CN112603085B - Multifunctional adjusting device of swivel chair chassis and application method thereof - Google Patents
Multifunctional adjusting device of swivel chair chassis and application method thereof Download PDFInfo
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- CN112603085B CN112603085B CN202011558515.5A CN202011558515A CN112603085B CN 112603085 B CN112603085 B CN 112603085B CN 202011558515 A CN202011558515 A CN 202011558515A CN 112603085 B CN112603085 B CN 112603085B
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- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/18—Chairs or stools with rotatable seat
Abstract
The invention relates to the technical field of swivel chairs, in particular to a multifunctional adjusting device of a swivel chair chassis and a use method thereof, wherein the device comprises a shell and a backrest mounting plate, the backrest mounting plate is hinged on the shell through a main pin shaft, a jacking shaft parallel to the main pin shaft is arranged on the backrest mounting plate, an elastic component, an adjusting component and a pushing block are arranged in the shell, the elastic component comprises a first spring and a second spring, one end of the first spring and one end of the second spring are jointly abutted on the adjusting component, and the adjusting component adjusts the included angle between the first spring and the second spring; the method comprises the steps of firstly, unlocking; step two, an elasticity adjusting process, which comprises the following steps: angle adjustment and effective circle number adjustment; and step three, lifting and adjusting the working procedure. The included angle between the first spring and the second spring is quickly adjusted through the adjusting component, and meanwhile the included angle adjustment and the effective circle number adjustment are matched through the adjusting methods of the unlocking procedure, the elastic adjusting procedure and the lifting adjusting procedure, so that the adjusting speed is high, and the elastic force is large.
Description
Technical Field
The invention relates to the technical field of swivel chairs, in particular to a multifunctional adjusting device of a swivel chair chassis and a use method thereof.
Background
The swivel chair tray, also called swivel chair chassis, is an important component arranged below the swivel chair seat cushion, and can realize the lifting of the seat cushion and the adjustment of the tilting angle of the backrest. The prior swivel chair tray is generally composed of a tray body, a rocker, a rotating shaft, a spring device and other parts, wherein the rocker is fixed with the back of a swivel chair seat, and the swivel chair back can be properly tilted around the rotating shaft and can elastically recover, so that a user has comfort. The elastic force of the existing swivel chair backrest is not large enough, and the adjustment is troublesome.
Patent document CN201410479184.4 discloses a back of chair wane locking mechanical system for swivel chair chassis, including locking plate, torsional spring a, bolt and bolt seat, be equipped with a row of lockhole on the locking plate, locking plate and fourth round pin axle are fixed link to each other and follow fourth round pin axle synchronous motion under the effect of wane, fourth round pin axle is a whole major axis, the bolt seat is located the side of locking plate and the fixed link to each other of bolt seat and chassis's base, the bolt slides and alternates on the bolt seat and cooperates with the lockhole, torsional spring a's first spring arm links to each other with the bolt, torsional spring a's second spring arm is connected to a drive arrangement who is used for driving torsional spring a round trip to rotate.
However, during use, the inventors found that the swivel chair tray cannot be quickly adjusted for the stiffness of the springs and the magnitude of the elastic force is not large enough.
Disclosure of Invention
In view of the above problems, one of the purposes of the present invention is to provide a multifunctional adjusting device for a swivel chair chassis, which can quickly adjust an included angle between a first spring and a second spring through an adjusting component, so that an elastic force of an elastic component acting on a backrest mounting plate can be quickly adjusted, the elasticity is high, and the problems that the hardness of the swivel chair tray to the spring cannot be quickly adjusted and the magnitude of the elastic force is not high in the prior art are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a multifunctional adjusting device on swivel chair chassis, includes casing and back mounting panel, the back mounting panel pass through the king pin axle articulate in on the casing, be equipped with on the back mounting panel with the top advance axle of king pin axle parallel, its characterized in that: the novel lifting device is characterized in that an elastic component, an adjusting component and a pushing block are arranged in the shell, the elastic component comprises a first spring and a second spring, one end of the first spring and one end of the second spring are jointly abutted to the adjusting component, the adjusting component adjusts the included angle between the first spring and the second spring, the other end of the first spring and the other end of the second spring are jointly hinged to one side of the pushing block, and the pushing block is sleeved on the pushing shaft.
