CN220384677U - Swivel chair chassis capable of three-dimensional adjustment - Google Patents

Abstract

The utility model discloses a swivel chair chassis capable of three-dimensionally adjusting, which belongs to the technical field of swivel chairs and comprises a fixed seat, and is characterized in that: the utility model effectively realizes flexible adjustment of three dimensions of swivel chair height, backrest angle and position in front-back direction and keeps stable.

Description

Swivel chair chassis capable of three-dimensional adjustment

Technical Field

The utility model relates to the technical field of swivel chairs, in particular to a swivel chair chassis capable of three-dimensionally adjusting.

Background

The chair is an important classification of furniture, the swivel chair is an important branch of the chair, the swivel chair is widely applied to office scenes such as office buildings, the traditional swivel chair can be used for carrying out height adjustment, so that a user is in a comfortable sitting position, but when a working space is small, the moving range of the swivel chair is limited, at this time, the position of the swivel chair in the front-back direction, which is another basic factor for ensuring the comfort of the sitting position, is difficult to flexibly adjust through a current mechanical structure, meanwhile, the backrest of the traditional swivel chair supports the back of the user through deformation of plastic materials, irreversible deformation is particularly easy to cause, stable support of the back of the user can not be carried out any more, the position of the backrest in the front-back direction is unsuitable, the unstable support of the back can particularly influence the comfort degree, and based on the fact, the flexible adjustment of the three dimensions such as the height of the swivel chair, the position in the front-back direction, the angle of the backrest and the like can be realized and kept stable when the moving range of the swivel chair is limited, so that the user keeps the comfortable sitting position of the user is maintained, and the problem of the related technical personnel is increasingly needed to be solved.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a swivel chair chassis capable of three-dimensionally adjusting.

The utility model provides a swivel chair chassis that can carry out three-dimensional adjustment, includes fixing base, its characterized in that: the fixed mount pad that sets up down in fixing base middle part, the fixed mount pad middle part sets up the installation cover down, the fixing base front portion sets up the front rotation seat, the front rotation seat front portion rotates and sets up preceding pivot, the front rotation seat rear portion sets up preceding drive shaft, preceding drive shaft with preceding rotation seat fixed connection, preceding drive shaft with the fixing base rotates to be connected, the fixing base rear portion sets up the back rotation seat, the back rotation seat front portion rotates and sets up the back drive shaft, the back rotation seat rear portion sets up the back pivot, the back pivot with back rotation seat fixed connection, the back pivot with the fixing base rotates to be connected, the fixing base top sets up the fixed plate, the fixed plate with preceding pivot, the equal fixed connection of back drive shaft, the fixed plate top sets up the slide.

Further, a second spring is arranged between the front rotating seat and the rear rotating seat, driving hooks are symmetrically and fixedly arranged at two ends of the second spring, and the front driving shaft and the rear driving shaft are respectively connected with the corresponding driving hooks.

Further, a limiting shaft is arranged between the rear driving shaft and the rear rotating shaft, the limiting shaft is fixedly connected with the rear rotating seat, a lower limiting groove is formed in the position, corresponding to the limiting shaft, of the fixing seat in a penetrating mode, and the limiting shaft is in sliding connection with the lower limiting groove.

Further, fixing base one side sets up first handle, first handle is close to fixing base one side is fixed to be set up the gag lever post, the gag lever post with the fixing base rotates to be connected, the gag lever post with back rotates the seat joint, the gag lever post middle part is fixed to be set up the limiting plate, the limiting plate with the position of spacing axle is corresponding.

Further, limiting bolts and supporting plates are symmetrically and fixedly arranged on the upper portion of the fixing plate, upper limiting grooves are symmetrically formed in two sides of the sliding plate in a penetrating mode, the upper limiting grooves are in sliding connection with the limiting bolts, the sliding plate is in sliding connection with the supporting plates, a first spring is arranged on one side of the fixing plate, hanging holes are formed in positions, corresponding to the end portions of the first spring, of the fixing plate, hooks are arranged at positions, corresponding to the end portions of the first spring, of the sliding plate, and two ends of the first spring are respectively connected with the hanging holes in a hanging mode.

