CN210132953U

CN210132953U - Double-wheel type seat universal caster

Info

Publication number: CN210132953U
Application number: CN201920885062.3U
Authority: CN
Inventors: 凌云
Original assignee: Changxing Heping Xinxing Furniture Factory (general Partnership)
Current assignee: Changxing Heping Xinxing Furniture Factory (general Partnership)
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-03-10
Anticipated expiration: 2029-06-13

Abstract

The utility model relates to a two-wheeled seat universal caster, including support and the gyro wheel of rotatable setting on the support, the inboard of gyro wheel is provided with a plurality of stoppers at the interval in the circumferencial direction, forms the spacing groove between two adjacent stoppers, be provided with the locking subassembly on the support, the locking subassembly locks the gyro wheel through mode and spacing groove block of rotating, is provided with curved elastic sheet on this locking subassembly, and it cooperates the locking of locking subassembly and loosens two states and carry out the spacing through the elastic sheet of this curved and the spacing arch that sets up on the support side; the utility model overcomes the truckle structure is complicated, and it is inconvenient that accessories are assembled more, and life is short, poor stability and problem with high costs.

Description

Double-wheel type seat universal caster

Technical Field

The utility model relates to a truckle technical field especially relates to a double round formula seat universal caster.

Background of the invention is described.

Casters facilitate the movement of the weight, but sometimes we need it to be stopped. For example, a worker working on a hand and foot stand needs to be stably stopped by the hand and foot stand with casters.

An authorization publication number is CN 205168050U's a Chinese utility model patent, and it discloses a universal brake truckle, include: the base support and set up the gyro wheel in the base support both sides, the vertical straight bobbin that is provided with in the base support, the gyro wheel inboard is provided with a brake circle with one heart, the interval is provided with the round tooth's socket on the brake circle excircle, be provided with a brake surge sheet in the base support, the both sides of brake surge sheet are provided with the lug that corresponds with the tooth's socket respectively, the bottom of brake surge sheet is provided with a spring that is connected with the base support, the articulated piece that steps on that is provided with on the base support, the bottom end of stepping on the piece is provided with the triangle locking piece with the contact of brake surge sheet top.

However, it has the following problems: at first its brake structure needs the coupling spring, and the dismouting is not convenient, and accessories are many, and is with high costs and use to receive spring fatigue strength after a period to influence, and the availability factor worsens gradually, appears the condition that the gyro wheel rocked after this kind of brake structure locking easily in addition.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's weak point, a double-wheel seat universal castor is provided, the spacing arch of setting up on elastic sheet and the support through setting up bent type cooperates, and set up curved section an and the locking section b of loosening on the elastic sheet, make spacing protruding card go into the purpose that the section an or locking section b of loosening loosen or the locking reach the truckle is loosened or the locking, and then overcome the truckle structure complicacy, the spare and accessory part is many assembles inconvenient, short service life, poor stability and problem with high costs.

Aiming at the technical problems, the technical scheme is as follows:

the utility model provides a double round formula seat universal caster, includes support and the gyro wheel of rotatable setting on the support, the inboard interval of gyro wheel is provided with a plurality of stoppers in the circumferencial direction, forms the spacing groove between two adjacent stoppers, be provided with the locking subassembly on the support, the locking subassembly carries out the locking through pivoted mode and spacing groove block to the gyro wheel, is provided with the flexure strip of bent type on this locking subassembly, and it is spacing through the spacing protruding cooperation of the flexure strip of this bent type and the spacing that sets up on the support side to the locking of locking subassembly and loosen two states and carry on spacingly.

Preferably, the locking assembly comprises a rotating frame which is rotatably arranged on the bracket, one end of the rotating frame extends to the outer side of the bracket, a stepping sheet is arranged at the end part of the rotating frame, the elastic sheet is arranged at the other end of the rotating frame, two communicated grooves a and b are formed between the elastic sheet and the rotating frame, and the elastic sheet comprises a loosening section a corresponding to the position of the groove a and a locking section b corresponding to the position of the groove b;

the limiting bulge is in contact with the elastic sheet.

Preferably, a locking block is arranged on one side of the groove a on the side surface of the rotating frame, and the locking assembly locks the roller by clamping the locking block into the limiting groove when rotating.

Preferably, the releasing section a and the locking section b are both arc-shaped with arc centers facing the limiting bulges, and the corresponding limiting bulges are cylindrical.

Preferably, the locking block is an arc-shaped block, the radius of the outer arc of the locking block is equal to the radius of the arc of the limiting groove, and the arc length of the arc-shaped block is slightly larger than that of the limiting groove.