As an improvement, further comprising an angle adjustment assembly comprising:
the adjusting plate is sleeved on the main pin shaft and the jacking shaft, the adjusting plate swings around the main pin shaft along with the backrest mounting plate, a plurality of gear holes are formed in the free swinging end part of the adjusting plate, and locking holes are formed in the shell at positions corresponding to the gear holes;
the lock rod is arranged on the shell in a sliding way along the axis of the locking hole and can be inserted into the gear hole in a matched way to lock the adjusting plate; and
the first adjusting rod is arranged outside the shell and penetrates through the side wall of the shell to be in transmission connection with the lock rod.
As an improvement, the adjusting assembly comprises:
a rotating handle penetrating from outside the housing into the housing interior cavity, the rotating handle being free to rotate relative to the housing;
the first transmission gear group is arranged at the transmission end part of the rotary handle;
the screw is arranged in the shell along the vertical direction, and the first transmission gear group transmits the screw to rotate; and
the movable part A is sleeved on the screw rod, the screw rod rotates forward and backward to drive the movable part A to reciprocate up and down, and the movable part A is hinged to drive the first spring to change the included angle of the first spring relative to the second spring.
The improved structure of the movable part comprises a movable part B, wherein the movable part B is sleeved on the screw rod, the screw rod rotates forward and backward to drive the movable part B to reciprocate up and down, and the movable part B is hinged to drive the second spring to change the included angle of the second spring relative to the first spring.
As an improvement, one end of the screw rod is provided with a right-handed thread, and the other end of the screw rod is provided with a left-handed thread.
The improved rotating device comprises a first spring, a first coil adjusting unit, a second coil adjusting unit and a third coil adjusting unit, wherein the first coil adjusting unit is arranged at the end part of the first spring and used for adjusting elastic force of the first spring, the first coil adjusting unit comprises a connecting piece, a rotating driving wheel a, a rotating rod and a separating piece, the connecting piece is connected with the first spring and the moving piece A, the rotating rod is rotationally arranged in the connecting piece, a rack is arranged on the inner wall of a shell, the rotating driving wheel a is in meshed transmission with the rack, the rotating driving wheel a drives the rotating rod to rotate, the separating piece is arranged at the end part of the rotating rod, and the separating piece is inserted into a gap of the first spring and used for adjusting the effective coil number of the first spring.
The improved coil spring comprises a first spring, a second spring, a coil spring adjusting unit and a screw rod, wherein the first spring is arranged at the end part of the first spring, the second spring is arranged at the end part of the second spring, the elastic force of the second spring is adjusted, the first spring comprises a rotary driving wheel b, the rotary driving wheel b is arranged as a bevel gear, and the top of the screw rod is provided with a bevel gear which is meshed with the rotary driving wheel b for transmission.
As an improvement, the end of the second spring is also provided with a group of first turn adjusting units.
As the improvement, still include the lift and stir the subassembly, the lift is stirred the subassembly and is included:
the third adjusting rod is sleeved on the second adjusting rod, and the third adjusting rod stretches into the inner cavity of the shell and is integrally connected with a top plate; and
the swinging piece is sleeved on the main pin shaft, and the top plate is abutted to drive the swinging piece to swing around the main pin shaft.
Aiming at the problems, the second object of the invention is to provide a multifunctional adjusting method of the swivel chair chassis, which is used for adjusting the magnitude of the elastic force rapidly by matching the adjusting methods of the unlocking procedure, the elastic adjusting procedure and the lifting adjusting procedure with the included angle adjustment and the effective circle number adjustment.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the multifunctional adjusting method of the swivel chair chassis is characterized by comprising the following steps of:
step one, an unlocking procedure, namely rotating a first adjusting rod to enable a lock rod to be separated from a gear hole, wherein the adjusting plate can be driven by a backrest mounting plate to rotate around a main pin shaft;
step two, an elasticity adjusting process, which comprises the following steps:
a) The included angle is adjusted, and the included angle of the first spring relative to the second spring is adjusted through rotating the handle, so that the resultant force of the first spring and the second spring is adjusted, and the elastic restoring force of the backrest mounting plate is adjusted;
b) The effective turns are adjusted, the first and second turns are driven by the rotating rod to rotate by the partition pieces in the first and second turns adjusting units while the angle between the first and second springs is changed, and the partition pieces change the effective turns of the first and second springs so as to change the elastic force of the first and second springs;
and thirdly, in the lifting adjustment procedure, the third adjusting rod is shifted to push the swinging piece to swing around the main pin shaft, and the swinging piece is used for controlling the lifting of the shell.
