CN218750109U

CN218750109U - Universal caster

Info

Publication number: CN218750109U
Application number: CN202222563415.2U
Authority: CN
Inventors: 刘丽; 江慧婷; 陈锡保; 金立国
Original assignee: Dongguan Yiheda Automation Co Ltd
Current assignee: Dongguan Yiheda Automation Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-03-28
Anticipated expiration: 2032-09-27

Abstract

The utility model relates to a universal caster, which comprises a bracket, a single wheel, a steering mechanism and a braking mechanism, wherein the single wheel is arranged below the bracket; arrestment mechanism includes the brake support frame, the footboard, universal brake block and brake shell fragment, the brake support frame is articulated with the first pivot of wearing to locate on the support, the footboard passes through the second pivot and is articulated with the brake support frame, on first pivot was located to universal brake block cover, a tip of universal brake block and the lower extreme butt of footboard, another tip of universal brake block is used for being connected with steering mechanism, the brake shell fragment sets up in the lower extreme of universal brake block, the one end of brake shell fragment is provided with the friction braking portion that is used for the outer surface contact with the single round, the friction braking portion is bent by the one end downwardly extending of brake shell fragment and is the cambered surface form. The universal caster has the advantages of ingenious structural design, simple and convenient operation, good braking performance and high stability.

Description

Universal caster

Technical Field

The utility model relates to a universal caster technical field, concretely relates to universal caster.

Background

The universal caster wheel is matched with a single wheel on a support capable of rotating by 360 degrees to realize the movement in any direction, and due to the characteristic of flexible turning, the universal caster wheel is widely applied to a plurality of fields such as mechanical equipment, medical equipment, logistics equipment, storage, turnover vehicles and the like.

The caster comprises a caster bracket, a roller arranged on the caster bracket and a mounting seat pivoted on the caster bracket, wherein the caster bracket is also provided with a braking device capable of braking the mounting seat and the roller simultaneously, the braking device enables a pressing wheel brake sheet to generate elastic deformation to bend downwards under the action of a pedal to brake the roller, and the contact mode of the pressing wheel brake sheet and the roller is linear contact in the process, so that the contact area is too small, and the braking performance is easy to be unstable; and the shape of the pinch roller brake sheet is enlarged and the abrasion is fast in the long-term use process, which easily causes the poor braking effect.

Therefore, based on the problem that above-mentioned truckle exists, the utility model provides a structure to arresting gear improves to improve the braking stability ability of truckle.

Disclosure of Invention

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a universal caster, universal caster's structural design is ingenious, and is easy and simple to handle, and brake performance is good and stability is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a universal caster comprises a support, a single wheel, a steering mechanism and a braking mechanism, wherein the single wheel is arranged below the support, the steering mechanism is arranged above the support and connected with the braking mechanism, and the steering mechanism is used for controlling the movement direction of the single wheel;

the utility model discloses a brake mechanism, including brake support frame, footboard, universal brake block and brake shell fragment, brake support frame is articulated with the first pivot of wearing to locate on the support, it is articulated with brake support frame that the footboard passes through the second pivot, on first pivot is located to universal brake block cover, a tip of universal brake block and the lower extreme butt of footboard, another tip of universal brake block is used for being connected with steering mechanism, brake shell fragment sets up in the lower extreme of universal brake block, brake shell fragment's one end is provided with the friction braking portion that is used for the surface contact with the single round, friction braking portion is bent by the one end downwardly extending of brake shell fragment and is the cambered surface form.

Further, steering mechanism includes bottom plate, bearing housing cover, ripples dish, brake disc and fastener, the bottom plate be used for with external equipment's bottom fixed connection, the fastener from top to bottom connects gradually in bottom plate, bearing housing cover, support ripples dish and brake disc, enclose between the top of bearing housing cover and support and establish and form first annular, be provided with a plurality of first steel balls in the first annular, enclose between the top of support and the ripples dish and establish and form the second annular, be provided with a plurality of second steel balls in the second annular.

Furthermore, the brake disc is located at the lower end of the wave disc, and a gasket is arranged between the brake disc and the fastening piece.

Further, universal brake block is including butt portion, pin joint portion and the locking portion that connects gradually, butt portion butt in the lower extreme of footboard, the shaft hole that supplies first pivot to wear to establish is seted up to pin joint portion, pin joint portion extends to the one end of locking portion and is provided with the inserted sheet, the inserted sheet butt in the upper end of first pivot, locking portion be provided with the latch of brake disc joint braking.

Furthermore, a clamping groove is arranged between the abutting part and the pivoting part and used for being clamped with the brake elastic sheet.

Furthermore, a damping gasket is arranged below one end, close to the support, of the pedal.

Further, the friction braking portion is provided with a U-shaped groove.

