CN106724199B - Castor for furniture bottom - Google Patents
Castor for furniture bottom Download PDFInfo
- Publication number
- CN106724199B CN106724199B CN201611185110.5A CN201611185110A CN106724199B CN 106724199 B CN106724199 B CN 106724199B CN 201611185110 A CN201611185110 A CN 201611185110A CN 106724199 B CN106724199 B CN 106724199B
- Authority
- CN
- China
- Prior art keywords
- support base
- idler wheel
- telescopic rod
- furniture
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B91/00—Feet for furniture in general
- A47B91/06—Gliders or the like
Abstract
This patent discloses a kind of castors for furniture bottom, it is related to furniture part field, including connecting seat, the supporting rack being rotatably connected on by the first rotating shaft being vertically arranged below connecting seat, it is rotatably connected on the idler wheel on supporting rack by the second horizontally disposed shaft, the support base that length is vertically arranged is provided on supporting rack, stretching structure is equipped in idler wheel, stretching structure includes connecting layer, radially telescopic telescopic rod between jacket layer and several connection connecting layers and jacket layer, connecting layer is fixedly connected with second shaft, jacket layer is circumferentially with permanent magnet close to telescopic rod side, connecting layer close to telescopic rod side be circumferentially be powered after can be mutually exclusive with the permanent magnet electromagnet, jacket layer is made of wear-resisting telescopic TPU materials.By implementing the technical program, need to overcome furniture gravity that could move support base later with larger power when solving the problem of switching support base with idler wheel.
Description
Technical field
The present invention relates to furniture part fields, and in particular to a kind of castor for furniture bottom.
Background technology
Castor for furniture bottom include the connecting seat for being connected to furniture bottom, by be vertically arranged first
Shaft is rotatably connected on supporting rack below connecting seat, is rotatably connected on supporting rack by the second horizontally disposed shaft
On idler wheel.And there are certain drawbacks for such castor：After furniture is moved to a certain designated position, it can not position, foot
The sliding of wheel, furniture stress are easy movement.
Disclose a kind of castor application No. is the patent of CN201410395309.5, including connecting seat, by along vertical side
It is rotatably connected on supporting rack below the connecting seat, by the second horizontally disposed shaft to the first rotating shaft of setting
The idler wheel being rotatably connected on support frame as described above is provided with length on the supporting rack and is vertically arranged and can be along itself
The screw rod of axial rotation, the support base that can be moved up and down and be mutually threadedly coupled with the screw rod.The castor of the technical solution, when need
When wanting moving furniture, mobile support base is allowed to bottom end and is higher than idler wheel bottom end, then idler wheel is contacted on ground, can freely be rolled,
When furniture is moved to a certain designated position, mobile support base is allowed to bottom end and is less than idler wheel bottom end or equal with idler wheel bottom end, then
Support base is contacted on ground, and furniture is made steadily to stand on ground.However, the technical solution still has following deficiency：
Switching support base must pull against the gravity of furniture with idler wheel, and the furniture gravity for generally carrying castor is larger, therefore make support
The bottom end of seat less than idler wheel bottom end or it is equal with idler wheel bottom end when, need to be overcome with larger power could move after furniture gravity
Dynamic support base；At the same time, support base is made to be also required to artificially move support base higher than idler wheel bottom end, it is complicated for operation, and strength compared with
Small people can not move support base, very inconvenient.
Invention content
The invention is intended to provide a kind of castor for furniture bottom, when to solve switching support base with idler wheel, need
Overcome the problems, such as that after furniture gravity support base could be moved with larger power.
In order to achieve the above objectives, base case of the invention is as follows：For the castor of furniture bottom, including it is connecting seat, logical
It is rotatably connected on supporting rack below the connecting seat, by horizontally disposed after the first rotating shaft being vertically arranged
The second shaft be rotatably connected on the idler wheel on support frame as described above, be provided with what length was vertically arranged on support frame as described above
Support base, the castor has holding state and rolling condition, and when it is in holding state, the bottom end of the support base is less than rolling
Bottom end or equal with idler wheel bottom end is taken turns, when the castor is in rolling condition, the bottom end of the support base is higher than the bottom end of idler wheel,
Be equipped with stretching structure in the idler wheel, the stretching structure include connecting layer, jacket layer and several be connected to connecting layer with it is outer
Telescopic rod between jacket layer, the connecting layer are fixedly connected with second shaft, and the jacket layer is close to telescopic rod side week
To equipped with permanent magnet, the connecting layer close to the telescopic rod side be circumferentially with energization after it is mutually exclusive with the permanent magnet
Electromagnet, the jacket layer are made of wear-resisting telescopic TPU materials.