Further, the front rotating seat top sets up the regulator, the regulator includes the regulation seat, the regulation seat with fixed plate fixed connection, the inside one side of regulation seat sets up the locking lever, the locking lever with the regulation seat grafting, the front rotating seat top sets up the positioning seat, positioning seat upper portion symmetry is fixed to be set up the buckle, buckle bilateral symmetry runs through and sets up the locating hole, the slide with the buckle corresponds the position and runs through and set up the card hole, the slide with the locating hole corresponds the position and runs through and set up the through-hole, the buckle with card hole joint, the locking lever with one of them the locating hole grafting.

Further, the upper portion of the lock rod is fixedly provided with a fifth spring, one side, away from the lock rod, of the adjusting seat is fixedly provided with a locating pin, the periphery of the locating pin is rotationally provided with a fourth spring, the fourth spring comprises a driving end, a penetrating end and a pressing end, the penetrating end is inserted with the fifth spring, and the pressing end is located above the fifth spring.

Further, the mount pad is fixed to be set up in mount pad one side, it sets up the rotation hole to go up mount pad upper portion, it sets up the second handle to go up the mount pad lower part, second handle upper portion with the rotation hole position rotates to be connected, second handle lower part sets up the fixed orifices, it is close to go up the mount pad adjust seat one side and set up fixed cover, fixed cover both ends respectively with go up mount pad, adjustment seat fixed connection, the inside stay cord that sets up of fixed cover, stay cord one end with fixed orifices position fixed connection, the stay cord other end is fixed to set up spacing ball, spacing ball with initiative end joint.

Further, a third spring is arranged on the periphery of the lock rod, the lower end of the third spring is fixedly connected with the adjusting seat, and the upper end of the third spring is fixedly connected with the lock rod.

The swivel chair chassis capable of three-dimensional adjustment has the beneficial effects that:

1. the user only needs to draw out the first handle, the front rotating seat and the rear rotating seat synchronously rotate under the pulling of the driving hook, the back rotating seat rotates to enable the backrest to be stably attached to the back of the user, the user only needs to lean backwards or lean forwards, the backrest angle can be flexibly adjusted, the front rotating seat and the rear rotating seat synchronously rotate to enable the fixed plate and the sliding plate to keep a horizontal state to ascend or descend, after the comfortable state is achieved, the first handle is reset and rotated by a certain angle until the limiting plate is in contact with the limiting shaft, and the adjustment of the height of the swivel chair and the backrest angle can be completed and kept stable;

2. the user only need lift the second handle, can make the locking lever move down and release the grafting locking with the positioning seat through "acting as go-between-stop ball-fourth spring-fifth spring" transmission route, and then can adjust the position of slide in the fore-and-aft direction in a flexible way, and when reaching comfortable position, release the second handle, make locking lever and nearest locating hole grafting, in this process, first spring provides the resistance when the slide moves forward, provide pulling force when the slide moves backward, make the adjustment process keep high-efficient, stable, so far can accomplish the flexible adjustment to the swivel chair in fore-and-aft direction position and make it keep stable.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will simply describe the drawings used in the embodiments or the description of the prior art, but does not limit the scope of protection of the present utility model.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the structure of the present utility model (not shown in the skateboard);

FIG. 4 is a partial enlarged view at B in FIG. 3;

FIG. 5 is a schematic view of the structure of the present utility model (not shown, skateboard, stationary board);

FIG. 6 is a schematic view (one) of the angle and height adjusting part according to the present utility model;

FIG. 7 is a schematic view of the angle and height adjusting part of the present utility model;

fig. 8 is a schematic structural view of a front-rear position adjusting portion of the present utility model;

FIG. 9 is an enlarged view of a portion of FIG. 8 at C;

fig. 10 is a partial enlarged view of D in fig. 8.

The device comprises a 1-upper mounting seat, a 2-sliding plate, a 3-upper limit groove, a 4-first handle, a 5-fixed sleeve, a 6-hook, a 7-locating hole, an 8-buckle, a 9-fixed plate, a 10-locating seat, an 11-supporting plate, a 12-limit bolt, a 13-hanging hole, a 14-first spring, a 15-second handle, a 16-fixed seat, a 17-rear rotating seat, a 18-driving hook, a 19-second spring, a 20-front rotating seat, a 21-regulator, a 22-limit rod, a 23-mounting sleeve, a 24-lower mounting seat, a 25-limit plate, a 26-front rotating shaft, a 27-front driving shaft, a 28-lower limit groove, a 29-limit shaft, a 30-rear rotating shaft, a 31-rear driving shaft, a 32-penetrating end, a 33-pressing end, a 34-regulating seat, a 35-third spring, a 36-locking rod, a 37-limit ball, a 38-pulling rope, a 39-driving end, a 40-locating pin, a 41-fourth spring, a 42-fifth spring, a 43-fixing hole and a 44-rotating hole.

