CN218419109U - Angle adjustment mechanism and sofa - Google Patents
Angle adjustment mechanism and sofa Download PDFInfo
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- CN218419109U CN218419109U CN202222159044.1U CN202222159044U CN218419109U CN 218419109 U CN218419109 U CN 218419109U CN 202222159044 U CN202222159044 U CN 202222159044U CN 218419109 U CN218419109 U CN 218419109U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 62
- 230000009471 action Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 description 7
- 239000011247 coating layer Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of electric lift mechanism, concretely relates to angular adjustment mechanism and sofa, including screw rod, the screw-nut on the screw rod, the outside inner tube of screw rod, actuating mechanism drive lead screw rotates, and screw-nut connects the inner tube, still including setting up the tilting mechanism on the inner tube top, be equipped with the drive connecting rod in the inner tube, the upper end of screw rod is connected drive connecting rod through drive mechanism and is driven its rotation, tilting mechanism is including connecting at the fixing base on inner tube top, arranging intermeshing's turbine, worm in the fixing base in, the worm is connected with the top of drive connecting rod, action part is connected to the turbine, and turbine drive action part overturns when inner tube drive action part goes up and down, improves the result of use, and the structure is exquisite, and is with low costs.
Description
Technical Field
The utility model belongs to the technical field of the sofa, concretely relates to angular adjustment mechanism and sofa.
Background
The headrest turnover mechanism is an adjusting structure used for adjusting the supporting angle of a headrest on a sofa or a seat so as to adapt to the use requirements of different people and different postures. The existing headrest turnover mechanism generally comprises a turnover plate connected with a headrest frame, and the turnover plate is controlled by a motor or other driving elements to turn over. In the prior art, the position of a rotating shaft of the headrest is fixed when the headrest overturns, so that impact and extrusion are generated between the headrest frame and the backrest frame or between the headrest coating layer and the backrest coating layer, the headrest is interfered in the overturning process, the angle adjustment of the headrest is not in place, and the service life of the mechanism can be influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to above-mentioned defect, provide angle adjustment mechanism and sofa, headrest angular adjustment is accurate, does not interfere.
The utility model provides a technical scheme that its technical problem adopted as follows:
the utility model provides an angle adjustment mechanism, includes screw-nut, the outside inner tube of lead screw, actuating mechanism on lead screw, the lead screw, and actuating mechanism drive lead screw rotates, and screw-nut connects the inner tube, still including the tilting mechanism who sets up on the inner tube top, the intraductal drive connecting rod that is equipped with of inner, the upper end of lead screw is passed through drive mechanism and is connected drive connecting rod drive its rotation, tilting mechanism is including connecting at the fixing base on inner tube top, arranging intermeshing's turbine, worm in the fixing base in, the worm is connected with the top of drive connecting rod, action part is connected to the turbine, and turbine drive action part overturns when pivoted inner tube drive action part goes up and down.
Further, actuating mechanism includes motor, drive assembly, and motor output shaft connects drive assembly power input end, and drive assembly power output end connects the lead screw, the motor is for having brush direct current motor or brushless direct current motor, drive assembly is planet speed reduction structure or turbine worm structure.
Furthermore, the screw rod nut is in threaded fit with the screw rod, the screw rod nut is connected with the bottom end of the inner pipe, a sleeve connected with the worm is arranged at the top end of the driving connecting rod, an inner hole of the sleeve is a special-shaped hole, and the driving connecting rod and the worm are of a structure matched with the special-shaped hole of the sleeve.
Further, the axle center department of lead screw is equipped with the shaft hole, be equipped with in the shaft hole with shaft hole sliding fit's slider, the slider is fixed in the bottom of drive connecting rod, is equipped with the key on the slider, is equipped with the keyway of cooperation key in the shaft hole, slider, key, keyway constitution drive mechanism.
Further, the bottom axle center department of drive connecting rod is equipped with the connecting rod shaft hole, the lead screw upper end is equipped with the lead screw slider, lead screw slider and shaft hole sliding fit, be equipped with the slider key on the lead screw slider, the connecting rod shaft hole inner wall be equipped with slider key complex slider keyway, lead screw slider, slider key, slider keyway constitute drive mechanism.
