CN115972815A - Universal caster with quick-release structure - Google Patents

Abstract

The invention discloses a universal caster with a quick-release structure, which comprises a U-shaped seat, wherein the top of the U-shaped seat is fixedly connected with a vertical shaft, the top of the vertical shaft is provided with an installation plate, a clamping mechanism is arranged between the installation plate and the vertical shaft, the bottom of the U-shaped seat is sleeved with a transverse shaft, a roller wheel is sleeved on the transverse shaft, a special bearing is arranged between the roller wheel and the transverse shaft, two ends of the transverse shaft are provided with clamping sleeves, the clamping sleeves are clamped with the special bearing, and a locking mechanism is arranged between the clamping sleeves and the transverse shaft. Realize the quick joint installation and the dismantlement of vertical scroll through block mechanism, realize the locking of cutting ferrule through locking mechanism, through the cutting ferrule to cross axle and special bearing's connection, realize the roll needs of gyro wheel, it is convenient to install, the gyro wheel bears the friction loss through special bearing when rolling, after local damage, realize the quick dismantlement of cross axle through locking mechanism, satisfy the change needs of special bearing and gyro wheel, quick replacement through block mechanism, be convenient for change U type seat and vertical scroll, quick replacement damages the part as required, need not the instrument and more economic.

Description

Universal caster with quick-release structure

Technical Field

The invention relates to the technical field of universal casters, in particular to a universal caster with a quick-release structure.

Background

Casters is a common machine parts, install the shallow usually, the medical vehicle, furniture, the footing position of mechanical equipment etc. is in order to make things convenient for the removal of object, when the object removes and turns to, need the truckle rotational system to rotate, reach light laborsaving ground effect, present casters is a whole part usually, install in the equipment bottom through the top bolt, casters live time after having prolonged often leads to unable the rotation because of the wearing and tearing reason, the influence removes, need change this moment, present change method need adopt the screwdriver, tools such as spanners carry out the dismouting, the dismouting is loaded down with trivial details, and it is comparatively extravagant to wholly change behind the local damage, to above-mentioned problem, the inventor proposes casters that has rapid disassembly structure and is used for solving above-mentioned problem.

Disclosure of Invention

In order to solve the problems that the conventional universal caster is usually an integral part and is installed at the bottom of equipment through a top bolt, the universal caster cannot rotate due to abrasion after being used for a long time, movement is affected, and replacement is needed at the moment; the invention aims to provide a universal caster with a quick-release structure.

In order to solve the technical problem, the invention adopts the following technical scheme: universal truckle with quick detach structure, including U type seat, the top fixed connection vertical scroll of U type seat, the top of vertical scroll is equipped with the mounting panel, install block mechanism between mounting panel and vertical scroll, the cross axle has cup jointed between the bottom of U type seat, the gyro wheel has been cup jointed on the cross axle, install special bearing between gyro wheel and cross axle, the both ends of cross axle are equipped with the cutting ferrule, cutting ferrule joint special bearing, install locking mechanism between cutting ferrule and cross axle.

Through the technical scheme, realize the quick joint installation and the dismantlement of vertical scroll through block mechanism, realize the locking of cutting ferrule through locking mechanism, to being connected of cross axle and special bearing through the cutting ferrule, realize the roll needs of gyro wheel, it is convenient to install, bear the friction loss through special bearing when the gyro wheel rolls, after local damage, realize the quick dismantlement of cross axle through locking mechanism, satisfy the change needs of special bearing and gyro wheel, quick replacement through block mechanism, be convenient for change U type seat and vertical scroll, quick replacement damages the part as required, need not the instrument and more economical.

In an embodiment of the present invention, the outer walls of the two sides of the mounting plate are fixedly provided with connecting lugs, the connecting lugs are provided with bolt mounting holes, one side of the U-shaped seat is of an arc-shaped concave structure, and the thickness of the roller is equal to the width of the inner cavity of the U-shaped seat.

Through above-mentioned technical scheme, through engaging lug with mounting panel jointing equipment bottom, satisfy the needs of being connected of universal caster and equipment.