The invention has the beneficial effects that:
(1) According to the invention, the included angle between the first spring and the second spring is quickly adjusted through the adjusting component, and meanwhile, the elastic force of the elastic component acting on the backrest mounting plate is quickly adjusted and the elasticity is large through the adjustment methods of the unlocking procedure, the elastic adjusting procedure and the lifting adjusting procedure in combination with the included angle adjustment and the effective circle number adjustment;
(2) According to the invention, the moving part B is arranged on the second spring to synchronously move in cooperation with the moving part A, so that the angle of the first spring and the angle of the second spring are changed at the same time, and the time of using the device can be regulated further and faster;
(3) According to the invention, the effective number of turns of the first spring is regulated by arranging the number-of-turns regulating unit in the first spring, so that the elastic force of the first spring is increased;
(4) According to the invention, the effective number of turns of the second spring is adjusted by arranging the number-of-turns adjusting unit II in the second spring so as to adjust the elastic force of the second spring, and the elastic force of the elastic component on the backrest mounting plate is further adjusted by matching with the first spring.
In conclusion, the invention has the advantages of quick adjustment, large elastic force, high reliability and the like, and is particularly suitable for the technical field of swivel chairs.
Drawings
FIG. 1 is a schematic diagram of the overall axial measurement of the present invention.
FIG. 2 is a schematic diagram of the internal structure of the present invention.
Fig. 3 is a schematic elevational cross-sectional view of the present invention.
FIG. 4 is a schematic diagram of embodiment 2 of the present invention.
FIG. 5 is a schematic diagram of embodiment 3 of the present invention.
FIG. 6 is a second schematic diagram of embodiment 3 of the present invention.
FIG. 7 is a schematic diagram of example 4 of the present invention.
FIG. 8 is a schematic diagram of example 5 of the present invention.
Fig. 9 is a process flow diagram of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1:
as shown in fig. 1 to 3, a multifunctional adjusting device of a swivel chair chassis comprises a shell 1 and a backrest mounting plate 2, wherein the backrest mounting plate 2 is hinged on the shell 1 through a main pin shaft 21, a jacking shaft 22 parallel to the main pin shaft 21 is arranged on the backrest mounting plate 2, an elastic component 4, an adjusting component 5 and a pushing block 6 are arranged in the shell 1, the elastic component 4 comprises a first spring 41 and a second spring 42, one end of the first spring 41 and one end of the second spring 42 are abutted together on the adjusting component 5, an included angle between the first spring 41 and the second spring 42 is adjusted by the adjusting component 5, the other end of the first spring 41 and the other end of the second spring 42 are hinged together on one side of the pushing block 6, and the pushing block 6 is sleeved on the jacking shaft 22.
Further, the angle adjusting assembly 3 is further included, and the angle adjusting assembly 3 includes:
the adjusting plate 31 is sleeved on the main pin shaft 21 and the jacking shaft 22, the adjusting plate 31 swings around the main pin shaft 21 along with the backrest mounting plate 2, a plurality of gear holes 311 are formed in the free swinging end part of the adjusting plate 31, and a locking hole 11 is formed in the shell 1 corresponding to the gear holes 311;
a lock lever 32, wherein the lock lever 32 is slidably disposed on the housing 1 along the axis of the locking hole 11, and the lock lever 32 can be inserted into the gear hole 311 in a matching manner to lock the adjusting plate 31; and
the first adjusting rod 33 is arranged outside the shell 1, and the first adjusting rod 33 penetrates through the side wall of the shell 1 and is in transmission connection with the lock rod 32.