Furthermore, both ends tip extends to the fixing base outside respectively about the turbine and is connected with upset actuating mechanism, the bottom of worm extends to the fixing base bottom and is connected with the drive connecting rod through fixed cover, the fixing base is the mosaic structure that left cavity and right cavity are constituteed.
Further, the outer tube is arranged outside the inner tube, the fixing plate is arranged outside the tube body of the outer tube, the mounting seat is arranged at the bottom of the outer tube, the driving mechanism is connected to the mounting seat, the outer tube is provided with a stroke hole, the stroke hole is a long strip-shaped hole along the axial direction of the lead screw, the two ends of the stroke hole are provided with limit switches, the limit switches are detachably connected with the tube wall of the outer tube at the stroke hole, the inner tube is provided with a contact embedded into the stroke hole, and the contact slides up and down in the row Cheng Kongna along with the lifting of the inner tube.
Furthermore, the two ends of the worm wheel are rotatably arranged in the fixed seat through a worm wheel bearing, the two ends of the worm are rotatably arranged in the fixed seat through a worm bearing, a bearing groove for accommodating the worm bearing is formed in the fixed seat, a retaining ring for fixing the worm bearing is arranged on the worm, and the two worm bearings are limited in the fixed seat by the bearing groove to realize the positioning of the worm.
A sofa comprises a base, a backrest, armrests and a headrest, and further comprises the angle adjusting mechanism, wherein the angle adjusting mechanism is arranged in the backrest, and a turbine is connected with the headrest and drives the headrest to lift and turn.
A sofa comprises a base, a backrest, armrests and leg supports, and further comprises the angle adjusting mechanism, wherein the turbine is connected with the leg supports and drives the leg supports to extend and turn.
The utility model has the advantages that: adopt above-mentioned scheme, the headrest is when being driven upset angle of adjustment, and inner tube drive head is going up and down, goes up and down along with in the upset, effectively avoids between headrest frame and back frame, interference between headrest coating and back coating layer, realizes the accurate adjustment of headrest, avoids the structure to interfere to improve the result of use, the utility model has the advantages of simple structure, exquisiteness, be convenient for production, assembly effectively reduce production, use cost, have better application prospect.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of a longitudinal cross-sectional structure according to an embodiment of the present invention.
Fig. 3 is a schematic partial cross-sectional view of a matching portion of the screw rod and the driving link according to an embodiment of the present invention.
Fig. 4 is a schematic sectional view of the fixing base in an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a slider according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a sleeve according to an embodiment of the present invention.
Fig. 7 is a schematic cross-sectional structure diagram of the screw rod according to an embodiment of the present invention.
Fig. 8 is a schematic cross-sectional structure diagram of the slider according to an embodiment of the present invention.
Fig. 9 is a schematic view of a partial structure of the stroke hole according to an embodiment of the present invention.
Fig. 10 is a schematic structural view of the sofa of the present invention.
Fig. 11 is a schematic cross-sectional view of a lead screw slider according to another embodiment of the present invention.