An embodiment of preferred, block mechanism is including solid fixed ring and movable ring, bottom one side fixed mounting of mounting panel has solid fixed ring, gu the equal fixed mounting of inner wall of fixed ring and movable ring has the snap ring, the outer wall of vertical scroll is opened there is the draw-in groove, gu fixed ring's opposite side outer wall fixed mounting has the fixed block, it has the slot to open in the fixed block, the opposite side outer wall fixed mounting of movable ring has the picture peg, the outer wall fixed mounting of picture peg has the ratchet, it has the turn trough to open in the fixed block of solid fixed ring's one side is kept away from to the slot, the round pin axle has been cup jointed to the turn trough internal rotation, the epaxial fixed cup joint of round pin has the pawl, and installs the torsional spring between the inner wall of round pin axle and turn trough, picture peg and slot are the arc structure, and the axis of arc structure coincides with the pin joint of solid fixed ring and movable ring, the joint all rotates the bottom of solid fixed ring and movable ring has the ball, and the top of ball sliding fit U type seat, the one end of pawl runs through to the slot and meshes the ratchet, the pawl is the slope structure, the one end that the slot was kept away from to the pawl runs through to the outside of fixed block.

Through the technical scheme, during the installation, the vertical scroll stretches into solid fixed ring inner chamber, the activity ring rotates closure this moment, make snap ring joint draw-in groove, vertical spacing is carried out to the counter shaft, and satisfy the rotation needs of vertical scroll, when the activity ring is closed, the picture peg inserts in the slot, the inclined plane promotion pawl rotation of ratchet this moment, after the activity ring is closed completely, the pawl meshes the ratchet under the torsional spring effect, make the picture peg can't break away from the slot, then the vertical scroll installation is stable, during the dismantlement, press the pawl, make the pawl overcome the torsional spring and rotate, the pawl changes over to the turn-over to inslot, then the slot can be pulled out to the picture peg, realize that the activity ring is opened fast, then the vertical scroll realizes dismantling.

An embodiment of preferred, the special bearing includes the outer lane, the outer lane joint is in the inner chamber of gyro wheel, the inner wall of gyro wheel is opened there are a plurality of first keyways, the outer wall fixed mounting of outer lane has a plurality of first parallel keys, first parallel key joint first keyway, the inner chamber of outer lane is equipped with the inner circle, the inner circle cup joints on the cross axle, and rolls between the outer wall of inner circle and the inner wall of inner circle and install a plurality of cylindrical roller, the holder has been cup jointed in the outside of cylindrical roller, and the holder is located between the outer wall of outer lane inner wall and outer lane, the internal diameter of inner circle is greater than the external diameter of cross axle, the cross axle includes the optical axis, the optical axis runs through U type seat, the middle part integrated into one piece of optical axis is equipped with protruding section, protruding section cup joints in the inner circle, and the diameter of protruding section is less than the internal diameter of inner circle, the cutting ferrule both ends terminal surface of protruding section is opened has the end inclined plane, the both ends inclined plane is cup jointed in the slip at the both ends of optical axis, the cutting ferrule includes the cover body, the cover body cup joints between U type seat and the outer wall of the second fixed keyway, the fixed mounting of the outer wall of the second flat key of the outer wall has a plurality of the flat key groove, the flat key groove is installed and the fixed mounting of the outer wall of the flat key of the second flat key groove.

Through the technical scheme, during installation, the outer lane joint gyro wheel of special bearing, then the gyro wheel is put into between U type seat inner chamber, the cross axle runs through U type seat, and protruding section is located the inner circle inner chamber, then the cutting ferrule inserts U type seat, the cover body runs through U type seat, insert the end and insert between protruding section and inner circle, the extrusion inclined plane receives the extrusion on end inclined plane, realize cover body interference fit U type seat and inner circle, realize the inner circle, the fixed of optical axis and U type seat, the flange card is gone into and is accomodate the inslot this moment, spring compression, it is spacing to the cover body through locking mechanism, keep the installation stable.

An embodiment of preferred, locking mechanism includes the lock sleeve, the lock sleeve thread bush connects the both ends of optical axis, and the lock sleeve closely presses the terminal surface at the flange, the one end outer wall fixed mounting that the lock sleeve is close to the flange has the ring gear, the outer wall fixed mounting of U type seat has the fixed plate, the depression bar has been cup jointed in the slip on the fixed plate, the one end fixed mounting that the depression bar is close to the optical axis has the pinion rack, pinion rack and ring gear looks adaptation, the pressure spring has been cup jointed on the depression bar between pinion rack and the fixed plate, the other end of depression bar runs through fixed plate and fixed mounting has the bulb, the one end outer wall integrated into one piece that the flange was kept away from to the lock sleeve is equipped with a plurality of knobs, the pressure spring is in compression state all the time, the length of pressure spring is greater than the distance of fixed plate to the ring gear.

