CN213831228U

CN213831228U - Full plastic caster

Info

Publication number: CN213831228U
Application number: CN202022915520.9U
Authority: CN
Inventors: 金建杰
Original assignee: Ningbo Xiuhe Technology Co ltd
Current assignee: Ningbo Xiuhe Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-30
Anticipated expiration: 2030-12-03

Abstract

The all-plastic caster comprises a connecting seat and rollers on two sides, wherein the connecting seat comprises a supporting shell and an arc-shaped base which are matched with each other, a connecting lock column is inserted into the supporting shell, a central shaft penetrates through the supporting shell and the arc-shaped base, two ends of the central shaft are fixedly connected with the rollers, a first positioning pin and a second positioning pin are inserted into the supporting shell, and a brake pad and a brake pedal are respectively sleeved in the supporting shell; the brake pad comprises a middle inclined plate and clamping strips which are symmetrical on two sides, wherein the middle part of the inclined plate is upwards integrally formed with a resetting-assisting elastic sheet, an inner gear and an outer gear ring are arranged on the inner side of the roller, an upper bending part is arranged at the end part of the clamping strip close to the connecting lock column, a lower bending part is arranged at the end part of the clamping strip close to the brake pedal, the upper bending part can be clamped into the outer gear ring, and the lower bending part can be clamped into the inner gear; the brake pedal comprises a hinge part hinged with the second positioning pin and a backward warping pedal part outside the supporting shell, and the end part of the hinge part is abutted with the lower part of the inclined plate. The utility model discloses innovated locking, unlocking structure, the brake block function is various, and is durable.

Description

Full plastic caster

Technical Field

The utility model relates to a truckle field especially relates to an all-plastic truckle.

Background

The caster is widely used in various industries and fields of engineering, equipment, logistics, warehousing, medical treatment, furniture, carts, bags and the like, and is a common structure for bearing heavy objects to roll and advance in modern industry. The truckle needs to be locked in a lot of use scenes, including the locking to its rotation direction and the rolling locking of gyro wheel, in order to realize its rigidity that bears the thing, some truckles have been designed at present and have been constructed the brake structure, but the brake of two-sided wheel on the market generally all adopts the plastics material, firm inadequately, life is shorter, and, the part that many brake structures related is more, the transmission link is many, produce the damage easily, during the unblock, the structure resets also not very sensitive, it is not very convenient if need the constant use, therefore, how improve the locking of truckle, the unblock structure, become the direction of further improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the problem to prior art exists provides one kind and has optimized locking, unlocking structure, convenient to use and the durable plastic truckle of structure.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the all-plastic caster comprises a connecting seat and rollers symmetrically arranged on two sides of the connecting seat, wherein the connecting seat comprises a supporting shell and an arc-shaped base which are matched with each other, the supporting shell is provided with a through lock cylinder hole, a connecting lock cylinder is inserted in the lock cylinder hole, a central shaft penetrates through the supporting shell and the arc-shaped base, two ends of the central shaft are fixedly connected with the rollers, a first positioning pin and a second positioning pin are inserted in the supporting shell, a brake pad is sleeved on the first positioning pin, and a brake pedal is sleeved on the second positioning pin;

the brake pad comprises a middle inclined plate and clamping strips which are symmetrical on two sides, an inner gear and an outer gear ring are arranged on the inner side of the roller, an upper bending part is integrally formed at the end part, close to the connecting lock column, of each clamping strip, a lower bending part is integrally formed at the end part, close to the brake pedal, of each clamping strip, the upper bending part can be clamped into the outer gear ring, the lower bending part can be clamped into the inner gear, and the middle part of the inclined plate is upwards integrally formed to help the reset elastic sheet;

the brake pedal comprises a hinge part and a backward warping pedal part, wherein the hinge part is hinged to the second positioning pin, the backward warping pedal part is positioned on the outer side of the supporting shell, and the end part of the hinge part is abutted to the lower part of the inclined plate.

Furthermore, the fixed clamp in lock post hole upper end is equipped with fixed apron, fixed apron middle part is seted up with connecting lock post assorted through-hole, fixed apron lower extreme integrated into one piece has last sawtooth portion, the cover is equipped with the orientation disc on the connection lock post, orientation disc top integrated into one piece has the lower sawtooth portion that matches with last sawtooth portion, orientation disc circumference integrated into one piece has gear portion.

Further, the end part of the inclined plate close to the connecting lock cylinder is integrally formed with a gear shaping part, and the gear shaping part is matched with the gear part.

Further, the gear part includes an upper gear disc part at an upper surface and a lower gear disc part at a lower surface.

