CN209202497U - A kind of height-adjustable office chair of overturning-preventing - Google Patents
A kind of height-adjustable office chair of overturning-preventing Download PDFInfo
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- CN209202497U CN209202497U CN201821484468.2U CN201821484468U CN209202497U CN 209202497 U CN209202497 U CN 209202497U CN 201821484468 U CN201821484468 U CN 201821484468U CN 209202497 U CN209202497 U CN 209202497U
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- support column
- fixedly connected
- screwed pipe
- thread road
- overturning
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Abstract
The utility model discloses a kind of height-adjustable office chairs of overturning-preventing, including seat body, the bottom surface of the seat body is fixedly connected with mounting blocks, the middle part fixation of mounting blocks bottom surface is inlaid with the first screwed pipe, support column is placed with below mounting blocks, the bottom surface of support column is fixedly connected with bottom plate, the inside of support column offers cavity, the upper surface fixation of support column is inlaid with first bearing, and the left and right sides of support column offer through slot, and the inside of cavity is placed with the second screwed pipe.The height-adjustable office chair of the overturning-preventing, by being provided with connecting tube, connecting rod and plus thread road, it can make the first screwed pipe that mounting blocks and seat body be driven to rise, by being provided with left-hand thread road and the second screwed pipe, with the use of the second pin shaft and the first pin shaft, push-pull rod can be made to push two fixed block relative motions, the device is made to increase the bearing area with ground, the stability for improving the device keeps its more convenient to use.
Description
Technical field
The utility model relates to office chair technical field, specially a kind of height-adjustable office chair of overturning-preventing.
Background technique
Office chair refers to that, for the various chairs that work is convenient and is equipped in routine work and social activities, the partner that handles official business will do
Public chair is divided into narrow sense and broad sense, and the office chair of narrow sense refers to the chair sat when people carries out desktop work under sitting posture state,
The office chair of broad sense is all chairs for office, including executive chair, middle class in a kindergarten chair, chair of receiving a visitor, office worker's chair, conference chair, visit
Objective chair and training chair etc..
It commonly uses height-adjustable office chair during use, the poor problem of overturning-preventing performance often occurs,
Because office chair causes support center to change when being turned up, make the reduction of its stability, there are certain security risks, make it
It is inconvenient to use.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of height-adjustable office chair of overturning-preventing, solves
The overturning-preventing performance poor of office chair.
(2) technical solution
To achieve the above object, the utility model provides the following technical solutions: a kind of height-adjustable office of overturning-preventing
Chair, including seat body, the bottom surface of the seat body are fixedly connected with mounting blocks, the fixed edge in the middle part of the mounting blocks bottom surface
Embedded with the first screwed pipe, support column is placed with below the mounting blocks, the bottom surface of the support column is fixedly connected with bottom plate, institute
The inside for stating support column offers cavity, and the upper surface fixation of the support column is inlaid with first bearing, a left side for the support column
Right two sides offer through slot, and the inside of the cavity is placed with the second screwed pipe, and the inner bottom wall fixation of the cavity is inlayed
There is second bearing, the inner ring of the second bearing is fixedly connected with rotating bar, and the top of the rotating bar sequentially passes through the second spiral shell
Line pipe and first bearing and the top for extending to support column, the outer surface of the rotating bar offer plus thread road and anti-respectively
Screw thread road, and plus thread road and left-hand thread road are in symmetry shape, the plus thread road is located at the top on left-hand thread road,
The plus thread road is threadedly coupled with the first screwed pipe, and left-hand thread road is threadedly coupled with left-hand thread road.
The bottom surfaces of the mounting blocks is fixed to inlay that there are two symmetrical connecting tubes, and two connecting tubes are located at first
The left and right sides of screwed pipe, the inside of each connecting tube are socketed with connecting rod, the bottom surface of two connecting rods with
The upper surface of support column is fixedly connected, and the outer surface in the middle part of the rotating bar is fixedly connected with the first helical gear, the support column
Right side fixation be inlaid with 3rd bearing, the axis of rolling is placed on the right side of the support column, the left end of the axis of rolling is run through
3rd bearing and the inside for extending to cavity, and the outer surface of the axis of rolling is fixedly connected with the inner ring of 3rd bearing, the rolling
The left side of axis is fixedly connected with the second helical gear, and the first helical gear is meshed with the second helical gear, the left and right of the bottom plate
Two sides are placed with fixed block, and by two the first pin shaft fixed hinges, there are two push-and-pulls for the outer surface of second screwed pipe
Bar, one end that two push-pull rods are located remotely from each other pass through the second pin shaft fixed hinge with the outer surface of two fixed blocks respectively,
The left and right sides of the bottom plate are fixed to be inlaid with positioning pipe, and the inside of each positioning pipe is socketed with locating rod, and two
The one side that a locating rod is located remotely from each other is fixedly connected with two fixed block one sides close to each other respectively.
