CN109941041A - A kind of castor being equipped with expansion sleeve - Google Patents
A kind of castor being equipped with expansion sleeve Download PDFInfo
- Publication number
- CN109941041A CN109941041A CN201910173996.9A CN201910173996A CN109941041A CN 109941041 A CN109941041 A CN 109941041A CN 201910173996 A CN201910173996 A CN 201910173996A CN 109941041 A CN109941041 A CN 109941041A
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- Prior art keywords
- expansion
- sleeve
- expansion sleeve
- castor
- screw rod
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- 235000004443 Ricinus communis Nutrition 0.000 title claims abstract description 55
- 238000007373 indentation Methods 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 abstract description 5
- 240000000528 Ricinus communis Species 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The present invention provides a kind of castors for being equipped with expansion sleeve, it includes the sleeve that bottom offers threaded hole, its bottom for being fixedly connected on car body, the threaded one end of screw rod is connected to the bottom of sleeve, the other end of screw rod is fixedly connected on attachment base and perpendicular to attachment base, positioning sleeve is socketed on screw rod, castor component is fixedly connected on attachment base, expansion sleeve ontology includes interior expansion sleeve and outer expansion sleeve, interior expansion sleeve is placed on positioning sleeve, outer expansion sleeve is placed on screw rod, outer expansion sleeve includes multiple equally distributed expansion side plates of the circumferential direction around interior expansion sleeve, the bottom of expansion side plate opens up the first tapered indentations that the top-direction of oriented expansion side plate extends.The present invention adds expansion sleeve in caster device, so that thus, the present invention improves the earthquake-proof function and structural stability of castor compared to the prior art but also the connection of sleeve and screw rod is more stable while this device shock-proof effect with higher.
Description
Technical field
The present invention relates to castor fields, in particular to a kind of castor for being equipped with expansion sleeve.
Background technique
The type of castor has very much, such as movable castor and rigid castors.Movable castor also with regard to the universal wheel described in us,
Its structure allows 360 degree rotation；Rigid castors are also direction-caster, it does not have rotational structure, are not able to rotate.Usually two kinds
Castor is typically all collocation, for example the structure of trolley is two, front directional wheel, and back is two close to push handrail
A universal wheel.
The range of castor application is very wide, and the caster device of outdoor application is easy cracking, phase due to long-term road bump
The frequency replaced for the castor that laboratory uses is very high.
Summary of the invention
In consideration of it, the present invention adds expansion sleeve in caster device, so that this device shock-proof effect with higher is same
When but also the connection of sleeve and screw rod is more stable, improve the earthquake-proof function and structural stability of castor.
The present invention provides a kind of castors for being equipped with expansion sleeve comprising and bottom offers the sleeve of threaded hole, Gu
Surely it is connected to the bottom of car body, the threaded one end of screw rod is connected to the bottom of sleeve, and the other end of screw rod is fixedly connected on connection
On seat and perpendicular to attachment base, positioning sleeve is socketed on screw rod, and castor component is fixedly connected on attachment base, expansion sleeve ontology packet
Interior expansion sleeve and outer expansion sleeve are included, interior expansion sleeve is placed on positioning sleeve, and outer expansion sleeve is placed on screw rod, and outer expansion sleeve includes multiple
Around the equally distributed expansion side plate of the circumferential direction of interior expansion sleeve, the bottom for expanding side plate opens up the top-direction of oriented expansion side plate
The first tapered indentations extended, the length direction of the first tapered indentations are parallel to the axial direction of screw rod.First tapered indentations are by rectangle
Expansion plate is divided into identical two region of area.
Expansion sleeve covers the border of screw rod, so that there are extruding forces between screw rod and sleeve, improves the secured of structure
Degree, the first tapered indentations and the second tapered indentations provide effective cushion space to screw rod and sleeve again, substantially increase foot
The cushion performance of wheel apparatus.
It is provided by the present invention it is a kind of be equipped in the castor of expansion sleeve, expansion sleeve is added in caster device so that this
But also the connection of sleeve and screw rod is more stable while device shock-proof effect with higher, the vibration strength of castor is improved
Energy and structural stability.