Through above-mentioned technical scheme, twist on the optical axis with the lock sleeve screw thread through the knob is manual, thereby promote the flange gradually, it is fixed to cup jointing of inner circle and cross axle to keep overlapping the body, the pulling bulb, make the pinion rack keep away from the ring gear, thereby the lock sleeve of being convenient for screws up completely, it is convenient to install, then loosen the bulb, the pressure spring promotes pinion rack meshing ring gear, then the unable rotation of lock sleeve, the installation is firm, when dismantling, the pulling bulb, make pinion rack and ring gear separation, unscrew the lock sleeve again and keep away from the flange, then the supplementary flange that promotes of elasticity of spring, make the body and optical axis separation, convenient to detach.

Compared with the prior art, the invention has the beneficial effects that:

realize the quick joint installation and the dismantlement of vertical scroll through block mechanism, realize the locking of cutting ferrule through locking mechanism, through the cutting ferrule to the connection of cross axle and special bearing, realize the roll needs of gyro wheel, it is convenient to install, bear the friction loss through special bearing when the gyro wheel rolls, after local damage, realize the quick dismantlement of cross axle through locking mechanism, satisfy the change needs of special bearing and gyro wheel, quick replacement through block mechanism, be convenient for change U type seat and vertical scroll, quick replacement damages the part as required, need not the instrument and more economic.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic view of a structure of the engaging mechanism of the present invention.

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention.

Fig. 4 is a schematic view of a partial explosion structure at the locking mechanism of the present invention.

FIG. 5 is an enlarged view of the structure at B in FIG. 4 according to the present invention.

FIG. 6 is an enlarged view of the structure of FIG. 5 at C according to the present invention.

In the figure: 1. a U-shaped seat; 2. a vertical shaft; 3. mounting a plate; 31. connecting lugs; 4. a clamping mechanism; 41. a fixing ring; 42. a movable ring; 43. a card slot; 44. a snap ring; 45. inserting plates; 46. a ratchet; 47. a fixed block; 48. a slot; 49. rotating the groove; 410. a pin shaft; 411. a pawl; 5. a horizontal axis; 51. an optical axis; 52. a convex section; 53. an end bevel; 6. a roller; 7. a locking mechanism; 71. a locking sleeve; 72. a knob; 73. a toothed ring; 74. a fixing plate; 75. a pressure lever; 76. a ball head; 77. a toothed plate; 78. a pressure spring; 8. a special bearing; 81. an inner ring; 82. an outer ring; 83. a cylindrical roller; 84. a first flat key; 85. a first key groove; 9. a ferrule; 91. a sleeve body; 92. an insertion end; 93. extruding the inclined plane; 94. a storage groove; 95. a flange; 96. a spring; 97. a second keyway; 98. second flat key

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment is as follows: as shown in figures 1-6, the invention provides a universal caster with a quick-release structure, which comprises a vertical shaft 2 fixedly connected to the top of a U-shaped seat 1,U type seat 1, a mounting plate 3 arranged on the top of the vertical shaft 2, a clamping mechanism 4,U type seat 1 arranged between the mounting plate 3 and the vertical shaft 2, a cross shaft 5 sleeved between the bottom of the seat 1, a roller 6 sleeved on the cross shaft 5, a special bearing 8 arranged between the roller 6 and the cross shaft 5, clamping sleeves 9 arranged at two ends of the cross shaft 5, the clamping sleeves 9 clamped with the special bearing 8, and a locking mechanism 7 arranged between the clamping sleeves 9 and the cross shaft 5.

Through the technical scheme, realize the quick joint installation and the dismantlement of vertical scroll 2 through block mechanism 4, realize the locking of cutting ferrule 9 through locking mechanism 7, through cutting ferrule 9 to cross axle 5 and special bearing 8's connection, realize the roll needs of gyro wheel 6, it is convenient to install, it undertakes the friction loss through special bearing 8 when gyro wheel 6 rolls, after local damage, realize the quick dismantlement of cross axle 5 through locking mechanism 7, satisfy the change needs of special bearing 8 and gyro wheel 6, quick replacement through block mechanism 4, be convenient for change U type seat 1 and vertical scroll 2, quick replacement damages the part as required, need not the instrument and more economic.

Furthermore, the outer walls of the two sides of the mounting plate 3 are fixedly provided with connecting lugs 31, the connecting lugs 31 are provided with bolt mounting holes, one side of the U-shaped seat 1 is of an arc-shaped concave structure, and the thickness of the roller 6 is equal to the width of the inner cavity of the U-shaped seat 1.

Through above-mentioned technical scheme, satisfy the connected needs of universal caster and equipment with the 3 jointing equipment bottoms of mounting panel through engaging lug 31.

Further, the clamping mechanism 4 comprises a fixed ring 41 and a movable ring 42, a fixed ring 41 is fixedly mounted on one side of the bottom of the mounting plate 3, a movable ring 42 is hinged to one side of the fixed ring 41, a clamping ring 44 is fixedly mounted on inner walls of the fixed ring 41 and the movable ring 42, a clamping groove 43 is formed in the outer wall of the vertical shaft 2, a fixed block 47 is fixedly mounted on the outer wall of the other side of the fixed ring 41, a slot 48 is formed in the fixed block 47, a plug board 45 is fixedly mounted on the outer wall of the other side of the movable ring 42, a ratchet 46 is fixedly mounted on the outer wall of the plug board 45, a rotating groove 49 is formed in the fixed block 47 on one side, away from the fixed ring 41, a pin shaft 410 is rotatably sleeved in the rotating groove 49, a pawl 411 is fixedly sleeved on the pin shaft 410, a torsion spring is mounted between the inner wall of the pin shaft 410 and the inner wall of the rotating groove 49, the plug board 45 and the slot 48 are both arc structures, the axis of the arc structures coincides with a hinge point of the fixed ring 41 and the movable ring 42, balls are rotatably clamped at the bottoms of the fixed ring 41 and the movable ring 42, the balls are slidably attached to the top of the U-shaped seat 1, one end of the pawl 411 penetrates through the slot 48 and engages with the fixed ring 46, the ratchet 411, and the ratchet 411 is of the ratchet 411.

Through the technical scheme, during installation, the vertical shaft 2 extends into the inner cavity of the fixed ring 41, the movable ring 42 rotates to be closed at the moment, the clamping ring 44 is clamped with the clamping groove 43 to vertically limit the vertical shaft 2, the rotating requirement of the vertical shaft 2 is met, when the movable ring 42 is closed, the inserting plate 45 is inserted into the slot 48, the inclined plane of the ratchet 46 pushes the pawl 411 to rotate at the moment, after the movable ring 42 is completely closed, the pawl 411 is meshed with the ratchet 46 under the action of the torsional spring, the inserting plate 45 cannot be separated from the slot 48, the vertical shaft 2 is stably installed, during disassembly, the pawl 411 is pressed, the pawl 411 overcomes the rotation of the torsional spring, the pawl 411 rotates into the rotating groove 49, the inserting plate 45 can pull out the slot 48, the movable ring 42 is quickly opened, and the vertical shaft 2 is disassembled.

Further, the special bearing 8 comprises an outer ring 82, the outer ring 82 is clamped in an inner cavity of the roller 6, a plurality of first key grooves 85 are formed in the inner wall of the roller 6, a plurality of first flat keys 84 are fixedly mounted on the outer wall of the outer ring 82, the first flat keys 84 are clamped in the first key grooves 85, an inner ring 81 is arranged in the inner cavity of the outer ring 82, the inner ring 81 is sleeved on the transverse shaft 5, a plurality of cylindrical rollers 83 are arranged between the outer wall of the inner ring 81 and the inner wall of the inner ring 82 in a rolling mode, a retainer is sleeved on the outer side of each cylindrical roller 83 and located between the inner wall of the outer ring 82 and the outer wall of the outer ring 82, the inner diameter of the inner ring 81 is larger than the outer diameter of the transverse shaft 5, the transverse shaft 5 comprises an optical shaft 51, the optical shaft 51 penetrates through the U-shaped seat 1, a convex section 52 is integrally formed in the middle of the optical shaft 51, the convex section 52 is sleeved in the inner ring 81, the diameter of the protruding section 52 is smaller than the inner diameter of the inner ring 81, end inclined surfaces 53 are formed on the end faces of the two ends of the protruding section 52, the two ends of the optical shaft 51 are slidably sleeved with the ferrule 9, the ferrule 9 comprises a sleeve body 91, the sleeve body 91 is sleeved between the U-shaped seat 1 and the optical shaft 51, an insertion end 92 is integrally formed on one end face of the sleeve body 91, an extrusion inclined surface 93 is formed on the inner wall of the insertion end 92, the insertion end 92 is clamped between the outer wall of the protruding section 52 and the inner wall of the inner ring 81, a flange 95 is integrally formed on the outer wall of the other end of the sleeve body 91, a containing groove 94 is formed in the outer wall of the U-shaped seat 1, a plurality of springs 96 are fixedly mounted on the inner wall of the containing groove 94, a plurality of second flat keys 98 are fixedly mounted on the outer wall of the flange 95, a plurality of second key grooves 97 are formed in the outer wall of the U-shaped seat 1 at the end face of the containing groove 94, and the second flat keys 98 are matched with the second key grooves 97.