Furthermore, the middle part of the brake elastic sheet protrudes downwards to form a brake boss, and the brake boss is used for contacting with the outer surface of the single wheel.

Furthermore, buckles are convexly arranged on two sides of the middle of the brake elastic sheet upwards and are used for being clamped with the clamping grooves.

Further, the single wheel includes, locates two bearings in the wheel body and installs respectively in two wheel hub of wheel body both sides, the single wheel pass in proper order through the connecting piece wheel hub and bearing and with support fixed connection, be provided with the spacer sleeve between two bearings, two wheel hub support each other to lean on and overlap respectively locate corresponding bearing on, two wheel hub's periphery is located to the wheel body cover.

The beneficial effects of the utility model reside in that: the utility model discloses a universal caster, including support, rotation connect in the single round of support, be used for controlling the steering mechanism of single round direction of motion and be used for the arrestment mechanism of single round braking, arrestment mechanism's structural design is ingenious wherein, including brake support frame, footboard, universal brake block and these four essential elements of brake shell fragment, universal brake block is connected with steering mechanism and is used for the direction of stopping, and the brake shell fragment carries out friction braking with the surface contact of single round for the wheel of stopping, and then realize universal caster's dual function of stopping, brake performance is good and stability is high. And the friction braking part of the brake elastic sheet is bent downwards to form an arc surface, so that the braking contact area between the brake elastic sheet and the outer surface of the single wheel is increased remarkably, and the braking effect and the braking stability of the universal caster can be effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure of the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a schematic structural view of the brake spring of the present invention.

Fig. 5 is a schematic structural view of another angle of the brake spring of the present invention.

Fig. 6 is a schematic structural view of the universal brake pad of the present invention.

The reference signs are: 1. a support; 2. single-wheel; 200. a wheel body; 201. a bearing; 202. a hub; 203. a connecting member; 204. a spacer sleeve; 3. a brake support frame; 4. a pedal; 5. a universal brake pad; 500. an abutting portion; 501. a pivot part; 502. a stopper portion; 503. a shaft hole; 504. inserting sheets; 505. clamping teeth; 506. a card slot; 6. a brake spring plate; 600. a friction braking section; 601. a U-shaped groove; 602. braking the boss; 603. buckling; 7. a first rotating shaft; 8. a second rotating shaft; 9. a base plate; 10. a bearing housing cover; 11. a wave disc; 12. a brake disc; 13. a fastener; 14. a first steel ball; 15. a second steel ball; 16. a gasket; 17. shock-absorbing pad.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1 to 6, which are not intended to limit the present invention.

Examples

As shown in fig. 1-6, a universal caster comprises a support 1, a single wheel 2, a steering mechanism and a braking mechanism, wherein the single wheel 2 is mounted below the support 1, the steering mechanism is mounted above the support 1 and connected with the braking mechanism, and the steering mechanism is used for controlling the movement direction of the single wheel 2;

brake mechanism includes brake support frame 3, footboard 4, universal brake block 5 and brake shell fragment 6, brake support frame 3 is articulated with wearing to locate first pivot 7 on the support 1, footboard 4 is articulated with brake support frame 3 through second pivot 8, universal brake block 5 covers is located on first pivot 7, a tip of universal brake block 5 and the lower extreme butt of footboard 4, another tip of universal brake block 5 is used for being connected with steering mechanism, brake shell fragment 6 sets up in the lower extreme of universal brake block 5, the one end of brake shell fragment 6 is provided with the friction braking portion 600 that is used for the outer surface contact with single wheel 2, friction braking portion 600 is bent by the one end downwardly extending of brake shell fragment 6 and is the arc face shape.

In this embodiment, universal caster mainly includes support 1, rotate connect in support 1 single round 2, be used for controlling the steering mechanism of 2 direction of motion of single round and be used for the arrestment mechanism of 2 brakeings of single round, arrestment mechanism's structural design is ingenious wherein, including brake support frame 3, footboard 4, universal brake block 5 and these four essential elements of brake shell fragment 6, universal brake block 5 is connected with steering mechanism and is used for the direction of stopping, and brake shell fragment 6 carries out friction braking with the outer surface contact of single round 2 for the wheel of stopping, and then realize universal caster's dual function of stopping, brake performance is good and stability is high. And, the friction braking part 600 of the brake elastic sheet 6 is bent downwards to form an arc surface, so that the braking contact area between the brake elastic sheet 6 and the outer surface of the single wheel 2 is remarkably increased, and the braking effect and the braking stability of the universal caster can be effectively improved.