Thus, mainly had compared to the prior art using a kind of castor for being equipped with expansion sleeve of the present embodiment following excellent
Point:
1) extruding force that expansion sleeve generates screw rod and sleeve improves the firmness and stability of structure.
2) tapered indentations being arranged in expansion sleeve improve the cushion performance of caster device.
3) it is suitable for bumpy road, long service life.
Further, the outer diameter of expansion sleeve ontology is greater than the internal diameter of sleeve.
In a kind of above-mentioned castor for being equipped with expansion sleeve, as further embodiment, when the outer diameter of expansion sleeve ontology
Greater than sleeve internal diameter when could generate extruding force.
Further, expansion sleeve ontology is square body or cylindrical body.
In a kind of above-mentioned castor for being equipped with expansion sleeve, as further and more specifically scheme, square body, circle
Cylinder all matches with the shape of sleeve.
Further, the second tapered indentations are formed per between two adjacent expansion side plates, the second tapered indentations are located at square column
The edge of body, the second tapered indentations be opened in expansion side plate top, and from the top of expansion side plate to expansion side plate bottom
Portion direction extends.
In a kind of above-mentioned castor for being equipped with expansion sleeve, as further embodiment, the second tapered indentations are provided
The space for squeezing and buffering.
Further, expansion side plate is the rectangular expansion plate opened up there are two fillet surface, and it is swollen that two fillet surfaces are located at rectangle
The opposite sides of the width direction of swollen plate.
In a kind of above-mentioned castor for being equipped with expansion sleeve, as further embodiment, due to four blocks of rectangular expansion plates
Interior expansion sleeve surface can be attached under the action of extruding force, in what fillet surface made that four blocks of rectangular expansion plates are more bonded be extruded in
Expansion sleeve surface.
Further, the length direction of the first tapered indentations is parallel to the axial direction of screw rod.
In a kind of above-mentioned castor for being equipped with expansion sleeve, as further embodiment, the axial direction for being parallel to screw rod is set
Set extruding force is distributed more uniform.
Further, rectangular expansion plate is divided into identical two region of area by the first tapered indentations.
In a kind of above-mentioned castor for being equipped with expansion sleeve, as further embodiment, the cushion effect when being impacted
It can be evenly distributed in different regions.
Further, positioning sleeve is location nut.
In a kind of above-mentioned castor for being equipped with expansion sleeve, as further embodiment, since screw surface is equipped with outer
Screw thread position using nut more particularly suitable.
Further, the outer wall of rectangular expansion plate is provided with multiple salient points.
In a kind of above-mentioned castor for being equipped with expansion sleeve, as further embodiment, salient point increase expansion sleeve with
Frictional force between sleeve.
Further, castor component includes connecting plate, two blocks of side plates, wheel shaft and idler wheel, and connecting plate rotation is connected to connection
Seat, two blocks of side plates are divided into the two sides of connecting plate, and wheel shaft is fixedly connected between two blocks of side plates, and idler wheel is socketed on wheel shaft.
In a kind of above-mentioned castor for being equipped with expansion sleeve, as further embodiment, such castor modular construction letter
Singly it is readily produced.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram for a kind of castor for being equipped with expansion sleeve that embodiment provides in the present invention.
Fig. 2 is a kind of structural schematic diagram for a kind of castor for being equipped with expansion sleeve that embodiment provides in the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Embodiment one:
Referring to Fig. 1 and Fig. 2, a kind of castor for being equipped with expansion sleeve of the offer of the embodiment of the present invention one is provided in figure,
Including sleeve 1, the bottom of sleeve 1 offers threaded hole 11, and sleeve 1 is fixedly connected on the bottom of car body, the threaded one end of screw rod 2
It is connected to the bottom of sleeve 1, the other end of screw rod 2 is fixedly connected on attachment base 3 and perpendicular to attachment base 3, and 21 sets of positioning sleeve
It connects on screw rod 2, castor component 4 is fixedly connected on attachment base 3.