Through the technical scheme, during installation, the outer ring 82 of the special bearing 8 is clamped with the roller 6, then the roller 6 is placed between the inner cavities of the U-shaped seat 1, the transverse shaft 5 penetrates through the U-shaped seat 1, the protruding section 52 is located in the inner cavity of the inner ring 81, then the clamping sleeve 9 is inserted into the U-shaped seat 1, the sleeve body 91 penetrates through the U-shaped seat 1, the insertion end 92 is inserted into the space between the protruding section 52 and the inner ring 81, the extrusion inclined plane 93 is extruded by the end inclined plane 53, the sleeve body 91 is in interference fit with the U-shaped seat 1 and the inner ring 81, the optical axis 51 and the U-shaped seat 1 are fixed, the flange 95 is clamped into the accommodating groove 94 at the moment, the spring 96 is compressed, the sleeve body 91 is limited through the locking mechanism 7, and stable installation is kept.

Further, the locking mechanism 7 includes a locking sleeve 71, the locking sleeve 71 is in threaded sleeve connection with two ends of the optical axis 51, the locking sleeve 71 is tightly pressed on the end face of the flange 95, a toothed ring 73 is fixedly installed on the outer wall of one end, close to the flange 95, of the locking sleeve 71, a fixing plate 74 is fixedly installed on the outer wall of the u-shaped seat 1, a pressing rod 75 is slidably sleeved on the fixing plate 74, a toothed plate 77 is fixedly installed at one end, close to the optical axis 51, of the pressing rod 75, the toothed plate 77 is matched with the toothed ring 73, a pressing spring 78 is sleeved on the pressing rod 75 between the toothed plate 77 and the fixing plate 74, the other end of the pressing rod 75 penetrates through the fixing plate 74 and is fixedly installed with a ball head 76, a plurality of knobs 72 are integrally formed on the outer wall of one end, far away from the flange 95, of the locking sleeve 71, the pressing spring 78 is always in a compression state, and the length of the pressing rod 75 is greater than the distance from the fixing plate 74 to the toothed ring 73.

Through the technical scheme, twist on optical axis 51 the manual lock sleeve 71 screw thread of knob 72, thereby promote flange 95 gradually, it is fixed to keep the cover body 91 to cup joint of inner circle 81 and cross axle 5, pulling bulb 76, make pinion rack 77 keep away from ring gear 73, thereby be convenient for lock sleeve 71 to screw up completely, it is convenient to install, then loosen bulb 76, pressure spring 78 promotes pinion rack 77 meshing ring gear 73, then lock sleeve 71 can't rotate, the installation is firm, during the dismantlement, pulling bulb 76, make pinion rack 77 and ring gear 73 separate, unscrew lock sleeve 71 again and keep away from flange 95, then flange 95 is promoted in spring 96's elasticity assistance, make cover body 91 and optical axis 51 separate, convenient to detach.

