CN211166241U

CN211166241U - Wheel connection structure

Info

Publication number: CN211166241U
Application number: CN201921565667.0U
Authority: CN
Inventors: 刘峰; 印海军
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-08-04
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a wheel connection structure, it includes the connecting axle, the crotch that the connecting axle rotated to be connected, universal wheel and unblock subassembly, the draw-in groove of seting up along circumference has on the connecting axle, unblock subassembly includes the lockpin of sliding connection in the crotch, an elastic component for making the lockpin reset and be used for restricting the lockpin in the gliding pin of crotch, be equipped with the separation groove on the lockpin, the part outside the separation groove is spacing section, extrude the lockpin, make the lockpin slide in the crotch, the relative position of transform separation groove and draw-in groove, make separation groove and draw-in groove dislocation set, spacing section has the part at least and is located the draw-in groove, wheel joint subassembly and wheel subassembly are in the lock-out state this moment, both can; promote the lockpin and remove to the deeper of second mounting hole, break away from the groove and remove to relative with the draw-in groove from misplacing with the draw-in groove, spacing section leaves the draw-in groove completely this moment, and wheel connection structure just is in the unblock state, and the connecting axle can easily be followed and extracted in the first mounting hole.

Description

Wheel connection structure

Technical Field

The utility model belongs to the technical field of children's articles for use, in particular to wheel connection structure.

Background

The bassinet can supply infant seat to lie, alleviates caregiver's burden, and current bassinet turns to when advancing in order to promote conveniently, and the wheel adopts universal wheel subassembly more, and conveniently accomodates from the bassinet, or can change by oneself and do not need professional assembly and disassembly tools's angle by the user when the impaired needs of wheel are changed, needs bare-handed quick assembly disassembly between universal wheel subassembly and the frame. At present, when the quick-release structure between a wheel assembly and a wheel joint assembly is locked, the wheel assembly is rotatably connected to a frame, and when the quick-release structure is unlocked, a sleeved type similar to a hoop is adopted, or a multi-module clamping type is disclosed in patent application with publication number CN107685596A, or a plug-in type is disclosed in patent application with publication number CN203651859U, but the quick-release structure has the problems of not compact connection structure, complex structure and the like.

Disclosure of Invention

The utility model aims at providing a compact structure is simple and can realize wheel joint subassembly and wheel subassembly quick assembly disassembly's wheel connection structure.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a wheel connecting structure has an unlocking state and a locking state, and comprises a wheel joint component and a wheel component rotationally connected with the wheel joint component, wherein the wheel joint component comprises a connecting shaft, the wheel component comprises a fork frame rotationally connected with the connecting shaft, a universal wheel pivotally connected to the fork frame, and an unlocking component arranged in the fork frame and matched with the connecting shaft so as to rapidly disassemble and assemble the wheel joint component and the wheel component, a clamping groove formed along the circumferential direction is formed in the connecting shaft, the unlocking component comprises a lock pin slidably connected in the fork frame, an elastic component used for resetting the lock pin and a pin used for limiting the lock pin to slide in the fork frame, a disengagement groove is formed in the surface of the lock pin, and the disengagement groove is divided into a limiting section along the surface part of the lock pin outside the extending direction of the pin shaft, when the wheel connecting structure is in a locking state, the separation groove and the clamping groove are arranged in a staggered mode, at least one part of the limiting section is located in the clamping groove, when the wheel connecting structure is in an unlocking state, the separation groove is opposite to the clamping groove, and the limiting section completely leaves the clamping groove.

Preferably, a first mounting hole for mounting the connecting shaft is formed in the end face, facing the wheel joint assembly, of the fork frame, a second mounting hole for mounting the lock pin and the elastic piece is formed in the side wall of the fork frame, and the rotating axis of the connecting shaft in the first mounting hole is perpendicular to the sliding track of the lock pin in the second mounting hole.

Further, the elastic member is located deeper than the lock pin in the second mounting hole.

Preferably, a limit groove is formed in the circumferential surface of the lock pin, one end portion of the pin is fixed to the fork frame, and the other end portion of the pin is partially arranged in the limit groove all the time.

Furthermore, a third mounting hole for fixing a pin is formed in the end face, facing the wheel joint assembly, of the fork frame, one end portion of the pin is fixed in the third mounting hole, and the other end portion of the pin is always partially arranged in the limiting groove.

Furthermore, the limiting groove is an elongated groove, and the length direction of the limiting groove is parallel to the axial direction of the lock pin.

Further, the limiting groove penetrates through the radial direction of the lock pin.

Preferably, the clamping groove surrounds the connecting shaft and is annular, and one side of the longitudinal section of the clamping groove is arc-shaped.

Preferably, the pin is arranged in parallel with the connecting shaft.