Expansion sleeve ontology 5 comprising the outer diameter of interior expansion sleeve 6 and outer expansion sleeve 7, expansion sleeve ontology 5 is greater than the interior of sleeve 1
Diameter, interior expansion sleeve 6 are placed on positioning sleeve 21, and outer expansion sleeve 7 is placed on screw rod 2, and outer expansion sleeve 7 includes multiple around interior expansion sleeve
The equally distributed expansion side plate 71 of 6 circumferential direction, the top-direction that the bottom of expansion side plate 71 opens up oriented expansion side plate 71 extend
The first tapered indentations 72, the length direction of the first tapered indentations 72 is parallel to the axial direction of screw rod 2, and expansion sleeve ontology 5 is square column
Body or cylindrical body.
The second tapered indentations 73 are formed per between two adjacent expansion side plates 71, the second tapered indentations 73 are located at square body 5
Edge, the second tapered indentations 73 be opened in expansion side plate 71 top, and from the top of expansion side plate 71 to expansion side plate
71 bottom direction extends.Expansion side plate 71 is the rectangular expansion plate opened up there are two fillet surface, and two fillet surfaces are located at rectangle
Rectangular expansion plate 71 is divided into identical twoth area of area by the opposite sides of the width direction of expansion plate 71, the first tapered indentations 72
Domain, positioning sleeve 21 are location nut, and the outer wall of rectangular expansion plate 71 is provided with multiple salient points.
Castor component 4 includes 41, two blocks of side plates 42 of connecting plate, wheel shaft 43 and idler wheel 44, and the rotation of connecting plate 41 is connected to
Joint chair 3, two blocks of side plates 42 are divided into the two sides of connecting plate 41, and wheel shaft 43 is fixedly connected between two blocks of side plates 42, and 44 sets of idler wheel
It is connected to wheel shaft 43.
Expansion sleeve ontology 5 covers the border of screw rod 2, so that there are extruding force between screw rod 2 and sleeve 1, raising finishes
It is empty that the firmness of structure, the first tapered indentations 72 and the second tapered indentations 73 provide effective buffering to screw rod 2 and sleeve 1 again
Between, substantially increase the cushion performance of caster device.
It is provided by the present invention it is a kind of be equipped in the castor of expansion sleeve, expansion sleeve is added in caster device so that this
But also the connection of sleeve and screw rod is more stable while device shock-proof effect with higher, the vibration strength of castor is improved
Energy and structural stability.
Thus, mainly had compared to the prior art using a kind of castor for being equipped with expansion sleeve of the present embodiment following excellent
Point:
1) extruding force that expansion sleeve generates screw rod and sleeve improves the firmness and stability of structure.
2) tapered indentations being arranged in expansion sleeve improve the cushion performance of caster device.
3) it is suitable for bumpy road, long service life.
Embodiment two:
Referring to Fig. 1 and Fig. 2, it is shown in figure in a kind of castor for being equipped with expansion sleeve provided by Embodiment 2 of the present invention,
The present embodiment be also further made that on the basis of the various embodiments described above it is following as an improved technical scheme: in connecting plate
41 and the outside of attachment base 3 install the second expansion sleeve, including connecting plate 41 and attachment base 3 are protected together, further increase
The firmness and cushion performance of castor.
Embodiment three:
Referring to Fig. 1 and Fig. 2, in a kind of castor for being equipped with expansion sleeve that the offer of the embodiment of the present invention three is provided in figure,
The present embodiment be also further made that on the basis of the various embodiments described above it is following as an improved technical scheme: 42 He of side plate
Connection type between wheel shaft 43 uses detachably connected mode, is convenient for changing idler wheel 44.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of castor for being equipped with expansion sleeve characterized by comprising
The bottom of sleeve (1), the sleeve (1) offers threaded hole (11), and the sleeve (1) is fixedly connected on the bottom of car body
Portion；
Screw rod (2), one end are threadedly connected to the bottom of the sleeve (1), and the other end of the screw rod (2) is fixedly connected on company
On joint chair (3) and perpendicular to the attachment base (3), positioning sleeve (21) is socketed on the screw rod (2)；
Castor component (4) is fixedly connected with the attachment base (3)；
Expansion sleeve ontology (5) comprising interior expansion sleeve (6) and outer expansion sleeve (7), the interior expansion sleeve (6) are placed on the positioning
It covers on (21), the outer expansion sleeve (7) is placed on the screw rod (2), and the outer expansion sleeve (7) includes multiple around described interior swollen
The bottom of the equally distributed expansion side plate (71) of the circumferential direction of expansion set (6), expansion side plate (71) opens up the oriented expansion side
The first tapered indentations (72) that the top-direction of plate (71) extends.
