CN112757841A - Can accomodate a support wheel - Google Patents
Can accomodate a support wheel Download PDFInfo
- Publication number
- CN112757841A CN112757841A CN202110136633.5A CN202110136633A CN112757841A CN 112757841 A CN112757841 A CN 112757841A CN 202110136633 A CN202110136633 A CN 202110136633A CN 112757841 A CN112757841 A CN 112757841A
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- CN
- China
- Prior art keywords
- rotating shaft
- clamping column
- pedal
- column
- frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
- B60B33/06—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted retractably
- B60B33/066—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted retractably by use of a hinge and lever mechanism to swing wheel upwards relative to wheel mount
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Handcart (AREA)
Abstract
The invention provides a retractable support wheel which comprises a support column, a movable frame fixedly arranged at the bottom of the support column, a support frame rotationally arranged on the movable frame through a first rotating shaft and a roller rotationally arranged on the support frame, wherein a first clamping column and a second clamping column are fixedly arranged on the support frame, a first clamping groove used for supporting the second clamping column from the rear side is formed in the bottom of the rear side of the support frame, a pedal plate is arranged in the movable frame, the pedal plate is rotatably arranged in the movable frame through the second rotating shaft, a second clamping groove used for supporting the first clamping column from the front side is formed in the upper portion of the front end of the pedal plate, a torsion spring is arranged on the second rotating shaft, and the pedal plate is in a forward rotating limit position under the action of the torsion spring. The invention has the use state and the storage state, the structure in the two states is stable and reliable, the conversion of the two states is convenient to operate, the positioning requirements of the two working conditions can be met, and the occupied space can be reduced by the storage.
Description
Technical Field
The invention relates to a foldable support wheel, belonging to the technical field of support wheel structures.
Background
More and more equipment needs to be moved, the support wheel is also more and more widely applied all over the world, and all walks of life can hardly leave the truckle. By the modern times, along with the continuous development of science and technology, equipment is also more and more multi-functional and high in utilization rate, and the support wheel becomes an indispensable part. The support wheel is mainly widely applied to the aspects of a trolley, a movable scaffold, a workshop truck and the like, and the conventional support wheel for carrying goods transportation is generally a single wheel. And generally do not have the function of accomodating, occupation space in the migration process, fragile.
Disclosure of Invention
In view of the disadvantages of the prior art, an object of the present invention is to provide a foldable support wheel, so as to at least solve the technical problem of the prior art that the support wheel cannot be folded.
In order to achieve the purpose, the invention is realized by the following technical scheme: a foldable support wheel comprises a support column, a movable frame fixedly arranged at the bottom of the support column, a support frame rotationally arranged on the movable frame through a first rotating shaft, and a roller rotationally arranged on the support frame, wherein a first clamping column positioned at the front side and a second clamping column positioned at the rear side are fixedly arranged on the support frame, a first clamping groove used for supporting the second clamping column from the rear side to prevent the second clamping column from moving backwards is arranged at the bottom of the rear side of the support frame, a pedal plate is arranged inside the movable frame and rotatably arranged in the movable frame through a second rotating shaft, a pedal part used for pedaling is arranged at the rear end of the pedal plate, a second clamping groove used for supporting the first clamping column from the front side to prevent the first clamping column from moving forwards is arranged at the upper part of the front end of the pedal plate, and a abdicating hole for the first rotating shaft to pass through is arranged at the part of the pedal plate positioned at the rear side, the first rotating shaft is positioned in the abdicating hole,
the rear side of the pedal is connected with the movable frame through a connecting rod assembly, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the second connecting rod is hinged with the movable frame, the other end of the second connecting rod is hinged with one end of the first connecting rod through a hinge shaft, the other end of the first connecting rod is hinged with the pedal,
and a torsional spring is arranged on the second rotating shaft, one end of the torsional spring is pressed against the pedal plate, the other end of the torsional spring is pressed against the first rotating shaft, and the pedal plate is positioned at the limit position of forward rotation under the action of the torsional spring.
