阅读说明：本技术 一种转轴机构 (Rotating shaft mechanism ) 是由 梁少禧 于 2019-11-28 设计创作，主要内容包括：本发明涉及转轴技术领域,具体涉及一种转轴机构,包括筒管、固定连接于筒管内的轴套、与轴套转动连接的转轴构件以及设置于筒管内的防松连接件,所述防松连接件用于防止所述转轴构件脱离所述轴套,所述轴套沿其轴向方向开设有圆台型通孔,所述圆台型通孔的口径由所述圆台型通孔的顶端至所述圆台型通孔的底端逐渐减小,所述转轴构件包括与轴套转动连接的轴身,所述轴身的侧壁抵靠于所述轴套的内壁。该转轴机构在使用过程中,避免了因转轴构件和轴套之间产生缝隙导致座椅容易摆动；再加上设置有用于防止转轴构件脱离轴套的防松连接件,大大提高了转轴机构的稳定性,将该转轴机构装配于座椅中,可提高座椅的稳定性,提高用户的舒适度。(The invention relates to the technical field of rotating shafts, in particular to a rotating shaft mechanism which comprises a bobbin, a shaft sleeve fixedly connected in the bobbin, a rotating shaft component rotationally connected with the shaft sleeve and an anti-loosening connecting piece arranged in the bobbin, wherein the anti-loosening connecting piece is used for preventing the rotating shaft component from being separated from the shaft sleeve, the shaft sleeve is provided with a circular truncated cone-shaped through hole along the axial direction of the shaft sleeve, the caliber of the circular truncated cone-shaped through hole is gradually reduced from the top end of the circular truncated cone-shaped through hole to the bottom end of the circular truncated cone-shaped through hole, the rotating shaft component comprises a shaft body rotationally connected with the shaft sleeve, and the side wall of the shaft body. When the rotating shaft mechanism is used, the situation that the seat is easy to swing due to a gap generated between the rotating shaft component and the shaft sleeve is avoided; in addition, the anti-loosening connecting piece used for preventing the rotating shaft component from being separated from the shaft sleeve is arranged, so that the stability of the rotating shaft mechanism is greatly improved, and the rotating shaft mechanism is assembled in the seat, so that the stability of the seat can be improved, and the comfort level of a user is improved.)

1. A rotating shaft mechanism is characterized in that: the anti-loosening connecting piece is used for preventing the rotating shaft component from being separated from the shaft sleeve, a circular truncated cone-shaped through hole is formed in the shaft sleeve along the axial direction of the shaft sleeve, the caliber of the circular truncated cone-shaped through hole is gradually reduced from the top end of the circular truncated cone-shaped through hole to the bottom end of the circular truncated cone-shaped through hole, the rotating shaft component comprises a shaft body which is rotatably connected with the shaft sleeve, and the side wall of the shaft body is abutted against the inner wall of the shaft sleeve.

2. A spindle mechanism according to claim 1, wherein: the rotating shaft component further comprises a shaft head connected to the top of the shaft body and a locking piece connected to the bottom of the shaft body, the shaft head is arranged at the top of the shaft sleeve, and the locking piece is fixedly connected with the locking connecting piece.

3. A spindle mechanism according to claim 2, wherein: the rotating shaft mechanism further comprises a supporting plate fixedly arranged in the barrel, the shaft sleeve is abutted against the top of the supporting plate, a yielding hole is formed in the middle of the supporting plate, and the anti-loosening piece penetrates through the yielding hole and is fixedly connected with the anti-loosening connecting piece.

4. A spindle mechanism according to claim 3, wherein: the anti-loosening piece is a screw rod, the anti-loosening connecting piece comprises a gasket abutted to the bottom of the supporting plate and a nut abutted to the bottom of the gasket, and the screw rod sequentially penetrates through the yielding hole and the gasket and is in threaded connection with the nut.

5. A spindle mechanism according to claim 2, wherein: the rotating shaft mechanism further comprises a seat supporting piece fixedly connected with the shaft head, and the seat supporting piece comprises a fixing frame fixedly connected with the shaft head and a first supporting plate and a second supporting plate which are respectively fixedly connected with two ends of the fixing frame.

6. A spindle mechanism according to claim 1, wherein: the rotating shaft mechanism further comprises a limiting part, a limiting hole is formed in the pipe wall of the bobbin, a limiting groove communicated with the limiting hole is formed in the outer wall of the shaft sleeve, and the bobbin is fixedly connected with the shaft sleeve through the limiting part.