The working principle is as follows: the mounting plate 3 is connected with the bottom of the equipment through the connecting lug 31 to meet the connection requirement of the universal caster and the equipment, when in installation, the vertical shaft 2 extends into the inner cavity of the fixed ring 41, the movable ring 42 rotates and closes, so that the snap ring 44 is clamped with the clamping groove 43 to vertically limit the vertical shaft 2 and meet the rotation requirement of the vertical shaft 2, when the movable ring 42 is closed, the inserting plate 45 is inserted into the slot 48, the inclined plane of the ratchet 46 pushes the pawl 411 to rotate, when the movable ring 42 is completely closed, the pawl 411 is meshed with the ratchet 46 under the action of the torsion spring, so that the inserting plate 45 cannot be separated from the slot 48, the vertical shaft 2 is stably installed, the outer ring 82 of the special bearing 8 is clamped with the roller 6, then the roller 6 is placed between the inner cavities of the U-shaped seats 1, the transverse shaft 5 penetrates through the U-shaped seats 1, the convex sections 52 are positioned in the inner cavities of the inner rings 81, then the clamping sleeves 9 are inserted into the U-shaped seats 1, the sleeve bodies 91 penetrate through the U-shaped seats 1, the insertion end 92 is inserted between the convex section 52 and the inner ring 81, the extrusion inclined surface 93 is extruded by the end inclined surface 53, the sleeve 91 is in interference fit with the U-shaped seat 1 and the inner ring 81, the optical axis 51 and the U-shaped seat 1 are fixed, at the moment, the flange 95 is clamped into the accommodating groove 94, the spring 96 is compressed, the locking sleeve 71 is manually screwed into the optical axis 51 through the knob 72, so that the flange 95 is gradually pushed, the sleeve 91 is kept in sleeved fixation on the inner ring 81 and the transverse shaft 5, the ball head 76 is pulled, the toothed plate 77 is far away from the toothed ring 73, so that the locking sleeve 71 is completely screwed down conveniently, the installation is convenient and fast, then the ball head 76 is loosened, the pressing spring 78 pushes the toothed plate 77 to be meshed with the toothed ring 73, the locking sleeve 71 cannot rotate, the installation is stable, when the installation is carried out, the ball head 76 is pulled, the toothed plate 77 is separated from the toothed ring 73, the locking sleeve 71 is unscrewed from the flange 95, and the flange 95 is pushed by the elasticity of the spring 96, make the cover body 91 and the separation of optical axis 51, convenient to detach gyro wheel 6 and special bearing 8 press pawl 411 for pawl 411 overcomes the torsional spring and rotates, and pawl 411 changes over to in the turn-trough 49, then the picture peg 45 can pull out slot 48, realizes that loose ring 42 opens fast, then vertical scroll 2 realizes dismantling, and the part is damaged to quick replacement as required, need not the instrument and more economical.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. Universal caster with rapid disassembly structure, including U type seat (1), its characterized in that: the top fixed connection vertical scroll (2) of U type seat (1), the top of vertical scroll (2) is equipped with mounting panel (3), install block mechanism (4) between mounting panel (3) and vertical scroll (2), cross axle (5) have cup jointed between the bottom of U type seat (1), gyro wheel (6) have been cup jointed on cross axle (5), install special bearing (8) between gyro wheel (6) and cross axle (5), the both ends of cross axle (5) are equipped with cutting ferrule (9), cutting ferrule (9) joint special bearing (8), install locking mechanism (7) between cutting ferrule (9) and cross axle (5).

2. The caster with the quick-release structure as claimed in claim 1, wherein the outer walls of both sides of the mounting plate (3) are fixedly provided with connecting lugs (31), the connecting lugs (31) are provided with bolt mounting holes, one side of the U-shaped seat (1) is of an arc-shaped concave structure, and the thickness of the roller (6) is equal to the width of the inner cavity of the U-shaped seat (1).

3. The casters with quick detach structure as claimed in claim 1, characterized in that, the block mechanism (4) includes solid fixed ring (41) and loose ring (42), the equal fixed mounting in inner wall of solid fixed ring (41) and loose ring (42) has snap ring (44), open the outer wall of vertical scroll (2) has draw-in groove (43), the opposite side outer wall fixed mounting of solid fixed ring (41) has fixed block (47), slot (48) have been seted up in fixed block (47), the opposite side outer wall fixed mounting of loose ring (42) has picture peg (45), the outer wall fixed mounting of picture peg (45) has ratchet (46), the fixed block (47) of one side of solid fixed ring (41) has been kept away from in slot (48) has seted up rotary groove (49), the round pin axle (410) has been cup jointed in rotary groove (49) internal rotation, the fixed cover has been gone up to round pin axle (410) pawl (411), and installs the torsional spring between the inner wall of round pin axle (410) and rotary groove (49).