Under the normal use state, the support frame rotates backwards around the first rotating shaft until the second clamping column is clamped in the first clamping groove; when the supporting frame needs to be stored, the supporting frame is pulled to rotate forwards around the first rotating shaft until the first clamping column is clamped in the second clamping groove, in the process, the pedal part can be treaded to guide the supporting frame to rotate forwards around the first rotating shaft until the first clamping column is in place, and then the pedal part is loosened to clamp the first clamping column in the second clamping groove; when needing to use once more, trample pedal portion, the running-board is around the rotatory in-process of second pivot, extrudes the second draw-in groove with first joint post to under the action of gravity, the support frame is rotatory to second joint post joint in first draw-in groove after around first pivot.
Preferably, the front side of the support frame is provided with a holding part which is convenient for a user to hold.
Preferably, the support column include outer tube, inner tube and drive lead screw, the inner tube can be followed endwise slip and set up in the outer tube, the bottom of inner tube stretch out the outer tube and with adjustable shelf fixed connection, the inside of inner tube is provided with the nut, the upper portion of drive lead screw is rotatably connected with the top of outer tube, the lower part of drive lead screw stretches into the inner tube inside and passes through threaded connection with the nut, the top fixedly connected with handle of drive lead screw. The screw rod is driven to rotate forwards or reversely by the handle of the operating hand, so that the height of the supporting column can be adjusted.
Preferably, the top end of the driving screw rod is fixedly connected with a containing groove, and the handle is hinged to one end of the containing groove through a hinge shaft. Thereby the hand handle can be accommodated in the accommodating groove when not in use.
Preferably, the support frame include left branch fagging and right branch fagging, the left and right sides of adjustable shelf is located to left branch fagging and right branch fagging, first joint post and second joint post all set up between left branch fagging and right branch fagging and all with left branch fagging and right branch fagging fixed connection.
Preferably, the adjustable shelf comprises a left side plate, a top plate and a right side plate which are connected in sequence, the adjustable shelf is provided with a containing cavity with openings on the front side, the rear side and the lower side, and the pedal plate is arranged in the containing cavity.
The invention has the beneficial effects that:
the invention has the use state and the storage state, the structure in the two states is stable and reliable, the conversion of the two states is convenient to operate, the positioning requirements of the two working conditions can be met, and the occupied space can be reduced by the storage.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of a stowable support wheel of the present invention;
FIG. 2 is a schematic view of a connection structure of a movable frame capable of accommodating a support wheel according to the present invention;
FIG. 3 is a schematic view of a connection structure of a footrest capable of accommodating a support wheel according to the present invention;
FIG. 4 is a schematic view of a supporting column capable of accommodating a supporting wheel according to the present invention;
FIG. 5 is a schematic view of a two-state structure of a retractable stand wheel according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are provided for the purpose of giving a thorough understanding of the present disclosure.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the present invention, which is for purposes of illustration only and is not intended to be in the sole embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1-3, the present invention provides a technical solution: a foldable support wheel comprises a support column 6, a movable frame 1 fixedly arranged at the bottom of the support column 6, a support frame 3 rotatably arranged on the movable frame 1 through a first rotating shaft 21, and a roller 5 rotatably arranged on the support frame 3, wherein a first clamping column 31 positioned at the front side and a second clamping column 32 positioned at the rear side are fixedly arranged on the support frame 3, a first clamping groove 11 used for supporting the second clamping column 32 from the rear side to prevent the second clamping column 32 from moving backwards is arranged at the bottom of the rear side of the support frame 3, a pedal plate 4 is arranged inside the movable frame 1, the pedal plate 4 is rotatably arranged in the movable frame 1 through a second rotating shaft 22, a pedal part 41 used for pedaling is arranged at the rear end of the pedal plate 4, a second clamping groove 42 used for supporting the first clamping column 31 from the front side to prevent the first clamping column 31 from moving forwards is arranged at the upper part of the front end of the pedal plate 4, the part of the pedal 4, which is positioned at the rear side of the second clamping groove, is provided with a yielding hole for the first rotating shaft 21 to pass through, the first rotating shaft 21 is positioned in the yielding hole,
the rear side of the pedal 4 is connected with the movable frame 1 through a connecting rod assembly, the connecting rod assembly comprises a first connecting rod 43 and a second connecting rod 44, one end of the second connecting rod 44 is hinged with the movable frame 1, the other end of the second connecting rod 44 is hinged with one end of the first connecting rod 43 through a hinge shaft, the other end of the first connecting rod 43 is hinged with the pedal 4,
the second rotating shaft 22 is provided with a torsion spring 45, one end of the torsion spring 45 is pressed against the pedal plate 4, the other end of the torsion spring 45 is pressed against the first rotating shaft 21, and the pedal plate 4 is in a forward rotating limit position under the action of the torsion spring 45.
