CN213007394U - Reverse buckling type brake structure of universal caster - Google Patents
Reverse buckling type brake structure of universal caster Download PDFInfo
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- CN213007394U CN213007394U CN202021938032.3U CN202021938032U CN213007394U CN 213007394 U CN213007394 U CN 213007394U CN 202021938032 U CN202021938032 U CN 202021938032U CN 213007394 U CN213007394 U CN 213007394U
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- brake
- brake pedal
- shell fragment
- fluted disc
- outer cover
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Abstract
The utility model relates to a reverse-buckling brake structure of a universal caster, which comprises an outer cover, wherein a screw shaft is arranged on the outer cover, a brake block component is arranged in the outer cover, the screw shaft is arranged at the top of the outer cover, the lower end of the screw shaft is in transmission connection with the upper end of a sleeve shaft, and a fluted disc is arranged at the lower end of the sleeve shaft; brake pedal is connected with to the one end of brake block subassembly, the other end be equipped with fluted disc complex barb structure, brake block subassembly middle part is connected with the wheel and stops the piece. Through changing the cooperation structure between brake block subassembly and the screw rod axle bottom fluted disc, change the contact relation between the two from conventional "line" contact into "face" contact to increase area of contact, reduce wearing and tearing, increase of service life effectively solves the problem that long-term use brake became invalid.
Description
Technical Field
The utility model belongs to the technical field of the truckle brake equipment technique and specifically relates to a back-off formula brake structure of universal caster.
Background
Among the prior art, the last shell fragment structure that is used for carrying out the brake to universal rotating shaft that is used for of universal castor's brake equipment, the cooperation structure between its head and the universal rotating shaft tip is: brake shell fragment head is the lamellar structure, and it wears to establish in the axle head of universal axis of rotation, and after brake pedal stepped on, shell fragment jack-up universal axis of rotation to prevent its rotation, the problem that above-mentioned brake structure exists is: the shell fragment easily takes place the phenomenon of skidding in the up-and-down motion in the hole of axle head, and during the brake, the shell fragment jack-up back forms "line" contact with the cooperation of axle head, and area of contact is little, easily causes brake block and axle head wearing and tearing in the long-term use, can lead to the brake to become invalid when serious.
SUMMERY OF THE UTILITY MODEL
The applicant provides a reverse buckling type brake structure of a universal caster aiming at the defects in the prior art, so that the technical problem that the brake fails due to abrasion in the long-term use process because the contact area between a brake pad and a sleeve shaft at the bottom of a screw rod is small is solved.
The utility model discloses the technical scheme who adopts as follows:
the back-off brake structure of the universal caster comprises an outer cover, wherein a screw shaft is arranged on the outer cover, a brake block assembly is arranged in the outer cover, the screw shaft is arranged at the top of the outer cover, the lower end of the screw shaft is in transmission connection with the upper end of a sleeve shaft, and a fluted disc is arranged at the lower end of the sleeve shaft; brake pedal is connected with to the one end of brake block subassembly, the other end be equipped with fluted disc complex barb structure, brake block subassembly middle part is connected with the wheel and stops the piece.
As a further improvement of the above technical solution:
the specific structure of brake block subassembly does: including anterior shell fragment, the front end edge of anterior shell fragment sets up two shell fragment teeth that upwards extend, two along the circumference interval the shell fragment tooth constitutes the barb structure, the fluted disc bottom surface is equipped with a plurality of downwardly extending's perpendicular tooth along circumference round interval, and during the brake, the shell fragment tooth is adjacent from erecting clearance department between the tooth, upwards stretch into to block in the fluted disc to make and form "face" contact between shell fragment addendum face and the fluted disc bottom surface, the shell fragment tooth by a plurality of downwardly extending's perpendicular tooth carry out radially spacingly simultaneously.
Brake pedal includes brake pedal down and rather than the last brake pedal who rotates to be connected, goes up brake pedal and is located brake pedal's upper portion down, and under initial condition, go up brake pedal lock at brake pedal front end down.
The front end of the rear elastic sheet is rotatably connected with the rear end of the front elastic sheet through a first rivet pin, the rear end of the rear elastic sheet is rotatably connected with the lower brake pedal through a second rivet pin, the front end of the lower brake pedal is rotatably connected with the upper brake pedal through a third rivet pin, and the upper brake pedal is rotatably connected with a fourth rivet pin arranged on the outer cover.
The lower side of the rear elastic sheet is connected with the wheel brake sheet, and two ends of the wheel brake sheet are of bent hook-shaped structures.
The wheel shaft penetrates through the outer cover, two ends of the wheel shaft are respectively connected with a wheel body through gear discs, and the gear discs are matched with the bent hook-shaped structures of the wheel brake pieces to be clamped or loosened.
The outer ends of the two wheels are respectively connected with a cover plate.
The upper surface of the middle part of the front elastic sheet is connected with a compression spring, and the top end of the compression spring is connected with a bracket fixedly connected on the outer cover.