It should be noted that, the backrest mounting plate 2 is integrally connected with the adjusting plate 31 through the main pin shaft 21 and the jacking shaft 22, and after the locking lever 32 unlocks the adjusting plate 31, a person on the seat leans back the backrest mounting plate 2 so that the adjusting plate 31 freely rotates around the main pin shaft 21.
Further, the adjusting assembly 5 includes:
a rotary handle 51, wherein the rotary handle 51 penetrates into the inner cavity of the shell 1 from the outside of the shell 1, and rotates freely relative to the shell 1;
a first transmission gear set 52, wherein the first transmission gear set 52 is arranged at the transmission end part of the rotary handle 51;
a screw 53, wherein the screw 53 is arranged in the housing 1 along the vertical direction, and the first driving gear group 52 drives the screw 53 to rotate; and
the moving part A54 is sleeved on the screw rod 53, the screw rod 53 rotates forward and backward to drive the moving part A54 to reciprocate up and down, and the moving part A54 is hinged to drive the first spring 41 to change the included angle of the first spring 41 relative to the second spring 42.
The angle of the first spring 41 with respect to the second spring 42 is changed so that the resultant force acting on the backrest mounting plate 2 is changed, thereby achieving the adjustment of the elastic force of the backrest mounting plate 2.
Further, still include lift and stir subassembly 8, lift and stir subassembly 8 includes:
the third adjusting rod 81 is sleeved on the second adjusting rod 721, and the third adjusting rod 81 extends into the inner cavity of the shell 1 and is integrally connected with a top plate 82; and
the swinging piece 83 is sleeved on the main pin shaft 21, and the top plate 82 is in contact with and drives the swinging piece 83 to swing around the main pin shaft 21.
Example 2:
for simplicity, only the differences between embodiment 2 and embodiment 1 are described below; this embodiment 2 is different from embodiment 1 in that:
as shown in fig. 4, in this embodiment, the device further includes a moving member B55, the moving member B55 is sleeved on the screw 53, the screw 53 rotates forward and backward to drive the moving member B55 to reciprocate up and down, and the moving member B55 articulates to drive the second spring 42 to change the included angle of the second spring 42 relative to the first spring 41.
Further, one end of the screw 53 is provided with a right-handed thread, and the other end is provided with a left-handed thread.
Specifically, the moving member B55 cooperates with the moving member a54 to quickly adjust the included angle of the second spring 42 relative to the first spring 41, so that the elastic force applied to the backrest mounting plate 2 is greater, and the adjustment is faster.
Example 3:
for simplicity, only the points of distinction of example 3 from example 1 or example 2 will be described below; this embodiment 3 is different from embodiment 1 or embodiment 2 in that:
as shown in fig. 5 and 6, in this embodiment, the device further includes a first turn number adjusting unit 56, where the first turn number adjusting unit 56 is disposed at an end of the first spring 41 to adjust the elastic force of the first spring 41, the first turn number adjusting unit 56 includes a connecting member 561, a rotary driving wheel a562, a rotating rod 563, and a partition 564, the connecting member 561 connects the first spring 41 and the moving member a54, the rotating rod 563 is rotatably disposed in the connecting member 561, a rack 12 is disposed on an inner wall of the housing 1, the rotary driving wheel a562 is in meshed transmission with the rack 12, the rotary driving wheel a562 drives the rotating rod 563, the partition 564 is disposed at an end of the rotating rod 563, and the partition 563 is inserted into a gap of the first spring 41 to adjust an effective turn number of the first spring 41.
The spring rate of the spring is related to the diameter of the spring, the wire diameter of the spring, the material of the spring, and the effective number of turns of the spring. The specific relation is as follows: inversely proportional to the diameter of the coil, directly proportional to the wire diameter of the spring to the power 4, directly proportional to the modulus of elasticity of the material of the spring, and inversely proportional to the effective number of turns of the spring. While the moving member a54 drives the first spring 41 to move, the rotary driving wheel a562 drives the spacer 564 to rotate through the rotating lever 563 to change the effective number of turns of the first spring 41, further adjusting the elastic force.