Preferably, when the locking assembly rotates to the locking state, the outer arc surface of the locking block completely fits the arc surface of the limiting groove.

Preferably, two rollers are symmetrically arranged on two sides of the bracket, two corresponding locking blocks are symmetrically arranged on two side surfaces of the rotating frame, and the left roller and the right roller rotate independently;

it should be noted that the locking structure of the present invention is not limited to the use on the caster, and can be applied to a caster with a single wheel.

Preferably, the support is fixedly connected with a support column, and a shaft core is arranged on the support column.

As a further preferable mode, a reinforcing rib is arranged on one side of the side surface of the bracket, which is close to the supporting column, so that the supporting strength of the bracket is enhanced.

The beneficial effects of this embodiment:

1. the utility model discloses in cooperate through the spacing arch that sets up on the flexure strip that sets up bent type and the support, and set up curved section an and the locking section b of loosening on the flexure strip, make can easily rotate the rotating turret and make spacing protruding card go into the purpose that the section an or locking section b of loosening loosens or the locking to the truckle is reached, moreover, the steam generator is simple in structure, and is with low costs, and because this flexure strip is integrated into one piece with the rotating turret, it is more convenient to make, the setting of connecting piece has been reduced, and service life is also longer.

2. In the utility model, the locking block is arranged to be an arc-shaped block, the radius of the outer arc of the locking block is equal to the radius of the arc of the limiting groove, and the arc length is slightly longer than the arc length of the limiting groove, so that the locking block can be clamped into the limiting groove to ensure the stability of the locking, and the shaking after the locking is reduced;

in addition, due to the arc-shaped arrangement of the locking block, when the locking action is carried out, the outer arc surface of the locking block can smoothly slide into the limiting groove on one side along the arc surface when the situation that the outer arc surface leans against the limiting block occurs, the situation that the locking is not in place is avoided, and the use stability is improved.

In conclusion, the caster has the advantages of simple structure, long service life, good use stability and the like, and is particularly suitable for the technical field of seat casters.

Drawings

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

FIG. 1 is a schematic structural view of a caster of a two-wheeled chair;

FIG. 2 is a schematic view of the internal structure of a caster of the two-wheeled seat;

FIG. 3 is a schematic view of the locking assembly in a locked condition;

FIG. 4 is a schematic view of the latch assembly in a released condition;

FIG. 5 is a schematic view of the locking block engaged with the limiting groove;

fig. 6 is a schematic structural view of the locking assembly.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the accompanying drawings.

Example one

As shown in fig. 1 to 6, the two-wheeled seat caster provided in this embodiment includes a bracket 1 and a roller 2 rotatably disposed on the bracket 1, a plurality of limiting blocks 21 are disposed at intervals on the inner side of the roller 2 in the circumferential direction, a limiting groove 22 is formed between two adjacent limiting blocks 21, a locking assembly 3 is disposed on the bracket 1, the locking assembly 3 is engaged with the limiting groove 22 in a rotating manner to lock the roller 2, a curved elastic sheet 31 is disposed on the locking assembly 3, and the locking assembly 3 is locked and released in two states by the cooperation of the curved elastic sheet 31 and a limiting protrusion 11 disposed on the side surface of the bracket 1.

Further, the locking assembly 3 comprises a rotating frame 32 rotatably arranged on the bracket 1, one end of the rotating frame 32 extends to the outer side of the bracket 1, the end is provided with a stepping piece 33, the elastic piece 31 is arranged at the other end of the rotating frame 32, two communicated grooves a321 and b322 are formed between the elastic piece 31 and the rotating frame 32, and the elastic piece 31 comprises a releasing section a311 corresponding to the position of the groove a321 and a locking section b312 corresponding to the position of the groove b 322;

the limiting protrusion 11 is arranged in contact with the elastic sheet 31.

In this embodiment, the curved elastic piece 31 is matched with the limiting protrusion 11 arranged on the bracket 1, and the arc-shaped loosening section a311 and the arc-shaped locking section b312 are arranged on the elastic piece 31, so that the rotating frame 32 can be easily rotated to enable the limiting protrusion 11 to be clamped into the loosening section a311 or the locking section b312 to achieve the purpose of loosening or locking the caster.

Further, a locking block 34 is disposed on one side of the groove a321 on the side of the rotating frame 32, and the locking block 34 is locked in the limiting groove 22 when the locking assembly 3 rotates, so as to lock the roller 2.

Further, the releasing section a311 and the locking section b312 are both configured as an arc shape with an arc center facing the limiting protrusion 11, and the corresponding limiting protrusion 11 is configured as a cylinder.

