CN110549793A

CN110549793A - Universal caster

Info

Publication number: CN110549793A
Application number: CN201910933170.8A
Authority: CN
Inventors: 吴义珑; 杨和金; 刘普壮
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2019-12-10

Abstract

The invention relates to the field of casters, in particular to a universal caster which comprises an installation mechanism, wherein the installation mechanism comprises an insertion rod, a check ring, a cover seat, a spring, a pressing plate, a threaded groove, a ring pressing mechanism, a rotating head and a steel ball, the lower end of the installation mechanism is vertically welded at the center of one end of the cover seat, the inside of the cover seat is connected with the pressing plate through the spring, the threaded groove is formed in one end opening, away from the insertion rod, of the cover seat, the threaded groove is in threaded connection with the ring pressing mechanism, the ring pressing mechanism comprises a pressing ring body, a threaded ring, a through hole and a cushion groove, the threaded ring in threaded connection with the threaded groove is arranged at one end of the pressing ring body, and the centers of the pressing ring body. The invention adopts the modes of adding steel balls and utilizing the bearings for connection, so that the friction loss of the universal caster in the rotating and walking processes is greatly increased, the service life of the universal caster is greatly prolonged, and the requirements of the universal caster on manufacturing materials are also reduced.

Description

Universal caster

Technical Field

The invention relates to the field of casters, in particular to a universal caster.

Background

The caster is a general name, and comprises a movable caster, a fixed caster and a movable caster with a brake. The movable caster wheel is also called a universal wheel, and the structure of the movable caster wheel allows 360-degree rotation; the fixed caster is also called a directional caster, and has no rotating structure and can not rotate. Generally, two types of casters are used in combination, such as a cart having two directional wheels at the front and two universal wheels at the rear adjacent the push arm.

In carrying out the handling to precision instruments, need to guarantee that precision instruments can be in a fine plane, guarantee that precision instruments does not appear the skew in handling, the wearing and tearing can not play very much in the department of rotation of universal caster upper end to be connected between support body and the wheel body and also utilize simple axostylus axostyle to erect, equally the wearing and tearing are severe, present universal caster only adopts high resistant wear's material to improve, not only the processing technology in the manufacturing process is complicated, but also generally can't resume after damaging.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a universal caster.

The technical scheme adopted by the invention for solving the technical problems is as follows: a universal caster comprises an installation mechanism, wherein the installation mechanism comprises an insertion rod, a check ring, a cover seat, a spring, a pressing plate, a threaded groove, a pressing ring mechanism, a rotating head and steel balls, the lower end of the installation mechanism is perpendicularly welded at the center of one end of the cover seat, the cover seat is internally connected with the pressing plate through the spring, the threaded groove is formed in one port of the cover seat, which is far away from the insertion rod, and is in threaded connection with the pressing ring mechanism, the pressing ring mechanism comprises a pressing ring body, a threaded ring, a perforation and a cushion groove, one end of the pressing ring body is provided with the threaded ring in threaded connection with the threaded groove, the centers of the pressing ring body and the threaded ring are both provided with the perforation, a cushion groove is formed in one side face of the pressing ring body, which is far away from the threaded ring, the rotating head is clamped between the pressing ring body and the cover seat, a plurality of steel, and one end of the rotating head, which is far away from the steel balls, is fixed on a U-shaped frame, the upper end of the U-shaped frame is connected with a clamping plate mechanism, and the U-shaped frame is connected with a clamping ring mechanism and a wheel body mechanism through a bearing.

The U-shaped frame comprises a top plate, side plates, a shaft hole, a shaft rod, a shaft hole and a shaft rod, wherein the side plates are vertically arranged on two opposite side edges of the top plate, the upper side surface of the top plate and the rotating head are welded, two are arranged between the upper end of each side plate, the shaft holes are arranged at one end and two ends of the shaft rod in a serial mode, the shaft holes are arranged at two ends of the shaft rod in a serial mode, the lower ends of the side plates are arranged at two shaft holes, and the shaft holes are arranged at two ends of the shaft rod in a serial mode.

The clamping plate mechanism comprises an I-shaped plate, a shaft sleeve, a wheel groove, a clamping block, a clamping groove and a pedal, wherein the shaft sleeve is welded on one side edge of the I-shaped plate, the shaft sleeve is sleeved on a shaft rod between two shaft holes, two opposite goose wheel grooves are formed in the I-shaped plate, the pedal is arranged on one side edge of the I-shaped plate far away from the shaft sleeve, the clamping block is welded on the lower side face of the I-shaped plate corresponding to the wheel groove, and the clamping groove is formed in one side face of the clamping block far away from the I-shaped plate.