7. A spindle mechanism according to claim 6, wherein: the lateral wall of locating part is provided with the external screw thread, the pore wall in spacing hole is provided with first internal thread, the inner wall in spacing groove is provided with the second internal thread, bobbin and axle sleeve all with locating part threaded connection.

8. A spindle mechanism according to claim 1, wherein: the shaft sleeve is a self-lubricating shaft sleeve; the outer side wall of the middle part of the shaft body is provided with an annular groove.

9. A spindle mechanism according to claim 8, wherein: the self-lubricating shaft sleeve is a Teflon shaft sleeve.

10. A spindle mechanism according to claim 1, wherein: the rotating shaft mechanism further comprises a fixing plate fixedly arranged at the bottom of the bobbin and a supporting base connected with the fixing plate, an assembling through hole used for assembling the anti-loosening connecting piece is formed in the middle of the fixing plate, the fixing plate is provided with a threaded hole, the supporting base is provided with a bolt preformed hole, and the fixing plate is fixedly connected with the supporting base through a bolt.

Technical Field

The invention relates to the technical field of rotating shafts, in particular to a rotating shaft mechanism.

Background

The rotatable seat on the general market can rotate at will, can infinitely rotate the number of turns along a direction, unrestricted, and the rotation of seat is realized through the pivot bearing.

However, the shaft sleeves of the rotating shaft mechanisms installed on the seats in the market at present are all straight tubular, and after the rotating shaft is installed on the shaft sleeves, the seat is easy to swing due to the fact that gaps exist inevitably because the rotating shaft and the shaft sleeves are not in interference fit; along with the increase of live time, the gap between pivot and the axle sleeve has been increased because of the acceleration of rotational wear easily, and the swing is obvious, can make pivot and axle sleeve separation even, and stability is relatively poor, influences user's comfort level.

Disclosure of Invention

In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a rotating shaft mechanism, wherein a shaft sleeve is provided with a circular truncated cone-shaped through hole along the axial direction of the shaft sleeve, the side wall of a shaft body abuts against the inner wall of the shaft sleeve, the shaft body and the shaft sleeve are tightly pressed under the action of gravity in the use process, a gap between the shaft body and the shaft sleeve is avoided, and the shaft body is pressed downwards after rotating and wearing, so that the gap between the shaft body and the shaft sleeve is avoided, and the seat is prevented from easily swinging due to the gap between a rotating shaft component and the shaft sleeve; in addition, the anti-loosening connecting piece used for preventing the rotating shaft component from being separated from the shaft sleeve is arranged, so that the stability of the rotating shaft mechanism is greatly improved, and the rotating shaft mechanism is assembled in the seat, so that the stability of the seat can be improved, and the comfort level of a user is improved.

The purpose of the invention is realized by the following technical scheme: the utility model provides a rotating shaft mechanism, includes bobbin, fixed connection in the bobbin axle sleeve, with the axle sleeve rotate the pivot component of being connected and set up the locking connecting piece in the bobbin, locking connecting piece is used for preventing the pivot component breaks away from the axle sleeve, round platform type through-hole has been seted up to the axle sleeve along its axial direction, the bore of round platform type through-hole by the top of round platform type through-hole extremely the bottom of round platform type through-hole reduces gradually, the pivot component includes the axle body of being connected with the axle sleeve rotation, the lateral wall of axle body support by in the inner wall of axle sleeve.

Preferably, the rotating shaft member further comprises a shaft head connected to the top of the shaft body and a locking piece connected to the bottom of the shaft body, the shaft head is arranged at the top of the shaft sleeve, and the locking piece is fixedly connected with the locking piece.

Preferably, the pivot mechanism still including fixed set up in backup pad in the barrel, the axle sleeve support lean on in the top of backup pad, the hole of stepping down has been seted up at the middle part of backup pad, anti-loosening member runs through the hole of stepping down and with locking connecting piece fixed connection.

Preferably, the anti-loosening element is a screw rod, the anti-loosening connecting element comprises a washer and a nut, the washer is abutted to the bottom of the supporting plate, the nut is abutted to the bottom of the washer, and the screw rod sequentially penetrates through the yielding hole and the washer and is in threaded connection with the nut.

Preferably, the rotating shaft mechanism further comprises a seat supporting piece fixedly connected with the shaft head, and the seat supporting piece comprises a fixing frame fixedly connected with the shaft head and a first supporting plate and a second supporting plate which are respectively fixedly connected with two ends of the fixing frame.