Example 4:
for simplicity, only the points of distinction of example 4 from example 1 or example 2 or example 3 are described below; this embodiment 4 is different from embodiment 1 or embodiment 2 or embodiment 3 in that:
as shown in fig. 7, in this embodiment, the device further includes a second coil adjusting unit 57, where the second coil adjusting unit 57 is disposed at an end of the second spring 42 to adjust the elastic force of the second spring 42, the second coil adjusting unit 57 includes a rotary driving wheel b571, the rotary driving wheel b571 is configured as a bevel gear, and a bevel gear 531 engaged with the rotary driving wheel b571 is disposed at a top of the screw 53.
It should be noted that, the second coil adjusting unit 57 further includes a connecting member 561, a rotating rod 563, and a partition 564, where the connecting member 561 connects the second spring 42 and the moving member B55, the rotating rod 563 is rotatably disposed in the connecting member 561, the rotating driving wheel B571 is meshed with the bevel gear 531 to drive the rotating rod 563 to rotate, the partition 564 is disposed at an end of the rotating rod 563, and the partition 564 is inserted into a gap of the second spring 42 to adjust an effective coil number of the second spring 42.
Example 5:
for simplicity, only the differences between example 5 and example 3 are described below; this embodiment 5 is different from embodiment 3 in that:
as shown in fig. 8, in the present embodiment, the end of the second spring 42 is also provided with a set of the turn number adjusting units 56.
It should be noted that, in the process of adjusting the included angle between the second spring 42 and the first spring 41, the effective number of turns of the springs are adjusted synchronously by the separator 564, and the structure is simple and reliable.
Example 6:
as shown in fig. 9, a multifunctional adjustment method for a swivel chair chassis is characterized by comprising the following steps:
step one, an unlocking procedure, namely rotating the first adjusting rod 33 to enable the lock rod 32 to be separated from the gear hole 311, wherein the adjusting plate 31 can be driven by the backrest mounting plate 2 to rotate around the main pin shaft 21;
step two, an elasticity adjusting process, which comprises the following steps:
c) The included angle is adjusted, and the included angle of the first spring 41 relative to the second spring 42 is adjusted by rotating the handle 51, so that the resultant force of the first spring 41 and the second spring 42 is adjusted, and the elastic restoring force of the backrest mounting plate 2 is adjusted;
d) Effective turns adjustment, the divider 564 in the first and second turns adjustment units 56 and 57 is driven to rotate by the rotating lever 563 while the angle between the first and second springs 41 and 42 is changed, the divider 564 changing the effective turns of the first and second springs 41 and 42 to change the elastic force thereof;
and step three, in the lifting adjustment procedure, the third adjusting rod 81 is shifted to push the swinging piece 83 to swing around the main pin shaft 21, and the swinging piece 83 is used for controlling the lifting of the shell 1.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The utility model provides a multifunctional adjusting device on swivel chair chassis, includes casing (1) and back mounting panel (2), back mounting panel (2) pass through king pin axle (21) articulated in on casing (1), be equipped with on back mounting panel (2) with jacking axle (22) of king pin axle (21) parallel, its characterized in that: elastic components (4), adjusting components (5) and pushing blocks (6) are arranged in the shell (1), the elastic components (4) comprise first springs (41) and second springs (42), one ends of the first springs (41) and one ends of the second springs (42) are jointly abutted to the adjusting components (5), the included angles of the first springs (41) and the second springs (42) are adjusted by the adjusting components (5), the other ends of the first springs (41) and the other ends of the second springs (42) are jointly hinged to one side of the pushing blocks (6), and the pushing blocks (6) are sleeved on the pushing shafts (22);
the adjusting assembly (5) comprises:
a rotating handle (51), wherein the rotating handle (51) penetrates from the outside of the shell (1) into the inner cavity of the shell (1), and the rotating handle freely rotates relative to the shell (1);
a first transmission gear group (52), wherein the first transmission gear group (52) is arranged at the transmission end part of the rotary handle (51);
the screw rod (53) is arranged in the shell (1) along the vertical direction, and the first transmission gear group (52) drives the screw rod (53) to rotate; and
the moving part A (54) is sleeved on the screw rod (53), the screw rod (53) rotates forward and backward to drive the moving part A (54) to reciprocate up and down, and the moving part A (54) is hinged to drive the first spring (41) to change the included angle of the first spring (41) relative to the second spring (42).