Specifically, the snap ring mechanism includes ring body and No. two draw-in grooves, No. two draw-in grooves set up on the outer fringe of ring body, the both ends of ring body weld respectively in the center department of two wheel bodies, fixed connection between the center department of ring body and the bearing.

Specifically, the wheel body mechanism comprises a wheel body and a rubber sleeve, the diameter of the wheel body is larger than the maximum diameter of the ring body, and the rubber sleeve is fixed on the outer edge of the wheel body.

Specifically, a plurality of check rings are arranged on the outer side of the insertion rod.

Specifically, the second card slot and the first card slot are mutually matched.

Specifically, the center of the wheel body is fixedly connected with the outer side of the bearing.

specifically, the inner ring of the bearing is fixed on a second shaft lever between two second shaft holes.

The invention has the beneficial effects that:

(1) the spring and the pressing plate are combined in the mounting mechanism, so that when the upper part of the mounting mechanism is stressed, the spring and the pressing plate can reduce the collision force between the pressing plate and the rotating head, the service life is prolonged, and meanwhile, the friction on the rotating head can be reduced by the steel balls in the mounting mechanism, and the abrasion is reduced; and the connecting action of U type frame and installation mechanism, wheel body mechanism, two axostylus axostyles that U type frame set up link together cardboard mechanism and wheel body mechanism respectively to realize realizing the rotation of wheel body mechanism when removing cardboard mechanism, thereby prevent that great vibrations from appearing in the transportation of precision instruments.

(2) The clamping plate mechanism and the clamping ring mechanism are mutually matched to achieve the effect of positioning and braking, and the magnet can be arranged on the lower side of the top plate corresponding to the upper side of the I-shaped plate in the clamping plate mechanism, so that the I-shaped plate can be adsorbed on the top plate when the clamping plate mechanism does not perform braking operation, and the influence on the rotation of a wheel body mechanism connected with the clamping ring mechanism is avoided; the U-shaped frame is connected with the snap ring mechanism and the wheel body mechanism through the bearing, so that abrasion between the second shaft lever and the snap ring mechanism and the wheel body mechanism is greatly reduced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of an overall structure of a caster according to the present invention;

FIG. 2 is a schematic structural view of a pressure ring body of the universal caster according to the present invention;

FIG. 3 is a schematic structural view of a U-shaped frame of a caster according to the present invention;

FIG. 4 is a schematic view of a combined structure of a U-shaped frame and a clamping plate mechanism of the caster;

FIG. 5 is a schematic side plate structure of the caster of the present invention;

FIG. 6 is a schematic structural view of a clamping plate mechanism of the caster wheel of the present invention;

Fig. 7 is a schematic structural diagram of a wheel body mechanism of a universal caster provided by the present invention;

FIG. 8 is a schematic view of a snap ring mechanism and a wheel body mechanism of the caster of the present invention;

Fig. 9 is a schematic view of a plug-in rod structure of a caster according to the present invention.

in the figure: 1. an installation mechanism; 11. a plug rod; 12. a retainer ring; 13. a cover seat; 14. a spring; 15. pressing a plate; 16. a thread groove; 17. a ring pressing mechanism; 18. rotating the head; 19. steel balls; 171. a compression ring body; 172. a threaded ring; 173. perforating; 174. a pad groove; 2. a backing ring; 3. a U-shaped frame; 31. a top plate; 32. a side plate; 33. a first shaft hole; 34. a first shaft lever; 35. a second shaft hole; 36. a second shaft lever; 4. a clamping plate mechanism; 41. i-shaped plates; 42. a shaft sleeve; 43. a wheel groove; 44. a clamping block; 45. a first card slot; 46. a pedal; 5. a snap ring mechanism; 51. a ring body; 52. a second card slot; 6. a bearing; 7. a wheel body mechanism; 71. a wheel body; 72. a rubber sleeve.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 9, the universal caster comprises an installation mechanism 1, wherein the installation mechanism 1 comprises an insertion rod 11, a retainer ring 12, a cover base 13, a spring 14, a pressing plate 15, a threaded groove 16, a ring pressing mechanism 17, a rotating head 18 and steel balls 19, the lower end of the installation mechanism 1 is vertically welded at the center of one end of the cover base 13, the inside of the cover base 13 is connected with the pressing plate 15 through the spring 14, a threaded groove 16 is arranged at one end of the cover base 13 away from the insertion rod 11, the threaded groove 16 is in threaded connection with the ring pressing mechanism 17, the ring pressing mechanism 17 comprises a pressing ring body 171, a threaded ring 172, a through hole 173 and a cushion groove 174, a threaded ring 172 in threaded connection with the threaded groove 16 is arranged at one end of the pressing ring body 171, through holes 173 are arranged at the centers of the pressing ring body 171 and the threaded ring 172, a cushion groove 174 is arranged on one side of the pressing ring body 171 away from the, the clamping has the rotary head 18 between clamping ring body 171 and the lid seat 13, it has a plurality of steel balls 19 to fill between rotary head 18 and the clamp plate 15, the gomphosis has backing ring 2 in the backing groove 174, just the one end that steel ball 19 was kept away from to rotary head 18 is fixed on U type frame 3, the upper end of U type frame 3 is connected with cardboard mechanism 4, U type frame 3 is connected with snap ring mechanism 5 and wheel body mechanism 7 through bearing 6.