Preferably, the rotating shaft mechanism further comprises a limiting part, a limiting hole is formed in the tube wall of the bobbin, a limiting groove communicated with the limiting hole is formed in the outer wall of the shaft sleeve, and the bobbin is fixedly connected with the shaft sleeve through the limiting part.

Preferably, the outer side wall of the limiting part is provided with an external thread, the hole wall of the limiting hole is provided with a first internal thread, the inner wall of the limiting groove is provided with a second internal thread, and the bobbin and the shaft sleeve are both in threaded connection with the limiting part.

Preferably, the shaft sleeve is a self-lubricating shaft sleeve; the outer side wall of the middle part of the shaft body is provided with an annular groove.

Preferably, the self-lubricating shaft sleeve is a teflon shaft sleeve.

Preferably, the rotating shaft mechanism further comprises a fixing plate fixedly arranged at the bottom of the bobbin and a supporting base connected with the fixing plate, an assembling through hole used for assembling the anti-loosening connecting piece is formed in the middle of the fixing plate, the fixing plate is provided with a threaded hole, the supporting base is provided with a bolt preformed hole, and the fixing plate is fixedly connected with the supporting base through a bolt.

The invention has the beneficial effects that: according to the rotating shaft mechanism, the shaft sleeve is provided with the circular truncated cone-shaped through hole along the axial direction, the side wall of the shaft body is abutted against the inner wall of the shaft sleeve, the shaft body and the shaft sleeve are tightly pressed under the action of gravity in the using process, so that a gap between the shaft body and the shaft sleeve is avoided, the shaft body is pressed downwards after rotating and wearing, and therefore a gap between the shaft body and the shaft sleeve is avoided, and the seat is prevented from easily swinging due to the gap between a rotating shaft component and the shaft sleeve; in addition, the anti-loosening connecting piece used for preventing the rotating shaft component from being separated from the shaft sleeve is arranged, so that the stability of the rotating shaft mechanism is greatly improved, and the rotating shaft mechanism is assembled in the seat, so that the stability of the seat can be improved, and the comfort level of a user is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded schematic view of the present invention;

fig. 3 is a cross-sectional view of the present invention.

The reference signs are: 1. a bobbin; 2. a shaft sleeve; 3. a shaft member; 31. a shaft body; 32. a shaft head; 33. an anti-loosening element; 4. a locking connector; 41. a gasket; 42. a nut; 5. a circular truncated cone-shaped through hole; 6. a support plate; 7. a hole of abdication; 8. a seat support; 81. a fixed mount; 82. a first support plate; 83. a second support plate; 9. connecting holes; 10. a limiting member; 11. a limiting hole; 12. a limiting groove; 13. an external thread; 14. a first internal thread; 15. a second internal thread; 16. an annular groove; 17. a fixing plate; 18. a support base; 19. assembling the through hole; 20. a threaded hole; 21. and reserving holes for bolts.

Detailed Description

For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1-3, a rotating shaft mechanism includes a bobbin 1, a shaft sleeve 2 fixedly connected in the bobbin 1, a rotating shaft member 3 rotatably connected to the shaft sleeve 2, and an anti-loosening connector 4 disposed in the bobbin 1, where the anti-loosening connector 4 is used to prevent the rotating shaft member 3 from being separated from the shaft sleeve 2, the shaft sleeve 2 is provided with a circular truncated cone-shaped through hole 5 along an axial direction thereof, a diameter of the circular truncated cone-shaped through hole 5 gradually decreases from a top end of the circular truncated cone-shaped through hole 5 to a bottom end of the circular truncated cone-shaped through hole 5, the rotating shaft member 3 includes a shaft body 31 rotatably connected to the shaft sleeve 2, and a side wall of the shaft body 31 abuts against an inner wall of the shaft sleeve 2. Further, the shaft body 31 is embedded in the circular truncated cone-shaped through hole 5, and the shaft body 31 is in a circular truncated cone shape.

According to the rotating shaft mechanism, the shaft sleeve 2 is provided with the circular truncated cone-shaped through hole 5 along the axial direction, the side wall of the shaft body 31 is abutted against the inner wall of the shaft sleeve 2, in the using process, the shaft body 31 and the shaft sleeve 2 are pressed tightly under the action of gravity, the top side wall between the shaft body 31 and the shaft sleeve 2 is prevented from generating a gap, and the shaft body 31 is pressed downwards after rotating and wearing, so that the gap between the shaft body 31 and the shaft sleeve 2 is prevented, and the seat is prevented from easily swinging due to the gap generated on the top side wall between the rotating shaft member 3 and the shaft sleeve 2; in addition, the anti-loosening connecting piece 4 used for preventing the rotating shaft component 3 from being separated from the shaft sleeve 2 is arranged, so that the stability of the rotating shaft mechanism is greatly improved, and the rotating shaft mechanism is assembled in the seat, so that the stability of the seat can be improved, and the comfort level of a user is improved.

