipment has moved to the predetermined position, the pedal 133 is pulled upwards or kicked upwards. The pedal 133 rotates clockwise, pulling the first connecting rod 134 to move, causing the axle to move upwards along the axle guide hole 1312 to the upper end of the axle guide hole 1312. At this point, the axle cannot move further upwards, and the roller 132 returns to the first position. Simultaneously, the chassis 11 and support feet 137 re-contact the ground under the equipment's own weight and reaction force, achieving position fixation by the equipment's own weight. Moreover, slippage between the chassis 11 and the ground is unlikely, resulting in good stability and safe use. By operating the pedal 133, the roller 132 can be quickly lowered and raised, eliminating the need for tightening bolts and other operations. This convenient and quick operation improves work efficiency and customer satisfaction.

[0043] It is worth noting that there are many means in the art to achieve the locking of rotatable parts. That is, the horizontal rotation locking mechanism 4 for locking the rotating seat 3 and the vertical rotation locking mechanism 6 for locking the rotating arm 5 can be reasonably designed by those skilled in the art as needed.

[0044] See also Figure 7 , Figure 8 , Figure 9 In an exemplary embodiment, the horizontal rotation locking mechanism 4 includes a gear sleeve 41, a locking block 42, and a second operating mechanism. The locking block 42 has teeth for meshing with the gear sleeve 41. The axis of the gear sleeve 41 is parallel to the vertical plane. The gear sleeve 41 is fixedly connected to the telescopic electric cylinder 2 via an electric cylinder connecting cylinder 21. The locking block 42 is installed in a linear groove in the rotating seat 3 and can move linearly relative to the gear sleeve 41. The locking block 42 has a locked position and an unlocked position. When the locking block 42 is in the locked position, it meshes with the gear sleeve 41. When the locking block 42 is in the unlocked position, it separates from the gear sleeve 41. The second operating mechanism is used to drive the locking block 42 to move linearly relative to the gear sleeve 41, thereby switching the gear sleeve 41 between the locked and unlocked positions.

[0045] In an exemplary embodiment, the rotating seat 3 is sleeved around the gear sleeve 41 and rotatably connected to the gear sleeve 41 via a bearing. In some embodiments, the gear sleeve 41 is fixed to the upper end of the electric cylinder connecting cylinder 21 by screws, and the lower end of the electric cylinder connecting cylinder 21 is fixedly connected to the free end of the telescopic electric cylinder 2.

[0046] It is worth noting that many mechanisms can drive the locking block 42 to achieve linear motion, such as gears and racks, lead screws and nuts, cam mechanisms, etc., which can be reasonably set according to needs by those skilled in the art. In the exemplary embodiment, the second operating mechanism includes a first locking knob 43, a screw of the first locking knob 43, and a rotating handle. The screw of the first locking knob 43 is installed in the threaded hole of the rotating seat 3, and one end of the screw is rotatably connected to the locking block 42, while the other end of the screw is connected to the rotating handle outside the rotating seat 3. Under the constraint of the linear groove, the locking block 42 can only move radially relative to the rotating seat 3. Rotating the handle drives the screw to rotate and move radially inward or outward simultaneously, which in turn drives the locking block 42 to move radially inward or outward, causing the locking block 42 to engage or disengage with the gear sleeve 41. When the locking block 42 engages with the gear sleeve 41, the rotating seat 3 cannot rotate relative to the gear sleeve 41 and the telescopic electric cylinder 2 in the horizontal plane, thus achieving locking. When the locking block 42 disengages from the gear sleeve 41, the rotating seat 3 can rotate freely relative to the gear sleeve 41 and the telescopic electric cylinder 2 in the horizontal plane, thus achieving unlocking.

[0047] See also Figure 7 , Figure 8 , Figure 10In an exemplary embodiment, the vertical rotation locking mechanism 6 includes a brake disc 61 and a locking pin assembly. The brake disc 61 is fixedly connected to the rotating seat 3 by screws, and the rotating arm 5 is rotatably connected to the spindle 50 by bearings. The spindle 50 is installed in the central hole of the brake disc 61, and the two are fixed together by bolts or screws. The locking pin assembly is installed on the brake disc 61 and includes a locking pin 62, a locking pin seat 63, and a locking pin handle 64. The locking pin seat 63 is installed on the brake disc 61, and both the locking pin seat 63 and the brake disc 61 have pin holes 67 that match the locking pin 62. The locking pin 62 is movably installed in the pin holes of the brake disc 61 and the locking pin seat 63 and can rotate relative to the brake disc 61 and move in the axial direction of the spindle 50. A plurality of locking holes 51 are arranged on the same circumference around the spindle 50 on the rotating arm 5. When the rotating arm 5 rotates, the plurality of locking holes 51 can be aligned with the locking pin 62 one by one. The locking pin 62 has a locked position and an unlocked position. When the locking pin 62 is in the locked position, it is inserted into one of the locking holes 51 of the rotating arm 5. When the locking pin 62 is in the unlocked position, it is separated from the rotating arm 5. The locking pin handle 64 is connected to the locking pin 62 and is used to drive the locking pin 62 to move axially relative to the brake disc 61, thereby switching the locking pin 62 between the locked and unlocked positions.

[0048] When the locking pin 62 is in the locked position, it switches to the unlocked position to prevent accidental movement of the locking pin 62. Please refer to [link / reference]. Figure 10 In an exemplary embodiment, the locking pin seat 63 has a slot 65 that matches the locking pin handle 64. One end of the locking pin handle 64 extends into the locking pin seat 63 from the slot 65 and connects to the locking pin 62. The slot 65 allows the locking pin handle 64 to move axially relative to the locking pin seat 63 and can limit the linear displacement of the locking pin 62. There is a locking position 66 at one end of the slot 65. When the locking pin 62 is moved to the locking position by the locking pin handle 64, the locking pin handle 64 is exactly located in the locking position 66. At this time, rotating the locking pin handle 64 can lock the handle rod into the locking position 66. Since the locking position 66 restricts the locking pin handle 64, it can prevent the locking pin 62 from exiting the locking hole 51 of the rotating arm 5, thereby keeping the rotating arm 5 in a locked state.

[0049] When the locking pin 62 is switched to the unlocked position to facilitate the adjustment of the angle of the rotating arm 5, in order to prevent the rotating arm 5 from rotating on its own under its own weight and the weight of the bicycle, the stability of the angle adjustment is increased. In some embodiments, a damping device is also installed on the brake disc 61. The damping device includes a round-headed spring pin 68. Multiple indexing slots 52 matching the round-headed spring pin 68 are arranged on the same circumference around the spindle 50 on the rotating arm 5. The free end of the round-headed spring pin 68 can be inserted into one of the indexing slots 52 under the action of the spring, thereby preventing the rotating arm 5 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 68 to retract, thereby allowing the rotating arm 5 to rotate in the vertical plane. Preferably, the round-headed spring pin 68 is equipped with a damping adjusting nut. The round-headed spring pin 68 and the corresponding damping adjusting nut are installed in the same mounting cavity. The round-headed spring pin 68 includes a ball-headed pin and a spring. The damping adjusting nut is threadedly engaged with the brake disc 61, while the ball-headed pin is clearance-fitted with the mounting cavity. The two ends of the spring act on the ball-headed pin and the damping adjusting nut, respectively. Under the action of the spring, the free end of the ball-headed pin protrudes from the brake disc 61. The damping adjusting nut can limit the movement of the round-headed spring pin 68 and adjust the spring force of the round-headed spring pin 68.

[0050] It is worth noting that the number of indexing slots 52 can be set reasonably. Of course, the edges of the indexing slots 52 should be smoothly transitioned so that the free end of the round-headed spring pin 68 can slide into or out of the indexing slots 52.

[0051] In some embodiments, the number of indexing slots 52 is equal to the number of locking holes 51 and they correspond one-to-one. In an exemplary embodiment, a locking hole 51 is formed by opening a hole at the bottom of each indexing slot 52. When the round-headed spring pin 68 is engaged in a certain indexing slot 52, the locking pin 62 is exactly aligned with one of the locking holes 51. When it is necessary to adjust the angle of the rotating arm 5 in the vertical plane, the locking pin 62 is moved backward away from the rotating arm 5 by the locking pin handle 64, and then a slight rotational force is applied to the rotating arm 5 to drive it to rotate. As the rotating arm 5 rotates, the round-headed spring pins 68 will be engaged in the indexing slots 52 one by one, so the operator will feel a jamming sensation during the rotation operation. Therefore, the jamming sensation between the round-headed spring pin 68 and the indexing slot 52 can be used to determine whether the locking pin 62 is aligned with one of the locking holes 51. When the rotation reaches the appropriate angle, the locking pin 62 is moved forward by the locking pin handle 64 to be inserted into the corresponding locking hole 51 of the rotating arm 5, thereby fixing the angle of the rotating arm 5 in the vertical plane.

[0052] It is worth noting that the number of damping devices can be reasonably set according to needs; preferably, there are at least two damping devices. In an exemplary embodiment, there are three damping devices.

[0053] It is worth noting that the clamping unit 7 can be either an internally tensioned clamping tool or an externally clamping tool. Preferably, the clamping unit 7 is detachably connected to the rotating arm 5, so that different clamping tools can be used according to different vehicle models to meet the needs of different vehicle models.

[0054] In some embodiments of the present invention, such as Figure 11 As shown, the clamping unit 7 includes a clamping assembly and a fixing plate 76. The clamping assembly includes a first clamping arm 71, a second clamping arm 72, a fixing plate 76, and a third operating mechanism. One end of the first clamping arm 71 is a clamping end, and the other end of the first clamping arm 71 is connected to the fixing plate 76. The fixing plate 76 is connected to the rotating arm 5. One end of the second clamping arm 72 is rotatably connected to the first clamping arm 71, and the other end of the second clamping arm 72 is also a clamping end. The clamping ends of the first clamping arm 71 and the second clamping arm 72 are arranged opposite to each other. A clamping block 73 is installed on both the clamping ends of the first clamping arm 71 and the second clamping arm 72. The two clamping blocks 73 are arranged opposite to each other and work together to achieve the clamping function.

[0055] The third operating mechanism is used to drive the clamping block 73 of the second clamping arm 72 to approach and clamp with the clamping block 73 of the first clamping arm 71, and to separate and open. For details, please refer to... Figure 11 The third operating mechanism includes a second link 74 and a handle 75. One end of the handle 75 is a stem, and the other end has a first position and a second position. One end of the second link 74 is movably connected to the first clamping arm 71, and the other end of the second link 74 is rotatably connected to the first position of the handle 75. The second position of the handle 75 is rotatably connected to the second clamping arm 72. Please refer to [link / reference]. Figure 14 , Figure 15 By pushing or pulling the handle 75, the second clamping arm 72 can be rotated in both directions, so that the clamping block 73 of the second clamping arm 72 and the clamping block 73 of the first clamping arm 71 can switch between clamping and opening. The operation is very simple.

[0056] It is worth noting that a connecting hole 762 is provided on the fixing plate 76 to facilitate fixing to the rotating arm 5.

[0057] See also Figure 12 ,to Figure 14 In some embodiments, the first clamping arm 71 has a limiting groove 710, and the handle 75 has a limiting protrusion 750 that is adapted to the limiting groove 710. When clamping is required, the handle 75 is pushed to bring the clamping block 73 of the second clamping arm 72 closer to the clamping block 73 of the first clamping arm 71 and clamp it together, and the limiting protrusion 750 is inserted into the limiting groove 710 to achieve self-locking. When it is required to release, the handle 75 is pulled back to make the limiting protrusion 750 exit from the limiting groove 710 to achieve unlocking, and the clamping block 73 of the second clamping arm 72 separates from the clamping block 73 of the first clamping arm 71 and opens up.

[0058] In other embodiments, the first clamping arm 71 has a limiting protrusion 750, and the handle 75 has a limiting groove 710 that is adapted to the limiting protrusion 750. When the clamping assembly clamps the clamped part, the limiting protrusion 750 is engaged in the limiting groove 710 to achieve self-locking.

[0059] See also Figure 16 In an exemplary embodiment, the second clamping arm 72 is rotatably connected to the first clamping arm 71 via a first pin 791, the handle 75 is rotatably connected to the second clamping arm 72 via a second pin 792, and one end of the second connecting rod 74 is rotatably connected to the first clamping arm 71 via a third pin 793. The first pin 791, the second pin 792, and the third pin 793 are parallel to each other. The limiting groove 710 is located between the first pin 791 and the third pin 793.

[0060] To reduce the weight of the external clamping mechanism, both the first clamping arm 71 and the second clamping arm 72 are plate-like structures. Please refer to [link / reference]. Figure 12 In an exemplary embodiment, the first clamping arm 71 includes a first plate 711, a second plate 712, and a third plate 713. The first plate 711 and the second plate 712 are arranged parallel to each other and spaced apart. The two sides of the third plate 713 are connected to the first plate 711 and the second plate 712, respectively. The second clamping arm 72 is flat and there are two second clamping arms 72. The two second clamping arms 72 are rotatably connected to one of the first plate 711 and the second plate 712, respectively. The two second clamping arms 72 are connected to the same clamping block 73. In an exemplary embodiment, there are limiting grooves 710 on the edges of the first plate 711 and the second plate 712. Correspondingly, there are two limiting protrusions 750 on the handle 75, and the two limiting protrusions 750 are respectively connected to one of the limiting grooves 710.