The U-shaped frame 3 comprises a top plate 31, side plates 32, a shaft hole 33, a shaft rod 34, a shaft hole 35 and a shaft rod 36, wherein the side plates 32 are vertically arranged on two opposite side edges of the top plate 31, the upper side surface of the top plate 31 is welded with the rotating head 18, the upper ends of the side plates 32 are provided with the shaft hole 33, the shaft holes 33 are connected in series at two ends of the shaft rod 34, the lower ends of the side plates 32 are provided with the shaft holes 35, and the shaft holes 35 are connected in series at two ends of the shaft rod 36, so that connection is facilitated.

Wherein, cardboard mechanism 4 includes I-shaped board 41, axle sleeve 42, race 43, fixture block 44, draw-in groove 45 and footboard 46, the welding has axle sleeve 42 on one side of I-shaped board 41, axle sleeve 42 cup joints No. one axostylus axostyle 34 between two shaft holes 33, be equipped with two relative goose race 43 on the I-shaped board 41, I-shaped board 41 is kept away from and is equipped with footboard 46 on one side of axle sleeve 42, the welding has fixture block 44 on the downside of the I-shaped board 41 that race 43 corresponds, fixture block 44 is kept away from and is equipped with a draw-in groove 45 on one side of I-shaped board 41 to the fixed point brake of being convenient for.

The snap ring mechanism 5 comprises a ring body 51 and a second clamping groove 52, the second clamping groove 52 is arranged on the outer edge of the ring body 51, two ends of the ring body 51 are respectively welded at the centers of the two wheel bodies 71, and the center of the ring body 51 is fixedly connected with the bearing 6 so as to facilitate fixed-point braking.

The wheel body mechanism 7 comprises a wheel body 71 and a rubber sleeve 72, the diameter of the wheel body 71 is larger than the maximum diameter of the ring body 51, and the rubber sleeve 72 is fixed on the outer edge of the wheel body 71, so that the wheel body mechanism can walk and move conveniently.

Wherein, a plurality of retainer rings 12 are arranged on the outer side of the insertion rod 11 so as to facilitate insertion.

the second slot 52 and the first slot 45 are engaged with each other, so as to facilitate fixed-point braking.

Wherein, the center of the wheel body 71 is fixedly connected with the outer side of the bearing 6 so as to reduce the abrasion.

wherein, the inner ring of the bearing 6 is fixed on the second shaft lever 36 between the two second shaft holes 35 to reduce the abrasion.