Further, steering mechanism includes bottom plate 9, bearing housing lid 10, ripples dish 11, brake disc 12 and fastener 13, bottom plate 9 is used for the bottom fixed connection with external equipment, fastener 13 from top to bottom connects gradually in bottom plate 9, bearing

housing lid

10, 1 top of support, ripples dish 11 and brake disc 12, enclose between bearing housing lid 10 and the 1 top of support and establish and form first annular, be provided with a plurality of first steel balls 14 in the first annular, enclose between 1 top of support and the ripples dish 11 and establish and form the second annular, be provided with a plurality of second steel balls 15 in the second annular.

In this embodiment, the fastening element 13 is a rivet, and the rivet is press-riveted after sequentially passing through the bottom plate 9, the bearing sleeve cover 10, the top of the bracket 1, the impeller and the brake disc 12. The support 1 can horizontally rotate relative to the bottom plate 9 through the arrangement of the first steel balls 14 and the second steel balls 15, so that the single wheel 2 is driven to move along different directions, and the rotation is flexible.

Further, the brake disc 12 is located at the lower end of the wave disc 11, and a washer 16 is arranged between the brake disc 12 and the fastening member 13. Specifically, the brake disc 12 is a brake disc 12 structure in the prior art, the brake disc 12 includes a brake disc body, a gear ring is arranged at the lower end of the brake disc body along the circumferential direction, and the gear ring is used for being matched with the universal brake pad 5 for braking. The provision of the washer 16 reduces wear and impact on the brake disc 12.

Further, universal brake block 5 is including butt portion 500, pivot portion 501 and the locking portion 502 that connects gradually, butt portion 500 butt in the lower extreme of footboard 4, pivot portion 501 sets up the shaft hole 503 that supplies first pivot 7 to wear to establish, pivot portion 501 extends to the one end of locking portion 502 and is provided with inserted sheet 504, inserted sheet 504 butt in the upper end of first pivot 7, locking portion 502 is provided with the latch 505 with the braking of brake disc 12 joint.

In this embodiment, the connecting portion, the pivoting portion 501, the stopping portion 502 and the inserting piece 504 are an integral structure, and the structural strength is high. When the pedal 4 is stepped on, the bottom of the pedal 4 is abutted against the abutting part 500 of the universal brake block 5 and moves downwards along with the pedal 4, and the brake elastic sheet 6 is driven to downwards contact with the outer surface of the single wheel 2 to realize friction braking for braking the wheel; the pivot joint 501 is hinged to the second rotating shaft 8 and is firmly connected, at this time, the stopping part 502 tilts upwards, and the latch 505 on the stopping part 502 is in fit and clamping connection with the gear ring of the brake disc 12 to stop the rotation of the steering mechanism, so that the braking direction is realized. The structure of the braking mechanism is reliable, the braking effect is good and stable through the common arrangement of the universal brake block 5 and the brake spring plate 6.

Further, a clamping groove 506 is arranged between the abutting part 500 and the pivoting part 501, and the clamping groove 506 is used for being clamped with the brake spring plate 6. The universal brake block 5 is convenient to be connected with the brake elastic sheet 6 through the clamping groove 506, the connection is stable, and the brake elastic sheet 6 can be conveniently dismounted.

Further, a shock absorption gasket 17 is arranged below one end of the pedal 4 close to the bracket 1. Specifically, the damping pad 17 is preferably but not limited to a rubber pad, and the damping pad 17 is arranged to avoid collision between the pedal 4 and the universal brake pad 5, so as to play a role in damping and buffering.

Further, the friction braking portion 600 is provided with a U-shaped groove 601. Specifically, the downward bent arc structure of the friction braking portion 600 is changed into a bilaterally symmetrical double-arc structure through the arrangement of the U-shaped groove 601, and the double-arc structure can prevent unidirectional axial movement, so that the braking effect and the stability of the braking mechanism are improved.

Furthermore, the middle part of the brake spring 6 protrudes downwards to form a brake boss 602, and the brake boss 602 is used for contacting with the outer surface of the single wheel 2. Through the setting of braking boss 602, change the contact mode of brake shell fragment 6 and single round 2 surface into face contact, show the brake area of contact who has increased brake shell fragment 6 and single round 2 surface, improve brake force to reduce the wearing and tearing of brake shell fragment 6, can effectively prolong the life of brake shell fragment 6.

Furthermore, the two sides of the middle part of the brake spring plate 6 are provided with a buckle 603 in an upward protruding manner, and the buckle 603 is used for being clamped with the clamping groove 506. Through the structural design of buckle 603 and draw-in groove 506, can improve the stability of being connected between brake shell fragment 6 and universal brake block 5.

Further, the single wheel 2 includes a wheel body 200, two bearings 201 arranged in the wheel body 200, and two hubs 202 respectively installed at two sides of the wheel body 200, the single wheel 2 sequentially passes through the hubs 202 and the bearings 201 through a connecting member 203 and is fixedly connected with the support 1, a spacer 204 is arranged between the two bearings 201, the two hubs 202 are mutually abutted and respectively sleeved on the corresponding bearings 201, and the wheel body 200 is sleeved on the peripheries of the two hubs 202. When the two bearings 201 are subjected to axial acting force, the spacer 204 has a supporting effect on the two bearings 201, so that the bearings 201 are not easy to move. The single wheel 2 obtained by the combination of the bearing 201, the spacer 204, the hub 202 and the wheel body 200 has stable structure and long service life.