As shown in fig. 1 to 3, in this embodiment, the rotating shaft member 3 further includes a shaft head 32 connected to the top of the shaft body 31 and a locking piece 33 connected to the bottom of the shaft body 31, the shaft head 32 is disposed at the top of the shaft sleeve 2, and the locking piece 33 is fixedly connected to the locking connecting piece 4.

By adopting the technical scheme, the shaft head 32 is connected with the shaft body 31, so that the rotating shaft component 3 can be conveniently connected with other mechanisms, and the rotating connection between the shaft body 31 and the shaft sleeve 2 is prevented from being influenced; the anti-loosening piece 33 is connected with the shaft body 31, the anti-loosening piece 33 is fixedly connected with the anti-loosening connecting piece 4, the rotating shaft component 3 is prevented from being separated from the rotating shaft mechanism in the using process, the using stability of the rotating shaft mechanism is improved, and the safety is ensured. Further, the shaft head 32 and the shaft body 31 are fixedly connected, preferably welded or integrally formed, in this embodiment, the shaft head 32 and the shaft body 31 are integrally formed, and compared with welding, the situation that the joint is broken due to stress concentration is avoided.

As shown in fig. 2-3, in this embodiment, the rotating shaft mechanism further includes a supporting plate 6 fixedly disposed in the bobbin 1, the shaft sleeve 2 abuts against the top of the supporting plate 6, a yielding hole 7 is formed in the middle of the supporting plate 6, and the anti-loosening element 33 penetrates through the yielding hole 7 and is fixedly connected to the anti-loosening connecting element 4. The anti-loosening element 33 is rotatable relative to the support plate 6. The anti-loosening element 33 does not come off the support plate 6.

By adopting the technical scheme, the supporting plate 6 can support the shaft sleeve 2, improve the longitudinal stability of the shaft sleeve 2, avoid safety accidents caused by rapid sliding of the shaft sleeve 2 in the using process, and can provide a fixed foundation for fixedly connecting the rotating shaft component 3 with the anti-loosening connecting piece 4, and avoid the rotating shaft component 3 from separating out of the rotating shaft mechanism in the using process, thereby improving the using stability of the rotating shaft mechanism and ensuring the safety.

As shown in fig. 2-3, in this embodiment, the anti-loose element 33 is a screw, the anti-loose connecting element 4 includes a washer 41 abutting against the bottom of the supporting plate 6 and a nut 42 abutting against the bottom of the washer 41, and the screw sequentially penetrates through the yielding hole 7 and the washer 41 and is in threaded connection with the nut 42. The anti-release member 33 and the nut 42 cooperate so that the anti-release member 33 can rotate relative to the support plate 6 without disengaging from the support plate 6.

By adopting the technical scheme, the rotating shaft component 3 can be prevented from being separated from the rotating shaft mechanism in the using process, the using stability of the rotating shaft mechanism is improved, the safety is ensured, and meanwhile, the rotating connection of the shaft body 31 and the shaft sleeve 2 is not influenced. Further, the shaft body 31 is fixedly connected, preferably threadedly connected, to the anti-loosening element 33, specifically, a threaded groove (not shown) is formed in the bottom of the shaft body 31, and the anti-loosening element 33 is threadedly connected to the shaft body 31 through the threaded groove.

As shown in fig. 1 to 3, in this embodiment, the rotating shaft mechanism further includes a seat support 8 fixedly connected to the spindle head 32, and the seat support 8 includes a fixed frame 81 fixedly connected to the spindle head 32, and a first support plate 82 and a second support plate 83 fixedly connected to two ends of the fixed frame 81, respectively.

By adopting the technical scheme, the top of the rotating shaft mechanism is fixedly connected with the seat supporting piece 8 so as to be beneficial to assembling the seat, and the two ends of the fixing frame 81 are respectively and fixedly connected with the first supporting plate 82 and the second supporting plate 83, so that the stress stability is improved. Furthermore, the first support plate 82 and the second support plate 83 are both provided with a connecting hole 9, so that the rotating shaft mechanism is applied to the seat and is connected with other components of the seat into a whole.