Detailed Description

For clarity of description, a three-dimensional adjustable swivel chair chassis according to the present utility model will be further described with reference to fig. 1 to 10 of the drawings.

The utility model provides a swivel chair chassis that can carry out three-dimensional adjustment, includes fixing base 16, its characterized in that: the fixed lower mount pad 24 that sets up in fixing base 16 middle part, the fixed mount pad 23 that sets up in lower mount pad 24 middle part, the fixing base 16 front portion sets up preceding rotation seat 20, preceding rotation seat 20 front portion rotates and sets up front axle 26, preceding rotation seat 20 rear portion sets up front drive axle 27, front drive axle 27 with preceding rotation seat 20 fixed connection, front drive axle 27 with fixing base 16 rotates to be connected, fixing base 16 rear portion sets up back rotation seat 17, back rotation seat 17 front portion rotates and sets up back drive axle 31, back rotation seat 17 rear portion sets up back pivot 30, back pivot 30 with back rotation seat 17 fixed connection, back pivot 30 with fixing base 16 rotates to be connected, fixing base 16 top sets up fixed plate 9, fixed plate 9 with front axle 26, back drive axle 31 all fixed connection, fixed plate 9 top sets up slide 2.

Further, a second spring 19 is disposed between the front rotating seat 20 and the rear rotating seat 17, driving hooks 18 are symmetrically and fixedly disposed at two ends of the second spring 19, and the front driving shaft 27 and the rear driving shaft 31 are respectively connected with the corresponding driving hooks 18 in a hanging manner.

Further, a limiting shaft 29 is disposed between the rear driving shaft 31 and the rear rotating shaft 30, the limiting shaft 29 is fixedly connected with the rear rotating seat 17, a lower limiting groove 28 is disposed through the fixing seat 16 and the corresponding position of the limiting shaft 29, and the limiting shaft 29 is slidably connected with the lower limiting groove 28.

Further, a first handle 4 is disposed on one side of the fixed seat 16, a limit rod 22 is fixedly disposed on one side of the first handle 4, which is close to the fixed seat 16, the limit rod 22 is rotatably connected with the fixed seat 16, the limit rod 22 is clamped with the rear rotating seat 17, a limit plate 25 is fixedly disposed in the middle of the limit rod 22, and the position of the limit plate 25 corresponds to that of the limit shaft 29.

Further, the fixed limiting bolt 12 and the supporting plate 11 are symmetrically and fixedly arranged on the upper portion of the fixed plate 9, the upper limiting groove 3 is symmetrically and fixedly arranged on two sides of the sliding plate 2 in a penetrating mode, the upper limiting groove 3 is in sliding connection with the limiting bolt 12, the sliding plate 2 is in sliding connection with the supporting plate 11, a first spring 14 is arranged on one side of the fixed plate 9, a hanging hole 13 is formed in a position, corresponding to the end portion of the first spring 14, of the fixed plate 9, a hanging hook 6 is arranged in a position, corresponding to the end portion of the first spring 14, of the sliding plate 2, and two ends of the first spring 14 are respectively connected with the hanging hole 13 and the hanging hook 6 in a hanging mode.

Further, the regulator 21 is arranged above the front rotating seat 20, the regulator 21 comprises a regulating seat 34, the regulating seat 34 is fixedly connected with the fixed plate 9, a lock rod 36 is arranged on one side inside the regulating seat 34, the lock rod 36 is inserted into the regulating seat 34, a positioning seat 10 is arranged above the front rotating seat 20, a buckle 8 is symmetrically and fixedly arranged on the upper portion of the positioning seat 10, positioning holes 7 are symmetrically and fixedly arranged on two sides of the buckle 8 in a penetrating manner, clamping holes are correspondingly arranged on the positions, corresponding to the buckle 8, of the sliding plate 2, through holes are correspondingly arranged on the positions, corresponding to the positioning holes 7, of the sliding plate 2, the buckle 8 is in clamping connection with the clamping holes, and the lock rod 36 is inserted into one of the positioning holes 7.