The utility model has the advantages as follows:
the utility model discloses a change the cooperation structure between brake block subassembly and the screw shaft bottom fluted disc, change the contact relation between the two from conventional "line" contact into "face" contact to increase area of contact, reduce wearing and tearing, increase of service life effectively solves the problem that long-term use brake became invalid.
The utility model discloses the fluted disc edge design of sleeve spindle bottom becomes the perpendicular tooth structure of interval equipartition, forms the clearance that the ammunition feed piece stretched into between the adjacent tooth. The two smooth cooperation of being convenient for, when the shell fragment tooth card goes into the fluted disc inside, erect the tooth and can carry out radial (the radial of sleeve axle) spacing to the shell fragment again and prevent to deviate from after it skids, improved structural stability and brake performance.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic structural view of fig. 1 with one end of the wheel body and the cover plate removed.
Fig. 3 is a structural schematic diagram of the non-braking state of fig. 2 after the gear plate and the bracket connected in the outer cover are removed.
Fig. 4 is a schematic structural view corresponding to fig. 3 in a braking state.
Wherein: 1. a screw shaft; 2. a wheel body; 3. an upper brake pedal; 4. a brake pedal is lowered; 5. a cover plate; 6. a gear plate; 7. a wheel axle; 8. a housing; 9. a front spring plate; 10. a first rivet pin; 11. a rear spring plate; 12. a third rivet pin; 13. a wheel brake sheet; 14. a fourth rivet pin; 15. a second rivet pin; 16. a sleeve shaft; 17. a compression spring; 91. spring sheet teeth; 161. and C, a fluted disc.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 3, the back-off brake structure of the universal caster of the present embodiment includes an outer cover 8, a screw shaft 1 is mounted on the outer cover 8, a brake block assembly is mounted in the outer cover 8, the screw shaft 1 is disposed on the top of the outer cover 8, the lower end of the screw shaft 1 is in transmission connection with the upper end of a sleeve shaft 16, and a fluted disc 161 is disposed at the lower end of the sleeve shaft 16; one end of the brake pad component is connected with a brake pedal, the other end of the brake pad component is provided with a barb structure matched with the fluted disc 161, and the middle part of the brake pad component is connected with a wheel brake pad 13.
The specific structure of brake block subassembly does: including anterior shell fragment 9, the front end edge of anterior shell fragment 9, set up two shell fragment teeth 91 that upwards extend along the circumference interval, two shell fragment teeth 91 constitute barb structure, fluted disc 161 bottom surface is equipped with a plurality of downwardly extending's perpendicular tooth along circumference round interval, during the brake, shell fragment tooth 91 is from adjacent clearance department of erectting between the tooth, upwards stretch into the interior block of fluted disc 161, and make and form "face" contact between shell fragment tooth 91 top surface and the fluted disc 161 bottom surface, it is radial spacing that shell fragment tooth 91 is carried out by a plurality of downwardly extending's perpendicular tooth simultaneously.
Brake pedal includes brake pedal 4 down and rather than the last brake pedal 3 of rotating the connection, goes up brake pedal 3 and is located the upper portion of brake pedal 4 down, and under initial condition, go up brake pedal 3 lock at brake pedal 4 front end down.
Still include rear portion shell fragment 11, its front end is connected with the rotation of front portion shell fragment 9 rear end through first rivet pin 10, and 11 rear ends of rear portion shell fragment are connected with lower brake pedal 4 rotation through second rivet pin 15, and lower brake pedal 4 front end is connected with last brake pedal 3 rotation through third rivet pin 12, goes up brake pedal 3 and rotates with fourth rivet pin 14 of installing on dustcoat 8 simultaneously and is connected.
The lower side of the rear elastic sheet 11 is connected with a wheel brake sheet 13, and two ends of the wheel brake sheet 13 are of bent hook-shaped structures.
The wheel shaft 7 penetrates through the outer cover 8, two ends of the wheel shaft 7 are respectively connected with a wheel body 2 through a gear disc 6, and the gear disc 6 is matched with the bent hook-shaped structure of the wheel brake piece 13 to be clamped or loosened.
The outer ends of the two wheel bodies 2 are respectively connected with a cover plate 5.
The upper surface of the middle part of the front elastic sheet 9 is connected with a compression spring 17, and the top end of the compression spring is connected with a bracket fixedly connected on the outer cover 8.
The working principle of the invention is as follows:
when the front elastic piece teeth 91 on the front end edge of the front elastic piece 9 are in an initial state, the front elastic piece teeth are not in contact with a fluted disc of the sleeve shaft, when braking is needed, the brake pedal 4 is stepped down (meanwhile, the upper brake pedal 3 bounces around the third rivet pin 12), as shown in fig. 4, the rear elastic piece 11 upwards rotates around the second rivet pin 15, the front elastic piece 9 is driven to upwards lift around the first rivet pin 10, the elastic piece teeth 91 extend into the fluted disc 161 from a gap between adjacent vertical teeth on the fluted disc 161 to be clamped, and meanwhile, the compression spring 17 on the front elastic piece 9 is compressed by a support (not shown in the figure), so that the lead screw shaft 1 is braked. Meanwhile, the bent hook-shaped structures at the two ends of the wheel braking piece 13 are respectively matched with the gear discs 6 at the two ends of the wheel shaft 7 (clamped into the adjacent gear teeth), so that the wheel body 2 is braked. After the structure is braked, the upper brake pedal 3 is pressed down, and the mechanism is reset.
The utility model relates to an ingenious, easy operation prevents effectively that the brake block from skidding, reduces wearing and tearing, improves stability and security.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (8)
1. The utility model provides a turn-buckle formula brake structure of universal caster, includes dustcoat (8), install screw shaft (1) on dustcoat (8), install brake block subassembly, its characterized in that in dustcoat (8): the screw shaft (1) is arranged at the top of the outer cover (8), the lower end of the screw shaft (1) is in transmission connection with the upper end of the sleeve shaft (16), and a fluted disc (161) is arranged at the lower end of the sleeve shaft (16); brake pedal is connected with to the one end of brake block subassembly, the other end be equipped with fluted disc (161) complex barb structure, brake block subassembly middle part is connected with wheel brake piece (13).
2. The reversible brake structure of the caster according to claim 1, wherein: the specific structure of brake block subassembly does: including anterior shell fragment (9), the front end edge of anterior shell fragment (9), set up two shell fragment teeth (91) that upwards extend along the circumference interval, two shell fragment tooth (91) constitute the barb structure, fluted disc (161) bottom surface is equipped with a plurality of downwardly extending's perpendicular tooth along circumference round interval, and during the brake, shell fragment tooth (91) are adjacent from the clearance department between the perpendicular tooth, upwards stretch into to fluted disc (161) interior block to make and form "face" contact between shell fragment tooth (91) top surface and fluted disc (161) bottom surface, shell fragment tooth (91) simultaneously by a plurality of downwardly extending's perpendicular tooth carry out radially spacingly.
3. The reversible brake structure of the caster according to claim 2, wherein: brake pedal includes brake pedal (4) down and rather than last brake pedal (3) of rotating the connection, goes up brake pedal (3) and is located the upper portion of brake pedal (4) down, and under the initial condition, go up brake pedal (3) lock at brake pedal (4) front end down.
4. The reversible brake structure of the caster according to claim 3, wherein: still include rear portion shell fragment (11), its front end rotates with anterior shell fragment (9) rear end through first rivet round pin (10) to be connected, rear portion shell fragment (11) rear end pass through second rivet round pin (15) with brake pedal (4) rotate down to be connected, brake pedal (4) front end down pass through third rivet round pin (12) with go up brake pedal (3) and rotate to be connected, go up brake pedal (3) and rotate with fourth rivet round pin (14) of installing on dustcoat (8) simultaneously and be connected.
5. The reversible brake structure of the caster according to claim 4, wherein: the lower side of the rear elastic sheet (11) is connected with the wheel brake sheet (13), and two ends of the wheel brake sheet (13) are of bent hook-shaped structures.
6. The reversible brake structure of the caster according to claim 5, wherein: an axle (7) penetrates through the outer cover (8), two ends of the axle (7) are connected with a wheel body (2) through a gear disc (6), and the gear disc (6) is matched with a bent hook-shaped structure of the wheel brake sheet (13) to be clamped or loosened.
7. The reversible brake structure of the caster according to claim 6, wherein: the outer ends of the two wheel bodies (2) are respectively connected with a cover plate (5).
8. The reversible brake structure of the caster according to claim 2, wherein: the upper surface of the middle part of the front elastic sheet (9) is connected with a compression spring (17), and the top end of the compression spring is connected with a support fixedly connected on the outer cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021938032.3U CN213007394U (en) | 2020-09-07 | 2020-09-07 | Reverse buckling type brake structure of universal caster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021938032.3U CN213007394U (en) | 2020-09-07 | 2020-09-07 | Reverse buckling type brake structure of universal caster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213007394U true CN213007394U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021938032.3U Active CN213007394U (en) | 2020-09-07 | 2020-09-07 | Reverse buckling type brake structure of universal caster |
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| Country | Link |
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| CN (1) | CN213007394U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400038A (en) * | 2021-06-21 | 2021-09-17 | 徐友洪 | Moving mechanism of numerical control machine tool |
| JP7470232B1 (en) | 2023-01-12 | 2024-04-17 | 福建施可瑞医療科技股▲ふん▼有限公司 | Multi-pedal controllable caster and method for using same |
-
2020
- 2020-09-07 CN CN202021938032.3U patent/CN213007394U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400038A (en) * | 2021-06-21 | 2021-09-17 | 徐友洪 | Moving mechanism of numerical control machine tool |
| JP7470232B1 (en) | 2023-01-12 | 2024-04-17 | 福建施可瑞医療科技股▲ふん▼有限公司 | Multi-pedal controllable caster and method for using same |
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| CP01 | Change in the name or title of a patent holder |
Address after: 214000 Yanyu Road, Qianzhou supporting area, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: Wuxi Zhongguan Medical Equipment Co.,Ltd. Address before: 214000 Yanyu Road, Qianzhou supporting area, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: WUXI ZHONGGUAN LOGISTICS EQUIPMENT Co.,Ltd. |