[0061] In some embodiments, to facilitate connection with the fixing plate 76, the first clamping arm 71 further includes a fourth plate 714. One end of the first plate 711, the second plate 712 and the third plate 713 are connected to the clamping block 73, and the other end of the first plate 711, the second plate 712 and the third plate 713 are all connected to the fourth plate 714. The fourth plate 714 has connecting holes for connection with the fixing plate 76.

[0062] In an exemplary embodiment, the two ends of the first pin 791 are respectively installed in the first shaft holes 715 of the first plate 711 and the second plate 712, and one end of each of the two second clamping arms 72 is opened and connected to the first pin 791; the two ends of the second pin 792 are respectively installed in the second shaft holes in the middle of the two second clamping arms 72; the two ends of the third pin 793 are respectively installed in the third shaft holes 716 of the first plate 711 and the second plate 712. The limiting groove 710 is located in the area between the first shaft hole 715 and the third shaft hole 716. In other embodiments, the two second clamping arms 72 are rotatably connected to one of the first plate 711 and the second plate 712 via a first pin 791.

[0063] As a preferred option, the first plate 711, the second plate 712, the third plate 713, and the fourth plate 714 are manufactured as a single unit.

[0064] See also Figure 13 In some embodiments, one end of the handle 75 is split to form two connecting arms 751, both of which are movably connected to the second clamping arm 72. The edges of the two connecting arms 751 have limiting protrusions 750, which are respectively adapted to the limiting grooves 710 of the first plate 711 and the second plate 712. In other embodiments, the edges of both the first plate 711 and the second plate 712 have limiting protrusions 750, and the edges of the two connecting arms 751 have limiting grooves 710. The limiting protrusions 750 of the first plate 711 and the second plate 712 are respectively adapted to the limiting groove 710 of one of the connecting arms 751.

[0065] In some embodiments, the two connecting arms 751 are rotatably connected to one of the two second clamping arms 72 via a second pin 792; or both ends of the second pin 792 are respectively installed in the shaft holes of the two second clamping arms 72, and one end of each connecting arm 751 is opened and connected to the second pin 792. In an exemplary embodiment, each of the two connecting arms 751 is provided with a first hole 752 adapted to the second pin 792, and the second pin 792 is installed in the first hole 752 of the two connecting arms 751. Based on this, in some embodiments, the second connecting rod 74 is movably connected to the handle 75 at a first position via a support member 754. Both ends of the support member 754 are rotatably connected to one of the connecting arms 751, and the support member 754 has a second hole 755 adapted to the second connecting rod 74, and one end of the second connecting rod 74 is installed in the second hole 755. In an exemplary embodiment, the two ends of the support member 754 are rotatably connected to one of the connecting arms 751 via a fourth shaft 756; the fourth shaft 756 is installed in the shaft hole of the connecting arm 751, and one end of it is threadedly connected to the support member 754.

[0066] In other embodiments, the two ends of the support member 754 are respectively connected to one of the connecting arms 751, and one end of the second connecting rod 74 is rotatably connected to the support member 754, for example, one end of the second connecting rod 74 is loosely fitted on the support member 754.

[0067] In the above embodiment, the handle, connecting rod and clamping arm form a linkage mechanism. When operated by the handle, the movement trajectory and range of motion of the second clamping arm are fixed, which can achieve sizing clamping. When in use, simply push the handle all the way down to achieve the clamping state. When it is necessary to release, simply pull the handle back slightly.

[0068] Since bicycles come in different models, and the frames of different models have different outer diameters, in order to accommodate different models of bicycles, in some embodiments, the length of the second link 74 is adjustable. By adjusting the length of the second link 74, the angle between the first clamping arm 71 and the second clamping arm 72 in the clamped state can be adjusted, thereby accommodating clamped parts of different sizes.

[0069] Optionally, the second link 74 includes an adjusting bolt 741 and an adjusting nut 742. One end of the adjusting bolt 741 is installed inside the adjusting nut 742. By rotating the adjusting nut 742, the depth to which the adjusting bolt 741 is inserted into the adjusting nut 742 is adjusted, thereby changing the length of the second link 74.