Further, a fifth spring 42 is fixedly disposed on the upper portion of the lock rod 36, a positioning pin 40 is fixedly disposed on one side, away from the lock rod 36, of the adjusting seat 34, a fourth spring 41 is rotatably disposed on the periphery of the positioning pin 40, the fourth spring 41 includes a driving end 39, a penetrating end 32, and a pressing end 33, the penetrating end 32 is inserted into the fifth spring 42, and the pressing end 33 is located above the fifth spring 42.

Further, the adjusting seat 34 is fixedly provided with the upper mounting seat 1, the upper portion of the upper mounting seat 1 is provided with a rotating hole 44, the lower portion of the upper mounting seat 1 is provided with a second handle 15, the upper portion of the second handle 15 is rotationally connected with the position of the rotating hole 44, the lower portion of the second handle 15 is provided with a fixing hole 43, the upper mounting seat 1 is close to one side of the adjusting seat 34 and is provided with a fixing sleeve 5, two ends of the fixing sleeve 5 are respectively fixedly connected with the upper mounting seat 1 and the adjusting seat 34, a pull rope 38 is arranged in the fixing sleeve 5, one end of the pull rope 38 is fixedly connected with the position of the fixing hole 43, the other end of the pull rope 38 is fixedly provided with a limiting ball 37, and the limiting ball 37 is clamped with the driving end 39.

Further, a third spring 35 is disposed at the periphery of the lock rod 36, the lower end of the third spring 35 is fixedly connected with the adjusting seat 34, and the upper end of the third spring 35 is fixedly connected with the lock rod 36.

The working principle of the swivel chair chassis capable of three-dimensional adjustment is as follows: the swivel chair chassis is positioned at the middle position of the swivel chair, the lower structure of the swivel chair is fixedly connected with a mounting sleeve 23, the upper structure of the swivel chair is fixedly connected with a sliding plate 2, a first handle 4 is held, a limiting rod 22 is pulled out for a certain length, the clamping connection between the limiting rod 22 and a rear rotating seat 17 is released, a second spring 19 simultaneously pulls driving hooks 18 at two ends of the second spring, a front rotating seat 20 rotates upwards around a front driving shaft 27, a rear rotating seat 17 rotates upwards around a rear rotating shaft 30, a backrest arranged on the rear rotating seat 17 keeps stably attached to the back of a user after the user leans backwards to a comfortable posture, the limiting rod 22 is reset, the first handle 4 is rotated until a limiting plate 25 is stably propped against a limiting shaft 29, in the process, the rotation of the front rotating seat 20 is matched with the rotation of the rear rotating seat 17, the fixed plate 9 and the sliding plate 2 keep a horizontal state and rise simultaneously, the adjustment of the height and the backrest angle of the swivel chair can be completed, the second handle 15 is held and lifted up, the pull rope 38 is pulled by the second handle 15, the driving end 39 is pulled by the limiting ball 37, the fourth spring 41 is driven to rotate around the positioning pin 40, the penetrating end 32 and the pressing end 33 simultaneously press the fifth spring 42 downwards, the lock rod 36 moves downwards along with the fifth spring 42, leaves the positioning hole 7 and releases the locking of the positioning seat 10, the user needs to move the slide plate 2 forwards, sits on the swivel chair and applies force forwards, the limit bolt 12 limits the upper limit groove 3 and stably supports the support plate 11, the slide plate 2 drives the upper structure of the swivel chair connected with the slide plate 2 to move forwards, when the slide plate moves forwards to a proper position, the second handle 15 and the lock rod 36 are released upwards under the action of the third spring 35 and are spliced with the corresponding positioning hole 7, the slide plate 2 is locked again, so that the adjustment of the position of the swivel chair in the front-back direction can be completed, and the user can keep the sitting posture in a comfortable way by stabilizing the sitting posture in the adjusted state.

The above is merely a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions that do not undergo the inventive work should be covered in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims (9)

1. The utility model provides a swivel chair chassis that can carry out three-dimensional adjustment, includes fixing base, its characterized in that: the fixed mount pad that sets up down in fixing base middle part, the fixed mount pad middle part sets up the installation cover down, the fixing base front portion sets up the front rotation seat, the front rotation seat front portion rotates and sets up preceding pivot, the front rotation seat rear portion sets up preceding drive shaft, preceding drive shaft with preceding rotation seat fixed connection, preceding drive shaft with the fixing base rotates to be connected, the fixing base rear portion sets up the back rotation seat, the back rotation seat front portion rotates and sets up the back drive shaft, the back rotation seat rear portion sets up the back pivot, the back pivot with back rotation seat fixed connection, the back pivot with the fixing base rotates to be connected, the fixing base top sets up the fixed plate, the fixed plate with preceding pivot, the equal fixed connection of back drive shaft, the fixed plate top sets up the slide.