4. The caster with the quick-release structure as claimed in claim 3, wherein the insert plate (45) and the slot (48) are both arc-shaped structures, the axes of the arc-shaped structures coincide with the hinge points of the fixed ring (41) and the movable ring (42), the bottoms of the fixed ring (41) and the movable ring (42) are both rotatably clamped with balls, the balls are slidably attached to the top of the U-shaped seat (1), one end of the pawl (411) penetrates into the slot (48) and engages with the ratchet (46), the pawl (411) is of an inclined structure, and one end of the pawl (411), which is far away from the slot (48), penetrates to the outer side of the fixed block (47).

5. The caster with the quick-release structure as claimed in claim 1, wherein the special bearing (8) comprises an outer ring (82), the outer ring (82) is clamped in the inner cavity of the roller (6), the inner wall of the roller (6) is provided with a plurality of first key slots (85), the outer wall of the outer ring (82) is fixedly provided with a plurality of first flat keys (84), the first flat keys (84) are clamped in the first key slots (85), the inner cavity of the outer ring (82) is provided with an inner ring (81), the inner ring (81) is sleeved on the transverse shaft (5), and a plurality of cylindrical rollers (83) are installed between the outer wall of the inner ring (81) and the inner wall of the inner ring (82) in a rolling manner.

6. The caster with the quick-release structure as claimed in claim 5, wherein the cage is sleeved on the outer side of the cylindrical roller (83), the cage is located between the inner wall of the outer ring (82) and the outer wall of the outer ring (82), and the inner diameter of the inner ring (81) is larger than the outer diameter of the transverse shaft (5).

7. The caster wheel with a quick-release structure as claimed in claim 5, wherein the cross shaft (52) includes an optical axis (51), the optical axis (51) penetrates through the U-shaped base (1), a protruding section (52) is integrally formed in the middle of the optical axis (51), the protruding section (52) is sleeved in the inner ring (81), the diameter of the protruding section (52) is smaller than the inner diameter of the inner ring (81), and end slopes (53) are formed on end faces of two ends of the protruding section (52).

8. The caster with the quick-release structure as claimed in claim 7, wherein the two ends of the optical axis (51) are slidably sleeved with the cutting ferrule (9), the cutting ferrule (9) comprises a sleeve body (91), the sleeve body (91) is sleeved between the U-shaped seat (1) and the optical axis (51), one end face of the sleeve body (91) is integrally formed with an insertion end (92), the inner wall of the insertion end (92) is provided with an extrusion inclined plane (93), the insertion end (92) is clamped between the outer wall of the protruding section (52) and the inner wall of the inner ring (81), the outer wall of the other end of the sleeve body (91) is integrally formed with a flange (95), the outer wall of the U-shaped seat (1) is provided with a storage groove (94), the inner wall of the storage groove (94) is fixedly provided with a plurality of springs (96), the outer wall of the flange (95) is fixedly provided with a plurality of second flat keys (98), the outer wall of the U-shaped seat (1) at the end face of the storage groove (94) is provided with a plurality of second flat keys (97), and the second flat keys (98) are adapted to the second flat keys (97).

9. The caster with the quick release structure as claimed in claim 8, wherein the locking mechanism (7) comprises a locking sleeve (71), the locking sleeve (71) is screwed on two ends of the optical axis (51), and the locking sleeve (71) is tightly pressed on the end surface of the flange (95), a toothed ring (73) is fixedly mounted on the outer wall of one end of the locking sleeve (71) close to the flange (95), a fixing plate (74) is fixedly mounted on the outer wall of the U-shaped seat (1), a compression bar (75) is slidably sleeved on the fixing plate (74), a toothed plate (77) is fixedly mounted on one end of the compression bar (75) close to the optical axis (51), the toothed plate (77) is matched with the toothed ring (73), a compression spring (78) is sleeved on the compression bar (75) between the toothed plate (77) and the fixing plate (74), and a ball head (76) is fixedly mounted on the other end of the compression bar (75) penetrating through the fixing plate (74).

10. The caster with the quick-release structure as claimed in claim 9, wherein the locking sleeve (71) has a plurality of knobs (72) integrally formed on the outer wall of one end away from the flange (95), the compression spring (78) is always in a compressed state, and the length of the compression bar (75) is greater than the distance from the fixing plate (74) to the toothed ring (73).

Images