[0070] See also Figure 16 In an exemplary embodiment, the second connecting rod 74 includes an adjusting bolt 741, an adjusting nut 742, and a connecting rod 743. One end of the adjusting bolt 741 is connected to a third pin 793, and the other end of the adjusting bolt 741 is threadedly connected to one end of the adjusting nut 742. The other end of the adjusting nut 742 is rotatably connected to one end of the connecting rod 743, and the other end of the connecting rod 743 is connected to a handle 75. Specifically, the other end of the connecting rod 743 is mounted in the second hole 755 of the support member 754 on the handle 75.

[0071] Optionally, the adjusting nut 742 is a fully threaded nut, and the other end of the adjusting nut 742 is threadedly connected to the connecting rod 743.

[0072] When in use, adjust the length of the second link 74 according to the size of the clamped part. After the production of the same model of clamped part is completed, adjust the length of the second link 74 according to the size of the next batch of clamped parts.

[0073] Because different parts of the bicycle frame have tubes at different angles, the clamping assembly can be adjusted in some embodiments to more flexibly hold different parts of the bicycle frame. Specifically, the clamping unit 7 also includes a third locking mechanism, one end of the first clamping arm 71 is mounted on the fixing plate 76 and can rotate in the vertical plane relative to the fixing plate 76, and the third locking mechanism is used to lock the first clamping arm 71.

[0074] In an exemplary embodiment, the third locking mechanism includes a second locking knob 77 and a locking shaft 78. One end of the fixing plate 76 has a shaft hole 761, and one end of the locking shaft 78 is installed in the shaft hole 761 with clearance fitting. The other end of the locking shaft 78 is connected to the end of the first clamping arm 71 away from the clamping block 73. The outer wall of the fixing plate 76 has a threaded hole adapted to the second locking knob 77. The inner end of the threaded hole perpendicularly passes through the shaft hole 761. The second locking knob 77 is installed in the threaded hole. The locking shaft 78 has a plurality of locking holes 781 that are adapted to the inner end of the second locking knob 77 at equal intervals along its circumference. By rotating the second locking knob 77 in both directions, its inner end can be inserted into or removed from the locking holes 781 of the locking shaft 78. When the inner end of the second locking knob 77 is not inserted into the locking hole 781, the clamping assembly can be rotated freely to adjust the angle of the clamping block to adapt to different clamping positions of the frame; when the second locking knob 77 is rotated so that its inner end is inserted into a certain locking hole 781, the locking shaft 78 is locked and the clamping assembly can no longer be rotated freely, thus fixing the angle of the clamping assembly.

[0075] How to use this application: The frame is secured to the bicycle assembly stand using clamping unit 7. The length of telescopic cylinder 2 is adjusted to bring the frame to a suitable height. The rotating base 3 is then rotated to adjust the frame to the appropriate position and locked using the horizontal rotating locking mechanism 4. Components are then installed onto the frame. During this process, the angle of the rotating arm 5 can be adjusted as needed to facilitate the installation of different components. After the complete bicycle assembly is finished, the length of telescopic cylinder 2 is shortened, causing the assembled bicycle to descend to the ground. Clamping unit 7 is then released, completing the unloading process.

[0076] When you need to reassemble a bicycle, simply place all the rollers on the ground to easily move the equipment and the bicycle to be assembled. After moving it to the target location, raise the rollers, and the chassis will re-make contact with the ground. The equipment will then fix its position by its own weight, saving time and effort and making it easy to operate.

[0077] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bicycle-mounted independent workstation, characterized in that, include: Base (1) for placing on the ground; Telescopic electric cylinder (2) connected to the bottom of the base (1); A rotating seat (3) that can rotate horizontally is mounted on the top of the telescopic electric cylinder (2); Horizontal rotary locking mechanism (4) for locking the rotary seat (3); A rotating arm (5) that can rotate vertically is mounted on the rotating base (3); A vertical rotary locking mechanism (6) for locking the rotating arm (5); and Clamping unit (7) mounted on rotating arm (5).

2. The bicycle mounting independent workstation according to claim 1, characterized in that, The base (1) includes a chassis (11) and at least three caster assemblies (13), the ground of the chassis (11) is used to contact the bottom surface, and the caster assemblies (13) are mounted on the chassis (11); The caster assembly (13) includes a bracket (131), a roller (132) movably mounted on the bracket (131), and a first operating mechanism for driving the roller (132) to rise and fall. The first operating mechanism can switch the roller (132) between a first position and a second position. When the roller (132) is in the first position, the bottom surface of the roller (132) is higher than the bottom surface of the chassis (11); when the roller (132) is in the second position, the bottom surface of the roller (132) is lower than the bottom surface of the chassis (11).

3. The bicycle mounting independent workstation according to claim 1, characterized in that, The first operating mechanism includes: A pedal (133) is rotatably mounted on the bracket (131). A first connecting rod (134) rotatably connected at one point to the pedal (133) and rotatably connected at another point to the axle of the roller (132); and Springs (135) at both ends act on the bracket (131) and the first connecting rod (134) respectively. The bracket (131) has two axle guide holes (1312) for matching the lifting and lowering of the roller (132), and the two ends of the axle of the roller (132) are respectively installed in one of the axle guide holes (1312); When the pedal (133) rotates in both directions, the pedal (133) can push or pull the first connecting rod (134) to switch the roller (132) between the first position and the second position. When the roller (132) switches from the first position to the second position, the length of the spring (135) becomes shorter. When the roller (132) is in the first position, the axle is located at the upper end of the axle guide hole (1312), and the spring (135) tends to keep the roller (132) in the first position. When the roller (132) is in the second position, the axle is located at the lower end of the axle guide hole (1312), and the spring (135) tends to keep the roller (132) in the second position.

4. The bicycle mounting independent workstation according to claim 2 or 3, characterized in that, The caster assembly (13) also includes a fixed base (136) and a support foot (137). The fixed base (136) is connected to the chassis (11) through a support frame (12). The upper end of the support foot (137) is connected to the fixed base (136), and the bottom surface of the support foot (137) is flush with the bottom surface of the chassis (11). The bracket (131) is connected to the fixed base (136).

5. The bicycle mounting independent workstation according to claim 4, characterized in that, The bracket (131) is rotatably connected to the fixed seat (136), and the bracket (131) can rotate in the horizontal plane with the supporting foot (137) as the center.

6. The bicycle mounting independent workstation according to claim 1, 2, 3 or 5, characterized in that, The chassis (11) has clearance holes (14) for the rollers (132) to pass through at the position corresponding to each caster assembly (13). When the rollers (132) switch between the first position and the second position, the bottom of the rollers (132) passes through the chassis (11) through the corresponding clearance holes (14).

7. The bicycle mounting independent workstation according to claim 1, 2, 3 or 5, characterized in that, The clamping unit (7) includes a clamping assembly, which includes: A first clamping arm (71) with a clamping block (73) at one end and a rotating arm (5) at the other end. A second clamping arm (72) has one end rotatably connected to the first clamping arm (71) and the other end has a clamping block (73). The clamping block (73) of the first clamping arm (71) and the clamping block (73) of the second clamping arm (72) are arranged opposite to each other. A second link (74) is movably connected at one end to the first clamping arm (71); and A handle (75) is movably connected to the middle of the second clamping arm (72) at one point and movably connected to the other end of the second connecting rod (74) at another point. By pushing and pulling the handle (75), the second clamping arm (72) can be driven to rotate in the forward and reverse directions, so that the clamping block (73) of the second clamping arm (72) and the clamping block (73) of the first clamping arm (71) can switch between clamping and opening.

8. The bicycle mounting independent workstation according to claim 7, characterized in that, In the first clamping arm (71) and the handle (75), one has a limiting groove (710), and the other has a limiting protrusion (750) that is adapted to the limiting groove (710). When clamping is required, push the handle (75) to bring the clamping block (73) of the second clamping arm (72) and the clamping block (73) of the first clamping arm (71) together and clamp them together, and the limiting protrusion (750) can be inserted into the limiting groove (710) to achieve self-locking; when it is necessary to release, pull back the handle (75) to allow the limiting protrusion (750) to exit from the limiting groove (710) to achieve unlocking.

9. The bicycle mounting independent workstation according to claim 7, characterized in that, The length of the second link (74) is adjustable.

10. The bicycle mounting independent workstation according to claim 7, characterized in that, The clamping unit (7) further includes a fixing plate (76) and a third locking mechanism. The fixing plate (76) is fixedly connected to the rotating arm (5). The other end of the first clamping arm (71) is mounted on the fixing plate (76) and can rotate in the vertical plane relative to the fixing plate (76). The third locking mechanism is used to lock the first clamping arm (71).

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