CN201995977U - Central shaft suitable for rotary chair - Google Patents
Central shaft suitable for rotary chair Download PDFInfo
- Publication number
- CN201995977U CN201995977U CN2010206691829U CN201020669182U CN201995977U CN 201995977 U CN201995977 U CN 201995977U CN 2010206691829 U CN2010206691829 U CN 2010206691829U CN 201020669182 U CN201020669182 U CN 201020669182U CN 201995977 U CN201995977 U CN 201995977U
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- switching part
- central shaft
- card
- fixed disk
- cylinder
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Abstract
The utility model relates to a central shaft suitable for a rotary chair, belonging to the field of furniture and office supplies. The utility model is realized through the following technical scheme: the central shaft suitable for the rotary chair comprises a cylinder, a guide sleeve sleeved and fixed together with the cylinder and a mandrel bar sleeved with the guide sleeve, wherein the mandrel bar comprises a switching part and a mounting part which are connected integrally, and the diameter of the end face of the switching part which is connected with the mounting part is smaller than the diameter of the end face of the mounting part which is connected with the end face of the switching part; the central shaft also comprises a fixed disk fixed on one end of the cylinder, and the fixed disk is provided with a through hole in the middle of the fixed disk and a plurality of mounting holes arranged around the through hole; and the free end of the switching part passes through the guide sleeve and the through hole and is connected to the outside of the fixed disk by a clamping buckle in a clamping way. The pressure of the seat of the rotary chair adopting the central shaft is borne by the fixed disk, therefore, the abrasion of the guide sleeve is reduced, and the service life of the central shaft is prolonged.
Description
Technical field
The utility model relates to furniture, office appliance field, particularly a kind of central shaft that is applicable to swivel chair.
Background technology
Central shaft of the prior art as shown in Figure 1, comprise cylinder 1, with the fairlead 2 of cylinder 1 socket, with the plug 3 of fairlead 2 sockets, plug 3 is provided with shirt rim 33, from Fig. 1, plug 3 is arranged in the part of shirt rim below 33 and is inserted in fairlead 2, and can in fairlead 2, rotate, thereby, obvious plug 3 is positioned at shirt rim 33 and is used for fixing the connection seat support with top, therefore, the pressure of the seat support of swivel chair of the prior art is born by fairlead 2 fully, thereby, cause fairlead 2 easy to wear, influence the service life of central shaft.
The utility model content
The purpose of this utility model provides a kind of central shaft that is applicable to swivel chair, adopts the pressure of seat support of the swivel chair of this kind central shaft to be born by fixed disk, thereby has reduced the wearing and tearing of fairlead, the service life of having improved center spindle structure.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: comprise cylinder, with cylinder socket and fixing fairlead, with the plug of fairlead socket, described plug comprises switching part and the installation portion that one connects, and the diameter of the end face that is connected with installation portion on the switching part is less than the diameter of the end face that is connected with this end face on the installation portion; This central shaft also comprises the fixed disk that is fixed in cylinder one end, and fixed disk has the through hole that is positioned at the fixed disk middle part and is positioned at through hole a plurality of installing holes on every side; The free end of switching part passes fairlead and passes through hole and be connected in outside the fixed disk by buckle.
Installing hole is used for the swivel chair base is fixedlyed connected with fixed disk; The installation portion of plug has tapering and is used for fixedlying connected with the swivel chair seat support; The free end of the switching part of plug passes fairlead and passes through hole and be connected in outside the fixed disk by buckle, thereby make the pressure of swivel chair seat support bear by fixed disk, thereby background technology has reduced the wearing and tearing of fairlead relatively, has improved the service life of central shaft.
As of the present utility model preferred, be with the rolling sheet between fixed disk and installation portion on the switching part, be embedded with ball on the rolling sheet.
The setting of rolling sheet is to rotate for the plug of being more convenient for.
As of the present utility model preferred, described rolling sheet both sides are respectively equipped with the pad that is placed on the switching part.
In use, compress mutually between the installation portion of fixed disk, above-mentioned two pads, rolling sheet and plug, thereby make the pressure of swivel chair seat support bear by fixed disk.
As of the present utility model preferred, be provided with the pad that is placed on the switching part between described buckle and the fixed disk.