Further, when the locking assembly 3 rotates to the locking state, the outer arc surface of the locking block 34 completely fits the arc surface of the limiting groove 22.

Furthermore, two rollers 2 are symmetrically arranged on two sides of the bracket 1, two corresponding locking blocks 34 are symmetrically arranged on two side surfaces of the rotating frame 32, and the left and right rollers 2 rotate independently.

Further, a support column 12 is fixedly connected to the support 1, and a shaft core 13 is arranged on the support column 12.

Furthermore, a reinforcing rib 14 is arranged on one side of the side surface of the bracket 1 close to the supporting column 12, so that the supporting strength of the bracket 1 at the position is enhanced.

Example two

As shown in fig. 5 and 6, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that: further, the locking block 34 is an arc-shaped block, and the radius of the outer arc of the locking block is equal to the radius of the arc of the limiting groove 22.

In this embodiment, it is worth mentioning that the locking block 34 is set as an arc-shaped block, the radius of the outer arc of the locking block is equal to the radius of the arc of the limiting groove 22, and the arc length is set to be slightly longer than the arc length of the limiting groove 22, so that the locking block 34 can be locked in the limiting groove 22 to ensure the stability of locking and reduce the shaking after locking;

in addition, due to the arc-shaped arrangement of the locking block 34, when the locking action is performed, the outer arc surface of the locking block 34 abuts against the limiting block 21, and can smoothly slide into the limiting groove 22 on one side along the arc surface, so that the situation that the locking is not in place is avoided, and the use stability is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a double round formula seat universal caster, includes support (1) and rotatable gyro wheel (2) of setting on support (1), its characterized in that, the inboard of gyro wheel (2) is provided with a plurality of stopper (21) in the circumferencial direction interval, forms spacing groove (22) between two adjacent stopper (21), be provided with locking subassembly (3) on support (1), locking subassembly (3) and spacing groove (22) cooperation carry out the locking to gyro wheel (2), are provided with bent type flexure strip (31) on this locking subassembly (3), and it is spacing through the spacing protruding (11) cooperation that sets up on this bent type flexure strip (31) and support (1) side to the locking of locking subassembly (3) and loosen two states.

2. A two-wheeled seat castor according to claim 1, wherein: the locking assembly (3) locks the roller (2) in a mode of being clamped into the limiting groove (22) through rotation.

3. A two-wheeled seat castor according to claim 1, wherein: the locking assembly (3) comprises a rotating frame (32) which is rotatably arranged on the support (1), one end of the rotating frame (32) extends to the outer side of the support (1), a stepping piece (33) is arranged at the end part of the rotating frame which extends outwards, the elastic piece (31) is arranged at the other end of the rotating frame (32), two communicated grooves a (321) and grooves b (322) are formed between the elastic piece (31) and the rotating frame (32), and the elastic piece (31) comprises a loosening section a (311) corresponding to the position of the groove a (321) and a locking section b (312) corresponding to the position of the groove b (322);

the limiting bulge (11) is in contact with the elastic sheet (31).

4. A two-wheeled seat castor according to claim 3, wherein: the side of the rotating frame (32) is provided with a locking block (34) on one side of the groove a (321), and when the locking assembly (3) rotates, the locking block (34) is clamped into the limiting groove (22) to lock the roller (2).

5. A two-wheeled seat castor according to claim 3, wherein: the releasing section a (311) and the locking section b (312) are both arranged in a circular arc shape with the arc center facing the limiting protrusion (11), and the limiting protrusion (11) corresponding to the releasing section a and the locking section b is arranged in a cylindrical shape.

6. The two-wheeled seat caster of claim 4, wherein: the locking block (34) is an arc-shaped block, and the radius of the outer arc of the locking block is equal to the radius of the arc of the limiting groove (22).

7. The two-wheeled seat caster of claim 4, wherein: when the locking assembly (3) rotates to a locking state, the outer arc surface of the locking block (34) is completely attached to the arc surface of the limiting groove (22).

8. The two-wheeled seat caster of claim 4, wherein: the two rollers (2) are symmetrically arranged on two sides of the bracket (1), the two locking blocks (34) corresponding to the two rollers are symmetrically arranged on two side faces of the rotating frame (32), and the left roller (2) and the right roller (2) rotate independently.

9. A two-wheeled seat castor according to claim 1, wherein: the support is characterized in that a support column (12) is fixedly connected to the support (1), and a shaft core (13) is arranged on the support column (12).

10. A two-wheeled seat castor according to claim 9, wherein: and a reinforcing rib (14) is arranged on one side of the side surface of the bracket (1) close to the supporting column (12).