2. A multifunctional adjustment device of a swivel chair chassis according to claim 1, further comprising an angle adjustment assembly (3), said angle adjustment assembly (3) comprising:
the adjusting plate (31) is sleeved on the main pin shaft (21) and the jacking shaft (22), the adjusting plate (31) swings around the main pin shaft (21) along with the backrest mounting plate (2), a plurality of gear holes (311) are formed in the free swinging end part of the adjusting plate (31), and locking holes (11) are formed in the shell (1) corresponding to the gear holes (311);
the lock rod (32) is arranged on the shell (1) in a sliding way along the axis of the locking hole (11), and the lock rod (32) can be inserted into the gear hole (311) in a matching way to lock the adjusting plate (31); and
the first adjusting rod (33) is arranged outside the shell (1), and the first adjusting rod (33) penetrates through the side wall of the shell (1) and is in transmission connection with the lock rod (32).
3. The multifunctional adjusting device of the swivel chair chassis according to claim 2, further comprising a moving member B (55), wherein the moving member B (55) is sleeved on the screw rod (53), the screw rod (53) rotates forward and backward to drive the moving member B (55) to reciprocate up and down, and the moving member B (55) articulates to drive the second spring (42) to change an included angle of the second spring (42) relative to the first spring (41).
4. A multifunctional adjusting device of a swivel chair chassis according to claim 3, characterized in that one end of the screw (53) is provided as a right-hand thread and the other end is provided as a left-hand thread.
5. The multifunctional adjusting device of a swivel chair chassis according to claim 2, further comprising a first turn adjusting unit (56), wherein the first turn adjusting unit (56) is disposed at an end of the first spring (41) to adjust the elastic force of the first spring (41), the first turn adjusting unit (56) comprises a connecting piece (561), a rotary driving wheel a (562), a rotary rod (563) and a partition (564), the connecting piece (561) connects the first spring (41) and the movable piece a (54), the rotary rod (563) is rotatably disposed in the connecting piece (561), a rack (12) is disposed on an inner wall of the housing (1), the rotary driving wheel a (562) is in meshed transmission with the rack (12), the rotary driving wheel a (562) drives the rotary rod (563) to rotate, the partition (564) is disposed at an end of the rotary rod (563), and the partition (564) is inserted into the first spring (564) to adjust the effective turn number of the first spring (41).
6. The multifunctional adjusting device of the swivel chair chassis according to claim 5, further comprising a second coil adjusting unit (57), wherein the second coil adjusting unit (57) is arranged at the end part of the second spring (42) to adjust the elastic force of the second spring (42), the second coil adjusting unit (57) comprises a rotary driving wheel b (571), the rotary driving wheel b (571) is arranged as a bevel gear, and a bevel gear (531) which is meshed with the rotary driving wheel b (571) is arranged at the top of the screw (53).
7. A multifunctional adjustment device of a swivel chair chassis according to claim 5, characterized in that the end of the second spring (42) is also provided with a set of said lap adjustment units (56).
8. The multifunctional adjustment device of a swivel chair chassis according to claim 6, further comprising a lifting toggle assembly (8), the lifting toggle assembly (8) comprising:
the third adjusting rod (81), the third adjusting rod (81) is sleeved on the second adjusting rod (721), the third adjusting rod (81) stretches into the inner cavity of the shell (1) and is integrally connected with a top plate (82); and
the swinging piece (83), the swinging piece (83) is sleeved on the main pin shaft (21), and the top plate (82) is in conflict driving to swing the swinging piece (83) around the main pin shaft (21).
9. The multifunctional adjusting method of the multifunctional adjusting device of the swivel chair chassis according to claim 8, comprising the steps of:
step one, an unlocking procedure, namely rotating a first adjusting rod (33) to enable a lock rod (32) to be separated from a gear hole (311), wherein an adjusting plate (31) can be driven by a backrest mounting plate (2) to rotate around a main pin shaft (21);
step two, an elasticity adjusting process, which comprises the following steps:
a) The included angle is adjusted, and the included angle of the first spring (41) relative to the second spring (42) is adjusted through rotating the handle (51), so that the resultant force of the first spring (41) and the second spring (42) is adjusted, and the elastic restoring force of the backrest mounting plate (2) is adjusted;
b) Effective turns adjustment, wherein the first turns adjustment unit (56) and the second turns adjustment unit (57) are driven to rotate by the rotating rod (563) at the same time of angle change between the first spring (41) and the second spring (42), and the effective turns of the first spring (41) and the second spring (42) are changed by the separator (564) so as to change the elastic force of the first spring (41) and the second spring (42);
and thirdly, in the lifting adjustment procedure, the third adjusting rod (81) is shifted to push the swinging piece (83) to swing around the main pin shaft (21), and the swinging piece (83) is used for controlling the lifting of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011558515.5A CN112603085B (en) | 2020-12-25 | 2020-12-25 | Multifunctional adjusting device of swivel chair chassis and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011558515.5A CN112603085B (en) | 2020-12-25 | 2020-12-25 | Multifunctional adjusting device of swivel chair chassis and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112603085A CN112603085A (en) | 2021-04-06 |
| CN112603085B true CN112603085B (en) | 2024-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011558515.5A Active CN112603085B (en) | 2020-12-25 | 2020-12-25 | Multifunctional adjusting device of swivel chair chassis and application method thereof |
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| Country | Link |
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| CN (1) | CN112603085B (en) |
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| CN202874564U (en) * | 2012-09-18 | 2013-04-17 | 浙江永艺家具股份有限公司 | Swivel chair chassis |
| CN104207520A (en) * | 2014-09-18 | 2014-12-17 | 浙江永艺家具股份有限公司 | Chair back and rocker locking mechanism for chassis of swivel chair |
| WO2015043472A1 (en) * | 2013-09-24 | 2015-04-02 | 浙江永艺家具股份有限公司 | Chassis for swivel chair |
| CN209202451U (en) * | 2018-09-07 | 2019-08-06 | 杭州中泰实业集团有限公司 | Revolving chair tray wide-angle gear returns safely power protection mechanism |
| CN210121003U (en) * | 2019-06-04 | 2020-03-03 | 杭州中泰实业集团有限公司 | Quick adjusting mechanism for grouping and matching of multiple springs of swivel chair tray |
| CN213962547U (en) * | 2020-11-27 | 2021-08-17 | 浙江泰丰家具有限公司 | Swivel chair chassis convenient to elastic component fast assembly |
| CN214103884U (en) * | 2020-11-27 | 2021-09-03 | 浙江泰丰家具有限公司 | Swivel chair tray convenient to adjust |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007022015A1 (en) * | 2006-10-13 | 2008-04-17 | Bock 1 Gmbh & Co. Kg | Mechanics for an office chair |
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| CN102356967A (en) * | 2011-09-20 | 2012-02-22 | 林育文 | Automatically-adjusting waist-abutting device and rotary chair |
| CN202874564U (en) * | 2012-09-18 | 2013-04-17 | 浙江永艺家具股份有限公司 | Swivel chair chassis |
| WO2015043472A1 (en) * | 2013-09-24 | 2015-04-02 | 浙江永艺家具股份有限公司 | Chassis for swivel chair |
| CN104207520A (en) * | 2014-09-18 | 2014-12-17 | 浙江永艺家具股份有限公司 | Chair back and rocker locking mechanism for chassis of swivel chair |
| CN209202451U (en) * | 2018-09-07 | 2019-08-06 | 杭州中泰实业集团有限公司 | Revolving chair tray wide-angle gear returns safely power protection mechanism |
| CN210121003U (en) * | 2019-06-04 | 2020-03-03 | 杭州中泰实业集团有限公司 | Quick adjusting mechanism for grouping and matching of multiple springs of swivel chair tray |
| CN213962547U (en) * | 2020-11-27 | 2021-08-17 | 浙江泰丰家具有限公司 | Swivel chair chassis convenient to elastic component fast assembly |
| CN214103884U (en) * | 2020-11-27 | 2021-09-03 | 浙江泰丰家具有限公司 | Swivel chair tray convenient to adjust |
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| CN112603085A (en) | 2021-04-06 |
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