A detachable wheel carrier structure with an adaptive wheel hub

Abstract

The present invention discloses a detachable wheel carrier structure with an adaptive wheel core, aiming to provide a detachable wheel carrier structure with an adjustable wheel carrier and good adaptability. It includes a mounting frame. Above the mounting frame, there are mounting bolts for connecting to the vehicle body. Below the mounting frame, there is a straight rack. The straight rack is connected to two gears. The gears are connected to a mounting plate. The mounting plate is slidably connected to the mounting frame. The gears are hinged with connecting plates. The ends of the two connecting plates are hinged and detachably connected to the wheel core. A limit pin is slidably connected between adjacent teeth of the gear, and the limit pin corresponds to the straight rack. The beneficial effects of the present invention are as follows: By adjusting the distance between the two gears and their positions on the straight rack, the height between the wheel core and the vehicle body can be adjusted to ensure that the vehicle body is level when different wheel cores are installed on the connecting plate, making the adaptability stronger; when the limit pin enters the limit hole, the action of limiting and locking the gear is realized, ensuring that the wheel carrier can work stably after the adjustment of the gear; the setting of the lever facilitates the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of casters, and particularly to a detachable wheel frame structure with an adaptive wheel core. Background Art

[0002] Casters are widely used in production, and they can help people move objects conveniently. A caster consists of a wheel frame and a wheel core. In the existing ones, the wheel frame and the wheel core are mostly fixed and cannot be adjusted according to the size of the wheel core. When using spare parts, the sizes of the wheel cores may be different, resulting in the vehicle body being uneven when the caster is installed on the vehicle body, and the vehicle cannot run well. Therefore, it is necessary to design an adjustable and detachable wheel frame to adapt to different wheel cores and ensure normal functions. Summary of the Invention

[0003] The present invention is to overcome the deficiencies in the prior art that the wheel frame cannot be adjusted and has poor adaptability, and provides a detachable wheel frame structure with an adaptive wheel core, in which the wheel frame is adjustable and has good adaptability.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A detachable wheel frame structure with an adaptive wheel core, including a mounting frame. Above the mounting frame, there are mounting bolts for connecting with the vehicle body. Below the mounting frame, there is a straight rack. The straight rack is connected with two gears. The gears are connected with mounting plates. The mounting plates are slidably connected with the mounting frame. The gears are hinged with connecting plates. The ends of the two connecting plates are hinged and detachably connected with a wheel core. A limiting pin is slidably connected between adjacent teeth of the gear, and the limiting pin corresponds to the straight rack.

[0006] The mounting bolts on the mounting frame are used to connect with the vehicle body. A straight rack is arranged below the mounting frame. At both ends of the straight rack, gears are meshingly connected respectively. The gears are hinged with the mounting plates. The mounting plates are slidably connected with the mounting frame to ensure that the gears and the straight rack are in a connected state and play a connecting role. The gears are hinged with the connecting plates. The ends of the two connecting plates are hinged and connected with a wheel core. The two connecting plates and the straight rack form a triangle. By adjusting the meshing action between the gears and the straight rack, the angle between the connecting plates and the straight rack can be changed. When the two gears approach each other, the included angle between the connecting plates and the straight rack becomes larger, so that the height between the wheel core and the vehicle body increases. Through this adjustment, when using wheel cores of different sizes to be installed on the vehicle body, the vehicle body can be kept horizontal, the functions can be ensured to be normal, and the vehicle can run normally. A limiting pin is slidably connected between adjacent teeth of the gear. The limiting pin can be inserted into the teeth of the straight rack for limiting to ensure that it will not change after the height is adjusted well and to ensure stability.

[0007] Preferably, the mounting bracket is provided with a sliding groove, the upper end of the mounting plate is connected with a sliding rod, the lower end of the mounting plate is hinged to a gear, and the sliding rod is slidably connected with the sliding groove. The upper end of the mounting plate is provided with a sliding rod, which can slide in the sliding groove. At the same time, the sliding rod plays a role in suspending the gear, ensuring that the gear and the straight rack are in a meshed state and will not disengage, and ensuring the adjustment function of the gear.

