CN211808833U

CN211808833U - Caster with good rotation performance

Info

Publication number: CN211808833U
Application number: CN202020389482.5U
Authority: CN
Inventors: 金昌龙
Original assignee: Ningbo Jiulong Hardware Co ltd
Current assignee: Ningbo Jiulong Hardware Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-10-30
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a caster with good rotation performance, which comprises a caster bracket, a caster tire, a wheel shaft and two rotation structures, wherein each rotation structure comprises a rotating disc, a clamping ring and a plurality of balls, the rotating disc is in a bowl shape, the middle part of the inner bottom surface of the rotating disc is provided with a mounting ring gathered towards the opening direction, the balls are uniformly distributed between the inner wall surface of the bowl shape of the rotating disc and the outer wall surface of the mounting ring around the axis of a rotating disc, the caster bracket comprises a left fixing surface, a right fixing surface and a connecting surface for connecting the left fixing surface and the right fixing surface, the caster tire is rotatably connected between the left fixing surface and the right fixing surface through the wheel shaft, the clamping ring is sleeved on the peripheries of the balls uniformly distributed on the corresponding rotation structures, through holes are formed on the connecting surface, the rotating disc mounting rings in the two rotation structures can be mutually attached through the, the direct contact between the rolling ball and the rotating disc in the rolling process is reduced, the abrasion of the ball is reduced, and the rotation performance of the caster is ensured.

Description

Caster with good rotation performance

Technical Field

The utility model relates to a truckle especially relates to a truckle that rotation performance is good.

Background

The truckle is very extensive in daily life's application, has made things convenient for people's life, the transport of convenient thing. Most of the prior caster wheels increase the rotating performance of a rotating shaft through a ball, but the ball and a shell internally provided with the ball are subjected to rolling friction to cause the internal abrasion of the shell, so that the rotating performance of the caster wheel is deteriorated.

Disclosure of Invention

The utility model aims to solve the technical problem that a truckle that rotation performance is good is provided, and this truckle structure is ingenious, can promote the rotation performance of truckle, increases the life of ball.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a caster with good rotation performance comprises a caster bracket, a caster tire, a wheel axle and two rotation structures, wherein each rotation structure comprises a rotating disc, a clamping ring and a plurality of balls, the rotating disc is a bowl-shaped structure, the middle part of the inner bottom surface of the rotating disc is provided with an installation ring gathered towards an open direction, the balls are uniformly distributed between the inner wall surface of the bowl-shaped structure of the rotating disc and the outer wall surface of the installation ring around the axis of the rotation disc, the caster bracket comprises a left fixed surface, a right fixed surface and a connection surface for connecting the left fixed surface and the right fixed surface, the caster tire is rotatably connected between the left fixed surface and the right fixed surface through the wheel axle, the clamping ring in one rotation structure is clamped between the inner top surface of the corresponding rotating disc and the upside of the connection surface, the clamping ring in the other rotation structure is clamped between the inner top surface of the corresponding rotating disc, the screens ring cover is located corresponding revolution mechanic evenly distributed's ball periphery, connect and go up the trompil hole, two revolution mechanic in rotary disk collar accessible through-hole laminate each other and rotatable for the truckle support.

As the utility model discloses a further improvement, the hexagonal hole that is vertical to link up in the middle part of the rolling disc collar, two rotating-structure laminate through hexagonal rivet and connect, the hexagonal hole with hexagonal rivet phase-match.

As the utility model discloses a further improvement, hexagonal rivet from last down include screw rod portion, connecting portion, card portion of blocking and pin fin portion in proper order, card portion of blocking be with hexagonal hole assorted hexagon, hexagonal rivet is from up running through two rotating-structure down, the top surface of pin fin portion with laminate mutually at the rolling disc bottom of connecting the face downside, card portion of blocking runs through the hexagonal hole of two rotating-structure collars, connecting portion outer loop card is equipped with annular fastener, annular fastener bottom with the rolling disc top of connecting the face upside pastes mutually.

As a further improvement, the annular fastener upper portion is the drum lower part and is the ring, the drum equal with the internal diameter of ring with the external diameter phase-match of connecting portion, annular fastener drum lower part and ring correspond the department and seted up the breach.

Compared with the prior art, the invention has the following beneficial effects: adopt the screens ring as the midbody of fixed ball home range, the screens ring has played the effect of buffering to the ball, has reduced the ball and has rolled the in-process and the direct contact of rolling, thereby has reduced the wearing and tearing of ball and has guaranteed the rotation performance of truckle.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the assembly of the turntable, the detent ring and the caster bracket;

FIG. 3 is a schematic view of a rotating disk structure;

FIG. 4 is a schematic view of a loop fastener construction;

FIG. 5 is a schematic view of a hexagonal rivet structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 5: a caster with good rotation performance comprises a caster bracket 1, caster tires 2, a wheel shaft 3 and two rotation structures 4, wherein each rotation structure 4 comprises a rotating disc 41, a clamping ring 42 and a plurality of balls 43, the rotating disc 41 is bowl-shaped, the middle part of the inner bottom surface of the rotating disc 41 is provided with a mounting ring 411, the balls 43 are uniformly distributed between the bowl-shaped inner wall surface of the rotating disc and the outer wall surface of the mounting ring 411 around the axis of the rotating disc 41, the caster bracket 1 comprises a left fixing surface 11, a right fixing surface 12 and a connecting surface 13 connecting the left fixing surface 11 and the right fixing surface 12, the caster tires 2 are rotatably connected between the left fixing surface 11 and the right fixing surface 12 through the wheel shaft 3, the clamping ring 42 in one rotation structure 4 is clamped between the inner top surface and the upper side of the connecting surface of the corresponding rotating disc 41, the clamping ring 42 in the other rotation structure 4 is clamped between the inner top surface and the lower side of the connecting surface of the corresponding rotating disc 41, connect and go up the trompil hole on the face 13, two rotating-structure 4 in the rotor 41 collar 411 accessible through-holes laminate each other and rotatable for truckle support 1, adopt screens ring 42 as the midbody of fixed ball 43 home range, screens ring 42 has played the effect of buffering to ball 43, has reduced ball 43 and has rolled the in-process and rotor 41's direct contact, thereby has reduced the wearing and tearing of ball 43 and has guaranteed the rotation performance of truckle.