The working mode of the universal caster is as follows: when the brake is needed, the pedal 4 is stepped, the bottom of the pedal 4 abuts against the abutting part 500 of the universal brake block 5 and moves downwards along with the pedal 4, and then the brake elastic sheet 6 at the lower end of the abutting part 500 downwards contacts with the outer surface of the single wheel 2 to realize friction braking. The universal caster has the advantages of ingenious structural design, simplicity and convenience in operation, good braking performance and high stability.

The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.

Claims

1. A universal caster, characterized in that: the steering mechanism is characterized by comprising a support (1), a single wheel (2), a steering mechanism and a braking mechanism, wherein the single wheel (2) is arranged below the support (1), the steering mechanism is arranged above the support (1) and is connected with the braking mechanism, and the steering mechanism is used for controlling the movement direction of the single wheel (2);

arrestment mechanism includes brake support frame (3), footboard (4), universal brake block (5) and brake shell fragment (6), brake support frame (3) with wear to locate first pivot (7) on support (1) articulated, footboard (4) are articulated through second pivot (8) and brake support frame (3), universal brake block (5) cover is located on first pivot (7), a tip of universal brake block (5) and the lower extreme butt of footboard (4), another tip of universal brake block (5) is used for being connected with steering mechanism, brake shell fragment (6) set up in the lower extreme of universal brake block (5), the one end of brake shell fragment (6) is provided with friction braking portion (600) that are used for with the outer surface contact of single round (2), friction braking portion (600) are bent by the one end downwardly extending of brake shell fragment (6) and are the cambered surface form.

2. The caster according to claim 1, wherein: steering mechanism includes bottom plate (9), bearing housing cover (10), ripples dish (11), brake disc (12) and fastener (13), bottom plate (9) are used for the bottom fixed connection with external equipment, fastener (13) from top to bottom connect gradually in bottom plate (9), bearing housing cover (10), support (1), ripples dish (11) and brake disc (12), enclose between the top of bearing housing cover (10) and support (1) and establish and form first annular, be provided with a plurality of first steel balls (14) in the first annular, enclose between the top of support (1) and ripples dish (11) and establish and form the second annular, be provided with a plurality of second steel balls (15) in the second annular.

3. The caster according to claim 2, wherein: the brake disc (12) is located at the lower end of the wave disc (11), and a gasket (16) is arranged between the brake disc (12) and the fastening piece (13).

4. The caster according to claim 1, wherein: universal brake block (5) are including butt portion (500), pin joint portion (501) and locking portion (502) that connect gradually, butt portion (500) butt in the lower extreme of footboard (4), shaft hole (503) that supply first pivot (7) to wear to establish are seted up in pin joint portion (501), pin joint portion (501) extend to the one end of locking portion (502) and are provided with inserted sheet (504), inserted sheet (504) butt in the upper end of first pivot (7), locking portion (502) are provided with latch (505) with brake disc (12) joint braking.

5. The caster according to claim 4, wherein: a clamping groove (506) is formed between the abutting part (500) and the pivoting part (501), and the clamping groove (506) is used for being clamped with the brake elastic sheet (6).

6. The caster according to claim 1, wherein: and a damping gasket (17) is arranged below one end of the pedal (4) close to the bracket (1).

7. The caster according to claim 1, wherein: the friction braking portion (600) is provided with a U-shaped groove (601).

8. The caster according to claim 1, wherein: the middle part of the brake elastic sheet (6) protrudes downwards to form a brake boss (602), and the brake boss (602) is used for contacting with the outer surface of the single wheel (2).

9. The caster according to claim 4, wherein: the brake spring (6) is characterized in that two sides of the middle of the brake spring are provided with buckles (603) in an upward protruding mode, and the buckles (603) are used for being connected with the clamping grooves (506) in a clamping mode.

10. The caster according to claim 1, wherein: the single wheel (2) comprises a wheel body (200), two bearings (201) arranged in the wheel body (200) and two wheel hubs (202) arranged on two sides of the wheel body (200) respectively, the single wheel (2) sequentially penetrates through the wheel hubs (202) and the bearings (201) through a connecting piece (203) and is fixedly connected with the support (1), a spacer sleeve (204) is arranged between the two bearings (201), the two wheel hubs (202) are mutually abutted and are respectively sleeved on the corresponding bearings (201), and the peripheries of the two wheel hubs (202) are sleeved by the wheel body (200).