[0008] Preferably, a relief hole is arranged between adjacent teeth of the gear, the relief hole is sleeved with a limit pin, a limit hole is arranged on the tooth end face of the straight rack, and the limit pin is connected with the limit hole. The limit pin passes through the relief hole and enters the limit hole, so that the gear and the straight rack will not move relatively, playing a role of limit locking, ensuring that the gear will not move after the position of the gear is adjusted, and ensuring the stability of the function.

[0009] Preferably, a limit plate is arranged in the middle of the limit pin, and a spring is connected between the limit plate and the lower end face of the relief hole. The two ends of the spring are respectively connected with the limit plate and the lower end face of the relief hole. When the gear is not in the limit locking state, the elastic force of the spring can retract the limit pin into the relief hole, realizing the adjustable function of the gear.

[0010] Preferably, the gear is sleeved with a fixing ring, the fixing ring is sleeved with a gear shaft, the gear shaft is connected with a connecting plate, an annular groove is arranged on the side surface of the fixing ring, a rotating ring is connected with the annular groove, a plurality of fixing blocks are connected to the outer side wall of the rotating ring, the fixing blocks are wedge-shaped blocks, and the fixing blocks correspond to the limit pins. The fixing ring is sleeved with the inner wall of the gear. An annular groove is arranged on the side wall of the fixing ring, and the rotating ring is sleeved on the annular groove. The rotating ring can rotate in the annular groove. A plurality of fixing blocks are arranged on the outer side surface of the rotating ring, and the fixing blocks are wedge-shaped. A relief groove is arranged on the inner wall of the gear, and the relief groove plays a role of making way. The fixing blocks can slide in the relief groove under the rotating action of the rotating ring. Under the rotating action of the rotating ring, the fixing blocks can contact the limit pins and push the limit pins out, so that the limit pins enter the limit holes, realizing the action of limiting and locking the gear, and ensuring that the wheel frame can work stably after the gear is adjusted.

[0011] Preferably, a push block is arranged on the bottom surface of the limit pin, the cross-sectional shape of the push block is triangular, and the inclined surface of the push block corresponds to the inclined surface of the fixing block. The push block is in contact with the fixing block and can push the limit pin out. The cross-section of the push block is triangular, so that it can interact better with the fixing block when contacting, complete the pushing-out action, and facilitate the operation.

[0012] Preferably, an arc-shaped groove is arranged on the end face of the fixing ring, a dial rod is connected with the rotating ring, and the dial rod is slidably connected with the arc-shaped groove. The dial rod is used to adjust the rotating action of the rotating ring, which is convenient for operation.

[0013] Preferably, limit blocks are provided at both ends of the arc groove, and the limit blocks correspond to the shifting rod. The limit blocks are used to limit the shifting rod to prevent the shifting rod from moving and ensure the stability of the gear after adjustment.

[0014] Preferably, the mounting plate is provided with an adjustment hole, and the adjustment hole corresponds to the lever. The setting of the adjustment hole plays a role of giving way, and the lever can be adjusted conveniently.

[0015] Preferably, the end of the connecting plate is sleeved with a wheel core shaft, the wheel core shaft is sleeved with the wheel core, a connecting nut is provided on the outer side of the wheel core, and the connecting nut is connected with the wheel core shaft. The wheel core shaft is sleeved with the end of the connecting plate to provide a wheel core installation position, and the connecting nut plays a fixing role to ensure the fixation of the wheel core.

[0016] The beneficial effects of the present invention are as follows: the mounting frame and the two connecting plates are connected to form a triangle, which is meshed with a spur rack and two gears. By adjusting the spacing between the two gears and the position on the spur rack, the height of the wheel core and the vehicle body can be adjusted, so that different wheel cores can be installed on the connecting plates to make the vehicle body level, making it more adaptable; the limit pin enters the limit hole to realize the action of the limit locking gear, ensuring that the wheel frame can work stably after the gear is adjusted; the setting of the shift lever is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the present invention;

[0018] Figure 2 It is a partial stereoscopic view of the present invention;

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 yes Figure 2 Sectional view;

[0021] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0022] Figure 6 It is a three-dimensional view of the fixing ring in the present invention.

[0023] In the accompanying drawings,

[0024] 1. Mounting frame, 2. Mounting bolt, 3. Straight rack, 4. Gear, 5. Mounting plate, 6. Connecting plate, 7. Wheel core, 8. Limit pin, 9. Spring, 10. Sliding groove, 30. Limit hole, 40. Relief hole, 41. Fixed ring, 42. Annular groove, 43. Rotating ring, 44. Fixed block, 45. Arc groove, 46. Lever, 47. Limit block, 48. Gear shaft, 50. Slide bar, 51. Adjustment hole, 70. Wheel core shaft, 71. Connecting nut, 80. Limit plate, 81. Pusher block. Detailed implementation manner

[0025] The following further describes the present invention in conjunction with the accompanying drawings and the detailed implementation manner.

[0026] Embodiment 1, as Figure 1 shown, a detachable wheel rack structure with an adaptive wheel core includes a mounting frame 1. Above the mounting frame 1, there is a mounting bolt 2 connected to the vehicle body. Below the mounting frame 1, there is a straight rack 3. The straight rack 3 is connected to two gears 4. The gears 4 are connected to a mounting plate 5. The mounting plate 5 is slidably connected to the mounting frame 1. The gears 4 are hinged with a connecting plate 6, and the ends of the two connecting plates 6 are hinged and detachably connected to a wheel core 7. Between adjacent teeth of the gear 4, there is a limit pin 8 slidably connected. The limit pin 8 corresponds to the straight rack 3.

[0027] As Figure 2 shown, the mounting frame 1 is provided with a sliding groove 10. The upper end of the mounting plate 5 is connected with a slide bar 50. The lower end of the mounting plate 5 is hinged to the gear 4. The slide bar 50 is slidably connected to the sliding groove 10.

[0028] As Figure 2-5 shown, between adjacent teeth of the gear 4, there is a relief hole 40. The relief hole 40 is sleeved with the limit pin 8. On the tooth end face of the straight rack 3, there is a limit hole 30. The limit pin 8 is connected to the limit hole 30.

[0029] As Figure 5 shown, in the middle of the limit pin 8, there is a limit plate 80. Between the limit plate 80 and the lower end face of the relief hole 40, there is a spring 9 connected.

[0030] As Figure 3 、 6 shown, the gear 4 is sleeved with a fixed ring 41. The fixed ring 41 is sleeved with a gear shaft 48, and the gear shaft 48 is connected to the connecting plate 6. On the side of the fixed ring 41, there is an annular groove 42. The annular groove 42 is connected to a rotating ring 43. On the outer wall of the rotating ring 43, there are several fixed blocks 44 connected. The fixed blocks 44 are wedge-shaped blocks. The fixed blocks 44 correspond to the limit pins 8.

[0031] As Figure 5As described above, a push block 81 is provided on the bottom surface of the limit pin 8. The cross-sectional shape of the push block 81 is triangular. The inclined surface of the push block 81 corresponds to the inclined surface of the fixing block 44.

[0032] like Figure 3 , 6 As shown, the end surface of the fixed ring 41 is provided with an arc groove 45. The rotating ring 43 is connected with a lever 46. The lever 46 is slidably connected with the arc groove 45. Limit blocks 47 are provided at both ends of the arc groove 45. The limit blocks 47 correspond to the lever 46. The mounting plate 5 is provided with an adjustment hole 51. The adjustment hole 51 corresponds to the lever 46.