As shown in fig. 5, in a normal use state, the supporting frame 3 rotates backwards around the first rotating shaft 21 until the second engaging column 32 is engaged with the first engaging slot 11; when the support frame 3 needs to be stored, the support frame 3 is pulled to rotate forwards around the first rotating shaft 21 until the first clamping column 31 is clamped in the second clamping groove, in the process, the pedal part 41 can be trampled to guide the support frame 3 to rotate forwards around the first rotating shaft 21 until the first clamping column 31 is in place, and then the pedal part 41 is loosened to clamp the first clamping column 31 in the second clamping groove; when the pedal portion 41 is needed to be used again, the pedal 4 extrudes the second clamping groove from the first clamping column 31 in the process of rotating around the second rotating shaft 22, and the support frame 3 rotates backwards around the first rotating shaft 21 to clamp the second clamping column 32 in the first clamping groove 11 under the action of gravity.
Preferably, the front side of the support frame 3 is provided with a holding part 33 which is convenient for a user to hold.
Preferably, as shown in fig. 4, the supporting column 6 includes an outer tube 61, an inner tube 62 and a driving screw 63, the inner tube 62 is axially slidably disposed in the outer tube 61, a bottom end of the inner tube 62 extends out of the outer tube 61 and is fixedly connected with the movable frame 1, a nut 64 is disposed inside the inner tube 62, an upper portion of the driving screw 63 is rotatably connected with a top end of the outer tube 61, a lower portion of the driving screw 63 extends into the inner tube 62 and is connected with the nut 64 through a thread, and a handle 65 is fixedly connected with a top end of the driving screw 63. The driving screw 63 is driven to rotate forwards or backwards through the operating handle 65, so that the height of the supporting column 6 can be adjusted.
Preferably, the top end of the driving screw 63 is fixedly connected with a containing groove 66, and the handle 65 is hinged to one end of the containing groove 66 through a hinge shaft. So that the handle 65 is received in the receiving groove 66 when not in use.
Preferably, support frame 3 include left branch fagging and right branch fagging, the left and right sides of adjustable shelf 1 is located to left branch fagging and right branch fagging, first joint post 31 and second joint post 32 all set up between left branch fagging and right branch fagging and all with left branch fagging and right branch fagging fixed connection.
Preferably, the movable frame 1 is composed of a left side plate, a top plate and a right side plate which are connected in sequence, the movable frame 1 is provided with a containing cavity with openings on the front side, the rear side and the lower side, and the pedal plate 4 is arranged in the containing cavity.
The invention has the use state and the storage state, the structure in the two states is stable and reliable, the conversion of the two states is convenient to operate, the positioning requirements of the two working conditions can be met, and the occupied space can be reduced by the storage.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.