2. a kind of castor for being equipped with expansion sleeve according to claim 1, which is characterized in that the expansion sleeve ontology (5)
Outer diameter be greater than the sleeve (1) internal diameter.
3. a kind of castor for being equipped with expansion sleeve according to claim 1 or 2, which is characterized in that the expansion sleeve ontology
It (5) is square body or cylindrical body.
4. a kind of castor for being equipped with expansion sleeve according to claim 1, which is characterized in that per the two adjacent expansions
It is formed between side plate (71) the second tapered indentations (73), second tapered indentations (73) are located at the corner of the square body (5)
Place, second tapered indentations (73) are opened in the top of expansion side plate (71), and by the top of expansion side plate (71)
Portion extends to the bottom direction of expansion side plate (71).
5. a kind of castor for being equipped with expansion sleeve according to claim 1, which is characterized in that the expansion side plate (71) is
The rectangular expansion plate there are two fillet surface is opened up, described two fillet surfaces are located at the width direction of the rectangular expansion plate (71)
Opposite sides.
6. a kind of castor for being equipped with expansion sleeve according to claim 1, which is characterized in that first tapered indentations
(72) length direction is parallel to the axial direction of the screw rod (2).
7. a kind of castor for being equipped with expansion sleeve according to claim 1 or 6, which is characterized in that first taper lacks
The rectangular expansion plate (71) is divided into identical two region of area by mouth (72).
8. a kind of castor for being equipped with expansion sleeve according to claim 1, which is characterized in that the positioning sleeve (21) is fixed
Position nut.
9. a kind of castor for being equipped with expansion sleeve according to claim 1, which is characterized in that the rectangular expansion plate (71)
Outer wall be provided with multiple salient points.
10. a kind of castor for being equipped with expansion sleeve according to claim 1, which is characterized in that castor component (4) packet
Connecting plate (41), two pieces of side plates (42), wheel shaft (43) and idler wheel (44) are included, connecting plate (41) rotation is connected to the connection
Seat (3), two blocks of side plates (42) are divided into the two sides of the connecting plate (41), and the wheel shaft (43) is fixedly connected on described two
Between block side plate (42), the idler wheel (44) is socketed on the wheel shaft (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173996.9A CN109941041A (en) | 2019-03-07 | 2019-03-07 | A kind of castor being equipped with expansion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173996.9A CN109941041A (en) | 2019-03-07 | 2019-03-07 | A kind of castor being equipped with expansion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109941041A true CN109941041A (en) | 2019-06-28 |
Family
ID=67009268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910173996.9A Pending CN109941041A (en) | 2019-03-07 | 2019-03-07 | A kind of castor being equipped with expansion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109941041A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3131525A1 (en) * | 1981-08-08 | 1983-03-03 | Paul Vom Stein & Co, 5632 Wermelskirchen | Releasable attachment device for castors |
| CN202130257U (en) * | 2011-07-12 | 2012-02-01 | 潮安县彩塘世纪顺兴发医疗器械厂 | Imbedded type expansion mounting device for castors |
| CN104337645A (en) * | 2013-07-30 | 2015-02-11 | 扬州市江庆万向轮厂 | Medical truckle mechanism |
| CN210191021U (en) * | 2019-03-07 | 2020-03-27 | 兴锋脚轮(江苏)有限公司 | Caster with expansion sleeve |
-
2019
- 2019-03-07 CN CN201910173996.9A patent/CN109941041A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3131525A1 (en) * | 1981-08-08 | 1983-03-03 | Paul Vom Stein & Co, 5632 Wermelskirchen | Releasable attachment device for castors |
| CN202130257U (en) * | 2011-07-12 | 2012-02-01 | 潮安县彩塘世纪顺兴发医疗器械厂 | Imbedded type expansion mounting device for castors |
| CN104337645A (en) * | 2013-07-30 | 2015-02-11 | 扬州市江庆万向轮厂 | Medical truckle mechanism |
| CN210191021U (en) * | 2019-03-07 | 2020-03-27 | 兴锋脚轮(江苏)有限公司 | Caster with expansion sleeve |
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