[0033] like Figure 1 As shown, the end of the connecting plate 6 is sleeved with a wheel core shaft 70. The wheel core shaft 70 is sleeved with the wheel core 7. A connecting nut 71 is arranged on the outside of the wheel core 7. The connecting nut 71 is connected with the wheel core shaft 70.

[0034] The working principle of the present invention is: Figure 1-6 As shown, the spare wheel core 7 is installed on the wheel core shaft 70, and the connecting nut 71 is fixed. Keep the vehicle body level, adjust the lever 46 to slide to the left, make the rotating ring 43 rotate to the left, and separate the fixed block 44 from the push block 81. Under the action of the spring 9, the limit pin 8 retracts into the clearance hole 40, and pushes the mounting plate 5 to make the two gears 4 move along the spur rack 3. Adjust to stop when the wheel core 7 contacts the bottom surface, move the lever 46 to the right, and the rotating ring 43 rotates to the right. The fixed block 44 contacts the push block 81, lifts the limit pin 8, and makes the limit pin 8 enter the limit hole 30, completes the limit locking, and ensures the stability of the gear. By adjusting the position of the gear 4 on the spur rack 3, the spare wheel core 7 can contact the bottom surface and keep the vehicle body level, so that the wheel frame structure has stronger adaptability.

Claims

1. A detachable wheel carrier structure with an adaptive wheel hub, characterized in that It includes a mounting bracket. Above the mounting bracket, there are mounting bolts for connecting to the vehicle body. Below the mounting bracket, there is a straight rack. The straight rack is connected to two gears. The gears are connected to a mounting plate. The mounting plate is slidably connected to the mounting bracket. The gears are hinged with connecting plates. The ends of the two connecting plates are hinged and detachably connected to a wheel core. A limit pin is slidably connected between adjacent teeth of the gear. The limit pin corresponds to the straight rack. A relief hole is provided between adjacent teeth of the gear. The relief hole is sleeved with the limit pin. A limit hole is provided on the tooth end face of the straight rack. The limit pin is connected to the limit hole. A fixing ring is sleeved on the gear. A gear shaft is sleeved on the fixing ring. The gear shaft is connected to the connecting plate. An annular groove is provided on the side surface of the fixing ring. The annular groove is connected to a rotating ring. A plurality of fixing blocks are connected to the outer side wall of the rotating ring. The fixing blocks are wedge-shaped blocks. The fixing blocks correspond to the limit pins. An arc-shaped groove is provided on the end face of the fixing ring. The rotating ring is connected to a lever. The lever is slidably connected to the arc-shaped groove. Limit blocks are provided at both ends of the arc-shaped groove. The limit blocks correspond to the lever.

2. The detachable wheel carrier structure of an adaptive wheel core according to claim 1, wherein The mounting bracket is provided with a sliding groove. The upper end of the mounting plate is connected with a sliding rod. The lower end of the mounting plate is hinged with the gear. The sliding rod is slidably connected to the sliding groove.

3. The detachable wheel carrier structure of an adaptive wheel core according to claim 1, characterized in that, A limit plate is provided in the middle of the limit pin. A spring is connected between the limit plate and the lower end face of the relief hole.

4. The detachable wheel carrier structure of an adaptive wheel core according to claim 1, wherein A push block is provided on the bottom surface of the limit pin. The cross-sectional shape of the push block is triangular. The inclined surface of the push block corresponds to the inclined surface of the fixing block.

5. The detachable wheel carrier structure of an adaptive wheel core according to claim 1, characterized in that, The mounting plate is provided with an adjustment hole. The adjustment hole corresponds to the lever.

6. The detachable wheel carrier structure of an adaptive wheel core according to claim 1, characterized in that, A wheel core shaft is sleeved at the end of the connecting plate. The wheel core shaft is sleeved with the wheel core. A connecting nut is provided on the outer side of the wheel core. The connecting nut is connected to the wheel core shaft.

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