The principle of this base case is：Castor has holding state and rolling condition, when castor is in holding state,
The stretching structure in idler wheel in the second horizontally disposed shaft is contraction state；The inner wall of the jacket layer of stretching structure
It is equipped with permanent magnet, and the electromagnet mutually exclusive with permanent magnet being arranged on connecting layer is obstructed electricity condition, to permanent magnet
Do not repel with electromagnet, and radially telescopic telescopic rod is in contraction state between connecting layer and jacket layer so that idler wheel
Bottom end be greater than or equal to support base bottom end, support base contact ground, so that furniture is steadily stood on ground；The program is not necessarily to
It is artificial that the gravity of furniture is overcome to move support base, it is easy to operate；When needing to roll castor, the stretching structure in idler wheel is
Elongation state, the electromagnet after being powered on the permanent magnet and connecting layer on jacket layer inner wall is mutually exclusive, since jacket layer uses
Wear-resisting telescopic TPU materials are made, and tensile property is high, and wear-resisting property is good, jacket layer by internal repulsive force drawn expanded,
So that the bottom end of idler wheel is less than the bottom end of support base, such free scroll wheel, the gravity without overcoming furniture larger moves branch
Support seat, avoid the smaller people of strength can not moving furniture the problem of.
Advantageous effect：
1, by the holding state and rolling condition of the mutually exclusive effect control castor of electromagnet and permanent magnet, it is not necessarily to people
The height of idler wheel and support base is controlled for mobile support base, smaller people can not move support base so as to avoid strength, can not
The problem of changing the holding state and rolling condition of castor, it is simple in structure, it is convenient and practical；
2, jacket layer is made of wear-resisting telescopic TPU materials, and TPU is thermoplastic polyurethane elastomer rubber, TPU modelings
Collagen material wear-resisting property is excellent, five times wear-resisting compared with natural rubber or more, and tensile strength is up to 70MPa, and elongation at break can be high
Up to 1000%；Wear-resisting property is good when to make idler wheel roll, and idler wheel, which can be realized, freely to be stretched, and service life is high.
3, it is connected with telescopic rod between jacket layer and connecting layer, there is guiding role to the flexible of roller outer sleeve layer so that
When holding state, telescopic rod does not extend idler wheel, and jacket layer is circumferentially distributed along connecting layer；Idler wheel rolling condition when
It waits, telescopic rod elongation, jacket layer is along telescopic rod axial expansion so that idler wheel contacts stabilization with ground.
Further, support frame as described above be provided on vertically can along the screw rod of itself axial rotation, the screw rod with
Support base is threadedly coupled.Advantageous effect：Convenient for disassembling support base, the screw rod of vertical direction setting, which has support base, leads
It to effect, is threaded on support base, connection is stablized.
Further, the quantity of the telescopic rod is 6, and the circumferential connecting layer that is uniformly distributed in is formed by cavity with jacket layer
It is interior.Advantageous effect：So that jacket layer is uniformly shunk and is extended on the outside of connecting layer, realizes rolling and uniform receipts that idler wheel is stablized
It puts.
Further, the telescopic rod includes several telescopic joints, and telescopic rod is socketed to form in an axial direction by telescopic joint, Mei Geshen
Resetting spring is equipped between the two neighboring telescopic joint of contracting bar.Advantageous effect：Connection is simple, can realize free flexible and multiple
Position folding and unfolding.
Further, the sliding slot of vertical direction setting is offered on the support base, support frame as described above is equipped with and the cunning
The convex block that slot matches, the convex block are slidably connected with sliding slot.Advantageous effect：Limitation support base circumferentially rotates, and enhances support base
Stability.