The middle part of the mounting ring 411 of the rotating disc 41 is a vertical through hexagonal hole, the two rotating structures 4 are connected through the hexagonal rivet 5, and the hexagonal hole is matched with the hexagonal rivet 5.

Hexagonal rivet 5 is from last down including screw portion 51 in proper order, connecting portion 52, card portion 53 and pin head 54 of blocking, card portion 53 be with hexagonal hole assorted hexagon, hexagonal rivet 5 is from up running through two rotating-structure 4 down, the top surface of pin head 54 is laminated with the rolling disc 41 bottom of being connected the face 13 downside, card portion 53 runs through the hexagonal hole of two rotating-structure 4 collar 411, connecting portion 52 outer ring card is equipped with annular fastener 6, 6 bottoms of annular fastener are laminated with the rolling disc 41 top of being connected the face 13 upside, the rolling disc 41 of being connected face 13 both sides of truckle support 1 uses through hexagonal rivet 5 and annular fastener 6's cooperation to fasten, make two rolling disc 4 relative position remain throughout and rivet 5 nails unanimously with the hexagonal, do not take place to rotate and rotate along with truckle support 1.

The upper part of the annular fastener 6 is a cylinder, the lower part of the cylinder is a circular ring, the inner diameter of the cylinder is equal to that of the circular ring, the outer diameter of the connecting part is matched with that of the circular ring, and notches are formed in the lower part of the cylinder of the annular fastener 6 and the corresponding part of the circular ring.

The internal diameter of drum and ring equals slightly to be less than the external diameter of connecting portion, press down it after aiming at screw portion top surface 51 of hexagonal rivet 5 with annular fastener 6, because screw portion 51 can be located to the partly cover that has the breach of breach in the breach, do not have the open-ended part and can take place slightly expanding outward under the effect of pushing down pressure, but have certain deformation power that restores to inside, thereby make whole annular fastener 6 card establish on screw portion 51, press down annular fastener 6 to hexagonal rivet 5's connecting portion 52 always, realize two fixed and rotatable coupling in truckle support 1 of rotating-structure 4.

The bottom of an object needing the caster is provided with a mounting hole matched with the screw part 51 of the hexagonal rivet of the caster, and the screw part 51 is screwed up by using a bolt matched with the screw part 51 after passing through the mounting hole, so that the installation of the caster is realized.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a truckle that rotation performance is good, includes truckle support, truckle tire, shaft and two rotating-structure, its characterized in that: the rotating structure comprises a rotating disc, a clamping ring and a plurality of balls, the rotating disc is in a bowl shape, the middle part of the inner bottom surface of the rotating disc is provided with a mounting ring gathered towards the opening direction, the balls are uniformly distributed between the inner wall surface of the bowl shape of the rotating disc and the outer wall surface of the mounting ring around the axis of the rotating disc, the caster bracket comprises a left fixing surface, a right fixing surface and a connecting surface for connecting the left fixing surface and the right fixing surface, a caster tire is rotatably connected between the left fixing surface and the right fixing surface through a wheel shaft, the clamping ring in one rotating structure is clamped between the inner top surface of the corresponding rotating disc and the upper side of the connecting surface, the clamping ring in the other rotating structure is clamped between the inner top surface of the corresponding rotating disc and the lower side of the connecting surface, the clamping ring is sleeved on the periphery of the balls uniformly distributed in the corresponding rotating, two rotating-disk installation rings in rotating structure accessible through-hole laminate each other and rotatable for the truckle support.

2. The caster with good rotation performance as claimed in claim 1, wherein: the middle part of the rotating disc mounting ring is a vertical through hexagonal hole, the two rotating structures are attached and connected through the hexagonal rivet, and the hexagonal hole is matched with the hexagonal rivet.

3. The caster with good rotation performance as claimed in claim 2, wherein: hexagonal rivet from last down includes screw rod portion, connecting portion, card portion and pin fin portion in proper order, card portion be with hexagonal hole assorted hexagon, hexagonal rivet from up running through two rotating-structure down, the top surface of pin fin portion with the rolling disc bottom of connecting the face downside is laminated mutually, card portion runs through the hexagonal hole of two rotating-structure collars, connecting portion outer loop card is equipped with annular fastener, annular fastener bottom with the rolling disc top of connecting the face upside pastes mutually.

4. A caster with good rotation performance as claimed in claim 3, wherein: the upper portion of the annular fastener is a cylinder, the lower portion of the annular fastener is a circular ring, the inner diameter of the cylinder is equal to that of the circular ring, the inner diameter of the cylinder is matched with the outer diameter of the connecting portion, and notches are formed in the lower portion of the cylinder of the annular fastener and in the positions corresponding to the circular rings.