When in use, the combination of the spring 14 and the pressure plate 15 is adopted in the mounting mechanism 1 designed by the invention, when the upper part is pressed, the two can reduce the collision force between the pressure plate 15 and the rotating head 18, the service life is prolonged, the steel balls 19 in the mounting mechanism can also reduce the friction on the rotating head 18 and reduce the abrasion, the U-shaped frame 3 designed by the invention plays a role of connecting the mounting mechanism 1 with the wheel body mechanism 7, the two shaft rods arranged on the U-shaped frame 3 respectively connect the clamping plate mechanism 4 with the wheel body mechanism 7, the design ensures that the main body connection of the invention is very simple and clear, the technical requirements during assembly are reduced, the clamping plate mechanism 4 designed by the invention is mutually matched with the clamping ring mechanism 5 to play a positioning and braking effect, the lower side of the top plate 31 corresponding to the upper side of the I-shaped plate 41 in the clamping plate mechanism 4 can be provided with a magnet, when the clamping plate mechanism 4 is not in braking operation, the I-shaped plate 41 can be adsorbed on the top plate 31, so that the influence on the rotation of the wheel body mechanism 7 connected with the snap ring mechanism 5 is avoided, the U-shaped frame 3, the snap ring mechanism 5 and the wheel body mechanism 7 are connected through the bearing, the abrasion between the second shaft lever 36 and the snap ring mechanism 5 and the wheel body mechanism 7 is greatly reduced, the friction loss of the universal caster in the rotating and traveling processes is greatly prolonged by adding the steel balls 19 and utilizing the connection mode of the bearing 6, and meanwhile, the requirement of the universal caster on manufacturing materials is reduced.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A universal caster, characterized in that: comprises an installation mechanism (1), wherein the installation mechanism (1) comprises an insertion rod (11), a check ring (12), a cover seat (13), a spring (14), a pressing plate (15), a threaded groove (16), a ring pressing mechanism (17), a rotating head (18) and steel balls (19), the lower end of the installation mechanism (1) is vertically welded at the center of one end of the cover seat (13), the cover seat (13) is connected with the pressing plate (15) through the spring (14), a port of the cover seat (13) far away from the insertion rod (11) is provided with the threaded groove (16), the threaded groove (16) is in threaded connection with the ring pressing mechanism (17), the ring pressing mechanism (17) comprises a pressing ring body (171), a threaded ring (172), a perforation (173) and a cushion groove (174), one end of the pressing ring body (171) is provided with the threaded ring (172) in threaded connection with the threaded groove (16), the center department of clamping ring body (171) and screw ring (172) all is equipped with perforation (173), be equipped with on the side of screw ring (172) is kept away from in clamping ring body (171), centre gripping has swivel head (18) between clamping ring body (171) and lid seat (13), it has a plurality of steel balls (19) to fill between swivel head (18) and clamp plate (15), the gomphosis has backing ring (2) in backing ring (174), just the one end that steel ball (19) were kept away from in swivel head (18) is fixed on U type frame (3), the upper end of U type frame (3) is connected with cardboard mechanism (4), U type frame (3) are connected with snap ring mechanism (5) and wheel body mechanism (7) through bearing (6).

2. The caster according to claim 1, wherein: u type frame (3) include roof (31), curb plate (32), shaft hole (33), axostylus axostyle (34), shaft hole (35) No. two and axostylus axostyle (36) No. two, curb plate (32) set up perpendicularly on the relative both sides of roof (31), weld between the side of going up of roof (31) and rotating head (18), two the upper end of curb plate (32) all is equipped with shaft hole (33) No. two shaft hole (33) concatenates on the both ends of axostylus axostyle (34), two the lower extreme of curb plate (32) all is equipped with shaft hole (35) No. two shaft hole (35) concatenate on the both ends of axostylus axostyle (36) No. two shaft hole (35) concatenate.

3. The caster according to claim 1, wherein: cardboard mechanism (4) are including worker's word board (41), axle sleeve (42), race (43), fixture block (44), draw-in groove (45) and footboard (46), the welding has axle sleeve (42) on one side of worker's word board (41), axle sleeve (42) cup joint on No. one axostylus axostyle (34) between two shaft holes (33), be equipped with two relative goose race (43) on worker's word board (41), worker's word board (41) are kept away from and are equipped with footboard (46) on one side of axle sleeve (42), the welding has fixture block (44) on the downside of worker's word board (41) that race (43) correspond, fixture block (44) are kept away from and are equipped with a draw-in groove (45) on the side of worker's word board (41).

4. the caster according to claim 1, wherein: the snap ring mechanism (5) comprises a ring body (51) and a second clamping groove (52), the second clamping groove (52) is formed in the outer edge of the ring body (51), two ends of the ring body (51) are respectively welded to the centers of the two wheel bodies (71), and the centers of the ring body (51) and the bearing (6) are fixedly connected.

5. The caster according to claim 1, wherein: the wheel body mechanism (7) comprises a wheel body (71) and a rubber sleeve (72), the diameter of the wheel body (71) is larger than the maximum diameter of the ring body (51), and the rubber sleeve (72) is fixed on the outer edge of the wheel body (71).

6. The caster according to claim 1, wherein: a plurality of check rings (12) are arranged on the outer side of the insertion rod (11).

7. The caster according to claim 4, wherein: the second card slot (52) and the first card slot (45) are mutually matched.

8. The caster according to claim 5, wherein: the center of the wheel body (71) is fixedly connected with the outer side of the bearing (6).

9. The caster according to claim 1, wherein: and an inner ring of the bearing (6) is fixed on a second shaft lever (36) between the two second shaft holes (35).