Further, the sliding slot is dovetail groove.Advantageous effect：Dovetail groove keeps convex block multidirectional stressed, clamps and stablizes, limitation effect
Fruit is good.
Description of the drawings
Fig. 1 is structural schematic diagram of the present invention for the castor embodiment of furniture bottom；
Fig. 2 is castor present invention looks up structural representation of the present invention for the castor embodiment of furniture bottom；
Fig. 3 is idler wheel schematic cross-sectional view of the present invention for the castor embodiment of furniture bottom.
Specific implementation mode
Below by specific implementation mode, the present invention is described in further detail：
Reference numeral in Figure of description includes：Connecting seat 1, supporting rack 2, idler wheel 3, support base 4, through-hole 5, screw rod 6,
Sliding slot 7, convex block 8, first rotating shaft 9, the second shaft 10, jacket layer 11, connecting layer 12, telescopic rod 13.
Embodiment is substantially as shown in Fig. 1：For the castor of furniture bottom, including connecting seat 1, by vertically setting
The first rotating shaft 9 set is rotatably connected on the supporting rack 2 of 1 lower section of connecting seat, by 10 turns horizontally disposed of the second shaft
The dynamic idler wheel 3 being connected on supporting rack 2, connecting seat 1 circumferentially offer 4 through-holes 5 close to marginal position, for connecting seat 1 with
Furniture bottom is bolted, and is connected by ball bearing between connecting seat 1 and supporting rack 2.On 2 vertical direction of supporting rack
It is provided with the screw rod 6 along itself axial rotation, screw rod 6 is corresponded on support base 4 and is provided with threaded hole, support base 4 can by screw rod 6
Dismounting is engaged on supporting rack 2, and screw rod 6 has guiding role to support base 4, and is threadedly coupled, and connection is stablized.
As shown in Fig. 2, offering sliding slot 7 on 4 vertical direction of support base, sliding slot 7 is dovetail groove, is provided on supporting rack 2
The convex block 8 being slidably connected with sliding slot 7, limitation support base 4 circumferentially rotate, and enhance the stability of support base 4.Have on supporting rack 2
One accommodating chamber, idler wheel 3 and support base 4 are arranged in accommodating chamber, and the space of accommodating chamber is enough to keep away when making idler wheel 3 expand
Exempt to contact with supporting rack 2, interval trough is equipped between idler wheel 3 and accommodating chamber, when the space of interval trough is enough that idler wheel 3 is made to expand
It avoids contacting with support base 4.
As shown in figure 3, idler wheel 3 and the second shaft 10 are coaxially connected, stretching structure is equipped in idler wheel 3, stretching structure includes
Along 10 radially-arranged telescopic rod of the second shaft between connecting layer 12, jacket layer 11 and 6 connection connecting layers 12 and jacket layer 11
13, telescopic rod 13 is evenly distributed between connecting layer 12 and jacket layer 11, makes jacket layer 11 in the uniform receipts in 12 outside of connecting layer
Rolling and uniform folding and unfolding that idler wheel 3 is stablized are realized in contracting and elongation.Connecting layer 12 is by being keyed in the second shaft 10, connection
Stabilization is connect, it is easy to disassemble；Telescopic rod 13 includes 5 telescopic joints, the socket of two neighboring telescopic joint, and two neighboring telescopic joint it
Between be both provided with resetting spring, jacket layer 11 expansion uphold after, can make jacket layer 11 along telescopic rod by resetting spring
It shrinks in 13 directions；Jacket layer 11 is circumferentially evenly distributed with permanent magnet close to 13 side of telescopic rod, and connecting layer 12 is close to telescopic rod 13
Side is circumferentially evenly distributed with the electromagnet mutually exclusive with permanent magnet, and the repulsive force of electromagnet and permanent magnet after energization is enough
The bottom end of idler wheel 3 is set to be less than the bottom end of support base 4.Jacket layer 11 is made of wear-resisting telescopic TPU materials, to make idler wheel
Wear-resisting property is good when 3 rolling, and idler wheel 3, which can be realized, freely to be stretched.