2. The swivel chair chassis capable of three-dimensional adjustment according to claim 1, wherein a second spring is arranged between the front rotating seat and the rear rotating seat, driving hooks are symmetrically and fixedly arranged at two ends of the second spring, and the front driving shaft and the rear driving shaft are respectively hooked with the corresponding driving hooks.

3. The swivel chair chassis capable of three-dimensional adjustment according to claim 1, wherein a limiting shaft is arranged between the rear driving shaft and the rear rotating shaft, the limiting shaft is fixedly connected with the rear rotating seat, a lower limiting groove is arranged through the fixing seat at a position corresponding to the limiting shaft, and the limiting shaft is in sliding connection with the lower limiting groove.

4. The swivel chair chassis capable of three-dimensional adjustment according to claim 3, wherein a first handle is arranged on one side of the fixing seat, a limiting rod is fixedly arranged on one side of the first handle, which is close to the fixing seat, the limiting rod is rotationally connected with the fixing seat, the limiting rod is clamped with the rear rotating seat, a limiting plate is fixedly arranged in the middle of the limiting rod, and the limiting plate corresponds to the position of the limiting shaft.

5. The swivel chair chassis capable of three-dimensional adjustment according to claim 1, wherein the upper portion of the fixing plate is symmetrically and fixedly provided with a limit bolt and a support plate, two sides of the sliding plate are symmetrically and fixedly provided with upper limit grooves, the upper limit grooves are in sliding connection with the limit bolt, the sliding plate is in sliding connection with the support plate, one side of the fixing plate is provided with a first spring, the fixing plate is provided with a hanging hole corresponding to the end portion of the first spring, the sliding plate is provided with a hanging hook corresponding to the end portion of the first spring, and two ends of the first spring are respectively hung with the hanging hole and the hanging hook.

6. The swivel chair chassis capable of three-dimensional adjustment according to claim 1, wherein an adjustor is arranged above the front rotating seat, the adjustor comprises an adjusting seat, the adjusting seat is fixedly connected with the fixing plate, a lock rod is arranged on one side inside the adjusting seat, the lock rod is inserted into the adjusting seat, a positioning seat is arranged above the front rotating seat, a buckle is symmetrically and fixedly arranged on the upper portion of the positioning seat, positioning holes are symmetrically and fixedly arranged on two sides of the buckle in a penetrating mode, a clamping hole is arranged in a penetrating mode at positions corresponding to the sliding plate and the buckle, a through hole is arranged in a penetrating mode at positions corresponding to the positioning holes, the buckle is in clamping connection with the clamping hole, and the lock rod is inserted into one of the positioning holes.

7. The swivel chair chassis capable of three-dimensional adjustment according to claim 6, wherein a fifth spring is fixedly arranged on the upper portion of the lock rod, a positioning pin is fixedly arranged on one side, away from the lock rod, of the adjusting seat, a fourth spring is rotatably arranged on the periphery of the positioning pin, the fourth spring comprises a driving end, a penetrating end and a pressing end, the penetrating end is inserted into the fifth spring, and the pressing end is located above the fifth spring.

8. The swivel chair chassis capable of three-dimensional adjustment according to claim 7, wherein an upper mounting seat is fixedly arranged on one side of the adjusting seat, a rotating hole is formed in the upper portion of the upper mounting seat, a second handle is arranged on the lower portion of the upper mounting seat, the upper portion of the second handle is rotatably connected with the position of the rotating hole, a fixing hole is formed in the lower portion of the second handle, a fixing sleeve is arranged on one side, close to the adjusting seat, of the upper mounting seat, two ends of the fixing sleeve are fixedly connected with the upper mounting seat and the adjusting seat respectively, a pull rope is arranged inside the fixing sleeve, one end of the pull rope is fixedly connected with the position of the fixing hole, a limiting ball is fixedly arranged on the other end of the pull rope, and the limiting ball is in clamping connection with the driving end.

9. The swivel chair chassis capable of three-dimensional adjustment according to claim 7, wherein a third spring is arranged on the periphery of the lock rod, the lower end of the third spring is fixedly connected with the adjusting seat, and the upper end of the third spring is fixedly connected with the lock rod.