Furthermore, the fork frame is provided with a mounting boss on the inner side wall for forming the first mounting hole, and the wheel assembly further comprises a sealing ring sleeved on the connecting shaft and positioned on the mounting boss and a compression ring positioned above the sealing ring.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model discloses utilize unblock subassembly cooperation connecting axle to realize that wheel connection structure switches between unblock state and locking state, the integrated level is high, compact structure is simple, the production of being convenient for, the extrusion lockpin makes the lockpin slide in the second mounting hole, the relative position of transform disengagement groove and draw-in groove makes disengagement groove and draw-in groove dislocation set, spacing section has at least partly to be located the draw-in groove, at this moment because spacing section card is in the draw-in groove, the connecting axle can't be extracted from the first mounting hole, wheel joint subassembly and wheel subassembly rotate to be connected; promote the lockpin and remove to the deeper of second mounting hole, break away from the groove and remove to relative with the draw-in groove from misplacing with the draw-in groove, spacing section leaves the draw-in groove completely this moment, and wheel connection structure just is in the unblock state, and the connecting axle can easily be followed and extracted in the first mounting hole, and wheel joint Assembly breaks away from with the wheel subassembly to conveniently realize the dismantlement of universal wheel.

Drawings

FIG. 1 is a schematic structural view of a wheel joint assembly and wheel assembly in an unlocked state;

FIG. 2 is a cross-sectional view of the wheel joint assembly and wheel assembly in an unlocked condition;

FIG. 3 is a schematic structural view of the wheel joint assembly and wheel assembly in a locked condition;

FIG. 4 is a cross-sectional view of the wheel joint assembly and wheel assembly in a locked condition;

FIG. 5 is an exploded view of the wheel attachment structure;

FIG. 6 is a top view of the wheel assembly in the unlocked position;

FIG. 7 is a top view of the wheel assembly in the locked condition;

FIG. 8 is a perspective view of the locking pin;

FIG. 9 is a cross-sectional view of the locking pin;

FIG. 10 is a partial view A of FIG. 2;

in the above drawings: 1. a wheel joint assembly; 11. a connecting shaft; 111. a card slot; 2. a wheel assembly; 21. a fork; 22. a universal wheel; 211. a first mounting hole; 212. a second mounting hole; 213. a third mounting hole; 2111. mounting a boss; 2112. a seal ring; 2113. a compression ring; 3. an unlocking assembly; 31. a lock pin; 32. an elastic member; 33. a pin; 311. a disengagement groove; 312. a limiting section; 313. a limiting groove.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings.

As shown in fig. 1 to 4, the wheel connecting structure has an unlocked state and a locked state, and as shown in fig. 5, the wheel connecting structure includes a wheel joint assembly 1, a wheel assembly 2 rotatably connected to the wheel joint assembly 1, and an unlocking assembly 3 for quickly disassembling and assembling the wheel joint assembly 1 and the wheel assembly 2.

The wheel joint assembly 1 comprises a connecting shaft 11; the wheel assembly 2 comprises a fork frame 21 rotationally connected with the connecting shaft 11, a universal wheel 22 pivotally connected to the fork frame 21, and an unlocking assembly 3 arranged in the fork frame 21 and matched with the connecting shaft 11 so as to rapidly disassemble and assemble the wheel joint assembly 1 and the wheel assembly 2, wherein the connecting shaft 11 is provided with a clamping groove 111 arranged along the circumferential direction, the clamping groove 111 surrounds the connecting shaft 11 and is annular, and one side of the longitudinal section of the clamping groove is arc-shaped; the unlocking assembly 3 comprises a lock pin 31 connected in the fork frame 21 in a sliding manner, an elastic piece 32 used for resetting the lock pin 31 and a pin 33 used for limiting the lock pin 31 in the fork frame 21 in a sliding manner, wherein a disengagement groove 311 is formed on the surface of the lock pin 31, and the surface part of the lock pin 31, which is beyond the extension direction of the lock pin 31, of the disengagement groove 311 is a limiting section 312.

The end surface of the fork frame 21 facing the wheel joint assembly 1 is provided with a first mounting hole 211 for mounting the connecting shaft 11, the side wall of the fork frame 21 is provided with a second mounting hole 212 for mounting the lock pin 31 and the elastic element 32, and the rotation axis of the connecting shaft 11 in the first mounting hole 211 is perpendicular to the sliding track of the lock pin 31 in the second mounting hole 212. The elastic member 32 is located deeper in the second mounting hole 212 than the lock pin 31. An installation boss 2111 is formed on the inner side wall of the fork frame 21 for forming the first installation hole 211, and the wheel assembly 2 further comprises a sealing ring 2112 which is sleeved on the connecting shaft 11 and is positioned on the installation boss 2111 and a limiting ring 2113 which is positioned above the sealing ring 2112.

The lock pin 31 has a stopper groove 313 formed on the circumferential surface thereof, and one end of the pin 33 is fixed to the yoke 21 and the other end thereof is always partially disposed in the stopper groove 313. A third mounting hole 213 for fixing the pin 33 is formed in an end surface of the fork 21 facing the wheel joint assembly 1, and one end portion of the pin 33 is fixed in the third mounting hole 213 and the other end portion thereof is always partially disposed in the stopper groove 313. The stopper groove 313 is a long groove, and the length direction thereof is parallel to the axial direction of the lock pin 31. The stopper groove 313 penetrates the lock pin 31 in the radial direction. The pin 33 is disposed parallel to the connecting shaft 11, i.e., the axis of the third mounting hole 213 is parallel to the axis of the first mounting hole 211.