In the present embodiment, there is castor holding state and rolling condition to make in idler wheel 3 when needing moving furniture
It is powered with the electromagnet that permanent magnet repels, the repulsive force of electromagnet and permanent magnet after energization keeps telescopic jacket layer 11 swollen
Swollen, 3 bottom end of idler wheel is less than 4 bottom end of support base, then idler wheel 3 is contacted on ground, can be with free roller wheel 3；It is moved to when by furniture
When a certain designated position, disconnect with the energization of the mutually exclusive electromagnet of permanent magnet, to jacket layer 11 not by from
In internal repulsive force, the good jacket layer 11 of retractility is further shunk under the action of elastic-restoring force so that 3 bottom end of idler wheel
Higher than 4 bottom end of support base or equal with 4 bottom end of support base, then support base 4 is contacted on ground so that furniture is steadily stood on
On ground.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific implementation mode can be used for explaining the content of claim.
Claims (6)
1. for the castor of furniture bottom, including connecting seat, institute is rotatably connected on by the first rotating shaft being vertically arranged
The rolling stated the supporting rack below connecting seat, be rotatably connected on by the second horizontally disposed shaft on support frame as described above
It takes turns, the support base that length is vertically arranged is provided on support frame as described above, which is characterized in that the castor has support shape
State and rolling condition, when it is in holding state, the bottom end of the support base is less than idler wheel bottom end or equal with idler wheel bottom end, when
For the castor in rolling condition, the bottom end of the support base is higher than the bottom end of idler wheel, and stretching structure, institute are equipped in the idler wheel
State stretching structure include connecting layer, jacket layer and several be connected to telescopic rod between connecting layer and jacket layer, the linking
Layer is fixedly connected with second shaft, and the jacket layer is circumferentially with permanent magnet close to telescopic rod side, and the connecting layer leans on
The nearly telescopic rod side is circumferentially be powered after the electromagnet mutually exclusive with the permanent magnet, electromagnet after energization with forever
The repulsive force of magnet is enough the bottom end for making the bottom end of idler wheel be less than support base, and the jacket layer uses wear-resisting telescopic TPU materials
Material is made.
2. the castor according to claim 1 for furniture bottom, it is characterised in that：Support frame as described above vertically on
Being provided with can be threadedly coupled along the screw rod of itself axial rotation, the screw rod with support base.
3. the castor according to claim 2 for furniture bottom, it is characterised in that：The quantity of the telescopic rod is 6, and
Connecting layer is circumferentially uniformly distributed in be formed by cavity with jacket layer.
4. the castor according to claim 3 for furniture bottom, it is characterised in that：The telescopic rod includes that several are stretched
Casing coupling, telescopic rod are socketed to form in an axial direction by telescopic joint, and resetting spring is equipped between the two neighboring telescopic joint of each telescopic rod.
5. the castor according to claim 4 for furniture bottom, it is characterised in that：It is vertical to be offered on the support base
The sliding slot of setting, support frame as described above are equipped with the convex block to match with the sliding slot, and the convex block is slidably connected with sliding slot.
6. the castor according to claim 5 for furniture bottom, it is characterised in that：The sliding slot is dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185110.5A CN106724199B (en) | 2016-12-20 | 2016-12-20 | Castor for furniture bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185110.5A CN106724199B (en) | 2016-12-20 | 2016-12-20 | Castor for furniture bottom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106724199A CN106724199A (en) | 2017-05-31 |
| CN106724199B true CN106724199B (en) | 2018-09-21 |
Family
ID=58894161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611185110.5A Active CN106724199B (en) | 2016-12-20 | 2016-12-20 | Castor for furniture bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106724199B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044165B (en) * | 2018-08-31 | 2020-12-01 | 温州莱益机械有限公司 | Towel rack with dressing mirror based on magnetic force falling prevention |
| CN109567442A (en) * | 2019-01-04 | 2019-04-05 | 华北理工大学 | A kind of multi-functional library's tables and chairs device |
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| Publication number | Publication date |
|---|---|
| CN106724199A (en) | 2017-05-31 |
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