Wherein: the device comprises a screw rod 1, a screw rod nut 2, an inner tube 3, a contact 31, an outer tube 4, a fixing plate 41, a motor 5, a fixing seat 6, a turbine 7, a worm 8, a driving connecting rod 9, a connecting rod shaft hole 91, a sleeve 10, a screw rod sliding block 101, a shaft hole 11, a sliding block 12, a key 121, a key groove 13, a limit switch 14 and a headrest plate 15.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1: an angle adjusting mechanism, refer to fig. 1 and 2, comprises a screw rod 1, a screw rod nut 2 on the screw rod 1, an inner tube 3 outside the screw rod 1, an outer tube 4 outside the inner tube 3, and a motor 5, wherein the motor 5 can adopt a brush direct current motor or a brushless direct current motor, the screw rod 1 is positioned inside the inner tube 3, the outer tube 4 is sleeved outside the inner tube 3, the output end of the motor 5 is connected with a planetary speed reducing mechanism or a worm gear mechanism, the other end of the planetary speed reducing mechanism or the worm gear mechanism is connected with the bottom end of the screw rod 1, the torque of the motor 5 is transmitted to the screw rod 1 to drive the screw rod 1 to rotate, motor 5 department can set up the motor cabinet, the motor cabinet is connected with the bottom of outer tube 4, realize the fixed of motor, planetary reduction mechanism or turbine worm mechanism connect on the motor cabinet, lead screw 1 is in the axle center department of inner tube 3, screw- nut 2 and 1 screw-thread fit of lead screw, lead screw 1 rotates, screw-nut 2 reciprocating motion on lead screw 1, the bottom of inner tube 3 is connected to screw-nut 2, lead screw 1 rotates, screw-nut 2 drives the reciprocating motion about the axial of inner tube 3 along lead screw 1, in order to realize going up and down, use motor 5 side as the bottom in this embodiment, relative opposite side is the upper end.
The top end of the inner tube 3 is provided with a turnover mechanism, referring to fig. 4, the turnover mechanism comprises a fixed seat 6 fixed at the top end of the inner tube 3, a turbine 7 and a worm 8 in the fixed seat 6, an inner cavity for accommodating the turbine 7 and the worm 8 is arranged in the fixed seat 6, two ends of the turbine 7 are rotatably arranged in the fixed seat 6 through a worm gear bearing, two end parts of the turbine 7 extend outwards to the outside of the fixed seat 6, two end parts of the turbine 7 are connected with pillow plates 15, two ends of the worm 8 are rotatably arranged in the fixed seat 6 through the worm bearing, a bearing groove for accommodating the worm bearing is arranged in the fixed seat 6, the worm is provided with a retainer ring for fixing the worm bearing, the worm bearing is embedded in the bearing groove, the worm bearing is limited in the bearing groove, the worm is positioned in the fixed seat 6 and can only rotate along the axial direction, the bottom end of the worm 8 penetrates through the bottom end of the fixed seat 6 and extends into the inner tube 3, a driving connecting rod 9 is arranged at the axis center of the inner tube 1, the top end of the driving connecting rod 9 is connected with the bottom end of the worm 8 through a sleeve 10, the driving connecting rod 9 is connected with the top end of the worm 1 through a transmission mechanism, the worm 8, the worm is transmitted to drive the worm rod 8, thereby driving the worm 8, and the worm head plate rotates, when the headrest is adjusted, the headrest is overturned and the lifting motion of the headrest is accompanied at the same time, the position of the rotating shaft is changed when the headrest is overturned, the interference between the headrest frame and the backrest frame, between the headrest coating layer and the backrest coating layer is eliminated, the precision of the angle adjustment of the headrest is effectively improved, the using effect is improved, the lifting overturning and lifting functions are integrated, the structure is exquisite, two driving actions are realized at the same time, and the headrest has a better application prospect.
Specifically, referring to fig. 7 and 8, an axial hole 11 is formed in an axial center of the lead screw 1, a slider 12 in sliding fit with the axial hole 11 is arranged in the axial hole 11, the slider 12 is fixed at the bottom end of the driving connecting rod 9, referring to fig. 5, a key 121 is arranged on the slider 12, a key groove 13 matched with the key 121 is arranged on the wall of the axial hole 11, the slider 12, the key 121 and the key groove 13 form a transmission mechanism, as a preferred embodiment, the axial hole 11 is a special-shaped hole, the structure of the slider 12 is matched with the axial hole 11, the key 121 is a part of the slider 12, the slider 12 and the axial hole 11 are matched to enable the slider 12 and the lead screw 1 to synchronously rotate, and meanwhile, the slider 12 can slide up and down in the axial hole 1 of the lead screw 1.
Referring to fig. 5, sleeve pipe 10's hole is the dysmorphism hole, if can adopt regular hexagon hole, regular pentagon hole, drive connecting rod 9's top, worm 8's bottom be with sleeve pipe 10 hole complex structure, sleeve pipe 10's setting is convenient for drive connecting rod 9 and worm 8's connection assembly operation, realize rapid Assembly, improve production efficiency, promote the convenience of use, for the equipment of being convenient for, fixing base 6 is the mosaic structure that left cavity and right cavity are constituteed, so that quick assembly turbine 7, worm 8, realize the promotion of efficiency.
Referring to fig. 1, a fixing plate 41 is arranged outside a tube body of an outer tube 4, the fixing plate 41 is used for connecting and fixing the plate mechanism, referring to fig. 9, a long-strip-shaped stroke hole 42 along the axial direction of a screw rod 1 is formed in the tube body of the outer tube 4, limit switches 14 are arranged at two ends of the row Cheng Kong, the limit switches can adopt micro switches, the tube walls of the outer tube 4 at the positions, corresponding to the stroke holes 42, of the limit switches 14 are detachably connected through screws, a contact 31 embedded into the stroke hole 42 is arranged on the inner tube 3, the contact 31 slides up and down in the stroke hole 42 along with the lifting of the inner tube 3, when the contact 31 is in contact with the corresponding limit switches 14, stroke limitation is triggered, the motor 5 rotates reversely, the inner tube 3 runs reversely, and the lifting stroke is controlled.
Referring to fig. 9, the sofa comprises a base, a backrest, armrests, a headrest and an angle adjusting mechanism, wherein an outer tube 4 and a motor 5 are embedded in the backrest, the outer tube 4 is connected with the backrest through a fixing plate 41, a turbine 7 is connected with a headrest plate, the headrest plate is connected with the headrest, the headrest can be overturned when the headrest is lifted, linkage of lifting and overturning of the headrest is achieved, and the structural cost of the sofa is reduced.
Example 2: the difference between the embodiment and embodiment 1 is that, in this embodiment, referring to fig. 11, a connecting rod shaft hole 91 is arranged at the bottom end axis of the driving connecting rod 9, a lead screw slider 101 is fixed at the upper end of the lead screw 1, the lead screw slider 101 is in sliding fit with the shaft hole 91, a slider key is arranged on the lead screw slider 101, a slider key groove matched with the slider key is arranged on the inner wall of the connecting rod shaft hole 91, preferably, the connecting rod shaft hole 91 is a special-shaped hole, the structure of the lead screw slider 101 is in structural fit with the connecting rod shaft hole 91, it is ensured that the lead screw slider 101 can slide in the axial direction in the connecting rod shaft hole 91, and meanwhile, it is ensured that the torque of the lead screw 1 can synchronously rotate to the driving connecting rod 9, so as to realize synchronous rotation transmission.
Example 3: the utility model provides a sofa, includes that base, back, handrail, leg hold in the palm, still includes angle adjustment mechanism, and the leg layer board in the leg support is connected to turbine 8, and 3 drive legs of inner tube hold in the palm extension around, and simultaneously, turbine 8 promote the leg layer board and overturn, realize that the leg holds in the palm and extend around and open and can overturn certain angle when, improve the result of use.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.
Claims (10)
1. The utility model provides an angle adjustment mechanism, includes screw rod, the screw-nut on the lead screw, the outside inner tube of lead screw, actuating mechanism, and actuating mechanism drive lead screw rotates, and screw-nut connects inner tube, its characterized in that: still including setting up the tilting mechanism on inner tube top, the inner tube in be equipped with the drive connecting rod, the upper end of lead screw connect drive connecting rod drive its rotation through drive mechanism, tilting mechanism including connect the fixing base on inner tube top, arrange intermeshing's turbine, worm in the fixing base in, the worm be connected with the top of drive connecting rod, the turbine connect the action part, turbine drive action part upset when pivoted inner tube drive action part goes up and down.
2. The angular adjustment mechanism of claim 1, wherein: the driving mechanism comprises a motor and a transmission assembly, wherein a motor output shaft is connected with a power input end of the transmission assembly, a power output end of the transmission assembly is connected with a lead screw, the motor is a brush direct current motor or a brushless direct current motor, and the transmission assembly is of a planetary reduction structure or a worm and gear structure.
3. The angular adjustment mechanism of claim 1, wherein: the screw rod nut is in threaded fit with the screw rod, the screw rod nut is connected with the bottom end of the inner pipe, a sleeve connected with the worm is arranged at the top end of the driving connecting rod, an inner hole of the sleeve is a special-shaped hole, and the driving connecting rod and the worm are of a structure matched with the special-shaped hole of the sleeve.
4. The angular adjustment mechanism of claim 1, wherein: the axle center department of lead screw is equipped with the shaft hole, is equipped with in the shaft hole with shaft hole sliding fit's slider, the slider is fixed in the bottom of drive connecting rod, is equipped with the key on the slider, is equipped with the keyway of cooperation key in the shaft hole, slider, key, keyway constitution drive mechanism.
5. The angular adjustment mechanism of claim 1, wherein: the bottom axle center department of drive connecting rod is equipped with the connecting rod shaft hole, the lead screw upper end is equipped with the lead screw slider, and lead screw slider and shaft hole sliding fit are equipped with the slider key on the lead screw slider, and connecting rod shaft hole inner wall is equipped with the slider keyway with slider key complex, and lead screw slider, slider key, slider keyway constitute drive mechanism.
6. The angular adjustment mechanism of claim 1, wherein: the left end and the right end of the turbine respectively extend to the outer side of the fixed seat to be connected with the overturning executing mechanism, the bottom end of the worm extends to the bottom of the fixed seat and is connected with the driving connecting rod through the fixed sleeve, and the fixed seat is of a splicing structure consisting of a left cavity and a right cavity.
7. The angular adjustment mechanism of claim 1, wherein: the outer tube is arranged outside the inner tube, a fixing plate is arranged outside a tube body of the outer tube, a mounting seat is arranged at the bottom of the outer tube, the driving mechanism is connected to the mounting seat, a stroke hole is formed in the outer tube and is a long strip-shaped hole along the axial direction of the screw rod, limit switches are arranged at two ends of the stroke hole and are detachably connected with the tube wall of the outer tube at the stroke hole, a contact embedded into the stroke hole is arranged on the inner tube, and the contact slides up and down in the line Cheng Kongna along with the lifting of the inner tube.
8. The angular adjustment mechanism of claim 6, wherein: the two ends of the worm wheel are rotatably arranged in the fixed seat through worm wheel bearings, the two ends of the worm are rotatably arranged in the fixed seat through worm bearings, bearing grooves for accommodating the worm bearings are formed in the fixed seat, retainer rings for fixing the worm bearings are arranged on the worm, and the two worm bearings are limited in the fixed seat by the bearing grooves to realize the positioning of the worm.
9. A sofa comprising a base, a backrest, armrests and a headrest, and further comprising an angle adjusting mechanism as claimed in any one of claims 1 to 8, wherein the angle adjusting mechanism is disposed in the backrest, and a worm gear is connected to the headrest to drive the headrest to ascend, descend and turn.
10. A sofa comprising a base, a backrest, armrests and leg rests, wherein the sofa further comprises an angle adjusting mechanism as claimed in any one of claims 1-8, wherein the turbine is connected with the leg rests to drive the leg rests to extend and turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222159044.1U CN218419109U (en) | 2022-08-16 | 2022-08-16 | Angle adjustment mechanism and sofa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222159044.1U CN218419109U (en) | 2022-08-16 | 2022-08-16 | Angle adjustment mechanism and sofa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218419109U true CN218419109U (en) | 2023-02-03 |
Family
ID=85095889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222159044.1U Expired - Fee Related CN218419109U (en) | 2022-08-16 | 2022-08-16 | Angle adjustment mechanism and sofa |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218419109U (en) |
-
2022
- 2022-08-16 CN CN202222159044.1U patent/CN218419109U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230203 |