The working principle of the wheel connecting structure is as follows:

when the wheel 22 connection structure is in a locked state, the elastic member 32 is pressed on the lock pin 31, the limiting section 312 of the lock pin 31 is limited in the clamping groove 111, the disengaging groove 311 and the clamping groove 111 are arranged in a staggered manner, at this time, the connecting shaft 11 cannot be pulled out from the first mounting hole 211 because the limiting section 312 is clamped in the clamping groove 111, when the wheel connector assembly 1 and the wheel assembly 2 need to be separated, the lock pin 31 is extruded from the opening of the second mounting hole 212, the lock pin 31 is pushed into the deep part of the second mounting hole 212 until the disengaging groove 311 is opposite to the clamping groove 111, the limiting section 312 completely leaves the clamping groove 111, at this time, the wheel 22 connection structure is in an unlocked state, the connecting shaft 11 can be easily pulled out from the first mounting hole 211, the pin 33 is fixed in the fork frame third mounting hole 213 in the process, but moves from one end part of the limiting groove 313 to the other end part relative to the lock pin 31, the pin 33 limits the, and will not pop out of the second mounting hole 212.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A wheel connecting structure having an unlocked state and a locked state, comprising a wheel joint assembly (1) and a wheel assembly (2) rotatably connected to the wheel joint assembly (1), the wheel joint assembly (1) including a connecting shaft (11), the wheel assembly (2) including a yoke (21) rotatably connected to the connecting shaft (11), a universal wheel (22) pivotally connected to the yoke (21), and an unlocking assembly (3) provided in the yoke (21) and engaged with the connecting shaft (11) to rapidly disassemble and assemble the wheel joint assembly (1) and the wheel assembly (2), characterized in that: the connecting shaft (11) is provided with a clamping groove (111) which is formed along the circumferential direction, the unlocking assembly (3) comprises a lock pin (31) which is connected in the fork frame (21) in a sliding manner, an elastic piece (32) which is used for resetting the lock pin (31) and a pin (33) which is used for limiting the lock pin (31) to slide in the fork frame (21), a disengaging groove (311) is formed in the surface of the lock pin (31), the disengaging groove (311) is a limiting section (312) on the surface of the lock pin (31) except the extending direction of the lock pin (31), when the wheel connecting structure is in a locking state, the disengaging groove (311) and the clamping groove (111) are arranged in a staggered manner, at least part of the limiting section (312) is positioned in the clamping groove (111), and when the wheel connecting structure is in an unlocking state, the disengaging groove (311) is opposite to the clamping groove (111), the limiting section (312) completely leaves the clamping groove (111).

2. The wheel connecting structure according to claim 1, wherein: the end face, facing the wheel joint assembly (1), of the fork frame (21) is provided with a first mounting hole (211) used for mounting the connecting shaft (11), the side wall of the fork frame (21) is provided with a second mounting hole (212) used for mounting the lock pin (31) and the elastic piece (32), and the rotating axis of the connecting shaft (11) in the first mounting hole (211) is perpendicular to the sliding track of the lock pin (31) in the second mounting hole (212).

3. The wheel connecting structure according to claim 2, wherein: the elastic member (32) is located deeper in the second mounting hole (212) than the lock pin (31).

4. The wheel connecting structure according to claim 1, wherein: the circumferential surface of the lock pin (31) is provided with a limiting groove (313), one end part of the pin (33) is fixed on the fork frame (21), and the other end part of the pin is always partially arranged in the limiting groove (313).

5. The wheel connecting structure according to claim 4, wherein: the end face, facing the wheel joint assembly (1), of the fork frame (21) is provided with a third mounting hole (213) used for fixing a pin (33), one end portion of the pin (33) is fixed in the third mounting hole (213), and the other end portion of the pin is provided with a part arranged in the limiting groove (313) all the time.

6. The wheel connecting structure according to claim 4, wherein: the limiting groove (313) is a long groove, and the length direction of the limiting groove is parallel to the axial direction of the lock pin (31).

7. The wheel connecting structure according to claim 4, wherein: the limiting groove (313) penetrates through the radial direction of the lock pin (31).

8. The wheel connecting structure according to claim 1, wherein: the clamping groove (111) surrounds the connecting shaft (11) and is annular, and the longitudinal section of the clamping groove is arc-shaped on one side.

9. The wheel connecting structure according to claim 1, wherein: the pin (33) is arranged in parallel with the connecting shaft (11).

10. The wheel connecting structure according to claim 2, wherein: the fork frame (21) is provided with a mounting boss (2111) on the inner side wall for forming the first mounting hole (211), and the wheel assembly (2) further comprises a sealing ring (2112) which is sleeved on the connecting shaft (11) and is positioned on the mounting boss (2111) and a limiting ring (2113) which is positioned above the sealing ring (2112).