Claims (7)
1. A stowable support wheel, characterized by: comprises a supporting column, a movable frame fixedly arranged at the bottom of the supporting column, a supporting frame rotationally arranged on the movable frame through a first rotating shaft, and a roller rotationally arranged on the supporting frame, wherein a first clamping column positioned at the front side and a second clamping column positioned at the rear side are fixedly arranged on the supporting frame, a first clamping groove used for supporting the second clamping column from the rear side to prevent the second clamping column from moving backwards is arranged at the bottom of the rear side of the supporting frame, a pedal plate is arranged in the movable frame and can be rotationally arranged in the movable frame through a second rotating shaft, a pedal part used for pedaling is arranged at the rear end of the pedal plate, a second clamping groove used for supporting the first clamping column from the front side to prevent the first clamping column from moving forwards is arranged at the upper part of the front end of the pedal plate, a abdicating hole for the first rotating shaft to pass through is arranged on the part of the rear side of the pedal plate positioned at the rear side of the,
the rear side of the pedal is connected with the movable frame through a connecting rod assembly, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the second connecting rod is hinged with the movable frame, the other end of the second connecting rod is hinged with one end of the first connecting rod through a hinge shaft, the other end of the first connecting rod is hinged with the pedal,
and a torsional spring is arranged on the second rotating shaft, one end of the torsional spring is pressed against the pedal plate, the other end of the torsional spring is pressed against the first rotating shaft, and the pedal plate is positioned at the limit position of forward rotation under the action of the torsional spring.
2. A stowable support wheel according to claim 1, wherein: the front side of the support frame is provided with a holding part which is convenient for a user to hold.
3. A stowable support wheel according to claim 1, wherein: the support column include outer tube, inner tube and drive lead screw, the inner tube can set up in the outer tube along endwise slip, the bottom of inner tube stretch out the outer tube and with adjustable shelf fixed connection, the inside of inner tube is provided with the nut, the upper portion of drive lead screw is rotatably connected with the top of outer tube, the lower part of drive lead screw stretches into the inner tube inside and passes through threaded connection with the nut, the top fixedly connected with handle of drive lead screw.
4. A stowable support wheel according to claim 3, wherein: the top end of the driving screw rod is fixedly connected with an accommodating groove, and the handle is hinged to one end of the accommodating groove through a hinge shaft.
5. A stowable support wheel according to claim 1, wherein: the support frame include left branch fagging and right branch fagging, the left and right sides of adjustable shelf is located to left branch fagging and right branch fagging, first joint post and second joint post all set up between left branch fagging and right branch fagging and all with left branch fagging and right branch fagging fixed connection.
6. A stowable support wheel according to claim 1, wherein: the adjustable shelf comprises left side board, roof and the right side board that connects gradually, the adjustable shelf has equal open-ended holding chamber of front side, rear side and downside, the running-board sets up in this holding intracavity.
7. A stowable support wheel according to claim 1, wherein: under the normal use state, the support frame rotates backwards around the first rotating shaft until the second clamping column is clamped in the first clamping groove; when the supporting frame needs to be stored, the supporting frame is pulled to rotate forwards around the first rotating shaft until the first clamping column is clamped in the second clamping groove, in the process, the pedal part can be treaded to guide the supporting frame to rotate forwards around the first rotating shaft until the first clamping column is in place, and then the pedal part is loosened to clamp the first clamping column in the second clamping groove; when needing to use once more, trample pedal portion, the running-board is around the rotatory in-process of second pivot, extrudes the second draw-in groove with first joint post to under the action of gravity, the support frame is rotatory to second joint post joint in first draw-in groove after around first pivot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110136633.5A CN112757841A (en) | 2021-02-01 | 2021-02-01 | Can accomodate a support wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110136633.5A CN112757841A (en) | 2021-02-01 | 2021-02-01 | Can accomodate a support wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112757841A true CN112757841A (en) | 2021-05-07 |
Family
ID=75704443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110136633.5A Pending CN112757841A (en) | 2021-02-01 | 2021-02-01 | Can accomodate a support wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112757841A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112776535A (en) * | 2021-02-02 | 2021-05-11 | 青岛东陆科技有限公司 | Support rotational positioning structure |
-
2021
- 2021-02-01 CN CN202110136633.5A patent/CN112757841A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112776535A (en) * | 2021-02-02 | 2021-05-11 | 青岛东陆科技有限公司 | Support rotational positioning structure |
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