As shown in fig. 1-2, in this embodiment, the rotating shaft mechanism further includes a limiting member 10, a limiting hole 11 is formed in a tube wall of the bobbin 1, a limiting groove 12 communicated with the limiting hole 11 is formed in an outer wall of the shaft sleeve 2, and the bobbin 1 is fixedly connected to the shaft sleeve 2 through the limiting member 10.

By adopting the technical scheme, the bobbin 1 and the shaft sleeve 2 are fixedly connected, the stability between the bobbin 1 and the shaft sleeve 2 is improved, and the bobbin 1 and the shaft sleeve 2 are prevented from moving relatively in the rotating process of the shaft body 31 and the shaft sleeve 2; in addition, adopt above-mentioned technical scheme, locating part 10 and backup pad 6 combined action have reached and have improved the longitudinal stability of axle sleeve 2 avoids in the use axle sleeve 2 slides down rapidly and causes the incident.

As shown in fig. 1-2, in the present embodiment, an external thread 13 is disposed on an outer side wall of the limiting member 10, a first internal thread 14 is disposed on a hole wall of the limiting hole 11, a second internal thread 15 is disposed on an inner wall of the limiting groove 12, and both the bobbin 1 and the shaft sleeve 2 are in threaded connection with the limiting member 10.

By adopting the technical scheme, the assembly is convenient, the assembly efficiency is improved, the mode of threaded connection effectively avoids the loosening and falling of the limiting part 10, and the connection stability of the limiting part 10 and the bobbin 1 and the shaft sleeve 2 is improved. Preferably, the number of the limiting members 10 is 1 to 4, and the number of the limiting holes 11 and the number of the limiting grooves 12 are the same as the number of the limiting members 10; in this embodiment, the number of the limiting members 10 is 4, and the 4 limiting members 10 are uniformly and annularly distributed, so that the relative movement between the bobbin 1 and the shaft sleeve 2 can be further limited, and the stability between the bobbin 1 and the shaft sleeve 2 is improved.

As shown in fig. 2-3, in the present embodiment, the shaft sleeve 2 is a self-lubricating shaft sleeve 2; the outer side wall of the middle part of the shaft body 31 is provided with an annular groove 16.

By adopting the technical scheme, the self-lubricating shaft sleeve 2 is low in friction coefficient, free rotation of the rotating shaft mechanism is facilitated, abrasion resistance is greatly improved, lubricating agents such as butter and the like are avoided, lasting lubrication can be kept, and the service life is longer; the annular groove 16 is formed in the outer side wall of the middle of the shaft body 31, so that the friction contact area between the shaft body 31 and the shaft sleeve 2 is reduced, the free rotation of the rotating shaft mechanism is facilitated, the stability of the shaft body 31 and the shaft sleeve 2 is not affected, and the shaft body 31 and the shaft sleeve 2 do not swing.

In this embodiment, the self-lubricating sleeve 2 is a teflon sleeve 2.

By adopting the technical scheme, the Teflon shaft sleeve 2 is the shaft sleeve 2 which is formed by processing Teflon, the friction coefficient is extremely low, the friction coefficient of the Teflon is about 0.04, and the Teflon has the high temperature resistance characteristic, so that the problem of increased abrasion caused by friction heating is avoided.

As shown in fig. 2 to 3, in this embodiment, the rotating shaft mechanism further includes a fixing plate 17 fixedly disposed at the bottom of the bobbin 1 and a supporting base 18 connected to the fixing plate 17, an assembling through hole 19 for assembling the anti-loose connecting member 4 is formed in the middle of the fixing plate 17, the fixing plate 17 is provided with a threaded hole 20, the supporting base 18 is provided with a bolt preformed hole 21, and the fixing plate 17 is fixedly connected to the supporting base 18 through a bolt (not shown).

By adopting the technical scheme, the anti-loosening connecting piece 4 can be conveniently arranged at the bottom of the supporting plate 6 from the assembling through hole 19, and then the anti-loosening connecting piece 4 is fixedly connected with the anti-loosening piece 33; adopt the bolt with fixed plate 17 and support base 18 fixed connection, the bolt is from the bottom through bolt preformed hole 21 that supports base 18 promptly, rethread screw hole 20 and fixed plate 17 threaded connection, the equipment is convenient, simultaneously convenient to detach transportation. Further, the bobbin 1 is welded and fixed to the fixing plate 17.

The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.