Furthermore, mounting grooves matched with the brake pads are formed in two sides of the supporting shell, the clamping strips are located on two sides of the supporting shell, the supporting shell is provided with a limiting opening into which the hinged portion extends, and the outer wall of the supporting shell is provided with a limiting protruding block matched with the upper bending portion.

Furthermore, the inner wall of the supporting shell is provided with a bulge abutted against the return-aid elastic sheet.

Furthermore, the lower end of the connecting lock cylinder is fixedly sleeved with a nut.

Furthermore, a first mounting hole is formed in the middle of the supporting shell, a second mounting hole corresponding to the first mounting hole is formed in the upper portion of the arc-shaped base, and the central shaft penetrates through the first mounting hole and the second mounting hole.

Further, the brake pad is made of stainless steel.

Furthermore, the outer surface of the roller is sleeved with a soft rubber outer ring.

Compared with the prior art, the full-plastic foot wheel of the utility model has the advantages that the locking and unlocking structure of the foot wheel is innovated, the direction and the rolling of the foot wheel can be conveniently locked and unlocked, the core structure is the brake block, the foot can step on the backward raising pedal part downwards to push the lower end of the brake block forwards, so that the brake block rotates, and after the brake block rotates, one end of the brake block can be inserted into the lower fluted disc part to further lock and connect the rotation of the lock post; meanwhile, the clamping strips on the two sides of the brake pad can be clamped into the outer gear ring and the inner gear of the roller, so that the roller is locked to roll, the reset assisting elastic sheet integrally formed on the brake pad can assist the reset of the brake pad during reset, the functions of locking rolling and locking direction rotation are integrated through the shape design of the brake pad, the structure is simplified, and the brake pad is made of stainless steel and is durable. In addition, the fixed connection part for connecting the lock column is finished by a plastic three-point fixing iron directional disc, and the direction locking is firmer, so the all-plastic caster has good popularization and application values.

Drawings

Fig. 1 is a perspective view of the all-plastic caster of the present invention.

Fig. 2 is an exploded view of the all-plastic caster of the present invention.

Fig. 3 is an exploded view of the all-plastic caster of the present invention (with the roller on one side hidden).

Fig. 4 is a perspective view of a part of the components of the present invention.

Fig. 5 is a sectional view of the all-plastic caster of the present invention.

Reference numerals: 1. a connecting seat; 11. a support housing; 111. a lock cylinder hole; 112. a first mounting hole; 113. a first positioning hole; 114. a second positioning hole; 115. a first positioning pin; 116. a second positioning pin; 117. mounting grooves; 118. a limiting bump; 119. limiting the opening; 12. an arc-shaped base; 121. a second mounting hole; 13. connecting a lock cylinder; 131. a nut; 14. fixing the cover plate; 141. an upper serration part; 15. a directional disk; 151. a lower serration part; 152. a gear portion; 1521. an upper tray part; 1522. a lower tray part; 16. a central shaft; 17. a brake pad; 171. an inclined plate; 1711. a toothed segment; 1712. a reset-assisting elastic sheet; 172. clamping the strip; 1721. an upper bending part; 1722. a lower bent portion; 18. a brake pedal; 181. a hinge portion; 182. a rear warped pedal part; 2. a roller; 21. an internal gear; 22. an outer ring gear; 23. a rubber outer ring;

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 5, the all-plastic caster comprises a connecting seat 1 and rollers 2 symmetrically arranged on two sides of the connecting seat 1, wherein the connecting seat 1 comprises a supporting shell 11 and an arc-shaped base 12 which are vertically matched with each other, the supporting shell 11 is provided with a lock cylinder hole 111 which vertically penetrates through, a connecting lock cylinder 13 is inserted into the lock cylinder hole 111, and the upper part of the connecting lock cylinder 13 is connected with a product to be provided with the caster, such as a luggage case.

The fixing clip is equipped with fixed apron 14 in cylinder hole 111 upper end, fixed apron 14 middle part is seted up and is connected lock cylinder 13 assorted through-hole, a position for injecing connection lock cylinder 13, fixed apron 14 lower extreme integrated into one piece has last sawtooth portion 141, it is equipped with directional disk 15 to connect the cover on the lock cylinder 13, directional disk 15 top integrated into one piece has with last sawtooth portion 141 assorted lower sawtooth portion 151, go up sawtooth portion 141 and the mutual block of lower sawtooth portion 151 and make directional disk 15 unable production for fixed apron 14 rotate, directional disk 15 circumference integrated into one piece has gear portion 152, gear portion 152 is including the last fluted disc portion 1521 that is in the upper surface and the lower fluted disc portion 1522 that is in the lower surface.

In addition, the lower end of the connecting lock column 13 is fixedly sleeved with a nut 131, and the nut 131 is used for limiting the vertical position of the orientation disk 15.

The middle of the supporting shell 11 is provided with a first mounting hole 112, the upper portion of the arc-shaped base 12 is provided with a second mounting hole 121 corresponding to the first mounting hole 112, the central shaft 16 passes through the first mounting hole 112 and the second mounting hole 121, two ends of the central shaft 16 are fixedly connected with the roller 2, and the central shaft 16 is a rotation center of the roller 2.

The supporting shell 11 is provided with a first positioning hole 113 and a second positioning hole 114, the first positioning hole 113 is located at the rear upper part of the first mounting hole 112, the second positioning hole 114 is located at the rear position of the supporting shell 11, a first positioning pin 115 is inserted into the first positioning hole 113, a second positioning pin 116 is inserted into the second positioning hole 114, the first positioning pin 115 is sleeved with a brake pad 17, and the second positioning pin 116 is sleeved with a brake pedal 18.

The brake pad 17 includes a middle inclined plate 171 and two symmetrical clamping strips 172, the end of the inclined plate 171 near the connecting lock cylinder 13 is integrally formed with a gear shaping portion 1711, the gear shaping portion 1711 is matched with the gear portion 152, so that when the brake pad 17 rotates clockwise around the first positioning pin 115 for a certain angle, the gear shaping portion 1711 is just clamped into several adjacent teeth of the gear portion 152, thereby limiting the rotation of the connecting lock cylinder 13.

The inside of the roller 2 is provided with an inner gear 21 and an outer gear ring 22, the end portion of the clamping strip 172 close to the connecting lock column 13 is integrally formed with an upper bending portion 1721, the end portion of the clamping strip 172 close to the brake pedal 18 is integrally formed with a lower bending portion 1722, the upper bending portion 1721 is matched with the outer gear ring 22, the lower bending portion 1722 is matched with the inner gear 21, so that when the brake pad 17 rotates clockwise around the first positioning pin 115 by a certain angle, the upper bending portion 1721 can be inserted into the outer gear ring 22, and meanwhile, the lower bending portion 1722 can be inserted into the inner gear 21.

The middle of the inclined plate 171 is integrally formed upwards to help the reset elastic sheet 1712, the reset elastic sheet 1712 can utilize the elasticity thereof when unlocking, the reset of the auxiliary brake pad 17 is assisted, and the inner wall of the supporting shell 11 is provided with a bulge which is abutted against the reset elastic sheet 1712, so that the reset elastic sheet 1712 can better realize the function.

The supporting shell 11 is provided with mounting grooves 117 at both sides thereof, which are matched with the brake pads 17, so as to facilitate the installation of the brake pads 17, the clamping strips 172 are located at both sides of the supporting shell 11, and the outer wall of the supporting shell 11 is provided with a limiting projection 118, which is matched with the upper bending part 1721, for limiting the limit position of the clamping strips 172 after the brake pads 17 rotate clockwise, in this embodiment, the brake pads 17 are made of stainless steel.

The brake pedal 18 includes a hinge portion 181 hinged to the second positioning pin 116 and a backward tilted pedal portion 182 located outside the support housing 11, the support housing 11 is provided with a limit opening 119 into which the hinge portion 181 extends, the backward tilted pedal portion 182 is tilted backward so that a user can conveniently step on the pedal to perform a locking operation, and an end portion of the hinge portion 181 abuts against a lower portion of the inclined plate 171, so that when the hinge portion 181 rotates, the inclined plate 171 can be pushed forward, the inclined plate 171 is rotated clockwise, and accordingly the locking can be achieved by the corresponding structure.

In addition, the outer part of the roller 2 is sleeved with a rubber outer ring 23, so that the wear resistance is improved.

The utility model optimizes the locking and unlocking structure of the all-plastic caster, the locking comprises the locking in the rotation direction and the locking in the rolling of the roller, when the locking is needed, the foot steps down the backward tilting pedal part, the brake pedal can rotate clockwise by taking the second positioning pin as the center, on one hand, the end part of the hinged part can push the lower part of the brake pad forward, the brake pad can rotate clockwise around the first positioning pin, the clamping strips at the two sides of the brake pad can be clamped into the corresponding structure at the inner side of the roller, specifically, the upper bent part at the upper end of the clamping strip can be inserted into the outer gear ring, and the lower bent part at the lower end of the clamping strip can be inserted into the inner gear ring, so as to lock the rolling of the roller; meanwhile, the toothed part of the brake pad can be just inserted into the lower toothed disc part, so that the rotation of the connecting lock cylinder is locked. When the brake pedal needs to be unlocked, the straight section of the upper half part of the pedal part which is tilted backwards can be kicked by the foot hook pedal or the foot tip, so that the brake pedal is reset, and the resetting-assisting elastic sheet can also assist the brake pad to reset in the process.

Finally, it should be noted that: the above directional descriptions of up, down, front, back, clockwise, etc. are all described in the view of fig. 1, and are not intended to limit the technical solution itself. Moreover, the above embodiments are only illustrative of the technical solutions of the present invention, not limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. Plastic truckle, including connecting seat (1) and symmetry set up gyro wheel (2) in connecting seat (1) both sides, its characterized in that: the connecting seat (1) comprises a supporting shell (11) and an arc-shaped base (12) which are matched with each other, a through lock cylinder hole (111) is formed in the supporting shell (11), a connecting lock cylinder (13) is inserted into the lock cylinder hole (111), a central shaft (16) penetrates through the supporting shell (11) and the arc-shaped base (12), two ends of the central shaft (16) are fixedly connected with the roller (2), a first positioning pin (115) and a second positioning pin (116) are inserted into the supporting shell (11), a brake pad (17) is sleeved on the first positioning pin (115), and a brake pedal (18) is sleeved on the second positioning pin (116);

the brake pad (17) comprises a middle inclined plate (171) and clamping strips (172) which are symmetrical on two sides, an inner gear (21) and an outer gear ring (22) are arranged on the inner side of the roller (2), an upper bent part (1721) is integrally formed at the end part, close to the connecting lock column (13), of each clamping strip (172), a lower bent part (1722) is integrally formed at the end part, close to the brake pedal (18), of each clamping strip (172), the upper bent part (1721) can be clamped into the outer gear ring (22), the lower bent part (1722) can be clamped into the inner gear (21), and an elastic restoring piece (1712) is upwards integrally formed in the middle of the inclined plate (171);

the brake pedal (18) comprises a hinge portion (181) hinged with the second positioning pin (116) and a backward warping pedal portion (182) located on the outer side of the supporting shell (11), and the end portion of the hinge portion (181) is abutted to the lower portion of the inclined plate (171).

2. The all-plastic caster wheel as claimed in claim 1, wherein the upper end of the lock cylinder hole (111) is fixedly clamped with a fixed cover plate (14), the middle part of the fixed cover plate (14) is provided with a through hole matched with the connecting lock cylinder (13), the lower end of the fixed cover plate (14) is integrally formed with an upper sawtooth part (141), the connecting lock cylinder (13) is sleeved with a directional disk (15), the top end of the directional disk (15) is integrally formed with a lower sawtooth part (151) matched with the upper sawtooth part (141), and the circumferential direction of the directional disk (15) is integrally formed with a gear part (152).

3. An all-plastic caster according to claim 2, characterised in that the end of the inclined plate (171) near the connecting lock cylinder (13) is integrally formed with a toothed socket portion (1711), said toothed socket portion (1711) matching the gear portion (152).

4. An all-plastic caster according to claim 2, characterised in that said gear portion (152) comprises an upper cog portion (1521) at an upper surface and a lower cog portion (1522) at a lower surface.

5. The all-plastic caster wheel as claimed in claim 1, wherein the supporting shell (11) is provided with mounting grooves (117) at both sides thereof for matching with the brake pad (17), the locking strips (172) are disposed at both sides of the supporting shell (11), the supporting shell (11) is provided with a limit opening (119) for the hinge portion (181) to extend into, and the outer wall of the supporting shell (11) is provided with a limit projection (118) for matching with the upper bending portion (1721).

6. The all-plastic caster wheel according to claim 1, characterised in that the inner wall of the supporting shell (11) is provided with a bulge abutting against the return-aid spring (1712).

7. An all-plastic caster according to claim 2, characterised in that the lower end of said connecting lock cylinder (13) is also fixedly sleeved with a nut (131).

8. The all-plastic caster wheel as claimed in claim 1, wherein the supporting shell (11) is provided with a first mounting hole (112) at the middle part, the arc-shaped base (12) is provided with a second mounting hole (121) at the upper part corresponding to the first mounting hole (112), and the central shaft (16) passes through the first mounting hole (112) and the second mounting hole (121).

9. An all-plastic caster according to claim 1, characterised in that said brake pad (17) is made of stainless steel.

10. The all-plastic caster wheel as claimed in claim 1, wherein the outer surface of the roller (2) is sleeved with a soft plastic outer ring.