As of the present utility model preferred, the free end of described switching part has draw-in groove; Described buckle comprises the card one and card two that two one connect, and has opening on the card one, has on the card two to be mushroom inlet, and card one is connected with card article with the junction of card two, and under the nature, card article extends into inlet; The free-ended end face of switching part passes opening and passes inlet and is tight against card article, and the part of card two falls within the draw-in groove.
Be meant under the nature buckle not with state that switching part is connected under; The mushroom inlet is grouped into by bigger abscission ring part and the less straight portion of relative size; The connection procedure of switching part and buckle is as follows: the free end with switching part sees through the abscission ring part that opening enters the mushroom inlet earlier, continues to the card article extruding again, and moves to the straight part of inlet, thereby the part of card two is fallen within the draw-in groove.
As of the present utility model preferred, be connected for interference between described cylinder and the fairlead.
As of the present utility model preferred, described fairlead comprises sleeve pipe and is located at sleeve pipe sidewall fixed strip radially; Cylinder inner wall is provided with at least one projection, and each projection is between two fixed strips.
Projection and the cooperating of fixed strip make the phenomenon that fairlead is more difficult and cylinder produces relative rotation.
In sum, the utlity model has following beneficial effect: the utility model is simple in structure, and relative background technology has reduced the wearing and tearing of fairlead, the service life of having improved central shaft; And since the setting of rolling sheet, relative background technology, and plug is easier to rotate.
Description of drawings
Fig. 1 is the background technology structural representation;
Fig. 2 is the example structure schematic diagram;
Fig. 3 is an A portion enlarged drawing among Fig. 2;
Fig. 4 is a buckle structure schematic diagram among the embodiment.
Among the figure, 1, cylinder, 11, projection, 2, fairlead, 21, sleeve pipe, 22, fixed strip, 3, plug, 31, switching part, 311, draw-in groove, 32, installation portion, 33, the shirt rim, 4, fixed disk, 41, through hole, 42, installing hole, 5, buckle, 51, card one, 511, opening, 52, card two, 521, inlet, 5211, the abscission ring part, 5212, straight part, 53, card article, 6, the rolling sheet, 61, ball, 7, pad.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subjected to the protection of Patent Law in claim scope of the present utility model.
Shown in Fig. 2 to 4, a kind of central shaft that is applicable to swivel chair, comprise cylinder 1, the fairlead 2 that is connected with cylinder 1 socket and interference, with the plug 3 of fairlead 2 sockets, be fixed in the fixed disk 4 of cylinder 1 one ends.
Fairlead 2 comprises sleeve pipe 21 and is located at sleeve pipe 21 sidewalls fixed strip 22 radially; Be the phenomenon that further prevents to produce relative rotation between fairlead 2 and the cylinder 1, cylinder 1 inwall is provided with two pairs of projectioies 11, is made up of two projectioies 11 for every pair, only demonstrates a pair ofly among the figure, and each projection 11 is between two fixed strips 22.
Described plug 3 comprises switching part 31 and the installation portion 32 that one connects, and installation portion 32 has tapering and is used for fixedlying connected with the swivel chair seat support; The diameter of the end face that is connected with installation portion 32 on the switching part 31 is less than the diameter of the end face that is connected with this end face on the installation portion 32; Fixed disk 4 has the through hole 41 that is positioned at fixed disk 4 middle parts and is positioned at through hole 41 a plurality of installing holes 42 on every side; The free end of switching part 31 passes fairlead 2 and passes through hole 41 and be connected in outside the fixed disk 4 by buckle 5, is provided with the pad 7 that is placed on the switching part 31 between fixed disk 4 and the buckle 5; Rotate for ease of plug 3, be with the rolling sheet 6 between fixed disk 4 and installation portion 32 on the switching part 31, be embedded with ball 61 on the rolling sheet 6, referring to Fig. 3; Rolling sheet 6 both sides are respectively equipped with the pad 7 that is placed on the switching part 31; In the use of present embodiment, compress mutually between the installation portion 32 of fixed disk 4, two pads 7, rolling sheet 6 and plugs 3.
