CN109774379A - A kind of folding trolley case universal wheel - Google Patents
A kind of folding trolley case universal wheel Download PDFInfo
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- CN109774379A CN109774379A CN201910234978.7A CN201910234978A CN109774379A CN 109774379 A CN109774379 A CN 109774379A CN 201910234978 A CN201910234978 A CN 201910234978A CN 109774379 A CN109774379 A CN 109774379A
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- support frame
- rotating arm
- type support
- universal wheel
- rotational positioning
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Abstract
The invention discloses a kind of folding trolley case universal wheels, it is related to trolley case technical field, it solves the problems, such as that universal wheel is easy to be broken when trolley case delivery, the housing interior volume that installation universal wheel ties up can be reduced using foldable structure to greatest extent, improve the dischargeable capacity of chest.The universal wheel includes revolving support frame, rotating arm, T-type support frame, the rotating arm is connected by shaft with the mounting base on revolving support frame, rotating arm can rotate within the scope of 90 ° around the shaft, and the rotational positioning boss of the T-type support frame and the rotational positioning groove one of rotating arm or the cooperation of rotational positioning groove two realize the circumferentially positioned of T-type support frame.External force pulling wheel drives T-type support frame to skid off and be rotated by 90 °, and cooperates rotational positioning boss and rotational positioning groove two, while unclamping positioning pin, and then rotating rotating arm to horizontal position, then locking positioning pin can be realized the folding withdrawal of universal wheel.The present invention is used for trolley case.
Description
Technical field
The present invention relates to trolley case technical field, in particular to a kind of folding trolley case universal wheel.
Background technique
Trolley case is a kind of luggage case for being equipped with pull rod and castor, facilitates when in use, is laborsaving, therefore go on a tour in people,
It is used widely when travelling.Castor used in trolley case generally has rigid castors and two kinds of movable castor, the peace of rigid castors
Dress bracket cannot rotate, therefore direction is not easily controlled when moving.Movable castor, that is, so-called universal wheel refers to installation castor wheel
Bracket can 360 degree rotation in the horizontal direction so that the rotating direction of wheel adapts to the moving direction of chest or load automatically.Mesh
Preceding well known trolley case universal wheel is fixed on cabinet lower surface more, not can be carried out flexible or folds.This trolley case is in machine
When delivery, workers carry's chest and chest transport the place of turning on a moving belt, universal wheel be easy to encounter other chests or
Object, there are the risks that universal wheel is broken.
Chinese patent (application publication number: CN109353171A) discloses a kind of telescopic universal wheel, Chinese patent (Shen
Please publication No.: CN109156954A) a kind of telescopic trolley case convenient for classifying of castor is disclosed, though both structures are equal
The flexible of universal wheel can be achieved, ensure that universal wheel retracts within body or cabinet range when retracting.But in order to avoid chest
The friction on roughness pavement between ground and when by ponding hollow splashing make chest dirty, universal wheel must make when stretching out
Cabinet has certain height from the ground, this prevents the flexible stroke of universal wheel to cause entire telescoping mechanism to tie up case from too small
Body inner space is larger, affects the dischargeable capacity of chest.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of folding trolley case universal wheels, to solve trolley case
The problem of universal wheel may be broken when airport is consigned, while guaranteeing cabinet from the ground existing one when trolley case universal wheel stretches out
Fixed safe altitude, it is as small as possible that when retraction, can make universal wheel tie up housing interior volume again.
The present invention solves the used technical solution of technical problem are as follows: a kind of folding trolley case universal wheel, including return
Turn support frame, rotating arm, T-type support frame, the revolving support frame is equipped with an eccentric mounting base, and mounting base is equipped with shaft
One end of hole two and dowel hole two, the rotating arm is equipped with shaft hole one and arc-shaped dowel hole one, and rotating arm passes through
Shaft is connected with the mounting base of revolving support frame, wears positioning pin among the dowel hole one of rotating arm to fix the rotation of rotating arm
Position, described positioning pin one end are equipped with screw thread, and the other end is equipped with a reducing step, one big at both ends and small in middle of dowel hole.
T-type support frame is installed, T-type support frame can be slided back and forth in the hole of rotating arm inside the rotating arm other end
Dynamic, the outer edge end of rotating arm is respectively equipped with rotational positioning groove one and rotational positioning groove two along axisymmetrical, rotation
Positioning groove one and rotational positioning groove two are in 90 ° of vertical distributions, and it is convex that the T-type support frame is equipped with symmetrical rotational positioning
Platform realizes the circumferential direction of T-type support frame when rotational positioning boss enters in rotational positioning groove one or rotational positioning groove two
Positioning.
Spring is installed, spring inner has a guide spiro rod, and the end of thread of guide spiro rod passes through inside the T-type support frame
The hole of T-type support frame end and rotating arm are connected through a screw thread fixation, and the end face of spring one end and T-type support frame inner hole wall connects
Touching, the other end are contacted with the pilot sleeve covered on guide spiro rod, are separately installed on two symmetrical struts of T-type support frame
Wheel.
Compared with prior art, the beneficial effects of the present invention are: the universal wheel of trolley case can fold and be recovered to case
Within the scope of body, avoids manual handling that trolley case is consigned on airport and when conveyer belt transmits breaks universal wheel, universal
Wheel can guarantee that on the spot there is certain altitude in face to cabinet when opening again, avoid friction of the chest on roughness pavement between ground
Chest is made dirty with splashing when passing through ponding hollow, simultaneously because reducing installation universal wheel to greatest extent using foldable structure and squeezing
The housing interior volume accounted for improves the dischargeable capacity of chest in the identical situation of outer dimension.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that universal wheel of the present invention is opened.
Fig. 2 is the A-A cross-sectional view in Fig. 1.
Fig. 3 is structural schematic diagram when universal wheel of the present invention folds withdrawal.
Fig. 4 is revolving support frame, rotating arm and T-type support frame installation cooperation schematic diagram.
Fig. 5 is trolley case overall structure diagram when universal wheel is opened.
Fig. 6 is that universal wheel folds trolley case overall structure diagram when withdrawing.
In figure: 1- wheel, 2- bearing baffle, 3- screw one, 4- bearing, 5- spring collar, 6- shaft, 7- reducing step,
8- revolving support frame, 9- positioning pin, 10- rotating arm, 11- spring, 12-T type support frame, 13- pilot sleeve, 14- guide spiro rod,
15- rotational positioning boss, 16- rotational positioning groove one, 17- dowel hole one, 18- rotational positioning groove two, 19- shaft hole
One, 20- shaft hole two, 21- dowel hole two, 22- mounting base, 23- pull rod, 24- cabinet.
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawing.
Referring to Fig. 1-6, a kind of folding trolley case universal wheel, including the support of revolving support frame 8, rotating arm 10, T-type
Frame 12, the revolving support frame 8 are equipped with an eccentric mounting base 22, and mounting base 22 is equipped with shaft hole 2 20 and dowel hole
2 21, one end of the rotating arm 10 is equipped with shaft hole 1 and arc-shaped dowel hole 1, and rotating arm 10 passes through shaft 6
It is connected with the mounting base 22 of revolving support frame 8, positioning pin 9 is worn among the dowel hole 1 of rotating arm 10 to fix rotating arm 10
Rotation position, described 9 one end of positioning pin be equipped with screw thread, the other end be equipped with a reducing step 7, one 17 both ends of dowel hole
Big intermediate small, the macropore and positioning pin 9 at both ends cooperate to limit the turned position of rotating arm 10, intermediate arc-shaped small sliding slot
Cooperate with the reducing step 7 of positioning pin, when rotating arm 10 rotates from auxiliary guiding role.
T-type support frame 12 is installed inside 10 other end of rotating arm, T-type support frame 12 can in the hole of rotating arm 10
It slidably reciprocates, the outer edge end of rotating arm 10 is respectively equipped with recessed along the rotational positioning groove 1 of axisymmetrical and rotational positioning
Slot 2 18, rotational positioning groove 1 and rotational positioning groove 2 18 are in 90 ° of vertical distributions, and the T-type support frame 12 is equipped with
Symmetrical rotational positioning boss 15, when rotational positioning boss 15 enters rotational positioning groove 1 or rotational positioning groove 2 18
When middle, the circumferentially positioned of T-type support frame 12 is realized.
Spring 11 is installed inside the T-type support frame 12, there is a guide spiro rod 14 inside spring 11, guide spiro rod 14
The end of thread passes through the hole of 12 end of T-type support frame and rotating arm 10 is connected through a screw thread fixation, 11 one end of spring and T-type support frame
The end face of 12 inner hole walls contacts, and the other end is contacted with the pilot sleeve 13 covered on guide spiro rod 14, the two of T-type support frame 12
Wheel 1 is separately installed on a symmetrical strut.
When universal wheel stretches out normal work, rotating arm 10 is opened as shown in Figure 1, screwed in place pin 9 can fix rotation at this time
Arm 10, T-type support frame 12 are pressed in the hole of rotating arm 10 under the action of spring 11, and rotational positioning boss 15 just into
Enter into rotational positioning groove 1, realizes the circumferentially positioned of T-type support frame 12.When rotating arm 10 and T-type support frame 12 are pressed
After Fig. 1 is fixed, universal wheel can be worked normally at this time.
Universal wheel fold withdraw when in two steps: the first step, pass through manpower draw wheel 1 drive T-type support frame 12 clumps rotation
It is slided outward in the hole of arm 10, spring is compressed, and rotational positioning boss 15 exits rotational positioning groove 1, then turning T-type
Support frame 12, when going to 90 °, rotational positioning boss 15 is just aligned with rotational positioning groove 2 18, is loosed one's grip at this time, T-type branch
Under the rebound effect of spring 11, rotational positioning boss 15 enters in rotational positioning groove 2 18 support 12, and T-type supports at this time
Frame 12 realizes circumferentially fixed when universal wheel is withdrawn.Second step can by the butterfly plectrum of 9 end of manpower rotary positioning pin
Positioning pin 9 is retreated, when at the dowel hole 1 that the reducing step 7 of positioning pin 9 falls back on rotating arm 10, can be rotated rotating arm
10, which fold it, withdraws, and when rotating arm 10 turns to horizontal position, then screwed in place pin 9 can fix rotating arm 10, realize
The withdrawal and fixation of universal wheel.Universal wheel retracted state is as shown in Figure 3.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (3)
1. a kind of folding trolley case universal wheel, including revolving support frame (8), rotating arm (10), T-type support frame (12),
It is characterized by: the revolving support frame (8) is equipped with an eccentric mounting base (22), mounting base (22) is equipped with shaft hole two
(20) and dowel hole two (21), one end of the rotating arm (10) are equipped with shaft hole one (19) and arc-shaped dowel hole one
(17), rotating arm (10) is connected by shaft (6) with the mounting base (22) of revolving support frame (8), the positioning pin of rotating arm (10)
Positioning pin (9) is worn among hole one (17) to fix the rotation position of rotating arm (10), described positioning pin (9) one end is equipped with screw thread,
The other end is equipped with a reducing step (7), dowel hole one (17) big at both ends and small in middle.
2. a kind of folding trolley case universal wheel according to claim 1, it is characterised in that: the rotating arm (10)
It is equipped with inside the other end T-type support frame (12), T-type support frame (12) can slidably reciprocate in the hole of rotating arm (10), rotation
The outer edge end of arm (10) is respectively equipped with rotational positioning groove one (16) and rotational positioning groove two (18) along axisymmetrical,
Rotational positioning groove one (16) and rotational positioning groove two (18) are in 90 ° of vertical distributions, and the T-type support frame (12) is equipped with pair
The rotational positioning boss (15) of title.
3. a kind of folding trolley case universal wheel according to claim 1, it is characterised in that: the T-type support frame
(12) internal to be equipped with spring (11), have a guide spiro rod (14) inside spring (11), the end of thread of guide spiro rod (14) passes through T
The hole of type support frame (12) end and rotating arm (10) are connected through a screw thread fixation, spring (11) one end and T-type support frame (12)
The end face of inner hole wall contacts, and the other end is contacted with the pilot sleeve (13) covered on guide spiro rod (14), in T-type support frame (12)
Two symmetrical struts on be separately installed with wheel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234978.7A CN109774379B (en) | 2019-03-27 | 2019-03-27 | Universal wheel for foldable draw-bar box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234978.7A CN109774379B (en) | 2019-03-27 | 2019-03-27 | Universal wheel for foldable draw-bar box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109774379A true CN109774379A (en) | 2019-05-21 |
| CN109774379B CN109774379B (en) | 2023-08-18 |
Family
ID=66491111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910234978.7A Active CN109774379B (en) | 2019-03-27 | 2019-03-27 | Universal wheel for foldable draw-bar box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109774379B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109774379B (en) | 2023-08-18 |
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