Preferably, the right side of the axis of rolling is fixedly connected with turntable, and the right side of the turntable is fixedly connected with handle
Hand.
Preferably, the outer surface of the rotating bar is fixedly connected with limit plate, and limit plate is located at the first helical gear and
Between two screwed pipes.
Preferably, the bottom surface of the bottom plate is fixedly connected with non-slip mat, the non-slip mats such as horizontal length value of the bottom plate
Horizontal length value.
Preferably, the described first helical gear size and second helical gear equal in magnitude, the first helical gear place
Horizontal plane and the second helical gear where the perpendicular shape of vertical plane.
Preferably, the vertical plane where the connecting rod and the vertical plane where rotating bar are in flat shape, the connecting rod
The vertical plane at place and the perpendicular shape of vertical plane where support column.
(3) beneficial effect
The utility model provides a kind of height-adjustable office chair of overturning-preventing, have it is following the utility model has the advantages that
(1) the height-adjustable office chair of the overturning-preventing is used cooperatively turntable, can make to roll by being provided with handle
Axis rotation is more convenient, adjusts the device quicker, by being provided with limit plate, can effectively avoid the second screwed pipe sliding
De- left-hand thread road leads to stuck problem, improves the stability of the device, by being provided with non-slip mat, can effectively increase
The frictional force of the device and ground avoids the problem that the device breaks away.
(2) the height-adjustable office chair of the overturning-preventing, by being provided with connecting tube, connecting rod and plus thread road, energy
Enough make the first screwed pipe that mounting blocks and seat body be driven to rise, by being provided with left-hand thread road and the second screwed pipe, cooperates
Using the second pin shaft and the first pin shaft, push-pull rod can be made to push two fixed block relative motions, make device increase and ground
Bearing area, improve the stability of the device, keep its more convenient to use.
Detailed description of the invention
Fig. 1 is the sectional view of the utility model mounting blocks main view；
Fig. 2 is structure enlargement diagram at B in the utility model Fig. 1；
Fig. 3 is structure enlargement diagram at A in the utility model Fig. 1.
In figure: 1 seat body, 2 mounting blocks, 3 connecting tubes, 4 first screwed pipes, 5 connecting rods, 6 plus thread roads, 7 handles,
8 axis of rolling, 9 turntables, 10 3rd bearings, 11 fixed blocks, 12 push-pull rods, 13 positioning pipes, 14 non-slip mats, 15 second bearings, 16 are instead
Screw thread road, 17 locating rods, 18 second pin shafts, 19 through slots, 20 support columns, 21 first bearings, 22 second helical gears, 23 limits
Plate, 24 first helical gears, 25 rotating bars, 26 first pin shafts, 27 second screwed pipes, 28 cavitys, 29 bottom plates.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of height-adjustable office chair of overturning-preventing,
Including seat body 1, the bottom surface of seat body 1 is fixedly connected with mounting blocks 2, and the middle part of 2 bottom surface of mounting blocks is fixed to be inlaid with the
One screwed pipe 4, the lower section of mounting blocks 2 are placed with support column 20, and the bottom surface of support column 20 is fixedly connected with bottom plate 29, bottom plate 29
Bottom surface is fixedly connected with non-slip mat 14, and the horizontal length value of the non-slip mats such as horizontal length value of bottom plate 29 14 can effectively increase
The frictional force of the device and ground avoids the problem that the device breaks away, and the inside of support column 20 offers cavity 28, support
The upper surface fixation of column 20 is inlaid with first bearing 21, and the left and right sides of support column 20 offer through slot 19, cavity 28
Inside is placed with the second screwed pipe 27, and the inner bottom wall of cavity 28 is fixed to be inlaid with second bearing 15, and the inner ring of second bearing 15 is solid
Surely it is connected with rotating bar 25, the outer surface of rotating bar 25 is fixedly connected with limit plate 23, and limit plate 23 is located at the first helical gear
24 and second between screwed pipe 27, and can effectively avoid the second screwed pipe 27 from slipping left-hand thread road 16 leads to stuck problem,
The stability of the device is improved, the top of rotating bar 25 sequentially passes through the second screwed pipe 27 and first bearing 21 and extends to branch
The top of dagger 20, the outer surface of rotating bar 25 offer plus thread road 6 and left-hand thread road 16, and plus thread road respectively
6 and left-hand thread road 16 be in symmetry shape, plus thread road 6 is located at the top on left-hand thread road 16, plus thread road 6 and the first spiral shell
Line pipe 4 is threadedly coupled, and left-hand thread road 16 is threadedly coupled with left-hand thread road 16.
The bottom surfaces of mounting blocks 2 is fixed to inlay that there are two symmetrical connecting tubes 3, and two connecting tubes 3 are located at first
The left and right sides of screwed pipe 4, the inside of each connecting tube 3 are socketed with connecting rod 5, vertical plane and rotation where connecting rod 5
Vertical plane where bar 25 is in flat shape, the perpendicular shape of vertical plane where vertical plane and support column 20 where connecting rod 5, energy
Increase vertically seat body 1, avoid the occurrence of when seat body 1 rises and the problem of inclination causes center of gravity to tilt occur,
The bottom surface of two connecting rods 5 is fixedly connected with the upper surface of support column 20, and the outer surface at 25 middle part of rotating bar is fixedly connected with
First helical gear 24, the size of the first helical gear 24 is equal in magnitude with the second helical gear 22, the water where the first helical gear 24
The perpendicular shape of vertical plane where plane and the second helical gear 22 can make the rotation of rotating bar 25 more steady, improve the dress
The right side fixation of the stability set, support column 20 is inlaid with 3rd bearing 10, and the right side of support column 20 is placed with the axis of rolling 8,
The right side of the axis of rolling 8 is fixedly connected with turntable 9, and the right side of turntable 9 is fixedly connected with handle 7, and the axis of rolling 8 can be made to rotate
It is more convenient, adjust the device quicker, the left end of the axis of rolling 8 through 3rd bearing 10 and extends to the interior of cavity 28
Portion, and the outer surface of the axis of rolling 8 is fixedly connected with the inner ring of 3rd bearing 10, the left side of the axis of rolling 8 is fixedly connected with second
Helical gear 22, and the first helical gear 24 is meshed with the second helical gear 22, the left and right sides of bottom plate 29 is placed with fixed block 11,
By two 26 fixed hinges of the first pin shaft there are two push-pull rod 12, two push-pull rods 12 are mutual for the outer surface of second screwed pipe 27
Separate one end passes through 18 fixed hinge of the second pin shaft, the left and right sides of bottom plate 29 with the outer surface of two fixed blocks 11 respectively
Fixation is inlaid with positioning pipe 13, and the inside of each positioning pipe 13 is socketed with locating rod 17, and two locating rods 17 are located remotely from each other
One side be fixedly connected respectively with two one sides close to each other of fixed block 11.
Working principle: handle 7 is caught to rotate turntable 9, the axis of rolling 8 and the second helical gear 22 by staff, tiltedly first
Under the action of gear 24, rotating bar 25 is rotated, under the action of connecting tube 3, connecting rod 5 and plus thread road 6, makes the first spiral shell
Line pipe 4 drives mounting blocks 2 and seat body 1 to rise, and under the action of left-hand thread road 16, declines the second screwed pipe 27,
Under the action of second pin shaft 18 and the first pin shaft 26, push-pull rod 12 is made to push two 11 relative motions of fixed block, increases the device
Greatly with the bearing area on ground, work is completed.
In conclusion the height-adjustable office chair of the overturning-preventing is used cooperatively turntable 9, energy by being provided with handle 7
It enough rotates the axis of rolling 8 more convenient, adjusts the device quicker, by being provided with limit plate 23, can effectively avoid
Second screwed pipe 27, which slips left-hand thread road 16, leads to stuck problem, improves the stability of the device, anti-by being provided with
Skidding 14 can effectively increase the frictional force on the device and ground, avoid the problem that the device breaks away, pass through the company of being provided with
Adapter tube 3, connecting rod 5 and plus thread road 6 can make the first screwed pipe 4 that mounting blocks 2 and seat body 1 be driven to rise, by setting
It is equipped with left-hand thread road 16 and the second screwed pipe 27, the second pin shaft 18 and the first pin shaft 26 is used cooperatively, push-pull rod 12 can be made
Two 11 relative motions of fixed block are pushed, so that the device is increased the bearing area with ground, improves the stability of the device, make
Its is more convenient to use.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of height-adjustable office chair of overturning-preventing, including seat body (1), it is characterised in that: the seat body (1)
Bottom surface be fixedly connected with mounting blocks (2), the fixation of the middle part of mounting blocks (2) bottom surface is inlaid with the first screwed pipe (4), described
It is placed with below mounting blocks (2) support column (20), the bottom surface of the support column (20) is fixedly connected with bottom plate (29), the branch
The inside of dagger (20) offers cavity (28), and the upper surface fixation of the support column (20) is inlaid with first bearing (21), institute
The left and right sides for stating support column (20) offer through slot (19), and the inside of the cavity (28) is placed with the second screwed pipe
(27), the inner bottom wall fixation of the cavity (28) is inlaid with second bearing (15), and the inner ring of the second bearing (15) is fixed to be connected
It is connected to rotating bar (25), the top of the rotating bar (25) sequentially passes through the second screwed pipe (27) and first bearing (21) and extends
To the top of support column (20), the outer surface of the rotating bar (25) offers plus thread road (6) and left-hand thread road respectively
(16), and plus thread road (6) and left-hand thread road (16) are in symmetry shape, and the plus thread road (6) is located at left-hand thread road
(16) top, the plus thread road (6) is threadedly coupled with the first screwed pipe (4), and left-hand thread road (16) and left-hand thread
Road (16) is threadedly coupled；
The bottom surfaces of the mounting blocks (2) is fixed to inlay there are two symmetrical connecting tube (3), and two connecting tubes (3) positions respectively
It is socketed with connecting rod (5) in the inside of the left and right sides of the first screwed pipe (4), each connecting tube (3), two companies
The bottom surface of extension bar (5) is fixedly connected with the upper surface of support column (20), and the outer surface in the middle part of the rotating bar (25) is fixed to be connected
It is connected to the first helical gear (24), the right side fixation of the support column (20) is inlaid with 3rd bearing (10), the support column
(20) it is placed on the right side of the axis of rolling (8), the left end of the axis of rolling (8) through 3rd bearing (10) and extends to cavity (28)
Inside, and the outer surface of the axis of rolling (8) is fixedly connected with the inner ring of 3rd bearing (10), the left side of the axis of rolling (8)
It is fixedly connected with the second helical gear (22), and the first helical gear (24) is meshed with the second helical gear (22), the bottom plate (29)
The left and right sides be placed with fixed block (11), the outer surface of second screwed pipe (27) is solid by two the first pin shafts (26)
It is fixed hinged there are two push-pull rod (12), one end that two push-pull rods (12) are located remotely from each other respectively with two fixed blocks (11)
Outer surface is inlaid with positioning pipe by the second pin shaft (18) fixed hinge, the fixation of the left and right sides of the bottom plate (29)
(13), the inside of each positioning pipe (13) is socketed with locating rod (17), what two locating rods (17) were located remotely from each other
One side is fixedly connected with two fixed block (11) one sides close to each other respectively.
2. the height-adjustable office chair of a kind of overturning-preventing according to claim 1, it is characterised in that: the axis of rolling
(8) right side is fixedly connected with turntable (9), and the right side of the turntable (9) is fixedly connected with handle (7).
3. the height-adjustable office chair of a kind of overturning-preventing according to claim 1, it is characterised in that: the rotating bar
(25) outer surface is fixedly connected with limit plate (23), and limit plate (23) is located at the first helical gear (24) and the second screwed pipe
(27) between.
4. the height-adjustable office chair of a kind of overturning-preventing according to claim 1, it is characterised in that: the bottom plate (29)
Bottom surface be fixedly connected with non-slip mat (14), the horizontal length value of the non-slip mats (14) such as horizontal length value of the bottom plate (29).
5. the height-adjustable office chair of a kind of overturning-preventing according to claim 1, it is characterised in that: first helical teeth
The size of wheel (24) is equal in magnitude with the second helical gear (22), and the horizontal plane and second where first helical gear (24) is tiltedly
The perpendicular shape of vertical plane where gear (22).
6. the height-adjustable office chair of a kind of overturning-preventing according to claim 1, it is characterised in that: the connecting rod
(5) vertical plane where vertical plane and rotating bar (25) where is in flat shape, vertical plane and branch where the connecting rod (5)
The perpendicular shape of vertical plane where dagger (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484468.2U CN209202497U (en) | 2018-09-12 | 2018-09-12 | A kind of height-adjustable office chair of overturning-preventing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484468.2U CN209202497U (en) | 2018-09-12 | 2018-09-12 | A kind of height-adjustable office chair of overturning-preventing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209202497U true CN209202497U (en) | 2019-08-06 |
Family
ID=67453921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821484468.2U Active CN209202497U (en) | 2018-09-12 | 2018-09-12 | A kind of height-adjustable office chair of overturning-preventing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209202497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114052386A (en) * | 2021-10-25 | 2022-02-18 | 江苏可一文化产业集团股份有限公司 | Multi-functional podium suitable for remote teaching |
-
2018
- 2018-09-12 CN CN201821484468.2U patent/CN209202497U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114052386A (en) * | 2021-10-25 | 2022-02-18 | 江苏可一文化产业集团股份有限公司 | Multi-functional podium suitable for remote teaching |
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