The free end of switching part 31 has draw-in groove 311, referring to Fig. 3; Described buckle 5 comprises the card 1 and card 2 52 that two one connect, have opening 511 on the card 1, have on the card 2 52 and be mushroom inlet 521, be mushroom inlet 521 and form by bigger abscission ring part 5211 and the less straight part 5212 of relative size; Card 1 is connected with card article 53 with the junction of card 2 52, and under the nature, card article 53 extends into inlet 521; The free-ended end face of switching part 31 passes opening 511 and passes inlet 521 and is tight against card article 53, and the part of card 2 52 falls within the draw-in groove 311; Be meant under the nature buckle not with state that switching part is connected under; Switching part 31 is as follows with the connection procedure of buckle 5: the free end with switching part 31 sees through the abscission ring part 5211 that opening 511 enters mushroom inlet 521 earlier, continue again to card article 53 extruding, and move, thereby the part of card 2 52 is fallen within the draw-in groove 311 to inlet 521 straight part 5212.
Claims (7)
1. central shaft that is applicable to swivel chair, comprise cylinder (1), with cylinder (1) socket and fixing fairlead (2), with the plug (3) of fairlead (2) socket, described plug (3) comprises switching part (31) and the installation portion (32) that one connects, it is characterized in that the diameter of the end face that switching part (31) upward is connected with installation portion (32) is gone up the diameter of the end face that is connected with this end face less than installation portion (32); This central shaft also comprises the fixed disk (4) that is fixed in cylinder (1) one end, and fixed disk (4) has the through hole (41) that is positioned at fixed disk (4) middle part and is positioned at through hole (41) a plurality of installing holes (42) on every side; The free end of switching part (31) passes fairlead (2) and passes through hole (41) and be connected in outside the fixed disk (4) by buckle (5).
2. a kind of central shaft that is applicable to swivel chair according to claim 1 is characterized in that, is with the rolling sheet (6) that is positioned between fixed disk (4) and the installation portion (32) on the described switching part (31); Be embedded with ball (61) on the rolling sheet (6).
3. a kind of central shaft that is applicable to swivel chair according to claim 2 is characterized in that, described rolling sheet (6) both sides are respectively equipped with the pad (7) that is placed on the switching part (31).
4. a kind of central shaft that is applicable to swivel chair according to claim 2 is characterized in that, is provided with the pad (7) that is placed on the switching part (31) between described buckle (5) and the fixed disk (4).
5. according to claim 2 or 3 or 4 described a kind of central shafts that are applicable to swivel chair, it is characterized in that the free end of described switching part (31) has draw-in groove (311); Described buckle (5) comprises the card one (51) and card two (52) that two one connect, have opening (511) on the card one (51), have inlet (521) on the card two (52), card one (51) is connected with card article (53) with the junction of card two (52), under the nature, card article (53) extends into inlet (521); The free-ended end face of switching part (31) passes opening (511) and passes inlet (521) and is tight against card article (53), and the part of card two (52) falls within the draw-in groove (311).
6. a kind of central shaft that is applicable to swivel chair according to claim 1 is characterized in that, is connected for interference between described cylinder (1) and the fairlead (2).
7. according to claim 1 or 6 described a kind of central shafts that are applicable to swivel chair, it is characterized in that described fairlead (2) comprises sleeve pipe (21) and is located at sleeve pipe (21) sidewall fixed strip (22) radially; Cylinder (1) inwall is provided with at least one projection (11), and each projection (11) is positioned between two fixed strips (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206691829U CN201995977U (en) | 2010-12-20 | 2010-12-20 | Central shaft suitable for rotary chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206691829U CN201995977U (en) | 2010-12-20 | 2010-12-20 | Central shaft suitable for rotary chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201995977U true CN201995977U (en) | 2011-10-05 |
Family
ID=44698762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206691829U Expired - Lifetime CN201995977U (en) | 2010-12-20 | 2010-12-20 | Central shaft suitable for rotary chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201995977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085055A (en) * | 2010-12-20 | 2011-06-08 | 安吉斯诺尔精密器械有限公司 | Central shaft applicable to swivel chairs |
-
2010
- 2010-12-20 CN CN2010206691829U patent/CN201995977U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085055A (en) * | 2010-12-20 | 2011-06-08 | 安吉斯诺尔精密器械有限公司 | Central shaft applicable to swivel chairs |
| CN102085055B (en) * | 2010-12-20 | 2013-03-27 | 安吉斯诺尔精密器械有限公司 | Central shaft applicable to swivel chairs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |